mono/mini/interp/transform.c

   1 /**
   2  * \file
   3  * transform CIL into different opcodes for more
   4  * efficient interpretation
   5  *
   6  * Written by Bernie Solomon (bernard@ugsolutions.com)
   7  * Copyright (c) 2004.
   8  */
   9
  10 #include <string.h>
  11 #include <mono/metadata/appdomain.h>
  12 #include <mono/metadata/debug-helpers.h>
  13 #include <mono/metadata/exception.h>
  14 #include <mono/metadata/mono-endian.h>
  15 #include <mono/metadata/marshal.h>
  16 #include <mono/metadata/profiler-private.h>
  17 #include <mono/metadata/tabledefs.h>
  18
  19 #include <mono/mini/mini.h>
  20
  21 #include "mintops.h"
  22 #include "interp-internals.h"
  23 #include "interp.h"
  24
  25 // TODO: export from marshal.c
  26 MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
  27
  28 #define DEBUG 0
  29
  30 typedef struct
  31 {
  32         MonoClass *klass;
  33         unsigned char type;
  34         unsigned char flags;
  35 } StackInfo;
  36
  37 typedef struct
  38 {
  39         MonoMethod *method;
  40         MonoMethodHeader *header;
  41         RuntimeMethod *rtm;
  42         const unsigned char *il_code;
  43         const unsigned char *ip;
  44         const unsigned char *last_ip;
  45         const unsigned char *in_start;
  46         int code_size;
  47         int *in_offsets;
  48         int *forward_refs;
  49         StackInfo **stack_state;
  50         int *stack_height;
  51         int *vt_stack_size;
  52         unsigned char *is_bb_start;
  53         unsigned short *new_code;
  54         unsigned short *new_code_end;
  55         unsigned short *new_ip;
  56         unsigned short *last_new_ip;
  57         unsigned int max_code_size;
  58         StackInfo *stack;
  59         StackInfo *sp;
  60         unsigned int max_stack_height;
  61         unsigned int vt_sp;
  62         unsigned int max_vt_sp;
  63         int n_data_items;
  64         int max_data_items;
  65         void **data_items;
  66         GHashTable *data_hash;
  67 } TransformData;
  68
  69 #define MINT_TYPE_I1 0
  70 #define MINT_TYPE_U1 1
  71 #define MINT_TYPE_I2 2
  72 #define MINT_TYPE_U2 3
  73 #define MINT_TYPE_I4 4
  74 #define MINT_TYPE_I8 5
  75 #define MINT_TYPE_R4 6
  76 #define MINT_TYPE_R8 7
  77 #define MINT_TYPE_O  8
  78 #define MINT_TYPE_P  9
  79 #define MINT_TYPE_VT 10
  80
  81 #define STACK_TYPE_I4 0
  82 #define STACK_TYPE_I8 1
  83 #define STACK_TYPE_R8 2
  84 #define STACK_TYPE_O  3
  85 #define STACK_TYPE_VT 4
  86 #define STACK_TYPE_MP 5
  87 #define STACK_TYPE_F  6
  88
  89 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
  90
  91 #if SIZEOF_VOID_P == 8
  92 #define STACK_TYPE_I STACK_TYPE_I8
  93 #else
  94 #define STACK_TYPE_I STACK_TYPE_I4
  95 #endif
  96
  97 static int stack_type [] = {
  98         STACK_TYPE_I4, /*I1*/
  99         STACK_TYPE_I4, /*U1*/
 100         STACK_TYPE_I4, /*I2*/
 101         STACK_TYPE_I4, /*U2*/
 102         STACK_TYPE_I4, /*I4*/
 103         STACK_TYPE_I8, /*I8*/
 104         STACK_TYPE_R8, /*R4*/
 105         STACK_TYPE_R8, /*R8*/
 106         STACK_TYPE_O,  /*O*/
 107         STACK_TYPE_MP, /*P*/
 108         STACK_TYPE_VT
 109 };
 110
 111 static void
 112 grow_code (TransformData *td)
 113 {
 114         unsigned int old_ip_offset = td->new_ip - td->new_code;
 115         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 116         g_assert (old_ip_offset <= td->max_code_size);
 117         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 118         td->new_code_end = td->new_code + td->max_code_size;
 119         td->new_ip = td->new_code + old_ip_offset;
 120         td->last_new_ip = td->new_code + old_last_ip_offset;
 121 }
 122
 123 #define ENSURE_CODE(td, n) \
 124         do { \
 125                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 126                         grow_code (td); \
 127         } while (0)
 128
 129 #define ADD_CODE(td, n) \
 130         do { \
 131                 if ((td)->new_ip == (td)->new_code_end) \
 132                         grow_code (td); \
 133                 *(td)->new_ip++ = (n); \
 134         } while (0)
 135
 136 #define CHECK_STACK(td, n) \
 137         do { \
 138                 int stack_size = (td)->sp - (td)->stack; \
 139                 if (stack_size < (n)) \
 140                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 141                                 (td)->method->klass->name, (td)->method->name, \
 142                                 stack_size, n, (td)->ip - (td)->il_code); \
 143         } while (0)
 144
 145 #define ENSURE_I4(td, sp_off) \
 146         do { \
 147                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 148                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 149         } while (0)
 150
 151 static void
 152 handle_branch(TransformData *td, int short_op, int long_op, int offset)
 153 {
 154         int shorten_branch = 0;
 155         int target = td->ip + offset - td->il_code;
 156         if (target < 0 || target >= td->code_size)
 157                 g_assert_not_reached ();
 158         if (offset > 0 && td->stack_height [target] < 0) {
 159                 td->stack_height [target] = td->sp - td->stack;
 160                 if (td->stack_height [target] > 0)
 161                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 162                 td->vt_stack_size [target] = td->vt_sp;
 163         }
 164         if (offset < 0) {
 165                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 166                 if (offset >= -32768) {
 167                         shorten_branch = 1;
 168                 }
 169         } else {
 170                 int prev = td->forward_refs [target];
 171                 td->forward_refs [td->ip - td->il_code] = prev;
 172                 td->forward_refs [target] = td->ip - td->il_code;
 173                 offset = 0;
 174                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 175                         shorten_branch = 1;
 176         }
 177         if (shorten_branch) {
 178                 ADD_CODE(td, short_op);
 179                 ADD_CODE(td, offset);
 180         } else {
 181                 ADD_CODE(td, long_op);
 182                 ADD_CODE(td, * (unsigned short *)(&offset));
 183                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 184         }
 185 }
 186
 187 static void
 188 one_arg_branch(TransformData *td, int mint_op, int offset)
 189 {
 190         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 191         int long_op = mint_op + type - STACK_TYPE_I4;
 192         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 193         CHECK_STACK(td, 1);
 194         --td->sp;
 195         handle_branch (td, short_op, long_op, offset);
 196 }
 197
 198 static void
 199 two_arg_branch(TransformData *td, int mint_op, int offset)
 200 {
 201         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 202         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 203         int long_op = mint_op + type1 - STACK_TYPE_I4;
 204         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 205         CHECK_STACK(td, 2);
 206         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 207                 ADD_CODE(td, MINT_CONV_I8_I4);
 208                 td->in_offsets [td->ip - td->il_code]++;
 209         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 210                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 211                 td->in_offsets [td->ip - td->il_code]++;
 212         } else if (type1 != type2) {
 213                 g_warning("%s.%s: branch type mismatch %d %d",
 214                         td->method->klass->name, td->method->name,
 215                         td->sp [-1].type, td->sp [-2].type);
 216         }
 217         td->sp -= 2;
 218         handle_branch (td, short_op, long_op, offset);
 219 }
 220
 221 static void
 222 unary_arith_op(TransformData *td, int mint_op)
 223 {
 224         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 225         CHECK_STACK(td, 1);
 226         ADD_CODE(td, op);
 227 }
 228
 229 static void
 230 binary_arith_op(TransformData *td, int mint_op)
 231 {
 232         int type1 = td->sp [-2].type;
 233         int type2 = td->sp [-1].type;
 234         int op;
 235 #if SIZEOF_VOID_P == 8
 236         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 237                 ADD_CODE(td, MINT_CONV_I8_I4);
 238                 type2 = STACK_TYPE_I8;
 239         }
 240         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 241                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 242                 type1 = STACK_TYPE_I8;
 243                 td->sp [-2].type = STACK_TYPE_I8;
 244         }
 245 #endif
 246         if (type1 == STACK_TYPE_MP)
 247                 type1 = STACK_TYPE_I;
 248         if (type2 == STACK_TYPE_MP)
 249                 type2 = STACK_TYPE_I;
 250         if (type1 != type2) {
 251                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 252                         td->method->klass->name, td->method->name,
 253                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 254         }
 255         op = mint_op + type1 - STACK_TYPE_I4;
 256         CHECK_STACK(td, 2);
 257         ADD_CODE(td, op);
 258         --td->sp;
 259 }
 260
 261 static void
 262 binary_int_op(TransformData *td, int mint_op)
 263 {
 264         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 265         CHECK_STACK(td, 2);
 266         if (td->sp [-1].type != td->sp [-2].type)
 267                 g_warning("%s.%s: int type mismatch", td->method->klass->name, td->method->name);
 268         ADD_CODE(td, op);
 269         --td->sp;
 270 }
 271
 272 static void
 273 shift_op(TransformData *td, int mint_op)
 274 {
 275         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 276         CHECK_STACK(td, 2);
 277         if (td->sp [-1].type != STACK_TYPE_I4) {
 278                 g_warning("%s.%s: shift type mismatch %d",
 279                         td->method->klass->name, td->method->name,
 280                         td->sp [-2].type);
 281         }
 282         ADD_CODE(td, op);
 283         --td->sp;
 284 }
 285
 286 static int
 287 mint_type(MonoType *type)
 288 {
 289         if (type->byref)
 290                 return MINT_TYPE_P;
 291 enum_type:
 292         switch (type->type) {
 293         case MONO_TYPE_I1:
 294                 return MINT_TYPE_I1;
 295         case MONO_TYPE_U1:
 296         case MONO_TYPE_BOOLEAN:
 297                 return MINT_TYPE_U1;
 298         case MONO_TYPE_I2:
 299                 return MINT_TYPE_I2;
 300         case MONO_TYPE_U2:
 301         case MONO_TYPE_CHAR:
 302                 return MINT_TYPE_U2;
 303         case MONO_TYPE_I4:
 304         case MONO_TYPE_U4:
 305                 return MINT_TYPE_I4;
 306         case MONO_TYPE_I:
 307         case MONO_TYPE_U:
 308 #if SIZEOF_VOID_P == 4
 309                 return MINT_TYPE_I4;
 310 #else
 311                 return MINT_TYPE_I8;
 312 #endif
 313         case MONO_TYPE_PTR:
 314                 return MINT_TYPE_P;
 315         case MONO_TYPE_R4:
 316                 return MINT_TYPE_R4;
 317         case MONO_TYPE_I8:
 318         case MONO_TYPE_U8:
 319                 return MINT_TYPE_I8;
 320         case MONO_TYPE_R8:
 321                 return MINT_TYPE_R8;
 322         case MONO_TYPE_STRING:
 323         case MONO_TYPE_SZARRAY:
 324         case MONO_TYPE_CLASS:
 325         case MONO_TYPE_OBJECT:
 326         case MONO_TYPE_ARRAY:
 327                 return MINT_TYPE_O;
 328         case MONO_TYPE_VALUETYPE:
 329                 if (type->data.klass->enumtype) {
 330                         type = mono_class_enum_basetype (type->data.klass);
 331                         goto enum_type;
 332                 } else
 333                         return MINT_TYPE_VT;
 334         case MONO_TYPE_GENERICINST:
 335                 type = &type->data.generic_class->container_class->byval_arg;
 336                 goto enum_type;
 337         default:
 338                 g_warning ("got type 0x%02x", type->type);
 339                 g_assert_not_reached ();
 340         }
 341         return -1;
 342 }
 343
 344 static int
 345 can_store (int stack_type, int var_type)
 346 {
 347         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 348                 stack_type = STACK_TYPE_I;
 349         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 350                 var_type = STACK_TYPE_I;
 351         return stack_type == var_type;
 352 }
 353
 354 #define SET_SIMPLE_TYPE(s, ty) \
 355         do { \
 356                 (s)->type = (ty); \
 357                 (s)->flags = 0; \
 358                 (s)->klass = NULL; \
 359         } while (0)
 360
 361 #define SET_TYPE(s, ty, k) \
 362         do { \
 363                 (s)->type = (ty); \
 364                 (s)->flags = 0; \
 365                 (s)->klass = k; \
 366         } while (0)
 367
 368 #define PUSH_SIMPLE_TYPE(td, ty) \
 369         do { \
 370                 int sp_height; \
 371                 (td)->sp++; \
 372                 sp_height = (td)->sp - (td)->stack; \
 373                 if (sp_height > (td)->max_stack_height) \
 374                         (td)->max_stack_height = sp_height; \
 375                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 376         } while (0)
 377
 378 #define PUSH_TYPE(td, ty, k) \
 379         do { \
 380                 int sp_height; \
 381                 (td)->sp++; \
 382                 sp_height = (td)->sp - (td)->stack; \
 383                 if (sp_height > (td)->max_stack_height) \
 384                         (td)->max_stack_height = sp_height; \
 385                 SET_TYPE((td)->sp - 1, ty, k); \
 386         } while (0)
 387
 388 #define PUSH_VT(td, size) \
 389         do { \
 390                 (td)->vt_sp += ((size) + 7) & ~7; \
 391                 if ((td)->vt_sp > (td)->max_vt_sp) \
 392                         (td)->max_vt_sp = (td)->vt_sp; \
 393         } while (0)
 394
 395 #define POP_VT(td, size) \
 396         do { \
 397                 (td)->vt_sp -= ((size) + 7) & ~7; \
 398         } while (0)
 399
 400 #if NO_UNALIGNED_ACCESS
 401 #define WRITE32(td, v) \
 402         do { \
 403                 ENSURE_CODE(td, 2); \
 404                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 405                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 406                 (td)->new_ip += 2; \
 407         } while (0)
 408
 409 #define WRITE64(td, v) \
 410         do { \
 411                 ENSURE_CODE(td, 4); \
 412                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 413                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 414                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 415                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 416                 (td)->new_ip += 4; \
 417         } while (0)
 418 #else
 419 #define WRITE32(td, v) \
 420         do { \
 421                 ENSURE_CODE(td, 2); \
 422                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 423                 (td)->new_ip += 2; \
 424         } while (0)
 425
 426 #define WRITE64(td, v) \
 427         do { \
 428                 ENSURE_CODE(td, 4); \
 429                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 430                 (td)->new_ip += 4; \
 431         } while (0)
 432
 433 #endif
 434
 435 static void
 436 load_arg(TransformData *td, int n)
 437 {
 438         int mt;
 439         MonoClass *klass = NULL;
 440         MonoType *type;
 441
 442         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 443         if (hasthis && n == 0)
 444                 type = &td->method->klass->byval_arg;
 445         else
 446                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 447
 448         mt = mint_type (type);
 449         if (mt == MINT_TYPE_VT) {
 450                 gint32 size;
 451                 klass = mono_class_from_mono_type (type);
 452                 if (mono_method_signature (td->method)->pinvoke)
 453                         size = mono_class_native_size (klass, NULL);
 454                 else
 455                         size = mono_class_value_size (klass, NULL);
 456
 457                 if (hasthis && n == 0) {
 458                         mt = MINT_TYPE_P;
 459                         ADD_CODE (td, MINT_LDARG_P);
 460                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 461                         klass = NULL;
 462                 } else {
 463                         PUSH_VT (td, size);
 464                         ADD_CODE (td, MINT_LDARG_VT);
 465                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 466                         WRITE32 (td, &size);
 467                 }
 468         } else {
 469                 if (hasthis && n == 0) {
 470                         mt = MINT_TYPE_P;
 471                         ADD_CODE (td, MINT_LDARG_P);
 472                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 473                         klass = NULL;
 474                 } else {
 475                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 476                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 477                         if (mt == MINT_TYPE_O)
 478                                 klass = mono_class_from_mono_type (type);
 479                 }
 480         }
 481         PUSH_TYPE(td, stack_type[mt], klass);
 482 }
 483
 484 static void
 485 store_arg(TransformData *td, int n)
 486 {
 487         int mt;
 488         CHECK_STACK (td, 1);
 489         MonoType *type;
 490
 491         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 492         if (hasthis && n == 0)
 493                 type = &td->method->klass->byval_arg;
 494         else
 495                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 496
 497         mt = mint_type (type);
 498         if (mt == MINT_TYPE_VT) {
 499                 gint32 size;
 500                 MonoClass *klass = mono_class_from_mono_type (type);
 501                 if (mono_method_signature (td->method)->pinvoke)
 502                         size = mono_class_native_size (klass, NULL);
 503                 else
 504                         size = mono_class_value_size (klass, NULL);
 505                 ADD_CODE(td, MINT_STARG_VT);
 506                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 507                 WRITE32(td, &size);
 508                 if (td->sp [-1].type == STACK_TYPE_VT)
 509                         POP_VT(td, size);
 510         } else {
 511                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 512                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 513         }
 514         --td->sp;
 515 }
 516
 517 static void
 518 store_inarg(TransformData *td, int n)
 519 {
 520         MonoType *type;
 521         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 522         if (hasthis && n == 0)
 523                 type = &td->method->klass->byval_arg;
 524         else
 525                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 526
 527         int mt = mint_type (type);
 528         if (hasthis && n == 0) {
 529                 ADD_CODE (td, MINT_STINARG_P);
 530                 ADD_CODE (td, n);
 531                 return;
 532         }
 533         if (mt == MINT_TYPE_VT) {
 534                 MonoClass *klass = mono_class_from_mono_type (type);
 535                 gint32 size;
 536                 if (mono_method_signature (td->method)->pinvoke)
 537                         size = mono_class_native_size (klass, NULL);
 538                 else
 539                         size = mono_class_value_size (klass, NULL);
 540                 ADD_CODE(td, MINT_STINARG_VT);
 541                 ADD_CODE(td, n);
 542                 WRITE32(td, &size);
 543         } else {
 544                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 545                 ADD_CODE(td, n);
 546         }
 547 }
 548
 549 static void
 550 load_local(TransformData *td, int n)
 551 {
 552         MonoType *type = td->header->locals [n];
 553         int mt = mint_type (type);
 554         int offset = td->rtm->local_offsets [n];
 555         MonoClass *klass = NULL;
 556         if (mt == MINT_TYPE_VT) {
 557                 klass = mono_class_from_mono_type (type);
 558                 gint32 size = mono_class_value_size (klass, NULL);
 559                 PUSH_VT(td, size);
 560                 ADD_CODE(td, MINT_LDLOC_VT);
 561                 ADD_CODE(td, offset); /*FIX for large offset */
 562                 WRITE32(td, &size);
 563         } else {
 564                 g_assert (mt < MINT_TYPE_VT);
 565                 if (mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 566                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 567                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 568                 } else if (mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 569                         td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 570                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 571                 } else {
 572                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 573                         ADD_CODE(td, offset); /*FIX for large offset */
 574                 }
 575                 if (mt == MINT_TYPE_O)
 576                         klass = mono_class_from_mono_type (type);
 577         }
 578         PUSH_TYPE(td, stack_type[mt], klass);
 579 }
 580
 581 static void
 582 store_local(TransformData *td, int n)
 583 {
 584         MonoType *type = td->header->locals [n];
 585         int mt = mint_type (type);
 586         int offset = td->rtm->local_offsets [n];
 587         CHECK_STACK (td, 1);
 588 #if SIZEOF_VOID_P == 8
 589         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 590                 ADD_CODE(td, MINT_CONV_I8_I4);
 591                 td->sp [-1].type = STACK_TYPE_I8;
 592         }
 593 #endif
 594         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 595                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 596                         td->method->klass->name, td->method->name,
 597                         stack_type [mt], td->sp [-1].type);
 598         }
 599         if (mt == MINT_TYPE_VT) {
 600                 MonoClass *klass = mono_class_from_mono_type (type);
 601                 gint32 size = mono_class_value_size (klass, NULL);
 602                 ADD_CODE(td, MINT_STLOC_VT);
 603                 ADD_CODE(td, offset); /*FIX for large offset */
 604                 WRITE32(td, &size);
 605                 if (td->sp [-1].type == STACK_TYPE_VT)
 606                         POP_VT(td, size);
 607         } else {
 608                 g_assert (mt < MINT_TYPE_VT);
 609                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 610                 ADD_CODE(td, offset); /*FIX for large offset */
 611         }
 612         --td->sp;
 613 }
 614
 615 #define SIMPLE_OP(td, op) \
 616         do { \
 617                 ADD_CODE(&td, op); \
 618                 ++td.ip; \
 619         } while (0)
 620
 621 static guint16
 622 get_data_item_index (TransformData *td, void *ptr)
 623 {
 624         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 625         guint index;
 626         if (p != NULL)
 627                 return GPOINTER_TO_UINT (p) - 1;
 628         if (td->max_data_items == td->n_data_items) {
 629                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 630                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 631         }
 632         index = td->n_data_items;
 633         td->data_items [index] = ptr;
 634         ++td->n_data_items;
 635         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 636         return index;
 637 }
 638
 639 static gboolean
 640 jit_call_supported (MonoMethod *method, MonoMethodSignature *sig)
 641 {
 642         GSList *l;
 643
 644         if (sig->param_count > 6)
 645                 return FALSE;
 646         if (sig->pinvoke)
 647                 return FALSE;
 648         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 649                 return FALSE;
 650         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
 651                 return FALSE;
 652         if (method->is_inflated)
 653                 return FALSE;
 654         if (method->string_ctor)
 655                 return FALSE;
 656
 657         for (l = jit_classes; l; l = l->next) {
 658                 char *class_name = l->data;
 659                 // FIXME: Namespaces
 660                 if (!strcmp (method->klass->name, class_name))
 661                         return TRUE;
 662         }
 663
 664         //return TRUE;
 665         return FALSE;
 666 }
 667
 668 static void
 669 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)
 670 {
 671         MonoImage *image = method->klass->image;
 672         MonoMethodSignature *csignature;
 673         MonoError error;
 674         int virtual = *td->ip == CEE_CALLVIRT;
 675         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 676         int i;
 677         guint32 vt_stack_used = 0;
 678         guint32 vt_res_size = 0;
 679         int op = -1;
 680         int native = 0;
 681         int is_void = 0;
 682
 683         guint32 token = read32 (td->ip + 1);
 684
 685         if (target_method == NULL) {
 686                 if (calli) {
 687                         CHECK_STACK(td, 1);
 688                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 689                         --td->sp;
 690                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 691                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 692                         else
 693                                 csignature = mono_metadata_parse_signature (image, token);
 694
 695                         if (generic_context) {
 696                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 697                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 698                         }
 699
 700                         target_method = NULL;
 701                 } else {
 702                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 703                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 704                         else
 705                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 706                         csignature = mono_method_signature (target_method);
 707                         if (target_method->klass == mono_defaults.string_class) {
 708                                 if (target_method->name [0] == 'g') {
 709                                         if (strcmp (target_method->name, "get_Chars") == 0)
 710                                                 op = MINT_GETCHR;
 711                                         else if (strcmp (target_method->name, "get_Length") == 0)
 712                                                 op = MINT_STRLEN;
 713                                 }
 714                         } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 715                                 if (!strcmp (target_method->name, "get_Rank")) {
 716                                         op = MINT_ARRAY_RANK;
 717                                 } else if (!strcmp (target_method->name, "get_Length")) {
 718                                         op = MINT_LDLEN;
 719                                 } else if (!strcmp (target_method->name, "Address")) {
 720                                         op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 721                                 }
 722                         } else if (target_method && generic_context) {
 723                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 724                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 725                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 726                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 727                         }
 728                 }
 729         } else {
 730                 csignature = mono_method_signature (target_method);
 731         }
 732
 733         if (constrained_class) {
 734                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 735                         /* Use the corresponding method from the base type to avoid boxing */
 736                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 737                         g_assert (base_type);
 738                         constrained_class = mono_class_from_mono_type (base_type);
 739                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 740                         g_assert (target_method);
 741                 }
 742         }
 743
 744         if (constrained_class) {
 745                 mono_class_setup_vtable (constrained_class);
 746 #if DEBUG_INTERP
 747                 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);
 748 #endif
 749                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 750 #if DEBUG_INTERP
 751                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 752 #endif
 753                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 754                 mono_class_setup_vtable (target_method->klass);
 755
 756                 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)) {
 757                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 758                                 /* managed pointer on the stack, we need to deref that puppy */
 759                                 ADD_CODE (td, MINT_LDIND_I);
 760                                 ADD_CODE (td, csignature->param_count);
 761                         }
 762                         ADD_CODE (td, MINT_BOX);
 763                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 764                         ADD_CODE (td, csignature->param_count);
 765                 } else if (!constrained_class->valuetype) {
 766                         /* managed pointer on the stack, we need to deref that puppy */
 767                         ADD_CODE (td, MINT_LDIND_I);
 768                         ADD_CODE (td, csignature->param_count);
 769                 } else {
 770                         if (target_method->klass->valuetype) {
 771                                 /* Own method */
 772                         } else {
 773                                 /* Interface method */
 774                                 int ioffset, slot;
 775
 776                                 mono_class_setup_vtable (constrained_class);
 777                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 778                                 if (ioffset == -1)
 779                                         g_error ("type load error: constrained_class");
 780                                 slot = mono_method_get_vtable_slot (target_method);
 781                                 if (slot == -1)
 782                                         g_error ("type load error: target_method->klass");
 783                                 target_method = constrained_class->vtable [ioffset + slot];
 784
 785                                 if (target_method->klass == mono_defaults.enum_class) {
 786                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 787                                                 /* managed pointer on the stack, we need to deref that puppy */
 788                                                 ADD_CODE (td, MINT_LDIND_I);
 789                                                 ADD_CODE (td, csignature->param_count);
 790                                         }
 791                                         ADD_CODE (td, MINT_BOX);
 792                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 793                                         ADD_CODE (td, csignature->param_count);
 794                                 }
 795                         }
 796                         virtual = FALSE;
 797                 }
 798         }
 799
 800         if (target_method)
 801                 mono_class_init (target_method->klass);
 802
 803         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 804         if (!calli && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 805                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 806                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
 807                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 808                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 809
 810                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 811                         int offset;
 812                         if (mono_interp_traceopt)
 813                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 814
 815                         for (i = csignature->param_count - 1 + !!csignature->hasthis; i >= 0; --i)
 816                                 store_arg (td, i);
 817
 818                         ADD_CODE(td, MINT_BR_S);
 819                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 820                         ADD_CODE(td, offset);
 821                         if (!is_bb_start [td->ip + 5 - td->il_code])
 822                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 823                         td->ip += 5;
 824                         return;
 825                 } else {
 826                         /* mheader might not exist if this is a delegate invoc, etc */
 827                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 828                                 if (mono_interp_traceopt)
 829                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 830                                 for (i = 0; i < csignature->param_count; i++)
 831                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 832                                         ADD_CODE (td, 0);
 833                                 if (csignature->hasthis) {
 834                                         if (virtual)
 835                                                 ADD_CODE(td, MINT_CKNULL);
 836                                         ADD_CODE (td, MINT_POP);
 837                                         ADD_CODE (td, 0);
 838                                 }
 839                                 td->sp -= csignature->param_count + csignature->hasthis;
 840                                 td->ip += 5;
 841                                 return;
 842                         }
 843                 }
 844         }
 845         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 846                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 847                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 848                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 849                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 850         }
 851         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 852         td->sp -= csignature->param_count + !!csignature->hasthis;
 853         for (i = 0; i < csignature->param_count; ++i) {
 854                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 855                         gint32 size;
 856                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 857                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 858                                 size = mono_class_native_size (klass, NULL);
 859                         else
 860                                 size = mono_class_value_size (klass, NULL);
 861                         size = (size + 7) & ~7;
 862                         vt_stack_used += size;
 863                 }
 864         }
 865
 866         /* need to handle typedbyref ... */
 867         if (csignature->ret->type != MONO_TYPE_VOID) {
 868                 int mt = mint_type(csignature->ret);
 869                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 870                 if (mt == MINT_TYPE_VT) {
 871                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 872                                 vt_res_size = mono_class_native_size (klass, NULL);
 873                         else
 874                                 vt_res_size = mono_class_value_size (klass, NULL);
 875                         PUSH_VT(td, vt_res_size);
 876                 }
 877                 PUSH_TYPE(td, stack_type[mt], klass);
 878         } else
 879                 is_void = TRUE;
 880
 881         if (op >= 0) {
 882                 ADD_CODE (td, op);
 883 #if SIZEOF_VOID_P == 8
 884                 if (op == MINT_LDLEN)
 885                         ADD_CODE (td, MINT_CONV_I4_I8);
 886 #endif
 887                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 888                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 889                         ADD_CODE (td, 1 + target_method->klass->rank);
 890                 }
 891         } else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
 892                 ADD_CODE(td, MINT_JIT_CALL);
 893                 ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 894                 mono_error_assert_ok (&error);
 895         } else {
 896                 if (calli)
 897                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 898                 else if (virtual)
 899                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 900                 else
 901                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 902
 903                 if (calli) {
 904                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 905                 } else {
 906                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 907                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 908                 }
 909         }
 910         td->ip += 5;
 911         if (vt_stack_used != 0 || vt_res_size != 0) {
 912                 ADD_CODE(td, MINT_VTRESULT);
 913                 ADD_CODE(td, vt_res_size);
 914                 WRITE32(td, &vt_stack_used);
 915                 td->vt_sp -= vt_stack_used;
 916         }
 917 }
 918
 919 static MonoClassField *
 920 interp_field_from_token (MonoMethod *method, guint32 token, MonoClass **klass, MonoGenericContext *generic_context)
 921 {
 922         MonoClassField *field = NULL;
 923         if (method->wrapper_type != MONO_WRAPPER_NONE) {
 924                 field = (MonoClassField *) mono_method_get_wrapper_data (method, token);
 925                 *klass = field->parent;
 926         } else {
 927                 MonoError error;
 928                 error_init (&error);
 929                 field = mono_field_from_token_checked (method->klass->image, token, klass, generic_context, &error);
 930                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 931         }
 932         return field;
 933 }
 934
 935 static void
 936 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
 937 {
 938         MonoMethodHeader *header = mono_method_get_header (method);
 939         MonoMethodSignature *signature = mono_method_signature (method);
 940         MonoImage *image = method->klass->image;
 941         MonoDomain *domain = mono_domain_get ();
 942         MonoClass *constrained_class = NULL;
 943         MonoError error;
 944         int offset, mt, i, i32;
 945         gboolean readonly = FALSE;
 946         MonoClass *klass;
 947         MonoClassField *field;
 948         const unsigned char *end;
 949         int new_in_start_offset;
 950         int body_start_offset;
 951         int target;
 952         guint32 token;
 953         TransformData td;
 954         int generating_code = 1;
 955
 956         memset(&td, 0, sizeof(td));
 957         td.method = method;
 958         td.rtm = rtm;
 959         td.is_bb_start = is_bb_start;
 960         td.il_code = header->code;
 961         td.code_size = header->code_size;
 962         td.header = header;
 963         td.max_code_size = td.code_size;
 964         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 965         td.new_code_end = td.new_code + td.max_code_size;
 966         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 967         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 968         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 969         td.stack_height = g_malloc(header->code_size * sizeof(int));
 970         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 971         td.n_data_items = 0;
 972         td.max_data_items = 0;
 973         td.data_items = NULL;
 974         td.data_hash = g_hash_table_new (NULL, NULL);
 975         rtm->data_items = td.data_items;
 976         for (i = 0; i < header->code_size; i++) {
 977                 td.forward_refs [i] = -1;
 978                 td.stack_height [i] = -1;
 979         }
 980         td.new_ip = td.new_code;
 981         td.last_new_ip = NULL;
 982
 983         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
 984         td.sp = td.stack;
 985         td.max_stack_height = 0;
 986
 987         for (i = 0; i < header->num_clauses; i++) {
 988                 MonoExceptionClause *c = header->clauses + i;
 989                 td.stack_height [c->handler_offset] = 0;
 990                 td.vt_stack_size [c->handler_offset] = 0;
 991                 td.is_bb_start [c->handler_offset] = 1;
 992
 993                 td.stack_height [c->handler_offset] = 1;
 994                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 995                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 996                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 997
 998                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
 999                         td.stack_height [c->data.filter_offset] = 0;
1000                         td.vt_stack_size [c->data.filter_offset] = 0;
1001                         td.is_bb_start [c->data.filter_offset] = 1;
1002
1003                         td.stack_height [c->data.filter_offset] = 1;
1004                         td.stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
1005                         td.stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
1006                         td.stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
1007                 }
1008         }
1009
1010         td.ip = header->code;
1011         end = td.ip + header->code_size;
1012
1013         if (mono_interp_traceopt) {
1014                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
1015                 char *name = mono_method_full_name (method, TRUE);
1016                 g_print ("Method %s, original code:\n", name);
1017                 g_print ("%s\n", tmp);
1018                 g_free (tmp);
1019                 g_free (name);
1020         }
1021
1022         if (signature->hasthis)
1023                 store_inarg (&td, 0);
1024         for (i = 0; i < signature->param_count; i++)
1025                 store_inarg (&td, i + !!signature->hasthis);
1026
1027         body_start_offset = td.new_ip - td.new_code;
1028
1029         for (i = 0; i < header->num_locals; i++) {
1030                 int mt = mint_type(header->locals [i]);
1031                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1032                         ADD_CODE(&td, MINT_INITLOCALS);
1033                         break;
1034                 }
1035         }
1036
1037         while (td.ip < end) {
1038                 int in_offset;
1039
1040                 g_assert (td.sp >= td.stack);
1041                 g_assert (td.vt_sp < 0x10000000);
1042                 in_offset = td.ip - header->code;
1043                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
1044                 new_in_start_offset = td.new_ip - td.new_code;
1045                 td.in_start = td.ip;
1046                 while (td.forward_refs [in_offset] >= 0) {
1047                         int j = td.forward_refs [in_offset];
1048                         int slot;
1049                         td.forward_refs [in_offset] = td.forward_refs [j];
1050                         if (td.in_offsets [j] < 0) {
1051                                 int old_switch_offset = -td.in_offsets [j];
1052                                 int new_switch_offset = td.in_offsets [old_switch_offset];
1053                                 int switch_case = (j - old_switch_offset - 5) / 4;
1054                                 int n_cases = read32 (header->code + old_switch_offset + 1);
1055                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
1056                                 slot = new_switch_offset + 3 + 2 * switch_case;
1057                                 td.new_code [slot] = * (unsigned short *)(&offset);
1058                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1059                         } else {
1060                                 int op = td.new_code [td.in_offsets [j]];
1061                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1062                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1063                                         g_assert (offset <= 32767);
1064                                         slot = td.in_offsets [j] + 1;
1065                                         td.new_code [slot] = offset;
1066                                 } else {
1067                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1068                                         slot = td.in_offsets [j] + 1;
1069                                         td.new_code [slot] = * (unsigned short *)(&offset);
1070                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1071                                 }
1072                         }
1073                 }
1074                 if (td.stack_height [in_offset] >= 0) {
1075                         g_assert (is_bb_start [in_offset]);
1076                         if (td.stack_height [in_offset] > 0)
1077                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1078                         td.sp = td.stack + td.stack_height [in_offset];
1079                         td.vt_sp = td.vt_stack_size [in_offset];
1080                 }
1081                 if (is_bb_start [in_offset]) {
1082                         generating_code = 1;
1083                 }
1084                 if (!generating_code) {
1085                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1086                                 ++td.ip;
1087                         continue;
1088                 }
1089                 if (mono_interp_traceopt > 1) {
1090                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1091                                 td.ip - td.il_code,
1092                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1093                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1094                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1095                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1096                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1097                                 (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) : "",
1098                                 td.vt_sp, td.max_vt_sp);
1099                 }
1100                 switch (*td.ip) {
1101                 case CEE_NOP:
1102                         /* lose it */
1103                         ++td.ip;
1104                         break;
1105                 case CEE_BREAK:
1106                         SIMPLE_OP(td, MINT_BREAK);
1107                         break;
1108                 case CEE_LDARG_0:
1109                 case CEE_LDARG_1:
1110                 case CEE_LDARG_2:
1111                 case CEE_LDARG_3:
1112                         load_arg (&td, *td.ip - CEE_LDARG_0);
1113                         ++td.ip;
1114                         break;
1115                 case CEE_LDLOC_0:
1116                 case CEE_LDLOC_1:
1117                 case CEE_LDLOC_2:
1118                 case CEE_LDLOC_3:
1119                         load_local (&td, *td.ip - CEE_LDLOC_0);
1120                         ++td.ip;
1121                         break;
1122                 case CEE_STLOC_0:
1123                 case CEE_STLOC_1:
1124                 case CEE_STLOC_2:
1125                 case CEE_STLOC_3:
1126                         store_local (&td, *td.ip - CEE_STLOC_0);
1127                         ++td.ip;
1128                         break;
1129                 case CEE_LDARG_S:
1130                         load_arg (&td, ((guint8 *)td.ip)[1]);
1131                         td.ip += 2;
1132                         break;
1133                 case CEE_LDARGA_S: {
1134                         /* NOTE: n includes this */
1135                         int n = ((guint8 *) td.ip) [1];
1136                         ADD_CODE (&td, MINT_LDARGA);
1137                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1138                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1139                         td.ip += 2;
1140                         break;
1141                 }
1142                 case CEE_STARG_S:
1143                         store_arg (&td, ((guint8 *)td.ip)[1]);
1144                         td.ip += 2;
1145                         break;
1146                 case CEE_LDLOC_S:
1147                         load_local (&td, ((guint8 *)td.ip)[1]);
1148                         td.ip += 2;
1149                         break;
1150                 case CEE_LDLOCA_S:
1151                         ADD_CODE(&td, MINT_LDLOCA_S);
1152                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1153                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1154                         td.ip += 2;
1155                         break;
1156                 case CEE_STLOC_S:
1157                         store_local (&td, ((guint8 *)td.ip)[1]);
1158                         td.ip += 2;
1159                         break;
1160                 case CEE_LDNULL:
1161                         SIMPLE_OP(td, MINT_LDNULL);
1162                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1163                         break;
1164                 case CEE_LDC_I4_M1:
1165                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1166                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1167                         break;
1168                 case CEE_LDC_I4_0:
1169                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1170                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1171                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1172                                 td.ip += 2;
1173                         } else {
1174                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1175                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1176                         }
1177                         break;
1178                 case CEE_LDC_I4_1:
1179                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1180                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1181                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1182                                 td.ip += 2;
1183                         } else {
1184                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1185                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1186                         }
1187                         break;
1188                 case CEE_LDC_I4_2:
1189                 case CEE_LDC_I4_3:
1190                 case CEE_LDC_I4_4:
1191                 case CEE_LDC_I4_5:
1192                 case CEE_LDC_I4_6:
1193                 case CEE_LDC_I4_7:
1194                 case CEE_LDC_I4_8:
1195                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1196                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1197                         break;
1198                 case CEE_LDC_I4_S:
1199                         ADD_CODE(&td, MINT_LDC_I4_S);
1200                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1201                         td.ip += 2;
1202                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1203                         break;
1204                 case CEE_LDC_I4:
1205                         i32 = read32 (td.ip + 1);
1206                         ADD_CODE(&td, MINT_LDC_I4);
1207                         WRITE32(&td, &i32);
1208                         td.ip += 5;
1209                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1210                         break;
1211                 case CEE_LDC_I8: {
1212                         gint64 val = read64 (td.ip + 1);
1213                         ADD_CODE(&td, MINT_LDC_I8);
1214                         WRITE64(&td, &val);
1215                         td.ip += 9;
1216                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1217                         break;
1218                 }
1219                 case CEE_LDC_R4: {
1220                         float val;
1221                         readr4 (td.ip + 1, &val);
1222                         ADD_CODE(&td, MINT_LDC_R4);
1223                         WRITE32(&td, &val);
1224                         td.ip += 5;
1225                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1226                         break;
1227                 }
1228                 case CEE_LDC_R8: {
1229                         double val;
1230                         readr8 (td.ip + 1, &val);
1231                         ADD_CODE(&td, MINT_LDC_R8);
1232                         WRITE64(&td, &val);
1233                         td.ip += 9;
1234                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1235                         break;
1236                 }
1237                 case CEE_DUP: {
1238                         int type = td.sp [-1].type;
1239                         MonoClass *klass = td.sp [-1].klass;
1240                         if (td.sp [-1].type == STACK_TYPE_VT) {
1241                                 gint32 size = mono_class_value_size (klass, NULL);
1242                                 PUSH_VT(&td, size);
1243                                 ADD_CODE(&td, MINT_DUP_VT);
1244                                 WRITE32(&td, &size);
1245                                 td.ip ++;
1246                         } else
1247                                 SIMPLE_OP(td, MINT_DUP);
1248                         PUSH_TYPE(&td, type, klass);
1249                         break;
1250                 }
1251                 case CEE_POP:
1252                         CHECK_STACK(&td, 1);
1253                         SIMPLE_OP(td, MINT_POP);
1254                         ADD_CODE (&td, 0);
1255                         if (td.sp [-1].type == STACK_TYPE_VT) {
1256                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1257                                 size = (size + 7) & ~7;
1258                                 ADD_CODE(&td, MINT_VTRESULT);
1259                                 ADD_CODE(&td, 0);
1260                                 WRITE32(&td, &size);
1261                                 td.vt_sp -= size;
1262                         }
1263                         --td.sp;
1264                         break;
1265                 case CEE_JMP: {
1266                         MonoMethod *m;
1267                         if (td.sp > td.stack)
1268                                 g_warning ("CEE_JMP: stack must be empty");
1269                         token = read32 (td.ip + 1);
1270                         m = mono_get_method_full (image, token, NULL, generic_context);
1271                         ADD_CODE (&td, MINT_JMP);
1272                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1273                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1274                         td.ip += 5;
1275                         break;
1276                 }
1277                 case CEE_CALLVIRT: /* Fall through */
1278                 case CEE_CALLI:    /* Fall through */
1279                 case CEE_CALL: {
1280                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1281                         constrained_class = NULL;
1282                         readonly = FALSE;
1283                         break;
1284                 }
1285                 case CEE_RET: {
1286                         int vt_size = 0;
1287                         if (signature->ret->type != MONO_TYPE_VOID) {
1288                                 --td.sp;
1289                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1290                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1291                                         vt_size = mono_class_value_size (klass, NULL);
1292                                         vt_size = (vt_size + 7) & ~7;
1293                                 }
1294                         }
1295                         if (td.sp > td.stack)
1296                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1297                         if (td.vt_sp != vt_size)
1298                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1299                         if (vt_size == 0)
1300                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1301                         else {
1302                                 ADD_CODE(&td, MINT_RET_VT);
1303                                 WRITE32(&td, &vt_size);
1304                                 ++td.ip;
1305                         }
1306                         generating_code = 0;
1307                         break;
1308                 }
1309                 case CEE_BR:
1310                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1311                         td.ip += 5;
1312                         generating_code = 0;
1313                         break;
1314                 case CEE_BR_S:
1315                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1316                         td.ip += 2;
1317                         generating_code = 0;
1318                         break;
1319                 case CEE_BRFALSE:
1320                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1321                         td.ip += 5;
1322                         break;
1323                 case CEE_BRFALSE_S:
1324                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1325                         td.ip += 2;
1326                         break;
1327                 case CEE_BRTRUE:
1328                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1329                         td.ip += 5;
1330                         break;
1331                 case CEE_BRTRUE_S:
1332                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1333                         td.ip += 2;
1334                         break;
1335                 case CEE_BEQ:
1336                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1337                         td.ip += 5;
1338                         break;
1339                 case CEE_BEQ_S:
1340                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1341                         td.ip += 2;
1342                         break;
1343                 case CEE_BGE:
1344                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1345                         td.ip += 5;
1346                         break;
1347                 case CEE_BGE_S:
1348                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1349                         td.ip += 2;
1350                         break;
1351                 case CEE_BGT:
1352                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1353                         td.ip += 5;
1354                         break;
1355                 case CEE_BGT_S:
1356                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1357                         td.ip += 2;
1358                         break;
1359                 case CEE_BLT:
1360                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1361                         td.ip += 5;
1362                         break;
1363                 case CEE_BLT_S:
1364                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1365                         td.ip += 2;
1366                         break;
1367                 case CEE_BLE:
1368                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1369                         td.ip += 5;
1370                         break;
1371                 case CEE_BLE_S:
1372                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1373                         td.ip += 2;
1374                         break;
1375                 case CEE_BNE_UN:
1376                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1377                         td.ip += 5;
1378                         break;
1379                 case CEE_BNE_UN_S:
1380                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1381                         td.ip += 2;
1382                         break;
1383                 case CEE_BGE_UN:
1384                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1385                         td.ip += 5;
1386                         break;
1387                 case CEE_BGE_UN_S:
1388                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1389                         td.ip += 2;
1390                         break;
1391                 case CEE_BGT_UN:
1392                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1393                         td.ip += 5;
1394                         break;
1395                 case CEE_BGT_UN_S:
1396                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1397                         td.ip += 2;
1398                         break;
1399                 case CEE_BLE_UN:
1400                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1401                         td.ip += 5;
1402                         break;
1403                 case CEE_BLE_UN_S:
1404                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1405                         td.ip += 2;
1406                         break;
1407                 case CEE_BLT_UN:
1408                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1409                         td.ip += 5;
1410                         break;
1411                 case CEE_BLT_UN_S:
1412                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1413                         td.ip += 2;
1414                         break;
1415                 case CEE_SWITCH: {
1416                         guint32 n;
1417                         const unsigned char *next_ip;
1418                         const unsigned char *base_ip = td.ip;
1419                         unsigned short *next_new_ip;
1420                         ++td.ip;
1421                         n = read32 (td.ip);
1422                         ADD_CODE (&td, MINT_SWITCH);
1423                         WRITE32 (&td, &n);
1424                         td.ip += 4;
1425                         next_ip = td.ip + n * 4;
1426                         next_new_ip = td.new_ip + n * 2;
1427                         --td.sp;
1428                         int stack_height = td.sp - td.stack;
1429                         for (i = 0; i < n; i++) {
1430                                 offset = read32 (td.ip);
1431                                 target = next_ip - td.il_code + offset;
1432                                 if (offset < 0) {
1433 #if DEBUG_INTERP
1434                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1435                                                 g_warning ("SWITCH with back branch and non-empty stack");
1436 #endif
1437                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1438                                 } else {
1439                                         td.stack_height [target] = stack_height;
1440                                         td.vt_stack_size [target] = td.vt_sp;
1441                                         if (stack_height > 0)
1442                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1443                                         int prev = td.forward_refs [target];
1444                                         td.forward_refs [td.ip - td.il_code] = prev;
1445                                         td.forward_refs [target] = td.ip - td.il_code;
1446                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1447                                 }
1448                                 WRITE32 (&td, &target);
1449                                 td.ip += 4;
1450                         }
1451                         break;
1452                 }
1453                 case CEE_LDIND_I1:
1454                         CHECK_STACK (&td, 1);
1455                         SIMPLE_OP (td, MINT_LDIND_I1);
1456                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1457                         break;
1458                 case CEE_LDIND_U1:
1459                         CHECK_STACK (&td, 1);
1460                         SIMPLE_OP (td, MINT_LDIND_U1);
1461                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1462                         break;
1463                 case CEE_LDIND_I2:
1464                         CHECK_STACK (&td, 1);
1465                         SIMPLE_OP (td, MINT_LDIND_I2);
1466                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1467                         break;
1468                 case CEE_LDIND_U2:
1469                         CHECK_STACK (&td, 1);
1470                         SIMPLE_OP (td, MINT_LDIND_U2);
1471                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1472                         break;
1473                 case CEE_LDIND_I4:
1474                         CHECK_STACK (&td, 1);
1475                         SIMPLE_OP (td, MINT_LDIND_I4);
1476                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1477                         break;
1478                 case CEE_LDIND_U4:
1479                         CHECK_STACK (&td, 1);
1480                         SIMPLE_OP (td, MINT_LDIND_U4);
1481                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1482                         break;
1483                 case CEE_LDIND_I8:
1484                         CHECK_STACK (&td, 1);
1485                         SIMPLE_OP (td, MINT_LDIND_I8);
1486                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1487                         break;
1488                 case CEE_LDIND_I:
1489                         CHECK_STACK (&td, 1);
1490                         SIMPLE_OP (td, MINT_LDIND_I);
1491                         ADD_CODE (&td, 0);
1492                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1493                         break;
1494                 case CEE_LDIND_R4:
1495                         CHECK_STACK (&td, 1);
1496                         SIMPLE_OP (td, MINT_LDIND_R4);
1497                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1498                         break;
1499                 case CEE_LDIND_R8:
1500                         CHECK_STACK (&td, 1);
1501                         SIMPLE_OP (td, MINT_LDIND_R8);
1502                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1503                         break;
1504                 case CEE_LDIND_REF:
1505                         CHECK_STACK (&td, 1);
1506                         SIMPLE_OP (td, MINT_LDIND_REF);
1507                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1508                         break;
1509                 case CEE_STIND_REF:
1510                         CHECK_STACK (&td, 2);
1511                         SIMPLE_OP (td, MINT_STIND_REF);
1512                         td.sp -= 2;
1513                         break;
1514                 case CEE_STIND_I1:
1515                         CHECK_STACK (&td, 2);
1516                         SIMPLE_OP (td, MINT_STIND_I1);
1517                         td.sp -= 2;
1518                         break;
1519                 case CEE_STIND_I2:
1520                         CHECK_STACK (&td, 2);
1521                         SIMPLE_OP (td, MINT_STIND_I2);
1522                         td.sp -= 2;
1523                         break;
1524                 case CEE_STIND_I4:
1525                         CHECK_STACK (&td, 2);
1526                         SIMPLE_OP (td, MINT_STIND_I4);
1527                         td.sp -= 2;
1528                         break;
1529                 case CEE_STIND_I:
1530                         CHECK_STACK (&td, 2);
1531                         SIMPLE_OP (td, MINT_STIND_I);
1532                         td.sp -= 2;
1533                         break;
1534                 case CEE_STIND_I8:
1535                         CHECK_STACK (&td, 2);
1536                         SIMPLE_OP (td, MINT_STIND_I8);
1537                         td.sp -= 2;
1538                         break;
1539                 case CEE_STIND_R4:
1540                         CHECK_STACK (&td, 2);
1541                         SIMPLE_OP (td, MINT_STIND_R4);
1542                         td.sp -= 2;
1543                         break;
1544                 case CEE_STIND_R8:
1545                         CHECK_STACK (&td, 2);
1546                         SIMPLE_OP (td, MINT_STIND_R8);
1547                         td.sp -= 2;
1548                         break;
1549                 case CEE_ADD:
1550                         binary_arith_op(&td, MINT_ADD_I4);
1551                         ++td.ip;
1552                         break;
1553                 case CEE_SUB:
1554                         binary_arith_op(&td, MINT_SUB_I4);
1555                         ++td.ip;
1556                         break;
1557                 case CEE_MUL:
1558                         binary_arith_op(&td, MINT_MUL_I4);
1559                         ++td.ip;
1560                         break;
1561                 case CEE_DIV:
1562                         binary_arith_op(&td, MINT_DIV_I4);
1563                         ++td.ip;
1564                         break;
1565                 case CEE_DIV_UN:
1566                         binary_arith_op(&td, MINT_DIV_UN_I4);
1567                         ++td.ip;
1568                         break;
1569                 case CEE_REM:
1570                         binary_int_op (&td, MINT_REM_I4);
1571                         ++td.ip;
1572                         break;
1573                 case CEE_REM_UN:
1574                         binary_int_op (&td, MINT_REM_UN_I4);
1575                         ++td.ip;
1576                         break;
1577                 case CEE_AND:
1578                         binary_int_op (&td, MINT_AND_I4);
1579                         ++td.ip;
1580                         break;
1581                 case CEE_OR:
1582                         binary_int_op (&td, MINT_OR_I4);
1583                         ++td.ip;
1584                         break;
1585                 case CEE_XOR:
1586                         binary_int_op (&td, MINT_XOR_I4);
1587                         ++td.ip;
1588                         break;
1589                 case CEE_SHL:
1590                         shift_op (&td, MINT_SHL_I4);
1591                         ++td.ip;
1592                         break;
1593                 case CEE_SHR:
1594                         shift_op (&td, MINT_SHR_I4);
1595                         ++td.ip;
1596                         break;
1597                 case CEE_SHR_UN:
1598                         shift_op (&td, MINT_SHR_UN_I4);
1599                         ++td.ip;
1600                         break;
1601                 case CEE_NEG:
1602                         unary_arith_op (&td, MINT_NEG_I4);
1603                         ++td.ip;
1604                         break;
1605                 case CEE_NOT:
1606                         unary_arith_op (&td, MINT_NOT_I4);
1607                         ++td.ip;
1608                         break;
1609                 case CEE_CONV_U1:
1610                         CHECK_STACK (&td, 1);
1611                         switch (td.sp [-1].type) {
1612                         case STACK_TYPE_R8:
1613                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1614                                 break;
1615                         case STACK_TYPE_I4:
1616                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1617                                 break;
1618                         case STACK_TYPE_I8:
1619                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1620                                 break;
1621                         default:
1622                                 g_assert_not_reached ();
1623                         }
1624                         ++td.ip;
1625                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1626                         break;
1627                 case CEE_CONV_I1:
1628                         CHECK_STACK (&td, 1);
1629                         switch (td.sp [-1].type) {
1630                         case STACK_TYPE_R8:
1631                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1632                                 break;
1633                         case STACK_TYPE_I4:
1634                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1635                                 break;
1636                         case STACK_TYPE_I8:
1637                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1638                                 break;
1639                         default:
1640                                 g_assert_not_reached ();
1641                         }
1642                         ++td.ip;
1643                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1644                         break;
1645                 case CEE_CONV_U2:
1646                         CHECK_STACK (&td, 1);
1647                         switch (td.sp [-1].type) {
1648                         case STACK_TYPE_R8:
1649                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1650                                 break;
1651                         case STACK_TYPE_I4:
1652                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1653                                 break;
1654                         case STACK_TYPE_I8:
1655                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1656                                 break;
1657                         default:
1658                                 g_assert_not_reached ();
1659                         }
1660                         ++td.ip;
1661                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1662                         break;
1663                 case CEE_CONV_I2:
1664                         CHECK_STACK (&td, 1);
1665                         switch (td.sp [-1].type) {
1666                         case STACK_TYPE_R8:
1667                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1668                                 break;
1669                         case STACK_TYPE_I4:
1670                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1671                                 break;
1672                         case STACK_TYPE_I8:
1673                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1674                                 break;
1675                         default:
1676                                 g_assert_not_reached ();
1677                         }
1678                         ++td.ip;
1679                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1680                         break;
1681                 case CEE_CONV_U:
1682                         CHECK_STACK (&td, 1);
1683                         switch (td.sp [-1].type) {
1684                         case STACK_TYPE_R8:
1685 #if SIZEOF_VOID_P == 4
1686                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1687 #else
1688                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1689 #endif
1690                                 break;
1691                         case STACK_TYPE_I4:
1692 #if SIZEOF_VOID_P == 8
1693                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1694 #endif
1695                                 break;
1696                         case STACK_TYPE_I8:
1697 #if SIZEOF_VOID_P == 4
1698                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1699 #endif
1700                                 break;
1701                         case STACK_TYPE_MP:
1702                                 break;
1703                         default:
1704                                 g_assert_not_reached ();
1705                         }
1706                         ++td.ip;
1707                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1708                         break;
1709                 case CEE_CONV_I:
1710                         CHECK_STACK (&td, 1);
1711                         switch (td.sp [-1].type) {
1712                         case STACK_TYPE_R8:
1713 #if SIZEOF_VOID_P == 8
1714                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1715 #else
1716                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1717 #endif
1718                                 break;
1719                         case STACK_TYPE_I4:
1720 #if SIZEOF_VOID_P == 8
1721                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1722 #endif
1723                                 break;
1724                         case STACK_TYPE_O:
1725                                 break;
1726                         case STACK_TYPE_MP:
1727                                 break;
1728                         case STACK_TYPE_I8:
1729 #if SIZEOF_VOID_P == 4
1730                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1731 #endif
1732                                 break;
1733                         default:
1734                                 g_assert_not_reached ();
1735                         }
1736                         ++td.ip;
1737                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1738                         break;
1739                 case CEE_CONV_U4:
1740                         CHECK_STACK (&td, 1);
1741                         switch (td.sp [-1].type) {
1742                         case STACK_TYPE_R8:
1743                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1744                                 break;
1745                         case STACK_TYPE_I4:
1746                                 break;
1747                         case STACK_TYPE_I8:
1748                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1749                                 break;
1750                         case STACK_TYPE_MP:
1751 #if SIZEOF_VOID_P == 8
1752                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1753 #endif
1754                                 break;
1755                         default:
1756                                 g_assert_not_reached ();
1757                         }
1758                         ++td.ip;
1759                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1760                         break;
1761                 case CEE_CONV_I4:
1762                         CHECK_STACK (&td, 1);
1763                         switch (td.sp [-1].type) {
1764                         case STACK_TYPE_R8:
1765                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1766                                 break;
1767                         case STACK_TYPE_I4:
1768                                 break;
1769                         case STACK_TYPE_I8:
1770                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1771                                 break;
1772                         case STACK_TYPE_MP:
1773 #if SIZEOF_VOID_P == 8
1774                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1775 #endif
1776                                 break;
1777                         default:
1778                                 g_assert_not_reached ();
1779                         }
1780                         ++td.ip;
1781                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1782                         break;
1783                 case CEE_CONV_I8:
1784                         CHECK_STACK (&td, 1);
1785                         switch (td.sp [-1].type) {
1786                         case STACK_TYPE_R8:
1787                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1788                                 break;
1789                         case STACK_TYPE_I4:
1790                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1791                                 break;
1792                         case STACK_TYPE_I8:
1793                                 break;
1794                         case STACK_TYPE_MP:
1795 #if SIZEOF_VOID_P == 4
1796                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1797 #endif
1798                                 break;
1799                         default:
1800                                 g_assert_not_reached ();
1801                         }
1802                         ++td.ip;
1803                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1804                         break;
1805                 case CEE_CONV_R4:
1806                         CHECK_STACK (&td, 1);
1807                         switch (td.sp [-1].type) {
1808                         case STACK_TYPE_R8:
1809                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1810                                 break;
1811                         case STACK_TYPE_I8:
1812                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1813                                 break;
1814                         case STACK_TYPE_I4:
1815                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1816                                 break;
1817                         default:
1818                                 g_assert_not_reached ();
1819                         }
1820                         ++td.ip;
1821                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1822                         break;
1823                 case CEE_CONV_R8:
1824                         CHECK_STACK (&td, 1);
1825                         switch (td.sp [-1].type) {
1826                         case STACK_TYPE_I4:
1827                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1828                                 break;
1829                         case STACK_TYPE_I8:
1830                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1831                                 break;
1832                         case STACK_TYPE_R8:
1833                                 break;
1834                         default:
1835                                 g_assert_not_reached ();
1836                         }
1837                         ++td.ip;
1838                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1839                         break;
1840                 case CEE_CONV_U8:
1841                         CHECK_STACK (&td, 1);
1842                         switch (td.sp [-1].type) {
1843                         case STACK_TYPE_I4:
1844                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1845                                 break;
1846                         case STACK_TYPE_I8:
1847                                 break;
1848                         case STACK_TYPE_R8:
1849                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1850                                 break;
1851                         case STACK_TYPE_MP:
1852 #if SIZEOF_VOID_P == 4
1853                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1854 #endif
1855                                 break;
1856                         default:
1857                                 g_assert_not_reached ();
1858                         }
1859                         ++td.ip;
1860                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1861                         break;
1862                 case CEE_CPOBJ: {
1863                         CHECK_STACK (&td, 2);
1864
1865                         token = read32 (td.ip + 1);
1866                         klass = mono_class_get_full (image, token, generic_context);
1867
1868                         if (klass->valuetype) {
1869                                 ADD_CODE (&td, MINT_CPOBJ);
1870                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1871                         } else {
1872                                 ADD_CODE (&td, MINT_LDIND_REF);
1873                                 ADD_CODE (&td, MINT_STIND_REF);
1874                         }
1875                         td.ip += 5;
1876                         td.sp -= 2;
1877                         break;
1878                 }
1879                 case CEE_LDOBJ: {
1880                         int size;
1881                         CHECK_STACK (&td, 1);
1882
1883                         token = read32 (td.ip + 1);
1884
1885                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1886                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1887                         else
1888                                 klass = mono_class_get_full (image, token, generic_context);
1889
1890                         ADD_CODE(&td, MINT_LDOBJ);
1891                         ADD_CODE(&td, get_data_item_index(&td, klass));
1892                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1893                                 size = mono_class_value_size (klass, NULL);
1894                                 PUSH_VT(&td, size);
1895                         }
1896                         td.ip += 5;
1897                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1898                         break;
1899                 }
1900                 case CEE_LDSTR: {
1901                         MonoString *s;
1902                         token = mono_metadata_token_index (read32 (td.ip + 1));
1903                         td.ip += 5;
1904                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1905                                 s = mono_string_new_wrapper(
1906                                         mono_method_get_wrapper_data (method, token));
1907                         }
1908                         else
1909                                 s = mono_ldstr (domain, image, token);
1910                         ADD_CODE(&td, MINT_LDSTR);
1911                         ADD_CODE(&td, get_data_item_index (&td, s));
1912                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1913                         break;
1914                 }
1915                 case CEE_NEWOBJ: {
1916                         MonoMethod *m;
1917                         MonoMethodSignature *csignature;
1918                         guint32 vt_stack_used = 0;
1919                         guint32 vt_res_size = 0;
1920
1921                         td.ip++;
1922                         token = read32 (td.ip);
1923                         td.ip += 4;
1924
1925                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1926                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1927                         else
1928                                 m = mono_get_method_full (image, token, NULL, generic_context);
1929
1930                         csignature = mono_method_signature (m);
1931                         klass = m->klass;
1932                         td.sp -= csignature->param_count;
1933                         ADD_CODE(&td, MINT_NEWOBJ);
1934                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1935                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1936
1937                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1938                                 vt_res_size = mono_class_value_size (klass, NULL);
1939                                 PUSH_VT (&td, vt_res_size);
1940                         }
1941                         for (i = 0; i < csignature->param_count; ++i) {
1942                                 int mt = mint_type(csignature->params [i]);
1943                                 if (mt == MINT_TYPE_VT) {
1944                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1945                                         gint32 size = mono_class_value_size (k, NULL);
1946                                         size = (size + 7) & ~7;
1947                                         vt_stack_used += size;
1948                                 }
1949                         }
1950                         if (vt_stack_used != 0 || vt_res_size != 0) {
1951                                 ADD_CODE(&td, MINT_VTRESULT);
1952                                 ADD_CODE(&td, vt_res_size);
1953                                 WRITE32(&td, &vt_stack_used);
1954                                 td.vt_sp -= vt_stack_used;
1955                         }
1956                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1957                         break;
1958                 }
1959                 case CEE_CASTCLASS:
1960                         CHECK_STACK (&td, 1);
1961                         token = read32 (td.ip + 1);
1962                         klass = mini_get_class (method, token, generic_context);
1963                         ADD_CODE(&td, MINT_CASTCLASS);
1964                         ADD_CODE(&td, get_data_item_index (&td, klass));
1965                         td.sp [-1].klass = klass;
1966                         td.ip += 5;
1967                         break;
1968                 case CEE_ISINST:
1969                         CHECK_STACK (&td, 1);
1970                         token = read32 (td.ip + 1);
1971                         klass = mini_get_class (method, token, generic_context);
1972                         ADD_CODE(&td, MINT_ISINST);
1973                         ADD_CODE(&td, get_data_item_index (&td, klass));
1974                         td.ip += 5;
1975                         break;
1976                 case CEE_CONV_R_UN:
1977                         switch (td.sp [-1].type) {
1978                         case STACK_TYPE_R8:
1979                                 break;
1980                         case STACK_TYPE_I8:
1981                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1982                                 break;
1983                         case STACK_TYPE_I4:
1984                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1985                                 break;
1986                         default:
1987                                 g_assert_not_reached ();
1988                         }
1989                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1990                         ++td.ip;
1991                         break;
1992                 case CEE_UNBOX:
1993                         CHECK_STACK (&td, 1);
1994                         token = read32 (td.ip + 1);
1995
1996                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1997                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1998                         else
1999                                 klass = mono_class_get_full (image, token, generic_context);
2000
2001                         if (mono_class_is_nullable (klass)) {
2002                                 g_error ("cee_unbox: implement Nullable");
2003                         }
2004
2005                         ADD_CODE(&td, MINT_UNBOX);
2006                         ADD_CODE(&td, get_data_item_index (&td, klass));
2007                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2008                         td.ip += 5;
2009                         break;
2010                 case CEE_UNBOX_ANY:
2011                         CHECK_STACK (&td, 1);
2012                         token = read32 (td.ip + 1);
2013
2014                         klass = mini_get_class (method, token, generic_context);
2015
2016                         if (mini_type_is_reference (&klass->byval_arg)) {
2017                                 int mt = mint_type (&klass->byval_arg);
2018                                 ADD_CODE (&td, MINT_CASTCLASS);
2019                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2020                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2021                                 td.ip += 5;
2022                         } else if (mono_class_is_nullable (klass)) {
2023                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2024                                 /* td.ip is incremented by interp_transform_call */
2025                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2026                         } else {
2027                                 int mt = mint_type (&klass->byval_arg);
2028                                 ADD_CODE (&td, MINT_UNBOX);
2029                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2030
2031                                 ADD_CODE (&td, MINT_LDOBJ);
2032                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2033                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2034
2035                                 if (mt == MINT_TYPE_VT) {
2036                                         int size = mono_class_value_size (klass, NULL);
2037                                         PUSH_VT (&td, size);
2038                                 }
2039                                 td.ip += 5;
2040                         }
2041
2042                         break;
2043                 case CEE_THROW:
2044                         CHECK_STACK (&td, 1);
2045                         SIMPLE_OP (td, MINT_THROW);
2046                         --td.sp;
2047                         generating_code = 0;
2048                         break;
2049                 case CEE_LDFLDA:
2050                         CHECK_STACK (&td, 1);
2051                         token = read32 (td.ip + 1);
2052                         field = interp_field_from_token (method, token, &klass, generic_context);
2053                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2054                         mono_class_init (klass);
2055                         if (is_static) {
2056                                 ADD_CODE (&td, MINT_POP);
2057                                 ADD_CODE (&td, 0);
2058                                 ADD_CODE (&td, MINT_LDSFLDA);
2059                                 ADD_CODE (&td, get_data_item_index (&td, field));
2060                         } else {
2061                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2062                                         ADD_CODE (&td, MINT_LDFLDA);
2063                                 } else {
2064                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2065                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2066                                 }
2067                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2068                         }
2069                         td.ip += 5;
2070                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2071                         break;
2072                 case CEE_LDFLD: {
2073                         CHECK_STACK (&td, 1);
2074                         token = read32 (td.ip + 1);
2075                         field = interp_field_from_token (method, token, &klass, generic_context);
2076                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2077                         mono_class_init (klass);
2078
2079                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2080                         mt = mint_type (&field_klass->byval_arg);
2081                         if (klass->marshalbyref) {
2082                                 g_assert (!is_static);
2083                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2084                                 ADD_CODE(&td, get_data_item_index (&td, field));
2085                         } else  {
2086                                 if (is_static) {
2087                                         ADD_CODE (&td, MINT_POP);
2088                                         ADD_CODE (&td, 0);
2089                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2090                                         ADD_CODE (&td, get_data_item_index (&td, field));
2091                                 } else {
2092                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2093                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2094                                 }
2095                         }
2096                         if (mt == MINT_TYPE_VT) {
2097                                 int size = mono_class_value_size (field_klass, NULL);
2098                                 PUSH_VT(&td, size);
2099                                 WRITE32(&td, &size);
2100                         }
2101                         if (td.sp [-1].type == STACK_TYPE_VT) {
2102                                 int size = mono_class_value_size (klass, NULL);
2103                                 size = (size + 7) & ~7;
2104                                 td.vt_sp -= size;
2105                                 ADD_CODE (&td, MINT_VTRESULT);
2106                                 ADD_CODE (&td, 0);
2107                                 WRITE32 (&td, &size);
2108                         }
2109                         td.ip += 5;
2110                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2111                         break;
2112                 }
2113                 case CEE_STFLD: {
2114                         CHECK_STACK (&td, 2);
2115                         token = read32 (td.ip + 1);
2116                         field = interp_field_from_token (method, token, &klass, generic_context);
2117                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2118                         mono_class_init (klass);
2119                         mt = mint_type(field->type);
2120
2121                         if (klass->marshalbyref) {
2122                                 g_assert (!is_static);
2123                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2124                                 ADD_CODE(&td, get_data_item_index (&td, field));
2125                         } else  {
2126                                 if (is_static) {
2127                                         ADD_CODE (&td, MINT_POP);
2128                                         ADD_CODE (&td, 1);
2129                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2130                                         ADD_CODE (&td, get_data_item_index (&td, field));
2131                                 } else {
2132                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2133                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2134                                 }
2135                         }
2136                         if (mt == MINT_TYPE_VT) {
2137                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2138                                 int size = mono_class_value_size (klass, NULL);
2139                                 POP_VT(&td, size);
2140                                 WRITE32(&td, &size);
2141                         }
2142                         td.ip += 5;
2143                         td.sp -= 2;
2144                         break;
2145                 }
2146                 case CEE_LDSFLDA:
2147                         token = read32 (td.ip + 1);
2148                         field = interp_field_from_token (method, token, &klass, generic_context);
2149                         ADD_CODE(&td, MINT_LDSFLDA);
2150                         ADD_CODE(&td, get_data_item_index (&td, field));
2151                         td.ip += 5;
2152                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2153                         break;
2154                 case CEE_LDSFLD:
2155                         token = read32 (td.ip + 1);
2156                         field = interp_field_from_token (method, token, &klass, generic_context);
2157                         mt = mint_type(field->type);
2158                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2159                         ADD_CODE(&td, get_data_item_index (&td, field));
2160                         klass = NULL;
2161                         if (mt == MINT_TYPE_VT) {
2162                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2163                                 int size = mono_class_value_size (klass, NULL);
2164                                 PUSH_VT(&td, size);
2165                                 WRITE32(&td, &size);
2166                                 klass = field->type->data.klass;
2167                         } else {
2168                                 if (mt == MINT_TYPE_O)
2169                                         klass = mono_class_from_mono_type (field->type);
2170                         }
2171                         td.ip += 5;
2172                         PUSH_TYPE(&td, stack_type [mt], klass);
2173                         break;
2174                 case CEE_STSFLD:
2175                         CHECK_STACK (&td, 1);
2176                         token = read32 (td.ip + 1);
2177                         field = interp_field_from_token (method, token, &klass, generic_context);
2178                         mt = mint_type(field->type);
2179                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2180                         ADD_CODE(&td, get_data_item_index (&td, field));
2181                         if (mt == MINT_TYPE_VT) {
2182                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2183                                 int size = mono_class_value_size (klass, NULL);
2184                                 POP_VT (&td, size);
2185                                 WRITE32 (&td, &size);
2186                         }
2187                         td.ip += 5;
2188                         --td.sp;
2189                         break;
2190                 case CEE_STOBJ: {
2191                         int size;
2192                         token = read32 (td.ip + 1);
2193
2194                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2195                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2196                         else
2197                                 klass = mini_get_class (method, token, generic_context);
2198
2199                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2200                         ADD_CODE(&td, get_data_item_index (&td, klass));
2201                         if (td.sp [-1].type == STACK_TYPE_VT) {
2202                                 size = mono_class_value_size (klass, NULL);
2203                                 size = (size + 7) & ~7;
2204                                 td.vt_sp -= size;
2205                         }
2206                         td.ip += 5;
2207                         td.sp -= 2;
2208                         break;
2209                 }
2210                 case CEE_CONV_OVF_I_UN:
2211                 case CEE_CONV_OVF_U_UN:
2212                         CHECK_STACK (&td, 1);
2213                         switch (td.sp [-1].type) {
2214                         case STACK_TYPE_R8:
2215 #if SIZEOF_VOID_P == 8
2216                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2217 #else
2218                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2219 #endif
2220                                 break;
2221                         case STACK_TYPE_I8:
2222 #if SIZEOF_VOID_P == 4
2223                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2224 #endif
2225                                 break;
2226                         case STACK_TYPE_I4:
2227 #if SIZEOF_VOID_P == 8
2228                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2229 #endif
2230                                 break;
2231                         default:
2232                                 g_assert_not_reached ();
2233                                 break;
2234                         }
2235                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2236                         ++td.ip;
2237                         break;
2238                 case CEE_CONV_OVF_I8_UN:
2239                 case CEE_CONV_OVF_U8_UN:
2240                         CHECK_STACK (&td, 1);
2241                         switch (td.sp [-1].type) {
2242                         case STACK_TYPE_R8:
2243                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2244                                 break;
2245                         case STACK_TYPE_I8:
2246                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2247                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2248                                 break;
2249                         case STACK_TYPE_I4:
2250                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2251                                 break;
2252                         default:
2253                                 g_assert_not_reached ();
2254                                 break;
2255                         }
2256                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2257                         ++td.ip;
2258                         break;
2259                 case CEE_BOX: {
2260                         int size;
2261                         CHECK_STACK (&td, 1);
2262                         token = read32 (td.ip + 1);
2263                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2264                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2265                         else
2266                                 klass = mini_get_class (method, token, generic_context);
2267
2268                         if (mono_class_is_nullable (klass)) {
2269                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2270                                 /* td.ip is incremented by interp_transform_call */
2271                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2272                         } else if (!klass->valuetype) {
2273                                 /* already boxed, do nothing. */
2274                                 td.ip += 5;
2275                         } else {
2276                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2277                                         size = mono_class_value_size (klass, NULL);
2278                                         size = (size + 7) & ~7;
2279                                         td.vt_sp -= size;
2280                                 }
2281                                 ADD_CODE(&td, MINT_BOX);
2282                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2283                                 ADD_CODE (&td, 0);
2284                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2285                                 td.ip += 5;
2286                         }
2287
2288                         break;
2289                 }
2290                 case CEE_NEWARR: {
2291                         CHECK_STACK (&td, 1);
2292                         token = read32 (td.ip + 1);
2293
2294                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2295                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2296                         else
2297                                 klass = mini_get_class (method, token, generic_context);
2298
2299                         unsigned char lentype = (td.sp - 1)->type;
2300                         if (lentype == STACK_TYPE_I8) {
2301                                 /* mimic mini behaviour */
2302                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2303                         } else {
2304                                 g_assert (lentype == STACK_TYPE_I4);
2305                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2306                         }
2307                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2308                         ADD_CODE (&td, MINT_NEWARR);
2309                         ADD_CODE (&td, get_data_item_index (&td, klass));
2310                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2311                         td.ip += 5;
2312                         break;
2313                 }
2314                 case CEE_LDLEN:
2315                         CHECK_STACK (&td, 1);
2316                         SIMPLE_OP (td, MINT_LDLEN);
2317                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2318                         break;
2319                 case CEE_LDELEMA:
2320                         CHECK_STACK (&td, 2);
2321                         ENSURE_I4 (&td, 1);
2322                         token = read32 (td.ip + 1);
2323
2324                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2325                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2326                         else
2327                                 klass = mini_get_class (method, token, generic_context);
2328
2329                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2330                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2331                         } else {
2332                                 ADD_CODE (&td, MINT_LDELEMA);
2333                         }
2334                         ADD_CODE (&td, get_data_item_index (&td, klass));
2335                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2336                         ADD_CODE (&td, 2);
2337                         readonly = FALSE;
2338
2339                         td.ip += 5;
2340                         --td.sp;
2341                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2342                         break;
2343                 case CEE_LDELEM_I1:
2344                         CHECK_STACK (&td, 2);
2345                         ENSURE_I4 (&td, 1);
2346                         SIMPLE_OP (td, MINT_LDELEM_I1);
2347                         --td.sp;
2348                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2349                         break;
2350                 case CEE_LDELEM_U1:
2351                         CHECK_STACK (&td, 2);
2352                         ENSURE_I4 (&td, 1);
2353                         SIMPLE_OP (td, MINT_LDELEM_U1);
2354                         --td.sp;
2355                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2356                         break;
2357                 case CEE_LDELEM_I2:
2358                         CHECK_STACK (&td, 2);
2359                         ENSURE_I4 (&td, 1);
2360                         SIMPLE_OP (td, MINT_LDELEM_I2);
2361                         --td.sp;
2362                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2363                         break;
2364                 case CEE_LDELEM_U2:
2365                         CHECK_STACK (&td, 2);
2366                         ENSURE_I4 (&td, 1);
2367                         SIMPLE_OP (td, MINT_LDELEM_U2);
2368                         --td.sp;
2369                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2370                         break;
2371                 case CEE_LDELEM_I4:
2372                         CHECK_STACK (&td, 2);
2373                         ENSURE_I4 (&td, 1);
2374                         SIMPLE_OP (td, MINT_LDELEM_I4);
2375                         --td.sp;
2376                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2377                         break;
2378                 case CEE_LDELEM_U4:
2379                         CHECK_STACK (&td, 2);
2380                         ENSURE_I4 (&td, 1);
2381                         SIMPLE_OP (td, MINT_LDELEM_U4);
2382                         --td.sp;
2383                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2384                         break;
2385                 case CEE_LDELEM_I8:
2386                         CHECK_STACK (&td, 2);
2387                         ENSURE_I4 (&td, 1);
2388                         SIMPLE_OP (td, MINT_LDELEM_I8);
2389                         --td.sp;
2390                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2391                         break;
2392                 case CEE_LDELEM_I:
2393                         CHECK_STACK (&td, 2);
2394                         ENSURE_I4 (&td, 1);
2395                         SIMPLE_OP (td, MINT_LDELEM_I);
2396                         --td.sp;
2397                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2398                         break;
2399                 case CEE_LDELEM_R4:
2400                         CHECK_STACK (&td, 2);
2401                         ENSURE_I4 (&td, 1);
2402                         SIMPLE_OP (td, MINT_LDELEM_R4);
2403                         --td.sp;
2404                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2405                         break;
2406                 case CEE_LDELEM_R8:
2407                         CHECK_STACK (&td, 2);
2408                         ENSURE_I4 (&td, 1);
2409                         SIMPLE_OP (td, MINT_LDELEM_R8);
2410                         --td.sp;
2411                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2412                         break;
2413                 case CEE_LDELEM_REF:
2414                         CHECK_STACK (&td, 2);
2415                         ENSURE_I4 (&td, 1);
2416                         SIMPLE_OP (td, MINT_LDELEM_REF);
2417                         --td.sp;
2418                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2419                         break;
2420                 case CEE_LDELEM:
2421                         CHECK_STACK (&td, 2);
2422                         token = read32 (td.ip + 1);
2423                         klass = mini_get_class (method, token, generic_context);
2424                         switch (mint_type (&klass->byval_arg)) {
2425                                 case MINT_TYPE_I1:
2426                                         ENSURE_I4 (&td, 1);
2427                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2428                                         --td.sp;
2429                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2430                                         break;
2431                                 case MINT_TYPE_U1:
2432                                         ENSURE_I4 (&td, 1);
2433                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2434                                         --td.sp;
2435                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2436                                         break;
2437                                 case MINT_TYPE_U2:
2438                                         ENSURE_I4 (&td, 1);
2439                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2440                                         --td.sp;
2441                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2442                                         break;
2443                                 case MINT_TYPE_I2:
2444                                         ENSURE_I4 (&td, 1);
2445                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2446                                         --td.sp;
2447                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2448                                         break;
2449                                 case MINT_TYPE_I4:
2450                                         ENSURE_I4 (&td, 1);
2451                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2452                                         --td.sp;
2453                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2454                                         break;
2455                                 case MINT_TYPE_I8:
2456                                         ENSURE_I4 (&td, 1);
2457                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2458                                         --td.sp;
2459                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2460                                         break;
2461                                 case MINT_TYPE_R4:
2462                                         ENSURE_I4 (&td, 1);
2463                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2464                                         --td.sp;
2465                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2466                                         break;
2467                                 case MINT_TYPE_R8:
2468                                         ENSURE_I4 (&td, 1);
2469                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2470                                         --td.sp;
2471                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2472                                         break;
2473                                 case MINT_TYPE_O:
2474                                         ENSURE_I4 (&td, 1);
2475                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2476                                         --td.sp;
2477                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2478                                         break;
2479                                 case MINT_TYPE_VT: {
2480                                         int size = mono_class_value_size (klass, NULL);
2481                                         ENSURE_I4 (&td, 1);
2482                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2483                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2484                                         WRITE32 (&td, &size);
2485                                         --td.sp;
2486                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2487                                         PUSH_VT (&td, size);
2488                                         break;
2489                                 }
2490                                 default: {
2491                                         GString *res = g_string_new ("");
2492                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2493                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2494                                         g_string_free (res, TRUE);
2495                                         g_assert (0);
2496                                         break;
2497                                 }
2498                         }
2499                         td.ip += 4;
2500                         break;
2501                 case CEE_STELEM_I:
2502                         CHECK_STACK (&td, 3);
2503                         ENSURE_I4 (&td, 2);
2504                         SIMPLE_OP (td, MINT_STELEM_I);
2505                         td.sp -= 3;
2506                         break;
2507                 case CEE_STELEM_I1:
2508                         CHECK_STACK (&td, 3);
2509                         ENSURE_I4 (&td, 2);
2510                         SIMPLE_OP (td, MINT_STELEM_I1);
2511                         td.sp -= 3;
2512                         break;
2513                 case CEE_STELEM_I2:
2514                         CHECK_STACK (&td, 3);
2515                         ENSURE_I4 (&td, 2);
2516                         SIMPLE_OP (td, MINT_STELEM_I2);
2517                         td.sp -= 3;
2518                         break;
2519                 case CEE_STELEM_I4:
2520                         CHECK_STACK (&td, 3);
2521                         ENSURE_I4 (&td, 2);
2522                         SIMPLE_OP (td, MINT_STELEM_I4);
2523                         td.sp -= 3;
2524                         break;
2525                 case CEE_STELEM_I8:
2526                         CHECK_STACK (&td, 3);
2527                         ENSURE_I4 (&td, 2);
2528                         SIMPLE_OP (td, MINT_STELEM_I8);
2529                         td.sp -= 3;
2530                         break;
2531                 case CEE_STELEM_R4:
2532                         CHECK_STACK (&td, 3);
2533                         ENSURE_I4 (&td, 2);
2534                         SIMPLE_OP (td, MINT_STELEM_R4);
2535                         td.sp -= 3;
2536                         break;
2537                 case CEE_STELEM_R8:
2538                         CHECK_STACK (&td, 3);
2539                         ENSURE_I4 (&td, 2);
2540                         SIMPLE_OP (td, MINT_STELEM_R8);
2541                         td.sp -= 3;
2542                         break;
2543                 case CEE_STELEM_REF:
2544                         CHECK_STACK (&td, 3);
2545                         ENSURE_I4 (&td, 2);
2546                         SIMPLE_OP (td, MINT_STELEM_REF);
2547                         td.sp -= 3;
2548                         break;
2549                 case CEE_STELEM:
2550                         CHECK_STACK (&td, 3);
2551                         ENSURE_I4 (&td, 2);
2552                         token = read32 (td.ip + 1);
2553                         klass = mini_get_class (method, token, generic_context);
2554                         switch (mint_type (&klass->byval_arg)) {
2555                                 case MINT_TYPE_U1:
2556                                         SIMPLE_OP (td, MINT_STELEM_U1);
2557                                         break;
2558                                 case MINT_TYPE_U2:
2559                                         SIMPLE_OP (td, MINT_STELEM_U2);
2560                                         break;
2561                                 case MINT_TYPE_I4:
2562                                         SIMPLE_OP (td, MINT_STELEM_I4);
2563                                         break;
2564                                 case MINT_TYPE_I8:
2565                                         SIMPLE_OP (td, MINT_STELEM_I8);
2566                                         break;
2567                                 case MINT_TYPE_O:
2568                                         SIMPLE_OP (td, MINT_STELEM_REF);
2569                                         break;
2570                                 case MINT_TYPE_VT: {
2571                                         int size = mono_class_value_size (klass, NULL);
2572                                         SIMPLE_OP (td, MINT_STELEM_VT);
2573                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2574                                         WRITE32 (&td, &size);
2575                                         POP_VT (&td, size);
2576                                         break;
2577                                 }
2578                                 default: {
2579                                         GString *res = g_string_new ("");
2580                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2581                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2582                                         g_string_free (res, TRUE);
2583                                         g_assert (0);
2584                                         break;
2585                                 }
2586                         }
2587                         td.ip += 4;
2588                         td.sp -= 3;
2589                         break;
2590 #if 0
2591                 case CEE_CONV_OVF_U1:
2592
2593                 case CEE_CONV_OVF_I8:
2594
2595 #if SIZEOF_VOID_P == 8
2596                 case CEE_CONV_OVF_U:
2597 #endif
2598                 case CEE_REFANYVAL: ves_abort(); break;
2599 #endif
2600                 case CEE_CKFINITE:
2601                         CHECK_STACK (&td, 1);
2602                         SIMPLE_OP (td, MINT_CKFINITE);
2603                         break;
2604                 case CEE_CONV_OVF_I1:
2605                 case CEE_CONV_OVF_I1_UN:
2606                         CHECK_STACK (&td, 1);
2607                         switch (td.sp [-1].type) {
2608                         case STACK_TYPE_R8:
2609                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2610                                 break;
2611                         case STACK_TYPE_I4:
2612                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2613                                 break;
2614                         case STACK_TYPE_I8:
2615                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2616                                 break;
2617                         default:
2618                                 g_assert_not_reached ();
2619                         }
2620                         ++td.ip;
2621                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2622                         break;
2623                 case CEE_CONV_OVF_U1:
2624                 case CEE_CONV_OVF_U1_UN:
2625                         CHECK_STACK (&td, 1);
2626                         switch (td.sp [-1].type) {
2627                         case STACK_TYPE_R8:
2628                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2629                                 break;
2630                         case STACK_TYPE_I4:
2631                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2632                                 break;
2633                         case STACK_TYPE_I8:
2634                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2635                                 break;
2636                         default:
2637                                 g_assert_not_reached ();
2638                         }
2639                         ++td.ip;
2640                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2641                         break;
2642                 case CEE_CONV_OVF_I2:
2643                 case CEE_CONV_OVF_I2_UN:
2644                         CHECK_STACK (&td, 1);
2645                         switch (td.sp [-1].type) {
2646                         case STACK_TYPE_R8:
2647                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2648                                 break;
2649                         case STACK_TYPE_I4:
2650                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2651                                 break;
2652                         case STACK_TYPE_I8:
2653                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2654                                 break;
2655                         default:
2656                                 g_assert_not_reached ();
2657                         }
2658                         ++td.ip;
2659                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2660                         break;
2661                 case CEE_CONV_OVF_U2_UN:
2662                 case CEE_CONV_OVF_U2:
2663                         CHECK_STACK (&td, 1);
2664                         switch (td.sp [-1].type) {
2665                         case STACK_TYPE_R8:
2666                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2667                                 break;
2668                         case STACK_TYPE_I4:
2669                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2670                                 break;
2671                         case STACK_TYPE_I8:
2672                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2673                                 break;
2674                         default:
2675                                 g_assert_not_reached ();
2676                         }
2677                         ++td.ip;
2678                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2679                         break;
2680 #if SIZEOF_VOID_P == 4
2681                 case CEE_CONV_OVF_I:
2682 #endif
2683                 case CEE_CONV_OVF_I4:
2684                 case CEE_CONV_OVF_I4_UN:
2685                         CHECK_STACK (&td, 1);
2686                         switch (td.sp [-1].type) {
2687                         case STACK_TYPE_R8:
2688                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2689                                 break;
2690                         case STACK_TYPE_I4:
2691                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2692                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2693                                 break;
2694                         case STACK_TYPE_I8:
2695                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2696                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2697                                 else
2698                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2699                                 break;
2700                         default:
2701                                 g_assert_not_reached ();
2702                         }
2703                         ++td.ip;
2704                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2705                         break;
2706 #if SIZEOF_VOID_P == 4
2707                 case CEE_CONV_OVF_U:
2708 #endif
2709                 case CEE_CONV_OVF_U4:
2710                 case CEE_CONV_OVF_U4_UN:
2711                         CHECK_STACK (&td, 1);
2712                         switch (td.sp [-1].type) {
2713                         case STACK_TYPE_R8:
2714                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2715                                 break;
2716                         case STACK_TYPE_I4:
2717                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2718                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2719                                 break;
2720                         case STACK_TYPE_I8:
2721                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2722                                 break;
2723                         default:
2724                                 g_assert_not_reached ();
2725                         }
2726                         ++td.ip;
2727                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2728                         break;
2729 #if SIZEOF_VOID_P == 8
2730                 case CEE_CONV_OVF_I:
2731 #endif
2732                 case CEE_CONV_OVF_I8:
2733                         CHECK_STACK (&td, 1);
2734                         switch (td.sp [-1].type) {
2735                         case STACK_TYPE_R8:
2736                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2737                                 break;
2738                         case STACK_TYPE_I4:
2739                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2740                                 break;
2741                         case STACK_TYPE_I8:
2742                                 break;
2743                         default:
2744                                 g_assert_not_reached ();
2745                         }
2746                         ++td.ip;
2747                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2748                         break;
2749 #if SIZEOF_VOID_P == 8
2750                 case CEE_CONV_OVF_U:
2751 #endif
2752                 case CEE_CONV_OVF_U8:
2753                         CHECK_STACK (&td, 1);
2754                         switch (td.sp [-1].type) {
2755                         case STACK_TYPE_R8:
2756                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2757                                 break;
2758                         case STACK_TYPE_I4:
2759                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2760                                 break;
2761                         case STACK_TYPE_I8:
2762                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2763                                 break;
2764                         default:
2765                                 g_assert_not_reached ();
2766                         }
2767                         ++td.ip;
2768                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2769                         break;
2770                 case CEE_LDTOKEN: {
2771                         int size;
2772                         gpointer handle;
2773                         token = read32 (td.ip + 1);
2774                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2775                                 handle = mono_method_get_wrapper_data (method, token);
2776                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2777                                 if (klass == mono_defaults.typehandle_class)
2778                                         handle = &((MonoClass *) handle)->byval_arg;
2779
2780                                 if (generic_context) {
2781                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
2782                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2783                                 }
2784                         } else {
2785                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2786                         }
2787                         mono_class_init (klass);
2788                         mt = mint_type (&klass->byval_arg);
2789                         g_assert (mt == MINT_TYPE_VT);
2790                         size = mono_class_value_size (klass, NULL);
2791                         g_assert (size == sizeof(gpointer));
2792                         PUSH_VT (&td, sizeof(gpointer));
2793                         ADD_CODE (&td, MINT_LDTOKEN);
2794                         ADD_CODE (&td, get_data_item_index (&td, handle));
2795
2796                         SET_TYPE (td.sp, stack_type [mt], klass);
2797                         td.sp++;
2798                         td.ip += 5;
2799                         break;
2800                 }
2801                 case CEE_ADD_OVF:
2802                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2803                         ++td.ip;
2804                         break;
2805                 case CEE_ADD_OVF_UN:
2806                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2807                         ++td.ip;
2808                         break;
2809                 case CEE_MUL_OVF:
2810                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2811                         ++td.ip;
2812                         break;
2813                 case CEE_MUL_OVF_UN:
2814                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2815                         ++td.ip;
2816                         break;
2817                 case CEE_SUB_OVF:
2818                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2819                         ++td.ip;
2820                         break;
2821                 case CEE_SUB_OVF_UN:
2822                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2823                         ++td.ip;
2824                         break;
2825                 case CEE_ENDFINALLY:
2826                         td.sp = td.stack;
2827                         SIMPLE_OP (td, MINT_ENDFINALLY);
2828                         generating_code = 0;
2829                         break;
2830                 case CEE_LEAVE:
2831                         td.sp = td.stack;
2832                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2833                         td.ip += 5;
2834                         generating_code = 0;
2835                         break;
2836                 case CEE_LEAVE_S:
2837                         td.sp = td.stack;
2838                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2839                         td.ip += 2;
2840                         generating_code = 0;
2841                         break;
2842                 case CEE_UNUSED41:
2843                         ++td.ip;
2844                         switch (*td.ip) {
2845                                 case CEE_MONO_CALLI_EXTRA_ARG:
2846                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2847                                         ADD_CODE (&td, MINT_POP);
2848                                         ADD_CODE (&td, 1);
2849                                         --td.sp;
2850                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2851                                         break;
2852                                 case CEE_MONO_JIT_ICALL_ADDR: {
2853                                         guint32 token;
2854                                         gpointer func;
2855                                         MonoJitICallInfo *info;
2856
2857                                         token = read32 (td.ip + 1);
2858                                         td.ip += 5;
2859                                         func = mono_method_get_wrapper_data (method, token);
2860                                         info = mono_find_jit_icall_by_addr (func);
2861
2862                                         ADD_CODE (&td, MINT_LDFTN);
2863                                         ADD_CODE (&td, get_data_item_index (&td, func));
2864                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2865                                         break;
2866                                 }
2867                                 case CEE_MONO_ICALL: {
2868                                         guint32 token;
2869                                         gpointer func;
2870                                         MonoJitICallInfo *info;
2871
2872                                         token = read32 (td.ip + 1);
2873                                         td.ip += 5;
2874                                         func = mono_method_get_wrapper_data (method, token);
2875                                         info = mono_find_jit_icall_by_addr (func);
2876                                         g_assert (info);
2877
2878                                         CHECK_STACK (&td, info->sig->param_count);
2879                                         switch (info->sig->param_count) {
2880                                         case 0:
2881                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2882                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2883                                                 else
2884                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2885                                                 break;
2886                                         case 1:
2887                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2888                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2889                                                 else
2890                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2891                                                 break;
2892                                         case 2:
2893                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2894                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2895                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2896                                                         else
2897                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2898                                                 } else {
2899                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2900                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2901                                                         else
2902                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2903                                                 }
2904                                                 break;
2905                                         case 3:
2906                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2907                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2908                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2909                                                 else
2910                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2911                                                 break;
2912                                         default:
2913                                                 g_assert_not_reached ();
2914                                         }
2915
2916                                         if (func == mono_ftnptr_to_delegate) {
2917                                                 g_error ("TODO: ?");
2918                                         }
2919                                         ADD_CODE(&td, get_data_item_index (&td, func));
2920                                         td.sp -= info->sig->param_count;
2921
2922                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2923                                                 td.sp ++;
2924                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2925                                         }
2926                                         break;
2927                                 }
2928                         case CEE_MONO_VTADDR: {
2929                                 int size;
2930                                 CHECK_STACK (&td, 1);
2931                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2932                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2933                                 else
2934                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2935                                 size = (size + 7) & ~7;
2936                                 ADD_CODE(&td, MINT_VTRESULT);
2937                                 ADD_CODE(&td, 0);
2938                                 WRITE32(&td, &size);
2939                                 td.vt_sp -= size;
2940                                 ++td.ip;
2941                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2942                                 break;
2943                         }
2944                         case CEE_MONO_LDPTR:
2945                         case CEE_MONO_CLASSCONST:
2946                                 token = read32 (td.ip + 1);
2947                                 td.ip += 5;
2948                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2949                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2950                                 td.sp [0].type = STACK_TYPE_I;
2951                                 ++td.sp;
2952                                 break;
2953                         case CEE_MONO_OBJADDR:
2954                                 CHECK_STACK (&td, 1);
2955                                 ++td.ip;
2956                                 td.sp[-1].type = STACK_TYPE_MP;
2957                                 /* do nothing? */
2958                                 break;
2959                         case CEE_MONO_NEWOBJ:
2960                                 token = read32 (td.ip + 1);
2961                                 td.ip += 5;
2962                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2963                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2964                                 td.sp [0].type = STACK_TYPE_O;
2965                                 ++td.sp;
2966                                 break;
2967                         case CEE_MONO_RETOBJ:
2968                                 CHECK_STACK (&td, 1);
2969                                 token = read32 (td.ip + 1);
2970                                 td.ip += 5;
2971                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2972                                 td.sp--;
2973
2974                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2975
2976                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2977
2978                                 if (td.sp > td.stack)
2979                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2980                                 break;
2981                         case CEE_MONO_LDNATIVEOBJ:
2982                                 token = read32 (td.ip + 1);
2983                                 td.ip += 5;
2984                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2985                                 g_assert(klass->valuetype);
2986                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2987                                 break;
2988                         case CEE_MONO_TLS: {
2989                                 gint32 key = read32 (td.ip + 1);
2990                                 td.ip += 5;
2991                                 g_assert (key < TLS_KEY_NUM);
2992                                 ADD_CODE (&td, MINT_MONO_TLS);
2993                                 WRITE32 (&td, &key);
2994                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_MP);
2995                                 break;
2996                         }
2997                         case CEE_MONO_ATOMIC_STORE_I4:
2998                                 CHECK_STACK (&td, 2);
2999                                 SIMPLE_OP (td, MINT_MONO_ATOMIC_STORE_I4);
3000                                 td.sp -= 2;
3001                                 td.ip++;
3002                                 break;
3003                         case CEE_MONO_SAVE_LMF:
3004                         case CEE_MONO_RESTORE_LMF:
3005                         case CEE_MONO_NOT_TAKEN:
3006                                 ++td.ip;
3007                                 break;
3008                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
3009                                 ADD_CODE (&td, MINT_MONO_LDPTR);
3010                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
3011                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
3012                                 ++td.ip;
3013                                 break;
3014                         case CEE_MONO_JIT_ATTACH:
3015                                 ADD_CODE (&td, MINT_MONO_JIT_ATTACH);
3016                                 ++td.ip;
3017                                 break;
3018                         case CEE_MONO_JIT_DETACH:
3019                                 ADD_CODE (&td, MINT_MONO_JIT_DETACH);
3020                                 ++td.ip;
3021                                 break;
3022                         default:
3023                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
3024                         }
3025                         break;
3026 #if 0
3027                 case CEE_PREFIX7:
3028                 case CEE_PREFIX6:
3029                 case CEE_PREFIX5:
3030                 case CEE_PREFIX4:
3031                 case CEE_PREFIX3:
3032                 case CEE_PREFIX2:
3033                 case CEE_PREFIXREF: ves_abort(); break;
3034 #endif
3035                 /*
3036                  * Note: Exceptions thrown when executing a prefixed opcode need
3037                  * to take into account the number of prefix bytes (usually the
3038                  * throw point is just (ip - n_prefix_bytes).
3039                  */
3040                 case CEE_PREFIX1:
3041                         ++td.ip;
3042                         switch (*td.ip) {
3043 #if 0
3044                         case CEE_ARGLIST: ves_abort(); break;
3045 #endif
3046                         case CEE_CEQ:
3047                                 CHECK_STACK(&td, 2);
3048                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3049                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3050                                 else
3051                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
3052                                 --td.sp;
3053                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3054                                 ++td.ip;
3055                                 break;
3056                         case CEE_CGT:
3057                                 CHECK_STACK(&td, 2);
3058                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3059                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3060                                 else
3061                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3062                                 --td.sp;
3063                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3064                                 ++td.ip;
3065                                 break;
3066                         case CEE_CGT_UN:
3067                                 CHECK_STACK(&td, 2);
3068                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3069                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3070                                 else
3071                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3072                                 --td.sp;
3073                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3074                                 ++td.ip;
3075                                 break;
3076                         case CEE_CLT:
3077                                 CHECK_STACK(&td, 2);
3078                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3079                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3080                                 else
3081                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3082                                 --td.sp;
3083                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3084                                 ++td.ip;
3085                                 break;
3086                         case CEE_CLT_UN:
3087                                 CHECK_STACK(&td, 2);
3088                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3089                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3090                                 else
3091                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3092                                 --td.sp;
3093                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3094                                 ++td.ip;
3095                                 break;
3096                         case CEE_LDVIRTFTN: /* fallthrough */
3097                         case CEE_LDFTN: {
3098                                 MonoMethod *m;
3099                                 if (*td.ip == CEE_LDVIRTFTN) {
3100                                         CHECK_STACK (&td, 1);
3101                                         --td.sp;
3102                                 }
3103                                 token = read32 (td.ip + 1);
3104                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3105                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3106                                 else
3107                                         m = mono_get_method_full (image, token, NULL, generic_context);
3108
3109                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3110                                         m = mono_marshal_get_synchronized_wrapper (m);
3111
3112                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3113                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3114                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3115                                 td.ip += 5;
3116                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3117                                 break;
3118                         }
3119                         case CEE_LDARG:
3120                                 load_arg (&td, read16 (td.ip + 1));
3121                                 td.ip += 3;
3122                                 break;
3123                         case CEE_LDARGA: {
3124                                 int n = read16 (td.ip + 1);
3125                                 ADD_CODE (&td, MINT_LDARGA);
3126                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3127                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3128                                 td.ip += 3;
3129                                 break;
3130                         }
3131                         case CEE_STARG:
3132                                 store_arg (&td, read16 (td.ip + 1));
3133                                 td.ip += 3;
3134                                 break;
3135                         case CEE_LDLOC:
3136                                 load_local (&td, read16 (td.ip + 1));
3137                                 td.ip += 3;
3138                                 break;
3139                         case CEE_LDLOCA:
3140                                 ADD_CODE(&td, MINT_LDLOCA_S);
3141                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3142                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3143                                 td.ip += 3;
3144                                 break;
3145                         case CEE_STLOC:
3146                                 store_local (&td, read16 (td.ip + 1));
3147                                 td.ip += 3;
3148                                 break;
3149                         case CEE_LOCALLOC:
3150                                 CHECK_STACK (&td, 1);
3151 #if SIZEOF_VOID_P == 8
3152                                 if (td.sp [-1].type == STACK_TYPE_I8)
3153                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3154 #endif
3155                                 ADD_CODE(&td, MINT_LOCALLOC);
3156                                 if (td.sp != td.stack + 1)
3157                                         g_warning("CEE_LOCALLOC: stack not empty");
3158                                 ++td.ip;
3159                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3160                                 break;
3161 #if 0
3162                         case CEE_UNUSED57: ves_abort(); break;
3163 #endif
3164                         case CEE_ENDFILTER:
3165                                 ADD_CODE (&td, MINT_ENDFILTER);
3166                                 ++td.ip;
3167                                 break;
3168                         case CEE_UNALIGNED_:
3169                                 ++td.ip;
3170                                 /* FIX: should do something? */;
3171                                 break;
3172                         case CEE_VOLATILE_:
3173                                 ++td.ip;
3174                                 /* FIX: should do something? */;
3175                                 break;
3176                         case CEE_TAIL_:
3177                                 ++td.ip;
3178                                 /* FIX: should do something? */;
3179                                 break;
3180                         case CEE_INITOBJ:
3181                                 CHECK_STACK(&td, 1);
3182                                 token = read32 (td.ip + 1);
3183                                 klass = mini_get_class (method, token, generic_context);
3184                                 if (klass->valuetype) {
3185                                         ADD_CODE (&td, MINT_INITOBJ);
3186                                         i32 = mono_class_value_size (klass, NULL);
3187                                         WRITE32 (&td, &i32);
3188                                 } else {
3189                                         ADD_CODE (&td, MINT_LDNULL);
3190                                         ADD_CODE (&td, MINT_STIND_REF);
3191                                 }
3192                                 td.ip += 5;
3193                                 --td.sp;
3194                                 break;
3195                         case CEE_CPBLK:
3196                                 CHECK_STACK(&td, 3);
3197                                 /* FIX? convert length to I8? */
3198                                 ADD_CODE(&td, MINT_CPBLK);
3199                                 td.sp -= 3;
3200                                 ++td.ip;
3201                                 break;
3202                         case CEE_READONLY_:
3203                                 readonly = TRUE;
3204                                 td.ip += 1;
3205                                 break;
3206                         case CEE_CONSTRAINED_:
3207                                 token = read32 (td.ip + 1);
3208                                 constrained_class = mini_get_class (method, token, generic_context);
3209                                 mono_class_init (constrained_class);
3210                                 td.ip += 5;
3211                                 break;
3212                         case CEE_INITBLK:
3213                                 CHECK_STACK(&td, 3);
3214                                 ADD_CODE(&td, MINT_INITBLK);
3215                                 td.sp -= 3;
3216                                 td.ip += 1;
3217                                 break;
3218 #if 0
3219                         case CEE_NO_:
3220                                 /* FIXME: implement */
3221                                 ip += 2;
3222                                 break;
3223 #endif
3224                         case CEE_RETHROW:
3225                                 SIMPLE_OP (td, MINT_RETHROW);
3226                                 generating_code = 0;
3227                                 break;
3228                         case CEE_SIZEOF: {
3229                                 gint32 size;
3230                                 token = read32 (td.ip + 1);
3231                                 td.ip += 5;
3232                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3233                                         int align;
3234                                         MonoType *type = mono_type_create_from_typespec (image, token);
3235                                         size = mono_type_size (type, &align);
3236                                 } else {
3237                                         int align;
3238                                         MonoClass *szclass = mini_get_class (method, token, generic_context);
3239                                         mono_class_init (szclass);
3240 #if 0
3241                                         if (!szclass->valuetype)
3242                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3243 #endif
3244                                         size = mono_type_size (&szclass->byval_arg, &align);
3245                                 }
3246                                 ADD_CODE(&td, MINT_LDC_I4);
3247                                 WRITE32(&td, &size);
3248                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3249                                 break;
3250                         }
3251 #if 0
3252                         case CEE_REFANYTYPE: ves_abort(); break;
3253 #endif
3254                         default:
3255                                 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);
3256                         }
3257                         break;
3258                 default:
3259                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3260                 }
3261
3262                 if (td.new_ip - td.new_code != new_in_start_offset)
3263                         td.last_new_ip = td.new_code + new_in_start_offset;
3264                 else if (td.is_bb_start [td.in_start - td.il_code])
3265                         td.is_bb_start [td.ip - td.il_code] = 1;
3266
3267                 td.last_ip = td.in_start;
3268         }
3269
3270         if (mono_interp_traceopt) {
3271                 const guint16 *p = td.new_code;
3272                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3273                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3274                 while (p < td.new_ip) {
3275                         p = mono_interp_dis_mintop(td.new_code, p);
3276                         printf("\n");
3277                 }
3278         }
3279         g_assert (td.max_stack_height <= (header->max_stack + 1));
3280
3281         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3282         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3283         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3284         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3285         g_free (td.new_code);
3286         rtm->new_body_start = rtm->code + body_start_offset;
3287         rtm->num_clauses = header->num_clauses;
3288         for (i = 0; i < header->num_clauses; i++) {
3289                 MonoExceptionClause *c = rtm->clauses + i;
3290                 int end_off = c->try_offset + c->try_len;
3291                 c->try_offset = td.in_offsets [c->try_offset];
3292                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3293                 end_off = c->handler_offset + c->handler_len;
3294                 c->handler_offset = td.in_offsets [c->handler_offset];
3295                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3296                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3297                         c->data.filter_offset = td.in_offsets [c->data.filter_offset];
3298         }
3299         rtm->vt_stack_size = td.max_vt_sp;
3300         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3301         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3302         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3303         g_free (td.in_offsets);
3304         g_free (td.forward_refs);
3305         for (i = 0; i < header->code_size; ++i)
3306                 g_free (td.stack_state [i]);
3307         g_free (td.stack_state);
3308         g_free (td.stack_height);
3309         g_free (td.vt_stack_size);
3310         g_free (td.data_items);
3311         g_free (td.stack);
3312         g_hash_table_destroy (td.data_hash);
3313 }
3314
3315 static mono_mutex_t calc_section;
3316
3317 void
3318 mono_interp_transform_init (void)
3319 {
3320         mono_os_mutex_init_recursive(&calc_section);
3321 }
3322
3323 MonoException *
3324 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3325 {
3326         int i, align, size, offset;
3327         MonoMethod *method = runtime_method->method;
3328         MonoImage *image = method->klass->image;
3329         MonoMethodHeader *header = mono_method_get_header (method);
3330         MonoMethodSignature *signature = mono_method_signature (method);
3331         register const unsigned char *ip, *end;
3332         const MonoOpcode *opcode;
3333         MonoMethod *m;
3334         MonoClass *class;
3335         MonoDomain *domain = mono_domain_get ();
3336         unsigned char *is_bb_start;
3337         int in;
3338         MonoVTable *method_class_vt;
3339         int backwards;
3340         MonoGenericContext *generic_context = NULL;
3341
3342         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3343         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3344         if (!method_class_vt->initialized) {
3345                 MonoError error;
3346                 jmp_buf env;
3347                 MonoInvocation *last_env_frame = context->env_frame;
3348                 jmp_buf *old_env = context->current_env;
3349                 error_init (&error);
3350
3351                 if (setjmp(env)) {
3352                         MonoException *failed = context->env_frame->ex;
3353                         context->env_frame->ex = NULL;
3354                         context->env_frame = last_env_frame;
3355                         context->current_env = old_env;
3356                         return failed;
3357                 }
3358                 context->env_frame = context->current_frame;
3359                 context->current_env = &env;
3360                 mono_runtime_class_init_full (method_class_vt, &error);
3361                 if (!mono_error_ok (&error)) {
3362                         return mono_error_convert_to_exception (&error);
3363                 }
3364                 context->env_frame = last_env_frame;
3365                 context->current_env = old_env;
3366         }
3367
3368         mono_profiler_method_jit (method); /* sort of... */
3369
3370         if (mono_method_signature (method)->is_inflated)
3371                 generic_context = mono_method_get_context (method);
3372         else {
3373                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3374                 if (generic_container)
3375                         generic_context = &generic_container->context;
3376         }
3377
3378         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3379                 MonoMethod *nm = NULL;
3380                 mono_os_mutex_lock(&calc_section);
3381                 if (runtime_method->transformed) {
3382                         mono_os_mutex_unlock(&calc_section);
3383                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3384                         return NULL;
3385                 }
3386
3387                 /* assumes all internal calls with an array this are built in... */
3388                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3389                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3390                         signature = mono_method_signature (nm);
3391                 } else {
3392                         const char *name = method->name;
3393                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3394                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3395                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3396                                         g_assert (mi);
3397                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3398                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3399                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3400                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3401                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3402                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3403                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3404                                         nm = mono_marshal_get_delegate_end_invoke (method);
3405                                 }
3406                         }
3407                         if (nm == NULL) {
3408                                 runtime_method->code = g_malloc(sizeof(short));
3409                                 runtime_method->code[0] = MINT_CALLRUN;
3410                         }
3411                 }
3412                 if (nm == NULL) {
3413                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3414                         runtime_method->alloca_size = runtime_method->stack_size;
3415                         runtime_method->transformed = TRUE;
3416                         mono_os_mutex_unlock(&calc_section);
3417                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3418                         return NULL;
3419                 }
3420                 method = nm;
3421                 header = mono_method_get_header (nm);
3422                 mono_os_mutex_unlock(&calc_section);
3423         } else if (method->klass == mono_defaults.array_class) {
3424                 if (!strcmp (method->name, "UnsafeMov")) {
3425                         mono_os_mutex_lock (&calc_section);
3426                         if (!runtime_method->transformed) {
3427                                 runtime_method->code = g_malloc (sizeof (short));
3428                                 runtime_method->code[0] = MINT_CALLRUN;
3429                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
3430                                 runtime_method->alloca_size = runtime_method->stack_size;
3431                                 runtime_method->transformed = TRUE;
3432                         }
3433                         mono_os_mutex_unlock(&calc_section);
3434                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3435                         return NULL;
3436                 } else if (!strcmp (method->name, "UnsafeStore)")) {
3437                         g_error ("TODO");
3438                 } else if (!strcmp (method->name, "UnsafeLoad)")) {
3439                         g_error ("TODO");
3440                 }
3441         }
3442         g_assert ((signature->param_count + signature->hasthis) < 1000);
3443         g_assert (header->max_stack < 10000);
3444         /* intern the strings in the method. */
3445         ip = header->code;
3446         end = ip + header->code_size;
3447
3448         is_bb_start = g_malloc0(header->code_size);
3449         is_bb_start [0] = 1;
3450         while (ip < end) {
3451                 in = *ip;
3452                 if (in == 0xfe) {
3453                         ip++;
3454                         in = *ip + 256;
3455                 }
3456                 else if (in == 0xf0) {
3457                         ip++;
3458                         in = *ip + MONO_CEE_MONO_ICALL;
3459                 }
3460                 opcode = &mono_opcodes [in];
3461                 switch (opcode->argument) {
3462                 case MonoInlineNone:
3463                         ++ip;
3464                         break;
3465                 case MonoInlineString:
3466                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3467                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3468                         ip += 5;
3469                         break;
3470                 case MonoInlineType:
3471                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3472                                 class = mini_get_class (method, read32 (ip + 1), generic_context);
3473                                 mono_class_init (class);
3474                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3475 #if 0
3476                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3477                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3478                                         mono_class_vtable (domain, class);
3479 #endif
3480                         }
3481                         ip += 5;
3482                         break;
3483                 case MonoInlineMethod:
3484                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3485                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3486                                 if (m == NULL) {
3487                                         g_free (is_bb_start);
3488                                         g_error ("FIXME: where to get method and class string?");
3489                                         return NULL;
3490                                         // return mono_get_exception_missing_method ();
3491                                 }
3492                                 mono_class_init (m->klass);
3493                                 if (!mono_class_is_interface (m->klass))
3494                                         mono_class_vtable (domain, m->klass);
3495                         }
3496                         ip += 5;
3497                         break;
3498                 case MonoInlineField:
3499                 case MonoInlineSig:
3500                 case MonoInlineI:
3501                 case MonoInlineTok:
3502                 case MonoShortInlineR:
3503                         ip += 5;
3504                         break;
3505                 case MonoInlineBrTarget:
3506                         offset = read32 (ip + 1);
3507                         ip += 5;
3508                         backwards = offset < 0;
3509                         offset += ip - header->code;
3510                         g_assert (offset >= 0 && offset < header->code_size);
3511                         is_bb_start [offset] |= backwards ? 2 : 1;
3512                         break;
3513                 case MonoShortInlineBrTarget:
3514                         offset = ((gint8 *)ip) [1];
3515                         ip += 2;
3516                         backwards = offset < 0;
3517                         offset += ip - header->code;
3518                         g_assert (offset >= 0 && offset < header->code_size);
3519                         is_bb_start [offset] |= backwards ? 2 : 1;
3520                         break;
3521                 case MonoInlineVar:
3522                         ip += 3;
3523                         break;
3524                 case MonoShortInlineVar:
3525                 case MonoShortInlineI:
3526                         ip += 2;
3527                         break;
3528                 case MonoInlineSwitch: {
3529                         guint32 n;
3530                         const unsigned char *next_ip;
3531                         ++ip;
3532                         n = read32 (ip);
3533                         ip += 4;
3534                         next_ip = ip + 4 * n;
3535                         for (i = 0; i < n; i++) {
3536                                 offset = read32 (ip);
3537                                 backwards = offset < 0;
3538                                 offset += next_ip - header->code;
3539                                 g_assert (offset >= 0 && offset < header->code_size);
3540                                 is_bb_start [offset] |= backwards ? 2 : 1;
3541                                 ip += 4;
3542                         }
3543                         break;
3544                 }
3545                 case MonoInlineR:
3546                 case MonoInlineI8:
3547                         ip += 9;
3548                         break;
3549                 default:
3550                         g_assert_not_reached ();
3551                 }
3552         }
3553         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3554
3555         /* the rest needs to be locked so it is only done once */
3556         mono_os_mutex_lock(&calc_section);
3557         if (runtime_method->transformed) {
3558                 mono_os_mutex_unlock(&calc_section);
3559                 g_free (is_bb_start);
3560                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3561                 return NULL;
3562         }
3563
3564         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3565         runtime_method->stack_size = (sizeof (stackval)) * (header->max_stack + 2); /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3566         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3567         offset = 0;
3568         for (i = 0; i < header->num_locals; ++i) {
3569                 size = mono_type_size (header->locals [i], &align);
3570                 offset += align - 1;
3571                 offset &= ~(align - 1);
3572                 runtime_method->local_offsets [i] = offset;
3573                 offset += size;
3574         }
3575         offset = (offset + 7) & ~7;
3576         runtime_method->locals_size = offset;
3577         g_assert (runtime_method->locals_size < 65536);
3578         offset = 0;
3579         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3580
3581         if (signature->hasthis) {
3582                 g_assert (!signature->pinvoke);
3583                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3584                 offset += align - 1;
3585                 offset &= ~(align - 1);
3586                 runtime_method->arg_offsets [0] = offset;
3587                 offset += size;
3588         }
3589
3590         for (i = 0; i < signature->param_count; ++i) {
3591                 if (signature->pinvoke) {
3592                         guint32 dummy;
3593                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3594                         align = 8;
3595                 }
3596                 else
3597                         size = mono_type_stack_size (signature->params [i], &align);
3598                 offset += align - 1;
3599                 offset &= ~(align - 1);
3600                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3601                 offset += size;
3602         }
3603         offset = (offset + 7) & ~7;
3604         runtime_method->args_size = offset;
3605         g_assert (runtime_method->args_size < 10000);
3606
3607         generate (method, runtime_method, is_bb_start, generic_context);
3608
3609         g_free (is_bb_start);
3610
3611         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3612         runtime_method->transformed = TRUE;
3613         mono_os_mutex_unlock(&calc_section);
3614
3615         return NULL;
3616 }
3617