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 #include <mono/metadata/seq-points-data.h>
  19
  20 #include <mono/mini/mini.h>
  21
  22 #include "mintops.h"
  23 #include "interp-internals.h"
  24 #include "interp.h"
  25
  26 // TODO: export from marshal.c
  27 MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
  28
  29 #define DEBUG 0
  30
  31 typedef struct
  32 {
  33         MonoClass *klass;
  34         unsigned char type;
  35         unsigned char flags;
  36 } StackInfo;
  37
  38 typedef struct {
  39         guint8 *ip;
  40         GSList *preds;
  41         GSList *seq_points;
  42         SeqPoint *last_seq_point;
  43
  44         // This will hold a list of last sequence points of incoming basic blocks
  45         SeqPoint **pred_seq_points;
  46         guint num_pred_seq_points;
  47 } InterpBasicBlock;
  48
  49 typedef enum {
  50         RELOC_SHORT_BRANCH,
  51         RELOC_LONG_BRANCH,
  52         RELOC_SWITCH
  53 } RelocType;
  54
  55 typedef struct {
  56         RelocType type;
  57         /* In the interpreter IR */
  58         int offset;
  59         /* In the IL code */
  60         int target;
  61 } Reloc;
  62
  63 typedef struct
  64 {
  65         MonoMethod *method;
  66         MonoMethodHeader *header;
  67         InterpMethod *rtm;
  68         const unsigned char *il_code;
  69         const unsigned char *ip;
  70         const unsigned char *last_ip;
  71         const unsigned char *in_start;
  72         int code_size;
  73         int *in_offsets;
  74         StackInfo **stack_state;
  75         int *stack_height;
  76         int *vt_stack_size;
  77         unsigned char *is_bb_start;
  78         unsigned short *new_code;
  79         unsigned short *new_code_end;
  80         unsigned short *new_ip;
  81         unsigned short *last_new_ip;
  82         unsigned int max_code_size;
  83         StackInfo *stack;
  84         StackInfo *sp;
  85         unsigned int max_stack_height;
  86         unsigned int vt_sp;
  87         unsigned int max_vt_sp;
  88         int n_data_items;
  89         int max_data_items;
  90         void **data_items;
  91         GHashTable *data_hash;
  92         int *clause_indexes;
  93         gboolean gen_sdb_seq_points;
  94         GPtrArray *seq_points;
  95         InterpBasicBlock **offset_to_bb;
  96         InterpBasicBlock *entry_bb;
  97         MonoMemPool     *mempool;
  98         GList *basic_blocks;
  99         GPtrArray *relocs;
 100         gboolean verbose_level;
 101 } TransformData;
 102
 103 #define MINT_TYPE_I1 0
 104 #define MINT_TYPE_U1 1
 105 #define MINT_TYPE_I2 2
 106 #define MINT_TYPE_U2 3
 107 #define MINT_TYPE_I4 4
 108 #define MINT_TYPE_I8 5
 109 #define MINT_TYPE_R4 6
 110 #define MINT_TYPE_R8 7
 111 #define MINT_TYPE_O  8
 112 #define MINT_TYPE_P  9
 113 #define MINT_TYPE_VT 10
 114
 115 #define STACK_TYPE_I4 0
 116 #define STACK_TYPE_I8 1
 117 #define STACK_TYPE_R8 2
 118 #define STACK_TYPE_O  3
 119 #define STACK_TYPE_VT 4
 120 #define STACK_TYPE_MP 5
 121 #define STACK_TYPE_F  6
 122
 123 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
 124
 125 #if SIZEOF_VOID_P == 8
 126 #define STACK_TYPE_I STACK_TYPE_I8
 127 #else
 128 #define STACK_TYPE_I STACK_TYPE_I4
 129 #endif
 130
 131 static int stack_type [] = {
 132         STACK_TYPE_I4, /*I1*/
 133         STACK_TYPE_I4, /*U1*/
 134         STACK_TYPE_I4, /*I2*/
 135         STACK_TYPE_I4, /*U2*/
 136         STACK_TYPE_I4, /*I4*/
 137         STACK_TYPE_I8, /*I8*/
 138         STACK_TYPE_R8, /*R4*/
 139         STACK_TYPE_R8, /*R8*/
 140         STACK_TYPE_O,  /*O*/
 141         STACK_TYPE_MP, /*P*/
 142         STACK_TYPE_VT
 143 };
 144
 145 static void
 146 grow_code (TransformData *td)
 147 {
 148         unsigned int old_ip_offset = td->new_ip - td->new_code;
 149         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 150         g_assert (old_ip_offset <= td->max_code_size);
 151         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 152         td->new_code_end = td->new_code + td->max_code_size;
 153         td->new_ip = td->new_code + old_ip_offset;
 154         td->last_new_ip = td->new_code + old_last_ip_offset;
 155 }
 156
 157 #define ENSURE_CODE(td, n) \
 158         do { \
 159                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 160                         grow_code (td); \
 161         } while (0)
 162
 163 #define ADD_CODE(td, n) \
 164         do { \
 165                 if ((td)->new_ip == (td)->new_code_end) \
 166                         grow_code (td); \
 167                 *(td)->new_ip++ = (n); \
 168         } while (0)
 169
 170 #define CHECK_STACK(td, n) \
 171         do { \
 172                 int stack_size = (td)->sp - (td)->stack; \
 173                 if (stack_size < (n)) \
 174                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 175                                 (td)->method->klass->name, (td)->method->name, \
 176                                 stack_size, n, (td)->ip - (td)->il_code); \
 177         } while (0)
 178
 179 #define ENSURE_I4(td, sp_off) \
 180         do { \
 181                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 182                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 183         } while (0)
 184
 185 static void
 186 handle_branch (TransformData *td, int short_op, int long_op, int offset)
 187 {
 188         int shorten_branch = 0;
 189         int target = td->ip + offset - td->il_code;
 190         if (target < 0 || target >= td->code_size)
 191                 g_assert_not_reached ();
 192         if (offset > 0 && td->stack_height [target] < 0) {
 193                 td->stack_height [target] = td->sp - td->stack;
 194                 if (td->stack_height [target] > 0)
 195                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 196                 td->vt_stack_size [target] = td->vt_sp;
 197         }
 198         if (offset < 0) {
 199                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 200                 if (offset >= -32768) {
 201                         shorten_branch = 1;
 202                 }
 203         } else {
 204                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 205                         shorten_branch = 1;
 206
 207                 Reloc *reloc = mono_mempool_alloc0 (td->mempool, sizeof (Reloc));
 208                 if (shorten_branch) {
 209                         offset = 0xffff;
 210                         reloc->type = RELOC_SHORT_BRANCH;
 211                 } else {
 212                         offset = 0xdeadbeef;
 213                         reloc->type = RELOC_LONG_BRANCH;
 214                 }
 215                 reloc->offset = td->new_ip - td->new_code;
 216                 reloc->target = target;
 217                 g_ptr_array_add (td->relocs, reloc);
 218         }
 219         if (shorten_branch) {
 220                 ADD_CODE(td, short_op);
 221                 ADD_CODE(td, offset);
 222         } else {
 223                 ADD_CODE(td, long_op);
 224                 ADD_CODE(td, * (unsigned short *)(&offset));
 225                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 226         }
 227 }
 228
 229 static void
 230 one_arg_branch(TransformData *td, int mint_op, int offset)
 231 {
 232         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 233         int long_op = mint_op + type - STACK_TYPE_I4;
 234         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 235         CHECK_STACK(td, 1);
 236         --td->sp;
 237         handle_branch (td, short_op, long_op, offset);
 238 }
 239
 240 static void
 241 two_arg_branch(TransformData *td, int mint_op, int offset)
 242 {
 243         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 244         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 245         int long_op = mint_op + type1 - STACK_TYPE_I4;
 246         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 247         CHECK_STACK(td, 2);
 248         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 249                 ADD_CODE(td, MINT_CONV_I8_I4);
 250                 td->in_offsets [td->ip - td->il_code]++;
 251         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 252                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 253                 td->in_offsets [td->ip - td->il_code]++;
 254         } else if (type1 != type2) {
 255                 g_warning("%s.%s: branch type mismatch %d %d",
 256                         td->method->klass->name, td->method->name,
 257                         td->sp [-1].type, td->sp [-2].type);
 258         }
 259         td->sp -= 2;
 260         handle_branch (td, short_op, long_op, offset);
 261 }
 262
 263 static void
 264 unary_arith_op(TransformData *td, int mint_op)
 265 {
 266         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 267         CHECK_STACK(td, 1);
 268         ADD_CODE(td, op);
 269 }
 270
 271 static void
 272 binary_arith_op(TransformData *td, int mint_op)
 273 {
 274         int type1 = td->sp [-2].type;
 275         int type2 = td->sp [-1].type;
 276         int op;
 277 #if SIZEOF_VOID_P == 8
 278         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 279                 ADD_CODE(td, MINT_CONV_I8_I4);
 280                 type2 = STACK_TYPE_I8;
 281         }
 282         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 283                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 284                 type1 = STACK_TYPE_I8;
 285                 td->sp [-2].type = STACK_TYPE_I8;
 286         }
 287 #endif
 288         if (type1 == STACK_TYPE_MP)
 289                 type1 = STACK_TYPE_I;
 290         if (type2 == STACK_TYPE_MP)
 291                 type2 = STACK_TYPE_I;
 292         if (type1 != type2) {
 293                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 294                         td->method->klass->name, td->method->name,
 295                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 296         }
 297         op = mint_op + type1 - STACK_TYPE_I4;
 298         CHECK_STACK(td, 2);
 299         ADD_CODE(td, op);
 300         --td->sp;
 301 }
 302
 303 static void
 304 shift_op(TransformData *td, int mint_op)
 305 {
 306         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 307         CHECK_STACK(td, 2);
 308         if (td->sp [-1].type != STACK_TYPE_I4) {
 309                 g_warning("%s.%s: shift type mismatch %d",
 310                         td->method->klass->name, td->method->name,
 311                         td->sp [-2].type);
 312         }
 313         ADD_CODE(td, op);
 314         --td->sp;
 315 }
 316
 317 static int
 318 mint_type(MonoType *type)
 319 {
 320         if (type->byref)
 321                 return MINT_TYPE_P;
 322 enum_type:
 323         switch (type->type) {
 324         case MONO_TYPE_I1:
 325                 return MINT_TYPE_I1;
 326         case MONO_TYPE_U1:
 327         case MONO_TYPE_BOOLEAN:
 328                 return MINT_TYPE_U1;
 329         case MONO_TYPE_I2:
 330                 return MINT_TYPE_I2;
 331         case MONO_TYPE_U2:
 332         case MONO_TYPE_CHAR:
 333                 return MINT_TYPE_U2;
 334         case MONO_TYPE_I4:
 335         case MONO_TYPE_U4:
 336                 return MINT_TYPE_I4;
 337         case MONO_TYPE_I:
 338         case MONO_TYPE_U:
 339 #if SIZEOF_VOID_P == 4
 340                 return MINT_TYPE_I4;
 341 #else
 342                 return MINT_TYPE_I8;
 343 #endif
 344         case MONO_TYPE_PTR:
 345                 return MINT_TYPE_P;
 346         case MONO_TYPE_R4:
 347                 return MINT_TYPE_R4;
 348         case MONO_TYPE_I8:
 349         case MONO_TYPE_U8:
 350                 return MINT_TYPE_I8;
 351         case MONO_TYPE_R8:
 352                 return MINT_TYPE_R8;
 353         case MONO_TYPE_STRING:
 354         case MONO_TYPE_SZARRAY:
 355         case MONO_TYPE_CLASS:
 356         case MONO_TYPE_OBJECT:
 357         case MONO_TYPE_ARRAY:
 358                 return MINT_TYPE_O;
 359         case MONO_TYPE_VALUETYPE:
 360                 if (type->data.klass->enumtype) {
 361                         type = mono_class_enum_basetype (type->data.klass);
 362                         goto enum_type;
 363                 } else
 364                         return MINT_TYPE_VT;
 365         case MONO_TYPE_TYPEDBYREF:
 366                 return MINT_TYPE_VT;
 367         case MONO_TYPE_GENERICINST:
 368                 type = &type->data.generic_class->container_class->byval_arg;
 369                 goto enum_type;
 370         default:
 371                 g_warning ("got type 0x%02x", type->type);
 372                 g_assert_not_reached ();
 373         }
 374         return -1;
 375 }
 376
 377 static int
 378 can_store (int stack_type, int var_type)
 379 {
 380         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 381                 stack_type = STACK_TYPE_I;
 382         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 383                 var_type = STACK_TYPE_I;
 384         return stack_type == var_type;
 385 }
 386
 387 #define SET_SIMPLE_TYPE(s, ty) \
 388         do { \
 389                 (s)->type = (ty); \
 390                 (s)->flags = 0; \
 391                 (s)->klass = NULL; \
 392         } while (0)
 393
 394 #define SET_TYPE(s, ty, k) \
 395         do { \
 396                 (s)->type = (ty); \
 397                 (s)->flags = 0; \
 398                 (s)->klass = k; \
 399         } while (0)
 400
 401 #define PUSH_SIMPLE_TYPE(td, ty) \
 402         do { \
 403                 int sp_height; \
 404                 (td)->sp++; \
 405                 sp_height = (td)->sp - (td)->stack; \
 406                 if (sp_height > (td)->max_stack_height) \
 407                         (td)->max_stack_height = sp_height; \
 408                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 409         } while (0)
 410
 411 #define PUSH_TYPE(td, ty, k) \
 412         do { \
 413                 int sp_height; \
 414                 (td)->sp++; \
 415                 sp_height = (td)->sp - (td)->stack; \
 416                 if (sp_height > (td)->max_stack_height) \
 417                         (td)->max_stack_height = sp_height; \
 418                 SET_TYPE((td)->sp - 1, ty, k); \
 419         } while (0)
 420
 421 #define PUSH_VT(td, size) \
 422         do { \
 423                 (td)->vt_sp += ((size) + 7) & ~7; \
 424                 if ((td)->vt_sp > (td)->max_vt_sp) \
 425                         (td)->max_vt_sp = (td)->vt_sp; \
 426         } while (0)
 427
 428 #define POP_VT(td, size) \
 429         do { \
 430                 (td)->vt_sp -= ((size) + 7) & ~7; \
 431         } while (0)
 432
 433 #if NO_UNALIGNED_ACCESS
 434 #define WRITE32(td, v) \
 435         do { \
 436                 ENSURE_CODE(td, 2); \
 437                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 438                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 439                 (td)->new_ip += 2; \
 440         } while (0)
 441
 442 #define WRITE64(td, v) \
 443         do { \
 444                 ENSURE_CODE(td, 4); \
 445                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 446                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 447                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 448                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 449                 (td)->new_ip += 4; \
 450         } while (0)
 451 #else
 452 #define WRITE32(td, v) \
 453         do { \
 454                 ENSURE_CODE(td, 2); \
 455                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 456                 (td)->new_ip += 2; \
 457         } while (0)
 458
 459 #define WRITE64(td, v) \
 460         do { \
 461                 ENSURE_CODE(td, 4); \
 462                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 463                 (td)->new_ip += 4; \
 464         } while (0)
 465
 466 #endif
 467
 468 static void
 469 load_arg(TransformData *td, int n)
 470 {
 471         int mt;
 472         MonoClass *klass = NULL;
 473         MonoType *type;
 474
 475         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 476         if (hasthis && n == 0)
 477                 type = &td->method->klass->byval_arg;
 478         else
 479                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 480
 481         mt = mint_type (type);
 482         if (mt == MINT_TYPE_VT) {
 483                 gint32 size;
 484                 klass = mono_class_from_mono_type (type);
 485                 if (mono_method_signature (td->method)->pinvoke)
 486                         size = mono_class_native_size (klass, NULL);
 487                 else
 488                         size = mono_class_value_size (klass, NULL);
 489
 490                 if (hasthis && n == 0) {
 491                         mt = MINT_TYPE_P;
 492                         ADD_CODE (td, MINT_LDARG_P);
 493                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 494                         klass = NULL;
 495                 } else {
 496                         PUSH_VT (td, size);
 497                         ADD_CODE (td, MINT_LDARG_VT);
 498                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 499                         WRITE32 (td, &size);
 500                 }
 501         } else {
 502                 if (hasthis && n == 0) {
 503                         mt = MINT_TYPE_P;
 504                         ADD_CODE (td, MINT_LDARG_P);
 505                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 506                         klass = NULL;
 507                 } else {
 508                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 509                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 510                         if (mt == MINT_TYPE_O)
 511                                 klass = mono_class_from_mono_type (type);
 512                 }
 513         }
 514         PUSH_TYPE(td, stack_type[mt], klass);
 515 }
 516
 517 static void
 518 store_arg(TransformData *td, int n)
 519 {
 520         int mt;
 521         CHECK_STACK (td, 1);
 522         MonoType *type;
 523
 524         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 525         if (hasthis && n == 0)
 526                 type = &td->method->klass->byval_arg;
 527         else
 528                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 529
 530         mt = mint_type (type);
 531         if (mt == MINT_TYPE_VT) {
 532                 gint32 size;
 533                 MonoClass *klass = mono_class_from_mono_type (type);
 534                 if (mono_method_signature (td->method)->pinvoke)
 535                         size = mono_class_native_size (klass, NULL);
 536                 else
 537                         size = mono_class_value_size (klass, NULL);
 538                 ADD_CODE(td, MINT_STARG_VT);
 539                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 540                 WRITE32(td, &size);
 541                 if (td->sp [-1].type == STACK_TYPE_VT)
 542                         POP_VT(td, size);
 543         } else {
 544                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 545                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 546         }
 547         --td->sp;
 548 }
 549
 550 static void
 551 store_inarg(TransformData *td, int n)
 552 {
 553         MonoType *type;
 554         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 555         if (hasthis && n == 0)
 556                 type = &td->method->klass->byval_arg;
 557         else
 558                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 559
 560         int mt = mint_type (type);
 561         if (hasthis && n == 0) {
 562                 ADD_CODE (td, MINT_STINARG_P);
 563                 ADD_CODE (td, n);
 564                 return;
 565         }
 566         if (mt == MINT_TYPE_VT) {
 567                 MonoClass *klass = mono_class_from_mono_type (type);
 568                 gint32 size;
 569                 if (mono_method_signature (td->method)->pinvoke)
 570                         size = mono_class_native_size (klass, NULL);
 571                 else
 572                         size = mono_class_value_size (klass, NULL);
 573                 ADD_CODE(td, MINT_STINARG_VT);
 574                 ADD_CODE(td, n);
 575                 WRITE32(td, &size);
 576         } else {
 577                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 578                 ADD_CODE(td, n);
 579         }
 580 }
 581
 582 static void
 583 load_local(TransformData *td, int n)
 584 {
 585         MonoType *type = td->header->locals [n];
 586         int mt = mint_type (type);
 587         int offset = td->rtm->local_offsets [n];
 588         MonoClass *klass = NULL;
 589         if (mt == MINT_TYPE_VT) {
 590                 klass = mono_class_from_mono_type (type);
 591                 gint32 size = mono_class_value_size (klass, NULL);
 592                 PUSH_VT(td, size);
 593                 ADD_CODE(td, MINT_LDLOC_VT);
 594                 ADD_CODE(td, offset); /*FIX for large offset */
 595                 WRITE32(td, &size);
 596         } else {
 597                 g_assert (mt < MINT_TYPE_VT);
 598                 if (!td->gen_sdb_seq_points &&
 599                         mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 600                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 601                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 602                 } else if (!td->gen_sdb_seq_points &&
 603                                    mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 604                                    td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 605                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 606                 } else {
 607                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 608                         ADD_CODE(td, offset); /*FIX for large offset */
 609                 }
 610                 if (mt == MINT_TYPE_O)
 611                         klass = mono_class_from_mono_type (type);
 612         }
 613         PUSH_TYPE(td, stack_type[mt], klass);
 614 }
 615
 616 static void
 617 store_local(TransformData *td, int n)
 618 {
 619         MonoType *type = td->header->locals [n];
 620         int mt = mint_type (type);
 621         int offset = td->rtm->local_offsets [n];
 622         CHECK_STACK (td, 1);
 623 #if SIZEOF_VOID_P == 8
 624         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 625                 ADD_CODE(td, MINT_CONV_I8_I4);
 626                 td->sp [-1].type = STACK_TYPE_I8;
 627         }
 628 #endif
 629         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 630                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 631                         td->method->klass->name, td->method->name,
 632                         stack_type [mt], td->sp [-1].type);
 633         }
 634         if (mt == MINT_TYPE_VT) {
 635                 MonoClass *klass = mono_class_from_mono_type (type);
 636                 gint32 size = mono_class_value_size (klass, NULL);
 637                 ADD_CODE(td, MINT_STLOC_VT);
 638                 ADD_CODE(td, offset); /*FIX for large offset */
 639                 WRITE32(td, &size);
 640                 if (td->sp [-1].type == STACK_TYPE_VT)
 641                         POP_VT(td, size);
 642         } else {
 643                 g_assert (mt < MINT_TYPE_VT);
 644                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 645                 ADD_CODE(td, offset); /*FIX for large offset */
 646         }
 647         --td->sp;
 648 }
 649
 650 #define SIMPLE_OP(td, op) \
 651         do { \
 652                 ADD_CODE(td, op); \
 653                 ++td->ip; \
 654         } while (0)
 655
 656 static guint16
 657 get_data_item_index (TransformData *td, void *ptr)
 658 {
 659         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 660         guint index;
 661         if (p != NULL)
 662                 return GPOINTER_TO_UINT (p) - 1;
 663         if (td->max_data_items == td->n_data_items) {
 664                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 665                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 666         }
 667         index = td->n_data_items;
 668         td->data_items [index] = ptr;
 669         ++td->n_data_items;
 670         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 671         return index;
 672 }
 673
 674 static gboolean
 675 jit_call_supported (MonoMethod *method, MonoMethodSignature *sig)
 676 {
 677         GSList *l;
 678
 679         if (sig->param_count > 6)
 680                 return FALSE;
 681         if (sig->pinvoke)
 682                 return FALSE;
 683         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 684                 return FALSE;
 685         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
 686                 return FALSE;
 687         if (method->is_inflated)
 688                 return FALSE;
 689         if (method->string_ctor)
 690                 return FALSE;
 691
 692         for (l = jit_classes; l; l = l->next) {
 693                 char *class_name = l->data;
 694                 // FIXME: Namespaces
 695                 if (!strcmp (method->klass->name, class_name))
 696                         return TRUE;
 697         }
 698
 699         //return TRUE;
 700         return FALSE;
 701 }
 702
 703 static void
 704 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)
 705 {
 706         MonoImage *image = method->klass->image;
 707         MonoMethodSignature *csignature;
 708         MonoError error;
 709         int virtual = *td->ip == CEE_CALLVIRT;
 710         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 711         int i;
 712         guint32 vt_stack_used = 0;
 713         guint32 vt_res_size = 0;
 714         int op = -1;
 715         int native = 0;
 716         int is_void = 0;
 717
 718         guint32 token = read32 (td->ip + 1);
 719
 720         if (target_method == NULL) {
 721                 if (calli) {
 722                         CHECK_STACK(td, 1);
 723                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 724                         --td->sp;
 725                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 726                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 727                         else
 728                                 csignature = mono_metadata_parse_signature (image, token);
 729
 730                         if (generic_context) {
 731                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 732                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 733                         }
 734
 735                         target_method = NULL;
 736                 } else {
 737                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 738                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 739                         else
 740                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 741                         csignature = mono_method_signature (target_method);
 742
 743                         if (generic_context) {
 744                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 745                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 746                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 747                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 748                         }
 749                 }
 750         } else {
 751                 csignature = mono_method_signature (target_method);
 752         }
 753
 754         if (target_method && target_method->string_ctor) {
 755                 /* Create the real signature */
 756                 MonoMethodSignature *ctor_sig = mono_metadata_signature_dup_mempool (td->mempool, csignature);
 757                 ctor_sig->ret = &mono_defaults.string_class->byval_arg;
 758
 759                 csignature = ctor_sig;
 760         }
 761
 762         /* Intrinsics */
 763         if (target_method) {
 764                 if (target_method->klass == mono_defaults.string_class) {
 765                         if (target_method->name [0] == 'g') {
 766                                 if (strcmp (target_method->name, "get_Chars") == 0)
 767                                         op = MINT_GETCHR;
 768                                 else if (strcmp (target_method->name, "get_Length") == 0)
 769                                         op = MINT_STRLEN;
 770                         }
 771                 } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 772                         if (!strcmp (target_method->name, "get_Rank")) {
 773                                 op = MINT_ARRAY_RANK;
 774                         } else if (!strcmp (target_method->name, "get_Length")) {
 775                                 op = MINT_LDLEN;
 776                         } else if (!strcmp (target_method->name, "Address")) {
 777                                 op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 778                         }
 779                 } else if (target_method->klass->image == mono_defaults.corlib &&
 780                                    (strcmp (target_method->klass->name_space, "System.Diagnostics") == 0) &&
 781                                    (strcmp (target_method->klass->name, "Debugger") == 0)) {
 782                         if (!strcmp (target_method->name, "Break") && csignature->param_count == 0) {
 783                                 if (mini_should_insert_breakpoint (method))
 784                                         op = MINT_BREAK;
 785                         }
 786                 }
 787         }
 788
 789         if (constrained_class) {
 790                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 791                         /* Use the corresponding method from the base type to avoid boxing */
 792                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 793                         g_assert (base_type);
 794                         constrained_class = mono_class_from_mono_type (base_type);
 795                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 796                         g_assert (target_method);
 797                 }
 798         }
 799
 800         if (constrained_class) {
 801                 mono_class_setup_vtable (constrained_class);
 802 #if DEBUG_INTERP
 803                 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);
 804 #endif
 805                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 806 #if DEBUG_INTERP
 807                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 808 #endif
 809                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 810                 mono_class_setup_vtable (target_method->klass);
 811
 812                 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)) {
 813                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 814                                 /* managed pointer on the stack, we need to deref that puppy */
 815                                 ADD_CODE (td, MINT_LDIND_I);
 816                                 ADD_CODE (td, csignature->param_count);
 817                         }
 818                         ADD_CODE (td, MINT_BOX);
 819                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 820                         ADD_CODE (td, csignature->param_count);
 821                 } else if (!constrained_class->valuetype) {
 822                         /* managed pointer on the stack, we need to deref that puppy */
 823                         ADD_CODE (td, MINT_LDIND_I);
 824                         ADD_CODE (td, csignature->param_count);
 825                 } else {
 826                         if (target_method->klass->valuetype) {
 827                                 /* Own method */
 828                         } else {
 829                                 /* Interface method */
 830                                 int ioffset, slot;
 831
 832                                 mono_class_setup_vtable (constrained_class);
 833                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 834                                 if (ioffset == -1)
 835                                         g_error ("type load error: constrained_class");
 836                                 slot = mono_method_get_vtable_slot (target_method);
 837                                 if (slot == -1)
 838                                         g_error ("type load error: target_method->klass");
 839                                 target_method = constrained_class->vtable [ioffset + slot];
 840
 841                                 if (target_method->klass == mono_defaults.enum_class) {
 842                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 843                                                 /* managed pointer on the stack, we need to deref that puppy */
 844                                                 ADD_CODE (td, MINT_LDIND_I);
 845                                                 ADD_CODE (td, csignature->param_count);
 846                                         }
 847                                         ADD_CODE (td, MINT_BOX);
 848                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 849                                         ADD_CODE (td, csignature->param_count);
 850                                 }
 851                         }
 852                         virtual = FALSE;
 853                 }
 854         }
 855
 856         if (target_method)
 857                 mono_class_init (target_method->klass);
 858
 859         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 860         if (!calli && op == -1 && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 861                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 862                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0 &&
 863                 !(target_method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING)) {
 864                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 865                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 866
 867                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 868                         int offset;
 869                         if (td->verbose_level)
 870                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 871
 872                         for (i = csignature->param_count - 1 + !!csignature->hasthis; i >= 0; --i)
 873                                 store_arg (td, i);
 874
 875                         ADD_CODE(td, MINT_BR_S);
 876                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 877                         ADD_CODE(td, offset);
 878                         if (!is_bb_start [td->ip + 5 - td->il_code])
 879                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 880                         td->ip += 5;
 881                         return;
 882                 } else {
 883                         /* mheader might not exist if this is a delegate invoc, etc */
 884                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 885                                 if (td->verbose_level)
 886                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 887                                 for (i = 0; i < csignature->param_count; i++) {
 888                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 889                                         ADD_CODE (td, 0);
 890                                 }
 891                                 if (csignature->hasthis) {
 892                                         if (virtual)
 893                                                 ADD_CODE(td, MINT_CKNULL);
 894                                         ADD_CODE (td, MINT_POP);
 895                                         ADD_CODE (td, 0);
 896                                 }
 897                                 td->sp -= csignature->param_count + csignature->hasthis;
 898                                 td->ip += 5;
 899                                 return;
 900                         }
 901                 }
 902         }
 903         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 904                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 905                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 906                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 907                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 908         }
 909         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 910         td->sp -= csignature->param_count + !!csignature->hasthis;
 911         for (i = 0; i < csignature->param_count; ++i) {
 912                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 913                         gint32 size;
 914                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 915                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 916                                 size = mono_class_native_size (klass, NULL);
 917                         else
 918                                 size = mono_class_value_size (klass, NULL);
 919                         size = (size + 7) & ~7;
 920                         vt_stack_used += size;
 921                 }
 922         }
 923
 924         /* need to handle typedbyref ... */
 925         if (csignature->ret->type != MONO_TYPE_VOID) {
 926                 int mt = mint_type(csignature->ret);
 927                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 928                 if (mt == MINT_TYPE_VT) {
 929                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 930                                 vt_res_size = mono_class_native_size (klass, NULL);
 931                         else
 932                                 vt_res_size = mono_class_value_size (klass, NULL);
 933                         PUSH_VT(td, vt_res_size);
 934                 }
 935                 PUSH_TYPE(td, stack_type[mt], klass);
 936         } else
 937                 is_void = TRUE;
 938
 939         if (op >= 0) {
 940                 ADD_CODE (td, op);
 941 #if SIZEOF_VOID_P == 8
 942                 if (op == MINT_LDLEN)
 943                         ADD_CODE (td, MINT_CONV_I4_I8);
 944 #endif
 945                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 946                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 947                         ADD_CODE (td, 1 + target_method->klass->rank);
 948                 }
 949         } else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
 950                 ADD_CODE(td, MINT_JIT_CALL);
 951                 ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_imethod (domain, target_method, &error)));
 952                 mono_error_assert_ok (&error);
 953         } else {
 954                 if (calli)
 955                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 956                 else if (virtual)
 957                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 958                 else
 959                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 960
 961                 if (calli) {
 962                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 963                 } else {
 964                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_imethod (domain, target_method, &error)));
 965                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 966                 }
 967         }
 968         td->ip += 5;
 969         if (vt_stack_used != 0 || vt_res_size != 0) {
 970                 ADD_CODE(td, MINT_VTRESULT);
 971                 ADD_CODE(td, vt_res_size);
 972                 WRITE32(td, &vt_stack_used);
 973                 td->vt_sp -= vt_stack_used;
 974         }
 975 }
 976
 977 static MonoClassField *
 978 interp_field_from_token (MonoMethod *method, guint32 token, MonoClass **klass, MonoGenericContext *generic_context)
 979 {
 980         MonoClassField *field = NULL;
 981         if (method->wrapper_type != MONO_WRAPPER_NONE) {
 982                 field = (MonoClassField *) mono_method_get_wrapper_data (method, token);
 983                 *klass = field->parent;
 984         } else {
 985                 MonoError error;
 986                 error_init (&error);
 987                 field = mono_field_from_token_checked (method->klass->image, token, klass, generic_context, &error);
 988                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 989         }
 990         return field;
 991 }
 992
 993 static InterpBasicBlock*
 994 get_bb (TransformData *td, InterpBasicBlock *cbb, unsigned char *ip)
 995 {
 996         int offset = ip - td->il_code;
 997         InterpBasicBlock *bb = td->offset_to_bb [offset];
 998
 999         if (!bb) {
1000                 bb = mono_mempool_alloc0 (td->mempool, sizeof (InterpBasicBlock));
1001                 bb->ip = ip;
1002                 td->offset_to_bb [offset] = bb;
1003
1004                 td->basic_blocks = g_list_append_mempool (td->mempool, td->basic_blocks, bb);
1005         }
1006
1007         if (cbb)
1008                 bb->preds = g_slist_prepend_mempool (td->mempool, bb->preds, cbb);
1009         return bb;
1010 }
1011
1012 /*
1013  * get_basic_blocks:
1014  *
1015  *   Compute the set of IL level basic blocks.
1016  */
1017 static void
1018 get_basic_blocks (TransformData *td)
1019 {
1020         guint8 *start = (guint8*)td->il_code;
1021         guint8 *end = (guint8*)td->il_code + td->code_size;
1022         guint8 *ip = start;
1023         unsigned char *target;
1024         int i;
1025         guint cli_addr;
1026         const MonoOpcode *opcode;
1027         InterpBasicBlock *cbb;
1028
1029         td->offset_to_bb = mono_mempool_alloc0 (td->mempool, sizeof (InterpBasicBlock*) * (end - start + 1));
1030         td->entry_bb = cbb = get_bb (td, NULL, start);
1031
1032         while (ip < end) {
1033                 cli_addr = ip - start;
1034                 td->offset_to_bb [cli_addr] = cbb;
1035                 i = mono_opcode_value ((const guint8 **)&ip, end);
1036                 opcode = &mono_opcodes [i];
1037                 switch (opcode->argument) {
1038                 case MonoInlineNone:
1039                         ip++;
1040                         break;
1041                 case MonoInlineString:
1042                 case MonoInlineType:
1043                 case MonoInlineField:
1044                 case MonoInlineMethod:
1045                 case MonoInlineTok:
1046                 case MonoInlineSig:
1047                 case MonoShortInlineR:
1048                 case MonoInlineI:
1049                         ip += 5;
1050                         break;
1051                 case MonoInlineVar:
1052                         ip += 3;
1053                         break;
1054                 case MonoShortInlineVar:
1055                 case MonoShortInlineI:
1056                         ip += 2;
1057                         break;
1058                 case MonoShortInlineBrTarget:
1059                         target = start + cli_addr + 2 + (signed char)ip [1];
1060                         get_bb (td, cbb, target);
1061                         ip += 2;
1062                         cbb = get_bb (td, cbb, ip);
1063                         break;
1064                 case MonoInlineBrTarget:
1065                         target = start + cli_addr + 5 + (gint32)read32 (ip + 1);
1066                         get_bb (td, cbb, target);
1067                         ip += 5;
1068                         cbb = get_bb (td, cbb, ip);
1069                         break;
1070                 case MonoInlineSwitch: {
1071                         guint32 n = read32 (ip + 1);
1072                         guint32 j;
1073                         ip += 5;
1074                         cli_addr += 5 + 4 * n;
1075                         target = start + cli_addr;
1076                         get_bb (td, cbb, target);
1077
1078                         for (j = 0; j < n; ++j) {
1079                                 target = start + cli_addr + (gint32)read32 (ip);
1080                                 get_bb (td, cbb, target);
1081                                 ip += 4;
1082                         }
1083                         cbb = get_bb (td, cbb, ip);
1084                         break;
1085                 }
1086                 case MonoInlineR:
1087                 case MonoInlineI8:
1088                         ip += 9;
1089                         break;
1090                 default:
1091                         g_assert_not_reached ();
1092                 }
1093         }
1094 }
1095
1096 static void
1097 interp_save_debug_info (InterpMethod *rtm, MonoMethodHeader *header, TransformData *td, GArray *line_numbers)
1098 {
1099         MonoDebugMethodJitInfo *dinfo;
1100         int i;
1101
1102         if (!mono_debug_enabled ())
1103                 return;
1104
1105         /*
1106          * We save the debug info in the same way the JIT does it, treating the interpreter IR as the native code.
1107          */
1108
1109         dinfo = g_new0 (MonoDebugMethodJitInfo, 1);
1110         dinfo->num_params = rtm->param_count;
1111         dinfo->params = g_new0 (MonoDebugVarInfo, dinfo->num_params);
1112         dinfo->num_locals = header->num_locals;
1113         dinfo->locals = g_new0 (MonoDebugVarInfo, header->num_locals);
1114         dinfo->code_start = (guint8*)rtm->code;
1115         dinfo->code_size = td->new_ip - td->new_code;
1116         dinfo->epilogue_begin = 0;
1117         dinfo->has_var_info = TRUE;
1118         dinfo->num_line_numbers = line_numbers->len;
1119         dinfo->line_numbers = g_new0 (MonoDebugLineNumberEntry, dinfo->num_line_numbers);
1120
1121         for (i = 0; i < dinfo->num_params; i++) {
1122                 MonoDebugVarInfo *var = &dinfo->params [i];
1123                 var->type = rtm->param_types [i];
1124         }
1125         for (i = 0; i < dinfo->num_locals; i++) {
1126                 MonoDebugVarInfo *var = &dinfo->locals [i];
1127                 var->type = header->locals [i];
1128         }
1129
1130         for (i = 0; i < dinfo->num_line_numbers; i++)
1131                 dinfo->line_numbers [i] = g_array_index (line_numbers, MonoDebugLineNumberEntry, i);
1132         mono_debug_add_method (rtm->method, dinfo, mono_domain_get ());
1133
1134         mono_debug_free_method_jit_info (dinfo);
1135 }
1136
1137 /* Same as the code in seq-points.c */
1138 static void
1139 insert_pred_seq_point (SeqPoint *last_sp, SeqPoint *sp, GSList **next)
1140 {
1141         GSList *l;
1142         int src_index = last_sp->next_offset;
1143         int dst_index = sp->next_offset;
1144
1145         /* bb->in_bb might contain duplicates */
1146         for (l = next [src_index]; l; l = l->next)
1147                 if (GPOINTER_TO_UINT (l->data) == dst_index)
1148                         break;
1149         if (!l)
1150                 next [src_index] = g_slist_append (next [src_index], GUINT_TO_POINTER (dst_index));
1151 }
1152
1153 static void
1154 recursively_make_pred_seq_points (TransformData *td, InterpBasicBlock *bb)
1155 {
1156         const gpointer MONO_SEQ_SEEN_LOOP = GINT_TO_POINTER(-1);
1157         GSList *l;
1158
1159         GArray *predecessors = g_array_new (FALSE, TRUE, sizeof (gpointer));
1160         GHashTable *seen = g_hash_table_new_full (g_direct_hash, NULL, NULL, NULL);
1161
1162         // Insert/remove sentinel into the memoize table to detect loops containing bb
1163         bb->pred_seq_points = MONO_SEQ_SEEN_LOOP;
1164
1165         for (l = bb->preds; l; l = l->next) {
1166                 InterpBasicBlock *in_bb = l->data;
1167
1168                 // This bb has the last seq point, append it and continue
1169                 if (in_bb->last_seq_point != NULL) {
1170                         predecessors = g_array_append_val (predecessors, in_bb->last_seq_point);
1171                         continue;
1172                 }
1173
1174                 // We've looped or handled this before, exit early.
1175                 // No last sequence points to find.
1176                 if (in_bb->pred_seq_points == MONO_SEQ_SEEN_LOOP)
1177                         continue;
1178
1179                 // Take sequence points from incoming basic blocks
1180
1181                 if (in_bb == td->entry_bb)
1182                         continue;
1183
1184                 if (in_bb->pred_seq_points == NULL)
1185                         recursively_make_pred_seq_points (td, in_bb);
1186
1187                 // Union sequence points with incoming bb's
1188                 for (int i=0; i < in_bb->num_pred_seq_points; i++) {
1189                         if (!g_hash_table_lookup (seen, in_bb->pred_seq_points [i])) {
1190                                 g_array_append_val (predecessors, in_bb->pred_seq_points [i]);
1191                                 g_hash_table_insert (seen, in_bb->pred_seq_points [i], (gpointer)&MONO_SEQ_SEEN_LOOP);
1192                         }
1193                 }
1194                 // predecessors = g_array_append_vals (predecessors, in_bb->pred_seq_points, in_bb->num_pred_seq_points);
1195         }
1196
1197         g_hash_table_destroy (seen);
1198
1199         if (predecessors->len != 0) {
1200                 bb->pred_seq_points = mono_mempool_alloc0 (td->mempool, sizeof (SeqPoint *) * predecessors->len);
1201                 bb->num_pred_seq_points = predecessors->len;
1202
1203                 for (int newer = 0; newer < bb->num_pred_seq_points; newer++) {
1204                         bb->pred_seq_points [newer] = g_array_index (predecessors, gpointer, newer);
1205                 }
1206         }
1207
1208         g_array_free (predecessors, TRUE);
1209 }
1210
1211 static void
1212 collect_pred_seq_points (TransformData *td, InterpBasicBlock *bb, SeqPoint *seqp, GSList **next)
1213 {
1214         // Doesn't have a last sequence point, must find from incoming basic blocks
1215         if (bb->pred_seq_points == NULL && bb != td->entry_bb)
1216                 recursively_make_pred_seq_points (td, bb);
1217
1218         for (int i = 0; i < bb->num_pred_seq_points; i++)
1219                 insert_pred_seq_point (bb->pred_seq_points [i], seqp, next);
1220
1221         return;
1222 }
1223
1224 static void
1225 save_seq_points (TransformData *td)
1226 {
1227         InterpMethod *rtm = td->rtm;
1228         GByteArray *array;
1229         int i, seq_info_size;
1230         MonoSeqPointInfo *info;
1231         MonoDomain *domain = mono_domain_get ();
1232         GSList **next = NULL;
1233         GList *bblist;
1234
1235         if (!td->gen_sdb_seq_points)
1236                 return;
1237
1238         /*
1239          * For each sequence point, compute the list of sequence points immediately
1240          * following it, this is needed to implement 'step over' in the debugger agent.
1241          * Similar to the code in mono_save_seq_point_info ().
1242          */
1243         for (i = 0; i < td->seq_points->len; ++i) {
1244                 SeqPoint *sp = g_ptr_array_index (td->seq_points, i);
1245
1246                 /* Store the seq point index here temporarily */
1247                 sp->next_offset = i;
1248         }
1249         next = mono_mempool_alloc0 (td->mempool, sizeof (GList*) * td->seq_points->len);
1250         for (bblist = td->basic_blocks; bblist; bblist = bblist->next) {
1251                 InterpBasicBlock *bb = bblist->data;
1252
1253                 GSList *bb_seq_points = g_slist_reverse (bb->seq_points);
1254                 SeqPoint *last = NULL;
1255                 for (GSList *l = bb_seq_points; l; l = l->next) {
1256                         SeqPoint *sp = l->data;
1257
1258                         if (sp->il_offset == METHOD_ENTRY_IL_OFFSET || sp->il_offset == METHOD_EXIT_IL_OFFSET)
1259                                 /* Used to implement method entry/exit events */
1260                                 continue;
1261
1262                         if (last != NULL) {
1263                                 /* Link with the previous seq point in the same bb */
1264                                 next [last->next_offset] = g_slist_append_mempool (td->mempool, next [last->next_offset], GINT_TO_POINTER (sp->next_offset));
1265                         } else {
1266                                 /* Link with the last bb in the previous bblocks */
1267                                 collect_pred_seq_points (td, bb, sp, next);
1268                         }
1269                         last = sp;
1270                 }
1271         }
1272
1273         /* Serialize the seq points into a byte array */
1274         array = g_byte_array_new ();
1275         SeqPoint zero_seq_point = {0};
1276         SeqPoint* last_seq_point = &zero_seq_point;
1277         for (i = 0; i < td->seq_points->len; ++i) {
1278                 SeqPoint *sp = (SeqPoint*)g_ptr_array_index (td->seq_points, i);
1279
1280                 sp->next_offset = 0;
1281                 if (mono_seq_point_info_add_seq_point (array, sp, last_seq_point, next [i], TRUE))
1282                         last_seq_point = sp;
1283         }
1284
1285         if (td->verbose_level) {
1286                 g_print ("\nSEQ POINT MAP FOR %s: \n", td->method->name);
1287
1288                 for (i = 0; i < td->seq_points->len; ++i) {
1289                         SeqPoint *sp = (SeqPoint*)g_ptr_array_index (td->seq_points, i);
1290                         GSList *l;
1291
1292                         if (!next [i])
1293                                 continue;
1294
1295                         g_print ("\tIL0x%x[0x%0x] ->", sp->il_offset, sp->native_offset);
1296                         for (l = next [i]; l; l = l->next) {
1297                                 int next_index = GPOINTER_TO_UINT (l->data);
1298                                 g_print (" IL0x%x", ((SeqPoint*)g_ptr_array_index (td->seq_points, next_index))->il_offset);
1299                         }
1300                         g_print ("\n");
1301                 }
1302         }
1303
1304         info = mono_seq_point_info_new (array->len, TRUE, array->data, TRUE, &seq_info_size);
1305         mono_jit_stats.allocated_seq_points_size += seq_info_size;
1306
1307         g_byte_array_free (array, TRUE);
1308
1309         mono_domain_lock (domain);
1310         g_hash_table_insert (domain_jit_info (domain)->seq_points, rtm->method, info);
1311         mono_domain_unlock (domain);
1312 }
1313
1314 static void
1315 emit_seq_point (TransformData *td, int il_offset, InterpBasicBlock *cbb, gboolean nonempty_stack)
1316 {
1317         SeqPoint *seqp;
1318
1319         seqp = mono_mempool_alloc0 (td->mempool, sizeof (SeqPoint));
1320         seqp->il_offset = il_offset;
1321         seqp->native_offset = (guint8*)td->new_ip - (guint8*)td->new_code;
1322         if (nonempty_stack)
1323                 seqp->flags |= MONO_SEQ_POINT_FLAG_NONEMPTY_STACK;
1324
1325         ADD_CODE (td, MINT_SDB_SEQ_POINT);
1326         g_ptr_array_add (td->seq_points, seqp);
1327
1328         cbb->seq_points = g_slist_prepend_mempool (td->mempool, cbb->seq_points, seqp);
1329         cbb->last_seq_point = seqp;
1330 }
1331
1332 #define BARRIER_IF_VOLATILE(td) \
1333         do { \
1334                 if (volatile_) { \
1335                         ADD_CODE (td, MINT_MONO_MEMORY_BARRIER); \
1336                         volatile_ = FALSE; \
1337                 } \
1338         } while (0)
1339
1340 static void
1341 generate (MonoMethod *method, InterpMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
1342 {
1343         MonoMethodHeader *header = mono_method_get_header (method);
1344         MonoMethodSignature *signature = mono_method_signature (method);
1345         MonoImage *image = method->klass->image;
1346         MonoDomain *domain = rtm->domain;
1347         MonoClass *constrained_class = NULL;
1348         MonoError error;
1349         int offset, mt, i, i32;
1350         gboolean readonly = FALSE;
1351         gboolean volatile_ = FALSE;
1352         MonoClass *klass;
1353         MonoClassField *field;
1354         const unsigned char *end;
1355         int new_in_start_offset;
1356         int body_start_offset;
1357         int target;
1358         guint32 token;
1359         TransformData transform_data;
1360         TransformData *td;
1361         int generating_code = 1;
1362         GArray *line_numbers;
1363         MonoDebugMethodInfo *minfo;
1364         MonoBitSet *seq_point_locs = NULL;
1365         MonoBitSet *seq_point_set_locs = NULL;
1366         gboolean sym_seq_points = FALSE;
1367         InterpBasicBlock *bb_exit = NULL;
1368         static gboolean verbose_method_inited;
1369         static char* verbose_method_name;
1370
1371         if (!verbose_method_inited) {
1372                 verbose_method_name = getenv ("MONO_VERBOSE_METHOD");
1373                 verbose_method_inited = TRUE;
1374         }
1375
1376         memset (&transform_data, 0, sizeof(transform_data));
1377         td = &transform_data;
1378
1379         td->method = method;
1380         td->rtm = rtm;
1381         td->is_bb_start = is_bb_start;
1382         td->il_code = header->code;
1383         td->code_size = header->code_size;
1384         td->header = header;
1385         td->max_code_size = td->code_size;
1386         td->new_code = (unsigned short *)g_malloc(td->max_code_size * sizeof(gushort));
1387         td->new_code_end = td->new_code + td->max_code_size;
1388         td->mempool = mono_mempool_new ();
1389         td->in_offsets = g_malloc0(header->code_size * sizeof(int));
1390         td->stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
1391         td->stack_height = g_malloc(header->code_size * sizeof(int));
1392         td->vt_stack_size = g_malloc(header->code_size * sizeof(int));
1393         td->n_data_items = 0;
1394         td->max_data_items = 0;
1395         td->data_items = NULL;
1396         td->data_hash = g_hash_table_new (NULL, NULL);
1397         td->clause_indexes = g_malloc (header->code_size * sizeof (int));
1398         td->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
1399         td->seq_points = g_ptr_array_new ();
1400         td->relocs = g_ptr_array_new ();
1401         td->verbose_level = mono_interp_traceopt;
1402         rtm->data_items = td->data_items;
1403         for (i = 0; i < header->code_size; i++) {
1404                 td->stack_height [i] = -1;
1405                 td->clause_indexes [i] = -1;
1406         }
1407
1408         if (verbose_method_name) {
1409                 const char *name = verbose_method_name;
1410
1411                 if ((strchr (name, '.') > name) || strchr (name, ':')) {
1412                         MonoMethodDesc *desc;
1413
1414                         desc = mono_method_desc_new (name, TRUE);
1415                         if (mono_method_desc_full_match (desc, method)) {
1416                                 td->verbose_level = 4;
1417                         }
1418                         mono_method_desc_free (desc);
1419                 } else {
1420                         if (strcmp (method->name, name) == 0)
1421                                 td->verbose_level = 4;
1422                 }
1423         }
1424
1425         if (td->gen_sdb_seq_points) {
1426                 get_basic_blocks (td);
1427
1428                 minfo = mono_debug_lookup_method (method);
1429
1430                 if (minfo) {
1431                         MonoSymSeqPoint *sps;
1432                         int i, n_il_offsets;
1433
1434                         mono_debug_get_seq_points (minfo, NULL, NULL, NULL, &sps, &n_il_offsets);
1435                         // FIXME: Free
1436                         seq_point_locs = mono_bitset_mem_new (mono_mempool_alloc0 (td->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
1437                         seq_point_set_locs = mono_bitset_mem_new (mono_mempool_alloc0 (td->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
1438                         sym_seq_points = TRUE;
1439
1440                         for (i = 0; i < n_il_offsets; ++i) {
1441                                 if (sps [i].il_offset < header->code_size)
1442                                         mono_bitset_set_fast (seq_point_locs, sps [i].il_offset);
1443                         }
1444                         g_free (sps);
1445                 } else if (!method->wrapper_type && !method->dynamic && mono_debug_image_has_debug_info (method->klass->image)) {
1446                         /* Methods without line number info like auto-generated property accessors */
1447                         seq_point_locs = mono_bitset_new (header->code_size, 0);
1448                         seq_point_set_locs = mono_bitset_new (header->code_size, 0);
1449                         sym_seq_points = TRUE;
1450                 }
1451         }
1452
1453         td->new_ip = td->new_code;
1454         td->last_new_ip = NULL;
1455
1456         td->stack = g_malloc0 ((header->max_stack + 1) * sizeof (td->stack [0]));
1457         td->sp = td->stack;
1458         td->max_stack_height = 0;
1459
1460         line_numbers = g_array_new (FALSE, TRUE, sizeof (MonoDebugLineNumberEntry));
1461
1462         for (i = 0; i < header->num_clauses; i++) {
1463                 MonoExceptionClause *c = header->clauses + i;
1464                 td->stack_height [c->handler_offset] = 0;
1465                 td->vt_stack_size [c->handler_offset] = 0;
1466                 td->is_bb_start [c->handler_offset] = 1;
1467
1468                 td->stack_height [c->handler_offset] = 1;
1469                 td->stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
1470                 td->stack_state [c->handler_offset][0].type = STACK_TYPE_O;
1471                 td->stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
1472
1473                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
1474                         td->stack_height [c->data.filter_offset] = 0;
1475                         td->vt_stack_size [c->data.filter_offset] = 0;
1476                         td->is_bb_start [c->data.filter_offset] = 1;
1477
1478                         td->stack_height [c->data.filter_offset] = 1;
1479                         td->stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
1480                         td->stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
1481                         td->stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
1482                 }
1483
1484                 for (int j = c->handler_offset; j < c->handler_offset + c->handler_len; ++j) {
1485                         if (td->clause_indexes [j] == -1)
1486                                 td->clause_indexes [j] = i;
1487                 }
1488         }
1489
1490         td->ip = header->code;
1491         end = td->ip + header->code_size;
1492
1493         if (td->verbose_level) {
1494                 char *tmp = mono_disasm_code (NULL, method, td->ip, end);
1495                 char *name = mono_method_full_name (method, TRUE);
1496                 g_print ("Method %s, original code:\n", name);
1497                 g_print ("%s\n", tmp);
1498                 g_free (tmp);
1499                 g_free (name);
1500         }
1501
1502         if (signature->hasthis)
1503                 store_inarg (td, 0);
1504         for (i = 0; i < signature->param_count; i++)
1505                 store_inarg (td, i + !!signature->hasthis);
1506
1507         body_start_offset = td->new_ip - td->new_code;
1508
1509         for (i = 0; i < header->num_locals; i++) {
1510                 int mt = mint_type(header->locals [i]);
1511                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1512                         ADD_CODE(td, MINT_INITLOCALS);
1513                         break;
1514                 }
1515         }
1516
1517         if (rtm->prof_flags & MONO_PROFILER_CALL_INSTRUMENTATION_PROLOGUE)
1518                 ADD_CODE (td, MINT_PROF_ENTER);
1519
1520         if (sym_seq_points) {
1521                 InterpBasicBlock *cbb = td->offset_to_bb [0];
1522                 g_assert (cbb);
1523                 emit_seq_point (td, METHOD_ENTRY_IL_OFFSET, cbb, FALSE);
1524         }
1525
1526         while (td->ip < end) {
1527                 int in_offset;
1528
1529                 g_assert (td->sp >= td->stack);
1530                 g_assert (td->vt_sp < 0x10000000);
1531                 in_offset = td->ip - header->code;
1532                 td->in_offsets [in_offset] = td->new_ip - td->new_code;
1533                 new_in_start_offset = td->new_ip - td->new_code;
1534                 td->in_start = td->ip;
1535
1536                 MonoDebugLineNumberEntry lne;
1537                 lne.native_offset = (guint8*)td->new_ip - (guint8*)td->new_code;
1538                 lne.il_offset = in_offset;
1539                 g_array_append_val (line_numbers, lne);
1540
1541                 if (td->stack_height [in_offset] >= 0) {
1542                         g_assert (is_bb_start [in_offset]);
1543                         if (td->stack_height [in_offset] > 0)
1544                                 memcpy (td->stack, td->stack_state [in_offset], td->stack_height [in_offset] * sizeof(td->stack [0]));
1545                         td->sp = td->stack + td->stack_height [in_offset];
1546                         td->vt_sp = td->vt_stack_size [in_offset];
1547                 }
1548                 if (is_bb_start [in_offset]) {
1549                         generating_code = 1;
1550                 }
1551                 if (!generating_code) {
1552                         while (td->ip < end && !is_bb_start [td->ip - td->il_code])
1553                                 ++td->ip;
1554                         continue;
1555                 }
1556                 if (td->verbose_level > 1) {
1557                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1558                                 td->ip - td->il_code,
1559                                 td->is_bb_start [td->ip - td->il_code] == 3 ? "<>" :
1560                                 td->is_bb_start [td->ip - td->il_code] == 2 ? "< " :
1561                                 td->is_bb_start [td->ip - td->il_code] == 1 ? " >" : "  ",
1562                                 mono_opcode_name (*td->ip), td->new_ip - td->new_code, td->sp - td->stack,
1563                                 td->sp > td->stack ? stack_type_string [td->sp [-1].type] : "  ",
1564                                 (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) : "",
1565                                 td->vt_sp, td->max_vt_sp);
1566                 }
1567
1568                 if (sym_seq_points && mono_bitset_test_fast (seq_point_locs, td->ip - header->code)) {
1569                         InterpBasicBlock *cbb = td->offset_to_bb [td->ip - header->code];
1570                         g_assert (cbb);
1571
1572                         /*
1573                          * Make methods interruptable at the beginning, and at the targets of
1574                          * backward branches.
1575                          */
1576                         if (in_offset == 0 || g_slist_length (cbb->preds) > 1)
1577                                 ADD_CODE (td, MINT_SDB_INTR_LOC);
1578
1579                         emit_seq_point (td, in_offset, cbb, FALSE);
1580
1581                         mono_bitset_set_fast (seq_point_set_locs, td->ip - header->code);
1582                 }
1583
1584                 if (sym_seq_points)
1585                         bb_exit = td->offset_to_bb [td->ip - header->code];
1586
1587                 switch (*td->ip) {
1588                 case CEE_NOP:
1589                         /* lose it */
1590                         ++td->ip;
1591                         break;
1592                 case CEE_BREAK:
1593                         SIMPLE_OP(td, MINT_BREAK);
1594                         break;
1595                 case CEE_LDARG_0:
1596                 case CEE_LDARG_1:
1597                 case CEE_LDARG_2:
1598                 case CEE_LDARG_3:
1599                         load_arg (td, *td->ip - CEE_LDARG_0);
1600                         ++td->ip;
1601                         break;
1602                 case CEE_LDLOC_0:
1603                 case CEE_LDLOC_1:
1604                 case CEE_LDLOC_2:
1605                 case CEE_LDLOC_3:
1606                         load_local (td, *td->ip - CEE_LDLOC_0);
1607                         ++td->ip;
1608                         break;
1609                 case CEE_STLOC_0:
1610                 case CEE_STLOC_1:
1611                 case CEE_STLOC_2:
1612                 case CEE_STLOC_3:
1613                         store_local (td, *td->ip - CEE_STLOC_0);
1614                         ++td->ip;
1615                         break;
1616                 case CEE_LDARG_S:
1617                         load_arg (td, ((guint8 *)td->ip)[1]);
1618                         td->ip += 2;
1619                         break;
1620                 case CEE_LDARGA_S: {
1621                         /* NOTE: n includes this */
1622                         int n = ((guint8 *) td->ip) [1];
1623                         ADD_CODE (td, MINT_LDARGA);
1624                         ADD_CODE (td, td->rtm->arg_offsets [n]);
1625                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
1626                         td->ip += 2;
1627                         break;
1628                 }
1629                 case CEE_STARG_S:
1630                         store_arg (td, ((guint8 *)td->ip)[1]);
1631                         td->ip += 2;
1632                         break;
1633                 case CEE_LDLOC_S:
1634                         load_local (td, ((guint8 *)td->ip)[1]);
1635                         td->ip += 2;
1636                         break;
1637                 case CEE_LDLOCA_S:
1638                         ADD_CODE(td, MINT_LDLOCA_S);
1639                         ADD_CODE(td, td->rtm->local_offsets [((guint8 *)td->ip)[1]]);
1640                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
1641                         td->ip += 2;
1642                         break;
1643                 case CEE_STLOC_S:
1644                         store_local (td, ((guint8 *)td->ip)[1]);
1645                         td->ip += 2;
1646                         break;
1647                 case CEE_LDNULL:
1648                         SIMPLE_OP(td, MINT_LDNULL);
1649                         PUSH_TYPE(td, STACK_TYPE_O, NULL);
1650                         break;
1651                 case CEE_LDC_I4_M1:
1652                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1653                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1654                         break;
1655                 case CEE_LDC_I4_0:
1656                         if (!td->is_bb_start[td->ip + 1 - td->il_code] && td->ip [1] == 0xfe && td->ip [2] == CEE_CEQ &&
1657                                 td->sp > td->stack && td->sp [-1].type == STACK_TYPE_I4) {
1658                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1659                                 td->ip += 2;
1660                         } else {
1661                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1662                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1663                         }
1664                         break;
1665                 case CEE_LDC_I4_1:
1666                         if (!td->is_bb_start[td->ip + 1 - td->il_code] &&
1667                                 (td->ip [1] == CEE_ADD || td->ip [1] == CEE_SUB) && td->sp [-1].type == STACK_TYPE_I4) {
1668                                 ADD_CODE(td, td->ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1669                                 td->ip += 2;
1670                         } else {
1671                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1672                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1673                         }
1674                         break;
1675                 case CEE_LDC_I4_2:
1676                 case CEE_LDC_I4_3:
1677                 case CEE_LDC_I4_4:
1678                 case CEE_LDC_I4_5:
1679                 case CEE_LDC_I4_6:
1680                 case CEE_LDC_I4_7:
1681                 case CEE_LDC_I4_8:
1682                         SIMPLE_OP(td, (*td->ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1683                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1684                         break;
1685                 case CEE_LDC_I4_S:
1686                         ADD_CODE(td, MINT_LDC_I4_S);
1687                         ADD_CODE(td, ((gint8 *) td->ip) [1]);
1688                         td->ip += 2;
1689                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1690                         break;
1691                 case CEE_LDC_I4:
1692                         i32 = read32 (td->ip + 1);
1693                         ADD_CODE(td, MINT_LDC_I4);
1694                         WRITE32(td, &i32);
1695                         td->ip += 5;
1696                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
1697                         break;
1698                 case CEE_LDC_I8: {
1699                         gint64 val = read64 (td->ip + 1);
1700                         ADD_CODE(td, MINT_LDC_I8);
1701                         WRITE64(td, &val);
1702                         td->ip += 9;
1703                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_I8);
1704                         break;
1705                 }
1706                 case CEE_LDC_R4: {
1707                         float val;
1708                         readr4 (td->ip + 1, &val);
1709                         ADD_CODE(td, MINT_LDC_R4);
1710                         WRITE32(td, &val);
1711                         td->ip += 5;
1712                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_R8);
1713                         break;
1714                 }
1715                 case CEE_LDC_R8: {
1716                         double val;
1717                         readr8 (td->ip + 1, &val);
1718                         ADD_CODE(td, MINT_LDC_R8);
1719                         WRITE64(td, &val);
1720                         td->ip += 9;
1721                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_R8);
1722                         break;
1723                 }
1724                 case CEE_DUP: {
1725                         int type = td->sp [-1].type;
1726                         MonoClass *klass = td->sp [-1].klass;
1727                         if (td->sp [-1].type == STACK_TYPE_VT) {
1728                                 gint32 size = mono_class_value_size (klass, NULL);
1729                                 PUSH_VT(td, size);
1730                                 ADD_CODE(td, MINT_DUP_VT);
1731                                 WRITE32(td, &size);
1732                                 td->ip ++;
1733                         } else
1734                                 SIMPLE_OP(td, MINT_DUP);
1735                         PUSH_TYPE(td, type, klass);
1736                         break;
1737                 }
1738                 case CEE_POP:
1739                         CHECK_STACK(td, 1);
1740                         SIMPLE_OP(td, MINT_POP);
1741                         ADD_CODE (td, 0);
1742                         if (td->sp [-1].type == STACK_TYPE_VT) {
1743                                 int size = mono_class_value_size (td->sp [-1].klass, NULL);
1744                                 size = (size + 7) & ~7;
1745                                 ADD_CODE(td, MINT_VTRESULT);
1746                                 ADD_CODE(td, 0);
1747                                 WRITE32(td, &size);
1748                                 td->vt_sp -= size;
1749                         }
1750                         --td->sp;
1751                         break;
1752                 case CEE_JMP: {
1753                         MonoMethod *m;
1754                         if (td->sp > td->stack)
1755                                 g_warning ("CEE_JMP: stack must be empty");
1756                         token = read32 (td->ip + 1);
1757                         m = mono_get_method_full (image, token, NULL, generic_context);
1758                         ADD_CODE (td, MINT_JMP);
1759                         ADD_CODE (td, get_data_item_index (td, mono_interp_get_imethod (domain, m, &error)));
1760                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1761                         td->ip += 5;
1762                         break;
1763                 }
1764                 case CEE_CALLVIRT: /* Fall through */
1765                 case CEE_CALLI:    /* Fall through */
1766                 case CEE_CALL: {
1767                         gboolean need_seq_point = FALSE;
1768
1769                         if (sym_seq_points && !mono_bitset_test_fast (seq_point_locs, td->ip + 5 - header->code))
1770                                 need_seq_point = TRUE;
1771
1772                         interp_transform_call (td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1773
1774                         if (need_seq_point) {
1775                                 InterpBasicBlock *cbb = td->offset_to_bb [td->ip - header->code];
1776                                 g_assert (cbb);
1777
1778                                 emit_seq_point (td, td->ip - header->code, cbb, TRUE);
1779                         }
1780
1781                         constrained_class = NULL;
1782                         readonly = FALSE;
1783                         break;
1784                 }
1785                 case CEE_RET: {
1786                         int vt_size = 0;
1787                         if (signature->ret->type != MONO_TYPE_VOID) {
1788                                 --td->sp;
1789                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1790                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1791                                         vt_size = mono_class_value_size (klass, NULL);
1792                                         vt_size = (vt_size + 7) & ~7;
1793                                 }
1794                         }
1795                         if (td->sp > td->stack)
1796                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td->method->klass->name, td->method->name, td->sp - td->stack);
1797                         if (td->vt_sp != vt_size)
1798                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td->method->klass->name, td->method->name, td->vt_sp, vt_size);
1799
1800                         if (sym_seq_points) {
1801                                 InterpBasicBlock *cbb = td->offset_to_bb [td->ip - header->code];
1802                                 g_assert (cbb);
1803                                 emit_seq_point (td, METHOD_EXIT_IL_OFFSET, bb_exit, FALSE);
1804                         }
1805
1806                         if (vt_size == 0)
1807                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1808                         else {
1809                                 ADD_CODE(td, MINT_RET_VT);
1810                                 WRITE32(td, &vt_size);
1811                                 ++td->ip;
1812                         }
1813                         generating_code = 0;
1814                         break;
1815                 }
1816                 case CEE_BR:
1817                         handle_branch (td, MINT_BR_S, MINT_BR, 5 + read32 (td->ip + 1));
1818                         td->ip += 5;
1819                         generating_code = 0;
1820                         break;
1821                 case CEE_BR_S:
1822                         handle_branch (td, MINT_BR_S, MINT_BR, 2 + (gint8)td->ip [1]);
1823                         td->ip += 2;
1824                         generating_code = 0;
1825                         break;
1826                 case CEE_BRFALSE:
1827                         one_arg_branch (td, MINT_BRFALSE_I4, 5 + read32 (td->ip + 1));
1828                         td->ip += 5;
1829                         break;
1830                 case CEE_BRFALSE_S:
1831                         one_arg_branch (td, MINT_BRFALSE_I4, 2 + (gint8)td->ip [1]);
1832                         td->ip += 2;
1833                         break;
1834                 case CEE_BRTRUE:
1835                         one_arg_branch (td, MINT_BRTRUE_I4, 5 + read32 (td->ip + 1));
1836                         td->ip += 5;
1837                         break;
1838                 case CEE_BRTRUE_S:
1839                         one_arg_branch (td, MINT_BRTRUE_I4, 2 + (gint8)td->ip [1]);
1840                         td->ip += 2;
1841                         break;
1842                 case CEE_BEQ:
1843                         two_arg_branch (td, MINT_BEQ_I4, 5 + read32 (td->ip + 1));
1844                         td->ip += 5;
1845                         break;
1846                 case CEE_BEQ_S:
1847                         two_arg_branch (td, MINT_BEQ_I4, 2 + (gint8) td->ip [1]);
1848                         td->ip += 2;
1849                         break;
1850                 case CEE_BGE:
1851                         two_arg_branch (td, MINT_BGE_I4, 5 + read32 (td->ip + 1));
1852                         td->ip += 5;
1853                         break;
1854                 case CEE_BGE_S:
1855                         two_arg_branch (td, MINT_BGE_I4, 2 + (gint8) td->ip [1]);
1856                         td->ip += 2;
1857                         break;
1858                 case CEE_BGT:
1859                         two_arg_branch (td, MINT_BGT_I4, 5 + read32 (td->ip + 1));
1860                         td->ip += 5;
1861                         break;
1862                 case CEE_BGT_S:
1863                         two_arg_branch (td, MINT_BGT_I4, 2 + (gint8) td->ip [1]);
1864                         td->ip += 2;
1865                         break;
1866                 case CEE_BLT:
1867                         two_arg_branch (td, MINT_BLT_I4, 5 + read32 (td->ip + 1));
1868                         td->ip += 5;
1869                         break;
1870                 case CEE_BLT_S:
1871                         two_arg_branch (td, MINT_BLT_I4, 2 + (gint8) td->ip [1]);
1872                         td->ip += 2;
1873                         break;
1874                 case CEE_BLE:
1875                         two_arg_branch (td, MINT_BLE_I4, 5 + read32 (td->ip + 1));
1876                         td->ip += 5;
1877                         break;
1878                 case CEE_BLE_S:
1879                         two_arg_branch (td, MINT_BLE_I4, 2 + (gint8) td->ip [1]);
1880                         td->ip += 2;
1881                         break;
1882                 case CEE_BNE_UN:
1883                         two_arg_branch (td, MINT_BNE_UN_I4, 5 + read32 (td->ip + 1));
1884                         td->ip += 5;
1885                         break;
1886                 case CEE_BNE_UN_S:
1887                         two_arg_branch (td, MINT_BNE_UN_I4, 2 + (gint8) td->ip [1]);
1888                         td->ip += 2;
1889                         break;
1890                 case CEE_BGE_UN:
1891                         two_arg_branch (td, MINT_BGE_UN_I4, 5 + read32 (td->ip + 1));
1892                         td->ip += 5;
1893                         break;
1894                 case CEE_BGE_UN_S:
1895                         two_arg_branch (td, MINT_BGE_UN_I4, 2 + (gint8) td->ip [1]);
1896                         td->ip += 2;
1897                         break;
1898                 case CEE_BGT_UN:
1899                         two_arg_branch (td, MINT_BGT_UN_I4, 5 + read32 (td->ip + 1));
1900                         td->ip += 5;
1901                         break;
1902                 case CEE_BGT_UN_S:
1903                         two_arg_branch (td, MINT_BGT_UN_I4, 2 + (gint8) td->ip [1]);
1904                         td->ip += 2;
1905                         break;
1906                 case CEE_BLE_UN:
1907                         two_arg_branch (td, MINT_BLE_UN_I4, 5 + read32 (td->ip + 1));
1908                         td->ip += 5;
1909                         break;
1910                 case CEE_BLE_UN_S:
1911                         two_arg_branch (td, MINT_BLE_UN_I4, 2 + (gint8) td->ip [1]);
1912                         td->ip += 2;
1913                         break;
1914                 case CEE_BLT_UN:
1915                         two_arg_branch (td, MINT_BLT_UN_I4, 5 + read32 (td->ip + 1));
1916                         td->ip += 5;
1917                         break;
1918                 case CEE_BLT_UN_S:
1919                         two_arg_branch (td, MINT_BLT_UN_I4, 2 + (gint8) td->ip [1]);
1920                         td->ip += 2;
1921                         break;
1922                 case CEE_SWITCH: {
1923                         guint32 n;
1924                         const unsigned char *next_ip;
1925                         ++td->ip;
1926                         n = read32 (td->ip);
1927                         ADD_CODE (td, MINT_SWITCH);
1928                         WRITE32 (td, &n);
1929                         td->ip += 4;
1930                         next_ip = td->ip + n * 4;
1931                         --td->sp;
1932                         int stack_height = td->sp - td->stack;
1933                         for (i = 0; i < n; i++) {
1934                                 offset = read32 (td->ip);
1935                                 target = next_ip - td->il_code + offset;
1936                                 if (offset < 0) {
1937 #if DEBUG_INTERP
1938                                         if (stack_height > 0 && stack_height != td->stack_height [target])
1939                                                 g_warning ("SWITCH with back branch and non-empty stack");
1940 #endif
1941                                         target = td->in_offsets [target] - (td->new_ip - td->new_code);
1942                                 } else {
1943                                         td->stack_height [target] = stack_height;
1944                                         td->vt_stack_size [target] = td->vt_sp;
1945                                         if (stack_height > 0)
1946                                                 td->stack_state [target] = g_memdup (td->stack, stack_height * sizeof (td->stack [0]));
1947
1948                                         Reloc *reloc = mono_mempool_alloc0 (td->mempool, sizeof (Reloc));
1949                                         reloc->type = RELOC_SWITCH;
1950                                         reloc->offset = td->new_ip - td->new_code;
1951                                         reloc->target = target;
1952                                         g_ptr_array_add (td->relocs, reloc);
1953                                         target = 0xffff;
1954                                 }
1955                                 WRITE32 (td, &target);
1956                                 td->ip += 4;
1957                         }
1958                         break;
1959                 }
1960                 case CEE_LDIND_I1:
1961                         CHECK_STACK (td, 1);
1962                         SIMPLE_OP (td, MINT_LDIND_I1);
1963                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1964                         BARRIER_IF_VOLATILE (td);
1965                         break;
1966                 case CEE_LDIND_U1:
1967                         CHECK_STACK (td, 1);
1968                         SIMPLE_OP (td, MINT_LDIND_U1);
1969                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1970                         BARRIER_IF_VOLATILE (td);
1971                         break;
1972                 case CEE_LDIND_I2:
1973                         CHECK_STACK (td, 1);
1974                         SIMPLE_OP (td, MINT_LDIND_I2);
1975                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1976                         BARRIER_IF_VOLATILE (td);
1977                         break;
1978                 case CEE_LDIND_U2:
1979                         CHECK_STACK (td, 1);
1980                         SIMPLE_OP (td, MINT_LDIND_U2);
1981                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1982                         BARRIER_IF_VOLATILE (td);
1983                         break;
1984                 case CEE_LDIND_I4:
1985                         CHECK_STACK (td, 1);
1986                         SIMPLE_OP (td, MINT_LDIND_I4);
1987                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1988                         BARRIER_IF_VOLATILE (td);
1989                         break;
1990                 case CEE_LDIND_U4:
1991                         CHECK_STACK (td, 1);
1992                         SIMPLE_OP (td, MINT_LDIND_U4);
1993                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
1994                         BARRIER_IF_VOLATILE (td);
1995                         break;
1996                 case CEE_LDIND_I8:
1997                         CHECK_STACK (td, 1);
1998                         SIMPLE_OP (td, MINT_LDIND_I8);
1999                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2000                         BARRIER_IF_VOLATILE (td);
2001                         break;
2002                 case CEE_LDIND_I:
2003                         CHECK_STACK (td, 1);
2004                         SIMPLE_OP (td, MINT_LDIND_I);
2005                         ADD_CODE (td, 0);
2006                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2007                         BARRIER_IF_VOLATILE (td);
2008                         break;
2009                 case CEE_LDIND_R4:
2010                         CHECK_STACK (td, 1);
2011                         SIMPLE_OP (td, MINT_LDIND_R4);
2012                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2013                         BARRIER_IF_VOLATILE (td);
2014                         break;
2015                 case CEE_LDIND_R8:
2016                         CHECK_STACK (td, 1);
2017                         SIMPLE_OP (td, MINT_LDIND_R8);
2018                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2019                         BARRIER_IF_VOLATILE (td);
2020                         break;
2021                 case CEE_LDIND_REF:
2022                         CHECK_STACK (td, 1);
2023                         SIMPLE_OP (td, MINT_LDIND_REF);
2024                         BARRIER_IF_VOLATILE (td);
2025                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_O);
2026                         break;
2027                 case CEE_STIND_REF:
2028                         CHECK_STACK (td, 2);
2029                         BARRIER_IF_VOLATILE (td);
2030                         SIMPLE_OP (td, MINT_STIND_REF);
2031                         td->sp -= 2;
2032                         break;
2033                 case CEE_STIND_I1:
2034                         CHECK_STACK (td, 2);
2035                         BARRIER_IF_VOLATILE (td);
2036                         SIMPLE_OP (td, MINT_STIND_I1);
2037                         td->sp -= 2;
2038                         break;
2039                 case CEE_STIND_I2:
2040                         CHECK_STACK (td, 2);
2041                         BARRIER_IF_VOLATILE (td);
2042                         SIMPLE_OP (td, MINT_STIND_I2);
2043                         td->sp -= 2;
2044                         break;
2045                 case CEE_STIND_I4:
2046                         CHECK_STACK (td, 2);
2047                         BARRIER_IF_VOLATILE (td);
2048                         SIMPLE_OP (td, MINT_STIND_I4);
2049                         td->sp -= 2;
2050                         break;
2051                 case CEE_STIND_I:
2052                         CHECK_STACK (td, 2);
2053                         BARRIER_IF_VOLATILE (td);
2054                         SIMPLE_OP (td, MINT_STIND_I);
2055                         td->sp -= 2;
2056                         break;
2057                 case CEE_STIND_I8:
2058                         CHECK_STACK (td, 2);
2059                         BARRIER_IF_VOLATILE (td);
2060                         SIMPLE_OP (td, MINT_STIND_I8);
2061                         td->sp -= 2;
2062                         break;
2063                 case CEE_STIND_R4:
2064                         CHECK_STACK (td, 2);
2065                         BARRIER_IF_VOLATILE (td);
2066                         SIMPLE_OP (td, MINT_STIND_R4);
2067                         td->sp -= 2;
2068                         break;
2069                 case CEE_STIND_R8:
2070                         CHECK_STACK (td, 2);
2071                         BARRIER_IF_VOLATILE (td);
2072                         SIMPLE_OP (td, MINT_STIND_R8);
2073                         td->sp -= 2;
2074                         break;
2075                 case CEE_ADD:
2076                         binary_arith_op(td, MINT_ADD_I4);
2077                         ++td->ip;
2078                         break;
2079                 case CEE_SUB:
2080                         binary_arith_op(td, MINT_SUB_I4);
2081                         ++td->ip;
2082                         break;
2083                 case CEE_MUL:
2084                         binary_arith_op(td, MINT_MUL_I4);
2085                         ++td->ip;
2086                         break;
2087                 case CEE_DIV:
2088                         binary_arith_op(td, MINT_DIV_I4);
2089                         ++td->ip;
2090                         break;
2091                 case CEE_DIV_UN:
2092                         binary_arith_op(td, MINT_DIV_UN_I4);
2093                         ++td->ip;
2094                         break;
2095                 case CEE_REM:
2096                         binary_arith_op (td, MINT_REM_I4);
2097                         ++td->ip;
2098                         break;
2099                 case CEE_REM_UN:
2100                         binary_arith_op (td, MINT_REM_UN_I4);
2101                         ++td->ip;
2102                         break;
2103                 case CEE_AND:
2104                         binary_arith_op (td, MINT_AND_I4);
2105                         ++td->ip;
2106                         break;
2107                 case CEE_OR:
2108                         binary_arith_op (td, MINT_OR_I4);
2109                         ++td->ip;
2110                         break;
2111                 case CEE_XOR:
2112                         binary_arith_op (td, MINT_XOR_I4);
2113                         ++td->ip;
2114                         break;
2115                 case CEE_SHL:
2116                         shift_op (td, MINT_SHL_I4);
2117                         ++td->ip;
2118                         break;
2119                 case CEE_SHR:
2120                         shift_op (td, MINT_SHR_I4);
2121                         ++td->ip;
2122                         break;
2123                 case CEE_SHR_UN:
2124                         shift_op (td, MINT_SHR_UN_I4);
2125                         ++td->ip;
2126                         break;
2127                 case CEE_NEG:
2128                         unary_arith_op (td, MINT_NEG_I4);
2129                         ++td->ip;
2130                         break;
2131                 case CEE_NOT:
2132                         unary_arith_op (td, MINT_NOT_I4);
2133                         ++td->ip;
2134                         break;
2135                 case CEE_CONV_U1:
2136                         CHECK_STACK (td, 1);
2137                         switch (td->sp [-1].type) {
2138                         case STACK_TYPE_R8:
2139                                 ADD_CODE(td, MINT_CONV_U1_R8);
2140                                 break;
2141                         case STACK_TYPE_I4:
2142                                 ADD_CODE(td, MINT_CONV_U1_I4);
2143                                 break;
2144                         case STACK_TYPE_I8:
2145                                 ADD_CODE(td, MINT_CONV_U1_I8);
2146                                 break;
2147                         default:
2148                                 g_assert_not_reached ();
2149                         }
2150                         ++td->ip;
2151                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2152                         break;
2153                 case CEE_CONV_I1:
2154                         CHECK_STACK (td, 1);
2155                         switch (td->sp [-1].type) {
2156                         case STACK_TYPE_R8:
2157                                 ADD_CODE(td, MINT_CONV_I1_R8);
2158                                 break;
2159                         case STACK_TYPE_I4:
2160                                 ADD_CODE(td, MINT_CONV_I1_I4);
2161                                 break;
2162                         case STACK_TYPE_I8:
2163                                 ADD_CODE(td, MINT_CONV_I1_I8);
2164                                 break;
2165                         default:
2166                                 g_assert_not_reached ();
2167                         }
2168                         ++td->ip;
2169                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2170                         break;
2171                 case CEE_CONV_U2:
2172                         CHECK_STACK (td, 1);
2173                         switch (td->sp [-1].type) {
2174                         case STACK_TYPE_R8:
2175                                 ADD_CODE(td, MINT_CONV_U2_R8);
2176                                 break;
2177                         case STACK_TYPE_I4:
2178                                 ADD_CODE(td, MINT_CONV_U2_I4);
2179                                 break;
2180                         case STACK_TYPE_I8:
2181                                 ADD_CODE(td, MINT_CONV_U2_I8);
2182                                 break;
2183                         default:
2184                                 g_assert_not_reached ();
2185                         }
2186                         ++td->ip;
2187                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2188                         break;
2189                 case CEE_CONV_I2:
2190                         CHECK_STACK (td, 1);
2191                         switch (td->sp [-1].type) {
2192                         case STACK_TYPE_R8:
2193                                 ADD_CODE(td, MINT_CONV_I2_R8);
2194                                 break;
2195                         case STACK_TYPE_I4:
2196                                 ADD_CODE(td, MINT_CONV_I2_I4);
2197                                 break;
2198                         case STACK_TYPE_I8:
2199                                 ADD_CODE(td, MINT_CONV_I2_I8);
2200                                 break;
2201                         default:
2202                                 g_assert_not_reached ();
2203                         }
2204                         ++td->ip;
2205                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2206                         break;
2207                 case CEE_CONV_U:
2208                         CHECK_STACK (td, 1);
2209                         switch (td->sp [-1].type) {
2210                         case STACK_TYPE_R8:
2211 #if SIZEOF_VOID_P == 4
2212                                 ADD_CODE(td, MINT_CONV_U4_R8);
2213 #else
2214                                 ADD_CODE(td, MINT_CONV_U8_R8);
2215 #endif
2216                                 break;
2217                         case STACK_TYPE_I4:
2218 #if SIZEOF_VOID_P == 8
2219                                 ADD_CODE(td, MINT_CONV_U8_I4);
2220 #endif
2221                                 break;
2222                         case STACK_TYPE_I8:
2223 #if SIZEOF_VOID_P == 4
2224                                 ADD_CODE(td, MINT_CONV_U4_I8);
2225 #endif
2226                                 break;
2227                         case STACK_TYPE_MP:
2228                                 break;
2229                         default:
2230                                 g_assert_not_reached ();
2231                         }
2232                         ++td->ip;
2233                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2234                         break;
2235                 case CEE_CONV_I:
2236                         CHECK_STACK (td, 1);
2237                         switch (td->sp [-1].type) {
2238                         case STACK_TYPE_R8:
2239 #if SIZEOF_VOID_P == 8
2240                                 ADD_CODE(td, MINT_CONV_I8_R8);
2241 #else
2242                                 ADD_CODE(td, MINT_CONV_I4_R8);
2243 #endif
2244                                 break;
2245                         case STACK_TYPE_I4:
2246 #if SIZEOF_VOID_P == 8
2247                                 ADD_CODE(td, MINT_CONV_I8_I4);
2248 #endif
2249                                 break;
2250                         case STACK_TYPE_O:
2251                                 break;
2252                         case STACK_TYPE_MP:
2253                                 break;
2254                         case STACK_TYPE_I8:
2255 #if SIZEOF_VOID_P == 4
2256                                 ADD_CODE(td, MINT_CONV_I4_I8);
2257 #endif
2258                                 break;
2259                         default:
2260                                 g_assert_not_reached ();
2261                         }
2262                         ++td->ip;
2263                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2264                         break;
2265                 case CEE_CONV_U4:
2266                         CHECK_STACK (td, 1);
2267                         switch (td->sp [-1].type) {
2268                         case STACK_TYPE_R8:
2269                                 ADD_CODE(td, MINT_CONV_U4_R8);
2270                                 break;
2271                         case STACK_TYPE_I4:
2272                                 break;
2273                         case STACK_TYPE_I8:
2274                                 ADD_CODE(td, MINT_CONV_U4_I8);
2275                                 break;
2276                         case STACK_TYPE_MP:
2277 #if SIZEOF_VOID_P == 8
2278                                 ADD_CODE(td, MINT_CONV_U4_I8);
2279 #endif
2280                                 break;
2281                         default:
2282                                 g_assert_not_reached ();
2283                         }
2284                         ++td->ip;
2285                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2286                         break;
2287                 case CEE_CONV_I4:
2288                         CHECK_STACK (td, 1);
2289                         switch (td->sp [-1].type) {
2290                         case STACK_TYPE_R8:
2291                                 ADD_CODE(td, MINT_CONV_I4_R8);
2292                                 break;
2293                         case STACK_TYPE_I4:
2294                                 break;
2295                         case STACK_TYPE_I8:
2296                                 ADD_CODE(td, MINT_CONV_I4_I8);
2297                                 break;
2298                         case STACK_TYPE_MP:
2299 #if SIZEOF_VOID_P == 8
2300                                 ADD_CODE(td, MINT_CONV_I4_I8);
2301 #endif
2302                                 break;
2303                         default:
2304                                 g_assert_not_reached ();
2305                         }
2306                         ++td->ip;
2307                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2308                         break;
2309                 case CEE_CONV_I8:
2310                         CHECK_STACK (td, 1);
2311                         switch (td->sp [-1].type) {
2312                         case STACK_TYPE_R8:
2313                                 ADD_CODE(td, MINT_CONV_I8_R8);
2314                                 break;
2315                         case STACK_TYPE_I4:
2316                                 ADD_CODE(td, MINT_CONV_I8_I4);
2317                                 break;
2318                         case STACK_TYPE_I8:
2319                                 break;
2320                         case STACK_TYPE_MP:
2321 #if SIZEOF_VOID_P == 4
2322                                 ADD_CODE(td, MINT_CONV_I8_I4);
2323 #endif
2324                                 break;
2325                         default:
2326                                 g_assert_not_reached ();
2327                         }
2328                         ++td->ip;
2329                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2330                         break;
2331                 case CEE_CONV_R4:
2332                         CHECK_STACK (td, 1);
2333                         switch (td->sp [-1].type) {
2334                         case STACK_TYPE_R8:
2335                                 ADD_CODE(td, MINT_CONV_R4_R8);
2336                                 break;
2337                         case STACK_TYPE_I8:
2338                                 ADD_CODE(td, MINT_CONV_R4_I8);
2339                                 break;
2340                         case STACK_TYPE_I4:
2341                                 ADD_CODE(td, MINT_CONV_R4_I4);
2342                                 break;
2343                         default:
2344                                 g_assert_not_reached ();
2345                         }
2346                         ++td->ip;
2347                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2348                         break;
2349                 case CEE_CONV_R8:
2350                         CHECK_STACK (td, 1);
2351                         switch (td->sp [-1].type) {
2352                         case STACK_TYPE_I4:
2353                                 ADD_CODE(td, MINT_CONV_R8_I4);
2354                                 break;
2355                         case STACK_TYPE_I8:
2356                                 ADD_CODE(td, MINT_CONV_R8_I8);
2357                                 break;
2358                         case STACK_TYPE_R8:
2359                                 break;
2360                         default:
2361                                 g_assert_not_reached ();
2362                         }
2363                         ++td->ip;
2364                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2365                         break;
2366                 case CEE_CONV_U8:
2367                         CHECK_STACK (td, 1);
2368                         switch (td->sp [-1].type) {
2369                         case STACK_TYPE_I4:
2370                                 ADD_CODE(td, MINT_CONV_U8_I4);
2371                                 break;
2372                         case STACK_TYPE_I8:
2373                                 break;
2374                         case STACK_TYPE_R8:
2375                                 ADD_CODE(td, MINT_CONV_U8_R8);
2376                                 break;
2377                         case STACK_TYPE_MP:
2378 #if SIZEOF_VOID_P == 4
2379                                 ADD_CODE(td, MINT_CONV_U8_I4);
2380 #endif
2381                                 break;
2382                         default:
2383                                 g_assert_not_reached ();
2384                         }
2385                         ++td->ip;
2386                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2387                         break;
2388                 case CEE_CPOBJ: {
2389                         CHECK_STACK (td, 2);
2390
2391                         token = read32 (td->ip + 1);
2392                         klass = mono_class_get_full (image, token, generic_context);
2393
2394                         if (klass->valuetype) {
2395                                 ADD_CODE (td, MINT_CPOBJ);
2396                                 ADD_CODE (td, get_data_item_index(td, klass));
2397                         } else {
2398                                 ADD_CODE (td, MINT_LDIND_REF);
2399                                 ADD_CODE (td, MINT_STIND_REF);
2400                         }
2401                         td->ip += 5;
2402                         td->sp -= 2;
2403                         break;
2404                 }
2405                 case CEE_LDOBJ: {
2406                         int size;
2407                         CHECK_STACK (td, 1);
2408
2409                         token = read32 (td->ip + 1);
2410
2411                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2412                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2413                         else
2414                                 klass = mono_class_get_full (image, token, generic_context);
2415
2416                         ADD_CODE(td, MINT_LDOBJ);
2417                         ADD_CODE(td, get_data_item_index(td, klass));
2418                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2419                                 size = mono_class_value_size (klass, NULL);
2420                                 PUSH_VT(td, size);
2421                         }
2422                         td->ip += 5;
2423                         SET_TYPE(td->sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
2424                         BARRIER_IF_VOLATILE (td);
2425                         break;
2426                 }
2427                 case CEE_LDSTR: {
2428                         MonoString *s;
2429                         token = mono_metadata_token_index (read32 (td->ip + 1));
2430                         td->ip += 5;
2431                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
2432                                 s = mono_method_get_wrapper_data (method, token);
2433                         } else if (method->wrapper_type != MONO_WRAPPER_NONE) {
2434                                 s = mono_string_new_wrapper (mono_method_get_wrapper_data (method, token));
2435                         } else {
2436                                 s = mono_ldstr (domain, image, token);
2437                         }
2438                         ADD_CODE(td, MINT_LDSTR);
2439                         ADD_CODE(td, get_data_item_index (td, s));
2440                         PUSH_TYPE(td, STACK_TYPE_O, mono_defaults.string_class);
2441                         break;
2442                 }
2443                 case CEE_NEWOBJ: {
2444                         MonoMethod *m;
2445                         MonoMethodSignature *csignature;
2446                         guint32 vt_stack_used = 0;
2447                         guint32 vt_res_size = 0;
2448
2449                         td->ip++;
2450                         token = read32 (td->ip);
2451                         td->ip += 4;
2452
2453                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2454                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
2455                         else
2456                                 m = mono_get_method_full (image, token, NULL, generic_context);
2457
2458                         csignature = mono_method_signature (m);
2459                         klass = m->klass;
2460                         td->sp -= csignature->param_count;
2461                         ADD_CODE(td, MINT_NEWOBJ);
2462                         ADD_CODE(td, get_data_item_index (td, mono_interp_get_imethod (domain, m, &error)));
2463                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2464
2465                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2466                                 vt_res_size = mono_class_value_size (klass, NULL);
2467                                 PUSH_VT (td, vt_res_size);
2468                         }
2469                         for (i = 0; i < csignature->param_count; ++i) {
2470                                 int mt = mint_type(csignature->params [i]);
2471                                 if (mt == MINT_TYPE_VT) {
2472                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
2473                                         gint32 size = mono_class_value_size (k, NULL);
2474                                         size = (size + 7) & ~7;
2475                                         vt_stack_used += size;
2476                                 }
2477                         }
2478                         if (vt_stack_used != 0 || vt_res_size != 0) {
2479                                 ADD_CODE(td, MINT_VTRESULT);
2480                                 ADD_CODE(td, vt_res_size);
2481                                 WRITE32(td, &vt_stack_used);
2482                                 td->vt_sp -= vt_stack_used;
2483                         }
2484                         PUSH_TYPE (td, stack_type [mint_type (&klass->byval_arg)], klass);
2485                         break;
2486                 }
2487                 case CEE_CASTCLASS:
2488                         CHECK_STACK (td, 1);
2489                         token = read32 (td->ip + 1);
2490                         klass = mini_get_class (method, token, generic_context);
2491                         ADD_CODE(td, MINT_CASTCLASS);
2492                         ADD_CODE(td, get_data_item_index (td, klass));
2493                         td->sp [-1].klass = klass;
2494                         td->ip += 5;
2495                         break;
2496                 case CEE_ISINST:
2497                         CHECK_STACK (td, 1);
2498                         token = read32 (td->ip + 1);
2499                         klass = mini_get_class (method, token, generic_context);
2500                         ADD_CODE(td, MINT_ISINST);
2501                         ADD_CODE(td, get_data_item_index (td, klass));
2502                         td->ip += 5;
2503                         break;
2504                 case CEE_CONV_R_UN:
2505                         switch (td->sp [-1].type) {
2506                         case STACK_TYPE_R8:
2507                                 break;
2508                         case STACK_TYPE_I8:
2509                                 ADD_CODE(td, MINT_CONV_R_UN_I8);
2510                                 break;
2511                         case STACK_TYPE_I4:
2512                                 ADD_CODE(td, MINT_CONV_R_UN_I4);
2513                                 break;
2514                         default:
2515                                 g_assert_not_reached ();
2516                         }
2517                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2518                         ++td->ip;
2519                         break;
2520                 case CEE_UNBOX:
2521                         CHECK_STACK (td, 1);
2522                         token = read32 (td->ip + 1);
2523
2524                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2525                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2526                         else
2527                                 klass = mono_class_get_full (image, token, generic_context);
2528
2529                         if (mono_class_is_nullable (klass)) {
2530                                 g_error ("cee_unbox: implement Nullable");
2531                         }
2532
2533                         ADD_CODE(td, MINT_UNBOX);
2534                         ADD_CODE(td, get_data_item_index (td, klass));
2535                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
2536                         td->ip += 5;
2537                         break;
2538                 case CEE_UNBOX_ANY:
2539                         CHECK_STACK (td, 1);
2540                         token = read32 (td->ip + 1);
2541
2542                         klass = mini_get_class (method, token, generic_context);
2543
2544                         if (mini_type_is_reference (&klass->byval_arg)) {
2545                                 int mt = mint_type (&klass->byval_arg);
2546                                 ADD_CODE (td, MINT_CASTCLASS);
2547                                 ADD_CODE (td, get_data_item_index (td, klass));
2548                                 SET_TYPE (td->sp - 1, stack_type [mt], klass);
2549                                 td->ip += 5;
2550                         } else if (mono_class_is_nullable (klass)) {
2551                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2552                                 /* td->ip is incremented by interp_transform_call */
2553                                 interp_transform_call (td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2554                         } else {
2555                                 int mt = mint_type (&klass->byval_arg);
2556                                 ADD_CODE (td, MINT_UNBOX);
2557                                 ADD_CODE (td, get_data_item_index (td, klass));
2558
2559                                 ADD_CODE (td, MINT_LDOBJ);
2560                                 ADD_CODE (td, get_data_item_index(td, klass));
2561                                 SET_TYPE (td->sp - 1, stack_type [mt], klass);
2562
2563                                 if (mt == MINT_TYPE_VT) {
2564                                         int size = mono_class_value_size (klass, NULL);
2565                                         PUSH_VT (td, size);
2566                                 }
2567                                 td->ip += 5;
2568                         }
2569
2570                         break;
2571                 case CEE_THROW:
2572                         CHECK_STACK (td, 1);
2573                         SIMPLE_OP (td, MINT_THROW);
2574                         --td->sp;
2575                         generating_code = 0;
2576                         break;
2577                 case CEE_LDFLDA:
2578                         CHECK_STACK (td, 1);
2579                         token = read32 (td->ip + 1);
2580                         field = interp_field_from_token (method, token, &klass, generic_context);
2581                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2582                         mono_class_init (klass);
2583                         if (is_static) {
2584                                 ADD_CODE (td, MINT_POP);
2585                                 ADD_CODE (td, 0);
2586                                 ADD_CODE (td, MINT_LDSFLDA);
2587                                 ADD_CODE (td, get_data_item_index (td, field));
2588                         } else {
2589                                 if ((td->sp - 1)->type == STACK_TYPE_O) {
2590                                         ADD_CODE (td, MINT_LDFLDA);
2591                                 } else {
2592                                         g_assert ((td->sp -1)->type == STACK_TYPE_MP);
2593                                         ADD_CODE (td, MINT_LDFLDA_UNSAFE);
2594                                 }
2595                                 ADD_CODE (td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2596                         }
2597                         td->ip += 5;
2598                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
2599                         break;
2600                 case CEE_LDFLD: {
2601                         CHECK_STACK (td, 1);
2602                         token = read32 (td->ip + 1);
2603                         field = interp_field_from_token (method, token, &klass, generic_context);
2604                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2605                         mono_class_init (klass);
2606
2607                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2608                         mt = mint_type (&field_klass->byval_arg);
2609 #ifndef DISABLE_REMOTING
2610                         if (klass->marshalbyref) {
2611                                 g_assert (!is_static);
2612                                 ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2613                                 ADD_CODE(td, get_data_item_index (td, field));
2614                         } else
2615 #endif
2616                         {
2617                                 if (is_static) {
2618                                         ADD_CODE (td, MINT_POP);
2619                                         ADD_CODE (td, 0);
2620                                         ADD_CODE (td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2621                                         ADD_CODE (td, get_data_item_index (td, field));
2622                                 } else {
2623                                         ADD_CODE (td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2624                                         ADD_CODE (td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2625                                 }
2626                         }
2627                         if (mt == MINT_TYPE_VT) {
2628                                 int size = mono_class_value_size (field_klass, NULL);
2629                                 PUSH_VT(td, size);
2630                                 WRITE32(td, &size);
2631                         }
2632                         if (td->sp [-1].type == STACK_TYPE_VT) {
2633                                 int size = mono_class_value_size (klass, NULL);
2634                                 size = (size + 7) & ~7;
2635                                 td->vt_sp -= size;
2636                                 ADD_CODE (td, MINT_VTRESULT);
2637                                 ADD_CODE (td, 0);
2638                                 WRITE32 (td, &size);
2639                         }
2640                         td->ip += 5;
2641                         SET_TYPE(td->sp - 1, stack_type [mt], field_klass);
2642                         BARRIER_IF_VOLATILE (td);
2643                         break;
2644                 }
2645                 case CEE_STFLD: {
2646                         CHECK_STACK (td, 2);
2647                         token = read32 (td->ip + 1);
2648                         field = interp_field_from_token (method, token, &klass, generic_context);
2649                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2650                         mono_class_init (klass);
2651                         mt = mint_type(field->type);
2652
2653                         BARRIER_IF_VOLATILE (td);
2654
2655 #ifndef DISABLE_REMOTING
2656                         if (klass->marshalbyref) {
2657                                 g_assert (!is_static);
2658                                 ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2659                                 ADD_CODE(td, get_data_item_index (td, field));
2660                         } else
2661 #endif
2662                         {
2663                                 if (is_static) {
2664                                         ADD_CODE (td, MINT_POP);
2665                                         ADD_CODE (td, 1);
2666                                         ADD_CODE (td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2667                                         ADD_CODE (td, get_data_item_index (td, field));
2668                                 } else {
2669                                         ADD_CODE (td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2670                                         ADD_CODE (td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2671                                 }
2672                         }
2673                         if (mt == MINT_TYPE_VT) {
2674                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2675                                 int size = mono_class_value_size (klass, NULL);
2676                                 POP_VT(td, size);
2677                                 WRITE32(td, &size);
2678                         }
2679                         td->ip += 5;
2680                         td->sp -= 2;
2681                         break;
2682                 }
2683                 case CEE_LDSFLDA:
2684                         token = read32 (td->ip + 1);
2685                         field = interp_field_from_token (method, token, &klass, generic_context);
2686                         ADD_CODE(td, MINT_LDSFLDA);
2687                         ADD_CODE(td, get_data_item_index (td, field));
2688                         td->ip += 5;
2689                         PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
2690                         break;
2691                 case CEE_LDSFLD:
2692                         token = read32 (td->ip + 1);
2693                         field = interp_field_from_token (method, token, &klass, generic_context);
2694                         mt = mint_type(field->type);
2695                         ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2696                         ADD_CODE(td, get_data_item_index (td, field));
2697                         klass = NULL;
2698                         if (mt == MINT_TYPE_VT) {
2699                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2700                                 int size = mono_class_value_size (klass, NULL);
2701                                 PUSH_VT(td, size);
2702                                 WRITE32(td, &size);
2703                                 klass = field->type->data.klass;
2704                         } else {
2705                                 if (mt == MINT_TYPE_O)
2706                                         klass = mono_class_from_mono_type (field->type);
2707                         }
2708                         td->ip += 5;
2709                         PUSH_TYPE(td, stack_type [mt], klass);
2710                         break;
2711                 case CEE_STSFLD:
2712                         CHECK_STACK (td, 1);
2713                         token = read32 (td->ip + 1);
2714                         field = interp_field_from_token (method, token, &klass, generic_context);
2715                         mt = mint_type(field->type);
2716                         ADD_CODE(td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2717                         ADD_CODE(td, get_data_item_index (td, field));
2718                         if (mt == MINT_TYPE_VT) {
2719                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2720                                 int size = mono_class_value_size (klass, NULL);
2721                                 POP_VT (td, size);
2722                                 WRITE32 (td, &size);
2723                         }
2724                         td->ip += 5;
2725                         --td->sp;
2726                         break;
2727                 case CEE_STOBJ: {
2728                         int size;
2729                         token = read32 (td->ip + 1);
2730
2731                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2732                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2733                         else
2734                                 klass = mini_get_class (method, token, generic_context);
2735
2736                         BARRIER_IF_VOLATILE (td);
2737                         ADD_CODE(td, td->sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2738                         ADD_CODE(td, get_data_item_index (td, klass));
2739                         if (td->sp [-1].type == STACK_TYPE_VT) {
2740                                 size = mono_class_value_size (klass, NULL);
2741                                 size = (size + 7) & ~7;
2742                                 td->vt_sp -= size;
2743                         }
2744                         td->ip += 5;
2745                         td->sp -= 2;
2746                         break;
2747                 }
2748                 case CEE_CONV_OVF_I_UN:
2749                 case CEE_CONV_OVF_U_UN:
2750                         CHECK_STACK (td, 1);
2751                         switch (td->sp [-1].type) {
2752                         case STACK_TYPE_R8:
2753 #if SIZEOF_VOID_P == 8
2754                                 ADD_CODE(td, MINT_CONV_OVF_I8_UN_R8);
2755 #else
2756                                 ADD_CODE(td, MINT_CONV_OVF_I4_UN_R8);
2757 #endif
2758                                 break;
2759                         case STACK_TYPE_I8:
2760 #if SIZEOF_VOID_P == 4
2761                                 ADD_CODE (td, MINT_CONV_OVF_I4_UN_I8);
2762 #endif
2763                                 break;
2764                         case STACK_TYPE_I4:
2765 #if SIZEOF_VOID_P == 8
2766                                 ADD_CODE(td, MINT_CONV_I8_U4);
2767 #elif SIZEOF_VOID_P == 4
2768                                 if (*td->ip == CEE_CONV_OVF_I_UN)
2769                                         ADD_CODE(td, MINT_CONV_OVF_I4_U4);
2770 #endif
2771                                 break;
2772                         default:
2773                                 g_assert_not_reached ();
2774                                 break;
2775                         }
2776                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2777                         ++td->ip;
2778                         break;
2779                 case CEE_CONV_OVF_I8_UN:
2780                 case CEE_CONV_OVF_U8_UN:
2781                         CHECK_STACK (td, 1);
2782                         switch (td->sp [-1].type) {
2783                         case STACK_TYPE_R8:
2784                                 ADD_CODE(td, MINT_CONV_OVF_I8_UN_R8);
2785                                 break;
2786                         case STACK_TYPE_I8:
2787                                 if (*td->ip == CEE_CONV_OVF_I8_UN)
2788                                         ADD_CODE (td, MINT_CONV_OVF_I8_U8);
2789                                 break;
2790                         case STACK_TYPE_I4:
2791                                 ADD_CODE(td, MINT_CONV_I8_U4);
2792                                 break;
2793                         default:
2794                                 g_assert_not_reached ();
2795                                 break;
2796                         }
2797                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2798                         ++td->ip;
2799                         break;
2800                 case CEE_BOX: {
2801                         int size;
2802                         CHECK_STACK (td, 1);
2803                         token = read32 (td->ip + 1);
2804                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2805                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2806                         else
2807                                 klass = mini_get_class (method, token, generic_context);
2808
2809                         if (mono_class_is_nullable (klass)) {
2810                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2811                                 /* td->ip is incremented by interp_transform_call */
2812                                 interp_transform_call (td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2813                         } else if (!klass->valuetype) {
2814                                 /* already boxed, do nothing. */
2815                                 td->ip += 5;
2816                         } else {
2817                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2818                                         size = mono_class_value_size (klass, NULL);
2819                                         size = (size + 7) & ~7;
2820                                         td->vt_sp -= size;
2821                                 }
2822                                 ADD_CODE(td, MINT_BOX);
2823                                 ADD_CODE(td, get_data_item_index (td, klass));
2824                                 ADD_CODE (td, 0);
2825                                 SET_TYPE(td->sp - 1, STACK_TYPE_O, klass);
2826                                 td->ip += 5;
2827                         }
2828
2829                         break;
2830                 }
2831                 case CEE_NEWARR: {
2832                         CHECK_STACK (td, 1);
2833                         token = read32 (td->ip + 1);
2834
2835                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2836                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2837                         else
2838                                 klass = mini_get_class (method, token, generic_context);
2839
2840                         unsigned char lentype = (td->sp - 1)->type;
2841                         if (lentype == STACK_TYPE_I8) {
2842                                 /* mimic mini behaviour */
2843                                 ADD_CODE (td, MINT_CONV_OVF_U4_I8);
2844                         } else {
2845                                 g_assert (lentype == STACK_TYPE_I4);
2846                                 ADD_CODE (td, MINT_CONV_OVF_U4_I4);
2847                         }
2848                         SET_SIMPLE_TYPE (td->sp - 1, STACK_TYPE_I4);
2849                         ADD_CODE (td, MINT_NEWARR);
2850                         ADD_CODE (td, get_data_item_index (td, klass));
2851                         SET_TYPE (td->sp - 1, STACK_TYPE_O, klass);
2852                         td->ip += 5;
2853                         break;
2854                 }
2855                 case CEE_LDLEN:
2856                         CHECK_STACK (td, 1);
2857                         SIMPLE_OP (td, MINT_LDLEN);
2858                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2859                         break;
2860                 case CEE_LDELEMA:
2861                         CHECK_STACK (td, 2);
2862                         ENSURE_I4 (td, 1);
2863                         token = read32 (td->ip + 1);
2864
2865                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2866                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2867                         else
2868                                 klass = mini_get_class (method, token, generic_context);
2869
2870                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2871                                 ADD_CODE (td, MINT_LDELEMA_TC);
2872                         } else {
2873                                 ADD_CODE (td, MINT_LDELEMA);
2874                         }
2875                         ADD_CODE (td, get_data_item_index (td, klass));
2876                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2877                         ADD_CODE (td, 2);
2878                         readonly = FALSE;
2879
2880                         td->ip += 5;
2881                         --td->sp;
2882                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
2883                         break;
2884                 case CEE_LDELEM_I1:
2885                         CHECK_STACK (td, 2);
2886                         ENSURE_I4 (td, 1);
2887                         SIMPLE_OP (td, MINT_LDELEM_I1);
2888                         --td->sp;
2889                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2890                         break;
2891                 case CEE_LDELEM_U1:
2892                         CHECK_STACK (td, 2);
2893                         ENSURE_I4 (td, 1);
2894                         SIMPLE_OP (td, MINT_LDELEM_U1);
2895                         --td->sp;
2896                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2897                         break;
2898                 case CEE_LDELEM_I2:
2899                         CHECK_STACK (td, 2);
2900                         ENSURE_I4 (td, 1);
2901                         SIMPLE_OP (td, MINT_LDELEM_I2);
2902                         --td->sp;
2903                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2904                         break;
2905                 case CEE_LDELEM_U2:
2906                         CHECK_STACK (td, 2);
2907                         ENSURE_I4 (td, 1);
2908                         SIMPLE_OP (td, MINT_LDELEM_U2);
2909                         --td->sp;
2910                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2911                         break;
2912                 case CEE_LDELEM_I4:
2913                         CHECK_STACK (td, 2);
2914                         ENSURE_I4 (td, 1);
2915                         SIMPLE_OP (td, MINT_LDELEM_I4);
2916                         --td->sp;
2917                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2918                         break;
2919                 case CEE_LDELEM_U4:
2920                         CHECK_STACK (td, 2);
2921                         ENSURE_I4 (td, 1);
2922                         SIMPLE_OP (td, MINT_LDELEM_U4);
2923                         --td->sp;
2924                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2925                         break;
2926                 case CEE_LDELEM_I8:
2927                         CHECK_STACK (td, 2);
2928                         ENSURE_I4 (td, 1);
2929                         SIMPLE_OP (td, MINT_LDELEM_I8);
2930                         --td->sp;
2931                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
2932                         break;
2933                 case CEE_LDELEM_I:
2934                         CHECK_STACK (td, 2);
2935                         ENSURE_I4 (td, 1);
2936                         SIMPLE_OP (td, MINT_LDELEM_I);
2937                         --td->sp;
2938                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
2939                         break;
2940                 case CEE_LDELEM_R4:
2941                         CHECK_STACK (td, 2);
2942                         ENSURE_I4 (td, 1);
2943                         SIMPLE_OP (td, MINT_LDELEM_R4);
2944                         --td->sp;
2945                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2946                         break;
2947                 case CEE_LDELEM_R8:
2948                         CHECK_STACK (td, 2);
2949                         ENSURE_I4 (td, 1);
2950                         SIMPLE_OP (td, MINT_LDELEM_R8);
2951                         --td->sp;
2952                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
2953                         break;
2954                 case CEE_LDELEM_REF:
2955                         CHECK_STACK (td, 2);
2956                         ENSURE_I4 (td, 1);
2957                         SIMPLE_OP (td, MINT_LDELEM_REF);
2958                         --td->sp;
2959                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_O);
2960                         break;
2961                 case CEE_LDELEM:
2962                         CHECK_STACK (td, 2);
2963                         token = read32 (td->ip + 1);
2964                         klass = mini_get_class (method, token, generic_context);
2965                         switch (mint_type (&klass->byval_arg)) {
2966                                 case MINT_TYPE_I1:
2967                                         ENSURE_I4 (td, 1);
2968                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2969                                         --td->sp;
2970                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2971                                         break;
2972                                 case MINT_TYPE_U1:
2973                                         ENSURE_I4 (td, 1);
2974                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2975                                         --td->sp;
2976                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2977                                         break;
2978                                 case MINT_TYPE_U2:
2979                                         ENSURE_I4 (td, 1);
2980                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2981                                         --td->sp;
2982                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2983                                         break;
2984                                 case MINT_TYPE_I2:
2985                                         ENSURE_I4 (td, 1);
2986                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2987                                         --td->sp;
2988                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2989                                         break;
2990                                 case MINT_TYPE_I4:
2991                                         ENSURE_I4 (td, 1);
2992                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2993                                         --td->sp;
2994                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
2995                                         break;
2996                                 case MINT_TYPE_I8:
2997                                         ENSURE_I4 (td, 1);
2998                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2999                                         --td->sp;
3000                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
3001                                         break;
3002                                 case MINT_TYPE_R4:
3003                                         ENSURE_I4 (td, 1);
3004                                         SIMPLE_OP (td, MINT_LDELEM_R4);
3005                                         --td->sp;
3006                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
3007                                         break;
3008                                 case MINT_TYPE_R8:
3009                                         ENSURE_I4 (td, 1);
3010                                         SIMPLE_OP (td, MINT_LDELEM_R8);
3011                                         --td->sp;
3012                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_R8);
3013                                         break;
3014                                 case MINT_TYPE_O:
3015                                         ENSURE_I4 (td, 1);
3016                                         SIMPLE_OP (td, MINT_LDELEM_REF);
3017                                         --td->sp;
3018                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_O);
3019                                         break;
3020                                 case MINT_TYPE_VT: {
3021                                         int size = mono_class_value_size (klass, NULL);
3022                                         ENSURE_I4 (td, 1);
3023                                         SIMPLE_OP (td, MINT_LDELEM_VT);
3024                                         ADD_CODE (td, get_data_item_index (td, klass));
3025                                         WRITE32 (td, &size);
3026                                         --td->sp;
3027                                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_VT);
3028                                         PUSH_VT (td, size);
3029                                         break;
3030                                 }
3031                                 default: {
3032                                         GString *res = g_string_new ("");
3033                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
3034                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
3035                                         g_string_free (res, TRUE);
3036                                         g_assert (0);
3037                                         break;
3038                                 }
3039                         }
3040                         td->ip += 4;
3041                         break;
3042                 case CEE_STELEM_I:
3043                         CHECK_STACK (td, 3);
3044                         ENSURE_I4 (td, 2);
3045                         SIMPLE_OP (td, MINT_STELEM_I);
3046                         td->sp -= 3;
3047                         break;
3048                 case CEE_STELEM_I1:
3049                         CHECK_STACK (td, 3);
3050                         ENSURE_I4 (td, 2);
3051                         SIMPLE_OP (td, MINT_STELEM_I1);
3052                         td->sp -= 3;
3053                         break;
3054                 case CEE_STELEM_I2:
3055                         CHECK_STACK (td, 3);
3056                         ENSURE_I4 (td, 2);
3057                         SIMPLE_OP (td, MINT_STELEM_I2);
3058                         td->sp -= 3;
3059                         break;
3060                 case CEE_STELEM_I4:
3061                         CHECK_STACK (td, 3);
3062                         ENSURE_I4 (td, 2);
3063                         SIMPLE_OP (td, MINT_STELEM_I4);
3064                         td->sp -= 3;
3065                         break;
3066                 case CEE_STELEM_I8:
3067                         CHECK_STACK (td, 3);
3068                         ENSURE_I4 (td, 2);
3069                         SIMPLE_OP (td, MINT_STELEM_I8);
3070                         td->sp -= 3;
3071                         break;
3072                 case CEE_STELEM_R4:
3073                         CHECK_STACK (td, 3);
3074                         ENSURE_I4 (td, 2);
3075                         SIMPLE_OP (td, MINT_STELEM_R4);
3076                         td->sp -= 3;
3077                         break;
3078                 case CEE_STELEM_R8:
3079                         CHECK_STACK (td, 3);
3080                         ENSURE_I4 (td, 2);
3081                         SIMPLE_OP (td, MINT_STELEM_R8);
3082                         td->sp -= 3;
3083                         break;
3084                 case CEE_STELEM_REF:
3085                         CHECK_STACK (td, 3);
3086                         ENSURE_I4 (td, 2);
3087                         SIMPLE_OP (td, MINT_STELEM_REF);
3088                         td->sp -= 3;
3089                         break;
3090                 case CEE_STELEM:
3091                         CHECK_STACK (td, 3);
3092                         ENSURE_I4 (td, 2);
3093                         token = read32 (td->ip + 1);
3094                         klass = mini_get_class (method, token, generic_context);
3095                         switch (mint_type (&klass->byval_arg)) {
3096                                 case MINT_TYPE_U1:
3097                                         SIMPLE_OP (td, MINT_STELEM_U1);
3098                                         break;
3099                                 case MINT_TYPE_U2:
3100                                         SIMPLE_OP (td, MINT_STELEM_U2);
3101                                         break;
3102                                 case MINT_TYPE_I4:
3103                                         SIMPLE_OP (td, MINT_STELEM_I4);
3104                                         break;
3105                                 case MINT_TYPE_I8:
3106                                         SIMPLE_OP (td, MINT_STELEM_I8);
3107                                         break;
3108                                 case MINT_TYPE_O:
3109                                         SIMPLE_OP (td, MINT_STELEM_REF);
3110                                         break;
3111                                 case MINT_TYPE_VT: {
3112                                         int size = mono_class_value_size (klass, NULL);
3113                                         SIMPLE_OP (td, MINT_STELEM_VT);
3114                                         ADD_CODE (td, get_data_item_index (td, klass));
3115                                         WRITE32 (td, &size);
3116                                         POP_VT (td, size);
3117                                         break;
3118                                 }
3119                                 default: {
3120                                         GString *res = g_string_new ("");
3121                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
3122                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
3123                                         g_string_free (res, TRUE);
3124                                         g_assert (0);
3125                                         break;
3126                                 }
3127                         }
3128                         td->ip += 4;
3129                         td->sp -= 3;
3130                         break;
3131 #if 0
3132                 case CEE_CONV_OVF_U1:
3133
3134                 case CEE_CONV_OVF_I8:
3135
3136 #if SIZEOF_VOID_P == 8
3137                 case CEE_CONV_OVF_U:
3138 #endif
3139 #endif
3140                 case CEE_CKFINITE:
3141                         CHECK_STACK (td, 1);
3142                         SIMPLE_OP (td, MINT_CKFINITE);
3143                         break;
3144                 case CEE_MKREFANY:
3145                         CHECK_STACK (td, 1);
3146                         ENSURE_I4 (td, 2);
3147                         token = read32 (td->ip + 1);
3148                         klass = mini_get_class (method, token, generic_context);
3149
3150                         ADD_CODE (td, MINT_MKREFANY);
3151                         ADD_CODE (td, get_data_item_index (td, klass));
3152
3153                         td->ip += 5;
3154                         PUSH_VT (td, sizeof (MonoTypedRef));
3155                         SET_TYPE(td->sp - 1, STACK_TYPE_VT, mono_defaults.typed_reference_class);
3156                         break;
3157                 case CEE_REFANYVAL: {
3158                         CHECK_STACK (td, 1);
3159                         ENSURE_I4 (td, 2);
3160                         token = read32 (td->ip + 1);
3161
3162                         ADD_CODE (td, MINT_REFANYVAL);
3163
3164                         POP_VT (td, sizeof (MonoTypedRef));
3165                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3166
3167                         td->ip += 5;
3168                         break;
3169                 }
3170                 case CEE_CONV_OVF_I1:
3171                 case CEE_CONV_OVF_I1_UN:
3172                         CHECK_STACK (td, 1);
3173                         switch (td->sp [-1].type) {
3174                         case STACK_TYPE_R8:
3175                                 ADD_CODE(td, MINT_CONV_OVF_I1_R8);
3176                                 break;
3177                         case STACK_TYPE_I4:
3178                                 ADD_CODE(td, MINT_CONV_OVF_I1_I4);
3179                                 break;
3180                         case STACK_TYPE_I8:
3181                                 ADD_CODE(td, MINT_CONV_OVF_I1_I8);
3182                                 break;
3183                         default:
3184                                 g_assert_not_reached ();
3185                         }
3186                         ++td->ip;
3187                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3188                         break;
3189                 case CEE_CONV_OVF_U1:
3190                 case CEE_CONV_OVF_U1_UN:
3191                         CHECK_STACK (td, 1);
3192                         switch (td->sp [-1].type) {
3193                         case STACK_TYPE_R8:
3194                                 ADD_CODE(td, MINT_CONV_OVF_U1_R8);
3195                                 break;
3196                         case STACK_TYPE_I4:
3197                                 ADD_CODE(td, MINT_CONV_OVF_U1_I4);
3198                                 break;
3199                         case STACK_TYPE_I8:
3200                                 ADD_CODE(td, MINT_CONV_OVF_U1_I8);
3201                                 break;
3202                         default:
3203                                 g_assert_not_reached ();
3204                         }
3205                         ++td->ip;
3206                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3207                         break;
3208                 case CEE_CONV_OVF_I2:
3209                 case CEE_CONV_OVF_I2_UN:
3210                         CHECK_STACK (td, 1);
3211                         switch (td->sp [-1].type) {
3212                         case STACK_TYPE_R8:
3213                                 ADD_CODE(td, MINT_CONV_OVF_I2_R8);
3214                                 break;
3215                         case STACK_TYPE_I4:
3216                                 ADD_CODE(td, MINT_CONV_OVF_I2_I4);
3217                                 break;
3218                         case STACK_TYPE_I8:
3219                                 ADD_CODE(td, MINT_CONV_OVF_I2_I8);
3220                                 break;
3221                         default:
3222                                 g_assert_not_reached ();
3223                         }
3224                         ++td->ip;
3225                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3226                         break;
3227                 case CEE_CONV_OVF_U2_UN:
3228                 case CEE_CONV_OVF_U2:
3229                         CHECK_STACK (td, 1);
3230                         switch (td->sp [-1].type) {
3231                         case STACK_TYPE_R8:
3232                                 ADD_CODE(td, MINT_CONV_OVF_U2_R8);
3233                                 break;
3234                         case STACK_TYPE_I4:
3235                                 ADD_CODE(td, MINT_CONV_OVF_U2_I4);
3236                                 break;
3237                         case STACK_TYPE_I8:
3238                                 ADD_CODE(td, MINT_CONV_OVF_U2_I8);
3239                                 break;
3240                         default:
3241                                 g_assert_not_reached ();
3242                         }
3243                         ++td->ip;
3244                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3245                         break;
3246 #if SIZEOF_VOID_P == 4
3247                 case CEE_CONV_OVF_I:
3248 #endif
3249                 case CEE_CONV_OVF_I4:
3250                 case CEE_CONV_OVF_I4_UN:
3251                         CHECK_STACK (td, 1);
3252                         switch (td->sp [-1].type) {
3253                         case STACK_TYPE_R8:
3254                                 ADD_CODE(td, MINT_CONV_OVF_I4_R8);
3255                                 break;
3256                         case STACK_TYPE_I4:
3257                                 if (*td->ip == CEE_CONV_OVF_I4_UN)
3258                                         ADD_CODE(td, MINT_CONV_OVF_I4_U4);
3259                                 break;
3260                         case STACK_TYPE_I8:
3261                                 if (*td->ip == CEE_CONV_OVF_I4_UN)
3262                                         ADD_CODE (td, MINT_CONV_OVF_I4_U8);
3263                                 else
3264                                         ADD_CODE (td, MINT_CONV_OVF_I4_I8);
3265                                 break;
3266                         default:
3267                                 g_assert_not_reached ();
3268                         }
3269                         ++td->ip;
3270                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3271                         break;
3272 #if SIZEOF_VOID_P == 4
3273                 case CEE_CONV_OVF_U:
3274 #endif
3275                 case CEE_CONV_OVF_U4:
3276                 case CEE_CONV_OVF_U4_UN:
3277                         CHECK_STACK (td, 1);
3278                         switch (td->sp [-1].type) {
3279                         case STACK_TYPE_R8:
3280                                 ADD_CODE(td, MINT_CONV_OVF_U4_R8);
3281                                 break;
3282                         case STACK_TYPE_I4:
3283                                 if (*td->ip != CEE_CONV_OVF_U4_UN)
3284                                         ADD_CODE(td, MINT_CONV_OVF_U4_I4);
3285                                 break;
3286                         case STACK_TYPE_I8:
3287                                 ADD_CODE(td, MINT_CONV_OVF_U4_I8);
3288                                 break;
3289                         default:
3290                                 g_assert_not_reached ();
3291                         }
3292                         ++td->ip;
3293                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3294                         break;
3295 #if SIZEOF_VOID_P == 8
3296                 case CEE_CONV_OVF_I:
3297 #endif
3298                 case CEE_CONV_OVF_I8:
3299                         CHECK_STACK (td, 1);
3300                         switch (td->sp [-1].type) {
3301                         case STACK_TYPE_R8:
3302                                 ADD_CODE(td, MINT_CONV_OVF_I8_R8);
3303                                 break;
3304                         case STACK_TYPE_I4:
3305                                 ADD_CODE(td, MINT_CONV_I8_I4);
3306                                 break;
3307                         case STACK_TYPE_I8:
3308                                 break;
3309                         default:
3310                                 g_assert_not_reached ();
3311                         }
3312                         ++td->ip;
3313                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
3314                         break;
3315 #if SIZEOF_VOID_P == 8
3316                 case CEE_CONV_OVF_U:
3317 #endif
3318                 case CEE_CONV_OVF_U8:
3319                         CHECK_STACK (td, 1);
3320                         switch (td->sp [-1].type) {
3321                         case STACK_TYPE_R8:
3322                                 ADD_CODE(td, MINT_CONV_OVF_U8_R8);
3323                                 break;
3324                         case STACK_TYPE_I4:
3325                                 ADD_CODE(td, MINT_CONV_OVF_U8_I4);
3326                                 break;
3327                         case STACK_TYPE_I8:
3328                                 ADD_CODE (td, MINT_CONV_OVF_U8_I8);
3329                                 break;
3330                         default:
3331                                 g_assert_not_reached ();
3332                         }
3333                         ++td->ip;
3334                         SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I8);
3335                         break;
3336                 case CEE_LDTOKEN: {
3337                         int size;
3338                         gpointer handle;
3339                         token = read32 (td->ip + 1);
3340                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3341                                 handle = mono_method_get_wrapper_data (method, token);
3342                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
3343                                 if (klass == mono_defaults.typehandle_class)
3344                                         handle = &((MonoClass *) handle)->byval_arg;
3345
3346                                 if (generic_context) {
3347                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
3348                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3349                                 }
3350                         } else {
3351                                 handle = mono_ldtoken (image, token, &klass, generic_context);
3352                         }
3353                         mono_class_init (klass);
3354                         mt = mint_type (&klass->byval_arg);
3355                         g_assert (mt == MINT_TYPE_VT);
3356                         size = mono_class_value_size (klass, NULL);
3357                         g_assert (size == sizeof(gpointer));
3358                         PUSH_VT (td, sizeof(gpointer));
3359                         ADD_CODE (td, MINT_LDTOKEN);
3360                         ADD_CODE (td, get_data_item_index (td, handle));
3361
3362                         SET_TYPE (td->sp, stack_type [mt], klass);
3363                         td->sp++;
3364                         td->ip += 5;
3365                         break;
3366                 }
3367                 case CEE_ADD_OVF:
3368                         binary_arith_op(td, MINT_ADD_OVF_I4);
3369                         ++td->ip;
3370                         break;
3371                 case CEE_ADD_OVF_UN:
3372                         binary_arith_op(td, MINT_ADD_OVF_UN_I4);
3373                         ++td->ip;
3374                         break;
3375                 case CEE_MUL_OVF:
3376                         binary_arith_op(td, MINT_MUL_OVF_I4);
3377                         ++td->ip;
3378                         break;
3379                 case CEE_MUL_OVF_UN:
3380                         binary_arith_op(td, MINT_MUL_OVF_UN_I4);
3381                         ++td->ip;
3382                         break;
3383                 case CEE_SUB_OVF:
3384                         binary_arith_op(td, MINT_SUB_OVF_I4);
3385                         ++td->ip;
3386                         break;
3387                 case CEE_SUB_OVF_UN:
3388                         binary_arith_op(td, MINT_SUB_OVF_UN_I4);
3389                         ++td->ip;
3390                         break;
3391                 case CEE_ENDFINALLY:
3392                         g_assert (td->clause_indexes [in_offset] != -1);
3393                         td->sp = td->stack;
3394                         SIMPLE_OP (td, MINT_ENDFINALLY);
3395                         ADD_CODE (td, td->clause_indexes [in_offset]);
3396                         generating_code = 0;
3397                         break;
3398                 case CEE_LEAVE:
3399                         td->sp = td->stack;
3400                         handle_branch (td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td->ip + 1));
3401                         td->ip += 5;
3402                         generating_code = 0;
3403                         break;
3404                 case CEE_LEAVE_S:
3405                         td->sp = td->stack;
3406                         handle_branch (td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td->ip [1]);
3407                         td->ip += 2;
3408                         generating_code = 0;
3409                         break;
3410                 case CEE_UNUSED41:
3411                         ++td->ip;
3412                         switch (*td->ip) {
3413                                 case CEE_MONO_CALLI_EXTRA_ARG:
3414                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
3415                                         ADD_CODE (td, MINT_POP);
3416                                         ADD_CODE (td, 1);
3417                                         --td->sp;
3418                                         interp_transform_call (td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
3419                                         break;
3420                                 case CEE_MONO_JIT_ICALL_ADDR: {
3421                                         guint32 token;
3422                                         gpointer func;
3423                                         MonoJitICallInfo *info;
3424
3425                                         token = read32 (td->ip + 1);
3426                                         td->ip += 5;
3427                                         func = mono_method_get_wrapper_data (method, token);
3428                                         info = mono_find_jit_icall_by_addr (func);
3429
3430                                         ADD_CODE (td, MINT_LDFTN);
3431                                         ADD_CODE (td, get_data_item_index (td, func));
3432                                         PUSH_SIMPLE_TYPE (td, STACK_TYPE_I);
3433                                         break;
3434                                 }
3435                                 case CEE_MONO_ICALL: {
3436                                         guint32 token;
3437                                         gpointer func;
3438                                         MonoJitICallInfo *info;
3439
3440                                         token = read32 (td->ip + 1);
3441                                         td->ip += 5;
3442                                         func = mono_method_get_wrapper_data (method, token);
3443                                         info = mono_find_jit_icall_by_addr (func);
3444                                         g_assert (info);
3445
3446                                         CHECK_STACK (td, info->sig->param_count);
3447                                         switch (info->sig->param_count) {
3448                                         case 0:
3449                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3450                                                         ADD_CODE (td,MINT_ICALL_V_V);
3451                                                 else
3452                                                         ADD_CODE (td, MINT_ICALL_V_P);
3453                                                 break;
3454                                         case 1:
3455                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3456                                                         ADD_CODE (td,MINT_ICALL_P_V);
3457                                                 else
3458                                                         ADD_CODE (td,MINT_ICALL_P_P);
3459                                                 break;
3460                                         case 2:
3461                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
3462                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3463                                                                 ADD_CODE (td,MINT_ICALL_PI_V);
3464                                                         else
3465                                                                 ADD_CODE (td,MINT_ICALL_PP_V);
3466                                                 } else {
3467                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3468                                                                 ADD_CODE (td,MINT_ICALL_PI_P);
3469                                                         else
3470                                                                 ADD_CODE (td,MINT_ICALL_PP_P);
3471                                                 }
3472                                                 break;
3473                                         case 3:
3474                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
3475                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
3476                                                         ADD_CODE (td,MINT_ICALL_PPI_V);
3477                                                 else
3478                                                         ADD_CODE (td,MINT_ICALL_PPP_V);
3479                                                 break;
3480                                         default:
3481                                                 g_assert_not_reached ();
3482                                         }
3483
3484                                         if (func == mono_ftnptr_to_delegate) {
3485                                                 g_error ("TODO: ?");
3486                                         }
3487                                         ADD_CODE(td, get_data_item_index (td, func));
3488                                         td->sp -= info->sig->param_count;
3489
3490                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
3491                                                 td->sp ++;
3492                                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I);
3493                                         }
3494                                         break;
3495                                 }
3496                         case CEE_MONO_VTADDR: {
3497                                 int size;
3498                                 CHECK_STACK (td, 1);
3499                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
3500                                         size = mono_class_native_size(td->sp [-1].klass, NULL);
3501                                 else
3502                                         size = mono_class_value_size(td->sp [-1].klass, NULL);
3503                                 size = (size + 7) & ~7;
3504                                 ADD_CODE(td, MINT_VTRESULT);
3505                                 ADD_CODE(td, 0);
3506                                 WRITE32(td, &size);
3507                                 td->vt_sp -= size;
3508                                 ++td->ip;
3509                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3510                                 break;
3511                         }
3512                         case CEE_MONO_LDPTR:
3513                         case CEE_MONO_CLASSCONST:
3514                                 token = read32 (td->ip + 1);
3515                                 td->ip += 5;
3516                                 ADD_CODE(td, MINT_MONO_LDPTR);
3517                                 ADD_CODE(td, get_data_item_index (td, mono_method_get_wrapper_data (method, token)));
3518                                 td->sp [0].type = STACK_TYPE_I;
3519                                 ++td->sp;
3520                                 break;
3521                         case CEE_MONO_OBJADDR:
3522                                 CHECK_STACK (td, 1);
3523                                 ++td->ip;
3524                                 td->sp[-1].type = STACK_TYPE_MP;
3525                                 /* do nothing? */
3526                                 break;
3527                         case CEE_MONO_NEWOBJ:
3528                                 token = read32 (td->ip + 1);
3529                                 td->ip += 5;
3530                                 ADD_CODE(td, MINT_MONO_NEWOBJ);
3531                                 ADD_CODE(td, get_data_item_index (td, mono_method_get_wrapper_data (method, token)));
3532                                 td->sp [0].type = STACK_TYPE_O;
3533                                 ++td->sp;
3534                                 break;
3535                         case CEE_MONO_RETOBJ:
3536                                 CHECK_STACK (td, 1);
3537                                 token = read32 (td->ip + 1);
3538                                 td->ip += 5;
3539                                 ADD_CODE(td, MINT_MONO_RETOBJ);
3540                                 td->sp--;
3541
3542                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3543
3544                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
3545
3546                                 if (td->sp > td->stack)
3547                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td->sp-td->stack);
3548                                 break;
3549                         case CEE_MONO_LDNATIVEOBJ:
3550                                 token = read32 (td->ip + 1);
3551                                 td->ip += 5;
3552                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3553                                 g_assert(klass->valuetype);
3554                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3555                                 break;
3556                         case CEE_MONO_TLS: {
3557                                 gint32 key = read32 (td->ip + 1);
3558                                 td->ip += 5;
3559                                 g_assert (key < TLS_KEY_NUM);
3560                                 ADD_CODE (td, MINT_MONO_TLS);
3561                                 WRITE32 (td, &key);
3562                                 PUSH_SIMPLE_TYPE (td, STACK_TYPE_MP);
3563                                 break;
3564                         }
3565                         case CEE_MONO_ATOMIC_STORE_I4:
3566                                 CHECK_STACK (td, 2);
3567                                 SIMPLE_OP (td, MINT_MONO_ATOMIC_STORE_I4);
3568                                 td->sp -= 2;
3569                                 td->ip++;
3570                                 break;
3571                         case CEE_MONO_SAVE_LMF:
3572                         case CEE_MONO_RESTORE_LMF:
3573                         case CEE_MONO_NOT_TAKEN:
3574                                 ++td->ip;
3575                                 break;
3576                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
3577                                 ADD_CODE (td, MINT_MONO_LDPTR);
3578                                 ADD_CODE (td, get_data_item_index (td, mono_thread_interruption_request_flag ()));
3579                                 PUSH_TYPE (td, STACK_TYPE_MP, NULL);
3580                                 ++td->ip;
3581                                 break;
3582                         case CEE_MONO_MEMORY_BARRIER:
3583                                 ADD_CODE (td, MINT_MONO_MEMORY_BARRIER);
3584                                 ++td->ip;
3585                                 break;
3586                         case CEE_MONO_JIT_ATTACH:
3587                                 ADD_CODE (td, MINT_MONO_JIT_ATTACH);
3588                                 ++td->ip;
3589                                 break;
3590                         case CEE_MONO_JIT_DETACH:
3591                                 ADD_CODE (td, MINT_MONO_JIT_DETACH);
3592                                 ++td->ip;
3593                                 break;
3594                         case CEE_MONO_LDDOMAIN:
3595                                 ADD_CODE (td, MINT_MONO_LDDOMAIN);
3596                                 td->sp [0].type = STACK_TYPE_I;
3597                                 ++td->sp;
3598                                 ++td->ip;
3599                                 break;
3600                         default:
3601                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td->ip, td->ip-header->code);
3602                         }
3603                         break;
3604 #if 0
3605                 case CEE_PREFIX7:
3606                 case CEE_PREFIX6:
3607                 case CEE_PREFIX5:
3608                 case CEE_PREFIX4:
3609                 case CEE_PREFIX3:
3610                 case CEE_PREFIX2:
3611                 case CEE_PREFIXREF: ves_abort(); break;
3612 #endif
3613                 /*
3614                  * Note: Exceptions thrown when executing a prefixed opcode need
3615                  * to take into account the number of prefix bytes (usually the
3616                  * throw point is just (ip - n_prefix_bytes).
3617                  */
3618                 case CEE_PREFIX1:
3619                         ++td->ip;
3620                         switch (*td->ip) {
3621 #if 0
3622                         case CEE_ARGLIST: ves_abort(); break;
3623 #endif
3624                         case CEE_CEQ:
3625                                 CHECK_STACK(td, 2);
3626                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3627                                         ADD_CODE(td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3628                                 else
3629                                         ADD_CODE(td, MINT_CEQ_I4 + td->sp [-1].type - STACK_TYPE_I4);
3630                                 --td->sp;
3631                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3632                                 ++td->ip;
3633                                 break;
3634                         case CEE_CGT:
3635                                 CHECK_STACK(td, 2);
3636                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3637                                         ADD_CODE(td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3638                                 else
3639                                         ADD_CODE(td, MINT_CGT_I4 + td->sp [-1].type - STACK_TYPE_I4);
3640                                 --td->sp;
3641                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3642                                 ++td->ip;
3643                                 break;
3644                         case CEE_CGT_UN:
3645                                 CHECK_STACK(td, 2);
3646                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3647                                         ADD_CODE(td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3648                                 else
3649                                         ADD_CODE(td, MINT_CGT_UN_I4 + td->sp [-1].type - STACK_TYPE_I4);
3650                                 --td->sp;
3651                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3652                                 ++td->ip;
3653                                 break;
3654                         case CEE_CLT:
3655                                 CHECK_STACK(td, 2);
3656                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3657                                         ADD_CODE(td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3658                                 else
3659                                         ADD_CODE(td, MINT_CLT_I4 + td->sp [-1].type - STACK_TYPE_I4);
3660                                 --td->sp;
3661                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3662                                 ++td->ip;
3663                                 break;
3664                         case CEE_CLT_UN:
3665                                 CHECK_STACK(td, 2);
3666                                 if (td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP)
3667                                         ADD_CODE(td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3668                                 else
3669                                         ADD_CODE(td, MINT_CLT_UN_I4 + td->sp [-1].type - STACK_TYPE_I4);
3670                                 --td->sp;
3671                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_I4);
3672                                 ++td->ip;
3673                                 break;
3674                         case CEE_LDVIRTFTN: /* fallthrough */
3675                         case CEE_LDFTN: {
3676                                 MonoMethod *m;
3677                                 if (*td->ip == CEE_LDVIRTFTN) {
3678                                         CHECK_STACK (td, 1);
3679                                         --td->sp;
3680                                 }
3681                                 token = read32 (td->ip + 1);
3682                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3683                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3684                                 else
3685                                         m = mono_get_method_full (image, token, NULL, generic_context);
3686
3687                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3688                                         m = mono_marshal_get_synchronized_wrapper (m);
3689
3690                                 ADD_CODE(td, *td->ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3691                                 ADD_CODE(td, get_data_item_index (td, mono_interp_get_imethod (domain, m, &error)));
3692                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3693                                 td->ip += 5;
3694                                 PUSH_SIMPLE_TYPE (td, STACK_TYPE_F);
3695                                 break;
3696                         }
3697                         case CEE_LDARG:
3698                                 load_arg (td, read16 (td->ip + 1));
3699                                 td->ip += 3;
3700                                 break;
3701                         case CEE_LDARGA: {
3702                                 int n = read16 (td->ip + 1);
3703                                 ADD_CODE (td, MINT_LDARGA);
3704                                 ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offsets */
3705                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
3706                                 td->ip += 3;
3707                                 break;
3708                         }
3709                         case CEE_STARG:
3710                                 store_arg (td, read16 (td->ip + 1));
3711                                 td->ip += 3;
3712                                 break;
3713                         case CEE_LDLOC:
3714                                 load_local (td, read16 (td->ip + 1));
3715                                 td->ip += 3;
3716                                 break;
3717                         case CEE_LDLOCA:
3718                                 ADD_CODE(td, MINT_LDLOCA_S);
3719                                 ADD_CODE(td, td->rtm->local_offsets [read16 (td->ip + 1)]);
3720                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_MP);
3721                                 td->ip += 3;
3722                                 break;
3723                         case CEE_STLOC:
3724                                 store_local (td, read16 (td->ip + 1));
3725                                 td->ip += 3;
3726                                 break;
3727                         case CEE_LOCALLOC:
3728                                 CHECK_STACK (td, 1);
3729 #if SIZEOF_VOID_P == 8
3730                                 if (td->sp [-1].type == STACK_TYPE_I8)
3731                                         ADD_CODE(td, MINT_CONV_I4_I8);
3732 #endif
3733                                 ADD_CODE(td, MINT_LOCALLOC);
3734                                 if (td->sp != td->stack + 1)
3735                                         g_warning("CEE_LOCALLOC: stack not empty");
3736                                 ++td->ip;
3737                                 SET_SIMPLE_TYPE(td->sp - 1, STACK_TYPE_MP);
3738                                 break;
3739 #if 0
3740                         case CEE_UNUSED57: ves_abort(); break;
3741 #endif
3742                         case CEE_ENDFILTER:
3743                                 ADD_CODE (td, MINT_ENDFILTER);
3744                                 ++td->ip;
3745                                 break;
3746                         case CEE_UNALIGNED_:
3747                                 td->ip += 2;
3748                                 break;
3749                         case CEE_VOLATILE_:
3750                                 ++td->ip;
3751                                 volatile_ = TRUE;
3752                                 break;
3753                         case CEE_TAIL_:
3754                                 ++td->ip;
3755                                 /* FIX: should do something? */;
3756                                 break;
3757                         case CEE_INITOBJ:
3758                                 CHECK_STACK(td, 1);
3759                                 token = read32 (td->ip + 1);
3760                                 klass = mini_get_class (method, token, generic_context);
3761                                 if (klass->valuetype) {
3762                                         ADD_CODE (td, MINT_INITOBJ);
3763                                         i32 = mono_class_value_size (klass, NULL);
3764                                         WRITE32 (td, &i32);
3765                                 } else {
3766                                         ADD_CODE (td, MINT_LDNULL);
3767                                         ADD_CODE (td, MINT_STIND_REF);
3768                                 }
3769                                 td->ip += 5;
3770                                 --td->sp;
3771                                 break;
3772                         case CEE_CPBLK:
3773                                 CHECK_STACK(td, 3);
3774                                 /* FIX? convert length to I8? */
3775                                 if (volatile_)
3776                                         ADD_CODE (td, MINT_MONO_MEMORY_BARRIER);
3777                                 ADD_CODE(td, MINT_CPBLK);
3778                                 BARRIER_IF_VOLATILE (td);
3779                                 td->sp -= 3;
3780                                 ++td->ip;
3781                                 break;
3782                         case CEE_READONLY_:
3783                                 readonly = TRUE;
3784                                 td->ip += 1;
3785                                 break;
3786                         case CEE_CONSTRAINED_:
3787                                 token = read32 (td->ip + 1);
3788                                 constrained_class = mini_get_class (method, token, generic_context);
3789                                 mono_class_init (constrained_class);
3790                                 td->ip += 5;
3791                                 break;
3792                         case CEE_INITBLK:
3793                                 CHECK_STACK(td, 3);
3794                                 BARRIER_IF_VOLATILE (td);
3795                                 ADD_CODE(td, MINT_INITBLK);
3796                                 td->sp -= 3;
3797                                 td->ip += 1;
3798                                 break;
3799                         case CEE_NO_:
3800                                 /* FIXME: implement */
3801                                 td->ip += 2;
3802                                 break;
3803                         case CEE_RETHROW: {
3804                                 int clause_index = td->clause_indexes [in_offset];
3805                                 g_assert (clause_index != -1);
3806                                 SIMPLE_OP (td, MINT_RETHROW);
3807                                 ADD_CODE (td, rtm->exvar_offsets [clause_index]);
3808                                 generating_code = 0;
3809                                 break;
3810                         }
3811                         case CEE_SIZEOF: {
3812                                 gint32 size;
3813                                 token = read32 (td->ip + 1);
3814                                 td->ip += 5;
3815                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3816                                         int align;
3817                                         MonoType *type = mono_type_create_from_typespec (image, token);
3818                                         size = mono_type_size (type, &align);
3819                                 } else {
3820                                         int align;
3821                                         MonoClass *szclass = mini_get_class (method, token, generic_context);
3822                                         mono_class_init (szclass);
3823 #if 0
3824                                         if (!szclass->valuetype)
3825                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3826 #endif
3827                                         size = mono_type_size (&szclass->byval_arg, &align);
3828                                 }
3829                                 ADD_CODE(td, MINT_LDC_I4);
3830                                 WRITE32(td, &size);
3831                                 PUSH_SIMPLE_TYPE(td, STACK_TYPE_I4);
3832                                 break;
3833                         }
3834                         case CEE_REFANYTYPE:
3835                                 ADD_CODE (td, MINT_REFANYTYPE);
3836                                 td->ip += 1;
3837                                 POP_VT (td, sizeof (MonoTypedRef));
3838                                 PUSH_VT (td, sizeof (gpointer));
3839                                 SET_TYPE(td->sp - 1, STACK_TYPE_VT, NULL);
3840                                 break;
3841                         default:
3842                                 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);
3843                         }
3844                         break;
3845                 default:
3846                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td->ip, td->ip-header->code);
3847                 }
3848
3849                 if (td->new_ip - td->new_code != new_in_start_offset)
3850                         td->last_new_ip = td->new_code + new_in_start_offset;
3851                 else if (td->is_bb_start [td->in_start - td->il_code])
3852                         td->is_bb_start [td->ip - td->il_code] = 1;
3853
3854                 td->last_ip = td->in_start;
3855         }
3856
3857         /* Handle relocations */
3858         for (int i = 0; i < td->relocs->len; ++i) {
3859                 Reloc *reloc = g_ptr_array_index (td->relocs, i);
3860
3861                 int offset = td->in_offsets [reloc->target] - reloc->offset;
3862
3863                 switch (reloc->type) {
3864                 case RELOC_SHORT_BRANCH:
3865                         g_assert (td->new_code [reloc->offset + 1] == 0xffff);
3866                         td->new_code [reloc->offset + 1] = offset;
3867                         break;
3868                 case RELOC_LONG_BRANCH: {
3869                         guint16 *v = (guint16 *) &offset;
3870                         g_assert (td->new_code [reloc->offset + 1] == 0xbeef);
3871                         g_assert (td->new_code [reloc->offset + 2] == 0xdead);
3872                         td->new_code [reloc->offset + 1] = *(guint16 *) v;
3873                         td->new_code [reloc->offset + 2] = *(guint16 *) (v + 1);
3874                         break;
3875                 }
3876                 case RELOC_SWITCH: {
3877                         guint16 *v = (guint16*)&offset;
3878                         td->new_code [reloc->offset] = *(guint16*)v;
3879                         td->new_code [reloc->offset + 1] = *(guint16*)(v + 1);
3880                         break;
3881                 }
3882                 default:
3883                         g_assert_not_reached ();
3884                         break;
3885                 }
3886         }
3887
3888         if (td->verbose_level) {
3889                 const guint16 *p = td->new_code;
3890                 printf("Runtime method: %s %p, VT stack size: %d\n", mono_method_full_name (method, TRUE), rtm, td->max_vt_sp);
3891                 printf("Calculated stack size: %d, stated size: %d\n", td->max_stack_height, header->max_stack);
3892                 while (p < td->new_ip) {
3893                         p = mono_interp_dis_mintop(td->new_code, p);
3894                         printf("\n");
3895                 }
3896         }
3897         g_assert (td->max_stack_height <= (header->max_stack + 1));
3898
3899         int code_len = td->new_ip - td->new_code;
3900
3901         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3902         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3903         rtm->code = mono_domain_alloc0 (domain, (td->new_ip - td->new_code) * sizeof (gushort));
3904         memcpy (rtm->code, td->new_code, (td->new_ip - td->new_code) * sizeof(gushort));
3905         g_free (td->new_code);
3906         rtm->new_body_start = rtm->code + body_start_offset;
3907         rtm->num_clauses = header->num_clauses;
3908         for (i = 0; i < header->num_clauses; i++) {
3909                 MonoExceptionClause *c = rtm->clauses + i;
3910                 int end_off = c->try_offset + c->try_len;
3911                 c->try_offset = td->in_offsets [c->try_offset];
3912                 c->try_len = td->in_offsets [end_off] - c->try_offset;
3913                 end_off = c->handler_offset + c->handler_len;
3914                 c->handler_offset = td->in_offsets [c->handler_offset];
3915                 c->handler_len = td->in_offsets [end_off] - c->handler_offset;
3916                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3917                         c->data.filter_offset = td->in_offsets [c->data.filter_offset];
3918         }
3919         rtm->vt_stack_size = td->max_vt_sp;
3920         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3921         rtm->data_items = mono_domain_alloc0 (domain, td->n_data_items * sizeof (td->data_items [0]));
3922         memcpy (rtm->data_items, td->data_items, td->n_data_items * sizeof (td->data_items [0]));
3923
3924         /* Save debug info */
3925         interp_save_debug_info (rtm, header, td, line_numbers);
3926
3927         /* Create a MonoJitInfo for the interpreted method by creating the interpreter IR as the native code. */
3928         int jinfo_len = mono_jit_info_size (0, header->num_clauses, 0);
3929         MonoJitInfo *jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, jinfo_len);
3930         jinfo->is_interp = 1;
3931         rtm->jinfo = jinfo;
3932         mono_jit_info_init (jinfo, method, (guint8*)rtm->code, code_len, 0, header->num_clauses, 0);
3933         for (i = 0; i < jinfo->num_clauses; ++i) {
3934                 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3935                 MonoExceptionClause *c = rtm->clauses + i;
3936
3937                 ei->flags = c->flags;
3938                 ei->try_start = (guint8*)(rtm->code + c->try_offset);
3939                 ei->try_end = (guint8*)(rtm->code + c->try_offset + c->try_len);
3940                 ei->handler_start = (guint8*)(rtm->code + c->handler_offset);
3941                 ei->exvar_offset = rtm->exvar_offsets [i];
3942                 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3943                         ei->data.filter = (guint8*)(rtm->code + c->data.filter_offset);
3944                 } else if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3945                 } else {
3946                         ei->data.catch_class = c->data.catch_class;
3947                 }
3948         }
3949
3950         save_seq_points (td);
3951
3952         g_free (td->in_offsets);
3953         for (i = 0; i < header->code_size; ++i)
3954                 g_free (td->stack_state [i]);
3955         g_free (td->stack_state);
3956         g_free (td->stack_height);
3957         g_free (td->vt_stack_size);
3958         g_free (td->data_items);
3959         g_free (td->stack);
3960         g_hash_table_destroy (td->data_hash);
3961         g_free (td->clause_indexes);
3962         g_ptr_array_free (td->seq_points, TRUE);
3963         g_array_free (line_numbers, TRUE);
3964         g_ptr_array_free (td->relocs, TRUE);
3965         mono_mempool_destroy (td->mempool);
3966 }
3967
3968 static mono_mutex_t calc_section;
3969
3970 void
3971 mono_interp_transform_init (void)
3972 {
3973         mono_os_mutex_init_recursive(&calc_section);
3974 }
3975
3976 MonoException *
3977 mono_interp_transform_method (InterpMethod *imethod, ThreadContext *context)
3978 {
3979         int i, align, size, offset;
3980         MonoMethod *method = imethod->method;
3981         MonoImage *image = method->klass->image;
3982         MonoMethodHeader *header = mono_method_get_header (method);
3983         MonoMethodSignature *signature = mono_method_signature (method);
3984         register const unsigned char *ip, *end;
3985         const MonoOpcode *opcode;
3986         MonoMethod *m;
3987         MonoClass *class;
3988         unsigned char *is_bb_start;
3989         int in;
3990         MonoVTable *method_class_vt;
3991         int backwards;
3992         MonoGenericContext *generic_context = NULL;
3993         MonoDomain *domain = imethod->domain;
3994
3995         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3996         method_class_vt = mono_class_vtable (domain, imethod->method->klass);
3997         if (!method_class_vt->initialized) {
3998                 MonoError error;
3999                 jmp_buf env;
4000                 InterpFrame *last_env_frame = context->env_frame;
4001                 jmp_buf *old_env = context->current_env;
4002                 error_init (&error);
4003
4004                 if (setjmp(env)) {
4005                         MonoException *failed = context->env_frame->ex;
4006                         context->env_frame->ex = NULL;
4007                         context->env_frame = last_env_frame;
4008                         context->current_env = old_env;
4009                         return failed;
4010                 }
4011                 context->env_frame = context->current_frame;
4012                 context->current_env = &env;
4013                 mono_runtime_class_init_full (method_class_vt, &error);
4014                 if (!mono_error_ok (&error)) {
4015                         return mono_error_convert_to_exception (&error);
4016                 }
4017                 context->env_frame = last_env_frame;
4018                 context->current_env = old_env;
4019         }
4020
4021         MONO_PROFILER_RAISE (jit_begin, (method));
4022
4023         if (mono_method_signature (method)->is_inflated)
4024                 generic_context = mono_method_get_context (method);
4025         else {
4026                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
4027                 if (generic_container)
4028                         generic_context = &generic_container->context;
4029         }
4030
4031         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4032                 MonoMethod *nm = NULL;
4033                 mono_os_mutex_lock(&calc_section);
4034                 if (imethod->transformed) {
4035                         mono_os_mutex_unlock(&calc_section);
4036                         MONO_PROFILER_RAISE (jit_done, (method, imethod->jinfo));
4037                         return NULL;
4038                 }
4039
4040                 /* assumes all internal calls with an array this are built in... */
4041                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
4042                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
4043                         signature = mono_method_signature (nm);
4044                 } else {
4045                         const char *name = method->name;
4046                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4047                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4048                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4049                                         g_assert (mi);
4050                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
4051                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
4052                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4053                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
4054                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4055                                         nm = mono_marshal_get_delegate_begin_invoke (method);
4056                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4057                                         nm = mono_marshal_get_delegate_end_invoke (method);
4058                                 }
4059                         }
4060                         if (nm == NULL) {
4061                                 imethod->code = g_malloc(sizeof(short));
4062                                 imethod->code[0] = MINT_CALLRUN;
4063                         }
4064                 }
4065                 if (nm == NULL) {
4066                         imethod->stack_size = sizeof (stackval); /* for tracing */
4067                         imethod->alloca_size = imethod->stack_size;
4068                         imethod->transformed = TRUE;
4069                         mono_os_mutex_unlock(&calc_section);
4070                         MONO_PROFILER_RAISE (jit_done, (method, NULL));
4071                         return NULL;
4072                 }
4073                 method = nm;
4074                 header = mono_method_get_header (nm);
4075                 mono_os_mutex_unlock(&calc_section);
4076         } else if (method->klass == mono_defaults.array_class) {
4077                 if (!strcmp (method->name, "UnsafeMov") || !strcmp (method->name, "UnsafeLoad")) {
4078                         mono_os_mutex_lock (&calc_section);
4079                         if (!imethod->transformed) {
4080                                 imethod->code = g_malloc (sizeof (short));
4081                                 imethod->code[0] = MINT_CALLRUN;
4082                                 imethod->stack_size = sizeof (stackval); /* for tracing */
4083                                 imethod->alloca_size = imethod->stack_size;
4084                                 imethod->transformed = TRUE;
4085                         }
4086                         mono_os_mutex_unlock(&calc_section);
4087                         MONO_PROFILER_RAISE (jit_done, (method, NULL));
4088                         return NULL;
4089                 } else if (!strcmp (method->name, "UnsafeStore")) {
4090                         g_error ("TODO");
4091                 }
4092         }
4093         g_assert ((signature->param_count + signature->hasthis) < 1000);
4094         g_assert (header->max_stack < 10000);
4095         /* intern the strings in the method. */
4096         ip = header->code;
4097         end = ip + header->code_size;
4098
4099         is_bb_start = g_malloc0(header->code_size);
4100         is_bb_start [0] = 1;
4101         while (ip < end) {
4102                 in = *ip;
4103                 if (in == 0xfe) {
4104                         ip++;
4105                         in = *ip + 256;
4106                 }
4107                 else if (in == 0xf0) {
4108                         ip++;
4109                         in = *ip + MONO_CEE_MONO_ICALL;
4110                 }
4111                 opcode = &mono_opcodes [in];
4112                 switch (opcode->argument) {
4113                 case MonoInlineNone:
4114                         ++ip;
4115                         break;
4116                 case MonoInlineString:
4117                         if (method->wrapper_type == MONO_WRAPPER_NONE)
4118                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
4119                         ip += 5;
4120                         break;
4121                 case MonoInlineType:
4122                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
4123                                 class = mini_get_class (method, read32 (ip + 1), generic_context);
4124                                 mono_class_init (class);
4125                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
4126 #if 0
4127                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
4128                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
4129                                         mono_class_vtable (domain, class);
4130 #endif
4131                         }
4132                         ip += 5;
4133                         break;
4134                 case MonoInlineMethod:
4135                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
4136                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
4137                                 if (m == NULL) {
4138                                         g_free (is_bb_start);
4139                                         g_error ("FIXME: where to get method and class string?");
4140                                         return NULL;
4141                                         // return mono_get_exception_missing_method ();
4142                                 }
4143                                 mono_class_init (m->klass);
4144                                 if (!mono_class_is_interface (m->klass))
4145                                         mono_class_vtable (domain, m->klass);
4146                         }
4147                         ip += 5;
4148                         break;
4149                 case MonoInlineField:
4150                 case MonoInlineSig:
4151                 case MonoInlineI:
4152                 case MonoInlineTok:
4153                 case MonoShortInlineR:
4154                         ip += 5;
4155                         break;
4156                 case MonoInlineBrTarget:
4157                         offset = read32 (ip + 1);
4158                         ip += 5;
4159                         backwards = offset < 0;
4160                         offset += ip - header->code;
4161                         g_assert (offset >= 0 && offset < header->code_size);
4162                         is_bb_start [offset] |= backwards ? 2 : 1;
4163                         break;
4164                 case MonoShortInlineBrTarget:
4165                         offset = ((gint8 *)ip) [1];
4166                         ip += 2;
4167                         backwards = offset < 0;
4168                         offset += ip - header->code;
4169                         g_assert (offset >= 0 && offset < header->code_size);
4170                         is_bb_start [offset] |= backwards ? 2 : 1;
4171                         break;
4172                 case MonoInlineVar:
4173                         ip += 3;
4174                         break;
4175                 case MonoShortInlineVar:
4176                 case MonoShortInlineI:
4177                         ip += 2;
4178                         break;
4179                 case MonoInlineSwitch: {
4180                         guint32 n;
4181                         const unsigned char *next_ip;
4182                         ++ip;
4183                         n = read32 (ip);
4184                         ip += 4;
4185                         next_ip = ip + 4 * n;
4186                         for (i = 0; i < n; i++) {
4187                                 offset = read32 (ip);
4188                                 backwards = offset < 0;
4189                                 offset += next_ip - header->code;
4190                                 g_assert (offset >= 0 && offset < header->code_size);
4191                                 is_bb_start [offset] |= backwards ? 2 : 1;
4192                                 ip += 4;
4193                         }
4194                         break;
4195                 }
4196                 case MonoInlineR:
4197                 case MonoInlineI8:
4198                         ip += 9;
4199                         break;
4200                 default:
4201                         g_assert_not_reached ();
4202                 }
4203         }
4204         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
4205
4206         /* the rest needs to be locked so it is only done once */
4207         mono_os_mutex_lock(&calc_section);
4208         if (imethod->transformed) {
4209                 mono_os_mutex_unlock(&calc_section);
4210                 g_free (is_bb_start);
4211                 MONO_PROFILER_RAISE (jit_done, (method, imethod->jinfo));
4212                 return NULL;
4213         }
4214
4215         imethod->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
4216         imethod->stack_size = (sizeof (stackval)) * (header->max_stack + 2); /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
4217         imethod->stack_size = (imethod->stack_size + 7) & ~7;
4218         offset = 0;
4219         for (i = 0; i < header->num_locals; ++i) {
4220                 size = mono_type_size (header->locals [i], &align);
4221                 offset += align - 1;
4222                 offset &= ~(align - 1);
4223                 imethod->local_offsets [i] = offset;
4224                 offset += size;
4225         }
4226         offset = (offset + 7) & ~7;
4227
4228         imethod->exvar_offsets = g_malloc (header->num_clauses * sizeof (guint32));
4229         for (i = 0; i < header->num_clauses; i++) {
4230                 offset += sizeof (MonoObject*);
4231                 imethod->exvar_offsets [i] = offset;
4232         }
4233         offset = (offset + 7) & ~7;
4234
4235         imethod->locals_size = offset;
4236         g_assert (imethod->locals_size < 65536);
4237         offset = 0;
4238         imethod->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
4239
4240         if (signature->hasthis) {
4241                 g_assert (!signature->pinvoke);
4242                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
4243                 offset += align - 1;
4244                 offset &= ~(align - 1);
4245                 imethod->arg_offsets [0] = offset;
4246                 offset += size;
4247         }
4248
4249         for (i = 0; i < signature->param_count; ++i) {
4250                 if (signature->pinvoke) {
4251                         guint32 dummy;
4252                         size = mono_type_native_stack_size (signature->params [i], &dummy);
4253                         align = 8;
4254                 }
4255                 else
4256                         size = mono_type_stack_size (signature->params [i], &align);
4257                 offset += align - 1;
4258                 offset &= ~(align - 1);
4259                 imethod->arg_offsets [i + !!signature->hasthis] = offset;
4260                 offset += size;
4261         }
4262         offset = (offset + 7) & ~7;
4263         imethod->args_size = offset;
4264         g_assert (imethod->args_size < 10000);
4265
4266         generate (method, imethod, is_bb_start, generic_context);
4267
4268         g_free (is_bb_start);
4269
4270         // FIXME: Add a different callback ?
4271         MONO_PROFILER_RAISE (jit_done, (method, imethod->jinfo));
4272         imethod->transformed = TRUE;
4273         mono_os_mutex_unlock(&calc_section);
4274
4275         return NULL;
4276 }
4277