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