mono/mini/interp/transform.c

   1 /*
   2  * transform CIL into different opcodes for more
   3  * efficient interpretation
   4  *
   5  * Written by Bernie Solomon (bernard@ugsolutions.com)
   6  * Copyright (c) 2004.
   7  */
   8
   9 #include <string.h>
  10 #include <mono/metadata/appdomain.h>
  11 #include <mono/metadata/debug-helpers.h>
  12 #include <mono/metadata/exception.h>
  13 #include <mono/metadata/mono-endian.h>
  14 #include <mono/metadata/marshal.h>
  15 #include <mono/metadata/profiler-private.h>
  16 #include <mono/metadata/tabledefs.h>
  17
  18 #include <mono/mini/mini.h>
  19
  20 #include "mintops.h"
  21 #include "interp-internals.h"
  22 #include "interp.h"
  23
  24 // TODO: export from marshal.c
  25 MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
  26
  27 #define DEBUG 0
  28
  29 typedef struct
  30 {
  31         MonoClass *klass;
  32         unsigned char type;
  33         unsigned char flags;
  34 } StackInfo;
  35
  36 typedef struct
  37 {
  38         MonoMethod *method;
  39         MonoMethodHeader *header;
  40         RuntimeMethod *rtm;
  41         const unsigned char *il_code;
  42         const unsigned char *ip;
  43         const unsigned char *last_ip;
  44         const unsigned char *in_start;
  45         int code_size;
  46         int *in_offsets;
  47         int *forward_refs;
  48         StackInfo **stack_state;
  49         int *stack_height;
  50         int *vt_stack_size;
  51         unsigned char *is_bb_start;
  52         unsigned short *new_code;
  53         unsigned short *new_code_end;
  54         unsigned short *new_ip;
  55         unsigned short *last_new_ip;
  56         unsigned int max_code_size;
  57         StackInfo *stack;
  58         StackInfo *sp;
  59         unsigned int max_stack_height;
  60         unsigned int vt_sp;
  61         unsigned int max_vt_sp;
  62         int n_data_items;
  63         int max_data_items;
  64         void **data_items;
  65         GHashTable *data_hash;
  66 } TransformData;
  67
  68 #define MINT_TYPE_I1 0
  69 #define MINT_TYPE_U1 1
  70 #define MINT_TYPE_I2 2
  71 #define MINT_TYPE_U2 3
  72 #define MINT_TYPE_I4 4
  73 #define MINT_TYPE_I8 5
  74 #define MINT_TYPE_R4 6
  75 #define MINT_TYPE_R8 7
  76 #define MINT_TYPE_O  8
  77 #define MINT_TYPE_P  9
  78 #define MINT_TYPE_VT 10
  79
  80 #define STACK_TYPE_I4 0
  81 #define STACK_TYPE_I8 1
  82 #define STACK_TYPE_R8 2
  83 #define STACK_TYPE_O  3
  84 #define STACK_TYPE_VT 4
  85 #define STACK_TYPE_MP 5
  86 #define STACK_TYPE_F  6
  87
  88 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
  89
  90 #if SIZEOF_VOID_P == 8
  91 #define STACK_TYPE_I STACK_TYPE_I8
  92 #else
  93 #define STACK_TYPE_I STACK_TYPE_I4
  94 #endif
  95
  96 static int stack_type [] = {
  97         STACK_TYPE_I4, /*I1*/
  98         STACK_TYPE_I4, /*U1*/
  99         STACK_TYPE_I4, /*I2*/
 100         STACK_TYPE_I4, /*U2*/
 101         STACK_TYPE_I4, /*I4*/
 102         STACK_TYPE_I8, /*I8*/
 103         STACK_TYPE_R8, /*R4*/
 104         STACK_TYPE_R8, /*R8*/
 105         STACK_TYPE_O,  /*O*/
 106         STACK_TYPE_MP, /*P*/
 107         STACK_TYPE_VT
 108 };
 109
 110 static void
 111 grow_code (TransformData *td)
 112 {
 113         unsigned int old_ip_offset = td->new_ip - td->new_code;
 114         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 115         g_assert (old_ip_offset <= td->max_code_size);
 116         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 117         td->new_code_end = td->new_code + td->max_code_size;
 118         td->new_ip = td->new_code + old_ip_offset;
 119         td->last_new_ip = td->new_code + old_last_ip_offset;
 120 }
 121
 122 #define ENSURE_CODE(td, n) \
 123         do { \
 124                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 125                         grow_code (td); \
 126         } while (0)
 127
 128 #define ADD_CODE(td, n) \
 129         do { \
 130                 if ((td)->new_ip == (td)->new_code_end) \
 131                         grow_code (td); \
 132                 *(td)->new_ip++ = (n); \
 133         } while (0)
 134
 135 #define CHECK_STACK(td, n) \
 136         do { \
 137                 int stack_size = (td)->sp - (td)->stack; \
 138                 if (stack_size < (n)) \
 139                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 140                                 (td)->method->klass->name, (td)->method->name, \
 141                                 stack_size, n, (td)->ip - (td)->il_code); \
 142         } while (0)
 143
 144 #define ENSURE_I4(td, sp_off) \
 145         do { \
 146                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 147                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 148         } while (0)
 149
 150 static void
 151 handle_branch(TransformData *td, int short_op, int long_op, int offset)
 152 {
 153         int shorten_branch = 0;
 154         int target = td->ip + offset - td->il_code;
 155         if (target < 0 || target >= td->code_size)
 156                 g_assert_not_reached ();
 157         if (offset > 0 && td->stack_height [target] < 0) {
 158                 td->stack_height [target] = td->sp - td->stack;
 159                 if (td->stack_height [target] > 0)
 160                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 161                 td->vt_stack_size [target] = td->vt_sp;
 162         }
 163         if (offset < 0) {
 164                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 165                 if (offset >= -32768) {
 166                         shorten_branch = 1;
 167                 }
 168         } else {
 169                 int prev = td->forward_refs [target];
 170                 td->forward_refs [td->ip - td->il_code] = prev;
 171                 td->forward_refs [target] = td->ip - td->il_code;
 172                 offset = 0;
 173                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 174                         shorten_branch = 1;
 175         }
 176         if (shorten_branch) {
 177                 ADD_CODE(td, short_op);
 178                 ADD_CODE(td, offset);
 179         } else {
 180                 ADD_CODE(td, long_op);
 181                 ADD_CODE(td, * (unsigned short *)(&offset));
 182                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 183         }
 184 }
 185
 186 static void
 187 one_arg_branch(TransformData *td, int mint_op, int offset)
 188 {
 189         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 190         int long_op = mint_op + type - STACK_TYPE_I4;
 191         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 192         CHECK_STACK(td, 1);
 193         --td->sp;
 194         handle_branch (td, short_op, long_op, offset);
 195 }
 196
 197 static void
 198 two_arg_branch(TransformData *td, int mint_op, int offset)
 199 {
 200         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 201         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 202         int long_op = mint_op + type1 - STACK_TYPE_I4;
 203         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 204         CHECK_STACK(td, 2);
 205         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 206                 ADD_CODE(td, MINT_CONV_I8_I4);
 207                 td->in_offsets [td->ip - td->il_code]++;
 208         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 209                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 210                 td->in_offsets [td->ip - td->il_code]++;
 211         } else if (type1 != type2) {
 212                 g_warning("%s.%s: branch type mismatch %d %d",
 213                         td->method->klass->name, td->method->name,
 214                         td->sp [-1].type, td->sp [-2].type);
 215         }
 216         td->sp -= 2;
 217         handle_branch (td, short_op, long_op, offset);
 218 }
 219
 220 static void
 221 unary_arith_op(TransformData *td, int mint_op)
 222 {
 223         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 224         CHECK_STACK(td, 1);
 225         ADD_CODE(td, op);
 226 }
 227
 228 static void
 229 binary_arith_op(TransformData *td, int mint_op)
 230 {
 231         int type1 = td->sp [-2].type;
 232         int type2 = td->sp [-1].type;
 233         int op;
 234 #if SIZEOF_VOID_P == 8
 235         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 236                 ADD_CODE(td, MINT_CONV_I8_I4);
 237                 type2 = STACK_TYPE_I8;
 238         }
 239         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 240                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 241                 type1 = STACK_TYPE_I8;
 242                 td->sp [-2].type = STACK_TYPE_I8;
 243         }
 244 #endif
 245         if (type1 == STACK_TYPE_MP)
 246                 type1 = STACK_TYPE_I;
 247         if (type2 == STACK_TYPE_MP)
 248                 type2 = STACK_TYPE_I;
 249         if (type1 != type2) {
 250                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 251                         td->method->klass->name, td->method->name,
 252                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 253         }
 254         op = mint_op + type1 - STACK_TYPE_I4;
 255         CHECK_STACK(td, 2);
 256         ADD_CODE(td, op);
 257         --td->sp;
 258 }
 259
 260 static void
 261 binary_int_op(TransformData *td, int mint_op)
 262 {
 263         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 264         CHECK_STACK(td, 2);
 265         if (td->sp [-1].type != td->sp [-2].type)
 266                 g_warning("%s.%s: int type mismatch", td->method->klass->name, td->method->name);
 267         ADD_CODE(td, op);
 268         --td->sp;
 269 }
 270
 271 static void
 272 shift_op(TransformData *td, int mint_op)
 273 {
 274         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 275         CHECK_STACK(td, 2);
 276         if (td->sp [-1].type != STACK_TYPE_I4) {
 277                 g_warning("%s.%s: shift type mismatch %d",
 278                         td->method->klass->name, td->method->name,
 279                         td->sp [-2].type);
 280         }
 281         ADD_CODE(td, op);
 282         --td->sp;
 283 }
 284
 285 static int
 286 mint_type(MonoType *type)
 287 {
 288         if (type->byref)
 289                 return MINT_TYPE_P;
 290 enum_type:
 291         switch (type->type) {
 292         case MONO_TYPE_I1:
 293                 return MINT_TYPE_I1;
 294         case MONO_TYPE_U1:
 295         case MONO_TYPE_BOOLEAN:
 296                 return MINT_TYPE_U1;
 297         case MONO_TYPE_I2:
 298                 return MINT_TYPE_I2;
 299         case MONO_TYPE_U2:
 300         case MONO_TYPE_CHAR:
 301                 return MINT_TYPE_U2;
 302         case MONO_TYPE_I4:
 303         case MONO_TYPE_U4:
 304                 return MINT_TYPE_I4;
 305         case MONO_TYPE_I:
 306         case MONO_TYPE_U:
 307 #if SIZEOF_VOID_P == 4
 308                 return MINT_TYPE_I4;
 309 #else
 310                 return MINT_TYPE_I8;
 311 #endif
 312         case MONO_TYPE_PTR:
 313                 return MINT_TYPE_P;
 314         case MONO_TYPE_R4:
 315                 return MINT_TYPE_R4;
 316         case MONO_TYPE_I8:
 317         case MONO_TYPE_U8:
 318                 return MINT_TYPE_I8;
 319         case MONO_TYPE_R8:
 320                 return MINT_TYPE_R8;
 321         case MONO_TYPE_STRING:
 322         case MONO_TYPE_SZARRAY:
 323         case MONO_TYPE_CLASS:
 324         case MONO_TYPE_OBJECT:
 325         case MONO_TYPE_ARRAY:
 326                 return MINT_TYPE_O;
 327         case MONO_TYPE_VALUETYPE:
 328                 if (type->data.klass->enumtype) {
 329                         type = mono_class_enum_basetype (type->data.klass);
 330                         goto enum_type;
 331                 } else
 332                         return MINT_TYPE_VT;
 333         case MONO_TYPE_GENERICINST:
 334                 type = &type->data.generic_class->container_class->byval_arg;
 335                 goto enum_type;
 336         default:
 337                 g_warning ("got type 0x%02x", type->type);
 338                 g_assert_not_reached ();
 339         }
 340         return -1;
 341 }
 342
 343 static int
 344 can_store (int stack_type, int var_type)
 345 {
 346         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 347                 stack_type = STACK_TYPE_I;
 348         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 349                 var_type = STACK_TYPE_I;
 350         return stack_type == var_type;
 351 }
 352
 353 #define SET_SIMPLE_TYPE(s, ty) \
 354         do { \
 355                 (s)->type = (ty); \
 356                 (s)->flags = 0; \
 357                 (s)->klass = NULL; \
 358         } while (0)
 359
 360 #define SET_TYPE(s, ty, k) \
 361         do { \
 362                 (s)->type = (ty); \
 363                 (s)->flags = 0; \
 364                 (s)->klass = k; \
 365         } while (0)
 366
 367 #define PUSH_SIMPLE_TYPE(td, ty) \
 368         do { \
 369                 int sp_height; \
 370                 (td)->sp++; \
 371                 sp_height = (td)->sp - (td)->stack; \
 372                 if (sp_height > (td)->max_stack_height) \
 373                         (td)->max_stack_height = sp_height; \
 374                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 375         } while (0)
 376
 377 #define PUSH_TYPE(td, ty, k) \
 378         do { \
 379                 int sp_height; \
 380                 (td)->sp++; \
 381                 sp_height = (td)->sp - (td)->stack; \
 382                 if (sp_height > (td)->max_stack_height) \
 383                         (td)->max_stack_height = sp_height; \
 384                 SET_TYPE((td)->sp - 1, ty, k); \
 385         } while (0)
 386
 387 #define PUSH_VT(td, size) \
 388         do { \
 389                 (td)->vt_sp += ((size) + 7) & ~7; \
 390                 if ((td)->vt_sp > (td)->max_vt_sp) \
 391                         (td)->max_vt_sp = (td)->vt_sp; \
 392         } while (0)
 393
 394 #define POP_VT(td, size) \
 395         do { \
 396                 (td)->vt_sp -= ((size) + 7) & ~7; \
 397         } while (0)
 398
 399 #if NO_UNALIGNED_ACCESS
 400 #define WRITE32(td, v) \
 401         do { \
 402                 ENSURE_CODE(td, 2); \
 403                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 404                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 405                 (td)->new_ip += 2; \
 406         } while (0)
 407
 408 #define WRITE64(td, v) \
 409         do { \
 410                 ENSURE_CODE(td, 4); \
 411                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 412                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 413                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 414                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 415                 (td)->new_ip += 4; \
 416         } while (0)
 417 #else
 418 #define WRITE32(td, v) \
 419         do { \
 420                 ENSURE_CODE(td, 2); \
 421                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 422                 (td)->new_ip += 2; \
 423         } while (0)
 424
 425 #define WRITE64(td, v) \
 426         do { \
 427                 ENSURE_CODE(td, 4); \
 428                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 429                 (td)->new_ip += 4; \
 430         } while (0)
 431
 432 #endif
 433
 434 static void
 435 load_arg(TransformData *td, int n)
 436 {
 437         int mt;
 438         MonoClass *klass = NULL;
 439         MonoType *type;
 440
 441         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 442         if (hasthis && n == 0)
 443                 type = &td->method->klass->byval_arg;
 444         else
 445                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 446
 447         mt = mint_type (type);
 448         if (mt == MINT_TYPE_VT) {
 449                 gint32 size;
 450                 klass = mono_class_from_mono_type (type);
 451                 if (mono_method_signature (td->method)->pinvoke)
 452                         size = mono_class_native_size (klass, NULL);
 453                 else
 454                         size = mono_class_value_size (klass, NULL);
 455
 456                 if (hasthis && n == 0) {
 457                         mt = MINT_TYPE_P;
 458                         ADD_CODE (td, MINT_LDARG_P);
 459                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 460                         klass = NULL;
 461                 } else {
 462                         PUSH_VT (td, size);
 463                         ADD_CODE (td, MINT_LDARG_VT);
 464                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 465                         WRITE32 (td, &size);
 466                 }
 467         } else {
 468                 if (hasthis && n == 0) {
 469                         mt = MINT_TYPE_P;
 470                         ADD_CODE (td, MINT_LDARG_P);
 471                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 472                         klass = NULL;
 473                 } else {
 474                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 475                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 476                         if (mt == MINT_TYPE_O)
 477                                 klass = mono_class_from_mono_type (type);
 478                 }
 479         }
 480         PUSH_TYPE(td, stack_type[mt], klass);
 481 }
 482
 483 static void
 484 store_arg(TransformData *td, int n)
 485 {
 486         int mt;
 487         CHECK_STACK (td, 1);
 488         MonoType *type;
 489
 490         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 491         if (hasthis && n == 0)
 492                 type = &td->method->klass->byval_arg;
 493         else
 494                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 495
 496         mt = mint_type (type);
 497         if (mt == MINT_TYPE_VT) {
 498                 gint32 size;
 499                 g_error ("data.klass");
 500                 if (mono_method_signature (td->method)->pinvoke)
 501                         size = mono_class_native_size (type->data.klass, NULL);
 502                 else
 503                         size = mono_class_value_size (type->data.klass, NULL);
 504                 ADD_CODE(td, MINT_STARG_VT);
 505                 ADD_CODE(td, n);
 506                 WRITE32(td, &size);
 507                 if (td->sp [-1].type == STACK_TYPE_VT)
 508                         POP_VT(td, size);
 509         } else {
 510                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 511                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 512         }
 513         --td->sp;
 514 }
 515
 516 static void
 517 store_inarg(TransformData *td, int n)
 518 {
 519         MonoType *type;
 520         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 521         if (hasthis && n == 0)
 522                 type = &td->method->klass->byval_arg;
 523         else
 524                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 525
 526         int mt = mint_type (type);
 527         if (hasthis && n == 0) {
 528                 ADD_CODE (td, MINT_STINARG_P);
 529                 ADD_CODE (td, n);
 530                 return;
 531         }
 532         if (mt == MINT_TYPE_VT) {
 533                 MonoClass *klass = mono_class_from_mono_type (type);
 534                 gint32 size;
 535                 if (mono_method_signature (td->method)->pinvoke)
 536                         size = mono_class_native_size (klass, NULL);
 537                 else
 538                         size = mono_class_value_size (klass, NULL);
 539                 ADD_CODE(td, MINT_STINARG_VT);
 540                 ADD_CODE(td, n);
 541                 WRITE32(td, &size);
 542         } else {
 543                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 544                 ADD_CODE(td, n);
 545         }
 546 }
 547
 548 static void
 549 load_local(TransformData *td, int n)
 550 {
 551         MonoType *type = td->header->locals [n];
 552         int mt = mint_type (type);
 553         int offset = td->rtm->local_offsets [n];
 554         MonoClass *klass = NULL;
 555         if (mt == MINT_TYPE_VT) {
 556                 klass = mono_class_from_mono_type (type);
 557                 gint32 size = mono_class_value_size (klass, NULL);
 558                 PUSH_VT(td, size);
 559                 ADD_CODE(td, MINT_LDLOC_VT);
 560                 ADD_CODE(td, offset); /*FIX for large offset */
 561                 WRITE32(td, &size);
 562         } else {
 563                 g_assert (mt < MINT_TYPE_VT);
 564                 if (mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 565                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 566                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 567                 } else if (mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 568                         td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 569                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 570                 } else {
 571                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 572                         ADD_CODE(td, offset); /*FIX for large offset */
 573                 }
 574                 if (mt == MINT_TYPE_O)
 575                         klass = mono_class_from_mono_type (type);
 576         }
 577         PUSH_TYPE(td, stack_type[mt], klass);
 578 }
 579
 580 static void
 581 store_local(TransformData *td, int n)
 582 {
 583         MonoType *type = td->header->locals [n];
 584         int mt = mint_type (type);
 585         int offset = td->rtm->local_offsets [n];
 586         CHECK_STACK (td, 1);
 587 #if SIZEOF_VOID_P == 8
 588         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 589                 ADD_CODE(td, MINT_CONV_I8_I4);
 590                 td->sp [-1].type = STACK_TYPE_I8;
 591         }
 592 #endif
 593         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 594                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 595                         td->method->klass->name, td->method->name,
 596                         stack_type [mt], td->sp [-1].type);
 597         }
 598         if (mt == MINT_TYPE_VT) {
 599                 MonoClass *klass = mono_class_from_mono_type (type);
 600                 gint32 size = mono_class_value_size (klass, NULL);
 601                 ADD_CODE(td, MINT_STLOC_VT);
 602                 ADD_CODE(td, offset); /*FIX for large offset */
 603                 WRITE32(td, &size);
 604                 if (td->sp [-1].type == STACK_TYPE_VT)
 605                         POP_VT(td, size);
 606         } else {
 607                 g_assert (mt < MINT_TYPE_VT);
 608                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 609                 ADD_CODE(td, offset); /*FIX for large offset */
 610         }
 611         --td->sp;
 612 }
 613
 614 #define SIMPLE_OP(td, op) \
 615         do { \
 616                 ADD_CODE(&td, op); \
 617                 ++td.ip; \
 618         } while (0)
 619
 620 static guint16
 621 get_data_item_index (TransformData *td, void *ptr)
 622 {
 623         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 624         guint index;
 625         if (p != NULL)
 626                 return GPOINTER_TO_UINT (p) - 1;
 627         if (td->max_data_items == td->n_data_items) {
 628                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 629                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 630         }
 631         index = td->n_data_items;
 632         td->data_items [index] = ptr;
 633         ++td->n_data_items;
 634         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 635         return index;
 636 }
 637
 638 static void
 639 interp_transform_call (TransformData *td, MonoMethod *method, MonoMethod *target_method, MonoDomain *domain, MonoGenericContext *generic_context, unsigned char *is_bb_start, int body_start_offset, MonoClass *constrained_class, gboolean readonly)
 640 {
 641         MonoImage *image = method->klass->image;
 642         MonoMethodSignature *csignature;
 643         MonoError error;
 644         int virtual = *td->ip == CEE_CALLVIRT;
 645         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 646         int i;
 647         guint32 vt_stack_used = 0;
 648         guint32 vt_res_size = 0;
 649         int op = -1;
 650         int native = 0;
 651         int is_void = 0;
 652
 653         guint32 token = read32 (td->ip + 1);
 654
 655         if (target_method == NULL) {
 656                 if (calli) {
 657                         CHECK_STACK(td, 1);
 658                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 659                         --td->sp;
 660                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 661                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 662                         else
 663                                 csignature = mono_metadata_parse_signature (image, token);
 664
 665                         if (generic_context) {
 666                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 667                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 668                         }
 669
 670                         target_method = NULL;
 671                 } else {
 672                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 673                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 674                         else
 675                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 676                         csignature = mono_method_signature (target_method);
 677                         if (target_method->klass == mono_defaults.string_class) {
 678                                 if (target_method->name [0] == 'g') {
 679                                         if (strcmp (target_method->name, "get_Chars") == 0)
 680                                                 op = MINT_GETCHR;
 681                                         else if (strcmp (target_method->name, "get_Length") == 0)
 682                                                 op = MINT_STRLEN;
 683                                 }
 684                         } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 685                                 if (!strcmp (target_method->name, "get_Rank")) {
 686                                         op = MINT_ARRAY_RANK;
 687                                 } else if (!strcmp (target_method->name, "get_Length")) {
 688                                         op = MINT_LDLEN;
 689                                 } else if (!strcmp (target_method->name, "Address")) {
 690                                         op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 691                                 }
 692                         } else if (target_method && generic_context) {
 693                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 694                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 695                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 696                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 697                         }
 698                 }
 699         } else {
 700                 csignature = mono_method_signature (target_method);
 701         }
 702
 703         if (constrained_class) {
 704                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 705                         /* Use the corresponding method from the base type to avoid boxing */
 706                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 707                         g_assert (base_type);
 708                         constrained_class = mono_class_from_mono_type (base_type);
 709                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 710                         g_assert (target_method);
 711                 }
 712         }
 713
 714         if (constrained_class) {
 715                 mono_class_setup_vtable (constrained_class);
 716 #if DEBUG_INTERP
 717                 g_print ("CONSTRAINED.CALLVIRT: %s::%s.  %s (%p) ->\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 718 #endif
 719                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 720 #if DEBUG_INTERP
 721                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 722 #endif
 723                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 724                 mono_class_setup_vtable (target_method->klass);
 725
 726                 if (constrained_class->valuetype && (target_method->klass == mono_defaults.object_class || target_method->klass == mono_defaults.enum_class->parent || target_method->klass == mono_defaults.enum_class)) {
 727                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 728                                 /* managed pointer on the stack, we need to deref that puppy */
 729                                 ADD_CODE (td, MINT_LDIND_I);
 730                                 ADD_CODE (td, csignature->param_count);
 731                         }
 732                         ADD_CODE (td, MINT_BOX);
 733                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 734                         ADD_CODE (td, csignature->param_count);
 735                 } else if (!constrained_class->valuetype) {
 736                         /* managed pointer on the stack, we need to deref that puppy */
 737                         ADD_CODE (td, MINT_LDIND_I);
 738                         ADD_CODE (td, csignature->param_count);
 739                 } else {
 740                         if (target_method->klass->valuetype) {
 741                                 /* Own method */
 742                         } else {
 743                                 /* Interface method */
 744                                 int ioffset, slot;
 745
 746                                 mono_class_setup_vtable (constrained_class);
 747                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 748                                 if (ioffset == -1)
 749                                         g_error ("type load error: constrained_class");
 750                                 slot = mono_method_get_vtable_slot (target_method);
 751                                 if (slot == -1)
 752                                         g_error ("type load error: target_method->klass");
 753                                 target_method = constrained_class->vtable [ioffset + slot];
 754
 755                                 if (target_method->klass == mono_defaults.enum_class) {
 756                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 757                                                 /* managed pointer on the stack, we need to deref that puppy */
 758                                                 ADD_CODE (td, MINT_LDIND_I);
 759                                                 ADD_CODE (td, csignature->param_count);
 760                                         }
 761                                         ADD_CODE (td, MINT_BOX);
 762                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 763                                         ADD_CODE (td, csignature->param_count);
 764                                 }
 765                         }
 766                         virtual = FALSE;
 767                 }
 768         }
 769
 770         if (target_method)
 771                 mono_class_init (target_method->klass);
 772
 773         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 774         if (!calli && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 775                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 776                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
 777                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 778                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 779
 780                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 781                         int offset;
 782                         if (mono_interp_traceopt)
 783                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 784                         for (i = csignature->param_count - 1; i >= 0; --i)
 785                                 store_arg (td, i + csignature->hasthis);
 786
 787                         ADD_CODE(td, MINT_BR_S);
 788                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 789                         ADD_CODE(td, offset);
 790                         if (!is_bb_start [td->ip + 5 - td->il_code])
 791                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 792                         td->ip += 5;
 793                         return;
 794                 } else {
 795                         /* mheader might not exist if this is a delegate invoc, etc */
 796                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 797                                 if (mono_interp_traceopt)
 798                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 799                                 for (i = 0; i < csignature->param_count; i++)
 800                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 801                                         ADD_CODE (td, 0);
 802                                 if (csignature->hasthis) {
 803                                         if (virtual)
 804                                                 ADD_CODE(td, MINT_CKNULL);
 805                                         ADD_CODE (td, MINT_POP);
 806                                         ADD_CODE (td, 0);
 807                                 }
 808                                 td->sp -= csignature->param_count + csignature->hasthis;
 809                                 td->ip += 5;
 810                                 return;
 811                         }
 812                 }
 813         }
 814         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 815                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 816                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 817                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 818                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 819         }
 820         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 821         td->sp -= csignature->param_count + !!csignature->hasthis;
 822         for (i = 0; i < csignature->param_count; ++i) {
 823                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 824                         gint32 size;
 825                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 826                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 827                                 size = mono_class_native_size (klass, NULL);
 828                         else
 829                                 size = mono_class_value_size (klass, NULL);
 830                         size = (size + 7) & ~7;
 831                         vt_stack_used += size;
 832                 }
 833         }
 834
 835         /* need to handle typedbyref ... */
 836         if (csignature->ret->type != MONO_TYPE_VOID) {
 837                 int mt = mint_type(csignature->ret);
 838                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 839                 if (mt == MINT_TYPE_VT) {
 840                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 841                                 vt_res_size = mono_class_native_size (klass, NULL);
 842                         else
 843                                 vt_res_size = mono_class_value_size (klass, NULL);
 844                         PUSH_VT(td, vt_res_size);
 845                 }
 846                 PUSH_TYPE(td, stack_type[mt], klass);
 847         } else
 848                 is_void = TRUE;
 849
 850         if (op >= 0) {
 851                 ADD_CODE (td, op);
 852 #if SIZEOF_VOID_P == 8
 853                 if (op == MINT_LDLEN)
 854                         ADD_CODE (td, MINT_CONV_I4_I8);
 855 #endif
 856                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 857                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 858                         ADD_CODE (td, 1 + target_method->klass->rank);
 859                 }
 860         } else {
 861                 if (calli)
 862                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 863                 else if (virtual)
 864                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 865                 else
 866                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 867
 868                 if (calli) {
 869                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 870                 } else {
 871                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 872                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 873                 }
 874         }
 875         td->ip += 5;
 876         if (vt_stack_used != 0 || vt_res_size != 0) {
 877                 ADD_CODE(td, MINT_VTRESULT);
 878                 ADD_CODE(td, vt_res_size);
 879                 WRITE32(td, &vt_stack_used);
 880                 td->vt_sp -= vt_stack_used;
 881         }
 882 }
 883
 884 static void
 885 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
 886 {
 887         MonoMethodHeader *header = mono_method_get_header (method);
 888         MonoMethodSignature *signature = mono_method_signature (method);
 889         MonoImage *image = method->klass->image;
 890         MonoDomain *domain = mono_domain_get ();
 891         MonoClass *constrained_class = NULL;
 892         MonoError error;
 893         int offset, mt, i, i32;
 894         gboolean readonly = FALSE;
 895         MonoClass *klass;
 896         MonoClassField *field;
 897         const unsigned char *end;
 898         int new_in_start_offset;
 899         int body_start_offset;
 900         int target;
 901         guint32 token;
 902         TransformData td;
 903         int generating_code = 1;
 904
 905         memset(&td, 0, sizeof(td));
 906         td.method = method;
 907         td.rtm = rtm;
 908         td.is_bb_start = is_bb_start;
 909         td.il_code = header->code;
 910         td.code_size = header->code_size;
 911         td.header = header;
 912         td.max_code_size = td.code_size;
 913         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 914         td.new_code_end = td.new_code + td.max_code_size;
 915         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 916         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 917         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 918         td.stack_height = g_malloc(header->code_size * sizeof(int));
 919         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 920         td.n_data_items = 0;
 921         td.max_data_items = 0;
 922         td.data_items = NULL;
 923         td.data_hash = g_hash_table_new (NULL, NULL);
 924         rtm->data_items = td.data_items;
 925         for (i = 0; i < header->code_size; i++) {
 926                 td.forward_refs [i] = -1;
 927                 td.stack_height [i] = -1;
 928         }
 929         td.new_ip = td.new_code;
 930         td.last_new_ip = NULL;
 931
 932         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
 933         td.sp = td.stack;
 934         td.max_stack_height = 0;
 935
 936         for (i = 0; i < header->num_clauses; i++) {
 937                 MonoExceptionClause *c = header->clauses + i;
 938                 td.stack_height [c->handler_offset] = 0;
 939                 td.vt_stack_size [c->handler_offset] = 0;
 940                 td.is_bb_start [c->handler_offset] = 1;
 941
 942                 td.stack_height [c->handler_offset] = 1;
 943                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 944                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 945                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 946         }
 947
 948         td.ip = header->code;
 949         end = td.ip + header->code_size;
 950
 951         if (mono_interp_traceopt) {
 952                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 953                 char *name = mono_method_full_name (method, TRUE);
 954                 g_print ("Method %s, original code:\n", name);
 955                 g_print ("%s\n", tmp);
 956                 g_free (tmp);
 957                 g_free (name);
 958         }
 959
 960         if (signature->hasthis)
 961                 store_inarg (&td, 0);
 962         for (i = 0; i < signature->param_count; i++)
 963                 store_inarg (&td, i + !!signature->hasthis);
 964
 965         body_start_offset = td.new_ip - td.new_code;
 966
 967         for (i = 0; i < header->num_locals; i++) {
 968                 int mt = mint_type(header->locals [i]);
 969                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
 970                         ADD_CODE(&td, MINT_INITLOCALS);
 971                         break;
 972                 }
 973         }
 974
 975         while (td.ip < end) {
 976                 int in_offset;
 977
 978                 g_assert (td.sp >= td.stack);
 979                 g_assert (td.vt_sp < 0x10000000);
 980                 in_offset = td.ip - header->code;
 981                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
 982                 new_in_start_offset = td.new_ip - td.new_code;
 983                 td.in_start = td.ip;
 984                 while (td.forward_refs [in_offset] >= 0) {
 985                         int j = td.forward_refs [in_offset];
 986                         int slot;
 987                         td.forward_refs [in_offset] = td.forward_refs [j];
 988                         if (td.in_offsets [j] < 0) {
 989                                 int old_switch_offset = -td.in_offsets [j];
 990                                 int new_switch_offset = td.in_offsets [old_switch_offset];
 991                                 int switch_case = (j - old_switch_offset - 5) / 4;
 992                                 int n_cases = read32 (header->code + old_switch_offset + 1);
 993                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
 994                                 slot = new_switch_offset + 3 + 2 * switch_case;
 995                                 td.new_code [slot] = * (unsigned short *)(&offset);
 996                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
 997                         } else {
 998                                 int op = td.new_code [td.in_offsets [j]];
 999                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1000                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1001                                         g_assert (offset <= 32767);
1002                                         slot = td.in_offsets [j] + 1;
1003                                         td.new_code [slot] = offset;
1004                                 } else {
1005                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1006                                         slot = td.in_offsets [j] + 1;
1007                                         td.new_code [slot] = * (unsigned short *)(&offset);
1008                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1009                                 }
1010                         }
1011                 }
1012                 if (td.stack_height [in_offset] >= 0) {
1013                         g_assert (is_bb_start [in_offset]);
1014                         if (td.stack_height [in_offset] > 0)
1015                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1016                         td.sp = td.stack + td.stack_height [in_offset];
1017                         td.vt_sp = td.vt_stack_size [in_offset];
1018                 }
1019                 if (is_bb_start [in_offset]) {
1020                         generating_code = 1;
1021                 }
1022                 if (!generating_code) {
1023                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1024                                 ++td.ip;
1025                         continue;
1026                 }
1027                 if (mono_interp_traceopt > 1) {
1028                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1029                                 td.ip - td.il_code,
1030                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1031                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1032                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1033                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1034                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1035                                 (td.sp > td.stack && (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_VT)) ? (td.sp [-1].klass == NULL ? "?" : td.sp [-1].klass->name) : "",
1036                                 td.vt_sp, td.max_vt_sp);
1037                 }
1038                 switch (*td.ip) {
1039                 case CEE_NOP:
1040                         /* lose it */
1041                         ++td.ip;
1042                         break;
1043                 case CEE_BREAK:
1044                         SIMPLE_OP(td, MINT_BREAK);
1045                         break;
1046                 case CEE_LDARG_0:
1047                 case CEE_LDARG_1:
1048                 case CEE_LDARG_2:
1049                 case CEE_LDARG_3:
1050                         load_arg (&td, *td.ip - CEE_LDARG_0);
1051                         ++td.ip;
1052                         break;
1053                 case CEE_LDLOC_0:
1054                 case CEE_LDLOC_1:
1055                 case CEE_LDLOC_2:
1056                 case CEE_LDLOC_3:
1057                         load_local (&td, *td.ip - CEE_LDLOC_0);
1058                         ++td.ip;
1059                         break;
1060                 case CEE_STLOC_0:
1061                 case CEE_STLOC_1:
1062                 case CEE_STLOC_2:
1063                 case CEE_STLOC_3:
1064                         store_local (&td, *td.ip - CEE_STLOC_0);
1065                         ++td.ip;
1066                         break;
1067                 case CEE_LDARG_S:
1068                         load_arg (&td, ((guint8 *)td.ip)[1]);
1069                         td.ip += 2;
1070                         break;
1071                 case CEE_LDARGA_S: {
1072                         /* NOTE: n includes this */
1073                         int n = ((guint8 *)td.ip)[1];
1074                         if (n == 0 && signature->hasthis) {
1075                                 g_error ("LDTHISA: NOPE");
1076                                 ADD_CODE(&td, MINT_LDTHISA);
1077                         }
1078                         else {
1079                                 ADD_CODE(&td, MINT_LDARGA);
1080                                 ADD_CODE(&td, td.rtm->arg_offsets [n]);
1081                         }
1082                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1083                         td.ip += 2;
1084                         break;
1085                 }
1086                 case CEE_STARG_S:
1087                         store_arg (&td, ((guint8 *)td.ip)[1]);
1088                         td.ip += 2;
1089                         break;
1090                 case CEE_LDLOC_S:
1091                         load_local (&td, ((guint8 *)td.ip)[1]);
1092                         td.ip += 2;
1093                         break;
1094                 case CEE_LDLOCA_S:
1095                         ADD_CODE(&td, MINT_LDLOCA_S);
1096                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1097                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1098                         td.ip += 2;
1099                         break;
1100                 case CEE_STLOC_S:
1101                         store_local (&td, ((guint8 *)td.ip)[1]);
1102                         td.ip += 2;
1103                         break;
1104                 case CEE_LDNULL:
1105                         SIMPLE_OP(td, MINT_LDNULL);
1106                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1107                         break;
1108                 case CEE_LDC_I4_M1:
1109                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1110                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1111                         break;
1112                 case CEE_LDC_I4_0:
1113                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1114                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1115                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1116                                 td.ip += 2;
1117                         } else {
1118                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1119                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1120                         }
1121                         break;
1122                 case CEE_LDC_I4_1:
1123                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1124                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1125                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1126                                 td.ip += 2;
1127                         } else {
1128                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1129                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1130                         }
1131                         break;
1132                 case CEE_LDC_I4_2:
1133                 case CEE_LDC_I4_3:
1134                 case CEE_LDC_I4_4:
1135                 case CEE_LDC_I4_5:
1136                 case CEE_LDC_I4_6:
1137                 case CEE_LDC_I4_7:
1138                 case CEE_LDC_I4_8:
1139                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1140                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1141                         break;
1142                 case CEE_LDC_I4_S:
1143                         ADD_CODE(&td, MINT_LDC_I4_S);
1144                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1145                         td.ip += 2;
1146                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1147                         break;
1148                 case CEE_LDC_I4:
1149                         i32 = read32 (td.ip + 1);
1150                         ADD_CODE(&td, MINT_LDC_I4);
1151                         WRITE32(&td, &i32);
1152                         td.ip += 5;
1153                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1154                         break;
1155                 case CEE_LDC_I8: {
1156                         gint64 val = read64 (td.ip + 1);
1157                         ADD_CODE(&td, MINT_LDC_I8);
1158                         WRITE64(&td, &val);
1159                         td.ip += 9;
1160                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1161                         break;
1162                 }
1163                 case CEE_LDC_R4: {
1164                         float val;
1165                         readr4 (td.ip + 1, &val);
1166                         ADD_CODE(&td, MINT_LDC_R4);
1167                         WRITE32(&td, &val);
1168                         td.ip += 5;
1169                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1170                         break;
1171                 }
1172                 case CEE_LDC_R8: {
1173                         double val;
1174                         readr8 (td.ip + 1, &val);
1175                         ADD_CODE(&td, MINT_LDC_R8);
1176                         WRITE64(&td, &val);
1177                         td.ip += 9;
1178                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1179                         break;
1180                 }
1181                 case CEE_DUP: {
1182                         int type = td.sp [-1].type;
1183                         MonoClass *klass = td.sp [-1].klass;
1184                         if (td.sp [-1].type == STACK_TYPE_VT) {
1185                                 gint32 size = mono_class_value_size (klass, NULL);
1186                                 PUSH_VT(&td, size);
1187                                 ADD_CODE(&td, MINT_DUP_VT);
1188                                 WRITE32(&td, &size);
1189                                 td.ip ++;
1190                         } else
1191                                 SIMPLE_OP(td, MINT_DUP);
1192                         PUSH_TYPE(&td, type, klass);
1193                         break;
1194                 }
1195                 case CEE_POP:
1196                         CHECK_STACK(&td, 1);
1197                         SIMPLE_OP(td, MINT_POP);
1198                         ADD_CODE (&td, 0);
1199                         if (td.sp [-1].type == STACK_TYPE_VT) {
1200                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1201                                 size = (size + 7) & ~7;
1202                                 ADD_CODE(&td, MINT_VTRESULT);
1203                                 ADD_CODE(&td, 0);
1204                                 WRITE32(&td, &size);
1205                                 td.vt_sp -= size;
1206                         }
1207                         --td.sp;
1208                         break;
1209                 case CEE_JMP: {
1210                         MonoMethod *m;
1211                         if (td.sp > td.stack)
1212                                 g_warning ("CEE_JMP: stack must be empty");
1213                         token = read32 (td.ip + 1);
1214                         m = mono_get_method_full (image, token, NULL, generic_context);
1215                         ADD_CODE (&td, MINT_JMP);
1216                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1217                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1218                         td.ip += 5;
1219                         break;
1220                 }
1221                 case CEE_CALLVIRT: /* Fall through */
1222                 case CEE_CALLI:    /* Fall through */
1223                 case CEE_CALL: {
1224                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1225                         constrained_class = NULL;
1226                         readonly = FALSE;
1227                         break;
1228                 }
1229                 case CEE_RET: {
1230                         int vt_size = 0;
1231                         if (signature->ret->type != MONO_TYPE_VOID) {
1232                                 --td.sp;
1233                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1234                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1235                                         vt_size = mono_class_value_size (klass, NULL);
1236                                         vt_size = (vt_size + 7) & ~7;
1237                                 }
1238                         }
1239                         if (td.sp > td.stack)
1240                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1241                         if (td.vt_sp != vt_size)
1242                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1243                         if (vt_size == 0)
1244                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1245                         else {
1246                                 ADD_CODE(&td, MINT_RET_VT);
1247                                 WRITE32(&td, &vt_size);
1248                                 ++td.ip;
1249                         }
1250                         generating_code = 0;
1251                         break;
1252                 }
1253                 case CEE_BR:
1254                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1255                         td.ip += 5;
1256                         generating_code = 0;
1257                         break;
1258                 case CEE_BR_S:
1259                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1260                         td.ip += 2;
1261                         generating_code = 0;
1262                         break;
1263                 case CEE_BRFALSE:
1264                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1265                         td.ip += 5;
1266                         break;
1267                 case CEE_BRFALSE_S:
1268                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1269                         td.ip += 2;
1270                         break;
1271                 case CEE_BRTRUE:
1272                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1273                         td.ip += 5;
1274                         break;
1275                 case CEE_BRTRUE_S:
1276                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1277                         td.ip += 2;
1278                         break;
1279                 case CEE_BEQ:
1280                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1281                         td.ip += 5;
1282                         break;
1283                 case CEE_BEQ_S:
1284                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1285                         td.ip += 2;
1286                         break;
1287                 case CEE_BGE:
1288                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1289                         td.ip += 5;
1290                         break;
1291                 case CEE_BGE_S:
1292                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1293                         td.ip += 2;
1294                         break;
1295                 case CEE_BGT:
1296                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1297                         td.ip += 5;
1298                         break;
1299                 case CEE_BGT_S:
1300                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1301                         td.ip += 2;
1302                         break;
1303                 case CEE_BLT:
1304                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1305                         td.ip += 5;
1306                         break;
1307                 case CEE_BLT_S:
1308                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1309                         td.ip += 2;
1310                         break;
1311                 case CEE_BLE:
1312                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1313                         td.ip += 5;
1314                         break;
1315                 case CEE_BLE_S:
1316                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1317                         td.ip += 2;
1318                         break;
1319                 case CEE_BNE_UN:
1320                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1321                         td.ip += 5;
1322                         break;
1323                 case CEE_BNE_UN_S:
1324                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1325                         td.ip += 2;
1326                         break;
1327                 case CEE_BGE_UN:
1328                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1329                         td.ip += 5;
1330                         break;
1331                 case CEE_BGE_UN_S:
1332                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1333                         td.ip += 2;
1334                         break;
1335                 case CEE_BGT_UN:
1336                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1337                         td.ip += 5;
1338                         break;
1339                 case CEE_BGT_UN_S:
1340                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1341                         td.ip += 2;
1342                         break;
1343                 case CEE_BLE_UN:
1344                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1345                         td.ip += 5;
1346                         break;
1347                 case CEE_BLE_UN_S:
1348                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1349                         td.ip += 2;
1350                         break;
1351                 case CEE_BLT_UN:
1352                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1353                         td.ip += 5;
1354                         break;
1355                 case CEE_BLT_UN_S:
1356                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1357                         td.ip += 2;
1358                         break;
1359                 case CEE_SWITCH: {
1360                         guint32 n;
1361                         const unsigned char *next_ip;
1362                         const unsigned char *base_ip = td.ip;
1363                         unsigned short *next_new_ip;
1364                         ++td.ip;
1365                         n = read32 (td.ip);
1366                         ADD_CODE(&td, MINT_SWITCH);
1367                         ADD_CODE(&td, * (unsigned short *)(&n));
1368                         ADD_CODE(&td, * ((unsigned short *)&n + 1));
1369                         td.ip += 4;
1370                         next_ip = td.ip + n * 4;
1371                         next_new_ip = td.new_ip + n * 2;
1372                         for (i = 0; i < n; i++) {
1373                                 offset = read32 (td.ip);
1374                                 target = next_ip - td.il_code + offset;
1375                                 if (offset < 0)
1376                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1377                                 else {
1378                                         int prev = td.forward_refs [target];
1379                                         td.forward_refs [td.ip - td.il_code] = prev;
1380                                         td.forward_refs [target] = td.ip - td.il_code;
1381                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1382                                 }
1383                                 ADD_CODE(&td, * (unsigned short *)(&target));
1384                                 ADD_CODE(&td, * ((unsigned short *)&target + 1));
1385                                 td.ip += 4;
1386                         }
1387                         --td.sp;
1388                         break;
1389                 }
1390                 case CEE_LDIND_I1:
1391                         CHECK_STACK (&td, 1);
1392                         SIMPLE_OP (td, MINT_LDIND_I1);
1393                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1394                         break;
1395                 case CEE_LDIND_U1:
1396                         CHECK_STACK (&td, 1);
1397                         SIMPLE_OP (td, MINT_LDIND_U1);
1398                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1399                         break;
1400                 case CEE_LDIND_I2:
1401                         CHECK_STACK (&td, 1);
1402                         SIMPLE_OP (td, MINT_LDIND_I2);
1403                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1404                         break;
1405                 case CEE_LDIND_U2:
1406                         CHECK_STACK (&td, 1);
1407                         SIMPLE_OP (td, MINT_LDIND_U2);
1408                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1409                         break;
1410                 case CEE_LDIND_I4:
1411                         CHECK_STACK (&td, 1);
1412                         SIMPLE_OP (td, MINT_LDIND_I4);
1413                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1414                         break;
1415                 case CEE_LDIND_U4:
1416                         CHECK_STACK (&td, 1);
1417                         SIMPLE_OP (td, MINT_LDIND_U4);
1418                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1419                         break;
1420                 case CEE_LDIND_I8:
1421                         CHECK_STACK (&td, 1);
1422                         SIMPLE_OP (td, MINT_LDIND_I8);
1423                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1424                         break;
1425                 case CEE_LDIND_I:
1426                         CHECK_STACK (&td, 1);
1427                         SIMPLE_OP (td, MINT_LDIND_I);
1428                         ADD_CODE (&td, 0);
1429                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1430                         break;
1431                 case CEE_LDIND_R4:
1432                         CHECK_STACK (&td, 1);
1433                         SIMPLE_OP (td, MINT_LDIND_R4);
1434                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1435                         break;
1436                 case CEE_LDIND_R8:
1437                         CHECK_STACK (&td, 1);
1438                         SIMPLE_OP (td, MINT_LDIND_R8);
1439                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1440                         break;
1441                 case CEE_LDIND_REF:
1442                         CHECK_STACK (&td, 1);
1443                         SIMPLE_OP (td, MINT_LDIND_REF);
1444                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1445                         break;
1446                 case CEE_STIND_REF:
1447                         CHECK_STACK (&td, 2);
1448                         SIMPLE_OP (td, MINT_STIND_REF);
1449                         td.sp -= 2;
1450                         break;
1451                 case CEE_STIND_I1:
1452                         CHECK_STACK (&td, 2);
1453                         SIMPLE_OP (td, MINT_STIND_I1);
1454                         td.sp -= 2;
1455                         break;
1456                 case CEE_STIND_I2:
1457                         CHECK_STACK (&td, 2);
1458                         SIMPLE_OP (td, MINT_STIND_I2);
1459                         td.sp -= 2;
1460                         break;
1461                 case CEE_STIND_I4:
1462                         CHECK_STACK (&td, 2);
1463                         SIMPLE_OP (td, MINT_STIND_I4);
1464                         td.sp -= 2;
1465                         break;
1466                 case CEE_STIND_I:
1467                         CHECK_STACK (&td, 2);
1468                         SIMPLE_OP (td, MINT_STIND_I);
1469                         td.sp -= 2;
1470                         break;
1471                 case CEE_STIND_I8:
1472                         CHECK_STACK (&td, 2);
1473                         SIMPLE_OP (td, MINT_STIND_I8);
1474                         td.sp -= 2;
1475                         break;
1476                 case CEE_STIND_R4:
1477                         CHECK_STACK (&td, 2);
1478                         SIMPLE_OP (td, MINT_STIND_R4);
1479                         td.sp -= 2;
1480                         break;
1481                 case CEE_STIND_R8:
1482                         CHECK_STACK (&td, 2);
1483                         SIMPLE_OP (td, MINT_STIND_R8);
1484                         td.sp -= 2;
1485                         break;
1486                 case CEE_ADD:
1487                         binary_arith_op(&td, MINT_ADD_I4);
1488                         ++td.ip;
1489                         break;
1490                 case CEE_SUB:
1491                         binary_arith_op(&td, MINT_SUB_I4);
1492                         ++td.ip;
1493                         break;
1494                 case CEE_MUL:
1495                         binary_arith_op(&td, MINT_MUL_I4);
1496                         ++td.ip;
1497                         break;
1498                 case CEE_DIV:
1499                         binary_arith_op(&td, MINT_DIV_I4);
1500                         ++td.ip;
1501                         break;
1502                 case CEE_DIV_UN:
1503                         binary_arith_op(&td, MINT_DIV_UN_I4);
1504                         ++td.ip;
1505                         break;
1506                 case CEE_REM:
1507                         binary_int_op (&td, MINT_REM_I4);
1508                         ++td.ip;
1509                         break;
1510                 case CEE_REM_UN:
1511                         binary_int_op (&td, MINT_REM_UN_I4);
1512                         ++td.ip;
1513                         break;
1514                 case CEE_AND:
1515                         binary_int_op (&td, MINT_AND_I4);
1516                         ++td.ip;
1517                         break;
1518                 case CEE_OR:
1519                         binary_int_op (&td, MINT_OR_I4);
1520                         ++td.ip;
1521                         break;
1522                 case CEE_XOR:
1523                         binary_int_op (&td, MINT_XOR_I4);
1524                         ++td.ip;
1525                         break;
1526                 case CEE_SHL:
1527                         shift_op (&td, MINT_SHL_I4);
1528                         ++td.ip;
1529                         break;
1530                 case CEE_SHR:
1531                         shift_op (&td, MINT_SHR_I4);
1532                         ++td.ip;
1533                         break;
1534                 case CEE_SHR_UN:
1535                         shift_op (&td, MINT_SHR_UN_I4);
1536                         ++td.ip;
1537                         break;
1538                 case CEE_NEG:
1539                         unary_arith_op (&td, MINT_NEG_I4);
1540                         ++td.ip;
1541                         break;
1542                 case CEE_NOT:
1543                         unary_arith_op (&td, MINT_NOT_I4);
1544                         ++td.ip;
1545                         break;
1546                 case CEE_CONV_U1:
1547                         CHECK_STACK (&td, 1);
1548                         switch (td.sp [-1].type) {
1549                         case STACK_TYPE_R8:
1550                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1551                                 break;
1552                         case STACK_TYPE_I4:
1553                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1554                                 break;
1555                         case STACK_TYPE_I8:
1556                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1557                                 break;
1558                         default:
1559                                 g_assert_not_reached ();
1560                         }
1561                         ++td.ip;
1562                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1563                         break;
1564                 case CEE_CONV_I1:
1565                         CHECK_STACK (&td, 1);
1566                         switch (td.sp [-1].type) {
1567                         case STACK_TYPE_R8:
1568                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1569                                 break;
1570                         case STACK_TYPE_I4:
1571                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1572                                 break;
1573                         case STACK_TYPE_I8:
1574                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1575                                 break;
1576                         default:
1577                                 g_assert_not_reached ();
1578                         }
1579                         ++td.ip;
1580                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1581                         break;
1582                 case CEE_CONV_U2:
1583                         CHECK_STACK (&td, 1);
1584                         switch (td.sp [-1].type) {
1585                         case STACK_TYPE_R8:
1586                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1587                                 break;
1588                         case STACK_TYPE_I4:
1589                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1590                                 break;
1591                         case STACK_TYPE_I8:
1592                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1593                                 break;
1594                         default:
1595                                 g_assert_not_reached ();
1596                         }
1597                         ++td.ip;
1598                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1599                         break;
1600                 case CEE_CONV_I2:
1601                         CHECK_STACK (&td, 1);
1602                         switch (td.sp [-1].type) {
1603                         case STACK_TYPE_R8:
1604                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1605                                 break;
1606                         case STACK_TYPE_I4:
1607                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1608                                 break;
1609                         case STACK_TYPE_I8:
1610                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1611                                 break;
1612                         default:
1613                                 g_assert_not_reached ();
1614                         }
1615                         ++td.ip;
1616                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1617                         break;
1618                 case CEE_CONV_U:
1619                         CHECK_STACK (&td, 1);
1620                         switch (td.sp [-1].type) {
1621                         case STACK_TYPE_R8:
1622 #if SIZEOF_VOID_P == 4
1623                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1624 #else
1625                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1626 #endif
1627                                 break;
1628                         case STACK_TYPE_I4:
1629 #if SIZEOF_VOID_P == 8
1630                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1631 #endif
1632                                 break;
1633                         case STACK_TYPE_I8:
1634 #if SIZEOF_VOID_P == 4
1635                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1636 #endif
1637                                 break;
1638                         case STACK_TYPE_MP:
1639                                 break;
1640                         default:
1641                                 g_assert_not_reached ();
1642                         }
1643                         ++td.ip;
1644                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1645                         break;
1646                 case CEE_CONV_I:
1647                         CHECK_STACK (&td, 1);
1648                         switch (td.sp [-1].type) {
1649                         case STACK_TYPE_R8:
1650 #if SIZEOF_VOID_P == 8
1651                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1652 #else
1653                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1654 #endif
1655                                 break;
1656                         case STACK_TYPE_I4:
1657 #if SIZEOF_VOID_P == 8
1658                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1659 #endif
1660                                 break;
1661                         case STACK_TYPE_O:
1662                                 break;
1663                         case STACK_TYPE_MP:
1664                                 break;
1665                         case STACK_TYPE_I8:
1666 #if SIZEOF_VOID_P == 4
1667                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1668 #endif
1669                                 break;
1670                         default:
1671                                 g_assert_not_reached ();
1672                         }
1673                         ++td.ip;
1674                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1675                         break;
1676                 case CEE_CONV_U4:
1677                         CHECK_STACK (&td, 1);
1678                         switch (td.sp [-1].type) {
1679                         case STACK_TYPE_R8:
1680                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1681                                 break;
1682                         case STACK_TYPE_I4:
1683                                 break;
1684                         case STACK_TYPE_I8:
1685                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1686                                 break;
1687                         case STACK_TYPE_MP:
1688 #if SIZEOF_VOID_P == 8
1689                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1690 #endif
1691                                 break;
1692                         default:
1693                                 g_assert_not_reached ();
1694                         }
1695                         ++td.ip;
1696                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1697                         break;
1698                 case CEE_CONV_I4:
1699                         CHECK_STACK (&td, 1);
1700                         switch (td.sp [-1].type) {
1701                         case STACK_TYPE_R8:
1702                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1703                                 break;
1704                         case STACK_TYPE_I4:
1705                                 break;
1706                         case STACK_TYPE_I8:
1707                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1708                                 break;
1709                         case STACK_TYPE_MP:
1710 #if SIZEOF_VOID_P == 8
1711                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1712 #endif
1713                                 break;
1714                         default:
1715                                 g_assert_not_reached ();
1716                         }
1717                         ++td.ip;
1718                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1719                         break;
1720                 case CEE_CONV_I8:
1721                         CHECK_STACK (&td, 1);
1722                         switch (td.sp [-1].type) {
1723                         case STACK_TYPE_R8:
1724                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1725                                 break;
1726                         case STACK_TYPE_I4:
1727                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1728                                 break;
1729                         case STACK_TYPE_I8:
1730                                 break;
1731                         case STACK_TYPE_MP:
1732 #if SIZEOF_VOID_P == 4
1733                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1734 #endif
1735                                 break;
1736                         default:
1737                                 g_assert_not_reached ();
1738                         }
1739                         ++td.ip;
1740                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1741                         break;
1742                 case CEE_CONV_R4:
1743                         CHECK_STACK (&td, 1);
1744                         switch (td.sp [-1].type) {
1745                         case STACK_TYPE_R8:
1746                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1747                                 break;
1748                         case STACK_TYPE_I8:
1749                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1750                                 break;
1751                         case STACK_TYPE_I4:
1752                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1753                                 break;
1754                         default:
1755                                 g_assert_not_reached ();
1756                         }
1757                         ++td.ip;
1758                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1759                         break;
1760                 case CEE_CONV_R8:
1761                         CHECK_STACK (&td, 1);
1762                         switch (td.sp [-1].type) {
1763                         case STACK_TYPE_I4:
1764                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1765                                 break;
1766                         case STACK_TYPE_I8:
1767                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1768                                 break;
1769                         case STACK_TYPE_R8:
1770                                 break;
1771                         default:
1772                                 g_assert_not_reached ();
1773                         }
1774                         ++td.ip;
1775                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1776                         break;
1777                 case CEE_CONV_U8:
1778                         CHECK_STACK (&td, 1);
1779                         switch (td.sp [-1].type) {
1780                         case STACK_TYPE_I4:
1781                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1782                                 break;
1783                         case STACK_TYPE_I8:
1784                                 break;
1785                         case STACK_TYPE_R8:
1786                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1787                                 break;
1788                         case STACK_TYPE_MP:
1789 #if SIZEOF_VOID_P == 4
1790                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1791 #endif
1792                                 break;
1793                         default:
1794                                 g_assert_not_reached ();
1795                         }
1796                         ++td.ip;
1797                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1798                         break;
1799                 case CEE_CPOBJ: {
1800                         CHECK_STACK (&td, 2);
1801
1802                         token = read32 (td.ip + 1);
1803                         klass = mono_class_get_full (image, token, generic_context);
1804
1805                         if (klass->valuetype) {
1806                                 ADD_CODE (&td, MINT_CPOBJ);
1807                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1808                         } else {
1809                                 ADD_CODE (&td, MINT_LDIND_REF);
1810                                 ADD_CODE (&td, MINT_STIND_REF);
1811                         }
1812                         td.ip += 5;
1813                         td.sp -= 2;
1814                         break;
1815                 }
1816                 case CEE_LDOBJ: {
1817                         int size;
1818                         CHECK_STACK (&td, 1);
1819
1820                         token = read32 (td.ip + 1);
1821
1822                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1823                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1824                         else
1825                                 klass = mono_class_get_full (image, token, generic_context);
1826
1827                         ADD_CODE(&td, MINT_LDOBJ);
1828                         ADD_CODE(&td, get_data_item_index(&td, klass));
1829                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1830                                 size = mono_class_value_size (klass, NULL);
1831                                 PUSH_VT(&td, size);
1832                         }
1833                         td.ip += 5;
1834                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1835                         break;
1836                 }
1837                 case CEE_LDSTR: {
1838                         MonoString *s;
1839                         token = mono_metadata_token_index (read32 (td.ip + 1));
1840                         td.ip += 5;
1841                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1842                                 s = mono_string_new_wrapper(
1843                                         mono_method_get_wrapper_data (method, token));
1844                         }
1845                         else
1846                                 s = mono_ldstr (domain, image, token);
1847                         ADD_CODE(&td, MINT_LDSTR);
1848                         ADD_CODE(&td, get_data_item_index (&td, s));
1849                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1850                         break;
1851                 }
1852                 case CEE_NEWOBJ: {
1853                         MonoMethod *m;
1854                         MonoMethodSignature *csignature;
1855                         guint32 vt_stack_used = 0;
1856                         guint32 vt_res_size = 0;
1857
1858                         td.ip++;
1859                         token = read32 (td.ip);
1860                         td.ip += 4;
1861
1862                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1863                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1864                         else
1865                                 m = mono_get_method_full (image, token, NULL, generic_context);
1866
1867                         csignature = mono_method_signature (m);
1868                         klass = m->klass;
1869                         td.sp -= csignature->param_count;
1870                         ADD_CODE(&td, MINT_NEWOBJ);
1871                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1872                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1873
1874                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1875                                 vt_res_size = mono_class_value_size (klass, NULL);
1876                                 PUSH_VT (&td, vt_res_size);
1877                         }
1878                         for (i = 0; i < csignature->param_count; ++i) {
1879                                 int mt = mint_type(csignature->params [i]);
1880                                 if (mt == MINT_TYPE_VT) {
1881                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1882                                         gint32 size = mono_class_value_size (k, NULL);
1883                                         size = (size + 7) & ~7;
1884                                         vt_stack_used += size;
1885                                 }
1886                         }
1887                         if (vt_stack_used != 0 || vt_res_size != 0) {
1888                                 ADD_CODE(&td, MINT_VTRESULT);
1889                                 ADD_CODE(&td, vt_res_size);
1890                                 WRITE32(&td, &vt_stack_used);
1891                                 td.vt_sp -= vt_stack_used;
1892                         }
1893                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1894                         break;
1895                 }
1896                 case CEE_CASTCLASS:
1897                         CHECK_STACK (&td, 1);
1898                         token = read32 (td.ip + 1);
1899                         klass = mono_class_get_full (image, token, generic_context);
1900                         ADD_CODE(&td, MINT_CASTCLASS);
1901                         ADD_CODE(&td, get_data_item_index (&td, klass));
1902                         td.sp [-1].klass = klass;
1903                         td.ip += 5;
1904                         break;
1905                 case CEE_ISINST:
1906                         CHECK_STACK (&td, 1);
1907                         token = read32 (td.ip + 1);
1908                         klass = mono_class_get_full (image, token, generic_context);
1909                         ADD_CODE(&td, MINT_ISINST);
1910                         ADD_CODE(&td, get_data_item_index (&td, klass));
1911                         td.ip += 5;
1912                         break;
1913                 case CEE_CONV_R_UN:
1914                         switch (td.sp [-1].type) {
1915                         case STACK_TYPE_R8:
1916                                 break;
1917                         case STACK_TYPE_I8:
1918                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1919                                 break;
1920                         case STACK_TYPE_I4:
1921                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1922                                 break;
1923                         default:
1924                                 g_assert_not_reached ();
1925                         }
1926                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1927                         ++td.ip;
1928                         break;
1929                 case CEE_UNBOX:
1930                         CHECK_STACK (&td, 1);
1931                         token = read32 (td.ip + 1);
1932
1933                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1934                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1935                         else
1936                                 klass = mono_class_get_full (image, token, generic_context);
1937
1938                         if (mono_class_is_nullable (klass)) {
1939                                 g_error ("cee_unbox: implement Nullable");
1940                         }
1941
1942                         ADD_CODE(&td, MINT_UNBOX);
1943                         ADD_CODE(&td, get_data_item_index (&td, klass));
1944                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1945                         td.ip += 5;
1946                         break;
1947                 case CEE_UNBOX_ANY:
1948                         CHECK_STACK (&td, 1);
1949                         token = read32 (td.ip + 1);
1950
1951                         g_assert (method->wrapper_type == MONO_WRAPPER_NONE);
1952                         klass = mono_class_get_full (image, token, generic_context);
1953
1954                         if (mini_type_is_reference (&klass->byval_arg)) {
1955                                 ADD_CODE (&td, MINT_CASTCLASS);
1956                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1957                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1958                                 td.ip += 5;
1959                         } else if (mono_class_is_nullable (klass)) {
1960                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
1961                                 /* td.ip is incremented by interp_transform_call */
1962                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
1963                         } else {
1964                                 int mt = mint_type (&klass->byval_arg);
1965                                 ADD_CODE (&td, MINT_UNBOX);
1966                                 ADD_CODE (&td, get_data_item_index (&td, klass));
1967
1968                                 ADD_CODE (&td, MINT_LDOBJ);
1969                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1970                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
1971
1972                                 if (mt == MINT_TYPE_VT) {
1973                                         int size = mono_class_value_size (klass, NULL);
1974                                         PUSH_VT (&td, size);
1975                                 }
1976                                 td.ip += 5;
1977                         }
1978
1979                         break;
1980                 case CEE_THROW:
1981                         CHECK_STACK (&td, 1);
1982                         SIMPLE_OP (td, MINT_THROW);
1983                         --td.sp;
1984                         generating_code = 0;
1985                         break;
1986                 case CEE_LDFLDA:
1987                         CHECK_STACK (&td, 1);
1988                         token = read32 (td.ip + 1);
1989                         field = mono_field_from_token (image, token, &klass, generic_context);
1990                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
1991                         mono_class_init (klass);
1992                         if (is_static) {
1993                                 ADD_CODE (&td, MINT_POP);
1994                                 ADD_CODE (&td, 0);
1995                                 ADD_CODE (&td, MINT_LDSFLDA);
1996                                 ADD_CODE (&td, get_data_item_index (&td, field));
1997                         } else {
1998                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
1999                                         ADD_CODE (&td, MINT_LDFLDA);
2000                                 } else {
2001                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2002                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2003                                 }
2004                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2005                         }
2006                         td.ip += 5;
2007                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2008                         break;
2009                 case CEE_LDFLD: {
2010                         CHECK_STACK (&td, 1);
2011                         token = read32 (td.ip + 1);
2012                         field = mono_field_from_token (image, token, &klass, generic_context);
2013                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2014                         mono_class_init (klass);
2015
2016                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2017                         mt = mint_type (&field_klass->byval_arg);
2018                         if (klass->marshalbyref) {
2019                                 g_assert (!is_static);
2020                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2021                                 ADD_CODE(&td, get_data_item_index (&td, field));
2022                         } else  {
2023                                 if (is_static) {
2024                                         ADD_CODE (&td, MINT_POP);
2025                                         ADD_CODE (&td, 0);
2026                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2027                                         ADD_CODE (&td, get_data_item_index (&td, field));
2028                                 } else {
2029                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2030                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2031                                 }
2032                         }
2033                         if (mt == MINT_TYPE_VT) {
2034                                 int size = mono_class_value_size (field_klass, NULL);
2035                                 PUSH_VT(&td, size);
2036                                 WRITE32(&td, &size);
2037                         }
2038                         if (td.sp [-1].type == STACK_TYPE_VT) {
2039                                 int size = mono_class_value_size (klass, NULL);
2040                                 size = (size + 7) & ~7;
2041                                 td.vt_sp -= size;
2042                                 ADD_CODE (&td, MINT_VTRESULT);
2043                                 ADD_CODE (&td, 0);
2044                                 WRITE32 (&td, &size);
2045                         }
2046                         td.ip += 5;
2047                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2048                         break;
2049                 }
2050                 case CEE_STFLD: {
2051                         CHECK_STACK (&td, 2);
2052                         token = read32 (td.ip + 1);
2053                         field = mono_field_from_token (image, token, &klass, generic_context);
2054                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2055                         mono_class_init (klass);
2056                         mt = mint_type(field->type);
2057
2058                         if (klass->marshalbyref) {
2059                                 g_assert (!is_static);
2060                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2061                                 ADD_CODE(&td, get_data_item_index (&td, field));
2062                         } else  {
2063                                 if (is_static) {
2064                                         ADD_CODE (&td, MINT_POP);
2065                                         ADD_CODE (&td, 1);
2066                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2067                                         ADD_CODE (&td, get_data_item_index (&td, field));
2068                                 } else {
2069                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2070                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2071                                 }
2072                         }
2073                         if (mt == MINT_TYPE_VT) {
2074                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2075                                 int size = mono_class_value_size (klass, NULL);
2076                                 POP_VT(&td, size);
2077                                 WRITE32(&td, &size);
2078                         }
2079                         td.ip += 5;
2080                         td.sp -= 2;
2081                         break;
2082                 }
2083                 case CEE_LDSFLDA:
2084                         token = read32 (td.ip + 1);
2085                         field = mono_field_from_token (image, token, &klass, generic_context);
2086                         ADD_CODE(&td, MINT_LDSFLDA);
2087                         ADD_CODE(&td, get_data_item_index (&td, field));
2088                         td.ip += 5;
2089                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2090                         break;
2091                 case CEE_LDSFLD:
2092                         token = read32 (td.ip + 1);
2093                         field = mono_field_from_token (image, token, &klass, generic_context);
2094                         mt = mint_type(field->type);
2095                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2096                         ADD_CODE(&td, get_data_item_index (&td, field));
2097                         klass = NULL;
2098                         if (mt == MINT_TYPE_VT) {
2099                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2100                                 int size = mono_class_value_size (klass, NULL);
2101                                 PUSH_VT(&td, size);
2102                                 WRITE32(&td, &size);
2103                                 klass = field->type->data.klass;
2104                         } else {
2105                                 if (mt == MINT_TYPE_O)
2106                                         klass = mono_class_from_mono_type (field->type);
2107                         }
2108                         td.ip += 5;
2109                         PUSH_TYPE(&td, stack_type [mt], klass);
2110                         break;
2111                 case CEE_STSFLD:
2112                         CHECK_STACK (&td, 1);
2113                         token = read32 (td.ip + 1);
2114                         field = mono_field_from_token (image, token, &klass, generic_context);
2115                         mt = mint_type(field->type);
2116                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2117                         ADD_CODE(&td, get_data_item_index (&td, field));
2118                         if (mt == MINT_TYPE_VT) {
2119                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2120                                 int size = mono_class_value_size (klass, NULL);
2121                                 POP_VT (&td, size);
2122                                 WRITE32 (&td, &size);
2123                         }
2124                         td.ip += 5;
2125                         --td.sp;
2126                         break;
2127                 case CEE_STOBJ: {
2128                         int size;
2129                         token = read32 (td.ip + 1);
2130
2131                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2132                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2133                         else
2134                                 klass = mono_class_get_full (image, token, generic_context);
2135
2136                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2137                         ADD_CODE(&td, get_data_item_index (&td, klass));
2138                         if (td.sp [-1].type == STACK_TYPE_VT) {
2139                                 size = mono_class_value_size (klass, NULL);
2140                                 size = (size + 7) & ~7;
2141                                 td.vt_sp -= size;
2142                         }
2143                         td.ip += 5;
2144                         td.sp -= 2;
2145                         break;
2146                 }
2147                 case CEE_CONV_OVF_I_UN:
2148                 case CEE_CONV_OVF_U_UN:
2149                         CHECK_STACK (&td, 1);
2150                         switch (td.sp [-1].type) {
2151                         case STACK_TYPE_R8:
2152 #if SIZEOF_VOID_P == 8
2153                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2154 #else
2155                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2156 #endif
2157                                 break;
2158                         case STACK_TYPE_I8:
2159 #if SIZEOF_VOID_P == 4
2160                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2161 #endif
2162                                 break;
2163                         case STACK_TYPE_I4:
2164 #if SIZEOF_VOID_P == 8
2165                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2166 #endif
2167                                 break;
2168                         default:
2169                                 g_assert_not_reached ();
2170                                 break;
2171                         }
2172                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2173                         ++td.ip;
2174                         break;
2175                 case CEE_CONV_OVF_I8_UN:
2176                 case CEE_CONV_OVF_U8_UN:
2177                         CHECK_STACK (&td, 1);
2178                         switch (td.sp [-1].type) {
2179                         case STACK_TYPE_R8:
2180                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2181                                 break;
2182                         case STACK_TYPE_I8:
2183                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2184                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2185                                 break;
2186                         case STACK_TYPE_I4:
2187                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2188                                 break;
2189                         default:
2190                                 g_assert_not_reached ();
2191                                 break;
2192                         }
2193                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2194                         ++td.ip;
2195                         break;
2196                 case CEE_BOX: {
2197                         int size;
2198                         CHECK_STACK (&td, 1);
2199                         token = read32 (td.ip + 1);
2200                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2201                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2202                         else
2203                                 klass = mono_class_get_full (image, token, generic_context);
2204
2205                         if (mono_class_is_nullable (klass)) {
2206                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2207                                 /* td.ip is incremented by interp_transform_call */
2208                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2209                         } else if (!klass->valuetype) {
2210                                 /* already boxed, do nothing. */
2211                                 td.ip += 5;
2212                         } else {
2213                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2214                                         size = mono_class_value_size (klass, NULL);
2215                                         size = (size + 7) & ~7;
2216                                         td.vt_sp -= size;
2217                                 }
2218                                 ADD_CODE(&td, MINT_BOX);
2219                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2220                                 ADD_CODE (&td, 0);
2221                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2222                                 td.ip += 5;
2223                         }
2224
2225                         break;
2226                 }
2227                 case CEE_NEWARR: {
2228                         CHECK_STACK (&td, 1);
2229                         token = read32 (td.ip + 1);
2230
2231                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2232                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2233                         else
2234                                 klass = mono_class_get_full (image, token, generic_context);
2235
2236                         unsigned char lentype = (td.sp - 1)->type;
2237                         if (lentype == STACK_TYPE_I8) {
2238                                 /* mimic mini behaviour */
2239                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2240                         } else {
2241                                 g_assert (lentype == STACK_TYPE_I4);
2242                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2243                         }
2244                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2245                         ADD_CODE (&td, MINT_NEWARR);
2246                         ADD_CODE (&td, get_data_item_index (&td, klass));
2247                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2248                         td.ip += 5;
2249                         break;
2250                 }
2251                 case CEE_LDLEN:
2252                         CHECK_STACK (&td, 1);
2253                         SIMPLE_OP (td, MINT_LDLEN);
2254                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2255                         break;
2256                 case CEE_LDELEMA:
2257                         CHECK_STACK (&td, 2);
2258                         ENSURE_I4 (&td, 1);
2259                         token = read32 (td.ip + 1);
2260
2261                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2262                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2263                         else
2264                                 klass = mono_class_get_full (image, token, generic_context);
2265
2266                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2267                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2268                         } else {
2269                                 ADD_CODE (&td, MINT_LDELEMA);
2270                         }
2271                         ADD_CODE (&td, get_data_item_index (&td, klass));
2272                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2273                         ADD_CODE (&td, 2);
2274                         readonly = FALSE;
2275
2276                         td.ip += 5;
2277                         --td.sp;
2278                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2279                         break;
2280                 case CEE_LDELEM_I1:
2281                         CHECK_STACK (&td, 2);
2282                         ENSURE_I4 (&td, 1);
2283                         SIMPLE_OP (td, MINT_LDELEM_I1);
2284                         --td.sp;
2285                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2286                         break;
2287                 case CEE_LDELEM_U1:
2288                         CHECK_STACK (&td, 2);
2289                         ENSURE_I4 (&td, 1);
2290                         SIMPLE_OP (td, MINT_LDELEM_U1);
2291                         --td.sp;
2292                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2293                         break;
2294                 case CEE_LDELEM_I2:
2295                         CHECK_STACK (&td, 2);
2296                         ENSURE_I4 (&td, 1);
2297                         SIMPLE_OP (td, MINT_LDELEM_I2);
2298                         --td.sp;
2299                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2300                         break;
2301                 case CEE_LDELEM_U2:
2302                         CHECK_STACK (&td, 2);
2303                         ENSURE_I4 (&td, 1);
2304                         SIMPLE_OP (td, MINT_LDELEM_U2);
2305                         --td.sp;
2306                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2307                         break;
2308                 case CEE_LDELEM_I4:
2309                         CHECK_STACK (&td, 2);
2310                         ENSURE_I4 (&td, 1);
2311                         SIMPLE_OP (td, MINT_LDELEM_I4);
2312                         --td.sp;
2313                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2314                         break;
2315                 case CEE_LDELEM_U4:
2316                         CHECK_STACK (&td, 2);
2317                         ENSURE_I4 (&td, 1);
2318                         SIMPLE_OP (td, MINT_LDELEM_U4);
2319                         --td.sp;
2320                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2321                         break;
2322                 case CEE_LDELEM_I8:
2323                         CHECK_STACK (&td, 2);
2324                         ENSURE_I4 (&td, 1);
2325                         SIMPLE_OP (td, MINT_LDELEM_I8);
2326                         --td.sp;
2327                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2328                         break;
2329                 case CEE_LDELEM_I:
2330                         CHECK_STACK (&td, 2);
2331                         ENSURE_I4 (&td, 1);
2332                         SIMPLE_OP (td, MINT_LDELEM_I);
2333                         --td.sp;
2334                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2335                         break;
2336                 case CEE_LDELEM_R4:
2337                         CHECK_STACK (&td, 2);
2338                         ENSURE_I4 (&td, 1);
2339                         SIMPLE_OP (td, MINT_LDELEM_R4);
2340                         --td.sp;
2341                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2342                         break;
2343                 case CEE_LDELEM_R8:
2344                         CHECK_STACK (&td, 2);
2345                         ENSURE_I4 (&td, 1);
2346                         SIMPLE_OP (td, MINT_LDELEM_R8);
2347                         --td.sp;
2348                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2349                         break;
2350                 case CEE_LDELEM_REF:
2351                         CHECK_STACK (&td, 2);
2352                         ENSURE_I4 (&td, 1);
2353                         SIMPLE_OP (td, MINT_LDELEM_REF);
2354                         --td.sp;
2355                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2356                         break;
2357                 case CEE_LDELEM:
2358                         CHECK_STACK (&td, 2);
2359                         token = read32 (td.ip + 1);
2360                         klass = mono_class_get_full (image, token, generic_context);
2361                         switch (mint_type (&klass->byval_arg)) {
2362                                 case MINT_TYPE_I1:
2363                                         ENSURE_I4 (&td, 1);
2364                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2365                                         --td.sp;
2366                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2367                                         break;
2368                                 case MINT_TYPE_U1:
2369                                         ENSURE_I4 (&td, 1);
2370                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2371                                         --td.sp;
2372                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2373                                         break;
2374                                 case MINT_TYPE_U2:
2375                                         ENSURE_I4 (&td, 1);
2376                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2377                                         --td.sp;
2378                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2379                                         break;
2380                                 case MINT_TYPE_I2:
2381                                         ENSURE_I4 (&td, 1);
2382                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2383                                         --td.sp;
2384                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2385                                         break;
2386                                 case MINT_TYPE_I4:
2387                                         ENSURE_I4 (&td, 1);
2388                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2389                                         --td.sp;
2390                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2391                                         break;
2392                                 case MINT_TYPE_I8:
2393                                         ENSURE_I4 (&td, 1);
2394                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2395                                         --td.sp;
2396                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2397                                         break;
2398                                 case MINT_TYPE_R4:
2399                                         ENSURE_I4 (&td, 1);
2400                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2401                                         --td.sp;
2402                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2403                                         break;
2404                                 case MINT_TYPE_R8:
2405                                         ENSURE_I4 (&td, 1);
2406                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2407                                         --td.sp;
2408                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2409                                         break;
2410                                 case MINT_TYPE_O:
2411                                         ENSURE_I4 (&td, 1);
2412                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2413                                         --td.sp;
2414                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2415                                         break;
2416                                 case MINT_TYPE_VT: {
2417                                         int size = mono_class_value_size (klass, NULL);
2418                                         ENSURE_I4 (&td, 1);
2419                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2420                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2421                                         WRITE32 (&td, &size);
2422                                         --td.sp;
2423                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2424                                         PUSH_VT (&td, size);
2425                                         break;
2426                                 }
2427                                 default: {
2428                                         GString *res = g_string_new ("");
2429                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2430                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2431                                         g_string_free (res, TRUE);
2432                                         g_assert (0);
2433                                         break;
2434                                 }
2435                         }
2436                         td.ip += 4;
2437                         break;
2438                 case CEE_STELEM_I:
2439                         CHECK_STACK (&td, 3);
2440                         ENSURE_I4 (&td, 2);
2441                         SIMPLE_OP (td, MINT_STELEM_I);
2442                         td.sp -= 3;
2443                         break;
2444                 case CEE_STELEM_I1:
2445                         CHECK_STACK (&td, 3);
2446                         ENSURE_I4 (&td, 2);
2447                         SIMPLE_OP (td, MINT_STELEM_I1);
2448                         td.sp -= 3;
2449                         break;
2450                 case CEE_STELEM_I2:
2451                         CHECK_STACK (&td, 3);
2452                         ENSURE_I4 (&td, 2);
2453                         SIMPLE_OP (td, MINT_STELEM_I2);
2454                         td.sp -= 3;
2455                         break;
2456                 case CEE_STELEM_I4:
2457                         CHECK_STACK (&td, 3);
2458                         ENSURE_I4 (&td, 2);
2459                         SIMPLE_OP (td, MINT_STELEM_I4);
2460                         td.sp -= 3;
2461                         break;
2462                 case CEE_STELEM_I8:
2463                         CHECK_STACK (&td, 3);
2464                         ENSURE_I4 (&td, 2);
2465                         SIMPLE_OP (td, MINT_STELEM_I8);
2466                         td.sp -= 3;
2467                         break;
2468                 case CEE_STELEM_R4:
2469                         CHECK_STACK (&td, 3);
2470                         ENSURE_I4 (&td, 2);
2471                         SIMPLE_OP (td, MINT_STELEM_R4);
2472                         td.sp -= 3;
2473                         break;
2474                 case CEE_STELEM_R8:
2475                         CHECK_STACK (&td, 3);
2476                         ENSURE_I4 (&td, 2);
2477                         SIMPLE_OP (td, MINT_STELEM_R8);
2478                         td.sp -= 3;
2479                         break;
2480                 case CEE_STELEM_REF:
2481                         CHECK_STACK (&td, 3);
2482                         ENSURE_I4 (&td, 2);
2483                         SIMPLE_OP (td, MINT_STELEM_REF);
2484                         td.sp -= 3;
2485                         break;
2486                 case CEE_STELEM:
2487                         CHECK_STACK (&td, 3);
2488                         ENSURE_I4 (&td, 2);
2489                         token = read32 (td.ip + 1);
2490                         klass = mono_class_get_full (image, token, generic_context);
2491                         switch (mint_type (&klass->byval_arg)) {
2492                                 case MINT_TYPE_U1:
2493                                         SIMPLE_OP (td, MINT_STELEM_U1);
2494                                         break;
2495                                 case MINT_TYPE_I4:
2496                                         SIMPLE_OP (td, MINT_STELEM_I4);
2497                                         break;
2498                                 case MINT_TYPE_O:
2499                                         SIMPLE_OP (td, MINT_STELEM_REF);
2500                                         break;
2501                                 case MINT_TYPE_VT: {
2502                                         int size = mono_class_value_size (klass, NULL);
2503                                         SIMPLE_OP (td, MINT_STELEM_VT);
2504                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2505                                         WRITE32 (&td, &size);
2506                                         POP_VT (&td, size);
2507                                         break;
2508                                 }
2509                                 default: {
2510                                         GString *res = g_string_new ("");
2511                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2512                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2513                                         g_string_free (res, TRUE);
2514                                         g_assert (0);
2515                                         break;
2516                                 }
2517                         }
2518                         td.ip += 4;
2519                         td.sp -= 3;
2520                         break;
2521 #if 0
2522                 case CEE_CONV_OVF_U1:
2523
2524                 case CEE_CONV_OVF_I8:
2525
2526 #if SIZEOF_VOID_P == 8
2527                 case CEE_CONV_OVF_U:
2528 #endif
2529                 case CEE_REFANYVAL: ves_abort(); break;
2530 #endif
2531                 case CEE_CKFINITE:
2532                         CHECK_STACK (&td, 1);
2533                         SIMPLE_OP (td, MINT_CKFINITE);
2534                         break;
2535                 case CEE_CONV_OVF_I1:
2536                 case CEE_CONV_OVF_I1_UN:
2537                         CHECK_STACK (&td, 1);
2538                         switch (td.sp [-1].type) {
2539                         case STACK_TYPE_R8:
2540                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2541                                 break;
2542                         case STACK_TYPE_I4:
2543                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2544                                 break;
2545                         case STACK_TYPE_I8:
2546                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2547                                 break;
2548                         default:
2549                                 g_assert_not_reached ();
2550                         }
2551                         ++td.ip;
2552                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2553                         break;
2554                 case CEE_CONV_OVF_U1:
2555                 case CEE_CONV_OVF_U1_UN:
2556                         CHECK_STACK (&td, 1);
2557                         switch (td.sp [-1].type) {
2558                         case STACK_TYPE_R8:
2559                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2560                                 break;
2561                         case STACK_TYPE_I4:
2562                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2563                                 break;
2564                         case STACK_TYPE_I8:
2565                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2566                                 break;
2567                         default:
2568                                 g_assert_not_reached ();
2569                         }
2570                         ++td.ip;
2571                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2572                         break;
2573                 case CEE_CONV_OVF_I2:
2574                 case CEE_CONV_OVF_I2_UN:
2575                         CHECK_STACK (&td, 1);
2576                         switch (td.sp [-1].type) {
2577                         case STACK_TYPE_R8:
2578                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2579                                 break;
2580                         case STACK_TYPE_I4:
2581                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2582                                 break;
2583                         case STACK_TYPE_I8:
2584                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2585                                 break;
2586                         default:
2587                                 g_assert_not_reached ();
2588                         }
2589                         ++td.ip;
2590                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2591                         break;
2592                 case CEE_CONV_OVF_U2_UN:
2593                 case CEE_CONV_OVF_U2:
2594                         CHECK_STACK (&td, 1);
2595                         switch (td.sp [-1].type) {
2596                         case STACK_TYPE_R8:
2597                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2598                                 break;
2599                         case STACK_TYPE_I4:
2600                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2601                                 break;
2602                         case STACK_TYPE_I8:
2603                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2604                                 break;
2605                         default:
2606                                 g_assert_not_reached ();
2607                         }
2608                         ++td.ip;
2609                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2610                         break;
2611 #if SIZEOF_VOID_P == 4
2612                 case CEE_CONV_OVF_I:
2613 #endif
2614                 case CEE_CONV_OVF_I4:
2615                 case CEE_CONV_OVF_I4_UN:
2616                         CHECK_STACK (&td, 1);
2617                         switch (td.sp [-1].type) {
2618                         case STACK_TYPE_R8:
2619                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2620                                 break;
2621                         case STACK_TYPE_I4:
2622                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2623                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2624                                 break;
2625                         case STACK_TYPE_I8:
2626                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2627                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2628                                 else
2629                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2630                                 break;
2631                         default:
2632                                 g_assert_not_reached ();
2633                         }
2634                         ++td.ip;
2635                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2636                         break;
2637 #if SIZEOF_VOID_P == 4
2638                 case CEE_CONV_OVF_U:
2639 #endif
2640                 case CEE_CONV_OVF_U4:
2641                 case CEE_CONV_OVF_U4_UN:
2642                         CHECK_STACK (&td, 1);
2643                         switch (td.sp [-1].type) {
2644                         case STACK_TYPE_R8:
2645                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2646                                 break;
2647                         case STACK_TYPE_I4:
2648                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2649                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2650                                 break;
2651                         case STACK_TYPE_I8:
2652                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2653                                 break;
2654                         default:
2655                                 g_assert_not_reached ();
2656                         }
2657                         ++td.ip;
2658                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2659                         break;
2660 #if SIZEOF_VOID_P == 8
2661                 case CEE_CONV_OVF_I:
2662 #endif
2663                 case CEE_CONV_OVF_I8:
2664                         CHECK_STACK (&td, 1);
2665                         switch (td.sp [-1].type) {
2666                         case STACK_TYPE_R8:
2667                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2668                                 break;
2669                         case STACK_TYPE_I4:
2670                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2671                                 break;
2672                         case STACK_TYPE_I8:
2673                                 break;
2674                         default:
2675                                 g_assert_not_reached ();
2676                         }
2677                         ++td.ip;
2678                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2679                         break;
2680 #if SIZEOF_VOID_P == 8
2681                 case CEE_CONV_OVF_U:
2682 #endif
2683                 case CEE_CONV_OVF_U8:
2684                         CHECK_STACK (&td, 1);
2685                         switch (td.sp [-1].type) {
2686                         case STACK_TYPE_R8:
2687                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2688                                 break;
2689                         case STACK_TYPE_I4:
2690                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2691                                 break;
2692                         case STACK_TYPE_I8:
2693                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2694                                 break;
2695                         default:
2696                                 g_assert_not_reached ();
2697                         }
2698                         ++td.ip;
2699                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2700                         break;
2701                 case CEE_LDTOKEN: {
2702                         int size;
2703                         gpointer handle;
2704                         token = read32 (td.ip + 1);
2705                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2706                                 handle = mono_method_get_wrapper_data (method, token);
2707                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2708                                 if (klass == mono_defaults.typehandle_class)
2709                                         handle = &((MonoClass *) handle)->byval_arg;
2710                         } else {
2711                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2712                         }
2713                         mt = mint_type (&klass->byval_arg);
2714                         g_assert (mt == MINT_TYPE_VT);
2715                         size = mono_class_value_size (klass, NULL);
2716                         g_assert (size == sizeof(gpointer));
2717                         PUSH_VT (&td, sizeof(gpointer));
2718                         ADD_CODE (&td, MINT_LDTOKEN);
2719                         ADD_CODE (&td, get_data_item_index (&td, handle));
2720
2721                         SET_TYPE (td.sp, stack_type [mt], klass);
2722                         td.sp++;
2723                         td.ip += 5;
2724                         break;
2725                 }
2726                 case CEE_ADD_OVF:
2727                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2728                         ++td.ip;
2729                         break;
2730                 case CEE_ADD_OVF_UN:
2731                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2732                         ++td.ip;
2733                         break;
2734                 case CEE_MUL_OVF:
2735                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2736                         ++td.ip;
2737                         break;
2738                 case CEE_MUL_OVF_UN:
2739                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2740                         ++td.ip;
2741                         break;
2742                 case CEE_SUB_OVF:
2743                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2744                         ++td.ip;
2745                         break;
2746                 case CEE_SUB_OVF_UN:
2747                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2748                         ++td.ip;
2749                         break;
2750                 case CEE_ENDFINALLY:
2751                         SIMPLE_OP (td, MINT_ENDFINALLY);
2752                         generating_code = 0;
2753                         break;
2754                 case CEE_LEAVE:
2755                         td.sp = td.stack;
2756                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2757                         td.ip += 5;
2758                         generating_code = 0;
2759                         break;
2760                 case CEE_LEAVE_S:
2761                         td.sp = td.stack;
2762                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2763                         td.ip += 2;
2764                         generating_code = 0;
2765                         break;
2766                 case CEE_UNUSED41:
2767                         ++td.ip;
2768                         switch (*td.ip) {
2769                                 case CEE_MONO_CALLI_EXTRA_ARG:
2770                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2771                                         ADD_CODE (&td, MINT_POP);
2772                                         ADD_CODE (&td, 1);
2773                                         --td.sp;
2774                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2775                                         break;
2776                                 case CEE_MONO_JIT_ICALL_ADDR: {
2777                                         guint32 token;
2778                                         gpointer func;
2779                                         MonoJitICallInfo *info;
2780
2781                                         token = read32 (td.ip + 1);
2782                                         td.ip += 5;
2783                                         func = mono_method_get_wrapper_data (method, token);
2784                                         info = mono_find_jit_icall_by_addr (func);
2785
2786                                         ADD_CODE (&td, MINT_LDFTN);
2787                                         ADD_CODE (&td, get_data_item_index (&td, func));
2788                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2789                                         break;
2790                                 }
2791                                 case CEE_MONO_ICALL: {
2792                                         guint32 token;
2793                                         gpointer func;
2794                                         MonoJitICallInfo *info;
2795
2796                                         token = read32 (td.ip + 1);
2797                                         td.ip += 5;
2798                                         func = mono_method_get_wrapper_data (method, token);
2799                                         info = mono_find_jit_icall_by_addr (func);
2800                                         g_assert (info);
2801
2802                                         CHECK_STACK (&td, info->sig->param_count);
2803                                         switch (info->sig->param_count) {
2804                                         case 0:
2805                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2806                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2807                                                 else
2808                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2809                                                 break;
2810                                         case 1:
2811                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2812                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2813                                                 else
2814                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2815                                                 break;
2816                                         case 2:
2817                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2818                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2819                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2820                                                         else
2821                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2822                                                 } else {
2823                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2824                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2825                                                         else
2826                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2827                                                 }
2828                                                 break;
2829                                         case 3:
2830                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2831                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2832                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2833                                                 else
2834                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2835                                                 break;
2836                                         default:
2837                                                 g_assert_not_reached ();
2838                                         }
2839
2840                                         if (func == mono_ftnptr_to_delegate) {
2841                                                 g_error ("TODO: ?");
2842                                         }
2843                                         ADD_CODE(&td, get_data_item_index (&td, func));
2844                                         td.sp -= info->sig->param_count;
2845
2846                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2847                                                 td.sp ++;
2848                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2849                                         }
2850                                         break;
2851                                 }
2852                         case CEE_MONO_VTADDR: {
2853                                 int size;
2854                                 CHECK_STACK (&td, 1);
2855                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2856                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2857                                 else
2858                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2859                                 size = (size + 7) & ~7;
2860                                 ADD_CODE(&td, MINT_VTRESULT);
2861                                 ADD_CODE(&td, 0);
2862                                 WRITE32(&td, &size);
2863                                 td.vt_sp -= size;
2864                                 ++td.ip;
2865                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2866                                 break;
2867                         }
2868                         case CEE_MONO_LDPTR:
2869                         case CEE_MONO_CLASSCONST:
2870                                 token = read32 (td.ip + 1);
2871                                 td.ip += 5;
2872                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2873                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2874                                 td.sp [0].type = STACK_TYPE_I;
2875                                 ++td.sp;
2876                                 break;
2877                         case CEE_MONO_OBJADDR:
2878                                 CHECK_STACK (&td, 1);
2879                                 ++td.ip;
2880                                 td.sp[-1].type = STACK_TYPE_MP;
2881                                 /* do nothing? */
2882                                 break;
2883                         case CEE_MONO_NEWOBJ:
2884                                 token = read32 (td.ip + 1);
2885                                 td.ip += 5;
2886                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2887                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2888                                 td.sp [0].type = STACK_TYPE_O;
2889                                 ++td.sp;
2890                                 break;
2891                         case CEE_MONO_RETOBJ:
2892                                 CHECK_STACK (&td, 1);
2893                                 token = read32 (td.ip + 1);
2894                                 td.ip += 5;
2895                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2896                                 td.sp--;
2897
2898                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2899
2900                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2901
2902                                 if (td.sp > td.stack)
2903                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2904                                 break;
2905                         case CEE_MONO_LDNATIVEOBJ:
2906                                 token = read32 (td.ip + 1);
2907                                 td.ip += 5;
2908                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2909                                 g_assert(klass->valuetype);
2910                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2911                                 break;
2912                         case CEE_MONO_SAVE_LMF:
2913                         case CEE_MONO_RESTORE_LMF:
2914                         case CEE_MONO_NOT_TAKEN:
2915                                 ++td.ip;
2916                                 break;
2917                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
2918                                 ADD_CODE (&td, MINT_MONO_LDPTR);
2919                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
2920                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
2921                                 ++td.ip;
2922                                 break;
2923                         default:
2924                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2925                         }
2926                         break;
2927 #if 0
2928                 case CEE_PREFIX7:
2929                 case CEE_PREFIX6:
2930                 case CEE_PREFIX5:
2931                 case CEE_PREFIX4:
2932                 case CEE_PREFIX3:
2933                 case CEE_PREFIX2:
2934                 case CEE_PREFIXREF: ves_abort(); break;
2935 #endif
2936                 /*
2937                  * Note: Exceptions thrown when executing a prefixed opcode need
2938                  * to take into account the number of prefix bytes (usually the
2939                  * throw point is just (ip - n_prefix_bytes).
2940                  */
2941                 case CEE_PREFIX1:
2942                         ++td.ip;
2943                         switch (*td.ip) {
2944 #if 0
2945                         case CEE_ARGLIST: ves_abort(); break;
2946 #endif
2947                         case CEE_CEQ:
2948                                 CHECK_STACK(&td, 2);
2949                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2950                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2951                                 else
2952                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
2953                                 --td.sp;
2954                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2955                                 ++td.ip;
2956                                 break;
2957                         case CEE_CGT:
2958                                 CHECK_STACK(&td, 2);
2959                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2960                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2961                                 else
2962                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2963                                 --td.sp;
2964                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2965                                 ++td.ip;
2966                                 break;
2967                         case CEE_CGT_UN:
2968                                 CHECK_STACK(&td, 2);
2969                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2970                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2971                                 else
2972                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2973                                 --td.sp;
2974                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2975                                 ++td.ip;
2976                                 break;
2977                         case CEE_CLT:
2978                                 CHECK_STACK(&td, 2);
2979                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2980                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2981                                 else
2982                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2983                                 --td.sp;
2984                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2985                                 ++td.ip;
2986                                 break;
2987                         case CEE_CLT_UN:
2988                                 CHECK_STACK(&td, 2);
2989                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2990                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2991                                 else
2992                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2993                                 --td.sp;
2994                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2995                                 ++td.ip;
2996                                 break;
2997                         case CEE_LDVIRTFTN: /* fallthrough */
2998                         case CEE_LDFTN: {
2999                                 MonoMethod *m;
3000                                 if (*td.ip == CEE_LDVIRTFTN) {
3001                                         CHECK_STACK (&td, 1);
3002                                         --td.sp;
3003                                 }
3004                                 token = read32 (td.ip + 1);
3005                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3006                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3007                                 else
3008                                         m = mono_get_method_full (image, token, NULL, generic_context);
3009
3010                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3011                                         m = mono_marshal_get_synchronized_wrapper (m);
3012
3013                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3014                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3015                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3016                                 td.ip += 5;
3017                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3018                                 break;
3019                         }
3020                         case CEE_LDARG:
3021                                 load_arg (&td, read16 (td.ip + 1));
3022                                 td.ip += 3;
3023                                 break;
3024                         case CEE_LDARGA: {
3025                                 int n = read16 (td.ip + 1);
3026                                 if (n == 0 && signature->hasthis) {
3027                                         g_error ("LDTHISA: NOPE");
3028                                         ADD_CODE(&td, MINT_LDTHISA);
3029                                 }
3030                                 else {
3031                                         ADD_CODE(&td, MINT_LDARGA);
3032                                         ADD_CODE(&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3033                                 }
3034                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3035                                 td.ip += 3;
3036                                 break;
3037                         }
3038                         case CEE_STARG:
3039                                 store_arg (&td, read16 (td.ip + 1));
3040                                 td.ip += 3;
3041                                 break;
3042                         case CEE_LDLOC:
3043                                 load_local (&td, read16 (td.ip + 1));
3044                                 td.ip += 3;
3045                                 break;
3046                         case CEE_LDLOCA:
3047                                 ADD_CODE(&td, MINT_LDLOCA_S);
3048                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3049                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3050                                 td.ip += 3;
3051                                 break;
3052                         case CEE_STLOC:
3053                                 store_local (&td, read16 (td.ip + 1));
3054                                 td.ip += 3;
3055                                 break;
3056                         case CEE_LOCALLOC:
3057                                 CHECK_STACK (&td, 1);
3058 #if SIZEOF_VOID_P == 8
3059                                 if (td.sp [-1].type == STACK_TYPE_I8)
3060                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3061 #endif
3062                                 ADD_CODE(&td, MINT_LOCALLOC);
3063                                 if (td.sp != td.stack + 1)
3064                                         g_warning("CEE_LOCALLOC: stack not empty");
3065                                 ++td.ip;
3066                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3067                                 break;
3068 #if 0
3069                         case CEE_UNUSED57: ves_abort(); break;
3070                         case CEE_ENDFILTER: ves_abort(); break;
3071 #endif
3072                         case CEE_UNALIGNED_:
3073                                 ++td.ip;
3074                                 /* FIX: should do something? */;
3075                                 break;
3076                         case CEE_VOLATILE_:
3077                                 ++td.ip;
3078                                 /* FIX: should do something? */;
3079                                 break;
3080                         case CEE_TAIL_:
3081                                 ++td.ip;
3082                                 /* FIX: should do something? */;
3083                                 break;
3084                         case CEE_INITOBJ:
3085                                 CHECK_STACK(&td, 1);
3086                                 token = read32 (td.ip + 1);
3087                                 klass = mono_class_get_full (image, token, generic_context);
3088                                 if (klass->valuetype) {
3089                                         ADD_CODE (&td, MINT_INITOBJ);
3090                                         i32 = mono_class_value_size (klass, NULL);
3091                                         WRITE32 (&td, &i32);
3092                                 } else {
3093                                         ADD_CODE (&td, MINT_LDNULL);
3094                                         ADD_CODE (&td, MINT_STIND_REF);
3095                                 }
3096                                 td.ip += 5;
3097                                 --td.sp;
3098                                 break;
3099                         case CEE_CPBLK:
3100                                 CHECK_STACK(&td, 3);
3101                                 /* FIX? convert length to I8? */
3102                                 ADD_CODE(&td, MINT_CPBLK);
3103                                 td.sp -= 3;
3104                                 ++td.ip;
3105                                 break;
3106                         case CEE_READONLY_:
3107                                 readonly = TRUE;
3108                                 td.ip += 1;
3109                                 break;
3110                         case CEE_CONSTRAINED_:
3111                                 token = read32 (td.ip + 1);
3112                                 constrained_class = mono_class_get_full (image, token, generic_context);
3113                                 mono_class_init (constrained_class);
3114                                 td.ip += 5;
3115                                 break;
3116                         case CEE_INITBLK:
3117                                 CHECK_STACK(&td, 3);
3118                                 ADD_CODE(&td, MINT_INITBLK);
3119                                 td.sp -= 3;
3120                                 break;
3121 #if 0
3122                         case CEE_NO_:
3123                                 /* FIXME: implement */
3124                                 ip += 2;
3125                                 break;
3126 #endif
3127                         case CEE_RETHROW:
3128                                 SIMPLE_OP (td, MINT_RETHROW);
3129                                 generating_code = 0;
3130                                 break;
3131                         case CEE_SIZEOF: {
3132                                 gint32 size;
3133                                 token = read32 (td.ip + 1);
3134                                 td.ip += 5;
3135                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3136                                         int align;
3137                                         MonoType *type = mono_type_create_from_typespec (image, token);
3138                                         size = mono_type_size (type, &align);
3139                                 } else {
3140                                         int align;
3141                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
3142                                         mono_class_init (szclass);
3143 #if 0
3144                                         if (!szclass->valuetype)
3145                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3146 #endif
3147                                         size = mono_type_size (&szclass->byval_arg, &align);
3148                                 }
3149                                 ADD_CODE(&td, MINT_LDC_I4);
3150                                 WRITE32(&td, &size);
3151                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3152                                 break;
3153                         }
3154 #if 0
3155                         case CEE_REFANYTYPE: ves_abort(); break;
3156 #endif
3157                         default:
3158                                 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);
3159                         }
3160                         break;
3161                 default:
3162                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3163                 }
3164
3165                 if (td.new_ip - td.new_code != new_in_start_offset)
3166                         td.last_new_ip = td.new_code + new_in_start_offset;
3167                 else if (td.is_bb_start [td.in_start - td.il_code])
3168                         td.is_bb_start [td.ip - td.il_code] = 1;
3169
3170                 td.last_ip = td.in_start;
3171         }
3172
3173         if (mono_interp_traceopt) {
3174                 const guint16 *p = td.new_code;
3175                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3176                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3177                 while (p < td.new_ip) {
3178                         p = mono_interp_dis_mintop(td.new_code, p);
3179                         printf("\n");
3180                 }
3181         }
3182         g_assert (td.max_stack_height <= (header->max_stack + 1));
3183
3184         rtm->clauses = mono_mempool_alloc (domain->mp, header->num_clauses * sizeof(MonoExceptionClause));
3185         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3186         rtm->code = mono_mempool_alloc (domain->mp, (td.new_ip - td.new_code) * sizeof(gushort));
3187         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3188         g_free (td.new_code);
3189         rtm->new_body_start = rtm->code + body_start_offset;
3190         rtm->num_clauses = header->num_clauses;
3191         for (i = 0; i < header->num_clauses; i++) {
3192                 MonoExceptionClause *c = rtm->clauses + i;
3193                 int end_off = c->try_offset + c->try_len;
3194                 c->try_offset = td.in_offsets [c->try_offset];
3195                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3196                 end_off = c->handler_offset + c->handler_len;
3197                 c->handler_offset = td.in_offsets [c->handler_offset];
3198                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3199         }
3200         rtm->vt_stack_size = td.max_vt_sp;
3201         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3202         rtm->data_items = mono_mempool_alloc (domain->mp, td.n_data_items * sizeof (td.data_items [0]));
3203         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3204         g_free (td.in_offsets);
3205         g_free (td.forward_refs);
3206         for (i = 0; i < header->code_size; ++i)
3207                 g_free (td.stack_state [i]);
3208         g_free (td.stack_state);
3209         g_free (td.stack_height);
3210         g_free (td.vt_stack_size);
3211         g_free (td.data_items);
3212         g_free (td.stack);
3213         g_hash_table_destroy (td.data_hash);
3214 }
3215
3216 static mono_mutex_t calc_section;
3217
3218 void
3219 mono_interp_transform_init (void)
3220 {
3221         mono_os_mutex_init_recursive(&calc_section);
3222 }
3223
3224 MonoException *
3225 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3226 {
3227         int i, align, size, offset;
3228         MonoMethod *method = runtime_method->method;
3229         MonoImage *image = method->klass->image;
3230         MonoMethodHeader *header = mono_method_get_header (method);
3231         MonoMethodSignature *signature = mono_method_signature (method);
3232         register const unsigned char *ip, *end;
3233         const MonoOpcode *opcode;
3234         MonoMethod *m;
3235         MonoClass *class;
3236         MonoDomain *domain = mono_domain_get ();
3237         unsigned char *is_bb_start;
3238         int in;
3239         MonoVTable *method_class_vt;
3240         int backwards;
3241         MonoGenericContext *generic_context = NULL;
3242
3243         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3244         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3245         if (!method_class_vt->initialized) {
3246                 jmp_buf env;
3247                 MonoInvocation *last_env_frame = context->env_frame;
3248                 jmp_buf *old_env = context->current_env;
3249
3250                 if (setjmp(env)) {
3251                         MonoException *failed = context->env_frame->ex;
3252                         context->env_frame->ex = NULL;
3253                         context->env_frame = last_env_frame;
3254                         context->current_env = old_env;
3255                         return failed;
3256                 }
3257                 context->env_frame = context->current_frame;
3258                 context->current_env = &env;
3259                 mono_runtime_class_init (method_class_vt);
3260                 context->env_frame = last_env_frame;
3261                 context->current_env = old_env;
3262         }
3263
3264         mono_profiler_method_jit (method); /* sort of... */
3265
3266         if (mono_method_signature (method)->is_inflated)
3267                 generic_context = mono_method_get_context (method);
3268         else {
3269                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3270                 if (generic_container)
3271                         generic_context = &generic_container->context;
3272         }
3273
3274         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3275                 MonoMethod *nm = NULL;
3276                 mono_os_mutex_lock(&calc_section);
3277                 if (runtime_method->transformed) {
3278                         mono_os_mutex_unlock(&calc_section);
3279                         g_error ("FIXME: no jit info?");
3280                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3281                         return NULL;
3282                 }
3283
3284                 /* assumes all internal calls with an array this are built in... */
3285                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3286                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3287                         signature = mono_method_signature (nm);
3288                 } else {
3289                         const char *name = method->name;
3290                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3291                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3292                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3293                                         g_assert (mi);
3294                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3295                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3296                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3297                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3298                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3299                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3300                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3301                                         nm = mono_marshal_get_delegate_end_invoke (method);
3302                                 }
3303                         }
3304                         if (nm == NULL) {
3305                                 runtime_method->code = g_malloc(sizeof(short));
3306                                 runtime_method->code[0] = MINT_CALLRUN;
3307                         }
3308                 }
3309                 if (nm == NULL) {
3310                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3311                         runtime_method->alloca_size = runtime_method->stack_size;
3312                         runtime_method->transformed = TRUE;
3313                         mono_os_mutex_unlock(&calc_section);
3314                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3315                         return NULL;
3316                 }
3317                 method = nm;
3318                 header = mono_method_get_header (nm);
3319                 mono_os_mutex_unlock(&calc_section);
3320         }
3321         g_assert ((signature->param_count + signature->hasthis) < 1000);
3322         g_assert (header->max_stack < 10000);
3323         /* intern the strings in the method. */
3324         ip = header->code;
3325         end = ip + header->code_size;
3326
3327         is_bb_start = g_malloc0(header->code_size);
3328         is_bb_start [0] = 1;
3329         while (ip < end) {
3330                 in = *ip;
3331                 if (in == 0xfe) {
3332                         ip++;
3333                         in = *ip + 256;
3334                 }
3335                 else if (in == 0xf0) {
3336                         ip++;
3337                         in = *ip + MONO_CEE_MONO_ICALL;
3338                 }
3339                 opcode = &mono_opcodes [in];
3340                 switch (opcode->argument) {
3341                 case MonoInlineNone:
3342                         ++ip;
3343                         break;
3344                 case MonoInlineString:
3345                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3346                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3347                         ip += 5;
3348                         break;
3349                 case MonoInlineType:
3350                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3351                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
3352                                 mono_class_init (class);
3353                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3354 #if 0
3355                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3356                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3357                                         mono_class_vtable (domain, class);
3358 #endif
3359                         }
3360                         ip += 5;
3361                         break;
3362                 case MonoInlineMethod:
3363                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3364                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3365                                 if (m == NULL) {
3366                                         g_free (is_bb_start);
3367                                         g_error ("FIXME: where to get method and class string?");
3368                                         return NULL;
3369                                         // return mono_get_exception_missing_method ();
3370                                 }
3371                                 mono_class_init (m->klass);
3372                                 if (!mono_class_is_interface (m->klass))
3373                                         mono_class_vtable (domain, m->klass);
3374                         }
3375                         ip += 5;
3376                         break;
3377                 case MonoInlineField:
3378                 case MonoInlineSig:
3379                 case MonoInlineI:
3380                 case MonoInlineTok:
3381                 case MonoShortInlineR:
3382                         ip += 5;
3383                         break;
3384                 case MonoInlineBrTarget:
3385                         offset = read32 (ip + 1);
3386                         ip += 5;
3387                         backwards = offset < 0;
3388                         offset += ip - header->code;
3389                         g_assert (offset >= 0 && offset < header->code_size);
3390                         is_bb_start [offset] |= backwards ? 2 : 1;
3391                         break;
3392                 case MonoShortInlineBrTarget:
3393                         offset = ((gint8 *)ip) [1];
3394                         ip += 2;
3395                         backwards = offset < 0;
3396                         offset += ip - header->code;
3397                         g_assert (offset >= 0 && offset < header->code_size);
3398                         is_bb_start [offset] |= backwards ? 2 : 1;
3399                         break;
3400                 case MonoInlineVar:
3401                         ip += 3;
3402                         break;
3403                 case MonoShortInlineVar:
3404                 case MonoShortInlineI:
3405                         ip += 2;
3406                         break;
3407                 case MonoInlineSwitch: {
3408                         guint32 n;
3409                         const unsigned char *next_ip;
3410                         ++ip;
3411                         n = read32 (ip);
3412                         ip += 4;
3413                         next_ip = ip + 4 * n;
3414                         for (i = 0; i < n; i++) {
3415                                 offset = read32 (ip);
3416                                 backwards = offset < 0;
3417                                 offset += next_ip - header->code;
3418                                 g_assert (offset >= 0 && offset < header->code_size);
3419                                 is_bb_start [offset] |= backwards ? 2 : 1;
3420                                 ip += 4;
3421                         }
3422                         break;
3423                 }
3424                 case MonoInlineR:
3425                 case MonoInlineI8:
3426                         ip += 9;
3427                         break;
3428                 default:
3429                         g_assert_not_reached ();
3430                 }
3431         }
3432         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3433
3434         /* the rest needs to be locked so it is only done once */
3435         mono_os_mutex_lock(&calc_section);
3436         if (runtime_method->transformed) {
3437                 mono_os_mutex_unlock(&calc_section);
3438                 g_free (is_bb_start);
3439                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3440                 return NULL;
3441         }
3442
3443         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3444         runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3445         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3446         offset = 0;
3447         for (i = 0; i < header->num_locals; ++i) {
3448                 size = mono_type_size (header->locals [i], &align);
3449                 offset += align - 1;
3450                 offset &= ~(align - 1);
3451                 runtime_method->local_offsets [i] = offset;
3452                 offset += size;
3453         }
3454         offset = (offset + 7) & ~7;
3455         runtime_method->locals_size = offset;
3456         g_assert (runtime_method->locals_size < 65536);
3457         offset = 0;
3458         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3459
3460         if (signature->hasthis) {
3461                 g_assert (!signature->pinvoke);
3462                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3463                 offset += align - 1;
3464                 offset &= ~(align - 1);
3465                 runtime_method->arg_offsets [0] = offset;
3466                 offset += size;
3467         }
3468
3469         for (i = 0; i < signature->param_count; ++i) {
3470                 if (signature->pinvoke) {
3471                         guint32 dummy;
3472                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3473                         align = 8;
3474                 }
3475                 else
3476                         size = mono_type_stack_size (signature->params [i], &align);
3477                 offset += align - 1;
3478                 offset &= ~(align - 1);
3479                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3480                 offset += size;
3481         }
3482         offset = (offset + 7) & ~7;
3483         runtime_method->args_size = offset;
3484         g_assert (runtime_method->args_size < 10000);
3485
3486         generate (method, runtime_method, is_bb_start, generic_context);
3487
3488         g_free (is_bb_start);
3489
3490         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3491         runtime_method->transformed = TRUE;
3492         mono_os_mutex_unlock(&calc_section);
3493
3494         return NULL;
3495 }
3496