mono/mini/interp/transform.c

   1 /*
   2  * transform CIL into different opcodes for more
   3  * efficient interpretation
   4  *
   5  * Written by Bernie Solomon (bernard@ugsolutions.com)
   6  * Copyright (c) 2004.
   7  */
   8
   9 #include <string.h>
  10 #include <mono/metadata/appdomain.h>
  11 #include <mono/metadata/debug-helpers.h>
  12 #include <mono/metadata/exception.h>
  13 #include <mono/metadata/mono-endian.h>
  14 #include <mono/metadata/marshal.h>
  15 #include <mono/metadata/profiler-private.h>
  16 #include <mono/metadata/tabledefs.h>
  17
  18 #include <mono/mini/mini.h>
  19
  20 #include "mintops.h"
  21 #include "interp-internals.h"
  22 #include "interp.h"
  23
  24 // TODO: export from marshal.c
  25 MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
  26
  27 #define DEBUG 0
  28
  29 typedef struct
  30 {
  31         MonoClass *klass;
  32         unsigned char type;
  33         unsigned char flags;
  34 } StackInfo;
  35
  36 typedef struct
  37 {
  38         MonoMethod *method;
  39         MonoMethodHeader *header;
  40         RuntimeMethod *rtm;
  41         const unsigned char *il_code;
  42         const unsigned char *ip;
  43         const unsigned char *last_ip;
  44         const unsigned char *in_start;
  45         int code_size;
  46         int *in_offsets;
  47         int *forward_refs;
  48         StackInfo **stack_state;
  49         int *stack_height;
  50         int *vt_stack_size;
  51         unsigned char *is_bb_start;
  52         unsigned short *new_code;
  53         unsigned short *new_code_end;
  54         unsigned short *new_ip;
  55         unsigned short *last_new_ip;
  56         unsigned int max_code_size;
  57         StackInfo *stack;
  58         StackInfo *sp;
  59         unsigned int max_stack_height;
  60         unsigned int vt_sp;
  61         unsigned int max_vt_sp;
  62         int n_data_items;
  63         int max_data_items;
  64         void **data_items;
  65         GHashTable *data_hash;
  66 } TransformData;
  67
  68 #define MINT_TYPE_I1 0
  69 #define MINT_TYPE_U1 1
  70 #define MINT_TYPE_I2 2
  71 #define MINT_TYPE_U2 3
  72 #define MINT_TYPE_I4 4
  73 #define MINT_TYPE_I8 5
  74 #define MINT_TYPE_R4 6
  75 #define MINT_TYPE_R8 7
  76 #define MINT_TYPE_O  8
  77 #define MINT_TYPE_P  9
  78 #define MINT_TYPE_VT 10
  79
  80 #define STACK_TYPE_I4 0
  81 #define STACK_TYPE_I8 1
  82 #define STACK_TYPE_R8 2
  83 #define STACK_TYPE_O  3
  84 #define STACK_TYPE_VT 4
  85 #define STACK_TYPE_MP 5
  86 #define STACK_TYPE_F  6
  87
  88 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
  89
  90 #if SIZEOF_VOID_P == 8
  91 #define STACK_TYPE_I STACK_TYPE_I8
  92 #else
  93 #define STACK_TYPE_I STACK_TYPE_I4
  94 #endif
  95
  96 static int stack_type [] = {
  97         STACK_TYPE_I4, /*I1*/
  98         STACK_TYPE_I4, /*U1*/
  99         STACK_TYPE_I4, /*I2*/
 100         STACK_TYPE_I4, /*U2*/
 101         STACK_TYPE_I4, /*I4*/
 102         STACK_TYPE_I8, /*I8*/
 103         STACK_TYPE_R8, /*R4*/
 104         STACK_TYPE_R8, /*R8*/
 105         STACK_TYPE_O,  /*O*/
 106         STACK_TYPE_MP, /*P*/
 107         STACK_TYPE_VT
 108 };
 109
 110 static void
 111 grow_code (TransformData *td)
 112 {
 113         unsigned int old_ip_offset = td->new_ip - td->new_code;
 114         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 115         g_assert (old_ip_offset <= td->max_code_size);
 116         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 117         td->new_code_end = td->new_code + td->max_code_size;
 118         td->new_ip = td->new_code + old_ip_offset;
 119         td->last_new_ip = td->new_code + old_last_ip_offset;
 120 }
 121
 122 #define ENSURE_CODE(td, n) \
 123         do { \
 124                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 125                         grow_code (td); \
 126         } while (0)
 127
 128 #define ADD_CODE(td, n) \
 129         do { \
 130                 if ((td)->new_ip == (td)->new_code_end) \
 131                         grow_code (td); \
 132                 *(td)->new_ip++ = (n); \
 133         } while (0)
 134
 135 #define CHECK_STACK(td, n) \
 136         do { \
 137                 int stack_size = (td)->sp - (td)->stack; \
 138                 if (stack_size < (n)) \
 139                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 140                                 (td)->method->klass->name, (td)->method->name, \
 141                                 stack_size, n, (td)->ip - (td)->il_code); \
 142         } while (0)
 143
 144 #define ENSURE_I4(td, sp_off) \
 145         do { \
 146                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 147                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 148         } while (0)
 149
 150 static void
 151 handle_branch(TransformData *td, int short_op, int long_op, int offset)
 152 {
 153         int shorten_branch = 0;
 154         int target = td->ip + offset - td->il_code;
 155         if (target < 0 || target >= td->code_size)
 156                 g_assert_not_reached ();
 157         if (offset > 0 && td->stack_height [target] < 0) {
 158                 td->stack_height [target] = td->sp - td->stack;
 159                 if (td->stack_height [target] > 0)
 160                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 161                 td->vt_stack_size [target] = td->vt_sp;
 162         }
 163         if (offset < 0) {
 164                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 165                 if (offset >= -32768) {
 166                         shorten_branch = 1;
 167                 }
 168         } else {
 169                 int prev = td->forward_refs [target];
 170                 td->forward_refs [td->ip - td->il_code] = prev;
 171                 td->forward_refs [target] = td->ip - td->il_code;
 172                 offset = 0;
 173                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 174                         shorten_branch = 1;
 175         }
 176         if (shorten_branch) {
 177                 ADD_CODE(td, short_op);
 178                 ADD_CODE(td, offset);
 179         } else {
 180                 ADD_CODE(td, long_op);
 181                 ADD_CODE(td, * (unsigned short *)(&offset));
 182                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 183         }
 184 }
 185
 186 static void
 187 one_arg_branch(TransformData *td, int mint_op, int offset)
 188 {
 189         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 190         int long_op = mint_op + type - STACK_TYPE_I4;
 191         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 192         CHECK_STACK(td, 1);
 193         --td->sp;
 194         handle_branch (td, short_op, long_op, offset);
 195 }
 196
 197 static void
 198 two_arg_branch(TransformData *td, int mint_op, int offset)
 199 {
 200         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 201         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 202         int long_op = mint_op + type1 - STACK_TYPE_I4;
 203         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 204         CHECK_STACK(td, 2);
 205         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 206                 ADD_CODE(td, MINT_CONV_I8_I4);
 207                 td->in_offsets [td->ip - td->il_code]++;
 208         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 209                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 210                 td->in_offsets [td->ip - td->il_code]++;
 211         } else if (type1 != type2) {
 212                 g_warning("%s.%s: branch type mismatch %d %d",
 213                         td->method->klass->name, td->method->name,
 214                         td->sp [-1].type, td->sp [-2].type);
 215         }
 216         td->sp -= 2;
 217         handle_branch (td, short_op, long_op, offset);
 218 }
 219
 220 static void
 221 unary_arith_op(TransformData *td, int mint_op)
 222 {
 223         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 224         CHECK_STACK(td, 1);
 225         ADD_CODE(td, op);
 226 }
 227
 228 static void
 229 binary_arith_op(TransformData *td, int mint_op)
 230 {
 231         int type1 = td->sp [-2].type;
 232         int type2 = td->sp [-1].type;
 233         int op;
 234 #if SIZEOF_VOID_P == 8
 235         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 236                 ADD_CODE(td, MINT_CONV_I8_I4);
 237                 type2 = STACK_TYPE_I8;
 238         }
 239         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 240                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 241                 type1 = STACK_TYPE_I8;
 242                 td->sp [-2].type = STACK_TYPE_I8;
 243         }
 244 #endif
 245         if (type1 == STACK_TYPE_MP)
 246                 type1 = STACK_TYPE_I;
 247         if (type2 == STACK_TYPE_MP)
 248                 type2 = STACK_TYPE_I;
 249         if (type1 != type2) {
 250                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 251                         td->method->klass->name, td->method->name,
 252                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 253         }
 254         op = mint_op + type1 - STACK_TYPE_I4;
 255         CHECK_STACK(td, 2);
 256         ADD_CODE(td, op);
 257         --td->sp;
 258 }
 259
 260 static void
 261 binary_int_op(TransformData *td, int mint_op)
 262 {
 263         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 264         CHECK_STACK(td, 2);
 265         if (td->sp [-1].type != td->sp [-2].type)
 266                 g_warning("%s.%s: int type mismatch", td->method->klass->name, td->method->name);
 267         ADD_CODE(td, op);
 268         --td->sp;
 269 }
 270
 271 static void
 272 shift_op(TransformData *td, int mint_op)
 273 {
 274         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 275         CHECK_STACK(td, 2);
 276         if (td->sp [-1].type != STACK_TYPE_I4) {
 277                 g_warning("%s.%s: shift type mismatch %d",
 278                         td->method->klass->name, td->method->name,
 279                         td->sp [-2].type);
 280         }
 281         ADD_CODE(td, op);
 282         --td->sp;
 283 }
 284
 285 static int
 286 mint_type(MonoType *type)
 287 {
 288         if (type->byref)
 289                 return MINT_TYPE_P;
 290 enum_type:
 291         switch (type->type) {
 292         case MONO_TYPE_I1:
 293                 return MINT_TYPE_I1;
 294         case MONO_TYPE_U1:
 295         case MONO_TYPE_BOOLEAN:
 296                 return MINT_TYPE_U1;
 297         case MONO_TYPE_I2:
 298                 return MINT_TYPE_I2;
 299         case MONO_TYPE_U2:
 300         case MONO_TYPE_CHAR:
 301                 return MINT_TYPE_U2;
 302         case MONO_TYPE_I4:
 303         case MONO_TYPE_U4:
 304                 return MINT_TYPE_I4;
 305         case MONO_TYPE_I:
 306         case MONO_TYPE_U:
 307 #if SIZEOF_VOID_P == 4
 308                 return MINT_TYPE_I4;
 309 #else
 310                 return MINT_TYPE_I8;
 311 #endif
 312         case MONO_TYPE_PTR:
 313                 return MINT_TYPE_P;
 314         case MONO_TYPE_R4:
 315                 return MINT_TYPE_R4;
 316         case MONO_TYPE_I8:
 317         case MONO_TYPE_U8:
 318                 return MINT_TYPE_I8;
 319         case MONO_TYPE_R8:
 320                 return MINT_TYPE_R8;
 321         case MONO_TYPE_STRING:
 322         case MONO_TYPE_SZARRAY:
 323         case MONO_TYPE_CLASS:
 324         case MONO_TYPE_OBJECT:
 325         case MONO_TYPE_ARRAY:
 326                 return MINT_TYPE_O;
 327         case MONO_TYPE_VALUETYPE:
 328                 if (type->data.klass->enumtype) {
 329                         type = mono_class_enum_basetype (type->data.klass);
 330                         goto enum_type;
 331                 } else
 332                         return MINT_TYPE_VT;
 333         case MONO_TYPE_GENERICINST:
 334                 type = &type->data.generic_class->container_class->byval_arg;
 335                 goto enum_type;
 336         default:
 337                 g_warning ("got type 0x%02x", type->type);
 338                 g_assert_not_reached ();
 339         }
 340         return -1;
 341 }
 342
 343 static int
 344 can_store (int stack_type, int var_type)
 345 {
 346         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 347                 stack_type = STACK_TYPE_I;
 348         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 349                 var_type = STACK_TYPE_I;
 350         return stack_type == var_type;
 351 }
 352
 353 #define SET_SIMPLE_TYPE(s, ty) \
 354         do { \
 355                 (s)->type = (ty); \
 356                 (s)->flags = 0; \
 357                 (s)->klass = NULL; \
 358         } while (0)
 359
 360 #define SET_TYPE(s, ty, k) \
 361         do { \
 362                 (s)->type = (ty); \
 363                 (s)->flags = 0; \
 364                 (s)->klass = k; \
 365         } while (0)
 366
 367 #define PUSH_SIMPLE_TYPE(td, ty) \
 368         do { \
 369                 int sp_height; \
 370                 (td)->sp++; \
 371                 sp_height = (td)->sp - (td)->stack; \
 372                 if (sp_height > (td)->max_stack_height) \
 373                         (td)->max_stack_height = sp_height; \
 374                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 375         } while (0)
 376
 377 #define PUSH_TYPE(td, ty, k) \
 378         do { \
 379                 int sp_height; \
 380                 (td)->sp++; \
 381                 sp_height = (td)->sp - (td)->stack; \
 382                 if (sp_height > (td)->max_stack_height) \
 383                         (td)->max_stack_height = sp_height; \
 384                 SET_TYPE((td)->sp - 1, ty, k); \
 385         } while (0)
 386
 387 #define PUSH_VT(td, size) \
 388         do { \
 389                 (td)->vt_sp += ((size) + 7) & ~7; \
 390                 if ((td)->vt_sp > (td)->max_vt_sp) \
 391                         (td)->max_vt_sp = (td)->vt_sp; \
 392         } while (0)
 393
 394 #define POP_VT(td, size) \
 395         do { \
 396                 (td)->vt_sp -= ((size) + 7) & ~7; \
 397         } while (0)
 398
 399 #if NO_UNALIGNED_ACCESS
 400 #define WRITE32(td, v) \
 401         do { \
 402                 ENSURE_CODE(td, 2); \
 403                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 404                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 405                 (td)->new_ip += 2; \
 406         } while (0)
 407
 408 #define WRITE64(td, v) \
 409         do { \
 410                 ENSURE_CODE(td, 4); \
 411                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 412                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 413                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 414                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 415                 (td)->new_ip += 4; \
 416         } while (0)
 417 #else
 418 #define WRITE32(td, v) \
 419         do { \
 420                 ENSURE_CODE(td, 2); \
 421                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 422                 (td)->new_ip += 2; \
 423         } while (0)
 424
 425 #define WRITE64(td, v) \
 426         do { \
 427                 ENSURE_CODE(td, 4); \
 428                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 429                 (td)->new_ip += 4; \
 430         } while (0)
 431
 432 #endif
 433
 434 static void
 435 load_arg(TransformData *td, int n)
 436 {
 437         int mt;
 438         MonoClass *klass = NULL;
 439         MonoType *type;
 440
 441         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 442         if (hasthis && n == 0)
 443                 type = &td->method->klass->byval_arg;
 444         else
 445                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 446
 447         mt = mint_type (type);
 448         if (mt == MINT_TYPE_VT) {
 449                 gint32 size;
 450                 klass = mono_class_from_mono_type (type);
 451                 if (mono_method_signature (td->method)->pinvoke)
 452                         size = mono_class_native_size (klass, NULL);
 453                 else
 454                         size = mono_class_value_size (klass, NULL);
 455
 456                 if (hasthis && n == 0) {
 457                         mt = MINT_TYPE_P;
 458                         ADD_CODE (td, MINT_LDARG_P);
 459                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 460                         klass = NULL;
 461                 } else {
 462                         PUSH_VT (td, size);
 463                         ADD_CODE (td, MINT_LDARG_VT);
 464                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 465                         WRITE32 (td, &size);
 466                 }
 467         } else {
 468                 if (hasthis && n == 0) {
 469                         mt = MINT_TYPE_P;
 470                         ADD_CODE (td, MINT_LDARG_P);
 471                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 472                         klass = NULL;
 473                 } else {
 474                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 475                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 476                         if (mt == MINT_TYPE_O)
 477                                 klass = mono_class_from_mono_type (type);
 478                 }
 479         }
 480         PUSH_TYPE(td, stack_type[mt], klass);
 481 }
 482
 483 static void
 484 store_arg(TransformData *td, int n)
 485 {
 486         int mt;
 487         CHECK_STACK (td, 1);
 488         MonoType *type;
 489
 490         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 491         if (hasthis && n == 0)
 492                 type = &td->method->klass->byval_arg;
 493         else
 494                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 495
 496         mt = mint_type (type);
 497         if (mt == MINT_TYPE_VT) {
 498                 gint32 size;
 499                 g_error ("data.klass");
 500                 if (mono_method_signature (td->method)->pinvoke)
 501                         size = mono_class_native_size (type->data.klass, NULL);
 502                 else
 503                         size = mono_class_value_size (type->data.klass, NULL);
 504                 ADD_CODE(td, MINT_STARG_VT);
 505                 ADD_CODE(td, n);
 506                 WRITE32(td, &size);
 507                 if (td->sp [-1].type == STACK_TYPE_VT)
 508                         POP_VT(td, size);
 509         } else {
 510                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 511                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 512         }
 513         --td->sp;
 514 }
 515
 516 static void
 517 store_inarg(TransformData *td, int n)
 518 {
 519         MonoType *type;
 520         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 521         if (hasthis && n == 0)
 522                 type = &td->method->klass->byval_arg;
 523         else
 524                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 525
 526         int mt = mint_type (type);
 527         if (hasthis && n == 0) {
 528                 ADD_CODE (td, MINT_STINARG_P);
 529                 ADD_CODE (td, n);
 530                 return;
 531         }
 532         if (mt == MINT_TYPE_VT) {
 533                 MonoClass *klass = mono_class_from_mono_type (type);
 534                 gint32 size;
 535                 if (mono_method_signature (td->method)->pinvoke)
 536                         size = mono_class_native_size (klass, NULL);
 537                 else
 538                         size = mono_class_value_size (klass, NULL);
 539                 ADD_CODE(td, MINT_STINARG_VT);
 540                 ADD_CODE(td, n);
 541                 WRITE32(td, &size);
 542         } else {
 543                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 544                 ADD_CODE(td, n);
 545         }
 546 }
 547
 548 static void
 549 load_local(TransformData *td, int n)
 550 {
 551         MonoType *type = td->header->locals [n];
 552         int mt = mint_type (type);
 553         int offset = td->rtm->local_offsets [n];
 554         MonoClass *klass = NULL;
 555         if (mt == MINT_TYPE_VT) {
 556                 klass = mono_class_from_mono_type (type);
 557                 gint32 size = mono_class_value_size (klass, NULL);
 558                 PUSH_VT(td, size);
 559                 ADD_CODE(td, MINT_LDLOC_VT);
 560                 ADD_CODE(td, offset); /*FIX for large offset */
 561                 WRITE32(td, &size);
 562         } else {
 563                 g_assert (mt < MINT_TYPE_VT);
 564                 if (mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 565                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 566                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 567                 } else if (mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 568                         td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 569                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 570                 } else {
 571                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 572                         ADD_CODE(td, offset); /*FIX for large offset */
 573                 }
 574                 if (mt == MINT_TYPE_O)
 575                         klass = mono_class_from_mono_type (type);
 576         }
 577         PUSH_TYPE(td, stack_type[mt], klass);
 578 }
 579
 580 static void
 581 store_local(TransformData *td, int n)
 582 {
 583         MonoType *type = td->header->locals [n];
 584         int mt = mint_type (type);
 585         int offset = td->rtm->local_offsets [n];
 586         CHECK_STACK (td, 1);
 587 #if SIZEOF_VOID_P == 8
 588         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 589                 ADD_CODE(td, MINT_CONV_I8_I4);
 590                 td->sp [-1].type = STACK_TYPE_I8;
 591         }
 592 #endif
 593         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 594                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 595                         td->method->klass->name, td->method->name,
 596                         stack_type [mt], td->sp [-1].type);
 597         }
 598         if (mt == MINT_TYPE_VT) {
 599                 MonoClass *klass = mono_class_from_mono_type (type);
 600                 gint32 size = mono_class_value_size (klass, NULL);
 601                 ADD_CODE(td, MINT_STLOC_VT);
 602                 ADD_CODE(td, offset); /*FIX for large offset */
 603                 WRITE32(td, &size);
 604                 if (td->sp [-1].type == STACK_TYPE_VT)
 605                         POP_VT(td, size);
 606         } else {
 607                 g_assert (mt < MINT_TYPE_VT);
 608                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 609                 ADD_CODE(td, offset); /*FIX for large offset */
 610         }
 611         --td->sp;
 612 }
 613
 614 #define SIMPLE_OP(td, op) \
 615         do { \
 616                 ADD_CODE(&td, op); \
 617                 ++td.ip; \
 618         } while (0)
 619
 620 static guint16
 621 get_data_item_index (TransformData *td, void *ptr)
 622 {
 623         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 624         guint index;
 625         if (p != NULL)
 626                 return GPOINTER_TO_UINT (p) - 1;
 627         if (td->max_data_items == td->n_data_items) {
 628                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 629                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 630         }
 631         index = td->n_data_items;
 632         td->data_items [index] = ptr;
 633         ++td->n_data_items;
 634         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 635         return index;
 636 }
 637
 638 static void
 639 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)
 640 {
 641         MonoImage *image = method->klass->image;
 642         MonoMethodSignature *csignature;
 643         MonoError error;
 644         int virtual = *td->ip == CEE_CALLVIRT;
 645         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 646         int i;
 647         guint32 vt_stack_used = 0;
 648         guint32 vt_res_size = 0;
 649         int op = -1;
 650         int native = 0;
 651         int is_void = 0;
 652
 653         guint32 token = read32 (td->ip + 1);
 654
 655         if (target_method == NULL) {
 656                 if (calli) {
 657                         CHECK_STACK(td, 1);
 658                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 659                         --td->sp;
 660                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 661                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 662                         else
 663                                 csignature = mono_metadata_parse_signature (image, token);
 664
 665                         if (generic_context) {
 666                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 667                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 668                         }
 669
 670                         target_method = NULL;
 671                 } else {
 672                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 673                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 674                         else
 675                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 676                         csignature = mono_method_signature (target_method);
 677                         if (target_method->klass == mono_defaults.string_class) {
 678                                 if (target_method->name [0] == 'g') {
 679                                         if (strcmp (target_method->name, "get_Chars") == 0)
 680                                                 op = MINT_GETCHR;
 681                                         else if (strcmp (target_method->name, "get_Length") == 0)
 682                                                 op = MINT_STRLEN;
 683                                 }
 684                         } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 685                                 if (!strcmp (target_method->name, "get_Rank")) {
 686                                         op = MINT_ARRAY_RANK;
 687                                 } else if (!strcmp (target_method->name, "get_Length")) {
 688                                         op = MINT_LDLEN;
 689                                 } else if (!strcmp (target_method->name, "Address")) {
 690                                         op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 691                                 }
 692                         } else if (target_method && generic_context) {
 693                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 694                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 695                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 696                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 697                         }
 698                 }
 699         } else {
 700                 csignature = mono_method_signature (target_method);
 701         }
 702
 703         if (constrained_class) {
 704                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 705                         /* Use the corresponding method from the base type to avoid boxing */
 706                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 707                         g_assert (base_type);
 708                         constrained_class = mono_class_from_mono_type (base_type);
 709                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 710                         g_assert (target_method);
 711                 }
 712         }
 713
 714         if (constrained_class) {
 715                 mono_class_setup_vtable (constrained_class);
 716 #if DEBUG_INTERP
 717                 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);
 718 #endif
 719                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 720 #if DEBUG_INTERP
 721                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 722 #endif
 723                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 724                 mono_class_setup_vtable (target_method->klass);
 725
 726                 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)) {
 727                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 728                                 /* managed pointer on the stack, we need to deref that puppy */
 729                                 ADD_CODE (td, MINT_LDIND_I);
 730                                 ADD_CODE (td, csignature->param_count);
 731                         }
 732                         ADD_CODE (td, MINT_BOX);
 733                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 734                         ADD_CODE (td, csignature->param_count);
 735                 } else if (!constrained_class->valuetype) {
 736                         /* managed pointer on the stack, we need to deref that puppy */
 737                         ADD_CODE (td, MINT_LDIND_I);
 738                         ADD_CODE (td, csignature->param_count);
 739                 } else {
 740                         if (target_method->klass->valuetype) {
 741                                 /* Own method */
 742                         } else {
 743                                 /* Interface method */
 744                                 int ioffset, slot;
 745
 746                                 mono_class_setup_vtable (constrained_class);
 747                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 748                                 if (ioffset == -1)
 749                                         g_error ("type load error: constrained_class");
 750                                 slot = mono_method_get_vtable_slot (target_method);
 751                                 if (slot == -1)
 752                                         g_error ("type load error: target_method->klass");
 753                                 target_method = constrained_class->vtable [ioffset + slot];
 754
 755                                 if (target_method->klass == mono_defaults.enum_class) {
 756                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 757                                                 /* managed pointer on the stack, we need to deref that puppy */
 758                                                 ADD_CODE (td, MINT_LDIND_I);
 759                                                 ADD_CODE (td, csignature->param_count);
 760                                         }
 761                                         ADD_CODE (td, MINT_BOX);
 762                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 763                                         ADD_CODE (td, csignature->param_count);
 764                                 }
 765                         }
 766                         virtual = FALSE;
 767                 }
 768         }
 769
 770         if (target_method)
 771                 mono_class_init (target_method->klass);
 772
 773         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 774         if (!calli && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 775                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 776                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
 777                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 778                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 779
 780                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 781                         int offset;
 782                         if (mono_interp_traceopt)
 783                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 784                         for (i = csignature->param_count - 1; i >= 0; --i)
 785                                 store_arg (td, i + csignature->hasthis);
 786
 787                         ADD_CODE(td, MINT_BR_S);
 788                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 789                         ADD_CODE(td, offset);
 790                         if (!is_bb_start [td->ip + 5 - td->il_code])
 791                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 792                         td->ip += 5;
 793                         return;
 794                 } else {
 795                         /* mheader might not exist if this is a delegate invoc, etc */
 796                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 797                                 if (mono_interp_traceopt)
 798                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 799                                 for (i = 0; i < csignature->param_count; i++)
 800                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 801                                         ADD_CODE (td, 0);
 802                                 if (csignature->hasthis) {
 803                                         if (virtual)
 804                                                 ADD_CODE(td, MINT_CKNULL);
 805                                         ADD_CODE (td, MINT_POP);
 806                                         ADD_CODE (td, 0);
 807                                 }
 808                                 td->sp -= csignature->param_count + csignature->hasthis;
 809                                 td->ip += 5;
 810                                 return;
 811                         }
 812                 }
 813         }
 814         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 815                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 816                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 817                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 818                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 819         }
 820         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 821         td->sp -= csignature->param_count + !!csignature->hasthis;
 822         for (i = 0; i < csignature->param_count; ++i) {
 823                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 824                         gint32 size;
 825                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 826                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 827                                 size = mono_class_native_size (klass, NULL);
 828                         else
 829                                 size = mono_class_value_size (klass, NULL);
 830                         size = (size + 7) & ~7;
 831                         vt_stack_used += size;
 832                 }
 833         }
 834
 835         /* need to handle typedbyref ... */
 836         if (csignature->ret->type != MONO_TYPE_VOID) {
 837                 int mt = mint_type(csignature->ret);
 838                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 839                 if (mt == MINT_TYPE_VT) {
 840                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 841                                 vt_res_size = mono_class_native_size (klass, NULL);
 842                         else
 843                                 vt_res_size = mono_class_value_size (klass, NULL);
 844                         PUSH_VT(td, vt_res_size);
 845                 }
 846                 PUSH_TYPE(td, stack_type[mt], klass);
 847         } else
 848                 is_void = TRUE;
 849
 850         if (op >= 0) {
 851                 ADD_CODE (td, op);
 852 #if SIZEOF_VOID_P == 8
 853                 if (op == MINT_LDLEN)
 854                         ADD_CODE (td, MINT_CONV_I4_I8);
 855 #endif
 856                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 857                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 858                         ADD_CODE (td, 1 + target_method->klass->rank);
 859                 }
 860         } else {
 861                 if (calli)
 862                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 863                 else if (virtual)
 864                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 865                 else
 866                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 867
 868                 if (calli) {
 869                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 870                 } else {
 871                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 872                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 873                 }
 874         }
 875         td->ip += 5;
 876         if (vt_stack_used != 0 || vt_res_size != 0) {
 877                 ADD_CODE(td, MINT_VTRESULT);
 878                 ADD_CODE(td, vt_res_size);
 879                 WRITE32(td, &vt_stack_used);
 880                 td->vt_sp -= vt_stack_used;
 881         }
 882 }
 883
 884 static void
 885 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
 886 {
 887         MonoMethodHeader *header = mono_method_get_header (method);
 888         MonoMethodSignature *signature = mono_method_signature (method);
 889         MonoImage *image = method->klass->image;
 890         MonoDomain *domain = mono_domain_get ();
 891         MonoClass *constrained_class = NULL;
 892         MonoError error;
 893         int offset, mt, i, i32;
 894         gboolean readonly = FALSE;
 895         MonoClass *klass;
 896         MonoClassField *field;
 897         const unsigned char *end;
 898         int new_in_start_offset;
 899         int body_start_offset;
 900         int target;
 901         guint32 token;
 902         TransformData td;
 903         int generating_code = 1;
 904
 905         memset(&td, 0, sizeof(td));
 906         td.method = method;
 907         td.rtm = rtm;
 908         td.is_bb_start = is_bb_start;
 909         td.il_code = header->code;
 910         td.code_size = header->code_size;
 911         td.header = header;
 912         td.max_code_size = td.code_size;
 913         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 914         td.new_code_end = td.new_code + td.max_code_size;
 915         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 916         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 917         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 918         td.stack_height = g_malloc(header->code_size * sizeof(int));
 919         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 920         td.n_data_items = 0;
 921         td.max_data_items = 0;
 922         td.data_items = NULL;
 923         td.data_hash = g_hash_table_new (NULL, NULL);
 924         rtm->data_items = td.data_items;
 925         for (i = 0; i < header->code_size; i++) {
 926                 td.forward_refs [i] = -1;
 927                 td.stack_height [i] = -1;
 928         }
 929         td.new_ip = td.new_code;
 930         td.last_new_ip = NULL;
 931
 932         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
 933         td.sp = td.stack;
 934         td.max_stack_height = 0;
 935
 936         for (i = 0; i < header->num_clauses; i++) {
 937                 MonoExceptionClause *c = header->clauses + i;
 938                 td.stack_height [c->handler_offset] = 0;
 939                 td.vt_stack_size [c->handler_offset] = 0;
 940                 td.is_bb_start [c->handler_offset] = 1;
 941
 942                 td.stack_height [c->handler_offset] = 1;
 943                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 944                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 945                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 946         }
 947
 948         td.ip = header->code;
 949         end = td.ip + header->code_size;
 950
 951         if (mono_interp_traceopt) {
 952                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 953                 char *name = mono_method_full_name (method, TRUE);
 954                 g_print ("Method %s, original code:\n", name);
 955                 g_print ("%s\n", tmp);
 956                 g_free (tmp);
 957                 g_free (name);
 958         }
 959
 960         if (signature->hasthis)
 961                 store_inarg (&td, 0);
 962         for (i = 0; i < signature->param_count; i++)
 963                 store_inarg (&td, i + !!signature->hasthis);
 964
 965         body_start_offset = td.new_ip - td.new_code;
 966
 967         for (i = 0; i < header->num_locals; i++) {
 968                 int mt = mint_type(header->locals [i]);
 969                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
 970                         ADD_CODE(&td, MINT_INITLOCALS);
 971                         break;
 972                 }
 973         }
 974
 975         while (td.ip < end) {
 976                 int in_offset;
 977
 978                 g_assert (td.sp >= td.stack);
 979                 g_assert (td.vt_sp < 0x10000000);
 980                 in_offset = td.ip - header->code;
 981                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
 982                 new_in_start_offset = td.new_ip - td.new_code;
 983                 td.in_start = td.ip;
 984                 while (td.forward_refs [in_offset] >= 0) {
 985                         int j = td.forward_refs [in_offset];
 986                         int slot;
 987                         td.forward_refs [in_offset] = td.forward_refs [j];
 988                         if (td.in_offsets [j] < 0) {
 989                                 int old_switch_offset = -td.in_offsets [j];
 990                                 int new_switch_offset = td.in_offsets [old_switch_offset];
 991                                 int switch_case = (j - old_switch_offset - 5) / 4;
 992                                 int n_cases = read32 (header->code + old_switch_offset + 1);
 993                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
 994                                 slot = new_switch_offset + 3 + 2 * switch_case;
 995                                 td.new_code [slot] = * (unsigned short *)(&offset);
 996                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
 997                         } else {
 998                                 int op = td.new_code [td.in_offsets [j]];
 999                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1000                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1001                                         g_assert (offset <= 32767);
1002                                         slot = td.in_offsets [j] + 1;
1003                                         td.new_code [slot] = offset;
1004                                 } else {
1005                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1006                                         slot = td.in_offsets [j] + 1;
1007                                         td.new_code [slot] = * (unsigned short *)(&offset);
1008                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1009                                 }
1010                         }
1011                 }
1012                 if (td.stack_height [in_offset] >= 0) {
1013                         g_assert (is_bb_start [in_offset]);
1014                         if (td.stack_height [in_offset] > 0)
1015                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1016                         td.sp = td.stack + td.stack_height [in_offset];
1017                         td.vt_sp = td.vt_stack_size [in_offset];
1018                 }
1019                 if (is_bb_start [in_offset]) {
1020                         generating_code = 1;
1021                 }
1022                 if (!generating_code) {
1023                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1024                                 ++td.ip;
1025                         continue;
1026                 }
1027                 if (mono_interp_traceopt > 1) {
1028                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1029                                 td.ip - td.il_code,
1030                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1031                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1032                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1033                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1034                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1035                                 (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) : "",
1036                                 td.vt_sp, td.max_vt_sp);
1037                 }
1038                 switch (*td.ip) {
1039                 case CEE_NOP:
1040                         /* lose it */
1041                         ++td.ip;
1042                         break;
1043                 case CEE_BREAK:
1044                         SIMPLE_OP(td, MINT_BREAK);
1045                         break;
1046                 case CEE_LDARG_0:
1047                 case CEE_LDARG_1:
1048                 case CEE_LDARG_2:
1049                 case CEE_LDARG_3:
1050                         load_arg (&td, *td.ip - CEE_LDARG_0);
1051                         ++td.ip;
1052                         break;
1053                 case CEE_LDLOC_0:
1054                 case CEE_LDLOC_1:
1055                 case CEE_LDLOC_2:
1056                 case CEE_LDLOC_3:
1057                         load_local (&td, *td.ip - CEE_LDLOC_0);
1058                         ++td.ip;
1059                         break;
1060                 case CEE_STLOC_0:
1061                 case CEE_STLOC_1:
1062                 case CEE_STLOC_2:
1063                 case CEE_STLOC_3:
1064                         store_local (&td, *td.ip - CEE_STLOC_0);
1065                         ++td.ip;
1066                         break;
1067                 case CEE_LDARG_S:
1068                         load_arg (&td, ((guint8 *)td.ip)[1]);
1069                         td.ip += 2;
1070                         break;
1071                 case CEE_LDARGA_S: {
1072                         /* NOTE: n includes this */
1073                         int n = ((guint8 *)td.ip)[1];
1074                         if (n == 0 && signature->hasthis) {
1075                                 g_error ("LDTHISA: NOPE");
1076                                 ADD_CODE(&td, MINT_LDTHISA);
1077                         }
1078                         else {
1079                                 ADD_CODE(&td, MINT_LDARGA);
1080                                 ADD_CODE(&td, td.rtm->arg_offsets [n]);
1081                         }
1082                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1083                         td.ip += 2;
1084                         break;
1085                 }
1086                 case CEE_STARG_S:
1087                         store_arg (&td, ((guint8 *)td.ip)[1]);
1088                         td.ip += 2;
1089                         break;
1090                 case CEE_LDLOC_S:
1091                         load_local (&td, ((guint8 *)td.ip)[1]);
1092                         td.ip += 2;
1093                         break;
1094                 case CEE_LDLOCA_S:
1095                         ADD_CODE(&td, MINT_LDLOCA_S);
1096                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1097                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1098                         td.ip += 2;
1099                         break;
1100                 case CEE_STLOC_S:
1101                         store_local (&td, ((guint8 *)td.ip)[1]);
1102                         td.ip += 2;
1103                         break;
1104                 case CEE_LDNULL:
1105                         SIMPLE_OP(td, MINT_LDNULL);
1106                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1107                         break;
1108                 case CEE_LDC_I4_M1:
1109                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1110                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1111                         break;
1112                 case CEE_LDC_I4_0:
1113                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1114                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1115                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1116                                 td.ip += 2;
1117                         } else {
1118                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1119                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1120                         }
1121                         break;
1122                 case CEE_LDC_I4_1:
1123                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1124                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1125                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1126                                 td.ip += 2;
1127                         } else {
1128                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1129                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1130                         }
1131                         break;
1132                 case CEE_LDC_I4_2:
1133                 case CEE_LDC_I4_3:
1134                 case CEE_LDC_I4_4:
1135                 case CEE_LDC_I4_5:
1136                 case CEE_LDC_I4_6:
1137                 case CEE_LDC_I4_7:
1138                 case CEE_LDC_I4_8:
1139                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1140                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1141                         break;
1142                 case CEE_LDC_I4_S:
1143                         ADD_CODE(&td, MINT_LDC_I4_S);
1144                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1145                         td.ip += 2;
1146                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1147                         break;
1148                 case CEE_LDC_I4:
1149                         i32 = read32 (td.ip + 1);
1150                         ADD_CODE(&td, MINT_LDC_I4);
1151                         WRITE32(&td, &i32);
1152                         td.ip += 5;
1153                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1154                         break;
1155                 case CEE_LDC_I8: {
1156                         gint64 val = read64 (td.ip + 1);
1157                         ADD_CODE(&td, MINT_LDC_I8);
1158                         WRITE64(&td, &val);
1159                         td.ip += 9;
1160                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1161                         break;
1162                 }
1163                 case CEE_LDC_R4: {
1164                         float val;
1165                         readr4 (td.ip + 1, &val);
1166                         ADD_CODE(&td, MINT_LDC_R4);
1167                         WRITE32(&td, &val);
1168                         td.ip += 5;
1169                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1170                         break;
1171                 }
1172                 case CEE_LDC_R8: {
1173                         double val;
1174                         readr8 (td.ip + 1, &val);
1175                         ADD_CODE(&td, MINT_LDC_R8);
1176                         WRITE64(&td, &val);
1177                         td.ip += 9;
1178                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1179                         break;
1180                 }
1181                 case CEE_DUP: {
1182                         int type = td.sp [-1].type;
1183                         MonoClass *klass = td.sp [-1].klass;
1184                         if (td.sp [-1].type == STACK_TYPE_VT) {
1185                                 gint32 size = mono_class_value_size (klass, NULL);
1186                                 PUSH_VT(&td, size);
1187                                 ADD_CODE(&td, MINT_DUP_VT);
1188                                 WRITE32(&td, &size);
1189                                 td.ip ++;
1190                         } else
1191                                 SIMPLE_OP(td, MINT_DUP);
1192                         PUSH_TYPE(&td, type, klass);
1193                         break;
1194                 }
1195                 case CEE_POP:
1196                         CHECK_STACK(&td, 1);
1197                         SIMPLE_OP(td, MINT_POP);
1198                         ADD_CODE (&td, 0);
1199                         if (td.sp [-1].type == STACK_TYPE_VT) {
1200                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1201                                 size = (size + 7) & ~7;
1202                                 ADD_CODE(&td, MINT_VTRESULT);
1203                                 ADD_CODE(&td, 0);
1204                                 WRITE32(&td, &size);
1205                                 td.vt_sp -= size;
1206                         }
1207                         --td.sp;
1208                         break;
1209                 case CEE_JMP: {
1210                         MonoMethod *m;
1211                         if (td.sp > td.stack)
1212                                 g_warning ("CEE_JMP: stack must be empty");
1213                         token = read32 (td.ip + 1);
1214                         m = mono_get_method_full (image, token, NULL, generic_context);
1215                         ADD_CODE (&td, MINT_JMP);
1216                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1217                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1218                         td.ip += 5;
1219                         break;
1220                 }
1221                 case CEE_CALLVIRT: /* Fall through */
1222                 case CEE_CALLI:    /* Fall through */
1223                 case CEE_CALL: {
1224                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1225                         constrained_class = NULL;
1226                         readonly = FALSE;
1227                         break;
1228                 }
1229                 case CEE_RET: {
1230                         int vt_size = 0;
1231                         if (signature->ret->type != MONO_TYPE_VOID) {
1232                                 --td.sp;
1233                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1234                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1235                                         vt_size = mono_class_value_size (klass, NULL);
1236                                         vt_size = (vt_size + 7) & ~7;
1237                                 }
1238                         }
1239                         if (td.sp > td.stack)
1240                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1241                         if (td.vt_sp != vt_size)
1242                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1243                         if (vt_size == 0)
1244                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1245                         else {
1246                                 ADD_CODE(&td, MINT_RET_VT);
1247                                 WRITE32(&td, &vt_size);
1248                                 ++td.ip;
1249                         }
1250                         generating_code = 0;
1251                         break;
1252                 }
1253                 case CEE_BR:
1254                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1255                         td.ip += 5;
1256                         generating_code = 0;
1257                         break;
1258                 case CEE_BR_S:
1259                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1260                         td.ip += 2;
1261                         generating_code = 0;
1262                         break;
1263                 case CEE_BRFALSE:
1264                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1265                         td.ip += 5;
1266                         break;
1267                 case CEE_BRFALSE_S:
1268                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1269                         td.ip += 2;
1270                         break;
1271                 case CEE_BRTRUE:
1272                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1273                         td.ip += 5;
1274                         break;
1275                 case CEE_BRTRUE_S:
1276                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1277                         td.ip += 2;
1278                         break;
1279                 case CEE_BEQ:
1280                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1281                         td.ip += 5;
1282                         break;
1283                 case CEE_BEQ_S:
1284                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1285                         td.ip += 2;
1286                         break;
1287                 case CEE_BGE:
1288                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1289                         td.ip += 5;
1290                         break;
1291                 case CEE_BGE_S:
1292                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1293                         td.ip += 2;
1294                         break;
1295                 case CEE_BGT:
1296                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1297                         td.ip += 5;
1298                         break;
1299                 case CEE_BGT_S:
1300                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1301                         td.ip += 2;
1302                         break;
1303                 case CEE_BLT:
1304                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1305                         td.ip += 5;
1306                         break;
1307                 case CEE_BLT_S:
1308                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1309                         td.ip += 2;
1310                         break;
1311                 case CEE_BLE:
1312                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1313                         td.ip += 5;
1314                         break;
1315                 case CEE_BLE_S:
1316                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1317                         td.ip += 2;
1318                         break;
1319                 case CEE_BNE_UN:
1320                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1321                         td.ip += 5;
1322                         break;
1323                 case CEE_BNE_UN_S:
1324                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1325                         td.ip += 2;
1326                         break;
1327                 case CEE_BGE_UN:
1328                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1329                         td.ip += 5;
1330                         break;
1331                 case CEE_BGE_UN_S:
1332                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1333                         td.ip += 2;
1334                         break;
1335                 case CEE_BGT_UN:
1336                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1337                         td.ip += 5;
1338                         break;
1339                 case CEE_BGT_UN_S:
1340                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1341                         td.ip += 2;
1342                         break;
1343                 case CEE_BLE_UN:
1344                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1345                         td.ip += 5;
1346                         break;
1347                 case CEE_BLE_UN_S:
1348                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1349                         td.ip += 2;
1350                         break;
1351                 case CEE_BLT_UN:
1352                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1353                         td.ip += 5;
1354                         break;
1355                 case CEE_BLT_UN_S:
1356                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1357                         td.ip += 2;
1358                         break;
1359                 case CEE_SWITCH: {
1360                         guint32 n;
1361                         const unsigned char *next_ip;
1362                         const unsigned char *base_ip = td.ip;
1363                         unsigned short *next_new_ip;
1364                         ++td.ip;
1365                         n = read32 (td.ip);
1366                         ADD_CODE(&td, MINT_SWITCH);
1367                         ADD_CODE(&td, * (unsigned short *)(&n));
1368                         ADD_CODE(&td, * ((unsigned short *)&n + 1));
1369                         td.ip += 4;
1370                         next_ip = td.ip + n * 4;
1371                         next_new_ip = td.new_ip + n * 2;
1372                         for (i = 0; i < n; i++) {
1373                                 offset = read32 (td.ip);
1374                                 target = next_ip - td.il_code + offset;
1375                                 if (offset < 0)
1376                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1377                                 else {
1378                                         int prev = td.forward_refs [target];
1379                                         td.forward_refs [td.ip - td.il_code] = prev;
1380                                         td.forward_refs [target] = td.ip - td.il_code;
1381                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1382                                 }
1383                                 ADD_CODE(&td, * (unsigned short *)(&target));
1384                                 ADD_CODE(&td, * ((unsigned short *)&target + 1));
1385                                 td.ip += 4;
1386                         }
1387                         --td.sp;
1388                         break;
1389                 }
1390                 case CEE_LDIND_I1:
1391                         CHECK_STACK (&td, 1);
1392                         SIMPLE_OP (td, MINT_LDIND_I1);
1393                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1394                         break;
1395                 case CEE_LDIND_U1:
1396                         CHECK_STACK (&td, 1);
1397                         SIMPLE_OP (td, MINT_LDIND_U1);
1398                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1399                         break;
1400                 case CEE_LDIND_I2:
1401                         CHECK_STACK (&td, 1);
1402                         SIMPLE_OP (td, MINT_LDIND_I2);
1403                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1404                         break;
1405                 case CEE_LDIND_U2:
1406                         CHECK_STACK (&td, 1);
1407                         SIMPLE_OP (td, MINT_LDIND_U2);
1408                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1409                         break;
1410                 case CEE_LDIND_I4:
1411                         CHECK_STACK (&td, 1);
1412                         SIMPLE_OP (td, MINT_LDIND_I4);
1413                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1414                         break;
1415                 case CEE_LDIND_U4:
1416                         CHECK_STACK (&td, 1);
1417                         SIMPLE_OP (td, MINT_LDIND_U4);
1418                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1419                         break;
1420                 case CEE_LDIND_I8:
1421                         CHECK_STACK (&td, 1);
1422                         SIMPLE_OP (td, MINT_LDIND_I8);
1423                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1424                         break;
1425                 case CEE_LDIND_I:
1426                         CHECK_STACK (&td, 1);
1427                         SIMPLE_OP (td, MINT_LDIND_I);
1428                         ADD_CODE (&td, 0);
1429                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1430                         break;
1431                 case CEE_LDIND_R4:
1432                         CHECK_STACK (&td, 1);
1433                         SIMPLE_OP (td, MINT_LDIND_R4);
1434                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1435                         break;
1436                 case CEE_LDIND_R8:
1437                         CHECK_STACK (&td, 1);
1438                         SIMPLE_OP (td, MINT_LDIND_R8);
1439                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1440                         break;
1441                 case CEE_LDIND_REF:
1442                         CHECK_STACK (&td, 1);
1443                         SIMPLE_OP (td, MINT_LDIND_REF);
1444                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1445                         break;
1446                 case CEE_STIND_REF:
1447                         CHECK_STACK (&td, 2);
1448                         SIMPLE_OP (td, MINT_STIND_REF);
1449                         td.sp -= 2;
1450                         break;
1451                 case CEE_STIND_I1:
1452                         CHECK_STACK (&td, 2);
1453                         SIMPLE_OP (td, MINT_STIND_I1);
1454                         td.sp -= 2;
1455                         break;
1456                 case CEE_STIND_I2:
1457                         CHECK_STACK (&td, 2);
1458                         SIMPLE_OP (td, MINT_STIND_I2);
1459                         td.sp -= 2;
1460                         break;
1461                 case CEE_STIND_I4:
1462                         CHECK_STACK (&td, 2);
1463                         SIMPLE_OP (td, MINT_STIND_I4);
1464                         td.sp -= 2;
1465                         break;
1466                 case CEE_STIND_I:
1467                         CHECK_STACK (&td, 2);
1468                         SIMPLE_OP (td, MINT_STIND_I);
1469                         td.sp -= 2;
1470                         break;
1471                 case CEE_STIND_I8:
1472                         CHECK_STACK (&td, 2);
1473                         SIMPLE_OP (td, MINT_STIND_I8);
1474                         td.sp -= 2;
1475                         break;
1476                 case CEE_STIND_R4:
1477                         CHECK_STACK (&td, 2);
1478                         SIMPLE_OP (td, MINT_STIND_R4);
1479                         td.sp -= 2;
1480                         break;
1481                 case CEE_STIND_R8:
1482                         CHECK_STACK (&td, 2);
1483                         SIMPLE_OP (td, MINT_STIND_R8);
1484                         td.sp -= 2;
1485                         break;
1486                 case CEE_ADD:
1487                         binary_arith_op(&td, MINT_ADD_I4);
1488                         ++td.ip;
1489                         break;
1490                 case CEE_SUB:
1491                         binary_arith_op(&td, MINT_SUB_I4);
1492                         ++td.ip;
1493                         break;
1494                 case CEE_MUL:
1495                         binary_arith_op(&td, MINT_MUL_I4);
1496                         ++td.ip;
1497                         break;
1498                 case CEE_DIV:
1499                         binary_arith_op(&td, MINT_DIV_I4);
1500                         ++td.ip;
1501                         break;
1502                 case CEE_DIV_UN:
1503                         binary_arith_op(&td, MINT_DIV_UN_I4);
1504                         ++td.ip;
1505                         break;
1506                 case CEE_REM:
1507                         binary_int_op (&td, MINT_REM_I4);
1508                         ++td.ip;
1509                         break;
1510                 case CEE_REM_UN:
1511                         binary_int_op (&td, MINT_REM_UN_I4);
1512                         ++td.ip;
1513                         break;
1514                 case CEE_AND:
1515                         binary_int_op (&td, MINT_AND_I4);
1516                         ++td.ip;
1517                         break;
1518                 case CEE_OR:
1519                         binary_int_op (&td, MINT_OR_I4);
1520                         ++td.ip;
1521                         break;
1522                 case CEE_XOR:
1523                         binary_int_op (&td, MINT_XOR_I4);
1524                         ++td.ip;
1525                         break;
1526                 case CEE_SHL:
1527                         shift_op (&td, MINT_SHL_I4);
1528                         ++td.ip;
1529                         break;
1530                 case CEE_SHR:
1531                         shift_op (&td, MINT_SHR_I4);
1532                         ++td.ip;
1533                         break;
1534                 case CEE_SHR_UN:
1535                         shift_op (&td, MINT_SHR_UN_I4);
1536                         ++td.ip;
1537                         break;
1538                 case CEE_NEG:
1539                         unary_arith_op (&td, MINT_NEG_I4);
1540                         ++td.ip;
1541                         break;
1542                 case CEE_NOT:
1543                         unary_arith_op (&td, MINT_NOT_I4);
1544                         ++td.ip;
1545                         break;
1546                 case CEE_CONV_U1:
1547                         CHECK_STACK (&td, 1);
1548                         switch (td.sp [-1].type) {
1549                         case STACK_TYPE_R8:
1550                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1551                                 break;
1552                         case STACK_TYPE_I4:
1553                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1554                                 break;
1555                         case STACK_TYPE_I8:
1556                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1557                                 break;
1558                         default:
1559                                 g_assert_not_reached ();
1560                         }
1561                         ++td.ip;
1562                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1563                         break;
1564                 case CEE_CONV_I1:
1565                         CHECK_STACK (&td, 1);
1566                         switch (td.sp [-1].type) {
1567                         case STACK_TYPE_R8:
1568                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1569                                 break;
1570                         case STACK_TYPE_I4:
1571                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1572                                 break;
1573                         case STACK_TYPE_I8:
1574                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1575                                 break;
1576                         default:
1577                                 g_assert_not_reached ();
1578                         }
1579                         ++td.ip;
1580                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1581                         break;
1582                 case CEE_CONV_U2:
1583                         CHECK_STACK (&td, 1);
1584                         switch (td.sp [-1].type) {
1585                         case STACK_TYPE_R8:
1586                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1587                                 break;
1588                         case STACK_TYPE_I4:
1589                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1590                                 break;
1591                         case STACK_TYPE_I8:
1592                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1593                                 break;
1594                         default:
1595                                 g_assert_not_reached ();
1596                         }
1597                         ++td.ip;
1598                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1599                         break;
1600                 case CEE_CONV_I2:
1601                         CHECK_STACK (&td, 1);
1602                         switch (td.sp [-1].type) {
1603                         case STACK_TYPE_R8:
1604                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1605                                 break;
1606                         case STACK_TYPE_I4:
1607                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1608                                 break;
1609                         case STACK_TYPE_I8:
1610                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1611                                 break;
1612                         default:
1613                                 g_assert_not_reached ();
1614                         }
1615                         ++td.ip;
1616                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1617                         break;
1618                 case CEE_CONV_U:
1619                         CHECK_STACK (&td, 1);
1620                         switch (td.sp [-1].type) {
1621                         case STACK_TYPE_R8:
1622 #if SIZEOF_VOID_P == 4
1623                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1624 #else
1625                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1626 #endif
1627                                 break;
1628                         case STACK_TYPE_I4:
1629 #if SIZEOF_VOID_P == 8
1630                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1631 #endif
1632                                 break;
1633                         case STACK_TYPE_I8:
1634 #if SIZEOF_VOID_P == 4
1635                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1636 #endif
1637                                 break;
1638                         case STACK_TYPE_MP:
1639                                 break;
1640                         default:
1641                                 g_assert_not_reached ();
1642                         }
1643                         ++td.ip;
1644                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1645                         break;
1646                 case CEE_CONV_I:
1647                         CHECK_STACK (&td, 1);
1648                         switch (td.sp [-1].type) {
1649                         case STACK_TYPE_R8:
1650 #if SIZEOF_VOID_P == 8
1651                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1652 #else
1653                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1654 #endif
1655                                 break;
1656                         case STACK_TYPE_I4:
1657 #if SIZEOF_VOID_P == 8
1658                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1659 #endif
1660                                 break;
1661                         case STACK_TYPE_O:
1662                                 break;
1663                         case STACK_TYPE_MP:
1664                                 break;
1665                         case STACK_TYPE_I8:
1666 #if SIZEOF_VOID_P == 4
1667                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1668 #endif
1669                                 break;
1670                         default:
1671                                 g_assert_not_reached ();
1672                         }
1673                         ++td.ip;
1674                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1675                         break;
1676                 case CEE_CONV_U4:
1677                         CHECK_STACK (&td, 1);
1678                         switch (td.sp [-1].type) {
1679                         case STACK_TYPE_R8:
1680                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1681                                 break;
1682                         case STACK_TYPE_I4:
1683                                 break;
1684                         case STACK_TYPE_I8:
1685                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1686                                 break;
1687                         case STACK_TYPE_MP:
1688 #if SIZEOF_VOID_P == 8
1689                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1690 #endif
1691                                 break;
1692                         default:
1693                                 g_assert_not_reached ();
1694                         }
1695                         ++td.ip;
1696                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1697                         break;
1698                 case CEE_CONV_I4:
1699                         CHECK_STACK (&td, 1);
1700                         switch (td.sp [-1].type) {
1701                         case STACK_TYPE_R8:
1702                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1703                                 break;
1704                         case STACK_TYPE_I4:
1705                                 break;
1706                         case STACK_TYPE_I8:
1707                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1708                                 break;
1709                         case STACK_TYPE_MP:
1710 #if SIZEOF_VOID_P == 8
1711                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1712 #endif
1713                                 break;
1714                         default:
1715                                 g_assert_not_reached ();
1716                         }
1717                         ++td.ip;
1718                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1719                         break;
1720                 case CEE_CONV_I8:
1721                         CHECK_STACK (&td, 1);
1722                         switch (td.sp [-1].type) {
1723                         case STACK_TYPE_R8:
1724                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1725                                 break;
1726                         case STACK_TYPE_I4:
1727                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1728                                 break;
1729                         case STACK_TYPE_I8:
1730                                 break;
1731                         case STACK_TYPE_MP:
1732 #if SIZEOF_VOID_P == 4
1733                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1734 #endif
1735                                 break;
1736                         default:
1737                                 g_assert_not_reached ();
1738                         }
1739                         ++td.ip;
1740                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1741                         break;
1742                 case CEE_CONV_R4:
1743                         CHECK_STACK (&td, 1);
1744                         switch (td.sp [-1].type) {
1745                         case STACK_TYPE_R8:
1746                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1747                                 break;
1748                         case STACK_TYPE_I8:
1749                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1750                                 break;
1751                         case STACK_TYPE_I4:
1752                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1753                                 break;
1754                         default:
1755                                 g_assert_not_reached ();
1756                         }
1757                         ++td.ip;
1758                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1759                         break;
1760                 case CEE_CONV_R8:
1761                         CHECK_STACK (&td, 1);
1762                         switch (td.sp [-1].type) {
1763                         case STACK_TYPE_I4:
1764                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1765                                 break;
1766                         case STACK_TYPE_I8:
1767                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1768                                 break;
1769                         case STACK_TYPE_R8:
1770                                 break;
1771                         default:
1772                                 g_assert_not_reached ();
1773                         }
1774                         ++td.ip;
1775                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1776                         break;
1777                 case CEE_CONV_U8:
1778                         CHECK_STACK (&td, 1);
1779                         switch (td.sp [-1].type) {
1780                         case STACK_TYPE_I4:
1781                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1782                                 break;
1783                         case STACK_TYPE_I8:
1784                                 break;
1785                         case STACK_TYPE_R8:
1786                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1787                                 break;
1788                         case STACK_TYPE_MP:
1789 #if SIZEOF_VOID_P == 4
1790                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1791 #endif
1792                                 break;
1793                         default:
1794                                 g_assert_not_reached ();
1795                         }
1796                         ++td.ip;
1797                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1798                         break;
1799                 case CEE_CPOBJ: {
1800                         CHECK_STACK (&td, 2);
1801
1802                         token = read32 (td.ip + 1);
1803                         klass = mono_class_get_full (image, token, generic_context);
1804
1805                         if (klass->valuetype) {
1806                                 ADD_CODE (&td, MINT_CPOBJ);
1807                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1808                         } else {
1809                                 ADD_CODE (&td, MINT_LDIND_REF);
1810                                 ADD_CODE (&td, MINT_STIND_REF);
1811                         }
1812                         td.ip += 5;
1813                         td.sp -= 2;
1814                         break;
1815                 }
1816                 case CEE_LDOBJ: {
1817                         int size;
1818                         CHECK_STACK (&td, 1);
1819
1820                         token = read32 (td.ip + 1);
1821
1822                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1823                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1824                         else
1825                                 klass = mono_class_get_full (image, token, generic_context);
1826
1827                         ADD_CODE(&td, MINT_LDOBJ);
1828                         ADD_CODE(&td, get_data_item_index(&td, klass));
1829                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1830                                 size = mono_class_value_size (klass, NULL);
1831                                 PUSH_VT(&td, size);
1832                         }
1833                         td.ip += 5;
1834                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1835                         break;
1836                 }
1837                 case CEE_LDSTR: {
1838                         MonoString *s;
1839                         token = mono_metadata_token_index (read32 (td.ip + 1));
1840                         td.ip += 5;
1841                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1842                                 s = mono_string_new_wrapper(
1843                                         mono_method_get_wrapper_data (method, token));
1844                         }
1845                         else
1846                                 s = mono_ldstr (domain, image, token);
1847                         ADD_CODE(&td, MINT_LDSTR);
1848                         ADD_CODE(&td, get_data_item_index (&td, s));
1849                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1850                         break;
1851                 }
1852                 case CEE_NEWOBJ: {
1853                         MonoMethod *m;
1854                         MonoMethodSignature *csignature;
1855                         guint32 vt_stack_used = 0;
1856                         guint32 vt_res_size = 0;
1857
1858                         td.ip++;
1859                         token = read32 (td.ip);
1860                         td.ip += 4;
1861
1862                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1863                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1864                         else
1865                                 m = mono_get_method_full (image, token, NULL, generic_context);
1866
1867                         csignature = mono_method_signature (m);
1868                         klass = m->klass;
1869                         td.sp -= csignature->param_count;
1870                         ADD_CODE(&td, MINT_NEWOBJ);
1871                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1872                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1873
1874                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1875                                 vt_res_size = mono_class_value_size (klass, NULL);
1876                                 PUSH_VT (&td, vt_res_size);
1877                         }
1878                         for (i = 0; i < csignature->param_count; ++i) {
1879                                 int mt = mint_type(csignature->params [i]);
1880                                 if (mt == MINT_TYPE_VT) {
1881                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1882                                         gint32 size = mono_class_value_size (k, NULL);
1883                                         size = (size + 7) & ~7;
1884                                         vt_stack_used += size;
1885                                 }
1886                         }
1887                         if (vt_stack_used != 0 || vt_res_size != 0) {
1888                                 ADD_CODE(&td, MINT_VTRESULT);
1889                                 ADD_CODE(&td, vt_res_size);
1890                                 WRITE32(&td, &vt_stack_used);
1891                                 td.vt_sp -= vt_stack_used;
1892                         }
1893                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1894                         break;
1895                 }
1896                 case CEE_CASTCLASS:
1897                         CHECK_STACK (&td, 1);
1898                         token = read32 (td.ip + 1);
1899                         klass = mono_class_get_full (image, token, generic_context);
1900                         ADD_CODE(&td, MINT_CASTCLASS);
1901                         ADD_CODE(&td, get_data_item_index (&td, klass));
1902                         td.sp [-1].klass = klass;
1903                         td.ip += 5;
1904                         break;
1905                 case CEE_ISINST:
1906                         CHECK_STACK (&td, 1);
1907                         token = read32 (td.ip + 1);
1908                         klass = mono_class_get_full (image, token, generic_context);
1909                         ADD_CODE(&td, MINT_ISINST);
1910                         ADD_CODE(&td, get_data_item_index (&td, klass));
1911                         td.ip += 5;
1912                         break;
1913                 case CEE_CONV_R_UN:
1914                         switch (td.sp [-1].type) {
1915                         case STACK_TYPE_R8:
1916                                 break;
1917                         case STACK_TYPE_I8:
1918                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1919                                 break;
1920                         case STACK_TYPE_I4:
1921                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1922                                 break;
1923                         default:
1924                                 g_assert_not_reached ();
1925                         }
1926                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1927                         ++td.ip;
1928                         break;
1929                 case CEE_UNBOX:
1930                         CHECK_STACK (&td, 1);
1931                         token = read32 (td.ip + 1);
1932
1933                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1934                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1935                         else
1936                                 klass = mono_class_get_full (image, token, generic_context);
1937
1938                         if (mono_class_is_nullable (klass)) {
1939                                 g_error ("cee_unbox: implement Nullable");
1940                         }
1941
1942                         ADD_CODE(&td, MINT_UNBOX);
1943                         ADD_CODE(&td, get_data_item_index (&td, klass));
1944                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1945                         td.ip += 5;
1946                         break;
1947                 case CEE_UNBOX_ANY:
1948                         CHECK_STACK (&td, 1);
1949                         token = read32 (td.ip + 1);
1950
1951                         g_assert (method->wrapper_type == MONO_WRAPPER_NONE);
1952                         klass = mono_class_get_full (image, token, generic_context);
1953
1954                         if (mini_type_is_reference (&klass->byval_arg)) {
1955                                 ADD_CODE (&td, MINT_CASTCLASS);
1956                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1957                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1958                                 td.ip += 5;
1959                         } else if (mono_class_is_nullable (klass)) {
1960                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
1961                                 /* td.ip is incremented by interp_transform_call */
1962                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
1963                         } else {
1964                                 int mt = mint_type (&klass->byval_arg);
1965                                 ADD_CODE (&td, MINT_UNBOX);
1966                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1967
1968                                 ADD_CODE (&td, MINT_LDOBJ);
1969                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1970                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1971
1972                                 if (mt == MINT_TYPE_VT) {
1973                                         int size = mono_class_value_size (klass, NULL);
1974                                         PUSH_VT (&td, size);
1975                                 }
1976                                 td.ip += 5;
1977                         }
1978
1979                         break;
1980                 case CEE_THROW:
1981                         CHECK_STACK (&td, 1);
1982                         SIMPLE_OP (td, MINT_THROW);
1983                         --td.sp;
1984                         generating_code = 0;
1985                         break;
1986                 case CEE_LDFLDA:
1987                         CHECK_STACK (&td, 1);
1988                         token = read32 (td.ip + 1);
1989                         field = mono_field_from_token (image, token, &klass, generic_context);
1990                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
1991                         mono_class_init (klass);
1992                         if (is_static) {
1993                                 ADD_CODE (&td, MINT_POP);
1994                                 ADD_CODE (&td, 0);
1995                                 ADD_CODE (&td, MINT_LDSFLDA);
1996                                 ADD_CODE (&td, get_data_item_index (&td, field));
1997                         } else {
1998                                 ADD_CODE (&td, MINT_LDFLDA);
1999                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2000                         }
2001                         td.ip += 5;
2002                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2003                         break;
2004                 case CEE_LDFLD: {
2005                         CHECK_STACK (&td, 1);
2006                         token = read32 (td.ip + 1);
2007                         field = mono_field_from_token (image, token, &klass, generic_context);
2008                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2009                         mono_class_init (klass);
2010
2011                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2012                         mt = mint_type (&field_klass->byval_arg);
2013                         if (klass->marshalbyref) {
2014                                 g_assert (!is_static);
2015                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2016                                 ADD_CODE(&td, get_data_item_index (&td, field));
2017                         } else  {
2018                                 if (is_static) {
2019                                         ADD_CODE (&td, MINT_POP);
2020                                         ADD_CODE (&td, 0);
2021                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2022                                         ADD_CODE (&td, get_data_item_index (&td, field));
2023                                 } else {
2024                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2025                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2026                                 }
2027                         }
2028                         if (mt == MINT_TYPE_VT) {
2029                                 int size = mono_class_value_size (field_klass, NULL);
2030                                 PUSH_VT(&td, size);
2031                                 WRITE32(&td, &size);
2032                         }
2033                         if (td.sp [-1].type == STACK_TYPE_VT) {
2034                                 int size = mono_class_value_size (klass, NULL);
2035                                 size = (size + 7) & ~7;
2036                                 td.vt_sp -= size;
2037                                 ADD_CODE (&td, MINT_VTRESULT);
2038                                 ADD_CODE (&td, 0);
2039                                 WRITE32 (&td, &size);
2040                         }
2041                         td.ip += 5;
2042                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2043                         break;
2044                 }
2045                 case CEE_STFLD: {
2046                         CHECK_STACK (&td, 2);
2047                         token = read32 (td.ip + 1);
2048                         field = mono_field_from_token (image, token, &klass, generic_context);
2049                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2050                         mono_class_init (klass);
2051                         mt = mint_type(field->type);
2052
2053                         if (klass->marshalbyref) {
2054                                 g_assert (!is_static);
2055                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2056                                 ADD_CODE(&td, get_data_item_index (&td, field));
2057                         } else  {
2058                                 if (is_static) {
2059                                         ADD_CODE (&td, MINT_POP);
2060                                         ADD_CODE (&td, 1);
2061                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2062                                         ADD_CODE (&td, get_data_item_index (&td, field));
2063                                 } else {
2064                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2065                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2066                                 }
2067                         }
2068                         if (mt == MINT_TYPE_VT) {
2069                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2070                                 int size = mono_class_value_size (klass, NULL);
2071                                 POP_VT(&td, size);
2072                                 WRITE32(&td, &size);
2073                         }
2074                         td.ip += 5;
2075                         td.sp -= 2;
2076                         break;
2077                 }
2078                 case CEE_LDSFLDA:
2079                         token = read32 (td.ip + 1);
2080                         field = mono_field_from_token (image, token, &klass, generic_context);
2081                         ADD_CODE(&td, MINT_LDSFLDA);
2082                         ADD_CODE(&td, get_data_item_index (&td, field));
2083                         td.ip += 5;
2084                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2085                         break;
2086                 case CEE_LDSFLD:
2087                         token = read32 (td.ip + 1);
2088                         field = mono_field_from_token (image, token, &klass, generic_context);
2089                         mt = mint_type(field->type);
2090                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2091                         ADD_CODE(&td, get_data_item_index (&td, field));
2092                         klass = NULL;
2093                         if (mt == MINT_TYPE_VT) {
2094                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2095                                 int size = mono_class_value_size (klass, NULL);
2096                                 PUSH_VT(&td, size);
2097                                 WRITE32(&td, &size);
2098                                 klass = field->type->data.klass;
2099                         } else {
2100                                 if (mt == MINT_TYPE_O)
2101                                         klass = mono_class_from_mono_type (field->type);
2102                         }
2103                         td.ip += 5;
2104                         PUSH_TYPE(&td, stack_type [mt], klass);
2105                         break;
2106                 case CEE_STSFLD:
2107                         CHECK_STACK (&td, 1);
2108                         token = read32 (td.ip + 1);
2109                         field = mono_field_from_token (image, token, &klass, generic_context);
2110                         mt = mint_type(field->type);
2111                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2112                         ADD_CODE(&td, get_data_item_index (&td, field));
2113                         if (mt == MINT_TYPE_VT) {
2114                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2115                                 int size = mono_class_value_size (klass, NULL);
2116                                 POP_VT (&td, size);
2117                                 WRITE32 (&td, &size);
2118                         }
2119                         td.ip += 5;
2120                         --td.sp;
2121                         break;
2122                 case CEE_STOBJ: {
2123                         int size;
2124                         token = read32 (td.ip + 1);
2125
2126                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2127                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2128                         else
2129                                 klass = mono_class_get_full (image, token, generic_context);
2130
2131                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2132                         ADD_CODE(&td, get_data_item_index (&td, klass));
2133                         if (td.sp [-1].type == STACK_TYPE_VT) {
2134                                 size = mono_class_value_size (klass, NULL);
2135                                 size = (size + 7) & ~7;
2136                                 td.vt_sp -= size;
2137                         }
2138                         td.ip += 5;
2139                         td.sp -= 2;
2140                         break;
2141                 }
2142                 case CEE_CONV_OVF_I_UN:
2143                 case CEE_CONV_OVF_U_UN:
2144                         CHECK_STACK (&td, 1);
2145                         switch (td.sp [-1].type) {
2146                         case STACK_TYPE_R8:
2147 #if SIZEOF_VOID_P == 8
2148                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2149 #else
2150                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2151 #endif
2152                                 break;
2153                         case STACK_TYPE_I8:
2154 #if SIZEOF_VOID_P == 4
2155                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2156 #endif
2157                                 break;
2158                         case STACK_TYPE_I4:
2159 #if SIZEOF_VOID_P == 8
2160                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2161 #endif
2162                                 break;
2163                         default:
2164                                 g_assert_not_reached ();
2165                                 break;
2166                         }
2167                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2168                         ++td.ip;
2169                         break;
2170                 case CEE_CONV_OVF_I8_UN:
2171                 case CEE_CONV_OVF_U8_UN:
2172                         CHECK_STACK (&td, 1);
2173                         switch (td.sp [-1].type) {
2174                         case STACK_TYPE_R8:
2175                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2176                                 break;
2177                         case STACK_TYPE_I8:
2178                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2179                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2180                                 break;
2181                         case STACK_TYPE_I4:
2182                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2183                                 break;
2184                         default:
2185                                 g_assert_not_reached ();
2186                                 break;
2187                         }
2188                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2189                         ++td.ip;
2190                         break;
2191                 case CEE_BOX: {
2192                         int size;
2193                         CHECK_STACK (&td, 1);
2194                         token = read32 (td.ip + 1);
2195                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2196                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2197                         else
2198                                 klass = mono_class_get_full (image, token, generic_context);
2199
2200                         if (mono_class_is_nullable (klass)) {
2201                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2202                                 /* td.ip is incremented by interp_transform_call */
2203                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2204                         } else if (!klass->valuetype) {
2205                                 /* already boxed, do nothing. */
2206                                 td.ip += 5;
2207                         } else {
2208                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2209                                         size = mono_class_value_size (klass, NULL);
2210                                         size = (size + 7) & ~7;
2211                                         td.vt_sp -= size;
2212                                 }
2213                                 ADD_CODE(&td, MINT_BOX);
2214                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2215                                 ADD_CODE (&td, 0);
2216                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2217                                 td.ip += 5;
2218                         }
2219
2220                         break;
2221                 }
2222                 case CEE_NEWARR: {
2223                         CHECK_STACK (&td, 1);
2224                         token = read32 (td.ip + 1);
2225
2226                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2227                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2228                         else
2229                                 klass = mono_class_get_full (image, token, generic_context);
2230
2231                         unsigned char lentype = (td.sp - 1)->type;
2232                         if (lentype == STACK_TYPE_I8) {
2233                                 /* mimic mini behaviour */
2234                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2235                         } else {
2236                                 g_assert (lentype == STACK_TYPE_I4);
2237                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2238                         }
2239                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2240                         ADD_CODE (&td, MINT_NEWARR);
2241                         ADD_CODE (&td, get_data_item_index (&td, klass));
2242                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2243                         td.ip += 5;
2244                         break;
2245                 }
2246                 case CEE_LDLEN:
2247                         CHECK_STACK (&td, 1);
2248                         SIMPLE_OP (td, MINT_LDLEN);
2249                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2250                         break;
2251                 case CEE_LDELEMA:
2252                         CHECK_STACK (&td, 2);
2253                         ENSURE_I4 (&td, 1);
2254                         token = read32 (td.ip + 1);
2255
2256                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2257                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2258                         else
2259                                 klass = mono_class_get_full (image, token, generic_context);
2260
2261                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2262                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2263                         } else {
2264                                 ADD_CODE (&td, MINT_LDELEMA);
2265                         }
2266                         ADD_CODE (&td, get_data_item_index (&td, klass));
2267                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2268                         ADD_CODE (&td, 2);
2269                         readonly = FALSE;
2270
2271                         td.ip += 5;
2272                         --td.sp;
2273                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2274                         break;
2275                 case CEE_LDELEM_I1:
2276                         CHECK_STACK (&td, 2);
2277                         ENSURE_I4 (&td, 1);
2278                         SIMPLE_OP (td, MINT_LDELEM_I1);
2279                         --td.sp;
2280                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2281                         break;
2282                 case CEE_LDELEM_U1:
2283                         CHECK_STACK (&td, 2);
2284                         ENSURE_I4 (&td, 1);
2285                         SIMPLE_OP (td, MINT_LDELEM_U1);
2286                         --td.sp;
2287                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2288                         break;
2289                 case CEE_LDELEM_I2:
2290                         CHECK_STACK (&td, 2);
2291                         ENSURE_I4 (&td, 1);
2292                         SIMPLE_OP (td, MINT_LDELEM_I2);
2293                         --td.sp;
2294                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2295                         break;
2296                 case CEE_LDELEM_U2:
2297                         CHECK_STACK (&td, 2);
2298                         ENSURE_I4 (&td, 1);
2299                         SIMPLE_OP (td, MINT_LDELEM_U2);
2300                         --td.sp;
2301                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2302                         break;
2303                 case CEE_LDELEM_I4:
2304                         CHECK_STACK (&td, 2);
2305                         ENSURE_I4 (&td, 1);
2306                         SIMPLE_OP (td, MINT_LDELEM_I4);
2307                         --td.sp;
2308                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2309                         break;
2310                 case CEE_LDELEM_U4:
2311                         CHECK_STACK (&td, 2);
2312                         ENSURE_I4 (&td, 1);
2313                         SIMPLE_OP (td, MINT_LDELEM_U4);
2314                         --td.sp;
2315                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2316                         break;
2317                 case CEE_LDELEM_I8:
2318                         CHECK_STACK (&td, 2);
2319                         ENSURE_I4 (&td, 1);
2320                         SIMPLE_OP (td, MINT_LDELEM_I8);
2321                         --td.sp;
2322                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2323                         break;
2324                 case CEE_LDELEM_I:
2325                         CHECK_STACK (&td, 2);
2326                         ENSURE_I4 (&td, 1);
2327                         SIMPLE_OP (td, MINT_LDELEM_I);
2328                         --td.sp;
2329                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2330                         break;
2331                 case CEE_LDELEM_R4:
2332                         CHECK_STACK (&td, 2);
2333                         ENSURE_I4 (&td, 1);
2334                         SIMPLE_OP (td, MINT_LDELEM_R4);
2335                         --td.sp;
2336                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2337                         break;
2338                 case CEE_LDELEM_R8:
2339                         CHECK_STACK (&td, 2);
2340                         ENSURE_I4 (&td, 1);
2341                         SIMPLE_OP (td, MINT_LDELEM_R8);
2342                         --td.sp;
2343                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2344                         break;
2345                 case CEE_LDELEM_REF:
2346                         CHECK_STACK (&td, 2);
2347                         ENSURE_I4 (&td, 1);
2348                         SIMPLE_OP (td, MINT_LDELEM_REF);
2349                         --td.sp;
2350                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2351                         break;
2352                 case CEE_LDELEM:
2353                         CHECK_STACK (&td, 2);
2354                         token = read32 (td.ip + 1);
2355                         klass = mono_class_get_full (image, token, generic_context);
2356                         switch (mint_type (&klass->byval_arg)) {
2357                                 case MINT_TYPE_I1:
2358                                         ENSURE_I4 (&td, 1);
2359                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2360                                         --td.sp;
2361                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2362                                         break;
2363                                 case MINT_TYPE_U1:
2364                                         ENSURE_I4 (&td, 1);
2365                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2366                                         --td.sp;
2367                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2368                                         break;
2369                                 case MINT_TYPE_U2:
2370                                         ENSURE_I4 (&td, 1);
2371                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2372                                         --td.sp;
2373                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2374                                         break;
2375                                 case MINT_TYPE_I2:
2376                                         ENSURE_I4 (&td, 1);
2377                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2378                                         --td.sp;
2379                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2380                                         break;
2381                                 case MINT_TYPE_I4:
2382                                         ENSURE_I4 (&td, 1);
2383                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2384                                         --td.sp;
2385                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2386                                         break;
2387                                 case MINT_TYPE_I8:
2388                                         ENSURE_I4 (&td, 1);
2389                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2390                                         --td.sp;
2391                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2392                                         break;
2393                                 case MINT_TYPE_R4:
2394                                         ENSURE_I4 (&td, 1);
2395                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2396                                         --td.sp;
2397                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2398                                         break;
2399                                 case MINT_TYPE_R8:
2400                                         ENSURE_I4 (&td, 1);
2401                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2402                                         --td.sp;
2403                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2404                                         break;
2405                                 case MINT_TYPE_O:
2406                                         ENSURE_I4 (&td, 1);
2407                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2408                                         --td.sp;
2409                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2410                                         break;
2411                                 case MINT_TYPE_VT: {
2412                                         int size = mono_class_value_size (klass, NULL);
2413                                         ENSURE_I4 (&td, 1);
2414                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2415                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2416                                         WRITE32 (&td, &size);
2417                                         --td.sp;
2418                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2419                                         PUSH_VT (&td, size);
2420                                         break;
2421                                 }
2422                                 default: {
2423                                         GString *res = g_string_new ("");
2424                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2425                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2426                                         g_string_free (res, TRUE);
2427                                         g_assert (0);
2428                                         break;
2429                                 }
2430                         }
2431                         td.ip += 4;
2432                         break;
2433                 case CEE_STELEM_I:
2434                         CHECK_STACK (&td, 3);
2435                         ENSURE_I4 (&td, 2);
2436                         SIMPLE_OP (td, MINT_STELEM_I);
2437                         td.sp -= 3;
2438                         break;
2439                 case CEE_STELEM_I1:
2440                         CHECK_STACK (&td, 3);
2441                         ENSURE_I4 (&td, 2);
2442                         SIMPLE_OP (td, MINT_STELEM_I1);
2443                         td.sp -= 3;
2444                         break;
2445                 case CEE_STELEM_I2:
2446                         CHECK_STACK (&td, 3);
2447                         ENSURE_I4 (&td, 2);
2448                         SIMPLE_OP (td, MINT_STELEM_I2);
2449                         td.sp -= 3;
2450                         break;
2451                 case CEE_STELEM_I4:
2452                         CHECK_STACK (&td, 3);
2453                         ENSURE_I4 (&td, 2);
2454                         SIMPLE_OP (td, MINT_STELEM_I4);
2455                         td.sp -= 3;
2456                         break;
2457                 case CEE_STELEM_I8:
2458                         CHECK_STACK (&td, 3);
2459                         ENSURE_I4 (&td, 2);
2460                         SIMPLE_OP (td, MINT_STELEM_I8);
2461                         td.sp -= 3;
2462                         break;
2463                 case CEE_STELEM_R4:
2464                         CHECK_STACK (&td, 3);
2465                         ENSURE_I4 (&td, 2);
2466                         SIMPLE_OP (td, MINT_STELEM_R4);
2467                         td.sp -= 3;
2468                         break;
2469                 case CEE_STELEM_R8:
2470                         CHECK_STACK (&td, 3);
2471                         ENSURE_I4 (&td, 2);
2472                         SIMPLE_OP (td, MINT_STELEM_R8);
2473                         td.sp -= 3;
2474                         break;
2475                 case CEE_STELEM_REF:
2476                         CHECK_STACK (&td, 3);
2477                         ENSURE_I4 (&td, 2);
2478                         SIMPLE_OP (td, MINT_STELEM_REF);
2479                         td.sp -= 3;
2480                         break;
2481                 case CEE_STELEM:
2482                         CHECK_STACK (&td, 3);
2483                         ENSURE_I4 (&td, 2);
2484                         token = read32 (td.ip + 1);
2485                         klass = mono_class_get_full (image, token, generic_context);
2486                         switch (mint_type (&klass->byval_arg)) {
2487                                 case MINT_TYPE_U1:
2488                                         SIMPLE_OP (td, MINT_STELEM_U1);
2489                                         break;
2490                                 case MINT_TYPE_I4:
2491                                         SIMPLE_OP (td, MINT_STELEM_I4);
2492                                         break;
2493                                 case MINT_TYPE_O:
2494                                         SIMPLE_OP (td, MINT_STELEM_REF);
2495                                         break;
2496                                 case MINT_TYPE_VT: {
2497                                         int size = mono_class_value_size (klass, NULL);
2498                                         SIMPLE_OP (td, MINT_STELEM_VT);
2499                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2500                                         WRITE32 (&td, &size);
2501                                         POP_VT (&td, size);
2502                                         break;
2503                                 }
2504                                 default: {
2505                                         GString *res = g_string_new ("");
2506                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2507                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2508                                         g_string_free (res, TRUE);
2509                                         g_assert (0);
2510                                         break;
2511                                 }
2512                         }
2513                         td.ip += 4;
2514                         td.sp -= 3;
2515                         break;
2516 #if 0
2517                 case CEE_CONV_OVF_U1:
2518
2519                 case CEE_CONV_OVF_I8:
2520
2521 #if SIZEOF_VOID_P == 8
2522                 case CEE_CONV_OVF_U:
2523 #endif
2524                 case CEE_REFANYVAL: ves_abort(); break;
2525 #endif
2526                 case CEE_CKFINITE:
2527                         CHECK_STACK (&td, 1);
2528                         SIMPLE_OP (td, MINT_CKFINITE);
2529                         break;
2530                 case CEE_CONV_OVF_I1:
2531                 case CEE_CONV_OVF_I1_UN:
2532                         CHECK_STACK (&td, 1);
2533                         switch (td.sp [-1].type) {
2534                         case STACK_TYPE_R8:
2535                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2536                                 break;
2537                         case STACK_TYPE_I4:
2538                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2539                                 break;
2540                         case STACK_TYPE_I8:
2541                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2542                                 break;
2543                         default:
2544                                 g_assert_not_reached ();
2545                         }
2546                         ++td.ip;
2547                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2548                         break;
2549                 case CEE_CONV_OVF_U1:
2550                 case CEE_CONV_OVF_U1_UN:
2551                         CHECK_STACK (&td, 1);
2552                         switch (td.sp [-1].type) {
2553                         case STACK_TYPE_R8:
2554                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2555                                 break;
2556                         case STACK_TYPE_I4:
2557                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2558                                 break;
2559                         case STACK_TYPE_I8:
2560                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2561                                 break;
2562                         default:
2563                                 g_assert_not_reached ();
2564                         }
2565                         ++td.ip;
2566                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2567                         break;
2568                 case CEE_CONV_OVF_I2:
2569                 case CEE_CONV_OVF_I2_UN:
2570                         CHECK_STACK (&td, 1);
2571                         switch (td.sp [-1].type) {
2572                         case STACK_TYPE_R8:
2573                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2574                                 break;
2575                         case STACK_TYPE_I4:
2576                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2577                                 break;
2578                         case STACK_TYPE_I8:
2579                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2580                                 break;
2581                         default:
2582                                 g_assert_not_reached ();
2583                         }
2584                         ++td.ip;
2585                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2586                         break;
2587                 case CEE_CONV_OVF_U2_UN:
2588                 case CEE_CONV_OVF_U2:
2589                         CHECK_STACK (&td, 1);
2590                         switch (td.sp [-1].type) {
2591                         case STACK_TYPE_R8:
2592                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2593                                 break;
2594                         case STACK_TYPE_I4:
2595                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2596                                 break;
2597                         case STACK_TYPE_I8:
2598                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2599                                 break;
2600                         default:
2601                                 g_assert_not_reached ();
2602                         }
2603                         ++td.ip;
2604                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2605                         break;
2606 #if SIZEOF_VOID_P == 4
2607                 case CEE_CONV_OVF_I:
2608 #endif
2609                 case CEE_CONV_OVF_I4:
2610                 case CEE_CONV_OVF_I4_UN:
2611                         CHECK_STACK (&td, 1);
2612                         switch (td.sp [-1].type) {
2613                         case STACK_TYPE_R8:
2614                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2615                                 break;
2616                         case STACK_TYPE_I4:
2617                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2618                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2619                                 break;
2620                         case STACK_TYPE_I8:
2621                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2622                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2623                                 else
2624                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2625                                 break;
2626                         default:
2627                                 g_assert_not_reached ();
2628                         }
2629                         ++td.ip;
2630                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2631                         break;
2632 #if SIZEOF_VOID_P == 4
2633                 case CEE_CONV_OVF_U:
2634 #endif
2635                 case CEE_CONV_OVF_U4:
2636                 case CEE_CONV_OVF_U4_UN:
2637                         CHECK_STACK (&td, 1);
2638                         switch (td.sp [-1].type) {
2639                         case STACK_TYPE_R8:
2640                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2641                                 break;
2642                         case STACK_TYPE_I4:
2643                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2644                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2645                                 break;
2646                         case STACK_TYPE_I8:
2647                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2648                                 break;
2649                         default:
2650                                 g_assert_not_reached ();
2651                         }
2652                         ++td.ip;
2653                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2654                         break;
2655 #if SIZEOF_VOID_P == 8
2656                 case CEE_CONV_OVF_I:
2657 #endif
2658                 case CEE_CONV_OVF_I8:
2659                         CHECK_STACK (&td, 1);
2660                         switch (td.sp [-1].type) {
2661                         case STACK_TYPE_R8:
2662                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2663                                 break;
2664                         case STACK_TYPE_I4:
2665                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2666                                 break;
2667                         case STACK_TYPE_I8:
2668                                 break;
2669                         default:
2670                                 g_assert_not_reached ();
2671                         }
2672                         ++td.ip;
2673                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2674                         break;
2675 #if SIZEOF_VOID_P == 8
2676                 case CEE_CONV_OVF_U:
2677 #endif
2678                 case CEE_CONV_OVF_U8:
2679                         CHECK_STACK (&td, 1);
2680                         switch (td.sp [-1].type) {
2681                         case STACK_TYPE_R8:
2682                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2683                                 break;
2684                         case STACK_TYPE_I4:
2685                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2686                                 break;
2687                         case STACK_TYPE_I8:
2688                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2689                                 break;
2690                         default:
2691                                 g_assert_not_reached ();
2692                         }
2693                         ++td.ip;
2694                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2695                         break;
2696                 case CEE_LDTOKEN: {
2697                         int size;
2698                         gpointer handle;
2699                         token = read32 (td.ip + 1);
2700                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2701                                 handle = mono_method_get_wrapper_data (method, token);
2702                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2703                                 if (klass == mono_defaults.typehandle_class)
2704                                         handle = &((MonoClass *) handle)->byval_arg;
2705                         } else {
2706                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2707                         }
2708                         mt = mint_type (&klass->byval_arg);
2709                         g_assert (mt == MINT_TYPE_VT);
2710                         size = mono_class_value_size (klass, NULL);
2711                         g_assert (size == sizeof(gpointer));
2712                         PUSH_VT (&td, sizeof(gpointer));
2713                         ADD_CODE (&td, MINT_LDTOKEN);
2714                         ADD_CODE (&td, get_data_item_index (&td, handle));
2715
2716                         SET_TYPE (td.sp, stack_type [mt], klass);
2717                         td.sp++;
2718                         td.ip += 5;
2719                         break;
2720                 }
2721                 case CEE_ADD_OVF:
2722                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2723                         ++td.ip;
2724                         break;
2725                 case CEE_ADD_OVF_UN:
2726                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2727                         ++td.ip;
2728                         break;
2729                 case CEE_MUL_OVF:
2730                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2731                         ++td.ip;
2732                         break;
2733                 case CEE_MUL_OVF_UN:
2734                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2735                         ++td.ip;
2736                         break;
2737                 case CEE_SUB_OVF:
2738                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2739                         ++td.ip;
2740                         break;
2741                 case CEE_SUB_OVF_UN:
2742                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2743                         ++td.ip;
2744                         break;
2745                 case CEE_ENDFINALLY:
2746                         SIMPLE_OP (td, MINT_ENDFINALLY);
2747                         generating_code = 0;
2748                         break;
2749                 case CEE_LEAVE:
2750                         td.sp = td.stack;
2751                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2752                         td.ip += 5;
2753                         generating_code = 0;
2754                         break;
2755                 case CEE_LEAVE_S:
2756                         td.sp = td.stack;
2757                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2758                         td.ip += 2;
2759                         generating_code = 0;
2760                         break;
2761                 case CEE_UNUSED41:
2762                         ++td.ip;
2763                         switch (*td.ip) {
2764                                 case CEE_MONO_CALLI_EXTRA_ARG:
2765                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2766                                         ADD_CODE (&td, MINT_POP);
2767                                         ADD_CODE (&td, 1);
2768                                         --td.sp;
2769                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2770                                         break;
2771                                 case CEE_MONO_JIT_ICALL_ADDR: {
2772                                         guint32 token;
2773                                         gpointer func;
2774                                         MonoJitICallInfo *info;
2775
2776                                         token = read32 (td.ip + 1);
2777                                         td.ip += 5;
2778                                         func = mono_method_get_wrapper_data (method, token);
2779                                         info = mono_find_jit_icall_by_addr (func);
2780
2781                                         ADD_CODE (&td, MINT_LDFTN);
2782                                         ADD_CODE (&td, get_data_item_index (&td, func));
2783                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2784                                         break;
2785                                 }
2786                                 case CEE_MONO_ICALL: {
2787                                         guint32 token;
2788                                         gpointer func;
2789                                         MonoJitICallInfo *info;
2790
2791                                         token = read32 (td.ip + 1);
2792                                         td.ip += 5;
2793                                         func = mono_method_get_wrapper_data (method, token);
2794                                         info = mono_find_jit_icall_by_addr (func);
2795                                         g_assert (info);
2796
2797                                         CHECK_STACK (&td, info->sig->param_count);
2798                                         switch (info->sig->param_count) {
2799                                         case 0:
2800                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2801                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2802                                                 else
2803                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2804                                                 break;
2805                                         case 1:
2806                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2807                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2808                                                 else
2809                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2810                                                 break;
2811                                         case 2:
2812                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2813                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2814                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2815                                                         else
2816                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2817                                                 } else {
2818                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2819                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2820                                                         else
2821                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2822                                                 }
2823                                                 break;
2824                                         case 3:
2825                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2826                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2827                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2828                                                 else
2829                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2830                                                 break;
2831                                         default:
2832                                                 g_assert_not_reached ();
2833                                         }
2834
2835                                         if (func == mono_ftnptr_to_delegate) {
2836                                                 g_error ("TODO: ?");
2837                                         }
2838                                         ADD_CODE(&td, get_data_item_index (&td, func));
2839                                         td.sp -= info->sig->param_count;
2840
2841                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2842                                                 td.sp ++;
2843                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2844                                         }
2845                                         break;
2846                                 }
2847                         case CEE_MONO_VTADDR: {
2848                                 int size;
2849                                 CHECK_STACK (&td, 1);
2850                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2851                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2852                                 else
2853                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2854                                 size = (size + 7) & ~7;
2855                                 ADD_CODE(&td, MINT_VTRESULT);
2856                                 ADD_CODE(&td, 0);
2857                                 WRITE32(&td, &size);
2858                                 td.vt_sp -= size;
2859                                 ++td.ip;
2860                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2861                                 break;
2862                         }
2863                         case CEE_MONO_LDPTR:
2864                         case CEE_MONO_CLASSCONST:
2865                                 token = read32 (td.ip + 1);
2866                                 td.ip += 5;
2867                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2868                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2869                                 td.sp [0].type = STACK_TYPE_I;
2870                                 ++td.sp;
2871                                 break;
2872                         case CEE_MONO_OBJADDR:
2873                                 CHECK_STACK (&td, 1);
2874                                 ++td.ip;
2875                                 td.sp[-1].type = STACK_TYPE_MP;
2876                                 /* do nothing? */
2877                                 break;
2878                         case CEE_MONO_NEWOBJ:
2879                                 token = read32 (td.ip + 1);
2880                                 td.ip += 5;
2881                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2882                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2883                                 td.sp [0].type = STACK_TYPE_O;
2884                                 ++td.sp;
2885                                 break;
2886                         case CEE_MONO_RETOBJ:
2887                                 CHECK_STACK (&td, 1);
2888                                 token = read32 (td.ip + 1);
2889                                 td.ip += 5;
2890                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2891                                 td.sp--;
2892
2893                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2894
2895                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2896
2897                                 if (td.sp > td.stack)
2898                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2899                                 break;
2900                         case CEE_MONO_LDNATIVEOBJ:
2901                                 token = read32 (td.ip + 1);
2902                                 td.ip += 5;
2903                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2904                                 g_assert(klass->valuetype);
2905                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2906                                 break;
2907                         case CEE_MONO_SAVE_LMF:
2908                         case CEE_MONO_RESTORE_LMF:
2909                         case CEE_MONO_NOT_TAKEN:
2910                                 ++td.ip;
2911                                 break;
2912                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
2913                                 ADD_CODE (&td, MINT_MONO_LDPTR);
2914                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
2915                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
2916                                 ++td.ip;
2917                                 break;
2918                         default:
2919                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2920                         }
2921                         break;
2922 #if 0
2923                 case CEE_PREFIX7:
2924                 case CEE_PREFIX6:
2925                 case CEE_PREFIX5:
2926                 case CEE_PREFIX4:
2927                 case CEE_PREFIX3:
2928                 case CEE_PREFIX2:
2929                 case CEE_PREFIXREF: ves_abort(); break;
2930 #endif
2931                 /*
2932                  * Note: Exceptions thrown when executing a prefixed opcode need
2933                  * to take into account the number of prefix bytes (usually the
2934                  * throw point is just (ip - n_prefix_bytes).
2935                  */
2936                 case CEE_PREFIX1:
2937                         ++td.ip;
2938                         switch (*td.ip) {
2939 #if 0
2940                         case CEE_ARGLIST: ves_abort(); break;
2941 #endif
2942                         case CEE_CEQ:
2943                                 CHECK_STACK(&td, 2);
2944                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2945                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2946                                 else
2947                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
2948                                 --td.sp;
2949                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2950                                 ++td.ip;
2951                                 break;
2952                         case CEE_CGT:
2953                                 CHECK_STACK(&td, 2);
2954                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2955                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2956                                 else
2957                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2958                                 --td.sp;
2959                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2960                                 ++td.ip;
2961                                 break;
2962                         case CEE_CGT_UN:
2963                                 CHECK_STACK(&td, 2);
2964                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2965                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2966                                 else
2967                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2968                                 --td.sp;
2969                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2970                                 ++td.ip;
2971                                 break;
2972                         case CEE_CLT:
2973                                 CHECK_STACK(&td, 2);
2974                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2975                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2976                                 else
2977                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2978                                 --td.sp;
2979                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2980                                 ++td.ip;
2981                                 break;
2982                         case CEE_CLT_UN:
2983                                 CHECK_STACK(&td, 2);
2984                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2985                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2986                                 else
2987                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2988                                 --td.sp;
2989                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2990                                 ++td.ip;
2991                                 break;
2992                         case CEE_LDVIRTFTN: /* fallthrough */
2993                         case CEE_LDFTN: {
2994                                 MonoMethod *m;
2995                                 if (*td.ip == CEE_LDVIRTFTN) {
2996                                         CHECK_STACK (&td, 1);
2997                                         --td.sp;
2998                                 }
2999                                 token = read32 (td.ip + 1);
3000                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3001                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3002                                 else
3003                                         m = mono_get_method_full (image, token, NULL, generic_context);
3004
3005                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3006                                         m = mono_marshal_get_synchronized_wrapper (m);
3007
3008                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3009                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3010                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3011                                 td.ip += 5;
3012                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3013                                 break;
3014                         }
3015                         case CEE_LDARG:
3016                                 load_arg (&td, read16 (td.ip + 1));
3017                                 td.ip += 3;
3018                                 break;
3019                         case CEE_LDARGA: {
3020                                 int n = read16 (td.ip + 1);
3021                                 if (n == 0 && signature->hasthis) {
3022                                         g_error ("LDTHISA: NOPE");
3023                                         ADD_CODE(&td, MINT_LDTHISA);
3024                                 }
3025                                 else {
3026                                         ADD_CODE(&td, MINT_LDARGA);
3027                                         ADD_CODE(&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3028                                 }
3029                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3030                                 td.ip += 3;
3031                                 break;
3032                         }
3033                         case CEE_STARG:
3034                                 store_arg (&td, read16 (td.ip + 1));
3035                                 td.ip += 3;
3036                                 break;
3037                         case CEE_LDLOC:
3038                                 load_local (&td, read16 (td.ip + 1));
3039                                 td.ip += 3;
3040                                 break;
3041                         case CEE_LDLOCA:
3042                                 ADD_CODE(&td, MINT_LDLOCA_S);
3043                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3044                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3045                                 td.ip += 3;
3046                                 break;
3047                         case CEE_STLOC:
3048                                 store_local (&td, read16 (td.ip + 1));
3049                                 td.ip += 3;
3050                                 break;
3051                         case CEE_LOCALLOC:
3052                                 CHECK_STACK (&td, 1);
3053 #if SIZEOF_VOID_P == 8
3054                                 if (td.sp [-1].type == STACK_TYPE_I8)
3055                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3056 #endif
3057                                 ADD_CODE(&td, MINT_LOCALLOC);
3058                                 if (td.sp != td.stack + 1)
3059                                         g_warning("CEE_LOCALLOC: stack not empty");
3060                                 ++td.ip;
3061                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3062                                 break;
3063 #if 0
3064                         case CEE_UNUSED57: ves_abort(); break;
3065                         case CEE_ENDFILTER: ves_abort(); break;
3066 #endif
3067                         case CEE_UNALIGNED_:
3068                                 ++td.ip;
3069                                 /* FIX: should do something? */;
3070                                 break;
3071                         case CEE_VOLATILE_:
3072                                 ++td.ip;
3073                                 /* FIX: should do something? */;
3074                                 break;
3075                         case CEE_TAIL_:
3076                                 ++td.ip;
3077                                 /* FIX: should do something? */;
3078                                 break;
3079                         case CEE_INITOBJ:
3080                                 CHECK_STACK(&td, 1);
3081                                 token = read32 (td.ip + 1);
3082                                 klass = mono_class_get_full (image, token, generic_context);
3083                                 if (klass->valuetype) {
3084                                         ADD_CODE (&td, MINT_INITOBJ);
3085                                         i32 = mono_class_value_size (klass, NULL);
3086                                         WRITE32 (&td, &i32);
3087                                 } else {
3088                                         ADD_CODE (&td, MINT_LDNULL);
3089                                         ADD_CODE (&td, MINT_STIND_REF);
3090                                 }
3091                                 td.ip += 5;
3092                                 --td.sp;
3093                                 break;
3094                         case CEE_CPBLK:
3095                                 CHECK_STACK(&td, 3);
3096                                 /* FIX? convert length to I8? */
3097                                 ADD_CODE(&td, MINT_CPBLK);
3098                                 td.sp -= 3;
3099                                 ++td.ip;
3100                                 break;
3101                         case CEE_READONLY_:
3102                                 readonly = TRUE;
3103                                 td.ip += 1;
3104                                 break;
3105                         case CEE_CONSTRAINED_:
3106                                 token = read32 (td.ip + 1);
3107                                 constrained_class = mono_class_get_full (image, token, generic_context);
3108                                 mono_class_init (constrained_class);
3109                                 td.ip += 5;
3110                                 break;
3111                         case CEE_INITBLK:
3112                                 CHECK_STACK(&td, 3);
3113                                 ADD_CODE(&td, MINT_INITBLK);
3114                                 td.sp -= 3;
3115                                 break;
3116 #if 0
3117                         case CEE_NO_:
3118                                 /* FIXME: implement */
3119                                 ip += 2;
3120                                 break;
3121 #endif
3122                         case CEE_RETHROW:
3123                                 SIMPLE_OP (td, MINT_RETHROW);
3124                                 generating_code = 0;
3125                                 break;
3126                         case CEE_SIZEOF: {
3127                                 gint32 size;
3128                                 token = read32 (td.ip + 1);
3129                                 td.ip += 5;
3130                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3131                                         int align;
3132                                         MonoType *type = mono_type_create_from_typespec (image, token);
3133                                         size = mono_type_size (type, &align);
3134                                 } else {
3135                                         int align;
3136                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
3137                                         mono_class_init (szclass);
3138 #if 0
3139                                         if (!szclass->valuetype)
3140                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3141 #endif
3142                                         size = mono_type_size (&szclass->byval_arg, &align);
3143                                 }
3144                                 ADD_CODE(&td, MINT_LDC_I4);
3145                                 WRITE32(&td, &size);
3146                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3147                                 break;
3148                         }
3149 #if 0
3150                         case CEE_REFANYTYPE: ves_abort(); break;
3151 #endif
3152                         default:
3153                                 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);
3154                         }
3155                         break;
3156                 default:
3157                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3158                 }
3159
3160                 if (td.new_ip - td.new_code != new_in_start_offset)
3161                         td.last_new_ip = td.new_code + new_in_start_offset;
3162                 else if (td.is_bb_start [td.in_start - td.il_code])
3163                         td.is_bb_start [td.ip - td.il_code] = 1;
3164
3165                 td.last_ip = td.in_start;
3166         }
3167
3168         if (mono_interp_traceopt) {
3169                 const guint16 *p = td.new_code;
3170                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3171                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3172                 while (p < td.new_ip) {
3173                         p = mono_interp_dis_mintop(td.new_code, p);
3174                         printf("\n");
3175                 }
3176         }
3177         g_assert (td.max_stack_height <= (header->max_stack + 1));
3178
3179         rtm->clauses = mono_mempool_alloc (domain->mp, header->num_clauses * sizeof(MonoExceptionClause));
3180         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3181         rtm->code = mono_mempool_alloc (domain->mp, (td.new_ip - td.new_code) * sizeof(gushort));
3182         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3183         g_free (td.new_code);
3184         rtm->new_body_start = rtm->code + body_start_offset;
3185         rtm->num_clauses = header->num_clauses;
3186         for (i = 0; i < header->num_clauses; i++) {
3187                 MonoExceptionClause *c = rtm->clauses + i;
3188                 int end_off = c->try_offset + c->try_len;
3189                 c->try_offset = td.in_offsets [c->try_offset];
3190                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3191                 end_off = c->handler_offset + c->handler_len;
3192                 c->handler_offset = td.in_offsets [c->handler_offset];
3193                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3194         }
3195         rtm->vt_stack_size = td.max_vt_sp;
3196         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3197         rtm->data_items = mono_mempool_alloc (domain->mp, td.n_data_items * sizeof (td.data_items [0]));
3198         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3199         g_free (td.in_offsets);
3200         g_free (td.forward_refs);
3201         for (i = 0; i < header->code_size; ++i)
3202                 g_free (td.stack_state [i]);
3203         g_free (td.stack_state);
3204         g_free (td.stack_height);
3205         g_free (td.vt_stack_size);
3206         g_free (td.data_items);
3207         g_free (td.stack);
3208         g_hash_table_destroy (td.data_hash);
3209 }
3210
3211 static mono_mutex_t calc_section;
3212
3213 void
3214 mono_interp_transform_init (void)
3215 {
3216         mono_os_mutex_init_recursive(&calc_section);
3217 }
3218
3219 MonoException *
3220 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3221 {
3222         int i, align, size, offset;
3223         MonoMethod *method = runtime_method->method;
3224         MonoImage *image = method->klass->image;
3225         MonoMethodHeader *header = mono_method_get_header (method);
3226         MonoMethodSignature *signature = mono_method_signature (method);
3227         register const unsigned char *ip, *end;
3228         const MonoOpcode *opcode;
3229         MonoMethod *m;
3230         MonoClass *class;
3231         MonoDomain *domain = mono_domain_get ();
3232         unsigned char *is_bb_start;
3233         int in;
3234         MonoVTable *method_class_vt;
3235         int backwards;
3236         MonoGenericContext *generic_context = NULL;
3237
3238         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3239         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3240         if (!method_class_vt->initialized) {
3241                 jmp_buf env;
3242                 MonoInvocation *last_env_frame = context->env_frame;
3243                 jmp_buf *old_env = context->current_env;
3244
3245                 if (setjmp(env)) {
3246                         MonoException *failed = context->env_frame->ex;
3247                         context->env_frame->ex = NULL;
3248                         context->env_frame = last_env_frame;
3249                         context->current_env = old_env;
3250                         return failed;
3251                 }
3252                 context->env_frame = context->current_frame;
3253                 context->current_env = &env;
3254                 mono_runtime_class_init (method_class_vt);
3255                 context->env_frame = last_env_frame;
3256                 context->current_env = old_env;
3257         }
3258
3259         mono_profiler_method_jit (method); /* sort of... */
3260
3261         if (mono_method_signature (method)->is_inflated)
3262                 generic_context = mono_method_get_context (method);
3263         else {
3264                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3265                 if (generic_container)
3266                         generic_context = &generic_container->context;
3267         }
3268
3269         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3270                 MonoMethod *nm = NULL;
3271                 mono_os_mutex_lock(&calc_section);
3272                 if (runtime_method->transformed) {
3273                         mono_os_mutex_unlock(&calc_section);
3274                         g_error ("FIXME: no jit info?");
3275                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3276                         return NULL;
3277                 }
3278
3279                 /* assumes all internal calls with an array this are built in... */
3280                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3281                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3282                         signature = mono_method_signature (nm);
3283                 } else {
3284                         const char *name = method->name;
3285                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3286                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3287                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3288                                         g_assert (mi);
3289                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3290                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3291                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3292                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3293                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3294                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3295                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3296                                         nm = mono_marshal_get_delegate_end_invoke (method);
3297                                 }
3298                         }
3299                         if (nm == NULL) {
3300                                 runtime_method->code = g_malloc(sizeof(short));
3301                                 runtime_method->code[0] = MINT_CALLRUN;
3302                         }
3303                 }
3304                 if (nm == NULL) {
3305                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3306                         runtime_method->alloca_size = runtime_method->stack_size;
3307                         runtime_method->transformed = TRUE;
3308                         mono_os_mutex_unlock(&calc_section);
3309                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3310                         return NULL;
3311                 }
3312                 method = nm;
3313                 header = mono_method_get_header (nm);
3314                 mono_os_mutex_unlock(&calc_section);
3315         }
3316         g_assert ((signature->param_count + signature->hasthis) < 1000);
3317         g_assert (header->max_stack < 10000);
3318         /* intern the strings in the method. */
3319         ip = header->code;
3320         end = ip + header->code_size;
3321
3322         is_bb_start = g_malloc0(header->code_size);
3323         is_bb_start [0] = 1;
3324         while (ip < end) {
3325                 in = *ip;
3326                 if (in == 0xfe) {
3327                         ip++;
3328                         in = *ip + 256;
3329                 }
3330                 else if (in == 0xf0) {
3331                         ip++;
3332                         in = *ip + MONO_CEE_MONO_ICALL;
3333                 }
3334                 opcode = &mono_opcodes [in];
3335                 switch (opcode->argument) {
3336                 case MonoInlineNone:
3337                         ++ip;
3338                         break;
3339                 case MonoInlineString:
3340                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3341                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3342                         ip += 5;
3343                         break;
3344                 case MonoInlineType:
3345                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3346                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
3347                                 mono_class_init (class);
3348                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3349 #if 0
3350                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3351                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3352                                         mono_class_vtable (domain, class);
3353 #endif
3354                         }
3355                         ip += 5;
3356                         break;
3357                 case MonoInlineMethod:
3358                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3359                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3360                                 if (m == NULL) {
3361                                         g_free (is_bb_start);
3362                                         g_error ("FIXME: where to get method and class string?");
3363                                         return NULL;
3364                                         // return mono_get_exception_missing_method ();
3365                                 }
3366                                 mono_class_init (m->klass);
3367                                 if (!mono_class_is_interface (m->klass))
3368                                         mono_class_vtable (domain, m->klass);
3369                         }
3370                         ip += 5;
3371                         break;
3372                 case MonoInlineField:
3373                 case MonoInlineSig:
3374                 case MonoInlineI:
3375                 case MonoInlineTok:
3376                 case MonoShortInlineR:
3377                         ip += 5;
3378                         break;
3379                 case MonoInlineBrTarget:
3380                         offset = read32 (ip + 1);
3381                         ip += 5;
3382                         backwards = offset < 0;
3383                         offset += ip - header->code;
3384                         g_assert (offset >= 0 && offset < header->code_size);
3385                         is_bb_start [offset] |= backwards ? 2 : 1;
3386                         break;
3387                 case MonoShortInlineBrTarget:
3388                         offset = ((gint8 *)ip) [1];
3389                         ip += 2;
3390                         backwards = offset < 0;
3391                         offset += ip - header->code;
3392                         g_assert (offset >= 0 && offset < header->code_size);
3393                         is_bb_start [offset] |= backwards ? 2 : 1;
3394                         break;
3395                 case MonoInlineVar:
3396                         ip += 3;
3397                         break;
3398                 case MonoShortInlineVar:
3399                 case MonoShortInlineI:
3400                         ip += 2;
3401                         break;
3402                 case MonoInlineSwitch: {
3403                         guint32 n;
3404                         const unsigned char *next_ip;
3405                         ++ip;
3406                         n = read32 (ip);
3407                         ip += 4;
3408                         next_ip = ip + 4 * n;
3409                         for (i = 0; i < n; i++) {
3410                                 offset = read32 (ip);
3411                                 backwards = offset < 0;
3412                                 offset += next_ip - header->code;
3413                                 g_assert (offset >= 0 && offset < header->code_size);
3414                                 is_bb_start [offset] |= backwards ? 2 : 1;
3415                                 ip += 4;
3416                         }
3417                         break;
3418                 }
3419                 case MonoInlineR:
3420                 case MonoInlineI8:
3421                         ip += 9;
3422                         break;
3423                 default:
3424                         g_assert_not_reached ();
3425                 }
3426         }
3427         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3428
3429         /* the rest needs to be locked so it is only done once */
3430         mono_os_mutex_lock(&calc_section);
3431         if (runtime_method->transformed) {
3432                 mono_os_mutex_unlock(&calc_section);
3433                 g_free (is_bb_start);
3434                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3435                 return NULL;
3436         }
3437
3438         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3439         runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3440         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3441         offset = 0;
3442         for (i = 0; i < header->num_locals; ++i) {
3443                 size = mono_type_size (header->locals [i], &align);
3444                 offset += align - 1;
3445                 offset &= ~(align - 1);
3446                 runtime_method->local_offsets [i] = offset;
3447                 offset += size;
3448         }
3449         offset = (offset + 7) & ~7;
3450         runtime_method->locals_size = offset;
3451         g_assert (runtime_method->locals_size < 65536);
3452         offset = 0;
3453         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3454
3455         if (signature->hasthis) {
3456                 g_assert (!signature->pinvoke);
3457                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3458                 offset += align - 1;
3459                 offset &= ~(align - 1);
3460                 runtime_method->arg_offsets [0] = offset;
3461                 offset += size;
3462         }
3463
3464         for (i = 0; i < signature->param_count; ++i) {
3465                 if (signature->pinvoke) {
3466                         guint32 dummy;
3467                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3468                         align = 8;
3469                 }
3470                 else
3471                         size = mono_type_stack_size (signature->params [i], &align);
3472                 offset += align - 1;
3473                 offset &= ~(align - 1);
3474                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3475                 offset += size;
3476         }
3477         offset = (offset + 7) & ~7;
3478         runtime_method->args_size = offset;
3479         g_assert (runtime_method->args_size < 10000);
3480
3481         generate (method, runtime_method, is_bb_start, generic_context);
3482
3483         g_free (is_bb_start);
3484
3485         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3486         runtime_method->transformed = TRUE;
3487         mono_os_mutex_unlock(&calc_section);
3488
3489         return NULL;
3490 }
3491