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 void
 640 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)
 641 {
 642         MonoImage *image = method->klass->image;
 643         MonoMethodSignature *csignature;
 644         MonoError error;
 645         int virtual = *td->ip == CEE_CALLVIRT;
 646         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 647         int i;
 648         guint32 vt_stack_used = 0;
 649         guint32 vt_res_size = 0;
 650         int op = -1;
 651         int native = 0;
 652         int is_void = 0;
 653
 654         guint32 token = read32 (td->ip + 1);
 655
 656         if (target_method == NULL) {
 657                 if (calli) {
 658                         CHECK_STACK(td, 1);
 659                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 660                         --td->sp;
 661                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 662                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 663                         else
 664                                 csignature = mono_metadata_parse_signature (image, token);
 665
 666                         if (generic_context) {
 667                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 668                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 669                         }
 670
 671                         target_method = NULL;
 672                 } else {
 673                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 674                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 675                         else
 676                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 677                         csignature = mono_method_signature (target_method);
 678                         if (target_method->klass == mono_defaults.string_class) {
 679                                 if (target_method->name [0] == 'g') {
 680                                         if (strcmp (target_method->name, "get_Chars") == 0)
 681                                                 op = MINT_GETCHR;
 682                                         else if (strcmp (target_method->name, "get_Length") == 0)
 683                                                 op = MINT_STRLEN;
 684                                 }
 685                         } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 686                                 if (!strcmp (target_method->name, "get_Rank")) {
 687                                         op = MINT_ARRAY_RANK;
 688                                 } else if (!strcmp (target_method->name, "get_Length")) {
 689                                         op = MINT_LDLEN;
 690                                 } else if (!strcmp (target_method->name, "Address")) {
 691                                         op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 692                                 }
 693                         } else if (target_method && generic_context) {
 694                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 695                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 696                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 697                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 698                         }
 699                 }
 700         } else {
 701                 csignature = mono_method_signature (target_method);
 702         }
 703
 704         if (constrained_class) {
 705                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 706                         /* Use the corresponding method from the base type to avoid boxing */
 707                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 708                         g_assert (base_type);
 709                         constrained_class = mono_class_from_mono_type (base_type);
 710                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 711                         g_assert (target_method);
 712                 }
 713         }
 714
 715         if (constrained_class) {
 716                 mono_class_setup_vtable (constrained_class);
 717 #if DEBUG_INTERP
 718                 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);
 719 #endif
 720                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 721 #if DEBUG_INTERP
 722                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 723 #endif
 724                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 725                 mono_class_setup_vtable (target_method->klass);
 726
 727                 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)) {
 728                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 729                                 /* managed pointer on the stack, we need to deref that puppy */
 730                                 ADD_CODE (td, MINT_LDIND_I);
 731                                 ADD_CODE (td, csignature->param_count);
 732                         }
 733                         ADD_CODE (td, MINT_BOX);
 734                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 735                         ADD_CODE (td, csignature->param_count);
 736                 } else if (!constrained_class->valuetype) {
 737                         /* managed pointer on the stack, we need to deref that puppy */
 738                         ADD_CODE (td, MINT_LDIND_I);
 739                         ADD_CODE (td, csignature->param_count);
 740                 } else {
 741                         if (target_method->klass->valuetype) {
 742                                 /* Own method */
 743                         } else {
 744                                 /* Interface method */
 745                                 int ioffset, slot;
 746
 747                                 mono_class_setup_vtable (constrained_class);
 748                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 749                                 if (ioffset == -1)
 750                                         g_error ("type load error: constrained_class");
 751                                 slot = mono_method_get_vtable_slot (target_method);
 752                                 if (slot == -1)
 753                                         g_error ("type load error: target_method->klass");
 754                                 target_method = constrained_class->vtable [ioffset + slot];
 755
 756                                 if (target_method->klass == mono_defaults.enum_class) {
 757                                         if ((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                                 }
 766                         }
 767                         virtual = FALSE;
 768                 }
 769         }
 770
 771         if (target_method)
 772                 mono_class_init (target_method->klass);
 773
 774         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 775         if (!calli && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 776                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 777                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
 778                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 779                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 780
 781                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 782                         int offset;
 783                         if (mono_interp_traceopt)
 784                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 785                         for (i = csignature->param_count - 1; i >= 0; --i)
 786                                 store_arg (td, i + csignature->hasthis);
 787
 788                         ADD_CODE(td, MINT_BR_S);
 789                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 790                         ADD_CODE(td, offset);
 791                         if (!is_bb_start [td->ip + 5 - td->il_code])
 792                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 793                         td->ip += 5;
 794                         return;
 795                 } else {
 796                         /* mheader might not exist if this is a delegate invoc, etc */
 797                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 798                                 if (mono_interp_traceopt)
 799                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 800                                 for (i = 0; i < csignature->param_count; i++)
 801                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 802                                         ADD_CODE (td, 0);
 803                                 if (csignature->hasthis) {
 804                                         if (virtual)
 805                                                 ADD_CODE(td, MINT_CKNULL);
 806                                         ADD_CODE (td, MINT_POP);
 807                                         ADD_CODE (td, 0);
 808                                 }
 809                                 td->sp -= csignature->param_count + csignature->hasthis;
 810                                 td->ip += 5;
 811                                 return;
 812                         }
 813                 }
 814         }
 815         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 816                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 817                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 818                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 819                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 820         }
 821         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 822         td->sp -= csignature->param_count + !!csignature->hasthis;
 823         for (i = 0; i < csignature->param_count; ++i) {
 824                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 825                         gint32 size;
 826                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 827                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 828                                 size = mono_class_native_size (klass, NULL);
 829                         else
 830                                 size = mono_class_value_size (klass, NULL);
 831                         size = (size + 7) & ~7;
 832                         vt_stack_used += size;
 833                 }
 834         }
 835
 836         /* need to handle typedbyref ... */
 837         if (csignature->ret->type != MONO_TYPE_VOID) {
 838                 int mt = mint_type(csignature->ret);
 839                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 840                 if (mt == MINT_TYPE_VT) {
 841                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 842                                 vt_res_size = mono_class_native_size (klass, NULL);
 843                         else
 844                                 vt_res_size = mono_class_value_size (klass, NULL);
 845                         PUSH_VT(td, vt_res_size);
 846                 }
 847                 PUSH_TYPE(td, stack_type[mt], klass);
 848         } else
 849                 is_void = TRUE;
 850
 851         if (op >= 0) {
 852                 ADD_CODE (td, op);
 853 #if SIZEOF_VOID_P == 8
 854                 if (op == MINT_LDLEN)
 855                         ADD_CODE (td, MINT_CONV_I4_I8);
 856 #endif
 857                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 858                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 859                         ADD_CODE (td, 1 + target_method->klass->rank);
 860                 }
 861         } else {
 862                 if (calli)
 863                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 864                 else if (virtual)
 865                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 866                 else
 867                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 868
 869                 if (calli) {
 870                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 871                 } else {
 872                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 873                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 874                 }
 875         }
 876         td->ip += 5;
 877         if (vt_stack_used != 0 || vt_res_size != 0) {
 878                 ADD_CODE(td, MINT_VTRESULT);
 879                 ADD_CODE(td, vt_res_size);
 880                 WRITE32(td, &vt_stack_used);
 881                 td->vt_sp -= vt_stack_used;
 882         }
 883 }
 884
 885 static void
 886 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
 887 {
 888         MonoMethodHeader *header = mono_method_get_header (method);
 889         MonoMethodSignature *signature = mono_method_signature (method);
 890         MonoImage *image = method->klass->image;
 891         MonoDomain *domain = mono_domain_get ();
 892         MonoClass *constrained_class = NULL;
 893         MonoError error;
 894         int offset, mt, i, i32;
 895         gboolean readonly = FALSE;
 896         MonoClass *klass;
 897         MonoClassField *field;
 898         const unsigned char *end;
 899         int new_in_start_offset;
 900         int body_start_offset;
 901         int target;
 902         guint32 token;
 903         TransformData td;
 904         int generating_code = 1;
 905
 906         memset(&td, 0, sizeof(td));
 907         td.method = method;
 908         td.rtm = rtm;
 909         td.is_bb_start = is_bb_start;
 910         td.il_code = header->code;
 911         td.code_size = header->code_size;
 912         td.header = header;
 913         td.max_code_size = td.code_size;
 914         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 915         td.new_code_end = td.new_code + td.max_code_size;
 916         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 917         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 918         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 919         td.stack_height = g_malloc(header->code_size * sizeof(int));
 920         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 921         td.n_data_items = 0;
 922         td.max_data_items = 0;
 923         td.data_items = NULL;
 924         td.data_hash = g_hash_table_new (NULL, NULL);
 925         rtm->data_items = td.data_items;
 926         for (i = 0; i < header->code_size; i++) {
 927                 td.forward_refs [i] = -1;
 928                 td.stack_height [i] = -1;
 929         }
 930         td.new_ip = td.new_code;
 931         td.last_new_ip = NULL;
 932
 933         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
 934         td.sp = td.stack;
 935         td.max_stack_height = 0;
 936
 937         for (i = 0; i < header->num_clauses; i++) {
 938                 MonoExceptionClause *c = header->clauses + i;
 939                 td.stack_height [c->handler_offset] = 0;
 940                 td.vt_stack_size [c->handler_offset] = 0;
 941                 td.is_bb_start [c->handler_offset] = 1;
 942
 943                 td.stack_height [c->handler_offset] = 1;
 944                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 945                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 946                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 947         }
 948
 949         td.ip = header->code;
 950         end = td.ip + header->code_size;
 951
 952         if (mono_interp_traceopt) {
 953                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 954                 char *name = mono_method_full_name (method, TRUE);
 955                 g_print ("Method %s, original code:\n", name);
 956                 g_print ("%s\n", tmp);
 957                 g_free (tmp);
 958                 g_free (name);
 959         }
 960
 961         if (signature->hasthis)
 962                 store_inarg (&td, 0);
 963         for (i = 0; i < signature->param_count; i++)
 964                 store_inarg (&td, i + !!signature->hasthis);
 965
 966         body_start_offset = td.new_ip - td.new_code;
 967
 968         for (i = 0; i < header->num_locals; i++) {
 969                 int mt = mint_type(header->locals [i]);
 970                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
 971                         ADD_CODE(&td, MINT_INITLOCALS);
 972                         break;
 973                 }
 974         }
 975
 976         while (td.ip < end) {
 977                 int in_offset;
 978
 979                 g_assert (td.sp >= td.stack);
 980                 g_assert (td.vt_sp < 0x10000000);
 981                 in_offset = td.ip - header->code;
 982                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
 983                 new_in_start_offset = td.new_ip - td.new_code;
 984                 td.in_start = td.ip;
 985                 while (td.forward_refs [in_offset] >= 0) {
 986                         int j = td.forward_refs [in_offset];
 987                         int slot;
 988                         td.forward_refs [in_offset] = td.forward_refs [j];
 989                         if (td.in_offsets [j] < 0) {
 990                                 int old_switch_offset = -td.in_offsets [j];
 991                                 int new_switch_offset = td.in_offsets [old_switch_offset];
 992                                 int switch_case = (j - old_switch_offset - 5) / 4;
 993                                 int n_cases = read32 (header->code + old_switch_offset + 1);
 994                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
 995                                 slot = new_switch_offset + 3 + 2 * switch_case;
 996                                 td.new_code [slot] = * (unsigned short *)(&offset);
 997                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
 998                         } else {
 999                                 int op = td.new_code [td.in_offsets [j]];
1000                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1001                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1002                                         g_assert (offset <= 32767);
1003                                         slot = td.in_offsets [j] + 1;
1004                                         td.new_code [slot] = offset;
1005                                 } else {
1006                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1007                                         slot = td.in_offsets [j] + 1;
1008                                         td.new_code [slot] = * (unsigned short *)(&offset);
1009                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1010                                 }
1011                         }
1012                 }
1013                 if (td.stack_height [in_offset] >= 0) {
1014                         g_assert (is_bb_start [in_offset]);
1015                         if (td.stack_height [in_offset] > 0)
1016                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1017                         td.sp = td.stack + td.stack_height [in_offset];
1018                         td.vt_sp = td.vt_stack_size [in_offset];
1019                 }
1020                 if (is_bb_start [in_offset]) {
1021                         generating_code = 1;
1022                 }
1023                 if (!generating_code) {
1024                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1025                                 ++td.ip;
1026                         continue;
1027                 }
1028                 if (mono_interp_traceopt > 1) {
1029                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1030                                 td.ip - td.il_code,
1031                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1032                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1033                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1034                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1035                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1036                                 (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) : "",
1037                                 td.vt_sp, td.max_vt_sp);
1038                 }
1039                 switch (*td.ip) {
1040                 case CEE_NOP:
1041                         /* lose it */
1042                         ++td.ip;
1043                         break;
1044                 case CEE_BREAK:
1045                         SIMPLE_OP(td, MINT_BREAK);
1046                         break;
1047                 case CEE_LDARG_0:
1048                 case CEE_LDARG_1:
1049                 case CEE_LDARG_2:
1050                 case CEE_LDARG_3:
1051                         load_arg (&td, *td.ip - CEE_LDARG_0);
1052                         ++td.ip;
1053                         break;
1054                 case CEE_LDLOC_0:
1055                 case CEE_LDLOC_1:
1056                 case CEE_LDLOC_2:
1057                 case CEE_LDLOC_3:
1058                         load_local (&td, *td.ip - CEE_LDLOC_0);
1059                         ++td.ip;
1060                         break;
1061                 case CEE_STLOC_0:
1062                 case CEE_STLOC_1:
1063                 case CEE_STLOC_2:
1064                 case CEE_STLOC_3:
1065                         store_local (&td, *td.ip - CEE_STLOC_0);
1066                         ++td.ip;
1067                         break;
1068                 case CEE_LDARG_S:
1069                         load_arg (&td, ((guint8 *)td.ip)[1]);
1070                         td.ip += 2;
1071                         break;
1072                 case CEE_LDARGA_S: {
1073                         /* NOTE: n includes this */
1074                         int n = ((guint8 *) td.ip) [1];
1075                         ADD_CODE (&td, MINT_LDARGA);
1076                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1077                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1078                         td.ip += 2;
1079                         break;
1080                 }
1081                 case CEE_STARG_S:
1082                         store_arg (&td, ((guint8 *)td.ip)[1]);
1083                         td.ip += 2;
1084                         break;
1085                 case CEE_LDLOC_S:
1086                         load_local (&td, ((guint8 *)td.ip)[1]);
1087                         td.ip += 2;
1088                         break;
1089                 case CEE_LDLOCA_S:
1090                         ADD_CODE(&td, MINT_LDLOCA_S);
1091                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1092                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1093                         td.ip += 2;
1094                         break;
1095                 case CEE_STLOC_S:
1096                         store_local (&td, ((guint8 *)td.ip)[1]);
1097                         td.ip += 2;
1098                         break;
1099                 case CEE_LDNULL:
1100                         SIMPLE_OP(td, MINT_LDNULL);
1101                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1102                         break;
1103                 case CEE_LDC_I4_M1:
1104                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1105                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1106                         break;
1107                 case CEE_LDC_I4_0:
1108                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1109                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1110                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1111                                 td.ip += 2;
1112                         } else {
1113                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1114                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1115                         }
1116                         break;
1117                 case CEE_LDC_I4_1:
1118                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1119                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1120                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1121                                 td.ip += 2;
1122                         } else {
1123                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1124                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1125                         }
1126                         break;
1127                 case CEE_LDC_I4_2:
1128                 case CEE_LDC_I4_3:
1129                 case CEE_LDC_I4_4:
1130                 case CEE_LDC_I4_5:
1131                 case CEE_LDC_I4_6:
1132                 case CEE_LDC_I4_7:
1133                 case CEE_LDC_I4_8:
1134                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1135                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1136                         break;
1137                 case CEE_LDC_I4_S:
1138                         ADD_CODE(&td, MINT_LDC_I4_S);
1139                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1140                         td.ip += 2;
1141                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1142                         break;
1143                 case CEE_LDC_I4:
1144                         i32 = read32 (td.ip + 1);
1145                         ADD_CODE(&td, MINT_LDC_I4);
1146                         WRITE32(&td, &i32);
1147                         td.ip += 5;
1148                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1149                         break;
1150                 case CEE_LDC_I8: {
1151                         gint64 val = read64 (td.ip + 1);
1152                         ADD_CODE(&td, MINT_LDC_I8);
1153                         WRITE64(&td, &val);
1154                         td.ip += 9;
1155                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1156                         break;
1157                 }
1158                 case CEE_LDC_R4: {
1159                         float val;
1160                         readr4 (td.ip + 1, &val);
1161                         ADD_CODE(&td, MINT_LDC_R4);
1162                         WRITE32(&td, &val);
1163                         td.ip += 5;
1164                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1165                         break;
1166                 }
1167                 case CEE_LDC_R8: {
1168                         double val;
1169                         readr8 (td.ip + 1, &val);
1170                         ADD_CODE(&td, MINT_LDC_R8);
1171                         WRITE64(&td, &val);
1172                         td.ip += 9;
1173                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1174                         break;
1175                 }
1176                 case CEE_DUP: {
1177                         int type = td.sp [-1].type;
1178                         MonoClass *klass = td.sp [-1].klass;
1179                         if (td.sp [-1].type == STACK_TYPE_VT) {
1180                                 gint32 size = mono_class_value_size (klass, NULL);
1181                                 PUSH_VT(&td, size);
1182                                 ADD_CODE(&td, MINT_DUP_VT);
1183                                 WRITE32(&td, &size);
1184                                 td.ip ++;
1185                         } else
1186                                 SIMPLE_OP(td, MINT_DUP);
1187                         PUSH_TYPE(&td, type, klass);
1188                         break;
1189                 }
1190                 case CEE_POP:
1191                         CHECK_STACK(&td, 1);
1192                         SIMPLE_OP(td, MINT_POP);
1193                         ADD_CODE (&td, 0);
1194                         if (td.sp [-1].type == STACK_TYPE_VT) {
1195                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1196                                 size = (size + 7) & ~7;
1197                                 ADD_CODE(&td, MINT_VTRESULT);
1198                                 ADD_CODE(&td, 0);
1199                                 WRITE32(&td, &size);
1200                                 td.vt_sp -= size;
1201                         }
1202                         --td.sp;
1203                         break;
1204                 case CEE_JMP: {
1205                         MonoMethod *m;
1206                         if (td.sp > td.stack)
1207                                 g_warning ("CEE_JMP: stack must be empty");
1208                         token = read32 (td.ip + 1);
1209                         m = mono_get_method_full (image, token, NULL, generic_context);
1210                         ADD_CODE (&td, MINT_JMP);
1211                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1212                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1213                         td.ip += 5;
1214                         break;
1215                 }
1216                 case CEE_CALLVIRT: /* Fall through */
1217                 case CEE_CALLI:    /* Fall through */
1218                 case CEE_CALL: {
1219                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1220                         constrained_class = NULL;
1221                         readonly = FALSE;
1222                         break;
1223                 }
1224                 case CEE_RET: {
1225                         int vt_size = 0;
1226                         if (signature->ret->type != MONO_TYPE_VOID) {
1227                                 --td.sp;
1228                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1229                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1230                                         vt_size = mono_class_value_size (klass, NULL);
1231                                         vt_size = (vt_size + 7) & ~7;
1232                                 }
1233                         }
1234                         if (td.sp > td.stack)
1235                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1236                         if (td.vt_sp != vt_size)
1237                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1238                         if (vt_size == 0)
1239                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1240                         else {
1241                                 ADD_CODE(&td, MINT_RET_VT);
1242                                 WRITE32(&td, &vt_size);
1243                                 ++td.ip;
1244                         }
1245                         generating_code = 0;
1246                         break;
1247                 }
1248                 case CEE_BR:
1249                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1250                         td.ip += 5;
1251                         generating_code = 0;
1252                         break;
1253                 case CEE_BR_S:
1254                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1255                         td.ip += 2;
1256                         generating_code = 0;
1257                         break;
1258                 case CEE_BRFALSE:
1259                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1260                         td.ip += 5;
1261                         break;
1262                 case CEE_BRFALSE_S:
1263                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1264                         td.ip += 2;
1265                         break;
1266                 case CEE_BRTRUE:
1267                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1268                         td.ip += 5;
1269                         break;
1270                 case CEE_BRTRUE_S:
1271                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1272                         td.ip += 2;
1273                         break;
1274                 case CEE_BEQ:
1275                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1276                         td.ip += 5;
1277                         break;
1278                 case CEE_BEQ_S:
1279                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1280                         td.ip += 2;
1281                         break;
1282                 case CEE_BGE:
1283                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1284                         td.ip += 5;
1285                         break;
1286                 case CEE_BGE_S:
1287                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1288                         td.ip += 2;
1289                         break;
1290                 case CEE_BGT:
1291                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1292                         td.ip += 5;
1293                         break;
1294                 case CEE_BGT_S:
1295                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1296                         td.ip += 2;
1297                         break;
1298                 case CEE_BLT:
1299                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1300                         td.ip += 5;
1301                         break;
1302                 case CEE_BLT_S:
1303                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1304                         td.ip += 2;
1305                         break;
1306                 case CEE_BLE:
1307                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1308                         td.ip += 5;
1309                         break;
1310                 case CEE_BLE_S:
1311                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1312                         td.ip += 2;
1313                         break;
1314                 case CEE_BNE_UN:
1315                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1316                         td.ip += 5;
1317                         break;
1318                 case CEE_BNE_UN_S:
1319                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1320                         td.ip += 2;
1321                         break;
1322                 case CEE_BGE_UN:
1323                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1324                         td.ip += 5;
1325                         break;
1326                 case CEE_BGE_UN_S:
1327                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1328                         td.ip += 2;
1329                         break;
1330                 case CEE_BGT_UN:
1331                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1332                         td.ip += 5;
1333                         break;
1334                 case CEE_BGT_UN_S:
1335                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1336                         td.ip += 2;
1337                         break;
1338                 case CEE_BLE_UN:
1339                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1340                         td.ip += 5;
1341                         break;
1342                 case CEE_BLE_UN_S:
1343                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1344                         td.ip += 2;
1345                         break;
1346                 case CEE_BLT_UN:
1347                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1348                         td.ip += 5;
1349                         break;
1350                 case CEE_BLT_UN_S:
1351                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1352                         td.ip += 2;
1353                         break;
1354                 case CEE_SWITCH: {
1355                         guint32 n;
1356                         const unsigned char *next_ip;
1357                         const unsigned char *base_ip = td.ip;
1358                         unsigned short *next_new_ip;
1359                         ++td.ip;
1360                         n = read32 (td.ip);
1361                         ADD_CODE (&td, MINT_SWITCH);
1362                         WRITE32 (&td, &n);
1363                         td.ip += 4;
1364                         next_ip = td.ip + n * 4;
1365                         next_new_ip = td.new_ip + n * 2;
1366                         --td.sp;
1367                         int stack_height = td.sp - td.stack;
1368                         for (i = 0; i < n; i++) {
1369                                 offset = read32 (td.ip);
1370                                 target = next_ip - td.il_code + offset;
1371                                 if (offset < 0) {
1372 #if DEBUG_INTERP
1373                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1374                                                 g_warning ("SWITCH with back branch and non-empty stack");
1375 #endif
1376                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1377                                 } else {
1378                                         td.stack_height [target] = stack_height;
1379                                         td.vt_stack_size [target] = td.vt_sp;
1380                                         if (stack_height > 0)
1381                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1382                                         int prev = td.forward_refs [target];
1383                                         td.forward_refs [td.ip - td.il_code] = prev;
1384                                         td.forward_refs [target] = td.ip - td.il_code;
1385                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1386                                 }
1387                                 WRITE32 (&td, &target);
1388                                 td.ip += 4;
1389                         }
1390                         break;
1391                 }
1392                 case CEE_LDIND_I1:
1393                         CHECK_STACK (&td, 1);
1394                         SIMPLE_OP (td, MINT_LDIND_I1);
1395                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1396                         break;
1397                 case CEE_LDIND_U1:
1398                         CHECK_STACK (&td, 1);
1399                         SIMPLE_OP (td, MINT_LDIND_U1);
1400                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1401                         break;
1402                 case CEE_LDIND_I2:
1403                         CHECK_STACK (&td, 1);
1404                         SIMPLE_OP (td, MINT_LDIND_I2);
1405                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1406                         break;
1407                 case CEE_LDIND_U2:
1408                         CHECK_STACK (&td, 1);
1409                         SIMPLE_OP (td, MINT_LDIND_U2);
1410                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1411                         break;
1412                 case CEE_LDIND_I4:
1413                         CHECK_STACK (&td, 1);
1414                         SIMPLE_OP (td, MINT_LDIND_I4);
1415                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1416                         break;
1417                 case CEE_LDIND_U4:
1418                         CHECK_STACK (&td, 1);
1419                         SIMPLE_OP (td, MINT_LDIND_U4);
1420                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1421                         break;
1422                 case CEE_LDIND_I8:
1423                         CHECK_STACK (&td, 1);
1424                         SIMPLE_OP (td, MINT_LDIND_I8);
1425                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1426                         break;
1427                 case CEE_LDIND_I:
1428                         CHECK_STACK (&td, 1);
1429                         SIMPLE_OP (td, MINT_LDIND_I);
1430                         ADD_CODE (&td, 0);
1431                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1432                         break;
1433                 case CEE_LDIND_R4:
1434                         CHECK_STACK (&td, 1);
1435                         SIMPLE_OP (td, MINT_LDIND_R4);
1436                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1437                         break;
1438                 case CEE_LDIND_R8:
1439                         CHECK_STACK (&td, 1);
1440                         SIMPLE_OP (td, MINT_LDIND_R8);
1441                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1442                         break;
1443                 case CEE_LDIND_REF:
1444                         CHECK_STACK (&td, 1);
1445                         SIMPLE_OP (td, MINT_LDIND_REF);
1446                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1447                         break;
1448                 case CEE_STIND_REF:
1449                         CHECK_STACK (&td, 2);
1450                         SIMPLE_OP (td, MINT_STIND_REF);
1451                         td.sp -= 2;
1452                         break;
1453                 case CEE_STIND_I1:
1454                         CHECK_STACK (&td, 2);
1455                         SIMPLE_OP (td, MINT_STIND_I1);
1456                         td.sp -= 2;
1457                         break;
1458                 case CEE_STIND_I2:
1459                         CHECK_STACK (&td, 2);
1460                         SIMPLE_OP (td, MINT_STIND_I2);
1461                         td.sp -= 2;
1462                         break;
1463                 case CEE_STIND_I4:
1464                         CHECK_STACK (&td, 2);
1465                         SIMPLE_OP (td, MINT_STIND_I4);
1466                         td.sp -= 2;
1467                         break;
1468                 case CEE_STIND_I:
1469                         CHECK_STACK (&td, 2);
1470                         SIMPLE_OP (td, MINT_STIND_I);
1471                         td.sp -= 2;
1472                         break;
1473                 case CEE_STIND_I8:
1474                         CHECK_STACK (&td, 2);
1475                         SIMPLE_OP (td, MINT_STIND_I8);
1476                         td.sp -= 2;
1477                         break;
1478                 case CEE_STIND_R4:
1479                         CHECK_STACK (&td, 2);
1480                         SIMPLE_OP (td, MINT_STIND_R4);
1481                         td.sp -= 2;
1482                         break;
1483                 case CEE_STIND_R8:
1484                         CHECK_STACK (&td, 2);
1485                         SIMPLE_OP (td, MINT_STIND_R8);
1486                         td.sp -= 2;
1487                         break;
1488                 case CEE_ADD:
1489                         binary_arith_op(&td, MINT_ADD_I4);
1490                         ++td.ip;
1491                         break;
1492                 case CEE_SUB:
1493                         binary_arith_op(&td, MINT_SUB_I4);
1494                         ++td.ip;
1495                         break;
1496                 case CEE_MUL:
1497                         binary_arith_op(&td, MINT_MUL_I4);
1498                         ++td.ip;
1499                         break;
1500                 case CEE_DIV:
1501                         binary_arith_op(&td, MINT_DIV_I4);
1502                         ++td.ip;
1503                         break;
1504                 case CEE_DIV_UN:
1505                         binary_arith_op(&td, MINT_DIV_UN_I4);
1506                         ++td.ip;
1507                         break;
1508                 case CEE_REM:
1509                         binary_int_op (&td, MINT_REM_I4);
1510                         ++td.ip;
1511                         break;
1512                 case CEE_REM_UN:
1513                         binary_int_op (&td, MINT_REM_UN_I4);
1514                         ++td.ip;
1515                         break;
1516                 case CEE_AND:
1517                         binary_int_op (&td, MINT_AND_I4);
1518                         ++td.ip;
1519                         break;
1520                 case CEE_OR:
1521                         binary_int_op (&td, MINT_OR_I4);
1522                         ++td.ip;
1523                         break;
1524                 case CEE_XOR:
1525                         binary_int_op (&td, MINT_XOR_I4);
1526                         ++td.ip;
1527                         break;
1528                 case CEE_SHL:
1529                         shift_op (&td, MINT_SHL_I4);
1530                         ++td.ip;
1531                         break;
1532                 case CEE_SHR:
1533                         shift_op (&td, MINT_SHR_I4);
1534                         ++td.ip;
1535                         break;
1536                 case CEE_SHR_UN:
1537                         shift_op (&td, MINT_SHR_UN_I4);
1538                         ++td.ip;
1539                         break;
1540                 case CEE_NEG:
1541                         unary_arith_op (&td, MINT_NEG_I4);
1542                         ++td.ip;
1543                         break;
1544                 case CEE_NOT:
1545                         unary_arith_op (&td, MINT_NOT_I4);
1546                         ++td.ip;
1547                         break;
1548                 case CEE_CONV_U1:
1549                         CHECK_STACK (&td, 1);
1550                         switch (td.sp [-1].type) {
1551                         case STACK_TYPE_R8:
1552                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1553                                 break;
1554                         case STACK_TYPE_I4:
1555                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1556                                 break;
1557                         case STACK_TYPE_I8:
1558                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1559                                 break;
1560                         default:
1561                                 g_assert_not_reached ();
1562                         }
1563                         ++td.ip;
1564                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1565                         break;
1566                 case CEE_CONV_I1:
1567                         CHECK_STACK (&td, 1);
1568                         switch (td.sp [-1].type) {
1569                         case STACK_TYPE_R8:
1570                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1571                                 break;
1572                         case STACK_TYPE_I4:
1573                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1574                                 break;
1575                         case STACK_TYPE_I8:
1576                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1577                                 break;
1578                         default:
1579                                 g_assert_not_reached ();
1580                         }
1581                         ++td.ip;
1582                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1583                         break;
1584                 case CEE_CONV_U2:
1585                         CHECK_STACK (&td, 1);
1586                         switch (td.sp [-1].type) {
1587                         case STACK_TYPE_R8:
1588                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1589                                 break;
1590                         case STACK_TYPE_I4:
1591                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1592                                 break;
1593                         case STACK_TYPE_I8:
1594                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1595                                 break;
1596                         default:
1597                                 g_assert_not_reached ();
1598                         }
1599                         ++td.ip;
1600                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1601                         break;
1602                 case CEE_CONV_I2:
1603                         CHECK_STACK (&td, 1);
1604                         switch (td.sp [-1].type) {
1605                         case STACK_TYPE_R8:
1606                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1607                                 break;
1608                         case STACK_TYPE_I4:
1609                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1610                                 break;
1611                         case STACK_TYPE_I8:
1612                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1613                                 break;
1614                         default:
1615                                 g_assert_not_reached ();
1616                         }
1617                         ++td.ip;
1618                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1619                         break;
1620                 case CEE_CONV_U:
1621                         CHECK_STACK (&td, 1);
1622                         switch (td.sp [-1].type) {
1623                         case STACK_TYPE_R8:
1624 #if SIZEOF_VOID_P == 4
1625                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1626 #else
1627                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1628 #endif
1629                                 break;
1630                         case STACK_TYPE_I4:
1631 #if SIZEOF_VOID_P == 8
1632                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1633 #endif
1634                                 break;
1635                         case STACK_TYPE_I8:
1636 #if SIZEOF_VOID_P == 4
1637                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1638 #endif
1639                                 break;
1640                         case STACK_TYPE_MP:
1641                                 break;
1642                         default:
1643                                 g_assert_not_reached ();
1644                         }
1645                         ++td.ip;
1646                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1647                         break;
1648                 case CEE_CONV_I:
1649                         CHECK_STACK (&td, 1);
1650                         switch (td.sp [-1].type) {
1651                         case STACK_TYPE_R8:
1652 #if SIZEOF_VOID_P == 8
1653                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1654 #else
1655                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1656 #endif
1657                                 break;
1658                         case STACK_TYPE_I4:
1659 #if SIZEOF_VOID_P == 8
1660                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1661 #endif
1662                                 break;
1663                         case STACK_TYPE_O:
1664                                 break;
1665                         case STACK_TYPE_MP:
1666                                 break;
1667                         case STACK_TYPE_I8:
1668 #if SIZEOF_VOID_P == 4
1669                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1670 #endif
1671                                 break;
1672                         default:
1673                                 g_assert_not_reached ();
1674                         }
1675                         ++td.ip;
1676                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1677                         break;
1678                 case CEE_CONV_U4:
1679                         CHECK_STACK (&td, 1);
1680                         switch (td.sp [-1].type) {
1681                         case STACK_TYPE_R8:
1682                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1683                                 break;
1684                         case STACK_TYPE_I4:
1685                                 break;
1686                         case STACK_TYPE_I8:
1687                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1688                                 break;
1689                         case STACK_TYPE_MP:
1690 #if SIZEOF_VOID_P == 8
1691                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1692 #endif
1693                                 break;
1694                         default:
1695                                 g_assert_not_reached ();
1696                         }
1697                         ++td.ip;
1698                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1699                         break;
1700                 case CEE_CONV_I4:
1701                         CHECK_STACK (&td, 1);
1702                         switch (td.sp [-1].type) {
1703                         case STACK_TYPE_R8:
1704                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1705                                 break;
1706                         case STACK_TYPE_I4:
1707                                 break;
1708                         case STACK_TYPE_I8:
1709                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1710                                 break;
1711                         case STACK_TYPE_MP:
1712 #if SIZEOF_VOID_P == 8
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_I4);
1721                         break;
1722                 case CEE_CONV_I8:
1723                         CHECK_STACK (&td, 1);
1724                         switch (td.sp [-1].type) {
1725                         case STACK_TYPE_R8:
1726                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1727                                 break;
1728                         case STACK_TYPE_I4:
1729                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1730                                 break;
1731                         case STACK_TYPE_I8:
1732                                 break;
1733                         case STACK_TYPE_MP:
1734 #if SIZEOF_VOID_P == 4
1735                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1736 #endif
1737                                 break;
1738                         default:
1739                                 g_assert_not_reached ();
1740                         }
1741                         ++td.ip;
1742                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1743                         break;
1744                 case CEE_CONV_R4:
1745                         CHECK_STACK (&td, 1);
1746                         switch (td.sp [-1].type) {
1747                         case STACK_TYPE_R8:
1748                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1749                                 break;
1750                         case STACK_TYPE_I8:
1751                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1752                                 break;
1753                         case STACK_TYPE_I4:
1754                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1755                                 break;
1756                         default:
1757                                 g_assert_not_reached ();
1758                         }
1759                         ++td.ip;
1760                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1761                         break;
1762                 case CEE_CONV_R8:
1763                         CHECK_STACK (&td, 1);
1764                         switch (td.sp [-1].type) {
1765                         case STACK_TYPE_I4:
1766                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1767                                 break;
1768                         case STACK_TYPE_I8:
1769                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1770                                 break;
1771                         case STACK_TYPE_R8:
1772                                 break;
1773                         default:
1774                                 g_assert_not_reached ();
1775                         }
1776                         ++td.ip;
1777                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1778                         break;
1779                 case CEE_CONV_U8:
1780                         CHECK_STACK (&td, 1);
1781                         switch (td.sp [-1].type) {
1782                         case STACK_TYPE_I4:
1783                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1784                                 break;
1785                         case STACK_TYPE_I8:
1786                                 break;
1787                         case STACK_TYPE_R8:
1788                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1789                                 break;
1790                         case STACK_TYPE_MP:
1791 #if SIZEOF_VOID_P == 4
1792                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1793 #endif
1794                                 break;
1795                         default:
1796                                 g_assert_not_reached ();
1797                         }
1798                         ++td.ip;
1799                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1800                         break;
1801                 case CEE_CPOBJ: {
1802                         CHECK_STACK (&td, 2);
1803
1804                         token = read32 (td.ip + 1);
1805                         klass = mono_class_get_full (image, token, generic_context);
1806
1807                         if (klass->valuetype) {
1808                                 ADD_CODE (&td, MINT_CPOBJ);
1809                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1810                         } else {
1811                                 ADD_CODE (&td, MINT_LDIND_REF);
1812                                 ADD_CODE (&td, MINT_STIND_REF);
1813                         }
1814                         td.ip += 5;
1815                         td.sp -= 2;
1816                         break;
1817                 }
1818                 case CEE_LDOBJ: {
1819                         int size;
1820                         CHECK_STACK (&td, 1);
1821
1822                         token = read32 (td.ip + 1);
1823
1824                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1825                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1826                         else
1827                                 klass = mono_class_get_full (image, token, generic_context);
1828
1829                         ADD_CODE(&td, MINT_LDOBJ);
1830                         ADD_CODE(&td, get_data_item_index(&td, klass));
1831                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1832                                 size = mono_class_value_size (klass, NULL);
1833                                 PUSH_VT(&td, size);
1834                         }
1835                         td.ip += 5;
1836                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1837                         break;
1838                 }
1839                 case CEE_LDSTR: {
1840                         MonoString *s;
1841                         token = mono_metadata_token_index (read32 (td.ip + 1));
1842                         td.ip += 5;
1843                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1844                                 s = mono_string_new_wrapper(
1845                                         mono_method_get_wrapper_data (method, token));
1846                         }
1847                         else
1848                                 s = mono_ldstr (domain, image, token);
1849                         ADD_CODE(&td, MINT_LDSTR);
1850                         ADD_CODE(&td, get_data_item_index (&td, s));
1851                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1852                         break;
1853                 }
1854                 case CEE_NEWOBJ: {
1855                         MonoMethod *m;
1856                         MonoMethodSignature *csignature;
1857                         guint32 vt_stack_used = 0;
1858                         guint32 vt_res_size = 0;
1859
1860                         td.ip++;
1861                         token = read32 (td.ip);
1862                         td.ip += 4;
1863
1864                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1865                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1866                         else
1867                                 m = mono_get_method_full (image, token, NULL, generic_context);
1868
1869                         csignature = mono_method_signature (m);
1870                         klass = m->klass;
1871                         td.sp -= csignature->param_count;
1872                         ADD_CODE(&td, MINT_NEWOBJ);
1873                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1874                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1875
1876                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1877                                 vt_res_size = mono_class_value_size (klass, NULL);
1878                                 PUSH_VT (&td, vt_res_size);
1879                         }
1880                         for (i = 0; i < csignature->param_count; ++i) {
1881                                 int mt = mint_type(csignature->params [i]);
1882                                 if (mt == MINT_TYPE_VT) {
1883                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1884                                         gint32 size = mono_class_value_size (k, NULL);
1885                                         size = (size + 7) & ~7;
1886                                         vt_stack_used += size;
1887                                 }
1888                         }
1889                         if (vt_stack_used != 0 || vt_res_size != 0) {
1890                                 ADD_CODE(&td, MINT_VTRESULT);
1891                                 ADD_CODE(&td, vt_res_size);
1892                                 WRITE32(&td, &vt_stack_used);
1893                                 td.vt_sp -= vt_stack_used;
1894                         }
1895                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1896                         break;
1897                 }
1898                 case CEE_CASTCLASS:
1899                         CHECK_STACK (&td, 1);
1900                         token = read32 (td.ip + 1);
1901                         klass = mono_class_get_full (image, token, generic_context);
1902                         ADD_CODE(&td, MINT_CASTCLASS);
1903                         ADD_CODE(&td, get_data_item_index (&td, klass));
1904                         td.sp [-1].klass = klass;
1905                         td.ip += 5;
1906                         break;
1907                 case CEE_ISINST:
1908                         CHECK_STACK (&td, 1);
1909                         token = read32 (td.ip + 1);
1910                         klass = mono_class_get_full (image, token, generic_context);
1911                         ADD_CODE(&td, MINT_ISINST);
1912                         ADD_CODE(&td, get_data_item_index (&td, klass));
1913                         td.ip += 5;
1914                         break;
1915                 case CEE_CONV_R_UN:
1916                         switch (td.sp [-1].type) {
1917                         case STACK_TYPE_R8:
1918                                 break;
1919                         case STACK_TYPE_I8:
1920                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1921                                 break;
1922                         case STACK_TYPE_I4:
1923                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1924                                 break;
1925                         default:
1926                                 g_assert_not_reached ();
1927                         }
1928                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1929                         ++td.ip;
1930                         break;
1931                 case CEE_UNBOX:
1932                         CHECK_STACK (&td, 1);
1933                         token = read32 (td.ip + 1);
1934
1935                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1936                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1937                         else
1938                                 klass = mono_class_get_full (image, token, generic_context);
1939
1940                         if (mono_class_is_nullable (klass)) {
1941                                 g_error ("cee_unbox: implement Nullable");
1942                         }
1943
1944                         ADD_CODE(&td, MINT_UNBOX);
1945                         ADD_CODE(&td, get_data_item_index (&td, klass));
1946                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1947                         td.ip += 5;
1948                         break;
1949                 case CEE_UNBOX_ANY:
1950                         CHECK_STACK (&td, 1);
1951                         token = read32 (td.ip + 1);
1952
1953                         g_assert (method->wrapper_type == MONO_WRAPPER_NONE);
1954                         klass = mono_class_get_full (image, token, generic_context);
1955
1956                         if (mini_type_is_reference (&klass->byval_arg)) {
1957                                 ADD_CODE (&td, MINT_CASTCLASS);
1958                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1959                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1960                                 td.ip += 5;
1961                         } else if (mono_class_is_nullable (klass)) {
1962                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
1963                                 /* td.ip is incremented by interp_transform_call */
1964                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
1965                         } else {
1966                                 int mt = mint_type (&klass->byval_arg);
1967                                 ADD_CODE (&td, MINT_UNBOX);
1968                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1969
1970                                 ADD_CODE (&td, MINT_LDOBJ);
1971                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1972                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1973
1974                                 if (mt == MINT_TYPE_VT) {
1975                                         int size = mono_class_value_size (klass, NULL);
1976                                         PUSH_VT (&td, size);
1977                                 }
1978                                 td.ip += 5;
1979                         }
1980
1981                         break;
1982                 case CEE_THROW:
1983                         CHECK_STACK (&td, 1);
1984                         SIMPLE_OP (td, MINT_THROW);
1985                         --td.sp;
1986                         generating_code = 0;
1987                         break;
1988                 case CEE_LDFLDA:
1989                         CHECK_STACK (&td, 1);
1990                         token = read32 (td.ip + 1);
1991                         field = mono_field_from_token (image, token, &klass, generic_context);
1992                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
1993                         mono_class_init (klass);
1994                         if (is_static) {
1995                                 ADD_CODE (&td, MINT_POP);
1996                                 ADD_CODE (&td, 0);
1997                                 ADD_CODE (&td, MINT_LDSFLDA);
1998                                 ADD_CODE (&td, get_data_item_index (&td, field));
1999                         } else {
2000                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2001                                         ADD_CODE (&td, MINT_LDFLDA);
2002                                 } else {
2003                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2004                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2005                                 }
2006                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2007                         }
2008                         td.ip += 5;
2009                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2010                         break;
2011                 case CEE_LDFLD: {
2012                         CHECK_STACK (&td, 1);
2013                         token = read32 (td.ip + 1);
2014                         field = mono_field_from_token (image, token, &klass, generic_context);
2015                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2016                         mono_class_init (klass);
2017
2018                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2019                         mt = mint_type (&field_klass->byval_arg);
2020                         if (klass->marshalbyref) {
2021                                 g_assert (!is_static);
2022                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2023                                 ADD_CODE(&td, get_data_item_index (&td, field));
2024                         } else  {
2025                                 if (is_static) {
2026                                         ADD_CODE (&td, MINT_POP);
2027                                         ADD_CODE (&td, 0);
2028                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2029                                         ADD_CODE (&td, get_data_item_index (&td, field));
2030                                 } else {
2031                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2032                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2033                                 }
2034                         }
2035                         if (mt == MINT_TYPE_VT) {
2036                                 int size = mono_class_value_size (field_klass, NULL);
2037                                 PUSH_VT(&td, size);
2038                                 WRITE32(&td, &size);
2039                         }
2040                         if (td.sp [-1].type == STACK_TYPE_VT) {
2041                                 int size = mono_class_value_size (klass, NULL);
2042                                 size = (size + 7) & ~7;
2043                                 td.vt_sp -= size;
2044                                 ADD_CODE (&td, MINT_VTRESULT);
2045                                 ADD_CODE (&td, 0);
2046                                 WRITE32 (&td, &size);
2047                         }
2048                         td.ip += 5;
2049                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2050                         break;
2051                 }
2052                 case CEE_STFLD: {
2053                         CHECK_STACK (&td, 2);
2054                         token = read32 (td.ip + 1);
2055                         field = mono_field_from_token (image, token, &klass, generic_context);
2056                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2057                         mono_class_init (klass);
2058                         mt = mint_type(field->type);
2059
2060                         if (klass->marshalbyref) {
2061                                 g_assert (!is_static);
2062                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2063                                 ADD_CODE(&td, get_data_item_index (&td, field));
2064                         } else  {
2065                                 if (is_static) {
2066                                         ADD_CODE (&td, MINT_POP);
2067                                         ADD_CODE (&td, 1);
2068                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2069                                         ADD_CODE (&td, get_data_item_index (&td, field));
2070                                 } else {
2071                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2072                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2073                                 }
2074                         }
2075                         if (mt == MINT_TYPE_VT) {
2076                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2077                                 int size = mono_class_value_size (klass, NULL);
2078                                 POP_VT(&td, size);
2079                                 WRITE32(&td, &size);
2080                         }
2081                         td.ip += 5;
2082                         td.sp -= 2;
2083                         break;
2084                 }
2085                 case CEE_LDSFLDA:
2086                         token = read32 (td.ip + 1);
2087                         field = mono_field_from_token (image, token, &klass, generic_context);
2088                         ADD_CODE(&td, MINT_LDSFLDA);
2089                         ADD_CODE(&td, get_data_item_index (&td, field));
2090                         td.ip += 5;
2091                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2092                         break;
2093                 case CEE_LDSFLD:
2094                         token = read32 (td.ip + 1);
2095                         field = mono_field_from_token (image, token, &klass, generic_context);
2096                         mt = mint_type(field->type);
2097                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2098                         ADD_CODE(&td, get_data_item_index (&td, field));
2099                         klass = NULL;
2100                         if (mt == MINT_TYPE_VT) {
2101                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2102                                 int size = mono_class_value_size (klass, NULL);
2103                                 PUSH_VT(&td, size);
2104                                 WRITE32(&td, &size);
2105                                 klass = field->type->data.klass;
2106                         } else {
2107                                 if (mt == MINT_TYPE_O)
2108                                         klass = mono_class_from_mono_type (field->type);
2109                         }
2110                         td.ip += 5;
2111                         PUSH_TYPE(&td, stack_type [mt], klass);
2112                         break;
2113                 case CEE_STSFLD:
2114                         CHECK_STACK (&td, 1);
2115                         token = read32 (td.ip + 1);
2116                         field = mono_field_from_token (image, token, &klass, generic_context);
2117                         mt = mint_type(field->type);
2118                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2119                         ADD_CODE(&td, get_data_item_index (&td, field));
2120                         if (mt == MINT_TYPE_VT) {
2121                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2122                                 int size = mono_class_value_size (klass, NULL);
2123                                 POP_VT (&td, size);
2124                                 WRITE32 (&td, &size);
2125                         }
2126                         td.ip += 5;
2127                         --td.sp;
2128                         break;
2129                 case CEE_STOBJ: {
2130                         int size;
2131                         token = read32 (td.ip + 1);
2132
2133                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2134                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2135                         else
2136                                 klass = mono_class_get_full (image, token, generic_context);
2137
2138                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2139                         ADD_CODE(&td, get_data_item_index (&td, klass));
2140                         if (td.sp [-1].type == STACK_TYPE_VT) {
2141                                 size = mono_class_value_size (klass, NULL);
2142                                 size = (size + 7) & ~7;
2143                                 td.vt_sp -= size;
2144                         }
2145                         td.ip += 5;
2146                         td.sp -= 2;
2147                         break;
2148                 }
2149                 case CEE_CONV_OVF_I_UN:
2150                 case CEE_CONV_OVF_U_UN:
2151                         CHECK_STACK (&td, 1);
2152                         switch (td.sp [-1].type) {
2153                         case STACK_TYPE_R8:
2154 #if SIZEOF_VOID_P == 8
2155                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2156 #else
2157                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2158 #endif
2159                                 break;
2160                         case STACK_TYPE_I8:
2161 #if SIZEOF_VOID_P == 4
2162                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2163 #endif
2164                                 break;
2165                         case STACK_TYPE_I4:
2166 #if SIZEOF_VOID_P == 8
2167                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2168 #endif
2169                                 break;
2170                         default:
2171                                 g_assert_not_reached ();
2172                                 break;
2173                         }
2174                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2175                         ++td.ip;
2176                         break;
2177                 case CEE_CONV_OVF_I8_UN:
2178                 case CEE_CONV_OVF_U8_UN:
2179                         CHECK_STACK (&td, 1);
2180                         switch (td.sp [-1].type) {
2181                         case STACK_TYPE_R8:
2182                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2183                                 break;
2184                         case STACK_TYPE_I8:
2185                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2186                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2187                                 break;
2188                         case STACK_TYPE_I4:
2189                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2190                                 break;
2191                         default:
2192                                 g_assert_not_reached ();
2193                                 break;
2194                         }
2195                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2196                         ++td.ip;
2197                         break;
2198                 case CEE_BOX: {
2199                         int size;
2200                         CHECK_STACK (&td, 1);
2201                         token = read32 (td.ip + 1);
2202                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2203                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2204                         else
2205                                 klass = mono_class_get_full (image, token, generic_context);
2206
2207                         if (mono_class_is_nullable (klass)) {
2208                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2209                                 /* td.ip is incremented by interp_transform_call */
2210                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2211                         } else if (!klass->valuetype) {
2212                                 /* already boxed, do nothing. */
2213                                 td.ip += 5;
2214                         } else {
2215                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2216                                         size = mono_class_value_size (klass, NULL);
2217                                         size = (size + 7) & ~7;
2218                                         td.vt_sp -= size;
2219                                 }
2220                                 ADD_CODE(&td, MINT_BOX);
2221                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2222                                 ADD_CODE (&td, 0);
2223                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2224                                 td.ip += 5;
2225                         }
2226
2227                         break;
2228                 }
2229                 case CEE_NEWARR: {
2230                         CHECK_STACK (&td, 1);
2231                         token = read32 (td.ip + 1);
2232
2233                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2234                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2235                         else
2236                                 klass = mono_class_get_full (image, token, generic_context);
2237
2238                         unsigned char lentype = (td.sp - 1)->type;
2239                         if (lentype == STACK_TYPE_I8) {
2240                                 /* mimic mini behaviour */
2241                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2242                         } else {
2243                                 g_assert (lentype == STACK_TYPE_I4);
2244                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2245                         }
2246                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2247                         ADD_CODE (&td, MINT_NEWARR);
2248                         ADD_CODE (&td, get_data_item_index (&td, klass));
2249                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2250                         td.ip += 5;
2251                         break;
2252                 }
2253                 case CEE_LDLEN:
2254                         CHECK_STACK (&td, 1);
2255                         SIMPLE_OP (td, MINT_LDLEN);
2256                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2257                         break;
2258                 case CEE_LDELEMA:
2259                         CHECK_STACK (&td, 2);
2260                         ENSURE_I4 (&td, 1);
2261                         token = read32 (td.ip + 1);
2262
2263                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2264                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2265                         else
2266                                 klass = mono_class_get_full (image, token, generic_context);
2267
2268                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2269                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2270                         } else {
2271                                 ADD_CODE (&td, MINT_LDELEMA);
2272                         }
2273                         ADD_CODE (&td, get_data_item_index (&td, klass));
2274                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2275                         ADD_CODE (&td, 2);
2276                         readonly = FALSE;
2277
2278                         td.ip += 5;
2279                         --td.sp;
2280                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2281                         break;
2282                 case CEE_LDELEM_I1:
2283                         CHECK_STACK (&td, 2);
2284                         ENSURE_I4 (&td, 1);
2285                         SIMPLE_OP (td, MINT_LDELEM_I1);
2286                         --td.sp;
2287                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2288                         break;
2289                 case CEE_LDELEM_U1:
2290                         CHECK_STACK (&td, 2);
2291                         ENSURE_I4 (&td, 1);
2292                         SIMPLE_OP (td, MINT_LDELEM_U1);
2293                         --td.sp;
2294                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2295                         break;
2296                 case CEE_LDELEM_I2:
2297                         CHECK_STACK (&td, 2);
2298                         ENSURE_I4 (&td, 1);
2299                         SIMPLE_OP (td, MINT_LDELEM_I2);
2300                         --td.sp;
2301                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2302                         break;
2303                 case CEE_LDELEM_U2:
2304                         CHECK_STACK (&td, 2);
2305                         ENSURE_I4 (&td, 1);
2306                         SIMPLE_OP (td, MINT_LDELEM_U2);
2307                         --td.sp;
2308                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2309                         break;
2310                 case CEE_LDELEM_I4:
2311                         CHECK_STACK (&td, 2);
2312                         ENSURE_I4 (&td, 1);
2313                         SIMPLE_OP (td, MINT_LDELEM_I4);
2314                         --td.sp;
2315                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2316                         break;
2317                 case CEE_LDELEM_U4:
2318                         CHECK_STACK (&td, 2);
2319                         ENSURE_I4 (&td, 1);
2320                         SIMPLE_OP (td, MINT_LDELEM_U4);
2321                         --td.sp;
2322                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2323                         break;
2324                 case CEE_LDELEM_I8:
2325                         CHECK_STACK (&td, 2);
2326                         ENSURE_I4 (&td, 1);
2327                         SIMPLE_OP (td, MINT_LDELEM_I8);
2328                         --td.sp;
2329                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2330                         break;
2331                 case CEE_LDELEM_I:
2332                         CHECK_STACK (&td, 2);
2333                         ENSURE_I4 (&td, 1);
2334                         SIMPLE_OP (td, MINT_LDELEM_I);
2335                         --td.sp;
2336                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2337                         break;
2338                 case CEE_LDELEM_R4:
2339                         CHECK_STACK (&td, 2);
2340                         ENSURE_I4 (&td, 1);
2341                         SIMPLE_OP (td, MINT_LDELEM_R4);
2342                         --td.sp;
2343                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2344                         break;
2345                 case CEE_LDELEM_R8:
2346                         CHECK_STACK (&td, 2);
2347                         ENSURE_I4 (&td, 1);
2348                         SIMPLE_OP (td, MINT_LDELEM_R8);
2349                         --td.sp;
2350                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2351                         break;
2352                 case CEE_LDELEM_REF:
2353                         CHECK_STACK (&td, 2);
2354                         ENSURE_I4 (&td, 1);
2355                         SIMPLE_OP (td, MINT_LDELEM_REF);
2356                         --td.sp;
2357                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2358                         break;
2359                 case CEE_LDELEM:
2360                         CHECK_STACK (&td, 2);
2361                         token = read32 (td.ip + 1);
2362                         klass = mono_class_get_full (image, token, generic_context);
2363                         switch (mint_type (&klass->byval_arg)) {
2364                                 case MINT_TYPE_I1:
2365                                         ENSURE_I4 (&td, 1);
2366                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2367                                         --td.sp;
2368                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2369                                         break;
2370                                 case MINT_TYPE_U1:
2371                                         ENSURE_I4 (&td, 1);
2372                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2373                                         --td.sp;
2374                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2375                                         break;
2376                                 case MINT_TYPE_U2:
2377                                         ENSURE_I4 (&td, 1);
2378                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2379                                         --td.sp;
2380                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2381                                         break;
2382                                 case MINT_TYPE_I2:
2383                                         ENSURE_I4 (&td, 1);
2384                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2385                                         --td.sp;
2386                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2387                                         break;
2388                                 case MINT_TYPE_I4:
2389                                         ENSURE_I4 (&td, 1);
2390                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2391                                         --td.sp;
2392                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2393                                         break;
2394                                 case MINT_TYPE_I8:
2395                                         ENSURE_I4 (&td, 1);
2396                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2397                                         --td.sp;
2398                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2399                                         break;
2400                                 case MINT_TYPE_R4:
2401                                         ENSURE_I4 (&td, 1);
2402                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2403                                         --td.sp;
2404                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2405                                         break;
2406                                 case MINT_TYPE_R8:
2407                                         ENSURE_I4 (&td, 1);
2408                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2409                                         --td.sp;
2410                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2411                                         break;
2412                                 case MINT_TYPE_O:
2413                                         ENSURE_I4 (&td, 1);
2414                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2415                                         --td.sp;
2416                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2417                                         break;
2418                                 case MINT_TYPE_VT: {
2419                                         int size = mono_class_value_size (klass, NULL);
2420                                         ENSURE_I4 (&td, 1);
2421                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2422                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2423                                         WRITE32 (&td, &size);
2424                                         --td.sp;
2425                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2426                                         PUSH_VT (&td, size);
2427                                         break;
2428                                 }
2429                                 default: {
2430                                         GString *res = g_string_new ("");
2431                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2432                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2433                                         g_string_free (res, TRUE);
2434                                         g_assert (0);
2435                                         break;
2436                                 }
2437                         }
2438                         td.ip += 4;
2439                         break;
2440                 case CEE_STELEM_I:
2441                         CHECK_STACK (&td, 3);
2442                         ENSURE_I4 (&td, 2);
2443                         SIMPLE_OP (td, MINT_STELEM_I);
2444                         td.sp -= 3;
2445                         break;
2446                 case CEE_STELEM_I1:
2447                         CHECK_STACK (&td, 3);
2448                         ENSURE_I4 (&td, 2);
2449                         SIMPLE_OP (td, MINT_STELEM_I1);
2450                         td.sp -= 3;
2451                         break;
2452                 case CEE_STELEM_I2:
2453                         CHECK_STACK (&td, 3);
2454                         ENSURE_I4 (&td, 2);
2455                         SIMPLE_OP (td, MINT_STELEM_I2);
2456                         td.sp -= 3;
2457                         break;
2458                 case CEE_STELEM_I4:
2459                         CHECK_STACK (&td, 3);
2460                         ENSURE_I4 (&td, 2);
2461                         SIMPLE_OP (td, MINT_STELEM_I4);
2462                         td.sp -= 3;
2463                         break;
2464                 case CEE_STELEM_I8:
2465                         CHECK_STACK (&td, 3);
2466                         ENSURE_I4 (&td, 2);
2467                         SIMPLE_OP (td, MINT_STELEM_I8);
2468                         td.sp -= 3;
2469                         break;
2470                 case CEE_STELEM_R4:
2471                         CHECK_STACK (&td, 3);
2472                         ENSURE_I4 (&td, 2);
2473                         SIMPLE_OP (td, MINT_STELEM_R4);
2474                         td.sp -= 3;
2475                         break;
2476                 case CEE_STELEM_R8:
2477                         CHECK_STACK (&td, 3);
2478                         ENSURE_I4 (&td, 2);
2479                         SIMPLE_OP (td, MINT_STELEM_R8);
2480                         td.sp -= 3;
2481                         break;
2482                 case CEE_STELEM_REF:
2483                         CHECK_STACK (&td, 3);
2484                         ENSURE_I4 (&td, 2);
2485                         SIMPLE_OP (td, MINT_STELEM_REF);
2486                         td.sp -= 3;
2487                         break;
2488                 case CEE_STELEM:
2489                         CHECK_STACK (&td, 3);
2490                         ENSURE_I4 (&td, 2);
2491                         token = read32 (td.ip + 1);
2492                         klass = mono_class_get_full (image, token, generic_context);
2493                         switch (mint_type (&klass->byval_arg)) {
2494                                 case MINT_TYPE_U1:
2495                                         SIMPLE_OP (td, MINT_STELEM_U1);
2496                                         break;
2497                                 case MINT_TYPE_I4:
2498                                         SIMPLE_OP (td, MINT_STELEM_I4);
2499                                         break;
2500                                 case MINT_TYPE_I8:
2501                                         SIMPLE_OP (td, MINT_STELEM_I8);
2502                                         break;
2503                                 case MINT_TYPE_O:
2504                                         SIMPLE_OP (td, MINT_STELEM_REF);
2505                                         break;
2506                                 case MINT_TYPE_VT: {
2507                                         int size = mono_class_value_size (klass, NULL);
2508                                         SIMPLE_OP (td, MINT_STELEM_VT);
2509                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2510                                         WRITE32 (&td, &size);
2511                                         POP_VT (&td, size);
2512                                         break;
2513                                 }
2514                                 default: {
2515                                         GString *res = g_string_new ("");
2516                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2517                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2518                                         g_string_free (res, TRUE);
2519                                         g_assert (0);
2520                                         break;
2521                                 }
2522                         }
2523                         td.ip += 4;
2524                         td.sp -= 3;
2525                         break;
2526 #if 0
2527                 case CEE_CONV_OVF_U1:
2528
2529                 case CEE_CONV_OVF_I8:
2530
2531 #if SIZEOF_VOID_P == 8
2532                 case CEE_CONV_OVF_U:
2533 #endif
2534                 case CEE_REFANYVAL: ves_abort(); break;
2535 #endif
2536                 case CEE_CKFINITE:
2537                         CHECK_STACK (&td, 1);
2538                         SIMPLE_OP (td, MINT_CKFINITE);
2539                         break;
2540                 case CEE_CONV_OVF_I1:
2541                 case CEE_CONV_OVF_I1_UN:
2542                         CHECK_STACK (&td, 1);
2543                         switch (td.sp [-1].type) {
2544                         case STACK_TYPE_R8:
2545                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2546                                 break;
2547                         case STACK_TYPE_I4:
2548                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2549                                 break;
2550                         case STACK_TYPE_I8:
2551                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2552                                 break;
2553                         default:
2554                                 g_assert_not_reached ();
2555                         }
2556                         ++td.ip;
2557                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2558                         break;
2559                 case CEE_CONV_OVF_U1:
2560                 case CEE_CONV_OVF_U1_UN:
2561                         CHECK_STACK (&td, 1);
2562                         switch (td.sp [-1].type) {
2563                         case STACK_TYPE_R8:
2564                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2565                                 break;
2566                         case STACK_TYPE_I4:
2567                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2568                                 break;
2569                         case STACK_TYPE_I8:
2570                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2571                                 break;
2572                         default:
2573                                 g_assert_not_reached ();
2574                         }
2575                         ++td.ip;
2576                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2577                         break;
2578                 case CEE_CONV_OVF_I2:
2579                 case CEE_CONV_OVF_I2_UN:
2580                         CHECK_STACK (&td, 1);
2581                         switch (td.sp [-1].type) {
2582                         case STACK_TYPE_R8:
2583                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2584                                 break;
2585                         case STACK_TYPE_I4:
2586                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2587                                 break;
2588                         case STACK_TYPE_I8:
2589                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2590                                 break;
2591                         default:
2592                                 g_assert_not_reached ();
2593                         }
2594                         ++td.ip;
2595                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2596                         break;
2597                 case CEE_CONV_OVF_U2_UN:
2598                 case CEE_CONV_OVF_U2:
2599                         CHECK_STACK (&td, 1);
2600                         switch (td.sp [-1].type) {
2601                         case STACK_TYPE_R8:
2602                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2603                                 break;
2604                         case STACK_TYPE_I4:
2605                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2606                                 break;
2607                         case STACK_TYPE_I8:
2608                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2609                                 break;
2610                         default:
2611                                 g_assert_not_reached ();
2612                         }
2613                         ++td.ip;
2614                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2615                         break;
2616 #if SIZEOF_VOID_P == 4
2617                 case CEE_CONV_OVF_I:
2618 #endif
2619                 case CEE_CONV_OVF_I4:
2620                 case CEE_CONV_OVF_I4_UN:
2621                         CHECK_STACK (&td, 1);
2622                         switch (td.sp [-1].type) {
2623                         case STACK_TYPE_R8:
2624                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2625                                 break;
2626                         case STACK_TYPE_I4:
2627                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2628                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2629                                 break;
2630                         case STACK_TYPE_I8:
2631                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2632                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2633                                 else
2634                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2635                                 break;
2636                         default:
2637                                 g_assert_not_reached ();
2638                         }
2639                         ++td.ip;
2640                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2641                         break;
2642 #if SIZEOF_VOID_P == 4
2643                 case CEE_CONV_OVF_U:
2644 #endif
2645                 case CEE_CONV_OVF_U4:
2646                 case CEE_CONV_OVF_U4_UN:
2647                         CHECK_STACK (&td, 1);
2648                         switch (td.sp [-1].type) {
2649                         case STACK_TYPE_R8:
2650                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2651                                 break;
2652                         case STACK_TYPE_I4:
2653                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2654                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2655                                 break;
2656                         case STACK_TYPE_I8:
2657                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2658                                 break;
2659                         default:
2660                                 g_assert_not_reached ();
2661                         }
2662                         ++td.ip;
2663                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2664                         break;
2665 #if SIZEOF_VOID_P == 8
2666                 case CEE_CONV_OVF_I:
2667 #endif
2668                 case CEE_CONV_OVF_I8:
2669                         CHECK_STACK (&td, 1);
2670                         switch (td.sp [-1].type) {
2671                         case STACK_TYPE_R8:
2672                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2673                                 break;
2674                         case STACK_TYPE_I4:
2675                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2676                                 break;
2677                         case STACK_TYPE_I8:
2678                                 break;
2679                         default:
2680                                 g_assert_not_reached ();
2681                         }
2682                         ++td.ip;
2683                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2684                         break;
2685 #if SIZEOF_VOID_P == 8
2686                 case CEE_CONV_OVF_U:
2687 #endif
2688                 case CEE_CONV_OVF_U8:
2689                         CHECK_STACK (&td, 1);
2690                         switch (td.sp [-1].type) {
2691                         case STACK_TYPE_R8:
2692                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2693                                 break;
2694                         case STACK_TYPE_I4:
2695                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2696                                 break;
2697                         case STACK_TYPE_I8:
2698                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2699                                 break;
2700                         default:
2701                                 g_assert_not_reached ();
2702                         }
2703                         ++td.ip;
2704                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2705                         break;
2706                 case CEE_LDTOKEN: {
2707                         int size;
2708                         gpointer handle;
2709                         token = read32 (td.ip + 1);
2710                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2711                                 handle = mono_method_get_wrapper_data (method, token);
2712                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2713                                 if (klass == mono_defaults.typehandle_class)
2714                                         handle = &((MonoClass *) handle)->byval_arg;
2715
2716                                 if (generic_context) {
2717                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
2718                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2719                                 }
2720                         } else {
2721                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2722                         }
2723                         mono_class_init (klass);
2724                         mt = mint_type (&klass->byval_arg);
2725                         g_assert (mt == MINT_TYPE_VT);
2726                         size = mono_class_value_size (klass, NULL);
2727                         g_assert (size == sizeof(gpointer));
2728                         PUSH_VT (&td, sizeof(gpointer));
2729                         ADD_CODE (&td, MINT_LDTOKEN);
2730                         ADD_CODE (&td, get_data_item_index (&td, handle));
2731
2732                         SET_TYPE (td.sp, stack_type [mt], klass);
2733                         td.sp++;
2734                         td.ip += 5;
2735                         break;
2736                 }
2737                 case CEE_ADD_OVF:
2738                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2739                         ++td.ip;
2740                         break;
2741                 case CEE_ADD_OVF_UN:
2742                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2743                         ++td.ip;
2744                         break;
2745                 case CEE_MUL_OVF:
2746                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2747                         ++td.ip;
2748                         break;
2749                 case CEE_MUL_OVF_UN:
2750                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2751                         ++td.ip;
2752                         break;
2753                 case CEE_SUB_OVF:
2754                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2755                         ++td.ip;
2756                         break;
2757                 case CEE_SUB_OVF_UN:
2758                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2759                         ++td.ip;
2760                         break;
2761                 case CEE_ENDFINALLY:
2762                         SIMPLE_OP (td, MINT_ENDFINALLY);
2763                         generating_code = 0;
2764                         break;
2765                 case CEE_LEAVE:
2766                         td.sp = td.stack;
2767                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2768                         td.ip += 5;
2769                         generating_code = 0;
2770                         break;
2771                 case CEE_LEAVE_S:
2772                         td.sp = td.stack;
2773                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2774                         td.ip += 2;
2775                         generating_code = 0;
2776                         break;
2777                 case CEE_UNUSED41:
2778                         ++td.ip;
2779                         switch (*td.ip) {
2780                                 case CEE_MONO_CALLI_EXTRA_ARG:
2781                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2782                                         ADD_CODE (&td, MINT_POP);
2783                                         ADD_CODE (&td, 1);
2784                                         --td.sp;
2785                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2786                                         break;
2787                                 case CEE_MONO_JIT_ICALL_ADDR: {
2788                                         guint32 token;
2789                                         gpointer func;
2790                                         MonoJitICallInfo *info;
2791
2792                                         token = read32 (td.ip + 1);
2793                                         td.ip += 5;
2794                                         func = mono_method_get_wrapper_data (method, token);
2795                                         info = mono_find_jit_icall_by_addr (func);
2796
2797                                         ADD_CODE (&td, MINT_LDFTN);
2798                                         ADD_CODE (&td, get_data_item_index (&td, func));
2799                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2800                                         break;
2801                                 }
2802                                 case CEE_MONO_ICALL: {
2803                                         guint32 token;
2804                                         gpointer func;
2805                                         MonoJitICallInfo *info;
2806
2807                                         token = read32 (td.ip + 1);
2808                                         td.ip += 5;
2809                                         func = mono_method_get_wrapper_data (method, token);
2810                                         info = mono_find_jit_icall_by_addr (func);
2811                                         g_assert (info);
2812
2813                                         CHECK_STACK (&td, info->sig->param_count);
2814                                         switch (info->sig->param_count) {
2815                                         case 0:
2816                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2817                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2818                                                 else
2819                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2820                                                 break;
2821                                         case 1:
2822                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2823                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2824                                                 else
2825                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2826                                                 break;
2827                                         case 2:
2828                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2829                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2830                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2831                                                         else
2832                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2833                                                 } else {
2834                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2835                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2836                                                         else
2837                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2838                                                 }
2839                                                 break;
2840                                         case 3:
2841                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2842                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2843                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2844                                                 else
2845                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2846                                                 break;
2847                                         default:
2848                                                 g_assert_not_reached ();
2849                                         }
2850
2851                                         if (func == mono_ftnptr_to_delegate) {
2852                                                 g_error ("TODO: ?");
2853                                         }
2854                                         ADD_CODE(&td, get_data_item_index (&td, func));
2855                                         td.sp -= info->sig->param_count;
2856
2857                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2858                                                 td.sp ++;
2859                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2860                                         }
2861                                         break;
2862                                 }
2863                         case CEE_MONO_VTADDR: {
2864                                 int size;
2865                                 CHECK_STACK (&td, 1);
2866                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2867                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2868                                 else
2869                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2870                                 size = (size + 7) & ~7;
2871                                 ADD_CODE(&td, MINT_VTRESULT);
2872                                 ADD_CODE(&td, 0);
2873                                 WRITE32(&td, &size);
2874                                 td.vt_sp -= size;
2875                                 ++td.ip;
2876                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2877                                 break;
2878                         }
2879                         case CEE_MONO_LDPTR:
2880                         case CEE_MONO_CLASSCONST:
2881                                 token = read32 (td.ip + 1);
2882                                 td.ip += 5;
2883                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2884                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2885                                 td.sp [0].type = STACK_TYPE_I;
2886                                 ++td.sp;
2887                                 break;
2888                         case CEE_MONO_OBJADDR:
2889                                 CHECK_STACK (&td, 1);
2890                                 ++td.ip;
2891                                 td.sp[-1].type = STACK_TYPE_MP;
2892                                 /* do nothing? */
2893                                 break;
2894                         case CEE_MONO_NEWOBJ:
2895                                 token = read32 (td.ip + 1);
2896                                 td.ip += 5;
2897                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2898                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2899                                 td.sp [0].type = STACK_TYPE_O;
2900                                 ++td.sp;
2901                                 break;
2902                         case CEE_MONO_RETOBJ:
2903                                 CHECK_STACK (&td, 1);
2904                                 token = read32 (td.ip + 1);
2905                                 td.ip += 5;
2906                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2907                                 td.sp--;
2908
2909                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2910
2911                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2912
2913                                 if (td.sp > td.stack)
2914                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2915                                 break;
2916                         case CEE_MONO_LDNATIVEOBJ:
2917                                 token = read32 (td.ip + 1);
2918                                 td.ip += 5;
2919                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2920                                 g_assert(klass->valuetype);
2921                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2922                                 break;
2923                         case CEE_MONO_SAVE_LMF:
2924                         case CEE_MONO_RESTORE_LMF:
2925                         case CEE_MONO_NOT_TAKEN:
2926                                 ++td.ip;
2927                                 break;
2928                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
2929                                 ADD_CODE (&td, MINT_MONO_LDPTR);
2930                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
2931                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
2932                                 ++td.ip;
2933                                 break;
2934                         default:
2935                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2936                         }
2937                         break;
2938 #if 0
2939                 case CEE_PREFIX7:
2940                 case CEE_PREFIX6:
2941                 case CEE_PREFIX5:
2942                 case CEE_PREFIX4:
2943                 case CEE_PREFIX3:
2944                 case CEE_PREFIX2:
2945                 case CEE_PREFIXREF: ves_abort(); break;
2946 #endif
2947                 /*
2948                  * Note: Exceptions thrown when executing a prefixed opcode need
2949                  * to take into account the number of prefix bytes (usually the
2950                  * throw point is just (ip - n_prefix_bytes).
2951                  */
2952                 case CEE_PREFIX1:
2953                         ++td.ip;
2954                         switch (*td.ip) {
2955 #if 0
2956                         case CEE_ARGLIST: ves_abort(); break;
2957 #endif
2958                         case CEE_CEQ:
2959                                 CHECK_STACK(&td, 2);
2960                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2961                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2962                                 else
2963                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
2964                                 --td.sp;
2965                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2966                                 ++td.ip;
2967                                 break;
2968                         case CEE_CGT:
2969                                 CHECK_STACK(&td, 2);
2970                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2971                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2972                                 else
2973                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2974                                 --td.sp;
2975                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2976                                 ++td.ip;
2977                                 break;
2978                         case CEE_CGT_UN:
2979                                 CHECK_STACK(&td, 2);
2980                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2981                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2982                                 else
2983                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2984                                 --td.sp;
2985                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2986                                 ++td.ip;
2987                                 break;
2988                         case CEE_CLT:
2989                                 CHECK_STACK(&td, 2);
2990                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2991                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2992                                 else
2993                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2994                                 --td.sp;
2995                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2996                                 ++td.ip;
2997                                 break;
2998                         case CEE_CLT_UN:
2999                                 CHECK_STACK(&td, 2);
3000                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3001                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3002                                 else
3003                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3004                                 --td.sp;
3005                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3006                                 ++td.ip;
3007                                 break;
3008                         case CEE_LDVIRTFTN: /* fallthrough */
3009                         case CEE_LDFTN: {
3010                                 MonoMethod *m;
3011                                 if (*td.ip == CEE_LDVIRTFTN) {
3012                                         CHECK_STACK (&td, 1);
3013                                         --td.sp;
3014                                 }
3015                                 token = read32 (td.ip + 1);
3016                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3017                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3018                                 else
3019                                         m = mono_get_method_full (image, token, NULL, generic_context);
3020
3021                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3022                                         m = mono_marshal_get_synchronized_wrapper (m);
3023
3024                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3025                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3026                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3027                                 td.ip += 5;
3028                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3029                                 break;
3030                         }
3031                         case CEE_LDARG:
3032                                 load_arg (&td, read16 (td.ip + 1));
3033                                 td.ip += 3;
3034                                 break;
3035                         case CEE_LDARGA: {
3036                                 int n = read16 (td.ip + 1);
3037                                 ADD_CODE (&td, MINT_LDARGA);
3038                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3039                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3040                                 td.ip += 3;
3041                                 break;
3042                         }
3043                         case CEE_STARG:
3044                                 store_arg (&td, read16 (td.ip + 1));
3045                                 td.ip += 3;
3046                                 break;
3047                         case CEE_LDLOC:
3048                                 load_local (&td, read16 (td.ip + 1));
3049                                 td.ip += 3;
3050                                 break;
3051                         case CEE_LDLOCA:
3052                                 ADD_CODE(&td, MINT_LDLOCA_S);
3053                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3054                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3055                                 td.ip += 3;
3056                                 break;
3057                         case CEE_STLOC:
3058                                 store_local (&td, read16 (td.ip + 1));
3059                                 td.ip += 3;
3060                                 break;
3061                         case CEE_LOCALLOC:
3062                                 CHECK_STACK (&td, 1);
3063 #if SIZEOF_VOID_P == 8
3064                                 if (td.sp [-1].type == STACK_TYPE_I8)
3065                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3066 #endif
3067                                 ADD_CODE(&td, MINT_LOCALLOC);
3068                                 if (td.sp != td.stack + 1)
3069                                         g_warning("CEE_LOCALLOC: stack not empty");
3070                                 ++td.ip;
3071                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3072                                 break;
3073 #if 0
3074                         case CEE_UNUSED57: ves_abort(); break;
3075                         case CEE_ENDFILTER: ves_abort(); break;
3076 #endif
3077                         case CEE_UNALIGNED_:
3078                                 ++td.ip;
3079                                 /* FIX: should do something? */;
3080                                 break;
3081                         case CEE_VOLATILE_:
3082                                 ++td.ip;
3083                                 /* FIX: should do something? */;
3084                                 break;
3085                         case CEE_TAIL_:
3086                                 ++td.ip;
3087                                 /* FIX: should do something? */;
3088                                 break;
3089                         case CEE_INITOBJ:
3090                                 CHECK_STACK(&td, 1);
3091                                 token = read32 (td.ip + 1);
3092                                 klass = mono_class_get_full (image, token, generic_context);
3093                                 if (klass->valuetype) {
3094                                         ADD_CODE (&td, MINT_INITOBJ);
3095                                         i32 = mono_class_value_size (klass, NULL);
3096                                         WRITE32 (&td, &i32);
3097                                 } else {
3098                                         ADD_CODE (&td, MINT_LDNULL);
3099                                         ADD_CODE (&td, MINT_STIND_REF);
3100                                 }
3101                                 td.ip += 5;
3102                                 --td.sp;
3103                                 break;
3104                         case CEE_CPBLK:
3105                                 CHECK_STACK(&td, 3);
3106                                 /* FIX? convert length to I8? */
3107                                 ADD_CODE(&td, MINT_CPBLK);
3108                                 td.sp -= 3;
3109                                 ++td.ip;
3110                                 break;
3111                         case CEE_READONLY_:
3112                                 readonly = TRUE;
3113                                 td.ip += 1;
3114                                 break;
3115                         case CEE_CONSTRAINED_:
3116                                 token = read32 (td.ip + 1);
3117                                 constrained_class = mono_class_get_full (image, token, generic_context);
3118                                 mono_class_init (constrained_class);
3119                                 td.ip += 5;
3120                                 break;
3121                         case CEE_INITBLK:
3122                                 CHECK_STACK(&td, 3);
3123                                 ADD_CODE(&td, MINT_INITBLK);
3124                                 td.sp -= 3;
3125                                 break;
3126 #if 0
3127                         case CEE_NO_:
3128                                 /* FIXME: implement */
3129                                 ip += 2;
3130                                 break;
3131 #endif
3132                         case CEE_RETHROW:
3133                                 SIMPLE_OP (td, MINT_RETHROW);
3134                                 generating_code = 0;
3135                                 break;
3136                         case CEE_SIZEOF: {
3137                                 gint32 size;
3138                                 token = read32 (td.ip + 1);
3139                                 td.ip += 5;
3140                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3141                                         int align;
3142                                         MonoType *type = mono_type_create_from_typespec (image, token);
3143                                         size = mono_type_size (type, &align);
3144                                 } else {
3145                                         int align;
3146                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
3147                                         mono_class_init (szclass);
3148 #if 0
3149                                         if (!szclass->valuetype)
3150                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3151 #endif
3152                                         size = mono_type_size (&szclass->byval_arg, &align);
3153                                 }
3154                                 ADD_CODE(&td, MINT_LDC_I4);
3155                                 WRITE32(&td, &size);
3156                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3157                                 break;
3158                         }
3159 #if 0
3160                         case CEE_REFANYTYPE: ves_abort(); break;
3161 #endif
3162                         default:
3163                                 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);
3164                         }
3165                         break;
3166                 default:
3167                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3168                 }
3169
3170                 if (td.new_ip - td.new_code != new_in_start_offset)
3171                         td.last_new_ip = td.new_code + new_in_start_offset;
3172                 else if (td.is_bb_start [td.in_start - td.il_code])
3173                         td.is_bb_start [td.ip - td.il_code] = 1;
3174
3175                 td.last_ip = td.in_start;
3176         }
3177
3178         if (mono_interp_traceopt) {
3179                 const guint16 *p = td.new_code;
3180                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3181                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3182                 while (p < td.new_ip) {
3183                         p = mono_interp_dis_mintop(td.new_code, p);
3184                         printf("\n");
3185                 }
3186         }
3187         g_assert (td.max_stack_height <= (header->max_stack + 1));
3188
3189         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3190         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3191         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3192         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3193         g_free (td.new_code);
3194         rtm->new_body_start = rtm->code + body_start_offset;
3195         rtm->num_clauses = header->num_clauses;
3196         for (i = 0; i < header->num_clauses; i++) {
3197                 MonoExceptionClause *c = rtm->clauses + i;
3198                 int end_off = c->try_offset + c->try_len;
3199                 c->try_offset = td.in_offsets [c->try_offset];
3200                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3201                 end_off = c->handler_offset + c->handler_len;
3202                 c->handler_offset = td.in_offsets [c->handler_offset];
3203                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3204         }
3205         rtm->vt_stack_size = td.max_vt_sp;
3206         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3207         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3208         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3209         g_free (td.in_offsets);
3210         g_free (td.forward_refs);
3211         for (i = 0; i < header->code_size; ++i)
3212                 g_free (td.stack_state [i]);
3213         g_free (td.stack_state);
3214         g_free (td.stack_height);
3215         g_free (td.vt_stack_size);
3216         g_free (td.data_items);
3217         g_free (td.stack);
3218         g_hash_table_destroy (td.data_hash);
3219 }
3220
3221 static mono_mutex_t calc_section;
3222
3223 void
3224 mono_interp_transform_init (void)
3225 {
3226         mono_os_mutex_init_recursive(&calc_section);
3227 }
3228
3229 MonoException *
3230 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3231 {
3232         int i, align, size, offset;
3233         MonoMethod *method = runtime_method->method;
3234         MonoImage *image = method->klass->image;
3235         MonoMethodHeader *header = mono_method_get_header (method);
3236         MonoMethodSignature *signature = mono_method_signature (method);
3237         register const unsigned char *ip, *end;
3238         const MonoOpcode *opcode;
3239         MonoMethod *m;
3240         MonoClass *class;
3241         MonoDomain *domain = mono_domain_get ();
3242         unsigned char *is_bb_start;
3243         int in;
3244         MonoVTable *method_class_vt;
3245         int backwards;
3246         MonoGenericContext *generic_context = NULL;
3247
3248         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3249         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3250         if (!method_class_vt->initialized) {
3251                 MonoError error;
3252                 jmp_buf env;
3253                 MonoInvocation *last_env_frame = context->env_frame;
3254                 jmp_buf *old_env = context->current_env;
3255                 error_init (&error);
3256
3257                 if (setjmp(env)) {
3258                         MonoException *failed = context->env_frame->ex;
3259                         context->env_frame->ex = NULL;
3260                         context->env_frame = last_env_frame;
3261                         context->current_env = old_env;
3262                         return failed;
3263                 }
3264                 context->env_frame = context->current_frame;
3265                 context->current_env = &env;
3266                 mono_runtime_class_init_full (method_class_vt, &error);
3267                 if (!mono_error_ok (&error)) {
3268                         return mono_error_convert_to_exception (&error);
3269                 }
3270                 context->env_frame = last_env_frame;
3271                 context->current_env = old_env;
3272         }
3273
3274         mono_profiler_method_jit (method); /* sort of... */
3275
3276         if (mono_method_signature (method)->is_inflated)
3277                 generic_context = mono_method_get_context (method);
3278         else {
3279                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3280                 if (generic_container)
3281                         generic_context = &generic_container->context;
3282         }
3283
3284         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3285                 MonoMethod *nm = NULL;
3286                 mono_os_mutex_lock(&calc_section);
3287                 if (runtime_method->transformed) {
3288                         mono_os_mutex_unlock(&calc_section);
3289                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3290                         return NULL;
3291                 }
3292
3293                 /* assumes all internal calls with an array this are built in... */
3294                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3295                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3296                         signature = mono_method_signature (nm);
3297                 } else {
3298                         const char *name = method->name;
3299                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3300                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3301                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3302                                         g_assert (mi);
3303                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3304                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3305                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3306                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3307                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3308                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3309                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3310                                         nm = mono_marshal_get_delegate_end_invoke (method);
3311                                 }
3312                         }
3313                         if (nm == NULL) {
3314                                 runtime_method->code = g_malloc(sizeof(short));
3315                                 runtime_method->code[0] = MINT_CALLRUN;
3316                         }
3317                 }
3318                 if (nm == NULL) {
3319                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3320                         runtime_method->alloca_size = runtime_method->stack_size;
3321                         runtime_method->transformed = TRUE;
3322                         mono_os_mutex_unlock(&calc_section);
3323                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3324                         return NULL;
3325                 }
3326                 method = nm;
3327                 header = mono_method_get_header (nm);
3328                 mono_os_mutex_unlock(&calc_section);
3329         } else if (method->klass == mono_defaults.array_class) {
3330                 if (!strcmp (method->name, "UnsafeMov")) {
3331                         mono_os_mutex_lock (&calc_section);
3332                         if (!runtime_method->transformed) {
3333                                 runtime_method->code = g_malloc (sizeof (short));
3334                                 runtime_method->code[0] = MINT_CALLRUN;
3335                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
3336                                 runtime_method->alloca_size = runtime_method->stack_size;
3337                                 runtime_method->transformed = TRUE;
3338                         }
3339                         mono_os_mutex_unlock(&calc_section);
3340                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3341                         return NULL;
3342                 } else if (!strcmp (method->name, "UnsafeStore)")) {
3343                         g_error ("TODO");
3344                 } else if (!strcmp (method->name, "UnsafeLoad)")) {
3345                         g_error ("TODO");
3346                 }
3347         }
3348         g_assert ((signature->param_count + signature->hasthis) < 1000);
3349         g_assert (header->max_stack < 10000);
3350         /* intern the strings in the method. */
3351         ip = header->code;
3352         end = ip + header->code_size;
3353
3354         is_bb_start = g_malloc0(header->code_size);
3355         is_bb_start [0] = 1;
3356         while (ip < end) {
3357                 in = *ip;
3358                 if (in == 0xfe) {
3359                         ip++;
3360                         in = *ip + 256;
3361                 }
3362                 else if (in == 0xf0) {
3363                         ip++;
3364                         in = *ip + MONO_CEE_MONO_ICALL;
3365                 }
3366                 opcode = &mono_opcodes [in];
3367                 switch (opcode->argument) {
3368                 case MonoInlineNone:
3369                         ++ip;
3370                         break;
3371                 case MonoInlineString:
3372                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3373                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3374                         ip += 5;
3375                         break;
3376                 case MonoInlineType:
3377                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3378                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
3379                                 mono_class_init (class);
3380                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3381 #if 0
3382                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3383                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3384                                         mono_class_vtable (domain, class);
3385 #endif
3386                         }
3387                         ip += 5;
3388                         break;
3389                 case MonoInlineMethod:
3390                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3391                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3392                                 if (m == NULL) {
3393                                         g_free (is_bb_start);
3394                                         g_error ("FIXME: where to get method and class string?");
3395                                         return NULL;
3396                                         // return mono_get_exception_missing_method ();
3397                                 }
3398                                 mono_class_init (m->klass);
3399                                 if (!mono_class_is_interface (m->klass))
3400                                         mono_class_vtable (domain, m->klass);
3401                         }
3402                         ip += 5;
3403                         break;
3404                 case MonoInlineField:
3405                 case MonoInlineSig:
3406                 case MonoInlineI:
3407                 case MonoInlineTok:
3408                 case MonoShortInlineR:
3409                         ip += 5;
3410                         break;
3411                 case MonoInlineBrTarget:
3412                         offset = read32 (ip + 1);
3413                         ip += 5;
3414                         backwards = offset < 0;
3415                         offset += ip - header->code;
3416                         g_assert (offset >= 0 && offset < header->code_size);
3417                         is_bb_start [offset] |= backwards ? 2 : 1;
3418                         break;
3419                 case MonoShortInlineBrTarget:
3420                         offset = ((gint8 *)ip) [1];
3421                         ip += 2;
3422                         backwards = offset < 0;
3423                         offset += ip - header->code;
3424                         g_assert (offset >= 0 && offset < header->code_size);
3425                         is_bb_start [offset] |= backwards ? 2 : 1;
3426                         break;
3427                 case MonoInlineVar:
3428                         ip += 3;
3429                         break;
3430                 case MonoShortInlineVar:
3431                 case MonoShortInlineI:
3432                         ip += 2;
3433                         break;
3434                 case MonoInlineSwitch: {
3435                         guint32 n;
3436                         const unsigned char *next_ip;
3437                         ++ip;
3438                         n = read32 (ip);
3439                         ip += 4;
3440                         next_ip = ip + 4 * n;
3441                         for (i = 0; i < n; i++) {
3442                                 offset = read32 (ip);
3443                                 backwards = offset < 0;
3444                                 offset += next_ip - header->code;
3445                                 g_assert (offset >= 0 && offset < header->code_size);
3446                                 is_bb_start [offset] |= backwards ? 2 : 1;
3447                                 ip += 4;
3448                         }
3449                         break;
3450                 }
3451                 case MonoInlineR:
3452                 case MonoInlineI8:
3453                         ip += 9;
3454                         break;
3455                 default:
3456                         g_assert_not_reached ();
3457                 }
3458         }
3459         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3460
3461         /* the rest needs to be locked so it is only done once */
3462         mono_os_mutex_lock(&calc_section);
3463         if (runtime_method->transformed) {
3464                 mono_os_mutex_unlock(&calc_section);
3465                 g_free (is_bb_start);
3466                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3467                 return NULL;
3468         }
3469
3470         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3471         runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3472         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3473         offset = 0;
3474         for (i = 0; i < header->num_locals; ++i) {
3475                 size = mono_type_size (header->locals [i], &align);
3476                 offset += align - 1;
3477                 offset &= ~(align - 1);
3478                 runtime_method->local_offsets [i] = offset;
3479                 offset += size;
3480         }
3481         offset = (offset + 7) & ~7;
3482         runtime_method->locals_size = offset;
3483         g_assert (runtime_method->locals_size < 65536);
3484         offset = 0;
3485         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3486
3487         if (signature->hasthis) {
3488                 g_assert (!signature->pinvoke);
3489                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3490                 offset += align - 1;
3491                 offset &= ~(align - 1);
3492                 runtime_method->arg_offsets [0] = offset;
3493                 offset += size;
3494         }
3495
3496         for (i = 0; i < signature->param_count; ++i) {
3497                 if (signature->pinvoke) {
3498                         guint32 dummy;
3499                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3500                         align = 8;
3501                 }
3502                 else
3503                         size = mono_type_stack_size (signature->params [i], &align);
3504                 offset += align - 1;
3505                 offset &= ~(align - 1);
3506                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3507                 offset += size;
3508         }
3509         offset = (offset + 7) & ~7;
3510         runtime_method->args_size = offset;
3511         g_assert (runtime_method->args_size < 10000);
3512
3513         generate (method, runtime_method, is_bb_start, generic_context);
3514
3515         g_free (is_bb_start);
3516
3517         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3518         runtime_method->transformed = TRUE;
3519         mono_os_mutex_unlock(&calc_section);
3520
3521         return NULL;
3522 }
3523