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
  19 #include <mono/mini/mini.h>
  20
  21 #include "mintops.h"
  22 #include "interp-internals.h"
  23 #include "interp.h"
  24
  25 // TODO: export from marshal.c
  26 MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
  27
  28 #define DEBUG 0
  29
  30 typedef struct
  31 {
  32         MonoClass *klass;
  33         unsigned char type;
  34         unsigned char flags;
  35 } StackInfo;
  36
  37 typedef struct
  38 {
  39         MonoMethod *method;
  40         MonoMethodHeader *header;
  41         RuntimeMethod *rtm;
  42         const unsigned char *il_code;
  43         const unsigned char *ip;
  44         const unsigned char *last_ip;
  45         const unsigned char *in_start;
  46         int code_size;
  47         int *in_offsets;
  48         int *forward_refs;
  49         StackInfo **stack_state;
  50         int *stack_height;
  51         int *vt_stack_size;
  52         unsigned char *is_bb_start;
  53         unsigned short *new_code;
  54         unsigned short *new_code_end;
  55         unsigned short *new_ip;
  56         unsigned short *last_new_ip;
  57         unsigned int max_code_size;
  58         StackInfo *stack;
  59         StackInfo *sp;
  60         unsigned int max_stack_height;
  61         unsigned int vt_sp;
  62         unsigned int max_vt_sp;
  63         int n_data_items;
  64         int max_data_items;
  65         void **data_items;
  66         GHashTable *data_hash;
  67 } TransformData;
  68
  69 #define MINT_TYPE_I1 0
  70 #define MINT_TYPE_U1 1
  71 #define MINT_TYPE_I2 2
  72 #define MINT_TYPE_U2 3
  73 #define MINT_TYPE_I4 4
  74 #define MINT_TYPE_I8 5
  75 #define MINT_TYPE_R4 6
  76 #define MINT_TYPE_R8 7
  77 #define MINT_TYPE_O  8
  78 #define MINT_TYPE_P  9
  79 #define MINT_TYPE_VT 10
  80
  81 #define STACK_TYPE_I4 0
  82 #define STACK_TYPE_I8 1
  83 #define STACK_TYPE_R8 2
  84 #define STACK_TYPE_O  3
  85 #define STACK_TYPE_VT 4
  86 #define STACK_TYPE_MP 5
  87 #define STACK_TYPE_F  6
  88
  89 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
  90
  91 #if SIZEOF_VOID_P == 8
  92 #define STACK_TYPE_I STACK_TYPE_I8
  93 #else
  94 #define STACK_TYPE_I STACK_TYPE_I4
  95 #endif
  96
  97 static int stack_type [] = {
  98         STACK_TYPE_I4, /*I1*/
  99         STACK_TYPE_I4, /*U1*/
 100         STACK_TYPE_I4, /*I2*/
 101         STACK_TYPE_I4, /*U2*/
 102         STACK_TYPE_I4, /*I4*/
 103         STACK_TYPE_I8, /*I8*/
 104         STACK_TYPE_R8, /*R4*/
 105         STACK_TYPE_R8, /*R8*/
 106         STACK_TYPE_O,  /*O*/
 107         STACK_TYPE_MP, /*P*/
 108         STACK_TYPE_VT
 109 };
 110
 111 static void
 112 grow_code (TransformData *td)
 113 {
 114         unsigned int old_ip_offset = td->new_ip - td->new_code;
 115         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 116         g_assert (old_ip_offset <= td->max_code_size);
 117         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 118         td->new_code_end = td->new_code + td->max_code_size;
 119         td->new_ip = td->new_code + old_ip_offset;
 120         td->last_new_ip = td->new_code + old_last_ip_offset;
 121 }
 122
 123 #define ENSURE_CODE(td, n) \
 124         do { \
 125                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 126                         grow_code (td); \
 127         } while (0)
 128
 129 #define ADD_CODE(td, n) \
 130         do { \
 131                 if ((td)->new_ip == (td)->new_code_end) \
 132                         grow_code (td); \
 133                 *(td)->new_ip++ = (n); \
 134         } while (0)
 135
 136 #define CHECK_STACK(td, n) \
 137         do { \
 138                 int stack_size = (td)->sp - (td)->stack; \
 139                 if (stack_size < (n)) \
 140                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 141                                 (td)->method->klass->name, (td)->method->name, \
 142                                 stack_size, n, (td)->ip - (td)->il_code); \
 143         } while (0)
 144
 145 #define ENSURE_I4(td, sp_off) \
 146         do { \
 147                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 148                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 149         } while (0)
 150
 151 static void
 152 handle_branch(TransformData *td, int short_op, int long_op, int offset)
 153 {
 154         int shorten_branch = 0;
 155         int target = td->ip + offset - td->il_code;
 156         if (target < 0 || target >= td->code_size)
 157                 g_assert_not_reached ();
 158         if (offset > 0 && td->stack_height [target] < 0) {
 159                 td->stack_height [target] = td->sp - td->stack;
 160                 if (td->stack_height [target] > 0)
 161                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 162                 td->vt_stack_size [target] = td->vt_sp;
 163         }
 164         if (offset < 0) {
 165                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 166                 if (offset >= -32768) {
 167                         shorten_branch = 1;
 168                 }
 169         } else {
 170                 int prev = td->forward_refs [target];
 171                 td->forward_refs [td->ip - td->il_code] = prev;
 172                 td->forward_refs [target] = td->ip - td->il_code;
 173                 offset = 0;
 174                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 175                         shorten_branch = 1;
 176         }
 177         if (shorten_branch) {
 178                 ADD_CODE(td, short_op);
 179                 ADD_CODE(td, offset);
 180         } else {
 181                 ADD_CODE(td, long_op);
 182                 ADD_CODE(td, * (unsigned short *)(&offset));
 183                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 184         }
 185 }
 186
 187 static void
 188 one_arg_branch(TransformData *td, int mint_op, int offset)
 189 {
 190         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 191         int long_op = mint_op + type - STACK_TYPE_I4;
 192         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 193         CHECK_STACK(td, 1);
 194         --td->sp;
 195         handle_branch (td, short_op, long_op, offset);
 196 }
 197
 198 static void
 199 two_arg_branch(TransformData *td, int mint_op, int offset)
 200 {
 201         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 202         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 203         int long_op = mint_op + type1 - STACK_TYPE_I4;
 204         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 205         CHECK_STACK(td, 2);
 206         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 207                 ADD_CODE(td, MINT_CONV_I8_I4);
 208                 td->in_offsets [td->ip - td->il_code]++;
 209         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 210                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 211                 td->in_offsets [td->ip - td->il_code]++;
 212         } else if (type1 != type2) {
 213                 g_warning("%s.%s: branch type mismatch %d %d",
 214                         td->method->klass->name, td->method->name,
 215                         td->sp [-1].type, td->sp [-2].type);
 216         }
 217         td->sp -= 2;
 218         handle_branch (td, short_op, long_op, offset);
 219 }
 220
 221 static void
 222 unary_arith_op(TransformData *td, int mint_op)
 223 {
 224         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 225         CHECK_STACK(td, 1);
 226         ADD_CODE(td, op);
 227 }
 228
 229 static void
 230 binary_arith_op(TransformData *td, int mint_op)
 231 {
 232         int type1 = td->sp [-2].type;
 233         int type2 = td->sp [-1].type;
 234         int op;
 235 #if SIZEOF_VOID_P == 8
 236         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 237                 ADD_CODE(td, MINT_CONV_I8_I4);
 238                 type2 = STACK_TYPE_I8;
 239         }
 240         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 241                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 242                 type1 = STACK_TYPE_I8;
 243                 td->sp [-2].type = STACK_TYPE_I8;
 244         }
 245 #endif
 246         if (type1 == STACK_TYPE_MP)
 247                 type1 = STACK_TYPE_I;
 248         if (type2 == STACK_TYPE_MP)
 249                 type2 = STACK_TYPE_I;
 250         if (type1 != type2) {
 251                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 252                         td->method->klass->name, td->method->name,
 253                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 254         }
 255         op = mint_op + type1 - STACK_TYPE_I4;
 256         CHECK_STACK(td, 2);
 257         ADD_CODE(td, op);
 258         --td->sp;
 259 }
 260
 261 static void
 262 binary_int_op(TransformData *td, int mint_op)
 263 {
 264         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 265         CHECK_STACK(td, 2);
 266         if (td->sp [-1].type != td->sp [-2].type)
 267                 g_warning("%s.%s: int type mismatch", td->method->klass->name, td->method->name);
 268         ADD_CODE(td, op);
 269         --td->sp;
 270 }
 271
 272 static void
 273 shift_op(TransformData *td, int mint_op)
 274 {
 275         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 276         CHECK_STACK(td, 2);
 277         if (td->sp [-1].type != STACK_TYPE_I4) {
 278                 g_warning("%s.%s: shift type mismatch %d",
 279                         td->method->klass->name, td->method->name,
 280                         td->sp [-2].type);
 281         }
 282         ADD_CODE(td, op);
 283         --td->sp;
 284 }
 285
 286 static int
 287 mint_type(MonoType *type)
 288 {
 289         if (type->byref)
 290                 return MINT_TYPE_P;
 291 enum_type:
 292         switch (type->type) {
 293         case MONO_TYPE_I1:
 294                 return MINT_TYPE_I1;
 295         case MONO_TYPE_U1:
 296         case MONO_TYPE_BOOLEAN:
 297                 return MINT_TYPE_U1;
 298         case MONO_TYPE_I2:
 299                 return MINT_TYPE_I2;
 300         case MONO_TYPE_U2:
 301         case MONO_TYPE_CHAR:
 302                 return MINT_TYPE_U2;
 303         case MONO_TYPE_I4:
 304         case MONO_TYPE_U4:
 305                 return MINT_TYPE_I4;
 306         case MONO_TYPE_I:
 307         case MONO_TYPE_U:
 308 #if SIZEOF_VOID_P == 4
 309                 return MINT_TYPE_I4;
 310 #else
 311                 return MINT_TYPE_I8;
 312 #endif
 313         case MONO_TYPE_PTR:
 314                 return MINT_TYPE_P;
 315         case MONO_TYPE_R4:
 316                 return MINT_TYPE_R4;
 317         case MONO_TYPE_I8:
 318         case MONO_TYPE_U8:
 319                 return MINT_TYPE_I8;
 320         case MONO_TYPE_R8:
 321                 return MINT_TYPE_R8;
 322         case MONO_TYPE_STRING:
 323         case MONO_TYPE_SZARRAY:
 324         case MONO_TYPE_CLASS:
 325         case MONO_TYPE_OBJECT:
 326         case MONO_TYPE_ARRAY:
 327                 return MINT_TYPE_O;
 328         case MONO_TYPE_VALUETYPE:
 329                 if (type->data.klass->enumtype) {
 330                         type = mono_class_enum_basetype (type->data.klass);
 331                         goto enum_type;
 332                 } else
 333                         return MINT_TYPE_VT;
 334         case MONO_TYPE_GENERICINST:
 335                 type = &type->data.generic_class->container_class->byval_arg;
 336                 goto enum_type;
 337         default:
 338                 g_warning ("got type 0x%02x", type->type);
 339                 g_assert_not_reached ();
 340         }
 341         return -1;
 342 }
 343
 344 static int
 345 can_store (int stack_type, int var_type)
 346 {
 347         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 348                 stack_type = STACK_TYPE_I;
 349         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 350                 var_type = STACK_TYPE_I;
 351         return stack_type == var_type;
 352 }
 353
 354 #define SET_SIMPLE_TYPE(s, ty) \
 355         do { \
 356                 (s)->type = (ty); \
 357                 (s)->flags = 0; \
 358                 (s)->klass = NULL; \
 359         } while (0)
 360
 361 #define SET_TYPE(s, ty, k) \
 362         do { \
 363                 (s)->type = (ty); \
 364                 (s)->flags = 0; \
 365                 (s)->klass = k; \
 366         } while (0)
 367
 368 #define PUSH_SIMPLE_TYPE(td, ty) \
 369         do { \
 370                 int sp_height; \
 371                 (td)->sp++; \
 372                 sp_height = (td)->sp - (td)->stack; \
 373                 if (sp_height > (td)->max_stack_height) \
 374                         (td)->max_stack_height = sp_height; \
 375                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 376         } while (0)
 377
 378 #define PUSH_TYPE(td, ty, k) \
 379         do { \
 380                 int sp_height; \
 381                 (td)->sp++; \
 382                 sp_height = (td)->sp - (td)->stack; \
 383                 if (sp_height > (td)->max_stack_height) \
 384                         (td)->max_stack_height = sp_height; \
 385                 SET_TYPE((td)->sp - 1, ty, k); \
 386         } while (0)
 387
 388 #define PUSH_VT(td, size) \
 389         do { \
 390                 (td)->vt_sp += ((size) + 7) & ~7; \
 391                 if ((td)->vt_sp > (td)->max_vt_sp) \
 392                         (td)->max_vt_sp = (td)->vt_sp; \
 393         } while (0)
 394
 395 #define POP_VT(td, size) \
 396         do { \
 397                 (td)->vt_sp -= ((size) + 7) & ~7; \
 398         } while (0)
 399
 400 #if NO_UNALIGNED_ACCESS
 401 #define WRITE32(td, v) \
 402         do { \
 403                 ENSURE_CODE(td, 2); \
 404                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 405                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 406                 (td)->new_ip += 2; \
 407         } while (0)
 408
 409 #define WRITE64(td, v) \
 410         do { \
 411                 ENSURE_CODE(td, 4); \
 412                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 413                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 414                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 415                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 416                 (td)->new_ip += 4; \
 417         } while (0)
 418 #else
 419 #define WRITE32(td, v) \
 420         do { \
 421                 ENSURE_CODE(td, 2); \
 422                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 423                 (td)->new_ip += 2; \
 424         } while (0)
 425
 426 #define WRITE64(td, v) \
 427         do { \
 428                 ENSURE_CODE(td, 4); \
 429                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 430                 (td)->new_ip += 4; \
 431         } while (0)
 432
 433 #endif
 434
 435 static void
 436 load_arg(TransformData *td, int n)
 437 {
 438         int mt;
 439         MonoClass *klass = NULL;
 440         MonoType *type;
 441
 442         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 443         if (hasthis && n == 0)
 444                 type = &td->method->klass->byval_arg;
 445         else
 446                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 447
 448         mt = mint_type (type);
 449         if (mt == MINT_TYPE_VT) {
 450                 gint32 size;
 451                 klass = mono_class_from_mono_type (type);
 452                 if (mono_method_signature (td->method)->pinvoke)
 453                         size = mono_class_native_size (klass, NULL);
 454                 else
 455                         size = mono_class_value_size (klass, NULL);
 456
 457                 if (hasthis && n == 0) {
 458                         mt = MINT_TYPE_P;
 459                         ADD_CODE (td, MINT_LDARG_P);
 460                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 461                         klass = NULL;
 462                 } else {
 463                         PUSH_VT (td, size);
 464                         ADD_CODE (td, MINT_LDARG_VT);
 465                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 466                         WRITE32 (td, &size);
 467                 }
 468         } else {
 469                 if (hasthis && n == 0) {
 470                         mt = MINT_TYPE_P;
 471                         ADD_CODE (td, MINT_LDARG_P);
 472                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 473                         klass = NULL;
 474                 } else {
 475                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 476                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 477                         if (mt == MINT_TYPE_O)
 478                                 klass = mono_class_from_mono_type (type);
 479                 }
 480         }
 481         PUSH_TYPE(td, stack_type[mt], klass);
 482 }
 483
 484 static void
 485 store_arg(TransformData *td, int n)
 486 {
 487         int mt;
 488         CHECK_STACK (td, 1);
 489         MonoType *type;
 490
 491         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 492         if (hasthis && n == 0)
 493                 type = &td->method->klass->byval_arg;
 494         else
 495                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 496
 497         mt = mint_type (type);
 498         if (mt == MINT_TYPE_VT) {
 499                 gint32 size;
 500                 MonoClass *klass = mono_class_from_mono_type (type);
 501                 if (mono_method_signature (td->method)->pinvoke)
 502                         size = mono_class_native_size (klass, NULL);
 503                 else
 504                         size = mono_class_value_size (klass, NULL);
 505                 ADD_CODE(td, MINT_STARG_VT);
 506                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 507                 WRITE32(td, &size);
 508                 if (td->sp [-1].type == STACK_TYPE_VT)
 509                         POP_VT(td, size);
 510         } else {
 511                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 512                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 513         }
 514         --td->sp;
 515 }
 516
 517 static void
 518 store_inarg(TransformData *td, int n)
 519 {
 520         MonoType *type;
 521         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 522         if (hasthis && n == 0)
 523                 type = &td->method->klass->byval_arg;
 524         else
 525                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 526
 527         int mt = mint_type (type);
 528         if (hasthis && n == 0) {
 529                 ADD_CODE (td, MINT_STINARG_P);
 530                 ADD_CODE (td, n);
 531                 return;
 532         }
 533         if (mt == MINT_TYPE_VT) {
 534                 MonoClass *klass = mono_class_from_mono_type (type);
 535                 gint32 size;
 536                 if (mono_method_signature (td->method)->pinvoke)
 537                         size = mono_class_native_size (klass, NULL);
 538                 else
 539                         size = mono_class_value_size (klass, NULL);
 540                 ADD_CODE(td, MINT_STINARG_VT);
 541                 ADD_CODE(td, n);
 542                 WRITE32(td, &size);
 543         } else {
 544                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 545                 ADD_CODE(td, n);
 546         }
 547 }
 548
 549 static void
 550 load_local(TransformData *td, int n)
 551 {
 552         MonoType *type = td->header->locals [n];
 553         int mt = mint_type (type);
 554         int offset = td->rtm->local_offsets [n];
 555         MonoClass *klass = NULL;
 556         if (mt == MINT_TYPE_VT) {
 557                 klass = mono_class_from_mono_type (type);
 558                 gint32 size = mono_class_value_size (klass, NULL);
 559                 PUSH_VT(td, size);
 560                 ADD_CODE(td, MINT_LDLOC_VT);
 561                 ADD_CODE(td, offset); /*FIX for large offset */
 562                 WRITE32(td, &size);
 563         } else {
 564                 g_assert (mt < MINT_TYPE_VT);
 565                 if (mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 566                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 567                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 568                 } else if (mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 569                         td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 570                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 571                 } else {
 572                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 573                         ADD_CODE(td, offset); /*FIX for large offset */
 574                 }
 575                 if (mt == MINT_TYPE_O)
 576                         klass = mono_class_from_mono_type (type);
 577         }
 578         PUSH_TYPE(td, stack_type[mt], klass);
 579 }
 580
 581 static void
 582 store_local(TransformData *td, int n)
 583 {
 584         MonoType *type = td->header->locals [n];
 585         int mt = mint_type (type);
 586         int offset = td->rtm->local_offsets [n];
 587         CHECK_STACK (td, 1);
 588 #if SIZEOF_VOID_P == 8
 589         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 590                 ADD_CODE(td, MINT_CONV_I8_I4);
 591                 td->sp [-1].type = STACK_TYPE_I8;
 592         }
 593 #endif
 594         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 595                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 596                         td->method->klass->name, td->method->name,
 597                         stack_type [mt], td->sp [-1].type);
 598         }
 599         if (mt == MINT_TYPE_VT) {
 600                 MonoClass *klass = mono_class_from_mono_type (type);
 601                 gint32 size = mono_class_value_size (klass, NULL);
 602                 ADD_CODE(td, MINT_STLOC_VT);
 603                 ADD_CODE(td, offset); /*FIX for large offset */
 604                 WRITE32(td, &size);
 605                 if (td->sp [-1].type == STACK_TYPE_VT)
 606                         POP_VT(td, size);
 607         } else {
 608                 g_assert (mt < MINT_TYPE_VT);
 609                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 610                 ADD_CODE(td, offset); /*FIX for large offset */
 611         }
 612         --td->sp;
 613 }
 614
 615 #define SIMPLE_OP(td, op) \
 616         do { \
 617                 ADD_CODE(&td, op); \
 618                 ++td.ip; \
 619         } while (0)
 620
 621 static guint16
 622 get_data_item_index (TransformData *td, void *ptr)
 623 {
 624         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 625         guint index;
 626         if (p != NULL)
 627                 return GPOINTER_TO_UINT (p) - 1;
 628         if (td->max_data_items == td->n_data_items) {
 629                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 630                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 631         }
 632         index = td->n_data_items;
 633         td->data_items [index] = ptr;
 634         ++td->n_data_items;
 635         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 636         return index;
 637 }
 638
 639 static gboolean
 640 jit_call_supported (MonoMethod *method, MonoMethodSignature *sig)
 641 {
 642         GSList *l;
 643
 644         if (sig->param_count > 6)
 645                 return FALSE;
 646         if (sig->pinvoke)
 647                 return FALSE;
 648         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 649                 return FALSE;
 650         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
 651                 return FALSE;
 652         if (method->is_inflated)
 653                 return FALSE;
 654         if (method->string_ctor)
 655                 return FALSE;
 656
 657         for (l = jit_classes; l; l = l->next) {
 658                 char *class_name = l->data;
 659                 // FIXME: Namespaces
 660                 if (!strcmp (method->klass->name, class_name))
 661                         return TRUE;
 662         }
 663
 664         //return TRUE;
 665         return FALSE;
 666 }
 667
 668 static void
 669 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)
 670 {
 671         MonoImage *image = method->klass->image;
 672         MonoMethodSignature *csignature;
 673         MonoError error;
 674         int virtual = *td->ip == CEE_CALLVIRT;
 675         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 676         int i;
 677         guint32 vt_stack_used = 0;
 678         guint32 vt_res_size = 0;
 679         int op = -1;
 680         int native = 0;
 681         int is_void = 0;
 682
 683         guint32 token = read32 (td->ip + 1);
 684
 685         if (target_method == NULL) {
 686                 if (calli) {
 687                         CHECK_STACK(td, 1);
 688                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 689                         --td->sp;
 690                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 691                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 692                         else
 693                                 csignature = mono_metadata_parse_signature (image, token);
 694
 695                         if (generic_context) {
 696                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 697                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 698                         }
 699
 700                         target_method = NULL;
 701                 } else {
 702                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 703                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 704                         else
 705                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 706                         csignature = mono_method_signature (target_method);
 707                         if (target_method->klass == mono_defaults.string_class) {
 708                                 if (target_method->name [0] == 'g') {
 709                                         if (strcmp (target_method->name, "get_Chars") == 0)
 710                                                 op = MINT_GETCHR;
 711                                         else if (strcmp (target_method->name, "get_Length") == 0)
 712                                                 op = MINT_STRLEN;
 713                                 }
 714                         } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 715                                 if (!strcmp (target_method->name, "get_Rank")) {
 716                                         op = MINT_ARRAY_RANK;
 717                                 } else if (!strcmp (target_method->name, "get_Length")) {
 718                                         op = MINT_LDLEN;
 719                                 } else if (!strcmp (target_method->name, "Address")) {
 720                                         op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 721                                 }
 722                         } else if (target_method && generic_context) {
 723                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 724                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 725                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 726                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 727                         }
 728                 }
 729         } else {
 730                 csignature = mono_method_signature (target_method);
 731         }
 732
 733         if (constrained_class) {
 734                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 735                         /* Use the corresponding method from the base type to avoid boxing */
 736                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 737                         g_assert (base_type);
 738                         constrained_class = mono_class_from_mono_type (base_type);
 739                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 740                         g_assert (target_method);
 741                 }
 742         }
 743
 744         if (constrained_class) {
 745                 mono_class_setup_vtable (constrained_class);
 746 #if DEBUG_INTERP
 747                 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);
 748 #endif
 749                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 750 #if DEBUG_INTERP
 751                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 752 #endif
 753                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 754                 mono_class_setup_vtable (target_method->klass);
 755
 756                 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)) {
 757                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 758                                 /* managed pointer on the stack, we need to deref that puppy */
 759                                 ADD_CODE (td, MINT_LDIND_I);
 760                                 ADD_CODE (td, csignature->param_count);
 761                         }
 762                         ADD_CODE (td, MINT_BOX);
 763                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 764                         ADD_CODE (td, csignature->param_count);
 765                 } else if (!constrained_class->valuetype) {
 766                         /* managed pointer on the stack, we need to deref that puppy */
 767                         ADD_CODE (td, MINT_LDIND_I);
 768                         ADD_CODE (td, csignature->param_count);
 769                 } else {
 770                         if (target_method->klass->valuetype) {
 771                                 /* Own method */
 772                         } else {
 773                                 /* Interface method */
 774                                 int ioffset, slot;
 775
 776                                 mono_class_setup_vtable (constrained_class);
 777                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 778                                 if (ioffset == -1)
 779                                         g_error ("type load error: constrained_class");
 780                                 slot = mono_method_get_vtable_slot (target_method);
 781                                 if (slot == -1)
 782                                         g_error ("type load error: target_method->klass");
 783                                 target_method = constrained_class->vtable [ioffset + slot];
 784
 785                                 if (target_method->klass == mono_defaults.enum_class) {
 786                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 787                                                 /* managed pointer on the stack, we need to deref that puppy */
 788                                                 ADD_CODE (td, MINT_LDIND_I);
 789                                                 ADD_CODE (td, csignature->param_count);
 790                                         }
 791                                         ADD_CODE (td, MINT_BOX);
 792                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 793                                         ADD_CODE (td, csignature->param_count);
 794                                 }
 795                         }
 796                         virtual = FALSE;
 797                 }
 798         }
 799
 800         if (target_method)
 801                 mono_class_init (target_method->klass);
 802
 803         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 804         if (!calli && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 805                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 806                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
 807                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 808                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 809
 810                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 811                         int offset;
 812                         if (mono_interp_traceopt)
 813                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 814
 815                         for (i = csignature->param_count - 1 + !!csignature->hasthis; i >= 0; --i)
 816                                 store_arg (td, i);
 817
 818                         ADD_CODE(td, MINT_BR_S);
 819                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 820                         ADD_CODE(td, offset);
 821                         if (!is_bb_start [td->ip + 5 - td->il_code])
 822                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 823                         td->ip += 5;
 824                         return;
 825                 } else {
 826                         /* mheader might not exist if this is a delegate invoc, etc */
 827                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 828                                 if (mono_interp_traceopt)
 829                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 830                                 for (i = 0; i < csignature->param_count; i++)
 831                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 832                                         ADD_CODE (td, 0);
 833                                 if (csignature->hasthis) {
 834                                         if (virtual)
 835                                                 ADD_CODE(td, MINT_CKNULL);
 836                                         ADD_CODE (td, MINT_POP);
 837                                         ADD_CODE (td, 0);
 838                                 }
 839                                 td->sp -= csignature->param_count + csignature->hasthis;
 840                                 td->ip += 5;
 841                                 return;
 842                         }
 843                 }
 844         }
 845         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 846                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 847                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 848                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 849                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 850         }
 851         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 852         td->sp -= csignature->param_count + !!csignature->hasthis;
 853         for (i = 0; i < csignature->param_count; ++i) {
 854                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 855                         gint32 size;
 856                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 857                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 858                                 size = mono_class_native_size (klass, NULL);
 859                         else
 860                                 size = mono_class_value_size (klass, NULL);
 861                         size = (size + 7) & ~7;
 862                         vt_stack_used += size;
 863                 }
 864         }
 865
 866         /* need to handle typedbyref ... */
 867         if (csignature->ret->type != MONO_TYPE_VOID) {
 868                 int mt = mint_type(csignature->ret);
 869                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 870                 if (mt == MINT_TYPE_VT) {
 871                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 872                                 vt_res_size = mono_class_native_size (klass, NULL);
 873                         else
 874                                 vt_res_size = mono_class_value_size (klass, NULL);
 875                         PUSH_VT(td, vt_res_size);
 876                 }
 877                 PUSH_TYPE(td, stack_type[mt], klass);
 878         } else
 879                 is_void = TRUE;
 880
 881         if (op >= 0) {
 882                 ADD_CODE (td, op);
 883 #if SIZEOF_VOID_P == 8
 884                 if (op == MINT_LDLEN)
 885                         ADD_CODE (td, MINT_CONV_I4_I8);
 886 #endif
 887                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 888                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 889                         ADD_CODE (td, 1 + target_method->klass->rank);
 890                 }
 891         } else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
 892                 ADD_CODE(td, MINT_JIT_CALL);
 893                 ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 894                 mono_error_assert_ok (&error);
 895         } else {
 896                 if (calli)
 897                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 898                 else if (virtual)
 899                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 900                 else
 901                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 902
 903                 if (calli) {
 904                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 905                 } else {
 906                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 907                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 908                 }
 909         }
 910         td->ip += 5;
 911         if (vt_stack_used != 0 || vt_res_size != 0) {
 912                 ADD_CODE(td, MINT_VTRESULT);
 913                 ADD_CODE(td, vt_res_size);
 914                 WRITE32(td, &vt_stack_used);
 915                 td->vt_sp -= vt_stack_used;
 916         }
 917 }
 918
 919 static void
 920 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
 921 {
 922         MonoMethodHeader *header = mono_method_get_header (method);
 923         MonoMethodSignature *signature = mono_method_signature (method);
 924         MonoImage *image = method->klass->image;
 925         MonoDomain *domain = mono_domain_get ();
 926         MonoClass *constrained_class = NULL;
 927         MonoError error;
 928         int offset, mt, i, i32;
 929         gboolean readonly = FALSE;
 930         MonoClass *klass;
 931         MonoClassField *field;
 932         const unsigned char *end;
 933         int new_in_start_offset;
 934         int body_start_offset;
 935         int target;
 936         guint32 token;
 937         TransformData td;
 938         int generating_code = 1;
 939
 940         memset(&td, 0, sizeof(td));
 941         td.method = method;
 942         td.rtm = rtm;
 943         td.is_bb_start = is_bb_start;
 944         td.il_code = header->code;
 945         td.code_size = header->code_size;
 946         td.header = header;
 947         td.max_code_size = td.code_size;
 948         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 949         td.new_code_end = td.new_code + td.max_code_size;
 950         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 951         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 952         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 953         td.stack_height = g_malloc(header->code_size * sizeof(int));
 954         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 955         td.n_data_items = 0;
 956         td.max_data_items = 0;
 957         td.data_items = NULL;
 958         td.data_hash = g_hash_table_new (NULL, NULL);
 959         rtm->data_items = td.data_items;
 960         for (i = 0; i < header->code_size; i++) {
 961                 td.forward_refs [i] = -1;
 962                 td.stack_height [i] = -1;
 963         }
 964         td.new_ip = td.new_code;
 965         td.last_new_ip = NULL;
 966
 967         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
 968         td.sp = td.stack;
 969         td.max_stack_height = 0;
 970
 971         for (i = 0; i < header->num_clauses; i++) {
 972                 MonoExceptionClause *c = header->clauses + i;
 973                 td.stack_height [c->handler_offset] = 0;
 974                 td.vt_stack_size [c->handler_offset] = 0;
 975                 td.is_bb_start [c->handler_offset] = 1;
 976
 977                 td.stack_height [c->handler_offset] = 1;
 978                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 979                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 980                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 981
 982                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
 983                         td.stack_height [c->data.filter_offset] = 0;
 984                         td.vt_stack_size [c->data.filter_offset] = 0;
 985                         td.is_bb_start [c->data.filter_offset] = 1;
 986
 987                         td.stack_height [c->data.filter_offset] = 1;
 988                         td.stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
 989                         td.stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
 990                         td.stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
 991                 }
 992         }
 993
 994         td.ip = header->code;
 995         end = td.ip + header->code_size;
 996
 997         if (mono_interp_traceopt) {
 998                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 999                 char *name = mono_method_full_name (method, TRUE);
1000                 g_print ("Method %s, original code:\n", name);
1001                 g_print ("%s\n", tmp);
1002                 g_free (tmp);
1003                 g_free (name);
1004         }
1005
1006         if (signature->hasthis)
1007                 store_inarg (&td, 0);
1008         for (i = 0; i < signature->param_count; i++)
1009                 store_inarg (&td, i + !!signature->hasthis);
1010
1011         body_start_offset = td.new_ip - td.new_code;
1012
1013         for (i = 0; i < header->num_locals; i++) {
1014                 int mt = mint_type(header->locals [i]);
1015                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1016                         ADD_CODE(&td, MINT_INITLOCALS);
1017                         break;
1018                 }
1019         }
1020
1021         while (td.ip < end) {
1022                 int in_offset;
1023
1024                 g_assert (td.sp >= td.stack);
1025                 g_assert (td.vt_sp < 0x10000000);
1026                 in_offset = td.ip - header->code;
1027                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
1028                 new_in_start_offset = td.new_ip - td.new_code;
1029                 td.in_start = td.ip;
1030                 while (td.forward_refs [in_offset] >= 0) {
1031                         int j = td.forward_refs [in_offset];
1032                         int slot;
1033                         td.forward_refs [in_offset] = td.forward_refs [j];
1034                         if (td.in_offsets [j] < 0) {
1035                                 int old_switch_offset = -td.in_offsets [j];
1036                                 int new_switch_offset = td.in_offsets [old_switch_offset];
1037                                 int switch_case = (j - old_switch_offset - 5) / 4;
1038                                 int n_cases = read32 (header->code + old_switch_offset + 1);
1039                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
1040                                 slot = new_switch_offset + 3 + 2 * switch_case;
1041                                 td.new_code [slot] = * (unsigned short *)(&offset);
1042                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1043                         } else {
1044                                 int op = td.new_code [td.in_offsets [j]];
1045                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1046                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1047                                         g_assert (offset <= 32767);
1048                                         slot = td.in_offsets [j] + 1;
1049                                         td.new_code [slot] = offset;
1050                                 } else {
1051                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1052                                         slot = td.in_offsets [j] + 1;
1053                                         td.new_code [slot] = * (unsigned short *)(&offset);
1054                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1055                                 }
1056                         }
1057                 }
1058                 if (td.stack_height [in_offset] >= 0) {
1059                         g_assert (is_bb_start [in_offset]);
1060                         if (td.stack_height [in_offset] > 0)
1061                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1062                         td.sp = td.stack + td.stack_height [in_offset];
1063                         td.vt_sp = td.vt_stack_size [in_offset];
1064                 }
1065                 if (is_bb_start [in_offset]) {
1066                         generating_code = 1;
1067                 }
1068                 if (!generating_code) {
1069                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1070                                 ++td.ip;
1071                         continue;
1072                 }
1073                 if (mono_interp_traceopt > 1) {
1074                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1075                                 td.ip - td.il_code,
1076                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1077                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1078                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1079                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1080                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1081                                 (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) : "",
1082                                 td.vt_sp, td.max_vt_sp);
1083                 }
1084                 switch (*td.ip) {
1085                 case CEE_NOP:
1086                         /* lose it */
1087                         ++td.ip;
1088                         break;
1089                 case CEE_BREAK:
1090                         SIMPLE_OP(td, MINT_BREAK);
1091                         break;
1092                 case CEE_LDARG_0:
1093                 case CEE_LDARG_1:
1094                 case CEE_LDARG_2:
1095                 case CEE_LDARG_3:
1096                         load_arg (&td, *td.ip - CEE_LDARG_0);
1097                         ++td.ip;
1098                         break;
1099                 case CEE_LDLOC_0:
1100                 case CEE_LDLOC_1:
1101                 case CEE_LDLOC_2:
1102                 case CEE_LDLOC_3:
1103                         load_local (&td, *td.ip - CEE_LDLOC_0);
1104                         ++td.ip;
1105                         break;
1106                 case CEE_STLOC_0:
1107                 case CEE_STLOC_1:
1108                 case CEE_STLOC_2:
1109                 case CEE_STLOC_3:
1110                         store_local (&td, *td.ip - CEE_STLOC_0);
1111                         ++td.ip;
1112                         break;
1113                 case CEE_LDARG_S:
1114                         load_arg (&td, ((guint8 *)td.ip)[1]);
1115                         td.ip += 2;
1116                         break;
1117                 case CEE_LDARGA_S: {
1118                         /* NOTE: n includes this */
1119                         int n = ((guint8 *) td.ip) [1];
1120                         ADD_CODE (&td, MINT_LDARGA);
1121                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1122                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1123                         td.ip += 2;
1124                         break;
1125                 }
1126                 case CEE_STARG_S:
1127                         store_arg (&td, ((guint8 *)td.ip)[1]);
1128                         td.ip += 2;
1129                         break;
1130                 case CEE_LDLOC_S:
1131                         load_local (&td, ((guint8 *)td.ip)[1]);
1132                         td.ip += 2;
1133                         break;
1134                 case CEE_LDLOCA_S:
1135                         ADD_CODE(&td, MINT_LDLOCA_S);
1136                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1137                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1138                         td.ip += 2;
1139                         break;
1140                 case CEE_STLOC_S:
1141                         store_local (&td, ((guint8 *)td.ip)[1]);
1142                         td.ip += 2;
1143                         break;
1144                 case CEE_LDNULL:
1145                         SIMPLE_OP(td, MINT_LDNULL);
1146                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1147                         break;
1148                 case CEE_LDC_I4_M1:
1149                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1150                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1151                         break;
1152                 case CEE_LDC_I4_0:
1153                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1154                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1155                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1156                                 td.ip += 2;
1157                         } else {
1158                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1159                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1160                         }
1161                         break;
1162                 case CEE_LDC_I4_1:
1163                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1164                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1165                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1166                                 td.ip += 2;
1167                         } else {
1168                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1169                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1170                         }
1171                         break;
1172                 case CEE_LDC_I4_2:
1173                 case CEE_LDC_I4_3:
1174                 case CEE_LDC_I4_4:
1175                 case CEE_LDC_I4_5:
1176                 case CEE_LDC_I4_6:
1177                 case CEE_LDC_I4_7:
1178                 case CEE_LDC_I4_8:
1179                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1180                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1181                         break;
1182                 case CEE_LDC_I4_S:
1183                         ADD_CODE(&td, MINT_LDC_I4_S);
1184                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1185                         td.ip += 2;
1186                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1187                         break;
1188                 case CEE_LDC_I4:
1189                         i32 = read32 (td.ip + 1);
1190                         ADD_CODE(&td, MINT_LDC_I4);
1191                         WRITE32(&td, &i32);
1192                         td.ip += 5;
1193                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1194                         break;
1195                 case CEE_LDC_I8: {
1196                         gint64 val = read64 (td.ip + 1);
1197                         ADD_CODE(&td, MINT_LDC_I8);
1198                         WRITE64(&td, &val);
1199                         td.ip += 9;
1200                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1201                         break;
1202                 }
1203                 case CEE_LDC_R4: {
1204                         float val;
1205                         readr4 (td.ip + 1, &val);
1206                         ADD_CODE(&td, MINT_LDC_R4);
1207                         WRITE32(&td, &val);
1208                         td.ip += 5;
1209                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1210                         break;
1211                 }
1212                 case CEE_LDC_R8: {
1213                         double val;
1214                         readr8 (td.ip + 1, &val);
1215                         ADD_CODE(&td, MINT_LDC_R8);
1216                         WRITE64(&td, &val);
1217                         td.ip += 9;
1218                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1219                         break;
1220                 }
1221                 case CEE_DUP: {
1222                         int type = td.sp [-1].type;
1223                         MonoClass *klass = td.sp [-1].klass;
1224                         if (td.sp [-1].type == STACK_TYPE_VT) {
1225                                 gint32 size = mono_class_value_size (klass, NULL);
1226                                 PUSH_VT(&td, size);
1227                                 ADD_CODE(&td, MINT_DUP_VT);
1228                                 WRITE32(&td, &size);
1229                                 td.ip ++;
1230                         } else
1231                                 SIMPLE_OP(td, MINT_DUP);
1232                         PUSH_TYPE(&td, type, klass);
1233                         break;
1234                 }
1235                 case CEE_POP:
1236                         CHECK_STACK(&td, 1);
1237                         SIMPLE_OP(td, MINT_POP);
1238                         ADD_CODE (&td, 0);
1239                         if (td.sp [-1].type == STACK_TYPE_VT) {
1240                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1241                                 size = (size + 7) & ~7;
1242                                 ADD_CODE(&td, MINT_VTRESULT);
1243                                 ADD_CODE(&td, 0);
1244                                 WRITE32(&td, &size);
1245                                 td.vt_sp -= size;
1246                         }
1247                         --td.sp;
1248                         break;
1249                 case CEE_JMP: {
1250                         MonoMethod *m;
1251                         if (td.sp > td.stack)
1252                                 g_warning ("CEE_JMP: stack must be empty");
1253                         token = read32 (td.ip + 1);
1254                         m = mono_get_method_full (image, token, NULL, generic_context);
1255                         ADD_CODE (&td, MINT_JMP);
1256                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1257                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1258                         td.ip += 5;
1259                         break;
1260                 }
1261                 case CEE_CALLVIRT: /* Fall through */
1262                 case CEE_CALLI:    /* Fall through */
1263                 case CEE_CALL: {
1264                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1265                         constrained_class = NULL;
1266                         readonly = FALSE;
1267                         break;
1268                 }
1269                 case CEE_RET: {
1270                         int vt_size = 0;
1271                         if (signature->ret->type != MONO_TYPE_VOID) {
1272                                 --td.sp;
1273                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1274                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1275                                         vt_size = mono_class_value_size (klass, NULL);
1276                                         vt_size = (vt_size + 7) & ~7;
1277                                 }
1278                         }
1279                         if (td.sp > td.stack)
1280                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1281                         if (td.vt_sp != vt_size)
1282                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1283                         if (vt_size == 0)
1284                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1285                         else {
1286                                 ADD_CODE(&td, MINT_RET_VT);
1287                                 WRITE32(&td, &vt_size);
1288                                 ++td.ip;
1289                         }
1290                         generating_code = 0;
1291                         break;
1292                 }
1293                 case CEE_BR:
1294                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1295                         td.ip += 5;
1296                         generating_code = 0;
1297                         break;
1298                 case CEE_BR_S:
1299                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1300                         td.ip += 2;
1301                         generating_code = 0;
1302                         break;
1303                 case CEE_BRFALSE:
1304                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1305                         td.ip += 5;
1306                         break;
1307                 case CEE_BRFALSE_S:
1308                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1309                         td.ip += 2;
1310                         break;
1311                 case CEE_BRTRUE:
1312                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1313                         td.ip += 5;
1314                         break;
1315                 case CEE_BRTRUE_S:
1316                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1317                         td.ip += 2;
1318                         break;
1319                 case CEE_BEQ:
1320                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1321                         td.ip += 5;
1322                         break;
1323                 case CEE_BEQ_S:
1324                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1325                         td.ip += 2;
1326                         break;
1327                 case CEE_BGE:
1328                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1329                         td.ip += 5;
1330                         break;
1331                 case CEE_BGE_S:
1332                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1333                         td.ip += 2;
1334                         break;
1335                 case CEE_BGT:
1336                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1337                         td.ip += 5;
1338                         break;
1339                 case CEE_BGT_S:
1340                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1341                         td.ip += 2;
1342                         break;
1343                 case CEE_BLT:
1344                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1345                         td.ip += 5;
1346                         break;
1347                 case CEE_BLT_S:
1348                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1349                         td.ip += 2;
1350                         break;
1351                 case CEE_BLE:
1352                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1353                         td.ip += 5;
1354                         break;
1355                 case CEE_BLE_S:
1356                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1357                         td.ip += 2;
1358                         break;
1359                 case CEE_BNE_UN:
1360                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1361                         td.ip += 5;
1362                         break;
1363                 case CEE_BNE_UN_S:
1364                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1365                         td.ip += 2;
1366                         break;
1367                 case CEE_BGE_UN:
1368                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1369                         td.ip += 5;
1370                         break;
1371                 case CEE_BGE_UN_S:
1372                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1373                         td.ip += 2;
1374                         break;
1375                 case CEE_BGT_UN:
1376                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1377                         td.ip += 5;
1378                         break;
1379                 case CEE_BGT_UN_S:
1380                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1381                         td.ip += 2;
1382                         break;
1383                 case CEE_BLE_UN:
1384                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1385                         td.ip += 5;
1386                         break;
1387                 case CEE_BLE_UN_S:
1388                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1389                         td.ip += 2;
1390                         break;
1391                 case CEE_BLT_UN:
1392                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1393                         td.ip += 5;
1394                         break;
1395                 case CEE_BLT_UN_S:
1396                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1397                         td.ip += 2;
1398                         break;
1399                 case CEE_SWITCH: {
1400                         guint32 n;
1401                         const unsigned char *next_ip;
1402                         const unsigned char *base_ip = td.ip;
1403                         unsigned short *next_new_ip;
1404                         ++td.ip;
1405                         n = read32 (td.ip);
1406                         ADD_CODE (&td, MINT_SWITCH);
1407                         WRITE32 (&td, &n);
1408                         td.ip += 4;
1409                         next_ip = td.ip + n * 4;
1410                         next_new_ip = td.new_ip + n * 2;
1411                         --td.sp;
1412                         int stack_height = td.sp - td.stack;
1413                         for (i = 0; i < n; i++) {
1414                                 offset = read32 (td.ip);
1415                                 target = next_ip - td.il_code + offset;
1416                                 if (offset < 0) {
1417 #if DEBUG_INTERP
1418                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1419                                                 g_warning ("SWITCH with back branch and non-empty stack");
1420 #endif
1421                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1422                                 } else {
1423                                         td.stack_height [target] = stack_height;
1424                                         td.vt_stack_size [target] = td.vt_sp;
1425                                         if (stack_height > 0)
1426                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1427                                         int prev = td.forward_refs [target];
1428                                         td.forward_refs [td.ip - td.il_code] = prev;
1429                                         td.forward_refs [target] = td.ip - td.il_code;
1430                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1431                                 }
1432                                 WRITE32 (&td, &target);
1433                                 td.ip += 4;
1434                         }
1435                         break;
1436                 }
1437                 case CEE_LDIND_I1:
1438                         CHECK_STACK (&td, 1);
1439                         SIMPLE_OP (td, MINT_LDIND_I1);
1440                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1441                         break;
1442                 case CEE_LDIND_U1:
1443                         CHECK_STACK (&td, 1);
1444                         SIMPLE_OP (td, MINT_LDIND_U1);
1445                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1446                         break;
1447                 case CEE_LDIND_I2:
1448                         CHECK_STACK (&td, 1);
1449                         SIMPLE_OP (td, MINT_LDIND_I2);
1450                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1451                         break;
1452                 case CEE_LDIND_U2:
1453                         CHECK_STACK (&td, 1);
1454                         SIMPLE_OP (td, MINT_LDIND_U2);
1455                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1456                         break;
1457                 case CEE_LDIND_I4:
1458                         CHECK_STACK (&td, 1);
1459                         SIMPLE_OP (td, MINT_LDIND_I4);
1460                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1461                         break;
1462                 case CEE_LDIND_U4:
1463                         CHECK_STACK (&td, 1);
1464                         SIMPLE_OP (td, MINT_LDIND_U4);
1465                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1466                         break;
1467                 case CEE_LDIND_I8:
1468                         CHECK_STACK (&td, 1);
1469                         SIMPLE_OP (td, MINT_LDIND_I8);
1470                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1471                         break;
1472                 case CEE_LDIND_I:
1473                         CHECK_STACK (&td, 1);
1474                         SIMPLE_OP (td, MINT_LDIND_I);
1475                         ADD_CODE (&td, 0);
1476                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1477                         break;
1478                 case CEE_LDIND_R4:
1479                         CHECK_STACK (&td, 1);
1480                         SIMPLE_OP (td, MINT_LDIND_R4);
1481                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1482                         break;
1483                 case CEE_LDIND_R8:
1484                         CHECK_STACK (&td, 1);
1485                         SIMPLE_OP (td, MINT_LDIND_R8);
1486                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1487                         break;
1488                 case CEE_LDIND_REF:
1489                         CHECK_STACK (&td, 1);
1490                         SIMPLE_OP (td, MINT_LDIND_REF);
1491                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1492                         break;
1493                 case CEE_STIND_REF:
1494                         CHECK_STACK (&td, 2);
1495                         SIMPLE_OP (td, MINT_STIND_REF);
1496                         td.sp -= 2;
1497                         break;
1498                 case CEE_STIND_I1:
1499                         CHECK_STACK (&td, 2);
1500                         SIMPLE_OP (td, MINT_STIND_I1);
1501                         td.sp -= 2;
1502                         break;
1503                 case CEE_STIND_I2:
1504                         CHECK_STACK (&td, 2);
1505                         SIMPLE_OP (td, MINT_STIND_I2);
1506                         td.sp -= 2;
1507                         break;
1508                 case CEE_STIND_I4:
1509                         CHECK_STACK (&td, 2);
1510                         SIMPLE_OP (td, MINT_STIND_I4);
1511                         td.sp -= 2;
1512                         break;
1513                 case CEE_STIND_I:
1514                         CHECK_STACK (&td, 2);
1515                         SIMPLE_OP (td, MINT_STIND_I);
1516                         td.sp -= 2;
1517                         break;
1518                 case CEE_STIND_I8:
1519                         CHECK_STACK (&td, 2);
1520                         SIMPLE_OP (td, MINT_STIND_I8);
1521                         td.sp -= 2;
1522                         break;
1523                 case CEE_STIND_R4:
1524                         CHECK_STACK (&td, 2);
1525                         SIMPLE_OP (td, MINT_STIND_R4);
1526                         td.sp -= 2;
1527                         break;
1528                 case CEE_STIND_R8:
1529                         CHECK_STACK (&td, 2);
1530                         SIMPLE_OP (td, MINT_STIND_R8);
1531                         td.sp -= 2;
1532                         break;
1533                 case CEE_ADD:
1534                         binary_arith_op(&td, MINT_ADD_I4);
1535                         ++td.ip;
1536                         break;
1537                 case CEE_SUB:
1538                         binary_arith_op(&td, MINT_SUB_I4);
1539                         ++td.ip;
1540                         break;
1541                 case CEE_MUL:
1542                         binary_arith_op(&td, MINT_MUL_I4);
1543                         ++td.ip;
1544                         break;
1545                 case CEE_DIV:
1546                         binary_arith_op(&td, MINT_DIV_I4);
1547                         ++td.ip;
1548                         break;
1549                 case CEE_DIV_UN:
1550                         binary_arith_op(&td, MINT_DIV_UN_I4);
1551                         ++td.ip;
1552                         break;
1553                 case CEE_REM:
1554                         binary_int_op (&td, MINT_REM_I4);
1555                         ++td.ip;
1556                         break;
1557                 case CEE_REM_UN:
1558                         binary_int_op (&td, MINT_REM_UN_I4);
1559                         ++td.ip;
1560                         break;
1561                 case CEE_AND:
1562                         binary_int_op (&td, MINT_AND_I4);
1563                         ++td.ip;
1564                         break;
1565                 case CEE_OR:
1566                         binary_int_op (&td, MINT_OR_I4);
1567                         ++td.ip;
1568                         break;
1569                 case CEE_XOR:
1570                         binary_int_op (&td, MINT_XOR_I4);
1571                         ++td.ip;
1572                         break;
1573                 case CEE_SHL:
1574                         shift_op (&td, MINT_SHL_I4);
1575                         ++td.ip;
1576                         break;
1577                 case CEE_SHR:
1578                         shift_op (&td, MINT_SHR_I4);
1579                         ++td.ip;
1580                         break;
1581                 case CEE_SHR_UN:
1582                         shift_op (&td, MINT_SHR_UN_I4);
1583                         ++td.ip;
1584                         break;
1585                 case CEE_NEG:
1586                         unary_arith_op (&td, MINT_NEG_I4);
1587                         ++td.ip;
1588                         break;
1589                 case CEE_NOT:
1590                         unary_arith_op (&td, MINT_NOT_I4);
1591                         ++td.ip;
1592                         break;
1593                 case CEE_CONV_U1:
1594                         CHECK_STACK (&td, 1);
1595                         switch (td.sp [-1].type) {
1596                         case STACK_TYPE_R8:
1597                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1598                                 break;
1599                         case STACK_TYPE_I4:
1600                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1601                                 break;
1602                         case STACK_TYPE_I8:
1603                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1604                                 break;
1605                         default:
1606                                 g_assert_not_reached ();
1607                         }
1608                         ++td.ip;
1609                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1610                         break;
1611                 case CEE_CONV_I1:
1612                         CHECK_STACK (&td, 1);
1613                         switch (td.sp [-1].type) {
1614                         case STACK_TYPE_R8:
1615                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1616                                 break;
1617                         case STACK_TYPE_I4:
1618                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1619                                 break;
1620                         case STACK_TYPE_I8:
1621                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1622                                 break;
1623                         default:
1624                                 g_assert_not_reached ();
1625                         }
1626                         ++td.ip;
1627                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1628                         break;
1629                 case CEE_CONV_U2:
1630                         CHECK_STACK (&td, 1);
1631                         switch (td.sp [-1].type) {
1632                         case STACK_TYPE_R8:
1633                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1634                                 break;
1635                         case STACK_TYPE_I4:
1636                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1637                                 break;
1638                         case STACK_TYPE_I8:
1639                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1640                                 break;
1641                         default:
1642                                 g_assert_not_reached ();
1643                         }
1644                         ++td.ip;
1645                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1646                         break;
1647                 case CEE_CONV_I2:
1648                         CHECK_STACK (&td, 1);
1649                         switch (td.sp [-1].type) {
1650                         case STACK_TYPE_R8:
1651                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1652                                 break;
1653                         case STACK_TYPE_I4:
1654                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1655                                 break;
1656                         case STACK_TYPE_I8:
1657                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1658                                 break;
1659                         default:
1660                                 g_assert_not_reached ();
1661                         }
1662                         ++td.ip;
1663                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1664                         break;
1665                 case CEE_CONV_U:
1666                         CHECK_STACK (&td, 1);
1667                         switch (td.sp [-1].type) {
1668                         case STACK_TYPE_R8:
1669 #if SIZEOF_VOID_P == 4
1670                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1671 #else
1672                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1673 #endif
1674                                 break;
1675                         case STACK_TYPE_I4:
1676 #if SIZEOF_VOID_P == 8
1677                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1678 #endif
1679                                 break;
1680                         case STACK_TYPE_I8:
1681 #if SIZEOF_VOID_P == 4
1682                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1683 #endif
1684                                 break;
1685                         case STACK_TYPE_MP:
1686                                 break;
1687                         default:
1688                                 g_assert_not_reached ();
1689                         }
1690                         ++td.ip;
1691                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1692                         break;
1693                 case CEE_CONV_I:
1694                         CHECK_STACK (&td, 1);
1695                         switch (td.sp [-1].type) {
1696                         case STACK_TYPE_R8:
1697 #if SIZEOF_VOID_P == 8
1698                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1699 #else
1700                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1701 #endif
1702                                 break;
1703                         case STACK_TYPE_I4:
1704 #if SIZEOF_VOID_P == 8
1705                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1706 #endif
1707                                 break;
1708                         case STACK_TYPE_O:
1709                                 break;
1710                         case STACK_TYPE_MP:
1711                                 break;
1712                         case STACK_TYPE_I8:
1713 #if SIZEOF_VOID_P == 4
1714                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1715 #endif
1716                                 break;
1717                         default:
1718                                 g_assert_not_reached ();
1719                         }
1720                         ++td.ip;
1721                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1722                         break;
1723                 case CEE_CONV_U4:
1724                         CHECK_STACK (&td, 1);
1725                         switch (td.sp [-1].type) {
1726                         case STACK_TYPE_R8:
1727                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1728                                 break;
1729                         case STACK_TYPE_I4:
1730                                 break;
1731                         case STACK_TYPE_I8:
1732                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1733                                 break;
1734                         case STACK_TYPE_MP:
1735 #if SIZEOF_VOID_P == 8
1736                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1737 #endif
1738                                 break;
1739                         default:
1740                                 g_assert_not_reached ();
1741                         }
1742                         ++td.ip;
1743                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1744                         break;
1745                 case CEE_CONV_I4:
1746                         CHECK_STACK (&td, 1);
1747                         switch (td.sp [-1].type) {
1748                         case STACK_TYPE_R8:
1749                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1750                                 break;
1751                         case STACK_TYPE_I4:
1752                                 break;
1753                         case STACK_TYPE_I8:
1754                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1755                                 break;
1756                         case STACK_TYPE_MP:
1757 #if SIZEOF_VOID_P == 8
1758                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1759 #endif
1760                                 break;
1761                         default:
1762                                 g_assert_not_reached ();
1763                         }
1764                         ++td.ip;
1765                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1766                         break;
1767                 case CEE_CONV_I8:
1768                         CHECK_STACK (&td, 1);
1769                         switch (td.sp [-1].type) {
1770                         case STACK_TYPE_R8:
1771                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1772                                 break;
1773                         case STACK_TYPE_I4:
1774                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1775                                 break;
1776                         case STACK_TYPE_I8:
1777                                 break;
1778                         case STACK_TYPE_MP:
1779 #if SIZEOF_VOID_P == 4
1780                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1781 #endif
1782                                 break;
1783                         default:
1784                                 g_assert_not_reached ();
1785                         }
1786                         ++td.ip;
1787                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1788                         break;
1789                 case CEE_CONV_R4:
1790                         CHECK_STACK (&td, 1);
1791                         switch (td.sp [-1].type) {
1792                         case STACK_TYPE_R8:
1793                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1794                                 break;
1795                         case STACK_TYPE_I8:
1796                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1797                                 break;
1798                         case STACK_TYPE_I4:
1799                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1800                                 break;
1801                         default:
1802                                 g_assert_not_reached ();
1803                         }
1804                         ++td.ip;
1805                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1806                         break;
1807                 case CEE_CONV_R8:
1808                         CHECK_STACK (&td, 1);
1809                         switch (td.sp [-1].type) {
1810                         case STACK_TYPE_I4:
1811                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1812                                 break;
1813                         case STACK_TYPE_I8:
1814                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1815                                 break;
1816                         case STACK_TYPE_R8:
1817                                 break;
1818                         default:
1819                                 g_assert_not_reached ();
1820                         }
1821                         ++td.ip;
1822                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1823                         break;
1824                 case CEE_CONV_U8:
1825                         CHECK_STACK (&td, 1);
1826                         switch (td.sp [-1].type) {
1827                         case STACK_TYPE_I4:
1828                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1829                                 break;
1830                         case STACK_TYPE_I8:
1831                                 break;
1832                         case STACK_TYPE_R8:
1833                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1834                                 break;
1835                         case STACK_TYPE_MP:
1836 #if SIZEOF_VOID_P == 4
1837                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1838 #endif
1839                                 break;
1840                         default:
1841                                 g_assert_not_reached ();
1842                         }
1843                         ++td.ip;
1844                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1845                         break;
1846                 case CEE_CPOBJ: {
1847                         CHECK_STACK (&td, 2);
1848
1849                         token = read32 (td.ip + 1);
1850                         klass = mono_class_get_full (image, token, generic_context);
1851
1852                         if (klass->valuetype) {
1853                                 ADD_CODE (&td, MINT_CPOBJ);
1854                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1855                         } else {
1856                                 ADD_CODE (&td, MINT_LDIND_REF);
1857                                 ADD_CODE (&td, MINT_STIND_REF);
1858                         }
1859                         td.ip += 5;
1860                         td.sp -= 2;
1861                         break;
1862                 }
1863                 case CEE_LDOBJ: {
1864                         int size;
1865                         CHECK_STACK (&td, 1);
1866
1867                         token = read32 (td.ip + 1);
1868
1869                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1870                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1871                         else
1872                                 klass = mono_class_get_full (image, token, generic_context);
1873
1874                         ADD_CODE(&td, MINT_LDOBJ);
1875                         ADD_CODE(&td, get_data_item_index(&td, klass));
1876                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1877                                 size = mono_class_value_size (klass, NULL);
1878                                 PUSH_VT(&td, size);
1879                         }
1880                         td.ip += 5;
1881                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1882                         break;
1883                 }
1884                 case CEE_LDSTR: {
1885                         MonoString *s;
1886                         token = mono_metadata_token_index (read32 (td.ip + 1));
1887                         td.ip += 5;
1888                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1889                                 s = mono_string_new_wrapper(
1890                                         mono_method_get_wrapper_data (method, token));
1891                         }
1892                         else
1893                                 s = mono_ldstr (domain, image, token);
1894                         ADD_CODE(&td, MINT_LDSTR);
1895                         ADD_CODE(&td, get_data_item_index (&td, s));
1896                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1897                         break;
1898                 }
1899                 case CEE_NEWOBJ: {
1900                         MonoMethod *m;
1901                         MonoMethodSignature *csignature;
1902                         guint32 vt_stack_used = 0;
1903                         guint32 vt_res_size = 0;
1904
1905                         td.ip++;
1906                         token = read32 (td.ip);
1907                         td.ip += 4;
1908
1909                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1910                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1911                         else
1912                                 m = mono_get_method_full (image, token, NULL, generic_context);
1913
1914                         csignature = mono_method_signature (m);
1915                         klass = m->klass;
1916                         td.sp -= csignature->param_count;
1917                         ADD_CODE(&td, MINT_NEWOBJ);
1918                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1919                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1920
1921                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1922                                 vt_res_size = mono_class_value_size (klass, NULL);
1923                                 PUSH_VT (&td, vt_res_size);
1924                         }
1925                         for (i = 0; i < csignature->param_count; ++i) {
1926                                 int mt = mint_type(csignature->params [i]);
1927                                 if (mt == MINT_TYPE_VT) {
1928                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1929                                         gint32 size = mono_class_value_size (k, NULL);
1930                                         size = (size + 7) & ~7;
1931                                         vt_stack_used += size;
1932                                 }
1933                         }
1934                         if (vt_stack_used != 0 || vt_res_size != 0) {
1935                                 ADD_CODE(&td, MINT_VTRESULT);
1936                                 ADD_CODE(&td, vt_res_size);
1937                                 WRITE32(&td, &vt_stack_used);
1938                                 td.vt_sp -= vt_stack_used;
1939                         }
1940                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1941                         break;
1942                 }
1943                 case CEE_CASTCLASS:
1944                         CHECK_STACK (&td, 1);
1945                         token = read32 (td.ip + 1);
1946                         klass = mono_class_get_full (image, token, generic_context);
1947                         ADD_CODE(&td, MINT_CASTCLASS);
1948                         ADD_CODE(&td, get_data_item_index (&td, klass));
1949                         td.sp [-1].klass = klass;
1950                         td.ip += 5;
1951                         break;
1952                 case CEE_ISINST:
1953                         CHECK_STACK (&td, 1);
1954                         token = read32 (td.ip + 1);
1955                         klass = mono_class_get_full (image, token, generic_context);
1956                         ADD_CODE(&td, MINT_ISINST);
1957                         ADD_CODE(&td, get_data_item_index (&td, klass));
1958                         td.ip += 5;
1959                         break;
1960                 case CEE_CONV_R_UN:
1961                         switch (td.sp [-1].type) {
1962                         case STACK_TYPE_R8:
1963                                 break;
1964                         case STACK_TYPE_I8:
1965                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1966                                 break;
1967                         case STACK_TYPE_I4:
1968                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1969                                 break;
1970                         default:
1971                                 g_assert_not_reached ();
1972                         }
1973                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1974                         ++td.ip;
1975                         break;
1976                 case CEE_UNBOX:
1977                         CHECK_STACK (&td, 1);
1978                         token = read32 (td.ip + 1);
1979
1980                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1981                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1982                         else
1983                                 klass = mono_class_get_full (image, token, generic_context);
1984
1985                         if (mono_class_is_nullable (klass)) {
1986                                 g_error ("cee_unbox: implement Nullable");
1987                         }
1988
1989                         ADD_CODE(&td, MINT_UNBOX);
1990                         ADD_CODE(&td, get_data_item_index (&td, klass));
1991                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1992                         td.ip += 5;
1993                         break;
1994                 case CEE_UNBOX_ANY:
1995                         CHECK_STACK (&td, 1);
1996                         token = read32 (td.ip + 1);
1997
1998                         g_assert (method->wrapper_type == MONO_WRAPPER_NONE);
1999                         klass = mono_class_get_full (image, token, generic_context);
2000
2001                         if (mini_type_is_reference (&klass->byval_arg)) {
2002                                 ADD_CODE (&td, MINT_CASTCLASS);
2003                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2004                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2005                                 td.ip += 5;
2006                         } else if (mono_class_is_nullable (klass)) {
2007                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2008                                 /* td.ip is incremented by interp_transform_call */
2009                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2010                         } else {
2011                                 int mt = mint_type (&klass->byval_arg);
2012                                 ADD_CODE (&td, MINT_UNBOX);
2013                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2014
2015                                 ADD_CODE (&td, MINT_LDOBJ);
2016                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2017                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2018
2019                                 if (mt == MINT_TYPE_VT) {
2020                                         int size = mono_class_value_size (klass, NULL);
2021                                         PUSH_VT (&td, size);
2022                                 }
2023                                 td.ip += 5;
2024                         }
2025
2026                         break;
2027                 case CEE_THROW:
2028                         CHECK_STACK (&td, 1);
2029                         SIMPLE_OP (td, MINT_THROW);
2030                         --td.sp;
2031                         generating_code = 0;
2032                         break;
2033                 case CEE_LDFLDA:
2034                         CHECK_STACK (&td, 1);
2035                         token = read32 (td.ip + 1);
2036                         field = mono_field_from_token (image, token, &klass, generic_context);
2037                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2038                         mono_class_init (klass);
2039                         if (is_static) {
2040                                 ADD_CODE (&td, MINT_POP);
2041                                 ADD_CODE (&td, 0);
2042                                 ADD_CODE (&td, MINT_LDSFLDA);
2043                                 ADD_CODE (&td, get_data_item_index (&td, field));
2044                         } else {
2045                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2046                                         ADD_CODE (&td, MINT_LDFLDA);
2047                                 } else {
2048                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2049                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2050                                 }
2051                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2052                         }
2053                         td.ip += 5;
2054                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2055                         break;
2056                 case CEE_LDFLD: {
2057                         CHECK_STACK (&td, 1);
2058                         token = read32 (td.ip + 1);
2059                         field = mono_field_from_token (image, token, &klass, generic_context);
2060                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2061                         mono_class_init (klass);
2062
2063                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2064                         mt = mint_type (&field_klass->byval_arg);
2065                         if (klass->marshalbyref) {
2066                                 g_assert (!is_static);
2067                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2068                                 ADD_CODE(&td, get_data_item_index (&td, field));
2069                         } else  {
2070                                 if (is_static) {
2071                                         ADD_CODE (&td, MINT_POP);
2072                                         ADD_CODE (&td, 0);
2073                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2074                                         ADD_CODE (&td, get_data_item_index (&td, field));
2075                                 } else {
2076                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2077                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2078                                 }
2079                         }
2080                         if (mt == MINT_TYPE_VT) {
2081                                 int size = mono_class_value_size (field_klass, NULL);
2082                                 PUSH_VT(&td, size);
2083                                 WRITE32(&td, &size);
2084                         }
2085                         if (td.sp [-1].type == STACK_TYPE_VT) {
2086                                 int size = mono_class_value_size (klass, NULL);
2087                                 size = (size + 7) & ~7;
2088                                 td.vt_sp -= size;
2089                                 ADD_CODE (&td, MINT_VTRESULT);
2090                                 ADD_CODE (&td, 0);
2091                                 WRITE32 (&td, &size);
2092                         }
2093                         td.ip += 5;
2094                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2095                         break;
2096                 }
2097                 case CEE_STFLD: {
2098                         CHECK_STACK (&td, 2);
2099                         token = read32 (td.ip + 1);
2100                         field = mono_field_from_token (image, token, &klass, generic_context);
2101                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2102                         mono_class_init (klass);
2103                         mt = mint_type(field->type);
2104
2105                         if (klass->marshalbyref) {
2106                                 g_assert (!is_static);
2107                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2108                                 ADD_CODE(&td, get_data_item_index (&td, field));
2109                         } else  {
2110                                 if (is_static) {
2111                                         ADD_CODE (&td, MINT_POP);
2112                                         ADD_CODE (&td, 1);
2113                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2114                                         ADD_CODE (&td, get_data_item_index (&td, field));
2115                                 } else {
2116                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2117                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2118                                 }
2119                         }
2120                         if (mt == MINT_TYPE_VT) {
2121                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2122                                 int size = mono_class_value_size (klass, NULL);
2123                                 POP_VT(&td, size);
2124                                 WRITE32(&td, &size);
2125                         }
2126                         td.ip += 5;
2127                         td.sp -= 2;
2128                         break;
2129                 }
2130                 case CEE_LDSFLDA:
2131                         token = read32 (td.ip + 1);
2132                         field = mono_field_from_token (image, token, &klass, generic_context);
2133                         ADD_CODE(&td, MINT_LDSFLDA);
2134                         ADD_CODE(&td, get_data_item_index (&td, field));
2135                         td.ip += 5;
2136                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2137                         break;
2138                 case CEE_LDSFLD:
2139                         token = read32 (td.ip + 1);
2140                         field = mono_field_from_token (image, token, &klass, generic_context);
2141                         mt = mint_type(field->type);
2142                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2143                         ADD_CODE(&td, get_data_item_index (&td, field));
2144                         klass = NULL;
2145                         if (mt == MINT_TYPE_VT) {
2146                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2147                                 int size = mono_class_value_size (klass, NULL);
2148                                 PUSH_VT(&td, size);
2149                                 WRITE32(&td, &size);
2150                                 klass = field->type->data.klass;
2151                         } else {
2152                                 if (mt == MINT_TYPE_O)
2153                                         klass = mono_class_from_mono_type (field->type);
2154                         }
2155                         td.ip += 5;
2156                         PUSH_TYPE(&td, stack_type [mt], klass);
2157                         break;
2158                 case CEE_STSFLD:
2159                         CHECK_STACK (&td, 1);
2160                         token = read32 (td.ip + 1);
2161                         field = mono_field_from_token (image, token, &klass, generic_context);
2162                         mt = mint_type(field->type);
2163                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2164                         ADD_CODE(&td, get_data_item_index (&td, field));
2165                         if (mt == MINT_TYPE_VT) {
2166                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2167                                 int size = mono_class_value_size (klass, NULL);
2168                                 POP_VT (&td, size);
2169                                 WRITE32 (&td, &size);
2170                         }
2171                         td.ip += 5;
2172                         --td.sp;
2173                         break;
2174                 case CEE_STOBJ: {
2175                         int size;
2176                         token = read32 (td.ip + 1);
2177
2178                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2179                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2180                         else
2181                                 klass = mono_class_get_full (image, token, generic_context);
2182
2183                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2184                         ADD_CODE(&td, get_data_item_index (&td, klass));
2185                         if (td.sp [-1].type == STACK_TYPE_VT) {
2186                                 size = mono_class_value_size (klass, NULL);
2187                                 size = (size + 7) & ~7;
2188                                 td.vt_sp -= size;
2189                         }
2190                         td.ip += 5;
2191                         td.sp -= 2;
2192                         break;
2193                 }
2194                 case CEE_CONV_OVF_I_UN:
2195                 case CEE_CONV_OVF_U_UN:
2196                         CHECK_STACK (&td, 1);
2197                         switch (td.sp [-1].type) {
2198                         case STACK_TYPE_R8:
2199 #if SIZEOF_VOID_P == 8
2200                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2201 #else
2202                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2203 #endif
2204                                 break;
2205                         case STACK_TYPE_I8:
2206 #if SIZEOF_VOID_P == 4
2207                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2208 #endif
2209                                 break;
2210                         case STACK_TYPE_I4:
2211 #if SIZEOF_VOID_P == 8
2212                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2213 #endif
2214                                 break;
2215                         default:
2216                                 g_assert_not_reached ();
2217                                 break;
2218                         }
2219                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2220                         ++td.ip;
2221                         break;
2222                 case CEE_CONV_OVF_I8_UN:
2223                 case CEE_CONV_OVF_U8_UN:
2224                         CHECK_STACK (&td, 1);
2225                         switch (td.sp [-1].type) {
2226                         case STACK_TYPE_R8:
2227                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2228                                 break;
2229                         case STACK_TYPE_I8:
2230                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2231                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2232                                 break;
2233                         case STACK_TYPE_I4:
2234                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2235                                 break;
2236                         default:
2237                                 g_assert_not_reached ();
2238                                 break;
2239                         }
2240                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2241                         ++td.ip;
2242                         break;
2243                 case CEE_BOX: {
2244                         int size;
2245                         CHECK_STACK (&td, 1);
2246                         token = read32 (td.ip + 1);
2247                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2248                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2249                         else
2250                                 klass = mono_class_get_full (image, token, generic_context);
2251
2252                         if (mono_class_is_nullable (klass)) {
2253                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2254                                 /* td.ip is incremented by interp_transform_call */
2255                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2256                         } else if (!klass->valuetype) {
2257                                 /* already boxed, do nothing. */
2258                                 td.ip += 5;
2259                         } else {
2260                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2261                                         size = mono_class_value_size (klass, NULL);
2262                                         size = (size + 7) & ~7;
2263                                         td.vt_sp -= size;
2264                                 }
2265                                 ADD_CODE(&td, MINT_BOX);
2266                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2267                                 ADD_CODE (&td, 0);
2268                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2269                                 td.ip += 5;
2270                         }
2271
2272                         break;
2273                 }
2274                 case CEE_NEWARR: {
2275                         CHECK_STACK (&td, 1);
2276                         token = read32 (td.ip + 1);
2277
2278                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2279                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2280                         else
2281                                 klass = mono_class_get_full (image, token, generic_context);
2282
2283                         unsigned char lentype = (td.sp - 1)->type;
2284                         if (lentype == STACK_TYPE_I8) {
2285                                 /* mimic mini behaviour */
2286                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2287                         } else {
2288                                 g_assert (lentype == STACK_TYPE_I4);
2289                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2290                         }
2291                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2292                         ADD_CODE (&td, MINT_NEWARR);
2293                         ADD_CODE (&td, get_data_item_index (&td, klass));
2294                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2295                         td.ip += 5;
2296                         break;
2297                 }
2298                 case CEE_LDLEN:
2299                         CHECK_STACK (&td, 1);
2300                         SIMPLE_OP (td, MINT_LDLEN);
2301                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2302                         break;
2303                 case CEE_LDELEMA:
2304                         CHECK_STACK (&td, 2);
2305                         ENSURE_I4 (&td, 1);
2306                         token = read32 (td.ip + 1);
2307
2308                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2309                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2310                         else
2311                                 klass = mono_class_get_full (image, token, generic_context);
2312
2313                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2314                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2315                         } else {
2316                                 ADD_CODE (&td, MINT_LDELEMA);
2317                         }
2318                         ADD_CODE (&td, get_data_item_index (&td, klass));
2319                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2320                         ADD_CODE (&td, 2);
2321                         readonly = FALSE;
2322
2323                         td.ip += 5;
2324                         --td.sp;
2325                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2326                         break;
2327                 case CEE_LDELEM_I1:
2328                         CHECK_STACK (&td, 2);
2329                         ENSURE_I4 (&td, 1);
2330                         SIMPLE_OP (td, MINT_LDELEM_I1);
2331                         --td.sp;
2332                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2333                         break;
2334                 case CEE_LDELEM_U1:
2335                         CHECK_STACK (&td, 2);
2336                         ENSURE_I4 (&td, 1);
2337                         SIMPLE_OP (td, MINT_LDELEM_U1);
2338                         --td.sp;
2339                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2340                         break;
2341                 case CEE_LDELEM_I2:
2342                         CHECK_STACK (&td, 2);
2343                         ENSURE_I4 (&td, 1);
2344                         SIMPLE_OP (td, MINT_LDELEM_I2);
2345                         --td.sp;
2346                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2347                         break;
2348                 case CEE_LDELEM_U2:
2349                         CHECK_STACK (&td, 2);
2350                         ENSURE_I4 (&td, 1);
2351                         SIMPLE_OP (td, MINT_LDELEM_U2);
2352                         --td.sp;
2353                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2354                         break;
2355                 case CEE_LDELEM_I4:
2356                         CHECK_STACK (&td, 2);
2357                         ENSURE_I4 (&td, 1);
2358                         SIMPLE_OP (td, MINT_LDELEM_I4);
2359                         --td.sp;
2360                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2361                         break;
2362                 case CEE_LDELEM_U4:
2363                         CHECK_STACK (&td, 2);
2364                         ENSURE_I4 (&td, 1);
2365                         SIMPLE_OP (td, MINT_LDELEM_U4);
2366                         --td.sp;
2367                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2368                         break;
2369                 case CEE_LDELEM_I8:
2370                         CHECK_STACK (&td, 2);
2371                         ENSURE_I4 (&td, 1);
2372                         SIMPLE_OP (td, MINT_LDELEM_I8);
2373                         --td.sp;
2374                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2375                         break;
2376                 case CEE_LDELEM_I:
2377                         CHECK_STACK (&td, 2);
2378                         ENSURE_I4 (&td, 1);
2379                         SIMPLE_OP (td, MINT_LDELEM_I);
2380                         --td.sp;
2381                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2382                         break;
2383                 case CEE_LDELEM_R4:
2384                         CHECK_STACK (&td, 2);
2385                         ENSURE_I4 (&td, 1);
2386                         SIMPLE_OP (td, MINT_LDELEM_R4);
2387                         --td.sp;
2388                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2389                         break;
2390                 case CEE_LDELEM_R8:
2391                         CHECK_STACK (&td, 2);
2392                         ENSURE_I4 (&td, 1);
2393                         SIMPLE_OP (td, MINT_LDELEM_R8);
2394                         --td.sp;
2395                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2396                         break;
2397                 case CEE_LDELEM_REF:
2398                         CHECK_STACK (&td, 2);
2399                         ENSURE_I4 (&td, 1);
2400                         SIMPLE_OP (td, MINT_LDELEM_REF);
2401                         --td.sp;
2402                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2403                         break;
2404                 case CEE_LDELEM:
2405                         CHECK_STACK (&td, 2);
2406                         token = read32 (td.ip + 1);
2407                         klass = mono_class_get_full (image, token, generic_context);
2408                         switch (mint_type (&klass->byval_arg)) {
2409                                 case MINT_TYPE_I1:
2410                                         ENSURE_I4 (&td, 1);
2411                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2412                                         --td.sp;
2413                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2414                                         break;
2415                                 case MINT_TYPE_U1:
2416                                         ENSURE_I4 (&td, 1);
2417                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2418                                         --td.sp;
2419                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2420                                         break;
2421                                 case MINT_TYPE_U2:
2422                                         ENSURE_I4 (&td, 1);
2423                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2424                                         --td.sp;
2425                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2426                                         break;
2427                                 case MINT_TYPE_I2:
2428                                         ENSURE_I4 (&td, 1);
2429                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2430                                         --td.sp;
2431                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2432                                         break;
2433                                 case MINT_TYPE_I4:
2434                                         ENSURE_I4 (&td, 1);
2435                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2436                                         --td.sp;
2437                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2438                                         break;
2439                                 case MINT_TYPE_I8:
2440                                         ENSURE_I4 (&td, 1);
2441                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2442                                         --td.sp;
2443                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2444                                         break;
2445                                 case MINT_TYPE_R4:
2446                                         ENSURE_I4 (&td, 1);
2447                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2448                                         --td.sp;
2449                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2450                                         break;
2451                                 case MINT_TYPE_R8:
2452                                         ENSURE_I4 (&td, 1);
2453                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2454                                         --td.sp;
2455                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2456                                         break;
2457                                 case MINT_TYPE_O:
2458                                         ENSURE_I4 (&td, 1);
2459                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2460                                         --td.sp;
2461                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2462                                         break;
2463                                 case MINT_TYPE_VT: {
2464                                         int size = mono_class_value_size (klass, NULL);
2465                                         ENSURE_I4 (&td, 1);
2466                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2467                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2468                                         WRITE32 (&td, &size);
2469                                         --td.sp;
2470                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2471                                         PUSH_VT (&td, size);
2472                                         break;
2473                                 }
2474                                 default: {
2475                                         GString *res = g_string_new ("");
2476                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2477                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2478                                         g_string_free (res, TRUE);
2479                                         g_assert (0);
2480                                         break;
2481                                 }
2482                         }
2483                         td.ip += 4;
2484                         break;
2485                 case CEE_STELEM_I:
2486                         CHECK_STACK (&td, 3);
2487                         ENSURE_I4 (&td, 2);
2488                         SIMPLE_OP (td, MINT_STELEM_I);
2489                         td.sp -= 3;
2490                         break;
2491                 case CEE_STELEM_I1:
2492                         CHECK_STACK (&td, 3);
2493                         ENSURE_I4 (&td, 2);
2494                         SIMPLE_OP (td, MINT_STELEM_I1);
2495                         td.sp -= 3;
2496                         break;
2497                 case CEE_STELEM_I2:
2498                         CHECK_STACK (&td, 3);
2499                         ENSURE_I4 (&td, 2);
2500                         SIMPLE_OP (td, MINT_STELEM_I2);
2501                         td.sp -= 3;
2502                         break;
2503                 case CEE_STELEM_I4:
2504                         CHECK_STACK (&td, 3);
2505                         ENSURE_I4 (&td, 2);
2506                         SIMPLE_OP (td, MINT_STELEM_I4);
2507                         td.sp -= 3;
2508                         break;
2509                 case CEE_STELEM_I8:
2510                         CHECK_STACK (&td, 3);
2511                         ENSURE_I4 (&td, 2);
2512                         SIMPLE_OP (td, MINT_STELEM_I8);
2513                         td.sp -= 3;
2514                         break;
2515                 case CEE_STELEM_R4:
2516                         CHECK_STACK (&td, 3);
2517                         ENSURE_I4 (&td, 2);
2518                         SIMPLE_OP (td, MINT_STELEM_R4);
2519                         td.sp -= 3;
2520                         break;
2521                 case CEE_STELEM_R8:
2522                         CHECK_STACK (&td, 3);
2523                         ENSURE_I4 (&td, 2);
2524                         SIMPLE_OP (td, MINT_STELEM_R8);
2525                         td.sp -= 3;
2526                         break;
2527                 case CEE_STELEM_REF:
2528                         CHECK_STACK (&td, 3);
2529                         ENSURE_I4 (&td, 2);
2530                         SIMPLE_OP (td, MINT_STELEM_REF);
2531                         td.sp -= 3;
2532                         break;
2533                 case CEE_STELEM:
2534                         CHECK_STACK (&td, 3);
2535                         ENSURE_I4 (&td, 2);
2536                         token = read32 (td.ip + 1);
2537                         klass = mono_class_get_full (image, token, generic_context);
2538                         switch (mint_type (&klass->byval_arg)) {
2539                                 case MINT_TYPE_U1:
2540                                         SIMPLE_OP (td, MINT_STELEM_U1);
2541                                         break;
2542                                 case MINT_TYPE_I4:
2543                                         SIMPLE_OP (td, MINT_STELEM_I4);
2544                                         break;
2545                                 case MINT_TYPE_I8:
2546                                         SIMPLE_OP (td, MINT_STELEM_I8);
2547                                         break;
2548                                 case MINT_TYPE_O:
2549                                         SIMPLE_OP (td, MINT_STELEM_REF);
2550                                         break;
2551                                 case MINT_TYPE_VT: {
2552                                         int size = mono_class_value_size (klass, NULL);
2553                                         SIMPLE_OP (td, MINT_STELEM_VT);
2554                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2555                                         WRITE32 (&td, &size);
2556                                         POP_VT (&td, size);
2557                                         break;
2558                                 }
2559                                 default: {
2560                                         GString *res = g_string_new ("");
2561                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2562                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2563                                         g_string_free (res, TRUE);
2564                                         g_assert (0);
2565                                         break;
2566                                 }
2567                         }
2568                         td.ip += 4;
2569                         td.sp -= 3;
2570                         break;
2571 #if 0
2572                 case CEE_CONV_OVF_U1:
2573
2574                 case CEE_CONV_OVF_I8:
2575
2576 #if SIZEOF_VOID_P == 8
2577                 case CEE_CONV_OVF_U:
2578 #endif
2579                 case CEE_REFANYVAL: ves_abort(); break;
2580 #endif
2581                 case CEE_CKFINITE:
2582                         CHECK_STACK (&td, 1);
2583                         SIMPLE_OP (td, MINT_CKFINITE);
2584                         break;
2585                 case CEE_CONV_OVF_I1:
2586                 case CEE_CONV_OVF_I1_UN:
2587                         CHECK_STACK (&td, 1);
2588                         switch (td.sp [-1].type) {
2589                         case STACK_TYPE_R8:
2590                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2591                                 break;
2592                         case STACK_TYPE_I4:
2593                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2594                                 break;
2595                         case STACK_TYPE_I8:
2596                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2597                                 break;
2598                         default:
2599                                 g_assert_not_reached ();
2600                         }
2601                         ++td.ip;
2602                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2603                         break;
2604                 case CEE_CONV_OVF_U1:
2605                 case CEE_CONV_OVF_U1_UN:
2606                         CHECK_STACK (&td, 1);
2607                         switch (td.sp [-1].type) {
2608                         case STACK_TYPE_R8:
2609                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2610                                 break;
2611                         case STACK_TYPE_I4:
2612                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2613                                 break;
2614                         case STACK_TYPE_I8:
2615                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2616                                 break;
2617                         default:
2618                                 g_assert_not_reached ();
2619                         }
2620                         ++td.ip;
2621                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2622                         break;
2623                 case CEE_CONV_OVF_I2:
2624                 case CEE_CONV_OVF_I2_UN:
2625                         CHECK_STACK (&td, 1);
2626                         switch (td.sp [-1].type) {
2627                         case STACK_TYPE_R8:
2628                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2629                                 break;
2630                         case STACK_TYPE_I4:
2631                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2632                                 break;
2633                         case STACK_TYPE_I8:
2634                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2635                                 break;
2636                         default:
2637                                 g_assert_not_reached ();
2638                         }
2639                         ++td.ip;
2640                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2641                         break;
2642                 case CEE_CONV_OVF_U2_UN:
2643                 case CEE_CONV_OVF_U2:
2644                         CHECK_STACK (&td, 1);
2645                         switch (td.sp [-1].type) {
2646                         case STACK_TYPE_R8:
2647                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2648                                 break;
2649                         case STACK_TYPE_I4:
2650                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2651                                 break;
2652                         case STACK_TYPE_I8:
2653                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2654                                 break;
2655                         default:
2656                                 g_assert_not_reached ();
2657                         }
2658                         ++td.ip;
2659                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2660                         break;
2661 #if SIZEOF_VOID_P == 4
2662                 case CEE_CONV_OVF_I:
2663 #endif
2664                 case CEE_CONV_OVF_I4:
2665                 case CEE_CONV_OVF_I4_UN:
2666                         CHECK_STACK (&td, 1);
2667                         switch (td.sp [-1].type) {
2668                         case STACK_TYPE_R8:
2669                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2670                                 break;
2671                         case STACK_TYPE_I4:
2672                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2673                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2674                                 break;
2675                         case STACK_TYPE_I8:
2676                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2677                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2678                                 else
2679                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2680                                 break;
2681                         default:
2682                                 g_assert_not_reached ();
2683                         }
2684                         ++td.ip;
2685                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2686                         break;
2687 #if SIZEOF_VOID_P == 4
2688                 case CEE_CONV_OVF_U:
2689 #endif
2690                 case CEE_CONV_OVF_U4:
2691                 case CEE_CONV_OVF_U4_UN:
2692                         CHECK_STACK (&td, 1);
2693                         switch (td.sp [-1].type) {
2694                         case STACK_TYPE_R8:
2695                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2696                                 break;
2697                         case STACK_TYPE_I4:
2698                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2699                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2700                                 break;
2701                         case STACK_TYPE_I8:
2702                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2703                                 break;
2704                         default:
2705                                 g_assert_not_reached ();
2706                         }
2707                         ++td.ip;
2708                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2709                         break;
2710 #if SIZEOF_VOID_P == 8
2711                 case CEE_CONV_OVF_I:
2712 #endif
2713                 case CEE_CONV_OVF_I8:
2714                         CHECK_STACK (&td, 1);
2715                         switch (td.sp [-1].type) {
2716                         case STACK_TYPE_R8:
2717                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2718                                 break;
2719                         case STACK_TYPE_I4:
2720                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2721                                 break;
2722                         case STACK_TYPE_I8:
2723                                 break;
2724                         default:
2725                                 g_assert_not_reached ();
2726                         }
2727                         ++td.ip;
2728                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2729                         break;
2730 #if SIZEOF_VOID_P == 8
2731                 case CEE_CONV_OVF_U:
2732 #endif
2733                 case CEE_CONV_OVF_U8:
2734                         CHECK_STACK (&td, 1);
2735                         switch (td.sp [-1].type) {
2736                         case STACK_TYPE_R8:
2737                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2738                                 break;
2739                         case STACK_TYPE_I4:
2740                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2741                                 break;
2742                         case STACK_TYPE_I8:
2743                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2744                                 break;
2745                         default:
2746                                 g_assert_not_reached ();
2747                         }
2748                         ++td.ip;
2749                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2750                         break;
2751                 case CEE_LDTOKEN: {
2752                         int size;
2753                         gpointer handle;
2754                         token = read32 (td.ip + 1);
2755                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2756                                 handle = mono_method_get_wrapper_data (method, token);
2757                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2758                                 if (klass == mono_defaults.typehandle_class)
2759                                         handle = &((MonoClass *) handle)->byval_arg;
2760
2761                                 if (generic_context) {
2762                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
2763                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2764                                 }
2765                         } else {
2766                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2767                         }
2768                         mono_class_init (klass);
2769                         mt = mint_type (&klass->byval_arg);
2770                         g_assert (mt == MINT_TYPE_VT);
2771                         size = mono_class_value_size (klass, NULL);
2772                         g_assert (size == sizeof(gpointer));
2773                         PUSH_VT (&td, sizeof(gpointer));
2774                         ADD_CODE (&td, MINT_LDTOKEN);
2775                         ADD_CODE (&td, get_data_item_index (&td, handle));
2776
2777                         SET_TYPE (td.sp, stack_type [mt], klass);
2778                         td.sp++;
2779                         td.ip += 5;
2780                         break;
2781                 }
2782                 case CEE_ADD_OVF:
2783                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2784                         ++td.ip;
2785                         break;
2786                 case CEE_ADD_OVF_UN:
2787                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2788                         ++td.ip;
2789                         break;
2790                 case CEE_MUL_OVF:
2791                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2792                         ++td.ip;
2793                         break;
2794                 case CEE_MUL_OVF_UN:
2795                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2796                         ++td.ip;
2797                         break;
2798                 case CEE_SUB_OVF:
2799                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2800                         ++td.ip;
2801                         break;
2802                 case CEE_SUB_OVF_UN:
2803                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2804                         ++td.ip;
2805                         break;
2806                 case CEE_ENDFINALLY:
2807                         td.sp = td.stack;
2808                         SIMPLE_OP (td, MINT_ENDFINALLY);
2809                         generating_code = 0;
2810                         break;
2811                 case CEE_LEAVE:
2812                         td.sp = td.stack;
2813                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2814                         td.ip += 5;
2815                         generating_code = 0;
2816                         break;
2817                 case CEE_LEAVE_S:
2818                         td.sp = td.stack;
2819                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2820                         td.ip += 2;
2821                         generating_code = 0;
2822                         break;
2823                 case CEE_UNUSED41:
2824                         ++td.ip;
2825                         switch (*td.ip) {
2826                                 case CEE_MONO_CALLI_EXTRA_ARG:
2827                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2828                                         ADD_CODE (&td, MINT_POP);
2829                                         ADD_CODE (&td, 1);
2830                                         --td.sp;
2831                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2832                                         break;
2833                                 case CEE_MONO_JIT_ICALL_ADDR: {
2834                                         guint32 token;
2835                                         gpointer func;
2836                                         MonoJitICallInfo *info;
2837
2838                                         token = read32 (td.ip + 1);
2839                                         td.ip += 5;
2840                                         func = mono_method_get_wrapper_data (method, token);
2841                                         info = mono_find_jit_icall_by_addr (func);
2842
2843                                         ADD_CODE (&td, MINT_LDFTN);
2844                                         ADD_CODE (&td, get_data_item_index (&td, func));
2845                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2846                                         break;
2847                                 }
2848                                 case CEE_MONO_ICALL: {
2849                                         guint32 token;
2850                                         gpointer func;
2851                                         MonoJitICallInfo *info;
2852
2853                                         token = read32 (td.ip + 1);
2854                                         td.ip += 5;
2855                                         func = mono_method_get_wrapper_data (method, token);
2856                                         info = mono_find_jit_icall_by_addr (func);
2857                                         g_assert (info);
2858
2859                                         CHECK_STACK (&td, info->sig->param_count);
2860                                         switch (info->sig->param_count) {
2861                                         case 0:
2862                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2863                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2864                                                 else
2865                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2866                                                 break;
2867                                         case 1:
2868                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2869                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2870                                                 else
2871                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2872                                                 break;
2873                                         case 2:
2874                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2875                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2876                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2877                                                         else
2878                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2879                                                 } else {
2880                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2881                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2882                                                         else
2883                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2884                                                 }
2885                                                 break;
2886                                         case 3:
2887                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2888                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2889                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2890                                                 else
2891                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2892                                                 break;
2893                                         default:
2894                                                 g_assert_not_reached ();
2895                                         }
2896
2897                                         if (func == mono_ftnptr_to_delegate) {
2898                                                 g_error ("TODO: ?");
2899                                         }
2900                                         ADD_CODE(&td, get_data_item_index (&td, func));
2901                                         td.sp -= info->sig->param_count;
2902
2903                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2904                                                 td.sp ++;
2905                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2906                                         }
2907                                         break;
2908                                 }
2909                         case CEE_MONO_VTADDR: {
2910                                 int size;
2911                                 CHECK_STACK (&td, 1);
2912                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2913                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2914                                 else
2915                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2916                                 size = (size + 7) & ~7;
2917                                 ADD_CODE(&td, MINT_VTRESULT);
2918                                 ADD_CODE(&td, 0);
2919                                 WRITE32(&td, &size);
2920                                 td.vt_sp -= size;
2921                                 ++td.ip;
2922                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2923                                 break;
2924                         }
2925                         case CEE_MONO_LDPTR:
2926                         case CEE_MONO_CLASSCONST:
2927                                 token = read32 (td.ip + 1);
2928                                 td.ip += 5;
2929                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2930                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2931                                 td.sp [0].type = STACK_TYPE_I;
2932                                 ++td.sp;
2933                                 break;
2934                         case CEE_MONO_OBJADDR:
2935                                 CHECK_STACK (&td, 1);
2936                                 ++td.ip;
2937                                 td.sp[-1].type = STACK_TYPE_MP;
2938                                 /* do nothing? */
2939                                 break;
2940                         case CEE_MONO_NEWOBJ:
2941                                 token = read32 (td.ip + 1);
2942                                 td.ip += 5;
2943                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2944                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2945                                 td.sp [0].type = STACK_TYPE_O;
2946                                 ++td.sp;
2947                                 break;
2948                         case CEE_MONO_RETOBJ:
2949                                 CHECK_STACK (&td, 1);
2950                                 token = read32 (td.ip + 1);
2951                                 td.ip += 5;
2952                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2953                                 td.sp--;
2954
2955                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2956
2957                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2958
2959                                 if (td.sp > td.stack)
2960                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2961                                 break;
2962                         case CEE_MONO_LDNATIVEOBJ:
2963                                 token = read32 (td.ip + 1);
2964                                 td.ip += 5;
2965                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2966                                 g_assert(klass->valuetype);
2967                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2968                                 break;
2969                         case CEE_MONO_SAVE_LMF:
2970                         case CEE_MONO_RESTORE_LMF:
2971                         case CEE_MONO_NOT_TAKEN:
2972                                 ++td.ip;
2973                                 break;
2974                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
2975                                 ADD_CODE (&td, MINT_MONO_LDPTR);
2976                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
2977                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
2978                                 ++td.ip;
2979                                 break;
2980                         default:
2981                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2982                         }
2983                         break;
2984 #if 0
2985                 case CEE_PREFIX7:
2986                 case CEE_PREFIX6:
2987                 case CEE_PREFIX5:
2988                 case CEE_PREFIX4:
2989                 case CEE_PREFIX3:
2990                 case CEE_PREFIX2:
2991                 case CEE_PREFIXREF: ves_abort(); break;
2992 #endif
2993                 /*
2994                  * Note: Exceptions thrown when executing a prefixed opcode need
2995                  * to take into account the number of prefix bytes (usually the
2996                  * throw point is just (ip - n_prefix_bytes).
2997                  */
2998                 case CEE_PREFIX1:
2999                         ++td.ip;
3000                         switch (*td.ip) {
3001 #if 0
3002                         case CEE_ARGLIST: ves_abort(); break;
3003 #endif
3004                         case CEE_CEQ:
3005                                 CHECK_STACK(&td, 2);
3006                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3007                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3008                                 else
3009                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
3010                                 --td.sp;
3011                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3012                                 ++td.ip;
3013                                 break;
3014                         case CEE_CGT:
3015                                 CHECK_STACK(&td, 2);
3016                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3017                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3018                                 else
3019                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3020                                 --td.sp;
3021                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3022                                 ++td.ip;
3023                                 break;
3024                         case CEE_CGT_UN:
3025                                 CHECK_STACK(&td, 2);
3026                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3027                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3028                                 else
3029                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3030                                 --td.sp;
3031                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3032                                 ++td.ip;
3033                                 break;
3034                         case CEE_CLT:
3035                                 CHECK_STACK(&td, 2);
3036                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3037                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3038                                 else
3039                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3040                                 --td.sp;
3041                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3042                                 ++td.ip;
3043                                 break;
3044                         case CEE_CLT_UN:
3045                                 CHECK_STACK(&td, 2);
3046                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3047                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3048                                 else
3049                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3050                                 --td.sp;
3051                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3052                                 ++td.ip;
3053                                 break;
3054                         case CEE_LDVIRTFTN: /* fallthrough */
3055                         case CEE_LDFTN: {
3056                                 MonoMethod *m;
3057                                 if (*td.ip == CEE_LDVIRTFTN) {
3058                                         CHECK_STACK (&td, 1);
3059                                         --td.sp;
3060                                 }
3061                                 token = read32 (td.ip + 1);
3062                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3063                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3064                                 else
3065                                         m = mono_get_method_full (image, token, NULL, generic_context);
3066
3067                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3068                                         m = mono_marshal_get_synchronized_wrapper (m);
3069
3070                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3071                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3072                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3073                                 td.ip += 5;
3074                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3075                                 break;
3076                         }
3077                         case CEE_LDARG:
3078                                 load_arg (&td, read16 (td.ip + 1));
3079                                 td.ip += 3;
3080                                 break;
3081                         case CEE_LDARGA: {
3082                                 int n = read16 (td.ip + 1);
3083                                 ADD_CODE (&td, MINT_LDARGA);
3084                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3085                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3086                                 td.ip += 3;
3087                                 break;
3088                         }
3089                         case CEE_STARG:
3090                                 store_arg (&td, read16 (td.ip + 1));
3091                                 td.ip += 3;
3092                                 break;
3093                         case CEE_LDLOC:
3094                                 load_local (&td, read16 (td.ip + 1));
3095                                 td.ip += 3;
3096                                 break;
3097                         case CEE_LDLOCA:
3098                                 ADD_CODE(&td, MINT_LDLOCA_S);
3099                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3100                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3101                                 td.ip += 3;
3102                                 break;
3103                         case CEE_STLOC:
3104                                 store_local (&td, read16 (td.ip + 1));
3105                                 td.ip += 3;
3106                                 break;
3107                         case CEE_LOCALLOC:
3108                                 CHECK_STACK (&td, 1);
3109 #if SIZEOF_VOID_P == 8
3110                                 if (td.sp [-1].type == STACK_TYPE_I8)
3111                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3112 #endif
3113                                 ADD_CODE(&td, MINT_LOCALLOC);
3114                                 if (td.sp != td.stack + 1)
3115                                         g_warning("CEE_LOCALLOC: stack not empty");
3116                                 ++td.ip;
3117                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3118                                 break;
3119 #if 0
3120                         case CEE_UNUSED57: ves_abort(); break;
3121 #endif
3122                         case CEE_ENDFILTER:
3123                                 ADD_CODE (&td, MINT_ENDFILTER);
3124                                 ++td.ip;
3125                                 break;
3126                         case CEE_UNALIGNED_:
3127                                 ++td.ip;
3128                                 /* FIX: should do something? */;
3129                                 break;
3130                         case CEE_VOLATILE_:
3131                                 ++td.ip;
3132                                 /* FIX: should do something? */;
3133                                 break;
3134                         case CEE_TAIL_:
3135                                 ++td.ip;
3136                                 /* FIX: should do something? */;
3137                                 break;
3138                         case CEE_INITOBJ:
3139                                 CHECK_STACK(&td, 1);
3140                                 token = read32 (td.ip + 1);
3141                                 klass = mono_class_get_full (image, token, generic_context);
3142                                 if (klass->valuetype) {
3143                                         ADD_CODE (&td, MINT_INITOBJ);
3144                                         i32 = mono_class_value_size (klass, NULL);
3145                                         WRITE32 (&td, &i32);
3146                                 } else {
3147                                         ADD_CODE (&td, MINT_LDNULL);
3148                                         ADD_CODE (&td, MINT_STIND_REF);
3149                                 }
3150                                 td.ip += 5;
3151                                 --td.sp;
3152                                 break;
3153                         case CEE_CPBLK:
3154                                 CHECK_STACK(&td, 3);
3155                                 /* FIX? convert length to I8? */
3156                                 ADD_CODE(&td, MINT_CPBLK);
3157                                 td.sp -= 3;
3158                                 ++td.ip;
3159                                 break;
3160                         case CEE_READONLY_:
3161                                 readonly = TRUE;
3162                                 td.ip += 1;
3163                                 break;
3164                         case CEE_CONSTRAINED_:
3165                                 token = read32 (td.ip + 1);
3166                                 constrained_class = mono_class_get_full (image, token, generic_context);
3167                                 mono_class_init (constrained_class);
3168                                 td.ip += 5;
3169                                 break;
3170                         case CEE_INITBLK:
3171                                 CHECK_STACK(&td, 3);
3172                                 ADD_CODE(&td, MINT_INITBLK);
3173                                 td.sp -= 3;
3174                                 td.ip += 1;
3175                                 break;
3176 #if 0
3177                         case CEE_NO_:
3178                                 /* FIXME: implement */
3179                                 ip += 2;
3180                                 break;
3181 #endif
3182                         case CEE_RETHROW:
3183                                 SIMPLE_OP (td, MINT_RETHROW);
3184                                 generating_code = 0;
3185                                 break;
3186                         case CEE_SIZEOF: {
3187                                 gint32 size;
3188                                 token = read32 (td.ip + 1);
3189                                 td.ip += 5;
3190                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3191                                         int align;
3192                                         MonoType *type = mono_type_create_from_typespec (image, token);
3193                                         size = mono_type_size (type, &align);
3194                                 } else {
3195                                         int align;
3196                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
3197                                         mono_class_init (szclass);
3198 #if 0
3199                                         if (!szclass->valuetype)
3200                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3201 #endif
3202                                         size = mono_type_size (&szclass->byval_arg, &align);
3203                                 }
3204                                 ADD_CODE(&td, MINT_LDC_I4);
3205                                 WRITE32(&td, &size);
3206                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3207                                 break;
3208                         }
3209 #if 0
3210                         case CEE_REFANYTYPE: ves_abort(); break;
3211 #endif
3212                         default:
3213                                 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);
3214                         }
3215                         break;
3216                 default:
3217                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3218                 }
3219
3220                 if (td.new_ip - td.new_code != new_in_start_offset)
3221                         td.last_new_ip = td.new_code + new_in_start_offset;
3222                 else if (td.is_bb_start [td.in_start - td.il_code])
3223                         td.is_bb_start [td.ip - td.il_code] = 1;
3224
3225                 td.last_ip = td.in_start;
3226         }
3227
3228         if (mono_interp_traceopt) {
3229                 const guint16 *p = td.new_code;
3230                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3231                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3232                 while (p < td.new_ip) {
3233                         p = mono_interp_dis_mintop(td.new_code, p);
3234                         printf("\n");
3235                 }
3236         }
3237         g_assert (td.max_stack_height <= (header->max_stack + 1));
3238
3239         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3240         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3241         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3242         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3243         g_free (td.new_code);
3244         rtm->new_body_start = rtm->code + body_start_offset;
3245         rtm->num_clauses = header->num_clauses;
3246         for (i = 0; i < header->num_clauses; i++) {
3247                 MonoExceptionClause *c = rtm->clauses + i;
3248                 int end_off = c->try_offset + c->try_len;
3249                 c->try_offset = td.in_offsets [c->try_offset];
3250                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3251                 end_off = c->handler_offset + c->handler_len;
3252                 c->handler_offset = td.in_offsets [c->handler_offset];
3253                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3254                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3255                         c->data.filter_offset = td.in_offsets [c->data.filter_offset];
3256         }
3257         rtm->vt_stack_size = td.max_vt_sp;
3258         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3259         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3260         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3261         g_free (td.in_offsets);
3262         g_free (td.forward_refs);
3263         for (i = 0; i < header->code_size; ++i)
3264                 g_free (td.stack_state [i]);
3265         g_free (td.stack_state);
3266         g_free (td.stack_height);
3267         g_free (td.vt_stack_size);
3268         g_free (td.data_items);
3269         g_free (td.stack);
3270         g_hash_table_destroy (td.data_hash);
3271 }
3272
3273 static mono_mutex_t calc_section;
3274
3275 void
3276 mono_interp_transform_init (void)
3277 {
3278         mono_os_mutex_init_recursive(&calc_section);
3279 }
3280
3281 MonoException *
3282 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3283 {
3284         int i, align, size, offset;
3285         MonoMethod *method = runtime_method->method;
3286         MonoImage *image = method->klass->image;
3287         MonoMethodHeader *header = mono_method_get_header (method);
3288         MonoMethodSignature *signature = mono_method_signature (method);
3289         register const unsigned char *ip, *end;
3290         const MonoOpcode *opcode;
3291         MonoMethod *m;
3292         MonoClass *class;
3293         MonoDomain *domain = mono_domain_get ();
3294         unsigned char *is_bb_start;
3295         int in;
3296         MonoVTable *method_class_vt;
3297         int backwards;
3298         MonoGenericContext *generic_context = NULL;
3299
3300         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3301         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3302         if (!method_class_vt->initialized) {
3303                 MonoError error;
3304                 jmp_buf env;
3305                 MonoInvocation *last_env_frame = context->env_frame;
3306                 jmp_buf *old_env = context->current_env;
3307                 error_init (&error);
3308
3309                 if (setjmp(env)) {
3310                         MonoException *failed = context->env_frame->ex;
3311                         context->env_frame->ex = NULL;
3312                         context->env_frame = last_env_frame;
3313                         context->current_env = old_env;
3314                         return failed;
3315                 }
3316                 context->env_frame = context->current_frame;
3317                 context->current_env = &env;
3318                 mono_runtime_class_init_full (method_class_vt, &error);
3319                 if (!mono_error_ok (&error)) {
3320                         return mono_error_convert_to_exception (&error);
3321                 }
3322                 context->env_frame = last_env_frame;
3323                 context->current_env = old_env;
3324         }
3325
3326         mono_profiler_method_jit (method); /* sort of... */
3327
3328         if (mono_method_signature (method)->is_inflated)
3329                 generic_context = mono_method_get_context (method);
3330         else {
3331                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3332                 if (generic_container)
3333                         generic_context = &generic_container->context;
3334         }
3335
3336         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3337                 MonoMethod *nm = NULL;
3338                 mono_os_mutex_lock(&calc_section);
3339                 if (runtime_method->transformed) {
3340                         mono_os_mutex_unlock(&calc_section);
3341                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3342                         return NULL;
3343                 }
3344
3345                 /* assumes all internal calls with an array this are built in... */
3346                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3347                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3348                         signature = mono_method_signature (nm);
3349                 } else {
3350                         const char *name = method->name;
3351                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3352                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3353                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3354                                         g_assert (mi);
3355                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3356                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3357                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3358                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3359                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3360                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3361                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3362                                         nm = mono_marshal_get_delegate_end_invoke (method);
3363                                 }
3364                         }
3365                         if (nm == NULL) {
3366                                 runtime_method->code = g_malloc(sizeof(short));
3367                                 runtime_method->code[0] = MINT_CALLRUN;
3368                         }
3369                 }
3370                 if (nm == NULL) {
3371                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3372                         runtime_method->alloca_size = runtime_method->stack_size;
3373                         runtime_method->transformed = TRUE;
3374                         mono_os_mutex_unlock(&calc_section);
3375                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3376                         return NULL;
3377                 }
3378                 method = nm;
3379                 header = mono_method_get_header (nm);
3380                 mono_os_mutex_unlock(&calc_section);
3381         } else if (method->klass == mono_defaults.array_class) {
3382                 if (!strcmp (method->name, "UnsafeMov")) {
3383                         mono_os_mutex_lock (&calc_section);
3384                         if (!runtime_method->transformed) {
3385                                 runtime_method->code = g_malloc (sizeof (short));
3386                                 runtime_method->code[0] = MINT_CALLRUN;
3387                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
3388                                 runtime_method->alloca_size = runtime_method->stack_size;
3389                                 runtime_method->transformed = TRUE;
3390                         }
3391                         mono_os_mutex_unlock(&calc_section);
3392                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3393                         return NULL;
3394                 } else if (!strcmp (method->name, "UnsafeStore)")) {
3395                         g_error ("TODO");
3396                 } else if (!strcmp (method->name, "UnsafeLoad)")) {
3397                         g_error ("TODO");
3398                 }
3399         }
3400         g_assert ((signature->param_count + signature->hasthis) < 1000);
3401         g_assert (header->max_stack < 10000);
3402         /* intern the strings in the method. */
3403         ip = header->code;
3404         end = ip + header->code_size;
3405
3406         is_bb_start = g_malloc0(header->code_size);
3407         is_bb_start [0] = 1;
3408         while (ip < end) {
3409                 in = *ip;
3410                 if (in == 0xfe) {
3411                         ip++;
3412                         in = *ip + 256;
3413                 }
3414                 else if (in == 0xf0) {
3415                         ip++;
3416                         in = *ip + MONO_CEE_MONO_ICALL;
3417                 }
3418                 opcode = &mono_opcodes [in];
3419                 switch (opcode->argument) {
3420                 case MonoInlineNone:
3421                         ++ip;
3422                         break;
3423                 case MonoInlineString:
3424                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3425                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3426                         ip += 5;
3427                         break;
3428                 case MonoInlineType:
3429                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3430                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
3431                                 mono_class_init (class);
3432                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3433 #if 0
3434                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3435                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3436                                         mono_class_vtable (domain, class);
3437 #endif
3438                         }
3439                         ip += 5;
3440                         break;
3441                 case MonoInlineMethod:
3442                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3443                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3444                                 if (m == NULL) {
3445                                         g_free (is_bb_start);
3446                                         g_error ("FIXME: where to get method and class string?");
3447                                         return NULL;
3448                                         // return mono_get_exception_missing_method ();
3449                                 }
3450                                 mono_class_init (m->klass);
3451                                 if (!mono_class_is_interface (m->klass))
3452                                         mono_class_vtable (domain, m->klass);
3453                         }
3454                         ip += 5;
3455                         break;
3456                 case MonoInlineField:
3457                 case MonoInlineSig:
3458                 case MonoInlineI:
3459                 case MonoInlineTok:
3460                 case MonoShortInlineR:
3461                         ip += 5;
3462                         break;
3463                 case MonoInlineBrTarget:
3464                         offset = read32 (ip + 1);
3465                         ip += 5;
3466                         backwards = offset < 0;
3467                         offset += ip - header->code;
3468                         g_assert (offset >= 0 && offset < header->code_size);
3469                         is_bb_start [offset] |= backwards ? 2 : 1;
3470                         break;
3471                 case MonoShortInlineBrTarget:
3472                         offset = ((gint8 *)ip) [1];
3473                         ip += 2;
3474                         backwards = offset < 0;
3475                         offset += ip - header->code;
3476                         g_assert (offset >= 0 && offset < header->code_size);
3477                         is_bb_start [offset] |= backwards ? 2 : 1;
3478                         break;
3479                 case MonoInlineVar:
3480                         ip += 3;
3481                         break;
3482                 case MonoShortInlineVar:
3483                 case MonoShortInlineI:
3484                         ip += 2;
3485                         break;
3486                 case MonoInlineSwitch: {
3487                         guint32 n;
3488                         const unsigned char *next_ip;
3489                         ++ip;
3490                         n = read32 (ip);
3491                         ip += 4;
3492                         next_ip = ip + 4 * n;
3493                         for (i = 0; i < n; i++) {
3494                                 offset = read32 (ip);
3495                                 backwards = offset < 0;
3496                                 offset += next_ip - header->code;
3497                                 g_assert (offset >= 0 && offset < header->code_size);
3498                                 is_bb_start [offset] |= backwards ? 2 : 1;
3499                                 ip += 4;
3500                         }
3501                         break;
3502                 }
3503                 case MonoInlineR:
3504                 case MonoInlineI8:
3505                         ip += 9;
3506                         break;
3507                 default:
3508                         g_assert_not_reached ();
3509                 }
3510         }
3511         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3512
3513         /* the rest needs to be locked so it is only done once */
3514         mono_os_mutex_lock(&calc_section);
3515         if (runtime_method->transformed) {
3516                 mono_os_mutex_unlock(&calc_section);
3517                 g_free (is_bb_start);
3518                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3519                 return NULL;
3520         }
3521
3522         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3523         runtime_method->stack_size = (sizeof (stackval)) * (header->max_stack + 2); /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3524         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3525         offset = 0;
3526         for (i = 0; i < header->num_locals; ++i) {
3527                 size = mono_type_size (header->locals [i], &align);
3528                 offset += align - 1;
3529                 offset &= ~(align - 1);
3530                 runtime_method->local_offsets [i] = offset;
3531                 offset += size;
3532         }
3533         offset = (offset + 7) & ~7;
3534         runtime_method->locals_size = offset;
3535         g_assert (runtime_method->locals_size < 65536);
3536         offset = 0;
3537         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3538
3539         if (signature->hasthis) {
3540                 g_assert (!signature->pinvoke);
3541                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3542                 offset += align - 1;
3543                 offset &= ~(align - 1);
3544                 runtime_method->arg_offsets [0] = offset;
3545                 offset += size;
3546         }
3547
3548         for (i = 0; i < signature->param_count; ++i) {
3549                 if (signature->pinvoke) {
3550                         guint32 dummy;
3551                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3552                         align = 8;
3553                 }
3554                 else
3555                         size = mono_type_stack_size (signature->params [i], &align);
3556                 offset += align - 1;
3557                 offset &= ~(align - 1);
3558                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3559                 offset += size;
3560         }
3561         offset = (offset + 7) & ~7;
3562         runtime_method->args_size = offset;
3563         g_assert (runtime_method->args_size < 10000);
3564
3565         generate (method, runtime_method, is_bb_start, generic_context);
3566
3567         g_free (is_bb_start);
3568
3569         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3570         runtime_method->transformed = TRUE;
3571         mono_os_mutex_unlock(&calc_section);
3572
3573         return NULL;
3574 }
3575