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         RuntimeMethod *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_runtime_method (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_runtime_method (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 (RuntimeMethod *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         RuntimeMethod *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, RuntimeMethod *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 td;
1360         int generating_code = 1;
1361         GArray *line_numbers;
1362         MonoDebugMethodInfo *minfo;
1363         MonoBitSet *seq_point_locs = NULL;
1364         MonoBitSet *seq_point_set_locs = NULL;
1365         gboolean sym_seq_points = FALSE;
1366         InterpBasicBlock *bb_exit = NULL;
1367         static gboolean verbose_method_inited;
1368         static char* verbose_method_name;
1369
1370         if (!verbose_method_inited) {
1371                 verbose_method_name = getenv ("MONO_VERBOSE_METHOD");
1372                 verbose_method_inited = TRUE;
1373         }
1374
1375         memset (&td, 0, sizeof(td));
1376         td.method = method;
1377         td.rtm = rtm;
1378         td.is_bb_start = is_bb_start;
1379         td.il_code = header->code;
1380         td.code_size = header->code_size;
1381         td.header = header;
1382         td.max_code_size = td.code_size;
1383         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
1384         td.new_code_end = td.new_code + td.max_code_size;
1385         td.mempool = mono_mempool_new ();
1386         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
1387         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
1388         td.stack_height = g_malloc(header->code_size * sizeof(int));
1389         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
1390         td.n_data_items = 0;
1391         td.max_data_items = 0;
1392         td.data_items = NULL;
1393         td.data_hash = g_hash_table_new (NULL, NULL);
1394         td.clause_indexes = g_malloc (header->code_size * sizeof (int));
1395         td.gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
1396         td.seq_points = g_ptr_array_new ();
1397         td.relocs = g_ptr_array_new ();
1398         td.verbose_level = mono_interp_traceopt;
1399         rtm->data_items = td.data_items;
1400         for (i = 0; i < header->code_size; i++) {
1401                 td.stack_height [i] = -1;
1402                 td.clause_indexes [i] = -1;
1403         }
1404
1405         if (verbose_method_name) {
1406                 const char *name = verbose_method_name;
1407
1408                 if ((strchr (name, '.') > name) || strchr (name, ':')) {
1409                         MonoMethodDesc *desc;
1410
1411                         desc = mono_method_desc_new (name, TRUE);
1412                         if (mono_method_desc_full_match (desc, method)) {
1413                                 td.verbose_level = 4;
1414                         }
1415                         mono_method_desc_free (desc);
1416                 } else {
1417                         if (strcmp (method->name, name) == 0)
1418                                 td.verbose_level = 4;
1419                 }
1420         }
1421
1422         if (td.gen_sdb_seq_points) {
1423                 get_basic_blocks (&td);
1424
1425                 minfo = mono_debug_lookup_method (method);
1426
1427                 if (minfo) {
1428                         MonoSymSeqPoint *sps;
1429                         int i, n_il_offsets;
1430
1431                         mono_debug_get_seq_points (minfo, NULL, NULL, NULL, &sps, &n_il_offsets);
1432                         // FIXME: Free
1433                         seq_point_locs = mono_bitset_mem_new (mono_mempool_alloc0 (td.mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
1434                         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);
1435                         sym_seq_points = TRUE;
1436
1437                         for (i = 0; i < n_il_offsets; ++i) {
1438                                 if (sps [i].il_offset < header->code_size)
1439                                         mono_bitset_set_fast (seq_point_locs, sps [i].il_offset);
1440                         }
1441                         g_free (sps);
1442                 } else if (!method->wrapper_type && !method->dynamic && mono_debug_image_has_debug_info (method->klass->image)) {
1443                         /* Methods without line number info like auto-generated property accessors */
1444                         seq_point_locs = mono_bitset_new (header->code_size, 0);
1445                         seq_point_set_locs = mono_bitset_new (header->code_size, 0);
1446                         sym_seq_points = TRUE;
1447                 }
1448         }
1449
1450         td.new_ip = td.new_code;
1451         td.last_new_ip = NULL;
1452
1453         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
1454         td.sp = td.stack;
1455         td.max_stack_height = 0;
1456
1457         line_numbers = g_array_new (FALSE, TRUE, sizeof (MonoDebugLineNumberEntry));
1458
1459         for (i = 0; i < header->num_clauses; i++) {
1460                 MonoExceptionClause *c = header->clauses + i;
1461                 td.stack_height [c->handler_offset] = 0;
1462                 td.vt_stack_size [c->handler_offset] = 0;
1463                 td.is_bb_start [c->handler_offset] = 1;
1464
1465                 td.stack_height [c->handler_offset] = 1;
1466                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
1467                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
1468                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
1469
1470                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
1471                         td.stack_height [c->data.filter_offset] = 0;
1472                         td.vt_stack_size [c->data.filter_offset] = 0;
1473                         td.is_bb_start [c->data.filter_offset] = 1;
1474
1475                         td.stack_height [c->data.filter_offset] = 1;
1476                         td.stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
1477                         td.stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
1478                         td.stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
1479                 }
1480
1481                 for (int j = c->handler_offset; j < c->handler_offset + c->handler_len; ++j) {
1482                         if (td.clause_indexes [j] == -1)
1483                                 td.clause_indexes [j] = i;
1484                 }
1485         }
1486
1487         td.ip = header->code;
1488         end = td.ip + header->code_size;
1489
1490         if (td.verbose_level) {
1491                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
1492                 char *name = mono_method_full_name (method, TRUE);
1493                 g_print ("Method %s, original code:\n", name);
1494                 g_print ("%s\n", tmp);
1495                 g_free (tmp);
1496                 g_free (name);
1497         }
1498
1499         if (signature->hasthis)
1500                 store_inarg (&td, 0);
1501         for (i = 0; i < signature->param_count; i++)
1502                 store_inarg (&td, i + !!signature->hasthis);
1503
1504         body_start_offset = td.new_ip - td.new_code;
1505
1506         for (i = 0; i < header->num_locals; i++) {
1507                 int mt = mint_type(header->locals [i]);
1508                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1509                         ADD_CODE(&td, MINT_INITLOCALS);
1510                         break;
1511                 }
1512         }
1513
1514         if (sym_seq_points) {
1515                 InterpBasicBlock *cbb = td.offset_to_bb [0];
1516                 g_assert (cbb);
1517                 emit_seq_point (&td, METHOD_ENTRY_IL_OFFSET, cbb, FALSE);
1518         }
1519
1520         while (td.ip < end) {
1521                 int in_offset;
1522
1523                 g_assert (td.sp >= td.stack);
1524                 g_assert (td.vt_sp < 0x10000000);
1525                 in_offset = td.ip - header->code;
1526                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
1527                 new_in_start_offset = td.new_ip - td.new_code;
1528                 td.in_start = td.ip;
1529
1530                 MonoDebugLineNumberEntry lne;
1531                 lne.native_offset = (guint8*)td.new_ip - (guint8*)td.new_code;
1532                 lne.il_offset = in_offset;
1533                 g_array_append_val (line_numbers, lne);
1534
1535                 if (td.stack_height [in_offset] >= 0) {
1536                         g_assert (is_bb_start [in_offset]);
1537                         if (td.stack_height [in_offset] > 0)
1538                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1539                         td.sp = td.stack + td.stack_height [in_offset];
1540                         td.vt_sp = td.vt_stack_size [in_offset];
1541                 }
1542                 if (is_bb_start [in_offset]) {
1543                         generating_code = 1;
1544                 }
1545                 if (!generating_code) {
1546                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1547                                 ++td.ip;
1548                         continue;
1549                 }
1550                 if (td.verbose_level > 1) {
1551                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1552                                 td.ip - td.il_code,
1553                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1554                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1555                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1556                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1557                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1558                                 (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) : "",
1559                                 td.vt_sp, td.max_vt_sp);
1560                 }
1561
1562                 if (sym_seq_points && mono_bitset_test_fast (seq_point_locs, td.ip - header->code)) {
1563                         InterpBasicBlock *cbb = td.offset_to_bb [td.ip - header->code];
1564                         g_assert (cbb);
1565
1566                         /*
1567                          * Make methods interruptable at the beginning, and at the targets of
1568                          * backward branches.
1569                          */
1570                         if (in_offset == 0 || g_slist_length (cbb->preds) > 1)
1571                                 ADD_CODE (&td, MINT_SDB_INTR_LOC);
1572
1573                         emit_seq_point (&td, in_offset, cbb, FALSE);
1574
1575                         mono_bitset_set_fast (seq_point_set_locs, td.ip - header->code);
1576                 }
1577
1578                 if (sym_seq_points)
1579                         bb_exit = td.offset_to_bb [td.ip - header->code];
1580
1581                 switch (*td.ip) {
1582                 case CEE_NOP:
1583                         /* lose it */
1584                         ++td.ip;
1585                         break;
1586                 case CEE_BREAK:
1587                         SIMPLE_OP(td, MINT_BREAK);
1588                         break;
1589                 case CEE_LDARG_0:
1590                 case CEE_LDARG_1:
1591                 case CEE_LDARG_2:
1592                 case CEE_LDARG_3:
1593                         load_arg (&td, *td.ip - CEE_LDARG_0);
1594                         ++td.ip;
1595                         break;
1596                 case CEE_LDLOC_0:
1597                 case CEE_LDLOC_1:
1598                 case CEE_LDLOC_2:
1599                 case CEE_LDLOC_3:
1600                         load_local (&td, *td.ip - CEE_LDLOC_0);
1601                         ++td.ip;
1602                         break;
1603                 case CEE_STLOC_0:
1604                 case CEE_STLOC_1:
1605                 case CEE_STLOC_2:
1606                 case CEE_STLOC_3:
1607                         store_local (&td, *td.ip - CEE_STLOC_0);
1608                         ++td.ip;
1609                         break;
1610                 case CEE_LDARG_S:
1611                         load_arg (&td, ((guint8 *)td.ip)[1]);
1612                         td.ip += 2;
1613                         break;
1614                 case CEE_LDARGA_S: {
1615                         /* NOTE: n includes this */
1616                         int n = ((guint8 *) td.ip) [1];
1617                         ADD_CODE (&td, MINT_LDARGA);
1618                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1619                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1620                         td.ip += 2;
1621                         break;
1622                 }
1623                 case CEE_STARG_S:
1624                         store_arg (&td, ((guint8 *)td.ip)[1]);
1625                         td.ip += 2;
1626                         break;
1627                 case CEE_LDLOC_S:
1628                         load_local (&td, ((guint8 *)td.ip)[1]);
1629                         td.ip += 2;
1630                         break;
1631                 case CEE_LDLOCA_S:
1632                         ADD_CODE(&td, MINT_LDLOCA_S);
1633                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1634                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1635                         td.ip += 2;
1636                         break;
1637                 case CEE_STLOC_S:
1638                         store_local (&td, ((guint8 *)td.ip)[1]);
1639                         td.ip += 2;
1640                         break;
1641                 case CEE_LDNULL:
1642                         SIMPLE_OP(td, MINT_LDNULL);
1643                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1644                         break;
1645                 case CEE_LDC_I4_M1:
1646                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1647                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1648                         break;
1649                 case CEE_LDC_I4_0:
1650                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1651                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1652                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1653                                 td.ip += 2;
1654                         } else {
1655                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1656                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1657                         }
1658                         break;
1659                 case CEE_LDC_I4_1:
1660                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1661                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1662                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1663                                 td.ip += 2;
1664                         } else {
1665                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1666                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1667                         }
1668                         break;
1669                 case CEE_LDC_I4_2:
1670                 case CEE_LDC_I4_3:
1671                 case CEE_LDC_I4_4:
1672                 case CEE_LDC_I4_5:
1673                 case CEE_LDC_I4_6:
1674                 case CEE_LDC_I4_7:
1675                 case CEE_LDC_I4_8:
1676                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1677                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1678                         break;
1679                 case CEE_LDC_I4_S:
1680                         ADD_CODE(&td, MINT_LDC_I4_S);
1681                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1682                         td.ip += 2;
1683                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1684                         break;
1685                 case CEE_LDC_I4:
1686                         i32 = read32 (td.ip + 1);
1687                         ADD_CODE(&td, MINT_LDC_I4);
1688                         WRITE32(&td, &i32);
1689                         td.ip += 5;
1690                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1691                         break;
1692                 case CEE_LDC_I8: {
1693                         gint64 val = read64 (td.ip + 1);
1694                         ADD_CODE(&td, MINT_LDC_I8);
1695                         WRITE64(&td, &val);
1696                         td.ip += 9;
1697                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1698                         break;
1699                 }
1700                 case CEE_LDC_R4: {
1701                         float val;
1702                         readr4 (td.ip + 1, &val);
1703                         ADD_CODE(&td, MINT_LDC_R4);
1704                         WRITE32(&td, &val);
1705                         td.ip += 5;
1706                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1707                         break;
1708                 }
1709                 case CEE_LDC_R8: {
1710                         double val;
1711                         readr8 (td.ip + 1, &val);
1712                         ADD_CODE(&td, MINT_LDC_R8);
1713                         WRITE64(&td, &val);
1714                         td.ip += 9;
1715                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1716                         break;
1717                 }
1718                 case CEE_DUP: {
1719                         int type = td.sp [-1].type;
1720                         MonoClass *klass = td.sp [-1].klass;
1721                         if (td.sp [-1].type == STACK_TYPE_VT) {
1722                                 gint32 size = mono_class_value_size (klass, NULL);
1723                                 PUSH_VT(&td, size);
1724                                 ADD_CODE(&td, MINT_DUP_VT);
1725                                 WRITE32(&td, &size);
1726                                 td.ip ++;
1727                         } else
1728                                 SIMPLE_OP(td, MINT_DUP);
1729                         PUSH_TYPE(&td, type, klass);
1730                         break;
1731                 }
1732                 case CEE_POP:
1733                         CHECK_STACK(&td, 1);
1734                         SIMPLE_OP(td, MINT_POP);
1735                         ADD_CODE (&td, 0);
1736                         if (td.sp [-1].type == STACK_TYPE_VT) {
1737                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1738                                 size = (size + 7) & ~7;
1739                                 ADD_CODE(&td, MINT_VTRESULT);
1740                                 ADD_CODE(&td, 0);
1741                                 WRITE32(&td, &size);
1742                                 td.vt_sp -= size;
1743                         }
1744                         --td.sp;
1745                         break;
1746                 case CEE_JMP: {
1747                         MonoMethod *m;
1748                         if (td.sp > td.stack)
1749                                 g_warning ("CEE_JMP: stack must be empty");
1750                         token = read32 (td.ip + 1);
1751                         m = mono_get_method_full (image, token, NULL, generic_context);
1752                         ADD_CODE (&td, MINT_JMP);
1753                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1754                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1755                         td.ip += 5;
1756                         break;
1757                 }
1758                 case CEE_CALLVIRT: /* Fall through */
1759                 case CEE_CALLI:    /* Fall through */
1760                 case CEE_CALL: {
1761                         gboolean need_seq_point = FALSE;
1762
1763                         if (sym_seq_points && !mono_bitset_test_fast (seq_point_locs, td.ip + 5 - header->code))
1764                                 need_seq_point = TRUE;
1765
1766                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1767
1768                         if (need_seq_point) {
1769                                 InterpBasicBlock *cbb = td.offset_to_bb [td.ip - header->code];
1770                                 g_assert (cbb);
1771
1772                                 emit_seq_point (&td, td.ip - header->code, cbb, TRUE);
1773                         }
1774
1775                         constrained_class = NULL;
1776                         readonly = FALSE;
1777                         break;
1778                 }
1779                 case CEE_RET: {
1780                         int vt_size = 0;
1781                         if (signature->ret->type != MONO_TYPE_VOID) {
1782                                 --td.sp;
1783                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1784                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1785                                         vt_size = mono_class_value_size (klass, NULL);
1786                                         vt_size = (vt_size + 7) & ~7;
1787                                 }
1788                         }
1789                         if (td.sp > td.stack)
1790                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1791                         if (td.vt_sp != vt_size)
1792                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1793
1794                         if (sym_seq_points) {
1795                                 InterpBasicBlock *cbb = td.offset_to_bb [td.ip - header->code];
1796                                 g_assert (cbb);
1797                                 emit_seq_point (&td, METHOD_EXIT_IL_OFFSET, bb_exit, FALSE);
1798                         }
1799
1800                         if (vt_size == 0)
1801                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1802                         else {
1803                                 ADD_CODE(&td, MINT_RET_VT);
1804                                 WRITE32(&td, &vt_size);
1805                                 ++td.ip;
1806                         }
1807                         generating_code = 0;
1808                         break;
1809                 }
1810                 case CEE_BR:
1811                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1812                         td.ip += 5;
1813                         generating_code = 0;
1814                         break;
1815                 case CEE_BR_S:
1816                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1817                         td.ip += 2;
1818                         generating_code = 0;
1819                         break;
1820                 case CEE_BRFALSE:
1821                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1822                         td.ip += 5;
1823                         break;
1824                 case CEE_BRFALSE_S:
1825                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1826                         td.ip += 2;
1827                         break;
1828                 case CEE_BRTRUE:
1829                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1830                         td.ip += 5;
1831                         break;
1832                 case CEE_BRTRUE_S:
1833                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1834                         td.ip += 2;
1835                         break;
1836                 case CEE_BEQ:
1837                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1838                         td.ip += 5;
1839                         break;
1840                 case CEE_BEQ_S:
1841                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1842                         td.ip += 2;
1843                         break;
1844                 case CEE_BGE:
1845                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1846                         td.ip += 5;
1847                         break;
1848                 case CEE_BGE_S:
1849                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1850                         td.ip += 2;
1851                         break;
1852                 case CEE_BGT:
1853                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1854                         td.ip += 5;
1855                         break;
1856                 case CEE_BGT_S:
1857                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1858                         td.ip += 2;
1859                         break;
1860                 case CEE_BLT:
1861                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1862                         td.ip += 5;
1863                         break;
1864                 case CEE_BLT_S:
1865                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1866                         td.ip += 2;
1867                         break;
1868                 case CEE_BLE:
1869                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1870                         td.ip += 5;
1871                         break;
1872                 case CEE_BLE_S:
1873                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1874                         td.ip += 2;
1875                         break;
1876                 case CEE_BNE_UN:
1877                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1878                         td.ip += 5;
1879                         break;
1880                 case CEE_BNE_UN_S:
1881                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1882                         td.ip += 2;
1883                         break;
1884                 case CEE_BGE_UN:
1885                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1886                         td.ip += 5;
1887                         break;
1888                 case CEE_BGE_UN_S:
1889                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1890                         td.ip += 2;
1891                         break;
1892                 case CEE_BGT_UN:
1893                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1894                         td.ip += 5;
1895                         break;
1896                 case CEE_BGT_UN_S:
1897                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1898                         td.ip += 2;
1899                         break;
1900                 case CEE_BLE_UN:
1901                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1902                         td.ip += 5;
1903                         break;
1904                 case CEE_BLE_UN_S:
1905                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1906                         td.ip += 2;
1907                         break;
1908                 case CEE_BLT_UN:
1909                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1910                         td.ip += 5;
1911                         break;
1912                 case CEE_BLT_UN_S:
1913                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1914                         td.ip += 2;
1915                         break;
1916                 case CEE_SWITCH: {
1917                         guint32 n;
1918                         const unsigned char *next_ip;
1919                         ++td.ip;
1920                         n = read32 (td.ip);
1921                         ADD_CODE (&td, MINT_SWITCH);
1922                         WRITE32 (&td, &n);
1923                         td.ip += 4;
1924                         next_ip = td.ip + n * 4;
1925                         --td.sp;
1926                         int stack_height = td.sp - td.stack;
1927                         for (i = 0; i < n; i++) {
1928                                 offset = read32 (td.ip);
1929                                 target = next_ip - td.il_code + offset;
1930                                 if (offset < 0) {
1931 #if DEBUG_INTERP
1932                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1933                                                 g_warning ("SWITCH with back branch and non-empty stack");
1934 #endif
1935                                         target = td.in_offsets [target] - (td.new_ip - td.new_code);
1936                                 } else {
1937                                         td.stack_height [target] = stack_height;
1938                                         td.vt_stack_size [target] = td.vt_sp;
1939                                         if (stack_height > 0)
1940                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1941
1942                                         Reloc *reloc = mono_mempool_alloc0 (td.mempool, sizeof (Reloc));
1943                                         reloc->type = RELOC_SWITCH;
1944                                         reloc->offset = td.new_ip - td.new_code;
1945                                         reloc->target = target;
1946                                         g_ptr_array_add (td.relocs, reloc);
1947                                         target = 0xffff;
1948                                 }
1949                                 WRITE32 (&td, &target);
1950                                 td.ip += 4;
1951                         }
1952                         break;
1953                 }
1954                 case CEE_LDIND_I1:
1955                         CHECK_STACK (&td, 1);
1956                         SIMPLE_OP (td, MINT_LDIND_I1);
1957                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1958                         BARRIER_IF_VOLATILE (td);
1959                         break;
1960                 case CEE_LDIND_U1:
1961                         CHECK_STACK (&td, 1);
1962                         SIMPLE_OP (td, MINT_LDIND_U1);
1963                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1964                         BARRIER_IF_VOLATILE (td);
1965                         break;
1966                 case CEE_LDIND_I2:
1967                         CHECK_STACK (&td, 1);
1968                         SIMPLE_OP (td, MINT_LDIND_I2);
1969                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1970                         BARRIER_IF_VOLATILE (td);
1971                         break;
1972                 case CEE_LDIND_U2:
1973                         CHECK_STACK (&td, 1);
1974                         SIMPLE_OP (td, MINT_LDIND_U2);
1975                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1976                         BARRIER_IF_VOLATILE (td);
1977                         break;
1978                 case CEE_LDIND_I4:
1979                         CHECK_STACK (&td, 1);
1980                         SIMPLE_OP (td, MINT_LDIND_I4);
1981                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1982                         BARRIER_IF_VOLATILE (td);
1983                         break;
1984                 case CEE_LDIND_U4:
1985                         CHECK_STACK (&td, 1);
1986                         SIMPLE_OP (td, MINT_LDIND_U4);
1987                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1988                         BARRIER_IF_VOLATILE (td);
1989                         break;
1990                 case CEE_LDIND_I8:
1991                         CHECK_STACK (&td, 1);
1992                         SIMPLE_OP (td, MINT_LDIND_I8);
1993                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1994                         BARRIER_IF_VOLATILE (td);
1995                         break;
1996                 case CEE_LDIND_I:
1997                         CHECK_STACK (&td, 1);
1998                         SIMPLE_OP (td, MINT_LDIND_I);
1999                         ADD_CODE (&td, 0);
2000                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2001                         BARRIER_IF_VOLATILE (td);
2002                         break;
2003                 case CEE_LDIND_R4:
2004                         CHECK_STACK (&td, 1);
2005                         SIMPLE_OP (td, MINT_LDIND_R4);
2006                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2007                         BARRIER_IF_VOLATILE (td);
2008                         break;
2009                 case CEE_LDIND_R8:
2010                         CHECK_STACK (&td, 1);
2011                         SIMPLE_OP (td, MINT_LDIND_R8);
2012                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2013                         BARRIER_IF_VOLATILE (td);
2014                         break;
2015                 case CEE_LDIND_REF:
2016                         CHECK_STACK (&td, 1);
2017                         SIMPLE_OP (td, MINT_LDIND_REF);
2018                         BARRIER_IF_VOLATILE (td);
2019                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2020                         break;
2021                 case CEE_STIND_REF:
2022                         CHECK_STACK (&td, 2);
2023                         BARRIER_IF_VOLATILE (td);
2024                         SIMPLE_OP (td, MINT_STIND_REF);
2025                         td.sp -= 2;
2026                         break;
2027                 case CEE_STIND_I1:
2028                         CHECK_STACK (&td, 2);
2029                         BARRIER_IF_VOLATILE (td);
2030                         SIMPLE_OP (td, MINT_STIND_I1);
2031                         td.sp -= 2;
2032                         break;
2033                 case CEE_STIND_I2:
2034                         CHECK_STACK (&td, 2);
2035                         BARRIER_IF_VOLATILE (td);
2036                         SIMPLE_OP (td, MINT_STIND_I2);
2037                         td.sp -= 2;
2038                         break;
2039                 case CEE_STIND_I4:
2040                         CHECK_STACK (&td, 2);
2041                         BARRIER_IF_VOLATILE (td);
2042                         SIMPLE_OP (td, MINT_STIND_I4);
2043                         td.sp -= 2;
2044                         break;
2045                 case CEE_STIND_I:
2046                         CHECK_STACK (&td, 2);
2047                         BARRIER_IF_VOLATILE (td);
2048                         SIMPLE_OP (td, MINT_STIND_I);
2049                         td.sp -= 2;
2050                         break;
2051                 case CEE_STIND_I8:
2052                         CHECK_STACK (&td, 2);
2053                         BARRIER_IF_VOLATILE (td);
2054                         SIMPLE_OP (td, MINT_STIND_I8);
2055                         td.sp -= 2;
2056                         break;
2057                 case CEE_STIND_R4:
2058                         CHECK_STACK (&td, 2);
2059                         BARRIER_IF_VOLATILE (td);
2060                         SIMPLE_OP (td, MINT_STIND_R4);
2061                         td.sp -= 2;
2062                         break;
2063                 case CEE_STIND_R8:
2064                         CHECK_STACK (&td, 2);
2065                         BARRIER_IF_VOLATILE (td);
2066                         SIMPLE_OP (td, MINT_STIND_R8);
2067                         td.sp -= 2;
2068                         break;
2069                 case CEE_ADD:
2070                         binary_arith_op(&td, MINT_ADD_I4);
2071                         ++td.ip;
2072                         break;
2073                 case CEE_SUB:
2074                         binary_arith_op(&td, MINT_SUB_I4);
2075                         ++td.ip;
2076                         break;
2077                 case CEE_MUL:
2078                         binary_arith_op(&td, MINT_MUL_I4);
2079                         ++td.ip;
2080                         break;
2081                 case CEE_DIV:
2082                         binary_arith_op(&td, MINT_DIV_I4);
2083                         ++td.ip;
2084                         break;
2085                 case CEE_DIV_UN:
2086                         binary_arith_op(&td, MINT_DIV_UN_I4);
2087                         ++td.ip;
2088                         break;
2089                 case CEE_REM:
2090                         binary_arith_op (&td, MINT_REM_I4);
2091                         ++td.ip;
2092                         break;
2093                 case CEE_REM_UN:
2094                         binary_arith_op (&td, MINT_REM_UN_I4);
2095                         ++td.ip;
2096                         break;
2097                 case CEE_AND:
2098                         binary_arith_op (&td, MINT_AND_I4);
2099                         ++td.ip;
2100                         break;
2101                 case CEE_OR:
2102                         binary_arith_op (&td, MINT_OR_I4);
2103                         ++td.ip;
2104                         break;
2105                 case CEE_XOR:
2106                         binary_arith_op (&td, MINT_XOR_I4);
2107                         ++td.ip;
2108                         break;
2109                 case CEE_SHL:
2110                         shift_op (&td, MINT_SHL_I4);
2111                         ++td.ip;
2112                         break;
2113                 case CEE_SHR:
2114                         shift_op (&td, MINT_SHR_I4);
2115                         ++td.ip;
2116                         break;
2117                 case CEE_SHR_UN:
2118                         shift_op (&td, MINT_SHR_UN_I4);
2119                         ++td.ip;
2120                         break;
2121                 case CEE_NEG:
2122                         unary_arith_op (&td, MINT_NEG_I4);
2123                         ++td.ip;
2124                         break;
2125                 case CEE_NOT:
2126                         unary_arith_op (&td, MINT_NOT_I4);
2127                         ++td.ip;
2128                         break;
2129                 case CEE_CONV_U1:
2130                         CHECK_STACK (&td, 1);
2131                         switch (td.sp [-1].type) {
2132                         case STACK_TYPE_R8:
2133                                 ADD_CODE(&td, MINT_CONV_U1_R8);
2134                                 break;
2135                         case STACK_TYPE_I4:
2136                                 ADD_CODE(&td, MINT_CONV_U1_I4);
2137                                 break;
2138                         case STACK_TYPE_I8:
2139                                 ADD_CODE(&td, MINT_CONV_U1_I8);
2140                                 break;
2141                         default:
2142                                 g_assert_not_reached ();
2143                         }
2144                         ++td.ip;
2145                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2146                         break;
2147                 case CEE_CONV_I1:
2148                         CHECK_STACK (&td, 1);
2149                         switch (td.sp [-1].type) {
2150                         case STACK_TYPE_R8:
2151                                 ADD_CODE(&td, MINT_CONV_I1_R8);
2152                                 break;
2153                         case STACK_TYPE_I4:
2154                                 ADD_CODE(&td, MINT_CONV_I1_I4);
2155                                 break;
2156                         case STACK_TYPE_I8:
2157                                 ADD_CODE(&td, MINT_CONV_I1_I8);
2158                                 break;
2159                         default:
2160                                 g_assert_not_reached ();
2161                         }
2162                         ++td.ip;
2163                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2164                         break;
2165                 case CEE_CONV_U2:
2166                         CHECK_STACK (&td, 1);
2167                         switch (td.sp [-1].type) {
2168                         case STACK_TYPE_R8:
2169                                 ADD_CODE(&td, MINT_CONV_U2_R8);
2170                                 break;
2171                         case STACK_TYPE_I4:
2172                                 ADD_CODE(&td, MINT_CONV_U2_I4);
2173                                 break;
2174                         case STACK_TYPE_I8:
2175                                 ADD_CODE(&td, MINT_CONV_U2_I8);
2176                                 break;
2177                         default:
2178                                 g_assert_not_reached ();
2179                         }
2180                         ++td.ip;
2181                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2182                         break;
2183                 case CEE_CONV_I2:
2184                         CHECK_STACK (&td, 1);
2185                         switch (td.sp [-1].type) {
2186                         case STACK_TYPE_R8:
2187                                 ADD_CODE(&td, MINT_CONV_I2_R8);
2188                                 break;
2189                         case STACK_TYPE_I4:
2190                                 ADD_CODE(&td, MINT_CONV_I2_I4);
2191                                 break;
2192                         case STACK_TYPE_I8:
2193                                 ADD_CODE(&td, MINT_CONV_I2_I8);
2194                                 break;
2195                         default:
2196                                 g_assert_not_reached ();
2197                         }
2198                         ++td.ip;
2199                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2200                         break;
2201                 case CEE_CONV_U:
2202                         CHECK_STACK (&td, 1);
2203                         switch (td.sp [-1].type) {
2204                         case STACK_TYPE_R8:
2205 #if SIZEOF_VOID_P == 4
2206                                 ADD_CODE(&td, MINT_CONV_U4_R8);
2207 #else
2208                                 ADD_CODE(&td, MINT_CONV_U8_R8);
2209 #endif
2210                                 break;
2211                         case STACK_TYPE_I4:
2212 #if SIZEOF_VOID_P == 8
2213                                 ADD_CODE(&td, MINT_CONV_U8_I4);
2214 #endif
2215                                 break;
2216                         case STACK_TYPE_I8:
2217 #if SIZEOF_VOID_P == 4
2218                                 ADD_CODE(&td, MINT_CONV_U4_I8);
2219 #endif
2220                                 break;
2221                         case STACK_TYPE_MP:
2222                                 break;
2223                         default:
2224                                 g_assert_not_reached ();
2225                         }
2226                         ++td.ip;
2227                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2228                         break;
2229                 case CEE_CONV_I:
2230                         CHECK_STACK (&td, 1);
2231                         switch (td.sp [-1].type) {
2232                         case STACK_TYPE_R8:
2233 #if SIZEOF_VOID_P == 8
2234                                 ADD_CODE(&td, MINT_CONV_I8_R8);
2235 #else
2236                                 ADD_CODE(&td, MINT_CONV_I4_R8);
2237 #endif
2238                                 break;
2239                         case STACK_TYPE_I4:
2240 #if SIZEOF_VOID_P == 8
2241                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2242 #endif
2243                                 break;
2244                         case STACK_TYPE_O:
2245                                 break;
2246                         case STACK_TYPE_MP:
2247                                 break;
2248                         case STACK_TYPE_I8:
2249 #if SIZEOF_VOID_P == 4
2250                                 ADD_CODE(&td, MINT_CONV_I4_I8);
2251 #endif
2252                                 break;
2253                         default:
2254                                 g_assert_not_reached ();
2255                         }
2256                         ++td.ip;
2257                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2258                         break;
2259                 case CEE_CONV_U4:
2260                         CHECK_STACK (&td, 1);
2261                         switch (td.sp [-1].type) {
2262                         case STACK_TYPE_R8:
2263                                 ADD_CODE(&td, MINT_CONV_U4_R8);
2264                                 break;
2265                         case STACK_TYPE_I4:
2266                                 break;
2267                         case STACK_TYPE_I8:
2268                                 ADD_CODE(&td, MINT_CONV_U4_I8);
2269                                 break;
2270                         case STACK_TYPE_MP:
2271 #if SIZEOF_VOID_P == 8
2272                                 ADD_CODE(&td, MINT_CONV_U4_I8);
2273 #endif
2274                                 break;
2275                         default:
2276                                 g_assert_not_reached ();
2277                         }
2278                         ++td.ip;
2279                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2280                         break;
2281                 case CEE_CONV_I4:
2282                         CHECK_STACK (&td, 1);
2283                         switch (td.sp [-1].type) {
2284                         case STACK_TYPE_R8:
2285                                 ADD_CODE(&td, MINT_CONV_I4_R8);
2286                                 break;
2287                         case STACK_TYPE_I4:
2288                                 break;
2289                         case STACK_TYPE_I8:
2290                                 ADD_CODE(&td, MINT_CONV_I4_I8);
2291                                 break;
2292                         case STACK_TYPE_MP:
2293 #if SIZEOF_VOID_P == 8
2294                                 ADD_CODE(&td, MINT_CONV_I4_I8);
2295 #endif
2296                                 break;
2297                         default:
2298                                 g_assert_not_reached ();
2299                         }
2300                         ++td.ip;
2301                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2302                         break;
2303                 case CEE_CONV_I8:
2304                         CHECK_STACK (&td, 1);
2305                         switch (td.sp [-1].type) {
2306                         case STACK_TYPE_R8:
2307                                 ADD_CODE(&td, MINT_CONV_I8_R8);
2308                                 break;
2309                         case STACK_TYPE_I4:
2310                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2311                                 break;
2312                         case STACK_TYPE_I8:
2313                                 break;
2314                         case STACK_TYPE_MP:
2315 #if SIZEOF_VOID_P == 4
2316                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2317 #endif
2318                                 break;
2319                         default:
2320                                 g_assert_not_reached ();
2321                         }
2322                         ++td.ip;
2323                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2324                         break;
2325                 case CEE_CONV_R4:
2326                         CHECK_STACK (&td, 1);
2327                         switch (td.sp [-1].type) {
2328                         case STACK_TYPE_R8:
2329                                 ADD_CODE(&td, MINT_CONV_R4_R8);
2330                                 break;
2331                         case STACK_TYPE_I8:
2332                                 ADD_CODE(&td, MINT_CONV_R4_I8);
2333                                 break;
2334                         case STACK_TYPE_I4:
2335                                 ADD_CODE(&td, MINT_CONV_R4_I4);
2336                                 break;
2337                         default:
2338                                 g_assert_not_reached ();
2339                         }
2340                         ++td.ip;
2341                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2342                         break;
2343                 case CEE_CONV_R8:
2344                         CHECK_STACK (&td, 1);
2345                         switch (td.sp [-1].type) {
2346                         case STACK_TYPE_I4:
2347                                 ADD_CODE(&td, MINT_CONV_R8_I4);
2348                                 break;
2349                         case STACK_TYPE_I8:
2350                                 ADD_CODE(&td, MINT_CONV_R8_I8);
2351                                 break;
2352                         case STACK_TYPE_R8:
2353                                 break;
2354                         default:
2355                                 g_assert_not_reached ();
2356                         }
2357                         ++td.ip;
2358                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2359                         break;
2360                 case CEE_CONV_U8:
2361                         CHECK_STACK (&td, 1);
2362                         switch (td.sp [-1].type) {
2363                         case STACK_TYPE_I4:
2364                                 ADD_CODE(&td, MINT_CONV_U8_I4);
2365                                 break;
2366                         case STACK_TYPE_I8:
2367                                 break;
2368                         case STACK_TYPE_R8:
2369                                 ADD_CODE(&td, MINT_CONV_U8_R8);
2370                                 break;
2371                         case STACK_TYPE_MP:
2372 #if SIZEOF_VOID_P == 4
2373                                 ADD_CODE(&td, MINT_CONV_U8_I4);
2374 #endif
2375                                 break;
2376                         default:
2377                                 g_assert_not_reached ();
2378                         }
2379                         ++td.ip;
2380                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2381                         break;
2382                 case CEE_CPOBJ: {
2383                         CHECK_STACK (&td, 2);
2384
2385                         token = read32 (td.ip + 1);
2386                         klass = mono_class_get_full (image, token, generic_context);
2387
2388                         if (klass->valuetype) {
2389                                 ADD_CODE (&td, MINT_CPOBJ);
2390                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2391                         } else {
2392                                 ADD_CODE (&td, MINT_LDIND_REF);
2393                                 ADD_CODE (&td, MINT_STIND_REF);
2394                         }
2395                         td.ip += 5;
2396                         td.sp -= 2;
2397                         break;
2398                 }
2399                 case CEE_LDOBJ: {
2400                         int size;
2401                         CHECK_STACK (&td, 1);
2402
2403                         token = read32 (td.ip + 1);
2404
2405                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2406                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2407                         else
2408                                 klass = mono_class_get_full (image, token, generic_context);
2409
2410                         ADD_CODE(&td, MINT_LDOBJ);
2411                         ADD_CODE(&td, get_data_item_index(&td, klass));
2412                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2413                                 size = mono_class_value_size (klass, NULL);
2414                                 PUSH_VT(&td, size);
2415                         }
2416                         td.ip += 5;
2417                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
2418                         BARRIER_IF_VOLATILE (td);
2419                         break;
2420                 }
2421                 case CEE_LDSTR: {
2422                         MonoString *s;
2423                         token = mono_metadata_token_index (read32 (td.ip + 1));
2424                         td.ip += 5;
2425                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
2426                                 s = mono_method_get_wrapper_data (method, token);
2427                         } else if (method->wrapper_type != MONO_WRAPPER_NONE) {
2428                                 s = mono_string_new_wrapper (mono_method_get_wrapper_data (method, token));
2429                         } else {
2430                                 s = mono_ldstr (domain, image, token);
2431                         }
2432                         ADD_CODE(&td, MINT_LDSTR);
2433                         ADD_CODE(&td, get_data_item_index (&td, s));
2434                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
2435                         break;
2436                 }
2437                 case CEE_NEWOBJ: {
2438                         MonoMethod *m;
2439                         MonoMethodSignature *csignature;
2440                         guint32 vt_stack_used = 0;
2441                         guint32 vt_res_size = 0;
2442
2443                         td.ip++;
2444                         token = read32 (td.ip);
2445                         td.ip += 4;
2446
2447                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2448                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
2449                         else
2450                                 m = mono_get_method_full (image, token, NULL, generic_context);
2451
2452                         csignature = mono_method_signature (m);
2453                         klass = m->klass;
2454                         td.sp -= csignature->param_count;
2455                         ADD_CODE(&td, MINT_NEWOBJ);
2456                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
2457                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2458
2459                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2460                                 vt_res_size = mono_class_value_size (klass, NULL);
2461                                 PUSH_VT (&td, vt_res_size);
2462                         }
2463                         for (i = 0; i < csignature->param_count; ++i) {
2464                                 int mt = mint_type(csignature->params [i]);
2465                                 if (mt == MINT_TYPE_VT) {
2466                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
2467                                         gint32 size = mono_class_value_size (k, NULL);
2468                                         size = (size + 7) & ~7;
2469                                         vt_stack_used += size;
2470                                 }
2471                         }
2472                         if (vt_stack_used != 0 || vt_res_size != 0) {
2473                                 ADD_CODE(&td, MINT_VTRESULT);
2474                                 ADD_CODE(&td, vt_res_size);
2475                                 WRITE32(&td, &vt_stack_used);
2476                                 td.vt_sp -= vt_stack_used;
2477                         }
2478                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
2479                         break;
2480                 }
2481                 case CEE_CASTCLASS:
2482                         CHECK_STACK (&td, 1);
2483                         token = read32 (td.ip + 1);
2484                         klass = mini_get_class (method, token, generic_context);
2485                         ADD_CODE(&td, MINT_CASTCLASS);
2486                         ADD_CODE(&td, get_data_item_index (&td, klass));
2487                         td.sp [-1].klass = klass;
2488                         td.ip += 5;
2489                         break;
2490                 case CEE_ISINST:
2491                         CHECK_STACK (&td, 1);
2492                         token = read32 (td.ip + 1);
2493                         klass = mini_get_class (method, token, generic_context);
2494                         ADD_CODE(&td, MINT_ISINST);
2495                         ADD_CODE(&td, get_data_item_index (&td, klass));
2496                         td.ip += 5;
2497                         break;
2498                 case CEE_CONV_R_UN:
2499                         switch (td.sp [-1].type) {
2500                         case STACK_TYPE_R8:
2501                                 break;
2502                         case STACK_TYPE_I8:
2503                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
2504                                 break;
2505                         case STACK_TYPE_I4:
2506                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
2507                                 break;
2508                         default:
2509                                 g_assert_not_reached ();
2510                         }
2511                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2512                         ++td.ip;
2513                         break;
2514                 case CEE_UNBOX:
2515                         CHECK_STACK (&td, 1);
2516                         token = read32 (td.ip + 1);
2517
2518                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2519                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2520                         else
2521                                 klass = mono_class_get_full (image, token, generic_context);
2522
2523                         if (mono_class_is_nullable (klass)) {
2524                                 g_error ("cee_unbox: implement Nullable");
2525                         }
2526
2527                         ADD_CODE(&td, MINT_UNBOX);
2528                         ADD_CODE(&td, get_data_item_index (&td, klass));
2529                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2530                         td.ip += 5;
2531                         break;
2532                 case CEE_UNBOX_ANY:
2533                         CHECK_STACK (&td, 1);
2534                         token = read32 (td.ip + 1);
2535
2536                         klass = mini_get_class (method, token, generic_context);
2537
2538                         if (mini_type_is_reference (&klass->byval_arg)) {
2539                                 int mt = mint_type (&klass->byval_arg);
2540                                 ADD_CODE (&td, MINT_CASTCLASS);
2541                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2542                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2543                                 td.ip += 5;
2544                         } else if (mono_class_is_nullable (klass)) {
2545                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2546                                 /* td.ip is incremented by interp_transform_call */
2547                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2548                         } else {
2549                                 int mt = mint_type (&klass->byval_arg);
2550                                 ADD_CODE (&td, MINT_UNBOX);
2551                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2552
2553                                 ADD_CODE (&td, MINT_LDOBJ);
2554                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2555                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2556
2557                                 if (mt == MINT_TYPE_VT) {
2558                                         int size = mono_class_value_size (klass, NULL);
2559                                         PUSH_VT (&td, size);
2560                                 }
2561                                 td.ip += 5;
2562                         }
2563
2564                         break;
2565                 case CEE_THROW:
2566                         CHECK_STACK (&td, 1);
2567                         SIMPLE_OP (td, MINT_THROW);
2568                         --td.sp;
2569                         generating_code = 0;
2570                         break;
2571                 case CEE_LDFLDA:
2572                         CHECK_STACK (&td, 1);
2573                         token = read32 (td.ip + 1);
2574                         field = interp_field_from_token (method, token, &klass, generic_context);
2575                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2576                         mono_class_init (klass);
2577                         if (is_static) {
2578                                 ADD_CODE (&td, MINT_POP);
2579                                 ADD_CODE (&td, 0);
2580                                 ADD_CODE (&td, MINT_LDSFLDA);
2581                                 ADD_CODE (&td, get_data_item_index (&td, field));
2582                         } else {
2583                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2584                                         ADD_CODE (&td, MINT_LDFLDA);
2585                                 } else {
2586                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2587                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2588                                 }
2589                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2590                         }
2591                         td.ip += 5;
2592                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2593                         break;
2594                 case CEE_LDFLD: {
2595                         CHECK_STACK (&td, 1);
2596                         token = read32 (td.ip + 1);
2597                         field = interp_field_from_token (method, token, &klass, generic_context);
2598                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2599                         mono_class_init (klass);
2600
2601                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2602                         mt = mint_type (&field_klass->byval_arg);
2603 #ifndef DISABLE_REMOTING
2604                         if (klass->marshalbyref) {
2605                                 g_assert (!is_static);
2606                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2607                                 ADD_CODE(&td, get_data_item_index (&td, field));
2608                         } else
2609 #endif
2610                         {
2611                                 if (is_static) {
2612                                         ADD_CODE (&td, MINT_POP);
2613                                         ADD_CODE (&td, 0);
2614                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2615                                         ADD_CODE (&td, get_data_item_index (&td, field));
2616                                 } else {
2617                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2618                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2619                                 }
2620                         }
2621                         if (mt == MINT_TYPE_VT) {
2622                                 int size = mono_class_value_size (field_klass, NULL);
2623                                 PUSH_VT(&td, size);
2624                                 WRITE32(&td, &size);
2625                         }
2626                         if (td.sp [-1].type == STACK_TYPE_VT) {
2627                                 int size = mono_class_value_size (klass, NULL);
2628                                 size = (size + 7) & ~7;
2629                                 td.vt_sp -= size;
2630                                 ADD_CODE (&td, MINT_VTRESULT);
2631                                 ADD_CODE (&td, 0);
2632                                 WRITE32 (&td, &size);
2633                         }
2634                         td.ip += 5;
2635                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2636                         BARRIER_IF_VOLATILE (td);
2637                         break;
2638                 }
2639                 case CEE_STFLD: {
2640                         CHECK_STACK (&td, 2);
2641                         token = read32 (td.ip + 1);
2642                         field = interp_field_from_token (method, token, &klass, generic_context);
2643                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2644                         mono_class_init (klass);
2645                         mt = mint_type(field->type);
2646
2647                         BARRIER_IF_VOLATILE (td);
2648
2649 #ifndef DISABLE_REMOTING
2650                         if (klass->marshalbyref) {
2651                                 g_assert (!is_static);
2652                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2653                                 ADD_CODE(&td, get_data_item_index (&td, field));
2654                         } else
2655 #endif
2656                         {
2657                                 if (is_static) {
2658                                         ADD_CODE (&td, MINT_POP);
2659                                         ADD_CODE (&td, 1);
2660                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2661                                         ADD_CODE (&td, get_data_item_index (&td, field));
2662                                 } else {
2663                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2664                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2665                                 }
2666                         }
2667                         if (mt == MINT_TYPE_VT) {
2668                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2669                                 int size = mono_class_value_size (klass, NULL);
2670                                 POP_VT(&td, size);
2671                                 WRITE32(&td, &size);
2672                         }
2673                         td.ip += 5;
2674                         td.sp -= 2;
2675                         break;
2676                 }
2677                 case CEE_LDSFLDA:
2678                         token = read32 (td.ip + 1);
2679                         field = interp_field_from_token (method, token, &klass, generic_context);
2680                         ADD_CODE(&td, MINT_LDSFLDA);
2681                         ADD_CODE(&td, get_data_item_index (&td, field));
2682                         td.ip += 5;
2683                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2684                         break;
2685                 case CEE_LDSFLD:
2686                         token = read32 (td.ip + 1);
2687                         field = interp_field_from_token (method, token, &klass, generic_context);
2688                         mt = mint_type(field->type);
2689                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2690                         ADD_CODE(&td, get_data_item_index (&td, field));
2691                         klass = NULL;
2692                         if (mt == MINT_TYPE_VT) {
2693                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2694                                 int size = mono_class_value_size (klass, NULL);
2695                                 PUSH_VT(&td, size);
2696                                 WRITE32(&td, &size);
2697                                 klass = field->type->data.klass;
2698                         } else {
2699                                 if (mt == MINT_TYPE_O)
2700                                         klass = mono_class_from_mono_type (field->type);
2701                         }
2702                         td.ip += 5;
2703                         PUSH_TYPE(&td, stack_type [mt], klass);
2704                         break;
2705                 case CEE_STSFLD:
2706                         CHECK_STACK (&td, 1);
2707                         token = read32 (td.ip + 1);
2708                         field = interp_field_from_token (method, token, &klass, generic_context);
2709                         mt = mint_type(field->type);
2710                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2711                         ADD_CODE(&td, get_data_item_index (&td, field));
2712                         if (mt == MINT_TYPE_VT) {
2713                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2714                                 int size = mono_class_value_size (klass, NULL);
2715                                 POP_VT (&td, size);
2716                                 WRITE32 (&td, &size);
2717                         }
2718                         td.ip += 5;
2719                         --td.sp;
2720                         break;
2721                 case CEE_STOBJ: {
2722                         int size;
2723                         token = read32 (td.ip + 1);
2724
2725                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2726                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2727                         else
2728                                 klass = mini_get_class (method, token, generic_context);
2729
2730                         BARRIER_IF_VOLATILE (td);
2731                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2732                         ADD_CODE(&td, get_data_item_index (&td, klass));
2733                         if (td.sp [-1].type == STACK_TYPE_VT) {
2734                                 size = mono_class_value_size (klass, NULL);
2735                                 size = (size + 7) & ~7;
2736                                 td.vt_sp -= size;
2737                         }
2738                         td.ip += 5;
2739                         td.sp -= 2;
2740                         break;
2741                 }
2742                 case CEE_CONV_OVF_I_UN:
2743                 case CEE_CONV_OVF_U_UN:
2744                         CHECK_STACK (&td, 1);
2745                         switch (td.sp [-1].type) {
2746                         case STACK_TYPE_R8:
2747 #if SIZEOF_VOID_P == 8
2748                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2749 #else
2750                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2751 #endif
2752                                 break;
2753                         case STACK_TYPE_I8:
2754 #if SIZEOF_VOID_P == 4
2755                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2756 #endif
2757                                 break;
2758                         case STACK_TYPE_I4:
2759 #if SIZEOF_VOID_P == 8
2760                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2761 #elif SIZEOF_VOID_P == 4
2762                                 if (*td.ip == CEE_CONV_OVF_I_UN)
2763                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2764 #endif
2765                                 break;
2766                         default:
2767                                 g_assert_not_reached ();
2768                                 break;
2769                         }
2770                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2771                         ++td.ip;
2772                         break;
2773                 case CEE_CONV_OVF_I8_UN:
2774                 case CEE_CONV_OVF_U8_UN:
2775                         CHECK_STACK (&td, 1);
2776                         switch (td.sp [-1].type) {
2777                         case STACK_TYPE_R8:
2778                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2779                                 break;
2780                         case STACK_TYPE_I8:
2781                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2782                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2783                                 break;
2784                         case STACK_TYPE_I4:
2785                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2786                                 break;
2787                         default:
2788                                 g_assert_not_reached ();
2789                                 break;
2790                         }
2791                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2792                         ++td.ip;
2793                         break;
2794                 case CEE_BOX: {
2795                         int size;
2796                         CHECK_STACK (&td, 1);
2797                         token = read32 (td.ip + 1);
2798                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2799                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2800                         else
2801                                 klass = mini_get_class (method, token, generic_context);
2802
2803                         if (mono_class_is_nullable (klass)) {
2804                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2805                                 /* td.ip is incremented by interp_transform_call */
2806                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2807                         } else if (!klass->valuetype) {
2808                                 /* already boxed, do nothing. */
2809                                 td.ip += 5;
2810                         } else {
2811                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2812                                         size = mono_class_value_size (klass, NULL);
2813                                         size = (size + 7) & ~7;
2814                                         td.vt_sp -= size;
2815                                 }
2816                                 ADD_CODE(&td, MINT_BOX);
2817                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2818                                 ADD_CODE (&td, 0);
2819                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2820                                 td.ip += 5;
2821                         }
2822
2823                         break;
2824                 }
2825                 case CEE_NEWARR: {
2826                         CHECK_STACK (&td, 1);
2827                         token = read32 (td.ip + 1);
2828
2829                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2830                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2831                         else
2832                                 klass = mini_get_class (method, token, generic_context);
2833
2834                         unsigned char lentype = (td.sp - 1)->type;
2835                         if (lentype == STACK_TYPE_I8) {
2836                                 /* mimic mini behaviour */
2837                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2838                         } else {
2839                                 g_assert (lentype == STACK_TYPE_I4);
2840                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2841                         }
2842                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2843                         ADD_CODE (&td, MINT_NEWARR);
2844                         ADD_CODE (&td, get_data_item_index (&td, klass));
2845                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2846                         td.ip += 5;
2847                         break;
2848                 }
2849                 case CEE_LDLEN:
2850                         CHECK_STACK (&td, 1);
2851                         SIMPLE_OP (td, MINT_LDLEN);
2852                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2853                         break;
2854                 case CEE_LDELEMA:
2855                         CHECK_STACK (&td, 2);
2856                         ENSURE_I4 (&td, 1);
2857                         token = read32 (td.ip + 1);
2858
2859                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2860                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2861                         else
2862                                 klass = mini_get_class (method, token, generic_context);
2863
2864                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2865                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2866                         } else {
2867                                 ADD_CODE (&td, MINT_LDELEMA);
2868                         }
2869                         ADD_CODE (&td, get_data_item_index (&td, klass));
2870                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2871                         ADD_CODE (&td, 2);
2872                         readonly = FALSE;
2873
2874                         td.ip += 5;
2875                         --td.sp;
2876                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2877                         break;
2878                 case CEE_LDELEM_I1:
2879                         CHECK_STACK (&td, 2);
2880                         ENSURE_I4 (&td, 1);
2881                         SIMPLE_OP (td, MINT_LDELEM_I1);
2882                         --td.sp;
2883                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2884                         break;
2885                 case CEE_LDELEM_U1:
2886                         CHECK_STACK (&td, 2);
2887                         ENSURE_I4 (&td, 1);
2888                         SIMPLE_OP (td, MINT_LDELEM_U1);
2889                         --td.sp;
2890                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2891                         break;
2892                 case CEE_LDELEM_I2:
2893                         CHECK_STACK (&td, 2);
2894                         ENSURE_I4 (&td, 1);
2895                         SIMPLE_OP (td, MINT_LDELEM_I2);
2896                         --td.sp;
2897                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2898                         break;
2899                 case CEE_LDELEM_U2:
2900                         CHECK_STACK (&td, 2);
2901                         ENSURE_I4 (&td, 1);
2902                         SIMPLE_OP (td, MINT_LDELEM_U2);
2903                         --td.sp;
2904                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2905                         break;
2906                 case CEE_LDELEM_I4:
2907                         CHECK_STACK (&td, 2);
2908                         ENSURE_I4 (&td, 1);
2909                         SIMPLE_OP (td, MINT_LDELEM_I4);
2910                         --td.sp;
2911                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2912                         break;
2913                 case CEE_LDELEM_U4:
2914                         CHECK_STACK (&td, 2);
2915                         ENSURE_I4 (&td, 1);
2916                         SIMPLE_OP (td, MINT_LDELEM_U4);
2917                         --td.sp;
2918                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2919                         break;
2920                 case CEE_LDELEM_I8:
2921                         CHECK_STACK (&td, 2);
2922                         ENSURE_I4 (&td, 1);
2923                         SIMPLE_OP (td, MINT_LDELEM_I8);
2924                         --td.sp;
2925                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2926                         break;
2927                 case CEE_LDELEM_I:
2928                         CHECK_STACK (&td, 2);
2929                         ENSURE_I4 (&td, 1);
2930                         SIMPLE_OP (td, MINT_LDELEM_I);
2931                         --td.sp;
2932                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2933                         break;
2934                 case CEE_LDELEM_R4:
2935                         CHECK_STACK (&td, 2);
2936                         ENSURE_I4 (&td, 1);
2937                         SIMPLE_OP (td, MINT_LDELEM_R4);
2938                         --td.sp;
2939                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2940                         break;
2941                 case CEE_LDELEM_R8:
2942                         CHECK_STACK (&td, 2);
2943                         ENSURE_I4 (&td, 1);
2944                         SIMPLE_OP (td, MINT_LDELEM_R8);
2945                         --td.sp;
2946                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2947                         break;
2948                 case CEE_LDELEM_REF:
2949                         CHECK_STACK (&td, 2);
2950                         ENSURE_I4 (&td, 1);
2951                         SIMPLE_OP (td, MINT_LDELEM_REF);
2952                         --td.sp;
2953                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2954                         break;
2955                 case CEE_LDELEM:
2956                         CHECK_STACK (&td, 2);
2957                         token = read32 (td.ip + 1);
2958                         klass = mini_get_class (method, token, generic_context);
2959                         switch (mint_type (&klass->byval_arg)) {
2960                                 case MINT_TYPE_I1:
2961                                         ENSURE_I4 (&td, 1);
2962                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2963                                         --td.sp;
2964                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2965                                         break;
2966                                 case MINT_TYPE_U1:
2967                                         ENSURE_I4 (&td, 1);
2968                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2969                                         --td.sp;
2970                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2971                                         break;
2972                                 case MINT_TYPE_U2:
2973                                         ENSURE_I4 (&td, 1);
2974                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2975                                         --td.sp;
2976                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2977                                         break;
2978                                 case MINT_TYPE_I2:
2979                                         ENSURE_I4 (&td, 1);
2980                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2981                                         --td.sp;
2982                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2983                                         break;
2984                                 case MINT_TYPE_I4:
2985                                         ENSURE_I4 (&td, 1);
2986                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2987                                         --td.sp;
2988                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2989                                         break;
2990                                 case MINT_TYPE_I8:
2991                                         ENSURE_I4 (&td, 1);
2992                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2993                                         --td.sp;
2994                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2995                                         break;
2996                                 case MINT_TYPE_R4:
2997                                         ENSURE_I4 (&td, 1);
2998                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2999                                         --td.sp;
3000                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
3001                                         break;
3002                                 case MINT_TYPE_R8:
3003                                         ENSURE_I4 (&td, 1);
3004                                         SIMPLE_OP (td, MINT_LDELEM_R8);
3005                                         --td.sp;
3006                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
3007                                         break;
3008                                 case MINT_TYPE_O:
3009                                         ENSURE_I4 (&td, 1);
3010                                         SIMPLE_OP (td, MINT_LDELEM_REF);
3011                                         --td.sp;
3012                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
3013                                         break;
3014                                 case MINT_TYPE_VT: {
3015                                         int size = mono_class_value_size (klass, NULL);
3016                                         ENSURE_I4 (&td, 1);
3017                                         SIMPLE_OP (td, MINT_LDELEM_VT);
3018                                         ADD_CODE (&td, get_data_item_index (&td, klass));
3019                                         WRITE32 (&td, &size);
3020                                         --td.sp;
3021                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
3022                                         PUSH_VT (&td, size);
3023                                         break;
3024                                 }
3025                                 default: {
3026                                         GString *res = g_string_new ("");
3027                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
3028                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
3029                                         g_string_free (res, TRUE);
3030                                         g_assert (0);
3031                                         break;
3032                                 }
3033                         }
3034                         td.ip += 4;
3035                         break;
3036                 case CEE_STELEM_I:
3037                         CHECK_STACK (&td, 3);
3038                         ENSURE_I4 (&td, 2);
3039                         SIMPLE_OP (td, MINT_STELEM_I);
3040                         td.sp -= 3;
3041                         break;
3042                 case CEE_STELEM_I1:
3043                         CHECK_STACK (&td, 3);
3044                         ENSURE_I4 (&td, 2);
3045                         SIMPLE_OP (td, MINT_STELEM_I1);
3046                         td.sp -= 3;
3047                         break;
3048                 case CEE_STELEM_I2:
3049                         CHECK_STACK (&td, 3);
3050                         ENSURE_I4 (&td, 2);
3051                         SIMPLE_OP (td, MINT_STELEM_I2);
3052                         td.sp -= 3;
3053                         break;
3054                 case CEE_STELEM_I4:
3055                         CHECK_STACK (&td, 3);
3056                         ENSURE_I4 (&td, 2);
3057                         SIMPLE_OP (td, MINT_STELEM_I4);
3058                         td.sp -= 3;
3059                         break;
3060                 case CEE_STELEM_I8:
3061                         CHECK_STACK (&td, 3);
3062                         ENSURE_I4 (&td, 2);
3063                         SIMPLE_OP (td, MINT_STELEM_I8);
3064                         td.sp -= 3;
3065                         break;
3066                 case CEE_STELEM_R4:
3067                         CHECK_STACK (&td, 3);
3068                         ENSURE_I4 (&td, 2);
3069                         SIMPLE_OP (td, MINT_STELEM_R4);
3070                         td.sp -= 3;
3071                         break;
3072                 case CEE_STELEM_R8:
3073                         CHECK_STACK (&td, 3);
3074                         ENSURE_I4 (&td, 2);
3075                         SIMPLE_OP (td, MINT_STELEM_R8);
3076                         td.sp -= 3;
3077                         break;
3078                 case CEE_STELEM_REF:
3079                         CHECK_STACK (&td, 3);
3080                         ENSURE_I4 (&td, 2);
3081                         SIMPLE_OP (td, MINT_STELEM_REF);
3082                         td.sp -= 3;
3083                         break;
3084                 case CEE_STELEM:
3085                         CHECK_STACK (&td, 3);
3086                         ENSURE_I4 (&td, 2);
3087                         token = read32 (td.ip + 1);
3088                         klass = mini_get_class (method, token, generic_context);
3089                         switch (mint_type (&klass->byval_arg)) {
3090                                 case MINT_TYPE_U1:
3091                                         SIMPLE_OP (td, MINT_STELEM_U1);
3092                                         break;
3093                                 case MINT_TYPE_U2:
3094                                         SIMPLE_OP (td, MINT_STELEM_U2);
3095                                         break;
3096                                 case MINT_TYPE_I4:
3097                                         SIMPLE_OP (td, MINT_STELEM_I4);
3098                                         break;
3099                                 case MINT_TYPE_I8:
3100                                         SIMPLE_OP (td, MINT_STELEM_I8);
3101                                         break;
3102                                 case MINT_TYPE_O:
3103                                         SIMPLE_OP (td, MINT_STELEM_REF);
3104                                         break;
3105                                 case MINT_TYPE_VT: {
3106                                         int size = mono_class_value_size (klass, NULL);
3107                                         SIMPLE_OP (td, MINT_STELEM_VT);
3108                                         ADD_CODE (&td, get_data_item_index (&td, klass));
3109                                         WRITE32 (&td, &size);
3110                                         POP_VT (&td, size);
3111                                         break;
3112                                 }
3113                                 default: {
3114                                         GString *res = g_string_new ("");
3115                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
3116                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
3117                                         g_string_free (res, TRUE);
3118                                         g_assert (0);
3119                                         break;
3120                                 }
3121                         }
3122                         td.ip += 4;
3123                         td.sp -= 3;
3124                         break;
3125 #if 0
3126                 case CEE_CONV_OVF_U1:
3127
3128                 case CEE_CONV_OVF_I8:
3129
3130 #if SIZEOF_VOID_P == 8
3131                 case CEE_CONV_OVF_U:
3132 #endif
3133 #endif
3134                 case CEE_CKFINITE:
3135                         CHECK_STACK (&td, 1);
3136                         SIMPLE_OP (td, MINT_CKFINITE);
3137                         break;
3138                 case CEE_MKREFANY:
3139                         CHECK_STACK (&td, 1);
3140                         ENSURE_I4 (&td, 2);
3141                         token = read32 (td.ip + 1);
3142                         klass = mini_get_class (method, token, generic_context);
3143
3144                         ADD_CODE (&td, MINT_MKREFANY);
3145                         ADD_CODE (&td, get_data_item_index (&td, klass));
3146
3147                         td.ip += 5;
3148                         PUSH_VT (&td, sizeof (MonoTypedRef));
3149                         SET_TYPE(td.sp - 1, STACK_TYPE_VT, mono_defaults.typed_reference_class);
3150                         break;
3151                 case CEE_REFANYVAL: {
3152                         CHECK_STACK (&td, 1);
3153                         ENSURE_I4 (&td, 2);
3154                         token = read32 (td.ip + 1);
3155
3156                         ADD_CODE (&td, MINT_REFANYVAL);
3157
3158                         POP_VT (&td, sizeof (MonoTypedRef));
3159                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3160
3161                         td.ip += 5;
3162                         break;
3163                 }
3164                 case CEE_CONV_OVF_I1:
3165                 case CEE_CONV_OVF_I1_UN:
3166                         CHECK_STACK (&td, 1);
3167                         switch (td.sp [-1].type) {
3168                         case STACK_TYPE_R8:
3169                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
3170                                 break;
3171                         case STACK_TYPE_I4:
3172                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
3173                                 break;
3174                         case STACK_TYPE_I8:
3175                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
3176                                 break;
3177                         default:
3178                                 g_assert_not_reached ();
3179                         }
3180                         ++td.ip;
3181                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3182                         break;
3183                 case CEE_CONV_OVF_U1:
3184                 case CEE_CONV_OVF_U1_UN:
3185                         CHECK_STACK (&td, 1);
3186                         switch (td.sp [-1].type) {
3187                         case STACK_TYPE_R8:
3188                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
3189                                 break;
3190                         case STACK_TYPE_I4:
3191                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
3192                                 break;
3193                         case STACK_TYPE_I8:
3194                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
3195                                 break;
3196                         default:
3197                                 g_assert_not_reached ();
3198                         }
3199                         ++td.ip;
3200                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3201                         break;
3202                 case CEE_CONV_OVF_I2:
3203                 case CEE_CONV_OVF_I2_UN:
3204                         CHECK_STACK (&td, 1);
3205                         switch (td.sp [-1].type) {
3206                         case STACK_TYPE_R8:
3207                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
3208                                 break;
3209                         case STACK_TYPE_I4:
3210                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
3211                                 break;
3212                         case STACK_TYPE_I8:
3213                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
3214                                 break;
3215                         default:
3216                                 g_assert_not_reached ();
3217                         }
3218                         ++td.ip;
3219                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3220                         break;
3221                 case CEE_CONV_OVF_U2_UN:
3222                 case CEE_CONV_OVF_U2:
3223                         CHECK_STACK (&td, 1);
3224                         switch (td.sp [-1].type) {
3225                         case STACK_TYPE_R8:
3226                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
3227                                 break;
3228                         case STACK_TYPE_I4:
3229                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
3230                                 break;
3231                         case STACK_TYPE_I8:
3232                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
3233                                 break;
3234                         default:
3235                                 g_assert_not_reached ();
3236                         }
3237                         ++td.ip;
3238                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3239                         break;
3240 #if SIZEOF_VOID_P == 4
3241                 case CEE_CONV_OVF_I:
3242 #endif
3243                 case CEE_CONV_OVF_I4:
3244                 case CEE_CONV_OVF_I4_UN:
3245                         CHECK_STACK (&td, 1);
3246                         switch (td.sp [-1].type) {
3247                         case STACK_TYPE_R8:
3248                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
3249                                 break;
3250                         case STACK_TYPE_I4:
3251                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
3252                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
3253                                 break;
3254                         case STACK_TYPE_I8:
3255                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
3256                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
3257                                 else
3258                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
3259                                 break;
3260                         default:
3261                                 g_assert_not_reached ();
3262                         }
3263                         ++td.ip;
3264                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3265                         break;
3266 #if SIZEOF_VOID_P == 4
3267                 case CEE_CONV_OVF_U:
3268 #endif
3269                 case CEE_CONV_OVF_U4:
3270                 case CEE_CONV_OVF_U4_UN:
3271                         CHECK_STACK (&td, 1);
3272                         switch (td.sp [-1].type) {
3273                         case STACK_TYPE_R8:
3274                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
3275                                 break;
3276                         case STACK_TYPE_I4:
3277                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
3278                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
3279                                 break;
3280                         case STACK_TYPE_I8:
3281                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
3282                                 break;
3283                         default:
3284                                 g_assert_not_reached ();
3285                         }
3286                         ++td.ip;
3287                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3288                         break;
3289 #if SIZEOF_VOID_P == 8
3290                 case CEE_CONV_OVF_I:
3291 #endif
3292                 case CEE_CONV_OVF_I8:
3293                         CHECK_STACK (&td, 1);
3294                         switch (td.sp [-1].type) {
3295                         case STACK_TYPE_R8:
3296                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
3297                                 break;
3298                         case STACK_TYPE_I4:
3299                                 ADD_CODE(&td, MINT_CONV_I8_I4);
3300                                 break;
3301                         case STACK_TYPE_I8:
3302                                 break;
3303                         default:
3304                                 g_assert_not_reached ();
3305                         }
3306                         ++td.ip;
3307                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
3308                         break;
3309 #if SIZEOF_VOID_P == 8
3310                 case CEE_CONV_OVF_U:
3311 #endif
3312                 case CEE_CONV_OVF_U8:
3313                         CHECK_STACK (&td, 1);
3314                         switch (td.sp [-1].type) {
3315                         case STACK_TYPE_R8:
3316                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
3317                                 break;
3318                         case STACK_TYPE_I4:
3319                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
3320                                 break;
3321                         case STACK_TYPE_I8:
3322                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
3323                                 break;
3324                         default:
3325                                 g_assert_not_reached ();
3326                         }
3327                         ++td.ip;
3328                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
3329                         break;
3330                 case CEE_LDTOKEN: {
3331                         int size;
3332                         gpointer handle;
3333                         token = read32 (td.ip + 1);
3334                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3335                                 handle = mono_method_get_wrapper_data (method, token);
3336                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
3337                                 if (klass == mono_defaults.typehandle_class)
3338                                         handle = &((MonoClass *) handle)->byval_arg;
3339
3340                                 if (generic_context) {
3341                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
3342                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3343                                 }
3344                         } else {
3345                                 handle = mono_ldtoken (image, token, &klass, generic_context);
3346                         }
3347                         mono_class_init (klass);
3348                         mt = mint_type (&klass->byval_arg);
3349                         g_assert (mt == MINT_TYPE_VT);
3350                         size = mono_class_value_size (klass, NULL);
3351                         g_assert (size == sizeof(gpointer));
3352                         PUSH_VT (&td, sizeof(gpointer));
3353                         ADD_CODE (&td, MINT_LDTOKEN);
3354                         ADD_CODE (&td, get_data_item_index (&td, handle));
3355
3356                         SET_TYPE (td.sp, stack_type [mt], klass);
3357                         td.sp++;
3358                         td.ip += 5;
3359                         break;
3360                 }
3361                 case CEE_ADD_OVF:
3362                         binary_arith_op(&td, MINT_ADD_OVF_I4);
3363                         ++td.ip;
3364                         break;
3365                 case CEE_ADD_OVF_UN:
3366                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
3367                         ++td.ip;
3368                         break;
3369                 case CEE_MUL_OVF:
3370                         binary_arith_op(&td, MINT_MUL_OVF_I4);
3371                         ++td.ip;
3372                         break;
3373                 case CEE_MUL_OVF_UN:
3374                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
3375                         ++td.ip;
3376                         break;
3377                 case CEE_SUB_OVF:
3378                         binary_arith_op(&td, MINT_SUB_OVF_I4);
3379                         ++td.ip;
3380                         break;
3381                 case CEE_SUB_OVF_UN:
3382                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
3383                         ++td.ip;
3384                         break;
3385                 case CEE_ENDFINALLY:
3386                         g_assert (td.clause_indexes [in_offset] != -1);
3387                         td.sp = td.stack;
3388                         SIMPLE_OP (td, MINT_ENDFINALLY);
3389                         ADD_CODE (&td, td.clause_indexes [in_offset]);
3390                         generating_code = 0;
3391                         break;
3392                 case CEE_LEAVE:
3393                         td.sp = td.stack;
3394                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
3395                         td.ip += 5;
3396                         generating_code = 0;
3397                         break;
3398                 case CEE_LEAVE_S:
3399                         td.sp = td.stack;
3400                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
3401                         td.ip += 2;
3402                         generating_code = 0;
3403                         break;
3404                 case CEE_UNUSED41:
3405                         ++td.ip;
3406                         switch (*td.ip) {
3407                                 case CEE_MONO_CALLI_EXTRA_ARG:
3408                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
3409                                         ADD_CODE (&td, MINT_POP);
3410                                         ADD_CODE (&td, 1);
3411                                         --td.sp;
3412                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
3413                                         break;
3414                                 case CEE_MONO_JIT_ICALL_ADDR: {
3415                                         guint32 token;
3416                                         gpointer func;
3417                                         MonoJitICallInfo *info;
3418
3419                                         token = read32 (td.ip + 1);
3420                                         td.ip += 5;
3421                                         func = mono_method_get_wrapper_data (method, token);
3422                                         info = mono_find_jit_icall_by_addr (func);
3423
3424                                         ADD_CODE (&td, MINT_LDFTN);
3425                                         ADD_CODE (&td, get_data_item_index (&td, func));
3426                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
3427                                         break;
3428                                 }
3429                                 case CEE_MONO_ICALL: {
3430                                         guint32 token;
3431                                         gpointer func;
3432                                         MonoJitICallInfo *info;
3433
3434                                         token = read32 (td.ip + 1);
3435                                         td.ip += 5;
3436                                         func = mono_method_get_wrapper_data (method, token);
3437                                         info = mono_find_jit_icall_by_addr (func);
3438                                         g_assert (info);
3439
3440                                         CHECK_STACK (&td, info->sig->param_count);
3441                                         switch (info->sig->param_count) {
3442                                         case 0:
3443                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3444                                                         ADD_CODE (&td,MINT_ICALL_V_V);
3445                                                 else
3446                                                         ADD_CODE (&td, MINT_ICALL_V_P);
3447                                                 break;
3448                                         case 1:
3449                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3450                                                         ADD_CODE (&td,MINT_ICALL_P_V);
3451                                                 else
3452                                                         ADD_CODE (&td,MINT_ICALL_P_P);
3453                                                 break;
3454                                         case 2:
3455                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
3456                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3457                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
3458                                                         else
3459                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
3460                                                 } else {
3461                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3462                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
3463                                                         else
3464                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
3465                                                 }
3466                                                 break;
3467                                         case 3:
3468                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
3469                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
3470                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
3471                                                 else
3472                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
3473                                                 break;
3474                                         default:
3475                                                 g_assert_not_reached ();
3476                                         }
3477
3478                                         if (func == mono_ftnptr_to_delegate) {
3479                                                 g_error ("TODO: ?");
3480                                         }
3481                                         ADD_CODE(&td, get_data_item_index (&td, func));
3482                                         td.sp -= info->sig->param_count;
3483
3484                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
3485                                                 td.sp ++;
3486                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
3487                                         }
3488                                         break;
3489                                 }
3490                         case CEE_MONO_VTADDR: {
3491                                 int size;
3492                                 CHECK_STACK (&td, 1);
3493                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
3494                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
3495                                 else
3496                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
3497                                 size = (size + 7) & ~7;
3498                                 ADD_CODE(&td, MINT_VTRESULT);
3499                                 ADD_CODE(&td, 0);
3500                                 WRITE32(&td, &size);
3501                                 td.vt_sp -= size;
3502                                 ++td.ip;
3503                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3504                                 break;
3505                         }
3506                         case CEE_MONO_LDPTR:
3507                         case CEE_MONO_CLASSCONST:
3508                                 token = read32 (td.ip + 1);
3509                                 td.ip += 5;
3510                                 ADD_CODE(&td, MINT_MONO_LDPTR);
3511                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
3512                                 td.sp [0].type = STACK_TYPE_I;
3513                                 ++td.sp;
3514                                 break;
3515                         case CEE_MONO_OBJADDR:
3516                                 CHECK_STACK (&td, 1);
3517                                 ++td.ip;
3518                                 td.sp[-1].type = STACK_TYPE_MP;
3519                                 /* do nothing? */
3520                                 break;
3521                         case CEE_MONO_NEWOBJ:
3522                                 token = read32 (td.ip + 1);
3523                                 td.ip += 5;
3524                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
3525                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
3526                                 td.sp [0].type = STACK_TYPE_O;
3527                                 ++td.sp;
3528                                 break;
3529                         case CEE_MONO_RETOBJ:
3530                                 CHECK_STACK (&td, 1);
3531                                 token = read32 (td.ip + 1);
3532                                 td.ip += 5;
3533                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
3534                                 td.sp--;
3535
3536                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3537
3538                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
3539
3540                                 if (td.sp > td.stack)
3541                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
3542                                 break;
3543                         case CEE_MONO_LDNATIVEOBJ:
3544                                 token = read32 (td.ip + 1);
3545                                 td.ip += 5;
3546                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3547                                 g_assert(klass->valuetype);
3548                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3549                                 break;
3550                         case CEE_MONO_TLS: {
3551                                 gint32 key = read32 (td.ip + 1);
3552                                 td.ip += 5;
3553                                 g_assert (key < TLS_KEY_NUM);
3554                                 ADD_CODE (&td, MINT_MONO_TLS);
3555                                 WRITE32 (&td, &key);
3556                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_MP);
3557                                 break;
3558                         }
3559                         case CEE_MONO_ATOMIC_STORE_I4:
3560                                 CHECK_STACK (&td, 2);
3561                                 SIMPLE_OP (td, MINT_MONO_ATOMIC_STORE_I4);
3562                                 td.sp -= 2;
3563                                 td.ip++;
3564                                 break;
3565                         case CEE_MONO_SAVE_LMF:
3566                         case CEE_MONO_RESTORE_LMF:
3567                         case CEE_MONO_NOT_TAKEN:
3568                                 ++td.ip;
3569                                 break;
3570                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
3571                                 ADD_CODE (&td, MINT_MONO_LDPTR);
3572                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
3573                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
3574                                 ++td.ip;
3575                                 break;
3576                         case CEE_MONO_MEMORY_BARRIER:
3577                                 ADD_CODE (&td, MINT_MONO_MEMORY_BARRIER);
3578                                 ++td.ip;
3579                                 break;
3580                         case CEE_MONO_JIT_ATTACH:
3581                                 ADD_CODE (&td, MINT_MONO_JIT_ATTACH);
3582                                 ++td.ip;
3583                                 break;
3584                         case CEE_MONO_JIT_DETACH:
3585                                 ADD_CODE (&td, MINT_MONO_JIT_DETACH);
3586                                 ++td.ip;
3587                                 break;
3588                         default:
3589                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
3590                         }
3591                         break;
3592 #if 0
3593                 case CEE_PREFIX7:
3594                 case CEE_PREFIX6:
3595                 case CEE_PREFIX5:
3596                 case CEE_PREFIX4:
3597                 case CEE_PREFIX3:
3598                 case CEE_PREFIX2:
3599                 case CEE_PREFIXREF: ves_abort(); break;
3600 #endif
3601                 /*
3602                  * Note: Exceptions thrown when executing a prefixed opcode need
3603                  * to take into account the number of prefix bytes (usually the
3604                  * throw point is just (ip - n_prefix_bytes).
3605                  */
3606                 case CEE_PREFIX1:
3607                         ++td.ip;
3608                         switch (*td.ip) {
3609 #if 0
3610                         case CEE_ARGLIST: ves_abort(); break;
3611 #endif
3612                         case CEE_CEQ:
3613                                 CHECK_STACK(&td, 2);
3614                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3615                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3616                                 else
3617                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
3618                                 --td.sp;
3619                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3620                                 ++td.ip;
3621                                 break;
3622                         case CEE_CGT:
3623                                 CHECK_STACK(&td, 2);
3624                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3625                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3626                                 else
3627                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3628                                 --td.sp;
3629                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3630                                 ++td.ip;
3631                                 break;
3632                         case CEE_CGT_UN:
3633                                 CHECK_STACK(&td, 2);
3634                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3635                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3636                                 else
3637                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3638                                 --td.sp;
3639                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3640                                 ++td.ip;
3641                                 break;
3642                         case CEE_CLT:
3643                                 CHECK_STACK(&td, 2);
3644                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3645                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3646                                 else
3647                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3648                                 --td.sp;
3649                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3650                                 ++td.ip;
3651                                 break;
3652                         case CEE_CLT_UN:
3653                                 CHECK_STACK(&td, 2);
3654                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3655                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3656                                 else
3657                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3658                                 --td.sp;
3659                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3660                                 ++td.ip;
3661                                 break;
3662                         case CEE_LDVIRTFTN: /* fallthrough */
3663                         case CEE_LDFTN: {
3664                                 MonoMethod *m;
3665                                 if (*td.ip == CEE_LDVIRTFTN) {
3666                                         CHECK_STACK (&td, 1);
3667                                         --td.sp;
3668                                 }
3669                                 token = read32 (td.ip + 1);
3670                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3671                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3672                                 else
3673                                         m = mono_get_method_full (image, token, NULL, generic_context);
3674
3675                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3676                                         m = mono_marshal_get_synchronized_wrapper (m);
3677
3678                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3679                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3680                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3681                                 td.ip += 5;
3682                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3683                                 break;
3684                         }
3685                         case CEE_LDARG:
3686                                 load_arg (&td, read16 (td.ip + 1));
3687                                 td.ip += 3;
3688                                 break;
3689                         case CEE_LDARGA: {
3690                                 int n = read16 (td.ip + 1);
3691                                 ADD_CODE (&td, MINT_LDARGA);
3692                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3693                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3694                                 td.ip += 3;
3695                                 break;
3696                         }
3697                         case CEE_STARG:
3698                                 store_arg (&td, read16 (td.ip + 1));
3699                                 td.ip += 3;
3700                                 break;
3701                         case CEE_LDLOC:
3702                                 load_local (&td, read16 (td.ip + 1));
3703                                 td.ip += 3;
3704                                 break;
3705                         case CEE_LDLOCA:
3706                                 ADD_CODE(&td, MINT_LDLOCA_S);
3707                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3708                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3709                                 td.ip += 3;
3710                                 break;
3711                         case CEE_STLOC:
3712                                 store_local (&td, read16 (td.ip + 1));
3713                                 td.ip += 3;
3714                                 break;
3715                         case CEE_LOCALLOC:
3716                                 CHECK_STACK (&td, 1);
3717 #if SIZEOF_VOID_P == 8
3718                                 if (td.sp [-1].type == STACK_TYPE_I8)
3719                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3720 #endif
3721                                 ADD_CODE(&td, MINT_LOCALLOC);
3722                                 if (td.sp != td.stack + 1)
3723                                         g_warning("CEE_LOCALLOC: stack not empty");
3724                                 ++td.ip;
3725                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3726                                 break;
3727 #if 0
3728                         case CEE_UNUSED57: ves_abort(); break;
3729 #endif
3730                         case CEE_ENDFILTER:
3731                                 ADD_CODE (&td, MINT_ENDFILTER);
3732                                 ++td.ip;
3733                                 break;
3734                         case CEE_UNALIGNED_:
3735                                 td.ip += 2;
3736                                 break;
3737                         case CEE_VOLATILE_:
3738                                 ++td.ip;
3739                                 volatile_ = TRUE;
3740                                 break;
3741                         case CEE_TAIL_:
3742                                 ++td.ip;
3743                                 /* FIX: should do something? */;
3744                                 break;
3745                         case CEE_INITOBJ:
3746                                 CHECK_STACK(&td, 1);
3747                                 token = read32 (td.ip + 1);
3748                                 klass = mini_get_class (method, token, generic_context);
3749                                 if (klass->valuetype) {
3750                                         ADD_CODE (&td, MINT_INITOBJ);
3751                                         i32 = mono_class_value_size (klass, NULL);
3752                                         WRITE32 (&td, &i32);
3753                                 } else {
3754                                         ADD_CODE (&td, MINT_LDNULL);
3755                                         ADD_CODE (&td, MINT_STIND_REF);
3756                                 }
3757                                 td.ip += 5;
3758                                 --td.sp;
3759                                 break;
3760                         case CEE_CPBLK:
3761                                 CHECK_STACK(&td, 3);
3762                                 /* FIX? convert length to I8? */
3763                                 if (volatile_)
3764                                         ADD_CODE (&td, MINT_MONO_MEMORY_BARRIER);
3765                                 ADD_CODE(&td, MINT_CPBLK);
3766                                 BARRIER_IF_VOLATILE (&td);
3767                                 td.sp -= 3;
3768                                 ++td.ip;
3769                                 break;
3770                         case CEE_READONLY_:
3771                                 readonly = TRUE;
3772                                 td.ip += 1;
3773                                 break;
3774                         case CEE_CONSTRAINED_:
3775                                 token = read32 (td.ip + 1);
3776                                 constrained_class = mini_get_class (method, token, generic_context);
3777                                 mono_class_init (constrained_class);
3778                                 td.ip += 5;
3779                                 break;
3780                         case CEE_INITBLK:
3781                                 CHECK_STACK(&td, 3);
3782                                 BARRIER_IF_VOLATILE (td);
3783                                 ADD_CODE(&td, MINT_INITBLK);
3784                                 td.sp -= 3;
3785                                 td.ip += 1;
3786                                 break;
3787                         case CEE_NO_:
3788                                 /* FIXME: implement */
3789                                 td.ip += 2;
3790                                 break;
3791                         case CEE_RETHROW: {
3792                                 int clause_index = td.clause_indexes [in_offset];
3793                                 g_assert (clause_index != -1);
3794                                 SIMPLE_OP (td, MINT_RETHROW);
3795                                 ADD_CODE (&td, rtm->exvar_offsets [clause_index]);
3796                                 generating_code = 0;
3797                                 break;
3798                         }
3799                         case CEE_SIZEOF: {
3800                                 gint32 size;
3801                                 token = read32 (td.ip + 1);
3802                                 td.ip += 5;
3803                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3804                                         int align;
3805                                         MonoType *type = mono_type_create_from_typespec (image, token);
3806                                         size = mono_type_size (type, &align);
3807                                 } else {
3808                                         int align;
3809                                         MonoClass *szclass = mini_get_class (method, token, generic_context);
3810                                         mono_class_init (szclass);
3811 #if 0
3812                                         if (!szclass->valuetype)
3813                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3814 #endif
3815                                         size = mono_type_size (&szclass->byval_arg, &align);
3816                                 }
3817                                 ADD_CODE(&td, MINT_LDC_I4);
3818                                 WRITE32(&td, &size);
3819                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3820                                 break;
3821                         }
3822                         case CEE_REFANYTYPE:
3823                                 ADD_CODE (&td, MINT_REFANYTYPE);
3824                                 td.ip += 1;
3825                                 POP_VT (&td, sizeof (MonoTypedRef));
3826                                 PUSH_VT (&td, sizeof (gpointer));
3827                                 SET_TYPE(td.sp - 1, STACK_TYPE_VT, NULL);
3828                                 break;
3829                         default:
3830                                 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);
3831                         }
3832                         break;
3833                 default:
3834                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3835                 }
3836
3837                 if (td.new_ip - td.new_code != new_in_start_offset)
3838                         td.last_new_ip = td.new_code + new_in_start_offset;
3839                 else if (td.is_bb_start [td.in_start - td.il_code])
3840                         td.is_bb_start [td.ip - td.il_code] = 1;
3841
3842                 td.last_ip = td.in_start;
3843         }
3844
3845         /* Handle relocations */
3846         for (int i = 0; i < td.relocs->len; ++i) {
3847                 Reloc *reloc = g_ptr_array_index (td.relocs, i);
3848
3849                 int offset = td.in_offsets [reloc->target] - reloc->offset;
3850
3851                 switch (reloc->type) {
3852                 case RELOC_SHORT_BRANCH:
3853                         g_assert (td.new_code [reloc->offset + 1] == 0xffff);
3854                         td.new_code [reloc->offset + 1] = offset;
3855                         break;
3856                 case RELOC_LONG_BRANCH: {
3857                         guint16 *v = (guint16 *) &offset;
3858                         g_assert (td.new_code [reloc->offset + 1] == 0xbeef);
3859                         g_assert (td.new_code [reloc->offset + 2] == 0xdead);
3860                         td.new_code [reloc->offset + 1] = *(guint16 *) v;
3861                         td.new_code [reloc->offset + 2] = *(guint16 *) (v + 1);
3862                         break;
3863                 }
3864                 case RELOC_SWITCH: {
3865                         guint16 *v = (guint16*)&offset;
3866                         td.new_code [reloc->offset] = *(guint16*)v;
3867                         td.new_code [reloc->offset + 1] = *(guint16*)(v + 1);
3868                         break;
3869                 }
3870                 default:
3871                         g_assert_not_reached ();
3872                         break;
3873                 }
3874         }
3875
3876         if (td.verbose_level) {
3877                 const guint16 *p = td.new_code;
3878                 printf("Runtime method: %s %p, VT stack size: %d\n", mono_method_full_name (method, TRUE), rtm, td.max_vt_sp);
3879                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3880                 while (p < td.new_ip) {
3881                         p = mono_interp_dis_mintop(td.new_code, p);
3882                         printf("\n");
3883                 }
3884         }
3885         g_assert (td.max_stack_height <= (header->max_stack + 1));
3886
3887         int code_len = td.new_ip - td.new_code;
3888
3889         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3890         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3891         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3892         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3893         g_free (td.new_code);
3894         rtm->new_body_start = rtm->code + body_start_offset;
3895         rtm->num_clauses = header->num_clauses;
3896         for (i = 0; i < header->num_clauses; i++) {
3897                 MonoExceptionClause *c = rtm->clauses + i;
3898                 int end_off = c->try_offset + c->try_len;
3899                 c->try_offset = td.in_offsets [c->try_offset];
3900                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3901                 end_off = c->handler_offset + c->handler_len;
3902                 c->handler_offset = td.in_offsets [c->handler_offset];
3903                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3904                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3905                         c->data.filter_offset = td.in_offsets [c->data.filter_offset];
3906         }
3907         rtm->vt_stack_size = td.max_vt_sp;
3908         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3909         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3910         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3911
3912         /* Save debug info */
3913         interp_save_debug_info (rtm, header, &td, line_numbers);
3914
3915         /* Create a MonoJitInfo for the interpreted method by creating the interpreter IR as the native code. */
3916         int jinfo_len = mono_jit_info_size (0, header->num_clauses, 0);
3917         MonoJitInfo *jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, jinfo_len);
3918         jinfo->is_interp = 1;
3919         rtm->jinfo = jinfo;
3920         mono_jit_info_init (jinfo, method, (guint8*)rtm->code, code_len, 0, header->num_clauses, 0);
3921         for (i = 0; i < jinfo->num_clauses; ++i) {
3922                 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3923                 MonoExceptionClause *c = rtm->clauses + i;
3924
3925                 ei->flags = c->flags;
3926                 ei->try_start = (guint8*)(rtm->code + c->try_offset);
3927                 ei->try_end = (guint8*)(rtm->code + c->try_offset + c->try_len);
3928                 ei->handler_start = (guint8*)(rtm->code + c->handler_offset);
3929                 ei->exvar_offset = rtm->exvar_offsets [i];
3930                 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3931                         ei->data.filter = (guint8*)(rtm->code + c->data.filter_offset);
3932                 } else if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3933                 } else {
3934                         ei->data.catch_class = c->data.catch_class;
3935                 }
3936         }
3937
3938         save_seq_points (&td);
3939
3940         g_free (td.in_offsets);
3941         for (i = 0; i < header->code_size; ++i)
3942                 g_free (td.stack_state [i]);
3943         g_free (td.stack_state);
3944         g_free (td.stack_height);
3945         g_free (td.vt_stack_size);
3946         g_free (td.data_items);
3947         g_free (td.stack);
3948         g_hash_table_destroy (td.data_hash);
3949         g_free (td.clause_indexes);
3950         g_ptr_array_free (td.seq_points, TRUE);
3951         g_array_free (line_numbers, TRUE);
3952         g_ptr_array_free (td.relocs, TRUE);
3953         mono_mempool_destroy (td.mempool);
3954 }
3955
3956 static mono_mutex_t calc_section;
3957
3958 void
3959 mono_interp_transform_init (void)
3960 {
3961         mono_os_mutex_init_recursive(&calc_section);
3962 }
3963
3964 MonoException *
3965 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3966 {
3967         int i, align, size, offset;
3968         MonoMethod *method = runtime_method->method;
3969         MonoImage *image = method->klass->image;
3970         MonoMethodHeader *header = mono_method_get_header (method);
3971         MonoMethodSignature *signature = mono_method_signature (method);
3972         register const unsigned char *ip, *end;
3973         const MonoOpcode *opcode;
3974         MonoMethod *m;
3975         MonoClass *class;
3976         unsigned char *is_bb_start;
3977         int in;
3978         MonoVTable *method_class_vt;
3979         int backwards;
3980         MonoGenericContext *generic_context = NULL;
3981         MonoDomain *domain = runtime_method->domain;
3982
3983         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3984         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3985         if (!method_class_vt->initialized) {
3986                 MonoError error;
3987                 jmp_buf env;
3988                 MonoInvocation *last_env_frame = context->env_frame;
3989                 jmp_buf *old_env = context->current_env;
3990                 error_init (&error);
3991
3992                 if (setjmp(env)) {
3993                         MonoException *failed = context->env_frame->ex;
3994                         context->env_frame->ex = NULL;
3995                         context->env_frame = last_env_frame;
3996                         context->current_env = old_env;
3997                         return failed;
3998                 }
3999                 context->env_frame = context->current_frame;
4000                 context->current_env = &env;
4001                 mono_runtime_class_init_full (method_class_vt, &error);
4002                 if (!mono_error_ok (&error)) {
4003                         return mono_error_convert_to_exception (&error);
4004                 }
4005                 context->env_frame = last_env_frame;
4006                 context->current_env = old_env;
4007         }
4008
4009         mono_profiler_method_jit (method); /* sort of... */
4010
4011         if (mono_method_signature (method)->is_inflated)
4012                 generic_context = mono_method_get_context (method);
4013         else {
4014                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
4015                 if (generic_container)
4016                         generic_context = &generic_container->context;
4017         }
4018
4019         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4020                 MonoMethod *nm = NULL;
4021                 mono_os_mutex_lock(&calc_section);
4022                 if (runtime_method->transformed) {
4023                         mono_os_mutex_unlock(&calc_section);
4024                         mono_profiler_method_end_jit (method, runtime_method->jinfo, MONO_PROFILE_OK);
4025                         return NULL;
4026                 }
4027
4028                 /* assumes all internal calls with an array this are built in... */
4029                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
4030                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
4031                         signature = mono_method_signature (nm);
4032                 } else {
4033                         const char *name = method->name;
4034                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4035                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4036                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4037                                         g_assert (mi);
4038                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
4039                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
4040                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4041                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
4042                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4043                                         nm = mono_marshal_get_delegate_begin_invoke (method);
4044                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4045                                         nm = mono_marshal_get_delegate_end_invoke (method);
4046                                 }
4047                         }
4048                         if (nm == NULL) {
4049                                 runtime_method->code = g_malloc(sizeof(short));
4050                                 runtime_method->code[0] = MINT_CALLRUN;
4051                         }
4052                 }
4053                 if (nm == NULL) {
4054                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
4055                         runtime_method->alloca_size = runtime_method->stack_size;
4056                         runtime_method->transformed = TRUE;
4057                         mono_os_mutex_unlock(&calc_section);
4058                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
4059                         return NULL;
4060                 }
4061                 method = nm;
4062                 header = mono_method_get_header (nm);
4063                 mono_os_mutex_unlock(&calc_section);
4064         } else if (method->klass == mono_defaults.array_class) {
4065                 if (!strcmp (method->name, "UnsafeMov") || !strcmp (method->name, "UnsafeLoad")) {
4066                         mono_os_mutex_lock (&calc_section);
4067                         if (!runtime_method->transformed) {
4068                                 runtime_method->code = g_malloc (sizeof (short));
4069                                 runtime_method->code[0] = MINT_CALLRUN;
4070                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
4071                                 runtime_method->alloca_size = runtime_method->stack_size;
4072                                 runtime_method->transformed = TRUE;
4073                         }
4074                         mono_os_mutex_unlock(&calc_section);
4075                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
4076                         return NULL;
4077                 } else if (!strcmp (method->name, "UnsafeStore")) {
4078                         g_error ("TODO");
4079                 }
4080         }
4081         g_assert ((signature->param_count + signature->hasthis) < 1000);
4082         g_assert (header->max_stack < 10000);
4083         /* intern the strings in the method. */
4084         ip = header->code;
4085         end = ip + header->code_size;
4086
4087         is_bb_start = g_malloc0(header->code_size);
4088         is_bb_start [0] = 1;
4089         while (ip < end) {
4090                 in = *ip;
4091                 if (in == 0xfe) {
4092                         ip++;
4093                         in = *ip + 256;
4094                 }
4095                 else if (in == 0xf0) {
4096                         ip++;
4097                         in = *ip + MONO_CEE_MONO_ICALL;
4098                 }
4099                 opcode = &mono_opcodes [in];
4100                 switch (opcode->argument) {
4101                 case MonoInlineNone:
4102                         ++ip;
4103                         break;
4104                 case MonoInlineString:
4105                         if (method->wrapper_type == MONO_WRAPPER_NONE)
4106                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
4107                         ip += 5;
4108                         break;
4109                 case MonoInlineType:
4110                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
4111                                 class = mini_get_class (method, read32 (ip + 1), generic_context);
4112                                 mono_class_init (class);
4113                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
4114 #if 0
4115                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
4116                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
4117                                         mono_class_vtable (domain, class);
4118 #endif
4119                         }
4120                         ip += 5;
4121                         break;
4122                 case MonoInlineMethod:
4123                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
4124                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
4125                                 if (m == NULL) {
4126                                         g_free (is_bb_start);
4127                                         g_error ("FIXME: where to get method and class string?");
4128                                         return NULL;
4129                                         // return mono_get_exception_missing_method ();
4130                                 }
4131                                 mono_class_init (m->klass);
4132                                 if (!mono_class_is_interface (m->klass))
4133                                         mono_class_vtable (domain, m->klass);
4134                         }
4135                         ip += 5;
4136                         break;
4137                 case MonoInlineField:
4138                 case MonoInlineSig:
4139                 case MonoInlineI:
4140                 case MonoInlineTok:
4141                 case MonoShortInlineR:
4142                         ip += 5;
4143                         break;
4144                 case MonoInlineBrTarget:
4145                         offset = read32 (ip + 1);
4146                         ip += 5;
4147                         backwards = offset < 0;
4148                         offset += ip - header->code;
4149                         g_assert (offset >= 0 && offset < header->code_size);
4150                         is_bb_start [offset] |= backwards ? 2 : 1;
4151                         break;
4152                 case MonoShortInlineBrTarget:
4153                         offset = ((gint8 *)ip) [1];
4154                         ip += 2;
4155                         backwards = offset < 0;
4156                         offset += ip - header->code;
4157                         g_assert (offset >= 0 && offset < header->code_size);
4158                         is_bb_start [offset] |= backwards ? 2 : 1;
4159                         break;
4160                 case MonoInlineVar:
4161                         ip += 3;
4162                         break;
4163                 case MonoShortInlineVar:
4164                 case MonoShortInlineI:
4165                         ip += 2;
4166                         break;
4167                 case MonoInlineSwitch: {
4168                         guint32 n;
4169                         const unsigned char *next_ip;
4170                         ++ip;
4171                         n = read32 (ip);
4172                         ip += 4;
4173                         next_ip = ip + 4 * n;
4174                         for (i = 0; i < n; i++) {
4175                                 offset = read32 (ip);
4176                                 backwards = offset < 0;
4177                                 offset += next_ip - header->code;
4178                                 g_assert (offset >= 0 && offset < header->code_size);
4179                                 is_bb_start [offset] |= backwards ? 2 : 1;
4180                                 ip += 4;
4181                         }
4182                         break;
4183                 }
4184                 case MonoInlineR:
4185                 case MonoInlineI8:
4186                         ip += 9;
4187                         break;
4188                 default:
4189                         g_assert_not_reached ();
4190                 }
4191         }
4192         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
4193
4194         /* the rest needs to be locked so it is only done once */
4195         mono_os_mutex_lock(&calc_section);
4196         if (runtime_method->transformed) {
4197                 mono_os_mutex_unlock(&calc_section);
4198                 g_free (is_bb_start);
4199                 mono_profiler_method_end_jit (method, runtime_method->jinfo, MONO_PROFILE_OK);
4200                 return NULL;
4201         }
4202
4203         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
4204         runtime_method->stack_size = (sizeof (stackval)) * (header->max_stack + 2); /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
4205         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
4206         offset = 0;
4207         for (i = 0; i < header->num_locals; ++i) {
4208                 size = mono_type_size (header->locals [i], &align);
4209                 offset += align - 1;
4210                 offset &= ~(align - 1);
4211                 runtime_method->local_offsets [i] = offset;
4212                 offset += size;
4213         }
4214         offset = (offset + 7) & ~7;
4215
4216         runtime_method->exvar_offsets = g_malloc (header->num_clauses * sizeof (guint32));
4217         for (i = 0; i < header->num_clauses; i++) {
4218                 offset += sizeof (MonoObject*);
4219                 runtime_method->exvar_offsets [i] = offset;
4220         }
4221         offset = (offset + 7) & ~7;
4222
4223         runtime_method->locals_size = offset;
4224         g_assert (runtime_method->locals_size < 65536);
4225         offset = 0;
4226         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
4227
4228         if (signature->hasthis) {
4229                 g_assert (!signature->pinvoke);
4230                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
4231                 offset += align - 1;
4232                 offset &= ~(align - 1);
4233                 runtime_method->arg_offsets [0] = offset;
4234                 offset += size;
4235         }
4236
4237         for (i = 0; i < signature->param_count; ++i) {
4238                 if (signature->pinvoke) {
4239                         guint32 dummy;
4240                         size = mono_type_native_stack_size (signature->params [i], &dummy);
4241                         align = 8;
4242                 }
4243                 else
4244                         size = mono_type_stack_size (signature->params [i], &align);
4245                 offset += align - 1;
4246                 offset &= ~(align - 1);
4247                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
4248                 offset += size;
4249         }
4250         offset = (offset + 7) & ~7;
4251         runtime_method->args_size = offset;
4252         g_assert (runtime_method->args_size < 10000);
4253
4254         generate (method, runtime_method, is_bb_start, generic_context);
4255
4256         g_free (is_bb_start);
4257
4258         // FIXME: Add a different callback ?
4259         mono_profiler_method_end_jit (method, runtime_method->jinfo, MONO_PROFILE_OK);
4260         runtime_method->transformed = TRUE;
4261         mono_os_mutex_unlock(&calc_section);
4262
4263         return NULL;
4264 }
4265