mono/mini/interp/transform.c

   1 /**
   2  * \file
   3  * transform CIL into different opcodes for more
   4  * efficient interpretation
   5  *
   6  * Written by Bernie Solomon (bernard@ugsolutions.com)
   7  * Copyright (c) 2004.
   8  */
   9
  10 #include <string.h>
  11 #include <mono/metadata/appdomain.h>
  12 #include <mono/metadata/debug-helpers.h>
  13 #include <mono/metadata/exception.h>
  14 #include <mono/metadata/mono-endian.h>
  15 #include <mono/metadata/marshal.h>
  16 #include <mono/metadata/profiler-private.h>
  17 #include <mono/metadata/tabledefs.h>
  18 #include <mono/metadata/seq-points-data.h>
  19
  20 #include <mono/mini/mini.h>
  21
  22 #include "mintops.h"
  23 #include "interp-internals.h"
  24 #include "interp.h"
  25
  26 // TODO: export from marshal.c
  27 MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
  28
  29 #define DEBUG 0
  30
  31 typedef struct
  32 {
  33         MonoClass *klass;
  34         unsigned char type;
  35         unsigned char flags;
  36 } StackInfo;
  37
  38 typedef struct {
  39         guint8 *ip;
  40         GSList *preds;
  41         GSList *seq_points;
  42         SeqPoint *last_seq_point;
  43
  44         // This will hold a list of last sequence points of incoming basic blocks
  45         SeqPoint **pred_seq_points;
  46         guint num_pred_seq_points;
  47 } InterpBasicBlock;
  48
  49 typedef enum {
  50         RELOC_SHORT_BRANCH,
  51         RELOC_LONG_BRANCH,
  52         RELOC_SWITCH
  53 } RelocType;
  54
  55 typedef struct {
  56         RelocType type;
  57         /* In the interpreter IR */
  58         int offset;
  59         /* In the IL code */
  60         int target;
  61 } Reloc;
  62
  63 typedef struct
  64 {
  65         MonoMethod *method;
  66         MonoMethodHeader *header;
  67         InterpMethod *rtm;
  68         const unsigned char *il_code;
  69         const unsigned char *ip;
  70         const unsigned char *last_ip;
  71         const unsigned char *in_start;
  72         int code_size;
  73         int *in_offsets;
  74         StackInfo **stack_state;
  75         int *stack_height;
  76         int *vt_stack_size;
  77         unsigned char *is_bb_start;
  78         unsigned short *new_code;
  79         unsigned short *new_code_end;
  80         unsigned short *new_ip;
  81         unsigned short *last_new_ip;
  82         unsigned int max_code_size;
  83         StackInfo *stack;
  84         StackInfo *sp;
  85         unsigned int max_stack_height;
  86         unsigned int vt_sp;
  87         unsigned int max_vt_sp;
  88         int n_data_items;
  89         int max_data_items;
  90         void **data_items;
  91         GHashTable *data_hash;
  92         int *clause_indexes;
  93         gboolean gen_sdb_seq_points;
  94         GPtrArray *seq_points;
  95         InterpBasicBlock **offset_to_bb;
  96         InterpBasicBlock *entry_bb;
  97         MonoMemPool     *mempool;
  98         GList *basic_blocks;
  99         GPtrArray *relocs;
 100         gboolean verbose_level;
 101 } TransformData;
 102
 103 #define MINT_TYPE_I1 0
 104 #define MINT_TYPE_U1 1
 105 #define MINT_TYPE_I2 2
 106 #define MINT_TYPE_U2 3
 107 #define MINT_TYPE_I4 4
 108 #define MINT_TYPE_I8 5
 109 #define MINT_TYPE_R4 6
 110 #define MINT_TYPE_R8 7
 111 #define MINT_TYPE_O  8
 112 #define MINT_TYPE_P  9
 113 #define MINT_TYPE_VT 10
 114
 115 #define STACK_TYPE_I4 0
 116 #define STACK_TYPE_I8 1
 117 #define STACK_TYPE_R8 2
 118 #define STACK_TYPE_O  3
 119 #define STACK_TYPE_VT 4
 120 #define STACK_TYPE_MP 5
 121 #define STACK_TYPE_F  6
 122
 123 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
 124
 125 #if SIZEOF_VOID_P == 8
 126 #define STACK_TYPE_I STACK_TYPE_I8
 127 #else
 128 #define STACK_TYPE_I STACK_TYPE_I4
 129 #endif
 130
 131 static int stack_type [] = {
 132         STACK_TYPE_I4, /*I1*/
 133         STACK_TYPE_I4, /*U1*/
 134         STACK_TYPE_I4, /*I2*/
 135         STACK_TYPE_I4, /*U2*/
 136         STACK_TYPE_I4, /*I4*/
 137         STACK_TYPE_I8, /*I8*/
 138         STACK_TYPE_R8, /*R4*/
 139         STACK_TYPE_R8, /*R8*/
 140         STACK_TYPE_O,  /*O*/
 141         STACK_TYPE_MP, /*P*/
 142         STACK_TYPE_VT
 143 };
 144
 145 static void
 146 grow_code (TransformData *td)
 147 {
 148         unsigned int old_ip_offset = td->new_ip - td->new_code;
 149         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 150         g_assert (old_ip_offset <= td->max_code_size);
 151         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 152         td->new_code_end = td->new_code + td->max_code_size;
 153         td->new_ip = td->new_code + old_ip_offset;
 154         td->last_new_ip = td->new_code + old_last_ip_offset;
 155 }
 156
 157 #define ENSURE_CODE(td, n) \
 158         do { \
 159                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 160                         grow_code (td); \
 161         } while (0)
 162
 163 #define ADD_CODE(td, n) \
 164         do { \
 165                 if ((td)->new_ip == (td)->new_code_end) \
 166                         grow_code (td); \
 167                 *(td)->new_ip++ = (n); \
 168         } while (0)
 169
 170 #define CHECK_STACK(td, n) \
 171         do { \
 172                 int stack_size = (td)->sp - (td)->stack; \
 173                 if (stack_size < (n)) \
 174                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 175                                 (td)->method->klass->name, (td)->method->name, \
 176                                 stack_size, n, (td)->ip - (td)->il_code); \
 177         } while (0)
 178
 179 #define ENSURE_I4(td, sp_off) \
 180         do { \
 181                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 182                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 183         } while (0)
 184
 185 static void
 186 handle_branch (TransformData *td, int short_op, int long_op, int offset)
 187 {
 188         int shorten_branch = 0;
 189         int target = td->ip + offset - td->il_code;
 190         if (target < 0 || target >= td->code_size)
 191                 g_assert_not_reached ();
 192         if (offset > 0 && td->stack_height [target] < 0) {
 193                 td->stack_height [target] = td->sp - td->stack;
 194                 if (td->stack_height [target] > 0)
 195                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 196                 td->vt_stack_size [target] = td->vt_sp;
 197         }
 198         if (offset < 0) {
 199                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 200                 if (offset >= -32768) {
 201                         shorten_branch = 1;
 202                 }
 203         } else {
 204                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 205                         shorten_branch = 1;
 206
 207                 Reloc *reloc = mono_mempool_alloc0 (td->mempool, sizeof (Reloc));
 208                 if (shorten_branch) {
 209                         offset = 0xffff;
 210                         reloc->type = RELOC_SHORT_BRANCH;
 211                 } else {
 212                         offset = 0xdeadbeef;
 213                         reloc->type = RELOC_LONG_BRANCH;
 214                 }
 215                 reloc->offset = td->new_ip - td->new_code;
 216                 reloc->target = target;
 217                 g_ptr_array_add (td->relocs, reloc);
 218         }
 219         if (shorten_branch) {
 220                 ADD_CODE(td, short_op);
 221                 ADD_CODE(td, offset);
 222         } else {
 223                 ADD_CODE(td, long_op);
 224                 ADD_CODE(td, * (unsigned short *)(&offset));
 225                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 226         }
 227 }
 228
 229 static void
 230 one_arg_branch(TransformData *td, int mint_op, int offset)
 231 {
 232         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 233         int long_op = mint_op + type - STACK_TYPE_I4;
 234         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 235         CHECK_STACK(td, 1);
 236         --td->sp;
 237         handle_branch (td, short_op, long_op, offset);
 238 }
 239
 240 static void
 241 two_arg_branch(TransformData *td, int mint_op, int offset)
 242 {
 243         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 244         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 245         int long_op = mint_op + type1 - STACK_TYPE_I4;
 246         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 247         CHECK_STACK(td, 2);
 248         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 249                 ADD_CODE(td, MINT_CONV_I8_I4);
 250                 td->in_offsets [td->ip - td->il_code]++;
 251         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 252                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 253                 td->in_offsets [td->ip - td->il_code]++;
 254         } else if (type1 != type2) {
 255                 g_warning("%s.%s: branch type mismatch %d %d",
 256                         td->method->klass->name, td->method->name,
 257                         td->sp [-1].type, td->sp [-2].type);
 258         }
 259         td->sp -= 2;
 260         handle_branch (td, short_op, long_op, offset);
 261 }
 262
 263 static void
 264 unary_arith_op(TransformData *td, int mint_op)
 265 {
 266         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 267         CHECK_STACK(td, 1);
 268         ADD_CODE(td, op);
 269 }
 270
 271 static void
 272 binary_arith_op(TransformData *td, int mint_op)
 273 {
 274         int type1 = td->sp [-2].type;
 275         int type2 = td->sp [-1].type;
 276         int op;
 277 #if SIZEOF_VOID_P == 8
 278         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 279                 ADD_CODE(td, MINT_CONV_I8_I4);
 280                 type2 = STACK_TYPE_I8;
 281         }
 282         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 283                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 284                 type1 = STACK_TYPE_I8;
 285                 td->sp [-2].type = STACK_TYPE_I8;
 286         }
 287 #endif
 288         if (type1 == STACK_TYPE_MP)
 289                 type1 = STACK_TYPE_I;
 290         if (type2 == STACK_TYPE_MP)
 291                 type2 = STACK_TYPE_I;
 292         if (type1 != type2) {
 293                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 294                         td->method->klass->name, td->method->name,
 295                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 296         }
 297         op = mint_op + type1 - STACK_TYPE_I4;
 298         CHECK_STACK(td, 2);
 299         ADD_CODE(td, op);
 300         --td->sp;
 301 }
 302
 303 static void
 304 shift_op(TransformData *td, int mint_op)
 305 {
 306         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 307         CHECK_STACK(td, 2);
 308         if (td->sp [-1].type != STACK_TYPE_I4) {
 309                 g_warning("%s.%s: shift type mismatch %d",
 310                         td->method->klass->name, td->method->name,
 311                         td->sp [-2].type);
 312         }
 313         ADD_CODE(td, op);
 314         --td->sp;
 315 }
 316
 317 static int
 318 mint_type(MonoType *type)
 319 {
 320         if (type->byref)
 321                 return MINT_TYPE_P;
 322 enum_type:
 323         switch (type->type) {
 324         case MONO_TYPE_I1:
 325                 return MINT_TYPE_I1;
 326         case MONO_TYPE_U1:
 327         case MONO_TYPE_BOOLEAN:
 328                 return MINT_TYPE_U1;
 329         case MONO_TYPE_I2:
 330                 return MINT_TYPE_I2;
 331         case MONO_TYPE_U2:
 332         case MONO_TYPE_CHAR:
 333                 return MINT_TYPE_U2;
 334         case MONO_TYPE_I4:
 335         case MONO_TYPE_U4:
 336                 return MINT_TYPE_I4;
 337         case MONO_TYPE_I:
 338         case MONO_TYPE_U:
 339 #if SIZEOF_VOID_P == 4
 340                 return MINT_TYPE_I4;
 341 #else
 342                 return MINT_TYPE_I8;
 343 #endif
 344         case MONO_TYPE_PTR:
 345                 return MINT_TYPE_P;
 346         case MONO_TYPE_R4:
 347                 return MINT_TYPE_R4;
 348         case MONO_TYPE_I8:
 349         case MONO_TYPE_U8:
 350                 return MINT_TYPE_I8;
 351         case MONO_TYPE_R8:
 352                 return MINT_TYPE_R8;
 353         case MONO_TYPE_STRING:
 354         case MONO_TYPE_SZARRAY:
 355         case MONO_TYPE_CLASS:
 356         case MONO_TYPE_OBJECT:
 357         case MONO_TYPE_ARRAY:
 358                 return MINT_TYPE_O;
 359         case MONO_TYPE_VALUETYPE:
 360                 if (type->data.klass->enumtype) {
 361                         type = mono_class_enum_basetype (type->data.klass);
 362                         goto enum_type;
 363                 } else
 364                         return MINT_TYPE_VT;
 365         case MONO_TYPE_TYPEDBYREF:
 366                 return MINT_TYPE_VT;
 367         case MONO_TYPE_GENERICINST:
 368                 type = &type->data.generic_class->container_class->byval_arg;
 369                 goto enum_type;
 370         default:
 371                 g_warning ("got type 0x%02x", type->type);
 372                 g_assert_not_reached ();
 373         }
 374         return -1;
 375 }
 376
 377 static int
 378 can_store (int stack_type, int var_type)
 379 {
 380         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 381                 stack_type = STACK_TYPE_I;
 382         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 383                 var_type = STACK_TYPE_I;
 384         return stack_type == var_type;
 385 }
 386
 387 #define SET_SIMPLE_TYPE(s, ty) \
 388         do { \
 389                 (s)->type = (ty); \
 390                 (s)->flags = 0; \
 391                 (s)->klass = NULL; \
 392         } while (0)
 393
 394 #define SET_TYPE(s, ty, k) \
 395         do { \
 396                 (s)->type = (ty); \
 397                 (s)->flags = 0; \
 398                 (s)->klass = k; \
 399         } while (0)
 400
 401 #define PUSH_SIMPLE_TYPE(td, ty) \
 402         do { \
 403                 int sp_height; \
 404                 (td)->sp++; \
 405                 sp_height = (td)->sp - (td)->stack; \
 406                 if (sp_height > (td)->max_stack_height) \
 407                         (td)->max_stack_height = sp_height; \
 408                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 409         } while (0)
 410
 411 #define PUSH_TYPE(td, ty, k) \
 412         do { \
 413                 int sp_height; \
 414                 (td)->sp++; \
 415                 sp_height = (td)->sp - (td)->stack; \
 416                 if (sp_height > (td)->max_stack_height) \
 417                         (td)->max_stack_height = sp_height; \
 418                 SET_TYPE((td)->sp - 1, ty, k); \
 419         } while (0)
 420
 421 #define PUSH_VT(td, size) \
 422         do { \
 423                 (td)->vt_sp += ((size) + 7) & ~7; \
 424                 if ((td)->vt_sp > (td)->max_vt_sp) \
 425                         (td)->max_vt_sp = (td)->vt_sp; \
 426         } while (0)
 427
 428 #define POP_VT(td, size) \
 429         do { \
 430                 (td)->vt_sp -= ((size) + 7) & ~7; \
 431         } while (0)
 432
 433 #if NO_UNALIGNED_ACCESS
 434 #define WRITE32(td, v) \
 435         do { \
 436                 ENSURE_CODE(td, 2); \
 437                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 438                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 439                 (td)->new_ip += 2; \
 440         } while (0)
 441
 442 #define WRITE64(td, v) \
 443         do { \
 444                 ENSURE_CODE(td, 4); \
 445                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 446                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 447                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 448                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 449                 (td)->new_ip += 4; \
 450         } while (0)
 451 #else
 452 #define WRITE32(td, v) \
 453         do { \
 454                 ENSURE_CODE(td, 2); \
 455                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 456                 (td)->new_ip += 2; \
 457         } while (0)
 458
 459 #define WRITE64(td, v) \
 460         do { \
 461                 ENSURE_CODE(td, 4); \
 462                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 463                 (td)->new_ip += 4; \
 464         } while (0)
 465
 466 #endif
 467
 468 static void
 469 load_arg(TransformData *td, int n)
 470 {
 471         int mt;
 472         MonoClass *klass = NULL;
 473         MonoType *type;
 474
 475         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 476         if (hasthis && n == 0)
 477                 type = &td->method->klass->byval_arg;
 478         else
 479                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 480
 481         mt = mint_type (type);
 482         if (mt == MINT_TYPE_VT) {
 483                 gint32 size;
 484                 klass = mono_class_from_mono_type (type);
 485                 if (mono_method_signature (td->method)->pinvoke)
 486                         size = mono_class_native_size (klass, NULL);
 487                 else
 488                         size = mono_class_value_size (klass, NULL);
 489
 490                 if (hasthis && n == 0) {
 491                         mt = MINT_TYPE_P;
 492                         ADD_CODE (td, MINT_LDARG_P);
 493                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 494                         klass = NULL;
 495                 } else {
 496                         PUSH_VT (td, size);
 497                         ADD_CODE (td, MINT_LDARG_VT);
 498                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 499                         WRITE32 (td, &size);
 500                 }
 501         } else {
 502                 if (hasthis && n == 0) {
 503                         mt = MINT_TYPE_P;
 504                         ADD_CODE (td, MINT_LDARG_P);
 505                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 506                         klass = NULL;
 507                 } else {
 508                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 509                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 510                         if (mt == MINT_TYPE_O)
 511                                 klass = mono_class_from_mono_type (type);
 512                 }
 513         }
 514         PUSH_TYPE(td, stack_type[mt], klass);
 515 }
 516
 517 static void
 518 store_arg(TransformData *td, int n)
 519 {
 520         int mt;
 521         CHECK_STACK (td, 1);
 522         MonoType *type;
 523
 524         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 525         if (hasthis && n == 0)
 526                 type = &td->method->klass->byval_arg;
 527         else
 528                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 529
 530         mt = mint_type (type);
 531         if (mt == MINT_TYPE_VT) {
 532                 gint32 size;
 533                 MonoClass *klass = mono_class_from_mono_type (type);
 534                 if (mono_method_signature (td->method)->pinvoke)
 535                         size = mono_class_native_size (klass, NULL);
 536                 else
 537                         size = mono_class_value_size (klass, NULL);
 538                 ADD_CODE(td, MINT_STARG_VT);
 539                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 540                 WRITE32(td, &size);
 541                 if (td->sp [-1].type == STACK_TYPE_VT)
 542                         POP_VT(td, size);
 543         } else {
 544                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 545                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 546         }
 547         --td->sp;
 548 }
 549
 550 static void
 551 store_inarg(TransformData *td, int n)
 552 {
 553         MonoType *type;
 554         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 555         if (hasthis && n == 0)
 556                 type = &td->method->klass->byval_arg;
 557         else
 558                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 559
 560         int mt = mint_type (type);
 561         if (hasthis && n == 0) {
 562                 ADD_CODE (td, MINT_STINARG_P);
 563                 ADD_CODE (td, n);
 564                 return;
 565         }
 566         if (mt == MINT_TYPE_VT) {
 567                 MonoClass *klass = mono_class_from_mono_type (type);
 568                 gint32 size;
 569                 if (mono_method_signature (td->method)->pinvoke)
 570                         size = mono_class_native_size (klass, NULL);
 571                 else
 572                         size = mono_class_value_size (klass, NULL);
 573                 ADD_CODE(td, MINT_STINARG_VT);
 574                 ADD_CODE(td, n);
 575                 WRITE32(td, &size);
 576         } else {
 577                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 578                 ADD_CODE(td, n);
 579         }
 580 }
 581
 582 static void
 583 load_local(TransformData *td, int n)
 584 {
 585         MonoType *type = td->header->locals [n];
 586         int mt = mint_type (type);
 587         int offset = td->rtm->local_offsets [n];
 588         MonoClass *klass = NULL;
 589         if (mt == MINT_TYPE_VT) {
 590                 klass = mono_class_from_mono_type (type);
 591                 gint32 size = mono_class_value_size (klass, NULL);
 592                 PUSH_VT(td, size);
 593                 ADD_CODE(td, MINT_LDLOC_VT);
 594                 ADD_CODE(td, offset); /*FIX for large offset */
 595                 WRITE32(td, &size);
 596         } else {
 597                 g_assert (mt < MINT_TYPE_VT);
 598                 if (!td->gen_sdb_seq_points &&
 599                         mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 600                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 601                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 602                 } else if (!td->gen_sdb_seq_points &&
 603                                    mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 604                                    td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 605                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 606                 } else {
 607                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 608                         ADD_CODE(td, offset); /*FIX for large offset */
 609                 }
 610                 if (mt == MINT_TYPE_O)
 611                         klass = mono_class_from_mono_type (type);
 612         }
 613         PUSH_TYPE(td, stack_type[mt], klass);
 614 }
 615
 616 static void
 617 store_local(TransformData *td, int n)
 618 {
 619         MonoType *type = td->header->locals [n];
 620         int mt = mint_type (type);
 621         int offset = td->rtm->local_offsets [n];
 622         CHECK_STACK (td, 1);
 623 #if SIZEOF_VOID_P == 8
 624         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 625                 ADD_CODE(td, MINT_CONV_I8_I4);
 626                 td->sp [-1].type = STACK_TYPE_I8;
 627         }
 628 #endif
 629         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 630                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 631                         td->method->klass->name, td->method->name,
 632                         stack_type [mt], td->sp [-1].type);
 633         }
 634         if (mt == MINT_TYPE_VT) {
 635                 MonoClass *klass = mono_class_from_mono_type (type);
 636                 gint32 size = mono_class_value_size (klass, NULL);
 637                 ADD_CODE(td, MINT_STLOC_VT);
 638                 ADD_CODE(td, offset); /*FIX for large offset */
 639                 WRITE32(td, &size);
 640                 if (td->sp [-1].type == STACK_TYPE_VT)
 641                         POP_VT(td, size);
 642         } else {
 643                 g_assert (mt < MINT_TYPE_VT);
 644                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 645                 ADD_CODE(td, offset); /*FIX for large offset */
 646         }
 647         --td->sp;
 648 }
 649
 650 #define SIMPLE_OP(td, op) \
 651         do { \
 652                 ADD_CODE(td, op); \
 653                 ++td->ip; \
 654         } while (0)
 655
 656 static guint16
 657 get_data_item_index (TransformData *td, void *ptr)
 658 {
 659         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 660         guint index;
 661         if (p != NULL)
 662                 return GPOINTER_TO_UINT (p) - 1;
 663         if (td->max_data_items == td->n_data_items) {
 664                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 665                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 666         }
 667         index = td->n_data_items;
 668         td->data_items [index] = ptr;
 669         ++td->n_data_items;
 670         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 671         return index;
 672 }
 673
 674 static gboolean
 675 jit_call_supported (MonoMethod *method, MonoMethodSignature *sig)
 676 {
 677         GSList *l;
 678
 679         if (sig->param_count > 6)
 680                 return FALSE;
 681         if (sig->pinvoke)
 682                 return FALSE;
 683         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 684                 return FALSE;
 685         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
 686                 return FALSE;
 687         if (method->is_inflated)
 688                 return FALSE;
 689         if (method->string_ctor)
 690                 return FALSE;
 691
 692         for (l = jit_classes; l; l = l->next) {
 693                 char *class_name = l->data;
 694                 // FIXME: Namespaces
 695                 if (!strcmp (method->klass->name, class_name))
 696                         return TRUE;
 697         }
 698
 699         //return TRUE;
 700         return FALSE;
 701 }
 702
 703 static void
 704 interp_transform_call (TransformData *td, MonoMethod *method, MonoMethod *target_method, MonoDomain *domain, MonoGenericContext *generic_context, unsigned char *is_bb_start, int body_start_offset, MonoClass *constrained_class, gboolean readonly)
 705 {
 706         MonoImage *image = method->klass->image;
 707         MonoMethodSignature *csignature;
 708         MonoError error;
 709         int virtual = *td->ip == CEE_CALLVIRT;
 710         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 711         int i;
 712         guint32 vt_stack_used = 0;
 713         guint32 vt_res_size = 0;
 714         int op = -1;
 715         int native = 0;
 716         int is_void = 0;
 717
 718         guint32 token = read32 (td->ip + 1);
 719
 720         if (target_method == NULL) {
 721                 if (calli) {
 722                         CHECK_STACK(td, 1);
 723                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 724                         --td->sp;
 725                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 726                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 727                         else
 728                                 csignature = mono_metadata_parse_signature (image, token);
 729
 730                         if (generic_context) {
 731                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 732                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 733                         }
 734
 735                         target_method = NULL;
 736                 } else {
 737                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 738                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 739                         else
 740                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 741                         csignature = mono_method_signature (target_method);
 742
 743                         if (generic_context) {
 744                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 745                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 746                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 747                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 748                         }
 749                 }
 750         } else {
 751                 csignature = mono_method_signature (target_method);
 752         }
 753
 754         if (target_method && target_method->string_ctor) {
 755                 /* Create the real signature */
 756                 MonoMethodSignature *ctor_sig = mono_metadata_signature_dup_mempool (td->mempool, csignature);
 757                 ctor_sig->ret = &mono_defaults.string_class->byval_arg;
 758
 759                 csignature = ctor_sig;
 760         }
 761
 762         /* Intrinsics */
 763         if (target_method) {
 764                 if (target_method->klass == mono_defaults.string_class) {
 765                         if (target_method->name [0] == 'g') {
 766                                 if (strcmp (target_method->name, "get_Chars") == 0)
 767                                         op = MINT_GETCHR;
 768                                 else if (strcmp (target_method->name, "get_Length") == 0)
 769                                         op = MINT_STRLEN;
 770                         }
 771                 } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 772                         if (!strcmp (target_method->name, "get_Rank")) {
 773                                 op = MINT_ARRAY_RANK;
 774                         } else if (!strcmp (target_method->name, "get_Length")) {
 775                                 op = MINT_LDLEN;
 776                         } else if (!strcmp (target_method->name, "Address")) {
 777                                 op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 778                         }
 779                 } else if (target_method->klass->image == mono_defaults.corlib &&
 780                                    (strcmp (target_method->klass->name_space, "System.Diagnostics") == 0) &&
 781                                    (strcmp (target_method->klass->name, "Debugger") == 0)) {
 782                         if (!strcmp (target_method->name, "Break") && csignature->param_count == 0) {
 783                                 if (mini_should_insert_breakpoint (method))
 784                                         op = MINT_BREAK;
 785                         }
 786                 }
 787         }
 788
 789         if (constrained_class) {
 790                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 791                         /* Use the corresponding method from the base type to avoid boxing */
 792                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 793                         g_assert (base_type);
 794                         constrained_class = mono_class_from_mono_type (base_type);
 795                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 796                         g_assert (target_method);
 797                 }
 798         }
 799
 800         if (constrained_class) {
 801                 mono_class_setup_vtable (constrained_class);
 802 #if DEBUG_INTERP
 803                 g_print ("CONSTRAINED.CALLVIRT: %s::%s.  %s (%p) ->\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 804 #endif
 805                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 806 #if DEBUG_INTERP
 807                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 808 #endif
 809                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 810                 mono_class_setup_vtable (target_method->klass);
 811
 812                 if (constrained_class->valuetype && (target_method->klass == mono_defaults.object_class || target_method->klass == mono_defaults.enum_class->parent || target_method->klass == mono_defaults.enum_class)) {
 813                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 814                                 /* managed pointer on the stack, we need to deref that puppy */
 815                                 ADD_CODE (td, MINT_LDIND_I);
 816                                 ADD_CODE (td, csignature->param_count);
 817                         }
 818                         ADD_CODE (td, MINT_BOX);
 819                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 820                         ADD_CODE (td, csignature->param_count);
 821                 } else if (!constrained_class->valuetype) {
 822                         /* managed pointer on the stack, we need to deref that puppy */
 823                         ADD_CODE (td, MINT_LDIND_I);
 824                         ADD_CODE (td, csignature->param_count);
 825                 } else {
 826                         if (target_method->klass->valuetype) {
 827                                 /* Own method */
 828                         } else {
 829                                 /* Interface method */
 830                                 int ioffset, slot;
 831
 832                                 mono_class_setup_vtable (constrained_class);
 833                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 834                                 if (ioffset == -1)
 835                                         g_error ("type load error: constrained_class");
 836                                 slot = mono_method_get_vtable_slot (target_method);
 837                                 if (slot == -1)
 838                                         g_error ("type load error: target_method->klass");
 839                                 target_method = constrained_class->vtable [ioffset + slot];
 840
 841                                 if (target_method->klass == mono_defaults.enum_class) {
 842                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 843                                                 /* managed pointer on the stack, we need to deref that puppy */
 844                                                 ADD_CODE (td, MINT_LDIND_I);
 845                                                 ADD_CODE (td, csignature->param_count);
 846                                         }
 847                                         ADD_CODE (td, MINT_BOX);
 848                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 849                                         ADD_CODE (td, csignature->param_count);
 850                                 }
 851                         }
 852                         virtual = FALSE;
 853                 }
 854         }
 855
 856         if (target_method)
 857                 mono_class_init (target_method->klass);
 858
 859         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 860         if (!calli && op == -1 && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 861                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 862                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0 &&
 863                 !(target_method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING)) {
 864                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 865                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 866
 867                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 868                         int offset;
 869                         if (td->verbose_level)
 870                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 871
 872                         for (i = csignature->param_count - 1 + !!csignature->hasthis; i >= 0; --i)
 873                                 store_arg (td, i);
 874
 875                         ADD_CODE(td, MINT_BR_S);
 876                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 877                         ADD_CODE(td, offset);
 878                         if (!is_bb_start [td->ip + 5 - td->il_code])
 879                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 880                         td->ip += 5;
 881                         return;
 882                 } else {
 883                         /* mheader might not exist if this is a delegate invoc, etc */
 884                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 885                                 if (td->verbose_level)
 886                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 887                                 for (i = 0; i < csignature->param_count; i++) {
 888                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 889                                         ADD_CODE (td, 0);
 890                                 }
 891                                 if (csignature->hasthis) {
 892                                         if (virtual)
 893                                                 ADD_CODE(td, MINT_CKNULL);
 894                                         ADD_CODE (td, MINT_POP);
 895                                         ADD_CODE (td, 0);
 896                                 }
 897                                 td->sp -= csignature->param_count + csignature->hasthis;
 898                                 td->ip += 5;
 899                                 return;
 900                         }
 901                 }
 902         }
 903         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 904                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 905                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 906                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 907                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 908         }
 909         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 910         td->sp -= csignature->param_count + !!csignature->hasthis;
 911         for (i = 0; i < csignature->param_count; ++i) {
 912                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 913                         gint32 size;
 914                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 915                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 916                                 size = mono_class_native_size (klass, NULL);
 917                         else
 918                                 size = mono_class_value_size (klass, NULL);
 919                         size = (size + 7) & ~7;
 920                         vt_stack_used += size;
 921                 }
 922         }
 923
 924         /* need to handle typedbyref ... */
 925         if (csignature->ret->type != MONO_TYPE_VOID) {
 926                 int mt = mint_type(csignature->ret);
 927                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 928                 if (mt == MINT_TYPE_VT) {
 929                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 930                                 vt_res_size = mono_class_native_size (klass, NULL);
 931                         else
 932                                 vt_res_size = mono_class_value_size (klass, NULL);
 933                         PUSH_VT(td, vt_res_size);
 934                 }
 935                 PUSH_TYPE(td, stack_type[mt], klass);
 936         } else
 937                 is_void = TRUE;
 938
 939         if (op >= 0) {
 940                 ADD_CODE (td, op);
 941 #if SIZEOF_VOID_P == 8
 942                 if (op == MINT_LDLEN)
 943                         ADD_CODE (td, MINT_CONV_I4_I8);
 944 #endif
 945                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 946                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 947                         ADD_CODE (td, 1 + target_method->klass->rank);
 948                 }
 949         } else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
 950                 ADD_CODE(td, MINT_JIT_CALL);
 951                 ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_imethod (domain, target_method, &error)));
 952                 mono_error_assert_ok (&error);
 953         } else {
 954                 if (calli)
 955                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 956                 else if (virtual)
 957                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 958                 else
 959                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 960
 961                 if (calli) {
 962                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 963                 } else {
 964                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_imethod (domain, target_method, &error)));
 965                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 966                 }
 967         }
 968         td->ip += 5;
 969         if (vt_stack_used != 0 || vt_res_size != 0) {
 970                 ADD_CODE(td, MINT_VTRESULT);
 971                 ADD_CODE(td, vt_res_size);
 972                 WRITE32(td, &vt_stack_used);
 973                 td->vt_sp -= vt_stack_used;
 974         }
 975 }
 976
 977 static MonoClassField *
 978 interp_field_from_token (MonoMethod *method, guint32 token, MonoClass **klass, MonoGenericContext *generic_context)
 979 {
 980         MonoClassField *field = NULL;
 981         if (method->wrapper_type != MONO_WRAPPER_NONE) {
 982                 field = (MonoClassField *) mono_method_get_wrapper_data (method, token);
 983                 *klass = field->parent;
 984         } else {
 985                 MonoError error;
 986                 error_init (&error);
 987                 field = mono_field_from_token_checked (method->klass->image, token, klass, generic_context, &error);
 988                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 989         }
 990         return field;
 991 }
 992
 993 static InterpBasicBlock*
 994 get_bb (TransformData *td, InterpBasicBlock *cbb, unsigned char *ip)
 995 {
 996         int offset = ip - td->il_code;
 997         InterpBasicBlock *bb = td->offset_to_bb [offset];
 998
 999         if (!bb) {
1000                 bb = mono_mempool_alloc0 (td->mempool, sizeof (InterpBasicBlock));
1001                 bb->ip = ip;
1002                 td->offset_to_bb [offset] = bb;
1003
1004                 td->basic_blocks = g_list_append_mempool (td->mempool, td->basic_blocks, bb);
1005         }
1006
1007         if (cbb)
1008                 bb->preds = g_slist_prepend_mempool (td->mempool, bb->preds, cbb);
1009         return bb;
1010 }
1011
1012 /*
1013  * get_basic_blocks:
1014  *
1015  *   Compute the set of IL level basic blocks.
1016  */
1017 static void
1018 get_basic_blocks (TransformData *td)
1019 {
1020         guint8 *start = (guint8*)td->il_code;
1021         guint8 *end = (guint8*)td->il_code + td->code_size;
1022         guint8 *ip = start;
1023         unsigned char *target;
1024         int i;
1025         guint cli_addr;
1026         const MonoOpcode *opcode;
1027         InterpBasicBlock *cbb;
1028
1029         td->offset_to_bb = mono_mempool_alloc0 (td->mempool, sizeof (InterpBasicBlock*) * (end - start + 1));
1030         td->entry_bb = cbb = get_bb (td, NULL, start);
1031
1032         while (ip < end) {
1033                 cli_addr = ip - start;
1034                 td->offset_to_bb [cli_addr] = cbb;
1035                 i = mono_opcode_value ((const guint8 **)&ip, end);
1036                 opcode = &mono_opcodes [i];
1037                 switch (opcode->argument) {
1038                 case MonoInlineNone:
1039                         ip++;
1040                         break;
1041                 case MonoInlineString:
1042                 case MonoInlineType:
1043                 case MonoInlineField:
1044                 case MonoInlineMethod:
1045                 case MonoInlineTok:
1046                 case MonoInlineSig:
1047                 case MonoShortInlineR:
1048                 case MonoInlineI:
1049                         ip += 5;
1050                         break;
1051                 case MonoInlineVar:
1052                         ip += 3;
1053                         break;
1054                 case MonoShortInlineVar:
1055                 case MonoShortInlineI:
1056                         ip += 2;
1057                         break;
1058                 case MonoShortInlineBrTarget:
1059                         target = start + cli_addr + 2 + (signed char)ip [1];
1060                         get_bb (td, cbb, target);
1061                         ip += 2;
1062                         cbb = get_bb (td, cbb, ip);
1063                         break;
1064                 case MonoInlineBrTarget:
1065                         target = start + cli_addr + 5 + (gint32)read32 (ip + 1);
1066                         get_bb (td, cbb, target);
1067                         ip += 5;
1068                         cbb = get_bb (td, cbb, ip);
1069                         break;
1070                 case MonoInlineSwitch: {
1071                         guint32 n = read32 (ip + 1);
1072                         guint32 j;
1073                         ip += 5;
1074                         cli_addr += 5 + 4 * n;
1075                         target = start + cli_addr;
1076                         get_bb (td, cbb, target);
1077
1078                         for (j = 0; j < n; ++j) {
1079                                 target = start + cli_addr + (gint32)read32 (ip);
1080                                 get_bb (td, cbb, target);
1081                                 ip += 4;
1082                         }
1083                         cbb = get_bb (td, cbb, ip);
1084                         break;
1085                 }
1086                 case MonoInlineR:
1087                 case MonoInlineI8:
1088                         ip += 9;
1089                         break;
1090                 default:
1091                         g_assert_not_reached ();
1092                 }
1093         }
1094 }
1095
1096 static void
1097 interp_save_debug_info (InterpMethod *rtm, MonoMethodHeader *header, TransformData *td, GArray *line_numbers)
1098 {
1099         MonoDebugMethodJitInfo *dinfo;
1100         int i;
1101
1102         if (!mono_debug_enabled ())
1103                 return;
1104
1105         /*
1106          * We save the debug info in the same way the JIT does it, treating the interpreter IR as the native code.
1107          */
1108
1109         dinfo = g_new0 (MonoDebugMethodJitInfo, 1);
1110         dinfo->num_params = rtm->param_count;
1111         dinfo->params = g_new0 (MonoDebugVarInfo, dinfo->num_params);
1112         dinfo->num_locals = header->num_locals;
1113         dinfo->locals = g_new0 (MonoDebugVarInfo, header->num_locals);
1114         dinfo->code_start = (guint8*)rtm->code;
1115         dinfo->code_size = td->new_ip - td->new_code;
1116         dinfo->epilogue_begin = 0;
1117         dinfo->has_var_info = TRUE;
1118         dinfo->num_line_numbers = line_numbers->len;
1119         dinfo->line_numbers = g_new0 (MonoDebugLineNumberEntry, dinfo->num_line_numbers);
1120
1121         for (i = 0; i < dinfo->num_params; i++) {
1122                 MonoDebugVarInfo *var = &dinfo->params [i];
1123                 var->type = rtm->param_types [i];
1124         }
1125         for (i = 0; i < dinfo->num_locals; i++) {
1126                 MonoDebugVarInfo *var = &dinfo->locals [i];
1127                 var->type = header->locals [i];
1128         }
1129
1130         for (i = 0; i < dinfo->num_line_numbers; i++)
1131                 dinfo->line_numbers [i] = g_array_index (line_numbers, MonoDebugLineNumberEntry, i);
1132         mono_debug_add_method (rtm->method, dinfo, mono_domain_get ());
1133
1134         mono_debug_free_method_jit_info (dinfo);
1135 }
1136
1137 /* Same as the code in seq-points.c */
1138 static void
1139 insert_pred_seq_point (SeqPoint *last_sp, SeqPoint *sp, GSList **next)
1140 {
1141         GSList *l;
1142         int src_index = last_sp->next_offset;
1143         int dst_index = sp->next_offset;
1144
1145         /* bb->in_bb might contain duplicates */
1146         for (l = next [src_index]; l; l = l->next)
1147                 if (GPOINTER_TO_UINT (l->data) == dst_index)
1148                         break;
1149         if (!l)
1150                 next [src_index] = g_slist_append (next [src_index], GUINT_TO_POINTER (dst_index));
1151 }
1152
1153 static void
1154 recursively_make_pred_seq_points (TransformData *td, InterpBasicBlock *bb)
1155 {
1156         const gpointer MONO_SEQ_SEEN_LOOP = GINT_TO_POINTER(-1);
1157         GSList *l;
1158
1159         GArray *predecessors = g_array_new (FALSE, TRUE, sizeof (gpointer));
1160         GHashTable *seen = g_hash_table_new_full (g_direct_hash, NULL, NULL, NULL);
1161
1162         // Insert/remove sentinel into the memoize table to detect loops containing bb
1163         bb->pred_seq_points = MONO_SEQ_SEEN_LOOP;
1164
1165         for (l = bb->preds; l; l = l->next) {
1166                 InterpBasicBlock *in_bb = l->data;
1167
1168                 // This bb has the last seq point, append it and continue
1169                 if (in_bb->last_seq_point != NULL) {
1170                         predecessors = g_array_append_val (predecessors, in_bb->last_seq_point);
1171                         continue;
1172                 }
1173
1174                 // We've looped or handled this before, exit early.
1175                 // No last sequence points to find.
1176                 if (in_bb->pred_seq_points == MONO_SEQ_SEEN_LOOP)
1177                         continue;
1178
1179                 // Take sequence points from incoming basic blocks
1180
1181                 if (in_bb == td->entry_bb)
1182                         continue;
1183
1184                 if (in_bb->pred_seq_points == NULL)
1185                         recursively_make_pred_seq_points (td, in_bb);
1186
1187                 // Union sequence points with incoming bb's
1188                 for (int i=0; i < in_bb->num_pred_seq_points; i++) {
1189                         if (!g_hash_table_lookup (seen, in_bb->pred_seq_points [i])) {
1190                                 g_array_append_val (predecessors, in_bb->pred_seq_points [i]);
1191                                 g_hash_table_insert (seen, in_bb->pred_seq_points [i], (gpointer)&MONO_SEQ_SEEN_LOOP);
1192                         }
1193                 }
1194                 // predecessors = g_array_append_vals (predecessors, in_bb->pred_seq_points, in_bb->num_pred_seq_points);
1195         }
1196
1197         g_hash_table_destroy (seen);
1198
1199         if (predecessors->len != 0) {
1200                 bb->pred_seq_points = mono_mempool_alloc0 (td->mempool, sizeof (SeqPoint *) * predecessors->len);
1201                 bb->num_pred_seq_points = predecessors->len;
1202
1203                 for (int newer = 0; newer < bb->num_pred_seq_points; newer++) {
1204                         bb->pred_seq_points [newer] = g_array_index (predecessors, gpointer, newer);
1205                 }
1206         }
1207
1208         g_array_free (predecessors, TRUE);
1209 }
1210
1211 static void
1212 collect_pred_seq_points (TransformData *td, InterpBasicBlock *bb, SeqPoint *seqp, GSList **next)
1213 {
1214         // Doesn't have a last sequence point, must find from incoming basic blocks
1215         if (bb->pred_seq_points == NULL && bb != td->entry_bb)
1216                 recursively_make_pred_seq_points (td, bb);
1217
1218         for (int i = 0; i < bb->num_pred_seq_points; i++)
1219                 insert_pred_seq_point (bb->pred_seq_points [i], seqp, next);
1220
1221         return;
1222 }
1223
1224 static void
1225 save_seq_points (TransformData *td)
1226 {
1227         InterpMethod *rtm = td->rtm;
1228         GByteArray *array;
1229         int i, seq_info_size;
1230         MonoSeqPointInfo *info;
1231         MonoDomain *domain = mono_domain_get ();
1232         GSList **next = NULL;
1233         GList *bblist;
1234
1235         if (!td->gen_sdb_seq_points)
1236                 return;
1237
1238         /*
1239          * For each sequence point, compute the list of sequence points immediately
1240          * following it, this is needed to implement 'step over' in the debugger agent.
1241          * Similar to the code in mono_save_seq_point_info ().
1242          */
1243         for (i = 0; i < td->seq_points->len; ++i) {
1244                 SeqPoint *sp = g_ptr_array_index (td->seq_points, i);
1245
1246                 /* Store the seq point index here temporarily */
1247                 sp->next_offset = i;
1248         }
1249         next = mono_mempool_alloc0 (td->mempool, sizeof (GList*) * td->seq_points->len);
1250         for (bblist = td->basic_blocks; bblist; bblist = bblist->next) {
1251                 InterpBasicBlock *bb = bblist->data;
1252
1253                 GSList *bb_seq_points = g_slist_reverse (bb->seq_points);
1254                 SeqPoint *last = NULL;
1255                 for (GSList *l = bb_seq_points; l; l = l->next) {
1256                         SeqPoint *sp = l->data;
1257
1258                         if (sp->il_offset == METHOD_ENTRY_IL_OFFSET || sp->il_offset == METHOD_EXIT_IL_OFFSET)
1259                                 /* Used to implement method entry/exit events */
1260                                 continue;
1261
1262                         if (last != NULL) {
1263                                 /* Link with the previous seq point in the same bb */
1264                                 next [last->next_offset] = g_slist_append_mempool (td->mempool, next [last->next_offset], GINT_TO_POINTER (sp->next_offset));
1265                         } else {
1266                                 /* Link with the last bb in the previous bblocks */
1267                                 collect_pred_seq_points (td, bb, sp, next);
1268                         }
1269                         last = sp;
1270                 }
1271         }
1272
1273         /* Serialize the seq points into a byte array */
1274         array = g_byte_array_new ();
1275         SeqPoint zero_seq_point = {0};
1276         SeqPoint* last_seq_point = &zero_seq_point;
1277         for (i = 0; i < td->seq_points->len; ++i) {
1278                 SeqPoint *sp = (SeqPoint*)g_ptr_array_index (td->seq_points, i);
1279
1280                 sp->next_offset = 0;
1281                 if (mono_seq_point_info_add_seq_point (array, sp, last_seq_point, next [i], TRUE))
1282                         last_seq_point = sp;
1283         }
1284
1285         if (td->verbose_level) {
1286                 g_print ("\nSEQ POINT MAP FOR %s: \n", td->method->name);
1287
1288                 for (i = 0; i < td->seq_points->len; ++i) {
1289                         SeqPoint *sp = (SeqPoint*)g_ptr_array_index (td->seq_points, i);
1290                         GSList *l;
1291
1292                         if (!next [i])
1293                                 continue;
1294
1295                         g_print ("\tIL0x%x[0x%0x] ->", sp->il_offset, sp->native_offset);
1296                         for (l = next [i]; l; l = l->next) {
1297                                 int next_index = GPOINTER_TO_UINT (l->data);
1298                                 g_print (" IL0x%x", ((SeqPoint*)g_ptr_array_index (td->seq_points, next_index))->il_offset);
1299                         }
1300                         g_print ("\n");
1301                 }
1302         }
1303
1304         info = mono_seq_point_info_new (array->len, TRUE, array->data, TRUE, &seq_info_size);
1305         mono_jit_stats.allocated_seq_points_size += seq_info_size;
1306
1307         g_byte_array_free (array, TRUE);
1308
1309         mono_domain_lock (domain);
1310         g_hash_table_insert (domain_jit_info (domain)->seq_points, rtm->method, info);
1311         mono_domain_unlock (domain);
1312 }
1313
1314 static void
1315 emit_seq_point (TransformData *td, int il_offset, InterpBasicBlock *cbb, gboolean nonempty_stack)
1316 {
1317         SeqPoint *seqp;
1318
1319         seqp = mono_mempool_alloc0 (td->mempool, sizeof (SeqPoint));
1320         seqp->il_offset = il_offset;
1321         seqp->native_offset = (guint8*)td->new_ip - (guint8*)td->new_code;
1322         if (nonempty_stack)
1323                 seqp->flags |= MONO_SEQ_POINT_FLAG_NONEMPTY_STACK;
1324
1325         ADD_CODE (td, MINT_SDB_SEQ_POINT);
1326         g_ptr_array_add (td->seq_points, seqp);
1327
1328         cbb->seq_points = g_slist_prepend_mempool (td->mempool, cbb->seq_points, seqp);
1329         cbb->last_seq_point = seqp;
1330 }
1331
1332 #define BARRIER_IF_VOLATILE(td) \
1333         do { \
1334                 if (volatile_) { \
1335                         ADD_CODE (td, MINT_MONO_MEMORY_BARRIER); \
1336                         volatile_ = FALSE; \
1337                 } \
1338         } while (0)
1339
1340 static void
1341 generate (MonoMethod *method, InterpMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
1342 {
1343         MonoMethodHeader *header = mono_method_get_header (method);
1344         MonoMethodSignature *signature = mono_method_signature (method);
1345         MonoImage *image = method->klass->image;
1346         MonoDomain *domain = rtm->domain;
1347         MonoClass *constrained_class = NULL;
1348         MonoError error;
1349         int offset, mt, i, i32;
1350         gboolean readonly = FALSE;
1351         gboolean volatile_ = FALSE;
1352         MonoClass *klass;
1353         MonoClassField *field;
1354         const unsigned char *end;
1355         int new_in_start_offset;
1356         int body_start_offset;
1357         int target;
1358         guint32 token;
1359         TransformData transform_data;
1360         TransformData *td;
1361         int generating_code = 1;
1362         GArray *line_numbers;
1363         MonoDebugMethodInfo *minfo;
1364         MonoBitSet *seq_point_locs = NULL;
1365         MonoBitSet *seq_point_set_locs = NULL;
1366         gboolean sym_seq_points = FALSE;
1367         InterpBasicBlock *bb_exit = NULL;
1368         static gboolean verbose_method_inited;
1369         static char* verbose_method_name;
1370
1371         if (!verbose_method_inited) {
1372                 verbose_method_name = getenv ("MONO_VERBOSE_METHOD");
1373                 verbose_method_inited = TRUE;
1374         }
1375
1376         memset (&transform_data, 0, sizeof(transform_data));
1377         td = &transform_data;
1378
1379         td->method = method;
1380         td->rtm = rtm;
1381         td->is_bb_start = is_bb_start;
1382         td->il_code = header->code;
1383         td->code_size = header->code_size;
1384         td->header = header;
1385         td->max_code_size = td->code_size;
1386         td->new_code = (unsigned short *)g_malloc(td->max_code_size * sizeof(gushort));
1387         td->new_code_end = td->new_code + td->max_code_size;
1388         td->mempool = mono_mempool_new ();
1389         td->in_offsets = g_malloc0(header->code_size * sizeof(int));
1390         td->stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
1391         td->stack_height = g_malloc(header->code_size * sizeof(int));
1392         td->vt_stack_size = g_malloc(header->code_size * sizeof(int));
1393         td->n_data_items = 0;
1394         td->max_data_items = 0;
1395         td->data_items = NULL;
1396         td->data_hash = g_hash_table_new (NULL, NULL);
1397         td->clause_indexes = g_malloc (header->code_size * sizeof (int));
1398         td->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
1399         td->seq_points = g_ptr_array_new ();
1400         td->relocs = g_ptr_array_new ();
1401         td->verbose_level = mono_interp_traceopt;
1402         rtm->data_items = td->data_items;
1403         for (i = 0; i < header->code_size; i++) {
1404                 td->stack_height [i] = -1;
1405                 td->clause_indexes [i] = -1;
1406         }
1407
1408         if (verbose_method_name) {
1409                 const char *name = verbose_method_name;
1410
1411                 if ((strchr (name, '.') > name) || strchr (name, ':')) {
1412                         MonoMethodDesc *desc;
1413
1414                         desc = mono_method_desc_new (name, TRUE);
1415                         if (mono_method_desc_full_match (desc, method)) {
1416                                 td->verbose_level = 4;
1417                         }
1418                         mono_method_desc_free (desc);
1419                 } else {
1420                         if (strcmp (method->name, name) == 0)
1421                                 td->verbose_level = 4;
1422                 }
1423         }
1424
1425         if (td->gen_sdb_seq_points) {
1426                 get_basic_blocks (td);
1427
1428                 minfo = mono_debug_lookup_method (method);
1429
1430                 if (minfo) {
1431                         MonoSymSeqPoint *sps;
1432                         int i, n_il_offsets;
1433
1434                         mono_debug_get_seq_points (minfo, NULL, NULL, NULL, &sps, &n_il_offsets);
1435                         // FIXME: Free
1436                         seq_point_locs = mono_bitset_mem_new (mono_mempool_alloc0 (td->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
1437                         seq_point_set_locs = mono_bitset_mem_new (mono_mempool_alloc0 (td->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
1438                         sym_seq_points = TRUE;
1439
1440                         for (i = 0; i < n_il_offsets; ++i) {
1441                                 if (sps [i].il_offset < header->code_size)
1442                                         mono_bitset_set_fast (seq_point_locs, sps [i].il_offset);
1443                         }
1444                         g_free (sps);
1445                 } else if (!method->wrapper_type && !method->dynamic && mono_debug_image_has_debug_info (method->klass->image)) {
1446                         /* Methods without line number info like auto-generated property accessors */
1447                         seq_point_locs = mono_bitset_new (header->code_size, 0);
1448                         seq_point_set_locs = mono_bitset_new (header->code_size, 0);
1449                         sym_seq_points = TRUE;
1450                 }
1451         }
1452
1453         td->new_ip = td->new_code;
1454         td->last_new_ip = NULL;
1455
1456         td->stack = g_malloc0 ((header->max_stack + 1) * sizeof (td->stack [0]));
1457         td->sp = td->stack;
1458         td->max_stack_height = 0;
1459
1460         line_numbers = g_array_new (FALSE, TRUE, sizeof (MonoDebugLineNumberEntry));
1461
1462         for (i = 0; i < header->num_clauses; i++) {
1463                 MonoExceptionClause *c = header->clauses + i;
1464                 td->stack_height [c->handler_offset] = 0;
1465                 td->vt_stack_size [c->handler_offset] = 0;
1466                 td->is_bb_start [c->handler_offset] = 1;
1467
1468                 td->stack_height [c->handler_offset] = 1;
1469                 td->stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
1470                 td->stack_state [c->handler_offset][0].type = STACK_TYPE_O;
1471                 td->stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
1472
1473                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
1474                         td->stack_height [c->data.filter_offset] = 0;
1475                         td->vt_stack_size [c->data.filter_offset] = 0;
1476                         td->is_bb_start [c->data.filter_offset] = 1;
1477
1478                         td->stack_height [c->data.filter_offset] = 1;
1479                         td->stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
1480                         td->stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
1481                         td->stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
1482                 }
1483
1484                 for (int j = c->handler_offset; j < c->handler_offset + c->handler_len; ++j) {
1485                         if (td->clause_indexes [j] == -1)
1486                                 td->clause_indexes [j] = i;
1487                 }
1488         }
1489
1490         td->ip = header->code;
1491         end = td->ip + header->code_size;
1492
1493         if (td->verbose_level) {
1494                 char *tmp = mono_disasm_code (NULL, method, td->ip, end);
1495                 char *name = mono_method_full_name (method, TRUE);
1496                 g_print ("Method %s, original code:\n", name);
1497                 g_print ("%s\n", tmp);
1498                 g_free (tmp);
1499                 g_free (name);
1500         }
1501
1502         if (signature->hasthis)
1503                 store_inarg (td, 0);
1504         for (i = 0; i < signature->param_count; i++)
1505                 store_inarg (td, i + !!signature->hasthis);
1506
1507         body_start_offset = td->new_ip - td->new_code;
1508
1509         for (i = 0; i < header->num_locals; i++) {
1510                 int mt = mint_type(header->locals [i]);
1511                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1512                         ADD_CODE(td, MINT_INITLOCALS);
1513                         break;
1514                 }
1515         }
1516
1517         if (sym_seq_points) {
1518                 InterpBasicBlock *cbb = td->offset_to_bb [0];
1519                 g_assert (cbb);
1520                 emit_seq_point (td, METHOD_ENTRY_IL_OFFSET, cbb, FALSE);
1521         }
1522
1523         while (td->ip < end) {
1524                 int in_offset;
1525
1526                 g_assert (td->sp >= td->stack);
1527                 g_assert (td->vt_sp < 0x10000000);
1528                 in_offset = td->ip - header->code;
1529                 td->in_offsets [in_offset] = td->new_ip - td->new_code;
1530                 new_in_start_offset = td->new_ip - td->new_code;
1531                 td->in_start = td->ip;
1532
1533                 MonoDebugLineNumberEntry lne;
1534                 lne.native_offset = (guint8*)td->new_ip - (guint8*)td->new_code;
1535                 lne.il_offset = in_offset;
1536                 g_array_append_val (line_numbers, lne);
1537
1538                 if (td->stack_height [in_offset] >= 0) {
1539                         g_assert (is_bb_start [in_offset]);
1540                         if (td->stack_height [in_offset] > 0)
1541                                 memcpy (td->stack, td->stack_state [in_offset], td->stack_height [in_offset] * sizeof(td->stack [0]));
1542                         td->sp = td->stack + td->stack_height [in_offset];
1543                         td->vt_sp = td->vt_stack_size [in_offset];
1544                 }
1545                 if (is_bb_start [in_offset]) {
1546                         generating_code = 1;
1547                 }
1548                 if (!generating_code) {
1549                         while (td->ip < end && !is_bb_start [td->ip - td->il_code])
1550                                 ++td->ip;
1551                         continue;
1552                 }
1553                 if (td->verbose_level > 1) {
1554                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1555                                 td->ip - td->il_code,
1556                                 td->is_bb_start [td->ip - td->il_code] == 3 ? "<>" :
1557                                 td->is_bb_start [td->ip - td->il_code] == 2 ? "< " :
1558                                 td->is_bb_start [td->ip - td->il_code] == 1 ? " >" : "  ",
1559                                 mono_opcode_name (*td->ip), td->new_ip - td->new_code, td->sp - td->stack,
1560                                 td->sp > td->stack ? stack_type_string [td->sp [-1].type] : "  ",
1561                                 (td->sp > td->stack && (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_VT)) ? (td->sp [-1].klass == NULL ? "?" : td->sp [-1].klass->name) : "",
1562                                 td->vt_sp, td->max_vt_sp);
1563                 }
1564
1565                 if (sym_seq_points && mono_bitset_test_fast (seq_point_locs, td->ip - header->code)) {
1566                         InterpBasicBlock *cbb = td->offset_to_bb [td->ip - header->code];
1567                         g_assert (cbb);
1568
1569                         /*
1570                          * Make methods interruptable at the beginning, and at the targets of
1571                          * backward branches.
1572                          */
1573                         if (in_offset == 0 || g_slist_length (cbb->preds) > 1)
1574                                 ADD_CODE (td, MINT_SDB_INTR_LOC);
1575
1576                         emit_seq_point (td, in_offset, cbb, FALSE);
1577
1578                         mono_bitset_set_fast (seq_point_set_locs, td->ip - header->code);
1579                 }
1580
1581                 if (sym_seq_points)
1582                         bb_exit = td->offset_to_bb [td->ip - header->code];
1583
1584                 switch (*td->ip) {
1585                 case CEE_NOP:
1586                         /* lose it */
1587                         ++td->ip;
1588                         break;
1589                 case CEE_BREAK:
1590                         SIMPLE_OP(td, MINT_BREAK);
1591                         break;
1592                 case CEE_LDARG_0:
1593                 case CEE_LDARG_1:
1594                 case CEE_LDARG_2:
1595                 case CEE_LDARG_3:
1596                         load_arg (td, *td->ip - CEE_LDARG_0);
1597                         ++td->ip;
1598                         break;
1599                 case CEE_LDLOC_0:
1600                 case CEE_LDLOC_1:
1601                 case CEE_LDLOC_2:
1602                 case CEE_LDLOC_3:
1603                         load_local (td, *td->ip - CEE_LDLOC_0);
1604                         ++td->ip;
1605                         break;
1606                 case CEE_STLOC_0:
1607                 case CEE_STLOC_1:
1608                 case CEE_STLOC_2:
1609                 case CEE_STLOC_3:
1610                         store_local (td, *td->ip - CEE_STLOC_0);
1611                         ++td->ip;
1612                         break;
1613                 case CEE_LDARG_S:
1614                         load_arg (td, ((guint8 *)td->ip)[1]);
1615                         td->ip += 2;
1616                         break;
1617                 case CEE_LDARGA_S: {
1618                         /* NOTE: n includes this */
1619                         int n = ((guint8 *) td->ip) [1];
1620                         ADD_CODE (td, MINT_LDARGA);
1621                         ADD_CODE (td, td->rtm->arg_offsets [n]);
1622                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
1623                         td->ip += 2;
1624                         break;
1625                 }
1626                 case CEE_STARG_S:
1627                         store_arg (td, ((guint8 *)td->ip)[1]);
1628                         td->ip += 2;
1629                         break;
1630                 case CEE_LDLOC_S:
1631                         load_local (td, ((guint8 *)td->ip)[1]);
1632                         td->ip += 2;
1633                         break;
1634                 case CEE_LDLOCA_S:
1635                         ADD_CODE(td, MINT_LDLOCA_S);
1636                         ADD_CODE(td, td->rtm->local_offsets [((guint8 *)td->ip)[1]]);
1637                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
1638                         td->ip += 2;
1639                         break;
1640                 case CEE_STLOC_S:
1641                         store_local (td, ((guint8 *)td->ip)[1]);
1642                         td->ip += 2;
1643                         break;
1644                 case CEE_LDNULL:
1645                         SIMPLE_OP(td, MINT_LDNULL);
1646                         PUSH_TYPE(td, STACK_TYPE_O, NULL);
1647                         break;
1648                 case CEE_LDC_I4_M1:
1649                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1650                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1651                         break;
1652                 case CEE_LDC_I4_0:
1653                         if (!td->is_bb_start[td->ip + 1 - td->il_code] && td->ip [1] == 0xfe && td->ip [2] == CEE_CEQ &&
1654                                 td->sp > td->stack && td->sp [-1].type == STACK_TYPE_I4) {
1655                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1656                                 td->ip += 2;
1657                         } else {
1658                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1659                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1660                         }
1661                         break;
1662                 case CEE_LDC_I4_1:
1663                         if (!td->is_bb_start[td->ip + 1 - td->il_code] &&
1664                                 (td->ip [1] == CEE_ADD || td->ip [1] == CEE_SUB) && td->sp [-1].type == STACK_TYPE_I4) {
1665                                 ADD_CODE(td, td->ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1666                                 td->ip += 2;
1667                         } else {
1668                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1669                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1670                         }
1671                         break;
1672                 case CEE_LDC_I4_2:
1673                 case CEE_LDC_I4_3:
1674                 case CEE_LDC_I4_4:
1675                 case CEE_LDC_I4_5:
1676                 case CEE_LDC_I4_6:
1677                 case CEE_LDC_I4_7:
1678                 case CEE_LDC_I4_8:
1679                         SIMPLE_OP(td, (*td->ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1680                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1681                         break;
1682                 case CEE_LDC_I4_S:
1683                         ADD_CODE(td, MINT_LDC_I4_S);
1684                         ADD_CODE(td, ((gint8 *) td->ip) [1]);
1685                         td->ip += 2;
1686                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1687                         break;
1688                 case CEE_LDC_I4:
1689                         i32 = read32 (td->ip + 1);
1690                         ADD_CODE(td, MINT_LDC_I4);
1691                         WRITE32(td, &i32);
1692                         td->ip += 5;
1693                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1694                         break;
1695                 case CEE_LDC_I8: {
1696                         gint64 val = read64 (td->ip + 1);
1697                         ADD_CODE(td, MINT_LDC_I8);
1698                         WRITE64(td, &val);
1699                         td->ip += 9;
1700                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I8);
1701                         break;
1702                 }
1703                 case CEE_LDC_R4: {
1704                         float val;
1705                         readr4 (td->ip + 1, &val);
1706                         ADD_CODE(td, MINT_LDC_R4);
1707                         WRITE32(td, &val);
1708                         td->ip += 5;
1709                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_R8);
1710                         break;
1711                 }
1712                 case CEE_LDC_R8: {
1713                         double val;
1714                         readr8 (td->ip + 1, &val);
1715                         ADD_CODE(td, MINT_LDC_R8);
1716                         WRITE64(td, &val);
1717                         td->ip += 9;
1718                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_R8);
1719                         break;
1720                 }
1721                 case CEE_DUP: {
1722                         int type = td->sp [-1].type;
1723                         MonoClass *klass = td->sp [-1].klass;
1724                         if (td->sp [-1].type == STACK_TYPE_VT) {
1725                                 gint32 size = mono_class_value_size (klass, NULL);
1726                                 PUSH_VT(td, size);
1727                                 ADD_CODE(td, MINT_DUP_VT);
1728                                 WRITE32(td, &size);
1729                                 td->ip ++;
1730                         } else
1731                                 SIMPLE_OP(td, MINT_DUP);
1732                         PUSH_TYPE(td, type, klass);
1733                         break;
1734                 }
1735                 case CEE_POP:
1736                         CHECK_STACK(td, 1);
1737                         SIMPLE_OP(td, MINT_POP);
1738                         ADD_CODE (td, 0);
1739                         if (td->sp [-1].type == STACK_TYPE_VT) {
1740                                 int size = mono_class_value_size (td->sp [-1].klass, NULL);
1741                                 size = (size + 7) & ~7;
1742                                 ADD_CODE(td, MINT_VTRESULT);
1743                                 ADD_CODE(td, 0);
1744                                 WRITE32(td, &size);
1745                                 td->vt_sp -= size;
1746                         }
1747                         --td->sp;
1748                         break;
1749                 case CEE_JMP: {
1750                         MonoMethod *m;
1751                         if (td->sp > td->stack)
1752                                 g_warning ("CEE_JMP: stack must be empty");
1753                         token = read32 (td->ip + 1);
1754                         m = mono_get_method_full (image, token, NULL, generic_context);
1755                         ADD_CODE (td, MINT_JMP);
1756                         ADD_CODE (td, get_data_item_index (td, mono_interp_get_imethod (domain, m, &error)));
1757                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1758                         td->ip += 5;
1759                         break;
1760                 }
1761                 case CEE_CALLVIRT: /* Fall through */
1762                 case CEE_CALLI:    /* Fall through */
1763                 case CEE_CALL: {
1764                         gboolean need_seq_point = FALSE;
1765
1766                         if (sym_seq_points && !mono_bitset_test_fast (seq_point_locs, td->ip + 5 - header->code))
1767                                 need_seq_point = TRUE;
1768
1769                         interp_transform_call (td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1770
1771                         if (need_seq_point) {
1772                                 InterpBasicBlock *cbb = td->offset_to_bb [td->ip - header->code];
1773                                 g_assert (cbb);
1774
1775                                 emit_seq_point (td, td->ip - header->code, cbb, TRUE);
1776                         }
1777
1778                         constrained_class = NULL;
1779                         readonly = FALSE;
1780                         break;
1781                 }
1782                 case CEE_RET: {
1783                         int vt_size = 0;
1784                         if (signature->ret->type != MONO_TYPE_VOID) {
1785                                 --td->sp;
1786                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1787                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1788                                         vt_size = mono_class_value_size (klass, NULL);
1789                                         vt_size = (vt_size + 7) & ~7;
1790                                 }
1791                         }
1792                         if (td->sp > td->stack)
1793                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td->method->klass->name, td->method->name, td->sp - td->stack);
1794                         if (td->vt_sp != vt_size)
1795                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td->method->klass->name, td->method->name, td->vt_sp, vt_size);
1796
1797                         if (sym_seq_points) {
1798                                 InterpBasicBlock *cbb = td->offset_to_bb [td->ip - header->code];
1799                                 g_assert (cbb);
1800                                 emit_seq_point (td, METHOD_EXIT_IL_OFFSET, bb_exit, FALSE);
1801                         }
1802
1803                         if (vt_size == 0)
1804                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1805                         else {
1806                                 ADD_CODE(td, MINT_RET_VT);
1807                                 WRITE32(td, &vt_size);
1808                                 ++td->ip;
1809                         }
1810                         generating_code = 0;
1811                         break;
1812                 }
1813                 case CEE_BR:
1814                         handle_branch (td, MINT_BR_S, MINT_BR, 5 + read32 (td->ip + 1));
1815                         td->ip += 5;
1816                         generating_code = 0;
1817                         break;
1818                 case CEE_BR_S:
1819                         handle_branch (td, MINT_BR_S, MINT_BR, 2 + (gint8)td->ip [1]);
1820                         td->ip += 2;
1821                         generating_code = 0;
1822                         break;
1823                 case CEE_BRFALSE:
1824                         one_arg_branch (td, MINT_BRFALSE_I4, 5 + read32 (td->ip + 1));
1825                         td->ip += 5;
1826                         break;
1827                 case CEE_BRFALSE_S:
1828                         one_arg_branch (td, MINT_BRFALSE_I4, 2 + (gint8)td->ip [1]);
1829                         td->ip += 2;
1830                         break;
1831                 case CEE_BRTRUE:
1832                         one_arg_branch (td, MINT_BRTRUE_I4, 5 + read32 (td->ip + 1));
1833                         td->ip += 5;
1834                         break;
1835                 case CEE_BRTRUE_S:
1836                         one_arg_branch (td, MINT_BRTRUE_I4, 2 + (gint8)td->ip [1]);
1837                         td->ip += 2;
1838                         break;
1839                 case CEE_BEQ:
1840                         two_arg_branch (td, MINT_BEQ_I4, 5 + read32 (td->ip + 1));
1841                         td->ip += 5;
1842                         break;
1843                 case CEE_BEQ_S:
1844                         two_arg_branch (td, MINT_BEQ_I4, 2 + (gint8) td->ip [1]);
1845                         td->ip += 2;
1846                         break;
1847                 case CEE_BGE:
1848                         two_arg_branch (td, MINT_BGE_I4, 5 + read32 (td->ip + 1));
1849                         td->ip += 5;
1850                         break;
1851                 case CEE_BGE_S:
1852                         two_arg_branch (td, MINT_BGE_I4, 2 + (gint8) td->ip [1]);
1853                         td->ip += 2;
1854                         break;
1855                 case CEE_BGT:
1856                         two_arg_branch (td, MINT_BGT_I4, 5 + read32 (td->ip + 1));
1857                         td->ip += 5;
1858                         break;
1859                 case CEE_BGT_S:
1860                         two_arg_branch (td, MINT_BGT_I4, 2 + (gint8) td->ip [1]);
1861                         td->ip += 2;
1862                         break;
1863                 case CEE_BLT:
1864                         two_arg_branch (td, MINT_BLT_I4, 5 + read32 (td->ip + 1));
1865                         td->ip += 5;
1866                         break;
1867                 case CEE_BLT_S:
1868                         two_arg_branch (td, MINT_BLT_I4, 2 + (gint8) td->ip [1]);
1869                         td->ip += 2;
1870                         break;
1871                 case CEE_BLE:
1872                         two_arg_branch (td, MINT_BLE_I4, 5 + read32 (td->ip + 1));
1873                         td->ip += 5;
1874                         break;
1875                 case CEE_BLE_S:
1876                         two_arg_branch (td, MINT_BLE_I4, 2 + (gint8) td->ip [1]);
1877                         td->ip += 2;
1878                         break;
1879                 case CEE_BNE_UN:
1880                         two_arg_branch (td, MINT_BNE_UN_I4, 5 + read32 (td->ip + 1));
1881                         td->ip += 5;
1882                         break;
1883                 case CEE_BNE_UN_S:
1884                         two_arg_branch (td, MINT_BNE_UN_I4, 2 + (gint8) td->ip [1]);
1885                         td->ip += 2;
1886                         break;
1887                 case CEE_BGE_UN:
1888                         two_arg_branch (td, MINT_BGE_UN_I4, 5 + read32 (td->ip + 1));
1889                         td->ip += 5;
1890                         break;
1891                 case CEE_BGE_UN_S:
1892                         two_arg_branch (td, MINT_BGE_UN_I4, 2 + (gint8) td->ip [1]);
1893                         td->ip += 2;
1894                         break;
1895                 case CEE_BGT_UN:
1896                         two_arg_branch (td, MINT_BGT_UN_I4, 5 + read32 (td->ip + 1));
1897                         td->ip += 5;
1898                         break;
1899                 case CEE_BGT_UN_S:
1900                         two_arg_branch (td, MINT_BGT_UN_I4, 2 + (gint8) td->ip [1]);
1901                         td->ip += 2;
1902                         break;
1903                 case CEE_BLE_UN:
1904                         two_arg_branch (td, MINT_BLE_UN_I4, 5 + read32 (td->ip + 1));
1905                         td->ip += 5;
1906                         break;
1907                 case CEE_BLE_UN_S:
1908                         two_arg_branch (td, MINT_BLE_UN_I4, 2 + (gint8) td->ip [1]);
1909                         td->ip += 2;
1910                         break;
1911                 case CEE_BLT_UN:
1912                         two_arg_branch (td, MINT_BLT_UN_I4, 5 + read32 (td->ip + 1));
1913                         td->ip += 5;
1914                         break;
1915                 case CEE_BLT_UN_S:
1916                         two_arg_branch (td, MINT_BLT_UN_I4, 2 + (gint8) td->ip [1]);
1917                         td->ip += 2;
1918                         break;
1919                 case CEE_SWITCH: {
1920                         guint32 n;
1921                         const unsigned char *next_ip;
1922                         ++td->ip;
1923                         n = read32 (td->ip);
1924                         ADD_CODE (td, MINT_SWITCH);
1925                         WRITE32 (td, &n);
1926                         td->ip += 4;
1927                         next_ip = td->ip + n * 4;
1928                         --td->sp;
1929                         int stack_height = td->sp - td->stack;
1930                         for (i = 0; i < n; i++) {
1931                                 offset = read32 (td->ip);
1932                                 target = next_ip - td->il_code + offset;
1933                                 if (offset < 0) {
1934 #if DEBUG_INTERP
1935                                         if (stack_height > 0 && stack_height != td->stack_height [target])
1936                                                 g_warning ("SWITCH with back branch and non-empty stack");
1937 #endif
1938                                         target = td->in_offsets [target] - (td->new_ip - td->new_code);
1939                                 } else {
1940                                         td->stack_height [target] = stack_height;
1941                                         td->vt_stack_size [target] = td->vt_sp;
1942                                         if (stack_height > 0)
1943                                                 td->stack_state [target] = g_memdup (td->stack, stack_height * sizeof (td->stack [0]));
1944
1945                                         Reloc *reloc = mono_mempool_alloc0 (td->mempool, sizeof (Reloc));
1946                                         reloc->type = RELOC_SWITCH;
1947                                         reloc->offset = td->new_ip - td->new_code;
1948                                         reloc->target = target;
1949                                         g_ptr_array_add (td->relocs, reloc);
1950                                         target = 0xffff;
1951                                 }
1952                                 WRITE32 (td, &target);
1953                                 td->ip += 4;
1954                         }
1955                         break;
1956                 }
1957                 case CEE_LDIND_I1:
1958                         CHECK_STACK (td, 1);
1959                         SIMPLE_OP (td, MINT_LDIND_I1);
1960                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1961                         BARRIER_IF_VOLATILE (td);
1962                         break;
1963                 case CEE_LDIND_U1:
1964                         CHECK_STACK (td, 1);
1965                         SIMPLE_OP (td, MINT_LDIND_U1);
1966                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1967                         BARRIER_IF_VOLATILE (td);
1968                         break;
1969                 case CEE_LDIND_I2:
1970                         CHECK_STACK (td, 1);
1971                         SIMPLE_OP (td, MINT_LDIND_I2);
1972                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1973                         BARRIER_IF_VOLATILE (td);
1974                         break;
1975                 case CEE_LDIND_U2:
1976                         CHECK_STACK (td, 1);
1977                         SIMPLE_OP (td, MINT_LDIND_U2);
1978                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1979                         BARRIER_IF_VOLATILE (td);
1980                         break;
1981                 case CEE_LDIND_I4:
1982                         CHECK_STACK (td, 1);
1983                         SIMPLE_OP (td, MINT_LDIND_I4);
1984                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1985                         BARRIER_IF_VOLATILE (td);
1986                         break;
1987                 case CEE_LDIND_U4:
1988                         CHECK_STACK (td, 1);
1989                         SIMPLE_OP (td, MINT_LDIND_U4);
1990                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1991                         BARRIER_IF_VOLATILE (td);
1992                         break;
1993                 case CEE_LDIND_I8:
1994                         CHECK_STACK (td, 1);
1995                         SIMPLE_OP (td, MINT_LDIND_I8);
1996                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
1997                         BARRIER_IF_VOLATILE (td);
1998                         break;
1999                 case CEE_LDIND_I:
2000                         CHECK_STACK (td, 1);
2001                         SIMPLE_OP (td, MINT_LDIND_I);
2002                         ADD_CODE (td, 0);
2003                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2004                         BARRIER_IF_VOLATILE (td);
2005                         break;
2006                 case CEE_LDIND_R4:
2007                         CHECK_STACK (td, 1);
2008                         SIMPLE_OP (td, MINT_LDIND_R4);
2009                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2010                         BARRIER_IF_VOLATILE (td);
2011                         break;
2012                 case CEE_LDIND_R8:
2013                         CHECK_STACK (td, 1);
2014                         SIMPLE_OP (td, MINT_LDIND_R8);
2015                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2016                         BARRIER_IF_VOLATILE (td);
2017                         break;
2018                 case CEE_LDIND_REF:
2019                         CHECK_STACK (td, 1);
2020                         SIMPLE_OP (td, MINT_LDIND_REF);
2021                         BARRIER_IF_VOLATILE (td);
2022                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_O);
2023                         break;
2024                 case CEE_STIND_REF:
2025                         CHECK_STACK (td, 2);
2026                         BARRIER_IF_VOLATILE (td);
2027                         SIMPLE_OP (td, MINT_STIND_REF);
2028                         td->sp -= 2;
2029                         break;
2030                 case CEE_STIND_I1:
2031                         CHECK_STACK (td, 2);
2032                         BARRIER_IF_VOLATILE (td);
2033                         SIMPLE_OP (td, MINT_STIND_I1);
2034                         td->sp -= 2;
2035                         break;
2036                 case CEE_STIND_I2:
2037                         CHECK_STACK (td, 2);
2038                         BARRIER_IF_VOLATILE (td);
2039                         SIMPLE_OP (td, MINT_STIND_I2);
2040                         td->sp -= 2;
2041                         break;
2042                 case CEE_STIND_I4:
2043                         CHECK_STACK (td, 2);
2044                         BARRIER_IF_VOLATILE (td);
2045                         SIMPLE_OP (td, MINT_STIND_I4);
2046                         td->sp -= 2;
2047                         break;
2048                 case CEE_STIND_I:
2049                         CHECK_STACK (td, 2);
2050                         BARRIER_IF_VOLATILE (td);
2051                         SIMPLE_OP (td, MINT_STIND_I);
2052                         td->sp -= 2;
2053                         break;
2054                 case CEE_STIND_I8:
2055                         CHECK_STACK (td, 2);
2056                         BARRIER_IF_VOLATILE (td);
2057                         SIMPLE_OP (td, MINT_STIND_I8);
2058                         td->sp -= 2;
2059                         break;
2060                 case CEE_STIND_R4:
2061                         CHECK_STACK (td, 2);
2062                         BARRIER_IF_VOLATILE (td);
2063                         SIMPLE_OP (td, MINT_STIND_R4);
2064                         td->sp -= 2;
2065                         break;
2066                 case CEE_STIND_R8:
2067                         CHECK_STACK (td, 2);
2068                         BARRIER_IF_VOLATILE (td);
2069                         SIMPLE_OP (td, MINT_STIND_R8);
2070                         td->sp -= 2;
2071                         break;
2072                 case CEE_ADD:
2073                         binary_arith_op(td, MINT_ADD_I4);
2074                         ++td->ip;
2075                         break;
2076                 case CEE_SUB:
2077                         binary_arith_op(td, MINT_SUB_I4);
2078                         ++td->ip;
2079                         break;
2080                 case CEE_MUL:
2081                         binary_arith_op(td, MINT_MUL_I4);
2082                         ++td->ip;
2083                         break;
2084                 case CEE_DIV:
2085                         binary_arith_op(td, MINT_DIV_I4);
2086                         ++td->ip;
2087                         break;
2088                 case CEE_DIV_UN:
2089                         binary_arith_op(td, MINT_DIV_UN_I4);
2090                         ++td->ip;
2091                         break;
2092                 case CEE_REM:
2093                         binary_arith_op (td, MINT_REM_I4);
2094                         ++td->ip;
2095                         break;
2096                 case CEE_REM_UN:
2097                         binary_arith_op (td, MINT_REM_UN_I4);
2098                         ++td->ip;
2099                         break;
2100                 case CEE_AND:
2101                         binary_arith_op (td, MINT_AND_I4);
2102                         ++td->ip;
2103                         break;
2104                 case CEE_OR:
2105                         binary_arith_op (td, MINT_OR_I4);
2106                         ++td->ip;
2107                         break;
2108                 case CEE_XOR:
2109                         binary_arith_op (td, MINT_XOR_I4);
2110                         ++td->ip;
2111                         break;
2112                 case CEE_SHL:
2113                         shift_op (td, MINT_SHL_I4);
2114                         ++td->ip;
2115                         break;
2116                 case CEE_SHR:
2117                         shift_op (td, MINT_SHR_I4);
2118                         ++td->ip;
2119                         break;
2120                 case CEE_SHR_UN:
2121                         shift_op (td, MINT_SHR_UN_I4);
2122                         ++td->ip;
2123                         break;
2124                 case CEE_NEG:
2125                         unary_arith_op (td, MINT_NEG_I4);
2126                         ++td->ip;
2127                         break;
2128                 case CEE_NOT:
2129                         unary_arith_op (td, MINT_NOT_I4);
2130                         ++td->ip;
2131                         break;
2132                 case CEE_CONV_U1:
2133                         CHECK_STACK (td, 1);
2134                         switch (td->sp [-1].type) {
2135                         case STACK_TYPE_R8:
2136                                 ADD_CODE(td, MINT_CONV_U1_R8);
2137                                 break;
2138                         case STACK_TYPE_I4:
2139                                 ADD_CODE(td, MINT_CONV_U1_I4);
2140                                 break;
2141                         case STACK_TYPE_I8:
2142                                 ADD_CODE(td, MINT_CONV_U1_I8);
2143                                 break;
2144                         default:
2145                                 g_assert_not_reached ();
2146                         }
2147                         ++td->ip;
2148                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2149                         break;
2150                 case CEE_CONV_I1:
2151                         CHECK_STACK (td, 1);
2152                         switch (td->sp [-1].type) {
2153                         case STACK_TYPE_R8:
2154                                 ADD_CODE(td, MINT_CONV_I1_R8);
2155                                 break;
2156                         case STACK_TYPE_I4:
2157                                 ADD_CODE(td, MINT_CONV_I1_I4);
2158                                 break;
2159                         case STACK_TYPE_I8:
2160                                 ADD_CODE(td, MINT_CONV_I1_I8);
2161                                 break;
2162                         default:
2163                                 g_assert_not_reached ();
2164                         }
2165                         ++td->ip;
2166                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2167                         break;
2168                 case CEE_CONV_U2:
2169                         CHECK_STACK (td, 1);
2170                         switch (td->sp [-1].type) {
2171                         case STACK_TYPE_R8:
2172                                 ADD_CODE(td, MINT_CONV_U2_R8);
2173                                 break;
2174                         case STACK_TYPE_I4:
2175                                 ADD_CODE(td, MINT_CONV_U2_I4);
2176                                 break;
2177                         case STACK_TYPE_I8:
2178                                 ADD_CODE(td, MINT_CONV_U2_I8);
2179                                 break;
2180                         default:
2181                                 g_assert_not_reached ();
2182                         }
2183                         ++td->ip;
2184                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2185                         break;
2186                 case CEE_CONV_I2:
2187                         CHECK_STACK (td, 1);
2188                         switch (td->sp [-1].type) {
2189                         case STACK_TYPE_R8:
2190                                 ADD_CODE(td, MINT_CONV_I2_R8);
2191                                 break;
2192                         case STACK_TYPE_I4:
2193                                 ADD_CODE(td, MINT_CONV_I2_I4);
2194                                 break;
2195                         case STACK_TYPE_I8:
2196                                 ADD_CODE(td, MINT_CONV_I2_I8);
2197                                 break;
2198                         default:
2199                                 g_assert_not_reached ();
2200                         }
2201                         ++td->ip;
2202                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2203                         break;
2204                 case CEE_CONV_U:
2205                         CHECK_STACK (td, 1);
2206                         switch (td->sp [-1].type) {
2207                         case STACK_TYPE_R8:
2208 #if SIZEOF_VOID_P == 4
2209                                 ADD_CODE(td, MINT_CONV_U4_R8);
2210 #else
2211                                 ADD_CODE(td, MINT_CONV_U8_R8);
2212 #endif
2213                                 break;
2214                         case STACK_TYPE_I4:
2215 #if SIZEOF_VOID_P == 8
2216                                 ADD_CODE(td, MINT_CONV_U8_I4);
2217 #endif
2218                                 break;
2219                         case STACK_TYPE_I8:
2220 #if SIZEOF_VOID_P == 4
2221                                 ADD_CODE(td, MINT_CONV_U4_I8);
2222 #endif
2223                                 break;
2224                         case STACK_TYPE_MP:
2225                                 break;
2226                         default:
2227                                 g_assert_not_reached ();
2228                         }
2229                         ++td->ip;
2230                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2231                         break;
2232                 case CEE_CONV_I:
2233                         CHECK_STACK (td, 1);
2234                         switch (td->sp [-1].type) {
2235                         case STACK_TYPE_R8:
2236 #if SIZEOF_VOID_P == 8
2237                                 ADD_CODE(td, MINT_CONV_I8_R8);
2238 #else
2239                                 ADD_CODE(td, MINT_CONV_I4_R8);
2240 #endif
2241                                 break;
2242                         case STACK_TYPE_I4:
2243 #if SIZEOF_VOID_P == 8
2244                                 ADD_CODE(td, MINT_CONV_I8_I4);
2245 #endif
2246                                 break;
2247                         case STACK_TYPE_O:
2248                                 break;
2249                         case STACK_TYPE_MP:
2250                                 break;
2251                         case STACK_TYPE_I8:
2252 #if SIZEOF_VOID_P == 4
2253                                 ADD_CODE(td, MINT_CONV_I4_I8);
2254 #endif
2255                                 break;
2256                         default:
2257                                 g_assert_not_reached ();
2258                         }
2259                         ++td->ip;
2260                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2261                         break;
2262                 case CEE_CONV_U4:
2263                         CHECK_STACK (td, 1);
2264                         switch (td->sp [-1].type) {
2265                         case STACK_TYPE_R8:
2266                                 ADD_CODE(td, MINT_CONV_U4_R8);
2267                                 break;
2268                         case STACK_TYPE_I4:
2269                                 break;
2270                         case STACK_TYPE_I8:
2271                                 ADD_CODE(td, MINT_CONV_U4_I8);
2272                                 break;
2273                         case STACK_TYPE_MP:
2274 #if SIZEOF_VOID_P == 8
2275                                 ADD_CODE(td, MINT_CONV_U4_I8);
2276 #endif
2277                                 break;
2278                         default:
2279                                 g_assert_not_reached ();
2280                         }
2281                         ++td->ip;
2282                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2283                         break;
2284                 case CEE_CONV_I4:
2285                         CHECK_STACK (td, 1);
2286                         switch (td->sp [-1].type) {
2287                         case STACK_TYPE_R8:
2288                                 ADD_CODE(td, MINT_CONV_I4_R8);
2289                                 break;
2290                         case STACK_TYPE_I4:
2291                                 break;
2292                         case STACK_TYPE_I8:
2293                                 ADD_CODE(td, MINT_CONV_I4_I8);
2294                                 break;
2295                         case STACK_TYPE_MP:
2296 #if SIZEOF_VOID_P == 8
2297                                 ADD_CODE(td, MINT_CONV_I4_I8);
2298 #endif
2299                                 break;
2300                         default:
2301                                 g_assert_not_reached ();
2302                         }
2303                         ++td->ip;
2304                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2305                         break;
2306                 case CEE_CONV_I8:
2307                         CHECK_STACK (td, 1);
2308                         switch (td->sp [-1].type) {
2309                         case STACK_TYPE_R8:
2310                                 ADD_CODE(td, MINT_CONV_I8_R8);
2311                                 break;
2312                         case STACK_TYPE_I4:
2313                                 ADD_CODE(td, MINT_CONV_I8_I4);
2314                                 break;
2315                         case STACK_TYPE_I8:
2316                                 break;
2317                         case STACK_TYPE_MP:
2318 #if SIZEOF_VOID_P == 4
2319                                 ADD_CODE(td, MINT_CONV_I8_I4);
2320 #endif
2321                                 break;
2322                         default:
2323                                 g_assert_not_reached ();
2324                         }
2325                         ++td->ip;
2326                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2327                         break;
2328                 case CEE_CONV_R4:
2329                         CHECK_STACK (td, 1);
2330                         switch (td->sp [-1].type) {
2331                         case STACK_TYPE_R8:
2332                                 ADD_CODE(td, MINT_CONV_R4_R8);
2333                                 break;
2334                         case STACK_TYPE_I8:
2335                                 ADD_CODE(td, MINT_CONV_R4_I8);
2336                                 break;
2337                         case STACK_TYPE_I4:
2338                                 ADD_CODE(td, MINT_CONV_R4_I4);
2339                                 break;
2340                         default:
2341                                 g_assert_not_reached ();
2342                         }
2343                         ++td->ip;
2344                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2345                         break;
2346                 case CEE_CONV_R8:
2347                         CHECK_STACK (td, 1);
2348                         switch (td->sp [-1].type) {
2349                         case STACK_TYPE_I4:
2350                                 ADD_CODE(td, MINT_CONV_R8_I4);
2351                                 break;
2352                         case STACK_TYPE_I8:
2353                                 ADD_CODE(td, MINT_CONV_R8_I8);
2354                                 break;
2355                         case STACK_TYPE_R8:
2356                                 break;
2357                         default:
2358                                 g_assert_not_reached ();
2359                         }
2360                         ++td->ip;
2361                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2362                         break;
2363                 case CEE_CONV_U8:
2364                         CHECK_STACK (td, 1);
2365                         switch (td->sp [-1].type) {
2366                         case STACK_TYPE_I4:
2367                                 ADD_CODE(td, MINT_CONV_U8_I4);
2368                                 break;
2369                         case STACK_TYPE_I8:
2370                                 break;
2371                         case STACK_TYPE_R8:
2372                                 ADD_CODE(td, MINT_CONV_U8_R8);
2373                                 break;
2374                         case STACK_TYPE_MP:
2375 #if SIZEOF_VOID_P == 4
2376                                 ADD_CODE(td, MINT_CONV_U8_I4);
2377 #endif
2378                                 break;
2379                         default:
2380                                 g_assert_not_reached ();
2381                         }
2382                         ++td->ip;
2383                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2384                         break;
2385                 case CEE_CPOBJ: {
2386                         CHECK_STACK (td, 2);
2387
2388                         token = read32 (td->ip + 1);
2389                         klass = mono_class_get_full (image, token, generic_context);
2390
2391                         if (klass->valuetype) {
2392                                 ADD_CODE (td, MINT_CPOBJ);
2393                                 ADD_CODE (td, get_data_item_index(td, klass));
2394                         } else {
2395                                 ADD_CODE (td, MINT_LDIND_REF);
2396                                 ADD_CODE (td, MINT_STIND_REF);
2397                         }
2398                         td->ip += 5;
2399                         td->sp -= 2;
2400                         break;
2401                 }
2402                 case CEE_LDOBJ: {
2403                         int size;
2404                         CHECK_STACK (td, 1);
2405
2406                         token = read32 (td->ip + 1);
2407
2408                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2409                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2410                         else
2411                                 klass = mono_class_get_full (image, token, generic_context);
2412
2413                         ADD_CODE(td, MINT_LDOBJ);
2414                         ADD_CODE(td, get_data_item_index(td, klass));
2415                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2416                                 size = mono_class_value_size (klass, NULL);
2417                                 PUSH_VT(td, size);
2418                         }
2419                         td->ip += 5;
2420                         SET_TYPE(td->sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
2421                         BARRIER_IF_VOLATILE (td);
2422                         break;
2423                 }
2424                 case CEE_LDSTR: {
2425                         MonoString *s;
2426                         token = mono_metadata_token_index (read32 (td->ip + 1));
2427                         td->ip += 5;
2428                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
2429                                 s = mono_method_get_wrapper_data (method, token);
2430                         } else if (method->wrapper_type != MONO_WRAPPER_NONE) {
2431                                 s = mono_string_new_wrapper (mono_method_get_wrapper_data (method, token));
2432                         } else {
2433                                 s = mono_ldstr (domain, image, token);
2434                         }
2435                         ADD_CODE(td, MINT_LDSTR);
2436                         ADD_CODE(td, get_data_item_index (td, s));
2437                         PUSH_TYPE(td, STACK_TYPE_O, mono_defaults.string_class);
2438                         break;
2439                 }
2440                 case CEE_NEWOBJ: {
2441                         MonoMethod *m;
2442                         MonoMethodSignature *csignature;
2443                         guint32 vt_stack_used = 0;
2444                         guint32 vt_res_size = 0;
2445
2446                         td->ip++;
2447                         token = read32 (td->ip);
2448                         td->ip += 4;
2449
2450                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2451                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
2452                         else
2453                                 m = mono_get_method_full (image, token, NULL, generic_context);
2454
2455                         csignature = mono_method_signature (m);
2456                         klass = m->klass;
2457                         td->sp -= csignature->param_count;
2458                         ADD_CODE(td, MINT_NEWOBJ);
2459                         ADD_CODE(td, get_data_item_index (td, mono_interp_get_imethod (domain, m, &error)));
2460                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2461
2462                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2463                                 vt_res_size = mono_class_value_size (klass, NULL);
2464                                 PUSH_VT (td, vt_res_size);
2465                         }
2466                         for (i = 0; i < csignature->param_count; ++i) {
2467                                 int mt = mint_type(csignature->params [i]);
2468                                 if (mt == MINT_TYPE_VT) {
2469                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
2470                                         gint32 size = mono_class_value_size (k, NULL);
2471                                         size = (size + 7) & ~7;
2472                                         vt_stack_used += size;
2473                                 }
2474                         }
2475                         if (vt_stack_used != 0 || vt_res_size != 0) {
2476                                 ADD_CODE(td, MINT_VTRESULT);
2477                                 ADD_CODE(td, vt_res_size);
2478                                 WRITE32(td, &vt_stack_used);
2479                                 td->vt_sp -= vt_stack_used;
2480                         }
2481                         PUSH_TYPE (td, stack_type [mint_type (&klass->byval_arg)], klass);
2482                         break;
2483                 }
2484                 case CEE_CASTCLASS:
2485                         CHECK_STACK (td, 1);
2486                         token = read32 (td->ip + 1);
2487                         klass = mini_get_class (method, token, generic_context);
2488                         ADD_CODE(td, MINT_CASTCLASS);
2489                         ADD_CODE(td, get_data_item_index (td, klass));
2490                         td->sp [-1].klass = klass;
2491                         td->ip += 5;
2492                         break;
2493                 case CEE_ISINST:
2494                         CHECK_STACK (td, 1);
2495                         token = read32 (td->ip + 1);
2496                         klass = mini_get_class (method, token, generic_context);
2497                         ADD_CODE(td, MINT_ISINST);
2498                         ADD_CODE(td, get_data_item_index (td, klass));
2499                         td->ip += 5;
2500                         break;
2501                 case CEE_CONV_R_UN:
2502                         switch (td->sp [-1].type) {
2503                         case STACK_TYPE_R8:
2504                                 break;
2505                         case STACK_TYPE_I8:
2506                                 ADD_CODE(td, MINT_CONV_R_UN_I8);
2507                                 break;
2508                         case STACK_TYPE_I4:
2509                                 ADD_CODE(td, MINT_CONV_R_UN_I4);
2510                                 break;
2511                         default:
2512                                 g_assert_not_reached ();
2513                         }
2514                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2515                         ++td->ip;
2516                         break;
2517                 case CEE_UNBOX:
2518                         CHECK_STACK (td, 1);
2519                         token = read32 (td->ip + 1);
2520
2521                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2522                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2523                         else
2524                                 klass = mono_class_get_full (image, token, generic_context);
2525
2526                         if (mono_class_is_nullable (klass)) {
2527                                 g_error ("cee_unbox: implement Nullable");
2528                         }
2529
2530                         ADD_CODE(td, MINT_UNBOX);
2531                         ADD_CODE(td, get_data_item_index (td, klass));
2532                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
2533                         td->ip += 5;
2534                         break;
2535                 case CEE_UNBOX_ANY:
2536                         CHECK_STACK (td, 1);
2537                         token = read32 (td->ip + 1);
2538
2539                         klass = mini_get_class (method, token, generic_context);
2540
2541                         if (mini_type_is_reference (&klass->byval_arg)) {
2542                                 int mt = mint_type (&klass->byval_arg);
2543                                 ADD_CODE (td, MINT_CASTCLASS);
2544                                 ADD_CODE (td, get_data_item_index (td, klass));
2545                                 SET_TYPE (td->sp - 1, stack_type [mt], klass);
2546                                 td->ip += 5;
2547                         } else if (mono_class_is_nullable (klass)) {
2548                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2549                                 /* td->ip is incremented by interp_transform_call */
2550                                 interp_transform_call (td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2551                         } else {
2552                                 int mt = mint_type (&klass->byval_arg);
2553                                 ADD_CODE (td, MINT_UNBOX);
2554                                 ADD_CODE (td, get_data_item_index (td, klass));
2555
2556                                 ADD_CODE (td, MINT_LDOBJ);
2557                                 ADD_CODE (td, get_data_item_index(td, klass));
2558                                 SET_TYPE (td->sp - 1, stack_type [mt], klass);
2559
2560                                 if (mt == MINT_TYPE_VT) {
2561                                         int size = mono_class_value_size (klass, NULL);
2562                                         PUSH_VT (td, size);
2563                                 }
2564                                 td->ip += 5;
2565                         }
2566
2567                         break;
2568                 case CEE_THROW:
2569                         CHECK_STACK (td, 1);
2570                         SIMPLE_OP (td, MINT_THROW);
2571                         --td->sp;
2572                         generating_code = 0;
2573                         break;
2574                 case CEE_LDFLDA:
2575                         CHECK_STACK (td, 1);
2576                         token = read32 (td->ip + 1);
2577                         field = interp_field_from_token (method, token, &klass, generic_context);
2578                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2579                         mono_class_init (klass);
2580                         if (is_static) {
2581                                 ADD_CODE (td, MINT_POP);
2582                                 ADD_CODE (td, 0);
2583                                 ADD_CODE (td, MINT_LDSFLDA);
2584                                 ADD_CODE (td, get_data_item_index (td, field));
2585                         } else {
2586                                 if ((td->sp - 1)->type == STACK_TYPE_O) {
2587                                         ADD_CODE (td, MINT_LDFLDA);
2588                                 } else {
2589                                         g_assert ((td->sp -1)->type == STACK_TYPE_MP);
2590                                         ADD_CODE (td, MINT_LDFLDA_UNSAFE);
2591                                 }
2592                                 ADD_CODE (td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2593                         }
2594                         td->ip += 5;
2595                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
2596                         break;
2597                 case CEE_LDFLD: {
2598                         CHECK_STACK (td, 1);
2599                         token = read32 (td->ip + 1);
2600                         field = interp_field_from_token (method, token, &klass, generic_context);
2601                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2602                         mono_class_init (klass);
2603
2604                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2605                         mt = mint_type (&field_klass->byval_arg);
2606 #ifndef DISABLE_REMOTING
2607                         if (klass->marshalbyref) {
2608                                 g_assert (!is_static);
2609                                 ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2610                                 ADD_CODE(td, get_data_item_index (td, field));
2611                         } else
2612 #endif
2613                         {
2614                                 if (is_static) {
2615                                         ADD_CODE (td, MINT_POP);
2616                                         ADD_CODE (td, 0);
2617                                         ADD_CODE (td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2618                                         ADD_CODE (td, get_data_item_index (td, field));
2619                                 } else {
2620                                         ADD_CODE (td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2621                                         ADD_CODE (td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2622                                 }
2623                         }
2624                         if (mt == MINT_TYPE_VT) {
2625                                 int size = mono_class_value_size (field_klass, NULL);
2626                                 PUSH_VT(td, size);
2627                                 WRITE32(td, &size);
2628                         }
2629                         if (td->sp [-1].type == STACK_TYPE_VT) {
2630                                 int size = mono_class_value_size (klass, NULL);
2631                                 size = (size + 7) & ~7;
2632                                 td->vt_sp -= size;
2633                                 ADD_CODE (td, MINT_VTRESULT);
2634                                 ADD_CODE (td, 0);
2635                                 WRITE32 (td, &size);
2636                         }
2637                         td->ip += 5;
2638                         SET_TYPE(td->sp - 1, stack_type [mt], field_klass);
2639                         BARRIER_IF_VOLATILE (td);
2640                         break;
2641                 }
2642                 case CEE_STFLD: {
2643                         CHECK_STACK (td, 2);
2644                         token = read32 (td->ip + 1);
2645                         field = interp_field_from_token (method, token, &klass, generic_context);
2646                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2647                         mono_class_init (klass);
2648                         mt = mint_type(field->type);
2649
2650                         BARRIER_IF_VOLATILE (td);
2651
2652 #ifndef DISABLE_REMOTING
2653                         if (klass->marshalbyref) {
2654                                 g_assert (!is_static);
2655                                 ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2656                                 ADD_CODE(td, get_data_item_index (td, field));
2657                         } else
2658 #endif
2659                         {
2660                                 if (is_static) {
2661                                         ADD_CODE (td, MINT_POP);
2662                                         ADD_CODE (td, 1);
2663                                         ADD_CODE (td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2664                                         ADD_CODE (td, get_data_item_index (td, field));
2665                                 } else {
2666                                         ADD_CODE (td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2667                                         ADD_CODE (td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2668                                 }
2669                         }
2670                         if (mt == MINT_TYPE_VT) {
2671                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2672                                 int size = mono_class_value_size (klass, NULL);
2673                                 POP_VT(td, size);
2674                                 WRITE32(td, &size);
2675                         }
2676                         td->ip += 5;
2677                         td->sp -= 2;
2678                         break;
2679                 }
2680                 case CEE_LDSFLDA:
2681                         token = read32 (td->ip + 1);
2682                         field = interp_field_from_token (method, token, &klass, generic_context);
2683                         ADD_CODE(td, MINT_LDSFLDA);
2684                         ADD_CODE(td, get_data_item_index (td, field));
2685                         td->ip += 5;
2686                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
2687                         break;
2688                 case CEE_LDSFLD:
2689                         token = read32 (td->ip + 1);
2690                         field = interp_field_from_token (method, token, &klass, generic_context);
2691                         mt = mint_type(field->type);
2692                         ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2693                         ADD_CODE(td, get_data_item_index (td, field));
2694                         klass = NULL;
2695                         if (mt == MINT_TYPE_VT) {
2696                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2697                                 int size = mono_class_value_size (klass, NULL);
2698                                 PUSH_VT(td, size);
2699                                 WRITE32(td, &size);
2700                                 klass = field->type->data.klass;
2701                         } else {
2702                                 if (mt == MINT_TYPE_O)
2703                                         klass = mono_class_from_mono_type (field->type);
2704                         }
2705                         td->ip += 5;
2706                         PUSH_TYPE(td, stack_type [mt], klass);
2707                         break;
2708                 case CEE_STSFLD:
2709                         CHECK_STACK (td, 1);
2710                         token = read32 (td->ip + 1);
2711                         field = interp_field_from_token (method, token, &klass, generic_context);
2712                         mt = mint_type(field->type);
2713                         ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2714                         ADD_CODE(td, get_data_item_index (td, field));
2715                         if (mt == MINT_TYPE_VT) {
2716                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2717                                 int size = mono_class_value_size (klass, NULL);
2718                                 POP_VT (td, size);
2719                                 WRITE32 (td, &size);
2720                         }
2721                         td->ip += 5;
2722                         --td->sp;
2723                         break;
2724                 case CEE_STOBJ: {
2725                         int size;
2726                         token = read32 (td->ip + 1);
2727
2728                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2729                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2730                         else
2731                                 klass = mini_get_class (method, token, generic_context);
2732
2733                         BARRIER_IF_VOLATILE (td);
2734                         ADD_CODE(td, td->sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2735                         ADD_CODE(td, get_data_item_index (td, klass));
2736                         if (td->sp [-1].type == STACK_TYPE_VT) {
2737                                 size = mono_class_value_size (klass, NULL);
2738                                 size = (size + 7) & ~7;
2739                                 td->vt_sp -= size;
2740                         }
2741                         td->ip += 5;
2742                         td->sp -= 2;
2743                         break;
2744                 }
2745                 case CEE_CONV_OVF_I_UN:
2746                 case CEE_CONV_OVF_U_UN:
2747                         CHECK_STACK (td, 1);
2748                         switch (td->sp [-1].type) {
2749                         case STACK_TYPE_R8:
2750 #if SIZEOF_VOID_P == 8
2751                                 ADD_CODE(td, MINT_CONV_OVF_I8_UN_R8);
2752 #else
2753                                 ADD_CODE(td, MINT_CONV_OVF_I4_UN_R8);
2754 #endif
2755                                 break;
2756                         case STACK_TYPE_I8:
2757 #if SIZEOF_VOID_P == 4
2758                                 ADD_CODE (td, MINT_CONV_OVF_I4_UN_I8);
2759 #endif
2760                                 break;
2761                         case STACK_TYPE_I4:
2762 #if SIZEOF_VOID_P == 8
2763                                 ADD_CODE(td, MINT_CONV_I8_U4);
2764 #elif SIZEOF_VOID_P == 4
2765                                 if (*td->ip == CEE_CONV_OVF_I_UN)
2766                                         ADD_CODE(td, MINT_CONV_OVF_I4_U4);
2767 #endif
2768                                 break;
2769                         default:
2770                                 g_assert_not_reached ();
2771                                 break;
2772                         }
2773                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2774                         ++td->ip;
2775                         break;
2776                 case CEE_CONV_OVF_I8_UN:
2777                 case CEE_CONV_OVF_U8_UN:
2778                         CHECK_STACK (td, 1);
2779                         switch (td->sp [-1].type) {
2780                         case STACK_TYPE_R8:
2781                                 ADD_CODE(td, MINT_CONV_OVF_I8_UN_R8);
2782                                 break;
2783                         case STACK_TYPE_I8:
2784                                 if (*td->ip == CEE_CONV_OVF_I8_UN)
2785                                         ADD_CODE (td, MINT_CONV_OVF_I8_U8);
2786                                 break;
2787                         case STACK_TYPE_I4:
2788                                 ADD_CODE(td, MINT_CONV_I8_U4);
2789                                 break;
2790                         default:
2791                                 g_assert_not_reached ();
2792                                 break;
2793                         }
2794                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2795                         ++td->ip;
2796                         break;
2797                 case CEE_BOX: {
2798                         int size;
2799                         CHECK_STACK (td, 1);
2800                         token = read32 (td->ip + 1);
2801                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2802                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2803                         else
2804                                 klass = mini_get_class (method, token, generic_context);
2805
2806                         if (mono_class_is_nullable (klass)) {
2807                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2808                                 /* td->ip is incremented by interp_transform_call */
2809                                 interp_transform_call (td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2810                         } else if (!klass->valuetype) {
2811                                 /* already boxed, do nothing. */
2812                                 td->ip += 5;
2813                         } else {
2814                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2815                                         size = mono_class_value_size (klass, NULL);
2816                                         size = (size + 7) & ~7;
2817                                         td->vt_sp -= size;
2818                                 }
2819                                 ADD_CODE(td, MINT_BOX);
2820                                 ADD_CODE(td, get_data_item_index (td, klass));
2821                                 ADD_CODE (td, 0);
2822                                 SET_TYPE(td->sp - 1, STACK_TYPE_O, klass);
2823                                 td->ip += 5;
2824                         }
2825
2826                         break;
2827                 }
2828                 case CEE_NEWARR: {
2829                         CHECK_STACK (td, 1);
2830                         token = read32 (td->ip + 1);
2831
2832                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2833                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2834                         else
2835                                 klass = mini_get_class (method, token, generic_context);
2836
2837                         unsigned char lentype = (td->sp - 1)->type;
2838                         if (lentype == STACK_TYPE_I8) {
2839                                 /* mimic mini behaviour */
2840                                 ADD_CODE (td, MINT_CONV_OVF_U4_I8);
2841                         } else {
2842                                 g_assert (lentype == STACK_TYPE_I4);
2843                                 ADD_CODE (td, MINT_CONV_OVF_U4_I4);
2844                         }
2845                         SET_SIMPLE_TYPE (td->sp - 1, STACK_TYPE_I4);
2846                         ADD_CODE (td, MINT_NEWARR);
2847                         ADD_CODE (td, get_data_item_index (td, klass));
2848                         SET_TYPE (td->sp - 1, STACK_TYPE_O, klass);
2849                         td->ip += 5;
2850                         break;
2851                 }
2852                 case CEE_LDLEN:
2853                         CHECK_STACK (td, 1);
2854                         SIMPLE_OP (td, MINT_LDLEN);
2855                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2856                         break;
2857                 case CEE_LDELEMA:
2858                         CHECK_STACK (td, 2);
2859                         ENSURE_I4 (td, 1);
2860                         token = read32 (td->ip + 1);
2861
2862                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2863                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2864                         else
2865                                 klass = mini_get_class (method, token, generic_context);
2866
2867                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2868                                 ADD_CODE (td, MINT_LDELEMA_TC);
2869                         } else {
2870                                 ADD_CODE (td, MINT_LDELEMA);
2871                         }
2872                         ADD_CODE (td, get_data_item_index (td, klass));
2873                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2874                         ADD_CODE (td, 2);
2875                         readonly = FALSE;
2876
2877                         td->ip += 5;
2878                         --td->sp;
2879                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
2880                         break;
2881                 case CEE_LDELEM_I1:
2882                         CHECK_STACK (td, 2);
2883                         ENSURE_I4 (td, 1);
2884                         SIMPLE_OP (td, MINT_LDELEM_I1);
2885                         --td->sp;
2886                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2887                         break;
2888                 case CEE_LDELEM_U1:
2889                         CHECK_STACK (td, 2);
2890                         ENSURE_I4 (td, 1);
2891                         SIMPLE_OP (td, MINT_LDELEM_U1);
2892                         --td->sp;
2893                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2894                         break;
2895                 case CEE_LDELEM_I2:
2896                         CHECK_STACK (td, 2);
2897                         ENSURE_I4 (td, 1);
2898                         SIMPLE_OP (td, MINT_LDELEM_I2);
2899                         --td->sp;
2900                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2901                         break;
2902                 case CEE_LDELEM_U2:
2903                         CHECK_STACK (td, 2);
2904                         ENSURE_I4 (td, 1);
2905                         SIMPLE_OP (td, MINT_LDELEM_U2);
2906                         --td->sp;
2907                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2908                         break;
2909                 case CEE_LDELEM_I4:
2910                         CHECK_STACK (td, 2);
2911                         ENSURE_I4 (td, 1);
2912                         SIMPLE_OP (td, MINT_LDELEM_I4);
2913                         --td->sp;
2914                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2915                         break;
2916                 case CEE_LDELEM_U4:
2917                         CHECK_STACK (td, 2);
2918                         ENSURE_I4 (td, 1);
2919                         SIMPLE_OP (td, MINT_LDELEM_U4);
2920                         --td->sp;
2921                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2922                         break;
2923                 case CEE_LDELEM_I8:
2924                         CHECK_STACK (td, 2);
2925                         ENSURE_I4 (td, 1);
2926                         SIMPLE_OP (td, MINT_LDELEM_I8);
2927                         --td->sp;
2928                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2929                         break;
2930                 case CEE_LDELEM_I:
2931                         CHECK_STACK (td, 2);
2932                         ENSURE_I4 (td, 1);
2933                         SIMPLE_OP (td, MINT_LDELEM_I);
2934                         --td->sp;
2935                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2936                         break;
2937                 case CEE_LDELEM_R4:
2938                         CHECK_STACK (td, 2);
2939                         ENSURE_I4 (td, 1);
2940                         SIMPLE_OP (td, MINT_LDELEM_R4);
2941                         --td->sp;
2942                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2943                         break;
2944                 case CEE_LDELEM_R8:
2945                         CHECK_STACK (td, 2);
2946                         ENSURE_I4 (td, 1);
2947                         SIMPLE_OP (td, MINT_LDELEM_R8);
2948                         --td->sp;
2949                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2950                         break;
2951                 case CEE_LDELEM_REF:
2952                         CHECK_STACK (td, 2);
2953                         ENSURE_I4 (td, 1);
2954                         SIMPLE_OP (td, MINT_LDELEM_REF);
2955                         --td->sp;
2956                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_O);
2957                         break;
2958                 case CEE_LDELEM:
2959                         CHECK_STACK (td, 2);
2960                         token = read32 (td->ip + 1);
2961                         klass = mini_get_class (method, token, generic_context);
2962                         switch (mint_type (&klass->byval_arg)) {
2963                                 case MINT_TYPE_I1:
2964                                         ENSURE_I4 (td, 1);
2965                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2966                                         --td->sp;
2967                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2968                                         break;
2969                                 case MINT_TYPE_U1:
2970                                         ENSURE_I4 (td, 1);
2971                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2972                                         --td->sp;
2973                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2974                                         break;
2975                                 case MINT_TYPE_U2:
2976                                         ENSURE_I4 (td, 1);
2977                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2978                                         --td->sp;
2979                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2980                                         break;
2981                                 case MINT_TYPE_I2:
2982                                         ENSURE_I4 (td, 1);
2983                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2984                                         --td->sp;
2985                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2986                                         break;
2987                                 case MINT_TYPE_I4:
2988                                         ENSURE_I4 (td, 1);
2989                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2990                                         --td->sp;
2991                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2992                                         break;
2993                                 case MINT_TYPE_I8:
2994                                         ENSURE_I4 (td, 1);
2995                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2996                                         --td->sp;
2997                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2998                                         break;
2999                                 case MINT_TYPE_R4:
3000                                         ENSURE_I4 (td, 1);
3001                                         SIMPLE_OP (td, MINT_LDELEM_R4);
3002                                         --td->sp;
3003                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
3004                                         break;
3005                                 case MINT_TYPE_R8:
3006                                         ENSURE_I4 (td, 1);
3007                                         SIMPLE_OP (td, MINT_LDELEM_R8);
3008                                         --td->sp;
3009                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
3010                                         break;
3011                                 case MINT_TYPE_O:
3012                                         ENSURE_I4 (td, 1);
3013                                         SIMPLE_OP (td, MINT_LDELEM_REF);
3014                                         --td->sp;
3015                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_O);
3016                                         break;
3017                                 case MINT_TYPE_VT: {
3018                                         int size = mono_class_value_size (klass, NULL);
3019                                         ENSURE_I4 (td, 1);
3020                                         SIMPLE_OP (td, MINT_LDELEM_VT);
3021                                         ADD_CODE (td, get_data_item_index (td, klass));
3022                                         WRITE32 (td, &size);
3023                                         --td->sp;
3024                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_VT);
3025                                         PUSH_VT (td, size);
3026                                         break;
3027                                 }
3028                                 default: {
3029                                         GString *res = g_string_new ("");
3030                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
3031                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
3032                                         g_string_free (res, TRUE);
3033                                         g_assert (0);
3034                                         break;
3035                                 }
3036                         }
3037                         td->ip += 4;
3038                         break;
3039                 case CEE_STELEM_I:
3040                         CHECK_STACK (td, 3);
3041                         ENSURE_I4 (td, 2);
3042                         SIMPLE_OP (td, MINT_STELEM_I);
3043                         td->sp -= 3;
3044                         break;
3045                 case CEE_STELEM_I1:
3046                         CHECK_STACK (td, 3);
3047                         ENSURE_I4 (td, 2);
3048                         SIMPLE_OP (td, MINT_STELEM_I1);
3049                         td->sp -= 3;
3050                         break;
3051                 case CEE_STELEM_I2:
3052                         CHECK_STACK (td, 3);
3053                         ENSURE_I4 (td, 2);
3054                         SIMPLE_OP (td, MINT_STELEM_I2);
3055                         td->sp -= 3;
3056                         break;
3057                 case CEE_STELEM_I4:
3058                         CHECK_STACK (td, 3);
3059                         ENSURE_I4 (td, 2);
3060                         SIMPLE_OP (td, MINT_STELEM_I4);
3061                         td->sp -= 3;
3062                         break;
3063                 case CEE_STELEM_I8:
3064                         CHECK_STACK (td, 3);
3065                         ENSURE_I4 (td, 2);
3066                         SIMPLE_OP (td, MINT_STELEM_I8);
3067                         td->sp -= 3;
3068                         break;
3069                 case CEE_STELEM_R4:
3070                         CHECK_STACK (td, 3);
3071                         ENSURE_I4 (td, 2);
3072                         SIMPLE_OP (td, MINT_STELEM_R4);
3073                         td->sp -= 3;
3074                         break;
3075                 case CEE_STELEM_R8:
3076                         CHECK_STACK (td, 3);
3077                         ENSURE_I4 (td, 2);
3078                         SIMPLE_OP (td, MINT_STELEM_R8);
3079                         td->sp -= 3;
3080                         break;
3081                 case CEE_STELEM_REF:
3082                         CHECK_STACK (td, 3);
3083                         ENSURE_I4 (td, 2);
3084                         SIMPLE_OP (td, MINT_STELEM_REF);
3085                         td->sp -= 3;
3086                         break;
3087                 case CEE_STELEM:
3088                         CHECK_STACK (td, 3);
3089                         ENSURE_I4 (td, 2);
3090                         token = read32 (td->ip + 1);
3091                         klass = mini_get_class (method, token, generic_context);
3092                         switch (mint_type (&klass->byval_arg)) {
3093                                 case MINT_TYPE_U1:
3094                                         SIMPLE_OP (td, MINT_STELEM_U1);
3095                                         break;
3096                                 case MINT_TYPE_U2:
3097                                         SIMPLE_OP (td, MINT_STELEM_U2);
3098                                         break;
3099                                 case MINT_TYPE_I4:
3100                                         SIMPLE_OP (td, MINT_STELEM_I4);
3101                                         break;
3102                                 case MINT_TYPE_I8:
3103                                         SIMPLE_OP (td, MINT_STELEM_I8);
3104                                         break;
3105                                 case MINT_TYPE_O:
3106                                         SIMPLE_OP (td, MINT_STELEM_REF);
3107                                         break;
3108                                 case MINT_TYPE_VT: {
3109                                         int size = mono_class_value_size (klass, NULL);
3110                                         SIMPLE_OP (td, MINT_STELEM_VT);
3111                                         ADD_CODE (td, get_data_item_index (td, klass));
3112                                         WRITE32 (td, &size);
3113                                         POP_VT (td, size);
3114                                         break;
3115                                 }
3116                                 default: {
3117                                         GString *res = g_string_new ("");
3118                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
3119                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
3120                                         g_string_free (res, TRUE);
3121                                         g_assert (0);
3122                                         break;
3123                                 }
3124                         }
3125                         td->ip += 4;
3126                         td->sp -= 3;
3127                         break;
3128 #if 0
3129                 case CEE_CONV_OVF_U1:
3130
3131                 case CEE_CONV_OVF_I8:
3132
3133 #if SIZEOF_VOID_P == 8
3134                 case CEE_CONV_OVF_U:
3135 #endif
3136 #endif
3137                 case CEE_CKFINITE:
3138                         CHECK_STACK (td, 1);
3139                         SIMPLE_OP (td, MINT_CKFINITE);
3140                         break;
3141                 case CEE_MKREFANY:
3142                         CHECK_STACK (td, 1);
3143                         ENSURE_I4 (td, 2);
3144                         token = read32 (td->ip + 1);
3145                         klass = mini_get_class (method, token, generic_context);
3146
3147                         ADD_CODE (td, MINT_MKREFANY);
3148                         ADD_CODE (td, get_data_item_index (td, klass));
3149
3150                         td->ip += 5;
3151                         PUSH_VT (td, sizeof (MonoTypedRef));
3152                         SET_TYPE(td->sp - 1, STACK_TYPE_VT, mono_defaults.typed_reference_class);
3153                         break;
3154                 case CEE_REFANYVAL: {
3155                         CHECK_STACK (td, 1);
3156                         ENSURE_I4 (td, 2);
3157                         token = read32 (td->ip + 1);
3158
3159                         ADD_CODE (td, MINT_REFANYVAL);
3160
3161                         POP_VT (td, sizeof (MonoTypedRef));
3162                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3163
3164                         td->ip += 5;
3165                         break;
3166                 }
3167                 case CEE_CONV_OVF_I1:
3168                 case CEE_CONV_OVF_I1_UN:
3169                         CHECK_STACK (td, 1);
3170                         switch (td->sp [-1].type) {
3171                         case STACK_TYPE_R8:
3172                                 ADD_CODE(td, MINT_CONV_OVF_I1_R8);
3173                                 break;
3174                         case STACK_TYPE_I4:
3175                                 ADD_CODE(td, MINT_CONV_OVF_I1_I4);
3176                                 break;
3177                         case STACK_TYPE_I8:
3178                                 ADD_CODE(td, MINT_CONV_OVF_I1_I8);
3179                                 break;
3180                         default:
3181                                 g_assert_not_reached ();
3182                         }
3183                         ++td->ip;
3184                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3185                         break;
3186                 case CEE_CONV_OVF_U1:
3187                 case CEE_CONV_OVF_U1_UN:
3188                         CHECK_STACK (td, 1);
3189                         switch (td->sp [-1].type) {
3190                         case STACK_TYPE_R8:
3191                                 ADD_CODE(td, MINT_CONV_OVF_U1_R8);
3192                                 break;
3193                         case STACK_TYPE_I4:
3194                                 ADD_CODE(td, MINT_CONV_OVF_U1_I4);
3195                                 break;
3196                         case STACK_TYPE_I8:
3197                                 ADD_CODE(td, MINT_CONV_OVF_U1_I8);
3198                                 break;
3199                         default:
3200                                 g_assert_not_reached ();
3201                         }
3202                         ++td->ip;
3203                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3204                         break;
3205                 case CEE_CONV_OVF_I2:
3206                 case CEE_CONV_OVF_I2_UN:
3207                         CHECK_STACK (td, 1);
3208                         switch (td->sp [-1].type) {
3209                         case STACK_TYPE_R8:
3210                                 ADD_CODE(td, MINT_CONV_OVF_I2_R8);
3211                                 break;
3212                         case STACK_TYPE_I4:
3213                                 ADD_CODE(td, MINT_CONV_OVF_I2_I4);
3214                                 break;
3215                         case STACK_TYPE_I8:
3216                                 ADD_CODE(td, MINT_CONV_OVF_I2_I8);
3217                                 break;
3218                         default:
3219                                 g_assert_not_reached ();
3220                         }
3221                         ++td->ip;
3222                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3223                         break;
3224                 case CEE_CONV_OVF_U2_UN:
3225                 case CEE_CONV_OVF_U2:
3226                         CHECK_STACK (td, 1);
3227                         switch (td->sp [-1].type) {
3228                         case STACK_TYPE_R8:
3229                                 ADD_CODE(td, MINT_CONV_OVF_U2_R8);
3230                                 break;
3231                         case STACK_TYPE_I4:
3232                                 ADD_CODE(td, MINT_CONV_OVF_U2_I4);
3233                                 break;
3234                         case STACK_TYPE_I8:
3235                                 ADD_CODE(td, MINT_CONV_OVF_U2_I8);
3236                                 break;
3237                         default:
3238                                 g_assert_not_reached ();
3239                         }
3240                         ++td->ip;
3241                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3242                         break;
3243 #if SIZEOF_VOID_P == 4
3244                 case CEE_CONV_OVF_I:
3245 #endif
3246                 case CEE_CONV_OVF_I4:
3247                 case CEE_CONV_OVF_I4_UN:
3248                         CHECK_STACK (td, 1);
3249                         switch (td->sp [-1].type) {
3250                         case STACK_TYPE_R8:
3251                                 ADD_CODE(td, MINT_CONV_OVF_I4_R8);
3252                                 break;
3253                         case STACK_TYPE_I4:
3254                                 if (*td->ip == CEE_CONV_OVF_I4_UN)
3255                                         ADD_CODE(td, MINT_CONV_OVF_I4_U4);
3256                                 break;
3257                         case STACK_TYPE_I8:
3258                                 if (*td->ip == CEE_CONV_OVF_I4_UN)
3259                                         ADD_CODE (td, MINT_CONV_OVF_I4_U8);
3260                                 else
3261                                         ADD_CODE (td, MINT_CONV_OVF_I4_I8);
3262                                 break;
3263                         default:
3264                                 g_assert_not_reached ();
3265                         }
3266                         ++td->ip;
3267                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3268                         break;
3269 #if SIZEOF_VOID_P == 4
3270                 case CEE_CONV_OVF_U:
3271 #endif
3272                 case CEE_CONV_OVF_U4:
3273                 case CEE_CONV_OVF_U4_UN:
3274                         CHECK_STACK (td, 1);
3275                         switch (td->sp [-1].type) {
3276                         case STACK_TYPE_R8:
3277                                 ADD_CODE(td, MINT_CONV_OVF_U4_R8);
3278                                 break;
3279                         case STACK_TYPE_I4:
3280                                 if (*td->ip != CEE_CONV_OVF_U4_UN)
3281                                         ADD_CODE(td, MINT_CONV_OVF_U4_I4);
3282                                 break;
3283                         case STACK_TYPE_I8:
3284                                 ADD_CODE(td, MINT_CONV_OVF_U4_I8);
3285                                 break;
3286                         default:
3287                                 g_assert_not_reached ();
3288                         }
3289                         ++td->ip;
3290                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3291                         break;
3292 #if SIZEOF_VOID_P == 8
3293                 case CEE_CONV_OVF_I:
3294 #endif
3295                 case CEE_CONV_OVF_I8:
3296                         CHECK_STACK (td, 1);
3297                         switch (td->sp [-1].type) {
3298                         case STACK_TYPE_R8:
3299                                 ADD_CODE(td, MINT_CONV_OVF_I8_R8);
3300                                 break;
3301                         case STACK_TYPE_I4:
3302                                 ADD_CODE(td, MINT_CONV_I8_I4);
3303                                 break;
3304                         case STACK_TYPE_I8:
3305                                 break;
3306                         default:
3307                                 g_assert_not_reached ();
3308                         }
3309                         ++td->ip;
3310                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
3311                         break;
3312 #if SIZEOF_VOID_P == 8
3313                 case CEE_CONV_OVF_U:
3314 #endif
3315                 case CEE_CONV_OVF_U8:
3316                         CHECK_STACK (td, 1);
3317                         switch (td->sp [-1].type) {
3318                         case STACK_TYPE_R8:
3319                                 ADD_CODE(td, MINT_CONV_OVF_U8_R8);
3320                                 break;
3321                         case STACK_TYPE_I4:
3322                                 ADD_CODE(td, MINT_CONV_OVF_U8_I4);
3323                                 break;
3324                         case STACK_TYPE_I8:
3325                                 ADD_CODE (td, MINT_CONV_OVF_U8_I8);
3326                                 break;
3327                         default:
3328                                 g_assert_not_reached ();
3329                         }
3330                         ++td->ip;
3331                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
3332                         break;
3333                 case CEE_LDTOKEN: {
3334                         int size;
3335                         gpointer handle;
3336                         token = read32 (td->ip + 1);
3337                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3338                                 handle = mono_method_get_wrapper_data (method, token);
3339                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
3340                                 if (klass == mono_defaults.typehandle_class)
3341                                         handle = &((MonoClass *) handle)->byval_arg;
3342
3343                                 if (generic_context) {
3344                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
3345                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3346                                 }
3347                         } else {
3348                                 handle = mono_ldtoken (image, token, &klass, generic_context);
3349                         }
3350                         mono_class_init (klass);
3351                         mt = mint_type (&klass->byval_arg);
3352                         g_assert (mt == MINT_TYPE_VT);
3353                         size = mono_class_value_size (klass, NULL);
3354                         g_assert (size == sizeof(gpointer));
3355                         PUSH_VT (td, sizeof(gpointer));
3356                         ADD_CODE (td, MINT_LDTOKEN);
3357                         ADD_CODE (td, get_data_item_index (td, handle));
3358
3359                         SET_TYPE (td->sp, stack_type [mt], klass);
3360                         td->sp++;
3361                         td->ip += 5;
3362                         break;
3363                 }
3364                 case CEE_ADD_OVF:
3365                         binary_arith_op(td, MINT_ADD_OVF_I4);
3366                         ++td->ip;
3367                         break;
3368                 case CEE_ADD_OVF_UN:
3369                         binary_arith_op(td, MINT_ADD_OVF_UN_I4);
3370                         ++td->ip;
3371                         break;
3372                 case CEE_MUL_OVF:
3373                         binary_arith_op(td, MINT_MUL_OVF_I4);
3374                         ++td->ip;
3375                         break;
3376                 case CEE_MUL_OVF_UN:
3377                         binary_arith_op(td, MINT_MUL_OVF_UN_I4);
3378                         ++td->ip;
3379                         break;
3380                 case CEE_SUB_OVF:
3381                         binary_arith_op(td, MINT_SUB_OVF_I4);
3382                         ++td->ip;
3383                         break;
3384                 case CEE_SUB_OVF_UN:
3385                         binary_arith_op(td, MINT_SUB_OVF_UN_I4);
3386                         ++td->ip;
3387                         break;
3388                 case CEE_ENDFINALLY:
3389                         g_assert (td->clause_indexes [in_offset] != -1);
3390                         td->sp = td->stack;
3391                         SIMPLE_OP (td, MINT_ENDFINALLY);
3392                         ADD_CODE (td, td->clause_indexes [in_offset]);
3393                         generating_code = 0;
3394                         break;
3395                 case CEE_LEAVE:
3396                         td->sp = td->stack;
3397                         handle_branch (td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td->ip + 1));
3398                         td->ip += 5;
3399                         generating_code = 0;
3400                         break;
3401                 case CEE_LEAVE_S:
3402                         td->sp = td->stack;
3403                         handle_branch (td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td->ip [1]);
3404                         td->ip += 2;
3405                         generating_code = 0;
3406                         break;
3407                 case CEE_UNUSED41:
3408                         ++td->ip;
3409                         switch (*td->ip) {
3410                                 case CEE_MONO_CALLI_EXTRA_ARG:
3411                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
3412                                         ADD_CODE (td, MINT_POP);
3413                                         ADD_CODE (td, 1);
3414                                         --td->sp;
3415                                         interp_transform_call (td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
3416                                         break;
3417                                 case CEE_MONO_JIT_ICALL_ADDR: {
3418                                         guint32 token;
3419                                         gpointer func;
3420                                         MonoJitICallInfo *info;
3421
3422                                         token = read32 (td->ip + 1);
3423                                         td->ip += 5;
3424                                         func = mono_method_get_wrapper_data (method, token);
3425                                         info = mono_find_jit_icall_by_addr (func);
3426
3427                                         ADD_CODE (td, MINT_LDFTN);
3428                                         ADD_CODE (td, get_data_item_index (td, func));
3429                                         PUSH_SIMPLE_TYPE (td, STACK_TYPE_I);
3430                                         break;
3431                                 }
3432                                 case CEE_MONO_ICALL: {
3433                                         guint32 token;
3434                                         gpointer func;
3435                                         MonoJitICallInfo *info;
3436
3437                                         token = read32 (td->ip + 1);
3438                                         td->ip += 5;
3439                                         func = mono_method_get_wrapper_data (method, token);
3440                                         info = mono_find_jit_icall_by_addr (func);
3441                                         g_assert (info);
3442
3443                                         CHECK_STACK (td, info->sig->param_count);
3444                                         switch (info->sig->param_count) {
3445                                         case 0:
3446                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3447                                                         ADD_CODE (td,MINT_ICALL_V_V);
3448                                                 else
3449                                                         ADD_CODE (td, MINT_ICALL_V_P);
3450                                                 break;
3451                                         case 1:
3452                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3453                                                         ADD_CODE (td,MINT_ICALL_P_V);
3454                                                 else
3455                                                         ADD_CODE (td,MINT_ICALL_P_P);
3456                                                 break;
3457                                         case 2:
3458                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
3459                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3460                                                                 ADD_CODE (td,MINT_ICALL_PI_V);
3461                                                         else
3462                                                                 ADD_CODE (td,MINT_ICALL_PP_V);
3463                                                 } else {
3464                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3465                                                                 ADD_CODE (td,MINT_ICALL_PI_P);
3466                                                         else
3467                                                                 ADD_CODE (td,MINT_ICALL_PP_P);
3468                                                 }
3469                                                 break;
3470                                         case 3:
3471                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
3472                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
3473                                                         ADD_CODE (td,MINT_ICALL_PPI_V);
3474                                                 else
3475                                                         ADD_CODE (td,MINT_ICALL_PPP_V);
3476                                                 break;
3477                                         default:
3478                                                 g_assert_not_reached ();
3479                                         }
3480
3481                                         if (func == mono_ftnptr_to_delegate) {
3482                                                 g_error ("TODO: ?");
3483                                         }
3484                                         ADD_CODE(td, get_data_item_index (td, func));
3485                                         td->sp -= info->sig->param_count;
3486
3487                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
3488                                                 td->sp ++;
3489                                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
3490                                         }
3491                                         break;
3492                                 }
3493                         case CEE_MONO_VTADDR: {
3494                                 int size;
3495                                 CHECK_STACK (td, 1);
3496                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
3497                                         size = mono_class_native_size(td->sp [-1].klass, NULL);
3498                                 else
3499                                         size = mono_class_value_size(td->sp [-1].klass, NULL);
3500                                 size = (size + 7) & ~7;
3501                                 ADD_CODE(td, MINT_VTRESULT);
3502                                 ADD_CODE(td, 0);
3503                                 WRITE32(td, &size);
3504                                 td->vt_sp -= size;
3505                                 ++td->ip;
3506                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3507                                 break;
3508                         }
3509                         case CEE_MONO_LDPTR:
3510                         case CEE_MONO_CLASSCONST:
3511                                 token = read32 (td->ip + 1);
3512                                 td->ip += 5;
3513                                 ADD_CODE(td, MINT_MONO_LDPTR);
3514                                 ADD_CODE(td, get_data_item_index (td, mono_method_get_wrapper_data (method, token)));
3515                                 td->sp [0].type = STACK_TYPE_I;
3516                                 ++td->sp;
3517                                 break;
3518                         case CEE_MONO_OBJADDR:
3519                                 CHECK_STACK (td, 1);
3520                                 ++td->ip;
3521                                 td->sp[-1].type = STACK_TYPE_MP;
3522                                 /* do nothing? */
3523                                 break;
3524                         case CEE_MONO_NEWOBJ:
3525                                 token = read32 (td->ip + 1);
3526                                 td->ip += 5;
3527                                 ADD_CODE(td, MINT_MONO_NEWOBJ);
3528                                 ADD_CODE(td, get_data_item_index (td, mono_method_get_wrapper_data (method, token)));
3529                                 td->sp [0].type = STACK_TYPE_O;
3530                                 ++td->sp;
3531                                 break;
3532                         case CEE_MONO_RETOBJ:
3533                                 CHECK_STACK (td, 1);
3534                                 token = read32 (td->ip + 1);
3535                                 td->ip += 5;
3536                                 ADD_CODE(td, MINT_MONO_RETOBJ);
3537                                 td->sp--;
3538
3539                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3540
3541                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
3542
3543                                 if (td->sp > td->stack)
3544                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td->sp-td->stack);
3545                                 break;
3546                         case CEE_MONO_LDNATIVEOBJ:
3547                                 token = read32 (td->ip + 1);
3548                                 td->ip += 5;
3549                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3550                                 g_assert(klass->valuetype);
3551                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3552                                 break;
3553                         case CEE_MONO_TLS: {
3554                                 gint32 key = read32 (td->ip + 1);
3555                                 td->ip += 5;
3556                                 g_assert (key < TLS_KEY_NUM);
3557                                 ADD_CODE (td, MINT_MONO_TLS);
3558                                 WRITE32 (td, &key);
3559                                 PUSH_SIMPLE_TYPE (td, STACK_TYPE_MP);
3560                                 break;
3561                         }
3562                         case CEE_MONO_ATOMIC_STORE_I4:
3563                                 CHECK_STACK (td, 2);
3564                                 SIMPLE_OP (td, MINT_MONO_ATOMIC_STORE_I4);
3565                                 td->sp -= 2;
3566                                 td->ip++;
3567                                 break;
3568                         case CEE_MONO_SAVE_LMF:
3569                         case CEE_MONO_RESTORE_LMF:
3570                         case CEE_MONO_NOT_TAKEN:
3571                                 ++td->ip;
3572                                 break;
3573                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
3574                                 ADD_CODE (td, MINT_MONO_LDPTR);
3575                                 ADD_CODE (td, get_data_item_index (td, mono_thread_interruption_request_flag ()));
3576                                 PUSH_TYPE (td, STACK_TYPE_MP, NULL);
3577                                 ++td->ip;
3578                                 break;
3579                         case CEE_MONO_MEMORY_BARRIER:
3580                                 ADD_CODE (td, MINT_MONO_MEMORY_BARRIER);
3581                                 ++td->ip;
3582                                 break;
3583                         case CEE_MONO_JIT_ATTACH:
3584                                 ADD_CODE (td, MINT_MONO_JIT_ATTACH);
3585                                 ++td->ip;
3586                                 break;
3587                         case CEE_MONO_JIT_DETACH:
3588                                 ADD_CODE (td, MINT_MONO_JIT_DETACH);
3589                                 ++td->ip;
3590                                 break;
3591                         case CEE_MONO_LDDOMAIN:
3592                                 ADD_CODE (td, MINT_MONO_LDDOMAIN);
3593                                 td->sp [0].type = STACK_TYPE_I;
3594                                 ++td->sp;
3595                                 ++td->ip;
3596                                 break;
3597                         default:
3598                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td->ip, td->ip-header->code);
3599                         }
3600                         break;
3601 #if 0
3602                 case CEE_PREFIX7:
3603                 case CEE_PREFIX6:
3604                 case CEE_PREFIX5:
3605                 case CEE_PREFIX4:
3606                 case CEE_PREFIX3:
3607                 case CEE_PREFIX2:
3608                 case CEE_PREFIXREF: ves_abort(); break;
3609 #endif
3610                 /*
3611                  * Note: Exceptions thrown when executing a prefixed opcode need
3612                  * to take into account the number of prefix bytes (usually the
3613                  * throw point is just (ip - n_prefix_bytes).
3614                  */
3615                 case CEE_PREFIX1:
3616                         ++td->ip;
3617                         switch (*td->ip) {
3618 #if 0
3619                         case CEE_ARGLIST: ves_abort(); break;
3620 #endif
3621                         case CEE_CEQ:
3622                                 CHECK_STACK(td, 2);
3623                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3624                                         ADD_CODE(td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3625                                 else
3626                                         ADD_CODE(td, MINT_CEQ_I4 + td->sp [-1].type - STACK_TYPE_I4);
3627                                 --td->sp;
3628                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3629                                 ++td->ip;
3630                                 break;
3631                         case CEE_CGT:
3632                                 CHECK_STACK(td, 2);
3633                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3634                                         ADD_CODE(td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3635                                 else
3636                                         ADD_CODE(td, MINT_CGT_I4 + td->sp [-1].type - STACK_TYPE_I4);
3637                                 --td->sp;
3638                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3639                                 ++td->ip;
3640                                 break;
3641                         case CEE_CGT_UN:
3642                                 CHECK_STACK(td, 2);
3643                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3644                                         ADD_CODE(td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3645                                 else
3646                                         ADD_CODE(td, MINT_CGT_UN_I4 + td->sp [-1].type - STACK_TYPE_I4);
3647                                 --td->sp;
3648                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3649                                 ++td->ip;
3650                                 break;
3651                         case CEE_CLT:
3652                                 CHECK_STACK(td, 2);
3653                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3654                                         ADD_CODE(td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3655                                 else
3656                                         ADD_CODE(td, MINT_CLT_I4 + td->sp [-1].type - STACK_TYPE_I4);
3657                                 --td->sp;
3658                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3659                                 ++td->ip;
3660                                 break;
3661                         case CEE_CLT_UN:
3662                                 CHECK_STACK(td, 2);
3663                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3664                                         ADD_CODE(td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3665                                 else
3666                                         ADD_CODE(td, MINT_CLT_UN_I4 + td->sp [-1].type - STACK_TYPE_I4);
3667                                 --td->sp;
3668                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3669                                 ++td->ip;
3670                                 break;
3671                         case CEE_LDVIRTFTN: /* fallthrough */
3672                         case CEE_LDFTN: {
3673                                 MonoMethod *m;
3674                                 if (*td->ip == CEE_LDVIRTFTN) {
3675                                         CHECK_STACK (td, 1);
3676                                         --td->sp;
3677                                 }
3678                                 token = read32 (td->ip + 1);
3679                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3680                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3681                                 else
3682                                         m = mono_get_method_full (image, token, NULL, generic_context);
3683
3684                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3685                                         m = mono_marshal_get_synchronized_wrapper (m);
3686
3687                                 ADD_CODE(td, *td->ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3688                                 ADD_CODE(td, get_data_item_index (td, mono_interp_get_imethod (domain, m, &error)));
3689                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3690                                 td->ip += 5;
3691                                 PUSH_SIMPLE_TYPE (td, STACK_TYPE_F);
3692                                 break;
3693                         }
3694                         case CEE_LDARG:
3695                                 load_arg (td, read16 (td->ip + 1));
3696                                 td->ip += 3;
3697                                 break;
3698                         case CEE_LDARGA: {
3699                                 int n = read16 (td->ip + 1);
3700                                 ADD_CODE (td, MINT_LDARGA);
3701                                 ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offsets */
3702                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
3703                                 td->ip += 3;
3704                                 break;
3705                         }
3706                         case CEE_STARG:
3707                                 store_arg (td, read16 (td->ip + 1));
3708                                 td->ip += 3;
3709                                 break;
3710                         case CEE_LDLOC:
3711                                 load_local (td, read16 (td->ip + 1));
3712                                 td->ip += 3;
3713                                 break;
3714                         case CEE_LDLOCA:
3715                                 ADD_CODE(td, MINT_LDLOCA_S);
3716                                 ADD_CODE(td, td->rtm->local_offsets [read16 (td->ip + 1)]);
3717                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
3718                                 td->ip += 3;
3719                                 break;
3720                         case CEE_STLOC:
3721                                 store_local (td, read16 (td->ip + 1));
3722                                 td->ip += 3;
3723                                 break;
3724                         case CEE_LOCALLOC:
3725                                 CHECK_STACK (td, 1);
3726 #if SIZEOF_VOID_P == 8
3727                                 if (td->sp [-1].type == STACK_TYPE_I8)
3728                                         ADD_CODE(td, MINT_CONV_I4_I8);
3729 #endif
3730                                 ADD_CODE(td, MINT_LOCALLOC);
3731                                 if (td->sp != td->stack + 1)
3732                                         g_warning("CEE_LOCALLOC: stack not empty");
3733                                 ++td->ip;
3734                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3735                                 break;
3736 #if 0
3737                         case CEE_UNUSED57: ves_abort(); break;
3738 #endif
3739                         case CEE_ENDFILTER:
3740                                 ADD_CODE (td, MINT_ENDFILTER);
3741                                 ++td->ip;
3742                                 break;
3743                         case CEE_UNALIGNED_:
3744                                 td->ip += 2;
3745                                 break;
3746                         case CEE_VOLATILE_:
3747                                 ++td->ip;
3748                                 volatile_ = TRUE;
3749                                 break;
3750                         case CEE_TAIL_:
3751                                 ++td->ip;
3752                                 /* FIX: should do something? */;
3753                                 break;
3754                         case CEE_INITOBJ:
3755                                 CHECK_STACK(td, 1);
3756                                 token = read32 (td->ip + 1);
3757                                 klass = mini_get_class (method, token, generic_context);
3758                                 if (klass->valuetype) {
3759                                         ADD_CODE (td, MINT_INITOBJ);
3760                                         i32 = mono_class_value_size (klass, NULL);
3761                                         WRITE32 (td, &i32);
3762                                 } else {
3763                                         ADD_CODE (td, MINT_LDNULL);
3764                                         ADD_CODE (td, MINT_STIND_REF);
3765                                 }
3766                                 td->ip += 5;
3767                                 --td->sp;
3768                                 break;
3769                         case CEE_CPBLK:
3770                                 CHECK_STACK(td, 3);
3771                                 /* FIX? convert length to I8? */
3772                                 if (volatile_)
3773                                         ADD_CODE (td, MINT_MONO_MEMORY_BARRIER);
3774                                 ADD_CODE(td, MINT_CPBLK);
3775                                 BARRIER_IF_VOLATILE (td);
3776                                 td->sp -= 3;
3777                                 ++td->ip;
3778                                 break;
3779                         case CEE_READONLY_:
3780                                 readonly = TRUE;
3781                                 td->ip += 1;
3782                                 break;
3783                         case CEE_CONSTRAINED_:
3784                                 token = read32 (td->ip + 1);
3785                                 constrained_class = mini_get_class (method, token, generic_context);
3786                                 mono_class_init (constrained_class);
3787                                 td->ip += 5;
3788                                 break;
3789                         case CEE_INITBLK:
3790                                 CHECK_STACK(td, 3);
3791                                 BARRIER_IF_VOLATILE (td);
3792                                 ADD_CODE(td, MINT_INITBLK);
3793                                 td->sp -= 3;
3794                                 td->ip += 1;
3795                                 break;
3796                         case CEE_NO_:
3797                                 /* FIXME: implement */
3798                                 td->ip += 2;
3799                                 break;
3800                         case CEE_RETHROW: {
3801                                 int clause_index = td->clause_indexes [in_offset];
3802                                 g_assert (clause_index != -1);
3803                                 SIMPLE_OP (td, MINT_RETHROW);
3804                                 ADD_CODE (td, rtm->exvar_offsets [clause_index]);
3805                                 generating_code = 0;
3806                                 break;
3807                         }
3808                         case CEE_SIZEOF: {
3809                                 gint32 size;
3810                                 token = read32 (td->ip + 1);
3811                                 td->ip += 5;
3812                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3813                                         int align;
3814                                         MonoType *type = mono_type_create_from_typespec (image, token);
3815                                         size = mono_type_size (type, &align);
3816                                 } else {
3817                                         int align;
3818                                         MonoClass *szclass = mini_get_class (method, token, generic_context);
3819                                         mono_class_init (szclass);
3820 #if 0
3821                                         if (!szclass->valuetype)
3822                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3823 #endif
3824                                         size = mono_type_size (&szclass->byval_arg, &align);
3825                                 }
3826                                 ADD_CODE(td, MINT_LDC_I4);
3827                                 WRITE32(td, &size);
3828                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
3829                                 break;
3830                         }
3831                         case CEE_REFANYTYPE:
3832                                 ADD_CODE (td, MINT_REFANYTYPE);
3833                                 td->ip += 1;
3834                                 POP_VT (td, sizeof (MonoTypedRef));
3835                                 PUSH_VT (td, sizeof (gpointer));
3836                                 SET_TYPE(td->sp - 1, STACK_TYPE_VT, NULL);
3837                                 break;
3838                         default:
3839                                 g_error ("transform.c: Unimplemented opcode: 0xFE %02x (%s) at 0x%x\n", *td->ip, mono_opcode_name (256 + *td->ip), td->ip-header->code);
3840                         }
3841                         break;
3842                 default:
3843                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td->ip, td->ip-header->code);
3844                 }
3845
3846                 if (td->new_ip - td->new_code != new_in_start_offset)
3847                         td->last_new_ip = td->new_code + new_in_start_offset;
3848                 else if (td->is_bb_start [td->in_start - td->il_code])
3849                         td->is_bb_start [td->ip - td->il_code] = 1;
3850
3851                 td->last_ip = td->in_start;
3852         }
3853
3854         /* Handle relocations */
3855         for (int i = 0; i < td->relocs->len; ++i) {
3856                 Reloc *reloc = g_ptr_array_index (td->relocs, i);
3857
3858                 int offset = td->in_offsets [reloc->target] - reloc->offset;
3859
3860                 switch (reloc->type) {
3861                 case RELOC_SHORT_BRANCH:
3862                         g_assert (td->new_code [reloc->offset + 1] == 0xffff);
3863                         td->new_code [reloc->offset + 1] = offset;
3864                         break;
3865                 case RELOC_LONG_BRANCH: {
3866                         guint16 *v = (guint16 *) &offset;
3867                         g_assert (td->new_code [reloc->offset + 1] == 0xbeef);
3868                         g_assert (td->new_code [reloc->offset + 2] == 0xdead);
3869                         td->new_code [reloc->offset + 1] = *(guint16 *) v;
3870                         td->new_code [reloc->offset + 2] = *(guint16 *) (v + 1);
3871                         break;
3872                 }
3873                 case RELOC_SWITCH: {
3874                         guint16 *v = (guint16*)&offset;
3875                         td->new_code [reloc->offset] = *(guint16*)v;
3876                         td->new_code [reloc->offset + 1] = *(guint16*)(v + 1);
3877                         break;
3878                 }
3879                 default:
3880                         g_assert_not_reached ();
3881                         break;
3882                 }
3883         }
3884
3885         if (td->verbose_level) {
3886                 const guint16 *p = td->new_code;
3887                 printf("Runtime method: %s %p, VT stack size: %d\n", mono_method_full_name (method, TRUE), rtm, td->max_vt_sp);
3888                 printf("Calculated stack size: %d, stated size: %d\n", td->max_stack_height, header->max_stack);
3889                 while (p < td->new_ip) {
3890                         p = mono_interp_dis_mintop(td->new_code, p);
3891                         printf("\n");
3892                 }
3893         }
3894         g_assert (td->max_stack_height <= (header->max_stack + 1));
3895
3896         int code_len = td->new_ip - td->new_code;
3897
3898         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3899         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3900         rtm->code = mono_domain_alloc0 (domain, (td->new_ip - td->new_code) * sizeof (gushort));
3901         memcpy (rtm->code, td->new_code, (td->new_ip - td->new_code) * sizeof(gushort));
3902         g_free (td->new_code);
3903         rtm->new_body_start = rtm->code + body_start_offset;
3904         rtm->num_clauses = header->num_clauses;
3905         for (i = 0; i < header->num_clauses; i++) {
3906                 MonoExceptionClause *c = rtm->clauses + i;
3907                 int end_off = c->try_offset + c->try_len;
3908                 c->try_offset = td->in_offsets [c->try_offset];
3909                 c->try_len = td->in_offsets [end_off] - c->try_offset;
3910                 end_off = c->handler_offset + c->handler_len;
3911                 c->handler_offset = td->in_offsets [c->handler_offset];
3912                 c->handler_len = td->in_offsets [end_off] - c->handler_offset;
3913                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3914                         c->data.filter_offset = td->in_offsets [c->data.filter_offset];
3915         }
3916         rtm->vt_stack_size = td->max_vt_sp;
3917         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3918         rtm->data_items = mono_domain_alloc0 (domain, td->n_data_items * sizeof (td->data_items [0]));
3919         memcpy (rtm->data_items, td->data_items, td->n_data_items * sizeof (td->data_items [0]));
3920
3921         /* Save debug info */
3922         interp_save_debug_info (rtm, header, td, line_numbers);
3923
3924         /* Create a MonoJitInfo for the interpreted method by creating the interpreter IR as the native code. */
3925         int jinfo_len = mono_jit_info_size (0, header->num_clauses, 0);
3926         MonoJitInfo *jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, jinfo_len);
3927         jinfo->is_interp = 1;
3928         rtm->jinfo = jinfo;
3929         mono_jit_info_init (jinfo, method, (guint8*)rtm->code, code_len, 0, header->num_clauses, 0);
3930         for (i = 0; i < jinfo->num_clauses; ++i) {
3931                 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3932                 MonoExceptionClause *c = rtm->clauses + i;
3933
3934                 ei->flags = c->flags;
3935                 ei->try_start = (guint8*)(rtm->code + c->try_offset);
3936                 ei->try_end = (guint8*)(rtm->code + c->try_offset + c->try_len);
3937                 ei->handler_start = (guint8*)(rtm->code + c->handler_offset);
3938                 ei->exvar_offset = rtm->exvar_offsets [i];
3939                 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3940                         ei->data.filter = (guint8*)(rtm->code + c->data.filter_offset);
3941                 } else if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3942                 } else {
3943                         ei->data.catch_class = c->data.catch_class;
3944                 }
3945         }
3946
3947         save_seq_points (td);
3948
3949         g_free (td->in_offsets);
3950         for (i = 0; i < header->code_size; ++i)
3951                 g_free (td->stack_state [i]);
3952         g_free (td->stack_state);
3953         g_free (td->stack_height);
3954         g_free (td->vt_stack_size);
3955         g_free (td->data_items);
3956         g_free (td->stack);
3957         g_hash_table_destroy (td->data_hash);
3958         g_free (td->clause_indexes);
3959         g_ptr_array_free (td->seq_points, TRUE);
3960         g_array_free (line_numbers, TRUE);
3961         g_ptr_array_free (td->relocs, TRUE);
3962         mono_mempool_destroy (td->mempool);
3963 }
3964
3965 static mono_mutex_t calc_section;
3966
3967 void
3968 mono_interp_transform_init (void)
3969 {
3970         mono_os_mutex_init_recursive(&calc_section);
3971 }
3972
3973 MonoException *
3974 mono_interp_transform_method (InterpMethod *imethod, ThreadContext *context)
3975 {
3976         int i, align, size, offset;
3977         MonoMethod *method = imethod->method;
3978         MonoImage *image = method->klass->image;
3979         MonoMethodHeader *header = mono_method_get_header (method);
3980         MonoMethodSignature *signature = mono_method_signature (method);
3981         register const unsigned char *ip, *end;
3982         const MonoOpcode *opcode;
3983         MonoMethod *m;
3984         MonoClass *class;
3985         unsigned char *is_bb_start;
3986         int in;
3987         MonoVTable *method_class_vt;
3988         int backwards;
3989         MonoGenericContext *generic_context = NULL;
3990         MonoDomain *domain = imethod->domain;
3991
3992         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3993         method_class_vt = mono_class_vtable (domain, imethod->method->klass);
3994         if (!method_class_vt->initialized) {
3995                 MonoError error;
3996                 jmp_buf env;
3997                 InterpFrame *last_env_frame = context->env_frame;
3998                 jmp_buf *old_env = context->current_env;
3999                 error_init (&error);
4000
4001                 if (setjmp(env)) {
4002                         MonoException *failed = context->env_frame->ex;
4003                         context->env_frame->ex = NULL;
4004                         context->env_frame = last_env_frame;
4005                         context->current_env = old_env;
4006                         return failed;
4007                 }
4008                 context->env_frame = context->current_frame;
4009                 context->current_env = &env;
4010                 mono_runtime_class_init_full (method_class_vt, &error);
4011                 if (!mono_error_ok (&error)) {
4012                         return mono_error_convert_to_exception (&error);
4013                 }
4014                 context->env_frame = last_env_frame;
4015                 context->current_env = old_env;
4016         }
4017
4018         MONO_PROFILER_RAISE (jit_begin, (method));
4019
4020         if (mono_method_signature (method)->is_inflated)
4021                 generic_context = mono_method_get_context (method);
4022         else {
4023                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
4024                 if (generic_container)
4025                         generic_context = &generic_container->context;
4026         }
4027
4028         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4029                 MonoMethod *nm = NULL;
4030                 mono_os_mutex_lock(&calc_section);
4031                 if (imethod->transformed) {
4032                         mono_os_mutex_unlock(&calc_section);
4033                         MONO_PROFILER_RAISE (jit_done, (method, imethod->jinfo));
4034                         return NULL;
4035                 }
4036
4037                 /* assumes all internal calls with an array this are built in... */
4038                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
4039                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
4040                         signature = mono_method_signature (nm);
4041                 } else {
4042                         const char *name = method->name;
4043                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4044                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4045                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4046                                         g_assert (mi);
4047                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
4048                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
4049                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4050                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
4051                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4052                                         nm = mono_marshal_get_delegate_begin_invoke (method);
4053                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4054                                         nm = mono_marshal_get_delegate_end_invoke (method);
4055                                 }
4056                         }
4057                         if (nm == NULL) {
4058                                 imethod->code = g_malloc(sizeof(short));
4059                                 imethod->code[0] = MINT_CALLRUN;
4060                         }
4061                 }
4062                 if (nm == NULL) {
4063                         imethod->stack_size = sizeof (stackval); /* for tracing */
4064                         imethod->alloca_size = imethod->stack_size;
4065                         imethod->transformed = TRUE;
4066                         mono_os_mutex_unlock(&calc_section);
4067                         MONO_PROFILER_RAISE (jit_done, (method, NULL));
4068                         return NULL;
4069                 }
4070                 method = nm;
4071                 header = mono_method_get_header (nm);
4072                 mono_os_mutex_unlock(&calc_section);
4073         } else if (method->klass == mono_defaults.array_class) {
4074                 if (!strcmp (method->name, "UnsafeMov") || !strcmp (method->name, "UnsafeLoad")) {
4075                         mono_os_mutex_lock (&calc_section);
4076                         if (!imethod->transformed) {
4077                                 imethod->code = g_malloc (sizeof (short));
4078                                 imethod->code[0] = MINT_CALLRUN;
4079                                 imethod->stack_size = sizeof (stackval); /* for tracing */
4080                                 imethod->alloca_size = imethod->stack_size;
4081                                 imethod->transformed = TRUE;
4082                         }
4083                         mono_os_mutex_unlock(&calc_section);
4084                         MONO_PROFILER_RAISE (jit_done, (method, NULL));
4085                         return NULL;
4086                 } else if (!strcmp (method->name, "UnsafeStore")) {
4087                         g_error ("TODO");
4088                 }
4089         }
4090         g_assert ((signature->param_count + signature->hasthis) < 1000);
4091         g_assert (header->max_stack < 10000);
4092         /* intern the strings in the method. */
4093         ip = header->code;
4094         end = ip + header->code_size;
4095
4096         is_bb_start = g_malloc0(header->code_size);
4097         is_bb_start [0] = 1;
4098         while (ip < end) {
4099                 in = *ip;
4100                 if (in == 0xfe) {
4101                         ip++;
4102                         in = *ip + 256;
4103                 }
4104                 else if (in == 0xf0) {
4105                         ip++;
4106                         in = *ip + MONO_CEE_MONO_ICALL;
4107                 }
4108                 opcode = &mono_opcodes [in];
4109                 switch (opcode->argument) {
4110                 case MonoInlineNone:
4111                         ++ip;
4112                         break;
4113                 case MonoInlineString:
4114                         if (method->wrapper_type == MONO_WRAPPER_NONE)
4115                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
4116                         ip += 5;
4117                         break;
4118                 case MonoInlineType:
4119                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
4120                                 class = mini_get_class (method, read32 (ip + 1), generic_context);
4121                                 mono_class_init (class);
4122                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
4123 #if 0
4124                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
4125                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
4126                                         mono_class_vtable (domain, class);
4127 #endif
4128                         }
4129                         ip += 5;
4130                         break;
4131                 case MonoInlineMethod:
4132                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
4133                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
4134                                 if (m == NULL) {
4135                                         g_free (is_bb_start);
4136                                         g_error ("FIXME: where to get method and class string?");
4137                                         return NULL;
4138                                         // return mono_get_exception_missing_method ();
4139                                 }
4140                                 mono_class_init (m->klass);
4141                                 if (!mono_class_is_interface (m->klass))
4142                                         mono_class_vtable (domain, m->klass);
4143                         }
4144                         ip += 5;
4145                         break;
4146                 case MonoInlineField:
4147                 case MonoInlineSig:
4148                 case MonoInlineI:
4149                 case MonoInlineTok:
4150                 case MonoShortInlineR:
4151                         ip += 5;
4152                         break;
4153                 case MonoInlineBrTarget:
4154                         offset = read32 (ip + 1);
4155                         ip += 5;
4156                         backwards = offset < 0;
4157                         offset += ip - header->code;
4158                         g_assert (offset >= 0 && offset < header->code_size);
4159                         is_bb_start [offset] |= backwards ? 2 : 1;
4160                         break;
4161                 case MonoShortInlineBrTarget:
4162                         offset = ((gint8 *)ip) [1];
4163                         ip += 2;
4164                         backwards = offset < 0;
4165                         offset += ip - header->code;
4166                         g_assert (offset >= 0 && offset < header->code_size);
4167                         is_bb_start [offset] |= backwards ? 2 : 1;
4168                         break;
4169                 case MonoInlineVar:
4170                         ip += 3;
4171                         break;
4172                 case MonoShortInlineVar:
4173                 case MonoShortInlineI:
4174                         ip += 2;
4175                         break;
4176                 case MonoInlineSwitch: {
4177                         guint32 n;
4178                         const unsigned char *next_ip;
4179                         ++ip;
4180                         n = read32 (ip);
4181                         ip += 4;
4182                         next_ip = ip + 4 * n;
4183                         for (i = 0; i < n; i++) {
4184                                 offset = read32 (ip);
4185                                 backwards = offset < 0;
4186                                 offset += next_ip - header->code;
4187                                 g_assert (offset >= 0 && offset < header->code_size);
4188                                 is_bb_start [offset] |= backwards ? 2 : 1;
4189                                 ip += 4;
4190                         }
4191                         break;
4192                 }
4193                 case MonoInlineR:
4194                 case MonoInlineI8:
4195                         ip += 9;
4196                         break;
4197                 default:
4198                         g_assert_not_reached ();
4199                 }
4200         }
4201         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
4202
4203         /* the rest needs to be locked so it is only done once */
4204         mono_os_mutex_lock(&calc_section);
4205         if (imethod->transformed) {
4206                 mono_os_mutex_unlock(&calc_section);
4207                 g_free (is_bb_start);
4208                 MONO_PROFILER_RAISE (jit_done, (method, imethod->jinfo));
4209                 return NULL;
4210         }
4211
4212         imethod->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
4213         imethod->stack_size = (sizeof (stackval)) * (header->max_stack + 2); /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
4214         imethod->stack_size = (imethod->stack_size + 7) & ~7;
4215         offset = 0;
4216         for (i = 0; i < header->num_locals; ++i) {
4217                 size = mono_type_size (header->locals [i], &align);
4218                 offset += align - 1;
4219                 offset &= ~(align - 1);
4220                 imethod->local_offsets [i] = offset;
4221                 offset += size;
4222         }
4223         offset = (offset + 7) & ~7;
4224
4225         imethod->exvar_offsets = g_malloc (header->num_clauses * sizeof (guint32));
4226         for (i = 0; i < header->num_clauses; i++) {
4227                 offset += sizeof (MonoObject*);
4228                 imethod->exvar_offsets [i] = offset;
4229         }
4230         offset = (offset + 7) & ~7;
4231
4232         imethod->locals_size = offset;
4233         g_assert (imethod->locals_size < 65536);
4234         offset = 0;
4235         imethod->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
4236
4237         if (signature->hasthis) {
4238                 g_assert (!signature->pinvoke);
4239                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
4240                 offset += align - 1;
4241                 offset &= ~(align - 1);
4242                 imethod->arg_offsets [0] = offset;
4243                 offset += size;
4244         }
4245
4246         for (i = 0; i < signature->param_count; ++i) {
4247                 if (signature->pinvoke) {
4248                         guint32 dummy;
4249                         size = mono_type_native_stack_size (signature->params [i], &dummy);
4250                         align = 8;
4251                 }
4252                 else
4253                         size = mono_type_stack_size (signature->params [i], &align);
4254                 offset += align - 1;
4255                 offset &= ~(align - 1);
4256                 imethod->arg_offsets [i + !!signature->hasthis] = offset;
4257                 offset += size;
4258         }
4259         offset = (offset + 7) & ~7;
4260         imethod->args_size = offset;
4261         g_assert (imethod->args_size < 10000);
4262
4263         generate (method, imethod, is_bb_start, generic_context);
4264
4265         g_free (is_bb_start);
4266
4267         // FIXME: Add a different callback ?
4268         MONO_PROFILER_RAISE (jit_done, (method, imethod->jinfo));
4269         imethod->transformed = TRUE;
4270         mono_os_mutex_unlock(&calc_section);
4271
4272         return NULL;
4273 }
4274