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