mono/mini/interpreter/transform.c

   1 /*
   2  * transform CIL into different opcodes for more
   3  * efficient interpretation
   4  *
   5  * Written by Bernie Solomon (bernard@ugsolutions.com)
   6  * Copyright (c) 2004.
   7  */
   8
   9 #include <string.h>
  10 #include <mono/metadata/appdomain.h>
  11 #include <mono/metadata/debug-helpers.h>
  12 #include <mono/metadata/exception.h>
  13 #include <mono/metadata/mono-endian.h>
  14 #include <mono/metadata/marshal.h>
  15 #include <mono/metadata/profiler-private.h>
  16 #include <mono/metadata/tabledefs.h>
  17
  18 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
  19         a = i,
  20
  21 enum {
  22 #include "mono/cil/opcode.def"
  23         CEE_LASTOP
  24 };
  25 #undef OPDEF
  26
  27 #include "mintops.h"
  28 #include "interp.h"
  29
  30 #define DEBUG 0
  31
  32 typedef struct
  33 {
  34         MonoClass *klass;
  35         unsigned char type;
  36         unsigned char flags;
  37 } StackInfo;
  38
  39 typedef struct
  40 {
  41         MonoMethod *method;
  42         MonoMethodHeader *header;
  43         RuntimeMethod *rtm;
  44         const unsigned char *il_code;
  45         const unsigned char *ip;
  46         const unsigned char *last_ip;
  47         const unsigned char *in_start;
  48         int code_size;
  49         int *in_offsets;
  50         int *forward_refs;
  51         StackInfo **stack_state;
  52         int *stack_height;
  53         int *vt_stack_size;
  54         unsigned char *is_bb_start;
  55         unsigned short *new_code;
  56         unsigned short *new_code_end;
  57         unsigned short *new_ip;
  58         unsigned short *last_new_ip;
  59         unsigned int max_code_size;
  60         StackInfo *stack;
  61         StackInfo *sp;
  62         unsigned int max_stack_height;
  63         unsigned int vt_sp;
  64         unsigned int max_vt_sp;
  65         int n_data_items;
  66         int max_data_items;
  67         void **data_items;
  68         GHashTable *data_hash;
  69 } TransformData;
  70
  71 #define MINT_TYPE_I1 0
  72 #define MINT_TYPE_U1 1
  73 #define MINT_TYPE_I2 2
  74 #define MINT_TYPE_U2 3
  75 #define MINT_TYPE_I4 4
  76 #define MINT_TYPE_I8 5
  77 #define MINT_TYPE_R4 6
  78 #define MINT_TYPE_R8 7
  79 #define MINT_TYPE_O  8
  80 #define MINT_TYPE_P  9
  81 #define MINT_TYPE_VT 10
  82
  83 #define STACK_TYPE_I4 0
  84 #define STACK_TYPE_I8 1
  85 #define STACK_TYPE_R8 2
  86 #define STACK_TYPE_O  3
  87 #define STACK_TYPE_VT 4
  88 #define STACK_TYPE_MP 5
  89 #define STACK_TYPE_F  6
  90
  91 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
  92
  93 #if SIZEOF_VOID_P == 8
  94 #define STACK_TYPE_I STACK_TYPE_I8
  95 #else
  96 #define STACK_TYPE_I STACK_TYPE_I4
  97 #endif
  98
  99 static int stack_type [] = {
 100         STACK_TYPE_I4, /*I1*/
 101         STACK_TYPE_I4, /*U1*/
 102         STACK_TYPE_I4, /*I2*/
 103         STACK_TYPE_I4, /*U2*/
 104         STACK_TYPE_I4, /*I4*/
 105         STACK_TYPE_I8, /*I8*/
 106         STACK_TYPE_R8, /*R4*/
 107         STACK_TYPE_R8, /*R8*/
 108         STACK_TYPE_O,  /*O*/
 109         STACK_TYPE_MP, /*P*/
 110         STACK_TYPE_VT
 111 };
 112
 113 static void
 114 grow_code (TransformData *td)
 115 {
 116         unsigned int old_ip_offset = td->new_ip - td->new_code;
 117         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 118         g_assert (old_ip_offset <= td->max_code_size);
 119         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 120         td->new_code_end = td->new_code + td->max_code_size;
 121         td->new_ip = td->new_code + old_ip_offset;
 122         td->last_new_ip = td->new_code + old_last_ip_offset;
 123 }
 124
 125 #define ENSURE_CODE(td, n) \
 126         do { \
 127                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 128                         grow_code (td); \
 129         } while (0)
 130
 131 #define ADD_CODE(td, n) \
 132         do { \
 133                 if ((td)->new_ip == (td)->new_code_end) \
 134                         grow_code (td); \
 135                 *(td)->new_ip++ = (n); \
 136         } while (0)
 137
 138 #define CHECK_STACK(td, n) \
 139         do { \
 140                 int stack_size = (td)->sp - (td)->stack; \
 141                 if (stack_size < (n)) \
 142                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 143                                 (td)->method->klass->name, (td)->method->name, \
 144                                 stack_size, n, (td)->ip - (td)->il_code); \
 145         } while (0)
 146
 147 #define ENSURE_I4(td, sp_off) \
 148         do { \
 149                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 150                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 151         } while (0)
 152
 153 static void
 154 handle_branch(TransformData *td, int short_op, int long_op, int offset)
 155 {
 156         int shorten_branch = 0;
 157         int target = td->ip + offset - td->il_code;
 158         if (target < 0 || target >= td->code_size)
 159                 g_assert_not_reached ();
 160         if (offset > 0 && td->stack_height [target] < 0) {
 161                 td->stack_height [target] = td->sp - td->stack;
 162                 if (td->stack_height [target] > 0)
 163                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 164                 td->vt_stack_size [target] = td->vt_sp;
 165         }
 166         if (offset < 0) {
 167                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 168                 if (offset >= -32768) {
 169                         shorten_branch = 1;
 170                 }
 171         } else {
 172                 int prev = td->forward_refs [target];
 173                 td->forward_refs [td->ip - td->il_code] = prev;
 174                 td->forward_refs [target] = td->ip - td->il_code;
 175                 offset = 0;
 176                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 177                         shorten_branch = 1;
 178         }
 179         if (shorten_branch) {
 180                 ADD_CODE(td, short_op);
 181                 ADD_CODE(td, offset);
 182         } else {
 183                 ADD_CODE(td, long_op);
 184                 ADD_CODE(td, * (unsigned short *)(&offset));
 185                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 186         }
 187 }
 188
 189 static void
 190 one_arg_branch(TransformData *td, int mint_op, int offset)
 191 {
 192         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 193         int long_op = mint_op + type - STACK_TYPE_I4;
 194         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 195         CHECK_STACK(td, 1);
 196         --td->sp;
 197         handle_branch (td, short_op, long_op, offset);
 198 }
 199
 200 static void
 201 two_arg_branch(TransformData *td, int mint_op, int offset)
 202 {
 203         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 204         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 205         int long_op = mint_op + type1 - STACK_TYPE_I4;
 206         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 207         CHECK_STACK(td, 2);
 208         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 209                 ADD_CODE(td, MINT_CONV_I8_I4);
 210                 td->in_offsets [td->ip - td->il_code]++;
 211         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 212                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 213                 td->in_offsets [td->ip - td->il_code]++;
 214         } else if (type1 != type2) {
 215                 g_warning("%s.%s: branch type mismatch %d %d",
 216                         td->method->klass->name, td->method->name,
 217                         td->sp [-1].type, td->sp [-2].type);
 218         }
 219         td->sp -= 2;
 220         handle_branch (td, short_op, long_op, offset);
 221 }
 222
 223 static void
 224 unary_arith_op(TransformData *td, int mint_op)
 225 {
 226         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 227         CHECK_STACK(td, 1);
 228         ADD_CODE(td, op);
 229 }
 230
 231 static void
 232 binary_arith_op(TransformData *td, int mint_op)
 233 {
 234         int type1 = td->sp [-2].type;
 235         int type2 = td->sp [-1].type;
 236         int op;
 237 #if SIZEOF_VOID_P == 8
 238         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 239                 ADD_CODE(td, MINT_CONV_I8_I4);
 240                 type2 = STACK_TYPE_I8;
 241         }
 242         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 243                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 244                 type1 = STACK_TYPE_I8;
 245                 td->sp [-2].type = STACK_TYPE_I8;
 246         }
 247 #endif
 248         if (type1 == STACK_TYPE_MP)
 249                 type1 = STACK_TYPE_I;
 250         if (type2 == STACK_TYPE_MP)
 251                 type2 = STACK_TYPE_I;
 252         if (type1 != type2) {
 253                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 254                         td->method->klass->name, td->method->name,
 255                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 256         }
 257         op = mint_op + type1 - STACK_TYPE_I4;
 258         CHECK_STACK(td, 2);
 259         ADD_CODE(td, op);
 260         --td->sp;
 261 }
 262
 263 static void
 264 binary_int_op(TransformData *td, int mint_op)
 265 {
 266         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 267         CHECK_STACK(td, 2);
 268         if (td->sp [-1].type != td->sp [-2].type)
 269                 g_warning("%s.%s: int type mismatch", td->method->klass->name, td->method->name);
 270         ADD_CODE(td, op);
 271         --td->sp;
 272 }
 273
 274 static void
 275 shift_op(TransformData *td, int mint_op)
 276 {
 277         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 278         CHECK_STACK(td, 2);
 279         if (td->sp [-1].type != STACK_TYPE_I4) {
 280                 g_warning("%s.%s: shift type mismatch %d",
 281                         td->method->klass->name, td->method->name,
 282                         td->sp [-2].type);
 283         }
 284         ADD_CODE(td, op);
 285         --td->sp;
 286 }
 287
 288 static int
 289 mint_type(MonoType *type)
 290 {
 291         if (type->byref)
 292                 return MINT_TYPE_P;
 293 enum_type:
 294         switch (type->type) {
 295         case MONO_TYPE_I1:
 296                 return MINT_TYPE_I1;
 297         case MONO_TYPE_U1:
 298         case MONO_TYPE_BOOLEAN:
 299                 return MINT_TYPE_U1;
 300         case MONO_TYPE_I2:
 301                 return MINT_TYPE_I2;
 302         case MONO_TYPE_U2:
 303         case MONO_TYPE_CHAR:
 304                 return MINT_TYPE_U2;
 305         case MONO_TYPE_I4:
 306         case MONO_TYPE_U4:
 307                 return MINT_TYPE_I4;
 308         case MONO_TYPE_I:
 309         case MONO_TYPE_U:
 310 #if SIZEOF_VOID_P == 4
 311                 return MINT_TYPE_I4;
 312 #else
 313                 return MINT_TYPE_I8;
 314 #endif
 315         case MONO_TYPE_PTR:
 316                 return MINT_TYPE_P;
 317         case MONO_TYPE_R4:
 318                 return MINT_TYPE_R4;
 319         case MONO_TYPE_I8:
 320         case MONO_TYPE_U8:
 321                 return MINT_TYPE_I8;
 322         case MONO_TYPE_R8:
 323                 return MINT_TYPE_R8;
 324         case MONO_TYPE_STRING:
 325         case MONO_TYPE_SZARRAY:
 326         case MONO_TYPE_CLASS:
 327         case MONO_TYPE_OBJECT:
 328         case MONO_TYPE_ARRAY:
 329                 return MINT_TYPE_O;
 330         case MONO_TYPE_VALUETYPE:
 331                 if (type->data.klass->enumtype) {
 332                         type = mono_class_enum_basetype (type->data.klass);
 333                         goto enum_type;
 334                 } else
 335                         return MINT_TYPE_VT;
 336         default:
 337                 g_warning ("got type 0x%02x", type->type);
 338                 g_assert_not_reached ();
 339         }
 340         return -1;
 341 }
 342
 343 static int
 344 can_store (int stack_type, int var_type)
 345 {
 346         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 347                 stack_type = STACK_TYPE_I;
 348         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 349                 var_type = STACK_TYPE_I;
 350         return stack_type == var_type;
 351 }
 352
 353 #define SET_SIMPLE_TYPE(s, ty) \
 354         do { \
 355                 (s)->type = (ty); \
 356                 (s)->flags = 0; \
 357                 (s)->klass = NULL; \
 358         } while (0)
 359
 360 #define SET_TYPE(s, ty, k) \
 361         do { \
 362                 (s)->type = (ty); \
 363                 (s)->flags = 0; \
 364                 (s)->klass = k; \
 365         } while (0)
 366
 367 #define PUSH_SIMPLE_TYPE(td, ty) \
 368         do { \
 369                 int sp_height; \
 370                 (td)->sp++; \
 371                 sp_height = (td)->sp - (td)->stack; \
 372                 if (sp_height > (td)->max_stack_height) \
 373                         (td)->max_stack_height = sp_height; \
 374                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 375         } while (0)
 376
 377 #define PUSH_TYPE(td, ty, k) \
 378         do { \
 379                 int sp_height; \
 380                 (td)->sp++; \
 381                 sp_height = (td)->sp - (td)->stack; \
 382                 if (sp_height > (td)->max_stack_height) \
 383                         (td)->max_stack_height = sp_height; \
 384                 SET_TYPE((td)->sp - 1, ty, k); \
 385         } while (0)
 386
 387 #define PUSH_VT(td, size) \
 388         do { \
 389                 (td)->vt_sp += ((size) + 7) & ~7; \
 390                 if ((td)->vt_sp > (td)->max_vt_sp) \
 391                         (td)->max_vt_sp = (td)->vt_sp; \
 392         } while (0)
 393
 394 #define POP_VT(td, size) \
 395         do { \
 396                 (td)->vt_sp -= ((size) + 7) & ~7; \
 397         } while (0)
 398
 399 #if NO_UNALIGNED_ACCESS
 400 #define WRITE32(td, v) \
 401         do { \
 402                 ENSURE_CODE(td, 2); \
 403                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 404                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 405                 (td)->new_ip += 2; \
 406         } while (0)
 407
 408 #define WRITE64(td, v) \
 409         do { \
 410                 ENSURE_CODE(td, 4); \
 411                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 412                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 413                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 414                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 415                 (td)->new_ip += 4; \
 416         } while (0)
 417 #else
 418 #define WRITE32(td, v) \
 419         do { \
 420                 ENSURE_CODE(td, 2); \
 421                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 422                 (td)->new_ip += 2; \
 423         } while (0)
 424
 425 #define WRITE64(td, v) \
 426         do { \
 427                 ENSURE_CODE(td, 4); \
 428                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 429                 (td)->new_ip += 4; \
 430         } while (0)
 431
 432 #endif
 433
 434 static void
 435 load_arg(TransformData *td, int n)
 436 {
 437         int mt;
 438         MonoClass *klass = NULL;
 439         if (n == 0 && mono_method_signature (td->method)->hasthis) {
 440                 if (td->method->klass->valuetype)
 441                         mt = MINT_TYPE_P;
 442                 else {
 443                         mt = MINT_TYPE_O;
 444                         klass = td->method->klass;
 445                 }
 446                 ADD_CODE(td, MINT_LDTHIS);
 447         } else {
 448                 MonoType *type;
 449                 n -= mono_method_signature (td->method)->hasthis;
 450                 type = mono_method_signature (td->method)->params [n];
 451                 mt = mint_type (type);
 452                 if (mt == MINT_TYPE_VT) {
 453                         gint32 size;
 454                         if (mono_method_signature (td->method)->pinvoke)
 455                                 size = mono_class_native_size (type->data.klass, NULL);
 456                         else
 457                                 size = mono_class_value_size (type->data.klass, NULL);
 458                         PUSH_VT(td, size);
 459                         ADD_CODE(td, MINT_LDARG_VT);
 460                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 461                         WRITE32(td, &size);
 462                         klass = type->data.klass;
 463                 } else {
 464                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 465                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 466                         if (mt == MINT_TYPE_O)
 467                                 klass = mono_class_from_mono_type (type);
 468                 }
 469         }
 470         PUSH_TYPE(td, stack_type[mt], klass);
 471 }
 472
 473 static void
 474 store_arg(TransformData *td, int n)
 475 {
 476         int mt;
 477         CHECK_STACK (td, 1);
 478         if (n == 0 && mono_method_signature (td->method)->hasthis)
 479                 ADD_CODE(td, MINT_STTHIS);
 480         else {
 481                 MonoType *type;
 482                 n -= mono_method_signature (td->method)->hasthis;
 483                 type = mono_method_signature (td->method)->params [n];
 484                 mt = mint_type (type);
 485                 if (mt == MINT_TYPE_VT) {
 486                         gint32 size;
 487                         if (mono_method_signature (td->method)->pinvoke)
 488                                 size = mono_class_native_size (type->data.klass, NULL);
 489                         else
 490                                 size = mono_class_value_size (type->data.klass, NULL);
 491                         ADD_CODE(td, MINT_STARG_VT);
 492                         ADD_CODE(td, n);
 493                         WRITE32(td, &size);
 494                         if (td->sp [-1].type == STACK_TYPE_VT)
 495                                 POP_VT(td, size);
 496                 } else {
 497                         ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 498                         ADD_CODE(td, td->rtm->arg_offsets [n]);
 499                 }
 500         }
 501         --td->sp;
 502 }
 503
 504 static void
 505 store_inarg(TransformData *td, int n)
 506 {
 507         MonoType *type = mono_method_signature (td->method)->params [n];
 508         int mt = mint_type (type);
 509         if (mt == MINT_TYPE_VT) {
 510                 gint32 size;
 511                 if (mono_method_signature (td->method)->pinvoke)
 512                         size = mono_class_native_size (type->data.klass, NULL);
 513                 else
 514                         size = mono_class_value_size (type->data.klass, NULL);
 515                 ADD_CODE(td, MINT_STINARG_VT);
 516                 ADD_CODE(td, n);
 517                 WRITE32(td, &size);
 518         } else {
 519                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 520                 ADD_CODE(td, n);
 521         }
 522 }
 523
 524 static void
 525 load_local(TransformData *td, int n)
 526 {
 527         MonoType *type = td->header->locals [n];
 528         int mt = mint_type (type);
 529         int offset = td->rtm->local_offsets [n];
 530         MonoClass *klass = NULL;
 531         if (mt == MINT_TYPE_VT) {
 532                 gint32 size = mono_class_value_size (type->data.klass, NULL);
 533                 PUSH_VT(td, size);
 534                 ADD_CODE(td, MINT_LDLOC_VT);
 535                 ADD_CODE(td, offset); /*FIX for large offset */
 536                 WRITE32(td, &size);
 537                 klass = type->data.klass;
 538         } else {
 539                 if (mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 540                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 541                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 542                 } else if (mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 543                         td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 544                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 545                 } else {
 546                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 547                         ADD_CODE(td, offset); /*FIX for large offset */
 548                 }
 549                 if (mt == MINT_TYPE_O)
 550                         klass = mono_class_from_mono_type (type);
 551         }
 552         PUSH_TYPE(td, stack_type[mt], klass);
 553 }
 554
 555 static void
 556 store_local(TransformData *td, int n)
 557 {
 558         MonoType *type = td->header->locals [n];
 559         int mt = mint_type (type);
 560         int offset = td->rtm->local_offsets [n];
 561         CHECK_STACK (td, 1);
 562 #if SIZEOF_VOID_P == 8
 563         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 564                 ADD_CODE(td, MINT_CONV_I8_I4);
 565                 td->sp [-1].type = STACK_TYPE_I8;
 566         }
 567 #endif
 568         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 569                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 570                         td->method->klass->name, td->method->name,
 571                         stack_type [mt], td->sp [-1].type);
 572         }
 573         if (mt == MINT_TYPE_VT) {
 574                 gint32 size = mono_class_value_size (type->data.klass, NULL);
 575                 ADD_CODE(td, MINT_STLOC_VT);
 576                 ADD_CODE(td, offset); /*FIX for large offset */
 577                 WRITE32(td, &size);
 578                 if (td->sp [-1].type == STACK_TYPE_VT)
 579                         POP_VT(td, size);
 580         } else {
 581                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 582                 ADD_CODE(td, offset); /*FIX for large offset */
 583         }
 584         --td->sp;
 585 }
 586
 587 #define SIMPLE_OP(td, op) \
 588         do { \
 589                 ADD_CODE(&td, op); \
 590                 ++td.ip; \
 591         } while (0)
 592
 593 static guint16
 594 get_data_item_index (TransformData *td, void *ptr)
 595 {
 596         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 597         guint index;
 598         if (p != NULL)
 599                 return GPOINTER_TO_UINT (p) - 1;
 600         if (td->max_data_items == td->n_data_items) {
 601                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 602                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 603         }
 604         index = td->n_data_items;
 605         td->data_items [index] = ptr;
 606         ++td->n_data_items;
 607         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 608         return index;
 609 }
 610
 611 static void
 612 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start)
 613 {
 614         MonoMethodHeader *header = mono_method_get_header (method);
 615         MonoMethodSignature *signature = mono_method_signature (method);
 616         MonoImage *image = method->klass->image;
 617         MonoDomain *domain = mono_domain_get ();
 618         MonoGenericContext *generic_context = NULL;
 619         MonoError error;
 620         int offset, mt;
 621         int i;
 622         int i32;
 623         MonoClass *klass;
 624         MonoClassField *field;
 625         const unsigned char *end;
 626         int new_in_start_offset;
 627         int body_start_offset;
 628         int target;
 629         guint32 token;
 630         TransformData td;
 631         int generating_code = 1;
 632
 633         if (mono_method_signature (method)->is_inflated)
 634                 generic_context = &((MonoMethodInflated *) method)->context;
 635
 636         memset(&td, 0, sizeof(td));
 637         td.method = method;
 638         td.rtm = rtm;
 639         td.is_bb_start = is_bb_start;
 640         td.il_code = header->code;
 641         td.code_size = header->code_size;
 642         td.header = header;
 643         td.max_code_size = td.code_size;
 644         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 645         td.new_code_end = td.new_code + td.max_code_size;
 646         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 647         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 648         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 649         td.stack_height = g_malloc(header->code_size * sizeof(int));
 650         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 651         td.n_data_items = 0;
 652         td.max_data_items = 0;
 653         td.data_items = NULL;
 654         td.data_hash = g_hash_table_new (NULL, NULL);
 655         rtm->data_items = td.data_items;
 656         for (i = 0; i < header->code_size; i++) {
 657                 td.forward_refs [i] = -1;
 658                 td.stack_height [i] = -1;
 659         }
 660         td.new_ip = td.new_code;
 661         td.last_new_ip = NULL;
 662
 663         td.stack = g_malloc0(header->max_stack * sizeof(td.stack[0]));
 664         td.sp = td.stack;
 665         td.max_stack_height = 0;
 666
 667         for (i = 0; i < header->num_clauses; i++) {
 668                 MonoExceptionClause *c = header->clauses + i;
 669                 td.stack_height [c->handler_offset] = 0;
 670                 td.vt_stack_size [c->handler_offset] = 0;
 671                 td.is_bb_start [c->handler_offset] = 1;
 672                 if (c->flags == MONO_EXCEPTION_CLAUSE_NONE) {
 673                         td.stack_height [c->handler_offset] = 1;
 674                         td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
 675                         td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
 676                         td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
 677                 }
 678         }
 679
 680         td.ip = header->code;
 681         end = td.ip + header->code_size;
 682
 683         if (mono_interp_traceopt) {
 684                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
 685                 char *name = mono_method_full_name (method, TRUE);
 686                 g_print ("Method %s, original code:\n", name);
 687                 g_print ("%s\n", tmp);
 688                 g_free (tmp);
 689                 g_free (name);
 690         }
 691
 692         for (i = 0; i < signature->param_count; i++)
 693                 store_inarg(&td, i);
 694
 695         body_start_offset = td.new_ip - td.new_code;
 696
 697         for (i = 0; i < header->num_locals; i++) {
 698                 int mt = mint_type(header->locals [i]);
 699                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O) {
 700                         ADD_CODE(&td, MINT_INITLOCALS);
 701                         break;
 702                 }
 703         }
 704
 705         while (td.ip < end) {
 706                 int in_offset;
 707
 708                 g_assert (td.sp >= td.stack);
 709                 g_assert (td.vt_sp < 0x10000000);
 710                 in_offset = td.ip - header->code;
 711                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
 712                 new_in_start_offset = td.new_ip - td.new_code;
 713                 td.in_start = td.ip;
 714                 while (td.forward_refs [in_offset] >= 0) {
 715                         int j = td.forward_refs [in_offset];
 716                         int slot;
 717                         td.forward_refs [in_offset] = td.forward_refs [j];
 718                         if (td.in_offsets [j] < 0) {
 719                                 int old_switch_offset = -td.in_offsets [j];
 720                                 int new_switch_offset = td.in_offsets [old_switch_offset];
 721                                 int switch_case = (j - old_switch_offset - 5) / 4;
 722                                 int n_cases = read32 (header->code + old_switch_offset + 1);
 723                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
 724                                 slot = new_switch_offset + 3 + 2 * switch_case;
 725                                 td.new_code [slot] = * (unsigned short *)(&offset);
 726                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
 727                         } else {
 728                                 int op = td.new_code [td.in_offsets [j]];
 729                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
 730                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
 731                                         g_assert (offset <= 32767);
 732                                         slot = td.in_offsets [j] + 1;
 733                                         td.new_code [slot] = offset;
 734                                 } else {
 735                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
 736                                         slot = td.in_offsets [j] + 1;
 737                                         td.new_code [slot] = * (unsigned short *)(&offset);
 738                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
 739                                 }
 740                         }
 741                 }
 742                 if (td.stack_height [in_offset] >= 0) {
 743                         g_assert (is_bb_start [in_offset]);
 744                         if (td.stack_height [in_offset] > 0)
 745                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
 746                         td.sp = td.stack + td.stack_height [in_offset];
 747                         td.vt_sp = td.vt_stack_size [in_offset];
 748                 }
 749                 if (is_bb_start [in_offset]) {
 750                         generating_code = 1;
 751                 }
 752                 if (!generating_code) {
 753                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
 754                                 ++td.ip;
 755                         continue;
 756                 }
 757                 if (mono_interp_traceopt > 1) {
 758                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
 759                                 td.ip - td.il_code,
 760                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
 761                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
 762                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
 763                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
 764                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
 765                                 (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) : "",
 766                                 td.vt_sp, td.max_vt_sp);
 767                 }
 768                 switch (*td.ip) {
 769                 case CEE_NOP:
 770                         /* lose it */
 771                         ++td.ip;
 772                         break;
 773                 case CEE_BREAK:
 774                         SIMPLE_OP(td, MINT_BREAK);
 775                         break;
 776                 case CEE_LDARG_0:
 777                 case CEE_LDARG_1:
 778                 case CEE_LDARG_2:
 779                 case CEE_LDARG_3:
 780                         load_arg (&td, *td.ip - CEE_LDARG_0);
 781                         ++td.ip;
 782                         break;
 783                 case CEE_LDLOC_0:
 784                 case CEE_LDLOC_1:
 785                 case CEE_LDLOC_2:
 786                 case CEE_LDLOC_3:
 787                         load_local (&td, *td.ip - CEE_LDLOC_0);
 788                         ++td.ip;
 789                         break;
 790                 case CEE_STLOC_0:
 791                 case CEE_STLOC_1:
 792                 case CEE_STLOC_2:
 793                 case CEE_STLOC_3:
 794                         store_local (&td, *td.ip - CEE_STLOC_0);
 795                         ++td.ip;
 796                         break;
 797                 case CEE_LDARG_S:
 798                         load_arg (&td, ((guint8 *)td.ip)[1]);
 799                         td.ip += 2;
 800                         break;
 801                 case CEE_LDARGA_S: {
 802                         int n = ((guint8 *)td.ip)[1];
 803                         if (n == 0 && signature->hasthis)
 804                                 ADD_CODE(&td, MINT_LDTHISA);
 805                         else {
 806                                 ADD_CODE(&td, MINT_LDARGA);
 807                                 ADD_CODE(&td, td.rtm->arg_offsets [n - signature->hasthis]);
 808                         }
 809                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
 810                         td.ip += 2;
 811                         break;
 812                 }
 813                 case CEE_STARG_S:
 814                         store_arg (&td, ((guint8 *)td.ip)[1]);
 815                         td.ip += 2;
 816                         break;
 817                 case CEE_LDLOC_S:
 818                         load_local (&td, ((guint8 *)td.ip)[1]);
 819                         td.ip += 2;
 820                         break;
 821                 case CEE_LDLOCA_S:
 822                         ADD_CODE(&td, MINT_LDLOCA_S);
 823                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
 824                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
 825                         td.ip += 2;
 826                         break;
 827                 case CEE_STLOC_S:
 828                         store_local (&td, ((guint8 *)td.ip)[1]);
 829                         td.ip += 2;
 830                         break;
 831                 case CEE_LDNULL:
 832                         SIMPLE_OP(td, MINT_LDNULL);
 833                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
 834                         break;
 835                 case CEE_LDC_I4_M1:
 836                         SIMPLE_OP(td, MINT_LDC_I4_M1);
 837                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
 838                         break;
 839                 case CEE_LDC_I4_0:
 840                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
 841                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
 842                                 SIMPLE_OP(td, MINT_CEQ0_I4);
 843                                 td.ip += 2;
 844                         } else {
 845                                 SIMPLE_OP(td, MINT_LDC_I4_0);
 846                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
 847                         }
 848                         break;
 849                 case CEE_LDC_I4_1:
 850                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
 851                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
 852                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
 853                                 td.ip += 2;
 854                         } else {
 855                                 SIMPLE_OP(td, MINT_LDC_I4_1);
 856                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
 857                         }
 858                         break;
 859                 case CEE_LDC_I4_2:
 860                 case CEE_LDC_I4_3:
 861                 case CEE_LDC_I4_4:
 862                 case CEE_LDC_I4_5:
 863                 case CEE_LDC_I4_6:
 864                 case CEE_LDC_I4_7:
 865                 case CEE_LDC_I4_8:
 866                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
 867                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
 868                         break;
 869                 case CEE_LDC_I4_S:
 870                         ADD_CODE(&td, MINT_LDC_I4_S);
 871                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
 872                         td.ip += 2;
 873                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
 874                         break;
 875                 case CEE_LDC_I4:
 876                         i32 = read32 (td.ip + 1);
 877                         ADD_CODE(&td, MINT_LDC_I4);
 878                         WRITE32(&td, &i32);
 879                         td.ip += 5;
 880                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
 881                         break;
 882                 case CEE_LDC_I8: {
 883                         gint64 val = read64 (td.ip + 1);
 884                         ADD_CODE(&td, MINT_LDC_I8);
 885                         WRITE64(&td, &val);
 886                         td.ip += 9;
 887                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
 888                         break;
 889                 }
 890                 case CEE_LDC_R4: {
 891                         float val;
 892                         readr4 (td.ip + 1, &val);
 893                         ADD_CODE(&td, MINT_LDC_R4);
 894                         WRITE32(&td, &val);
 895                         td.ip += 5;
 896                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
 897                         break;
 898                 }
 899                 case CEE_LDC_R8: {
 900                         double val;
 901                         readr8 (td.ip + 1, &val);
 902                         ADD_CODE(&td, MINT_LDC_R8);
 903                         WRITE64(&td, &val);
 904                         td.ip += 9;
 905                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
 906                         break;
 907                 }
 908                 case CEE_DUP: {
 909                         int type = td.sp [-1].type;
 910                         MonoClass *klass = td.sp [-1].klass;
 911                         if (td.sp [-1].type == STACK_TYPE_VT) {
 912                                 gint32 size = mono_class_value_size (klass, NULL);
 913                                 PUSH_VT(&td, size);
 914                                 ADD_CODE(&td, MINT_DUP_VT);
 915                                 WRITE32(&td, &size);
 916                                 td.ip ++;
 917                         } else
 918                                 SIMPLE_OP(td, MINT_DUP);
 919                         PUSH_TYPE(&td, type, klass);
 920                         break;
 921                 }
 922                 case CEE_POP:
 923                         CHECK_STACK(&td, 1);
 924                         SIMPLE_OP(td, MINT_POP);
 925                         if (td.sp [-1].type == STACK_TYPE_VT) {
 926                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
 927                                 size = (size + 7) & ~7;
 928                                 ADD_CODE(&td, MINT_VTRESULT);
 929                                 ADD_CODE(&td, 0);
 930                                 WRITE32(&td, &size);
 931                                 td.vt_sp -= size;
 932                         }
 933                         --td.sp;
 934                         break;
 935                 case CEE_JMP: {
 936                         MonoMethod *m;
 937                         if (td.sp > td.stack)
 938                                 g_warning ("CEE_JMP: stack must be empty");
 939                         token = read32 (td.ip + 1);
 940                         m = mono_get_method_full (image, token, NULL, generic_context);
 941                         ADD_CODE (&td, MINT_JMP);
 942                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
 943                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 944                         td.ip += 5;
 945                         break;
 946                 }
 947                 case CEE_CALLVIRT: /* Fall through */
 948                 case CEE_CALLI:    /* Fall through */
 949                 case CEE_CALL: {
 950                         MonoMethod *m;
 951                         MonoMethodSignature *csignature;
 952                         int virtual = *td.ip == CEE_CALLVIRT;
 953                         int calli = *td.ip == CEE_CALLI;
 954                         int i;
 955                         guint32 vt_stack_used = 0;
 956                         guint32 vt_res_size = 0;
 957                         int op = -1;
 958                         int native = 0;
 959                         int is_void = 0;
 960
 961                         token = read32 (td.ip + 1);
 962                         if (calli) {
 963                                 CHECK_STACK(&td, 1);
 964                                 native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td.sp [-1].type == STACK_TYPE_I);
 965                                 --td.sp;
 966                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
 967                                         csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 968                                 else
 969                                         csignature = mono_metadata_parse_signature (image, token);
 970                                 m = NULL;
 971                         } else {
 972                                 if (method->wrapper_type == MONO_WRAPPER_NONE)
 973                                         m = mono_get_method_full (image, token, NULL, generic_context);
 974                                 else
 975                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 976                                 csignature = mono_method_signature (m);
 977                                 if (m->klass == mono_defaults.string_class) {
 978                                         if (m->name [0] == 'g') {
 979                                                 if (strcmp (m->name, "get_Chars") == 0)
 980                                                         op = MINT_GETCHR;
 981                                                 else if (strcmp (m->name, "get_Length") == 0)
 982                                                         op = MINT_STRLEN;
 983                                         }
 984                                 } else if (m->klass == mono_defaults.array_class) {
 985                                         if (strcmp (m->name, "get_Rank") == 0)
 986                                                 op = MINT_ARRAY_RANK;
 987                                         else if (strcmp (m->name, "get_Length") == 0)
 988                                                 op = MINT_LDLEN;
 989                                 }
 990                         }
 991                         CHECK_STACK(&td, csignature->param_count + csignature->hasthis);
 992                         if (!calli && (!virtual || (m->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 993                                 (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 994                                 (m->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0) {
 995                                 int called_inited = mono_class_vtable (domain, m->klass)->initialized;
 996                                 MonoMethodHeader *mheader = mono_method_get_header (m);
 997
 998                                 if (/*mono_metadata_signature_equal (method->signature, m->signature) */ method == m && *(td.ip + 5) == CEE_RET) {
 999                                         int offset;
1000                                         if (mono_interp_traceopt)
1001                                                 g_print ("Optimize tail call of %s.%s\n", m->klass->name, m->name);
1002                                         for (i = csignature->param_count - 1; i >= 0; --i)
1003                                                 store_arg (&td, i + csignature->hasthis);
1004
1005                                         if (csignature->hasthis) {
1006                                                 ADD_CODE(&td, MINT_STTHIS);
1007                                                 --td.sp;
1008                                         }
1009                                         ADD_CODE(&td, MINT_BR_S);
1010                                         offset = body_start_offset - ((td.new_ip - 1) - td.new_code);
1011                                         ADD_CODE(&td, offset);
1012                                         if (!is_bb_start [td.ip + 5 - td.il_code])
1013                                                 ++td.ip; /* gobble the CEE_RET if it isn't branched to */
1014                                         td.ip += 5;
1015                                         break;
1016                                 } else {
1017                                         /* mheader might not exist if this is a delegate invoc, etc */
1018                                         if (mheader && *mheader->code == CEE_RET && called_inited) {
1019                                                 if (mono_interp_traceopt)
1020                                                         g_print ("Inline (empty) call of %s.%s\n", m->klass->name, m->name);
1021                                                 for (i = 0; i < csignature->param_count; i++)
1022                                                         ADD_CODE(&td, MINT_POP); /*FIX: vt */
1023                                                 if (csignature->hasthis) {
1024                                                         if (virtual)
1025                                                                 ADD_CODE(&td, MINT_CKNULL);
1026                                                         ADD_CODE(&td, MINT_POP);
1027                                                 }
1028                                                 td.sp -= csignature->param_count + csignature->hasthis;
1029                                                 td.ip += 5;
1030                                                 break;
1031                                         }
1032                                 }
1033                         }
1034                         if (method->wrapper_type == MONO_WRAPPER_NONE && m != NULL) {
1035                                 if (m->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
1036                                         m = mono_marshal_get_native_wrapper (m, FALSE, FALSE);
1037                                 if (!virtual && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
1038                                         m = mono_marshal_get_synchronized_wrapper (m);
1039                         }
1040                         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
1041                         td.sp -= csignature->param_count + csignature->hasthis;
1042                         for (i = 0; i < csignature->param_count; ++i) {
1043                                 if (td.sp [i + csignature->hasthis].type == STACK_TYPE_VT) {
1044                                         gint32 size;
1045                                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
1046                                                 size = mono_class_native_size (csignature->params [i]->data.klass, NULL);
1047                                         else
1048                                                 size = mono_class_value_size (csignature->params [i]->data.klass, NULL);
1049                                         size = (size + 7) & ~7;
1050                                         vt_stack_used += size;
1051                                 }
1052                         }
1053
1054                         /* need to handle typedbyref ... */
1055                         if (csignature->ret->type != MONO_TYPE_VOID) {
1056                                 int mt = mint_type(csignature->ret);
1057                                 MonoClass *klass = NULL;
1058                                 if (mt == MINT_TYPE_VT) {
1059                                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
1060                                                 vt_res_size = mono_class_native_size (csignature->ret->data.klass, NULL);
1061                                         else
1062                                                 vt_res_size = mono_class_value_size (csignature->ret->data.klass, NULL);
1063                                         PUSH_VT(&td, vt_res_size);
1064                                         klass = csignature->ret->data.klass;
1065                                 } else if (mt == MINT_TYPE_O)
1066                                         klass = mono_class_from_mono_type (csignature->ret);
1067                                 PUSH_TYPE(&td, stack_type[mt], klass);
1068                         } else
1069                                 is_void = TRUE;
1070
1071                         if (op >= 0) {
1072                                 ADD_CODE(&td, op);
1073 #if SIZEOF_VOID_P == 8
1074                                 if (op == MINT_LDLEN)
1075                                         ADD_CODE(&td, MINT_CONV_I4_I8);
1076 #endif
1077                         } else {
1078                                 if (calli)
1079                                         ADD_CODE(&td, native ? MINT_CALLI_NAT : MINT_CALLI);
1080                                 else if (virtual)
1081                                         ADD_CODE(&td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
1082                                 else
1083                                         ADD_CODE(&td, is_void ? MINT_VCALL : MINT_CALL);
1084                                 ADD_CODE(&td, get_data_item_index (&td,  calli? (void *)csignature : (void *)mono_interp_get_runtime_method (domain, m, &error)));
1085                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1086                         }
1087                         td.ip += 5;
1088                         if (vt_stack_used != 0 || vt_res_size != 0) {
1089                                 ADD_CODE(&td, MINT_VTRESULT);
1090                                 ADD_CODE(&td, vt_res_size);
1091                                 WRITE32(&td, &vt_stack_used);
1092                                 td.vt_sp -= vt_stack_used;
1093                         }
1094                         break;
1095                 }
1096                 case CEE_RET: {
1097                         int vt_size = 0;
1098                         if (signature->ret->type != MONO_TYPE_VOID) {
1099                                 --td.sp;
1100                                 if (mint_type(signature->ret) == MINT_TYPE_VT) {
1101                                         vt_size = mono_class_value_size (signature->ret->data.klass, NULL);
1102                                         vt_size = (vt_size + 7) & ~7;
1103                                 }
1104                         }
1105                         if (td.sp > td.stack)
1106                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1107                         if (td.vt_sp != vt_size)
1108                                 g_warning ("%s.%s: CEE_RET: value type stack: %d", td.method->klass->name, td.method->name, td.vt_sp);
1109                         if (vt_size == 0)
1110                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1111                         else {
1112                                 ADD_CODE(&td, MINT_RET_VT);
1113                                 WRITE32(&td, &vt_size);
1114                                 ++td.ip;
1115                         }
1116                         generating_code = 0;
1117                         break;
1118                 }
1119                 case CEE_BR:
1120                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1121                         td.ip += 5;
1122                         generating_code = 0;
1123                         break;
1124                 case CEE_BR_S:
1125                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1126                         td.ip += 2;
1127                         generating_code = 0;
1128                         break;
1129                 case CEE_BRFALSE:
1130                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1131                         td.ip += 5;
1132                         break;
1133                 case CEE_BRFALSE_S:
1134                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1135                         td.ip += 2;
1136                         break;
1137                 case CEE_BRTRUE:
1138                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1139                         td.ip += 5;
1140                         break;
1141                 case CEE_BRTRUE_S:
1142                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1143                         td.ip += 2;
1144                         break;
1145                 case CEE_BEQ:
1146                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1147                         td.ip += 5;
1148                         break;
1149                 case CEE_BEQ_S:
1150                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1151                         td.ip += 2;
1152                         break;
1153                 case CEE_BGE:
1154                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1155                         td.ip += 5;
1156                         break;
1157                 case CEE_BGE_S:
1158                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1159                         td.ip += 2;
1160                         break;
1161                 case CEE_BGT:
1162                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1163                         td.ip += 5;
1164                         break;
1165                 case CEE_BGT_S:
1166                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1167                         td.ip += 2;
1168                         break;
1169                 case CEE_BLT:
1170                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1171                         td.ip += 5;
1172                         break;
1173                 case CEE_BLT_S:
1174                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1175                         td.ip += 2;
1176                         break;
1177                 case CEE_BLE:
1178                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1179                         td.ip += 5;
1180                         break;
1181                 case CEE_BLE_S:
1182                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1183                         td.ip += 2;
1184                         break;
1185                 case CEE_BNE_UN:
1186                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1187                         td.ip += 5;
1188                         break;
1189                 case CEE_BNE_UN_S:
1190                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1191                         td.ip += 2;
1192                         break;
1193                 case CEE_BGE_UN:
1194                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1195                         td.ip += 5;
1196                         break;
1197                 case CEE_BGE_UN_S:
1198                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1199                         td.ip += 2;
1200                         break;
1201                 case CEE_BGT_UN:
1202                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1203                         td.ip += 5;
1204                         break;
1205                 case CEE_BGT_UN_S:
1206                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1207                         td.ip += 2;
1208                         break;
1209                 case CEE_BLE_UN:
1210                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1211                         td.ip += 5;
1212                         break;
1213                 case CEE_BLE_UN_S:
1214                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1215                         td.ip += 2;
1216                         break;
1217                 case CEE_BLT_UN:
1218                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1219                         td.ip += 5;
1220                         break;
1221                 case CEE_BLT_UN_S:
1222                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1223                         td.ip += 2;
1224                         break;
1225                 case CEE_SWITCH: {
1226                         guint32 n;
1227                         const unsigned char *next_ip;
1228                         const unsigned char *base_ip = td.ip;
1229                         unsigned short *next_new_ip;
1230                         ++td.ip;
1231                         n = read32 (td.ip);
1232                         ADD_CODE(&td, MINT_SWITCH);
1233                         ADD_CODE(&td, * (unsigned short *)(&n));
1234                         ADD_CODE(&td, * ((unsigned short *)&n + 1));
1235                         td.ip += 4;
1236                         next_ip = td.ip + n * 4;
1237                         next_new_ip = td.new_ip + n * 2;
1238                         for (i = 0; i < n; i++) {
1239                                 offset = read32 (td.ip);
1240                                 target = next_ip - td.il_code + offset;
1241                                 if (offset < 0)
1242                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1243                                 else {
1244                                         int prev = td.forward_refs [target];
1245                                         td.forward_refs [td.ip - td.il_code] = prev;
1246                                         td.forward_refs [target] = td.ip - td.il_code;
1247                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1248                                 }
1249                                 ADD_CODE(&td, * (unsigned short *)(&target));
1250                                 ADD_CODE(&td, * ((unsigned short *)&target + 1));
1251                                 td.ip += 4;
1252                         }
1253                         --td.sp;
1254                         break;
1255                 }
1256                 case CEE_LDIND_I1:
1257                         CHECK_STACK (&td, 1);
1258                         SIMPLE_OP (td, MINT_LDIND_I1);
1259                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1260                         break;
1261                 case CEE_LDIND_U1:
1262                         CHECK_STACK (&td, 1);
1263                         SIMPLE_OP (td, MINT_LDIND_U1);
1264                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1265                         break;
1266                 case CEE_LDIND_I2:
1267                         CHECK_STACK (&td, 1);
1268                         SIMPLE_OP (td, MINT_LDIND_I2);
1269                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1270                         break;
1271                 case CEE_LDIND_U2:
1272                         CHECK_STACK (&td, 1);
1273                         SIMPLE_OP (td, MINT_LDIND_U2);
1274                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1275                         break;
1276                 case CEE_LDIND_I4:
1277                         CHECK_STACK (&td, 1);
1278                         SIMPLE_OP (td, MINT_LDIND_I4);
1279                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1280                         break;
1281                 case CEE_LDIND_U4:
1282                         CHECK_STACK (&td, 1);
1283                         SIMPLE_OP (td, MINT_LDIND_U4);
1284                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1285                         break;
1286                 case CEE_LDIND_I8:
1287                         CHECK_STACK (&td, 1);
1288                         SIMPLE_OP (td, MINT_LDIND_I8);
1289                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1290                         break;
1291                 case CEE_LDIND_I:
1292                         CHECK_STACK (&td, 1);
1293                         SIMPLE_OP (td, MINT_LDIND_I);
1294                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1295                         break;
1296                 case CEE_LDIND_R4:
1297                         CHECK_STACK (&td, 1);
1298                         SIMPLE_OP (td, MINT_LDIND_R4);
1299                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1300                         break;
1301                 case CEE_LDIND_R8:
1302                         CHECK_STACK (&td, 1);
1303                         SIMPLE_OP (td, MINT_LDIND_R8);
1304                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1305                         break;
1306                 case CEE_LDIND_REF:
1307                         CHECK_STACK (&td, 1);
1308                         SIMPLE_OP (td, MINT_LDIND_REF);
1309                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1310                         break;
1311                 case CEE_STIND_REF:
1312                         CHECK_STACK (&td, 2);
1313                         SIMPLE_OP (td, MINT_STIND_REF);
1314                         td.sp -= 2;
1315                         break;
1316                 case CEE_STIND_I1:
1317                         CHECK_STACK (&td, 2);
1318                         SIMPLE_OP (td, MINT_STIND_I1);
1319                         td.sp -= 2;
1320                         break;
1321                 case CEE_STIND_I2:
1322                         CHECK_STACK (&td, 2);
1323                         SIMPLE_OP (td, MINT_STIND_I2);
1324                         td.sp -= 2;
1325                         break;
1326                 case CEE_STIND_I4:
1327                         CHECK_STACK (&td, 2);
1328                         SIMPLE_OP (td, MINT_STIND_I4);
1329                         td.sp -= 2;
1330                         break;
1331                 case CEE_STIND_I:
1332                         CHECK_STACK (&td, 2);
1333                         SIMPLE_OP (td, MINT_STIND_I);
1334                         td.sp -= 2;
1335                         break;
1336                 case CEE_STIND_I8:
1337                         CHECK_STACK (&td, 2);
1338                         SIMPLE_OP (td, MINT_STIND_I8);
1339                         td.sp -= 2;
1340                         break;
1341                 case CEE_STIND_R4:
1342                         CHECK_STACK (&td, 2);
1343                         SIMPLE_OP (td, MINT_STIND_R4);
1344                         td.sp -= 2;
1345                         break;
1346                 case CEE_STIND_R8:
1347                         CHECK_STACK (&td, 2);
1348                         SIMPLE_OP (td, MINT_STIND_R8);
1349                         td.sp -= 2;
1350                         break;
1351                 case CEE_ADD:
1352                         binary_arith_op(&td, MINT_ADD_I4);
1353                         ++td.ip;
1354                         break;
1355                 case CEE_SUB:
1356                         binary_arith_op(&td, MINT_SUB_I4);
1357                         ++td.ip;
1358                         break;
1359                 case CEE_MUL:
1360                         binary_arith_op(&td, MINT_MUL_I4);
1361                         ++td.ip;
1362                         break;
1363                 case CEE_DIV:
1364                         binary_arith_op(&td, MINT_DIV_I4);
1365                         ++td.ip;
1366                         break;
1367                 case CEE_DIV_UN:
1368                         binary_arith_op(&td, MINT_DIV_UN_I4);
1369                         ++td.ip;
1370                         break;
1371                 case CEE_REM:
1372                         binary_int_op (&td, MINT_REM_I4);
1373                         ++td.ip;
1374                         break;
1375                 case CEE_REM_UN:
1376                         binary_int_op (&td, MINT_REM_UN_I4);
1377                         ++td.ip;
1378                         break;
1379                 case CEE_AND:
1380                         binary_int_op (&td, MINT_AND_I4);
1381                         ++td.ip;
1382                         break;
1383                 case CEE_OR:
1384                         binary_int_op (&td, MINT_OR_I4);
1385                         ++td.ip;
1386                         break;
1387                 case CEE_XOR:
1388                         binary_int_op (&td, MINT_XOR_I4);
1389                         ++td.ip;
1390                         break;
1391                 case CEE_SHL:
1392                         shift_op (&td, MINT_SHL_I4);
1393                         ++td.ip;
1394                         break;
1395                 case CEE_SHR:
1396                         shift_op (&td, MINT_SHR_I4);
1397                         ++td.ip;
1398                         break;
1399                 case CEE_SHR_UN:
1400                         shift_op (&td, MINT_SHR_UN_I4);
1401                         ++td.ip;
1402                         break;
1403                 case CEE_NEG:
1404                         unary_arith_op (&td, MINT_NEG_I4);
1405                         ++td.ip;
1406                         break;
1407                 case CEE_NOT:
1408                         unary_arith_op (&td, MINT_NOT_I4);
1409                         ++td.ip;
1410                         break;
1411                 case CEE_CONV_U1:
1412                         CHECK_STACK (&td, 1);
1413                         switch (td.sp [-1].type) {
1414                         case STACK_TYPE_R8:
1415                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1416                                 break;
1417                         case STACK_TYPE_I4:
1418                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1419                                 break;
1420                         case STACK_TYPE_I8:
1421                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1422                                 break;
1423                         default:
1424                                 g_assert_not_reached ();
1425                         }
1426                         ++td.ip;
1427                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1428                         break;
1429                 case CEE_CONV_I1:
1430                         CHECK_STACK (&td, 1);
1431                         switch (td.sp [-1].type) {
1432                         case STACK_TYPE_R8:
1433                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1434                                 break;
1435                         case STACK_TYPE_I4:
1436                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1437                                 break;
1438                         case STACK_TYPE_I8:
1439                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1440                                 break;
1441                         default:
1442                                 g_assert_not_reached ();
1443                         }
1444                         ++td.ip;
1445                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1446                         break;
1447                 case CEE_CONV_U2:
1448                         CHECK_STACK (&td, 1);
1449                         switch (td.sp [-1].type) {
1450                         case STACK_TYPE_R8:
1451                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1452                                 break;
1453                         case STACK_TYPE_I4:
1454                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1455                                 break;
1456                         case STACK_TYPE_I8:
1457                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1458                                 break;
1459                         default:
1460                                 g_assert_not_reached ();
1461                         }
1462                         ++td.ip;
1463                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1464                         break;
1465                 case CEE_CONV_I2:
1466                         CHECK_STACK (&td, 1);
1467                         switch (td.sp [-1].type) {
1468                         case STACK_TYPE_R8:
1469                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1470                                 break;
1471                         case STACK_TYPE_I4:
1472                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1473                                 break;
1474                         case STACK_TYPE_I8:
1475                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1476                                 break;
1477                         default:
1478                                 g_assert_not_reached ();
1479                         }
1480                         ++td.ip;
1481                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1482                         break;
1483                 case CEE_CONV_U:
1484                         CHECK_STACK (&td, 1);
1485                         switch (td.sp [-1].type) {
1486                         case STACK_TYPE_R8:
1487 #if SIZEOF_VOID_P == 4
1488                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1489 #else
1490                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1491 #endif
1492                                 break;
1493                         case STACK_TYPE_I4:
1494 #if SIZEOF_VOID_P == 8
1495                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1496 #endif
1497                                 break;
1498                         case STACK_TYPE_I8:
1499 #if SIZEOF_VOID_P == 4
1500                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1501 #endif
1502                                 break;
1503                         default:
1504                                 g_assert_not_reached ();
1505                         }
1506                         ++td.ip;
1507                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1508                         break;
1509                 case CEE_CONV_I:
1510                         CHECK_STACK (&td, 1);
1511                         switch (td.sp [-1].type) {
1512                         case STACK_TYPE_R8:
1513 #if SIZEOF_VOID_P == 8
1514                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1515 #else
1516                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1517 #endif
1518                                 break;
1519                         case STACK_TYPE_I4:
1520 #if SIZEOF_VOID_P == 8
1521                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1522 #endif
1523                                 break;
1524                         case STACK_TYPE_O:
1525                                 break;
1526                         case STACK_TYPE_MP:
1527                                 break;
1528                         case STACK_TYPE_I8:
1529 #if SIZEOF_VOID_P == 4
1530                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1531 #endif
1532                                 break;
1533                         default:
1534                                 g_assert_not_reached ();
1535                         }
1536                         ++td.ip;
1537                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1538                         break;
1539                 case CEE_CONV_U4:
1540                         CHECK_STACK (&td, 1);
1541                         switch (td.sp [-1].type) {
1542                         case STACK_TYPE_R8:
1543                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1544                                 break;
1545                         case STACK_TYPE_I4:
1546                                 break;
1547                         case STACK_TYPE_I8:
1548                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1549                                 break;
1550                         case STACK_TYPE_MP:
1551 #if SIZEOF_VOID_P == 8
1552                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1553 #endif
1554                                 break;
1555                         default:
1556                                 g_assert_not_reached ();
1557                         }
1558                         ++td.ip;
1559                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1560                         break;
1561                 case CEE_CONV_I4:
1562                         CHECK_STACK (&td, 1);
1563                         switch (td.sp [-1].type) {
1564                         case STACK_TYPE_R8:
1565                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1566                                 break;
1567                         case STACK_TYPE_I4:
1568                                 break;
1569                         case STACK_TYPE_I8:
1570                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1571                                 break;
1572                         case STACK_TYPE_MP:
1573 #if SIZEOF_VOID_P == 8
1574                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1575 #endif
1576                                 break;
1577                         default:
1578                                 g_assert_not_reached ();
1579                         }
1580                         ++td.ip;
1581                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1582                         break;
1583                 case CEE_CONV_I8:
1584                         CHECK_STACK (&td, 1);
1585                         switch (td.sp [-1].type) {
1586                         case STACK_TYPE_R8:
1587                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1588                                 break;
1589                         case STACK_TYPE_I4:
1590                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1591                                 break;
1592                         case STACK_TYPE_I8:
1593                                 break;
1594                         case STACK_TYPE_MP:
1595 #if SIZEOF_VOID_P == 4
1596                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1597 #endif
1598                                 break;
1599                         default:
1600                                 g_assert_not_reached ();
1601                         }
1602                         ++td.ip;
1603                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1604                         break;
1605                 case CEE_CONV_R4:
1606                         CHECK_STACK (&td, 1);
1607                         switch (td.sp [-1].type) {
1608                         case STACK_TYPE_R8:
1609                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1610                                 break;
1611                         case STACK_TYPE_I8:
1612                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1613                                 break;
1614                         case STACK_TYPE_I4:
1615                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1616                                 break;
1617                         default:
1618                                 g_assert_not_reached ();
1619                         }
1620                         ++td.ip;
1621                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1622                         break;
1623                 case CEE_CONV_R8:
1624                         CHECK_STACK (&td, 1);
1625                         switch (td.sp [-1].type) {
1626                         case STACK_TYPE_I4:
1627                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1628                                 break;
1629                         case STACK_TYPE_I8:
1630                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1631                                 break;
1632                         case STACK_TYPE_R8:
1633                                 break;
1634                         default:
1635                                 g_assert_not_reached ();
1636                         }
1637                         ++td.ip;
1638                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1639                         break;
1640                 case CEE_CONV_U8:
1641                         CHECK_STACK (&td, 1);
1642                         switch (td.sp [-1].type) {
1643                         case STACK_TYPE_I4:
1644                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1645                                 break;
1646                         case STACK_TYPE_I8:
1647                                 break;
1648                         case STACK_TYPE_R8:
1649                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1650                                 break;
1651                         case STACK_TYPE_MP:
1652 #if SIZEOF_VOID_P == 4
1653                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1654 #endif
1655                                 break;
1656                         default:
1657                                 g_assert_not_reached ();
1658                         }
1659                         ++td.ip;
1660                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1661                         break;
1662 #if 0
1663                 case CEE_CPOBJ: {
1664                         MonoClass *vtklass;
1665                         ++ip;
1666                         vtklass = mono_class_get_full (image, read32 (ip), generic_context);
1667                         ip += 4;
1668                         sp -= 2;
1669                         memcpy (sp [0].data.p, sp [1].data.p, mono_class_value_size (vtklass, NULL));
1670                         break;
1671                 }
1672 #endif
1673                 case CEE_LDOBJ: {
1674                         int size;
1675                         CHECK_STACK (&td, 1);
1676
1677                         token = read32 (td.ip + 1);
1678
1679                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1680                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1681                         else
1682                                 klass = mono_class_get_full (image, token, generic_context);
1683
1684                         ADD_CODE(&td, MINT_LDOBJ);
1685                         ADD_CODE(&td, get_data_item_index(&td, klass));
1686                         if (klass->byval_arg.type == MONO_TYPE_VALUETYPE && !klass->byval_arg.data.klass->enumtype) {
1687                                 size = mono_class_value_size (klass, NULL);
1688                                 PUSH_VT(&td, size);
1689                         }
1690                         td.ip += 5;
1691                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1692                         break;
1693                 }
1694                 case CEE_LDSTR: {
1695                         MonoString *s;
1696                         token = mono_metadata_token_index (read32 (td.ip + 1));
1697                         td.ip += 5;
1698                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1699                                 s = mono_string_new_wrapper(
1700                                         mono_method_get_wrapper_data (method, token));
1701                         }
1702                         else
1703                                 s = mono_ldstr (domain, image, token);
1704                         ADD_CODE(&td, MINT_LDSTR);
1705                         ADD_CODE(&td, get_data_item_index (&td, s));
1706                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1707                         break;
1708                 }
1709                 case CEE_NEWOBJ: {
1710                         MonoMethod *m;
1711                         MonoMethodSignature *csignature;
1712                         guint32 vt_stack_used = 0;
1713                         guint32 vt_res_size = 0;
1714
1715                         td.ip++;
1716                         token = read32 (td.ip);
1717                         td.ip += 4;
1718
1719                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1720                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1721                         else
1722                                 m = mono_get_method_full (image, token, NULL, generic_context);
1723
1724                         csignature = mono_method_signature (m);
1725                         klass = m->klass;
1726                         td.sp -= csignature->param_count;
1727                         ADD_CODE(&td, MINT_NEWOBJ);
1728                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1729                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1730                         if (klass->byval_arg.type == MONO_TYPE_VALUETYPE) {
1731                                 vt_res_size = mono_class_value_size (klass, NULL);
1732                                 PUSH_VT(&td, vt_res_size);
1733                         }
1734                         for (i = 0; i < csignature->param_count; ++i) {
1735                                 int mt = mint_type(csignature->params [i]);
1736                                 if (mt == MINT_TYPE_VT) {
1737                                         gint32 size = mono_class_value_size (csignature->params [i]->data.klass, NULL);
1738                                         size = (size + 7) & ~7;
1739                                         vt_stack_used += size;
1740                                 }
1741                         }
1742                         if (vt_stack_used != 0 || vt_res_size != 0) {
1743                                 ADD_CODE(&td, MINT_VTRESULT);
1744                                 ADD_CODE(&td, vt_res_size);
1745                                 WRITE32(&td, &vt_stack_used);
1746                                 td.vt_sp -= vt_stack_used;
1747                         }
1748                         PUSH_TYPE(&td, stack_type [mint_type (&klass->byval_arg)], klass);
1749                         break;
1750                 }
1751                 case CEE_CASTCLASS:
1752                         CHECK_STACK (&td, 1);
1753                         token = read32 (td.ip + 1);
1754                         klass = mono_class_get_full (image, token, generic_context);
1755                         ADD_CODE(&td, MINT_CASTCLASS);
1756                         ADD_CODE(&td, get_data_item_index (&td, klass));
1757                         td.sp [-1].klass = klass;
1758                         td.ip += 5;
1759                         break;
1760                 case CEE_ISINST:
1761                         CHECK_STACK (&td, 1);
1762                         token = read32 (td.ip + 1);
1763                         klass = mono_class_get_full (image, token, generic_context);
1764                         ADD_CODE(&td, MINT_ISINST);
1765                         ADD_CODE(&td, get_data_item_index (&td, klass));
1766                         td.ip += 5;
1767                         break;
1768                 case CEE_CONV_R_UN:
1769                         switch (td.sp [-1].type) {
1770                         case STACK_TYPE_R8:
1771                                 break;
1772                         case STACK_TYPE_I8:
1773                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
1774                                 break;
1775                         case STACK_TYPE_I4:
1776                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
1777                                 break;
1778                         default:
1779                                 g_assert_not_reached ();
1780                         }
1781                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1782                         ++td.ip;
1783                         break;
1784                 case CEE_UNBOX_ANY: /* let's play a dangerous game, TODO */
1785                 case CEE_UNBOX:
1786                         CHECK_STACK (&td, 1);
1787                         token = read32 (td.ip + 1);
1788
1789                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1790                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1791                         else
1792                                 klass = mono_class_get_full (image, token, generic_context);
1793
1794                         ADD_CODE(&td, MINT_UNBOX);
1795                         ADD_CODE(&td, get_data_item_index (&td, klass));
1796                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1797                         td.ip += 5;
1798                         break;
1799                 case CEE_THROW:
1800                         CHECK_STACK (&td, 1);
1801                         SIMPLE_OP (td, MINT_THROW);
1802                         --td.sp;
1803                         generating_code = 0;
1804                         break;
1805                 case CEE_LDFLDA:
1806                         CHECK_STACK (&td, 1);
1807                         token = read32 (td.ip + 1);
1808                         field = mono_field_from_token (image, token, &klass, generic_context);
1809                         mono_class_init (klass);
1810                         mt = mint_type(field->type);
1811                         ADD_CODE(&td, MINT_LDFLDA);
1812                         ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
1813                         td.ip += 5;
1814                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
1815                         break;
1816                 case CEE_LDFLD: {
1817                         CHECK_STACK (&td, 1);
1818                         token = read32 (td.ip + 1);
1819                         field = mono_field_from_token (image, token, &klass, generic_context);
1820                         mono_class_init (klass);
1821                         mt = mint_type(field->type);
1822                         if (klass->marshalbyref) {
1823                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
1824                                 ADD_CODE(&td, get_data_item_index (&td, field));
1825                         } else  {
1826                                 ADD_CODE(&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
1827                                 ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
1828                         }
1829                         klass = NULL;
1830                         if (mt == MINT_TYPE_VT) {
1831                                 int size = mono_class_value_size (field->type->data.klass, NULL);
1832                                 PUSH_VT(&td, size);
1833                                 WRITE32(&td, &size);
1834                                 klass = field->type->data.klass;
1835                         } else if (mt == MINT_TYPE_O)
1836                                 klass = mono_class_from_mono_type (field->type);
1837                         td.ip += 5;
1838                         SET_TYPE(td.sp - 1, stack_type [mt], klass);
1839                         break;
1840                 }
1841                 case CEE_STFLD:
1842                         CHECK_STACK (&td, 2);
1843                         token = read32 (td.ip + 1);
1844                         field = mono_field_from_token (image, token, &klass, generic_context);
1845                         mono_class_init (klass);
1846                         mt = mint_type(field->type);
1847                         if (klass->marshalbyref) {
1848                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
1849                                 ADD_CODE(&td, get_data_item_index (&td, field));
1850                         } else  {
1851                                 ADD_CODE(&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
1852                                 ADD_CODE(&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
1853                         }
1854                         if (mt == MINT_TYPE_VT) {
1855                                 int size = mono_class_value_size (field->type->data.klass, NULL);
1856                                 POP_VT(&td, size);
1857                                 WRITE32(&td, &size);
1858                         }
1859                         td.ip += 5;
1860                         td.sp -= 2;
1861                         break;
1862                 case CEE_LDSFLDA:
1863                         token = read32 (td.ip + 1);
1864                         field = mono_field_from_token (image, token, &klass, generic_context);
1865                         ADD_CODE(&td, MINT_LDSFLDA);
1866                         ADD_CODE(&td, get_data_item_index (&td, field));
1867                         td.ip += 5;
1868                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1869                         break;
1870                 case CEE_LDSFLD:
1871                         token = read32 (td.ip + 1);
1872                         field = mono_field_from_token (image, token, &klass, generic_context);
1873                         mt = mint_type(field->type);
1874                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
1875                         ADD_CODE(&td, get_data_item_index (&td, field));
1876                         klass = NULL;
1877                         if (mt == MINT_TYPE_VT) {
1878                                 int size = mono_class_value_size (field->type->data.klass, NULL);
1879                                 PUSH_VT(&td, size);
1880                                 WRITE32(&td, &size);
1881                                 klass = field->type->data.klass;
1882                         } else {
1883                                 if (mt == MINT_TYPE_O)
1884                                         klass = mono_class_from_mono_type (field->type);
1885                                 if (!domain->special_static_fields || !g_hash_table_lookup (domain->special_static_fields, field)) {
1886                                         if (mt == MINT_TYPE_O)
1887                                                 td.new_ip [-2] = MINT_LDSFLD_O;
1888                                         else if (mt == MINT_TYPE_I4)
1889                                                 td.new_ip [-2] = MINT_LDSFLD_I4;
1890                                 }
1891                                 ADD_CODE(&td, get_data_item_index (&td, mono_class_vtable (domain, field->parent)));
1892                         }
1893                         td.ip += 5;
1894                         PUSH_TYPE(&td, stack_type [mt], klass);
1895                         break;
1896                 case CEE_STSFLD:
1897                         CHECK_STACK (&td, 1);
1898                         token = read32 (td.ip + 1);
1899                         field = mono_field_from_token (image, token, &klass, generic_context);
1900                         mt = mint_type(field->type);
1901                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
1902                         ADD_CODE(&td, get_data_item_index (&td, field));
1903                         if (mt == MINT_TYPE_VT) {
1904                                 int size = mono_class_value_size (field->type->data.klass, NULL);
1905                                 POP_VT(&td, size);
1906                                 WRITE32(&td, &size);
1907                         }
1908                         td.ip += 5;
1909                         --td.sp;
1910                         break;
1911                 case CEE_STOBJ: {
1912                         int size;
1913                         token = read32 (td.ip + 1);
1914
1915                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1916                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1917                         else
1918                                 klass = mono_class_get_full (image, token, generic_context);
1919
1920                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
1921                         ADD_CODE(&td, get_data_item_index (&td, klass));
1922                         if (td.sp [-1].type == STACK_TYPE_VT) {
1923                                 size = mono_class_value_size (klass, NULL);
1924                                 size = (size + 7) & ~7;
1925                                 td.vt_sp -= size;
1926                         }
1927                         td.ip += 5;
1928                         td.sp -= 2;
1929                         break;
1930                 }
1931                 case CEE_CONV_OVF_I_UN:
1932                         CHECK_STACK (&td, 1);
1933                         switch (td.sp [-1].type) {
1934                         case STACK_TYPE_R8:
1935 #if SIZEOF_VOID_P == 8
1936                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
1937 #else
1938                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
1939 #endif
1940                                 break;
1941                         case STACK_TYPE_I8:
1942                                 /*FIX*/
1943                                 break;
1944                         case STACK_TYPE_I4:
1945 #if SIZEOF_VOID_P == 8
1946                                 ADD_CODE(&td, MINT_CONV_I8_U4);
1947 #endif
1948                                 break;
1949                         default:
1950                                 g_assert_not_reached ();
1951                                 break;
1952                         }
1953                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1954                         ++td.ip;
1955                         break;
1956                 case CEE_CONV_OVF_I8_UN:
1957                         CHECK_STACK (&td, 1);
1958                         switch (td.sp [-1].type) {
1959                         case STACK_TYPE_R8:
1960                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
1961                                 break;
1962                         case STACK_TYPE_I8:
1963                                 break;
1964                         case STACK_TYPE_I4:
1965                                 ADD_CODE(&td, MINT_CONV_I8_U4);
1966                                 break;
1967                         default:
1968                                 g_assert_not_reached ();
1969                                 break;
1970                         }
1971                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1972                         ++td.ip;
1973                         break;
1974                 case CEE_BOX: {
1975                         int size;
1976                         CHECK_STACK (&td, 1);
1977                         token = read32 (td.ip + 1);
1978                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1979                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1980                         else
1981                                 klass = mono_class_get_full (image, token, generic_context);
1982                         g_assert (klass->valuetype);
1983                         if (klass->byval_arg.type == MONO_TYPE_VALUETYPE && !klass->enumtype) {
1984                                 size = mono_class_value_size (klass, NULL);
1985                                 size = (size + 7) & ~7;
1986                                 td.vt_sp -= size;
1987                         }
1988                         ADD_CODE(&td, MINT_BOX);
1989                         ADD_CODE(&td, get_data_item_index (&td, klass));
1990                         SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
1991                         td.ip += 5;
1992                         break;
1993                 }
1994                 case CEE_NEWARR:
1995                         CHECK_STACK (&td, 1);
1996                         token = read32 (td.ip + 1);
1997
1998                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1999                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2000                         else
2001                                 klass = mono_class_get_full (image, token, generic_context);
2002
2003                         ADD_CODE(&td, MINT_NEWARR);
2004                         ADD_CODE(&td, get_data_item_index (&td, klass));
2005                         SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2006                         td.ip += 5;
2007                         break;
2008                 case CEE_LDLEN:
2009                         CHECK_STACK (&td, 1);
2010                         SIMPLE_OP (td, MINT_LDLEN);
2011                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2012                         break;
2013                 case CEE_LDELEMA:
2014                         CHECK_STACK (&td, 2);
2015                         ENSURE_I4 (&td, 1);
2016                         token = read32 (td.ip + 1);
2017
2018                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2019                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2020                         else
2021                                 klass = mono_class_get_full (image, token, generic_context);
2022
2023                         ADD_CODE(&td, MINT_LDELEMA);
2024                         ADD_CODE(&td, get_data_item_index (&td, klass));
2025                         td.ip += 5;
2026                         --td.sp;
2027                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2028                         break;
2029                 case CEE_LDELEM_I1:
2030                         CHECK_STACK (&td, 2);
2031                         ENSURE_I4 (&td, 1);
2032                         SIMPLE_OP (td, MINT_LDELEM_I1);
2033                         --td.sp;
2034                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2035                         break;
2036                 case CEE_LDELEM_U1:
2037                         CHECK_STACK (&td, 2);
2038                         ENSURE_I4 (&td, 1);
2039                         SIMPLE_OP (td, MINT_LDELEM_U1);
2040                         --td.sp;
2041                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2042                         break;
2043                 case CEE_LDELEM_I2:
2044                         CHECK_STACK (&td, 2);
2045                         ENSURE_I4 (&td, 1);
2046                         SIMPLE_OP (td, MINT_LDELEM_I2);
2047                         --td.sp;
2048                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2049                         break;
2050                 case CEE_LDELEM_U2:
2051                         CHECK_STACK (&td, 2);
2052                         ENSURE_I4 (&td, 1);
2053                         SIMPLE_OP (td, MINT_LDELEM_U2);
2054                         --td.sp;
2055                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2056                         break;
2057                 case CEE_LDELEM_I4:
2058                         CHECK_STACK (&td, 2);
2059                         ENSURE_I4 (&td, 1);
2060                         SIMPLE_OP (td, MINT_LDELEM_I4);
2061                         --td.sp;
2062                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2063                         break;
2064                 case CEE_LDELEM_U4:
2065                         CHECK_STACK (&td, 2);
2066                         ENSURE_I4 (&td, 1);
2067                         SIMPLE_OP (td, MINT_LDELEM_U4);
2068                         --td.sp;
2069                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2070                         break;
2071                 case CEE_LDELEM_I8:
2072                         CHECK_STACK (&td, 2);
2073                         ENSURE_I4 (&td, 1);
2074                         SIMPLE_OP (td, MINT_LDELEM_I8);
2075                         --td.sp;
2076                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2077                         break;
2078                 case CEE_LDELEM_I:
2079                         CHECK_STACK (&td, 2);
2080                         ENSURE_I4 (&td, 1);
2081                         SIMPLE_OP (td, MINT_LDELEM_I);
2082                         --td.sp;
2083                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2084                         break;
2085                 case CEE_LDELEM_R4:
2086                         CHECK_STACK (&td, 2);
2087                         ENSURE_I4 (&td, 1);
2088                         SIMPLE_OP (td, MINT_LDELEM_R4);
2089                         --td.sp;
2090                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2091                         break;
2092                 case CEE_LDELEM_R8:
2093                         CHECK_STACK (&td, 2);
2094                         ENSURE_I4 (&td, 1);
2095                         SIMPLE_OP (td, MINT_LDELEM_R8);
2096                         --td.sp;
2097                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2098                         break;
2099                 case CEE_LDELEM_REF:
2100                         CHECK_STACK (&td, 2);
2101                         ENSURE_I4 (&td, 1);
2102                         SIMPLE_OP (td, MINT_LDELEM_REF);
2103                         --td.sp;
2104                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2105                         break;
2106                 case CEE_STELEM_I:
2107                         CHECK_STACK (&td, 3);
2108                         ENSURE_I4 (&td, 2);
2109                         SIMPLE_OP (td, MINT_STELEM_I);
2110                         td.sp -= 3;
2111                         break;
2112                 case CEE_STELEM_I1:
2113                         CHECK_STACK (&td, 3);
2114                         ENSURE_I4 (&td, 2);
2115                         SIMPLE_OP (td, MINT_STELEM_I1);
2116                         td.sp -= 3;
2117                         break;
2118                 case CEE_STELEM_I2:
2119                         CHECK_STACK (&td, 3);
2120                         ENSURE_I4 (&td, 2);
2121                         SIMPLE_OP (td, MINT_STELEM_I2);
2122                         td.sp -= 3;
2123                         break;
2124                 case CEE_STELEM_I4:
2125                         CHECK_STACK (&td, 3);
2126                         ENSURE_I4 (&td, 2);
2127                         SIMPLE_OP (td, MINT_STELEM_I4);
2128                         td.sp -= 3;
2129                         break;
2130                 case CEE_STELEM_I8:
2131                         CHECK_STACK (&td, 3);
2132                         ENSURE_I4 (&td, 2);
2133                         SIMPLE_OP (td, MINT_STELEM_I8);
2134                         td.sp -= 3;
2135                         break;
2136                 case CEE_STELEM_R4:
2137                         CHECK_STACK (&td, 3);
2138                         ENSURE_I4 (&td, 2);
2139                         SIMPLE_OP (td, MINT_STELEM_R4);
2140                         td.sp -= 3;
2141                         break;
2142                 case CEE_STELEM_R8:
2143                         CHECK_STACK (&td, 3);
2144                         ENSURE_I4 (&td, 2);
2145                         SIMPLE_OP (td, MINT_STELEM_R8);
2146                         td.sp -= 3;
2147                         break;
2148                 case CEE_STELEM_REF:
2149                         CHECK_STACK (&td, 3);
2150                         ENSURE_I4 (&td, 2);
2151                         SIMPLE_OP (td, MINT_STELEM_REF);
2152                         td.sp -= 3;
2153                         break;
2154 #if 0
2155                 case CEE_LDELEM:
2156                 case CEE_STELEM:
2157
2158                 case CEE_CONV_OVF_U1:
2159
2160                 case CEE_CONV_OVF_I8:
2161
2162 #if SIZEOF_VOID_P == 8
2163                 case CEE_CONV_OVF_U:
2164 #endif
2165                 case CEE_REFANYVAL: ves_abort(); break;
2166 #endif
2167                 case CEE_CKFINITE:
2168                         CHECK_STACK (&td, 1);
2169                         SIMPLE_OP (td, MINT_CKFINITE);
2170                         break;
2171                 case CEE_CONV_OVF_I1:
2172                 case CEE_CONV_OVF_I1_UN:
2173                         CHECK_STACK (&td, 1);
2174                         switch (td.sp [-1].type) {
2175                         case STACK_TYPE_R8:
2176                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2177                                 break;
2178                         case STACK_TYPE_I4:
2179                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2180                                 break;
2181                         case STACK_TYPE_I8:
2182                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2183                                 break;
2184                         default:
2185                                 g_assert_not_reached ();
2186                         }
2187                         ++td.ip;
2188                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2189                         break;
2190                 case CEE_CONV_OVF_U1:
2191                 case CEE_CONV_OVF_U1_UN:
2192                         CHECK_STACK (&td, 1);
2193                         switch (td.sp [-1].type) {
2194                         case STACK_TYPE_R8:
2195                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2196                                 break;
2197                         case STACK_TYPE_I4:
2198                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2199                                 break;
2200                         case STACK_TYPE_I8:
2201                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2202                                 break;
2203                         default:
2204                                 g_assert_not_reached ();
2205                         }
2206                         ++td.ip;
2207                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2208                         break;
2209                 case CEE_CONV_OVF_I2:
2210                 case CEE_CONV_OVF_I2_UN:
2211                         CHECK_STACK (&td, 1);
2212                         switch (td.sp [-1].type) {
2213                         case STACK_TYPE_R8:
2214                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2215                                 break;
2216                         case STACK_TYPE_I4:
2217                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2218                                 break;
2219                         case STACK_TYPE_I8:
2220                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2221                                 break;
2222                         default:
2223                                 g_assert_not_reached ();
2224                         }
2225                         ++td.ip;
2226                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2227                         break;
2228                 case CEE_CONV_OVF_U2_UN:
2229                 case CEE_CONV_OVF_U2:
2230                         CHECK_STACK (&td, 1);
2231                         switch (td.sp [-1].type) {
2232                         case STACK_TYPE_R8:
2233                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2234                                 break;
2235                         case STACK_TYPE_I4:
2236                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2237                                 break;
2238                         case STACK_TYPE_I8:
2239                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2240                                 break;
2241                         default:
2242                                 g_assert_not_reached ();
2243                         }
2244                         ++td.ip;
2245                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2246                         break;
2247 #if SIZEOF_VOID_P == 4
2248                 case CEE_CONV_OVF_I:
2249 #endif
2250                 case CEE_CONV_OVF_I4:
2251                 case CEE_CONV_OVF_I4_UN:
2252                         CHECK_STACK (&td, 1);
2253                         switch (td.sp [-1].type) {
2254                         case STACK_TYPE_R8:
2255                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2256                                 break;
2257                         case STACK_TYPE_I4:
2258                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2259                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2260                                 break;
2261                         case STACK_TYPE_I8:
2262                                 ADD_CODE(&td, MINT_CONV_OVF_I4_I8);
2263                                 break;
2264                         default:
2265                                 g_assert_not_reached ();
2266                         }
2267                         ++td.ip;
2268                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2269                         break;
2270 #if SIZEOF_VOID_P == 4
2271                 case CEE_CONV_OVF_U:
2272 #endif
2273                 case CEE_CONV_OVF_U4:
2274                 case CEE_CONV_OVF_U4_UN:
2275                         CHECK_STACK (&td, 1);
2276                         switch (td.sp [-1].type) {
2277                         case STACK_TYPE_R8:
2278                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2279                                 break;
2280                         case STACK_TYPE_I4:
2281                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2282                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2283                                 break;
2284                         case STACK_TYPE_I8:
2285                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2286                                 break;
2287                         default:
2288                                 g_assert_not_reached ();
2289                         }
2290                         ++td.ip;
2291                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2292                         break;
2293 #if SIZEOF_VOID_P == 8
2294                 case CEE_CONV_OVF_I:
2295 #endif
2296                 case CEE_CONV_OVF_I8:
2297                         CHECK_STACK (&td, 1);
2298                         switch (td.sp [-1].type) {
2299                         case STACK_TYPE_R8:
2300                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2301                                 break;
2302                         case STACK_TYPE_I4:
2303                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2304                                 break;
2305                         case STACK_TYPE_I8:
2306                                 break;
2307                         default:
2308                                 g_assert_not_reached ();
2309                         }
2310                         ++td.ip;
2311                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2312                         break;
2313 #if SIZEOF_VOID_P == 8
2314                 case CEE_CONV_OVF_U:
2315 #endif
2316                 case CEE_CONV_OVF_U8:
2317                         CHECK_STACK (&td, 1);
2318                         switch (td.sp [-1].type) {
2319                         case STACK_TYPE_R8:
2320                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2321                                 break;
2322                         case STACK_TYPE_I4:
2323                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2324                                 break;
2325                         case STACK_TYPE_I8:
2326                                 break;
2327                         default:
2328                                 g_assert_not_reached ();
2329                         }
2330                         ++td.ip;
2331                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2332                         break;
2333                 case CEE_LDTOKEN: {
2334                         int size;
2335                         gpointer handle;
2336                         token = read32 (td.ip + 1);
2337                         handle = mono_ldtoken (image, token, &klass, generic_context);
2338                         mt = mint_type(&klass->byval_arg);
2339                         g_assert (mt == MINT_TYPE_VT);
2340                         size = mono_class_value_size (klass, NULL);
2341                         g_assert (size == sizeof(gpointer));
2342                         PUSH_VT(&td, sizeof(gpointer));
2343                         ADD_CODE(&td, MINT_LDTOKEN);
2344                         ADD_CODE(&td, get_data_item_index (&td, handle));
2345                         PUSH_SIMPLE_TYPE(&td, stack_type [mt]);
2346                         td.ip += 5;
2347                         break;
2348                 }
2349                 case CEE_ADD_OVF:
2350                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2351                         ++td.ip;
2352                         break;
2353                 case CEE_ADD_OVF_UN:
2354                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2355                         ++td.ip;
2356                         break;
2357                 case CEE_MUL_OVF:
2358                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2359                         ++td.ip;
2360                         break;
2361                 case CEE_MUL_OVF_UN:
2362                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2363                         ++td.ip;
2364                         break;
2365                 case CEE_SUB_OVF:
2366                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2367                         ++td.ip;
2368                         break;
2369                 case CEE_SUB_OVF_UN:
2370                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2371                         ++td.ip;
2372                         break;
2373                 case CEE_ENDFINALLY:
2374                         SIMPLE_OP (td, MINT_ENDFINALLY);
2375                         generating_code = 0;
2376                         break;
2377                 case CEE_LEAVE:
2378                         td.sp = td.stack;
2379                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2380                         td.ip += 5;
2381                         generating_code = 0;
2382                         break;
2383                 case CEE_LEAVE_S:
2384                         td.sp = td.stack;
2385                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2386                         td.ip += 2;
2387                         generating_code = 0;
2388                         break;
2389                 case CEE_UNUSED41:
2390                         ++td.ip;
2391                         switch (*td.ip) {
2392                                 case CEE_MONO_ICALL: {
2393                                         guint32 token;
2394                                         gpointer func;
2395                                         MonoJitICallInfo *info;
2396
2397                                         token = read32 (td.ip + 1);
2398                                         td.ip += 5;
2399                                         func = mono_method_get_wrapper_data (method, token);
2400                                         info = mono_find_jit_icall_by_addr (func);
2401                                         g_assert (info);
2402
2403                                         CHECK_STACK (&td, info->sig->param_count);
2404                                         switch (info->sig->param_count) {
2405                                         case 0:
2406                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2407                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2408                                                 else
2409                                                         g_assert_not_reached();
2410                                                 break;
2411                                         case 1:
2412                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2413                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2414                                                 else
2415                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2416                                                 break;
2417                                         case 2:
2418                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2419                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2420                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2421                                                         else
2422                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2423                                                 } else {
2424                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2425                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2426                                                         else
2427                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2428                                                 }
2429                                                 break;
2430                                         case 3:
2431                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2432                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2433                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2434                                                 else
2435                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2436                                                 break;
2437                                         default:
2438                                                 g_assert_not_reached ();
2439                                         }
2440                                         g_error ("FIXME: ftnptr to delegate");
2441 #if 0
2442                                         if (func == mono_ftnptr_to_delegate)
2443                                                 func = mono_interp_ftnptr_to_delegate;
2444 #endif
2445                                         ADD_CODE(&td, get_data_item_index (&td, func));
2446                                         td.sp -= info->sig->param_count;
2447
2448                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2449                                                 td.sp ++;
2450                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2451                                         }
2452                                         break;
2453                                 }
2454                         case CEE_MONO_VTADDR: {
2455                                 int size;
2456                                 CHECK_STACK (&td, 1);
2457                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
2458                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
2459                                 else
2460                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
2461                                 size = (size + 7) & ~7;
2462                                 ADD_CODE(&td, MINT_VTRESULT);
2463                                 ADD_CODE(&td, 0);
2464                                 WRITE32(&td, &size);
2465                                 td.vt_sp -= size;
2466                                 ++td.ip;
2467                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2468                                 break;
2469                         }
2470                         case CEE_MONO_LDPTR:
2471                         case CEE_MONO_CLASSCONST:
2472                                 token = read32 (td.ip + 1);
2473                                 td.ip += 5;
2474                                 ADD_CODE(&td, MINT_MONO_LDPTR);
2475                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2476                                 td.sp [0].type = STACK_TYPE_I;
2477                                 ++td.sp;
2478                                 break;
2479                         case CEE_MONO_OBJADDR:
2480                                 CHECK_STACK (&td, 1);
2481                                 ++td.ip;
2482                                 td.sp[-1].type = STACK_TYPE_MP;
2483                                 /* do nothing? */
2484                                 break;
2485                         case CEE_MONO_NEWOBJ:
2486                                 token = read32 (td.ip + 1);
2487                                 td.ip += 5;
2488                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
2489                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
2490                                 td.sp [0].type = STACK_TYPE_O;
2491                                 ++td.sp;
2492                                 break;
2493                         case CEE_MONO_RETOBJ:
2494                                 CHECK_STACK (&td, 1);
2495                                 token = read32 (td.ip + 1);
2496                                 td.ip += 5;
2497                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
2498                                 td.sp--;
2499
2500                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2501
2502                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
2503
2504                                 if (td.sp > td.stack)
2505                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
2506                                 break;
2507                         case CEE_MONO_LDNATIVEOBJ:
2508                                 token = read32 (td.ip + 1);
2509                                 td.ip += 5;
2510                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2511                                 g_assert(klass->valuetype);
2512                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2513                                 break;
2514                         case CEE_MONO_SAVE_LMF:
2515                         case CEE_MONO_RESTORE_LMF:
2516                         case CEE_MONO_NOT_TAKEN:
2517                                 ++td.ip;
2518                                 break;
2519                         default:
2520                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
2521                         }
2522                         break;
2523 #if 0
2524                 case CEE_PREFIX7:
2525                 case CEE_PREFIX6:
2526                 case CEE_PREFIX5:
2527                 case CEE_PREFIX4:
2528                 case CEE_PREFIX3:
2529                 case CEE_PREFIX2:
2530                 case CEE_PREFIXREF: ves_abort(); break;
2531 #endif
2532                 /*
2533                  * Note: Exceptions thrown when executing a prefixed opcode need
2534                  * to take into account the number of prefix bytes (usually the
2535                  * throw point is just (ip - n_prefix_bytes).
2536                  */
2537                 case CEE_PREFIX1:
2538                         ++td.ip;
2539                         switch (*td.ip) {
2540 #if 0
2541                         case CEE_ARGLIST: ves_abort(); break;
2542 #endif
2543                         case CEE_CEQ:
2544                                 CHECK_STACK(&td, 2);
2545                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2546                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2547                                 else
2548                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
2549                                 --td.sp;
2550                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2551                                 ++td.ip;
2552                                 break;
2553                         case CEE_CGT:
2554                                 CHECK_STACK(&td, 2);
2555                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2556                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2557                                 else
2558                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2559                                 --td.sp;
2560                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2561                                 ++td.ip;
2562                                 break;
2563                         case CEE_CGT_UN:
2564                                 CHECK_STACK(&td, 2);
2565                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2566                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2567                                 else
2568                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2569                                 --td.sp;
2570                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2571                                 ++td.ip;
2572                                 break;
2573                         case CEE_CLT:
2574                                 CHECK_STACK(&td, 2);
2575                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2576                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2577                                 else
2578                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
2579                                 --td.sp;
2580                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2581                                 ++td.ip;
2582                                 break;
2583                         case CEE_CLT_UN:
2584                                 CHECK_STACK(&td, 2);
2585                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
2586                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
2587                                 else
2588                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
2589                                 --td.sp;
2590                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2591                                 ++td.ip;
2592                                 break;
2593                         case CEE_LDVIRTFTN: /* fallthrough */
2594                         case CEE_LDFTN: {
2595                                 MonoMethod *m;
2596                                 if (*td.ip == CEE_LDVIRTFTN) {
2597                                         CHECK_STACK (&td, 1);
2598                                         --td.sp;
2599                                 }
2600                                 token = read32 (td.ip + 1);
2601                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
2602                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
2603                                 else
2604                                         m = mono_get_method_full (image, token, NULL, generic_context);
2605
2606                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
2607                                         m = mono_marshal_get_synchronized_wrapper (m);
2608
2609                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
2610                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
2611                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2612                                 td.ip += 5;
2613                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
2614                                 break;
2615                         }
2616                         case CEE_LDARG:
2617                                 load_arg (&td, read16 (td.ip + 1));
2618                                 td.ip += 3;
2619                                 break;
2620                         case CEE_LDARGA: {
2621                                 int n = read16 (td.ip + 1);
2622                                 if (n == 0 && signature->hasthis)
2623                                         ADD_CODE(&td, MINT_LDTHISA);
2624                                 else {
2625                                         ADD_CODE(&td, MINT_LDARGA);
2626                                         ADD_CODE(&td, td.rtm->arg_offsets [n - signature->hasthis]); /* FIX for large offsets */
2627                                 }
2628                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2629                                 td.ip += 3;
2630                                 break;
2631                         }
2632                         case CEE_STARG:
2633                                 store_arg (&td, read16 (td.ip + 1));
2634                                 td.ip += 3;
2635                                 break;
2636                         case CEE_LDLOC:
2637                                 load_local (&td, read16 (td.ip + 1));
2638                                 td.ip += 3;
2639                                 break;
2640                         case CEE_LDLOCA:
2641                                 ADD_CODE(&td, MINT_LDLOCA_S);
2642                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
2643                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2644                                 td.ip += 3;
2645                                 break;
2646                         case CEE_STLOC:
2647                                 store_local (&td, read16 (td.ip + 1));
2648                                 td.ip += 3;
2649                                 break;
2650                         case CEE_LOCALLOC:
2651                                 CHECK_STACK (&td, 1);
2652 #if SIZEOF_VOID_P == 8
2653                                 if (td.sp [-1].type == STACK_TYPE_I8)
2654                                         ADD_CODE(&td, MINT_CONV_I4_I8);
2655 #endif
2656                                 ADD_CODE(&td, MINT_LOCALLOC);
2657                                 if (td.sp != td.stack + 1)
2658                                         g_warning("CEE_LOCALLOC: stack not empty");
2659                                 ++td.ip;
2660                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2661                                 break;
2662 #if 0
2663                         case CEE_UNUSED57: ves_abort(); break;
2664                         case CEE_ENDFILTER: ves_abort(); break;
2665 #endif
2666                         case CEE_UNALIGNED_:
2667                                 ++td.ip;
2668                                 /* FIX: should do something? */;
2669                                 break;
2670                         case CEE_VOLATILE_:
2671                                 ++td.ip;
2672                                 /* FIX: should do something? */;
2673                                 break;
2674                         case CEE_TAIL_:
2675                                 ++td.ip;
2676                                 /* FIX: should do something? */;
2677                                 break;
2678                         case CEE_INITOBJ:
2679                                 CHECK_STACK(&td, 1);
2680                                 token = read32 (td.ip + 1);
2681                                 klass = mono_class_get_full (image, token, generic_context);
2682                                 ADD_CODE(&td, MINT_INITOBJ);
2683                                 i32 = mono_class_value_size (klass, NULL);
2684                                 WRITE32(&td, &i32);
2685                                 td.ip += 5;
2686                                 --td.sp;
2687                                 break;
2688                         case CEE_CPBLK:
2689                                 CHECK_STACK(&td, 3);
2690                                 /* FIX? convert length to I8? */
2691                                 ADD_CODE(&td, MINT_CPBLK);
2692                                 td.sp -= 3;
2693                                 ++td.ip;
2694                                 break;
2695 #if 0
2696                         case CEE_CONSTRAINED_: {
2697                                 guint32 token;
2698                                 /* FIXME: implement */
2699                                 ++ip;
2700                                 token = read32 (ip);
2701                                 ip += 4;
2702                                 break;
2703                         }
2704 #endif
2705                         case CEE_INITBLK:
2706                                 CHECK_STACK(&td, 3);
2707                                 ADD_CODE(&td, MINT_INITBLK);
2708                                 td.sp -= 3;
2709                                 break;
2710 #if 0
2711                         case CEE_NO_:
2712                                 /* FIXME: implement */
2713                                 ip += 2;
2714                                 break;
2715 #endif
2716                         case CEE_RETHROW:
2717                                 SIMPLE_OP (td, MINT_RETHROW);
2718                                 generating_code = 0;
2719                                 break;
2720                         case CEE_SIZEOF: {
2721                                 guint32 align;
2722                                 gint32 size;
2723                                 token = read32 (td.ip + 1);
2724                                 td.ip += 5;
2725                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC) {
2726                                         MonoType *type = mono_type_create_from_typespec (image, token);
2727                                         size = mono_type_size (type, &align);
2728                                 } else {
2729                                         MonoClass *szclass = mono_class_get_full (image, token, generic_context);
2730                                         mono_class_init (szclass);
2731 #if 0
2732                                         if (!szclass->valuetype)
2733                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
2734 #endif
2735                                         size = mono_class_value_size (szclass, &align);
2736                                 }
2737                                 ADD_CODE(&td, MINT_LDC_I4);
2738                                 WRITE32(&td, &size);
2739                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
2740                                 break;
2741                         }
2742 #if 0
2743                         case CEE_REFANYTYPE: ves_abort(); break;
2744 #endif
2745                         default:
2746                                 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);
2747                         }
2748                         break;
2749                 default:
2750                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
2751                 }
2752
2753                 if (td.new_ip - td.new_code != new_in_start_offset)
2754                         td.last_new_ip = td.new_code + new_in_start_offset;
2755                 else if (td.is_bb_start [td.in_start - td.il_code])
2756                         td.is_bb_start [td.ip - td.il_code] = 1;
2757
2758                 td.last_ip = td.in_start;
2759         }
2760
2761         if (mono_interp_traceopt) {
2762                 const guint16 *p = td.new_code;
2763                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
2764                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
2765                 while (p < td.new_ip) {
2766                         p = mono_interp_dis_mintop(td.new_code, p);
2767                         printf("\n");
2768                 }
2769         }
2770
2771         rtm->clauses = mono_mempool_alloc (domain->mp, header->num_clauses * sizeof(MonoExceptionClause));
2772         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
2773         rtm->code = mono_mempool_alloc (domain->mp, (td.new_ip - td.new_code) * sizeof(gushort));
2774         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
2775         g_free (td.new_code);
2776         rtm->new_body_start = rtm->code + body_start_offset;
2777         rtm->num_clauses = header->num_clauses;
2778         for (i = 0; i < header->num_clauses; i++) {
2779                 MonoExceptionClause *c = rtm->clauses + i;
2780                 int end_off = c->try_offset + c->try_len;
2781                 c->try_offset = td.in_offsets [c->try_offset];
2782                 c->try_len = td.in_offsets [end_off] - c->try_offset;
2783                 end_off = c->handler_offset + c->handler_len;
2784                 c->handler_offset = td.in_offsets [c->handler_offset];
2785                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
2786         }
2787         rtm->vt_stack_size = td.max_vt_sp;
2788         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
2789         rtm->data_items = mono_mempool_alloc (domain->mp, td.n_data_items * sizeof (td.data_items [0]));
2790         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
2791         g_free (td.in_offsets);
2792         g_free (td.forward_refs);
2793         for (i = 0; i < header->code_size; ++i)
2794                 g_free (td.stack_state [i]);
2795         g_free (td.stack_state);
2796         g_free (td.stack_height);
2797         g_free (td.vt_stack_size);
2798         g_free (td.data_items);
2799         g_hash_table_destroy (td.data_hash);
2800 }
2801
2802 static mono_mutex_t calc_section;
2803
2804 void
2805 mono_interp_transform_init (void)
2806 {
2807         mono_os_mutex_init_recursive(&calc_section);
2808 }
2809
2810 MonoException *
2811 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
2812 {
2813         int i, align, size, offset;
2814         MonoMethod *method = runtime_method->method;
2815         MonoImage *image = method->klass->image;
2816         MonoMethodHeader *header = mono_method_get_header (method);
2817         MonoMethodSignature *signature = mono_method_signature (method);
2818         register const unsigned char *ip, *end;
2819         const MonoOpcode *opcode;
2820         MonoMethod *m;
2821         MonoClass *class;
2822         MonoDomain *domain = mono_domain_get ();
2823         unsigned char *is_bb_start;
2824         int in;
2825         MonoVTable *method_class_vt;
2826         int backwards;
2827         MonoGenericContext *generic_context = NULL;
2828
2829         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
2830         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
2831         if (!method_class_vt->initialized) {
2832                 jmp_buf env;
2833                 MonoInvocation *last_env_frame = context->env_frame;
2834                 jmp_buf *old_env = context->current_env;
2835
2836                 if (setjmp(env)) {
2837                         MonoException *failed = context->env_frame->ex;
2838                         context->env_frame->ex = NULL;
2839                         context->env_frame = last_env_frame;
2840                         context->current_env = old_env;
2841                         return failed;
2842                 }
2843                 context->env_frame = context->current_frame;
2844                 context->current_env = &env;
2845                 mono_runtime_class_init (method_class_vt);
2846                 context->env_frame = last_env_frame;
2847                 context->current_env = old_env;
2848         }
2849
2850         mono_profiler_method_jit (method); /* sort of... */
2851
2852         if (mono_method_signature (method)->is_inflated)
2853                 generic_context = &((MonoMethodInflated *) method)->context;
2854
2855         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
2856                 MonoMethod *nm = NULL;
2857                 mono_os_mutex_lock(&calc_section);
2858                 if (runtime_method->transformed) {
2859                         mono_os_mutex_unlock(&calc_section);
2860                         g_error ("FIXME: no jit info?");
2861                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
2862                         return NULL;
2863                 }
2864
2865                 /* assumes all internal calls with an array this are built in... */
2866                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
2867                         runtime_method->code = g_malloc (sizeof (short));
2868                         runtime_method->code[0] = MINT_CALLINT;
2869                         g_assert (((MonoMethodPInvoke *) method)->addr == NULL);
2870                         if (((MonoMethodPInvoke*) method)->addr == NULL)
2871                                 ((MonoMethodPInvoke*) method)->addr = mono_lookup_internal_call (method);
2872 #if 0
2873                         g_error ("FIXME: arch_trampoline, not available?");
2874                         runtime_method->func = mono_arch_create_trampoline (mono_method_signature (method), method->string_ctor);
2875 #endif
2876                 } else {
2877                         const char *name = method->name;
2878                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
2879                                 if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
2880                                         g_error ("FIXME: no del?");
2881                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
2882                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
2883                                         nm = mono_marshal_get_delegate_begin_invoke (method);
2884                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
2885                                         nm = mono_marshal_get_delegate_end_invoke (method);
2886                                 } else {
2887                                         g_assert_not_reached ();
2888                                 }
2889                         }
2890                         if (nm == NULL) {
2891                                 runtime_method->code = g_malloc(sizeof(short));
2892                                 runtime_method->code[0] = MINT_CALLRUN;
2893                         }
2894                 }
2895                 if (nm == NULL) {
2896                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
2897                         runtime_method->alloca_size = runtime_method->stack_size;
2898                         runtime_method->transformed = TRUE;
2899                         mono_os_mutex_unlock(&calc_section);
2900                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
2901                         return NULL;
2902                 }
2903                 method = nm;
2904                 header = mono_method_get_header (nm);
2905                 mono_os_mutex_unlock(&calc_section);
2906         }
2907         g_assert ((signature->param_count + signature->hasthis) < 1000);
2908         g_assert (header->max_stack < 10000);
2909         /* intern the strings in the method. */
2910         ip = header->code;
2911         end = ip + header->code_size;
2912
2913         is_bb_start = g_malloc0(header->code_size);
2914         is_bb_start [0] = 1;
2915         while (ip < end) {
2916                 in = *ip;
2917                 if (in == 0xfe) {
2918                         ip++;
2919                         in = *ip + 256;
2920                 }
2921                 else if (in == 0xf0) {
2922                         ip++;
2923                         in = *ip + MONO_CEE_MONO_ICALL;
2924                 }
2925                 opcode = &mono_opcodes [in];
2926                 switch (opcode->argument) {
2927                 case MonoInlineNone:
2928                         ++ip;
2929                         break;
2930                 case MonoInlineString:
2931                         if (method->wrapper_type == MONO_WRAPPER_NONE)
2932                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
2933                         ip += 5;
2934                         break;
2935                 case MonoInlineType:
2936                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
2937                                 class = mono_class_get_full (image, read32 (ip + 1), generic_context);
2938                                 mono_class_init (class);
2939                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
2940 #if 0
2941                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
2942                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
2943                                         mono_class_vtable (domain, class);
2944 #endif
2945                         }
2946                         ip += 5;
2947                         break;
2948                 case MonoInlineMethod:
2949                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
2950                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
2951                                 if (m == NULL) {
2952                                         g_free (is_bb_start);
2953                                         g_error ("FIXME: where to get method and class string?");
2954                                         return NULL;
2955                                         // return mono_get_exception_missing_method ();
2956                                 }
2957                                 mono_class_init (m->klass);
2958                                 if (!(m->klass->flags & TYPE_ATTRIBUTE_INTERFACE))
2959                                         mono_class_vtable (domain, m->klass);
2960                         }
2961                         ip += 5;
2962                         break;
2963                 case MonoInlineField:
2964                 case MonoInlineSig:
2965                 case MonoInlineI:
2966                 case MonoInlineTok:
2967                 case MonoShortInlineR:
2968                         ip += 5;
2969                         break;
2970                 case MonoInlineBrTarget:
2971                         offset = read32 (ip + 1);
2972                         ip += 5;
2973                         backwards = offset < 0;
2974                         offset += ip - header->code;
2975                         g_assert (offset >= 0 && offset < header->code_size);
2976                         is_bb_start [offset] |= backwards ? 2 : 1;
2977                         break;
2978                 case MonoShortInlineBrTarget:
2979                         offset = ((gint8 *)ip) [1];
2980                         ip += 2;
2981                         backwards = offset < 0;
2982                         offset += ip - header->code;
2983                         g_assert (offset >= 0 && offset < header->code_size);
2984                         is_bb_start [offset] |= backwards ? 2 : 1;
2985                         break;
2986                 case MonoInlineVar:
2987                         ip += 3;
2988                         break;
2989                 case MonoShortInlineVar:
2990                 case MonoShortInlineI:
2991                         ip += 2;
2992                         break;
2993                 case MonoInlineSwitch: {
2994                         guint32 n;
2995                         const unsigned char *next_ip;
2996                         ++ip;
2997                         n = read32 (ip);
2998                         ip += 4;
2999                         next_ip = ip + 4 * n;
3000                         for (i = 0; i < n; i++) {
3001                                 offset = read32 (ip);
3002                                 backwards = offset < 0;
3003                                 offset += next_ip - header->code;
3004                                 g_assert (offset >= 0 && offset < header->code_size);
3005                                 is_bb_start [offset] |= backwards ? 2 : 1;
3006                                 ip += 4;
3007                         }
3008                         break;
3009                 }
3010                 case MonoInlineR:
3011                 case MonoInlineI8:
3012                         ip += 9;
3013                         break;
3014                 default:
3015                         g_assert_not_reached ();
3016                 }
3017         }
3018         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3019
3020         /* the rest needs to be locked so it is only done once */
3021         mono_os_mutex_lock(&calc_section);
3022         if (runtime_method->transformed) {
3023                 mono_os_mutex_unlock(&calc_section);
3024                 g_free (is_bb_start);
3025                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3026                 return NULL;
3027         }
3028
3029         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3030         runtime_method->stack_size = (sizeof (stackval) + 2) * header->max_stack; /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3031         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3032         offset = 0;
3033         for (i = 0; i < header->num_locals; ++i) {
3034                 size = mono_type_size (header->locals [i], &align);
3035                 offset += align - 1;
3036                 offset &= ~(align - 1);
3037                 runtime_method->local_offsets [i] = offset;
3038                 offset += size;
3039         }
3040         offset = (offset + 7) & ~7;
3041         runtime_method->locals_size = offset;
3042         g_assert (runtime_method->locals_size < 65536);
3043         offset = 0;
3044         runtime_method->arg_offsets = g_malloc(signature->param_count * sizeof(guint32));
3045         for (i = 0; i < signature->param_count; ++i) {
3046                 if (signature->pinvoke) {
3047                         size = mono_type_native_stack_size (signature->params [i], &align);
3048                         align = 8;
3049                 }
3050                 else
3051                         size = mono_type_stack_size (signature->params [i], &align);
3052                 offset += align - 1;
3053                 offset &= ~(align - 1);
3054                 runtime_method->arg_offsets [i] = offset;
3055                 offset += size;
3056         }
3057         offset = (offset + 7) & ~7;
3058         runtime_method->args_size = offset;
3059         g_assert (runtime_method->args_size < 10000);
3060
3061         generate(method, runtime_method, is_bb_start);
3062
3063         g_free (is_bb_start);
3064
3065         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3066         runtime_method->transformed = TRUE;
3067         mono_os_mutex_unlock(&calc_section);
3068
3069         return NULL;
3070 }
3071