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  * This function is called to handle items that are left on the evaluation stack
1437  * at basic block boundaries. What happens is that we save the values to local variables
1438  * and we reload them later when first entering the target basic block (with the
1439  * handle_loaded_temps () function).
1440  * A single joint point will use the same variables (stored in the array bb->out_stack or
1441  * bb->in_stack, if the basic block is before or after the joint point).
1442  */
1443 static int
1444 handle_stack_args (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **sp, int count) {
1445         int i;
1446         MonoBasicBlock *outb;
1447         MonoInst *inst, **locals;
1448
1449         if (!count)
1450                 return 0;
1451         if (cfg->verbose_level > 3)
1452                 g_print ("%d item(s) on exit from B%d\n", count, bb->block_num);
1453         if (!bb->out_scount) {
1454                 int found = 0;
1455                 bb->out_scount = count;
1456                 //g_print ("bblock %d has out:", bb->block_num);
1457                 for (i = 0; i < bb->out_count; ++i) {
1458                         outb = bb->out_bb [i];
1459                         //g_print (" %d", outb->block_num);
1460                         if (outb->in_stack) {
1461                                 found = 1;
1462                                 bb->out_stack = outb->in_stack;
1463                                 break;
1464                         }
1465                 }
1466                 //g_print ("\n");
1467                 if (!found) {
1468                         bb->out_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * count);
1469                         for (i = 0; i < count; ++i) {
1470                                 /*
1471                                  * dietmar suggests that we can reuse temps already allocated
1472                                  * for this purpouse, if they occupy the same stack slot and if
1473                                  * they are of the same type.
1474                                  */
1475                                 bb->out_stack [i] = mono_compile_create_var (cfg, type_from_stack_type (sp [i]), OP_LOCAL);
1476                         }
1477                 }
1478         }
1479         locals = bb->out_stack;
1480         for (i = 0; i < count; ++i) {
1481                 /* add store ops at the end of the bb, before the branch */
1482                 NEW_TEMPSTORE (cfg, inst, locals [i]->inst_c0, sp [i]);
1483                 if (inst->opcode == CEE_STOBJ) {
1484                         NEW_TEMPLOADA (cfg, inst, locals [i]->inst_c0);
1485                         handle_stobj (cfg, bb, inst, sp [i], sp [i]->cil_code, inst->klass, TRUE, FALSE);
1486                 } else {
1487                         inst->cil_code = sp [i]->cil_code;
1488                         mono_add_ins_to_end (bb, inst);
1489                 }
1490                 if (cfg->verbose_level > 3)
1491                         g_print ("storing %d to temp %d\n", i, locals [i]->inst_c0);
1492         }
1493
1494         for (i = 0; i < bb->out_count; ++i) {
1495                 outb = bb->out_bb [i];
1496                 if (outb->in_scount)
1497                         continue; /* check they are the same locals */
1498                 outb->in_scount = count;
1499                 outb->in_stack = locals;
1500         }
1501         return 0;
1502 }
1503
1504 static int
1505 ret_type_to_call_opcode (MonoType *type, int calli, int virt)
1506 {
1507         int t = type->type;
1508
1509         if (type->byref)
1510                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1511
1512 handle_enum:
1513         switch (t) {
1514         case MONO_TYPE_VOID:
1515                 return calli? OP_VOIDCALL_REG: virt? OP_VOIDCALLVIRT: OP_VOIDCALL;
1516         case MONO_TYPE_I1:
1517         case MONO_TYPE_U1:
1518         case MONO_TYPE_BOOLEAN:
1519         case MONO_TYPE_I2:
1520         case MONO_TYPE_U2:
1521         case MONO_TYPE_CHAR:
1522         case MONO_TYPE_I4:
1523         case MONO_TYPE_U4:
1524                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1525         case MONO_TYPE_I:
1526         case MONO_TYPE_U:
1527         case MONO_TYPE_PTR:
1528                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1529         case MONO_TYPE_CLASS:
1530         case MONO_TYPE_STRING:
1531         case MONO_TYPE_OBJECT:
1532         case MONO_TYPE_SZARRAY:
1533         case MONO_TYPE_ARRAY:
1534                 return calli? OP_CALL_REG: virt? CEE_CALLVIRT: CEE_CALL;
1535         case MONO_TYPE_I8:
1536         case MONO_TYPE_U8:
1537                 return calli? OP_LCALL_REG: virt? OP_LCALLVIRT: OP_LCALL;
1538         case MONO_TYPE_R4:
1539         case MONO_TYPE_R8:
1540                 return calli? OP_FCALL_REG: virt? OP_FCALLVIRT: OP_FCALL;
1541         case MONO_TYPE_VALUETYPE:
1542                 if (type->data.klass->enumtype) {
1543                         t = type->data.klass->enum_basetype->type;
1544                         goto handle_enum;
1545                 } else
1546                         return calli? OP_VCALL_REG: virt? OP_VCALLVIRT: OP_VCALL;
1547         default:
1548                 g_error ("unknown type %02x in ret_type_to_call_opcode", type->type);
1549         }
1550         return -1;
1551 }
1552
1553 void
1554 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1555 {
1556         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1557
1558         ji->ip.label = label;
1559         ji->type = MONO_PATCH_INFO_SWITCH;
1560         ji->data.table = bbs;
1561         ji->next = cfg->patch_info;
1562         ji->table_size = num_blocks;
1563         cfg->patch_info = ji;
1564 }
1565
1566 /*
1567  * When we add a tree of instructions, we need to ensure the instructions currently
1568  * on the stack are executed before (like, if we load a value from a local).
1569  * We ensure this by saving the currently loaded values to temps and rewriting the
1570  * instructions to load the values.
1571  * This is not done for opcodes that terminate a basic block (because it's handled already
1572  * by handle_stack_args ()) and for opcodes that can't change values, like POP.
1573  */
1574 static void
1575 handle_loaded_temps (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst **stack, MonoInst **sp)
1576 {
1577         MonoInst *load, *store, *temp, *ins;
1578
1579         while (stack < sp) {
1580                 ins = *stack;
1581                 /* handle also other constants */
1582                 if (ins->opcode != OP_ICONST) {
1583                         temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1584                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
1585                         store->cil_code = ins->cil_code;
1586                         if (store->opcode == CEE_STOBJ) {
1587                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
1588                                 handle_stobj (cfg, bblock, store, ins, ins->cil_code, temp->klass, FALSE, FALSE);
1589                         } else
1590                                 MONO_ADD_INS (bblock, store);
1591                         NEW_TEMPLOAD (cfg, load, temp->inst_c0);
1592                         load->cil_code = ins->cil_code;
1593                         *stack = load;
1594                 }
1595                 stack++;
1596         }
1597 }
1598
1599 inline static int
1600 mono_spill_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoCallInst *call, MonoMethodSignature *sig, gboolean ret_object,
1601                  const guint8 *ip, gboolean to_end)
1602 {
1603         MonoInst *temp, *store, *ins = (MonoInst*)call;
1604         MonoType *ret = sig->ret;
1605
1606         if (!MONO_TYPE_IS_VOID (ret) || ret_object) {
1607                 if (ret_object) {
1608                         call->inst.type = STACK_OBJ;
1609                         call->inst.opcode = CEE_CALL;
1610                         temp = mono_compile_create_var (cfg, &mono_defaults.string_class->byval_arg, OP_LOCAL);
1611                 } else {
1612                         type_to_eval_stack_type (ret, ins);
1613                         temp = mono_compile_create_var (cfg, ret, OP_LOCAL);
1614                 }
1615
1616                 if (MONO_TYPE_ISSTRUCT (ret)) {
1617                         MonoInst *loada;
1618
1619                         /* we use this to allocate native sized structs */
1620                         temp->unused = sig->pinvoke;
1621
1622                         NEW_TEMPLOADA (cfg, loada, temp->inst_c0);
1623                         if (call->inst.opcode == OP_VCALL)
1624                                 ins->inst_left = loada;
1625                         else
1626                                 ins->inst_right = loada; /* a virtual or indirect call */
1627
1628                         if (to_end)
1629                                 mono_add_ins_to_end (bblock, ins);
1630                         else
1631                                 MONO_ADD_INS (bblock, ins);
1632                 } else {
1633                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
1634                         store->cil_code = ip;
1635                         if (to_end)
1636                                 mono_add_ins_to_end (bblock, store);
1637                         else
1638                                 MONO_ADD_INS (bblock, store);
1639                 }
1640                 return temp->inst_c0;
1641         } else {
1642                 if (to_end)
1643                         mono_add_ins_to_end (bblock, ins);
1644                 else
1645                         MONO_ADD_INS (bblock, ins);
1646                 return -1;
1647         }
1648 }
1649
1650 inline static MonoCallInst *
1651 mono_emit_call_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
1652                      MonoInst **args, int calli, int virtual, const guint8 *ip, gboolean to_end)
1653 {
1654         MonoCallInst *call;
1655         int i;
1656
1657         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (sig->ret, calli, virtual));
1658
1659         call->inst.cil_code = ip;
1660         call->args = args;
1661         call->signature = sig;
1662         call = mono_arch_call_opcode (cfg, bblock, call, virtual);
1663
1664         for (i = 0; i < (sig->param_count + sig->hasthis); ++i) {
1665                 if (call->args [i]) {
1666                         if (!call->args [i]->cil_code)
1667                                 call->args [i]->cil_code = ip;
1668                         if (to_end)
1669                                 mono_add_ins_to_end (bblock, call->args [i]);
1670                         else
1671                                 MONO_ADD_INS (bblock, call->args [i]);
1672                 }
1673         }
1674         return call;
1675 }
1676
1677 inline static int
1678 mono_emit_calli (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig,
1679                  MonoInst **args, MonoInst *addr, const guint8 *ip)
1680 {
1681         MonoCallInst *call = mono_emit_call_args (cfg, bblock, sig, args, TRUE, FALSE, ip, FALSE);
1682
1683         call->inst.inst_i0 = addr;
1684
1685         return mono_spill_call (cfg, bblock, call, sig, FALSE, ip, FALSE);
1686 }
1687
1688 static MonoCallInst*
1689 mono_emit_method_call (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method, MonoMethodSignature *sig,
1690                        MonoInst **args, const guint8 *ip, MonoInst *this)
1691 {
1692         gboolean virtual = this != NULL;
1693         MonoCallInst *call;
1694
1695         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, virtual, ip, FALSE);
1696
1697         if (this && sig->hasthis &&
1698             (method->klass->marshalbyref || method->klass == mono_defaults.object_class) &&
1699             !(method->flags & METHOD_ATTRIBUTE_VIRTUAL) && !MONO_CHECK_THIS (this)) {
1700                 call->method = mono_marshal_get_remoting_invoke_with_check (method);
1701         } else {
1702                 call->method = method;
1703         }
1704         call->inst.flags |= MONO_INST_HAS_METHOD;
1705         call->inst.inst_left = this;
1706
1707         return call;
1708 }
1709
1710 inline static int
1711 mono_emit_method_call_spilled (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethod *method,
1712                        MonoInst **args, const guint8 *ip, MonoInst *this)
1713 {
1714         MonoCallInst *call = mono_emit_method_call (cfg, bblock, method, method->signature, args, ip, this);
1715
1716         return mono_spill_call (cfg, bblock, call, method->signature, method->string_ctor, ip, FALSE);
1717 }
1718
1719 inline static int
1720 mono_emit_native_call (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoMethodSignature *sig,
1721                        MonoInst **args, const guint8 *ip, gboolean to_end)
1722 {
1723         MonoCallInst *call;
1724
1725         g_assert (sig);
1726
1727         call = mono_emit_call_args (cfg, bblock, sig, args, FALSE, FALSE, ip, to_end);
1728         call->fptr = func;
1729         return mono_spill_call (cfg, bblock, call, sig, func == mono_array_new_va, ip, to_end);
1730 }
1731
1732 inline static int
1733 mono_emit_jit_icall (MonoCompile *cfg, MonoBasicBlock *bblock, gconstpointer func, MonoInst **args, const guint8 *ip)
1734 {
1735         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (func);
1736
1737         if (!info) {
1738                 g_warning ("unregistered JIT ICall");
1739                 g_assert_not_reached ();
1740         }
1741
1742         return mono_emit_native_call (cfg, bblock, info->wrapper, info->sig, args, ip, FALSE);
1743 }
1744
1745 static void
1746 mono_emulate_opcode (MonoCompile *cfg, MonoInst *tree, MonoInst **iargs, MonoJitICallInfo *info)
1747 {
1748         MonoInst *ins, *temp = NULL, *store, *load;
1749         int i, nargs;
1750         MonoCallInst *call;
1751
1752         /*g_print ("emulating: ");
1753         mono_print_tree (tree);
1754         g_print ("\n");*/
1755         MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (info->sig->ret, FALSE, FALSE));
1756         ins = (MonoInst*)call;
1757
1758         call->inst.cil_code = tree->cil_code;
1759         call->args = iargs;
1760         call->signature = info->sig;
1761
1762         call = mono_arch_call_opcode (cfg, cfg->cbb, call, FALSE);
1763
1764         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
1765                 temp = mono_compile_create_var (cfg, info->sig->ret, OP_LOCAL);
1766                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
1767                 store->cil_code = tree->cil_code;
1768         } else {
1769                 store = ins;
1770         }
1771
1772         nargs = info->sig->param_count + info->sig->hasthis;
1773
1774         for (i = 1; i < nargs; i++) {
1775                 call->args [i - 1]->next = call->args [i];
1776         }
1777
1778         if (nargs)
1779                 call->args [nargs - 1]->next = store;
1780
1781         if (cfg->prev_ins) {
1782                 store->next = cfg->prev_ins->next;
1783                 if (nargs)
1784                         cfg->prev_ins->next =  call->args [0];
1785                 else
1786                         cfg->prev_ins->next = store;
1787         } else {
1788                 store->next = cfg->cbb->code;
1789                 if (nargs)
1790                         cfg->cbb->code = call->args [0];
1791                 else
1792                         cfg->cbb->code = store;
1793         }
1794
1795
1796         call->fptr = info->wrapper;
1797
1798         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
1799                 NEW_TEMPLOAD (cfg, load, temp->inst_c0);
1800                 *tree = *load;
1801         }
1802 }
1803
1804 static MonoMethodSignature *
1805 mono_get_element_address_signature (int arity)
1806 {
1807         static GHashTable *sighash = NULL;
1808         MonoMethodSignature *res;
1809         int i;
1810
1811         if (!sighash)
1812                 sighash = g_hash_table_new (NULL, NULL);
1813
1814
1815         if ((res = g_hash_table_lookup (sighash, (gpointer)arity)))
1816                 return res;
1817
1818         res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1819
1820         res->params [0] = &mono_defaults.array_class->byval_arg;
1821
1822         for (i = 1; i <= arity; i++)
1823                 res->params [i] = &mono_defaults.int_class->byval_arg;
1824
1825         res->ret = &mono_defaults.int_class->byval_arg;
1826
1827         g_hash_table_insert (sighash, (gpointer)arity, res);
1828
1829         return res;
1830 }
1831
1832 static void
1833 handle_stobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, MonoInst *src, const unsigned char *ip, MonoClass *klass, gboolean to_end, gboolean native) {
1834         MonoInst *iargs [3];
1835         int n;
1836
1837         g_assert (klass);
1838         /*
1839          * This check breaks with spilled vars... need to handle it during verification anyway.
1840          * g_assert (klass && klass == src->klass && klass == dest->klass);
1841          */
1842
1843         if (native)
1844                 n = mono_class_native_size (klass, NULL);
1845         else
1846                 n = mono_class_value_size (klass, NULL);
1847
1848         iargs [0] = dest;
1849         iargs [1] = src;
1850         NEW_ICONST (cfg, iargs [2], n);
1851
1852         mono_emit_native_call (cfg, bblock, helper_memcpy, helper_sig_memcpy, iargs, ip, to_end);
1853 }
1854
1855 static void
1856 handle_initobj (MonoCompile *cfg, MonoBasicBlock *bblock, MonoInst *dest, const guchar *ip, MonoClass *klass, MonoInst **stack_start, MonoInst **sp)
1857 {
1858         MonoInst *iargs [2];
1859         MonoInst *ins, *zero_int32;
1860         int n;
1861
1862         NEW_ICONST (cfg, zero_int32, 0);
1863
1864         mono_class_init (klass);
1865         n = mono_class_value_size (klass, NULL);
1866         MONO_INST_NEW (cfg, ins, 0);
1867         ins->cil_code = ip;
1868         ins->inst_left = dest;
1869         ins->inst_right = zero_int32;
1870         switch (n) {
1871         case 1:
1872                 ins->opcode = CEE_STIND_I1;
1873                 MONO_ADD_INS (bblock, ins);
1874                 break;
1875         case 2:
1876                 ins->opcode = CEE_STIND_I2;
1877                 MONO_ADD_INS (bblock, ins);
1878                 break;
1879         case 4:
1880                 ins->opcode = CEE_STIND_I4;
1881                 MONO_ADD_INS (bblock, ins);
1882                 break;
1883         default:
1884                 handle_loaded_temps (cfg, bblock, stack_start, sp);
1885                 NEW_ICONST (cfg, ins, n);
1886                 iargs [0] = dest;
1887                 iargs [1] = ins;
1888                 mono_emit_jit_icall (cfg, bblock, helper_initobj, iargs, ip);
1889                 break;
1890         }
1891 }
1892
1893 #define CODE_IS_STLOC(ip) (((ip) [0] >= CEE_STLOC_0 && (ip) [0] <= CEE_STLOC_3) || ((ip) [0] == CEE_STLOC_S))
1894
1895 static gboolean
1896 mono_method_check_inlining (MonoMethod *method)
1897 {
1898         MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
1899         MonoMethodSignature *signature = method->signature;
1900         int i;
1901
1902         /* fixme: we should inline wrappers */
1903         if (method->wrapper_type != MONO_WRAPPER_NONE)
1904                 return FALSE;
1905
1906         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
1907             (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
1908             (method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING) ||
1909             (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) ||
1910             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
1911             (method->klass->marshalbyref) ||
1912             !header || header->num_clauses ||
1913             /* fixme: why cant we inline valuetype returns? */
1914             MONO_TYPE_ISSTRUCT (signature->ret))
1915                 return FALSE;
1916
1917         /* its not worth to inline methods with valuetype arguments?? */
1918         for (i = 0; i < signature->param_count; i++) {
1919                 if (MONO_TYPE_ISSTRUCT (signature->params [i])) {
1920                         return FALSE;
1921                 }
1922         }
1923
1924         //if (!MONO_TYPE_IS_VOID (signature->ret)) return FALSE;
1925
1926         /* also consider num_locals? */
1927         if (header->code_size < 20)
1928                 return TRUE;
1929
1930         return FALSE;
1931 }
1932
1933 static MonoInst*
1934 mini_get_opcode_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
1935 {
1936         int pc, op;
1937         MonoInst *ins;
1938
1939         if (cmethod->klass == mono_defaults.string_class) {
1940                 if (cmethod->name [0] != 'g' || strcmp (cmethod->name, "get_Chars"))
1941                         return NULL;
1942                 op = OP_GETCHR;
1943         } else if (cmethod->klass == mono_defaults.math_class) {
1944                 if (strcmp (cmethod->name, "Sin") == 0)
1945                         op = OP_SIN;
1946                 else if (strcmp (cmethod->name, "Cos") == 0)
1947                         op = OP_COS;
1948                 else if (strcmp (cmethod->name, "Tan") == 0)
1949                         op = OP_TAN;
1950                 else if (strcmp (cmethod->name, "Atan") == 0)
1951                         op = OP_ATAN;
1952                 else if (strcmp (cmethod->name, "Sqrt") == 0)
1953                         op = OP_SQRT;
1954                 else if (strcmp (cmethod->name, "Abs") == 0 && fsig->params [0]->type == MONO_TYPE_R8)
1955                         op = OP_ABS;
1956                 else
1957                         return NULL;
1958         } else {
1959                 return NULL;
1960         }
1961         pc = fsig->param_count + fsig->hasthis;
1962         MONO_INST_NEW (cfg, ins, op);
1963
1964         if (pc > 0) {
1965                 ins->inst_i0 = args [0];
1966                 if (pc > 1)
1967                         ins->inst_i1 = args [1];
1968         }
1969
1970         return ins;
1971 }
1972
1973 static void
1974 mono_save_args (MonoCompile *cfg, MonoBasicBlock *bblock, MonoMethodSignature *sig, MonoInst **sp, MonoInst **args)
1975 {
1976         MonoInst *store, *temp;
1977         int i;
1978
1979         g_assert (!MONO_TYPE_ISSTRUCT (sig->ret));
1980
1981         if (!sig->hasthis && sig->param_count == 0)
1982                 return;
1983
1984         if (sig->hasthis) {
1985                 if (sp [0]->opcode == OP_ICONST) {
1986                         *args++ = sp [0];
1987                 } else {
1988                         temp = mono_compile_create_var (cfg, type_from_stack_type (*sp), OP_LOCAL);
1989                         *args++ = temp;
1990                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
1991                         store->cil_code = sp [0]->cil_code;
1992                         MONO_ADD_INS (bblock, store);
1993                 }
1994                 sp++;
1995         }
1996
1997         for (i = 0; i < sig->param_count; ++i) {
1998                 if (sp [0]->opcode == OP_ICONST) {
1999                         *args++ = sp [0];
2000                 } else {
2001                         temp = mono_compile_create_var (cfg, sig->params [i], OP_LOCAL);
2002                         *args++ = temp;
2003                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, *sp);
2004                         store->cil_code = sp [0]->cil_code;
2005                         if (store->opcode == CEE_STOBJ) {
2006                                 NEW_TEMPLOADA (cfg, store, temp->inst_c0);
2007                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, temp->klass, FALSE, FALSE);
2008                         } else {
2009                                 MONO_ADD_INS (bblock, store);
2010                         }
2011                 }
2012                 sp++;
2013         }
2014 }
2015
2016 static int
2017 inline_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoBasicBlock *bblock, MonoInst **sp,
2018                 guchar *ip, guint real_offset, GList *dont_inline, MonoBasicBlock **last_b)
2019 {
2020         MonoInst *ins, *rvar = NULL;
2021         MonoMethodHeader *cheader;
2022         MonoBasicBlock *ebblock, *sbblock;
2023         int i, costs, new_locals_offset;
2024
2025         if (cfg->verbose_level > 2)
2026                 g_print ("INLINE START %p %s\n", cmethod,  mono_method_full_name (cmethod, TRUE));
2027
2028         cheader = ((MonoMethodNormal *)cmethod)->header;
2029
2030         if (!cmethod->inline_info) {
2031                 mono_jit_stats.inlineable_methods++;
2032                 cmethod->inline_info = 1;
2033         }
2034         /* allocate space to store the return value */
2035         if (!MONO_TYPE_IS_VOID (fsig->ret))
2036                 rvar =  mono_compile_create_var (cfg, fsig->ret, OP_LOCAL);
2037
2038         /* allocate local variables */
2039         new_locals_offset = cfg->num_varinfo;
2040         for (i = 0; i < cheader->num_locals; ++i)
2041                 mono_compile_create_var (cfg, cheader->locals [i], OP_LOCAL);
2042
2043         /* allocate starte and end blocks */
2044         sbblock = NEW_BBLOCK (cfg);
2045         sbblock->block_num = cfg->num_bblocks++;
2046         sbblock->real_offset = real_offset;
2047
2048         ebblock = NEW_BBLOCK (cfg);
2049         ebblock->block_num = cfg->num_bblocks++;
2050         ebblock->real_offset = real_offset;
2051
2052         costs = mono_method_to_ir (cfg, cmethod, sbblock, ebblock, new_locals_offset, rvar, dont_inline, sp, real_offset, *ip == CEE_CALLVIRT);
2053
2054         if (costs >= 0 && costs < 60) {
2055                 if (cfg->verbose_level > 2)
2056                         g_print ("INLINE END %s\n", mono_method_full_name (cmethod, TRUE));
2057
2058                 mono_jit_stats.inlined_methods++;
2059
2060                 /* always add some code to avoid block split failures */
2061                 MONO_INST_NEW (cfg, ins, CEE_NOP);
2062                 MONO_ADD_INS (bblock, ins);
2063                 ins->cil_code = ip;
2064
2065                 bblock->next_bb = sbblock;
2066                 link_bblock (cfg, bblock, sbblock);
2067
2068                 if (rvar) {
2069                         NEW_TEMPLOAD (cfg, ins, rvar->inst_c0);
2070                         *sp++ = ins;
2071                 }
2072                 *last_b = ebblock;
2073                 return costs + 1;
2074         } else {
2075                 if (cfg->verbose_level > 2)
2076                         g_print ("INLINE ABORTED %s\n", mono_method_full_name (cmethod, TRUE));
2077         }
2078         return 0;
2079 }
2080
2081 /*
2082  * Some of these comments may well be out-of-date.
2083  * Design decisions: we do a single pass over the IL code (and we do bblock
2084  * splitting/merging in the few cases when it's required: a back jump to an IL
2085  * address that was not already seen as bblock starting point).
2086  * Code is validated as we go (full verification is still better left to metadata/verify.c).
2087  * Complex operations are decomposed in simpler ones right away. We need to let the
2088  * arch-specific code peek and poke inside this process somehow (except when the
2089  * optimizations can take advantage of the full semantic info of coarse opcodes).
2090  * All the opcodes of the form opcode.s are 'normalized' to opcode.
2091  * MonoInst->opcode initially is the IL opcode or some simplification of that
2092  * (OP_LOAD, OP_STORE). The arch-specific code may rearrange it to an arch-specific
2093  * opcode with value bigger than OP_LAST.
2094  * At this point the IR can be handed over to an interpreter, a dumb code generator
2095  * or to the optimizing code generator that will translate it to SSA form.
2096  *
2097  * Profiling directed optimizations.
2098  * We may compile by default with few or no optimizations and instrument the code
2099  * or the user may indicate what methods to optimize the most either in a config file
2100  * or through repeated runs where the compiler applies offline the optimizations to
2101  * each method and then decides if it was worth it.
2102  *
2103  * TODO:
2104  * * consider using an array instead of an hash table (bb_hash)
2105  */
2106
2107 #define CHECK_TYPE(ins) if (!(ins)->type) goto unverified
2108 #define CHECK_STACK(num) if ((sp - stack_start) < (num)) goto unverified
2109 #define CHECK_STACK_OVF(num) if (((sp - stack_start) + (num)) > header->max_stack) goto unverified
2110
2111 /* offset from br.s -> br like opcodes */
2112 #define BIG_BRANCH_OFFSET 13
2113
2114 /*
2115  * mono_method_to_ir: translates IL into basic blocks containing trees
2116  */
2117 static int
2118 mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
2119                    int locals_offset, MonoInst *return_var, GList *dont_inline, MonoInst **inline_args,
2120                    guint inline_offset, gboolean is_virtual_call)
2121 {
2122         MonoInst *zero_int32, *zero_int64, *zero_ptr, *zero_obj, *zero_r8;
2123         MonoInst *ins, **sp, **stack_start;
2124         MonoBasicBlock *bblock, *tblock = NULL, *init_localsbb = NULL;
2125         GHashTable *bbhash;
2126         MonoMethod *cmethod;
2127         MonoInst **arg_array;
2128         MonoMethodHeader *header;
2129         MonoImage *image;
2130         guint32 token, ins_flag;
2131         MonoClass *klass;
2132         unsigned char *ip, *end, *target;
2133         static double r8_0 = 0.0;
2134         MonoMethodSignature *sig;
2135         MonoType **param_types;
2136         GList *bb_recheck = NULL, *tmp;
2137         int i, n, start_new_bblock, align;
2138         int num_calls = 0, inline_costs = 0;
2139         int *filter_lengths = NULL;
2140         int breakpoint_id = 0;
2141         guint real_offset;
2142
2143         image = method->klass->image;
2144         header = ((MonoMethodNormal *)method)->header;
2145         sig = method->signature;
2146         ip = (unsigned char*)header->code;
2147         end = ip + header->code_size;
2148         mono_jit_stats.cil_code_size += header->code_size;
2149
2150         if (cfg->method == method) {
2151                 real_offset = 0;
2152                 bbhash = cfg->bb_hash;
2153         } else {
2154                 real_offset = inline_offset;
2155                 bbhash = g_hash_table_new (g_direct_hash, NULL);
2156         }
2157
2158         dont_inline = g_list_prepend (dont_inline, method);
2159         if (cfg->method == method) {
2160
2161                 /* ENTRY BLOCK */
2162                 cfg->bb_entry = start_bblock = NEW_BBLOCK (cfg);
2163                 start_bblock->cil_code = NULL;
2164                 start_bblock->cil_length = 0;
2165                 start_bblock->block_num = cfg->num_bblocks++;
2166
2167                 /* EXIT BLOCK */
2168                 cfg->bb_exit = end_bblock = NEW_BBLOCK (cfg);
2169                 end_bblock->cil_code = NULL;
2170                 end_bblock->cil_length = 0;
2171                 end_bblock->block_num = cfg->num_bblocks++;
2172                 g_assert (cfg->num_bblocks == 2);
2173
2174                 arg_array = alloca (sizeof (MonoInst *) * (sig->hasthis + sig->param_count));
2175                 for (i = sig->hasthis + sig->param_count - 1; i >= 0; i--)
2176                         arg_array [i] = cfg->varinfo [i];
2177
2178                 if (mono_compile_aot)
2179                         cfg->opt |= MONO_OPT_SHARED;
2180
2181                 if (header->num_clauses) {
2182                         int size = sizeof (int) * header->num_clauses;
2183                         filter_lengths = alloca (size);
2184                         memset (filter_lengths, 0, size);
2185                 }
2186                 /* handle exception clauses */
2187                 for (i = 0; i < header->num_clauses; ++i) {
2188                         //unsigned char *p = ip;
2189                         MonoExceptionClause *clause = &header->clauses [i];
2190                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->try_offset);
2191                         tblock->real_offset = clause->try_offset;
2192                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->handler_offset);
2193                         tblock->real_offset = clause->handler_offset;
2194                         /*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);
2195                           while (p < end) {
2196                           g_print ("%s", mono_disasm_code_one (NULL, method, p, &p));
2197                           }*/
2198                         /* catch and filter blocks get the exception object on the stack */
2199                         if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE ||
2200                             clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2201                                 /* mostly like handle_stack_args (), but just sets the input args */
2202                                 /* g_print ("handling clause at IL_%04x\n", clause->handler_offset); */
2203                                 if (!cfg->exvar) {
2204                                         cfg->exvar = mono_compile_create_var (cfg, &mono_defaults.object_class->byval_arg, OP_LOCAL);
2205                                         /* prevent it from being register allocated */
2206                                         cfg->exvar->flags |= MONO_INST_INDIRECT;
2207                                 }
2208                                 tblock->in_scount = 1;
2209                                 tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
2210                                 tblock->in_stack [0] = cfg->exvar;
2211                                 if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2212                                         GET_BBLOCK (cfg, bbhash, tblock, ip + clause->token_or_filter);
2213                                         tblock->real_offset = clause->token_or_filter;
2214                                         tblock->in_scount = 1;
2215                                         tblock->in_stack = mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
2216                                         tblock->in_stack [0] = cfg->exvar;
2217                                 }
2218                         }
2219                 }
2220
2221         } else {
2222                 arg_array = alloca (sizeof (MonoInst *) * (sig->hasthis + sig->param_count));
2223                 mono_save_args (cfg, start_bblock, sig, inline_args, arg_array);
2224         }
2225
2226         /* FIRST CODE BLOCK */
2227         bblock = NEW_BBLOCK (cfg);
2228         bblock->cil_code = ip;
2229
2230         ADD_BBLOCK (cfg, bbhash, bblock);
2231
2232         if (cfg->method == method) {
2233                 breakpoint_id = mono_debugger_method_has_breakpoint (method);
2234                 if (breakpoint_id && (mono_debug_format != MONO_DEBUG_FORMAT_DEBUGGER)) {
2235                         MONO_INST_NEW (cfg, ins, CEE_BREAK);
2236                         MONO_ADD_INS (bblock, ins);
2237                 }
2238         }
2239
2240         if ((header->init_locals || (cfg->method == method && (cfg->opt & MONO_OPT_SHARED)))) {
2241                 /* we use a separate basic block for the initialization code */
2242                 cfg->bb_init = init_localsbb = NEW_BBLOCK (cfg);
2243                 init_localsbb->real_offset = real_offset;
2244                 start_bblock->next_bb = init_localsbb;
2245                 init_localsbb->next_bb = bblock;
2246                 link_bblock (cfg, start_bblock, init_localsbb);
2247                 link_bblock (cfg, init_localsbb, bblock);
2248                 init_localsbb->block_num = cfg->num_bblocks++;
2249         } else {
2250                 start_bblock->next_bb = bblock;
2251                 link_bblock (cfg, start_bblock, bblock);
2252         }
2253
2254         mono_debug_init_method (cfg, bblock, breakpoint_id);
2255
2256         param_types = mono_mempool_alloc (cfg->mempool, sizeof (MonoType*) * (sig->hasthis + sig->param_count));
2257         if (sig->hasthis)
2258                 param_types [0] = method->klass->valuetype?&method->klass->this_arg:&method->klass->byval_arg;
2259         for (n = 0; n < sig->param_count; ++n)
2260                 param_types [n + sig->hasthis] = sig->params [n];
2261
2262         /* do this somewhere outside - not here */
2263         NEW_ICONST (cfg, zero_int32, 0);
2264         NEW_ICONST (cfg, zero_int64, 0);
2265         zero_int64->type = STACK_I8;
2266         NEW_PCONST (cfg, zero_ptr, 0);
2267         NEW_PCONST (cfg, zero_obj, 0);
2268         zero_obj->type = STACK_OBJ;
2269
2270         MONO_INST_NEW (cfg, zero_r8, OP_R8CONST);
2271         zero_r8->type = STACK_R8;
2272         zero_r8->inst_p0 = &r8_0;
2273
2274         /* add a check for this != NULL to inlined methods */
2275         if (is_virtual_call) {
2276                 MONO_INST_NEW (cfg, ins, OP_CHECK_THIS);
2277                 NEW_ARGLOAD (cfg, ins->inst_left, 0);
2278                 ins->cil_code = ip;
2279                 MONO_ADD_INS (bblock, ins);
2280         }
2281
2282         /* we use a spare stack slot in SWITCH and NEWOBJ and others */
2283         stack_start = sp = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * (header->max_stack + 1));
2284
2285         ins_flag = 0;
2286         start_new_bblock = 0;
2287         while (ip < end) {
2288
2289                 if (cfg->method == method)
2290                         real_offset = ip - header->code;
2291                 else
2292                         real_offset = inline_offset;
2293
2294                 if (start_new_bblock) {
2295                         bblock->cil_length = ip - bblock->cil_code;
2296                         if (start_new_bblock == 2) {
2297                                 g_assert (ip == tblock->cil_code);
2298                         } else {
2299                                 GET_BBLOCK (cfg, bbhash, tblock, ip);
2300                         }
2301                         bblock->next_bb = tblock;
2302                         bblock = tblock;
2303                         start_new_bblock = 0;
2304                         for (i = 0; i < bblock->in_scount; ++i) {
2305                                 NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
2306                                 *sp++ = ins;
2307                         }
2308                 } else {
2309                         if ((tblock = g_hash_table_lookup (bbhash, ip)) && (tblock != bblock)) {
2310                                 link_bblock (cfg, bblock, tblock);
2311                                 if (sp != stack_start) {
2312                                         handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2313                                         sp = stack_start;
2314                                 }
2315                                 bblock->next_bb = tblock;
2316                                 bblock = tblock;
2317                                 for (i = 0; i < bblock->in_scount; ++i) {
2318                                         NEW_TEMPLOAD (cfg, ins, bblock->in_stack [i]->inst_c0);
2319                                         *sp++ = ins;
2320                                 }
2321                         }
2322                 }
2323
2324                 if (cfg->verbose_level > 3)
2325                         g_print ("converting (in B%d: stack: %d) %s", bblock->block_num, sp-stack_start, mono_disasm_code_one (NULL, method, ip, NULL));
2326
2327                 switch (*ip) {
2328                 case CEE_NOP:
2329                         ++ip;
2330                         break;
2331                 case CEE_BREAK:
2332                         MONO_INST_NEW (cfg, ins, CEE_BREAK);
2333                         ins->cil_code = ip++;
2334                         MONO_ADD_INS (bblock, ins);
2335                         break;
2336                 case CEE_LDARG_0:
2337                 case CEE_LDARG_1:
2338                 case CEE_LDARG_2:
2339                 case CEE_LDARG_3:
2340                         CHECK_STACK_OVF (1);
2341                         n = (*ip)-CEE_LDARG_0;
2342                         NEW_ARGLOAD (cfg, ins, n);
2343                         ins->cil_code = ip++;
2344                         *sp++ = ins;
2345                         break;
2346                 case CEE_LDLOC_0:
2347                 case CEE_LDLOC_1:
2348                 case CEE_LDLOC_2:
2349                 case CEE_LDLOC_3:
2350                         CHECK_STACK_OVF (1);
2351                         n = (*ip)-CEE_LDLOC_0;
2352                         NEW_LOCLOAD (cfg, ins, n);
2353                         ins->cil_code = ip++;
2354                         *sp++ = ins;
2355                         break;
2356                 case CEE_STLOC_0:
2357                 case CEE_STLOC_1:
2358                 case CEE_STLOC_2:
2359                 case CEE_STLOC_3:
2360                         CHECK_STACK (1);
2361                         n = (*ip)-CEE_STLOC_0;
2362                         --sp;
2363                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2364                         NEW_LOCSTORE (cfg, ins, n, *sp);
2365                         ins->cil_code = ip;
2366                         if (ins->opcode == CEE_STOBJ) {
2367                                 NEW_LOCLOADA (cfg, ins, n);
2368                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2369                         } else
2370                                 MONO_ADD_INS (bblock, ins);
2371                         ++ip;
2372                         inline_costs += 1;
2373                         break;
2374                 case CEE_LDARG_S:
2375                         CHECK_STACK_OVF (1);
2376                         NEW_ARGLOAD (cfg, ins, ip [1]);
2377                         ins->cil_code = ip;
2378                         *sp++ = ins;
2379                         ip += 2;
2380                         break;
2381                 case CEE_LDARGA_S:
2382                         CHECK_STACK_OVF (1);
2383                         NEW_ARGLOADA (cfg, ins, ip [1]);
2384                         ins->cil_code = ip;
2385                         *sp++ = ins;
2386                         ip += 2;
2387                         break;
2388                 case CEE_STARG_S:
2389                         CHECK_STACK (1);
2390                         --sp;
2391                         NEW_ARGSTORE (cfg, ins, ip [1], *sp);
2392                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2393                         ins->cil_code = ip;
2394                         if (ins->opcode == CEE_STOBJ) {
2395                                 NEW_ARGLOADA (cfg, ins, ip [1]);
2396                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2397                         } else
2398                                 MONO_ADD_INS (bblock, ins);
2399                         ip += 2;
2400                         break;
2401                 case CEE_LDLOC_S:
2402                         CHECK_STACK_OVF (1);
2403                         NEW_LOCLOAD (cfg, ins, ip [1]);
2404                         ins->cil_code = ip;
2405                         *sp++ = ins;
2406                         ip += 2;
2407                         break;
2408                 case CEE_LDLOCA_S:
2409                         CHECK_STACK_OVF (1);
2410                         NEW_LOCLOADA (cfg, ins, ip [1]);
2411                         ins->cil_code = ip;
2412                         *sp++ = ins;
2413                         ip += 2;
2414                         break;
2415                 case CEE_STLOC_S:
2416                         CHECK_STACK (1);
2417                         --sp;
2418                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2419                         NEW_LOCSTORE (cfg, ins, ip [1], *sp);
2420                         ins->cil_code = ip;
2421                         if (ins->opcode == CEE_STOBJ) {
2422                                 NEW_LOCLOADA (cfg, ins, ip [1]);
2423                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2424                         } else
2425                                 MONO_ADD_INS (bblock, ins);
2426                         ip += 2;
2427                         inline_costs += 1;
2428                         break;
2429                 case CEE_LDNULL:
2430                         CHECK_STACK_OVF (1);
2431                         NEW_PCONST (cfg, ins, NULL);
2432                         ins->cil_code = ip;
2433                         ins->type = STACK_OBJ;
2434                         ++ip;
2435                         *sp++ = ins;
2436                         break;
2437                 case CEE_LDC_I4_M1:
2438                         CHECK_STACK_OVF (1);
2439                         NEW_ICONST (cfg, ins, -1);
2440                         ins->cil_code = ip;
2441                         ++ip;
2442                         *sp++ = ins;
2443                         break;
2444                 case CEE_LDC_I4_0:
2445                 case CEE_LDC_I4_1:
2446                 case CEE_LDC_I4_2:
2447                 case CEE_LDC_I4_3:
2448                 case CEE_LDC_I4_4:
2449                 case CEE_LDC_I4_5:
2450                 case CEE_LDC_I4_6:
2451                 case CEE_LDC_I4_7:
2452                 case CEE_LDC_I4_8:
2453                         CHECK_STACK_OVF (1);
2454                         NEW_ICONST (cfg, ins, (*ip) - CEE_LDC_I4_0);
2455                         ins->cil_code = ip;
2456                         ++ip;
2457                         *sp++ = ins;
2458                         break;
2459                 case CEE_LDC_I4_S:
2460                         CHECK_STACK_OVF (1);
2461                         ++ip;
2462                         NEW_ICONST (cfg, ins, *((signed char*)ip));
2463                         ins->cil_code = ip;
2464                         ++ip;
2465                         *sp++ = ins;
2466                         break;
2467                 case CEE_LDC_I4:
2468                         CHECK_STACK_OVF (1);
2469                         NEW_ICONST (cfg, ins, (gint32)read32 (ip + 1));
2470                         ins->cil_code = ip;
2471                         ip += 5;
2472                         *sp++ = ins;
2473                         break;
2474                 case CEE_LDC_I8:
2475                         CHECK_STACK_OVF (1);
2476                         MONO_INST_NEW (cfg, ins, OP_I8CONST);
2477                         ins->cil_code = ip;
2478                         ins->type = STACK_I8;
2479                         ++ip;
2480                         ins->inst_l = (gint64)read64 (ip);
2481                         ip += 8;
2482                         *sp++ = ins;
2483                         break;
2484                 case CEE_LDC_R4: {
2485                         float *f = g_malloc (sizeof (float));
2486                         CHECK_STACK_OVF (1);
2487                         MONO_INST_NEW (cfg, ins, OP_R4CONST);
2488                         ins->type = STACK_R8;
2489                         ++ip;
2490                         readr4 (ip, f);
2491                         ins->inst_p0 = f;
2492                         ip += 4;
2493                         *sp++ = ins;
2494                         break;
2495                 }
2496                 case CEE_LDC_R8: {
2497                         double *d = g_malloc (sizeof (double));
2498                         CHECK_STACK_OVF (1);
2499                         MONO_INST_NEW (cfg, ins, OP_R8CONST);
2500                         ins->type = STACK_R8;
2501                         ++ip;
2502                         readr8 (ip, d);
2503                         ins->inst_p0 = d;
2504                         ip += 8;
2505                         *sp++ = ins;
2506                         break;
2507                 }
2508                 case CEE_DUP: {
2509                         MonoInst *temp, *store;
2510                         CHECK_STACK (1);
2511                         CHECK_STACK_OVF (1);
2512                         sp--;
2513                         ins = *sp;
2514
2515                         /*
2516                          * small optimization: if the loaded value was from a local already,
2517                          * just load it twice.
2518                          */
2519                         if (ins->ssa_op == MONO_SSA_LOAD &&
2520                             (ins->inst_i0->opcode == OP_LOCAL || ins->inst_i0->opcode == OP_ARG)) {
2521                                 sp++;
2522                                 MONO_INST_NEW (cfg, temp, 0);
2523                                 *temp = *ins;
2524                                 temp->cil_code = ip;
2525                                 *sp++ = temp;
2526                         } else {
2527                                 temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
2528                                 temp->cil_code = ip;
2529                                 NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
2530                                 store->cil_code = ip;
2531                                 MONO_ADD_INS (bblock, store);
2532                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
2533                                 *sp++ = ins;
2534                                 ins->cil_code = ip;
2535                                 NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
2536                                 *sp++ = ins;
2537                                 ins->cil_code = ip;
2538                         }
2539                         ++ip;
2540                         inline_costs += 2;
2541                         break;
2542                 }
2543                 case CEE_POP:
2544                         CHECK_STACK (1);
2545                         MONO_INST_NEW (cfg, ins, CEE_POP);
2546                         MONO_ADD_INS (bblock, ins);
2547                         ins->cil_code = ip++;
2548                         --sp;
2549                         ins->inst_i0 = *sp;
2550                         break;
2551                 case CEE_JMP:
2552                         if (stack_start != sp)
2553                                 goto unverified;
2554                         MONO_INST_NEW (cfg, ins, CEE_JMP);
2555                         token = read32 (ip + 1);
2556                         /* FIXME: check the signature matches */
2557                         cmethod = mono_get_method (image, token, NULL);
2558                         /*
2559                          * The current magic trampoline can't handle this
2560                          * apparently, so we compile the method right away.
2561                          * Later, we may need to fix the trampoline or use a different one.
2562                          */
2563                         ins->inst_p0 = mono_compile_method (cmethod);
2564                         MONO_ADD_INS (bblock, ins);
2565                         ip += 5;
2566                         start_new_bblock = 1;
2567                         break;
2568                 case CEE_CALLI:
2569                 case CEE_CALL:
2570                 case CEE_CALLVIRT: {
2571                         MonoInst *addr = NULL;
2572                         MonoMethodSignature *fsig = NULL;
2573                         int temp, array_rank = 0;
2574                         int virtual = *ip == CEE_CALLVIRT;
2575
2576                         token = read32 (ip + 1);
2577
2578                         if (*ip == CEE_CALLI) {
2579                                 cmethod = NULL;
2580                                 CHECK_STACK (1);
2581                                 --sp;
2582                                 addr = *sp;
2583                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
2584                                         fsig = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
2585                                 else
2586                                         fsig = mono_metadata_parse_signature (image, token);
2587
2588                                 n = fsig->param_count + fsig->hasthis;
2589
2590                         } else {
2591                                 cmethod = mono_get_method (image, token, NULL);
2592
2593                                 if (!cmethod->klass->inited)
2594                                         mono_class_init (cmethod->klass);
2595
2596                                 if (cmethod->signature->pinvoke) {
2597 #ifdef MONO_USE_EXC_TABLES
2598                                         if (mono_method_blittable (cmethod)) {
2599                                                 fsig = cmethod->signature;
2600                                         } else {
2601 #endif
2602                                                 MonoMethod *wrapper = mono_marshal_get_native_wrapper (cmethod);
2603                                                 fsig = wrapper->signature;
2604 #ifdef MONO_USE_EXC_TABLES
2605                                         }
2606 #endif
2607                                 } else {
2608                                         fsig = cmethod->signature;
2609                                 }
2610
2611                                 n = fsig->param_count + fsig->hasthis;
2612
2613                                 if (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL &&
2614                                     cmethod->klass->parent == mono_defaults.array_class) {
2615                                         array_rank = cmethod->klass->rank;
2616                                 }
2617
2618                                 if (cmethod->string_ctor)
2619                                         g_assert_not_reached ();
2620
2621                         }
2622
2623                         CHECK_STACK (n);
2624
2625                         //g_assert (!virtual || fsig->hasthis);
2626
2627                         sp -= n;
2628
2629                         if (cmethod && (cfg->opt & MONO_OPT_INTRINS) && (ins = mini_get_opcode_for_method (cfg, cmethod, fsig, sp))) {
2630                                 ins->cil_code = ip;
2631
2632                                 if (MONO_TYPE_IS_VOID (fsig->ret)) {
2633                                         MONO_ADD_INS (bblock, ins);
2634                                 } else {
2635                                         type_to_eval_stack_type (fsig->ret, ins);
2636                                         *sp = ins;
2637                                         sp++;
2638                                 }
2639
2640                                 ip += 5;
2641                                 break;
2642                         }
2643
2644                         if ((cfg->opt & MONO_OPT_INLINE) && cmethod &&
2645                             (!virtual || !(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) || (cmethod->flags & METHOD_ATTRIBUTE_FINAL)) &&
2646                             mono_method_check_inlining (cmethod) &&
2647                             !g_list_find (dont_inline, cmethod)) {
2648                                 int costs;
2649                                 MonoBasicBlock *ebblock;
2650
2651                                 if ((costs = inline_method (cfg, cmethod, fsig, bblock, sp, ip, real_offset, dont_inline, &ebblock))) {
2652                                         ip += 5;
2653                                         real_offset += 5;
2654
2655                                         GET_BBLOCK (cfg, bbhash, bblock, ip);
2656                                         ebblock->next_bb = bblock;
2657                                         link_bblock (cfg, ebblock, bblock);
2658                                         if (!MONO_TYPE_IS_VOID (fsig->ret))
2659                                                 sp++;
2660
2661                                         if (sp != stack_start) {
2662                                                 handle_stack_args (cfg, ebblock, stack_start, sp - stack_start);
2663                                                 sp = stack_start;
2664                                         }
2665                                         start_new_bblock = 1;
2666
2667                                         inline_costs += costs;
2668                                         break;
2669                                 }
2670                         }
2671
2672                         inline_costs += 10 * num_calls++;
2673                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2674
2675                         /* tail recursion elimination */
2676                         if ((cfg->opt & MONO_OPT_TAILC) && *ip == CEE_CALL && cmethod == cfg->method && ip [5] == CEE_RET) {
2677                                 gboolean has_vtargs = FALSE;
2678                                 int i;
2679
2680                                 /* keep it simple */
2681                                 for (i =  fsig->param_count - 1; i >= 0; i--) {
2682                                         if (MONO_TYPE_ISSTRUCT (cmethod->signature->params [i]))
2683                                                 has_vtargs = TRUE;
2684                                 }
2685
2686                                 if (!has_vtargs) {
2687                                         for (i = 0; i < n; ++i) {
2688                                                 NEW_ARGSTORE (cfg, ins, i, sp [i]);
2689                                                 ins->cil_code = ip;
2690                                                 MONO_ADD_INS (bblock, ins);
2691                                         }
2692                                         MONO_INST_NEW (cfg, ins, CEE_BR);
2693                                         ins->cil_code = ip;
2694                                         MONO_ADD_INS (bblock, ins);
2695                                         tblock = start_bblock->out_bb [0];
2696                                         link_bblock (cfg, bblock, tblock);
2697                                         ins->inst_target_bb = tblock;
2698                                         start_new_bblock = 1;
2699                                         ip += 5;
2700
2701                                         if (!MONO_TYPE_IS_VOID (fsig->ret)) {
2702                                                 /* just create a dummy - the value is never used */
2703                                                 ins = mono_compile_create_var (cfg, fsig->ret, OP_LOCAL);
2704                                                 NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
2705                                                 sp++;
2706                                         }
2707
2708                                         break;
2709                                 }
2710                         }
2711
2712                         if (*ip == CEE_CALLI) {
2713
2714                                 if ((temp = mono_emit_calli (cfg, bblock, fsig, sp, addr, ip)) != -1) {
2715                                         NEW_TEMPLOAD (cfg, *sp, temp);
2716                                         sp++;
2717                                 }
2718
2719                         } else if (array_rank) {
2720                                 MonoMethodSignature *esig;
2721                                 MonoInst *addr;
2722
2723                                 if (strcmp (cmethod->name, "Set") == 0) { /* array Set */
2724                                         esig = mono_get_element_address_signature (fsig->param_count - 1);
2725
2726                                         temp = mono_emit_native_call (cfg, bblock, ves_array_element_address, esig, sp, ip, FALSE);
2727                                         NEW_TEMPLOAD (cfg, addr, temp);
2728                                         NEW_INDSTORE (cfg, ins, addr, sp [fsig->param_count], fsig->params [fsig->param_count - 1]);
2729                                         ins->cil_code = ip;
2730                                         if (ins->opcode == CEE_STOBJ) {
2731                                                 handle_stobj (cfg, bblock, addr, sp [fsig->param_count], ip, mono_class_from_mono_type (fsig->params [fsig->param_count-1]), FALSE, FALSE);
2732                                         } else {
2733                                                 MONO_ADD_INS (bblock, ins);
2734                                         }
2735
2736                                 } else if (strcmp (cmethod->name, "Get") == 0) { /* array Get */
2737                                         esig = mono_get_element_address_signature (fsig->param_count);
2738
2739                                         temp = mono_emit_native_call (cfg, bblock, ves_array_element_address, esig, sp, ip, FALSE);
2740                                         NEW_TEMPLOAD (cfg, addr, temp);
2741                                         NEW_INDLOAD (cfg, ins, addr, fsig->ret);
2742                                         ins->cil_code = ip;
2743
2744                                         *sp++ = ins;
2745                                 } else if (strcmp (cmethod->name, "Address") == 0) { /* array Address */
2746                                         /* implement me */
2747                                         esig = mono_get_element_address_signature (fsig->param_count);
2748
2749                                         temp = mono_emit_native_call (cfg, bblock, ves_array_element_address, esig, sp, ip, FALSE);
2750                                         NEW_TEMPLOAD (cfg, *sp, temp);
2751                                         sp++;
2752                                 } else {
2753                                         g_assert_not_reached ();
2754                                 }
2755
2756                         } else {
2757                                 if (0 && CODE_IS_STLOC (ip + 5) && (!MONO_TYPE_ISSTRUCT (fsig->ret)) && (!MONO_TYPE_IS_VOID (fsig->ret) || cmethod->string_ctor)) {
2758                                         /* no need to spill */
2759                                         ins = (MonoInst*)mono_emit_method_call (cfg, bblock, cmethod, fsig, sp, ip, virtual ? sp [0] : NULL);
2760                                         *sp++ = ins;
2761                                 } else {
2762                                         if ((temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, sp, ip, virtual ? sp [0] : NULL)) != -1) {
2763                                                 NEW_TEMPLOAD (cfg, *sp, temp);
2764                                                 sp++;
2765                                         }
2766                                 }
2767                         }
2768
2769                         ip += 5;
2770                         break;
2771                 }
2772                 case CEE_RET:
2773                         if (cfg->method != method) {
2774                                 /* return from inlined methode */
2775                                 if (return_var) {
2776                                         MonoInst *store;
2777                                         CHECK_STACK (1);
2778                                         --sp;
2779                                         //g_assert (returnvar != -1);
2780                                         NEW_TEMPSTORE (cfg, store, return_var->inst_c0, *sp);
2781                                         store->cil_code = sp [0]->cil_code;
2782                                         if (store->opcode == CEE_STOBJ) {
2783                                                 g_assert_not_reached ();
2784                                                 NEW_TEMPLOADA (cfg, store, return_var->inst_c0);
2785                                                 handle_stobj (cfg, bblock, store, *sp, sp [0]->cil_code, return_var->klass, FALSE, FALSE);
2786                                         } else
2787                                                 MONO_ADD_INS (bblock, store);
2788                                 }
2789                         } else {
2790                                 if (cfg->ret) {
2791                                         g_assert (!return_var);
2792                                         CHECK_STACK (1);
2793                                         --sp;
2794                                         MONO_INST_NEW (cfg, ins, CEE_NOP);
2795                                         ins->opcode = mono_type_to_stind (method->signature->ret);
2796                                         if (ins->opcode == CEE_STOBJ) {
2797                                                 NEW_RETLOADA (cfg, ins);
2798                                                 handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
2799                                         } else {
2800                                                 ins->opcode = OP_SETRET;
2801                                                 ins->cil_code = ip;
2802                                                 ins->inst_i0 = *sp;;
2803                                                 ins->inst_i1 = NULL;
2804                                                 MONO_ADD_INS (bblock, ins);
2805                                         }
2806                                 }
2807                         }
2808                         if (sp != stack_start)
2809                                 goto unverified;
2810                         MONO_INST_NEW (cfg, ins, CEE_BR);
2811                         ins->cil_code = ip++;
2812                         ins->inst_target_bb = end_bblock;
2813                         MONO_ADD_INS (bblock, ins);
2814                         link_bblock (cfg, bblock, end_bblock);
2815                         start_new_bblock = 1;
2816                         break;
2817                 case CEE_BR_S:
2818                         MONO_INST_NEW (cfg, ins, CEE_BR);
2819                         ins->cil_code = ip++;
2820                         MONO_ADD_INS (bblock, ins);
2821                         target = ip + 1 + (signed char)(*ip);
2822                         ++ip;
2823                         GET_BBLOCK (cfg, bbhash, tblock, target);
2824                         link_bblock (cfg, bblock, tblock);
2825                         CHECK_BBLOCK (target, ip, tblock);
2826                         ins->inst_target_bb = tblock;
2827                         if (sp != stack_start) {
2828                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2829                                 sp = stack_start;
2830                         }
2831                         start_new_bblock = 1;
2832                         inline_costs += 10;
2833                         break;
2834                 case CEE_BRFALSE_S:
2835                 case CEE_BRTRUE_S:
2836                         CHECK_STACK (1);
2837                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
2838                         ins->cil_code = ip++;
2839                         target = ip + 1 + *(signed char*)ip;
2840                         ip++;
2841                         ADD_UNCOND (ins->opcode == CEE_BRTRUE);
2842                         if (sp != stack_start) {
2843                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2844                                 sp = stack_start;
2845                         }
2846                         inline_costs += 10;
2847                         break;
2848                 case CEE_BEQ_S:
2849                 case CEE_BGE_S:
2850                 case CEE_BGT_S:
2851                 case CEE_BLE_S:
2852                 case CEE_BLT_S:
2853                 case CEE_BNE_UN_S:
2854                 case CEE_BGE_UN_S:
2855                 case CEE_BGT_UN_S:
2856                 case CEE_BLE_UN_S:
2857                 case CEE_BLT_UN_S:
2858                         CHECK_STACK (2);
2859                         MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
2860                         ins->cil_code = ip++;
2861                         target = ip + 1 + *(signed char*)ip;
2862                         ip++;
2863                         ADD_BINCOND (NULL);
2864                         if (sp != stack_start) {
2865                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2866                                 sp = stack_start;
2867                         }
2868                         inline_costs += 10;
2869                         break;
2870                 case CEE_BR:
2871                         MONO_INST_NEW (cfg, ins, CEE_BR);
2872                         ins->cil_code = ip++;
2873                         MONO_ADD_INS (bblock, ins);
2874                         target = ip + 4 + (gint32)read32(ip);
2875                         ip += 4;
2876                         GET_BBLOCK (cfg, bbhash, tblock, target);
2877                         link_bblock (cfg, bblock, tblock);
2878                         CHECK_BBLOCK (target, ip, tblock);
2879                         ins->inst_target_bb = tblock;
2880                         if (sp != stack_start) {
2881                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2882                                 sp = stack_start;
2883                         }
2884                         start_new_bblock = 1;
2885                         inline_costs += 10;
2886                         break;
2887                 case CEE_BRFALSE:
2888                 case CEE_BRTRUE:
2889                         CHECK_STACK (1);
2890                         MONO_INST_NEW (cfg, ins, *ip);
2891                         ins->cil_code = ip++;
2892                         target = ip + 4 + (gint32)read32(ip);
2893                         ip += 4;
2894                         ADD_UNCOND(ins->opcode == CEE_BRTRUE);
2895                         if (sp != stack_start) {
2896                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2897                                 sp = stack_start;
2898                         }
2899                         inline_costs += 10;
2900                         break;
2901                 case CEE_BEQ:
2902                 case CEE_BGE:
2903                 case CEE_BGT:
2904                 case CEE_BLE:
2905                 case CEE_BLT:
2906                 case CEE_BNE_UN:
2907                 case CEE_BGE_UN:
2908                 case CEE_BGT_UN:
2909                 case CEE_BLE_UN:
2910                 case CEE_BLT_UN:
2911                         CHECK_STACK (2);
2912                         MONO_INST_NEW (cfg, ins, *ip);
2913                         ins->cil_code = ip++;
2914                         target = ip + 4 + (gint32)read32(ip);
2915                         ip += 4;
2916                         ADD_BINCOND(NULL);
2917                         if (sp != stack_start) {
2918                                 handle_stack_args (cfg, bblock, stack_start, sp - stack_start);
2919                                 sp = stack_start;
2920                         }
2921                         inline_costs += 10;
2922                         break;
2923                 case CEE_SWITCH:
2924                         CHECK_STACK (1);
2925                         n = read32 (ip + 1);
2926                         MONO_INST_NEW (cfg, ins, *ip);
2927                         --sp;
2928                         ins->inst_left = *sp;
2929                         if (ins->inst_left->type != STACK_I4) goto unverified;
2930                         ins->cil_code = ip;
2931                         ip += 5;
2932                         target = ip + n * sizeof (guint32);
2933                         MONO_ADD_INS (bblock, ins);
2934                         GET_BBLOCK (cfg, bbhash, tblock, target);
2935                         link_bblock (cfg, bblock, tblock);
2936                         ins->klass = GUINT_TO_POINTER (n);
2937                         ins->inst_many_bb = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (n + 1));
2938                         ins->inst_many_bb [n] = tblock;
2939
2940                         for (i = 0; i < n; ++i) {
2941                                 GET_BBLOCK (cfg, bbhash, tblock, target + (gint32)read32(ip));
2942                                 link_bblock (cfg, bblock, tblock);
2943                                 ins->inst_many_bb [i] = tblock;
2944                                 ip += 4;
2945                         }
2946                         /* FIXME: handle stack args */
2947                         inline_costs += 20;
2948                         break;
2949                 case CEE_LDIND_I1:
2950                 case CEE_LDIND_U1:
2951                 case CEE_LDIND_I2:
2952                 case CEE_LDIND_U2:
2953                 case CEE_LDIND_I4:
2954                 case CEE_LDIND_U4:
2955                 case CEE_LDIND_I8:
2956                 case CEE_LDIND_I:
2957                 case CEE_LDIND_R4:
2958                 case CEE_LDIND_R8:
2959                 case CEE_LDIND_REF:
2960                         CHECK_STACK (1);
2961                         MONO_INST_NEW (cfg, ins, *ip);
2962                         ins->cil_code = ip;
2963                         --sp;
2964                         ins->inst_i0 = *sp;
2965                         *sp++ = ins;
2966                         ins->type = ldind_type [*ip - CEE_LDIND_I1];
2967                         ins->flags |= ins_flag;
2968                         ins_flag = 0;
2969                         ++ip;
2970                         break;
2971                 case CEE_STIND_REF:
2972                 case CEE_STIND_I1:
2973                 case CEE_STIND_I2:
2974                 case CEE_STIND_I4:
2975                 case CEE_STIND_I8:
2976                 case CEE_STIND_R4:
2977                 case CEE_STIND_R8:
2978                         CHECK_STACK (2);
2979                         MONO_INST_NEW (cfg, ins, *ip);
2980                         ins->cil_code = ip++;
2981                         sp -= 2;
2982                         handle_loaded_temps (cfg, bblock, stack_start, sp);
2983                         MONO_ADD_INS (bblock, ins);
2984                         ins->inst_i0 = sp [0];
2985                         ins->inst_i1 = sp [1];
2986                         ins->flags |= ins_flag;
2987                         ins_flag = 0;
2988                         inline_costs += 1;
2989                         break;
2990                 case CEE_ADD:
2991                 case CEE_SUB:
2992                 case CEE_MUL:
2993                 case CEE_DIV:
2994                 case CEE_DIV_UN:
2995                 case CEE_REM:
2996                 case CEE_REM_UN:
2997                 case CEE_AND:
2998                 case CEE_OR:
2999                 case CEE_XOR:
3000                 case CEE_SHL:
3001                 case CEE_SHR:
3002                 case CEE_SHR_UN:
3003                         CHECK_STACK (2);
3004                         ADD_BINOP (*ip);
3005                         ip++;
3006                         break;
3007                 case CEE_NEG:
3008                 case CEE_NOT:
3009                 case CEE_CONV_I1:
3010                 case CEE_CONV_I2:
3011                 case CEE_CONV_I4:
3012                 case CEE_CONV_I8:
3013                 case CEE_CONV_R4:
3014                 case CEE_CONV_R8:
3015                 case CEE_CONV_U4:
3016                 case CEE_CONV_U8:
3017                 case CEE_CONV_OVF_I8:
3018                 case CEE_CONV_OVF_U8:
3019                 case CEE_CONV_R_UN:
3020                         CHECK_STACK (1);
3021                         ADD_UNOP (*ip);
3022                         ip++;
3023                         break;
3024                 case CEE_CONV_OVF_I4:
3025                 case CEE_CONV_OVF_I1:
3026                 case CEE_CONV_OVF_I2:
3027                 case CEE_CONV_OVF_I:
3028                 case CEE_CONV_OVF_U:
3029                         CHECK_STACK (1);
3030
3031                         if (sp [-1]->type == STACK_R8) {
3032                                 ADD_UNOP (CEE_CONV_OVF_I8);
3033                                 ADD_UNOP (*ip);
3034                         } else {
3035                                 ADD_UNOP (*ip);
3036                         }
3037
3038                         ip++;
3039                         break;
3040                 case CEE_CONV_OVF_U1:
3041                 case CEE_CONV_OVF_U2:
3042                 case CEE_CONV_OVF_U4:
3043                         CHECK_STACK (1);
3044
3045                         if (sp [-1]->type == STACK_R8) {
3046                                 ADD_UNOP (CEE_CONV_OVF_U8);
3047                                 ADD_UNOP (*ip);
3048                         } else {
3049                                 ADD_UNOP (*ip);
3050                         }
3051
3052                         ip++;
3053                         break;
3054                 case CEE_CONV_OVF_I1_UN:
3055                 case CEE_CONV_OVF_I2_UN:
3056                 case CEE_CONV_OVF_I4_UN:
3057                 case CEE_CONV_OVF_I8_UN:
3058                 case CEE_CONV_OVF_U1_UN:
3059                 case CEE_CONV_OVF_U2_UN:
3060                 case CEE_CONV_OVF_U4_UN:
3061                 case CEE_CONV_OVF_U8_UN:
3062                 case CEE_CONV_OVF_I_UN:
3063                 case CEE_CONV_OVF_U_UN:
3064                         CHECK_STACK (1);
3065                         ADD_UNOP (*ip);
3066                         ip++;
3067                         break;
3068                 case CEE_CPOBJ:
3069                         g_error ("opcode 0x%02x not handled", *ip);
3070                         break;
3071                 case CEE_LDOBJ: {
3072                         MonoInst *iargs [3];
3073                         CHECK_STACK (1);
3074                         --sp;
3075                         token = read32 (ip + 1);
3076                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3077                                 klass = mono_method_get_wrapper_data (method, token);
3078                         else
3079                                 klass = mono_class_get (image, token);
3080
3081                         mono_class_init (klass);
3082                         n = mono_class_value_size (klass, NULL);
3083                         ins = mono_compile_create_var (cfg, &klass->byval_arg, OP_LOCAL);
3084                         NEW_TEMPLOADA (cfg, iargs [0], ins->inst_c0);
3085                         iargs [1] = *sp;
3086                         NEW_ICONST (cfg, iargs [2], n);
3087                         iargs [2]->cil_code = ip;
3088
3089                         mono_emit_jit_icall (cfg, bblock, helper_memcpy, iargs, ip);
3090                         NEW_TEMPLOAD (cfg, *sp, ins->inst_c0);
3091                         ++sp;
3092                         ip += 5;
3093                         inline_costs += 1;
3094                         break;
3095                 }
3096                 case CEE_LDSTR:
3097                         CHECK_STACK_OVF (1);
3098                         n = read32 (ip + 1);
3099
3100                         if (mono_compile_aot) {
3101                                 cfg->ldstr_list = g_list_prepend (cfg->ldstr_list, (gpointer)n);
3102                         }
3103
3104                         if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot) {
3105                                 int temp;
3106                                 MonoInst *iargs [3];
3107                                 NEW_TEMPLOAD (cfg, iargs [0], mono_get_domainvar (cfg)->inst_c0);
3108                                 NEW_IMAGECONST (cfg, iargs [1], image);
3109                                 NEW_ICONST (cfg, iargs [2], mono_metadata_token_index (n));
3110                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldstr, iargs, ip);
3111                                 NEW_TEMPLOAD (cfg, *sp, temp);
3112                                 mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
3113                         } else {
3114                                 NEW_PCONST (cfg, ins, NULL);
3115                                 ins->cil_code = ip;
3116                                 ins->type = STACK_OBJ;
3117                                 ins->inst_p0 = mono_ldstr (cfg->domain, image, mono_metadata_token_index (n));
3118                                 *sp = ins;
3119                         }
3120                         sp++;
3121                         ip += 5;
3122                         break;
3123                 case CEE_NEWOBJ: {
3124                         MonoInst *iargs [2];
3125                         int temp;
3126
3127                         token = read32 (ip + 1);
3128                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
3129                                 cmethod = mono_method_get_wrapper_data (method, token);
3130                         } else
3131                                 cmethod = mono_get_method (image, token, NULL);
3132
3133                         mono_class_init (cmethod->klass);
3134
3135                         n = cmethod->signature->param_count;
3136                         CHECK_STACK (n);
3137
3138                         /* move the args to allow room for 'this' in the first position */
3139                         while (n--) {
3140                                 --sp;
3141                                 sp [1] = sp [0];
3142                         }
3143
3144                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3145
3146
3147                         if (cmethod->klass->parent == mono_defaults.array_class) {
3148                                 NEW_METHODCONST (cfg, *sp, cmethod);
3149                                 temp = mono_emit_native_call (cfg, bblock, mono_array_new_va, cmethod->signature, sp, ip, FALSE);
3150
3151                         } else if (cmethod->string_ctor) {
3152                                 /* we simply pass a null pointer */
3153                                 NEW_PCONST (cfg, *sp, NULL);
3154                                 /* now call the string ctor */
3155                                 temp = mono_emit_method_call_spilled (cfg, bblock, cmethod, sp, ip, NULL);
3156                         } else {
3157                                 if (cmethod->klass->valuetype) {
3158                                         iargs [0] = mono_compile_create_var (cfg, &cmethod->klass->byval_arg, OP_LOCAL);
3159                                         temp = iargs [0]->inst_c0;
3160                                         NEW_TEMPLOADA (cfg, *sp, temp);
3161                                 } else {
3162                                         if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot) {
3163                                                 NEW_DOMAINCONST (cfg, iargs [0]);
3164                                                 NEW_CLASSCONST (cfg, iargs [1], cmethod->klass);
3165
3166                                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
3167                                         } else {
3168                                                 MonoVTable *vtable = mono_class_vtable (cfg->domain, cmethod->klass);
3169                                                 NEW_PCONST (cfg, iargs [0], vtable);
3170                                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new_specific, iargs, ip);
3171                                         }
3172                                         NEW_TEMPLOAD (cfg, *sp, temp);
3173                                 }
3174
3175                                 /* FIXME: currently disabled because of bug #42175 */
3176                                 if (0 && (cfg->opt & MONO_OPT_INLINE) && cmethod &&
3177                                     mono_method_check_inlining (cmethod) &&
3178                                     !mono_class_is_subclass_of (cmethod->klass, mono_defaults.exception_class, FALSE) &&
3179                                     !g_list_find (dont_inline, cmethod)) {
3180                                         int costs;
3181                                         MonoBasicBlock *ebblock;
3182                                         if ((costs = inline_method (cfg, cmethod, cmethod->signature, bblock, sp, ip, real_offset, dont_inline, &ebblock))) {
3183
3184                                                 GET_BBLOCK (cfg, bbhash, bblock, ip + 5);
3185                                                 ebblock->next_bb = bblock;
3186                                                 link_bblock (cfg, ebblock, bblock);
3187
3188                                                 /*if (sp != stack_start) {
3189                                                         handle_stack_args (cfg, ebblock, stack_start, sp - stack_start);
3190                                                         sp = stack_start;
3191                                                 }
3192                                                 start_new_bblock = 1;*/
3193
3194                                                 inline_costs += costs;
3195                                                 /*g_print ("inlined newobj for %s\n", cmethod->klass->name);*/
3196                                         }
3197                                 } else {
3198                                         /* now call the actual ctor */
3199                                         mono_emit_method_call_spilled (cfg, bblock, cmethod, sp, ip, NULL);
3200                                 }
3201                         }
3202
3203                         NEW_TEMPLOAD (cfg, *sp, temp);
3204                         sp++;
3205
3206                         ip += 5;
3207                         inline_costs += 5;
3208                         break;
3209                 }
3210                 case CEE_ISINST:
3211                         CHECK_STACK (1);
3212                         MONO_INST_NEW (cfg, ins, *ip);
3213                         --sp;
3214                         klass = mono_class_get (image, read32 (ip + 1));
3215                         mono_class_init (klass);
3216                         ins->type = STACK_OBJ;
3217                         ins->inst_left = *sp;
3218                         ins->inst_newa_class = klass;
3219                         ins->cil_code = ip;
3220                         ip += 5;
3221                         *sp++ = ins;
3222                         break;
3223                 case CEE_UNBOX: {
3224                         MonoInst *add, *vtoffset;
3225
3226                         CHECK_STACK (1);
3227                         --sp;
3228                         token = read32 (ip + 1);
3229                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3230                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3231                         else
3232                                 klass = mono_class_get (image, token);
3233                         mono_class_init (klass);
3234
3235
3236                         MONO_INST_NEW (cfg, ins, OP_UNBOXCAST);
3237                         ins->type = STACK_OBJ;
3238                         ins->inst_left = *sp;
3239                         ins->klass = klass;
3240                         ins->inst_newa_class = klass;
3241                         ins->cil_code = ip;
3242
3243                         MONO_INST_NEW (cfg, add, CEE_ADD);
3244                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
3245                         add->inst_left = ins;
3246                         add->inst_right = vtoffset;
3247                         add->type = STACK_MP;
3248                         *sp++ = add;
3249                         ip += 5;
3250                         inline_costs += 2;
3251                         break;
3252                 }
3253                 case CEE_CASTCLASS:
3254                         CHECK_STACK (1);
3255                         MONO_INST_NEW (cfg, ins, *ip);
3256                         --sp;
3257                         klass = mono_class_get (image, read32 (ip + 1));
3258                         mono_class_init (klass);
3259                         ins->type = STACK_OBJ;
3260                         ins->inst_left = *sp;
3261                         ins->klass = klass;
3262                         ins->inst_newa_class = klass;
3263                         ins->cil_code = ip;
3264                         ip += 5;
3265                         *sp++ = ins;
3266                         break;
3267                 case CEE_THROW:
3268                         CHECK_STACK (1);
3269                         MONO_INST_NEW (cfg, ins, *ip);
3270                         --sp;
3271                         ins->inst_left = *sp;
3272                         ins->cil_code = ip++;
3273                         MONO_ADD_INS (bblock, ins);
3274                         sp = stack_start;
3275                         start_new_bblock = 1;
3276                         break;
3277                 case CEE_LDFLD:
3278                 case CEE_LDFLDA:
3279                 case CEE_STFLD: {
3280                         MonoInst *offset_ins;
3281                         MonoClassField *field;
3282                         guint foffset;
3283
3284                         if (*ip == CEE_STFLD) {
3285                                 CHECK_STACK (2);
3286                                 sp -= 2;
3287                         } else {
3288                                 CHECK_STACK (1);
3289                                 --sp;
3290                         }
3291                         // FIXME: enable this test later.
3292                         //if (sp [0]->type != STACK_OBJ && sp [0]->type != STACK_MP)
3293                         //      goto unverified;
3294                         token = read32 (ip + 1);
3295                         field = mono_field_from_token (image, token, &klass);
3296                         mono_class_init (klass);
3297                         foffset = klass->valuetype? field->offset - sizeof (MonoObject): field->offset;
3298                         /* FIXME: mark instructions for use in SSA */
3299                         if (*ip == CEE_STFLD) {
3300                                 if (klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) {
3301                                         /* fixme: we need to inline that call somehow */
3302                                         MonoMethod *stfld_wrapper = mono_marshal_get_stfld_wrapper (field->type);
3303                                         MonoInst *iargs [5];
3304                                         iargs [0] = sp [0];
3305                                         NEW_CLASSCONST (cfg, iargs [1], klass);
3306                                         NEW_FIELDCONST (cfg, iargs [2], field);
3307                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
3308                                         iargs [4] = sp [1];
3309                                         mono_emit_method_call_spilled (cfg, bblock, stfld_wrapper, iargs, ip, NULL);
3310                                 } else {
3311                                         MonoInst *store;
3312                                         NEW_ICONST (cfg, offset_ins, foffset);
3313                                         MONO_INST_NEW (cfg, ins, CEE_ADD);
3314                                         ins->cil_code = ip;
3315                                         ins->inst_left = *sp;
3316                                         ins->inst_right = offset_ins;
3317                                         ins->type = STACK_MP;
3318
3319                                         MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
3320                                         store->cil_code = ip;
3321                                         store->inst_left = ins;
3322                                         store->inst_right = sp [1];
3323                                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3324                                         store->flags |= ins_flag;
3325                                         ins_flag = 0;
3326                                         if (store->opcode == CEE_STOBJ) {
3327                                                 handle_stobj (cfg, bblock, ins, sp [1], ip,
3328                                                               mono_class_from_mono_type (field->type), FALSE, FALSE);
3329                                         } else
3330                                                 MONO_ADD_INS (bblock, store);
3331                                 }
3332                         } else {
3333                                 if (klass->marshalbyref && !MONO_CHECK_THIS (sp [0])) {
3334                                         /* fixme: we need to inline that call somehow */
3335                                         MonoMethod *ldfld_wrapper = mono_marshal_get_ldfld_wrapper (field->type);
3336                                         MonoInst *iargs [4];
3337                                         int temp;
3338                                         iargs [0] = sp [0];
3339                                         NEW_CLASSCONST (cfg, iargs [1], klass);
3340                                         NEW_FIELDCONST (cfg, iargs [2], field);
3341                                         NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
3342                                         temp = mono_emit_method_call_spilled (cfg, bblock, ldfld_wrapper, iargs, ip, NULL);
3343                                         if (*ip == CEE_LDFLDA) {
3344                                                 /* not sure howto handle this */
3345                                                 NEW_TEMPLOADA (cfg, *sp, temp);
3346                                         } else {
3347                                                 NEW_TEMPLOAD (cfg, *sp, temp);
3348                                         }
3349                                         sp++;
3350                                 } else {
3351                                         NEW_ICONST (cfg, offset_ins, foffset);
3352                                         MONO_INST_NEW (cfg, ins, CEE_ADD);
3353                                         ins->cil_code = ip;
3354                                         ins->inst_left = *sp;
3355                                         ins->inst_right = offset_ins;
3356                                         ins->type = STACK_MP;
3357
3358                                         if (*ip == CEE_LDFLDA) {
3359                                                 *sp++ = ins;
3360                                         } else {
3361                                                 MonoInst *load;
3362                                                 MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
3363                                                 type_to_eval_stack_type (field->type, load);
3364                                                 load->cil_code = ip;
3365                                                 load->inst_left = ins;
3366                                                 load->flags |= ins_flag;
3367                                                 ins_flag = 0;
3368                                                 *sp++ = load;
3369                                         }
3370                                 }
3371                         }
3372                         ip += 5;
3373                         break;
3374                 }
3375                 case CEE_LDSFLD:
3376                 case CEE_LDSFLDA:
3377                 case CEE_STSFLD: {
3378                         MonoClassField *field;
3379                         MonoVTable *vtable;
3380
3381                         token = read32 (ip + 1);
3382
3383                         field = mono_field_from_token (image, token, &klass);
3384                         mono_class_init (klass);
3385
3386                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3387
3388                         if (((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot)) {
3389                                 int temp;
3390                                 MonoInst *iargs [2];
3391                                 g_assert (field->parent);
3392                                 NEW_TEMPLOAD (cfg, iargs [0], mono_get_domainvar (cfg)->inst_c0);
3393                                 NEW_FIELDCONST (cfg, iargs [1], field);
3394                                 temp = mono_emit_jit_icall (cfg, bblock, mono_class_static_field_address, iargs, ip);
3395                                 NEW_TEMPLOAD (cfg, ins, temp);
3396                         } else {
3397                                 gpointer addr;
3398                                 vtable = mono_class_vtable (cfg->domain, klass);
3399                                 if (!cfg->domain->thread_static_fields || !(addr = g_hash_table_lookup (cfg->domain->thread_static_fields, field))) {
3400                                         addr = (char*)vtable->data + field->offset;
3401                                         NEW_PCONST (cfg, ins, addr);
3402                                         ins->cil_code = ip;
3403                                 } else {
3404                                         /*
3405                                          * insert call to mono_threads_get_static_data (GPOINTER_TO_UINT (addr))
3406                                          * This could be later optimized to do just a couple of
3407                                          * memory dereferences with constant offsets.
3408                                          */
3409                                         int temp;
3410                                         MonoInst *iargs [1];
3411                                         NEW_ICONST (cfg, iargs [0], GPOINTER_TO_UINT (addr));
3412                                         temp = mono_emit_jit_icall (cfg, bblock, mono_threads_get_static_data, iargs, ip);
3413                                         NEW_TEMPLOAD (cfg, ins, temp);
3414                                 }
3415                         }
3416
3417                         /* FIXME: mark instructions for use in SSA */
3418                         if (*ip == CEE_LDSFLDA) {
3419                                 *sp++ = ins;
3420                         } else if (*ip == CEE_STSFLD) {
3421                                 MonoInst *store;
3422                                 CHECK_STACK (1);
3423                                 sp--;
3424                                 MONO_INST_NEW (cfg, store, mono_type_to_stind (field->type));
3425                                 store->cil_code = ip;
3426                                 store->inst_left = ins;
3427                                 store->inst_right = sp [0];
3428                                 store->flags |= ins_flag;
3429                                 ins_flag = 0;
3430
3431                                 if (store->opcode == CEE_STOBJ) {
3432                                         handle_stobj (cfg, bblock, ins, sp [0], ip, mono_class_from_mono_type (field->type), FALSE, FALSE);
3433                                 } else
3434                                         MONO_ADD_INS (bblock, store);
3435                         } else {
3436                                 MonoInst *load;
3437                                 CHECK_STACK_OVF (1);
3438                                 MONO_INST_NEW (cfg, load, mono_type_to_ldind (field->type));
3439                                 type_to_eval_stack_type (field->type, load);
3440                                 load->cil_code = ip;
3441                                 load->inst_left = ins;
3442                                 *sp++ = load;
3443                                 load->flags |= ins_flag;
3444                                 ins_flag = 0;
3445                         /* fixme: dont see the problem why this does not work */
3446                                 //cfg->disable_aot = TRUE;
3447                         }
3448                         ip += 5;
3449                         break;
3450                 }
3451                 case CEE_STOBJ:
3452                         CHECK_STACK (2);
3453                         sp -= 2;
3454                         token = read32 (ip + 1);
3455                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3456                                 klass = mono_method_get_wrapper_data (method, token);
3457                         else
3458                                 klass = mono_class_get (image, token);
3459                         mono_class_init (klass);
3460                         handle_stobj (cfg, bblock, sp [0], sp [1], ip, klass, FALSE, FALSE);
3461                         ip += 5;
3462                         inline_costs += 1;
3463                         break;
3464                 case CEE_BOX: {
3465                         MonoInst *iargs [2];
3466                         MonoInst *load, *vtoffset, *add, *val, *vstore;
3467                         int temp;
3468                         CHECK_STACK (1);
3469                         --sp;
3470                         val = *sp;
3471                         token = read32 (ip + 1);
3472                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3473                                 klass = mono_method_get_wrapper_data (method, token);
3474                         else
3475                                 klass = mono_class_get (image, token);
3476                         mono_class_init (klass);
3477
3478                         /* much like NEWOBJ */
3479                         NEW_DOMAINCONST (cfg, iargs [0]);
3480                         NEW_CLASSCONST (cfg, iargs [1], klass);
3481
3482                         temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
3483                         NEW_TEMPLOAD (cfg, load, temp);
3484                         NEW_ICONST (cfg, vtoffset, sizeof (MonoObject));
3485                         MONO_INST_NEW (cfg, add, CEE_ADD);
3486                         add->inst_left = load;
3487                         add->inst_right = vtoffset;
3488                         add->cil_code = ip;
3489                         add->klass = klass;
3490                         MONO_INST_NEW (cfg, vstore, CEE_STIND_I);
3491                         vstore->opcode = mono_type_to_stind (&klass->byval_arg);
3492                         vstore->cil_code = ip;
3493                         vstore->inst_left = add;
3494                         vstore->inst_right = val;
3495
3496                         if (vstore->opcode == CEE_STOBJ) {
3497                                 handle_stobj (cfg, bblock, add, val, ip, klass, FALSE, FALSE);
3498                         } else
3499                                 MONO_ADD_INS (bblock, vstore);
3500
3501                         NEW_TEMPLOAD (cfg, load, temp);
3502                         *sp++ = load;
3503                         ip += 5;
3504                         inline_costs += 1;
3505                         break;
3506                 }
3507                 case CEE_NEWARR:
3508                         CHECK_STACK (1);
3509                         MONO_INST_NEW (cfg, ins, *ip);
3510                         ins->cil_code = ip;
3511                         --sp;
3512
3513                         token = read32 (ip + 1);
3514
3515                         /* allocate the domainvar - becaus this is used in decompose_foreach */
3516                         if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot)
3517                                 mono_get_domainvar (cfg);
3518
3519                         if (method->wrapper_type != MONO_WRAPPER_NONE)
3520                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3521                         else
3522                                 klass = mono_class_get (image, token);
3523
3524                         mono_class_init (klass);
3525                         ins->inst_newa_class = klass;
3526                         ins->inst_newa_len = *sp;
3527                         ins->type = STACK_OBJ;
3528                         ip += 5;
3529                         *sp++ = ins;
3530                         inline_costs += 1;
3531                         break;
3532                 case CEE_LDLEN:
3533                         CHECK_STACK (1);
3534                         MONO_INST_NEW (cfg, ins, *ip);
3535                         ins->cil_code = ip++;
3536                         --sp;
3537                         ins->inst_left = *sp;
3538                         ins->type = STACK_PTR;
3539                         *sp++ = ins;
3540                         break;
3541                 case CEE_LDELEMA:
3542                         CHECK_STACK (2);
3543                         sp -= 2;
3544                         klass = mono_class_get (image, read32 (ip + 1));
3545                         mono_class_init (klass);
3546                         NEW_LDELEMA (cfg, ins, sp, klass);
3547                         ins->cil_code = ip;
3548                         *sp++ = ins;
3549                         ip += 5;
3550                         break;
3551                 case CEE_LDELEM_I1:
3552                 case CEE_LDELEM_U1:
3553                 case CEE_LDELEM_I2:
3554                 case CEE_LDELEM_U2:
3555                 case CEE_LDELEM_I4:
3556                 case CEE_LDELEM_U4:
3557                 case CEE_LDELEM_I8:
3558                 case CEE_LDELEM_I:
3559                 case CEE_LDELEM_R4:
3560                 case CEE_LDELEM_R8:
3561                 case CEE_LDELEM_REF: {
3562                         MonoInst *load;
3563                         /*
3564                          * translate to:
3565                          * ldind.x (ldelema (array, index))
3566                          * ldelema does the bounds check
3567                          */
3568                         CHECK_STACK (2);
3569                         sp -= 2;
3570                         klass = array_access_to_klass (*ip);
3571                         NEW_LDELEMA (cfg, load, sp, klass);
3572                         load->cil_code = ip;
3573                         MONO_INST_NEW (cfg, ins, ldelem_to_ldind [*ip - CEE_LDELEM_I1]);
3574                         ins->cil_code = ip;
3575                         ins->inst_left = load;
3576                         *sp++ = ins;
3577                         ins->type = ldind_type [ins->opcode - CEE_LDIND_I1];
3578                         ++ip;
3579                         break;
3580                 }
3581                 case CEE_STELEM_I:
3582                 case CEE_STELEM_I1:
3583                 case CEE_STELEM_I2:
3584                 case CEE_STELEM_I4:
3585                 case CEE_STELEM_I8:
3586                 case CEE_STELEM_R4:
3587                 case CEE_STELEM_R8: {
3588                         MonoInst *load;
3589                         /*
3590                          * translate to:
3591                          * stind.x (ldelema (array, index), val)
3592                          * ldelema does the bounds check
3593                          */
3594                         CHECK_STACK (3);
3595                         sp -= 3;
3596                         klass = array_access_to_klass (*ip);
3597                         NEW_LDELEMA (cfg, load, sp, klass);
3598                         load->cil_code = ip;
3599                         MONO_INST_NEW (cfg, ins, stelem_to_stind [*ip - CEE_STELEM_I]);
3600                         ins->cil_code = ip;
3601                         ins->inst_left = load;
3602                         ins->inst_right = sp [2];
3603                         ++ip;
3604                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3605                         MONO_ADD_INS (bblock, ins);
3606                         /* FIXME: add the implicit STELEM_REF castclass */
3607                         inline_costs += 1;
3608                         cfg->disable_ssa = TRUE;
3609                         break;
3610                 }
3611                 case CEE_STELEM_REF: {
3612                         MonoInst *iargs [3];
3613
3614                         CHECK_STACK (3);
3615                         sp -= 3;
3616
3617                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3618
3619                         iargs [2] = sp [2];
3620                         iargs [1] = sp [1];
3621                         iargs [0] = sp [0];
3622
3623                         mono_emit_jit_icall (cfg, bblock, helper_stelem_ref, iargs, ip);
3624
3625                         /*
3626                         MonoInst *group;
3627                         NEW_GROUP (cfg, group, sp [0], sp [1]);
3628                         MONO_INST_NEW (cfg, ins, CEE_STELEM_REF);
3629                         ins->cil_code = ip;
3630                         ins->inst_left = group;
3631                         ins->inst_right = sp [2];
3632                         MONO_ADD_INS (bblock, ins);
3633                         */
3634
3635                         ++ip;
3636                         inline_costs += 1;
3637                         cfg->disable_ssa = TRUE;
3638                         break;
3639                 }
3640                 case CEE_CKFINITE: {
3641                         MonoInst *store, *temp;
3642                         CHECK_STACK (1);
3643
3644                         /* this instr. can throw exceptions as side effect,
3645                          * so we cant eliminate dead code which contains CKFINITE opdodes.
3646                          * Spilling to memory makes sure that we always perform
3647                          * this check */
3648
3649
3650                         MONO_INST_NEW (cfg, ins, CEE_CKFINITE);
3651                         ins->cil_code = ip;
3652                         ins->inst_left = sp [-1];
3653                         temp = mono_compile_create_var (cfg, &mono_defaults.double_class->byval_arg, OP_LOCAL);
3654
3655                         NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
3656                         store->cil_code = ip;
3657                         MONO_ADD_INS (bblock, store);
3658
3659                         NEW_TEMPLOAD (cfg, sp [-1], temp->inst_c0);
3660
3661                         ++ip;
3662                         break;
3663                 }
3664                 case CEE_REFANYVAL:
3665                 case CEE_MKREFANY:
3666                         g_error ("opcode 0x%02x not handled", *ip);
3667                         break;
3668                 case CEE_LDTOKEN: {
3669                         gpointer handle;
3670                         MonoClass *handle_class;
3671
3672                         CHECK_STACK_OVF (1);
3673
3674                         n = read32 (ip + 1);
3675
3676                         handle = mono_ldtoken (image, n, &handle_class);
3677                         mono_class_init (handle_class);
3678
3679                         if (((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot)) {
3680                                 int temp;
3681                                 MonoInst *res, *store, *addr, *vtvar, *iargs [2];
3682
3683                                 vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
3684
3685                                 NEW_IMAGECONST (cfg, iargs [0], image);
3686                                 NEW_ICONST (cfg, iargs [1], n);
3687                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldtoken_wrapper, iargs, ip);
3688                                 NEW_TEMPLOAD (cfg, res, temp);
3689                                 NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
3690                                 NEW_INDSTORE (cfg, store, addr, res, &mono_defaults.int_class->byval_arg);
3691                                 MONO_ADD_INS (bblock, store);
3692                                 NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
3693                         } else {
3694                                 if ((ip [5] == CEE_CALL) && (cmethod = mono_get_method (image, read32 (ip + 6), NULL)) &&
3695                                                 (cmethod->klass == mono_defaults.monotype_class->parent) &&
3696                                                 (strcmp (cmethod->name, "GetTypeFromHandle") == 0)) {
3697                                         MonoClass *tclass = mono_class_from_mono_type (handle);
3698                                         mono_class_init (tclass);
3699                                         NEW_PCONST (cfg, ins, mono_type_get_object (cfg->domain, handle));
3700                                         ins->type = STACK_OBJ;
3701                                         ins->klass = cmethod->klass;
3702                                         ip += 5;
3703                                 } else {
3704                                         NEW_PCONST (cfg, ins, handle);
3705                                         ins->type = STACK_VTYPE;
3706                                         ins->klass = handle_class;
3707                                 }
3708                         }
3709
3710                         *sp++ = ins;
3711                         ip += 5;
3712                         break;
3713                 }
3714                 case CEE_CONV_U2:
3715                 case CEE_CONV_U1:
3716                 case CEE_CONV_I:
3717                         CHECK_STACK (1);
3718                         ADD_UNOP (*ip);
3719                         ip++;
3720                         break;
3721                 case CEE_ADD_OVF:
3722                 case CEE_ADD_OVF_UN:
3723                 case CEE_MUL_OVF:
3724                 case CEE_MUL_OVF_UN:
3725                 case CEE_SUB_OVF:
3726                 case CEE_SUB_OVF_UN:
3727                         CHECK_STACK (2);
3728                         ADD_BINOP (*ip);
3729                         ip++;
3730                         break;
3731                 case CEE_ENDFINALLY:
3732                         /* FIXME: check stack state */
3733                         MONO_INST_NEW (cfg, ins, *ip);
3734                         MONO_ADD_INS (bblock, ins);
3735                         ins->cil_code = ip++;
3736                         start_new_bblock = 1;
3737                         break;
3738                 case CEE_LEAVE:
3739                 case CEE_LEAVE_S: {
3740                         GList *handlers;
3741                         if (*ip == CEE_LEAVE) {
3742                                 target = ip + 5 + (gint32)read32(ip + 1);
3743                         } else {
3744                                 target = ip + 2 + (signed char)(ip [1]);
3745                         }
3746
3747                         /* empty the stack */
3748                         while (sp != stack_start) {
3749                                 MONO_INST_NEW (cfg, ins, CEE_POP);
3750                                 ins->cil_code = ip;
3751                                 sp--;
3752                                 ins->inst_i0 = *sp;
3753                                 MONO_ADD_INS (bblock, ins);
3754                         }
3755
3756                         /* fixme: call fault handler ? */
3757
3758                         if ((handlers = mono_find_final_block (cfg, ip, target, MONO_EXCEPTION_CLAUSE_FINALLY))) {
3759                                 GList *tmp;
3760                                 for (tmp = handlers; tmp; tmp = tmp->next) {
3761                                         tblock = tmp->data;
3762                                         link_bblock (cfg, bblock, tblock);
3763                                         MONO_INST_NEW (cfg, ins, OP_HANDLER);
3764                                         ins->cil_code = ip;
3765                                         ins->inst_target_bb = tblock;
3766                                         MONO_ADD_INS (bblock, ins);
3767                                 }
3768                                 g_list_free (handlers);
3769                         }
3770
3771                         MONO_INST_NEW (cfg, ins, CEE_BR);
3772                         ins->cil_code = ip;
3773                         MONO_ADD_INS (bblock, ins);
3774                         GET_BBLOCK (cfg, bbhash, tblock, target);
3775                         link_bblock (cfg, bblock, tblock);
3776                         CHECK_BBLOCK (target, ip, tblock);
3777                         ins->inst_target_bb = tblock;
3778                         start_new_bblock = 1;
3779
3780                         if (*ip == CEE_LEAVE)
3781                                 ip += 5;
3782                         else
3783                                 ip += 2;
3784
3785                         break;
3786                 }
3787                 case CEE_STIND_I:
3788                         CHECK_STACK (2);
3789                         MONO_INST_NEW (cfg, ins, *ip);
3790                         sp -= 2;
3791                         handle_loaded_temps (cfg, bblock, stack_start, sp);
3792                         MONO_ADD_INS (bblock, ins);
3793                         ins->cil_code = ip++;
3794                         ins->inst_i0 = sp [0];
3795                         ins->inst_i1 = sp [1];
3796                         inline_costs += 1;
3797                         break;
3798                 case CEE_CONV_U:
3799                         CHECK_STACK (1);
3800                         ADD_UNOP (*ip);
3801                         ip++;
3802                         break;
3803                 /* trampoline mono specific opcodes */
3804                 case MONO_CUSTOM_PREFIX: {
3805
3806                         g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
3807
3808                         switch (ip [1]) {
3809
3810                         case CEE_MONO_FUNC1: {
3811                                 int temp;
3812                                 gpointer func = NULL;
3813                                 CHECK_STACK (1);
3814                                 sp--;
3815
3816                                 switch (ip [2]) {
3817                                 case MONO_MARSHAL_CONV_STR_LPWSTR:
3818                                         func = mono_string_to_utf16;
3819                                         break;
3820                                 case MONO_MARSHAL_CONV_LPWSTR_STR:
3821                                         func = mono_string_from_utf16;
3822                                         break;
3823                                 case MONO_MARSHAL_CONV_LPSTR_STR:
3824                                         func = mono_string_new_wrapper;
3825                                         break;
3826                                 case MONO_MARSHAL_CONV_STR_LPTSTR:
3827                                 case MONO_MARSHAL_CONV_STR_LPSTR:
3828                                         func = mono_string_to_utf8;
3829                                         break;
3830                                 case MONO_MARSHAL_CONV_STR_BSTR:
3831                                         func = mono_string_to_bstr;
3832                                         break;
3833                                 case MONO_MARSHAL_CONV_STR_TBSTR:
3834                                 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
3835                                         func = mono_string_to_ansibstr;
3836                                         break;
3837                                 case MONO_MARSHAL_CONV_SB_LPSTR:
3838                                         func = mono_string_builder_to_utf8;
3839                                         break;
3840                                 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
3841                                         func = mono_array_to_savearray;
3842                                         break;
3843                                 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
3844                                         func = mono_array_to_lparray;
3845                                         break;
3846                                 case MONO_MARSHAL_CONV_DEL_FTN:
3847                                         func = mono_delegate_to_ftnptr;
3848                                         break;
3849                                 case MONO_MARSHAL_CONV_STRARRAY_STRLPARRAY:
3850                                         func = mono_marshal_string_array;
3851                                         break;
3852                                 default:
3853                                         g_warning ("unknown conversion %d\n", ip [2]);
3854                                         g_assert_not_reached ();
3855                                 }
3856
3857                                 temp = mono_emit_jit_icall (cfg, bblock, func, sp, ip);
3858                                 NEW_TEMPLOAD (cfg, *sp, temp);
3859                                 sp++;
3860
3861                                 ip += 3;
3862                                 inline_costs += 10 * num_calls++;
3863                                 break;
3864                         }
3865                         case CEE_MONO_PROC2: {
3866                                 gpointer func = NULL;
3867                                 CHECK_STACK (2);
3868                                 sp -= 2;
3869
3870                                 switch (ip [2]) {
3871                                 case MONO_MARSHAL_CONV_LPSTR_SB:
3872                                         func = mono_string_utf8_to_builder;
3873                                         break;
3874                                 case MONO_MARSHAL_FREE_ARRAY:
3875                                         func = mono_marshal_free_array;
3876                                         break;
3877                                 default:
3878                                         g_assert_not_reached ();
3879                                 }
3880
3881                                 mono_emit_jit_icall (cfg, bblock, func, sp, ip);
3882                                 ip += 3;
3883                                 inline_costs += 10 * num_calls++;
3884                                 break;
3885                         }
3886                         case CEE_MONO_PROC3: {
3887                                 gpointer func = NULL;
3888                                 CHECK_STACK (3);
3889                                 sp -= 3;
3890
3891                                 switch (ip [2]) {
3892                                 case MONO_MARSHAL_CONV_STR_BYVALSTR:
3893                                         func = mono_string_to_byvalstr;
3894                                         break;
3895                                 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
3896                                         func = mono_string_to_byvalwstr;
3897                                         break;
3898                                 default:
3899                                         g_assert_not_reached ();
3900                                 }
3901
3902                                 mono_emit_jit_icall (cfg, bblock, func, sp, ip);
3903                                 ip += 3;
3904                                 inline_costs += 10 * num_calls++;
3905                                 break;
3906                         }
3907                         case CEE_MONO_FREE:
3908                                 CHECK_STACK (1);
3909                                 sp -= 1;
3910                                 mono_emit_jit_icall (cfg, bblock, g_free, sp, ip);
3911                                 ip += 2;
3912                                 inline_costs += 10 * num_calls++;
3913                                 break;
3914                         case CEE_MONO_LDPTR:
3915                                 CHECK_STACK_OVF (1);
3916                                 token = read32 (ip + 2);
3917                                 NEW_PCONST (cfg, ins, mono_method_get_wrapper_data (method, token));
3918                                 ins->cil_code = ip;
3919                                 *sp++ = ins;
3920                                 ip += 6;
3921                                 inline_costs += 10 * num_calls++;
3922                                 break;
3923                         case CEE_MONO_VTADDR:
3924                                 CHECK_STACK (1);
3925                                 --sp;
3926                                 MONO_INST_NEW (cfg, ins, OP_VTADDR);
3927                                 ins->cil_code = ip;
3928                                 ins->type = STACK_MP;
3929                                 ins->inst_left = *sp;
3930                                 *sp++ = ins;
3931                                 ip += 2;
3932                                 break;
3933                         case CEE_MONO_NEWOBJ: {
3934                                 MonoInst *iargs [2];
3935                                 int temp;
3936                                 CHECK_STACK_OVF (1);
3937                                 token = read32 (ip + 2);
3938                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3939                                 mono_class_init (klass);
3940                                 NEW_DOMAINCONST (cfg, iargs [0]);
3941                                 NEW_CLASSCONST (cfg, iargs [1], klass);
3942                                 temp = mono_emit_jit_icall (cfg, bblock, mono_object_new, iargs, ip);
3943                                 NEW_TEMPLOAD (cfg, *sp, temp);
3944                                 sp++;
3945                                 ip += 6;
3946                                 inline_costs += 10 * num_calls++;
3947                                 break;
3948                         }
3949                         case CEE_MONO_OBJADDR:
3950                                 CHECK_STACK (1);
3951                                 --sp;
3952                                 MONO_INST_NEW (cfg, ins, OP_OBJADDR);
3953                                 ins->cil_code = ip;
3954                                 ins->type = STACK_MP;
3955                                 ins->inst_left = *sp;
3956                                 *sp++ = ins;
3957                                 ip += 2;
3958                                 break;
3959                         case CEE_MONO_LDNATIVEOBJ:
3960                                 CHECK_STACK (1);
3961                                 token = read32 (ip + 2);
3962                                 klass = mono_method_get_wrapper_data (method, token);
3963                                 g_assert (klass->valuetype);
3964                                 mono_class_init (klass);
3965                                 NEW_INDLOAD (cfg, ins, sp [-1], &klass->byval_arg);
3966                                 sp [-1] = ins;
3967                                 ip += 6;
3968                                 break;
3969                         case CEE_MONO_RETOBJ:
3970                                 g_assert (cfg->ret);
3971                                 g_assert (method->signature->pinvoke);
3972                                 CHECK_STACK (1);
3973                                 --sp;
3974
3975                                 token = read32 (ip + 2);
3976                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3977
3978                                 NEW_RETLOADA (cfg, ins);
3979                                 handle_stobj (cfg, bblock, ins, *sp, ip, klass, FALSE, TRUE);
3980
3981                                 if (sp != stack_start)
3982                                         goto unverified;
3983
3984                                 MONO_INST_NEW (cfg, ins, CEE_BR);
3985                                 ins->cil_code = ip;
3986                                 ins->inst_target_bb = end_bblock;
3987                                 MONO_ADD_INS (bblock, ins);
3988                                 link_bblock (cfg, bblock, end_bblock);
3989                                 start_new_bblock = 1;
3990                                 ip += 6;
3991                                 break;
3992                         default:
3993                                 g_error ("opcode 0x%02x 0x%02x not handled", MONO_CUSTOM_PREFIX, ip [1]);
3994                                 break;
3995                         }
3996                         break;
3997                 }
3998                 case CEE_PREFIX1: {
3999                         switch (ip [1]) {
4000                         case CEE_ARGLIST:
4001                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
4002                                 break;
4003                         case CEE_CEQ:
4004                         case CEE_CGT:
4005                         case CEE_CGT_UN:
4006                         case CEE_CLT:
4007                         case CEE_CLT_UN: {
4008                                 MonoInst *cmp;
4009                                 CHECK_STACK (2);
4010                                 MONO_INST_NEW (cfg, cmp, 256 + ip [1]);
4011                                 MONO_INST_NEW (cfg, ins, cmp->opcode);
4012                                 sp -= 2;
4013                                 cmp->inst_i0 = sp [0];
4014                                 cmp->inst_i1 = sp [1];
4015                                 cmp->cil_code = ip;
4016                                 type_from_op (cmp);
4017                                 CHECK_TYPE (cmp);
4018                                 cmp->opcode = OP_COMPARE;
4019                                 ins->cil_code = ip;
4020                                 ins->type = STACK_I4;
4021                                 ins->inst_i0 = cmp;
4022                                 *sp++ = ins;
4023                                 ip += 2;
4024                                 break;
4025                         }
4026                         case CEE_LDFTN: {
4027                                 MonoInst *argconst;
4028                                 int temp;
4029
4030                                 CHECK_STACK_OVF (1);
4031                                 n = read32 (ip + 2);
4032                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
4033                                         cmethod = mono_method_get_wrapper_data (method, n);
4034                                 else {
4035                                         cmethod = mono_get_method (image, n, NULL);
4036
4037                                         /*
4038                                          * We can't do this in mono_ldftn, since it is used in
4039                                          * the synchronized wrapper, leading to an infinite loop.
4040                                          */
4041                                         if (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
4042                                                 cmethod = mono_marshal_get_synchronized_wrapper (cmethod);
4043                                 }
4044
4045                                 mono_class_init (cmethod->klass);
4046                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4047
4048                                 NEW_METHODCONST (cfg, argconst, cmethod);
4049                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldftn, &argconst, ip);
4050                                 NEW_TEMPLOAD (cfg, *sp, temp);
4051                                 sp ++;
4052
4053                                 ip += 6;
4054                                 inline_costs += 10 * num_calls++;
4055                                 break;
4056                         }
4057                         case CEE_LDVIRTFTN: {
4058                                 MonoInst *args [2];
4059                                 int temp;
4060
4061                                 CHECK_STACK (1);
4062                                 n = read32 (ip + 2);
4063                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
4064                                         cmethod = mono_method_get_wrapper_data (method, n);
4065                                 else
4066                                         cmethod = mono_get_method (image, n, NULL);
4067
4068                                 mono_class_init (cmethod->klass);
4069                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4070
4071                                 --sp;
4072                                 args [0] = *sp;
4073                                 NEW_METHODCONST (cfg, args [1], cmethod);
4074                                 temp = mono_emit_jit_icall (cfg, bblock, mono_ldvirtfn, args, ip);
4075                                 NEW_TEMPLOAD (cfg, *sp, temp);
4076                                 sp ++;
4077
4078                                 ip += 6;
4079                                 inline_costs += 10 * num_calls++;
4080                                 break;
4081                         }
4082                         case CEE_LDARG:
4083                                 CHECK_STACK_OVF (1);
4084                                 NEW_ARGLOAD (cfg, ins, read16 (ip + 2));
4085                                 ins->cil_code = ip;
4086                                 *sp++ = ins;
4087                                 ip += 4;
4088                                 break;
4089                         case CEE_LDARGA:
4090                                 CHECK_STACK_OVF (1);
4091                                 NEW_ARGLOADA (cfg, ins, read16 (ip + 2));
4092                                 ins->cil_code = ip;
4093                                 *sp++ = ins;
4094                                 ip += 4;
4095                                 break;
4096                         case CEE_STARG:
4097                                 CHECK_STACK (1);
4098                                 --sp;
4099                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4100                                 n = read16 (ip + 2);
4101                                 NEW_ARGSTORE (cfg, ins, n, *sp);
4102                                 ins->cil_code = ip;
4103                                 if (ins->opcode == CEE_STOBJ) {
4104                                         NEW_ARGLOADA (cfg, ins, n);
4105                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
4106                                 } else
4107                                         MONO_ADD_INS (bblock, ins);
4108                                 ip += 4;
4109                                 break;
4110                         case CEE_LDLOC:
4111                                 CHECK_STACK_OVF (1);
4112                                 NEW_LOCLOAD (cfg, ins, read16 (ip + 2));
4113                                 ins->cil_code = ip;
4114                                 *sp++ = ins;
4115                                 ip += 4;
4116                                 break;
4117                         case CEE_LDLOCA:
4118                                 CHECK_STACK_OVF (1);
4119                                 NEW_LOCLOADA (cfg, ins, read16 (ip + 2));
4120                                 ins->cil_code = ip;
4121                                 *sp++ = ins;
4122                                 ip += 4;
4123                                 break;
4124                         case CEE_STLOC:
4125                                 CHECK_STACK (1);
4126                                 --sp;
4127                                 n = read16 (ip + 2);
4128                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4129                                 NEW_LOCSTORE (cfg, ins, n, *sp);
4130                                 ins->cil_code = ip;
4131                                 if (ins->opcode == CEE_STOBJ) {
4132                                         NEW_LOCLOADA (cfg, ins, n);
4133                                         handle_stobj (cfg, bblock, ins, *sp, ip, ins->klass, FALSE, FALSE);
4134                                 } else
4135                                         MONO_ADD_INS (bblock, ins);
4136                                 ip += 4;
4137                                 inline_costs += 1;
4138                                 break;
4139                         case CEE_LOCALLOC:
4140                                 CHECK_STACK (1);
4141                                 --sp;
4142                                 if (sp != stack_start)
4143                                         goto unverified;
4144                                 MONO_INST_NEW (cfg, ins, 256 + ip [1]);
4145                                 ins->inst_left = *sp;
4146                                 ins->cil_code = ip;
4147
4148                                 if (header->init_locals)
4149                                         ins->flags |= MONO_INST_INIT;
4150
4151                                 *sp++ = ins;
4152                                 ip += 2;
4153                                 /* FIXME: set init flag if locals init is set in this method */
4154                                 break;
4155                         case CEE_ENDFILTER: {
4156                                 MonoExceptionClause *clause, *nearest;
4157                                 int cc, nearest_num;
4158
4159                                 CHECK_STACK (1);
4160                                 --sp;
4161                                 if ((sp != stack_start) || (sp [0]->type != STACK_I4))
4162                                         goto unverified;
4163                                 MONO_INST_NEW (cfg, ins, OP_ENDFILTER);
4164                                 ins->inst_left = *sp;
4165                                 ins->cil_code = ip;
4166                                 MONO_ADD_INS (bblock, ins);
4167                                 start_new_bblock = 1;
4168                                 ip += 2;
4169
4170                                 nearest = NULL;
4171                                 for (cc = 0; cc < header->num_clauses; ++cc) {
4172                                         clause = &header->clauses [cc];
4173                                         if ((clause->flags & MONO_EXCEPTION_CLAUSE_FILTER) &&
4174                                             (!nearest || (clause->token_or_filter > nearest->token_or_filter))) {
4175                                                 nearest = clause;
4176                                                 nearest_num = cc;
4177                                         }
4178                                 }
4179                                 g_assert (nearest);
4180                                 filter_lengths [nearest_num] = (ip - header->code) -  nearest->token_or_filter;
4181
4182                                 break;
4183                         }
4184                         case CEE_UNALIGNED_:
4185                                 ins_flag |= MONO_INST_UNALIGNED;
4186                                 ip += 3;
4187                                 break;
4188                         case CEE_VOLATILE_:
4189                                 ins_flag |= MONO_INST_VOLATILE;
4190                                 ip += 2;
4191                                 break;
4192                         case CEE_TAIL_:
4193                                 ins_flag |= MONO_INST_TAILCALL;
4194                                 ip += 2;
4195                                 break;
4196                         case CEE_INITOBJ:
4197                                 CHECK_STACK (1);
4198                                 --sp;
4199                                 token = read32 (ip + 2);
4200                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
4201                                         klass = mono_method_get_wrapper_data (method, token);
4202                                 else
4203                                         klass = mono_class_get (image, token);
4204                                 handle_initobj (cfg, bblock, *sp, NULL, klass, stack_start, sp);
4205                                 ip += 6;
4206                                 inline_costs += 1;
4207                                 break;
4208                         case CEE_CPBLK:
4209                         case CEE_INITBLK: {
4210                                 MonoInst *iargs [3];
4211                                 CHECK_STACK (3);
4212                                 sp -= 3;
4213                                 iargs [0] = sp [0];
4214                                 iargs [1] = sp [1];
4215                                 iargs [2] = sp [2];
4216                                 handle_loaded_temps (cfg, bblock, stack_start, sp);
4217                                 if (ip [1] == CEE_CPBLK) {
4218                                         mono_emit_jit_icall (cfg, bblock, helper_memcpy, iargs, ip);
4219                                 } else {
4220                                         mono_emit_jit_icall (cfg, bblock, helper_memset, iargs, ip);
4221                                 }
4222                                 ip += 2;
4223                                 inline_costs += 1;
4224                                 break;
4225                         }
4226                         case CEE_RETHROW: {
4227                                 MonoInst *load;
4228                                 /* FIXME: check we are in a catch handler */
4229                                 NEW_TEMPLOAD (cfg, load, cfg->exvar->inst_c0);
4230                                 load->cil_code = ip;
4231                                 MONO_INST_NEW (cfg, ins, CEE_THROW);
4232                                 ins->inst_left = load;
4233                                 ins->cil_code = ip;
4234                                 MONO_ADD_INS (bblock, ins);
4235                                 sp = stack_start;
4236                                 start_new_bblock = 1;
4237                                 ip += 2;
4238                                 break;
4239                         }
4240                         case CEE_SIZEOF:
4241                                 CHECK_STACK_OVF (1);
4242                                 token = read32 (ip + 2);
4243                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
4244                                         MonoType *type = mono_type_create_from_typespec (image, token);
4245                                         token = mono_type_size (type, &align);
4246                                         mono_metadata_free_type (type);
4247                                 } else {
4248                                         MonoClass *szclass = mono_class_get (image, token);
4249                                         mono_class_init (szclass);
4250                                         token = mono_class_value_size (szclass, &align);
4251                                 }
4252                                 NEW_ICONST (cfg, ins, token);
4253                                 ins->cil_code = ip;
4254                                 *sp++= ins;
4255                                 ip += 6;
4256                                 break;
4257                         case CEE_REFANYTYPE:
4258                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
4259                                 break;
4260                         default:
4261                                 g_error ("opcode 0xfe 0x%02x not handled", ip [1]);
4262                         }
4263                         break;
4264                 }
4265                 default:
4266                         g_error ("opcode 0x%02x not handled", *ip);
4267                 }
4268         }
4269         if (start_new_bblock != 1)
4270                 goto unverified;
4271
4272         bblock->cil_length = ip - bblock->cil_code;
4273         bblock->next_bb = end_bblock;
4274         link_bblock (cfg, bblock, end_bblock);
4275
4276         if (cfg->method == method && cfg->domainvar) {
4277                 MonoCallInst *call;
4278                 MonoInst *store;
4279
4280                 MONO_INST_NEW_CALL (cfg, call, CEE_CALL);
4281                 call->signature = helper_sig_domain_get;
4282                 call->inst.type = STACK_PTR;
4283                 call->fptr = mono_domain_get;
4284                 NEW_TEMPSTORE (cfg, store, cfg->domainvar->inst_c0, (MonoInst*)call);
4285
4286                 MONO_ADD_INS (init_localsbb, store);
4287         }
4288
4289         if (header->init_locals) {
4290                 MonoInst *store;
4291                 for (i = 0; i < header->num_locals; ++i) {
4292                         int t = header->locals [i]->type;
4293                         if (t == MONO_TYPE_VALUETYPE && header->locals [i]->data.klass->enumtype)
4294                                 t = header->locals [i]->data.klass->enum_basetype->type;
4295                         /* FIXME: use initobj for valuetypes, handle pointers, long, float. */
4296                         if (t >= MONO_TYPE_BOOLEAN && t <= MONO_TYPE_U4) {
4297                                 NEW_ICONST (cfg, ins, 0);
4298                                 NEW_LOCSTORE (cfg, store, i, ins);
4299                                 MONO_ADD_INS (init_localsbb, store);
4300                         } else if (t == MONO_TYPE_I8 || t == MONO_TYPE_U8) {
4301                                 MONO_INST_NEW (cfg, ins, OP_I8CONST);
4302                                 ins->type = STACK_I8;
4303                                 ins->inst_l = 0;
4304                                 NEW_LOCSTORE (cfg, store, i, ins);
4305                                 MONO_ADD_INS (init_localsbb, store);
4306                         } else if (t == MONO_TYPE_R4 || t == MONO_TYPE_R8) {
4307                                 MONO_INST_NEW (cfg, ins, OP_R8CONST);
4308                                 ins->type = STACK_R8;
4309                                 ins->inst_p0 = (void*)&r8_0;
4310                                 NEW_LOCSTORE (cfg, store, i, ins);
4311                                 MONO_ADD_INS (init_localsbb, store);
4312                         } else if (t == MONO_TYPE_VALUETYPE) {
4313                                 NEW_LOCLOADA (cfg, ins, i);
4314                                 handle_initobj (cfg, init_localsbb, ins, NULL, mono_class_from_mono_type (header->locals [i]), NULL, NULL);
4315                                 break;
4316                         } else {
4317                                 NEW_PCONST (cfg, ins, NULL);
4318                                 NEW_LOCSTORE (cfg, store, i, ins);
4319                                 MONO_ADD_INS (init_localsbb, store);
4320                         }
4321                 }
4322         }
4323
4324
4325         /* resolve backward branches in the middle of an existing basic block */
4326         for (tmp = bb_recheck; tmp; tmp = tmp->next) {
4327                 bblock = tmp->data;
4328                 /*g_print ("need recheck in %s at IL_%04x\n", method->name, bblock->cil_code - header->code);*/
4329                 tblock = find_previous (bbhash, start_bblock, bblock->cil_code);
4330                 if (tblock != start_bblock) {
4331                         int l;
4332                         split_bblock (cfg, tblock, bblock);
4333                         l = bblock->cil_code - header->code;
4334                         bblock->cil_length = tblock->cil_length - l;
4335                         tblock->cil_length = l;
4336                 } else {
4337                         g_print ("recheck failed.\n");
4338                 }
4339         }
4340
4341         /* we compute regions here, because the length of filter clauses is not known in advance.
4342         * It is computed in the CEE_ENDFILTER case in the above switch statement*/
4343         if (cfg->method == method) {
4344                 MonoBasicBlock *bb;
4345                 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
4346                         bb->region = mono_find_block_region (cfg, bb->real_offset, filter_lengths);
4347                         if (cfg->verbose_level > 2)
4348                                 g_print ("REGION BB%d IL_%04x ID_%08X\n", bb->block_num, bb->real_offset, bb->region);
4349                 }
4350         } else {
4351                 g_hash_table_destroy (bbhash);
4352         }
4353
4354         dont_inline = g_list_remove (dont_inline, method);
4355         return inline_costs;
4356
4357  inline_failure:
4358         if (cfg->method != method)
4359                 g_hash_table_destroy (bbhash);
4360         dont_inline = g_list_remove (dont_inline, method);
4361         return -1;
4362
4363  unverified:
4364         if (cfg->method != method)
4365                 g_hash_table_destroy (bbhash);
4366         g_error ("Invalid IL code at IL%04x in %s: %s\n", ip - header->code,
4367                  mono_method_full_name (method, TRUE), mono_disasm_code_one (NULL, method, ip, NULL));
4368         dont_inline = g_list_remove (dont_inline, method);
4369         return -1;
4370 }
4371
4372 void
4373 mono_print_tree (MonoInst *tree) {
4374         int arity;
4375
4376         if (!tree)
4377                 return;
4378
4379         arity = mono_burg_arity [tree->opcode];
4380
4381         printf (" %s%s", arity?"(":"",  mono_inst_name (tree->opcode));
4382
4383         switch (tree->opcode) {
4384         case OP_ICONST:
4385                 printf ("[%d]", tree->inst_c0);
4386                 break;
4387         case OP_I8CONST:
4388                 printf ("[%lld]", tree->inst_l);
4389                 break;
4390         case OP_R8CONST:
4391                 printf ("[%f]", *(double*)tree->inst_p0);
4392                 break;
4393         case OP_R4CONST:
4394                 printf ("[%f]", *(float*)tree->inst_p0);
4395                 break;
4396         case OP_ARG:
4397         case OP_LOCAL:
4398                 printf ("[%d]", tree->inst_c0);
4399                 break;
4400         case OP_REGOFFSET:
4401                 printf ("[0x%x(%s)]", tree->inst_offset, mono_arch_regname (tree->inst_basereg));
4402                 break;
4403         case OP_REGVAR:
4404                 printf ("[%s]", mono_arch_regname (tree->dreg));
4405                 break;
4406         case CEE_NEWARR:
4407                 printf ("[%s]",  tree->inst_newa_class->name);
4408                 mono_print_tree (tree->inst_newa_len);
4409                 break;
4410         case CEE_CALL:
4411         case CEE_CALLVIRT:
4412         case OP_FCALL:
4413         case OP_FCALLVIRT:
4414         case OP_LCALL:
4415         case OP_LCALLVIRT:
4416         case OP_VCALL:
4417         case OP_VCALLVIRT:
4418         case OP_VOIDCALL:
4419         case OP_VOIDCALLVIRT: {
4420                 MonoCallInst *call = (MonoCallInst*)tree;
4421                 if (call->method)
4422                         printf ("[%s]", call->method->name);
4423                 break;
4424         }
4425         case OP_PHI: {
4426                 int i;
4427                 printf ("[%d (", tree->inst_c0);
4428                 for (i = 0; i < tree->inst_phi_args [0]; i++) {
4429                         if (i)
4430                                 printf (", ");
4431                         printf ("%d", tree->inst_phi_args [i + 1]);
4432                 }
4433                 printf (")]");
4434                 break;
4435         }
4436         case OP_RENAME:
4437         case OP_RETARG:
4438         case CEE_NOP:
4439         case CEE_JMP:
4440         case CEE_BREAK:
4441                 break;
4442         case CEE_BR:
4443                 printf ("[B%d]", tree->inst_target_bb->block_num);
4444                 break;
4445         case CEE_SWITCH:
4446         case CEE_ISINST:
4447         case CEE_CASTCLASS:
4448         case OP_OUTARG:
4449         case OP_CALL_REG:
4450         case OP_FCALL_REG:
4451         case OP_LCALL_REG:
4452         case OP_VCALL_REG:
4453         case OP_VOIDCALL_REG:
4454                 mono_print_tree (tree->inst_left);
4455                 break;
4456         case CEE_BNE_UN:
4457         case CEE_BEQ:
4458         case CEE_BLT:
4459         case CEE_BLT_UN:
4460         case CEE_BGT:
4461         case CEE_BGT_UN:
4462         case CEE_BGE:
4463         case CEE_BGE_UN:
4464         case CEE_BLE:
4465         case CEE_BLE_UN:
4466                 printf ("[B%dB%d]", tree->inst_true_bb->block_num, tree->inst_false_bb->block_num);
4467                 mono_print_tree (tree->inst_left);
4468                 break;
4469         default:
4470                 if (arity) {
4471                         mono_print_tree (tree->inst_left);
4472                         if (arity > 1)
4473                                 mono_print_tree (tree->inst_right);
4474                 }
4475                 break;
4476         }
4477
4478         if (arity)
4479                 printf (")");
4480 }
4481
4482 static void
4483 create_helper_signature (void)
4484 {
4485         /* FIXME: set call conv */
4486         /* MonoArray * mono_array_new (MonoDomain *domain, MonoClass *klass, gint32 len) */
4487         helper_sig_newarr = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4488         helper_sig_newarr->params [0] = helper_sig_newarr->params [1] = &mono_defaults.int_class->byval_arg;
4489         helper_sig_newarr->ret = &mono_defaults.object_class->byval_arg;
4490         helper_sig_newarr->params [2] = &mono_defaults.int32_class->byval_arg;
4491         helper_sig_newarr->pinvoke = 1;
4492
4493         /* MonoArray * mono_array_new_specific (MonoVTable *vtable, guint32 len) */
4494         helper_sig_newarr_specific = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4495         helper_sig_newarr_specific->params [0] = &mono_defaults.int_class->byval_arg;
4496         helper_sig_newarr_specific->params [1] = &mono_defaults.int32_class->byval_arg;
4497         helper_sig_newarr_specific->ret = &mono_defaults.object_class->byval_arg;
4498         helper_sig_newarr_specific->pinvoke = 1;
4499
4500         /* MonoObject * mono_object_new (MonoDomain *domain, MonoClass *klass) */
4501         helper_sig_object_new = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4502         helper_sig_object_new->params [0] = helper_sig_object_new->params [1] = &mono_defaults.int_class->byval_arg;
4503         helper_sig_object_new->ret = &mono_defaults.object_class->byval_arg;
4504         helper_sig_object_new->pinvoke = 1;
4505
4506         /* MonoObject * mono_object_new_specific (MonoVTable *vtable) */
4507         helper_sig_object_new_specific = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4508         helper_sig_object_new_specific->params [0] = &mono_defaults.int_class->byval_arg;
4509         helper_sig_object_new_specific->ret = &mono_defaults.object_class->byval_arg;
4510         helper_sig_object_new_specific->pinvoke = 1;
4511
4512         /* void* mono_method_compile (MonoMethod*) */
4513         helper_sig_compile = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4514         helper_sig_compile->params [0] = helper_sig_compile->ret = &mono_defaults.int_class->byval_arg;
4515         helper_sig_compile->pinvoke = 1;
4516
4517         /* void* mono_ldvirtfn (MonoObject *, MonoMethod*) */
4518         helper_sig_compile_virt = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4519         helper_sig_compile_virt->params [0] = &mono_defaults.object_class->byval_arg;
4520         helper_sig_compile_virt->params [1] = helper_sig_compile_virt->ret = &mono_defaults.int_class->byval_arg;
4521         helper_sig_compile_virt->pinvoke = 1;
4522
4523         /* MonoString* mono_ldstr (MonoDomain *domain, MonoImage *image, guint32 str_index) */
4524         helper_sig_ldstr = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4525         helper_sig_ldstr->params [0] = helper_sig_ldstr->params [1] = &mono_defaults.int_class->byval_arg;
4526         helper_sig_ldstr->params [2] = &mono_defaults.int32_class->byval_arg;
4527         helper_sig_ldstr->ret = &mono_defaults.object_class->byval_arg;
4528         helper_sig_ldstr->pinvoke = 1;
4529
4530         /* MonoDomain *mono_domain_get (void) */
4531         helper_sig_domain_get = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4532         helper_sig_domain_get->ret = &mono_defaults.int_class->byval_arg;
4533         helper_sig_domain_get->pinvoke = 1;
4534
4535         /* void* stelem_ref (MonoArray *, int index, MonoObject *) */
4536         helper_sig_stelem_ref = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4537         helper_sig_stelem_ref->params [0] = &mono_defaults.array_class->byval_arg;
4538         helper_sig_stelem_ref->params [1] = &mono_defaults.int32_class->byval_arg;
4539         helper_sig_stelem_ref->params [2] = &mono_defaults.object_class->byval_arg;
4540         helper_sig_stelem_ref->ret = &mono_defaults.void_class->byval_arg;
4541         helper_sig_stelem_ref->pinvoke = 1;
4542
4543         /* long amethod (long, long) */
4544         helper_sig_long_long_long = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4545         helper_sig_long_long_long->params [0] = helper_sig_long_long_long->params [1] =
4546                 &mono_defaults.int64_class->byval_arg;
4547         helper_sig_long_long_long->ret = &mono_defaults.int64_class->byval_arg;
4548         helper_sig_long_long_long->pinvoke = 1;
4549
4550         /* object  amethod (intptr) */
4551         helper_sig_obj_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4552         helper_sig_obj_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4553         helper_sig_obj_ptr->ret = &mono_defaults.object_class->byval_arg;
4554         helper_sig_obj_ptr->pinvoke = 1;
4555
4556         /* void amethod (intptr) */
4557         helper_sig_void_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4558         helper_sig_void_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4559         helper_sig_void_ptr->ret = &mono_defaults.void_class->byval_arg;
4560         helper_sig_void_ptr->pinvoke = 1;
4561
4562         /* void amethod (MonoObject *obj) */
4563         helper_sig_void_obj = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4564         helper_sig_void_obj->params [0] = &mono_defaults.object_class->byval_arg;
4565         helper_sig_void_obj->ret = &mono_defaults.void_class->byval_arg;
4566         helper_sig_void_obj->pinvoke = 1;
4567
4568         /* intptr amethod (void) */
4569         helper_sig_ptr_void = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4570         helper_sig_ptr_void->ret = &mono_defaults.int_class->byval_arg;
4571         helper_sig_ptr_void->pinvoke = 1;
4572
4573         /* void  amethod (intptr, intptr) */
4574         helper_sig_void_ptr_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4575         helper_sig_void_ptr_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4576         helper_sig_void_ptr_ptr->params [1] = &mono_defaults.int_class->byval_arg;
4577         helper_sig_void_ptr_ptr->ret = &mono_defaults.void_class->byval_arg;
4578         helper_sig_void_ptr_ptr->pinvoke = 1;
4579
4580         /* void  amethod (intptr, intptr, intptr) */
4581         helper_sig_void_ptr_ptr_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4582         helper_sig_void_ptr_ptr_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4583         helper_sig_void_ptr_ptr_ptr->params [1] = &mono_defaults.int_class->byval_arg;
4584         helper_sig_void_ptr_ptr_ptr->params [2] = &mono_defaults.int_class->byval_arg;
4585         helper_sig_void_ptr_ptr_ptr->ret = &mono_defaults.void_class->byval_arg;
4586         helper_sig_void_ptr_ptr_ptr->pinvoke = 1;
4587
4588         /* intptr  amethod (intptr, intptr) */
4589         helper_sig_ptr_ptr_ptr = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4590         helper_sig_ptr_ptr_ptr->params [0] = &mono_defaults.int_class->byval_arg;
4591         helper_sig_ptr_ptr_ptr->params [1] = &mono_defaults.int_class->byval_arg;
4592         helper_sig_ptr_ptr_ptr->ret = &mono_defaults.int_class->byval_arg;
4593         helper_sig_ptr_ptr_ptr->pinvoke = 1;
4594
4595         /* IntPtr  amethod (object) */
4596         helper_sig_ptr_obj = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4597         helper_sig_ptr_obj->params [0] = &mono_defaults.object_class->byval_arg;
4598         helper_sig_ptr_obj->ret = &mono_defaults.int_class->byval_arg;
4599         helper_sig_ptr_obj->pinvoke = 1;
4600
4601         /* IntPtr  amethod (int) */
4602         helper_sig_ptr_int = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4603         helper_sig_ptr_int->params [0] = &mono_defaults.int32_class->byval_arg;
4604         helper_sig_ptr_int->ret = &mono_defaults.int_class->byval_arg;
4605         helper_sig_ptr_int->pinvoke = 1;
4606
4607         /* long amethod (long, guint32) */
4608         helper_sig_long_long_int = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4609         helper_sig_long_long_int->params [0] = &mono_defaults.int64_class->byval_arg;
4610         helper_sig_long_long_int->params [1] = &mono_defaults.int32_class->byval_arg;
4611         helper_sig_long_long_int->ret = &mono_defaults.int64_class->byval_arg;
4612         helper_sig_long_long_int->pinvoke = 1;
4613
4614         /* ulong amethod (double) */
4615         helper_sig_ulong_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4616         helper_sig_ulong_double->params [0] = &mono_defaults.double_class->byval_arg;
4617         helper_sig_ulong_double->ret = &mono_defaults.uint64_class->byval_arg;
4618         helper_sig_ulong_double->pinvoke = 1;
4619
4620         /* long amethod (double) */
4621         helper_sig_long_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4622         helper_sig_long_double->params [0] = &mono_defaults.double_class->byval_arg;
4623         helper_sig_long_double->ret = &mono_defaults.int64_class->byval_arg;
4624         helper_sig_long_double->pinvoke = 1;
4625
4626         /* uint amethod (double) */
4627         helper_sig_uint_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4628         helper_sig_uint_double->params [0] = &mono_defaults.double_class->byval_arg;
4629         helper_sig_uint_double->ret = &mono_defaults.uint32_class->byval_arg;
4630         helper_sig_uint_double->pinvoke = 1;
4631
4632         /* int amethod (double) */
4633         helper_sig_int_double = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
4634         helper_sig_int_double->params [0] = &mono_defaults.double_class->byval_arg;
4635         helper_sig_int_double->ret = &mono_defaults.int32_class->byval_arg;
4636         helper_sig_int_double->pinvoke = 1;
4637
4638         /* void  initobj (intptr, int size) */
4639         helper_sig_initobj = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
4640         helper_sig_initobj->params [0] = &mono_defaults.int_class->byval_arg;
4641         helper_sig_initobj->params [1] = &mono_defaults.int32_class->byval_arg;
4642         helper_sig_initobj->ret = &mono_defaults.void_class->byval_arg;
4643         helper_sig_initobj->pinvoke = 1;
4644
4645         /* void  memcpy (intptr, intptr, int size) */
4646         helper_sig_memcpy = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4647         helper_sig_memcpy->params [0] = &mono_defaults.int_class->byval_arg;
4648         helper_sig_memcpy->params [1] = &mono_defaults.int_class->byval_arg;
4649         helper_sig_memcpy->params [2] = &mono_defaults.int32_class->byval_arg;
4650         helper_sig_memcpy->ret = &mono_defaults.void_class->byval_arg;
4651         helper_sig_memcpy->pinvoke = 1;
4652
4653         /* void  memset (intptr, int val, int size) */
4654         helper_sig_memset = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4655         helper_sig_memset->params [0] = &mono_defaults.int_class->byval_arg;
4656         helper_sig_memset->params [1] = &mono_defaults.int32_class->byval_arg;
4657         helper_sig_memset->params [2] = &mono_defaults.int32_class->byval_arg;
4658         helper_sig_memset->ret = &mono_defaults.void_class->byval_arg;
4659         helper_sig_memset->pinvoke = 1;
4660 }
4661
4662 static GHashTable *jit_icall_hash_name = NULL;
4663 static GHashTable *jit_icall_hash_addr = NULL;
4664
4665 MonoJitICallInfo *
4666 mono_find_jit_icall_by_name (const char *name)
4667 {
4668         g_assert (jit_icall_hash_name);
4669
4670         //printf ("lookup addr %s %p\n", name, g_hash_table_lookup (jit_icall_hash_name, name));
4671         return g_hash_table_lookup (jit_icall_hash_name, name);
4672 }
4673
4674 MonoJitICallInfo *
4675 mono_find_jit_icall_by_addr (gconstpointer addr)
4676 {
4677         g_assert (jit_icall_hash_addr);
4678
4679         return g_hash_table_lookup (jit_icall_hash_addr, (gpointer)addr);
4680 }
4681
4682 MonoJitICallInfo *
4683 mono_register_jit_icall (gconstpointer func, const char *name, MonoMethodSignature *sig, gboolean is_save)
4684 {
4685         MonoJitICallInfo *info;
4686         MonoMethod *wrapper;
4687         char *n;
4688
4689         g_assert (func);
4690         g_assert (name);
4691
4692         if (!jit_icall_hash_name) {
4693                 jit_icall_hash_name = g_hash_table_new (g_str_hash, g_str_equal);
4694                 jit_icall_hash_addr = g_hash_table_new (NULL, NULL);
4695         }
4696
4697         if (g_hash_table_lookup (jit_icall_hash_name, name)) {
4698                 g_warning ("jit icall already defined \"%s\"\n", name);
4699                 g_assert_not_reached ();
4700         }
4701
4702         info = g_new (MonoJitICallInfo, 1);
4703
4704         info->name = g_strdup (name);
4705         info->func = func;
4706         info->sig = sig;
4707
4708         if (is_save
4709 #ifdef MONO_USE_EXC_TABLES
4710             || mono_arch_has_unwind_info (func)
4711 #endif
4712             ) {
4713                 info->wrapper = func;
4714         } else {
4715                 g_assert (sig);
4716                 n = g_strdup_printf ("__icall_wrapper_%s", name);
4717                 wrapper = mono_marshal_get_icall_wrapper (sig, n, func);
4718                 info->wrapper = mono_jit_compile_method (wrapper);
4719                 g_free (n);
4720         }
4721
4722         g_hash_table_insert (jit_icall_hash_name, info->name, info);
4723         g_hash_table_insert (jit_icall_hash_addr, (gpointer)func, info);
4724         if (func != info->wrapper)
4725                 g_hash_table_insert (jit_icall_hash_addr, (gpointer)info->wrapper, info);
4726
4727         return info;
4728 }
4729
4730 static GHashTable *emul_opcode_hash = NULL;
4731
4732 static MonoJitICallInfo *
4733 mono_find_jit_opcode_emulation (int opcode)
4734 {
4735         if  (emul_opcode_hash)
4736                 return g_hash_table_lookup (emul_opcode_hash, (gpointer)opcode);
4737         else
4738                 return NULL;
4739 }
4740
4741 void
4742 mono_register_opcode_emulation (int opcode, MonoMethodSignature *sig, gpointer func)
4743 {
4744         MonoJitICallInfo *info;
4745         char *name;
4746
4747         if (!emul_opcode_hash)
4748                 emul_opcode_hash = g_hash_table_new (NULL, NULL);
4749
4750         g_assert (!sig->hasthis);
4751         g_assert (sig->param_count < 3);
4752
4753         name = g_strdup_printf ("__emulate_%s",  mono_inst_name (opcode));
4754
4755         info = mono_register_jit_icall (func, name, sig, FALSE);
4756
4757         g_free (name);
4758
4759         g_hash_table_insert (emul_opcode_hash, (gpointer)opcode, info);
4760 }
4761
4762 static void
4763 decompose_foreach (MonoInst *tree, gpointer data)
4764 {
4765         static MonoJitICallInfo *newarr_info = NULL;
4766         static MonoJitICallInfo *newarr_specific_info = NULL;
4767         MonoJitICallInfo *info;
4768
4769         switch (tree->opcode) {
4770         case CEE_NEWARR: {
4771                 MonoCompile *cfg = data;
4772                 MonoInst *iargs [3];
4773
4774                 if (!newarr_info) {
4775                         newarr_info = mono_find_jit_icall_by_addr (mono_array_new);
4776                         g_assert (newarr_info);
4777                         newarr_specific_info = mono_find_jit_icall_by_addr (mono_array_new_specific);
4778                         g_assert (newarr_specific_info);
4779                 }
4780
4781                 if ((cfg->opt & MONO_OPT_SHARED) || mono_compile_aot) {
4782                         NEW_DOMAINCONST (cfg, iargs [0]);
4783                         NEW_CLASSCONST (cfg, iargs [1], tree->inst_newa_class);
4784                         iargs [2] = tree->inst_newa_len;
4785
4786                         info = newarr_info;
4787                 }
4788                 else {
4789                         MonoVTable *vtable = mono_class_vtable (cfg->domain,
4790                                                                                                         mono_array_class_get (&tree->inst_newa_class->byval_arg, 1));
4791
4792                         NEW_PCONST (cfg, iargs [0], vtable);
4793                         iargs [1] = tree->inst_newa_len;
4794
4795                         info = newarr_specific_info;
4796                 }
4797
4798                 mono_emulate_opcode (cfg, tree, iargs, info);
4799                 break;
4800         }
4801
4802         default:
4803                 break;
4804         }
4805 }
4806
4807 void
4808 mono_inst_foreach (MonoInst *tree, MonoInstFunc func, gpointer data) {
4809
4810         switch (mono_burg_arity [tree->opcode]) {
4811         case 0: break;
4812         case 1:
4813                 mono_inst_foreach (tree->inst_left, func, data);
4814                 break;
4815         case 2:
4816                 mono_inst_foreach (tree->inst_left, func, data);
4817                 mono_inst_foreach (tree->inst_right, func, data);
4818                 break;
4819         default:
4820                 g_assert_not_reached ();
4821         }
4822         func (tree, data);
4823 }
4824
4825 #if 0
4826 static void
4827 mono_print_bb_code (MonoBasicBlock *bb) {
4828         if (bb->code) {
4829                 MonoInst *c = bb->code;
4830                 while (c) {
4831                         mono_print_tree (c);
4832                         g_print ("\n");
4833                         c = c->next;
4834                 }
4835         }
4836 }
4837 #endif
4838
4839 static void
4840 print_dfn (MonoCompile *cfg) {
4841         int i, j;
4842         char *code;
4843         MonoBasicBlock *bb;
4844
4845         g_print ("IR code for method %s\n", mono_method_full_name (cfg->method, TRUE));
4846
4847         for (i = 0; i < cfg->num_bblocks; ++i) {
4848                 bb = cfg->bblocks [i];
4849                 if (bb->cil_code) {
4850                         char* code1, *code2;
4851                         code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
4852                         if (bb->last_ins->cil_code)
4853                                 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
4854                         else
4855                                 code2 = g_strdup ("");
4856
4857                         code1 [strlen (code1) - 1] = 0;
4858                         code = g_strdup_printf ("%s -> %s", code1, code2);
4859                         g_free (code1);
4860                         g_free (code2);
4861                 } else
4862                         code = g_strdup ("\n");
4863                 g_print ("\nBB%d DFN%d (len: %d): %s", bb->block_num, i, bb->cil_length, code);
4864                 if (bb->code) {
4865                         MonoInst *c = bb->code;
4866                         while (c) {
4867                                 mono_print_tree (c);
4868                                 g_print ("\n");
4869                                 c = c->next;
4870                         }
4871                 } else {
4872
4873                 }
4874
4875                 g_print ("\tprev:");
4876                 for (j = 0; j < bb->in_count; ++j) {
4877                         g_print (" BB%d", bb->in_bb [j]->block_num);
4878                 }
4879                 g_print ("\t\tsucc:");
4880                 for (j = 0; j < bb->out_count; ++j) {
4881                         g_print (" BB%d", bb->out_bb [j]->block_num);
4882                 }
4883                 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
4884
4885                 if (bb->idom)
4886                         g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
4887
4888                 if (bb->dominators)
4889                         mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
4890                 if (bb->dfrontier)
4891                         mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
4892                 g_free (code);
4893         }
4894
4895         g_print ("\n");
4896 }
4897
4898 /*
4899  * returns the offset used by spillvar. It allocates a new
4900  * spill variable if necessary.
4901  */
4902 int
4903 mono_spillvar_offset (MonoCompile *cfg, int spillvar)
4904 {
4905         MonoSpillInfo **si, *info;
4906         int i = 0;
4907
4908         si = &cfg->spill_info;
4909
4910         while (i <= spillvar) {
4911
4912                 if (!*si) {
4913                         *si = info = mono_mempool_alloc (cfg->mempool, sizeof (MonoSpillInfo));
4914                         info->next = NULL;
4915                         cfg->stack_offset -= sizeof (gpointer);
4916                         info->offset = cfg->stack_offset;
4917                 }
4918
4919                 if (i == spillvar)
4920                         return (*si)->offset;
4921
4922                 i++;
4923                 si = &(*si)->next;
4924         }
4925
4926         g_assert_not_reached ();
4927         return 0;
4928 }
4929
4930 void
4931 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
4932 {
4933         inst->next = NULL;
4934         if (bb->last_ins) {
4935                 g_assert (bb->code);
4936                 bb->last_ins->next = inst;
4937                 bb->last_ins = inst;
4938         } else {
4939                 bb->last_ins = bb->code = inst;
4940         }
4941 }
4942
4943 void
4944 mono_destroy_compile (MonoCompile *cfg)
4945 {
4946         //mono_mempool_stats (cfg->mempool);
4947         g_hash_table_destroy (cfg->bb_hash);
4948         if (cfg->rs)
4949                 mono_regstate_free (cfg->rs);
4950         mono_mempool_destroy (cfg->mempool);
4951         g_list_free (cfg->ldstr_list);
4952
4953         g_free (cfg->varinfo);
4954         g_free (cfg->vars);
4955         g_free (cfg);
4956 }
4957
4958 gpointer
4959 mono_get_lmf_addr (void)
4960 {
4961         MonoJitTlsData *jit_tls;
4962
4963         if ((jit_tls = TlsGetValue (mono_jit_tls_id)))
4964                 return &jit_tls->lmf;
4965
4966         g_assert_not_reached ();
4967         return NULL;
4968 }
4969
4970 /**
4971  * mono_thread_abort:
4972  * @obj: exception object
4973  *
4974  * abort the thread, print exception information and stack trace
4975  */
4976 static void
4977 mono_thread_abort (MonoObject *obj)
4978 {
4979         MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
4980
4981         g_free (jit_tls);
4982
4983         ExitThread (-1);
4984 }
4985
4986 static void
4987 mono_thread_start_cb (guint32 tid, gpointer stack_start, gpointer func)
4988 {
4989         MonoJitTlsData *jit_tls;
4990         MonoLMF *lmf;
4991
4992         jit_tls = g_new0 (MonoJitTlsData, 1);
4993
4994         TlsSetValue (mono_jit_tls_id, jit_tls);
4995
4996         jit_tls->abort_func = mono_thread_abort;
4997         jit_tls->end_of_stack = stack_start;
4998
4999         lmf = g_new0 (MonoLMF, 1);
5000         lmf->ebp = -1;
5001
5002         jit_tls->lmf = lmf;
5003 }
5004
5005 void (*mono_thread_attach_aborted_cb ) (MonoObject *obj) = NULL;
5006
5007 static void
5008 mono_thread_abort_dummy (MonoObject *obj)
5009 {
5010   if (mono_thread_attach_aborted_cb)
5011     mono_thread_attach_aborted_cb (obj);
5012   else
5013     mono_thread_abort (obj);
5014 }
5015
5016 static void
5017 mono_thread_attach_cb (guint32 tid, gpointer stack_start)
5018 {
5019         MonoJitTlsData *jit_tls;
5020         MonoLMF *lmf;
5021
5022         jit_tls = g_new0 (MonoJitTlsData, 1);
5023
5024         TlsSetValue (mono_jit_tls_id, jit_tls);
5025
5026         jit_tls->abort_func = mono_thread_abort_dummy;
5027         jit_tls->end_of_stack = stack_start;
5028
5029         lmf = g_new0 (MonoLMF, 1);
5030         lmf->ebp = -1;
5031
5032         jit_tls->lmf = lmf;
5033 }
5034
5035 void
5036 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
5037 {
5038         MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
5039
5040         ji->ip.i = ip;
5041         ji->type = type;
5042         ji->data.target = target;
5043         ji->next = cfg->patch_info;
5044
5045         cfg->patch_info = ji;
5046 }
5047
5048 void
5049 mono_remove_patch_info (MonoCompile *cfg, int ip)
5050 {
5051         MonoJumpInfo **ji = &cfg->patch_info;
5052
5053         while (*ji) {
5054                 if ((*ji)->ip.i == ip)
5055                         *ji = (*ji)->next;
5056                 else
5057                         ji = &((*ji)->next);
5058         }
5059 }
5060
5061 static void
5062 dec_foreach (MonoInst *tree, MonoCompile *cfg) {
5063         MonoJitICallInfo *info;
5064
5065         switch (mono_burg_arity [tree->opcode]) {
5066         case 0: break;
5067         case 1:
5068                 dec_foreach (tree->inst_left, cfg);
5069
5070                 if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
5071                         MonoInst *iargs [2];
5072
5073                         iargs [0] = tree->inst_left;
5074
5075                         mono_emulate_opcode (cfg, tree, iargs, info);
5076                         return;
5077                 }
5078
5079                 break;
5080         case 2:
5081                 if ((info = mono_find_jit_opcode_emulation (tree->opcode))) {
5082                         MonoInst *iargs [2];
5083
5084                         iargs [0] = tree->inst_i0;
5085                         iargs [1] = tree->inst_i1;
5086
5087                         mono_emulate_opcode (cfg, tree, iargs, info);
5088
5089                         dec_foreach (iargs [0], cfg);
5090                         dec_foreach (iargs [1], cfg);
5091                         return;
5092                 } else {
5093                         dec_foreach (tree->inst_left, cfg);
5094                         dec_foreach (tree->inst_right, cfg);
5095                 }
5096                 break;
5097         default:
5098                 g_assert_not_reached ();
5099         }
5100         decompose_foreach (tree, cfg);
5101 }
5102
5103 static void
5104 decompose_pass (MonoCompile *cfg) {
5105         MonoBasicBlock *bb;
5106
5107         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5108                 MonoInst *tree;
5109                 cfg->cbb = bb;
5110                 cfg->prev_ins = NULL;
5111                 for (tree = cfg->cbb->code; tree; tree = tree->next) {
5112                         dec_foreach (tree, cfg);
5113                         cfg->prev_ins = tree;
5114                 }
5115         }
5116 }
5117
5118 static void
5119 nullify_basic_block (MonoBasicBlock *bb)
5120 {
5121         bb->in_count = 0;
5122         bb->out_count = 0;
5123         bb->in_bb = NULL;
5124         bb->out_bb = NULL;
5125         bb->next_bb = NULL;
5126         bb->code = bb->last_ins = NULL;
5127 }
5128
5129 static void
5130 replace_basic_block (MonoBasicBlock *bb, MonoBasicBlock *orig,  MonoBasicBlock *repl)
5131 {
5132         int i, j;
5133
5134         for (i = 0; i < bb->out_count; i++) {
5135                 MonoBasicBlock *ob = bb->out_bb [i];
5136                 for (j = 0; j < ob->in_count; j++) {
5137                         if (ob->in_bb [j] == orig)
5138                                 ob->in_bb [j] = repl;
5139                 }
5140         }
5141
5142 }
5143
5144 static void
5145 merge_basic_blocks (MonoBasicBlock *bb, MonoBasicBlock *bbn)
5146 {
5147         bb->out_count = bbn->out_count;
5148         bb->out_bb = bbn->out_bb;
5149
5150         replace_basic_block (bb, bbn, bb);
5151
5152         if (bb->last_ins) {
5153                 if (bbn->code) {
5154                         bb->last_ins->next = bbn->code;
5155                         bb->last_ins = bbn->last_ins;
5156                 }
5157         } else {
5158                 bb->code = bbn->code;
5159                 bb->last_ins = bbn->last_ins;
5160         }
5161         bb->next_bb = bbn->next_bb;
5162         nullify_basic_block (bbn);
5163 }
5164
5165 static void
5166 optimize_branches (MonoCompile *cfg) {
5167         int changed = FALSE;
5168         MonoBasicBlock *bb, *bbn;
5169
5170         do {
5171                 changed = FALSE;
5172
5173                 /* we skip the entry block (exit is handled specially instead ) */
5174                 for (bb = cfg->bb_entry->next_bb; bb; bb = bb->next_bb) {
5175
5176                         /* dont touch code inside exception clauses */
5177                         if (bb->region != -1)
5178                                 continue;
5179
5180                         if (bb->out_count == 1) {
5181                                 bbn = bb->out_bb [0];
5182
5183                                 if (bb->region == bbn->region && bb->next_bb == bbn) {
5184                                 /* the block are in sequence anyway ... */
5185
5186                                         /*
5187                                          * miguel: I do not understand what the test below does, could we
5188                                          * use a macro, or a comment here?  opcode > CEE_BEQ && <= BLT_UN
5189                                          *
5190                                          * It could also test for bb->last_in only once, and the value
5191                                          * could be cached (last_ins->opcode)
5192                                          */
5193                                         if (bb->last_ins && (bb->last_ins->opcode == CEE_BR || (
5194                                                 (bb->last_ins && bb->last_ins->opcode >= CEE_BEQ && bb->last_ins->opcode <= CEE_BLT_UN)))) {
5195                                                 bb->last_ins->opcode = CEE_NOP;
5196                                                 changed = TRUE;
5197                                                 if (cfg->verbose_level > 2)
5198                                                         g_print ("br removal triggered %d -> %d\n", bb->block_num, bbn->block_num);
5199                                         }
5200                                         /* fixme: this causes problems with inlining */
5201                                         if (bbn->in_count == 1) {
5202
5203                                                 if (bbn != cfg->bb_exit) {
5204                                                         if (cfg->verbose_level > 2)
5205                                                                 g_print ("block merge triggered %d -> %d\n", bb->block_num, bbn->block_num);
5206                                                         merge_basic_blocks (bb, bbn);
5207                                                         changed = TRUE;
5208                                                 }
5209
5210                                                 //mono_print_bb_code (bb);
5211                                         }
5212                                 } else {
5213                                         if (bb->last_ins && bb->last_ins->opcode == CEE_BR) {
5214                                                 bbn = bb->last_ins->inst_target_bb;
5215                                                 if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR) {
5216                                                         /*
5217                                                         if (cfg->verbose_level > 2)
5218                                                                 g_print ("in %s branch to branch triggered %d -> %d\n", cfg->method->name, bb->block_num, bbn->block_num);
5219                                                         bb->out_bb [0] = bb->last_ins->inst_target_bb = bbn->code->inst_target_bb;
5220                                                         changed = TRUE;*/
5221                                                 }
5222                                         }
5223                                 }
5224                         } else if (bb->out_count == 2) {
5225                                 /* fixme: this does not correctly unlink the blocks, so we get serious problems in idom code */
5226                                 if (0 && bb->last_ins && bb->last_ins->opcode >= CEE_BEQ && bb->last_ins->opcode <= CEE_BLT_UN) {
5227                                         bbn = bb->last_ins->inst_true_bb;
5228                                         if (bb->region == bbn->region && bbn->code && bbn->code->opcode == CEE_BR) {
5229                                                 if (cfg->verbose_level > 2)
5230                                                         g_print ("cbranch to branch triggered %d -> %d (0x%02x)\n", bb->block_num,
5231                                                                  bbn->block_num, bbn->code->opcode);
5232
5233                                                 if (bb->out_bb [0] == bbn) {
5234                                                         bb->out_bb [0] = bbn->code->inst_target_bb;
5235                                                 } else if (bb->out_bb [1] == bbn) {
5236                                                         bb->out_bb [1] = bbn->code->inst_target_bb;
5237                                                 }
5238                                                 bb->last_ins->inst_true_bb = bbn->code->inst_target_bb;
5239                                                 changed = TRUE;
5240                                         }
5241                                 }
5242                         }
5243                 }
5244         } while (changed);
5245 }
5246
5247 static void
5248 mono_compile_create_vars (MonoCompile *cfg)
5249 {
5250         MonoMethodSignature *sig;
5251         MonoMethodHeader *header;
5252         int i;
5253
5254         header = ((MonoMethodNormal *)cfg->method)->header;
5255
5256         sig = cfg->method->signature;
5257
5258         if (!MONO_TYPE_IS_VOID (sig->ret)) {
5259                 cfg->ret = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
5260                 cfg->ret->opcode = OP_RETARG;
5261                 cfg->ret->inst_vtype = sig->ret;
5262                 cfg->ret->klass = mono_class_from_mono_type (sig->ret);
5263         }
5264
5265         if (sig->hasthis)
5266                 mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
5267
5268         for (i = 0; i < sig->param_count; ++i)
5269                 mono_compile_create_var (cfg, sig->params [i], OP_ARG);
5270
5271         cfg->locals_start = cfg->num_varinfo;
5272
5273         for (i = 0; i < header->num_locals; ++i)
5274                 mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
5275 }
5276
5277 #if 0
5278 static void
5279 mono_print_code (MonoCompile *cfg)
5280 {
5281         MonoBasicBlock *bb;
5282
5283         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5284                 MonoInst *tree = bb->code;
5285
5286                 if (!tree)
5287                         continue;
5288
5289                 g_print ("CODE BLOCK %d (nesting %d):\n", bb->block_num, bb->nesting);
5290
5291                 for (; tree; tree = tree->next) {
5292                         mono_print_tree (tree);
5293                         g_print ("\n");
5294                 }
5295
5296                 if (bb->last_ins)
5297                         bb->last_ins->next = NULL;
5298         }
5299 }
5300 #endif
5301
5302 extern const char * const mono_burg_rule_string [];
5303
5304 static void
5305 emit_state (MonoCompile *cfg, MBState *state, int goal)
5306 {
5307         MBState *kids [10];
5308         int ern = mono_burg_rule (state, goal);
5309         const guint16 *nts = mono_burg_nts [ern];
5310         MBEmitFunc emit;
5311
5312         //g_print ("rule: %s\n", mono_burg_rule_string [ern]);
5313         switch (goal) {
5314         case MB_NTERM_reg:
5315                 //if (state->reg2)
5316                 //      state->reg1 = state->reg2; /* chain rule */
5317                 //else
5318                 state->reg1 = mono_regstate_next_int (cfg->rs);
5319                 //g_print ("alloc symbolic R%d (reg2: R%d) in block %d\n", state->reg1, state->reg2, cfg->cbb->block_num);
5320                 break;
5321         case MB_NTERM_lreg:
5322                 state->reg1 = mono_regstate_next_int (cfg->rs);
5323                 state->reg2 = mono_regstate_next_int (cfg->rs);
5324                 break;
5325         case MB_NTERM_freg:
5326                 state->reg1 = mono_regstate_next_float (cfg->rs);
5327                 break;
5328         default:
5329                 /* do nothing */
5330                 break;
5331         }
5332         if (nts [0]) {
5333                 mono_burg_kids (state, ern, kids);
5334
5335                 emit_state (cfg, kids [0], nts [0]);
5336                 if (nts [1]) {
5337                         emit_state (cfg, kids [1], nts [1]);
5338                         if (nts [2]) {
5339                                 g_assert (!nts [3]);
5340                                 emit_state (cfg, kids [2], nts [2]);
5341                         }
5342                 }
5343         }
5344
5345 //      g_print ("emit: %s (%p)\n", mono_burg_rule_string [ern], state);
5346         if ((emit = mono_burg_func [ern]))
5347                 emit (state, state->tree, cfg);
5348 }
5349
5350 #define DEBUG_SELECTION
5351
5352 static void
5353 mini_select_instructions (MonoCompile *cfg)
5354 {
5355         MonoBasicBlock *bb;
5356
5357         cfg->state_pool = mono_mempool_new ();
5358         cfg->rs = mono_regstate_new ();
5359
5360 #ifdef DEBUG_SELECTION
5361         if (cfg->verbose_level >= 4) {
5362         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5363                 MonoInst *tree = bb->code;
5364                 g_print ("DUMP BLOCK %d:\n", bb->block_num);
5365                 if (!tree)
5366                         continue;
5367                 for (; tree; tree = tree->next) {
5368                         mono_print_tree (tree);
5369                         g_print ("\n");
5370                 }
5371         }
5372         }
5373 #endif
5374
5375         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5376                 MonoInst *tree = bb->code, *next;
5377                 MBState *mbstate;
5378
5379                 if (!tree)
5380                         continue;
5381                 bb->code = NULL;
5382                 bb->last_ins = NULL;
5383
5384                 cfg->cbb = bb;
5385                 mono_regstate_reset (cfg->rs);
5386
5387 #ifdef DEBUG_SELECTION
5388                 if (cfg->verbose_level >= 3)
5389                         g_print ("LABEL BLOCK %d:\n", bb->block_num);
5390 #endif
5391                 for (; tree; tree = next) {
5392                         next = tree->next;
5393 #ifdef DEBUG_SELECTION
5394                         if (cfg->verbose_level >= 3) {
5395                                 mono_print_tree (tree);
5396                                 g_print ("\n");
5397                         }
5398 #endif
5399
5400                         if (!(mbstate = mono_burg_label (tree, cfg))) {
5401                                 g_warning ("unabled to label tree %p", tree);
5402                                 mono_print_tree (tree);
5403                                 g_print ("\n");
5404                                 g_assert_not_reached ();
5405                         }
5406                         emit_state (cfg, mbstate, MB_NTERM_stmt);
5407                 }
5408                 bb->max_ireg = cfg->rs->next_vireg;
5409                 bb->max_freg = cfg->rs->next_vfreg;
5410
5411                 if (bb->last_ins)
5412                         bb->last_ins->next = NULL;
5413
5414                 mono_mempool_empty (cfg->state_pool);
5415         }
5416         mono_mempool_destroy (cfg->state_pool);
5417 }
5418
5419 void
5420 mono_codegen (MonoCompile *cfg)
5421 {
5422         MonoJumpInfo *patch_info;
5423         MonoBasicBlock *bb;
5424         int i, max_epilog_size;
5425         guint8 *code;
5426
5427         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5428                 cfg->spill_count = 0;
5429                 /* we reuse dfn here */
5430                 /* bb->dfn = bb_count++; */
5431                 mono_arch_local_regalloc (cfg, bb);
5432         }
5433
5434         if (mono_trace_coverage)
5435                 mono_allocate_coverage_info (cfg->method, cfg->num_bblocks);
5436
5437         code = mono_arch_emit_prolog (cfg);
5438
5439         if (mono_jit_profile)
5440                 code = mono_arch_instrument_prolog (cfg, mono_profiler_method_enter, code, FALSE);
5441
5442         cfg->code_len = code - cfg->native_code;
5443         cfg->prolog_end = cfg->code_len;
5444
5445         mono_debug_open_method (cfg);
5446
5447         /* emit code all basic blocks */
5448         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5449                 bb->native_offset = cfg->code_len;
5450                 mono_arch_output_basic_block (cfg, bb);
5451         }
5452         cfg->bb_exit->native_offset = cfg->code_len;
5453
5454         code = cfg->native_code + cfg->code_len;
5455
5456         max_epilog_size = mono_arch_max_epilog_size (cfg);
5457
5458         /* we always allocate code in cfg->domain->code_mp to increase locality */
5459         cfg->code_size = cfg->code_len + max_epilog_size;
5460         /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
5461         code = mono_mempool_alloc (cfg->domain->code_mp, cfg->code_size);
5462         memcpy (code, cfg->native_code, cfg->code_len);
5463         g_free (cfg->native_code);
5464         cfg->native_code = code;
5465         code = cfg->native_code + cfg->code_len;
5466
5467         /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
5468
5469         cfg->epilog_begin = cfg->code_len;
5470
5471         if (mono_jit_profile)
5472                 code = mono_arch_instrument_epilog (cfg, mono_profiler_method_leave, code, FALSE);
5473
5474         cfg->code_len = code - cfg->native_code;
5475
5476         mono_arch_emit_epilog (cfg);
5477
5478         for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
5479                 switch (patch_info->type) {
5480                 case MONO_PATCH_INFO_ABS: {
5481                         MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
5482                         if (info) {
5483                                 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
5484                                 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
5485                                 patch_info->data.name = info->name;
5486                         }
5487                         break;
5488                 }
5489                 case MONO_PATCH_INFO_SWITCH: {
5490                         gpointer *table = g_new (gpointer, patch_info->table_size);
5491                         patch_info->ip.i = patch_info->ip.label->inst_c0;
5492                         for (i = 0; i < patch_info->table_size; i++) {
5493                                 table [i] = (gpointer)patch_info->data.table [i]->native_offset;
5494                         }
5495                         patch_info->data.target = table;
5496                         break;
5497                 }
5498                 default:
5499                         /* do nothing */
5500                         break;
5501                 }
5502         }
5503
5504         if (cfg->verbose_level > 1)
5505                 g_print ("Method %s::%s emmitted at %p to %p\n", cfg->method->klass->name,
5506                          cfg->method->name, cfg->native_code, cfg->native_code + cfg->code_len);
5507
5508         mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info);
5509
5510         mono_debug_close_method (cfg);
5511 }
5512
5513 static void
5514 mono_cprop_copy_values (MonoCompile *cfg, MonoInst *tree, MonoInst **acp)
5515 {
5516         MonoInst *cp;
5517         int arity;
5518
5519         if (tree->ssa_op == MONO_SSA_LOAD && (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG) &&
5520             (cp = acp [tree->inst_i0->inst_c0]) && !tree->inst_i0->flags) {
5521
5522                 if (cp->opcode == OP_ICONST) {
5523                         if (cfg->opt & MONO_OPT_CONSPROP) {
5524                                 //{ static int c = 0; printf ("CCOPY %d %d %s\n", c++, cp->inst_c0, mono_method_full_name (cfg->method, TRUE)); }
5525                                 *tree = *cp;
5526                         }
5527                 } else {
5528                         if (tree->inst_i0->inst_vtype->type == cp->inst_vtype->type) {
5529                                 if (cfg->opt & MONO_OPT_COPYPROP) {
5530                                         //{ static int c = 0; printf ("VCOPY %d\n", ++c); }
5531                                         tree->inst_i0 = cp;
5532                                 }
5533                         }
5534                 }
5535         } else {
5536                 arity = mono_burg_arity [tree->opcode];
5537
5538                 if (arity) {
5539                         mono_cprop_copy_values (cfg, tree->inst_i0, acp);
5540                         if (cfg->opt & MONO_OPT_CFOLD)
5541                                 mono_constant_fold_inst (tree, NULL);
5542                         if (arity > 1) {
5543                                 mono_cprop_copy_values (cfg, tree->inst_i1, acp);
5544                                 if (cfg->opt & MONO_OPT_CFOLD)
5545                                         mono_constant_fold_inst (tree, NULL);
5546                         }
5547                         mono_constant_fold_inst (tree, NULL);
5548                 }
5549         }
5550 }
5551
5552 static void
5553 mono_cprop_invalidate_values (MonoInst *tree, MonoInst **acp, int acp_size)
5554 {
5555         int arity;
5556
5557         switch (tree->opcode) {
5558         case CEE_STIND_I:
5559         case CEE_STIND_I1:
5560         case CEE_STIND_I2:
5561         case CEE_STIND_I4:
5562         case CEE_STIND_REF:
5563         case CEE_STIND_I8:
5564         case CEE_STIND_R4:
5565         case CEE_STIND_R8:
5566         case CEE_STOBJ:
5567                 if (tree->ssa_op == MONO_SSA_NOP) {
5568                         memset (acp, 0, sizeof (MonoInst *) * acp_size);
5569                         return;
5570                 }
5571
5572                 break;
5573         case CEE_CALL:
5574         case OP_CALL_REG:
5575         case CEE_CALLVIRT:
5576         case OP_LCALL_REG:
5577         case OP_LCALLVIRT:
5578         case OP_LCALL:
5579         case OP_FCALL_REG:
5580         case OP_FCALLVIRT:
5581         case OP_FCALL:
5582         case OP_VCALL_REG:
5583         case OP_VCALLVIRT:
5584         case OP_VCALL:
5585         case OP_VOIDCALL_REG:
5586         case OP_VOIDCALLVIRT:
5587         case OP_VOIDCALL: {
5588                 MonoCallInst *call = (MonoCallInst *)tree;
5589                 MonoMethodSignature *sig = call->signature;
5590                 int i, byref = FALSE;
5591
5592                 for (i = 0; i < sig->param_count; i++) {
5593                         if (sig->params [i]->byref) {
5594                                 byref = TRUE;
5595                                 break;
5596                         }
5597                 }
5598
5599                 if (byref)
5600                         memset (acp, 0, sizeof (MonoInst *) * acp_size);
5601
5602                 return;
5603         }
5604         default:
5605                 break;
5606         }
5607
5608         arity = mono_burg_arity [tree->opcode];
5609
5610         switch (arity) {
5611         case 0:
5612                 break;
5613         case 1:
5614                 mono_cprop_invalidate_values (tree->inst_i0, acp, acp_size);
5615                 break;
5616         case 2:
5617                 mono_cprop_invalidate_values (tree->inst_i0, acp, acp_size);
5618                 mono_cprop_invalidate_values (tree->inst_i1, acp, acp_size);
5619                 break;
5620         default:
5621                 g_assert_not_reached ();
5622         }
5623 }
5624
5625 static void
5626 mono_local_cprop_bb (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst **acp, int acp_size)
5627 {
5628         MonoInst *tree = bb->code;
5629         int i;
5630
5631         if (!tree)
5632                 return;
5633
5634         for (; tree; tree = tree->next) {
5635
5636                 mono_cprop_copy_values (cfg, tree, acp);
5637
5638                 mono_cprop_invalidate_values (tree, acp, acp_size);
5639
5640                 if (tree->ssa_op == MONO_SSA_STORE  &&
5641                     (tree->inst_i0->opcode == OP_LOCAL || tree->inst_i0->opcode == OP_ARG)) {
5642                         MonoInst *i1 = tree->inst_i1;
5643
5644                         acp [tree->inst_i0->inst_c0] = NULL;
5645
5646                         for (i = 0; i < acp_size; i++) {
5647                                 if (acp [i] && acp [i]->opcode != OP_ICONST &&
5648                                     acp [i]->inst_c0 == tree->inst_i0->inst_c0) {
5649                                         acp [i] = NULL;
5650                                 }
5651                         }
5652
5653                         if (i1->opcode == OP_ICONST) {
5654                                 acp [tree->inst_i0->inst_c0] = i1;
5655                                 //printf ("DEF1 BB%d %d\n", bb->block_num,tree->inst_i0->inst_c0);
5656                         }
5657                         if (i1->ssa_op == MONO_SSA_LOAD &&
5658                             (i1->inst_i0->opcode == OP_LOCAL || i1->inst_i0->opcode == OP_ARG) &&
5659                             (i1->inst_i0->inst_c0 != tree->inst_i0->inst_c0)) {
5660                                 acp [tree->inst_i0->inst_c0] = i1->inst_i0;
5661                                 //printf ("DEF2 BB%d %d %d\n", bb->block_num,tree->inst_i0->inst_c0,i1->inst_i0->inst_c0);
5662                         }
5663                 }
5664
5665                 /*
5666                   if (tree->opcode == CEE_BEQ) {
5667                   g_assert (tree->inst_i0->opcode == OP_COMPARE);
5668                   if (tree->inst_i0->inst_i0->opcode == OP_ICONST &&
5669                   tree->inst_i0->inst_i1->opcode == OP_ICONST) {
5670
5671                   tree->opcode = CEE_BR;
5672                   if (tree->inst_i0->inst_i0->opcode == tree->inst_i0->inst_i1->opcode) {
5673                   tree->inst_target_bb = tree->inst_true_bb;
5674                   } else {
5675                   tree->inst_target_bb = tree->inst_false_bb;
5676                   }
5677                   }
5678                   }
5679                 */
5680         }
5681 }
5682
5683 static void
5684 mono_local_cprop (MonoCompile *cfg)
5685 {
5686         MonoBasicBlock *bb;
5687         MonoInst **acp;
5688
5689         acp = alloca (sizeof (MonoInst *) * cfg->num_varinfo);
5690
5691         for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
5692                 memset (acp, 0, sizeof (MonoInst *) * cfg->num_varinfo);
5693                 mono_local_cprop_bb (cfg, bb, acp, cfg->num_varinfo);
5694         }
5695 }
5696
5697 MonoCompile*
5698 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, int parts)
5699 {
5700         MonoMethodHeader *header = ((MonoMethodNormal *)method)->header;
5701         guint8 *ip = (guint8 *)header->code;
5702         MonoCompile *cfg;
5703         MonoJitInfo *jinfo;
5704         int dfn = 0, i, code_size_ratio;
5705
5706         mono_jit_stats.methods_compiled++;
5707         if (mono_jit_profile)
5708                 mono_profiler_method_jit (method);
5709
5710         cfg = g_new0 (MonoCompile, 1);
5711         cfg->method = method;
5712         cfg->mempool = mono_mempool_new ();
5713         cfg->opt = opts;
5714         cfg->bb_hash = g_hash_table_new (g_direct_hash, NULL);
5715         cfg->domain = domain;
5716         cfg->verbose_level = mini_verbose;
5717
5718         /*
5719          * create MonoInst* which represents arguments and local variables
5720          */
5721         mono_compile_create_vars (cfg);
5722
5723         if (cfg->verbose_level > 2)
5724                 g_print ("converting method %s\n", mono_method_full_name (method, TRUE));
5725
5726         if ((i = mono_method_to_ir (cfg, method, NULL, NULL, cfg->locals_start, NULL, NULL, NULL, 0, FALSE)) < 0) {
5727                 mono_destroy_compile (cfg);
5728                 if (mono_jit_profile)
5729                         mono_profiler_method_end_jit (method, MONO_PROFILE_FAILED);
5730                 return NULL;
5731         }
5732
5733         mono_jit_stats.basic_blocks += cfg->num_bblocks;
5734         mono_jit_stats.max_basic_blocks = MAX (cfg->num_bblocks, mono_jit_stats.max_basic_blocks);
5735
5736         /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
5737
5738         /* Depth-first ordering on basic blocks */
5739         cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
5740
5741         if (cfg->opt & MONO_OPT_BRANCH)
5742                 optimize_branches (cfg);
5743
5744         df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
5745         if (cfg->num_bblocks != dfn + 1) {
5746                 if (cfg->verbose_level > 1)
5747                         g_print ("unreachable code?\n");
5748                 cfg->num_bblocks = dfn + 1;
5749         }
5750
5751         if (cfg->opt & MONO_OPT_LOOP) {
5752                 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
5753                 mono_compute_natural_loops (cfg);
5754         }
5755
5756
5757         /* after method_to_ir */
5758         if (parts == 1)
5759                 return cfg;
5760
5761 //#define DEBUGSSA "logic_run"
5762 #define DEBUGSSA_CLASS "Tests"
5763 #ifdef DEBUGSSA
5764
5765
5766         if (!header->num_clauses && !cfg->disable_ssa) {
5767                 mono_local_cprop (cfg);
5768                 mono_ssa_compute (cfg);
5769         }
5770 #else
5771
5772         /* fixme: add all optimizations which requires SSA */
5773         if (cfg->opt & (MONO_OPT_DEADCE)) {
5774                 if (!(cfg->comp_done & MONO_COMP_SSA) && !header->num_clauses && !cfg->disable_ssa) {
5775                         mono_local_cprop (cfg);
5776                         mono_ssa_compute (cfg);
5777
5778                         if (cfg->verbose_level >= 2) {
5779                                 print_dfn (cfg);
5780                         }
5781                 }
5782         }
5783 #endif
5784
5785         /* after SSA translation */
5786         if (parts == 2)
5787                 return cfg;
5788
5789         if ((cfg->opt & MONO_OPT_CONSPROP) ||  (cfg->opt & MONO_OPT_COPYPROP)) {
5790                 if (cfg->comp_done & MONO_COMP_SSA) {
5791                         mono_ssa_cprop (cfg);
5792                 } else {
5793                         mono_local_cprop (cfg);
5794                 }
5795         }
5796
5797         if (cfg->comp_done & MONO_COMP_SSA) {
5798                 mono_ssa_deadce (cfg);
5799
5800                 //mono_ssa_strength_reduction (cfg);
5801
5802                 mono_ssa_remove (cfg);
5803
5804                 if (cfg->opt & MONO_OPT_BRANCH)
5805                         optimize_branches (cfg);
5806         }
5807
5808         /* after SSA removal */
5809         if (parts == 3)
5810                 return cfg;
5811
5812         decompose_pass (cfg);
5813
5814         /* FIXME: disabled with exception clauses: bug #42136 */
5815         if ((!header->num_clauses) && (cfg->opt & MONO_OPT_LINEARS)) {
5816                 GList *vars, *regs;
5817
5818                 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
5819                 cfg->comp_done &= ~MONO_COMP_LIVENESS;
5820                 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
5821                         mono_analyze_liveness (cfg);
5822
5823                 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
5824                         regs = mono_arch_get_global_int_regs (cfg);
5825                         mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
5826                 }
5827         }
5828
5829         //mono_print_code (cfg);
5830
5831         //print_dfn (cfg);
5832
5833         /* variables are allocated after decompose, since decompose could create temps */
5834         mono_arch_allocate_vars (cfg);
5835
5836         if (cfg->opt & MONO_OPT_CFOLD)
5837                 mono_constant_fold (cfg);
5838
5839         mini_select_instructions (cfg);
5840
5841         mono_codegen (cfg);
5842         if (cfg->verbose_level >= 2) {
5843                 char *id =  mono_method_full_name (cfg->method, FALSE);
5844                 mono_disassemble_code (cfg->native_code, cfg->code_len, id + 3);
5845                 g_free (id);
5846         }
5847
5848         jinfo = mono_mempool_alloc0 (cfg->domain->mp, sizeof (MonoJitInfo));
5849
5850         jinfo = g_new0 (MonoJitInfo, 1);
5851         jinfo->method = method;
5852         jinfo->code_start = cfg->native_code;
5853         jinfo->code_size = cfg->code_len;
5854         jinfo->used_regs = cfg->used_int_regs;
5855
5856         if (header->num_clauses) {
5857                 int i;
5858
5859                 jinfo->exvar_offset = cfg->exvar? cfg->exvar->inst_offset: 0;
5860                 jinfo->num_clauses = header->num_clauses;
5861                 jinfo->clauses = mono_mempool_alloc0 (cfg->domain->mp,
5862                         sizeof (MonoJitExceptionInfo) * header->num_clauses);
5863
5864                 for (i = 0; i < header->num_clauses; i++) {
5865                         MonoExceptionClause *ec = &header->clauses [i];
5866                         MonoJitExceptionInfo *ei = &jinfo->clauses [i];
5867                         MonoBasicBlock *tblock;
5868
5869                         ei->flags = ec->flags;
5870
5871                         if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
5872                                 tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->token_or_filter);
5873                                 g_assert (tblock);
5874                                 ei->data.filter = cfg->native_code + tblock->native_offset;
5875                         } else {
5876                                 ei->data.token = ec->token_or_filter;
5877                         }
5878
5879                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset);
5880                         g_assert (tblock);
5881                         ei->try_start = cfg->native_code + tblock->native_offset;
5882                         g_assert (tblock->native_offset);
5883                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->try_offset + ec->try_len);
5884                         g_assert (tblock);
5885                         ei->try_end = cfg->native_code + tblock->native_offset;
5886                         g_assert (tblock->native_offset);
5887                         tblock = g_hash_table_lookup (cfg->bb_hash, ip + ec->handler_offset);
5888                         g_assert (tblock);
5889                         ei->handler_start = cfg->native_code + tblock->native_offset;
5890                 }
5891         }
5892
5893         mono_jit_info_table_add (cfg->domain, jinfo);
5894
5895         /* collect statistics */
5896         mono_jit_stats.allocated_code_size += cfg->code_len;
5897         code_size_ratio = cfg->code_len;
5898         if (code_size_ratio > mono_jit_stats.biggest_method_size) {
5899                         mono_jit_stats.biggest_method_size = code_size_ratio;
5900                         mono_jit_stats.biggest_method = method;
5901         }
5902         code_size_ratio = (code_size_ratio * 100) / ((MonoMethodNormal *)method)->header->code_size;
5903         if (code_size_ratio > mono_jit_stats.max_code_size_ratio) {
5904                 mono_jit_stats.max_code_size_ratio = code_size_ratio;
5905                 mono_jit_stats.max_ratio_method = method;
5906         }
5907         mono_jit_stats.native_code_size += cfg->code_len;
5908
5909         if (mono_jit_profile)
5910                 mono_profiler_method_end_jit (method, MONO_PROFILE_OK);
5911
5912         return cfg;
5913 }
5914
5915 static gpointer
5916 mono_jit_compile_method (MonoMethod *method)
5917 {
5918         /* FIXME: later copy the code from mono */
5919         MonoDomain *target_domain, *domain = mono_domain_get ();
5920         MonoCompile *cfg;
5921         GHashTable *jit_code_hash;
5922         gpointer code;
5923
5924         if (default_opt & MONO_OPT_SHARED)
5925                 target_domain = mono_root_domain;
5926         else
5927                 target_domain = domain;
5928
5929         jit_code_hash = target_domain->jit_code_hash;
5930
5931         if ((code = g_hash_table_lookup (jit_code_hash, method))) {
5932                 mono_jit_stats.methods_lookups++;
5933                 return code;
5934         }
5935
5936 #ifdef MONO_USE_AOT_COMPILER
5937         if (!mono_compile_aot) {
5938                 mono_class_init (method->klass);
5939                 if ((code = mono_aot_get_method (method))) {
5940                         g_hash_table_insert (jit_code_hash, method, code);
5941                         return code;
5942                 }
5943         }
5944 #endif
5945
5946         if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
5947             (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
5948                 if (!method->info) {
5949                         MonoMethod *nm;
5950
5951                         if (!method->addr && (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
5952                                 mono_lookup_pinvoke_call (method);
5953 #ifdef MONO_USE_EXC_TABLES
5954                         if (mono_method_blittable (method)) {
5955                                 method->info = method->addr;
5956                         } else {
5957 #endif
5958                                 nm = mono_marshal_get_native_wrapper (method);
5959                                 method->info = mono_compile_method (nm);
5960
5961                                 //if (mono_debug_format != MONO_DEBUG_FORMAT_NONE)
5962                                 //mono_debug_add_wrapper (method, nm);
5963 #ifdef MONO_USE_EXC_TABLES
5964                         }
5965 #endif
5966                 }
5967                 return method->info;
5968         } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
5969                 const char *name = method->name;
5970                 MonoMethod *nm;
5971
5972                 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
5973                         if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
5974                                 /* FIXME: uhm, we need a wrapper to handle exceptions? */
5975                                 return (gpointer)mono_delegate_ctor;
5976                         } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
5977                                 nm = mono_marshal_get_delegate_invoke (method);
5978                                 return mono_jit_compile_method (nm);
5979                         } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
5980                                 nm = mono_marshal_get_delegate_begin_invoke (method);
5981                                 return mono_jit_compile_method (nm);
5982                         } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
5983                                 nm = mono_marshal_get_delegate_end_invoke (method);
5984                                 return mono_jit_compile_method (nm);
5985                         }
5986                 }
5987                 return NULL;
5988         }
5989
5990         cfg = mini_method_compile (method, default_opt, target_domain, 0);
5991         code = cfg->native_code;
5992         mono_destroy_compile (cfg);
5993
5994         g_hash_table_insert (jit_code_hash, method, code);
5995
5996         /* make sure runtime_init is called */
5997         mono_class_vtable (target_domain, method->klass);
5998
5999         return code;
6000 }
6001
6002 /**
6003  * mono_jit_runtime_invoke:
6004  * @method: the method to invoke
6005  * @obj: this pointer
6006  * @params: array of parameter values.
6007  * @exc: used to catch exceptions objects
6008  */
6009 static MonoObject*
6010 mono_jit_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
6011 {
6012         MonoMethod *invoke;
6013         MonoObject *(*runtime_invoke) (MonoObject *this, void **params, MonoObject **exc);
6014         invoke = mono_marshal_get_runtime_invoke (method);
6015         runtime_invoke = mono_jit_compile_method (invoke);
6016         return runtime_invoke (obj, params, exc);
6017 }
6018
6019 #ifdef PLATFORM_WIN32
6020 #define GET_CONTEXT \
6021         struct sigcontext *ctx = (struct sigcontext*)_dummy;
6022 #else
6023 #define GET_CONTEXT \
6024         void **_p = (void **)&_dummy; \
6025         struct sigcontext *ctx = (struct sigcontext *)++_p;
6026 #endif
6027
6028 static void
6029 sigfpe_signal_handler (int _dummy)
6030 {
6031         MonoException *exc;
6032         GET_CONTEXT
6033
6034         exc = mono_get_exception_divide_by_zero ();
6035
6036         mono_arch_handle_exception (ctx, exc, FALSE);
6037 }
6038
6039 static void
6040 sigill_signal_handler (int _dummy)
6041 {
6042         MonoException *exc;
6043         GET_CONTEXT
6044         exc = mono_get_exception_execution_engine ("SIGILL");
6045
6046         mono_arch_handle_exception (ctx, exc, FALSE);
6047 }
6048
6049 static void
6050 sigsegv_signal_handler (int _dummy)
6051 {
6052         MonoException *exc;
6053         GET_CONTEXT
6054
6055         exc = mono_get_exception_null_reference ();
6056
6057         mono_arch_handle_exception (ctx, exc, FALSE);
6058 }
6059
6060 static void
6061 sigusr1_signal_handler (int _dummy)
6062 {
6063         MonoThread *thread;
6064         GET_CONTEXT
6065
6066         thread = mono_thread_current ();
6067
6068         g_assert (thread->abort_exc);
6069
6070         mono_arch_handle_exception (ctx, thread->abort_exc, FALSE);
6071 }
6072
6073 static void
6074 mono_runtime_install_handlers (void)
6075 {
6076 #ifndef PLATFORM_WIN32
6077         struct sigaction sa;
6078 #endif
6079
6080 #ifdef PLATFORM_WIN32
6081         win32_seh_init();
6082         win32_seh_set_handler(SIGFPE, sigfpe_signal_handler);
6083         win32_seh_set_handler(SIGILL, sigill_signal_handler);
6084         win32_seh_set_handler(SIGSEGV, sigsegv_signal_handler);
6085 #else /* !PLATFORM_WIN32 */
6086
6087         /* libpthreads has its own implementation of sigaction(),
6088          * but it seems to work well with our current exception
6089          * handlers. If not we must call syscall directly instead
6090          * of sigaction */
6091
6092         /* catch SIGFPE */
6093         sa.sa_handler = sigfpe_signal_handler;
6094         sigemptyset (&sa.sa_mask);
6095         sa.sa_flags = 0;
6096         //g_assert (syscall (SYS_sigaction, SIGFPE, &sa, NULL) != -1);
6097         g_assert (sigaction (SIGFPE, &sa, NULL) != -1);
6098
6099         /* catch SIGILL */
6100         sa.sa_handler = sigill_signal_handler;
6101         sigemptyset (&sa.sa_mask);
6102         sa.sa_flags = 0;
6103         //g_assert (syscall (SYS_sigaction, SIGILL, &sa, NULL) != -1);
6104         g_assert (sigaction (SIGILL, &sa, NULL) != -1);
6105
6106         /* catch thread abort signal */
6107         sa.sa_handler = sigusr1_signal_handler;
6108         sigemptyset (&sa.sa_mask);
6109         sa.sa_flags = 0;
6110         //g_assert (syscall (SYS_sigaction, SIGILL, &sa, NULL) != -1);
6111         g_assert (sigaction (mono_thread_get_abort_signal (), &sa, NULL) != -1);
6112
6113 #if 1
6114         /* catch SIGSEGV */
6115         sa.sa_handler = sigsegv_signal_handler;
6116         sigemptyset (&sa.sa_mask);
6117         sa.sa_flags = 0;
6118         //g_assert (syscall (SYS_sigaction, SIGSEGV, &sa, NULL) != -1);
6119         g_assert (sigaction (SIGSEGV, &sa, NULL) != -1);
6120 #endif
6121 #endif /* PLATFORM_WIN32 */
6122 }
6123
6124 /* mono_jit_create_remoting_trampoline:
6125  * @method: pointer to the method info
6126  *
6127  * Creates a trampoline which calls the remoting functions. This
6128  * is used in the vtable of transparent proxies.
6129  *
6130  * Returns: a pointer to the newly created code
6131  */
6132 static gpointer
6133 mono_jit_create_remoting_trampoline (MonoMethod *method)
6134 {
6135         MonoMethod *nm;
6136         guint8 *addr = NULL;
6137
6138         if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
6139             method->signature->hasthis && (method->klass->marshalbyref || method->klass == mono_defaults.object_class)) {
6140                 nm = mono_marshal_get_remoting_invoke (method);
6141                 addr = mono_compile_method (nm);
6142         } else {
6143                 addr = mono_compile_method (method);
6144         }
6145         return addr;
6146 }
6147
6148 static CRITICAL_SECTION ms;
6149
6150 MonoDomain *
6151 mini_init (const char *filename)
6152 {
6153         MonoDomain *domain;
6154
6155         metadata_section = &ms;
6156         InitializeCriticalSection (metadata_section);
6157
6158         mono_jit_tls_id = TlsAlloc ();
6159         mono_thread_start_cb (GetCurrentThreadId (), (gpointer)-1, NULL);
6160
6161         mono_burg_init ();
6162
6163         mono_runtime_install_handlers ();
6164
6165         mono_install_compile_method (mono_jit_compile_method);
6166         mono_install_trampoline (mono_arch_create_jit_trampoline);
6167         mono_install_remoting_trampoline (mono_jit_create_remoting_trampoline);
6168         mono_install_runtime_invoke (mono_jit_runtime_invoke);
6169         mono_install_handler (mono_arch_get_throw_exception ());
6170         mono_install_stack_walk (mono_jit_walk_stack);
6171         mono_install_get_config_dir ();
6172
6173         domain = mono_init (filename);
6174         mono_init_icall ();
6175
6176         mono_add_internal_call ("System.Diagnostics.StackFrame::get_frame_info",
6177                                 ves_icall_get_frame_info);
6178         mono_add_internal_call ("System.Diagnostics.StackTrace::get_trace",
6179                                 ves_icall_get_trace);
6180         mono_add_internal_call ("Mono.Runtime::mono_runtime_install_handlers",
6181                                 mono_runtime_install_handlers);
6182
6183
6184         create_helper_signature ();
6185
6186         mono_arch_register_lowlevel_calls ();
6187         mono_register_jit_icall (mono_profiler_method_enter, "mono_profiler_method_enter", NULL, TRUE);
6188         mono_register_jit_icall (mono_profiler_method_leave, "mono_profiler_method_leave", NULL, TRUE);
6189
6190         mono_register_jit_icall (mono_get_lmf_addr, "mono_get_lmf_addr", helper_sig_ptr_void, TRUE);
6191         mono_register_jit_icall (mono_domain_get, "mono_domain_get", helper_sig_domain_get, TRUE);
6192
6193         /* fixme: we cant hanlde vararg methods this way, because the signature is not constant */
6194         //mono_register_jit_icall (ves_array_element_address, "ves_array_element_address", NULL);
6195         //mono_register_jit_icall (mono_array_new_va, "mono_array_new_va", NULL);
6196
6197         mono_register_jit_icall (mono_arch_get_throw_exception (), "mono_arch_throw_exception", helper_sig_void_obj, TRUE);
6198         mono_register_jit_icall (mono_arch_get_throw_exception_by_name (), "mono_arch_throw_exception_by_name",
6199                                  helper_sig_void_ptr, TRUE);
6200
6201         /*
6202          * NOTE, NOTE, NOTE, NOTE:
6203          * when adding emulation for some opcodes, remember to also add a dummy
6204          * rule to the burg files, because we need the arity information to be correct.
6205          */
6206         mono_register_opcode_emulation (OP_LMUL, helper_sig_long_long_long, mono_llmult);
6207         mono_register_opcode_emulation (OP_LMUL_OVF_UN, helper_sig_long_long_long, mono_llmult_ovf_un);
6208         mono_register_opcode_emulation (OP_LMUL_OVF, helper_sig_long_long_long, mono_llmult_ovf);
6209         mono_register_opcode_emulation (OP_LDIV, helper_sig_long_long_long, mono_lldiv);
6210         mono_register_opcode_emulation (OP_LDIV_UN, helper_sig_long_long_long, mono_lldiv_un);
6211         mono_register_opcode_emulation (OP_LREM, helper_sig_long_long_long, mono_llrem);
6212         mono_register_opcode_emulation (OP_LREM_UN, helper_sig_long_long_long, mono_llrem_un);
6213
6214         mono_register_opcode_emulation (OP_LSHL, helper_sig_long_long_int, mono_lshl);
6215         mono_register_opcode_emulation (OP_LSHR, helper_sig_long_long_int, mono_lshr);
6216         mono_register_opcode_emulation (OP_LSHR_UN, helper_sig_long_long_int, mono_lshr_un);
6217
6218         mono_register_opcode_emulation (OP_FCONV_TO_U8, helper_sig_ulong_double, mono_fconv_u8);
6219         mono_register_opcode_emulation (OP_FCONV_TO_U4, helper_sig_uint_double, mono_fconv_u4);
6220         mono_register_opcode_emulation (OP_FCONV_TO_OVF_I8, helper_sig_long_double, mono_fconv_ovf_i8);
6221         mono_register_opcode_emulation (OP_FCONV_TO_OVF_U8, helper_sig_ulong_double, mono_fconv_ovf_u8);
6222
6223 #if SIZEOF_VOID_P == 4
6224         mono_register_opcode_emulation (OP_FCONV_TO_U, helper_sig_uint_double, mono_fconv_u4);
6225 #else
6226 #warning "fixme: add opcode emulation"
6227 #endif
6228
6229         /* other jit icalls */
6230         mono_register_jit_icall (mono_class_static_field_address , "mono_class_static_field_address",
6231                                  helper_sig_ptr_ptr_ptr, FALSE);
6232         mono_register_jit_icall (mono_ldtoken_wrapper, "mono_ldtoken_wrapper", helper_sig_ptr_ptr_ptr, FALSE);
6233         mono_register_jit_icall (mono_threads_get_static_data, "mono_threads_get_static_data", helper_sig_ptr_int, FALSE);
6234         mono_register_jit_icall (mono_ldstr, "mono_ldstr", helper_sig_ldstr, FALSE);
6235         mono_register_jit_icall (helper_memcpy, "helper_memcpy", helper_sig_memcpy, FALSE);
6236         mono_register_jit_icall (helper_memset, "helper_memset", helper_sig_memset, FALSE);
6237         mono_register_jit_icall (helper_initobj, "helper_initobj", helper_sig_initobj, FALSE);
6238         mono_register_jit_icall (helper_stelem_ref, "helper_stelem_ref", helper_sig_stelem_ref, FALSE);
6239         mono_register_jit_icall (mono_object_new, "mono_object_new", helper_sig_object_new, FALSE);
6240         mono_register_jit_icall (mono_object_new_specific, "mono_object_new_specific", helper_sig_object_new_specific, FALSE);
6241         mono_register_jit_icall (mono_array_new, "mono_array_new", helper_sig_newarr, FALSE);
6242         mono_register_jit_icall (mono_array_new_specific, "mono_array_new_specific", helper_sig_newarr_specific, FALSE);
6243         mono_register_jit_icall (mono_string_to_utf16, "mono_string_to_utf16", helper_sig_ptr_obj, FALSE);
6244         mono_register_jit_icall (mono_string_from_utf16, "mono_string_from_utf16", helper_sig_obj_ptr, FALSE);
6245         mono_register_jit_icall (mono_string_new_wrapper, "mono_string_new_wrapper", helper_sig_obj_ptr, FALSE);
6246         mono_register_jit_icall (mono_string_to_utf8, "mono_string_to_utf8", helper_sig_ptr_obj, FALSE);
6247         mono_register_jit_icall (mono_string_to_bstr, "mono_string_to_bstr", helper_sig_ptr_obj, FALSE);
6248         mono_register_jit_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", helper_sig_ptr_obj, FALSE);
6249         mono_register_jit_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", helper_sig_ptr_obj, FALSE);
6250         mono_register_jit_icall (mono_array_to_savearray, "mono_array_to_savearray", helper_sig_ptr_obj, FALSE);
6251         mono_register_jit_icall (mono_array_to_lparray, "mono_array_to_lparray", helper_sig_ptr_obj, FALSE);
6252         mono_register_jit_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", helper_sig_ptr_obj, FALSE);
6253         mono_register_jit_icall (mono_marshal_string_array, "mono_marshal_string_array", helper_sig_ptr_obj, FALSE);
6254         mono_register_jit_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", helper_sig_void_ptr_ptr, FALSE);
6255         mono_register_jit_icall (mono_marshal_free_array, "mono_marshal_free_array", helper_sig_void_ptr_ptr, FALSE);
6256         mono_register_jit_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", helper_sig_void_ptr_ptr_ptr, FALSE);
6257         mono_register_jit_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", helper_sig_void_ptr_ptr_ptr, FALSE);
6258         mono_register_jit_icall (g_free, "g_free", helper_sig_void_ptr, FALSE);
6259         mono_register_jit_icall (mono_ldftn, "mono_ldftn", helper_sig_compile, FALSE);
6260         mono_register_jit_icall (mono_ldvirtfn, "mono_ldvirtfn", helper_sig_compile_virt, FALSE);
6261
6262         mono_runtime_init (domain, mono_thread_start_cb,
6263                            mono_thread_attach_cb);
6264
6265         //mono_thread_attach (domain);
6266         return domain;
6267 }
6268
6269 MonoJitStats mono_jit_stats = {0};
6270
6271 static void
6272 print_jit_stats (void)
6273 {
6274         if (mono_jit_stats.enabled) {
6275                 g_print ("Mono Jit statistics\n");
6276                 g_print ("Compiled methods:       %ld\n", mono_jit_stats.methods_compiled);
6277                 g_print ("Methods from AOT:       %ld\n", mono_jit_stats.methods_aot);
6278                 g_print ("Methods cache lookup:   %ld\n", mono_jit_stats.methods_lookups);
6279                 g_print ("Method trampolines:     %ld\n", mono_jit_stats.method_trampolines);
6280                 g_print ("Basic blocks:           %ld\n", mono_jit_stats.basic_blocks);
6281                 g_print ("Max basic blocks:       %ld\n", mono_jit_stats.max_basic_blocks);
6282                 g_print ("Allocated vars:         %ld\n", mono_jit_stats.allocate_var);
6283                 g_print ("Analyze stack repeat:   %ld\n", mono_jit_stats.analyze_stack_repeat);
6284                 g_print ("Compiled CIL code size: %ld\n", mono_jit_stats.cil_code_size);
6285                 g_print ("Native code size:       %ld\n", mono_jit_stats.native_code_size);
6286                 g_print ("Max code size ratio:    %.2f (%s::%s)\n", mono_jit_stats.max_code_size_ratio/100.0,
6287                                 mono_jit_stats.max_ratio_method->klass->name, mono_jit_stats.max_ratio_method->name);
6288                 g_print ("Biggest method:         %ld (%s::%s)\n", mono_jit_stats.biggest_method_size,
6289                                 mono_jit_stats.biggest_method->klass->name, mono_jit_stats.biggest_method->name);
6290                 g_print ("Code reallocs:          %ld\n", mono_jit_stats.code_reallocs);
6291                 g_print ("Allocated code size:    %ld\n", mono_jit_stats.allocated_code_size);
6292                 g_print ("Inlineable methods:     %ld\n", mono_jit_stats.inlineable_methods);
6293                 g_print ("Inlined methods:        %ld\n", mono_jit_stats.inlined_methods);
6294
6295                 g_print ("\nCreated object count:   %ld\n", mono_stats.new_object_count);
6296                 g_print ("Initialized classes:    %ld\n", mono_stats.initialized_class_count);
6297                 g_print ("Used classes:           %ld\n", mono_stats.used_class_count);
6298                 g_print ("Static data size:       %ld\n", mono_stats.class_static_data_size);
6299                 g_print ("VTable data size:       %ld\n", mono_stats.class_vtable_size);
6300         }
6301 }
6302
6303 void
6304 mini_cleanup (MonoDomain *domain)
6305 {
6306         /*
6307          * mono_runtime_cleanup() and mono_domain_finalize () need to
6308          * be called early since they need the execution engine still
6309          * fully working (mono_domain_finalize may invoke managed finalizers
6310          * and mono_runtime_cleanup will wait for other threads to finish).
6311          */
6312         mono_domain_finalize (domain);
6313
6314         mono_runtime_cleanup (domain);
6315
6316         mono_profiler_shutdown ();
6317
6318         mono_debug_cleanup ();
6319 #ifdef PLATFORM_WIN32
6320         win32_seh_cleanup();
6321 #endif
6322
6323         mono_domain_unload (domain, TRUE);
6324
6325         print_jit_stats ();
6326         DeleteCriticalSection (metadata_section);
6327 }
6328
6329 void
6330 mono_set_defaults (int verbose_level, guint32 opts)
6331 {
6332         mini_verbose = verbose_level;
6333         default_opt = opts;
6334 }
6335