mono/mini/mini.c

   1 /*
   2  * mini.c: The new Mono code generator.
   3  *
   4  * Author:
   5  *   Paolo Molaro (lupus@ximian.com)
   6  *   Dietmar Maurer (dietmar@ximian.com)
   7  *
   8  * (C) 2002 Ximian, Inc.
   9  */
  10
  11 #include <config.h>
  12 #include <signal.h>
  13 #include <unistd.h>
  14 #include <math.h>
  15 #include <sys/time.h>
  16
  17 #ifdef HAVE_VALGRIND_MEMCHECK_H
  18 #include <valgrind/memcheck.h>
  19 #endif
  20
  21 #include <mono/metadata/assembly.h>
  22 #include <mono/metadata/loader.h>
  23 #include <mono/metadata/cil-coff.h>
  24 #include <mono/metadata/tabledefs.h>
  25 #include <mono/metadata/class.h>
  26 #include <mono/metadata/object.h>
  27 #include <mono/metadata/exception.h>
  28 #include <mono/metadata/opcodes.h>
  29 #include <mono/metadata/mono-endian.h>
  30 #include <mono/metadata/tokentype.h>
  31 #include <mono/metadata/tabledefs.h>
  32 #include <mono/metadata/threads.h>
  33 #include <mono/metadata/marshal.h>
  34 #include <mono/metadata/socket-io.h>
  35 #include <mono/metadata/appdomain.h>
  36 #include <mono/metadata/debug-helpers.h>
  37 #include <mono/io-layer/io-layer.h>
  38 #include "mono/metadata/profiler.h"
  39 #include <mono/metadata/profiler-private.h>
  40 #include <mono/metadata/mono-config.h>
  41 #include <mono/metadata/environment.h>
  42 #include <mono/metadata/mono-debug.h>
  43 #include <mono/metadata/monitor.h>
  44 #include <mono/metadata/security-manager.h>
  45 #include <mono/metadata/threads-types.h>
  46 #include <mono/metadata/rawbuffer.h>
  47 #include <mono/utils/mono-math.h>
  48 #include <mono/utils/mono-compiler.h>
  49 #include <mono/utils/mono-counters.h>
  50 #include <mono/utils/mono-logger.h>
  51 #include <mono/os/gc_wrapper.h>
  52
  53 #include "mini.h"
  54 #include <string.h>
  55 #include <ctype.h>
  56 #include "inssel.h"
  57 #include "trace.h"
  58
  59 #include "jit-icalls.h"
  60
  61 #include "aliasing.h"
  62
  63 #define BRANCH_COST 100
  64 #define INLINE_LENGTH_LIMIT 20
  65 #define INLINE_FAILURE do {\
  66                 if ((cfg->method != method) && (method->wrapper_type == MONO_WRAPPER_NONE))\
  67                         goto inline_failure;\
  68         } while (0)
  69
  70 /*
  71  * this is used to determine when some branch optimizations are possible: we exclude FP compares
  72  * because they have weird semantics with NaNs.
  73  */
  74 #define MONO_IS_COND_BRANCH_OP(ins) (((ins)->opcode >= CEE_BEQ && (ins)->opcode <= CEE_BLT_UN) || ((ins)->opcode >= OP_LBEQ && (ins)->opcode <= OP_LBLT_UN) || ((ins)->opcode >= OP_FBEQ && (ins)->opcode <= OP_FBLT_UN) || ((ins)->opcode >= OP_IBEQ && (ins)->opcode <= OP_IBLT_UN))
  75 #define MONO_IS_COND_BRANCH_NOFP(ins) (MONO_IS_COND_BRANCH_OP(ins) && (ins)->inst_left->inst_left->type != STACK_R8)
  76
  77 #define MONO_IS_BRANCH_OP(ins) (MONO_IS_COND_BRANCH_OP(ins) || ((ins)->opcode == CEE_BR) || ((ins)->opcode == OP_BR_REG) || ((ins)->opcode == CEE_SWITCH))
  78
  79 #define MONO_CHECK_THIS(ins) (mono_method_signature (cfg->method)->hasthis && (ins)->ssa_op == MONO_SSA_LOAD && (ins)->inst_left->inst_c0 == 0)
  80
  81 static void setup_stat_profiler (void);
  82 gboolean  mono_arch_print_tree(MonoInst *tree, int arity);
  83 static gpointer mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt);
  84 static gpointer mono_jit_compile_method (MonoMethod *method);
  85 static gpointer mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method);
  86 static gpointer mono_create_jit_trampoline_in_domain (MonoDomain *domain, MonoMethod *method);
  87
  88 static void handle_stobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, MonoInst *src,
  89                           const unsigned char *ip, MonoClass *klass, gboolean to_end, gboolean native, gboolean write_barrier);
  90
  91 static void dec_foreach (MonoInst *tree, MonoCompile *cfg);
  92
  93 static int mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
  94                    int locals_offset, MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
  95                    guint inline_offset, gboolean is_virtual_call);
  96
  97 /* helper methods signature */
  98 static MonoMethodSignature *helper_sig_class_init_trampoline = NULL;
  99 static MonoMethodSignature *helper_sig_domain_get = NULL;
 100
 101 static guint32 default_opt = 0;
 102 static gboolean default_opt_set = FALSE;
 103
 104 guint32 mono_jit_tls_id = -1;
 105 MonoTraceSpec *mono_jit_trace_calls = NULL;
 106 gboolean mono_break_on_exc = FALSE;
 107 #ifndef DISABLE_AOT
 108 gboolean mono_compile_aot = FALSE;
 109 #endif
 110 gboolean mono_use_security_manager = FALSE;
 111
 112 static int mini_verbose = 0;
 113
 114 #define mono_jit_lock() EnterCriticalSection (&jit_mutex)
 115 #define mono_jit_unlock() LeaveCriticalSection (&jit_mutex)
 116 static CRITICAL_SECTION jit_mutex;
 117
 118 static GHashTable *class_init_hash_addr = NULL;
 119
 120 static MonoCodeManager *global_codeman = NULL;
 121
 122 static GHashTable *jit_icall_name_hash = NULL;
 123
 124 static MonoDebugOptions debug_options;
 125
 126 /*
 127  * Address of the trampoline code.  This is used by the debugger to check
 128  * whether a method is a trampoline.
 129  */
 130 guint8* mono_trampoline_code [MONO_TRAMPOLINE_NUM];
 131
 132 gboolean
 133 mono_running_on_valgrind (void)
 134 {
 135 #ifdef HAVE_VALGRIND_MEMCHECK_H
 136                 if (RUNNING_ON_VALGRIND)
 137                         return TRUE;
 138                 else
 139                         return FALSE;
 140 #else
 141                 return FALSE;
 142 #endif
 143 }
 144
 145 /*
 146  * mono_create_ftnptr:
 147  *
 148  *   Given a function address, create a function descriptor for it.
 149  * This is only needed on IA64.
 150  */
 151 gpointer
 152 mono_create_ftnptr (MonoDomain *domain, gpointer addr)
 153 {
 154 #ifdef __ia64__
 155         gpointer *desc;
 156
 157         mono_domain_lock (domain);
 158         desc = mono_code_manager_reserve (domain->code_mp, 2 * sizeof (gpointer));
 159         mono_domain_unlock (domain);
 160
 161         desc [0] = addr;
 162         desc [1] = NULL;
 163
 164         return desc;
 165 #else
 166         return addr;
 167 #endif
 168 }
 169
 170 typedef struct {
 171         void *ip;
 172         MonoMethod *method;
 173 } FindTrampUserData;
 174
 175 static void
 176 find_tramp (gpointer key, gpointer value, gpointer user_data)
 177 {
 178         FindTrampUserData *ud = (FindTrampUserData*)user_data;
 179
 180         if (value == ud->ip)
 181                 ud->method = (MonoMethod*)key;
 182 }
 183
 184 /* debug function */
 185 G_GNUC_UNUSED static char*
 186 get_method_from_ip (void *ip)
 187 {
 188         MonoJitInfo *ji;
 189         char *method;
 190         char *res;
 191         MonoDomain *domain = mono_domain_get ();
 192         MonoDebugSourceLocation *location;
 193         FindTrampUserData user_data;
 194
 195         ji = mono_jit_info_table_find (domain, ip);
 196         if (!ji) {
 197                 user_data.ip = ip;
 198                 user_data.method = NULL;
 199                 mono_domain_lock (domain);
 200                 g_hash_table_foreach (domain->jit_trampoline_hash, find_tramp, &user_data);
 201                 mono_domain_unlock (domain);
 202                 if (user_data.method) {
 203                         char *mname = mono_method_full_name (user_data.method, TRUE);
 204                         res = g_strdup_printf ("<%p - JIT trampoline for %s>", ip, mname);
 205                         g_free (mname);
 206                         return res;
 207                 }
 208                 else
 209                         return NULL;
 210         }
 211         method = mono_method_full_name (ji->method, TRUE);
 212         /* FIXME: unused ? */
 213         location = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
 214
 215         res = g_strdup_printf (" %s + 0x%x (%p %p) [%p - %s]", method, (int)((char*)ip - (char*)ji->code_start), ji->code_start, (char*)ji->code_start + ji->code_size, domain, domain->friendly_name);
 216
 217         mono_debug_free_source_location (location);
 218         g_free (method);
 219
 220         return res;
 221 }
 222
 223 G_GNUC_UNUSED char *
 224 mono_pmip (void *ip)
 225 {
 226         return get_method_from_ip (ip);
 227 }
 228
 229 /* debug function */
 230 void
 231 mono_print_method_from_ip (void *ip)
 232 {
 233         MonoJitInfo *ji;
 234         char *method;
 235         MonoDebugSourceLocation *source;
 236         MonoDomain *domain = mono_domain_get ();
 237         FindTrampUserData user_data;
 238
 239         ji = mono_jit_info_table_find (domain, ip);
 240         if (!ji) {
 241                 user_data.ip = ip;
 242                 user_data.method = NULL;
 243                 mono_domain_lock (domain);
 244                 g_hash_table_foreach (domain->jit_trampoline_hash, find_tramp, &user_data);
 245                 mono_domain_unlock (domain);
 246                 if (user_data.method) {
 247                         char *mname = mono_method_full_name (user_data.method, TRUE);
 248                         printf ("IP %p is a JIT trampoline for %s\n", ip, mname);
 249                         g_free (mname);
 250                 }
 251                 else
 252                         g_print ("No method at %p\n", ip);
 253                 return;
 254         }
 255         method = mono_method_full_name (ji->method, TRUE);
 256         source = mono_debug_lookup_source_location (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), domain);
 257
 258         g_print ("IP %p at offset 0x%x of method %s (%p %p)[domain %p - %s]\n", ip, (int)((char*)ip - (char*)ji->code_start), method, ji->code_start, (char*)ji->code_start + ji->code_size, domain, domain->friendly_name);
 259
 260         if (source)
 261                 g_print ("%s:%d\n", source->source_file, source->row);
 262
 263         mono_debug_free_source_location (source);
 264         g_free (method);
 265 }
 266
 267 /*
 268  * mono_method_same_domain:
 269  *
 270  * Determine whenever two compiled methods are in the same domain, thus
 271  * the address of the callee can be embedded in the caller.
 272  */
 273 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
 274 {
 275         if (!caller || !callee)
 276                 return FALSE;
 277
 278         /*
 279          * If the call was made from domain-neutral to domain-specific
 280          * code, we can't patch the call site.
 281          */
 282         if (caller->domain_neutral && !callee->domain_neutral)
 283                 return FALSE;
 284
 285         if ((caller->method->klass == mono_defaults.appdomain_class) &&
 286                 (strstr (caller->method->name, "InvokeInDomain"))) {
 287                  /* The InvokeInDomain methods change the current appdomain */
 288                 return FALSE;
 289         }
 290
 291         return TRUE;
 292 }
 293
 294 /*
 295  * mono_global_codeman_reserve:
 296  *
 297  *  Allocate code memory from the global code manager.
 298  */
 299 void *mono_global_codeman_reserve (int size)
 300 {
 301         void *ptr;
 302
 303         if (!global_codeman) {
 304                 /* This can happen during startup */
 305                 global_codeman = mono_code_manager_new ();
 306                 return mono_code_manager_reserve (global_codeman, size);
 307         }
 308         else {
 309                 mono_jit_lock ();
 310                 ptr = mono_code_manager_reserve (global_codeman, size);
 311                 mono_jit_unlock ();
 312                 return ptr;
 313         }
 314 }
 315
 316 MonoJumpInfoToken *
 317 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
 318 {
 319         MonoJumpInfoToken *res = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
 320         res->image = image;
 321         res->token = token;
 322
 323         return res;
 324 }
 325
 326 #define MONO_INIT_VARINFO(vi,id) do { \
 327         (vi)->range.first_use.pos.bid = 0xffff; \
 328         (vi)->reg = -1; \
 329         (vi)->idx = (id); \
 330 } while (0)
 331
 332 //#define UNVERIFIED do { G_BREAKPOINT (); goto unverified; } while (0)
 333 #define UNVERIFIED do { goto unverified; } while (0)
 334
 335 /*
 336  * Basic blocks have two numeric identifiers:
 337  * dfn: Depth First Number
 338  * block_num: unique ID assigned at bblock creation
 339  */
 340 #define NEW_BBLOCK(cfg) (mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoBasicBlock)))
 341 #define ADD_BBLOCK(cfg,bbhash,b) do {   \
 342                 g_hash_table_insert (bbhash, (b)->cil_code, (b));       \
 343                 (b)->block_num = cfg->num_bblocks++;    \
 344                 (b)->real_offset = real_offset; \
 345         } while (0)
 346
 347 #define GET_BBLOCK(cfg,bbhash,tblock,ip) do {   \
 348                 (tblock) = g_hash_table_lookup (bbhash, (ip));  \
 349                 if (!(tblock)) {        \
 350                         if ((ip) >= end || (ip) < header->code) UNVERIFIED; \
 351                         (tblock) = NEW_BBLOCK (cfg);    \
 352                         (tblock)->cil_code = (ip);      \
 353                         ADD_BBLOCK (cfg, (bbhash), (tblock));   \
 354                 } \
 355         } while (0)
 356
 357 #define CHECK_BBLOCK(target,ip,tblock) do {     \
 358                 if ((target) < (ip) && !(tblock)->code) {       \
 359                         bb_recheck = g_list_prepend (bb_recheck, (tblock));     \
 360                         if (cfg->verbose_level > 2) g_print ("queued block %d for check at IL%04x from IL%04x\n", (tblock)->block_num, (int)((target) - header->code), (int)((ip) - header->code));     \
 361                 }       \
 362         } while (0)
 363
 364 #define NEW_ICONST(cfg,dest,val) do {   \
 365                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 366                 (dest)->opcode = OP_ICONST;     \
 367                 (dest)->inst_c0 = (val);        \
 368                 (dest)->type = STACK_I4;        \
 369         } while (0)
 370
 371 #define NEW_PCONST(cfg,dest,val) do {   \
 372                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 373                 (dest)->opcode = OP_PCONST;     \
 374                 (dest)->inst_p0 = (val);        \
 375                 (dest)->type = STACK_PTR;       \
 376         } while (0)
 377
 378
 379 #ifdef MONO_ARCH_NEED_GOT_VAR
 380
 381 #define NEW_PATCH_INFO(cfg,dest,el1,el2) do {   \
 382                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 383                 (dest)->opcode = OP_PATCH_INFO; \
 384                 (dest)->inst_left = (gpointer)(el1);    \
 385                 (dest)->inst_right = (gpointer)(el2);   \
 386         } while (0)
 387
 388 #define NEW_AOTCONST(cfg,dest,patch_type,cons) do {                     \
 389                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst)); \
 390                 (dest)->opcode = cfg->compile_aot ? OP_GOT_ENTRY : OP_PCONST; \
 391                 if (cfg->compile_aot) {                                 \
 392                         MonoInst *group, *got_var, *got_loc;            \
 393                         got_loc = mono_get_got_var (cfg);               \
 394                         NEW_TEMPLOAD ((cfg), got_var, got_loc->inst_c0); \
 395                         NEW_PATCH_INFO ((cfg), group, cons, patch_type); \
 396                         (dest)->inst_p0 = got_var;                      \
 397                         (dest)->inst_p1 = group;                        \
 398                 } else {                                                \
 399                         (dest)->inst_p0 = (cons);                       \
 400                         (dest)->inst_i1 = (gpointer)(patch_type);       \
 401                 }                                                       \
 402                 (dest)->type = STACK_PTR;                               \
 403         } while (0)
 404
 405 #define NEW_AOTCONST_TOKEN(cfg,dest,patch_type,image,token,stack_type,stack_class) do { \
 406                 MonoInst *group, *got_var, *got_loc;                    \
 407                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst)); \
 408                 (dest)->opcode = OP_GOT_ENTRY;                          \
 409                 got_loc = mono_get_got_var (cfg);                       \
 410                 NEW_TEMPLOAD ((cfg), got_var, got_loc->inst_c0);        \
 411                 NEW_PATCH_INFO ((cfg), group, NULL, patch_type);        \
 412                 group->inst_p0 = mono_jump_info_token_new ((cfg)->mempool, (image), (token)); \
 413                 (dest)->inst_p0 = got_var;                              \
 414                 (dest)->inst_p1 = group;                                \
 415                 (dest)->type = (stack_type);                    \
 416         (dest)->klass = (stack_class);          \
 417         } while (0)
 418
 419 #else
 420
 421 #define NEW_AOTCONST(cfg,dest,patch_type,cons) do {    \
 422                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 423                 (dest)->opcode = cfg->compile_aot ? OP_AOTCONST : OP_PCONST;    \
 424                 (dest)->inst_p0 = (cons);       \
 425                 (dest)->inst_i1 = (gpointer)(patch_type); \
 426                 (dest)->type = STACK_PTR;       \
 427     } while (0)
 428
 429 #define NEW_AOTCONST_TOKEN(cfg,dest,patch_type,image,token,stack_type,stack_class) do { \
 430                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 431                 (dest)->opcode = OP_AOTCONST;   \
 432                 (dest)->inst_p0 = mono_jump_info_token_new ((cfg)->mempool, (image), (token));  \
 433                 (dest)->inst_p1 = (gpointer)(patch_type); \
 434                 (dest)->type = (stack_type);    \
 435         (dest)->klass = (stack_class);          \
 436     } while (0)
 437
 438 #endif
 439
 440 #define NEW_CLASSCONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_CLASS, (val))
 441
 442 #define NEW_IMAGECONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_IMAGE, (val))
 443
 444 #define NEW_FIELDCONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_FIELD, (val))
 445
 446 #define NEW_METHODCONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_METHODCONST, (val))
 447
 448 #define NEW_VTABLECONST(cfg,dest,vtable) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_VTABLE, cfg->compile_aot ? (gpointer)((vtable)->klass) : (vtable))
 449
 450 #define NEW_SFLDACONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_SFLDA, (val))
 451
 452 #define NEW_LDSTRCONST(cfg,dest,image,token) NEW_AOTCONST_TOKEN ((cfg), (dest), MONO_PATCH_INFO_LDSTR, (image), (token), STACK_OBJ, mono_defaults.string_class)
 453
 454 #define NEW_TYPE_FROM_HANDLE_CONST(cfg,dest,image,token) NEW_AOTCONST_TOKEN ((cfg), (dest), MONO_PATCH_INFO_TYPE_FROM_HANDLE, (image), (token), STACK_OBJ, mono_defaults.monotype_class)
 455
 456 #define NEW_LDTOKENCONST(cfg,dest,image,token) NEW_AOTCONST_TOKEN ((cfg), (dest), MONO_PATCH_INFO_LDTOKEN, (image), (token), STACK_PTR, NULL)
 457
 458 #define NEW_DECLSECCONST(cfg,dest,image,entry) do { \
 459                 if (cfg->compile_aot) { \
 460                         NEW_AOTCONST_TOKEN (cfg, dest, MONO_PATCH_INFO_DECLSEC, image, (entry).index, STACK_OBJ, NULL); \
 461                 } else { \
 462                         NEW_PCONST (cfg, args [0], (entry).blob); \
 463                 } \
 464         } while (0)
 465
 466 #define NEW_DOMAINCONST(cfg,dest) do { \
 467                 if (cfg->opt & MONO_OPT_SHARED) { \
 468                         /* avoid depending on undefined C behavior in sequence points */ \
 469                         MonoInst* __domain_var = mono_get_domainvar (cfg); \
 470                         NEW_TEMPLOAD (cfg, dest, __domain_var->inst_c0); \
 471                 } else { \
 472                         NEW_PCONST (cfg, dest, (cfg)->domain); \
 473                 } \
 474         } while (0)
 475
 476 #define GET_VARINFO_INST(cfg,num) ((cfg)->varinfo [(num)]->inst)
 477
 478 #define NEW_ARGLOAD(cfg,dest,num) do {  \
 479                 if (arg_array [(num)]->opcode == OP_ICONST) (dest) = arg_array [(num)]; else { \
 480                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 481                 (dest)->ssa_op = MONO_SSA_LOAD; \
 482                 (dest)->inst_i0 = arg_array [(num)];    \
 483                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 484                 type_to_eval_stack_type (param_types [(num)], (dest));  \
 485                 (dest)->klass = (dest)->inst_i0->klass; \
 486         }} while (0)
 487
 488 #define NEW_LOCLOAD(cfg,dest,num) do {  \
 489                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 490                 (dest)->ssa_op = MONO_SSA_LOAD; \
 491                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 492                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 493                 type_to_eval_stack_type (header->locals [(num)], (dest));       \
 494                 (dest)->klass = (dest)->inst_i0->klass; \
 495         } while (0)
 496
 497 #define NEW_LOCLOADA(cfg,dest,num) do { \
 498                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 499                 (dest)->ssa_op = MONO_SSA_ADDRESS_TAKEN;        \
 500                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 501                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 502                 (dest)->opcode = OP_LDADDR;     \
 503                 (dest)->type = STACK_MP;        \
 504                 (dest)->klass = (dest)->inst_i0->klass; \
 505         if (!MONO_TYPE_ISSTRUCT (header->locals [(num)])) \
 506            (cfg)->disable_ssa = TRUE; \
 507         } while (0)
 508
 509 #define NEW_RETLOADA(cfg,dest) do {     \
 510                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 511                 (dest)->ssa_op = MONO_SSA_ADDRESS_TAKEN;        \
 512                 (dest)->inst_i0 = (cfg)->ret;   \
 513                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 514                 (dest)->opcode = cfg->ret_var_is_local ? OP_LDADDR : CEE_LDIND_I;       \
 515                 (dest)->type = STACK_MP;        \
 516                 (dest)->klass = (dest)->inst_i0->klass; \
 517                 (cfg)->disable_ssa = TRUE; \
 518         } while (0)
 519
 520 #define NEW_ARGLOADA(cfg,dest,num) do { \
 521                 if (arg_array [(num)]->opcode == OP_ICONST) goto inline_failure; \
 522                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 523                 (dest)->ssa_op = MONO_SSA_ADDRESS_TAKEN;        \
 524                 (dest)->inst_i0 = arg_array [(num)];    \
 525                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 526                 (dest)->opcode = OP_LDADDR;     \
 527                 (dest)->type = STACK_MP;        \
 528                 (dest)->klass = (dest)->inst_i0->klass; \
 529                 (cfg)->disable_ssa = TRUE; \
 530         } while (0)
 531
 532 #define NEW_TEMPLOAD(cfg,dest,num) do { \
 533                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 534                 (dest)->ssa_op = MONO_SSA_LOAD; \
 535                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 536                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 537                 type_to_eval_stack_type ((dest)->inst_i0->inst_vtype, (dest));  \
 538                 (dest)->klass = (dest)->inst_i0->klass; \
 539         } while (0)
 540
 541 #define NEW_TEMPLOADA(cfg,dest,num) do {        \
 542                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 543                 (dest)->ssa_op = MONO_SSA_ADDRESS_TAKEN;        \
 544                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 545                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 546                 (dest)->opcode = OP_LDADDR;     \
 547                 (dest)->type = STACK_MP;        \
 548                 (dest)->klass = (dest)->inst_i0->klass; \
 549         if (!MONO_TYPE_ISSTRUCT (cfg->varinfo [(num)]->inst_vtype)) \
 550            (cfg)->disable_ssa = TRUE; \
 551         } while (0)
 552
 553
 554 #define NEW_INDLOAD(cfg,dest,addr,vtype) do {   \
 555                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 556                 (dest)->inst_left = addr;       \
 557                 (dest)->opcode = mono_type_to_ldind (vtype);    \
 558                 type_to_eval_stack_type (vtype, (dest));        \
 559                 /* FIXME: (dest)->klass = (dest)->inst_i0->klass;*/     \
 560         } while (0)
 561
 562 #define NEW_INDSTORE(cfg,dest,addr,value,vtype) do {    \
 563                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 564                 (dest)->inst_i0 = addr; \
 565                 (dest)->opcode = mono_type_to_stind (vtype);    \
 566                 (dest)->inst_i1 = (value);      \
 567                 /* FIXME: (dest)->klass = (dest)->inst_i0->klass;*/     \
 568         } while (0)
 569
 570 #define NEW_TEMPSTORE(cfg,dest,num,inst) do {   \
 571                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 572                 (dest)->ssa_op = MONO_SSA_STORE;        \
 573                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 574                 (dest)->opcode = mono_type_to_stind ((dest)->inst_i0->inst_vtype);      \
 575                 (dest)->inst_i1 = (inst);       \
 576                 (dest)->klass = (dest)->inst_i0->klass; \
 577         } while (0)
 578
 579 #define NEW_LOCSTORE(cfg,dest,num,inst) do {    \
 580                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 581                 (dest)->opcode = mono_type_to_stind (header->locals [(num)]);   \
 582                 (dest)->ssa_op = MONO_SSA_STORE;        \
 583                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 584                 (dest)->inst_i1 = (inst);       \
 585                 (dest)->klass = (dest)->inst_i0->klass; \
 586         } while (0)
 587
 588 #define NEW_ARGSTORE(cfg,dest,num,inst) do {    \
 589                 if (arg_array [(num)]->opcode == OP_ICONST) goto inline_failure; \
 590                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 591                 (dest)->opcode = mono_type_to_stind (param_types [(num)]);      \
 592                 (dest)->ssa_op = MONO_SSA_STORE;        \
 593                 (dest)->inst_i0 = arg_array [(num)];    \
 594                 (dest)->inst_i1 = (inst);       \
 595                 (dest)->klass = (dest)->inst_i0->klass; \
 596         } while (0)
 597
 598 #define NEW_DUMMY_USE(cfg,dest,load) do { \
 599                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 600                 (dest)->opcode = OP_DUMMY_USE; \
 601                 (dest)->inst_left = (load); \
 602     } while (0)
 603
 604 #define NEW_DUMMY_STORE(cfg,dest,num) do { \
 605                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 606                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 607                 (dest)->opcode = OP_DUMMY_STORE; \
 608                 (dest)->klass = (dest)->inst_i0->klass; \
 609         } while (0)
 610
 611 #define ADD_BINOP(op) do {      \
 612                 MONO_INST_NEW (cfg, ins, (op)); \
 613                 ins->cil_code = ip;     \
 614                 sp -= 2;        \
 615                 ins->inst_i0 = sp [0];  \
 616                 ins->inst_i1 = sp [1];  \
 617                 *sp++ = ins;    \
 618                 type_from_op (ins);     \
 619                 CHECK_TYPE (ins);       \
 620         } while (0)
 621
 622 #define ADD_UNOP(op) do {       \
 623                 MONO_INST_NEW (cfg, ins, (op)); \
 624                 ins->cil_code = ip;     \
 625                 sp--;   \
 626                 ins->inst_i0 = sp [0];  \
 627                 *sp++ = ins;    \
 628                 type_from_op (ins);     \
 629                 CHECK_TYPE (ins);       \
 630         } while (0)
 631
 632 #define ADD_BINCOND(next_block) do {    \
 633                 MonoInst *cmp;  \
 634                 sp -= 2;                \
 635                 MONO_INST_NEW(cfg, cmp, OP_COMPARE);    \
 636                 cmp->inst_i0 = sp [0];  \
 637                 cmp->inst_i1 = sp [1];  \
 638                 cmp->cil_code = ins->cil_code;  \
 639                 type_from_op (cmp);     \
 640                 CHECK_TYPE (cmp);       \
 641                 ins->inst_i0 = cmp;     \
 642                 MONO_ADD_INS (bblock, ins);     \
 643                 ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2);      \
 644                 GET_BBLOCK (cfg, bbhash, tblock, target);               \
 645                 link_bblock (cfg, bblock, tblock);      \
 646                 ins->inst_true_bb = tblock;     \
 647                 CHECK_BBLOCK (target, ip, tblock);      \
 648                 if ((next_block)) {     \
 649                         link_bblock (cfg, bblock, (next_block));        \
 650                         ins->inst_false_bb = (next_block);      \
 651                         start_new_bblock = 1;   \
 652                 } else {        \
 653                         GET_BBLOCK (cfg, bbhash, tblock, ip);           \
 654                         link_bblock (cfg, bblock, tblock);      \
 655                         ins->inst_false_bb = tblock;    \
 656                         start_new_bblock = 2;   \
 657                 }       \
 658         } while (0)
 659
 660 /* FIXME: handle float, long ... */
 661 #define ADD_UNCOND(istrue) do { \
 662                 MonoInst *cmp;  \
 663                 sp--;           \
 664                 MONO_INST_NEW(cfg, cmp, OP_COMPARE);    \
 665                 cmp->inst_i0 = sp [0];  \
 666                 switch (cmp->inst_i0->type) { \
 667                 case STACK_I8: \
 668                         cmp->inst_i1 = zero_int64; break; \
 669                 case STACK_R8: \
 670                         cmp->inst_i1 = zero_r8; break; \
 671                 case STACK_PTR: \
 672                 case STACK_MP: \
 673                         cmp->inst_i1 = zero_ptr; break; \
 674                 case STACK_OBJ: \
 675                         cmp->inst_i1 = zero_obj; break; \
 676                 default: \
 677                         cmp->inst_i1 = zero_int32;  \
 678                 }  \
 679                 cmp->cil_code = ins->cil_code;  \
 680                 type_from_op (cmp);     \
 681                 CHECK_TYPE (cmp);       \
 682                 ins->inst_i0 = cmp;     \
 683                 ins->opcode = (istrue)? CEE_BNE_UN: CEE_BEQ;    \
 684                 MONO_ADD_INS (bblock, ins);     \
 685                 ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2);      \
 686                 GET_BBLOCK (cfg, bbhash, tblock, target);               \
 687                 link_bblock (cfg, bblock, tblock);      \
 688                 ins->inst_true_bb = tblock;     \
 689                 CHECK_BBLOCK (target, ip, tblock);      \
 690                 GET_BBLOCK (cfg, bbhash, tblock, ip);           \
 691                 link_bblock (cfg, bblock, tblock);      \
 692                 ins->inst_false_bb = tblock;    \
 693                 start_new_bblock = 2;   \
 694         } while (0)
 695
 696 #define NEW_LDELEMA(cfg,dest,sp,k) do { \
 697                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 698                 (dest)->opcode = CEE_LDELEMA;   \
 699                 (dest)->inst_left = (sp) [0];   \
 700                 (dest)->inst_right = (sp) [1];  \
 701                 (dest)->type = STACK_MP;        \
 702                 (dest)->klass = (k);    \
 703                 (cfg)->flags |= MONO_CFG_HAS_LDELEMA; \
 704         } while (0)
 705
 706 #define NEW_GROUP(cfg,dest,el1,el2) do {        \
 707                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 708                 (dest)->opcode = OP_GROUP;      \
 709                 (dest)->inst_left = (el1);      \
 710                 (dest)->inst_right = (el2);     \
 711         } while (0)
 712
 713 #if 0
 714 static gint
 715 compare_bblock (gconstpointer a, gconstpointer b)
 716 {
 717         const MonoBasicBlock *b1 = a;
 718         const MonoBasicBlock *b2 = b;
 719
 720         return b2->cil_code - b1->cil_code;
 721 }
 722 #endif
 723
 724 /* *
 725  * link_bblock: Links two basic blocks
 726  *
 727  * links two basic blocks in the control flow graph, the 'from'
 728  * argument is the starting block and the 'to' argument is the block
 729  * the control flow ends to after 'from'.
 730  */
 731 static void
 732 link_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
 733 {
 734         MonoBasicBlock **newa;
 735         int i, found;
 736
 737 #if 0
 738         if (from->cil_code) {
 739                 if (to->cil_code)
 740                         g_print ("edge from IL%04x to IL_%04x\n", from->cil_code - cfg->cil_code, to->cil_code - cfg->cil_code);
 741                 else
 742                         g_print ("edge from IL%04x to exit\n", from->cil_code - cfg->cil_code);
 743         } else {
 744                 if (to->cil_code)
 745                         g_print ("edge from entry to IL_%04x\n", to->cil_code - cfg->cil_code);
 746                 else
 747                         g_print ("edge from entry to exit\n");
 748         }
 749 #endif
 750         found = FALSE;
 751         for (i = 0; i < from->out_count; ++i) {
 752                 if (to == from->out_bb [i]) {
 753                         found = TRUE;
 754                         break;
 755                 }
 756         }
 757         if (!found) {
 758                 newa = mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (from->out_count + 1));
 759                 for (i = 0; i < from->out_count; ++i) {
 760                         newa [i] = from->out_bb [i];
 761                 }
 762                 newa [i] = to;
 763                 from->out_count++;
 764                 from->out_bb = newa;
 765         }
 766
 767         found = FALSE;
 768         for (i = 0; i < to->in_count; ++i) {
 769                 if (from == to->in_bb [i]) {
 770                         found = TRUE;
 771                         break;
 772                 }
 773         }
 774         if (!found) {
 775                 newa = mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (to->in_count + 1));
 776                 for (i = 0; i < to->in_count; ++i) {
 777                         newa [i] = to->in_bb [i];
 778                 }
 779                 newa [i] = from;
 780                 to->in_count++;
 781                 to->in_bb = newa;
 782         }
 783 }
 784
 785 /**
 786  * mono_unlink_bblock:
 787  *
 788  *   Unlink two basic blocks.
 789  */
 790 static void
 791 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
 792 {
 793         int i, pos;
 794         gboolean found;
 795
 796         found = FALSE;
 797         for (i = 0; i < from->out_count; ++i) {
 798                 if (to == from->out_bb [i]) {
 799                         found = TRUE;
 800                         break;
 801                 }
 802         }
 803         if (found) {
 804                 pos = 0;
 805                 for (i = 0; i < from->out_count; ++i) {
 806                         if (from->out_bb [i] != to)
 807                                 from->out_bb [pos ++] = from->out_bb [i];
 808                 }
 809                 g_assert (pos == from->out_count - 1);
 810                 from->out_count--;
 811         }
 812
 813         found = FALSE;
 814         for (i = 0; i < to->in_count; ++i) {
 815                 if (from == to->in_bb [i]) {
 816                         found = TRUE;
 817                         break;
 818                 }
 819         }
 820         if (found) {
 821                 pos = 0;
 822                 for (i = 0; i < to->in_count; ++i) {
 823                         if (to->in_bb [i] != from)
 824                                 to->in_bb [pos ++] = to->in_bb [i];
 825                 }
 826                 g_assert (pos == to->in_count - 1);
 827                 to->in_count--;
 828         }
 829 }
 830
 831 /**
 832  * mono_find_block_region:
 833  *
 834  *   We mark each basic block with a region ID. We use that to avoid BB
 835  *   optimizations when blocks are in different regions.
 836  *
 837  * Returns:
 838  *   A region token that encodes where this region is, and information
 839  *   about the clause owner for this block.
 840  *
 841  *   The region encodes the try/catch/filter clause that owns this block
 842  *   as well as the type.  -1 is a special value that represents a block
 843  *   that is in none of try/catch/filter.
 844  */
 845 static int
 846 mono_find_block_region (MonoCompile *cfg, int offset)
 847 {
 848         MonoMethod *method = cfg->method;
 849         MonoMethodHeader *header = mono_method_get_header (method);
 850         MonoExceptionClause *clause;
 851         int i;
 852
 853         /* first search for handlers and filters */
 854         for (i = 0; i < header->num_clauses; ++i) {
 855                 clause = &header->clauses [i];
 856                 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
 857                     (offset < (clause->handler_offset)))
 858                         return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
 859
 860                 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
 861                         if (clause->flags & MONO_EXCEPTION_CLAUSE_FINALLY)
 862                                 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
 863                         else
 864                                 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
 865                 }
 866         }
 867
 868         /* search the try blocks */
 869         for (i = 0; i < header->num_clauses; ++i) {
 870                 clause = &header->clauses [i];
 871                 if (MONO_OFFSET_IN_CLAUSE (clause, offset))
 872                         return ((i + 1) << 8) | clause->flags;
 873         }
 874
 875         return -1;
 876 }
 877
 878 static GList*
 879 mono_find_final_block (MonoCompile *cfg, unsigned char *ip, unsigned char *target, int type)
 880 {
 881         MonoMethod *method = cfg->method;
 882         MonoMethodHeader *header = mono_method_get_header (method);
 883         MonoExceptionClause *clause;
 884         MonoBasicBlock *handler;
 885         int i;
 886         GList *res = NULL;
 887
 888         for (i = 0; i < header->num_clauses; ++i) {
 889                 clause = &header->clauses [i];
 890                 if (MONO_OFFSET_IN_CLAUSE (clause, (ip - header->code)) &&
 891                     (!MONO_OFFSET_IN_CLAUSE (clause, (target - header->code)))) {
 892                         if (clause->flags == type) {
 893                                 handler = g_hash_table_lookup (cfg->bb_hash, header->code + clause->handler_offset);
 894                                 g_assert (handler);
 895                                 res = g_list_append (res, handler);
 896                         }
 897                 }
 898         }
 899         return res;
 900 }
 901
 902 MonoInst *
 903 mono_find_spvar_for_region (MonoCompile *cfg, int region)
 904 {
 905         return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
 906 }
 907
 908 static void
 909 mono_create_spvar_for_region (MonoCompile *cfg, int region)
 910 {
 911         MonoInst *var;
 912
 913         var = g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
 914         if (var)
 915                 return;
 916
 917         var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
 918         /* prevent it from being register allocated */
 919         var->flags |= MONO_INST_INDIRECT;
 920
 921         g_hash_table_insert (cfg->spvars, GINT_TO_POINTER (region), var);
 922 }
 923
 924 static MonoInst *
 925 mono_find_exvar_for_offset (MonoCompile *cfg, int offset)
 926 {
 927         return g_hash_table_lookup (cfg->exvars, GINT_TO_POINTER (offset));
 928 }
 929
 930 static MonoInst*
 931 mono_create_exvar_for_offset (MonoCompile *cfg, int offset)
 932 {
 933         MonoInst *var;
 934
 935         var = g_hash_table_lookup (cfg->exvars, GINT_TO_POINTER (offset));
 936         if (var)
 937                 return var;
 938
 939         var = mono_compile_create_var (cfg, &mono_defaults.object_class->byval_arg, OP_LOCAL);
 940         /* prevent it from being register allocated */
 941         var->flags |= MONO_INST_INDIRECT;
 942
 943         g_hash_table_insert (cfg->exvars, GINT_TO_POINTER (offset), var);
 944
 945         return var;
 946 }
 947
 948 static void
 949 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
 950 {
 951         int i;
 952
 953         array [*dfn] = start;
 954         /*g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num);*/
 955         for (i = 0; i < start->out_count; ++i) {
 956                 if (start->out_bb [i]->dfn)
 957                         continue;
 958                 (*dfn)++;
 959                 start->out_bb [i]->dfn = *dfn;
 960                 start->out_bb [i]->df_parent = start;
 961                 array [*dfn] = start->out_bb [i];
 962                 df_visit (start->out_bb [i], dfn, array);
 963         }
 964 }
 965
 966 typedef struct {
 967         const guchar *code;
 968         MonoBasicBlock *best;
 969 } PrevStruct;
 970
 971 static void
 972 previous_foreach (gconstpointer key, gpointer val, gpointer data)
 973 {
 974         PrevStruct *p = data;
 975         MonoBasicBlock *bb = val;
 976         //printf ("FIDPREV %d %p  %p %p %p %p %d %d %d\n", bb->block_num, p->code, bb, p->best, bb->cil_code, p->best->cil_code,
 977         //bb->method == p->best->method, bb->cil_code < p->code, bb->cil_code > p->best->cil_code);
 978
 979         if (bb->cil_code && bb->cil_code < p->code && bb->cil_code > p->best->cil_code)
 980                 p->best = bb;
 981 }
 982
 983 static MonoBasicBlock*
 984 find_previous (GHashTable *bb_hash, MonoBasicBlock *start, const guchar *code) {
 985         PrevStruct p;
 986
 987         p.code = code;
 988         p.best = start;
 989
 990         g_hash_table_foreach (bb_hash, (GHFunc)previous_foreach, &p);
 991         return p.best;
 992 }
 993
 994 static void
 995 split_bblock (MonoCompile *cfg, MonoBasicBlock *first, MonoBasicBlock *second) {
 996         int i, j;
 997         MonoInst *inst;
 998         MonoBasicBlock *bb;
 999
1000         if (second->code)
1001                 return;
1002
1003         /*
1004          * FIXME: take into account all the details:
1005          * second may have been the target of more than one bblock
1006          */
1007         second->out_count = first->out_count;
1008         second->out_bb = first->out_bb;
1009
1010         for (i = 0; i < first->out_count; ++i) {
1011                 bb = first->out_bb [i];
1012                 for (j = 0; j < bb->in_count; ++j) {
1013                         if (bb->in_bb [j] == first)
1014                                 bb->in_bb [j] = second;
1015                 }
1016         }
1017
1018         first->out_count = 0;
1019         first->out_bb = NULL;
1020         link_bblock (cfg, first, second);
1021
1022         second->last_ins = first->last_ins;
1023
1024         /*g_print ("start search at %p for %p\n", first->cil_code, second->cil_code);*/
1025         for (inst = first->code; inst && inst->next; inst = inst->next) {
1026                 /*char *code = mono_disasm_code_one (NULL, cfg->method, inst->next->cil_code, NULL);
1027                 g_print ("found %p: %s", inst->next->cil_code, code);
1028                 g_free (code);*/
1029                 if (inst->cil_code < second->cil_code && inst->next->cil_code >= second->cil_code) {
1030                         second->code = inst->next;
1031                         inst->next = NULL;
1032                         first->last_ins = inst;
1033                         second->next_bb = first->next_bb;
1034                         first->next_bb = second;
1035                         return;
1036                 }
1037         }
1038         if (!second->code) {
1039                 g_warning ("bblock split failed in %s::%s\n", cfg->method->klass->name, cfg->method->name);
1040                 //G_BREAKPOINT ();
1041         }
1042 }
1043
1044 static guint32
1045 reverse_branch_op (guint32 opcode)
1046 {
1047         static const int reverse_map [] = {
1048                 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
1049                 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
1050         };
1051         static const int reverse_fmap [] = {
1052                 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
1053                 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
1054         };
1055         static const int reverse_lmap [] = {
1056                 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
1057                 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
1058         };
1059         static const int reverse_imap [] = {
1060                 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
1061                 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
1062         };
1063
1064         if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
1065                 opcode = reverse_map [opcode - CEE_BEQ];
1066         } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
1067                 opcode = reverse_fmap [opcode - OP_FBEQ];
1068         } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
1069                 opcode = reverse_lmap [opcode - OP_LBEQ];
1070         } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
1071                 opcode = reverse_imap [opcode - OP_IBEQ];
1072         } else
1073                 g_assert_not_reached ();
1074
1075         return opcode;
1076 }
1077
1078 /*
1079  * Returns the type used in the eval stack when @type is loaded.
1080  * FIXME: return a MonoType/MonoClass for the byref and VALUETYPE cases.
1081  */
1082 static void
1083 type_to_eval_stack_type (MonoType *type, MonoInst *inst)
1084 {
1085         MonoClass *klass;
1086
1087         inst->klass = klass = mono_class_from_mono_type (type);
1088         if (type->byref) {
1089                 inst->type = STACK_MP;
1090                 return;
1091         }
1092
1093 handle_enum:
1094         switch (type->type) {
1095         case MONO_TYPE_VOID:
1096                 inst->type = STACK_INV;
1097                 return;
1098         case MONO_TYPE_I1:
1099         case MONO_TYPE_U1:
1100         case MONO_TYPE_BOOLEAN:
1101         case MONO_TYPE_I2:
1102         case MONO_TYPE_U2:
1103         case MONO_TYPE_CHAR:
1104         case MONO_TYPE_I4:
1105         case MONO_TYPE_U4:
1106                 inst->type = STACK_I4;
1107                 return;
1108         case MONO_TYPE_I:
1109         case MONO_TYPE_U:
1110         case MONO_TYPE_PTR:
1111         case MONO_TYPE_FNPTR:
1112                 inst->type = STACK_PTR;
1113                 return;
1114         case MONO_TYPE_CLASS:
1115         case MONO_TYPE_STRING:
1116         case MONO_TYPE_OBJECT:
1117         case MONO_TYPE_SZARRAY:
1118         case MONO_TYPE_ARRAY:
1119                 inst->type = STACK_OBJ;
1120                 return;
1121         case MONO_TYPE_I8:
1122         case MONO_TYPE_U8:
1123                 inst->type = STACK_I8;
1124                 return;
1125         case MONO_TYPE_R4:
1126         case MONO_TYPE_R8:
1127                 inst->type = STACK_R8;
1128                 return;
1129         case MONO_TYPE_VALUETYPE:
1130                 if (type->data.klass->enumtype) {
1131                         type = type->data.klass->enum_basetype;
1132                         goto handle_enum;
1133                 } else {
1134                         inst->klass = klass;
1135                         inst->type = STACK_VTYPE;
1136                         return;
1137                 }
1138         case MONO_TYPE_TYPEDBYREF:
1139                 inst->klass = mono_defaults.typed_reference_class;
1140                 inst->type = STACK_VTYPE;
1141                 return;
1142         case MONO_TYPE_GENERICINST:
1143                 type = &type->data.generic_class->container_class->byval_arg;
1144                 goto handle_enum;
1145         default:
1146                 g_error ("unknown type 0x%02x in eval stack type", type->type);
1147         }
1148 }
1149
1150 /*
1151  * The following tables are used to quickly validate the IL code in type_from_op ().
1152  */
1153 static const char
1154 bin_num_table [STACK_MAX] [STACK_MAX] = {
1155         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1156         {STACK_INV, STACK_I4,  STACK_INV, STACK_PTR, STACK_INV, STACK_MP,  STACK_INV, STACK_INV},
1157         {STACK_INV, STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1158         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_MP,  STACK_INV, STACK_INV},
1159         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_R8,  STACK_INV, STACK_INV, STACK_INV},
1160         {STACK_INV, STACK_MP,  STACK_INV, STACK_MP,  STACK_INV, STACK_PTR, STACK_INV, STACK_INV},
1161         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1162         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
1163 };
1164
1165 static const char
1166 neg_table [] = {
1167         STACK_INV, STACK_I4, STACK_I8, STACK_PTR, STACK_R8, STACK_INV, STACK_INV, STACK_INV
1168 };
1169
1170 /* reduce the size of this table */
1171 static const char
1172 bin_int_table [STACK_MAX] [STACK_MAX] = {
1173         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1174         {STACK_INV, STACK_I4,  STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1175         {STACK_INV, STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1176         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1177         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1178         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1179         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1180         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
1181 };
1182
1183 static const char
1184 bin_comp_table [STACK_MAX] [STACK_MAX] = {
1185 /*      Inv i  L  p  F  &  O  vt */
1186         {0},
1187         {0, 1, 0, 1, 0, 0, 0, 0}, /* i, int32 */
1188         {0, 0, 1, 0, 0, 0, 0, 0}, /* L, int64 */
1189         {0, 1, 0, 1, 0, 2, 4, 0}, /* p, ptr */
1190         {0, 0, 0, 0, 1, 0, 0, 0}, /* F, R8 */
1191         {0, 0, 0, 2, 0, 1, 0, 0}, /* &, managed pointer */
1192         {0, 0, 0, 4, 0, 0, 3, 0}, /* O, reference */
1193         {0, 0, 0, 0, 0, 0, 0, 0}, /* vt value type */
1194 };
1195
1196 /* reduce the size of this table */
1197 static const char
1198 shift_table [STACK_MAX] [STACK_MAX] = {
1199         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1200         {STACK_INV, STACK_I4,  STACK_INV, STACK_I4,  STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1201         {STACK_INV, STACK_I8,  STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1202         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1203         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1204         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1205         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1206         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
1207 };
1208
1209 /*
1210  * Tables to map from the non-specific opcode to the matching
1211  * type-specific opcode.
1212  */
1213 /* handles from CEE_ADD to CEE_SHR_UN (CEE_REM_UN for floats) */
1214 static const guint16
1215 binops_op_map [STACK_MAX] = {
1216         0, 0, OP_LADD-CEE_ADD, OP_PADD-CEE_ADD, OP_FADD-CEE_ADD, OP_PADD-CEE_ADD
1217 };
1218
1219 /* handles from CEE_NEG to CEE_CONV_U8 */
1220 static const guint16
1221 unops_op_map [STACK_MAX] = {
1222         0, 0, OP_LNEG-CEE_NEG, OP_PNEG-CEE_NEG, OP_FNEG-CEE_NEG, OP_PNEG-CEE_NEG
1223 };
1224
1225 /* handles from CEE_CONV_U2 to CEE_SUB_OVF_UN */
1226 static const guint16
1227 ovfops_op_map [STACK_MAX] = {
1228         0, 0, OP_LCONV_TO_U2-CEE_CONV_U2, OP_PCONV_TO_U2-CEE_CONV_U2, OP_FCONV_TO_U2-CEE_CONV_U2, OP_PCONV_TO_U2-CEE_CONV_U2, OP_PCONV_TO_U2-CEE_CONV_U2
1229 };
1230
1231 /* handles from CEE_CONV_OVF_I1_UN to CEE_CONV_OVF_U_UN */
1232 static const guint16
1233 ovf2ops_op_map [STACK_MAX] = {
1234         0, 0, OP_LCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, OP_PCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, OP_FCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, OP_PCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN
1235 };
1236
1237 /* handles from CEE_CONV_OVF_I1 to CEE_CONV_OVF_U8 */
1238 static const guint16
1239 ovf3ops_op_map [STACK_MAX] = {
1240         0, 0, OP_LCONV_TO_OVF_I1-CEE_CONV_OVF_I1, OP_PCONV_TO_OVF_I1-CEE_CONV_OVF_I1, OP_FCONV_TO_OVF_I1-CEE_CONV_OVF_I1, OP_PCONV_TO_OVF_I1-CEE_CONV_OVF_I1
1241 };
1242
1243 /* handles from CEE_CEQ to CEE_CLT_UN */
1244 static const guint16
1245 ceqops_op_map [STACK_MAX] = {
1246         0, 0, OP_LCEQ-CEE_CEQ, OP_PCEQ-CEE_CEQ, OP_FCEQ-CEE_CEQ, OP_LCEQ-CEE_CEQ
1247 };
1248
1249 /*
1250  * Sets ins->type (the type on the eval stack) according to the
1251  * type of the opcode and the arguments to it.
1252  * Invalid IL code is marked by setting ins->type to the invalid value STACK_INV.
1253  *
1254  * FIXME: this function sets ins->type unconditionally in some cases, but
1255  * it should set it to invalid for some types (a conv.x on an object)
1256  */
1257 static void
1258 type_from_op (MonoInst *ins) {
1259         switch (ins->opcode) {
1260         /* binops */
1261         case CEE_ADD:
1262         case CEE_SUB:
1263         case CEE_MUL:
1264         case CEE_DIV:
1265         case CEE_REM:
1266                 /* FIXME: check unverifiable args for STACK_MP */
1267                 ins->type = bin_num_table [ins->inst_i0->type] [ins->inst_i1->type];
1268                 ins->opcode += binops_op_map [ins->type];
1269                 return;
1270         case CEE_DIV_UN:
1271         case CEE_REM_UN:
1272         case CEE_AND:
1273         case CEE_OR:
1274         case CEE_XOR:
1275                 ins->type = bin_int_table [ins->inst_i0->type] [ins->inst_i1->type];
1276                 ins->opcode += binops_op_map [ins->type];
1277                 return;
1278         case CEE_SHL:
1279         case CEE_SHR:
1280         case CEE_SHR_UN:
1281                 ins->type = shift_table [ins->inst_i0->type] [ins->inst_i1->type];
1282                 ins->opcode += binops_op_map [ins->type];
1283                 return;
1284         case OP_COMPARE:
1285         case OP_LCOMPARE:
1286                 /* FIXME: handle some specifics with ins->next->type */
1287                 ins->type = bin_comp_table [ins->inst_i0->type] [ins->inst_i1->type] ? STACK_I4: STACK_INV;
1288                 if ((ins->inst_i0->type == STACK_I8) || ((sizeof (gpointer) == 8) && ((ins->inst_i0->type == STACK_PTR) || (ins->inst_i0->type == STACK_OBJ) || (ins->inst_i0->type == STACK_MP))))
1289                         ins->opcode = OP_LCOMPARE;
1290                 return;
1291         case OP_CEQ:
1292         case OP_CGT:
1293         case OP_CGT_UN:
1294         case OP_CLT:
1295         case OP_CLT_UN:
1296                 ins->type = bin_comp_table [ins->inst_i0->type] [ins->inst_i1->type] ? STACK_I4: STACK_INV;
1297                 ins->opcode += ceqops_op_map [ins->inst_i0->type];
1298                 return;
1299         /* unops */
1300         case CEE_NEG:
1301                 ins->type = neg_table [ins->inst_i0->type];
1302                 ins->opcode += unops_op_map [ins->type];
1303                 return;
1304         case CEE_NOT:
1305                 if (ins->inst_i0->type >= STACK_I4 && ins->inst_i0->type <= STACK_PTR)
1306                         ins->type = ins->inst_i0->type;
1307                 else
1308                         ins->type = STACK_INV;
1309                 ins->opcode += unops_op_map [ins->type];
1310                 return;
1311         case CEE_CONV_I1:
1312         case CEE_CONV_I2:
1313         case CEE_CONV_I4:
1314         case CEE_CONV_U4:
1315                 ins->type = STACK_I4;
1316                 ins->opcode += unops_op_map [ins->inst_i0->type];
1317                 return;
1318         case CEE_CONV_R_UN:
1319                 ins->type = STACK_R8;
1320                 switch (ins->inst_i0->type) {
1321                 case STACK_I4:
1322                 case STACK_PTR:
1323                         break;
1324                 case STACK_I8:
1325                         ins->opcode = OP_LCONV_TO_R_UN;
1326                         break;
1327                 }
1328                 return;
1329         case CEE_CONV_OVF_I1:
1330         case CEE_CONV_OVF_U1:
1331         case CEE_CONV_OVF_I2:
1332         case CEE_CONV_OVF_U2:
1333         case CEE_CONV_OVF_I4:
1334         case CEE_CONV_OVF_U4:
1335                 ins->type = STACK_I4;
1336                 ins->opcode += ovf3ops_op_map [ins->inst_i0->type];
1337                 return;
1338         case CEE_CONV_OVF_I_UN:
1339         case CEE_CONV_OVF_U_UN:
1340                 ins->type = STACK_PTR;
1341                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1342                 return;
1343         case CEE_CONV_OVF_I1_UN:
1344         case CEE_CONV_OVF_I2_UN:
1345         case CEE_CONV_OVF_I4_UN:
1346         case CEE_CONV_OVF_U1_UN:
1347         case CEE_CONV_OVF_U2_UN:
1348         case CEE_CONV_OVF_U4_UN:
1349                 ins->type = STACK_I4;
1350                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1351                 return;
1352         case CEE_CONV_U:
1353                 ins->type = STACK_PTR;
1354                 switch (ins->inst_i0->type) {
1355                 case STACK_I4:
1356                 case STACK_PTR:
1357                 case STACK_MP:
1358                         break;
1359                 case STACK_I8:
1360                         ins->opcode = OP_LCONV_TO_U;
1361                         break;
1362                 case STACK_R8:
1363                         ins->opcode = OP_FCONV_TO_U;
1364                         break;
1365                 }
1366                 return;
1367         case CEE_CONV_I8:
1368         case CEE_CONV_U8:
1369                 ins->type = STACK_I8;
1370                 ins->opcode += unops_op_map [ins->inst_i0->type];
1371                 return;
1372         case CEE_CONV_OVF_I8:
1373         case CEE_CONV_OVF_U8:
1374                 ins->type = STACK_I8;
1375                 ins->opcode += ovf3ops_op_map [ins->inst_i0->type];
1376                 return;
1377         case CEE_CONV_OVF_U8_UN:
1378         case CEE_CONV_OVF_I8_UN:
1379                 ins->type = STACK_I8;
1380                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1381                 return;
1382         case CEE_CONV_R4:
1383         case CEE_CONV_R8:
1384                 ins->type = STACK_R8;
1385                 ins->opcode += unops_op_map [ins->inst_i0->type];
1386                 return;
1387         case CEE_CKFINITE:
1388                 ins->type = STACK_R8;
1389                 return;
1390         case CEE_CONV_U2:
1391         case CEE_CONV_U1:
1392                 ins->type = STACK_I4;
1393                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1394                 break;
1395         case CEE_CONV_I:
1396         case CEE_CONV_OVF_I:
1397         case CEE_CONV_OVF_U:
1398                 ins->type = STACK_PTR;
1399                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1400                 return;
1401         case CEE_ADD_OVF:
1402         case CEE_ADD_OVF_UN:
1403         case CEE_MUL_OVF:
1404         case CEE_MUL_OVF_UN:
1405         case CEE_SUB_OVF:
1406         case CEE_SUB_OVF_UN:
1407                 ins->type = bin_num_table [ins->inst_i0->type] [ins->inst_i1->type];
1408                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1409                 return;
1410         default:
1411                 g_error ("opcode 0x%04x not handled in type from op", ins->opcode);
1412                 break;
1413         }
1414 }
1415
1416 static const char
1417 ldind_type [] = {
1418         STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I8, STACK_PTR, STACK_R8, STACK_R8, STACK_OBJ
1419 };
1420
1421 /* map ldelem.x to the matching ldind.x opcode */
1422 static const guchar
1423 ldelem_to_ldind [] = {
1424         CEE_LDIND_I1,
1425         CEE_LDIND_U1,
1426         CEE_LDIND_I2,
1427         CEE_LDIND_U2,
1428         CEE_LDIND_I4,
1429         CEE_LDIND_U4,
1430         CEE_LDIND_I8,
1431         CEE_LDIND_I,
1432         CEE_LDIND_R4,
1433         CEE_LDIND_R8,
1434         CEE_LDIND_REF
1435 };
1436
1437 /* map stelem.x to the matching stind.x opcode */
1438 static const guchar
1439 stelem_to_stind [] = {
1440         CEE_STIND_I,
1441         CEE_STIND_I1,
1442         CEE_STIND_I2,
1443         CEE_STIND_I4,
1444         CEE_STIND_I8,
1445         CEE_STIND_R4,
1446         CEE_STIND_R8,
1447         CEE_STIND_REF
1448 };
1449
1450 #if 0
1451
1452 static const char
1453 param_table [STACK_MAX] [STACK_MAX] = {
1454         {0},
1455 };
1456
1457 static int
1458 check_values_to_signature (MonoInst *args, MonoType *this, MonoMethodSignature *sig) {
1459         int i;
1460
1461         if (sig->hasthis) {
1462                 switch (args->type) {
1463                 case STACK_I4:
1464                 case STACK_I8:
1465                 case STACK_R8:
1466                 case STACK_VTYPE:
1467                 case STACK_INV:
1468                         return 0;
1469                 }
1470                 args++;
1471         }
1472         for (i = 0; i < sig->param_count; ++i) {
1473                 switch (args [i].type) {
1474                 case STACK_INV:
1475                         return 0;
1476                 case STACK_MP:
1477                         if (!sig->params [i]->byref)
1478                                 return 0;
1479                         continue;
1480                 case STACK_OBJ:
1481                         if (sig->params [i]->byref)
1482                                 return 0;
1483                         switch (sig->params [i]->type) {
1484                         case MONO_TYPE_CLASS:
1485                         case MONO_TYPE_STRING:
1486                         case MONO_TYPE_OBJECT:
1487                         case MONO_TYPE_SZARRAY:
1488                         case MONO_TYPE_ARRAY:
1489                                 break;
1490                         default:
1491                                 return 0;
1492                         }
1493                         continue;
1494                 case STACK_R8:
1495                         if (sig->params [i]->byref)
1496                                 return 0;
1497                         if (sig->params [i]->type != MONO_TYPE_R4 && sig->params [i]->type != MONO_TYPE_R8)
1498                                 return 0;
1499                         continue;
1500                 case STACK_PTR:
1501                 case STACK_I4:
1502                 case STACK_I8:
1503                 case STACK_VTYPE:
1504                         break;
1505                 }
1506                 /*if (!param_table [args [i].type] [sig->params [i]->type])
1507                         return 0;*/
1508         }
1509         return 1;
1510 }
1511 #endif
1512
1513 /*
1514  * When we need a pointer to the current domain many times in a method, we
1515  * call mono_domain_get() once and we store the result in a local variable.
1516  * This function returns the variable that represents the MonoDomain*.
1517  */
1518 inline static MonoInst *
1519 mono_get_domainvar (MonoCompile *cfg)
1520 {
1521         if (!cfg->domainvar)
1522                 cfg->domainvar = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1523         return cfg->domainvar;
1524 }
1525
1526 /*
1527  * The got_var contains the address of the Global Offset Table when AOT
1528  * compiling.
1529  */
1530 inline static MonoInst *
1531 mono_get_got_var (MonoCompile *cfg)
1532 {
1533 #ifdef MONO_ARCH_NEED_GOT_VAR
1534         if (!cfg->compile_aot)
1535                 return NULL;
1536         if (!cfg->got_var) {
1537                 cfg->got_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1538         }
1539         return cfg->got_var;
1540 #else
1541         return NULL;
1542 #endif
1543 }
1544
1545 MonoInst*
1546 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1547 {
1548         MonoInst *inst;
1549         int num = cfg->num_varinfo;
1550
1551         if ((num + 1) >= cfg->varinfo_count) {
1552                 cfg->varinfo_count = (cfg->varinfo_count + 2) * 2;
1553                 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
1554                 cfg->vars = (MonoMethodVar **)g_realloc (cfg->vars, sizeof (MonoMethodVar*) * cfg->varinfo_count);
1555         }
1556
1557         /*g_print ("created temp %d of type 0x%x\n", num, type->type);*/
1558         mono_jit_stats.allocate_var++;
1559
1560         MONO_INST_NEW (cfg, inst, opcode);
1561         inst->inst_c0 = num;
1562         inst->inst_vtype = type;
1563         inst->klass = mono_class_from_mono_type (type);
1564         /* if set to 1 the variable is native */
1565         inst->unused = 0;
1566
1567         cfg->varinfo [num] = inst;
1568
1569         cfg->vars [num] = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoMethodVar));
1570         MONO_INIT_VARINFO (cfg->vars [num], num);
1571
1572         cfg->num_varinfo++;
1573         //g_print ("created temp %d of type %s\n", num, mono_type_get_name (type));
1574         return inst;
1575 }
1576
1577 /*
1578  * Transform a MonoInst into a load from the variable of index var_index.
1579  */
1580 void
1581 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index) {
1582         memset (dest, 0, sizeof (MonoInst));
1583         dest->ssa_op = MONO_SSA_LOAD;
1584         dest->inst_i0 = cfg->varinfo [var_index];
1585         dest->opcode = mono_type_to_ldind (dest->inst_i0->inst_vtype);
1586         type_to_eval_stack_type (dest->inst_i0->inst_vtype, dest);
1587         dest->klass = dest->inst_i0->klass;
1588 }
1589
1590 /*
1591  * Create a MonoInst that is a load from the variable of index var_index.
1592  */
1593 MonoInst*
1594 mono_compile_create_var_load (MonoCompile *cfg, gssize var_index) {
1595         MonoInst *dest;
1596         NEW_TEMPLOAD (cfg,dest,var_index);
1597         return dest;
1598 }
1599
1600 /*
1601  * Create a MonoInst that is a store of the given value into the variable of index var_index.
1602  */
1603 MonoInst*
1604 mono_compile_create_var_store (MonoCompile *cfg, gssize var_index, MonoInst *value) {
1605         MonoInst *dest;
1606         NEW_TEMPSTORE (cfg, dest, var_index, value);
1607         return dest;
1608 }
1609
1610 static MonoType*
1611 type_from_stack_type (MonoInst *ins) {
1612         switch (ins->type) {
1613         case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1614         case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1615         case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1616         case STACK_R8: return &mono_defaults.double_class->byval_arg;
1617         case STACK_MP:
1618                 /*
1619                  * FIXME: This doesn't work because mono_class_from_mono_type ()
1620                  * returns the original klass for a byref type, not a 'byref' class,
1621                  * causing the JIT to create variables with the wrong type, for
1622                  * example.
1623                  */
1624                 /*
1625                 if (ins->klass)
1626                         return &ins->klass->this_arg;
1627                 else
1628                 */
1629                         return &mono_defaults.object_class->this_arg;
1630         case STACK_OBJ: return &mono_defaults.object_class->byval_arg;
1631         case STACK_VTYPE: return &ins->klass->byval_arg;
1632         default:
1633                 g_error ("stack type %d to montype not handled\n", ins->type);
1634         }
1635         return NULL;
1636 }
1637
1638 MonoType*
1639 mono_type_from_stack_type (MonoInst *ins) {
1640         return type_from_stack_type (ins);
1641 }
1642
1643 static MonoClass*
1644 array_access_to_klass (int opcode)
1645 {
1646         switch (opcode) {
1647         case CEE_LDELEM_U1:
1648                 return mono_defaults.byte_class;
1649         case CEE_LDELEM_U2:
1650                 return mono_defaults.uint16_class;
1651         case CEE_LDELEM_I:
1652         case CEE_STELEM_I:
1653                 return mono_defaults.int_class;
1654         case CEE_LDELEM_I1:
1655         case CEE_STELEM_I1:
1656                 return mono_defaults.sbyte_class;
1657         case CEE_LDELEM_I2:
1658         case CEE_STELEM_I2:
1659                 return mono_defaults.int16_class;
1660         case CEE_LDELEM_I4:
1661         case CEE_STELEM_I4:
1662                 return mono_defaults.int32_class;
1663         case CEE_LDELEM_U4:
1664                 return mono_defaults.uint32_class;
1665         case CEE_LDELEM_I8:
1666         case CEE_STELEM_I8:
1667                 return mono_defaults.int64_class;
1668         case CEE_LDELEM_R4:
1669         case CEE_STELEM_R4:
1670                 return mono_defaults.single_class;
1671         case CEE_LDELEM_R8:
1672         case CEE_STELEM_R8:
1673                 return mono_defaults.double_class;
1674         case CEE_LDELEM_REF:
1675         case CEE_STELEM_REF:
1676                 return mono_defaults.object_class;
1677         default:
1678                 g_assert_not_reached ();
1679         }
1680         return NULL;
1681 }
1682
1683 void
1684 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1685 {
1686         MonoInst *prev;
1687         if (!bb->code) {
1688                 MONO_ADD_INS (bb, inst);
1689                 return;
1690         }
1691         switch (bb->last_ins->opcode) {
1692         case CEE_BEQ:
1693         case CEE_BGE:
1694         case CEE_BGT:
1695         case CEE_BLE:
1696         case CEE_BLT:
1697         case CEE_BNE_UN:
1698         case CEE_BGE_UN:
1699         case CEE_BGT_UN:
1700         case CEE_BLE_UN:
1701         case CEE_BLT_UN:
1702         case CEE_BR:
1703         case CEE_SWITCH:
1704                 prev = bb->code;
1705                 while (prev->next && prev->next != bb->last_ins)
1706                         prev = prev->next;
1707                 if (prev == bb->code) {
1708                         if (bb->last_ins == bb->code) {
1709                                 inst->next = bb->code;
1710                                 bb->code = inst;
1711                         } else {
1712                                 inst->next = prev->next;
1713                                 prev->next = inst;
1714                         }
1715                 } else {
1716                         inst->next = bb->last_ins;
1717                         prev->next = inst;
1718                 }
1719                 break;
1720         //      g_warning ("handle conditional jump in add_ins_to_end ()\n");
1721         default:
1722                 MONO_ADD_INS (bb, inst);
1723                 break;
1724         }
1725 }
1726
1727 void
1728 mono_add_varcopy_to_end (MonoCompile *cfg, MonoBasicBlock *bb, int src, int dest)
1729 {
1730         MonoInst *inst, *load;
1731
1732         NEW_TEMPLOAD (cfg, load, src);
1733
1734         NEW_TEMPSTORE (cfg, inst, dest, load);
1735         if (inst->opcode == CEE_STOBJ) {
1736                 NEW_TEMPLOADA (cfg, inst, dest);
1737                 handle_stobj (cfg, bb, inst, load, NULL, inst->klass, TRUE, FALSE, FALSE);
1738         } else {
1739                 inst->cil_code = NULL;
1740                 mono_add_ins_to_end (bb, inst);
1741         }
1742 }
1743
1744 /*
1745  * We try to share variables when possible
1746  */
1747 static MonoInst *
1748 mono_compile_get_interface_var (MonoCompile *cfg, int slot, MonoInst *ins)
1749 {
1750         MonoInst *res;
1751         int pos, vnum;
1752
1753         /* inlining can result in deeper stacks */
1754         if (slot >= mono_method_get_header (cfg->method)->max_stack)
1755                 return mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1756
1757         pos = ins->type - 1 + slot * STACK_MAX;
1758
1759         switch (ins->type) {
1760         case STACK_I4:
1761         case STACK_I8:
1762         case STACK_R8:
1763         case STACK_PTR:
1764         case STACK_MP:
1765         case STACK_OBJ:
1766                 if ((vnum = cfg->intvars [pos]))
1767                         return cfg->varinfo [vnum];
1768                 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1769                 cfg->intvars [pos] = res->inst_c0;
1770                 break;
1771         default:
1772                 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1773         }
1774         return res;
1775 }
1776
1777 /*
1778  * merge_stacks:
1779  *
1780  * Merge stack state between two basic blocks according to Ecma 335, Partition III,
1781  * section 1.8.1.1. Store the resulting stack state into stack_2.
1782  * Returns: TRUE, if verification succeeds, FALSE otherwise.
1783  * FIXME: We should store the stack state in a dedicated structure instead of in
1784  * MonoInst's.
1785  */
1786 static gboolean
1787 merge_stacks (MonoCompile *cfg, MonoStackSlot *state_1, MonoStackSlot *state_2, guint32 size)
1788 {
1789         int i;
1790
1791         if (cfg->dont_verify_stack_merge)
1792                 return TRUE;
1793
1794         /* FIXME: Implement all checks from the spec */
1795
1796         for (i = 0; i < size; ++i) {
1797                 MonoStackSlot *slot1 = &state_1 [i];
1798                 MonoStackSlot *slot2 = &state_2 [i];
1799
1800                 if (slot1->type != slot2->type)
1801                         return FALSE;
1802
1803                 switch (slot1->type) {
1804                 case STACK_PTR:
1805                         /* FIXME: Perform merge ? */
1806                         /* klass == NULL means a native int */
1807                         if (slot1->klass && slot2->klass) {
1808                                 if (slot1->klass != slot2->klass)
1809                                         return FALSE;
1810                         }
1811                         break;
1812                 case STACK_MP:
1813                         /* FIXME: Change this to an assert and fix the JIT to allways fill this */
1814                         if (slot1->klass && slot2->klass) {
1815                                 if (slot1->klass != slot2->klass)
1816                                         return FALSE;
1817                         }
1818                         break;
1819                 case STACK_OBJ: {
1820                         MonoClass *klass1 = slot1->klass;
1821                         MonoClass *klass2 = slot2->klass;
1822
1823                         if (!klass1) {
1824                                 /* slot1 is ldnull */
1825                         } else if (!klass2) {
1826                                 /* slot2 is ldnull */
1827                                 slot2->klass = slot1->klass;
1828                         }
1829                         break;
1830                 }
1831                 }
1832         }
1833
1834         return TRUE;
1835 }
1836
1837 /*
1838  * This function is called to handle items that are left on the evaluation stack
1839  * at basic block boundaries. What happens is that we save the values to local variables
1840  * and we reload them later when first entering the target basic block (with the
1841  * handle_loaded_temps () function).
1842  * It is also used to handle items on the stack in store opcodes, since it is
1843  * possible that the variable to be stored into is already on the stack, in
1844  * which case its old value should be used.
1845  * A single joint point will use the same variables (stored in the array bb->out_stack or
1846  * bb->in_stack, if the basic block is before or after the joint point).
1847  * If the stack merge fails at a join point, cfg->unverifiable is set.
1848  */
1849 static int
1850 handle_stack_args (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **sp, int count) {
1851         int i, bindex;
1852         MonoBasicBlock *outb;
1853         MonoInst *inst, **locals;
1854         MonoStackSlot *stack_state;
1855         gboolean found;
1856
1857         if (!count)
1858                 return 0;
1859         if (cfg->verbose_level > 3)
1860                 g_print ("%d item(s) on exit from B%d\n", count, bb->block_num);
1861
1862         stack_state = mono_mempool_alloc (cfg->mempool, sizeof (MonoStackSlot) * count);
1863         for (i = 0; i < count; ++i) {
1864                 stack_state [i].type = sp [i]->type;
1865                 stack_state [i].klass = sp [i]->klass;
1866
1867                 /* Check that instructions other than ldnull have ins->klass set */
1868                 if (!cfg->dont_verify_stack_merge && (sp [i]->type == STACK_OBJ) && !((sp [i]->opcode == OP_PCONST) && sp [i]->inst_c0 == 0))
1869                         g_assert (sp [i]->klass);
1870         }
1871
1872         /* Perform verification and stack state merge */
1873         for (i = 0; i < bb->out_count; ++i) {
1874                 outb = bb->out_bb [i];
1875
1876                 /* exception handlers are linked, but they should not be considered for stack args */
1877                 if (outb->flags & BB_EXCEPTION_HANDLER)
1878                         continue;
1879                 if (outb->stack_state) {
1880                         gboolean verified;
1881
1882                         if (count != outb->in_scount) {
1883                                 cfg->unverifiable = TRUE;
1884                                 return 0;
1885                         }
1886                         verified = merge_stacks (cfg, stack_state, outb->stack_state, count);
1887                         if (!verified) {
1888                                 cfg->unverifiable = TRUE;
1889                                 return 0;
1890                         }
1891
1892                         if (cfg->verbose_level > 3) {
1893                                 int j;
1894
1895                                 for (j = 0; j < count; ++j)
1896                                         printf ("\tStack state of BB%d, slot %d=%d\n", outb->block_num, j, outb->stack_state [j].type);
1897                         }
1898                 } else {
1899                         /* Make a copy of the stack state */
1900                         outb->stack_state = mono_mempool_alloc (cfg->mempool, sizeof (MonoStackSlot) * count);
1901                         memcpy (outb->stack_state, stack_state, sizeof (MonoStackSlot) * count);
1902                 }
1903         }
1904
1905         if (!bb->out_scount) {
1906                 bb->out_scount = count;
1907                 //g_print ("bblock %d has out:", bb->block_num);
1908                 found = FALSE;
1909                 for (i = 0; i < bb->out_count; ++i) {
1910                         outb = bb->out_bb [i];
1911                         /* exception handlers are linked, but they should not be considered for stack args */
1912                         if (outb->flags & BB_EXCEPTION_HANDLER)
1913                                 continue;
1914                         //g_print (" %d", outb->block_num);
1915                         if (outb->in_stack) {
1916                                 found = TRUE;
1917                                 bb->out_stack = outb->in_stack;
1918                                 break;
1919                         }
1920                 }
1921                 //g_print ("\n");
1922                 if (!found) {
1923                         bb->out_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * count);
1924                         for (i = 0; i < count; ++i) {
1925                                 /*
1926                                  * try to reuse temps already allocated for this purpouse, if they occupy the same
1927                                  * stack slot and if they are of the same type.
1928                                  * This won't cause conflicts since if 'local' is used to
1929                                  * store one of the values in the in_stack of a bblock, then
1930                                  * the same variable will be used for the same outgoing stack
1931                                  * slot as well.
1932                                  * This doesn't work when inlining methods, since the bblocks
1933                                  * in the inlined methods do not inherit their in_stack from
1934                                  * the bblock they are inlined to. See bug #58863 for an
1935                                  * example.
1936                                  */
1937                                 if (cfg->inlined_method)
1938                                         bb->out_stack [i] = mono_compile_create_var (cfg, type_from_stack_type (sp [i]), OP_LOCAL);
1939                                 else
1940                                         bb->out_stack [i] = mono_compile_get_interface_var (cfg, i, sp [i]);
1941                         }
1942                 }
1943         }
1944
1945         for (i = 0; i < bb->out_count; ++i) {
1946                 outb = bb->out_bb [i];
1947                 /* exception handlers are linked, but they should not be considered for stack args */
1948                 if (outb->flags & BB_EXCEPTION_HANDLER)
1949                         continue;
1950                 if (outb->in_scount) {
1951                         if (outb->in_scount != bb->out_scount)
1952                                 G_BREAKPOINT ();
1953                         continue; /* check they are the same locals */
1954                 }
1955                 outb->in_scount = count;
1956                 outb->in_stack = bb->out_stack;
1957         }
1958
1959         locals = bb->out_stack;
1960         for (i = 0; i < count; ++i) {
1961                 /* add store ops at the end of the bb, before the branch */
1962                 NEW_TEMPSTORE (cfg, inst, locals [i]->inst_c0, sp [i]);
1963                 if (inst->opcode == CEE_STOBJ) {
1964                         NEW_TEMPLOADA (cfg, inst, locals [i]->inst_c0);
1965                         handle_stobj (cfg, bb, inst, sp [i], sp [i]->cil_code, inst->klass, TRUE, FALSE, FALSE);
1966                 } else {
1967                         inst->cil_code = sp [i]->cil_code;
1968                         mono_add_ins_to_end (bb, inst);
1969                 }
1970                 if (cfg->verbose_level > 3)
1971                         g_print ("storing %d to temp %d\n", i, (int)locals [i]->inst_c0);
1972         }
1973
1974         /*
1975          * It is possible that the out bblocks already have in_stack assigned, and
1976          * the in_stacks differ. In this case, we will store to all the different
1977          * in_stacks.
1978          */
1979
1980         found = TRUE;
1981         bindex = 0;
1982         while (found) {
1983                 /* Find a bblock which has a different in_stack */
1984                 found = FALSE;
1985                 while (bindex < bb->out_count) {
1986                         outb = bb->out_bb [bindex];
1987                         /* exception handlers are linked, but they should not be considered for stack args */
1988                         if (outb->flags & BB_EXCEPTION_HANDLER) {
1989                                 bindex++;
1990                                 continue;
1991                         }
1992                         if (outb->in_stack != locals) {
1993                                 /*
1994                                  * Instead of storing sp [i] to locals [i], we need to store
1995                                  * locals [i] to <new locals>[i], since the sp [i] tree can't
1996                                  * be shared between trees.
1997                                  */
1998                                 for (i = 0; i < count; ++i)
1999                                         mono_add_varcopy_to_end (cfg, bb, locals [i]->inst_c0, outb->in_stack [i]->inst_c0);
2000                                 locals = outb->in_stack;
2001                                 found = TRUE;
2002                                 break;
2003                         }
2004                         bindex ++;
2005                 }
2006         }
2007
2008         return 0;
2009 }
2010
2011 static int
2012 ret_type_to_call_opcode (MonoType *type, int calli, int virt)
2013 {
2014         if (type->byref)
2015                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
2016
2017 handle_enum:
2018         switch (type->type) {
2019         case MONO_TYPE_VOID:
2020                 return calli? OP_VOIDCALL_REG: virt? OP_VOIDCALLVIRT: OP_VOIDCALL;
2021         case MONO_TYPE_I1:
2022         case MONO_TYPE_U1:
2023         case MONO_TYPE_BOOLEAN:
2024         case MONO_TYPE_I2:
2025         case MONO_TYPE_U2:
2026         case MONO_TYPE_CHAR:
2027         case MONO_TYPE_I4:
2028         case MONO_TYPE_U4:
2029                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
2030         case MONO_TYPE_I:
2031         case MONO_TYPE_U:
2032         case MONO_TYPE_PTR:
2033         case MONO_TYPE_FNPTR:
2034                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
2035         case MONO_TYPE_CLASS:
2036         case MONO_TYPE_STRING:
2037         case MONO_TYPE_OBJECT:
2038         case MONO_TYPE_SZARRAY:
2039         case MONO_TYPE_ARRAY:
2040                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
2041         case MONO_TYPE_I8:
2042         case MONO_TYPE_U8:
2043                 return calli? OP_LCALL_REG: virt? OP_LCALLVIRT: OP_LCALL;
2044         case MONO_TYPE_R4:
2045         case MONO_TYPE_R8:
2046                 return calli? OP_FCALL_REG: virt? OP_FCALLVIRT: OP_FCALL;
2047         case MONO_TYPE_VALUETYPE:
2048                 if (type->data.klass->enumtype) {
2049                         type = type->data.klass->enum_basetype;
2050                         goto handle_enum;
2051                 } else
2052                         return calli? OP_VCALL_REG: virt? OP_VCALLVIRT: OP_VCALL;
2053         case MONO_TYPE_TYPEDBYREF:
2054                 return calli? OP_VCALL_REG: virt? OP_VCALLVIRT: OP_VCALL;
2055         case MONO_TYPE_GENERICINST:
2056                 type = &type->data.generic_class->container_class->byval_arg;
2057                 goto handle_enum;
2058         default:
2059                 g_error ("unknown type 0x%02x in ret_type_to_call_opcode", type->type);
2060         }
2061         return -1;
2062 }
2063
2064 void
2065 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
2066 {
2067         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
2068         MonoJumpInfoBBTable *table;
2069
2070         table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
2071         table->table = bbs;
2072         table->table_size = num_blocks;
2073
2074         ji->ip.label = label;
2075         ji->type = MONO_PATCH_INFO_SWITCH;
2076         ji->data.table = table;
2077         ji->next = cfg->patch_info;
2078         cfg->patch_info = ji;
2079 }
2080
2081 /*
2082  * When we add a tree of instructions, we need to ensure the instructions currently
2083  * on the stack are executed before (like, if we load a value from a local).
2084  * We ensure this by saving the currently loaded values to temps and rewriting the
2085  * instructions to load the values.
2086  * This is not done for opcodes that terminate a basic block (because it's handled already
2087  * by handle_stack_args ()) and for opcodes that can't change values, like POP.
2088  */
2089 static void
2090 handle_loaded_temps (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst **stack, MonoInst **sp)
2091 {
2092         MonoInst *load, *store, *temp, *ins;
2093
2094         while (stack < sp) {
2095                 ins = *stack;
2096                 /* handle also other constants */
2097                 if ((ins->opcode != OP_ICONST) &&
2098                     /* temps never get written to again, so we can safely avoid duplicating them */
2099                     !(ins->ssa_op == MONO_SSA_LOAD && ins->inst_i0->opcode == OP_LOCAL && ins->inst_i0->flags & MONO_INST_IS_TEMP)) {
2100                         temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
2101                         temp->flags |= MONO_INST_IS_TEMP;
2102                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
2103                         store->cil_code = ins->cil_code;
2104                         if (store->opcode == CEE_STOBJ) {
2105                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
2106                                 handle_stobj (cfg, bblock, store, ins, ins->cil_code, temp->klass, FALSE, FALSE, FALSE);
2107                         } else
2108                                 MONO_ADD_INS (bblock, store);
2109                         NEW_TEMPLOAD (cfg, load, temp->inst_c0);
2110                         load->cil_code = ins->cil_code;
2111                         *stack = load;
2112                 }
2113                 stack++;
2114         }
2115 }
2116
2117 /*
2118  * target_type_is_incompatible:
2119  * @cfg: MonoCompile context
2120  *
2121  * Check that the item @arg on the evaluation stack can be stored
2122  * in the target type (can be a local, or field, etc).
2123  * The cfg arg can be used to check if we need verification or just
2124  * validity checks.
2125  *
2126  * Returns: non-0 value if arg can't be stored on a target.
2127  */
2128 static int
2129 target_type_is_incompatible (MonoCompile *cfg, MonoType *target, MonoInst *arg)
2130 {
2131         MonoType *simple_type;
2132         MonoClass *klass;
2133
2134         if (target->byref) {
2135                 /* FIXME: check that the pointed to types match */
2136                 if (arg->type == STACK_MP)
2137                         return arg->klass != mono_class_from_mono_type (target);
2138                 if (arg->type == STACK_PTR)
2139                         return 0;
2140                 return 1;
2141         }
2142         simple_type = mono_type_get_underlying_type (target);
2143         switch (simple_type->type) {
2144         case MONO_TYPE_VOID:
2145                 return 1;
2146         case MONO_TYPE_I1:
2147         case MONO_TYPE_U1:
2148         case MONO_TYPE_BOOLEAN:
2149         case MONO_TYPE_I2:
2150         case MONO_TYPE_U2:
2151         case MONO_TYPE_CHAR:
2152         case MONO_TYPE_I4:
2153         case MONO_TYPE_U4:
2154                 if (arg->type != STACK_I4 && arg->type != STACK_PTR)
2155                         return 1;
2156                 return 0;
2157         case MONO_TYPE_PTR:
2158                 /* STACK_MP is needed when setting pinned locals */
2159                 if (arg->type != STACK_I4 && arg->type != STACK_PTR && arg->type != STACK_MP)
2160                         return 1;
2161                 return 0;
2162         case MONO_TYPE_I:
2163         case MONO_TYPE_U:
2164         case MONO_TYPE_FNPTR:
2165                 if (arg->type != STACK_I4 && arg->type != STACK_PTR)
2166                         return 1;
2167                 return 0;
2168         case MONO_TYPE_CLASS:
2169         case MONO_TYPE_STRING:
2170         case MONO_TYPE_OBJECT:
2171         case MONO_TYPE_SZARRAY:
2172         case MONO_TYPE_ARRAY:
2173                 if (arg->type != STACK_OBJ)
2174                         return 1;
2175                 /* FIXME: check type compatibility */
2176                 return 0;
2177         case MONO_TYPE_I8:
2178         case MONO_TYPE_U8:
2179                 if (arg->type != STACK_I8)
2180                         return 1;
2181                 return 0;
2182         case MONO_TYPE_R4:
2183         case MONO_TYPE_R8:
2184                 if (arg->type != STACK_R8)
2185                         return 1;
2186                 return 0;
2187         case MONO_TYPE_VALUETYPE:
2188                 if (arg->type != STACK_VTYPE)
2189                         return 1;
2190                 klass = mono_class_from_mono_type (simple_type);
2191                 if (klass != arg->klass)
2192                         return 1;
2193                 return 0;
2194         case MONO_TYPE_TYPEDBYREF:
2195                 if (arg->type != STACK_VTYPE)
2196                         return 1;
2197                 klass = mono_class_from_mono_type (simple_type);
2198                 if (klass != arg->klass)
2199                         return 1;
2200                 return 0;
2201         case MONO_TYPE_GENERICINST:
2202                 if (mono_type_generic_inst_is_valuetype (simple_type)) {
2203                         if (arg->type != STACK_VTYPE)
2204                                 return 1;
2205                         klass = mono_class_from_mono_type (simple_type);
2206                         if (klass != arg->klass)
2207                                 return 1;
2208                         return 0;
2209                 } else {
2210                         if (arg->type != STACK_OBJ)
2211                                 return 1;
2212                         /* FIXME: check type compatibility */
2213                         return 0;
2214                 }
2215         default:
2216                 g_error ("unknown type 0x%02x in target_type_is_incompatible", simple_type->type);
2217         }
2218         return 1;
2219 }
2220
2221 /*
2222  * Prepare arguments for passing to a function call.
2223  * Return a non-zero value if the arguments can't be passed to the given
2224  * signature.
2225  * The type checks are not yet complete and some conversions may need
2226  * casts on 32 or 64 bit architectures.
2227  *
2228  * FIXME: implement this using target_type_is_incompatible ()
2229  */
2230 static int
2231 check_call_signature (MonoCompile *cfg, MonoMethodSignature *sig, MonoInst **args)
2232 {
2233         MonoType *simple_type;
2234         int i;
2235
2236         if (sig->hasthis) {
2237                 if (args [0]->type != STACK_OBJ && args [0]->type != STACK_MP && args [0]->type != STACK_PTR)
2238                         return 1;
2239                 args++;
2240         }
2241         for (i = 0; i < sig->param_count; ++i) {
2242                 if (sig->params [i]->byref) {
2243                         if (args [i]->type != STACK_MP && args [i]->type != STACK_PTR)
2244                                 return 1;
2245                         continue;
2246                 }
2247                 simple_type = sig->params [i];
2248 handle_enum:
2249                 switch (simple_type->type) {
2250                 case MONO_TYPE_VOID:
2251                         return 1;
2252                         continue;
2253                 case MONO_TYPE_I1:
2254                 case MONO_TYPE_U1:
2255                 case MONO_TYPE_BOOLEAN:
2256                 case MONO_TYPE_I2:
2257                 case MONO_TYPE_U2:
2258                 case MONO_TYPE_CHAR:
2259                 case MONO_TYPE_I4:
2260                 case MONO_TYPE_U4:
2261                         if (args [i]->type != STACK_I4 && args [i]->type != STACK_PTR)
2262                                 return 1;
2263                         continue;
2264                 case MONO_TYPE_I:
2265                 case MONO_TYPE_U:
2266                 case MONO_TYPE_PTR:
2267                 case MONO_TYPE_FNPTR:
2268                         if (args [i]->type != STACK_I4 && args [i]->type != STACK_PTR && args [i]->type != STACK_MP && args [i]->type != STACK_OBJ)
2269                                 return 1;
2270                         continue;
2271                 case MONO_TYPE_CLASS:
2272                 case MONO_TYPE_STRING:
2273                 case MONO_TYPE_OBJECT:
2274                 case MONO_TYPE_SZARRAY:
2275                 case MONO_TYPE_ARRAY:
2276                         if (args [i]->type != STACK_OBJ)
2277                                 return 1;
2278                         continue;
2279                 case MONO_TYPE_I8:
2280                 case MONO_TYPE_U8:
2281                         if (args [i]->type != STACK_I8)
2282                                 return 1;
2283                         continue;
2284                 case MONO_TYPE_R4:
2285                 case MONO_TYPE_R8:
2286                         if (args [i]->type != STACK_R8)
2287                                 return 1;
2288                         continue;
2289                 case MONO_TYPE_VALUETYPE:
2290                         if (simple_type->data.klass->enumtype) {
2291                                 simple_type = simple_type->data.klass->enum_basetype;
2292                                 goto handle_enum;
2293                         }
2294                         if (args [i]->type != STACK_VTYPE)
2295                                 return 1;
2296                         continue;
2297                 case MONO_TYPE_TYPEDBYREF:
2298                         if (args [i]->type != STACK_VTYPE)
2299                                 return 1;
2300                         continue;
2301                 case MONO_TYPE_GENERICINST:
2302                         simple_type = &simple_type->data.generic_class->container_class->byval_arg;
2303                         goto handle_enum;
2304
2305                 default:
2306                         g_error ("unknown type 0x%02x in check_call_signature",
2307                                  simple_type->type);
2308                 }
2309         }
2310         return 0;
2311 }
2312
2313 inline static int
2314 mono_spill_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoCallInst *call, MonoMethodSignature *sig, gboolean ret_object,
2315                  const guint8 *ip, gboolean to_end)
2316 {
2317         MonoInst *temp, *store, *ins = (MonoInst*)call;
2318         MonoType *ret = sig->ret;
2319
2320         if (!MONO_TYPE_IS_VOID (ret) || ret_object) {
2321                 if (ret_object) {
2322                         call->inst.type = STACK_OBJ;
2323                         call->inst.opcode = CEE_CALL;
2324                         temp = mono_compile_create_var (cfg, &mono_defaults.string_class->byval_arg, OP_LOCAL);
2325                 } else {
2326                         type_to_eval_stack_type (ret, ins);
2327                         temp = mono_compile_create_var (cfg, ret, OP_LOCAL);
2328                 }
2329
2330                 temp->flags |= MONO_INST_IS_TEMP;
2331
2332                 if (MONO_TYPE_ISSTRUCT (ret)) {
2333                         MonoInst *loada, *dummy_store;
2334
2335                         /*
2336                          * Emit a dummy store to the local holding the result so the
2337                          * liveness info remains correct.
2338                          */
2339                         NEW_DUMMY_STORE (cfg, dummy_store, temp->inst_c0);
2340                         if (to_end)
2341                                 mono_add_ins_to_end (bblock, dummy_store);
2342                         else
2343                                 MONO_ADD_INS (bblock, dummy_store);
2344
2345                         /* we use this to allocate native sized structs */
2346                         temp->unused = sig->pinvoke;
2347
2348                         NEW_TEMPLOADA (cfg, loada, temp->inst_c0);
2349                         if (call->inst.opcode == OP_VCALL)
2350                                 ins->inst_left = loada;
2351                         else
2352                                 ins->inst_right = loada; /* a virtual or indirect call */
2353
2354                         if (to_end)
2355                                 mono_add_ins_to_end (bblock, ins);
2356                         else
2357                                 MONO_ADD_INS (bblock, ins);
2358                 } else {
2359                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
2360                         store->cil_code = ip;
2361                         if (to_end)
2362                                 mono_add_ins_to_end (bblock, store);
2363                         else
2364                                 MONO_ADD_INS (bblock, store);
2365                 }
2366                 return temp->inst_c0;
2367         } else {
2368                 if (to_end)
2369                         mono_add_ins_to_end (bblock, ins);
2370                 else
2371                         MONO_ADD_INS (bblock, ins);
2372                 return -1;
2373         }
2374 }
2375
2376 inline static MonoCallInst *
2377 mono_emit_call_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
2378                      MonoInst **args, int calli, int virtual, const guint8 *ip, gboolean to_end)
2379 {
2380         MonoCallInst *call;
2381         MonoInst *arg;
2382
2383         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (sig->ret, calli, virtual));
2384
2385         call->inst.cil_code = ip;
2386         call->args = args;
2387         call->signature = sig;
2388         call = mono_arch_call_opcode (cfg, bblock, call, virtual);
2389         type_to_eval_stack_type (sig->ret, &call->inst);
2390
2391         for (arg = call->out_args; arg;) {
2392                 MonoInst *narg = arg->next;
2393                 arg->next = NULL;
2394                 if (!arg->cil_code)
2395                         arg->cil_code = ip;
2396                 if (to_end)
2397                         mono_add_ins_to_end (bblock, arg);
2398                 else
2399                         MONO_ADD_INS (bblock, arg);
2400                 arg = narg;
2401         }
2402         return call;
2403 }
2404
2405 inline static int
2406 mono_emit_calli (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
2407                  MonoInst **args, MonoInst *addr, const guint8 *ip)
2408 {
2409         MonoCallInst *call = mono_emit_call_args (cfg, bblock, sig, args, TRUE, FALSE, ip, FALSE);
2410
2411         call->inst.inst_i0 = addr;
2412
2413         return mono_spill_call (cfg, bblock, call, sig, FALSE, ip, FALSE);
2414 }
2415
2416 static MonoCallInst*
2417 mono_emit_method_call_full (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method, MonoMethodSignature *sig,
2418                        MonoInst **args, const guint8 *ip, MonoInst *this, gboolean to_end)
2419 {
2420         gboolean virtual = this != NULL;
2421         MonoCallInst *call;
2422
2423         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, virtual, ip, to_end);
2424
2425         if (this && sig->hasthis &&
2426             (method->klass->marshalbyref || method->klass == mono_defaults.object_class) &&
2427             !(method->flags & METHOD_ATTRIBUTE_VIRTUAL) && !MONO_CHECK_THIS (this)) {
2428                 call->method = mono_marshal_get_remoting_invoke_with_check (method);
2429         } else {
2430                 call->method = method;
2431         }
2432         call->inst.flags |= MONO_INST_HAS_METHOD;
2433         call->inst.inst_left = this;
2434
2435         if (call->method->klass->flags & TYPE_ATTRIBUTE_INTERFACE)
2436                 /* Needed by the code generated in inssel.brg */
2437                 mono_get_got_var (cfg);
2438
2439         return call;
2440 }
2441
2442 static MonoCallInst*
2443 mono_emit_method_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method, MonoMethodSignature *sig,
2444                        MonoInst **args, const guint8 *ip, MonoInst *this)
2445 {
2446         return mono_emit_method_call_full (cfg, bblock, method, sig, args, ip, this, FALSE);
2447 }
2448
2449 inline static int
2450 mono_emit_method_call_spilled (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method,
2451                        MonoMethodSignature *signature, MonoInst **args, const guint8 *ip, MonoInst *this)
2452 {
2453         MonoCallInst *call = mono_emit_method_call (cfg, bblock, method, signature, args, ip, this);
2454
2455         return mono_spill_call (cfg, bblock, call, signature, method->string_ctor, ip, FALSE);
2456 }
2457
2458 inline static int
2459 mono_emit_method_call_spilled_full (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method,
2460                        MonoMethodSignature *signature, MonoInst **args, const guint8 *ip, MonoInst *this,
2461                        gboolean ret_object, gboolean to_end)
2462 {
2463         MonoCallInst *call = mono_emit_method_call_full (cfg, bblock, method, signature, args, ip, this, to_end);
2464
2465         return mono_spill_call (cfg, bblock, call, signature, ret_object, ip, to_end);
2466 }
2467
2468 inline static int
2469 mono_emit_native_call (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoMethodSignature *sig,
2470                        MonoInst **args, const guint8 *ip, gboolean ret_object, gboolean to_end)
2471 {
2472         MonoCallInst *call;
2473
2474         g_assert (sig);
2475
2476         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, FALSE, ip, to_end);
2477         call->fptr = func;
2478
2479         return mono_spill_call (cfg, bblock, call, sig, ret_object, ip, to_end);
2480 }
2481
2482 inline static int
2483 mono_emit_jit_icall (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoInst **args, const guint8 *ip)
2484 {
2485         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (func);
2486
2487         if (!info) {
2488                 g_warning ("unregistered JIT ICall");
2489                 g_assert_not_reached ();
2490         }
2491
2492         return mono_emit_native_call (cfg, bblock, mono_icall_get_wrapper (info), info->sig, args, ip, FALSE, FALSE);
2493 }
2494
2495 static void
2496 mono_emulate_opcode (MonoCompile *cfg, MonoInst *tree, MonoInst **iargs, MonoJitICallInfo *info)
2497 {
2498         MonoInst *ins, *temp = NULL, *store, *load, *begin;
2499         MonoInst *last_arg = NULL;
2500         int nargs;
2501         MonoCallInst *call;
2502
2503         //g_print ("emulating: ");
2504         //mono_print_tree_nl (tree);
2505         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (info->sig->ret, FALSE, FALSE));
2506         ins = (MonoInst*)call;
2507
2508         call->inst.cil_code = tree->cil_code;
2509         call->args = iargs;
2510         call->signature = info->sig;
2511
2512         call = mono_arch_call_opcode (cfg, cfg->cbb, call, FALSE);
2513
2514         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2515                 temp = mono_compile_create_var (cfg, info->sig->ret, OP_LOCAL);
2516                 temp->flags |= MONO_INST_IS_TEMP;
2517                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
2518                 store->cil_code = tree->cil_code;
2519         } else {
2520                 store = ins;
2521         }
2522
2523         nargs = info->sig->param_count + info->sig->hasthis;
2524
2525         for (last_arg = call->out_args; last_arg && last_arg->next; last_arg = last_arg->next) ;
2526
2527         if (nargs)
2528                 last_arg->next = store;
2529
2530         if (nargs)
2531                 begin = call->out_args;
2532         else
2533                 begin = store;
2534
2535         if (cfg->prev_ins) {
2536                 /*
2537                  * This assumes that that in a tree, emulate_opcode is called for a
2538                  * node before it is called for its children. dec_foreach needs to
2539                  * take this into account.
2540                  */
2541                 store->next = cfg->prev_ins->next;
2542                 cfg->prev_ins->next = begin;
2543         } else {
2544                 store->next = cfg->cbb->code;
2545                 cfg->cbb->code = begin;
2546         }
2547
2548         call->fptr = mono_icall_get_wrapper (info);
2549
2550         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2551                 NEW_TEMPLOAD (cfg, load, temp->inst_c0);
2552                 *tree = *load;
2553         }
2554 }
2555
2556 static MonoMethodSignature *
2557 mono_get_element_address_signature (int arity)
2558 {
2559         static GHashTable *sighash = NULL;
2560         MonoMethodSignature *res;
2561         int i;
2562
2563         mono_jit_lock ();
2564         if (!sighash) {
2565                 sighash = g_hash_table_new (NULL, NULL);
2566         }
2567         else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
2568                 LeaveCriticalSection (&jit_mutex);
2569                 return res;
2570         }
2571
2572         res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
2573
2574         res->pinvoke = 1;
2575 #ifdef MONO_ARCH_VARARG_ICALLS
2576         /* Only set this only some archs since not all backends can handle varargs+pinvoke */
2577         res->call_convention = MONO_CALL_VARARG;
2578 #endif
2579         res->params [0] = &mono_defaults.array_class->byval_arg;
2580
2581         for (i = 1; i <= arity; i++)
2582                 res->params [i] = &mono_defaults.int_class->byval_arg;
2583
2584         res->ret = &mono_defaults.int_class->byval_arg;
2585
2586         g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
2587         mono_jit_unlock ();
2588
2589         return res;
2590 }
2591
2592 static MonoMethodSignature *
2593 mono_get_array_new_va_signature (int arity)
2594 {
2595         static GHashTable *sighash = NULL;
2596         MonoMethodSignature *res;
2597         int i;
2598
2599         mono_jit_lock ();
2600         if (!sighash) {
2601                 sighash = g_hash_table_new (NULL, NULL);
2602         }
2603         else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
2604                 mono_jit_unlock ();
2605                 return res;
2606         }
2607
2608         res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
2609
2610         res->pinvoke = 1;
2611 #ifdef MONO_ARCH_VARARG_ICALLS
2612         /* Only set this only some archs since not all backends can handle varargs+pinvoke */
2613         res->call_convention = MONO_CALL_VARARG;
2614 #endif
2615
2616         res->params [0] = &mono_defaults.int_class->byval_arg;
2617         for (i = 0; i < arity; i++)
2618                 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
2619
2620         res->ret = &mono_defaults.int_class->byval_arg;
2621
2622         g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
2623         mono_jit_unlock ();
2624
2625         return res;
2626 }
2627
2628 static MonoMethod*
2629 get_memcpy_method (void)
2630 {
2631         static MonoMethod *memcpy_method = NULL;
2632         if (!memcpy_method) {
2633                 memcpy_method = mono_class_get_method_from_name (mono_defaults.string_class, "memcpy", 3);
2634                 if (!memcpy_method)
2635                         g_error ("Old corlib found. Install a new one");
2636         }
2637         return memcpy_method;
2638 }
2639
2640 static void
2641 handle_stobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, MonoInst *src, const unsigned char *ip, MonoClass *klass, gboolean to_end, gboolean native, gboolean write_barrier) {
2642         MonoInst *iargs [3];
2643         int n;
2644         guint32 align = 0;
2645         MonoMethod *memcpy_method;
2646
2647         g_assert (klass);
2648         /*
2649          * This check breaks with spilled vars... need to handle it during verification anyway.
2650          * g_assert (klass && klass == src->klass && klass == dest->klass);
2651          */
2652
2653         if (native)
2654                 n = mono_class_native_size (klass, &align);
2655         else
2656                 n = mono_class_value_size (klass, &align);
2657
2658 #if HAVE_WRITE_BARRIERS
2659         /* if native is true there should be no references in the struct */
2660         if (write_barrier && klass->has_references && !native) {
2661                 iargs [0] = dest;
2662                 iargs [1] = src;
2663                 NEW_PCONST (cfg, iargs [2], klass);
2664
2665                 mono_emit_jit_icall (cfg, bblock, mono_value_copy, iargs, ip);
2666                 return;
2667         }
2668 #endif
2669
2670         /* FIXME: add write barrier handling */
2671         if ((cfg->opt & MONO_OPT_INTRINS) && !to_end && n <= sizeof (gpointer) * 5) {
2672                 MonoInst *inst;
2673                 if (dest->opcode == OP_LDADDR) {
2674                         /* Keep liveness info correct */
2675                         NEW_DUMMY_STORE (cfg, inst, dest->inst_i0->inst_c0);
2676                         MONO_ADD_INS (bblock, inst);
2677                 }
2678                 MONO_INST_NEW (cfg, inst, OP_MEMCPY);
2679                 inst->inst_left = dest;
2680                 inst->inst_right = src;
2681                 inst->cil_code = ip;
2682                 inst->unused = n;
2683                 MONO_ADD_INS (bblock, inst);
2684                 return;
2685         }
2686         iargs [0] = dest;
2687         iargs [1] = src;
2688         NEW_ICONST (cfg, iargs [2], n);
2689
2690         memcpy_method = get_memcpy_method ();
2691         mono_emit_method_call_spilled_full (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL, FALSE, to_end);
2692 }
2693
2694 static MonoMethod*
2695 get_memset_method (void)
2696 {
2697         static MonoMethod *memset_method = NULL;
2698         if (!memset_method) {
2699                 memset_method = mono_class_get_method_from_name (mono_defaults.string_class, "memset", 3);
2700                 if (!memset_method)
2701                         g_error ("Old corlib found. Install a new one");
2702         }
2703         return memset_method;
2704 }
2705
2706 static void
2707 handle_initobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, const guchar *ip, MonoClass *klass, MonoInst **stack_start, MonoInst **sp)
2708 {
2709         MonoInst *iargs [3];
2710         MonoInst *ins, *zero_int32;
2711         int n;
2712         MonoMethod *memset_method;
2713
2714         NEW_ICONST (cfg, zero_int32, 0);
2715
2716         mono_class_init (klass);
2717         n = mono_class_value_size (klass, NULL);
2718         MONO_INST_NEW (cfg, ins, 0);
2719         ins->cil_code = ip;
2720         ins->inst_left = dest;
2721         ins->inst_right = zero_int32;
2722         switch (n) {
2723         case 1:
2724                 ins->opcode = CEE_STIND_I1;
2725                 MONO_ADD_INS (bblock, ins);
2726                 break;
2727         case 2:
2728                 ins->opcode = CEE_STIND_I2;
2729                 MONO_ADD_INS (bblock, ins);
2730                 break;
2731         case 4:
2732                 ins->opcode = CEE_STIND_I4;
2733                 MONO_ADD_INS (bblock, ins);
2734                 break;
2735         default:
2736                 if (n <= sizeof (gpointer) * 5) {
2737                         ins->opcode = OP_MEMSET;
2738                         ins->inst_imm = 0;
2739                         ins->unused = n;
2740                         MONO_ADD_INS (bblock, ins);
2741                         break;
2742                 }
2743                 memset_method = get_memset_method ();
2744                 handle_loaded_temps (cfg, bblock, stack_start, sp);
2745                 iargs [0] = dest;
2746                 NEW_ICONST (cfg, iargs [1], 0);
2747                 NEW_ICONST (cfg, iargs [2], n);
2748                 mono_emit_method_call_spilled (cfg, bblock, memset_method, memset_method->signature, iargs, ip, NULL);
2749                 break;
2750         }
2751 }
2752
2753 static int
2754 handle_alloc (MonoCompile *cfg, MonoBasicBlock *bblock, MonoClass *klass, gboolean for_box, const guchar *ip)
2755 {
2756         MonoInst *iargs [2];
2757         void *alloc_ftn;
2758
2759         if (cfg->opt & MONO_OPT_SHARED) {
2760                 NEW_DOMAINCONST (cfg, iargs [0]);
2761                 NEW_CLASSCONST (cfg, iargs [1], klass);
2762
2763                 alloc_ftn = mono_object_new;
2764         } else if (cfg->compile_aot && bblock->out_of_line && klass->type_token && klass->image == mono_defaults.corlib) {
2765                 /* This happens often in argument checking code, eg. throw new FooException... */
2766                 /* Avoid relocations by calling a helper function specialized to mscorlib */
2767                 NEW_ICONST (cfg, iargs [0], mono_metadata_token_index (klass->type_token));
2768                 return mono_emit_jit_icall (cfg, bblock, mono_helper_newobj_mscorlib, iargs, ip);
2769         } else {
2770                 MonoVTable *vtable = mono_class_vtable (cfg->domain, klass);
2771                 gboolean pass_lw;
2772
2773                 alloc_ftn = mono_class_get_allocation_ftn (vtable, for_box, &pass_lw);
2774                 if (pass_lw) {
2775                         guint32 lw = vtable->klass->instance_size;
2776                         lw = ((lw + (sizeof (gpointer) - 1)) & ~(sizeof (gpointer) - 1)) / sizeof (gpointer);
2777                         NEW_ICONST (cfg, iargs [0], lw);
2778                         NEW_VTABLECONST (cfg, iargs [1], vtable);
2779                 }
2780                 else
2781                         NEW_VTABLECONST (cfg, iargs [0], vtable);
2782         }
2783
2784         return mono_emit_jit_icall (cfg, bblock, alloc_ftn, iargs, ip);
2785 }
2786
2787 /**
2788  * Handles unbox of a Nullable<T>, returning a temp variable
2789  * where the result is stored
2790  */
2791 static int
2792 handle_unbox_nullable (MonoCompile* cfg, MonoBasicBlock* bblock, MonoInst* val, const guchar *ip, MonoClass* klass)
2793 {
2794        MonoMethod* method = mono_class_get_method_from_name (klass, "Unbox", 1);
2795        return mono_emit_method_call_spilled (cfg, bblock, method, mono_method_signature (method), &val, ip, NULL);
2796
2797 }
2798
2799
2800
2801 static MonoInst *
2802 handle_box (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *val, const guchar *ip, MonoClass *klass)
2803 {
2804         MonoInst *dest, *vtoffset, *add, *vstore;
2805         int temp;
2806
2807        if (mono_class_is_nullable (klass)) {
2808                MonoMethod* method = mono_class_get_method_from_name (klass, "Box", 1);
2809                temp = mono_emit_method_call_spilled (cfg, bblock, method, mono_method_signature (method), &val, ip, NULL);
2810                NEW_TEMPLOAD (cfg, dest, temp);
2811                return dest;
2812        }
2813
2814
2815         temp = handle_alloc (cfg, bblock, klass, TRUE, ip);
2816         NEW_TEMPLOAD (cfg, dest, temp);
2817         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
2818         MONO_INST_NEW (cfg, add, OP_PADD);
2819         add->inst_left = dest;
2820         add->inst_right = vtoffset;
2821         add->cil_code = ip;
2822         add->klass = klass;
2823         MONO_INST_NEW (cfg, vstore, CEE_STIND_I);
2824         vstore->opcode = mono_type_to_stind (&klass->byval_arg);
2825         vstore->cil_code = ip;
2826         vstore->inst_left = add;
2827         vstore->inst_right = val;
2828
2829         if (vstore->opcode == CEE_STOBJ) {
2830                 handle_stobj (cfg, bblock, add, val, ip, klass, FALSE, FALSE, TRUE);
2831         } else
2832                 MONO_ADD_INS (bblock, vstore);
2833
2834         NEW_TEMPLOAD (cfg, dest, temp);
2835         return dest;
2836 }
2837
2838 static int
2839 handle_array_new (MonoCompile *cfg, MonoBasicBlock *bblock, int rank, MonoInst **sp, unsigned char *ip)
2840 {
2841         MonoMethodSignature *esig;
2842         char icall_name [256];
2843         char *name;
2844         MonoJitICallInfo *info;
2845
2846         /* Need to register the icall so it gets an icall wrapper */
2847         sprintf (icall_name, "ves_array_new_va_%d", rank);
2848
2849         info = mono_find_jit_icall_by_name (icall_name);
2850         if (info == NULL) {
2851                 esig = mono_get_array_new_va_signature (rank);
2852                 name = g_strdup (icall_name);
2853                 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
2854
2855                 mono_jit_lock ();
2856                 g_hash_table_insert (jit_icall_name_hash, name, name);
2857                 mono_jit_unlock ();
2858         }
2859
2860         cfg->flags |= MONO_CFG_HAS_VARARGS;
2861
2862         return mono_emit_native_call (cfg, bblock, mono_icall_get_wrapper (info), info->sig, sp, ip, TRUE, FALSE);
2863 }
2864
2865 static void
2866 mono_emit_load_got_addr (MonoCompile *cfg)
2867 {
2868         MonoInst *load, *store, *dummy_use;
2869         MonoInst *get_got;
2870
2871         if (!cfg->got_var || cfg->got_var_allocated)
2872                 return;
2873
2874         MONO_INST_NEW (cfg, get_got, OP_LOAD_GOTADDR);
2875         NEW_TEMPSTORE (cfg, store, cfg->got_var->inst_c0, get_got);
2876
2877         /* Add it to the start of the first bblock */
2878         if (cfg->bb_entry->code) {
2879                 store->next = cfg->bb_entry->code;
2880                 cfg->bb_entry->code = store;
2881         }
2882         else
2883                 MONO_ADD_INS (cfg->bb_entry, store);
2884
2885         cfg->got_var_allocated = TRUE;
2886
2887         /*
2888          * Add a dummy use to keep the got_var alive, since real uses might
2889          * only be generated in the decompose or instruction selection phases.
2890          * Add it to end_bblock, so the variable's lifetime covers the whole
2891          * method.
2892          */
2893         NEW_TEMPLOAD (cfg, load, cfg->got_var->inst_c0);
2894         NEW_DUMMY_USE (cfg, dummy_use, load);
2895         MONO_ADD_INS (cfg->bb_exit, dummy_use);
2896 }
2897
2898 #define CODE_IS_STLOC(ip) (((ip) [0] >= CEE_STLOC_0 && (ip) [0] <= CEE_STLOC_3) || ((ip) [0] == CEE_STLOC_S))
2899
2900 static gboolean
2901 mini_class_is_system_array (MonoClass *klass)
2902 {
2903         if (klass->parent == mono_defaults.array_class)
2904                 return TRUE;
2905         else if (mono_defaults.generic_array_class && klass->parent && klass->parent->generic_class)
2906                 return klass->parent->generic_class->container_class == mono_defaults.generic_array_class;
2907         else
2908                 return FALSE;
2909 }
2910
2911 static gboolean
2912 mono_method_check_inlining (MonoCompile *cfg, MonoMethod *method)
2913 {
2914         MonoMethodHeader *header = mono_method_get_header (method);
2915         MonoMethodSignature *signature = mono_method_signature (method);
2916         MonoVTable *vtable;
2917         int i;
2918
2919 #ifdef MONO_ARCH_HAVE_LMF_OPS
2920         if (((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2921                  (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) &&
2922             !MONO_TYPE_ISSTRUCT (signature->ret) && !mini_class_is_system_array (method->klass))
2923                 return TRUE;
2924 #endif
2925
2926         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2927             (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2928             (method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING) ||
2929             (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) ||
2930             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2931             (method->klass->marshalbyref) ||
2932             !header || header->num_clauses ||
2933             /* fixme: why cant we inline valuetype returns? */
2934             MONO_TYPE_ISSTRUCT (signature->ret))
2935                 return FALSE;
2936
2937         /* its not worth to inline methods with valuetype arguments?? */
2938         for (i = 0; i < signature->param_count; i++) {
2939                 if (MONO_TYPE_ISSTRUCT (signature->params [i])) {
2940                         return FALSE;
2941                 }
2942         }
2943
2944         /*
2945          * if we can initialize the class of the method right away, we do,
2946          * otherwise we don't allow inlining if the class needs initialization,
2947          * since it would mean inserting a call to mono_runtime_class_init()
2948          * inside the inlined code
2949          */
2950         if (!(cfg->opt & MONO_OPT_SHARED)) {
2951                 vtable = mono_class_vtable (cfg->domain, method->klass);
2952                 if (method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) {
2953                         if (cfg->run_cctors) {
2954                                 /* This makes so that inline cannot trigger */
2955                                 /* .cctors: too many apps depend on them */
2956                                 /* running with a specific order... */
2957                                 if (! vtable->initialized)
2958                                         return FALSE;
2959                                 mono_runtime_class_init (vtable);
2960                         }
2961                 }
2962                 else if (!vtable->initialized && mono_class_needs_cctor_run (method->klass, NULL))
2963                         return FALSE;
2964         } else {
2965                 /*
2966                  * If we're compiling for shared code
2967                  * the cctor will need to be run at aot method load time, for example,
2968                  * or at the end of the compilation of the inlining method.
2969                  */
2970                 if (mono_class_needs_cctor_run (method->klass, NULL) && !((method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2971                         return FALSE;
2972         }
2973         //if (!MONO_TYPE_IS_VOID (signature->ret)) return FALSE;
2974
2975         /*
2976          * CAS - do not inline methods with declarative security
2977          * Note: this has to be before any possible return TRUE;
2978          */
2979         if (mono_method_has_declsec (method))
2980                 return FALSE;
2981
2982         /* also consider num_locals? */
2983         if (getenv ("MONO_INLINELIMIT")) {
2984                 if (header->code_size < atoi (getenv ("MONO_INLINELIMIT"))) {
2985                         return TRUE;
2986                 }
2987         } else if (header->code_size < INLINE_LENGTH_LIMIT)
2988                 return TRUE;
2989
2990         return FALSE;
2991 }
2992
2993 static gboolean
2994 mini_field_access_needs_cctor_run (MonoCompile *cfg, MonoMethod *method, MonoVTable *vtable)
2995 {
2996         if (vtable->initialized && !cfg->compile_aot)
2997                 return FALSE;
2998
2999         if (vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)
3000                 return FALSE;
3001
3002         if (!mono_class_needs_cctor_run (vtable->klass, method))
3003                 return FALSE;
3004
3005         if (! (method->flags & METHOD_ATTRIBUTE_STATIC) && (vtable->klass == method->klass))
3006                 /* The initialization is already done before the method is called */
3007                 return FALSE;
3008
3009         return TRUE;
3010 }
3011
3012 static MonoInst*
3013 mini_get_ldelema_ins (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *cmethod, MonoInst **sp, unsigned char *ip, gboolean is_set)
3014 {
3015         int temp, rank;
3016         MonoInst *addr;
3017         MonoMethodSignature *esig;
3018         char icall_name [256];
3019         char *name;
3020         MonoJitICallInfo *info;
3021
3022         rank = mono_method_signature (cmethod)->param_count - (is_set? 1: 0);
3023
3024         if (rank == 1) {
3025                 MONO_INST_NEW (cfg, addr, CEE_LDELEMA);
3026                 addr->inst_left = sp [0];
3027                 addr->inst_right = sp [1];
3028                 addr->cil_code = ip;
3029                 addr->type = STACK_MP;
3030                 addr->klass = cmethod->klass->element_class;
3031                 return addr;
3032         }
3033
3034         if (rank == 2 && (cfg->opt & MONO_OPT_INTRINS)) {
3035 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3036                 /* OP_LDELEMA2D depends on OP_LMUL */
3037 #else
3038                 MonoInst *indexes;
3039                 NEW_GROUP (cfg, indexes, sp [1], sp [2]);
3040                 MONO_INST_NEW (cfg, addr, OP_LDELEMA2D);
3041                 addr->inst_left = sp [0];
3042                 addr->inst_right = indexes;
3043                 addr->cil_code = ip;
3044                 addr->type = STACK_MP;
3045                 addr->klass = cmethod->klass;
3046                 return addr;
3047 #endif
3048         }
3049
3050         /* Need to register the icall so it gets an icall wrapper */
3051         sprintf (icall_name, "ves_array_element_address_%d", rank);
3052
3053         info = mono_find_jit_icall_by_name (icall_name);
3054         if (info == NULL) {
3055                 esig = mono_get_element_address_signature (rank);
3056                 name = g_strdup (icall_name);
3057                 info = mono_register_jit_icall (ves_array_element_address, name, esig, FALSE);
3058
3059                 mono_jit_lock ();
3060                 g_hash_table_insert (jit_icall_name_hash, name, name);
3061                 mono_jit_unlock ();
3062         }
3063
3064         temp = mono_emit_native_call (cfg, bblock, mono_icall_get_wrapper (info), info->sig, sp, ip, FALSE, FALSE);
3065         cfg->flags |= MONO_CFG_HAS_VARARGS;
3066
3067         NEW_TEMPLOAD (cfg, addr, temp);
3068         return addr;
3069 }
3070
3071 MonoJitICallInfo **emul_opcode_map = NULL;
3072
3073 MonoJitICallInfo *
3074 mono_find_jit_opcode_emulation (int opcode)
3075 {
3076         if  (emul_opcode_map)
3077                 return emul_opcode_map [opcode];
3078         else
3079                 return NULL;
3080 }
3081
3082 static MonoInst*
3083 mini_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
3084 {
3085         MonoInst *ins = NULL;
3086
3087         static MonoClass *runtime_helpers_class = NULL;
3088         if (! runtime_helpers_class)
3089                 runtime_helpers_class = mono_class_from_name (mono_defaults.corlib,
3090                         "System.Runtime.CompilerServices", "RuntimeHelpers");
3091
3092         if (cmethod->klass == mono_defaults.string_class) {
3093                 if (strcmp (cmethod->name, "get_Chars") == 0) {
3094                         MONO_INST_NEW (cfg, ins, OP_GETCHR);
3095                         ins->inst_i0 = args [0];
3096                         ins->inst_i1 = args [1];
3097                         return ins;
3098                 } else if (strcmp (cmethod->name, "get_Length") == 0) {
3099                         MONO_INST_NEW (cfg, ins, OP_STRLEN);
3100                         ins->inst_i0 = args [0];
3101                         return ins;
3102                 } else if (strcmp (cmethod->name, "InternalSetChar") == 0) {
3103                         MonoInst *get_addr;
3104                         MONO_INST_NEW (cfg, get_addr, OP_STR_CHAR_ADDR);
3105                         get_addr->inst_i0 = args [0];
3106                         get_addr->inst_i1 = args [1];
3107                         MONO_INST_NEW (cfg, ins, CEE_STIND_I2);
3108                         ins->inst_i0 = get_addr;
3109                         ins->inst_i1 = args [2];
3110                         return ins;
3111                 } else
3112                         return NULL;
3113         } else if (cmethod->klass == mono_defaults.object_class) {
3114                 if (strcmp (cmethod->name, "GetType") == 0) {
3115                         MONO_INST_NEW (cfg, ins, OP_GETTYPE);
3116                         ins->inst_i0 = args [0];
3117                         return ins;
3118                 /* The OP_GETHASHCODE rule depends on OP_MUL */
3119 #if !defined(MONO_ARCH_EMULATE_MUL_DIV) && !defined(HAVE_MOVING_COLLECTOR)
3120                 } else if (strcmp (cmethod->name, "InternalGetHashCode") == 0) {
3121                         MONO_INST_NEW (cfg, ins, OP_GETHASHCODE);
3122                         ins->inst_i0 = args [0];
3123                         return ins;
3124 #endif
3125                 } else if (strcmp (cmethod->name, ".ctor") == 0) {
3126                         MONO_INST_NEW (cfg, ins, CEE_NOP);
3127                         return ins;
3128                 } else
3129                         return NULL;
3130         } else if (cmethod->klass == mono_defaults.array_class) {
3131                 if (cmethod->name [0] != 'g')
3132                         return NULL;
3133
3134                 if (strcmp (cmethod->name, "get_Rank") == 0) {
3135                         MONO_INST_NEW (cfg, ins, OP_ARRAY_RANK);
3136                         ins->inst_i0 = args [0];
3137                         return ins;
3138                 } else if (strcmp (cmethod->name, "get_Length") == 0) {
3139                         MONO_INST_NEW (cfg, ins, CEE_LDLEN);
3140                         ins->inst_i0 = args [0];
3141                         return ins;
3142                 } else
3143                         return NULL;
3144         } else if (cmethod->klass == runtime_helpers_class) {
3145                 if (strcmp (cmethod->name, "get_OffsetToStringData") == 0) {
3146                         NEW_ICONST (cfg, ins, G_STRUCT_OFFSET (MonoString, chars));
3147                         return ins;
3148                 } else
3149                         return NULL;
3150         } else if (cmethod->klass == mono_defaults.thread_class) {
3151                 if (strcmp (cmethod->name, "get_CurrentThread") == 0 && (ins = mono_arch_get_thread_intrinsic (cfg)))
3152                         return ins;
3153         } else if (mini_class_is_system_array (cmethod->klass) &&
3154                         strcmp (cmethod->name, "GetGenericValueImpl") == 0) {
3155                 MonoInst *sp [2];
3156                 MonoInst *ldelem, *store, *load;
3157                 MonoClass *eklass = mono_class_from_mono_type (fsig->params [1]);
3158                 int n;
3159                 n = mono_type_to_stind (&eklass->byval_arg);
3160                 if (n == CEE_STOBJ)
3161                         return NULL;
3162                 sp [0] = args [0];
3163                 sp [1] = args [1];
3164                 NEW_LDELEMA (cfg, ldelem, sp, eklass);
3165                 ldelem->flags |= MONO_INST_NORANGECHECK;
3166                 MONO_INST_NEW (cfg, store, n);
3167                 n = mono_type_to_ldind (&eklass->byval_arg);
3168                 MONO_INST_NEW (cfg, load, mono_type_to_ldind (&eklass->byval_arg));
3169                 type_to_eval_stack_type (&eklass->byval_arg, load);
3170                 load->inst_left = ldelem;
3171                 store->inst_left = args [2];
3172                 store->inst_right = load;
3173                 return store;
3174         }
3175
3176         return mono_arch_get_inst_for_method (cfg, cmethod, fsig, args);
3177 }
3178
3179 static void
3180 mono_save_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig, MonoInst **sp, MonoInst **args)
3181 {
3182         MonoInst *store, *temp;
3183         int i;
3184
3185         g_assert (!MONO_TYPE_ISSTRUCT (sig->ret));
3186
3187         if (!sig->hasthis && sig->param_count == 0)
3188                 return;
3189
3190         if (sig->hasthis) {
3191                 if (sp [0]->opcode == OP_ICONST) {
3192                         *args++ = sp [0];
3193                 } else {
3194                         temp = mono_compile_create_var (cfg, type_from_stack_type (*sp), OP_LOCAL);
3195                         *args++ = temp;
3196                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
3197                         store->cil_code = sp [0]->cil_code;
3198                         MONO_ADD_INS (bblock, store);
3199                 }
3200                 sp++;
3201         }
3202
3203         for (i = 0; i < sig->param_count; ++i) {
3204                 if (sp [0]->opcode == OP_ICONST) {
3205                         *args++ = sp [0];
3206                 } else {
3207                         temp = mono_compile_create_var (cfg, sig->params [i], OP_LOCAL);
3208                         *args++ = temp;
3209                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
3210                         store->cil_code = sp [0]->cil_code;
3211                         if (store->opcode == CEE_STOBJ) {
3212                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
3213                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, temp->klass, FALSE, FALSE, FALSE);
3214                         } else {
3215                                 MONO_ADD_INS (bblock, store);
3216                         }
3217                 }
3218                 sp++;
3219         }
3220 }
3221 #define MONO_INLINE_CALLED_LIMITED_METHODS 0
3222 #define MONO_INLINE_CALLER_LIMITED_METHODS 0
3223
3224 #if (MONO_INLINE_CALLED_LIMITED_METHODS)
3225 static char*
3226 mono_inline_called_method_name_limit = NULL;
3227 static gboolean check_inline_called_method_name_limit (MonoMethod *called_method) {
3228         char *called_method_name = mono_method_full_name (called_method, TRUE);
3229         int strncmp_result;
3230
3231         if (mono_inline_called_method_name_limit == NULL) {
3232                 char *limit_string = getenv ("MONO_INLINE_CALLED_METHOD_NAME_LIMIT");
3233                 if (limit_string != NULL) {
3234                         mono_inline_called_method_name_limit = limit_string;
3235                 } else {
3236                         mono_inline_called_method_name_limit = (char *) "";
3237                 }
3238         }
3239
3240         strncmp_result = strncmp (called_method_name, mono_inline_called_method_name_limit, strlen (mono_inline_called_method_name_limit));
3241         g_free (called_method_name);
3242
3243         //return (strncmp_result <= 0);
3244         return (strncmp_result == 0);
3245 }
3246 #endif
3247
3248 #if (MONO_INLINE_CALLER_LIMITED_METHODS)
3249 static char*
3250 mono_inline_caller_method_name_limit = NULL;
3251 static gboolean check_inline_caller_method_name_limit (MonoMethod *caller_method) {
3252         char *caller_method_name = mono_method_full_name (caller_method, TRUE);
3253         int strncmp_result;
3254
3255         if (mono_inline_caller_method_name_limit == NULL) {
3256                 char *limit_string = getenv ("MONO_INLINE_CALLER_METHOD_NAME_LIMIT");
3257                 if (limit_string != NULL) {
3258                         mono_inline_caller_method_name_limit = limit_string;
3259                 } else {
3260                         mono_inline_caller_method_name_limit = (char *) "";
3261                 }
3262         }
3263
3264         strncmp_result = strncmp (caller_method_name, mono_inline_caller_method_name_limit, strlen (mono_inline_caller_method_name_limit));
3265         g_free (caller_method_name);
3266
3267         //return (strncmp_result <= 0);
3268         return (strncmp_result == 0);
3269 }
3270 #endif
3271
3272 static int
3273 inline_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoBasicBlock *bblock, MonoInst **sp,
3274                 guchar *ip, guint real_offset, GList *dont_inline, MonoBasicBlock **last_b, gboolean inline_allways)
3275 {
3276         MonoInst *ins, *rvar = NULL;
3277         MonoMethodHeader *cheader;
3278         MonoBasicBlock *ebblock, *sbblock;
3279         int i, costs, new_locals_offset;
3280         MonoMethod *prev_inlined_method;
3281 #if (MONO_INLINE_CALLED_LIMITED_METHODS)
3282         if ((! inline_allways) && ! check_inline_called_method_name_limit (cmethod))
3283                 return 0;
3284 #endif
3285 #if (MONO_INLINE_CALLER_LIMITED_METHODS)
3286         if ((! inline_allways) && ! check_inline_caller_method_name_limit (cfg->method))
3287                 return 0;
3288 #endif
3289
3290         if (cfg->verbose_level > 2)
3291                 g_print ("INLINE START %p %s -> %s\n", cmethod,  mono_method_full_name (cfg->method, TRUE), mono_method_full_name (cmethod, TRUE));
3292
3293         if (!cmethod->inline_info) {
3294                 mono_jit_stats.inlineable_methods++;
3295                 cmethod->inline_info = 1;
3296         }
3297         /* allocate space to store the return value */
3298         if (!MONO_TYPE_IS_VOID (fsig->ret)) {
3299                 rvar =  mono_compile_create_var (cfg, fsig->ret, OP_LOCAL);
3300         }
3301
3302         /* allocate local variables */
3303         cheader = mono_method_get_header (cmethod);
3304         new_locals_offset = cfg->num_varinfo;
3305         for (i = 0; i < cheader->num_locals; ++i)
3306                 mono_compile_create_var (cfg, cheader->locals [i], OP_LOCAL);
3307
3308         /* allocate starte and end blocks */
3309         sbblock = NEW_BBLOCK (cfg);
3310         sbblock->block_num = cfg->num_bblocks++;
3311         sbblock->real_offset = real_offset;
3312
3313         ebblock = NEW_BBLOCK (cfg);
3314         ebblock->block_num = cfg->num_bblocks++;
3315         ebblock->real_offset = real_offset;
3316
3317         prev_inlined_method = cfg->inlined_method;
3318         cfg->inlined_method = cmethod;
3319
3320         costs = mono_method_to_ir (cfg, cmethod, sbblock, ebblock, new_locals_offset, rvar, dont_inline, sp, real_offset, *ip == CEE_CALLVIRT);
3321
3322         cfg->inlined_method = prev_inlined_method;
3323
3324         if ((costs >= 0 && costs < 60) || inline_allways) {
3325                 if (cfg->verbose_level > 2)
3326                         g_print ("INLINE END %s -> %s\n", mono_method_full_name (cfg->method, TRUE), mono_method_full_name (cmethod, TRUE));
3327
3328                 mono_jit_stats.inlined_methods++;
3329
3330                 /* always add some code to avoid block split failures */
3331                 MONO_INST_NEW (cfg, ins, CEE_NOP);
3332                 MONO_ADD_INS (bblock, ins);
3333                 ins->cil_code = ip;
3334
3335                 bblock->next_bb = sbblock;
3336                 link_bblock (cfg, bblock, sbblock);
3337
3338                 if (rvar) {
3339                         NEW_TEMPLOAD (cfg, ins, rvar->inst_c0);
3340                         *sp++ = ins;
3341                 }
3342                 *last_b = ebblock;
3343                 return costs + 1;
3344         } else {
3345                 if (cfg->verbose_level > 2)
3346                         g_print ("INLINE ABORTED %s\n", mono_method_full_name (cmethod, TRUE));
3347         }
3348         return 0;
3349 }
3350
3351 /*
3352  * Some of these comments may well be out-of-date.
3353  * Design decisions: we do a single pass over the IL code (and we do bblock
3354  * splitting/merging in the few cases when it's required: a back jump to an IL
3355  * address that was not already seen as bblock starting point).
3356  * Code is validated as we go (full verification is still better left to metadata/verify.c).
3357  * Complex operations are decomposed in simpler ones right away. We need to let the
3358  * arch-specific code peek and poke inside this process somehow (except when the
3359  * optimizations can take advantage of the full semantic info of coarse opcodes).
3360  * All the opcodes of the form opcode.s are 'normalized' to opcode.
3361  * MonoInst->opcode initially is the IL opcode or some simplification of that
3362  * (OP_LOAD, OP_STORE). The arch-specific code may rearrange it to an arch-specific
3363  * opcode with value bigger than OP_LAST.
3364  * At this point the IR can be handed over to an interpreter, a dumb code generator
3365  * or to the optimizing code generator that will translate it to SSA form.
3366  *
3367  * Profiling directed optimizations.
3368  * We may compile by default with few or no optimizations and instrument the code
3369  * or the user may indicate what methods to optimize the most either in a config file
3370  * or through repeated runs where the compiler applies offline the optimizations to
3371  * each method and then decides if it was worth it.
3372  *
3373  * TODO:
3374  * * consider using an array instead of an hash table (bb_hash)
3375  */
3376
3377 #define CHECK_TYPE(ins) if (!(ins)->type) UNVERIFIED
3378 #define CHECK_STACK(num) if ((sp - stack_start) < (num)) UNVERIFIED
3379 #define CHECK_STACK_OVF(num) if (((sp - stack_start) + (num)) > header->max_stack) UNVERIFIED
3380 #define CHECK_ARG(num) if ((unsigned)(num) >= (unsigned)num_args) UNVERIFIED
3381 #define CHECK_LOCAL(num) if ((unsigned)(num) >= (unsigned)header->num_locals) UNVERIFIED
3382 #define CHECK_OPSIZE(size) if (ip + size > end) UNVERIFIED
3383 #define CHECK_UNVERIFIABLE(cfg) if (cfg->unverifiable) UNVERIFIED
3384
3385 /* offset from br.s -> br like opcodes */
3386 #define BIG_BRANCH_OFFSET 13
3387
3388 static gboolean
3389 ip_in_bb (MonoCompile *cfg, MonoBasicBlock *bb, const guint8* ip)
3390 {
3391         MonoBasicBlock *b = g_hash_table_lookup (cfg->bb_hash, ip);
3392
3393         return b == NULL || b == bb;
3394 }
3395
3396 static int
3397 get_basic_blocks (MonoCompile *cfg, GHashTable *bbhash, MonoMethodHeader* header, guint real_offset, unsigned char *start, unsigned char *end, unsigned char **pos)
3398 {
3399         unsigned char *ip = start;
3400         unsigned char *target;
3401         int i;
3402         guint cli_addr;
3403         MonoBasicBlock *bblock;
3404         const MonoOpcode *opcode;
3405
3406         while (ip < end) {
3407                 cli_addr = ip - start;
3408                 i = mono_opcode_value ((const guint8 **)&ip, end);
3409                 if (i < 0)
3410                         UNVERIFIED;
3411                 opcode = &mono_opcodes [i];
3412                 switch (opcode->argument) {
3413                 case MonoInlineNone:
3414                         ip++;
3415                         break;
3416                 case MonoInlineString:
3417                 case MonoInlineType:
3418                 case MonoInlineField:
3419                 case MonoInlineMethod:
3420                 case MonoInlineTok:
3421                 case MonoInlineSig:
3422                 case MonoShortInlineR:
3423                 case MonoInlineI:
3424                         ip += 5;
3425                         break;
3426                 case MonoInlineVar:
3427                         ip += 3;
3428                         break;
3429                 case MonoShortInlineVar:
3430                 case MonoShortInlineI:
3431                         ip += 2;
3432                         break;
3433                 case MonoShortInlineBrTarget:
3434                         target = start + cli_addr + 2 + (signed char)ip [1];
3435                         GET_BBLOCK (cfg, bbhash, bblock, target);
3436                         ip += 2;
3437                         if (ip < end)
3438                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
3439                         break;
3440                 case MonoInlineBrTarget:
3441                         target = start + cli_addr + 5 + (gint32)read32 (ip + 1);
3442                         GET_BBLOCK (cfg, bbhash, bblock, target);
3443                         ip += 5;
3444                         if (ip < end)
3445                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
3446                         break;
3447                 case MonoInlineSwitch: {
3448                         guint32 n = read32 (ip + 1);
3449                         guint32 j;
3450                         ip += 5;
3451                         cli_addr += 5 + 4 * n;
3452                         target = start + cli_addr;
3453                         GET_BBLOCK (cfg, bbhash, bblock, target);
3454
3455                         for (j = 0; j < n; ++j) {
3456                                 target = start + cli_addr + (gint32)read32 (ip);
3457                                 GET_BBLOCK (cfg, bbhash, bblock, target);
3458                                 ip += 4;
3459                         }
3460                         break;
3461                 }
3462                 case MonoInlineR:
3463                 case MonoInlineI8:
3464                         ip += 9;
3465                         break;
3466                 default:
3467                         g_assert_not_reached ();
3468                 }
3469
3470                 if (i == CEE_THROW) {
3471                         unsigned char *bb_start = ip - 1;
3472
3473                         /* Find the start of the bblock containing the throw */
3474                         bblock = NULL;
3475                         while ((bb_start >= start) && !bblock) {
3476                                 bblock = g_hash_table_lookup (bbhash, (bb_start));
3477                                 bb_start --;
3478                         }
3479                         if (bblock)
3480                                 bblock->out_of_line = 1;
3481                 }
3482         }
3483         return 0;
3484 unverified:
3485         *pos = ip;
3486         return 1;
3487 }
3488
3489 static MonoInst*
3490 emit_tree (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *ins, const guint8* ip_next)
3491 {
3492         MonoInst *store, *temp, *load;
3493
3494         if (ip_in_bb (cfg, bblock, ip_next) &&
3495                 (CODE_IS_STLOC (ip_next) || *ip_next == CEE_RET))
3496                         return ins;
3497
3498         temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
3499         temp->flags |= MONO_INST_IS_TEMP;
3500         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
3501         store->cil_code = ins->cil_code;
3502         MONO_ADD_INS (bblock, store);
3503         NEW_TEMPLOAD (cfg, load, temp->inst_c0);
3504         load->cil_code = ins->cil_code;
3505         return load;
3506 }
3507
3508 static inline MonoMethod *
3509 mini_get_method (MonoMethod *m, guint32 token, MonoClass *klass, MonoGenericContext *context)
3510 {
3511         MonoMethod *method;
3512
3513         if (m->wrapper_type != MONO_WRAPPER_NONE)
3514                 return mono_method_get_wrapper_data (m, token);
3515
3516         method = mono_get_method_full (m->klass->image, token, klass, context);
3517
3518         if (method && method->is_inflated)
3519                 method = mono_get_inflated_method (method);
3520
3521         return method;
3522 }
3523
3524 static inline MonoClass*
3525 mini_get_class (MonoMethod *method, guint32 token, MonoGenericContext *context)
3526 {
3527         MonoClass *klass;
3528
3529         if (method->wrapper_type != MONO_WRAPPER_NONE)
3530                 klass = mono_method_get_wrapper_data (method, token);
3531         else
3532                 klass = mono_class_get_full (method->klass->image, token, context);
3533         if (klass)
3534                 mono_class_init (klass);
3535         return klass;
3536 }
3537
3538 /*
3539  * Returns TRUE if the JIT should abort inlining because "callee"
3540  * is influenced by security attributes.
3541  */
3542 static
3543 gboolean check_linkdemand (MonoCompile *cfg, MonoMethod *caller, MonoMethod *callee, MonoBasicBlock *bblock, unsigned char *ip)
3544 {
3545         guint32 result;
3546
3547         if ((cfg->method != caller) && mono_method_has_declsec (callee)) {
3548                 return TRUE;
3549         }
3550
3551         result = mono_declsec_linkdemand (cfg->domain, caller, callee);
3552         if (result == MONO_JIT_SECURITY_OK)
3553                 return FALSE;
3554
3555         if (result == MONO_JIT_LINKDEMAND_ECMA) {
3556                 /* Generate code to throw a SecurityException before the actual call/link */
3557                 MonoAssembly *assembly = mono_image_get_assembly (caller->klass->image);
3558                 MonoReflectionAssembly *refass = (MonoReflectionAssembly*) mono_assembly_get_object (cfg->domain, assembly);
3559                 MonoReflectionMethod *refmet = mono_method_get_object (cfg->domain, caller, NULL);
3560                 MonoSecurityManager *secman = mono_security_manager_get_methods ();
3561                 MonoInst *args [3];
3562
3563                 NEW_ICONST (cfg, args [0], 4);
3564                 NEW_PCONST (cfg, args [1], refass);
3565                 NEW_PCONST (cfg, args [2], refmet);
3566                 mono_emit_method_call_spilled (cfg, bblock, secman->linkdemandsecurityexception, mono_method_signature (secman->linkdemandsecurityexception), args, ip, NULL);
3567         } else if (cfg->exception_type == MONO_EXCEPTION_NONE) {
3568                  /* don't hide previous results */
3569                 cfg->exception_type = MONO_EXCEPTION_SECURITY_LINKDEMAND;
3570                 cfg->exception_data = result;
3571         }
3572
3573         return FALSE;
3574 }
3575
3576 static gboolean
3577 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
3578 {
3579         GSList *tmp;
3580         if (accessing == accessed)
3581                 return TRUE;
3582         if (!accessed || !accessing)
3583                 return FALSE;
3584         for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
3585                 MonoAssemblyName *friend = tmp->data;
3586                 /* Be conservative with checks */
3587                 if (!friend->name)
3588                         continue;
3589                 if (strcmp (accessing->aname.name, friend->name))
3590                         continue;
3591                 if (friend->public_key_token [0]) {
3592                         if (!accessing->aname.public_key_token [0])
3593                                 continue;
3594                         if (strcmp ((char*)friend->public_key_token, (char*)accessing->aname.public_key_token))
3595                                 continue;
3596                 }
3597                 return TRUE;
3598         }
3599         return FALSE;
3600 }
3601
3602 /* FIXME: check visibility of type, too */
3603 static gboolean
3604 can_access_member (MonoClass *access_klass, MonoClass *member_klass, int access_level)
3605 {
3606         /* Partition I 8.5.3.2 */
3607         /* the access level values are the same for fields and methods */
3608         switch (access_level) {
3609         case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
3610                 /* same compilation unit */
3611                 return access_klass->image == member_klass->image;
3612         case FIELD_ATTRIBUTE_PRIVATE:
3613                 return access_klass == member_klass;
3614         case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
3615                 if (mono_class_has_parent (access_klass, member_klass) &&
3616                                 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
3617                         return TRUE;
3618                 return FALSE;
3619         case FIELD_ATTRIBUTE_ASSEMBLY:
3620                 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
3621         case FIELD_ATTRIBUTE_FAMILY:
3622                 if (mono_class_has_parent (access_klass, member_klass))
3623                         return TRUE;
3624                 return FALSE;
3625         case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
3626                 if (mono_class_has_parent (access_klass, member_klass))
3627                         return TRUE;
3628                 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
3629         case FIELD_ATTRIBUTE_PUBLIC:
3630                 return TRUE;
3631         }
3632         return FALSE;
3633 }
3634
3635 static gboolean
3636 can_access_field (MonoMethod *method, MonoClassField *field)
3637 {
3638         /* FIXME: check all overlapping fields */
3639         int can = can_access_member (method->klass, field->parent, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
3640         if (!can) {
3641                 MonoClass *nested = method->klass->nested_in;
3642                 while (nested) {
3643                         can = can_access_member (nested, field->parent, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
3644                         if (can)
3645                                 return TRUE;
3646                         nested = nested->nested_in;
3647                 }
3648         }
3649         return can;
3650 }
3651
3652 static gboolean
3653 can_access_method (MonoMethod *method, MonoMethod *called)
3654 {
3655         int can = can_access_member (method->klass, called->klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
3656         if (!can) {
3657                 MonoClass *nested = method->klass->nested_in;
3658                 while (nested) {
3659                         can = can_access_member (nested, called->klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
3660                         if (can)
3661                                 return TRUE;
3662                         nested = nested->nested_in;
3663                 }
3664         }
3665         /*
3666          * FIXME:
3667          * with generics calls to explicit interface implementations can be expressed
3668          * directly: the method is private, but we must allow it. This may be opening
3669          * a hole or the generics code should handle this differently.
3670          * Maybe just ensure the interface type is public.
3671          */
3672         if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
3673                 return TRUE;
3674         return can;
3675 }
3676
3677 /*
3678  * mono_method_to_ir: translates IL into basic blocks containing trees
3679  */
3680 static int
3681 mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
3682                    int locals_offset, MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
3683                    guint inline_offset, gboolean is_virtual_call)
3684 {
3685         MonoInst *zero_int32, *zero_int64, *zero_ptr, *zero_obj, *zero_r8;
3686         MonoInst *ins, **sp, **stack_start;
3687         MonoBasicBlock *bblock, *tblock = NULL, *init_localsbb = NULL;
3688         GHashTable *bbhash;
3689         MonoMethod *cmethod;
3690         MonoInst **arg_array;
3691         MonoMethodHeader *header;
3692         MonoImage *image;
3693         guint32 token, ins_flag;
3694         MonoClass *klass;
3695         MonoClass *constrained_call = NULL;
3696         unsigned char *ip, *end, *target, *err_pos;
3697         static double r8_0 = 0.0;
3698         MonoMethodSignature *sig;
3699         MonoGenericContext *generic_context = NULL;
3700         MonoGenericContainer *generic_container = NULL;
3701         MonoType **param_types;
3702         GList *bb_recheck = NULL, *tmp;
3703         int i, n, start_new_bblock, ialign;
3704         int num_calls = 0, inline_costs = 0;
3705         int breakpoint_id = 0;
3706         guint32 align;
3707         guint real_offset, num_args;
3708         MonoBoolean security, pinvoke;
3709         MonoSecurityManager* secman = NULL;
3710         MonoDeclSecurityActions actions;
3711         GSList *class_inits = NULL;
3712         gboolean dont_verify, dont_verify_stloc;
3713
3714         /* serialization and xdomain stuff may need access to private fields and methods */
3715         dont_verify = method->klass->image->assembly->corlib_internal? TRUE: FALSE;
3716         dont_verify |= method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE;
3717         dont_verify |= method->wrapper_type == MONO_WRAPPER_XDOMAIN_DISPATCH;
3718         dont_verify |= method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE; /* bug #77896 */
3719         dont_verify |= method->wrapper_type == MONO_WRAPPER_COMINTEROP;
3720
3721         /* still some type unsafety issues in marshal wrappers... (unknown is PtrToStructure) */
3722         dont_verify_stloc = method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE;
3723         dont_verify_stloc |= method->wrapper_type == MONO_WRAPPER_UNKNOWN;
3724         dont_verify_stloc |= method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED;
3725
3726         /* Not turned on yet */
3727         cfg->dont_verify_stack_merge = TRUE;
3728
3729         image = method->klass->image;
3730         header = mono_method_get_header (method);
3731         generic_container = method->generic_container;
3732         sig = mono_method_signature (method);
3733         num_args = sig->hasthis + sig->param_count;
3734         ip = (unsigned char*)header->code;
3735         end = ip + header->code_size;
3736         mono_jit_stats.cil_code_size += header->code_size;
3737
3738         if (sig->is_inflated)
3739                 generic_context = ((MonoMethodInflated *) method)->context;
3740         else if (generic_container)
3741                 generic_context = &generic_container->context;
3742
3743         g_assert (!sig->has_type_parameters);
3744
3745         if (cfg->method == method) {
3746                 real_offset = 0;
3747                 bbhash = cfg->bb_hash;
3748         } else {
3749                 real_offset = inline_offset;
3750                 bbhash = g_hash_table_new (g_direct_hash, NULL);
3751         }
3752
3753         if (cfg->verbose_level > 2)
3754                 g_print ("method to IR %s\n", mono_method_full_name (method, TRUE));
3755
3756         dont_inline = g_list_prepend (dont_inline, method);
3757         if (cfg->method == method) {
3758
3759                 if (cfg->prof_options & MONO_PROFILE_INS_COVERAGE)
3760                         cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, header->code_size);
3761
3762                 /* ENTRY BLOCK */
3763                 cfg->bb_entry = start_bblock = NEW_BBLOCK (cfg);
3764                 start_bblock->cil_code = NULL;
3765                 start_bblock->cil_length = 0;
3766                 start_bblock->block_num = cfg->num_bblocks++;
3767
3768                 /* EXIT BLOCK */
3769                 cfg->bb_exit = end_bblock = NEW_BBLOCK (cfg);
3770                 end_bblock->cil_code = NULL;
3771                 end_bblock->cil_length = 0;
3772                 end_bblock->block_num = cfg->num_bblocks++;
3773                 g_assert (cfg->num_bblocks == 2);
3774
3775                 arg_array = alloca (sizeof (MonoInst *) * num_args);
3776                 for (i = num_args - 1; i >= 0; i--)
3777                         arg_array [i] = cfg->varinfo [i];
3778
3779                 if (header->num_clauses) {
3780                         cfg->spvars = g_hash_table_new (NULL, NULL);
3781                         cfg->exvars = g_hash_table_new (NULL, NULL);
3782                 }
3783                 /* handle exception clauses */
3784                 for (i = 0; i < header->num_clauses; ++i) {
3785                         MonoBasicBlock *try_bb;
3786                         MonoExceptionClause *clause = &header->clauses [i];
3787                         GET_BBLOCK (cfg, bbhash, try_bb, ip + clause->try_offset);
3788                         try_bb->real_offset = clause->try_offset;
3789                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->handler_offset);
3790                         tblock->real_offset = clause->handler_offset;
3791                         tblock->flags |= BB_EXCEPTION_HANDLER;
3792
3793                         link_bblock (cfg, try_bb, tblock);
3794
3795                         if (*(ip + clause->handler_offset) == CEE_POP)
3796                                 tblock->flags |= BB_EXCEPTION_DEAD_OBJ;
3797
3798                         if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY ||
3799                             clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3800                                 MONO_INST_NEW (cfg, ins, OP_START_HANDLER);
3801                                 MONO_ADD_INS (tblock, ins);
3802
3803                                 /* todo: is a fault block unsafe to optimize? */
3804                                 if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
3805                                         tblock->flags |= BB_EXCEPTION_UNSAFE;
3806                         }
3807
3808
3809                         /*g_print ("clause try IL_%04x to IL_%04x handler %d at IL_%04x to IL_%04x\n", clause->try_offset, clause->try_offset + clause->try_len, clause->flags, clause->handler_offset, clause->handler_offset + clause->handler_len);
3810                           while (p < end) {
3811                           g_print ("%s", mono_disasm_code_one (NULL, method, p, &p));
3812                           }*/
3813                         /* catch and filter blocks get the exception object on the stack */
3814                         if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE ||
3815                             clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3816                                 MonoInst *load, *dummy_use;
3817
3818                                 /* mostly like handle_stack_args (), but just sets the input args */
3819                                 /* g_print ("handling clause at IL_%04x\n", clause->handler_offset); */
3820                                 tblock->in_scount = 1;
3821                                 tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
3822                                 tblock->in_stack [0] = mono_create_exvar_for_offset (cfg, clause->handler_offset);
3823                                 tblock->stack_state = mono_mempool_alloc (cfg->mempool, sizeof (MonoStackSlot));
3824                                 tblock->stack_state [0].type = STACK_OBJ;
3825                                 /* FIXME? */
3826                                 tblock->stack_state [0].klass = mono_defaults.object_class;
3827
3828                                 /*
3829                                  * Add a dummy use for the exvar so its liveness info will be
3830                                  * correct.
3831                                  */
3832                                 NEW_TEMPLOAD (cfg, load, tblock->in_stack [0]->inst_c0);
3833                                 NEW_DUMMY_USE (cfg, dummy_use, load);
3834                                 MONO_ADD_INS (tblock, dummy_use);
3835
3836                                 if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3837                                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->data.filter_offset);
3838                                         tblock->real_offset = clause->data.filter_offset;
3839                                         tblock->in_scount = 1;
3840                                         tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
3841                                         tblock->stack_state = mono_mempool_alloc (cfg->mempool, sizeof (MonoStackSlot));
3842                                         tblock->stack_state [0].type = STACK_OBJ;
3843                                         /* FIXME? */
3844                                         tblock->stack_state [0].klass = mono_defaults.object_class;
3845
3846                                         /* The filter block shares the exvar with the handler block */
3847                                         tblock->in_stack [0] = mono_create_exvar_for_offset (cfg, clause->handler_offset);
3848                                         MONO_INST_NEW (cfg, ins, OP_START_HANDLER);
3849                                         MONO_ADD_INS (tblock, ins);
3850                                 }
3851                         }
3852                 }
3853         } else {
3854                 arg_array = alloca (sizeof (MonoInst *) * num_args);
3855                 mono_save_args (cfg, start_bblock, sig, inline_args, arg_array);
3856         }
3857
3858         /* FIRST CODE BLOCK */
3859         bblock = NEW_BBLOCK (cfg);
3860         bblock->cil_code = ip;
3861
3862         ADD_BBLOCK (cfg, bbhash, bblock);
3863
3864         if (cfg->method == method) {
3865                 breakpoint_id = mono_debugger_method_has_breakpoint (method);
3866                 if (breakpoint_id && (mono_debug_format != MONO_DEBUG_FORMAT_DEBUGGER)) {
3867                         MONO_INST_NEW (cfg, ins, CEE_BREAK);
3868                         MONO_ADD_INS (bblock, ins);
3869                 }
3870         }
3871
3872         if (mono_use_security_manager)
3873                 secman = mono_security_manager_get_methods ();
3874
3875         security = (secman && mono_method_has_declsec (method));
3876         /* at this point having security doesn't mean we have any code to generate */
3877         if (security && (cfg->method == method)) {
3878                 /* Only Demand, NonCasDemand and DemandChoice requires code generation.
3879                  * And we do not want to enter the next section (with allocation) if we
3880                  * have nothing to generate */
3881                 security = mono_declsec_get_demands (method, &actions);
3882         }
3883
3884         /* we must Demand SecurityPermission.Unmanaged before P/Invoking */
3885         pinvoke = (secman && (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE));
3886         if (pinvoke) {
3887                 MonoMethod *wrapped = mono_marshal_method_from_wrapper (method);
3888                 if (wrapped && (wrapped->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3889                         MonoCustomAttrInfo* custom = mono_custom_attrs_from_method (wrapped);
3890
3891                         /* unless the method or it's class has the [SuppressUnmanagedCodeSecurity] attribute */
3892                         if (custom && mono_custom_attrs_has_attr (custom, secman->suppressunmanagedcodesecurity)) {
3893                                 pinvoke = FALSE;
3894                         }
3895
3896                         if (pinvoke) {
3897                                 custom = mono_custom_attrs_from_class (wrapped->klass);
3898                                 if (custom && mono_custom_attrs_has_attr (custom, secman->suppressunmanagedcodesecurity)) {
3899                                         pinvoke = FALSE;
3900                                 }
3901                         }
3902                 } else {
3903                         /* not a P/Invoke after all */
3904                         pinvoke = FALSE;
3905                 }
3906         }
3907
3908         if ((header->init_locals || (cfg->method == method && (cfg->opt & MONO_OPT_SHARED))) || mono_compile_aot || security || pinvoke) {
3909                 /* we use a separate basic block for the initialization code */
3910                 cfg->bb_init = init_localsbb = NEW_BBLOCK (cfg);
3911                 init_localsbb->real_offset = real_offset;
3912                 start_bblock->next_bb = init_localsbb;
3913                 init_localsbb->next_bb = bblock;
3914                 link_bblock (cfg, start_bblock, init_localsbb);
3915                 link_bblock (cfg, init_localsbb, bblock);
3916                 init_localsbb->block_num = cfg->num_bblocks++;
3917         } else {
3918                 start_bblock->next_bb = bblock;
3919                 link_bblock (cfg, start_bblock, bblock);
3920         }
3921
3922         /* at this point we know, if security is TRUE, that some code needs to be generated */
3923         if (security && (cfg->method == method)) {
3924                 MonoInst *args [2];
3925
3926                 mono_jit_stats.cas_demand_generation++;
3927
3928                 if (actions.demand.blob) {
3929                         /* Add code for SecurityAction.Demand */
3930                         NEW_DECLSECCONST (cfg, args[0], image, actions.demand);
3931                         NEW_ICONST (cfg, args [1], actions.demand.size);
3932                         /* Calls static void SecurityManager.InternalDemand (byte* permissions, int size); */
3933                         mono_emit_method_call_spilled (cfg, init_localsbb, secman->demand, mono_method_signature (secman->demand), args, ip, NULL);
3934                 }
3935                 if (actions.noncasdemand.blob) {
3936                         /* CLR 1.x uses a .noncasdemand (but 2.x doesn't) */
3937                         /* For Mono we re-route non-CAS Demand to Demand (as the managed code must deal with it anyway) */
3938                         NEW_DECLSECCONST (cfg, args[0], image, actions.noncasdemand);
3939                         NEW_ICONST (cfg, args [1], actions.noncasdemand.size);
3940                         /* Calls static void SecurityManager.InternalDemand (byte* permissions, int size); */
3941                         mono_emit_method_call_spilled (cfg, init_localsbb, secman->demand, mono_method_signature (secman->demand), args, ip, NULL);
3942                 }
3943                 if (actions.demandchoice.blob) {
3944                         /* New in 2.0, Demand must succeed for one of the permissions (i.e. not all) */
3945                         NEW_DECLSECCONST (cfg, args[0], image, actions.demandchoice);
3946                         NEW_ICONST (cfg, args [1], actions.demandchoice.size);
3947                         /* Calls static void SecurityManager.InternalDemandChoice (byte* permissions, int size); */
3948                         mono_emit_method_call_spilled (cfg, init_localsbb, secman->demandchoice, mono_method_signature (secman->demandchoice), args, ip, NULL);
3949                 }
3950         }
3951
3952         /* we must Demand SecurityPermission.Unmanaged before p/invoking */
3953         if (pinvoke) {
3954                 mono_emit_method_call_spilled (cfg, init_localsbb, secman->demandunmanaged, mono_method_signature (secman->demandunmanaged), NULL, ip, NULL);
3955         }
3956
3957         if (get_basic_blocks (cfg, bbhash, header, real_offset, ip, end, &err_pos)) {
3958                 ip = err_pos;
3959                 UNVERIFIED;
3960         }
3961
3962         if (cfg->method == method)
3963                 mono_debug_init_method (cfg, bblock, breakpoint_id);
3964
3965         param_types = mono_mempool_alloc (cfg->mempool, sizeof (MonoType*) * num_args);
3966         if (sig->hasthis)
3967                 param_types [0] = method->klass->valuetype?&method->klass->this_arg:&method->klass->byval_arg;
3968         for (n = 0; n < sig->param_count; ++n)
3969                 param_types [n + sig->hasthis] = sig->params [n];
3970         for (n = 0; n < header->num_locals; ++n) {
3971                 if (header->locals [n]->type == MONO_TYPE_VOID && !header->locals [n]->byref)
3972                         UNVERIFIED;
3973         }
3974         class_inits = NULL;
3975
3976         /* do this somewhere outside - not here */
3977         NEW_ICONST (cfg, zero_int32, 0);
3978         NEW_ICONST (cfg, zero_int64, 0);
3979         zero_int64->type = STACK_I8;
3980         NEW_PCONST (cfg, zero_ptr, 0);
3981         NEW_PCONST (cfg, zero_obj, 0);
3982         zero_obj->type = STACK_OBJ;
3983
3984         MONO_INST_NEW (cfg, zero_r8, OP_R8CONST);
3985         zero_r8->type = STACK_R8;
3986         zero_r8->inst_p0 = &r8_0;
3987
3988         /* add a check for this != NULL to inlined methods */
3989         if (is_virtual_call) {
3990                 MONO_INST_NEW (cfg, ins, OP_CHECK_THIS);
3991                 NEW_ARGLOAD (cfg, ins->inst_left, 0);
3992                 ins->cil_code = ip;
3993                 MONO_ADD_INS (bblock, ins);
3994         }
3995
3996         /* we use a spare stack slot in SWITCH and NEWOBJ and others */
3997         stack_start = sp = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * (header->max_stack + 1));
3998
3999         ins_flag = 0;
4000         start_new_bblock = 0;
4001         while (ip < end) {
4002
4003                 if (cfg->method == method)
4004                         real_offset = ip - header->code;
4005                 else
4006                         real_offset = inline_offset;
4007
4008                 if (start_new_bblock) {
4009                         bblock->cil_length = ip - bblock->cil_code;
4010                         if (start_new_bblock == 2) {
4011                                 g_assert (ip == tblock->cil_code);
4012                         } else {
4013                                 GET_BBLOCK (cfg, bbhash, tblock, ip);
4014                         }
4015                         bblock->next_bb = tblock;
4016                         bblock = tblock;
4017                         start_new_bblock = 0;
4018                         for (i = 0; i < bblock->in_scount; ++i) {
4019                                 if (cfg->verbose_level > 3)
4020                                         g_print ("loading %d from temp %d\n", i, (int)bblock->in_stack [i]->inst_c0);
4021                                 NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
4022                                 *sp++ = ins;
4023                         }
4024                         g_slist_free (class_inits);
4025                         class_inits = NULL;
4026                 } else {
4027                         if ((tblock = g_hash_table_lookup (bbhash, ip)) && (tblock != bblock)) {
4028                                 link_bblock (cfg, bblock, tblock);
4029                                 if (sp != stack_start) {
4030                                         handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4031                                         sp = stack_start;
4032                                         CHECK_UNVERIFIABLE (cfg);
4033                                 }
4034                                 bblock->next_bb = tblock;
4035                                 bblock = tblock;
4036                                 for (i = 0; i < bblock->in_scount; ++i) {
4037                                         if (cfg->verbose_level > 3)
4038                                                 g_print ("loading %d from temp %d\n", i, (int)bblock->in_stack [i]->inst_c0);
4039                                         NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
4040                                         *sp++ = ins;
4041                                 }
4042                                 g_slist_free (class_inits);
4043                                 class_inits = NULL;
4044                         }
4045                 }
4046
4047                 bblock->real_offset = real_offset;
4048
4049                 if ((cfg->method == method) && cfg->coverage_info) {
4050                         MonoInst *store, *one;
4051                         guint32 cil_offset = ip - header->code;
4052                         cfg->coverage_info->data [cil_offset].cil_code = ip;
4053
4054                         /* TODO: Use an increment here */
4055                         NEW_ICONST (cfg, one, 1);
4056                         one->cil_code = ip;
4057
4058                         NEW_PCONST (cfg, ins, &(cfg->coverage_info->data [cil_offset].count));
4059                         ins->cil_code = ip;
4060
4061                         MONO_INST_NEW (cfg, store, CEE_STIND_I);
4062                         store->cil_code = ip;
4063                         store->inst_left = ins;
4064                         store->inst_right = one;
4065
4066                         MONO_ADD_INS (bblock, store);
4067                 }
4068
4069                 if (cfg->verbose_level > 3)
4070                         g_print ("converting (in B%d: stack: %d) %s", bblock->block_num, (int)(sp - stack_start), mono_disasm_code_one (NULL, method, ip, NULL));
4071
4072                 switch (*ip) {
4073                 case CEE_NOP:
4074                 case CEE_BREAK:
4075                         MONO_INST_NEW (cfg, ins, *ip);
4076                         ins->cil_code = ip++;
4077                         MONO_ADD_INS (bblock, ins);
4078                         break;
4079                 case CEE_LDARG_0:
4080                 case CEE_LDARG_1:
4081                 case CEE_LDARG_2:
4082                 case CEE_LDARG_3:
4083                         CHECK_STACK_OVF (1);
4084                         n = (*ip)-CEE_LDARG_0;
4085                         CHECK_ARG (n);
4086                         NEW_ARGLOAD (cfg, ins, n);
4087                         ins->cil_code = ip++;
4088                         *sp++ = ins;
4089                         break;
4090                 case CEE_LDLOC_0:
4091                 case CEE_LDLOC_1:
4092                 case CEE_LDLOC_2:
4093                 case CEE_LDLOC_3:
4094                         CHECK_STACK_OVF (1);
4095                         n = (*ip)-CEE_LDLOC_0;
4096                         CHECK_LOCAL (n);
4097                         NEW_LOCLOAD (cfg, ins, n);
4098                         ins->cil_code = ip++;
4099                         *sp++ = ins;
4100                         break;
4101                 case CEE_STLOC_0:
4102                 case CEE_STLOC_1:
4103                 case CEE_STLOC_2:
4104                 case CEE_STLOC_3:
4105                         CHECK_STACK (1);
4106                         n = (*ip)-CEE_STLOC_0;
4107                         CHECK_LOCAL (n);
4108                         --sp;
4109                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4110                         NEW_LOCSTORE (cfg, ins, n, *sp);
4111                         ins->cil_code = ip;
4112                         if (!dont_verify_stloc && target_type_is_incompatible (cfg, header->locals [n], *sp))
4113                                 UNVERIFIED;
4114                         if (ins->opcode == CEE_STOBJ) {
4115                                 NEW_LOCLOADA (cfg, ins, n);
4116                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE, FALSE);
4117                         } else
4118                                 MONO_ADD_INS (bblock, ins);
4119                         ++ip;
4120                         inline_costs += 1;
4121                         break;
4122                 case CEE_LDARG_S:
4123                         CHECK_OPSIZE (2);
4124                         CHECK_STACK_OVF (1);
4125                         CHECK_ARG (ip [1]);
4126                         NEW_ARGLOAD (cfg, ins, ip [1]);
4127                         ins->cil_code = ip;
4128                         *sp++ = ins;
4129                         ip += 2;
4130                         break;
4131                 case CEE_LDARGA_S:
4132                         CHECK_OPSIZE (2);
4133                         CHECK_STACK_OVF (1);
4134                         CHECK_ARG (ip [1]);
4135                         NEW_ARGLOADA (cfg, ins, ip [1]);
4136                         ins->cil_code = ip;
4137                         *sp++ = ins;
4138                         ip += 2;
4139                         break;
4140                 case CEE_STARG_S:
4141                         CHECK_OPSIZE (2);
4142                         CHECK_STACK (1);
4143                         --sp;
4144                         CHECK_ARG (ip [1]);
4145                         NEW_ARGSTORE (cfg, ins, ip [1], *sp);
4146                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4147                         ins->cil_code = ip;
4148                         if (!dont_verify_stloc && target_type_is_incompatible (cfg, param_types [ip [1]], *sp))
4149                                 UNVERIFIED;
4150                         if (ins->opcode == CEE_STOBJ) {
4151                                 NEW_ARGLOADA (cfg, ins, ip [1]);
4152                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE, FALSE);
4153                         } else
4154                                 MONO_ADD_INS (bblock, ins);
4155                         ip += 2;
4156                         break;
4157                 case CEE_LDLOC_S:
4158                         CHECK_OPSIZE (2);
4159                         CHECK_STACK_OVF (1);
4160                         CHECK_LOCAL (ip [1]);
4161                         NEW_LOCLOAD (cfg, ins, ip [1]);
4162                         ins->cil_code = ip;
4163                         *sp++ = ins;
4164                         ip += 2;
4165                         break;
4166                 case CEE_LDLOCA_S:
4167                         CHECK_OPSIZE (2);
4168                         CHECK_STACK_OVF (1);
4169                         CHECK_LOCAL (ip [1]);
4170                         NEW_LOCLOADA (cfg, ins, ip [1]);
4171                         ins->cil_code = ip;
4172                         *sp++ = ins;
4173                         ip += 2;
4174                         break;
4175                 case CEE_STLOC_S:
4176                         CHECK_OPSIZE (2);
4177                         CHECK_STACK (1);
4178                         --sp;
4179                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4180                         CHECK_LOCAL (ip [1]);
4181                         NEW_LOCSTORE (cfg, ins, ip [1], *sp);
4182                         ins->cil_code = ip;
4183                         if (!dont_verify_stloc && target_type_is_incompatible (cfg, header->locals [ip [1]], *sp))
4184                                 UNVERIFIED;
4185                         if (ins->opcode == CEE_STOBJ) {
4186                                 NEW_LOCLOADA (cfg, ins, ip [1]);
4187                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE, FALSE);
4188                         } else
4189                                 MONO_ADD_INS (bblock, ins);
4190                         ip += 2;
4191                         inline_costs += 1;
4192                         break;
4193                 case CEE_LDNULL:
4194                         CHECK_STACK_OVF (1);
4195                         NEW_PCONST (cfg, ins, NULL);
4196                         ins->cil_code = ip;
4197                         ins->type = STACK_OBJ;
4198                         ++ip;
4199                         *sp++ = ins;
4200                         break;
4201                 case CEE_LDC_I4_M1:
4202                         CHECK_STACK_OVF (1);
4203                         NEW_ICONST (cfg, ins, -1);
4204                         ins->cil_code = ip;
4205                         ++ip;
4206                         *sp++ = ins;
4207                         break;
4208                 case CEE_LDC_I4_0:
4209                 case CEE_LDC_I4_1:
4210                 case CEE_LDC_I4_2:
4211                 case CEE_LDC_I4_3:
4212                 case CEE_LDC_I4_4:
4213                 case CEE_LDC_I4_5:
4214                 case CEE_LDC_I4_6:
4215                 case CEE_LDC_I4_7:
4216                 case CEE_LDC_I4_8:
4217                         CHECK_STACK_OVF (1);
4218                         NEW_ICONST (cfg, ins, (*ip) - CEE_LDC_I4_0);
4219                         ins->cil_code = ip;
4220                         ++ip;
4221                         *sp++ = ins;
4222                         break;
4223                 case CEE_LDC_I4_S:
4224                         CHECK_OPSIZE (2);
4225                         CHECK_STACK_OVF (1);
4226                         ++ip;
4227                         NEW_ICONST (cfg, ins, *((signed char*)ip));
4228                         ins->cil_code = ip;
4229                         ++ip;
4230                         *sp++ = ins;
4231                         break;
4232                 case CEE_LDC_I4:
4233                         CHECK_OPSIZE (5);
4234                         CHECK_STACK_OVF (1);
4235                         NEW_ICONST (cfg, ins, (gint32)read32 (ip + 1));
4236                         ins->cil_code = ip;
4237                         ip += 5;
4238                         *sp++ = ins;
4239                         break;
4240                 case CEE_LDC_I8:
4241                         CHECK_OPSIZE (9);
4242                         CHECK_STACK_OVF (1);
4243                         MONO_INST_NEW (cfg, ins, OP_I8CONST);
4244                         ins->cil_code = ip;
4245                         ins->type = STACK_I8;
4246                         ++ip;
4247                         ins->inst_l = (gint64)read64 (ip);
4248                         ip += 8;
4249                         *sp++ = ins;
4250                         break;
4251                 case CEE_LDC_R4: {
4252                         float *f;
4253                         /* we should really allocate this only late in the compilation process */
4254                         mono_domain_lock (cfg->domain);
4255                         f = mono_mempool_alloc (cfg->domain->mp, sizeof (float));
4256                         mono_domain_unlock (cfg->domain);
4257                         CHECK_OPSIZE (5);
4258                         CHECK_STACK_OVF (1);
4259                         MONO_INST_NEW (cfg, ins, OP_R4CONST);
4260                         ins->type = STACK_R8;
4261                         ++ip;
4262                         readr4 (ip, f);
4263                         ins->inst_p0 = f;
4264
4265                         ip += 4;
4266                         *sp++ = ins;
4267                         break;
4268                 }
4269                 case CEE_LDC_R8: {
4270                         double *d;
4271                         mono_domain_lock (cfg->domain);
4272                         d = mono_mempool_alloc (cfg->domain->mp, sizeof (double));
4273                         mono_domain_unlock (cfg->domain);
4274                         CHECK_OPSIZE (9);
4275                         CHECK_STACK_OVF (1);
4276                         MONO_INST_NEW (cfg, ins, OP_R8CONST);
4277                         ins->type = STACK_R8;
4278                         ++ip;
4279                         readr8 (ip, d);
4280                         ins->inst_p0 = d;
4281
4282                         ip += 8;
4283                         *sp++ = ins;
4284                         break;
4285                 }
4286                 case CEE_DUP: {
4287                         MonoInst *temp, *store;
4288                         CHECK_STACK (1);
4289                         CHECK_STACK_OVF (1);
4290                         sp--;
4291                         ins = *sp;
4292
4293                         /*
4294                          * small optimization: if the loaded value was from a local already,
4295                          * just load it twice.
4296                          */
4297                         if (ins->ssa_op == MONO_SSA_LOAD &&
4298                             (ins->inst_i0->opcode == OP_LOCAL || ins->inst_i0->opcode == OP_ARG)) {
4299                                 sp++;
4300                                 MONO_INST_NEW (cfg, temp, 0);
4301                                 *temp = *ins;
4302                                 temp->cil_code = ip;
4303                                 *sp++ = temp;
4304                         } else {
4305                                 temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
4306                                 temp->flags |= MONO_INST_IS_TEMP;
4307                                 temp->cil_code = ip;
4308                                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
4309                                 store->cil_code = ip;
4310                                 if (store->opcode == CEE_STOBJ) {
4311                                         NEW_TEMPLOADA (cfg, store, temp->inst_c0);
4312                                         handle_stobj (cfg, bblock, store, sp [0], sp [0]->cil_code, store->klass, TRUE, FALSE, FALSE);
4313                                 } else {
4314                                         MONO_ADD_INS (bblock, store);
4315                                 }
4316                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
4317                                 *sp++ = ins;
4318                                 ins->cil_code = ip;
4319                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
4320                                 *sp++ = ins;
4321                                 ins->cil_code = ip;
4322                         }
4323                         ++ip;
4324                         inline_costs += 2;
4325                         break;
4326                 }
4327                 case CEE_POP:
4328                         CHECK_STACK (1);
4329                         MONO_INST_NEW (cfg, ins, CEE_POP);
4330                         MONO_ADD_INS (bblock, ins);
4331                         ins->cil_code = ip++;
4332                         --sp;
4333                         ins->inst_i0 = *sp;
4334                         break;
4335                 case CEE_JMP:
4336                         CHECK_OPSIZE (5);
4337                         if (stack_start != sp)
4338                                 UNVERIFIED;
4339                         MONO_INST_NEW (cfg, ins, CEE_JMP);
4340                         token = read32 (ip + 1);
4341                         /* FIXME: check the signature matches */
4342                         cmethod = mini_get_method (method, token, NULL, generic_context);
4343
4344                         if (!cmethod)
4345                                 goto load_error;
4346
4347                         if (mono_use_security_manager) {
4348                                 if (check_linkdemand (cfg, method, cmethod, bblock, ip))
4349                                         INLINE_FAILURE;
4350                         }
4351
4352                         ins->inst_p0 = cmethod;
4353                         MONO_ADD_INS (bblock, ins);
4354                         ip += 5;
4355                         start_new_bblock = 1;
4356                         break;
4357                 case CEE_CALLI:
4358                 case CEE_CALL:
4359                 case CEE_CALLVIRT: {
4360                         MonoInst *addr = NULL;
4361                         MonoMethodSignature *fsig = NULL;
4362                         int temp, array_rank = 0;
4363                         int virtual = *ip == CEE_CALLVIRT;
4364
4365                         CHECK_OPSIZE (5);
4366                         token = read32 (ip + 1);
4367
4368                         if (*ip == CEE_CALLI) {
4369                                 cmethod = NULL;
4370                                 CHECK_STACK (1);
4371                                 --sp;
4372                                 addr = *sp;
4373                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
4374                                         fsig = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
4375                                 else
4376                                         fsig = mono_metadata_parse_signature (image, token);
4377
4378                                 n = fsig->param_count + fsig->hasthis;
4379                         } else {
4380                                 if (method->wrapper_type != MONO_WRAPPER_NONE) {
4381                                         cmethod =  (MonoMethod *)mono_method_get_wrapper_data (method, token);
4382                                 } else if (constrained_call) {
4383                                         cmethod = mono_get_method_constrained (image, token, constrained_call, generic_context);
4384                                         cmethod = mono_get_inflated_method (cmethod);
4385                                 } else {
4386                                         cmethod = mini_get_method (method, token, NULL, generic_context);
4387                                 }
4388
4389                                 if (!cmethod)
4390                                         goto load_error;
4391                                 if (!dont_verify && !can_access_method (method, cmethod))
4392                                         UNVERIFIED;
4393
4394                                 if (!virtual && (cmethod->flags & METHOD_ATTRIBUTE_ABSTRACT))
4395                                         /* MS.NET seems to silently convert this to a callvirt */
4396                                         virtual = 1;
4397
4398                                 if (!cmethod->klass->inited){
4399                                         if (!mono_class_init (cmethod->klass))
4400                                                 goto load_error;
4401                                 }
4402
4403                                 if (mono_method_signature (cmethod)->pinvoke) {
4404                                         MonoMethod *wrapper = mono_marshal_get_native_wrapper (cmethod);
4405                                         fsig = mono_method_signature (wrapper);
4406                                 } else if (constrained_call) {
4407                                         fsig = mono_method_signature (cmethod);
4408                                 } else {
4409                                         fsig = mono_method_get_signature_full (cmethod, image, token, generic_context);
4410                                 }
4411
4412                                 n = fsig->param_count + fsig->hasthis;
4413
4414                                 if (mono_use_security_manager) {
4415                                         if (check_linkdemand (cfg, method, cmethod, bblock, ip))
4416                                                 INLINE_FAILURE;
4417                                 }
4418
4419                                 if (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL &&
4420                                     mini_class_is_system_array (cmethod->klass)) {
4421                                         array_rank = cmethod->klass->rank;
4422                                 }
4423
4424                                 if (cmethod->string_ctor)
4425                                         g_assert_not_reached ();
4426
4427                         }
4428
4429                         if (cmethod && cmethod->klass->generic_container)
4430                                 UNVERIFIED;
4431
4432                         CHECK_STACK (n);
4433
4434                         //g_assert (!virtual || fsig->hasthis);
4435
4436                         sp -= n;
4437
4438                         if (constrained_call) {
4439                                 /*
4440                                  * We have the `constrained.' prefix opcode.
4441                                  */
4442                                 if (constrained_call->valuetype && !cmethod->klass->valuetype) {
4443                                         MonoInst *load;
4444                                         /*
4445                                          * The type parameter is instantiated as a valuetype,
4446                                          * but that type doesn't override the method we're
4447                                          * calling, so we need to box `this'.
4448                                          * sp [0] is a pointer to the data: we need the value
4449                                          * in handle_box (), so load it here.
4450                                          */
4451                                         MONO_INST_NEW (cfg, load, mono_type_to_ldind (&constrained_call->byval_arg));
4452                                         type_to_eval_stack_type (&constrained_call->byval_arg, load);
4453                                         load->cil_code = ip;
4454                                         load->inst_left = sp [0];
4455                                         sp [0] = handle_box (cfg, bblock, load, ip, constrained_call);
4456                                 } else if (!constrained_call->valuetype) {
4457                                         MonoInst *ins;
4458
4459                                         /*
4460                                          * The type parameter is instantiated as a reference
4461                                          * type.  We have a managed pointer on the stack, so
4462                                          * we need to dereference it here.
4463                                          */
4464
4465                                         MONO_INST_NEW (cfg, ins, CEE_LDIND_REF);
4466                                         ins->cil_code = ip;
4467                                         ins->inst_i0 = sp [0];
4468                                         ins->type = STACK_OBJ;
4469                                         ins->klass = mono_class_from_mono_type (&constrained_call->byval_arg);
4470                                         sp [0] = ins;
4471                                 } else if (cmethod->klass->valuetype)
4472                                         virtual = 0;
4473                                 constrained_call = NULL;
4474                         }
4475
4476                         if (*ip != CEE_CALLI && check_call_signature (cfg, fsig, sp))
4477                                 UNVERIFIED;
4478
4479                         if (cmethod && virtual &&
4480                             (cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) &&
4481                             !((cmethod->flags & METHOD_ATTRIBUTE_FINAL) &&
4482                               cmethod->wrapper_type != MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK) &&
4483                             mono_method_signature (cmethod)->generic_param_count) {
4484                                 MonoInst *this_temp, *store;
4485                                 MonoInst *iargs [3];
4486
4487                                 g_assert (mono_method_signature (cmethod)->is_inflated);
4488                                 /* Prevent inlining of methods that contain indirect calls */
4489                                 INLINE_FAILURE;
4490
4491                                 this_temp = mono_compile_create_var (cfg, type_from_stack_type (sp [0]), OP_LOCAL);
4492                                 this_temp->cil_code = ip;
4493                                 NEW_TEMPSTORE (cfg, store, this_temp->inst_c0, sp [0]);
4494
4495                                 store->cil_code = ip;
4496                                 MONO_ADD_INS (bblock, store);
4497
4498                                 NEW_TEMPLOAD (cfg, iargs [0], this_temp->inst_c0);
4499                                 NEW_PCONST (cfg, iargs [1], cmethod);
4500                                 NEW_PCONST (cfg, iargs [2], ((MonoMethodInflated *) cmethod)->context);
4501                                 temp = mono_emit_jit_icall (cfg, bblock, mono_helper_compile_generic_method, iargs, ip);
4502
4503                                 NEW_TEMPLOAD (cfg, addr, temp);
4504                                 NEW_TEMPLOAD (cfg, sp [0], this_temp->inst_c0);
4505
4506                                 if ((temp = mono_emit_calli (cfg, bblock, fsig, sp, addr, ip)) != -1) {
4507                                         NEW_TEMPLOAD (cfg, *sp, temp);
4508                                         sp++;
4509                                 }
4510
4511                                 ip += 5;
4512                                 ins_flag = 0;
4513                                 break;
4514                         }
4515
4516                         if ((ins_flag & MONO_INST_TAILCALL) && cmethod && (*ip == CEE_CALL) &&
4517                                  (mono_metadata_signature_equal (mono_method_signature (method), mono_method_signature (cmethod)))) {
4518                                 int i;
4519
4520                                 /* Prevent inlining of methods with tail calls (the call stack would be altered) */
4521                                 INLINE_FAILURE;
4522                                 /* FIXME: This assumes the two methods has the same number and type of arguments */
4523                                 for (i = 0; i < n; ++i) {
4524                                         /* Check if argument is the same */
4525                                         NEW_ARGLOAD (cfg, ins, i);
4526                                         if ((ins->opcode == sp [i]->opcode) && (ins->inst_i0 == sp [i]->inst_i0))
4527                                                 continue;
4528
4529                                         /* Prevent argument from being register allocated */
4530                                         arg_array [i]->flags |= MONO_INST_VOLATILE;
4531                                         NEW_ARGSTORE (cfg, ins, i, sp [i]);
4532                                         ins->cil_code = ip;
4533                                         if (ins->opcode == CEE_STOBJ) {
4534                                                 NEW_ARGLOADA (cfg, ins, i);
4535                                                 handle_stobj (cfg, bblock, ins, sp [i], sp [i]->cil_code, ins->klass, FALSE, FALSE, FALSE);
4536                                         }
4537                                         else
4538                                                 MONO_ADD_INS (bblock, ins);
4539                                 }
4540                                 MONO_INST_NEW (cfg, ins, CEE_JMP);
4541                                 ins->cil_code = ip;
4542                                 ins->inst_p0 = cmethod;
4543                                 ins->inst_p1 = arg_array [0];
4544                                 MONO_ADD_INS (bblock, ins);
4545                                 link_bblock (cfg, bblock, end_bblock);
4546                                 start_new_bblock = 1;
4547                                 /* skip CEE_RET as well */
4548                                 ip += 6;
4549                                 ins_flag = 0;
4550                                 break;
4551                         }
4552                         if (cmethod && (cfg->opt & MONO_OPT_INTRINS) && (ins = mini_get_inst_for_method (cfg, cmethod, fsig, sp))) {
4553                                 ins->cil_code = ip;
4554
4555                                 if (MONO_TYPE_IS_VOID (fsig->ret)) {
4556                                         MONO_ADD_INS (bblock, ins);
4557                                 } else {
4558                                         type_to_eval_stack_type (fsig->ret, ins);
4559                                         *sp = ins;
4560                                         sp++;
4561                                 }
4562
4563                                 ip += 5;
4564                                 ins_flag = 0;
4565                                 break;
4566                         }
4567
4568                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4569
4570                         if ((cfg->opt & MONO_OPT_INLINE) && cmethod &&
4571                             (!virtual || !(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) || (cmethod->flags & METHOD_ATTRIBUTE_FINAL)) &&
4572                             mono_method_check_inlining (cfg, cmethod) &&
4573                                  !g_list_find (dont_inline, cmethod)) {
4574                                 int costs;
4575                                 MonoBasicBlock *ebblock;
4576                                 gboolean allways = FALSE;
4577
4578                                 if ((cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4579                                         (cmethod->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4580                                         /* Prevent inlining of methods that call wrappers */
4581                                         INLINE_FAILURE;
4582                                         cmethod = mono_marshal_get_native_wrapper (cmethod);
4583                                         allways = TRUE;
4584                                 }
4585
4586                                 if ((costs = inline_method (cfg, cmethod, fsig, bblock, sp, ip, real_offset, dont_inline, &ebblock, allways))) {
4587                                         ip += 5;
4588                                         real_offset += 5;
4589
4590                                         GET_BBLOCK (cfg, bbhash, bblock, ip);
4591                                         ebblock->next_bb = bblock;
4592                                         link_bblock (cfg, ebblock, bblock);
4593
4594                                         if (!MONO_TYPE_IS_VOID (fsig->ret))
4595                                                 sp++;
4596
4597                                         /* indicates start of a new block, and triggers a load of all
4598                                            stack arguments at bb boundarie */
4599                                         bblock = ebblock;
4600
4601                                         inline_costs += costs;
4602                                         ins_flag = 0;
4603                                         break;
4604                                 }
4605                         }
4606
4607                         inline_costs += 10 * num_calls++;
4608
4609                         /* tail recursion elimination */
4610                         if ((cfg->opt & MONO_OPT_TAILC) && *ip == CEE_CALL && cmethod == method && ip [5] == CEE_RET) {
4611                                 gboolean has_vtargs = FALSE;
4612                                 int i;
4613
4614                                 /* Prevent inlining of methods with tail calls (the call stack would be altered) */
4615                                 INLINE_FAILURE;
4616                                 /* keep it simple */
4617                                 for (i =  fsig->param_count - 1; i >= 0; i--) {
4618                                         if (MONO_TYPE_ISSTRUCT (mono_method_signature (cmethod)->params [i]))
4619                                                 has_vtargs = TRUE;
4620                                 }
4621
4622                                 if (!has_vtargs) {
4623                                         for (i = 0; i < n; ++i) {
4624                                                 NEW_ARGSTORE (cfg, ins, i, sp [i]);
4625                                                 ins->cil_code = ip;
4626                                                 MONO_ADD_INS (bblock, ins);
4627                                         }
4628                                         MONO_INST_NEW (cfg, ins, CEE_BR);
4629                                         ins->cil_code = ip;
4630                                         MONO_ADD_INS (bblock, ins);
4631                                         tblock = start_bblock->out_bb [0];
4632                                         link_bblock (cfg, bblock, tblock);
4633                                         ins->inst_target_bb = tblock;
4634                                         start_new_bblock = 1;
4635
4636                                         /* skip the CEE_RET, too */
4637                                         if (ip_in_bb (cfg, bblock, ip + 5))
4638                                                 ip += 6;
4639                                         else
4640                                                 ip += 5;
4641                                         ins_flag = 0;
4642                                         break;
4643                                 }
4644                         }
4645
4646                         if (*ip == CEE_CALLI) {
4647                                 /* Prevent inlining of methods with indirect calls */
4648                                 INLINE_FAILURE;
4649                                 if ((temp = mono_emit_calli (cfg, bblock, fsig, sp, addr, ip)) != -1) {
4650                                         NEW_TEMPLOAD (cfg, *sp, temp);
4651                                         sp++;
4652                                 }
4653                         } else if (array_rank) {
4654                                 MonoInst *addr;
4655
4656                                 if (strcmp (cmethod->name, "Set") == 0) { /* array Set */
4657                                         if (sp [fsig->param_count]->type == STACK_OBJ) {
4658                                                 MonoInst *iargs [2];
4659                                                 MonoInst *array, *to_store, *store;
4660
4661                                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4662
4663                                                 array = mono_compile_create_var (cfg, type_from_stack_type (sp [0]), OP_LOCAL);
4664                                                 NEW_TEMPSTORE (cfg, store, array->inst_c0, sp [0]);
4665                                                 store->cil_code = ip;
4666                                                 MONO_ADD_INS (bblock, store);
4667                                                 NEW_TEMPLOAD (cfg, iargs [0], array->inst_c0);
4668
4669                                                 to_store = mono_compile_create_var (cfg, type_from_stack_type (sp [fsig->param_count]), OP_LOCAL);
4670                                                 NEW_TEMPSTORE (cfg, store, to_store->inst_c0, sp [fsig->param_count]);
4671                                                 store->cil_code = ip;
4672                                                 MONO_ADD_INS (bblock, store);
4673                                                 NEW_TEMPLOAD (cfg, iargs [1], to_store->inst_c0);
4674
4675                                                 /*
4676                                                  * We first save the args for the call so that the args are copied to the stack
4677                                                  * and a new instruction tree for them is created. If we don't do this,
4678                                                  * the same MonoInst is added to two different trees and this is not
4679                                                  * allowed by burg.
4680                                                  */
4681                                                 mono_emit_jit_icall (cfg, bblock, mono_helper_stelem_ref_check, iargs, ip);
4682
4683                                                 NEW_TEMPLOAD (cfg, sp [0], array->inst_c0);
4684                                                 NEW_TEMPLOAD (cfg, sp [fsig->param_count], to_store->inst_c0);
4685                                         }
4686
4687                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, TRUE);
4688                                         NEW_INDSTORE (cfg, ins, addr, sp [fsig->param_count], fsig->params [fsig->param_count - 1]);
4689                                         ins->cil_code = ip;
4690                                         if (ins->opcode == CEE_STOBJ) {
4691                                                 handle_stobj (cfg, bblock, addr, sp [fsig->param_count], ip, mono_class_from_mono_type (fsig->params [fsig->param_count-1]), FALSE, FALSE, TRUE);
4692                                         } else {
4693                                                 MONO_ADD_INS (bblock, ins);
4694                                         }
4695
4696                                 } else if (strcmp (cmethod->name, "Get") == 0) { /* array Get */
4697                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, FALSE);
4698                                         NEW_INDLOAD (cfg, ins, addr, fsig->ret);
4699                                         ins->cil_code = ip;
4700
4701                                         *sp++ = ins;
4702                                 } else if (strcmp (cmethod->name, "Address") == 0) { /* array Address */
4703                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, FALSE);
4704                                         *sp++ = addr;
4705                                 } else {
4706                                         g_assert_not_reached ();
4707                                 }
4708
4709                         } else {
4710                                 /* Prevent inlining of methods which call other methods */
4711                                 INLINE_FAILURE;
4712                                 if (ip_in_bb (cfg, bblock, ip + 5)
4713                                     && (!MONO_TYPE_ISSTRUCT (fsig->ret))
4714                                     && (!MONO_TYPE_IS_VOID (fsig->ret) || cmethod->string_ctor)
4715                                     && (CODE_IS_STLOC (ip + 5) || ip [5] == CEE_POP || ip [5] == CEE_RET)) {
4716                                         /* no need to spill */
4717                                         ins = (MonoInst*)mono_emit_method_call (cfg, bblock, cmethod, fsig, sp, ip, virtual ? sp [0] : NULL);
4718                                         *sp++ = ins;
4719                                 } else {
4720                                         if ((temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, virtual ? sp [0] : NULL)) != -1) {
4721                                                 NEW_TEMPLOAD (cfg, *sp, temp);
4722                                                 sp++;
4723                                         }
4724                                 }
4725                         }
4726
4727                         ip += 5;
4728                         ins_flag = 0;
4729                         break;
4730                 }
4731                 case CEE_RET:
4732                         if (cfg->method != method) {
4733                                 /* return from inlined methode */
4734                                 if (return_var) {
4735                                         MonoInst *store;
4736                                         CHECK_STACK (1);
4737                                         --sp;
4738                                         //g_assert (returnvar != -1);
4739                                         NEW_TEMPSTORE (cfg, store, return_var->inst_c0, *sp);
4740                                         store->cil_code = sp [0]->cil_code;
4741                                         if (store->opcode == CEE_STOBJ) {
4742                                                 g_assert_not_reached ();
4743                                                 NEW_TEMPLOADA (cfg, store, return_var->inst_c0);
4744                                                 /* FIXME: it is possible some optimization will pass the a heap pointer for the struct address, so we'll need the write barrier */
4745                                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, return_var->klass, FALSE, FALSE, FALSE);
4746                                         } else
4747                                                 MONO_ADD_INS (bblock, store);
4748                                 }
4749                         } else {
4750                                 if (cfg->ret) {
4751                                         g_assert (!return_var);
4752                                         CHECK_STACK (1);
4753                                         --sp;
4754                                         MONO_INST_NEW (cfg, ins, CEE_NOP);
4755                                         ins->opcode = mono_type_to_stind (mono_method_signature (method)->ret);
4756                                         if (ins->opcode == CEE_STOBJ) {
4757                                                 NEW_RETLOADA (cfg, ins);
4758                                                 /* FIXME: it is possible some optimization will pass the a heap pointer for the struct address, so we'll need the write barrier */
4759                                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE, FALSE);
4760                                         } else {
4761                                                 ins->opcode = OP_SETRET;
4762                                                 ins->cil_code = ip;
4763                                                 ins->inst_i0 = *sp;;
4764                                                 ins->inst_i1 = NULL;
4765                                                 MONO_ADD_INS (bblock, ins);
4766                                         }
4767                                 }
4768                         }
4769                         if (sp != stack_start)
4770                                 UNVERIFIED;
4771                         MONO_INST_NEW (cfg, ins, CEE_BR);
4772                         ins->cil_code = ip++;
4773                         ins->inst_target_bb = end_bblock;
4774                         MONO_ADD_INS (bblock, ins);
4775                         link_bblock (cfg, bblock, end_bblock);
4776                         start_new_bblock = 1;
4777                         break;
4778                 case CEE_BR_S:
4779                         CHECK_OPSIZE (2);
4780                         MONO_INST_NEW (cfg, ins, CEE_BR);
4781                         ins->cil_code = ip++;
4782                         MONO_ADD_INS (bblock, ins);
4783                         target = ip + 1 + (signed char)(*ip);
4784                         ++ip;
4785                         GET_BBLOCK (cfg, bbhash, tblock, target);
4786                         link_bblock (cfg, bblock, tblock);
4787                         CHECK_BBLOCK (target, ip, tblock);
4788                         ins->inst_target_bb = tblock;
4789                         if (sp != stack_start) {
4790                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4791                                 sp = stack_start;
4792                                 CHECK_UNVERIFIABLE (cfg);
4793                         }
4794                         start_new_bblock = 1;
4795                         inline_costs += BRANCH_COST;
4796                         break;
4797                 case CEE_BRFALSE_S:
4798                 case CEE_BRTRUE_S:
4799                         CHECK_OPSIZE (2);
4800                         CHECK_STACK (1);
4801                         if (sp [-1]->type == STACK_VTYPE || sp [-1]->type == STACK_R8)
4802                                 UNVERIFIED;
4803                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
4804                         ins->cil_code = ip++;
4805                         target = ip + 1 + *(signed char*)ip;
4806                         ip++;
4807                         ADD_UNCOND (ins->opcode == CEE_BRTRUE);
4808                         if (sp != stack_start) {
4809                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4810                                 sp = stack_start;
4811                                 CHECK_UNVERIFIABLE (cfg);
4812                         }
4813                         inline_costs += BRANCH_COST;
4814                         break;
4815                 case CEE_BEQ_S:
4816                 case CEE_BGE_S:
4817                 case CEE_BGT_S:
4818                 case CEE_BLE_S:
4819                 case CEE_BLT_S:
4820                 case CEE_BNE_UN_S:
4821                 case CEE_BGE_UN_S:
4822                 case CEE_BGT_UN_S:
4823                 case CEE_BLE_UN_S:
4824                 case CEE_BLT_UN_S:
4825                         CHECK_OPSIZE (2);
4826                         CHECK_STACK (2);
4827                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
4828                         ins->cil_code = ip++;
4829                         target = ip + 1 + *(signed char*)ip;
4830                         ip++;
4831                         ADD_BINCOND (NULL);
4832                         if (sp != stack_start) {
4833                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4834                                 sp = stack_start;
4835                                 CHECK_UNVERIFIABLE (cfg);
4836                         }
4837                         inline_costs += BRANCH_COST;
4838                         break;
4839                 case CEE_BR:
4840                         CHECK_OPSIZE (5);
4841                         MONO_INST_NEW (cfg, ins, CEE_BR);
4842                         ins->cil_code = ip++;
4843                         MONO_ADD_INS (bblock, ins);
4844                         target = ip + 4 + (gint32)read32(ip);
4845                         ip += 4;
4846                         GET_BBLOCK (cfg, bbhash, tblock, target);
4847                         link_bblock (cfg, bblock, tblock);
4848                         CHECK_BBLOCK (target, ip, tblock);
4849                         ins->inst_target_bb = tblock;
4850                         if (sp != stack_start) {
4851                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4852                                 sp = stack_start;
4853                                 CHECK_UNVERIFIABLE (cfg);
4854                         }
4855                         start_new_bblock = 1;
4856                         inline_costs += BRANCH_COST;
4857                         break;
4858                 case CEE_BRFALSE:
4859                 case CEE_BRTRUE:
4860                         CHECK_OPSIZE (5);
4861                         CHECK_STACK (1);
4862                         if (sp [-1]->type == STACK_VTYPE || sp [-1]->type == STACK_R8)
4863                                 UNVERIFIED;
4864                         MONO_INST_NEW (cfg, ins, *ip);
4865                         ins->cil_code = ip++;
4866                         target = ip + 4 + (gint32)read32(ip);
4867                         ip += 4;
4868                         ADD_UNCOND(ins->opcode == CEE_BRTRUE);
4869                         if (sp != stack_start) {
4870                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4871                                 sp = stack_start;
4872                                 CHECK_UNVERIFIABLE (cfg);
4873                         }
4874                         inline_costs += BRANCH_COST;
4875                         break;
4876                 case CEE_BEQ:
4877                 case CEE_BGE:
4878                 case CEE_BGT:
4879                 case CEE_BLE:
4880                 case CEE_BLT:
4881                 case CEE_BNE_UN:
4882                 case CEE_BGE_UN:
4883                 case CEE_BGT_UN:
4884                 case CEE_BLE_UN:
4885                 case CEE_BLT_UN:
4886                         CHECK_OPSIZE (5);
4887                         CHECK_STACK (2);
4888                         MONO_INST_NEW (cfg, ins, *ip);
4889                         ins->cil_code = ip++;
4890                         target = ip + 4 + (gint32)read32(ip);
4891                         ip += 4;
4892                         ADD_BINCOND(NULL);
4893                         if (sp != stack_start) {
4894                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4895                                 sp = stack_start;
4896                                 CHECK_UNVERIFIABLE (cfg);
4897                         }
4898                         inline_costs += BRANCH_COST;
4899                         break;
4900                 case CEE_SWITCH:
4901                         CHECK_OPSIZE (5);
4902                         CHECK_STACK (1);
4903                         n = read32 (ip + 1);
4904                         MONO_INST_NEW (cfg, ins, *ip);
4905                         --sp;
4906                         ins->inst_left = *sp;
4907                         if ((ins->inst_left->type != STACK_I4) && (ins->inst_left->type != STACK_PTR))
4908                                 UNVERIFIED;
4909                         ins->cil_code = ip;
4910                         ip += 5;
4911                         CHECK_OPSIZE (n * sizeof (guint32));
4912                         target = ip + n * sizeof (guint32);
4913                         MONO_ADD_INS (bblock, ins);
4914                         GET_BBLOCK (cfg, bbhash, tblock, target);
4915                         link_bblock (cfg, bblock, tblock);
4916                         ins->klass = GUINT_TO_POINTER (n);
4917                         ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (n + 1));
4918                         ins->inst_many_bb [n] = tblock;
4919
4920                         for (i = 0; i < n; ++i) {
4921                                 GET_BBLOCK (cfg, bbhash, tblock, target + (gint32)read32(ip));
4922                                 link_bblock (cfg, bblock, tblock);
4923                                 ins->inst_many_bb [i] = tblock;
4924                                 ip += 4;
4925                         }
4926                         if (sp != stack_start) {
4927                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4928                                 sp = stack_start;
4929                                 CHECK_UNVERIFIABLE (cfg);
4930                         }
4931                         /* Needed by the code generated in inssel.brg */
4932                         mono_get_got_var (cfg);
4933                         inline_costs += (BRANCH_COST * 2);
4934                         break;
4935                 case CEE_LDIND_I1:
4936                 case CEE_LDIND_U1:
4937                 case CEE_LDIND_I2:
4938                 case CEE_LDIND_U2:
4939                 case CEE_LDIND_I4:
4940                 case CEE_LDIND_U4:
4941                 case CEE_LDIND_I8:
4942                 case CEE_LDIND_I:
4943                 case CEE_LDIND_R4:
4944                 case CEE_LDIND_R8:
4945                 case CEE_LDIND_REF:
4946                         CHECK_STACK (1);
4947                         MONO_INST_NEW (cfg, ins, *ip);
4948                         ins->cil_code = ip;
4949                         --sp;
4950                         ins->inst_i0 = *sp;
4951                         *sp++ = ins;
4952                         ins->type = ldind_type [*ip - CEE_LDIND_I1];
4953                         ins->flags |= ins_flag;
4954                         ins_flag = 0;
4955                         if (ins->type == STACK_OBJ)
4956                                 ins->klass = mono_defaults.object_class;
4957                         ++ip;
4958                         break;
4959                 case CEE_STIND_REF:
4960                 case CEE_STIND_I1:
4961                 case CEE_STIND_I2:
4962                 case CEE_STIND_I4:
4963                 case CEE_STIND_I8:
4964                 case CEE_STIND_R4:
4965                 case CEE_STIND_R8:
4966                         CHECK_STACK (2);
4967 #if HAVE_WRITE_BARRIERS
4968                         if (*ip == CEE_STIND_REF && method->wrapper_type != MONO_WRAPPER_WRITE_BARRIER) {
4969                                 /* insert call to write barrier */
4970                                 MonoMethod *write_barrier = mono_marshal_get_write_barrier ();
4971                                 sp -= 2;
4972                                 mono_emit_method_call_spilled (cfg, bblock, write_barrier, mono_method_signature (write_barrier), sp, ip, NULL);
4973                                 ip++;
4974                                 break;
4975                         }
4976 #endif
4977                         MONO_INST_NEW (cfg, ins, *ip);
4978                         ins->cil_code = ip++;
4979                         sp -= 2;
4980                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4981                         MONO_ADD_INS (bblock, ins);
4982                         ins->inst_i0 = sp [0];
4983                         ins->inst_i1 = sp [1];
4984                         ins->flags |= ins_flag;
4985                         ins_flag = 0;
4986                         inline_costs += 1;
4987                         break;
4988                 case CEE_MUL:
4989                         CHECK_STACK (2);
4990                         ADD_BINOP (*ip);
4991
4992 #ifdef MONO_ARCH_NO_EMULATE_MUL_IMM
4993                         /* FIXME: This breaks with ssapre (mono -O=ssapre loader.exe) */
4994                         if ((ins->inst_right->opcode == OP_ICONST) && !(cfg->opt & MONO_OPT_SSAPRE)) {
4995                                 switch (ins->opcode) {
4996                                 case CEE_MUL:
4997                                         ins->opcode = OP_IMUL_IMM;
4998                                         ins->inst_imm = ins->inst_right->inst_c0;
4999                                         break;
5000                                 case OP_LMUL:
5001                                         ins->opcode = OP_LMUL_IMM;
5002                                         ins->inst_imm = ins->inst_right->inst_c0;
5003                                         break;
5004                                 default:
5005                                         g_assert_not_reached ();
5006                                 }
5007                         }
5008 #endif
5009
5010                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
5011                                 --sp;
5012                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
5013                         }
5014                         ip++;
5015                         break;
5016                 case CEE_ADD:
5017                 case CEE_SUB:
5018                 case CEE_DIV:
5019                 case CEE_DIV_UN:
5020                 case CEE_REM:
5021                 case CEE_REM_UN:
5022                 case CEE_AND:
5023                 case CEE_OR:
5024                 case CEE_XOR:
5025                 case CEE_SHL:
5026                 case CEE_SHR:
5027                 case CEE_SHR_UN:
5028                         CHECK_STACK (2);
5029                         ADD_BINOP (*ip);
5030                         /* special case that gives a nice speedup and happens to workaorund a ppc jit but (for the release)
5031                          * later apply the speedup to the left shift as well
5032                          * See BUG# 57957.
5033                          */
5034                         if ((ins->opcode == OP_LSHR_UN) && (ins->type == STACK_I8)
5035                                         && (ins->inst_right->opcode == OP_ICONST) && (ins->inst_right->inst_c0 == 32)) {
5036                                 ins->opcode = OP_LONG_SHRUN_32;
5037                                 /*g_print ("applied long shr speedup to %s\n", cfg->method->name);*/
5038                                 ip++;
5039                                 break;
5040                         }
5041                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
5042                                 --sp;
5043                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
5044                         }
5045                         ip++;
5046                         break;
5047                 case CEE_NEG:
5048                 case CEE_NOT:
5049                 case CEE_CONV_I1:
5050                 case CEE_CONV_I2:
5051                 case CEE_CONV_I4:
5052                 case CEE_CONV_R4:
5053                 case CEE_CONV_R8:
5054                 case CEE_CONV_U4:
5055                 case CEE_CONV_I8:
5056                 case CEE_CONV_U8:
5057                 case CEE_CONV_OVF_I8:
5058                 case CEE_CONV_OVF_U8:
5059                 case CEE_CONV_R_UN:
5060                         CHECK_STACK (1);
5061                         ADD_UNOP (*ip);
5062                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
5063                                 --sp;
5064                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
5065                         }
5066                         ip++;
5067                         break;
5068                 case CEE_CONV_OVF_I4:
5069                 case CEE_CONV_OVF_I1:
5070                 case CEE_CONV_OVF_I2:
5071                 case CEE_CONV_OVF_I:
5072                 case CEE_CONV_OVF_U:
5073                         CHECK_STACK (1);
5074
5075                         if (sp [-1]->type == STACK_R8) {
5076                                 ADD_UNOP (CEE_CONV_OVF_I8);
5077                                 ADD_UNOP (*ip);
5078                         } else {
5079                                 ADD_UNOP (*ip);
5080                         }
5081
5082                         ip++;
5083                         break;
5084                 case CEE_CONV_OVF_U1:
5085                 case CEE_CONV_OVF_U2:
5086                 case CEE_CONV_OVF_U4:
5087                         CHECK_STACK (1);
5088
5089                         if (sp [-1]->type == STACK_R8) {
5090                                 ADD_UNOP (CEE_CONV_OVF_U8);
5091                                 ADD_UNOP (*ip);
5092                         } else {
5093                                 ADD_UNOP (*ip);
5094                         }
5095
5096                         ip++;
5097                         break;
5098                 case CEE_CONV_OVF_I1_UN:
5099                 case CEE_CONV_OVF_I2_UN:
5100                 case CEE_CONV_OVF_I4_UN:
5101                 case CEE_CONV_OVF_I8_UN:
5102                 case CEE_CONV_OVF_U1_UN:
5103                 case CEE_CONV_OVF_U2_UN:
5104                 case CEE_CONV_OVF_U4_UN:
5105                 case CEE_CONV_OVF_U8_UN:
5106                 case CEE_CONV_OVF_I_UN:
5107                 case CEE_CONV_OVF_U_UN:
5108                         CHECK_STACK (1);
5109                         ADD_UNOP (*ip);
5110                         ip++;
5111                         break;
5112                 case CEE_CPOBJ:
5113                         CHECK_OPSIZE (5);
5114                         CHECK_STACK (2);
5115                         token = read32 (ip + 1);
5116                         klass = mini_get_class (method, token, generic_context);
5117                         if (!klass)
5118                                 goto load_error;
5119                         sp -= 2;
5120                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
5121                                 MonoInst *store, *load;
5122                                 MONO_INST_NEW (cfg, load, CEE_LDIND_REF);
5123                                 load->cil_code = ip;
5124                                 load->inst_i0 = sp [1];
5125                                 load->type = STACK_OBJ;
5126                                 load->klass = klass;
5127                                 load->flags |= ins_flag;
5128                                 MONO_INST_NEW (cfg, store, CEE_STIND_REF);
5129                                 store->cil_code = ip;
5130                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
5131                                 MONO_ADD_INS (bblock, store);
5132                                 store->inst_i0 = sp [0];
5133                                 store->inst_i1 = load;
5134                                 store->flags |= ins_flag;
5135                         } else {
5136                                 n = mono_class_value_size (klass, NULL);
5137                                 if ((cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 5) {
5138                                         MonoInst *copy;
5139                                         MONO_INST_NEW (cfg, copy, OP_MEMCPY);
5140                                         copy->inst_left = sp [0];
5141                                         copy->inst_right = sp [1];
5142                                         copy->cil_code = ip;
5143                                         copy->unused = n;
5144                                         MONO_ADD_INS (bblock, copy);
5145                                 } else {
5146                                         MonoMethod *memcpy_method = get_memcpy_method ();
5147                                         MonoInst *iargs [3];
5148                                         iargs [0] = sp [0];
5149                                         iargs [1] = sp [1];
5150                                         NEW_ICONST (cfg, iargs [2], n);
5151                                         iargs [2]->cil_code = ip;
5152
5153                                         mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
5154                                 }
5155                         }
5156                         ins_flag = 0;
5157                         ip += 5;
5158                         break;
5159                 case CEE_LDOBJ: {
5160                         MonoInst *iargs [3];
5161                         int loc_index = -1;
5162                         int stloc_len = 0;
5163                         CHECK_OPSIZE (5);
5164                         CHECK_STACK (1);
5165                         --sp;
5166                         token = read32 (ip + 1);
5167                         klass = mini_get_class (method, token, generic_context);
5168                         if (!klass)
5169                                 goto load_error;
5170                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
5171                                 MONO_INST_NEW (cfg, ins, CEE_LDIND_REF);
5172                                 ins->cil_code = ip;
5173                                 ins->inst_i0 = sp [0];
5174                                 ins->type = STACK_OBJ;
5175                                 ins->klass = klass;
5176                                 ins->flags |= ins_flag;
5177                                 ins_flag = 0;
5178                                 *sp++ = ins;
5179                                 ip += 5;
5180                                 break;
5181                         }
5182
5183                         /* Optimize the common ldobj+stloc combination */
5184                         switch (ip [5]) {
5185                         case CEE_STLOC_S:
5186                                 loc_index = ip [6];
5187                                 stloc_len = 2;
5188                                 break;
5189                         case CEE_STLOC_0:
5190                         case CEE_STLOC_1:
5191                         case CEE_STLOC_2:
5192                         case CEE_STLOC_3:
5193                                 loc_index = ip [5] - CEE_STLOC_0;
5194                                 stloc_len = 1;
5195                                 break;
5196                         default:
5197                                 break;
5198                         }
5199
5200                         if ((loc_index != -1) && ip_in_bb (cfg, bblock, ip + 5)) {
5201                                 CHECK_LOCAL (loc_index);
5202                                 NEW_LOCSTORE (cfg, ins, loc_index, *sp);
5203
5204                                 if (ins->opcode == CEE_STOBJ) {
5205                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
5206                                         ins->cil_code = ip;
5207                                         g_assert (ins->opcode == CEE_STOBJ);
5208                                         NEW_LOCLOADA (cfg, ins, loc_index);
5209                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE, FALSE);
5210                                         ip += 5;
5211                                         ip += stloc_len;
5212                                         break;
5213                                 }
5214                         }
5215
5216                         n = mono_class_value_size (klass, NULL);
5217                         ins = mono_compile_create_var (cfg, &klass->byval_arg, OP_LOCAL);
5218                         NEW_TEMPLOADA (cfg, iargs [0], ins->inst_c0);
5219                         if ((cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 5) {
5220                                 MonoInst *copy;
5221                                 MONO_INST_NEW (cfg, copy, OP_MEMCPY);
5222                                 copy->inst_left = iargs [0];
5223                                 copy->inst_right = *sp;
5224                                 copy->cil_code = ip;
5225                                 copy->unused = n;
5226                                 MONO_ADD_INS (bblock, copy);
5227                         } else {
5228                                 MonoMethod *memcpy_method = get_memcpy_method ();
5229                                 iargs [1] = *sp;
5230                                 NEW_ICONST (cfg, iargs [2], n);
5231                                 iargs [2]->cil_code = ip;
5232
5233                                 mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
5234                         }
5235                         NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
5236                         ++sp;
5237                         ip += 5;
5238                         ins_flag = 0;
5239                         inline_costs += 1;
5240                         break;
5241                 }
5242                 case CEE_LDSTR:
5243                         CHECK_STACK_OVF (1);
5244                         CHECK_OPSIZE (5);
5245                         n = read32 (ip + 1);
5246
5247                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
5248                                 NEW_PCONST (cfg, ins, mono_method_get_wrapper_data (method, n));
5249                                 ins->cil_code = ip;
5250                                 ins->type = STACK_OBJ;
5251                                 ins->klass = mono_defaults.string_class;
5252                                 *sp = ins;
5253                         }
5254                         else if (method->wrapper_type != MONO_WRAPPER_NONE) {
5255                                 int temp;
5256                                 MonoInst *iargs [1];
5257
5258                                 NEW_PCONST (cfg, iargs [0], mono_method_get_wrapper_data (method, n));
5259                                 temp = mono_emit_jit_icall (cfg, bblock, mono_string_new_wrapper, iargs, ip);
5260                                 NEW_TEMPLOAD (cfg, *sp, temp);
5261
5262                         } else {
5263
5264                                 if (cfg->opt & MONO_OPT_SHARED) {
5265                                         int temp;
5266                                         MonoInst *iargs [3];
5267                                         MonoInst* domain_var;
5268
5269                                         if (cfg->compile_aot) {
5270                                                 cfg->ldstr_list = g_list_prepend (cfg->ldstr_list, GINT_TO_POINTER (n));
5271                                         }
5272                                         /* avoid depending on undefined C behavior in sequence points */
5273                                         domain_var = mono_get_domainvar (cfg);
5274                                         NEW_TEMPLOAD (cfg, iargs [0], domain_var->inst_c0);
5275                                         NEW_IMAGECONST (cfg, iargs [1], image);
5276                                         NEW_ICONST (cfg, iargs [2], mono_metadata_token_index (n));
5277                                         temp = mono_emit_jit_icall (cfg, bblock, mono_ldstr, iargs, ip);
5278                                         NEW_TEMPLOAD (cfg, *sp, temp);
5279                                         mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
5280                                 } else {
5281                                         if (bblock->out_of_line) {
5282                                                 MonoInst *iargs [2];
5283                                                 int temp;
5284
5285                                                 if (cfg->compile_aot && cfg->method->klass->image == mono_defaults.corlib) {
5286                                                         /*
5287                                                          * Avoid relocations by using a version of helper_ldstr
5288                                                          * specialized to mscorlib.
5289                                                          */
5290                                                         NEW_ICONST (cfg, iargs [0], mono_metadata_token_index (n));
5291                                                         temp = mono_emit_jit_icall (cfg, bblock, mono_helper_ldstr_mscorlib, iargs, ip);
5292                                                 } else {
5293                                                         /* Avoid creating the string object */
5294                                                         NEW_IMAGECONST (cfg, iargs [0], image);
5295                                                         NEW_ICONST (cfg, iargs [1], mono_metadata_token_index (n));
5296                                                         temp = mono_emit_jit_icall (cfg, bblock, mono_helper_ldstr, iargs, ip);
5297                                                 }
5298                                                 NEW_TEMPLOAD (cfg, *sp, temp);
5299                                         }
5300                                         else
5301                                         if (cfg->compile_aot) {
5302                                                 NEW_LDSTRCONST (cfg, ins, image, n);
5303                                                 *sp = ins;
5304                                         }
5305                                         else {
5306                                                 NEW_PCONST (cfg, ins, NULL);
5307                                                 ins->cil_code = ip;
5308                                                 ins->type = STACK_OBJ;
5309                                                 ins->inst_p0 = mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
5310                                                 ins->klass = mono_defaults.string_class;
5311                                                 *sp = ins;
5312                                         }
5313                                 }
5314                         }
5315
5316                         sp++;
5317                         ip += 5;
5318                         break;
5319                 case CEE_NEWOBJ: {
5320                         MonoInst *iargs [2];
5321                         MonoMethodSignature *fsig;
5322                         int temp;
5323
5324                         CHECK_OPSIZE (5);
5325                         token = read32 (ip + 1);
5326                         cmethod = mini_get_method (method, token, NULL, generic_context);
5327                         if (!cmethod)
5328                                 goto load_error;
5329                         fsig = mono_method_get_signature (cmethod, image, token);
5330
5331                         if (!mono_class_init (cmethod->klass))
5332                                 goto load_error;
5333
5334                         if (mono_use_security_manager) {
5335                                 if (check_linkdemand (cfg, method, cmethod, bblock, ip))
5336                                         INLINE_FAILURE;
5337                         }
5338
5339                         n = fsig->param_count;
5340                         CHECK_STACK (n);
5341
5342                         /* move the args to allow room for 'this' in the first position */
5343                         while (n--) {
5344                                 --sp;
5345                                 sp [1] = sp [0];
5346                         }
5347
5348                         handle_loaded_temps (cfg, bblock, stack_start, sp);
5349
5350                         if (mini_class_is_system_array (cmethod->klass)) {
5351                                 NEW_METHODCONST (cfg, *sp, cmethod);
5352                                 temp = handle_array_new (cfg, bblock, fsig->param_count, sp, ip);
5353                         } else if (cmethod->string_ctor) {
5354                                 /* we simply pass a null pointer */
5355                                 NEW_PCONST (cfg, *sp, NULL);
5356                                 /* now call the string ctor */
5357                                 temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, NULL);
5358                         } else {
5359                                 MonoInst* callvirt_this_arg = NULL;
5360
5361                                 if (cmethod->klass->valuetype) {
5362                                         iargs [0] = mono_compile_create_var (cfg, &cmethod->klass->byval_arg, OP_LOCAL);
5363                                         temp = iargs [0]->inst_c0;
5364
5365                                         NEW_TEMPLOADA (cfg, *sp, temp);
5366
5367                                         handle_initobj (cfg, bblock, *sp, NULL, cmethod->klass, stack_start, sp);
5368
5369                                         NEW_TEMPLOADA (cfg, *sp, temp);
5370
5371                                         /*
5372                                          * The code generated by mini_emit_virtual_call () expects
5373                                          * iargs [0] to be a boxed instance, but luckily the vcall
5374                                          * will be transformed into a normal call there.
5375                                          */
5376                                 } else {
5377                                         temp = handle_alloc (cfg, bblock, cmethod->klass, FALSE, ip);
5378                                         NEW_TEMPLOAD (cfg, *sp, temp);
5379                                 }
5380
5381                                 /* Avoid virtual calls to ctors if possible */
5382                                 if (cmethod->klass->marshalbyref)
5383                                         callvirt_this_arg = sp [0];
5384
5385                                 if ((cfg->opt & MONO_OPT_INLINE) && cmethod &&
5386                                     mono_method_check_inlining (cfg, cmethod) &&
5387                                     !mono_class_is_subclass_of (cmethod->klass, mono_defaults.exception_class, FALSE) &&
5388                                     !g_list_find (dont_inline, cmethod)) {
5389                                         int costs;
5390                                         MonoBasicBlock *ebblock;
5391                                         if ((costs = inline_method (cfg, cmethod, fsig, bblock, sp, ip, real_offset, dont_inline, &ebblock, FALSE))) {
5392
5393                                                 ip += 5;
5394                                                 real_offset += 5;
5395
5396                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5397                                                 ebblock->next_bb = bblock;
5398                                                 link_bblock (cfg, ebblock, bblock);
5399
5400                                                 NEW_TEMPLOAD (cfg, *sp, temp);
5401                                                 sp++;
5402
5403                                                 /* indicates start of a new block, and triggers a load
5404                                                    of all stack arguments at bb boundarie */
5405                                                 bblock = ebblock;
5406
5407                                                 inline_costs += costs;
5408                                                 break;
5409
5410                                         } else {
5411                                                 /* Prevent inlining of methods which call other methods */
5412                                                 INLINE_FAILURE;
5413                                                 mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, callvirt_this_arg);
5414                                         }
5415                                 } else {
5416                                         /* Prevent inlining of methods which call other methods */
5417                                         INLINE_FAILURE;
5418                                         /* now call the actual ctor */
5419                                         mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, callvirt_this_arg);
5420                                 }
5421                         }
5422
5423                         NEW_TEMPLOAD (cfg, *sp, temp);
5424                         sp++;
5425
5426                         ip += 5;
5427                         inline_costs += 5;
5428                         break;
5429                 }
5430                 case CEE_ISINST:
5431                         CHECK_STACK (1);
5432                         --sp;
5433                         CHECK_OPSIZE (5);
5434                         token = read32 (ip + 1);
5435                         klass = mini_get_class (method, token, generic_context);
5436                         if (!klass)
5437                                 goto load_error;
5438                         if (sp [0]->type != STACK_OBJ)
5439                                 UNVERIFIED;
5440
5441                         /* Needed by the code generated in inssel.brg */
5442                         mono_get_got_var (cfg);
5443
5444                         if (klass->marshalbyref || klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
5445
5446                                 MonoMethod *mono_isinst;
5447                                 MonoInst *iargs [1];
5448                                 MonoBasicBlock *ebblock;
5449                                 int costs;
5450                                 int temp;
5451
5452                                 mono_isinst = mono_marshal_get_isinst (klass);
5453                                 iargs [0] = sp [0];
5454
5455                                 costs = inline_method (cfg, mono_isinst, mono_method_signature (mono_isinst), bblock,
5456                                                            iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5457
5458                                 g_assert (costs > 0);
5459
5460                                 ip += 5;
5461                                 real_offset += 5;
5462
5463                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5464                                 ebblock->next_bb = bblock;
5465                                 link_bblock (cfg, ebblock, bblock);
5466
5467                                 temp = iargs [0]->inst_i0->inst_c0;
5468                                 NEW_TEMPLOAD (cfg, *sp, temp);
5469
5470                                 sp++;
5471                                 bblock = ebblock;
5472                                 inline_costs += costs;
5473                         } else {
5474                                 MONO_INST_NEW (cfg, ins, *ip);
5475                                 ins->type = STACK_OBJ;
5476                                 ins->inst_left = *sp;
5477                                 ins->inst_newa_class = klass;
5478                                 ins->klass = klass;
5479                                 ins->cil_code = ip;
5480                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 5);
5481                                 ip += 5;
5482                         }
5483                         break;
5484                 case CEE_UNBOX_ANY: {
5485                         MonoInst *add, *vtoffset;
5486                         MonoInst *iargs [3];
5487
5488                         CHECK_STACK (1);
5489                         --sp;
5490                         CHECK_OPSIZE (5);
5491                         token = read32 (ip + 1);
5492                         klass = mini_get_class (method, token, generic_context);
5493                         if (!klass)
5494                                 goto load_error;
5495
5496                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
5497                                 /* CASTCLASS */
5498                                 if (klass->marshalbyref || klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
5499                                         MonoMethod *mono_castclass;
5500                                         MonoInst *iargs [1];
5501                                         MonoBasicBlock *ebblock;
5502                                         int costs;
5503                                         int temp;
5504
5505                                         mono_castclass = mono_marshal_get_castclass (klass);
5506                                         iargs [0] = sp [0];
5507
5508                                         costs = inline_method (cfg, mono_castclass, mono_method_signature (mono_castclass), bblock,
5509                                                                    iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5510
5511                                         g_assert (costs > 0);
5512
5513                                         ip += 5;
5514                                         real_offset += 5;
5515
5516                                         GET_BBLOCK (cfg, bbhash, bblock, ip);
5517                                         ebblock->next_bb = bblock;
5518                                         link_bblock (cfg, ebblock, bblock);
5519
5520                                         temp = iargs [0]->inst_i0->inst_c0;
5521                                         NEW_TEMPLOAD (cfg, *sp, temp);
5522
5523                                         sp++;
5524                                         bblock = ebblock;
5525                                         inline_costs += costs;
5526                                 } else {
5527                                         MONO_INST_NEW (cfg, ins, CEE_CASTCLASS);
5528                                         ins->type = STACK_OBJ;
5529                                         ins->inst_left = *sp;
5530                                         ins->klass = klass;
5531                                         ins->inst_newa_class = klass;
5532                                         ins->cil_code = ip;
5533                                         *sp++ = ins;
5534                                         ip += 5;
5535                                 }
5536                                 break;
5537                         }
5538
5539                         if (mono_class_is_nullable (klass)) {
5540                                 int v = handle_unbox_nullable (cfg, bblock, *sp, ip, klass);
5541                                 NEW_TEMPLOAD (cfg, *sp, v);
5542                                 sp ++;
5543                                 ip += 5;
5544                                 break;
5545                         }
5546
5547                         MONO_INST_NEW (cfg, ins, OP_UNBOXCAST);
5548                         ins->type = STACK_OBJ;
5549                         ins->inst_left = *sp;
5550                         ins->klass = klass;
5551                         ins->inst_newa_class = klass;
5552                         ins->cil_code = ip;
5553
5554                         MONO_INST_NEW (cfg, add, OP_PADD);
5555                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
5556                         add->inst_left = ins;
5557                         add->inst_right = vtoffset;
5558                         add->type = STACK_MP;
5559                         add->klass = mono_defaults.object_class;
5560                         *sp = add;
5561                         ip += 5;
5562                         /* LDOBJ impl */
5563                         n = mono_class_value_size (klass, NULL);
5564                         ins = mono_compile_create_var (cfg, &klass->byval_arg, OP_LOCAL);
5565                         NEW_TEMPLOADA (cfg, iargs [0], ins->inst_c0);
5566                         if ((cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 5) {
5567                                 MonoInst *copy;
5568                                 MONO_INST_NEW (cfg, copy, OP_MEMCPY);
5569                                 copy->inst_left = iargs [0];
5570                                 copy->inst_right = *sp;
5571                                 copy->cil_code = ip;
5572                                 copy->unused = n;
5573                                 MONO_ADD_INS (bblock, copy);
5574                         } else {
5575                                 MonoMethod *memcpy_method = get_memcpy_method ();
5576                                 iargs [1] = *sp;
5577                                 NEW_ICONST (cfg, iargs [2], n);
5578                                 iargs [2]->cil_code = ip;
5579
5580                                 mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
5581                         }
5582                         NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
5583                         ++sp;
5584                         inline_costs += 2;
5585                         break;
5586                 }
5587                 case CEE_UNBOX: {
5588                         MonoInst *add, *vtoffset;
5589
5590                         CHECK_STACK (1);
5591                         --sp;
5592                         CHECK_OPSIZE (5);
5593                         token = read32 (ip + 1);
5594                         klass = mini_get_class (method, token, generic_context);
5595                         if (!klass)
5596                                 goto load_error;
5597
5598                         if (mono_class_is_nullable (klass)) {
5599                                 int v = handle_unbox_nullable (cfg, bblock, *sp, ip, klass);
5600                                 NEW_TEMPLOAD (cfg, *sp, v);
5601                                 sp ++;
5602                                 ip += 5;
5603                                 break;
5604                         }
5605
5606                         /* Needed by the code generated in inssel.brg */
5607                         mono_get_got_var (cfg);
5608
5609                         MONO_INST_NEW (cfg, ins, OP_UNBOXCAST);
5610                         ins->type = STACK_OBJ;
5611                         ins->inst_left = *sp;
5612                         ins->klass = klass;
5613                         ins->inst_newa_class = klass;
5614                         ins->cil_code = ip;
5615
5616                         MONO_INST_NEW (cfg, add, OP_PADD);
5617                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
5618                         add->inst_left = ins;
5619                         add->inst_right = vtoffset;
5620                         add->type = STACK_MP;
5621                         add->klass = klass;
5622                         *sp++ = add;
5623                         ip += 5;
5624                         inline_costs += 2;
5625                         break;
5626                 }
5627                 case CEE_CASTCLASS:
5628                         CHECK_STACK (1);
5629                         --sp;
5630                         CHECK_OPSIZE (5);
5631                         token = read32 (ip + 1);
5632                         klass = mini_get_class (method, token, generic_context);
5633                         if (!klass)
5634                                 goto load_error;
5635                         if (sp [0]->type != STACK_OBJ)
5636                                 UNVERIFIED;
5637
5638                         /* Needed by the code generated in inssel.brg */
5639                         mono_get_got_var (cfg);
5640
5641                         if (klass->marshalbyref || klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
5642
5643                                 MonoMethod *mono_castclass;
5644                                 MonoInst *iargs [1];
5645                                 MonoBasicBlock *ebblock;
5646                                 int costs;
5647                                 int temp;
5648
5649                                 mono_castclass = mono_marshal_get_castclass (klass);
5650                                 iargs [0] = sp [0];
5651
5652                                 costs = inline_method (cfg, mono_castclass, mono_method_signature (mono_castclass), bblock,
5653                                                            iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5654
5655                                 g_assert (costs > 0);
5656
5657                                 ip += 5;
5658                                 real_offset += 5;
5659
5660                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5661                                 ebblock->next_bb = bblock;
5662                                 link_bblock (cfg, ebblock, bblock);
5663
5664                                 temp = iargs [0]->inst_i0->inst_c0;
5665                                 NEW_TEMPLOAD (cfg, *sp, temp);
5666
5667                                 sp++;
5668                                 bblock = ebblock;
5669                                 inline_costs += costs;
5670                         } else {
5671                                 MONO_INST_NEW (cfg, ins, *ip);
5672                                 ins->type = STACK_OBJ;
5673                                 ins->inst_left = *sp;
5674                                 ins->klass = klass;
5675                                 ins->inst_newa_class = klass;
5676                                 ins->cil_code = ip;
5677                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 5);
5678                                 ip += 5;
5679                         }
5680                         break;
5681                 case CEE_THROW:
5682                         CHECK_STACK (1);
5683                         MONO_INST_NEW (cfg, ins, *ip);
5684                         --sp;
5685                         ins->inst_left = *sp;
5686                         ins->cil_code = ip++;
5687                         bblock->out_of_line = TRUE;
5688                         MONO_ADD_INS (bblock, ins);
5689                         MONO_INST_NEW (cfg, ins, OP_NOT_REACHED);
5690                         ins->cil_code = ip - 1;
5691                         MONO_ADD_INS (bblock, ins);
5692                         sp = stack_start;
5693
5694                         link_bblock (cfg, bblock, end_bblock);
5695                         start_new_bblock = 1;
5696                         break;
5697                 case CEE_LDFLD:
5698                 case CEE_LDFLDA:
5699                 case CEE_STFLD: {
5700                         MonoInst *offset_ins;
5701                         MonoClassField *field;
5702                         MonoBasicBlock *ebblock;
5703                         int costs;
5704                         guint foffset;
5705
5706                         if (*ip == CEE_STFLD) {
5707                                 CHECK_STACK (2);
5708                                 sp -= 2;
5709                         } else {
5710                                 CHECK_STACK (1);
5711                                 --sp;
5712                         }
5713                         if (sp [0]->type == STACK_I4 || sp [0]->type == STACK_I8 || sp [0]->type == STACK_R8)
5714                                 UNVERIFIED;
5715                         if (*ip != CEE_LDFLD && sp [0]->type == STACK_VTYPE)
5716                                 UNVERIFIED;
5717                         CHECK_OPSIZE (5);
5718                         token = read32 (ip + 1);
5719                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
5720                                 field = mono_method_get_wrapper_data (method, token);
5721                                 klass = field->parent;
5722                         } else {
5723                                 field = mono_field_from_token (image, token, &klass, generic_context);
5724                         }
5725                         if (!field)
5726                                 goto load_error;
5727                         mono_class_init (klass);
5728                         if (!dont_verify && !can_access_field (method, field))
5729                                 UNVERIFIED;
5730
5731                         foffset = klass->valuetype? field->offset - sizeof (MonoObject): field->offset;
5732                         /* FIXME: mark instructions for use in SSA */
5733                         if (*ip == CEE_STFLD) {
5734                                 if (target_type_is_incompatible (cfg, field->type, sp [1]))
5735                                         UNVERIFIED;
5736                                 if ((klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) || klass->contextbound || klass == mono_defaults.marshalbyrefobject_class) {
5737                                         MonoMethod *stfld_wrapper = mono_marshal_get_stfld_wrapper (field->type);
5738                                         MonoInst *iargs [5];
5739
5740                                         iargs [0] = sp [0];
5741                                         NEW_CLASSCONST (cfg, iargs [1], klass);
5742                                         NEW_FIELDCONST (cfg, iargs [2], field);
5743                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) :
5744                                                     field->offset);
5745                                         iargs [4] = sp [1];
5746
5747                                         if (cfg->opt & MONO_OPT_INLINE) {
5748                                                 costs = inline_method (cfg, stfld_wrapper, mono_method_signature (stfld_wrapper), bblock,
5749                                                                        iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5750                                                 g_assert (costs > 0);
5751
5752                                                 ip += 5;
5753                                                 real_offset += 5;
5754
5755                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5756                                                 ebblock->next_bb = bblock;
5757                                                 link_bblock (cfg, ebblock, bblock);
5758
5759                                                 /* indicates start of a new block, and triggers a load
5760                                                    of all stack arguments at bb boundarie */
5761                                                 bblock = ebblock;
5762
5763                                                 inline_costs += costs;
5764                                                 break;
5765                                         } else {
5766                                                 mono_emit_method_call_spilled (cfg, bblock, stfld_wrapper, mono_method_signature (stfld_wrapper), iargs, ip, NULL);
5767                                         }
5768 #if HAVE_WRITE_BARRIERS
5769                                 } else if (mono_type_to_stind (field->type) == CEE_STIND_REF) {
5770                                         /* insert call to write barrier */
5771                                         MonoMethod *write_barrier = mono_marshal_get_write_barrier ();
5772                                         MonoInst *iargs [2];
5773                                         NEW_ICONST (cfg, offset_ins, foffset);
5774                                         MONO_INST_NEW (cfg, ins, OP_PADD);
5775                                         ins->cil_code = ip;
5776                                         ins->inst_left = *sp;
5777                                         ins->inst_right = offset_ins;
5778                                         ins->type = STACK_MP;
5779                                         ins->klass = mono_defaults.object_class;
5780                                         iargs [0] = ins;
5781                                         iargs [1] = sp [1];
5782                                         mono_emit_method_call_spilled (cfg, bblock, write_barrier, mono_method_signature (write_barrier), iargs, ip, NULL);
5783 #endif
5784                                 } else {
5785                                         MonoInst *store;
5786                                         NEW_ICONST (cfg, offset_ins, foffset);
5787                                         MONO_INST_NEW (cfg, ins, OP_PADD);
5788                                         ins->cil_code = ip;
5789                                         ins->inst_left = *sp;
5790                                         ins->inst_right = offset_ins;
5791                                         ins->type = STACK_MP;
5792
5793                                         MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
5794                                         store->cil_code = ip;
5795                                         store->inst_left = ins;
5796                                         store->inst_right = sp [1];
5797                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
5798                                         store->flags |= ins_flag;
5799                                         ins_flag = 0;
5800                                         if (store->opcode == CEE_STOBJ) {
5801                                                 handle_stobj (cfg, bblock, ins, sp [1], ip,
5802                                                               mono_class_from_mono_type (field->type), FALSE, FALSE, TRUE);
5803                                         } else
5804                                                 MONO_ADD_INS (bblock, store);
5805                                 }
5806                         } else {
5807                                 if ((klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) || klass->contextbound || klass == mono_defaults.marshalbyrefobject_class) {
5808                                         MonoMethod *wrapper = (*ip == CEE_LDFLDA) ? mono_marshal_get_ldflda_wrapper (field->type) : mono_marshal_get_ldfld_wrapper (field->type);
5809                                         MonoInst *iargs [4];
5810                                         int temp;
5811
5812                                         iargs [0] = sp [0];
5813                                         NEW_CLASSCONST (cfg, iargs [1], klass);
5814                                         NEW_FIELDCONST (cfg, iargs [2], field);
5815                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
5816                                         if ((cfg->opt & MONO_OPT_INLINE) && !MONO_TYPE_ISSTRUCT (mono_method_signature (wrapper)->ret)) {
5817                                                 costs = inline_method (cfg, wrapper, mono_method_signature (wrapper), bblock,
5818                                                                        iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5819                                                 g_assert (costs > 0);
5820
5821                                                 ip += 5;
5822                                                 real_offset += 5;
5823
5824                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5825                                                 ebblock->next_bb = bblock;
5826                                                 link_bblock (cfg, ebblock, bblock);
5827
5828                                                 temp = iargs [0]->inst_i0->inst_c0;
5829
5830                                                 NEW_TEMPLOAD (cfg, *sp, temp);
5831                                                 sp++;
5832
5833                                                 /* indicates start of a new block, and triggers a load of
5834                                                    all stack arguments at bb boundarie */
5835                                                 bblock = ebblock;
5836
5837                                                 inline_costs += costs;
5838                                                 break;
5839                                         } else {
5840                                                 temp = mono_emit_method_call_spilled (cfg, bblock, wrapper, mono_method_signature (wrapper), iargs, ip, NULL);
5841                                                 NEW_TEMPLOAD (cfg, *sp, temp);
5842                                                 sp++;
5843                                         }
5844                                 } else {
5845                                         NEW_ICONST (cfg, offset_ins, foffset);
5846                                         MONO_INST_NEW (cfg, ins, OP_PADD);
5847                                         ins->cil_code = ip;
5848                                         ins->inst_left = *sp;
5849                                         ins->inst_right = offset_ins;
5850                                         ins->type = STACK_MP;
5851
5852                                         if (*ip == CEE_LDFLDA) {
5853                                                 ins->klass = mono_class_from_mono_type (field->type);
5854                                                 *sp++ = ins;
5855                                         } else {
5856                                                 MonoInst *load;
5857                                                 MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
5858                                                 type_to_eval_stack_type (field->type, load);
5859                                                 load->cil_code = ip;
5860                                                 load->inst_left = ins;
5861                                                 load->flags |= ins_flag;
5862                                                 ins_flag = 0;
5863                                                 *sp++ = load;
5864                                         }
5865                                 }
5866                         }
5867                         ip += 5;
5868                         break;
5869                 }
5870                 case CEE_LDSFLD:
5871                 case CEE_LDSFLDA:
5872                 case CEE_STSFLD: {
5873                         MonoClassField *field;
5874                         gpointer addr = NULL;
5875
5876                         CHECK_OPSIZE (5);
5877                         token = read32 (ip + 1);
5878                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
5879                                 field = mono_method_get_wrapper_data (method, token);
5880                                 klass = field->parent;
5881                         }
5882                         else
5883                                 field = mono_field_from_token (image, token, &klass, generic_context);
5884                         if (!field)
5885                                 goto load_error;
5886                         mono_class_init (klass);
5887
5888                         g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL));
5889
5890                         if ((*ip) == CEE_STSFLD)
5891                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
5892
5893                         /* The special_static_fields field is init'd in mono_class_vtable, so it needs
5894                          * to be called here.
5895                          */
5896                         if (!(cfg->opt & MONO_OPT_SHARED))
5897                                 mono_class_vtable (cfg->domain, klass);
5898                         mono_domain_lock (cfg->domain);
5899                         if (cfg->domain->special_static_fields)
5900                                 addr = g_hash_table_lookup (cfg->domain->special_static_fields, field);
5901                         mono_domain_unlock (cfg->domain);
5902
5903                         if ((cfg->opt & MONO_OPT_SHARED) || (cfg->compile_aot && addr)) {
5904                                 int temp;
5905                                 MonoInst *iargs [2];
5906                                 MonoInst *domain_var;
5907
5908                                 g_assert (field->parent);
5909                                 /* avoid depending on undefined C behavior in sequence points */
5910                                 domain_var = mono_get_domainvar (cfg);
5911                                 NEW_TEMPLOAD (cfg, iargs [0], domain_var->inst_c0);
5912                                 NEW_FIELDCONST (cfg, iargs [1], field);
5913                                 temp = mono_emit_jit_icall (cfg, bblock, mono_class_static_field_address, iargs, ip);
5914                                 NEW_TEMPLOAD (cfg, ins, temp);
5915                         } else {
5916                                 MonoVTable *vtable;
5917                                 vtable = mono_class_vtable (cfg->domain, klass);
5918                                 if (!addr) {
5919                                         if (mini_field_access_needs_cctor_run (cfg, method, vtable) && !(g_slist_find (class_inits, vtable))) {
5920                                                 guint8 *tramp = mono_create_class_init_trampoline (vtable);
5921                                                 mono_emit_native_call (cfg, bblock, tramp,
5922                                                                                            helper_sig_class_init_trampoline,
5923                                                                                            NULL, ip, FALSE, FALSE);
5924                                                 if (cfg->verbose_level > 2)
5925                                                         g_print ("class %s.%s needs init call for %s\n", klass->name_space, klass->name, field->name);
5926                                                 class_inits = g_slist_prepend (class_inits, vtable);
5927                                         } else {
5928                                                 if (cfg->run_cctors) {
5929                                                         /* This makes so that inline cannot trigger */
5930                                                         /* .cctors: too many apps depend on them */
5931                                                         /* running with a specific order... */
5932                                                         if (! vtable->initialized)
5933                                                                 INLINE_FAILURE;
5934                                                         mono_runtime_class_init (vtable);
5935                                                 }
5936                                         }
5937                                         addr = (char*)vtable->data + field->offset;
5938
5939                                         if (cfg->compile_aot)
5940                                                 NEW_SFLDACONST (cfg, ins, field);
5941                                         else
5942                                                 NEW_PCONST (cfg, ins, addr);
5943                                         ins->cil_code = ip;
5944                                 } else {
5945                                         /*
5946                                          * insert call to mono_threads_get_static_data (GPOINTER_TO_UINT (addr))
5947                                          * This could be later optimized to do just a couple of
5948                                          * memory dereferences with constant offsets.
5949                                          */
5950                                         int temp;
5951                                         MonoInst *iargs [1];
5952                                         NEW_ICONST (cfg, iargs [0], GPOINTER_TO_UINT (addr));
5953                                         temp = mono_emit_jit_icall (cfg, bblock, mono_get_special_static_data, iargs, ip);
5954                                         NEW_TEMPLOAD (cfg, ins, temp);
5955                                 }
5956                         }
5957
5958                         /* FIXME: mark instructions for use in SSA */
5959                         if (*ip == CEE_LDSFLDA) {
5960                                 ins->klass = mono_class_from_mono_type (field->type);
5961                                 *sp++ = ins;
5962                         } else if (*ip == CEE_STSFLD) {
5963                                 MonoInst *store;
5964                                 CHECK_STACK (1);
5965                                 sp--;
5966                                 MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
5967                                 store->cil_code = ip;
5968                                 store->inst_left = ins;
5969                                 store->inst_right = sp [0];
5970                                 store->flags |= ins_flag;
5971                                 ins_flag = 0;
5972
5973                                 if (store->opcode == CEE_STOBJ) {
5974                                         handle_stobj (cfg, bblock, ins, sp [0], ip, mono_class_from_mono_type (field->type), FALSE, FALSE, FALSE);
5975                                 } else
5976                                         MONO_ADD_INS (bblock, store);
5977                         } else {
5978                                 gboolean is_const = FALSE;
5979                                 MonoVTable *vtable = mono_class_vtable (cfg->domain, klass);
5980                                 if (!((cfg->opt & MONO_OPT_SHARED) || cfg->compile_aot) &&
5981                                     vtable->initialized && (field->type->attrs & FIELD_ATTRIBUTE_INIT_ONLY)) {
5982                                         gpointer addr = (char*)vtable->data + field->offset;
5983                                         int ro_type = field->type->type;
5984                                         if (ro_type == MONO_TYPE_VALUETYPE && field->type->data.klass->enumtype) {
5985                                                 ro_type = field->type->data.klass->enum_basetype->type;
5986                                         }
5987                                         /* g_print ("RO-FIELD %s.%s:%s\n", klass->name_space, klass->name, field->name);*/
5988                                         is_const = TRUE;
5989                                         switch (ro_type) {
5990                                         case MONO_TYPE_BOOLEAN:
5991                                         case MONO_TYPE_U1:
5992                                                 NEW_ICONST (cfg, *sp, *((guint8 *)addr));
5993                                                 sp++;
5994                                                 break;
5995                                         case MONO_TYPE_I1:
5996                                                 NEW_ICONST (cfg, *sp, *((gint8 *)addr));
5997                                                 sp++;
5998                                                 break;
5999                                         case MONO_TYPE_CHAR:
6000                                         case MONO_TYPE_U2:
6001                                                 NEW_ICONST (cfg, *sp, *((guint16 *)addr));
6002                                                 sp++;
6003                                                 break;
6004                                         case MONO_TYPE_I2:
6005                                                 NEW_ICONST (cfg, *sp, *((gint16 *)addr));
6006                                                 sp++;
6007                                                 break;
6008                                                 break;
6009                                         case MONO_TYPE_I4:
6010                                                 NEW_ICONST (cfg, *sp, *((gint32 *)addr));
6011                                                 sp++;
6012                                                 break;
6013                                         case MONO_TYPE_U4:
6014                                                 NEW_ICONST (cfg, *sp, *((guint32 *)addr));
6015                                                 sp++;
6016                                                 break;
6017 #ifndef HAVE_MOVING_COLLECTOR
6018                                         case MONO_TYPE_I:
6019                                         case MONO_TYPE_U:
6020                                         case MONO_TYPE_STRING:
6021                                         case MONO_TYPE_OBJECT:
6022                                         case MONO_TYPE_CLASS:
6023                                         case MONO_TYPE_SZARRAY:
6024                                         case MONO_TYPE_PTR:
6025                                         case MONO_TYPE_FNPTR:
6026                                         case MONO_TYPE_ARRAY:
6027                                                 NEW_PCONST (cfg, *sp, *((gpointer *)addr));
6028                                                 type_to_eval_stack_type (field->type, *sp);
6029                                                 sp++;
6030                                                 break;
6031 #endif
6032                                         case MONO_TYPE_I8:
6033                                         case MONO_TYPE_U8:
6034                                                 MONO_INST_NEW (cfg, *sp, OP_I8CONST);
6035                                                 sp [0]->type = STACK_I8;
6036                                                 sp [0]->inst_l = *((gint64 *)addr);
6037                                                 sp++;
6038                                                 break;
6039                                         case MONO_TYPE_R4:
6040                                         case MONO_TYPE_R8:
6041                                         case MONO_TYPE_VALUETYPE:
6042                                         default:
6043                                                 is_const = FALSE;
6044                                                 break;
6045                                         }
6046                                 }
6047
6048                                 if (!is_const) {
6049                                         MonoInst *load;
6050                                         CHECK_STACK_OVF (1);
6051                                         MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
6052                                         type_to_eval_stack_type (field->type, load);
6053                                         load->cil_code = ip;
6054                                         load->inst_left = ins;
6055                                         *sp++ = load;
6056                                         load->flags |= ins_flag;
6057                                         ins_flag = 0;
6058                                         /* fixme: dont see the problem why this does not work */
6059                                         //cfg->disable_aot = TRUE;
6060                                 }
6061                         }
6062                         ip += 5;
6063                         break;
6064                 }
6065                 case CEE_STOBJ:
6066                         CHECK_STACK (2);
6067                         sp -= 2;
6068                         CHECK_OPSIZE (5);
6069                         token = read32 (ip + 1);
6070                         klass = mini_get_class (method, token, generic_context);
6071                         if (!klass)
6072                                 goto load_error;
6073                         n = mono_type_to_stind (&klass->byval_arg);
6074                         if (n == CEE_STOBJ) {
6075                                 handle_stobj (cfg, bblock, sp [0], sp [1], ip, klass, FALSE, FALSE, TRUE);
6076                         } else {
6077                                 /* FIXME: should check item at sp [1] is compatible with the type of the store. */
6078                                 MonoInst *store;
6079                                 MONO_INST_NEW (cfg, store, n);
6080                                 store->cil_code = ip;
6081                                 store->inst_left = sp [0];
6082                                 store->inst_right = sp [1];
6083                                 store->flags |= ins_flag;
6084                                 MONO_ADD_INS (bblock, store);
6085                         }
6086                         ins_flag = 0;
6087                         ip += 5;
6088                         inline_costs += 1;
6089                         break;
6090                 case CEE_BOX: {
6091                         MonoInst *val;
6092                         CHECK_STACK (1);
6093                         --sp;
6094                         val = *sp;
6095                         CHECK_OPSIZE (5);
6096                         token = read32 (ip + 1);
6097                         klass = mini_get_class (method, token, generic_context);
6098                         if (!klass)
6099                                 goto load_error;
6100
6101                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
6102                                 *sp++ = val;
6103                                 ip += 5;
6104                                 break;
6105                         }
6106                         if (klass == mono_defaults.void_class)
6107                                 UNVERIFIED;
6108                         if (target_type_is_incompatible (cfg, &klass->byval_arg, *sp))
6109                                 UNVERIFIED;
6110                         /* frequent check in generic code: box (struct), brtrue */
6111                         if (!mono_class_is_nullable (klass) &&
6112                             ip + 5 < end && ip_in_bb (cfg, bblock, ip + 5) && (ip [5] == CEE_BRTRUE || ip [5] == CEE_BRTRUE_S)) {
6113                                 /*g_print ("box-brtrue opt at 0x%04x in %s\n", real_offset, method->name);*/
6114                                 MONO_INST_NEW (cfg, ins, CEE_POP);
6115                                 MONO_ADD_INS (bblock, ins);
6116                                 ins->cil_code = ip;
6117                                 ins->inst_i0 = *sp;
6118                                 ip += 5;
6119                                 MONO_INST_NEW (cfg, ins, CEE_BR);
6120                                 ins->cil_code = ip;
6121                                 MONO_ADD_INS (bblock, ins);
6122                                 if (*ip == CEE_BRTRUE_S) {
6123                                         CHECK_OPSIZE (2);
6124                                         ip++;
6125                                         target = ip + 1 + (signed char)(*ip);
6126                                         ip++;
6127                                 } else {
6128                                         CHECK_OPSIZE (5);
6129                                         ip++;
6130                                         target = ip + 4 + (gint)(read32 (ip));
6131                                         ip += 4;
6132                                 }
6133                                 GET_BBLOCK (cfg, bbhash, tblock, target);
6134                                 link_bblock (cfg, bblock, tblock);
6135                                 CHECK_BBLOCK (target, ip, tblock);
6136                                 ins->inst_target_bb = tblock;
6137                                 if (sp != stack_start) {
6138                                         handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
6139                                         sp = stack_start;
6140                                         CHECK_UNVERIFIABLE (cfg);
6141                                 }
6142                                 start_new_bblock = 1;
6143                                 break;
6144                         }
6145                         *sp++ = handle_box (cfg, bblock, val, ip, klass);
6146                         ip += 5;
6147                         inline_costs += 1;
6148                         break;
6149                 }
6150                 case CEE_NEWARR:
6151                         CHECK_STACK (1);
6152                         MONO_INST_NEW (cfg, ins, *ip);
6153                         ins->cil_code = ip;
6154                         --sp;
6155
6156                         CHECK_OPSIZE (5);
6157                         token = read32 (ip + 1);
6158
6159                         /* allocate the domainvar - becaus this is used in decompose_foreach */
6160                         if (cfg->opt & MONO_OPT_SHARED) {
6161                                 mono_get_domainvar (cfg);
6162                                 /* LAME-IR: Mark it as used since otherwise it will be optimized away */
6163                                 cfg->domainvar->flags |= MONO_INST_VOLATILE;
6164                         }
6165
6166                         /* Ditto */
6167                         mono_get_got_var (cfg);
6168
6169                         klass = mini_get_class (method, token, generic_context);
6170                         if (!klass)
6171                                 goto load_error;
6172                         ins->inst_newa_class = klass;
6173                         ins->inst_newa_len = *sp;
6174                         ins->type = STACK_OBJ;
6175                         ins->klass = klass;
6176                         ip += 5;
6177                         *sp++ = ins;
6178                         /*
6179                          * we store the object so calls to create the array are not interleaved
6180                          * with the arguments of other calls.
6181                          */
6182                         if (1) {
6183                                 MonoInst *store, *temp, *load;
6184                                 --sp;
6185                                 temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
6186                                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
6187                                 store->cil_code = ins->cil_code;
6188                                 MONO_ADD_INS (bblock, store);
6189                                 NEW_TEMPLOAD (cfg, load, temp->inst_c0);
6190                                 load->cil_code = ins->cil_code;
6191                                 *sp++ = load;
6192                         }
6193                         inline_costs += 1;
6194                         break;
6195                 case CEE_LDLEN:
6196                         CHECK_STACK (1);
6197                         --sp;
6198                         if (sp [0]->type != STACK_OBJ)
6199                                 UNVERIFIED;
6200                         MONO_INST_NEW (cfg, ins, *ip);
6201                         ins->cil_code = ip++;
6202                         ins->inst_left = *sp;
6203                         ins->type = STACK_PTR;
6204                         *sp++ = ins;
6205                         break;
6206                 case CEE_LDELEMA:
6207                         CHECK_STACK (2);
6208                         sp -= 2;
6209                         CHECK_OPSIZE (5);
6210                         if (sp [0]->type != STACK_OBJ)
6211                                 UNVERIFIED;
6212
6213                         klass = mini_get_class (method, read32 (ip + 1), generic_context);
6214                         if (!klass)
6215                                 goto load_error;
6216                         /* we need to make sure that this array is exactly the type it needs
6217                          * to be for correctness. the wrappers are lax with their usage
6218                          * so we need to ignore them here
6219                          */
6220                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE) {
6221                                 MonoInst* check;
6222                                 MONO_INST_NEW (cfg, check, OP_CHECK_ARRAY_TYPE);
6223                                 check->cil_code = ip;
6224                                 check->klass = klass;
6225                                 check->inst_left = sp [0];
6226                                 check->type = STACK_OBJ;
6227                                 check->klass = klass;
6228                                 sp [0] = check;
6229                         }
6230
6231                         mono_class_init (klass);
6232                         NEW_LDELEMA (cfg, ins, sp, klass);
6233                         ins->cil_code = ip;
6234                         *sp++ = ins;
6235                         ip += 5;
6236                         break;
6237                 case CEE_LDELEM_ANY: {
6238                         MonoInst *load;
6239                         CHECK_STACK (2);
6240                         sp -= 2;
6241                         if (sp [0]->type != STACK_OBJ)
6242                                 UNVERIFIED;
6243                         CHECK_OPSIZE (5);
6244                         token = read32 (ip + 1);
6245                         klass = mono_class_get_full (image, token, generic_context);
6246                         if (!klass)
6247                                 goto load_error;
6248                         mono_class_init (klass);
6249                         NEW_LDELEMA (cfg, load, sp, klass);
6250                         load->cil_code = ip;
6251                         MONO_INST_NEW (cfg, ins, mono_type_to_ldind (&klass->byval_arg));
6252                         ins->cil_code = ip;
6253                         ins->inst_left = load;
6254                         *sp++ = ins;
6255                         type_to_eval_stack_type (&klass->byval_arg, ins);
6256                         ip += 5;
6257                         break;
6258                 }
6259                 case CEE_LDELEM_I1:
6260                 case CEE_LDELEM_U1:
6261                 case CEE_LDELEM_I2:
6262                 case CEE_LDELEM_U2:
6263                 case CEE_LDELEM_I4:
6264                 case CEE_LDELEM_U4:
6265                 case CEE_LDELEM_I8:
6266                 case CEE_LDELEM_I:
6267                 case CEE_LDELEM_R4:
6268                 case CEE_LDELEM_R8:
6269                 case CEE_LDELEM_REF: {
6270                         MonoInst *load;
6271                         /*
6272                          * translate to:
6273                          * ldind.x (ldelema (array, index))
6274                          * ldelema does the bounds check
6275                          */
6276                         CHECK_STACK (2);
6277                         sp -= 2;
6278                         if (sp [0]->type != STACK_OBJ)
6279                                 UNVERIFIED;
6280                         klass = array_access_to_klass (*ip);
6281                         NEW_LDELEMA (cfg, load, sp, klass);
6282                         load->cil_code = ip;
6283                         MONO_INST_NEW (cfg, ins, ldelem_to_ldind [*ip - CEE_LDELEM_I1]);
6284                         ins->cil_code = ip;
6285                         ins->inst_left = load;
6286                         *sp++ = ins;
6287                         ins->type = ldind_type [ins->opcode - CEE_LDIND_I1];
6288                         ins->klass = klass;
6289                         ++ip;
6290                         break;
6291                 }
6292                 case CEE_STELEM_I:
6293                 case CEE_STELEM_I1:
6294                 case CEE_STELEM_I2:
6295                 case CEE_STELEM_I4:
6296                 case CEE_STELEM_I8:
6297                 case CEE_STELEM_R4:
6298                 case CEE_STELEM_R8: {
6299                         MonoInst *load;
6300                         /*
6301                          * translate to:
6302                          * stind.x (ldelema (array, index), val)
6303                          * ldelema does the bounds check
6304                          */
6305                         CHECK_STACK (3);
6306                         sp -= 3;
6307                         if (sp [0]->type != STACK_OBJ)
6308                                 UNVERIFIED;
6309                         klass = array_access_to_klass (*ip);
6310                         NEW_LDELEMA (cfg, load, sp, klass);
6311                         load->cil_code = ip;
6312                         MONO_INST_NEW (cfg, ins, stelem_to_stind [*ip - CEE_STELEM_I]);
6313                         ins->cil_code = ip;
6314                         ins->inst_left = load;
6315                         ins->inst_right = sp [2];
6316                         ++ip;
6317                         handle_loaded_temps (cfg, bblock, stack_start, sp);
6318                         MONO_ADD_INS (bblock, ins);
6319                         inline_costs += 1;
6320                         break;
6321                 }
6322                 case CEE_STELEM_ANY: {
6323                         MonoInst *load;
6324                         /*
6325                          * translate to:
6326                          * stind.x (ldelema (array, index), val)
6327                          * ldelema does the bounds check
6328                          */
6329                         CHECK_STACK (3);
6330                         sp -= 3;
6331                         if (sp [0]->type != STACK_OBJ)
6332                                 UNVERIFIED;
6333                         CHECK_OPSIZE (5);
6334                         token = read32 (ip + 1);
6335                         klass = mono_class_get_full (image, token, generic_context);
6336                         if (!klass)
6337                                 goto load_error;
6338                         mono_class_init (klass);
6339                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
6340                                 MonoMethod* helper = mono_marshal_get_stelemref ();
6341                                 MonoInst *iargs [3];
6342                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6343
6344                                 iargs [2] = sp [2];
6345                                 iargs [1] = sp [1];
6346                                 iargs [0] = sp [0];
6347
6348                                 mono_emit_method_call_spilled (cfg, bblock, helper, mono_method_signature (helper), iargs, ip, NULL);
6349                         } else {
6350                                 NEW_LDELEMA (cfg, load, sp, klass);
6351                                 load->cil_code = ip;
6352
6353                                 n = mono_type_to_stind (&klass->byval_arg);
6354                                 if (n == CEE_STOBJ)
6355                                         handle_stobj (cfg, bblock, load, sp [2], ip, klass, FALSE, FALSE, TRUE);
6356                                 else {
6357                                         MONO_INST_NEW (cfg, ins, n);
6358                                         ins->cil_code = ip;
6359                                         ins->inst_left = load;
6360                                         ins->inst_right = sp [2];
6361                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
6362                                         MONO_ADD_INS (bblock, ins);
6363                                 }
6364                         }
6365                         ip += 5;
6366                         inline_costs += 1;
6367                         break;
6368                 }
6369                 case CEE_STELEM_REF: {
6370                         MonoInst *iargs [3];
6371                         MonoMethod* helper = mono_marshal_get_stelemref ();
6372
6373                         CHECK_STACK (3);
6374                         sp -= 3;
6375                         if (sp [0]->type != STACK_OBJ)
6376                                 UNVERIFIED;
6377                         if (sp [2]->type != STACK_OBJ)
6378                                 UNVERIFIED;
6379
6380                         handle_loaded_temps (cfg, bblock, stack_start, sp);
6381
6382                         iargs [2] = sp [2];
6383                         iargs [1] = sp [1];
6384                         iargs [0] = sp [0];
6385
6386                         mono_emit_method_call_spilled (cfg, bblock, helper, mono_method_signature (helper), iargs, ip, NULL);
6387
6388                         /*
6389                         MonoInst *group;
6390                         NEW_GROUP (cfg, group, sp [0], sp [1]);
6391                         MONO_INST_NEW (cfg, ins, CEE_STELEM_REF);
6392                         ins->cil_code = ip;
6393                         ins->inst_left = group;
6394                         ins->inst_right = sp [2];
6395                         MONO_ADD_INS (bblock, ins);
6396                         */
6397
6398                         ++ip;
6399                         inline_costs += 1;
6400                         break;
6401                 }
6402                 case CEE_CKFINITE: {
6403                         MonoInst *store, *temp;
6404                         CHECK_STACK (1);
6405
6406                         /* this instr. can throw exceptions as side effect,
6407                          * so we cant eliminate dead code which contains CKFINITE opdodes.
6408                          * Spilling to memory makes sure that we always perform
6409                          * this check */
6410
6411
6412                         MONO_INST_NEW (cfg, ins, CEE_CKFINITE);
6413                         ins->cil_code = ip;
6414                         ins->inst_left = sp [-1];
6415                         temp = mono_compile_create_var (cfg, &mono_defaults.double_class->byval_arg, OP_LOCAL);
6416
6417                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
6418                         store->cil_code = ip;
6419                         MONO_ADD_INS (bblock, store);
6420
6421                         NEW_TEMPLOAD (cfg, sp [-1], temp->inst_c0);
6422
6423                         ++ip;
6424                         break;
6425                 }
6426                 case CEE_REFANYVAL:
6427                         CHECK_STACK (1);
6428                         MONO_INST_NEW (cfg, ins, *ip);
6429                         --sp;
6430                         CHECK_OPSIZE (5);
6431                         klass = mono_class_get_full (image, read32 (ip + 1), generic_context);
6432                         if (!klass)
6433                                 goto load_error;
6434                         mono_class_init (klass);
6435                         ins->type = STACK_MP;
6436                         ins->inst_left = *sp;
6437                         ins->klass = klass;
6438                         ins->inst_newa_class = klass;
6439                         ins->cil_code = ip;
6440                         ip += 5;
6441                         *sp++ = ins;
6442                         break;
6443                 case CEE_MKREFANY: {
6444                         MonoInst *loc, *klassconst;
6445
6446                         CHECK_STACK (1);
6447                         MONO_INST_NEW (cfg, ins, *ip);
6448                         --sp;
6449                         CHECK_OPSIZE (5);
6450                         klass = mono_class_get_full (image, read32 (ip + 1), generic_context);
6451                         if (!klass)
6452                                 goto load_error;
6453                         mono_class_init (klass);
6454                         ins->cil_code = ip;
6455
6456                         loc = mono_compile_create_var (cfg, &mono_defaults.typed_reference_class->byval_arg, OP_LOCAL);
6457                         NEW_TEMPLOADA (cfg, ins->inst_right, loc->inst_c0);
6458
6459                         NEW_PCONST (cfg, klassconst, klass);
6460                         NEW_GROUP (cfg, ins->inst_left, *sp, klassconst);
6461
6462                         MONO_ADD_INS (bblock, ins);
6463
6464                         NEW_TEMPLOAD (cfg, *sp, loc->inst_c0);
6465                         ++sp;
6466                         ip += 5;
6467                         break;
6468                 }
6469                 case CEE_LDTOKEN: {
6470                         gpointer handle;
6471                         MonoClass *handle_class;
6472
6473                         CHECK_STACK_OVF (1);
6474
6475                         CHECK_OPSIZE (5);
6476                         n = read32 (ip + 1);
6477
6478                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
6479                                 handle = mono_method_get_wrapper_data (method, n);
6480                                 handle_class = mono_method_get_wrapper_data (method, n + 1);
6481                                 if (handle_class == mono_defaults.typehandle_class)
6482                                         handle = &((MonoClass*)handle)->byval_arg;
6483                         }
6484                         else {
6485                                 handle = mono_ldtoken (image, n, &handle_class, generic_context);
6486                         }
6487                         if (!handle)
6488                                 goto load_error;
6489                         mono_class_init (handle_class);
6490
6491                         if (cfg->opt & MONO_OPT_SHARED) {
6492                                 int temp;
6493                                 MonoInst *res, *store, *addr, *vtvar, *iargs [3];
6494
6495                                 vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
6496
6497                                 NEW_IMAGECONST (cfg, iargs [0], image);
6498                                 NEW_ICONST (cfg, iargs [1], n);
6499                                 NEW_PCONST (cfg, iargs [2], generic_context);
6500                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldtoken_wrapper, iargs, ip);
6501                                 NEW_TEMPLOAD (cfg, res, temp);
6502                                 NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
6503                                 NEW_INDSTORE (cfg, store, addr, res, &mono_defaults.int_class->byval_arg);
6504                                 MONO_ADD_INS (bblock, store);
6505                                 NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
6506                         } else {
6507                                 if ((ip [5] == CEE_CALL) && (cmethod = mini_get_method (method, read32 (ip + 6), NULL, generic_context)) &&
6508                                                 (cmethod->klass == mono_defaults.monotype_class->parent) &&
6509                                                 (strcmp (cmethod->name, "GetTypeFromHandle") == 0) && ip_in_bb (cfg, bblock, ip + 5)) {
6510                                         MonoClass *tclass = mono_class_from_mono_type (handle);
6511                                         mono_class_init (tclass);
6512                                         if (cfg->compile_aot)
6513                                                 NEW_TYPE_FROM_HANDLE_CONST (cfg, ins, image, n);
6514                                         else
6515                                                 NEW_PCONST (cfg, ins, mono_type_get_object (cfg->domain, handle));
6516                                         ins->type = STACK_OBJ;
6517                                         ins->klass = cmethod->klass;
6518                                         ip += 5;
6519                                 } else {
6520                                         MonoInst *store, *addr, *vtvar;
6521
6522                                         if (cfg->compile_aot)
6523                                                 NEW_LDTOKENCONST (cfg, ins, image, n);
6524                                         else
6525                                                 NEW_PCONST (cfg, ins, handle);
6526                                         vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
6527                                         NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
6528                                         NEW_INDSTORE (cfg, store, addr, ins, &mono_defaults.int_class->byval_arg);
6529                                         MONO_ADD_INS (bblock, store);
6530                                         NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
6531                                 }
6532                         }
6533
6534                         *sp++ = ins;
6535                         ip += 5;
6536                         break;
6537                 }
6538                 case CEE_CONV_U2:
6539                 case CEE_CONV_U1:
6540                 case CEE_CONV_I:
6541                         CHECK_STACK (1);
6542                         ADD_UNOP (*ip);
6543                         ip++;
6544                         break;
6545                 case CEE_ADD_OVF:
6546                 case CEE_ADD_OVF_UN:
6547                 case CEE_MUL_OVF:
6548                 case CEE_MUL_OVF_UN:
6549                 case CEE_SUB_OVF:
6550                 case CEE_SUB_OVF_UN:
6551                         CHECK_STACK (2);
6552                         ADD_BINOP (*ip);
6553                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
6554                                 --sp;
6555                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
6556                         }
6557                         ip++;
6558                         break;
6559                 case CEE_ENDFINALLY:
6560                         MONO_INST_NEW (cfg, ins, *ip);
6561                         MONO_ADD_INS (bblock, ins);
6562                         ins->cil_code = ip++;
6563                         start_new_bblock = 1;
6564
6565                         /*
6566                          * Control will leave the method so empty the stack, otherwise
6567                          * the next basic block will start with a nonempty stack.
6568                          */
6569                         while (sp != stack_start) {
6570                                 MONO_INST_NEW (cfg, ins, CEE_POP);
6571                                 ins->cil_code = ip;
6572                                 sp--;
6573                                 ins->inst_i0 = *sp;
6574                                 MONO_ADD_INS (bblock, ins);
6575                         }
6576                         break;
6577                 case CEE_LEAVE:
6578                 case CEE_LEAVE_S: {
6579                         GList *handlers;
6580
6581                         if (*ip == CEE_LEAVE) {
6582                                 CHECK_OPSIZE (5);
6583                                 target = ip + 5 + (gint32)read32(ip + 1);
6584                         } else {
6585                                 CHECK_OPSIZE (2);
6586                                 target = ip + 2 + (signed char)(ip [1]);
6587                         }
6588
6589                         /* empty the stack */
6590                         while (sp != stack_start) {
6591                                 MONO_INST_NEW (cfg, ins, CEE_POP);
6592                                 ins->cil_code = ip;
6593                                 sp--;
6594                                 ins->inst_i0 = *sp;
6595                                 MONO_ADD_INS (bblock, ins);
6596                         }
6597
6598                         /*
6599                          * If this leave statement is in a catch block, check for a
6600                          * pending exception, and rethrow it if necessary.
6601                          */
6602                         for (i = 0; i < header->num_clauses; ++i) {
6603                                 MonoExceptionClause *clause = &header->clauses [i];
6604
6605                                 /*
6606                                  * Use <= in the final comparison to handle clauses with multiple
6607                                  * leave statements, like in bug #78024.
6608                                  * The ordering of the exception clauses guarantees that we find the
6609                                  * innermost clause.
6610                                  */
6611                                 if (MONO_OFFSET_IN_HANDLER (clause, ip - header->code) && (clause->flags == MONO_EXCEPTION_CLAUSE_NONE) && (ip - header->code + ((*ip == CEE_LEAVE) ? 5 : 2)) <= (clause->handler_offset + clause->handler_len)) {
6612                                         int temp;
6613                                         MonoInst *load;
6614
6615                                         NEW_TEMPLOAD (cfg, load, mono_find_exvar_for_offset (cfg, clause->handler_offset)->inst_c0);
6616                                         load->cil_code = ip;
6617
6618                                         temp = mono_emit_jit_icall (cfg, bblock, mono_thread_get_pending_exception, NULL, ip);
6619                                         NEW_TEMPLOAD (cfg, *sp, temp);
6620
6621                                         MONO_INST_NEW (cfg, ins, OP_THROW_OR_NULL);
6622                                         ins->inst_left = *sp;
6623                                         ins->inst_right = load;
6624                                         ins->cil_code = ip;
6625                                         MONO_ADD_INS (bblock, ins);
6626                                 }
6627                         }
6628
6629                         /* fixme: call fault handler ? */
6630
6631                         if ((handlers = mono_find_final_block (cfg, ip, target, MONO_EXCEPTION_CLAUSE_FINALLY))) {
6632                                 GList *tmp;
6633                                 for (tmp = handlers; tmp; tmp = tmp->next) {
6634                                         tblock = tmp->data;
6635                                         link_bblock (cfg, bblock, tblock);
6636                                         MONO_INST_NEW (cfg, ins, OP_CALL_HANDLER);
6637                                         ins->cil_code = ip;
6638                                         ins->inst_target_bb = tblock;
6639                                         MONO_ADD_INS (bblock, ins);
6640                                 }
6641                                 g_list_free (handlers);
6642                         }
6643
6644                         MONO_INST_NEW (cfg, ins, CEE_BR);
6645                         ins->cil_code = ip;
6646                         MONO_ADD_INS (bblock, ins);
6647                         GET_BBLOCK (cfg, bbhash, tblock, target);
6648                         link_bblock (cfg, bblock, tblock);
6649                         CHECK_BBLOCK (target, ip, tblock);
6650                         ins->inst_target_bb = tblock;
6651                         start_new_bblock = 1;
6652
6653                         if (*ip == CEE_LEAVE)
6654                                 ip += 5;
6655                         else
6656                                 ip += 2;
6657
6658                         break;
6659                 }
6660                 case CEE_STIND_I:
6661                         CHECK_STACK (2);
6662                         MONO_INST_NEW (cfg, ins, *ip);
6663                         sp -= 2;
6664                         handle_loaded_temps (cfg, bblock, stack_start, sp);
6665                         MONO_ADD_INS (bblock, ins);
6666                         ins->cil_code = ip++;
6667                         ins->inst_i0 = sp [0];
6668                         ins->inst_i1 = sp [1];
6669                         inline_costs += 1;
6670                         break;
6671                 case CEE_CONV_U:
6672                         CHECK_STACK (1);
6673                         ADD_UNOP (*ip);
6674                         ip++;
6675                         break;
6676                 /* trampoline mono specific opcodes */
6677                 case MONO_CUSTOM_PREFIX: {
6678
6679                         g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
6680
6681                         CHECK_OPSIZE (2);
6682                         switch (ip [1]) {
6683
6684                         case CEE_MONO_ICALL: {
6685                                 int temp;
6686                                 gpointer func;
6687                                 MonoJitICallInfo *info;
6688
6689                                 token = read32 (ip + 2);
6690                                 func = mono_method_get_wrapper_data (method, token);
6691                                 info = mono_find_jit_icall_by_addr (func);
6692                                 g_assert (info);
6693
6694                                 CHECK_STACK (info->sig->param_count);
6695                                 sp -= info->sig->param_count;
6696
6697                                 temp = mono_emit_jit_icall (cfg, bblock, info->func, sp, ip);
6698                                 if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
6699                                         NEW_TEMPLOAD (cfg, *sp, temp);
6700                                         sp++;
6701                                 }
6702
6703                                 ip += 6;
6704                                 inline_costs += 10 * num_calls++;
6705
6706                                 break;
6707                         }
6708                         case CEE_MONO_LDPTR:
6709                                 CHECK_STACK_OVF (1);
6710                                 CHECK_OPSIZE (6);
6711                                 token = read32 (ip + 2);
6712                                 NEW_PCONST (cfg, ins, mono_method_get_wrapper_data (method, token));
6713                                 ins->cil_code = ip;
6714                                 *sp++ = ins;
6715                                 ip += 6;
6716                                 inline_costs += 10 * num_calls++;
6717                                 /* Can't embed random pointers into AOT code */
6718                                 cfg->disable_aot = 1;
6719                                 break;
6720                         case CEE_MONO_VTADDR:
6721                                 CHECK_STACK (1);
6722                                 --sp;
6723                                 MONO_INST_NEW (cfg, ins, OP_VTADDR);
6724                                 ins->cil_code = ip;
6725                                 ins->type = STACK_MP;
6726                                 ins->inst_left = *sp;
6727                                 *sp++ = ins;
6728                                 ip += 2;
6729                                 break;
6730                         case CEE_MONO_NEWOBJ: {
6731                                 MonoInst *iargs [2];
6732                                 int temp;
6733                                 CHECK_STACK_OVF (1);
6734                                 CHECK_OPSIZE (6);
6735                                 token = read32 (ip + 2);
6736                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
6737                                 mono_class_init (klass);
6738                                 NEW_DOMAINCONST (cfg, iargs [0]);
6739                                 NEW_CLASSCONST (cfg, iargs [1], klass);
6740                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
6741                                 NEW_TEMPLOAD (cfg, *sp, temp);
6742                                 sp++;
6743                                 ip += 6;
6744                                 inline_costs += 10 * num_calls++;
6745                                 break;
6746                         }
6747                         case CEE_MONO_OBJADDR:
6748                                 CHECK_STACK (1);
6749                                 --sp;
6750                                 MONO_INST_NEW (cfg, ins, OP_OBJADDR);
6751                                 ins->cil_code = ip;
6752                                 ins->type = STACK_MP;
6753                                 ins->inst_left = *sp;
6754                                 *sp++ = ins;
6755                                 ip += 2;
6756                                 break;
6757                         case CEE_MONO_LDNATIVEOBJ:
6758                                 CHECK_STACK (1);
6759                                 CHECK_OPSIZE (6);
6760                                 token = read32 (ip + 2);
6761                                 klass = mono_method_get_wrapper_data (method, token);
6762                                 g_assert (klass->valuetype);
6763                                 mono_class_init (klass);
6764                                 NEW_INDLOAD (cfg, ins, sp [-1], &klass->byval_arg);
6765                                 sp [-1] = ins;
6766                                 ip += 6;
6767                                 break;
6768                         case CEE_MONO_RETOBJ:
6769                                 g_assert (cfg->ret);
6770                                 g_assert (mono_method_signature (method)->pinvoke);
6771                                 CHECK_STACK (1);
6772                                 --sp;
6773
6774                                 CHECK_OPSIZE (6);
6775                                 token = read32 (ip + 2);
6776                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
6777
6778                                 NEW_RETLOADA (cfg, ins);
6779                                 handle_stobj (cfg, bblock, ins, *sp, ip, klass, FALSE, TRUE, FALSE);
6780
6781                                 if (sp != stack_start)
6782                                         UNVERIFIED;
6783
6784                                 MONO_INST_NEW (cfg, ins, CEE_BR);
6785                                 ins->cil_code = ip;
6786                                 ins->inst_target_bb = end_bblock;
6787                                 MONO_ADD_INS (bblock, ins);
6788                                 link_bblock (cfg, bblock, end_bblock);
6789                                 start_new_bblock = 1;
6790                                 ip += 6;
6791                                 break;
6792                         case CEE_MONO_CISINST:
6793                         case CEE_MONO_CCASTCLASS: {
6794                                 int token;
6795                                 CHECK_STACK (1);
6796                                 --sp;
6797                                 CHECK_OPSIZE (6);
6798                                 token = read32 (ip + 2);
6799                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
6800                                 MONO_INST_NEW (cfg, ins, (ip [1] == CEE_MONO_CISINST) ? OP_CISINST : OP_CCASTCLASS);
6801                                 ins->type = STACK_I4;
6802                                 ins->inst_left = *sp;
6803                                 ins->inst_newa_class = klass;
6804                                 ins->cil_code = ip;
6805                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 6);
6806                                 ip += 6;
6807                                 break;
6808                         }
6809                         case CEE_MONO_SAVE_LMF:
6810                         case CEE_MONO_RESTORE_LMF:
6811 #ifdef MONO_ARCH_HAVE_LMF_OPS
6812                                 MONO_INST_NEW (cfg, ins, (ip [1] == CEE_MONO_SAVE_LMF) ? OP_SAVE_LMF : OP_RESTORE_LMF);
6813                                 MONO_ADD_INS (bblock, ins);
6814                                 cfg->need_lmf_area = TRUE;
6815 #endif
6816                                 ip += 2;
6817                                 break;
6818                         case CEE_MONO_CLASSCONST:
6819                                 CHECK_STACK_OVF (1);
6820                                 CHECK_OPSIZE (6);
6821                                 token = read32 (ip + 2);
6822                                 NEW_CLASSCONST (cfg, ins, mono_method_get_wrapper_data (method, token));
6823                                 ins->cil_code = ip;
6824                                 *sp++ = ins;
6825                                 ip += 6;
6826                                 inline_costs += 10 * num_calls++;
6827                                 break;
6828                         case CEE_MONO_NOT_TAKEN:
6829                                 bblock->out_of_line = TRUE;
6830                                 ip += 2;
6831                                 break;
6832                         default:
6833                                 g_error ("opcode 0x%02x 0x%02x not handled", MONO_CUSTOM_PREFIX, ip [1]);
6834                                 break;
6835                         }
6836                         break;
6837                 }
6838                 case CEE_PREFIX1: {
6839                         CHECK_OPSIZE (2);
6840                         switch (ip [1]) {
6841                         case CEE_ARGLIST: {
6842                                 /* somewhat similar to LDTOKEN */
6843                                 MonoInst *addr, *vtvar;
6844                                 CHECK_STACK_OVF (1);
6845                                 vtvar = mono_compile_create_var (cfg, &mono_defaults.argumenthandle_class->byval_arg, OP_LOCAL);
6846
6847                                 NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
6848                                 addr->cil_code = ip;
6849                                 MONO_INST_NEW (cfg, ins, OP_ARGLIST);
6850                                 ins->cil_code = ip;
6851                                 ins->inst_left = addr;
6852                                 MONO_ADD_INS (bblock, ins);
6853                                 NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
6854                                 ins->cil_code = ip;
6855                                 *sp++ = ins;
6856                                 ip += 2;
6857                                 break;
6858                         }
6859                         case CEE_CEQ:
6860                         case CEE_CGT:
6861                         case CEE_CGT_UN:
6862                         case CEE_CLT:
6863                         case CEE_CLT_UN: {
6864                                 MonoInst *cmp;
6865                                 CHECK_STACK (2);
6866                                 /*
6867                                  * The following transforms:
6868                                  *    CEE_CEQ    into OP_CEQ
6869                                  *    CEE_CGT    into OP_CGT
6870                                  *    CEE_CGT_UN into OP_CGT_UN
6871                                  *    CEE_CLT    into OP_CLT
6872                                  *    CEE_CLT_UN into OP_CLT_UN
6873                                  */
6874                                 MONO_INST_NEW (cfg, cmp, 256 + ip [1]);
6875
6876                                 MONO_INST_NEW (cfg, ins, cmp->opcode);
6877                                 sp -= 2;
6878                                 cmp->inst_i0 = sp [0];
6879                                 cmp->inst_i1 = sp [1];
6880                                 cmp->cil_code = ip;
6881                                 type_from_op (cmp);
6882                                 CHECK_TYPE (cmp);
6883                                 if ((sp [0]->type == STACK_I8) || ((sizeof (gpointer) == 8) && ((sp [0]->type == STACK_PTR) || (sp [0]->type == STACK_OBJ) || (sp [0]->type == STACK_MP))))
6884                                         cmp->opcode = OP_LCOMPARE;
6885                                 else
6886                                         cmp->opcode = OP_COMPARE;
6887                                 ins->cil_code = ip;
6888                                 ins->type = STACK_I4;
6889                                 ins->inst_i0 = cmp;
6890                                 *sp++ = ins;
6891                                 /* spill it to reduce the expression complexity
6892                                  * and workaround bug 54209
6893                                  */
6894                                 if (cmp->inst_left->type == STACK_I8) {
6895                                         --sp;
6896                                         *sp++ = emit_tree (cfg, bblock, ins, ip + 2);
6897                                 }
6898                                 ip += 2;
6899                                 break;
6900                         }
6901                         case CEE_LDFTN: {
6902                                 MonoInst *argconst;
6903                                 int temp;
6904
6905                                 CHECK_STACK_OVF (1);
6906                                 CHECK_OPSIZE (6);
6907                                 n = read32 (ip + 2);
6908                                 cmethod = mini_get_method (method, n, NULL, generic_context);
6909                                 if (!cmethod)
6910                                         goto load_error;
6911                                 mono_class_init (cmethod->klass);
6912
6913                                 if (mono_use_security_manager) {
6914                                         if (check_linkdemand (cfg, method, cmethod, bblock, ip))
6915                                                 INLINE_FAILURE;
6916                                 }
6917
6918                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6919
6920                                 NEW_METHODCONST (cfg, argconst, cmethod);
6921                                 if (method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED)
6922                                         temp = mono_emit_jit_icall (cfg, bblock, mono_ldftn, &argconst, ip);
6923                                 else
6924                                         temp = mono_emit_jit_icall (cfg, bblock, mono_ldftn_nosync, &argconst, ip);
6925                                 NEW_TEMPLOAD (cfg, *sp, temp);
6926                                 sp ++;
6927
6928                                 ip += 6;
6929                                 inline_costs += 10 * num_calls++;
6930                                 break;
6931                         }
6932                         case CEE_LDVIRTFTN: {
6933                                 MonoInst *args [2];
6934                                 int temp;
6935
6936                                 CHECK_STACK (1);
6937                                 CHECK_OPSIZE (6);
6938                                 n = read32 (ip + 2);
6939                                 cmethod = mini_get_method (method, n, NULL, generic_context);
6940                                 if (!cmethod)
6941                                         goto load_error;
6942                                 mono_class_init (cmethod->klass);
6943
6944                                 if (mono_use_security_manager) {
6945                                         if (check_linkdemand (cfg, method, cmethod, bblock, ip))
6946                                                 INLINE_FAILURE;
6947                                 }
6948
6949                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6950
6951                                 --sp;
6952                                 args [0] = *sp;
6953                                 NEW_METHODCONST (cfg, args [1], cmethod);
6954                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldvirtfn, args, ip);
6955                                 NEW_TEMPLOAD (cfg, *sp, temp);
6956                                 sp ++;
6957
6958                                 ip += 6;
6959                                 inline_costs += 10 * num_calls++;
6960                                 break;
6961                         }
6962                         case CEE_LDARG:
6963                                 CHECK_STACK_OVF (1);
6964                                 CHECK_OPSIZE (4);
6965                                 n = read16 (ip + 2);
6966                                 CHECK_ARG (n);
6967                                 NEW_ARGLOAD (cfg, ins, n);
6968                                 ins->cil_code = ip;
6969                                 *sp++ = ins;
6970                                 ip += 4;
6971                                 break;
6972                         case CEE_LDARGA:
6973                                 CHECK_STACK_OVF (1);
6974                                 CHECK_OPSIZE (4);
6975                                 n = read16 (ip + 2);
6976                                 CHECK_ARG (n);
6977                                 NEW_ARGLOADA (cfg, ins, n);
6978                                 ins->cil_code = ip;
6979                                 *sp++ = ins;
6980                                 ip += 4;
6981                                 break;
6982                         case CEE_STARG:
6983                                 CHECK_STACK (1);
6984                                 --sp;
6985                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6986                                 CHECK_OPSIZE (4);
6987                                 n = read16 (ip + 2);
6988                                 CHECK_ARG (n);
6989                                 NEW_ARGSTORE (cfg, ins, n, *sp);
6990                                 ins->cil_code = ip;
6991                                 if (!dont_verify_stloc && target_type_is_incompatible (cfg, param_types [n], *sp))
6992                                         UNVERIFIED;
6993                                 if (ins->opcode == CEE_STOBJ) {
6994                                         NEW_ARGLOADA (cfg, ins, n);
6995                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE, FALSE);
6996                                 } else
6997                                         MONO_ADD_INS (bblock, ins);
6998                                 ip += 4;
6999                                 break;
7000                         case CEE_LDLOC:
7001                                 CHECK_STACK_OVF (1);
7002                                 CHECK_OPSIZE (4);
7003                                 n = read16 (ip + 2);
7004                                 CHECK_LOCAL (n);
7005                                 NEW_LOCLOAD (cfg, ins, n);
7006                                 ins->cil_code = ip;
7007                                 *sp++ = ins;
7008                                 ip += 4;
7009                                 break;
7010                         case CEE_LDLOCA:
7011                                 CHECK_STACK_OVF (1);
7012                                 CHECK_OPSIZE (4);
7013                                 n = read16 (ip + 2);
7014                                 CHECK_LOCAL (n);
7015                                 NEW_LOCLOADA (cfg, ins, n);
7016                                 ins->cil_code = ip;
7017                                 *sp++ = ins;
7018                                 ip += 4;
7019                                 break;
7020                         case CEE_STLOC:
7021                                 CHECK_STACK (1);
7022                                 --sp;
7023                                 CHECK_OPSIZE (4);
7024                                 n = read16 (ip + 2);
7025                                 CHECK_LOCAL (n);
7026                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
7027                                 NEW_LOCSTORE (cfg, ins, n, *sp);
7028                                 if (!dont_verify_stloc && target_type_is_incompatible (cfg, header->locals [n], *sp))
7029                                         UNVERIFIED;
7030                                 ins->cil_code = ip;
7031                                 if (ins->opcode == CEE_STOBJ) {
7032                                         NEW_LOCLOADA (cfg, ins, n);
7033                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE, FALSE);
7034                                 } else
7035                                         MONO_ADD_INS (bblock, ins);
7036                                 ip += 4;
7037                                 inline_costs += 1;
7038                                 break;
7039                         case CEE_LOCALLOC:
7040                                 CHECK_STACK (1);
7041                                 --sp;
7042                                 if (sp != stack_start)
7043                                         UNVERIFIED;
7044                                 if (cfg->method != method)
7045                                         /*
7046                                          * Inlining this into a loop in a parent could lead to
7047                                          * stack overflows which is different behavior than the
7048                                          * non-inlined case, thus disable inlining in this case.
7049                                          */
7050                                         goto inline_failure;
7051                                 MONO_INST_NEW (cfg, ins, OP_LOCALLOC);
7052                                 ins->inst_left = *sp;
7053                                 ins->cil_code = ip;
7054                                 ins->type = STACK_PTR;
7055
7056                                 cfg->flags |= MONO_CFG_HAS_ALLOCA;
7057                                 if (header->init_locals)
7058                                         ins->flags |= MONO_INST_INIT;
7059
7060                                 *sp++ = ins;
7061                                 ip += 2;
7062                                 /* FIXME: set init flag if locals init is set in this method */
7063                                 break;
7064                         case CEE_ENDFILTER: {
7065                                 MonoExceptionClause *clause, *nearest;
7066                                 int cc, nearest_num;
7067
7068                                 CHECK_STACK (1);
7069                                 --sp;
7070                                 if ((sp != stack_start) || (sp [0]->type != STACK_I4))
7071                                         UNVERIFIED;
7072                                 MONO_INST_NEW (cfg, ins, OP_ENDFILTER);
7073                                 ins->inst_left = *sp;
7074                                 ins->cil_code = ip;
7075                                 MONO_ADD_INS (bblock, ins);
7076                                 start_new_bblock = 1;
7077                                 ip += 2;
7078
7079                                 nearest = NULL;
7080                                 nearest_num = 0;
7081                                 for (cc = 0; cc < header->num_clauses; ++cc) {
7082                                         clause = &header->clauses [cc];
7083                                         if ((clause->flags & MONO_EXCEPTION_CLAUSE_FILTER) &&
7084                                                 ((ip - header->code) > clause->data.filter_offset && (ip - header->code) <= clause->handler_offset) &&
7085                                             (!nearest || (clause->data.filter_offset < nearest->data.filter_offset))) {
7086                                                 nearest = clause;
7087                                                 nearest_num = cc;
7088                                         }
7089                                 }
7090                                 g_assert (nearest);
7091                                 if ((ip - header->code) != nearest->handler_offset)
7092                                         UNVERIFIED;
7093
7094                                 break;
7095                         }
7096                         case CEE_UNALIGNED_:
7097                                 ins_flag |= MONO_INST_UNALIGNED;
7098                                 /* FIXME: record alignment? we can assume 1 for now */
7099                                 CHECK_OPSIZE (3);
7100                                 ip += 3;
7101                                 break;
7102                         case CEE_VOLATILE_:
7103                                 ins_flag |= MONO_INST_VOLATILE;
7104                                 ip += 2;
7105                                 break;
7106                         case CEE_TAIL_:
7107                                 ins_flag   |= MONO_INST_TAILCALL;
7108                                 cfg->flags |= MONO_CFG_HAS_TAIL;
7109                                 /* Can't inline tail calls at this time */
7110                                 inline_costs += 100000;
7111                                 ip += 2;
7112                                 break;
7113                         case CEE_INITOBJ:
7114                                 CHECK_STACK (1);
7115                                 --sp;
7116                                 CHECK_OPSIZE (6);
7117                                 token = read32 (ip + 2);
7118                                 klass = mini_get_class (method, token, generic_context);
7119                                 if (!klass)
7120                                         goto load_error;
7121                                 if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
7122                                         MonoInst *store, *load;
7123                                         NEW_PCONST (cfg, load, NULL);
7124                                         load->cil_code = ip;
7125                                         load->type = STACK_OBJ;
7126                                         load->klass = klass;
7127                                         MONO_INST_NEW (cfg, store, CEE_STIND_REF);
7128                                         store->cil_code = ip;
7129                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
7130                                         MONO_ADD_INS (bblock, store);
7131                                         store->inst_i0 = sp [0];
7132                                         store->inst_i1 = load;
7133                                 } else {
7134                                         handle_initobj (cfg, bblock, *sp, NULL, klass, stack_start, sp);
7135                                 }
7136                                 ip += 6;
7137                                 inline_costs += 1;
7138                                 break;
7139                         case CEE_CONSTRAINED_:
7140                                 /* FIXME: implement */
7141                                 CHECK_OPSIZE (6);
7142                                 token = read32 (ip + 2);
7143                                 constrained_call = mono_class_get_full (image, token, generic_context);
7144                                 if (!constrained_call)
7145                                         goto load_error;
7146                                 ip += 6;
7147                                 break;
7148                         case CEE_CPBLK:
7149                         case CEE_INITBLK: {
7150                                 MonoInst *iargs [3];
7151                                 CHECK_STACK (3);
7152                                 sp -= 3;
7153                                 if ((cfg->opt & MONO_OPT_INTRINS) && (ip [1] == CEE_CPBLK) && (sp [2]->opcode == OP_ICONST) && ((n = sp [2]->inst_c0) <= sizeof (gpointer) * 5)) {
7154                                         MonoInst *copy;
7155                                         MONO_INST_NEW (cfg, copy, OP_MEMCPY);
7156                                         copy->inst_left = sp [0];
7157                                         copy->inst_right = sp [1];
7158                                         copy->cil_code = ip;
7159                                         copy->unused = n;
7160                                         MONO_ADD_INS (bblock, copy);
7161                                         ip += 2;
7162                                         break;
7163                                 }
7164                                 iargs [0] = sp [0];
7165                                 iargs [1] = sp [1];
7166                                 iargs [2] = sp [2];
7167                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
7168                                 if (ip [1] == CEE_CPBLK) {
7169                                         MonoMethod *memcpy_method = get_memcpy_method ();
7170                                         mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
7171                                 } else {
7172                                         MonoMethod *memset_method = get_memset_method ();
7173                                         mono_emit_method_call_spilled (cfg, bblock, memset_method, memset_method->signature, iargs, ip, NULL);
7174                                 }
7175                                 ip += 2;
7176                                 inline_costs += 1;
7177                                 break;
7178                         }
7179                         case CEE_NO_:
7180                                 CHECK_OPSIZE (3);
7181                                 if (ip [2] & 0x1)
7182                                         ins_flag |= MONO_INST_NOTYPECHECK;
7183                                 if (ip [2] & 0x2)
7184                                         ins_flag |= MONO_INST_NORANGECHECK;
7185                                 /* we ignore the no-nullcheck for now since we
7186                                  * really do it explicitly only when doing callvirt->call
7187                                  */
7188                                 ip += 3;
7189                                 break;
7190                         case CEE_RETHROW: {
7191                                 MonoInst *load;
7192                                 int handler_offset = -1;
7193
7194                                 for (i = 0; i < header->num_clauses; ++i) {
7195                                         MonoExceptionClause *clause = &header->clauses [i];
7196                                         if (MONO_OFFSET_IN_HANDLER (clause, ip - header->code) && !(clause->flags & MONO_EXCEPTION_CLAUSE_FINALLY))
7197                                                 handler_offset = clause->handler_offset;
7198                                 }
7199
7200                                 bblock->flags |= BB_EXCEPTION_UNSAFE;
7201
7202                                 g_assert (handler_offset != -1);
7203
7204                                 NEW_TEMPLOAD (cfg, load, mono_find_exvar_for_offset (cfg, handler_offset)->inst_c0);
7205                                 load->cil_code = ip;
7206                                 MONO_INST_NEW (cfg, ins, OP_RETHROW);
7207                                 ins->inst_left = load;
7208                                 ins->cil_code = ip;
7209                                 MONO_ADD_INS (bblock, ins);
7210                                 sp = stack_start;
7211                                 link_bblock (cfg, bblock, end_bblock);
7212                                 start_new_bblock = 1;
7213                                 ip += 2;
7214                                 break;
7215                         }
7216                         case CEE_SIZEOF:
7217                                 CHECK_STACK_OVF (1);
7218                                 CHECK_OPSIZE (6);
7219                                 token = read32 (ip + 2);
7220                                 /* FIXXME: handle generics. */
7221                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
7222                                         MonoType *type = mono_type_create_from_typespec (image, token);
7223                                         token = mono_type_size (type, &ialign);
7224                                 } else {
7225                                         MonoClass *klass = mono_class_get_full (image, token, generic_context);
7226                                         if (!klass)
7227                                                 goto load_error;
7228                                         mono_class_init (klass);
7229                                         token = mono_class_value_size (klass, &align);
7230                                 }
7231                                 NEW_ICONST (cfg, ins, token);
7232                                 ins->cil_code = ip;
7233                                 *sp++= ins;
7234                                 ip += 6;
7235                                 break;
7236                         case CEE_REFANYTYPE:
7237                                 CHECK_STACK (1);
7238                                 MONO_INST_NEW (cfg, ins, OP_REFANYTYPE);
7239                                 --sp;
7240                                 ins->type = STACK_MP;
7241                                 ins->inst_left = *sp;
7242                                 ins->type = STACK_VTYPE;
7243                                 ins->klass = mono_defaults.typehandle_class;
7244                                 ins->cil_code = ip;
7245                                 ip += 2;
7246                                 *sp++ = ins;
7247                                 break;
7248                         case CEE_READONLY_:
7249                                 ip += 2;
7250                                 break;
7251                         default:
7252                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
7253                         }
7254                         break;
7255                 }
7256                 default:
7257                         g_error ("opcode 0x%02x not handled", *ip);
7258                 }
7259         }
7260         if (start_new_bblock != 1)
7261                 UNVERIFIED;
7262
7263         bblock->cil_length = ip - bblock->cil_code;
7264         bblock->next_bb = end_bblock;
7265
7266         if (cfg->method == method && cfg->domainvar) {
7267                 MonoInst *store;
7268                 MonoInst *get_domain;
7269
7270                 if (! (get_domain = mono_arch_get_domain_intrinsic (cfg))) {
7271                         MonoCallInst *call;
7272
7273                         MONO_INST_NEW_CALL (cfg, call, CEE_CALL);
7274                         call->signature = helper_sig_domain_get;
7275                         call->inst.type = STACK_PTR;
7276                         call->fptr = mono_domain_get;
7277                         get_domain = (MonoInst*)call;
7278                 }
7279
7280                 NEW_TEMPSTORE (cfg, store, cfg->domainvar->inst_c0, get_domain);
7281                 MONO_ADD_INS (init_localsbb, store);
7282         }
7283
7284         if (cfg->method == method && cfg->got_var)
7285                 mono_emit_load_got_addr (cfg);
7286
7287         if (header->init_locals) {
7288                 MonoInst *store;
7289                 for (i = 0; i < header->num_locals; ++i) {
7290                         MonoType *ptype = header->locals [i];
7291                         int t = ptype->type;
7292                         if (t == MONO_TYPE_VALUETYPE && ptype->data.klass->enumtype)
7293                                 t = ptype->data.klass->enum_basetype->type;
7294                         if (ptype->byref) {
7295                                 NEW_PCONST (cfg, ins, NULL);
7296                                 NEW_LOCSTORE (cfg, store, i, ins);
7297                                 MONO_ADD_INS (init_localsbb, store);
7298                         } else if (t >= MONO_TYPE_BOOLEAN && t <= MONO_TYPE_U4) {
7299                                 NEW_ICONST (cfg, ins, 0);
7300                                 NEW_LOCSTORE (cfg, store, i, ins);
7301                                 MONO_ADD_INS (init_localsbb, store);
7302                         } else if (t == MONO_TYPE_I8 || t == MONO_TYPE_U8) {
7303                                 MONO_INST_NEW (cfg, ins, OP_I8CONST);
7304                                 ins->type = STACK_I8;
7305                                 ins->inst_l = 0;
7306                                 NEW_LOCSTORE (cfg, store, i, ins);
7307                                 MONO_ADD_INS (init_localsbb, store);
7308                         } else if (t == MONO_TYPE_R4 || t == MONO_TYPE_R8) {
7309                                 MONO_INST_NEW (cfg, ins, OP_R8CONST);
7310                                 ins->type = STACK_R8;
7311                                 ins->inst_p0 = (void*)&r8_0;
7312                                 NEW_LOCSTORE (cfg, store, i, ins);
7313                                 MONO_ADD_INS (init_localsbb, store);
7314                         } else if ((t == MONO_TYPE_VALUETYPE) || (t == MONO_TYPE_TYPEDBYREF) ||
7315                                    ((t == MONO_TYPE_GENERICINST) && mono_type_generic_inst_is_valuetype (ptype))) {
7316                                 NEW_LOCLOADA (cfg, ins, i);
7317                                 handle_initobj (cfg, init_localsbb, ins, NULL, mono_class_from_mono_type (ptype), NULL, NULL);
7318                         } else {
7319                                 NEW_PCONST (cfg, ins, NULL);
7320                                 NEW_LOCSTORE (cfg, store, i, ins);
7321                                 MONO_ADD_INS (init_localsbb, store);
7322                         }
7323                 }
7324         }
7325
7326         /* resolve backward branches in the middle of an existing basic block */
7327         for (tmp = bb_recheck; tmp; tmp = tmp->next) {
7328                 bblock = tmp->data;
7329                 /*g_print ("need recheck in %s at IL_%04x\n", method->name, bblock->cil_code - header->code);*/
7330                 tblock = find_previous (bbhash, start_bblock, bblock->cil_code);
7331                 if (tblock != start_bblock) {
7332                         int l;
7333                         split_bblock (cfg, tblock, bblock);
7334                         l = bblock->cil_code - header->code;
7335                         bblock->cil_length = tblock->cil_length - l;
7336                         tblock->cil_length = l;
7337                 } else {
7338                         g_print ("recheck failed.\n");
7339                 }
7340         }
7341
7342         if (cfg->method == method) {
7343                 MonoBasicBlock *bb;
7344                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
7345                         bb->region = mono_find_block_region (cfg, bb->real_offset);
7346                         if (cfg->spvars)
7347                                 mono_create_spvar_for_region (cfg, bb->region);
7348                         if (cfg->verbose_level > 2)
7349                                 g_print ("REGION BB%d IL_%04x ID_%08X\n", bb->block_num, bb->real_offset, bb->region);
7350                 }
7351         } else {
7352                 g_hash_table_destroy (bbhash);
7353         }
7354
7355         g_slist_free (class_inits);
7356         dont_inline = g_list_remove (dont_inline, method);
7357
7358         if (inline_costs < 0) {
7359                 char *mname;
7360
7361                 /* Method is too large */
7362                 mname = mono_method_full_name (method, TRUE);
7363                 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
7364                 cfg->exception_message = g_strdup_printf ("Method %s is too complex.", mname);
7365                 g_free (mname);
7366                 return -1;
7367         }
7368
7369         return inline_costs;
7370
7371  inline_failure:
7372         if (cfg->method != method)
7373                 g_hash_table_destroy (bbhash);
7374         g_slist_free (class_inits);
7375         dont_inline = g_list_remove (dont_inline, method);
7376         return -1;
7377
7378  load_error:
7379         if (cfg->method != method)
7380                 g_hash_table_destroy (bbhash);
7381         g_slist_free (class_inits);
7382         dont_inline = g_list_remove (dont_inline, method);
7383         cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
7384         return -1;
7385
7386  unverified:
7387         if (cfg->method != method)
7388                 g_hash_table_destroy (bbhash);
7389         g_slist_free (class_inits);
7390         dont_inline = g_list_remove (dont_inline, method);
7391         cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
7392         cfg->exception_message = g_strdup_printf ("Invalid IL code in %s: %s\n",
7393                  mono_method_full_name (method, TRUE), mono_disasm_code_one (NULL, method, ip, NULL));
7394         return -1;
7395 }
7396
7397 void
7398 mono_print_tree (MonoInst *tree) {
7399         int arity;
7400
7401         if (!tree)
7402                 return;
7403
7404         arity = mono_burg_arity [tree->opcode];
7405
7406         printf (" %s%s", arity?"(":"",  mono_inst_name (tree->opcode));
7407
7408         switch (tree->opcode) {
7409         case OP_ICONST:
7410                 printf ("[%d]", (int)tree->inst_c0);
7411                 break;
7412         case OP_I8CONST:
7413                 printf ("[%lld]", (long long)tree->inst_l);
7414                 break;
7415         case OP_R8CONST:
7416                 printf ("[%f]", *(double*)tree->inst_p0);
7417                 break;
7418         case OP_R4CONST:
7419                 printf ("[%f]", *(float*)tree->inst_p0);
7420                 break;
7421         case OP_ARG:
7422         case OP_LOCAL:
7423                 printf ("[%d]", (int)tree->inst_c0);
7424                 break;
7425         case OP_REGOFFSET:
7426                 if (tree->inst_offset < 0)
7427                         printf ("[-0x%x(%s)]", (int)(-tree->inst_offset), mono_arch_regname (tree->inst_basereg));
7428                 else
7429                         printf ("[0x%x(%s)]", (int)(tree->inst_offset), mono_arch_regname (tree->inst_basereg));
7430                 break;
7431         case OP_REGVAR:
7432                 printf ("[%s]", mono_arch_regname (tree->dreg));
7433                 break;
7434         case CEE_NEWARR:
7435                 printf ("[%s]",  tree->inst_newa_class->name);
7436                 mono_print_tree (tree->inst_newa_len);
7437                 break;
7438         case CEE_CALL:
7439         case CEE_CALLVIRT:
7440         case OP_FCALL:
7441         case OP_FCALLVIRT:
7442         case OP_LCALL:
7443         case OP_LCALLVIRT:
7444         case OP_VCALL:
7445         case OP_VCALLVIRT:
7446         case OP_VOIDCALL:
7447         case OP_VOIDCALLVIRT: {
7448                 MonoCallInst *call = (MonoCallInst*)tree;
7449                 if (call->method)
7450                         printf ("[%s]", call->method->name);
7451                 else if (call->fptr) {
7452                         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (call->fptr);
7453                         if (info)
7454                                 printf ("[%s]", info->name);
7455                 }
7456                 break;
7457         }
7458         case OP_PHI: {
7459                 int i;
7460                 printf ("[%d (", (int)tree->inst_c0);
7461                 for (i = 0; i < tree->inst_phi_args [0]; i++) {
7462                         if (i)
7463                                 printf (", ");
7464                         printf ("%d", tree->inst_phi_args [i + 1]);
7465                 }
7466                 printf (")]");
7467                 break;
7468         }
7469         case OP_RENAME:
7470         case OP_RETARG:
7471         case CEE_NOP:
7472         case CEE_JMP:
7473         case CEE_BREAK:
7474                 break;
7475         case OP_LOAD_MEMBASE:
7476         case OP_LOADI4_MEMBASE:
7477         case OP_LOADU4_MEMBASE:
7478         case OP_LOADU1_MEMBASE:
7479         case OP_LOADI1_MEMBASE:
7480         case OP_LOADU2_MEMBASE:
7481         case OP_LOADI2_MEMBASE:
7482                 printf ("[%s] <- [%s + 0x%x]", mono_arch_regname (tree->dreg), mono_arch_regname (tree->inst_basereg), (int)tree->inst_offset);
7483                 break;
7484         case CEE_BR:
7485         case OP_CALL_HANDLER:
7486                 printf ("[B%d]", tree->inst_target_bb->block_num);
7487                 break;
7488         case CEE_SWITCH:
7489         case CEE_ISINST:
7490         case CEE_CASTCLASS:
7491         case OP_OUTARG:
7492         case OP_CALL_REG:
7493         case OP_FCALL_REG:
7494         case OP_LCALL_REG:
7495         case OP_VCALL_REG:
7496         case OP_VOIDCALL_REG:
7497                 mono_print_tree (tree->inst_left);
7498                 break;
7499         case CEE_BNE_UN:
7500         case CEE_BEQ:
7501         case CEE_BLT:
7502         case CEE_BLT_UN:
7503         case CEE_BGT:
7504         case CEE_BGT_UN:
7505         case CEE_BGE:
7506         case CEE_BGE_UN:
7507         case CEE_BLE:
7508         case CEE_BLE_UN:
7509                 printf ("[B%dB%d]", tree->inst_true_bb->block_num, tree->inst_false_bb->block_num);
7510                 mono_print_tree (tree->inst_left);
7511                 break;
7512         default:
7513                 if (!mono_arch_print_tree(tree, arity)) {
7514                         if (arity) {
7515                                 mono_print_tree (tree->inst_left);
7516                                 if (arity > 1)
7517                                         mono_print_tree (tree->inst_right);
7518                         }
7519                 }
7520                 break;
7521         }
7522
7523         if (arity)
7524                 printf (")");
7525 }
7526
7527 void
7528 mono_print_tree_nl (MonoInst *tree)
7529 {
7530         mono_print_tree (tree);
7531         printf ("\n");
7532 }
7533
7534 static void
7535 create_helper_signature (void)
7536 {
7537         helper_sig_domain_get = mono_create_icall_signature ("ptr");
7538         helper_sig_class_init_trampoline = mono_create_icall_signature ("void");
7539 }
7540
7541 gconstpointer
7542 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
7543 {
7544         char *name;
7545         MonoMethod *wrapper;
7546
7547         if (callinfo->wrapper) {
7548                 return callinfo->wrapper;
7549         }
7550
7551         if (callinfo->trampoline)
7552                 return callinfo->trampoline;
7553
7554         name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
7555         wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func);
7556         g_free (name);
7557
7558         callinfo->trampoline = mono_create_ftnptr (mono_get_root_domain (), mono_create_jit_trampoline_in_domain (mono_get_root_domain (), wrapper));
7559         mono_register_jit_icall_wrapper (callinfo, callinfo->trampoline);
7560
7561         return callinfo->trampoline;
7562 }
7563
7564 static void
7565 mono_init_trampolines (void)
7566 {
7567         mono_trampoline_code [MONO_TRAMPOLINE_GENERIC] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_GENERIC);
7568         mono_trampoline_code [MONO_TRAMPOLINE_JUMP] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_JUMP);
7569         mono_trampoline_code [MONO_TRAMPOLINE_CLASS_INIT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_CLASS_INIT);
7570 #ifdef MONO_ARCH_HAVE_PIC_AOT
7571         mono_trampoline_code [MONO_TRAMPOLINE_AOT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_AOT);
7572         mono_trampoline_code [MONO_TRAMPOLINE_AOT_PLT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_AOT_PLT);
7573 #endif
7574 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
7575         mono_trampoline_code [MONO_TRAMPOLINE_DELEGATE] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_DELEGATE);
7576 #endif
7577 }
7578
7579 static void
7580 mono_init_exceptions (void)
7581 {
7582 #ifndef CUSTOM_EXCEPTION_HANDLING
7583         mono_arch_get_restore_context ();
7584         mono_arch_get_call_filter ();
7585         mono_arch_get_throw_exception ();
7586         mono_arch_get_rethrow_exception ();
7587 #endif
7588 }
7589
7590 guint8 *
7591 mono_get_trampoline_code (MonoTrampolineType tramp_type)
7592 {
7593         return mono_trampoline_code [tramp_type];
7594 }
7595
7596 gpointer
7597 mono_create_class_init_trampoline (MonoVTable *vtable)
7598 {
7599         gpointer code, ptr;
7600
7601         /* previously created trampoline code */
7602         mono_domain_lock (vtable->domain);
7603         ptr =
7604                 g_hash_table_lookup (vtable->domain->class_init_trampoline_hash,
7605                                                                   vtable);
7606         mono_domain_unlock (vtable->domain);
7607         if (ptr)
7608                 return ptr;
7609
7610 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
7611         code = mono_arch_create_specific_trampoline (vtable, MONO_TRAMPOLINE_CLASS_INIT, vtable->domain, NULL);
7612 #else
7613         code = mono_arch_create_class_init_trampoline (vtable);
7614 #endif
7615
7616         ptr = mono_create_ftnptr (vtable->domain, code);
7617
7618         /* store trampoline address */
7619         mono_domain_lock (vtable->domain);
7620         g_hash_table_insert (vtable->domain->class_init_trampoline_hash,
7621                                                           vtable, ptr);
7622         mono_domain_unlock (vtable->domain);
7623
7624         mono_jit_lock ();
7625         if (!class_init_hash_addr)
7626                 class_init_hash_addr = g_hash_table_new (NULL, NULL);
7627         g_hash_table_insert (class_init_hash_addr, ptr, vtable);
7628         mono_jit_unlock ();
7629
7630         return ptr;
7631 }
7632
7633 gpointer
7634 mono_create_jump_trampoline (MonoDomain *domain, MonoMethod *method,
7635                                                          gboolean add_sync_wrapper)
7636 {
7637         MonoJitInfo *ji;
7638         gpointer code;
7639 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
7640         guint32 code_size;
7641 #endif
7642
7643         if (add_sync_wrapper && method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
7644                 return mono_create_jump_trampoline (domain, mono_marshal_get_synchronized_wrapper (method), FALSE);
7645
7646         code = mono_jit_find_compiled_method (domain, method);
7647         if (code)
7648                 return code;
7649
7650         mono_domain_lock (domain);
7651         code = g_hash_table_lookup (domain->jump_trampoline_hash, method);
7652         mono_domain_unlock (domain);
7653         if (code)
7654                 return code;
7655
7656 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
7657         code = mono_arch_create_specific_trampoline (method, MONO_TRAMPOLINE_JUMP, mono_domain_get (), &code_size);
7658
7659         mono_domain_lock (domain);
7660         ji = mono_mempool_alloc0 (domain->mp, sizeof (MonoJitInfo));
7661         mono_domain_unlock (domain);
7662         ji->code_start = code;
7663         ji->code_size = code_size;
7664         ji->method = method;
7665 #else
7666         ji = mono_arch_create_jump_trampoline (method);
7667 #endif
7668
7669         /*
7670          * mono_delegate_ctor needs to find the method metadata from the
7671          * trampoline address, so we save it here.
7672          */
7673
7674         mono_jit_info_table_add (domain, ji);
7675
7676         mono_domain_lock (domain);
7677         g_hash_table_insert (domain->jump_trampoline_hash, method, ji->code_start);
7678         mono_domain_unlock (domain);
7679
7680         return ji->code_start;
7681 }
7682
7683 static gpointer
7684 mono_create_jit_trampoline_in_domain (MonoDomain *domain, MonoMethod *method)
7685 {
7686         gpointer tramp;
7687
7688         mono_domain_lock (domain);
7689         tramp = g_hash_table_lookup (domain->jit_trampoline_hash, method);
7690         mono_domain_unlock (domain);
7691         if (tramp)
7692                 return tramp;
7693
7694         if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
7695                 return mono_create_jit_trampoline (mono_marshal_get_synchronized_wrapper (method));
7696
7697 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
7698         tramp =  mono_arch_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC, domain, NULL);
7699 #else
7700         tramp = mono_arch_create_jit_trampoline (method);
7701 #endif
7702
7703         mono_domain_lock (domain);
7704         g_hash_table_insert (domain->jit_trampoline_hash, method, tramp);
7705         mono_domain_unlock (domain);
7706
7707         mono_jit_stats.method_trampolines++;
7708
7709         return tramp;
7710 }
7711
7712 gpointer
7713 mono_create_jit_trampoline (MonoMethod *method)
7714 {
7715         return mono_create_jit_trampoline_in_domain (mono_domain_get (), method);
7716 }
7717
7718 #ifdef MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
7719 gpointer
7720 mono_create_jit_trampoline_from_token (MonoImage *image, guint32 token)
7721 {
7722         gpointer tramp;
7723
7724         MonoDomain *domain = mono_domain_get ();
7725         guint8 *buf, *start;
7726
7727         mono_domain_lock (domain);
7728         buf = start = mono_code_manager_reserve (domain->code_mp, 2 * sizeof (gpointer));
7729         mono_domain_unlock (domain);
7730
7731         *(gpointer*)(gpointer)buf = image;
7732         buf += sizeof (gpointer);
7733         *(guint32*)(gpointer)buf = token;
7734
7735         tramp = mono_arch_create_specific_trampoline (start, MONO_TRAMPOLINE_AOT, domain, NULL);
7736
7737         mono_jit_stats.method_trampolines++;
7738
7739         return tramp;
7740 }
7741 #endif
7742
7743 static gpointer
7744 mono_create_delegate_trampoline (MonoMethod *method, gpointer addr)
7745 {
7746 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
7747         gpointer code, ptr;
7748         guint32 code_size;
7749         MonoDomain *domain = mono_domain_get ();
7750
7751 #ifndef __ia64__
7752         code = mono_jit_find_compiled_method (domain, method);
7753         if (code)
7754                 return code;
7755 #else
7756         /*
7757          * FIXME: We should return a function descriptor here but it is not stored
7758          * anywhere so it would be leaked.
7759          */
7760 #endif
7761
7762         mono_domain_lock (domain);
7763         ptr = g_hash_table_lookup (domain->delegate_trampoline_hash, method);
7764         mono_domain_unlock (domain);
7765         if (ptr)
7766                 return ptr;
7767
7768         code = mono_arch_create_specific_trampoline (method, MONO_TRAMPOLINE_DELEGATE, domain, &code_size);
7769
7770         ptr = mono_create_ftnptr (domain, code);
7771
7772         /* store trampoline address */
7773         mono_domain_lock (domain);
7774         g_hash_table_insert (domain->delegate_trampoline_hash,
7775                                                           method, ptr);
7776         mono_domain_unlock (domain);
7777
7778         return ptr;
7779 #else
7780         return addr;
7781 #endif
7782 }
7783
7784 MonoVTable*
7785 mono_find_class_init_trampoline_by_addr (gconstpointer addr)
7786 {
7787         MonoVTable *res;
7788
7789         mono_jit_lock ();
7790         if (class_init_hash_addr)
7791                 res = g_hash_table_lookup (class_init_hash_addr, addr);
7792         else
7793                 res = NULL;
7794         mono_jit_unlock ();
7795         return res;
7796 }
7797
7798 static void
7799 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
7800 {
7801         if (!domain->dynamic_code_hash)
7802                 domain->dynamic_code_hash = g_hash_table_new (NULL, NULL);
7803         g_hash_table_insert (domain->dynamic_code_hash, method, ji);
7804 }
7805
7806 static MonoJitDynamicMethodInfo*
7807 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
7808 {
7809         MonoJitDynamicMethodInfo *res;
7810
7811         if (domain->dynamic_code_hash)
7812                 res = g_hash_table_lookup (domain->dynamic_code_hash, method);
7813         else
7814                 res = NULL;
7815         return res;
7816 }
7817
7818 typedef struct {
7819         MonoClass *vtype;
7820         GList *active;
7821         GList *slots;
7822 } StackSlotInfo;
7823
7824 /*
7825  * mono_allocate_stack_slots_full:
7826  *
7827  *  Allocate stack slots for all non register allocated variables using a
7828  * linear scan algorithm.
7829  * Returns: an array of stack offsets which the caller should free.
7830  * STACK_SIZE is set to the amount of stack space needed.
7831  * STACK_ALIGN is set to the alignment needed by the locals area.
7832  */
7833 gint32*
7834 mono_allocate_stack_slots_full (MonoCompile *m, gboolean backward, guint32 *stack_size, guint32 *stack_align)
7835 {
7836         int i, slot, offset, size;
7837         guint32 align;
7838         MonoMethodVar *vmv;
7839         MonoInst *inst;
7840         gint32 *offsets;
7841         GList *vars = NULL, *l;
7842         StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
7843         MonoType *t;
7844         int nvtypes;
7845
7846         scalar_stack_slots = g_new0 (StackSlotInfo, MONO_TYPE_PINNED);
7847         vtype_stack_slots = g_new0 (StackSlotInfo, 256);
7848         nvtypes = 0;
7849
7850         offsets = g_new (gint32, m->num_varinfo);
7851         for (i = 0; i < m->num_varinfo; ++i)
7852                 offsets [i] = -1;
7853
7854         for (i = m->locals_start; i < m->num_varinfo; i++) {
7855                 inst = m->varinfo [i];
7856                 vmv = MONO_VARINFO (m, i);
7857
7858                 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
7859                         continue;
7860
7861                 vars = g_list_prepend (vars, vmv);
7862         }
7863
7864         vars = mono_varlist_sort (m, vars, 0);
7865         offset = 0;
7866         *stack_align = 0;
7867         for (l = vars; l; l = l->next) {
7868                 vmv = l->data;
7869                 inst = m->varinfo [vmv->idx];
7870
7871                 /* inst->unused indicates native sized value types, this is used by the
7872                 * pinvoke wrappers when they call functions returning structures */
7873                 if (inst->unused && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF)
7874                         size = mono_class_native_size (inst->inst_vtype->data.klass, &align);
7875                 else {
7876                         int ialign;
7877
7878                         size = mono_type_size (inst->inst_vtype, &ialign);
7879                         align = ialign;
7880                 }
7881
7882                 t = mono_type_get_underlying_type (inst->inst_vtype);
7883                 switch (t->type) {
7884                 case MONO_TYPE_GENERICINST:
7885                         if (!mono_type_generic_inst_is_valuetype (t)) {
7886                                 slot_info = &scalar_stack_slots [t->type];
7887                                 break;
7888                         }
7889                         /* Fall through */
7890                 case MONO_TYPE_VALUETYPE:
7891                         for (i = 0; i < nvtypes; ++i)
7892                                 if (t->data.klass == vtype_stack_slots [i].vtype)
7893                                         break;
7894                         if (i < nvtypes)
7895                                 slot_info = &vtype_stack_slots [i];
7896                         else {
7897                                 g_assert (nvtypes < 256);
7898                                 vtype_stack_slots [nvtypes].vtype = t->data.klass;
7899                                 slot_info = &vtype_stack_slots [nvtypes];
7900                                 nvtypes ++;
7901                         }
7902                         break;
7903                 default:
7904                         slot_info = &scalar_stack_slots [t->type];
7905                 }
7906
7907                 slot = 0xffffff;
7908                 if (m->comp_done & MONO_COMP_LIVENESS) {
7909                         //printf ("START  %2d %08x %08x\n",  vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
7910
7911                         /* expire old intervals in active */
7912                         while (slot_info->active) {
7913                                 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
7914
7915                                 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
7916                                         break;
7917
7918                                 //printf ("EXPIR  %2d %08x %08x C%d R%d\n", amv->idx, amv->range.first_use.abs_pos, amv->range.last_use.abs_pos, amv->spill_costs, amv->reg);
7919
7920                                 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
7921                                 slot_info->slots = g_list_prepend (slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
7922                         }
7923
7924                         /*
7925                          * This also handles the case when the variable is used in an
7926                          * exception region, as liveness info is not computed there.
7927                          */
7928                         /*
7929                          * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
7930                          * opcodes.
7931                          */
7932                         if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
7933                                 if (slot_info->slots) {
7934                                         slot = GPOINTER_TO_INT (slot_info->slots->data);
7935
7936                                         slot_info->slots = g_list_delete_link (slot_info->slots, slot_info->slots);
7937                                 }
7938
7939                                 slot_info->active = mono_varlist_insert_sorted (m, slot_info->active, vmv, TRUE);
7940                         }
7941                 }
7942
7943                 {
7944                         static int count = 0;
7945                         count ++;
7946
7947                         /*
7948                         if (count == atoi (getenv ("COUNT")))
7949                                 printf ("LAST: %s\n", mono_method_full_name (m->method, TRUE));
7950                         if (count > atoi (getenv ("COUNT")))
7951                                 slot = 0xffffff;
7952                         else {
7953                                 mono_print_tree_nl (inst);
7954                                 }
7955                         */
7956                 }
7957                 if (slot == 0xffffff) {
7958                         /*
7959                          * Allways allocate valuetypes to sizeof (gpointer) to allow more
7960                          * efficient copying (and to work around the fact that OP_MEMCPY
7961                          * and OP_MEMSET ignores alignment).
7962                          */
7963                         if (MONO_TYPE_ISSTRUCT (t))
7964                                 align = sizeof (gpointer);
7965
7966                         if (backward) {
7967                                 offset += size;
7968                                 offset += align - 1;
7969                                 offset &= ~(align - 1);
7970                                 slot = offset;
7971                         }
7972                         else {
7973                                 offset += align - 1;
7974                                 offset &= ~(align - 1);
7975                                 slot = offset;
7976                                 offset += size;
7977                         }
7978
7979                         if (*stack_align == 0)
7980                                 *stack_align = align;
7981                 }
7982
7983                 offsets [vmv->idx] = slot;
7984         }
7985         g_list_free (vars);
7986         for (i = 0; i < MONO_TYPE_PINNED; ++i) {
7987                 g_list_free (scalar_stack_slots [i].active);
7988                 g_list_free (scalar_stack_slots [i].slots);
7989         }
7990         for (i = 0; i < nvtypes; ++i) {
7991                 g_list_free (vtype_stack_slots [i].active);
7992                 g_list_free (vtype_stack_slots [i].slots);
7993         }
7994         g_free (scalar_stack_slots);
7995         g_free (vtype_stack_slots);
7996
7997         *stack_size = offset;
7998         return offsets;
7999 }
8000
8001 gint32*
8002 mono_allocate_stack_slots (MonoCompile *m, guint32 *stack_size, guint32 *stack_align)
8003 {
8004         return mono_allocate_stack_slots_full (m, TRUE, stack_size, stack_align);
8005 }
8006
8007 void
8008 mono_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, gboolean no_throw)
8009 {
8010         MonoJitICallInfo *info;
8011         MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
8012
8013         if (!emul_opcode_map)
8014                 emul_opcode_map = g_new0 (MonoJitICallInfo*, OP_LAST + 1);
8015
8016         g_assert (!sig->hasthis);
8017         g_assert (sig->param_count < 3);
8018
8019         info = mono_register_jit_icall (func, name, sig, no_throw);
8020
8021         emul_opcode_map [opcode] = info;
8022 }
8023
8024 static void
8025 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
8026 {
8027         MonoMethodSignature *sig;
8028
8029         if (sigstr)
8030                 sig = mono_create_icall_signature (sigstr);
8031         else
8032                 sig = NULL;
8033
8034         mono_register_jit_icall (func, name, sig, save);
8035 }
8036
8037 static void
8038 decompose_foreach (MonoInst *tree, gpointer data)
8039 {
8040         static MonoJitICallInfo *newarr_info = NULL;
8041         static MonoJitICallInfo *newarr_specific_info = NULL;
8042         MonoJitICallInfo *info;
8043         int i;
8044
8045         switch (tree->opcode) {
8046         case CEE_NEWARR: {
8047                 MonoCompile *cfg = data;
8048                 MonoInst *iargs [3];
8049
8050                 if (!newarr_info) {
8051                         newarr_info = mono_find_jit_icall_by_addr (mono_array_new);
8052                         g_assert (newarr_info);
8053                         newarr_specific_info = mono_find_jit_icall_by_addr (mono_array_new_specific);
8054                         g_assert (newarr_specific_info);
8055                 }
8056
8057                 if (cfg->opt & MONO_OPT_SHARED) {
8058                         NEW_DOMAINCONST (cfg, iargs [0]);
8059                         NEW_CLASSCONST (cfg, iargs [1], tree->inst_newa_class);
8060                         iargs [2] = tree->inst_newa_len;
8061
8062                         info = newarr_info;
8063                 }
8064                 else {
8065                         MonoVTable *vtable = mono_class_vtable (cfg->domain, mono_array_class_get (tree->inst_newa_class, 1));
8066
8067                         NEW_VTABLECONST (cfg, iargs [0], vtable);
8068                         iargs [1] = tree->inst_newa_len;
8069
8070                         info = newarr_specific_info;
8071                 }
8072
8073                 mono_emulate_opcode (cfg, tree, iargs, info);
8074
8075                 /* Need to decompose arguments after the the opcode is decomposed */
8076                 for (i = 0; i < info->sig->param_count; ++i)
8077                         dec_foreach (iargs [i], cfg);
8078                 break;
8079         }
8080
8081         default:
8082                 break;
8083         }
8084 }
8085
8086 void
8087 mono_inst_foreach (MonoInst *tree, MonoInstFunc func, gpointer data) {
8088
8089         switch (mono_burg_arity [tree->opcode]) {
8090         case 0: break;
8091         case 1:
8092                 mono_inst_foreach (tree->inst_left, func, data);
8093                 break;
8094         case 2:
8095                 mono_inst_foreach (tree->inst_left, func, data);
8096                 mono_inst_foreach (tree->inst_right, func, data);
8097                 break;
8098         default:
8099                 g_assert_not_reached ();
8100         }
8101         func (tree, data);
8102 }
8103
8104 G_GNUC_UNUSED
8105 static void
8106 mono_print_bb_code (MonoBasicBlock *bb) {
8107         if (bb->code) {
8108                 MonoInst *c = bb->code;
8109                 while (c) {
8110                         mono_print_tree (c);
8111                         g_print ("\n");
8112                         c = c->next;
8113                 }
8114         }
8115 }
8116
8117 static void
8118 print_dfn (MonoCompile *cfg) {
8119         int i, j;
8120         char *code;
8121         MonoBasicBlock *bb;
8122
8123         g_print ("IR code for method %s\n", mono_method_full_name (cfg->method, TRUE));
8124
8125         for (i = 0; i < cfg->num_bblocks; ++i) {
8126                 bb = cfg->bblocks [i];
8127                 /*if (bb->cil_code) {
8128                         char* code1, *code2;
8129                         code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
8130                         if (bb->last_ins->cil_code)
8131                                 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
8132                         else
8133                                 code2 = g_strdup ("");
8134
8135                         code1 [strlen (code1) - 1] = 0;
8136                         code = g_strdup_printf ("%s -> %s", code1, code2);
8137                         g_free (code1);
8138                         g_free (code2);
8139                 } else*/
8140                         code = g_strdup ("\n");
8141                 g_print ("\nBB%d DFN%d (len: %d): %s", bb->block_num, i, bb->cil_length, code);
8142                 if (bb->code) {
8143                         MonoInst *c = bb->code;
8144                         while (c) {
8145                                 mono_print_tree (c);
8146                                 g_print ("\n");
8147                                 c = c->next;
8148                         }
8149                 } else {
8150
8151                 }
8152
8153                 g_print ("\tprev:");
8154                 for (j = 0; j < bb->in_count; ++j) {
8155                         g_print (" BB%d", bb->in_bb [j]->block_num);
8156                 }
8157                 g_print ("\t\tsucc:");
8158                 for (j = 0; j < bb->out_count; ++j) {
8159                         g_print (" BB%d", bb->out_bb [j]->block_num);
8160                 }
8161                 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
8162
8163                 if (bb->idom)
8164                         g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
8165
8166                 if (bb->dominators)
8167                         mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
8168                 if (bb->dfrontier)
8169                         mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
8170                 g_free (code);
8171         }
8172
8173         g_print ("\n");
8174 }
8175
8176 void
8177 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
8178 {
8179         inst->next = NULL;
8180         if (bb->last_ins) {
8181                 g_assert (bb->code);
8182                 bb->last_ins->next = inst;
8183                 bb->last_ins = inst;
8184         } else {
8185                 bb->last_ins = bb->code = inst;
8186         }
8187 }
8188
8189 void
8190 mono_destroy_compile (MonoCompile *cfg)
8191 {
8192         //mono_mempool_stats (cfg->mempool);
8193         g_hash_table_destroy (cfg->bb_hash);
8194         mono_free_loop_info (cfg);
8195         if (cfg->rs)
8196                 mono_regstate_free (cfg->rs);
8197         if (cfg->spvars)
8198                 g_hash_table_destroy (cfg->spvars);
8199         if (cfg->exvars)
8200                 g_hash_table_destroy (cfg->exvars);
8201         mono_mempool_destroy (cfg->mempool);
8202         g_list_free (cfg->ldstr_list);
8203
8204         g_free (cfg->varinfo);
8205         g_free (cfg->vars);
8206         g_free (cfg->exception_message);
8207         g_free (cfg);
8208 }
8209
8210 #ifdef HAVE_KW_THREAD
8211 static __thread gpointer mono_lmf_addr MONO_TLS_FAST;
8212 #endif
8213
8214 guint32
8215 mono_get_jit_tls_key (void)
8216 {
8217         return mono_jit_tls_id;
8218 }
8219
8220 gint32
8221 mono_get_lmf_tls_offset (void)
8222 {
8223         int offset;
8224         MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
8225         return offset;
8226 }
8227
8228 MonoLMF **
8229 mono_get_lmf_addr (void)
8230 {
8231 #ifdef HAVE_KW_THREAD
8232         return mono_lmf_addr;
8233 #else
8234         MonoJitTlsData *jit_tls;
8235
8236         if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
8237                 return &jit_tls->lmf;
8238
8239         g_assert_not_reached ();
8240         return NULL;
8241 #endif
8242 }
8243
8244 /* Called by native->managed wrappers */
8245 void
8246 mono_jit_thread_attach (MonoDomain *domain)
8247 {
8248 #ifdef HAVE_KW_THREAD
8249         if (!mono_lmf_addr) {
8250                 mono_thread_attach (domain);
8251         }
8252 #else
8253         if (!TlsGetValue (mono_jit_tls_id))
8254                 mono_thread_attach (domain);
8255 #endif
8256 }
8257
8258 /**
8259  * mono_thread_abort:
8260  * @obj: exception object
8261  *
8262  * abort the thread, print exception information and stack trace
8263  */
8264 static void
8265 mono_thread_abort (MonoObject *obj)
8266 {
8267         /* MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id); */
8268
8269         /* handle_remove should be eventually called for this thread, too
8270         g_free (jit_tls);*/
8271
8272         mono_thread_exit ();
8273 }
8274
8275 static void*
8276 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
8277 {
8278         MonoJitTlsData *jit_tls;
8279         MonoLMF *lmf;
8280
8281         jit_tls = TlsGetValue (mono_jit_tls_id);
8282         if (jit_tls)
8283                 return jit_tls;
8284
8285         jit_tls = g_new0 (MonoJitTlsData, 1);
8286
8287         TlsSetValue (mono_jit_tls_id, jit_tls);
8288
8289         jit_tls->abort_func = abort_func;
8290         jit_tls->end_of_stack = stack_start;
8291
8292         lmf = g_new0 (MonoLMF, 1);
8293         lmf->ebp = -1;
8294
8295         jit_tls->lmf = jit_tls->first_lmf = lmf;
8296
8297 #ifdef HAVE_KW_THREAD
8298         mono_lmf_addr = &jit_tls->lmf;
8299 #endif
8300
8301         mono_arch_setup_jit_tls_data (jit_tls);
8302
8303 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
8304         mono_setup_altstack (jit_tls);
8305 #endif
8306
8307         return jit_tls;
8308 }
8309
8310 static void
8311 mono_thread_start_cb (gsize tid, gpointer stack_start, gpointer func)
8312 {
8313         MonoThread *thread;
8314         void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
8315         thread = mono_thread_current ();
8316         if (thread)
8317                 thread->jit_data = jit_tls;
8318 }
8319
8320 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
8321
8322 static void
8323 mono_thread_abort_dummy (MonoObject *obj)
8324 {
8325   if (mono_thread_attach_aborted_cb)
8326     mono_thread_attach_aborted_cb (obj);
8327   else
8328     mono_thread_abort (obj);
8329 }
8330
8331 static void
8332 mono_thread_attach_cb (gsize tid, gpointer stack_start)
8333 {
8334         MonoThread *thread;
8335         void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
8336         thread = mono_thread_current ();
8337         if (thread)
8338                 thread->jit_data = jit_tls;
8339         if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
8340                 setup_stat_profiler ();
8341 }
8342
8343 static void
8344 mini_thread_cleanup (MonoThread *thread)
8345 {
8346         MonoJitTlsData *jit_tls = thread->jit_data;
8347
8348         if (jit_tls) {
8349                 mono_arch_free_jit_tls_data (jit_tls);
8350
8351 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
8352                 mono_free_altstack (jit_tls);
8353 #endif
8354                 g_free (jit_tls->first_lmf);
8355                 g_free (jit_tls);
8356                 thread->jit_data = NULL;
8357                 TlsSetValue (mono_jit_tls_id, NULL);
8358         }
8359 }
8360
8361 void
8362 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
8363 {
8364         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
8365
8366         ji->ip.i = ip;
8367         ji->type = type;
8368         ji->data.target = target;
8369         ji->next = cfg->patch_info;
8370
8371         cfg->patch_info = ji;
8372 }
8373
8374 void
8375 mono_remove_patch_info (MonoCompile *cfg, int ip)
8376 {
8377         MonoJumpInfo **ji = &cfg->patch_info;
8378
8379         while (*ji) {
8380                 if ((*ji)->ip.i == ip)
8381                         *ji = (*ji)->next;
8382                 else
8383                         ji = &((*ji)->next);
8384         }
8385 }
8386
8387 /**
8388  * mono_patch_info_dup_mp:
8389  *
8390  * Make a copy of PATCH_INFO, allocating memory from the mempool MP.
8391  */
8392 MonoJumpInfo*
8393 mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info)
8394 {
8395         MonoJumpInfo *res = mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
8396         memcpy (res, patch_info, sizeof (MonoJumpInfo));
8397
8398         switch (patch_info->type) {
8399         case MONO_PATCH_INFO_LDSTR:
8400         case MONO_PATCH_INFO_TYPE_FROM_HANDLE:
8401         case MONO_PATCH_INFO_LDTOKEN:
8402         case MONO_PATCH_INFO_DECLSEC:
8403                 res->data.token = mono_mempool_alloc (mp, sizeof (MonoJumpInfoToken));
8404                 memcpy (res->data.token, patch_info->data.token, sizeof (MonoJumpInfoToken));
8405                 break;
8406         case MONO_PATCH_INFO_SWITCH:
8407                 res->data.table = mono_mempool_alloc (mp, sizeof (MonoJumpInfoBBTable));
8408                 memcpy (res->data.table, patch_info->data.table, sizeof (MonoJumpInfoBBTable));
8409                 break;
8410         default:
8411                 break;
8412         }
8413
8414         return res;
8415 }
8416
8417 gpointer
8418 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors)
8419 {
8420         unsigned char *ip = patch_info->ip.i + code;
8421         gconstpointer target = NULL;
8422
8423         switch (patch_info->type) {
8424         case MONO_PATCH_INFO_BB:
8425                 target = patch_info->data.bb->native_offset + code;
8426                 break;
8427         case MONO_PATCH_INFO_ABS:
8428                 target = patch_info->data.target;
8429                 break;
8430         case MONO_PATCH_INFO_LABEL:
8431                 target = patch_info->data.inst->inst_c0 + code;
8432                 break;
8433         case MONO_PATCH_INFO_IP:
8434                 target = ip;
8435                 break;
8436         case MONO_PATCH_INFO_METHOD_REL:
8437                 target = code + patch_info->data.offset;
8438                 break;
8439         case MONO_PATCH_INFO_INTERNAL_METHOD: {
8440                 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
8441                 if (!mi) {
8442                         g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
8443                         g_assert_not_reached ();
8444                 }
8445                 target = mono_icall_get_wrapper (mi);
8446                 break;
8447         }
8448         case MONO_PATCH_INFO_METHOD_JUMP: {
8449                 GSList *list;
8450
8451                 /* get the trampoline to the method from the domain */
8452                 target = mono_create_jump_trampoline (domain, patch_info->data.method, TRUE);
8453                 if (!domain->jump_target_hash)
8454                         domain->jump_target_hash = g_hash_table_new (NULL, NULL);
8455                 list = g_hash_table_lookup (domain->jump_target_hash, patch_info->data.method);
8456                 list = g_slist_prepend (list, ip);
8457                 g_hash_table_insert (domain->jump_target_hash, patch_info->data.method, list);
8458                 break;
8459         }
8460         case MONO_PATCH_INFO_METHOD:
8461                 if (patch_info->data.method == method) {
8462                         target = code;
8463                 } else
8464                         /* get the trampoline to the method from the domain */
8465                         target = mono_create_jit_trampoline (patch_info->data.method);
8466                 break;
8467         case MONO_PATCH_INFO_SWITCH: {
8468                 gpointer *jump_table;
8469                 int i;
8470
8471                 if (method && method->dynamic) {
8472                         jump_table = mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
8473                 } else {
8474                         mono_domain_lock (domain);
8475                         jump_table = mono_code_manager_reserve (domain->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
8476                         mono_domain_unlock (domain);
8477                 }
8478
8479                 for (i = 0; i < patch_info->data.table->table_size; i++) {
8480                         jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
8481                 }
8482                 target = jump_table;
8483                 break;
8484         }
8485         case MONO_PATCH_INFO_METHODCONST:
8486         case MONO_PATCH_INFO_CLASS:
8487         case MONO_PATCH_INFO_IMAGE:
8488         case MONO_PATCH_INFO_FIELD:
8489                 target = patch_info->data.target;
8490                 break;
8491         case MONO_PATCH_INFO_IID:
8492                 mono_class_init (patch_info->data.klass);
8493                 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
8494                 break;
8495         case MONO_PATCH_INFO_ADJUSTED_IID:
8496                 mono_class_init (patch_info->data.klass);
8497                 target = GINT_TO_POINTER ((int)(-((patch_info->data.klass->interface_id + 1) * SIZEOF_VOID_P)));
8498                 break;
8499         case MONO_PATCH_INFO_VTABLE:
8500                 target = mono_class_vtable (domain, patch_info->data.klass);
8501                 break;
8502         case MONO_PATCH_INFO_CLASS_INIT:
8503                 target = mono_create_class_init_trampoline (mono_class_vtable (domain, patch_info->data.klass));
8504                 break;
8505         case MONO_PATCH_INFO_SFLDA: {
8506                 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
8507                 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
8508                         /* Done by the generated code */
8509                         ;
8510                 else {
8511                         if (run_cctors)
8512                                 mono_runtime_class_init (vtable);
8513                 }
8514                 target = (char*)vtable->data + patch_info->data.field->offset;
8515                 break;
8516         }
8517         case MONO_PATCH_INFO_R4:
8518         case MONO_PATCH_INFO_R8:
8519                 target = patch_info->data.target;
8520                 break;
8521         case MONO_PATCH_INFO_EXC_NAME:
8522                 target = patch_info->data.name;
8523                 break;
8524         case MONO_PATCH_INFO_LDSTR:
8525                 target =
8526                         mono_ldstr (domain, patch_info->data.token->image,
8527                                                 mono_metadata_token_index (patch_info->data.token->token));
8528                 break;
8529         case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
8530                 gpointer handle;
8531                 MonoClass *handle_class;
8532
8533                 handle = mono_ldtoken (patch_info->data.token->image,
8534                                        patch_info->data.token->token, &handle_class, NULL);
8535                 mono_class_init (handle_class);
8536                 mono_class_init (mono_class_from_mono_type (handle));
8537
8538                 target =
8539                         mono_type_get_object (domain, handle);
8540                 break;
8541         }
8542         case MONO_PATCH_INFO_LDTOKEN: {
8543                 gpointer handle;
8544                 MonoClass *handle_class;
8545
8546                 handle = mono_ldtoken (patch_info->data.token->image,
8547                                        patch_info->data.token->token, &handle_class, NULL);
8548                 mono_class_init (handle_class);
8549
8550                 target = handle;
8551                 break;
8552         }
8553         case MONO_PATCH_INFO_DECLSEC:
8554                 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
8555                 break;
8556         case MONO_PATCH_INFO_BB_OVF:
8557         case MONO_PATCH_INFO_EXC_OVF:
8558         case MONO_PATCH_INFO_GOT_OFFSET:
8559         case MONO_PATCH_INFO_NONE:
8560                 break;
8561         default:
8562                 g_assert_not_reached ();
8563         }
8564
8565         return (gpointer)target;
8566 }
8567
8568 static void
8569 dec_foreach (MonoInst *tree, MonoCompile *cfg) {
8570         MonoJitICallInfo *info;
8571
8572         decompose_foreach (tree, cfg);
8573
8574         switch (mono_burg_arity [tree->opcode]) {
8575         case 0: break;
8576         case 1:
8577                 dec_foreach (tree->inst_left, cfg);
8578
8579                 if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
8580                         MonoInst *iargs [2];
8581
8582                         iargs [0] = tree->inst_left;
8583
8584                         mono_emulate_opcode (cfg, tree, iargs, info);
8585                         return;
8586                 }
8587
8588                 break;
8589         case 2:
8590 #ifdef MONO_ARCH_BIGMUL_INTRINS
8591                 if (tree->opcode == OP_LMUL
8592                                 && (cfg->opt & MONO_OPT_INTRINS)
8593                                 && (tree->inst_left->opcode == CEE_CONV_I8
8594                                         || tree->inst_left->opcode == CEE_CONV_U8)
8595                                 && tree->inst_left->inst_left->type == STACK_I4
8596                                 && (tree->inst_right->opcode == CEE_CONV_I8
8597                                         || tree->inst_right->opcode == CEE_CONV_U8)
8598                                 && tree->inst_right->inst_left->type == STACK_I4
8599                                 && tree->inst_left->opcode == tree->inst_right->opcode) {
8600                         tree->opcode = (tree->inst_left->opcode == CEE_CONV_I8 ? OP_BIGMUL: OP_BIGMUL_UN);
8601                         tree->inst_left = tree->inst_left->inst_left;
8602                         tree->inst_right = tree->inst_right->inst_left;
8603                         dec_foreach (tree, cfg);
8604                 } else
8605 #endif
8606                         if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
8607                         MonoInst *iargs [2];
8608
8609                         iargs [0] = tree->inst_i0;
8610                         iargs [1] = tree->inst_i1;
8611
8612                         mono_emulate_opcode (cfg, tree, iargs, info);
8613
8614                         dec_foreach (iargs [0], cfg);
8615                         dec_foreach (iargs [1], cfg);
8616                         return;
8617                 } else {
8618                         dec_foreach (tree->inst_left, cfg);
8619                         dec_foreach (tree->inst_right, cfg);
8620                 }
8621                 break;
8622         default:
8623                 g_assert_not_reached ();
8624         }
8625 }
8626
8627 static void
8628 decompose_pass (MonoCompile *cfg) {
8629         MonoBasicBlock *bb;
8630
8631         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8632                 MonoInst *tree;
8633                 cfg->cbb = bb;
8634                 cfg->prev_ins = NULL;
8635                 for (tree = cfg->cbb->code; tree; tree = tree->next) {
8636                         dec_foreach (tree, cfg);
8637                         cfg->prev_ins = tree;
8638                 }
8639         }
8640 }
8641
8642 static void
8643 nullify_basic_block (MonoBasicBlock *bb)
8644 {
8645         bb->in_count = 0;
8646         bb->out_count = 0;
8647         bb->in_bb = NULL;
8648         bb->out_bb = NULL;
8649         bb->next_bb = NULL;
8650         bb->code = bb->last_ins = NULL;
8651         bb->cil_code = NULL;
8652 }
8653
8654 static void
8655 replace_out_block (MonoBasicBlock *bb, MonoBasicBlock *orig,  MonoBasicBlock *repl)
8656 {
8657         int i;
8658
8659         for (i = 0; i < bb->out_count; i++) {
8660                 MonoBasicBlock *ob = bb->out_bb [i];
8661                 if (ob == orig) {
8662                         if (!repl) {
8663                                 if (bb->out_count > 1) {
8664                                         bb->out_bb [i] = bb->out_bb [bb->out_count - 1];
8665                                 }
8666                                 bb->out_count--;
8667                         } else {
8668                                 bb->out_bb [i] = repl;
8669                         }
8670                 }
8671         }
8672 }
8673
8674 static void
8675 replace_in_block (MonoBasicBlock *bb, MonoBasicBlock *orig, MonoBasicBlock *repl)
8676 {
8677         int i;
8678
8679         for (i = 0; i < bb->in_count; i++) {
8680                 MonoBasicBlock *ib = bb->in_bb [i];
8681                 if (ib == orig) {
8682                         if (!repl) {
8683                                 if (bb->in_count > 1) {
8684                                         bb->in_bb [i] = bb->in_bb [bb->in_count - 1];
8685                                 }
8686                                 bb->in_count--;
8687                         } else {
8688                                 bb->in_bb [i] = repl;
8689                         }
8690                 }
8691         }
8692 }
8693
8694 static void
8695 replace_out_block_in_code (MonoBasicBlock *bb, MonoBasicBlock *orig, MonoBasicBlock *repl) {
8696         MonoInst *inst;
8697
8698         for (inst = bb->code; inst != NULL; inst = inst->next) {
8699                 if (inst->opcode == OP_CALL_HANDLER) {
8700                         if (inst->inst_target_bb == orig) {
8701                                 inst->inst_target_bb = repl;
8702                         }
8703                 }
8704         }
8705         if (bb->last_ins != NULL) {
8706                 switch (bb->last_ins->opcode) {
8707                 case CEE_BR:
8708                         if (bb->last_ins->inst_target_bb == orig) {
8709                                 bb->last_ins->inst_target_bb = repl;
8710                         }
8711                         break;
8712                 case CEE_SWITCH: {
8713                         int i;
8714                         int n = GPOINTER_TO_INT (bb->last_ins->klass);
8715                         for (i = 0; i < n; i++ ) {
8716                                 if (bb->last_ins->inst_many_bb [i] == orig) {
8717                                         bb->last_ins->inst_many_bb [i] = repl;
8718                                 }
8719                         }
8720                         break;
8721                 }
8722                 case CEE_BNE_UN:
8723                 case CEE_BEQ:
8724                 case CEE_BLT:
8725                 case CEE_BLT_UN:
8726                 case CEE_BGT:
8727                 case CEE_BGT_UN:
8728                 case CEE_BGE:
8729                 case CEE_BGE_UN:
8730                 case CEE_BLE:
8731                 case CEE_BLE_UN:
8732                         if (bb->last_ins->inst_true_bb == orig) {
8733                                 bb->last_ins->inst_true_bb = repl;
8734                         }
8735                         if (bb->last_ins->inst_false_bb == orig) {
8736                                 bb->last_ins->inst_false_bb = repl;
8737                         }
8738                         break;
8739                 default:
8740                         break;
8741                 }
8742         }
8743 }
8744
8745 static void
8746 replace_basic_block (MonoBasicBlock *bb, MonoBasicBlock *orig,  MonoBasicBlock *repl)
8747 {
8748         int i, j;
8749
8750         for (i = 0; i < bb->out_count; i++) {
8751                 MonoBasicBlock *ob = bb->out_bb [i];
8752                 for (j = 0; j < ob->in_count; j++) {
8753                         if (ob->in_bb [j] == orig) {
8754                                 ob->in_bb [j] = repl;
8755                         }
8756                 }
8757         }
8758
8759 }
8760
8761 /**
8762   * Check if a bb is useless (is just made of NOPs and ends with an
8763   * unconditional branch, or nothing).
8764   * If it is so, unlink it from the CFG and nullify it, and return TRUE.
8765   * Otherwise, return FALSE;
8766   */
8767 static gboolean
8768 remove_block_if_useless (MonoCompile *cfg, MonoBasicBlock *bb, MonoBasicBlock *previous_bb) {
8769         MonoBasicBlock *target_bb = NULL;
8770         MonoInst *inst;
8771
8772         /* Do not touch handlers */
8773         if (bb->region != -1) {
8774                 bb->not_useless = TRUE;
8775                 return FALSE;
8776         }
8777
8778         for (inst = bb->code; inst != NULL; inst = inst->next) {
8779                 switch (inst->opcode) {
8780                 case CEE_NOP:
8781                         break;
8782                 case CEE_BR:
8783                         target_bb = inst->inst_target_bb;
8784                         break;
8785                 default:
8786                         bb->not_useless = TRUE;
8787                         return FALSE;
8788                 }
8789         }
8790
8791         if (target_bb == NULL) {
8792                 if ((bb->out_count == 1) && (bb->out_bb [0] == bb->next_bb)) {
8793                         target_bb = bb->next_bb;
8794                 } else {
8795                         /* Do not touch empty BBs that do not "fall through" to their next BB (like the exit BB) */
8796                         return FALSE;
8797                 }
8798         }
8799
8800         /* Do not touch BBs following a switch (they are the "default" branch) */
8801         if ((previous_bb->last_ins != NULL) && (previous_bb->last_ins->opcode == CEE_SWITCH)) {
8802                 return FALSE;
8803         }
8804
8805         /* Do not touch BBs following the entry BB and jumping to something that is not */
8806         /* thiry "next" bb (the entry BB cannot contain the branch) */
8807         if ((previous_bb == cfg->bb_entry) && (bb->next_bb != target_bb)) {
8808                 return FALSE;
8809         }
8810
8811         /*
8812          * Do not touch BBs following a try block as the code in
8813          * mini_method_compile needs them to compute the length of the try block.
8814          */
8815         if (MONO_BBLOCK_IS_IN_REGION (previous_bb, MONO_REGION_TRY))
8816                 return FALSE;
8817
8818         /* Check that there is a target BB, and that bb is not an empty loop (Bug 75061) */
8819         if ((target_bb != NULL) && (target_bb != bb)) {
8820                 int i;
8821
8822                 if (cfg->verbose_level > 1) {
8823                         printf ("remove_block_if_useless %s, removed BB%d\n", mono_method_full_name (cfg->method, TRUE), bb->block_num);
8824                 }
8825
8826                 /* unlink_bblock () modifies the bb->in_bb array so can't use a for loop here */
8827                 while (bb->in_count) {
8828                         MonoBasicBlock *in_bb = bb->in_bb [0];
8829                         mono_unlink_bblock (cfg, in_bb, bb);
8830                         link_bblock (cfg, in_bb, target_bb);
8831                         replace_out_block_in_code (in_bb, bb, target_bb);
8832                 }
8833
8834                 mono_unlink_bblock (cfg, bb, target_bb);
8835
8836                 if ((previous_bb != cfg->bb_entry) &&
8837                                 (previous_bb->region == bb->region) &&
8838                                 ((previous_bb->last_ins == NULL) ||
8839                                 ((previous_bb->last_ins->opcode != CEE_BR) &&
8840                                 (! (MONO_IS_COND_BRANCH_OP (previous_bb->last_ins))) &&
8841                                 (previous_bb->last_ins->opcode != CEE_SWITCH)))) {
8842                         for (i = 0; i < previous_bb->out_count; i++) {
8843                                 if (previous_bb->out_bb [i] == target_bb) {
8844                                         MonoInst *jump;
8845                                         MONO_INST_NEW (cfg, jump, CEE_BR);
8846                                         MONO_ADD_INS (previous_bb, jump);
8847                                         jump->cil_code = previous_bb->cil_code;
8848                                         jump->inst_target_bb = target_bb;
8849                                         break;
8850                                 }
8851                         }
8852                 }
8853
8854                 previous_bb->next_bb = bb->next_bb;
8855                 nullify_basic_block (bb);
8856
8857                 return TRUE;
8858         } else {
8859                 return FALSE;
8860         }
8861 }
8862
8863 static void
8864 merge_basic_blocks (MonoBasicBlock *bb, MonoBasicBlock *bbn)
8865 {
8866         bb->out_count = bbn->out_count;
8867         bb->out_bb = bbn->out_bb;
8868
8869         replace_basic_block (bb, bbn, bb);
8870
8871         /* Nullify branch at the end of bb */
8872         if (bb->last_ins && MONO_IS_BRANCH_OP (bb->last_ins)) {
8873                 bb->last_ins->opcode = CEE_NOP;
8874         }
8875
8876         if (bb->last_ins) {
8877                 if (bbn->code) {
8878                         bb->last_ins->next = bbn->code;
8879                         bb->last_ins = bbn->last_ins;
8880                 }
8881         } else {
8882                 bb->code = bbn->code;
8883                 bb->last_ins = bbn->last_ins;
8884         }
8885         bb->next_bb = bbn->next_bb;
8886         nullify_basic_block (bbn);
8887 }
8888
8889 static void
8890 move_basic_block_to_end (MonoCompile *cfg, MonoBasicBlock *bb)
8891 {
8892         MonoBasicBlock *bbn, *next;
8893
8894         next = bb->next_bb;
8895
8896         /* Find the previous */
8897         for (bbn = cfg->bb_entry; bbn->next_bb && bbn->next_bb != bb; bbn = bbn->next_bb)
8898                 ;
8899         if (bbn->next_bb) {
8900                 bbn->next_bb = bb->next_bb;
8901         }
8902
8903         /* Find the last */
8904         for (bbn = cfg->bb_entry; bbn->next_bb; bbn = bbn->next_bb)
8905                 ;
8906         bbn->next_bb = bb;
8907         bb->next_bb = NULL;
8908
8909         /* Add a branch */
8910         if (next && (!bb->last_ins || (bb->last_ins->opcode != OP_NOT_REACHED))) {
8911                 MonoInst *ins;
8912
8913                 MONO_INST_NEW (cfg, ins, CEE_BR);
8914                 MONO_ADD_INS (bb, ins);
8915                 link_bblock (cfg, bb, next);
8916                 ins->inst_target_bb = next;
8917         }
8918 }
8919
8920 /* checks that a and b represent the same instructions, conservatively,
8921  * it can return FALSE also for two trees that are equal.
8922  * FIXME: also make sure there are no side effects.
8923  */
8924 static int
8925 same_trees (MonoInst *a, MonoInst *b)
8926 {
8927         int arity;
8928         if (a->opcode != b->opcode)
8929                 return FALSE;
8930         arity = mono_burg_arity [a->opcode];
8931         if (arity == 1) {
8932                 if (a->ssa_op == b->ssa_op && a->ssa_op == MONO_SSA_LOAD && a->inst_i0 == b->inst_i0)
8933                         return TRUE;
8934                 return same_trees (a->inst_left, b->inst_left);
8935         } else if (arity == 2) {
8936                 return same_trees (a->inst_left, b->inst_left) && same_trees (a->inst_right, b->inst_right);
8937         } else if (arity == 0) {
8938                 switch (a->opcode) {
8939                 case OP_ICONST:
8940                         return a->inst_c0 == b->inst_c0;
8941                 default:
8942                         return FALSE;
8943                 }
8944         }
8945         return FALSE;
8946 }
8947
8948 static int
8949 get_unsigned_condbranch (int opcode)
8950 {
8951         switch (opcode) {
8952         case CEE_BLE: return CEE_BLE_UN;
8953         case CEE_BLT: return CEE_BLT_UN;
8954         case CEE_BGE: return CEE_BGE_UN;
8955         case CEE_BGT: return CEE_BGT_UN;
8956         }
8957         g_assert_not_reached ();
8958         return 0;
8959 }
8960
8961 static int
8962 tree_is_unsigned (MonoInst* ins) {
8963         switch (ins->opcode) {
8964         case OP_ICONST:
8965                 return (int)ins->inst_c0 >= 0;
8966         /* array lengths are positive as are string sizes */
8967         case CEE_LDLEN:
8968         case OP_STRLEN:
8969                 return TRUE;
8970         case CEE_CONV_U1:
8971         case CEE_CONV_U2:
8972         case CEE_CONV_U4:
8973         case CEE_CONV_OVF_U1:
8974         case CEE_CONV_OVF_U2:
8975         case CEE_CONV_OVF_U4:
8976                 return TRUE;
8977         case CEE_LDIND_U1:
8978         case CEE_LDIND_U2:
8979         case CEE_LDIND_U4:
8980                 return TRUE;
8981         default:
8982                 return FALSE;
8983         }
8984 }
8985
8986 /* check if an unsigned compare can be used instead of two signed compares
8987  * for (val < 0 || val > limit) conditionals.
8988  * Returns TRUE if the optimization has been applied.
8989  * Note that this can't be applied if the second arg is not positive...
8990  */
8991 static int
8992 try_unsigned_compare (MonoCompile *cfg, MonoBasicBlock *bb)
8993 {
8994         MonoBasicBlock *truet, *falset;
8995         MonoInst *cmp_inst = bb->last_ins->inst_left;
8996         MonoInst *condb;
8997         if (!cmp_inst->inst_right->inst_c0 == 0)
8998                 return FALSE;
8999         truet = bb->last_ins->inst_true_bb;
9000         falset = bb->last_ins->inst_false_bb;
9001         if (falset->in_count != 1)
9002                 return FALSE;
9003         condb = falset->last_ins;
9004         /* target bb must have one instruction */
9005         if (!condb || (condb != falset->code))
9006                 return FALSE;
9007         if ((((condb->opcode == CEE_BLE || condb->opcode == CEE_BLT) && (condb->inst_false_bb == truet))
9008                         || ((condb->opcode == CEE_BGE || condb->opcode == CEE_BGT) && (condb->inst_true_bb == truet)))
9009                         && same_trees (cmp_inst->inst_left, condb->inst_left->inst_left)) {
9010                 if (!tree_is_unsigned (condb->inst_left->inst_right))
9011                         return FALSE;
9012                 condb->opcode = get_unsigned_condbranch (condb->opcode);
9013                 /* change the original condbranch to just point to the new unsigned check */
9014                 bb->last_ins->opcode = CEE_BR;
9015                 bb->last_ins->inst_target_bb = falset;
9016                 replace_out_block (bb, truet, NULL);
9017                 replace_in_block (truet, bb, NULL);
9018                 return TRUE;
9019         }
9020         return FALSE;
9021 }
9022
9023 /*
9024  * Optimizes the branches on the Control Flow Graph
9025  *
9026  */
9027 static void
9028 optimize_branches (MonoCompile *cfg)
9029 {
9030         int i, changed = FALSE;
9031         MonoBasicBlock *bb, *bbn;
9032         guint32 niterations;
9033
9034         /*
9035          * Some crazy loops could cause the code below to go into an infinite
9036          * loop, see bug #53003 for an example. To prevent this, we put an upper
9037          * bound on the number of iterations.
9038          */
9039         if (cfg->num_bblocks > 1000)
9040                 niterations = cfg->num_bblocks * 2;
9041         else
9042                 niterations = 1000;
9043
9044         do {
9045                 MonoBasicBlock *previous_bb;
9046                 changed = FALSE;
9047                 niterations --;
9048
9049                 /* we skip the entry block (exit is handled specially instead ) */
9050                 for (previous_bb = cfg->bb_entry, bb = cfg->bb_entry->next_bb; bb; previous_bb = bb, bb = bb->next_bb) {
9051
9052                         /* dont touch code inside exception clauses */
9053                         if (bb->region != -1)
9054                                 continue;
9055
9056                         if (!bb->not_useless && remove_block_if_useless (cfg, bb, previous_bb)) {
9057                                 changed = TRUE;
9058                                 continue;
9059                         }
9060
9061                         if ((bbn = bb->next_bb) && bbn->in_count == 0 && bb->region == bbn->region) {
9062                                 if (cfg->verbose_level > 2)
9063                                         g_print ("nullify block triggered %d\n", bbn->block_num);
9064
9065                                 bb->next_bb = bbn->next_bb;
9066
9067                                 for (i = 0; i < bbn->out_count; i++)
9068                                         replace_in_block (bbn->out_bb [i], bbn, NULL);
9069
9070                                 nullify_basic_block (bbn);
9071                                 changed = TRUE;
9072                         }
9073
9074                         if (bb->out_count == 1) {
9075                                 bbn = bb->out_bb [0];
9076
9077                                 /* conditional branches where true and false targets are the same can be also replaced with CEE_BR */
9078                                 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
9079                                         MonoInst *pop;
9080                                         MONO_INST_NEW (cfg, pop, CEE_POP);
9081                                         pop->inst_left = bb->last_ins->inst_left->inst_left;
9082                                         mono_add_ins_to_end (bb, pop);
9083                                         MONO_INST_NEW (cfg, pop, CEE_POP);
9084                                         pop->inst_left = bb->last_ins->inst_left->inst_right;
9085                                         mono_add_ins_to_end (bb, pop);
9086                                         bb->last_ins->opcode = CEE_BR;
9087                                         bb->last_ins->inst_target_bb = bb->last_ins->inst_true_bb;
9088                                         changed = TRUE;
9089                                         if (cfg->verbose_level > 2)
9090                                                 g_print ("cond branch removal triggered in %d %d\n", bb->block_num, bb->out_count);
9091                                 }
9092
9093                                 if (bb->region == bbn->region && bb->next_bb == bbn) {
9094                                         /* the block are in sequence anyway ... */
9095
9096                                         /* branches to the following block can be removed */
9097                                         if (bb->last_ins && bb->last_ins->opcode == CEE_BR) {
9098                                                 bb->last_ins->opcode = CEE_NOP;
9099                                                 changed = TRUE;
9100                                                 if (cfg->verbose_level > 2)
9101                                                         g_print ("br removal triggered %d -> %d\n", bb->block_num, bbn->block_num);
9102                                         }
9103
9104                                         if (bbn->in_count == 1) {
9105
9106                                                 if (bbn != cfg->bb_exit) {
9107                                                         if (cfg->verbose_level > 2)
9108                                                                 g_print ("block merge triggered %d -> %d\n", bb->block_num, bbn->block_num);
9109                                                         merge_basic_blocks (bb, bbn);
9110                                                         changed = TRUE;
9111                                                         continue;
9112                                                 }
9113
9114                                                 //mono_print_bb_code (bb);
9115                                         }
9116                                 }
9117                         }
9118                         if ((bbn = bb->next_bb) && bbn->in_count == 0 && bb->region == bbn->region) {
9119                                 if (cfg->verbose_level > 2) {
9120                                         g_print ("nullify block triggered %d\n", bbn->block_num);
9121                                 }
9122                                 bb->next_bb = bbn->next_bb;
9123
9124                                 for (i = 0; i < bbn->out_count; i++)
9125                                         replace_in_block (bbn->out_bb [i], bbn, NULL);
9126
9127                                 nullify_basic_block (bbn);
9128                                 changed = TRUE;
9129                                 continue;
9130                         }
9131
9132                         if (bb->out_count == 1) {
9133                                 bbn = bb->out_bb [0];
9134
9135                                 if (bb->last_ins && bb->last_ins->opcode == CEE_BR) {
9136                                         bbn = bb->last_ins->inst_target_bb;
9137                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR &&
9138                                             bbn->code->inst_target_bb->region == bb->region) {
9139
9140                                                 if (cfg->verbose_level > 2)
9141                                                         g_print ("in %s branch to branch triggered %d -> %d -> %d\n", cfg->method->name,
9142                                                                  bb->block_num, bbn->block_num, bbn->code->inst_target_bb->block_num);
9143
9144                                                 replace_in_block (bbn, bb, NULL);
9145                                                 replace_out_block (bb, bbn, bbn->code->inst_target_bb);
9146                                                 link_bblock (cfg, bb, bbn->code->inst_target_bb);
9147                                                 bb->last_ins->inst_target_bb = bbn->code->inst_target_bb;
9148                                                 changed = TRUE;
9149                                                 continue;
9150                                         }
9151                                 }
9152                         } else if (bb->out_count == 2) {
9153                                 if (bb->last_ins && MONO_IS_COND_BRANCH_NOFP (bb->last_ins)) {
9154                                         int branch_result = mono_eval_cond_branch (bb->last_ins);
9155                                         MonoBasicBlock *taken_branch_target = NULL, *untaken_branch_target = NULL;
9156                                         if (branch_result == BRANCH_TAKEN) {
9157                                                 taken_branch_target = bb->last_ins->inst_true_bb;
9158                                                 untaken_branch_target = bb->last_ins->inst_false_bb;
9159                                         } else if (branch_result == BRANCH_NOT_TAKEN) {
9160                                                 taken_branch_target = bb->last_ins->inst_false_bb;
9161                                                 untaken_branch_target = bb->last_ins->inst_true_bb;
9162                                         }
9163                                         if (taken_branch_target) {
9164                                                 /* if mono_eval_cond_branch () is ever taken to handle
9165                                                  * non-constant values to compare, issue a pop here.
9166                                                  */
9167                                                 bb->last_ins->opcode = CEE_BR;
9168                                                 bb->last_ins->inst_target_bb = taken_branch_target;
9169                                                 mono_unlink_bblock (cfg, bb, untaken_branch_target);
9170                                                 changed = TRUE;
9171                                                 continue;
9172                                         }
9173                                         bbn = bb->last_ins->inst_true_bb;
9174                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR &&
9175                                             bbn->code->inst_target_bb->region == bb->region) {
9176                                                 if (cfg->verbose_level > 2)
9177                                                         g_print ("cbranch1 to branch triggered %d -> (%d) %d (0x%02x)\n",
9178                                                                  bb->block_num, bbn->block_num, bbn->code->inst_target_bb->block_num,
9179                                                                  bbn->code->opcode);
9180
9181                                                 /*
9182                                                  * Unlink, then relink bblocks to avoid various
9183                                                  * tricky situations when the two targets of the branch
9184                                                  * are equal, or will become equal after the change.
9185                                                  */
9186                                                 mono_unlink_bblock (cfg, bb, bb->last_ins->inst_true_bb);
9187                                                 mono_unlink_bblock (cfg, bb, bb->last_ins->inst_false_bb);
9188
9189                                                 bb->last_ins->inst_true_bb = bbn->code->inst_target_bb;
9190
9191                                                 link_bblock (cfg, bb, bb->last_ins->inst_true_bb);
9192                                                 link_bblock (cfg, bb, bb->last_ins->inst_false_bb);
9193
9194                                                 changed = TRUE;
9195                                                 continue;
9196                                         }
9197
9198                                         bbn = bb->last_ins->inst_false_bb;
9199                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR &&
9200                                             bbn->code->inst_target_bb->region == bb->region) {
9201                                                 if (cfg->verbose_level > 2)
9202                                                         g_print ("cbranch2 to branch triggered %d -> (%d) %d (0x%02x)\n",
9203                                                                  bb->block_num, bbn->block_num, bbn->code->inst_target_bb->block_num,
9204                                                                  bbn->code->opcode);
9205
9206                                                 mono_unlink_bblock (cfg, bb, bb->last_ins->inst_true_bb);
9207                                                 mono_unlink_bblock (cfg, bb, bb->last_ins->inst_false_bb);
9208
9209                                                 bb->last_ins->inst_false_bb = bbn->code->inst_target_bb;
9210
9211                                                 link_bblock (cfg, bb, bb->last_ins->inst_true_bb);
9212                                                 link_bblock (cfg, bb, bb->last_ins->inst_false_bb);
9213
9214                                                 changed = TRUE;
9215                                                 continue;
9216                                         }
9217                                 }
9218
9219                                 /* detect and optimize to unsigned compares checks like: if (v < 0 || v > limit */
9220                                 if (bb->last_ins && bb->last_ins->opcode == CEE_BLT && bb->last_ins->inst_left->inst_right->opcode == OP_ICONST) {
9221                                         if (try_unsigned_compare (cfg, bb)) {
9222                                                 /*g_print ("applied in bb %d (->%d) %s\n", bb->block_num, bb->last_ins->inst_target_bb->block_num, mono_method_full_name (cfg->method, TRUE));*/
9223                                                 changed = TRUE;
9224                                                 continue;
9225                                         }
9226                                 }
9227
9228                                 if (bb->last_ins && MONO_IS_COND_BRANCH_NOFP (bb->last_ins)) {
9229                                         if (bb->last_ins->inst_false_bb->out_of_line && (bb->region == bb->last_ins->inst_false_bb->region)) {
9230                                                 /* Reverse the branch */
9231                                                 bb->last_ins->opcode = reverse_branch_op (bb->last_ins->opcode);
9232                                                 bbn = bb->last_ins->inst_false_bb;
9233                                                 bb->last_ins->inst_false_bb = bb->last_ins->inst_true_bb;
9234                                                 bb->last_ins->inst_true_bb = bbn;
9235
9236                                                 move_basic_block_to_end (cfg, bb->last_ins->inst_true_bb);
9237                                                 if (cfg->verbose_level > 2)
9238                                                         g_print ("cbranch to throw block triggered %d.\n",
9239                                                                          bb->block_num);
9240                                         }
9241                                 }
9242                         }
9243                 }
9244         } while (changed && (niterations > 0));
9245
9246 }
9247
9248 static void
9249 mono_compile_create_vars (MonoCompile *cfg)
9250 {
9251         MonoMethodSignature *sig;
9252         MonoMethodHeader *header;
9253         int i;
9254
9255         header = mono_method_get_header (cfg->method);
9256
9257         sig = mono_method_signature (cfg->method);
9258
9259         if (!MONO_TYPE_IS_VOID (sig->ret)) {
9260                 cfg->ret = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
9261                 cfg->ret->opcode = OP_RETARG;
9262                 cfg->ret->inst_vtype = sig->ret;
9263                 cfg->ret->klass = mono_class_from_mono_type (sig->ret);
9264         }
9265         if (cfg->verbose_level > 2)
9266                 g_print ("creating vars\n");
9267
9268         if (sig->hasthis)
9269                 mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
9270
9271         for (i = 0; i < sig->param_count; ++i) {
9272                 mono_compile_create_var (cfg, sig->params [i], OP_ARG);
9273                 if (sig->params [i]->byref) {
9274                         cfg->disable_ssa = TRUE;
9275                 }
9276         }
9277
9278         cfg->locals_start = cfg->num_varinfo;
9279
9280         if (cfg->verbose_level > 2)
9281                 g_print ("creating locals\n");
9282         for (i = 0; i < header->num_locals; ++i)
9283                 mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
9284         if (cfg->verbose_level > 2)
9285                 g_print ("locals done\n");
9286
9287 #ifdef MONO_ARCH_HAVE_CREATE_VARS
9288         mono_arch_create_vars (cfg);
9289 #endif
9290 }
9291
9292 void
9293 mono_print_code (MonoCompile *cfg)
9294 {
9295         MonoBasicBlock *bb;
9296
9297         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9298                 MonoInst *tree = bb->code;
9299
9300                 if (!tree)
9301                         continue;
9302
9303                 g_print ("CODE BLOCK %d (nesting %d):\n", bb->block_num, bb->nesting);
9304
9305                 for (; tree; tree = tree->next) {
9306                         mono_print_tree (tree);
9307                         g_print ("\n");
9308                 }
9309
9310                 if (bb->last_ins)
9311                         bb->last_ins->next = NULL;
9312         }
9313 }
9314
9315 extern const char * const mono_burg_rule_string [];
9316
9317 static void
9318 emit_state (MonoCompile *cfg, MBState *state, int goal)
9319 {
9320         MBState *kids [10];
9321         int ern = mono_burg_rule (state, goal);
9322         const guint16 *nts = mono_burg_nts_data + mono_burg_nts [ern];
9323         MBEmitFunc emit;
9324
9325         //g_print ("rule: %s\n", mono_burg_rule_string [ern]);
9326         switch (goal) {
9327         case MB_NTERM_reg:
9328                 //if (state->reg2)
9329                 //      state->reg1 = state->reg2; /* chain rule */
9330                 //else
9331 #ifdef MONO_ARCH_ENABLE_EMIT_STATE_OPT
9332                 if (!state->reg1)
9333 #endif
9334                         state->reg1 = mono_regstate_next_int (cfg->rs);
9335                 //g_print ("alloc symbolic R%d (reg2: R%d) in block %d\n", state->reg1, state->reg2, cfg->cbb->block_num);
9336                 break;
9337         case MB_NTERM_lreg:
9338                 state->reg1 = mono_regstate_next_int (cfg->rs);
9339                 state->reg2 = mono_regstate_next_int (cfg->rs);
9340                 break;
9341         case MB_NTERM_freg:
9342                 state->reg1 = mono_regstate_next_float (cfg->rs);
9343                 break;
9344         default:
9345 #ifdef MONO_ARCH_ENABLE_EMIT_STATE_OPT
9346                 /*
9347                  * Enabling this might cause bugs to surface in the local register
9348                  * allocators on some architectures like x86.
9349                  */
9350                 if ((state->tree->ssa_op == MONO_SSA_STORE) && (state->left->tree->opcode == OP_REGVAR)) {
9351                         /* Do not optimize away reg-reg moves */
9352                         if (! ((state->right->tree->ssa_op == MONO_SSA_LOAD) && (state->right->left->tree->opcode == OP_REGVAR))) {
9353                                 state->right->reg1 = state->left->tree->dreg;
9354                         }
9355                 }
9356 #endif
9357
9358                 /* do nothing */
9359                 break;
9360         }
9361         if (nts [0]) {
9362                 mono_burg_kids (state, ern, kids);
9363
9364                 emit_state (cfg, kids [0], nts [0]);
9365                 if (nts [1]) {
9366                         emit_state (cfg, kids [1], nts [1]);
9367                         if (nts [2]) {
9368                                 g_assert (!nts [3]);
9369                                 emit_state (cfg, kids [2], nts [2]);
9370                         }
9371                 }
9372         }
9373
9374 //      g_print ("emit: %s (%p)\n", mono_burg_rule_string [ern], state);
9375         if ((emit = mono_burg_func [ern]))
9376                 emit (state, state->tree, cfg);
9377 }
9378
9379 #define DEBUG_SELECTION
9380
9381 static void
9382 mini_select_instructions (MonoCompile *cfg)
9383 {
9384         MonoBasicBlock *bb;
9385
9386         cfg->state_pool = mono_mempool_new ();
9387         cfg->rs = mono_regstate_new ();
9388
9389         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9390                 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
9391                     bb->next_bb != bb->last_ins->inst_false_bb) {
9392
9393                         /* we are careful when inverting, since bugs like #59580
9394                          * could show up when dealing with NaNs.
9395                          */
9396                         if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
9397                                 MonoBasicBlock *tmp =  bb->last_ins->inst_true_bb;
9398                                 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
9399                                 bb->last_ins->inst_false_bb = tmp;
9400
9401                                 bb->last_ins->opcode = reverse_branch_op (bb->last_ins->opcode);
9402                         } else {
9403                                 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
9404                                 inst->opcode = CEE_BR;
9405                                 inst->inst_target_bb = bb->last_ins->inst_false_bb;
9406                                 mono_bblock_add_inst (bb, inst);
9407                         }
9408                 }
9409         }
9410
9411 #ifdef DEBUG_SELECTION
9412         if (cfg->verbose_level >= 4) {
9413         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9414                 MonoInst *tree = bb->code;
9415                 g_print ("DUMP BLOCK %d:\n", bb->block_num);
9416                 if (!tree)
9417                         continue;
9418                 for (; tree; tree = tree->next) {
9419                         mono_print_tree (tree);
9420                         g_print ("\n");
9421                 }
9422         }
9423         }
9424 #endif
9425
9426         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9427                 MonoInst *tree = bb->code, *next;
9428                 MBState *mbstate;
9429
9430                 if (!tree)
9431                         continue;
9432                 bb->code = NULL;
9433                 bb->last_ins = NULL;
9434
9435                 cfg->cbb = bb;
9436                 mono_regstate_reset (cfg->rs);
9437
9438 #ifdef DEBUG_SELECTION
9439                 if (cfg->verbose_level >= 3)
9440                         g_print ("LABEL BLOCK %d:\n", bb->block_num);
9441 #endif
9442                 for (; tree; tree = next) {
9443                         next = tree->next;
9444 #ifdef DEBUG_SELECTION
9445                         if (cfg->verbose_level >= 3) {
9446                                 mono_print_tree (tree);
9447                                 g_print ("\n");
9448                         }
9449 #endif
9450
9451                         if (!(mbstate = mono_burg_label (tree, cfg))) {
9452                                 g_warning ("unable to label tree %p", tree);
9453                                 mono_print_tree (tree);
9454                                 g_print ("\n");
9455                                 g_assert_not_reached ();
9456                         }
9457                         emit_state (cfg, mbstate, MB_NTERM_stmt);
9458                 }
9459                 bb->max_ireg = cfg->rs->next_vireg;
9460                 bb->max_freg = cfg->rs->next_vfreg;
9461
9462                 if (bb->last_ins)
9463                         bb->last_ins->next = NULL;
9464
9465                 mono_mempool_empty (cfg->state_pool);
9466         }
9467         mono_mempool_destroy (cfg->state_pool);
9468 }
9469
9470 void
9471 mono_codegen (MonoCompile *cfg)
9472 {
9473         MonoJumpInfo *patch_info;
9474         MonoBasicBlock *bb;
9475         int i, max_epilog_size;
9476         guint8 *code;
9477
9478         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9479                 cfg->spill_count = 0;
9480                 /* we reuse dfn here */
9481                 /* bb->dfn = bb_count++; */
9482                 mono_arch_local_regalloc (cfg, bb);
9483         }
9484
9485         if (cfg->prof_options & MONO_PROFILE_COVERAGE)
9486                 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
9487
9488         code = mono_arch_emit_prolog (cfg);
9489
9490         if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
9491                 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
9492
9493         cfg->code_len = code - cfg->native_code;
9494         cfg->prolog_end = cfg->code_len;
9495
9496         mono_debug_open_method (cfg);
9497
9498         /* emit code all basic blocks */
9499         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9500                 bb->native_offset = cfg->code_len;
9501                 mono_arch_output_basic_block (cfg, bb);
9502
9503                 if (bb == cfg->bb_exit) {
9504                         cfg->epilog_begin = cfg->code_len;
9505
9506                         if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
9507                                 code = cfg->native_code + cfg->code_len;
9508                                 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
9509                                 cfg->code_len = code - cfg->native_code;
9510                         }
9511
9512                         mono_arch_emit_epilog (cfg);
9513                 }
9514         }
9515
9516         mono_arch_emit_exceptions (cfg);
9517
9518         max_epilog_size = 0;
9519
9520         code = cfg->native_code + cfg->code_len;
9521
9522         /* we always allocate code in cfg->domain->code_mp to increase locality */
9523         cfg->code_size = cfg->code_len + max_epilog_size;
9524         /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
9525
9526         if (cfg->method->dynamic) {
9527                 /* Allocate the code into a separate memory pool so it can be freed */
9528                 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
9529                 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
9530                 mono_domain_lock (cfg->domain);
9531                 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
9532                 mono_domain_unlock (cfg->domain);
9533
9534                 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size);
9535         } else {
9536                 mono_domain_lock (cfg->domain);
9537                 code = mono_code_manager_reserve (cfg->domain->code_mp, cfg->code_size);
9538                 mono_domain_unlock (cfg->domain);
9539         }
9540
9541         memcpy (code, cfg->native_code, cfg->code_len);
9542         g_free (cfg->native_code);
9543         cfg->native_code = code;
9544         code = cfg->native_code + cfg->code_len;
9545
9546         /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
9547         for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
9548                 switch (patch_info->type) {
9549                 case MONO_PATCH_INFO_ABS: {
9550                         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
9551                         if (info) {
9552                                 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
9553                                 if ((cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) &&
9554                                         strstr (cfg->method->name, info->name))
9555                                         /*
9556                                          * This is an icall wrapper, and this is a call to the
9557                                          * wrapped function.
9558                                          */
9559                                         ;
9560                                 else {
9561                                         /* for these array methods we currently register the same function pointer
9562                                          * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
9563                                          * will return the incorrect one depending on the order they are registered.
9564                                          * See tests/test-arr.cs
9565                                          */
9566                                         if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
9567                                                 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
9568                                                 patch_info->data.name = info->name;
9569                                         }
9570                                 }
9571                         }
9572                         else {
9573                                 MonoVTable *vtable = mono_find_class_init_trampoline_by_addr (patch_info->data.target);
9574                                 if (vtable) {
9575                                         patch_info->type = MONO_PATCH_INFO_CLASS_INIT;
9576                                         patch_info->data.klass = vtable->klass;
9577                                 }
9578                         }
9579                         break;
9580                 }
9581                 case MONO_PATCH_INFO_SWITCH: {
9582                         gpointer *table;
9583                         if (cfg->method->dynamic) {
9584                                 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
9585                         } else {
9586                                 mono_domain_lock (cfg->domain);
9587                                 table = mono_code_manager_reserve (cfg->domain->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
9588                                 mono_domain_unlock (cfg->domain);
9589                         }
9590
9591                         if (!cfg->compile_aot)
9592                                 /* In the aot case, the patch already points to the correct location */
9593                                 patch_info->ip.i = patch_info->ip.label->inst_c0;
9594                         for (i = 0; i < patch_info->data.table->table_size; i++) {
9595                                 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
9596                         }
9597                         patch_info->data.table->table = (MonoBasicBlock**)table;
9598                         break;
9599                 }
9600                 default:
9601                         /* do nothing */
9602                         break;
9603                 }
9604         }
9605
9606         if (cfg->verbose_level > 0) {
9607                 char* nm = mono_method_full_name (cfg->method, TRUE);
9608                 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
9609                                  nm,
9610                                  cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
9611                 g_free (nm);
9612         }
9613
9614 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
9615         mono_arch_save_unwind_info (cfg);
9616 #endif
9617
9618         mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
9619
9620         if (cfg->method->dynamic) {
9621                 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
9622         } else {
9623                 mono_domain_lock (cfg->domain);
9624                 mono_code_manager_commit (cfg->domain->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
9625                 mono_domain_unlock (cfg->domain);
9626         }
9627
9628         mono_arch_flush_icache (cfg->native_code, cfg->code_len);
9629
9630         mono_debug_close_method (cfg);
9631 }
9632
9633
9634
9635 static void
9636 remove_critical_edges (MonoCompile *cfg) {
9637         MonoBasicBlock *bb;
9638         MonoBasicBlock *previous_bb;
9639
9640         if (cfg->verbose_level > 3) {
9641                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9642                         int i;
9643                         printf ("remove_critical_edges %s, BEFORE BB%d (in:", mono_method_full_name (cfg->method, TRUE), bb->block_num);
9644                         for (i = 0; i < bb->in_count; i++) {
9645                                 printf (" %d", bb->in_bb [i]->block_num);
9646                         }
9647                         printf (") (out:");
9648                         for (i = 0; i < bb->out_count; i++) {
9649                                 printf (" %d", bb->out_bb [i]->block_num);
9650                         }
9651                         printf (")");
9652                         if (bb->last_ins != NULL) {
9653                                 printf (" ");
9654                                 mono_print_tree (bb->last_ins);
9655                         }
9656                         printf ("\n");
9657                 }
9658         }
9659
9660         for (previous_bb = cfg->bb_entry, bb = previous_bb->next_bb; bb != NULL; previous_bb = previous_bb->next_bb, bb = bb->next_bb) {
9661                 if (bb->in_count > 1) {
9662                         int in_bb_index;
9663                         for (in_bb_index = 0; in_bb_index < bb->in_count; in_bb_index++) {
9664                                 MonoBasicBlock *in_bb = bb->in_bb [in_bb_index];
9665                                 if (in_bb->out_count > 1) {
9666                                         MonoBasicBlock *new_bb = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoBasicBlock));
9667                                         new_bb->block_num = cfg->num_bblocks++;
9668 //                                      new_bb->real_offset = bb->real_offset;
9669                                         new_bb->region = bb->region;
9670
9671                                         /* Do not alter the CFG while altering the BB list */
9672                                         if (previous_bb->region == bb->region) {
9673                                                 if (previous_bb != cfg->bb_entry) {
9674                                                         /* If previous_bb "followed through" to bb, */
9675                                                         /* keep it linked with a CEE_BR */
9676                                                         if ((previous_bb->last_ins == NULL) ||
9677                                                                         ((previous_bb->last_ins->opcode != CEE_BR) &&
9678                                                                         (! (MONO_IS_COND_BRANCH_OP (previous_bb->last_ins))) &&
9679                                                                         (previous_bb->last_ins->opcode != CEE_SWITCH))) {
9680                                                                 int i;
9681                                                                 /* Make sure previous_bb really falls through bb */
9682                                                                 for (i = 0; i < previous_bb->out_count; i++) {
9683                                                                         if (previous_bb->out_bb [i] == bb) {
9684                                                                                 MonoInst *jump;
9685                                                                                 MONO_INST_NEW (cfg, jump, CEE_BR);
9686                                                                                 MONO_ADD_INS (previous_bb, jump);
9687                                                                                 jump->cil_code = previous_bb->cil_code;
9688                                                                                 jump->inst_target_bb = bb;
9689                                                                                 break;
9690                                                                         }
9691                                                                 }
9692                                                         }
9693                                                 } else {
9694                                                         /* We cannot add any inst to the entry BB, so we must */
9695                                                         /* put a new BB in the middle to hold the CEE_BR */
9696                                                         MonoInst *jump;
9697                                                         MonoBasicBlock *new_bb_after_entry = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoBasicBlock));
9698                                                         new_bb_after_entry->block_num = cfg->num_bblocks++;
9699 //                                                      new_bb_after_entry->real_offset = bb->real_offset;
9700                                                         new_bb_after_entry->region = bb->region;
9701
9702                                                         MONO_INST_NEW (cfg, jump, CEE_BR);
9703                                                         MONO_ADD_INS (new_bb_after_entry, jump);
9704                                                         jump->cil_code = bb->cil_code;
9705                                                         jump->inst_target_bb = bb;
9706
9707                                                         previous_bb->next_bb = new_bb_after_entry;
9708                                                         previous_bb = new_bb_after_entry;
9709
9710                                                         if (cfg->verbose_level > 2) {
9711                                                                 printf ("remove_critical_edges %s, added helper BB%d jumping to BB%d\n", mono_method_full_name (cfg->method, TRUE), new_bb_after_entry->block_num, bb->block_num);
9712                                                         }
9713                                                 }
9714                                         }
9715
9716                                         /* Insert new_bb in the BB list */
9717                                         previous_bb->next_bb = new_bb;
9718                                         new_bb->next_bb = bb;
9719                                         previous_bb = new_bb;
9720
9721                                         /* Setup in_bb and out_bb */
9722                                         new_bb->in_bb = mono_mempool_alloc ((cfg)->mempool, sizeof (MonoBasicBlock*));
9723                                         new_bb->in_bb [0] = in_bb;
9724                                         new_bb->in_count = 1;
9725                                         new_bb->out_bb = mono_mempool_alloc ((cfg)->mempool, sizeof (MonoBasicBlock*));
9726                                         new_bb->out_bb [0] = bb;
9727                                         new_bb->out_count = 1;
9728
9729                                         /* Relink in_bb and bb to (from) new_bb */
9730                                         replace_out_block (in_bb, bb, new_bb);
9731                                         replace_out_block_in_code (in_bb, bb, new_bb);
9732                                         replace_in_block (bb, in_bb, new_bb);
9733
9734                                         if (cfg->verbose_level > 2) {
9735                                                 printf ("remove_critical_edges %s, removed critical edge from BB%d to BB%d (added BB%d)\n", mono_method_full_name (cfg->method, TRUE), in_bb->block_num, bb->block_num, new_bb->block_num);
9736                                         }
9737                                 }
9738                         }
9739                 }
9740         }
9741
9742         if (cfg->verbose_level > 3) {
9743                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9744                         int i;
9745                         printf ("remove_critical_edges %s, AFTER BB%d (in:", mono_method_full_name (cfg->method, TRUE), bb->block_num);
9746                         for (i = 0; i < bb->in_count; i++) {
9747                                 printf (" %d", bb->in_bb [i]->block_num);
9748                         }
9749                         printf (") (out:");
9750                         for (i = 0; i < bb->out_count; i++) {
9751                                 printf (" %d", bb->out_bb [i]->block_num);
9752                         }
9753                         printf (")");
9754                         if (bb->last_ins != NULL) {
9755                                 printf (" ");
9756                                 mono_print_tree (bb->last_ins);
9757                         }
9758                         printf ("\n");
9759                 }
9760         }
9761 }
9762
9763 /*
9764  * mini_method_compile:
9765  * @method: the method to compile
9766  * @opts: the optimization flags to use
9767  * @domain: the domain where the method will be compiled in
9768  * @run_cctors: whether we should run type ctors if possible
9769  * @compile_aot: whether this is an AOT compilation
9770  * @parts: debug flag
9771  *
9772  * Returns: a MonoCompile* pointer. Caller must check the exception_type
9773  * field in the returned struct to see if compilation succeded.
9774  */
9775 MonoCompile*
9776 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
9777 {
9778         MonoMethodHeader *header = mono_method_get_header (method);
9779         guint8 *ip;
9780         MonoCompile *cfg;
9781         MonoJitInfo *jinfo;
9782         int dfn = 0, i, code_size_ratio;
9783         gboolean deadce_has_run = FALSE;
9784
9785         mono_jit_stats.methods_compiled++;
9786         if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
9787                 mono_profiler_method_jit (method);
9788
9789         cfg = g_new0 (MonoCompile, 1);
9790         cfg->method = method;
9791         cfg->mempool = mono_mempool_new ();
9792         cfg->opt = opts;
9793         cfg->prof_options = mono_profiler_get_events ();
9794         cfg->run_cctors = run_cctors;
9795         cfg->bb_hash = g_hash_table_new (NULL, NULL);
9796         cfg->domain = domain;
9797         cfg->verbose_level = mini_verbose;
9798         cfg->compile_aot = compile_aot;
9799         if (!header) {
9800                 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
9801                 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
9802                 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
9803                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
9804                 return cfg;
9805         }
9806
9807         ip = (guint8 *)header->code;
9808
9809         cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
9810         cfg->aliasing_info = NULL;
9811
9812         if (cfg->verbose_level > 2)
9813                 g_print ("converting method %s\n", mono_method_full_name (method, TRUE));
9814
9815         /*
9816          * create MonoInst* which represents arguments and local variables
9817          */
9818         mono_compile_create_vars (cfg);
9819
9820         if ((i = mono_method_to_ir (cfg, method, NULL, NULL, cfg->locals_start, NULL, NULL, NULL, 0, FALSE)) < 0) {
9821                 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
9822                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
9823                 /* cfg contains the details of the failure, so let the caller cleanup */
9824                 return cfg;
9825         }
9826
9827         mono_jit_stats.basic_blocks += cfg->num_bblocks;
9828         mono_jit_stats.max_basic_blocks = MAX (cfg->num_bblocks, mono_jit_stats.max_basic_blocks);
9829
9830         if ((cfg->num_varinfo > 2000) && !mono_compile_aot) {
9831                 /*
9832                  * we disable some optimizations if there are too many variables
9833                  * because JIT time may become too expensive. The actual number needs
9834                  * to be tweaked and eventually the non-linear algorithms should be fixed.
9835                  */
9836                 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
9837                 cfg->disable_ssa = TRUE;
9838         }
9839
9840         /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
9841
9842         if (cfg->opt & MONO_OPT_BRANCH)
9843                 optimize_branches (cfg);
9844
9845         if (cfg->opt & MONO_OPT_SSAPRE) {
9846                 remove_critical_edges (cfg);
9847         }
9848
9849         /* Depth-first ordering on basic blocks */
9850         cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
9851
9852         df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
9853         if (cfg->num_bblocks != dfn + 1) {
9854                 MonoBasicBlock *bb;
9855
9856                 cfg->num_bblocks = dfn + 1;
9857
9858                 if (!header->clauses) {
9859                         /* remove unreachable code, because the code in them may be
9860                          * inconsistent  (access to dead variables for example) */
9861                         for (bb = cfg->bb_entry; bb;) {
9862                                 MonoBasicBlock *bbn = bb->next_bb;
9863
9864                                 if (bbn && bbn->region == -1 && !bbn->dfn) {
9865                                         if (cfg->verbose_level > 1)
9866                                                 g_print ("found unreachable code in BB%d\n", bbn->block_num);
9867                                         bb->next_bb = bbn->next_bb;
9868                                         nullify_basic_block (bbn);
9869                                 } else {
9870                                         bb = bb->next_bb;
9871                                 }
9872                         }
9873                 }
9874         }
9875
9876         if (cfg->opt & MONO_OPT_LOOP) {
9877                 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
9878                 mono_compute_natural_loops (cfg);
9879         }
9880
9881         /* after method_to_ir */
9882         if (parts == 1)
9883                 return cfg;
9884
9885 //#define DEBUGSSA "logic_run"
9886 #define DEBUGSSA_CLASS "Tests"
9887 #ifdef DEBUGSSA
9888
9889         if (!header->num_clauses && !cfg->disable_ssa) {
9890                 mono_local_cprop (cfg);
9891                 mono_ssa_compute (cfg);
9892         }
9893 #else
9894
9895         /* fixme: add all optimizations which requires SSA */
9896         if (cfg->opt & (MONO_OPT_SSA | MONO_OPT_ABCREM | MONO_OPT_SSAPRE)) {
9897                 if (!(cfg->comp_done & MONO_COMP_SSA) && !header->num_clauses && !cfg->disable_ssa) {
9898                         mono_local_cprop (cfg);
9899                         mono_ssa_compute (cfg);
9900
9901                         if (cfg->verbose_level >= 2) {
9902                                 print_dfn (cfg);
9903                         }
9904                 }
9905         }
9906 #endif
9907
9908         /* after SSA translation */
9909         if (parts == 2)
9910                 return cfg;
9911
9912         if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
9913                 if (cfg->comp_done & MONO_COMP_SSA) {
9914                         mono_ssa_cprop (cfg);
9915                 } else {
9916                         mono_local_cprop (cfg);
9917                 }
9918         }
9919
9920         if (cfg->comp_done & MONO_COMP_SSA) {
9921                 //mono_ssa_deadce (cfg);
9922
9923                 //mono_ssa_strength_reduction (cfg);
9924
9925                 if (cfg->opt & MONO_OPT_SSAPRE) {
9926                         mono_perform_ssapre (cfg);
9927                         //mono_local_cprop (cfg);
9928                 }
9929
9930                 if (cfg->opt & MONO_OPT_DEADCE) {
9931                         mono_ssa_deadce (cfg);
9932                         deadce_has_run = TRUE;
9933                 }
9934
9935                 if ((cfg->flags & MONO_CFG_HAS_LDELEMA) && (cfg->opt & MONO_OPT_ABCREM))
9936                         mono_perform_abc_removal (cfg);
9937
9938                 mono_ssa_remove (cfg);
9939
9940                 if (cfg->opt & MONO_OPT_BRANCH)
9941                         optimize_branches (cfg);
9942         }
9943
9944         /* after SSA removal */
9945         if (parts == 3)
9946                 return cfg;
9947
9948         if (cfg->verbose_level > 4) {
9949                 printf ("BEFORE DECOMPSE START\n");
9950                 mono_print_code (cfg);
9951                 printf ("BEFORE DECOMPSE END\n");
9952         }
9953
9954         decompose_pass (cfg);
9955
9956         if (cfg->got_var) {
9957                 GList *regs;
9958
9959                 g_assert (cfg->got_var_allocated);
9960
9961                 /*
9962                  * Allways allocate the GOT var to a register, because keeping it
9963                  * in memory will increase the number of live temporaries in some
9964                  * code created by inssel.brg, leading to the well known spills+
9965                  * branches problem. Testcase: mcs crash in
9966                  * System.MonoCustomAttrs:GetCustomAttributes.
9967                  */
9968                 regs = mono_arch_get_global_int_regs (cfg);
9969                 g_assert (regs);
9970                 cfg->got_var->opcode = OP_REGVAR;
9971                 cfg->got_var->dreg = GPOINTER_TO_INT (regs->data);
9972                 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
9973
9974                 g_list_free (regs);
9975         }
9976
9977         if (cfg->opt & MONO_OPT_LINEARS) {
9978                 GList *vars, *regs;
9979
9980                 /* For now, compute aliasing info only if needed for deadce... */
9981                 if ((cfg->opt & MONO_OPT_DEADCE) && (! deadce_has_run) && (header->num_clauses == 0)) {
9982                         cfg->aliasing_info = mono_build_aliasing_information (cfg);
9983                 }
9984
9985                 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
9986                 cfg->comp_done &= ~MONO_COMP_LIVENESS;
9987                 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
9988                         mono_analyze_liveness (cfg);
9989
9990                 if (cfg->aliasing_info != NULL) {
9991                         mono_aliasing_deadce (cfg->aliasing_info);
9992                         deadce_has_run = TRUE;
9993                 }
9994
9995                 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
9996                         regs = mono_arch_get_global_int_regs (cfg);
9997                         if (cfg->got_var)
9998                                 regs = g_list_delete_link (regs, regs);
9999                         mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
10000                 }
10001
10002                 if (cfg->aliasing_info != NULL) {
10003                         mono_destroy_aliasing_information (cfg->aliasing_info);
10004                         cfg->aliasing_info = NULL;
10005                 }
10006         }
10007
10008         //mono_print_code (cfg);
10009
10010     //print_dfn (cfg);
10011
10012         /* variables are allocated after decompose, since decompose could create temps */
10013         mono_arch_allocate_vars (cfg);
10014
10015         if (cfg->opt & MONO_OPT_CFOLD)
10016                 mono_constant_fold (cfg);
10017
10018         mini_select_instructions (cfg);
10019
10020         mono_codegen (cfg);
10021         if (cfg->verbose_level >= 2) {
10022                 char *id =  mono_method_full_name (cfg->method, FALSE);
10023                 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
10024                 g_free (id);
10025         }
10026
10027         if (cfg->method->dynamic) {
10028                 jinfo = g_malloc0 (sizeof (MonoJitInfo) + (header->num_clauses * sizeof (MonoJitExceptionInfo)));
10029         } else {
10030                 /* we access cfg->domain->mp */
10031                 mono_domain_lock (cfg->domain);
10032                 jinfo = mono_mempool_alloc0 (cfg->domain->mp, sizeof (MonoJitInfo) + (header->num_clauses * sizeof (MonoJitExceptionInfo)));
10033                 mono_domain_unlock (cfg->domain);
10034         }
10035
10036         jinfo->method = method;
10037         jinfo->code_start = cfg->native_code;
10038         jinfo->code_size = cfg->code_len;
10039         jinfo->used_regs = cfg->used_int_regs;
10040         jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
10041         jinfo->cas_inited = FALSE; /* initialization delayed at the first stalk walk using this method */
10042
10043         if (header->num_clauses) {
10044                 int i;
10045
10046                 jinfo->num_clauses = header->num_clauses;
10047
10048                 for (i = 0; i < header->num_clauses; i++) {
10049                         MonoExceptionClause *ec = &header->clauses [i];
10050                         MonoJitExceptionInfo *ei = &jinfo->clauses [i];
10051                         MonoBasicBlock *tblock;
10052                         MonoInst *exvar;
10053
10054                         ei->flags = ec->flags;
10055
10056                         exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
10057                         ei->exvar_offset = exvar ? exvar->inst_offset : 0;
10058
10059                         if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
10060                                 tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->data.filter_offset);
10061                                 g_assert (tblock);
10062                                 ei->data.filter = cfg->native_code + tblock->native_offset;
10063                         } else {
10064                                 ei->data.catch_class = ec->data.catch_class;
10065                         }
10066
10067                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset);
10068                         g_assert (tblock);
10069                         ei->try_start = cfg->native_code + tblock->native_offset;
10070                         g_assert (tblock->native_offset);
10071                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset + ec->try_len);
10072                         g_assert (tblock);
10073                         ei->try_end = cfg->native_code + tblock->native_offset;
10074                         g_assert (tblock->native_offset);
10075                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->handler_offset);
10076                         g_assert (tblock);
10077                         ei->handler_start = cfg->native_code + tblock->native_offset;
10078                 }
10079         }
10080
10081         cfg->jit_info = jinfo;
10082 #if defined(__arm__)
10083         mono_arch_fixup_jinfo (cfg);
10084 #endif
10085
10086         mono_domain_lock (cfg->domain);
10087         mono_jit_info_table_add (cfg->domain, jinfo);
10088
10089         if (cfg->method->dynamic)
10090                 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = jinfo;
10091         mono_domain_unlock (cfg->domain);
10092
10093         /* collect statistics */
10094         mono_jit_stats.allocated_code_size += cfg->code_len;
10095         code_size_ratio = cfg->code_len;
10096         if (code_size_ratio > mono_jit_stats.biggest_method_size) {
10097                         mono_jit_stats.biggest_method_size = code_size_ratio;
10098                         mono_jit_stats.biggest_method = method;
10099         }
10100         code_size_ratio = (code_size_ratio * 100) / mono_method_get_header (method)->code_size;
10101         if (code_size_ratio > mono_jit_stats.max_code_size_ratio) {
10102                 mono_jit_stats.max_code_size_ratio = code_size_ratio;
10103                 mono_jit_stats.max_ratio_method = method;
10104         }
10105         mono_jit_stats.native_code_size += cfg->code_len;
10106
10107         if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
10108                 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
10109
10110         return cfg;
10111 }
10112
10113 static gpointer
10114 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt)
10115 {
10116         MonoCompile *cfg;
10117         GHashTable *jit_code_hash;
10118         gpointer code = NULL;
10119         MonoJitInfo *info;
10120
10121         jit_code_hash = target_domain->jit_code_hash;
10122
10123         method = mono_get_inflated_method (method);
10124
10125 #ifdef MONO_USE_AOT_COMPILER
10126         if (!mono_compile_aot && (opt & MONO_OPT_AOT) && !(mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)) {
10127                 MonoJitInfo *info;
10128                 MonoDomain *domain = mono_domain_get ();
10129
10130                 mono_domain_lock (domain);
10131
10132                 mono_class_init (method->klass);
10133                 if ((info = mono_aot_get_method (domain, method))) {
10134                         g_hash_table_insert (domain->jit_code_hash, method, info);
10135                         mono_domain_unlock (domain);
10136                         mono_runtime_class_init (mono_class_vtable (domain, method->klass));
10137                         return info->code_start;
10138                 }
10139
10140                 mono_domain_unlock (domain);
10141         }
10142 #endif
10143
10144         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
10145             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
10146                 MonoMethod *nm;
10147                 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
10148
10149                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE && !MONO_CLASS_IS_IMPORT(method->klass))
10150                         g_error ("Method '%s' in assembly '%s' contains native code and mono can't run it. The assembly was probably created by Managed C++.\n", mono_method_full_name (method, TRUE), method->klass->image->name);
10151
10152                 if (!piinfo->addr) {
10153                         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
10154                                 piinfo->addr = mono_lookup_internal_call (method);
10155                         else
10156                                 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
10157                                         mono_lookup_pinvoke_call (method, NULL, NULL);
10158                 }
10159                         nm = mono_marshal_get_native_wrapper (method);
10160                         return mono_get_addr_from_ftnptr (mono_compile_method (nm));
10161
10162                         //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
10163                         //mono_debug_add_wrapper (method, nm);
10164         } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
10165                 const char *name = method->name;
10166                 MonoMethod *nm;
10167
10168                 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
10169                         if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
10170                                 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
10171                                 g_assert (mi);
10172                                 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper (mi));
10173                         } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
10174                                 nm = mono_marshal_get_delegate_invoke (method);
10175                                         return mono_get_addr_from_ftnptr (mono_compile_method (nm));
10176                         } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
10177                                 nm = mono_marshal_get_delegate_begin_invoke (method);
10178                                 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
10179                         } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
10180                                 nm = mono_marshal_get_delegate_end_invoke (method);
10181                                 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
10182                         }
10183                 }
10184                 return NULL;
10185         }
10186
10187         cfg = mini_method_compile (method, opt, target_domain, TRUE, FALSE, 0);
10188
10189         switch (cfg->exception_type) {
10190         case MONO_EXCEPTION_NONE: break;
10191         case MONO_EXCEPTION_TYPE_LOAD:
10192         case MONO_EXCEPTION_MISSING_FIELD:
10193         case MONO_EXCEPTION_MISSING_METHOD: {
10194                 /* Throw a type load exception if needed */
10195                 MonoLoaderError *error = mono_loader_get_last_error ();
10196
10197                 mono_destroy_compile (cfg);
10198                 if (error) {
10199                         MonoException *ex = mono_loader_error_prepare_exception (error);
10200                         mono_raise_exception (ex);
10201                 } else {
10202                         g_assert_not_reached ();
10203                 }
10204         }
10205         case MONO_EXCEPTION_INVALID_PROGRAM: {
10206                 MonoException *ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
10207                 mono_destroy_compile (cfg);
10208                 mono_raise_exception (ex);
10209                 break;
10210         }
10211         case MONO_EXCEPTION_UNVERIFIABLE_IL: {
10212                 MonoException *ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
10213                 mono_destroy_compile (cfg);
10214                 mono_raise_exception (ex);
10215                 break;
10216         }
10217         /* this can only be set if the security manager is active */
10218         case MONO_EXCEPTION_SECURITY_LINKDEMAND: {
10219                 MonoAssembly *assembly = mono_image_get_assembly (method->klass->image);
10220                 MonoReflectionAssembly *refass = (MonoReflectionAssembly*) mono_assembly_get_object (target_domain, assembly);
10221                 MonoReflectionMethod *refmet = mono_method_get_object (target_domain, method, NULL);
10222                 MonoSecurityManager* secman = mono_security_manager_get_methods ();
10223                 MonoObject *exc = NULL;
10224                 gpointer args [3];
10225
10226                 args [0] = &cfg->exception_data;
10227                 args [1] = refass;
10228                 args [2] = refmet;
10229                 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
10230
10231                 mono_destroy_compile (cfg);
10232                 cfg = NULL;
10233
10234                 mono_raise_exception ((MonoException*)exc);
10235         }
10236         default:
10237                 g_assert_not_reached ();
10238         }
10239
10240         mono_domain_lock (target_domain);
10241
10242         /* Check if some other thread already did the job. In this case, we can
10243        discard the code this thread generated. */
10244
10245         if ((info = g_hash_table_lookup (target_domain->jit_code_hash, method))) {
10246                 /* We can't use a domain specific method in another domain */
10247                 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
10248                         code = info->code_start;
10249 //                      printf("Discarding code for method %s\n", method->name);
10250                 }
10251         }
10252
10253         if (code == NULL) {
10254                 g_hash_table_insert (jit_code_hash, method, cfg->jit_info);
10255                 code = cfg->native_code;
10256         }
10257
10258         mono_destroy_compile (cfg);
10259
10260         if (target_domain->jump_target_hash) {
10261                 MonoJumpInfo patch_info;
10262                 GSList *list, *tmp;
10263                 list = g_hash_table_lookup (target_domain->jump_target_hash, method);
10264                 if (list) {
10265                         patch_info.next = NULL;
10266                         patch_info.ip.i = 0;
10267                         patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
10268                         patch_info.data.method = method;
10269                         g_hash_table_remove (target_domain->jump_target_hash, method);
10270                 }
10271                 for (tmp = list; tmp; tmp = tmp->next)
10272                         mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, TRUE);
10273                 g_slist_free (list);
10274         }
10275
10276         mono_domain_unlock (target_domain);
10277
10278         mono_runtime_class_init (mono_class_vtable (target_domain, method->klass));
10279         return code;
10280 }
10281
10282 static gpointer
10283 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt)
10284 {
10285         MonoDomain *target_domain, *domain = mono_domain_get ();
10286         MonoJitInfo *info;
10287         gpointer p;
10288         MonoJitICallInfo *callinfo = NULL;
10289
10290         /*
10291          * ICALL wrappers are handled specially, since there is only one copy of them
10292          * shared by all appdomains.
10293          */
10294         if ((method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) && (strstr (method->name, "__icall_wrapper_") == method->name)) {
10295                 const char *icall_name;
10296
10297                 icall_name = method->name + strlen ("__icall_wrapper_");
10298                 g_assert (icall_name);
10299                 callinfo = mono_find_jit_icall_by_name (icall_name);
10300                 g_assert (callinfo);
10301
10302                 /* Must be domain neutral since there is only one copy */
10303                 opt |= MONO_OPT_SHARED;
10304         }
10305
10306         if (opt & MONO_OPT_SHARED)
10307                 target_domain = mono_get_root_domain ();
10308         else
10309                 target_domain = domain;
10310
10311         mono_domain_lock (target_domain);
10312
10313         if ((info = g_hash_table_lookup (target_domain->jit_code_hash, method))) {
10314                 /* We can't use a domain specific method in another domain */
10315                 if (! ((domain != target_domain) && !info->domain_neutral)) {
10316                         mono_domain_unlock (target_domain);
10317                         mono_jit_stats.methods_lookups++;
10318                         mono_runtime_class_init (mono_class_vtable (domain, method->klass));
10319                         return mono_create_ftnptr (target_domain, info->code_start);
10320                 }
10321         }
10322
10323         mono_domain_unlock (target_domain);
10324         p = mono_create_ftnptr (target_domain, mono_jit_compile_method_inner (method, target_domain, opt));
10325
10326         if (callinfo) {
10327                 mono_jit_lock ();
10328                 if (!callinfo->wrapper) {
10329                         callinfo->wrapper = p;
10330                         mono_register_jit_icall_wrapper (callinfo, p);
10331                         mono_debug_add_icall_wrapper (method, callinfo);
10332                 }
10333                 mono_jit_unlock ();
10334         }
10335
10336         return p;
10337 }
10338
10339 static gpointer
10340 mono_jit_compile_method (MonoMethod *method)
10341 {
10342         return mono_jit_compile_method_with_opt (method, default_opt);
10343 }
10344
10345 static void
10346 invalidated_delegate_trampoline (char *desc)
10347 {
10348         g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
10349                  "See http://www.go-mono.com/delegate.html for an explanation and ways to fix this.",
10350                  desc);
10351 }
10352
10353 /*
10354  * mono_jit_free_method:
10355  *
10356  *  Free all memory allocated by the JIT for METHOD.
10357  */
10358 static void
10359 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
10360 {
10361         MonoJitDynamicMethodInfo *ji;
10362         gboolean destroy = TRUE;
10363
10364         g_assert (method->dynamic);
10365
10366         mono_domain_lock (domain);
10367         ji = mono_dynamic_code_hash_lookup (domain, method);
10368         mono_domain_unlock (domain);
10369
10370         if (!ji)
10371                 return;
10372         mono_domain_lock (domain);
10373         g_hash_table_remove (domain->dynamic_code_hash, method);
10374         g_hash_table_remove (domain->jit_code_hash, method);
10375         g_hash_table_remove (domain->jump_trampoline_hash, method);
10376         mono_domain_unlock (domain);
10377
10378 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
10379         if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
10380                 /*
10381                  * Instead of freeing the code, change it to call an error routine
10382                  * so people can fix their code.
10383                  */
10384                 char *type = mono_type_full_name (&method->klass->byval_arg);
10385                 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
10386
10387                 g_free (type);
10388                 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
10389                 destroy = FALSE;
10390         }
10391 #endif
10392
10393         /*
10394          * This needs to be done before freeing code_mp, since the code address is the
10395          * key in the table, so if we the code_mp first, another thread can grab the
10396          * same code address and replace our entry in the table.
10397          */
10398         mono_jit_info_table_remove (domain, ji->ji);
10399
10400         if (destroy)
10401                 mono_code_manager_destroy (ji->code_mp);
10402         g_free (ji->ji);
10403         g_free (ji);
10404 }
10405
10406 static gpointer
10407 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
10408 {
10409         MonoDomain *target_domain;
10410         MonoJitInfo *info;
10411
10412         if (default_opt & MONO_OPT_SHARED)
10413                 target_domain = mono_get_root_domain ();
10414         else
10415                 target_domain = domain;
10416
10417         mono_domain_lock (target_domain);
10418
10419         if ((info = g_hash_table_lookup (target_domain->jit_code_hash, method))) {
10420                 /* We can't use a domain specific method in another domain */
10421                 if (! ((domain != target_domain) && !info->domain_neutral)) {
10422                         mono_domain_unlock (target_domain);
10423                         mono_jit_stats.methods_lookups++;
10424                         return info->code_start;
10425                 }
10426         }
10427
10428         mono_domain_unlock (target_domain);
10429
10430         return NULL;
10431 }
10432
10433 /**
10434  * mono_jit_runtime_invoke:
10435  * @method: the method to invoke
10436  * @obj: this pointer
10437  * @params: array of parameter values.
10438  * @exc: used to catch exceptions objects
10439  */
10440 static MonoObject*
10441 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
10442 {
10443         MonoMethod *invoke;
10444         MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc, void* compiled_method);
10445         void* compiled_method;
10446
10447         if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
10448                 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
10449                 return NULL;
10450         }
10451
10452         method = mono_get_inflated_method (method);
10453         invoke = mono_marshal_get_runtime_invoke (method);
10454         runtime_invoke = mono_jit_compile_method (invoke);
10455
10456         /* We need this here becuase mono_marshal_get_runtime_invoke can be place
10457          * the helper method in System.Object and not the target class
10458          */
10459         mono_runtime_class_init (mono_class_vtable (mono_domain_get (), method->klass));
10460
10461         compiled_method = mono_jit_compile_method (method);
10462         return runtime_invoke (obj, params, exc, compiled_method);
10463 }
10464
10465 #ifdef PLATFORM_WIN32
10466 #define GET_CONTEXT \
10467         struct sigcontext *ctx = (struct sigcontext*)_dummy;
10468 #else
10469 #ifdef __sparc
10470 #define GET_CONTEXT \
10471     void *ctx = context;
10472 #elif defined (MONO_ARCH_USE_SIGACTION)
10473 #define GET_CONTEXT \
10474     void *ctx = context;
10475 #else
10476 #define GET_CONTEXT \
10477         void **_p = (void **)&_dummy; \
10478         struct sigcontext *ctx = (struct sigcontext *)++_p;
10479 #endif
10480 #endif
10481
10482 #ifdef MONO_ARCH_USE_SIGACTION
10483 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy, siginfo_t *info, void *context)
10484 #else
10485 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy)
10486 #endif
10487
10488 static void
10489 SIG_HANDLER_SIGNATURE (sigfpe_signal_handler)
10490 {
10491         MonoException *exc = NULL;
10492 #ifndef MONO_ARCH_USE_SIGACTION
10493         void *info = NULL;
10494 #endif
10495         GET_CONTEXT;
10496
10497 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
10498         if (mono_arch_is_int_overflow (ctx, info))
10499                 exc = mono_get_exception_arithmetic ();
10500         else
10501                 exc = mono_get_exception_divide_by_zero ();
10502 #else
10503         exc = mono_get_exception_divide_by_zero ();
10504 #endif
10505
10506         mono_arch_handle_exception (ctx, exc, FALSE);
10507 }
10508
10509 static void
10510 SIG_HANDLER_SIGNATURE (sigill_signal_handler)
10511 {
10512         MonoException *exc;
10513         GET_CONTEXT;
10514
10515         exc = mono_get_exception_execution_engine ("SIGILL");
10516
10517         mono_arch_handle_exception (ctx, exc, FALSE);
10518 }
10519
10520 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
10521
10522 #ifndef MONO_ARCH_USE_SIGACTION
10523 #error "Can't use sigaltstack without sigaction"
10524 #endif
10525
10526 #endif
10527
10528 static void
10529 SIG_HANDLER_SIGNATURE (sigsegv_signal_handler)
10530 {
10531         MonoException *exc = NULL;
10532         MonoJitInfo *ji;
10533
10534 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
10535         MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
10536 #endif
10537         GET_CONTEXT;
10538
10539 #ifdef MONO_ARCH_USE_SIGACTION
10540         if (debug_options.collect_pagefault_stats) {
10541                 if (mono_raw_buffer_is_pagefault (info->si_addr)) {
10542                         mono_raw_buffer_handle_pagefault (info->si_addr);
10543                         return;
10544                 }
10545                 if (mono_aot_is_pagefault (info->si_addr)) {
10546                         mono_aot_handle_pagefault (info->si_addr);
10547                         return;
10548                 }
10549         }
10550 #endif
10551
10552 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
10553         /* Can't allocate memory using Boehm GC on altstack */
10554         if (jit_tls->stack_size &&
10555                 ((guint8*)info->si_addr >= (guint8*)jit_tls->end_of_stack - jit_tls->stack_size) &&
10556                 ((guint8*)info->si_addr < (guint8*)jit_tls->end_of_stack))
10557                 exc = mono_domain_get ()->stack_overflow_ex;
10558         else
10559                 exc = mono_domain_get ()->null_reference_ex;
10560 #endif
10561
10562         ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context(ctx));
10563         if (!ji) {
10564                 mono_handle_native_sigsegv (SIGSEGV, ctx);
10565         }
10566
10567         mono_arch_handle_exception (ctx, exc, FALSE);
10568 }
10569
10570 static void
10571 SIG_HANDLER_SIGNATURE (sigabrt_signal_handler)
10572 {
10573         MonoJitInfo *ji;
10574         GET_CONTEXT;
10575
10576         ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context(ctx));
10577         if (!ji) {
10578                 mono_handle_native_sigsegv (SIGABRT, ctx);
10579         }
10580 }
10581
10582 static void
10583 SIG_HANDLER_SIGNATURE (sigusr1_signal_handler)
10584 {
10585         gboolean running_managed;
10586         MonoException *exc;
10587         MonoThread *thread = mono_thread_current ();
10588         void *ji;
10589
10590         GET_CONTEXT;
10591
10592         if (thread->thread_dump_requested) {
10593                 thread->thread_dump_requested = FALSE;
10594
10595                 mono_print_thread_dump (ctx);
10596         }
10597
10598         /*
10599          * FIXME:
10600          * This is an async signal, so the code below must not call anything which
10601          * is not async safe. That includes the pthread locking functions. If we
10602          * know that we interrupted managed code, then locking is safe.
10603          */
10604         ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context(ctx));
10605         running_managed = ji != NULL;
10606
10607         exc = mono_thread_request_interruption (running_managed);
10608         if (!exc) return;
10609
10610         mono_arch_handle_exception (ctx, exc, FALSE);
10611 }
10612
10613 static void
10614 SIG_HANDLER_SIGNATURE (sigprof_signal_handler)
10615 {
10616         GET_CONTEXT;
10617
10618         mono_profiler_stat_hit (mono_arch_ip_from_context (ctx), ctx);
10619 }
10620
10621 static void
10622 SIG_HANDLER_SIGNATURE (sigquit_signal_handler)
10623 {
10624         GET_CONTEXT;
10625
10626         printf ("Full thread dump:\n");
10627
10628         mono_threads_request_thread_dump ();
10629
10630         /*
10631          * print_thread_dump () skips the current thread, since sending a signal
10632          * to it would invoke the signal handler below the sigquit signal handler,
10633          * and signal handlers don't create an lmf, so the stack walk could not
10634          * be performed.
10635          */
10636         mono_print_thread_dump (ctx);
10637 }
10638
10639 static void
10640 SIG_HANDLER_SIGNATURE (sigint_signal_handler)
10641 {
10642         MonoException *exc;
10643         GET_CONTEXT;
10644
10645         exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
10646
10647         mono_arch_handle_exception (ctx, exc, FALSE);
10648 }
10649
10650 static void
10651 SIG_HANDLER_SIGNATURE (sigusr2_signal_handler)
10652 {
10653         gboolean enabled = mono_trace_is_enabled ();
10654
10655         mono_trace_enable (!enabled);
10656 }
10657
10658 #ifndef PLATFORM_WIN32
10659 static void
10660 add_signal_handler (int signo, gpointer handler)
10661 {
10662         struct sigaction sa;
10663
10664 #ifdef MONO_ARCH_USE_SIGACTION
10665         sa.sa_sigaction = handler;
10666         sigemptyset (&sa.sa_mask);
10667         sa.sa_flags = SA_SIGINFO;
10668 #else
10669         sa.sa_handler = handler;
10670         sigemptyset (&sa.sa_mask);
10671         sa.sa_flags = 0;
10672 #endif
10673         g_assert (sigaction (signo, &sa, NULL) != -1);
10674 }
10675 #endif
10676
10677 static void
10678 mono_runtime_install_handlers (void)
10679 {
10680 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
10681         struct sigaction sa;
10682 #endif
10683
10684 #ifdef PLATFORM_WIN32
10685         win32_seh_init();
10686         win32_seh_set_handler(SIGFPE, sigfpe_signal_handler);
10687         win32_seh_set_handler(SIGILL, sigill_signal_handler);
10688         win32_seh_set_handler(SIGSEGV, sigsegv_signal_handler);
10689         if (debug_options.handle_sigint)
10690                 win32_seh_set_handler(SIGINT, sigint_signal_handler);
10691
10692 #else /* !PLATFORM_WIN32 */
10693
10694         /* libpthreads has its own implementation of sigaction(),
10695          * but it seems to work well with our current exception
10696          * handlers. If not we must call syscall directly instead
10697          * of sigaction */
10698
10699         if (debug_options.handle_sigint)
10700                 add_signal_handler (SIGINT, sigint_signal_handler);
10701
10702         add_signal_handler (SIGFPE, sigfpe_signal_handler);
10703         add_signal_handler (SIGQUIT, sigquit_signal_handler);
10704         add_signal_handler (SIGILL, sigill_signal_handler);
10705         add_signal_handler (SIGBUS, sigsegv_signal_handler);
10706         if (mono_jit_trace_calls != NULL)
10707                 add_signal_handler (SIGUSR2, sigusr2_signal_handler);
10708
10709         add_signal_handler (mono_thread_get_abort_signal (), sigusr1_signal_handler);
10710         signal (SIGPIPE, SIG_IGN);
10711
10712         add_signal_handler (SIGABRT, sigabrt_signal_handler);
10713
10714         /* catch SIGSEGV */
10715 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
10716         sa.sa_sigaction = sigsegv_signal_handler;
10717         sigemptyset (&sa.sa_mask);
10718         sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
10719         g_assert (sigaction (SIGSEGV, &sa, NULL) != -1);
10720 #else
10721         add_signal_handler (SIGSEGV, sigsegv_signal_handler);
10722 #endif
10723 #endif /* PLATFORM_WIN32 */
10724 }
10725
10726
10727 #ifdef HAVE_LINUX_RTC_H
10728 #include <linux/rtc.h>
10729 #include <sys/ioctl.h>
10730 #include <fcntl.h>
10731 static int rtc_fd = -1;
10732
10733 static int
10734 enable_rtc_timer (gboolean enable)
10735 {
10736         int flags;
10737         flags = fcntl (rtc_fd, F_GETFL);
10738         if (flags < 0) {
10739                 perror ("getflags");
10740                 return 0;
10741         }
10742         if (enable)
10743                 flags |= FASYNC;
10744         else
10745                 flags &= ~FASYNC;
10746         if (fcntl (rtc_fd, F_SETFL, flags) == -1) {
10747                 perror ("setflags");
10748                 return 0;
10749         }
10750         return 1;
10751 }
10752 #endif
10753
10754 static void
10755 setup_stat_profiler (void)
10756 {
10757 #ifdef ITIMER_PROF
10758         struct itimerval itval;
10759         static int inited = 0;
10760 #ifdef HAVE_LINUX_RTC_H
10761         const char *rtc_freq;
10762         if (!inited && (rtc_freq = g_getenv ("MONO_RTC"))) {
10763                 int freq = 0;
10764                 inited = 1;
10765                 if (*rtc_freq)
10766                         freq = atoi (rtc_freq);
10767                 if (!freq)
10768                         freq = 1024;
10769                 rtc_fd = open ("/dev/rtc", O_RDONLY);
10770                 if (rtc_fd == -1) {
10771                         perror ("open /dev/rtc");
10772                         return;
10773                 }
10774                 add_signal_handler (SIGPROF, sigprof_signal_handler);
10775                 if (ioctl (rtc_fd, RTC_IRQP_SET, freq) == -1) {
10776                         perror ("set rtc freq");
10777                         return;
10778                 }
10779                 if (ioctl (rtc_fd, RTC_PIE_ON, 0) == -1) {
10780                         perror ("start rtc");
10781                         return;
10782                 }
10783                 if (fcntl (rtc_fd, F_SETSIG, SIGPROF) == -1) {
10784                         perror ("setsig");
10785                         return;
10786                 }
10787                 if (fcntl (rtc_fd, F_SETOWN, getpid ()) == -1) {
10788                         perror ("setown");
10789                         return;
10790                 }
10791                 enable_rtc_timer (TRUE);
10792                 return;
10793         }
10794         if (rtc_fd >= 0)
10795                 return;
10796 #endif
10797
10798         itval.it_interval.tv_usec = 999;
10799         itval.it_interval.tv_sec = 0;
10800         itval.it_value = itval.it_interval;
10801         setitimer (ITIMER_PROF, &itval, NULL);
10802         if (inited)
10803                 return;
10804         inited = 1;
10805         add_signal_handler (SIGPROF, sigprof_signal_handler);
10806 #endif
10807 }
10808
10809 /* mono_jit_create_remoting_trampoline:
10810  * @method: pointer to the method info
10811  *
10812  * Creates a trampoline which calls the remoting functions. This
10813  * is used in the vtable of transparent proxies.
10814  *
10815  * Returns: a pointer to the newly created code
10816  */
10817 static gpointer
10818 mono_jit_create_remoting_trampoline (MonoMethod *method, MonoRemotingTarget target)
10819 {
10820         MonoMethod *nm;
10821         guint8 *addr = NULL;
10822
10823         if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
10824             (mono_method_signature (method)->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
10825                 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
10826                 addr = mono_compile_method (nm);
10827         } else {
10828                 addr = mono_compile_method (method);
10829         }
10830         return mono_get_addr_from_ftnptr (addr);
10831 }
10832
10833 static void
10834 mini_parse_debug_options (void)
10835 {
10836         char *options = getenv ("MONO_DEBUG");
10837         gchar **args, **ptr;
10838
10839         if (!options)
10840                 return;
10841
10842         args = g_strsplit (options, ",", -1);
10843
10844         for (ptr = args; ptr && *ptr; ptr++) {
10845                 const char *arg = *ptr;
10846
10847                 if (!strcmp (arg, "handle-sigint"))
10848                         debug_options.handle_sigint = TRUE;
10849                 else if (!strcmp (arg, "keep-delegates"))
10850                         debug_options.keep_delegates = TRUE;
10851                 else if (!strcmp (arg, "collect-pagefault-stats"))
10852                         debug_options.collect_pagefault_stats = TRUE;
10853                 else {
10854                         fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
10855                         fprintf (stderr, "Available options: 'handle-sigint', 'keep-delegates', 'collect-pagefault-stats'\n");
10856                         exit (1);
10857                 }
10858         }
10859 }
10860
10861 MonoDomain *
10862 mini_init (const char *filename)
10863 {
10864         MonoDomain *domain;
10865
10866         /* Happens when using the embedding interface */
10867         if (!default_opt_set)
10868                 default_opt = mono_parse_default_optimizations (NULL);
10869
10870         InitializeCriticalSection (&jit_mutex);
10871
10872         global_codeman = mono_code_manager_new ();
10873         jit_icall_name_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
10874
10875         mono_arch_cpu_init ();
10876
10877         mono_init_trampolines ();
10878
10879         mono_init_exceptions ();
10880
10881         if (!g_thread_supported ())
10882                 g_thread_init (NULL);
10883
10884         if (getenv ("MONO_DEBUG") != NULL)
10885                 mini_parse_debug_options ();
10886
10887         /*
10888          * Handle the case when we are called from a thread different from the main thread,
10889          * confusing libgc.
10890          * FIXME: Move this to libgc where it belongs.
10891          *
10892          * we used to do this only when running on valgrind,
10893          * but it happens also in other setups.
10894          */
10895 #if defined(HAVE_BOEHM_GC)
10896 #if defined(HAVE_PTHREAD_GETATTR_NP) && defined(HAVE_PTHREAD_ATTR_GETSTACK)
10897         {
10898                 size_t size;
10899                 void *sstart;
10900                 pthread_attr_t attr;
10901                 pthread_getattr_np (pthread_self (), &attr);
10902                 pthread_attr_getstack (&attr, &sstart, &size);
10903                 pthread_attr_destroy (&attr);
10904                 /*g_print ("stackbottom pth is: %p\n", (char*)sstart + size);*/
10905 #ifdef __ia64__
10906                 /*
10907                  * The calculation above doesn't seem to work on ia64, also we need to set
10908                  * GC_register_stackbottom as well, but don't know how.
10909                  */
10910 #else
10911                 GC_stackbottom = (char*)sstart + size;
10912 #endif
10913         }
10914 #elif defined(HAVE_PTHREAD_GET_STACKSIZE_NP) && defined(HAVE_PTHREAD_GET_STACKADDR_NP)
10915                 GC_stackbottom = (char*)pthread_get_stackaddr_np (pthread_self ());
10916 #else
10917         {
10918                 gsize stack_bottom = (gsize)&domain;
10919                 stack_bottom += 4095;
10920                 stack_bottom &= ~4095;
10921                 /*g_print ("stackbottom is: %p\n", (char*)stack_bottom);*/
10922                 GC_stackbottom = (char*)stack_bottom;
10923         }
10924 #endif
10925 #endif
10926         MONO_GC_PRE_INIT ();
10927
10928         mono_jit_tls_id = TlsAlloc ();
10929         setup_jit_tls_data ((gpointer)-1, mono_thread_abort);
10930
10931         mono_burg_init ();
10932
10933         if (default_opt & MONO_OPT_AOT)
10934                 mono_aot_init ();
10935
10936         mono_runtime_install_handlers ();
10937         mono_threads_install_cleanup (mini_thread_cleanup);
10938
10939 #define JIT_TRAMPOLINES_WORK
10940 #ifdef JIT_TRAMPOLINES_WORK
10941         mono_install_compile_method (mono_jit_compile_method);
10942         mono_install_free_method (mono_jit_free_method);
10943         mono_install_trampoline (mono_create_jit_trampoline);
10944         mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
10945         mono_install_delegate_trampoline (mono_create_delegate_trampoline);
10946 #endif
10947 #define JIT_INVOKE_WORKS
10948 #ifdef JIT_INVOKE_WORKS
10949         mono_install_runtime_invoke (mono_jit_runtime_invoke);
10950         mono_install_handler (mono_arch_get_throw_exception ());
10951 #endif
10952         mono_install_stack_walk (mono_jit_walk_stack);
10953         mono_install_init_vtable (mono_aot_init_vtable);
10954         mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
10955         mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
10956
10957         if (debug_options.collect_pagefault_stats) {
10958                 mono_raw_buffer_set_make_unreadable (TRUE);
10959                 mono_aot_set_make_unreadable (TRUE);
10960         }
10961
10962         domain = mono_init_from_assembly (filename, filename);
10963         mono_icall_init ();
10964
10965         mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
10966                                 ves_icall_get_frame_info);
10967         mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
10968                                 ves_icall_get_trace);
10969         mono_add_internal_call ("System.Exception::get_trace",
10970                                 ves_icall_System_Exception_get_trace);
10971         mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityFrame",
10972                                 ves_icall_System_Security_SecurityFrame_GetSecurityFrame);
10973         mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityStack",
10974                                 ves_icall_System_Security_SecurityFrame_GetSecurityStack);
10975         mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
10976                                 mono_runtime_install_handlers);
10977
10978
10979         create_helper_signature ();
10980
10981 #define JIT_CALLS_WORK
10982 #ifdef JIT_CALLS_WORK
10983         /* Needs to be called here since register_jit_icall depends on it */
10984         mono_marshal_init ();
10985
10986         mono_arch_register_lowlevel_calls ();
10987         register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
10988         register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
10989         register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
10990         register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
10991         register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
10992         register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "void", TRUE);
10993         register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
10994
10995         register_icall (mono_arch_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
10996         register_icall (mono_arch_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
10997         register_icall (mono_arch_get_throw_exception_by_name (), "mono_arch_throw_exception_by_name", "void ptr", TRUE);
10998 #if MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION
10999         register_icall (mono_arch_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception",
11000                                  "void ptr", TRUE);
11001 #endif
11002         register_icall (mono_thread_get_pending_exception, "mono_thread_get_pending_exception", "object", FALSE);
11003         register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "void", FALSE);
11004         register_icall (mono_thread_force_interruption_checkpoint, "mono_thread_force_interruption_checkpoint", "void", FALSE);
11005         register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
11006         register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
11007
11008         /*
11009          * NOTE, NOTE, NOTE, NOTE:
11010          * when adding emulation for some opcodes, remember to also add a dummy
11011          * rule to the burg files, because we need the arity information to be correct.
11012          */
11013 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
11014         mono_register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, TRUE);
11015         mono_register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, FALSE);
11016         mono_register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, FALSE);
11017         mono_register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, FALSE);
11018         mono_register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, FALSE);
11019         mono_register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, FALSE);
11020         mono_register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, FALSE);
11021 #endif
11022
11023 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
11024         mono_register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, TRUE);
11025         mono_register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, TRUE);
11026         mono_register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, TRUE);
11027 #endif
11028
11029 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
11030         mono_register_opcode_emulation (CEE_DIV, "__emul_idiv", "int32 int32 int32", mono_idiv, TRUE);
11031         mono_register_opcode_emulation (CEE_DIV_UN, "__emul_idiv_un", "int32 int32 int32", mono_idiv_un, TRUE);
11032         mono_register_opcode_emulation (CEE_REM, "__emul_irem", "int32 int32 int32", mono_irem, TRUE);
11033         mono_register_opcode_emulation (CEE_REM_UN, "__emul_irem_un", "int32 int32 int32", mono_irem_un, TRUE);
11034 #endif
11035
11036 #ifdef MONO_ARCH_EMULATE_MUL_DIV
11037         mono_register_opcode_emulation (CEE_MUL_OVF, "__emul_imul_ovf", "int32 int32 int32", mono_imul_ovf, TRUE);
11038         mono_register_opcode_emulation (CEE_MUL_OVF_UN, "__emul_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, TRUE);
11039         mono_register_opcode_emulation (CEE_MUL, "__emul_imul", "int32 int32 int32", mono_imul, TRUE);
11040         mono_register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, TRUE);
11041 #endif
11042
11043         mono_register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, FALSE);
11044         mono_register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, FALSE);
11045         mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, FALSE);
11046         mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, FALSE);
11047
11048 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
11049         mono_register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, FALSE);
11050 #endif
11051 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
11052         mono_register_opcode_emulation (CEE_CONV_R_UN, "__emul_conv_r_un", "double int32", mono_conv_to_r8_un, FALSE);
11053 #endif
11054 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
11055         mono_register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, FALSE);
11056 #endif
11057 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
11058         mono_register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, FALSE);
11059 #endif
11060 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
11061         mono_register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, FALSE);
11062 #endif
11063 #ifdef MONO_ARCH_EMULATE_FREM
11064         mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, FALSE);
11065 #endif
11066
11067 #if SIZEOF_VOID_P == 4
11068         mono_register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, TRUE);
11069 #endif
11070
11071         /* other jit icalls */
11072         register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
11073         register_icall (mono_class_static_field_address , "mono_class_static_field_address",
11074                                  "ptr ptr ptr", FALSE);
11075         register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
11076         register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
11077         register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
11078         register_icall (mono_helper_stelem_ref, "helper_stelem_ref", "void ptr int32 object", FALSE);
11079         register_icall (mono_helper_stelem_ref_check, "helper_stelem_ref_check", "void object object", FALSE);
11080         register_icall (mono_object_new, "mono_object_new", "object ptr ptr", FALSE);
11081         register_icall (mono_object_new_specific, "mono_object_new_specific", "object ptr", FALSE);
11082         register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
11083         register_icall (mono_array_new_specific, "mono_array_new_specific", "object ptr int32", FALSE);
11084         register_icall (mono_runtime_class_init, "mono_runtime_class_init", "void ptr", FALSE);
11085         register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
11086         register_icall (mono_ldftn_nosync, "mono_ldftn_nosync", "ptr ptr", FALSE);
11087         register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
11088         register_icall (mono_helper_compile_generic_method, "compile_generic_method", "ptr object ptr ptr", FALSE);
11089         register_icall (mono_helper_ldstr, "helper_ldstr", "object ptr int", FALSE);
11090         register_icall (mono_helper_ldstr_mscorlib, "helper_ldstr_mscorlib", "object int", FALSE);
11091         register_icall (mono_helper_newobj_mscorlib, "helper_newobj_mscorlib", "object int", FALSE);
11092         register_icall (mono_value_copy, "mono_value_copy", "void ptr ptr ptr", FALSE);
11093 #endif
11094
11095 #define JIT_RUNTIME_WORKS
11096 #ifdef JIT_RUNTIME_WORKS
11097         mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
11098         mono_runtime_init (domain, mono_thread_start_cb, mono_thread_attach_cb);
11099 #endif
11100
11101         mono_thread_attach (domain);
11102         return domain;
11103 }
11104
11105 MonoJitStats mono_jit_stats = {0};
11106
11107 static void
11108 print_jit_stats (void)
11109 {
11110         if (mono_jit_stats.enabled) {
11111                 g_print ("Mono Jit statistics\n");
11112                 g_print ("Compiled methods:       %ld\n", mono_jit_stats.methods_compiled);
11113                 g_print ("Methods from AOT:       %ld\n", mono_jit_stats.methods_aot);
11114                 g_print ("Methods cache lookup:   %ld\n", mono_jit_stats.methods_lookups);
11115                 g_print ("Method trampolines:     %ld\n", mono_jit_stats.method_trampolines);
11116                 g_print ("Basic blocks:           %ld\n", mono_jit_stats.basic_blocks);
11117                 g_print ("Max basic blocks:       %ld\n", mono_jit_stats.max_basic_blocks);
11118                 g_print ("Allocated vars:         %ld\n", mono_jit_stats.allocate_var);
11119                 g_print ("Analyze stack repeat:   %ld\n", mono_jit_stats.analyze_stack_repeat);
11120                 g_print ("Compiled CIL code size: %ld\n", mono_jit_stats.cil_code_size);
11121                 g_print ("Native code size:       %ld\n", mono_jit_stats.native_code_size);
11122                 g_print ("Max code size ratio:    %.2f (%s::%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
11123                                 mono_jit_stats.max_ratio_method->klass->name, mono_jit_stats.max_ratio_method->name);
11124                 g_print ("Biggest method:         %ld (%s::%s)\n", mono_jit_stats.biggest_method_size,
11125                                 mono_jit_stats.biggest_method->klass->name, mono_jit_stats.biggest_method->name);
11126                 g_print ("Code reallocs:          %ld\n", mono_jit_stats.code_reallocs);
11127                 g_print ("Allocated code size:    %ld\n", mono_jit_stats.allocated_code_size);
11128                 g_print ("Inlineable methods:     %ld\n", mono_jit_stats.inlineable_methods);
11129                 g_print ("Inlined methods:        %ld\n", mono_jit_stats.inlined_methods);
11130
11131                 g_print ("\nCreated object count:   %ld\n", mono_stats.new_object_count);
11132                 g_print ("Initialized classes:    %ld\n", mono_stats.initialized_class_count);
11133                 g_print ("Used classes:           %ld\n", mono_stats.used_class_count);
11134                 g_print ("Static data size:       %ld\n", mono_stats.class_static_data_size);
11135                 g_print ("VTable data size:       %ld\n", mono_stats.class_vtable_size);
11136
11137                 g_print ("\nGeneric instances:      %ld\n", mono_stats.generic_instance_count);
11138                 g_print ("Initialized classes:    %ld\n", mono_stats.generic_class_count);
11139                 g_print ("Inflated methods:       %ld / %ld\n", mono_stats.inflated_method_count_2,
11140                          mono_stats.inflated_method_count);
11141                 g_print ("Inflated types:         %ld\n", mono_stats.inflated_type_count);
11142                 g_print ("Generics metadata size: %ld\n", mono_stats.generics_metadata_size);
11143
11144                 if (mono_use_security_manager) {
11145                         g_print ("\nDecl security check   : %ld\n", mono_jit_stats.cas_declsec_check);
11146                         g_print ("LinkDemand (user)     : %ld\n", mono_jit_stats.cas_linkdemand);
11147                         g_print ("LinkDemand (icall)    : %ld\n", mono_jit_stats.cas_linkdemand_icall);
11148                         g_print ("LinkDemand (pinvoke)  : %ld\n", mono_jit_stats.cas_linkdemand_pinvoke);
11149                         g_print ("LinkDemand (aptc)     : %ld\n", mono_jit_stats.cas_linkdemand_aptc);
11150                         g_print ("Demand (code gen)     : %ld\n", mono_jit_stats.cas_demand_generation);
11151                 }
11152                 if (debug_options.collect_pagefault_stats) {
11153                         g_print ("Metadata pagefaults   : %d\n", mono_raw_buffer_get_n_pagefaults ());
11154                         g_print ("AOT pagefaults        : %d\n", mono_aot_get_n_pagefaults ());
11155                 }
11156         }
11157 }
11158
11159 void
11160 mini_cleanup (MonoDomain *domain)
11161 {
11162 #ifdef HAVE_LINUX_RTC_H
11163         if (rtc_fd >= 0)
11164                 enable_rtc_timer (FALSE);
11165 #endif
11166
11167         /*
11168          * mono_runtime_cleanup() and mono_domain_finalize () need to
11169          * be called early since they need the execution engine still
11170          * fully working (mono_domain_finalize may invoke managed finalizers
11171          * and mono_runtime_cleanup will wait for other threads to finish).
11172          */
11173         mono_domain_finalize (domain, 2000);
11174
11175         /* This accesses metadata so needs to be called before runtime shutdown */
11176         print_jit_stats ();
11177
11178         mono_runtime_cleanup (domain);
11179
11180         mono_profiler_shutdown ();
11181
11182         mono_debug_cleanup ();
11183
11184         mono_icall_cleanup ();
11185
11186 #ifdef PLATFORM_WIN32
11187         win32_seh_cleanup();
11188 #endif
11189
11190         mono_domain_free (domain, TRUE);
11191
11192         mono_code_manager_destroy (global_codeman);
11193         g_hash_table_destroy (jit_icall_name_hash);
11194         if (class_init_hash_addr)
11195                 g_hash_table_destroy (class_init_hash_addr);
11196         g_free (emul_opcode_map);
11197
11198         mono_cleanup ();
11199
11200         mono_trace_cleanup ();
11201
11202         mono_counters_dump (-1, stdout);
11203
11204         TlsFree(mono_jit_tls_id);
11205
11206         DeleteCriticalSection (&jit_mutex);
11207
11208         DeleteCriticalSection (&mono_delegate_section);
11209 }
11210
11211 void
11212 mono_set_defaults (int verbose_level, guint32 opts)
11213 {
11214         mini_verbose = verbose_level;
11215         default_opt = opts;
11216         default_opt_set = TRUE;
11217 }
11218
11219 static void
11220 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
11221 {
11222         GHashTable *assemblies = (GHashTable*)user_data;
11223         MonoImage *image = mono_assembly_get_image (ass);
11224         MonoMethod *method, *invoke;
11225         int i, count = 0;
11226
11227         if (g_hash_table_lookup (assemblies, ass))
11228                 return;
11229
11230         g_hash_table_insert (assemblies, ass, ass);
11231
11232         if (mini_verbose > 0)
11233                 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
11234
11235         for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
11236                 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
11237                 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
11238                         continue;
11239
11240                 count++;
11241                 if (mini_verbose > 1) {
11242                         char * desc = mono_method_full_name (method, TRUE);
11243                         g_print ("Compiling %d %s\n", count, desc);
11244                         g_free (desc);
11245                 }
11246                 mono_compile_method (method);
11247                 if (strcmp (method->name, "Finalize") == 0) {
11248                         invoke = mono_marshal_get_runtime_invoke (method);
11249                         mono_compile_method (invoke);
11250                 }
11251                 if (method->klass->marshalbyref && mono_method_signature (method)->hasthis) {
11252                         invoke = mono_marshal_get_remoting_invoke_with_check (method);
11253                         mono_compile_method (invoke);
11254                 }
11255         }
11256
11257         /* Load and precompile referenced assemblies as well */
11258         for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
11259                 mono_assembly_load_reference (image, i);
11260                 if (image->references [i])
11261                         mono_precompile_assembly (image->references [i], assemblies);
11262         }
11263 }
11264
11265 void mono_precompile_assemblies ()
11266 {
11267         GHashTable *assemblies = g_hash_table_new (NULL, NULL);
11268
11269         mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
11270
11271         g_hash_table_destroy (assemblies);
11272 }