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