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                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
 982                         td.stack_height [c->data.filter_offset] = 0;
 983                         td.vt_stack_size [c->data.filter_offset] = 0;
 984                         td.is_bb_start [c->data.filter_offset] = 1;
 985
 986                         td.stack_height [c->data.filter_offset] = 1;
 987                         td.stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
 988                         td.stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
 989                         td.stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
 990                 }
 991         }
 992
 993         td.ip = header->code;
 994         end = td.ip + header->code_size;
 995
 996         if (mono_interp_traceopt) {
 997                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 998                 char *name = mono_method_full_name (method, TRUE);
 999                 g_print ("Method %s, original code:\n", name);
1000                 g_print ("%s\n", tmp);
1001                 g_free (tmp);
1002                 g_free (name);
1003         }
1004
1005         if (signature->hasthis)
1006                 store_inarg (&td, 0);
1007         for (i = 0; i < signature->param_count; i++)
1008                 store_inarg (&td, i + !!signature->hasthis);
1009
1010         body_start_offset = td.new_ip - td.new_code;
1011
1012         for (i = 0; i < header->num_locals; i++) {
1013                 int mt = mint_type(header->locals [i]);
1014                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1015                         ADD_CODE(&td, MINT_INITLOCALS);
1016                         break;
1017                 }
1018         }
1019
1020         while (td.ip < end) {
1021                 int in_offset;
1022
1023                 g_assert (td.sp >= td.stack);
1024                 g_assert (td.vt_sp < 0x10000000);
1025                 in_offset = td.ip - header->code;
1026                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
1027                 new_in_start_offset = td.new_ip - td.new_code;
1028                 td.in_start = td.ip;
1029                 while (td.forward_refs [in_offset] >= 0) {
1030                         int j = td.forward_refs [in_offset];
1031                         int slot;
1032                         td.forward_refs [in_offset] = td.forward_refs [j];
1033                         if (td.in_offsets [j] < 0) {
1034                                 int old_switch_offset = -td.in_offsets [j];
1035                                 int new_switch_offset = td.in_offsets [old_switch_offset];
1036                                 int switch_case = (j - old_switch_offset - 5) / 4;
1037                                 int n_cases = read32 (header->code + old_switch_offset + 1);
1038                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
1039                                 slot = new_switch_offset + 3 + 2 * switch_case;
1040                                 td.new_code [slot] = * (unsigned short *)(&offset);
1041                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1042                         } else {
1043                                 int op = td.new_code [td.in_offsets [j]];
1044                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1045                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1046                                         g_assert (offset <= 32767);
1047                                         slot = td.in_offsets [j] + 1;
1048                                         td.new_code [slot] = offset;
1049                                 } else {
1050                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1051                                         slot = td.in_offsets [j] + 1;
1052                                         td.new_code [slot] = * (unsigned short *)(&offset);
1053                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1054                                 }
1055                         }
1056                 }
1057                 if (td.stack_height [in_offset] >= 0) {
1058                         g_assert (is_bb_start [in_offset]);
1059                         if (td.stack_height [in_offset] > 0)
1060                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1061                         td.sp = td.stack + td.stack_height [in_offset];
1062                         td.vt_sp = td.vt_stack_size [in_offset];
1063                 }
1064                 if (is_bb_start [in_offset]) {
1065                         generating_code = 1;
1066                 }
1067                 if (!generating_code) {
1068                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1069                                 ++td.ip;
1070                         continue;
1071                 }
1072                 if (mono_interp_traceopt > 1) {
1073                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1074                                 td.ip - td.il_code,
1075                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1076                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1077                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1078                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1079                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1080                                 (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) : "",
1081                                 td.vt_sp, td.max_vt_sp);
1082                 }
1083                 switch (*td.ip) {
1084                 case CEE_NOP:
1085                         /* lose it */
1086                         ++td.ip;
1087                         break;
1088                 case CEE_BREAK:
1089                         SIMPLE_OP(td, MINT_BREAK);
1090                         break;
1091                 case CEE_LDARG_0:
1092                 case CEE_LDARG_1:
1093                 case CEE_LDARG_2:
1094                 case CEE_LDARG_3:
1095                         load_arg (&td, *td.ip - CEE_LDARG_0);
1096                         ++td.ip;
1097                         break;
1098                 case CEE_LDLOC_0:
1099                 case CEE_LDLOC_1:
1100                 case CEE_LDLOC_2:
1101                 case CEE_LDLOC_3:
1102                         load_local (&td, *td.ip - CEE_LDLOC_0);
1103                         ++td.ip;
1104                         break;
1105                 case CEE_STLOC_0:
1106                 case CEE_STLOC_1:
1107                 case CEE_STLOC_2:
1108                 case CEE_STLOC_3:
1109                         store_local (&td, *td.ip - CEE_STLOC_0);
1110                         ++td.ip;
1111                         break;
1112                 case CEE_LDARG_S:
1113                         load_arg (&td, ((guint8 *)td.ip)[1]);
1114                         td.ip += 2;
1115                         break;
1116                 case CEE_LDARGA_S: {
1117                         /* NOTE: n includes this */
1118                         int n = ((guint8 *) td.ip) [1];
1119                         ADD_CODE (&td, MINT_LDARGA);
1120                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1121                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1122                         td.ip += 2;
1123                         break;
1124                 }
1125                 case CEE_STARG_S:
1126                         store_arg (&td, ((guint8 *)td.ip)[1]);
1127                         td.ip += 2;
1128                         break;
1129                 case CEE_LDLOC_S:
1130                         load_local (&td, ((guint8 *)td.ip)[1]);
1131                         td.ip += 2;
1132                         break;
1133                 case CEE_LDLOCA_S:
1134                         ADD_CODE(&td, MINT_LDLOCA_S);
1135                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1136                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1137                         td.ip += 2;
1138                         break;
1139                 case CEE_STLOC_S:
1140                         store_local (&td, ((guint8 *)td.ip)[1]);
1141                         td.ip += 2;
1142                         break;
1143                 case CEE_LDNULL:
1144                         SIMPLE_OP(td, MINT_LDNULL);
1145                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1146                         break;
1147                 case CEE_LDC_I4_M1:
1148                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1149                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1150                         break;
1151                 case CEE_LDC_I4_0:
1152                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1153                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1154                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1155                                 td.ip += 2;
1156                         } else {
1157                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1158                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1159                         }
1160                         break;
1161                 case CEE_LDC_I4_1:
1162                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1163                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1164                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1165                                 td.ip += 2;
1166                         } else {
1167                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1168                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1169                         }
1170                         break;
1171                 case CEE_LDC_I4_2:
1172                 case CEE_LDC_I4_3:
1173                 case CEE_LDC_I4_4:
1174                 case CEE_LDC_I4_5:
1175                 case CEE_LDC_I4_6:
1176                 case CEE_LDC_I4_7:
1177                 case CEE_LDC_I4_8:
1178                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1179                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1180                         break;
1181                 case CEE_LDC_I4_S:
1182                         ADD_CODE(&td, MINT_LDC_I4_S);
1183                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1184                         td.ip += 2;
1185                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1186                         break;
1187                 case CEE_LDC_I4:
1188                         i32 = read32 (td.ip + 1);
1189                         ADD_CODE(&td, MINT_LDC_I4);
1190                         WRITE32(&td, &i32);
1191                         td.ip += 5;
1192                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1193                         break;
1194                 case CEE_LDC_I8: {
1195                         gint64 val = read64 (td.ip + 1);
1196                         ADD_CODE(&td, MINT_LDC_I8);
1197                         WRITE64(&td, &val);
1198                         td.ip += 9;
1199                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1200                         break;
1201                 }
1202                 case CEE_LDC_R4: {
1203                         float val;
1204                         readr4 (td.ip + 1, &val);
1205                         ADD_CODE(&td, MINT_LDC_R4);
1206                         WRITE32(&td, &val);
1207                         td.ip += 5;
1208                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1209                         break;
1210                 }
1211                 case CEE_LDC_R8: {
1212                         double val;
1213                         readr8 (td.ip + 1, &val);
1214                         ADD_CODE(&td, MINT_LDC_R8);
1215                         WRITE64(&td, &val);
1216                         td.ip += 9;
1217                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1218                         break;
1219                 }
1220                 case CEE_DUP: {
1221                         int type = td.sp [-1].type;
1222                         MonoClass *klass = td.sp [-1].klass;
1223                         if (td.sp [-1].type == STACK_TYPE_VT) {
1224                                 gint32 size = mono_class_value_size (klass, NULL);
1225                                 PUSH_VT(&td, size);
1226                                 ADD_CODE(&td, MINT_DUP_VT);
1227                                 WRITE32(&td, &size);
1228                                 td.ip ++;
1229                         } else
1230                                 SIMPLE_OP(td, MINT_DUP);
1231                         PUSH_TYPE(&td, type, klass);
1232                         break;
1233                 }
1234                 case CEE_POP:
1235                         CHECK_STACK(&td, 1);
1236                         SIMPLE_OP(td, MINT_POP);
1237                         ADD_CODE (&td, 0);
1238                         if (td.sp [-1].type == STACK_TYPE_VT) {
1239                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1240                                 size = (size + 7) & ~7;
1241                                 ADD_CODE(&td, MINT_VTRESULT);
1242                                 ADD_CODE(&td, 0);
1243                                 WRITE32(&td, &size);
1244                                 td.vt_sp -= size;
1245                         }
1246                         --td.sp;
1247                         break;
1248                 case CEE_JMP: {
1249                         MonoMethod *m;
1250                         if (td.sp > td.stack)
1251                                 g_warning ("CEE_JMP: stack must be empty");
1252                         token = read32 (td.ip + 1);
1253                         m = mono_get_method_full (image, token, NULL, generic_context);
1254                         ADD_CODE (&td, MINT_JMP);
1255                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1256                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1257                         td.ip += 5;
1258                         break;
1259                 }
1260                 case CEE_CALLVIRT: /* Fall through */
1261                 case CEE_CALLI:    /* Fall through */
1262                 case CEE_CALL: {
1263                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1264                         constrained_class = NULL;
1265                         readonly = FALSE;
1266                         break;
1267                 }
1268                 case CEE_RET: {
1269                         int vt_size = 0;
1270                         if (signature->ret->type != MONO_TYPE_VOID) {
1271                                 --td.sp;
1272                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1273                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1274                                         vt_size = mono_class_value_size (klass, NULL);
1275                                         vt_size = (vt_size + 7) & ~7;
1276                                 }
1277                         }
1278                         if (td.sp > td.stack)
1279                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1280                         if (td.vt_sp != vt_size)
1281                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1282                         if (vt_size == 0)
1283                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1284                         else {
1285                                 ADD_CODE(&td, MINT_RET_VT);
1286                                 WRITE32(&td, &vt_size);
1287                                 ++td.ip;
1288                         }
1289                         generating_code = 0;
1290                         break;
1291                 }
1292                 case CEE_BR:
1293                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1294                         td.ip += 5;
1295                         generating_code = 0;
1296                         break;
1297                 case CEE_BR_S:
1298                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1299                         td.ip += 2;
1300                         generating_code = 0;
1301                         break;
1302                 case CEE_BRFALSE:
1303                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1304                         td.ip += 5;
1305                         break;
1306                 case CEE_BRFALSE_S:
1307                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1308                         td.ip += 2;
1309                         break;
1310                 case CEE_BRTRUE:
1311                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1312                         td.ip += 5;
1313                         break;
1314                 case CEE_BRTRUE_S:
1315                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1316                         td.ip += 2;
1317                         break;
1318                 case CEE_BEQ:
1319                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1320                         td.ip += 5;
1321                         break;
1322                 case CEE_BEQ_S:
1323                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1324                         td.ip += 2;
1325                         break;
1326                 case CEE_BGE:
1327                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1328                         td.ip += 5;
1329                         break;
1330                 case CEE_BGE_S:
1331                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1332                         td.ip += 2;
1333                         break;
1334                 case CEE_BGT:
1335                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1336                         td.ip += 5;
1337                         break;
1338                 case CEE_BGT_S:
1339                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1340                         td.ip += 2;
1341                         break;
1342                 case CEE_BLT:
1343                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1344                         td.ip += 5;
1345                         break;
1346                 case CEE_BLT_S:
1347                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1348                         td.ip += 2;
1349                         break;
1350                 case CEE_BLE:
1351                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1352                         td.ip += 5;
1353                         break;
1354                 case CEE_BLE_S:
1355                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1356                         td.ip += 2;
1357                         break;
1358                 case CEE_BNE_UN:
1359                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1360                         td.ip += 5;
1361                         break;
1362                 case CEE_BNE_UN_S:
1363                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1364                         td.ip += 2;
1365                         break;
1366                 case CEE_BGE_UN:
1367                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1368                         td.ip += 5;
1369                         break;
1370                 case CEE_BGE_UN_S:
1371                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1372                         td.ip += 2;
1373                         break;
1374                 case CEE_BGT_UN:
1375                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1376                         td.ip += 5;
1377                         break;
1378                 case CEE_BGT_UN_S:
1379                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1380                         td.ip += 2;
1381                         break;
1382                 case CEE_BLE_UN:
1383                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1384                         td.ip += 5;
1385                         break;
1386                 case CEE_BLE_UN_S:
1387                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1388                         td.ip += 2;
1389                         break;
1390                 case CEE_BLT_UN:
1391                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1392                         td.ip += 5;
1393                         break;
1394                 case CEE_BLT_UN_S:
1395                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1396                         td.ip += 2;
1397                         break;
1398                 case CEE_SWITCH: {
1399                         guint32 n;
1400                         const unsigned char *next_ip;
1401                         const unsigned char *base_ip = td.ip;
1402                         unsigned short *next_new_ip;
1403                         ++td.ip;
1404                         n = read32 (td.ip);
1405                         ADD_CODE (&td, MINT_SWITCH);
1406                         WRITE32 (&td, &n);
1407                         td.ip += 4;
1408                         next_ip = td.ip + n * 4;
1409                         next_new_ip = td.new_ip + n * 2;
1410                         --td.sp;
1411                         int stack_height = td.sp - td.stack;
1412                         for (i = 0; i < n; i++) {
1413                                 offset = read32 (td.ip);
1414                                 target = next_ip - td.il_code + offset;
1415                                 if (offset < 0) {
1416 #if DEBUG_INTERP
1417                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1418                                                 g_warning ("SWITCH with back branch and non-empty stack");
1419 #endif
1420                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1421                                 } else {
1422                                         td.stack_height [target] = stack_height;
1423                                         td.vt_stack_size [target] = td.vt_sp;
1424                                         if (stack_height > 0)
1425                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1426                                         int prev = td.forward_refs [target];
1427                                         td.forward_refs [td.ip - td.il_code] = prev;
1428                                         td.forward_refs [target] = td.ip - td.il_code;
1429                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1430                                 }
1431                                 WRITE32 (&td, &target);
1432                                 td.ip += 4;
1433                         }
1434                         break;
1435                 }
1436                 case CEE_LDIND_I1:
1437                         CHECK_STACK (&td, 1);
1438                         SIMPLE_OP (td, MINT_LDIND_I1);
1439                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1440                         break;
1441                 case CEE_LDIND_U1:
1442                         CHECK_STACK (&td, 1);
1443                         SIMPLE_OP (td, MINT_LDIND_U1);
1444                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1445                         break;
1446                 case CEE_LDIND_I2:
1447                         CHECK_STACK (&td, 1);
1448                         SIMPLE_OP (td, MINT_LDIND_I2);
1449                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1450                         break;
1451                 case CEE_LDIND_U2:
1452                         CHECK_STACK (&td, 1);
1453                         SIMPLE_OP (td, MINT_LDIND_U2);
1454                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1455                         break;
1456                 case CEE_LDIND_I4:
1457                         CHECK_STACK (&td, 1);
1458                         SIMPLE_OP (td, MINT_LDIND_I4);
1459                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1460                         break;
1461                 case CEE_LDIND_U4:
1462                         CHECK_STACK (&td, 1);
1463                         SIMPLE_OP (td, MINT_LDIND_U4);
1464                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1465                         break;
1466                 case CEE_LDIND_I8:
1467                         CHECK_STACK (&td, 1);
1468                         SIMPLE_OP (td, MINT_LDIND_I8);
1469                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1470                         break;
1471                 case CEE_LDIND_I:
1472                         CHECK_STACK (&td, 1);
1473                         SIMPLE_OP (td, MINT_LDIND_I);
1474                         ADD_CODE (&td, 0);
1475                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1476                         break;
1477                 case CEE_LDIND_R4:
1478                         CHECK_STACK (&td, 1);
1479                         SIMPLE_OP (td, MINT_LDIND_R4);
1480                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1481                         break;
1482                 case CEE_LDIND_R8:
1483                         CHECK_STACK (&td, 1);
1484                         SIMPLE_OP (td, MINT_LDIND_R8);
1485                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1486                         break;
1487                 case CEE_LDIND_REF:
1488                         CHECK_STACK (&td, 1);
1489                         SIMPLE_OP (td, MINT_LDIND_REF);
1490                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1491                         break;
1492                 case CEE_STIND_REF:
1493                         CHECK_STACK (&td, 2);
1494                         SIMPLE_OP (td, MINT_STIND_REF);
1495                         td.sp -= 2;
1496                         break;
1497                 case CEE_STIND_I1:
1498                         CHECK_STACK (&td, 2);
1499                         SIMPLE_OP (td, MINT_STIND_I1);
1500                         td.sp -= 2;
1501                         break;
1502                 case CEE_STIND_I2:
1503                         CHECK_STACK (&td, 2);
1504                         SIMPLE_OP (td, MINT_STIND_I2);
1505                         td.sp -= 2;
1506                         break;
1507                 case CEE_STIND_I4:
1508                         CHECK_STACK (&td, 2);
1509                         SIMPLE_OP (td, MINT_STIND_I4);
1510                         td.sp -= 2;
1511                         break;
1512                 case CEE_STIND_I:
1513                         CHECK_STACK (&td, 2);
1514                         SIMPLE_OP (td, MINT_STIND_I);
1515                         td.sp -= 2;
1516                         break;
1517                 case CEE_STIND_I8:
1518                         CHECK_STACK (&td, 2);
1519                         SIMPLE_OP (td, MINT_STIND_I8);
1520                         td.sp -= 2;
1521                         break;
1522                 case CEE_STIND_R4:
1523                         CHECK_STACK (&td, 2);
1524                         SIMPLE_OP (td, MINT_STIND_R4);
1525                         td.sp -= 2;
1526                         break;
1527                 case CEE_STIND_R8:
1528                         CHECK_STACK (&td, 2);
1529                         SIMPLE_OP (td, MINT_STIND_R8);
1530                         td.sp -= 2;
1531                         break;
1532                 case CEE_ADD:
1533                         binary_arith_op(&td, MINT_ADD_I4);
1534                         ++td.ip;
1535                         break;
1536                 case CEE_SUB:
1537                         binary_arith_op(&td, MINT_SUB_I4);
1538                         ++td.ip;
1539                         break;
1540                 case CEE_MUL:
1541                         binary_arith_op(&td, MINT_MUL_I4);
1542                         ++td.ip;
1543                         break;
1544                 case CEE_DIV:
1545                         binary_arith_op(&td, MINT_DIV_I4);
1546                         ++td.ip;
1547                         break;
1548                 case CEE_DIV_UN:
1549                         binary_arith_op(&td, MINT_DIV_UN_I4);
1550                         ++td.ip;
1551                         break;
1552                 case CEE_REM:
1553                         binary_int_op (&td, MINT_REM_I4);
1554                         ++td.ip;
1555                         break;
1556                 case CEE_REM_UN:
1557                         binary_int_op (&td, MINT_REM_UN_I4);
1558                         ++td.ip;
1559                         break;
1560                 case CEE_AND:
1561                         binary_int_op (&td, MINT_AND_I4);
1562                         ++td.ip;
1563                         break;
1564                 case CEE_OR:
1565                         binary_int_op (&td, MINT_OR_I4);
1566                         ++td.ip;
1567                         break;
1568                 case CEE_XOR:
1569                         binary_int_op (&td, MINT_XOR_I4);
1570                         ++td.ip;
1571                         break;
1572                 case CEE_SHL:
1573                         shift_op (&td, MINT_SHL_I4);
1574                         ++td.ip;
1575                         break;
1576                 case CEE_SHR:
1577                         shift_op (&td, MINT_SHR_I4);
1578                         ++td.ip;
1579                         break;
1580                 case CEE_SHR_UN:
1581                         shift_op (&td, MINT_SHR_UN_I4);
1582                         ++td.ip;
1583                         break;
1584                 case CEE_NEG:
1585                         unary_arith_op (&td, MINT_NEG_I4);
1586                         ++td.ip;
1587                         break;
1588                 case CEE_NOT:
1589                         unary_arith_op (&td, MINT_NOT_I4);
1590                         ++td.ip;
1591                         break;
1592                 case CEE_CONV_U1:
1593                         CHECK_STACK (&td, 1);
1594                         switch (td.sp [-1].type) {
1595                         case STACK_TYPE_R8:
1596                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1597                                 break;
1598                         case STACK_TYPE_I4:
1599                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1600                                 break;
1601                         case STACK_TYPE_I8:
1602                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1603                                 break;
1604                         default:
1605                                 g_assert_not_reached ();
1606                         }
1607                         ++td.ip;
1608                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1609                         break;
1610                 case CEE_CONV_I1:
1611                         CHECK_STACK (&td, 1);
1612                         switch (td.sp [-1].type) {
1613                         case STACK_TYPE_R8:
1614                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1615                                 break;
1616                         case STACK_TYPE_I4:
1617                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1618                                 break;
1619                         case STACK_TYPE_I8:
1620                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1621                                 break;
1622                         default:
1623                                 g_assert_not_reached ();
1624                         }
1625                         ++td.ip;
1626                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1627                         break;
1628                 case CEE_CONV_U2:
1629                         CHECK_STACK (&td, 1);
1630                         switch (td.sp [-1].type) {
1631                         case STACK_TYPE_R8:
1632                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1633                                 break;
1634                         case STACK_TYPE_I4:
1635                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1636                                 break;
1637                         case STACK_TYPE_I8:
1638                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1639                                 break;
1640                         default:
1641                                 g_assert_not_reached ();
1642                         }
1643                         ++td.ip;
1644                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1645                         break;
1646                 case CEE_CONV_I2:
1647                         CHECK_STACK (&td, 1);
1648                         switch (td.sp [-1].type) {
1649                         case STACK_TYPE_R8:
1650                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1651                                 break;
1652                         case STACK_TYPE_I4:
1653                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1654                                 break;
1655                         case STACK_TYPE_I8:
1656                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1657                                 break;
1658                         default:
1659                                 g_assert_not_reached ();
1660                         }
1661                         ++td.ip;
1662                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1663                         break;
1664                 case CEE_CONV_U:
1665                         CHECK_STACK (&td, 1);
1666                         switch (td.sp [-1].type) {
1667                         case STACK_TYPE_R8:
1668 #if SIZEOF_VOID_P == 4
1669                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1670 #else
1671                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1672 #endif
1673                                 break;
1674                         case STACK_TYPE_I4:
1675 #if SIZEOF_VOID_P == 8
1676                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1677 #endif
1678                                 break;
1679                         case STACK_TYPE_I8:
1680 #if SIZEOF_VOID_P == 4
1681                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1682 #endif
1683                                 break;
1684                         case STACK_TYPE_MP:
1685                                 break;
1686                         default:
1687                                 g_assert_not_reached ();
1688                         }
1689                         ++td.ip;
1690                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1691                         break;
1692                 case CEE_CONV_I:
1693                         CHECK_STACK (&td, 1);
1694                         switch (td.sp [-1].type) {
1695                         case STACK_TYPE_R8:
1696 #if SIZEOF_VOID_P == 8
1697                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1698 #else
1699                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1700 #endif
1701                                 break;
1702                         case STACK_TYPE_I4:
1703 #if SIZEOF_VOID_P == 8
1704                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1705 #endif
1706                                 break;
1707                         case STACK_TYPE_O:
1708                                 break;
1709                         case STACK_TYPE_MP:
1710                                 break;
1711                         case STACK_TYPE_I8:
1712 #if SIZEOF_VOID_P == 4
1713                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1714 #endif
1715                                 break;
1716                         default:
1717                                 g_assert_not_reached ();
1718                         }
1719                         ++td.ip;
1720                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1721                         break;
1722                 case CEE_CONV_U4:
1723                         CHECK_STACK (&td, 1);
1724                         switch (td.sp [-1].type) {
1725                         case STACK_TYPE_R8:
1726                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1727                                 break;
1728                         case STACK_TYPE_I4:
1729                                 break;
1730                         case STACK_TYPE_I8:
1731                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1732                                 break;
1733                         case STACK_TYPE_MP:
1734 #if SIZEOF_VOID_P == 8
1735                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1736 #endif
1737                                 break;
1738                         default:
1739                                 g_assert_not_reached ();
1740                         }
1741                         ++td.ip;
1742                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1743                         break;
1744                 case CEE_CONV_I4:
1745                         CHECK_STACK (&td, 1);
1746                         switch (td.sp [-1].type) {
1747                         case STACK_TYPE_R8:
1748                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1749                                 break;
1750                         case STACK_TYPE_I4:
1751                                 break;
1752                         case STACK_TYPE_I8:
1753                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1754                                 break;
1755                         case STACK_TYPE_MP:
1756 #if SIZEOF_VOID_P == 8
1757                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1758 #endif
1759                                 break;
1760                         default:
1761                                 g_assert_not_reached ();
1762                         }
1763                         ++td.ip;
1764                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1765                         break;
1766                 case CEE_CONV_I8:
1767                         CHECK_STACK (&td, 1);
1768                         switch (td.sp [-1].type) {
1769                         case STACK_TYPE_R8:
1770                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1771                                 break;
1772                         case STACK_TYPE_I4:
1773                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1774                                 break;
1775                         case STACK_TYPE_I8:
1776                                 break;
1777                         case STACK_TYPE_MP:
1778 #if SIZEOF_VOID_P == 4
1779                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1780 #endif
1781                                 break;
1782                         default:
1783                                 g_assert_not_reached ();
1784                         }
1785                         ++td.ip;
1786                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1787                         break;
1788                 case CEE_CONV_R4:
1789                         CHECK_STACK (&td, 1);
1790                         switch (td.sp [-1].type) {
1791                         case STACK_TYPE_R8:
1792                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1793                                 break;
1794                         case STACK_TYPE_I8:
1795                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1796                                 break;
1797                         case STACK_TYPE_I4:
1798                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1799                                 break;
1800                         default:
1801                                 g_assert_not_reached ();
1802                         }
1803                         ++td.ip;
1804                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1805                         break;
1806                 case CEE_CONV_R8:
1807                         CHECK_STACK (&td, 1);
1808                         switch (td.sp [-1].type) {
1809                         case STACK_TYPE_I4:
1810                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1811                                 break;
1812                         case STACK_TYPE_I8:
1813                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1814                                 break;
1815                         case STACK_TYPE_R8:
1816                                 break;
1817                         default:
1818                                 g_assert_not_reached ();
1819                         }
1820                         ++td.ip;
1821                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1822                         break;
1823                 case CEE_CONV_U8:
1824                         CHECK_STACK (&td, 1);
1825                         switch (td.sp [-1].type) {
1826                         case STACK_TYPE_I4:
1827                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1828                                 break;
1829                         case STACK_TYPE_I8:
1830                                 break;
1831                         case STACK_TYPE_R8:
1832                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1833                                 break;
1834                         case STACK_TYPE_MP:
1835 #if SIZEOF_VOID_P == 4
1836                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1837 #endif
1838                                 break;
1839                         default:
1840                                 g_assert_not_reached ();
1841                         }
1842                         ++td.ip;
1843                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1844                         break;
1845                 case CEE_CPOBJ: {
1846                         CHECK_STACK (&td, 2);
1847
1848                         token = read32 (td.ip + 1);
1849                         klass = mono_class_get_full (image, token, generic_context);
1850
1851                         if (klass->valuetype) {
1852                                 ADD_CODE (&td, MINT_CPOBJ);
1853                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1854                         } else {
1855                                 ADD_CODE (&td, MINT_LDIND_REF);
1856                                 ADD_CODE (&td, MINT_STIND_REF);
1857                         }
1858                         td.ip += 5;
1859                         td.sp -= 2;
1860                         break;
1861                 }
1862                 case CEE_LDOBJ: {
1863                         int size;
1864                         CHECK_STACK (&td, 1);
1865
1866                         token = read32 (td.ip + 1);
1867
1868                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1869                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1870                         else
1871                                 klass = mono_class_get_full (image, token, generic_context);
1872
1873                         ADD_CODE(&td, MINT_LDOBJ);
1874                         ADD_CODE(&td, get_data_item_index(&td, klass));
1875                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1876                                 size = mono_class_value_size (klass, NULL);
1877                                 PUSH_VT(&td, size);
1878                         }
1879                         td.ip += 5;
1880                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1881                         break;
1882                 }
1883                 case CEE_LDSTR: {
1884                         MonoString *s;
1885                         token = mono_metadata_token_index (read32 (td.ip + 1));
1886                         td.ip += 5;
1887                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1888                                 s = mono_string_new_wrapper(
1889                                         mono_method_get_wrapper_data (method, token));
1890                         }
1891                         else
1892                                 s = mono_ldstr (domain, image, token);
1893                         ADD_CODE(&td, MINT_LDSTR);
1894                         ADD_CODE(&td, get_data_item_index (&td, s));
1895                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1896                         break;
1897                 }
1898                 case CEE_NEWOBJ: {
1899                         MonoMethod *m;
1900                         MonoMethodSignature *csignature;
1901                         guint32 vt_stack_used = 0;
1902                         guint32 vt_res_size = 0;
1903
1904                         td.ip++;
1905                         token = read32 (td.ip);
1906                         td.ip += 4;
1907
1908                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1909                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1910                         else
1911                                 m = mono_get_method_full (image, token, NULL, generic_context);
1912
1913                         csignature = mono_method_signature (m);
1914                         klass = m->klass;
1915                         td.sp -= csignature->param_count;
1916                         ADD_CODE(&td, MINT_NEWOBJ);
1917                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1918                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1919
1920                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1921                                 vt_res_size = mono_class_value_size (klass, NULL);
1922                                 PUSH_VT (&td, vt_res_size);
1923                         }
1924                         for (i = 0; i < csignature->param_count; ++i) {
1925                                 int mt = mint_type(csignature->params [i]);
1926                                 if (mt == MINT_TYPE_VT) {
1927                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1928                                         gint32 size = mono_class_value_size (k, NULL);
1929                                         size = (size + 7) & ~7;
1930                                         vt_stack_used += size;
1931                                 }
1932                         }
1933                         if (vt_stack_used != 0 || vt_res_size != 0) {
1934                                 ADD_CODE(&td, MINT_VTRESULT);
1935                                 ADD_CODE(&td, vt_res_size);
1936                                 WRITE32(&td, &vt_stack_used);
1937                                 td.vt_sp -= vt_stack_used;
1938                         }
1939                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1940                         break;
1941                 }
1942                 case CEE_CASTCLASS:
1943                         CHECK_STACK (&td, 1);
1944                         token = read32 (td.ip + 1);
1945                         klass = mono_class_get_full (image, token, generic_context);
1946                         ADD_CODE(&td, MINT_CASTCLASS);
1947                         ADD_CODE(&td, get_data_item_index (&td, klass));
1948                         td.sp [-1].klass = klass;
1949                         td.ip += 5;
1950                         break;
1951                 case CEE_ISINST:
1952                         CHECK_STACK (&td, 1);
1953                         token = read32 (td.ip + 1);
1954                         klass = mono_class_get_full (image, token, generic_context);
1955                         ADD_CODE(&td, MINT_ISINST);
1956                         ADD_CODE(&td, get_data_item_index (&td, klass));
1957                         td.ip += 5;
1958                         break;
1959                 case CEE_CONV_R_UN:
1960                         switch (td.sp [-1].type) {
1961                         case STACK_TYPE_R8:
1962                                 break;
1963                         case STACK_TYPE_I8:
1964                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1965                                 break;
1966                         case STACK_TYPE_I4:
1967                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1968                                 break;
1969                         default:
1970                                 g_assert_not_reached ();
1971                         }
1972                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1973                         ++td.ip;
1974                         break;
1975                 case CEE_UNBOX:
1976                         CHECK_STACK (&td, 1);
1977                         token = read32 (td.ip + 1);
1978
1979                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1980                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1981                         else
1982                                 klass = mono_class_get_full (image, token, generic_context);
1983
1984                         if (mono_class_is_nullable (klass)) {
1985                                 g_error ("cee_unbox: implement Nullable");
1986                         }
1987
1988                         ADD_CODE(&td, MINT_UNBOX);
1989                         ADD_CODE(&td, get_data_item_index (&td, klass));
1990                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1991                         td.ip += 5;
1992                         break;
1993                 case CEE_UNBOX_ANY:
1994                         CHECK_STACK (&td, 1);
1995                         token = read32 (td.ip + 1);
1996
1997                         g_assert (method->wrapper_type == MONO_WRAPPER_NONE);
1998                         klass = mono_class_get_full (image, token, generic_context);
1999
2000                         if (mini_type_is_reference (&klass->byval_arg)) {
2001                                 ADD_CODE (&td, MINT_CASTCLASS);
2002                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2003                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2004                                 td.ip += 5;
2005                         } else if (mono_class_is_nullable (klass)) {
2006                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2007                                 /* td.ip is incremented by interp_transform_call */
2008                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2009                         } else {
2010                                 int mt = mint_type (&klass->byval_arg);
2011                                 ADD_CODE (&td, MINT_UNBOX);
2012                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2013
2014                                 ADD_CODE (&td, MINT_LDOBJ);
2015                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2016                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2017
2018                                 if (mt == MINT_TYPE_VT) {
2019                                         int size = mono_class_value_size (klass, NULL);
2020                                         PUSH_VT (&td, size);
2021                                 }
2022                                 td.ip += 5;
2023                         }
2024
2025                         break;
2026                 case CEE_THROW:
2027                         CHECK_STACK (&td, 1);
2028                         SIMPLE_OP (td, MINT_THROW);
2029                         --td.sp;
2030                         generating_code = 0;
2031                         break;
2032                 case CEE_LDFLDA:
2033                         CHECK_STACK (&td, 1);
2034                         token = read32 (td.ip + 1);
2035                         field = mono_field_from_token (image, token, &klass, generic_context);
2036                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2037                         mono_class_init (klass);
2038                         if (is_static) {
2039                                 ADD_CODE (&td, MINT_POP);
2040                                 ADD_CODE (&td, 0);
2041                                 ADD_CODE (&td, MINT_LDSFLDA);
2042                                 ADD_CODE (&td, get_data_item_index (&td, field));
2043                         } else {
2044                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2045                                         ADD_CODE (&td, MINT_LDFLDA);
2046                                 } else {
2047                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2048                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2049                                 }
2050                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2051                         }
2052                         td.ip += 5;
2053                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2054                         break;
2055                 case CEE_LDFLD: {
2056                         CHECK_STACK (&td, 1);
2057                         token = read32 (td.ip + 1);
2058                         field = mono_field_from_token (image, token, &klass, generic_context);
2059                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2060                         mono_class_init (klass);
2061
2062                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2063                         mt = mint_type (&field_klass->byval_arg);
2064                         if (klass->marshalbyref) {
2065                                 g_assert (!is_static);
2066                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2067                                 ADD_CODE(&td, get_data_item_index (&td, field));
2068                         } else  {
2069                                 if (is_static) {
2070                                         ADD_CODE (&td, MINT_POP);
2071                                         ADD_CODE (&td, 0);
2072                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2073                                         ADD_CODE (&td, get_data_item_index (&td, field));
2074                                 } else {
2075                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2076                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2077                                 }
2078                         }
2079                         if (mt == MINT_TYPE_VT) {
2080                                 int size = mono_class_value_size (field_klass, NULL);
2081                                 PUSH_VT(&td, size);
2082                                 WRITE32(&td, &size);
2083                         }
2084                         if (td.sp [-1].type == STACK_TYPE_VT) {
2085                                 int size = mono_class_value_size (klass, NULL);
2086                                 size = (size + 7) & ~7;
2087                                 td.vt_sp -= size;
2088                                 ADD_CODE (&td, MINT_VTRESULT);
2089                                 ADD_CODE (&td, 0);
2090                                 WRITE32 (&td, &size);
2091                         }
2092                         td.ip += 5;
2093                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2094                         break;
2095                 }
2096                 case CEE_STFLD: {
2097                         CHECK_STACK (&td, 2);
2098                         token = read32 (td.ip + 1);
2099                         field = mono_field_from_token (image, token, &klass, generic_context);
2100                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2101                         mono_class_init (klass);
2102                         mt = mint_type(field->type);
2103
2104                         if (klass->marshalbyref) {
2105                                 g_assert (!is_static);
2106                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2107                                 ADD_CODE(&td, get_data_item_index (&td, field));
2108                         } else  {
2109                                 if (is_static) {
2110                                         ADD_CODE (&td, MINT_POP);
2111                                         ADD_CODE (&td, 1);
2112                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2113                                         ADD_CODE (&td, get_data_item_index (&td, field));
2114                                 } else {
2115                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2116                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2117                                 }
2118                         }
2119                         if (mt == MINT_TYPE_VT) {
2120                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2121                                 int size = mono_class_value_size (klass, NULL);
2122                                 POP_VT(&td, size);
2123                                 WRITE32(&td, &size);
2124                         }
2125                         td.ip += 5;
2126                         td.sp -= 2;
2127                         break;
2128                 }
2129                 case CEE_LDSFLDA:
2130                         token = read32 (td.ip + 1);
2131                         field = mono_field_from_token (image, token, &klass, generic_context);
2132                         ADD_CODE(&td, MINT_LDSFLDA);
2133                         ADD_CODE(&td, get_data_item_index (&td, field));
2134                         td.ip += 5;
2135                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2136                         break;
2137                 case CEE_LDSFLD:
2138                         token = read32 (td.ip + 1);
2139                         field = mono_field_from_token (image, token, &klass, generic_context);
2140                         mt = mint_type(field->type);
2141                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2142                         ADD_CODE(&td, get_data_item_index (&td, field));
2143                         klass = NULL;
2144                         if (mt == MINT_TYPE_VT) {
2145                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2146                                 int size = mono_class_value_size (klass, NULL);
2147                                 PUSH_VT(&td, size);
2148                                 WRITE32(&td, &size);
2149                                 klass = field->type->data.klass;
2150                         } else {
2151                                 if (mt == MINT_TYPE_O)
2152                                         klass = mono_class_from_mono_type (field->type);
2153                         }
2154                         td.ip += 5;
2155                         PUSH_TYPE(&td, stack_type [mt], klass);
2156                         break;
2157                 case CEE_STSFLD:
2158                         CHECK_STACK (&td, 1);
2159                         token = read32 (td.ip + 1);
2160                         field = mono_field_from_token (image, token, &klass, generic_context);
2161                         mt = mint_type(field->type);
2162                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2163                         ADD_CODE(&td, get_data_item_index (&td, field));
2164                         if (mt == MINT_TYPE_VT) {
2165                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2166                                 int size = mono_class_value_size (klass, NULL);
2167                                 POP_VT (&td, size);
2168                                 WRITE32 (&td, &size);
2169                         }
2170                         td.ip += 5;
2171                         --td.sp;
2172                         break;
2173                 case CEE_STOBJ: {
2174                         int size;
2175                         token = read32 (td.ip + 1);
2176
2177                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2178                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2179                         else
2180                                 klass = mono_class_get_full (image, token, generic_context);
2181
2182                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2183                         ADD_CODE(&td, get_data_item_index (&td, klass));
2184                         if (td.sp [-1].type == STACK_TYPE_VT) {
2185                                 size = mono_class_value_size (klass, NULL);
2186                                 size = (size + 7) & ~7;
2187                                 td.vt_sp -= size;
2188                         }
2189                         td.ip += 5;
2190                         td.sp -= 2;
2191                         break;
2192                 }
2193                 case CEE_CONV_OVF_I_UN:
2194                 case CEE_CONV_OVF_U_UN:
2195                         CHECK_STACK (&td, 1);
2196                         switch (td.sp [-1].type) {
2197                         case STACK_TYPE_R8:
2198 #if SIZEOF_VOID_P == 8
2199                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2200 #else
2201                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2202 #endif
2203                                 break;
2204                         case STACK_TYPE_I8:
2205 #if SIZEOF_VOID_P == 4
2206                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2207 #endif
2208                                 break;
2209                         case STACK_TYPE_I4:
2210 #if SIZEOF_VOID_P == 8
2211                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2212 #endif
2213                                 break;
2214                         default:
2215                                 g_assert_not_reached ();
2216                                 break;
2217                         }
2218                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2219                         ++td.ip;
2220                         break;
2221                 case CEE_CONV_OVF_I8_UN:
2222                 case CEE_CONV_OVF_U8_UN:
2223                         CHECK_STACK (&td, 1);
2224                         switch (td.sp [-1].type) {
2225                         case STACK_TYPE_R8:
2226                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2227                                 break;
2228                         case STACK_TYPE_I8:
2229                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2230                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2231                                 break;
2232                         case STACK_TYPE_I4:
2233                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2234                                 break;
2235                         default:
2236                                 g_assert_not_reached ();
2237                                 break;
2238                         }
2239                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2240                         ++td.ip;
2241                         break;
2242                 case CEE_BOX: {
2243                         int size;
2244                         CHECK_STACK (&td, 1);
2245                         token = read32 (td.ip + 1);
2246                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2247                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2248                         else
2249                                 klass = mono_class_get_full (image, token, generic_context);
2250
2251                         if (mono_class_is_nullable (klass)) {
2252                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2253                                 /* td.ip is incremented by interp_transform_call */
2254                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2255                         } else if (!klass->valuetype) {
2256                                 /* already boxed, do nothing. */
2257                                 td.ip += 5;
2258                         } else {
2259                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2260                                         size = mono_class_value_size (klass, NULL);
2261                                         size = (size + 7) & ~7;
2262                                         td.vt_sp -= size;
2263                                 }
2264                                 ADD_CODE(&td, MINT_BOX);
2265                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2266                                 ADD_CODE (&td, 0);
2267                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2268                                 td.ip += 5;
2269                         }
2270
2271                         break;
2272                 }
2273                 case CEE_NEWARR: {
2274                         CHECK_STACK (&td, 1);
2275                         token = read32 (td.ip + 1);
2276
2277                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2278                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2279                         else
2280                                 klass = mono_class_get_full (image, token, generic_context);
2281
2282                         unsigned char lentype = (td.sp - 1)->type;
2283                         if (lentype == STACK_TYPE_I8) {
2284                                 /* mimic mini behaviour */
2285                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2286                         } else {
2287                                 g_assert (lentype == STACK_TYPE_I4);
2288                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2289                         }
2290                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2291                         ADD_CODE (&td, MINT_NEWARR);
2292                         ADD_CODE (&td, get_data_item_index (&td, klass));
2293                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2294                         td.ip += 5;
2295                         break;
2296                 }
2297                 case CEE_LDLEN:
2298                         CHECK_STACK (&td, 1);
2299                         SIMPLE_OP (td, MINT_LDLEN);
2300                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2301                         break;
2302                 case CEE_LDELEMA:
2303                         CHECK_STACK (&td, 2);
2304                         ENSURE_I4 (&td, 1);
2305                         token = read32 (td.ip + 1);
2306
2307                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2308                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2309                         else
2310                                 klass = mono_class_get_full (image, token, generic_context);
2311
2312                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2313                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2314                         } else {
2315                                 ADD_CODE (&td, MINT_LDELEMA);
2316                         }
2317                         ADD_CODE (&td, get_data_item_index (&td, klass));
2318                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2319                         ADD_CODE (&td, 2);
2320                         readonly = FALSE;
2321
2322                         td.ip += 5;
2323                         --td.sp;
2324                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2325                         break;
2326                 case CEE_LDELEM_I1:
2327                         CHECK_STACK (&td, 2);
2328                         ENSURE_I4 (&td, 1);
2329                         SIMPLE_OP (td, MINT_LDELEM_I1);
2330                         --td.sp;
2331                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2332                         break;
2333                 case CEE_LDELEM_U1:
2334                         CHECK_STACK (&td, 2);
2335                         ENSURE_I4 (&td, 1);
2336                         SIMPLE_OP (td, MINT_LDELEM_U1);
2337                         --td.sp;
2338                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2339                         break;
2340                 case CEE_LDELEM_I2:
2341                         CHECK_STACK (&td, 2);
2342                         ENSURE_I4 (&td, 1);
2343                         SIMPLE_OP (td, MINT_LDELEM_I2);
2344                         --td.sp;
2345                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2346                         break;
2347                 case CEE_LDELEM_U2:
2348                         CHECK_STACK (&td, 2);
2349                         ENSURE_I4 (&td, 1);
2350                         SIMPLE_OP (td, MINT_LDELEM_U2);
2351                         --td.sp;
2352                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2353                         break;
2354                 case CEE_LDELEM_I4:
2355                         CHECK_STACK (&td, 2);
2356                         ENSURE_I4 (&td, 1);
2357                         SIMPLE_OP (td, MINT_LDELEM_I4);
2358                         --td.sp;
2359                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2360                         break;
2361                 case CEE_LDELEM_U4:
2362                         CHECK_STACK (&td, 2);
2363                         ENSURE_I4 (&td, 1);
2364                         SIMPLE_OP (td, MINT_LDELEM_U4);
2365                         --td.sp;
2366                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2367                         break;
2368                 case CEE_LDELEM_I8:
2369                         CHECK_STACK (&td, 2);
2370                         ENSURE_I4 (&td, 1);
2371                         SIMPLE_OP (td, MINT_LDELEM_I8);
2372                         --td.sp;
2373                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2374                         break;
2375                 case CEE_LDELEM_I:
2376                         CHECK_STACK (&td, 2);
2377                         ENSURE_I4 (&td, 1);
2378                         SIMPLE_OP (td, MINT_LDELEM_I);
2379                         --td.sp;
2380                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2381                         break;
2382                 case CEE_LDELEM_R4:
2383                         CHECK_STACK (&td, 2);
2384                         ENSURE_I4 (&td, 1);
2385                         SIMPLE_OP (td, MINT_LDELEM_R4);
2386                         --td.sp;
2387                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2388                         break;
2389                 case CEE_LDELEM_R8:
2390                         CHECK_STACK (&td, 2);
2391                         ENSURE_I4 (&td, 1);
2392                         SIMPLE_OP (td, MINT_LDELEM_R8);
2393                         --td.sp;
2394                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2395                         break;
2396                 case CEE_LDELEM_REF:
2397                         CHECK_STACK (&td, 2);
2398                         ENSURE_I4 (&td, 1);
2399                         SIMPLE_OP (td, MINT_LDELEM_REF);
2400                         --td.sp;
2401                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2402                         break;
2403                 case CEE_LDELEM:
2404                         CHECK_STACK (&td, 2);
2405                         token = read32 (td.ip + 1);
2406                         klass = mono_class_get_full (image, token, generic_context);
2407                         switch (mint_type (&klass->byval_arg)) {
2408                                 case MINT_TYPE_I1:
2409                                         ENSURE_I4 (&td, 1);
2410                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2411                                         --td.sp;
2412                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2413                                         break;
2414                                 case MINT_TYPE_U1:
2415                                         ENSURE_I4 (&td, 1);
2416                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2417                                         --td.sp;
2418                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2419                                         break;
2420                                 case MINT_TYPE_U2:
2421                                         ENSURE_I4 (&td, 1);
2422                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2423                                         --td.sp;
2424                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2425                                         break;
2426                                 case MINT_TYPE_I2:
2427                                         ENSURE_I4 (&td, 1);
2428                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2429                                         --td.sp;
2430                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2431                                         break;
2432                                 case MINT_TYPE_I4:
2433                                         ENSURE_I4 (&td, 1);
2434                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2435                                         --td.sp;
2436                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2437                                         break;
2438                                 case MINT_TYPE_I8:
2439                                         ENSURE_I4 (&td, 1);
2440                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2441                                         --td.sp;
2442                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2443                                         break;
2444                                 case MINT_TYPE_R4:
2445                                         ENSURE_I4 (&td, 1);
2446                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2447                                         --td.sp;
2448                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2449                                         break;
2450                                 case MINT_TYPE_R8:
2451                                         ENSURE_I4 (&td, 1);
2452                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2453                                         --td.sp;
2454                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2455                                         break;
2456                                 case MINT_TYPE_O:
2457                                         ENSURE_I4 (&td, 1);
2458                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2459                                         --td.sp;
2460                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2461                                         break;
2462                                 case MINT_TYPE_VT: {
2463                                         int size = mono_class_value_size (klass, NULL);
2464                                         ENSURE_I4 (&td, 1);
2465                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2466                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2467                                         WRITE32 (&td, &size);
2468                                         --td.sp;
2469                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2470                                         PUSH_VT (&td, size);
2471                                         break;
2472                                 }
2473                                 default: {
2474                                         GString *res = g_string_new ("");
2475                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2476                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2477                                         g_string_free (res, TRUE);
2478                                         g_assert (0);
2479                                         break;
2480                                 }
2481                         }
2482                         td.ip += 4;
2483                         break;
2484                 case CEE_STELEM_I:
2485                         CHECK_STACK (&td, 3);
2486                         ENSURE_I4 (&td, 2);
2487                         SIMPLE_OP (td, MINT_STELEM_I);
2488                         td.sp -= 3;
2489                         break;
2490                 case CEE_STELEM_I1:
2491                         CHECK_STACK (&td, 3);
2492                         ENSURE_I4 (&td, 2);
2493                         SIMPLE_OP (td, MINT_STELEM_I1);
2494                         td.sp -= 3;
2495                         break;
2496                 case CEE_STELEM_I2:
2497                         CHECK_STACK (&td, 3);
2498                         ENSURE_I4 (&td, 2);
2499                         SIMPLE_OP (td, MINT_STELEM_I2);
2500                         td.sp -= 3;
2501                         break;
2502                 case CEE_STELEM_I4:
2503                         CHECK_STACK (&td, 3);
2504                         ENSURE_I4 (&td, 2);
2505                         SIMPLE_OP (td, MINT_STELEM_I4);
2506                         td.sp -= 3;
2507                         break;
2508                 case CEE_STELEM_I8:
2509                         CHECK_STACK (&td, 3);
2510                         ENSURE_I4 (&td, 2);
2511                         SIMPLE_OP (td, MINT_STELEM_I8);
2512                         td.sp -= 3;
2513                         break;
2514                 case CEE_STELEM_R4:
2515                         CHECK_STACK (&td, 3);
2516                         ENSURE_I4 (&td, 2);
2517                         SIMPLE_OP (td, MINT_STELEM_R4);
2518                         td.sp -= 3;
2519                         break;
2520                 case CEE_STELEM_R8:
2521                         CHECK_STACK (&td, 3);
2522                         ENSURE_I4 (&td, 2);
2523                         SIMPLE_OP (td, MINT_STELEM_R8);
2524                         td.sp -= 3;
2525                         break;
2526                 case CEE_STELEM_REF:
2527                         CHECK_STACK (&td, 3);
2528                         ENSURE_I4 (&td, 2);
2529                         SIMPLE_OP (td, MINT_STELEM_REF);
2530                         td.sp -= 3;
2531                         break;
2532                 case CEE_STELEM:
2533                         CHECK_STACK (&td, 3);
2534                         ENSURE_I4 (&td, 2);
2535                         token = read32 (td.ip + 1);
2536                         klass = mono_class_get_full (image, token, generic_context);
2537                         switch (mint_type (&klass->byval_arg)) {
2538                                 case MINT_TYPE_U1:
2539                                         SIMPLE_OP (td, MINT_STELEM_U1);
2540                                         break;
2541                                 case MINT_TYPE_I4:
2542                                         SIMPLE_OP (td, MINT_STELEM_I4);
2543                                         break;
2544                                 case MINT_TYPE_I8:
2545                                         SIMPLE_OP (td, MINT_STELEM_I8);
2546                                         break;
2547                                 case MINT_TYPE_O:
2548                                         SIMPLE_OP (td, MINT_STELEM_REF);
2549                                         break;
2550                                 case MINT_TYPE_VT: {
2551                                         int size = mono_class_value_size (klass, NULL);
2552                                         SIMPLE_OP (td, MINT_STELEM_VT);
2553                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2554                                         WRITE32 (&td, &size);
2555                                         POP_VT (&td, size);
2556                                         break;
2557                                 }
2558                                 default: {
2559                                         GString *res = g_string_new ("");
2560                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2561                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2562                                         g_string_free (res, TRUE);
2563                                         g_assert (0);
2564                                         break;
2565                                 }
2566                         }
2567                         td.ip += 4;
2568                         td.sp -= 3;
2569                         break;
2570 #if 0
2571                 case CEE_CONV_OVF_U1:
2572
2573                 case CEE_CONV_OVF_I8:
2574
2575 #if SIZEOF_VOID_P == 8
2576                 case CEE_CONV_OVF_U:
2577 #endif
2578                 case CEE_REFANYVAL: ves_abort(); break;
2579 #endif
2580                 case CEE_CKFINITE:
2581                         CHECK_STACK (&td, 1);
2582                         SIMPLE_OP (td, MINT_CKFINITE);
2583                         break;
2584                 case CEE_CONV_OVF_I1:
2585                 case CEE_CONV_OVF_I1_UN:
2586                         CHECK_STACK (&td, 1);
2587                         switch (td.sp [-1].type) {
2588                         case STACK_TYPE_R8:
2589                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2590                                 break;
2591                         case STACK_TYPE_I4:
2592                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2593                                 break;
2594                         case STACK_TYPE_I8:
2595                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2596                                 break;
2597                         default:
2598                                 g_assert_not_reached ();
2599                         }
2600                         ++td.ip;
2601                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2602                         break;
2603                 case CEE_CONV_OVF_U1:
2604                 case CEE_CONV_OVF_U1_UN:
2605                         CHECK_STACK (&td, 1);
2606                         switch (td.sp [-1].type) {
2607                         case STACK_TYPE_R8:
2608                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2609                                 break;
2610                         case STACK_TYPE_I4:
2611                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2612                                 break;
2613                         case STACK_TYPE_I8:
2614                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2615                                 break;
2616                         default:
2617                                 g_assert_not_reached ();
2618                         }
2619                         ++td.ip;
2620                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2621                         break;
2622                 case CEE_CONV_OVF_I2:
2623                 case CEE_CONV_OVF_I2_UN:
2624                         CHECK_STACK (&td, 1);
2625                         switch (td.sp [-1].type) {
2626                         case STACK_TYPE_R8:
2627                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2628                                 break;
2629                         case STACK_TYPE_I4:
2630                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2631                                 break;
2632                         case STACK_TYPE_I8:
2633                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2634                                 break;
2635                         default:
2636                                 g_assert_not_reached ();
2637                         }
2638                         ++td.ip;
2639                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2640                         break;
2641                 case CEE_CONV_OVF_U2_UN:
2642                 case CEE_CONV_OVF_U2:
2643                         CHECK_STACK (&td, 1);
2644                         switch (td.sp [-1].type) {
2645                         case STACK_TYPE_R8:
2646                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2647                                 break;
2648                         case STACK_TYPE_I4:
2649                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2650                                 break;
2651                         case STACK_TYPE_I8:
2652                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2653                                 break;
2654                         default:
2655                                 g_assert_not_reached ();
2656                         }
2657                         ++td.ip;
2658                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2659                         break;
2660 #if SIZEOF_VOID_P == 4
2661                 case CEE_CONV_OVF_I:
2662 #endif
2663                 case CEE_CONV_OVF_I4:
2664                 case CEE_CONV_OVF_I4_UN:
2665                         CHECK_STACK (&td, 1);
2666                         switch (td.sp [-1].type) {
2667                         case STACK_TYPE_R8:
2668                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2669                                 break;
2670                         case STACK_TYPE_I4:
2671                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2672                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2673                                 break;
2674                         case STACK_TYPE_I8:
2675                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2676                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2677                                 else
2678                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2679                                 break;
2680                         default:
2681                                 g_assert_not_reached ();
2682                         }
2683                         ++td.ip;
2684                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2685                         break;
2686 #if SIZEOF_VOID_P == 4
2687                 case CEE_CONV_OVF_U:
2688 #endif
2689                 case CEE_CONV_OVF_U4:
2690                 case CEE_CONV_OVF_U4_UN:
2691                         CHECK_STACK (&td, 1);
2692                         switch (td.sp [-1].type) {
2693                         case STACK_TYPE_R8:
2694                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2695                                 break;
2696                         case STACK_TYPE_I4:
2697                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2698                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2699                                 break;
2700                         case STACK_TYPE_I8:
2701                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2702                                 break;
2703                         default:
2704                                 g_assert_not_reached ();
2705                         }
2706                         ++td.ip;
2707                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2708                         break;
2709 #if SIZEOF_VOID_P == 8
2710                 case CEE_CONV_OVF_I:
2711 #endif
2712                 case CEE_CONV_OVF_I8:
2713                         CHECK_STACK (&td, 1);
2714                         switch (td.sp [-1].type) {
2715                         case STACK_TYPE_R8:
2716                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2717                                 break;
2718                         case STACK_TYPE_I4:
2719                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2720                                 break;
2721                         case STACK_TYPE_I8:
2722                                 break;
2723                         default:
2724                                 g_assert_not_reached ();
2725                         }
2726                         ++td.ip;
2727                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2728                         break;
2729 #if SIZEOF_VOID_P == 8
2730                 case CEE_CONV_OVF_U:
2731 #endif
2732                 case CEE_CONV_OVF_U8:
2733                         CHECK_STACK (&td, 1);
2734                         switch (td.sp [-1].type) {
2735                         case STACK_TYPE_R8:
2736                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2737                                 break;
2738                         case STACK_TYPE_I4:
2739                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2740                                 break;
2741                         case STACK_TYPE_I8:
2742                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2743                                 break;
2744                         default:
2745                                 g_assert_not_reached ();
2746                         }
2747                         ++td.ip;
2748                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2749                         break;
2750                 case CEE_LDTOKEN: {
2751                         int size;
2752                         gpointer handle;
2753                         token = read32 (td.ip + 1);
2754                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2755                                 handle = mono_method_get_wrapper_data (method, token);
2756                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2757                                 if (klass == mono_defaults.typehandle_class)
2758                                         handle = &((MonoClass *) handle)->byval_arg;
2759
2760                                 if (generic_context) {
2761                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
2762                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2763                                 }
2764                         } else {
2765                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2766                         }
2767                         mono_class_init (klass);
2768                         mt = mint_type (&klass->byval_arg);
2769                         g_assert (mt == MINT_TYPE_VT);
2770                         size = mono_class_value_size (klass, NULL);
2771                         g_assert (size == sizeof(gpointer));
2772                         PUSH_VT (&td, sizeof(gpointer));
2773                         ADD_CODE (&td, MINT_LDTOKEN);
2774                         ADD_CODE (&td, get_data_item_index (&td, handle));
2775
2776                         SET_TYPE (td.sp, stack_type [mt], klass);
2777                         td.sp++;
2778                         td.ip += 5;
2779                         break;
2780                 }
2781                 case CEE_ADD_OVF:
2782                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2783                         ++td.ip;
2784                         break;
2785                 case CEE_ADD_OVF_UN:
2786                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2787                         ++td.ip;
2788                         break;
2789                 case CEE_MUL_OVF:
2790                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2791                         ++td.ip;
2792                         break;
2793                 case CEE_MUL_OVF_UN:
2794                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2795                         ++td.ip;
2796                         break;
2797                 case CEE_SUB_OVF:
2798                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2799                         ++td.ip;
2800                         break;
2801                 case CEE_SUB_OVF_UN:
2802                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2803                         ++td.ip;
2804                         break;
2805                 case CEE_ENDFINALLY:
2806                         td.sp = td.stack;
2807                         SIMPLE_OP (td, MINT_ENDFINALLY);
2808                         generating_code = 0;
2809                         break;
2810                 case CEE_LEAVE:
2811                         td.sp = td.stack;
2812                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2813                         td.ip += 5;
2814                         generating_code = 0;
2815                         break;
2816                 case CEE_LEAVE_S:
2817                         td.sp = td.stack;
2818                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2819                         td.ip += 2;
2820                         generating_code = 0;
2821                         break;
2822                 case CEE_UNUSED41:
2823                         ++td.ip;
2824                         switch (*td.ip) {
2825                                 case CEE_MONO_CALLI_EXTRA_ARG:
2826                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2827                                         ADD_CODE (&td, MINT_POP);
2828                                         ADD_CODE (&td, 1);
2829                                         --td.sp;
2830                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2831                                         break;
2832                                 case CEE_MONO_JIT_ICALL_ADDR: {
2833                                         guint32 token;
2834                                         gpointer func;
2835                                         MonoJitICallInfo *info;
2836
2837                                         token = read32 (td.ip + 1);
2838                                         td.ip += 5;
2839                                         func = mono_method_get_wrapper_data (method, token);
2840                                         info = mono_find_jit_icall_by_addr (func);
2841
2842                                         ADD_CODE (&td, MINT_LDFTN);
2843                                         ADD_CODE (&td, get_data_item_index (&td, func));
2844                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2845                                         break;
2846                                 }
2847                                 case CEE_MONO_ICALL: {
2848                                         guint32 token;
2849                                         gpointer func;
2850                                         MonoJitICallInfo *info;
2851
2852                                         token = read32 (td.ip + 1);
2853                                         td.ip += 5;
2854                                         func = mono_method_get_wrapper_data (method, token);
2855                                         info = mono_find_jit_icall_by_addr (func);
2856                                         g_assert (info);
2857
2858                                         CHECK_STACK (&td, info->sig->param_count);
2859                                         switch (info->sig->param_count) {
2860                                         case 0:
2861                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2862                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2863                                                 else
2864                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2865                                                 break;
2866                                         case 1:
2867                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2868                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2869                                                 else
2870                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2871                                                 break;
2872                                         case 2:
2873                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2874                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2875                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2876                                                         else
2877                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2878                                                 } else {
2879                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2880                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2881                                                         else
2882                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2883                                                 }
2884                                                 break;
2885                                         case 3:
2886                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2887                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2888                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2889                                                 else
2890                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2891                                                 break;
2892                                         default:
2893                                                 g_assert_not_reached ();
2894                                         }
2895
2896                                         if (func == mono_ftnptr_to_delegate) {
2897                                                 g_error ("TODO: ?");
2898                                         }
2899                                         ADD_CODE(&td, get_data_item_index (&td, func));
2900                                         td.sp -= info->sig->param_count;
2901
2902                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2903                                                 td.sp ++;
2904                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2905                                         }
2906                                         break;
2907                                 }
2908                         case CEE_MONO_VTADDR: {
2909                                 int size;
2910                                 CHECK_STACK (&td, 1);
2911                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2912                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2913                                 else
2914                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2915                                 size = (size + 7) & ~7;
2916                                 ADD_CODE(&td, MINT_VTRESULT);
2917                                 ADD_CODE(&td, 0);
2918                                 WRITE32(&td, &size);
2919                                 td.vt_sp -= size;
2920                                 ++td.ip;
2921                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2922                                 break;
2923                         }
2924                         case CEE_MONO_LDPTR:
2925                         case CEE_MONO_CLASSCONST:
2926                                 token = read32 (td.ip + 1);
2927                                 td.ip += 5;
2928                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2929                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2930                                 td.sp [0].type = STACK_TYPE_I;
2931                                 ++td.sp;
2932                                 break;
2933                         case CEE_MONO_OBJADDR:
2934                                 CHECK_STACK (&td, 1);
2935                                 ++td.ip;
2936                                 td.sp[-1].type = STACK_TYPE_MP;
2937                                 /* do nothing? */
2938                                 break;
2939                         case CEE_MONO_NEWOBJ:
2940                                 token = read32 (td.ip + 1);
2941                                 td.ip += 5;
2942                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2943                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2944                                 td.sp [0].type = STACK_TYPE_O;
2945                                 ++td.sp;
2946                                 break;
2947                         case CEE_MONO_RETOBJ:
2948                                 CHECK_STACK (&td, 1);
2949                                 token = read32 (td.ip + 1);
2950                                 td.ip += 5;
2951                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2952                                 td.sp--;
2953
2954                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2955
2956                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2957
2958                                 if (td.sp > td.stack)
2959                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2960                                 break;
2961                         case CEE_MONO_LDNATIVEOBJ:
2962                                 token = read32 (td.ip + 1);
2963                                 td.ip += 5;
2964                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2965                                 g_assert(klass->valuetype);
2966                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2967                                 break;
2968                         case CEE_MONO_SAVE_LMF:
2969                         case CEE_MONO_RESTORE_LMF:
2970                         case CEE_MONO_NOT_TAKEN:
2971                                 ++td.ip;
2972                                 break;
2973                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
2974                                 ADD_CODE (&td, MINT_MONO_LDPTR);
2975                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
2976                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
2977                                 ++td.ip;
2978                                 break;
2979                         default:
2980                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2981                         }
2982                         break;
2983 #if 0
2984                 case CEE_PREFIX7:
2985                 case CEE_PREFIX6:
2986                 case CEE_PREFIX5:
2987                 case CEE_PREFIX4:
2988                 case CEE_PREFIX3:
2989                 case CEE_PREFIX2:
2990                 case CEE_PREFIXREF: ves_abort(); break;
2991 #endif
2992                 /*
2993                  * Note: Exceptions thrown when executing a prefixed opcode need
2994                  * to take into account the number of prefix bytes (usually the
2995                  * throw point is just (ip - n_prefix_bytes).
2996                  */
2997                 case CEE_PREFIX1:
2998                         ++td.ip;
2999                         switch (*td.ip) {
3000 #if 0
3001                         case CEE_ARGLIST: ves_abort(); break;
3002 #endif
3003                         case CEE_CEQ:
3004                                 CHECK_STACK(&td, 2);
3005                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3006                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3007                                 else
3008                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
3009                                 --td.sp;
3010                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3011                                 ++td.ip;
3012                                 break;
3013                         case CEE_CGT:
3014                                 CHECK_STACK(&td, 2);
3015                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3016                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3017                                 else
3018                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3019                                 --td.sp;
3020                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3021                                 ++td.ip;
3022                                 break;
3023                         case CEE_CGT_UN:
3024                                 CHECK_STACK(&td, 2);
3025                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3026                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3027                                 else
3028                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3029                                 --td.sp;
3030                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3031                                 ++td.ip;
3032                                 break;
3033                         case CEE_CLT:
3034                                 CHECK_STACK(&td, 2);
3035                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3036                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3037                                 else
3038                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3039                                 --td.sp;
3040                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3041                                 ++td.ip;
3042                                 break;
3043                         case CEE_CLT_UN:
3044                                 CHECK_STACK(&td, 2);
3045                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3046                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3047                                 else
3048                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3049                                 --td.sp;
3050                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3051                                 ++td.ip;
3052                                 break;
3053                         case CEE_LDVIRTFTN: /* fallthrough */
3054                         case CEE_LDFTN: {
3055                                 MonoMethod *m;
3056                                 if (*td.ip == CEE_LDVIRTFTN) {
3057                                         CHECK_STACK (&td, 1);
3058                                         --td.sp;
3059                                 }
3060                                 token = read32 (td.ip + 1);
3061                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3062                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3063                                 else
3064                                         m = mono_get_method_full (image, token, NULL, generic_context);
3065
3066                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3067                                         m = mono_marshal_get_synchronized_wrapper (m);
3068
3069                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3070                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3071                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3072                                 td.ip += 5;
3073                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3074                                 break;
3075                         }
3076                         case CEE_LDARG:
3077                                 load_arg (&td, read16 (td.ip + 1));
3078                                 td.ip += 3;
3079                                 break;
3080                         case CEE_LDARGA: {
3081                                 int n = read16 (td.ip + 1);
3082                                 ADD_CODE (&td, MINT_LDARGA);
3083                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3084                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3085                                 td.ip += 3;
3086                                 break;
3087                         }
3088                         case CEE_STARG:
3089                                 store_arg (&td, read16 (td.ip + 1));
3090                                 td.ip += 3;
3091                                 break;
3092                         case CEE_LDLOC:
3093                                 load_local (&td, read16 (td.ip + 1));
3094                                 td.ip += 3;
3095                                 break;
3096                         case CEE_LDLOCA:
3097                                 ADD_CODE(&td, MINT_LDLOCA_S);
3098                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3099                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3100                                 td.ip += 3;
3101                                 break;
3102                         case CEE_STLOC:
3103                                 store_local (&td, read16 (td.ip + 1));
3104                                 td.ip += 3;
3105                                 break;
3106                         case CEE_LOCALLOC:
3107                                 CHECK_STACK (&td, 1);
3108 #if SIZEOF_VOID_P == 8
3109                                 if (td.sp [-1].type == STACK_TYPE_I8)
3110                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3111 #endif
3112                                 ADD_CODE(&td, MINT_LOCALLOC);
3113                                 if (td.sp != td.stack + 1)
3114                                         g_warning("CEE_LOCALLOC: stack not empty");
3115                                 ++td.ip;
3116                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3117                                 break;
3118 #if 0
3119                         case CEE_UNUSED57: ves_abort(); break;
3120 #endif
3121                         case CEE_ENDFILTER:
3122                                 ADD_CODE (&td, MINT_ENDFILTER);
3123                                 ++td.ip;
3124                                 break;
3125                         case CEE_UNALIGNED_:
3126                                 ++td.ip;
3127                                 /* FIX: should do something? */;
3128                                 break;
3129                         case CEE_VOLATILE_:
3130                                 ++td.ip;
3131                                 /* FIX: should do something? */;
3132                                 break;
3133                         case CEE_TAIL_:
3134                                 ++td.ip;
3135                                 /* FIX: should do something? */;
3136                                 break;
3137                         case CEE_INITOBJ:
3138                                 CHECK_STACK(&td, 1);
3139                                 token = read32 (td.ip + 1);
3140                                 klass = mono_class_get_full (image, token, generic_context);
3141                                 if (klass->valuetype) {
3142                                         ADD_CODE (&td, MINT_INITOBJ);
3143                                         i32 = mono_class_value_size (klass, NULL);
3144                                         WRITE32 (&td, &i32);
3145                                 } else {
3146                                         ADD_CODE (&td, MINT_LDNULL);
3147                                         ADD_CODE (&td, MINT_STIND_REF);
3148                                 }
3149                                 td.ip += 5;
3150                                 --td.sp;
3151                                 break;
3152                         case CEE_CPBLK:
3153                                 CHECK_STACK(&td, 3);
3154                                 /* FIX? convert length to I8? */
3155                                 ADD_CODE(&td, MINT_CPBLK);
3156                                 td.sp -= 3;
3157                                 ++td.ip;
3158                                 break;
3159                         case CEE_READONLY_:
3160                                 readonly = TRUE;
3161                                 td.ip += 1;
3162                                 break;
3163                         case CEE_CONSTRAINED_:
3164                                 token = read32 (td.ip + 1);
3165                                 constrained_class = mono_class_get_full (image, token, generic_context);
3166                                 mono_class_init (constrained_class);
3167                                 td.ip += 5;
3168                                 break;
3169                         case CEE_INITBLK:
3170                                 CHECK_STACK(&td, 3);
3171                                 ADD_CODE(&td, MINT_INITBLK);
3172                                 td.sp -= 3;
3173                                 td.ip += 1;
3174                                 break;
3175 #if 0
3176                         case CEE_NO_:
3177                                 /* FIXME: implement */
3178                                 ip += 2;
3179                                 break;
3180 #endif
3181                         case CEE_RETHROW:
3182                                 SIMPLE_OP (td, MINT_RETHROW);
3183                                 generating_code = 0;
3184                                 break;
3185                         case CEE_SIZEOF: {
3186                                 gint32 size;
3187                                 token = read32 (td.ip + 1);
3188                                 td.ip += 5;
3189                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3190                                         int align;
3191                                         MonoType *type = mono_type_create_from_typespec (image, token);
3192                                         size = mono_type_size (type, &align);
3193                                 } else {
3194                                         int align;
3195                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
3196                                         mono_class_init (szclass);
3197 #if 0
3198                                         if (!szclass->valuetype)
3199                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3200 #endif
3201                                         size = mono_type_size (&szclass->byval_arg, &align);
3202                                 }
3203                                 ADD_CODE(&td, MINT_LDC_I4);
3204                                 WRITE32(&td, &size);
3205                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3206                                 break;
3207                         }
3208 #if 0
3209                         case CEE_REFANYTYPE: ves_abort(); break;
3210 #endif
3211                         default:
3212                                 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);
3213                         }
3214                         break;
3215                 default:
3216                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3217                 }
3218
3219                 if (td.new_ip - td.new_code != new_in_start_offset)
3220                         td.last_new_ip = td.new_code + new_in_start_offset;
3221                 else if (td.is_bb_start [td.in_start - td.il_code])
3222                         td.is_bb_start [td.ip - td.il_code] = 1;
3223
3224                 td.last_ip = td.in_start;
3225         }
3226
3227         if (mono_interp_traceopt) {
3228                 const guint16 *p = td.new_code;
3229                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3230                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3231                 while (p < td.new_ip) {
3232                         p = mono_interp_dis_mintop(td.new_code, p);
3233                         printf("\n");
3234                 }
3235         }
3236         g_assert (td.max_stack_height <= (header->max_stack + 1));
3237
3238         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3239         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3240         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3241         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3242         g_free (td.new_code);
3243         rtm->new_body_start = rtm->code + body_start_offset;
3244         rtm->num_clauses = header->num_clauses;
3245         for (i = 0; i < header->num_clauses; i++) {
3246                 MonoExceptionClause *c = rtm->clauses + i;
3247                 int end_off = c->try_offset + c->try_len;
3248                 c->try_offset = td.in_offsets [c->try_offset];
3249                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3250                 end_off = c->handler_offset + c->handler_len;
3251                 c->handler_offset = td.in_offsets [c->handler_offset];
3252                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3253                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3254                         c->data.filter_offset = td.in_offsets [c->data.filter_offset];
3255         }
3256         rtm->vt_stack_size = td.max_vt_sp;
3257         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3258         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3259         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3260         g_free (td.in_offsets);
3261         g_free (td.forward_refs);
3262         for (i = 0; i < header->code_size; ++i)
3263                 g_free (td.stack_state [i]);
3264         g_free (td.stack_state);
3265         g_free (td.stack_height);
3266         g_free (td.vt_stack_size);
3267         g_free (td.data_items);
3268         g_free (td.stack);
3269         g_hash_table_destroy (td.data_hash);
3270 }
3271
3272 static mono_mutex_t calc_section;
3273
3274 void
3275 mono_interp_transform_init (void)
3276 {
3277         mono_os_mutex_init_recursive(&calc_section);
3278 }
3279
3280 MonoException *
3281 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3282 {
3283         int i, align, size, offset;
3284         MonoMethod *method = runtime_method->method;
3285         MonoImage *image = method->klass->image;
3286         MonoMethodHeader *header = mono_method_get_header (method);
3287         MonoMethodSignature *signature = mono_method_signature (method);
3288         register const unsigned char *ip, *end;
3289         const MonoOpcode *opcode;
3290         MonoMethod *m;
3291         MonoClass *class;
3292         MonoDomain *domain = mono_domain_get ();
3293         unsigned char *is_bb_start;
3294         int in;
3295         MonoVTable *method_class_vt;
3296         int backwards;
3297         MonoGenericContext *generic_context = NULL;
3298
3299         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3300         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3301         if (!method_class_vt->initialized) {
3302                 MonoError error;
3303                 jmp_buf env;
3304                 MonoInvocation *last_env_frame = context->env_frame;
3305                 jmp_buf *old_env = context->current_env;
3306                 error_init (&error);
3307
3308                 if (setjmp(env)) {
3309                         MonoException *failed = context->env_frame->ex;
3310                         context->env_frame->ex = NULL;
3311                         context->env_frame = last_env_frame;
3312                         context->current_env = old_env;
3313                         return failed;
3314                 }
3315                 context->env_frame = context->current_frame;
3316                 context->current_env = &env;
3317                 mono_runtime_class_init_full (method_class_vt, &error);
3318                 if (!mono_error_ok (&error)) {
3319                         return mono_error_convert_to_exception (&error);
3320                 }
3321                 context->env_frame = last_env_frame;
3322                 context->current_env = old_env;
3323         }
3324
3325         mono_profiler_method_jit (method); /* sort of... */
3326
3327         if (mono_method_signature (method)->is_inflated)
3328                 generic_context = mono_method_get_context (method);
3329         else {
3330                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3331                 if (generic_container)
3332                         generic_context = &generic_container->context;
3333         }
3334
3335         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3336                 MonoMethod *nm = NULL;
3337                 mono_os_mutex_lock(&calc_section);
3338                 if (runtime_method->transformed) {
3339                         mono_os_mutex_unlock(&calc_section);
3340                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3341                         return NULL;
3342                 }
3343
3344                 /* assumes all internal calls with an array this are built in... */
3345                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3346                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3347                         signature = mono_method_signature (nm);
3348                 } else {
3349                         const char *name = method->name;
3350                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3351                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3352                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3353                                         g_assert (mi);
3354                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3355                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3356                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3357                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3358                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3359                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3360                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3361                                         nm = mono_marshal_get_delegate_end_invoke (method);
3362                                 }
3363                         }
3364                         if (nm == NULL) {
3365                                 runtime_method->code = g_malloc(sizeof(short));
3366                                 runtime_method->code[0] = MINT_CALLRUN;
3367                         }
3368                 }
3369                 if (nm == NULL) {
3370                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3371                         runtime_method->alloca_size = runtime_method->stack_size;
3372                         runtime_method->transformed = TRUE;
3373                         mono_os_mutex_unlock(&calc_section);
3374                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3375                         return NULL;
3376                 }
3377                 method = nm;
3378                 header = mono_method_get_header (nm);
3379                 mono_os_mutex_unlock(&calc_section);
3380         } else if (method->klass == mono_defaults.array_class) {
3381                 if (!strcmp (method->name, "UnsafeMov")) {
3382                         mono_os_mutex_lock (&calc_section);
3383                         if (!runtime_method->transformed) {
3384                                 runtime_method->code = g_malloc (sizeof (short));
3385                                 runtime_method->code[0] = MINT_CALLRUN;
3386                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
3387                                 runtime_method->alloca_size = runtime_method->stack_size;
3388                                 runtime_method->transformed = TRUE;
3389                         }
3390                         mono_os_mutex_unlock(&calc_section);
3391                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3392                         return NULL;
3393                 } else if (!strcmp (method->name, "UnsafeStore)")) {
3394                         g_error ("TODO");
3395                 } else if (!strcmp (method->name, "UnsafeLoad)")) {
3396                         g_error ("TODO");
3397                 }
3398         }
3399         g_assert ((signature->param_count + signature->hasthis) < 1000);
3400         g_assert (header->max_stack < 10000);
3401         /* intern the strings in the method. */
3402         ip = header->code;
3403         end = ip + header->code_size;
3404
3405         is_bb_start = g_malloc0(header->code_size);
3406         is_bb_start [0] = 1;
3407         while (ip < end) {
3408                 in = *ip;
3409                 if (in == 0xfe) {
3410                         ip++;
3411                         in = *ip + 256;
3412                 }
3413                 else if (in == 0xf0) {
3414                         ip++;
3415                         in = *ip + MONO_CEE_MONO_ICALL;
3416                 }
3417                 opcode = &mono_opcodes [in];
3418                 switch (opcode->argument) {
3419                 case MonoInlineNone:
3420                         ++ip;
3421                         break;
3422                 case MonoInlineString:
3423                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3424                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3425                         ip += 5;
3426                         break;
3427                 case MonoInlineType:
3428                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3429                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
3430                                 mono_class_init (class);
3431                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3432 #if 0
3433                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3434                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3435                                         mono_class_vtable (domain, class);
3436 #endif
3437                         }
3438                         ip += 5;
3439                         break;
3440                 case MonoInlineMethod:
3441                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3442                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3443                                 if (m == NULL) {
3444                                         g_free (is_bb_start);
3445                                         g_error ("FIXME: where to get method and class string?");
3446                                         return NULL;
3447                                         // return mono_get_exception_missing_method ();
3448                                 }
3449                                 mono_class_init (m->klass);
3450                                 if (!mono_class_is_interface (m->klass))
3451                                         mono_class_vtable (domain, m->klass);
3452                         }
3453                         ip += 5;
3454                         break;
3455                 case MonoInlineField:
3456                 case MonoInlineSig:
3457                 case MonoInlineI:
3458                 case MonoInlineTok:
3459                 case MonoShortInlineR:
3460                         ip += 5;
3461                         break;
3462                 case MonoInlineBrTarget:
3463                         offset = read32 (ip + 1);
3464                         ip += 5;
3465                         backwards = offset < 0;
3466                         offset += ip - header->code;
3467                         g_assert (offset >= 0 && offset < header->code_size);
3468                         is_bb_start [offset] |= backwards ? 2 : 1;
3469                         break;
3470                 case MonoShortInlineBrTarget:
3471                         offset = ((gint8 *)ip) [1];
3472                         ip += 2;
3473                         backwards = offset < 0;
3474                         offset += ip - header->code;
3475                         g_assert (offset >= 0 && offset < header->code_size);
3476                         is_bb_start [offset] |= backwards ? 2 : 1;
3477                         break;
3478                 case MonoInlineVar:
3479                         ip += 3;
3480                         break;
3481                 case MonoShortInlineVar:
3482                 case MonoShortInlineI:
3483                         ip += 2;
3484                         break;
3485                 case MonoInlineSwitch: {
3486                         guint32 n;
3487                         const unsigned char *next_ip;
3488                         ++ip;
3489                         n = read32 (ip);
3490                         ip += 4;
3491                         next_ip = ip + 4 * n;
3492                         for (i = 0; i < n; i++) {
3493                                 offset = read32 (ip);
3494                                 backwards = offset < 0;
3495                                 offset += next_ip - header->code;
3496                                 g_assert (offset >= 0 && offset < header->code_size);
3497                                 is_bb_start [offset] |= backwards ? 2 : 1;
3498                                 ip += 4;
3499                         }
3500                         break;
3501                 }
3502                 case MonoInlineR:
3503                 case MonoInlineI8:
3504                         ip += 9;
3505                         break;
3506                 default:
3507                         g_assert_not_reached ();
3508                 }
3509         }
3510         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3511
3512         /* the rest needs to be locked so it is only done once */
3513         mono_os_mutex_lock(&calc_section);
3514         if (runtime_method->transformed) {
3515                 mono_os_mutex_unlock(&calc_section);
3516                 g_free (is_bb_start);
3517                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3518                 return NULL;
3519         }
3520
3521         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3522         runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3523         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3524         offset = 0;
3525         for (i = 0; i < header->num_locals; ++i) {
3526                 size = mono_type_size (header->locals [i], &align);
3527                 offset += align - 1;
3528                 offset &= ~(align - 1);
3529                 runtime_method->local_offsets [i] = offset;
3530                 offset += size;
3531         }
3532         offset = (offset + 7) & ~7;
3533         runtime_method->locals_size = offset;
3534         g_assert (runtime_method->locals_size < 65536);
3535         offset = 0;
3536         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3537
3538         if (signature->hasthis) {
3539                 g_assert (!signature->pinvoke);
3540                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3541                 offset += align - 1;
3542                 offset &= ~(align - 1);
3543                 runtime_method->arg_offsets [0] = offset;
3544                 offset += size;
3545         }
3546
3547         for (i = 0; i < signature->param_count; ++i) {
3548                 if (signature->pinvoke) {
3549                         guint32 dummy;
3550                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3551                         align = 8;
3552                 }
3553                 else
3554                         size = mono_type_stack_size (signature->params [i], &align);
3555                 offset += align - 1;
3556                 offset &= ~(align - 1);
3557                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3558                 offset += size;
3559         }
3560         offset = (offset + 7) & ~7;
3561         runtime_method->args_size = offset;
3562         g_assert (runtime_method->args_size < 10000);
3563
3564         generate (method, runtime_method, is_bb_start, generic_context);
3565
3566         g_free (is_bb_start);
3567
3568         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3569         runtime_method->transformed = TRUE;
3570         mono_os_mutex_unlock(&calc_section);
3571
3572         return NULL;
3573 }
3574