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
  15 #include <mono/metadata/assembly.h>
  16 #include <mono/metadata/loader.h>
  17 #include <mono/metadata/cil-coff.h>
  18 #include <mono/metadata/tabledefs.h>
  19 #include <mono/metadata/class.h>
  20 #include <mono/metadata/object.h>
  21 #include <mono/metadata/exception.h>
  22 #include <mono/metadata/opcodes.h>
  23 #include <mono/metadata/mono-endian.h>
  24 #include <mono/metadata/tokentype.h>
  25 #include <mono/metadata/tabledefs.h>
  26 #include <mono/metadata/threads.h>
  27 #include <mono/metadata/marshal.h>
  28 #include <mono/metadata/socket-io.h>
  29 #include <mono/metadata/appdomain.h>
  30 #include <mono/metadata/debug-helpers.h>
  31 #include <mono/io-layer/io-layer.h>
  32 #include "mono/metadata/profiler.h"
  33 #include <mono/metadata/profiler-private.h>
  34 #include <mono/metadata/mono-config.h>
  35 #include <mono/metadata/environment.h>
  36 #include <mono/metadata/mono-debug.h>
  37 #include <mono/metadata/mono-debug-debugger.h>
  38
  39 #include "mini.h"
  40 #include <string.h>
  41 #include <ctype.h>
  42 #include "inssel.h"
  43
  44 #include "jit-icalls.c"
  45
  46 #define MONO_CHECK_THIS(ins) (cfg->method->signature->hasthis && (ins)->ssa_op == MONO_SSA_LOAD && (ins)->inst_left->inst_c0 == 0)
  47
  48 gboolean  mono_arch_handle_exception (struct sigcontext *ctx, gpointer obj, gboolean test_only);
  49 static gpointer mono_jit_compile_method (MonoMethod *method);
  50
  51 static void handle_stobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, MonoInst *src,
  52                           const unsigned char *ip, MonoClass *klass, gboolean to_end, gboolean native);
  53
  54 static int mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
  55                    int locals_offset, MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
  56                    guint inline_offset, gboolean is_virtual_call);
  57
  58 extern guint8 mono_burg_arity [];
  59 /* helper methods signature */
  60 static MonoMethodSignature *helper_sig_long_long_long = NULL;
  61 static MonoMethodSignature *helper_sig_long_long_int = NULL;
  62 static MonoMethodSignature *helper_sig_newarr = NULL;
  63 static MonoMethodSignature *helper_sig_newarr_specific = NULL;
  64 static MonoMethodSignature *helper_sig_ldstr = NULL;
  65 static MonoMethodSignature *helper_sig_domain_get = NULL;
  66 static MonoMethodSignature *helper_sig_object_new = NULL;
  67 static MonoMethodSignature *helper_sig_object_new_specific = NULL;
  68 static MonoMethodSignature *helper_sig_compile = NULL;
  69 static MonoMethodSignature *helper_sig_compile_virt = NULL;
  70 static MonoMethodSignature *helper_sig_obj_ptr = NULL;
  71 static MonoMethodSignature *helper_sig_ptr_void = NULL;
  72 static MonoMethodSignature *helper_sig_void_ptr = NULL;
  73 static MonoMethodSignature *helper_sig_void_obj = NULL;
  74 static MonoMethodSignature *helper_sig_void_ptr_ptr = NULL;
  75 static MonoMethodSignature *helper_sig_void_ptr_ptr_ptr = NULL;
  76 static MonoMethodSignature *helper_sig_ptr_ptr_ptr = NULL;
  77 static MonoMethodSignature *helper_sig_ptr_obj = NULL;
  78 static MonoMethodSignature *helper_sig_ptr_int = NULL;
  79 static MonoMethodSignature *helper_sig_initobj = NULL;
  80 static MonoMethodSignature *helper_sig_memcpy = NULL;
  81 static MonoMethodSignature *helper_sig_memset = NULL;
  82 static MonoMethodSignature *helper_sig_ulong_double = NULL;
  83 static MonoMethodSignature *helper_sig_long_double = NULL;
  84 static MonoMethodSignature *helper_sig_uint_double = NULL;
  85 static MonoMethodSignature *helper_sig_int_double = NULL;
  86 static MonoMethodSignature *helper_sig_stelem_ref = NULL;
  87
  88 static guint32 default_opt = MONO_OPT_PEEPHOLE;
  89
  90 guint32 mono_jit_tls_id = 0;
  91 gboolean mono_jit_trace_calls = FALSE;
  92 gboolean mono_break_on_exc = FALSE;
  93 gboolean mono_compile_aot = FALSE;
  94 gboolean mono_trace_coverage = FALSE;
  95 gboolean mono_jit_profile = FALSE;
  96 MonoDebugFormat mono_debug_format = MONO_DEBUG_FORMAT_NONE;
  97
  98 CRITICAL_SECTION *metadata_section = NULL;
  99
 100 static int mini_verbose = 0;
 101
 102 #ifdef MONO_USE_EXC_TABLES
 103 static gboolean
 104 mono_type_blittable (MonoType *type)
 105 {
 106         if (type->byref)
 107                 return FALSE;
 108
 109         switch (type->type){
 110         case MONO_TYPE_VOID:
 111         case MONO_TYPE_I1:
 112         case MONO_TYPE_U1:
 113         case MONO_TYPE_I2:
 114         case MONO_TYPE_U2:
 115         case MONO_TYPE_I4:
 116         case MONO_TYPE_U4:
 117         case MONO_TYPE_I8:
 118         case MONO_TYPE_U8:
 119         case MONO_TYPE_R4:
 120         case MONO_TYPE_R8:
 121         case MONO_TYPE_I:
 122         case MONO_TYPE_U:
 123         case MONO_TYPE_OBJECT:
 124                 return TRUE;
 125         case MONO_TYPE_VALUETYPE:
 126         case MONO_TYPE_CLASS:
 127                 return type->data.klass->blittable;
 128                 break;
 129         default:
 130                 break;
 131         }
 132
 133         return FALSE;
 134 }
 135
 136 gboolean
 137 mono_method_blittable (MonoMethod *method)
 138 {
 139         MonoMethodSignature *sig;
 140         int i;
 141
 142         if (!method->addr)
 143                 return FALSE;
 144
 145         if (!mono_arch_has_unwind_info (method->addr)) {
 146                 return FALSE;
 147         }
 148
 149         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
 150                 return TRUE;
 151
 152         sig = method->signature;
 153
 154         if (!mono_type_blittable (sig->ret))
 155                 return FALSE;
 156
 157         for (i = 0; i < sig->param_count; i++)
 158                 if (!mono_type_blittable (sig->params [i]))
 159                         return FALSE;
 160
 161         return TRUE;
 162 }
 163 #endif
 164
 165 /* debug function */
 166 static void
 167 print_method_from_ip (void *ip)
 168 {
 169         MonoJitInfo *ji;
 170         char *method;
 171
 172         ji = mono_jit_info_table_find (mono_domain_get (), ip);
 173         if (!ji) {
 174                 g_print ("No method at %p\n", ip);
 175                 return;
 176         }
 177         method = mono_method_full_name (ji->method, TRUE);
 178         g_print ("IP at offset 0x%x of method %s (%p %p)\n", (char*)ip - (char*)ji->code_start, method, ji->code_start, (char*)ji->code_start + ji->code_size);
 179         g_free (method);
 180
 181 }
 182
 183 #define MONO_INIT_VARINFO(vi,id) do { \
 184         (vi)->range.first_use.pos.bid = 0xffff; \
 185         (vi)->reg = -1; \
 186         (vi)->idx = (id); \
 187 } while (0)
 188
 189 /*
 190  * Basic blocks have two numeric identifiers:
 191  * dfn: Depth First Number
 192  * block_num: unique ID assigned at bblock creation
 193  */
 194 #define NEW_BBLOCK(cfg) (mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoBasicBlock)))
 195 #define ADD_BBLOCK(cfg,bbhash,b) do {   \
 196                 g_hash_table_insert (bbhash, (b)->cil_code, (b));       \
 197                 (b)->block_num = cfg->num_bblocks++;    \
 198                 (b)->real_offset = real_offset; \
 199         } while (0)
 200
 201 #define GET_BBLOCK(cfg,bbhash,tblock,ip) do {   \
 202                 (tblock) = g_hash_table_lookup (bbhash, (ip));  \
 203                 if (!(tblock)) {        \
 204                         if ((ip) >= end || (ip) < header->code) goto unverified; \
 205                         (tblock) = NEW_BBLOCK (cfg);    \
 206                         (tblock)->cil_code = (ip);      \
 207                         ADD_BBLOCK (cfg, (bbhash), (tblock));   \
 208                 }       \
 209                 (tblock)->real_offset = real_offset; \
 210         } while (0)
 211
 212 #define CHECK_BBLOCK(target,ip,tblock) do {     \
 213                 if ((target) < (ip) && !(tblock)->code) {       \
 214                         bb_recheck = g_list_prepend (bb_recheck, (tblock));     \
 215                         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);   \
 216                 }       \
 217         } while (0)
 218
 219 #define NEW_ICONST(cfg,dest,val) do {   \
 220                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 221                 (dest)->opcode = OP_ICONST;     \
 222                 (dest)->inst_c0 = (val);        \
 223                 (dest)->type = STACK_I4;        \
 224         } while (0)
 225
 226 /* FIXME: have a different definition of NEW_PCONST for 64 bit systems */
 227 #define NEW_PCONST(cfg,dest,val) do {   \
 228                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 229                 (dest)->opcode = OP_ICONST;     \
 230                 (dest)->inst_p0 = (val);        \
 231                 (dest)->type = STACK_PTR;       \
 232         } while (0)
 233
 234 #define NEW_CLASSCONST(cfg,dest,val) do {       \
 235                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 236                 (dest)->opcode = mono_compile_aot ? OP_AOTCONST : OP_ICONST;    \
 237                 (dest)->inst_p0 = (val);        \
 238                 (dest)->inst_i1 = (gpointer)MONO_PATCH_INFO_CLASS; \
 239                 (dest)->type = STACK_PTR;       \
 240         } while (0)
 241
 242 #define NEW_IMAGECONST(cfg,dest,val) do {       \
 243                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 244                 (dest)->opcode = mono_compile_aot ? OP_AOTCONST : OP_ICONST;    \
 245                 (dest)->inst_p0 = (val);        \
 246                 (dest)->inst_i1 = (gpointer)MONO_PATCH_INFO_IMAGE; \
 247                 (dest)->type = STACK_PTR;       \
 248         } while (0)
 249
 250 #define NEW_FIELDCONST(cfg,dest,field) do {     \
 251                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 252                 (dest)->opcode = mono_compile_aot ? OP_AOTCONST : OP_ICONST;    \
 253                 (dest)->inst_p0 = (field);      \
 254                 (dest)->inst_i1 = (gpointer)MONO_PATCH_INFO_FIELD; \
 255                 (dest)->type = STACK_PTR;       \
 256         } while (0)
 257
 258 #define NEW_METHODCONST(cfg,dest,val) do {      \
 259                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 260                 (dest)->opcode = mono_compile_aot ? OP_AOTCONST : OP_ICONST;    \
 261                 (dest)->inst_p0 = (val);        \
 262                 (dest)->inst_i1 = (gpointer)MONO_PATCH_INFO_METHODCONST; \
 263                 (dest)->type = STACK_PTR;       \
 264         } while (0)
 265
 266 #define NEW_DOMAINCONST(cfg,dest) do { \
 267                if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot) { \
 268                        NEW_TEMPLOAD (cfg, dest, mono_get_domainvar (cfg)->inst_c0); \
 269                } else { \
 270                        NEW_PCONST (cfg, dest, (cfg)->domain); \
 271                } \
 272         } while (0)
 273
 274 #define GET_VARINFO_INST(cfg,num) ((cfg)->varinfo [(num)]->inst)
 275
 276 #define NEW_ARGLOAD(cfg,dest,num) do {  \
 277                 if (arg_array [(num)]->opcode == OP_ICONST) (dest) = arg_array [(num)]; else { \
 278                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 279                 (dest)->ssa_op = MONO_SSA_LOAD; \
 280                 (dest)->inst_i0 = arg_array [(num)];    \
 281                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 282                 type_to_eval_stack_type (param_types [(num)], (dest));  \
 283                 (dest)->klass = (dest)->inst_i0->klass; \
 284         }} while (0)
 285
 286 #define NEW_LOCLOAD(cfg,dest,num) do {  \
 287                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 288                 (dest)->ssa_op = MONO_SSA_LOAD; \
 289                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 290                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 291                 type_to_eval_stack_type (header->locals [(num)], (dest));       \
 292                 (dest)->klass = (dest)->inst_i0->klass; \
 293         } while (0)
 294
 295 #define NEW_LOCLOADA(cfg,dest,num) do { \
 296                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 297                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 298                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 299                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 300                 (dest)->opcode = OP_LDADDR;     \
 301                 (dest)->type = STACK_MP;        \
 302                 (dest)->klass = (dest)->inst_i0->klass; \
 303                 (cfg)->disable_ssa = TRUE; \
 304         } while (0)
 305
 306 #define NEW_RETLOADA(cfg,dest) do {     \
 307                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 308                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 309                 (dest)->inst_i0 = (cfg)->ret;   \
 310                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 311                 (dest)->opcode = CEE_LDIND_I;   \
 312                 (dest)->type = STACK_MP;        \
 313                 (dest)->klass = (dest)->inst_i0->klass; \
 314                 (cfg)->disable_ssa = TRUE; \
 315         } while (0)
 316
 317 #define NEW_ARGLOADA(cfg,dest,num) do { \
 318                 if (arg_array [(num)]->opcode == OP_ICONST) goto inline_failure; \
 319                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 320                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 321                 (dest)->inst_i0 = arg_array [(num)];    \
 322                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 323                 (dest)->opcode = OP_LDADDR;     \
 324                 (dest)->type = STACK_MP;        \
 325                 (dest)->klass = (dest)->inst_i0->klass; \
 326                 (cfg)->disable_ssa = TRUE; \
 327         } while (0)
 328
 329 #define NEW_TEMPLOAD(cfg,dest,num) do { \
 330                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 331                 (dest)->ssa_op = MONO_SSA_LOAD; \
 332                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 333                 (dest)->opcode = mono_type_to_ldind ((dest)->inst_i0->inst_vtype);      \
 334                 type_to_eval_stack_type ((dest)->inst_i0->inst_vtype, (dest));  \
 335                 (dest)->klass = (dest)->inst_i0->klass; \
 336         } while (0)
 337
 338 #define NEW_TEMPLOADA(cfg,dest,num) do {        \
 339                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 340                 (dest)->ssa_op = MONO_SSA_MAYBE_LOAD;   \
 341                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 342                 (dest)->inst_i0->flags |= MONO_INST_INDIRECT;   \
 343                 (dest)->opcode = OP_LDADDR;     \
 344                 (dest)->type = STACK_MP;        \
 345                 (dest)->klass = (dest)->inst_i0->klass; \
 346                 (cfg)->disable_ssa = TRUE; \
 347         } while (0)
 348
 349
 350 #define NEW_INDLOAD(cfg,dest,addr,vtype) do {   \
 351                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 352                 (dest)->inst_left = addr;       \
 353                 (dest)->opcode = mono_type_to_ldind (vtype);    \
 354                 type_to_eval_stack_type (vtype, (dest));        \
 355                 /* FIXME: (dest)->klass = (dest)->inst_i0->klass;*/     \
 356         } while (0)
 357
 358 #define NEW_INDSTORE(cfg,dest,addr,value,vtype) do {    \
 359                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 360                 (dest)->inst_i0 = addr; \
 361                 (dest)->opcode = mono_type_to_stind (vtype);    \
 362                 (dest)->inst_i1 = (value);      \
 363                 /* FIXME: (dest)->klass = (dest)->inst_i0->klass;*/     \
 364         } while (0)
 365
 366 #define NEW_TEMPSTORE(cfg,dest,num,inst) do {   \
 367                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 368                 (dest)->ssa_op = MONO_SSA_STORE;        \
 369                 (dest)->inst_i0 = (cfg)->varinfo [(num)];       \
 370                 (dest)->opcode = mono_type_to_stind ((dest)->inst_i0->inst_vtype);      \
 371                 (dest)->inst_i1 = (inst);       \
 372                 (dest)->klass = (dest)->inst_i0->klass; \
 373         } while (0)
 374
 375 #define NEW_LOCSTORE(cfg,dest,num,inst) do {    \
 376                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 377                 (dest)->opcode = mono_type_to_stind (header->locals [(num)]);   \
 378                 (dest)->ssa_op = MONO_SSA_STORE;        \
 379                 (dest)->inst_i0 = (cfg)->varinfo [locals_offset + (num)];       \
 380                 (dest)->inst_i1 = (inst);       \
 381                 (dest)->klass = (dest)->inst_i0->klass; \
 382         } while (0)
 383
 384 #define NEW_ARGSTORE(cfg,dest,num,inst) do {    \
 385                 if (arg_array [(num)]->opcode == OP_ICONST) goto inline_failure; \
 386                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 387                 (dest)->opcode = mono_type_to_stind (param_types [(num)]);      \
 388                 (dest)->ssa_op = MONO_SSA_STORE;        \
 389                 (dest)->inst_i0 = arg_array [(num)];    \
 390                 (dest)->inst_i1 = (inst);       \
 391                 (dest)->klass = (dest)->inst_i0->klass; \
 392         } while (0)
 393
 394 #define ADD_BINOP(op) do {      \
 395                 MONO_INST_NEW (cfg, ins, (op)); \
 396                 ins->cil_code = ip;     \
 397                 sp -= 2;        \
 398                 ins->inst_i0 = sp [0];  \
 399                 ins->inst_i1 = sp [1];  \
 400                 *sp++ = ins;    \
 401                 type_from_op (ins);     \
 402                 CHECK_TYPE (ins);       \
 403         } while (0)
 404
 405 #define ADD_UNOP(op) do {       \
 406                 MONO_INST_NEW (cfg, ins, (op)); \
 407                 ins->cil_code = ip;     \
 408                 sp--;   \
 409                 ins->inst_i0 = sp [0];  \
 410                 *sp++ = ins;    \
 411                 type_from_op (ins);     \
 412                 CHECK_TYPE (ins);       \
 413         } while (0)
 414
 415 #define ADD_BINCOND(next_block) do {    \
 416                 MonoInst *cmp;  \
 417                 MONO_INST_NEW(cfg, cmp, OP_COMPARE);    \
 418                 sp -= 2;                \
 419                 cmp->inst_i0 = sp [0];  \
 420                 cmp->inst_i1 = sp [1];  \
 421                 cmp->cil_code = ins->cil_code;  \
 422                 type_from_op (cmp);     \
 423                 CHECK_TYPE (cmp);       \
 424                 ins->inst_i0 = cmp;     \
 425                 MONO_ADD_INS (bblock, ins);     \
 426                 ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2);      \
 427                 GET_BBLOCK (cfg, bbhash, tblock, target);               \
 428                 link_bblock (cfg, bblock, tblock);      \
 429                 ins->inst_true_bb = tblock;     \
 430                 CHECK_BBLOCK (target, ip, tblock);      \
 431                 if ((next_block)) {     \
 432                         link_bblock (cfg, bblock, (next_block));        \
 433                         ins->inst_false_bb = (next_block);      \
 434                         start_new_bblock = 1;   \
 435                 } else {        \
 436                         GET_BBLOCK (cfg, bbhash, tblock, ip);           \
 437                         link_bblock (cfg, bblock, tblock);      \
 438                         ins->inst_false_bb = tblock;    \
 439                         start_new_bblock = 2;   \
 440                 }       \
 441         } while (0)
 442
 443 /* FIXME: handle float, long ... */
 444 #define ADD_UNCOND(istrue) do { \
 445                 MonoInst *cmp;  \
 446                 MONO_INST_NEW(cfg, cmp, OP_COMPARE);    \
 447                 sp--;           \
 448                 cmp->inst_i0 = sp [0];  \
 449                 switch (cmp->inst_i0->type) { \
 450                 case STACK_I8: \
 451                         cmp->inst_i1 = zero_int64; break; \
 452                 case STACK_R8: \
 453                         cmp->inst_i1 = zero_r8; break; \
 454                 case STACK_PTR: \
 455                 case STACK_MP: \
 456                         cmp->inst_i1 = zero_ptr; break; \
 457                 case STACK_OBJ: \
 458                         cmp->inst_i1 = zero_obj; break; \
 459                 default: \
 460                         cmp->inst_i1 = zero_int32;  \
 461                 }  \
 462                 cmp->cil_code = ins->cil_code;  \
 463                 type_from_op (cmp);     \
 464                 CHECK_TYPE (cmp);       \
 465                 ins->inst_i0 = cmp;     \
 466                 ins->opcode = (istrue)? CEE_BNE_UN: CEE_BEQ;    \
 467                 MONO_ADD_INS (bblock, ins);     \
 468                 ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2);      \
 469                 GET_BBLOCK (cfg, bbhash, tblock, target);               \
 470                 link_bblock (cfg, bblock, tblock);      \
 471                 ins->inst_true_bb = tblock;     \
 472                 CHECK_BBLOCK (target, ip, tblock);      \
 473                 GET_BBLOCK (cfg, bbhash, tblock, ip);           \
 474                 link_bblock (cfg, bblock, tblock);      \
 475                 ins->inst_false_bb = tblock;    \
 476                 start_new_bblock = 2;   \
 477         } while (0)
 478
 479 #define NEW_LDELEMA(cfg,dest,sp,k) do { \
 480                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 481                 (dest)->opcode = CEE_LDELEMA;   \
 482                 (dest)->inst_left = (sp) [0];   \
 483                 (dest)->inst_right = (sp) [1];  \
 484                 (dest)->type = STACK_MP;        \
 485                 (dest)->klass = (k);    \
 486         } while (0)
 487
 488 #define NEW_GROUP(cfg,dest,el1,el2) do {        \
 489                 (dest) = mono_mempool_alloc0 ((cfg)->mempool, sizeof (MonoInst));       \
 490                 (dest)->opcode = OP_GROUP;      \
 491                 (dest)->inst_left = (el1);      \
 492                 (dest)->inst_right = (el2);     \
 493         } while (0)
 494
 495 static GHashTable *coverage_hash = NULL;
 496
 497 MonoCoverageInfo *
 498 mono_allocate_coverage_info (MonoMethod *method, int size)
 499 {
 500         MonoCoverageInfo *res;
 501
 502         if (!coverage_hash)
 503                 coverage_hash = g_hash_table_new (NULL, NULL);
 504
 505         res = g_malloc0 (sizeof (MonoCoverageInfo) + sizeof (int) * size * 2);
 506
 507         res->entries = size;
 508
 509         g_hash_table_insert (coverage_hash, method, res);
 510
 511         return res;
 512 }
 513
 514 MonoCoverageInfo *
 515 mono_get_coverage_info (MonoMethod *method)
 516 {
 517         if (!coverage_hash)
 518                 return NULL;
 519
 520         return g_hash_table_lookup (coverage_hash, method);
 521 }
 522
 523 #if 0
 524 static gint
 525 compare_bblock (gconstpointer a, gconstpointer b)
 526 {
 527         const MonoBasicBlock *b1 = a;
 528         const MonoBasicBlock *b2 = b;
 529
 530         return b2->cil_code - b1->cil_code;
 531 }
 532 #endif
 533
 534 /* *
 535  * link_bblock: Links two basic blocks
 536  *
 537  * links two basic blocks in the control flow graph, the 'from'
 538  * argument is the starting block and the 'to' argument is the block
 539  * the control flow ends to after 'from'.
 540  */
 541 static void
 542 link_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
 543 {
 544         MonoBasicBlock **newa;
 545         int i, found;
 546
 547 #if 0
 548         if (from->cil_code) {
 549                 if (to->cil_code)
 550                         g_print ("edge from IL%04x to IL_%04x\n", from->cil_code - cfg->cil_code, to->cil_code - cfg->cil_code);
 551                 else
 552                         g_print ("edge from IL%04x to exit\n", from->cil_code - cfg->cil_code);
 553         } else {
 554                 if (to->cil_code)
 555                         g_print ("edge from entry to IL_%04x\n", to->cil_code - cfg->cil_code);
 556                 else
 557                         g_print ("edge from entry to exit\n");
 558         }
 559 #endif
 560         found = FALSE;
 561         for (i = 0; i < from->out_count; ++i) {
 562                 if (to == from->out_bb [i]) {
 563                         found = TRUE;
 564                         break;
 565                 }
 566         }
 567         if (!found) {
 568                 newa = mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (from->out_count + 1));
 569                 for (i = 0; i < from->out_count; ++i) {
 570                         newa [i] = from->out_bb [i];
 571                 }
 572                 newa [i] = to;
 573                 from->out_count++;
 574                 from->out_bb = newa;
 575         }
 576
 577         found = FALSE;
 578         for (i = 0; i < to->in_count; ++i) {
 579                 if (from == to->in_bb [i]) {
 580                         found = TRUE;
 581                         break;
 582                 }
 583         }
 584         if (!found) {
 585                 newa = mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (to->in_count + 1));
 586                 for (i = 0; i < to->in_count; ++i) {
 587                         newa [i] = to->in_bb [i];
 588                 }
 589                 newa [i] = from;
 590                 to->in_count++;
 591                 to->in_bb = newa;
 592         }
 593 }
 594
 595 /*
 596  * We mark each basic block with a region ID. We use that to avoid BB
 597  * optimizations when blocks are in different regions.
 598  */
 599 static int
 600 mono_find_block_region (MonoCompile *cfg, int offset, int *filter_lengths)
 601 {
 602         MonoMethod *method = cfg->method;
 603         MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
 604         MonoExceptionClause *clause;
 605         int i;
 606
 607         /* first search for handlers and filters */
 608         for (i = 0; i < header->num_clauses; ++i) {
 609                 clause = &header->clauses [i];
 610                 if ((clause->flags & MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->token_or_filter) &&
 611                     (offset < (clause->token_or_filter + filter_lengths [i])))
 612                         return (i << 8) | 128 | clause->flags;
 613
 614                 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
 615                         return (i << 8) | 64 | clause->flags;
 616                 }
 617         }
 618
 619         /* search the try blocks */
 620         for (i = 0; i < header->num_clauses; ++i) {
 621                 clause = &header->clauses [i];
 622                 if (MONO_OFFSET_IN_CLAUSE (clause, offset))
 623                         return (i << 8) | clause->flags;
 624         }
 625
 626         return -1;
 627 }
 628
 629 static GList*
 630 mono_find_final_block (MonoCompile *cfg, unsigned char *ip, unsigned char *target, int type)
 631 {
 632         MonoMethod *method = cfg->method;
 633         MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
 634         MonoExceptionClause *clause;
 635         MonoBasicBlock *handler;
 636         int i;
 637         GList *res = NULL;
 638
 639         for (i = 0; i < header->num_clauses; ++i) {
 640                 clause = &header->clauses [i];
 641                 if (MONO_OFFSET_IN_CLAUSE (clause, (ip - header->code)) &&
 642                     (!MONO_OFFSET_IN_CLAUSE (clause, (target - header->code)))) {
 643                         if (clause->flags == type) {
 644                                 handler = g_hash_table_lookup (cfg->bb_hash, header->code + clause->handler_offset);
 645                                 g_assert (handler);
 646                                 res = g_list_append (res, handler);
 647                         }
 648                 }
 649         }
 650         return res;
 651 }
 652
 653
 654 static void
 655 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
 656 {
 657         int i;
 658
 659         array [*dfn] = start;
 660         /*g_print ("visit %d at %p\n", *dfn, start->cil_code);*/
 661         for (i = 0; i < start->out_count; ++i) {
 662                 if (start->out_bb [i]->dfn)
 663                         continue;
 664                 (*dfn)++;
 665                 start->out_bb [i]->dfn = *dfn;
 666                 start->out_bb [i]->df_parent = start;
 667                 array [*dfn] = start->out_bb [i];
 668                 df_visit (start->out_bb [i], dfn, array);
 669         }
 670 }
 671
 672 typedef struct {
 673         const guchar *code;
 674         MonoBasicBlock *best;
 675 } PrevStruct;
 676
 677 static void
 678 previous_foreach (gconstpointer key, gpointer val, gpointer data)
 679 {
 680         PrevStruct *p = data;
 681         MonoBasicBlock *bb = val;
 682         //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,
 683         //bb->method == p->best->method, bb->cil_code < p->code, bb->cil_code > p->best->cil_code);
 684
 685         if (bb->cil_code && bb->cil_code < p->code && bb->cil_code > p->best->cil_code)
 686                 p->best = bb;
 687 }
 688
 689 static MonoBasicBlock*
 690 find_previous (GHashTable *bb_hash, MonoBasicBlock *start, const guchar *code) {
 691         PrevStruct p;
 692
 693         p.code = code;
 694         p.best = start;
 695
 696         g_hash_table_foreach (bb_hash, (GHFunc)previous_foreach, &p);
 697         return p.best;
 698 }
 699
 700 static void
 701 split_bblock (MonoCompile *cfg, MonoBasicBlock *first, MonoBasicBlock *second) {
 702         int i, j;
 703         MonoInst *inst;
 704         MonoBasicBlock *bb;
 705
 706         if (second->code)
 707                 return;
 708
 709         /*
 710          * FIXME: take into account all the details:
 711          * second may have been the target of more than one bblock
 712          */
 713         second->out_count = first->out_count;
 714         second->out_bb = first->out_bb;
 715
 716         for (i = 0; i < first->out_count; ++i) {
 717                 bb = first->out_bb [i];
 718                 for (j = 0; j < bb->in_count; ++j) {
 719                         if (bb->in_bb [j] == first)
 720                                 bb->in_bb [j] = second;
 721                 }
 722         }
 723
 724         first->out_count = 0;
 725         first->out_bb = NULL;
 726         link_bblock (cfg, first, second);
 727
 728         second->last_ins = first->last_ins;
 729
 730         /*g_print ("start search at %p for %p\n", first->cil_code, second->cil_code);*/
 731         for (inst = first->code; inst && inst->next; inst = inst->next) {
 732                 /*char *code = mono_disasm_code_one (NULL, cfg->method, inst->next->cil_code, NULL);
 733                 g_print ("found %p: %s", inst->next->cil_code, code);
 734                 g_free (code);*/
 735                 if (inst->cil_code < second->cil_code && inst->next->cil_code >= second->cil_code) {
 736                         second->code = inst->next;
 737                         inst->next = NULL;
 738                         first->last_ins = inst;
 739                         second->next_bb = first->next_bb;
 740                         first->next_bb = second;
 741                         return;
 742                 }
 743         }
 744         if (!second->code) {
 745                 g_warning ("bblock split failed in %s::%s\n", cfg->method->klass->name, cfg->method->name);
 746                 //G_BREAKPOINT ();
 747         }
 748 }
 749
 750 guint
 751 mono_type_to_ldind (MonoType *type)
 752 {
 753         int t = type->type;
 754
 755         if (type->byref)
 756                 return CEE_LDIND_I;
 757
 758 handle_enum:
 759         switch (t) {
 760         case MONO_TYPE_I1:
 761                 return CEE_LDIND_I1;
 762         case MONO_TYPE_U1:
 763         case MONO_TYPE_BOOLEAN:
 764                 return CEE_LDIND_U1;
 765         case MONO_TYPE_I2:
 766                 return CEE_LDIND_I2;
 767         case MONO_TYPE_U2:
 768         case MONO_TYPE_CHAR:
 769                 return CEE_LDIND_U2;
 770         case MONO_TYPE_I4:
 771                 return CEE_LDIND_I4;
 772         case MONO_TYPE_U4:
 773                 return CEE_LDIND_U4;
 774         case MONO_TYPE_I:
 775         case MONO_TYPE_U:
 776         case MONO_TYPE_PTR:
 777         case MONO_TYPE_FNPTR:
 778                 return CEE_LDIND_I;
 779         case MONO_TYPE_CLASS:
 780         case MONO_TYPE_STRING:
 781         case MONO_TYPE_OBJECT:
 782         case MONO_TYPE_SZARRAY:
 783         case MONO_TYPE_ARRAY:
 784                 return CEE_LDIND_REF;
 785         case MONO_TYPE_I8:
 786         case MONO_TYPE_U8:
 787                 return CEE_LDIND_I8;
 788         case MONO_TYPE_R4:
 789                 return CEE_LDIND_R4;
 790         case MONO_TYPE_R8:
 791                 return CEE_LDIND_R8;
 792         case MONO_TYPE_VALUETYPE:
 793                 if (type->data.klass->enumtype) {
 794                         t = type->data.klass->enum_basetype->type;
 795                         goto handle_enum;
 796                 }
 797                 return CEE_LDOBJ;
 798         default:
 799                 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
 800         }
 801         return -1;
 802 }
 803
 804 guint
 805 mono_type_to_stind (MonoType *type)
 806 {
 807         int t = type->type;
 808
 809         if (type->byref)
 810                 return CEE_STIND_I;
 811
 812 handle_enum:
 813         switch (t) {
 814         case MONO_TYPE_I1:
 815         case MONO_TYPE_U1:
 816         case MONO_TYPE_BOOLEAN:
 817                 return CEE_STIND_I1;
 818         case MONO_TYPE_I2:
 819         case MONO_TYPE_U2:
 820         case MONO_TYPE_CHAR:
 821                 return CEE_STIND_I2;
 822         case MONO_TYPE_I4:
 823         case MONO_TYPE_U4:
 824                 return CEE_STIND_I4;
 825         case MONO_TYPE_I:
 826         case MONO_TYPE_U:
 827         case MONO_TYPE_PTR:
 828         case MONO_TYPE_FNPTR:
 829                 return CEE_STIND_I;
 830         case MONO_TYPE_CLASS:
 831         case MONO_TYPE_STRING:
 832         case MONO_TYPE_OBJECT:
 833         case MONO_TYPE_SZARRAY:
 834         case MONO_TYPE_ARRAY:
 835                 return CEE_STIND_REF;
 836         case MONO_TYPE_I8:
 837         case MONO_TYPE_U8:
 838                 return CEE_STIND_I8;
 839         case MONO_TYPE_R4:
 840                 return CEE_STIND_R4;
 841         case MONO_TYPE_R8:
 842                 return CEE_STIND_R8;
 843         case MONO_TYPE_VALUETYPE:
 844                 if (type->data.klass->enumtype) {
 845                         t = type->data.klass->enum_basetype->type;
 846                         goto handle_enum;
 847                 }
 848                 return CEE_STOBJ;
 849                 /* fail right now */
 850         default:
 851                 g_error ("unknown type %02x in type_to_stind", type->type);
 852         }
 853         return -1;
 854 }
 855
 856 /*
 857  * Returns the type used in the eval stack when @type is loaded.
 858  * FIXME: return a MonoType/MonoClass for the byref and VALUETYPE cases.
 859  */
 860 static void
 861 type_to_eval_stack_type (MonoType *type, MonoInst *inst) {
 862         int t = type->type;
 863
 864         if (type->byref) {
 865                 inst->type = STACK_MP;
 866                 return;
 867         }
 868
 869 handle_enum:
 870         switch (t) {
 871         case MONO_TYPE_I1:
 872         case MONO_TYPE_U1:
 873         case MONO_TYPE_BOOLEAN:
 874         case MONO_TYPE_I2:
 875         case MONO_TYPE_U2:
 876         case MONO_TYPE_CHAR:
 877         case MONO_TYPE_I4:
 878         case MONO_TYPE_U4:
 879                 inst->type = STACK_I4;
 880                 return;
 881         case MONO_TYPE_I:
 882         case MONO_TYPE_U:
 883         case MONO_TYPE_PTR:
 884         case MONO_TYPE_FNPTR:
 885                 inst->type = STACK_PTR;
 886                 return;
 887         case MONO_TYPE_CLASS:
 888         case MONO_TYPE_STRING:
 889         case MONO_TYPE_OBJECT:
 890         case MONO_TYPE_SZARRAY:
 891         case MONO_TYPE_ARRAY:
 892                 inst->type = STACK_OBJ;
 893                 return;
 894         case MONO_TYPE_I8:
 895         case MONO_TYPE_U8:
 896                 inst->type = STACK_I8;
 897                 return;
 898         case MONO_TYPE_R4:
 899         case MONO_TYPE_R8:
 900                 inst->type = STACK_R8;
 901                 return;
 902         case MONO_TYPE_VALUETYPE:
 903                 if (type->data.klass->enumtype) {
 904                         t = type->data.klass->enum_basetype->type;
 905                         goto handle_enum;
 906                 } else {
 907                         inst->klass = type->data.klass;
 908                         inst->type = STACK_VTYPE;
 909                         return;
 910                 }
 911         default:
 912                 g_error ("unknown type 0x%02x in eval stack type", type->type);
 913         }
 914 }
 915
 916 /*
 917  * The following tables are used to quickly validate the IL code in type_from_op ().
 918  */
 919 static const char
 920 bin_num_table [STACK_MAX] [STACK_MAX] = {
 921         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 922         {STACK_INV, STACK_I4,  STACK_INV, STACK_PTR, STACK_INV, STACK_MP,  STACK_INV, STACK_INV},
 923         {STACK_INV, STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 924         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_MP,  STACK_INV, STACK_INV},
 925         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_R8,  STACK_INV, STACK_INV, STACK_INV},
 926         {STACK_INV, STACK_MP,  STACK_INV, STACK_MP,  STACK_INV, STACK_PTR, STACK_INV, STACK_INV},
 927         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 928         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
 929 };
 930
 931 static const char
 932 neg_table [] = {
 933         STACK_INV, STACK_I4, STACK_I8, STACK_PTR, STACK_R8, STACK_INV, STACK_INV, STACK_INV
 934 };
 935
 936 /* reduce the size of this table */
 937 static const char
 938 bin_int_table [STACK_MAX] [STACK_MAX] = {
 939         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 940         {STACK_INV, STACK_I4,  STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 941         {STACK_INV, STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 942         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 943         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 944         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 945         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 946         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
 947 };
 948
 949 static const char
 950 bin_comp_table [STACK_MAX] [STACK_MAX] = {
 951         {0},
 952         {0, 1, 0, 1, 0, 0, 4, 0},
 953         {0, 0, 1, 0, 0, 0, 0, 0},
 954         {0, 1, 0, 1, 0, 2, 4, 0},
 955         {0, 0, 0, 0, 1, 0, 0, 0},
 956         {0, 0, 0, 2, 0, 1, 0, 0},
 957         {0, 4, 0, 4, 0, 0, 3, 0},
 958         {0, 0, 0, 0, 0, 0, 0, 0},
 959 };
 960
 961 /* reduce the size of this table */
 962 static const char
 963 shift_table [STACK_MAX] [STACK_MAX] = {
 964         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 965         {STACK_INV, STACK_I4,  STACK_INV, STACK_I4,  STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 966         {STACK_INV, STACK_I8,  STACK_INV, STACK_I8,  STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 967         {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 968         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 969         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 970         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
 971         {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
 972 };
 973
 974 /*
 975  * Tables to map from the non-specific opcode to the matching
 976  * type-specific opcode.
 977  */
 978 /* handles from CEE_ADD to CEE_SHR_UN (CEE_REM_UN for floats) */
 979 static const guint16
 980 binops_op_map [STACK_MAX] = {
 981         0, 0, OP_LADD-CEE_ADD, OP_PADD-CEE_ADD, OP_FADD-CEE_ADD, 0
 982 };
 983
 984 /* handles from CEE_NEG to CEE_CONV_U8 */
 985 static const guint16
 986 unops_op_map [STACK_MAX] = {
 987         0, 0, OP_LNEG-CEE_NEG, OP_PNEG-CEE_NEG, OP_FNEG-CEE_NEG, 0
 988 };
 989
 990 /* handles from CEE_CONV_U2 to CEE_SUB_OVF_UN */
 991 static const guint16
 992 ovfops_op_map [STACK_MAX] = {
 993         0, 0, OP_LCONV_TO_U2-CEE_CONV_U2, OP_PCONV_TO_U2-CEE_CONV_U2, OP_FCONV_TO_U2-CEE_CONV_U2, 0
 994 };
 995
 996 /* handles from CEE_CONV_OVF_I1_UN to CEE_CONV_OVF_U_UN */
 997 static const guint16
 998 ovf2ops_op_map [STACK_MAX] = {
 999         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, 0
1000 };
1001
1002 /* handles from CEE_CONV_OVF_I1 to CEE_CONV_OVF_U8 */
1003 static const guint16
1004 ovf3ops_op_map [STACK_MAX] = {
1005         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, 0
1006 };
1007
1008 /* handles from CEE_CEQ to CEE_CLT_UN */
1009 static const guint16
1010 ceqops_op_map [STACK_MAX] = {
1011         0, 0, OP_LCEQ-CEE_CEQ, OP_PCEQ-CEE_CEQ, OP_FCEQ-CEE_CEQ, 0
1012 };
1013
1014 /*
1015  * Sets ins->type (the type on the eval stack) according to the
1016  * type of the opcode and the arguments to it.
1017  * Invalid IL code is marked by setting ins->type to the invalid value STACK_INV.
1018  *
1019  * FIXME: this function sets ins->type unconditionally in some cases, but
1020  * it should set it to invalid for some types (a conv.x on an object)
1021  */
1022 static void
1023 type_from_op (MonoInst *ins) {
1024         switch (ins->opcode) {
1025         /* binops */
1026         case CEE_ADD:
1027         case CEE_SUB:
1028         case CEE_MUL:
1029         case CEE_DIV:
1030         case CEE_REM:
1031                 /* FIXME: check unverifiable args for STACK_MP */
1032                 ins->type = bin_num_table [ins->inst_i0->type] [ins->inst_i1->type];
1033                 ins->opcode += binops_op_map [ins->type];
1034                 return;
1035         case CEE_DIV_UN:
1036         case CEE_REM_UN:
1037         case CEE_AND:
1038         case CEE_OR:
1039         case CEE_XOR:
1040                 ins->type = bin_int_table [ins->inst_i0->type] [ins->inst_i1->type];
1041                 ins->opcode += binops_op_map [ins->type];
1042                 return;
1043         case CEE_SHL:
1044         case CEE_SHR:
1045         case CEE_SHR_UN:
1046                 ins->type = shift_table [ins->inst_i0->type] [ins->inst_i1->type];
1047                 ins->opcode += binops_op_map [ins->type];
1048                 return;
1049         case OP_COMPARE:
1050                 /* FIXME: handle some specifics with ins->next->type */
1051                 ins->type = bin_comp_table [ins->inst_i0->type] [ins->inst_i1->type] ? STACK_I4: STACK_INV;
1052                 return;
1053         case 256+CEE_CEQ:
1054         case 256+CEE_CGT:
1055         case 256+CEE_CGT_UN:
1056         case 256+CEE_CLT:
1057         case 256+CEE_CLT_UN:
1058                 ins->type = bin_comp_table [ins->inst_i0->type] [ins->inst_i1->type] ? STACK_I4: STACK_INV;
1059                 ins->opcode += ceqops_op_map [ins->inst_i0->type];
1060                 return;
1061         /* unops */
1062         case CEE_NEG:
1063                 ins->type = neg_table [ins->inst_i0->type];
1064                 ins->opcode += unops_op_map [ins->type];
1065                 return;
1066         case CEE_NOT:
1067                 if (ins->inst_i0->type >= STACK_I4 && ins->inst_i0->type <= STACK_PTR)
1068                         ins->type = ins->inst_i0->type;
1069                 else
1070                         ins->type = STACK_INV;
1071                 ins->opcode += unops_op_map [ins->type];
1072                 return;
1073         case CEE_CONV_I1:
1074         case CEE_CONV_I2:
1075         case CEE_CONV_I4:
1076         case CEE_CONV_U4:
1077                 ins->type = STACK_I4;
1078                 ins->opcode += unops_op_map [ins->inst_i0->type];
1079                 return;
1080         case CEE_CONV_R_UN:
1081                 ins->type = STACK_R8;
1082                 switch (ins->inst_i0->type) {
1083                 case STACK_I4:
1084                 case STACK_PTR:
1085                         break;
1086                 case STACK_I8:
1087                         ins->opcode = OP_LCONV_TO_R_UN;
1088                         break;
1089                 }
1090                 return;
1091         case CEE_CONV_OVF_I1:
1092         case CEE_CONV_OVF_U1:
1093         case CEE_CONV_OVF_I2:
1094         case CEE_CONV_OVF_U2:
1095         case CEE_CONV_OVF_I4:
1096         case CEE_CONV_OVF_U4:
1097                 ins->type = STACK_I4;
1098                 ins->opcode += ovf3ops_op_map [ins->inst_i0->type];
1099                 return;
1100         case CEE_CONV_OVF_I_UN:
1101         case CEE_CONV_OVF_U_UN:
1102                 ins->type = STACK_PTR;
1103                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1104                 return;
1105         case CEE_CONV_OVF_I1_UN:
1106         case CEE_CONV_OVF_I2_UN:
1107         case CEE_CONV_OVF_I4_UN:
1108         case CEE_CONV_OVF_U1_UN:
1109         case CEE_CONV_OVF_U2_UN:
1110         case CEE_CONV_OVF_U4_UN:
1111                 ins->type = STACK_I4;
1112                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1113                 return;
1114         case CEE_CONV_U:
1115                 ins->type = STACK_PTR;
1116                 switch (ins->inst_i0->type) {
1117                 case STACK_I4:
1118                 case STACK_PTR:
1119                 case STACK_MP:
1120                         break;
1121                 case STACK_I8:
1122                         ins->opcode = OP_LCONV_TO_U;
1123                         break;
1124                 case STACK_R8:
1125                         ins->opcode = OP_FCONV_TO_U;
1126                         break;
1127                 }
1128                 return;
1129         case CEE_CONV_I8:
1130         case CEE_CONV_U8:
1131                 ins->type = STACK_I8;
1132                 ins->opcode += unops_op_map [ins->inst_i0->type];
1133                 return;
1134         case CEE_CONV_OVF_I8:
1135         case CEE_CONV_OVF_U8:
1136                 ins->type = STACK_I8;
1137                 ins->opcode += ovf3ops_op_map [ins->inst_i0->type];
1138                 return;
1139         case CEE_CONV_OVF_U8_UN:
1140         case CEE_CONV_OVF_I8_UN:
1141                 ins->type = STACK_I8;
1142                 ins->opcode += ovf2ops_op_map [ins->inst_i0->type];
1143                 return;
1144         case CEE_CONV_R4:
1145         case CEE_CONV_R8:
1146                 ins->type = STACK_R8;
1147                 ins->opcode += unops_op_map [ins->inst_i0->type];
1148                 return;
1149         case CEE_CKFINITE:
1150                 ins->type = STACK_R8;
1151                 return;
1152         case CEE_CONV_U2:
1153         case CEE_CONV_U1:
1154                 ins->type = STACK_I4;
1155                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1156                 break;
1157         case CEE_CONV_I:
1158         case CEE_CONV_OVF_I:
1159         case CEE_CONV_OVF_U:
1160                 ins->type = STACK_PTR;
1161                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1162                 return;
1163         case CEE_ADD_OVF:
1164         case CEE_ADD_OVF_UN:
1165         case CEE_MUL_OVF:
1166         case CEE_MUL_OVF_UN:
1167         case CEE_SUB_OVF:
1168         case CEE_SUB_OVF_UN:
1169                 ins->type = bin_num_table [ins->inst_i0->type] [ins->inst_i1->type];
1170                 ins->opcode += ovfops_op_map [ins->inst_i0->type];
1171                 return;
1172         default:
1173                 g_error ("opcode 0x%04x not handled in type from op", ins->opcode);
1174                 break;
1175         }
1176 }
1177
1178 static const char
1179 ldind_type [] = {
1180         STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I8, STACK_MP, STACK_R8, STACK_R8, STACK_OBJ
1181 };
1182
1183 /* map ldelem.x to the matching ldind.x opcode */
1184 static const guchar
1185 ldelem_to_ldind [] = {
1186         CEE_LDIND_I1,
1187         CEE_LDIND_U1,
1188         CEE_LDIND_I2,
1189         CEE_LDIND_U2,
1190         CEE_LDIND_I4,
1191         CEE_LDIND_U4,
1192         CEE_LDIND_I8,
1193         CEE_LDIND_I,
1194         CEE_LDIND_R4,
1195         CEE_LDIND_R8,
1196         CEE_LDIND_REF
1197 };
1198
1199 /* map stelem.x to the matching stind.x opcode */
1200 static const guchar
1201 stelem_to_stind [] = {
1202         CEE_STIND_I,
1203         CEE_STIND_I1,
1204         CEE_STIND_I2,
1205         CEE_STIND_I4,
1206         CEE_STIND_I8,
1207         CEE_STIND_R4,
1208         CEE_STIND_R8,
1209         CEE_STIND_REF
1210 };
1211
1212 #if 0
1213
1214 static const char
1215 param_table [STACK_MAX] [STACK_MAX] = {
1216         {0},
1217 };
1218
1219 static int
1220 check_values_to_signature (MonoInst *args, MonoType *this, MonoMethodSignature *sig) {
1221         int i;
1222
1223         if (sig->hasthis) {
1224                 switch (args->type) {
1225                 case STACK_I4:
1226                 case STACK_I8:
1227                 case STACK_R8:
1228                 case STACK_VTYPE:
1229                 case STACK_INV:
1230                         return 0;
1231                 }
1232                 args++;
1233         }
1234         for (i = 0; i < sig->param_count; ++i) {
1235                 switch (args [i].type) {
1236                 case STACK_INV:
1237                         return 0;
1238                 case STACK_MP:
1239                         if (!sig->params [i]->byref)
1240                                 return 0;
1241                         continue;
1242                 case STACK_OBJ:
1243                         if (sig->params [i]->byref)
1244                                 return 0;
1245                         switch (sig->params [i]->type) {
1246                         case MONO_TYPE_CLASS:
1247                         case MONO_TYPE_STRING:
1248                         case MONO_TYPE_OBJECT:
1249                         case MONO_TYPE_SZARRAY:
1250                         case MONO_TYPE_ARRAY:
1251                                 break;
1252                         default:
1253                                 return 0;
1254                         }
1255                         continue;
1256                 case STACK_R8:
1257                         if (sig->params [i]->byref)
1258                                 return 0;
1259                         if (sig->params [i]->type != MONO_TYPE_R4 && sig->params [i]->type != MONO_TYPE_R8)
1260                                 return 0;
1261                         continue;
1262                 case STACK_PTR:
1263                 case STACK_I4:
1264                 case STACK_I8:
1265                 case STACK_VTYPE:
1266                         break;
1267                 }
1268                 /*if (!param_table [args [i].type] [sig->params [i]->type])
1269                         return 0;*/
1270         }
1271         return 1;
1272 }
1273 #endif
1274
1275 /*
1276  * When we need a pointer to the current domain many times in a method, we
1277  * call mono_domain_get() once and we store the result in a local variable.
1278  * This function returns the variable that represents the MonoDomain*.
1279  */
1280 inline static MonoInst *
1281 mono_get_domainvar (MonoCompile *cfg)
1282 {
1283         if (!cfg->domainvar)
1284                 cfg->domainvar = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1285         return cfg->domainvar;
1286 }
1287
1288 MonoInst*
1289 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
1290 {
1291         MonoInst *inst;
1292         int num = cfg->num_varinfo;
1293
1294         if ((num + 1) >= cfg->varinfo_count) {
1295                 cfg->varinfo_count = (cfg->varinfo_count + 2) * 2;
1296                 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
1297                 cfg->vars = (MonoMethodVar **)g_realloc (cfg->vars, sizeof (MonoMethodVar*) * cfg->varinfo_count);
1298         }
1299
1300         mono_jit_stats.allocate_var++;
1301
1302         MONO_INST_NEW (cfg, inst, opcode);
1303         inst->inst_c0 = num;
1304         inst->inst_vtype = type;
1305         inst->klass = mono_class_from_mono_type (type);
1306         /* if set to 1 the variable is native */
1307         inst->unused = 0;
1308
1309         cfg->varinfo [num] = inst;
1310
1311         cfg->vars [num] = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoMethodVar));
1312         MONO_INIT_VARINFO (cfg->vars [num], num);
1313
1314         cfg->num_varinfo++;
1315         //g_print ("created temp %d of type %s\n", num, mono_type_get_name (type));
1316         return inst;
1317 }
1318
1319 static MonoType*
1320 type_from_stack_type (MonoInst *ins) {
1321         switch (ins->type) {
1322         case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1323         case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1324         case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1325         case STACK_R8: return &mono_defaults.double_class->byval_arg;
1326         case STACK_MP: return &mono_defaults.int_class->byval_arg;
1327         case STACK_OBJ: return &mono_defaults.object_class->byval_arg;
1328         case STACK_VTYPE: return &ins->klass->byval_arg;
1329         default:
1330                 g_error ("stack type %d to montype not handled\n", ins->type);
1331         }
1332         return NULL;
1333 }
1334
1335 static MonoClass*
1336 array_access_to_klass (int opcode)
1337 {
1338         switch (opcode) {
1339         case CEE_LDELEM_U1:
1340                 return mono_defaults.byte_class;
1341         case CEE_LDELEM_U2:
1342                 return mono_defaults.uint16_class;
1343         case CEE_LDELEM_I:
1344         case CEE_STELEM_I:
1345                 return mono_defaults.int_class;
1346         case CEE_LDELEM_I1:
1347         case CEE_STELEM_I1:
1348                 return mono_defaults.sbyte_class;
1349         case CEE_LDELEM_I2:
1350         case CEE_STELEM_I2:
1351                 return mono_defaults.int16_class;
1352         case CEE_LDELEM_I4:
1353         case CEE_STELEM_I4:
1354                 return mono_defaults.int32_class;
1355         case CEE_LDELEM_U4:
1356                 return mono_defaults.uint32_class;
1357         case CEE_LDELEM_I8:
1358         case CEE_STELEM_I8:
1359                 return mono_defaults.int64_class;
1360         case CEE_LDELEM_R4:
1361         case CEE_STELEM_R4:
1362                 return mono_defaults.single_class;
1363         case CEE_LDELEM_R8:
1364         case CEE_STELEM_R8:
1365                 return mono_defaults.double_class;
1366         case CEE_LDELEM_REF:
1367         case CEE_STELEM_REF:
1368                 return mono_defaults.object_class;
1369         default:
1370                 g_assert_not_reached ();
1371         }
1372         return NULL;
1373 }
1374
1375 static void
1376 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1377 {
1378         MonoInst *prev;
1379         if (!bb->code) {
1380                 MONO_ADD_INS (bb, inst);
1381                 return;
1382         }
1383         switch (bb->last_ins->opcode) {
1384         case CEE_BEQ:
1385         case CEE_BGE:
1386         case CEE_BGT:
1387         case CEE_BLE:
1388         case CEE_BLT:
1389         case CEE_BNE_UN:
1390         case CEE_BGE_UN:
1391         case CEE_BGT_UN:
1392         case CEE_BLE_UN:
1393         case CEE_BLT_UN:
1394         case CEE_BR:
1395                 prev = bb->code;
1396                 while (prev->next && prev->next != bb->last_ins)
1397                         prev = prev->next;
1398                 if (prev == bb->code) {
1399                         if (bb->last_ins == bb->code) {
1400                                 inst->next = bb->code;
1401                                 bb->code = inst;
1402                         } else {
1403                                 inst->next = prev->next;
1404                                 prev->next = inst;
1405                         }
1406                 } else {
1407                         inst->next = bb->last_ins;
1408                         prev->next = inst;
1409                 }
1410                 break;
1411         //      g_warning ("handle conditional jump in add_ins_to_end ()\n");
1412         default:
1413                 MONO_ADD_INS (bb, inst);
1414                 break;
1415         }
1416 }
1417
1418 void
1419 mono_add_varcopy_to_end (MonoCompile *cfg, MonoBasicBlock *bb, int src, int dest)
1420 {
1421         MonoInst *inst, *load;
1422
1423         NEW_TEMPLOAD (cfg, load, src);
1424
1425         NEW_TEMPSTORE (cfg, inst, dest, load);
1426         if (inst->opcode == CEE_STOBJ) {
1427                 NEW_TEMPLOADA (cfg, inst, dest);
1428                 handle_stobj (cfg, bb, inst, load, NULL, inst->klass, TRUE, FALSE);
1429         } else {
1430                 inst->cil_code = NULL;
1431                 mono_add_ins_to_end (bb, inst);
1432         }
1433 }
1434
1435 /*
1436  * We try to share variables when possible
1437  */
1438 static MonoInst *
1439 mono_compile_get_interface_var (MonoCompile *cfg, int slot, MonoInst *ins)
1440 {
1441         MonoInst *res;
1442         int pos, vnum;
1443
1444         /* inlining can result in deeper stacks */
1445         if (slot >= ((MonoMethodNormal *)cfg->method)->header->max_stack)
1446                 return mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1447
1448         pos = ins->type - 1 + slot * STACK_MAX;
1449
1450         switch (ins->type) {
1451         case STACK_I4:
1452         case STACK_I8:
1453         case STACK_R8:
1454         case STACK_PTR:
1455         case STACK_MP:
1456         case STACK_OBJ:
1457                 if ((vnum = cfg->intvars [pos]))
1458                         return cfg->varinfo [vnum];
1459                 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1460                 cfg->intvars [pos] = res->inst_c0;
1461                 break;
1462         default:
1463                 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1464         }
1465         return res;
1466 }
1467
1468 /*
1469  * This function is called to handle items that are left on the evaluation stack
1470  * at basic block boundaries. What happens is that we save the values to local variables
1471  * and we reload them later when first entering the target basic block (with the
1472  * handle_loaded_temps () function).
1473  * A single joint point will use the same variables (stored in the array bb->out_stack or
1474  * bb->in_stack, if the basic block is before or after the joint point).
1475  */
1476 static int
1477 handle_stack_args (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **sp, int count) {
1478         int i;
1479         MonoBasicBlock *outb;
1480         MonoInst *inst, **locals;
1481
1482         if (!count)
1483                 return 0;
1484         if (cfg->verbose_level > 3)
1485                 g_print ("%d item(s) on exit from B%d\n", count, bb->block_num);
1486         if (!bb->out_scount) {
1487                 int found = 0;
1488                 bb->out_scount = count;
1489                 //g_print ("bblock %d has out:", bb->block_num);
1490                 for (i = 0; i < bb->out_count; ++i) {
1491                         outb = bb->out_bb [i];
1492                         //g_print (" %d", outb->block_num);
1493                         if (outb->in_stack) {
1494                                 found = 1;
1495                                 bb->out_stack = outb->in_stack;
1496                                 break;
1497                         }
1498                 }
1499                 //g_print ("\n");
1500                 if (!found) {
1501                         bb->out_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * count);
1502                         for (i = 0; i < count; ++i) {
1503 #if 1
1504                                 /* try to reuse temps already allocated for this purpouse, if they occupy the same
1505                                  * stack slot and if they are of the same type. */
1506                                 bb->out_stack [i] = mono_compile_get_interface_var (cfg, i, sp [i]);
1507 #else
1508                                 bb->out_stack [i] = mono_compile_create_var (cfg, type_from_stack_type (sp [i]), OP_LOCAL);
1509 #endif
1510                         }
1511                 }
1512         }
1513         locals = bb->out_stack;
1514         for (i = 0; i < count; ++i) {
1515                 /* add store ops at the end of the bb, before the branch */
1516                 NEW_TEMPSTORE (cfg, inst, locals [i]->inst_c0, sp [i]);
1517                 if (inst->opcode == CEE_STOBJ) {
1518                         NEW_TEMPLOADA (cfg, inst, locals [i]->inst_c0);
1519                         handle_stobj (cfg, bb, inst, sp [i], sp [i]->cil_code, inst->klass, TRUE, FALSE);
1520                 } else {
1521                         inst->cil_code = sp [i]->cil_code;
1522                         mono_add_ins_to_end (bb, inst);
1523                 }
1524                 if (cfg->verbose_level > 3)
1525                         g_print ("storing %d to temp %d\n", i, locals [i]->inst_c0);
1526         }
1527
1528         for (i = 0; i < bb->out_count; ++i) {
1529                 outb = bb->out_bb [i];
1530                 if (outb->in_scount)
1531                         continue; /* check they are the same locals */
1532                 outb->in_scount = count;
1533                 outb->in_stack = locals;
1534         }
1535         return 0;
1536 }
1537
1538 static int
1539 ret_type_to_call_opcode (MonoType *type, int calli, int virt)
1540 {
1541         int t = type->type;
1542
1543         if (type->byref)
1544                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1545
1546 handle_enum:
1547         switch (t) {
1548         case MONO_TYPE_VOID:
1549                 return calli? OP_VOIDCALL_REG: virt? OP_VOIDCALLVIRT: OP_VOIDCALL;
1550         case MONO_TYPE_I1:
1551         case MONO_TYPE_U1:
1552         case MONO_TYPE_BOOLEAN:
1553         case MONO_TYPE_I2:
1554         case MONO_TYPE_U2:
1555         case MONO_TYPE_CHAR:
1556         case MONO_TYPE_I4:
1557         case MONO_TYPE_U4:
1558                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1559         case MONO_TYPE_I:
1560         case MONO_TYPE_U:
1561         case MONO_TYPE_PTR:
1562                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1563         case MONO_TYPE_CLASS:
1564         case MONO_TYPE_STRING:
1565         case MONO_TYPE_OBJECT:
1566         case MONO_TYPE_SZARRAY:
1567         case MONO_TYPE_ARRAY:
1568                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1569         case MONO_TYPE_I8:
1570         case MONO_TYPE_U8:
1571                 return calli? OP_LCALL_REG: virt? OP_LCALLVIRT: OP_LCALL;
1572         case MONO_TYPE_R4:
1573         case MONO_TYPE_R8:
1574                 return calli? OP_FCALL_REG: virt? OP_FCALLVIRT: OP_FCALL;
1575         case MONO_TYPE_VALUETYPE:
1576                 if (type->data.klass->enumtype) {
1577                         t = type->data.klass->enum_basetype->type;
1578                         goto handle_enum;
1579                 } else
1580                         return calli? OP_VCALL_REG: virt? OP_VCALLVIRT: OP_VCALL;
1581         default:
1582                 g_error ("unknown type %02x in ret_type_to_call_opcode", type->type);
1583         }
1584         return -1;
1585 }
1586
1587 void
1588 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1589 {
1590         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1591
1592         ji->ip.label = label;
1593         ji->type = MONO_PATCH_INFO_SWITCH;
1594         ji->data.table = bbs;
1595         ji->next = cfg->patch_info;
1596         ji->table_size = num_blocks;
1597         cfg->patch_info = ji;
1598 }
1599
1600 /*
1601  * When we add a tree of instructions, we need to ensure the instructions currently
1602  * on the stack are executed before (like, if we load a value from a local).
1603  * We ensure this by saving the currently loaded values to temps and rewriting the
1604  * instructions to load the values.
1605  * This is not done for opcodes that terminate a basic block (because it's handled already
1606  * by handle_stack_args ()) and for opcodes that can't change values, like POP.
1607  */
1608 static void
1609 handle_loaded_temps (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst **stack, MonoInst **sp)
1610 {
1611         MonoInst *load, *store, *temp, *ins;
1612
1613         while (stack < sp) {
1614                 ins = *stack;
1615                 /* handle also other constants */
1616                 if (ins->opcode != OP_ICONST) {
1617                         temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1618                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
1619                         store->cil_code = ins->cil_code;
1620                         if (store->opcode == CEE_STOBJ) {
1621                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
1622                                 handle_stobj (cfg, bblock, store, ins, ins->cil_code, temp->klass, FALSE, FALSE);
1623                         } else
1624                                 MONO_ADD_INS (bblock, store);
1625                         NEW_TEMPLOAD (cfg, load, temp->inst_c0);
1626                         load->cil_code = ins->cil_code;
1627                         *stack = load;
1628                 }
1629                 stack++;
1630         }
1631 }
1632
1633 inline static int
1634 mono_spill_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoCallInst *call, MonoMethodSignature *sig, gboolean ret_object,
1635                  const guint8 *ip, gboolean to_end)
1636 {
1637         MonoInst *temp, *store, *ins = (MonoInst*)call;
1638         MonoType *ret = sig->ret;
1639
1640         if (!MONO_TYPE_IS_VOID (ret) || ret_object) {
1641                 if (ret_object) {
1642                         call->inst.type = STACK_OBJ;
1643                         call->inst.opcode = CEE_CALL;
1644                         temp = mono_compile_create_var (cfg, &mono_defaults.string_class->byval_arg, OP_LOCAL);
1645                 } else {
1646                         type_to_eval_stack_type (ret, ins);
1647                         temp = mono_compile_create_var (cfg, ret, OP_LOCAL);
1648                 }
1649
1650                 if (MONO_TYPE_ISSTRUCT (ret)) {
1651                         MonoInst *loada;
1652
1653                         /* we use this to allocate native sized structs */
1654                         temp->unused = sig->pinvoke;
1655
1656                         NEW_TEMPLOADA (cfg, loada, temp->inst_c0);
1657                         if (call->inst.opcode == OP_VCALL)
1658                                 ins->inst_left = loada;
1659                         else
1660                                 ins->inst_right = loada; /* a virtual or indirect call */
1661
1662                         if (to_end)
1663                                 mono_add_ins_to_end (bblock, ins);
1664                         else
1665                                 MONO_ADD_INS (bblock, ins);
1666                 } else {
1667                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
1668                         store->cil_code = ip;
1669                         if (to_end)
1670                                 mono_add_ins_to_end (bblock, store);
1671                         else
1672                                 MONO_ADD_INS (bblock, store);
1673                 }
1674                 return temp->inst_c0;
1675         } else {
1676                 if (to_end)
1677                         mono_add_ins_to_end (bblock, ins);
1678                 else
1679                         MONO_ADD_INS (bblock, ins);
1680                 return -1;
1681         }
1682 }
1683
1684 inline static MonoCallInst *
1685 mono_emit_call_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
1686                      MonoInst **args, int calli, int virtual, const guint8 *ip, gboolean to_end)
1687 {
1688         MonoCallInst *call;
1689         int i;
1690
1691         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (sig->ret, calli, virtual));
1692
1693         call->inst.cil_code = ip;
1694         call->args = args;
1695         call->signature = sig;
1696         call = mono_arch_call_opcode (cfg, bblock, call, virtual);
1697
1698         for (i = 0; i < (sig->param_count + sig->hasthis); ++i) {
1699                 if (call->args [i]) {
1700                         if (!call->args [i]->cil_code)
1701                                 call->args [i]->cil_code = ip;
1702                         if (to_end)
1703                                 mono_add_ins_to_end (bblock, call->args [i]);
1704                         else
1705                                 MONO_ADD_INS (bblock, call->args [i]);
1706                 }
1707         }
1708         return call;
1709 }
1710
1711 inline static int
1712 mono_emit_calli (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
1713                  MonoInst **args, MonoInst *addr, const guint8 *ip)
1714 {
1715         MonoCallInst *call = mono_emit_call_args (cfg, bblock, sig, args, TRUE, FALSE, ip, FALSE);
1716
1717         call->inst.inst_i0 = addr;
1718
1719         return mono_spill_call (cfg, bblock, call, sig, FALSE, ip, FALSE);
1720 }
1721
1722 static MonoCallInst*
1723 mono_emit_method_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method, MonoMethodSignature *sig,
1724                        MonoInst **args, const guint8 *ip, MonoInst *this)
1725 {
1726         gboolean virtual = this != NULL;
1727         MonoCallInst *call;
1728
1729         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, virtual, ip, FALSE);
1730
1731         if (this && sig->hasthis &&
1732             (method->klass->marshalbyref || method->klass == mono_defaults.object_class) &&
1733             !(method->flags & METHOD_ATTRIBUTE_VIRTUAL) && !MONO_CHECK_THIS (this)) {
1734                 call->method = mono_marshal_get_remoting_invoke_with_check (method);
1735         } else {
1736                 call->method = method;
1737         }
1738         call->inst.flags |= MONO_INST_HAS_METHOD;
1739         call->inst.inst_left = this;
1740
1741         return call;
1742 }
1743
1744 inline static int
1745 mono_emit_method_call_spilled (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method,
1746                        MonoInst **args, const guint8 *ip, MonoInst *this)
1747 {
1748         MonoCallInst *call = mono_emit_method_call (cfg, bblock, method, method->signature, args, ip, this);
1749
1750         return mono_spill_call (cfg, bblock, call, method->signature, method->string_ctor, ip, FALSE);
1751 }
1752
1753 inline static int
1754 mono_emit_native_call (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoMethodSignature *sig,
1755                        MonoInst **args, const guint8 *ip, gboolean to_end)
1756 {
1757         MonoCallInst *call;
1758
1759         g_assert (sig);
1760
1761         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, FALSE, ip, to_end);
1762         call->fptr = func;
1763         return mono_spill_call (cfg, bblock, call, sig, func == mono_array_new_va, ip, to_end);
1764 }
1765
1766 inline static int
1767 mono_emit_jit_icall (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoInst **args, const guint8 *ip)
1768 {
1769         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (func);
1770
1771         if (!info) {
1772                 g_warning ("unregistered JIT ICall");
1773                 g_assert_not_reached ();
1774         }
1775
1776         return mono_emit_native_call (cfg, bblock, info->wrapper, info->sig, args, ip, FALSE);
1777 }
1778
1779 static void
1780 mono_emulate_opcode (MonoCompile *cfg, MonoInst *tree, MonoInst **iargs, MonoJitICallInfo *info)
1781 {
1782         MonoInst *ins, *temp = NULL, *store, *load;
1783         int i, nargs;
1784         MonoCallInst *call;
1785
1786         /*g_print ("emulating: ");
1787         mono_print_tree (tree);
1788         g_print ("\n");*/
1789         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (info->sig->ret, FALSE, FALSE));
1790         ins = (MonoInst*)call;
1791
1792         call->inst.cil_code = tree->cil_code;
1793         call->args = iargs;
1794         call->signature = info->sig;
1795
1796         call = mono_arch_call_opcode (cfg, cfg->cbb, call, FALSE);
1797
1798         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
1799                 temp = mono_compile_create_var (cfg, info->sig->ret, OP_LOCAL);
1800                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
1801                 store->cil_code = tree->cil_code;
1802         } else {
1803                 store = ins;
1804         }
1805
1806         nargs = info->sig->param_count + info->sig->hasthis;
1807
1808         for (i = 1; i < nargs; i++) {
1809                 call->args [i - 1]->next = call->args [i];
1810         }
1811
1812         if (nargs)
1813                 call->args [nargs - 1]->next = store;
1814
1815         if (cfg->prev_ins) {
1816                 store->next = cfg->prev_ins->next;
1817                 if (nargs)
1818                         cfg->prev_ins->next =  call->args [0];
1819                 else
1820                         cfg->prev_ins->next = store;
1821         } else {
1822                 store->next = cfg->cbb->code;
1823                 if (nargs)
1824                         cfg->cbb->code = call->args [0];
1825                 else
1826                         cfg->cbb->code = store;
1827         }
1828
1829
1830         call->fptr = info->wrapper;
1831
1832         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
1833                 NEW_TEMPLOAD (cfg, load, temp->inst_c0);
1834                 *tree = *load;
1835         }
1836 }
1837
1838 static MonoMethodSignature *
1839 mono_get_element_address_signature (int arity)
1840 {
1841         static GHashTable *sighash = NULL;
1842         MonoMethodSignature *res;
1843         int i;
1844
1845         if (!sighash)
1846                 sighash = g_hash_table_new (NULL, NULL);
1847
1848
1849         if ((res = g_hash_table_lookup (sighash, (gpointer)arity)))
1850                 return res;
1851
1852         res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1853
1854         res->params [0] = &mono_defaults.array_class->byval_arg;
1855
1856         for (i = 1; i <= arity; i++)
1857                 res->params [i] = &mono_defaults.int_class->byval_arg;
1858
1859         res->ret = &mono_defaults.int_class->byval_arg;
1860
1861         g_hash_table_insert (sighash, (gpointer)arity, res);
1862
1863         return res;
1864 }
1865
1866 static void
1867 handle_stobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, MonoInst *src, const unsigned char *ip, MonoClass *klass, gboolean to_end, gboolean native) {
1868         MonoInst *iargs [3];
1869         int n;
1870         guint32 align = 0;
1871
1872         g_assert (klass);
1873         /*
1874          * This check breaks with spilled vars... need to handle it during verification anyway.
1875          * g_assert (klass && klass == src->klass && klass == dest->klass);
1876          */
1877
1878         if (native)
1879                 n = mono_class_native_size (klass, &align);
1880         else
1881                 n = mono_class_value_size (klass, &align);
1882
1883         if ((cfg->opt & MONO_OPT_INTRINS) && !to_end && n <= sizeof (gpointer) * 5) {
1884                 MonoInst *inst;
1885                 MONO_INST_NEW (cfg, inst, OP_MEMCPY);
1886                 inst->inst_left = dest;
1887                 inst->inst_right = src;
1888                 inst->cil_code = ip;
1889                 inst->unused = n;
1890                 MONO_ADD_INS (bblock, inst);
1891                 return;
1892         }
1893         iargs [0] = dest;
1894         iargs [1] = src;
1895         NEW_ICONST (cfg, iargs [2], n);
1896
1897         mono_emit_native_call (cfg, bblock, helper_memcpy, helper_sig_memcpy, iargs, ip, to_end);
1898 }
1899
1900 static void
1901 handle_initobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, const guchar *ip, MonoClass *klass, MonoInst **stack_start, MonoInst **sp)
1902 {
1903         MonoInst *iargs [2];
1904         MonoInst *ins, *zero_int32;
1905         int n;
1906
1907         NEW_ICONST (cfg, zero_int32, 0);
1908
1909         mono_class_init (klass);
1910         n = mono_class_value_size (klass, NULL);
1911         MONO_INST_NEW (cfg, ins, 0);
1912         ins->cil_code = ip;
1913         ins->inst_left = dest;
1914         ins->inst_right = zero_int32;
1915         switch (n) {
1916         case 1:
1917                 ins->opcode = CEE_STIND_I1;
1918                 MONO_ADD_INS (bblock, ins);
1919                 break;
1920         case 2:
1921                 ins->opcode = CEE_STIND_I2;
1922                 MONO_ADD_INS (bblock, ins);
1923                 break;
1924         case 4:
1925                 ins->opcode = CEE_STIND_I4;
1926                 MONO_ADD_INS (bblock, ins);
1927                 break;
1928         default:
1929                 handle_loaded_temps (cfg, bblock, stack_start, sp);
1930                 NEW_ICONST (cfg, ins, n);
1931                 iargs [0] = dest;
1932                 iargs [1] = ins;
1933                 mono_emit_jit_icall (cfg, bblock, helper_initobj, iargs, ip);
1934                 break;
1935         }
1936 }
1937
1938 #define CODE_IS_STLOC(ip) (((ip) [0] >= CEE_STLOC_0 && (ip) [0] <= CEE_STLOC_3) || ((ip) [0] == CEE_STLOC_S))
1939
1940 static gboolean
1941 mono_method_check_inlining (MonoMethod *method)
1942 {
1943         MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
1944         MonoMethodSignature *signature = method->signature;
1945         int i;
1946
1947         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1948             (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
1949             (method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING) ||
1950             (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) ||
1951             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1952             (method->klass->marshalbyref) ||
1953             !header || header->num_clauses ||
1954             /* fixme: why cant we inline valuetype returns? */
1955             MONO_TYPE_ISSTRUCT (signature->ret))
1956                 return FALSE;
1957
1958         /* its not worth to inline methods with valuetype arguments?? */
1959         for (i = 0; i < signature->param_count; i++) {
1960                 if (MONO_TYPE_ISSTRUCT (signature->params [i])) {
1961                         return FALSE;
1962                 }
1963         }
1964
1965         //if (!MONO_TYPE_IS_VOID (signature->ret)) return FALSE;
1966
1967         /* also consider num_locals? */
1968         if (header->code_size < 20)
1969                 return TRUE;
1970
1971         return FALSE;
1972 }
1973
1974 static MonoInst*
1975 mini_get_ldelema_ins (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *cmethod, MonoInst **sp, unsigned char *ip, gboolean is_set)
1976 {
1977         int temp, rank;
1978         MonoInst *addr;
1979         MonoMethodSignature *esig;
1980
1981         rank = cmethod->signature->param_count - (is_set? 1: 0);
1982         /*
1983          * FIXME: handle TypeMismatch for set or use the slow path
1984          * for that.
1985          */
1986         if (rank == 2 && (cfg->opt & MONO_OPT_INTRINS)) {
1987                 MonoInst *indexes;
1988                 NEW_GROUP (cfg, indexes, sp [1], sp [2]);
1989                 MONO_INST_NEW (cfg, addr, OP_LDELEMA2D);
1990                 addr->inst_left = sp [0];
1991                 addr->inst_right = indexes;
1992                 addr->cil_code = ip;
1993                 addr->type = STACK_MP;
1994                 addr->klass = cmethod->klass;
1995                 return addr;
1996         }
1997         esig = mono_get_element_address_signature (rank);
1998         temp = mono_emit_native_call (cfg, bblock, ves_array_element_address, esig, sp, ip, FALSE);
1999         NEW_TEMPLOAD (cfg, addr, temp);
2000         return addr;
2001 }
2002
2003 static MonoInst*
2004 mini_get_opcode_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
2005 {
2006         int pc, op;
2007         MonoInst *ins;
2008
2009         if (cmethod->klass == mono_defaults.string_class) {
2010                 if (cmethod->name [0] != 'g' || strcmp (cmethod->name, "get_Chars"))
2011                         return NULL;
2012                 op = OP_GETCHR;
2013         } else if (cmethod->klass == mono_defaults.math_class) {
2014                 if (strcmp (cmethod->name, "Sin") == 0)
2015                         op = OP_SIN;
2016                 else if (strcmp (cmethod->name, "Cos") == 0)
2017                         op = OP_COS;
2018                 else if (strcmp (cmethod->name, "Tan") == 0)
2019                         op = OP_TAN;
2020                 else if (strcmp (cmethod->name, "Atan") == 0)
2021                         op = OP_ATAN;
2022                 else if (strcmp (cmethod->name, "Sqrt") == 0)
2023                         op = OP_SQRT;
2024                 else if (strcmp (cmethod->name, "Abs") == 0 && fsig->params [0]->type == MONO_TYPE_R8)
2025                         op = OP_ABS;
2026                 else
2027                         return NULL;
2028         } else {
2029                 return NULL;
2030         }
2031         pc = fsig->param_count + fsig->hasthis;
2032         MONO_INST_NEW (cfg, ins, op);
2033
2034         if (pc > 0) {
2035                 ins->inst_i0 = args [0];
2036                 if (pc > 1)
2037                         ins->inst_i1 = args [1];
2038         }
2039
2040         return ins;
2041 }
2042
2043 static void
2044 mono_save_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig, MonoInst **sp, MonoInst **args)
2045 {
2046         MonoInst *store, *temp;
2047         int i;
2048
2049         g_assert (!MONO_TYPE_ISSTRUCT (sig->ret));
2050
2051         if (!sig->hasthis && sig->param_count == 0)
2052                 return;
2053
2054         if (sig->hasthis) {
2055                 if (sp [0]->opcode == OP_ICONST) {
2056                         *args++ = sp [0];
2057                 } else {
2058                         temp = mono_compile_create_var (cfg, type_from_stack_type (*sp), OP_LOCAL);
2059                         *args++ = temp;
2060                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
2061                         store->cil_code = sp [0]->cil_code;
2062                         MONO_ADD_INS (bblock, store);
2063                 }
2064                 sp++;
2065         }
2066
2067         for (i = 0; i < sig->param_count; ++i) {
2068                 if (sp [0]->opcode == OP_ICONST) {
2069                         *args++ = sp [0];
2070                 } else {
2071                         temp = mono_compile_create_var (cfg, sig->params [i], OP_LOCAL);
2072                         *args++ = temp;
2073                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
2074                         store->cil_code = sp [0]->cil_code;
2075                         if (store->opcode == CEE_STOBJ) {
2076                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
2077                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, temp->klass, FALSE, FALSE);
2078                         } else {
2079                                 MONO_ADD_INS (bblock, store);
2080                         }
2081                 }
2082                 sp++;
2083         }
2084 }
2085
2086 static int
2087 inline_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoBasicBlock *bblock, MonoInst **sp,
2088                 guchar *ip, guint real_offset, GList *dont_inline, MonoBasicBlock **last_b)
2089 {
2090         MonoInst *ins, *rvar = NULL;
2091         MonoMethodHeader *cheader;
2092         MonoBasicBlock *ebblock, *sbblock;
2093         int i, costs, new_locals_offset;
2094
2095         if (cfg->verbose_level > 2)
2096                 g_print ("INLINE START %p %s\n", cmethod,  mono_method_full_name (cmethod, TRUE));
2097
2098         cheader = ((MonoMethodNormal *)cmethod)->header;
2099
2100         if (!cmethod->inline_info) {
2101                 mono_jit_stats.inlineable_methods++;
2102                 cmethod->inline_info = 1;
2103         }
2104         /* allocate space to store the return value */
2105         if (!MONO_TYPE_IS_VOID (fsig->ret)) {
2106                 rvar =  mono_compile_create_var (cfg, fsig->ret, OP_LOCAL);
2107         }
2108
2109         /* allocate local variables */
2110         new_locals_offset = cfg->num_varinfo;
2111         for (i = 0; i < cheader->num_locals; ++i)
2112                 mono_compile_create_var (cfg, cheader->locals [i], OP_LOCAL);
2113
2114         /* allocate starte and end blocks */
2115         sbblock = NEW_BBLOCK (cfg);
2116         sbblock->block_num = cfg->num_bblocks++;
2117         sbblock->real_offset = real_offset;
2118
2119         ebblock = NEW_BBLOCK (cfg);
2120         ebblock->block_num = cfg->num_bblocks++;
2121         ebblock->real_offset = real_offset;
2122
2123         costs = mono_method_to_ir (cfg, cmethod, sbblock, ebblock, new_locals_offset, rvar, dont_inline, sp, real_offset, *ip == CEE_CALLVIRT);
2124
2125         if (costs >= 0 && costs < 60) {
2126                 if (cfg->verbose_level > 2)
2127                         g_print ("INLINE END %s\n", mono_method_full_name (cmethod, TRUE));
2128
2129                 mono_jit_stats.inlined_methods++;
2130
2131                 /* always add some code to avoid block split failures */
2132                 MONO_INST_NEW (cfg, ins, CEE_NOP);
2133                 MONO_ADD_INS (bblock, ins);
2134                 ins->cil_code = ip;
2135
2136                 bblock->next_bb = sbblock;
2137                 link_bblock (cfg, bblock, sbblock);
2138
2139                 if (rvar) {
2140                         NEW_TEMPLOAD (cfg, ins, rvar->inst_c0);
2141                         *sp++ = ins;
2142                 }
2143                 *last_b = ebblock;
2144                 return costs + 1;
2145         } else {
2146                 if (cfg->verbose_level > 2)
2147                         g_print ("INLINE ABORTED %s\n", mono_method_full_name (cmethod, TRUE));
2148         }
2149         return 0;
2150 }
2151
2152 /*
2153  * Some of these comments may well be out-of-date.
2154  * Design decisions: we do a single pass over the IL code (and we do bblock
2155  * splitting/merging in the few cases when it's required: a back jump to an IL
2156  * address that was not already seen as bblock starting point).
2157  * Code is validated as we go (full verification is still better left to metadata/verify.c).
2158  * Complex operations are decomposed in simpler ones right away. We need to let the
2159  * arch-specific code peek and poke inside this process somehow (except when the
2160  * optimizations can take advantage of the full semantic info of coarse opcodes).
2161  * All the opcodes of the form opcode.s are 'normalized' to opcode.
2162  * MonoInst->opcode initially is the IL opcode or some simplification of that
2163  * (OP_LOAD, OP_STORE). The arch-specific code may rearrange it to an arch-specific
2164  * opcode with value bigger than OP_LAST.
2165  * At this point the IR can be handed over to an interpreter, a dumb code generator
2166  * or to the optimizing code generator that will translate it to SSA form.
2167  *
2168  * Profiling directed optimizations.
2169  * We may compile by default with few or no optimizations and instrument the code
2170  * or the user may indicate what methods to optimize the most either in a config file
2171  * or through repeated runs where the compiler applies offline the optimizations to
2172  * each method and then decides if it was worth it.
2173  *
2174  * TODO:
2175  * * consider using an array instead of an hash table (bb_hash)
2176  */
2177
2178 #define CHECK_TYPE(ins) if (!(ins)->type) goto unverified
2179 #define CHECK_STACK(num) if ((sp - stack_start) < (num)) goto unverified
2180 #define CHECK_STACK_OVF(num) if (((sp - stack_start) + (num)) > header->max_stack) goto unverified
2181
2182 /* offset from br.s -> br like opcodes */
2183 #define BIG_BRANCH_OFFSET 13
2184
2185 /*
2186  * mono_method_to_ir: translates IL into basic blocks containing trees
2187  */
2188 static int
2189 mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
2190                    int locals_offset, MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
2191                    guint inline_offset, gboolean is_virtual_call)
2192 {
2193         MonoInst *zero_int32, *zero_int64, *zero_ptr, *zero_obj, *zero_r8;
2194         MonoInst *ins, **sp, **stack_start;
2195         MonoBasicBlock *bblock, *tblock = NULL, *init_localsbb = NULL;
2196         GHashTable *bbhash;
2197         MonoMethod *cmethod;
2198         MonoInst **arg_array;
2199         MonoMethodHeader *header;
2200         MonoImage *image;
2201         guint32 token, ins_flag;
2202         MonoClass *klass;
2203         unsigned char *ip, *end, *target;
2204         static double r8_0 = 0.0;
2205         MonoMethodSignature *sig;
2206         MonoType **param_types;
2207         GList *bb_recheck = NULL, *tmp;
2208         int i, n, start_new_bblock, align;
2209         int num_calls = 0, inline_costs = 0;
2210         int *filter_lengths = NULL;
2211         int breakpoint_id = 0;
2212         guint real_offset;
2213
2214         image = method->klass->image;
2215         header = ((MonoMethodNormal *)method)->header;
2216         sig = method->signature;
2217         ip = (unsigned char*)header->code;
2218         end = ip + header->code_size;
2219         mono_jit_stats.cil_code_size += header->code_size;
2220
2221         if (cfg->method == method) {
2222                 real_offset = 0;
2223                 bbhash = cfg->bb_hash;
2224         } else {
2225                 real_offset = inline_offset;
2226                 bbhash = g_hash_table_new (g_direct_hash, NULL);
2227         }
2228
2229         dont_inline = g_list_prepend (dont_inline, method);
2230         if (cfg->method == method) {
2231
2232                 /* ENTRY BLOCK */
2233                 cfg->bb_entry = start_bblock = NEW_BBLOCK (cfg);
2234                 start_bblock->cil_code = NULL;
2235                 start_bblock->cil_length = 0;
2236                 start_bblock->block_num = cfg->num_bblocks++;
2237
2238                 /* EXIT BLOCK */
2239                 cfg->bb_exit = end_bblock = NEW_BBLOCK (cfg);
2240                 end_bblock->cil_code = NULL;
2241                 end_bblock->cil_length = 0;
2242                 end_bblock->block_num = cfg->num_bblocks++;
2243                 g_assert (cfg->num_bblocks == 2);
2244
2245                 arg_array = alloca (sizeof (MonoInst *) * (sig->hasthis + sig->param_count));
2246                 for (i = sig->hasthis + sig->param_count - 1; i >= 0; i--)
2247                         arg_array [i] = cfg->varinfo [i];
2248
2249                 if (mono_compile_aot)
2250                         cfg->opt |= MONO_OPT_SHARED;
2251
2252                 if (header->num_clauses) {
2253                         int size = sizeof (int) * header->num_clauses;
2254                         filter_lengths = alloca (size);
2255                         memset (filter_lengths, 0, size);
2256                 }
2257                 /* handle exception clauses */
2258                 for (i = 0; i < header->num_clauses; ++i) {
2259                         //unsigned char *p = ip;
2260                         MonoExceptionClause *clause = &header->clauses [i];
2261                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->try_offset);
2262                         tblock->real_offset = clause->try_offset;
2263                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->handler_offset);
2264                         tblock->real_offset = clause->handler_offset;
2265                         /*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);
2266                           while (p < end) {
2267                           g_print ("%s", mono_disasm_code_one (NULL, method, p, &p));
2268                           }*/
2269                         /* catch and filter blocks get the exception object on the stack */
2270                         if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE ||
2271                             clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2272                                 /* mostly like handle_stack_args (), but just sets the input args */
2273                                 /* g_print ("handling clause at IL_%04x\n", clause->handler_offset); */
2274                                 if (!cfg->exvar) {
2275                                         cfg->exvar = mono_compile_create_var (cfg, &mono_defaults.object_class->byval_arg, OP_LOCAL);
2276                                         /* prevent it from being register allocated */
2277                                         cfg->exvar->flags |= MONO_INST_INDIRECT;
2278                                 }
2279                                 tblock->in_scount = 1;
2280                                 tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
2281                                 tblock->in_stack [0] = cfg->exvar;
2282                                 if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2283                                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->token_or_filter);
2284                                         tblock->real_offset = clause->token_or_filter;
2285                                         tblock->in_scount = 1;
2286                                         tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
2287                                         tblock->in_stack [0] = cfg->exvar;
2288                                 }
2289                         }
2290                 }
2291
2292         } else {
2293                 arg_array = alloca (sizeof (MonoInst *) * (sig->hasthis + sig->param_count));
2294                 mono_save_args (cfg, start_bblock, sig, inline_args, arg_array);
2295         }
2296
2297         /* FIRST CODE BLOCK */
2298         bblock = NEW_BBLOCK (cfg);
2299         bblock->cil_code = ip;
2300
2301         ADD_BBLOCK (cfg, bbhash, bblock);
2302
2303         if (cfg->method == method) {
2304                 breakpoint_id = mono_debugger_method_has_breakpoint (method);
2305                 if (breakpoint_id && (mono_debug_format != MONO_DEBUG_FORMAT_DEBUGGER)) {
2306                         MONO_INST_NEW (cfg, ins, CEE_BREAK);
2307                         MONO_ADD_INS (bblock, ins);
2308                 }
2309         }
2310
2311         if ((header->init_locals || (cfg->method == method && (cfg->opt & MONO_OPT_SHARED)))) {
2312                 /* we use a separate basic block for the initialization code */
2313                 cfg->bb_init = init_localsbb = NEW_BBLOCK (cfg);
2314                 init_localsbb->real_offset = real_offset;
2315                 start_bblock->next_bb = init_localsbb;
2316                 init_localsbb->next_bb = bblock;
2317                 link_bblock (cfg, start_bblock, init_localsbb);
2318                 link_bblock (cfg, init_localsbb, bblock);
2319                 init_localsbb->block_num = cfg->num_bblocks++;
2320         } else {
2321                 start_bblock->next_bb = bblock;
2322                 link_bblock (cfg, start_bblock, bblock);
2323         }
2324
2325         mono_debug_init_method (cfg, bblock, breakpoint_id);
2326
2327         param_types = mono_mempool_alloc (cfg->mempool, sizeof (MonoType*) * (sig->hasthis + sig->param_count));
2328         if (sig->hasthis)
2329                 param_types [0] = method->klass->valuetype?&method->klass->this_arg:&method->klass->byval_arg;
2330         for (n = 0; n < sig->param_count; ++n)
2331                 param_types [n + sig->hasthis] = sig->params [n];
2332
2333         /* do this somewhere outside - not here */
2334         NEW_ICONST (cfg, zero_int32, 0);
2335         NEW_ICONST (cfg, zero_int64, 0);
2336         zero_int64->type = STACK_I8;
2337         NEW_PCONST (cfg, zero_ptr, 0);
2338         NEW_PCONST (cfg, zero_obj, 0);
2339         zero_obj->type = STACK_OBJ;
2340
2341         MONO_INST_NEW (cfg, zero_r8, OP_R8CONST);
2342         zero_r8->type = STACK_R8;
2343         zero_r8->inst_p0 = &r8_0;
2344
2345         /* add a check for this != NULL to inlined methods */
2346         if (is_virtual_call) {
2347                 MONO_INST_NEW (cfg, ins, OP_CHECK_THIS);
2348                 NEW_ARGLOAD (cfg, ins->inst_left, 0);
2349                 ins->cil_code = ip;
2350                 MONO_ADD_INS (bblock, ins);
2351         }
2352
2353         /* we use a spare stack slot in SWITCH and NEWOBJ and others */
2354         stack_start = sp = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * (header->max_stack + 1));
2355
2356         ins_flag = 0;
2357         start_new_bblock = 0;
2358         while (ip < end) {
2359
2360                 if (cfg->method == method)
2361                         real_offset = ip - header->code;
2362                 else
2363                         real_offset = inline_offset;
2364
2365                 if (start_new_bblock) {
2366                         bblock->cil_length = ip - bblock->cil_code;
2367                         if (start_new_bblock == 2) {
2368                                 g_assert (ip == tblock->cil_code);
2369                         } else {
2370                                 GET_BBLOCK (cfg, bbhash, tblock, ip);
2371                         }
2372                         bblock->next_bb = tblock;
2373                         bblock = tblock;
2374                         start_new_bblock = 0;
2375                         for (i = 0; i < bblock->in_scount; ++i) {
2376                                 NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
2377                                 *sp++ = ins;
2378                         }
2379                 } else {
2380                         if ((tblock = g_hash_table_lookup (bbhash, ip)) && (tblock != bblock)) {
2381                                 link_bblock (cfg, bblock, tblock);
2382                                 if (sp != stack_start) {
2383                                         handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2384                                         sp = stack_start;
2385                                 }
2386                                 bblock->next_bb = tblock;
2387                                 bblock = tblock;
2388                                 for (i = 0; i < bblock->in_scount; ++i) {
2389                                         NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
2390                                         *sp++ = ins;
2391                                 }
2392                         }
2393                 }
2394
2395                 if (cfg->verbose_level > 3)
2396                         g_print ("converting (in B%d: stack: %d) %s", bblock->block_num, sp-stack_start, mono_disasm_code_one (NULL, method, ip, NULL));
2397
2398                 switch (*ip) {
2399                 case CEE_NOP:
2400                         ++ip;
2401                         break;
2402                 case CEE_BREAK:
2403                         MONO_INST_NEW (cfg, ins, CEE_BREAK);
2404                         ins->cil_code = ip++;
2405                         MONO_ADD_INS (bblock, ins);
2406                         break;
2407                 case CEE_LDARG_0:
2408                 case CEE_LDARG_1:
2409                 case CEE_LDARG_2:
2410                 case CEE_LDARG_3:
2411                         CHECK_STACK_OVF (1);
2412                         n = (*ip)-CEE_LDARG_0;
2413                         NEW_ARGLOAD (cfg, ins, n);
2414                         ins->cil_code = ip++;
2415                         *sp++ = ins;
2416                         break;
2417                 case CEE_LDLOC_0:
2418                 case CEE_LDLOC_1:
2419                 case CEE_LDLOC_2:
2420                 case CEE_LDLOC_3:
2421                         CHECK_STACK_OVF (1);
2422                         n = (*ip)-CEE_LDLOC_0;
2423                         NEW_LOCLOAD (cfg, ins, n);
2424                         ins->cil_code = ip++;
2425                         *sp++ = ins;
2426                         break;
2427                 case CEE_STLOC_0:
2428                 case CEE_STLOC_1:
2429                 case CEE_STLOC_2:
2430                 case CEE_STLOC_3:
2431                         CHECK_STACK (1);
2432                         n = (*ip)-CEE_STLOC_0;
2433                         --sp;
2434                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2435                         NEW_LOCSTORE (cfg, ins, n, *sp);
2436                         ins->cil_code = ip;
2437                         if (ins->opcode == CEE_STOBJ) {
2438                                 NEW_LOCLOADA (cfg, ins, n);
2439                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2440                         } else
2441                                 MONO_ADD_INS (bblock, ins);
2442                         ++ip;
2443                         inline_costs += 1;
2444                         break;
2445                 case CEE_LDARG_S:
2446                         CHECK_STACK_OVF (1);
2447                         NEW_ARGLOAD (cfg, ins, ip [1]);
2448                         ins->cil_code = ip;
2449                         *sp++ = ins;
2450                         ip += 2;
2451                         break;
2452                 case CEE_LDARGA_S:
2453                         CHECK_STACK_OVF (1);
2454                         NEW_ARGLOADA (cfg, ins, ip [1]);
2455                         ins->cil_code = ip;
2456                         *sp++ = ins;
2457                         ip += 2;
2458                         break;
2459                 case CEE_STARG_S:
2460                         CHECK_STACK (1);
2461                         --sp;
2462                         NEW_ARGSTORE (cfg, ins, ip [1], *sp);
2463                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2464                         ins->cil_code = ip;
2465                         if (ins->opcode == CEE_STOBJ) {
2466                                 NEW_ARGLOADA (cfg, ins, ip [1]);
2467                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2468                         } else
2469                                 MONO_ADD_INS (bblock, ins);
2470                         ip += 2;
2471                         break;
2472                 case CEE_LDLOC_S:
2473                         CHECK_STACK_OVF (1);
2474                         NEW_LOCLOAD (cfg, ins, ip [1]);
2475                         ins->cil_code = ip;
2476                         *sp++ = ins;
2477                         ip += 2;
2478                         break;
2479                 case CEE_LDLOCA_S:
2480                         CHECK_STACK_OVF (1);
2481                         NEW_LOCLOADA (cfg, ins, ip [1]);
2482                         ins->cil_code = ip;
2483                         *sp++ = ins;
2484                         ip += 2;
2485                         break;
2486                 case CEE_STLOC_S:
2487                         CHECK_STACK (1);
2488                         --sp;
2489                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2490                         NEW_LOCSTORE (cfg, ins, ip [1], *sp);
2491                         ins->cil_code = ip;
2492                         if (ins->opcode == CEE_STOBJ) {
2493                                 NEW_LOCLOADA (cfg, ins, ip [1]);
2494                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2495                         } else
2496                                 MONO_ADD_INS (bblock, ins);
2497                         ip += 2;
2498                         inline_costs += 1;
2499                         break;
2500                 case CEE_LDNULL:
2501                         CHECK_STACK_OVF (1);
2502                         NEW_PCONST (cfg, ins, NULL);
2503                         ins->cil_code = ip;
2504                         ins->type = STACK_OBJ;
2505                         ++ip;
2506                         *sp++ = ins;
2507                         break;
2508                 case CEE_LDC_I4_M1:
2509                         CHECK_STACK_OVF (1);
2510                         NEW_ICONST (cfg, ins, -1);
2511                         ins->cil_code = ip;
2512                         ++ip;
2513                         *sp++ = ins;
2514                         break;
2515                 case CEE_LDC_I4_0:
2516                 case CEE_LDC_I4_1:
2517                 case CEE_LDC_I4_2:
2518                 case CEE_LDC_I4_3:
2519                 case CEE_LDC_I4_4:
2520                 case CEE_LDC_I4_5:
2521                 case CEE_LDC_I4_6:
2522                 case CEE_LDC_I4_7:
2523                 case CEE_LDC_I4_8:
2524                         CHECK_STACK_OVF (1);
2525                         NEW_ICONST (cfg, ins, (*ip) - CEE_LDC_I4_0);
2526                         ins->cil_code = ip;
2527                         ++ip;
2528                         *sp++ = ins;
2529                         break;
2530                 case CEE_LDC_I4_S:
2531                         CHECK_STACK_OVF (1);
2532                         ++ip;
2533                         NEW_ICONST (cfg, ins, *((signed char*)ip));
2534                         ins->cil_code = ip;
2535                         ++ip;
2536                         *sp++ = ins;
2537                         break;
2538                 case CEE_LDC_I4:
2539                         CHECK_STACK_OVF (1);
2540                         NEW_ICONST (cfg, ins, (gint32)read32 (ip + 1));
2541                         ins->cil_code = ip;
2542                         ip += 5;
2543                         *sp++ = ins;
2544                         break;
2545                 case CEE_LDC_I8:
2546                         CHECK_STACK_OVF (1);
2547                         MONO_INST_NEW (cfg, ins, OP_I8CONST);
2548                         ins->cil_code = ip;
2549                         ins->type = STACK_I8;
2550                         ++ip;
2551                         ins->inst_l = (gint64)read64 (ip);
2552                         ip += 8;
2553                         *sp++ = ins;
2554                         break;
2555                 case CEE_LDC_R4: {
2556                         float *f = g_malloc (sizeof (float));
2557                         CHECK_STACK_OVF (1);
2558                         MONO_INST_NEW (cfg, ins, OP_R4CONST);
2559                         ins->type = STACK_R8;
2560                         ++ip;
2561                         readr4 (ip, f);
2562                         ins->inst_p0 = f;
2563                         ip += 4;
2564                         *sp++ = ins;
2565                         break;
2566                 }
2567                 case CEE_LDC_R8: {
2568                         double *d = g_malloc (sizeof (double));
2569                         CHECK_STACK_OVF (1);
2570                         MONO_INST_NEW (cfg, ins, OP_R8CONST);
2571                         ins->type = STACK_R8;
2572                         ++ip;
2573                         readr8 (ip, d);
2574                         ins->inst_p0 = d;
2575                         ip += 8;
2576                         *sp++ = ins;
2577                         break;
2578                 }
2579                 case CEE_DUP: {
2580                         MonoInst *temp, *store;
2581                         CHECK_STACK (1);
2582                         CHECK_STACK_OVF (1);
2583                         sp--;
2584                         ins = *sp;
2585
2586                         /*
2587                          * small optimization: if the loaded value was from a local already,
2588                          * just load it twice.
2589                          */
2590                         if (ins->ssa_op == MONO_SSA_LOAD &&
2591                             (ins->inst_i0->opcode == OP_LOCAL || ins->inst_i0->opcode == OP_ARG)) {
2592                                 sp++;
2593                                 MONO_INST_NEW (cfg, temp, 0);
2594                                 *temp = *ins;
2595                                 temp->cil_code = ip;
2596                                 *sp++ = temp;
2597                         } else {
2598                                 temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
2599                                 temp->cil_code = ip;
2600                                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
2601                                 store->cil_code = ip;
2602                                 MONO_ADD_INS (bblock, store);
2603                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
2604                                 *sp++ = ins;
2605                                 ins->cil_code = ip;
2606                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
2607                                 *sp++ = ins;
2608                                 ins->cil_code = ip;
2609                         }
2610                         ++ip;
2611                         inline_costs += 2;
2612                         break;
2613                 }
2614                 case CEE_POP:
2615                         CHECK_STACK (1);
2616                         MONO_INST_NEW (cfg, ins, CEE_POP);
2617                         MONO_ADD_INS (bblock, ins);
2618                         ins->cil_code = ip++;
2619                         --sp;
2620                         ins->inst_i0 = *sp;
2621                         break;
2622                 case CEE_JMP:
2623                         if (stack_start != sp)
2624                                 goto unverified;
2625                         MONO_INST_NEW (cfg, ins, CEE_JMP);
2626                         token = read32 (ip + 1);
2627                         /* FIXME: check the signature matches */
2628                         cmethod = mono_get_method (image, token, NULL);
2629                         /*
2630                          * The current magic trampoline can't handle this
2631                          * apparently, so we compile the method right away.
2632                          * Later, we may need to fix the trampoline or use a different one.
2633                          */
2634                         ins->inst_p0 = mono_compile_method (cmethod);
2635                         MONO_ADD_INS (bblock, ins);
2636                         ip += 5;
2637                         start_new_bblock = 1;
2638                         break;
2639                 case CEE_CALLI:
2640                 case CEE_CALL:
2641                 case CEE_CALLVIRT: {
2642                         MonoInst *addr = NULL;
2643                         MonoMethodSignature *fsig = NULL;
2644                         int temp, array_rank = 0;
2645                         int virtual = *ip == CEE_CALLVIRT;
2646
2647                         token = read32 (ip + 1);
2648
2649                         if (*ip == CEE_CALLI) {
2650                                 cmethod = NULL;
2651                                 CHECK_STACK (1);
2652                                 --sp;
2653                                 addr = *sp;
2654                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
2655                                         fsig = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
2656                                 else
2657                                         fsig = mono_metadata_parse_signature (image, token);
2658
2659                                 n = fsig->param_count + fsig->hasthis;
2660
2661                         } else {
2662                                 cmethod = mono_get_method (image, token, NULL);
2663
2664                                 if (!cmethod->klass->inited)
2665                                         mono_class_init (cmethod->klass);
2666
2667                                 if (cmethod->signature->pinvoke) {
2668 #ifdef MONO_USE_EXC_TABLES
2669                                         if (mono_method_blittable (cmethod)) {
2670                                                 fsig = cmethod->signature;
2671                                         } else {
2672 #endif
2673                                                 MonoMethod *wrapper = mono_marshal_get_native_wrapper (cmethod);
2674                                                 fsig = wrapper->signature;
2675 #ifdef MONO_USE_EXC_TABLES
2676                                         }
2677 #endif
2678                                 } else {
2679                                         fsig = cmethod->signature;
2680                                 }
2681
2682                                 n = fsig->param_count + fsig->hasthis;
2683
2684                                 if (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL &&
2685                                     cmethod->klass->parent == mono_defaults.array_class) {
2686                                         array_rank = cmethod->klass->rank;
2687                                 }
2688
2689                                 if (cmethod->string_ctor)
2690                                         g_assert_not_reached ();
2691
2692                         }
2693
2694                         CHECK_STACK (n);
2695
2696                         //g_assert (!virtual || fsig->hasthis);
2697
2698                         sp -= n;
2699
2700                         if (cmethod && (cfg->opt & MONO_OPT_INTRINS) && (ins = mini_get_opcode_for_method (cfg, cmethod, fsig, sp))) {
2701                                 ins->cil_code = ip;
2702
2703                                 if (MONO_TYPE_IS_VOID (fsig->ret)) {
2704                                         MONO_ADD_INS (bblock, ins);
2705                                 } else {
2706                                         type_to_eval_stack_type (fsig->ret, ins);
2707                                         *sp = ins;
2708                                         sp++;
2709                                 }
2710
2711                                 ip += 5;
2712                                 break;
2713                         }
2714
2715                         if ((cfg->opt & MONO_OPT_INLINE) && cmethod &&
2716                             (!virtual || !(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) || (cmethod->flags & METHOD_ATTRIBUTE_FINAL)) &&
2717                             mono_method_check_inlining (cmethod) &&
2718                             !g_list_find (dont_inline, cmethod)) {
2719                                 int costs;
2720                                 MonoBasicBlock *ebblock;
2721
2722                                 if ((costs = inline_method (cfg, cmethod, fsig, bblock, sp, ip, real_offset, dont_inline, &ebblock))) {
2723                                         ip += 5;
2724                                         real_offset += 5;
2725
2726                                         GET_BBLOCK (cfg, bbhash, bblock, ip);
2727                                         ebblock->next_bb = bblock;
2728                                         link_bblock (cfg, ebblock, bblock);
2729
2730                                         if (!MONO_TYPE_IS_VOID (fsig->ret))
2731                                                 sp++;
2732
2733                                         /* indicates start of a new block, and triggers a load of all
2734                                            stack arguments at bb boundarie */
2735                                         bblock = ebblock;
2736
2737                                         inline_costs += costs;
2738                                         break;
2739                                 }
2740                         }
2741
2742                         inline_costs += 10 * num_calls++;
2743                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2744
2745                         /* tail recursion elimination */
2746                         if ((cfg->opt & MONO_OPT_TAILC) && *ip == CEE_CALL && cmethod == cfg->method && ip [5] == CEE_RET) {
2747                                 gboolean has_vtargs = FALSE;
2748                                 int i;
2749
2750                                 /* keep it simple */
2751                                 for (i =  fsig->param_count - 1; i >= 0; i--) {
2752                                         if (MONO_TYPE_ISSTRUCT (cmethod->signature->params [i]))
2753                                                 has_vtargs = TRUE;
2754                                 }
2755
2756                                 if (!has_vtargs) {
2757                                         for (i = 0; i < n; ++i) {
2758                                                 NEW_ARGSTORE (cfg, ins, i, sp [i]);
2759                                                 ins->cil_code = ip;
2760                                                 MONO_ADD_INS (bblock, ins);
2761                                         }
2762                                         MONO_INST_NEW (cfg, ins, CEE_BR);
2763                                         ins->cil_code = ip;
2764                                         MONO_ADD_INS (bblock, ins);
2765                                         tblock = start_bblock->out_bb [0];
2766                                         link_bblock (cfg, bblock, tblock);
2767                                         ins->inst_target_bb = tblock;
2768                                         start_new_bblock = 1;
2769                                         ip += 5;
2770
2771                                         if (!MONO_TYPE_IS_VOID (fsig->ret)) {
2772                                                 /* just create a dummy - the value is never used */
2773                                                 ins = mono_compile_create_var (cfg, fsig->ret, OP_LOCAL);
2774                                                 NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
2775                                                 sp++;
2776                                         }
2777
2778                                         break;
2779                                 }
2780                         }
2781
2782                         if (*ip == CEE_CALLI) {
2783
2784                                 if ((temp = mono_emit_calli (cfg, bblock, fsig, sp, addr, ip)) != -1) {
2785                                         NEW_TEMPLOAD (cfg, *sp, temp);
2786                                         sp++;
2787                                 }
2788
2789                         } else if (array_rank) {
2790                                 MonoInst *addr;
2791
2792                                 if (strcmp (cmethod->name, "Set") == 0) { /* array Set */
2793                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, TRUE);
2794                                         NEW_INDSTORE (cfg, ins, addr, sp [fsig->param_count], fsig->params [fsig->param_count - 1]);
2795                                         ins->cil_code = ip;
2796                                         if (ins->opcode == CEE_STOBJ) {
2797                                                 handle_stobj (cfg, bblock, addr, sp [fsig->param_count], ip, mono_class_from_mono_type (fsig->params [fsig->param_count-1]), FALSE, FALSE);
2798                                         } else {
2799                                                 MONO_ADD_INS (bblock, ins);
2800                                         }
2801
2802                                 } else if (strcmp (cmethod->name, "Get") == 0) { /* array Get */
2803                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, FALSE);
2804                                         NEW_INDLOAD (cfg, ins, addr, fsig->ret);
2805                                         ins->cil_code = ip;
2806
2807                                         *sp++ = ins;
2808                                 } else if (strcmp (cmethod->name, "Address") == 0) { /* array Address */
2809                                         addr = mini_get_ldelema_ins (cfg, bblock, cmethod, sp, ip, FALSE);
2810                                         *sp++ = addr;
2811                                 } else {
2812                                         g_assert_not_reached ();
2813                                 }
2814
2815                         } else {
2816                                 if (0 && CODE_IS_STLOC (ip + 5) && (!MONO_TYPE_ISSTRUCT (fsig->ret)) && (!MONO_TYPE_IS_VOID (fsig->ret) || cmethod->string_ctor)) {
2817                                         /* no need to spill */
2818                                         ins = (MonoInst*)mono_emit_method_call (cfg, bblock, cmethod, fsig, sp, ip, virtual ? sp [0] : NULL);
2819                                         *sp++ = ins;
2820                                 } else {
2821                                         if ((temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, sp, ip, virtual ? sp [0] : NULL)) != -1) {
2822                                                 NEW_TEMPLOAD (cfg, *sp, temp);
2823                                                 sp++;
2824                                         }
2825                                 }
2826                         }
2827
2828                         ip += 5;
2829                         break;
2830                 }
2831                 case CEE_RET:
2832                         if (cfg->method != method) {
2833                                 /* return from inlined methode */
2834                                 if (return_var) {
2835                                         MonoInst *store;
2836                                         CHECK_STACK (1);
2837                                         --sp;
2838                                         //g_assert (returnvar != -1);
2839                                         NEW_TEMPSTORE (cfg, store, return_var->inst_c0, *sp);
2840                                         store->cil_code = sp [0]->cil_code;
2841                                         if (store->opcode == CEE_STOBJ) {
2842                                                 g_assert_not_reached ();
2843                                                 NEW_TEMPLOADA (cfg, store, return_var->inst_c0);
2844                                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, return_var->klass, FALSE, FALSE);
2845                                         } else
2846                                                 MONO_ADD_INS (bblock, store);
2847                                 }
2848                         } else {
2849                                 if (cfg->ret) {
2850                                         g_assert (!return_var);
2851                                         CHECK_STACK (1);
2852                                         --sp;
2853                                         MONO_INST_NEW (cfg, ins, CEE_NOP);
2854                                         ins->opcode = mono_type_to_stind (method->signature->ret);
2855                                         if (ins->opcode == CEE_STOBJ) {
2856                                                 NEW_RETLOADA (cfg, ins);
2857                                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2858                                         } else {
2859                                                 ins->opcode = OP_SETRET;
2860                                                 ins->cil_code = ip;
2861                                                 ins->inst_i0 = *sp;;
2862                                                 ins->inst_i1 = NULL;
2863                                                 MONO_ADD_INS (bblock, ins);
2864                                         }
2865                                 }
2866                         }
2867                         if (sp != stack_start)
2868                                 goto unverified;
2869                         MONO_INST_NEW (cfg, ins, CEE_BR);
2870                         ins->cil_code = ip++;
2871                         ins->inst_target_bb = end_bblock;
2872                         MONO_ADD_INS (bblock, ins);
2873                         link_bblock (cfg, bblock, end_bblock);
2874                         start_new_bblock = 1;
2875                         break;
2876                 case CEE_BR_S:
2877                         MONO_INST_NEW (cfg, ins, CEE_BR);
2878                         ins->cil_code = ip++;
2879                         MONO_ADD_INS (bblock, ins);
2880                         target = ip + 1 + (signed char)(*ip);
2881                         ++ip;
2882                         GET_BBLOCK (cfg, bbhash, tblock, target);
2883                         link_bblock (cfg, bblock, tblock);
2884                         CHECK_BBLOCK (target, ip, tblock);
2885                         ins->inst_target_bb = tblock;
2886                         if (sp != stack_start) {
2887                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2888                                 sp = stack_start;
2889                         }
2890                         start_new_bblock = 1;
2891                         inline_costs += 10;
2892                         break;
2893                 case CEE_BRFALSE_S:
2894                 case CEE_BRTRUE_S:
2895                         CHECK_STACK (1);
2896                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
2897                         ins->cil_code = ip++;
2898                         target = ip + 1 + *(signed char*)ip;
2899                         ip++;
2900                         ADD_UNCOND (ins->opcode == CEE_BRTRUE);
2901                         if (sp != stack_start) {
2902                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2903                                 sp = stack_start;
2904                         }
2905                         inline_costs += 10;
2906                         break;
2907                 case CEE_BEQ_S:
2908                 case CEE_BGE_S:
2909                 case CEE_BGT_S:
2910                 case CEE_BLE_S:
2911                 case CEE_BLT_S:
2912                 case CEE_BNE_UN_S:
2913                 case CEE_BGE_UN_S:
2914                 case CEE_BGT_UN_S:
2915                 case CEE_BLE_UN_S:
2916                 case CEE_BLT_UN_S:
2917                         CHECK_STACK (2);
2918                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
2919                         ins->cil_code = ip++;
2920                         target = ip + 1 + *(signed char*)ip;
2921                         ip++;
2922                         ADD_BINCOND (NULL);
2923                         if (sp != stack_start) {
2924                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2925                                 sp = stack_start;
2926                         }
2927                         inline_costs += 10;
2928                         break;
2929                 case CEE_BR:
2930                         MONO_INST_NEW (cfg, ins, CEE_BR);
2931                         ins->cil_code = ip++;
2932                         MONO_ADD_INS (bblock, ins);
2933                         target = ip + 4 + (gint32)read32(ip);
2934                         ip += 4;
2935                         GET_BBLOCK (cfg, bbhash, tblock, target);
2936                         link_bblock (cfg, bblock, tblock);
2937                         CHECK_BBLOCK (target, ip, tblock);
2938                         ins->inst_target_bb = tblock;
2939                         if (sp != stack_start) {
2940                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2941                                 sp = stack_start;
2942                         }
2943                         start_new_bblock = 1;
2944                         inline_costs += 10;
2945                         break;
2946                 case CEE_BRFALSE:
2947                 case CEE_BRTRUE:
2948                         CHECK_STACK (1);
2949                         MONO_INST_NEW (cfg, ins, *ip);
2950                         ins->cil_code = ip++;
2951                         target = ip + 4 + (gint32)read32(ip);
2952                         ip += 4;
2953                         ADD_UNCOND(ins->opcode == CEE_BRTRUE);
2954                         if (sp != stack_start) {
2955                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2956                                 sp = stack_start;
2957                         }
2958                         inline_costs += 10;
2959                         break;
2960                 case CEE_BEQ:
2961                 case CEE_BGE:
2962                 case CEE_BGT:
2963                 case CEE_BLE:
2964                 case CEE_BLT:
2965                 case CEE_BNE_UN:
2966                 case CEE_BGE_UN:
2967                 case CEE_BGT_UN:
2968                 case CEE_BLE_UN:
2969                 case CEE_BLT_UN:
2970                         CHECK_STACK (2);
2971                         MONO_INST_NEW (cfg, ins, *ip);
2972                         ins->cil_code = ip++;
2973                         target = ip + 4 + (gint32)read32(ip);
2974                         ip += 4;
2975                         ADD_BINCOND(NULL);
2976                         if (sp != stack_start) {
2977                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2978                                 sp = stack_start;
2979                         }
2980                         inline_costs += 10;
2981                         break;
2982                 case CEE_SWITCH:
2983                         CHECK_STACK (1);
2984                         n = read32 (ip + 1);
2985                         MONO_INST_NEW (cfg, ins, *ip);
2986                         --sp;
2987                         ins->inst_left = *sp;
2988                         if (ins->inst_left->type != STACK_I4) goto unverified;
2989                         ins->cil_code = ip;
2990                         ip += 5;
2991                         target = ip + n * sizeof (guint32);
2992                         MONO_ADD_INS (bblock, ins);
2993                         GET_BBLOCK (cfg, bbhash, tblock, target);
2994                         link_bblock (cfg, bblock, tblock);
2995                         ins->klass = GUINT_TO_POINTER (n);
2996                         ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (n + 1));
2997                         ins->inst_many_bb [n] = tblock;
2998
2999                         for (i = 0; i < n; ++i) {
3000                                 GET_BBLOCK (cfg, bbhash, tblock, target + (gint32)read32(ip));
3001                                 link_bblock (cfg, bblock, tblock);
3002                                 ins->inst_many_bb [i] = tblock;
3003                                 ip += 4;
3004                         }
3005                         /* FIXME: handle stack args */
3006                         inline_costs += 20;
3007                         break;
3008                 case CEE_LDIND_I1:
3009                 case CEE_LDIND_U1:
3010                 case CEE_LDIND_I2:
3011                 case CEE_LDIND_U2:
3012                 case CEE_LDIND_I4:
3013                 case CEE_LDIND_U4:
3014                 case CEE_LDIND_I8:
3015                 case CEE_LDIND_I:
3016                 case CEE_LDIND_R4:
3017                 case CEE_LDIND_R8:
3018                 case CEE_LDIND_REF:
3019                         CHECK_STACK (1);
3020                         MONO_INST_NEW (cfg, ins, *ip);
3021                         ins->cil_code = ip;
3022                         --sp;
3023                         ins->inst_i0 = *sp;
3024                         *sp++ = ins;
3025                         ins->type = ldind_type [*ip - CEE_LDIND_I1];
3026                         ins->flags |= ins_flag;
3027                         ins_flag = 0;
3028                         ++ip;
3029                         break;
3030                 case CEE_STIND_REF:
3031                 case CEE_STIND_I1:
3032                 case CEE_STIND_I2:
3033                 case CEE_STIND_I4:
3034                 case CEE_STIND_I8:
3035                 case CEE_STIND_R4:
3036                 case CEE_STIND_R8:
3037                         CHECK_STACK (2);
3038                         MONO_INST_NEW (cfg, ins, *ip);
3039                         ins->cil_code = ip++;
3040                         sp -= 2;
3041                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3042                         MONO_ADD_INS (bblock, ins);
3043                         ins->inst_i0 = sp [0];
3044                         ins->inst_i1 = sp [1];
3045                         ins->flags |= ins_flag;
3046                         ins_flag = 0;
3047                         inline_costs += 1;
3048                         break;
3049                 case CEE_ADD:
3050                 case CEE_SUB:
3051                 case CEE_MUL:
3052                 case CEE_DIV:
3053                 case CEE_DIV_UN:
3054                 case CEE_REM:
3055                 case CEE_REM_UN:
3056                 case CEE_AND:
3057                 case CEE_OR:
3058                 case CEE_XOR:
3059                 case CEE_SHL:
3060                 case CEE_SHR:
3061                 case CEE_SHR_UN:
3062                         CHECK_STACK (2);
3063                         ADD_BINOP (*ip);
3064                         ip++;
3065                         break;
3066                 case CEE_NEG:
3067                 case CEE_NOT:
3068                 case CEE_CONV_I1:
3069                 case CEE_CONV_I2:
3070                 case CEE_CONV_I4:
3071                 case CEE_CONV_I8:
3072                 case CEE_CONV_R4:
3073                 case CEE_CONV_R8:
3074                 case CEE_CONV_U4:
3075                 case CEE_CONV_U8:
3076                 case CEE_CONV_OVF_I8:
3077                 case CEE_CONV_OVF_U8:
3078                 case CEE_CONV_R_UN:
3079                         CHECK_STACK (1);
3080                         ADD_UNOP (*ip);
3081                         ip++;
3082                         break;
3083                 case CEE_CONV_OVF_I4:
3084                 case CEE_CONV_OVF_I1:
3085                 case CEE_CONV_OVF_I2:
3086                 case CEE_CONV_OVF_I:
3087                 case CEE_CONV_OVF_U:
3088                         CHECK_STACK (1);
3089
3090                         if (sp [-1]->type == STACK_R8) {
3091                                 ADD_UNOP (CEE_CONV_OVF_I8);
3092                                 ADD_UNOP (*ip);
3093                         } else {
3094                                 ADD_UNOP (*ip);
3095                         }
3096
3097                         ip++;
3098                         break;
3099                 case CEE_CONV_OVF_U1:
3100                 case CEE_CONV_OVF_U2:
3101                 case CEE_CONV_OVF_U4:
3102                         CHECK_STACK (1);
3103
3104                         if (sp [-1]->type == STACK_R8) {
3105                                 ADD_UNOP (CEE_CONV_OVF_U8);
3106                                 ADD_UNOP (*ip);
3107                         } else {
3108                                 ADD_UNOP (*ip);
3109                         }
3110
3111                         ip++;
3112                         break;
3113                 case CEE_CONV_OVF_I1_UN:
3114                 case CEE_CONV_OVF_I2_UN:
3115                 case CEE_CONV_OVF_I4_UN:
3116                 case CEE_CONV_OVF_I8_UN:
3117                 case CEE_CONV_OVF_U1_UN:
3118                 case CEE_CONV_OVF_U2_UN:
3119                 case CEE_CONV_OVF_U4_UN:
3120                 case CEE_CONV_OVF_U8_UN:
3121                 case CEE_CONV_OVF_I_UN:
3122                 case CEE_CONV_OVF_U_UN:
3123                         CHECK_STACK (1);
3124                         ADD_UNOP (*ip);
3125                         ip++;
3126                         break;
3127                 case CEE_CPOBJ:
3128                         g_error ("opcode 0x%02x not handled", *ip);
3129                         break;
3130                 case CEE_LDOBJ: {
3131                         MonoInst *iargs [3];
3132                         CHECK_STACK (1);
3133                         --sp;
3134                         token = read32 (ip + 1);
3135                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3136                                 klass = mono_method_get_wrapper_data (method, token);
3137                         else
3138                                 klass = mono_class_get (image, token);
3139
3140                         mono_class_init (klass);
3141                         n = mono_class_value_size (klass, NULL);
3142                         ins = mono_compile_create_var (cfg, &klass->byval_arg, OP_LOCAL);
3143                         NEW_TEMPLOADA (cfg, iargs [0], ins->inst_c0);
3144                         if ((cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 5) {
3145                                 MonoInst *copy;
3146                                 MONO_INST_NEW (cfg, copy, OP_MEMCPY);
3147                                 copy->inst_left = iargs [0];
3148                                 copy->inst_right = *sp;
3149                                 copy->cil_code = ip;
3150                                 copy->unused = n;
3151                                 MONO_ADD_INS (bblock, copy);
3152                         } else {
3153                                 iargs [1] = *sp;
3154                                 NEW_ICONST (cfg, iargs [2], n);
3155                                 iargs [2]->cil_code = ip;
3156
3157                                 mono_emit_jit_icall (cfg, bblock, helper_memcpy, iargs, ip);
3158                         }
3159                         NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
3160                         ++sp;
3161                         ip += 5;
3162                         inline_costs += 1;
3163                         break;
3164                 }
3165                 case CEE_LDSTR:
3166                         CHECK_STACK_OVF (1);
3167                         n = read32 (ip + 1);
3168
3169                         if (mono_compile_aot) {
3170                                 cfg->ldstr_list = g_list_prepend (cfg->ldstr_list, (gpointer)n);
3171                         }
3172
3173                         if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot) {
3174                                 int temp;
3175                                 MonoInst *iargs [3];
3176                                 NEW_TEMPLOAD (cfg, iargs [0], mono_get_domainvar (cfg)->inst_c0);
3177                                 NEW_IMAGECONST (cfg, iargs [1], image);
3178                                 NEW_ICONST (cfg, iargs [2], mono_metadata_token_index (n));
3179                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldstr, iargs, ip);
3180                                 NEW_TEMPLOAD (cfg, *sp, temp);
3181                                 mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
3182                         } else {
3183                                 NEW_PCONST (cfg, ins, NULL);
3184                                 ins->cil_code = ip;
3185                                 ins->type = STACK_OBJ;
3186                                 ins->inst_p0 = mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
3187                                 *sp = ins;
3188                         }
3189                         sp++;
3190                         ip += 5;
3191                         break;
3192                 case CEE_NEWOBJ: {
3193                         MonoInst *iargs [2];
3194                         int temp;
3195
3196                         token = read32 (ip + 1);
3197                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
3198                                 cmethod = mono_method_get_wrapper_data (method, token);
3199                         } else
3200                                 cmethod = mono_get_method (image, token, NULL);
3201
3202                         mono_class_init (cmethod->klass);
3203
3204                         n = cmethod->signature->param_count;
3205                         CHECK_STACK (n);
3206
3207                         /* move the args to allow room for 'this' in the first position */
3208                         while (n--) {
3209                                 --sp;
3210                                 sp [1] = sp [0];
3211                         }
3212
3213                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3214
3215
3216                         if (cmethod->klass->parent == mono_defaults.array_class) {
3217                                 NEW_METHODCONST (cfg, *sp, cmethod);
3218                                 temp = mono_emit_native_call (cfg, bblock, mono_array_new_va, cmethod->signature, sp, ip, FALSE);
3219
3220                         } else if (cmethod->string_ctor) {
3221                                 /* we simply pass a null pointer */
3222                                 NEW_PCONST (cfg, *sp, NULL);
3223                                 /* now call the string ctor */
3224                                 temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, sp, ip, NULL);
3225                         } else {
3226                                 if (cmethod->klass->valuetype) {
3227                                         iargs [0] = mono_compile_create_var (cfg, &cmethod->klass->byval_arg, OP_LOCAL);
3228                                         temp = iargs [0]->inst_c0;
3229                                         NEW_TEMPLOADA (cfg, *sp, temp);
3230                                 } else {
3231                                         if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot) {
3232                                                 NEW_DOMAINCONST (cfg, iargs [0]);
3233                                                 NEW_CLASSCONST (cfg, iargs [1], cmethod->klass);
3234
3235                                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
3236                                         } else {
3237                                                 MonoVTable *vtable = mono_class_vtable (cfg->domain, cmethod->klass);
3238                                                 NEW_PCONST (cfg, iargs [0], vtable);
3239                                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new_specific, iargs, ip);
3240                                         }
3241                                         NEW_TEMPLOAD (cfg, *sp, temp);
3242                                 }
3243
3244                                 if ((cfg->opt & MONO_OPT_INLINE) && cmethod &&
3245                                     mono_method_check_inlining (cmethod) &&
3246                                     !mono_class_is_subclass_of (cmethod->klass, mono_defaults.exception_class, FALSE) &&
3247                                     !g_list_find (dont_inline, cmethod)) {
3248                                         int costs;
3249                                         MonoBasicBlock *ebblock;
3250                                         if ((costs = inline_method (cfg, cmethod, cmethod->signature, bblock, sp, ip, real_offset, dont_inline, &ebblock))) {
3251
3252                                                 ip += 5;
3253                                                 real_offset += 5;
3254
3255                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
3256                                                 ebblock->next_bb = bblock;
3257                                                 link_bblock (cfg, ebblock, bblock);
3258
3259                                                 NEW_TEMPLOAD (cfg, *sp, temp);
3260                                                 sp++;
3261
3262                                                 /* indicates start of a new block, and triggers a load
3263                                                    of all stack arguments at bb boundarie */
3264                                                 bblock = ebblock;
3265
3266                                                 inline_costs += costs;
3267                                                 break;
3268
3269                                         } else {
3270                                                 mono_emit_method_call_spilled (cfg, bblock, cmethod, sp, ip, sp[0]);
3271                                         }
3272                                 } else {
3273                                         /* now call the actual ctor */
3274                                         mono_emit_method_call_spilled (cfg, bblock, cmethod, sp, ip, sp[0]);
3275                                 }
3276                         }
3277
3278                         NEW_TEMPLOAD (cfg, *sp, temp);
3279                         sp++;
3280
3281                         ip += 5;
3282                         inline_costs += 5;
3283                         break;
3284                 }
3285                 case CEE_ISINST:
3286                         CHECK_STACK (1);
3287                         MONO_INST_NEW (cfg, ins, *ip);
3288                         --sp;
3289                         klass = mono_class_get (image, read32 (ip + 1));
3290                         mono_class_init (klass);
3291                         ins->type = STACK_OBJ;
3292                         ins->inst_left = *sp;
3293                         ins->inst_newa_class = klass;
3294                         ins->cil_code = ip;
3295                         ip += 5;
3296                         *sp++ = ins;
3297                         break;
3298                 case CEE_UNBOX: {
3299                         MonoInst *add, *vtoffset;
3300
3301                         CHECK_STACK (1);
3302                         --sp;
3303                         token = read32 (ip + 1);
3304                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3305                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3306                         else
3307                                 klass = mono_class_get (image, token);
3308                         mono_class_init (klass);
3309
3310
3311                         MONO_INST_NEW (cfg, ins, OP_UNBOXCAST);
3312                         ins->type = STACK_OBJ;
3313                         ins->inst_left = *sp;
3314                         ins->klass = klass;
3315                         ins->inst_newa_class = klass;
3316                         ins->cil_code = ip;
3317
3318                         MONO_INST_NEW (cfg, add, CEE_ADD);
3319                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
3320                         add->inst_left = ins;
3321                         add->inst_right = vtoffset;
3322                         add->type = STACK_MP;
3323                         *sp++ = add;
3324                         ip += 5;
3325                         inline_costs += 2;
3326                         break;
3327                 }
3328                 case CEE_CASTCLASS:
3329                         CHECK_STACK (1);
3330                         MONO_INST_NEW (cfg, ins, *ip);
3331                         --sp;
3332                         klass = mono_class_get (image, read32 (ip + 1));
3333                         mono_class_init (klass);
3334                         ins->type = STACK_OBJ;
3335                         ins->inst_left = *sp;
3336                         ins->klass = klass;
3337                         ins->inst_newa_class = klass;
3338                         ins->cil_code = ip;
3339                         ip += 5;
3340                         *sp++ = ins;
3341                         break;
3342                 case CEE_THROW:
3343                         CHECK_STACK (1);
3344                         MONO_INST_NEW (cfg, ins, *ip);
3345                         --sp;
3346                         ins->inst_left = *sp;
3347                         ins->cil_code = ip++;
3348                         MONO_ADD_INS (bblock, ins);
3349                         sp = stack_start;
3350                         start_new_bblock = 1;
3351                         break;
3352                 case CEE_LDFLD:
3353                 case CEE_LDFLDA:
3354                 case CEE_STFLD: {
3355                         MonoInst *offset_ins;
3356                         MonoClassField *field;
3357                         MonoBasicBlock *ebblock;
3358                         int costs;
3359                         guint foffset;
3360
3361                         if (*ip == CEE_STFLD) {
3362                                 CHECK_STACK (2);
3363                                 sp -= 2;
3364                         } else {
3365                                 CHECK_STACK (1);
3366                                 --sp;
3367                         }
3368                         // FIXME: enable this test later.
3369                         //if (sp [0]->type != STACK_OBJ && sp [0]->type != STACK_MP)
3370                         //      goto unverified;
3371                         token = read32 (ip + 1);
3372                         field = mono_field_from_token (image, token, &klass);
3373                         mono_class_init (klass);
3374
3375                         foffset = klass->valuetype? field->offset - sizeof (MonoObject): field->offset;
3376                         /* FIXME: mark instructions for use in SSA */
3377                         if (*ip == CEE_STFLD) {
3378                                 if (klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) {
3379                                         MonoMethod *stfld_wrapper = mono_marshal_get_stfld_wrapper (field->type);
3380                                         MonoInst *iargs [5];
3381
3382                                         iargs [0] = sp [0];
3383                                         NEW_CLASSCONST (cfg, iargs [1], klass);
3384                                         NEW_FIELDCONST (cfg, iargs [2], field);
3385                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) :
3386                                                     field->offset);
3387                                         iargs [4] = sp [1];
3388
3389                                         if (cfg->opt & MONO_OPT_INLINE) {
3390                                                 costs = inline_method (cfg, stfld_wrapper, stfld_wrapper->signature, bblock,
3391                                                                        iargs, ip, real_offset, dont_inline, &ebblock);
3392                                                 g_assert (costs > 0);
3393
3394                                                 ip += 5;
3395                                                 real_offset += 5;
3396
3397                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
3398                                                 ebblock->next_bb = bblock;
3399                                                 link_bblock (cfg, ebblock, bblock);
3400
3401                                                 /* indicates start of a new block, and triggers a load
3402                                                    of all stack arguments at bb boundarie */
3403                                                 bblock = ebblock;
3404
3405                                                 inline_costs += costs;
3406                                                 break;
3407                                         } else {
3408                                                 mono_emit_method_call_spilled (cfg, bblock, stfld_wrapper, iargs, ip, NULL);
3409                                         }
3410                                 } else {
3411                                         MonoInst *store;
3412                                         NEW_ICONST (cfg, offset_ins, foffset);
3413                                         MONO_INST_NEW (cfg, ins, CEE_ADD);
3414                                         ins->cil_code = ip;
3415                                         ins->inst_left = *sp;
3416                                         ins->inst_right = offset_ins;
3417                                         ins->type = STACK_MP;
3418
3419                                         MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
3420                                         store->cil_code = ip;
3421                                         store->inst_left = ins;
3422                                         store->inst_right = sp [1];
3423                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3424                                         store->flags |= ins_flag;
3425                                         ins_flag = 0;
3426                                         if (store->opcode == CEE_STOBJ) {
3427                                                 handle_stobj (cfg, bblock, ins, sp [1], ip,
3428                                                               mono_class_from_mono_type (field->type), FALSE, FALSE);
3429                                         } else
3430                                                 MONO_ADD_INS (bblock, store);
3431                                 }
3432                         } else {
3433                                 if (klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) {
3434                                         /* fixme: we need to inline that call somehow */
3435                                         MonoMethod *ldfld_wrapper = mono_marshal_get_ldfld_wrapper (field->type);
3436                                         MonoInst *iargs [4];
3437                                         int temp;
3438
3439                                         iargs [0] = sp [0];
3440                                         NEW_CLASSCONST (cfg, iargs [1], klass);
3441                                         NEW_FIELDCONST (cfg, iargs [2], field);
3442                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
3443                                         if (cfg->opt & MONO_OPT_INLINE) {
3444                                                 costs = inline_method (cfg, ldfld_wrapper, ldfld_wrapper->signature, bblock,
3445                                                                        iargs, ip, real_offset, dont_inline, &ebblock);
3446                                                 g_assert (costs > 0);
3447
3448                                                 ip += 5;
3449                                                 real_offset += 5;
3450
3451                                                 GET_BBLOCK (cfg, bbhash, bblock, ip);
3452                                                 ebblock->next_bb = bblock;
3453                                                 link_bblock (cfg, ebblock, bblock);
3454
3455                                                 temp = iargs [0]->inst_i0->inst_c0;
3456
3457                                                 if (*ip == CEE_LDFLDA) {
3458                                                         /* not sure howto handle this */
3459                                                         NEW_TEMPLOADA (cfg, *sp, temp);
3460                                                 } else {
3461                                                         NEW_TEMPLOAD (cfg, *sp, temp);
3462                                                 }
3463                                                 sp++;
3464
3465                                                 /* indicates start of a new block, and triggers a load of
3466                                                    all stack arguments at bb boundarie */
3467                                                 bblock = ebblock;
3468
3469                                                 inline_costs += costs;
3470                                                 break;
3471                                         } else {
3472                                                 temp = mono_emit_method_call_spilled (cfg, bblock, ldfld_wrapper, iargs, ip, NULL);
3473                                                 if (*ip == CEE_LDFLDA) {
3474                                                         /* not sure howto handle this */
3475                                                         NEW_TEMPLOADA (cfg, *sp, temp);
3476                                                 } else {
3477                                                         NEW_TEMPLOAD (cfg, *sp, temp);
3478                                                 }
3479                                                 sp++;
3480                                         }
3481                                 } else {
3482                                         NEW_ICONST (cfg, offset_ins, foffset);
3483                                         MONO_INST_NEW (cfg, ins, CEE_ADD);
3484                                         ins->cil_code = ip;
3485                                         ins->inst_left = *sp;
3486                                         ins->inst_right = offset_ins;
3487                                         ins->type = STACK_MP;
3488
3489                                         if (*ip == CEE_LDFLDA) {
3490                                                 *sp++ = ins;
3491                                         } else {
3492                                                 MonoInst *load;
3493                                                 MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
3494                                                 type_to_eval_stack_type (field->type, load);
3495                                                 load->cil_code = ip;
3496                                                 load->inst_left = ins;
3497                                                 load->flags |= ins_flag;
3498                                                 ins_flag = 0;
3499                                                 *sp++ = load;
3500                                         }
3501                                 }
3502                         }
3503                         ip += 5;
3504                         break;
3505                 }
3506                 case CEE_LDSFLD:
3507                 case CEE_LDSFLDA:
3508                 case CEE_STSFLD: {
3509                         MonoClassField *field;
3510                         MonoVTable *vtable;
3511
3512                         token = read32 (ip + 1);
3513
3514                         field = mono_field_from_token (image, token, &klass);
3515                         mono_class_init (klass);
3516
3517                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3518
3519                         if (((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot)) {
3520                                 int temp;
3521                                 MonoInst *iargs [2];
3522                                 g_assert (field->parent);
3523                                 NEW_TEMPLOAD (cfg, iargs [0], mono_get_domainvar (cfg)->inst_c0);
3524                                 NEW_FIELDCONST (cfg, iargs [1], field);
3525                                 temp = mono_emit_jit_icall (cfg, bblock, mono_class_static_field_address, iargs, ip);
3526                                 NEW_TEMPLOAD (cfg, ins, temp);
3527                         } else {
3528                                 gpointer addr;
3529                                 vtable = mono_class_vtable (cfg->domain, klass);
3530                                 if (!cfg->domain->thread_static_fields || !(addr = g_hash_table_lookup (cfg->domain->thread_static_fields, field))) {
3531                                         addr = (char*)vtable->data + field->offset;
3532                                         NEW_PCONST (cfg, ins, addr);
3533                                         ins->cil_code = ip;
3534                                 } else {
3535                                         /*
3536                                          * insert call to mono_threads_get_static_data (GPOINTER_TO_UINT (addr))
3537                                          * This could be later optimized to do just a couple of
3538                                          * memory dereferences with constant offsets.
3539                                          */
3540                                         int temp;
3541                                         MonoInst *iargs [1];
3542                                         NEW_ICONST (cfg, iargs [0], GPOINTER_TO_UINT (addr));
3543                                         temp = mono_emit_jit_icall (cfg, bblock, mono_threads_get_static_data, iargs, ip);
3544                                         NEW_TEMPLOAD (cfg, ins, temp);
3545                                 }
3546                         }
3547
3548                         /* FIXME: mark instructions for use in SSA */
3549                         if (*ip == CEE_LDSFLDA) {
3550                                 *sp++ = ins;
3551                         } else if (*ip == CEE_STSFLD) {
3552                                 MonoInst *store;
3553                                 CHECK_STACK (1);
3554                                 sp--;
3555                                 MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
3556                                 store->cil_code = ip;
3557                                 store->inst_left = ins;
3558                                 store->inst_right = sp [0];
3559                                 store->flags |= ins_flag;
3560                                 ins_flag = 0;
3561
3562                                 if (store->opcode == CEE_STOBJ) {
3563                                         handle_stobj (cfg, bblock, ins, sp [0], ip, mono_class_from_mono_type (field->type), FALSE, FALSE);
3564                                 } else
3565                                         MONO_ADD_INS (bblock, store);
3566                         } else {
3567                                 MonoInst *load;
3568                                 CHECK_STACK_OVF (1);
3569                                 MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
3570                                 type_to_eval_stack_type (field->type, load);
3571                                 load->cil_code = ip;
3572                                 load->inst_left = ins;
3573                                 *sp++ = load;
3574                                 load->flags |= ins_flag;
3575                                 ins_flag = 0;
3576                         /* fixme: dont see the problem why this does not work */
3577                                 //cfg->disable_aot = TRUE;
3578                         }
3579                         ip += 5;
3580                         break;
3581                 }
3582                 case CEE_STOBJ:
3583                         CHECK_STACK (2);
3584                         sp -= 2;
3585                         token = read32 (ip + 1);
3586                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3587                                 klass = mono_method_get_wrapper_data (method, token);
3588                         else
3589                                 klass = mono_class_get (image, token);
3590                         mono_class_init (klass);
3591                         handle_stobj (cfg, bblock, sp [0], sp [1], ip, klass, FALSE, FALSE);
3592                         ip += 5;
3593                         inline_costs += 1;
3594                         break;
3595                 case CEE_BOX: {
3596                         MonoInst *iargs [2];
3597                         MonoInst *load, *vtoffset, *add, *val, *vstore;
3598                         int temp;
3599                         CHECK_STACK (1);
3600                         --sp;
3601                         val = *sp;
3602                         token = read32 (ip + 1);
3603                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3604                                 klass = mono_method_get_wrapper_data (method, token);
3605                         else
3606                                 klass = mono_class_get (image, token);
3607                         mono_class_init (klass);
3608
3609                         /* much like NEWOBJ */
3610                         NEW_DOMAINCONST (cfg, iargs [0]);
3611                         NEW_CLASSCONST (cfg, iargs [1], klass);
3612
3613                         temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
3614                         NEW_TEMPLOAD (cfg, load, temp);
3615                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
3616                         MONO_INST_NEW (cfg, add, CEE_ADD);
3617                         add->inst_left = load;
3618                         add->inst_right = vtoffset;
3619                         add->cil_code = ip;
3620                         add->klass = klass;
3621                         MONO_INST_NEW (cfg, vstore, CEE_STIND_I);
3622                         vstore->opcode = mono_type_to_stind (&klass->byval_arg);
3623                         vstore->cil_code = ip;
3624                         vstore->inst_left = add;
3625                         vstore->inst_right = val;
3626
3627                         if (vstore->opcode == CEE_STOBJ) {
3628                                 handle_stobj (cfg, bblock, add, val, ip, klass, FALSE, FALSE);
3629                         } else
3630                                 MONO_ADD_INS (bblock, vstore);
3631
3632                         NEW_TEMPLOAD (cfg, load, temp);
3633                         *sp++ = load;
3634                         ip += 5;
3635                         inline_costs += 1;
3636                         break;
3637                 }
3638                 case CEE_NEWARR:
3639                         CHECK_STACK (1);
3640                         MONO_INST_NEW (cfg, ins, *ip);
3641                         ins->cil_code = ip;
3642                         --sp;
3643
3644                         token = read32 (ip + 1);
3645
3646                         /* allocate the domainvar - becaus this is used in decompose_foreach */
3647                         if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot)
3648                                 mono_get_domainvar (cfg);
3649
3650                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3651                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3652                         else
3653                                 klass = mono_class_get (image, token);
3654
3655                         mono_class_init (klass);
3656                         ins->inst_newa_class = klass;
3657                         ins->inst_newa_len = *sp;
3658                         ins->type = STACK_OBJ;
3659                         ip += 5;
3660                         *sp++ = ins;
3661                         inline_costs += 1;
3662                         break;
3663                 case CEE_LDLEN:
3664                         CHECK_STACK (1);
3665                         MONO_INST_NEW (cfg, ins, *ip);
3666                         ins->cil_code = ip++;
3667                         --sp;
3668                         ins->inst_left = *sp;
3669                         ins->type = STACK_PTR;
3670                         *sp++ = ins;
3671                         break;
3672                 case CEE_LDELEMA:
3673                         CHECK_STACK (2);
3674                         sp -= 2;
3675                         klass = mono_class_get (image, read32 (ip + 1));
3676                         mono_class_init (klass);
3677                         NEW_LDELEMA (cfg, ins, sp, klass);
3678                         ins->cil_code = ip;
3679                         *sp++ = ins;
3680                         ip += 5;
3681                         break;
3682                 case CEE_LDELEM_I1:
3683                 case CEE_LDELEM_U1:
3684                 case CEE_LDELEM_I2:
3685                 case CEE_LDELEM_U2:
3686                 case CEE_LDELEM_I4:
3687                 case CEE_LDELEM_U4:
3688                 case CEE_LDELEM_I8:
3689                 case CEE_LDELEM_I:
3690                 case CEE_LDELEM_R4:
3691                 case CEE_LDELEM_R8:
3692                 case CEE_LDELEM_REF: {
3693                         MonoInst *load;
3694                         /*
3695                          * translate to:
3696                          * ldind.x (ldelema (array, index))
3697                          * ldelema does the bounds check
3698                          */
3699                         CHECK_STACK (2);
3700                         sp -= 2;
3701                         klass = array_access_to_klass (*ip);
3702                         NEW_LDELEMA (cfg, load, sp, klass);
3703                         load->cil_code = ip;
3704                         MONO_INST_NEW (cfg, ins, ldelem_to_ldind [*ip - CEE_LDELEM_I1]);
3705                         ins->cil_code = ip;
3706                         ins->inst_left = load;
3707                         *sp++ = ins;
3708                         ins->type = ldind_type [ins->opcode - CEE_LDIND_I1];
3709                         ++ip;
3710                         break;
3711                 }
3712                 case CEE_STELEM_I:
3713                 case CEE_STELEM_I1:
3714                 case CEE_STELEM_I2:
3715                 case CEE_STELEM_I4:
3716                 case CEE_STELEM_I8:
3717                 case CEE_STELEM_R4:
3718                 case CEE_STELEM_R8: {
3719                         MonoInst *load;
3720                         /*
3721                          * translate to:
3722                          * stind.x (ldelema (array, index), val)
3723                          * ldelema does the bounds check
3724                          */
3725                         CHECK_STACK (3);
3726                         sp -= 3;
3727                         klass = array_access_to_klass (*ip);
3728                         NEW_LDELEMA (cfg, load, sp, klass);
3729                         load->cil_code = ip;
3730                         MONO_INST_NEW (cfg, ins, stelem_to_stind [*ip - CEE_STELEM_I]);
3731                         ins->cil_code = ip;
3732                         ins->inst_left = load;
3733                         ins->inst_right = sp [2];
3734                         ++ip;
3735                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3736                         MONO_ADD_INS (bblock, ins);
3737                         /* FIXME: add the implicit STELEM_REF castclass */
3738                         inline_costs += 1;
3739                         cfg->disable_ssa = TRUE;
3740                         break;
3741                 }
3742                 case CEE_STELEM_REF: {
3743                         MonoInst *iargs [3];
3744
3745                         CHECK_STACK (3);
3746                         sp -= 3;
3747
3748                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3749
3750                         iargs [2] = sp [2];
3751                         iargs [1] = sp [1];
3752                         iargs [0] = sp [0];
3753
3754                         mono_emit_jit_icall (cfg, bblock, helper_stelem_ref, iargs, ip);
3755
3756                         /*
3757                         MonoInst *group;
3758                         NEW_GROUP (cfg, group, sp [0], sp [1]);
3759                         MONO_INST_NEW (cfg, ins, CEE_STELEM_REF);
3760                         ins->cil_code = ip;
3761                         ins->inst_left = group;
3762                         ins->inst_right = sp [2];
3763                         MONO_ADD_INS (bblock, ins);
3764                         */
3765
3766                         ++ip;
3767                         inline_costs += 1;
3768                         cfg->disable_ssa = TRUE;
3769                         break;
3770                 }
3771                 case CEE_CKFINITE: {
3772                         MonoInst *store, *temp;
3773                         CHECK_STACK (1);
3774
3775                         /* this instr. can throw exceptions as side effect,
3776                          * so we cant eliminate dead code which contains CKFINITE opdodes.
3777                          * Spilling to memory makes sure that we always perform
3778                          * this check */
3779
3780
3781                         MONO_INST_NEW (cfg, ins, CEE_CKFINITE);
3782                         ins->cil_code = ip;
3783                         ins->inst_left = sp [-1];
3784                         temp = mono_compile_create_var (cfg, &mono_defaults.double_class->byval_arg, OP_LOCAL);
3785
3786                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
3787                         store->cil_code = ip;
3788                         MONO_ADD_INS (bblock, store);
3789
3790                         NEW_TEMPLOAD (cfg, sp [-1], temp->inst_c0);
3791
3792                         ++ip;
3793                         break;
3794                 }
3795                 case CEE_REFANYVAL:
3796                 case CEE_MKREFANY:
3797                         g_error ("opcode 0x%02x not handled", *ip);
3798                         break;
3799                 case CEE_LDTOKEN: {
3800                         gpointer handle;
3801                         MonoClass *handle_class;
3802
3803                         CHECK_STACK_OVF (1);
3804
3805                         n = read32 (ip + 1);
3806
3807                         handle = mono_ldtoken (image, n, &handle_class);
3808                         mono_class_init (handle_class);
3809
3810                         if (((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot)) {
3811                                 int temp;
3812                                 MonoInst *res, *store, *addr, *vtvar, *iargs [2];
3813
3814                                 vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
3815
3816                                 NEW_IMAGECONST (cfg, iargs [0], image);
3817                                 NEW_ICONST (cfg, iargs [1], n);
3818                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldtoken_wrapper, iargs, ip);
3819                                 NEW_TEMPLOAD (cfg, res, temp);
3820                                 NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
3821                                 NEW_INDSTORE (cfg, store, addr, res, &mono_defaults.int_class->byval_arg);
3822                                 MONO_ADD_INS (bblock, store);
3823                                 NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
3824                         } else {
3825                                 if ((ip [5] == CEE_CALL) && (cmethod = mono_get_method (image, read32 (ip + 6), NULL)) &&
3826                                                 (cmethod->klass == mono_defaults.monotype_class->parent) &&
3827                                                 (strcmp (cmethod->name, "GetTypeFromHandle") == 0)) {
3828                                         MonoClass *tclass = mono_class_from_mono_type (handle);
3829                                         mono_class_init (tclass);
3830                                         NEW_PCONST (cfg, ins, mono_type_get_object (cfg->domain, handle));
3831                                         ins->type = STACK_OBJ;
3832                                         ins->klass = cmethod->klass;
3833                                         ip += 5;
3834                                 } else {
3835                                         NEW_PCONST (cfg, ins, handle);
3836                                         ins->type = STACK_VTYPE;
3837                                         ins->klass = handle_class;
3838                                 }
3839                         }
3840
3841                         *sp++ = ins;
3842                         ip += 5;
3843                         break;
3844                 }
3845                 case CEE_CONV_U2:
3846                 case CEE_CONV_U1:
3847                 case CEE_CONV_I:
3848                         CHECK_STACK (1);
3849                         ADD_UNOP (*ip);
3850                         ip++;
3851                         break;
3852                 case CEE_ADD_OVF:
3853                 case CEE_ADD_OVF_UN:
3854                 case CEE_MUL_OVF:
3855                 case CEE_MUL_OVF_UN:
3856                 case CEE_SUB_OVF:
3857                 case CEE_SUB_OVF_UN:
3858                         CHECK_STACK (2);
3859                         ADD_BINOP (*ip);
3860                         ip++;
3861                         break;
3862                 case CEE_ENDFINALLY:
3863                         /* FIXME: check stack state */
3864                         MONO_INST_NEW (cfg, ins, *ip);
3865                         MONO_ADD_INS (bblock, ins);
3866                         ins->cil_code = ip++;
3867                         start_new_bblock = 1;
3868                         break;
3869                 case CEE_LEAVE:
3870                 case CEE_LEAVE_S: {
3871                         GList *handlers;
3872                         if (*ip == CEE_LEAVE) {
3873                                 target = ip + 5 + (gint32)read32(ip + 1);
3874                         } else {
3875                                 target = ip + 2 + (signed char)(ip [1]);
3876                         }
3877
3878                         /* empty the stack */
3879                         while (sp != stack_start) {
3880                                 MONO_INST_NEW (cfg, ins, CEE_POP);
3881                                 ins->cil_code = ip;
3882                                 sp--;
3883                                 ins->inst_i0 = *sp;
3884                                 MONO_ADD_INS (bblock, ins);
3885                         }
3886
3887                         /* fixme: call fault handler ? */
3888
3889                         if ((handlers = mono_find_final_block (cfg, ip, target, MONO_EXCEPTION_CLAUSE_FINALLY))) {
3890                                 GList *tmp;
3891                                 for (tmp = handlers; tmp; tmp = tmp->next) {
3892                                         tblock = tmp->data;
3893                                         link_bblock (cfg, bblock, tblock);
3894                                         MONO_INST_NEW (cfg, ins, OP_HANDLER);
3895                                         ins->cil_code = ip;
3896                                         ins->inst_target_bb = tblock;
3897                                         MONO_ADD_INS (bblock, ins);
3898                                 }
3899                                 g_list_free (handlers);
3900                         }
3901
3902                         MONO_INST_NEW (cfg, ins, CEE_BR);
3903                         ins->cil_code = ip;
3904                         MONO_ADD_INS (bblock, ins);
3905                         GET_BBLOCK (cfg, bbhash, tblock, target);
3906                         link_bblock (cfg, bblock, tblock);
3907                         CHECK_BBLOCK (target, ip, tblock);
3908                         ins->inst_target_bb = tblock;
3909                         start_new_bblock = 1;
3910
3911                         if (*ip == CEE_LEAVE)
3912                                 ip += 5;
3913                         else
3914                                 ip += 2;
3915
3916                         break;
3917                 }
3918                 case CEE_STIND_I:
3919                         CHECK_STACK (2);
3920                         MONO_INST_NEW (cfg, ins, *ip);
3921                         sp -= 2;
3922                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3923                         MONO_ADD_INS (bblock, ins);
3924                         ins->cil_code = ip++;
3925                         ins->inst_i0 = sp [0];
3926                         ins->inst_i1 = sp [1];
3927                         inline_costs += 1;
3928                         break;
3929                 case CEE_CONV_U:
3930                         CHECK_STACK (1);
3931                         ADD_UNOP (*ip);
3932                         ip++;
3933                         break;
3934                 /* trampoline mono specific opcodes */
3935                 case MONO_CUSTOM_PREFIX: {
3936
3937                         g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
3938
3939                         switch (ip [1]) {
3940
3941                         case CEE_MONO_FUNC1: {
3942                                 int temp;
3943                                 gpointer func = NULL;
3944                                 CHECK_STACK (1);
3945                                 sp--;
3946
3947                                 switch (ip [2]) {
3948                                 case MONO_MARSHAL_CONV_STR_LPWSTR:
3949                                         func = mono_string_to_utf16;
3950                                         break;
3951                                 case MONO_MARSHAL_CONV_LPWSTR_STR:
3952                                         func = mono_string_from_utf16;
3953                                         break;
3954                                 case MONO_MARSHAL_CONV_LPSTR_STR:
3955                                         func = mono_string_new_wrapper;
3956                                         break;
3957                                 case MONO_MARSHAL_CONV_STR_LPTSTR:
3958                                 case MONO_MARSHAL_CONV_STR_LPSTR:
3959                                         func = mono_string_to_utf8;
3960                                         break;
3961                                 case MONO_MARSHAL_CONV_STR_BSTR:
3962                                         func = mono_string_to_bstr;
3963                                         break;
3964                                 case MONO_MARSHAL_CONV_STR_TBSTR:
3965                                 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
3966                                         func = mono_string_to_ansibstr;
3967                                         break;
3968                                 case MONO_MARSHAL_CONV_SB_LPSTR:
3969                                         func = mono_string_builder_to_utf8;
3970                                         break;
3971                                 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
3972                                         func = mono_array_to_savearray;
3973                                         break;
3974                                 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
3975                                         func = mono_array_to_lparray;
3976                                         break;
3977                                 case MONO_MARSHAL_CONV_DEL_FTN:
3978                                         func = mono_delegate_to_ftnptr;
3979                                         break;
3980                                 case MONO_MARSHAL_CONV_STRARRAY_STRLPARRAY:
3981                                         func = mono_marshal_string_array;
3982                                         break;
3983                                 default:
3984                                         g_warning ("unknown conversion %d\n", ip [2]);
3985                                         g_assert_not_reached ();
3986                                 }
3987
3988                                 temp = mono_emit_jit_icall (cfg, bblock, func, sp, ip);
3989                                 NEW_TEMPLOAD (cfg, *sp, temp);
3990                                 sp++;
3991
3992                                 ip += 3;
3993                                 inline_costs += 10 * num_calls++;
3994                                 break;
3995                         }
3996                         case CEE_MONO_PROC2: {
3997                                 gpointer func = NULL;
3998                                 CHECK_STACK (2);
3999                                 sp -= 2;
4000
4001                                 switch (ip [2]) {
4002                                 case MONO_MARSHAL_CONV_LPSTR_SB:
4003                                         func = mono_string_utf8_to_builder;
4004                                         break;
4005                                 case MONO_MARSHAL_FREE_ARRAY:
4006                                         func = mono_marshal_free_array;
4007                                         break;
4008                                 default:
4009                                         g_assert_not_reached ();
4010                                 }
4011
4012                                 mono_emit_jit_icall (cfg, bblock, func, sp, ip);
4013                                 ip += 3;
4014                                 inline_costs += 10 * num_calls++;
4015                                 break;
4016                         }
4017                         case CEE_MONO_PROC3: {
4018                                 gpointer func = NULL;
4019                                 CHECK_STACK (3);
4020                                 sp -= 3;
4021
4022                                 switch (ip [2]) {
4023                                 case MONO_MARSHAL_CONV_STR_BYVALSTR:
4024                                         func = mono_string_to_byvalstr;
4025                                         break;
4026                                 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
4027                                         func = mono_string_to_byvalwstr;
4028                                         break;
4029                                 default:
4030                                         g_assert_not_reached ();
4031                                 }
4032
4033                                 mono_emit_jit_icall (cfg, bblock, func, sp, ip);
4034                                 ip += 3;
4035                                 inline_costs += 10 * num_calls++;
4036                                 break;
4037                         }
4038                         case CEE_MONO_FREE:
4039                                 CHECK_STACK (1);
4040                                 sp -= 1;
4041                                 mono_emit_jit_icall (cfg, bblock, g_free, sp, ip);
4042                                 ip += 2;
4043                                 inline_costs += 10 * num_calls++;
4044                                 break;
4045                         case CEE_MONO_LDPTR:
4046                                 CHECK_STACK_OVF (1);
4047                                 token = read32 (ip + 2);
4048                                 NEW_PCONST (cfg, ins, mono_method_get_wrapper_data (method, token));
4049                                 ins->cil_code = ip;
4050                                 *sp++ = ins;
4051                                 ip += 6;
4052                                 inline_costs += 10 * num_calls++;
4053                                 break;
4054                         case CEE_MONO_VTADDR:
4055                                 CHECK_STACK (1);
4056                                 --sp;
4057                                 MONO_INST_NEW (cfg, ins, OP_VTADDR);
4058                                 ins->cil_code = ip;
4059                                 ins->type = STACK_MP;
4060                                 ins->inst_left = *sp;
4061                                 *sp++ = ins;
4062                                 ip += 2;
4063                                 break;
4064                         case CEE_MONO_NEWOBJ: {
4065                                 MonoInst *iargs [2];
4066                                 int temp;
4067                                 CHECK_STACK_OVF (1);
4068                                 token = read32 (ip + 2);
4069                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
4070                                 mono_class_init (klass);
4071                                 NEW_DOMAINCONST (cfg, iargs [0]);
4072                                 NEW_CLASSCONST (cfg, iargs [1], klass);
4073                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
4074                                 NEW_TEMPLOAD (cfg, *sp, temp);
4075                                 sp++;
4076                                 ip += 6;
4077                                 inline_costs += 10 * num_calls++;
4078                                 break;
4079                         }
4080                         case CEE_MONO_OBJADDR:
4081                                 CHECK_STACK (1);
4082                                 --sp;
4083                                 MONO_INST_NEW (cfg, ins, OP_OBJADDR);
4084                                 ins->cil_code = ip;
4085                                 ins->type = STACK_MP;
4086                                 ins->inst_left = *sp;
4087                                 *sp++ = ins;
4088                                 ip += 2;
4089                                 break;
4090                         case CEE_MONO_LDNATIVEOBJ:
4091                                 CHECK_STACK (1);
4092                                 token = read32 (ip + 2);
4093                                 klass = mono_method_get_wrapper_data (method, token);
4094                                 g_assert (klass->valuetype);
4095                                 mono_class_init (klass);
4096                                 NEW_INDLOAD (cfg, ins, sp [-1], &klass->byval_arg);
4097                                 sp [-1] = ins;
4098                                 ip += 6;
4099                                 break;
4100                         case CEE_MONO_RETOBJ:
4101                                 g_assert (cfg->ret);
4102                                 g_assert (method->signature->pinvoke);
4103                                 CHECK_STACK (1);
4104                                 --sp;
4105
4106                                 token = read32 (ip + 2);
4107                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
4108
4109                                 NEW_RETLOADA (cfg, ins);
4110                                 handle_stobj (cfg, bblock, ins, *sp, ip, klass, FALSE, TRUE);
4111
4112                                 if (sp != stack_start)
4113                                         goto unverified;
4114
4115                                 MONO_INST_NEW (cfg, ins, CEE_BR);
4116                                 ins->cil_code = ip;
4117                                 ins->inst_target_bb = end_bblock;
4118                                 MONO_ADD_INS (bblock, ins);
4119                                 link_bblock (cfg, bblock, end_bblock);
4120                                 start_new_bblock = 1;
4121                                 ip += 6;
4122                                 break;
4123                         default:
4124                                 g_error ("opcode 0x%02x 0x%02x not handled", MONO_CUSTOM_PREFIX, ip [1]);
4125                                 break;
4126                         }
4127                         break;
4128                 }
4129                 case CEE_PREFIX1: {
4130                         switch (ip [1]) {
4131                         case CEE_ARGLIST:
4132                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
4133                                 break;
4134                         case CEE_CEQ:
4135                         case CEE_CGT:
4136                         case CEE_CGT_UN:
4137                         case CEE_CLT:
4138                         case CEE_CLT_UN: {
4139                                 MonoInst *cmp;
4140                                 CHECK_STACK (2);
4141                                 MONO_INST_NEW (cfg, cmp, 256 + ip [1]);
4142                                 MONO_INST_NEW (cfg, ins, cmp->opcode);
4143                                 sp -= 2;
4144                                 cmp->inst_i0 = sp [0];
4145                                 cmp->inst_i1 = sp [1];
4146                                 cmp->cil_code = ip;
4147                                 type_from_op (cmp);
4148                                 CHECK_TYPE (cmp);
4149                                 cmp->opcode = OP_COMPARE;
4150                                 ins->cil_code = ip;
4151                                 ins->type = STACK_I4;
4152                                 ins->inst_i0 = cmp;
4153                                 *sp++ = ins;
4154                                 ip += 2;
4155                                 break;
4156                         }
4157                         case CEE_LDFTN: {
4158                                 MonoInst *argconst;
4159                                 int temp;
4160
4161                                 CHECK_STACK_OVF (1);
4162                                 n = read32 (ip + 2);
4163                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
4164                                         cmethod = mono_method_get_wrapper_data (method, n);
4165                                 else {
4166                                         cmethod = mono_get_method (image, n, NULL);
4167
4168                                         /*
4169                                          * We can't do this in mono_ldftn, since it is used in
4170                                          * the synchronized wrapper, leading to an infinite loop.
4171                                          */
4172                                         if (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
4173                                                 cmethod = mono_marshal_get_synchronized_wrapper (cmethod);
4174                                 }
4175
4176                                 mono_class_init (cmethod->klass);
4177                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4178
4179                                 NEW_METHODCONST (cfg, argconst, cmethod);
4180                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldftn, &argconst, ip);
4181                                 NEW_TEMPLOAD (cfg, *sp, temp);
4182                                 sp ++;
4183
4184                                 ip += 6;
4185                                 inline_costs += 10 * num_calls++;
4186                                 break;
4187                         }
4188                         case CEE_LDVIRTFTN: {
4189                                 MonoInst *args [2];
4190                                 int temp;
4191
4192                                 CHECK_STACK (1);
4193                                 n = read32 (ip + 2);
4194                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
4195                                         cmethod = mono_method_get_wrapper_data (method, n);
4196                                 else
4197                                         cmethod = mono_get_method (image, n, NULL);
4198
4199                                 mono_class_init (cmethod->klass);
4200                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4201
4202                                 --sp;
4203                                 args [0] = *sp;
4204                                 NEW_METHODCONST (cfg, args [1], cmethod);
4205                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldvirtfn, args, ip);
4206                                 NEW_TEMPLOAD (cfg, *sp, temp);
4207                                 sp ++;
4208
4209                                 ip += 6;
4210                                 inline_costs += 10 * num_calls++;
4211                                 break;
4212                         }
4213                         case CEE_LDARG:
4214                                 CHECK_STACK_OVF (1);
4215                                 NEW_ARGLOAD (cfg, ins, read16 (ip + 2));
4216                                 ins->cil_code = ip;
4217                                 *sp++ = ins;
4218                                 ip += 4;
4219                                 break;
4220                         case CEE_LDARGA:
4221                                 CHECK_STACK_OVF (1);
4222                                 NEW_ARGLOADA (cfg, ins, read16 (ip + 2));
4223                                 ins->cil_code = ip;
4224                                 *sp++ = ins;
4225                                 ip += 4;
4226                                 break;
4227                         case CEE_STARG:
4228                                 CHECK_STACK (1);
4229                                 --sp;
4230                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4231                                 n = read16 (ip + 2);
4232                                 NEW_ARGSTORE (cfg, ins, n, *sp);
4233                                 ins->cil_code = ip;
4234                                 if (ins->opcode == CEE_STOBJ) {
4235                                         NEW_ARGLOADA (cfg, ins, n);
4236                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
4237                                 } else
4238                                         MONO_ADD_INS (bblock, ins);
4239                                 ip += 4;
4240                                 break;
4241                         case CEE_LDLOC:
4242                                 CHECK_STACK_OVF (1);
4243                                 NEW_LOCLOAD (cfg, ins, read16 (ip + 2));
4244                                 ins->cil_code = ip;
4245                                 *sp++ = ins;
4246                                 ip += 4;
4247                                 break;
4248                         case CEE_LDLOCA:
4249                                 CHECK_STACK_OVF (1);
4250                                 NEW_LOCLOADA (cfg, ins, read16 (ip + 2));
4251                                 ins->cil_code = ip;
4252                                 *sp++ = ins;
4253                                 ip += 4;
4254                                 break;
4255                         case CEE_STLOC:
4256                                 CHECK_STACK (1);
4257                                 --sp;
4258                                 n = read16 (ip + 2);
4259                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4260                                 NEW_LOCSTORE (cfg, ins, n, *sp);
4261                                 ins->cil_code = ip;
4262                                 if (ins->opcode == CEE_STOBJ) {
4263                                         NEW_LOCLOADA (cfg, ins, n);
4264                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
4265                                 } else
4266                                         MONO_ADD_INS (bblock, ins);
4267                                 ip += 4;
4268                                 inline_costs += 1;
4269                                 break;
4270                         case CEE_LOCALLOC:
4271                                 CHECK_STACK (1);
4272                                 --sp;
4273                                 if (sp != stack_start)
4274                                         goto unverified;
4275                                 MONO_INST_NEW (cfg, ins, 256 + ip [1]);
4276                                 ins->inst_left = *sp;
4277                                 ins->cil_code = ip;
4278
4279                                 if (header->init_locals)
4280                                         ins->flags |= MONO_INST_INIT;
4281
4282                                 *sp++ = ins;
4283                                 ip += 2;
4284                                 /* FIXME: set init flag if locals init is set in this method */
4285                                 break;
4286                         case CEE_ENDFILTER: {
4287                                 MonoExceptionClause *clause, *nearest;
4288                                 int cc, nearest_num;
4289
4290                                 CHECK_STACK (1);
4291                                 --sp;
4292                                 if ((sp != stack_start) || (sp [0]->type != STACK_I4))
4293                                         goto unverified;
4294                                 MONO_INST_NEW (cfg, ins, OP_ENDFILTER);
4295                                 ins->inst_left = *sp;
4296                                 ins->cil_code = ip;
4297                                 MONO_ADD_INS (bblock, ins);
4298                                 start_new_bblock = 1;
4299                                 ip += 2;
4300
4301                                 nearest = NULL;
4302                                 for (cc = 0; cc < header->num_clauses; ++cc) {
4303                                         clause = &header->clauses [cc];
4304                                         if ((clause->flags & MONO_EXCEPTION_CLAUSE_FILTER) &&
4305                                             (!nearest || (clause->token_or_filter > nearest->token_or_filter))) {
4306                                                 nearest = clause;
4307                                                 nearest_num = cc;
4308                                         }
4309                                 }
4310                                 g_assert (nearest);
4311                                 filter_lengths [nearest_num] = (ip - header->code) -  nearest->token_or_filter;
4312
4313                                 break;
4314                         }
4315                         case CEE_UNALIGNED_:
4316                                 ins_flag |= MONO_INST_UNALIGNED;
4317                                 ip += 3;
4318                                 break;
4319                         case CEE_VOLATILE_:
4320                                 ins_flag |= MONO_INST_VOLATILE;
4321                                 ip += 2;
4322                                 break;
4323                         case CEE_TAIL_:
4324                                 ins_flag |= MONO_INST_TAILCALL;
4325                                 ip += 2;
4326                                 break;
4327                         case CEE_INITOBJ:
4328                                 CHECK_STACK (1);
4329                                 --sp;
4330                                 token = read32 (ip + 2);
4331                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
4332                                         klass = mono_method_get_wrapper_data (method, token);
4333                                 else
4334                                         klass = mono_class_get (image, token);
4335                                 handle_initobj (cfg, bblock, *sp, NULL, klass, stack_start, sp);
4336                                 ip += 6;
4337                                 inline_costs += 1;
4338                                 break;
4339                         case CEE_CPBLK:
4340                         case CEE_INITBLK: {
4341                                 MonoInst *iargs [3];
4342                                 CHECK_STACK (3);
4343                                 sp -= 3;
4344                                 iargs [0] = sp [0];
4345                                 iargs [1] = sp [1];
4346                                 iargs [2] = sp [2];
4347                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4348                                 if (ip [1] == CEE_CPBLK) {
4349                                         mono_emit_jit_icall (cfg, bblock, helper_memcpy, iargs, ip);
4350                                 } else {
4351                                         mono_emit_jit_icall (cfg, bblock, helper_memset, iargs, ip);
4352                                 }
4353                                 ip += 2;
4354                                 inline_costs += 1;
4355                                 break;
4356                         }
4357                         case CEE_RETHROW: {
4358                                 MonoInst *load;
4359                                 /* FIXME: check we are in a catch handler */
4360                                 NEW_TEMPLOAD (cfg, load, cfg->exvar->inst_c0);
4361                                 load->cil_code = ip;
4362                                 MONO_INST_NEW (cfg, ins, CEE_THROW);
4363                                 ins->inst_left = load;
4364                                 ins->cil_code = ip;
4365                                 MONO_ADD_INS (bblock, ins);
4366                                 sp = stack_start;
4367                                 start_new_bblock = 1;
4368                                 ip += 2;
4369                                 break;
4370                         }
4371                         case CEE_SIZEOF:
4372                                 CHECK_STACK_OVF (1);
4373                                 token = read32 (ip + 2);
4374                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
4375                                         MonoType *type = mono_type_create_from_typespec (image, token);
4376                                         token = mono_type_size (type, &align);
4377                                         mono_metadata_free_type (type);
4378                                 } else {
4379                                         MonoClass *szclass = mono_class_get (image, token);
4380                                         mono_class_init (szclass);
4381                                         token = mono_class_value_size (szclass, &align);
4382                                 }
4383                                 NEW_ICONST (cfg, ins, token);
4384                                 ins->cil_code = ip;
4385                                 *sp++= ins;
4386                                 ip += 6;
4387                                 break;
4388                         case CEE_REFANYTYPE:
4389                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
4390                                 break;
4391                         default:
4392                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
4393                         }
4394                         break;
4395                 }
4396                 default:
4397                         g_error ("opcode 0x%02x not handled", *ip);
4398                 }
4399         }
4400         if (start_new_bblock != 1)
4401                 goto unverified;
4402
4403         bblock->cil_length = ip - bblock->cil_code;
4404         bblock->next_bb = end_bblock;
4405         link_bblock (cfg, bblock, end_bblock);
4406
4407         if (cfg->method == method && cfg->domainvar) {
4408                 MonoCallInst *call;
4409                 MonoInst *store;
4410
4411                 MONO_INST_NEW_CALL (cfg, call, CEE_CALL);
4412                 call->signature = helper_sig_domain_get;
4413                 call->inst.type = STACK_PTR;
4414                 call->fptr = mono_domain_get;
4415                 NEW_TEMPSTORE (cfg, store, cfg->domainvar->inst_c0, (MonoInst*)call);
4416
4417                 MONO_ADD_INS (init_localsbb, store);
4418         }
4419
4420         if (header->init_locals) {
4421                 MonoInst *store;
4422                 for (i = 0; i < header->num_locals; ++i) {
4423                         int t = header->locals [i]->type;
4424                         if (t == MONO_TYPE_VALUETYPE && header->locals [i]->data.klass->enumtype)
4425                                 t = header->locals [i]->data.klass->enum_basetype->type;
4426                         /* FIXME: use initobj for valuetypes, handle pointers, long, float. */
4427                         if (t >= MONO_TYPE_BOOLEAN && t <= MONO_TYPE_U4) {
4428                                 NEW_ICONST (cfg, ins, 0);
4429                                 NEW_LOCSTORE (cfg, store, i, ins);
4430                                 MONO_ADD_INS (init_localsbb, store);
4431                         } else if (t == MONO_TYPE_I8 || t == MONO_TYPE_U8) {
4432                                 MONO_INST_NEW (cfg, ins, OP_I8CONST);
4433                                 ins->type = STACK_I8;
4434                                 ins->inst_l = 0;
4435                                 NEW_LOCSTORE (cfg, store, i, ins);
4436                                 MONO_ADD_INS (init_localsbb, store);
4437                         } else if (t == MONO_TYPE_R4 || t == MONO_TYPE_R8) {
4438                                 MONO_INST_NEW (cfg, ins, OP_R8CONST);
4439                                 ins->type = STACK_R8;
4440                                 ins->inst_p0 = (void*)&r8_0;
4441                                 NEW_LOCSTORE (cfg, store, i, ins);
4442                                 MONO_ADD_INS (init_localsbb, store);
4443                         } else if (t == MONO_TYPE_VALUETYPE) {
4444                                 NEW_LOCLOADA (cfg, ins, i);
4445                                 handle_initobj (cfg, init_localsbb, ins, NULL, mono_class_from_mono_type (header->locals [i]), NULL, NULL);
4446                                 break;
4447                         } else {
4448                                 NEW_PCONST (cfg, ins, NULL);
4449                                 NEW_LOCSTORE (cfg, store, i, ins);
4450                                 MONO_ADD_INS (init_localsbb, store);
4451                         }
4452                 }
4453         }
4454
4455
4456         /* resolve backward branches in the middle of an existing basic block */
4457         for (tmp = bb_recheck; tmp; tmp = tmp->next) {
4458                 bblock = tmp->data;
4459                 /*g_print ("need recheck in %s at IL_%04x\n", method->name, bblock->cil_code - header->code);*/
4460                 tblock = find_previous (bbhash, start_bblock, bblock->cil_code);
4461                 if (tblock != start_bblock) {
4462                         int l;
4463                         split_bblock (cfg, tblock, bblock);
4464                         l = bblock->cil_code - header->code;
4465                         bblock->cil_length = tblock->cil_length - l;
4466                         tblock->cil_length = l;
4467                 } else {
4468                         g_print ("recheck failed.\n");
4469                 }
4470         }
4471
4472         /* we compute regions here, because the length of filter clauses is not known in advance.
4473         * It is computed in the CEE_ENDFILTER case in the above switch statement*/
4474         if (cfg->method == method) {
4475                 MonoBasicBlock *bb;
4476                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4477                         bb->region = mono_find_block_region (cfg, bb->real_offset, filter_lengths);
4478                         if (cfg->verbose_level > 2)
4479                                 g_print ("REGION BB%d IL_%04x ID_%08X\n", bb->block_num, bb->real_offset, bb->region);
4480                 }
4481         } else {
4482                 g_hash_table_destroy (bbhash);
4483         }
4484
4485         dont_inline = g_list_remove (dont_inline, method);
4486         return inline_costs;
4487
4488  inline_failure:
4489         if (cfg->method != method)
4490                 g_hash_table_destroy (bbhash);
4491         dont_inline = g_list_remove (dont_inline, method);
4492         return -1;
4493
4494  unverified:
4495         if (cfg->method != method)
4496                 g_hash_table_destroy (bbhash);
4497         g_error ("Invalid IL code at IL%04x in %s: %s\n", ip - header->code,
4498                  mono_method_full_name (method, TRUE), mono_disasm_code_one (NULL, method, ip, NULL));
4499         dont_inline = g_list_remove (dont_inline, method);
4500         return -1;
4501 }
4502
4503 void
4504 mono_print_tree (MonoInst *tree) {
4505         int arity;
4506
4507         if (!tree)
4508                 return;
4509
4510         arity = mono_burg_arity [tree->opcode];
4511
4512         printf (" %s%s", arity?"(":"",  mono_inst_name (tree->opcode));
4513
4514         switch (tree->opcode) {
4515         case OP_ICONST:
4516                 printf ("[%d]", tree->inst_c0);
4517                 break;
4518         case OP_I8CONST:
4519                 printf ("[%lld]", tree->inst_l);
4520                 break;
4521         case OP_R8CONST:
4522                 printf ("[%f]", *(double*)tree->inst_p0);
4523                 break;
4524         case OP_R4CONST:
4525                 printf ("[%f]", *(float*)tree->inst_p0);
4526                 break;
4527         case OP_ARG:
4528         case OP_LOCAL:
4529                 printf ("[%d]", tree->inst_c0);
4530                 break;
4531         case OP_REGOFFSET:
4532                 printf ("[0x%x(%s)]", tree->inst_offset, mono_arch_regname (tree->inst_basereg));
4533                 break;
4534         case OP_REGVAR:
4535                 printf ("[%s]", mono_arch_regname (tree->dreg));
4536                 break;
4537         case CEE_NEWARR:
4538                 printf ("[%s]",  tree->inst_newa_class->name);
4539                 mono_print_tree (tree->inst_newa_len);
4540                 break;
4541         case CEE_CALL:
4542         case CEE_CALLVIRT:
4543         case OP_FCALL:
4544         case OP_FCALLVIRT:
4545         case OP_LCALL:
4546         case OP_LCALLVIRT:
4547         case OP_VCALL:
4548         case OP_VCALLVIRT:
4549         case OP_VOIDCALL:
4550         case OP_VOIDCALLVIRT: {
4551                 MonoCallInst *call = (MonoCallInst*)tree;
4552                 if (call->method)
4553                         printf ("[%s]", call->method->name);
4554                 break;
4555         }
4556         case OP_PHI: {
4557                 int i;
4558                 printf ("[%d (", tree->inst_c0);
4559                 for (i = 0; i < tree->inst_phi_args [0]; i++) {
4560                         if (i)
4561                                 printf (", ");
4562                         printf ("%d", tree->inst_phi_args [i + 1]);
4563                 }
4564                 printf (")]");
4565                 break;
4566         }
4567         case OP_RENAME:
4568         case OP_RETARG:
4569         case CEE_NOP:
4570         case CEE_JMP:
4571         case CEE_BREAK:
4572                 break;
4573         case CEE_BR:
4574                 printf ("[B%d]", tree->inst_target_bb->block_num);
4575                 break;
4576         case CEE_SWITCH:
4577         case CEE_ISINST:
4578         case CEE_CASTCLASS:
4579         case OP_OUTARG:
4580         case OP_CALL_REG:
4581         case OP_FCALL_REG:
4582         case OP_LCALL_REG:
4583         case OP_VCALL_REG:
4584         case OP_VOIDCALL_REG:
4585                 mono_print_tree (tree->inst_left);
4586                 break;
4587         case CEE_BNE_UN:
4588         case CEE_BEQ:
4589         case CEE_BLT:
4590         case CEE_BLT_UN:
4591         case CEE_BGT:
4592         case CEE_BGT_UN:
4593         case CEE_BGE:
4594         case CEE_BGE_UN:
4595         case CEE_BLE:
4596         case CEE_BLE_UN:
4597                 printf ("[B%dB%d]", tree->inst_true_bb->block_num, tree->inst_false_bb->block_num);
4598                 mono_print_tree (tree->inst_left);
4599                 break;
4600         default:
4601                 if (arity) {
4602                         mono_print_tree (tree->inst_left);
4603                         if (arity > 1)
4604                                 mono_print_tree (tree->inst_right);
4605                 }
4606                 break;
4607         }
4608
4609         if (arity)
4610                 printf (")");
4611 }
4612
4613 static void
4614 create_helper_signature (void)
4615 {
4616         /* FIXME: set call conv */
4617         /* MonoArray * mono_array_new (MonoDomain *domain, MonoClass *klass, gint32 len) */
4618         helper_sig_newarr = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4619         helper_sig_newarr->params [0] = helper_sig_newarr->params [1] = &mono_defaults.int_class->byval_arg;
4620         helper_sig_newarr->ret = &mono_defaults.object_class->byval_arg;
4621         helper_sig_newarr->params [2] = &mono_defaults.int32_class->byval_arg;
4622         helper_sig_newarr->pinvoke = 1;
4623
4624         /* MonoArray * mono_array_new_specific (MonoVTable *vtable, guint32 len) */
4625         helper_sig_newarr_specific = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4626         helper_sig_newarr_specific->params [0] = &mono_defaults.int_class->byval_arg;
4627         helper_sig_newarr_specific->params [1] = &mono_defaults.int32_class->byval_arg;
4628         helper_sig_newarr_specific->ret = &mono_defaults.object_class->byval_arg;
4629         helper_sig_newarr_specific->pinvoke = 1;
4630
4631         /* MonoObject * mono_object_new (MonoDomain *domain, MonoClass *klass) */
4632         helper_sig_object_new = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4633         helper_sig_object_new->params [0] = helper_sig_object_new->params [1] = &mono_defaults.int_class->byval_arg;
4634         helper_sig_object_new->ret = &mono_defaults.object_class->byval_arg;
4635         helper_sig_object_new->pinvoke = 1;
4636
4637         /* MonoObject * mono_object_new_specific (MonoVTable *vtable) */
4638         helper_sig_object_new_specific = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4639         helper_sig_object_new_specific->params [0] = &mono_defaults.int_class->byval_arg;
4640         helper_sig_object_new_specific->ret = &mono_defaults.object_class->byval_arg;
4641         helper_sig_object_new_specific->pinvoke = 1;
4642
4643         /* void* mono_method_compile (MonoMethod*) */
4644         helper_sig_compile = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4645         helper_sig_compile->params [0] = helper_sig_compile->ret = &mono_defaults.int_class->byval_arg;
4646         helper_sig_compile->pinvoke = 1;
4647
4648         /* void* mono_ldvirtfn (MonoObject *, MonoMethod*) */
4649         helper_sig_compile_virt = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4650         helper_sig_compile_virt->params [0] = &mono_defaults.object_class->byval_arg;
4651         helper_sig_compile_virt->params [1] = helper_sig_compile_virt->ret = &mono_defaults.int_class->byval_arg;
4652         helper_sig_compile_virt->pinvoke = 1;
4653
4654         /* MonoString* mono_ldstr (MonoDomain *domain, MonoImage *image, guint32 str_index) */
4655         helper_sig_ldstr = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4656         helper_sig_ldstr->params [0] = helper_sig_ldstr->params [1] = &mono_defaults.int_class->byval_arg;
4657         helper_sig_ldstr->params [2] = &mono_defaults.int32_class->byval_arg;
4658         helper_sig_ldstr->ret = &mono_defaults.object_class->byval_arg;
4659         helper_sig_ldstr->pinvoke = 1;
4660
4661         /* MonoDomain *mono_domain_get (void) */
4662         helper_sig_domain_get = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4663         helper_sig_domain_get->ret = &mono_defaults.int_class->byval_arg;
4664         helper_sig_domain_get->pinvoke = 1;
4665
4666         /* void* stelem_ref (MonoArray *, int index, MonoObject *) */
4667         helper_sig_stelem_ref = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4668         helper_sig_stelem_ref->params [0] = &mono_defaults.array_class->byval_arg;
4669         helper_sig_stelem_ref->params [1] = &mono_defaults.int32_class->byval_arg;
4670         helper_sig_stelem_ref->params [2] = &mono_defaults.object_class->byval_arg;
4671         helper_sig_stelem_ref->ret = &mono_defaults.void_class->byval_arg;
4672         helper_sig_stelem_ref->pinvoke = 1;
4673
4674         /* long amethod (long, long) */
4675         helper_sig_long_long_long = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4676         helper_sig_long_long_long->params [0] = helper_sig_long_long_long->params [1] =
4677                 &mono_defaults.int64_class->byval_arg;
4678         helper_sig_long_long_long->ret = &mono_defaults.int64_class->byval_arg;
4679         helper_sig_long_long_long->pinvoke = 1;
4680
4681         /* object  amethod (intptr) */
4682         helper_sig_obj_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4683         helper_sig_obj_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4684         helper_sig_obj_ptr->ret = &mono_defaults.object_class->byval_arg;
4685         helper_sig_obj_ptr->pinvoke = 1;
4686
4687         /* void amethod (intptr) */
4688         helper_sig_void_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4689         helper_sig_void_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4690         helper_sig_void_ptr->ret = &mono_defaults.void_class->byval_arg;
4691         helper_sig_void_ptr->pinvoke = 1;
4692
4693         /* void amethod (MonoObject *obj) */
4694         helper_sig_void_obj = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4695         helper_sig_void_obj->params [0] = &mono_defaults.object_class->byval_arg;
4696         helper_sig_void_obj->ret = &mono_defaults.void_class->byval_arg;
4697         helper_sig_void_obj->pinvoke = 1;
4698
4699         /* intptr amethod (void) */
4700         helper_sig_ptr_void = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4701         helper_sig_ptr_void->ret = &mono_defaults.int_class->byval_arg;
4702         helper_sig_ptr_void->pinvoke = 1;
4703
4704         /* void  amethod (intptr, intptr) */
4705         helper_sig_void_ptr_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4706         helper_sig_void_ptr_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4707         helper_sig_void_ptr_ptr->params [1] = &mono_defaults.int_class->byval_arg;
4708         helper_sig_void_ptr_ptr->ret = &mono_defaults.void_class->byval_arg;
4709         helper_sig_void_ptr_ptr->pinvoke = 1;
4710
4711         /* void  amethod (intptr, intptr, intptr) */
4712         helper_sig_void_ptr_ptr_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4713         helper_sig_void_ptr_ptr_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4714         helper_sig_void_ptr_ptr_ptr->params [1] = &mono_defaults.int_class->byval_arg;
4715         helper_sig_void_ptr_ptr_ptr->params [2] = &mono_defaults.int_class->byval_arg;
4716         helper_sig_void_ptr_ptr_ptr->ret = &mono_defaults.void_class->byval_arg;
4717         helper_sig_void_ptr_ptr_ptr->pinvoke = 1;
4718
4719         /* intptr  amethod (intptr, intptr) */
4720         helper_sig_ptr_ptr_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4721         helper_sig_ptr_ptr_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4722         helper_sig_ptr_ptr_ptr->params [1] = &mono_defaults.int_class->byval_arg;
4723         helper_sig_ptr_ptr_ptr->ret = &mono_defaults.int_class->byval_arg;
4724         helper_sig_ptr_ptr_ptr->pinvoke = 1;
4725
4726         /* IntPtr  amethod (object) */
4727         helper_sig_ptr_obj = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4728         helper_sig_ptr_obj->params [0] = &mono_defaults.object_class->byval_arg;
4729         helper_sig_ptr_obj->ret = &mono_defaults.int_class->byval_arg;
4730         helper_sig_ptr_obj->pinvoke = 1;
4731
4732         /* IntPtr  amethod (int) */
4733         helper_sig_ptr_int = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4734         helper_sig_ptr_int->params [0] = &mono_defaults.int32_class->byval_arg;
4735         helper_sig_ptr_int->ret = &mono_defaults.int_class->byval_arg;
4736         helper_sig_ptr_int->pinvoke = 1;
4737
4738         /* long amethod (long, guint32) */
4739         helper_sig_long_long_int = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4740         helper_sig_long_long_int->params [0] = &mono_defaults.int64_class->byval_arg;
4741         helper_sig_long_long_int->params [1] = &mono_defaults.int32_class->byval_arg;
4742         helper_sig_long_long_int->ret = &mono_defaults.int64_class->byval_arg;
4743         helper_sig_long_long_int->pinvoke = 1;
4744
4745         /* ulong amethod (double) */
4746         helper_sig_ulong_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4747         helper_sig_ulong_double->params [0] = &mono_defaults.double_class->byval_arg;
4748         helper_sig_ulong_double->ret = &mono_defaults.uint64_class->byval_arg;
4749         helper_sig_ulong_double->pinvoke = 1;
4750
4751         /* long amethod (double) */
4752         helper_sig_long_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4753         helper_sig_long_double->params [0] = &mono_defaults.double_class->byval_arg;
4754         helper_sig_long_double->ret = &mono_defaults.int64_class->byval_arg;
4755         helper_sig_long_double->pinvoke = 1;
4756
4757         /* uint amethod (double) */
4758         helper_sig_uint_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4759         helper_sig_uint_double->params [0] = &mono_defaults.double_class->byval_arg;
4760         helper_sig_uint_double->ret = &mono_defaults.uint32_class->byval_arg;
4761         helper_sig_uint_double->pinvoke = 1;
4762
4763         /* int amethod (double) */
4764         helper_sig_int_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4765         helper_sig_int_double->params [0] = &mono_defaults.double_class->byval_arg;
4766         helper_sig_int_double->ret = &mono_defaults.int32_class->byval_arg;
4767         helper_sig_int_double->pinvoke = 1;
4768
4769         /* void  initobj (intptr, int size) */
4770         helper_sig_initobj = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4771         helper_sig_initobj->params [0] = &mono_defaults.int_class->byval_arg;
4772         helper_sig_initobj->params [1] = &mono_defaults.int32_class->byval_arg;
4773         helper_sig_initobj->ret = &mono_defaults.void_class->byval_arg;
4774         helper_sig_initobj->pinvoke = 1;
4775
4776         /* void  memcpy (intptr, intptr, int size) */
4777         helper_sig_memcpy = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4778         helper_sig_memcpy->params [0] = &mono_defaults.int_class->byval_arg;
4779         helper_sig_memcpy->params [1] = &mono_defaults.int_class->byval_arg;
4780         helper_sig_memcpy->params [2] = &mono_defaults.int32_class->byval_arg;
4781         helper_sig_memcpy->ret = &mono_defaults.void_class->byval_arg;
4782         helper_sig_memcpy->pinvoke = 1;
4783
4784         /* void  memset (intptr, int val, int size) */
4785         helper_sig_memset = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4786         helper_sig_memset->params [0] = &mono_defaults.int_class->byval_arg;
4787         helper_sig_memset->params [1] = &mono_defaults.int32_class->byval_arg;
4788         helper_sig_memset->params [2] = &mono_defaults.int32_class->byval_arg;
4789         helper_sig_memset->ret = &mono_defaults.void_class->byval_arg;
4790         helper_sig_memset->pinvoke = 1;
4791 }
4792
4793 static GHashTable *jit_icall_hash_name = NULL;
4794 static GHashTable *jit_icall_hash_addr = NULL;
4795
4796 MonoJitICallInfo *
4797 mono_find_jit_icall_by_name (const char *name)
4798 {
4799         g_assert (jit_icall_hash_name);
4800
4801         //printf ("lookup addr %s %p\n", name, g_hash_table_lookup (jit_icall_hash_name, name));
4802         return g_hash_table_lookup (jit_icall_hash_name, name);
4803 }
4804
4805 MonoJitICallInfo *
4806 mono_find_jit_icall_by_addr (gconstpointer addr)
4807 {
4808         g_assert (jit_icall_hash_addr);
4809
4810         return g_hash_table_lookup (jit_icall_hash_addr, (gpointer)addr);
4811 }
4812
4813 MonoJitICallInfo *
4814 mono_register_jit_icall (gconstpointer func, const char *name, MonoMethodSignature *sig, gboolean is_save)
4815 {
4816         MonoJitICallInfo *info;
4817         MonoMethod *wrapper;
4818         char *n;
4819
4820         g_assert (func);
4821         g_assert (name);
4822
4823         if (!jit_icall_hash_name) {
4824                 jit_icall_hash_name = g_hash_table_new (g_str_hash, g_str_equal);
4825                 jit_icall_hash_addr = g_hash_table_new (NULL, NULL);
4826         }
4827
4828         if (g_hash_table_lookup (jit_icall_hash_name, name)) {
4829                 g_warning ("jit icall already defined \"%s\"\n", name);
4830                 g_assert_not_reached ();
4831         }
4832
4833         info = g_new (MonoJitICallInfo, 1);
4834
4835         info->name = g_strdup (name);
4836         info->func = func;
4837         info->sig = sig;
4838
4839         if (is_save
4840 #ifdef MONO_USE_EXC_TABLES
4841             || mono_arch_has_unwind_info (func)
4842 #endif
4843             ) {
4844                 info->wrapper = func;
4845         } else {
4846                 g_assert (sig);
4847                 n = g_strdup_printf ("__icall_wrapper_%s", name);
4848                 wrapper = mono_marshal_get_icall_wrapper (sig, n, func);
4849                 info->wrapper = mono_jit_compile_method (wrapper);
4850                 g_free (n);
4851         }
4852
4853         g_hash_table_insert (jit_icall_hash_name, info->name, info);
4854         g_hash_table_insert (jit_icall_hash_addr, (gpointer)func, info);
4855         if (func != info->wrapper)
4856                 g_hash_table_insert (jit_icall_hash_addr, (gpointer)info->wrapper, info);
4857
4858         return info;
4859 }
4860
4861 static GHashTable *emul_opcode_hash = NULL;
4862
4863 static MonoJitICallInfo *
4864 mono_find_jit_opcode_emulation (int opcode)
4865 {
4866         if  (emul_opcode_hash)
4867                 return g_hash_table_lookup (emul_opcode_hash, (gpointer)opcode);
4868         else
4869                 return NULL;
4870 }
4871
4872 void
4873 mono_register_opcode_emulation (int opcode, MonoMethodSignature *sig, gpointer func)
4874 {
4875         MonoJitICallInfo *info;
4876         char *name;
4877
4878         if (!emul_opcode_hash)
4879                 emul_opcode_hash = g_hash_table_new (NULL, NULL);
4880
4881         g_assert (!sig->hasthis);
4882         g_assert (sig->param_count < 3);
4883
4884         name = g_strdup_printf ("__emulate_%s",  mono_inst_name (opcode));
4885
4886         info = mono_register_jit_icall (func, name, sig, FALSE);
4887
4888         g_free (name);
4889
4890         g_hash_table_insert (emul_opcode_hash, (gpointer)opcode, info);
4891 }
4892
4893 static void
4894 decompose_foreach (MonoInst *tree, gpointer data)
4895 {
4896         static MonoJitICallInfo *newarr_info = NULL;
4897         static MonoJitICallInfo *newarr_specific_info = NULL;
4898         MonoJitICallInfo *info;
4899
4900         switch (tree->opcode) {
4901         case CEE_NEWARR: {
4902                 MonoCompile *cfg = data;
4903                 MonoInst *iargs [3];
4904
4905                 if (!newarr_info) {
4906                         newarr_info = mono_find_jit_icall_by_addr (mono_array_new);
4907                         g_assert (newarr_info);
4908                         newarr_specific_info = mono_find_jit_icall_by_addr (mono_array_new_specific);
4909                         g_assert (newarr_specific_info);
4910                 }
4911
4912                 if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot) {
4913                         NEW_DOMAINCONST (cfg, iargs [0]);
4914                         NEW_CLASSCONST (cfg, iargs [1], tree->inst_newa_class);
4915                         iargs [2] = tree->inst_newa_len;
4916
4917                         info = newarr_info;
4918                 }
4919                 else {
4920                         MonoVTable *vtable = mono_class_vtable (cfg->domain,
4921                                                                                                         mono_array_class_get (&tree->inst_newa_class->byval_arg, 1));
4922
4923                         NEW_PCONST (cfg, iargs [0], vtable);
4924                         iargs [1] = tree->inst_newa_len;
4925
4926                         info = newarr_specific_info;
4927                 }
4928
4929                 mono_emulate_opcode (cfg, tree, iargs, info);
4930                 break;
4931         }
4932
4933         default:
4934                 break;
4935         }
4936 }
4937
4938 void
4939 mono_inst_foreach (MonoInst *tree, MonoInstFunc func, gpointer data) {
4940
4941         switch (mono_burg_arity [tree->opcode]) {
4942         case 0: break;
4943         case 1:
4944                 mono_inst_foreach (tree->inst_left, func, data);
4945                 break;
4946         case 2:
4947                 mono_inst_foreach (tree->inst_left, func, data);
4948                 mono_inst_foreach (tree->inst_right, func, data);
4949                 break;
4950         default:
4951                 g_assert_not_reached ();
4952         }
4953         func (tree, data);
4954 }
4955
4956 #if 0
4957 static void
4958 mono_print_bb_code (MonoBasicBlock *bb) {
4959         if (bb->code) {
4960                 MonoInst *c = bb->code;
4961                 while (c) {
4962                         mono_print_tree (c);
4963                         g_print ("\n");
4964                         c = c->next;
4965                 }
4966         }
4967 }
4968 #endif
4969
4970 static void
4971 print_dfn (MonoCompile *cfg) {
4972         int i, j;
4973         char *code;
4974         MonoBasicBlock *bb;
4975
4976         g_print ("IR code for method %s\n", mono_method_full_name (cfg->method, TRUE));
4977
4978         for (i = 0; i < cfg->num_bblocks; ++i) {
4979                 bb = cfg->bblocks [i];
4980                 if (bb->cil_code) {
4981                         char* code1, *code2;
4982                         code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
4983                         if (bb->last_ins->cil_code)
4984                                 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
4985                         else
4986                                 code2 = g_strdup ("");
4987
4988                         code1 [strlen (code1) - 1] = 0;
4989                         code = g_strdup_printf ("%s -> %s", code1, code2);
4990                         g_free (code1);
4991                         g_free (code2);
4992                 } else
4993                         code = g_strdup ("\n");
4994                 g_print ("\nBB%d DFN%d (len: %d): %s", bb->block_num, i, bb->cil_length, code);
4995                 if (bb->code) {
4996                         MonoInst *c = bb->code;
4997                         while (c) {
4998                                 mono_print_tree (c);
4999                                 g_print ("\n");
5000                                 c = c->next;
5001                         }
5002                 } else {
5003
5004                 }
5005
5006                 g_print ("\tprev:");
5007                 for (j = 0; j < bb->in_count; ++j) {
5008                         g_print (" BB%d", bb->in_bb [j]->block_num);
5009                 }
5010                 g_print ("\t\tsucc:");
5011                 for (j = 0; j < bb->out_count; ++j) {
5012                         g_print (" BB%d", bb->out_bb [j]->block_num);
5013                 }
5014                 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
5015
5016                 if (bb->idom)
5017                         g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
5018
5019                 if (bb->dominators)
5020                         mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
5021                 if (bb->dfrontier)
5022                         mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
5023                 g_free (code);
5024         }
5025
5026         g_print ("\n");
5027 }
5028
5029 /*
5030  * returns the offset used by spillvar. It allocates a new
5031  * spill variable if necessary.
5032  */
5033 int
5034 mono_spillvar_offset (MonoCompile *cfg, int spillvar)
5035 {
5036         MonoSpillInfo **si, *info;
5037         int i = 0;
5038
5039         si = &cfg->spill_info;
5040
5041         while (i <= spillvar) {
5042
5043                 if (!*si) {
5044                         *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
5045                         info->next = NULL;
5046                         cfg->stack_offset -= sizeof (gpointer);
5047                         info->offset = cfg->stack_offset;
5048                 }
5049
5050                 if (i == spillvar)
5051                         return (*si)->offset;
5052
5053                 i++;
5054                 si = &(*si)->next;
5055         }
5056
5057         g_assert_not_reached ();
5058         return 0;
5059 }
5060
5061 void
5062 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
5063 {
5064         inst->next = NULL;
5065         if (bb->last_ins) {
5066                 g_assert (bb->code);
5067                 bb->last_ins->next = inst;
5068                 bb->last_ins = inst;
5069         } else {
5070                 bb->last_ins = bb->code = inst;
5071         }
5072 }
5073
5074 void
5075 mono_destroy_compile (MonoCompile *cfg)
5076 {
5077         //mono_mempool_stats (cfg->mempool);
5078         g_hash_table_destroy (cfg->bb_hash);
5079         if (cfg->rs)
5080                 mono_regstate_free (cfg->rs);
5081         mono_mempool_destroy (cfg->mempool);
5082         g_list_free (cfg->ldstr_list);
5083
5084         g_free (cfg->varinfo);
5085         g_free (cfg->vars);
5086         g_free (cfg);
5087 }
5088
5089 gpointer
5090 mono_get_lmf_addr (void)
5091 {
5092         MonoJitTlsData *jit_tls;
5093
5094         if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
5095                 return &jit_tls->lmf;
5096
5097         g_assert_not_reached ();
5098         return NULL;
5099 }
5100
5101 /**
5102  * mono_thread_abort:
5103  * @obj: exception object
5104  *
5105  * abort the thread, print exception information and stack trace
5106  */
5107 static void
5108 mono_thread_abort (MonoObject *obj)
5109 {
5110         MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
5111
5112         g_free (jit_tls);
5113
5114         ExitThread (-1);
5115 }
5116
5117 static void
5118 mono_thread_start_cb (guint32 tid, gpointer stack_start, gpointer func)
5119 {
5120         MonoJitTlsData *jit_tls;
5121         MonoLMF *lmf;
5122
5123         jit_tls = g_new0 (MonoJitTlsData, 1);
5124
5125         TlsSetValue (mono_jit_tls_id, jit_tls);
5126
5127         jit_tls->abort_func = mono_thread_abort;
5128         jit_tls->end_of_stack = stack_start;
5129
5130         lmf = g_new0 (MonoLMF, 1);
5131         lmf->ebp = -1;
5132
5133         jit_tls->lmf = lmf;
5134 }
5135
5136 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
5137
5138 static void
5139 mono_thread_abort_dummy (MonoObject *obj)
5140 {
5141   if (mono_thread_attach_aborted_cb)
5142     mono_thread_attach_aborted_cb (obj);
5143   else
5144     mono_thread_abort (obj);
5145 }
5146
5147 static void
5148 mono_thread_attach_cb (guint32 tid, gpointer stack_start)
5149 {
5150         MonoJitTlsData *jit_tls;
5151         MonoLMF *lmf;
5152
5153         jit_tls = g_new0 (MonoJitTlsData, 1);
5154
5155         TlsSetValue (mono_jit_tls_id, jit_tls);
5156
5157         jit_tls->abort_func = mono_thread_abort_dummy;
5158         jit_tls->end_of_stack = stack_start;
5159
5160         lmf = g_new0 (MonoLMF, 1);
5161         lmf->ebp = -1;
5162
5163         jit_tls->lmf = lmf;
5164 }
5165
5166 void
5167 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
5168 {
5169         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
5170
5171         ji->ip.i = ip;
5172         ji->type = type;
5173         ji->data.target = target;
5174         ji->next = cfg->patch_info;
5175
5176         cfg->patch_info = ji;
5177 }
5178
5179 void
5180 mono_remove_patch_info (MonoCompile *cfg, int ip)
5181 {
5182         MonoJumpInfo **ji = &cfg->patch_info;
5183
5184         while (*ji) {
5185                 if ((*ji)->ip.i == ip)
5186                         *ji = (*ji)->next;
5187                 else
5188                         ji = &((*ji)->next);
5189         }
5190 }
5191
5192 static void
5193 dec_foreach (MonoInst *tree, MonoCompile *cfg) {
5194         MonoJitICallInfo *info;
5195
5196         switch (mono_burg_arity [tree->opcode]) {
5197         case 0: break;
5198         case 1:
5199                 dec_foreach (tree->inst_left, cfg);
5200
5201                 if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
5202                         MonoInst *iargs [2];
5203
5204                         iargs [0] = tree->inst_left;
5205
5206                         mono_emulate_opcode (cfg, tree, iargs, info);
5207                         return;
5208                 }
5209
5210                 break;
5211         case 2:
5212                 if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
5213                         MonoInst *iargs [2];
5214
5215                         iargs [0] = tree->inst_i0;
5216                         iargs [1] = tree->inst_i1;
5217
5218                         mono_emulate_opcode (cfg, tree, iargs, info);
5219
5220                         dec_foreach (iargs [0], cfg);
5221                         dec_foreach (iargs [1], cfg);
5222                         return;
5223                 } else {
5224                         dec_foreach (tree->inst_left, cfg);
5225                         dec_foreach (tree->inst_right, cfg);
5226                 }
5227                 break;
5228         default:
5229                 g_assert_not_reached ();
5230         }
5231         decompose_foreach (tree, cfg);
5232 }
5233
5234 static void
5235 decompose_pass (MonoCompile *cfg) {
5236         MonoBasicBlock *bb;
5237
5238         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5239                 MonoInst *tree;
5240                 cfg->cbb = bb;
5241                 cfg->prev_ins = NULL;
5242                 for (tree = cfg->cbb->code; tree; tree = tree->next) {
5243                         dec_foreach (tree, cfg);
5244                         cfg->prev_ins = tree;
5245                 }
5246         }
5247 }
5248
5249 static void
5250 nullify_basic_block (MonoBasicBlock *bb)
5251 {
5252         bb->in_count = 0;
5253         bb->out_count = 0;
5254         bb->in_bb = NULL;
5255         bb->out_bb = NULL;
5256         bb->next_bb = NULL;
5257         bb->code = bb->last_ins = NULL;
5258 }
5259
5260 static void
5261 replace_basic_block (MonoBasicBlock *bb, MonoBasicBlock *orig,  MonoBasicBlock *repl)
5262 {
5263         int i, j;
5264
5265         for (i = 0; i < bb->out_count; i++) {
5266                 MonoBasicBlock *ob = bb->out_bb [i];
5267                 for (j = 0; j < ob->in_count; j++) {
5268                         if (ob->in_bb [j] == orig)
5269                                 ob->in_bb [j] = repl;
5270                 }
5271         }
5272
5273 }
5274
5275 static void
5276 merge_basic_blocks (MonoBasicBlock *bb, MonoBasicBlock *bbn)
5277 {
5278         bb->out_count = bbn->out_count;
5279         bb->out_bb = bbn->out_bb;
5280
5281         replace_basic_block (bb, bbn, bb);
5282
5283         if (bb->last_ins) {
5284                 if (bbn->code) {
5285                         bb->last_ins->next = bbn->code;
5286                         bb->last_ins = bbn->last_ins;
5287                 }
5288         } else {
5289                 bb->code = bbn->code;
5290                 bb->last_ins = bbn->last_ins;
5291         }
5292         bb->next_bb = bbn->next_bb;
5293         nullify_basic_block (bbn);
5294 }
5295
5296 static void
5297 optimize_branches (MonoCompile *cfg) {
5298         int changed = FALSE;
5299         MonoBasicBlock *bb, *bbn;
5300
5301         do {
5302                 changed = FALSE;
5303
5304                 /* we skip the entry block (exit is handled specially instead ) */
5305                 for (bb = cfg->bb_entry->next_bb; bb; bb = bb->next_bb) {
5306
5307                         /* dont touch code inside exception clauses */
5308                         if (bb->region != -1)
5309                                 continue;
5310
5311                         if (bb->out_count == 1) {
5312                                 bbn = bb->out_bb [0];
5313
5314                                 if (bb->region == bbn->region && bb->next_bb == bbn) {
5315                                 /* the block are in sequence anyway ... */
5316
5317                                         /*
5318                                          * miguel: I do not understand what the test below does, could we
5319                                          * use a macro, or a comment here?  opcode > CEE_BEQ && <= BLT_UN
5320                                          *
5321                                          * It could also test for bb->last_in only once, and the value
5322                                          * could be cached (last_ins->opcode)
5323                                          */
5324                                         if (bb->last_ins && (bb->last_ins->opcode == CEE_BR || (
5325                                                 (bb->last_ins && bb->last_ins->opcode >= CEE_BEQ && bb->last_ins->opcode <= CEE_BLT_UN)))) {
5326                                                 bb->last_ins->opcode = CEE_NOP;
5327                                                 changed = TRUE;
5328                                                 if (cfg->verbose_level > 2)
5329                                                         g_print ("br removal triggered %d -> %d\n", bb->block_num, bbn->block_num);
5330                                         }
5331                                         /* fixme: this causes problems with inlining */
5332                                         if (bbn->in_count == 1) {
5333
5334                                                 if (bbn != cfg->bb_exit) {
5335                                                         if (cfg->verbose_level > 2)
5336                                                                 g_print ("block merge triggered %d -> %d\n", bb->block_num, bbn->block_num);
5337                                                         merge_basic_blocks (bb, bbn);
5338                                                         changed = TRUE;
5339                                                 }
5340
5341                                                 //mono_print_bb_code (bb);
5342                                         }
5343                                 } else {
5344                                         if (bb->last_ins && bb->last_ins->opcode == CEE_BR) {
5345                                                 bbn = bb->last_ins->inst_target_bb;
5346                                                 if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR) {
5347                                                         /*
5348                                                         if (cfg->verbose_level > 2)
5349                                                                 g_print ("in %s branch to branch triggered %d -> %d\n", cfg->method->name, bb->block_num, bbn->block_num);
5350                                                         bb->out_bb [0] = bb->last_ins->inst_target_bb = bbn->code->inst_target_bb;
5351                                                         changed = TRUE;*/
5352                                                 }
5353                                         }
5354                                 }
5355                         } else if (bb->out_count == 2) {
5356                                 /* fixme: this does not correctly unlink the blocks, so we get serious problems in idom code */
5357                                 if (0 && bb->last_ins && bb->last_ins->opcode >= CEE_BEQ && bb->last_ins->opcode <= CEE_BLT_UN) {
5358                                         bbn = bb->last_ins->inst_true_bb;
5359                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR) {
5360                                                 if (cfg->verbose_level > 2)
5361                                                         g_print ("cbranch to branch triggered %d -> %d (0x%02x)\n", bb->block_num,
5362                                                                  bbn->block_num, bbn->code->opcode);
5363
5364                                                 if (bb->out_bb [0] == bbn) {
5365                                                         bb->out_bb [0] = bbn->code->inst_target_bb;
5366                                                 } else if (bb->out_bb [1] == bbn) {
5367                                                         bb->out_bb [1] = bbn->code->inst_target_bb;
5368                                                 }
5369                                                 bb->last_ins->inst_true_bb = bbn->code->inst_target_bb;
5370                                                 changed = TRUE;
5371                                         }
5372                                 }
5373                         }
5374                 }
5375         } while (changed);
5376 }
5377
5378 static void
5379 mono_compile_create_vars (MonoCompile *cfg)
5380 {
5381         MonoMethodSignature *sig;
5382         MonoMethodHeader *header;
5383         int i;
5384
5385         header = ((MonoMethodNormal *)cfg->method)->header;
5386
5387         sig = cfg->method->signature;
5388
5389         if (!MONO_TYPE_IS_VOID (sig->ret)) {
5390                 cfg->ret = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
5391                 cfg->ret->opcode = OP_RETARG;
5392                 cfg->ret->inst_vtype = sig->ret;
5393                 cfg->ret->klass = mono_class_from_mono_type (sig->ret);
5394         }
5395
5396         if (sig->hasthis)
5397                 mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
5398
5399         for (i = 0; i < sig->param_count; ++i)
5400                 mono_compile_create_var (cfg, sig->params [i], OP_ARG);
5401
5402         cfg->locals_start = cfg->num_varinfo;
5403
5404         for (i = 0; i < header->num_locals; ++i)
5405                 mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
5406 }
5407
5408 #if 0
5409 static void
5410 mono_print_code (MonoCompile *cfg)
5411 {
5412         MonoBasicBlock *bb;
5413
5414         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5415                 MonoInst *tree = bb->code;
5416
5417                 if (!tree)
5418                         continue;
5419
5420                 g_print ("CODE BLOCK %d (nesting %d):\n", bb->block_num, bb->nesting);
5421
5422                 for (; tree; tree = tree->next) {
5423                         mono_print_tree (tree);
5424                         g_print ("\n");
5425                 }
5426
5427                 if (bb->last_ins)
5428                         bb->last_ins->next = NULL;
5429         }
5430 }
5431 #endif
5432
5433 extern const char * const mono_burg_rule_string [];
5434
5435 static void
5436 emit_state (MonoCompile *cfg, MBState *state, int goal)
5437 {
5438         MBState *kids [10];
5439         int ern = mono_burg_rule (state, goal);
5440         const guint16 *nts = mono_burg_nts [ern];
5441         MBEmitFunc emit;
5442
5443         //g_print ("rule: %s\n", mono_burg_rule_string [ern]);
5444         switch (goal) {
5445         case MB_NTERM_reg:
5446                 //if (state->reg2)
5447                 //      state->reg1 = state->reg2; /* chain rule */
5448                 //else
5449                 state->reg1 = mono_regstate_next_int (cfg->rs);
5450                 //g_print ("alloc symbolic R%d (reg2: R%d) in block %d\n", state->reg1, state->reg2, cfg->cbb->block_num);
5451                 break;
5452         case MB_NTERM_lreg:
5453                 state->reg1 = mono_regstate_next_int (cfg->rs);
5454                 state->reg2 = mono_regstate_next_int (cfg->rs);
5455                 break;
5456         case MB_NTERM_freg:
5457                 state->reg1 = mono_regstate_next_float (cfg->rs);
5458                 break;
5459         default:
5460                 /* do nothing */
5461                 break;
5462         }
5463         if (nts [0]) {
5464                 mono_burg_kids (state, ern, kids);
5465
5466                 emit_state (cfg, kids [0], nts [0]);
5467                 if (nts [1]) {
5468                         emit_state (cfg, kids [1], nts [1]);
5469                         if (nts [2]) {
5470                                 g_assert (!nts [3]);
5471                                 emit_state (cfg, kids [2], nts [2]);
5472                         }
5473                 }
5474         }
5475
5476 //      g_print ("emit: %s (%p)\n", mono_burg_rule_string [ern], state);
5477         if ((emit = mono_burg_func [ern]))
5478                 emit (state, state->tree, cfg);
5479 }
5480
5481 #define DEBUG_SELECTION
5482
5483 static void
5484 mini_select_instructions (MonoCompile *cfg)
5485 {
5486         MonoBasicBlock *bb;
5487
5488         cfg->state_pool = mono_mempool_new ();
5489         cfg->rs = mono_regstate_new ();
5490
5491 #ifdef DEBUG_SELECTION
5492         if (cfg->verbose_level >= 4) {
5493         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5494                 MonoInst *tree = bb->code;
5495                 g_print ("DUMP BLOCK %d:\n", bb->block_num);
5496                 if (!tree)
5497                         continue;
5498                 for (; tree; tree = tree->next) {
5499                         mono_print_tree (tree);
5500                         g_print ("\n");
5501                 }
5502         }
5503         }
5504 #endif
5505
5506         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5507                 MonoInst *tree = bb->code, *next;
5508                 MBState *mbstate;
5509
5510                 if (!tree)
5511                         continue;
5512                 bb->code = NULL;
5513                 bb->last_ins = NULL;
5514
5515                 cfg->cbb = bb;
5516                 mono_regstate_reset (cfg->rs);
5517
5518 #ifdef DEBUG_SELECTION
5519                 if (cfg->verbose_level >= 3)
5520                         g_print ("LABEL BLOCK %d:\n", bb->block_num);
5521 #endif
5522                 for (; tree; tree = next) {
5523                         next = tree->next;
5524 #ifdef DEBUG_SELECTION
5525                         if (cfg->verbose_level >= 3) {
5526                                 mono_print_tree (tree);
5527                                 g_print ("\n");
5528                         }
5529 #endif
5530
5531                         if (!(mbstate = mono_burg_label (tree, cfg))) {
5532                                 g_warning ("unabled to label tree %p", tree);
5533                                 mono_print_tree (tree);
5534                                 g_print ("\n");
5535                                 g_assert_not_reached ();
5536                         }
5537                         emit_state (cfg, mbstate, MB_NTERM_stmt);
5538                 }
5539                 bb->max_ireg = cfg->rs->next_vireg;
5540                 bb->max_freg = cfg->rs->next_vfreg;
5541
5542                 if (bb->last_ins)
5543                         bb->last_ins->next = NULL;
5544
5545                 mono_mempool_empty (cfg->state_pool);
5546         }
5547         mono_mempool_destroy (cfg->state_pool);
5548 }
5549
5550 void
5551 mono_codegen (MonoCompile *cfg)
5552 {
5553         MonoJumpInfo *patch_info;
5554         MonoBasicBlock *bb;
5555         int i, max_epilog_size;
5556         guint8 *code;
5557
5558         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5559                 cfg->spill_count = 0;
5560                 /* we reuse dfn here */
5561                 /* bb->dfn = bb_count++; */
5562                 mono_arch_local_regalloc (cfg, bb);
5563         }
5564
5565         if (mono_trace_coverage)
5566                 mono_allocate_coverage_info (cfg->method, cfg->num_bblocks);
5567
5568         code = mono_arch_emit_prolog (cfg);
5569
5570         if (mono_jit_profile)
5571                 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
5572
5573         cfg->code_len = code - cfg->native_code;
5574         cfg->prolog_end = cfg->code_len;
5575
5576         mono_debug_open_method (cfg);
5577
5578         /* emit code all basic blocks */
5579         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5580                 bb->native_offset = cfg->code_len;
5581                 mono_arch_output_basic_block (cfg, bb);
5582         }
5583         cfg->bb_exit->native_offset = cfg->code_len;
5584
5585         code = cfg->native_code + cfg->code_len;
5586
5587         max_epilog_size = mono_arch_max_epilog_size (cfg);
5588
5589         /* we always allocate code in cfg->domain->code_mp to increase locality */
5590         cfg->code_size = cfg->code_len + max_epilog_size;
5591         /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
5592         code = mono_mempool_alloc (cfg->domain->code_mp, cfg->code_size);
5593         memcpy (code, cfg->native_code, cfg->code_len);
5594         g_free (cfg->native_code);
5595         cfg->native_code = code;
5596         code = cfg->native_code + cfg->code_len;
5597
5598         /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
5599
5600         cfg->epilog_begin = cfg->code_len;
5601
5602         if (mono_jit_profile)
5603                 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
5604
5605         cfg->code_len = code - cfg->native_code;
5606
5607         mono_arch_emit_epilog (cfg);
5608
5609         for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5610                 switch (patch_info->type) {
5611                 case MONO_PATCH_INFO_ABS: {
5612                         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
5613                         if (info) {
5614                                 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
5615                                 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5616                                 patch_info->data.name = info->name;
5617                         }
5618                         break;
5619                 }
5620                 case MONO_PATCH_INFO_SWITCH: {
5621                         gpointer *table = g_new (gpointer, patch_info->table_size);
5622                         patch_info->ip.i = patch_info->ip.label->inst_c0;
5623                         for (i = 0; i < patch_info->table_size; i++) {
5624                                 table [i] = (gpointer)patch_info->data.table [i]->native_offset;
5625                         }
5626                         patch_info->data.target = table;
5627                         break;
5628                 }
5629                 default:
5630                         /* do nothing */
5631                         break;
5632                 }
5633         }
5634
5635         if (cfg->verbose_level > 1)
5636                 g_print ("Method %s::%s emmitted at %p to %p\n", cfg->method->klass->name,
5637                          cfg->method->name, cfg->native_code, cfg->native_code + cfg->code_len);
5638
5639         mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info);
5640
5641         mono_debug_close_method (cfg);
5642 }
5643
5644 static void
5645 mono_cprop_copy_values (MonoCompile *cfg, MonoInst *tree, MonoInst **acp)
5646 {
5647         MonoInst *cp;
5648         int arity;
5649
5650         if (tree->ssa_op == MONO_SSA_LOAD && (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG) &&
5651             (cp = acp [tree->inst_i0->inst_c0]) && !tree->inst_i0->flags) {
5652
5653                 if (cp->opcode == OP_ICONST) {
5654                         if (cfg->opt & MONO_OPT_CONSPROP) {
5655                                 //{ static int c = 0; printf ("CCOPY %d %d %s\n", c++, cp->inst_c0, mono_method_full_name (cfg->method, TRUE)); }
5656                                 *tree = *cp;
5657                         }
5658                 } else {
5659                         if (tree->inst_i0->inst_vtype->type == cp->inst_vtype->type) {
5660                                 if (cfg->opt & MONO_OPT_COPYPROP) {
5661                                         //{ static int c = 0; printf ("VCOPY %d\n", ++c); }
5662                                         tree->inst_i0 = cp;
5663                                 }
5664                         }
5665                 }
5666         } else {
5667                 arity = mono_burg_arity [tree->opcode];
5668
5669                 if (arity) {
5670                         mono_cprop_copy_values (cfg, tree->inst_i0, acp);
5671                         if (cfg->opt & MONO_OPT_CFOLD)
5672                                 mono_constant_fold_inst (tree, NULL);
5673                         if (arity > 1) {
5674                                 mono_cprop_copy_values (cfg, tree->inst_i1, acp);
5675                                 if (cfg->opt & MONO_OPT_CFOLD)
5676                                         mono_constant_fold_inst (tree, NULL);
5677                         }
5678                         mono_constant_fold_inst (tree, NULL);
5679                 }
5680         }
5681 }
5682
5683 static void
5684 mono_cprop_invalidate_values (MonoInst *tree, MonoInst **acp, int acp_size)
5685 {
5686         int arity;
5687
5688         switch (tree->opcode) {
5689         case CEE_STIND_I:
5690         case CEE_STIND_I1:
5691         case CEE_STIND_I2:
5692         case CEE_STIND_I4:
5693         case CEE_STIND_REF:
5694         case CEE_STIND_I8:
5695         case CEE_STIND_R4:
5696         case CEE_STIND_R8:
5697         case CEE_STOBJ:
5698                 if (tree->ssa_op == MONO_SSA_NOP) {
5699                         memset (acp, 0, sizeof (MonoInst *) * acp_size);
5700                         return;
5701                 }
5702
5703                 break;
5704         case CEE_CALL:
5705         case OP_CALL_REG:
5706         case CEE_CALLVIRT:
5707         case OP_LCALL_REG:
5708         case OP_LCALLVIRT:
5709         case OP_LCALL:
5710         case OP_FCALL_REG:
5711         case OP_FCALLVIRT:
5712         case OP_FCALL:
5713         case OP_VCALL_REG:
5714         case OP_VCALLVIRT:
5715         case OP_VCALL:
5716         case OP_VOIDCALL_REG:
5717         case OP_VOIDCALLVIRT:
5718         case OP_VOIDCALL: {
5719                 MonoCallInst *call = (MonoCallInst *)tree;
5720                 MonoMethodSignature *sig = call->signature;
5721                 int i, byref = FALSE;
5722
5723                 for (i = 0; i < sig->param_count; i++) {
5724                         if (sig->params [i]->byref) {
5725                                 byref = TRUE;
5726                                 break;
5727                         }
5728                 }
5729
5730                 if (byref)
5731                         memset (acp, 0, sizeof (MonoInst *) * acp_size);
5732
5733                 return;
5734         }
5735         default:
5736                 break;
5737         }
5738
5739         arity = mono_burg_arity [tree->opcode];
5740
5741         switch (arity) {
5742         case 0:
5743                 break;
5744         case 1:
5745                 mono_cprop_invalidate_values (tree->inst_i0, acp, acp_size);
5746                 break;
5747         case 2:
5748                 mono_cprop_invalidate_values (tree->inst_i0, acp, acp_size);
5749                 mono_cprop_invalidate_values (tree->inst_i1, acp, acp_size);
5750                 break;
5751         default:
5752                 g_assert_not_reached ();
5753         }
5754 }
5755
5756 static void
5757 mono_local_cprop_bb (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **acp, int acp_size)
5758 {
5759         MonoInst *tree = bb->code;
5760         int i;
5761
5762         if (!tree)
5763                 return;
5764
5765         for (; tree; tree = tree->next) {
5766
5767                 mono_cprop_copy_values (cfg, tree, acp);
5768
5769                 mono_cprop_invalidate_values (tree, acp, acp_size);
5770
5771                 if (tree->ssa_op == MONO_SSA_STORE  &&
5772                     (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG)) {
5773                         MonoInst *i1 = tree->inst_i1;
5774
5775                         acp [tree->inst_i0->inst_c0] = NULL;
5776
5777                         for (i = 0; i < acp_size; i++) {
5778                                 if (acp [i] && acp [i]->opcode != OP_ICONST &&
5779                                     acp [i]->inst_c0 == tree->inst_i0->inst_c0) {
5780                                         acp [i] = NULL;
5781                                 }
5782                         }
5783
5784                         if (i1->opcode == OP_ICONST) {
5785                                 acp [tree->inst_i0->inst_c0] = i1;
5786                                 //printf ("DEF1 BB%d %d\n", bb->block_num,tree->inst_i0->inst_c0);
5787                         }
5788                         if (i1->ssa_op == MONO_SSA_LOAD &&
5789                             (i1->inst_i0->opcode == OP_LOCAL || i1->inst_i0->opcode == OP_ARG) &&
5790                             (i1->inst_i0->inst_c0 != tree->inst_i0->inst_c0)) {
5791                                 acp [tree->inst_i0->inst_c0] = i1->inst_i0;
5792                                 //printf ("DEF2 BB%d %d %d\n", bb->block_num,tree->inst_i0->inst_c0,i1->inst_i0->inst_c0);
5793                         }
5794                 }
5795
5796                 /*
5797                   if (tree->opcode == CEE_BEQ) {
5798                   g_assert (tree->inst_i0->opcode == OP_COMPARE);
5799                   if (tree->inst_i0->inst_i0->opcode == OP_ICONST &&
5800                   tree->inst_i0->inst_i1->opcode == OP_ICONST) {
5801
5802                   tree->opcode = CEE_BR;
5803                   if (tree->inst_i0->inst_i0->opcode == tree->inst_i0->inst_i1->opcode) {
5804                   tree->inst_target_bb = tree->inst_true_bb;
5805                   } else {
5806                   tree->inst_target_bb = tree->inst_false_bb;
5807                   }
5808                   }
5809                   }
5810                 */
5811         }
5812 }
5813
5814 static void
5815 mono_local_cprop (MonoCompile *cfg)
5816 {
5817         MonoBasicBlock *bb;
5818         MonoInst **acp;
5819
5820         acp = alloca (sizeof (MonoInst *) * cfg->num_varinfo);
5821
5822         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5823                 memset (acp, 0, sizeof (MonoInst *) * cfg->num_varinfo);
5824                 mono_local_cprop_bb (cfg, bb, acp, cfg->num_varinfo);
5825         }
5826 }
5827
5828 MonoCompile*
5829 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, int parts)
5830 {
5831         MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
5832         guint8 *ip = (guint8 *)header->code;
5833         MonoCompile *cfg;
5834         MonoJitInfo *jinfo;
5835         int dfn = 0, i, code_size_ratio;
5836
5837         mono_jit_stats.methods_compiled++;
5838         if (mono_jit_profile)
5839                 mono_profiler_method_jit (method);
5840
5841         cfg = g_new0 (MonoCompile, 1);
5842         cfg->method = method;
5843         cfg->mempool = mono_mempool_new ();
5844         cfg->opt = opts;
5845         cfg->bb_hash = g_hash_table_new (g_direct_hash, NULL);
5846         cfg->domain = domain;
5847         cfg->verbose_level = mini_verbose;
5848         cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX *
5849                                             ((MonoMethodNormal *)method)->header->max_stack);
5850
5851         /*
5852          * create MonoInst* which represents arguments and local variables
5853          */
5854         mono_compile_create_vars (cfg);
5855
5856         if (cfg->verbose_level > 2)
5857                 g_print ("converting method %s\n", mono_method_full_name (method, TRUE));
5858
5859         if ((i = mono_method_to_ir (cfg, method, NULL, NULL, cfg->locals_start, NULL, NULL, NULL, 0, FALSE)) < 0) {
5860                 mono_destroy_compile (cfg);
5861                 if (mono_jit_profile)
5862                         mono_profiler_method_end_jit (method, MONO_PROFILE_FAILED);
5863                 return NULL;
5864         }
5865
5866         mono_jit_stats.basic_blocks += cfg->num_bblocks;
5867         mono_jit_stats.max_basic_blocks = MAX (cfg->num_bblocks, mono_jit_stats.max_basic_blocks);
5868
5869         /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
5870
5871         /* Depth-first ordering on basic blocks */
5872         cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
5873
5874         if (cfg->opt & MONO_OPT_BRANCH)
5875                 optimize_branches (cfg);
5876
5877         df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
5878         if (cfg->num_bblocks != dfn + 1) {
5879                 if (cfg->verbose_level > 1)
5880                         g_print ("unreachable code?\n");
5881                 cfg->num_bblocks = dfn + 1;
5882         }
5883
5884         if (cfg->opt & MONO_OPT_LOOP) {
5885                 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
5886                 mono_compute_natural_loops (cfg);
5887         }
5888
5889
5890         /* after method_to_ir */
5891         if (parts == 1)
5892                 return cfg;
5893
5894 //#define DEBUGSSA "logic_run"
5895 #define DEBUGSSA_CLASS "Tests"
5896 #ifdef DEBUGSSA
5897
5898
5899         if (!header->num_clauses && !cfg->disable_ssa) {
5900                 mono_local_cprop (cfg);
5901                 mono_ssa_compute (cfg);
5902         }
5903 #else
5904
5905         /* fixme: add all optimizations which requires SSA */
5906         if (cfg->opt & (MONO_OPT_DEADCE)) {
5907                 if (!(cfg->comp_done & MONO_COMP_SSA) && !header->num_clauses && !cfg->disable_ssa) {
5908                         mono_local_cprop (cfg);
5909                         mono_ssa_compute (cfg);
5910
5911                         if (cfg->verbose_level >= 2) {
5912                                 print_dfn (cfg);
5913                         }
5914                 }
5915         }
5916 #endif
5917
5918         /* after SSA translation */
5919         if (parts == 2)
5920                 return cfg;
5921
5922         if ((cfg->opt & MONO_OPT_CONSPROP) ||  (cfg->opt & MONO_OPT_COPYPROP)) {
5923                 if (cfg->comp_done & MONO_COMP_SSA) {
5924                         mono_ssa_cprop (cfg);
5925                 } else {
5926                         mono_local_cprop (cfg);
5927                 }
5928         }
5929
5930         if (cfg->comp_done & MONO_COMP_SSA) {
5931                 mono_ssa_deadce (cfg);
5932
5933                 //mono_ssa_strength_reduction (cfg);
5934
5935                 mono_ssa_remove (cfg);
5936
5937                 if (cfg->opt & MONO_OPT_BRANCH)
5938                         optimize_branches (cfg);
5939         }
5940
5941         /* after SSA removal */
5942         if (parts == 3)
5943                 return cfg;
5944
5945         decompose_pass (cfg);
5946
5947         /* FIXME: disabled with exception clauses: bug #42136 */
5948         if ((!header->num_clauses) && (cfg->opt & MONO_OPT_LINEARS)) {
5949                 GList *vars, *regs;
5950
5951                 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
5952                 cfg->comp_done &= ~MONO_COMP_LIVENESS;
5953                 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
5954                         mono_analyze_liveness (cfg);
5955
5956                 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
5957                         regs = mono_arch_get_global_int_regs (cfg);
5958                         mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
5959                 }
5960         }
5961
5962         //mono_print_code (cfg);
5963
5964         //print_dfn (cfg);
5965
5966         /* variables are allocated after decompose, since decompose could create temps */
5967         mono_arch_allocate_vars (cfg);
5968
5969         if (cfg->opt & MONO_OPT_CFOLD)
5970                 mono_constant_fold (cfg);
5971
5972         mini_select_instructions (cfg);
5973
5974         mono_codegen (cfg);
5975         if (cfg->verbose_level >= 2) {
5976                 char *id =  mono_method_full_name (cfg->method, FALSE);
5977                 mono_disassemble_code (cfg->native_code, cfg->code_len, id + 3);
5978                 g_free (id);
5979         }
5980
5981         jinfo = mono_mempool_alloc0 (cfg->domain->mp, sizeof (MonoJitInfo));
5982
5983         jinfo = g_new0 (MonoJitInfo, 1);
5984         jinfo->method = method;
5985         jinfo->code_start = cfg->native_code;
5986         jinfo->code_size = cfg->code_len;
5987         jinfo->used_regs = cfg->used_int_regs;
5988
5989         if (header->num_clauses) {
5990                 int i;
5991
5992                 jinfo->exvar_offset = cfg->exvar? cfg->exvar->inst_offset: 0;
5993                 jinfo->num_clauses = header->num_clauses;
5994                 jinfo->clauses = mono_mempool_alloc0 (cfg->domain->mp,
5995                         sizeof (MonoJitExceptionInfo) * header->num_clauses);
5996
5997                 for (i = 0; i < header->num_clauses; i++) {
5998                         MonoExceptionClause *ec = &header->clauses [i];
5999                         MonoJitExceptionInfo *ei = &jinfo->clauses [i];
6000                         MonoBasicBlock *tblock;
6001
6002                         ei->flags = ec->flags;
6003
6004                         if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
6005                                 tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->token_or_filter);
6006                                 g_assert (tblock);
6007                                 ei->data.filter = cfg->native_code + tblock->native_offset;
6008                         } else {
6009                                 ei->data.token = ec->token_or_filter;
6010                         }
6011
6012                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset);
6013                         g_assert (tblock);
6014                         ei->try_start = cfg->native_code + tblock->native_offset;
6015                         g_assert (tblock->native_offset);
6016                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset + ec->try_len);
6017                         g_assert (tblock);
6018                         ei->try_end = cfg->native_code + tblock->native_offset;
6019                         g_assert (tblock->native_offset);
6020                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->handler_offset);
6021                         g_assert (tblock);
6022                         ei->handler_start = cfg->native_code + tblock->native_offset;
6023                 }
6024         }
6025
6026         mono_jit_info_table_add (cfg->domain, jinfo);
6027
6028         /* collect statistics */
6029         mono_jit_stats.allocated_code_size += cfg->code_len;
6030         code_size_ratio = cfg->code_len;
6031         if (code_size_ratio > mono_jit_stats.biggest_method_size) {
6032                         mono_jit_stats.biggest_method_size = code_size_ratio;
6033                         mono_jit_stats.biggest_method = method;
6034         }
6035         code_size_ratio = (code_size_ratio * 100) / ((MonoMethodNormal *)method)->header->code_size;
6036         if (code_size_ratio > mono_jit_stats.max_code_size_ratio) {
6037                 mono_jit_stats.max_code_size_ratio = code_size_ratio;
6038                 mono_jit_stats.max_ratio_method = method;
6039         }
6040         mono_jit_stats.native_code_size += cfg->code_len;
6041
6042         if (mono_jit_profile)
6043                 mono_profiler_method_end_jit (method, MONO_PROFILE_OK);
6044
6045         return cfg;
6046 }
6047
6048 static gpointer
6049 mono_jit_compile_method (MonoMethod *method)
6050 {
6051         /* FIXME: later copy the code from mono */
6052         MonoDomain *target_domain, *domain = mono_domain_get ();
6053         MonoCompile *cfg;
6054         GHashTable *jit_code_hash;
6055         gpointer code;
6056
6057         if (default_opt & MONO_OPT_SHARED)
6058                 target_domain = mono_root_domain;
6059         else
6060                 target_domain = domain;
6061
6062         jit_code_hash = target_domain->jit_code_hash;
6063
6064         if ((code = g_hash_table_lookup (jit_code_hash, method))) {
6065                 mono_jit_stats.methods_lookups++;
6066                 return code;
6067         }
6068
6069 #ifdef MONO_USE_AOT_COMPILER
6070         if (!mono_compile_aot) {
6071                 mono_class_init (method->klass);
6072                 if ((code = mono_aot_get_method (method))) {
6073                         g_hash_table_insert (jit_code_hash, method, code);
6074                         return code;
6075                 }
6076         }
6077 #endif
6078
6079         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
6080             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
6081                 if (!method->info) {
6082                         MonoMethod *nm;
6083
6084                         if (!method->addr && (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
6085                                 mono_lookup_pinvoke_call (method);
6086 #ifdef MONO_USE_EXC_TABLES
6087                         if (mono_method_blittable (method)) {
6088                                 method->info = method->addr;
6089                         } else {
6090 #endif
6091                                 nm = mono_marshal_get_native_wrapper (method);
6092                                 method->info = mono_compile_method (nm);
6093
6094                                 //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
6095                                 //mono_debug_add_wrapper (method, nm);
6096 #ifdef MONO_USE_EXC_TABLES
6097                         }
6098 #endif
6099                 }
6100                 return method->info;
6101         } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
6102                 const char *name = method->name;
6103                 MonoMethod *nm;
6104
6105                 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
6106                         if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
6107                                 /* FIXME: uhm, we need a wrapper to handle exceptions? */
6108                                 return (gpointer)mono_delegate_ctor;
6109                         } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
6110                                 nm = mono_marshal_get_delegate_invoke (method);
6111                                 return mono_jit_compile_method (nm);
6112                         } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
6113                                 nm = mono_marshal_get_delegate_begin_invoke (method);
6114                                 return mono_jit_compile_method (nm);
6115                         } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
6116                                 nm = mono_marshal_get_delegate_end_invoke (method);
6117                                 return mono_jit_compile_method (nm);
6118                         }
6119                 }
6120                 return NULL;
6121         }
6122
6123         cfg = mini_method_compile (method, default_opt, target_domain, 0);
6124         code = cfg->native_code;
6125         mono_destroy_compile (cfg);
6126
6127         g_hash_table_insert (jit_code_hash, method, code);
6128
6129         /* make sure runtime_init is called */
6130         mono_class_vtable (target_domain, method->klass);
6131
6132         return code;
6133 }
6134
6135 /**
6136  * mono_jit_runtime_invoke:
6137  * @method: the method to invoke
6138  * @obj: this pointer
6139  * @params: array of parameter values.
6140  * @exc: used to catch exceptions objects
6141  */
6142 static MonoObject*
6143 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
6144 {
6145         MonoMethod *invoke;
6146         MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc);
6147         invoke = mono_marshal_get_runtime_invoke (method);
6148         runtime_invoke = mono_jit_compile_method (invoke);
6149         return runtime_invoke (obj, params, exc);
6150 }
6151
6152 #ifdef PLATFORM_WIN32
6153 #define GET_CONTEXT \
6154         struct sigcontext *ctx = (struct sigcontext*)_dummy;
6155 #else
6156 #define GET_CONTEXT \
6157         void **_p = (void **)&_dummy; \
6158         struct sigcontext *ctx = (struct sigcontext *)++_p;
6159 #endif
6160
6161 static void
6162 sigfpe_signal_handler (int _dummy)
6163 {
6164         MonoException *exc;
6165         GET_CONTEXT
6166
6167         exc = mono_get_exception_divide_by_zero ();
6168
6169         mono_arch_handle_exception (ctx, exc, FALSE);
6170 }
6171
6172 static void
6173 sigill_signal_handler (int _dummy)
6174 {
6175         MonoException *exc;
6176         GET_CONTEXT
6177         exc = mono_get_exception_execution_engine ("SIGILL");
6178
6179         mono_arch_handle_exception (ctx, exc, FALSE);
6180 }
6181
6182 static void
6183 sigsegv_signal_handler (int _dummy)
6184 {
6185         MonoException *exc;
6186         GET_CONTEXT
6187
6188         exc = mono_get_exception_null_reference ();
6189
6190         mono_arch_handle_exception (ctx, exc, FALSE);
6191 }
6192
6193 static void
6194 sigusr1_signal_handler (int _dummy)
6195 {
6196         MonoThread *thread;
6197         GET_CONTEXT
6198
6199         thread = mono_thread_current ();
6200
6201         g_assert (thread->abort_exc);
6202
6203         mono_arch_handle_exception (ctx, thread->abort_exc, FALSE);
6204 }
6205
6206 static void
6207 mono_runtime_install_handlers (void)
6208 {
6209 #ifndef PLATFORM_WIN32
6210         struct sigaction sa;
6211 #endif
6212
6213 #ifdef PLATFORM_WIN32
6214         win32_seh_init();
6215         win32_seh_set_handler(SIGFPE, sigfpe_signal_handler);
6216         win32_seh_set_handler(SIGILL, sigill_signal_handler);
6217         win32_seh_set_handler(SIGSEGV, sigsegv_signal_handler);
6218 #else /* !PLATFORM_WIN32 */
6219
6220         /* libpthreads has its own implementation of sigaction(),
6221          * but it seems to work well with our current exception
6222          * handlers. If not we must call syscall directly instead
6223          * of sigaction */
6224
6225         /* catch SIGFPE */
6226         sa.sa_handler = sigfpe_signal_handler;
6227         sigemptyset (&sa.sa_mask);
6228         sa.sa_flags = 0;
6229         //g_assert (syscall (SYS_sigaction, SIGFPE, &sa, NULL) != -1);
6230         g_assert (sigaction (SIGFPE, &sa, NULL) != -1);
6231
6232         /* catch SIGILL */
6233         sa.sa_handler = sigill_signal_handler;
6234         sigemptyset (&sa.sa_mask);
6235         sa.sa_flags = 0;
6236         //g_assert (syscall (SYS_sigaction, SIGILL, &sa, NULL) != -1);
6237         g_assert (sigaction (SIGILL, &sa, NULL) != -1);
6238
6239         /* catch thread abort signal */
6240         sa.sa_handler = sigusr1_signal_handler;
6241         sigemptyset (&sa.sa_mask);
6242         sa.sa_flags = 0;
6243         //g_assert (syscall (SYS_sigaction, SIGILL, &sa, NULL) != -1);
6244         g_assert (sigaction (mono_thread_get_abort_signal (), &sa, NULL) != -1);
6245
6246 #if 1
6247         /* catch SIGSEGV */
6248         sa.sa_handler = sigsegv_signal_handler;
6249         sigemptyset (&sa.sa_mask);
6250         sa.sa_flags = 0;
6251         //g_assert (syscall (SYS_sigaction, SIGSEGV, &sa, NULL) != -1);
6252         g_assert (sigaction (SIGSEGV, &sa, NULL) != -1);
6253 #endif
6254 #endif /* PLATFORM_WIN32 */
6255 }
6256
6257 /* mono_jit_create_remoting_trampoline:
6258  * @method: pointer to the method info
6259  *
6260  * Creates a trampoline which calls the remoting functions. This
6261  * is used in the vtable of transparent proxies.
6262  *
6263  * Returns: a pointer to the newly created code
6264  */
6265 static gpointer
6266 mono_jit_create_remoting_trampoline (MonoMethod *method)
6267 {
6268         MonoMethod *nm;
6269         guint8 *addr = NULL;
6270
6271         if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
6272             (method->signature->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class))) {
6273                 nm = mono_marshal_get_remoting_invoke (method);
6274                 addr = mono_compile_method (nm);
6275         } else {
6276                 addr = mono_compile_method (method);
6277         }
6278         return addr;
6279 }
6280
6281 static CRITICAL_SECTION ms;
6282
6283 MonoDomain *
6284 mini_init (const char *filename)
6285 {
6286         MonoDomain *domain;
6287
6288         metadata_section = &ms;
6289         InitializeCriticalSection (metadata_section);
6290
6291         mono_jit_tls_id = TlsAlloc ();
6292         mono_thread_start_cb (GetCurrentThreadId (), (gpointer)-1, NULL);
6293
6294         mono_burg_init ();
6295
6296         mono_runtime_install_handlers ();
6297
6298         mono_install_compile_method (mono_jit_compile_method);
6299         mono_install_trampoline (mono_arch_create_jit_trampoline);
6300         mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
6301         mono_install_runtime_invoke (mono_jit_runtime_invoke);
6302         mono_install_handler (mono_arch_get_throw_exception ());
6303         mono_install_stack_walk (mono_jit_walk_stack);
6304         mono_install_get_config_dir ();
6305
6306         domain = mono_init (filename);
6307         mono_init_icall ();
6308
6309         mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
6310                                 ves_icall_get_frame_info);
6311         mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
6312                                 ves_icall_get_trace);
6313         mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
6314                                 mono_runtime_install_handlers);
6315
6316
6317         create_helper_signature ();
6318
6319         mono_arch_register_lowlevel_calls ();
6320         mono_register_jit_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
6321         mono_register_jit_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
6322
6323         mono_register_jit_icall (mono_get_lmf_addr, "mono_get_lmf_addr", helper_sig_ptr_void, TRUE);
6324         mono_register_jit_icall (mono_domain_get, "mono_domain_get", helper_sig_domain_get, TRUE);
6325
6326         /* fixme: we cant hanlde vararg methods this way, because the signature is not constant */
6327         //mono_register_jit_icall (ves_array_element_address, "ves_array_element_address", NULL);
6328         //mono_register_jit_icall (mono_array_new_va, "mono_array_new_va", NULL);
6329
6330         mono_register_jit_icall (mono_arch_get_throw_exception (), "mono_arch_throw_exception", helper_sig_void_obj, TRUE);
6331         mono_register_jit_icall (mono_arch_get_throw_exception_by_name (), "mono_arch_throw_exception_by_name",
6332                                  helper_sig_void_ptr, TRUE);
6333
6334         /*
6335          * NOTE, NOTE, NOTE, NOTE:
6336          * when adding emulation for some opcodes, remember to also add a dummy
6337          * rule to the burg files, because we need the arity information to be correct.
6338          */
6339         mono_register_opcode_emulation (OP_LMUL, helper_sig_long_long_long, mono_llmult);
6340         mono_register_opcode_emulation (OP_LMUL_OVF_UN, helper_sig_long_long_long, mono_llmult_ovf_un);
6341         mono_register_opcode_emulation (OP_LMUL_OVF, helper_sig_long_long_long, mono_llmult_ovf);
6342         mono_register_opcode_emulation (OP_LDIV, helper_sig_long_long_long, mono_lldiv);
6343         mono_register_opcode_emulation (OP_LDIV_UN, helper_sig_long_long_long, mono_lldiv_un);
6344         mono_register_opcode_emulation (OP_LREM, helper_sig_long_long_long, mono_llrem);
6345         mono_register_opcode_emulation (OP_LREM_UN, helper_sig_long_long_long, mono_llrem_un);
6346
6347         mono_register_opcode_emulation (OP_LSHL, helper_sig_long_long_int, mono_lshl);
6348         mono_register_opcode_emulation (OP_LSHR, helper_sig_long_long_int, mono_lshr);
6349         mono_register_opcode_emulation (OP_LSHR_UN, helper_sig_long_long_int, mono_lshr_un);
6350
6351         mono_register_opcode_emulation (OP_FCONV_TO_U8, helper_sig_ulong_double, mono_fconv_u8);
6352         mono_register_opcode_emulation (OP_FCONV_TO_U4, helper_sig_uint_double, mono_fconv_u4);
6353         mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, helper_sig_long_double, mono_fconv_ovf_i8);
6354         mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, helper_sig_ulong_double, mono_fconv_ovf_u8);
6355
6356 #if SIZEOF_VOID_P == 4
6357         mono_register_opcode_emulation (OP_FCONV_TO_U, helper_sig_uint_double, mono_fconv_u4);
6358 #else
6359 #warning "fixme: add opcode emulation"
6360 #endif
6361
6362         /* other jit icalls */
6363         mono_register_jit_icall (mono_class_static_field_address , "mono_class_static_field_address",
6364                                  helper_sig_ptr_ptr_ptr, FALSE);
6365         mono_register_jit_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", helper_sig_ptr_ptr_ptr, FALSE);
6366         mono_register_jit_icall (mono_threads_get_static_data, "mono_threads_get_static_data", helper_sig_ptr_int, FALSE);
6367         mono_register_jit_icall (mono_ldstr, "mono_ldstr", helper_sig_ldstr, FALSE);
6368         mono_register_jit_icall (helper_memcpy, "helper_memcpy", helper_sig_memcpy, FALSE);
6369         mono_register_jit_icall (helper_memset, "helper_memset", helper_sig_memset, FALSE);
6370         mono_register_jit_icall (helper_initobj, "helper_initobj", helper_sig_initobj, FALSE);
6371         mono_register_jit_icall (helper_stelem_ref, "helper_stelem_ref", helper_sig_stelem_ref, FALSE);
6372         mono_register_jit_icall (mono_object_new, "mono_object_new", helper_sig_object_new, FALSE);
6373         mono_register_jit_icall (mono_object_new_specific, "mono_object_new_specific", helper_sig_object_new_specific, FALSE);
6374         mono_register_jit_icall (mono_array_new, "mono_array_new", helper_sig_newarr, FALSE);
6375         mono_register_jit_icall (mono_array_new_specific, "mono_array_new_specific", helper_sig_newarr_specific, FALSE);
6376         mono_register_jit_icall (mono_string_to_utf16, "mono_string_to_utf16", helper_sig_ptr_obj, FALSE);
6377         mono_register_jit_icall (mono_string_from_utf16, "mono_string_from_utf16", helper_sig_obj_ptr, FALSE);
6378         mono_register_jit_icall (mono_string_new_wrapper, "mono_string_new_wrapper", helper_sig_obj_ptr, FALSE);
6379         mono_register_jit_icall (mono_string_to_utf8, "mono_string_to_utf8", helper_sig_ptr_obj, FALSE);
6380         mono_register_jit_icall (mono_string_to_bstr, "mono_string_to_bstr", helper_sig_ptr_obj, FALSE);
6381         mono_register_jit_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", helper_sig_ptr_obj, FALSE);
6382         mono_register_jit_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", helper_sig_ptr_obj, FALSE);
6383         mono_register_jit_icall (mono_array_to_savearray, "mono_array_to_savearray", helper_sig_ptr_obj, FALSE);
6384         mono_register_jit_icall (mono_array_to_lparray, "mono_array_to_lparray", helper_sig_ptr_obj, FALSE);
6385         mono_register_jit_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", helper_sig_ptr_obj, FALSE);
6386         mono_register_jit_icall (mono_marshal_string_array, "mono_marshal_string_array", helper_sig_ptr_obj, FALSE);
6387         mono_register_jit_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", helper_sig_void_ptr_ptr, FALSE);
6388         mono_register_jit_icall (mono_marshal_free_array, "mono_marshal_free_array", helper_sig_void_ptr_ptr, FALSE);
6389         mono_register_jit_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", helper_sig_void_ptr_ptr_ptr, FALSE);
6390         mono_register_jit_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", helper_sig_void_ptr_ptr_ptr, FALSE);
6391         mono_register_jit_icall (g_free, "g_free", helper_sig_void_ptr, FALSE);
6392         mono_register_jit_icall (mono_ldftn, "mono_ldftn", helper_sig_compile, FALSE);
6393         mono_register_jit_icall (mono_ldvirtfn, "mono_ldvirtfn", helper_sig_compile_virt, FALSE);
6394
6395         mono_runtime_init (domain, mono_thread_start_cb,
6396                            mono_thread_attach_cb);
6397
6398         //mono_thread_attach (domain);
6399         return domain;
6400 }
6401
6402 MonoJitStats mono_jit_stats = {0};
6403
6404 static void
6405 print_jit_stats (void)
6406 {
6407         if (mono_jit_stats.enabled) {
6408                 g_print ("Mono Jit statistics\n");
6409                 g_print ("Compiled methods:       %ld\n", mono_jit_stats.methods_compiled);
6410                 g_print ("Methods from AOT:       %ld\n", mono_jit_stats.methods_aot);
6411                 g_print ("Methods cache lookup:   %ld\n", mono_jit_stats.methods_lookups);
6412                 g_print ("Method trampolines:     %ld\n", mono_jit_stats.method_trampolines);
6413                 g_print ("Basic blocks:           %ld\n", mono_jit_stats.basic_blocks);
6414                 g_print ("Max basic blocks:       %ld\n", mono_jit_stats.max_basic_blocks);
6415                 g_print ("Allocated vars:         %ld\n", mono_jit_stats.allocate_var);
6416                 g_print ("Analyze stack repeat:   %ld\n", mono_jit_stats.analyze_stack_repeat);
6417                 g_print ("Compiled CIL code size: %ld\n", mono_jit_stats.cil_code_size);
6418                 g_print ("Native code size:       %ld\n", mono_jit_stats.native_code_size);
6419                 g_print ("Max code size ratio:    %.2f (%s::%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
6420                                 mono_jit_stats.max_ratio_method->klass->name, mono_jit_stats.max_ratio_method->name);
6421                 g_print ("Biggest method:         %ld (%s::%s)\n", mono_jit_stats.biggest_method_size,
6422                                 mono_jit_stats.biggest_method->klass->name, mono_jit_stats.biggest_method->name);
6423                 g_print ("Code reallocs:          %ld\n", mono_jit_stats.code_reallocs);
6424                 g_print ("Allocated code size:    %ld\n", mono_jit_stats.allocated_code_size);
6425                 g_print ("Inlineable methods:     %ld\n", mono_jit_stats.inlineable_methods);
6426                 g_print ("Inlined methods:        %ld\n", mono_jit_stats.inlined_methods);
6427
6428                 g_print ("\nCreated object count:   %ld\n", mono_stats.new_object_count);
6429                 g_print ("Initialized classes:    %ld\n", mono_stats.initialized_class_count);
6430                 g_print ("Used classes:           %ld\n", mono_stats.used_class_count);
6431                 g_print ("Static data size:       %ld\n", mono_stats.class_static_data_size);
6432                 g_print ("VTable data size:       %ld\n", mono_stats.class_vtable_size);
6433         }
6434 }
6435
6436 void
6437 mini_cleanup (MonoDomain *domain)
6438 {
6439         /*
6440          * mono_runtime_cleanup() and mono_domain_finalize () need to
6441          * be called early since they need the execution engine still
6442          * fully working (mono_domain_finalize may invoke managed finalizers
6443          * and mono_runtime_cleanup will wait for other threads to finish).
6444          */
6445         mono_domain_finalize (domain);
6446
6447         mono_runtime_cleanup (domain);
6448
6449         mono_profiler_shutdown ();
6450
6451         mono_debug_cleanup ();
6452 #ifdef PLATFORM_WIN32
6453         win32_seh_cleanup();
6454 #endif
6455
6456         mono_domain_unload (domain, TRUE);
6457
6458         print_jit_stats ();
6459         DeleteCriticalSection (metadata_section);
6460 }
6461
6462 void
6463 mono_set_defaults (int verbose_level, guint32 opts)
6464 {
6465         mini_verbose = verbose_level;
6466         default_opt = opts;
6467 }
6468