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 sun    // Solaris x86
  18 #include <sys/types.h>
  19 #include <sys/ucontext.h>
  20 #endif
  21
  22 #ifdef HAVE_VALGRIND_MEMCHECK_H
  23 #include <valgrind/memcheck.h>
  24 #endif
  25
  26 #include <mono/metadata/assembly.h>
  27 #include <mono/metadata/loader.h>
  28 #include <mono/metadata/cil-coff.h>
  29 #include <mono/metadata/tabledefs.h>
  30 #include <mono/metadata/class.h>
  31 #include <mono/metadata/object.h>
  32 #include <mono/metadata/exception.h>
  33 #include <mono/metadata/opcodes.h>
  34 #include <mono/metadata/mono-endian.h>
  35 #include <mono/metadata/tokentype.h>
  36 #include <mono/metadata/tabledefs.h>
  37 #include <mono/metadata/threads.h>
  38 #include <mono/metadata/marshal.h>
  39 #include <mono/metadata/socket-io.h>
  40 #include <mono/metadata/appdomain.h>
  41 #include <mono/metadata/debug-helpers.h>
  42 #include <mono/io-layer/io-layer.h>
  43 #include "mono/metadata/profiler.h"
  44 #include <mono/metadata/profiler-private.h>
  45 #include <mono/metadata/mono-config.h>
  46 #include <mono/metadata/environment.h>
  47 #include <mono/metadata/mono-debug.h>
  48 #include <mono/metadata/mono-debug-debugger.h>
  49 #include <mono/metadata/monitor.h>
  50 #include <mono/metadata/security-manager.h>
  51 #include <mono/metadata/threads-types.h>
  52 #include <mono/utils/mono-math.h>
  53 #include <mono/utils/mono-compiler.h>
  54 #include <mono/os/gc_wrapper.h>
  55
  56 #include "mini.h"
  57 #include <string.h>
  58 #include <ctype.h>
  59 #include "inssel.h"
  60 #include "trace.h"
  61
  62 #include "jit-icalls.c"
  63
  64 /*
  65  * this is used to determine when some branch optimizations are possible: we exclude FP compares
  66  * because they have weird semantics with NaNs.
  67  */
  68 #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))
  69 #define MONO_IS_COND_BRANCH_NOFP(ins) (MONO_IS_COND_BRANCH_OP(ins) && (ins)->inst_left->inst_left->type != STACK_R8)
  70
  71 #define MONO_CHECK_THIS(ins) (mono_method_signature (cfg->method)->hasthis && (ins)->ssa_op == MONO_SSA_LOAD && (ins)->inst_left->inst_c0 == 0)
  72
  73 static void setup_stat_profiler (void);
  74 gboolean  mono_arch_print_tree(MonoInst *tree, int arity);
  75 static gpointer mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt);
  76 static gpointer mono_jit_compile_method (MonoMethod *method);
  77 static gpointer mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method);
  78
  79 static void handle_stobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, MonoInst *src,
  80                           const unsigned char *ip, MonoClass *klass, gboolean to_end, gboolean native);
  81
  82 static void dec_foreach (MonoInst *tree, MonoCompile *cfg);
  83
  84 static int mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
  85                    int locals_offset, MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
  86                    guint inline_offset, gboolean is_virtual_call);
  87
  88 extern guint8 mono_burg_arity [];
  89 /* helper methods signature */
  90 static MonoMethodSignature *helper_sig_class_init_trampoline = NULL;
  91 static MonoMethodSignature *helper_sig_domain_get = NULL;
  92
  93 static guint32 default_opt = 0;
  94
  95 guint32 mono_jit_tls_id = -1;
  96 MonoTraceSpec *mono_jit_trace_calls = NULL;
  97 gboolean mono_break_on_exc = FALSE;
  98 #ifndef DISABLE_AOT
  99 gboolean mono_compile_aot = FALSE;
 100 #endif
 101 gboolean mono_use_security_manager = FALSE;
 102
 103 static int mini_verbose = 0;
 104
 105 static CRITICAL_SECTION jit_mutex;
 106
 107 static GHashTable *class_init_hash_addr = NULL;
 108
 109 static MonoCodeManager *global_codeman = NULL;
 110
 111 static GHashTable *jit_icall_name_hash = NULL;
 112
 113 static MonoDebugOptions debug_options;
 114
 115 /*
 116  * Address of the trampoline code.  This is used by the debugger to check
 117  * whether a method is a trampoline.
 118  */
 119 guint8* mono_trampoline_code [MONO_TRAMPOLINE_NUM];
 120
 121 gboolean
 122 mono_running_on_valgrind (void)
 123 {
 124 #ifdef HAVE_VALGRIND_MEMCHECK_H
 125                 if (RUNNING_ON_VALGRIND)
 126                         return TRUE;
 127                 else
 128                         return FALSE;
 129 #else
 130                 return FALSE;
 131 #endif
 132 }
 133
 134 /*
 135  * mono_create_ftnptr:
 136  *
 137  *   Given a function address, create a function descriptor for it.
 138  * This is only needed on IA64.
 139  */
 140 gpointer
 141 mono_create_ftnptr (MonoDomain *domain, gpointer addr)
 142 {
 143 #ifdef __ia64__
 144         gpointer *desc;
 145
 146         mono_domain_lock (domain);
 147         desc = mono_code_manager_reserve (domain->code_mp, 2 * sizeof (gpointer));
 148         mono_domain_unlock (domain);
 149
 150         desc [0] = addr;
 151         desc [1] = NULL;
 152
 153         return desc;
 154 #else
 155         return addr;
 156 #endif
 157 }
 158
 159 /* debug function */
 160 G_GNUC_UNUSED static char*
 161 get_method_from_ip (void *ip)
 162 {
 163         MonoJitInfo *ji;
 164         char *method;
 165         char *source;
 166         char *res;
 167         MonoDomain *domain = mono_domain_get ();
 168
 169         ji = mono_jit_info_table_find (domain, ip);
 170         if (!ji) {
 171                 return NULL;
 172         }
 173         method = mono_method_full_name (ji->method, TRUE);
 174         source = mono_debug_source_location_from_address (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), NULL, domain);
 175
 176         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);
 177
 178         g_free (source);
 179         g_free (method);
 180
 181         return res;
 182 }
 183
 184 /* debug function */
 185 G_GNUC_UNUSED static void
 186 print_method_from_ip (void *ip)
 187 {
 188         MonoJitInfo *ji;
 189         char *method;
 190         char *source;
 191         MonoDomain *domain = mono_domain_get ();
 192
 193         ji = mono_jit_info_table_find (domain, ip);
 194         if (!ji) {
 195                 g_print ("No method at %p\n", ip);
 196                 return;
 197         }
 198         method = mono_method_full_name (ji->method, TRUE);
 199         source = mono_debug_source_location_from_address (ji->method, (guint32)((guint8*)ip - (guint8*)ji->code_start), NULL, domain);
 200
 201         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);
 202
 203         if (source)
 204                 g_print ("%s\n", source);
 205
 206         g_free (source);
 207         g_free (method);
 208 }
 209
 210 G_GNUC_UNUSED void
 211 mono_print_method_from_ip (void *ip)
 212 {
 213         print_method_from_ip (ip);
 214 }
 215
 216 /*
 217  * mono_method_same_domain:
 218  *
 219  * Determine whenever two compiled methods are in the same domain, thus
 220  * the address of the callee can be embedded in the caller.
 221  */
 222 gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee)
 223 {
 224         if (!caller || !callee)
 225                 return FALSE;
 226
 227         /*
 228          * If the call was made from domain-neutral to domain-specific
 229          * code, we can't patch the call site.
 230          */
 231         if (caller->domain_neutral && !callee->domain_neutral)
 232                 return FALSE;
 233
 234         if ((caller->method->klass == mono_defaults.appdomain_class) &&
 235                 (strstr (caller->method->name, "InvokeInDomain"))) {
 236                  /* The InvokeInDomain methods change the current appdomain */
 237                 return FALSE;
 238         }
 239
 240         return TRUE;
 241 }
 242
 243 /*
 244  * mono_global_codeman_reserve:
 245  *
 246  *  Allocate code memory from the global code manager.
 247  */
 248 void *mono_global_codeman_reserve (int size)
 249 {
 250         void *ptr;
 251
 252         if (!global_codeman) {
 253                 /* This can happen during startup */
 254                 global_codeman = mono_code_manager_new ();
 255                 return mono_code_manager_reserve (global_codeman, size);
 256         }
 257         else {
 258                 EnterCriticalSection (&jit_mutex);
 259                 ptr = mono_code_manager_reserve (global_codeman, size);
 260                 LeaveCriticalSection (&jit_mutex);
 261                 return ptr;
 262         }
 263 }
 264
 265 MonoJumpInfoToken *
 266 mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token)
 267 {
 268         MonoJumpInfoToken *res = mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoToken));
 269         res->image = image;
 270         res->token = token;
 271
 272         return res;
 273 }
 274
 275 #define MONO_INIT_VARINFO(vi,id) do { \
 276         (vi)->range.first_use.pos.bid = 0xffff; \
 277         (vi)->reg = -1; \
 278         (vi)->idx = (id); \
 279 } while (0)
 280
 281 /*
 282  * Basic blocks have two numeric identifiers:
 283  * dfn: Depth First Number
 284  * block_num: unique ID assigned at bblock creation
 285  */
 286 #define NEW_BBLOCK(cfg) (mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoBasicBlock)))
 287 #define ADD_BBLOCK(cfg,bbhash,b) do {   \
 288                 g_hash_table_insert (bbhash, (b)->cil_code, (b));       \
 289                 (b)->block_num = cfg->num_bblocks++;    \
 290                 (b)->real_offset = real_offset; \
 291         } while (0)
 292
 293 #define GET_BBLOCK(cfg,bbhash,tblock,ip) do {   \
 294                 (tblock) = g_hash_table_lookup (bbhash, (ip));  \
 295                 if (!(tblock)) {        \
 296                         if ((ip) >= end || (ip) < header->code) goto unverified; \
 297                         (tblock) = NEW_BBLOCK (cfg);    \
 298                         (tblock)->cil_code = (ip);      \
 299                         ADD_BBLOCK (cfg, (bbhash), (tblock));   \
 300                 } \
 301         } while (0)
 302
 303 #define CHECK_BBLOCK(target,ip,tblock) do {     \
 304                 if ((target) < (ip) && !(tblock)->code) {       \
 305                         bb_recheck = g_list_prepend (bb_recheck, (tblock));     \
 306                         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));     \
 307                 }       \
 308         } while (0)
 309
 310 #define NEW_ICONST(cfg,dest,val) do {   \
 311                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 312                 (dest)->opcode = OP_ICONST;     \
 313                 (dest)->inst_c0 = (val);        \
 314                 (dest)->type = STACK_I4;        \
 315         } while (0)
 316
 317 #define NEW_PCONST(cfg,dest,val) do {   \
 318                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 319                 (dest)->opcode = OP_PCONST;     \
 320                 (dest)->inst_p0 = (val);        \
 321                 (dest)->type = STACK_PTR;       \
 322         } while (0)
 323
 324
 325 #ifdef MONO_ARCH_NEED_GOT_VAR
 326
 327 #define NEW_PATCH_INFO(cfg,dest,el1,el2) do {   \
 328                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 329                 (dest)->opcode = OP_PATCH_INFO; \
 330                 (dest)->inst_left = (gpointer)(el1);    \
 331                 (dest)->inst_right = (gpointer)(el2);   \
 332         } while (0)
 333
 334 #define NEW_AOTCONST(cfg,dest,patch_type,cons) do {                     \
 335                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst)); \
 336                 (dest)->opcode = cfg->compile_aot ? OP_GOT_ENTRY : OP_PCONST; \
 337                 if (cfg->compile_aot) {                                 \
 338                         MonoInst *group, *got_var, *got_loc;            \
 339                         got_loc = mono_get_got_var (cfg);               \
 340                         NEW_TEMPLOAD ((cfg), got_var, got_loc->inst_c0); \
 341                         NEW_PATCH_INFO ((cfg), group, cons, patch_type); \
 342                         (dest)->inst_p0 = got_var;                      \
 343                         (dest)->inst_p1 = group;                        \
 344                 } else {                                                \
 345                         (dest)->inst_p0 = (cons);                       \
 346                         (dest)->inst_i1 = (gpointer)(patch_type);       \
 347                 }                                                       \
 348                 (dest)->type = STACK_PTR;                               \
 349         } while (0)
 350
 351 #define NEW_AOTCONST_TOKEN(cfg,dest,patch_type,image,token,stack_type) do { \
 352                 MonoInst *group, *got_var, *got_loc;                    \
 353                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst)); \
 354                 (dest)->opcode = OP_GOT_ENTRY;                          \
 355                 got_loc = mono_get_got_var (cfg);                       \
 356                 NEW_TEMPLOAD ((cfg), got_var, got_loc->inst_c0);        \
 357                 NEW_PATCH_INFO ((cfg), group, NULL, patch_type);        \
 358                 group->inst_p0 = mono_jump_info_token_new ((cfg)->mempool, (image), (token)); \
 359                 (dest)->inst_p0 = got_var;                              \
 360                 (dest)->inst_p1 = group;                                \
 361                 (dest)->type = (stack_type);                            \
 362         } while (0)
 363
 364 #else
 365
 366 #define NEW_AOTCONST(cfg,dest,patch_type,cons) do {    \
 367                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 368                 (dest)->opcode = cfg->compile_aot ? OP_AOTCONST : OP_PCONST;    \
 369                 (dest)->inst_p0 = (cons);       \
 370                 (dest)->inst_i1 = (gpointer)(patch_type); \
 371                 (dest)->type = STACK_PTR;       \
 372     } while (0)
 373
 374 #define NEW_AOTCONST_TOKEN(cfg,dest,patch_type,image,token,stack_type) do {    \
 375                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 376                 (dest)->opcode = OP_AOTCONST;   \
 377                 (dest)->inst_p0 = mono_jump_info_token_new ((cfg)->mempool, (image), (token));  \
 378                 (dest)->inst_p1 = (gpointer)(patch_type); \
 379                 (dest)->type = (stack_type);    \
 380     } while (0)
 381
 382 #endif
 383
 384 #define NEW_CLASSCONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_CLASS, (val))
 385
 386 #define NEW_IMAGECONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_IMAGE, (val))
 387
 388 #define NEW_FIELDCONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_FIELD, (val))
 389
 390 #define NEW_METHODCONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_METHODCONST, (val))
 391
 392 #define NEW_VTABLECONST(cfg,dest,vtable) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_VTABLE, cfg->compile_aot ? (gpointer)((vtable)->klass) : (vtable))
 393
 394 #define NEW_SFLDACONST(cfg,dest,val) NEW_AOTCONST ((cfg), (dest), MONO_PATCH_INFO_SFLDA, (val))
 395
 396 #define NEW_LDSTRCONST(cfg,dest,image,token) NEW_AOTCONST_TOKEN ((cfg), (dest), MONO_PATCH_INFO_LDSTR, (image), (token), STACK_OBJ)
 397
 398 #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)
 399
 400 #define NEW_LDTOKENCONST(cfg,dest,image,token) NEW_AOTCONST_TOKEN ((cfg), (dest), MONO_PATCH_INFO_LDTOKEN, (image), (token), STACK_PTR)
 401
 402 #define NEW_DECLSECCONST(cfg,dest,image,entry) do { \
 403                 if (cfg->compile_aot) { \
 404                         NEW_AOTCONST_TOKEN (cfg, dest, MONO_PATCH_INFO_DECLSEC, image, (entry).index, STACK_OBJ); \
 405                 } else { \
 406                         NEW_PCONST (cfg, args [0], (entry).blob); \
 407                 } \
 408         } while (0)
 409
 410 #define NEW_DOMAINCONST(cfg,dest) do { \
 411                 if (cfg->opt & MONO_OPT_SHARED) { \
 412                         /* avoid depending on undefined C behavior in sequence points */ \
 413                         MonoInst* __domain_var = mono_get_domainvar (cfg); \
 414                         NEW_TEMPLOAD (cfg, dest, __domain_var->inst_c0); \
 415                 } else { \
 416                         NEW_PCONST (cfg, dest, (cfg)->domain); \
 417                 } \
 418         } while (0)
 419
 420 #define GET_VARINFO_INST(cfg,num) ((cfg)->varinfo [(num)]->inst)
 421
 422 #define NEW_ARGLOAD(cfg,dest,num) do {  \
 423                 if (arg_array [(num)]->opcode == OP_ICONST) (dest) = arg_array [(num)]; else { \
 424                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 425                 (dest)->ssa_op = MONO_SSA_LOAD; \
 426                 (dest)->inst_i0 = arg_array [(num)];    \
 427                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 428                 type_to_eval_stack_type (param_types [(num)], (dest));  \
 429                 (dest)->klass = (dest)->inst_i0->klass; \
 430         }} while (0)
 431
 432 #define NEW_LOCLOAD(cfg,dest,num) do {  \
 433                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 434                 (dest)->ssa_op = MONO_SSA_LOAD; \
 435                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 436                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 437                 type_to_eval_stack_type (header->locals [(num)], (dest));       \
 438                 (dest)->klass = (dest)->inst_i0->klass; \
 439         } while (0)
 440
 441 #define NEW_LOCLOADA(cfg,dest,num) do { \
 442                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 443                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 444                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 445                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 446                 (dest)->opcode = OP_LDADDR;     \
 447                 (dest)->type = STACK_MP;        \
 448                 (dest)->klass = (dest)->inst_i0->klass; \
 449         if (!MONO_TYPE_ISSTRUCT (header->locals [(num)])) \
 450            (cfg)->disable_ssa = TRUE; \
 451         } while (0)
 452
 453 #define NEW_RETLOADA(cfg,dest) do {     \
 454                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 455                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 456                 (dest)->inst_i0 = (cfg)->ret;   \
 457                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 458                 (dest)->opcode = cfg->ret_var_is_local ? OP_LDADDR : CEE_LDIND_I;       \
 459                 (dest)->type = STACK_MP;        \
 460                 (dest)->klass = (dest)->inst_i0->klass; \
 461                 (cfg)->disable_ssa = TRUE; \
 462         } while (0)
 463
 464 #define NEW_ARGLOADA(cfg,dest,num) do { \
 465                 if (arg_array [(num)]->opcode == OP_ICONST) goto inline_failure; \
 466                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 467                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 468                 (dest)->inst_i0 = arg_array [(num)];    \
 469                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 470                 (dest)->opcode = OP_LDADDR;     \
 471                 (dest)->type = STACK_MP;        \
 472                 (dest)->klass = (dest)->inst_i0->klass; \
 473                 (cfg)->disable_ssa = TRUE; \
 474         } while (0)
 475
 476 #define NEW_TEMPLOAD(cfg,dest,num) do { \
 477                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 478                 (dest)->ssa_op = MONO_SSA_LOAD; \
 479                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 480                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 481                 type_to_eval_stack_type ((dest)->inst_i0->inst_vtype, (dest));  \
 482                 (dest)->klass = (dest)->inst_i0->klass; \
 483         } while (0)
 484
 485 #define NEW_TEMPLOADA(cfg,dest,num) do {        \
 486                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 487                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 488                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 489                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 490                 (dest)->opcode = OP_LDADDR;     \
 491                 (dest)->type = STACK_MP;        \
 492                 (dest)->klass = (dest)->inst_i0->klass; \
 493         if (!MONO_TYPE_ISSTRUCT (cfg->varinfo [(num)]->inst_vtype)) \
 494            (cfg)->disable_ssa = TRUE; \
 495         } while (0)
 496
 497
 498 #define NEW_INDLOAD(cfg,dest,addr,vtype) do {   \
 499                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 500                 (dest)->inst_left = addr;       \
 501                 (dest)->opcode = mono_type_to_ldind (vtype);    \
 502                 type_to_eval_stack_type (vtype, (dest));        \
 503                 /* FIXME: (dest)->klass = (dest)->inst_i0->klass;*/     \
 504         } while (0)
 505
 506 #define NEW_INDSTORE(cfg,dest,addr,value,vtype) do {    \
 507                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 508                 (dest)->inst_i0 = addr; \
 509                 (dest)->opcode = mono_type_to_stind (vtype);    \
 510                 (dest)->inst_i1 = (value);      \
 511                 /* FIXME: (dest)->klass = (dest)->inst_i0->klass;*/     \
 512         } while (0)
 513
 514 #define NEW_TEMPSTORE(cfg,dest,num,inst) do {   \
 515                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 516                 (dest)->ssa_op = MONO_SSA_STORE;        \
 517                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 518                 (dest)->opcode = mono_type_to_stind ((dest)->inst_i0->inst_vtype);      \
 519                 (dest)->inst_i1 = (inst);       \
 520                 (dest)->klass = (dest)->inst_i0->klass; \
 521         } while (0)
 522
 523 #define NEW_LOCSTORE(cfg,dest,num,inst) do {    \
 524                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 525                 (dest)->opcode = mono_type_to_stind (header->locals [(num)]);   \
 526                 (dest)->ssa_op = MONO_SSA_STORE;        \
 527                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 528                 (dest)->inst_i1 = (inst);       \
 529                 (dest)->klass = (dest)->inst_i0->klass; \
 530         } while (0)
 531
 532 #define NEW_ARGSTORE(cfg,dest,num,inst) do {    \
 533                 if (arg_array [(num)]->opcode == OP_ICONST) goto inline_failure; \
 534                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 535                 (dest)->opcode = mono_type_to_stind (param_types [(num)]);      \
 536                 (dest)->ssa_op = MONO_SSA_STORE;        \
 537                 (dest)->inst_i0 = arg_array [(num)];    \
 538                 (dest)->inst_i1 = (inst);       \
 539                 (dest)->klass = (dest)->inst_i0->klass; \
 540         } while (0)
 541
 542 #define NEW_DUMMY_USE(cfg,dest,load) do { \
 543                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 544                 (dest)->opcode = OP_DUMMY_USE; \
 545                 (dest)->inst_left = (load); \
 546     } while (0)
 547
 548 #define NEW_DUMMY_STORE(cfg,dest,num) do { \
 549                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 550                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 551                 (dest)->opcode = OP_DUMMY_STORE; \
 552                 (dest)->klass = (dest)->inst_i0->klass; \
 553         } while (0)
 554
 555 #define ADD_BINOP(op) do {      \
 556                 MONO_INST_NEW (cfg, ins, (op)); \
 557                 ins->cil_code = ip;     \
 558                 sp -= 2;        \
 559                 ins->inst_i0 = sp [0];  \
 560                 ins->inst_i1 = sp [1];  \
 561                 *sp++ = ins;    \
 562                 type_from_op (ins);     \
 563                 CHECK_TYPE (ins);       \
 564         } while (0)
 565
 566 #define ADD_UNOP(op) do {       \
 567                 MONO_INST_NEW (cfg, ins, (op)); \
 568                 ins->cil_code = ip;     \
 569                 sp--;   \
 570                 ins->inst_i0 = sp [0];  \
 571                 *sp++ = ins;    \
 572                 type_from_op (ins);     \
 573                 CHECK_TYPE (ins);       \
 574         } while (0)
 575
 576 #define ADD_BINCOND(next_block) do {    \
 577                 MonoInst *cmp;  \
 578                 sp -= 2;                \
 579                 MONO_INST_NEW(cfg, cmp, OP_COMPARE);    \
 580                 cmp->inst_i0 = sp [0];  \
 581                 cmp->inst_i1 = sp [1];  \
 582                 cmp->cil_code = ins->cil_code;  \
 583                 type_from_op (cmp);     \
 584                 CHECK_TYPE (cmp);       \
 585                 ins->inst_i0 = cmp;     \
 586                 MONO_ADD_INS (bblock, ins);     \
 587                 ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2);      \
 588                 GET_BBLOCK (cfg, bbhash, tblock, target);               \
 589                 link_bblock (cfg, bblock, tblock);      \
 590                 ins->inst_true_bb = tblock;     \
 591                 CHECK_BBLOCK (target, ip, tblock);      \
 592                 if ((next_block)) {     \
 593                         link_bblock (cfg, bblock, (next_block));        \
 594                         ins->inst_false_bb = (next_block);      \
 595                         start_new_bblock = 1;   \
 596                 } else {        \
 597                         GET_BBLOCK (cfg, bbhash, tblock, ip);           \
 598                         link_bblock (cfg, bblock, tblock);      \
 599                         ins->inst_false_bb = tblock;    \
 600                         start_new_bblock = 2;   \
 601                 }       \
 602         } while (0)
 603
 604 /* FIXME: handle float, long ... */
 605 #define ADD_UNCOND(istrue) do { \
 606                 MonoInst *cmp;  \
 607                 sp--;           \
 608                 MONO_INST_NEW(cfg, cmp, OP_COMPARE);    \
 609                 cmp->inst_i0 = sp [0];  \
 610                 switch (cmp->inst_i0->type) { \
 611                 case STACK_I8: \
 612                         cmp->inst_i1 = zero_int64; break; \
 613                 case STACK_R8: \
 614                         cmp->inst_i1 = zero_r8; break; \
 615                 case STACK_PTR: \
 616                 case STACK_MP: \
 617                         cmp->inst_i1 = zero_ptr; break; \
 618                 case STACK_OBJ: \
 619                         cmp->inst_i1 = zero_obj; break; \
 620                 default: \
 621                         cmp->inst_i1 = zero_int32;  \
 622                 }  \
 623                 cmp->cil_code = ins->cil_code;  \
 624                 type_from_op (cmp);     \
 625                 CHECK_TYPE (cmp);       \
 626                 ins->inst_i0 = cmp;     \
 627                 ins->opcode = (istrue)? CEE_BNE_UN: CEE_BEQ;    \
 628                 MONO_ADD_INS (bblock, ins);     \
 629                 ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2);      \
 630                 GET_BBLOCK (cfg, bbhash, tblock, target);               \
 631                 link_bblock (cfg, bblock, tblock);      \
 632                 ins->inst_true_bb = tblock;     \
 633                 CHECK_BBLOCK (target, ip, tblock);      \
 634                 GET_BBLOCK (cfg, bbhash, tblock, ip);           \
 635                 link_bblock (cfg, bblock, tblock);      \
 636                 ins->inst_false_bb = tblock;    \
 637                 start_new_bblock = 2;   \
 638         } while (0)
 639
 640 #define NEW_LDELEMA(cfg,dest,sp,k) do { \
 641                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 642                 (dest)->opcode = CEE_LDELEMA;   \
 643                 (dest)->inst_left = (sp) [0];   \
 644                 (dest)->inst_right = (sp) [1];  \
 645                 (dest)->type = STACK_MP;        \
 646                 (dest)->klass = (k);    \
 647                 (cfg)->flags |= MONO_CFG_HAS_LDELEMA; \
 648         } while (0)
 649
 650 #define NEW_GROUP(cfg,dest,el1,el2) do {        \
 651                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 652                 (dest)->opcode = OP_GROUP;      \
 653                 (dest)->inst_left = (el1);      \
 654                 (dest)->inst_right = (el2);     \
 655         } while (0)
 656
 657 #if 0
 658 static gint
 659 compare_bblock (gconstpointer a, gconstpointer b)
 660 {
 661         const MonoBasicBlock *b1 = a;
 662         const MonoBasicBlock *b2 = b;
 663
 664         return b2->cil_code - b1->cil_code;
 665 }
 666 #endif
 667
 668 /* *
 669  * link_bblock: Links two basic blocks
 670  *
 671  * links two basic blocks in the control flow graph, the 'from'
 672  * argument is the starting block and the 'to' argument is the block
 673  * the control flow ends to after 'from'.
 674  */
 675 static void
 676 link_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
 677 {
 678         MonoBasicBlock **newa;
 679         int i, found;
 680
 681 #if 0
 682         if (from->cil_code) {
 683                 if (to->cil_code)
 684                         g_print ("edge from IL%04x to IL_%04x\n", from->cil_code - cfg->cil_code, to->cil_code - cfg->cil_code);
 685                 else
 686                         g_print ("edge from IL%04x to exit\n", from->cil_code - cfg->cil_code);
 687         } else {
 688                 if (to->cil_code)
 689                         g_print ("edge from entry to IL_%04x\n", to->cil_code - cfg->cil_code);
 690                 else
 691                         g_print ("edge from entry to exit\n");
 692         }
 693 #endif
 694         found = FALSE;
 695         for (i = 0; i < from->out_count; ++i) {
 696                 if (to == from->out_bb [i]) {
 697                         found = TRUE;
 698                         break;
 699                 }
 700         }
 701         if (!found) {
 702                 newa = mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (from->out_count + 1));
 703                 for (i = 0; i < from->out_count; ++i) {
 704                         newa [i] = from->out_bb [i];
 705                 }
 706                 newa [i] = to;
 707                 from->out_count++;
 708                 from->out_bb = newa;
 709         }
 710
 711         found = FALSE;
 712         for (i = 0; i < to->in_count; ++i) {
 713                 if (from == to->in_bb [i]) {
 714                         found = TRUE;
 715                         break;
 716                 }
 717         }
 718         if (!found) {
 719                 newa = mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (to->in_count + 1));
 720                 for (i = 0; i < to->in_count; ++i) {
 721                         newa [i] = to->in_bb [i];
 722                 }
 723                 newa [i] = from;
 724                 to->in_count++;
 725                 to->in_bb = newa;
 726         }
 727 }
 728
 729 /**
 730  * mono_find_block_region:
 731  *
 732  *   We mark each basic block with a region ID. We use that to avoid BB
 733  *   optimizations when blocks are in different regions.
 734  *
 735  * Returns:
 736  *   A region token that encodes where this region is, and information
 737  *   about the clause owner for this block.
 738  *
 739  *   The region encodes the try/catch/filter clause that owns this block
 740  *   as well as the type.  -1 is a special value that represents a block
 741  *   that is in none of try/catch/filter.
 742  */
 743 static int
 744 mono_find_block_region (MonoCompile *cfg, int offset)
 745 {
 746         MonoMethod *method = cfg->method;
 747         MonoMethodHeader *header = mono_method_get_header (method);
 748         MonoExceptionClause *clause;
 749         int i;
 750
 751         /* first search for handlers and filters */
 752         for (i = 0; i < header->num_clauses; ++i) {
 753                 clause = &header->clauses [i];
 754                 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
 755                     (offset < (clause->handler_offset)))
 756                         return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
 757
 758                 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
 759                         if (clause->flags & MONO_EXCEPTION_CLAUSE_FINALLY)
 760                                 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
 761                         else
 762                                 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
 763                 }
 764         }
 765
 766         /* search the try blocks */
 767         for (i = 0; i < header->num_clauses; ++i) {
 768                 clause = &header->clauses [i];
 769                 if (MONO_OFFSET_IN_CLAUSE (clause, offset))
 770                         return ((i + 1) << 8) | clause->flags;
 771         }
 772
 773         return -1;
 774 }
 775
 776 static GList*
 777 mono_find_final_block (MonoCompile *cfg, unsigned char *ip, unsigned char *target, int type)
 778 {
 779         MonoMethod *method = cfg->method;
 780         MonoMethodHeader *header = mono_method_get_header (method);
 781         MonoExceptionClause *clause;
 782         MonoBasicBlock *handler;
 783         int i;
 784         GList *res = NULL;
 785
 786         for (i = 0; i < header->num_clauses; ++i) {
 787                 clause = &header->clauses [i];
 788                 if (MONO_OFFSET_IN_CLAUSE (clause, (ip - header->code)) &&
 789                     (!MONO_OFFSET_IN_CLAUSE (clause, (target - header->code)))) {
 790                         if (clause->flags == type) {
 791                                 handler = g_hash_table_lookup (cfg->bb_hash, header->code + clause->handler_offset);
 792                                 g_assert (handler);
 793                                 res = g_list_append (res, handler);
 794                         }
 795                 }
 796         }
 797         return res;
 798 }
 799
 800 MonoInst *
 801 mono_find_spvar_for_region (MonoCompile *cfg, int region)
 802 {
 803         return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
 804 }
 805
 806 static void
 807 mono_create_spvar_for_region (MonoCompile *cfg, int region)
 808 {
 809         MonoInst *var;
 810
 811         var = g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
 812         if (var)
 813                 return;
 814
 815         var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
 816         /* prevent it from being register allocated */
 817         var->flags |= MONO_INST_INDIRECT;
 818
 819         g_hash_table_insert (cfg->spvars, GINT_TO_POINTER (region), var);
 820 }
 821
 822 static MonoInst *
 823 mono_find_exvar_for_offset (MonoCompile *cfg, int offset)
 824 {
 825         return g_hash_table_lookup (cfg->exvars, GINT_TO_POINTER (offset));
 826 }
 827
 828 static MonoInst*
 829 mono_create_exvar_for_offset (MonoCompile *cfg, int offset)
 830 {
 831         MonoInst *var;
 832
 833         var = g_hash_table_lookup (cfg->exvars, GINT_TO_POINTER (offset));
 834         if (var)
 835                 return var;
 836
 837         var = mono_compile_create_var (cfg, &mono_defaults.object_class->byval_arg, OP_LOCAL);
 838         /* prevent it from being register allocated */
 839         var->flags |= MONO_INST_INDIRECT;
 840
 841         g_hash_table_insert (cfg->exvars, GINT_TO_POINTER (offset), var);
 842
 843         return var;
 844 }
 845
 846 static void
 847 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
 848 {
 849         int i;
 850
 851         array [*dfn] = start;
 852         /*g_print ("visit %d at %p\n", *dfn, start->cil_code);*/
 853         for (i = 0; i < start->out_count; ++i) {
 854                 if (start->out_bb [i]->dfn)
 855                         continue;
 856                 (*dfn)++;
 857                 start->out_bb [i]->dfn = *dfn;
 858                 start->out_bb [i]->df_parent = start;
 859                 array [*dfn] = start->out_bb [i];
 860                 df_visit (start->out_bb [i], dfn, array);
 861         }
 862 }
 863
 864 typedef struct {
 865         const guchar *code;
 866         MonoBasicBlock *best;
 867 } PrevStruct;
 868
 869 static void
 870 previous_foreach (gconstpointer key, gpointer val, gpointer data)
 871 {
 872         PrevStruct *p = data;
 873         MonoBasicBlock *bb = val;
 874         //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,
 875         //bb->method == p->best->method, bb->cil_code < p->code, bb->cil_code > p->best->cil_code);
 876
 877         if (bb->cil_code && bb->cil_code < p->code && bb->cil_code > p->best->cil_code)
 878                 p->best = bb;
 879 }
 880
 881 static MonoBasicBlock*
 882 find_previous (GHashTable *bb_hash, MonoBasicBlock *start, const guchar *code) {
 883         PrevStruct p;
 884
 885         p.code = code;
 886         p.best = start;
 887
 888         g_hash_table_foreach (bb_hash, (GHFunc)previous_foreach, &p);
 889         return p.best;
 890 }
 891
 892 static void
 893 split_bblock (MonoCompile *cfg, MonoBasicBlock *first, MonoBasicBlock *second) {
 894         int i, j;
 895         MonoInst *inst;
 896         MonoBasicBlock *bb;
 897
 898         if (second->code)
 899                 return;
 900
 901         /*
 902          * FIXME: take into account all the details:
 903          * second may have been the target of more than one bblock
 904          */
 905         second->out_count = first->out_count;
 906         second->out_bb = first->out_bb;
 907
 908         for (i = 0; i < first->out_count; ++i) {
 909                 bb = first->out_bb [i];
 910                 for (j = 0; j < bb->in_count; ++j) {
 911                         if (bb->in_bb [j] == first)
 912                                 bb->in_bb [j] = second;
 913                 }
 914         }
 915
 916         first->out_count = 0;
 917         first->out_bb = NULL;
 918         link_bblock (cfg, first, second);
 919
 920         second->last_ins = first->last_ins;
 921
 922         /*g_print ("start search at %p for %p\n", first->cil_code, second->cil_code);*/
 923         for (inst = first->code; inst && inst->next; inst = inst->next) {
 924                 /*char *code = mono_disasm_code_one (NULL, cfg->method, inst->next->cil_code, NULL);
 925                 g_print ("found %p: %s", inst->next->cil_code, code);
 926                 g_free (code);*/
 927                 if (inst->cil_code < second->cil_code && inst->next->cil_code >= second->cil_code) {
 928                         second->code = inst->next;
 929                         inst->next = NULL;
 930                         first->last_ins = inst;
 931                         second->next_bb = first->next_bb;
 932                         first->next_bb = second;
 933                         return;
 934                 }
 935         }
 936         if (!second->code) {
 937                 g_warning ("bblock split failed in %s::%s\n", cfg->method->klass->name, cfg->method->name);
 938                 //G_BREAKPOINT ();
 939         }
 940 }
 941
 942 static guint32
 943 reverse_branch_op (guint32 opcode)
 944 {
 945         static const int reverse_map [] = {
 946                 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
 947                 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
 948         };
 949         static const int reverse_fmap [] = {
 950                 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
 951                 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
 952         };
 953         static const int reverse_lmap [] = {
 954                 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
 955                 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
 956         };
 957         static const int reverse_imap [] = {
 958                 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
 959                 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
 960         };
 961
 962         if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
 963                 opcode = reverse_map [opcode - CEE_BEQ];
 964         } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
 965                 opcode = reverse_fmap [opcode - OP_FBEQ];
 966         } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
 967                 opcode = reverse_lmap [opcode - OP_LBEQ];
 968         } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
 969                 opcode = reverse_imap [opcode - OP_IBEQ];
 970         } else
 971                 g_assert_not_reached ();
 972
 973         return opcode;
 974 }
 975
 976 guint
 977 mono_type_to_ldind (MonoType *type)
 978 {
 979         if (type->byref)
 980                 return CEE_LDIND_I;
 981
 982 handle_enum:
 983         switch (type->type) {
 984         case MONO_TYPE_I1:
 985                 return CEE_LDIND_I1;
 986         case MONO_TYPE_U1:
 987         case MONO_TYPE_BOOLEAN:
 988                 return CEE_LDIND_U1;
 989         case MONO_TYPE_I2:
 990                 return CEE_LDIND_I2;
 991         case MONO_TYPE_U2:
 992         case MONO_TYPE_CHAR:
 993                 return CEE_LDIND_U2;
 994         case MONO_TYPE_I4:
 995                 return CEE_LDIND_I4;
 996         case MONO_TYPE_U4:
 997                 return CEE_LDIND_U4;
 998         case MONO_TYPE_I:
 999         case MONO_TYPE_U:
1000         case MONO_TYPE_PTR:
1001         case MONO_TYPE_FNPTR:
1002                 return CEE_LDIND_I;
1003         case MONO_TYPE_CLASS:
1004         case MONO_TYPE_STRING:
1005         case MONO_TYPE_OBJECT:
1006         case MONO_TYPE_SZARRAY:
1007         case MONO_TYPE_ARRAY:
1008                 return CEE_LDIND_REF;
1009         case MONO_TYPE_I8:
1010         case MONO_TYPE_U8:
1011                 return CEE_LDIND_I8;
1012         case MONO_TYPE_R4:
1013                 return CEE_LDIND_R4;
1014         case MONO_TYPE_R8:
1015                 return CEE_LDIND_R8;
1016         case MONO_TYPE_VALUETYPE:
1017                 if (type->data.klass->enumtype) {
1018                         type = type->data.klass->enum_basetype;
1019                         goto handle_enum;
1020                 }
1021                 return CEE_LDOBJ;
1022         case MONO_TYPE_TYPEDBYREF:
1023                 return CEE_LDOBJ;
1024         case MONO_TYPE_GENERICINST:
1025                 type = &type->data.generic_class->container_class->byval_arg;
1026                 goto handle_enum;
1027         default:
1028                 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1029         }
1030         return -1;
1031 }
1032
1033 guint
1034 mono_type_to_stind (MonoType *type)
1035 {
1036         if (type->byref)
1037                 return CEE_STIND_I;
1038
1039 handle_enum:
1040         switch (type->type) {
1041         case MONO_TYPE_I1:
1042         case MONO_TYPE_U1:
1043         case MONO_TYPE_BOOLEAN:
1044                 return CEE_STIND_I1;
1045         case MONO_TYPE_I2:
1046         case MONO_TYPE_U2:
1047         case MONO_TYPE_CHAR:
1048                 return CEE_STIND_I2;
1049         case MONO_TYPE_I4:
1050         case MONO_TYPE_U4:
1051                 return CEE_STIND_I4;
1052         case MONO_TYPE_I:
1053         case MONO_TYPE_U:
1054         case MONO_TYPE_PTR:
1055         case MONO_TYPE_FNPTR:
1056                 return CEE_STIND_I;
1057         case MONO_TYPE_CLASS:
1058         case MONO_TYPE_STRING:
1059         case MONO_TYPE_OBJECT:
1060         case MONO_TYPE_SZARRAY:
1061         case MONO_TYPE_ARRAY:
1062                 return CEE_STIND_REF;
1063         case MONO_TYPE_I8:
1064         case MONO_TYPE_U8:
1065                 return CEE_STIND_I8;
1066         case MONO_TYPE_R4:
1067                 return CEE_STIND_R4;
1068         case MONO_TYPE_R8:
1069                 return CEE_STIND_R8;
1070         case MONO_TYPE_VALUETYPE:
1071                 if (type->data.klass->enumtype) {
1072                         type = type->data.klass->enum_basetype;
1073                         goto handle_enum;
1074                 }
1075                 return CEE_STOBJ;
1076         case MONO_TYPE_TYPEDBYREF:
1077                 return CEE_STOBJ;
1078         case MONO_TYPE_GENERICINST:
1079                 type = &type->data.generic_class->container_class->byval_arg;
1080                 goto handle_enum;
1081         default:
1082                 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1083         }
1084         return -1;
1085 }
1086
1087 /*
1088  * Returns the type used in the eval stack when @type is loaded.
1089  * FIXME: return a MonoType/MonoClass for the byref and VALUETYPE cases.
1090  */
1091 static void
1092 type_to_eval_stack_type (MonoType *type, MonoInst *inst)
1093 {
1094         MonoClass *klass;
1095
1096         if (type->byref) {
1097                 inst->type = STACK_MP;
1098                 return;
1099         }
1100
1101         klass = mono_class_from_mono_type (type);
1102
1103 handle_enum:
1104         switch (type->type) {
1105         case MONO_TYPE_VOID:
1106                 inst->type = STACK_INV;
1107                 return;
1108         case MONO_TYPE_I1:
1109         case MONO_TYPE_U1:
1110         case MONO_TYPE_BOOLEAN:
1111         case MONO_TYPE_I2:
1112         case MONO_TYPE_U2:
1113         case MONO_TYPE_CHAR:
1114         case MONO_TYPE_I4:
1115         case MONO_TYPE_U4:
1116                 inst->type = STACK_I4;
1117                 return;
1118         case MONO_TYPE_I:
1119         case MONO_TYPE_U:
1120         case MONO_TYPE_PTR:
1121         case MONO_TYPE_FNPTR:
1122                 inst->type = STACK_PTR;
1123                 return;
1124         case MONO_TYPE_CLASS:
1125         case MONO_TYPE_STRING:
1126         case MONO_TYPE_OBJECT:
1127         case MONO_TYPE_SZARRAY:
1128         case MONO_TYPE_ARRAY:
1129                 inst->type = STACK_OBJ;
1130                 return;
1131         case MONO_TYPE_I8:
1132         case MONO_TYPE_U8:
1133                 inst->type = STACK_I8;
1134                 return;
1135         case MONO_TYPE_R4:
1136         case MONO_TYPE_R8:
1137                 inst->type = STACK_R8;
1138                 return;
1139         case MONO_TYPE_VALUETYPE:
1140                 if (type->data.klass->enumtype) {
1141                         type = type->data.klass->enum_basetype;
1142                         goto handle_enum;
1143                 } else {
1144                         inst->klass = klass;
1145                         inst->type = STACK_VTYPE;
1146                         return;
1147                 }
1148         case MONO_TYPE_TYPEDBYREF:
1149                 inst->klass = mono_defaults.typed_reference_class;
1150                 inst->type = STACK_VTYPE;
1151                 return;
1152         case MONO_TYPE_GENERICINST:
1153                 type = &type->data.generic_class->container_class->byval_arg;
1154                 goto handle_enum;
1155         default:
1156                 g_error ("unknown type 0x%02x in eval stack type", type->type);
1157         }
1158 }
1159
1160 /*
1161  * The following tables are used to quickly validate the IL code in type_from_op ().
1162  */
1163 static const char
1164 bin_num_table [STACK_MAX] [STACK_MAX] = {
1165         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1166         {STACK_INV, STACK_I4,  STACK_INV, STACK_PTR, STACK_INV, STACK_MP,  STACK_INV, STACK_INV},
1167         {STACK_INV, STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1168         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_MP,  STACK_INV, STACK_INV},
1169         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_R8,  STACK_INV, STACK_INV, STACK_INV},
1170         {STACK_INV, STACK_MP,  STACK_INV, STACK_MP,  STACK_INV, STACK_PTR, STACK_INV, STACK_INV},
1171         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1172         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
1173 };
1174
1175 static const char
1176 neg_table [] = {
1177         STACK_INV, STACK_I4, STACK_I8, STACK_PTR, STACK_R8, STACK_INV, STACK_INV, STACK_INV
1178 };
1179
1180 /* reduce the size of this table */
1181 static const char
1182 bin_int_table [STACK_MAX] [STACK_MAX] = {
1183         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1184         {STACK_INV, STACK_I4,  STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1185         {STACK_INV, STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1186         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1187         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1188         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1189         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1190         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
1191 };
1192
1193 static const char
1194 bin_comp_table [STACK_MAX] [STACK_MAX] = {
1195         {0},
1196         {0, 1, 0, 1, 0, 0, 4, 0},
1197         {0, 0, 1, 0, 0, 0, 0, 0},
1198         {0, 1, 0, 1, 0, 2, 4, 0},
1199         {0, 0, 0, 0, 1, 0, 0, 0},
1200         {0, 0, 0, 2, 0, 1, 0, 0},
1201         {0, 4, 0, 4, 0, 0, 3, 0},
1202         {0, 0, 0, 0, 0, 0, 0, 0},
1203 };
1204
1205 /* reduce the size of this table */
1206 static const char
1207 shift_table [STACK_MAX] [STACK_MAX] = {
1208         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1209         {STACK_INV, STACK_I4,  STACK_INV, STACK_I4,  STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1210         {STACK_INV, STACK_I8,  STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1211         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1212         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1213         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1214         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
1215         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
1216 };
1217
1218 /*
1219  * Tables to map from the non-specific opcode to the matching
1220  * type-specific opcode.
1221  */
1222 /* handles from CEE_ADD to CEE_SHR_UN (CEE_REM_UN for floats) */
1223 static const guint16
1224 binops_op_map [STACK_MAX] = {
1225         0, 0, OP_LADD-CEE_ADD, OP_PADD-CEE_ADD, OP_FADD-CEE_ADD, OP_PADD-CEE_ADD
1226 };
1227
1228 /* handles from CEE_NEG to CEE_CONV_U8 */
1229 static const guint16
1230 unops_op_map [STACK_MAX] = {
1231         0, 0, OP_LNEG-CEE_NEG, OP_PNEG-CEE_NEG, OP_FNEG-CEE_NEG, OP_PNEG-CEE_NEG
1232 };
1233
1234 /* handles from CEE_CONV_U2 to CEE_SUB_OVF_UN */
1235 static const guint16
1236 ovfops_op_map [STACK_MAX] = {
1237         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
1238 };
1239
1240 /* handles from CEE_CONV_OVF_I1_UN to CEE_CONV_OVF_U_UN */
1241 static const guint16
1242 ovf2ops_op_map [STACK_MAX] = {
1243         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
1244 };
1245
1246 /* handles from CEE_CONV_OVF_I1 to CEE_CONV_OVF_U8 */
1247 static const guint16
1248 ovf3ops_op_map [STACK_MAX] = {
1249         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
1250 };
1251
1252 /* handles from CEE_CEQ to CEE_CLT_UN */
1253 static const guint16
1254 ceqops_op_map [STACK_MAX] = {
1255         0, 0, OP_LCEQ-CEE_CEQ, OP_PCEQ-CEE_CEQ, OP_FCEQ-CEE_CEQ, OP_LCEQ-CEE_CEQ
1256 };
1257
1258 /*
1259  * Sets ins->type (the type on the eval stack) according to the
1260  * type of the opcode and the arguments to it.
1261  * Invalid IL code is marked by setting ins->type to the invalid value STACK_INV.
1262  *
1263  * FIXME: this function sets ins->type unconditionally in some cases, but
1264  * it should set it to invalid for some types (a conv.x on an object)
1265  */
1266 static void
1267 type_from_op (MonoInst *ins) {
1268         switch (ins->opcode) {
1269         /* binops */
1270         case CEE_ADD:
1271         case CEE_SUB:
1272         case CEE_MUL:
1273         case CEE_DIV:
1274         case CEE_REM:
1275                 /* FIXME: check unverifiable args for STACK_MP */
1276                 ins->type = bin_num_table [ins->inst_i0->type] [ins->inst_i1->type];
1277                 ins->opcode += binops_op_map [ins->type];
1278                 return;
1279         case CEE_DIV_UN:
1280         case CEE_REM_UN:
1281         case CEE_AND:
1282         case CEE_OR:
1283         case CEE_XOR:
1284                 ins->type = bin_int_table [ins->inst_i0->type] [ins->inst_i1->type];
1285                 ins->opcode += binops_op_map [ins->type];
1286                 return;
1287         case CEE_SHL:
1288         case CEE_SHR:
1289         case CEE_SHR_UN:
1290                 ins->type = shift_table [ins->inst_i0->type] [ins->inst_i1->type];
1291                 ins->opcode += binops_op_map [ins->type];
1292                 return;
1293         case OP_COMPARE:
1294         case OP_LCOMPARE:
1295                 /* FIXME: handle some specifics with ins->next->type */
1296                 ins->type = bin_comp_table [ins->inst_i0->type] [ins->inst_i1->type] ? STACK_I4: STACK_INV;
1297                 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))))
1298                         ins->opcode = OP_LCOMPARE;
1299                 return;
1300         case OP_CEQ:
1301         case OP_CGT:
1302         case OP_CGT_UN:
1303         case OP_CLT:
1304         case OP_CLT_UN:
1305                 ins->type = bin_comp_table [ins->inst_i0->type] [ins->inst_i1->type] ? STACK_I4: STACK_INV;
1306                 ins->opcode += ceqops_op_map [ins->inst_i0->type];
1307                 return;
1308         /* unops */
1309         case CEE_NEG:
1310                 ins->type = neg_table [ins->inst_i0->type];
1311                 ins->opcode += unops_op_map [ins->type];
1312                 return;
1313         case CEE_NOT:
1314                 if (ins->inst_i0->type >= STACK_I4 && ins->inst_i0->type <= STACK_PTR)
1315                         ins->type = ins->inst_i0->type;
1316                 else
1317                         ins->type = STACK_INV;
1318                 ins->opcode += unops_op_map [ins->type];
1319                 return;
1320         case CEE_CONV_I1:
1321         case CEE_CONV_I2:
1322         case CEE_CONV_I4:
1323         case CEE_CONV_U4:
1324                 ins->type = STACK_I4;
1325                 ins->opcode += unops_op_map [ins->inst_i0->type];
1326                 return;
1327         case CEE_CONV_R_UN:
1328                 ins->type = STACK_R8;
1329                 switch (ins->inst_i0->type) {
1330                 case STACK_I4:
1331                 case STACK_PTR:
1332                         break;
1333                 case STACK_I8:
1334                         ins->opcode = OP_LCONV_TO_R_UN;
1335                         break;
1336                 }
1337                 return;
1338         case CEE_CONV_OVF_I1:
1339         case CEE_CONV_OVF_U1:
1340         case CEE_CONV_OVF_I2:
1341         case CEE_CONV_OVF_U2:
1342         case CEE_CONV_OVF_I4:
1343         case CEE_CONV_OVF_U4:
1344                 ins->type = STACK_I4;
1345                 ins->opcode += ovf3ops_op_map [ins->inst_i0->type];
1346                 return;
1347         case CEE_CONV_OVF_I_UN:
1348         case CEE_CONV_OVF_U_UN:
1349                 ins->type = STACK_PTR;
1350                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1351                 return;
1352         case CEE_CONV_OVF_I1_UN:
1353         case CEE_CONV_OVF_I2_UN:
1354         case CEE_CONV_OVF_I4_UN:
1355         case CEE_CONV_OVF_U1_UN:
1356         case CEE_CONV_OVF_U2_UN:
1357         case CEE_CONV_OVF_U4_UN:
1358                 ins->type = STACK_I4;
1359                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1360                 return;
1361         case CEE_CONV_U:
1362                 ins->type = STACK_PTR;
1363                 switch (ins->inst_i0->type) {
1364                 case STACK_I4:
1365                 case STACK_PTR:
1366                 case STACK_MP:
1367                         break;
1368                 case STACK_I8:
1369                         ins->opcode = OP_LCONV_TO_U;
1370                         break;
1371                 case STACK_R8:
1372                         ins->opcode = OP_FCONV_TO_U;
1373                         break;
1374                 }
1375                 return;
1376         case CEE_CONV_I8:
1377         case CEE_CONV_U8:
1378                 ins->type = STACK_I8;
1379                 ins->opcode += unops_op_map [ins->inst_i0->type];
1380                 return;
1381         case CEE_CONV_OVF_I8:
1382         case CEE_CONV_OVF_U8:
1383                 ins->type = STACK_I8;
1384                 ins->opcode += ovf3ops_op_map [ins->inst_i0->type];
1385                 return;
1386         case CEE_CONV_OVF_U8_UN:
1387         case CEE_CONV_OVF_I8_UN:
1388                 ins->type = STACK_I8;
1389                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1390                 return;
1391         case CEE_CONV_R4:
1392         case CEE_CONV_R8:
1393                 ins->type = STACK_R8;
1394                 ins->opcode += unops_op_map [ins->inst_i0->type];
1395                 return;
1396         case CEE_CKFINITE:
1397                 ins->type = STACK_R8;
1398                 return;
1399         case CEE_CONV_U2:
1400         case CEE_CONV_U1:
1401                 ins->type = STACK_I4;
1402                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1403                 break;
1404         case CEE_CONV_I:
1405         case CEE_CONV_OVF_I:
1406         case CEE_CONV_OVF_U:
1407                 ins->type = STACK_PTR;
1408                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1409                 return;
1410         case CEE_ADD_OVF:
1411         case CEE_ADD_OVF_UN:
1412         case CEE_MUL_OVF:
1413         case CEE_MUL_OVF_UN:
1414         case CEE_SUB_OVF:
1415         case CEE_SUB_OVF_UN:
1416                 ins->type = bin_num_table [ins->inst_i0->type] [ins->inst_i1->type];
1417                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1418                 return;
1419         default:
1420                 g_error ("opcode 0x%04x not handled in type from op", ins->opcode);
1421                 break;
1422         }
1423 }
1424
1425 static const char
1426 ldind_type [] = {
1427         STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I8, STACK_MP, STACK_R8, STACK_R8, STACK_OBJ
1428 };
1429
1430 /* map ldelem.x to the matching ldind.x opcode */
1431 static const guchar
1432 ldelem_to_ldind [] = {
1433         CEE_LDIND_I1,
1434         CEE_LDIND_U1,
1435         CEE_LDIND_I2,
1436         CEE_LDIND_U2,
1437         CEE_LDIND_I4,
1438         CEE_LDIND_U4,
1439         CEE_LDIND_I8,
1440         CEE_LDIND_I,
1441         CEE_LDIND_R4,
1442         CEE_LDIND_R8,
1443         CEE_LDIND_REF
1444 };
1445
1446 /* map stelem.x to the matching stind.x opcode */
1447 static const guchar
1448 stelem_to_stind [] = {
1449         CEE_STIND_I,
1450         CEE_STIND_I1,
1451         CEE_STIND_I2,
1452         CEE_STIND_I4,
1453         CEE_STIND_I8,
1454         CEE_STIND_R4,
1455         CEE_STIND_R8,
1456         CEE_STIND_REF
1457 };
1458
1459 #if 0
1460
1461 static const char
1462 param_table [STACK_MAX] [STACK_MAX] = {
1463         {0},
1464 };
1465
1466 static int
1467 check_values_to_signature (MonoInst *args, MonoType *this, MonoMethodSignature *sig) {
1468         int i;
1469
1470         if (sig->hasthis) {
1471                 switch (args->type) {
1472                 case STACK_I4:
1473                 case STACK_I8:
1474                 case STACK_R8:
1475                 case STACK_VTYPE:
1476                 case STACK_INV:
1477                         return 0;
1478                 }
1479                 args++;
1480         }
1481         for (i = 0; i < sig->param_count; ++i) {
1482                 switch (args [i].type) {
1483                 case STACK_INV:
1484                         return 0;
1485                 case STACK_MP:
1486                         if (!sig->params [i]->byref)
1487                                 return 0;
1488                         continue;
1489                 case STACK_OBJ:
1490                         if (sig->params [i]->byref)
1491                                 return 0;
1492                         switch (sig->params [i]->type) {
1493                         case MONO_TYPE_CLASS:
1494                         case MONO_TYPE_STRING:
1495                         case MONO_TYPE_OBJECT:
1496                         case MONO_TYPE_SZARRAY:
1497                         case MONO_TYPE_ARRAY:
1498                                 break;
1499                         default:
1500                                 return 0;
1501                         }
1502                         continue;
1503                 case STACK_R8:
1504                         if (sig->params [i]->byref)
1505                                 return 0;
1506                         if (sig->params [i]->type != MONO_TYPE_R4 && sig->params [i]->type != MONO_TYPE_R8)
1507                                 return 0;
1508                         continue;
1509                 case STACK_PTR:
1510                 case STACK_I4:
1511                 case STACK_I8:
1512                 case STACK_VTYPE:
1513                         break;
1514                 }
1515                 /*if (!param_table [args [i].type] [sig->params [i]->type])
1516                         return 0;*/
1517         }
1518         return 1;
1519 }
1520 #endif
1521
1522 /*
1523  * When we need a pointer to the current domain many times in a method, we
1524  * call mono_domain_get() once and we store the result in a local variable.
1525  * This function returns the variable that represents the MonoDomain*.
1526  */
1527 inline static MonoInst *
1528 mono_get_domainvar (MonoCompile *cfg)
1529 {
1530         if (!cfg->domainvar)
1531                 cfg->domainvar = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1532         return cfg->domainvar;
1533 }
1534
1535 /*
1536  * The got_var contains the address of the Global Offset Table when AOT
1537  * compiling.
1538  */
1539 inline static MonoInst *
1540 mono_get_got_var (MonoCompile *cfg)
1541 {
1542 #ifdef MONO_ARCH_NEED_GOT_VAR
1543         if (!cfg->compile_aot)
1544                 return NULL;
1545         if (!cfg->got_var) {
1546                 cfg->got_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1547         }
1548         return cfg->got_var;
1549 #else
1550         return NULL;
1551 #endif
1552 }
1553
1554 MonoInst*
1555 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1556 {
1557         MonoInst *inst;
1558         int num = cfg->num_varinfo;
1559
1560         if ((num + 1) >= cfg->varinfo_count) {
1561                 cfg->varinfo_count = (cfg->varinfo_count + 2) * 2;
1562                 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
1563                 cfg->vars = (MonoMethodVar **)g_realloc (cfg->vars, sizeof (MonoMethodVar*) * cfg->varinfo_count);
1564         }
1565
1566         /*g_print ("created temp %d of type 0x%x\n", num, type->type);*/
1567         mono_jit_stats.allocate_var++;
1568
1569         MONO_INST_NEW (cfg, inst, opcode);
1570         inst->inst_c0 = num;
1571         inst->inst_vtype = type;
1572         inst->klass = mono_class_from_mono_type (type);
1573         /* if set to 1 the variable is native */
1574         inst->unused = 0;
1575
1576         cfg->varinfo [num] = inst;
1577
1578         cfg->vars [num] = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoMethodVar));
1579         MONO_INIT_VARINFO (cfg->vars [num], num);
1580
1581         cfg->num_varinfo++;
1582         //g_print ("created temp %d of type %s\n", num, mono_type_get_name (type));
1583         return inst;
1584 }
1585
1586 /*
1587  * Transform a MonoInst into a load from the variable of index var_index.
1588  */
1589 void
1590 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index) {
1591         memset (dest, 0, sizeof (MonoInst));
1592         dest->ssa_op = MONO_SSA_LOAD;
1593         dest->inst_i0 = cfg->varinfo [var_index];
1594         dest->opcode = mono_type_to_ldind (dest->inst_i0->inst_vtype);
1595         type_to_eval_stack_type (dest->inst_i0->inst_vtype, dest);
1596         dest->klass = dest->inst_i0->klass;
1597 }
1598
1599 /*
1600  * Create a MonoInst that is a load from the variable of index var_index.
1601  */
1602 MonoInst*
1603 mono_compile_create_var_load (MonoCompile *cfg, gssize var_index) {
1604         MonoInst *dest;
1605         NEW_TEMPLOAD (cfg,dest,var_index);
1606         return dest;
1607 }
1608
1609 /*
1610  * Create a MonoInst that is a store of the given value into the variable of index var_index.
1611  */
1612 MonoInst*
1613 mono_compile_create_var_store (MonoCompile *cfg, gssize var_index, MonoInst *value) {
1614         MonoInst *dest;
1615         NEW_TEMPSTORE (cfg, dest, var_index, value);
1616         return dest;
1617 }
1618
1619 static MonoType*
1620 type_from_stack_type (MonoInst *ins) {
1621         switch (ins->type) {
1622         case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1623         case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1624         case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1625         case STACK_R8: return &mono_defaults.double_class->byval_arg;
1626         case STACK_MP: return &mono_defaults.int_class->byval_arg;
1627         case STACK_OBJ: return &mono_defaults.object_class->byval_arg;
1628         case STACK_VTYPE: return &ins->klass->byval_arg;
1629         default:
1630                 g_error ("stack type %d to montype not handled\n", ins->type);
1631         }
1632         return NULL;
1633 }
1634
1635 MonoType*
1636 mono_type_from_stack_type (MonoInst *ins) {
1637         return type_from_stack_type (ins);
1638 }
1639
1640 static MonoClass*
1641 array_access_to_klass (int opcode)
1642 {
1643         switch (opcode) {
1644         case CEE_LDELEM_U1:
1645                 return mono_defaults.byte_class;
1646         case CEE_LDELEM_U2:
1647                 return mono_defaults.uint16_class;
1648         case CEE_LDELEM_I:
1649         case CEE_STELEM_I:
1650                 return mono_defaults.int_class;
1651         case CEE_LDELEM_I1:
1652         case CEE_STELEM_I1:
1653                 return mono_defaults.sbyte_class;
1654         case CEE_LDELEM_I2:
1655         case CEE_STELEM_I2:
1656                 return mono_defaults.int16_class;
1657         case CEE_LDELEM_I4:
1658         case CEE_STELEM_I4:
1659                 return mono_defaults.int32_class;
1660         case CEE_LDELEM_U4:
1661                 return mono_defaults.uint32_class;
1662         case CEE_LDELEM_I8:
1663         case CEE_STELEM_I8:
1664                 return mono_defaults.int64_class;
1665         case CEE_LDELEM_R4:
1666         case CEE_STELEM_R4:
1667                 return mono_defaults.single_class;
1668         case CEE_LDELEM_R8:
1669         case CEE_STELEM_R8:
1670                 return mono_defaults.double_class;
1671         case CEE_LDELEM_REF:
1672         case CEE_STELEM_REF:
1673                 return mono_defaults.object_class;
1674         default:
1675                 g_assert_not_reached ();
1676         }
1677         return NULL;
1678 }
1679
1680 void
1681 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1682 {
1683         MonoInst *prev;
1684         if (!bb->code) {
1685                 MONO_ADD_INS (bb, inst);
1686                 return;
1687         }
1688         switch (bb->last_ins->opcode) {
1689         case CEE_BEQ:
1690         case CEE_BGE:
1691         case CEE_BGT:
1692         case CEE_BLE:
1693         case CEE_BLT:
1694         case CEE_BNE_UN:
1695         case CEE_BGE_UN:
1696         case CEE_BGT_UN:
1697         case CEE_BLE_UN:
1698         case CEE_BLT_UN:
1699         case CEE_BR:
1700         case CEE_SWITCH:
1701                 prev = bb->code;
1702                 while (prev->next && prev->next != bb->last_ins)
1703                         prev = prev->next;
1704                 if (prev == bb->code) {
1705                         if (bb->last_ins == bb->code) {
1706                                 inst->next = bb->code;
1707                                 bb->code = inst;
1708                         } else {
1709                                 inst->next = prev->next;
1710                                 prev->next = inst;
1711                         }
1712                 } else {
1713                         inst->next = bb->last_ins;
1714                         prev->next = inst;
1715                 }
1716                 break;
1717         //      g_warning ("handle conditional jump in add_ins_to_end ()\n");
1718         default:
1719                 MONO_ADD_INS (bb, inst);
1720                 break;
1721         }
1722 }
1723
1724 void
1725 mono_add_varcopy_to_end (MonoCompile *cfg, MonoBasicBlock *bb, int src, int dest)
1726 {
1727         MonoInst *inst, *load;
1728
1729         NEW_TEMPLOAD (cfg, load, src);
1730
1731         NEW_TEMPSTORE (cfg, inst, dest, load);
1732         if (inst->opcode == CEE_STOBJ) {
1733                 NEW_TEMPLOADA (cfg, inst, dest);
1734                 handle_stobj (cfg, bb, inst, load, NULL, inst->klass, TRUE, FALSE);
1735         } else {
1736                 inst->cil_code = NULL;
1737                 mono_add_ins_to_end (bb, inst);
1738         }
1739 }
1740
1741 /*
1742  * We try to share variables when possible
1743  */
1744 static MonoInst *
1745 mono_compile_get_interface_var (MonoCompile *cfg, int slot, MonoInst *ins)
1746 {
1747         MonoInst *res;
1748         int pos, vnum;
1749
1750         /* inlining can result in deeper stacks */
1751         if (slot >= mono_method_get_header (cfg->method)->max_stack)
1752                 return mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1753
1754         pos = ins->type - 1 + slot * STACK_MAX;
1755
1756         switch (ins->type) {
1757         case STACK_I4:
1758         case STACK_I8:
1759         case STACK_R8:
1760         case STACK_PTR:
1761         case STACK_MP:
1762         case STACK_OBJ:
1763                 if ((vnum = cfg->intvars [pos]))
1764                         return cfg->varinfo [vnum];
1765                 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1766                 cfg->intvars [pos] = res->inst_c0;
1767                 break;
1768         default:
1769                 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1770         }
1771         return res;
1772 }
1773
1774 /*
1775  * This function is called to handle items that are left on the evaluation stack
1776  * at basic block boundaries. What happens is that we save the values to local variables
1777  * and we reload them later when first entering the target basic block (with the
1778  * handle_loaded_temps () function).
1779  * It is also used to handle items on the stack in store opcodes, since it is
1780  * possible that the variable to be stored into is already on the stack, in
1781  * which case its old value should be used.
1782  * A single joint point will use the same variables (stored in the array bb->out_stack or
1783  * bb->in_stack, if the basic block is before or after the joint point).
1784  */
1785 static int
1786 handle_stack_args (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **sp, int count) {
1787         int i, bindex;
1788         MonoBasicBlock *outb;
1789         MonoInst *inst, **locals;
1790         gboolean found;
1791
1792         if (!count)
1793                 return 0;
1794         if (cfg->verbose_level > 3)
1795                 g_print ("%d item(s) on exit from B%d\n", count, bb->block_num);
1796         if (!bb->out_scount) {
1797                 bb->out_scount = count;
1798                 //g_print ("bblock %d has out:", bb->block_num);
1799                 found = FALSE;
1800                 for (i = 0; i < bb->out_count; ++i) {
1801                         outb = bb->out_bb [i];
1802                         //g_print (" %d", outb->block_num);
1803                         if (outb->in_stack) {
1804                                 found = TRUE;
1805                                 bb->out_stack = outb->in_stack;
1806                                 break;
1807                         }
1808                 }
1809                 //g_print ("\n");
1810                 if (!found) {
1811                         bb->out_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * count);
1812                         for (i = 0; i < count; ++i) {
1813                                 /*
1814                                  * try to reuse temps already allocated for this purpouse, if they occupy the same
1815                                  * stack slot and if they are of the same type.
1816                                  * This won't cause conflicts since if 'local' is used to
1817                                  * store one of the values in the in_stack of a bblock, then
1818                                  * the same variable will be used for the same outgoing stack
1819                                  * slot as well.
1820                                  * This doesn't work when inlining methods, since the bblocks
1821                                  * in the inlined methods do not inherit their in_stack from
1822                                  * the bblock they are inlined to. See bug #58863 for an
1823                                  * example.
1824                                  */
1825                                 if (cfg->inlined_method)
1826                                         bb->out_stack [i] = mono_compile_create_var (cfg, type_from_stack_type (sp [i]), OP_LOCAL);
1827                                 else
1828                                         bb->out_stack [i] = mono_compile_get_interface_var (cfg, i, sp [i]);
1829                         }
1830                 }
1831         }
1832
1833         for (i = 0; i < bb->out_count; ++i) {
1834                 outb = bb->out_bb [i];
1835                 if (outb->in_scount)
1836                         continue; /* check they are the same locals */
1837                 outb->in_scount = count;
1838                 outb->in_stack = bb->out_stack;
1839         }
1840
1841         locals = bb->out_stack;
1842         for (i = 0; i < count; ++i) {
1843                 /* add store ops at the end of the bb, before the branch */
1844                 NEW_TEMPSTORE (cfg, inst, locals [i]->inst_c0, sp [i]);
1845                 if (inst->opcode == CEE_STOBJ) {
1846                         NEW_TEMPLOADA (cfg, inst, locals [i]->inst_c0);
1847                         handle_stobj (cfg, bb, inst, sp [i], sp [i]->cil_code, inst->klass, TRUE, FALSE);
1848                 } else {
1849                         inst->cil_code = sp [i]->cil_code;
1850                         mono_add_ins_to_end (bb, inst);
1851                 }
1852                 if (cfg->verbose_level > 3)
1853                         g_print ("storing %d to temp %d\n", i, (int)locals [i]->inst_c0);
1854         }
1855
1856         /*
1857          * It is possible that the out bblocks already have in_stack assigned, and
1858          * the in_stacks differ. In this case, we will store to all the different
1859          * in_stacks.
1860          */
1861
1862         found = TRUE;
1863         bindex = 0;
1864         while (found) {
1865                 /* Find a bblock which has a different in_stack */
1866                 found = FALSE;
1867                 while (bindex < bb->out_count) {
1868                         outb = bb->out_bb [bindex];
1869                         if (outb->in_stack != locals) {
1870                                 /*
1871                                  * Instead of storing sp [i] to locals [i], we need to store
1872                                  * locals [i] to <new locals>[i], since the sp [i] tree can't
1873                                  * be shared between trees.
1874                                  */
1875                                 for (i = 0; i < count; ++i)
1876                                         mono_add_varcopy_to_end (cfg, bb, locals [i]->inst_c0, outb->in_stack [i]->inst_c0);
1877                                 locals = outb->in_stack;
1878                                 found = TRUE;
1879                                 break;
1880                         }
1881                         bindex ++;
1882                 }
1883         }
1884
1885         return 0;
1886 }
1887
1888 static int
1889 ret_type_to_call_opcode (MonoType *type, int calli, int virt)
1890 {
1891         if (type->byref)
1892                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1893
1894 handle_enum:
1895         switch (type->type) {
1896         case MONO_TYPE_VOID:
1897                 return calli? OP_VOIDCALL_REG: virt? OP_VOIDCALLVIRT: OP_VOIDCALL;
1898         case MONO_TYPE_I1:
1899         case MONO_TYPE_U1:
1900         case MONO_TYPE_BOOLEAN:
1901         case MONO_TYPE_I2:
1902         case MONO_TYPE_U2:
1903         case MONO_TYPE_CHAR:
1904         case MONO_TYPE_I4:
1905         case MONO_TYPE_U4:
1906                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1907         case MONO_TYPE_I:
1908         case MONO_TYPE_U:
1909         case MONO_TYPE_PTR:
1910         case MONO_TYPE_FNPTR:
1911                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1912         case MONO_TYPE_CLASS:
1913         case MONO_TYPE_STRING:
1914         case MONO_TYPE_OBJECT:
1915         case MONO_TYPE_SZARRAY:
1916         case MONO_TYPE_ARRAY:
1917                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1918         case MONO_TYPE_I8:
1919         case MONO_TYPE_U8:
1920                 return calli? OP_LCALL_REG: virt? OP_LCALLVIRT: OP_LCALL;
1921         case MONO_TYPE_R4:
1922         case MONO_TYPE_R8:
1923                 return calli? OP_FCALL_REG: virt? OP_FCALLVIRT: OP_FCALL;
1924         case MONO_TYPE_VALUETYPE:
1925                 if (type->data.klass->enumtype) {
1926                         type = type->data.klass->enum_basetype;
1927                         goto handle_enum;
1928                 } else
1929                         return calli? OP_VCALL_REG: virt? OP_VCALLVIRT: OP_VCALL;
1930         case MONO_TYPE_TYPEDBYREF:
1931                 return calli? OP_VCALL_REG: virt? OP_VCALLVIRT: OP_VCALL;
1932         case MONO_TYPE_GENERICINST:
1933                 type = &type->data.generic_class->container_class->byval_arg;
1934                 goto handle_enum;
1935         default:
1936                 g_error ("unknown type 0x%02x in ret_type_to_call_opcode", type->type);
1937         }
1938         return -1;
1939 }
1940
1941 void
1942 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1943 {
1944         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1945         MonoJumpInfoBBTable *table;
1946
1947         table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1948         table->table = bbs;
1949         table->table_size = num_blocks;
1950
1951         ji->ip.label = label;
1952         ji->type = MONO_PATCH_INFO_SWITCH;
1953         ji->data.table = table;
1954         ji->next = cfg->patch_info;
1955         cfg->patch_info = ji;
1956 }
1957
1958 /*
1959  * When we add a tree of instructions, we need to ensure the instructions currently
1960  * on the stack are executed before (like, if we load a value from a local).
1961  * We ensure this by saving the currently loaded values to temps and rewriting the
1962  * instructions to load the values.
1963  * This is not done for opcodes that terminate a basic block (because it's handled already
1964  * by handle_stack_args ()) and for opcodes that can't change values, like POP.
1965  */
1966 static void
1967 handle_loaded_temps (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst **stack, MonoInst **sp)
1968 {
1969         MonoInst *load, *store, *temp, *ins;
1970
1971         while (stack < sp) {
1972                 ins = *stack;
1973                 /* handle also other constants */
1974                 if ((ins->opcode != OP_ICONST) &&
1975                     /* temps never get written to again, so we can safely avoid duplicating them */
1976                     !(ins->ssa_op == MONO_SSA_LOAD && ins->inst_i0->opcode == OP_LOCAL && ins->inst_i0->flags & MONO_INST_IS_TEMP)) {
1977                         temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1978                         temp->flags |= MONO_INST_IS_TEMP;
1979                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
1980                         store->cil_code = ins->cil_code;
1981                         if (store->opcode == CEE_STOBJ) {
1982                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
1983                                 handle_stobj (cfg, bblock, store, ins, ins->cil_code, temp->klass, FALSE, FALSE);
1984                         } else
1985                                 MONO_ADD_INS (bblock, store);
1986                         NEW_TEMPLOAD (cfg, load, temp->inst_c0);
1987                         load->cil_code = ins->cil_code;
1988                         *stack = load;
1989                 }
1990                 stack++;
1991         }
1992 }
1993
1994 /*
1995  * Prepare arguments for passing to a function call.
1996  * Return a non-zero value if the arguments can't be passed to the given
1997  * signature.
1998  * The type checks are not yet complete and some conversions may need
1999  * casts on 32 or 64 bit architectures.
2000  */
2001 static int
2002 check_call_signature (MonoCompile *cfg, MonoMethodSignature *sig, MonoInst **args)
2003 {
2004         MonoType *simple_type;
2005         int i;
2006
2007         if (sig->hasthis) {
2008                 if (args [0]->type != STACK_OBJ && args [0]->type != STACK_MP && args [0]->type != STACK_PTR)
2009                         return 1;
2010                 args++;
2011         }
2012         for (i = 0; i < sig->param_count; ++i) {
2013                 if (sig->params [i]->byref) {
2014                         if (args [i]->type != STACK_MP && args [i]->type != STACK_PTR)
2015                                 return 1;
2016                         continue;
2017                 }
2018                 simple_type = sig->params [i];
2019 handle_enum:
2020                 switch (simple_type->type) {
2021                 case MONO_TYPE_VOID:
2022                         return 1;
2023                         continue;
2024                 case MONO_TYPE_I1:
2025                 case MONO_TYPE_U1:
2026                 case MONO_TYPE_BOOLEAN:
2027                 case MONO_TYPE_I2:
2028                 case MONO_TYPE_U2:
2029                 case MONO_TYPE_CHAR:
2030                 case MONO_TYPE_I4:
2031                 case MONO_TYPE_U4:
2032                         if (args [i]->type != STACK_I4 && args [i]->type != STACK_PTR)
2033                                 return 1;
2034                         continue;
2035                 case MONO_TYPE_I:
2036                 case MONO_TYPE_U:
2037                 case MONO_TYPE_PTR:
2038                 case MONO_TYPE_FNPTR:
2039                         if (args [i]->type != STACK_I4 && args [i]->type != STACK_PTR && args [i]->type != STACK_MP && args [i]->type != STACK_OBJ)
2040                                 return 1;
2041                         continue;
2042                 case MONO_TYPE_CLASS:
2043                 case MONO_TYPE_STRING:
2044                 case MONO_TYPE_OBJECT:
2045                 case MONO_TYPE_SZARRAY:
2046                 case MONO_TYPE_ARRAY:
2047                         if (args [i]->type != STACK_OBJ)
2048                                 return 1;
2049                         continue;
2050                 case MONO_TYPE_I8:
2051                 case MONO_TYPE_U8:
2052                         if (args [i]->type != STACK_I8)
2053                                 return 1;
2054                         continue;
2055                 case MONO_TYPE_R4:
2056                 case MONO_TYPE_R8:
2057                         if (args [i]->type != STACK_R8)
2058                                 return 1;
2059                         continue;
2060                 case MONO_TYPE_VALUETYPE:
2061                         if (simple_type->data.klass->enumtype) {
2062                                 simple_type = simple_type->data.klass->enum_basetype;
2063                                 goto handle_enum;
2064                         }
2065                         if (args [i]->type != STACK_VTYPE)
2066                                 return 1;
2067                         continue;
2068                 case MONO_TYPE_TYPEDBYREF:
2069                         if (args [i]->type != STACK_VTYPE)
2070                                 return 1;
2071                         continue;
2072                 case MONO_TYPE_GENERICINST:
2073                         simple_type = &simple_type->data.generic_class->container_class->byval_arg;
2074                         goto handle_enum;
2075
2076                 default:
2077                         g_error ("unknown type 0x%02x in check_call_signature",
2078                                  simple_type->type);
2079                 }
2080         }
2081         return 0;
2082 }
2083
2084 inline static int
2085 mono_spill_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoCallInst *call, MonoMethodSignature *sig, gboolean ret_object,
2086                  const guint8 *ip, gboolean to_end)
2087 {
2088         MonoInst *temp, *store, *ins = (MonoInst*)call;
2089         MonoType *ret = sig->ret;
2090
2091         if (!MONO_TYPE_IS_VOID (ret) || ret_object) {
2092                 if (ret_object) {
2093                         call->inst.type = STACK_OBJ;
2094                         call->inst.opcode = CEE_CALL;
2095                         temp = mono_compile_create_var (cfg, &mono_defaults.string_class->byval_arg, OP_LOCAL);
2096                 } else {
2097                         type_to_eval_stack_type (ret, ins);
2098                         temp = mono_compile_create_var (cfg, ret, OP_LOCAL);
2099                 }
2100
2101                 temp->flags |= MONO_INST_IS_TEMP;
2102
2103                 if (MONO_TYPE_ISSTRUCT (ret)) {
2104                         MonoInst *loada, *dummy_store;
2105
2106                         /*
2107                          * Emit a dummy store to the local holding the result so the
2108                          * liveness info remains correct.
2109                          */
2110                         NEW_DUMMY_STORE (cfg, dummy_store, temp->inst_c0);
2111                         if (to_end)
2112                                 mono_add_ins_to_end (bblock, dummy_store);
2113                         else
2114                                 MONO_ADD_INS (bblock, dummy_store);
2115
2116                         /* we use this to allocate native sized structs */
2117                         temp->unused = sig->pinvoke;
2118
2119                         NEW_TEMPLOADA (cfg, loada, temp->inst_c0);
2120                         if (call->inst.opcode == OP_VCALL)
2121                                 ins->inst_left = loada;
2122                         else
2123                                 ins->inst_right = loada; /* a virtual or indirect call */
2124
2125                         if (to_end)
2126                                 mono_add_ins_to_end (bblock, ins);
2127                         else
2128                                 MONO_ADD_INS (bblock, ins);
2129                 } else {
2130                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
2131                         store->cil_code = ip;
2132                         if (to_end)
2133                                 mono_add_ins_to_end (bblock, store);
2134                         else
2135                                 MONO_ADD_INS (bblock, store);
2136                 }
2137                 return temp->inst_c0;
2138         } else {
2139                 if (to_end)
2140                         mono_add_ins_to_end (bblock, ins);
2141                 else
2142                         MONO_ADD_INS (bblock, ins);
2143                 return -1;
2144         }
2145 }
2146
2147 inline static MonoCallInst *
2148 mono_emit_call_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
2149                      MonoInst **args, int calli, int virtual, const guint8 *ip, gboolean to_end)
2150 {
2151         MonoCallInst *call;
2152         MonoInst *arg;
2153
2154         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (sig->ret, calli, virtual));
2155
2156         call->inst.cil_code = ip;
2157         call->args = args;
2158         call->signature = sig;
2159         call = mono_arch_call_opcode (cfg, bblock, call, virtual);
2160         type_to_eval_stack_type (sig->ret, &call->inst);
2161
2162         for (arg = call->out_args; arg;) {
2163                 MonoInst *narg = arg->next;
2164                 arg->next = NULL;
2165                 if (!arg->cil_code)
2166                         arg->cil_code = ip;
2167                 if (to_end)
2168                         mono_add_ins_to_end (bblock, arg);
2169                 else
2170                         MONO_ADD_INS (bblock, arg);
2171                 arg = narg;
2172         }
2173         return call;
2174 }
2175
2176 inline static int
2177 mono_emit_calli (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
2178                  MonoInst **args, MonoInst *addr, const guint8 *ip)
2179 {
2180         MonoCallInst *call = mono_emit_call_args (cfg, bblock, sig, args, TRUE, FALSE, ip, FALSE);
2181
2182         call->inst.inst_i0 = addr;
2183
2184         return mono_spill_call (cfg, bblock, call, sig, FALSE, ip, FALSE);
2185 }
2186
2187 static MonoCallInst*
2188 mono_emit_method_call_full (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method, MonoMethodSignature *sig,
2189                        MonoInst **args, const guint8 *ip, MonoInst *this, gboolean to_end)
2190 {
2191         gboolean virtual = this != NULL;
2192         MonoCallInst *call;
2193
2194         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, virtual, ip, to_end);
2195
2196         if (this && sig->hasthis &&
2197             (method->klass->marshalbyref || method->klass == mono_defaults.object_class) &&
2198             !(method->flags & METHOD_ATTRIBUTE_VIRTUAL) && !MONO_CHECK_THIS (this)) {
2199                 call->method = mono_marshal_get_remoting_invoke_with_check (method);
2200         } else {
2201                 call->method = method;
2202         }
2203         call->inst.flags |= MONO_INST_HAS_METHOD;
2204         call->inst.inst_left = this;
2205
2206         if (!virtual)
2207                 mono_get_got_var (cfg);
2208         else if (call->method->klass->flags & TYPE_ATTRIBUTE_INTERFACE)
2209                 /* Needed by the code generated in inssel.brg */
2210                 mono_get_got_var (cfg);
2211
2212         return call;
2213 }
2214
2215 static MonoCallInst*
2216 mono_emit_method_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method, MonoMethodSignature *sig,
2217                        MonoInst **args, const guint8 *ip, MonoInst *this)
2218 {
2219         return mono_emit_method_call_full (cfg, bblock, method, sig, args, ip, this, FALSE);
2220 }
2221
2222 inline static int
2223 mono_emit_method_call_spilled (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method,
2224                        MonoMethodSignature *signature, MonoInst **args, const guint8 *ip, MonoInst *this)
2225 {
2226         MonoCallInst *call = mono_emit_method_call (cfg, bblock, method, signature, args, ip, this);
2227
2228         return mono_spill_call (cfg, bblock, call, signature, method->string_ctor, ip, FALSE);
2229 }
2230
2231 inline static int
2232 mono_emit_method_call_spilled_full (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method,
2233                        MonoMethodSignature *signature, MonoInst **args, const guint8 *ip, MonoInst *this,
2234                        gboolean ret_object, gboolean to_end)
2235 {
2236         MonoCallInst *call = mono_emit_method_call_full (cfg, bblock, method, signature, args, ip, this, to_end);
2237
2238         return mono_spill_call (cfg, bblock, call, signature, ret_object, ip, to_end);
2239 }
2240
2241 inline static int
2242 mono_emit_native_call (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoMethodSignature *sig,
2243                        MonoInst **args, const guint8 *ip, gboolean ret_object, gboolean to_end)
2244 {
2245         MonoCallInst *call;
2246
2247         g_assert (sig);
2248
2249         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, FALSE, ip, to_end);
2250         call->fptr = func;
2251
2252         mono_get_got_var (cfg);
2253
2254         return mono_spill_call (cfg, bblock, call, sig, ret_object, ip, to_end);
2255 }
2256
2257 inline static int
2258 mono_emit_jit_icall (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoInst **args, const guint8 *ip)
2259 {
2260         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (func);
2261
2262         if (!info) {
2263                 g_warning ("unregistered JIT ICall");
2264                 g_assert_not_reached ();
2265         }
2266
2267         mono_get_got_var (cfg);
2268         return mono_emit_native_call (cfg, bblock, mono_icall_get_wrapper (info), info->sig, args, ip, FALSE, FALSE);
2269 }
2270
2271 static void
2272 mono_emulate_opcode (MonoCompile *cfg, MonoInst *tree, MonoInst **iargs, MonoJitICallInfo *info)
2273 {
2274         MonoInst *ins, *temp = NULL, *store, *load, *begin;
2275         MonoInst *last_arg = NULL;
2276         int nargs;
2277         MonoCallInst *call;
2278
2279         //g_print ("emulating: ");
2280         //mono_print_tree_nl (tree);
2281         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (info->sig->ret, FALSE, FALSE));
2282         ins = (MonoInst*)call;
2283
2284         call->inst.cil_code = tree->cil_code;
2285         call->args = iargs;
2286         call->signature = info->sig;
2287
2288         call = mono_arch_call_opcode (cfg, cfg->cbb, call, FALSE);
2289
2290         mono_get_got_var (cfg);
2291
2292         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2293                 temp = mono_compile_create_var (cfg, info->sig->ret, OP_LOCAL);
2294                 temp->flags |= MONO_INST_IS_TEMP;
2295                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
2296                 store->cil_code = tree->cil_code;
2297         } else {
2298                 store = ins;
2299         }
2300
2301         nargs = info->sig->param_count + info->sig->hasthis;
2302
2303         for (last_arg = call->out_args; last_arg && last_arg->next; last_arg = last_arg->next) ;
2304
2305         if (nargs)
2306                 last_arg->next = store;
2307
2308         if (nargs)
2309                 begin = call->out_args;
2310         else
2311                 begin = store;
2312
2313         if (cfg->prev_ins) {
2314                 /*
2315                  * This assumes that that in a tree, emulate_opcode is called for a
2316                  * node before it is called for its children. dec_foreach needs to
2317                  * take this into account.
2318                  */
2319                 store->next = cfg->prev_ins->next;
2320                 cfg->prev_ins->next = begin;
2321         } else {
2322                 store->next = cfg->cbb->code;
2323                 cfg->cbb->code = begin;
2324         }
2325
2326         call->fptr = mono_icall_get_wrapper (info);
2327
2328         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2329                 NEW_TEMPLOAD (cfg, load, temp->inst_c0);
2330                 *tree = *load;
2331         }
2332 }
2333
2334 static MonoMethodSignature *
2335 mono_get_element_address_signature (int arity)
2336 {
2337         static GHashTable *sighash = NULL;
2338         MonoMethodSignature *res;
2339         int i;
2340
2341         EnterCriticalSection (&jit_mutex);
2342         if (!sighash) {
2343                 sighash = g_hash_table_new (NULL, NULL);
2344         }
2345         else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
2346                 LeaveCriticalSection (&jit_mutex);
2347                 return res;
2348         }
2349
2350         res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
2351
2352         res->pinvoke = 1;
2353 #ifdef MONO_ARCH_VARARG_ICALLS
2354         /* Only set this only some archs since not all backends can handle varargs+pinvoke */
2355         res->call_convention = MONO_CALL_VARARG;
2356 #endif
2357         res->params [0] = &mono_defaults.array_class->byval_arg;
2358
2359         for (i = 1; i <= arity; i++)
2360                 res->params [i] = &mono_defaults.int_class->byval_arg;
2361
2362         res->ret = &mono_defaults.int_class->byval_arg;
2363
2364         g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
2365         LeaveCriticalSection (&jit_mutex);
2366
2367         return res;
2368 }
2369
2370 static MonoMethodSignature *
2371 mono_get_array_new_va_signature (int arity)
2372 {
2373         static GHashTable *sighash = NULL;
2374         MonoMethodSignature *res;
2375         int i;
2376
2377         EnterCriticalSection (&jit_mutex);
2378         if (!sighash) {
2379                 sighash = g_hash_table_new (NULL, NULL);
2380         }
2381         else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
2382                 LeaveCriticalSection (&jit_mutex);
2383                 return res;
2384         }
2385
2386         res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
2387
2388         res->pinvoke = 1;
2389 #ifdef MONO_ARCH_VARARG_ICALLS
2390         /* Only set this only some archs since not all backends can handle varargs+pinvoke */
2391         res->call_convention = MONO_CALL_VARARG;
2392 #endif
2393
2394         res->params [0] = &mono_defaults.int_class->byval_arg;
2395         for (i = 0; i < arity; i++)
2396                 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
2397
2398         res->ret = &mono_defaults.int_class->byval_arg;
2399
2400         g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
2401         LeaveCriticalSection (&jit_mutex);
2402
2403         return res;
2404 }
2405
2406 static MonoMethod*
2407 get_memcpy_method (void)
2408 {
2409         static MonoMethod *memcpy_method = NULL;
2410         if (!memcpy_method) {
2411                 memcpy_method = mono_class_get_method_from_name (mono_defaults.string_class, "memcpy", 3);
2412                 if (!memcpy_method)
2413                         g_error ("Old corlib found. Install a new one");
2414         }
2415         return memcpy_method;
2416 }
2417
2418 static void
2419 handle_stobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, MonoInst *src, const unsigned char *ip, MonoClass *klass, gboolean to_end, gboolean native) {
2420         MonoInst *iargs [3];
2421         int n;
2422         int align = 0;
2423         MonoMethod *memcpy_method;
2424
2425         g_assert (klass);
2426         /*
2427          * This check breaks with spilled vars... need to handle it during verification anyway.
2428          * g_assert (klass && klass == src->klass && klass == dest->klass);
2429          */
2430
2431         if (native)
2432                 n = mono_class_native_size (klass, &align);
2433         else
2434                 n = mono_class_value_size (klass, &align);
2435
2436         if ((cfg->opt & MONO_OPT_INTRINS) && !to_end && n <= sizeof (gpointer) * 5) {
2437                 MonoInst *inst;
2438                 if (dest->opcode == OP_LDADDR) {
2439                         /* Keep liveness info correct */
2440                         NEW_DUMMY_STORE (cfg, inst, dest->inst_i0->inst_c0);
2441                         MONO_ADD_INS (bblock, inst);
2442                 }
2443                 MONO_INST_NEW (cfg, inst, OP_MEMCPY);
2444                 inst->inst_left = dest;
2445                 inst->inst_right = src;
2446                 inst->cil_code = ip;
2447                 inst->unused = n;
2448                 MONO_ADD_INS (bblock, inst);
2449                 return;
2450         }
2451         iargs [0] = dest;
2452         iargs [1] = src;
2453         NEW_ICONST (cfg, iargs [2], n);
2454
2455         memcpy_method = get_memcpy_method ();
2456         mono_emit_method_call_spilled_full (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL, FALSE, to_end);
2457 }
2458
2459 static MonoMethod*
2460 get_memset_method (void)
2461 {
2462         static MonoMethod *memset_method = NULL;
2463         if (!memset_method) {
2464                 memset_method = mono_class_get_method_from_name (mono_defaults.string_class, "memset", 3);
2465                 if (!memset_method)
2466                         g_error ("Old corlib found. Install a new one");
2467         }
2468         return memset_method;
2469 }
2470
2471 static void
2472 handle_initobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, const guchar *ip, MonoClass *klass, MonoInst **stack_start, MonoInst **sp)
2473 {
2474         MonoInst *iargs [3];
2475         MonoInst *ins, *zero_int32;
2476         int n;
2477         MonoMethod *memset_method;
2478
2479         NEW_ICONST (cfg, zero_int32, 0);
2480
2481         mono_class_init (klass);
2482         n = mono_class_value_size (klass, NULL);
2483         MONO_INST_NEW (cfg, ins, 0);
2484         ins->cil_code = ip;
2485         ins->inst_left = dest;
2486         ins->inst_right = zero_int32;
2487         switch (n) {
2488         case 1:
2489                 ins->opcode = CEE_STIND_I1;
2490                 MONO_ADD_INS (bblock, ins);
2491                 break;
2492         case 2:
2493                 ins->opcode = CEE_STIND_I2;
2494                 MONO_ADD_INS (bblock, ins);
2495                 break;
2496         case 4:
2497                 ins->opcode = CEE_STIND_I4;
2498                 MONO_ADD_INS (bblock, ins);
2499                 break;
2500         default:
2501                 if (n <= sizeof (gpointer) * 5) {
2502                         ins->opcode = OP_MEMSET;
2503                         ins->inst_imm = 0;
2504                         ins->unused = n;
2505                         MONO_ADD_INS (bblock, ins);
2506                         break;
2507                 }
2508                 memset_method = get_memset_method ();
2509                 handle_loaded_temps (cfg, bblock, stack_start, sp);
2510                 iargs [0] = dest;
2511                 NEW_ICONST (cfg, iargs [1], 0);
2512                 NEW_ICONST (cfg, iargs [2], n);
2513                 mono_emit_method_call_spilled (cfg, bblock, memset_method, memset_method->signature, iargs, ip, NULL);
2514                 break;
2515         }
2516 }
2517
2518 static int
2519 handle_alloc (MonoCompile *cfg, MonoBasicBlock *bblock, MonoClass *klass, gboolean for_box, const guchar *ip)
2520 {
2521         MonoInst *iargs [2];
2522         void *alloc_ftn;
2523
2524         if (cfg->opt & MONO_OPT_SHARED) {
2525                 NEW_DOMAINCONST (cfg, iargs [0]);
2526                 NEW_CLASSCONST (cfg, iargs [1], klass);
2527
2528                 alloc_ftn = mono_object_new;
2529         } else {
2530                 MonoVTable *vtable = mono_class_vtable (cfg->domain, klass);
2531                 gboolean pass_lw;
2532
2533                 alloc_ftn = mono_class_get_allocation_ftn (vtable, for_box, &pass_lw);
2534                 if (pass_lw) {
2535                         guint32 lw = vtable->klass->instance_size;
2536                         lw = ((lw + (sizeof (gpointer) - 1)) & ~(sizeof (gpointer) - 1)) / sizeof (gpointer);
2537                         NEW_ICONST (cfg, iargs [0], lw);
2538                         NEW_VTABLECONST (cfg, iargs [1], vtable);
2539                 }
2540                 else
2541                         NEW_VTABLECONST (cfg, iargs [0], vtable);
2542         }
2543
2544         return mono_emit_jit_icall (cfg, bblock, alloc_ftn, iargs, ip);
2545 }
2546
2547 static MonoInst *
2548 handle_box (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *val, const guchar *ip, MonoClass *klass)
2549 {
2550         MonoInst *dest, *vtoffset, *add, *vstore;
2551         int temp;
2552
2553         temp = handle_alloc (cfg, bblock, klass, TRUE, ip);
2554         NEW_TEMPLOAD (cfg, dest, temp);
2555         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
2556         MONO_INST_NEW (cfg, add, OP_PADD);
2557         add->inst_left = dest;
2558         add->inst_right = vtoffset;
2559         add->cil_code = ip;
2560         add->klass = klass;
2561         MONO_INST_NEW (cfg, vstore, CEE_STIND_I);
2562         vstore->opcode = mono_type_to_stind (&klass->byval_arg);
2563         vstore->cil_code = ip;
2564         vstore->inst_left = add;
2565         vstore->inst_right = val;
2566
2567         if (vstore->opcode == CEE_STOBJ) {
2568                 handle_stobj (cfg, bblock, add, val, ip, klass, FALSE, FALSE);
2569         } else
2570                 MONO_ADD_INS (bblock, vstore);
2571
2572         NEW_TEMPLOAD (cfg, dest, temp);
2573         return dest;
2574 }
2575
2576 static int
2577 handle_array_new (MonoCompile *cfg, MonoBasicBlock *bblock, int rank, MonoInst **sp, unsigned char *ip)
2578 {
2579         MonoMethodSignature *esig;
2580         char icall_name [256];
2581         char *name;
2582         MonoJitICallInfo *info;
2583
2584         /* Need to register the icall so it gets an icall wrapper */
2585         sprintf (icall_name, "ves_array_new_va_%d", rank);
2586
2587         info = mono_find_jit_icall_by_name (icall_name);
2588         if (info == NULL) {
2589                 esig = mono_get_array_new_va_signature (rank);
2590                 name = g_strdup (icall_name);
2591                 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
2592
2593                 EnterCriticalSection (&jit_mutex);
2594                 g_hash_table_insert (jit_icall_name_hash, name, name);
2595                 LeaveCriticalSection (&jit_mutex);
2596         }
2597
2598         cfg->flags |= MONO_CFG_HAS_VARARGS;
2599
2600         return mono_emit_native_call (cfg, bblock, mono_icall_get_wrapper (info), info->sig, sp, ip, TRUE, FALSE);
2601 }
2602
2603 static void
2604 mono_emit_load_got_addr (MonoCompile *cfg)
2605 {
2606         MonoInst *load, *store, *dummy_use;
2607         MonoInst *get_got;
2608
2609         if (!cfg->got_var || cfg->got_var_allocated)
2610                 return;
2611
2612         MONO_INST_NEW (cfg, get_got, OP_LOAD_GOTADDR);
2613         NEW_TEMPSTORE (cfg, store, cfg->got_var->inst_c0, get_got);
2614
2615         /* Add it to the start of the first bblock */
2616         if (cfg->bb_entry->code) {
2617                 store->next = cfg->bb_entry->code;
2618                 cfg->bb_entry->code = store;
2619         }
2620         else
2621                 MONO_ADD_INS (cfg->bb_entry, store);
2622
2623         cfg->got_var_allocated = TRUE;
2624
2625         /*
2626          * Add a dummy use to keep the got_var alive, since real uses might
2627          * only be generated in the decompose or instruction selection phases.
2628          * Add it to end_bblock, so the variable's lifetime covers the whole
2629          * method.
2630          */
2631         NEW_TEMPLOAD (cfg, load, cfg->got_var->inst_c0);
2632         NEW_DUMMY_USE (cfg, dummy_use, load);
2633         MONO_ADD_INS (cfg->bb_exit, dummy_use);
2634 }
2635
2636 #define CODE_IS_STLOC(ip) (((ip) [0] >= CEE_STLOC_0 && (ip) [0] <= CEE_STLOC_3) || ((ip) [0] == CEE_STLOC_S))
2637
2638 static gboolean
2639 mini_class_is_system_array (MonoClass *klass)
2640 {
2641         if (klass->parent == mono_defaults.array_class)
2642                 return TRUE;
2643         else if (mono_defaults.generic_array_class && klass->parent && klass->parent->generic_class)
2644                 return klass->parent->generic_class->container_class == mono_defaults.generic_array_class;
2645         else
2646                 return FALSE;
2647 }
2648
2649 static gboolean
2650 mono_method_check_inlining (MonoCompile *cfg, MonoMethod *method)
2651 {
2652         MonoMethodHeader *header = mono_method_get_header (method);
2653         MonoMethodSignature *signature = mono_method_signature (method);
2654         MonoVTable *vtable;
2655         int i;
2656
2657 #ifdef MONO_ARCH_HAVE_LMF_OPS
2658         if (((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2659                  (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) &&
2660             !MONO_TYPE_ISSTRUCT (signature->ret) && !mini_class_is_system_array (method->klass))
2661                 return TRUE;
2662 #endif
2663
2664         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
2665             (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
2666             (method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING) ||
2667             (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) ||
2668             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
2669             (method->klass->marshalbyref) ||
2670             !header || header->num_clauses ||
2671             /* fixme: why cant we inline valuetype returns? */
2672             MONO_TYPE_ISSTRUCT (signature->ret))
2673                 return FALSE;
2674
2675         /* its not worth to inline methods with valuetype arguments?? */
2676         for (i = 0; i < signature->param_count; i++) {
2677                 if (MONO_TYPE_ISSTRUCT (signature->params [i])) {
2678                         return FALSE;
2679                 }
2680         }
2681
2682         /*
2683          * if we can initialize the class of the method right away, we do,
2684          * otherwise we don't allow inlining if the class needs initialization,
2685          * since it would mean inserting a call to mono_runtime_class_init()
2686          * inside the inlined code
2687          */
2688         if (!(cfg->opt & MONO_OPT_SHARED)) {
2689                 vtable = mono_class_vtable (cfg->domain, method->klass);
2690                 if (method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) {
2691                         if (cfg->run_cctors)
2692                                 mono_runtime_class_init (vtable);
2693                 }
2694                 else if (!vtable->initialized && mono_class_needs_cctor_run (method->klass, NULL))
2695                         return FALSE;
2696         } else {
2697                 /*
2698                  * If we're compiling for shared code
2699                  * the cctor will need to be run at aot method load time, for example,
2700                  * or at the end of the compilation of the inlining method.
2701                  */
2702                 if (mono_class_needs_cctor_run (method->klass, NULL) && !((method->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)))
2703                         return FALSE;
2704         }
2705         //if (!MONO_TYPE_IS_VOID (signature->ret)) return FALSE;
2706
2707         /*
2708          * CAS - do not inline methods with declarative security
2709          * Note: this has to be before any possible return TRUE;
2710          */
2711         if (mono_method_has_declsec (method))
2712                 return FALSE;
2713
2714         /* also consider num_locals? */
2715         if (getenv ("MONO_INLINELIMIT")) {
2716                 if (header->code_size < atoi (getenv ("MONO_INLINELIMIT"))) {
2717                         return TRUE;
2718                 }
2719         } else if (header->code_size < 20)
2720                 return TRUE;
2721
2722         return FALSE;
2723 }
2724
2725 static gboolean
2726 mini_field_access_needs_cctor_run (MonoCompile *cfg, MonoMethod *method, MonoVTable *vtable)
2727 {
2728         if (vtable->initialized && !cfg->compile_aot)
2729                 return FALSE;
2730
2731         if (vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT)
2732                 return FALSE;
2733
2734         if (!mono_class_needs_cctor_run (vtable->klass, method))
2735                 return FALSE;
2736
2737         if (! (method->flags & METHOD_ATTRIBUTE_STATIC) && (vtable->klass == method->klass))
2738                 /* The initialization is already done before the method is called */
2739                 return FALSE;
2740
2741         return TRUE;
2742 }
2743
2744 static MonoInst*
2745 mini_get_ldelema_ins (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *cmethod, MonoInst **sp, unsigned char *ip, gboolean is_set)
2746 {
2747         int temp, rank;
2748         MonoInst *addr;
2749         MonoMethodSignature *esig;
2750         char icall_name [256];
2751         char *name;
2752         MonoJitICallInfo *info;
2753
2754         rank = mono_method_signature (cmethod)->param_count - (is_set? 1: 0);
2755
2756         if (rank == 2 && (cfg->opt & MONO_OPT_INTRINS)) {
2757 #ifdef MONO_ARCH_EMULATE_MUL_DIV
2758                 /* OP_LDELEMA2D depends on OP_LMUL */
2759 #else
2760                 MonoInst *indexes;
2761                 NEW_GROUP (cfg, indexes, sp [1], sp [2]);
2762                 MONO_INST_NEW (cfg, addr, OP_LDELEMA2D);
2763                 addr->inst_left = sp [0];
2764                 addr->inst_right = indexes;
2765                 addr->cil_code = ip;
2766                 addr->type = STACK_MP;
2767                 addr->klass = cmethod->klass;
2768                 return addr;
2769 #endif
2770         }
2771
2772         /* Need to register the icall so it gets an icall wrapper */
2773         sprintf (icall_name, "ves_array_element_address_%d", rank);
2774
2775         info = mono_find_jit_icall_by_name (icall_name);
2776         if (info == NULL) {
2777                 esig = mono_get_element_address_signature (rank);
2778                 name = g_strdup (icall_name);
2779                 info = mono_register_jit_icall (ves_array_element_address, name, esig, FALSE);
2780
2781                 EnterCriticalSection (&jit_mutex);
2782                 g_hash_table_insert (jit_icall_name_hash, name, name);
2783                 LeaveCriticalSection (&jit_mutex);
2784         }
2785
2786         temp = mono_emit_native_call (cfg, bblock, mono_icall_get_wrapper (info), info->sig, sp, ip, FALSE, FALSE);
2787         cfg->flags |= MONO_CFG_HAS_VARARGS;
2788
2789         NEW_TEMPLOAD (cfg, addr, temp);
2790         return addr;
2791 }
2792
2793 static MonoJitICallInfo **emul_opcode_map = NULL;
2794
2795 static inline MonoJitICallInfo *
2796 mono_find_jit_opcode_emulation (int opcode)
2797 {
2798         if  (emul_opcode_map)
2799                 return emul_opcode_map [opcode];
2800         else
2801                 return NULL;
2802 }
2803
2804 static MonoException*
2805 mini_loader_error_to_exception (MonoLoaderError *error)
2806 {
2807         MonoException *ex = NULL;
2808
2809         switch (error->kind) {
2810         case MONO_LOADER_ERROR_TYPE: {
2811                 MonoString *class_name = mono_string_new (mono_domain_get (), error->class_name);
2812
2813                 ex = mono_get_exception_type_load (class_name, error->assembly_name);
2814                 break;
2815         }
2816         case MONO_LOADER_ERROR_METHOD:
2817         case MONO_LOADER_ERROR_FIELD: {
2818                 char *class_name;
2819
2820                 class_name = g_strdup_printf ("%s%s%s", error->klass->name_space, *error->klass->name_space ? "." : "", error->klass->name);
2821
2822                 if (error->kind == MONO_LOADER_ERROR_METHOD)
2823                         ex = mono_get_exception_missing_method (class_name, error->member_name);
2824                 else
2825                         ex = mono_get_exception_missing_field (class_name, error->member_name);
2826                 g_free (class_name);
2827                 break;
2828         }
2829         default:
2830                 g_assert_not_reached ();
2831         }
2832
2833         return ex;
2834 }
2835
2836 static MonoInst*
2837 mini_get_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
2838 {
2839         MonoInst *ins = NULL;
2840
2841         static MonoClass *runtime_helpers_class = NULL;
2842         if (! runtime_helpers_class)
2843                 runtime_helpers_class = mono_class_from_name (mono_defaults.corlib,
2844                         "System.Runtime.CompilerServices", "RuntimeHelpers");
2845
2846         if (cmethod->klass == mono_defaults.string_class) {
2847                 if (cmethod->name [0] != 'g')
2848                         return NULL;
2849
2850                 if (strcmp (cmethod->name, "get_Chars") == 0) {
2851                         MONO_INST_NEW (cfg, ins, OP_GETCHR);
2852                         ins->inst_i0 = args [0];
2853                         ins->inst_i1 = args [1];
2854                         return ins;
2855                 } else if (strcmp (cmethod->name, "get_Length") == 0) {
2856                         MONO_INST_NEW (cfg, ins, OP_STRLEN);
2857                         ins->inst_i0 = args [0];
2858                         return ins;
2859                 } else
2860                         return NULL;
2861         } else if (cmethod->klass == mono_defaults.object_class) {
2862                 if (strcmp (cmethod->name, "GetType") == 0) {
2863                         MONO_INST_NEW (cfg, ins, OP_GETTYPE);
2864                         ins->inst_i0 = args [0];
2865                         return ins;
2866                 } else if (strcmp (cmethod->name, "InternalGetHashCode") == 0) {
2867 #ifdef MONO_ARCH_EMULATE_MUL_DIV
2868                 /* The OP_GETHASHCODE rule depends on OP_MUL */
2869 #else
2870                         MONO_INST_NEW (cfg, ins, OP_GETHASHCODE);
2871                         ins->inst_i0 = args [0];
2872                         return ins;
2873 #endif
2874                 } else if (strcmp (cmethod->name, ".ctor") == 0) {
2875                         MONO_INST_NEW (cfg, ins, CEE_NOP);
2876                         return ins;
2877                 } else
2878                         return NULL;
2879         } else if (mini_class_is_system_array (cmethod->klass)) {
2880                 if (cmethod->name [0] != 'g')
2881                         return NULL;
2882
2883                 if (strcmp (cmethod->name, "get_Rank") == 0) {
2884                         MONO_INST_NEW (cfg, ins, OP_ARRAY_RANK);
2885                         ins->inst_i0 = args [0];
2886                         return ins;
2887                 } else if (strcmp (cmethod->name, "get_Length") == 0) {
2888                         MONO_INST_NEW (cfg, ins, CEE_LDLEN);
2889                         ins->inst_i0 = args [0];
2890                         return ins;
2891                 } else
2892                         return NULL;
2893         } else if (cmethod->klass == runtime_helpers_class) {
2894                 if (strcmp (cmethod->name, "get_OffsetToStringData") == 0) {
2895                         NEW_ICONST (cfg, ins, G_STRUCT_OFFSET (MonoString, chars));
2896                         return ins;
2897                 } else
2898                         return NULL;
2899         } else if (cmethod->klass == mono_defaults.thread_class) {
2900                 if (strcmp (cmethod->name, "get_CurrentThread") == 0 && (ins = mono_arch_get_thread_intrinsic (cfg)))
2901                         return ins;
2902         }
2903
2904         return mono_arch_get_inst_for_method (cfg, cmethod, fsig, args);
2905 }
2906
2907 static void
2908 mono_save_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig, MonoInst **sp, MonoInst **args)
2909 {
2910         MonoInst *store, *temp;
2911         int i;
2912
2913         g_assert (!MONO_TYPE_ISSTRUCT (sig->ret));
2914
2915         if (!sig->hasthis && sig->param_count == 0)
2916                 return;
2917
2918         if (sig->hasthis) {
2919                 if (sp [0]->opcode == OP_ICONST) {
2920                         *args++ = sp [0];
2921                 } else {
2922                         temp = mono_compile_create_var (cfg, type_from_stack_type (*sp), OP_LOCAL);
2923                         *args++ = temp;
2924                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
2925                         store->cil_code = sp [0]->cil_code;
2926                         MONO_ADD_INS (bblock, store);
2927                 }
2928                 sp++;
2929         }
2930
2931         for (i = 0; i < sig->param_count; ++i) {
2932                 if (sp [0]->opcode == OP_ICONST) {
2933                         *args++ = sp [0];
2934                 } else {
2935                         temp = mono_compile_create_var (cfg, sig->params [i], OP_LOCAL);
2936                         *args++ = temp;
2937                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
2938                         store->cil_code = sp [0]->cil_code;
2939                         if (store->opcode == CEE_STOBJ) {
2940                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
2941                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, temp->klass, FALSE, FALSE);
2942                         } else {
2943                                 MONO_ADD_INS (bblock, store);
2944                         }
2945                 }
2946                 sp++;
2947         }
2948 }
2949
2950 static int
2951 inline_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoBasicBlock *bblock, MonoInst **sp,
2952                 guchar *ip, guint real_offset, GList *dont_inline, MonoBasicBlock **last_b, gboolean inline_allways)
2953 {
2954         MonoInst *ins, *rvar = NULL;
2955         MonoMethodHeader *cheader;
2956         MonoBasicBlock *ebblock, *sbblock;
2957         int i, costs, new_locals_offset;
2958         MonoMethod *prev_inlined_method;
2959
2960         if (cfg->verbose_level > 2)
2961                 g_print ("INLINE START %p %s -> %s\n", cmethod,  mono_method_full_name (cfg->method, TRUE), mono_method_full_name (cmethod, TRUE));
2962
2963         if (!cmethod->inline_info) {
2964                 mono_jit_stats.inlineable_methods++;
2965                 cmethod->inline_info = 1;
2966         }
2967         /* allocate space to store the return value */
2968         if (!MONO_TYPE_IS_VOID (fsig->ret)) {
2969                 rvar =  mono_compile_create_var (cfg, fsig->ret, OP_LOCAL);
2970         }
2971
2972         /* allocate local variables */
2973         cheader = mono_method_get_header (cmethod);
2974         new_locals_offset = cfg->num_varinfo;
2975         for (i = 0; i < cheader->num_locals; ++i)
2976                 mono_compile_create_var (cfg, cheader->locals [i], OP_LOCAL);
2977
2978         /* allocate starte and end blocks */
2979         sbblock = NEW_BBLOCK (cfg);
2980         sbblock->block_num = cfg->num_bblocks++;
2981         sbblock->real_offset = real_offset;
2982
2983         ebblock = NEW_BBLOCK (cfg);
2984         ebblock->block_num = cfg->num_bblocks++;
2985         ebblock->real_offset = real_offset;
2986
2987         prev_inlined_method = cfg->inlined_method;
2988         cfg->inlined_method = cmethod;
2989
2990         costs = mono_method_to_ir (cfg, cmethod, sbblock, ebblock, new_locals_offset, rvar, dont_inline, sp, real_offset, *ip == CEE_CALLVIRT);
2991
2992         cfg->inlined_method = prev_inlined_method;
2993
2994         if ((costs >= 0 && costs < 60) || inline_allways) {
2995                 if (cfg->verbose_level > 2)
2996                         g_print ("INLINE END %s -> %s\n", mono_method_full_name (cfg->method, TRUE), mono_method_full_name (cmethod, TRUE));
2997
2998                 mono_jit_stats.inlined_methods++;
2999
3000                 /* always add some code to avoid block split failures */
3001                 MONO_INST_NEW (cfg, ins, CEE_NOP);
3002                 MONO_ADD_INS (bblock, ins);
3003                 ins->cil_code = ip;
3004
3005                 bblock->next_bb = sbblock;
3006                 link_bblock (cfg, bblock, sbblock);
3007
3008                 if (rvar) {
3009                         NEW_TEMPLOAD (cfg, ins, rvar->inst_c0);
3010                         *sp++ = ins;
3011                 }
3012                 *last_b = ebblock;
3013                 return costs + 1;
3014         } else {
3015                 if (cfg->verbose_level > 2)
3016                         g_print ("INLINE ABORTED %s\n", mono_method_full_name (cmethod, TRUE));
3017         }
3018         return 0;
3019 }
3020
3021 /*
3022  * Some of these comments may well be out-of-date.
3023  * Design decisions: we do a single pass over the IL code (and we do bblock
3024  * splitting/merging in the few cases when it's required: a back jump to an IL
3025  * address that was not already seen as bblock starting point).
3026  * Code is validated as we go (full verification is still better left to metadata/verify.c).
3027  * Complex operations are decomposed in simpler ones right away. We need to let the
3028  * arch-specific code peek and poke inside this process somehow (except when the
3029  * optimizations can take advantage of the full semantic info of coarse opcodes).
3030  * All the opcodes of the form opcode.s are 'normalized' to opcode.
3031  * MonoInst->opcode initially is the IL opcode or some simplification of that
3032  * (OP_LOAD, OP_STORE). The arch-specific code may rearrange it to an arch-specific
3033  * opcode with value bigger than OP_LAST.
3034  * At this point the IR can be handed over to an interpreter, a dumb code generator
3035  * or to the optimizing code generator that will translate it to SSA form.
3036  *
3037  * Profiling directed optimizations.
3038  * We may compile by default with few or no optimizations and instrument the code
3039  * or the user may indicate what methods to optimize the most either in a config file
3040  * or through repeated runs where the compiler applies offline the optimizations to
3041  * each method and then decides if it was worth it.
3042  *
3043  * TODO:
3044  * * consider using an array instead of an hash table (bb_hash)
3045  */
3046
3047 #define CHECK_TYPE(ins) if (!(ins)->type) goto unverified
3048 #define CHECK_STACK(num) if ((sp - stack_start) < (num)) goto unverified
3049 #define CHECK_STACK_OVF(num) if (((sp - stack_start) + (num)) > header->max_stack) goto unverified
3050 #define CHECK_ARG(num) if ((unsigned)(num) >= (unsigned)num_args) goto unverified
3051 #define CHECK_LOCAL(num) if ((unsigned)(num) >= (unsigned)header->num_locals) goto unverified
3052 #define CHECK_OPSIZE(size) if (ip + size > end) goto unverified
3053
3054
3055 /* offset from br.s -> br like opcodes */
3056 #define BIG_BRANCH_OFFSET 13
3057
3058 static gboolean
3059 ip_in_bb (MonoCompile *cfg, MonoBasicBlock *bb, const guint8* ip)
3060 {
3061         MonoBasicBlock *b = g_hash_table_lookup (cfg->bb_hash, ip);
3062
3063         return b == NULL || b == bb;
3064 }
3065
3066 static int
3067 get_basic_blocks (MonoCompile *cfg, GHashTable *bbhash, MonoMethodHeader* header, guint real_offset, unsigned char *start, unsigned char *end, unsigned char **pos)
3068 {
3069         unsigned char *ip = start;
3070         unsigned char *target;
3071         int i;
3072         guint cli_addr;
3073         MonoBasicBlock *bblock;
3074         const MonoOpcode *opcode;
3075
3076         while (ip < end) {
3077                 cli_addr = ip - start;
3078                 i = mono_opcode_value ((const guint8 **)&ip, end);
3079                 if (i < 0)
3080                         goto unverified;
3081                 opcode = &mono_opcodes [i];
3082                 switch (opcode->argument) {
3083                 case MonoInlineNone:
3084                         ip++;
3085                         break;
3086                 case MonoInlineString:
3087                 case MonoInlineType:
3088                 case MonoInlineField:
3089                 case MonoInlineMethod:
3090                 case MonoInlineTok:
3091                 case MonoInlineSig:
3092                 case MonoShortInlineR:
3093                 case MonoInlineI:
3094                         ip += 5;
3095                         break;
3096                 case MonoInlineVar:
3097                         ip += 3;
3098                         break;
3099                 case MonoShortInlineVar:
3100                 case MonoShortInlineI:
3101                         ip += 2;
3102                         break;
3103                 case MonoShortInlineBrTarget:
3104                         target = start + cli_addr + 2 + (signed char)ip [1];
3105                         GET_BBLOCK (cfg, bbhash, bblock, target);
3106                         ip += 2;
3107                         if (ip < end)
3108                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
3109                         break;
3110                 case MonoInlineBrTarget:
3111                         target = start + cli_addr + 5 + (gint32)read32 (ip + 1);
3112                         GET_BBLOCK (cfg, bbhash, bblock, target);
3113                         ip += 5;
3114                         if (ip < end)
3115                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
3116                         break;
3117                 case MonoInlineSwitch: {
3118                         guint32 n = read32 (ip + 1);
3119                         guint32 j;
3120                         ip += 5;
3121                         cli_addr += 5 + 4 * n;
3122                         target = start + cli_addr;
3123                         GET_BBLOCK (cfg, bbhash, bblock, target);
3124
3125                         for (j = 0; j < n; ++j) {
3126                                 target = start + cli_addr + (gint32)read32 (ip);
3127                                 GET_BBLOCK (cfg, bbhash, bblock, target);
3128                                 ip += 4;
3129                         }
3130                         break;
3131                 }
3132                 case MonoInlineR:
3133                 case MonoInlineI8:
3134                         ip += 9;
3135                         break;
3136                 default:
3137                         g_assert_not_reached ();
3138                 }
3139
3140                 if (i == CEE_THROW) {
3141                         unsigned char *bb_start = ip - 1;
3142
3143                         /* Find the start of the bblock containing the throw */
3144                         bblock = NULL;
3145                         while ((bb_start > start) && !bblock) {
3146                                 bblock = g_hash_table_lookup (bbhash, (bb_start));
3147                                 bb_start --;
3148                         }
3149                         if (bblock)
3150                                 bblock->out_of_line = 1;
3151                 }
3152         }
3153         return 0;
3154 unverified:
3155         *pos = ip;
3156         return 1;
3157 }
3158
3159 static MonoInst*
3160 emit_tree (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *ins, const guint8* ip_next)
3161 {
3162         MonoInst *store, *temp, *load;
3163
3164         if (ip_in_bb (cfg, bblock, ip_next) &&
3165                 (CODE_IS_STLOC (ip_next) || *ip_next == CEE_RET))
3166                         return ins;
3167
3168         temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
3169         temp->flags |= MONO_INST_IS_TEMP;
3170         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
3171         store->cil_code = ins->cil_code;
3172         MONO_ADD_INS (bblock, store);
3173         NEW_TEMPLOAD (cfg, load, temp->inst_c0);
3174         load->cil_code = ins->cil_code;
3175         return load;
3176 }
3177
3178 static inline MonoMethod *
3179 mini_get_method (MonoMethod *m, guint32 token, MonoClass *klass, MonoGenericContext *context)
3180 {
3181         MonoMethod *method;
3182
3183         if (m->wrapper_type != MONO_WRAPPER_NONE)
3184                 return mono_method_get_wrapper_data (m, token);
3185
3186         method = mono_get_method_full (m->klass->image, token, klass, context);
3187
3188         if (method && method->is_inflated)
3189                 method = mono_get_inflated_method (method);
3190
3191         return method;
3192 }
3193
3194 static inline MonoClass*
3195 mini_get_class (MonoMethod *method, guint32 token, MonoGenericContext *context)
3196 {
3197         MonoClass *klass;
3198
3199         if (method->wrapper_type != MONO_WRAPPER_NONE)
3200                 klass = mono_method_get_wrapper_data (method, token);
3201         else
3202                 klass = mono_class_get_full (method->klass->image, token, context);
3203         if (klass)
3204                 mono_class_init (klass);
3205         return klass;
3206 }
3207
3208 static
3209 void check_linkdemand (MonoCompile *cfg, MonoMethod *caller, MonoMethod *callee, MonoBasicBlock *bblock, unsigned char *ip)
3210 {
3211         guint32 result = mono_declsec_linkdemand (cfg->domain, caller, callee);
3212         if (result == MONO_JIT_SECURITY_OK)
3213                 return;
3214
3215         if (result == MONO_JIT_LINKDEMAND_ECMA) {
3216                 /* Generate code to throw a SecurityException before the actual call/link */
3217                 MonoAssembly *assembly = mono_image_get_assembly (caller->klass->image);
3218                 MonoReflectionAssembly *refass = (MonoReflectionAssembly*) mono_assembly_get_object (cfg->domain, assembly);
3219                 MonoReflectionMethod *refmet = mono_method_get_object (cfg->domain, caller, NULL);
3220                 MonoSecurityManager *secman = mono_security_manager_get_methods ();
3221                 MonoInst *args [3];
3222
3223                 NEW_ICONST (cfg, args [0], 4);
3224                 NEW_PCONST (cfg, args [1], refass);
3225                 NEW_PCONST (cfg, args [2], refmet);
3226                 mono_emit_method_call_spilled (cfg, bblock, secman->linkdemandsecurityexception, mono_method_signature (secman->linkdemandsecurityexception), args, ip, NULL);
3227         } else if (cfg->exception_type == MONO_EXCEPTION_NONE) {
3228                  /* don't hide previous results */
3229                 cfg->exception_type = MONO_EXCEPTION_SECURITY_LINKDEMAND;
3230                 cfg->exception_data = result;
3231         }
3232 }
3233
3234
3235 /*
3236  * mono_method_to_ir: translates IL into basic blocks containing trees
3237  */
3238 static int
3239 mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
3240                    int locals_offset, MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
3241                    guint inline_offset, gboolean is_virtual_call)
3242 {
3243         MonoInst *zero_int32, *zero_int64, *zero_ptr, *zero_obj, *zero_r8;
3244         MonoInst *ins, **sp, **stack_start;
3245         MonoBasicBlock *bblock, *tblock = NULL, *init_localsbb = NULL;
3246         GHashTable *bbhash;
3247         MonoMethod *cmethod;
3248         MonoInst **arg_array;
3249         MonoMethodHeader *header;
3250         MonoImage *image;
3251         guint32 token, ins_flag;
3252         MonoClass *klass;
3253         MonoClass *constrained_call = NULL;
3254         unsigned char *ip, *end, *target, *err_pos;
3255         static double r8_0 = 0.0;
3256         MonoMethodSignature *sig;
3257         MonoGenericContext *generic_context = NULL;
3258         MonoGenericContainer *generic_container = NULL;
3259         MonoType **param_types;
3260         GList *bb_recheck = NULL, *tmp;
3261         int i, n, start_new_bblock, align;
3262         int num_calls = 0, inline_costs = 0;
3263         int breakpoint_id = 0;
3264         guint real_offset, num_args;
3265         MonoBoolean security, pinvoke;
3266         MonoSecurityManager* secman = NULL;
3267         MonoDeclSecurityActions actions;
3268         GSList *class_inits = NULL;
3269
3270         image = method->klass->image;
3271         header = mono_method_get_header (method);
3272         generic_container = ((MonoMethodNormal *)method)->generic_container;
3273         sig = mono_method_signature (method);
3274         num_args = sig->hasthis + sig->param_count;
3275         ip = (unsigned char*)header->code;
3276         end = ip + header->code_size;
3277         mono_jit_stats.cil_code_size += header->code_size;
3278
3279         if (sig->is_inflated)
3280                 generic_context = ((MonoMethodInflated *) method)->context;
3281         else if (generic_container)
3282                 generic_context = &generic_container->context;
3283
3284         g_assert (!sig->has_type_parameters);
3285
3286         if (cfg->method == method) {
3287                 real_offset = 0;
3288                 bbhash = cfg->bb_hash;
3289         } else {
3290                 real_offset = inline_offset;
3291                 bbhash = g_hash_table_new (g_direct_hash, NULL);
3292         }
3293
3294         if (cfg->verbose_level > 2)
3295                 g_print ("method to IR %s\n", mono_method_full_name (method, TRUE));
3296
3297         dont_inline = g_list_prepend (dont_inline, method);
3298         if (cfg->method == method) {
3299
3300                 if (cfg->method->save_lmf)
3301                         /* Needed by the prolog code */
3302                         mono_get_got_var (cfg);
3303
3304                 if (cfg->prof_options & MONO_PROFILE_INS_COVERAGE)
3305                         cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, header->code_size);
3306
3307                 /* ENTRY BLOCK */
3308                 cfg->bb_entry = start_bblock = NEW_BBLOCK (cfg);
3309                 start_bblock->cil_code = NULL;
3310                 start_bblock->cil_length = 0;
3311                 start_bblock->block_num = cfg->num_bblocks++;
3312
3313                 /* EXIT BLOCK */
3314                 cfg->bb_exit = end_bblock = NEW_BBLOCK (cfg);
3315                 end_bblock->cil_code = NULL;
3316                 end_bblock->cil_length = 0;
3317                 end_bblock->block_num = cfg->num_bblocks++;
3318                 g_assert (cfg->num_bblocks == 2);
3319
3320                 arg_array = alloca (sizeof (MonoInst *) * num_args);
3321                 for (i = num_args - 1; i >= 0; i--)
3322                         arg_array [i] = cfg->varinfo [i];
3323
3324                 if (header->num_clauses) {
3325                         cfg->spvars = g_hash_table_new (NULL, NULL);
3326                         cfg->exvars = g_hash_table_new (NULL, NULL);
3327                 }
3328                 /* handle exception clauses */
3329                 for (i = 0; i < header->num_clauses; ++i) {
3330                         //unsigned char *p = ip;
3331                         MonoExceptionClause *clause = &header->clauses [i];
3332                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->try_offset);
3333                         tblock->real_offset = clause->try_offset;
3334                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->handler_offset);
3335                         tblock->real_offset = clause->handler_offset;
3336
3337                         if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY ||
3338                             clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3339                                 MONO_INST_NEW (cfg, ins, OP_START_HANDLER);
3340                                 MONO_ADD_INS (tblock, ins);
3341                         }
3342
3343                         /*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);
3344                           while (p < end) {
3345                           g_print ("%s", mono_disasm_code_one (NULL, method, p, &p));
3346                           }*/
3347                         /* catch and filter blocks get the exception object on the stack */
3348                         if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE ||
3349                             clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3350                                 MonoInst *load, *dummy_use;
3351
3352                                 /* mostly like handle_stack_args (), but just sets the input args */
3353                                 /* g_print ("handling clause at IL_%04x\n", clause->handler_offset); */
3354                                 tblock->in_scount = 1;
3355                                 tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
3356                                 tblock->in_stack [0] = mono_create_exvar_for_offset (cfg, clause->handler_offset);
3357
3358                                 /*
3359                                  * Add a dummy use for the exvar so its liveness info will be
3360                                  * correct.
3361                                  */
3362                                 NEW_TEMPLOAD (cfg, load, tblock->in_stack [0]->inst_c0);
3363                                 NEW_DUMMY_USE (cfg, dummy_use, load);
3364                                 MONO_ADD_INS (tblock, dummy_use);
3365
3366                                 if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3367                                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->data.filter_offset);
3368                                         tblock->real_offset = clause->data.filter_offset;
3369                                         tblock->in_scount = 1;
3370                                         tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
3371                                         /* The filter block shares the exvar with the handler block */
3372                                         tblock->in_stack [0] = mono_create_exvar_for_offset (cfg, clause->handler_offset);
3373                                         MONO_INST_NEW (cfg, ins, OP_START_HANDLER);
3374                                         MONO_ADD_INS (tblock, ins);
3375                                 }
3376                         }
3377                 }
3378         } else {
3379                 arg_array = alloca (sizeof (MonoInst *) * num_args);
3380                 mono_save_args (cfg, start_bblock, sig, inline_args, arg_array);
3381         }
3382
3383         /* FIRST CODE BLOCK */
3384         bblock = NEW_BBLOCK (cfg);
3385         bblock->cil_code = ip;
3386
3387         ADD_BBLOCK (cfg, bbhash, bblock);
3388
3389         if (cfg->method == method) {
3390                 breakpoint_id = mono_debugger_method_has_breakpoint (method);
3391                 if (breakpoint_id && (mono_debug_format != MONO_DEBUG_FORMAT_DEBUGGER)) {
3392                         MONO_INST_NEW (cfg, ins, CEE_BREAK);
3393                         MONO_ADD_INS (bblock, ins);
3394                 }
3395         }
3396
3397         if (mono_use_security_manager)
3398                 secman = mono_security_manager_get_methods ();
3399
3400         security = (secman && mono_method_has_declsec (method));
3401         /* at this point having security doesn't mean we have any code to generate */
3402         if (security && (cfg->method == method)) {
3403                 /* Only Demand, NonCasDemand and DemandChoice requires code generation.
3404                  * And we do not want to enter the next section (with allocation) if we
3405                  * have nothing to generate */
3406                 security = mono_declsec_get_demands (method, &actions);
3407         }
3408
3409         /* we must Demand SecurityPermission.Unmanaged before P/Invoking */
3410         pinvoke = (secman && (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE));
3411         if (pinvoke) {
3412                 MonoMethod *wrapped = mono_marshal_method_from_wrapper (method);
3413                 if (wrapped && (wrapped->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3414                         MonoCustomAttrInfo* custom = mono_custom_attrs_from_method (wrapped);
3415
3416                         /* unless the method or it's class has the [SuppressUnmanagedCodeSecurity] attribute */
3417                         if (custom && mono_custom_attrs_has_attr (custom, secman->suppressunmanagedcodesecurity)) {
3418                                 pinvoke = FALSE;
3419                         }
3420
3421                         if (pinvoke) {
3422                                 custom = mono_custom_attrs_from_class (wrapped->klass);
3423                                 if (custom && mono_custom_attrs_has_attr (custom, secman->suppressunmanagedcodesecurity)) {
3424                                         pinvoke = FALSE;
3425                                 }
3426                         }
3427                 } else {
3428                         /* not a P/Invoke after all */
3429                         pinvoke = FALSE;
3430                 }
3431         }
3432
3433         if ((header->init_locals || (cfg->method == method && (cfg->opt & MONO_OPT_SHARED))) || mono_compile_aot || security || pinvoke) {
3434                 /* we use a separate basic block for the initialization code */
3435                 cfg->bb_init = init_localsbb = NEW_BBLOCK (cfg);
3436                 init_localsbb->real_offset = real_offset;
3437                 start_bblock->next_bb = init_localsbb;
3438                 init_localsbb->next_bb = bblock;
3439                 link_bblock (cfg, start_bblock, init_localsbb);
3440                 link_bblock (cfg, init_localsbb, bblock);
3441                 init_localsbb->block_num = cfg->num_bblocks++;
3442         } else {
3443                 start_bblock->next_bb = bblock;
3444                 link_bblock (cfg, start_bblock, bblock);
3445         }
3446
3447         /* at this point we know, if security is TRUE, that some code needs to be generated */
3448         if (security && (cfg->method == method)) {
3449                 MonoInst *args [2];
3450
3451                 mono_jit_stats.cas_demand_generation++;
3452
3453                 if (actions.demand.blob) {
3454                         /* Add code for SecurityAction.Demand */
3455                         NEW_DECLSECCONST (cfg, args[0], image, actions.demand);
3456                         NEW_ICONST (cfg, args [1], actions.demand.size);
3457                         /* Calls static void SecurityManager.InternalDemand (byte* permissions, int size); */
3458                         mono_emit_method_call_spilled (cfg, init_localsbb, secman->demand, mono_method_signature (secman->demand), args, ip, NULL);
3459                 }
3460                 if (actions.noncasdemand.blob) {
3461                         /* CLR 1.x uses a .noncasdemand (but 2.x doesn't) */
3462                         /* For Mono we re-route non-CAS Demand to Demand (as the managed code must deal with it anyway) */
3463                         NEW_DECLSECCONST (cfg, args[0], image, actions.noncasdemand);
3464                         NEW_ICONST (cfg, args [1], actions.noncasdemand.size);
3465                         /* Calls static void SecurityManager.InternalDemand (byte* permissions, int size); */
3466                         mono_emit_method_call_spilled (cfg, init_localsbb, secman->demand, mono_method_signature (secman->demand), args, ip, NULL);
3467                 }
3468                 if (actions.demandchoice.blob) {
3469                         /* New in 2.0, Demand must succeed for one of the permissions (i.e. not all) */
3470                         NEW_DECLSECCONST (cfg, args[0], image, actions.demandchoice);
3471                         NEW_ICONST (cfg, args [1], actions.demandchoice.size);
3472                         /* Calls static void SecurityManager.InternalDemandChoice (byte* permissions, int size); */
3473                         mono_emit_method_call_spilled (cfg, init_localsbb, secman->demandchoice, mono_method_signature (secman->demandchoice), args, ip, NULL);
3474                 }
3475         }
3476
3477         /* we must Demand SecurityPermission.Unmanaged before p/invoking */
3478         if (pinvoke) {
3479                 mono_emit_method_call_spilled (cfg, init_localsbb, secman->demandunmanaged, mono_method_signature (secman->demandunmanaged), NULL, ip, NULL);
3480         }
3481
3482         if (get_basic_blocks (cfg, bbhash, header, real_offset, ip, end, &err_pos)) {
3483                 ip = err_pos;
3484                 goto unverified;
3485         }
3486
3487         if (cfg->method == method)
3488                 mono_debug_init_method (cfg, bblock, breakpoint_id);
3489
3490         param_types = mono_mempool_alloc (cfg->mempool, sizeof (MonoType*) * num_args);
3491         if (sig->hasthis)
3492                 param_types [0] = method->klass->valuetype?&method->klass->this_arg:&method->klass->byval_arg;
3493         for (n = 0; n < sig->param_count; ++n)
3494                 param_types [n + sig->hasthis] = sig->params [n];
3495         class_inits = NULL;
3496
3497         /* do this somewhere outside - not here */
3498         NEW_ICONST (cfg, zero_int32, 0);
3499         NEW_ICONST (cfg, zero_int64, 0);
3500         zero_int64->type = STACK_I8;
3501         NEW_PCONST (cfg, zero_ptr, 0);
3502         NEW_PCONST (cfg, zero_obj, 0);
3503         zero_obj->type = STACK_OBJ;
3504
3505         MONO_INST_NEW (cfg, zero_r8, OP_R8CONST);
3506         zero_r8->type = STACK_R8;
3507         zero_r8->inst_p0 = &r8_0;
3508
3509         /* add a check for this != NULL to inlined methods */
3510         if (is_virtual_call) {
3511                 MONO_INST_NEW (cfg, ins, OP_CHECK_THIS);
3512                 NEW_ARGLOAD (cfg, ins->inst_left, 0);
3513                 ins->cil_code = ip;
3514                 MONO_ADD_INS (bblock, ins);
3515         }
3516
3517         /* we use a spare stack slot in SWITCH and NEWOBJ and others */
3518         stack_start = sp = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * (header->max_stack + 1));
3519
3520         ins_flag = 0;
3521         start_new_bblock = 0;
3522         while (ip < end) {
3523
3524                 if (cfg->method == method)
3525                         real_offset = ip - header->code;
3526                 else
3527                         real_offset = inline_offset;
3528
3529                 if (start_new_bblock) {
3530                         bblock->cil_length = ip - bblock->cil_code;
3531                         if (start_new_bblock == 2) {
3532                                 g_assert (ip == tblock->cil_code);
3533                         } else {
3534                                 GET_BBLOCK (cfg, bbhash, tblock, ip);
3535                         }
3536                         bblock->next_bb = tblock;
3537                         bblock = tblock;
3538                         start_new_bblock = 0;
3539                         for (i = 0; i < bblock->in_scount; ++i) {
3540                                 if (cfg->verbose_level > 3)
3541                                         g_print ("loading %d from temp %d\n", i, (int)bblock->in_stack [i]->inst_c0);
3542                                 NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
3543                                 *sp++ = ins;
3544                         }
3545                         g_slist_free (class_inits);
3546                         class_inits = NULL;
3547                 } else {
3548                         if ((tblock = g_hash_table_lookup (bbhash, ip)) && (tblock != bblock)) {
3549                                 link_bblock (cfg, bblock, tblock);
3550                                 if (sp != stack_start) {
3551                                         handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
3552                                         sp = stack_start;
3553                                 }
3554                                 bblock->next_bb = tblock;
3555                                 bblock = tblock;
3556                                 for (i = 0; i < bblock->in_scount; ++i) {
3557                                         if (cfg->verbose_level > 3)
3558                                                 g_print ("loading %d from temp %d\n", i, (int)bblock->in_stack [i]->inst_c0);
3559                                         NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
3560                                         *sp++ = ins;
3561                                 }
3562                                 g_slist_free (class_inits);
3563                                 class_inits = NULL;
3564                         }
3565                 }
3566
3567                 bblock->real_offset = real_offset;
3568
3569                 if ((cfg->method == method) && cfg->coverage_info) {
3570                         MonoInst *store, *one;
3571                         guint32 cil_offset = ip - header->code;
3572                         cfg->coverage_info->data [cil_offset].cil_code = ip;
3573
3574                         /* TODO: Use an increment here */
3575                         NEW_ICONST (cfg, one, 1);
3576                         one->cil_code = ip;
3577
3578                         NEW_PCONST (cfg, ins, &(cfg->coverage_info->data [cil_offset].count));
3579                         ins->cil_code = ip;
3580
3581                         MONO_INST_NEW (cfg, store, CEE_STIND_I);
3582                         store->cil_code = ip;
3583                         store->inst_left = ins;
3584                         store->inst_right = one;
3585
3586                         MONO_ADD_INS (bblock, store);
3587                 }
3588
3589                 if (cfg->verbose_level > 3)
3590                         g_print ("converting (in B%d: stack: %d) %s", bblock->block_num, (int)(sp - stack_start), mono_disasm_code_one (NULL, method, ip, NULL));
3591
3592                 switch (*ip) {
3593                 case CEE_NOP:
3594                 case CEE_BREAK:
3595                         MONO_INST_NEW (cfg, ins, *ip);
3596                         ins->cil_code = ip++;
3597                         MONO_ADD_INS (bblock, ins);
3598                         break;
3599                 case CEE_LDARG_0:
3600                 case CEE_LDARG_1:
3601                 case CEE_LDARG_2:
3602                 case CEE_LDARG_3:
3603                         CHECK_STACK_OVF (1);
3604                         n = (*ip)-CEE_LDARG_0;
3605                         CHECK_ARG (n);
3606                         NEW_ARGLOAD (cfg, ins, n);
3607                         ins->cil_code = ip++;
3608                         *sp++ = ins;
3609                         break;
3610                 case CEE_LDLOC_0:
3611                 case CEE_LDLOC_1:
3612                 case CEE_LDLOC_2:
3613                 case CEE_LDLOC_3:
3614                         CHECK_STACK_OVF (1);
3615                         n = (*ip)-CEE_LDLOC_0;
3616                         CHECK_LOCAL (n);
3617                         NEW_LOCLOAD (cfg, ins, n);
3618                         ins->cil_code = ip++;
3619                         *sp++ = ins;
3620                         break;
3621                 case CEE_STLOC_0:
3622                 case CEE_STLOC_1:
3623                 case CEE_STLOC_2:
3624                 case CEE_STLOC_3:
3625                         CHECK_STACK (1);
3626                         n = (*ip)-CEE_STLOC_0;
3627                         CHECK_LOCAL (n);
3628                         --sp;
3629                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3630                         NEW_LOCSTORE (cfg, ins, n, *sp);
3631                         ins->cil_code = ip;
3632                         if (ins->opcode == CEE_STOBJ) {
3633                                 NEW_LOCLOADA (cfg, ins, n);
3634                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
3635                         } else
3636                                 MONO_ADD_INS (bblock, ins);
3637                         ++ip;
3638                         inline_costs += 1;
3639                         break;
3640                 case CEE_LDARG_S:
3641                         CHECK_OPSIZE (2);
3642                         CHECK_STACK_OVF (1);
3643                         CHECK_ARG (ip [1]);
3644                         NEW_ARGLOAD (cfg, ins, ip [1]);
3645                         ins->cil_code = ip;
3646                         *sp++ = ins;
3647                         ip += 2;
3648                         break;
3649                 case CEE_LDARGA_S:
3650                         CHECK_OPSIZE (2);
3651                         CHECK_STACK_OVF (1);
3652                         CHECK_ARG (ip [1]);
3653                         NEW_ARGLOADA (cfg, ins, ip [1]);
3654                         ins->cil_code = ip;
3655                         *sp++ = ins;
3656                         ip += 2;
3657                         break;
3658                 case CEE_STARG_S:
3659                         CHECK_OPSIZE (2);
3660                         CHECK_STACK (1);
3661                         --sp;
3662                         CHECK_ARG (ip [1]);
3663                         NEW_ARGSTORE (cfg, ins, ip [1], *sp);
3664                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3665                         ins->cil_code = ip;
3666                         if (ins->opcode == CEE_STOBJ) {
3667                                 NEW_ARGLOADA (cfg, ins, ip [1]);
3668                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
3669                         } else
3670                                 MONO_ADD_INS (bblock, ins);
3671                         ip += 2;
3672                         break;
3673                 case CEE_LDLOC_S:
3674                         CHECK_OPSIZE (2);
3675                         CHECK_STACK_OVF (1);
3676                         CHECK_LOCAL (ip [1]);
3677                         NEW_LOCLOAD (cfg, ins, ip [1]);
3678                         ins->cil_code = ip;
3679                         *sp++ = ins;
3680                         ip += 2;
3681                         break;
3682                 case CEE_LDLOCA_S:
3683                         CHECK_OPSIZE (2);
3684                         CHECK_STACK_OVF (1);
3685                         CHECK_LOCAL (ip [1]);
3686                         NEW_LOCLOADA (cfg, ins, ip [1]);
3687                         ins->cil_code = ip;
3688                         *sp++ = ins;
3689                         ip += 2;
3690                         break;
3691                 case CEE_STLOC_S:
3692                         CHECK_OPSIZE (2);
3693                         CHECK_STACK (1);
3694                         --sp;
3695                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3696                         CHECK_LOCAL (ip [1]);
3697                         NEW_LOCSTORE (cfg, ins, ip [1], *sp);
3698                         ins->cil_code = ip;
3699                         if (ins->opcode == CEE_STOBJ) {
3700                                 NEW_LOCLOADA (cfg, ins, ip [1]);
3701                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
3702                         } else
3703                                 MONO_ADD_INS (bblock, ins);
3704                         ip += 2;
3705                         inline_costs += 1;
3706                         break;
3707                 case CEE_LDNULL:
3708                         CHECK_STACK_OVF (1);
3709                         NEW_PCONST (cfg, ins, NULL);
3710                         ins->cil_code = ip;
3711                         ins->type = STACK_OBJ;
3712                         ++ip;
3713                         *sp++ = ins;
3714                         break;
3715                 case CEE_LDC_I4_M1:
3716                         CHECK_STACK_OVF (1);
3717                         NEW_ICONST (cfg, ins, -1);
3718                         ins->cil_code = ip;
3719                         ++ip;
3720                         *sp++ = ins;
3721                         break;
3722                 case CEE_LDC_I4_0:
3723                 case CEE_LDC_I4_1:
3724                 case CEE_LDC_I4_2:
3725                 case CEE_LDC_I4_3:
3726                 case CEE_LDC_I4_4:
3727                 case CEE_LDC_I4_5:
3728                 case CEE_LDC_I4_6:
3729                 case CEE_LDC_I4_7:
3730                 case CEE_LDC_I4_8:
3731                         CHECK_STACK_OVF (1);
3732                         NEW_ICONST (cfg, ins, (*ip) - CEE_LDC_I4_0);
3733                         ins->cil_code = ip;
3734                         ++ip;
3735                         *sp++ = ins;
3736                         break;
3737                 case CEE_LDC_I4_S:
3738                         CHECK_OPSIZE (2);
3739                         CHECK_STACK_OVF (1);
3740                         ++ip;
3741                         NEW_ICONST (cfg, ins, *((signed char*)ip));
3742                         ins->cil_code = ip;
3743                         ++ip;
3744                         *sp++ = ins;
3745                         break;
3746                 case CEE_LDC_I4:
3747                         CHECK_OPSIZE (5);
3748                         CHECK_STACK_OVF (1);
3749                         NEW_ICONST (cfg, ins, (gint32)read32 (ip + 1));
3750                         ins->cil_code = ip;
3751                         ip += 5;
3752                         *sp++ = ins;
3753                         break;
3754                 case CEE_LDC_I8:
3755                         CHECK_OPSIZE (9);
3756                         CHECK_STACK_OVF (1);
3757                         MONO_INST_NEW (cfg, ins, OP_I8CONST);
3758                         ins->cil_code = ip;
3759                         ins->type = STACK_I8;
3760                         ++ip;
3761                         ins->inst_l = (gint64)read64 (ip);
3762                         ip += 8;
3763                         *sp++ = ins;
3764                         break;
3765                 case CEE_LDC_R4: {
3766                         float *f;
3767                         /* we should really allocate this only late in the compilation process */
3768                         mono_domain_lock (cfg->domain);
3769                         f = mono_mempool_alloc (cfg->domain->mp, sizeof (float));
3770                         mono_domain_unlock (cfg->domain);
3771                         CHECK_OPSIZE (5);
3772                         CHECK_STACK_OVF (1);
3773                         MONO_INST_NEW (cfg, ins, OP_R4CONST);
3774                         ins->type = STACK_R8;
3775                         ++ip;
3776                         readr4 (ip, f);
3777                         ins->inst_p0 = f;
3778
3779                         ip += 4;
3780                         *sp++ = ins;
3781                         break;
3782                 }
3783                 case CEE_LDC_R8: {
3784                         double *d;
3785                         mono_domain_lock (cfg->domain);
3786                         d = mono_mempool_alloc (cfg->domain->mp, sizeof (double));
3787                         mono_domain_unlock (cfg->domain);
3788                         CHECK_OPSIZE (9);
3789                         CHECK_STACK_OVF (1);
3790                         MONO_INST_NEW (cfg, ins, OP_R8CONST);
3791                         ins->type = STACK_R8;
3792                         ++ip;
3793                         readr8 (ip, d);
3794                         ins->inst_p0 = d;
3795
3796                         ip += 8;
3797                         *sp++ = ins;
3798                         break;
3799                 }
3800                 case CEE_DUP: {
3801                         MonoInst *temp, *store;
3802                         CHECK_STACK (1);
3803                         CHECK_STACK_OVF (1);
3804                         sp--;
3805                         ins = *sp;
3806
3807                         /*
3808                          * small optimization: if the loaded value was from a local already,
3809                          * just load it twice.
3810                          */
3811                         if (ins->ssa_op == MONO_SSA_LOAD &&
3812                             (ins->inst_i0->opcode == OP_LOCAL || ins->inst_i0->opcode == OP_ARG)) {
3813                                 sp++;
3814                                 MONO_INST_NEW (cfg, temp, 0);
3815                                 *temp = *ins;
3816                                 temp->cil_code = ip;
3817                                 *sp++ = temp;
3818                         } else {
3819                                 temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
3820                                 temp->flags |= MONO_INST_IS_TEMP;
3821                                 temp->cil_code = ip;
3822                                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
3823                                 store->cil_code = ip;
3824                                 if (store->opcode == CEE_STOBJ) {
3825                                         NEW_TEMPLOADA (cfg, store, temp->inst_c0);
3826                                         handle_stobj (cfg, bblock, store, sp [0], sp [0]->cil_code, store->klass, TRUE, FALSE);
3827                                 } else {
3828                                         MONO_ADD_INS (bblock, store);
3829                                 }
3830                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
3831                                 *sp++ = ins;
3832                                 ins->cil_code = ip;
3833                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
3834                                 *sp++ = ins;
3835                                 ins->cil_code = ip;
3836                         }
3837                         ++ip;
3838                         inline_costs += 2;
3839                         break;
3840                 }
3841                 case CEE_POP:
3842                         CHECK_STACK (1);
3843                         MONO_INST_NEW (cfg, ins, CEE_POP);
3844                         MONO_ADD_INS (bblock, ins);
3845                         ins->cil_code = ip++;
3846                         --sp;
3847                         ins->inst_i0 = *sp;
3848                         break;
3849                 case CEE_JMP:
3850                         CHECK_OPSIZE (5);
3851                         if (stack_start != sp)
3852                                 goto unverified;
3853                         MONO_INST_NEW (cfg, ins, CEE_JMP);
3854                         token = read32 (ip + 1);
3855                         /* FIXME: check the signature matches */
3856                         cmethod = mini_get_method (method, token, NULL, generic_context);
3857
3858                         if (!cmethod)
3859                                 goto load_error;
3860
3861                         if (mono_use_security_manager) {
3862                                 check_linkdemand (cfg, method, cmethod, bblock, ip);
3863                         }
3864
3865                         ins->inst_p0 = cmethod;
3866                         MONO_ADD_INS (bblock, ins);
3867                         ip += 5;
3868                         start_new_bblock = 1;
3869                         break;
3870                 case CEE_CALLI:
3871                 case CEE_CALL:
3872                 case CEE_CALLVIRT: {
3873                         MonoInst *addr = NULL;
3874                         MonoMethodSignature *fsig = NULL;
3875                         int temp, array_rank = 0;
3876                         int virtual = *ip == CEE_CALLVIRT;
3877
3878                         CHECK_OPSIZE (5);
3879                         token = read32 (ip + 1);
3880
3881                         if (*ip == CEE_CALLI) {
3882                                 cmethod = NULL;
3883                                 CHECK_STACK (1);
3884                                 --sp;
3885                                 addr = *sp;
3886                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3887                                         fsig = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
3888                                 else
3889                                         fsig = mono_metadata_parse_signature (image, token);
3890
3891                                 n = fsig->param_count + fsig->hasthis;
3892                         } else {
3893                                 if (method->wrapper_type != MONO_WRAPPER_NONE) {
3894                                         cmethod =  (MonoMethod *)mono_method_get_wrapper_data (method, token);
3895                                 } else if (constrained_call) {
3896                                         cmethod = mono_get_method_constrained (image, token, constrained_call, generic_context);
3897                                         cmethod = mono_get_inflated_method (cmethod);
3898                                 } else {
3899                                         cmethod = mini_get_method (method, token, NULL, generic_context);
3900                                 }
3901
3902                                 if (!cmethod)
3903                                         goto load_error;
3904
3905                                 if (!virtual && (cmethod->flags & METHOD_ATTRIBUTE_ABSTRACT))
3906                                         /* MS.NET seems to silently convert this to a callvirt */
3907                                         virtual = 1;
3908
3909                                 if (!cmethod->klass->inited)
3910                                         mono_class_init (cmethod->klass);
3911
3912                                 if (mono_method_signature (cmethod)->pinvoke) {
3913                                         MonoMethod *wrapper = mono_marshal_get_native_wrapper (cmethod);
3914                                         fsig = mono_method_signature (wrapper);
3915                                 } else if (constrained_call) {
3916                                         fsig = mono_method_signature (cmethod);
3917                                 } else {
3918                                         fsig = mono_method_get_signature_full (cmethod, image, token, generic_context);
3919                                 }
3920
3921                                 n = fsig->param_count + fsig->hasthis;
3922
3923                                 if (mono_use_security_manager) {
3924                                         check_linkdemand (cfg, method, cmethod, bblock, ip);
3925                                 }
3926
3927                                 if (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL &&
3928                                     mini_class_is_system_array (cmethod->klass)) {
3929                                         array_rank = cmethod->klass->rank;
3930                                 }
3931
3932                                 if (cmethod->string_ctor)
3933                                         g_assert_not_reached ();
3934
3935                         }
3936
3937                         if (!virtual) {
3938                                 mono_get_got_var (cfg);
3939                         } else {
3940                                 /* code in inssel.brg might transform a virtual call to a normal call */
3941                                 if (!(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
3942                                         ((cmethod->flags & METHOD_ATTRIBUTE_FINAL) &&
3943                                          cmethod->wrapper_type != MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK))
3944                                         mono_get_got_var (cfg);
3945                         }
3946
3947                         if (cmethod && cmethod->klass->generic_container) {
3948                                 // G_BREAKPOINT ();
3949                                 goto unverified;
3950                         }
3951
3952                         CHECK_STACK (n);
3953
3954                         //g_assert (!virtual || fsig->hasthis);
3955
3956                         sp -= n;
3957
3958                         if (constrained_call) {
3959                                 /*
3960                                  * We have the `constrained.' prefix opcode.
3961                                  */
3962                                 if (constrained_call->valuetype && !cmethod->klass->valuetype) {
3963                                         MonoInst *load;
3964                                         /*
3965                                          * The type parameter is instantiated as a valuetype,
3966                                          * but that type doesn't override the method we're
3967                                          * calling, so we need to box `this'.
3968                                          * sp [0] is a pointer to the data: we need the value
3969                                          * in handle_box (), so load it here.
3970                                          */
3971                                         MONO_INST_NEW (cfg, load, mono_type_to_ldind (&constrained_call->byval_arg));
3972                                         type_to_eval_stack_type (&constrained_call->byval_arg, load);
3973                                         load->cil_code = ip;
3974                                         load->inst_left = sp [0];
3975                                         sp [0] = handle_box (cfg, bblock, load, ip, constrained_call);
3976                                 } else if (!constrained_call->valuetype) {
3977                                         MonoInst *ins;
3978
3979                                         /*
3980                                          * The type parameter is instantiated as a reference
3981                                          * type.  We have a managed pointer on the stack, so
3982                                          * we need to dereference it here.
3983                                          */
3984
3985                                         MONO_INST_NEW (cfg, ins, CEE_LDIND_REF);
3986                                         ins->cil_code = ip;
3987                                         ins->inst_i0 = sp [0];
3988                                         ins->type = STACK_OBJ;
3989                                         sp [0] = ins;
3990                                 } else if (cmethod->klass->valuetype)
3991                                         virtual = 0;
3992                                 constrained_call = NULL;
3993                         }
3994
3995                         if (*ip != CEE_CALLI && check_call_signature (cfg, fsig, sp)) {
3996                                 // G_BREAKPOINT ();
3997                                 goto unverified;
3998                         }
3999
4000                         if (cmethod && virtual &&
4001                             (cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) &&
4002                             !((cmethod->flags & METHOD_ATTRIBUTE_FINAL) &&
4003                               cmethod->wrapper_type != MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK) &&
4004                             mono_method_signature (cmethod)->generic_param_count) {
4005                                 MonoInst *this_temp, *store;
4006                                 MonoInst *iargs [3];
4007
4008                                 g_assert (mono_method_signature (cmethod)->is_inflated);
4009
4010                                 this_temp = mono_compile_create_var (cfg, type_from_stack_type (sp [0]), OP_LOCAL);
4011                                 this_temp->cil_code = ip;
4012                                 NEW_TEMPSTORE (cfg, store, this_temp->inst_c0, sp [0]);
4013
4014                                 store->cil_code = ip;
4015                                 MONO_ADD_INS (bblock, store);
4016
4017                                 NEW_TEMPLOAD (cfg, iargs [0], this_temp->inst_c0);
4018                                 NEW_PCONST (cfg, iargs [1], cmethod);
4019                                 NEW_PCONST (cfg, iargs [2], ((MonoMethodInflated *) cmethod)->context);
4020                                 temp = mono_emit_jit_icall (cfg, bblock, helper_compile_generic_method, iargs, ip);
4021
4022                                 NEW_TEMPLOAD (cfg, addr, temp);
4023                                 NEW_TEMPLOAD (cfg, sp [0], this_temp->inst_c0);
4024
4025                                 if ((temp = mono_emit_calli (cfg, bblock, fsig, sp, addr, ip)) != -1) {
4026                                         NEW_TEMPLOAD (cfg, *sp, temp);
4027                                         sp++;
4028                                 }
4029
4030                                 ip += 5;
4031                                 break;
4032                         }
4033
4034                         if ((ins_flag & MONO_INST_TAILCALL) && cmethod && (*ip == CEE_CALL) &&
4035                                  (mono_metadata_signature_equal (mono_method_signature (method), mono_method_signature (cmethod)))) {
4036                                 int i;
4037                                 /* FIXME: This assumes the two methods has the same number and type of arguments */
4038                                 for (i = 0; i < n; ++i) {
4039                                         /* Check if argument is the same */
4040                                         NEW_ARGLOAD (cfg, ins, i);
4041                                         if ((ins->opcode == sp [i]->opcode) && (ins->inst_i0 == sp [i]->inst_i0))
4042                                                 continue;
4043
4044                                         /* Prevent argument from being register allocated */
4045                                         arg_array [i]->flags |= MONO_INST_VOLATILE;
4046                                         NEW_ARGSTORE (cfg, ins, i, sp [i]);
4047                                         ins->cil_code = ip;
4048                                         if (ins->opcode == CEE_STOBJ) {
4049                                                 NEW_ARGLOADA (cfg, ins, i);
4050                                                 handle_stobj (cfg, bblock, ins, sp [i], sp [i]->cil_code, ins->klass, FALSE, FALSE);
4051                                         }
4052                                         else
4053                                                 MONO_ADD_INS (bblock, ins);
4054                                 }
4055                                 MONO_INST_NEW (cfg, ins, CEE_JMP);
4056                                 ins->cil_code = ip;
4057                                 ins->inst_p0 = cmethod;
4058                                 ins->inst_p1 = arg_array [0];
4059                                 MONO_ADD_INS (bblock, ins);
4060                                 link_bblock (cfg, bblock, end_bblock);
4061                                 start_new_bblock = 1;
4062                                 /* skip CEE_RET as well */
4063                                 ip += 6;
4064                                 ins_flag = 0;
4065                                 break;
4066                         }
4067                         if (cmethod && (cfg->opt & MONO_OPT_INTRINS) && (ins = mini_get_inst_for_method (cfg, cmethod, fsig, sp))) {
4068                                 ins->cil_code = ip;
4069
4070                                 if (MONO_TYPE_IS_VOID (fsig->ret)) {
4071                                         MONO_ADD_INS (bblock, ins);
4072                                 } else {
4073                                         type_to_eval_stack_type (fsig->ret, ins);
4074                                         *sp = ins;
4075                                         sp++;
4076                                 }
4077
4078                                 ip += 5;
4079                                 break;
4080                         }
4081
4082                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4083
4084                         if ((cfg->opt & MONO_OPT_INLINE) && cmethod &&
4085                             (!virtual || !(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) || (cmethod->flags & METHOD_ATTRIBUTE_FINAL)) &&
4086                             mono_method_check_inlining (cfg, cmethod) &&
4087                                  !g_list_find (dont_inline, cmethod)) {
4088                                 int costs;
4089                                 MonoBasicBlock *ebblock;
4090                                 gboolean allways = FALSE;
4091
4092                                 if ((cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4093                                         (cmethod->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4094                                         cmethod = mono_marshal_get_native_wrapper (cmethod);
4095                                         allways = TRUE;
4096                                 }
4097
4098                                 if ((costs = inline_method (cfg, cmethod, fsig, bblock, sp, ip, real_offset, dont_inline, &ebblock, allways))) {
4099                                         ip += 5;
4100                                         real_offset += 5;
4101
4102                                         GET_BBLOCK (cfg, bbhash, bblock, ip);
4103                                         ebblock->next_bb = bblock;
4104                                         link_bblock (cfg, ebblock, bblock);
4105
4106                                         if (!MONO_TYPE_IS_VOID (fsig->ret))
4107                                                 sp++;
4108
4109                                         /* indicates start of a new block, and triggers a load of all
4110                                            stack arguments at bb boundarie */
4111                                         bblock = ebblock;
4112
4113                                         inline_costs += costs;
4114                                         break;
4115                                 }
4116                         }
4117
4118                         inline_costs += 10 * num_calls++;
4119
4120                         /* tail recursion elimination */
4121                         if ((cfg->opt & MONO_OPT_TAILC) && *ip == CEE_CALL && cmethod == method && ip [5] == CEE_RET) {
4122                                 gboolean has_vtargs = FALSE;
4123                                 int i;
4124
4125                                 /* keep it simple */
4126                                 for (i =  fsig->param_count - 1; i >= 0; i--) {
4127                                         if (MONO_TYPE_ISSTRUCT (mono_method_signature (cmethod)->params [i]))
4128                                                 has_vtargs = TRUE;
4129                                 }
4130
4131                                 if (!has_vtargs) {
4132                                         for (i = 0; i < n; ++i) {
4133                                                 NEW_ARGSTORE (cfg, ins, i, sp [i]);
4134                                                 ins->cil_code = ip;
4135                                                 MONO_ADD_INS (bblock, ins);
4136                                         }
4137                                         MONO_INST_NEW (cfg, ins, CEE_BR);
4138                                         ins->cil_code = ip;
4139                                         MONO_ADD_INS (bblock, ins);
4140                                         tblock = start_bblock->out_bb [0];
4141                                         link_bblock (cfg, bblock, tblock);
4142                                         ins->inst_target_bb = tblock;
4143                                         start_new_bblock = 1;
4144
4145                                         /* skip the CEE_RET, too */
4146                                         if (ip_in_bb (cfg, bblock, ip + 5))
4147                                                 ip += 6;
4148                                         else
4149                                                 ip += 5;
4150
4151                                         break;
4152                                 }
4153                         }
4154
4155                         if (*ip == CEE_CALLI) {
4156
4157                                 if ((temp = mono_emit_calli (cfg, bblock, fsig, sp, addr, ip)) != -1) {
4158                                         NEW_TEMPLOAD (cfg, *sp, temp);
4159                                         sp++;
4160                                 }
4161
4162                         } else if (array_rank) {
4163                                 MonoInst *addr;
4164
4165                                 if (strcmp (cmethod->name, "Set") == 0) { /* array Set */
4166                                         if (sp [fsig->param_count]->type == STACK_OBJ) {
4167                                                 MonoInst *iargs [2];
4168                                                 MonoInst *array, *to_store, *store;
4169
4170                                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4171
4172                                                 array = mono_compile_create_var (cfg, type_from_stack_type (sp [0]), OP_LOCAL);
4173                                                 NEW_TEMPSTORE (cfg, store, array->inst_c0, sp [0]);
4174                                                 store->cil_code = ip;
4175                                                 MONO_ADD_INS (bblock, store);
4176                                                 NEW_TEMPLOAD (cfg, iargs [0], array->inst_c0);
4177
4178                                                 to_store = mono_compile_create_var (cfg, type_from_stack_type (sp [fsig->param_count]), OP_LOCAL);
4179                                                 NEW_TEMPSTORE (cfg, store, to_store->inst_c0, sp [fsig->param_count]);
4180                                                 store->cil_code = ip;
4181                                                 MONO_ADD_INS (bblock, store);
4182                                                 NEW_TEMPLOAD (cfg, iargs [1], to_store->inst_c0);
4183
4184                                                 /*
4185                                                  * We first save the args for the call so that the args are copied to the stack
4186                                                  * and a new instruction tree for them is created. If we don't do this,
4187                                                  * the same MonoInst is added to two different trees and this is not
4188                                                  * allowed by burg.
4189                                                  */
4190                                                 mono_emit_jit_icall (cfg, bblock, helper_stelem_ref_check, iargs, ip);
4191
4192                                                 NEW_TEMPLOAD (cfg, sp [0], array->inst_c0);
4193                                                 NEW_TEMPLOAD (cfg, sp [fsig->param_count], to_store->inst_c0);
4194                                         }
4195
4196                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, TRUE);
4197                                         NEW_INDSTORE (cfg, ins, addr, sp [fsig->param_count], fsig->params [fsig->param_count - 1]);
4198                                         ins->cil_code = ip;
4199                                         if (ins->opcode == CEE_STOBJ) {
4200                                                 handle_stobj (cfg, bblock, addr, sp [fsig->param_count], ip, mono_class_from_mono_type (fsig->params [fsig->param_count-1]), FALSE, FALSE);
4201                                         } else {
4202                                                 MONO_ADD_INS (bblock, ins);
4203                                         }
4204
4205                                 } else if (strcmp (cmethod->name, "Get") == 0) { /* array Get */
4206                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, FALSE);
4207                                         NEW_INDLOAD (cfg, ins, addr, fsig->ret);
4208                                         ins->cil_code = ip;
4209
4210                                         *sp++ = ins;
4211                                 } else if (strcmp (cmethod->name, "Address") == 0) { /* array Address */
4212                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, FALSE);
4213                                         *sp++ = addr;
4214                                 } else {
4215                                         g_assert_not_reached ();
4216                                 }
4217
4218                         } else {
4219                                 if (ip_in_bb (cfg, bblock, ip + 5)
4220                                     && (!MONO_TYPE_ISSTRUCT (fsig->ret))
4221                                     && (!MONO_TYPE_IS_VOID (fsig->ret) || cmethod->string_ctor)
4222                                     && (CODE_IS_STLOC (ip + 5) || ip [5] == CEE_POP || ip [5] == CEE_RET)) {
4223                                         /* no need to spill */
4224                                         ins = (MonoInst*)mono_emit_method_call (cfg, bblock, cmethod, fsig, sp, ip, virtual ? sp [0] : NULL);
4225                                         *sp++ = ins;
4226                                 } else {
4227                                         if ((temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, virtual ? sp [0] : NULL)) != -1) {
4228                                                 NEW_TEMPLOAD (cfg, *sp, temp);
4229                                                 sp++;
4230                                         }
4231                                 }
4232                         }
4233
4234                         ip += 5;
4235                         break;
4236                 }
4237                 case CEE_RET:
4238                         if (cfg->method != method) {
4239                                 /* return from inlined methode */
4240                                 if (return_var) {
4241                                         MonoInst *store;
4242                                         CHECK_STACK (1);
4243                                         --sp;
4244                                         //g_assert (returnvar != -1);
4245                                         NEW_TEMPSTORE (cfg, store, return_var->inst_c0, *sp);
4246                                         store->cil_code = sp [0]->cil_code;
4247                                         if (store->opcode == CEE_STOBJ) {
4248                                                 g_assert_not_reached ();
4249                                                 NEW_TEMPLOADA (cfg, store, return_var->inst_c0);
4250                                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, return_var->klass, FALSE, FALSE);
4251                                         } else
4252                                                 MONO_ADD_INS (bblock, store);
4253                                 }
4254                         } else {
4255                                 if (cfg->ret) {
4256                                         g_assert (!return_var);
4257                                         CHECK_STACK (1);
4258                                         --sp;
4259                                         MONO_INST_NEW (cfg, ins, CEE_NOP);
4260                                         ins->opcode = mono_type_to_stind (mono_method_signature (method)->ret);
4261                                         if (ins->opcode == CEE_STOBJ) {
4262                                                 NEW_RETLOADA (cfg, ins);
4263                                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
4264                                         } else {
4265                                                 ins->opcode = OP_SETRET;
4266                                                 ins->cil_code = ip;
4267                                                 ins->inst_i0 = *sp;;
4268                                                 ins->inst_i1 = NULL;
4269                                                 MONO_ADD_INS (bblock, ins);
4270                                         }
4271                                 }
4272                         }
4273                         if (sp != stack_start)
4274                                 goto unverified;
4275                         MONO_INST_NEW (cfg, ins, CEE_BR);
4276                         ins->cil_code = ip++;
4277                         ins->inst_target_bb = end_bblock;
4278                         MONO_ADD_INS (bblock, ins);
4279                         link_bblock (cfg, bblock, end_bblock);
4280                         start_new_bblock = 1;
4281                         break;
4282                 case CEE_BR_S:
4283                         CHECK_OPSIZE (2);
4284                         MONO_INST_NEW (cfg, ins, CEE_BR);
4285                         ins->cil_code = ip++;
4286                         MONO_ADD_INS (bblock, ins);
4287                         target = ip + 1 + (signed char)(*ip);
4288                         ++ip;
4289                         GET_BBLOCK (cfg, bbhash, tblock, target);
4290                         link_bblock (cfg, bblock, tblock);
4291                         CHECK_BBLOCK (target, ip, tblock);
4292                         ins->inst_target_bb = tblock;
4293                         if (sp != stack_start) {
4294                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4295                                 sp = stack_start;
4296                         }
4297                         start_new_bblock = 1;
4298                         inline_costs += 10;
4299                         break;
4300                 case CEE_BRFALSE_S:
4301                 case CEE_BRTRUE_S:
4302                         CHECK_OPSIZE (2);
4303                         CHECK_STACK (1);
4304                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
4305                         ins->cil_code = ip++;
4306                         target = ip + 1 + *(signed char*)ip;
4307                         ip++;
4308                         ADD_UNCOND (ins->opcode == CEE_BRTRUE);
4309                         if (sp != stack_start) {
4310                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4311                                 sp = stack_start;
4312                         }
4313                         inline_costs += 10;
4314                         break;
4315                 case CEE_BEQ_S:
4316                 case CEE_BGE_S:
4317                 case CEE_BGT_S:
4318                 case CEE_BLE_S:
4319                 case CEE_BLT_S:
4320                 case CEE_BNE_UN_S:
4321                 case CEE_BGE_UN_S:
4322                 case CEE_BGT_UN_S:
4323                 case CEE_BLE_UN_S:
4324                 case CEE_BLT_UN_S:
4325                         CHECK_OPSIZE (2);
4326                         CHECK_STACK (2);
4327                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
4328                         ins->cil_code = ip++;
4329                         target = ip + 1 + *(signed char*)ip;
4330                         ip++;
4331                         ADD_BINCOND (NULL);
4332                         if (sp != stack_start) {
4333                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4334                                 sp = stack_start;
4335                         }
4336                         inline_costs += 10;
4337                         break;
4338                 case CEE_BR:
4339                         CHECK_OPSIZE (5);
4340                         MONO_INST_NEW (cfg, ins, CEE_BR);
4341                         ins->cil_code = ip++;
4342                         MONO_ADD_INS (bblock, ins);
4343                         target = ip + 4 + (gint32)read32(ip);
4344                         ip += 4;
4345                         GET_BBLOCK (cfg, bbhash, tblock, target);
4346                         link_bblock (cfg, bblock, tblock);
4347                         CHECK_BBLOCK (target, ip, tblock);
4348                         ins->inst_target_bb = tblock;
4349                         if (sp != stack_start) {
4350                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4351                                 sp = stack_start;
4352                         }
4353                         start_new_bblock = 1;
4354                         inline_costs += 10;
4355                         break;
4356                 case CEE_BRFALSE:
4357                 case CEE_BRTRUE:
4358                         CHECK_OPSIZE (5);
4359                         CHECK_STACK (1);
4360                         MONO_INST_NEW (cfg, ins, *ip);
4361                         ins->cil_code = ip++;
4362                         target = ip + 4 + (gint32)read32(ip);
4363                         ip += 4;
4364                         ADD_UNCOND(ins->opcode == CEE_BRTRUE);
4365                         if (sp != stack_start) {
4366                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4367                                 sp = stack_start;
4368                         }
4369                         inline_costs += 10;
4370                         break;
4371                 case CEE_BEQ:
4372                 case CEE_BGE:
4373                 case CEE_BGT:
4374                 case CEE_BLE:
4375                 case CEE_BLT:
4376                 case CEE_BNE_UN:
4377                 case CEE_BGE_UN:
4378                 case CEE_BGT_UN:
4379                 case CEE_BLE_UN:
4380                 case CEE_BLT_UN:
4381                         CHECK_OPSIZE (5);
4382                         CHECK_STACK (2);
4383                         MONO_INST_NEW (cfg, ins, *ip);
4384                         ins->cil_code = ip++;
4385                         target = ip + 4 + (gint32)read32(ip);
4386                         ip += 4;
4387                         ADD_BINCOND(NULL);
4388                         if (sp != stack_start) {
4389                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4390                                 sp = stack_start;
4391                         }
4392                         inline_costs += 10;
4393                         break;
4394                 case CEE_SWITCH:
4395                         CHECK_OPSIZE (5);
4396                         CHECK_STACK (1);
4397                         n = read32 (ip + 1);
4398                         MONO_INST_NEW (cfg, ins, *ip);
4399                         --sp;
4400                         ins->inst_left = *sp;
4401                         if ((ins->inst_left->type != STACK_I4) && (ins->inst_left->type != STACK_PTR))
4402                                 goto unverified;
4403                         ins->cil_code = ip;
4404                         ip += 5;
4405                         CHECK_OPSIZE (n * sizeof (guint32));
4406                         target = ip + n * sizeof (guint32);
4407                         MONO_ADD_INS (bblock, ins);
4408                         GET_BBLOCK (cfg, bbhash, tblock, target);
4409                         link_bblock (cfg, bblock, tblock);
4410                         ins->klass = GUINT_TO_POINTER (n);
4411                         ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (n + 1));
4412                         ins->inst_many_bb [n] = tblock;
4413
4414                         for (i = 0; i < n; ++i) {
4415                                 GET_BBLOCK (cfg, bbhash, tblock, target + (gint32)read32(ip));
4416                                 link_bblock (cfg, bblock, tblock);
4417                                 ins->inst_many_bb [i] = tblock;
4418                                 ip += 4;
4419                         }
4420                         if (sp != stack_start) {
4421                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
4422                                 sp = stack_start;
4423                         }
4424                         /* Needed by the code generated in inssel.brg */
4425                         mono_get_got_var (cfg);
4426                         inline_costs += 20;
4427                         break;
4428                 case CEE_LDIND_I1:
4429                 case CEE_LDIND_U1:
4430                 case CEE_LDIND_I2:
4431                 case CEE_LDIND_U2:
4432                 case CEE_LDIND_I4:
4433                 case CEE_LDIND_U4:
4434                 case CEE_LDIND_I8:
4435                 case CEE_LDIND_I:
4436                 case CEE_LDIND_R4:
4437                 case CEE_LDIND_R8:
4438                 case CEE_LDIND_REF:
4439                         CHECK_STACK (1);
4440                         MONO_INST_NEW (cfg, ins, *ip);
4441                         ins->cil_code = ip;
4442                         --sp;
4443                         ins->inst_i0 = *sp;
4444                         *sp++ = ins;
4445                         ins->type = ldind_type [*ip - CEE_LDIND_I1];
4446                         ins->flags |= ins_flag;
4447                         ins_flag = 0;
4448                         ++ip;
4449                         break;
4450                 case CEE_STIND_REF:
4451                 case CEE_STIND_I1:
4452                 case CEE_STIND_I2:
4453                 case CEE_STIND_I4:
4454                 case CEE_STIND_I8:
4455                 case CEE_STIND_R4:
4456                 case CEE_STIND_R8:
4457                         CHECK_STACK (2);
4458                         MONO_INST_NEW (cfg, ins, *ip);
4459                         ins->cil_code = ip++;
4460                         sp -= 2;
4461                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4462                         MONO_ADD_INS (bblock, ins);
4463                         ins->inst_i0 = sp [0];
4464                         ins->inst_i1 = sp [1];
4465                         ins->flags |= ins_flag;
4466                         ins_flag = 0;
4467                         inline_costs += 1;
4468                         break;
4469                 case CEE_MUL:
4470                         CHECK_STACK (2);
4471                         ADD_BINOP (*ip);
4472
4473 #ifdef MONO_ARCH_NO_EMULATE_MUL_IMM
4474                         /* FIXME: This breaks with ssapre (mono -O=ssapre loader.exe) */
4475                         if ((ins->inst_right->opcode == OP_ICONST) && !(cfg->opt & MONO_OPT_SSAPRE)) {
4476                                 switch (ins->opcode) {
4477                                 case CEE_MUL:
4478                                         ins->opcode = OP_IMUL_IMM;
4479                                         ins->inst_imm = ins->inst_right->inst_c0;
4480                                         break;
4481                                 default:
4482                                         g_assert_not_reached ();
4483                                 }
4484                         }
4485 #endif
4486
4487                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
4488                                 --sp;
4489                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
4490                                 mono_get_got_var (cfg);
4491                         }
4492                         ip++;
4493                         break;
4494                 case CEE_ADD:
4495                 case CEE_SUB:
4496                 case CEE_DIV:
4497                 case CEE_DIV_UN:
4498                 case CEE_REM:
4499                 case CEE_REM_UN:
4500                 case CEE_AND:
4501                 case CEE_OR:
4502                 case CEE_XOR:
4503                 case CEE_SHL:
4504                 case CEE_SHR:
4505                 case CEE_SHR_UN:
4506                         CHECK_STACK (2);
4507                         ADD_BINOP (*ip);
4508                         /* special case that gives a nice speedup and happens to workaorund a ppc jit but (for the release)
4509                          * later apply the speedup to the left shift as well
4510                          * See BUG# 57957.
4511                          */
4512                         if ((ins->opcode == OP_LSHR_UN) && (ins->type == STACK_I8)
4513                                         && (ins->inst_right->opcode == OP_ICONST) && (ins->inst_right->inst_c0 == 32)) {
4514                                 ins->opcode = OP_LONG_SHRUN_32;
4515                                 /*g_print ("applied long shr speedup to %s\n", cfg->method->name);*/
4516                                 ip++;
4517                                 break;
4518                         }
4519                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
4520                                 --sp;
4521                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
4522                                 mono_get_got_var (cfg);
4523                         }
4524                         ip++;
4525                         break;
4526                 case CEE_NEG:
4527                 case CEE_NOT:
4528                 case CEE_CONV_I1:
4529                 case CEE_CONV_I2:
4530                 case CEE_CONV_I4:
4531                 case CEE_CONV_R4:
4532                 case CEE_CONV_R8:
4533                 case CEE_CONV_U4:
4534                 case CEE_CONV_I8:
4535                 case CEE_CONV_U8:
4536                 case CEE_CONV_OVF_I8:
4537                 case CEE_CONV_OVF_U8:
4538                 case CEE_CONV_R_UN:
4539                         CHECK_STACK (1);
4540                         ADD_UNOP (*ip);
4541                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
4542                                 --sp;
4543                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
4544                                 mono_get_got_var (cfg);
4545                         }
4546                         ip++;
4547                         break;
4548                 case CEE_CONV_OVF_I4:
4549                 case CEE_CONV_OVF_I1:
4550                 case CEE_CONV_OVF_I2:
4551                 case CEE_CONV_OVF_I:
4552                 case CEE_CONV_OVF_U:
4553                         CHECK_STACK (1);
4554
4555                         if (sp [-1]->type == STACK_R8) {
4556                                 ADD_UNOP (CEE_CONV_OVF_I8);
4557                                 ADD_UNOP (*ip);
4558                         } else {
4559                                 ADD_UNOP (*ip);
4560                         }
4561
4562                         ip++;
4563                         break;
4564                 case CEE_CONV_OVF_U1:
4565                 case CEE_CONV_OVF_U2:
4566                 case CEE_CONV_OVF_U4:
4567                         CHECK_STACK (1);
4568
4569                         if (sp [-1]->type == STACK_R8) {
4570                                 ADD_UNOP (CEE_CONV_OVF_U8);
4571                                 ADD_UNOP (*ip);
4572                         } else {
4573                                 ADD_UNOP (*ip);
4574                         }
4575
4576                         ip++;
4577                         break;
4578                 case CEE_CONV_OVF_I1_UN:
4579                 case CEE_CONV_OVF_I2_UN:
4580                 case CEE_CONV_OVF_I4_UN:
4581                 case CEE_CONV_OVF_I8_UN:
4582                 case CEE_CONV_OVF_U1_UN:
4583                 case CEE_CONV_OVF_U2_UN:
4584                 case CEE_CONV_OVF_U4_UN:
4585                 case CEE_CONV_OVF_U8_UN:
4586                 case CEE_CONV_OVF_I_UN:
4587                 case CEE_CONV_OVF_U_UN:
4588                         CHECK_STACK (1);
4589                         ADD_UNOP (*ip);
4590                         ip++;
4591                         break;
4592                 case CEE_CPOBJ:
4593                         CHECK_OPSIZE (5);
4594                         CHECK_STACK (2);
4595                         token = read32 (ip + 1);
4596                         klass = mini_get_class (method, token, generic_context);
4597                         if (!klass)
4598                                 goto load_error;
4599                         sp -= 2;
4600                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
4601                                 MonoInst *store, *load;
4602                                 MONO_INST_NEW (cfg, load, CEE_LDIND_REF);
4603                                 load->cil_code = ip;
4604                                 load->inst_i0 = sp [1];
4605                                 load->type = STACK_OBJ;
4606                                 load->flags |= ins_flag;
4607                                 MONO_INST_NEW (cfg, store, CEE_STIND_REF);
4608                                 store->cil_code = ip;
4609                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4610                                 MONO_ADD_INS (bblock, store);
4611                                 store->inst_i0 = sp [0];
4612                                 store->inst_i1 = load;
4613                                 store->flags |= ins_flag;
4614                         } else {
4615                                 n = mono_class_value_size (klass, NULL);
4616                                 if ((cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 5) {
4617                                         MonoInst *copy;
4618                                         MONO_INST_NEW (cfg, copy, OP_MEMCPY);
4619                                         copy->inst_left = sp [0];
4620                                         copy->inst_right = sp [1];
4621                                         copy->cil_code = ip;
4622                                         copy->unused = n;
4623                                         MONO_ADD_INS (bblock, copy);
4624                                 } else {
4625                                         MonoMethod *memcpy_method = get_memcpy_method ();
4626                                         MonoInst *iargs [3];
4627                                         iargs [0] = sp [0];
4628                                         iargs [1] = sp [1];
4629                                         NEW_ICONST (cfg, iargs [2], n);
4630                                         iargs [2]->cil_code = ip;
4631
4632                                         mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
4633                                 }
4634                         }
4635                         ins_flag = 0;
4636                         ip += 5;
4637                         break;
4638                 case CEE_LDOBJ: {
4639                         MonoInst *iargs [3];
4640                         int loc_index = -1;
4641                         int stloc_len = 0;
4642                         CHECK_OPSIZE (5);
4643                         CHECK_STACK (1);
4644                         --sp;
4645                         token = read32 (ip + 1);
4646                         klass = mini_get_class (method, token, generic_context);
4647                         if (!klass)
4648                                 goto load_error;
4649                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
4650                                 MONO_INST_NEW (cfg, ins, CEE_LDIND_REF);
4651                                 ins->cil_code = ip;
4652                                 ins->inst_i0 = sp [0];
4653                                 ins->type = STACK_OBJ;
4654                                 ins->flags |= ins_flag;
4655                                 ins_flag = 0;
4656                                 *sp++ = ins;
4657                                 ip += 5;
4658                                 break;
4659                         }
4660
4661                         /* Optimize the common ldobj+stloc combination */
4662                         switch (ip [5]) {
4663                         case CEE_STLOC_S:
4664                                 loc_index = ip [6];
4665                                 stloc_len = 2;
4666                                 break;
4667                         case CEE_STLOC_0:
4668                         case CEE_STLOC_1:
4669                         case CEE_STLOC_2:
4670                         case CEE_STLOC_3:
4671                                 loc_index = ip [5] - CEE_STLOC_0;
4672                                 stloc_len = 1;
4673                                 break;
4674                         default:
4675                                 break;
4676                         }
4677
4678                         if ((loc_index != -1) && ip_in_bb (cfg, bblock, ip + 5)) {
4679                                 CHECK_LOCAL (loc_index);
4680                                 NEW_LOCSTORE (cfg, ins, loc_index, *sp);
4681
4682                                 if (ins->opcode == CEE_STOBJ) {
4683                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4684                                         ins->cil_code = ip;
4685                                         g_assert (ins->opcode == CEE_STOBJ);
4686                                         NEW_LOCLOADA (cfg, ins, loc_index);
4687                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
4688                                         ip += 5;
4689                                         ip += stloc_len;
4690                                         break;
4691                                 }
4692                         }
4693
4694                         n = mono_class_value_size (klass, NULL);
4695                         ins = mono_compile_create_var (cfg, &klass->byval_arg, OP_LOCAL);
4696                         NEW_TEMPLOADA (cfg, iargs [0], ins->inst_c0);
4697                         if ((cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 5) {
4698                                 MonoInst *copy;
4699                                 MONO_INST_NEW (cfg, copy, OP_MEMCPY);
4700                                 copy->inst_left = iargs [0];
4701                                 copy->inst_right = *sp;
4702                                 copy->cil_code = ip;
4703                                 copy->unused = n;
4704                                 MONO_ADD_INS (bblock, copy);
4705                         } else {
4706                                 MonoMethod *memcpy_method = get_memcpy_method ();
4707                                 iargs [1] = *sp;
4708                                 NEW_ICONST (cfg, iargs [2], n);
4709                                 iargs [2]->cil_code = ip;
4710
4711                                 mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
4712                         }
4713                         NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
4714                         ++sp;
4715                         ip += 5;
4716                         ins_flag = 0;
4717                         inline_costs += 1;
4718                         break;
4719                 }
4720                 case CEE_LDSTR:
4721                         CHECK_STACK_OVF (1);
4722                         CHECK_OPSIZE (5);
4723                         n = read32 (ip + 1);
4724
4725                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
4726                                 NEW_PCONST (cfg, ins, mono_method_get_wrapper_data (method, n));
4727                                 ins->cil_code = ip;
4728                                 ins->type = STACK_OBJ;
4729                                 *sp = ins;
4730                         }
4731                         else if (method->wrapper_type != MONO_WRAPPER_NONE) {
4732                                 int temp;
4733                                 MonoInst *iargs [1];
4734
4735                                 NEW_PCONST (cfg, iargs [0], mono_method_get_wrapper_data (method, n));
4736                                 temp = mono_emit_jit_icall (cfg, bblock, mono_string_new_wrapper, iargs, ip);
4737                                 NEW_TEMPLOAD (cfg, *sp, temp);
4738
4739                         } else {
4740
4741                                 if (cfg->opt & MONO_OPT_SHARED) {
4742                                         int temp;
4743                                         MonoInst *iargs [3];
4744                                         MonoInst* domain_var;
4745
4746                                         if (cfg->compile_aot) {
4747                                                 cfg->ldstr_list = g_list_prepend (cfg->ldstr_list, GINT_TO_POINTER (n));
4748                                         }
4749                                         /* avoid depending on undefined C behavior in sequence points */
4750                                         domain_var = mono_get_domainvar (cfg);
4751                                         NEW_TEMPLOAD (cfg, iargs [0], domain_var->inst_c0);
4752                                         NEW_IMAGECONST (cfg, iargs [1], image);
4753                                         NEW_ICONST (cfg, iargs [2], mono_metadata_token_index (n));
4754                                         temp = mono_emit_jit_icall (cfg, bblock, mono_ldstr, iargs, ip);
4755                                         NEW_TEMPLOAD (cfg, *sp, temp);
4756                                         mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
4757                                 } else {
4758                                         if (bblock->out_of_line) {
4759                                                 MonoInst *iargs [2];
4760                                                 int temp;
4761
4762                                                 /* Avoid creating the string object */
4763                                                 NEW_IMAGECONST (cfg, iargs [0], image);
4764                                                 NEW_ICONST (cfg, iargs [1], mono_metadata_token_index (n));
4765                                                 temp = mono_emit_jit_icall (cfg, bblock, helper_ldstr, iargs, ip);
4766                                                 NEW_TEMPLOAD (cfg, *sp, temp);
4767                                         }
4768                                         else
4769                                         if (cfg->compile_aot) {
4770                                                 NEW_LDSTRCONST (cfg, ins, image, n);
4771                                                 *sp = ins;
4772                                         }
4773                                         else {
4774                                                 NEW_PCONST (cfg, ins, NULL);
4775                                                 ins->cil_code = ip;
4776                                                 ins->type = STACK_OBJ;
4777                                                 ins->inst_p0 = mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
4778                                                 *sp = ins;
4779                                         }
4780                                 }
4781                         }
4782
4783                         sp++;
4784                         ip += 5;
4785                         break;
4786                 case CEE_NEWOBJ: {
4787                         MonoInst *iargs [2];
4788                         MonoMethodSignature *fsig;
4789                         int temp;
4790
4791                         CHECK_OPSIZE (5);
4792                         token = read32 (ip + 1);
4793                         cmethod = mini_get_method (method, token, NULL, generic_context);
4794                         if (!cmethod)
4795                                 goto load_error;
4796                         fsig = mono_method_get_signature (cmethod, image, token);
4797
4798                         mono_class_init (cmethod->klass);
4799
4800                         if (mono_use_security_manager) {
4801                                 check_linkdemand (cfg, method, cmethod, bblock, ip);
4802                         }
4803
4804                         n = fsig->param_count;
4805                         CHECK_STACK (n);
4806
4807                         /* move the args to allow room for 'this' in the first position */
4808                         while (n--) {
4809                                 --sp;
4810                                 sp [1] = sp [0];
4811                         }
4812
4813                         handle_loaded_temps (cfg, bblock, stack_start, sp);
4814
4815                         if (mini_class_is_system_array (cmethod->klass)) {
4816                                 NEW_METHODCONST (cfg, *sp, cmethod);
4817                                 temp = handle_array_new (cfg, bblock, fsig->param_count, sp, ip);
4818                         } else if (cmethod->string_ctor) {
4819                                 /* we simply pass a null pointer */
4820                                 NEW_PCONST (cfg, *sp, NULL);
4821                                 /* now call the string ctor */
4822                                 temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, NULL);
4823                         } else {
4824                                 MonoInst* callvirt_this_arg = NULL;
4825
4826                                 if (cmethod->klass->valuetype) {
4827                                         iargs [0] = mono_compile_create_var (cfg, &cmethod->klass->byval_arg, OP_LOCAL);
4828                                         temp = iargs [0]->inst_c0;
4829
4830                                         NEW_TEMPLOADA (cfg, *sp, temp);
4831
4832                                         handle_initobj (cfg, bblock, *sp, NULL, cmethod->klass, stack_start, sp);
4833
4834                                         NEW_TEMPLOADA (cfg, *sp, temp);
4835
4836                                         /*
4837                                          * The code generated by mini_emit_virtual_call () expects
4838                                          * iargs [0] to be a boxed instance, but luckily the vcall
4839                                          * will be transformed into a normal call there. The AOT
4840                                          * case needs an already allocate got_var.
4841                                          */
4842                                         mono_get_got_var (cfg);
4843                                 } else {
4844                                         temp = handle_alloc (cfg, bblock, cmethod->klass, FALSE, ip);
4845                                         NEW_TEMPLOAD (cfg, *sp, temp);
4846                                 }
4847
4848                                 /* Avoid virtual calls to ctors if possible */
4849                                 if (cmethod->klass->marshalbyref)
4850                                         callvirt_this_arg = sp [0];
4851
4852                                 if ((cfg->opt & MONO_OPT_INLINE) && cmethod &&
4853                                     mono_method_check_inlining (cfg, cmethod) &&
4854                                     !mono_class_is_subclass_of (cmethod->klass, mono_defaults.exception_class, FALSE) &&
4855                                     !g_list_find (dont_inline, cmethod)) {
4856                                         int costs;
4857                                         MonoBasicBlock *ebblock;
4858                                         if ((costs = inline_method (cfg, cmethod, fsig, bblock, sp, ip, real_offset, dont_inline, &ebblock, FALSE))) {
4859
4860                                                 ip += 5;
4861                                                 real_offset += 5;
4862
4863                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
4864                                                 ebblock->next_bb = bblock;
4865                                                 link_bblock (cfg, ebblock, bblock);
4866
4867                                                 NEW_TEMPLOAD (cfg, *sp, temp);
4868                                                 sp++;
4869
4870                                                 /* indicates start of a new block, and triggers a load
4871                                                    of all stack arguments at bb boundarie */
4872                                                 bblock = ebblock;
4873
4874                                                 inline_costs += costs;
4875                                                 break;
4876
4877                                         } else {
4878                                                 mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, callvirt_this_arg);
4879                                         }
4880                                 } else {
4881                                         /* now call the actual ctor */
4882                                         mono_emit_method_call_spilled (cfg, bblock, cmethod, fsig, sp, ip, callvirt_this_arg);
4883                                 }
4884                         }
4885
4886                         NEW_TEMPLOAD (cfg, *sp, temp);
4887                         sp++;
4888
4889                         ip += 5;
4890                         inline_costs += 5;
4891                         break;
4892                 }
4893                 case CEE_ISINST:
4894                         CHECK_STACK (1);
4895                         --sp;
4896                         CHECK_OPSIZE (5);
4897                         token = read32 (ip + 1);
4898                         klass = mini_get_class (method, token, generic_context);
4899                         if (!klass)
4900                                 goto load_error;
4901
4902                         /* Needed by the code generated in inssel.brg */
4903                         mono_get_got_var (cfg);
4904
4905                         if (klass->marshalbyref || klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
4906
4907                                 MonoMethod *mono_isinst;
4908                                 MonoInst *iargs [1];
4909                                 MonoBasicBlock *ebblock;
4910                                 int costs;
4911                                 int temp;
4912
4913                                 mono_isinst = mono_marshal_get_isinst (klass);
4914                                 iargs [0] = sp [0];
4915
4916                                 costs = inline_method (cfg, mono_isinst, mono_method_signature (mono_isinst), bblock,
4917                                                            iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
4918
4919                                 g_assert (costs > 0);
4920
4921                                 ip += 5;
4922                                 real_offset += 5;
4923
4924                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
4925                                 ebblock->next_bb = bblock;
4926                                 link_bblock (cfg, ebblock, bblock);
4927
4928                                 temp = iargs [0]->inst_i0->inst_c0;
4929                                 NEW_TEMPLOAD (cfg, *sp, temp);
4930
4931                                 sp++;
4932                                 bblock = ebblock;
4933                                 inline_costs += costs;
4934
4935                         }
4936                         else {
4937                                 MONO_INST_NEW (cfg, ins, *ip);
4938                                 ins->type = STACK_OBJ;
4939                                 ins->inst_left = *sp;
4940                                 ins->inst_newa_class = klass;
4941                                 ins->cil_code = ip;
4942                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 5);
4943                                 ip += 5;
4944                         }
4945                         break;
4946                 case CEE_UNBOX_ANY: {
4947                         MonoInst *add, *vtoffset;
4948                         MonoInst *iargs [3];
4949
4950                         CHECK_STACK (1);
4951                         --sp;
4952                         CHECK_OPSIZE (5);
4953                         token = read32 (ip + 1);
4954                         klass = mini_get_class (method, token, generic_context);
4955                         if (!klass)
4956                                 goto load_error;
4957
4958                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
4959                                 /* CASTCLASS */
4960                                 if (klass->marshalbyref || klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
4961                                         MonoMethod *mono_castclass;
4962                                         MonoInst *iargs [1];
4963                                         MonoBasicBlock *ebblock;
4964                                         int costs;
4965                                         int temp;
4966
4967                                         mono_castclass = mono_marshal_get_castclass (klass);
4968                                         iargs [0] = sp [0];
4969
4970                                         costs = inline_method (cfg, mono_castclass, mono_method_signature (mono_castclass), bblock,
4971                                                                    iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
4972
4973                                         g_assert (costs > 0);
4974
4975                                         ip += 5;
4976                                         real_offset += 5;
4977
4978                                         GET_BBLOCK (cfg, bbhash, bblock, ip);
4979                                         ebblock->next_bb = bblock;
4980                                         link_bblock (cfg, ebblock, bblock);
4981
4982                                         temp = iargs [0]->inst_i0->inst_c0;
4983                                         NEW_TEMPLOAD (cfg, *sp, temp);
4984
4985                                         sp++;
4986                                         bblock = ebblock;
4987                                         inline_costs += costs;
4988                                 }
4989                                 else {
4990                                         MONO_INST_NEW (cfg, ins, CEE_CASTCLASS);
4991                                         ins->type = STACK_OBJ;
4992                                         ins->inst_left = *sp;
4993                                         ins->klass = klass;
4994                                         ins->inst_newa_class = klass;
4995                                         ins->cil_code = ip;
4996                                         *sp++ = ins;
4997                                         ip += 5;
4998                                 }
4999                                 break;
5000                         }
5001
5002                         MONO_INST_NEW (cfg, ins, OP_UNBOXCAST);
5003                         ins->type = STACK_OBJ;
5004                         ins->inst_left = *sp;
5005                         ins->klass = klass;
5006                         ins->inst_newa_class = klass;
5007                         ins->cil_code = ip;
5008
5009                         MONO_INST_NEW (cfg, add, OP_PADD);
5010                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
5011                         add->inst_left = ins;
5012                         add->inst_right = vtoffset;
5013                         add->type = STACK_MP;
5014                         *sp = add;
5015                         ip += 5;
5016                         /* LDOBJ impl */
5017                         n = mono_class_value_size (klass, NULL);
5018                         ins = mono_compile_create_var (cfg, &klass->byval_arg, OP_LOCAL);
5019                         NEW_TEMPLOADA (cfg, iargs [0], ins->inst_c0);
5020                         if ((cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 5) {
5021                                 MonoInst *copy;
5022                                 MONO_INST_NEW (cfg, copy, OP_MEMCPY);
5023                                 copy->inst_left = iargs [0];
5024                                 copy->inst_right = *sp;
5025                                 copy->cil_code = ip;
5026                                 copy->unused = n;
5027                                 MONO_ADD_INS (bblock, copy);
5028                         } else {
5029                                 MonoMethod *memcpy_method = get_memcpy_method ();
5030                                 iargs [1] = *sp;
5031                                 NEW_ICONST (cfg, iargs [2], n);
5032                                 iargs [2]->cil_code = ip;
5033
5034                                 mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
5035                         }
5036                         NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
5037                         ++sp;
5038                         inline_costs += 2;
5039                         break;
5040                 }
5041                 case CEE_UNBOX: {
5042                         MonoInst *add, *vtoffset;
5043
5044                         CHECK_STACK (1);
5045                         --sp;
5046                         CHECK_OPSIZE (5);
5047                         token = read32 (ip + 1);
5048                         klass = mini_get_class (method, token, generic_context);
5049                         if (!klass)
5050                                 goto load_error;
5051
5052                         /* Needed by the code generated in inssel.brg */
5053                         mono_get_got_var (cfg);
5054
5055                         MONO_INST_NEW (cfg, ins, OP_UNBOXCAST);
5056                         ins->type = STACK_OBJ;
5057                         ins->inst_left = *sp;
5058                         ins->klass = klass;
5059                         ins->inst_newa_class = klass;
5060                         ins->cil_code = ip;
5061
5062                         MONO_INST_NEW (cfg, add, OP_PADD);
5063                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
5064                         add->inst_left = ins;
5065                         add->inst_right = vtoffset;
5066                         add->type = STACK_MP;
5067                         *sp++ = add;
5068                         ip += 5;
5069                         inline_costs += 2;
5070                         break;
5071                 }
5072                 case CEE_CASTCLASS:
5073                         CHECK_STACK (1);
5074                         --sp;
5075                         CHECK_OPSIZE (5);
5076                         token = read32 (ip + 1);
5077                         klass = mini_get_class (method, token, generic_context);
5078                         if (!klass)
5079                                 goto load_error;
5080
5081                         /* Needed by the code generated in inssel.brg */
5082                         mono_get_got_var (cfg);
5083
5084                         if (klass->marshalbyref || klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
5085
5086                                 MonoMethod *mono_castclass;
5087                                 MonoInst *iargs [1];
5088                                 MonoBasicBlock *ebblock;
5089                                 int costs;
5090                                 int temp;
5091
5092                                 mono_castclass = mono_marshal_get_castclass (klass);
5093                                 iargs [0] = sp [0];
5094
5095                                 costs = inline_method (cfg, mono_castclass, mono_method_signature (mono_castclass), bblock,
5096                                                            iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5097
5098                                 g_assert (costs > 0);
5099
5100                                 ip += 5;
5101                                 real_offset += 5;
5102
5103                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5104                                 ebblock->next_bb = bblock;
5105                                 link_bblock (cfg, ebblock, bblock);
5106
5107                                 temp = iargs [0]->inst_i0->inst_c0;
5108                                 NEW_TEMPLOAD (cfg, *sp, temp);
5109
5110                                 sp++;
5111                                 bblock = ebblock;
5112                                 inline_costs += costs;
5113                         }
5114                         else {
5115                                 MONO_INST_NEW (cfg, ins, *ip);
5116                                 ins->type = STACK_OBJ;
5117                                 ins->inst_left = *sp;
5118                                 ins->klass = klass;
5119                                 ins->inst_newa_class = klass;
5120                                 ins->cil_code = ip;
5121                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 5);
5122                                 ip += 5;
5123                         }
5124                         break;
5125                 case CEE_THROW:
5126                         CHECK_STACK (1);
5127                         MONO_INST_NEW (cfg, ins, *ip);
5128                         --sp;
5129                         ins->inst_left = *sp;
5130                         ins->cil_code = ip++;
5131                         bblock->out_of_line = TRUE;
5132                         MONO_ADD_INS (bblock, ins);
5133                         MONO_INST_NEW (cfg, ins, OP_NOT_REACHED);
5134                         ins->cil_code = ip - 1;
5135                         MONO_ADD_INS (bblock, ins);
5136                         sp = stack_start;
5137                         link_bblock (cfg, bblock, end_bblock);
5138                         start_new_bblock = 1;
5139                         mono_get_got_var (cfg);
5140                         break;
5141                 case CEE_LDFLD:
5142                 case CEE_LDFLDA:
5143                 case CEE_STFLD: {
5144                         MonoInst *offset_ins;
5145                         MonoClassField *field;
5146                         MonoBasicBlock *ebblock;
5147                         int costs;
5148                         guint foffset;
5149
5150                         if (*ip == CEE_STFLD) {
5151                                 CHECK_STACK (2);
5152                                 sp -= 2;
5153                         } else {
5154                                 CHECK_STACK (1);
5155                                 --sp;
5156                         }
5157                         // FIXME: enable this test later.
5158                         //if (sp [0]->type != STACK_OBJ && sp [0]->type != STACK_MP)
5159                         //      goto unverified;
5160                         CHECK_OPSIZE (5);
5161                         token = read32 (ip + 1);
5162                         field = mono_field_from_token (image, token, &klass, generic_context);
5163                         if (!field)
5164                                 goto load_error;
5165                         mono_class_init (klass);
5166
5167                         foffset = klass->valuetype? field->offset - sizeof (MonoObject): field->offset;
5168                         /* FIXME: mark instructions for use in SSA */
5169                         if (*ip == CEE_STFLD) {
5170                                 if ((klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) || klass->contextbound || klass == mono_defaults.marshalbyrefobject_class) {
5171                                         MonoMethod *stfld_wrapper = mono_marshal_get_stfld_wrapper (field->type);
5172                                         MonoInst *iargs [5];
5173
5174                                         iargs [0] = sp [0];
5175                                         NEW_CLASSCONST (cfg, iargs [1], klass);
5176                                         NEW_FIELDCONST (cfg, iargs [2], field);
5177                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) :
5178                                                     field->offset);
5179                                         iargs [4] = sp [1];
5180
5181                                         if (cfg->opt & MONO_OPT_INLINE) {
5182                                                 costs = inline_method (cfg, stfld_wrapper, mono_method_signature (stfld_wrapper), bblock,
5183                                                                        iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5184                                                 g_assert (costs > 0);
5185
5186                                                 ip += 5;
5187                                                 real_offset += 5;
5188
5189                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5190                                                 ebblock->next_bb = bblock;
5191                                                 link_bblock (cfg, ebblock, bblock);
5192
5193                                                 /* indicates start of a new block, and triggers a load
5194                                                    of all stack arguments at bb boundarie */
5195                                                 bblock = ebblock;
5196
5197                                                 inline_costs += costs;
5198                                                 break;
5199                                         } else {
5200                                                 mono_emit_method_call_spilled (cfg, bblock, stfld_wrapper, mono_method_signature (stfld_wrapper), iargs, ip, NULL);
5201                                         }
5202                                 } else {
5203                                         MonoInst *store;
5204                                         NEW_ICONST (cfg, offset_ins, foffset);
5205                                         MONO_INST_NEW (cfg, ins, OP_PADD);
5206                                         ins->cil_code = ip;
5207                                         ins->inst_left = *sp;
5208                                         ins->inst_right = offset_ins;
5209                                         ins->type = STACK_MP;
5210
5211                                         MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
5212                                         store->cil_code = ip;
5213                                         store->inst_left = ins;
5214                                         store->inst_right = sp [1];
5215                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
5216                                         store->flags |= ins_flag;
5217                                         ins_flag = 0;
5218                                         if (store->opcode == CEE_STOBJ) {
5219                                                 handle_stobj (cfg, bblock, ins, sp [1], ip,
5220                                                               mono_class_from_mono_type (field->type), FALSE, FALSE);
5221                                         } else
5222                                                 MONO_ADD_INS (bblock, store);
5223                                 }
5224                         } else {
5225                                 if ((klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) || klass->contextbound || klass == mono_defaults.marshalbyrefobject_class) {
5226                                         MonoMethod *ldfld_wrapper = mono_marshal_get_ldfld_wrapper (field->type);
5227                                         MonoInst *iargs [4];
5228                                         int temp;
5229
5230                                         iargs [0] = sp [0];
5231                                         NEW_CLASSCONST (cfg, iargs [1], klass);
5232                                         NEW_FIELDCONST (cfg, iargs [2], field);
5233                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
5234                                         if ((cfg->opt & MONO_OPT_INLINE) && !MONO_TYPE_ISSTRUCT (mono_method_signature (ldfld_wrapper)->ret)) {
5235                                                 costs = inline_method (cfg, ldfld_wrapper, mono_method_signature (ldfld_wrapper), bblock,
5236                                                                        iargs, ip, real_offset, dont_inline, &ebblock, TRUE);
5237                                                 g_assert (costs > 0);
5238
5239                                                 ip += 5;
5240                                                 real_offset += 5;
5241
5242                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
5243                                                 ebblock->next_bb = bblock;
5244                                                 link_bblock (cfg, ebblock, bblock);
5245
5246                                                 temp = iargs [0]->inst_i0->inst_c0;
5247
5248                                                 if (*ip == CEE_LDFLDA) {
5249                                                         /* not sure howto handle this */
5250                                                         NEW_TEMPLOADA (cfg, *sp, temp);
5251                                                 } else {
5252                                                         NEW_TEMPLOAD (cfg, *sp, temp);
5253                                                 }
5254                                                 sp++;
5255
5256                                                 /* indicates start of a new block, and triggers a load of
5257                                                    all stack arguments at bb boundarie */
5258                                                 bblock = ebblock;
5259
5260                                                 inline_costs += costs;
5261                                                 break;
5262                                         } else {
5263                                                 temp = mono_emit_method_call_spilled (cfg, bblock, ldfld_wrapper, mono_method_signature (ldfld_wrapper), iargs, ip, NULL);
5264                                                 if (*ip == CEE_LDFLDA) {
5265                                                         /* not sure howto handle this */
5266                                                         NEW_TEMPLOADA (cfg, *sp, temp);
5267                                                 } else {
5268                                                         NEW_TEMPLOAD (cfg, *sp, temp);
5269                                                 }
5270                                                 sp++;
5271                                         }
5272                                 } else {
5273                                         NEW_ICONST (cfg, offset_ins, foffset);
5274                                         MONO_INST_NEW (cfg, ins, OP_PADD);
5275                                         ins->cil_code = ip;
5276                                         ins->inst_left = *sp;
5277                                         ins->inst_right = offset_ins;
5278                                         ins->type = STACK_MP;
5279
5280                                         if (*ip == CEE_LDFLDA) {
5281                                                 *sp++ = ins;
5282                                         } else {
5283                                                 MonoInst *load;
5284                                                 MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
5285                                                 type_to_eval_stack_type (field->type, load);
5286                                                 load->cil_code = ip;
5287                                                 load->inst_left = ins;
5288                                                 load->flags |= ins_flag;
5289                                                 ins_flag = 0;
5290                                                 *sp++ = load;
5291                                         }
5292                                 }
5293                         }
5294                         ip += 5;
5295                         break;
5296                 }
5297                 case CEE_LDSFLD:
5298                 case CEE_LDSFLDA:
5299                 case CEE_STSFLD: {
5300                         MonoClassField *field;
5301                         gpointer addr = NULL;
5302
5303                         CHECK_OPSIZE (5);
5304                         token = read32 (ip + 1);
5305
5306                         field = mono_field_from_token (image, token, &klass, generic_context);
5307                         if (!field)
5308                                 goto load_error;
5309                         mono_class_init (klass);
5310
5311                         g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL));
5312
5313                         if ((*ip) == CEE_STSFLD)
5314                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
5315
5316                         /* The special_static_fields field is init'd in mono_class_vtable, so it needs
5317                          * to be called here.
5318                          */
5319                         if (!(cfg->opt & MONO_OPT_SHARED))
5320                                 mono_class_vtable (cfg->domain, klass);
5321                         mono_domain_lock (cfg->domain);
5322                         if (cfg->domain->special_static_fields)
5323                                 addr = g_hash_table_lookup (cfg->domain->special_static_fields, field);
5324                         mono_domain_unlock (cfg->domain);
5325
5326                         if ((cfg->opt & MONO_OPT_SHARED) || (cfg->compile_aot && addr)) {
5327                                 int temp;
5328                                 MonoInst *iargs [2];
5329                                 MonoInst *domain_var;
5330
5331                                 g_assert (field->parent);
5332                                 /* avoid depending on undefined C behavior in sequence points */
5333                                 domain_var = mono_get_domainvar (cfg);
5334                                 NEW_TEMPLOAD (cfg, iargs [0], domain_var->inst_c0);
5335                                 NEW_FIELDCONST (cfg, iargs [1], field);
5336                                 temp = mono_emit_jit_icall (cfg, bblock, mono_class_static_field_address, iargs, ip);
5337                                 NEW_TEMPLOAD (cfg, ins, temp);
5338                         } else {
5339                                 MonoVTable *vtable;
5340                                 vtable = mono_class_vtable (cfg->domain, klass);
5341                                 if (!addr) {
5342                                         if (mini_field_access_needs_cctor_run (cfg, method, vtable) && !(g_slist_find (class_inits, vtable))) {
5343                                                 guint8 *tramp = mono_create_class_init_trampoline (vtable);
5344                                                 mono_emit_native_call (cfg, bblock, tramp,
5345                                                                                            helper_sig_class_init_trampoline,
5346                                                                                            NULL, ip, FALSE, FALSE);
5347                                                 if (cfg->verbose_level > 2)
5348                                                         g_print ("class %s.%s needs init call for %s\n", klass->name_space, klass->name, field->name);
5349                                                 class_inits = g_slist_prepend (class_inits, vtable);
5350                                         } else {
5351                                                 if (cfg->run_cctors)
5352                                                         mono_runtime_class_init (vtable);
5353                                         }
5354                                         addr = (char*)vtable->data + field->offset;
5355
5356                                         if (cfg->compile_aot)
5357                                                 NEW_SFLDACONST (cfg, ins, field);
5358                                         else
5359                                                 NEW_PCONST (cfg, ins, addr);
5360                                         ins->cil_code = ip;
5361                                 } else {
5362                                         /*
5363                                          * insert call to mono_threads_get_static_data (GPOINTER_TO_UINT (addr))
5364                                          * This could be later optimized to do just a couple of
5365                                          * memory dereferences with constant offsets.
5366                                          */
5367                                         int temp;
5368                                         MonoInst *iargs [1];
5369                                         NEW_ICONST (cfg, iargs [0], GPOINTER_TO_UINT (addr));
5370                                         temp = mono_emit_jit_icall (cfg, bblock, mono_get_special_static_data, iargs, ip);
5371                                         NEW_TEMPLOAD (cfg, ins, temp);
5372                                 }
5373                         }
5374
5375                         /* FIXME: mark instructions for use in SSA */
5376                         if (*ip == CEE_LDSFLDA) {
5377                                 *sp++ = ins;
5378                         } else if (*ip == CEE_STSFLD) {
5379                                 MonoInst *store;
5380                                 CHECK_STACK (1);
5381                                 sp--;
5382                                 MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
5383                                 store->cil_code = ip;
5384                                 store->inst_left = ins;
5385                                 store->inst_right = sp [0];
5386                                 store->flags |= ins_flag;
5387                                 ins_flag = 0;
5388
5389                                 if (store->opcode == CEE_STOBJ) {
5390                                         handle_stobj (cfg, bblock, ins, sp [0], ip, mono_class_from_mono_type (field->type), FALSE, FALSE);
5391                                 } else
5392                                         MONO_ADD_INS (bblock, store);
5393                         } else {
5394                                 gboolean is_const = FALSE;
5395                                 MonoVTable *vtable = mono_class_vtable (cfg->domain, klass);
5396                                 if (!((cfg->opt & MONO_OPT_SHARED) || cfg->compile_aot) &&
5397                                     vtable->initialized && (field->type->attrs & FIELD_ATTRIBUTE_INIT_ONLY)) {
5398                                         gpointer addr = (char*)vtable->data + field->offset;
5399                                         int ro_type = field->type->type;
5400                                         if (ro_type == MONO_TYPE_VALUETYPE && field->type->data.klass->enumtype) {
5401                                                 ro_type = field->type->data.klass->enum_basetype->type;
5402                                         }
5403                                         /* g_print ("RO-FIELD %s.%s:%s\n", klass->name_space, klass->name, field->name);*/
5404                                         is_const = TRUE;
5405                                         switch (ro_type) {
5406                                         case MONO_TYPE_BOOLEAN:
5407                                         case MONO_TYPE_U1:
5408                                                 NEW_ICONST (cfg, *sp, *((guint8 *)addr));
5409                                                 sp++;
5410                                                 break;
5411                                         case MONO_TYPE_I1:
5412                                                 NEW_ICONST (cfg, *sp, *((gint8 *)addr));
5413                                                 sp++;
5414                                                 break;
5415                                         case MONO_TYPE_CHAR:
5416                                         case MONO_TYPE_U2:
5417                                                 NEW_ICONST (cfg, *sp, *((guint16 *)addr));
5418                                                 sp++;
5419                                                 break;
5420                                         case MONO_TYPE_I2:
5421                                                 NEW_ICONST (cfg, *sp, *((gint16 *)addr));
5422                                                 sp++;
5423                                                 break;
5424                                                 break;
5425                                         case MONO_TYPE_I4:
5426                                                 NEW_ICONST (cfg, *sp, *((gint32 *)addr));
5427                                                 sp++;
5428                                                 break;
5429                                         case MONO_TYPE_U4:
5430                                                 NEW_ICONST (cfg, *sp, *((guint32 *)addr));
5431                                                 sp++;
5432                                                 break;
5433                                         case MONO_TYPE_I:
5434                                         case MONO_TYPE_U:
5435                                         case MONO_TYPE_STRING:
5436                                         case MONO_TYPE_OBJECT:
5437                                         case MONO_TYPE_CLASS:
5438                                         case MONO_TYPE_SZARRAY:
5439                                         case MONO_TYPE_PTR:
5440                                         case MONO_TYPE_FNPTR:
5441                                         case MONO_TYPE_ARRAY:
5442                                                 NEW_PCONST (cfg, *sp, *((gpointer *)addr));
5443                                                 type_to_eval_stack_type (field->type, *sp);
5444                                                 sp++;
5445                                                 break;
5446                                         case MONO_TYPE_I8:
5447                                         case MONO_TYPE_U8:
5448                                                 MONO_INST_NEW (cfg, *sp, OP_I8CONST);
5449                                                 sp [0]->type = STACK_I8;
5450                                                 sp [0]->inst_l = *((gint64 *)addr);
5451                                                 sp++;
5452                                                 break;
5453                                         case MONO_TYPE_R4:
5454                                         case MONO_TYPE_R8:
5455                                         case MONO_TYPE_VALUETYPE:
5456                                         default:
5457                                                 is_const = FALSE;
5458                                                 break;
5459                                         }
5460                                 }
5461
5462                                 if (!is_const) {
5463                                         MonoInst *load;
5464                                         CHECK_STACK_OVF (1);
5465                                         MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
5466                                         type_to_eval_stack_type (field->type, load);
5467                                         load->cil_code = ip;
5468                                         load->inst_left = ins;
5469                                         *sp++ = load;
5470                                         load->flags |= ins_flag;
5471                                         ins_flag = 0;
5472                                         /* fixme: dont see the problem why this does not work */
5473                                         //cfg->disable_aot = TRUE;
5474                                 }
5475                         }
5476                         ip += 5;
5477                         break;
5478                 }
5479                 case CEE_STOBJ:
5480                         CHECK_STACK (2);
5481                         sp -= 2;
5482                         CHECK_OPSIZE (5);
5483                         token = read32 (ip + 1);
5484                         klass = mini_get_class (method, token, generic_context);
5485                         if (!klass)
5486                                 goto load_error;
5487                         n = mono_type_to_stind (&klass->byval_arg);
5488                         if (n == CEE_STOBJ) {
5489                                 handle_stobj (cfg, bblock, sp [0], sp [1], ip, klass, FALSE, FALSE);
5490                         } else {
5491                                 /* FIXME: should check item at sp [1] is compatible with the type of the store. */
5492                                 MonoInst *store;
5493                                 MONO_INST_NEW (cfg, store, n);
5494                                 store->cil_code = ip;
5495                                 store->inst_left = sp [0];
5496                                 store->inst_right = sp [1];
5497                                 store->flags |= ins_flag;
5498                                 MONO_ADD_INS (bblock, store);
5499                         }
5500                         ins_flag = 0;
5501                         ip += 5;
5502                         inline_costs += 1;
5503                         break;
5504                 case CEE_BOX: {
5505                         MonoInst *val;
5506                         CHECK_STACK (1);
5507                         --sp;
5508                         val = *sp;
5509                         CHECK_OPSIZE (5);
5510                         token = read32 (ip + 1);
5511                         klass = mini_get_class (method, token, generic_context);
5512                         if (!klass)
5513                                 goto load_error;
5514
5515                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
5516                                 *sp++ = val;
5517                                 ip += 5;
5518                                 break;
5519                         }
5520                         *sp++ = handle_box (cfg, bblock, val, ip, klass);
5521                         ip += 5;
5522                         inline_costs += 1;
5523                         break;
5524                 }
5525                 case CEE_NEWARR:
5526                         CHECK_STACK (1);
5527                         MONO_INST_NEW (cfg, ins, *ip);
5528                         ins->cil_code = ip;
5529                         --sp;
5530
5531                         CHECK_OPSIZE (5);
5532                         token = read32 (ip + 1);
5533
5534                         /* allocate the domainvar - becaus this is used in decompose_foreach */
5535                         if (cfg->opt & MONO_OPT_SHARED) {
5536                                 mono_get_domainvar (cfg);
5537                                 /* LAME-IR: Mark it as used since otherwise it will be optimized away */
5538                                 cfg->domainvar->flags |= MONO_INST_VOLATILE;
5539                         }
5540
5541                         /* Ditto */
5542                         mono_get_got_var (cfg);
5543
5544                         klass = mini_get_class (method, token, generic_context);
5545                         if (!klass)
5546                                 goto load_error;
5547                         ins->inst_newa_class = klass;
5548                         ins->inst_newa_len = *sp;
5549                         ins->type = STACK_OBJ;
5550                         ip += 5;
5551                         *sp++ = ins;
5552                         /*
5553                          * we store the object so calls to create the array are not interleaved
5554                          * with the arguments of other calls.
5555                          */
5556                         if (1) {
5557                                 MonoInst *store, *temp, *load;
5558                                 --sp;
5559                                 temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
5560                                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
5561                                 store->cil_code = ins->cil_code;
5562                                 MONO_ADD_INS (bblock, store);
5563                                 NEW_TEMPLOAD (cfg, load, temp->inst_c0);
5564                                 load->cil_code = ins->cil_code;
5565                                 *sp++ = load;
5566                         }
5567                         inline_costs += 1;
5568                         break;
5569                 case CEE_LDLEN:
5570                         CHECK_STACK (1);
5571                         MONO_INST_NEW (cfg, ins, *ip);
5572                         ins->cil_code = ip++;
5573                         --sp;
5574                         ins->inst_left = *sp;
5575                         ins->type = STACK_PTR;
5576                         *sp++ = ins;
5577                         break;
5578                 case CEE_LDELEMA:
5579                         CHECK_STACK (2);
5580                         sp -= 2;
5581                         CHECK_OPSIZE (5);
5582
5583                         klass = mini_get_class (method, read32 (ip + 1), generic_context);
5584                         if (!klass)
5585                                 goto load_error;
5586                         /* we need to make sure that this array is exactly the type it needs
5587                          * to be for correctness. the wrappers are lax with their usage
5588                          * so we need to ignore them here
5589                          */
5590                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE) {
5591                                 MonoInst* check;
5592                                 MONO_INST_NEW (cfg, check, OP_CHECK_ARRAY_TYPE);
5593                                 check->cil_code = ip;
5594                                 check->klass = klass;
5595                                 check->inst_left = sp [0];
5596                                 check->type = STACK_OBJ;
5597                                 sp [0] = check;
5598                         }
5599
5600                         mono_class_init (klass);
5601                         NEW_LDELEMA (cfg, ins, sp, klass);
5602                         ins->cil_code = ip;
5603                         *sp++ = ins;
5604                         ip += 5;
5605                         break;
5606                 case CEE_LDELEM_ANY: {
5607                         MonoInst *load;
5608                         CHECK_STACK (2);
5609                         sp -= 2;
5610                         CHECK_OPSIZE (5);
5611                         token = read32 (ip + 1);
5612                         klass = mono_class_get_full (image, token, generic_context);
5613                         if (!klass)
5614                                 goto load_error;
5615                         mono_class_init (klass);
5616                         NEW_LDELEMA (cfg, load, sp, klass);
5617                         load->cil_code = ip;
5618                         MONO_INST_NEW (cfg, ins, mono_type_to_ldind (&klass->byval_arg));
5619                         ins->cil_code = ip;
5620                         ins->inst_left = load;
5621                         *sp++ = ins;
5622                         type_to_eval_stack_type (&klass->byval_arg, ins);
5623                         ip += 5;
5624                         break;
5625                 }
5626                 case CEE_LDELEM_I1:
5627                 case CEE_LDELEM_U1:
5628                 case CEE_LDELEM_I2:
5629                 case CEE_LDELEM_U2:
5630                 case CEE_LDELEM_I4:
5631                 case CEE_LDELEM_U4:
5632                 case CEE_LDELEM_I8:
5633                 case CEE_LDELEM_I:
5634                 case CEE_LDELEM_R4:
5635                 case CEE_LDELEM_R8:
5636                 case CEE_LDELEM_REF: {
5637                         MonoInst *load;
5638                         /*
5639                          * translate to:
5640                          * ldind.x (ldelema (array, index))
5641                          * ldelema does the bounds check
5642                          */
5643                         CHECK_STACK (2);
5644                         sp -= 2;
5645                         klass = array_access_to_klass (*ip);
5646                         NEW_LDELEMA (cfg, load, sp, klass);
5647                         load->cil_code = ip;
5648                         MONO_INST_NEW (cfg, ins, ldelem_to_ldind [*ip - CEE_LDELEM_I1]);
5649                         ins->cil_code = ip;
5650                         ins->inst_left = load;
5651                         *sp++ = ins;
5652                         ins->type = ldind_type [ins->opcode - CEE_LDIND_I1];
5653                         ++ip;
5654                         break;
5655                 }
5656                 case CEE_STELEM_I:
5657                 case CEE_STELEM_I1:
5658                 case CEE_STELEM_I2:
5659                 case CEE_STELEM_I4:
5660                 case CEE_STELEM_I8:
5661                 case CEE_STELEM_R4:
5662                 case CEE_STELEM_R8: {
5663                         MonoInst *load;
5664                         /*
5665                          * translate to:
5666                          * stind.x (ldelema (array, index), val)
5667                          * ldelema does the bounds check
5668                          */
5669                         CHECK_STACK (3);
5670                         sp -= 3;
5671                         klass = array_access_to_klass (*ip);
5672                         NEW_LDELEMA (cfg, load, sp, klass);
5673                         load->cil_code = ip;
5674                         MONO_INST_NEW (cfg, ins, stelem_to_stind [*ip - CEE_STELEM_I]);
5675                         ins->cil_code = ip;
5676                         ins->inst_left = load;
5677                         ins->inst_right = sp [2];
5678                         ++ip;
5679                         handle_loaded_temps (cfg, bblock, stack_start, sp);
5680                         MONO_ADD_INS (bblock, ins);
5681                         inline_costs += 1;
5682                         break;
5683                 }
5684                 case CEE_STELEM_ANY: {
5685                         MonoInst *load;
5686                         /*
5687                          * translate to:
5688                          * stind.x (ldelema (array, index), val)
5689                          * ldelema does the bounds check
5690                          */
5691                         CHECK_STACK (3);
5692                         sp -= 3;
5693                         CHECK_OPSIZE (5);
5694                         token = read32 (ip + 1);
5695                         klass = mono_class_get_full (image, token, generic_context);
5696                         if (!klass)
5697                                 goto load_error;
5698                         mono_class_init (klass);
5699                         if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
5700                                 MonoMethod* helper = mono_marshal_get_stelemref ();
5701                                 MonoInst *iargs [3];
5702                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
5703
5704                                 iargs [2] = sp [2];
5705                                 iargs [1] = sp [1];
5706                                 iargs [0] = sp [0];
5707
5708                                 mono_emit_method_call_spilled (cfg, bblock, helper, mono_method_signature (helper), iargs, ip, NULL);
5709                         } else {
5710                                 NEW_LDELEMA (cfg, load, sp, klass);
5711                                 load->cil_code = ip;
5712
5713                                 n = mono_type_to_stind (&klass->byval_arg);
5714                                 if (n == CEE_STOBJ)
5715                                         handle_stobj (cfg, bblock, load, sp [2], ip, klass, FALSE, FALSE);
5716                                 else {
5717                                         MONO_INST_NEW (cfg, ins, n);
5718                                         ins->cil_code = ip;
5719                                         ins->inst_left = load;
5720                                         ins->inst_right = sp [2];
5721                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
5722                                         MONO_ADD_INS (bblock, ins);
5723                                 }
5724                         }
5725                         ip += 5;
5726                         inline_costs += 1;
5727                         break;
5728                 }
5729                 case CEE_STELEM_REF: {
5730                         MonoInst *iargs [3];
5731                         MonoMethod* helper = mono_marshal_get_stelemref ();
5732
5733                         CHECK_STACK (3);
5734                         sp -= 3;
5735
5736                         handle_loaded_temps (cfg, bblock, stack_start, sp);
5737
5738                         iargs [2] = sp [2];
5739                         iargs [1] = sp [1];
5740                         iargs [0] = sp [0];
5741
5742                         mono_emit_method_call_spilled (cfg, bblock, helper, mono_method_signature (helper), iargs, ip, NULL);
5743
5744                         /*
5745                         MonoInst *group;
5746                         NEW_GROUP (cfg, group, sp [0], sp [1]);
5747                         MONO_INST_NEW (cfg, ins, CEE_STELEM_REF);
5748                         ins->cil_code = ip;
5749                         ins->inst_left = group;
5750                         ins->inst_right = sp [2];
5751                         MONO_ADD_INS (bblock, ins);
5752                         */
5753
5754                         ++ip;
5755                         inline_costs += 1;
5756                         break;
5757                 }
5758                 case CEE_CKFINITE: {
5759                         MonoInst *store, *temp;
5760                         CHECK_STACK (1);
5761
5762                         /* this instr. can throw exceptions as side effect,
5763                          * so we cant eliminate dead code which contains CKFINITE opdodes.
5764                          * Spilling to memory makes sure that we always perform
5765                          * this check */
5766
5767
5768                         MONO_INST_NEW (cfg, ins, CEE_CKFINITE);
5769                         ins->cil_code = ip;
5770                         ins->inst_left = sp [-1];
5771                         temp = mono_compile_create_var (cfg, &mono_defaults.double_class->byval_arg, OP_LOCAL);
5772
5773                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
5774                         store->cil_code = ip;
5775                         MONO_ADD_INS (bblock, store);
5776
5777                         NEW_TEMPLOAD (cfg, sp [-1], temp->inst_c0);
5778
5779                         ++ip;
5780                         break;
5781                 }
5782                 case CEE_REFANYVAL:
5783                         CHECK_STACK (1);
5784                         MONO_INST_NEW (cfg, ins, *ip);
5785                         --sp;
5786                         CHECK_OPSIZE (5);
5787                         klass = mono_class_get_full (image, read32 (ip + 1), generic_context);
5788                         if (!klass)
5789                                 goto load_error;
5790                         mono_class_init (klass);
5791                         ins->type = STACK_MP;
5792                         ins->inst_left = *sp;
5793                         ins->klass = klass;
5794                         ins->inst_newa_class = klass;
5795                         ins->cil_code = ip;
5796                         ip += 5;
5797                         *sp++ = ins;
5798                         break;
5799                 case CEE_MKREFANY: {
5800                         MonoInst *loc, *klassconst;
5801
5802                         CHECK_STACK (1);
5803                         MONO_INST_NEW (cfg, ins, *ip);
5804                         --sp;
5805                         CHECK_OPSIZE (5);
5806                         klass = mono_class_get_full (image, read32 (ip + 1), generic_context);
5807                         if (!klass)
5808                                 goto load_error;
5809                         mono_class_init (klass);
5810                         ins->cil_code = ip;
5811
5812                         loc = mono_compile_create_var (cfg, &mono_defaults.typed_reference_class->byval_arg, OP_LOCAL);
5813                         NEW_TEMPLOADA (cfg, ins->inst_right, loc->inst_c0);
5814
5815                         NEW_PCONST (cfg, klassconst, klass);
5816                         NEW_GROUP (cfg, ins->inst_left, *sp, klassconst);
5817
5818                         MONO_ADD_INS (bblock, ins);
5819
5820                         NEW_TEMPLOAD (cfg, *sp, loc->inst_c0);
5821                         ++sp;
5822                         ip += 5;
5823                         break;
5824                 }
5825                 case CEE_LDTOKEN: {
5826                         gpointer handle;
5827                         MonoClass *handle_class;
5828
5829                         CHECK_STACK_OVF (1);
5830
5831                         CHECK_OPSIZE (5);
5832                         n = read32 (ip + 1);
5833
5834                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
5835                                 handle = mono_method_get_wrapper_data (method, n);
5836                                 handle_class = mono_method_get_wrapper_data (method, n + 1);
5837                         }
5838                         else {
5839                                 handle = mono_ldtoken (image, n, &handle_class, generic_context);
5840                         }
5841                         if (!handle)
5842                                 goto load_error;
5843                         mono_class_init (handle_class);
5844
5845                         if (cfg->opt & MONO_OPT_SHARED) {
5846                                 int temp;
5847                                 MonoInst *res, *store, *addr, *vtvar, *iargs [3];
5848
5849                                 vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
5850
5851                                 NEW_IMAGECONST (cfg, iargs [0], image);
5852                                 NEW_ICONST (cfg, iargs [1], n);
5853                                 NEW_PCONST (cfg, iargs [2], generic_context);
5854                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldtoken_wrapper, iargs, ip);
5855                                 NEW_TEMPLOAD (cfg, res, temp);
5856                                 NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
5857                                 NEW_INDSTORE (cfg, store, addr, res, &mono_defaults.int_class->byval_arg);
5858                                 MONO_ADD_INS (bblock, store);
5859                                 NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
5860                         } else {
5861                                 if ((ip [5] == CEE_CALL) && (cmethod = mini_get_method (method, read32 (ip + 6), NULL, generic_context)) &&
5862                                                 (cmethod->klass == mono_defaults.monotype_class->parent) &&
5863                                                 (strcmp (cmethod->name, "GetTypeFromHandle") == 0) && ip_in_bb (cfg, bblock, ip + 5)) {
5864                                         MonoClass *tclass = mono_class_from_mono_type (handle);
5865                                         mono_class_init (tclass);
5866                                         if (cfg->compile_aot)
5867                                                 NEW_TYPE_FROM_HANDLE_CONST (cfg, ins, image, n);
5868                                         else
5869                                                 NEW_PCONST (cfg, ins, mono_type_get_object (cfg->domain, handle));
5870                                         ins->type = STACK_OBJ;
5871                                         ins->klass = cmethod->klass;
5872                                         ip += 5;
5873                                 } else {
5874                                         MonoInst *store, *addr, *vtvar;
5875
5876                                         if (cfg->compile_aot)
5877                                                 NEW_LDTOKENCONST (cfg, ins, image, n);
5878                                         else
5879                                                 NEW_PCONST (cfg, ins, handle);
5880                                         vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
5881                                         NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
5882                                         NEW_INDSTORE (cfg, store, addr, ins, &mono_defaults.int_class->byval_arg);
5883                                         MONO_ADD_INS (bblock, store);
5884                                         NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
5885                                 }
5886                         }
5887
5888                         *sp++ = ins;
5889                         ip += 5;
5890                         break;
5891                 }
5892                 case CEE_CONV_U2:
5893                 case CEE_CONV_U1:
5894                 case CEE_CONV_I:
5895                         CHECK_STACK (1);
5896                         ADD_UNOP (*ip);
5897                         ip++;
5898                         break;
5899                 case CEE_ADD_OVF:
5900                 case CEE_ADD_OVF_UN:
5901                 case CEE_MUL_OVF:
5902                 case CEE_MUL_OVF_UN:
5903                 case CEE_SUB_OVF:
5904                 case CEE_SUB_OVF_UN:
5905                         CHECK_STACK (2);
5906                         ADD_BINOP (*ip);
5907                         if (mono_find_jit_opcode_emulation (ins->opcode)) {
5908                                 --sp;
5909                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 1);
5910                                 mono_get_got_var (cfg);
5911                         }
5912                         ip++;
5913                         break;
5914                 case CEE_ENDFINALLY:
5915                         MONO_INST_NEW (cfg, ins, *ip);
5916                         MONO_ADD_INS (bblock, ins);
5917                         ins->cil_code = ip++;
5918                         start_new_bblock = 1;
5919
5920                         /*
5921                          * Control will leave the method so empty the stack, otherwise
5922                          * the next basic block will start with a nonempty stack.
5923                          */
5924                         while (sp != stack_start) {
5925                                 MONO_INST_NEW (cfg, ins, CEE_POP);
5926                                 ins->cil_code = ip;
5927                                 sp--;
5928                                 ins->inst_i0 = *sp;
5929                                 MONO_ADD_INS (bblock, ins);
5930                         }
5931                         break;
5932                 case CEE_LEAVE:
5933                 case CEE_LEAVE_S: {
5934                         GList *handlers;
5935
5936                         if (*ip == CEE_LEAVE) {
5937                                 CHECK_OPSIZE (5);
5938                                 target = ip + 5 + (gint32)read32(ip + 1);
5939                         } else {
5940                                 CHECK_OPSIZE (2);
5941                                 target = ip + 2 + (signed char)(ip [1]);
5942                         }
5943
5944                         /* empty the stack */
5945                         while (sp != stack_start) {
5946                                 MONO_INST_NEW (cfg, ins, CEE_POP);
5947                                 ins->cil_code = ip;
5948                                 sp--;
5949                                 ins->inst_i0 = *sp;
5950                                 MONO_ADD_INS (bblock, ins);
5951                         }
5952
5953                         /*
5954                          * If this leave statement is in a catch block, check for a
5955                          * pending exception, and rethrow it if necessary.
5956                          */
5957                         for (i = 0; i < header->num_clauses; ++i) {
5958                                 MonoExceptionClause *clause = &header->clauses [i];
5959
5960                                 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)) {
5961                                         int temp;
5962                                         MonoInst *load;
5963
5964                                         NEW_TEMPLOAD (cfg, load, mono_find_exvar_for_offset (cfg, clause->handler_offset)->inst_c0);
5965                                         load->cil_code = ip;
5966
5967                                         temp = mono_emit_jit_icall (cfg, bblock, mono_thread_get_pending_exception, NULL, ip);
5968                                         NEW_TEMPLOAD (cfg, *sp, temp);
5969
5970                                         MONO_INST_NEW (cfg, ins, OP_THROW_OR_NULL);
5971                                         ins->inst_left = *sp;
5972                                         ins->inst_right = load;
5973                                         ins->cil_code = ip;
5974                                         MONO_ADD_INS (bblock, ins);
5975                                 }
5976                         }
5977
5978                         /* fixme: call fault handler ? */
5979
5980                         if ((handlers = mono_find_final_block (cfg, ip, target, MONO_EXCEPTION_CLAUSE_FINALLY))) {
5981                                 GList *tmp;
5982                                 for (tmp = handlers; tmp; tmp = tmp->next) {
5983                                         tblock = tmp->data;
5984                                         link_bblock (cfg, bblock, tblock);
5985                                         MONO_INST_NEW (cfg, ins, OP_CALL_HANDLER);
5986                                         ins->cil_code = ip;
5987                                         ins->inst_target_bb = tblock;
5988                                         MONO_ADD_INS (bblock, ins);
5989                                 }
5990                                 g_list_free (handlers);
5991                         }
5992
5993                         MONO_INST_NEW (cfg, ins, CEE_BR);
5994                         ins->cil_code = ip;
5995                         MONO_ADD_INS (bblock, ins);
5996                         GET_BBLOCK (cfg, bbhash, tblock, target);
5997                         link_bblock (cfg, bblock, tblock);
5998                         CHECK_BBLOCK (target, ip, tblock);
5999                         ins->inst_target_bb = tblock;
6000                         start_new_bblock = 1;
6001
6002                         if (*ip == CEE_LEAVE)
6003                                 ip += 5;
6004                         else
6005                                 ip += 2;
6006
6007                         break;
6008                 }
6009                 case CEE_STIND_I:
6010                         CHECK_STACK (2);
6011                         MONO_INST_NEW (cfg, ins, *ip);
6012                         sp -= 2;
6013                         handle_loaded_temps (cfg, bblock, stack_start, sp);
6014                         MONO_ADD_INS (bblock, ins);
6015                         ins->cil_code = ip++;
6016                         ins->inst_i0 = sp [0];
6017                         ins->inst_i1 = sp [1];
6018                         inline_costs += 1;
6019                         break;
6020                 case CEE_CONV_U:
6021                         CHECK_STACK (1);
6022                         ADD_UNOP (*ip);
6023                         ip++;
6024                         break;
6025                 /* trampoline mono specific opcodes */
6026                 case MONO_CUSTOM_PREFIX: {
6027
6028                         g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
6029
6030                         CHECK_OPSIZE (2);
6031                         switch (ip [1]) {
6032
6033                         case CEE_MONO_ICALL: {
6034                                 int temp;
6035                                 gpointer func;
6036                                 MonoJitICallInfo *info;
6037
6038                                 token = read32 (ip + 2);
6039                                 func = mono_method_get_wrapper_data (method, token);
6040                                 info = mono_find_jit_icall_by_addr (func);
6041                                 g_assert (info);
6042
6043                                 CHECK_STACK (info->sig->param_count);
6044                                 sp -= info->sig->param_count;
6045
6046                                 temp = mono_emit_jit_icall (cfg, bblock, info->func, sp, ip);
6047                                 if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
6048                                         NEW_TEMPLOAD (cfg, *sp, temp);
6049                                         sp++;
6050                                 }
6051
6052                                 ip += 6;
6053                                 inline_costs += 10 * num_calls++;
6054
6055                                 break;
6056                         }
6057                         case CEE_MONO_LDPTR:
6058                                 CHECK_STACK_OVF (1);
6059                                 CHECK_OPSIZE (6);
6060                                 token = read32 (ip + 2);
6061                                 NEW_PCONST (cfg, ins, mono_method_get_wrapper_data (method, token));
6062                                 ins->cil_code = ip;
6063                                 *sp++ = ins;
6064                                 ip += 6;
6065                                 inline_costs += 10 * num_calls++;
6066                                 /* Can't embed random pointers into AOT code */
6067                                 cfg->disable_aot = 1;
6068                                 break;
6069                         case CEE_MONO_VTADDR:
6070                                 CHECK_STACK (1);
6071                                 --sp;
6072                                 MONO_INST_NEW (cfg, ins, OP_VTADDR);
6073                                 ins->cil_code = ip;
6074                                 ins->type = STACK_MP;
6075                                 ins->inst_left = *sp;
6076                                 *sp++ = ins;
6077                                 ip += 2;
6078                                 break;
6079                         case CEE_MONO_NEWOBJ: {
6080                                 MonoInst *iargs [2];
6081                                 int temp;
6082                                 CHECK_STACK_OVF (1);
6083                                 CHECK_OPSIZE (6);
6084                                 token = read32 (ip + 2);
6085                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
6086                                 mono_class_init (klass);
6087                                 NEW_DOMAINCONST (cfg, iargs [0]);
6088                                 NEW_CLASSCONST (cfg, iargs [1], klass);
6089                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
6090                                 NEW_TEMPLOAD (cfg, *sp, temp);
6091                                 sp++;
6092                                 ip += 6;
6093                                 inline_costs += 10 * num_calls++;
6094                                 break;
6095                         }
6096                         case CEE_MONO_OBJADDR:
6097                                 CHECK_STACK (1);
6098                                 --sp;
6099                                 MONO_INST_NEW (cfg, ins, OP_OBJADDR);
6100                                 ins->cil_code = ip;
6101                                 ins->type = STACK_MP;
6102                                 ins->inst_left = *sp;
6103                                 *sp++ = ins;
6104                                 ip += 2;
6105                                 break;
6106                         case CEE_MONO_LDNATIVEOBJ:
6107                                 CHECK_STACK (1);
6108                                 CHECK_OPSIZE (6);
6109                                 token = read32 (ip + 2);
6110                                 klass = mono_method_get_wrapper_data (method, token);
6111                                 g_assert (klass->valuetype);
6112                                 mono_class_init (klass);
6113                                 NEW_INDLOAD (cfg, ins, sp [-1], &klass->byval_arg);
6114                                 sp [-1] = ins;
6115                                 ip += 6;
6116                                 break;
6117                         case CEE_MONO_RETOBJ:
6118                                 g_assert (cfg->ret);
6119                                 g_assert (mono_method_signature (method)->pinvoke);
6120                                 CHECK_STACK (1);
6121                                 --sp;
6122
6123                                 CHECK_OPSIZE (6);
6124                                 token = read32 (ip + 2);
6125                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
6126
6127                                 NEW_RETLOADA (cfg, ins);
6128                                 handle_stobj (cfg, bblock, ins, *sp, ip, klass, FALSE, TRUE);
6129
6130                                 if (sp != stack_start)
6131                                         goto unverified;
6132
6133                                 MONO_INST_NEW (cfg, ins, CEE_BR);
6134                                 ins->cil_code = ip;
6135                                 ins->inst_target_bb = end_bblock;
6136                                 MONO_ADD_INS (bblock, ins);
6137                                 link_bblock (cfg, bblock, end_bblock);
6138                                 start_new_bblock = 1;
6139                                 ip += 6;
6140                                 break;
6141                         case CEE_MONO_CISINST:
6142                         case CEE_MONO_CCASTCLASS: {
6143                                 int token;
6144                                 CHECK_STACK (1);
6145                                 --sp;
6146                                 CHECK_OPSIZE (6);
6147                                 token = read32 (ip + 2);
6148                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
6149                                 MONO_INST_NEW (cfg, ins, (ip [1] == CEE_MONO_CISINST) ? OP_CISINST : OP_CCASTCLASS);
6150                                 ins->type = STACK_I4;
6151                                 ins->inst_left = *sp;
6152                                 ins->inst_newa_class = klass;
6153                                 ins->cil_code = ip;
6154                                 *sp++ = emit_tree (cfg, bblock, ins, ip + 6);
6155                                 ip += 6;
6156                                 break;
6157                         }
6158                         case CEE_MONO_SAVE_LMF:
6159                         case CEE_MONO_RESTORE_LMF:
6160 #ifdef MONO_ARCH_HAVE_LMF_OPS
6161                                 MONO_INST_NEW (cfg, ins, (ip [1] == CEE_MONO_SAVE_LMF) ? OP_SAVE_LMF : OP_RESTORE_LMF);
6162                                 MONO_ADD_INS (bblock, ins);
6163                                 cfg->need_lmf_area = TRUE;
6164 #endif
6165                                 ip += 2;
6166                                 break;
6167                         case CEE_MONO_CLASSCONST:
6168                                 CHECK_STACK_OVF (1);
6169                                 CHECK_OPSIZE (6);
6170                                 token = read32 (ip + 2);
6171                                 NEW_CLASSCONST (cfg, ins, mono_method_get_wrapper_data (method, token));
6172                                 ins->cil_code = ip;
6173                                 *sp++ = ins;
6174                                 ip += 6;
6175                                 inline_costs += 10 * num_calls++;
6176                                 break;
6177                         case CEE_MONO_NOT_TAKEN:
6178                                 bblock->out_of_line = TRUE;
6179                                 ip += 2;
6180                                 break;
6181                         default:
6182                                 g_error ("opcode 0x%02x 0x%02x not handled", MONO_CUSTOM_PREFIX, ip [1]);
6183                                 break;
6184                         }
6185                         break;
6186                 }
6187                 case CEE_PREFIX1: {
6188                         CHECK_OPSIZE (2);
6189                         switch (ip [1]) {
6190                         case CEE_ARGLIST: {
6191                                 /* somewhat similar to LDTOKEN */
6192                                 MonoInst *addr, *vtvar;
6193                                 CHECK_STACK_OVF (1);
6194                                 vtvar = mono_compile_create_var (cfg, &mono_defaults.argumenthandle_class->byval_arg, OP_LOCAL);
6195
6196                                 NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
6197                                 addr->cil_code = ip;
6198                                 MONO_INST_NEW (cfg, ins, OP_ARGLIST);
6199                                 ins->cil_code = ip;
6200                                 ins->inst_left = addr;
6201                                 MONO_ADD_INS (bblock, ins);
6202                                 NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
6203                                 ins->cil_code = ip;
6204                                 *sp++ = ins;
6205                                 ip += 2;
6206                                 break;
6207                         }
6208                         case CEE_CEQ:
6209                         case CEE_CGT:
6210                         case CEE_CGT_UN:
6211                         case CEE_CLT:
6212                         case CEE_CLT_UN: {
6213                                 MonoInst *cmp;
6214                                 CHECK_STACK (2);
6215                                 /*
6216                                  * The following transforms:
6217                                  *    CEE_CEQ    into OP_CEQ
6218                                  *    CEE_CGT    into OP_CGT
6219                                  *    CEE_CGT_UN into OP_CGT_UN
6220                                  *    CEE_CLT    into OP_CLT
6221                                  *    CEE_CLT_UN into OP_CLT_UN
6222                                  */
6223                                 MONO_INST_NEW (cfg, cmp, 256 + ip [1]);
6224
6225                                 MONO_INST_NEW (cfg, ins, cmp->opcode);
6226                                 sp -= 2;
6227                                 cmp->inst_i0 = sp [0];
6228                                 cmp->inst_i1 = sp [1];
6229                                 cmp->cil_code = ip;
6230                                 type_from_op (cmp);
6231                                 CHECK_TYPE (cmp);
6232                                 if ((sp [0]->type == STACK_I8) || ((sizeof (gpointer) == 8) && ((sp [0]->type == STACK_PTR) || (sp [0]->type == STACK_OBJ) || (sp [0]->type == STACK_MP))))
6233                                         cmp->opcode = OP_LCOMPARE;
6234                                 else
6235                                         cmp->opcode = OP_COMPARE;
6236                                 ins->cil_code = ip;
6237                                 ins->type = STACK_I4;
6238                                 ins->inst_i0 = cmp;
6239                                 *sp++ = ins;
6240                                 /* spill it to reduce the expression complexity
6241                                  * and workaround bug 54209
6242                                  */
6243                                 if (cmp->inst_left->type == STACK_I8) {
6244                                         --sp;
6245                                         *sp++ = emit_tree (cfg, bblock, ins, ip + 2);
6246                                 }
6247                                 ip += 2;
6248                                 break;
6249                         }
6250                         case CEE_LDFTN: {
6251                                 MonoInst *argconst;
6252                                 int temp;
6253
6254                                 CHECK_STACK_OVF (1);
6255                                 CHECK_OPSIZE (6);
6256                                 n = read32 (ip + 2);
6257                                 cmethod = mini_get_method (method, n, NULL, generic_context);
6258                                 if (!cmethod)
6259                                         goto load_error;
6260                                 mono_class_init (cmethod->klass);
6261
6262                                 if (mono_use_security_manager) {
6263                                         check_linkdemand (cfg, method, cmethod, bblock, ip);
6264                                 }
6265
6266                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6267
6268                                 NEW_METHODCONST (cfg, argconst, cmethod);
6269                                 if (method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED)
6270                                         temp = mono_emit_jit_icall (cfg, bblock, mono_ldftn, &argconst, ip);
6271                                 else
6272                                         temp = mono_emit_jit_icall (cfg, bblock, mono_ldftn_nosync, &argconst, ip);
6273                                 NEW_TEMPLOAD (cfg, *sp, temp);
6274                                 sp ++;
6275
6276                                 ip += 6;
6277                                 inline_costs += 10 * num_calls++;
6278                                 break;
6279                         }
6280                         case CEE_LDVIRTFTN: {
6281                                 MonoInst *args [2];
6282                                 int temp;
6283
6284                                 CHECK_STACK (1);
6285                                 CHECK_OPSIZE (6);
6286                                 n = read32 (ip + 2);
6287                                 cmethod = mini_get_method (method, n, NULL, generic_context);
6288                                 if (!cmethod)
6289                                         goto load_error;
6290                                 mono_class_init (cmethod->klass);
6291
6292                                 if (mono_use_security_manager) {
6293                                         check_linkdemand (cfg, method, cmethod, bblock, ip);
6294                                 }
6295
6296                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6297
6298                                 --sp;
6299                                 args [0] = *sp;
6300                                 NEW_METHODCONST (cfg, args [1], cmethod);
6301                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldvirtfn, args, ip);
6302                                 NEW_TEMPLOAD (cfg, *sp, temp);
6303                                 sp ++;
6304
6305                                 ip += 6;
6306                                 inline_costs += 10 * num_calls++;
6307                                 break;
6308                         }
6309                         case CEE_LDARG:
6310                                 CHECK_STACK_OVF (1);
6311                                 CHECK_OPSIZE (4);
6312                                 n = read16 (ip + 2);
6313                                 CHECK_ARG (n);
6314                                 NEW_ARGLOAD (cfg, ins, n);
6315                                 ins->cil_code = ip;
6316                                 *sp++ = ins;
6317                                 ip += 4;
6318                                 break;
6319                         case CEE_LDARGA:
6320                                 CHECK_STACK_OVF (1);
6321                                 CHECK_OPSIZE (4);
6322                                 n = read16 (ip + 2);
6323                                 CHECK_ARG (n);
6324                                 NEW_ARGLOADA (cfg, ins, n);
6325                                 ins->cil_code = ip;
6326                                 *sp++ = ins;
6327                                 ip += 4;
6328                                 break;
6329                         case CEE_STARG:
6330                                 CHECK_STACK (1);
6331                                 --sp;
6332                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6333                                 CHECK_OPSIZE (4);
6334                                 n = read16 (ip + 2);
6335                                 CHECK_ARG (n);
6336                                 NEW_ARGSTORE (cfg, ins, n, *sp);
6337                                 ins->cil_code = ip;
6338                                 if (ins->opcode == CEE_STOBJ) {
6339                                         NEW_ARGLOADA (cfg, ins, n);
6340                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
6341                                 } else
6342                                         MONO_ADD_INS (bblock, ins);
6343                                 ip += 4;
6344                                 break;
6345                         case CEE_LDLOC:
6346                                 CHECK_STACK_OVF (1);
6347                                 CHECK_OPSIZE (4);
6348                                 n = read16 (ip + 2);
6349                                 CHECK_LOCAL (n);
6350                                 NEW_LOCLOAD (cfg, ins, n);
6351                                 ins->cil_code = ip;
6352                                 *sp++ = ins;
6353                                 ip += 4;
6354                                 break;
6355                         case CEE_LDLOCA:
6356                                 CHECK_STACK_OVF (1);
6357                                 CHECK_OPSIZE (4);
6358                                 n = read16 (ip + 2);
6359                                 CHECK_LOCAL (n);
6360                                 NEW_LOCLOADA (cfg, ins, n);
6361                                 ins->cil_code = ip;
6362                                 *sp++ = ins;
6363                                 ip += 4;
6364                                 break;
6365                         case CEE_STLOC:
6366                                 CHECK_STACK (1);
6367                                 --sp;
6368                                 CHECK_OPSIZE (4);
6369                                 n = read16 (ip + 2);
6370                                 CHECK_LOCAL (n);
6371                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6372                                 NEW_LOCSTORE (cfg, ins, n, *sp);
6373                                 ins->cil_code = ip;
6374                                 if (ins->opcode == CEE_STOBJ) {
6375                                         NEW_LOCLOADA (cfg, ins, n);
6376                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
6377                                 } else
6378                                         MONO_ADD_INS (bblock, ins);
6379                                 ip += 4;
6380                                 inline_costs += 1;
6381                                 break;
6382                         case CEE_LOCALLOC:
6383                                 CHECK_STACK (1);
6384                                 --sp;
6385                                 if (sp != stack_start)
6386                                         goto unverified;
6387                                 if (cfg->method != method)
6388                                         /*
6389                                          * Inlining this into a loop in a parent could lead to
6390                                          * stack overflows which is different behavior than the
6391                                          * non-inlined case, thus disable inlining in this case.
6392                                          */
6393                                         goto inline_failure;
6394                                 MONO_INST_NEW (cfg, ins, OP_LOCALLOC);
6395                                 ins->inst_left = *sp;
6396                                 ins->cil_code = ip;
6397                                 ins->type = STACK_MP;
6398
6399                                 cfg->flags |= MONO_CFG_HAS_ALLOCA;
6400                                 if (header->init_locals)
6401                                         ins->flags |= MONO_INST_INIT;
6402
6403                                 *sp++ = ins;
6404                                 ip += 2;
6405                                 /* FIXME: set init flag if locals init is set in this method */
6406                                 break;
6407                         case CEE_ENDFILTER: {
6408                                 MonoExceptionClause *clause, *nearest;
6409                                 int cc, nearest_num;
6410
6411                                 CHECK_STACK (1);
6412                                 --sp;
6413                                 if ((sp != stack_start) || (sp [0]->type != STACK_I4))
6414                                         goto unverified;
6415                                 MONO_INST_NEW (cfg, ins, OP_ENDFILTER);
6416                                 ins->inst_left = *sp;
6417                                 ins->cil_code = ip;
6418                                 MONO_ADD_INS (bblock, ins);
6419                                 start_new_bblock = 1;
6420                                 ip += 2;
6421
6422                                 nearest = NULL;
6423                                 nearest_num = 0;
6424                                 for (cc = 0; cc < header->num_clauses; ++cc) {
6425                                         clause = &header->clauses [cc];
6426                                         if ((clause->flags & MONO_EXCEPTION_CLAUSE_FILTER) &&
6427                                                 ((ip - header->code) > clause->data.filter_offset && (ip - header->code) <= clause->handler_offset) &&
6428                                             (!nearest || (clause->data.filter_offset < nearest->data.filter_offset))) {
6429                                                 nearest = clause;
6430                                                 nearest_num = cc;
6431                                         }
6432                                 }
6433                                 g_assert (nearest);
6434                                 if ((ip - header->code) != nearest->handler_offset)
6435                                         goto unverified;
6436
6437                                 break;
6438                         }
6439                         case CEE_UNALIGNED_:
6440                                 ins_flag |= MONO_INST_UNALIGNED;
6441                                 /* FIXME: record alignment? we can assume 1 for now */
6442                                 CHECK_OPSIZE (3);
6443                                 ip += 3;
6444                                 break;
6445                         case CEE_VOLATILE_:
6446                                 ins_flag |= MONO_INST_VOLATILE;
6447                                 ip += 2;
6448                                 break;
6449                         case CEE_TAIL_:
6450                                 ins_flag   |= MONO_INST_TAILCALL;
6451                                 cfg->flags |= MONO_CFG_HAS_TAIL;
6452                                 /* Can't inline tail calls at this time */
6453                                 inline_costs += 100000;
6454                                 ip += 2;
6455                                 break;
6456                         case CEE_INITOBJ:
6457                                 CHECK_STACK (1);
6458                                 --sp;
6459                                 CHECK_OPSIZE (6);
6460                                 token = read32 (ip + 2);
6461                                 klass = mini_get_class (method, token, generic_context);
6462                                 if (!klass)
6463                                         goto load_error;
6464                                 if (MONO_TYPE_IS_REFERENCE (&klass->byval_arg)) {
6465                                         MonoInst *store, *load;
6466                                         NEW_PCONST (cfg, load, NULL);
6467                                         load->cil_code = ip;
6468                                         load->type = STACK_OBJ;
6469                                         MONO_INST_NEW (cfg, store, CEE_STIND_REF);
6470                                         store->cil_code = ip;
6471                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
6472                                         MONO_ADD_INS (bblock, store);
6473                                         store->inst_i0 = sp [0];
6474                                         store->inst_i1 = load;
6475                                 } else {
6476                                         handle_initobj (cfg, bblock, *sp, NULL, klass, stack_start, sp);
6477                                 }
6478                                 ip += 6;
6479                                 inline_costs += 1;
6480                                 break;
6481                         case CEE_CONSTRAINED_:
6482                                 /* FIXME: implement */
6483                                 CHECK_OPSIZE (6);
6484                                 token = read32 (ip + 2);
6485                                 constrained_call = mono_class_get_full (image, token, generic_context);
6486                                 if (!constrained_call)
6487                                         goto load_error;
6488                                 ip += 6;
6489                                 break;
6490                         case CEE_CPBLK:
6491                         case CEE_INITBLK: {
6492                                 MonoInst *iargs [3];
6493                                 CHECK_STACK (3);
6494                                 sp -= 3;
6495                                 if ((cfg->opt & MONO_OPT_INTRINS) && (ip [1] == CEE_CPBLK) && (sp [2]->opcode == OP_ICONST) && ((n = sp [2]->inst_c0) <= sizeof (gpointer) * 5)) {
6496                                         MonoInst *copy;
6497                                         MONO_INST_NEW (cfg, copy, OP_MEMCPY);
6498                                         copy->inst_left = sp [0];
6499                                         copy->inst_right = sp [1];
6500                                         copy->cil_code = ip;
6501                                         copy->unused = n;
6502                                         MONO_ADD_INS (bblock, copy);
6503                                         ip += 2;
6504                                         break;
6505                                 }
6506                                 iargs [0] = sp [0];
6507                                 iargs [1] = sp [1];
6508                                 iargs [2] = sp [2];
6509                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
6510                                 if (ip [1] == CEE_CPBLK) {
6511                                         MonoMethod *memcpy_method = get_memcpy_method ();
6512                                         mono_emit_method_call_spilled (cfg, bblock, memcpy_method, memcpy_method->signature, iargs, ip, NULL);
6513                                 } else {
6514                                         MonoMethod *memset_method = get_memset_method ();
6515                                         mono_emit_method_call_spilled (cfg, bblock, memset_method, memset_method->signature, iargs, ip, NULL);
6516                                 }
6517                                 ip += 2;
6518                                 inline_costs += 1;
6519                                 break;
6520                         }
6521                         case CEE_NO_:
6522                                 CHECK_OPSIZE (3);
6523                                 if (ip [2] & 0x1)
6524                                         ins_flag |= MONO_INST_NOTYPECHECK;
6525                                 if (ip [2] & 0x2)
6526                                         ins_flag |= MONO_INST_NORANGECHECK;
6527                                 /* we ignore the no-nullcheck for now since we
6528                                  * really do it explicitly only when doing callvirt->call
6529                                  */
6530                                 ip += 3;
6531                                 break;
6532                         case CEE_RETHROW: {
6533                                 MonoInst *load;
6534                                 int handler_offset = -1;
6535
6536                                 for (i = 0; i < header->num_clauses; ++i) {
6537                                         MonoExceptionClause *clause = &header->clauses [i];
6538                                         if (MONO_OFFSET_IN_HANDLER (clause, ip - header->code) && !(clause->flags & MONO_EXCEPTION_CLAUSE_FINALLY))
6539                                                 handler_offset = clause->handler_offset;
6540                                 }
6541
6542                                 g_assert (handler_offset != -1);
6543
6544                                 NEW_TEMPLOAD (cfg, load, mono_find_exvar_for_offset (cfg, handler_offset)->inst_c0);
6545                                 load->cil_code = ip;
6546                                 MONO_INST_NEW (cfg, ins, OP_RETHROW);
6547                                 ins->inst_left = load;
6548                                 ins->cil_code = ip;
6549                                 MONO_ADD_INS (bblock, ins);
6550                                 sp = stack_start;
6551                                 link_bblock (cfg, bblock, end_bblock);
6552                                 start_new_bblock = 1;
6553                                 ip += 2;
6554                                 mono_get_got_var (cfg);
6555                                 break;
6556                         }
6557                         case CEE_SIZEOF:
6558                                 CHECK_STACK_OVF (1);
6559                                 CHECK_OPSIZE (6);
6560                                 token = read32 (ip + 2);
6561                                 /* FIXXME: handle generics. */
6562                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
6563                                         MonoType *type = mono_type_create_from_typespec (image, token);
6564                                         token = mono_type_size (type, &align);
6565                                 } else {
6566                                         MonoClass *klass = mono_class_get_full (image, token, generic_context);
6567                                         if (!klass)
6568                                                 goto load_error;
6569                                         mono_class_init (klass);
6570                                         token = mono_class_value_size (klass, &align);
6571                                 }
6572                                 NEW_ICONST (cfg, ins, token);
6573                                 ins->cil_code = ip;
6574                                 *sp++= ins;
6575                                 ip += 6;
6576                                 break;
6577                         case CEE_REFANYTYPE:
6578                                 CHECK_STACK (1);
6579                                 MONO_INST_NEW (cfg, ins, OP_REFANYTYPE);
6580                                 --sp;
6581                                 ins->type = STACK_MP;
6582                                 ins->inst_left = *sp;
6583                                 ins->type = STACK_VTYPE;
6584                                 ins->klass = mono_defaults.typehandle_class;
6585                                 ins->cil_code = ip;
6586                                 ip += 2;
6587                                 *sp++ = ins;
6588                                 break;
6589                         case CEE_READONLY_:
6590                                 ip += 2;
6591                                 break;
6592                         default:
6593                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
6594                         }
6595                         break;
6596                 }
6597                 default:
6598                         g_error ("opcode 0x%02x not handled", *ip);
6599                 }
6600         }
6601         if (start_new_bblock != 1)
6602                 goto unverified;
6603
6604         bblock->cil_length = ip - bblock->cil_code;
6605         bblock->next_bb = end_bblock;
6606
6607         if (cfg->method == method && cfg->domainvar) {
6608                 MonoInst *store;
6609                 MonoInst *get_domain;
6610
6611                 if (! (get_domain = mono_arch_get_domain_intrinsic (cfg))) {
6612                         MonoCallInst *call;
6613
6614                         MONO_INST_NEW_CALL (cfg, call, CEE_CALL);
6615                         call->signature = helper_sig_domain_get;
6616                         call->inst.type = STACK_PTR;
6617                         call->fptr = mono_domain_get;
6618                         get_domain = (MonoInst*)call;
6619                 }
6620
6621                 NEW_TEMPSTORE (cfg, store, cfg->domainvar->inst_c0, get_domain);
6622                 MONO_ADD_INS (init_localsbb, store);
6623         }
6624
6625         if (cfg->method == method && cfg->got_var)
6626                 mono_emit_load_got_addr (cfg);
6627
6628         if (header->init_locals) {
6629                 MonoInst *store;
6630                 for (i = 0; i < header->num_locals; ++i) {
6631                         MonoType *ptype = header->locals [i];
6632                         int t = ptype->type;
6633                         if (t == MONO_TYPE_VALUETYPE && ptype->data.klass->enumtype)
6634                                 t = ptype->data.klass->enum_basetype->type;
6635                         if (ptype->byref) {
6636                                 NEW_PCONST (cfg, ins, NULL);
6637                                 NEW_LOCSTORE (cfg, store, i, ins);
6638                                 MONO_ADD_INS (init_localsbb, store);
6639                         } else if (t >= MONO_TYPE_BOOLEAN && t <= MONO_TYPE_U4) {
6640                                 NEW_ICONST (cfg, ins, 0);
6641                                 NEW_LOCSTORE (cfg, store, i, ins);
6642                                 MONO_ADD_INS (init_localsbb, store);
6643                         } else if (t == MONO_TYPE_I8 || t == MONO_TYPE_U8) {
6644                                 MONO_INST_NEW (cfg, ins, OP_I8CONST);
6645                                 ins->type = STACK_I8;
6646                                 ins->inst_l = 0;
6647                                 NEW_LOCSTORE (cfg, store, i, ins);
6648                                 MONO_ADD_INS (init_localsbb, store);
6649                         } else if (t == MONO_TYPE_R4 || t == MONO_TYPE_R8) {
6650                                 MONO_INST_NEW (cfg, ins, OP_R8CONST);
6651                                 ins->type = STACK_R8;
6652                                 ins->inst_p0 = (void*)&r8_0;
6653                                 NEW_LOCSTORE (cfg, store, i, ins);
6654                                 MONO_ADD_INS (init_localsbb, store);
6655                         } else if ((t == MONO_TYPE_VALUETYPE) || (t == MONO_TYPE_TYPEDBYREF) ||
6656                                    ((t == MONO_TYPE_GENERICINST) && mono_metadata_generic_class_is_valuetype (ptype->data.generic_class))) {
6657                                 NEW_LOCLOADA (cfg, ins, i);
6658                                 handle_initobj (cfg, init_localsbb, ins, NULL, mono_class_from_mono_type (ptype), NULL, NULL);
6659                         } else {
6660                                 NEW_PCONST (cfg, ins, NULL);
6661                                 NEW_LOCSTORE (cfg, store, i, ins);
6662                                 MONO_ADD_INS (init_localsbb, store);
6663                         }
6664                 }
6665         }
6666
6667         /* resolve backward branches in the middle of an existing basic block */
6668         for (tmp = bb_recheck; tmp; tmp = tmp->next) {
6669                 bblock = tmp->data;
6670                 /*g_print ("need recheck in %s at IL_%04x\n", method->name, bblock->cil_code - header->code);*/
6671                 tblock = find_previous (bbhash, start_bblock, bblock->cil_code);
6672                 if (tblock != start_bblock) {
6673                         int l;
6674                         split_bblock (cfg, tblock, bblock);
6675                         l = bblock->cil_code - header->code;
6676                         bblock->cil_length = tblock->cil_length - l;
6677                         tblock->cil_length = l;
6678                 } else {
6679                         g_print ("recheck failed.\n");
6680                 }
6681         }
6682
6683         if (cfg->method == method) {
6684                 MonoBasicBlock *bb;
6685                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
6686                         bb->region = mono_find_block_region (cfg, bb->real_offset);
6687                         if (cfg->spvars)
6688                                 mono_create_spvar_for_region (cfg, bb->region);
6689                         if (cfg->verbose_level > 2)
6690                                 g_print ("REGION BB%d IL_%04x ID_%08X\n", bb->block_num, bb->real_offset, bb->region);
6691                 }
6692         } else {
6693                 g_hash_table_destroy (bbhash);
6694         }
6695
6696         g_slist_free (class_inits);
6697         dont_inline = g_list_remove (dont_inline, method);
6698         return inline_costs;
6699
6700  inline_failure:
6701         if (cfg->method != method)
6702                 g_hash_table_destroy (bbhash);
6703         g_slist_free (class_inits);
6704         dont_inline = g_list_remove (dont_inline, method);
6705         return -1;
6706
6707  load_error:
6708         if (cfg->method != method)
6709                 g_hash_table_destroy (bbhash);
6710         g_slist_free (class_inits);
6711         dont_inline = g_list_remove (dont_inline, method);
6712         return -1;
6713
6714  unverified:
6715         if (cfg->method != method)
6716                 g_hash_table_destroy (bbhash);
6717         g_slist_free (class_inits);
6718         g_error ("Invalid IL code at IL%04x in %s: %s\n", (int)(ip - header->code),
6719                  mono_method_full_name (method, TRUE), mono_disasm_code_one (NULL, method, ip, NULL));
6720         dont_inline = g_list_remove (dont_inline, method);
6721         return -1;
6722 }
6723
6724 void
6725 mono_print_tree (MonoInst *tree) {
6726         int arity;
6727
6728         if (!tree)
6729                 return;
6730
6731         arity = mono_burg_arity [tree->opcode];
6732
6733         printf (" %s%s", arity?"(":"",  mono_inst_name (tree->opcode));
6734
6735         switch (tree->opcode) {
6736         case OP_ICONST:
6737                 printf ("[%d]", (int)tree->inst_c0);
6738                 break;
6739         case OP_I8CONST:
6740                 printf ("[%lld]", (long long)tree->inst_l);
6741                 break;
6742         case OP_R8CONST:
6743                 printf ("[%f]", *(double*)tree->inst_p0);
6744                 break;
6745         case OP_R4CONST:
6746                 printf ("[%f]", *(float*)tree->inst_p0);
6747                 break;
6748         case OP_ARG:
6749         case OP_LOCAL:
6750                 printf ("[%d]", (int)tree->inst_c0);
6751                 break;
6752         case OP_REGOFFSET:
6753                 if (tree->inst_offset < 0)
6754                         printf ("[-0x%x(%s)]", (int)(-tree->inst_offset), mono_arch_regname (tree->inst_basereg));
6755                 else
6756                         printf ("[0x%x(%s)]", (int)(tree->inst_offset), mono_arch_regname (tree->inst_basereg));
6757                 break;
6758         case OP_REGVAR:
6759                 printf ("[%s]", mono_arch_regname (tree->dreg));
6760                 break;
6761         case CEE_NEWARR:
6762                 printf ("[%s]",  tree->inst_newa_class->name);
6763                 mono_print_tree (tree->inst_newa_len);
6764                 break;
6765         case CEE_CALL:
6766         case CEE_CALLVIRT:
6767         case OP_FCALL:
6768         case OP_FCALLVIRT:
6769         case OP_LCALL:
6770         case OP_LCALLVIRT:
6771         case OP_VCALL:
6772         case OP_VCALLVIRT:
6773         case OP_VOIDCALL:
6774         case OP_VOIDCALLVIRT: {
6775                 MonoCallInst *call = (MonoCallInst*)tree;
6776                 if (call->method)
6777                         printf ("[%s]", call->method->name);
6778                 else if (call->fptr) {
6779                         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (call->fptr);
6780                         if (info)
6781                                 printf ("[%s]", info->name);
6782                 }
6783                 break;
6784         }
6785         case OP_PHI: {
6786                 int i;
6787                 printf ("[%d (", (int)tree->inst_c0);
6788                 for (i = 0; i < tree->inst_phi_args [0]; i++) {
6789                         if (i)
6790                                 printf (", ");
6791                         printf ("%d", tree->inst_phi_args [i + 1]);
6792                 }
6793                 printf (")]");
6794                 break;
6795         }
6796         case OP_RENAME:
6797         case OP_RETARG:
6798         case CEE_NOP:
6799         case CEE_JMP:
6800         case CEE_BREAK:
6801                 break;
6802         case OP_LOAD_MEMBASE:
6803         case OP_LOADI4_MEMBASE:
6804         case OP_LOADU4_MEMBASE:
6805         case OP_LOADU1_MEMBASE:
6806         case OP_LOADI1_MEMBASE:
6807         case OP_LOADU2_MEMBASE:
6808         case OP_LOADI2_MEMBASE:
6809                 printf ("[%s] <- [%s + 0x%x]", mono_arch_regname (tree->dreg), mono_arch_regname (tree->inst_basereg), (int)tree->inst_offset);
6810                 break;
6811         case CEE_BR:
6812         case OP_CALL_HANDLER:
6813                 printf ("[B%d]", tree->inst_target_bb->block_num);
6814                 break;
6815         case CEE_SWITCH:
6816         case CEE_ISINST:
6817         case CEE_CASTCLASS:
6818         case OP_OUTARG:
6819         case OP_CALL_REG:
6820         case OP_FCALL_REG:
6821         case OP_LCALL_REG:
6822         case OP_VCALL_REG:
6823         case OP_VOIDCALL_REG:
6824                 mono_print_tree (tree->inst_left);
6825                 break;
6826         case CEE_BNE_UN:
6827         case CEE_BEQ:
6828         case CEE_BLT:
6829         case CEE_BLT_UN:
6830         case CEE_BGT:
6831         case CEE_BGT_UN:
6832         case CEE_BGE:
6833         case CEE_BGE_UN:
6834         case CEE_BLE:
6835         case CEE_BLE_UN:
6836                 printf ("[B%dB%d]", tree->inst_true_bb->block_num, tree->inst_false_bb->block_num);
6837                 mono_print_tree (tree->inst_left);
6838                 break;
6839         default:
6840                 if (!mono_arch_print_tree(tree, arity)) {
6841                         if (arity) {
6842                                 mono_print_tree (tree->inst_left);
6843                                 if (arity > 1)
6844                                         mono_print_tree (tree->inst_right);
6845                         }
6846                 }
6847                 break;
6848         }
6849
6850         if (arity)
6851                 printf (")");
6852 }
6853
6854 void
6855 mono_print_tree_nl (MonoInst *tree)
6856 {
6857         mono_print_tree (tree);
6858         printf ("\n");
6859 }
6860
6861 static void
6862 create_helper_signature (void)
6863 {
6864         helper_sig_domain_get = mono_create_icall_signature ("ptr");
6865         helper_sig_class_init_trampoline = mono_create_icall_signature ("void");
6866 }
6867
6868 gconstpointer
6869 mono_icall_get_wrapper (MonoJitICallInfo* callinfo)
6870 {
6871         char *name;
6872         MonoMethod *wrapper;
6873         gconstpointer code;
6874
6875         if (callinfo->wrapper)
6876                 return callinfo->wrapper;
6877
6878         name = g_strdup_printf ("__icall_wrapper_%s", callinfo->name);
6879         wrapper = mono_marshal_get_icall_wrapper (callinfo->sig, name, callinfo->func);
6880         /* Must be domain neutral since there is only one copy */
6881         code = mono_jit_compile_method_with_opt (wrapper, default_opt | MONO_OPT_SHARED);
6882
6883         if (!callinfo->wrapper) {
6884                 callinfo->wrapper = code;
6885                 mono_register_jit_icall_wrapper (callinfo, code);
6886                 mono_debug_add_icall_wrapper (wrapper, callinfo);
6887         }
6888
6889         g_free (name);
6890         return callinfo->wrapper;
6891 }
6892
6893 static void
6894 mono_init_trampolines (void)
6895 {
6896         mono_trampoline_code [MONO_TRAMPOLINE_GENERIC] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_GENERIC);
6897         mono_trampoline_code [MONO_TRAMPOLINE_JUMP] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_JUMP);
6898         mono_trampoline_code [MONO_TRAMPOLINE_CLASS_INIT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_CLASS_INIT);
6899 #ifdef MONO_ARCH_HAVE_PIC_AOT
6900         mono_trampoline_code [MONO_TRAMPOLINE_AOT] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_AOT);
6901 #endif
6902 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
6903         mono_trampoline_code [MONO_TRAMPOLINE_DELEGATE] = mono_arch_create_trampoline_code (MONO_TRAMPOLINE_DELEGATE);
6904 #endif
6905 }
6906
6907 static void
6908 mono_init_exceptions (void)
6909 {
6910         mono_arch_get_restore_context ();
6911         mono_arch_get_call_filter ();
6912         mono_arch_get_throw_exception ();
6913         mono_arch_get_rethrow_exception ();
6914 }
6915
6916 guint8 *
6917 mono_get_trampoline_code (MonoTrampolineType tramp_type)
6918 {
6919         return mono_trampoline_code [tramp_type];
6920 }
6921
6922 gpointer
6923 mono_create_class_init_trampoline (MonoVTable *vtable)
6924 {
6925         gpointer code, ptr;
6926
6927         /* previously created trampoline code */
6928         mono_domain_lock (vtable->domain);
6929         ptr =
6930                 g_hash_table_lookup (vtable->domain->class_init_trampoline_hash,
6931                                                                   vtable);
6932         mono_domain_unlock (vtable->domain);
6933         if (ptr)
6934                 return ptr;
6935
6936 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
6937         code = mono_arch_create_specific_trampoline (vtable, MONO_TRAMPOLINE_CLASS_INIT, vtable->domain, NULL);
6938 #else
6939         code = mono_arch_create_class_init_trampoline (vtable);
6940 #endif
6941
6942         ptr = mono_create_ftnptr (vtable->domain, code);
6943
6944         /* store trampoline address */
6945         mono_domain_lock (vtable->domain);
6946         g_hash_table_insert (vtable->domain->class_init_trampoline_hash,
6947                                                           vtable, ptr);
6948         mono_domain_unlock (vtable->domain);
6949
6950         EnterCriticalSection (&jit_mutex);
6951         if (!class_init_hash_addr)
6952                 class_init_hash_addr = g_hash_table_new (NULL, NULL);
6953         g_hash_table_insert (class_init_hash_addr, ptr, vtable);
6954         LeaveCriticalSection (&jit_mutex);
6955
6956         return ptr;
6957 }
6958
6959 gpointer
6960 mono_create_jump_trampoline (MonoDomain *domain, MonoMethod *method,
6961                                                          gboolean add_sync_wrapper)
6962 {
6963         MonoJitInfo *ji;
6964         gpointer code;
6965 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
6966         guint32 code_size;
6967 #endif
6968
6969         if (add_sync_wrapper && method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
6970                 return mono_create_jump_trampoline (domain, mono_marshal_get_synchronized_wrapper (method), FALSE);
6971
6972         code = mono_jit_find_compiled_method (domain, method);
6973         if (code)
6974                 return code;
6975
6976         mono_domain_lock (domain);
6977         code = g_hash_table_lookup (domain->jump_trampoline_hash, method);
6978         mono_domain_unlock (domain);
6979         if (code)
6980                 return code;
6981
6982 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
6983         code = mono_arch_create_specific_trampoline (method, MONO_TRAMPOLINE_JUMP, mono_domain_get (), &code_size);
6984
6985         ji = g_new0 (MonoJitInfo, 1);
6986         ji->code_start = code;
6987         ji->code_size = code_size;
6988         ji->method = method;
6989 #else
6990         ji = mono_arch_create_jump_trampoline (method);
6991 #endif
6992
6993         /*
6994          * mono_delegate_ctor needs to find the method metadata from the
6995          * trampoline address, so we save it here.
6996          */
6997
6998         mono_jit_info_table_add (domain, ji);
6999
7000         mono_domain_lock (domain);
7001         g_hash_table_insert (domain->jump_trampoline_hash, method, ji->code_start);
7002         mono_domain_unlock (domain);
7003
7004         return ji->code_start;
7005 }
7006
7007 gpointer
7008 mono_create_jit_trampoline (MonoMethod *method)
7009 {
7010         MonoDomain *domain = mono_domain_get ();
7011         gpointer tramp;
7012
7013         mono_domain_lock (domain);
7014         tramp = g_hash_table_lookup (domain->jit_trampoline_hash, method);
7015         mono_domain_unlock (domain);
7016         if (tramp)
7017                 return tramp;
7018
7019         if (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
7020                 return mono_create_jit_trampoline (mono_marshal_get_synchronized_wrapper (method));
7021
7022 #ifdef MONO_ARCH_HAVE_CREATE_SPECIFIC_TRAMPOLINE
7023         tramp =  mono_arch_create_specific_trampoline (method, MONO_TRAMPOLINE_GENERIC, mono_domain_get (), NULL);
7024 #else
7025         tramp = mono_arch_create_jit_trampoline (method);
7026 #endif
7027
7028         mono_domain_lock (domain);
7029         g_hash_table_insert (domain->jit_trampoline_hash, method, tramp);
7030         mono_domain_unlock (domain);
7031
7032         mono_jit_stats.method_trampolines++;
7033
7034         return tramp;
7035 }
7036
7037 #ifdef MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
7038 gpointer
7039 mono_create_jit_trampoline_from_token (MonoImage *image, guint32 token)
7040 {
7041         gpointer tramp;
7042
7043         MonoDomain *domain = mono_domain_get ();
7044         guint8 *buf, *start;
7045
7046         mono_domain_lock (domain);
7047         buf = start = mono_code_manager_reserve (domain->code_mp, 2 * sizeof (gpointer));
7048         mono_domain_unlock (domain);
7049
7050         *(gpointer*)(gpointer)buf = image;
7051         buf += sizeof (gpointer);
7052         *(guint32*)(gpointer)buf = token;
7053
7054         tramp = mono_arch_create_specific_trampoline (start, MONO_TRAMPOLINE_AOT, domain, NULL);
7055
7056         mono_jit_stats.method_trampolines++;
7057
7058         return tramp;
7059 }
7060 #endif
7061
7062 gpointer
7063 mono_create_delegate_trampoline (MonoMethod *method, gpointer addr)
7064 {
7065 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
7066         gpointer code, ptr;
7067         guint32 code_size;
7068         MonoDomain *domain = mono_domain_get ();
7069
7070 #ifndef __ia64__
7071         code = mono_jit_find_compiled_method (domain, method);
7072         if (code)
7073                 return code;
7074 #else
7075         /*
7076          * FIXME: We should return a function descriptor here but it is not stored
7077          * anywhere so it would be leaked.
7078          */
7079 #endif
7080
7081         mono_domain_lock (domain);
7082         ptr = g_hash_table_lookup (domain->delegate_trampoline_hash, method);
7083         mono_domain_unlock (domain);
7084         if (ptr)
7085                 return ptr;
7086
7087         code = mono_arch_create_specific_trampoline (method, MONO_TRAMPOLINE_DELEGATE, domain, &code_size);
7088
7089         ptr = mono_create_ftnptr (domain, code);
7090
7091         /* store trampoline address */
7092         mono_domain_lock (domain);
7093         g_hash_table_insert (domain->delegate_trampoline_hash,
7094                                                           method, ptr);
7095         mono_domain_unlock (domain);
7096
7097         return ptr;
7098 #else
7099         return addr;
7100 #endif
7101 }
7102
7103 MonoVTable*
7104 mono_find_class_init_trampoline_by_addr (gconstpointer addr)
7105 {
7106         MonoVTable *res;
7107
7108         EnterCriticalSection (&jit_mutex);
7109         if (class_init_hash_addr)
7110                 res = g_hash_table_lookup (class_init_hash_addr, addr);
7111         else
7112                 res = NULL;
7113         LeaveCriticalSection (&jit_mutex);
7114         return res;
7115 }
7116
7117 static void
7118 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
7119 {
7120         if (!domain->dynamic_code_hash)
7121                 domain->dynamic_code_hash = g_hash_table_new (NULL, NULL);
7122         g_hash_table_insert (domain->dynamic_code_hash, method, ji);
7123 }
7124
7125 static MonoJitDynamicMethodInfo*
7126 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
7127 {
7128         MonoJitDynamicMethodInfo *res;
7129
7130         if (domain->dynamic_code_hash)
7131                 res = g_hash_table_lookup (domain->dynamic_code_hash, method);
7132         else
7133                 res = NULL;
7134         return res;
7135 }
7136
7137 typedef struct {
7138         MonoClass *vtype;
7139         GList *active;
7140         GList *slots;
7141 } StackSlotInfo;
7142
7143 /*
7144  * mono_allocate_stack_slots_full:
7145  *
7146  *  Allocate stack slots for all non register allocated variables using a
7147  * linear scan algorithm.
7148  * Returns: an array of stack offsets which the caller should free.
7149  * STACK_SIZE is set to the amount of stack space needed.
7150  * STACK_ALIGN is set to the alignment needed by the locals area.
7151  */
7152 gint32*
7153 mono_allocate_stack_slots_full (MonoCompile *m, gboolean backward, guint32 *stack_size, guint32 *stack_align)
7154 {
7155         int i, slot, offset, size, align;
7156         MonoMethodVar *vmv;
7157         MonoInst *inst;
7158         gint32 *offsets;
7159         GList *vars = NULL, *l;
7160         StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
7161         MonoType *t;
7162         int nvtypes;
7163
7164         scalar_stack_slots = g_new0 (StackSlotInfo, MONO_TYPE_PINNED);
7165         vtype_stack_slots = g_new0 (StackSlotInfo, 256);
7166         nvtypes = 0;
7167
7168         offsets = g_new (gint32, m->num_varinfo);
7169         for (i = 0; i < m->num_varinfo; ++i)
7170                 offsets [i] = -1;
7171
7172         for (i = m->locals_start; i < m->num_varinfo; i++) {
7173                 inst = m->varinfo [i];
7174                 vmv = MONO_VARINFO (m, i);
7175
7176                 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
7177                         continue;
7178
7179                 vars = g_list_prepend (vars, vmv);
7180         }
7181
7182         vars = mono_varlist_sort (m, vars, 0);
7183         offset = 0;
7184         *stack_align = 0;
7185         for (l = vars; l; l = l->next) {
7186                 vmv = l->data;
7187                 inst = m->varinfo [vmv->idx];
7188
7189                 /* inst->unused indicates native sized value types, this is used by the
7190                 * pinvoke wrappers when they call functions returning structures */
7191                 if (inst->unused && MONO_TYPE_ISSTRUCT (inst->inst_vtype) && inst->inst_vtype->type != MONO_TYPE_TYPEDBYREF)
7192                         size = mono_class_native_size (inst->inst_vtype->data.klass, &align);
7193                 else
7194                         size = mono_type_size (inst->inst_vtype, &align);
7195
7196                 t = mono_type_get_underlying_type (inst->inst_vtype);
7197                 switch (t->type) {
7198                 case MONO_TYPE_VALUETYPE:
7199                         for (i = 0; i < nvtypes; ++i)
7200                                 if (t->data.klass == vtype_stack_slots [i].vtype)
7201                                         break;
7202                         if (i < nvtypes)
7203                                 slot_info = &vtype_stack_slots [i];
7204                         else {
7205                                 g_assert (nvtypes < 256);
7206                                 vtype_stack_slots [nvtypes].vtype = t->data.klass;
7207                                 slot_info = &vtype_stack_slots [nvtypes];
7208                                 nvtypes ++;
7209                         }
7210                         break;
7211                 default:
7212                         slot_info = &scalar_stack_slots [t->type];
7213                 }
7214
7215                 slot = 0xffffff;
7216                 if (m->comp_done & MONO_COMP_LIVENESS) {
7217                         //printf ("START  %2d %08x %08x\n",  vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
7218
7219                         /* expire old intervals in active */
7220                         while (slot_info->active) {
7221                                 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
7222
7223                                 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
7224                                         break;
7225
7226                                 //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);
7227
7228                                 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
7229                                 slot_info->slots = g_list_prepend (slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
7230                         }
7231
7232                         /*
7233                          * This also handles the case when the variable is used in an
7234                          * exception region, as liveness info is not computed there.
7235                          */
7236                         /*
7237                          * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
7238                          * opcodes.
7239                          */
7240                         if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
7241                                 if (slot_info->slots) {
7242                                         slot = GPOINTER_TO_INT (slot_info->slots->data);
7243
7244                                         slot_info->slots = g_list_delete_link (slot_info->slots, slot_info->slots);
7245                                 }
7246
7247                                 slot_info->active = mono_varlist_insert_sorted (m, slot_info->active, vmv, TRUE);
7248                         }
7249                 }
7250
7251                 {
7252                         static int count = 0;
7253                         count ++;
7254
7255                         /*
7256                         if (count == atoi (getenv ("COUNT")))
7257                                 printf ("LAST: %s\n", mono_method_full_name (m->method, TRUE));
7258                         if (count > atoi (getenv ("COUNT")))
7259                                 slot = 0xffffff;
7260                         else {
7261                                 mono_print_tree_nl (inst);
7262                                 }
7263                         */
7264                 }
7265                 if (slot == 0xffffff) {
7266                         /*
7267                          * Allways allocate valuetypes to sizeof (gpointer) to allow more
7268                          * efficient copying (and to work around the fact that OP_MEMCPY
7269                          * and OP_MEMSET ignores alignment).
7270                          */
7271                         if (t->type == MONO_TYPE_VALUETYPE)
7272                                 align = sizeof (gpointer);
7273
7274                         if (backward) {
7275                                 offset += size;
7276                                 offset += align - 1;
7277                                 offset &= ~(align - 1);
7278                                 slot = offset;
7279                         }
7280                         else {
7281                                 offset += align - 1;
7282                                 offset &= ~(align - 1);
7283                                 slot = offset;
7284                                 offset += size;
7285                         }
7286
7287                         if (*stack_align == 0)
7288                                 *stack_align = align;
7289                 }
7290
7291                 offsets [vmv->idx] = slot;
7292         }
7293         g_list_free (vars);
7294         for (i = 0; i < MONO_TYPE_PINNED; ++i) {
7295                 g_list_free (scalar_stack_slots [i].active);
7296                 g_list_free (scalar_stack_slots [i].slots);
7297         }
7298         for (i = 0; i < nvtypes; ++i) {
7299                 g_list_free (vtype_stack_slots [i].active);
7300                 g_list_free (vtype_stack_slots [i].slots);
7301         }
7302         g_free (scalar_stack_slots);
7303         g_free (vtype_stack_slots);
7304
7305         *stack_size = offset;
7306         return offsets;
7307 }
7308
7309 gint32*
7310 mono_allocate_stack_slots (MonoCompile *m, guint32 *stack_size, guint32 *stack_align)
7311 {
7312         return mono_allocate_stack_slots_full (m, TRUE, stack_size, stack_align);
7313 }
7314
7315 void
7316 mono_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, gboolean no_throw)
7317 {
7318         MonoJitICallInfo *info;
7319         MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
7320
7321         if (!emul_opcode_map)
7322                 emul_opcode_map = g_new0 (MonoJitICallInfo*, OP_LAST + 1);
7323
7324         g_assert (!sig->hasthis);
7325         g_assert (sig->param_count < 3);
7326
7327         info = mono_register_jit_icall (func, name, sig, no_throw);
7328
7329         emul_opcode_map [opcode] = info;
7330 }
7331
7332 static void
7333 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
7334 {
7335         MonoMethodSignature *sig;
7336
7337         if (sigstr)
7338                 sig = mono_create_icall_signature (sigstr);
7339         else
7340                 sig = NULL;
7341
7342         mono_register_jit_icall (func, name, sig, save);
7343 }
7344
7345 static void
7346 decompose_foreach (MonoInst *tree, gpointer data)
7347 {
7348         static MonoJitICallInfo *newarr_info = NULL;
7349         static MonoJitICallInfo *newarr_specific_info = NULL;
7350         MonoJitICallInfo *info;
7351         int i;
7352
7353         switch (tree->opcode) {
7354         case CEE_NEWARR: {
7355                 MonoCompile *cfg = data;
7356                 MonoInst *iargs [3];
7357
7358                 if (!newarr_info) {
7359                         newarr_info = mono_find_jit_icall_by_addr (mono_array_new);
7360                         g_assert (newarr_info);
7361                         newarr_specific_info = mono_find_jit_icall_by_addr (mono_array_new_specific);
7362                         g_assert (newarr_specific_info);
7363                 }
7364
7365                 if (cfg->opt & MONO_OPT_SHARED) {
7366                         NEW_DOMAINCONST (cfg, iargs [0]);
7367                         NEW_CLASSCONST (cfg, iargs [1], tree->inst_newa_class);
7368                         iargs [2] = tree->inst_newa_len;
7369
7370                         info = newarr_info;
7371                 }
7372                 else {
7373                         MonoVTable *vtable = mono_class_vtable (cfg->domain, mono_array_class_get (tree->inst_newa_class, 1));
7374
7375                         NEW_VTABLECONST (cfg, iargs [0], vtable);
7376                         iargs [1] = tree->inst_newa_len;
7377
7378                         info = newarr_specific_info;
7379                 }
7380
7381                 mono_emulate_opcode (cfg, tree, iargs, info);
7382
7383                 /* Need to decompose arguments after the the opcode is decomposed */
7384                 for (i = 0; i < info->sig->param_count; ++i)
7385                         dec_foreach (iargs [i], cfg);
7386                 break;
7387         }
7388
7389         default:
7390                 break;
7391         }
7392 }
7393
7394 void
7395 mono_inst_foreach (MonoInst *tree, MonoInstFunc func, gpointer data) {
7396
7397         switch (mono_burg_arity [tree->opcode]) {
7398         case 0: break;
7399         case 1:
7400                 mono_inst_foreach (tree->inst_left, func, data);
7401                 break;
7402         case 2:
7403                 mono_inst_foreach (tree->inst_left, func, data);
7404                 mono_inst_foreach (tree->inst_right, func, data);
7405                 break;
7406         default:
7407                 g_assert_not_reached ();
7408         }
7409         func (tree, data);
7410 }
7411
7412 G_GNUC_UNUSED
7413 static void
7414 mono_print_bb_code (MonoBasicBlock *bb) {
7415         if (bb->code) {
7416                 MonoInst *c = bb->code;
7417                 while (c) {
7418                         mono_print_tree (c);
7419                         g_print ("\n");
7420                         c = c->next;
7421                 }
7422         }
7423 }
7424
7425 static void
7426 print_dfn (MonoCompile *cfg) {
7427         int i, j;
7428         char *code;
7429         MonoBasicBlock *bb;
7430
7431         g_print ("IR code for method %s\n", mono_method_full_name (cfg->method, TRUE));
7432
7433         for (i = 0; i < cfg->num_bblocks; ++i) {
7434                 bb = cfg->bblocks [i];
7435                 /*if (bb->cil_code) {
7436                         char* code1, *code2;
7437                         code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
7438                         if (bb->last_ins->cil_code)
7439                                 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
7440                         else
7441                                 code2 = g_strdup ("");
7442
7443                         code1 [strlen (code1) - 1] = 0;
7444                         code = g_strdup_printf ("%s -> %s", code1, code2);
7445                         g_free (code1);
7446                         g_free (code2);
7447                 } else*/
7448                         code = g_strdup ("\n");
7449                 g_print ("\nBB%d DFN%d (len: %d): %s", bb->block_num, i, bb->cil_length, code);
7450                 if (bb->code) {
7451                         MonoInst *c = bb->code;
7452                         while (c) {
7453                                 mono_print_tree (c);
7454                                 g_print ("\n");
7455                                 c = c->next;
7456                         }
7457                 } else {
7458
7459                 }
7460
7461                 g_print ("\tprev:");
7462                 for (j = 0; j < bb->in_count; ++j) {
7463                         g_print (" BB%d", bb->in_bb [j]->block_num);
7464                 }
7465                 g_print ("\t\tsucc:");
7466                 for (j = 0; j < bb->out_count; ++j) {
7467                         g_print (" BB%d", bb->out_bb [j]->block_num);
7468                 }
7469                 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
7470
7471                 if (bb->idom)
7472                         g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
7473
7474                 if (bb->dominators)
7475                         mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
7476                 if (bb->dfrontier)
7477                         mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
7478                 g_free (code);
7479         }
7480
7481         g_print ("\n");
7482 }
7483
7484 void
7485 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
7486 {
7487         inst->next = NULL;
7488         if (bb->last_ins) {
7489                 g_assert (bb->code);
7490                 bb->last_ins->next = inst;
7491                 bb->last_ins = inst;
7492         } else {
7493                 bb->last_ins = bb->code = inst;
7494         }
7495 }
7496
7497 void
7498 mono_destroy_compile (MonoCompile *cfg)
7499 {
7500         //mono_mempool_stats (cfg->mempool);
7501         g_hash_table_destroy (cfg->bb_hash);
7502         mono_free_loop_info (cfg);
7503         if (cfg->rs)
7504                 mono_regstate_free (cfg->rs);
7505         if (cfg->spvars)
7506                 g_hash_table_destroy (cfg->spvars);
7507         if (cfg->exvars)
7508                 g_hash_table_destroy (cfg->exvars);
7509         mono_mempool_destroy (cfg->mempool);
7510         g_list_free (cfg->ldstr_list);
7511
7512         g_free (cfg->varinfo);
7513         g_free (cfg->vars);
7514         g_free (cfg);
7515 }
7516
7517 #ifdef HAVE_KW_THREAD
7518 static __thread gpointer mono_lmf_addr MONO_TLS_FAST;
7519 #endif
7520
7521 guint32
7522 mono_get_jit_tls_key (void)
7523 {
7524         return mono_jit_tls_id;
7525 }
7526
7527 gint32
7528 mono_get_lmf_tls_offset (void)
7529 {
7530         int offset;
7531         MONO_THREAD_VAR_OFFSET(mono_lmf_addr,offset);
7532         return offset;
7533 }
7534
7535 MonoLMF **
7536 mono_get_lmf_addr (void)
7537 {
7538 #ifdef HAVE_KW_THREAD
7539         return mono_lmf_addr;
7540 #else
7541         MonoJitTlsData *jit_tls;
7542
7543         if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
7544                 return &jit_tls->lmf;
7545
7546         g_assert_not_reached ();
7547         return NULL;
7548 #endif
7549 }
7550
7551 /* Called by native->managed wrappers */
7552 void
7553 mono_jit_thread_attach (MonoDomain *domain)
7554 {
7555 #ifdef HAVE_KW_THREAD
7556         if (!mono_lmf_addr) {
7557                 mono_thread_attach (domain);
7558         }
7559 #else
7560         if (!TlsGetValue (mono_jit_tls_id))
7561                 mono_thread_attach (domain);
7562 #endif
7563 }
7564
7565 /**
7566  * mono_thread_abort:
7567  * @obj: exception object
7568  *
7569  * abort the thread, print exception information and stack trace
7570  */
7571 static void
7572 mono_thread_abort (MonoObject *obj)
7573 {
7574         /* MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id); */
7575
7576         /* handle_remove should be eventually called for this thread, too
7577         g_free (jit_tls);*/
7578
7579         mono_thread_exit ();
7580 }
7581
7582 static void*
7583 setup_jit_tls_data (gpointer stack_start, gpointer abort_func)
7584 {
7585         MonoJitTlsData *jit_tls;
7586         MonoLMF *lmf;
7587
7588         jit_tls = TlsGetValue (mono_jit_tls_id);
7589         if (jit_tls)
7590                 return jit_tls;
7591
7592         jit_tls = g_new0 (MonoJitTlsData, 1);
7593
7594         TlsSetValue (mono_jit_tls_id, jit_tls);
7595
7596         jit_tls->abort_func = abort_func;
7597         jit_tls->end_of_stack = stack_start;
7598
7599         lmf = g_new0 (MonoLMF, 1);
7600         lmf->ebp = -1;
7601
7602         jit_tls->lmf = jit_tls->first_lmf = lmf;
7603
7604 #ifdef HAVE_KW_THREAD
7605         mono_lmf_addr = &jit_tls->lmf;
7606 #endif
7607
7608         mono_arch_setup_jit_tls_data (jit_tls);
7609
7610 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
7611         mono_setup_altstack (jit_tls);
7612 #endif
7613
7614         return jit_tls;
7615 }
7616
7617 static void
7618 mono_thread_start_cb (gsize tid, gpointer stack_start, gpointer func)
7619 {
7620         MonoThread *thread;
7621         void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort);
7622         thread = mono_thread_current ();
7623         if (thread)
7624                 thread->jit_data = jit_tls;
7625 }
7626
7627 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
7628
7629 static void
7630 mono_thread_abort_dummy (MonoObject *obj)
7631 {
7632   if (mono_thread_attach_aborted_cb)
7633     mono_thread_attach_aborted_cb (obj);
7634   else
7635     mono_thread_abort (obj);
7636 }
7637
7638 static void
7639 mono_thread_attach_cb (gsize tid, gpointer stack_start)
7640 {
7641         MonoThread *thread;
7642         void *jit_tls = setup_jit_tls_data (stack_start, mono_thread_abort_dummy);
7643         thread = mono_thread_current ();
7644         if (thread)
7645                 thread->jit_data = jit_tls;
7646         if (mono_profiler_get_events () & MONO_PROFILE_STATISTICAL)
7647                 setup_stat_profiler ();
7648 }
7649
7650 static void
7651 mini_thread_cleanup (MonoThread *thread)
7652 {
7653         MonoJitTlsData *jit_tls = thread->jit_data;
7654
7655         if (jit_tls) {
7656                 mono_arch_free_jit_tls_data (jit_tls);
7657                 g_free (jit_tls->first_lmf);
7658                 g_free (jit_tls);
7659                 thread->jit_data = NULL;
7660
7661 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
7662                 mono_free_altstack (jit_tls);
7663 #endif
7664         }
7665 }
7666
7667 void
7668 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
7669 {
7670         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
7671
7672         ji->ip.i = ip;
7673         ji->type = type;
7674         ji->data.target = target;
7675         ji->next = cfg->patch_info;
7676
7677         cfg->patch_info = ji;
7678 }
7679
7680 void
7681 mono_remove_patch_info (MonoCompile *cfg, int ip)
7682 {
7683         MonoJumpInfo **ji = &cfg->patch_info;
7684
7685         while (*ji) {
7686                 if ((*ji)->ip.i == ip)
7687                         *ji = (*ji)->next;
7688                 else
7689                         ji = &((*ji)->next);
7690         }
7691 }
7692
7693 gpointer
7694 mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors)
7695 {
7696         unsigned char *ip = patch_info->ip.i + code;
7697         gconstpointer target = NULL;
7698
7699         switch (patch_info->type) {
7700         case MONO_PATCH_INFO_BB:
7701                 target = patch_info->data.bb->native_offset + code;
7702                 break;
7703         case MONO_PATCH_INFO_ABS:
7704                 target = patch_info->data.target;
7705                 break;
7706         case MONO_PATCH_INFO_LABEL:
7707                 target = patch_info->data.inst->inst_c0 + code;
7708                 break;
7709         case MONO_PATCH_INFO_IP:
7710                 target = ip;
7711                 break;
7712         case MONO_PATCH_INFO_METHOD_REL:
7713                 target = code + patch_info->data.offset;
7714                 break;
7715         case MONO_PATCH_INFO_INTERNAL_METHOD: {
7716                 MonoJitICallInfo *mi = mono_find_jit_icall_by_name (patch_info->data.name);
7717                 if (!mi) {
7718                         g_warning ("unknown MONO_PATCH_INFO_INTERNAL_METHOD %s", patch_info->data.name);
7719                         g_assert_not_reached ();
7720                 }
7721                 target = mono_icall_get_wrapper (mi);
7722                 break;
7723         }
7724         case MONO_PATCH_INFO_METHOD_JUMP: {
7725                 GSList *list;
7726
7727                 /* get the trampoline to the method from the domain */
7728                 target = mono_create_jump_trampoline (domain, patch_info->data.method, TRUE);
7729                 if (!domain->jump_target_hash)
7730                         domain->jump_target_hash = g_hash_table_new (NULL, NULL);
7731                 list = g_hash_table_lookup (domain->jump_target_hash, patch_info->data.method);
7732                 list = g_slist_prepend (list, ip);
7733                 g_hash_table_insert (domain->jump_target_hash, patch_info->data.method, list);
7734                 break;
7735         }
7736         case MONO_PATCH_INFO_METHOD:
7737                 if (patch_info->data.method == method) {
7738                         target = code;
7739                 } else
7740                         /* get the trampoline to the method from the domain */
7741                         target = mono_create_jit_trampoline (patch_info->data.method);
7742                 break;
7743         case MONO_PATCH_INFO_SWITCH: {
7744                 gpointer *jump_table;
7745                 int i;
7746
7747                 if (method && method->dynamic) {
7748                         jump_table = mono_code_manager_reserve (mono_dynamic_code_hash_lookup (domain, method)->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
7749                 } else {
7750                         mono_domain_lock (domain);
7751                         jump_table = mono_code_manager_reserve (domain->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
7752                         mono_domain_unlock (domain);
7753                 }
7754
7755                 for (i = 0; i < patch_info->data.table->table_size; i++) {
7756                         jump_table [i] = code + GPOINTER_TO_INT (patch_info->data.table->table [i]);
7757                 }
7758                 target = jump_table;
7759                 break;
7760         }
7761         case MONO_PATCH_INFO_METHODCONST:
7762         case MONO_PATCH_INFO_CLASS:
7763         case MONO_PATCH_INFO_IMAGE:
7764         case MONO_PATCH_INFO_FIELD:
7765                 target = patch_info->data.target;
7766                 break;
7767         case MONO_PATCH_INFO_IID:
7768                 mono_class_init (patch_info->data.klass);
7769                 target = GINT_TO_POINTER ((int)patch_info->data.klass->interface_id);
7770                 break;
7771         case MONO_PATCH_INFO_VTABLE:
7772                 target = mono_class_vtable (domain, patch_info->data.klass);
7773                 break;
7774         case MONO_PATCH_INFO_CLASS_INIT:
7775                 target = mono_create_class_init_trampoline (mono_class_vtable (domain, patch_info->data.klass));
7776                 break;
7777         case MONO_PATCH_INFO_SFLDA: {
7778                 MonoVTable *vtable = mono_class_vtable (domain, patch_info->data.field->parent);
7779                 if (!vtable->initialized && !(vtable->klass->flags & TYPE_ATTRIBUTE_BEFORE_FIELD_INIT) && (method && mono_class_needs_cctor_run (vtable->klass, method)))
7780                         /* Done by the generated code */
7781                         ;
7782                 else {
7783                         if (run_cctors)
7784                                 mono_runtime_class_init (vtable);
7785                 }
7786                 target = (char*)vtable->data + patch_info->data.field->offset;
7787                 break;
7788         }
7789         case MONO_PATCH_INFO_R4:
7790         case MONO_PATCH_INFO_R8:
7791                 target = patch_info->data.target;
7792                 break;
7793         case MONO_PATCH_INFO_EXC_NAME:
7794                 target = patch_info->data.name;
7795                 break;
7796         case MONO_PATCH_INFO_LDSTR:
7797                 target =
7798                         mono_ldstr (domain, patch_info->data.token->image,
7799                                                 mono_metadata_token_index (patch_info->data.token->token));
7800                 break;
7801         case MONO_PATCH_INFO_TYPE_FROM_HANDLE: {
7802                 gpointer handle;
7803                 MonoClass *handle_class;
7804
7805                 handle = mono_ldtoken (patch_info->data.token->image,
7806                                        patch_info->data.token->token, &handle_class, NULL);
7807                 mono_class_init (handle_class);
7808                 mono_class_init (mono_class_from_mono_type (handle));
7809
7810                 target =
7811                         mono_type_get_object (domain, handle);
7812                 break;
7813         }
7814         case MONO_PATCH_INFO_LDTOKEN: {
7815                 gpointer handle;
7816                 MonoClass *handle_class;
7817
7818                 handle = mono_ldtoken (patch_info->data.token->image,
7819                                        patch_info->data.token->token, &handle_class, NULL);
7820                 mono_class_init (handle_class);
7821
7822                 target = handle;
7823                 break;
7824         }
7825         case MONO_PATCH_INFO_DECLSEC:
7826                 target = (mono_metadata_blob_heap (patch_info->data.token->image, patch_info->data.token->token) + 2);
7827                 break;
7828         case MONO_PATCH_INFO_BB_OVF:
7829         case MONO_PATCH_INFO_EXC_OVF:
7830         case MONO_PATCH_INFO_GOT_OFFSET:
7831         case MONO_PATCH_INFO_NONE:
7832                 break;
7833         default:
7834                 g_assert_not_reached ();
7835         }
7836
7837         return (gpointer)target;
7838 }
7839
7840 static void
7841 dec_foreach (MonoInst *tree, MonoCompile *cfg) {
7842         MonoJitICallInfo *info;
7843
7844         decompose_foreach (tree, cfg);
7845
7846         switch (mono_burg_arity [tree->opcode]) {
7847         case 0: break;
7848         case 1:
7849                 dec_foreach (tree->inst_left, cfg);
7850
7851                 if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
7852                         MonoInst *iargs [2];
7853
7854                         iargs [0] = tree->inst_left;
7855
7856                         mono_emulate_opcode (cfg, tree, iargs, info);
7857                         return;
7858                 }
7859
7860                 break;
7861         case 2:
7862 #ifdef MONO_ARCH_BIGMUL_INTRINS
7863                 if (tree->opcode == OP_LMUL
7864                                 && (cfg->opt & MONO_OPT_INTRINS)
7865                                 && (tree->inst_left->opcode == CEE_CONV_I8
7866                                         || tree->inst_left->opcode == CEE_CONV_U8)
7867                                 && tree->inst_left->inst_left->type == STACK_I4
7868                                 && (tree->inst_right->opcode == CEE_CONV_I8
7869                                         || tree->inst_right->opcode == CEE_CONV_U8)
7870                                 && tree->inst_right->inst_left->type == STACK_I4
7871                                 && tree->inst_left->opcode == tree->inst_right->opcode) {
7872                         tree->opcode = (tree->inst_left->opcode == CEE_CONV_I8 ? OP_BIGMUL: OP_BIGMUL_UN);
7873                         tree->inst_left = tree->inst_left->inst_left;
7874                         tree->inst_right = tree->inst_right->inst_left;
7875                         dec_foreach (tree, cfg);
7876                 } else
7877 #endif
7878                         if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
7879                         MonoInst *iargs [2];
7880
7881                         iargs [0] = tree->inst_i0;
7882                         iargs [1] = tree->inst_i1;
7883
7884                         mono_emulate_opcode (cfg, tree, iargs, info);
7885
7886                         dec_foreach (iargs [0], cfg);
7887                         dec_foreach (iargs [1], cfg);
7888                         return;
7889                 } else {
7890                         dec_foreach (tree->inst_left, cfg);
7891                         dec_foreach (tree->inst_right, cfg);
7892                 }
7893                 break;
7894         default:
7895                 g_assert_not_reached ();
7896         }
7897 }
7898
7899 static void
7900 decompose_pass (MonoCompile *cfg) {
7901         MonoBasicBlock *bb;
7902
7903         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
7904                 MonoInst *tree;
7905                 cfg->cbb = bb;
7906                 cfg->prev_ins = NULL;
7907                 for (tree = cfg->cbb->code; tree; tree = tree->next) {
7908                         dec_foreach (tree, cfg);
7909                         cfg->prev_ins = tree;
7910                 }
7911         }
7912 }
7913
7914 static void
7915 nullify_basic_block (MonoBasicBlock *bb)
7916 {
7917         bb->in_count = 0;
7918         bb->out_count = 0;
7919         bb->in_bb = NULL;
7920         bb->out_bb = NULL;
7921         bb->next_bb = NULL;
7922         bb->code = bb->last_ins = NULL;
7923         bb->cil_code = NULL;
7924 }
7925
7926 static void
7927 replace_out_block (MonoBasicBlock *bb, MonoBasicBlock *orig,  MonoBasicBlock *repl)
7928 {
7929         int i;
7930
7931         for (i = 0; i < bb->out_count; i++) {
7932                 MonoBasicBlock *ob = bb->out_bb [i];
7933                 if (ob == orig) {
7934                         if (!repl) {
7935                                 if (bb->out_count > 1) {
7936                                         bb->out_bb [i] = bb->out_bb [bb->out_count - 1];
7937                                 }
7938                                 bb->out_count--;
7939                         } else {
7940                                 bb->out_bb [i] = repl;
7941                         }
7942                 }
7943         }
7944 }
7945
7946 static void
7947 replace_in_block (MonoBasicBlock *bb, MonoBasicBlock *orig, MonoBasicBlock *repl)
7948 {
7949         int i;
7950
7951         for (i = 0; i < bb->in_count; i++) {
7952                 MonoBasicBlock *ib = bb->in_bb [i];
7953                 if (ib == orig) {
7954                         if (!repl) {
7955                                 if (bb->in_count > 1) {
7956                                         bb->in_bb [i] = bb->in_bb [bb->in_count - 1];
7957                                 }
7958                                 bb->in_count--;
7959                         } else {
7960                                 bb->in_bb [i] = repl;
7961                         }
7962                 }
7963         }
7964 }
7965
7966 static void
7967 replace_or_add_in_block (MonoCompile *cfg, MonoBasicBlock *bb, MonoBasicBlock *orig, MonoBasicBlock *repl)
7968 {
7969         gboolean found = FALSE;
7970         int i;
7971
7972         for (i = 0; i < bb->in_count; i++) {
7973                 MonoBasicBlock *ib = bb->in_bb [i];
7974                 if (ib == orig) {
7975                         if (!repl) {
7976                                 if (bb->in_count > 1) {
7977                                         bb->in_bb [i] = bb->in_bb [bb->in_count - 1];
7978                                 }
7979                                 bb->in_count--;
7980                         } else {
7981                                 bb->in_bb [i] = repl;
7982                         }
7983                         found = TRUE;
7984                 }
7985         }
7986
7987         if (! found) {
7988                 MonoBasicBlock **new_in_bb = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (bb->in_count + 1));
7989                 for (i = 0; i < bb->in_count; i++) {
7990                         new_in_bb [i] = bb->in_bb [i];
7991                 }
7992                 new_in_bb [i] = repl;
7993                 bb->in_count++;
7994                 bb->in_bb = new_in_bb;
7995         }
7996 }
7997
7998
7999 static void
8000 replace_out_block_in_code (MonoBasicBlock *bb, MonoBasicBlock *orig, MonoBasicBlock *repl) {
8001         MonoInst *inst;
8002
8003         for (inst = bb->code; inst != NULL; inst = inst->next) {
8004                 if (inst->opcode == OP_CALL_HANDLER) {
8005                         if (inst->inst_target_bb == orig) {
8006                                 inst->inst_target_bb = repl;
8007                         }
8008                 }
8009         }
8010         if (bb->last_ins != NULL) {
8011                 switch (bb->last_ins->opcode) {
8012                 case CEE_BR:
8013                         if (bb->last_ins->inst_target_bb == orig) {
8014                                 bb->last_ins->inst_target_bb = repl;
8015                         }
8016                         break;
8017                 case CEE_SWITCH: {
8018                         int i;
8019                         int n = GPOINTER_TO_INT (bb->last_ins->klass);
8020                         for (i = 0; i < n; i++ ) {
8021                                 if (bb->last_ins->inst_many_bb [i] == orig) {
8022                                         bb->last_ins->inst_many_bb [i] = repl;
8023                                 }
8024                         }
8025                         break;
8026                 }
8027                 case CEE_BNE_UN:
8028                 case CEE_BEQ:
8029                 case CEE_BLT:
8030                 case CEE_BLT_UN:
8031                 case CEE_BGT:
8032                 case CEE_BGT_UN:
8033                 case CEE_BGE:
8034                 case CEE_BGE_UN:
8035                 case CEE_BLE:
8036                 case CEE_BLE_UN:
8037                         if (bb->last_ins->inst_true_bb == orig) {
8038                                 bb->last_ins->inst_true_bb = repl;
8039                         }
8040                         if (bb->last_ins->inst_false_bb == orig) {
8041                                 bb->last_ins->inst_false_bb = repl;
8042                         }
8043                         break;
8044                 default:
8045                         break;
8046                 }
8047         }
8048 }
8049
8050 static void
8051 replace_basic_block (MonoBasicBlock *bb, MonoBasicBlock *orig,  MonoBasicBlock *repl)
8052 {
8053         int i, j;
8054
8055         for (i = 0; i < bb->out_count; i++) {
8056                 MonoBasicBlock *ob = bb->out_bb [i];
8057                 for (j = 0; j < ob->in_count; j++) {
8058                         if (ob->in_bb [j] == orig) {
8059                                 ob->in_bb [j] = repl;
8060                         }
8061                 }
8062         }
8063
8064 }
8065
8066 /**
8067   * Check if a bb is useless (is just made of NOPs and ends with an
8068   * unconditional branch, or nothing).
8069   * If it is so, unlink it from the CFG and nullify it, and return TRUE.
8070   * Otherwise, return FALSE;
8071   */
8072 static gboolean
8073 remove_block_if_useless (MonoCompile *cfg, MonoBasicBlock *bb, MonoBasicBlock *previous_bb) {
8074         MonoBasicBlock *target_bb = NULL;
8075         MonoInst *inst;
8076
8077         /* Do not touch handlers */
8078         if (bb->region != -1) return FALSE;
8079
8080         for (inst = bb->code; inst != NULL; inst = inst->next) {
8081                 switch (inst->opcode) {
8082                 case CEE_NOP:
8083                         break;
8084                 case CEE_BR:
8085                         target_bb = inst->inst_target_bb;
8086                         break;
8087                 default:
8088                         return FALSE;
8089                 }
8090         }
8091
8092         if (target_bb == NULL) {
8093                 if ((bb->out_count == 1) && (bb->out_bb [0] == bb->next_bb)) {
8094                         target_bb = bb->next_bb;
8095                 } else {
8096                         /* Do not touch empty BBs that do not "fall through" to their next BB (like the exit BB) */
8097                         return FALSE;
8098                 }
8099         }
8100
8101         /* Do not touch BBs following a switch (they are the "default" branch) */
8102         if ((previous_bb->last_ins != NULL) && (previous_bb->last_ins->opcode == CEE_SWITCH)) {
8103                 return FALSE;
8104         }
8105
8106         /* Do not touch BBs following the entry BB and jumping to something that is not */
8107         /* thiry "next" bb (the entry BB cannot contain the branch) */
8108         if ((previous_bb == cfg->bb_entry) && (bb->next_bb != target_bb)) {
8109                 return FALSE;
8110         }
8111
8112         /* Check that there is a target BB, and that bb is not an empty loop (Bug 75061) */
8113         if ((target_bb != NULL) && (target_bb != bb)) {
8114                 int i;
8115
8116                 if (cfg->verbose_level > 1) {
8117                         printf ("remove_block_if_useless %s, removed BB%d\n", mono_method_full_name (cfg->method, TRUE), bb->block_num);
8118                 }
8119
8120                 for (i = 0; i < bb->in_count; i++) {
8121                         MonoBasicBlock *in_bb = bb->in_bb [i];
8122                         replace_out_block (in_bb, bb, target_bb);
8123                         replace_out_block_in_code (in_bb, bb, target_bb);
8124                         if (bb->in_count == 1) {
8125                                 replace_in_block (target_bb, bb, in_bb);
8126                         } else {
8127                                 replace_or_add_in_block (cfg, target_bb, bb, in_bb);
8128                         }
8129                 }
8130
8131                 if ((previous_bb != cfg->bb_entry) &&
8132                                 (previous_bb->region == bb->region) &&
8133                                 ((previous_bb->last_ins == NULL) ||
8134                                 ((previous_bb->last_ins->opcode != CEE_BR) &&
8135                                 (! (MONO_IS_COND_BRANCH_OP (previous_bb->last_ins))) &&
8136                                 (previous_bb->last_ins->opcode != CEE_SWITCH)))) {
8137                         for (i = 0; i < previous_bb->out_count; i++) {
8138                                 if (previous_bb->out_bb [i] == target_bb) {
8139                                         MonoInst *jump;
8140                                         MONO_INST_NEW (cfg, jump, CEE_BR);
8141                                         MONO_ADD_INS (previous_bb, jump);
8142                                         jump->cil_code = previous_bb->cil_code;
8143                                         jump->inst_target_bb = target_bb;
8144                                         break;
8145                                 }
8146                         }
8147                 }
8148
8149                 previous_bb->next_bb = bb->next_bb;
8150                 nullify_basic_block (bb);
8151
8152                 return TRUE;
8153         } else {
8154                 return FALSE;
8155         }
8156 }
8157
8158 static void
8159 merge_basic_blocks (MonoBasicBlock *bb, MonoBasicBlock *bbn)
8160 {
8161         bb->out_count = bbn->out_count;
8162         bb->out_bb = bbn->out_bb;
8163
8164         replace_basic_block (bb, bbn, bb);
8165
8166         if (bb->last_ins) {
8167                 if (bbn->code) {
8168                         bb->last_ins->next = bbn->code;
8169                         bb->last_ins = bbn->last_ins;
8170                 }
8171         } else {
8172                 bb->code = bbn->code;
8173                 bb->last_ins = bbn->last_ins;
8174         }
8175         bb->next_bb = bbn->next_bb;
8176         nullify_basic_block (bbn);
8177 }
8178
8179 static void
8180 move_basic_block_to_end (MonoCompile *cfg, MonoBasicBlock *bb)
8181 {
8182         MonoBasicBlock *bbn, *next;
8183
8184         next = bb->next_bb;
8185
8186         /* Find the previous */
8187         for (bbn = cfg->bb_entry; bbn->next_bb && bbn->next_bb != bb; bbn = bbn->next_bb)
8188                 ;
8189         if (bbn->next_bb) {
8190                 bbn->next_bb = bb->next_bb;
8191         }
8192
8193         /* Find the last */
8194         for (bbn = cfg->bb_entry; bbn->next_bb; bbn = bbn->next_bb)
8195                 ;
8196         bbn->next_bb = bb;
8197         bb->next_bb = NULL;
8198
8199         /* Add a branch */
8200         if (next && (!bb->last_ins || (bb->last_ins->opcode != OP_NOT_REACHED))) {
8201                 MonoInst *ins;
8202
8203                 MONO_INST_NEW (cfg, ins, CEE_BR);
8204                 MONO_ADD_INS (bb, ins);
8205                 link_bblock (cfg, bb, next);
8206                 ins->inst_target_bb = next;
8207         }
8208 }
8209
8210 /*
8211  * Optimizes the branches on the Control Flow Graph
8212  *
8213  */
8214 static void
8215 optimize_branches (MonoCompile *cfg)
8216 {
8217         int i, changed = FALSE;
8218         MonoBasicBlock *bb, *bbn;
8219         guint32 niterations;
8220
8221         /*
8222          * Some crazy loops could cause the code below to go into an infinite
8223          * loop, see bug #53003 for an example. To prevent this, we put an upper
8224          * bound on the number of iterations.
8225          */
8226         if (cfg->num_bblocks > 1000)
8227                 niterations = cfg->num_bblocks * 2;
8228         else
8229                 niterations = 1000;
8230         do {
8231                 MonoBasicBlock *previous_bb;
8232                 changed = FALSE;
8233                 niterations --;
8234
8235                 /* we skip the entry block (exit is handled specially instead ) */
8236                 for (previous_bb = cfg->bb_entry, bb = cfg->bb_entry->next_bb; bb; previous_bb = bb, bb = bb->next_bb) {
8237
8238                         /* dont touch code inside exception clauses */
8239                         if (bb->region != -1)
8240                                 continue;
8241
8242                         if (remove_block_if_useless (cfg, bb, previous_bb)) {
8243                                 changed = TRUE;
8244                                 continue;
8245                         }
8246
8247                         if ((bbn = bb->next_bb) && bbn->in_count == 0 && bb->region == bbn->region) {
8248                                 if (cfg->verbose_level > 2)
8249                                         g_print ("nullify block triggered %d\n", bbn->block_num);
8250
8251                                 bb->next_bb = bbn->next_bb;
8252
8253                                 for (i = 0; i < bbn->out_count; i++)
8254                                         replace_in_block (bbn->out_bb [i], bbn, NULL);
8255
8256                                 nullify_basic_block (bbn);
8257                                 changed = TRUE;
8258                         }
8259
8260                         if (bb->out_count == 1) {
8261                                 bbn = bb->out_bb [0];
8262
8263                                 /* conditional branches where true and false targets are the same can be also replaced with CEE_BR */
8264                                 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
8265                                         MonoInst *pop;
8266                                         MONO_INST_NEW (cfg, pop, CEE_POP);
8267                                         pop->inst_left = bb->last_ins->inst_left->inst_left;
8268                                         mono_add_ins_to_end (bb, pop);
8269                                         MONO_INST_NEW (cfg, pop, CEE_POP);
8270                                         pop->inst_left = bb->last_ins->inst_left->inst_right;
8271                                         mono_add_ins_to_end (bb, pop);
8272                                         bb->last_ins->opcode = CEE_BR;
8273                                         bb->last_ins->inst_target_bb = bb->last_ins->inst_true_bb;
8274                                         changed = TRUE;
8275                                         if (cfg->verbose_level > 2)
8276                                                 g_print ("cond branch removal triggered in %d %d\n", bb->block_num, bb->out_count);
8277                                 }
8278
8279                                 if (bb->region == bbn->region && bb->next_bb == bbn) {
8280                                         /* the block are in sequence anyway ... */
8281
8282                                         /* branches to the following block can be removed */
8283                                         if (bb->last_ins && bb->last_ins->opcode == CEE_BR) {
8284                                                 bb->last_ins->opcode = CEE_NOP;
8285                                                 changed = TRUE;
8286                                                 if (cfg->verbose_level > 2)
8287                                                         g_print ("br removal triggered %d -> %d\n", bb->block_num, bbn->block_num);
8288                                         }
8289
8290                                         if (bbn->in_count == 1) {
8291
8292                                                 if (bbn != cfg->bb_exit) {
8293                                                         if (cfg->verbose_level > 2)
8294                                                                 g_print ("block merge triggered %d -> %d\n", bb->block_num, bbn->block_num);
8295                                                         merge_basic_blocks (bb, bbn);
8296                                                         changed = TRUE;
8297                                                 }
8298
8299                                                 //mono_print_bb_code (bb);
8300                                         }
8301                                 }
8302                         }
8303                 }
8304         } while (changed && (niterations > 0));
8305
8306         niterations = 1000;
8307         do {
8308                 changed = FALSE;
8309                 niterations --;
8310
8311                 /* we skip the entry block (exit is handled specially instead ) */
8312                 for (bb = cfg->bb_entry->next_bb; bb; bb = bb->next_bb) {
8313
8314                         /* dont touch code inside exception clauses */
8315                         if (bb->region != -1)
8316                                 continue;
8317
8318                         if ((bbn = bb->next_bb) && bbn->in_count == 0 && bb->region == bbn->region) {
8319                                 if (cfg->verbose_level > 2) {
8320                                         g_print ("nullify block triggered %d\n", bbn->block_num);
8321                                 }
8322                                 bb->next_bb = bbn->next_bb;
8323
8324                                 for (i = 0; i < bbn->out_count; i++)
8325                                         replace_in_block (bbn->out_bb [i], bbn, NULL);
8326
8327                                 nullify_basic_block (bbn);
8328                                 changed = TRUE;
8329                                 break;
8330                         }
8331
8332
8333                         if (bb->out_count == 1) {
8334                                 bbn = bb->out_bb [0];
8335
8336                                 if (bb->last_ins && bb->last_ins->opcode == CEE_BR) {
8337                                         bbn = bb->last_ins->inst_target_bb;
8338                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR &&
8339                                             bbn->code->inst_target_bb->region == bb->region) {
8340
8341                                                 if (cfg->verbose_level > 2)
8342                                                         g_print ("in %s branch to branch triggered %d -> %d -> %d\n", cfg->method->name,
8343                                                                  bb->block_num, bbn->block_num, bbn->code->inst_target_bb->block_num);
8344
8345                                                 replace_in_block (bbn, bb, NULL);
8346                                                 replace_out_block (bb, bbn, bbn->code->inst_target_bb);
8347                                                 link_bblock (cfg, bb, bbn->code->inst_target_bb);
8348                                                 bb->last_ins->inst_target_bb = bbn->code->inst_target_bb;
8349                                                 changed = TRUE;
8350                                                 break;
8351                                         }
8352                                 }
8353                         } else if (bb->out_count == 2) {
8354                                 if (bb->last_ins && MONO_IS_COND_BRANCH_NOFP (bb->last_ins)) {
8355                                         int branch_result = mono_eval_cond_branch (bb->last_ins);
8356                                         MonoBasicBlock *taken_branch_target = NULL, *untaken_branch_target = NULL;
8357                                         if (branch_result == BRANCH_TAKEN) {
8358                                                 taken_branch_target = bb->last_ins->inst_true_bb;
8359                                                 untaken_branch_target = bb->last_ins->inst_false_bb;
8360                                         } else if (branch_result == BRANCH_NOT_TAKEN) {
8361                                                 taken_branch_target = bb->last_ins->inst_false_bb;
8362                                                 untaken_branch_target = bb->last_ins->inst_true_bb;
8363                                         }
8364                                         if (taken_branch_target) {
8365                                                 /* if mono_eval_cond_branch () is ever taken to handle
8366                                                  * non-constant values to compare, issue a pop here.
8367                                                  */
8368                                                 bb->last_ins->opcode = CEE_BR;
8369                                                 bb->last_ins->inst_target_bb = taken_branch_target;
8370                                                 replace_out_block (bb, untaken_branch_target, NULL);
8371                                                 replace_in_block (untaken_branch_target, bb, NULL);
8372                                                 changed = TRUE;
8373                                                 break;
8374                                         }
8375                                         bbn = bb->last_ins->inst_true_bb;
8376                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR &&
8377                                             bbn->code->inst_target_bb->region == bb->region) {
8378                                                 if (cfg->verbose_level > 2)
8379                                                         g_print ("cbranch1 to branch triggered %d -> (%d) %d (0x%02x)\n",
8380                                                                  bb->block_num, bbn->block_num, bbn->code->inst_target_bb->block_num,
8381                                                                  bbn->code->opcode);
8382
8383                                                 bb->last_ins->inst_true_bb = bbn->code->inst_target_bb;
8384
8385                                                 replace_in_block (bbn, bb, NULL);
8386                                                 if (!bbn->in_count)
8387                                                         replace_in_block (bbn->code->inst_target_bb, bbn, bb);
8388                                                 replace_out_block (bb, bbn, bbn->code->inst_target_bb);
8389
8390                                                 link_bblock (cfg, bb, bbn->code->inst_target_bb);
8391
8392                                                 changed = TRUE;
8393                                                 break;
8394                                         }
8395
8396                                         bbn = bb->last_ins->inst_false_bb;
8397                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR &&
8398                                             bbn->code->inst_target_bb->region == bb->region) {
8399                                                 if (cfg->verbose_level > 2)
8400                                                         g_print ("cbranch2 to branch triggered %d -> (%d) %d (0x%02x)\n",
8401                                                                  bb->block_num, bbn->block_num, bbn->code->inst_target_bb->block_num,
8402                                                                  bbn->code->opcode);
8403
8404                                                 bb->last_ins->inst_false_bb = bbn->code->inst_target_bb;
8405
8406                                                 replace_in_block (bbn, bb, NULL);
8407                                                 if (!bbn->in_count)
8408                                                         replace_in_block (bbn->code->inst_target_bb, bbn, bb);
8409                                                 replace_out_block (bb, bbn, bbn->code->inst_target_bb);
8410
8411                                                 link_bblock (cfg, bb, bbn->code->inst_target_bb);
8412
8413                                                 changed = TRUE;
8414                                                 break;
8415                                         }
8416                                 }
8417
8418                                 if (bb->last_ins && MONO_IS_COND_BRANCH_NOFP (bb->last_ins)) {
8419                                         if (bb->last_ins->inst_false_bb->out_of_line && (bb->region == bb->last_ins->inst_false_bb->region)) {
8420                                                 /* Reverse the branch */
8421                                                 bb->last_ins->opcode = reverse_branch_op (bb->last_ins->opcode);
8422                                                 bbn = bb->last_ins->inst_false_bb;
8423                                                 bb->last_ins->inst_false_bb = bb->last_ins->inst_true_bb;
8424                                                 bb->last_ins->inst_true_bb = bbn;
8425
8426                                                 move_basic_block_to_end (cfg, bb->last_ins->inst_true_bb);
8427                                                 if (cfg->verbose_level > 2)
8428                                                         g_print ("cbranch to throw block triggered %d.\n",
8429                                                                          bb->block_num);
8430                                         }
8431                                 }
8432                         }
8433                 }
8434         } while (changed && (niterations > 0));
8435
8436 }
8437
8438 static void
8439 mono_compile_create_vars (MonoCompile *cfg)
8440 {
8441         MonoMethodSignature *sig;
8442         MonoMethodHeader *header;
8443         int i;
8444
8445         header = mono_method_get_header (cfg->method);
8446
8447         sig = mono_method_signature (cfg->method);
8448
8449         if (!MONO_TYPE_IS_VOID (sig->ret)) {
8450                 cfg->ret = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
8451                 cfg->ret->opcode = OP_RETARG;
8452                 cfg->ret->inst_vtype = sig->ret;
8453                 cfg->ret->klass = mono_class_from_mono_type (sig->ret);
8454         }
8455         if (cfg->verbose_level > 2)
8456                 g_print ("creating vars\n");
8457
8458         if (sig->hasthis)
8459                 mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
8460
8461         for (i = 0; i < sig->param_count; ++i) {
8462                 mono_compile_create_var (cfg, sig->params [i], OP_ARG);
8463                 if (sig->params [i]->byref) {
8464                         cfg->disable_ssa = TRUE;
8465                 }
8466         }
8467
8468         cfg->locals_start = cfg->num_varinfo;
8469
8470         if (cfg->verbose_level > 2)
8471                 g_print ("creating locals\n");
8472         for (i = 0; i < header->num_locals; ++i)
8473                 mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
8474         if (cfg->verbose_level > 2)
8475                 g_print ("locals done\n");
8476
8477 #ifdef MONO_ARCH_HAVE_CREATE_VARS
8478         mono_arch_create_vars (cfg);
8479 #endif
8480 }
8481
8482 void
8483 mono_print_code (MonoCompile *cfg)
8484 {
8485         MonoBasicBlock *bb;
8486
8487         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8488                 MonoInst *tree = bb->code;
8489
8490                 if (!tree)
8491                         continue;
8492
8493                 g_print ("CODE BLOCK %d (nesting %d):\n", bb->block_num, bb->nesting);
8494
8495                 for (; tree; tree = tree->next) {
8496                         mono_print_tree (tree);
8497                         g_print ("\n");
8498                 }
8499
8500                 if (bb->last_ins)
8501                         bb->last_ins->next = NULL;
8502         }
8503 }
8504
8505 extern const char * const mono_burg_rule_string [];
8506
8507 static void
8508 emit_state (MonoCompile *cfg, MBState *state, int goal)
8509 {
8510         MBState *kids [10];
8511         int ern = mono_burg_rule (state, goal);
8512         const guint16 *nts = mono_burg_nts [ern];
8513         MBEmitFunc emit;
8514
8515         //g_print ("rule: %s\n", mono_burg_rule_string [ern]);
8516         switch (goal) {
8517         case MB_NTERM_reg:
8518                 //if (state->reg2)
8519                 //      state->reg1 = state->reg2; /* chain rule */
8520                 //else
8521 #ifdef MONO_ARCH_ENABLE_EMIT_STATE_OPT
8522                 if (!state->reg1)
8523 #endif
8524                         state->reg1 = mono_regstate_next_int (cfg->rs);
8525                 //g_print ("alloc symbolic R%d (reg2: R%d) in block %d\n", state->reg1, state->reg2, cfg->cbb->block_num);
8526                 break;
8527         case MB_NTERM_lreg:
8528                 state->reg1 = mono_regstate_next_int (cfg->rs);
8529                 state->reg2 = mono_regstate_next_int (cfg->rs);
8530                 break;
8531         case MB_NTERM_freg:
8532                 state->reg1 = mono_regstate_next_float (cfg->rs);
8533                 break;
8534         default:
8535 #ifdef MONO_ARCH_ENABLE_EMIT_STATE_OPT
8536                 /*
8537                  * Enabling this might cause bugs to surface in the local register
8538                  * allocators on some architectures like x86.
8539                  */
8540                 if ((state->tree->ssa_op == MONO_SSA_STORE) && (state->left->tree->opcode == OP_REGVAR)) {
8541                         /* Do not optimize away reg-reg moves */
8542                         if (! ((state->right->tree->ssa_op == MONO_SSA_LOAD) && (state->right->left->tree->opcode == OP_REGVAR))) {
8543                                 state->right->reg1 = state->left->tree->dreg;
8544                         }
8545                 }
8546 #endif
8547
8548                 /* do nothing */
8549                 break;
8550         }
8551         if (nts [0]) {
8552                 mono_burg_kids (state, ern, kids);
8553
8554                 emit_state (cfg, kids [0], nts [0]);
8555                 if (nts [1]) {
8556                         emit_state (cfg, kids [1], nts [1]);
8557                         if (nts [2]) {
8558                                 g_assert (!nts [3]);
8559                                 emit_state (cfg, kids [2], nts [2]);
8560                         }
8561                 }
8562         }
8563
8564 //      g_print ("emit: %s (%p)\n", mono_burg_rule_string [ern], state);
8565         if ((emit = mono_burg_func [ern]))
8566                 emit (state, state->tree, cfg);
8567 }
8568
8569 #define DEBUG_SELECTION
8570
8571 static void
8572 mini_select_instructions (MonoCompile *cfg)
8573 {
8574         MonoBasicBlock *bb;
8575
8576         cfg->state_pool = mono_mempool_new ();
8577         cfg->rs = mono_regstate_new ();
8578
8579         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8580                 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
8581                     bb->next_bb != bb->last_ins->inst_false_bb) {
8582
8583                         /* we are careful when inverting, since bugs like #59580
8584                          * could show up when dealing with NaNs.
8585                          */
8586                         if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
8587                                 MonoBasicBlock *tmp =  bb->last_ins->inst_true_bb;
8588                                 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
8589                                 bb->last_ins->inst_false_bb = tmp;
8590
8591                                 bb->last_ins->opcode = reverse_branch_op (bb->last_ins->opcode);
8592                         } else {
8593                                 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
8594                                 inst->opcode = CEE_BR;
8595                                 inst->inst_target_bb = bb->last_ins->inst_false_bb;
8596                                 mono_bblock_add_inst (bb, inst);
8597                         }
8598                 }
8599         }
8600
8601 #ifdef DEBUG_SELECTION
8602         if (cfg->verbose_level >= 4) {
8603         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8604                 MonoInst *tree = bb->code;
8605                 g_print ("DUMP BLOCK %d:\n", bb->block_num);
8606                 if (!tree)
8607                         continue;
8608                 for (; tree; tree = tree->next) {
8609                         mono_print_tree (tree);
8610                         g_print ("\n");
8611                 }
8612         }
8613         }
8614 #endif
8615
8616         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8617                 MonoInst *tree = bb->code, *next;
8618                 MBState *mbstate;
8619
8620                 if (!tree)
8621                         continue;
8622                 bb->code = NULL;
8623                 bb->last_ins = NULL;
8624
8625                 cfg->cbb = bb;
8626                 mono_regstate_reset (cfg->rs);
8627
8628 #ifdef DEBUG_SELECTION
8629                 if (cfg->verbose_level >= 3)
8630                         g_print ("LABEL BLOCK %d:\n", bb->block_num);
8631 #endif
8632                 for (; tree; tree = next) {
8633                         next = tree->next;
8634 #ifdef DEBUG_SELECTION
8635                         if (cfg->verbose_level >= 3) {
8636                                 mono_print_tree (tree);
8637                                 g_print ("\n");
8638                         }
8639 #endif
8640
8641                         if (!(mbstate = mono_burg_label (tree, cfg))) {
8642                                 g_warning ("unable to label tree %p", tree);
8643                                 mono_print_tree (tree);
8644                                 g_print ("\n");
8645                                 g_assert_not_reached ();
8646                         }
8647                         emit_state (cfg, mbstate, MB_NTERM_stmt);
8648                 }
8649                 bb->max_ireg = cfg->rs->next_vireg;
8650                 bb->max_freg = cfg->rs->next_vfreg;
8651
8652                 if (bb->last_ins)
8653                         bb->last_ins->next = NULL;
8654
8655                 mono_mempool_empty (cfg->state_pool);
8656         }
8657         mono_mempool_destroy (cfg->state_pool);
8658 }
8659
8660 void
8661 mono_codegen (MonoCompile *cfg)
8662 {
8663         MonoJumpInfo *patch_info;
8664         MonoBasicBlock *bb;
8665         int i, max_epilog_size;
8666         guint8 *code;
8667
8668         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8669                 cfg->spill_count = 0;
8670                 /* we reuse dfn here */
8671                 /* bb->dfn = bb_count++; */
8672                 mono_arch_local_regalloc (cfg, bb);
8673         }
8674
8675         if (cfg->prof_options & MONO_PROFILE_COVERAGE)
8676                 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
8677
8678         code = mono_arch_emit_prolog (cfg);
8679
8680         if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE)
8681                 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
8682
8683         cfg->code_len = code - cfg->native_code;
8684         cfg->prolog_end = cfg->code_len;
8685
8686         mono_debug_open_method (cfg);
8687
8688         /* emit code all basic blocks */
8689         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8690                 bb->native_offset = cfg->code_len;
8691                 mono_arch_output_basic_block (cfg, bb);
8692
8693                 if (bb == cfg->bb_exit) {
8694                         cfg->epilog_begin = cfg->code_len;
8695
8696                         if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
8697                                 code = cfg->native_code + cfg->code_len;
8698                                 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
8699                                 cfg->code_len = code - cfg->native_code;
8700                         }
8701
8702                         mono_arch_emit_epilog (cfg);
8703                 }
8704         }
8705
8706         mono_arch_emit_exceptions (cfg);
8707
8708         max_epilog_size = 0;
8709
8710         code = cfg->native_code + cfg->code_len;
8711
8712         /* we always allocate code in cfg->domain->code_mp to increase locality */
8713         cfg->code_size = cfg->code_len + max_epilog_size;
8714         /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
8715
8716         if (cfg->method->dynamic) {
8717                 /* Allocate the code into a separate memory pool so it can be freed */
8718                 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
8719                 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
8720                 mono_domain_lock (cfg->domain);
8721                 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
8722                 mono_domain_unlock (cfg->domain);
8723
8724                 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size);
8725         } else {
8726                 mono_domain_lock (cfg->domain);
8727                 code = mono_code_manager_reserve (cfg->domain->code_mp, cfg->code_size);
8728                 mono_domain_unlock (cfg->domain);
8729         }
8730
8731         memcpy (code, cfg->native_code, cfg->code_len);
8732         g_free (cfg->native_code);
8733         cfg->native_code = code;
8734         code = cfg->native_code + cfg->code_len;
8735
8736         /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
8737         for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
8738                 switch (patch_info->type) {
8739                 case MONO_PATCH_INFO_ABS: {
8740                         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
8741                         if (info) {
8742                                 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
8743                                 if ((cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) &&
8744                                         strstr (cfg->method->name, info->name))
8745                                         /*
8746                                          * This is an icall wrapper, and this is a call to the
8747                                          * wrapped function.
8748                                          */
8749                                         ;
8750                                 else {
8751                                         patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
8752                                         patch_info->data.name = info->name;
8753                                 }
8754                         }
8755                         else {
8756                                 MonoVTable *vtable = mono_find_class_init_trampoline_by_addr (patch_info->data.target);
8757                                 if (vtable) {
8758                                         patch_info->type = MONO_PATCH_INFO_CLASS_INIT;
8759                                         patch_info->data.klass = vtable->klass;
8760                                 }
8761                         }
8762                         break;
8763                 }
8764                 case MONO_PATCH_INFO_SWITCH: {
8765                         gpointer *table;
8766                         if (cfg->method->dynamic) {
8767                                 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
8768                         } else {
8769                                 mono_domain_lock (cfg->domain);
8770                                 table = mono_code_manager_reserve (cfg->domain->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
8771                                 mono_domain_unlock (cfg->domain);
8772                         }
8773
8774                         if (!cfg->compile_aot)
8775                                 /* In the aot case, the patch already points to the correct location */
8776                                 patch_info->ip.i = patch_info->ip.label->inst_c0;
8777                         for (i = 0; i < patch_info->data.table->table_size; i++) {
8778                                 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
8779                         }
8780                         patch_info->data.table->table = (MonoBasicBlock**)table;
8781                         break;
8782                 }
8783                 default:
8784                         /* do nothing */
8785                         break;
8786                 }
8787         }
8788
8789         if (cfg->verbose_level > 0) {
8790                 char* nm = mono_method_full_name (cfg->method, TRUE);
8791                 g_print ("Method %s emitted at %p to %p [%s]\n",
8792                                  nm,
8793                                  cfg->native_code, cfg->native_code + cfg->code_len, cfg->domain->friendly_name);
8794                 g_free (nm);
8795         }
8796
8797 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
8798         mono_arch_save_unwind_info (cfg);
8799 #endif
8800
8801         mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
8802
8803         if (cfg->method->dynamic) {
8804                 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
8805         } else {
8806                 mono_domain_lock (cfg->domain);
8807                 mono_code_manager_commit (cfg->domain->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
8808                 mono_domain_unlock (cfg->domain);
8809         }
8810
8811         mono_arch_flush_icache (cfg->native_code, cfg->code_len);
8812
8813         mono_debug_close_method (cfg);
8814 }
8815
8816 static void
8817 mono_cprop_copy_values (MonoCompile *cfg, MonoInst *tree, MonoInst **acp)
8818 {
8819         MonoInst *cp;
8820         int arity;
8821
8822         if (tree->ssa_op == MONO_SSA_LOAD && (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG) &&
8823             (cp = acp [tree->inst_i0->inst_c0]) && !tree->inst_i0->flags) {
8824
8825                 if (cp->opcode == OP_ICONST) {
8826                         if (cfg->opt & MONO_OPT_CONSPROP) {
8827                                 //{ static int c = 0; printf ("CCOPY %d %d %s\n", c++, cp->inst_c0, mono_method_full_name (cfg->method, TRUE)); }
8828                                 *tree = *cp;
8829                         }
8830                 } else {
8831                         if (tree->inst_i0->inst_vtype->type == cp->inst_vtype->type) {
8832                                 if (cfg->opt & MONO_OPT_COPYPROP) {
8833                                         //{ static int c = 0; printf ("VCOPY %d\n", ++c); }
8834                                         tree->inst_i0 = cp;
8835                                 }
8836                         }
8837                 }
8838         } else {
8839                 arity = mono_burg_arity [tree->opcode];
8840
8841                 if (arity) {
8842                         mono_cprop_copy_values (cfg, tree->inst_i0, acp);
8843                         if (cfg->opt & MONO_OPT_CFOLD)
8844                                 mono_constant_fold_inst (tree, NULL);
8845                         /* The opcode may have changed */
8846                         if (mono_burg_arity [tree->opcode] > 1) {
8847                                 mono_cprop_copy_values (cfg, tree->inst_i1, acp);
8848                                 if (cfg->opt & MONO_OPT_CFOLD)
8849                                         mono_constant_fold_inst (tree, NULL);
8850                         }
8851                         mono_constant_fold_inst (tree, NULL);
8852                 }
8853         }
8854 }
8855
8856 static void
8857 mono_cprop_invalidate_values (MonoInst *tree, MonoInst **acp, int acp_size)
8858 {
8859         int arity;
8860
8861         switch (tree->opcode) {
8862         case CEE_STIND_I:
8863         case CEE_STIND_I1:
8864         case CEE_STIND_I2:
8865         case CEE_STIND_I4:
8866         case CEE_STIND_REF:
8867         case CEE_STIND_I8:
8868         case CEE_STIND_R4:
8869         case CEE_STIND_R8:
8870         case CEE_STOBJ:
8871                 if (tree->ssa_op == MONO_SSA_NOP) {
8872                         memset (acp, 0, sizeof (MonoInst *) * acp_size);
8873                         return;
8874                 }
8875
8876                 break;
8877         case CEE_CALL:
8878         case OP_CALL_REG:
8879         case CEE_CALLVIRT:
8880         case OP_LCALL_REG:
8881         case OP_LCALLVIRT:
8882         case OP_LCALL:
8883         case OP_FCALL_REG:
8884         case OP_FCALLVIRT:
8885         case OP_FCALL:
8886         case OP_VCALL_REG:
8887         case OP_VCALLVIRT:
8888         case OP_VCALL:
8889         case OP_VOIDCALL_REG:
8890         case OP_VOIDCALLVIRT:
8891         case OP_VOIDCALL: {
8892                 MonoCallInst *call = (MonoCallInst *)tree;
8893                 MonoMethodSignature *sig = call->signature;
8894                 int i, byref = FALSE;
8895
8896                 for (i = 0; i < sig->param_count; i++) {
8897                         if (sig->params [i]->byref) {
8898                                 byref = TRUE;
8899                                 break;
8900                         }
8901                 }
8902
8903                 if (byref)
8904                         memset (acp, 0, sizeof (MonoInst *) * acp_size);
8905
8906                 return;
8907         }
8908         default:
8909                 break;
8910         }
8911
8912         arity = mono_burg_arity [tree->opcode];
8913
8914         switch (arity) {
8915         case 0:
8916                 break;
8917         case 1:
8918                 mono_cprop_invalidate_values (tree->inst_i0, acp, acp_size);
8919                 break;
8920         case 2:
8921                 mono_cprop_invalidate_values (tree->inst_i0, acp, acp_size);
8922                 mono_cprop_invalidate_values (tree->inst_i1, acp, acp_size);
8923                 break;
8924         default:
8925                 g_assert_not_reached ();
8926         }
8927 }
8928
8929 static void
8930 mono_local_cprop_bb (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **acp, int acp_size)
8931 {
8932         MonoInst *tree = bb->code;
8933         int i;
8934
8935         if (!tree)
8936                 return;
8937
8938         for (; tree; tree = tree->next) {
8939
8940                 mono_cprop_copy_values (cfg, tree, acp);
8941
8942                 mono_cprop_invalidate_values (tree, acp, acp_size);
8943
8944                 if (tree->ssa_op == MONO_SSA_STORE  &&
8945                     (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG)) {
8946                         MonoInst *i1 = tree->inst_i1;
8947
8948                         acp [tree->inst_i0->inst_c0] = NULL;
8949
8950                         for (i = 0; i < acp_size; i++) {
8951                                 if (acp [i] && acp [i]->opcode != OP_ICONST &&
8952                                     acp [i]->inst_c0 == tree->inst_i0->inst_c0) {
8953                                         acp [i] = NULL;
8954                                 }
8955                         }
8956
8957                         if (i1->opcode == OP_ICONST) {
8958                                 acp [tree->inst_i0->inst_c0] = i1;
8959                                 //printf ("DEF1 BB%d %d\n", bb->block_num,tree->inst_i0->inst_c0);
8960                         }
8961                         if (i1->ssa_op == MONO_SSA_LOAD &&
8962                             (i1->inst_i0->opcode == OP_LOCAL || i1->inst_i0->opcode == OP_ARG) &&
8963                             (i1->inst_i0->inst_c0 != tree->inst_i0->inst_c0)) {
8964                                 acp [tree->inst_i0->inst_c0] = i1->inst_i0;
8965                                 //printf ("DEF2 BB%d %d %d\n", bb->block_num,tree->inst_i0->inst_c0,i1->inst_i0->inst_c0);
8966                         }
8967                 }
8968
8969                 /*
8970                   if (tree->opcode == CEE_BEQ) {
8971                   g_assert (tree->inst_i0->opcode == OP_COMPARE);
8972                   if (tree->inst_i0->inst_i0->opcode == OP_ICONST &&
8973                   tree->inst_i0->inst_i1->opcode == OP_ICONST) {
8974
8975                   tree->opcode = CEE_BR;
8976                   if (tree->inst_i0->inst_i0->opcode == tree->inst_i0->inst_i1->opcode) {
8977                   tree->inst_target_bb = tree->inst_true_bb;
8978                   } else {
8979                   tree->inst_target_bb = tree->inst_false_bb;
8980                   }
8981                   }
8982                   }
8983                 */
8984         }
8985 }
8986
8987 static void
8988 mono_local_cprop (MonoCompile *cfg)
8989 {
8990         MonoBasicBlock *bb;
8991         MonoInst **acp;
8992
8993         acp = alloca (sizeof (MonoInst *) * cfg->num_varinfo);
8994
8995         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
8996                 memset (acp, 0, sizeof (MonoInst *) * cfg->num_varinfo);
8997                 mono_local_cprop_bb (cfg, bb, acp, cfg->num_varinfo);
8998         }
8999 }
9000
9001 static void
9002 remove_critical_edges (MonoCompile *cfg) {
9003         MonoBasicBlock *bb;
9004         MonoBasicBlock *previous_bb;
9005
9006         if (cfg->verbose_level > 3) {
9007                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9008                         int i;
9009                         printf ("remove_critical_edges %s, BEFORE BB%d (in:", mono_method_full_name (cfg->method, TRUE), bb->block_num);
9010                         for (i = 0; i < bb->in_count; i++) {
9011                                 printf (" %d", bb->in_bb [i]->block_num);
9012                         }
9013                         printf (") (out:");
9014                         for (i = 0; i < bb->out_count; i++) {
9015                                 printf (" %d", bb->out_bb [i]->block_num);
9016                         }
9017                         printf (")");
9018                         if (bb->last_ins != NULL) {
9019                                 printf (" ");
9020                                 mono_print_tree (bb->last_ins);
9021                         }
9022                         printf ("\n");
9023                 }
9024         }
9025
9026         for (previous_bb = cfg->bb_entry, bb = previous_bb->next_bb; bb != NULL; previous_bb = previous_bb->next_bb, bb = bb->next_bb) {
9027                 if (bb->in_count > 1) {
9028                         int in_bb_index;
9029                         for (in_bb_index = 0; in_bb_index < bb->in_count; in_bb_index++) {
9030                                 MonoBasicBlock *in_bb = bb->in_bb [in_bb_index];
9031                                 if (in_bb->out_count > 1) {
9032                                         MonoBasicBlock *new_bb = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoBasicBlock));
9033                                         new_bb->block_num = cfg->num_bblocks++;
9034 //                                      new_bb->real_offset = bb->real_offset;
9035                                         new_bb->region = bb->region;
9036
9037                                         /* Do not alter the CFG while altering the BB list */
9038                                         if (previous_bb->region == bb->region) {
9039                                                 if (previous_bb != cfg->bb_entry) {
9040                                                         /* If previous_bb "followed through" to bb, */
9041                                                         /* keep it linked with a CEE_BR */
9042                                                         if ((previous_bb->last_ins == NULL) ||
9043                                                                         ((previous_bb->last_ins->opcode != CEE_BR) &&
9044                                                                         (! (MONO_IS_COND_BRANCH_OP (previous_bb->last_ins))) &&
9045                                                                         (previous_bb->last_ins->opcode != CEE_SWITCH))) {
9046                                                                 int i;
9047                                                                 /* Make sure previous_bb really falls through bb */
9048                                                                 for (i = 0; i < previous_bb->out_count; i++) {
9049                                                                         if (previous_bb->out_bb [i] == bb) {
9050                                                                                 MonoInst *jump;
9051                                                                                 MONO_INST_NEW (cfg, jump, CEE_BR);
9052                                                                                 MONO_ADD_INS (previous_bb, jump);
9053                                                                                 jump->cil_code = previous_bb->cil_code;
9054                                                                                 jump->inst_target_bb = bb;
9055                                                                                 break;
9056                                                                         }
9057                                                                 }
9058                                                         }
9059                                                 } else {
9060                                                         /* We cannot add any inst to the entry BB, so we must */
9061                                                         /* put a new BB in the middle to hold the CEE_BR */
9062                                                         MonoInst *jump;
9063                                                         MonoBasicBlock *new_bb_after_entry = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoBasicBlock));
9064                                                         new_bb_after_entry->block_num = cfg->num_bblocks++;
9065 //                                                      new_bb_after_entry->real_offset = bb->real_offset;
9066                                                         new_bb_after_entry->region = bb->region;
9067
9068                                                         MONO_INST_NEW (cfg, jump, CEE_BR);
9069                                                         MONO_ADD_INS (new_bb_after_entry, jump);
9070                                                         jump->cil_code = bb->cil_code;
9071                                                         jump->inst_target_bb = bb;
9072
9073                                                         previous_bb->next_bb = new_bb_after_entry;
9074                                                         previous_bb = new_bb_after_entry;
9075
9076                                                         if (cfg->verbose_level > 2) {
9077                                                                 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);
9078                                                         }
9079                                                 }
9080                                         }
9081
9082                                         /* Insert new_bb in the BB list */
9083                                         previous_bb->next_bb = new_bb;
9084                                         new_bb->next_bb = bb;
9085                                         previous_bb = new_bb;
9086
9087                                         /* Setup in_bb and out_bb */
9088                                         new_bb->in_bb = mono_mempool_alloc ((cfg)->mempool, sizeof (MonoBasicBlock*));
9089                                         new_bb->in_bb [0] = in_bb;
9090                                         new_bb->in_count = 1;
9091                                         new_bb->out_bb = mono_mempool_alloc ((cfg)->mempool, sizeof (MonoBasicBlock*));
9092                                         new_bb->out_bb [0] = bb;
9093                                         new_bb->out_count = 1;
9094
9095                                         /* Relink in_bb and bb to (from) new_bb */
9096                                         replace_out_block (in_bb, bb, new_bb);
9097                                         replace_out_block_in_code (in_bb, bb, new_bb);
9098                                         replace_in_block (bb, in_bb, new_bb);
9099
9100                                         if (cfg->verbose_level > 2) {
9101                                                 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);
9102                                         }
9103                                 }
9104                         }
9105                 }
9106         }
9107
9108         if (cfg->verbose_level > 3) {
9109                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
9110                         int i;
9111                         printf ("remove_critical_edges %s, AFTER BB%d (in:", mono_method_full_name (cfg->method, TRUE), bb->block_num);
9112                         for (i = 0; i < bb->in_count; i++) {
9113                                 printf (" %d", bb->in_bb [i]->block_num);
9114                         }
9115                         printf (") (out:");
9116                         for (i = 0; i < bb->out_count; i++) {
9117                                 printf (" %d", bb->out_bb [i]->block_num);
9118                         }
9119                         printf (")");
9120                         if (bb->last_ins != NULL) {
9121                                 printf (" ");
9122                                 mono_print_tree (bb->last_ins);
9123                         }
9124                         printf ("\n");
9125                 }
9126         }
9127 }
9128
9129 MonoCompile*
9130 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, gboolean run_cctors, gboolean compile_aot, int parts)
9131 {
9132         MonoMethodHeader *header = mono_method_get_header (method);
9133         guint8 *ip;
9134         MonoCompile *cfg;
9135         MonoJitInfo *jinfo;
9136         int dfn = 0, i, code_size_ratio;
9137
9138         if (!header)
9139                 return NULL;
9140
9141         ip = (guint8 *)header->code;
9142
9143         mono_jit_stats.methods_compiled++;
9144         if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
9145                 mono_profiler_method_jit (method);
9146
9147         cfg = g_new0 (MonoCompile, 1);
9148         cfg->method = method;
9149         cfg->mempool = mono_mempool_new ();
9150         cfg->opt = opts;
9151         cfg->prof_options = mono_profiler_get_events ();
9152         cfg->run_cctors = run_cctors;
9153         cfg->bb_hash = g_hash_table_new (NULL, NULL);
9154         cfg->domain = domain;
9155         cfg->verbose_level = mini_verbose;
9156         cfg->compile_aot = compile_aot;
9157         cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX *
9158                                             mono_method_get_header (method)->max_stack);
9159
9160         if (cfg->verbose_level > 2)
9161                 g_print ("converting method %s\n", mono_method_full_name (method, TRUE));
9162
9163         /*
9164          * create MonoInst* which represents arguments and local variables
9165          */
9166         mono_compile_create_vars (cfg);
9167
9168         if ((i = mono_method_to_ir (cfg, method, NULL, NULL, cfg->locals_start, NULL, NULL, NULL, 0, FALSE)) < 0) {
9169                 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
9170                         mono_profiler_method_end_jit (method, MONO_PROFILE_FAILED);
9171                 mono_destroy_compile (cfg);
9172                 return NULL;
9173         }
9174
9175         mono_jit_stats.basic_blocks += cfg->num_bblocks;
9176         mono_jit_stats.max_basic_blocks = MAX (cfg->num_bblocks, mono_jit_stats.max_basic_blocks);
9177
9178         if ((cfg->num_varinfo > 2000) && !mono_compile_aot) {
9179                 /*
9180                  * we disable some optimizations if there are too many variables
9181                  * because JIT time may become too expensive. The actual number needs
9182                  * to be tweaked and eventually the non-linear algorithms should be fixed.
9183                  */
9184                 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
9185                 cfg->disable_ssa = TRUE;
9186         }
9187
9188         /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
9189
9190         if (cfg->opt & MONO_OPT_BRANCH)
9191                 optimize_branches (cfg);
9192
9193         if (cfg->opt & MONO_OPT_SSAPRE) {
9194                 remove_critical_edges (cfg);
9195         }
9196
9197         /* Depth-first ordering on basic blocks */
9198         cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
9199
9200         df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
9201         if (cfg->num_bblocks != dfn + 1) {
9202                 MonoBasicBlock *bb;
9203
9204                 cfg->num_bblocks = dfn + 1;
9205
9206                 if (!header->clauses) {
9207                         /* remove unreachable code, because the code in them may be
9208                          * inconsistent  (access to dead variables for example) */
9209                         for (bb = cfg->bb_entry; bb;) {
9210                                 MonoBasicBlock *bbn = bb->next_bb;
9211
9212                                 if (bbn && bbn->region == -1 && !bbn->dfn) {
9213                                         if (cfg->verbose_level > 1)
9214                                                 g_print ("found unreachabel code in BB%d\n", bbn->block_num);
9215                                         bb->next_bb = bbn->next_bb;
9216                                         nullify_basic_block (bbn);
9217                                 } else {
9218                                         bb = bb->next_bb;
9219                                 }
9220                         }
9221                 }
9222         }
9223
9224         if (cfg->opt & MONO_OPT_LOOP) {
9225                 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
9226                 mono_compute_natural_loops (cfg);
9227         }
9228
9229         /* after method_to_ir */
9230         if (parts == 1)
9231                 return cfg;
9232
9233 //#define DEBUGSSA "logic_run"
9234 #define DEBUGSSA_CLASS "Tests"
9235 #ifdef DEBUGSSA
9236
9237         if (!header->num_clauses && !cfg->disable_ssa) {
9238                 mono_local_cprop (cfg);
9239                 mono_ssa_compute (cfg);
9240         }
9241 #else
9242
9243         /* fixme: add all optimizations which requires SSA */
9244         if (cfg->opt & (MONO_OPT_DEADCE | MONO_OPT_ABCREM | MONO_OPT_SSAPRE)) {
9245                 if (!(cfg->comp_done & MONO_COMP_SSA) && !header->num_clauses && !cfg->disable_ssa) {
9246                         mono_local_cprop (cfg);
9247                         mono_ssa_compute (cfg);
9248
9249                         if (cfg->verbose_level >= 2) {
9250                                 print_dfn (cfg);
9251                         }
9252                 }
9253         }
9254 #endif
9255
9256         /* after SSA translation */
9257         if (parts == 2)
9258                 return cfg;
9259
9260         if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
9261                 if (cfg->comp_done & MONO_COMP_SSA) {
9262                         mono_ssa_cprop (cfg);
9263                 } else {
9264                         mono_local_cprop (cfg);
9265                 }
9266         }
9267
9268         if (cfg->comp_done & MONO_COMP_SSA) {
9269                 mono_ssa_deadce (cfg);
9270
9271                 //mono_ssa_strength_reduction (cfg);
9272
9273                 if ((cfg->flags & MONO_CFG_HAS_LDELEMA) && (cfg->opt & MONO_OPT_ABCREM))
9274                         mono_perform_abc_removal (cfg);
9275
9276                 if (cfg->opt & MONO_OPT_SSAPRE)
9277                         mono_perform_ssapre (cfg);
9278
9279                 mono_ssa_remove (cfg);
9280
9281                 if (cfg->opt & MONO_OPT_BRANCH)
9282                         optimize_branches (cfg);
9283         }
9284
9285         /* after SSA removal */
9286         if (parts == 3)
9287                 return cfg;
9288
9289         decompose_pass (cfg);
9290
9291         if (cfg->got_var) {
9292                 GList *regs;
9293
9294                 g_assert (cfg->got_var_allocated);
9295
9296                 /*
9297                  * Allways allocate the GOT var to a register, because keeping it
9298                  * in memory will increase the number of live temporaries in some
9299                  * code created by inssel.brg, leading to the well known spills+
9300                  * branches problem. Testcase: mcs crash in
9301                  * System.MonoCustomAttrs:GetCustomAttributes.
9302                  */
9303                 regs = mono_arch_get_global_int_regs (cfg);
9304                 g_assert (regs);
9305                 cfg->got_var->opcode = OP_REGVAR;
9306                 cfg->got_var->dreg = GPOINTER_TO_INT (regs->data);
9307                 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
9308
9309                 g_list_free (regs);
9310         }
9311
9312         if (cfg->opt & MONO_OPT_LINEARS) {
9313                 GList *vars, *regs;
9314
9315                 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
9316                 cfg->comp_done &= ~MONO_COMP_LIVENESS;
9317                 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
9318                         mono_analyze_liveness (cfg);
9319
9320                 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
9321                         regs = mono_arch_get_global_int_regs (cfg);
9322                         if (cfg->got_var)
9323                                 regs = g_list_delete_link (regs, regs);
9324                         mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
9325                 }
9326         }
9327
9328         //mono_print_code (cfg);
9329
9330     //print_dfn (cfg);
9331
9332         /* variables are allocated after decompose, since decompose could create temps */
9333         mono_arch_allocate_vars (cfg);
9334
9335         if (cfg->opt & MONO_OPT_CFOLD)
9336                 mono_constant_fold (cfg);
9337
9338         mini_select_instructions (cfg);
9339
9340         mono_codegen (cfg);
9341         if (cfg->verbose_level >= 2) {
9342                 char *id =  mono_method_full_name (cfg->method, FALSE);
9343                 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
9344                 g_free (id);
9345         }
9346
9347         if (cfg->method->dynamic) {
9348                 jinfo = g_malloc0 (sizeof (MonoJitInfo) + (header->num_clauses * sizeof (MonoJitExceptionInfo)));
9349         } else {
9350                 /* we access cfg->domain->mp */
9351                 mono_domain_lock (cfg->domain);
9352                 jinfo = mono_mempool_alloc0 (cfg->domain->mp, sizeof (MonoJitInfo) + (header->num_clauses * sizeof (MonoJitExceptionInfo)));
9353                 mono_domain_unlock (cfg->domain);
9354         }
9355
9356         jinfo->method = method;
9357         jinfo->code_start = cfg->native_code;
9358         jinfo->code_size = cfg->code_len;
9359         jinfo->used_regs = cfg->used_int_regs;
9360         jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
9361         jinfo->cas_inited = FALSE; /* initialization delayed at the first stalk walk using this method */
9362
9363         if (header->num_clauses) {
9364                 int i;
9365
9366                 jinfo->num_clauses = header->num_clauses;
9367
9368                 for (i = 0; i < header->num_clauses; i++) {
9369                         MonoExceptionClause *ec = &header->clauses [i];
9370                         MonoJitExceptionInfo *ei = &jinfo->clauses [i];
9371                         MonoBasicBlock *tblock;
9372                         MonoInst *exvar;
9373
9374                         ei->flags = ec->flags;
9375
9376                         exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
9377                         ei->exvar_offset = exvar ? exvar->inst_offset : 0;
9378
9379                         if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
9380                                 tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->data.filter_offset);
9381                                 g_assert (tblock);
9382                                 ei->data.filter = cfg->native_code + tblock->native_offset;
9383                         } else {
9384                                 ei->data.catch_class = ec->data.catch_class;
9385                         }
9386
9387                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset);
9388                         g_assert (tblock);
9389                         ei->try_start = cfg->native_code + tblock->native_offset;
9390                         g_assert (tblock->native_offset);
9391                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset + ec->try_len);
9392                         g_assert (tblock);
9393                         ei->try_end = cfg->native_code + tblock->native_offset;
9394                         g_assert (tblock->native_offset);
9395                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->handler_offset);
9396                         g_assert (tblock);
9397                         ei->handler_start = cfg->native_code + tblock->native_offset;
9398                 }
9399         }
9400
9401         cfg->jit_info = jinfo;
9402 #if defined(__arm__)
9403         mono_arch_fixup_jinfo (cfg);
9404 #endif
9405
9406         mono_domain_lock (cfg->domain);
9407         mono_jit_info_table_add (cfg->domain, jinfo);
9408
9409         if (cfg->method->dynamic)
9410                 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = jinfo;
9411         mono_domain_unlock (cfg->domain);
9412
9413         /* collect statistics */
9414         mono_jit_stats.allocated_code_size += cfg->code_len;
9415         code_size_ratio = cfg->code_len;
9416         if (code_size_ratio > mono_jit_stats.biggest_method_size) {
9417                         mono_jit_stats.biggest_method_size = code_size_ratio;
9418                         mono_jit_stats.biggest_method = method;
9419         }
9420         code_size_ratio = (code_size_ratio * 100) / mono_method_get_header (method)->code_size;
9421         if (code_size_ratio > mono_jit_stats.max_code_size_ratio) {
9422                 mono_jit_stats.max_code_size_ratio = code_size_ratio;
9423                 mono_jit_stats.max_ratio_method = method;
9424         }
9425         mono_jit_stats.native_code_size += cfg->code_len;
9426
9427         if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
9428                 mono_profiler_method_end_jit (method, MONO_PROFILE_OK);
9429
9430         /* this can only be set if the security manager is active */
9431         if (cfg->exception_type == MONO_EXCEPTION_SECURITY_LINKDEMAND) {
9432                 MonoAssembly *assembly = mono_image_get_assembly (method->klass->image);
9433                 MonoReflectionAssembly *refass = (MonoReflectionAssembly*) mono_assembly_get_object (domain, assembly);
9434                 MonoReflectionMethod *refmet = mono_method_get_object (domain, method, NULL);
9435                 MonoSecurityManager* secman = mono_security_manager_get_methods ();
9436                 MonoObject *exc = NULL;
9437                 gpointer args [3];
9438
9439                 args [0] = &cfg->exception_data;
9440                 args [1] = refass;
9441                 args [2] = refmet;
9442                 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
9443
9444                 mono_destroy_compile (cfg);
9445                 cfg = NULL;
9446
9447                 mono_raise_exception ((MonoException*)exc);
9448         }
9449
9450         return cfg;
9451 }
9452
9453 static gpointer
9454 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain)
9455 {
9456         MonoCompile *cfg;
9457         GHashTable *jit_code_hash;
9458         gpointer code = NULL;
9459         guint32 opt;
9460         MonoJitInfo *info;
9461
9462         opt = default_opt;
9463
9464         jit_code_hash = target_domain->jit_code_hash;
9465
9466         method = mono_get_inflated_method (method);
9467
9468 #ifdef MONO_USE_AOT_COMPILER
9469         if (!mono_compile_aot && (opt & MONO_OPT_AOT)) {
9470                 MonoJitInfo *info;
9471                 MonoDomain *domain = mono_domain_get ();
9472
9473                 mono_domain_lock (domain);
9474
9475                 mono_class_init (method->klass);
9476                 if ((info = mono_aot_get_method (domain, method))) {
9477                         g_hash_table_insert (domain->jit_code_hash, method, info);
9478                         mono_domain_unlock (domain);
9479                         mono_runtime_class_init (mono_class_vtable (domain, method->klass));
9480                         return info->code_start;
9481                 }
9482
9483                 mono_domain_unlock (domain);
9484         }
9485 #endif
9486
9487         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
9488             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
9489                 MonoMethod *nm;
9490                 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
9491
9492                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
9493                         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);
9494
9495                 if (!piinfo->addr) {
9496                         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
9497                                 piinfo->addr = mono_lookup_internal_call (method);
9498                         else
9499                                 if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
9500                                         mono_lookup_pinvoke_call (method, NULL, NULL);
9501                 }
9502                         nm = mono_marshal_get_native_wrapper (method);
9503                         return mono_get_addr_from_ftnptr (mono_compile_method (nm));
9504
9505                         //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
9506                         //mono_debug_add_wrapper (method, nm);
9507         } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
9508                 const char *name = method->name;
9509                 MonoMethod *nm;
9510
9511                 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
9512                         if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
9513                                 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
9514                                 g_assert (mi);
9515                                 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper (mi));
9516                         } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
9517                                 nm = mono_marshal_get_delegate_invoke (method);
9518                                         return mono_get_addr_from_ftnptr (mono_compile_method (nm));
9519                         } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
9520                                 nm = mono_marshal_get_delegate_begin_invoke (method);
9521                                 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
9522                         } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
9523                                 nm = mono_marshal_get_delegate_end_invoke (method);
9524                                 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
9525                         }
9526                 }
9527                 return NULL;
9528         }
9529
9530         cfg = mini_method_compile (method, opt, target_domain, TRUE, FALSE, 0);
9531
9532         if (!cfg) {
9533                 /* Throw a type load exception if needed */
9534                 MonoLoaderError *error = mono_loader_get_last_error ();
9535
9536                 if (error) {
9537                         MonoException *ex = mini_loader_error_to_exception (error);
9538                         mono_loader_clear_error ();
9539                         mono_raise_exception (ex);
9540                 }
9541                 else
9542                         g_assert_not_reached ();
9543         }
9544
9545         mono_domain_lock (target_domain);
9546
9547         /* Check if some other thread already did the job. In this case, we can
9548        discard the code this thread generated. */
9549
9550         if ((info = g_hash_table_lookup (target_domain->jit_code_hash, method))) {
9551                 /* We can't use a domain specific method in another domain */
9552                 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
9553                         code = info->code_start;
9554 //                      printf("Discarding code for method %s\n", method->name);
9555                 }
9556         }
9557
9558         if (code == NULL) {
9559                 g_hash_table_insert (jit_code_hash, method, cfg->jit_info);
9560                 code = cfg->native_code;
9561         }
9562
9563         mono_destroy_compile (cfg);
9564
9565         if (target_domain->jump_target_hash) {
9566                 MonoJumpInfo patch_info;
9567                 GSList *list, *tmp;
9568                 list = g_hash_table_lookup (target_domain->jump_target_hash, method);
9569                 if (list) {
9570                         patch_info.next = NULL;
9571                         patch_info.ip.i = 0;
9572                         patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
9573                         patch_info.data.method = method;
9574                         g_hash_table_remove (target_domain->jump_target_hash, method);
9575                 }
9576                 for (tmp = list; tmp; tmp = tmp->next)
9577                         mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, TRUE);
9578                 g_slist_free (list);
9579         }
9580
9581         mono_domain_unlock (target_domain);
9582
9583         mono_runtime_class_init (mono_class_vtable (target_domain, method->klass));
9584         return code;
9585 }
9586
9587 static gpointer
9588 mono_jit_compile_method_with_opt (MonoMethod *method, guint32 opt)
9589 {
9590         /* FIXME: later copy the code from mono */
9591         MonoDomain *target_domain, *domain = mono_domain_get ();
9592         MonoJitInfo *info;
9593         gpointer p;
9594
9595         if (opt & MONO_OPT_SHARED)
9596                 target_domain = mono_get_root_domain ();
9597         else
9598                 target_domain = domain;
9599
9600         mono_domain_lock (target_domain);
9601
9602         if ((info = g_hash_table_lookup (target_domain->jit_code_hash, method))) {
9603                 /* We can't use a domain specific method in another domain */
9604                 if (! ((domain != target_domain) && !info->domain_neutral)) {
9605                         mono_domain_unlock (target_domain);
9606                         mono_jit_stats.methods_lookups++;
9607                         mono_runtime_class_init (mono_class_vtable (domain, method->klass));
9608                         return mono_create_ftnptr (domain, info->code_start);
9609                 }
9610         }
9611
9612         mono_domain_unlock (target_domain);
9613         p = mono_jit_compile_method_inner (method, target_domain);
9614         return mono_create_ftnptr (domain, p);
9615 }
9616
9617 static gpointer
9618 mono_jit_compile_method (MonoMethod *method)
9619 {
9620         return mono_jit_compile_method_with_opt (method, default_opt);
9621 }
9622
9623 static void
9624 invalidated_delegate_trampoline (char *desc)
9625 {
9626         g_error ("Unmanaged code called delegate of type %s which was already garbage collected.\n"
9627                  "See http://www.go-mono.com/delegate.html for an explanation and ways to fix this.",
9628                  desc);
9629 }
9630
9631 /*
9632  * mono_jit_free_method:
9633  *
9634  *  Free all memory allocated by the JIT for METHOD.
9635  */
9636 static void
9637 mono_jit_free_method (MonoDomain *domain, MonoMethod *method)
9638 {
9639         MonoJitDynamicMethodInfo *ji;
9640         gboolean destroy = TRUE;
9641
9642         g_assert (method->dynamic);
9643
9644         mono_domain_lock (domain);
9645         ji = mono_dynamic_code_hash_lookup (domain, method);
9646         mono_domain_unlock (domain);
9647
9648         if (!ji)
9649                 return;
9650         mono_domain_lock (domain);
9651         g_hash_table_remove (domain->dynamic_code_hash, method);
9652         g_hash_table_remove (domain->jit_code_hash, method);
9653         mono_domain_unlock (domain);
9654
9655 #ifdef MONO_ARCH_HAVE_INVALIDATE_METHOD
9656         if (debug_options.keep_delegates && method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
9657                 /*
9658                  * Instead of freeing the code, change it to call an error routine
9659                  * so people can fix their code.
9660                  */
9661                 char *type = mono_type_full_name (&method->klass->byval_arg);
9662                 char *type_and_method = g_strdup_printf ("%s.%s", type, method->name);
9663
9664                 g_free (type);
9665                 mono_arch_invalidate_method (ji->ji, invalidated_delegate_trampoline, type_and_method);
9666                 destroy = FALSE;
9667         }
9668 #endif
9669
9670         /*
9671          * This needs to be done before freeing code_mp, since the code address is the
9672          * key in the table, so if we the code_mp first, another thread can grab the
9673          * same code address and replace our entry in the table.
9674          */
9675         mono_jit_info_table_remove (domain, ji->ji);
9676
9677         if (destroy)
9678                 mono_code_manager_destroy (ji->code_mp);
9679         g_free (ji->ji);
9680         g_free (ji);
9681 }
9682
9683 static gpointer
9684 mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method)
9685 {
9686         MonoDomain *target_domain;
9687         MonoJitInfo *info;
9688
9689         if (default_opt & MONO_OPT_SHARED)
9690                 target_domain = mono_get_root_domain ();
9691         else
9692                 target_domain = domain;
9693
9694         mono_domain_lock (target_domain);
9695
9696         if ((info = g_hash_table_lookup (target_domain->jit_code_hash, method))) {
9697                 /* We can't use a domain specific method in another domain */
9698                 if (! ((domain != target_domain) && !info->domain_neutral)) {
9699                         mono_domain_unlock (target_domain);
9700                         mono_jit_stats.methods_lookups++;
9701                         return info->code_start;
9702                 }
9703         }
9704
9705         mono_domain_unlock (target_domain);
9706
9707         return NULL;
9708 }
9709
9710 /**
9711  * mono_jit_runtime_invoke:
9712  * @method: the method to invoke
9713  * @obj: this pointer
9714  * @params: array of parameter values.
9715  * @exc: used to catch exceptions objects
9716  */
9717 static MonoObject*
9718 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
9719 {
9720         MonoMethod *invoke;
9721         MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc, void* compiled_method);
9722         void* compiled_method;
9723
9724         if (obj == NULL && !(method->flags & METHOD_ATTRIBUTE_STATIC) && !method->string_ctor && (method->wrapper_type == 0)) {
9725                 g_warning ("Ignoring invocation of an instance method on a NULL instance.\n");
9726                 return NULL;
9727         }
9728
9729         method = mono_get_inflated_method (method);
9730         invoke = mono_marshal_get_runtime_invoke (method);
9731         runtime_invoke = mono_jit_compile_method (invoke);
9732
9733         /* We need this here becuase mono_marshal_get_runtime_invoke can be place
9734          * the helper method in System.Object and not the target class
9735          */
9736         mono_runtime_class_init (mono_class_vtable (mono_domain_get (), method->klass));
9737
9738         compiled_method = mono_jit_compile_method (method);
9739         return runtime_invoke (obj, params, exc, compiled_method);
9740 }
9741
9742 #ifdef PLATFORM_WIN32
9743 #define GET_CONTEXT \
9744         struct sigcontext *ctx = (struct sigcontext*)_dummy;
9745 #else
9746 #ifdef __sparc
9747 #define GET_CONTEXT \
9748     void *ctx = context;
9749 #elif defined(sun)    // Solaris x86
9750 #define GET_CONTEXT \
9751     ucontext_t *uctx = context; \
9752     struct sigcontext *ctx = (struct sigcontext *)&(uctx->uc_mcontext);
9753 #elif defined(__ppc__) || defined (__powerpc__) || defined (__s390__) || defined (MONO_ARCH_USE_SIGACTION)
9754 #define GET_CONTEXT \
9755     void *ctx = context;
9756 #else
9757 #define GET_CONTEXT \
9758         void **_p = (void **)&_dummy; \
9759         struct sigcontext *ctx = (struct sigcontext *)++_p;
9760 #endif
9761 #endif
9762
9763 #ifdef MONO_ARCH_USE_SIGACTION
9764 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy, siginfo_t *info, void *context)
9765 #else
9766 #define SIG_HANDLER_SIGNATURE(ftn) ftn (int _dummy)
9767 #endif
9768
9769 static void
9770 SIG_HANDLER_SIGNATURE (sigfpe_signal_handler)
9771 {
9772         MonoException *exc = NULL;
9773 #ifndef MONO_ARCH_USE_SIGACTION
9774         void *info = NULL;
9775 #endif
9776         GET_CONTEXT;
9777
9778 #if defined(MONO_ARCH_HAVE_IS_INT_OVERFLOW)
9779         if (mono_arch_is_int_overflow (ctx, info))
9780                 exc = mono_get_exception_arithmetic ();
9781         else
9782                 exc = mono_get_exception_divide_by_zero ();
9783 #else
9784         exc = mono_get_exception_divide_by_zero ();
9785 #endif
9786
9787         mono_arch_handle_exception (ctx, exc, FALSE);
9788 }
9789
9790 static void
9791 SIG_HANDLER_SIGNATURE (sigill_signal_handler)
9792 {
9793         MonoException *exc;
9794         GET_CONTEXT
9795         exc = mono_get_exception_execution_engine ("SIGILL");
9796
9797         mono_arch_handle_exception (ctx, exc, FALSE);
9798 }
9799
9800 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
9801
9802 #ifndef MONO_ARCH_USE_SIGACTION
9803 #error "Can't use sigaltstack without sigaction"
9804 #endif
9805
9806 #endif
9807
9808 static void
9809 SIG_HANDLER_SIGNATURE (sigsegv_signal_handler)
9810 {
9811         MonoException *exc = NULL;
9812 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
9813         MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
9814 #endif
9815         GET_CONTEXT
9816
9817 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
9818         /* Can't allocate memory using Boehm GC on altstack */
9819         if (jit_tls->stack_size &&
9820                 ((guint8*)info->si_addr >= (guint8*)jit_tls->end_of_stack - jit_tls->stack_size) &&
9821                 ((guint8*)info->si_addr < (guint8*)jit_tls->end_of_stack))
9822                 exc = mono_domain_get ()->stack_overflow_ex;
9823         else
9824                 exc = mono_domain_get ()->null_reference_ex;
9825 #endif
9826
9827         if (debug_options.abort_on_sigsegv) {
9828                 MonoJitInfo *ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context(ctx));
9829                 if (!ji) {
9830                         fprintf (stderr, "Got SIGSEGV while in unmanaged code, and the 'abort-on-sigsegv' MONO_DEBUG option is set. Aborting...\n");
9831                         /* Segfault in unmanaged code */
9832                         abort ();
9833                 }
9834         }
9835
9836         mono_arch_handle_exception (ctx, exc, FALSE);
9837 }
9838
9839 static void
9840 SIG_HANDLER_SIGNATURE (sigusr1_signal_handler)
9841 {
9842         gboolean running_managed;
9843         MonoException *exc;
9844         void *ji;
9845
9846         GET_CONTEXT;
9847
9848         /*
9849          * FIXME:
9850          * This is an async signal, so the code below must not call anything which
9851          * is not async safe. That includes the pthread locking functions. If we
9852          * know that we interrupted managed code, then locking is safe.
9853          */
9854         ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context(ctx));
9855         running_managed = ji != NULL;
9856
9857         exc = mono_thread_request_interruption (running_managed);
9858         if (!exc) return;
9859
9860         mono_arch_handle_exception (ctx, exc, FALSE);
9861 }
9862
9863 static void
9864 SIG_HANDLER_SIGNATURE (sigprof_signal_handler)
9865 {
9866         GET_CONTEXT;
9867
9868         mono_profiler_stat_hit (mono_arch_ip_from_context (ctx), ctx);
9869 }
9870
9871 static void
9872 SIG_HANDLER_SIGNATURE (sigquit_signal_handler)
9873 {
9874        MonoException *exc;
9875        GET_CONTEXT
9876
9877        exc = mono_get_exception_execution_engine ("Interrupted (SIGQUIT).");
9878
9879        mono_arch_handle_exception (ctx, exc, FALSE);
9880 }
9881
9882 static void
9883 SIG_HANDLER_SIGNATURE (sigint_signal_handler)
9884 {
9885         MonoException *exc;
9886         GET_CONTEXT
9887
9888         exc = mono_get_exception_execution_engine ("Interrupted (SIGINT).");
9889
9890         mono_arch_handle_exception (ctx, exc, FALSE);
9891 }
9892
9893 static void
9894 SIG_HANDLER_SIGNATURE (sigusr2_signal_handler)
9895 {
9896         gboolean enabled = mono_trace_is_enabled ();
9897
9898         mono_trace_enable (!enabled);
9899 }
9900
9901 #ifndef PLATFORM_WIN32
9902 static void
9903 add_signal_handler (int signo, gpointer handler)
9904 {
9905         struct sigaction sa;
9906
9907 #ifdef MONO_ARCH_USE_SIGACTION
9908         sa.sa_sigaction = handler;
9909         sigemptyset (&sa.sa_mask);
9910         sa.sa_flags = SA_SIGINFO;
9911 #else
9912         sa.sa_handler = handler;
9913         sigemptyset (&sa.sa_mask);
9914         sa.sa_flags = 0;
9915 #endif
9916         g_assert (sigaction (signo, &sa, NULL) != -1);
9917 }
9918 #endif
9919
9920 static void
9921 mono_runtime_install_handlers (void)
9922 {
9923 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
9924         struct sigaction sa;
9925 #endif
9926
9927 #ifdef PLATFORM_WIN32
9928         win32_seh_init();
9929         win32_seh_set_handler(SIGFPE, sigfpe_signal_handler);
9930         win32_seh_set_handler(SIGILL, sigill_signal_handler);
9931         win32_seh_set_handler(SIGSEGV, sigsegv_signal_handler);
9932         if (debug_options.handle_sigint)
9933                 win32_seh_set_handler(SIGINT, sigint_signal_handler);
9934
9935 #else /* !PLATFORM_WIN32 */
9936
9937         /* libpthreads has its own implementation of sigaction(),
9938          * but it seems to work well with our current exception
9939          * handlers. If not we must call syscall directly instead
9940          * of sigaction */
9941
9942         if (debug_options.handle_sigint)
9943                 add_signal_handler (SIGINT, sigint_signal_handler);
9944
9945         add_signal_handler (SIGFPE, sigfpe_signal_handler);
9946         add_signal_handler (SIGQUIT, sigquit_signal_handler);
9947         add_signal_handler (SIGILL, sigill_signal_handler);
9948         add_signal_handler (SIGBUS, sigsegv_signal_handler);
9949         if (mono_jit_trace_calls != NULL)
9950                 add_signal_handler (SIGUSR2, sigusr2_signal_handler);
9951
9952         add_signal_handler (mono_thread_get_abort_signal (), sigusr1_signal_handler);
9953         signal (SIGPIPE, SIG_IGN);
9954
9955         /* catch SIGSEGV */
9956 #ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
9957         sa.sa_sigaction = sigsegv_signal_handler;
9958         sigemptyset (&sa.sa_mask);
9959         sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
9960         g_assert (sigaction (SIGSEGV, &sa, NULL) != -1);
9961 #else
9962         add_signal_handler (SIGSEGV, sigsegv_signal_handler);
9963 #endif
9964
9965 #endif /* PLATFORM_WIN32 */
9966 }
9967
9968
9969 #ifdef HAVE_LINUX_RTC_H
9970 #include <linux/rtc.h>
9971 #include <sys/ioctl.h>
9972 #include <fcntl.h>
9973 static int rtc_fd = -1;
9974
9975 static int
9976 enable_rtc_timer (gboolean enable)
9977 {
9978         int flags;
9979         flags = fcntl (rtc_fd, F_GETFL);
9980         if (flags < 0) {
9981                 perror ("getflags");
9982                 return 0;
9983         }
9984         if (enable)
9985                 flags |= FASYNC;
9986         else
9987                 flags &= ~FASYNC;
9988         if (fcntl (rtc_fd, F_SETFL, flags) == -1) {
9989                 perror ("setflags");
9990                 return 0;
9991         }
9992         return 1;
9993 }
9994 #endif
9995
9996 static void
9997 setup_stat_profiler (void)
9998 {
9999 #ifdef ITIMER_PROF
10000         struct itimerval itval;
10001         static int inited = 0;
10002 #ifdef HAVE_LINUX_RTC_H
10003         const char *rtc_freq;
10004         if (!inited && (rtc_freq = g_getenv ("MONO_RTC"))) {
10005                 int freq = 0;
10006                 inited = 1;
10007                 if (*rtc_freq)
10008                         freq = atoi (rtc_freq);
10009                 if (!freq)
10010                         freq = 1024;
10011                 rtc_fd = open ("/dev/rtc", O_RDONLY);
10012                 if (rtc_fd == -1) {
10013                         perror ("open /dev/rtc");
10014                         return;
10015                 }
10016                 add_signal_handler (SIGPROF, sigprof_signal_handler);
10017                 if (ioctl (rtc_fd, RTC_IRQP_SET, freq) == -1) {
10018                         perror ("set rtc freq");
10019                         return;
10020                 }
10021                 if (ioctl (rtc_fd, RTC_PIE_ON, 0) == -1) {
10022                         perror ("start rtc");
10023                         return;
10024                 }
10025                 if (fcntl (rtc_fd, F_SETSIG, SIGPROF) == -1) {
10026                         perror ("setsig");
10027                         return;
10028                 }
10029                 if (fcntl (rtc_fd, F_SETOWN, getpid ()) == -1) {
10030                         perror ("setown");
10031                         return;
10032                 }
10033                 enable_rtc_timer (TRUE);
10034                 return;
10035         }
10036         if (rtc_fd >= 0)
10037                 return;
10038 #endif
10039
10040         itval.it_interval.tv_usec = 999;
10041         itval.it_interval.tv_sec = 0;
10042         itval.it_value = itval.it_interval;
10043         setitimer (ITIMER_PROF, &itval, NULL);
10044         if (inited)
10045                 return;
10046         inited = 1;
10047         add_signal_handler (SIGPROF, sigprof_signal_handler);
10048 #endif
10049 }
10050
10051 /* mono_jit_create_remoting_trampoline:
10052  * @method: pointer to the method info
10053  *
10054  * Creates a trampoline which calls the remoting functions. This
10055  * is used in the vtable of transparent proxies.
10056  *
10057  * Returns: a pointer to the newly created code
10058  */
10059 static gpointer
10060 mono_jit_create_remoting_trampoline (MonoMethod *method, MonoRemotingTarget target)
10061 {
10062         MonoMethod *nm;
10063         guint8 *addr = NULL;
10064
10065         if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
10066             (mono_method_signature (method)->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
10067                 nm = mono_marshal_get_remoting_invoke_for_target (method, target);
10068                 addr = mono_compile_method (nm);
10069         } else {
10070                 addr = mono_compile_method (method);
10071         }
10072         return mono_get_addr_from_ftnptr (addr);
10073 }
10074
10075 static void
10076 mini_parse_debug_options (void)
10077 {
10078         char *options = getenv ("MONO_DEBUG");
10079         gchar **args, **ptr;
10080
10081         if (!options)
10082                 return;
10083
10084         args = g_strsplit (options, ",", -1);
10085
10086         for (ptr = args; ptr && *ptr; ptr++) {
10087                 const char *arg = *ptr;
10088
10089                 if (!strcmp (arg, "handle-sigint"))
10090                         debug_options.handle_sigint = TRUE;
10091                 else if (!strcmp (arg, "keep-delegates"))
10092                         debug_options.keep_delegates = TRUE;
10093                 else if (!strcmp (arg, "abort-on-sigsegv"))
10094                         debug_options.abort_on_sigsegv = TRUE;
10095                 else {
10096                         fprintf (stderr, "Invalid option for the MONO_DEBUG env variable: %s\n", arg);
10097                         fprintf (stderr, "Available options: 'handle-sigint', 'keep-delegates', 'abort-on-sigsegv'\n");
10098                         exit (1);
10099                 }
10100         }
10101 }
10102
10103 MonoDomain *
10104 mini_init (const char *filename)
10105 {
10106         MonoDomain *domain;
10107
10108         /* Happens when using the embedding interface */
10109         if (default_opt == 0)
10110                 default_opt = mono_parse_default_optimizations (NULL);
10111
10112         InitializeCriticalSection (&jit_mutex);
10113
10114         global_codeman = mono_code_manager_new ();
10115         jit_icall_name_hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
10116
10117         mono_arch_cpu_init ();
10118
10119         mono_init_trampolines ();
10120
10121         mono_init_exceptions ();
10122
10123         if (!g_thread_supported ())
10124                 g_thread_init (NULL);
10125
10126         if (getenv ("MONO_DEBUG") != NULL)
10127                 mini_parse_debug_options ();
10128
10129         if (mono_running_on_valgrind ()) {
10130                 gsize stack_bottom = (gsize)&domain;
10131                 stack_bottom += 4095;
10132                 stack_bottom &= ~4095;
10133                 GC_stackbottom = (char*)stack_bottom;
10134         }
10135         MONO_GC_PRE_INIT ();
10136
10137         mono_jit_tls_id = TlsAlloc ();
10138         setup_jit_tls_data ((gpointer)-1, mono_thread_abort);
10139
10140         mono_burg_init ();
10141
10142         if (default_opt & MONO_OPT_AOT)
10143                 mono_aot_init ();
10144
10145         mono_runtime_install_handlers ();
10146         mono_threads_install_cleanup (mini_thread_cleanup);
10147
10148 #define JIT_TRAMPOLINES_WORK
10149 #ifdef JIT_TRAMPOLINES_WORK
10150         mono_install_compile_method (mono_jit_compile_method);
10151         mono_install_free_method (mono_jit_free_method);
10152         mono_install_trampoline (mono_create_jit_trampoline);
10153         mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
10154         mono_install_delegate_trampoline (mono_create_delegate_trampoline);
10155 #endif
10156 #define JIT_INVOKE_WORKS
10157 #ifdef JIT_INVOKE_WORKS
10158         mono_install_runtime_invoke (mono_jit_runtime_invoke);
10159         mono_install_handler (mono_arch_get_throw_exception ());
10160 #endif
10161         mono_install_stack_walk (mono_jit_walk_stack);
10162         mono_install_init_vtable (mono_aot_init_vtable);
10163         mono_install_get_cached_class_info (mono_aot_get_cached_class_info);
10164         mono_install_jit_info_find_in_aot (mono_aot_find_jit_info);
10165
10166         domain = mono_init_from_assembly (filename, filename);
10167         mono_icall_init ();
10168
10169         mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
10170                                 ves_icall_get_frame_info);
10171         mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
10172                                 ves_icall_get_trace);
10173         mono_add_internal_call ("System.Exception::get_trace",
10174                                 ves_icall_System_Exception_get_trace);
10175         mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityFrame",
10176                                 ves_icall_System_Security_SecurityFrame_GetSecurityFrame);
10177         mono_add_internal_call ("System.Security.SecurityFrame::_GetSecurityStack",
10178                                 ves_icall_System_Security_SecurityFrame_GetSecurityStack);
10179         mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
10180                                 mono_runtime_install_handlers);
10181
10182
10183         create_helper_signature ();
10184
10185 #define JIT_CALLS_WORK
10186 #ifdef JIT_CALLS_WORK
10187         /* Needs to be called here since register_jit_icall depends on it */
10188         mono_marshal_init ();
10189
10190         mono_arch_register_lowlevel_calls ();
10191         register_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
10192         register_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
10193         register_icall (mono_trace_enter_method, "mono_trace_enter_method", NULL, TRUE);
10194         register_icall (mono_trace_leave_method, "mono_trace_leave_method", NULL, TRUE);
10195         register_icall (mono_get_lmf_addr, "mono_get_lmf_addr", "ptr", TRUE);
10196         register_icall (mono_jit_thread_attach, "mono_jit_thread_attach", "void", TRUE);
10197         register_icall (mono_domain_get, "mono_domain_get", "ptr", TRUE);
10198
10199         register_icall (mono_arch_get_throw_exception (), "mono_arch_throw_exception", "void object", TRUE);
10200         register_icall (mono_arch_get_rethrow_exception (), "mono_arch_rethrow_exception", "void object", TRUE);
10201         register_icall (mono_arch_get_throw_exception_by_name (), "mono_arch_throw_exception_by_name", "void ptr", TRUE);
10202 #if MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION
10203         register_icall (mono_arch_get_throw_corlib_exception (), "mono_arch_throw_corlib_exception",
10204                                  "void ptr", TRUE);
10205 #endif
10206         register_icall (mono_thread_get_pending_exception, "mono_thread_get_pending_exception", "object", FALSE);
10207         register_icall (mono_thread_interruption_checkpoint, "mono_thread_interruption_checkpoint", "void", FALSE);
10208         register_icall (mono_thread_force_interruption_checkpoint, "mono_thread_force_interruption_checkpoint", "void", FALSE);
10209         register_icall (mono_load_remote_field_new, "mono_load_remote_field_new", "object object ptr ptr", FALSE);
10210         register_icall (mono_store_remote_field_new, "mono_store_remote_field_new", "void object ptr ptr object", FALSE);
10211
10212         /*
10213          * NOTE, NOTE, NOTE, NOTE:
10214          * when adding emulation for some opcodes, remember to also add a dummy
10215          * rule to the burg files, because we need the arity information to be correct.
10216          */
10217 #ifndef MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
10218         mono_register_opcode_emulation (OP_LMUL, "__emul_lmul", "long long long", mono_llmult, TRUE);
10219         mono_register_opcode_emulation (OP_LDIV, "__emul_ldiv", "long long long", mono_lldiv, FALSE);
10220         mono_register_opcode_emulation (OP_LDIV_UN, "__emul_ldiv_un", "long long long", mono_lldiv_un, FALSE);
10221         mono_register_opcode_emulation (OP_LREM, "__emul_lrem", "long long long", mono_llrem, FALSE);
10222         mono_register_opcode_emulation (OP_LREM_UN, "__emul_lrem_un", "long long long", mono_llrem_un, FALSE);
10223         mono_register_opcode_emulation (OP_LMUL_OVF_UN, "__emul_lmul_ovf_un", "long long long", mono_llmult_ovf_un, FALSE);
10224         mono_register_opcode_emulation (OP_LMUL_OVF, "__emul_lmul_ovf", "long long long", mono_llmult_ovf, FALSE);
10225 #endif
10226
10227 #ifndef MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
10228         mono_register_opcode_emulation (OP_LSHL, "__emul_lshl", "long long int32", mono_lshl, TRUE);
10229         mono_register_opcode_emulation (OP_LSHR, "__emul_lshr", "long long int32", mono_lshr, TRUE);
10230         mono_register_opcode_emulation (OP_LSHR_UN, "__emul_lshr_un", "long long int32", mono_lshr_un, TRUE);
10231 #endif
10232
10233 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
10234         mono_register_opcode_emulation (CEE_DIV, "__emul_idiv", "int32 int32 int32", mono_idiv, TRUE);
10235         mono_register_opcode_emulation (CEE_DIV_UN, "__emul_idiv_un", "int32 int32 int32", mono_idiv_un, TRUE);
10236         mono_register_opcode_emulation (CEE_REM, "__emul_irem", "int32 int32 int32", mono_irem, TRUE);
10237         mono_register_opcode_emulation (CEE_REM_UN, "__emul_irem_un", "int32 int32 int32", mono_irem_un, TRUE);
10238 #endif
10239
10240 #ifdef MONO_ARCH_EMULATE_MUL_DIV
10241         mono_register_opcode_emulation (CEE_MUL_OVF, "__emul_imul_ovf", "int32 int32 int32", mono_imul_ovf, TRUE);
10242         mono_register_opcode_emulation (CEE_MUL_OVF_UN, "__emul_imul_ovf_un", "int32 int32 int32", mono_imul_ovf_un, TRUE);
10243         mono_register_opcode_emulation (CEE_MUL, "__emul_imul", "int32 int32 int32", mono_imul, TRUE);
10244         mono_register_opcode_emulation (OP_FDIV, "__emul_fdiv", "double double double", mono_fdiv, TRUE);
10245 #endif
10246
10247         mono_register_opcode_emulation (OP_FCONV_TO_U8, "__emul_fconv_to_u8", "ulong double", mono_fconv_u8, FALSE);
10248         mono_register_opcode_emulation (OP_FCONV_TO_U4, "__emul_fconv_to_u4", "uint32 double", mono_fconv_u4, FALSE);
10249         mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, "__emul_fconv_to_ovf_i8", "long double", mono_fconv_ovf_i8, FALSE);
10250         mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, "__emul_fconv_to_ovf_u8", "ulong double", mono_fconv_ovf_u8, FALSE);
10251
10252 #ifdef MONO_ARCH_EMULATE_FCONV_TO_I8
10253         mono_register_opcode_emulation (OP_FCONV_TO_I8, "__emul_fconv_to_i8", "long double", mono_fconv_i8, FALSE);
10254 #endif
10255 #ifdef MONO_ARCH_EMULATE_CONV_R8_UN
10256         mono_register_opcode_emulation (CEE_CONV_R_UN, "__emul_conv_r_un", "double int32", mono_conv_to_r8_un, FALSE);
10257 #endif
10258 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8
10259         mono_register_opcode_emulation (OP_LCONV_TO_R8, "__emul_lconv_to_r8", "double long", mono_lconv_to_r8, FALSE);
10260 #endif
10261 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R4
10262         mono_register_opcode_emulation (OP_LCONV_TO_R4, "__emul_lconv_to_r4", "float long", mono_lconv_to_r4, FALSE);
10263 #endif
10264 #ifdef MONO_ARCH_EMULATE_LCONV_TO_R8_UN
10265         mono_register_opcode_emulation (OP_LCONV_TO_R_UN, "__emul_lconv_to_r8_un", "double long", mono_lconv_to_r8_un, FALSE);
10266 #endif
10267 #ifdef MONO_ARCH_EMULATE_FREM
10268         mono_register_opcode_emulation (OP_FREM, "__emul_frem", "double double double", fmod, FALSE);
10269 #endif
10270
10271 #if SIZEOF_VOID_P == 4
10272         mono_register_opcode_emulation (OP_FCONV_TO_U, "__emul_fconv_to_u", "uint32 double", mono_fconv_u4, TRUE);
10273 #endif
10274
10275         /* other jit icalls */
10276         register_icall (mono_delegate_ctor, "mono_delegate_ctor", "void object object ptr", FALSE);
10277         register_icall (mono_class_static_field_address , "mono_class_static_field_address",
10278                                  "ptr ptr ptr", FALSE);
10279         register_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", "ptr ptr ptr ptr", FALSE);
10280         register_icall (mono_get_special_static_data, "mono_get_special_static_data", "ptr int", FALSE);
10281         register_icall (mono_ldstr, "mono_ldstr", "object ptr ptr int32", FALSE);
10282         register_icall (helper_stelem_ref, "helper_stelem_ref", "void ptr int32 object", FALSE);
10283         register_icall (helper_stelem_ref_check, "helper_stelem_ref_check", "void object object", FALSE);
10284         register_icall (mono_object_new, "mono_object_new", "object ptr ptr", FALSE);
10285         register_icall (mono_object_new_specific, "mono_object_new_specific", "object ptr", FALSE);
10286         register_icall (mono_array_new, "mono_array_new", "object ptr ptr int32", FALSE);
10287         register_icall (mono_array_new_specific, "mono_array_new_specific", "object ptr int32", FALSE);
10288         register_icall (mono_runtime_class_init, "mono_runtime_class_init", "void ptr", FALSE);
10289         register_icall (mono_ldftn, "mono_ldftn", "ptr ptr", FALSE);
10290         register_icall (mono_ldftn_nosync, "mono_ldftn_nosync", "ptr ptr", FALSE);
10291         register_icall (mono_ldvirtfn, "mono_ldvirtfn", "ptr object ptr", FALSE);
10292         register_icall (helper_compile_generic_method, "compile_generic_method", "ptr object ptr ptr", FALSE);
10293         register_icall (helper_ldstr, "helper_ldstr", "object ptr int", FALSE);
10294 #endif
10295
10296 #define JIT_RUNTIME_WORKS
10297 #ifdef JIT_RUNTIME_WORKS
10298         mono_install_runtime_cleanup ((MonoDomainFunc)mini_cleanup);
10299         mono_runtime_init (domain, mono_thread_start_cb, mono_thread_attach_cb);
10300 #endif
10301
10302         mono_thread_attach (domain);
10303         return domain;
10304 }
10305
10306 MonoJitStats mono_jit_stats = {0};
10307
10308 static void
10309 print_jit_stats (void)
10310 {
10311         if (mono_jit_stats.enabled) {
10312                 g_print ("Mono Jit statistics\n");
10313                 g_print ("Compiled methods:       %ld\n", mono_jit_stats.methods_compiled);
10314                 g_print ("Methods from AOT:       %ld\n", mono_jit_stats.methods_aot);
10315                 g_print ("Methods cache lookup:   %ld\n", mono_jit_stats.methods_lookups);
10316                 g_print ("Method trampolines:     %ld\n", mono_jit_stats.method_trampolines);
10317                 g_print ("Basic blocks:           %ld\n", mono_jit_stats.basic_blocks);
10318                 g_print ("Max basic blocks:       %ld\n", mono_jit_stats.max_basic_blocks);
10319                 g_print ("Allocated vars:         %ld\n", mono_jit_stats.allocate_var);
10320                 g_print ("Analyze stack repeat:   %ld\n", mono_jit_stats.analyze_stack_repeat);
10321                 g_print ("Compiled CIL code size: %ld\n", mono_jit_stats.cil_code_size);
10322                 g_print ("Native code size:       %ld\n", mono_jit_stats.native_code_size);
10323                 g_print ("Max code size ratio:    %.2f (%s::%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
10324                                 mono_jit_stats.max_ratio_method->klass->name, mono_jit_stats.max_ratio_method->name);
10325                 g_print ("Biggest method:         %ld (%s::%s)\n", mono_jit_stats.biggest_method_size,
10326                                 mono_jit_stats.biggest_method->klass->name, mono_jit_stats.biggest_method->name);
10327                 g_print ("Code reallocs:          %ld\n", mono_jit_stats.code_reallocs);
10328                 g_print ("Allocated code size:    %ld\n", mono_jit_stats.allocated_code_size);
10329                 g_print ("Inlineable methods:     %ld\n", mono_jit_stats.inlineable_methods);
10330                 g_print ("Inlined methods:        %ld\n", mono_jit_stats.inlined_methods);
10331
10332                 g_print ("\nCreated object count:   %ld\n", mono_stats.new_object_count);
10333                 g_print ("Initialized classes:    %ld\n", mono_stats.initialized_class_count);
10334                 g_print ("Used classes:           %ld\n", mono_stats.used_class_count);
10335                 g_print ("Static data size:       %ld\n", mono_stats.class_static_data_size);
10336                 g_print ("VTable data size:       %ld\n", mono_stats.class_vtable_size);
10337
10338                 g_print ("\nGeneric instances:      %ld\n", mono_stats.generic_instance_count);
10339                 g_print ("Initialized classes:    %ld\n", mono_stats.generic_class_count);
10340                 g_print ("Inflated methods:       %ld / %ld\n", mono_stats.inflated_method_count_2,
10341                          mono_stats.inflated_method_count);
10342                 g_print ("Inflated types:         %ld\n", mono_stats.inflated_type_count);
10343                 g_print ("Generics metadata size: %ld\n", mono_stats.generics_metadata_size);
10344
10345                 if (mono_use_security_manager) {
10346                         g_print ("\nDecl security check   : %ld\n", mono_jit_stats.cas_declsec_check);
10347                         g_print ("LinkDemand (user)     : %ld\n", mono_jit_stats.cas_linkdemand);
10348                         g_print ("LinkDemand (icall)    : %ld\n", mono_jit_stats.cas_linkdemand_icall);
10349                         g_print ("LinkDemand (pinvoke)  : %ld\n", mono_jit_stats.cas_linkdemand_pinvoke);
10350                         g_print ("LinkDemand (aptc)     : %ld\n", mono_jit_stats.cas_linkdemand_aptc);
10351                         g_print ("Demand (code gen)     : %ld\n", mono_jit_stats.cas_demand_generation);
10352                 }
10353         }
10354 }
10355
10356 void
10357 mini_cleanup (MonoDomain *domain)
10358 {
10359 #ifdef HAVE_LINUX_RTC_H
10360         if (rtc_fd >= 0)
10361                 enable_rtc_timer (FALSE);
10362 #endif
10363
10364         /*
10365          * mono_runtime_cleanup() and mono_domain_finalize () need to
10366          * be called early since they need the execution engine still
10367          * fully working (mono_domain_finalize may invoke managed finalizers
10368          * and mono_runtime_cleanup will wait for other threads to finish).
10369          */
10370         mono_domain_finalize (domain, 2000);
10371
10372         mono_runtime_cleanup (domain);
10373
10374         mono_profiler_shutdown ();
10375
10376         mono_debug_cleanup ();
10377
10378         mono_icall_cleanup ();
10379
10380 #ifdef PLATFORM_WIN32
10381         win32_seh_cleanup();
10382 #endif
10383
10384         mono_domain_free (domain, TRUE);
10385
10386         mono_code_manager_destroy (global_codeman);
10387         g_hash_table_destroy (jit_icall_name_hash);
10388         if (class_init_hash_addr)
10389                 g_hash_table_destroy (class_init_hash_addr);
10390
10391         print_jit_stats ();
10392 }
10393
10394 void
10395 mono_set_defaults (int verbose_level, guint32 opts)
10396 {
10397         mini_verbose = verbose_level;
10398         default_opt = opts;
10399 }
10400
10401 static void
10402 mono_precompile_assembly (MonoAssembly *ass, void *user_data)
10403 {
10404         GHashTable *assemblies = (GHashTable*)user_data;
10405         MonoImage *image = mono_assembly_get_image (ass);
10406         MonoMethod *method, *invoke;
10407         int i, count = 0;
10408
10409         if (g_hash_table_lookup (assemblies, ass))
10410                 return;
10411
10412         g_hash_table_insert (assemblies, ass, ass);
10413
10414         if (mini_verbose > 0)
10415                 printf ("PRECOMPILE: %s.\n", mono_image_get_filename (image));
10416
10417         for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_METHOD); ++i) {
10418                 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
10419                 if (method->flags & METHOD_ATTRIBUTE_ABSTRACT)
10420                         continue;
10421
10422                 count++;
10423                 if (mini_verbose > 1) {
10424                         char * desc = mono_method_full_name (method, TRUE);
10425                         g_print ("Compiling %d %s\n", count, desc);
10426                         g_free (desc);
10427                 }
10428                 mono_compile_method (method);
10429                 if (strcmp (method->name, "Finalize") == 0) {
10430                         invoke = mono_marshal_get_runtime_invoke (method);
10431                         mono_compile_method (invoke);
10432                 }
10433                 if (method->klass->marshalbyref && mono_method_signature (method)->hasthis) {
10434                         invoke = mono_marshal_get_remoting_invoke_with_check (method);
10435                         mono_compile_method (invoke);
10436                 }
10437         }
10438
10439         /* Load and precompile referenced assemblies as well */
10440         for (i = 0; i < mono_image_get_table_rows (image, MONO_TABLE_ASSEMBLYREF); ++i) {
10441                 mono_assembly_load_reference (image, i);
10442                 if (image->references [i])
10443                         mono_precompile_assembly (image->references [i], assemblies);
10444         }
10445 }
10446
10447 void mono_precompile_assemblies ()
10448 {
10449         GHashTable *assemblies = g_hash_table_new (NULL, NULL);
10450
10451         mono_assembly_foreach ((GFunc)mono_precompile_assembly, assemblies);
10452
10453         g_hash_table_destroy (assemblies);
10454 }