mono/mini/interpreter/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                         target_method = NULL;
 665                 } else {
 666                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 667                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 668                         else
 669                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 670                         csignature = mono_method_signature (target_method);
 671                         if (target_method->klass == mono_defaults.string_class) {
 672                                 if (target_method->name [0] == 'g') {
 673                                         if (strcmp (target_method->name, "get_Chars") == 0)
 674                                                 op = MINT_GETCHR;
 675                                         else if (strcmp (target_method->name, "get_Length") == 0)
 676                                                 op = MINT_STRLEN;
 677                                 }
 678                         } else if (target_method->klass == mono_defaults.array_class) {
 679                                 if (strcmp (target_method->name, "get_Rank") == 0)
 680                                         op = MINT_ARRAY_RANK;
 681                                 else if (strcmp (target_method->name, "get_Length") == 0)
 682                                         op = MINT_LDLEN;
 683                         }
 684                 }
 685         } else {
 686                 csignature = mono_method_signature (target_method);
 687         }
 688
 689         if (constrained_class) {
 690                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 691                         /* Use the corresponding method from the base type to avoid boxing */
 692                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 693                         g_assert (base_type);
 694                         constrained_class = mono_class_from_mono_type (base_type);
 695                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 696                         g_assert (target_method);
 697                 }
 698         }
 699
 700         if (constrained_class) {
 701                 mono_class_setup_vtable (constrained_class);
 702 #if DEBUG_INTERP
 703                 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);
 704 #endif
 705                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 706 #if DEBUG_INTERP
 707                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 708 #endif
 709                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 710                 mono_class_setup_vtable (target_method->klass);
 711
 712                 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)) {
 713                         ADD_CODE (td, MINT_BOX);
 714                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 715                         ADD_CODE (td, csignature->param_count);
 716                 } else if (!constrained_class->valuetype) {
 717                         /* managed pointer on the stack, we need to deref that puppy */
 718                         ADD_CODE (td, MINT_LDIND_I);
 719                         ADD_CODE (td, csignature->param_count);
 720                 } else {
 721                         g_assert (target_method->klass->valuetype);
 722                         virtual = FALSE;
 723                 }
 724         }
 725
 726         if (target_method)
 727                 mono_class_init (target_method->klass);
 728
 729         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 730         if (!calli && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 731                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 732                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
 733                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 734                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 735
 736                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 737                         int offset;
 738                         if (mono_interp_traceopt)
 739                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 740                         for (i = csignature->param_count - 1; i >= 0; --i)
 741                                 store_arg (td, i + csignature->hasthis);
 742
 743                         if (csignature->hasthis) {
 744                                 g_error ("STTHIS removal");
 745                                 // ADD_CODE(td, MINT_STTHIS);
 746                                 --td->sp;
 747                         }
 748                         ADD_CODE(td, MINT_BR_S);
 749                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 750                         ADD_CODE(td, offset);
 751                         if (!is_bb_start [td->ip + 5 - td->il_code])
 752                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 753                         td->ip += 5;
 754                         return;
 755                 } else {
 756                         /* mheader might not exist if this is a delegate invoc, etc */
 757                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 758                                 if (mono_interp_traceopt)
 759                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 760                                 for (i = 0; i < csignature->param_count; i++)
 761                                         ADD_CODE(td, MINT_POP); /*FIX: vt */
 762                                 if (csignature->hasthis) {
 763                                         if (virtual)
 764                                                 ADD_CODE(td, MINT_CKNULL);
 765                                         ADD_CODE(td, MINT_POP);
 766                                 }
 767                                 td->sp -= csignature->param_count + csignature->hasthis;
 768                                 td->ip += 5;
 769                                 return;
 770                         }
 771                 }
 772         }
 773         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 774                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 775                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 776                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 777                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 778         }
 779         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 780         td->sp -= csignature->param_count + !!csignature->hasthis;
 781         for (i = 0; i < csignature->param_count; ++i) {
 782                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 783                         gint32 size;
 784                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 785                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 786                                 size = mono_class_native_size (klass, NULL);
 787                         else
 788                                 size = mono_class_value_size (klass, NULL);
 789                         size = (size + 7) & ~7;
 790                         vt_stack_used += size;
 791                 }
 792         }
 793
 794         /* need to handle typedbyref ... */
 795         if (csignature->ret->type != MONO_TYPE_VOID) {
 796                 int mt = mint_type(csignature->ret);
 797                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 798                 if (mt == MINT_TYPE_VT) {
 799                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 800                                 vt_res_size = mono_class_native_size (klass, NULL);
 801                         else
 802                                 vt_res_size = mono_class_value_size (klass, NULL);
 803                         PUSH_VT(td, vt_res_size);
 804                 }
 805                 PUSH_TYPE(td, stack_type[mt], klass);
 806         } else
 807                 is_void = TRUE;
 808
 809         if (op >= 0) {
 810                 ADD_CODE(td, op);
 811 #if SIZEOF_VOID_P == 8
 812                 if (op == MINT_LDLEN)
 813                         ADD_CODE(td, MINT_CONV_I4_I8);
 814 #endif
 815         } else {
 816                 if (calli)
 817                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 818                 else if (virtual)
 819                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 820                 else
 821                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 822
 823                 if (calli) {
 824                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 825                 } else {
 826                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 827                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 828                 }
 829         }
 830         td->ip += 5;
 831         if (vt_stack_used != 0 || vt_res_size != 0) {
 832                 ADD_CODE(td, MINT_VTRESULT);
 833                 ADD_CODE(td, vt_res_size);
 834                 WRITE32(td, &vt_stack_used);
 835                 td->vt_sp -= vt_stack_used;
 836         }
 837 }
 838
 839 static void
 840 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start)
 841 {
 842         MonoMethodHeader *header = mono_method_get_header (method);
 843         MonoMethodSignature *signature = mono_method_signature (method);
 844         MonoImage *image = method->klass->image;
 845         MonoDomain *domain = mono_domain_get ();
 846         MonoGenericContext *generic_context = NULL;
 847         MonoClass *constrained_class = NULL;
 848         MonoError error;
 849         int offset, mt;
 850         int i;
 851         int i32;
 852         MonoClass *klass;
 853         MonoClassField *field;
 854         const unsigned char *end;
 855         int new_in_start_offset;
 856         int body_start_offset;
 857         int target;
 858         guint32 token;
 859         TransformData td;
 860         int generating_code = 1;
 861
 862         if (mono_method_signature (method)->is_inflated)
 863                 generic_context = &((MonoMethodInflated *) method)->context;
 864
 865         memset(&td, 0, sizeof(td));
 866         td.method = method;
 867         td.rtm = rtm;
 868         td.is_bb_start = is_bb_start;
 869         td.il_code = header->code;
 870         td.code_size = header->code_size;
 871         td.header = header;
 872         td.max_code_size = td.code_size;
 873         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 874         td.new_code_end = td.new_code + td.max_code_size;
 875         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 876         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 877         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 878         td.stack_height = g_malloc(header->code_size * sizeof(int));
 879         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 880         td.n_data_items = 0;
 881         td.max_data_items = 0;
 882         td.data_items = NULL;
 883         td.data_hash = g_hash_table_new (NULL, NULL);
 884         rtm->data_items = td.data_items;
 885         for (i = 0; i < header->code_size; i++) {
 886                 td.forward_refs [i] = -1;
 887                 td.stack_height [i] = -1;
 888         }
 889         td.new_ip = td.new_code;
 890         td.last_new_ip = NULL;
 891
 892         td.stack = g_malloc0(header->max_stack * sizeof(td.stack[0]));
 893         td.sp = td.stack;
 894         td.max_stack_height = 0;
 895
 896         for (i = 0; i < header->num_clauses; i++) {
 897                 MonoExceptionClause *c = header->clauses + i;
 898                 td.stack_height [c->handler_offset] = 0;
 899                 td.vt_stack_size [c->handler_offset] = 0;
 900                 td.is_bb_start [c->handler_offset] = 1;
 901                 if (c->flags == MONO_EXCEPTION_CLAUSE_NONE) {
 902                         td.stack_height [c->handler_offset] = 1;
 903                         td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 904                         td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 905                         td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 906                 }
 907         }
 908
 909         td.ip = header->code;
 910         end = td.ip + header->code_size;
 911
 912         if (mono_interp_traceopt) {
 913                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 914                 char *name = mono_method_full_name (method, TRUE);
 915                 g_print ("Method %s, original code:\n", name);
 916                 g_print ("%s\n", tmp);
 917                 g_free (tmp);
 918                 g_free (name);
 919         }
 920
 921         if (signature->hasthis)
 922                 store_inarg (&td, 0);
 923         for (i = 0; i < signature->param_count; i++)
 924                 store_inarg (&td, i + !!signature->hasthis);
 925
 926         body_start_offset = td.new_ip - td.new_code;
 927
 928         for (i = 0; i < header->num_locals; i++) {
 929                 int mt = mint_type(header->locals [i]);
 930                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O) {
 931                         ADD_CODE(&td, MINT_INITLOCALS);
 932                         break;
 933                 }
 934         }
 935
 936         while (td.ip < end) {
 937                 int in_offset;
 938
 939                 g_assert (td.sp >= td.stack);
 940                 g_assert (td.vt_sp < 0x10000000);
 941                 in_offset = td.ip - header->code;
 942                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
 943                 new_in_start_offset = td.new_ip - td.new_code;
 944                 td.in_start = td.ip;
 945                 while (td.forward_refs [in_offset] >= 0) {
 946                         int j = td.forward_refs [in_offset];
 947                         int slot;
 948                         td.forward_refs [in_offset] = td.forward_refs [j];
 949                         if (td.in_offsets [j] < 0) {
 950                                 int old_switch_offset = -td.in_offsets [j];
 951                                 int new_switch_offset = td.in_offsets [old_switch_offset];
 952                                 int switch_case = (j - old_switch_offset - 5) / 4;
 953                                 int n_cases = read32 (header->code + old_switch_offset + 1);
 954                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
 955                                 slot = new_switch_offset + 3 + 2 * switch_case;
 956                                 td.new_code [slot] = * (unsigned short *)(&offset);
 957                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
 958                         } else {
 959                                 int op = td.new_code [td.in_offsets [j]];
 960                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
 961                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
 962                                         g_assert (offset <= 32767);
 963                                         slot = td.in_offsets [j] + 1;
 964                                         td.new_code [slot] = offset;
 965                                 } else {
 966                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
 967                                         slot = td.in_offsets [j] + 1;
 968                                         td.new_code [slot] = * (unsigned short *)(&offset);
 969                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
 970                                 }
 971                         }
 972                 }
 973                 if (td.stack_height [in_offset] >= 0) {
 974                         g_assert (is_bb_start [in_offset]);
 975                         if (td.stack_height [in_offset] > 0)
 976                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
 977                         td.sp = td.stack + td.stack_height [in_offset];
 978                         td.vt_sp = td.vt_stack_size [in_offset];
 979                 }
 980                 if (is_bb_start [in_offset]) {
 981                         generating_code = 1;
 982                 }
 983                 if (!generating_code) {
 984                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
 985                                 ++td.ip;
 986                         continue;
 987                 }
 988                 if (mono_interp_traceopt > 1) {
 989                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
 990                                 td.ip - td.il_code,
 991                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
 992                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
 993                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
 994                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
 995                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
 996                                 (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) : "",
 997                                 td.vt_sp, td.max_vt_sp);
 998                 }
 999                 switch (*td.ip) {
1000                 case CEE_NOP:
1001                         /* lose it */
1002                         ++td.ip;
1003                         break;
1004                 case CEE_BREAK:
1005                         SIMPLE_OP(td, MINT_BREAK);
1006                         break;
1007                 case CEE_LDARG_0:
1008                 case CEE_LDARG_1:
1009                 case CEE_LDARG_2:
1010                 case CEE_LDARG_3:
1011                         load_arg (&td, *td.ip - CEE_LDARG_0);
1012                         ++td.ip;
1013                         break;
1014                 case CEE_LDLOC_0:
1015                 case CEE_LDLOC_1:
1016                 case CEE_LDLOC_2:
1017                 case CEE_LDLOC_3:
1018                         load_local (&td, *td.ip - CEE_LDLOC_0);
1019                         ++td.ip;
1020                         break;
1021                 case CEE_STLOC_0:
1022                 case CEE_STLOC_1:
1023                 case CEE_STLOC_2:
1024                 case CEE_STLOC_3:
1025                         store_local (&td, *td.ip - CEE_STLOC_0);
1026                         ++td.ip;
1027                         break;
1028                 case CEE_LDARG_S:
1029                         load_arg (&td, ((guint8 *)td.ip)[1]);
1030                         td.ip += 2;
1031                         break;
1032                 case CEE_LDARGA_S: {
1033                         /* NOTE: n includes this */
1034                         int n = ((guint8 *)td.ip)[1];
1035                         if (n == 0 && signature->hasthis) {
1036                                 g_error ("LDTHISA: NOPE");
1037                                 ADD_CODE(&td, MINT_LDTHISA);
1038                         }
1039                         else {
1040                                 ADD_CODE(&td, MINT_LDARGA);
1041                                 ADD_CODE(&td, td.rtm->arg_offsets [n]);
1042                         }
1043                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1044                         td.ip += 2;
1045                         break;
1046                 }
1047                 case CEE_STARG_S:
1048                         store_arg (&td, ((guint8 *)td.ip)[1]);
1049                         td.ip += 2;
1050                         break;
1051                 case CEE_LDLOC_S:
1052                         load_local (&td, ((guint8 *)td.ip)[1]);
1053                         td.ip += 2;
1054                         break;
1055                 case CEE_LDLOCA_S:
1056                         ADD_CODE(&td, MINT_LDLOCA_S);
1057                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1058                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1059                         td.ip += 2;
1060                         break;
1061                 case CEE_STLOC_S:
1062                         store_local (&td, ((guint8 *)td.ip)[1]);
1063                         td.ip += 2;
1064                         break;
1065                 case CEE_LDNULL:
1066                         SIMPLE_OP(td, MINT_LDNULL);
1067                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1068                         break;
1069                 case CEE_LDC_I4_M1:
1070                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1071                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1072                         break;
1073                 case CEE_LDC_I4_0:
1074                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1075                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1076                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1077                                 td.ip += 2;
1078                         } else {
1079                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1080                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1081                         }
1082                         break;
1083                 case CEE_LDC_I4_1:
1084                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1085                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1086                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1087                                 td.ip += 2;
1088                         } else {
1089                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1090                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1091                         }
1092                         break;
1093                 case CEE_LDC_I4_2:
1094                 case CEE_LDC_I4_3:
1095                 case CEE_LDC_I4_4:
1096                 case CEE_LDC_I4_5:
1097                 case CEE_LDC_I4_6:
1098                 case CEE_LDC_I4_7:
1099                 case CEE_LDC_I4_8:
1100                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1101                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1102                         break;
1103                 case CEE_LDC_I4_S:
1104                         ADD_CODE(&td, MINT_LDC_I4_S);
1105                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1106                         td.ip += 2;
1107                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1108                         break;
1109                 case CEE_LDC_I4:
1110                         i32 = read32 (td.ip + 1);
1111                         ADD_CODE(&td, MINT_LDC_I4);
1112                         WRITE32(&td, &i32);
1113                         td.ip += 5;
1114                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1115                         break;
1116                 case CEE_LDC_I8: {
1117                         gint64 val = read64 (td.ip + 1);
1118                         ADD_CODE(&td, MINT_LDC_I8);
1119                         WRITE64(&td, &val);
1120                         td.ip += 9;
1121                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1122                         break;
1123                 }
1124                 case CEE_LDC_R4: {
1125                         float val;
1126                         readr4 (td.ip + 1, &val);
1127                         ADD_CODE(&td, MINT_LDC_R4);
1128                         WRITE32(&td, &val);
1129                         td.ip += 5;
1130                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1131                         break;
1132                 }
1133                 case CEE_LDC_R8: {
1134                         double val;
1135                         readr8 (td.ip + 1, &val);
1136                         ADD_CODE(&td, MINT_LDC_R8);
1137                         WRITE64(&td, &val);
1138                         td.ip += 9;
1139                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1140                         break;
1141                 }
1142                 case CEE_DUP: {
1143                         int type = td.sp [-1].type;
1144                         MonoClass *klass = td.sp [-1].klass;
1145                         if (td.sp [-1].type == STACK_TYPE_VT) {
1146                                 gint32 size = mono_class_value_size (klass, NULL);
1147                                 PUSH_VT(&td, size);
1148                                 ADD_CODE(&td, MINT_DUP_VT);
1149                                 WRITE32(&td, &size);
1150                                 td.ip ++;
1151                         } else
1152                                 SIMPLE_OP(td, MINT_DUP);
1153                         PUSH_TYPE(&td, type, klass);
1154                         break;
1155                 }
1156                 case CEE_POP:
1157                         CHECK_STACK(&td, 1);
1158                         SIMPLE_OP(td, MINT_POP);
1159                         if (td.sp [-1].type == STACK_TYPE_VT) {
1160                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1161                                 size = (size + 7) & ~7;
1162                                 ADD_CODE(&td, MINT_VTRESULT);
1163                                 ADD_CODE(&td, 0);
1164                                 WRITE32(&td, &size);
1165                                 td.vt_sp -= size;
1166                         }
1167                         --td.sp;
1168                         break;
1169                 case CEE_JMP: {
1170                         MonoMethod *m;
1171                         if (td.sp > td.stack)
1172                                 g_warning ("CEE_JMP: stack must be empty");
1173                         token = read32 (td.ip + 1);
1174                         m = mono_get_method_full (image, token, NULL, generic_context);
1175                         ADD_CODE (&td, MINT_JMP);
1176                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1177                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1178                         td.ip += 5;
1179                         break;
1180                 }
1181                 case CEE_CALLVIRT: /* Fall through */
1182                 case CEE_CALLI:    /* Fall through */
1183                 case CEE_CALL: {
1184                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class);
1185                         constrained_class = NULL;
1186                         break;
1187                 }
1188                 case CEE_RET: {
1189                         int vt_size = 0;
1190                         if (signature->ret->type != MONO_TYPE_VOID) {
1191                                 --td.sp;
1192                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1193                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1194                                         vt_size = mono_class_value_size (klass, NULL);
1195                                         vt_size = (vt_size + 7) & ~7;
1196                                 }
1197                         }
1198                         if (td.sp > td.stack)
1199                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1200                         if (td.vt_sp != vt_size)
1201                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1202                         if (vt_size == 0)
1203                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1204                         else {
1205                                 ADD_CODE(&td, MINT_RET_VT);
1206                                 WRITE32(&td, &vt_size);
1207                                 ++td.ip;
1208                         }
1209                         generating_code = 0;
1210                         break;
1211                 }
1212                 case CEE_BR:
1213                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1214                         td.ip += 5;
1215                         generating_code = 0;
1216                         break;
1217                 case CEE_BR_S:
1218                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1219                         td.ip += 2;
1220                         generating_code = 0;
1221                         break;
1222                 case CEE_BRFALSE:
1223                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1224                         td.ip += 5;
1225                         break;
1226                 case CEE_BRFALSE_S:
1227                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1228                         td.ip += 2;
1229                         break;
1230                 case CEE_BRTRUE:
1231                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1232                         td.ip += 5;
1233                         break;
1234                 case CEE_BRTRUE_S:
1235                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1236                         td.ip += 2;
1237                         break;
1238                 case CEE_BEQ:
1239                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1240                         td.ip += 5;
1241                         break;
1242                 case CEE_BEQ_S:
1243                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1244                         td.ip += 2;
1245                         break;
1246                 case CEE_BGE:
1247                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1248                         td.ip += 5;
1249                         break;
1250                 case CEE_BGE_S:
1251                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1252                         td.ip += 2;
1253                         break;
1254                 case CEE_BGT:
1255                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1256                         td.ip += 5;
1257                         break;
1258                 case CEE_BGT_S:
1259                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1260                         td.ip += 2;
1261                         break;
1262                 case CEE_BLT:
1263                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1264                         td.ip += 5;
1265                         break;
1266                 case CEE_BLT_S:
1267                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1268                         td.ip += 2;
1269                         break;
1270                 case CEE_BLE:
1271                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1272                         td.ip += 5;
1273                         break;
1274                 case CEE_BLE_S:
1275                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1276                         td.ip += 2;
1277                         break;
1278                 case CEE_BNE_UN:
1279                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1280                         td.ip += 5;
1281                         break;
1282                 case CEE_BNE_UN_S:
1283                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1284                         td.ip += 2;
1285                         break;
1286                 case CEE_BGE_UN:
1287                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1288                         td.ip += 5;
1289                         break;
1290                 case CEE_BGE_UN_S:
1291                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1292                         td.ip += 2;
1293                         break;
1294                 case CEE_BGT_UN:
1295                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1296                         td.ip += 5;
1297                         break;
1298                 case CEE_BGT_UN_S:
1299                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1300                         td.ip += 2;
1301                         break;
1302                 case CEE_BLE_UN:
1303                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1304                         td.ip += 5;
1305                         break;
1306                 case CEE_BLE_UN_S:
1307                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1308                         td.ip += 2;
1309                         break;
1310                 case CEE_BLT_UN:
1311                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1312                         td.ip += 5;
1313                         break;
1314                 case CEE_BLT_UN_S:
1315                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1316                         td.ip += 2;
1317                         break;
1318                 case CEE_SWITCH: {
1319                         guint32 n;
1320                         const unsigned char *next_ip;
1321                         const unsigned char *base_ip = td.ip;
1322                         unsigned short *next_new_ip;
1323                         ++td.ip;
1324                         n = read32 (td.ip);
1325                         ADD_CODE(&td, MINT_SWITCH);
1326                         ADD_CODE(&td, * (unsigned short *)(&n));
1327                         ADD_CODE(&td, * ((unsigned short *)&n + 1));
1328                         td.ip += 4;
1329                         next_ip = td.ip + n * 4;
1330                         next_new_ip = td.new_ip + n * 2;
1331                         for (i = 0; i < n; i++) {
1332                                 offset = read32 (td.ip);
1333                                 target = next_ip - td.il_code + offset;
1334                                 if (offset < 0)
1335                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1336                                 else {
1337                                         int prev = td.forward_refs [target];
1338                                         td.forward_refs [td.ip - td.il_code] = prev;
1339                                         td.forward_refs [target] = td.ip - td.il_code;
1340                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1341                                 }
1342                                 ADD_CODE(&td, * (unsigned short *)(&target));
1343                                 ADD_CODE(&td, * ((unsigned short *)&target + 1));
1344                                 td.ip += 4;
1345                         }
1346                         --td.sp;
1347                         break;
1348                 }
1349                 case CEE_LDIND_I1:
1350                         CHECK_STACK (&td, 1);
1351                         SIMPLE_OP (td, MINT_LDIND_I1);
1352                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1353                         break;
1354                 case CEE_LDIND_U1:
1355                         CHECK_STACK (&td, 1);
1356                         SIMPLE_OP (td, MINT_LDIND_U1);
1357                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1358                         break;
1359                 case CEE_LDIND_I2:
1360                         CHECK_STACK (&td, 1);
1361                         SIMPLE_OP (td, MINT_LDIND_I2);
1362                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1363                         break;
1364                 case CEE_LDIND_U2:
1365                         CHECK_STACK (&td, 1);
1366                         SIMPLE_OP (td, MINT_LDIND_U2);
1367                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1368                         break;
1369                 case CEE_LDIND_I4:
1370                         CHECK_STACK (&td, 1);
1371                         SIMPLE_OP (td, MINT_LDIND_I4);
1372                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1373                         break;
1374                 case CEE_LDIND_U4:
1375                         CHECK_STACK (&td, 1);
1376                         SIMPLE_OP (td, MINT_LDIND_U4);
1377                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1378                         break;
1379                 case CEE_LDIND_I8:
1380                         CHECK_STACK (&td, 1);
1381                         SIMPLE_OP (td, MINT_LDIND_I8);
1382                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1383                         break;
1384                 case CEE_LDIND_I:
1385                         CHECK_STACK (&td, 1);
1386                         SIMPLE_OP (td, MINT_LDIND_I);
1387                         ADD_CODE (&td, 0);
1388                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1389                         break;
1390                 case CEE_LDIND_R4:
1391                         CHECK_STACK (&td, 1);
1392                         SIMPLE_OP (td, MINT_LDIND_R4);
1393                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1394                         break;
1395                 case CEE_LDIND_R8:
1396                         CHECK_STACK (&td, 1);
1397                         SIMPLE_OP (td, MINT_LDIND_R8);
1398                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1399                         break;
1400                 case CEE_LDIND_REF:
1401                         CHECK_STACK (&td, 1);
1402                         SIMPLE_OP (td, MINT_LDIND_REF);
1403                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1404                         break;
1405                 case CEE_STIND_REF:
1406                         CHECK_STACK (&td, 2);
1407                         SIMPLE_OP (td, MINT_STIND_REF);
1408                         td.sp -= 2;
1409                         break;
1410                 case CEE_STIND_I1:
1411                         CHECK_STACK (&td, 2);
1412                         SIMPLE_OP (td, MINT_STIND_I1);
1413                         td.sp -= 2;
1414                         break;
1415                 case CEE_STIND_I2:
1416                         CHECK_STACK (&td, 2);
1417                         SIMPLE_OP (td, MINT_STIND_I2);
1418                         td.sp -= 2;
1419                         break;
1420                 case CEE_STIND_I4:
1421                         CHECK_STACK (&td, 2);
1422                         SIMPLE_OP (td, MINT_STIND_I4);
1423                         td.sp -= 2;
1424                         break;
1425                 case CEE_STIND_I:
1426                         CHECK_STACK (&td, 2);
1427                         SIMPLE_OP (td, MINT_STIND_I);
1428                         td.sp -= 2;
1429                         break;
1430                 case CEE_STIND_I8:
1431                         CHECK_STACK (&td, 2);
1432                         SIMPLE_OP (td, MINT_STIND_I8);
1433                         td.sp -= 2;
1434                         break;
1435                 case CEE_STIND_R4:
1436                         CHECK_STACK (&td, 2);
1437                         SIMPLE_OP (td, MINT_STIND_R4);
1438                         td.sp -= 2;
1439                         break;
1440                 case CEE_STIND_R8:
1441                         CHECK_STACK (&td, 2);
1442                         SIMPLE_OP (td, MINT_STIND_R8);
1443                         td.sp -= 2;
1444                         break;
1445                 case CEE_ADD:
1446                         binary_arith_op(&td, MINT_ADD_I4);
1447                         ++td.ip;
1448                         break;
1449                 case CEE_SUB:
1450                         binary_arith_op(&td, MINT_SUB_I4);
1451                         ++td.ip;
1452                         break;
1453                 case CEE_MUL:
1454                         binary_arith_op(&td, MINT_MUL_I4);
1455                         ++td.ip;
1456                         break;
1457                 case CEE_DIV:
1458                         binary_arith_op(&td, MINT_DIV_I4);
1459                         ++td.ip;
1460                         break;
1461                 case CEE_DIV_UN:
1462                         binary_arith_op(&td, MINT_DIV_UN_I4);
1463                         ++td.ip;
1464                         break;
1465                 case CEE_REM:
1466                         binary_int_op (&td, MINT_REM_I4);
1467                         ++td.ip;
1468                         break;
1469                 case CEE_REM_UN:
1470                         binary_int_op (&td, MINT_REM_UN_I4);
1471                         ++td.ip;
1472                         break;
1473                 case CEE_AND:
1474                         binary_int_op (&td, MINT_AND_I4);
1475                         ++td.ip;
1476                         break;
1477                 case CEE_OR:
1478                         binary_int_op (&td, MINT_OR_I4);
1479                         ++td.ip;
1480                         break;
1481                 case CEE_XOR:
1482                         binary_int_op (&td, MINT_XOR_I4);
1483                         ++td.ip;
1484                         break;
1485                 case CEE_SHL:
1486                         shift_op (&td, MINT_SHL_I4);
1487                         ++td.ip;
1488                         break;
1489                 case CEE_SHR:
1490                         shift_op (&td, MINT_SHR_I4);
1491                         ++td.ip;
1492                         break;
1493                 case CEE_SHR_UN:
1494                         shift_op (&td, MINT_SHR_UN_I4);
1495                         ++td.ip;
1496                         break;
1497                 case CEE_NEG:
1498                         unary_arith_op (&td, MINT_NEG_I4);
1499                         ++td.ip;
1500                         break;
1501                 case CEE_NOT:
1502                         unary_arith_op (&td, MINT_NOT_I4);
1503                         ++td.ip;
1504                         break;
1505                 case CEE_CONV_U1:
1506                         CHECK_STACK (&td, 1);
1507                         switch (td.sp [-1].type) {
1508                         case STACK_TYPE_R8:
1509                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1510                                 break;
1511                         case STACK_TYPE_I4:
1512                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1513                                 break;
1514                         case STACK_TYPE_I8:
1515                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1516                                 break;
1517                         default:
1518                                 g_assert_not_reached ();
1519                         }
1520                         ++td.ip;
1521                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1522                         break;
1523                 case CEE_CONV_I1:
1524                         CHECK_STACK (&td, 1);
1525                         switch (td.sp [-1].type) {
1526                         case STACK_TYPE_R8:
1527                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1528                                 break;
1529                         case STACK_TYPE_I4:
1530                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1531                                 break;
1532                         case STACK_TYPE_I8:
1533                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1534                                 break;
1535                         default:
1536                                 g_assert_not_reached ();
1537                         }
1538                         ++td.ip;
1539                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1540                         break;
1541                 case CEE_CONV_U2:
1542                         CHECK_STACK (&td, 1);
1543                         switch (td.sp [-1].type) {
1544                         case STACK_TYPE_R8:
1545                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1546                                 break;
1547                         case STACK_TYPE_I4:
1548                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1549                                 break;
1550                         case STACK_TYPE_I8:
1551                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1552                                 break;
1553                         default:
1554                                 g_assert_not_reached ();
1555                         }
1556                         ++td.ip;
1557                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1558                         break;
1559                 case CEE_CONV_I2:
1560                         CHECK_STACK (&td, 1);
1561                         switch (td.sp [-1].type) {
1562                         case STACK_TYPE_R8:
1563                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1564                                 break;
1565                         case STACK_TYPE_I4:
1566                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1567                                 break;
1568                         case STACK_TYPE_I8:
1569                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1570                                 break;
1571                         default:
1572                                 g_assert_not_reached ();
1573                         }
1574                         ++td.ip;
1575                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1576                         break;
1577                 case CEE_CONV_U:
1578                         CHECK_STACK (&td, 1);
1579                         switch (td.sp [-1].type) {
1580                         case STACK_TYPE_R8:
1581 #if SIZEOF_VOID_P == 4
1582                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1583 #else
1584                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1585 #endif
1586                                 break;
1587                         case STACK_TYPE_I4:
1588 #if SIZEOF_VOID_P == 8
1589                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1590 #endif
1591                                 break;
1592                         case STACK_TYPE_I8:
1593 #if SIZEOF_VOID_P == 4
1594                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1595 #endif
1596                                 break;
1597                         case STACK_TYPE_MP:
1598                                 break;
1599                         default:
1600                                 g_assert_not_reached ();
1601                         }
1602                         ++td.ip;
1603                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1604                         break;
1605                 case CEE_CONV_I:
1606                         CHECK_STACK (&td, 1);
1607                         switch (td.sp [-1].type) {
1608                         case STACK_TYPE_R8:
1609 #if SIZEOF_VOID_P == 8
1610                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1611 #else
1612                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1613 #endif
1614                                 break;
1615                         case STACK_TYPE_I4:
1616 #if SIZEOF_VOID_P == 8
1617                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1618 #endif
1619                                 break;
1620                         case STACK_TYPE_O:
1621                                 break;
1622                         case STACK_TYPE_MP:
1623                                 break;
1624                         case STACK_TYPE_I8:
1625 #if SIZEOF_VOID_P == 4
1626                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1627 #endif
1628                                 break;
1629                         default:
1630                                 g_assert_not_reached ();
1631                         }
1632                         ++td.ip;
1633                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1634                         break;
1635                 case CEE_CONV_U4:
1636                         CHECK_STACK (&td, 1);
1637                         switch (td.sp [-1].type) {
1638                         case STACK_TYPE_R8:
1639                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1640                                 break;
1641                         case STACK_TYPE_I4:
1642                                 break;
1643                         case STACK_TYPE_I8:
1644                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1645                                 break;
1646                         case STACK_TYPE_MP:
1647 #if SIZEOF_VOID_P == 8
1648                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1649 #endif
1650                                 break;
1651                         default:
1652                                 g_assert_not_reached ();
1653                         }
1654                         ++td.ip;
1655                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1656                         break;
1657                 case CEE_CONV_I4:
1658                         CHECK_STACK (&td, 1);
1659                         switch (td.sp [-1].type) {
1660                         case STACK_TYPE_R8:
1661                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1662                                 break;
1663                         case STACK_TYPE_I4:
1664                                 break;
1665                         case STACK_TYPE_I8:
1666                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1667                                 break;
1668                         case STACK_TYPE_MP:
1669 #if SIZEOF_VOID_P == 8
1670                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1671 #endif
1672                                 break;
1673                         default:
1674                                 g_assert_not_reached ();
1675                         }
1676                         ++td.ip;
1677                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1678                         break;
1679                 case CEE_CONV_I8:
1680                         CHECK_STACK (&td, 1);
1681                         switch (td.sp [-1].type) {
1682                         case STACK_TYPE_R8:
1683                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1684                                 break;
1685                         case STACK_TYPE_I4:
1686                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1687                                 break;
1688                         case STACK_TYPE_I8:
1689                                 break;
1690                         case STACK_TYPE_MP:
1691 #if SIZEOF_VOID_P == 4
1692                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1693 #endif
1694                                 break;
1695                         default:
1696                                 g_assert_not_reached ();
1697                         }
1698                         ++td.ip;
1699                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1700                         break;
1701                 case CEE_CONV_R4:
1702                         CHECK_STACK (&td, 1);
1703                         switch (td.sp [-1].type) {
1704                         case STACK_TYPE_R8:
1705                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1706                                 break;
1707                         case STACK_TYPE_I8:
1708                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1709                                 break;
1710                         case STACK_TYPE_I4:
1711                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1712                                 break;
1713                         default:
1714                                 g_assert_not_reached ();
1715                         }
1716                         ++td.ip;
1717                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1718                         break;
1719                 case CEE_CONV_R8:
1720                         CHECK_STACK (&td, 1);
1721                         switch (td.sp [-1].type) {
1722                         case STACK_TYPE_I4:
1723                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1724                                 break;
1725                         case STACK_TYPE_I8:
1726                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1727                                 break;
1728                         case STACK_TYPE_R8:
1729                                 break;
1730                         default:
1731                                 g_assert_not_reached ();
1732                         }
1733                         ++td.ip;
1734                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1735                         break;
1736                 case CEE_CONV_U8:
1737                         CHECK_STACK (&td, 1);
1738                         switch (td.sp [-1].type) {
1739                         case STACK_TYPE_I4:
1740                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1741                                 break;
1742                         case STACK_TYPE_I8:
1743                                 break;
1744                         case STACK_TYPE_R8:
1745                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1746                                 break;
1747                         case STACK_TYPE_MP:
1748 #if SIZEOF_VOID_P == 4
1749                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1750 #endif
1751                                 break;
1752                         default:
1753                                 g_assert_not_reached ();
1754                         }
1755                         ++td.ip;
1756                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1757                         break;
1758 #if 0
1759                 case CEE_CPOBJ: {
1760                         MonoClass *vtklass;
1761                         ++ip;
1762                         vtklass = mono_class_get_full (image, read32 (ip), generic_context);
1763                         ip += 4;
1764                         sp -= 2;
1765                         memcpy (sp [0].data.p, sp [1].data.p, mono_class_value_size (vtklass, NULL));
1766                         break;
1767                 }
1768 #endif
1769                 case CEE_LDOBJ: {
1770                         int size;
1771                         CHECK_STACK (&td, 1);
1772
1773                         token = read32 (td.ip + 1);
1774
1775                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1776                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1777                         else
1778                                 klass = mono_class_get_full (image, token, generic_context);
1779
1780                         ADD_CODE(&td, MINT_LDOBJ);
1781                         ADD_CODE(&td, get_data_item_index(&td, klass));
1782                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1783                                 size = mono_class_value_size (klass, NULL);
1784                                 PUSH_VT(&td, size);
1785                         }
1786                         td.ip += 5;
1787                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1788                         break;
1789                 }
1790                 case CEE_LDSTR: {
1791                         MonoString *s;
1792                         token = mono_metadata_token_index (read32 (td.ip + 1));
1793                         td.ip += 5;
1794                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1795                                 s = mono_string_new_wrapper(
1796                                         mono_method_get_wrapper_data (method, token));
1797                         }
1798                         else
1799                                 s = mono_ldstr (domain, image, token);
1800                         ADD_CODE(&td, MINT_LDSTR);
1801                         ADD_CODE(&td, get_data_item_index (&td, s));
1802                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1803                         break;
1804                 }
1805                 case CEE_NEWOBJ: {
1806                         MonoMethod *m;
1807                         MonoMethodSignature *csignature;
1808                         guint32 vt_stack_used = 0;
1809                         guint32 vt_res_size = 0;
1810
1811                         td.ip++;
1812                         token = read32 (td.ip);
1813                         td.ip += 4;
1814
1815                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1816                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1817                         else
1818                                 m = mono_get_method_full (image, token, NULL, generic_context);
1819
1820                         csignature = mono_method_signature (m);
1821                         klass = m->klass;
1822                         td.sp -= csignature->param_count;
1823                         ADD_CODE(&td, MINT_NEWOBJ);
1824                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1825                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1826
1827                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1828                                 vt_res_size = mono_class_value_size (klass, NULL);
1829                                 PUSH_VT (&td, vt_res_size);
1830                         }
1831                         for (i = 0; i < csignature->param_count; ++i) {
1832                                 int mt = mint_type(csignature->params [i]);
1833                                 if (mt == MINT_TYPE_VT) {
1834                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1835                                         gint32 size = mono_class_value_size (k, NULL);
1836                                         size = (size + 7) & ~7;
1837                                         vt_stack_used += size;
1838                                 }
1839                         }
1840                         if (vt_stack_used != 0 || vt_res_size != 0) {
1841                                 ADD_CODE(&td, MINT_VTRESULT);
1842                                 ADD_CODE(&td, vt_res_size);
1843                                 WRITE32(&td, &vt_stack_used);
1844                                 td.vt_sp -= vt_stack_used;
1845                         }
1846                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1847                         break;
1848                 }
1849                 case CEE_CASTCLASS:
1850                         CHECK_STACK (&td, 1);
1851                         token = read32 (td.ip + 1);
1852                         klass = mono_class_get_full (image, token, generic_context);
1853                         ADD_CODE(&td, MINT_CASTCLASS);
1854                         ADD_CODE(&td, get_data_item_index (&td, klass));
1855                         td.sp [-1].klass = klass;
1856                         td.ip += 5;
1857                         break;
1858                 case CEE_ISINST:
1859                         CHECK_STACK (&td, 1);
1860                         token = read32 (td.ip + 1);
1861                         klass = mono_class_get_full (image, token, generic_context);
1862                         ADD_CODE(&td, MINT_ISINST);
1863                         ADD_CODE(&td, get_data_item_index (&td, klass));
1864                         td.ip += 5;
1865                         break;
1866                 case CEE_CONV_R_UN:
1867                         switch (td.sp [-1].type) {
1868                         case STACK_TYPE_R8:
1869                                 break;
1870                         case STACK_TYPE_I8:
1871                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1872                                 break;
1873                         case STACK_TYPE_I4:
1874                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1875                                 break;
1876                         default:
1877                                 g_assert_not_reached ();
1878                         }
1879                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1880                         ++td.ip;
1881                         break;
1882                 case CEE_UNBOX:
1883                         CHECK_STACK (&td, 1);
1884                         token = read32 (td.ip + 1);
1885
1886                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1887                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1888                         else
1889                                 klass = mono_class_get_full (image, token, generic_context);
1890
1891                         if (mono_class_is_nullable (klass)) {
1892                                 g_error ("cee_unbox: implement Nullable");
1893                         }
1894
1895                         ADD_CODE(&td, MINT_UNBOX);
1896                         ADD_CODE(&td, get_data_item_index (&td, klass));
1897                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1898                         td.ip += 5;
1899                         break;
1900                 case CEE_UNBOX_ANY:
1901                         CHECK_STACK (&td, 1);
1902                         token = read32 (td.ip + 1);
1903
1904                         g_assert (method->wrapper_type == MONO_WRAPPER_NONE);
1905                         klass = mono_class_get_full (image, token, generic_context);
1906
1907                         if (mini_type_is_reference (&klass->byval_arg)) {
1908                                 g_error ("unbox_any: generic class is reference type");
1909                         } else if (mono_class_is_nullable (klass)) {
1910                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
1911                                 /* td.ip is incremented by interp_transform_call */
1912                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL);
1913                         } else {
1914                                 int mt = mint_type (&klass->byval_arg);
1915                                 ADD_CODE (&td, MINT_UNBOX);
1916                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1917                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1918                                 if (mt == MINT_TYPE_VT) {
1919                                         int size = mono_class_value_size (klass, NULL);
1920                                         PUSH_VT (&td, size);
1921                                 }
1922                                 td.ip += 5;
1923                         }
1924
1925                         break;
1926                 case CEE_THROW:
1927                         CHECK_STACK (&td, 1);
1928                         SIMPLE_OP (td, MINT_THROW);
1929                         --td.sp;
1930                         generating_code = 0;
1931                         break;
1932                 case CEE_LDFLDA:
1933                         CHECK_STACK (&td, 1);
1934                         token = read32 (td.ip + 1);
1935                         field = mono_field_from_token (image, token, &klass, generic_context);
1936                         mono_class_init (klass);
1937                         mt = mint_type(field->type);
1938                         ADD_CODE(&td, MINT_LDFLDA);
1939                         ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
1940                         td.ip += 5;
1941                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1942                         break;
1943                 case CEE_LDFLD: {
1944                         CHECK_STACK (&td, 1);
1945                         token = read32 (td.ip + 1);
1946                         field = mono_field_from_token (image, token, &klass, generic_context);
1947                         mono_class_init (klass);
1948
1949                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
1950                         mt = mint_type (&field_klass->byval_arg);
1951                         if (klass->marshalbyref) {
1952                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
1953                                 ADD_CODE(&td, get_data_item_index (&td, field));
1954                         } else  {
1955                                 ADD_CODE(&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
1956                                 ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
1957                         }
1958                         if (mt == MINT_TYPE_VT) {
1959                                 int size = mono_class_value_size (field_klass, NULL);
1960                                 PUSH_VT(&td, size);
1961                                 WRITE32(&td, &size);
1962                         }
1963                         if (td.sp [-1].type == STACK_TYPE_VT) {
1964                                 int size = mono_class_value_size (klass, NULL);
1965                                 size = (size + 7) & ~7;
1966                                 td.vt_sp -= size;
1967                                 ADD_CODE (&td, MINT_VTRESULT);
1968                                 ADD_CODE (&td, 0);
1969                                 WRITE32 (&td, &size);
1970                         }
1971                         td.ip += 5;
1972                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
1973                         break;
1974                 }
1975                 case CEE_STFLD:
1976                         CHECK_STACK (&td, 2);
1977                         token = read32 (td.ip + 1);
1978                         field = mono_field_from_token (image, token, &klass, generic_context);
1979                         mono_class_init (klass);
1980                         mt = mint_type(field->type);
1981                         if (klass->marshalbyref) {
1982                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
1983                                 ADD_CODE(&td, get_data_item_index (&td, field));
1984                         } else  {
1985                                 ADD_CODE(&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
1986                                 ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
1987                         }
1988                         if (mt == MINT_TYPE_VT) {
1989                                 MonoClass *klass = mono_class_from_mono_type (field->type);
1990                                 int size = mono_class_value_size (klass, NULL);
1991                                 POP_VT(&td, size);
1992                                 WRITE32(&td, &size);
1993                         }
1994                         td.ip += 5;
1995                         td.sp -= 2;
1996                         break;
1997                 case CEE_LDSFLDA:
1998                         token = read32 (td.ip + 1);
1999                         field = mono_field_from_token (image, token, &klass, generic_context);
2000                         ADD_CODE(&td, MINT_LDSFLDA);
2001                         ADD_CODE(&td, get_data_item_index (&td, field));
2002                         td.ip += 5;
2003                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2004                         break;
2005                 case CEE_LDSFLD:
2006                         token = read32 (td.ip + 1);
2007                         field = mono_field_from_token (image, token, &klass, generic_context);
2008                         mt = mint_type(field->type);
2009                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2010                         ADD_CODE(&td, get_data_item_index (&td, field));
2011                         klass = NULL;
2012                         if (mt == MINT_TYPE_VT) {
2013                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2014                                 int size = mono_class_value_size (klass, NULL);
2015                                 PUSH_VT(&td, size);
2016                                 WRITE32(&td, &size);
2017                                 klass = field->type->data.klass;
2018                         } else {
2019                                 if (mt == MINT_TYPE_O)
2020                                         klass = mono_class_from_mono_type (field->type);
2021                         }
2022                         td.ip += 5;
2023                         PUSH_TYPE(&td, stack_type [mt], klass);
2024                         break;
2025                 case CEE_STSFLD:
2026                         CHECK_STACK (&td, 1);
2027                         token = read32 (td.ip + 1);
2028                         field = mono_field_from_token (image, token, &klass, generic_context);
2029                         mt = mint_type(field->type);
2030                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2031                         ADD_CODE(&td, get_data_item_index (&td, field));
2032                         if (mt == MINT_TYPE_VT) {
2033                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2034                                 int size = mono_class_value_size (klass, NULL);
2035                                 POP_VT (&td, size);
2036                                 WRITE32 (&td, &size);
2037                         }
2038                         td.ip += 5;
2039                         --td.sp;
2040                         break;
2041                 case CEE_STOBJ: {
2042                         int size;
2043                         token = read32 (td.ip + 1);
2044
2045                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2046                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2047                         else
2048                                 klass = mono_class_get_full (image, token, generic_context);
2049
2050                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2051                         ADD_CODE(&td, get_data_item_index (&td, klass));
2052                         if (td.sp [-1].type == STACK_TYPE_VT) {
2053                                 size = mono_class_value_size (klass, NULL);
2054                                 size = (size + 7) & ~7;
2055                                 td.vt_sp -= size;
2056                         }
2057                         td.ip += 5;
2058                         td.sp -= 2;
2059                         break;
2060                 }
2061                 case CEE_CONV_OVF_I_UN:
2062                         CHECK_STACK (&td, 1);
2063                         switch (td.sp [-1].type) {
2064                         case STACK_TYPE_R8:
2065 #if SIZEOF_VOID_P == 8
2066                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2067 #else
2068                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2069 #endif
2070                                 break;
2071                         case STACK_TYPE_I8:
2072                                 /*FIX*/
2073                                 break;
2074                         case STACK_TYPE_I4:
2075 #if SIZEOF_VOID_P == 8
2076                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2077 #endif
2078                                 break;
2079                         default:
2080                                 g_assert_not_reached ();
2081                                 break;
2082                         }
2083                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2084                         ++td.ip;
2085                         break;
2086                 case CEE_CONV_OVF_I8_UN:
2087                         CHECK_STACK (&td, 1);
2088                         switch (td.sp [-1].type) {
2089                         case STACK_TYPE_R8:
2090                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2091                                 break;
2092                         case STACK_TYPE_I8:
2093                                 break;
2094                         case STACK_TYPE_I4:
2095                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2096                                 break;
2097                         default:
2098                                 g_assert_not_reached ();
2099                                 break;
2100                         }
2101                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2102                         ++td.ip;
2103                         break;
2104                 case CEE_BOX: {
2105                         int size;
2106                         CHECK_STACK (&td, 1);
2107                         token = read32 (td.ip + 1);
2108                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2109                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2110                         else
2111                                 klass = mono_class_get_full (image, token, generic_context);
2112
2113                         if (mono_class_is_nullable (klass)) {
2114                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2115                                 /* td.ip is incremented by interp_transform_call */
2116                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL);
2117                         } else if (!klass->valuetype) {
2118                                 /* already boxed, do nothing. */
2119                                 td.ip += 5;
2120                         } else {
2121                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2122                                         size = mono_class_value_size (klass, NULL);
2123                                         size = (size + 7) & ~7;
2124                                         td.vt_sp -= size;
2125                                 }
2126                                 ADD_CODE(&td, MINT_BOX);
2127                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2128                                 ADD_CODE (&td, 0);
2129                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2130                                 td.ip += 5;
2131                         }
2132
2133                         break;
2134                 }
2135                 case CEE_NEWARR:
2136                         CHECK_STACK (&td, 1);
2137                         token = read32 (td.ip + 1);
2138
2139                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2140                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2141                         else
2142                                 klass = mono_class_get_full (image, token, generic_context);
2143
2144                         ADD_CODE(&td, MINT_NEWARR);
2145                         ADD_CODE(&td, get_data_item_index (&td, klass));
2146                         SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2147                         td.ip += 5;
2148                         break;
2149                 case CEE_LDLEN:
2150                         CHECK_STACK (&td, 1);
2151                         SIMPLE_OP (td, MINT_LDLEN);
2152                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2153                         break;
2154                 case CEE_LDELEMA:
2155                         CHECK_STACK (&td, 2);
2156                         ENSURE_I4 (&td, 1);
2157                         token = read32 (td.ip + 1);
2158
2159                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2160                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2161                         else
2162                                 klass = mono_class_get_full (image, token, generic_context);
2163
2164                         ADD_CODE(&td, MINT_LDELEMA);
2165                         ADD_CODE(&td, get_data_item_index (&td, klass));
2166                         td.ip += 5;
2167                         --td.sp;
2168                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2169                         break;
2170                 case CEE_LDELEM_I1:
2171                         CHECK_STACK (&td, 2);
2172                         ENSURE_I4 (&td, 1);
2173                         SIMPLE_OP (td, MINT_LDELEM_I1);
2174                         --td.sp;
2175                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2176                         break;
2177                 case CEE_LDELEM_U1:
2178                         CHECK_STACK (&td, 2);
2179                         ENSURE_I4 (&td, 1);
2180                         SIMPLE_OP (td, MINT_LDELEM_U1);
2181                         --td.sp;
2182                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2183                         break;
2184                 case CEE_LDELEM_I2:
2185                         CHECK_STACK (&td, 2);
2186                         ENSURE_I4 (&td, 1);
2187                         SIMPLE_OP (td, MINT_LDELEM_I2);
2188                         --td.sp;
2189                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2190                         break;
2191                 case CEE_LDELEM_U2:
2192                         CHECK_STACK (&td, 2);
2193                         ENSURE_I4 (&td, 1);
2194                         SIMPLE_OP (td, MINT_LDELEM_U2);
2195                         --td.sp;
2196                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2197                         break;
2198                 case CEE_LDELEM_I4:
2199                         CHECK_STACK (&td, 2);
2200                         ENSURE_I4 (&td, 1);
2201                         SIMPLE_OP (td, MINT_LDELEM_I4);
2202                         --td.sp;
2203                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2204                         break;
2205                 case CEE_LDELEM_U4:
2206                         CHECK_STACK (&td, 2);
2207                         ENSURE_I4 (&td, 1);
2208                         SIMPLE_OP (td, MINT_LDELEM_U4);
2209                         --td.sp;
2210                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2211                         break;
2212                 case CEE_LDELEM_I8:
2213                         CHECK_STACK (&td, 2);
2214                         ENSURE_I4 (&td, 1);
2215                         SIMPLE_OP (td, MINT_LDELEM_I8);
2216                         --td.sp;
2217                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2218                         break;
2219                 case CEE_LDELEM_I:
2220                         CHECK_STACK (&td, 2);
2221                         ENSURE_I4 (&td, 1);
2222                         SIMPLE_OP (td, MINT_LDELEM_I);
2223                         --td.sp;
2224                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2225                         break;
2226                 case CEE_LDELEM_R4:
2227                         CHECK_STACK (&td, 2);
2228                         ENSURE_I4 (&td, 1);
2229                         SIMPLE_OP (td, MINT_LDELEM_R4);
2230                         --td.sp;
2231                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2232                         break;
2233                 case CEE_LDELEM_R8:
2234                         CHECK_STACK (&td, 2);
2235                         ENSURE_I4 (&td, 1);
2236                         SIMPLE_OP (td, MINT_LDELEM_R8);
2237                         --td.sp;
2238                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2239                         break;
2240                 case CEE_LDELEM_REF:
2241                         CHECK_STACK (&td, 2);
2242                         ENSURE_I4 (&td, 1);
2243                         SIMPLE_OP (td, MINT_LDELEM_REF);
2244                         --td.sp;
2245                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2246                         break;
2247                 case CEE_LDELEM:
2248                         CHECK_STACK (&td, 2);
2249                         token = read32 (td.ip + 1);
2250                         klass = mono_class_get_full (image, token, generic_context);
2251                         switch (mint_type (&klass->byval_arg)) {
2252                                 case MINT_TYPE_I4:
2253                                         ENSURE_I4 (&td, 1);
2254                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2255                                         --td.sp;
2256                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2257                                         break;
2258                                 case MINT_TYPE_VT: {
2259                                         int size = mono_class_value_size (klass, NULL);
2260                                         ENSURE_I4 (&td, 1);
2261                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2262                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2263                                         WRITE32 (&td, &size);
2264                                         --td.sp;
2265                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2266                                         PUSH_VT (&td, size);
2267                                         break;
2268                                 }
2269                                 default: {
2270                                         GString *res = g_string_new ("");
2271                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2272                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2273                                         g_string_free (res, TRUE);
2274                                         g_assert (0);
2275                                         break;
2276                                 }
2277                         }
2278                         td.ip += 4;
2279                         break;
2280                 case CEE_STELEM_I:
2281                         CHECK_STACK (&td, 3);
2282                         ENSURE_I4 (&td, 2);
2283                         SIMPLE_OP (td, MINT_STELEM_I);
2284                         td.sp -= 3;
2285                         break;
2286                 case CEE_STELEM_I1:
2287                         CHECK_STACK (&td, 3);
2288                         ENSURE_I4 (&td, 2);
2289                         SIMPLE_OP (td, MINT_STELEM_I1);
2290                         td.sp -= 3;
2291                         break;
2292                 case CEE_STELEM_I2:
2293                         CHECK_STACK (&td, 3);
2294                         ENSURE_I4 (&td, 2);
2295                         SIMPLE_OP (td, MINT_STELEM_I2);
2296                         td.sp -= 3;
2297                         break;
2298                 case CEE_STELEM_I4:
2299                         CHECK_STACK (&td, 3);
2300                         ENSURE_I4 (&td, 2);
2301                         SIMPLE_OP (td, MINT_STELEM_I4);
2302                         td.sp -= 3;
2303                         break;
2304                 case CEE_STELEM_I8:
2305                         CHECK_STACK (&td, 3);
2306                         ENSURE_I4 (&td, 2);
2307                         SIMPLE_OP (td, MINT_STELEM_I8);
2308                         td.sp -= 3;
2309                         break;
2310                 case CEE_STELEM_R4:
2311                         CHECK_STACK (&td, 3);
2312                         ENSURE_I4 (&td, 2);
2313                         SIMPLE_OP (td, MINT_STELEM_R4);
2314                         td.sp -= 3;
2315                         break;
2316                 case CEE_STELEM_R8:
2317                         CHECK_STACK (&td, 3);
2318                         ENSURE_I4 (&td, 2);
2319                         SIMPLE_OP (td, MINT_STELEM_R8);
2320                         td.sp -= 3;
2321                         break;
2322                 case CEE_STELEM_REF:
2323                         CHECK_STACK (&td, 3);
2324                         ENSURE_I4 (&td, 2);
2325                         SIMPLE_OP (td, MINT_STELEM_REF);
2326                         td.sp -= 3;
2327                         break;
2328                 case CEE_STELEM:
2329                         CHECK_STACK (&td, 3);
2330                         ENSURE_I4 (&td, 2);
2331                         token = read32 (td.ip + 1);
2332                         klass = mono_class_get_full (image, token, generic_context);
2333                         switch (mint_type (&klass->byval_arg)) {
2334                                 case MINT_TYPE_I4:
2335                                         SIMPLE_OP (td, MINT_STELEM_I4);
2336                                         break;
2337                                 case MINT_TYPE_O:
2338                                         SIMPLE_OP (td, MINT_STELEM_REF);
2339                                         break;
2340                                 case MINT_TYPE_VT: {
2341                                         int size = mono_class_value_size (klass, NULL);
2342                                         SIMPLE_OP (td, MINT_STELEM_VT);
2343                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2344                                         WRITE32 (&td, &size);
2345                                         POP_VT (&td, size);
2346                                         break;
2347                                 }
2348                                 default: {
2349                                         GString *res = g_string_new ("");
2350                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2351                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2352                                         g_string_free (res, TRUE);
2353                                         g_assert (0);
2354                                         break;
2355                                 }
2356                         }
2357                         td.ip += 4;
2358                         td.sp -= 3;
2359                         break;
2360 #if 0
2361                 case CEE_CONV_OVF_U1:
2362
2363                 case CEE_CONV_OVF_I8:
2364
2365 #if SIZEOF_VOID_P == 8
2366                 case CEE_CONV_OVF_U:
2367 #endif
2368                 case CEE_REFANYVAL: ves_abort(); break;
2369 #endif
2370                 case CEE_CKFINITE:
2371                         CHECK_STACK (&td, 1);
2372                         SIMPLE_OP (td, MINT_CKFINITE);
2373                         break;
2374                 case CEE_CONV_OVF_I1:
2375                 case CEE_CONV_OVF_I1_UN:
2376                         CHECK_STACK (&td, 1);
2377                         switch (td.sp [-1].type) {
2378                         case STACK_TYPE_R8:
2379                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2380                                 break;
2381                         case STACK_TYPE_I4:
2382                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2383                                 break;
2384                         case STACK_TYPE_I8:
2385                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2386                                 break;
2387                         default:
2388                                 g_assert_not_reached ();
2389                         }
2390                         ++td.ip;
2391                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2392                         break;
2393                 case CEE_CONV_OVF_U1:
2394                 case CEE_CONV_OVF_U1_UN:
2395                         CHECK_STACK (&td, 1);
2396                         switch (td.sp [-1].type) {
2397                         case STACK_TYPE_R8:
2398                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2399                                 break;
2400                         case STACK_TYPE_I4:
2401                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2402                                 break;
2403                         case STACK_TYPE_I8:
2404                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2405                                 break;
2406                         default:
2407                                 g_assert_not_reached ();
2408                         }
2409                         ++td.ip;
2410                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2411                         break;
2412                 case CEE_CONV_OVF_I2:
2413                 case CEE_CONV_OVF_I2_UN:
2414                         CHECK_STACK (&td, 1);
2415                         switch (td.sp [-1].type) {
2416                         case STACK_TYPE_R8:
2417                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2418                                 break;
2419                         case STACK_TYPE_I4:
2420                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2421                                 break;
2422                         case STACK_TYPE_I8:
2423                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2424                                 break;
2425                         default:
2426                                 g_assert_not_reached ();
2427                         }
2428                         ++td.ip;
2429                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2430                         break;
2431                 case CEE_CONV_OVF_U2_UN:
2432                 case CEE_CONV_OVF_U2:
2433                         CHECK_STACK (&td, 1);
2434                         switch (td.sp [-1].type) {
2435                         case STACK_TYPE_R8:
2436                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2437                                 break;
2438                         case STACK_TYPE_I4:
2439                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2440                                 break;
2441                         case STACK_TYPE_I8:
2442                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2443                                 break;
2444                         default:
2445                                 g_assert_not_reached ();
2446                         }
2447                         ++td.ip;
2448                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2449                         break;
2450 #if SIZEOF_VOID_P == 4
2451                 case CEE_CONV_OVF_I:
2452 #endif
2453                 case CEE_CONV_OVF_I4:
2454                 case CEE_CONV_OVF_I4_UN:
2455                         CHECK_STACK (&td, 1);
2456                         switch (td.sp [-1].type) {
2457                         case STACK_TYPE_R8:
2458                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2459                                 break;
2460                         case STACK_TYPE_I4:
2461                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2462                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2463                                 break;
2464                         case STACK_TYPE_I8:
2465                                 ADD_CODE(&td, MINT_CONV_OVF_I4_I8);
2466                                 break;
2467                         default:
2468                                 g_assert_not_reached ();
2469                         }
2470                         ++td.ip;
2471                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2472                         break;
2473 #if SIZEOF_VOID_P == 4
2474                 case CEE_CONV_OVF_U:
2475 #endif
2476                 case CEE_CONV_OVF_U4:
2477                 case CEE_CONV_OVF_U4_UN:
2478                         CHECK_STACK (&td, 1);
2479                         switch (td.sp [-1].type) {
2480                         case STACK_TYPE_R8:
2481                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2482                                 break;
2483                         case STACK_TYPE_I4:
2484                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2485                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2486                                 break;
2487                         case STACK_TYPE_I8:
2488                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2489                                 break;
2490                         default:
2491                                 g_assert_not_reached ();
2492                         }
2493                         ++td.ip;
2494                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2495                         break;
2496 #if SIZEOF_VOID_P == 8
2497                 case CEE_CONV_OVF_I:
2498 #endif
2499                 case CEE_CONV_OVF_I8:
2500                         CHECK_STACK (&td, 1);
2501                         switch (td.sp [-1].type) {
2502                         case STACK_TYPE_R8:
2503                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2504                                 break;
2505                         case STACK_TYPE_I4:
2506                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2507                                 break;
2508                         case STACK_TYPE_I8:
2509                                 break;
2510                         default:
2511                                 g_assert_not_reached ();
2512                         }
2513                         ++td.ip;
2514                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2515                         break;
2516 #if SIZEOF_VOID_P == 8
2517                 case CEE_CONV_OVF_U:
2518 #endif
2519                 case CEE_CONV_OVF_U8:
2520                         CHECK_STACK (&td, 1);
2521                         switch (td.sp [-1].type) {
2522                         case STACK_TYPE_R8:
2523                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2524                                 break;
2525                         case STACK_TYPE_I4:
2526                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2527                                 break;
2528                         case STACK_TYPE_I8:
2529                                 break;
2530                         default:
2531                                 g_assert_not_reached ();
2532                         }
2533                         ++td.ip;
2534                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2535                         break;
2536                 case CEE_LDTOKEN: {
2537                         int size;
2538                         gpointer handle;
2539                         token = read32 (td.ip + 1);
2540                         handle = mono_ldtoken (image, token, &klass, generic_context);
2541                         mt = mint_type(&klass->byval_arg);
2542                         g_assert (mt == MINT_TYPE_VT);
2543                         size = mono_class_value_size (klass, NULL);
2544                         g_assert (size == sizeof(gpointer));
2545                         PUSH_VT(&td, sizeof(gpointer));
2546                         ADD_CODE(&td, MINT_LDTOKEN);
2547                         ADD_CODE(&td, get_data_item_index (&td, handle));
2548                         PUSH_SIMPLE_TYPE(&td, stack_type [mt]);
2549                         td.ip += 5;
2550                         break;
2551                 }
2552                 case CEE_ADD_OVF:
2553                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2554                         ++td.ip;
2555                         break;
2556                 case CEE_ADD_OVF_UN:
2557                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2558                         ++td.ip;
2559                         break;
2560                 case CEE_MUL_OVF:
2561                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2562                         ++td.ip;
2563                         break;
2564                 case CEE_MUL_OVF_UN:
2565                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2566                         ++td.ip;
2567                         break;
2568                 case CEE_SUB_OVF:
2569                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2570                         ++td.ip;
2571                         break;
2572                 case CEE_SUB_OVF_UN:
2573                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2574                         ++td.ip;
2575                         break;
2576                 case CEE_ENDFINALLY:
2577                         SIMPLE_OP (td, MINT_ENDFINALLY);
2578                         generating_code = 0;
2579                         break;
2580                 case CEE_LEAVE:
2581                         td.sp = td.stack;
2582                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2583                         td.ip += 5;
2584                         generating_code = 0;
2585                         break;
2586                 case CEE_LEAVE_S:
2587                         td.sp = td.stack;
2588                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2589                         td.ip += 2;
2590                         generating_code = 0;
2591                         break;
2592                 case CEE_UNUSED41:
2593                         ++td.ip;
2594                         switch (*td.ip) {
2595                                 case CEE_MONO_CALLI_EXTRA_ARG:
2596                                         /* Same as CEE_CALLI, llvm specific */
2597                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL);
2598                                         break;
2599                                 case CEE_MONO_ICALL: {
2600                                         guint32 token;
2601                                         gpointer func;
2602                                         MonoJitICallInfo *info;
2603
2604                                         token = read32 (td.ip + 1);
2605                                         td.ip += 5;
2606                                         func = mono_method_get_wrapper_data (method, token);
2607                                         info = mono_find_jit_icall_by_addr (func);
2608                                         g_assert (info);
2609
2610                                         CHECK_STACK (&td, info->sig->param_count);
2611                                         switch (info->sig->param_count) {
2612                                         case 0:
2613                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2614                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2615                                                 else
2616                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2617                                                 break;
2618                                         case 1:
2619                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2620                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2621                                                 else
2622                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2623                                                 break;
2624                                         case 2:
2625                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2626                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2627                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2628                                                         else
2629                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2630                                                 } else {
2631                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2632                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2633                                                         else
2634                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2635                                                 }
2636                                                 break;
2637                                         case 3:
2638                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2639                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2640                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2641                                                 else
2642                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2643                                                 break;
2644                                         default:
2645                                                 g_assert_not_reached ();
2646                                         }
2647
2648                                         if (func == mono_ftnptr_to_delegate) {
2649                                                 g_error ("TODO: ?");
2650                                                 func = mono_interp_ftnptr_to_delegate;
2651                                         }
2652                                         ADD_CODE(&td, get_data_item_index (&td, func));
2653                                         td.sp -= info->sig->param_count;
2654
2655                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2656                                                 td.sp ++;
2657                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2658                                         }
2659                                         break;
2660                                 }
2661                         case CEE_MONO_VTADDR: {
2662                                 int size;
2663                                 CHECK_STACK (&td, 1);
2664                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2665                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2666                                 else
2667                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2668                                 size = (size + 7) & ~7;
2669                                 ADD_CODE(&td, MINT_VTRESULT);
2670                                 ADD_CODE(&td, 0);
2671                                 WRITE32(&td, &size);
2672                                 td.vt_sp -= size;
2673                                 ++td.ip;
2674                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2675                                 break;
2676                         }
2677                         case CEE_MONO_LDPTR:
2678                         case CEE_MONO_CLASSCONST:
2679                                 token = read32 (td.ip + 1);
2680                                 td.ip += 5;
2681                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2682                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2683                                 td.sp [0].type = STACK_TYPE_I;
2684                                 ++td.sp;
2685                                 break;
2686                         case CEE_MONO_OBJADDR:
2687                                 CHECK_STACK (&td, 1);
2688                                 ++td.ip;
2689                                 td.sp[-1].type = STACK_TYPE_MP;
2690                                 /* do nothing? */
2691                                 break;
2692                         case CEE_MONO_NEWOBJ:
2693                                 token = read32 (td.ip + 1);
2694                                 td.ip += 5;
2695                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2696                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2697                                 td.sp [0].type = STACK_TYPE_O;
2698                                 ++td.sp;
2699                                 break;
2700                         case CEE_MONO_RETOBJ:
2701                                 CHECK_STACK (&td, 1);
2702                                 token = read32 (td.ip + 1);
2703                                 td.ip += 5;
2704                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2705                                 td.sp--;
2706
2707                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2708
2709                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2710
2711                                 if (td.sp > td.stack)
2712                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2713                                 break;
2714                         case CEE_MONO_LDNATIVEOBJ:
2715                                 token = read32 (td.ip + 1);
2716                                 td.ip += 5;
2717                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2718                                 g_assert(klass->valuetype);
2719                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2720                                 break;
2721                         case CEE_MONO_SAVE_LMF:
2722                         case CEE_MONO_RESTORE_LMF:
2723                         case CEE_MONO_NOT_TAKEN:
2724                                 ++td.ip;
2725                                 break;
2726                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
2727                                 ADD_CODE (&td, MINT_MONO_LDPTR);
2728                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
2729                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
2730                                 ++td.ip;
2731                                 break;
2732                         default:
2733                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2734                         }
2735                         break;
2736 #if 0
2737                 case CEE_PREFIX7:
2738                 case CEE_PREFIX6:
2739                 case CEE_PREFIX5:
2740                 case CEE_PREFIX4:
2741                 case CEE_PREFIX3:
2742                 case CEE_PREFIX2:
2743                 case CEE_PREFIXREF: ves_abort(); break;
2744 #endif
2745                 /*
2746                  * Note: Exceptions thrown when executing a prefixed opcode need
2747                  * to take into account the number of prefix bytes (usually the
2748                  * throw point is just (ip - n_prefix_bytes).
2749                  */
2750                 case CEE_PREFIX1:
2751                         ++td.ip;
2752                         switch (*td.ip) {
2753 #if 0
2754                         case CEE_ARGLIST: ves_abort(); break;
2755 #endif
2756                         case CEE_CEQ:
2757                                 CHECK_STACK(&td, 2);
2758                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2759                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2760                                 else
2761                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
2762                                 --td.sp;
2763                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2764                                 ++td.ip;
2765                                 break;
2766                         case CEE_CGT:
2767                                 CHECK_STACK(&td, 2);
2768                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2769                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2770                                 else
2771                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2772                                 --td.sp;
2773                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2774                                 ++td.ip;
2775                                 break;
2776                         case CEE_CGT_UN:
2777                                 CHECK_STACK(&td, 2);
2778                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2779                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2780                                 else
2781                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2782                                 --td.sp;
2783                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2784                                 ++td.ip;
2785                                 break;
2786                         case CEE_CLT:
2787                                 CHECK_STACK(&td, 2);
2788                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2789                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2790                                 else
2791                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2792                                 --td.sp;
2793                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2794                                 ++td.ip;
2795                                 break;
2796                         case CEE_CLT_UN:
2797                                 CHECK_STACK(&td, 2);
2798                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2799                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2800                                 else
2801                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2802                                 --td.sp;
2803                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2804                                 ++td.ip;
2805                                 break;
2806                         case CEE_LDVIRTFTN: /* fallthrough */
2807                         case CEE_LDFTN: {
2808                                 MonoMethod *m;
2809                                 if (*td.ip == CEE_LDVIRTFTN) {
2810                                         CHECK_STACK (&td, 1);
2811                                         --td.sp;
2812                                 }
2813                                 token = read32 (td.ip + 1);
2814                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
2815                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
2816                                 else
2817                                         m = mono_get_method_full (image, token, NULL, generic_context);
2818
2819                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
2820                                         m = mono_marshal_get_synchronized_wrapper (m);
2821
2822                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
2823                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
2824                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2825                                 td.ip += 5;
2826                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
2827                                 break;
2828                         }
2829                         case CEE_LDARG:
2830                                 load_arg (&td, read16 (td.ip + 1));
2831                                 td.ip += 3;
2832                                 break;
2833                         case CEE_LDARGA: {
2834                                 int n = read16 (td.ip + 1);
2835                                 if (n == 0 && signature->hasthis) {
2836                                         g_error ("LDTHISA: NOPE");
2837                                         ADD_CODE(&td, MINT_LDTHISA);
2838                                 }
2839                                 else {
2840                                         ADD_CODE(&td, MINT_LDARGA);
2841                                         ADD_CODE(&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
2842                                 }
2843                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2844                                 td.ip += 3;
2845                                 break;
2846                         }
2847                         case CEE_STARG:
2848                                 store_arg (&td, read16 (td.ip + 1));
2849                                 td.ip += 3;
2850                                 break;
2851                         case CEE_LDLOC:
2852                                 load_local (&td, read16 (td.ip + 1));
2853                                 td.ip += 3;
2854                                 break;
2855                         case CEE_LDLOCA:
2856                                 ADD_CODE(&td, MINT_LDLOCA_S);
2857                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
2858                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2859                                 td.ip += 3;
2860                                 break;
2861                         case CEE_STLOC:
2862                                 store_local (&td, read16 (td.ip + 1));
2863                                 td.ip += 3;
2864                                 break;
2865                         case CEE_LOCALLOC:
2866                                 CHECK_STACK (&td, 1);
2867 #if SIZEOF_VOID_P == 8
2868                                 if (td.sp [-1].type == STACK_TYPE_I8)
2869                                         ADD_CODE(&td, MINT_CONV_I4_I8);
2870 #endif
2871                                 ADD_CODE(&td, MINT_LOCALLOC);
2872                                 if (td.sp != td.stack + 1)
2873                                         g_warning("CEE_LOCALLOC: stack not empty");
2874                                 ++td.ip;
2875                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2876                                 break;
2877 #if 0
2878                         case CEE_UNUSED57: ves_abort(); break;
2879                         case CEE_ENDFILTER: ves_abort(); break;
2880 #endif
2881                         case CEE_UNALIGNED_:
2882                                 ++td.ip;
2883                                 /* FIX: should do something? */;
2884                                 break;
2885                         case CEE_VOLATILE_:
2886                                 ++td.ip;
2887                                 /* FIX: should do something? */;
2888                                 break;
2889                         case CEE_TAIL_:
2890                                 ++td.ip;
2891                                 /* FIX: should do something? */;
2892                                 break;
2893                         case CEE_INITOBJ:
2894                                 CHECK_STACK(&td, 1);
2895                                 token = read32 (td.ip + 1);
2896                                 klass = mono_class_get_full (image, token, generic_context);
2897                                 ADD_CODE(&td, MINT_INITOBJ);
2898                                 i32 = mono_class_value_size (klass, NULL);
2899                                 WRITE32(&td, &i32);
2900                                 td.ip += 5;
2901                                 --td.sp;
2902                                 break;
2903                         case CEE_CPBLK:
2904                                 CHECK_STACK(&td, 3);
2905                                 /* FIX? convert length to I8? */
2906                                 ADD_CODE(&td, MINT_CPBLK);
2907                                 td.sp -= 3;
2908                                 ++td.ip;
2909                                 break;
2910                         case CEE_CONSTRAINED_:
2911                                 token = read32 (td.ip + 1);
2912                                 constrained_class = mono_class_get_full (image, token, generic_context);
2913                                 mono_class_init (constrained_class);
2914                                 td.ip += 5;
2915                                 break;
2916                         case CEE_INITBLK:
2917                                 CHECK_STACK(&td, 3);
2918                                 ADD_CODE(&td, MINT_INITBLK);
2919                                 td.sp -= 3;
2920                                 break;
2921 #if 0
2922                         case CEE_NO_:
2923                                 /* FIXME: implement */
2924                                 ip += 2;
2925                                 break;
2926 #endif
2927                         case CEE_RETHROW:
2928                                 SIMPLE_OP (td, MINT_RETHROW);
2929                                 generating_code = 0;
2930                                 break;
2931                         case CEE_SIZEOF: {
2932                                 gint32 size;
2933                                 token = read32 (td.ip + 1);
2934                                 td.ip += 5;
2935                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
2936                                         int align;
2937                                         MonoType *type = mono_type_create_from_typespec (image, token);
2938                                         size = mono_type_size (type, &align);
2939                                 } else {
2940                                         guint32 align;
2941                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
2942                                         mono_class_init (szclass);
2943 #if 0
2944                                         if (!szclass->valuetype)
2945                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
2946 #endif
2947                                         size = mono_class_value_size (szclass, &align);
2948                                 }
2949                                 ADD_CODE(&td, MINT_LDC_I4);
2950                                 WRITE32(&td, &size);
2951                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
2952                                 break;
2953                         }
2954 #if 0
2955                         case CEE_REFANYTYPE: ves_abort(); break;
2956 #endif
2957                         default:
2958                                 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);
2959                         }
2960                         break;
2961                 default:
2962                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
2963                 }
2964
2965                 if (td.new_ip - td.new_code != new_in_start_offset)
2966                         td.last_new_ip = td.new_code + new_in_start_offset;
2967                 else if (td.is_bb_start [td.in_start - td.il_code])
2968                         td.is_bb_start [td.ip - td.il_code] = 1;
2969
2970                 td.last_ip = td.in_start;
2971         }
2972
2973         if (mono_interp_traceopt) {
2974                 const guint16 *p = td.new_code;
2975                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
2976                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
2977                 while (p < td.new_ip) {
2978                         p = mono_interp_dis_mintop(td.new_code, p);
2979                         printf("\n");
2980                 }
2981         }
2982
2983         rtm->clauses = mono_mempool_alloc (domain->mp, header->num_clauses * sizeof(MonoExceptionClause));
2984         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
2985         rtm->code = mono_mempool_alloc (domain->mp, (td.new_ip - td.new_code) * sizeof(gushort));
2986         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
2987         g_free (td.new_code);
2988         rtm->new_body_start = rtm->code + body_start_offset;
2989         rtm->num_clauses = header->num_clauses;
2990         for (i = 0; i < header->num_clauses; i++) {
2991                 MonoExceptionClause *c = rtm->clauses + i;
2992                 int end_off = c->try_offset + c->try_len;
2993                 c->try_offset = td.in_offsets [c->try_offset];
2994                 c->try_len = td.in_offsets [end_off] - c->try_offset;
2995                 end_off = c->handler_offset + c->handler_len;
2996                 c->handler_offset = td.in_offsets [c->handler_offset];
2997                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
2998         }
2999         rtm->vt_stack_size = td.max_vt_sp;
3000         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3001         rtm->data_items = mono_mempool_alloc (domain->mp, td.n_data_items * sizeof (td.data_items [0]));
3002         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3003         g_free (td.in_offsets);
3004         g_free (td.forward_refs);
3005         for (i = 0; i < header->code_size; ++i)
3006                 g_free (td.stack_state [i]);
3007         g_free (td.stack_state);
3008         g_free (td.stack_height);
3009         g_free (td.vt_stack_size);
3010         g_free (td.data_items);
3011         g_hash_table_destroy (td.data_hash);
3012 }
3013
3014 static mono_mutex_t calc_section;
3015
3016 void
3017 mono_interp_transform_init (void)
3018 {
3019         mono_os_mutex_init_recursive(&calc_section);
3020 }
3021
3022 MonoException *
3023 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3024 {
3025         int i, align, size, offset;
3026         MonoMethod *method = runtime_method->method;
3027         MonoImage *image = method->klass->image;
3028         MonoMethodHeader *header = mono_method_get_header (method);
3029         MonoMethodSignature *signature = mono_method_signature (method);
3030         register const unsigned char *ip, *end;
3031         const MonoOpcode *opcode;
3032         MonoMethod *m;
3033         MonoClass *class;
3034         MonoDomain *domain = mono_domain_get ();
3035         unsigned char *is_bb_start;
3036         int in;
3037         MonoVTable *method_class_vt;
3038         int backwards;
3039         MonoGenericContext *generic_context = NULL;
3040
3041         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3042         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3043         if (!method_class_vt->initialized) {
3044                 jmp_buf env;
3045                 MonoInvocation *last_env_frame = context->env_frame;
3046                 jmp_buf *old_env = context->current_env;
3047
3048                 if (setjmp(env)) {
3049                         MonoException *failed = context->env_frame->ex;
3050                         context->env_frame->ex = NULL;
3051                         context->env_frame = last_env_frame;
3052                         context->current_env = old_env;
3053                         return failed;
3054                 }
3055                 context->env_frame = context->current_frame;
3056                 context->current_env = &env;
3057                 mono_runtime_class_init (method_class_vt);
3058                 context->env_frame = last_env_frame;
3059                 context->current_env = old_env;
3060         }
3061
3062         mono_profiler_method_jit (method); /* sort of... */
3063
3064         if (mono_method_signature (method)->is_inflated)
3065                 generic_context = &((MonoMethodInflated *) method)->context;
3066
3067         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3068                 MonoMethod *nm = NULL;
3069                 mono_os_mutex_lock(&calc_section);
3070                 if (runtime_method->transformed) {
3071                         mono_os_mutex_unlock(&calc_section);
3072                         g_error ("FIXME: no jit info?");
3073                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3074                         return NULL;
3075                 }
3076
3077                 /* assumes all internal calls with an array this are built in... */
3078                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3079                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3080                         signature = mono_method_signature (nm);
3081                 } else {
3082                         const char *name = method->name;
3083                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3084                                 if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3085                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3086                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3087                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3088                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3089                                         nm = mono_marshal_get_delegate_end_invoke (method);
3090                                 }
3091                         }
3092                         if (nm == NULL) {
3093                                 runtime_method->code = g_malloc(sizeof(short));
3094                                 runtime_method->code[0] = MINT_CALLRUN;
3095                         }
3096                 }
3097                 if (nm == NULL) {
3098                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3099                         runtime_method->alloca_size = runtime_method->stack_size;
3100                         runtime_method->transformed = TRUE;
3101                         mono_os_mutex_unlock(&calc_section);
3102                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3103                         return NULL;
3104                 }
3105                 method = nm;
3106                 header = mono_method_get_header (nm);
3107                 mono_os_mutex_unlock(&calc_section);
3108         }
3109         g_assert ((signature->param_count + signature->hasthis) < 1000);
3110         g_assert (header->max_stack < 10000);
3111         /* intern the strings in the method. */
3112         ip = header->code;
3113         end = ip + header->code_size;
3114
3115         is_bb_start = g_malloc0(header->code_size);
3116         is_bb_start [0] = 1;
3117         while (ip < end) {
3118                 in = *ip;
3119                 if (in == 0xfe) {
3120                         ip++;
3121                         in = *ip + 256;
3122                 }
3123                 else if (in == 0xf0) {
3124                         ip++;
3125                         in = *ip + MONO_CEE_MONO_ICALL;
3126                 }
3127                 opcode = &mono_opcodes [in];
3128                 switch (opcode->argument) {
3129                 case MonoInlineNone:
3130                         ++ip;
3131                         break;
3132                 case MonoInlineString:
3133                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3134                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3135                         ip += 5;
3136                         break;
3137                 case MonoInlineType:
3138                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3139                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
3140                                 mono_class_init (class);
3141                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3142 #if 0
3143                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3144                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3145                                         mono_class_vtable (domain, class);
3146 #endif
3147                         }
3148                         ip += 5;
3149                         break;
3150                 case MonoInlineMethod:
3151                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3152                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3153                                 if (m == NULL) {
3154                                         g_free (is_bb_start);
3155                                         g_error ("FIXME: where to get method and class string?");
3156                                         return NULL;
3157                                         // return mono_get_exception_missing_method ();
3158                                 }
3159                                 mono_class_init (m->klass);
3160                                 if (!mono_class_is_interface (m->klass))
3161                                         mono_class_vtable (domain, m->klass);
3162                         }
3163                         ip += 5;
3164                         break;
3165                 case MonoInlineField:
3166                 case MonoInlineSig:
3167                 case MonoInlineI:
3168                 case MonoInlineTok:
3169                 case MonoShortInlineR:
3170                         ip += 5;
3171                         break;
3172                 case MonoInlineBrTarget:
3173                         offset = read32 (ip + 1);
3174                         ip += 5;
3175                         backwards = offset < 0;
3176                         offset += ip - header->code;
3177                         g_assert (offset >= 0 && offset < header->code_size);
3178                         is_bb_start [offset] |= backwards ? 2 : 1;
3179                         break;
3180                 case MonoShortInlineBrTarget:
3181                         offset = ((gint8 *)ip) [1];
3182                         ip += 2;
3183                         backwards = offset < 0;
3184                         offset += ip - header->code;
3185                         g_assert (offset >= 0 && offset < header->code_size);
3186                         is_bb_start [offset] |= backwards ? 2 : 1;
3187                         break;
3188                 case MonoInlineVar:
3189                         ip += 3;
3190                         break;
3191                 case MonoShortInlineVar:
3192                 case MonoShortInlineI:
3193                         ip += 2;
3194                         break;
3195                 case MonoInlineSwitch: {
3196                         guint32 n;
3197                         const unsigned char *next_ip;
3198                         ++ip;
3199                         n = read32 (ip);
3200                         ip += 4;
3201                         next_ip = ip + 4 * n;
3202                         for (i = 0; i < n; i++) {
3203                                 offset = read32 (ip);
3204                                 backwards = offset < 0;
3205                                 offset += next_ip - header->code;
3206                                 g_assert (offset >= 0 && offset < header->code_size);
3207                                 is_bb_start [offset] |= backwards ? 2 : 1;
3208                                 ip += 4;
3209                         }
3210                         break;
3211                 }
3212                 case MonoInlineR:
3213                 case MonoInlineI8:
3214                         ip += 9;
3215                         break;
3216                 default:
3217                         g_assert_not_reached ();
3218                 }
3219         }
3220         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3221
3222         /* the rest needs to be locked so it is only done once */
3223         mono_os_mutex_lock(&calc_section);
3224         if (runtime_method->transformed) {
3225                 mono_os_mutex_unlock(&calc_section);
3226                 g_free (is_bb_start);
3227                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3228                 return NULL;
3229         }
3230
3231         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3232         runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3233         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3234         offset = 0;
3235         for (i = 0; i < header->num_locals; ++i) {
3236                 size = mono_type_size (header->locals [i], &align);
3237                 offset += align - 1;
3238                 offset &= ~(align - 1);
3239                 runtime_method->local_offsets [i] = offset;
3240                 offset += size;
3241         }
3242         offset = (offset + 7) & ~7;
3243         runtime_method->locals_size = offset;
3244         g_assert (runtime_method->locals_size < 65536);
3245         offset = 0;
3246         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3247
3248         if (signature->hasthis) {
3249                 g_assert (!signature->pinvoke);
3250                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3251                 offset += align - 1;
3252                 offset &= ~(align - 1);
3253                 runtime_method->arg_offsets [0] = offset;
3254                 offset += size;
3255         }
3256
3257         for (i = 0; i < signature->param_count; ++i) {
3258                 if (signature->pinvoke) {
3259                         guint32 dummy;
3260                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3261                         align = 8;
3262                 }
3263                 else
3264                         size = mono_type_stack_size (signature->params [i], &align);
3265                 offset += align - 1;
3266                 offset &= ~(align - 1);
3267                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3268                 offset += size;
3269         }
3270         offset = (offset + 7) & ~7;
3271         runtime_method->args_size = offset;
3272         g_assert (runtime_method->args_size < 10000);
3273
3274         generate(method, runtime_method, is_bb_start);
3275
3276         g_free (is_bb_start);
3277
3278         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3279         runtime_method->transformed = TRUE;
3280         mono_os_mutex_unlock(&calc_section);
3281
3282         return NULL;
3283 }
3284