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                         for (i = csignature->param_count - 1; i >= 0; --i)
 815                                 store_arg (td, i + csignature->hasthis);
 816
 817                         ADD_CODE(td, MINT_BR_S);
 818                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 819                         ADD_CODE(td, offset);
 820                         if (!is_bb_start [td->ip + 5 - td->il_code])
 821                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 822                         td->ip += 5;
 823                         return;
 824                 } else {
 825                         /* mheader might not exist if this is a delegate invoc, etc */
 826                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 827                                 if (mono_interp_traceopt)
 828                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 829                                 for (i = 0; i < csignature->param_count; i++)
 830                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 831                                         ADD_CODE (td, 0);
 832                                 if (csignature->hasthis) {
 833                                         if (virtual)
 834                                                 ADD_CODE(td, MINT_CKNULL);
 835                                         ADD_CODE (td, MINT_POP);
 836                                         ADD_CODE (td, 0);
 837                                 }
 838                                 td->sp -= csignature->param_count + csignature->hasthis;
 839                                 td->ip += 5;
 840                                 return;
 841                         }
 842                 }
 843         }
 844         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 845                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 846                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 847                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 848                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 849         }
 850         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 851         td->sp -= csignature->param_count + !!csignature->hasthis;
 852         for (i = 0; i < csignature->param_count; ++i) {
 853                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 854                         gint32 size;
 855                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 856                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 857                                 size = mono_class_native_size (klass, NULL);
 858                         else
 859                                 size = mono_class_value_size (klass, NULL);
 860                         size = (size + 7) & ~7;
 861                         vt_stack_used += size;
 862                 }
 863         }
 864
 865         /* need to handle typedbyref ... */
 866         if (csignature->ret->type != MONO_TYPE_VOID) {
 867                 int mt = mint_type(csignature->ret);
 868                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 869                 if (mt == MINT_TYPE_VT) {
 870                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 871                                 vt_res_size = mono_class_native_size (klass, NULL);
 872                         else
 873                                 vt_res_size = mono_class_value_size (klass, NULL);
 874                         PUSH_VT(td, vt_res_size);
 875                 }
 876                 PUSH_TYPE(td, stack_type[mt], klass);
 877         } else
 878                 is_void = TRUE;
 879
 880         if (op >= 0) {
 881                 ADD_CODE (td, op);
 882 #if SIZEOF_VOID_P == 8
 883                 if (op == MINT_LDLEN)
 884                         ADD_CODE (td, MINT_CONV_I4_I8);
 885 #endif
 886                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 887                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 888                         ADD_CODE (td, 1 + target_method->klass->rank);
 889                 }
 890         } else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
 891                 ADD_CODE(td, MINT_JIT_CALL);
 892                 ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 893                 mono_error_assert_ok (&error);
 894         } else {
 895                 if (calli)
 896                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 897                 else if (virtual)
 898                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 899                 else
 900                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 901
 902                 if (calli) {
 903                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 904                 } else {
 905                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 906                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 907                 }
 908         }
 909         td->ip += 5;
 910         if (vt_stack_used != 0 || vt_res_size != 0) {
 911                 ADD_CODE(td, MINT_VTRESULT);
 912                 ADD_CODE(td, vt_res_size);
 913                 WRITE32(td, &vt_stack_used);
 914                 td->vt_sp -= vt_stack_used;
 915         }
 916 }
 917
 918 static void
 919 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
 920 {
 921         MonoMethodHeader *header = mono_method_get_header (method);
 922         MonoMethodSignature *signature = mono_method_signature (method);
 923         MonoImage *image = method->klass->image;
 924         MonoDomain *domain = mono_domain_get ();
 925         MonoClass *constrained_class = NULL;
 926         MonoError error;
 927         int offset, mt, i, i32;
 928         gboolean readonly = FALSE;
 929         MonoClass *klass;
 930         MonoClassField *field;
 931         const unsigned char *end;
 932         int new_in_start_offset;
 933         int body_start_offset;
 934         int target;
 935         guint32 token;
 936         TransformData td;
 937         int generating_code = 1;
 938
 939         memset(&td, 0, sizeof(td));
 940         td.method = method;
 941         td.rtm = rtm;
 942         td.is_bb_start = is_bb_start;
 943         td.il_code = header->code;
 944         td.code_size = header->code_size;
 945         td.header = header;
 946         td.max_code_size = td.code_size;
 947         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 948         td.new_code_end = td.new_code + td.max_code_size;
 949         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 950         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 951         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 952         td.stack_height = g_malloc(header->code_size * sizeof(int));
 953         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 954         td.n_data_items = 0;
 955         td.max_data_items = 0;
 956         td.data_items = NULL;
 957         td.data_hash = g_hash_table_new (NULL, NULL);
 958         rtm->data_items = td.data_items;
 959         for (i = 0; i < header->code_size; i++) {
 960                 td.forward_refs [i] = -1;
 961                 td.stack_height [i] = -1;
 962         }
 963         td.new_ip = td.new_code;
 964         td.last_new_ip = NULL;
 965
 966         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
 967         td.sp = td.stack;
 968         td.max_stack_height = 0;
 969
 970         for (i = 0; i < header->num_clauses; i++) {
 971                 MonoExceptionClause *c = header->clauses + i;
 972                 td.stack_height [c->handler_offset] = 0;
 973                 td.vt_stack_size [c->handler_offset] = 0;
 974                 td.is_bb_start [c->handler_offset] = 1;
 975
 976                 td.stack_height [c->handler_offset] = 1;
 977                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 978                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 979                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 980         }
 981
 982         td.ip = header->code;
 983         end = td.ip + header->code_size;
 984
 985         if (mono_interp_traceopt) {
 986                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 987                 char *name = mono_method_full_name (method, TRUE);
 988                 g_print ("Method %s, original code:\n", name);
 989                 g_print ("%s\n", tmp);
 990                 g_free (tmp);
 991                 g_free (name);
 992         }
 993
 994         if (signature->hasthis)
 995                 store_inarg (&td, 0);
 996         for (i = 0; i < signature->param_count; i++)
 997                 store_inarg (&td, i + !!signature->hasthis);
 998
 999         body_start_offset = td.new_ip - td.new_code;
1000
1001         for (i = 0; i < header->num_locals; i++) {
1002                 int mt = mint_type(header->locals [i]);
1003                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1004                         ADD_CODE(&td, MINT_INITLOCALS);
1005                         break;
1006                 }
1007         }
1008
1009         while (td.ip < end) {
1010                 int in_offset;
1011
1012                 g_assert (td.sp >= td.stack);
1013                 g_assert (td.vt_sp < 0x10000000);
1014                 in_offset = td.ip - header->code;
1015                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
1016                 new_in_start_offset = td.new_ip - td.new_code;
1017                 td.in_start = td.ip;
1018                 while (td.forward_refs [in_offset] >= 0) {
1019                         int j = td.forward_refs [in_offset];
1020                         int slot;
1021                         td.forward_refs [in_offset] = td.forward_refs [j];
1022                         if (td.in_offsets [j] < 0) {
1023                                 int old_switch_offset = -td.in_offsets [j];
1024                                 int new_switch_offset = td.in_offsets [old_switch_offset];
1025                                 int switch_case = (j - old_switch_offset - 5) / 4;
1026                                 int n_cases = read32 (header->code + old_switch_offset + 1);
1027                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
1028                                 slot = new_switch_offset + 3 + 2 * switch_case;
1029                                 td.new_code [slot] = * (unsigned short *)(&offset);
1030                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1031                         } else {
1032                                 int op = td.new_code [td.in_offsets [j]];
1033                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1034                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1035                                         g_assert (offset <= 32767);
1036                                         slot = td.in_offsets [j] + 1;
1037                                         td.new_code [slot] = offset;
1038                                 } else {
1039                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1040                                         slot = td.in_offsets [j] + 1;
1041                                         td.new_code [slot] = * (unsigned short *)(&offset);
1042                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1043                                 }
1044                         }
1045                 }
1046                 if (td.stack_height [in_offset] >= 0) {
1047                         g_assert (is_bb_start [in_offset]);
1048                         if (td.stack_height [in_offset] > 0)
1049                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1050                         td.sp = td.stack + td.stack_height [in_offset];
1051                         td.vt_sp = td.vt_stack_size [in_offset];
1052                 }
1053                 if (is_bb_start [in_offset]) {
1054                         generating_code = 1;
1055                 }
1056                 if (!generating_code) {
1057                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1058                                 ++td.ip;
1059                         continue;
1060                 }
1061                 if (mono_interp_traceopt > 1) {
1062                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1063                                 td.ip - td.il_code,
1064                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1065                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1066                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1067                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1068                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1069                                 (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) : "",
1070                                 td.vt_sp, td.max_vt_sp);
1071                 }
1072                 switch (*td.ip) {
1073                 case CEE_NOP:
1074                         /* lose it */
1075                         ++td.ip;
1076                         break;
1077                 case CEE_BREAK:
1078                         SIMPLE_OP(td, MINT_BREAK);
1079                         break;
1080                 case CEE_LDARG_0:
1081                 case CEE_LDARG_1:
1082                 case CEE_LDARG_2:
1083                 case CEE_LDARG_3:
1084                         load_arg (&td, *td.ip - CEE_LDARG_0);
1085                         ++td.ip;
1086                         break;
1087                 case CEE_LDLOC_0:
1088                 case CEE_LDLOC_1:
1089                 case CEE_LDLOC_2:
1090                 case CEE_LDLOC_3:
1091                         load_local (&td, *td.ip - CEE_LDLOC_0);
1092                         ++td.ip;
1093                         break;
1094                 case CEE_STLOC_0:
1095                 case CEE_STLOC_1:
1096                 case CEE_STLOC_2:
1097                 case CEE_STLOC_3:
1098                         store_local (&td, *td.ip - CEE_STLOC_0);
1099                         ++td.ip;
1100                         break;
1101                 case CEE_LDARG_S:
1102                         load_arg (&td, ((guint8 *)td.ip)[1]);
1103                         td.ip += 2;
1104                         break;
1105                 case CEE_LDARGA_S: {
1106                         /* NOTE: n includes this */
1107                         int n = ((guint8 *) td.ip) [1];
1108                         ADD_CODE (&td, MINT_LDARGA);
1109                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1110                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1111                         td.ip += 2;
1112                         break;
1113                 }
1114                 case CEE_STARG_S:
1115                         store_arg (&td, ((guint8 *)td.ip)[1]);
1116                         td.ip += 2;
1117                         break;
1118                 case CEE_LDLOC_S:
1119                         load_local (&td, ((guint8 *)td.ip)[1]);
1120                         td.ip += 2;
1121                         break;
1122                 case CEE_LDLOCA_S:
1123                         ADD_CODE(&td, MINT_LDLOCA_S);
1124                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1125                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1126                         td.ip += 2;
1127                         break;
1128                 case CEE_STLOC_S:
1129                         store_local (&td, ((guint8 *)td.ip)[1]);
1130                         td.ip += 2;
1131                         break;
1132                 case CEE_LDNULL:
1133                         SIMPLE_OP(td, MINT_LDNULL);
1134                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1135                         break;
1136                 case CEE_LDC_I4_M1:
1137                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1138                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1139                         break;
1140                 case CEE_LDC_I4_0:
1141                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1142                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1143                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1144                                 td.ip += 2;
1145                         } else {
1146                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1147                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1148                         }
1149                         break;
1150                 case CEE_LDC_I4_1:
1151                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1152                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1153                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1154                                 td.ip += 2;
1155                         } else {
1156                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1157                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1158                         }
1159                         break;
1160                 case CEE_LDC_I4_2:
1161                 case CEE_LDC_I4_3:
1162                 case CEE_LDC_I4_4:
1163                 case CEE_LDC_I4_5:
1164                 case CEE_LDC_I4_6:
1165                 case CEE_LDC_I4_7:
1166                 case CEE_LDC_I4_8:
1167                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1168                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1169                         break;
1170                 case CEE_LDC_I4_S:
1171                         ADD_CODE(&td, MINT_LDC_I4_S);
1172                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1173                         td.ip += 2;
1174                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1175                         break;
1176                 case CEE_LDC_I4:
1177                         i32 = read32 (td.ip + 1);
1178                         ADD_CODE(&td, MINT_LDC_I4);
1179                         WRITE32(&td, &i32);
1180                         td.ip += 5;
1181                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1182                         break;
1183                 case CEE_LDC_I8: {
1184                         gint64 val = read64 (td.ip + 1);
1185                         ADD_CODE(&td, MINT_LDC_I8);
1186                         WRITE64(&td, &val);
1187                         td.ip += 9;
1188                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1189                         break;
1190                 }
1191                 case CEE_LDC_R4: {
1192                         float val;
1193                         readr4 (td.ip + 1, &val);
1194                         ADD_CODE(&td, MINT_LDC_R4);
1195                         WRITE32(&td, &val);
1196                         td.ip += 5;
1197                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1198                         break;
1199                 }
1200                 case CEE_LDC_R8: {
1201                         double val;
1202                         readr8 (td.ip + 1, &val);
1203                         ADD_CODE(&td, MINT_LDC_R8);
1204                         WRITE64(&td, &val);
1205                         td.ip += 9;
1206                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1207                         break;
1208                 }
1209                 case CEE_DUP: {
1210                         int type = td.sp [-1].type;
1211                         MonoClass *klass = td.sp [-1].klass;
1212                         if (td.sp [-1].type == STACK_TYPE_VT) {
1213                                 gint32 size = mono_class_value_size (klass, NULL);
1214                                 PUSH_VT(&td, size);
1215                                 ADD_CODE(&td, MINT_DUP_VT);
1216                                 WRITE32(&td, &size);
1217                                 td.ip ++;
1218                         } else
1219                                 SIMPLE_OP(td, MINT_DUP);
1220                         PUSH_TYPE(&td, type, klass);
1221                         break;
1222                 }
1223                 case CEE_POP:
1224                         CHECK_STACK(&td, 1);
1225                         SIMPLE_OP(td, MINT_POP);
1226                         ADD_CODE (&td, 0);
1227                         if (td.sp [-1].type == STACK_TYPE_VT) {
1228                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1229                                 size = (size + 7) & ~7;
1230                                 ADD_CODE(&td, MINT_VTRESULT);
1231                                 ADD_CODE(&td, 0);
1232                                 WRITE32(&td, &size);
1233                                 td.vt_sp -= size;
1234                         }
1235                         --td.sp;
1236                         break;
1237                 case CEE_JMP: {
1238                         MonoMethod *m;
1239                         if (td.sp > td.stack)
1240                                 g_warning ("CEE_JMP: stack must be empty");
1241                         token = read32 (td.ip + 1);
1242                         m = mono_get_method_full (image, token, NULL, generic_context);
1243                         ADD_CODE (&td, MINT_JMP);
1244                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1245                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1246                         td.ip += 5;
1247                         break;
1248                 }
1249                 case CEE_CALLVIRT: /* Fall through */
1250                 case CEE_CALLI:    /* Fall through */
1251                 case CEE_CALL: {
1252                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1253                         constrained_class = NULL;
1254                         readonly = FALSE;
1255                         break;
1256                 }
1257                 case CEE_RET: {
1258                         int vt_size = 0;
1259                         if (signature->ret->type != MONO_TYPE_VOID) {
1260                                 --td.sp;
1261                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1262                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1263                                         vt_size = mono_class_value_size (klass, NULL);
1264                                         vt_size = (vt_size + 7) & ~7;
1265                                 }
1266                         }
1267                         if (td.sp > td.stack)
1268                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1269                         if (td.vt_sp != vt_size)
1270                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1271                         if (vt_size == 0)
1272                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1273                         else {
1274                                 ADD_CODE(&td, MINT_RET_VT);
1275                                 WRITE32(&td, &vt_size);
1276                                 ++td.ip;
1277                         }
1278                         generating_code = 0;
1279                         break;
1280                 }
1281                 case CEE_BR:
1282                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1283                         td.ip += 5;
1284                         generating_code = 0;
1285                         break;
1286                 case CEE_BR_S:
1287                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1288                         td.ip += 2;
1289                         generating_code = 0;
1290                         break;
1291                 case CEE_BRFALSE:
1292                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1293                         td.ip += 5;
1294                         break;
1295                 case CEE_BRFALSE_S:
1296                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1297                         td.ip += 2;
1298                         break;
1299                 case CEE_BRTRUE:
1300                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1301                         td.ip += 5;
1302                         break;
1303                 case CEE_BRTRUE_S:
1304                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1305                         td.ip += 2;
1306                         break;
1307                 case CEE_BEQ:
1308                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1309                         td.ip += 5;
1310                         break;
1311                 case CEE_BEQ_S:
1312                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1313                         td.ip += 2;
1314                         break;
1315                 case CEE_BGE:
1316                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1317                         td.ip += 5;
1318                         break;
1319                 case CEE_BGE_S:
1320                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1321                         td.ip += 2;
1322                         break;
1323                 case CEE_BGT:
1324                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1325                         td.ip += 5;
1326                         break;
1327                 case CEE_BGT_S:
1328                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1329                         td.ip += 2;
1330                         break;
1331                 case CEE_BLT:
1332                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1333                         td.ip += 5;
1334                         break;
1335                 case CEE_BLT_S:
1336                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1337                         td.ip += 2;
1338                         break;
1339                 case CEE_BLE:
1340                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1341                         td.ip += 5;
1342                         break;
1343                 case CEE_BLE_S:
1344                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1345                         td.ip += 2;
1346                         break;
1347                 case CEE_BNE_UN:
1348                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1349                         td.ip += 5;
1350                         break;
1351                 case CEE_BNE_UN_S:
1352                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1353                         td.ip += 2;
1354                         break;
1355                 case CEE_BGE_UN:
1356                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1357                         td.ip += 5;
1358                         break;
1359                 case CEE_BGE_UN_S:
1360                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1361                         td.ip += 2;
1362                         break;
1363                 case CEE_BGT_UN:
1364                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1365                         td.ip += 5;
1366                         break;
1367                 case CEE_BGT_UN_S:
1368                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1369                         td.ip += 2;
1370                         break;
1371                 case CEE_BLE_UN:
1372                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1373                         td.ip += 5;
1374                         break;
1375                 case CEE_BLE_UN_S:
1376                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1377                         td.ip += 2;
1378                         break;
1379                 case CEE_BLT_UN:
1380                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1381                         td.ip += 5;
1382                         break;
1383                 case CEE_BLT_UN_S:
1384                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1385                         td.ip += 2;
1386                         break;
1387                 case CEE_SWITCH: {
1388                         guint32 n;
1389                         const unsigned char *next_ip;
1390                         const unsigned char *base_ip = td.ip;
1391                         unsigned short *next_new_ip;
1392                         ++td.ip;
1393                         n = read32 (td.ip);
1394                         ADD_CODE (&td, MINT_SWITCH);
1395                         WRITE32 (&td, &n);
1396                         td.ip += 4;
1397                         next_ip = td.ip + n * 4;
1398                         next_new_ip = td.new_ip + n * 2;
1399                         --td.sp;
1400                         int stack_height = td.sp - td.stack;
1401                         for (i = 0; i < n; i++) {
1402                                 offset = read32 (td.ip);
1403                                 target = next_ip - td.il_code + offset;
1404                                 if (offset < 0) {
1405 #if DEBUG_INTERP
1406                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1407                                                 g_warning ("SWITCH with back branch and non-empty stack");
1408 #endif
1409                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1410                                 } else {
1411                                         td.stack_height [target] = stack_height;
1412                                         td.vt_stack_size [target] = td.vt_sp;
1413                                         if (stack_height > 0)
1414                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1415                                         int prev = td.forward_refs [target];
1416                                         td.forward_refs [td.ip - td.il_code] = prev;
1417                                         td.forward_refs [target] = td.ip - td.il_code;
1418                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1419                                 }
1420                                 WRITE32 (&td, &target);
1421                                 td.ip += 4;
1422                         }
1423                         break;
1424                 }
1425                 case CEE_LDIND_I1:
1426                         CHECK_STACK (&td, 1);
1427                         SIMPLE_OP (td, MINT_LDIND_I1);
1428                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1429                         break;
1430                 case CEE_LDIND_U1:
1431                         CHECK_STACK (&td, 1);
1432                         SIMPLE_OP (td, MINT_LDIND_U1);
1433                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1434                         break;
1435                 case CEE_LDIND_I2:
1436                         CHECK_STACK (&td, 1);
1437                         SIMPLE_OP (td, MINT_LDIND_I2);
1438                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1439                         break;
1440                 case CEE_LDIND_U2:
1441                         CHECK_STACK (&td, 1);
1442                         SIMPLE_OP (td, MINT_LDIND_U2);
1443                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1444                         break;
1445                 case CEE_LDIND_I4:
1446                         CHECK_STACK (&td, 1);
1447                         SIMPLE_OP (td, MINT_LDIND_I4);
1448                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1449                         break;
1450                 case CEE_LDIND_U4:
1451                         CHECK_STACK (&td, 1);
1452                         SIMPLE_OP (td, MINT_LDIND_U4);
1453                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1454                         break;
1455                 case CEE_LDIND_I8:
1456                         CHECK_STACK (&td, 1);
1457                         SIMPLE_OP (td, MINT_LDIND_I8);
1458                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1459                         break;
1460                 case CEE_LDIND_I:
1461                         CHECK_STACK (&td, 1);
1462                         SIMPLE_OP (td, MINT_LDIND_I);
1463                         ADD_CODE (&td, 0);
1464                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1465                         break;
1466                 case CEE_LDIND_R4:
1467                         CHECK_STACK (&td, 1);
1468                         SIMPLE_OP (td, MINT_LDIND_R4);
1469                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1470                         break;
1471                 case CEE_LDIND_R8:
1472                         CHECK_STACK (&td, 1);
1473                         SIMPLE_OP (td, MINT_LDIND_R8);
1474                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1475                         break;
1476                 case CEE_LDIND_REF:
1477                         CHECK_STACK (&td, 1);
1478                         SIMPLE_OP (td, MINT_LDIND_REF);
1479                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1480                         break;
1481                 case CEE_STIND_REF:
1482                         CHECK_STACK (&td, 2);
1483                         SIMPLE_OP (td, MINT_STIND_REF);
1484                         td.sp -= 2;
1485                         break;
1486                 case CEE_STIND_I1:
1487                         CHECK_STACK (&td, 2);
1488                         SIMPLE_OP (td, MINT_STIND_I1);
1489                         td.sp -= 2;
1490                         break;
1491                 case CEE_STIND_I2:
1492                         CHECK_STACK (&td, 2);
1493                         SIMPLE_OP (td, MINT_STIND_I2);
1494                         td.sp -= 2;
1495                         break;
1496                 case CEE_STIND_I4:
1497                         CHECK_STACK (&td, 2);
1498                         SIMPLE_OP (td, MINT_STIND_I4);
1499                         td.sp -= 2;
1500                         break;
1501                 case CEE_STIND_I:
1502                         CHECK_STACK (&td, 2);
1503                         SIMPLE_OP (td, MINT_STIND_I);
1504                         td.sp -= 2;
1505                         break;
1506                 case CEE_STIND_I8:
1507                         CHECK_STACK (&td, 2);
1508                         SIMPLE_OP (td, MINT_STIND_I8);
1509                         td.sp -= 2;
1510                         break;
1511                 case CEE_STIND_R4:
1512                         CHECK_STACK (&td, 2);
1513                         SIMPLE_OP (td, MINT_STIND_R4);
1514                         td.sp -= 2;
1515                         break;
1516                 case CEE_STIND_R8:
1517                         CHECK_STACK (&td, 2);
1518                         SIMPLE_OP (td, MINT_STIND_R8);
1519                         td.sp -= 2;
1520                         break;
1521                 case CEE_ADD:
1522                         binary_arith_op(&td, MINT_ADD_I4);
1523                         ++td.ip;
1524                         break;
1525                 case CEE_SUB:
1526                         binary_arith_op(&td, MINT_SUB_I4);
1527                         ++td.ip;
1528                         break;
1529                 case CEE_MUL:
1530                         binary_arith_op(&td, MINT_MUL_I4);
1531                         ++td.ip;
1532                         break;
1533                 case CEE_DIV:
1534                         binary_arith_op(&td, MINT_DIV_I4);
1535                         ++td.ip;
1536                         break;
1537                 case CEE_DIV_UN:
1538                         binary_arith_op(&td, MINT_DIV_UN_I4);
1539                         ++td.ip;
1540                         break;
1541                 case CEE_REM:
1542                         binary_int_op (&td, MINT_REM_I4);
1543                         ++td.ip;
1544                         break;
1545                 case CEE_REM_UN:
1546                         binary_int_op (&td, MINT_REM_UN_I4);
1547                         ++td.ip;
1548                         break;
1549                 case CEE_AND:
1550                         binary_int_op (&td, MINT_AND_I4);
1551                         ++td.ip;
1552                         break;
1553                 case CEE_OR:
1554                         binary_int_op (&td, MINT_OR_I4);
1555                         ++td.ip;
1556                         break;
1557                 case CEE_XOR:
1558                         binary_int_op (&td, MINT_XOR_I4);
1559                         ++td.ip;
1560                         break;
1561                 case CEE_SHL:
1562                         shift_op (&td, MINT_SHL_I4);
1563                         ++td.ip;
1564                         break;
1565                 case CEE_SHR:
1566                         shift_op (&td, MINT_SHR_I4);
1567                         ++td.ip;
1568                         break;
1569                 case CEE_SHR_UN:
1570                         shift_op (&td, MINT_SHR_UN_I4);
1571                         ++td.ip;
1572                         break;
1573                 case CEE_NEG:
1574                         unary_arith_op (&td, MINT_NEG_I4);
1575                         ++td.ip;
1576                         break;
1577                 case CEE_NOT:
1578                         unary_arith_op (&td, MINT_NOT_I4);
1579                         ++td.ip;
1580                         break;
1581                 case CEE_CONV_U1:
1582                         CHECK_STACK (&td, 1);
1583                         switch (td.sp [-1].type) {
1584                         case STACK_TYPE_R8:
1585                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1586                                 break;
1587                         case STACK_TYPE_I4:
1588                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1589                                 break;
1590                         case STACK_TYPE_I8:
1591                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1592                                 break;
1593                         default:
1594                                 g_assert_not_reached ();
1595                         }
1596                         ++td.ip;
1597                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1598                         break;
1599                 case CEE_CONV_I1:
1600                         CHECK_STACK (&td, 1);
1601                         switch (td.sp [-1].type) {
1602                         case STACK_TYPE_R8:
1603                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1604                                 break;
1605                         case STACK_TYPE_I4:
1606                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1607                                 break;
1608                         case STACK_TYPE_I8:
1609                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1610                                 break;
1611                         default:
1612                                 g_assert_not_reached ();
1613                         }
1614                         ++td.ip;
1615                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1616                         break;
1617                 case CEE_CONV_U2:
1618                         CHECK_STACK (&td, 1);
1619                         switch (td.sp [-1].type) {
1620                         case STACK_TYPE_R8:
1621                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1622                                 break;
1623                         case STACK_TYPE_I4:
1624                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1625                                 break;
1626                         case STACK_TYPE_I8:
1627                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1628                                 break;
1629                         default:
1630                                 g_assert_not_reached ();
1631                         }
1632                         ++td.ip;
1633                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1634                         break;
1635                 case CEE_CONV_I2:
1636                         CHECK_STACK (&td, 1);
1637                         switch (td.sp [-1].type) {
1638                         case STACK_TYPE_R8:
1639                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1640                                 break;
1641                         case STACK_TYPE_I4:
1642                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1643                                 break;
1644                         case STACK_TYPE_I8:
1645                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1646                                 break;
1647                         default:
1648                                 g_assert_not_reached ();
1649                         }
1650                         ++td.ip;
1651                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1652                         break;
1653                 case CEE_CONV_U:
1654                         CHECK_STACK (&td, 1);
1655                         switch (td.sp [-1].type) {
1656                         case STACK_TYPE_R8:
1657 #if SIZEOF_VOID_P == 4
1658                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1659 #else
1660                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1661 #endif
1662                                 break;
1663                         case STACK_TYPE_I4:
1664 #if SIZEOF_VOID_P == 8
1665                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1666 #endif
1667                                 break;
1668                         case STACK_TYPE_I8:
1669 #if SIZEOF_VOID_P == 4
1670                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1671 #endif
1672                                 break;
1673                         case STACK_TYPE_MP:
1674                                 break;
1675                         default:
1676                                 g_assert_not_reached ();
1677                         }
1678                         ++td.ip;
1679                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1680                         break;
1681                 case CEE_CONV_I:
1682                         CHECK_STACK (&td, 1);
1683                         switch (td.sp [-1].type) {
1684                         case STACK_TYPE_R8:
1685 #if SIZEOF_VOID_P == 8
1686                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1687 #else
1688                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1689 #endif
1690                                 break;
1691                         case STACK_TYPE_I4:
1692 #if SIZEOF_VOID_P == 8
1693                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1694 #endif
1695                                 break;
1696                         case STACK_TYPE_O:
1697                                 break;
1698                         case STACK_TYPE_MP:
1699                                 break;
1700                         case STACK_TYPE_I8:
1701 #if SIZEOF_VOID_P == 4
1702                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1703 #endif
1704                                 break;
1705                         default:
1706                                 g_assert_not_reached ();
1707                         }
1708                         ++td.ip;
1709                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1710                         break;
1711                 case CEE_CONV_U4:
1712                         CHECK_STACK (&td, 1);
1713                         switch (td.sp [-1].type) {
1714                         case STACK_TYPE_R8:
1715                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1716                                 break;
1717                         case STACK_TYPE_I4:
1718                                 break;
1719                         case STACK_TYPE_I8:
1720                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1721                                 break;
1722                         case STACK_TYPE_MP:
1723 #if SIZEOF_VOID_P == 8
1724                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1725 #endif
1726                                 break;
1727                         default:
1728                                 g_assert_not_reached ();
1729                         }
1730                         ++td.ip;
1731                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1732                         break;
1733                 case CEE_CONV_I4:
1734                         CHECK_STACK (&td, 1);
1735                         switch (td.sp [-1].type) {
1736                         case STACK_TYPE_R8:
1737                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1738                                 break;
1739                         case STACK_TYPE_I4:
1740                                 break;
1741                         case STACK_TYPE_I8:
1742                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1743                                 break;
1744                         case STACK_TYPE_MP:
1745 #if SIZEOF_VOID_P == 8
1746                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1747 #endif
1748                                 break;
1749                         default:
1750                                 g_assert_not_reached ();
1751                         }
1752                         ++td.ip;
1753                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1754                         break;
1755                 case CEE_CONV_I8:
1756                         CHECK_STACK (&td, 1);
1757                         switch (td.sp [-1].type) {
1758                         case STACK_TYPE_R8:
1759                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1760                                 break;
1761                         case STACK_TYPE_I4:
1762                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1763                                 break;
1764                         case STACK_TYPE_I8:
1765                                 break;
1766                         case STACK_TYPE_MP:
1767 #if SIZEOF_VOID_P == 4
1768                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1769 #endif
1770                                 break;
1771                         default:
1772                                 g_assert_not_reached ();
1773                         }
1774                         ++td.ip;
1775                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1776                         break;
1777                 case CEE_CONV_R4:
1778                         CHECK_STACK (&td, 1);
1779                         switch (td.sp [-1].type) {
1780                         case STACK_TYPE_R8:
1781                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1782                                 break;
1783                         case STACK_TYPE_I8:
1784                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1785                                 break;
1786                         case STACK_TYPE_I4:
1787                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1788                                 break;
1789                         default:
1790                                 g_assert_not_reached ();
1791                         }
1792                         ++td.ip;
1793                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1794                         break;
1795                 case CEE_CONV_R8:
1796                         CHECK_STACK (&td, 1);
1797                         switch (td.sp [-1].type) {
1798                         case STACK_TYPE_I4:
1799                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1800                                 break;
1801                         case STACK_TYPE_I8:
1802                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1803                                 break;
1804                         case STACK_TYPE_R8:
1805                                 break;
1806                         default:
1807                                 g_assert_not_reached ();
1808                         }
1809                         ++td.ip;
1810                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1811                         break;
1812                 case CEE_CONV_U8:
1813                         CHECK_STACK (&td, 1);
1814                         switch (td.sp [-1].type) {
1815                         case STACK_TYPE_I4:
1816                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1817                                 break;
1818                         case STACK_TYPE_I8:
1819                                 break;
1820                         case STACK_TYPE_R8:
1821                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1822                                 break;
1823                         case STACK_TYPE_MP:
1824 #if SIZEOF_VOID_P == 4
1825                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1826 #endif
1827                                 break;
1828                         default:
1829                                 g_assert_not_reached ();
1830                         }
1831                         ++td.ip;
1832                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1833                         break;
1834                 case CEE_CPOBJ: {
1835                         CHECK_STACK (&td, 2);
1836
1837                         token = read32 (td.ip + 1);
1838                         klass = mono_class_get_full (image, token, generic_context);
1839
1840                         if (klass->valuetype) {
1841                                 ADD_CODE (&td, MINT_CPOBJ);
1842                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1843                         } else {
1844                                 ADD_CODE (&td, MINT_LDIND_REF);
1845                                 ADD_CODE (&td, MINT_STIND_REF);
1846                         }
1847                         td.ip += 5;
1848                         td.sp -= 2;
1849                         break;
1850                 }
1851                 case CEE_LDOBJ: {
1852                         int size;
1853                         CHECK_STACK (&td, 1);
1854
1855                         token = read32 (td.ip + 1);
1856
1857                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1858                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1859                         else
1860                                 klass = mono_class_get_full (image, token, generic_context);
1861
1862                         ADD_CODE(&td, MINT_LDOBJ);
1863                         ADD_CODE(&td, get_data_item_index(&td, klass));
1864                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1865                                 size = mono_class_value_size (klass, NULL);
1866                                 PUSH_VT(&td, size);
1867                         }
1868                         td.ip += 5;
1869                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1870                         break;
1871                 }
1872                 case CEE_LDSTR: {
1873                         MonoString *s;
1874                         token = mono_metadata_token_index (read32 (td.ip + 1));
1875                         td.ip += 5;
1876                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1877                                 s = mono_string_new_wrapper(
1878                                         mono_method_get_wrapper_data (method, token));
1879                         }
1880                         else
1881                                 s = mono_ldstr (domain, image, token);
1882                         ADD_CODE(&td, MINT_LDSTR);
1883                         ADD_CODE(&td, get_data_item_index (&td, s));
1884                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1885                         break;
1886                 }
1887                 case CEE_NEWOBJ: {
1888                         MonoMethod *m;
1889                         MonoMethodSignature *csignature;
1890                         guint32 vt_stack_used = 0;
1891                         guint32 vt_res_size = 0;
1892
1893                         td.ip++;
1894                         token = read32 (td.ip);
1895                         td.ip += 4;
1896
1897                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1898                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1899                         else
1900                                 m = mono_get_method_full (image, token, NULL, generic_context);
1901
1902                         csignature = mono_method_signature (m);
1903                         klass = m->klass;
1904                         td.sp -= csignature->param_count;
1905                         ADD_CODE(&td, MINT_NEWOBJ);
1906                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1907                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1908
1909                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1910                                 vt_res_size = mono_class_value_size (klass, NULL);
1911                                 PUSH_VT (&td, vt_res_size);
1912                         }
1913                         for (i = 0; i < csignature->param_count; ++i) {
1914                                 int mt = mint_type(csignature->params [i]);
1915                                 if (mt == MINT_TYPE_VT) {
1916                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1917                                         gint32 size = mono_class_value_size (k, NULL);
1918                                         size = (size + 7) & ~7;
1919                                         vt_stack_used += size;
1920                                 }
1921                         }
1922                         if (vt_stack_used != 0 || vt_res_size != 0) {
1923                                 ADD_CODE(&td, MINT_VTRESULT);
1924                                 ADD_CODE(&td, vt_res_size);
1925                                 WRITE32(&td, &vt_stack_used);
1926                                 td.vt_sp -= vt_stack_used;
1927                         }
1928                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1929                         break;
1930                 }
1931                 case CEE_CASTCLASS:
1932                         CHECK_STACK (&td, 1);
1933                         token = read32 (td.ip + 1);
1934                         klass = mono_class_get_full (image, token, generic_context);
1935                         ADD_CODE(&td, MINT_CASTCLASS);
1936                         ADD_CODE(&td, get_data_item_index (&td, klass));
1937                         td.sp [-1].klass = klass;
1938                         td.ip += 5;
1939                         break;
1940                 case CEE_ISINST:
1941                         CHECK_STACK (&td, 1);
1942                         token = read32 (td.ip + 1);
1943                         klass = mono_class_get_full (image, token, generic_context);
1944                         ADD_CODE(&td, MINT_ISINST);
1945                         ADD_CODE(&td, get_data_item_index (&td, klass));
1946                         td.ip += 5;
1947                         break;
1948                 case CEE_CONV_R_UN:
1949                         switch (td.sp [-1].type) {
1950                         case STACK_TYPE_R8:
1951                                 break;
1952                         case STACK_TYPE_I8:
1953                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1954                                 break;
1955                         case STACK_TYPE_I4:
1956                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1957                                 break;
1958                         default:
1959                                 g_assert_not_reached ();
1960                         }
1961                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1962                         ++td.ip;
1963                         break;
1964                 case CEE_UNBOX:
1965                         CHECK_STACK (&td, 1);
1966                         token = read32 (td.ip + 1);
1967
1968                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1969                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1970                         else
1971                                 klass = mono_class_get_full (image, token, generic_context);
1972
1973                         if (mono_class_is_nullable (klass)) {
1974                                 g_error ("cee_unbox: implement Nullable");
1975                         }
1976
1977                         ADD_CODE(&td, MINT_UNBOX);
1978                         ADD_CODE(&td, get_data_item_index (&td, klass));
1979                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1980                         td.ip += 5;
1981                         break;
1982                 case CEE_UNBOX_ANY:
1983                         CHECK_STACK (&td, 1);
1984                         token = read32 (td.ip + 1);
1985
1986                         g_assert (method->wrapper_type == MONO_WRAPPER_NONE);
1987                         klass = mono_class_get_full (image, token, generic_context);
1988
1989                         if (mini_type_is_reference (&klass->byval_arg)) {
1990                                 ADD_CODE (&td, MINT_CASTCLASS);
1991                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1992                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1993                                 td.ip += 5;
1994                         } else if (mono_class_is_nullable (klass)) {
1995                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
1996                                 /* td.ip is incremented by interp_transform_call */
1997                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
1998                         } else {
1999                                 int mt = mint_type (&klass->byval_arg);
2000                                 ADD_CODE (&td, MINT_UNBOX);
2001                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2002
2003                                 ADD_CODE (&td, MINT_LDOBJ);
2004                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2005                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2006
2007                                 if (mt == MINT_TYPE_VT) {
2008                                         int size = mono_class_value_size (klass, NULL);
2009                                         PUSH_VT (&td, size);
2010                                 }
2011                                 td.ip += 5;
2012                         }
2013
2014                         break;
2015                 case CEE_THROW:
2016                         CHECK_STACK (&td, 1);
2017                         SIMPLE_OP (td, MINT_THROW);
2018                         --td.sp;
2019                         generating_code = 0;
2020                         break;
2021                 case CEE_LDFLDA:
2022                         CHECK_STACK (&td, 1);
2023                         token = read32 (td.ip + 1);
2024                         field = mono_field_from_token (image, token, &klass, generic_context);
2025                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2026                         mono_class_init (klass);
2027                         if (is_static) {
2028                                 ADD_CODE (&td, MINT_POP);
2029                                 ADD_CODE (&td, 0);
2030                                 ADD_CODE (&td, MINT_LDSFLDA);
2031                                 ADD_CODE (&td, get_data_item_index (&td, field));
2032                         } else {
2033                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2034                                         ADD_CODE (&td, MINT_LDFLDA);
2035                                 } else {
2036                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2037                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2038                                 }
2039                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2040                         }
2041                         td.ip += 5;
2042                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2043                         break;
2044                 case CEE_LDFLD: {
2045                         CHECK_STACK (&td, 1);
2046                         token = read32 (td.ip + 1);
2047                         field = mono_field_from_token (image, token, &klass, generic_context);
2048                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2049                         mono_class_init (klass);
2050
2051                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2052                         mt = mint_type (&field_klass->byval_arg);
2053                         if (klass->marshalbyref) {
2054                                 g_assert (!is_static);
2055                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2056                                 ADD_CODE(&td, get_data_item_index (&td, field));
2057                         } else  {
2058                                 if (is_static) {
2059                                         ADD_CODE (&td, MINT_POP);
2060                                         ADD_CODE (&td, 0);
2061                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2062                                         ADD_CODE (&td, get_data_item_index (&td, field));
2063                                 } else {
2064                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2065                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2066                                 }
2067                         }
2068                         if (mt == MINT_TYPE_VT) {
2069                                 int size = mono_class_value_size (field_klass, NULL);
2070                                 PUSH_VT(&td, size);
2071                                 WRITE32(&td, &size);
2072                         }
2073                         if (td.sp [-1].type == STACK_TYPE_VT) {
2074                                 int size = mono_class_value_size (klass, NULL);
2075                                 size = (size + 7) & ~7;
2076                                 td.vt_sp -= size;
2077                                 ADD_CODE (&td, MINT_VTRESULT);
2078                                 ADD_CODE (&td, 0);
2079                                 WRITE32 (&td, &size);
2080                         }
2081                         td.ip += 5;
2082                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2083                         break;
2084                 }
2085                 case CEE_STFLD: {
2086                         CHECK_STACK (&td, 2);
2087                         token = read32 (td.ip + 1);
2088                         field = mono_field_from_token (image, token, &klass, generic_context);
2089                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2090                         mono_class_init (klass);
2091                         mt = mint_type(field->type);
2092
2093                         if (klass->marshalbyref) {
2094                                 g_assert (!is_static);
2095                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2096                                 ADD_CODE(&td, get_data_item_index (&td, field));
2097                         } else  {
2098                                 if (is_static) {
2099                                         ADD_CODE (&td, MINT_POP);
2100                                         ADD_CODE (&td, 1);
2101                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2102                                         ADD_CODE (&td, get_data_item_index (&td, field));
2103                                 } else {
2104                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2105                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2106                                 }
2107                         }
2108                         if (mt == MINT_TYPE_VT) {
2109                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2110                                 int size = mono_class_value_size (klass, NULL);
2111                                 POP_VT(&td, size);
2112                                 WRITE32(&td, &size);
2113                         }
2114                         td.ip += 5;
2115                         td.sp -= 2;
2116                         break;
2117                 }
2118                 case CEE_LDSFLDA:
2119                         token = read32 (td.ip + 1);
2120                         field = mono_field_from_token (image, token, &klass, generic_context);
2121                         ADD_CODE(&td, MINT_LDSFLDA);
2122                         ADD_CODE(&td, get_data_item_index (&td, field));
2123                         td.ip += 5;
2124                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2125                         break;
2126                 case CEE_LDSFLD:
2127                         token = read32 (td.ip + 1);
2128                         field = mono_field_from_token (image, token, &klass, generic_context);
2129                         mt = mint_type(field->type);
2130                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2131                         ADD_CODE(&td, get_data_item_index (&td, field));
2132                         klass = NULL;
2133                         if (mt == MINT_TYPE_VT) {
2134                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2135                                 int size = mono_class_value_size (klass, NULL);
2136                                 PUSH_VT(&td, size);
2137                                 WRITE32(&td, &size);
2138                                 klass = field->type->data.klass;
2139                         } else {
2140                                 if (mt == MINT_TYPE_O)
2141                                         klass = mono_class_from_mono_type (field->type);
2142                         }
2143                         td.ip += 5;
2144                         PUSH_TYPE(&td, stack_type [mt], klass);
2145                         break;
2146                 case CEE_STSFLD:
2147                         CHECK_STACK (&td, 1);
2148                         token = read32 (td.ip + 1);
2149                         field = mono_field_from_token (image, token, &klass, generic_context);
2150                         mt = mint_type(field->type);
2151                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2152                         ADD_CODE(&td, get_data_item_index (&td, field));
2153                         if (mt == MINT_TYPE_VT) {
2154                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2155                                 int size = mono_class_value_size (klass, NULL);
2156                                 POP_VT (&td, size);
2157                                 WRITE32 (&td, &size);
2158                         }
2159                         td.ip += 5;
2160                         --td.sp;
2161                         break;
2162                 case CEE_STOBJ: {
2163                         int size;
2164                         token = read32 (td.ip + 1);
2165
2166                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2167                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2168                         else
2169                                 klass = mono_class_get_full (image, token, generic_context);
2170
2171                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2172                         ADD_CODE(&td, get_data_item_index (&td, klass));
2173                         if (td.sp [-1].type == STACK_TYPE_VT) {
2174                                 size = mono_class_value_size (klass, NULL);
2175                                 size = (size + 7) & ~7;
2176                                 td.vt_sp -= size;
2177                         }
2178                         td.ip += 5;
2179                         td.sp -= 2;
2180                         break;
2181                 }
2182                 case CEE_CONV_OVF_I_UN:
2183                 case CEE_CONV_OVF_U_UN:
2184                         CHECK_STACK (&td, 1);
2185                         switch (td.sp [-1].type) {
2186                         case STACK_TYPE_R8:
2187 #if SIZEOF_VOID_P == 8
2188                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2189 #else
2190                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2191 #endif
2192                                 break;
2193                         case STACK_TYPE_I8:
2194 #if SIZEOF_VOID_P == 4
2195                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2196 #endif
2197                                 break;
2198                         case STACK_TYPE_I4:
2199 #if SIZEOF_VOID_P == 8
2200                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2201 #endif
2202                                 break;
2203                         default:
2204                                 g_assert_not_reached ();
2205                                 break;
2206                         }
2207                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2208                         ++td.ip;
2209                         break;
2210                 case CEE_CONV_OVF_I8_UN:
2211                 case CEE_CONV_OVF_U8_UN:
2212                         CHECK_STACK (&td, 1);
2213                         switch (td.sp [-1].type) {
2214                         case STACK_TYPE_R8:
2215                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2216                                 break;
2217                         case STACK_TYPE_I8:
2218                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2219                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2220                                 break;
2221                         case STACK_TYPE_I4:
2222                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2223                                 break;
2224                         default:
2225                                 g_assert_not_reached ();
2226                                 break;
2227                         }
2228                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2229                         ++td.ip;
2230                         break;
2231                 case CEE_BOX: {
2232                         int size;
2233                         CHECK_STACK (&td, 1);
2234                         token = read32 (td.ip + 1);
2235                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2236                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2237                         else
2238                                 klass = mono_class_get_full (image, token, generic_context);
2239
2240                         if (mono_class_is_nullable (klass)) {
2241                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2242                                 /* td.ip is incremented by interp_transform_call */
2243                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2244                         } else if (!klass->valuetype) {
2245                                 /* already boxed, do nothing. */
2246                                 td.ip += 5;
2247                         } else {
2248                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2249                                         size = mono_class_value_size (klass, NULL);
2250                                         size = (size + 7) & ~7;
2251                                         td.vt_sp -= size;
2252                                 }
2253                                 ADD_CODE(&td, MINT_BOX);
2254                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2255                                 ADD_CODE (&td, 0);
2256                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2257                                 td.ip += 5;
2258                         }
2259
2260                         break;
2261                 }
2262                 case CEE_NEWARR: {
2263                         CHECK_STACK (&td, 1);
2264                         token = read32 (td.ip + 1);
2265
2266                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2267                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2268                         else
2269                                 klass = mono_class_get_full (image, token, generic_context);
2270
2271                         unsigned char lentype = (td.sp - 1)->type;
2272                         if (lentype == STACK_TYPE_I8) {
2273                                 /* mimic mini behaviour */
2274                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2275                         } else {
2276                                 g_assert (lentype == STACK_TYPE_I4);
2277                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2278                         }
2279                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2280                         ADD_CODE (&td, MINT_NEWARR);
2281                         ADD_CODE (&td, get_data_item_index (&td, klass));
2282                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2283                         td.ip += 5;
2284                         break;
2285                 }
2286                 case CEE_LDLEN:
2287                         CHECK_STACK (&td, 1);
2288                         SIMPLE_OP (td, MINT_LDLEN);
2289                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2290                         break;
2291                 case CEE_LDELEMA:
2292                         CHECK_STACK (&td, 2);
2293                         ENSURE_I4 (&td, 1);
2294                         token = read32 (td.ip + 1);
2295
2296                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2297                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2298                         else
2299                                 klass = mono_class_get_full (image, token, generic_context);
2300
2301                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2302                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2303                         } else {
2304                                 ADD_CODE (&td, MINT_LDELEMA);
2305                         }
2306                         ADD_CODE (&td, get_data_item_index (&td, klass));
2307                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2308                         ADD_CODE (&td, 2);
2309                         readonly = FALSE;
2310
2311                         td.ip += 5;
2312                         --td.sp;
2313                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2314                         break;
2315                 case CEE_LDELEM_I1:
2316                         CHECK_STACK (&td, 2);
2317                         ENSURE_I4 (&td, 1);
2318                         SIMPLE_OP (td, MINT_LDELEM_I1);
2319                         --td.sp;
2320                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2321                         break;
2322                 case CEE_LDELEM_U1:
2323                         CHECK_STACK (&td, 2);
2324                         ENSURE_I4 (&td, 1);
2325                         SIMPLE_OP (td, MINT_LDELEM_U1);
2326                         --td.sp;
2327                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2328                         break;
2329                 case CEE_LDELEM_I2:
2330                         CHECK_STACK (&td, 2);
2331                         ENSURE_I4 (&td, 1);
2332                         SIMPLE_OP (td, MINT_LDELEM_I2);
2333                         --td.sp;
2334                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2335                         break;
2336                 case CEE_LDELEM_U2:
2337                         CHECK_STACK (&td, 2);
2338                         ENSURE_I4 (&td, 1);
2339                         SIMPLE_OP (td, MINT_LDELEM_U2);
2340                         --td.sp;
2341                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2342                         break;
2343                 case CEE_LDELEM_I4:
2344                         CHECK_STACK (&td, 2);
2345                         ENSURE_I4 (&td, 1);
2346                         SIMPLE_OP (td, MINT_LDELEM_I4);
2347                         --td.sp;
2348                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2349                         break;
2350                 case CEE_LDELEM_U4:
2351                         CHECK_STACK (&td, 2);
2352                         ENSURE_I4 (&td, 1);
2353                         SIMPLE_OP (td, MINT_LDELEM_U4);
2354                         --td.sp;
2355                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2356                         break;
2357                 case CEE_LDELEM_I8:
2358                         CHECK_STACK (&td, 2);
2359                         ENSURE_I4 (&td, 1);
2360                         SIMPLE_OP (td, MINT_LDELEM_I8);
2361                         --td.sp;
2362                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2363                         break;
2364                 case CEE_LDELEM_I:
2365                         CHECK_STACK (&td, 2);
2366                         ENSURE_I4 (&td, 1);
2367                         SIMPLE_OP (td, MINT_LDELEM_I);
2368                         --td.sp;
2369                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2370                         break;
2371                 case CEE_LDELEM_R4:
2372                         CHECK_STACK (&td, 2);
2373                         ENSURE_I4 (&td, 1);
2374                         SIMPLE_OP (td, MINT_LDELEM_R4);
2375                         --td.sp;
2376                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2377                         break;
2378                 case CEE_LDELEM_R8:
2379                         CHECK_STACK (&td, 2);
2380                         ENSURE_I4 (&td, 1);
2381                         SIMPLE_OP (td, MINT_LDELEM_R8);
2382                         --td.sp;
2383                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2384                         break;
2385                 case CEE_LDELEM_REF:
2386                         CHECK_STACK (&td, 2);
2387                         ENSURE_I4 (&td, 1);
2388                         SIMPLE_OP (td, MINT_LDELEM_REF);
2389                         --td.sp;
2390                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2391                         break;
2392                 case CEE_LDELEM:
2393                         CHECK_STACK (&td, 2);
2394                         token = read32 (td.ip + 1);
2395                         klass = mono_class_get_full (image, token, generic_context);
2396                         switch (mint_type (&klass->byval_arg)) {
2397                                 case MINT_TYPE_I1:
2398                                         ENSURE_I4 (&td, 1);
2399                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2400                                         --td.sp;
2401                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2402                                         break;
2403                                 case MINT_TYPE_U1:
2404                                         ENSURE_I4 (&td, 1);
2405                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2406                                         --td.sp;
2407                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2408                                         break;
2409                                 case MINT_TYPE_U2:
2410                                         ENSURE_I4 (&td, 1);
2411                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2412                                         --td.sp;
2413                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2414                                         break;
2415                                 case MINT_TYPE_I2:
2416                                         ENSURE_I4 (&td, 1);
2417                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2418                                         --td.sp;
2419                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2420                                         break;
2421                                 case MINT_TYPE_I4:
2422                                         ENSURE_I4 (&td, 1);
2423                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2424                                         --td.sp;
2425                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2426                                         break;
2427                                 case MINT_TYPE_I8:
2428                                         ENSURE_I4 (&td, 1);
2429                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2430                                         --td.sp;
2431                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2432                                         break;
2433                                 case MINT_TYPE_R4:
2434                                         ENSURE_I4 (&td, 1);
2435                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2436                                         --td.sp;
2437                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2438                                         break;
2439                                 case MINT_TYPE_R8:
2440                                         ENSURE_I4 (&td, 1);
2441                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2442                                         --td.sp;
2443                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2444                                         break;
2445                                 case MINT_TYPE_O:
2446                                         ENSURE_I4 (&td, 1);
2447                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2448                                         --td.sp;
2449                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2450                                         break;
2451                                 case MINT_TYPE_VT: {
2452                                         int size = mono_class_value_size (klass, NULL);
2453                                         ENSURE_I4 (&td, 1);
2454                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2455                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2456                                         WRITE32 (&td, &size);
2457                                         --td.sp;
2458                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2459                                         PUSH_VT (&td, size);
2460                                         break;
2461                                 }
2462                                 default: {
2463                                         GString *res = g_string_new ("");
2464                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2465                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2466                                         g_string_free (res, TRUE);
2467                                         g_assert (0);
2468                                         break;
2469                                 }
2470                         }
2471                         td.ip += 4;
2472                         break;
2473                 case CEE_STELEM_I:
2474                         CHECK_STACK (&td, 3);
2475                         ENSURE_I4 (&td, 2);
2476                         SIMPLE_OP (td, MINT_STELEM_I);
2477                         td.sp -= 3;
2478                         break;
2479                 case CEE_STELEM_I1:
2480                         CHECK_STACK (&td, 3);
2481                         ENSURE_I4 (&td, 2);
2482                         SIMPLE_OP (td, MINT_STELEM_I1);
2483                         td.sp -= 3;
2484                         break;
2485                 case CEE_STELEM_I2:
2486                         CHECK_STACK (&td, 3);
2487                         ENSURE_I4 (&td, 2);
2488                         SIMPLE_OP (td, MINT_STELEM_I2);
2489                         td.sp -= 3;
2490                         break;
2491                 case CEE_STELEM_I4:
2492                         CHECK_STACK (&td, 3);
2493                         ENSURE_I4 (&td, 2);
2494                         SIMPLE_OP (td, MINT_STELEM_I4);
2495                         td.sp -= 3;
2496                         break;
2497                 case CEE_STELEM_I8:
2498                         CHECK_STACK (&td, 3);
2499                         ENSURE_I4 (&td, 2);
2500                         SIMPLE_OP (td, MINT_STELEM_I8);
2501                         td.sp -= 3;
2502                         break;
2503                 case CEE_STELEM_R4:
2504                         CHECK_STACK (&td, 3);
2505                         ENSURE_I4 (&td, 2);
2506                         SIMPLE_OP (td, MINT_STELEM_R4);
2507                         td.sp -= 3;
2508                         break;
2509                 case CEE_STELEM_R8:
2510                         CHECK_STACK (&td, 3);
2511                         ENSURE_I4 (&td, 2);
2512                         SIMPLE_OP (td, MINT_STELEM_R8);
2513                         td.sp -= 3;
2514                         break;
2515                 case CEE_STELEM_REF:
2516                         CHECK_STACK (&td, 3);
2517                         ENSURE_I4 (&td, 2);
2518                         SIMPLE_OP (td, MINT_STELEM_REF);
2519                         td.sp -= 3;
2520                         break;
2521                 case CEE_STELEM:
2522                         CHECK_STACK (&td, 3);
2523                         ENSURE_I4 (&td, 2);
2524                         token = read32 (td.ip + 1);
2525                         klass = mono_class_get_full (image, token, generic_context);
2526                         switch (mint_type (&klass->byval_arg)) {
2527                                 case MINT_TYPE_U1:
2528                                         SIMPLE_OP (td, MINT_STELEM_U1);
2529                                         break;
2530                                 case MINT_TYPE_I4:
2531                                         SIMPLE_OP (td, MINT_STELEM_I4);
2532                                         break;
2533                                 case MINT_TYPE_I8:
2534                                         SIMPLE_OP (td, MINT_STELEM_I8);
2535                                         break;
2536                                 case MINT_TYPE_O:
2537                                         SIMPLE_OP (td, MINT_STELEM_REF);
2538                                         break;
2539                                 case MINT_TYPE_VT: {
2540                                         int size = mono_class_value_size (klass, NULL);
2541                                         SIMPLE_OP (td, MINT_STELEM_VT);
2542                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2543                                         WRITE32 (&td, &size);
2544                                         POP_VT (&td, size);
2545                                         break;
2546                                 }
2547                                 default: {
2548                                         GString *res = g_string_new ("");
2549                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2550                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2551                                         g_string_free (res, TRUE);
2552                                         g_assert (0);
2553                                         break;
2554                                 }
2555                         }
2556                         td.ip += 4;
2557                         td.sp -= 3;
2558                         break;
2559 #if 0
2560                 case CEE_CONV_OVF_U1:
2561
2562                 case CEE_CONV_OVF_I8:
2563
2564 #if SIZEOF_VOID_P == 8
2565                 case CEE_CONV_OVF_U:
2566 #endif
2567                 case CEE_REFANYVAL: ves_abort(); break;
2568 #endif
2569                 case CEE_CKFINITE:
2570                         CHECK_STACK (&td, 1);
2571                         SIMPLE_OP (td, MINT_CKFINITE);
2572                         break;
2573                 case CEE_CONV_OVF_I1:
2574                 case CEE_CONV_OVF_I1_UN:
2575                         CHECK_STACK (&td, 1);
2576                         switch (td.sp [-1].type) {
2577                         case STACK_TYPE_R8:
2578                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2579                                 break;
2580                         case STACK_TYPE_I4:
2581                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2582                                 break;
2583                         case STACK_TYPE_I8:
2584                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2585                                 break;
2586                         default:
2587                                 g_assert_not_reached ();
2588                         }
2589                         ++td.ip;
2590                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2591                         break;
2592                 case CEE_CONV_OVF_U1:
2593                 case CEE_CONV_OVF_U1_UN:
2594                         CHECK_STACK (&td, 1);
2595                         switch (td.sp [-1].type) {
2596                         case STACK_TYPE_R8:
2597                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2598                                 break;
2599                         case STACK_TYPE_I4:
2600                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2601                                 break;
2602                         case STACK_TYPE_I8:
2603                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2604                                 break;
2605                         default:
2606                                 g_assert_not_reached ();
2607                         }
2608                         ++td.ip;
2609                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2610                         break;
2611                 case CEE_CONV_OVF_I2:
2612                 case CEE_CONV_OVF_I2_UN:
2613                         CHECK_STACK (&td, 1);
2614                         switch (td.sp [-1].type) {
2615                         case STACK_TYPE_R8:
2616                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2617                                 break;
2618                         case STACK_TYPE_I4:
2619                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2620                                 break;
2621                         case STACK_TYPE_I8:
2622                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2623                                 break;
2624                         default:
2625                                 g_assert_not_reached ();
2626                         }
2627                         ++td.ip;
2628                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2629                         break;
2630                 case CEE_CONV_OVF_U2_UN:
2631                 case CEE_CONV_OVF_U2:
2632                         CHECK_STACK (&td, 1);
2633                         switch (td.sp [-1].type) {
2634                         case STACK_TYPE_R8:
2635                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2636                                 break;
2637                         case STACK_TYPE_I4:
2638                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2639                                 break;
2640                         case STACK_TYPE_I8:
2641                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2642                                 break;
2643                         default:
2644                                 g_assert_not_reached ();
2645                         }
2646                         ++td.ip;
2647                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2648                         break;
2649 #if SIZEOF_VOID_P == 4
2650                 case CEE_CONV_OVF_I:
2651 #endif
2652                 case CEE_CONV_OVF_I4:
2653                 case CEE_CONV_OVF_I4_UN:
2654                         CHECK_STACK (&td, 1);
2655                         switch (td.sp [-1].type) {
2656                         case STACK_TYPE_R8:
2657                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2658                                 break;
2659                         case STACK_TYPE_I4:
2660                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2661                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2662                                 break;
2663                         case STACK_TYPE_I8:
2664                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2665                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2666                                 else
2667                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2668                                 break;
2669                         default:
2670                                 g_assert_not_reached ();
2671                         }
2672                         ++td.ip;
2673                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2674                         break;
2675 #if SIZEOF_VOID_P == 4
2676                 case CEE_CONV_OVF_U:
2677 #endif
2678                 case CEE_CONV_OVF_U4:
2679                 case CEE_CONV_OVF_U4_UN:
2680                         CHECK_STACK (&td, 1);
2681                         switch (td.sp [-1].type) {
2682                         case STACK_TYPE_R8:
2683                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2684                                 break;
2685                         case STACK_TYPE_I4:
2686                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2687                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2688                                 break;
2689                         case STACK_TYPE_I8:
2690                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2691                                 break;
2692                         default:
2693                                 g_assert_not_reached ();
2694                         }
2695                         ++td.ip;
2696                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2697                         break;
2698 #if SIZEOF_VOID_P == 8
2699                 case CEE_CONV_OVF_I:
2700 #endif
2701                 case CEE_CONV_OVF_I8:
2702                         CHECK_STACK (&td, 1);
2703                         switch (td.sp [-1].type) {
2704                         case STACK_TYPE_R8:
2705                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2706                                 break;
2707                         case STACK_TYPE_I4:
2708                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2709                                 break;
2710                         case STACK_TYPE_I8:
2711                                 break;
2712                         default:
2713                                 g_assert_not_reached ();
2714                         }
2715                         ++td.ip;
2716                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2717                         break;
2718 #if SIZEOF_VOID_P == 8
2719                 case CEE_CONV_OVF_U:
2720 #endif
2721                 case CEE_CONV_OVF_U8:
2722                         CHECK_STACK (&td, 1);
2723                         switch (td.sp [-1].type) {
2724                         case STACK_TYPE_R8:
2725                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2726                                 break;
2727                         case STACK_TYPE_I4:
2728                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2729                                 break;
2730                         case STACK_TYPE_I8:
2731                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2732                                 break;
2733                         default:
2734                                 g_assert_not_reached ();
2735                         }
2736                         ++td.ip;
2737                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2738                         break;
2739                 case CEE_LDTOKEN: {
2740                         int size;
2741                         gpointer handle;
2742                         token = read32 (td.ip + 1);
2743                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2744                                 handle = mono_method_get_wrapper_data (method, token);
2745                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2746                                 if (klass == mono_defaults.typehandle_class)
2747                                         handle = &((MonoClass *) handle)->byval_arg;
2748
2749                                 if (generic_context) {
2750                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
2751                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2752                                 }
2753                         } else {
2754                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2755                         }
2756                         mono_class_init (klass);
2757                         mt = mint_type (&klass->byval_arg);
2758                         g_assert (mt == MINT_TYPE_VT);
2759                         size = mono_class_value_size (klass, NULL);
2760                         g_assert (size == sizeof(gpointer));
2761                         PUSH_VT (&td, sizeof(gpointer));
2762                         ADD_CODE (&td, MINT_LDTOKEN);
2763                         ADD_CODE (&td, get_data_item_index (&td, handle));
2764
2765                         SET_TYPE (td.sp, stack_type [mt], klass);
2766                         td.sp++;
2767                         td.ip += 5;
2768                         break;
2769                 }
2770                 case CEE_ADD_OVF:
2771                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2772                         ++td.ip;
2773                         break;
2774                 case CEE_ADD_OVF_UN:
2775                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2776                         ++td.ip;
2777                         break;
2778                 case CEE_MUL_OVF:
2779                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2780                         ++td.ip;
2781                         break;
2782                 case CEE_MUL_OVF_UN:
2783                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2784                         ++td.ip;
2785                         break;
2786                 case CEE_SUB_OVF:
2787                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2788                         ++td.ip;
2789                         break;
2790                 case CEE_SUB_OVF_UN:
2791                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2792                         ++td.ip;
2793                         break;
2794                 case CEE_ENDFINALLY:
2795                         td.sp = td.stack;
2796                         SIMPLE_OP (td, MINT_ENDFINALLY);
2797                         generating_code = 0;
2798                         break;
2799                 case CEE_LEAVE:
2800                         td.sp = td.stack;
2801                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2802                         td.ip += 5;
2803                         generating_code = 0;
2804                         break;
2805                 case CEE_LEAVE_S:
2806                         td.sp = td.stack;
2807                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2808                         td.ip += 2;
2809                         generating_code = 0;
2810                         break;
2811                 case CEE_UNUSED41:
2812                         ++td.ip;
2813                         switch (*td.ip) {
2814                                 case CEE_MONO_CALLI_EXTRA_ARG:
2815                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2816                                         ADD_CODE (&td, MINT_POP);
2817                                         ADD_CODE (&td, 1);
2818                                         --td.sp;
2819                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2820                                         break;
2821                                 case CEE_MONO_JIT_ICALL_ADDR: {
2822                                         guint32 token;
2823                                         gpointer func;
2824                                         MonoJitICallInfo *info;
2825
2826                                         token = read32 (td.ip + 1);
2827                                         td.ip += 5;
2828                                         func = mono_method_get_wrapper_data (method, token);
2829                                         info = mono_find_jit_icall_by_addr (func);
2830
2831                                         ADD_CODE (&td, MINT_LDFTN);
2832                                         ADD_CODE (&td, get_data_item_index (&td, func));
2833                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2834                                         break;
2835                                 }
2836                                 case CEE_MONO_ICALL: {
2837                                         guint32 token;
2838                                         gpointer func;
2839                                         MonoJitICallInfo *info;
2840
2841                                         token = read32 (td.ip + 1);
2842                                         td.ip += 5;
2843                                         func = mono_method_get_wrapper_data (method, token);
2844                                         info = mono_find_jit_icall_by_addr (func);
2845                                         g_assert (info);
2846
2847                                         CHECK_STACK (&td, info->sig->param_count);
2848                                         switch (info->sig->param_count) {
2849                                         case 0:
2850                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2851                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2852                                                 else
2853                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2854                                                 break;
2855                                         case 1:
2856                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2857                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2858                                                 else
2859                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2860                                                 break;
2861                                         case 2:
2862                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2863                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2864                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2865                                                         else
2866                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2867                                                 } else {
2868                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2869                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2870                                                         else
2871                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2872                                                 }
2873                                                 break;
2874                                         case 3:
2875                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2876                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2877                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2878                                                 else
2879                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2880                                                 break;
2881                                         default:
2882                                                 g_assert_not_reached ();
2883                                         }
2884
2885                                         if (func == mono_ftnptr_to_delegate) {
2886                                                 g_error ("TODO: ?");
2887                                         }
2888                                         ADD_CODE(&td, get_data_item_index (&td, func));
2889                                         td.sp -= info->sig->param_count;
2890
2891                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2892                                                 td.sp ++;
2893                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2894                                         }
2895                                         break;
2896                                 }
2897                         case CEE_MONO_VTADDR: {
2898                                 int size;
2899                                 CHECK_STACK (&td, 1);
2900                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2901                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2902                                 else
2903                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2904                                 size = (size + 7) & ~7;
2905                                 ADD_CODE(&td, MINT_VTRESULT);
2906                                 ADD_CODE(&td, 0);
2907                                 WRITE32(&td, &size);
2908                                 td.vt_sp -= size;
2909                                 ++td.ip;
2910                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2911                                 break;
2912                         }
2913                         case CEE_MONO_LDPTR:
2914                         case CEE_MONO_CLASSCONST:
2915                                 token = read32 (td.ip + 1);
2916                                 td.ip += 5;
2917                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2918                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2919                                 td.sp [0].type = STACK_TYPE_I;
2920                                 ++td.sp;
2921                                 break;
2922                         case CEE_MONO_OBJADDR:
2923                                 CHECK_STACK (&td, 1);
2924                                 ++td.ip;
2925                                 td.sp[-1].type = STACK_TYPE_MP;
2926                                 /* do nothing? */
2927                                 break;
2928                         case CEE_MONO_NEWOBJ:
2929                                 token = read32 (td.ip + 1);
2930                                 td.ip += 5;
2931                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2932                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2933                                 td.sp [0].type = STACK_TYPE_O;
2934                                 ++td.sp;
2935                                 break;
2936                         case CEE_MONO_RETOBJ:
2937                                 CHECK_STACK (&td, 1);
2938                                 token = read32 (td.ip + 1);
2939                                 td.ip += 5;
2940                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2941                                 td.sp--;
2942
2943                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2944
2945                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2946
2947                                 if (td.sp > td.stack)
2948                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2949                                 break;
2950                         case CEE_MONO_LDNATIVEOBJ:
2951                                 token = read32 (td.ip + 1);
2952                                 td.ip += 5;
2953                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2954                                 g_assert(klass->valuetype);
2955                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2956                                 break;
2957                         case CEE_MONO_SAVE_LMF:
2958                         case CEE_MONO_RESTORE_LMF:
2959                         case CEE_MONO_NOT_TAKEN:
2960                                 ++td.ip;
2961                                 break;
2962                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
2963                                 ADD_CODE (&td, MINT_MONO_LDPTR);
2964                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
2965                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
2966                                 ++td.ip;
2967                                 break;
2968                         default:
2969                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2970                         }
2971                         break;
2972 #if 0
2973                 case CEE_PREFIX7:
2974                 case CEE_PREFIX6:
2975                 case CEE_PREFIX5:
2976                 case CEE_PREFIX4:
2977                 case CEE_PREFIX3:
2978                 case CEE_PREFIX2:
2979                 case CEE_PREFIXREF: ves_abort(); break;
2980 #endif
2981                 /*
2982                  * Note: Exceptions thrown when executing a prefixed opcode need
2983                  * to take into account the number of prefix bytes (usually the
2984                  * throw point is just (ip - n_prefix_bytes).
2985                  */
2986                 case CEE_PREFIX1:
2987                         ++td.ip;
2988                         switch (*td.ip) {
2989 #if 0
2990                         case CEE_ARGLIST: ves_abort(); break;
2991 #endif
2992                         case CEE_CEQ:
2993                                 CHECK_STACK(&td, 2);
2994                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2995                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2996                                 else
2997                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
2998                                 --td.sp;
2999                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3000                                 ++td.ip;
3001                                 break;
3002                         case CEE_CGT:
3003                                 CHECK_STACK(&td, 2);
3004                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3005                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3006                                 else
3007                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3008                                 --td.sp;
3009                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3010                                 ++td.ip;
3011                                 break;
3012                         case CEE_CGT_UN:
3013                                 CHECK_STACK(&td, 2);
3014                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3015                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3016                                 else
3017                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3018                                 --td.sp;
3019                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3020                                 ++td.ip;
3021                                 break;
3022                         case CEE_CLT:
3023                                 CHECK_STACK(&td, 2);
3024                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3025                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3026                                 else
3027                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3028                                 --td.sp;
3029                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3030                                 ++td.ip;
3031                                 break;
3032                         case CEE_CLT_UN:
3033                                 CHECK_STACK(&td, 2);
3034                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3035                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3036                                 else
3037                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3038                                 --td.sp;
3039                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3040                                 ++td.ip;
3041                                 break;
3042                         case CEE_LDVIRTFTN: /* fallthrough */
3043                         case CEE_LDFTN: {
3044                                 MonoMethod *m;
3045                                 if (*td.ip == CEE_LDVIRTFTN) {
3046                                         CHECK_STACK (&td, 1);
3047                                         --td.sp;
3048                                 }
3049                                 token = read32 (td.ip + 1);
3050                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3051                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3052                                 else
3053                                         m = mono_get_method_full (image, token, NULL, generic_context);
3054
3055                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3056                                         m = mono_marshal_get_synchronized_wrapper (m);
3057
3058                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3059                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3060                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3061                                 td.ip += 5;
3062                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3063                                 break;
3064                         }
3065                         case CEE_LDARG:
3066                                 load_arg (&td, read16 (td.ip + 1));
3067                                 td.ip += 3;
3068                                 break;
3069                         case CEE_LDARGA: {
3070                                 int n = read16 (td.ip + 1);
3071                                 ADD_CODE (&td, MINT_LDARGA);
3072                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3073                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3074                                 td.ip += 3;
3075                                 break;
3076                         }
3077                         case CEE_STARG:
3078                                 store_arg (&td, read16 (td.ip + 1));
3079                                 td.ip += 3;
3080                                 break;
3081                         case CEE_LDLOC:
3082                                 load_local (&td, read16 (td.ip + 1));
3083                                 td.ip += 3;
3084                                 break;
3085                         case CEE_LDLOCA:
3086                                 ADD_CODE(&td, MINT_LDLOCA_S);
3087                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3088                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3089                                 td.ip += 3;
3090                                 break;
3091                         case CEE_STLOC:
3092                                 store_local (&td, read16 (td.ip + 1));
3093                                 td.ip += 3;
3094                                 break;
3095                         case CEE_LOCALLOC:
3096                                 CHECK_STACK (&td, 1);
3097 #if SIZEOF_VOID_P == 8
3098                                 if (td.sp [-1].type == STACK_TYPE_I8)
3099                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3100 #endif
3101                                 ADD_CODE(&td, MINT_LOCALLOC);
3102                                 if (td.sp != td.stack + 1)
3103                                         g_warning("CEE_LOCALLOC: stack not empty");
3104                                 ++td.ip;
3105                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3106                                 break;
3107 #if 0
3108                         case CEE_UNUSED57: ves_abort(); break;
3109                         case CEE_ENDFILTER: ves_abort(); break;
3110 #endif
3111                         case CEE_UNALIGNED_:
3112                                 ++td.ip;
3113                                 /* FIX: should do something? */;
3114                                 break;
3115                         case CEE_VOLATILE_:
3116                                 ++td.ip;
3117                                 /* FIX: should do something? */;
3118                                 break;
3119                         case CEE_TAIL_:
3120                                 ++td.ip;
3121                                 /* FIX: should do something? */;
3122                                 break;
3123                         case CEE_INITOBJ:
3124                                 CHECK_STACK(&td, 1);
3125                                 token = read32 (td.ip + 1);
3126                                 klass = mono_class_get_full (image, token, generic_context);
3127                                 if (klass->valuetype) {
3128                                         ADD_CODE (&td, MINT_INITOBJ);
3129                                         i32 = mono_class_value_size (klass, NULL);
3130                                         WRITE32 (&td, &i32);
3131                                 } else {
3132                                         ADD_CODE (&td, MINT_LDNULL);
3133                                         ADD_CODE (&td, MINT_STIND_REF);
3134                                 }
3135                                 td.ip += 5;
3136                                 --td.sp;
3137                                 break;
3138                         case CEE_CPBLK:
3139                                 CHECK_STACK(&td, 3);
3140                                 /* FIX? convert length to I8? */
3141                                 ADD_CODE(&td, MINT_CPBLK);
3142                                 td.sp -= 3;
3143                                 ++td.ip;
3144                                 break;
3145                         case CEE_READONLY_:
3146                                 readonly = TRUE;
3147                                 td.ip += 1;
3148                                 break;
3149                         case CEE_CONSTRAINED_:
3150                                 token = read32 (td.ip + 1);
3151                                 constrained_class = mono_class_get_full (image, token, generic_context);
3152                                 mono_class_init (constrained_class);
3153                                 td.ip += 5;
3154                                 break;
3155                         case CEE_INITBLK:
3156                                 CHECK_STACK(&td, 3);
3157                                 ADD_CODE(&td, MINT_INITBLK);
3158                                 td.sp -= 3;
3159                                 td.ip += 1;
3160                                 break;
3161 #if 0
3162                         case CEE_NO_:
3163                                 /* FIXME: implement */
3164                                 ip += 2;
3165                                 break;
3166 #endif
3167                         case CEE_RETHROW:
3168                                 SIMPLE_OP (td, MINT_RETHROW);
3169                                 generating_code = 0;
3170                                 break;
3171                         case CEE_SIZEOF: {
3172                                 gint32 size;
3173                                 token = read32 (td.ip + 1);
3174                                 td.ip += 5;
3175                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3176                                         int align;
3177                                         MonoType *type = mono_type_create_from_typespec (image, token);
3178                                         size = mono_type_size (type, &align);
3179                                 } else {
3180                                         int align;
3181                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
3182                                         mono_class_init (szclass);
3183 #if 0
3184                                         if (!szclass->valuetype)
3185                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3186 #endif
3187                                         size = mono_type_size (&szclass->byval_arg, &align);
3188                                 }
3189                                 ADD_CODE(&td, MINT_LDC_I4);
3190                                 WRITE32(&td, &size);
3191                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3192                                 break;
3193                         }
3194 #if 0
3195                         case CEE_REFANYTYPE: ves_abort(); break;
3196 #endif
3197                         default:
3198                                 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);
3199                         }
3200                         break;
3201                 default:
3202                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3203                 }
3204
3205                 if (td.new_ip - td.new_code != new_in_start_offset)
3206                         td.last_new_ip = td.new_code + new_in_start_offset;
3207                 else if (td.is_bb_start [td.in_start - td.il_code])
3208                         td.is_bb_start [td.ip - td.il_code] = 1;
3209
3210                 td.last_ip = td.in_start;
3211         }
3212
3213         if (mono_interp_traceopt) {
3214                 const guint16 *p = td.new_code;
3215                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3216                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3217                 while (p < td.new_ip) {
3218                         p = mono_interp_dis_mintop(td.new_code, p);
3219                         printf("\n");
3220                 }
3221         }
3222         g_assert (td.max_stack_height <= (header->max_stack + 1));
3223
3224         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3225         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3226         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3227         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3228         g_free (td.new_code);
3229         rtm->new_body_start = rtm->code + body_start_offset;
3230         rtm->num_clauses = header->num_clauses;
3231         for (i = 0; i < header->num_clauses; i++) {
3232                 MonoExceptionClause *c = rtm->clauses + i;
3233                 int end_off = c->try_offset + c->try_len;
3234                 c->try_offset = td.in_offsets [c->try_offset];
3235                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3236                 end_off = c->handler_offset + c->handler_len;
3237                 c->handler_offset = td.in_offsets [c->handler_offset];
3238                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3239         }
3240         rtm->vt_stack_size = td.max_vt_sp;
3241         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3242         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3243         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3244         g_free (td.in_offsets);
3245         g_free (td.forward_refs);
3246         for (i = 0; i < header->code_size; ++i)
3247                 g_free (td.stack_state [i]);
3248         g_free (td.stack_state);
3249         g_free (td.stack_height);
3250         g_free (td.vt_stack_size);
3251         g_free (td.data_items);
3252         g_free (td.stack);
3253         g_hash_table_destroy (td.data_hash);
3254 }
3255
3256 static mono_mutex_t calc_section;
3257
3258 void
3259 mono_interp_transform_init (void)
3260 {
3261         mono_os_mutex_init_recursive(&calc_section);
3262 }
3263
3264 MonoException *
3265 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3266 {
3267         int i, align, size, offset;
3268         MonoMethod *method = runtime_method->method;
3269         MonoImage *image = method->klass->image;
3270         MonoMethodHeader *header = mono_method_get_header (method);
3271         MonoMethodSignature *signature = mono_method_signature (method);
3272         register const unsigned char *ip, *end;
3273         const MonoOpcode *opcode;
3274         MonoMethod *m;
3275         MonoClass *class;
3276         MonoDomain *domain = mono_domain_get ();
3277         unsigned char *is_bb_start;
3278         int in;
3279         MonoVTable *method_class_vt;
3280         int backwards;
3281         MonoGenericContext *generic_context = NULL;
3282
3283         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3284         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3285         if (!method_class_vt->initialized) {
3286                 MonoError error;
3287                 jmp_buf env;
3288                 MonoInvocation *last_env_frame = context->env_frame;
3289                 jmp_buf *old_env = context->current_env;
3290                 error_init (&error);
3291
3292                 if (setjmp(env)) {
3293                         MonoException *failed = context->env_frame->ex;
3294                         context->env_frame->ex = NULL;
3295                         context->env_frame = last_env_frame;
3296                         context->current_env = old_env;
3297                         return failed;
3298                 }
3299                 context->env_frame = context->current_frame;
3300                 context->current_env = &env;
3301                 mono_runtime_class_init_full (method_class_vt, &error);
3302                 if (!mono_error_ok (&error)) {
3303                         return mono_error_convert_to_exception (&error);
3304                 }
3305                 context->env_frame = last_env_frame;
3306                 context->current_env = old_env;
3307         }
3308
3309         mono_profiler_method_jit (method); /* sort of... */
3310
3311         if (mono_method_signature (method)->is_inflated)
3312                 generic_context = mono_method_get_context (method);
3313         else {
3314                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3315                 if (generic_container)
3316                         generic_context = &generic_container->context;
3317         }
3318
3319         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3320                 MonoMethod *nm = NULL;
3321                 mono_os_mutex_lock(&calc_section);
3322                 if (runtime_method->transformed) {
3323                         mono_os_mutex_unlock(&calc_section);
3324                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3325                         return NULL;
3326                 }
3327
3328                 /* assumes all internal calls with an array this are built in... */
3329                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3330                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3331                         signature = mono_method_signature (nm);
3332                 } else {
3333                         const char *name = method->name;
3334                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3335                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3336                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3337                                         g_assert (mi);
3338                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3339                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3340                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3341                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3342                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3343                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3344                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3345                                         nm = mono_marshal_get_delegate_end_invoke (method);
3346                                 }
3347                         }
3348                         if (nm == NULL) {
3349                                 runtime_method->code = g_malloc(sizeof(short));
3350                                 runtime_method->code[0] = MINT_CALLRUN;
3351                         }
3352                 }
3353                 if (nm == NULL) {
3354                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3355                         runtime_method->alloca_size = runtime_method->stack_size;
3356                         runtime_method->transformed = TRUE;
3357                         mono_os_mutex_unlock(&calc_section);
3358                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3359                         return NULL;
3360                 }
3361                 method = nm;
3362                 header = mono_method_get_header (nm);
3363                 mono_os_mutex_unlock(&calc_section);
3364         } else if (method->klass == mono_defaults.array_class) {
3365                 if (!strcmp (method->name, "UnsafeMov")) {
3366                         mono_os_mutex_lock (&calc_section);
3367                         if (!runtime_method->transformed) {
3368                                 runtime_method->code = g_malloc (sizeof (short));
3369                                 runtime_method->code[0] = MINT_CALLRUN;
3370                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
3371                                 runtime_method->alloca_size = runtime_method->stack_size;
3372                                 runtime_method->transformed = TRUE;
3373                         }
3374                         mono_os_mutex_unlock(&calc_section);
3375                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3376                         return NULL;
3377                 } else if (!strcmp (method->name, "UnsafeStore)")) {
3378                         g_error ("TODO");
3379                 } else if (!strcmp (method->name, "UnsafeLoad)")) {
3380                         g_error ("TODO");
3381                 }
3382         }
3383         g_assert ((signature->param_count + signature->hasthis) < 1000);
3384         g_assert (header->max_stack < 10000);
3385         /* intern the strings in the method. */
3386         ip = header->code;
3387         end = ip + header->code_size;
3388
3389         is_bb_start = g_malloc0(header->code_size);
3390         is_bb_start [0] = 1;
3391         while (ip < end) {
3392                 in = *ip;
3393                 if (in == 0xfe) {
3394                         ip++;
3395                         in = *ip + 256;
3396                 }
3397                 else if (in == 0xf0) {
3398                         ip++;
3399                         in = *ip + MONO_CEE_MONO_ICALL;
3400                 }
3401                 opcode = &mono_opcodes [in];
3402                 switch (opcode->argument) {
3403                 case MonoInlineNone:
3404                         ++ip;
3405                         break;
3406                 case MonoInlineString:
3407                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3408                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3409                         ip += 5;
3410                         break;
3411                 case MonoInlineType:
3412                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3413                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
3414                                 mono_class_init (class);
3415                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3416 #if 0
3417                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3418                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3419                                         mono_class_vtable (domain, class);
3420 #endif
3421                         }
3422                         ip += 5;
3423                         break;
3424                 case MonoInlineMethod:
3425                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3426                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3427                                 if (m == NULL) {
3428                                         g_free (is_bb_start);
3429                                         g_error ("FIXME: where to get method and class string?");
3430                                         return NULL;
3431                                         // return mono_get_exception_missing_method ();
3432                                 }
3433                                 mono_class_init (m->klass);
3434                                 if (!mono_class_is_interface (m->klass))
3435                                         mono_class_vtable (domain, m->klass);
3436                         }
3437                         ip += 5;
3438                         break;
3439                 case MonoInlineField:
3440                 case MonoInlineSig:
3441                 case MonoInlineI:
3442                 case MonoInlineTok:
3443                 case MonoShortInlineR:
3444                         ip += 5;
3445                         break;
3446                 case MonoInlineBrTarget:
3447                         offset = read32 (ip + 1);
3448                         ip += 5;
3449                         backwards = offset < 0;
3450                         offset += ip - header->code;
3451                         g_assert (offset >= 0 && offset < header->code_size);
3452                         is_bb_start [offset] |= backwards ? 2 : 1;
3453                         break;
3454                 case MonoShortInlineBrTarget:
3455                         offset = ((gint8 *)ip) [1];
3456                         ip += 2;
3457                         backwards = offset < 0;
3458                         offset += ip - header->code;
3459                         g_assert (offset >= 0 && offset < header->code_size);
3460                         is_bb_start [offset] |= backwards ? 2 : 1;
3461                         break;
3462                 case MonoInlineVar:
3463                         ip += 3;
3464                         break;
3465                 case MonoShortInlineVar:
3466                 case MonoShortInlineI:
3467                         ip += 2;
3468                         break;
3469                 case MonoInlineSwitch: {
3470                         guint32 n;
3471                         const unsigned char *next_ip;
3472                         ++ip;
3473                         n = read32 (ip);
3474                         ip += 4;
3475                         next_ip = ip + 4 * n;
3476                         for (i = 0; i < n; i++) {
3477                                 offset = read32 (ip);
3478                                 backwards = offset < 0;
3479                                 offset += next_ip - header->code;
3480                                 g_assert (offset >= 0 && offset < header->code_size);
3481                                 is_bb_start [offset] |= backwards ? 2 : 1;
3482                                 ip += 4;
3483                         }
3484                         break;
3485                 }
3486                 case MonoInlineR:
3487                 case MonoInlineI8:
3488                         ip += 9;
3489                         break;
3490                 default:
3491                         g_assert_not_reached ();
3492                 }
3493         }
3494         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3495
3496         /* the rest needs to be locked so it is only done once */
3497         mono_os_mutex_lock(&calc_section);
3498         if (runtime_method->transformed) {
3499                 mono_os_mutex_unlock(&calc_section);
3500                 g_free (is_bb_start);
3501                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3502                 return NULL;
3503         }
3504
3505         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3506         runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3507         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3508         offset = 0;
3509         for (i = 0; i < header->num_locals; ++i) {
3510                 size = mono_type_size (header->locals [i], &align);
3511                 offset += align - 1;
3512                 offset &= ~(align - 1);
3513                 runtime_method->local_offsets [i] = offset;
3514                 offset += size;
3515         }
3516         offset = (offset + 7) & ~7;
3517         runtime_method->locals_size = offset;
3518         g_assert (runtime_method->locals_size < 65536);
3519         offset = 0;
3520         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3521
3522         if (signature->hasthis) {
3523                 g_assert (!signature->pinvoke);
3524                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3525                 offset += align - 1;
3526                 offset &= ~(align - 1);
3527                 runtime_method->arg_offsets [0] = offset;
3528                 offset += size;
3529         }
3530
3531         for (i = 0; i < signature->param_count; ++i) {
3532                 if (signature->pinvoke) {
3533                         guint32 dummy;
3534                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3535                         align = 8;
3536                 }
3537                 else
3538                         size = mono_type_stack_size (signature->params [i], &align);
3539                 offset += align - 1;
3540                 offset &= ~(align - 1);
3541                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3542                 offset += size;
3543         }
3544         offset = (offset + 7) & ~7;
3545         runtime_method->args_size = offset;
3546         g_assert (runtime_method->args_size < 10000);
3547
3548         generate (method, runtime_method, is_bb_start, generic_context);
3549
3550         g_free (is_bb_start);
3551
3552         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3553         runtime_method->transformed = TRUE;
3554         mono_os_mutex_unlock(&calc_section);
3555
3556         return NULL;
3557 }
3558