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                 offset = 0xffff;
 205                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 206                         shorten_branch = 1;
 207
 208                 Reloc *reloc = mono_mempool_alloc0 (td->mempool, sizeof (Reloc));
 209                 if (shorten_branch)
 210                         reloc->type = RELOC_SHORT_BRANCH;
 211                 else
 212                         reloc->type = RELOC_LONG_BRANCH;
 213                 reloc->offset = td->new_ip - td->new_code;
 214                 reloc->target = target;
 215                 g_ptr_array_add (td->relocs, reloc);
 216         }
 217         if (shorten_branch) {
 218                 ADD_CODE(td, short_op);
 219                 ADD_CODE(td, offset);
 220         } else {
 221                 ADD_CODE(td, long_op);
 222                 ADD_CODE(td, * (unsigned short *)(&offset));
 223                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 224         }
 225 }
 226
 227 static void
 228 one_arg_branch(TransformData *td, int mint_op, int offset)
 229 {
 230         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 231         int long_op = mint_op + type - STACK_TYPE_I4;
 232         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 233         CHECK_STACK(td, 1);
 234         --td->sp;
 235         handle_branch (td, short_op, long_op, offset);
 236 }
 237
 238 static void
 239 two_arg_branch(TransformData *td, int mint_op, int offset)
 240 {
 241         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 242         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 243         int long_op = mint_op + type1 - STACK_TYPE_I4;
 244         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 245         CHECK_STACK(td, 2);
 246         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 247                 ADD_CODE(td, MINT_CONV_I8_I4);
 248                 td->in_offsets [td->ip - td->il_code]++;
 249         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 250                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 251                 td->in_offsets [td->ip - td->il_code]++;
 252         } else if (type1 != type2) {
 253                 g_warning("%s.%s: branch type mismatch %d %d",
 254                         td->method->klass->name, td->method->name,
 255                         td->sp [-1].type, td->sp [-2].type);
 256         }
 257         td->sp -= 2;
 258         handle_branch (td, short_op, long_op, offset);
 259 }
 260
 261 static void
 262 unary_arith_op(TransformData *td, int mint_op)
 263 {
 264         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 265         CHECK_STACK(td, 1);
 266         ADD_CODE(td, op);
 267 }
 268
 269 static void
 270 binary_arith_op(TransformData *td, int mint_op)
 271 {
 272         int type1 = td->sp [-2].type;
 273         int type2 = td->sp [-1].type;
 274         int op;
 275 #if SIZEOF_VOID_P == 8
 276         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 277                 ADD_CODE(td, MINT_CONV_I8_I4);
 278                 type2 = STACK_TYPE_I8;
 279         }
 280         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 281                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 282                 type1 = STACK_TYPE_I8;
 283                 td->sp [-2].type = STACK_TYPE_I8;
 284         }
 285 #endif
 286         if (type1 == STACK_TYPE_MP)
 287                 type1 = STACK_TYPE_I;
 288         if (type2 == STACK_TYPE_MP)
 289                 type2 = STACK_TYPE_I;
 290         if (type1 != type2) {
 291                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 292                         td->method->klass->name, td->method->name,
 293                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 294         }
 295         op = mint_op + type1 - STACK_TYPE_I4;
 296         CHECK_STACK(td, 2);
 297         ADD_CODE(td, op);
 298         --td->sp;
 299 }
 300
 301 static void
 302 shift_op(TransformData *td, int mint_op)
 303 {
 304         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 305         CHECK_STACK(td, 2);
 306         if (td->sp [-1].type != STACK_TYPE_I4) {
 307                 g_warning("%s.%s: shift type mismatch %d",
 308                         td->method->klass->name, td->method->name,
 309                         td->sp [-2].type);
 310         }
 311         ADD_CODE(td, op);
 312         --td->sp;
 313 }
 314
 315 static int
 316 mint_type(MonoType *type)
 317 {
 318         if (type->byref)
 319                 return MINT_TYPE_P;
 320 enum_type:
 321         switch (type->type) {
 322         case MONO_TYPE_I1:
 323                 return MINT_TYPE_I1;
 324         case MONO_TYPE_U1:
 325         case MONO_TYPE_BOOLEAN:
 326                 return MINT_TYPE_U1;
 327         case MONO_TYPE_I2:
 328                 return MINT_TYPE_I2;
 329         case MONO_TYPE_U2:
 330         case MONO_TYPE_CHAR:
 331                 return MINT_TYPE_U2;
 332         case MONO_TYPE_I4:
 333         case MONO_TYPE_U4:
 334                 return MINT_TYPE_I4;
 335         case MONO_TYPE_I:
 336         case MONO_TYPE_U:
 337 #if SIZEOF_VOID_P == 4
 338                 return MINT_TYPE_I4;
 339 #else
 340                 return MINT_TYPE_I8;
 341 #endif
 342         case MONO_TYPE_PTR:
 343                 return MINT_TYPE_P;
 344         case MONO_TYPE_R4:
 345                 return MINT_TYPE_R4;
 346         case MONO_TYPE_I8:
 347         case MONO_TYPE_U8:
 348                 return MINT_TYPE_I8;
 349         case MONO_TYPE_R8:
 350                 return MINT_TYPE_R8;
 351         case MONO_TYPE_STRING:
 352         case MONO_TYPE_SZARRAY:
 353         case MONO_TYPE_CLASS:
 354         case MONO_TYPE_OBJECT:
 355         case MONO_TYPE_ARRAY:
 356                 return MINT_TYPE_O;
 357         case MONO_TYPE_VALUETYPE:
 358                 if (type->data.klass->enumtype) {
 359                         type = mono_class_enum_basetype (type->data.klass);
 360                         goto enum_type;
 361                 } else
 362                         return MINT_TYPE_VT;
 363         case MONO_TYPE_TYPEDBYREF:
 364                 return MINT_TYPE_VT;
 365         case MONO_TYPE_GENERICINST:
 366                 type = &type->data.generic_class->container_class->byval_arg;
 367                 goto enum_type;
 368         default:
 369                 g_warning ("got type 0x%02x", type->type);
 370                 g_assert_not_reached ();
 371         }
 372         return -1;
 373 }
 374
 375 static int
 376 can_store (int stack_type, int var_type)
 377 {
 378         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 379                 stack_type = STACK_TYPE_I;
 380         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 381                 var_type = STACK_TYPE_I;
 382         return stack_type == var_type;
 383 }
 384
 385 #define SET_SIMPLE_TYPE(s, ty) \
 386         do { \
 387                 (s)->type = (ty); \
 388                 (s)->flags = 0; \
 389                 (s)->klass = NULL; \
 390         } while (0)
 391
 392 #define SET_TYPE(s, ty, k) \
 393         do { \
 394                 (s)->type = (ty); \
 395                 (s)->flags = 0; \
 396                 (s)->klass = k; \
 397         } while (0)
 398
 399 #define PUSH_SIMPLE_TYPE(td, ty) \
 400         do { \
 401                 int sp_height; \
 402                 (td)->sp++; \
 403                 sp_height = (td)->sp - (td)->stack; \
 404                 if (sp_height > (td)->max_stack_height) \
 405                         (td)->max_stack_height = sp_height; \
 406                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 407         } while (0)
 408
 409 #define PUSH_TYPE(td, ty, k) \
 410         do { \
 411                 int sp_height; \
 412                 (td)->sp++; \
 413                 sp_height = (td)->sp - (td)->stack; \
 414                 if (sp_height > (td)->max_stack_height) \
 415                         (td)->max_stack_height = sp_height; \
 416                 SET_TYPE((td)->sp - 1, ty, k); \
 417         } while (0)
 418
 419 #define PUSH_VT(td, size) \
 420         do { \
 421                 (td)->vt_sp += ((size) + 7) & ~7; \
 422                 if ((td)->vt_sp > (td)->max_vt_sp) \
 423                         (td)->max_vt_sp = (td)->vt_sp; \
 424         } while (0)
 425
 426 #define POP_VT(td, size) \
 427         do { \
 428                 (td)->vt_sp -= ((size) + 7) & ~7; \
 429         } while (0)
 430
 431 #if NO_UNALIGNED_ACCESS
 432 #define WRITE32(td, v) \
 433         do { \
 434                 ENSURE_CODE(td, 2); \
 435                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 436                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 437                 (td)->new_ip += 2; \
 438         } while (0)
 439
 440 #define WRITE64(td, v) \
 441         do { \
 442                 ENSURE_CODE(td, 4); \
 443                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 444                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 445                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 446                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 447                 (td)->new_ip += 4; \
 448         } while (0)
 449 #else
 450 #define WRITE32(td, v) \
 451         do { \
 452                 ENSURE_CODE(td, 2); \
 453                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 454                 (td)->new_ip += 2; \
 455         } while (0)
 456
 457 #define WRITE64(td, v) \
 458         do { \
 459                 ENSURE_CODE(td, 4); \
 460                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 461                 (td)->new_ip += 4; \
 462         } while (0)
 463
 464 #endif
 465
 466 static void
 467 load_arg(TransformData *td, int n)
 468 {
 469         int mt;
 470         MonoClass *klass = NULL;
 471         MonoType *type;
 472
 473         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 474         if (hasthis && n == 0)
 475                 type = &td->method->klass->byval_arg;
 476         else
 477                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 478
 479         mt = mint_type (type);
 480         if (mt == MINT_TYPE_VT) {
 481                 gint32 size;
 482                 klass = mono_class_from_mono_type (type);
 483                 if (mono_method_signature (td->method)->pinvoke)
 484                         size = mono_class_native_size (klass, NULL);
 485                 else
 486                         size = mono_class_value_size (klass, NULL);
 487
 488                 if (hasthis && n == 0) {
 489                         mt = MINT_TYPE_P;
 490                         ADD_CODE (td, MINT_LDARG_P);
 491                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 492                         klass = NULL;
 493                 } else {
 494                         PUSH_VT (td, size);
 495                         ADD_CODE (td, MINT_LDARG_VT);
 496                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 497                         WRITE32 (td, &size);
 498                 }
 499         } else {
 500                 if (hasthis && n == 0) {
 501                         mt = MINT_TYPE_P;
 502                         ADD_CODE (td, MINT_LDARG_P);
 503                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 504                         klass = NULL;
 505                 } else {
 506                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 507                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 508                         if (mt == MINT_TYPE_O)
 509                                 klass = mono_class_from_mono_type (type);
 510                 }
 511         }
 512         PUSH_TYPE(td, stack_type[mt], klass);
 513 }
 514
 515 static void
 516 store_arg(TransformData *td, int n)
 517 {
 518         int mt;
 519         CHECK_STACK (td, 1);
 520         MonoType *type;
 521
 522         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 523         if (hasthis && n == 0)
 524                 type = &td->method->klass->byval_arg;
 525         else
 526                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 527
 528         mt = mint_type (type);
 529         if (mt == MINT_TYPE_VT) {
 530                 gint32 size;
 531                 MonoClass *klass = mono_class_from_mono_type (type);
 532                 if (mono_method_signature (td->method)->pinvoke)
 533                         size = mono_class_native_size (klass, NULL);
 534                 else
 535                         size = mono_class_value_size (klass, NULL);
 536                 ADD_CODE(td, MINT_STARG_VT);
 537                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 538                 WRITE32(td, &size);
 539                 if (td->sp [-1].type == STACK_TYPE_VT)
 540                         POP_VT(td, size);
 541         } else {
 542                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 543                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 544         }
 545         --td->sp;
 546 }
 547
 548 static void
 549 store_inarg(TransformData *td, int n)
 550 {
 551         MonoType *type;
 552         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 553         if (hasthis && n == 0)
 554                 type = &td->method->klass->byval_arg;
 555         else
 556                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 557
 558         int mt = mint_type (type);
 559         if (hasthis && n == 0) {
 560                 ADD_CODE (td, MINT_STINARG_P);
 561                 ADD_CODE (td, n);
 562                 return;
 563         }
 564         if (mt == MINT_TYPE_VT) {
 565                 MonoClass *klass = mono_class_from_mono_type (type);
 566                 gint32 size;
 567                 if (mono_method_signature (td->method)->pinvoke)
 568                         size = mono_class_native_size (klass, NULL);
 569                 else
 570                         size = mono_class_value_size (klass, NULL);
 571                 ADD_CODE(td, MINT_STINARG_VT);
 572                 ADD_CODE(td, n);
 573                 WRITE32(td, &size);
 574         } else {
 575                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 576                 ADD_CODE(td, n);
 577         }
 578 }
 579
 580 static void
 581 load_local(TransformData *td, int n)
 582 {
 583         MonoType *type = td->header->locals [n];
 584         int mt = mint_type (type);
 585         int offset = td->rtm->local_offsets [n];
 586         MonoClass *klass = NULL;
 587         if (mt == MINT_TYPE_VT) {
 588                 klass = mono_class_from_mono_type (type);
 589                 gint32 size = mono_class_value_size (klass, NULL);
 590                 PUSH_VT(td, size);
 591                 ADD_CODE(td, MINT_LDLOC_VT);
 592                 ADD_CODE(td, offset); /*FIX for large offset */
 593                 WRITE32(td, &size);
 594         } else {
 595                 g_assert (mt < MINT_TYPE_VT);
 596                 if (!td->gen_sdb_seq_points &&
 597                         mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 598                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 599                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 600                 } else if (!td->gen_sdb_seq_points &&
 601                                    mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 602                                    td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 603                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 604                 } else {
 605                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 606                         ADD_CODE(td, offset); /*FIX for large offset */
 607                 }
 608                 if (mt == MINT_TYPE_O)
 609                         klass = mono_class_from_mono_type (type);
 610         }
 611         PUSH_TYPE(td, stack_type[mt], klass);
 612 }
 613
 614 static void
 615 store_local(TransformData *td, int n)
 616 {
 617         MonoType *type = td->header->locals [n];
 618         int mt = mint_type (type);
 619         int offset = td->rtm->local_offsets [n];
 620         CHECK_STACK (td, 1);
 621 #if SIZEOF_VOID_P == 8
 622         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 623                 ADD_CODE(td, MINT_CONV_I8_I4);
 624                 td->sp [-1].type = STACK_TYPE_I8;
 625         }
 626 #endif
 627         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 628                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 629                         td->method->klass->name, td->method->name,
 630                         stack_type [mt], td->sp [-1].type);
 631         }
 632         if (mt == MINT_TYPE_VT) {
 633                 MonoClass *klass = mono_class_from_mono_type (type);
 634                 gint32 size = mono_class_value_size (klass, NULL);
 635                 ADD_CODE(td, MINT_STLOC_VT);
 636                 ADD_CODE(td, offset); /*FIX for large offset */
 637                 WRITE32(td, &size);
 638                 if (td->sp [-1].type == STACK_TYPE_VT)
 639                         POP_VT(td, size);
 640         } else {
 641                 g_assert (mt < MINT_TYPE_VT);
 642                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 643                 ADD_CODE(td, offset); /*FIX for large offset */
 644         }
 645         --td->sp;
 646 }
 647
 648 #define SIMPLE_OP(td, op) \
 649         do { \
 650                 ADD_CODE(&td, op); \
 651                 ++td.ip; \
 652         } while (0)
 653
 654 static guint16
 655 get_data_item_index (TransformData *td, void *ptr)
 656 {
 657         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 658         guint index;
 659         if (p != NULL)
 660                 return GPOINTER_TO_UINT (p) - 1;
 661         if (td->max_data_items == td->n_data_items) {
 662                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 663                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 664         }
 665         index = td->n_data_items;
 666         td->data_items [index] = ptr;
 667         ++td->n_data_items;
 668         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 669         return index;
 670 }
 671
 672 static gboolean
 673 jit_call_supported (MonoMethod *method, MonoMethodSignature *sig)
 674 {
 675         GSList *l;
 676
 677         if (sig->param_count > 6)
 678                 return FALSE;
 679         if (sig->pinvoke)
 680                 return FALSE;
 681         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 682                 return FALSE;
 683         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
 684                 return FALSE;
 685         if (method->is_inflated)
 686                 return FALSE;
 687         if (method->string_ctor)
 688                 return FALSE;
 689
 690         for (l = jit_classes; l; l = l->next) {
 691                 char *class_name = l->data;
 692                 // FIXME: Namespaces
 693                 if (!strcmp (method->klass->name, class_name))
 694                         return TRUE;
 695         }
 696
 697         //return TRUE;
 698         return FALSE;
 699 }
 700
 701 static void
 702 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)
 703 {
 704         MonoImage *image = method->klass->image;
 705         MonoMethodSignature *csignature;
 706         MonoError error;
 707         int virtual = *td->ip == CEE_CALLVIRT;
 708         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 709         int i;
 710         guint32 vt_stack_used = 0;
 711         guint32 vt_res_size = 0;
 712         int op = -1;
 713         int native = 0;
 714         int is_void = 0;
 715
 716         guint32 token = read32 (td->ip + 1);
 717
 718         if (target_method == NULL) {
 719                 if (calli) {
 720                         CHECK_STACK(td, 1);
 721                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 722                         --td->sp;
 723                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 724                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 725                         else
 726                                 csignature = mono_metadata_parse_signature (image, token);
 727
 728                         if (generic_context) {
 729                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 730                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 731                         }
 732
 733                         target_method = NULL;
 734                 } else {
 735                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 736                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 737                         else
 738                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 739                         csignature = mono_method_signature (target_method);
 740
 741                         if (generic_context) {
 742                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 743                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 744                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 745                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 746                         }
 747                 }
 748         } else {
 749                 csignature = mono_method_signature (target_method);
 750         }
 751
 752         /* Intrinsics */
 753         if (target_method) {
 754                 if (target_method->klass == mono_defaults.string_class) {
 755                         if (target_method->name [0] == 'g') {
 756                                 if (strcmp (target_method->name, "get_Chars") == 0)
 757                                         op = MINT_GETCHR;
 758                                 else if (strcmp (target_method->name, "get_Length") == 0)
 759                                         op = MINT_STRLEN;
 760                         }
 761                 } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 762                         if (!strcmp (target_method->name, "get_Rank")) {
 763                                 op = MINT_ARRAY_RANK;
 764                         } else if (!strcmp (target_method->name, "get_Length")) {
 765                                 op = MINT_LDLEN;
 766                         } else if (!strcmp (target_method->name, "Address")) {
 767                                 op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 768                         }
 769                 } else if (target_method->klass->image == mono_defaults.corlib &&
 770                                    (strcmp (target_method->klass->name_space, "System.Diagnostics") == 0) &&
 771                                    (strcmp (target_method->klass->name, "Debugger") == 0)) {
 772                         if (!strcmp (target_method->name, "Break") && csignature->param_count == 0) {
 773                                 if (mini_should_insert_breakpoint (method))
 774                                         op = MINT_BREAK;
 775                         }
 776                 }
 777         }
 778
 779         if (constrained_class) {
 780                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 781                         /* Use the corresponding method from the base type to avoid boxing */
 782                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 783                         g_assert (base_type);
 784                         constrained_class = mono_class_from_mono_type (base_type);
 785                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 786                         g_assert (target_method);
 787                 }
 788         }
 789
 790         if (constrained_class) {
 791                 mono_class_setup_vtable (constrained_class);
 792 #if DEBUG_INTERP
 793                 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);
 794 #endif
 795                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 796 #if DEBUG_INTERP
 797                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 798 #endif
 799                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 800                 mono_class_setup_vtable (target_method->klass);
 801
 802                 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)) {
 803                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 804                                 /* managed pointer on the stack, we need to deref that puppy */
 805                                 ADD_CODE (td, MINT_LDIND_I);
 806                                 ADD_CODE (td, csignature->param_count);
 807                         }
 808                         ADD_CODE (td, MINT_BOX);
 809                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 810                         ADD_CODE (td, csignature->param_count);
 811                 } else if (!constrained_class->valuetype) {
 812                         /* managed pointer on the stack, we need to deref that puppy */
 813                         ADD_CODE (td, MINT_LDIND_I);
 814                         ADD_CODE (td, csignature->param_count);
 815                 } else {
 816                         if (target_method->klass->valuetype) {
 817                                 /* Own method */
 818                         } else {
 819                                 /* Interface method */
 820                                 int ioffset, slot;
 821
 822                                 mono_class_setup_vtable (constrained_class);
 823                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 824                                 if (ioffset == -1)
 825                                         g_error ("type load error: constrained_class");
 826                                 slot = mono_method_get_vtable_slot (target_method);
 827                                 if (slot == -1)
 828                                         g_error ("type load error: target_method->klass");
 829                                 target_method = constrained_class->vtable [ioffset + slot];
 830
 831                                 if (target_method->klass == mono_defaults.enum_class) {
 832                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 833                                                 /* managed pointer on the stack, we need to deref that puppy */
 834                                                 ADD_CODE (td, MINT_LDIND_I);
 835                                                 ADD_CODE (td, csignature->param_count);
 836                                         }
 837                                         ADD_CODE (td, MINT_BOX);
 838                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 839                                         ADD_CODE (td, csignature->param_count);
 840                                 }
 841                         }
 842                         virtual = FALSE;
 843                 }
 844         }
 845
 846         if (target_method)
 847                 mono_class_init (target_method->klass);
 848
 849         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 850         if (!calli && op == -1 && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 851                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 852                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0 &&
 853                 !(target_method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING)) {
 854                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 855                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 856
 857                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 858                         int offset;
 859                         if (td->verbose_level)
 860                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 861
 862                         for (i = csignature->param_count - 1 + !!csignature->hasthis; i >= 0; --i)
 863                                 store_arg (td, i);
 864
 865                         ADD_CODE(td, MINT_BR_S);
 866                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 867                         ADD_CODE(td, offset);
 868                         if (!is_bb_start [td->ip + 5 - td->il_code])
 869                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 870                         td->ip += 5;
 871                         return;
 872                 } else {
 873                         /* mheader might not exist if this is a delegate invoc, etc */
 874                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 875                                 if (td->verbose_level)
 876                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 877                                 for (i = 0; i < csignature->param_count; i++) {
 878                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 879                                         ADD_CODE (td, 0);
 880                                 }
 881                                 if (csignature->hasthis) {
 882                                         if (virtual)
 883                                                 ADD_CODE(td, MINT_CKNULL);
 884                                         ADD_CODE (td, MINT_POP);
 885                                         ADD_CODE (td, 0);
 886                                 }
 887                                 td->sp -= csignature->param_count + csignature->hasthis;
 888                                 td->ip += 5;
 889                                 return;
 890                         }
 891                 }
 892         }
 893         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 894                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 895                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 896                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 897                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 898         }
 899         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 900         td->sp -= csignature->param_count + !!csignature->hasthis;
 901         for (i = 0; i < csignature->param_count; ++i) {
 902                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 903                         gint32 size;
 904                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 905                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 906                                 size = mono_class_native_size (klass, NULL);
 907                         else
 908                                 size = mono_class_value_size (klass, NULL);
 909                         size = (size + 7) & ~7;
 910                         vt_stack_used += size;
 911                 }
 912         }
 913
 914         /* need to handle typedbyref ... */
 915         if (csignature->ret->type != MONO_TYPE_VOID) {
 916                 int mt = mint_type(csignature->ret);
 917                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 918                 if (mt == MINT_TYPE_VT) {
 919                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 920                                 vt_res_size = mono_class_native_size (klass, NULL);
 921                         else
 922                                 vt_res_size = mono_class_value_size (klass, NULL);
 923                         PUSH_VT(td, vt_res_size);
 924                 }
 925                 PUSH_TYPE(td, stack_type[mt], klass);
 926         } else
 927                 is_void = TRUE;
 928
 929         if (op >= 0) {
 930                 ADD_CODE (td, op);
 931 #if SIZEOF_VOID_P == 8
 932                 if (op == MINT_LDLEN)
 933                         ADD_CODE (td, MINT_CONV_I4_I8);
 934 #endif
 935                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 936                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 937                         ADD_CODE (td, 1 + target_method->klass->rank);
 938                 }
 939         } else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
 940                 ADD_CODE(td, MINT_JIT_CALL);
 941                 ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 942                 mono_error_assert_ok (&error);
 943         } else {
 944                 if (calli)
 945                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 946                 else if (virtual)
 947                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 948                 else
 949                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 950
 951                 if (calli) {
 952                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 953                 } else {
 954                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 955                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 956                 }
 957         }
 958         td->ip += 5;
 959         if (vt_stack_used != 0 || vt_res_size != 0) {
 960                 ADD_CODE(td, MINT_VTRESULT);
 961                 ADD_CODE(td, vt_res_size);
 962                 WRITE32(td, &vt_stack_used);
 963                 td->vt_sp -= vt_stack_used;
 964         }
 965 }
 966
 967 static MonoClassField *
 968 interp_field_from_token (MonoMethod *method, guint32 token, MonoClass **klass, MonoGenericContext *generic_context)
 969 {
 970         MonoClassField *field = NULL;
 971         if (method->wrapper_type != MONO_WRAPPER_NONE) {
 972                 field = (MonoClassField *) mono_method_get_wrapper_data (method, token);
 973                 *klass = field->parent;
 974         } else {
 975                 MonoError error;
 976                 error_init (&error);
 977                 field = mono_field_from_token_checked (method->klass->image, token, klass, generic_context, &error);
 978                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 979         }
 980         return field;
 981 }
 982
 983 static InterpBasicBlock*
 984 get_bb (TransformData *td, InterpBasicBlock *cbb, unsigned char *ip)
 985 {
 986         int offset = ip - td->il_code;
 987         InterpBasicBlock *bb = td->offset_to_bb [offset];
 988
 989         if (!bb) {
 990                 bb = mono_mempool_alloc0 (td->mempool, sizeof (InterpBasicBlock));
 991                 bb->ip = ip;
 992                 td->offset_to_bb [offset] = bb;
 993
 994                 td->basic_blocks = g_list_append_mempool (td->mempool, td->basic_blocks, bb);
 995         }
 996
 997         if (cbb)
 998                 bb->preds = g_slist_prepend_mempool (td->mempool, bb->preds, cbb);
 999         return bb;
1000 }
1001
1002 /*
1003  * get_basic_blocks:
1004  *
1005  *   Compute the set of IL level basic blocks.
1006  */
1007 static void
1008 get_basic_blocks (TransformData *td)
1009 {
1010         guint8 *start = (guint8*)td->il_code;
1011         guint8 *end = (guint8*)td->il_code + td->code_size;
1012         guint8 *ip = start;
1013         unsigned char *target;
1014         int i;
1015         guint cli_addr;
1016         const MonoOpcode *opcode;
1017         InterpBasicBlock *cbb;
1018
1019         td->offset_to_bb = mono_mempool_alloc0 (td->mempool, sizeof (InterpBasicBlock*) * (end - start + 1));
1020         td->entry_bb = cbb = get_bb (td, NULL, start);
1021
1022         while (ip < end) {
1023                 cli_addr = ip - start;
1024                 td->offset_to_bb [cli_addr] = cbb;
1025                 i = mono_opcode_value ((const guint8 **)&ip, end);
1026                 opcode = &mono_opcodes [i];
1027                 switch (opcode->argument) {
1028                 case MonoInlineNone:
1029                         ip++;
1030                         break;
1031                 case MonoInlineString:
1032                 case MonoInlineType:
1033                 case MonoInlineField:
1034                 case MonoInlineMethod:
1035                 case MonoInlineTok:
1036                 case MonoInlineSig:
1037                 case MonoShortInlineR:
1038                 case MonoInlineI:
1039                         ip += 5;
1040                         break;
1041                 case MonoInlineVar:
1042                         ip += 3;
1043                         break;
1044                 case MonoShortInlineVar:
1045                 case MonoShortInlineI:
1046                         ip += 2;
1047                         break;
1048                 case MonoShortInlineBrTarget:
1049                         target = start + cli_addr + 2 + (signed char)ip [1];
1050                         get_bb (td, cbb, target);
1051                         ip += 2;
1052                         cbb = get_bb (td, cbb, ip);
1053                         break;
1054                 case MonoInlineBrTarget:
1055                         target = start + cli_addr + 5 + (gint32)read32 (ip + 1);
1056                         get_bb (td, cbb, target);
1057                         ip += 5;
1058                         cbb = get_bb (td, cbb, ip);
1059                         break;
1060                 case MonoInlineSwitch: {
1061                         guint32 n = read32 (ip + 1);
1062                         guint32 j;
1063                         ip += 5;
1064                         cli_addr += 5 + 4 * n;
1065                         target = start + cli_addr;
1066                         get_bb (td, cbb, target);
1067
1068                         for (j = 0; j < n; ++j) {
1069                                 target = start + cli_addr + (gint32)read32 (ip);
1070                                 get_bb (td, cbb, target);
1071                                 ip += 4;
1072                         }
1073                         cbb = get_bb (td, cbb, ip);
1074                         break;
1075                 }
1076                 case MonoInlineR:
1077                 case MonoInlineI8:
1078                         ip += 9;
1079                         break;
1080                 default:
1081                         g_assert_not_reached ();
1082                 }
1083         }
1084 }
1085
1086 static void
1087 interp_save_debug_info (RuntimeMethod *rtm, MonoMethodHeader *header, TransformData *td, GArray *line_numbers)
1088 {
1089         MonoDebugMethodJitInfo *dinfo;
1090         int i;
1091
1092         if (!mono_debug_enabled ())
1093                 return;
1094
1095         /*
1096          * We save the debug info in the same way the JIT does it, treating the interpreter IR as the native code.
1097          */
1098
1099         dinfo = g_new0 (MonoDebugMethodJitInfo, 1);
1100         dinfo->num_params = rtm->param_count;
1101         dinfo->params = g_new0 (MonoDebugVarInfo, dinfo->num_params);
1102         dinfo->num_locals = header->num_locals;
1103         dinfo->locals = g_new0 (MonoDebugVarInfo, header->num_locals);
1104         dinfo->code_start = (guint8*)rtm->code;
1105         dinfo->code_size = td->new_ip - td->new_code;
1106         dinfo->epilogue_begin = 0;
1107         dinfo->has_var_info = TRUE;
1108         dinfo->num_line_numbers = line_numbers->len;
1109         dinfo->line_numbers = g_new0 (MonoDebugLineNumberEntry, dinfo->num_line_numbers);
1110
1111         for (i = 0; i < dinfo->num_params; i++) {
1112                 MonoDebugVarInfo *var = &dinfo->params [i];
1113                 var->type = rtm->param_types [i];
1114         }
1115         for (i = 0; i < dinfo->num_locals; i++) {
1116                 MonoDebugVarInfo *var = &dinfo->locals [i];
1117                 var->type = header->locals [i];
1118         }
1119
1120         for (i = 0; i < dinfo->num_line_numbers; i++)
1121                 dinfo->line_numbers [i] = g_array_index (line_numbers, MonoDebugLineNumberEntry, i);
1122         mono_debug_add_method (rtm->method, dinfo, mono_domain_get ());
1123
1124         mono_debug_free_method_jit_info (dinfo);
1125 }
1126
1127 /* Same as the code in seq-points.c */
1128 static void
1129 insert_pred_seq_point (SeqPoint *last_sp, SeqPoint *sp, GSList **next)
1130 {
1131         GSList *l;
1132         int src_index = last_sp->next_offset;
1133         int dst_index = sp->next_offset;
1134
1135         /* bb->in_bb might contain duplicates */
1136         for (l = next [src_index]; l; l = l->next)
1137                 if (GPOINTER_TO_UINT (l->data) == dst_index)
1138                         break;
1139         if (!l)
1140                 next [src_index] = g_slist_append (next [src_index], GUINT_TO_POINTER (dst_index));
1141 }
1142
1143 static void
1144 recursively_make_pred_seq_points (TransformData *td, InterpBasicBlock *bb)
1145 {
1146         const gpointer MONO_SEQ_SEEN_LOOP = GINT_TO_POINTER(-1);
1147         GSList *l;
1148
1149         GArray *predecessors = g_array_new (FALSE, TRUE, sizeof (gpointer));
1150         GHashTable *seen = g_hash_table_new_full (g_direct_hash, NULL, NULL, NULL);
1151
1152         // Insert/remove sentinel into the memoize table to detect loops containing bb
1153         bb->pred_seq_points = MONO_SEQ_SEEN_LOOP;
1154
1155         for (l = bb->preds; l; l = l->next) {
1156                 InterpBasicBlock *in_bb = l->data;
1157
1158                 // This bb has the last seq point, append it and continue
1159                 if (in_bb->last_seq_point != NULL) {
1160                         predecessors = g_array_append_val (predecessors, in_bb->last_seq_point);
1161                         continue;
1162                 }
1163
1164                 // We've looped or handled this before, exit early.
1165                 // No last sequence points to find.
1166                 if (in_bb->pred_seq_points == MONO_SEQ_SEEN_LOOP)
1167                         continue;
1168
1169                 // Take sequence points from incoming basic blocks
1170
1171                 if (in_bb == td->entry_bb)
1172                         continue;
1173
1174                 if (in_bb->pred_seq_points == NULL)
1175                         recursively_make_pred_seq_points (td, in_bb);
1176
1177                 // Union sequence points with incoming bb's
1178                 for (int i=0; i < in_bb->num_pred_seq_points; i++) {
1179                         if (!g_hash_table_lookup (seen, in_bb->pred_seq_points [i])) {
1180                                 g_array_append_val (predecessors, in_bb->pred_seq_points [i]);
1181                                 g_hash_table_insert (seen, in_bb->pred_seq_points [i], (gpointer)&MONO_SEQ_SEEN_LOOP);
1182                         }
1183                 }
1184                 // predecessors = g_array_append_vals (predecessors, in_bb->pred_seq_points, in_bb->num_pred_seq_points);
1185         }
1186
1187         g_hash_table_destroy (seen);
1188
1189         if (predecessors->len != 0) {
1190                 bb->pred_seq_points = mono_mempool_alloc0 (td->mempool, sizeof (SeqPoint *) * predecessors->len);
1191                 bb->num_pred_seq_points = predecessors->len;
1192
1193                 for (int newer = 0; newer < bb->num_pred_seq_points; newer++) {
1194                         bb->pred_seq_points [newer] = g_array_index (predecessors, gpointer, newer);
1195                 }
1196         }
1197
1198         g_array_free (predecessors, TRUE);
1199 }
1200
1201 static void
1202 collect_pred_seq_points (TransformData *td, InterpBasicBlock *bb, SeqPoint *seqp, GSList **next)
1203 {
1204         // Doesn't have a last sequence point, must find from incoming basic blocks
1205         if (bb->pred_seq_points == NULL && bb != td->entry_bb)
1206                 recursively_make_pred_seq_points (td, bb);
1207
1208         for (int i = 0; i < bb->num_pred_seq_points; i++)
1209                 insert_pred_seq_point (bb->pred_seq_points [i], seqp, next);
1210
1211         return;
1212 }
1213
1214 static void
1215 save_seq_points (TransformData *td)
1216 {
1217         RuntimeMethod *rtm = td->rtm;
1218         GByteArray *array;
1219         int i, seq_info_size;
1220         MonoSeqPointInfo *info;
1221         MonoDomain *domain = mono_domain_get ();
1222         GSList **next = NULL;
1223         GList *bblist;
1224
1225         if (!td->gen_sdb_seq_points)
1226                 return;
1227
1228         /*
1229          * For each sequence point, compute the list of sequence points immediately
1230          * following it, this is needed to implement 'step over' in the debugger agent.
1231          * Similar to the code in mono_save_seq_point_info ().
1232          */
1233         for (i = 0; i < td->seq_points->len; ++i) {
1234                 SeqPoint *sp = g_ptr_array_index (td->seq_points, i);
1235
1236                 /* Store the seq point index here temporarily */
1237                 sp->next_offset = i;
1238         }
1239         next = mono_mempool_alloc0 (td->mempool, sizeof (GList*) * td->seq_points->len);
1240         for (bblist = td->basic_blocks; bblist; bblist = bblist->next) {
1241                 InterpBasicBlock *bb = bblist->data;
1242
1243                 GSList *bb_seq_points = g_slist_reverse (bb->seq_points);
1244                 SeqPoint *last = NULL;
1245                 for (GSList *l = bb_seq_points; l; l = l->next) {
1246                         SeqPoint *sp = l->data;
1247
1248                         if (sp->il_offset == METHOD_ENTRY_IL_OFFSET || sp->il_offset == METHOD_EXIT_IL_OFFSET)
1249                                 /* Used to implement method entry/exit events */
1250                                 continue;
1251
1252                         if (last != NULL) {
1253                                 /* Link with the previous seq point in the same bb */
1254                                 next [last->next_offset] = g_slist_append_mempool (td->mempool, next [last->next_offset], GINT_TO_POINTER (sp->next_offset));
1255                         } else {
1256                                 /* Link with the last bb in the previous bblocks */
1257                                 collect_pred_seq_points (td, bb, sp, next);
1258                         }
1259                         last = sp;
1260                 }
1261         }
1262
1263         /* Serialize the seq points into a byte array */
1264         array = g_byte_array_new ();
1265         SeqPoint zero_seq_point = {0};
1266         SeqPoint* last_seq_point = &zero_seq_point;
1267         for (i = 0; i < td->seq_points->len; ++i) {
1268                 SeqPoint *sp = (SeqPoint*)g_ptr_array_index (td->seq_points, i);
1269
1270                 sp->next_offset = 0;
1271                 if (mono_seq_point_info_add_seq_point (array, sp, last_seq_point, next [i], TRUE))
1272                         last_seq_point = sp;
1273         }
1274
1275         if (td->verbose_level) {
1276                 g_print ("\nSEQ POINT MAP FOR %s: \n", td->method->name);
1277
1278                 for (i = 0; i < td->seq_points->len; ++i) {
1279                         SeqPoint *sp = (SeqPoint*)g_ptr_array_index (td->seq_points, i);
1280                         GSList *l;
1281
1282                         if (!next [i])
1283                                 continue;
1284
1285                         g_print ("\tIL0x%x[0x%0x] ->", sp->il_offset, sp->native_offset);
1286                         for (l = next [i]; l; l = l->next) {
1287                                 int next_index = GPOINTER_TO_UINT (l->data);
1288                                 g_print (" IL0x%x", ((SeqPoint*)g_ptr_array_index (td->seq_points, next_index))->il_offset);
1289                         }
1290                         g_print ("\n");
1291                 }
1292         }
1293
1294         info = mono_seq_point_info_new (array->len, TRUE, array->data, TRUE, &seq_info_size);
1295         mono_jit_stats.allocated_seq_points_size += seq_info_size;
1296
1297         g_byte_array_free (array, TRUE);
1298
1299         mono_domain_lock (domain);
1300         g_hash_table_insert (domain_jit_info (domain)->seq_points, rtm->method, info);
1301         mono_domain_unlock (domain);
1302 }
1303
1304 static void
1305 emit_seq_point (TransformData *td, int il_offset, InterpBasicBlock *cbb, gboolean nonempty_stack)
1306 {
1307         SeqPoint *seqp;
1308
1309         seqp = mono_mempool_alloc0 (td->mempool, sizeof (SeqPoint));
1310         seqp->il_offset = il_offset;
1311         seqp->native_offset = (guint8*)td->new_ip - (guint8*)td->new_code;
1312         if (nonempty_stack)
1313                 seqp->flags |= MONO_SEQ_POINT_FLAG_NONEMPTY_STACK;
1314
1315         ADD_CODE (td, MINT_SDB_SEQ_POINT);
1316         g_ptr_array_add (td->seq_points, seqp);
1317
1318         cbb->seq_points = g_slist_prepend_mempool (td->mempool, cbb->seq_points, seqp);
1319         cbb->last_seq_point = seqp;
1320 }
1321
1322 static void
1323 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
1324 {
1325         MonoMethodHeader *header = mono_method_get_header (method);
1326         MonoMethodSignature *signature = mono_method_signature (method);
1327         MonoImage *image = method->klass->image;
1328         MonoDomain *domain = mono_domain_get ();
1329         MonoClass *constrained_class = NULL;
1330         MonoError error;
1331         int offset, mt, i, i32;
1332         gboolean readonly = FALSE;
1333         MonoClass *klass;
1334         MonoClassField *field;
1335         const unsigned char *end;
1336         int new_in_start_offset;
1337         int body_start_offset;
1338         int target;
1339         guint32 token;
1340         TransformData td;
1341         int generating_code = 1;
1342         GArray *line_numbers;
1343         MonoDebugMethodInfo *minfo;
1344         MonoBitSet *seq_point_locs = NULL;
1345         MonoBitSet *seq_point_set_locs = NULL;
1346         gboolean sym_seq_points = FALSE;
1347         InterpBasicBlock *bb_exit = NULL;
1348         static gboolean verbose_method_inited;
1349         static char* verbose_method_name;
1350
1351         if (!verbose_method_inited) {
1352                 verbose_method_name = getenv ("MONO_VERBOSE_METHOD");
1353                 verbose_method_inited = TRUE;
1354         }
1355
1356         memset (&td, 0, sizeof(td));
1357         td.method = method;
1358         td.rtm = rtm;
1359         td.is_bb_start = is_bb_start;
1360         td.il_code = header->code;
1361         td.code_size = header->code_size;
1362         td.header = header;
1363         td.max_code_size = td.code_size;
1364         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
1365         td.new_code_end = td.new_code + td.max_code_size;
1366         td.mempool = mono_mempool_new ();
1367         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
1368         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
1369         td.stack_height = g_malloc(header->code_size * sizeof(int));
1370         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
1371         td.n_data_items = 0;
1372         td.max_data_items = 0;
1373         td.data_items = NULL;
1374         td.data_hash = g_hash_table_new (NULL, NULL);
1375         td.clause_indexes = g_malloc (header->code_size * sizeof (int));
1376         td.gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
1377         td.seq_points = g_ptr_array_new ();
1378         td.relocs = g_ptr_array_new ();
1379         td.verbose_level = mono_interp_traceopt;
1380         rtm->data_items = td.data_items;
1381         for (i = 0; i < header->code_size; i++) {
1382                 td.stack_height [i] = -1;
1383                 td.clause_indexes [i] = -1;
1384         }
1385
1386         if (verbose_method_name) {
1387                 const char *name = verbose_method_name;
1388
1389                 if ((strchr (name, '.') > name) || strchr (name, ':')) {
1390                         MonoMethodDesc *desc;
1391
1392                         desc = mono_method_desc_new (name, TRUE);
1393                         if (mono_method_desc_full_match (desc, method)) {
1394                                 td.verbose_level = 4;
1395                         }
1396                         mono_method_desc_free (desc);
1397                 } else {
1398                         if (strcmp (method->name, name) == 0)
1399                                 td.verbose_level = 4;
1400                 }
1401         }
1402
1403         if (td.gen_sdb_seq_points) {
1404                 get_basic_blocks (&td);
1405
1406                 minfo = mono_debug_lookup_method (method);
1407
1408                 if (minfo) {
1409                         MonoSymSeqPoint *sps;
1410                         int i, n_il_offsets;
1411
1412                         mono_debug_get_seq_points (minfo, NULL, NULL, NULL, &sps, &n_il_offsets);
1413                         // FIXME: Free
1414                         seq_point_locs = mono_bitset_mem_new (mono_mempool_alloc0 (td.mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
1415                         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);
1416                         sym_seq_points = TRUE;
1417
1418                         for (i = 0; i < n_il_offsets; ++i) {
1419                                 if (sps [i].il_offset < header->code_size)
1420                                         mono_bitset_set_fast (seq_point_locs, sps [i].il_offset);
1421                         }
1422                         g_free (sps);
1423                 } else if (!method->wrapper_type && !method->dynamic && mono_debug_image_has_debug_info (method->klass->image)) {
1424                         /* Methods without line number info like auto-generated property accessors */
1425                         seq_point_locs = mono_bitset_new (header->code_size, 0);
1426                         seq_point_set_locs = mono_bitset_new (header->code_size, 0);
1427                         sym_seq_points = TRUE;
1428                 }
1429         }
1430
1431         td.new_ip = td.new_code;
1432         td.last_new_ip = NULL;
1433
1434         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
1435         td.sp = td.stack;
1436         td.max_stack_height = 0;
1437
1438         line_numbers = g_array_new (FALSE, TRUE, sizeof (MonoDebugLineNumberEntry));
1439
1440         for (i = 0; i < header->num_clauses; i++) {
1441                 MonoExceptionClause *c = header->clauses + i;
1442                 td.stack_height [c->handler_offset] = 0;
1443                 td.vt_stack_size [c->handler_offset] = 0;
1444                 td.is_bb_start [c->handler_offset] = 1;
1445
1446                 td.stack_height [c->handler_offset] = 1;
1447                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
1448                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
1449                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
1450
1451                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
1452                         td.stack_height [c->data.filter_offset] = 0;
1453                         td.vt_stack_size [c->data.filter_offset] = 0;
1454                         td.is_bb_start [c->data.filter_offset] = 1;
1455
1456                         td.stack_height [c->data.filter_offset] = 1;
1457                         td.stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
1458                         td.stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
1459                         td.stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
1460                 }
1461
1462                 if ((c->flags & MONO_EXCEPTION_CLAUSE_FINALLY) || (c->flags & MONO_EXCEPTION_CLAUSE_FAULT)) {
1463                         for (int j = c->handler_offset; j < c->handler_offset + c->handler_len; ++j) {
1464                                 if (td.clause_indexes [j] == -1)
1465                                         td.clause_indexes [j] = i;
1466                         }
1467                 }
1468         }
1469
1470         td.ip = header->code;
1471         end = td.ip + header->code_size;
1472
1473         if (td.verbose_level) {
1474                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
1475                 char *name = mono_method_full_name (method, TRUE);
1476                 g_print ("Method %s, original code:\n", name);
1477                 g_print ("%s\n", tmp);
1478                 g_free (tmp);
1479                 g_free (name);
1480         }
1481
1482         if (signature->hasthis)
1483                 store_inarg (&td, 0);
1484         for (i = 0; i < signature->param_count; i++)
1485                 store_inarg (&td, i + !!signature->hasthis);
1486
1487         body_start_offset = td.new_ip - td.new_code;
1488
1489         for (i = 0; i < header->num_locals; i++) {
1490                 int mt = mint_type(header->locals [i]);
1491                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1492                         ADD_CODE(&td, MINT_INITLOCALS);
1493                         break;
1494                 }
1495         }
1496
1497         if (sym_seq_points) {
1498                 InterpBasicBlock *cbb = td.offset_to_bb [0];
1499                 g_assert (cbb);
1500                 emit_seq_point (&td, METHOD_ENTRY_IL_OFFSET, cbb, FALSE);
1501         }
1502
1503         while (td.ip < end) {
1504                 int in_offset;
1505
1506                 g_assert (td.sp >= td.stack);
1507                 g_assert (td.vt_sp < 0x10000000);
1508                 in_offset = td.ip - header->code;
1509                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
1510                 new_in_start_offset = td.new_ip - td.new_code;
1511                 td.in_start = td.ip;
1512
1513                 MonoDebugLineNumberEntry lne;
1514                 lne.native_offset = (guint8*)td.new_ip - (guint8*)td.new_code;
1515                 lne.il_offset = in_offset;
1516                 g_array_append_val (line_numbers, lne);
1517
1518                 if (td.stack_height [in_offset] >= 0) {
1519                         g_assert (is_bb_start [in_offset]);
1520                         if (td.stack_height [in_offset] > 0)
1521                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1522                         td.sp = td.stack + td.stack_height [in_offset];
1523                         td.vt_sp = td.vt_stack_size [in_offset];
1524                 }
1525                 if (is_bb_start [in_offset]) {
1526                         generating_code = 1;
1527                 }
1528                 if (!generating_code) {
1529                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1530                                 ++td.ip;
1531                         continue;
1532                 }
1533                 if (td.verbose_level > 1) {
1534                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1535                                 td.ip - td.il_code,
1536                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1537                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1538                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1539                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1540                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1541                                 (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) : "",
1542                                 td.vt_sp, td.max_vt_sp);
1543                 }
1544
1545                 if (sym_seq_points && mono_bitset_test_fast (seq_point_locs, td.ip - header->code)) {
1546                         InterpBasicBlock *cbb = td.offset_to_bb [td.ip - header->code];
1547                         g_assert (cbb);
1548
1549                         /*
1550                          * Make methods interruptable at the beginning, and at the targets of
1551                          * backward branches.
1552                          */
1553                         if (in_offset == 0 || g_slist_length (cbb->preds) > 1)
1554                                 ADD_CODE (&td, MINT_SDB_INTR_LOC);
1555
1556                         emit_seq_point (&td, in_offset, cbb, FALSE);
1557
1558                         mono_bitset_set_fast (seq_point_set_locs, td.ip - header->code);
1559                 }
1560
1561                 if (sym_seq_points)
1562                         bb_exit = td.offset_to_bb [td.ip - header->code];
1563
1564                 switch (*td.ip) {
1565                 case CEE_NOP:
1566                         /* lose it */
1567                         ++td.ip;
1568                         break;
1569                 case CEE_BREAK:
1570                         SIMPLE_OP(td, MINT_BREAK);
1571                         break;
1572                 case CEE_LDARG_0:
1573                 case CEE_LDARG_1:
1574                 case CEE_LDARG_2:
1575                 case CEE_LDARG_3:
1576                         load_arg (&td, *td.ip - CEE_LDARG_0);
1577                         ++td.ip;
1578                         break;
1579                 case CEE_LDLOC_0:
1580                 case CEE_LDLOC_1:
1581                 case CEE_LDLOC_2:
1582                 case CEE_LDLOC_3:
1583                         load_local (&td, *td.ip - CEE_LDLOC_0);
1584                         ++td.ip;
1585                         break;
1586                 case CEE_STLOC_0:
1587                 case CEE_STLOC_1:
1588                 case CEE_STLOC_2:
1589                 case CEE_STLOC_3:
1590                         store_local (&td, *td.ip - CEE_STLOC_0);
1591                         ++td.ip;
1592                         break;
1593                 case CEE_LDARG_S:
1594                         load_arg (&td, ((guint8 *)td.ip)[1]);
1595                         td.ip += 2;
1596                         break;
1597                 case CEE_LDARGA_S: {
1598                         /* NOTE: n includes this */
1599                         int n = ((guint8 *) td.ip) [1];
1600                         ADD_CODE (&td, MINT_LDARGA);
1601                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1602                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1603                         td.ip += 2;
1604                         break;
1605                 }
1606                 case CEE_STARG_S:
1607                         store_arg (&td, ((guint8 *)td.ip)[1]);
1608                         td.ip += 2;
1609                         break;
1610                 case CEE_LDLOC_S:
1611                         load_local (&td, ((guint8 *)td.ip)[1]);
1612                         td.ip += 2;
1613                         break;
1614                 case CEE_LDLOCA_S:
1615                         ADD_CODE(&td, MINT_LDLOCA_S);
1616                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1617                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1618                         td.ip += 2;
1619                         break;
1620                 case CEE_STLOC_S:
1621                         store_local (&td, ((guint8 *)td.ip)[1]);
1622                         td.ip += 2;
1623                         break;
1624                 case CEE_LDNULL:
1625                         SIMPLE_OP(td, MINT_LDNULL);
1626                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1627                         break;
1628                 case CEE_LDC_I4_M1:
1629                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1630                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1631                         break;
1632                 case CEE_LDC_I4_0:
1633                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1634                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1635                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1636                                 td.ip += 2;
1637                         } else {
1638                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1639                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1640                         }
1641                         break;
1642                 case CEE_LDC_I4_1:
1643                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1644                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1645                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1646                                 td.ip += 2;
1647                         } else {
1648                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1649                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1650                         }
1651                         break;
1652                 case CEE_LDC_I4_2:
1653                 case CEE_LDC_I4_3:
1654                 case CEE_LDC_I4_4:
1655                 case CEE_LDC_I4_5:
1656                 case CEE_LDC_I4_6:
1657                 case CEE_LDC_I4_7:
1658                 case CEE_LDC_I4_8:
1659                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1660                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1661                         break;
1662                 case CEE_LDC_I4_S:
1663                         ADD_CODE(&td, MINT_LDC_I4_S);
1664                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1665                         td.ip += 2;
1666                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1667                         break;
1668                 case CEE_LDC_I4:
1669                         i32 = read32 (td.ip + 1);
1670                         ADD_CODE(&td, MINT_LDC_I4);
1671                         WRITE32(&td, &i32);
1672                         td.ip += 5;
1673                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1674                         break;
1675                 case CEE_LDC_I8: {
1676                         gint64 val = read64 (td.ip + 1);
1677                         ADD_CODE(&td, MINT_LDC_I8);
1678                         WRITE64(&td, &val);
1679                         td.ip += 9;
1680                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1681                         break;
1682                 }
1683                 case CEE_LDC_R4: {
1684                         float val;
1685                         readr4 (td.ip + 1, &val);
1686                         ADD_CODE(&td, MINT_LDC_R4);
1687                         WRITE32(&td, &val);
1688                         td.ip += 5;
1689                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1690                         break;
1691                 }
1692                 case CEE_LDC_R8: {
1693                         double val;
1694                         readr8 (td.ip + 1, &val);
1695                         ADD_CODE(&td, MINT_LDC_R8);
1696                         WRITE64(&td, &val);
1697                         td.ip += 9;
1698                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1699                         break;
1700                 }
1701                 case CEE_DUP: {
1702                         int type = td.sp [-1].type;
1703                         MonoClass *klass = td.sp [-1].klass;
1704                         if (td.sp [-1].type == STACK_TYPE_VT) {
1705                                 gint32 size = mono_class_value_size (klass, NULL);
1706                                 PUSH_VT(&td, size);
1707                                 ADD_CODE(&td, MINT_DUP_VT);
1708                                 WRITE32(&td, &size);
1709                                 td.ip ++;
1710                         } else
1711                                 SIMPLE_OP(td, MINT_DUP);
1712                         PUSH_TYPE(&td, type, klass);
1713                         break;
1714                 }
1715                 case CEE_POP:
1716                         CHECK_STACK(&td, 1);
1717                         SIMPLE_OP(td, MINT_POP);
1718                         ADD_CODE (&td, 0);
1719                         if (td.sp [-1].type == STACK_TYPE_VT) {
1720                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1721                                 size = (size + 7) & ~7;
1722                                 ADD_CODE(&td, MINT_VTRESULT);
1723                                 ADD_CODE(&td, 0);
1724                                 WRITE32(&td, &size);
1725                                 td.vt_sp -= size;
1726                         }
1727                         --td.sp;
1728                         break;
1729                 case CEE_JMP: {
1730                         MonoMethod *m;
1731                         if (td.sp > td.stack)
1732                                 g_warning ("CEE_JMP: stack must be empty");
1733                         token = read32 (td.ip + 1);
1734                         m = mono_get_method_full (image, token, NULL, generic_context);
1735                         ADD_CODE (&td, MINT_JMP);
1736                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1737                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1738                         td.ip += 5;
1739                         break;
1740                 }
1741                 case CEE_CALLVIRT: /* Fall through */
1742                 case CEE_CALLI:    /* Fall through */
1743                 case CEE_CALL: {
1744                         gboolean need_seq_point = FALSE;
1745
1746                         if (sym_seq_points && !mono_bitset_test_fast (seq_point_locs, td.ip + 5 - header->code))
1747                                 need_seq_point = TRUE;
1748
1749                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1750
1751                         if (need_seq_point) {
1752                                 InterpBasicBlock *cbb = td.offset_to_bb [td.ip - header->code];
1753                                 g_assert (cbb);
1754
1755                                 emit_seq_point (&td, td.ip - header->code, cbb, TRUE);
1756                         }
1757
1758                         constrained_class = NULL;
1759                         readonly = FALSE;
1760                         break;
1761                 }
1762                 case CEE_RET: {
1763                         int vt_size = 0;
1764                         if (signature->ret->type != MONO_TYPE_VOID) {
1765                                 --td.sp;
1766                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1767                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1768                                         vt_size = mono_class_value_size (klass, NULL);
1769                                         vt_size = (vt_size + 7) & ~7;
1770                                 }
1771                         }
1772                         if (td.sp > td.stack)
1773                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1774                         if (td.vt_sp != vt_size)
1775                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1776
1777                         if (sym_seq_points) {
1778                                 InterpBasicBlock *cbb = td.offset_to_bb [td.ip - header->code];
1779                                 g_assert (cbb);
1780                                 emit_seq_point (&td, METHOD_EXIT_IL_OFFSET, bb_exit, FALSE);
1781                         }
1782
1783                         if (vt_size == 0)
1784                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1785                         else {
1786                                 ADD_CODE(&td, MINT_RET_VT);
1787                                 WRITE32(&td, &vt_size);
1788                                 ++td.ip;
1789                         }
1790                         generating_code = 0;
1791                         break;
1792                 }
1793                 case CEE_BR:
1794                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1795                         td.ip += 5;
1796                         generating_code = 0;
1797                         break;
1798                 case CEE_BR_S:
1799                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1800                         td.ip += 2;
1801                         generating_code = 0;
1802                         break;
1803                 case CEE_BRFALSE:
1804                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1805                         td.ip += 5;
1806                         break;
1807                 case CEE_BRFALSE_S:
1808                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1809                         td.ip += 2;
1810                         break;
1811                 case CEE_BRTRUE:
1812                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1813                         td.ip += 5;
1814                         break;
1815                 case CEE_BRTRUE_S:
1816                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1817                         td.ip += 2;
1818                         break;
1819                 case CEE_BEQ:
1820                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1821                         td.ip += 5;
1822                         break;
1823                 case CEE_BEQ_S:
1824                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1825                         td.ip += 2;
1826                         break;
1827                 case CEE_BGE:
1828                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1829                         td.ip += 5;
1830                         break;
1831                 case CEE_BGE_S:
1832                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1833                         td.ip += 2;
1834                         break;
1835                 case CEE_BGT:
1836                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1837                         td.ip += 5;
1838                         break;
1839                 case CEE_BGT_S:
1840                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1841                         td.ip += 2;
1842                         break;
1843                 case CEE_BLT:
1844                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1845                         td.ip += 5;
1846                         break;
1847                 case CEE_BLT_S:
1848                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1849                         td.ip += 2;
1850                         break;
1851                 case CEE_BLE:
1852                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1853                         td.ip += 5;
1854                         break;
1855                 case CEE_BLE_S:
1856                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1857                         td.ip += 2;
1858                         break;
1859                 case CEE_BNE_UN:
1860                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1861                         td.ip += 5;
1862                         break;
1863                 case CEE_BNE_UN_S:
1864                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1865                         td.ip += 2;
1866                         break;
1867                 case CEE_BGE_UN:
1868                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1869                         td.ip += 5;
1870                         break;
1871                 case CEE_BGE_UN_S:
1872                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1873                         td.ip += 2;
1874                         break;
1875                 case CEE_BGT_UN:
1876                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1877                         td.ip += 5;
1878                         break;
1879                 case CEE_BGT_UN_S:
1880                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1881                         td.ip += 2;
1882                         break;
1883                 case CEE_BLE_UN:
1884                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1885                         td.ip += 5;
1886                         break;
1887                 case CEE_BLE_UN_S:
1888                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1889                         td.ip += 2;
1890                         break;
1891                 case CEE_BLT_UN:
1892                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1893                         td.ip += 5;
1894                         break;
1895                 case CEE_BLT_UN_S:
1896                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1897                         td.ip += 2;
1898                         break;
1899                 case CEE_SWITCH: {
1900                         guint32 n;
1901                         const unsigned char *next_ip;
1902                         ++td.ip;
1903                         n = read32 (td.ip);
1904                         ADD_CODE (&td, MINT_SWITCH);
1905                         WRITE32 (&td, &n);
1906                         td.ip += 4;
1907                         next_ip = td.ip + n * 4;
1908                         --td.sp;
1909                         int stack_height = td.sp - td.stack;
1910                         for (i = 0; i < n; i++) {
1911                                 offset = read32 (td.ip);
1912                                 target = next_ip - td.il_code + offset;
1913                                 if (offset < 0) {
1914 #if DEBUG_INTERP
1915                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1916                                                 g_warning ("SWITCH with back branch and non-empty stack");
1917 #endif
1918                                         target = td.in_offsets [target] - (td.new_ip - td.new_code);
1919                                 } else {
1920                                         td.stack_height [target] = stack_height;
1921                                         td.vt_stack_size [target] = td.vt_sp;
1922                                         if (stack_height > 0)
1923                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1924
1925                                         Reloc *reloc = mono_mempool_alloc0 (td.mempool, sizeof (Reloc));
1926                                         reloc->type = RELOC_SWITCH;
1927                                         reloc->offset = td.new_ip - td.new_code;
1928                                         reloc->target = target;
1929                                         g_ptr_array_add (td.relocs, reloc);
1930                                         target = 0xffff;
1931                                 }
1932                                 WRITE32 (&td, &target);
1933                                 td.ip += 4;
1934                         }
1935                         break;
1936                 }
1937                 case CEE_LDIND_I1:
1938                         CHECK_STACK (&td, 1);
1939                         SIMPLE_OP (td, MINT_LDIND_I1);
1940                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1941                         break;
1942                 case CEE_LDIND_U1:
1943                         CHECK_STACK (&td, 1);
1944                         SIMPLE_OP (td, MINT_LDIND_U1);
1945                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1946                         break;
1947                 case CEE_LDIND_I2:
1948                         CHECK_STACK (&td, 1);
1949                         SIMPLE_OP (td, MINT_LDIND_I2);
1950                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1951                         break;
1952                 case CEE_LDIND_U2:
1953                         CHECK_STACK (&td, 1);
1954                         SIMPLE_OP (td, MINT_LDIND_U2);
1955                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1956                         break;
1957                 case CEE_LDIND_I4:
1958                         CHECK_STACK (&td, 1);
1959                         SIMPLE_OP (td, MINT_LDIND_I4);
1960                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1961                         break;
1962                 case CEE_LDIND_U4:
1963                         CHECK_STACK (&td, 1);
1964                         SIMPLE_OP (td, MINT_LDIND_U4);
1965                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1966                         break;
1967                 case CEE_LDIND_I8:
1968                         CHECK_STACK (&td, 1);
1969                         SIMPLE_OP (td, MINT_LDIND_I8);
1970                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1971                         break;
1972                 case CEE_LDIND_I:
1973                         CHECK_STACK (&td, 1);
1974                         SIMPLE_OP (td, MINT_LDIND_I);
1975                         ADD_CODE (&td, 0);
1976                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1977                         break;
1978                 case CEE_LDIND_R4:
1979                         CHECK_STACK (&td, 1);
1980                         SIMPLE_OP (td, MINT_LDIND_R4);
1981                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1982                         break;
1983                 case CEE_LDIND_R8:
1984                         CHECK_STACK (&td, 1);
1985                         SIMPLE_OP (td, MINT_LDIND_R8);
1986                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1987                         break;
1988                 case CEE_LDIND_REF:
1989                         CHECK_STACK (&td, 1);
1990                         SIMPLE_OP (td, MINT_LDIND_REF);
1991                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1992                         break;
1993                 case CEE_STIND_REF:
1994                         CHECK_STACK (&td, 2);
1995                         SIMPLE_OP (td, MINT_STIND_REF);
1996                         td.sp -= 2;
1997                         break;
1998                 case CEE_STIND_I1:
1999                         CHECK_STACK (&td, 2);
2000                         SIMPLE_OP (td, MINT_STIND_I1);
2001                         td.sp -= 2;
2002                         break;
2003                 case CEE_STIND_I2:
2004                         CHECK_STACK (&td, 2);
2005                         SIMPLE_OP (td, MINT_STIND_I2);
2006                         td.sp -= 2;
2007                         break;
2008                 case CEE_STIND_I4:
2009                         CHECK_STACK (&td, 2);
2010                         SIMPLE_OP (td, MINT_STIND_I4);
2011                         td.sp -= 2;
2012                         break;
2013                 case CEE_STIND_I:
2014                         CHECK_STACK (&td, 2);
2015                         SIMPLE_OP (td, MINT_STIND_I);
2016                         td.sp -= 2;
2017                         break;
2018                 case CEE_STIND_I8:
2019                         CHECK_STACK (&td, 2);
2020                         SIMPLE_OP (td, MINT_STIND_I8);
2021                         td.sp -= 2;
2022                         break;
2023                 case CEE_STIND_R4:
2024                         CHECK_STACK (&td, 2);
2025                         SIMPLE_OP (td, MINT_STIND_R4);
2026                         td.sp -= 2;
2027                         break;
2028                 case CEE_STIND_R8:
2029                         CHECK_STACK (&td, 2);
2030                         SIMPLE_OP (td, MINT_STIND_R8);
2031                         td.sp -= 2;
2032                         break;
2033                 case CEE_ADD:
2034                         binary_arith_op(&td, MINT_ADD_I4);
2035                         ++td.ip;
2036                         break;
2037                 case CEE_SUB:
2038                         binary_arith_op(&td, MINT_SUB_I4);
2039                         ++td.ip;
2040                         break;
2041                 case CEE_MUL:
2042                         binary_arith_op(&td, MINT_MUL_I4);
2043                         ++td.ip;
2044                         break;
2045                 case CEE_DIV:
2046                         binary_arith_op(&td, MINT_DIV_I4);
2047                         ++td.ip;
2048                         break;
2049                 case CEE_DIV_UN:
2050                         binary_arith_op(&td, MINT_DIV_UN_I4);
2051                         ++td.ip;
2052                         break;
2053                 case CEE_REM:
2054                         binary_arith_op (&td, MINT_REM_I4);
2055                         ++td.ip;
2056                         break;
2057                 case CEE_REM_UN:
2058                         binary_arith_op (&td, MINT_REM_UN_I4);
2059                         ++td.ip;
2060                         break;
2061                 case CEE_AND:
2062                         binary_arith_op (&td, MINT_AND_I4);
2063                         ++td.ip;
2064                         break;
2065                 case CEE_OR:
2066                         binary_arith_op (&td, MINT_OR_I4);
2067                         ++td.ip;
2068                         break;
2069                 case CEE_XOR:
2070                         binary_arith_op (&td, MINT_XOR_I4);
2071                         ++td.ip;
2072                         break;
2073                 case CEE_SHL:
2074                         shift_op (&td, MINT_SHL_I4);
2075                         ++td.ip;
2076                         break;
2077                 case CEE_SHR:
2078                         shift_op (&td, MINT_SHR_I4);
2079                         ++td.ip;
2080                         break;
2081                 case CEE_SHR_UN:
2082                         shift_op (&td, MINT_SHR_UN_I4);
2083                         ++td.ip;
2084                         break;
2085                 case CEE_NEG:
2086                         unary_arith_op (&td, MINT_NEG_I4);
2087                         ++td.ip;
2088                         break;
2089                 case CEE_NOT:
2090                         unary_arith_op (&td, MINT_NOT_I4);
2091                         ++td.ip;
2092                         break;
2093                 case CEE_CONV_U1:
2094                         CHECK_STACK (&td, 1);
2095                         switch (td.sp [-1].type) {
2096                         case STACK_TYPE_R8:
2097                                 ADD_CODE(&td, MINT_CONV_U1_R8);
2098                                 break;
2099                         case STACK_TYPE_I4:
2100                                 ADD_CODE(&td, MINT_CONV_U1_I4);
2101                                 break;
2102                         case STACK_TYPE_I8:
2103                                 ADD_CODE(&td, MINT_CONV_U1_I8);
2104                                 break;
2105                         default:
2106                                 g_assert_not_reached ();
2107                         }
2108                         ++td.ip;
2109                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2110                         break;
2111                 case CEE_CONV_I1:
2112                         CHECK_STACK (&td, 1);
2113                         switch (td.sp [-1].type) {
2114                         case STACK_TYPE_R8:
2115                                 ADD_CODE(&td, MINT_CONV_I1_R8);
2116                                 break;
2117                         case STACK_TYPE_I4:
2118                                 ADD_CODE(&td, MINT_CONV_I1_I4);
2119                                 break;
2120                         case STACK_TYPE_I8:
2121                                 ADD_CODE(&td, MINT_CONV_I1_I8);
2122                                 break;
2123                         default:
2124                                 g_assert_not_reached ();
2125                         }
2126                         ++td.ip;
2127                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2128                         break;
2129                 case CEE_CONV_U2:
2130                         CHECK_STACK (&td, 1);
2131                         switch (td.sp [-1].type) {
2132                         case STACK_TYPE_R8:
2133                                 ADD_CODE(&td, MINT_CONV_U2_R8);
2134                                 break;
2135                         case STACK_TYPE_I4:
2136                                 ADD_CODE(&td, MINT_CONV_U2_I4);
2137                                 break;
2138                         case STACK_TYPE_I8:
2139                                 ADD_CODE(&td, MINT_CONV_U2_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_I2:
2148                         CHECK_STACK (&td, 1);
2149                         switch (td.sp [-1].type) {
2150                         case STACK_TYPE_R8:
2151                                 ADD_CODE(&td, MINT_CONV_I2_R8);
2152                                 break;
2153                         case STACK_TYPE_I4:
2154                                 ADD_CODE(&td, MINT_CONV_I2_I4);
2155                                 break;
2156                         case STACK_TYPE_I8:
2157                                 ADD_CODE(&td, MINT_CONV_I2_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_U:
2166                         CHECK_STACK (&td, 1);
2167                         switch (td.sp [-1].type) {
2168                         case STACK_TYPE_R8:
2169 #if SIZEOF_VOID_P == 4
2170                                 ADD_CODE(&td, MINT_CONV_U4_R8);
2171 #else
2172                                 ADD_CODE(&td, MINT_CONV_U8_R8);
2173 #endif
2174                                 break;
2175                         case STACK_TYPE_I4:
2176 #if SIZEOF_VOID_P == 8
2177                                 ADD_CODE(&td, MINT_CONV_U8_I4);
2178 #endif
2179                                 break;
2180                         case STACK_TYPE_I8:
2181 #if SIZEOF_VOID_P == 4
2182                                 ADD_CODE(&td, MINT_CONV_U4_I8);
2183 #endif
2184                                 break;
2185                         case STACK_TYPE_MP:
2186                                 break;
2187                         default:
2188                                 g_assert_not_reached ();
2189                         }
2190                         ++td.ip;
2191                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2192                         break;
2193                 case CEE_CONV_I:
2194                         CHECK_STACK (&td, 1);
2195                         switch (td.sp [-1].type) {
2196                         case STACK_TYPE_R8:
2197 #if SIZEOF_VOID_P == 8
2198                                 ADD_CODE(&td, MINT_CONV_I8_R8);
2199 #else
2200                                 ADD_CODE(&td, MINT_CONV_I4_R8);
2201 #endif
2202                                 break;
2203                         case STACK_TYPE_I4:
2204 #if SIZEOF_VOID_P == 8
2205                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2206 #endif
2207                                 break;
2208                         case STACK_TYPE_O:
2209                                 break;
2210                         case STACK_TYPE_MP:
2211                                 break;
2212                         case STACK_TYPE_I8:
2213 #if SIZEOF_VOID_P == 4
2214                                 ADD_CODE(&td, MINT_CONV_I4_I8);
2215 #endif
2216                                 break;
2217                         default:
2218                                 g_assert_not_reached ();
2219                         }
2220                         ++td.ip;
2221                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2222                         break;
2223                 case CEE_CONV_U4:
2224                         CHECK_STACK (&td, 1);
2225                         switch (td.sp [-1].type) {
2226                         case STACK_TYPE_R8:
2227                                 ADD_CODE(&td, MINT_CONV_U4_R8);
2228                                 break;
2229                         case STACK_TYPE_I4:
2230                                 break;
2231                         case STACK_TYPE_I8:
2232                                 ADD_CODE(&td, MINT_CONV_U4_I8);
2233                                 break;
2234                         case STACK_TYPE_MP:
2235 #if SIZEOF_VOID_P == 8
2236                                 ADD_CODE(&td, MINT_CONV_U4_I8);
2237 #endif
2238                                 break;
2239                         default:
2240                                 g_assert_not_reached ();
2241                         }
2242                         ++td.ip;
2243                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2244                         break;
2245                 case CEE_CONV_I4:
2246                         CHECK_STACK (&td, 1);
2247                         switch (td.sp [-1].type) {
2248                         case STACK_TYPE_R8:
2249                                 ADD_CODE(&td, MINT_CONV_I4_R8);
2250                                 break;
2251                         case STACK_TYPE_I4:
2252                                 break;
2253                         case STACK_TYPE_I8:
2254                                 ADD_CODE(&td, MINT_CONV_I4_I8);
2255                                 break;
2256                         case STACK_TYPE_MP:
2257 #if SIZEOF_VOID_P == 8
2258                                 ADD_CODE(&td, MINT_CONV_I4_I8);
2259 #endif
2260                                 break;
2261                         default:
2262                                 g_assert_not_reached ();
2263                         }
2264                         ++td.ip;
2265                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2266                         break;
2267                 case CEE_CONV_I8:
2268                         CHECK_STACK (&td, 1);
2269                         switch (td.sp [-1].type) {
2270                         case STACK_TYPE_R8:
2271                                 ADD_CODE(&td, MINT_CONV_I8_R8);
2272                                 break;
2273                         case STACK_TYPE_I4:
2274                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2275                                 break;
2276                         case STACK_TYPE_I8:
2277                                 break;
2278                         case STACK_TYPE_MP:
2279 #if SIZEOF_VOID_P == 4
2280                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2281 #endif
2282                                 break;
2283                         default:
2284                                 g_assert_not_reached ();
2285                         }
2286                         ++td.ip;
2287                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2288                         break;
2289                 case CEE_CONV_R4:
2290                         CHECK_STACK (&td, 1);
2291                         switch (td.sp [-1].type) {
2292                         case STACK_TYPE_R8:
2293                                 ADD_CODE(&td, MINT_CONV_R4_R8);
2294                                 break;
2295                         case STACK_TYPE_I8:
2296                                 ADD_CODE(&td, MINT_CONV_R4_I8);
2297                                 break;
2298                         case STACK_TYPE_I4:
2299                                 ADD_CODE(&td, MINT_CONV_R4_I4);
2300                                 break;
2301                         default:
2302                                 g_assert_not_reached ();
2303                         }
2304                         ++td.ip;
2305                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2306                         break;
2307                 case CEE_CONV_R8:
2308                         CHECK_STACK (&td, 1);
2309                         switch (td.sp [-1].type) {
2310                         case STACK_TYPE_I4:
2311                                 ADD_CODE(&td, MINT_CONV_R8_I4);
2312                                 break;
2313                         case STACK_TYPE_I8:
2314                                 ADD_CODE(&td, MINT_CONV_R8_I8);
2315                                 break;
2316                         case STACK_TYPE_R8:
2317                                 break;
2318                         default:
2319                                 g_assert_not_reached ();
2320                         }
2321                         ++td.ip;
2322                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2323                         break;
2324                 case CEE_CONV_U8:
2325                         CHECK_STACK (&td, 1);
2326                         switch (td.sp [-1].type) {
2327                         case STACK_TYPE_I4:
2328                                 ADD_CODE(&td, MINT_CONV_U8_I4);
2329                                 break;
2330                         case STACK_TYPE_I8:
2331                                 break;
2332                         case STACK_TYPE_R8:
2333                                 ADD_CODE(&td, MINT_CONV_U8_R8);
2334                                 break;
2335                         case STACK_TYPE_MP:
2336 #if SIZEOF_VOID_P == 4
2337                                 ADD_CODE(&td, MINT_CONV_U8_I4);
2338 #endif
2339                                 break;
2340                         default:
2341                                 g_assert_not_reached ();
2342                         }
2343                         ++td.ip;
2344                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2345                         break;
2346                 case CEE_CPOBJ: {
2347                         CHECK_STACK (&td, 2);
2348
2349                         token = read32 (td.ip + 1);
2350                         klass = mono_class_get_full (image, token, generic_context);
2351
2352                         if (klass->valuetype) {
2353                                 ADD_CODE (&td, MINT_CPOBJ);
2354                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2355                         } else {
2356                                 ADD_CODE (&td, MINT_LDIND_REF);
2357                                 ADD_CODE (&td, MINT_STIND_REF);
2358                         }
2359                         td.ip += 5;
2360                         td.sp -= 2;
2361                         break;
2362                 }
2363                 case CEE_LDOBJ: {
2364                         int size;
2365                         CHECK_STACK (&td, 1);
2366
2367                         token = read32 (td.ip + 1);
2368
2369                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2370                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2371                         else
2372                                 klass = mono_class_get_full (image, token, generic_context);
2373
2374                         ADD_CODE(&td, MINT_LDOBJ);
2375                         ADD_CODE(&td, get_data_item_index(&td, klass));
2376                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2377                                 size = mono_class_value_size (klass, NULL);
2378                                 PUSH_VT(&td, size);
2379                         }
2380                         td.ip += 5;
2381                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
2382                         break;
2383                 }
2384                 case CEE_LDSTR: {
2385                         MonoString *s;
2386                         token = mono_metadata_token_index (read32 (td.ip + 1));
2387                         td.ip += 5;
2388                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
2389                                 s = mono_method_get_wrapper_data (method, token);
2390                         } else if (method->wrapper_type != MONO_WRAPPER_NONE) {
2391                                 s = mono_string_new_wrapper (mono_method_get_wrapper_data (method, token));
2392                         } else {
2393                                 s = mono_ldstr (domain, image, token);
2394                         }
2395                         ADD_CODE(&td, MINT_LDSTR);
2396                         ADD_CODE(&td, get_data_item_index (&td, s));
2397                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
2398                         break;
2399                 }
2400                 case CEE_NEWOBJ: {
2401                         MonoMethod *m;
2402                         MonoMethodSignature *csignature;
2403                         guint32 vt_stack_used = 0;
2404                         guint32 vt_res_size = 0;
2405
2406                         td.ip++;
2407                         token = read32 (td.ip);
2408                         td.ip += 4;
2409
2410                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2411                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
2412                         else
2413                                 m = mono_get_method_full (image, token, NULL, generic_context);
2414
2415                         csignature = mono_method_signature (m);
2416                         klass = m->klass;
2417                         td.sp -= csignature->param_count;
2418                         ADD_CODE(&td, MINT_NEWOBJ);
2419                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
2420                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2421
2422                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
2423                                 vt_res_size = mono_class_value_size (klass, NULL);
2424                                 PUSH_VT (&td, vt_res_size);
2425                         }
2426                         for (i = 0; i < csignature->param_count; ++i) {
2427                                 int mt = mint_type(csignature->params [i]);
2428                                 if (mt == MINT_TYPE_VT) {
2429                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
2430                                         gint32 size = mono_class_value_size (k, NULL);
2431                                         size = (size + 7) & ~7;
2432                                         vt_stack_used += size;
2433                                 }
2434                         }
2435                         if (vt_stack_used != 0 || vt_res_size != 0) {
2436                                 ADD_CODE(&td, MINT_VTRESULT);
2437                                 ADD_CODE(&td, vt_res_size);
2438                                 WRITE32(&td, &vt_stack_used);
2439                                 td.vt_sp -= vt_stack_used;
2440                         }
2441                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
2442                         break;
2443                 }
2444                 case CEE_CASTCLASS:
2445                         CHECK_STACK (&td, 1);
2446                         token = read32 (td.ip + 1);
2447                         klass = mini_get_class (method, token, generic_context);
2448                         ADD_CODE(&td, MINT_CASTCLASS);
2449                         ADD_CODE(&td, get_data_item_index (&td, klass));
2450                         td.sp [-1].klass = klass;
2451                         td.ip += 5;
2452                         break;
2453                 case CEE_ISINST:
2454                         CHECK_STACK (&td, 1);
2455                         token = read32 (td.ip + 1);
2456                         klass = mini_get_class (method, token, generic_context);
2457                         ADD_CODE(&td, MINT_ISINST);
2458                         ADD_CODE(&td, get_data_item_index (&td, klass));
2459                         td.ip += 5;
2460                         break;
2461                 case CEE_CONV_R_UN:
2462                         switch (td.sp [-1].type) {
2463                         case STACK_TYPE_R8:
2464                                 break;
2465                         case STACK_TYPE_I8:
2466                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
2467                                 break;
2468                         case STACK_TYPE_I4:
2469                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
2470                                 break;
2471                         default:
2472                                 g_assert_not_reached ();
2473                         }
2474                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2475                         ++td.ip;
2476                         break;
2477                 case CEE_UNBOX:
2478                         CHECK_STACK (&td, 1);
2479                         token = read32 (td.ip + 1);
2480
2481                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2482                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2483                         else
2484                                 klass = mono_class_get_full (image, token, generic_context);
2485
2486                         if (mono_class_is_nullable (klass)) {
2487                                 g_error ("cee_unbox: implement Nullable");
2488                         }
2489
2490                         ADD_CODE(&td, MINT_UNBOX);
2491                         ADD_CODE(&td, get_data_item_index (&td, klass));
2492                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2493                         td.ip += 5;
2494                         break;
2495                 case CEE_UNBOX_ANY:
2496                         CHECK_STACK (&td, 1);
2497                         token = read32 (td.ip + 1);
2498
2499                         klass = mini_get_class (method, token, generic_context);
2500
2501                         if (mini_type_is_reference (&klass->byval_arg)) {
2502                                 int mt = mint_type (&klass->byval_arg);
2503                                 ADD_CODE (&td, MINT_CASTCLASS);
2504                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2505                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2506                                 td.ip += 5;
2507                         } else if (mono_class_is_nullable (klass)) {
2508                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2509                                 /* td.ip is incremented by interp_transform_call */
2510                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2511                         } else {
2512                                 int mt = mint_type (&klass->byval_arg);
2513                                 ADD_CODE (&td, MINT_UNBOX);
2514                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2515
2516                                 ADD_CODE (&td, MINT_LDOBJ);
2517                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2518                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2519
2520                                 if (mt == MINT_TYPE_VT) {
2521                                         int size = mono_class_value_size (klass, NULL);
2522                                         PUSH_VT (&td, size);
2523                                 }
2524                                 td.ip += 5;
2525                         }
2526
2527                         break;
2528                 case CEE_THROW:
2529                         CHECK_STACK (&td, 1);
2530                         SIMPLE_OP (td, MINT_THROW);
2531                         --td.sp;
2532                         generating_code = 0;
2533                         break;
2534                 case CEE_LDFLDA:
2535                         CHECK_STACK (&td, 1);
2536                         token = read32 (td.ip + 1);
2537                         field = interp_field_from_token (method, token, &klass, generic_context);
2538                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2539                         mono_class_init (klass);
2540                         if (is_static) {
2541                                 ADD_CODE (&td, MINT_POP);
2542                                 ADD_CODE (&td, 0);
2543                                 ADD_CODE (&td, MINT_LDSFLDA);
2544                                 ADD_CODE (&td, get_data_item_index (&td, field));
2545                         } else {
2546                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2547                                         ADD_CODE (&td, MINT_LDFLDA);
2548                                 } else {
2549                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2550                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2551                                 }
2552                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2553                         }
2554                         td.ip += 5;
2555                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2556                         break;
2557                 case CEE_LDFLD: {
2558                         CHECK_STACK (&td, 1);
2559                         token = read32 (td.ip + 1);
2560                         field = interp_field_from_token (method, token, &klass, generic_context);
2561                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2562                         mono_class_init (klass);
2563
2564                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2565                         mt = mint_type (&field_klass->byval_arg);
2566                         if (klass->marshalbyref) {
2567                                 g_assert (!is_static);
2568                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2569                                 ADD_CODE(&td, get_data_item_index (&td, field));
2570                         } else  {
2571                                 if (is_static) {
2572                                         ADD_CODE (&td, MINT_POP);
2573                                         ADD_CODE (&td, 0);
2574                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2575                                         ADD_CODE (&td, get_data_item_index (&td, field));
2576                                 } else {
2577                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2578                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2579                                 }
2580                         }
2581                         if (mt == MINT_TYPE_VT) {
2582                                 int size = mono_class_value_size (field_klass, NULL);
2583                                 PUSH_VT(&td, size);
2584                                 WRITE32(&td, &size);
2585                         }
2586                         if (td.sp [-1].type == STACK_TYPE_VT) {
2587                                 int size = mono_class_value_size (klass, NULL);
2588                                 size = (size + 7) & ~7;
2589                                 td.vt_sp -= size;
2590                                 ADD_CODE (&td, MINT_VTRESULT);
2591                                 ADD_CODE (&td, 0);
2592                                 WRITE32 (&td, &size);
2593                         }
2594                         td.ip += 5;
2595                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2596                         break;
2597                 }
2598                 case CEE_STFLD: {
2599                         CHECK_STACK (&td, 2);
2600                         token = read32 (td.ip + 1);
2601                         field = interp_field_from_token (method, token, &klass, generic_context);
2602                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2603                         mono_class_init (klass);
2604                         mt = mint_type(field->type);
2605
2606                         if (klass->marshalbyref) {
2607                                 g_assert (!is_static);
2608                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2609                                 ADD_CODE(&td, get_data_item_index (&td, field));
2610                         } else  {
2611                                 if (is_static) {
2612                                         ADD_CODE (&td, MINT_POP);
2613                                         ADD_CODE (&td, 1);
2614                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2615                                         ADD_CODE (&td, get_data_item_index (&td, field));
2616                                 } else {
2617                                         ADD_CODE (&td, MINT_STFLD_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                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2623                                 int size = mono_class_value_size (klass, NULL);
2624                                 POP_VT(&td, size);
2625                                 WRITE32(&td, &size);
2626                         }
2627                         td.ip += 5;
2628                         td.sp -= 2;
2629                         break;
2630                 }
2631                 case CEE_LDSFLDA:
2632                         token = read32 (td.ip + 1);
2633                         field = interp_field_from_token (method, token, &klass, generic_context);
2634                         ADD_CODE(&td, MINT_LDSFLDA);
2635                         ADD_CODE(&td, get_data_item_index (&td, field));
2636                         td.ip += 5;
2637                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2638                         break;
2639                 case CEE_LDSFLD:
2640                         token = read32 (td.ip + 1);
2641                         field = interp_field_from_token (method, token, &klass, generic_context);
2642                         mt = mint_type(field->type);
2643                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2644                         ADD_CODE(&td, get_data_item_index (&td, field));
2645                         klass = NULL;
2646                         if (mt == MINT_TYPE_VT) {
2647                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2648                                 int size = mono_class_value_size (klass, NULL);
2649                                 PUSH_VT(&td, size);
2650                                 WRITE32(&td, &size);
2651                                 klass = field->type->data.klass;
2652                         } else {
2653                                 if (mt == MINT_TYPE_O)
2654                                         klass = mono_class_from_mono_type (field->type);
2655                         }
2656                         td.ip += 5;
2657                         PUSH_TYPE(&td, stack_type [mt], klass);
2658                         break;
2659                 case CEE_STSFLD:
2660                         CHECK_STACK (&td, 1);
2661                         token = read32 (td.ip + 1);
2662                         field = interp_field_from_token (method, token, &klass, generic_context);
2663                         mt = mint_type(field->type);
2664                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2665                         ADD_CODE(&td, get_data_item_index (&td, field));
2666                         if (mt == MINT_TYPE_VT) {
2667                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2668                                 int size = mono_class_value_size (klass, NULL);
2669                                 POP_VT (&td, size);
2670                                 WRITE32 (&td, &size);
2671                         }
2672                         td.ip += 5;
2673                         --td.sp;
2674                         break;
2675                 case CEE_STOBJ: {
2676                         int size;
2677                         token = read32 (td.ip + 1);
2678
2679                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2680                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2681                         else
2682                                 klass = mini_get_class (method, token, generic_context);
2683
2684                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2685                         ADD_CODE(&td, get_data_item_index (&td, klass));
2686                         if (td.sp [-1].type == STACK_TYPE_VT) {
2687                                 size = mono_class_value_size (klass, NULL);
2688                                 size = (size + 7) & ~7;
2689                                 td.vt_sp -= size;
2690                         }
2691                         td.ip += 5;
2692                         td.sp -= 2;
2693                         break;
2694                 }
2695                 case CEE_CONV_OVF_I_UN:
2696                 case CEE_CONV_OVF_U_UN:
2697                         CHECK_STACK (&td, 1);
2698                         switch (td.sp [-1].type) {
2699                         case STACK_TYPE_R8:
2700 #if SIZEOF_VOID_P == 8
2701                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2702 #else
2703                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2704 #endif
2705                                 break;
2706                         case STACK_TYPE_I8:
2707 #if SIZEOF_VOID_P == 4
2708                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2709 #endif
2710                                 break;
2711                         case STACK_TYPE_I4:
2712 #if SIZEOF_VOID_P == 8
2713                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2714 #elif SIZEOF_VOID_P == 4
2715                                 if (*td.ip == CEE_CONV_OVF_I_UN)
2716                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2717 #endif
2718                                 break;
2719                         default:
2720                                 g_assert_not_reached ();
2721                                 break;
2722                         }
2723                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2724                         ++td.ip;
2725                         break;
2726                 case CEE_CONV_OVF_I8_UN:
2727                 case CEE_CONV_OVF_U8_UN:
2728                         CHECK_STACK (&td, 1);
2729                         switch (td.sp [-1].type) {
2730                         case STACK_TYPE_R8:
2731                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2732                                 break;
2733                         case STACK_TYPE_I8:
2734                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2735                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2736                                 break;
2737                         case STACK_TYPE_I4:
2738                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2739                                 break;
2740                         default:
2741                                 g_assert_not_reached ();
2742                                 break;
2743                         }
2744                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2745                         ++td.ip;
2746                         break;
2747                 case CEE_BOX: {
2748                         int size;
2749                         CHECK_STACK (&td, 1);
2750                         token = read32 (td.ip + 1);
2751                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2752                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2753                         else
2754                                 klass = mini_get_class (method, token, generic_context);
2755
2756                         if (mono_class_is_nullable (klass)) {
2757                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2758                                 /* td.ip is incremented by interp_transform_call */
2759                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2760                         } else if (!klass->valuetype) {
2761                                 /* already boxed, do nothing. */
2762                                 td.ip += 5;
2763                         } else {
2764                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2765                                         size = mono_class_value_size (klass, NULL);
2766                                         size = (size + 7) & ~7;
2767                                         td.vt_sp -= size;
2768                                 }
2769                                 ADD_CODE(&td, MINT_BOX);
2770                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2771                                 ADD_CODE (&td, 0);
2772                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2773                                 td.ip += 5;
2774                         }
2775
2776                         break;
2777                 }
2778                 case CEE_NEWARR: {
2779                         CHECK_STACK (&td, 1);
2780                         token = read32 (td.ip + 1);
2781
2782                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2783                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2784                         else
2785                                 klass = mini_get_class (method, token, generic_context);
2786
2787                         unsigned char lentype = (td.sp - 1)->type;
2788                         if (lentype == STACK_TYPE_I8) {
2789                                 /* mimic mini behaviour */
2790                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2791                         } else {
2792                                 g_assert (lentype == STACK_TYPE_I4);
2793                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2794                         }
2795                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2796                         ADD_CODE (&td, MINT_NEWARR);
2797                         ADD_CODE (&td, get_data_item_index (&td, klass));
2798                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2799                         td.ip += 5;
2800                         break;
2801                 }
2802                 case CEE_LDLEN:
2803                         CHECK_STACK (&td, 1);
2804                         SIMPLE_OP (td, MINT_LDLEN);
2805                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2806                         break;
2807                 case CEE_LDELEMA:
2808                         CHECK_STACK (&td, 2);
2809                         ENSURE_I4 (&td, 1);
2810                         token = read32 (td.ip + 1);
2811
2812                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2813                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2814                         else
2815                                 klass = mini_get_class (method, token, generic_context);
2816
2817                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2818                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2819                         } else {
2820                                 ADD_CODE (&td, MINT_LDELEMA);
2821                         }
2822                         ADD_CODE (&td, get_data_item_index (&td, klass));
2823                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2824                         ADD_CODE (&td, 2);
2825                         readonly = FALSE;
2826
2827                         td.ip += 5;
2828                         --td.sp;
2829                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2830                         break;
2831                 case CEE_LDELEM_I1:
2832                         CHECK_STACK (&td, 2);
2833                         ENSURE_I4 (&td, 1);
2834                         SIMPLE_OP (td, MINT_LDELEM_I1);
2835                         --td.sp;
2836                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2837                         break;
2838                 case CEE_LDELEM_U1:
2839                         CHECK_STACK (&td, 2);
2840                         ENSURE_I4 (&td, 1);
2841                         SIMPLE_OP (td, MINT_LDELEM_U1);
2842                         --td.sp;
2843                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2844                         break;
2845                 case CEE_LDELEM_I2:
2846                         CHECK_STACK (&td, 2);
2847                         ENSURE_I4 (&td, 1);
2848                         SIMPLE_OP (td, MINT_LDELEM_I2);
2849                         --td.sp;
2850                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2851                         break;
2852                 case CEE_LDELEM_U2:
2853                         CHECK_STACK (&td, 2);
2854                         ENSURE_I4 (&td, 1);
2855                         SIMPLE_OP (td, MINT_LDELEM_U2);
2856                         --td.sp;
2857                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2858                         break;
2859                 case CEE_LDELEM_I4:
2860                         CHECK_STACK (&td, 2);
2861                         ENSURE_I4 (&td, 1);
2862                         SIMPLE_OP (td, MINT_LDELEM_I4);
2863                         --td.sp;
2864                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2865                         break;
2866                 case CEE_LDELEM_U4:
2867                         CHECK_STACK (&td, 2);
2868                         ENSURE_I4 (&td, 1);
2869                         SIMPLE_OP (td, MINT_LDELEM_U4);
2870                         --td.sp;
2871                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2872                         break;
2873                 case CEE_LDELEM_I8:
2874                         CHECK_STACK (&td, 2);
2875                         ENSURE_I4 (&td, 1);
2876                         SIMPLE_OP (td, MINT_LDELEM_I8);
2877                         --td.sp;
2878                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2879                         break;
2880                 case CEE_LDELEM_I:
2881                         CHECK_STACK (&td, 2);
2882                         ENSURE_I4 (&td, 1);
2883                         SIMPLE_OP (td, MINT_LDELEM_I);
2884                         --td.sp;
2885                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2886                         break;
2887                 case CEE_LDELEM_R4:
2888                         CHECK_STACK (&td, 2);
2889                         ENSURE_I4 (&td, 1);
2890                         SIMPLE_OP (td, MINT_LDELEM_R4);
2891                         --td.sp;
2892                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2893                         break;
2894                 case CEE_LDELEM_R8:
2895                         CHECK_STACK (&td, 2);
2896                         ENSURE_I4 (&td, 1);
2897                         SIMPLE_OP (td, MINT_LDELEM_R8);
2898                         --td.sp;
2899                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2900                         break;
2901                 case CEE_LDELEM_REF:
2902                         CHECK_STACK (&td, 2);
2903                         ENSURE_I4 (&td, 1);
2904                         SIMPLE_OP (td, MINT_LDELEM_REF);
2905                         --td.sp;
2906                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2907                         break;
2908                 case CEE_LDELEM:
2909                         CHECK_STACK (&td, 2);
2910                         token = read32 (td.ip + 1);
2911                         klass = mini_get_class (method, token, generic_context);
2912                         switch (mint_type (&klass->byval_arg)) {
2913                                 case MINT_TYPE_I1:
2914                                         ENSURE_I4 (&td, 1);
2915                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2916                                         --td.sp;
2917                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2918                                         break;
2919                                 case MINT_TYPE_U1:
2920                                         ENSURE_I4 (&td, 1);
2921                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2922                                         --td.sp;
2923                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2924                                         break;
2925                                 case MINT_TYPE_U2:
2926                                         ENSURE_I4 (&td, 1);
2927                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2928                                         --td.sp;
2929                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2930                                         break;
2931                                 case MINT_TYPE_I2:
2932                                         ENSURE_I4 (&td, 1);
2933                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2934                                         --td.sp;
2935                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2936                                         break;
2937                                 case MINT_TYPE_I4:
2938                                         ENSURE_I4 (&td, 1);
2939                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2940                                         --td.sp;
2941                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2942                                         break;
2943                                 case MINT_TYPE_I8:
2944                                         ENSURE_I4 (&td, 1);
2945                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2946                                         --td.sp;
2947                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2948                                         break;
2949                                 case MINT_TYPE_R4:
2950                                         ENSURE_I4 (&td, 1);
2951                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2952                                         --td.sp;
2953                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2954                                         break;
2955                                 case MINT_TYPE_R8:
2956                                         ENSURE_I4 (&td, 1);
2957                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2958                                         --td.sp;
2959                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2960                                         break;
2961                                 case MINT_TYPE_O:
2962                                         ENSURE_I4 (&td, 1);
2963                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2964                                         --td.sp;
2965                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2966                                         break;
2967                                 case MINT_TYPE_VT: {
2968                                         int size = mono_class_value_size (klass, NULL);
2969                                         ENSURE_I4 (&td, 1);
2970                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2971                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2972                                         WRITE32 (&td, &size);
2973                                         --td.sp;
2974                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2975                                         PUSH_VT (&td, size);
2976                                         break;
2977                                 }
2978                                 default: {
2979                                         GString *res = g_string_new ("");
2980                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2981                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2982                                         g_string_free (res, TRUE);
2983                                         g_assert (0);
2984                                         break;
2985                                 }
2986                         }
2987                         td.ip += 4;
2988                         break;
2989                 case CEE_STELEM_I:
2990                         CHECK_STACK (&td, 3);
2991                         ENSURE_I4 (&td, 2);
2992                         SIMPLE_OP (td, MINT_STELEM_I);
2993                         td.sp -= 3;
2994                         break;
2995                 case CEE_STELEM_I1:
2996                         CHECK_STACK (&td, 3);
2997                         ENSURE_I4 (&td, 2);
2998                         SIMPLE_OP (td, MINT_STELEM_I1);
2999                         td.sp -= 3;
3000                         break;
3001                 case CEE_STELEM_I2:
3002                         CHECK_STACK (&td, 3);
3003                         ENSURE_I4 (&td, 2);
3004                         SIMPLE_OP (td, MINT_STELEM_I2);
3005                         td.sp -= 3;
3006                         break;
3007                 case CEE_STELEM_I4:
3008                         CHECK_STACK (&td, 3);
3009                         ENSURE_I4 (&td, 2);
3010                         SIMPLE_OP (td, MINT_STELEM_I4);
3011                         td.sp -= 3;
3012                         break;
3013                 case CEE_STELEM_I8:
3014                         CHECK_STACK (&td, 3);
3015                         ENSURE_I4 (&td, 2);
3016                         SIMPLE_OP (td, MINT_STELEM_I8);
3017                         td.sp -= 3;
3018                         break;
3019                 case CEE_STELEM_R4:
3020                         CHECK_STACK (&td, 3);
3021                         ENSURE_I4 (&td, 2);
3022                         SIMPLE_OP (td, MINT_STELEM_R4);
3023                         td.sp -= 3;
3024                         break;
3025                 case CEE_STELEM_R8:
3026                         CHECK_STACK (&td, 3);
3027                         ENSURE_I4 (&td, 2);
3028                         SIMPLE_OP (td, MINT_STELEM_R8);
3029                         td.sp -= 3;
3030                         break;
3031                 case CEE_STELEM_REF:
3032                         CHECK_STACK (&td, 3);
3033                         ENSURE_I4 (&td, 2);
3034                         SIMPLE_OP (td, MINT_STELEM_REF);
3035                         td.sp -= 3;
3036                         break;
3037                 case CEE_STELEM:
3038                         CHECK_STACK (&td, 3);
3039                         ENSURE_I4 (&td, 2);
3040                         token = read32 (td.ip + 1);
3041                         klass = mini_get_class (method, token, generic_context);
3042                         switch (mint_type (&klass->byval_arg)) {
3043                                 case MINT_TYPE_U1:
3044                                         SIMPLE_OP (td, MINT_STELEM_U1);
3045                                         break;
3046                                 case MINT_TYPE_U2:
3047                                         SIMPLE_OP (td, MINT_STELEM_U2);
3048                                         break;
3049                                 case MINT_TYPE_I4:
3050                                         SIMPLE_OP (td, MINT_STELEM_I4);
3051                                         break;
3052                                 case MINT_TYPE_I8:
3053                                         SIMPLE_OP (td, MINT_STELEM_I8);
3054                                         break;
3055                                 case MINT_TYPE_O:
3056                                         SIMPLE_OP (td, MINT_STELEM_REF);
3057                                         break;
3058                                 case MINT_TYPE_VT: {
3059                                         int size = mono_class_value_size (klass, NULL);
3060                                         SIMPLE_OP (td, MINT_STELEM_VT);
3061                                         ADD_CODE (&td, get_data_item_index (&td, klass));
3062                                         WRITE32 (&td, &size);
3063                                         POP_VT (&td, size);
3064                                         break;
3065                                 }
3066                                 default: {
3067                                         GString *res = g_string_new ("");
3068                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
3069                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
3070                                         g_string_free (res, TRUE);
3071                                         g_assert (0);
3072                                         break;
3073                                 }
3074                         }
3075                         td.ip += 4;
3076                         td.sp -= 3;
3077                         break;
3078 #if 0
3079                 case CEE_CONV_OVF_U1:
3080
3081                 case CEE_CONV_OVF_I8:
3082
3083 #if SIZEOF_VOID_P == 8
3084                 case CEE_CONV_OVF_U:
3085 #endif
3086 #endif
3087                 case CEE_CKFINITE:
3088                         CHECK_STACK (&td, 1);
3089                         SIMPLE_OP (td, MINT_CKFINITE);
3090                         break;
3091                 case CEE_MKREFANY:
3092                         CHECK_STACK (&td, 1);
3093                         ENSURE_I4 (&td, 2);
3094                         token = read32 (td.ip + 1);
3095                         klass = mini_get_class (method, token, generic_context);
3096
3097                         ADD_CODE (&td, MINT_MKREFANY);
3098                         ADD_CODE (&td, get_data_item_index (&td, klass));
3099
3100                         td.ip += 5;
3101                         PUSH_VT (&td, sizeof (MonoTypedRef));
3102                         SET_TYPE(td.sp - 1, STACK_TYPE_VT, mono_defaults.typed_reference_class);
3103                         break;
3104                 case CEE_REFANYVAL: {
3105                         CHECK_STACK (&td, 1);
3106                         ENSURE_I4 (&td, 2);
3107                         token = read32 (td.ip + 1);
3108
3109                         ADD_CODE (&td, MINT_REFANYVAL);
3110
3111                         POP_VT (&td, sizeof (MonoTypedRef));
3112                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3113
3114                         td.ip += 5;
3115                         break;
3116                 }
3117                 case CEE_CONV_OVF_I1:
3118                 case CEE_CONV_OVF_I1_UN:
3119                         CHECK_STACK (&td, 1);
3120                         switch (td.sp [-1].type) {
3121                         case STACK_TYPE_R8:
3122                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
3123                                 break;
3124                         case STACK_TYPE_I4:
3125                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
3126                                 break;
3127                         case STACK_TYPE_I8:
3128                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
3129                                 break;
3130                         default:
3131                                 g_assert_not_reached ();
3132                         }
3133                         ++td.ip;
3134                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3135                         break;
3136                 case CEE_CONV_OVF_U1:
3137                 case CEE_CONV_OVF_U1_UN:
3138                         CHECK_STACK (&td, 1);
3139                         switch (td.sp [-1].type) {
3140                         case STACK_TYPE_R8:
3141                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
3142                                 break;
3143                         case STACK_TYPE_I4:
3144                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
3145                                 break;
3146                         case STACK_TYPE_I8:
3147                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
3148                                 break;
3149                         default:
3150                                 g_assert_not_reached ();
3151                         }
3152                         ++td.ip;
3153                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3154                         break;
3155                 case CEE_CONV_OVF_I2:
3156                 case CEE_CONV_OVF_I2_UN:
3157                         CHECK_STACK (&td, 1);
3158                         switch (td.sp [-1].type) {
3159                         case STACK_TYPE_R8:
3160                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
3161                                 break;
3162                         case STACK_TYPE_I4:
3163                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
3164                                 break;
3165                         case STACK_TYPE_I8:
3166                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
3167                                 break;
3168                         default:
3169                                 g_assert_not_reached ();
3170                         }
3171                         ++td.ip;
3172                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3173                         break;
3174                 case CEE_CONV_OVF_U2_UN:
3175                 case CEE_CONV_OVF_U2:
3176                         CHECK_STACK (&td, 1);
3177                         switch (td.sp [-1].type) {
3178                         case STACK_TYPE_R8:
3179                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
3180                                 break;
3181                         case STACK_TYPE_I4:
3182                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
3183                                 break;
3184                         case STACK_TYPE_I8:
3185                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
3186                                 break;
3187                         default:
3188                                 g_assert_not_reached ();
3189                         }
3190                         ++td.ip;
3191                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3192                         break;
3193 #if SIZEOF_VOID_P == 4
3194                 case CEE_CONV_OVF_I:
3195 #endif
3196                 case CEE_CONV_OVF_I4:
3197                 case CEE_CONV_OVF_I4_UN:
3198                         CHECK_STACK (&td, 1);
3199                         switch (td.sp [-1].type) {
3200                         case STACK_TYPE_R8:
3201                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
3202                                 break;
3203                         case STACK_TYPE_I4:
3204                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
3205                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
3206                                 break;
3207                         case STACK_TYPE_I8:
3208                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
3209                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
3210                                 else
3211                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
3212                                 break;
3213                         default:
3214                                 g_assert_not_reached ();
3215                         }
3216                         ++td.ip;
3217                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3218                         break;
3219 #if SIZEOF_VOID_P == 4
3220                 case CEE_CONV_OVF_U:
3221 #endif
3222                 case CEE_CONV_OVF_U4:
3223                 case CEE_CONV_OVF_U4_UN:
3224                         CHECK_STACK (&td, 1);
3225                         switch (td.sp [-1].type) {
3226                         case STACK_TYPE_R8:
3227                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
3228                                 break;
3229                         case STACK_TYPE_I4:
3230                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
3231                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
3232                                 break;
3233                         case STACK_TYPE_I8:
3234                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
3235                                 break;
3236                         default:
3237                                 g_assert_not_reached ();
3238                         }
3239                         ++td.ip;
3240                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3241                         break;
3242 #if SIZEOF_VOID_P == 8
3243                 case CEE_CONV_OVF_I:
3244 #endif
3245                 case CEE_CONV_OVF_I8:
3246                         CHECK_STACK (&td, 1);
3247                         switch (td.sp [-1].type) {
3248                         case STACK_TYPE_R8:
3249                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
3250                                 break;
3251                         case STACK_TYPE_I4:
3252                                 ADD_CODE(&td, MINT_CONV_I8_I4);
3253                                 break;
3254                         case STACK_TYPE_I8:
3255                                 break;
3256                         default:
3257                                 g_assert_not_reached ();
3258                         }
3259                         ++td.ip;
3260                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
3261                         break;
3262 #if SIZEOF_VOID_P == 8
3263                 case CEE_CONV_OVF_U:
3264 #endif
3265                 case CEE_CONV_OVF_U8:
3266                         CHECK_STACK (&td, 1);
3267                         switch (td.sp [-1].type) {
3268                         case STACK_TYPE_R8:
3269                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
3270                                 break;
3271                         case STACK_TYPE_I4:
3272                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
3273                                 break;
3274                         case STACK_TYPE_I8:
3275                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
3276                                 break;
3277                         default:
3278                                 g_assert_not_reached ();
3279                         }
3280                         ++td.ip;
3281                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
3282                         break;
3283                 case CEE_LDTOKEN: {
3284                         int size;
3285                         gpointer handle;
3286                         token = read32 (td.ip + 1);
3287                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
3288                                 handle = mono_method_get_wrapper_data (method, token);
3289                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
3290                                 if (klass == mono_defaults.typehandle_class)
3291                                         handle = &((MonoClass *) handle)->byval_arg;
3292
3293                                 if (generic_context) {
3294                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
3295                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3296                                 }
3297                         } else {
3298                                 handle = mono_ldtoken (image, token, &klass, generic_context);
3299                         }
3300                         mono_class_init (klass);
3301                         mt = mint_type (&klass->byval_arg);
3302                         g_assert (mt == MINT_TYPE_VT);
3303                         size = mono_class_value_size (klass, NULL);
3304                         g_assert (size == sizeof(gpointer));
3305                         PUSH_VT (&td, sizeof(gpointer));
3306                         ADD_CODE (&td, MINT_LDTOKEN);
3307                         ADD_CODE (&td, get_data_item_index (&td, handle));
3308
3309                         SET_TYPE (td.sp, stack_type [mt], klass);
3310                         td.sp++;
3311                         td.ip += 5;
3312                         break;
3313                 }
3314                 case CEE_ADD_OVF:
3315                         binary_arith_op(&td, MINT_ADD_OVF_I4);
3316                         ++td.ip;
3317                         break;
3318                 case CEE_ADD_OVF_UN:
3319                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
3320                         ++td.ip;
3321                         break;
3322                 case CEE_MUL_OVF:
3323                         binary_arith_op(&td, MINT_MUL_OVF_I4);
3324                         ++td.ip;
3325                         break;
3326                 case CEE_MUL_OVF_UN:
3327                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
3328                         ++td.ip;
3329                         break;
3330                 case CEE_SUB_OVF:
3331                         binary_arith_op(&td, MINT_SUB_OVF_I4);
3332                         ++td.ip;
3333                         break;
3334                 case CEE_SUB_OVF_UN:
3335                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
3336                         ++td.ip;
3337                         break;
3338                 case CEE_ENDFINALLY:
3339                         g_assert (td.clause_indexes [in_offset] != -1);
3340                         td.sp = td.stack;
3341                         SIMPLE_OP (td, MINT_ENDFINALLY);
3342                         ADD_CODE (&td, td.clause_indexes [in_offset]);
3343                         generating_code = 0;
3344                         break;
3345                 case CEE_LEAVE:
3346                         td.sp = td.stack;
3347                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
3348                         td.ip += 5;
3349                         generating_code = 0;
3350                         break;
3351                 case CEE_LEAVE_S:
3352                         td.sp = td.stack;
3353                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
3354                         td.ip += 2;
3355                         generating_code = 0;
3356                         break;
3357                 case CEE_UNUSED41:
3358                         ++td.ip;
3359                         switch (*td.ip) {
3360                                 case CEE_MONO_CALLI_EXTRA_ARG:
3361                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
3362                                         ADD_CODE (&td, MINT_POP);
3363                                         ADD_CODE (&td, 1);
3364                                         --td.sp;
3365                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
3366                                         break;
3367                                 case CEE_MONO_JIT_ICALL_ADDR: {
3368                                         guint32 token;
3369                                         gpointer func;
3370                                         MonoJitICallInfo *info;
3371
3372                                         token = read32 (td.ip + 1);
3373                                         td.ip += 5;
3374                                         func = mono_method_get_wrapper_data (method, token);
3375                                         info = mono_find_jit_icall_by_addr (func);
3376
3377                                         ADD_CODE (&td, MINT_LDFTN);
3378                                         ADD_CODE (&td, get_data_item_index (&td, func));
3379                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
3380                                         break;
3381                                 }
3382                                 case CEE_MONO_ICALL: {
3383                                         guint32 token;
3384                                         gpointer func;
3385                                         MonoJitICallInfo *info;
3386
3387                                         token = read32 (td.ip + 1);
3388                                         td.ip += 5;
3389                                         func = mono_method_get_wrapper_data (method, token);
3390                                         info = mono_find_jit_icall_by_addr (func);
3391                                         g_assert (info);
3392
3393                                         CHECK_STACK (&td, info->sig->param_count);
3394                                         switch (info->sig->param_count) {
3395                                         case 0:
3396                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3397                                                         ADD_CODE (&td,MINT_ICALL_V_V);
3398                                                 else
3399                                                         ADD_CODE (&td, MINT_ICALL_V_P);
3400                                                 break;
3401                                         case 1:
3402                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
3403                                                         ADD_CODE (&td,MINT_ICALL_P_V);
3404                                                 else
3405                                                         ADD_CODE (&td,MINT_ICALL_P_P);
3406                                                 break;
3407                                         case 2:
3408                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
3409                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3410                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
3411                                                         else
3412                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
3413                                                 } else {
3414                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
3415                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
3416                                                         else
3417                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
3418                                                 }
3419                                                 break;
3420                                         case 3:
3421                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
3422                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
3423                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
3424                                                 else
3425                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
3426                                                 break;
3427                                         default:
3428                                                 g_assert_not_reached ();
3429                                         }
3430
3431                                         if (func == mono_ftnptr_to_delegate) {
3432                                                 g_error ("TODO: ?");
3433                                         }
3434                                         ADD_CODE(&td, get_data_item_index (&td, func));
3435                                         td.sp -= info->sig->param_count;
3436
3437                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
3438                                                 td.sp ++;
3439                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
3440                                         }
3441                                         break;
3442                                 }
3443                         case CEE_MONO_VTADDR: {
3444                                 int size;
3445                                 CHECK_STACK (&td, 1);
3446                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
3447                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
3448                                 else
3449                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
3450                                 size = (size + 7) & ~7;
3451                                 ADD_CODE(&td, MINT_VTRESULT);
3452                                 ADD_CODE(&td, 0);
3453                                 WRITE32(&td, &size);
3454                                 td.vt_sp -= size;
3455                                 ++td.ip;
3456                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3457                                 break;
3458                         }
3459                         case CEE_MONO_LDPTR:
3460                         case CEE_MONO_CLASSCONST:
3461                                 token = read32 (td.ip + 1);
3462                                 td.ip += 5;
3463                                 ADD_CODE(&td, MINT_MONO_LDPTR);
3464                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
3465                                 td.sp [0].type = STACK_TYPE_I;
3466                                 ++td.sp;
3467                                 break;
3468                         case CEE_MONO_OBJADDR:
3469                                 CHECK_STACK (&td, 1);
3470                                 ++td.ip;
3471                                 td.sp[-1].type = STACK_TYPE_MP;
3472                                 /* do nothing? */
3473                                 break;
3474                         case CEE_MONO_NEWOBJ:
3475                                 token = read32 (td.ip + 1);
3476                                 td.ip += 5;
3477                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
3478                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
3479                                 td.sp [0].type = STACK_TYPE_O;
3480                                 ++td.sp;
3481                                 break;
3482                         case CEE_MONO_RETOBJ:
3483                                 CHECK_STACK (&td, 1);
3484                                 token = read32 (td.ip + 1);
3485                                 td.ip += 5;
3486                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
3487                                 td.sp--;
3488
3489                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3490
3491                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
3492
3493                                 if (td.sp > td.stack)
3494                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
3495                                 break;
3496                         case CEE_MONO_LDNATIVEOBJ:
3497                                 token = read32 (td.ip + 1);
3498                                 td.ip += 5;
3499                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3500                                 g_assert(klass->valuetype);
3501                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3502                                 break;
3503                         case CEE_MONO_TLS: {
3504                                 gint32 key = read32 (td.ip + 1);
3505                                 td.ip += 5;
3506                                 g_assert (key < TLS_KEY_NUM);
3507                                 ADD_CODE (&td, MINT_MONO_TLS);
3508                                 WRITE32 (&td, &key);
3509                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_MP);
3510                                 break;
3511                         }
3512                         case CEE_MONO_ATOMIC_STORE_I4:
3513                                 CHECK_STACK (&td, 2);
3514                                 SIMPLE_OP (td, MINT_MONO_ATOMIC_STORE_I4);
3515                                 td.sp -= 2;
3516                                 td.ip++;
3517                                 break;
3518                         case CEE_MONO_SAVE_LMF:
3519                         case CEE_MONO_RESTORE_LMF:
3520                         case CEE_MONO_NOT_TAKEN:
3521                                 ++td.ip;
3522                                 break;
3523                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
3524                                 ADD_CODE (&td, MINT_MONO_LDPTR);
3525                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
3526                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
3527                                 ++td.ip;
3528                                 break;
3529                         case CEE_MONO_JIT_ATTACH:
3530                                 ADD_CODE (&td, MINT_MONO_JIT_ATTACH);
3531                                 ++td.ip;
3532                                 break;
3533                         case CEE_MONO_JIT_DETACH:
3534                                 ADD_CODE (&td, MINT_MONO_JIT_DETACH);
3535                                 ++td.ip;
3536                                 break;
3537                         default:
3538                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
3539                         }
3540                         break;
3541 #if 0
3542                 case CEE_PREFIX7:
3543                 case CEE_PREFIX6:
3544                 case CEE_PREFIX5:
3545                 case CEE_PREFIX4:
3546                 case CEE_PREFIX3:
3547                 case CEE_PREFIX2:
3548                 case CEE_PREFIXREF: ves_abort(); break;
3549 #endif
3550                 /*
3551                  * Note: Exceptions thrown when executing a prefixed opcode need
3552                  * to take into account the number of prefix bytes (usually the
3553                  * throw point is just (ip - n_prefix_bytes).
3554                  */
3555                 case CEE_PREFIX1:
3556                         ++td.ip;
3557                         switch (*td.ip) {
3558 #if 0
3559                         case CEE_ARGLIST: ves_abort(); break;
3560 #endif
3561                         case CEE_CEQ:
3562                                 CHECK_STACK(&td, 2);
3563                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3564                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3565                                 else
3566                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
3567                                 --td.sp;
3568                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3569                                 ++td.ip;
3570                                 break;
3571                         case CEE_CGT:
3572                                 CHECK_STACK(&td, 2);
3573                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3574                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3575                                 else
3576                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3577                                 --td.sp;
3578                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3579                                 ++td.ip;
3580                                 break;
3581                         case CEE_CGT_UN:
3582                                 CHECK_STACK(&td, 2);
3583                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3584                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3585                                 else
3586                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3587                                 --td.sp;
3588                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3589                                 ++td.ip;
3590                                 break;
3591                         case CEE_CLT:
3592                                 CHECK_STACK(&td, 2);
3593                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3594                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3595                                 else
3596                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3597                                 --td.sp;
3598                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3599                                 ++td.ip;
3600                                 break;
3601                         case CEE_CLT_UN:
3602                                 CHECK_STACK(&td, 2);
3603                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3604                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3605                                 else
3606                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3607                                 --td.sp;
3608                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3609                                 ++td.ip;
3610                                 break;
3611                         case CEE_LDVIRTFTN: /* fallthrough */
3612                         case CEE_LDFTN: {
3613                                 MonoMethod *m;
3614                                 if (*td.ip == CEE_LDVIRTFTN) {
3615                                         CHECK_STACK (&td, 1);
3616                                         --td.sp;
3617                                 }
3618                                 token = read32 (td.ip + 1);
3619                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3620                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3621                                 else
3622                                         m = mono_get_method_full (image, token, NULL, generic_context);
3623
3624                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3625                                         m = mono_marshal_get_synchronized_wrapper (m);
3626
3627                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3628                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3629                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3630                                 td.ip += 5;
3631                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3632                                 break;
3633                         }
3634                         case CEE_LDARG:
3635                                 load_arg (&td, read16 (td.ip + 1));
3636                                 td.ip += 3;
3637                                 break;
3638                         case CEE_LDARGA: {
3639                                 int n = read16 (td.ip + 1);
3640                                 ADD_CODE (&td, MINT_LDARGA);
3641                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3642                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3643                                 td.ip += 3;
3644                                 break;
3645                         }
3646                         case CEE_STARG:
3647                                 store_arg (&td, read16 (td.ip + 1));
3648                                 td.ip += 3;
3649                                 break;
3650                         case CEE_LDLOC:
3651                                 load_local (&td, read16 (td.ip + 1));
3652                                 td.ip += 3;
3653                                 break;
3654                         case CEE_LDLOCA:
3655                                 ADD_CODE(&td, MINT_LDLOCA_S);
3656                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3657                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3658                                 td.ip += 3;
3659                                 break;
3660                         case CEE_STLOC:
3661                                 store_local (&td, read16 (td.ip + 1));
3662                                 td.ip += 3;
3663                                 break;
3664                         case CEE_LOCALLOC:
3665                                 CHECK_STACK (&td, 1);
3666 #if SIZEOF_VOID_P == 8
3667                                 if (td.sp [-1].type == STACK_TYPE_I8)
3668                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3669 #endif
3670                                 ADD_CODE(&td, MINT_LOCALLOC);
3671                                 if (td.sp != td.stack + 1)
3672                                         g_warning("CEE_LOCALLOC: stack not empty");
3673                                 ++td.ip;
3674                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3675                                 break;
3676 #if 0
3677                         case CEE_UNUSED57: ves_abort(); break;
3678 #endif
3679                         case CEE_ENDFILTER:
3680                                 ADD_CODE (&td, MINT_ENDFILTER);
3681                                 ++td.ip;
3682                                 break;
3683                         case CEE_UNALIGNED_:
3684                                 td.ip += 2;
3685                                 break;
3686                         case CEE_VOLATILE_:
3687                                 ++td.ip;
3688                                 /* FIX: should do something? */;
3689                                 break;
3690                         case CEE_TAIL_:
3691                                 ++td.ip;
3692                                 /* FIX: should do something? */;
3693                                 break;
3694                         case CEE_INITOBJ:
3695                                 CHECK_STACK(&td, 1);
3696                                 token = read32 (td.ip + 1);
3697                                 klass = mini_get_class (method, token, generic_context);
3698                                 if (klass->valuetype) {
3699                                         ADD_CODE (&td, MINT_INITOBJ);
3700                                         i32 = mono_class_value_size (klass, NULL);
3701                                         WRITE32 (&td, &i32);
3702                                 } else {
3703                                         ADD_CODE (&td, MINT_LDNULL);
3704                                         ADD_CODE (&td, MINT_STIND_REF);
3705                                 }
3706                                 td.ip += 5;
3707                                 --td.sp;
3708                                 break;
3709                         case CEE_CPBLK:
3710                                 CHECK_STACK(&td, 3);
3711                                 /* FIX? convert length to I8? */
3712                                 ADD_CODE(&td, MINT_CPBLK);
3713                                 td.sp -= 3;
3714                                 ++td.ip;
3715                                 break;
3716                         case CEE_READONLY_:
3717                                 readonly = TRUE;
3718                                 td.ip += 1;
3719                                 break;
3720                         case CEE_CONSTRAINED_:
3721                                 token = read32 (td.ip + 1);
3722                                 constrained_class = mini_get_class (method, token, generic_context);
3723                                 mono_class_init (constrained_class);
3724                                 td.ip += 5;
3725                                 break;
3726                         case CEE_INITBLK:
3727                                 CHECK_STACK(&td, 3);
3728                                 ADD_CODE(&td, MINT_INITBLK);
3729                                 td.sp -= 3;
3730                                 td.ip += 1;
3731                                 break;
3732 #if 0
3733                         case CEE_NO_:
3734                                 /* FIXME: implement */
3735                                 ip += 2;
3736                                 break;
3737 #endif
3738                         case CEE_RETHROW:
3739                                 SIMPLE_OP (td, MINT_RETHROW);
3740                                 generating_code = 0;
3741                                 break;
3742                         case CEE_SIZEOF: {
3743                                 gint32 size;
3744                                 token = read32 (td.ip + 1);
3745                                 td.ip += 5;
3746                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3747                                         int align;
3748                                         MonoType *type = mono_type_create_from_typespec (image, token);
3749                                         size = mono_type_size (type, &align);
3750                                 } else {
3751                                         int align;
3752                                         MonoClass *szclass = mini_get_class (method, token, generic_context);
3753                                         mono_class_init (szclass);
3754 #if 0
3755                                         if (!szclass->valuetype)
3756                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3757 #endif
3758                                         size = mono_type_size (&szclass->byval_arg, &align);
3759                                 }
3760                                 ADD_CODE(&td, MINT_LDC_I4);
3761                                 WRITE32(&td, &size);
3762                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3763                                 break;
3764                         }
3765                         case CEE_REFANYTYPE:
3766                                 ADD_CODE (&td, MINT_REFANYTYPE);
3767                                 td.ip += 1;
3768                                 POP_VT (&td, sizeof (MonoTypedRef));
3769                                 PUSH_VT (&td, sizeof (gpointer));
3770                                 SET_TYPE(td.sp - 1, STACK_TYPE_VT, NULL);
3771                                 break;
3772                         default:
3773                                 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);
3774                         }
3775                         break;
3776                 default:
3777                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3778                 }
3779
3780                 if (td.new_ip - td.new_code != new_in_start_offset)
3781                         td.last_new_ip = td.new_code + new_in_start_offset;
3782                 else if (td.is_bb_start [td.in_start - td.il_code])
3783                         td.is_bb_start [td.ip - td.il_code] = 1;
3784
3785                 td.last_ip = td.in_start;
3786         }
3787
3788         /* Handle relocations */
3789         for (int i = 0; i < td.relocs->len; ++i) {
3790                 Reloc *reloc = g_ptr_array_index (td.relocs, i);
3791
3792                 int offset = td.in_offsets [reloc->target] - reloc->offset;
3793
3794                 switch (reloc->type) {
3795                 case RELOC_SHORT_BRANCH:
3796                         g_assert (td.new_code [reloc->offset + 1] == 0xffff);
3797                         td.new_code [reloc->offset + 1] = offset;
3798                         break;
3799                 case RELOC_LONG_BRANCH:
3800                         g_assert_not_reached ();
3801                         break;
3802                 case RELOC_SWITCH: {
3803                         guint16 *v = (guint16*)&offset;
3804                         td.new_code [reloc->offset] = *(guint16*)v;
3805                         td.new_code [reloc->offset + 1] = *(guint16*)(v + 1);
3806                         break;
3807                 }
3808                 default:
3809                         g_assert_not_reached ();
3810                         break;
3811                 }
3812         }
3813
3814         if (td.verbose_level) {
3815                 const guint16 *p = td.new_code;
3816                 printf("Runtime method: %s %p, VT stack size: %d\n", mono_method_full_name (method, TRUE), rtm, td.max_vt_sp);
3817                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3818                 while (p < td.new_ip) {
3819                         p = mono_interp_dis_mintop(td.new_code, p);
3820                         printf("\n");
3821                 }
3822         }
3823         g_assert (td.max_stack_height <= (header->max_stack + 1));
3824
3825         int code_len = td.new_ip - td.new_code;
3826
3827         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3828         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3829         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3830         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3831         g_free (td.new_code);
3832         rtm->new_body_start = rtm->code + body_start_offset;
3833         rtm->num_clauses = header->num_clauses;
3834         for (i = 0; i < header->num_clauses; i++) {
3835                 MonoExceptionClause *c = rtm->clauses + i;
3836                 int end_off = c->try_offset + c->try_len;
3837                 c->try_offset = td.in_offsets [c->try_offset];
3838                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3839                 end_off = c->handler_offset + c->handler_len;
3840                 c->handler_offset = td.in_offsets [c->handler_offset];
3841                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3842                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3843                         c->data.filter_offset = td.in_offsets [c->data.filter_offset];
3844         }
3845         rtm->vt_stack_size = td.max_vt_sp;
3846         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3847         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3848         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3849
3850         /* Save debug info */
3851         interp_save_debug_info (rtm, header, &td, line_numbers);
3852
3853         /* Create a MonoJitInfo for the interpreted method by creating the interpreter IR as the native code. */
3854         int jinfo_len = mono_jit_info_size (0, header->num_clauses, 0);
3855         MonoJitInfo *jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, jinfo_len);
3856         jinfo->is_interp = 1;
3857         rtm->jinfo = jinfo;
3858         mono_jit_info_init (jinfo, method, (guint8*)rtm->code, code_len, 0, header->num_clauses, 0);
3859         for (i = 0; i < jinfo->num_clauses; ++i) {
3860                 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3861                 MonoExceptionClause *c = rtm->clauses + i;
3862
3863                 ei->flags = c->flags;
3864                 ei->try_start = (guint8*)(rtm->code + c->try_offset);
3865                 ei->try_end = (guint8*)(rtm->code + c->try_offset + c->try_len);
3866                 ei->handler_start = (guint8*)(rtm->code + c->handler_offset);
3867                 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3868                 } else {
3869                         ei->data.catch_class = c->data.catch_class;
3870                 }
3871         }
3872
3873         save_seq_points (&td);
3874
3875         g_free (td.in_offsets);
3876         for (i = 0; i < header->code_size; ++i)
3877                 g_free (td.stack_state [i]);
3878         g_free (td.stack_state);
3879         g_free (td.stack_height);
3880         g_free (td.vt_stack_size);
3881         g_free (td.data_items);
3882         g_free (td.stack);
3883         g_hash_table_destroy (td.data_hash);
3884         g_free (td.clause_indexes);
3885         g_ptr_array_free (td.seq_points, TRUE);
3886         g_array_free (line_numbers, TRUE);
3887         g_ptr_array_free (td.relocs, TRUE);
3888         mono_mempool_destroy (td.mempool);
3889 }
3890
3891 static mono_mutex_t calc_section;
3892
3893 void
3894 mono_interp_transform_init (void)
3895 {
3896         mono_os_mutex_init_recursive(&calc_section);
3897 }
3898
3899 MonoException *
3900 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3901 {
3902         int i, align, size, offset;
3903         MonoMethod *method = runtime_method->method;
3904         MonoImage *image = method->klass->image;
3905         MonoMethodHeader *header = mono_method_get_header (method);
3906         MonoMethodSignature *signature = mono_method_signature (method);
3907         register const unsigned char *ip, *end;
3908         const MonoOpcode *opcode;
3909         MonoMethod *m;
3910         MonoClass *class;
3911         MonoDomain *domain = mono_domain_get ();
3912         unsigned char *is_bb_start;
3913         int in;
3914         MonoVTable *method_class_vt;
3915         int backwards;
3916         MonoGenericContext *generic_context = NULL;
3917
3918         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3919         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3920         if (!method_class_vt->initialized) {
3921                 MonoError error;
3922                 jmp_buf env;
3923                 MonoInvocation *last_env_frame = context->env_frame;
3924                 jmp_buf *old_env = context->current_env;
3925                 error_init (&error);
3926
3927                 if (setjmp(env)) {
3928                         MonoException *failed = context->env_frame->ex;
3929                         context->env_frame->ex = NULL;
3930                         context->env_frame = last_env_frame;
3931                         context->current_env = old_env;
3932                         return failed;
3933                 }
3934                 context->env_frame = context->current_frame;
3935                 context->current_env = &env;
3936                 mono_runtime_class_init_full (method_class_vt, &error);
3937                 if (!mono_error_ok (&error)) {
3938                         return mono_error_convert_to_exception (&error);
3939                 }
3940                 context->env_frame = last_env_frame;
3941                 context->current_env = old_env;
3942         }
3943
3944         mono_profiler_method_jit (method); /* sort of... */
3945
3946         if (mono_method_signature (method)->is_inflated)
3947                 generic_context = mono_method_get_context (method);
3948         else {
3949                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3950                 if (generic_container)
3951                         generic_context = &generic_container->context;
3952         }
3953
3954         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3955                 MonoMethod *nm = NULL;
3956                 mono_os_mutex_lock(&calc_section);
3957                 if (runtime_method->transformed) {
3958                         mono_os_mutex_unlock(&calc_section);
3959                         mono_profiler_method_end_jit (method, runtime_method->jinfo, MONO_PROFILE_OK);
3960                         return NULL;
3961                 }
3962
3963                 /* assumes all internal calls with an array this are built in... */
3964                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3965                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3966                         signature = mono_method_signature (nm);
3967                 } else {
3968                         const char *name = method->name;
3969                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3970                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3971                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3972                                         g_assert (mi);
3973                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3974                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3975                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3976                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3977                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3978                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3979                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3980                                         nm = mono_marshal_get_delegate_end_invoke (method);
3981                                 }
3982                         }
3983                         if (nm == NULL) {
3984                                 runtime_method->code = g_malloc(sizeof(short));
3985                                 runtime_method->code[0] = MINT_CALLRUN;
3986                         }
3987                 }
3988                 if (nm == NULL) {
3989                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3990                         runtime_method->alloca_size = runtime_method->stack_size;
3991                         runtime_method->transformed = TRUE;
3992                         mono_os_mutex_unlock(&calc_section);
3993                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3994                         return NULL;
3995                 }
3996                 method = nm;
3997                 header = mono_method_get_header (nm);
3998                 mono_os_mutex_unlock(&calc_section);
3999         } else if (method->klass == mono_defaults.array_class) {
4000                 if (!strcmp (method->name, "UnsafeMov") || !strcmp (method->name, "UnsafeLoad")) {
4001                         mono_os_mutex_lock (&calc_section);
4002                         if (!runtime_method->transformed) {
4003                                 runtime_method->code = g_malloc (sizeof (short));
4004                                 runtime_method->code[0] = MINT_CALLRUN;
4005                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
4006                                 runtime_method->alloca_size = runtime_method->stack_size;
4007                                 runtime_method->transformed = TRUE;
4008                         }
4009                         mono_os_mutex_unlock(&calc_section);
4010                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
4011                         return NULL;
4012                 } else if (!strcmp (method->name, "UnsafeStore")) {
4013                         g_error ("TODO");
4014                 }
4015         }
4016         g_assert ((signature->param_count + signature->hasthis) < 1000);
4017         g_assert (header->max_stack < 10000);
4018         /* intern the strings in the method. */
4019         ip = header->code;
4020         end = ip + header->code_size;
4021
4022         is_bb_start = g_malloc0(header->code_size);
4023         is_bb_start [0] = 1;
4024         while (ip < end) {
4025                 in = *ip;
4026                 if (in == 0xfe) {
4027                         ip++;
4028                         in = *ip + 256;
4029                 }
4030                 else if (in == 0xf0) {
4031                         ip++;
4032                         in = *ip + MONO_CEE_MONO_ICALL;
4033                 }
4034                 opcode = &mono_opcodes [in];
4035                 switch (opcode->argument) {
4036                 case MonoInlineNone:
4037                         ++ip;
4038                         break;
4039                 case MonoInlineString:
4040                         if (method->wrapper_type == MONO_WRAPPER_NONE)
4041                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
4042                         ip += 5;
4043                         break;
4044                 case MonoInlineType:
4045                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
4046                                 class = mini_get_class (method, read32 (ip + 1), generic_context);
4047                                 mono_class_init (class);
4048                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
4049 #if 0
4050                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
4051                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
4052                                         mono_class_vtable (domain, class);
4053 #endif
4054                         }
4055                         ip += 5;
4056                         break;
4057                 case MonoInlineMethod:
4058                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
4059                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
4060                                 if (m == NULL) {
4061                                         g_free (is_bb_start);
4062                                         g_error ("FIXME: where to get method and class string?");
4063                                         return NULL;
4064                                         // return mono_get_exception_missing_method ();
4065                                 }
4066                                 mono_class_init (m->klass);
4067                                 if (!mono_class_is_interface (m->klass))
4068                                         mono_class_vtable (domain, m->klass);
4069                         }
4070                         ip += 5;
4071                         break;
4072                 case MonoInlineField:
4073                 case MonoInlineSig:
4074                 case MonoInlineI:
4075                 case MonoInlineTok:
4076                 case MonoShortInlineR:
4077                         ip += 5;
4078                         break;
4079                 case MonoInlineBrTarget:
4080                         offset = read32 (ip + 1);
4081                         ip += 5;
4082                         backwards = offset < 0;
4083                         offset += ip - header->code;
4084                         g_assert (offset >= 0 && offset < header->code_size);
4085                         is_bb_start [offset] |= backwards ? 2 : 1;
4086                         break;
4087                 case MonoShortInlineBrTarget:
4088                         offset = ((gint8 *)ip) [1];
4089                         ip += 2;
4090                         backwards = offset < 0;
4091                         offset += ip - header->code;
4092                         g_assert (offset >= 0 && offset < header->code_size);
4093                         is_bb_start [offset] |= backwards ? 2 : 1;
4094                         break;
4095                 case MonoInlineVar:
4096                         ip += 3;
4097                         break;
4098                 case MonoShortInlineVar:
4099                 case MonoShortInlineI:
4100                         ip += 2;
4101                         break;
4102                 case MonoInlineSwitch: {
4103                         guint32 n;
4104                         const unsigned char *next_ip;
4105                         ++ip;
4106                         n = read32 (ip);
4107                         ip += 4;
4108                         next_ip = ip + 4 * n;
4109                         for (i = 0; i < n; i++) {
4110                                 offset = read32 (ip);
4111                                 backwards = offset < 0;
4112                                 offset += next_ip - header->code;
4113                                 g_assert (offset >= 0 && offset < header->code_size);
4114                                 is_bb_start [offset] |= backwards ? 2 : 1;
4115                                 ip += 4;
4116                         }
4117                         break;
4118                 }
4119                 case MonoInlineR:
4120                 case MonoInlineI8:
4121                         ip += 9;
4122                         break;
4123                 default:
4124                         g_assert_not_reached ();
4125                 }
4126         }
4127         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
4128
4129         /* the rest needs to be locked so it is only done once */
4130         mono_os_mutex_lock(&calc_section);
4131         if (runtime_method->transformed) {
4132                 mono_os_mutex_unlock(&calc_section);
4133                 g_free (is_bb_start);
4134                 mono_profiler_method_end_jit (method, runtime_method->jinfo, MONO_PROFILE_OK);
4135                 return NULL;
4136         }
4137
4138         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
4139         runtime_method->stack_size = (sizeof (stackval)) * (header->max_stack + 2); /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
4140         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
4141         offset = 0;
4142         for (i = 0; i < header->num_locals; ++i) {
4143                 size = mono_type_size (header->locals [i], &align);
4144                 offset += align - 1;
4145                 offset &= ~(align - 1);
4146                 runtime_method->local_offsets [i] = offset;
4147                 offset += size;
4148         }
4149         offset = (offset + 7) & ~7;
4150         runtime_method->locals_size = offset;
4151         g_assert (runtime_method->locals_size < 65536);
4152         offset = 0;
4153         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
4154
4155         if (signature->hasthis) {
4156                 g_assert (!signature->pinvoke);
4157                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
4158                 offset += align - 1;
4159                 offset &= ~(align - 1);
4160                 runtime_method->arg_offsets [0] = offset;
4161                 offset += size;
4162         }
4163
4164         for (i = 0; i < signature->param_count; ++i) {
4165                 if (signature->pinvoke) {
4166                         guint32 dummy;
4167                         size = mono_type_native_stack_size (signature->params [i], &dummy);
4168                         align = 8;
4169                 }
4170                 else
4171                         size = mono_type_stack_size (signature->params [i], &align);
4172                 offset += align - 1;
4173                 offset &= ~(align - 1);
4174                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
4175                 offset += size;
4176         }
4177         offset = (offset + 7) & ~7;
4178         runtime_method->args_size = offset;
4179         g_assert (runtime_method->args_size < 10000);
4180
4181         generate (method, runtime_method, is_bb_start, generic_context);
4182
4183         g_free (is_bb_start);
4184
4185         // FIXME: Add a different callback ?
4186         mono_profiler_method_end_jit (method, runtime_method->jinfo, MONO_PROFILE_OK);
4187         runtime_method->transformed = TRUE;
4188         mono_os_mutex_unlock(&calc_section);
4189
4190         return NULL;
4191 }
4192