mono/mini/interp/transform.c

   1 /**
   2  * \file
   3  * transform CIL into different opcodes for more
   4  * efficient interpretation
   5  *
   6  * Written by Bernie Solomon (bernard@ugsolutions.com)
   7  * Copyright (c) 2004.
   8  */
   9
  10 #include <string.h>
  11 #include <mono/metadata/appdomain.h>
  12 #include <mono/metadata/debug-helpers.h>
  13 #include <mono/metadata/exception.h>
  14 #include <mono/metadata/mono-endian.h>
  15 #include <mono/metadata/marshal.h>
  16 #include <mono/metadata/profiler-private.h>
  17 #include <mono/metadata/tabledefs.h>
  18
  19 #include <mono/mini/mini.h>
  20
  21 #include "mintops.h"
  22 #include "interp-internals.h"
  23 #include "interp.h"
  24
  25 // TODO: export from marshal.c
  26 MonoDelegate* mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn);
  27
  28 #define DEBUG 0
  29
  30 typedef struct
  31 {
  32         MonoClass *klass;
  33         unsigned char type;
  34         unsigned char flags;
  35 } StackInfo;
  36
  37 typedef struct
  38 {
  39         MonoMethod *method;
  40         MonoMethodHeader *header;
  41         RuntimeMethod *rtm;
  42         const unsigned char *il_code;
  43         const unsigned char *ip;
  44         const unsigned char *last_ip;
  45         const unsigned char *in_start;
  46         int code_size;
  47         int *in_offsets;
  48         int *forward_refs;
  49         StackInfo **stack_state;
  50         int *stack_height;
  51         int *vt_stack_size;
  52         unsigned char *is_bb_start;
  53         unsigned short *new_code;
  54         unsigned short *new_code_end;
  55         unsigned short *new_ip;
  56         unsigned short *last_new_ip;
  57         unsigned int max_code_size;
  58         StackInfo *stack;
  59         StackInfo *sp;
  60         unsigned int max_stack_height;
  61         unsigned int vt_sp;
  62         unsigned int max_vt_sp;
  63         int n_data_items;
  64         int max_data_items;
  65         void **data_items;
  66         GHashTable *data_hash;
  67         int *clause_indexes;
  68 } TransformData;
  69
  70 #define MINT_TYPE_I1 0
  71 #define MINT_TYPE_U1 1
  72 #define MINT_TYPE_I2 2
  73 #define MINT_TYPE_U2 3
  74 #define MINT_TYPE_I4 4
  75 #define MINT_TYPE_I8 5
  76 #define MINT_TYPE_R4 6
  77 #define MINT_TYPE_R8 7
  78 #define MINT_TYPE_O  8
  79 #define MINT_TYPE_P  9
  80 #define MINT_TYPE_VT 10
  81
  82 #define STACK_TYPE_I4 0
  83 #define STACK_TYPE_I8 1
  84 #define STACK_TYPE_R8 2
  85 #define STACK_TYPE_O  3
  86 #define STACK_TYPE_VT 4
  87 #define STACK_TYPE_MP 5
  88 #define STACK_TYPE_F  6
  89
  90 static const char *stack_type_string [] = { "I4", "I8", "R8", "O ", "VT", "MP", "F " };
  91
  92 #if SIZEOF_VOID_P == 8
  93 #define STACK_TYPE_I STACK_TYPE_I8
  94 #else
  95 #define STACK_TYPE_I STACK_TYPE_I4
  96 #endif
  97
  98 static int stack_type [] = {
  99         STACK_TYPE_I4, /*I1*/
 100         STACK_TYPE_I4, /*U1*/
 101         STACK_TYPE_I4, /*I2*/
 102         STACK_TYPE_I4, /*U2*/
 103         STACK_TYPE_I4, /*I4*/
 104         STACK_TYPE_I8, /*I8*/
 105         STACK_TYPE_R8, /*R4*/
 106         STACK_TYPE_R8, /*R8*/
 107         STACK_TYPE_O,  /*O*/
 108         STACK_TYPE_MP, /*P*/
 109         STACK_TYPE_VT
 110 };
 111
 112 static void
 113 grow_code (TransformData *td)
 114 {
 115         unsigned int old_ip_offset = td->new_ip - td->new_code;
 116         unsigned int old_last_ip_offset = td->last_new_ip - td->new_code;
 117         g_assert (old_ip_offset <= td->max_code_size);
 118         td->new_code = g_realloc (td->new_code, (td->max_code_size *= 2) * sizeof (td->new_code [0]));
 119         td->new_code_end = td->new_code + td->max_code_size;
 120         td->new_ip = td->new_code + old_ip_offset;
 121         td->last_new_ip = td->new_code + old_last_ip_offset;
 122 }
 123
 124 #define ENSURE_CODE(td, n) \
 125         do { \
 126                 if ((td)->new_ip + (n) > (td)->new_code_end) \
 127                         grow_code (td); \
 128         } while (0)
 129
 130 #define ADD_CODE(td, n) \
 131         do { \
 132                 if ((td)->new_ip == (td)->new_code_end) \
 133                         grow_code (td); \
 134                 *(td)->new_ip++ = (n); \
 135         } while (0)
 136
 137 #define CHECK_STACK(td, n) \
 138         do { \
 139                 int stack_size = (td)->sp - (td)->stack; \
 140                 if (stack_size < (n)) \
 141                         g_warning ("%s.%s: not enough values (%d < %d) on stack at %04x", \
 142                                 (td)->method->klass->name, (td)->method->name, \
 143                                 stack_size, n, (td)->ip - (td)->il_code); \
 144         } while (0)
 145
 146 #define ENSURE_I4(td, sp_off) \
 147         do { \
 148                 if ((td)->sp [-sp_off].type == STACK_TYPE_I8) \
 149                         ADD_CODE(td, sp_off == 1 ? MINT_CONV_I4_I8 : MINT_CONV_I4_I8_SP); \
 150         } while (0)
 151
 152 static void
 153 handle_branch(TransformData *td, int short_op, int long_op, int offset)
 154 {
 155         int shorten_branch = 0;
 156         int target = td->ip + offset - td->il_code;
 157         if (target < 0 || target >= td->code_size)
 158                 g_assert_not_reached ();
 159         if (offset > 0 && td->stack_height [target] < 0) {
 160                 td->stack_height [target] = td->sp - td->stack;
 161                 if (td->stack_height [target] > 0)
 162                         td->stack_state [target] = g_memdup (td->stack, td->stack_height [target] * sizeof (td->stack [0]));
 163                 td->vt_stack_size [target] = td->vt_sp;
 164         }
 165         if (offset < 0) {
 166                 offset = td->in_offsets [target] - (td->new_ip - td->new_code);
 167                 if (offset >= -32768) {
 168                         shorten_branch = 1;
 169                 }
 170         } else {
 171                 int prev = td->forward_refs [target];
 172                 td->forward_refs [td->ip - td->il_code] = prev;
 173                 td->forward_refs [target] = td->ip - td->il_code;
 174                 offset = 0;
 175                 if (td->header->code_size <= 25000) /* FIX to be precise somehow? */
 176                         shorten_branch = 1;
 177         }
 178         if (shorten_branch) {
 179                 ADD_CODE(td, short_op);
 180                 ADD_CODE(td, offset);
 181         } else {
 182                 ADD_CODE(td, long_op);
 183                 ADD_CODE(td, * (unsigned short *)(&offset));
 184                 ADD_CODE(td, * ((unsigned short *)&offset + 1));
 185         }
 186 }
 187
 188 static void
 189 one_arg_branch(TransformData *td, int mint_op, int offset)
 190 {
 191         int type = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 192         int long_op = mint_op + type - STACK_TYPE_I4;
 193         int short_op = long_op + MINT_BRFALSE_I4_S - MINT_BRFALSE_I4;
 194         CHECK_STACK(td, 1);
 195         --td->sp;
 196         handle_branch (td, short_op, long_op, offset);
 197 }
 198
 199 static void
 200 two_arg_branch(TransformData *td, int mint_op, int offset)
 201 {
 202         int type1 = td->sp [-1].type == STACK_TYPE_O || td->sp [-1].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-1].type;
 203         int type2 = td->sp [-2].type == STACK_TYPE_O || td->sp [-2].type == STACK_TYPE_MP ? STACK_TYPE_I : td->sp [-2].type;
 204         int long_op = mint_op + type1 - STACK_TYPE_I4;
 205         int short_op = long_op + MINT_BEQ_I4_S - MINT_BEQ_I4;
 206         CHECK_STACK(td, 2);
 207         if (type1 == STACK_TYPE_I4 && type2 == STACK_TYPE_I8) {
 208                 ADD_CODE(td, MINT_CONV_I8_I4);
 209                 td->in_offsets [td->ip - td->il_code]++;
 210         } else if (type1 == STACK_TYPE_I8 && type2 == STACK_TYPE_I4) {
 211                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 212                 td->in_offsets [td->ip - td->il_code]++;
 213         } else if (type1 != type2) {
 214                 g_warning("%s.%s: branch type mismatch %d %d",
 215                         td->method->klass->name, td->method->name,
 216                         td->sp [-1].type, td->sp [-2].type);
 217         }
 218         td->sp -= 2;
 219         handle_branch (td, short_op, long_op, offset);
 220 }
 221
 222 static void
 223 unary_arith_op(TransformData *td, int mint_op)
 224 {
 225         int op = mint_op + td->sp [-1].type - STACK_TYPE_I4;
 226         CHECK_STACK(td, 1);
 227         ADD_CODE(td, op);
 228 }
 229
 230 static void
 231 binary_arith_op(TransformData *td, int mint_op)
 232 {
 233         int type1 = td->sp [-2].type;
 234         int type2 = td->sp [-1].type;
 235         int op;
 236 #if SIZEOF_VOID_P == 8
 237         if ((type1 == STACK_TYPE_MP || type1 == STACK_TYPE_I8) && type2 == STACK_TYPE_I4) {
 238                 ADD_CODE(td, MINT_CONV_I8_I4);
 239                 type2 = STACK_TYPE_I8;
 240         }
 241         if (type1 == STACK_TYPE_I4 && (type2 == STACK_TYPE_MP || type2 == STACK_TYPE_I8)) {
 242                 ADD_CODE(td, MINT_CONV_I8_I4_SP);
 243                 type1 = STACK_TYPE_I8;
 244                 td->sp [-2].type = STACK_TYPE_I8;
 245         }
 246 #endif
 247         if (type1 == STACK_TYPE_MP)
 248                 type1 = STACK_TYPE_I;
 249         if (type2 == STACK_TYPE_MP)
 250                 type2 = STACK_TYPE_I;
 251         if (type1 != type2) {
 252                 g_warning("%s.%s: %04x arith type mismatch %s %d %d",
 253                         td->method->klass->name, td->method->name,
 254                         td->ip - td->il_code, mono_interp_opname[mint_op], type1, type2);
 255         }
 256         op = mint_op + type1 - STACK_TYPE_I4;
 257         CHECK_STACK(td, 2);
 258         ADD_CODE(td, op);
 259         --td->sp;
 260 }
 261
 262 static void
 263 shift_op(TransformData *td, int mint_op)
 264 {
 265         int op = mint_op + td->sp [-2].type - STACK_TYPE_I4;
 266         CHECK_STACK(td, 2);
 267         if (td->sp [-1].type != STACK_TYPE_I4) {
 268                 g_warning("%s.%s: shift type mismatch %d",
 269                         td->method->klass->name, td->method->name,
 270                         td->sp [-2].type);
 271         }
 272         ADD_CODE(td, op);
 273         --td->sp;
 274 }
 275
 276 static int
 277 mint_type(MonoType *type)
 278 {
 279         if (type->byref)
 280                 return MINT_TYPE_P;
 281 enum_type:
 282         switch (type->type) {
 283         case MONO_TYPE_I1:
 284                 return MINT_TYPE_I1;
 285         case MONO_TYPE_U1:
 286         case MONO_TYPE_BOOLEAN:
 287                 return MINT_TYPE_U1;
 288         case MONO_TYPE_I2:
 289                 return MINT_TYPE_I2;
 290         case MONO_TYPE_U2:
 291         case MONO_TYPE_CHAR:
 292                 return MINT_TYPE_U2;
 293         case MONO_TYPE_I4:
 294         case MONO_TYPE_U4:
 295                 return MINT_TYPE_I4;
 296         case MONO_TYPE_I:
 297         case MONO_TYPE_U:
 298 #if SIZEOF_VOID_P == 4
 299                 return MINT_TYPE_I4;
 300 #else
 301                 return MINT_TYPE_I8;
 302 #endif
 303         case MONO_TYPE_PTR:
 304                 return MINT_TYPE_P;
 305         case MONO_TYPE_R4:
 306                 return MINT_TYPE_R4;
 307         case MONO_TYPE_I8:
 308         case MONO_TYPE_U8:
 309                 return MINT_TYPE_I8;
 310         case MONO_TYPE_R8:
 311                 return MINT_TYPE_R8;
 312         case MONO_TYPE_STRING:
 313         case MONO_TYPE_SZARRAY:
 314         case MONO_TYPE_CLASS:
 315         case MONO_TYPE_OBJECT:
 316         case MONO_TYPE_ARRAY:
 317                 return MINT_TYPE_O;
 318         case MONO_TYPE_VALUETYPE:
 319                 if (type->data.klass->enumtype) {
 320                         type = mono_class_enum_basetype (type->data.klass);
 321                         goto enum_type;
 322                 } else
 323                         return MINT_TYPE_VT;
 324         case MONO_TYPE_TYPEDBYREF:
 325                 return MINT_TYPE_VT;
 326         case MONO_TYPE_GENERICINST:
 327                 type = &type->data.generic_class->container_class->byval_arg;
 328                 goto enum_type;
 329         default:
 330                 g_warning ("got type 0x%02x", type->type);
 331                 g_assert_not_reached ();
 332         }
 333         return -1;
 334 }
 335
 336 static int
 337 can_store (int stack_type, int var_type)
 338 {
 339         if (stack_type == STACK_TYPE_O || stack_type == STACK_TYPE_MP)
 340                 stack_type = STACK_TYPE_I;
 341         if (var_type == STACK_TYPE_O || var_type == STACK_TYPE_MP)
 342                 var_type = STACK_TYPE_I;
 343         return stack_type == var_type;
 344 }
 345
 346 #define SET_SIMPLE_TYPE(s, ty) \
 347         do { \
 348                 (s)->type = (ty); \
 349                 (s)->flags = 0; \
 350                 (s)->klass = NULL; \
 351         } while (0)
 352
 353 #define SET_TYPE(s, ty, k) \
 354         do { \
 355                 (s)->type = (ty); \
 356                 (s)->flags = 0; \
 357                 (s)->klass = k; \
 358         } while (0)
 359
 360 #define PUSH_SIMPLE_TYPE(td, ty) \
 361         do { \
 362                 int sp_height; \
 363                 (td)->sp++; \
 364                 sp_height = (td)->sp - (td)->stack; \
 365                 if (sp_height > (td)->max_stack_height) \
 366                         (td)->max_stack_height = sp_height; \
 367                 SET_SIMPLE_TYPE((td)->sp - 1, ty); \
 368         } while (0)
 369
 370 #define PUSH_TYPE(td, ty, k) \
 371         do { \
 372                 int sp_height; \
 373                 (td)->sp++; \
 374                 sp_height = (td)->sp - (td)->stack; \
 375                 if (sp_height > (td)->max_stack_height) \
 376                         (td)->max_stack_height = sp_height; \
 377                 SET_TYPE((td)->sp - 1, ty, k); \
 378         } while (0)
 379
 380 #define PUSH_VT(td, size) \
 381         do { \
 382                 (td)->vt_sp += ((size) + 7) & ~7; \
 383                 if ((td)->vt_sp > (td)->max_vt_sp) \
 384                         (td)->max_vt_sp = (td)->vt_sp; \
 385         } while (0)
 386
 387 #define POP_VT(td, size) \
 388         do { \
 389                 (td)->vt_sp -= ((size) + 7) & ~7; \
 390         } while (0)
 391
 392 #if NO_UNALIGNED_ACCESS
 393 #define WRITE32(td, v) \
 394         do { \
 395                 ENSURE_CODE(td, 2); \
 396                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 397                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 398                 (td)->new_ip += 2; \
 399         } while (0)
 400
 401 #define WRITE64(td, v) \
 402         do { \
 403                 ENSURE_CODE(td, 4); \
 404                 * (guint16 *)((td)->new_ip) = * (guint16 *)(v); \
 405                 * ((guint16 *)((td)->new_ip) + 1) = * ((guint16 *)(v) + 1); \
 406                 * ((guint16 *)((td)->new_ip) + 2) = * ((guint16 *)(v) + 2); \
 407                 * ((guint16 *)((td)->new_ip) + 3) = * ((guint16 *)(v) + 3); \
 408                 (td)->new_ip += 4; \
 409         } while (0)
 410 #else
 411 #define WRITE32(td, v) \
 412         do { \
 413                 ENSURE_CODE(td, 2); \
 414                 * (guint32 *)((td)->new_ip) = * (guint32 *)(v); \
 415                 (td)->new_ip += 2; \
 416         } while (0)
 417
 418 #define WRITE64(td, v) \
 419         do { \
 420                 ENSURE_CODE(td, 4); \
 421                 * (guint64 *)((td)->new_ip) = * (guint64 *)(v); \
 422                 (td)->new_ip += 4; \
 423         } while (0)
 424
 425 #endif
 426
 427 static void
 428 load_arg(TransformData *td, int n)
 429 {
 430         int mt;
 431         MonoClass *klass = NULL;
 432         MonoType *type;
 433
 434         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 435         if (hasthis && n == 0)
 436                 type = &td->method->klass->byval_arg;
 437         else
 438                 type = mono_method_signature (td->method)->params [hasthis ? n - 1 : n];
 439
 440         mt = mint_type (type);
 441         if (mt == MINT_TYPE_VT) {
 442                 gint32 size;
 443                 klass = mono_class_from_mono_type (type);
 444                 if (mono_method_signature (td->method)->pinvoke)
 445                         size = mono_class_native_size (klass, NULL);
 446                 else
 447                         size = mono_class_value_size (klass, NULL);
 448
 449                 if (hasthis && n == 0) {
 450                         mt = MINT_TYPE_P;
 451                         ADD_CODE (td, MINT_LDARG_P);
 452                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 453                         klass = NULL;
 454                 } else {
 455                         PUSH_VT (td, size);
 456                         ADD_CODE (td, MINT_LDARG_VT);
 457                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 458                         WRITE32 (td, &size);
 459                 }
 460         } else {
 461                 if (hasthis && n == 0) {
 462                         mt = MINT_TYPE_P;
 463                         ADD_CODE (td, MINT_LDARG_P);
 464                         ADD_CODE (td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 465                         klass = NULL;
 466                 } else {
 467                         ADD_CODE(td, MINT_LDARG_I1 + (mt - MINT_TYPE_I1));
 468                         ADD_CODE(td, td->rtm->arg_offsets [n]); /* FIX for large offset */
 469                         if (mt == MINT_TYPE_O)
 470                                 klass = mono_class_from_mono_type (type);
 471                 }
 472         }
 473         PUSH_TYPE(td, stack_type[mt], klass);
 474 }
 475
 476 static void
 477 store_arg(TransformData *td, int n)
 478 {
 479         int mt;
 480         CHECK_STACK (td, 1);
 481         MonoType *type;
 482
 483         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 484         if (hasthis && n == 0)
 485                 type = &td->method->klass->byval_arg;
 486         else
 487                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 488
 489         mt = mint_type (type);
 490         if (mt == MINT_TYPE_VT) {
 491                 gint32 size;
 492                 MonoClass *klass = mono_class_from_mono_type (type);
 493                 if (mono_method_signature (td->method)->pinvoke)
 494                         size = mono_class_native_size (klass, NULL);
 495                 else
 496                         size = mono_class_value_size (klass, NULL);
 497                 ADD_CODE(td, MINT_STARG_VT);
 498                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 499                 WRITE32(td, &size);
 500                 if (td->sp [-1].type == STACK_TYPE_VT)
 501                         POP_VT(td, size);
 502         } else {
 503                 ADD_CODE(td, MINT_STARG_I1 + (mt - MINT_TYPE_I1));
 504                 ADD_CODE(td, td->rtm->arg_offsets [n]);
 505         }
 506         --td->sp;
 507 }
 508
 509 static void
 510 store_inarg(TransformData *td, int n)
 511 {
 512         MonoType *type;
 513         gboolean hasthis = mono_method_signature (td->method)->hasthis;
 514         if (hasthis && n == 0)
 515                 type = &td->method->klass->byval_arg;
 516         else
 517                 type = mono_method_signature (td->method)->params [n - !!hasthis];
 518
 519         int mt = mint_type (type);
 520         if (hasthis && n == 0) {
 521                 ADD_CODE (td, MINT_STINARG_P);
 522                 ADD_CODE (td, n);
 523                 return;
 524         }
 525         if (mt == MINT_TYPE_VT) {
 526                 MonoClass *klass = mono_class_from_mono_type (type);
 527                 gint32 size;
 528                 if (mono_method_signature (td->method)->pinvoke)
 529                         size = mono_class_native_size (klass, NULL);
 530                 else
 531                         size = mono_class_value_size (klass, NULL);
 532                 ADD_CODE(td, MINT_STINARG_VT);
 533                 ADD_CODE(td, n);
 534                 WRITE32(td, &size);
 535         } else {
 536                 ADD_CODE(td, MINT_STINARG_I1 + (mt - MINT_TYPE_I1));
 537                 ADD_CODE(td, n);
 538         }
 539 }
 540
 541 static void
 542 load_local(TransformData *td, int n)
 543 {
 544         MonoType *type = td->header->locals [n];
 545         int mt = mint_type (type);
 546         int offset = td->rtm->local_offsets [n];
 547         MonoClass *klass = NULL;
 548         if (mt == MINT_TYPE_VT) {
 549                 klass = mono_class_from_mono_type (type);
 550                 gint32 size = mono_class_value_size (klass, NULL);
 551                 PUSH_VT(td, size);
 552                 ADD_CODE(td, MINT_LDLOC_VT);
 553                 ADD_CODE(td, offset); /*FIX for large offset */
 554                 WRITE32(td, &size);
 555         } else {
 556                 g_assert (mt < MINT_TYPE_VT);
 557                 if (mt == MINT_TYPE_I4 && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 558                         td->last_new_ip [0] == MINT_STLOC_I4 && td->last_new_ip [1] == offset) {
 559                         td->last_new_ip [0] = MINT_STLOC_NP_I4;
 560                 } else if (mt == MINT_TYPE_O && !td->is_bb_start [td->in_start - td->il_code] && td->last_new_ip != NULL &&
 561                         td->last_new_ip [0] == MINT_STLOC_O && td->last_new_ip [1] == offset) {
 562                         td->last_new_ip [0] = MINT_STLOC_NP_O;
 563                 } else {
 564                         ADD_CODE(td, MINT_LDLOC_I1 + (mt - MINT_TYPE_I1));
 565                         ADD_CODE(td, offset); /*FIX for large offset */
 566                 }
 567                 if (mt == MINT_TYPE_O)
 568                         klass = mono_class_from_mono_type (type);
 569         }
 570         PUSH_TYPE(td, stack_type[mt], klass);
 571 }
 572
 573 static void
 574 store_local(TransformData *td, int n)
 575 {
 576         MonoType *type = td->header->locals [n];
 577         int mt = mint_type (type);
 578         int offset = td->rtm->local_offsets [n];
 579         CHECK_STACK (td, 1);
 580 #if SIZEOF_VOID_P == 8
 581         if (td->sp [-1].type == STACK_TYPE_I4 && stack_type [mt] == STACK_TYPE_I8) {
 582                 ADD_CODE(td, MINT_CONV_I8_I4);
 583                 td->sp [-1].type = STACK_TYPE_I8;
 584         }
 585 #endif
 586         if (!can_store(td->sp [-1].type, stack_type [mt])) {
 587                 g_warning("%s.%s: Store local stack type mismatch %d %d",
 588                         td->method->klass->name, td->method->name,
 589                         stack_type [mt], td->sp [-1].type);
 590         }
 591         if (mt == MINT_TYPE_VT) {
 592                 MonoClass *klass = mono_class_from_mono_type (type);
 593                 gint32 size = mono_class_value_size (klass, NULL);
 594                 ADD_CODE(td, MINT_STLOC_VT);
 595                 ADD_CODE(td, offset); /*FIX for large offset */
 596                 WRITE32(td, &size);
 597                 if (td->sp [-1].type == STACK_TYPE_VT)
 598                         POP_VT(td, size);
 599         } else {
 600                 g_assert (mt < MINT_TYPE_VT);
 601                 ADD_CODE(td, MINT_STLOC_I1 + (mt - MINT_TYPE_I1));
 602                 ADD_CODE(td, offset); /*FIX for large offset */
 603         }
 604         --td->sp;
 605 }
 606
 607 #define SIMPLE_OP(td, op) \
 608         do { \
 609                 ADD_CODE(&td, op); \
 610                 ++td.ip; \
 611         } while (0)
 612
 613 static guint16
 614 get_data_item_index (TransformData *td, void *ptr)
 615 {
 616         gpointer p = g_hash_table_lookup (td->data_hash, ptr);
 617         guint index;
 618         if (p != NULL)
 619                 return GPOINTER_TO_UINT (p) - 1;
 620         if (td->max_data_items == td->n_data_items) {
 621                 td->max_data_items = td->n_data_items == 0 ? 16 : 2 * td->max_data_items;
 622                 td->data_items = g_realloc (td->data_items, td->max_data_items * sizeof(td->data_items [0]));
 623         }
 624         index = td->n_data_items;
 625         td->data_items [index] = ptr;
 626         ++td->n_data_items;
 627         g_hash_table_insert (td->data_hash, ptr, GUINT_TO_POINTER (index + 1));
 628         return index;
 629 }
 630
 631 static gboolean
 632 jit_call_supported (MonoMethod *method, MonoMethodSignature *sig)
 633 {
 634         GSList *l;
 635
 636         if (sig->param_count > 6)
 637                 return FALSE;
 638         if (sig->pinvoke)
 639                 return FALSE;
 640         if (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 641                 return FALSE;
 642         if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
 643                 return FALSE;
 644         if (method->is_inflated)
 645                 return FALSE;
 646         if (method->string_ctor)
 647                 return FALSE;
 648
 649         for (l = jit_classes; l; l = l->next) {
 650                 char *class_name = l->data;
 651                 // FIXME: Namespaces
 652                 if (!strcmp (method->klass->name, class_name))
 653                         return TRUE;
 654         }
 655
 656         //return TRUE;
 657         return FALSE;
 658 }
 659
 660 static void
 661 interp_transform_call (TransformData *td, MonoMethod *method, MonoMethod *target_method, MonoDomain *domain, MonoGenericContext *generic_context, unsigned char *is_bb_start, int body_start_offset, MonoClass *constrained_class, gboolean readonly)
 662 {
 663         MonoImage *image = method->klass->image;
 664         MonoMethodSignature *csignature;
 665         MonoError error;
 666         int virtual = *td->ip == CEE_CALLVIRT;
 667         int calli = *td->ip == CEE_CALLI || *td->ip == CEE_MONO_CALLI_EXTRA_ARG;
 668         int i;
 669         guint32 vt_stack_used = 0;
 670         guint32 vt_res_size = 0;
 671         int op = -1;
 672         int native = 0;
 673         int is_void = 0;
 674
 675         guint32 token = read32 (td->ip + 1);
 676
 677         if (target_method == NULL) {
 678                 if (calli) {
 679                         CHECK_STACK(td, 1);
 680                         native = (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE && td->sp [-1].type == STACK_TYPE_I);
 681                         --td->sp;
 682                         if (method->wrapper_type != MONO_WRAPPER_NONE)
 683                                 csignature = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
 684                         else
 685                                 csignature = mono_metadata_parse_signature (image, token);
 686
 687                         if (generic_context) {
 688                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 689                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 690                         }
 691
 692                         target_method = NULL;
 693                 } else {
 694                         if (method->wrapper_type == MONO_WRAPPER_NONE)
 695                                 target_method = mono_get_method_full (image, token, NULL, generic_context);
 696                         else
 697                                 target_method = (MonoMethod *)mono_method_get_wrapper_data (method, token);
 698                         csignature = mono_method_signature (target_method);
 699                         if (target_method->klass == mono_defaults.string_class) {
 700                                 if (target_method->name [0] == 'g') {
 701                                         if (strcmp (target_method->name, "get_Chars") == 0)
 702                                                 op = MINT_GETCHR;
 703                                         else if (strcmp (target_method->name, "get_Length") == 0)
 704                                                 op = MINT_STRLEN;
 705                                 }
 706                         } else if (mono_class_is_subclass_of (target_method->klass, mono_defaults.array_class, FALSE)) {
 707                                 if (!strcmp (target_method->name, "get_Rank")) {
 708                                         op = MINT_ARRAY_RANK;
 709                                 } else if (!strcmp (target_method->name, "get_Length")) {
 710                                         op = MINT_LDLEN;
 711                                 } else if (!strcmp (target_method->name, "Address")) {
 712                                         op = readonly ? MINT_LDELEMA : MINT_LDELEMA_TC;
 713                                 }
 714                         } else if (target_method && generic_context) {
 715                                 csignature = mono_inflate_generic_signature (csignature, generic_context, &error);
 716                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 717                                 target_method = mono_class_inflate_generic_method_checked (target_method, generic_context, &error);
 718                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 719                         }
 720                 }
 721         } else {
 722                 csignature = mono_method_signature (target_method);
 723         }
 724
 725         if (constrained_class) {
 726                 if (constrained_class->enumtype && !strcmp (target_method->name, "GetHashCode")) {
 727                         /* Use the corresponding method from the base type to avoid boxing */
 728                         MonoType *base_type = mono_class_enum_basetype (constrained_class);
 729                         g_assert (base_type);
 730                         constrained_class = mono_class_from_mono_type (base_type);
 731                         target_method = mono_class_get_method_from_name (constrained_class, target_method->name, 0);
 732                         g_assert (target_method);
 733                 }
 734         }
 735
 736         if (constrained_class) {
 737                 mono_class_setup_vtable (constrained_class);
 738 #if DEBUG_INTERP
 739                 g_print ("CONSTRAINED.CALLVIRT: %s::%s.  %s (%p) ->\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 740 #endif
 741                 target_method = mono_get_method_constrained_with_method (image, target_method, constrained_class, generic_context, &error);
 742 #if DEBUG_INTERP
 743                 g_print ("                    : %s::%s.  %s (%p)\n", target_method->klass->name, target_method->name, mono_signature_full_name (target_method->signature), target_method);
 744 #endif
 745                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 746                 mono_class_setup_vtable (target_method->klass);
 747
 748                 if (constrained_class->valuetype && (target_method->klass == mono_defaults.object_class || target_method->klass == mono_defaults.enum_class->parent || target_method->klass == mono_defaults.enum_class)) {
 749                         if (target_method->klass == mono_defaults.enum_class && (td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 750                                 /* managed pointer on the stack, we need to deref that puppy */
 751                                 ADD_CODE (td, MINT_LDIND_I);
 752                                 ADD_CODE (td, csignature->param_count);
 753                         }
 754                         ADD_CODE (td, MINT_BOX);
 755                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 756                         ADD_CODE (td, csignature->param_count);
 757                 } else if (!constrained_class->valuetype) {
 758                         /* managed pointer on the stack, we need to deref that puppy */
 759                         ADD_CODE (td, MINT_LDIND_I);
 760                         ADD_CODE (td, csignature->param_count);
 761                 } else {
 762                         if (target_method->klass->valuetype) {
 763                                 /* Own method */
 764                         } else {
 765                                 /* Interface method */
 766                                 int ioffset, slot;
 767
 768                                 mono_class_setup_vtable (constrained_class);
 769                                 ioffset = mono_class_interface_offset (constrained_class, target_method->klass);
 770                                 if (ioffset == -1)
 771                                         g_error ("type load error: constrained_class");
 772                                 slot = mono_method_get_vtable_slot (target_method);
 773                                 if (slot == -1)
 774                                         g_error ("type load error: target_method->klass");
 775                                 target_method = constrained_class->vtable [ioffset + slot];
 776
 777                                 if (target_method->klass == mono_defaults.enum_class) {
 778                                         if ((td->sp - csignature->param_count - 1)->type == STACK_TYPE_MP) {
 779                                                 /* managed pointer on the stack, we need to deref that puppy */
 780                                                 ADD_CODE (td, MINT_LDIND_I);
 781                                                 ADD_CODE (td, csignature->param_count);
 782                                         }
 783                                         ADD_CODE (td, MINT_BOX);
 784                                         ADD_CODE (td, get_data_item_index (td, constrained_class));
 785                                         ADD_CODE (td, csignature->param_count);
 786                                 }
 787                         }
 788                         virtual = FALSE;
 789                 }
 790         }
 791
 792         if (target_method)
 793                 mono_class_init (target_method->klass);
 794
 795         CHECK_STACK (td, csignature->param_count + csignature->hasthis);
 796         if (!calli && (!virtual || (target_method->flags & METHOD_ATTRIBUTE_VIRTUAL) == 0) &&
 797                 (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) == 0 &&
 798                 (target_method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) == 0 &&
 799                 !(target_method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING)) {
 800                 int called_inited = mono_class_vtable (domain, target_method->klass)->initialized;
 801                 MonoMethodHeader *mheader = mono_method_get_header (target_method);
 802
 803                 if (/*mono_metadata_signature_equal (method->signature, target_method->signature) */ method == target_method && *(td->ip + 5) == CEE_RET) {
 804                         int offset;
 805                         if (mono_interp_traceopt)
 806                                 g_print ("Optimize tail call of %s.%s\n", target_method->klass->name, target_method->name);
 807
 808                         for (i = csignature->param_count - 1 + !!csignature->hasthis; i >= 0; --i)
 809                                 store_arg (td, i);
 810
 811                         ADD_CODE(td, MINT_BR_S);
 812                         offset = body_start_offset - ((td->new_ip - 1) - td->new_code);
 813                         ADD_CODE(td, offset);
 814                         if (!is_bb_start [td->ip + 5 - td->il_code])
 815                                 ++td->ip; /* gobble the CEE_RET if it isn't branched to */
 816                         td->ip += 5;
 817                         return;
 818                 } else {
 819                         /* mheader might not exist if this is a delegate invoc, etc */
 820                         if (mheader && *mheader->code == CEE_RET && called_inited) {
 821                                 if (mono_interp_traceopt)
 822                                         g_print ("Inline (empty) call of %s.%s\n", target_method->klass->name, target_method->name);
 823                                 for (i = 0; i < csignature->param_count; i++) {
 824                                         ADD_CODE (td, MINT_POP); /*FIX: vt */
 825                                         ADD_CODE (td, 0);
 826                                 }
 827                                 if (csignature->hasthis) {
 828                                         if (virtual)
 829                                                 ADD_CODE(td, MINT_CKNULL);
 830                                         ADD_CODE (td, MINT_POP);
 831                                         ADD_CODE (td, 0);
 832                                 }
 833                                 td->sp -= csignature->param_count + csignature->hasthis;
 834                                 td->ip += 5;
 835                                 return;
 836                         }
 837                 }
 838         }
 839         if (method->wrapper_type == MONO_WRAPPER_NONE && target_method != NULL) {
 840                 if (target_method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
 841                         target_method = mono_marshal_get_native_wrapper (target_method, FALSE, FALSE);
 842                 if (!virtual && target_method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
 843                         target_method = mono_marshal_get_synchronized_wrapper (target_method);
 844         }
 845         g_assert (csignature->call_convention == MONO_CALL_DEFAULT || csignature->call_convention == MONO_CALL_C);
 846         td->sp -= csignature->param_count + !!csignature->hasthis;
 847         for (i = 0; i < csignature->param_count; ++i) {
 848                 if (td->sp [i + !!csignature->hasthis].type == STACK_TYPE_VT) {
 849                         gint32 size;
 850                         MonoClass *klass = mono_class_from_mono_type (csignature->params [i]);
 851                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 852                                 size = mono_class_native_size (klass, NULL);
 853                         else
 854                                 size = mono_class_value_size (klass, NULL);
 855                         size = (size + 7) & ~7;
 856                         vt_stack_used += size;
 857                 }
 858         }
 859
 860         /* need to handle typedbyref ... */
 861         if (csignature->ret->type != MONO_TYPE_VOID) {
 862                 int mt = mint_type(csignature->ret);
 863                 MonoClass *klass = mono_class_from_mono_type (csignature->ret);
 864                 if (mt == MINT_TYPE_VT) {
 865                         if (csignature->pinvoke && method->wrapper_type != MONO_WRAPPER_NONE)
 866                                 vt_res_size = mono_class_native_size (klass, NULL);
 867                         else
 868                                 vt_res_size = mono_class_value_size (klass, NULL);
 869                         PUSH_VT(td, vt_res_size);
 870                 }
 871                 PUSH_TYPE(td, stack_type[mt], klass);
 872         } else
 873                 is_void = TRUE;
 874
 875         if (op >= 0) {
 876                 ADD_CODE (td, op);
 877 #if SIZEOF_VOID_P == 8
 878                 if (op == MINT_LDLEN)
 879                         ADD_CODE (td, MINT_CONV_I4_I8);
 880 #endif
 881                 if (op == MINT_LDELEMA || op == MINT_LDELEMA_TC) {
 882                         ADD_CODE (td, get_data_item_index (td, target_method->klass));
 883                         ADD_CODE (td, 1 + target_method->klass->rank);
 884                 }
 885         } else if (!calli && !virtual && jit_call_supported (target_method, csignature)) {
 886                 ADD_CODE(td, MINT_JIT_CALL);
 887                 ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 888                 mono_error_assert_ok (&error);
 889         } else {
 890                 if (calli)
 891                         ADD_CODE(td, native ? MINT_CALLI_NAT : MINT_CALLI);
 892                 else if (virtual)
 893                         ADD_CODE(td, is_void ? MINT_VCALLVIRT : MINT_CALLVIRT);
 894                 else
 895                         ADD_CODE(td, is_void ? MINT_VCALL : MINT_CALL);
 896
 897                 if (calli) {
 898                         ADD_CODE(td, get_data_item_index (td, (void *)csignature));
 899                 } else {
 900                         ADD_CODE(td, get_data_item_index (td, (void *)mono_interp_get_runtime_method (domain, target_method, &error)));
 901                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 902                 }
 903         }
 904         td->ip += 5;
 905         if (vt_stack_used != 0 || vt_res_size != 0) {
 906                 ADD_CODE(td, MINT_VTRESULT);
 907                 ADD_CODE(td, vt_res_size);
 908                 WRITE32(td, &vt_stack_used);
 909                 td->vt_sp -= vt_stack_used;
 910         }
 911 }
 912
 913 static MonoClassField *
 914 interp_field_from_token (MonoMethod *method, guint32 token, MonoClass **klass, MonoGenericContext *generic_context)
 915 {
 916         MonoClassField *field = NULL;
 917         if (method->wrapper_type != MONO_WRAPPER_NONE) {
 918                 field = (MonoClassField *) mono_method_get_wrapper_data (method, token);
 919                 *klass = field->parent;
 920         } else {
 921                 MonoError error;
 922                 error_init (&error);
 923                 field = mono_field_from_token_checked (method->klass->image, token, klass, generic_context, &error);
 924                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
 925         }
 926         return field;
 927 }
 928
 929 static void
 930 interp_save_debug_info (RuntimeMethod *rtm, MonoMethodHeader *header, TransformData *td, GArray *line_numbers)
 931 {
 932         MonoDebugMethodJitInfo *dinfo;
 933         int i;
 934
 935         if (!mono_debug_enabled ())
 936                 return;
 937
 938         /*
 939          * We save the debug info in the same way the JIT does it, treating the interpreter IR as the native code.
 940          */
 941
 942         dinfo = g_new0 (MonoDebugMethodJitInfo, 1);
 943         dinfo->num_locals = header->num_locals;
 944         dinfo->locals = g_new0 (MonoDebugVarInfo, header->num_locals);
 945         dinfo->code_start = (guint8*)rtm->code;
 946         dinfo->code_size = td->new_ip - td->new_code;
 947         dinfo->epilogue_begin = 0;
 948         dinfo->has_var_info = FALSE;
 949         dinfo->num_line_numbers = line_numbers->len;
 950         dinfo->line_numbers = g_new0 (MonoDebugLineNumberEntry, dinfo->num_line_numbers);
 951         for (i = 0; i < dinfo->num_line_numbers; i++)
 952                 dinfo->line_numbers [i] = g_array_index (line_numbers, MonoDebugLineNumberEntry, i);
 953         mono_debug_add_method (rtm->method, dinfo, mono_domain_get ());
 954
 955         mono_debug_free_method_jit_info (dinfo);
 956 }
 957
 958 static void
 959 generate (MonoMethod *method, RuntimeMethod *rtm, unsigned char *is_bb_start, MonoGenericContext *generic_context)
 960 {
 961         MonoMethodHeader *header = mono_method_get_header (method);
 962         MonoMethodSignature *signature = mono_method_signature (method);
 963         MonoImage *image = method->klass->image;
 964         MonoDomain *domain = mono_domain_get ();
 965         MonoClass *constrained_class = NULL;
 966         MonoError error;
 967         int offset, mt, i, i32;
 968         gboolean readonly = FALSE;
 969         MonoClass *klass;
 970         MonoClassField *field;
 971         const unsigned char *end;
 972         int new_in_start_offset;
 973         int body_start_offset;
 974         int target;
 975         guint32 token;
 976         TransformData td;
 977         int generating_code = 1;
 978         GArray *line_numbers;
 979
 980         memset(&td, 0, sizeof(td));
 981         td.method = method;
 982         td.rtm = rtm;
 983         td.is_bb_start = is_bb_start;
 984         td.il_code = header->code;
 985         td.code_size = header->code_size;
 986         td.header = header;
 987         td.max_code_size = td.code_size;
 988         td.new_code = (unsigned short *)g_malloc(td.max_code_size * sizeof(gushort));
 989         td.new_code_end = td.new_code + td.max_code_size;
 990         td.in_offsets = g_malloc0(header->code_size * sizeof(int));
 991         td.forward_refs = g_malloc(header->code_size * sizeof(int));
 992         td.stack_state = g_malloc0(header->code_size * sizeof(StackInfo *));
 993         td.stack_height = g_malloc(header->code_size * sizeof(int));
 994         td.vt_stack_size = g_malloc(header->code_size * sizeof(int));
 995         td.n_data_items = 0;
 996         td.max_data_items = 0;
 997         td.data_items = NULL;
 998         td.data_hash = g_hash_table_new (NULL, NULL);
 999         td.clause_indexes = g_malloc (header->code_size * sizeof (int));
1000         rtm->data_items = td.data_items;
1001         for (i = 0; i < header->code_size; i++) {
1002                 td.forward_refs [i] = -1;
1003                 td.stack_height [i] = -1;
1004                 td.clause_indexes [i] = -1;
1005         }
1006         td.new_ip = td.new_code;
1007         td.last_new_ip = NULL;
1008
1009         td.stack = g_malloc0 ((header->max_stack + 1) * sizeof (td.stack [0]));
1010         td.sp = td.stack;
1011         td.max_stack_height = 0;
1012
1013         line_numbers = g_array_new (FALSE, TRUE, sizeof (MonoDebugLineNumberEntry));
1014
1015         for (i = 0; i < header->num_clauses; i++) {
1016                 MonoExceptionClause *c = header->clauses + i;
1017                 td.stack_height [c->handler_offset] = 0;
1018                 td.vt_stack_size [c->handler_offset] = 0;
1019                 td.is_bb_start [c->handler_offset] = 1;
1020
1021                 td.stack_height [c->handler_offset] = 1;
1022                 td.stack_state [c->handler_offset] = g_malloc0(sizeof(StackInfo));
1023                 td.stack_state [c->handler_offset][0].type = STACK_TYPE_O;
1024                 td.stack_state [c->handler_offset][0].klass = NULL; /*FIX*/
1025
1026                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER) {
1027                         td.stack_height [c->data.filter_offset] = 0;
1028                         td.vt_stack_size [c->data.filter_offset] = 0;
1029                         td.is_bb_start [c->data.filter_offset] = 1;
1030
1031                         td.stack_height [c->data.filter_offset] = 1;
1032                         td.stack_state [c->data.filter_offset] = g_malloc0(sizeof(StackInfo));
1033                         td.stack_state [c->data.filter_offset][0].type = STACK_TYPE_O;
1034                         td.stack_state [c->data.filter_offset][0].klass = NULL; /*FIX*/
1035                 }
1036
1037                 if ((c->flags & MONO_EXCEPTION_CLAUSE_FINALLY) || (c->flags & MONO_EXCEPTION_CLAUSE_FAULT)) {
1038                         for (int j = c->handler_offset; j < c->handler_offset + c->handler_len; ++j) {
1039                                 if (td.clause_indexes [j] == -1)
1040                                         td.clause_indexes [j] = i;
1041                         }
1042                 }
1043         }
1044
1045         td.ip = header->code;
1046         end = td.ip + header->code_size;
1047
1048         if (mono_interp_traceopt) {
1049                 char *tmp = mono_disasm_code (NULL, method, td.ip, end);
1050                 char *name = mono_method_full_name (method, TRUE);
1051                 g_print ("Method %s, original code:\n", name);
1052                 g_print ("%s\n", tmp);
1053                 g_free (tmp);
1054                 g_free (name);
1055         }
1056
1057         if (signature->hasthis)
1058                 store_inarg (&td, 0);
1059         for (i = 0; i < signature->param_count; i++)
1060                 store_inarg (&td, i + !!signature->hasthis);
1061
1062         body_start_offset = td.new_ip - td.new_code;
1063
1064         for (i = 0; i < header->num_locals; i++) {
1065                 int mt = mint_type(header->locals [i]);
1066                 if (mt == MINT_TYPE_VT || mt == MINT_TYPE_O || mt == MINT_TYPE_P) {
1067                         ADD_CODE(&td, MINT_INITLOCALS);
1068                         break;
1069                 }
1070         }
1071
1072         while (td.ip < end) {
1073                 int in_offset;
1074
1075                 g_assert (td.sp >= td.stack);
1076                 g_assert (td.vt_sp < 0x10000000);
1077                 in_offset = td.ip - header->code;
1078                 td.in_offsets [in_offset] = td.new_ip - td.new_code;
1079                 new_in_start_offset = td.new_ip - td.new_code;
1080                 td.in_start = td.ip;
1081
1082                 MonoDebugLineNumberEntry lne;
1083                 lne.native_offset = td.new_ip - td.new_code;
1084                 lne.il_offset = td.ip - header->code;
1085                 g_array_append_val (line_numbers, lne);
1086
1087                 while (td.forward_refs [in_offset] >= 0) {
1088                         int j = td.forward_refs [in_offset];
1089                         int slot;
1090                         td.forward_refs [in_offset] = td.forward_refs [j];
1091                         if (td.in_offsets [j] < 0) {
1092                                 int old_switch_offset = -td.in_offsets [j];
1093                                 int new_switch_offset = td.in_offsets [old_switch_offset];
1094                                 int switch_case = (j - old_switch_offset - 5) / 4;
1095                                 int n_cases = read32 (header->code + old_switch_offset + 1);
1096                                 offset = (td.new_ip - td.new_code) - (new_switch_offset + 2 * n_cases + 3);
1097                                 slot = new_switch_offset + 3 + 2 * switch_case;
1098                                 td.new_code [slot] = * (unsigned short *)(&offset);
1099                                 td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1100                         } else {
1101                                 int op = td.new_code [td.in_offsets [j]];
1102                                 if (mono_interp_opargtype [op] == MintOpShortBranch) {
1103                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1104                                         g_assert (offset <= 32767);
1105                                         slot = td.in_offsets [j] + 1;
1106                                         td.new_code [slot] = offset;
1107                                 } else {
1108                                         offset = (td.new_ip - td.new_code) - td.in_offsets [j];
1109                                         slot = td.in_offsets [j] + 1;
1110                                         td.new_code [slot] = * (unsigned short *)(&offset);
1111                                         td.new_code [slot + 1] = * ((unsigned short *)&offset + 1);
1112                                 }
1113                         }
1114                 }
1115                 if (td.stack_height [in_offset] >= 0) {
1116                         g_assert (is_bb_start [in_offset]);
1117                         if (td.stack_height [in_offset] > 0)
1118                                 memcpy (td.stack, td.stack_state [in_offset], td.stack_height [in_offset] * sizeof(td.stack [0]));
1119                         td.sp = td.stack + td.stack_height [in_offset];
1120                         td.vt_sp = td.vt_stack_size [in_offset];
1121                 }
1122                 if (is_bb_start [in_offset]) {
1123                         generating_code = 1;
1124                 }
1125                 if (!generating_code) {
1126                         while (td.ip < end && !is_bb_start [td.ip - td.il_code])
1127                                 ++td.ip;
1128                         continue;
1129                 }
1130                 if (mono_interp_traceopt > 1) {
1131                         printf("IL_%04lx %s %-10s -> IL_%04lx, sp %ld, %s %-12s vt_sp %u (max %u)\n",
1132                                 td.ip - td.il_code,
1133                                 td.is_bb_start [td.ip - td.il_code] == 3 ? "<>" :
1134                                 td.is_bb_start [td.ip - td.il_code] == 2 ? "< " :
1135                                 td.is_bb_start [td.ip - td.il_code] == 1 ? " >" : "  ",
1136                                 mono_opcode_name (*td.ip), td.new_ip - td.new_code, td.sp - td.stack,
1137                                 td.sp > td.stack ? stack_type_string [td.sp [-1].type] : "  ",
1138                                 (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) : "",
1139                                 td.vt_sp, td.max_vt_sp);
1140                 }
1141                 switch (*td.ip) {
1142                 case CEE_NOP:
1143                         /* lose it */
1144                         ++td.ip;
1145                         break;
1146                 case CEE_BREAK:
1147                         SIMPLE_OP(td, MINT_BREAK);
1148                         break;
1149                 case CEE_LDARG_0:
1150                 case CEE_LDARG_1:
1151                 case CEE_LDARG_2:
1152                 case CEE_LDARG_3:
1153                         load_arg (&td, *td.ip - CEE_LDARG_0);
1154                         ++td.ip;
1155                         break;
1156                 case CEE_LDLOC_0:
1157                 case CEE_LDLOC_1:
1158                 case CEE_LDLOC_2:
1159                 case CEE_LDLOC_3:
1160                         load_local (&td, *td.ip - CEE_LDLOC_0);
1161                         ++td.ip;
1162                         break;
1163                 case CEE_STLOC_0:
1164                 case CEE_STLOC_1:
1165                 case CEE_STLOC_2:
1166                 case CEE_STLOC_3:
1167                         store_local (&td, *td.ip - CEE_STLOC_0);
1168                         ++td.ip;
1169                         break;
1170                 case CEE_LDARG_S:
1171                         load_arg (&td, ((guint8 *)td.ip)[1]);
1172                         td.ip += 2;
1173                         break;
1174                 case CEE_LDARGA_S: {
1175                         /* NOTE: n includes this */
1176                         int n = ((guint8 *) td.ip) [1];
1177                         ADD_CODE (&td, MINT_LDARGA);
1178                         ADD_CODE (&td, td.rtm->arg_offsets [n]);
1179                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1180                         td.ip += 2;
1181                         break;
1182                 }
1183                 case CEE_STARG_S:
1184                         store_arg (&td, ((guint8 *)td.ip)[1]);
1185                         td.ip += 2;
1186                         break;
1187                 case CEE_LDLOC_S:
1188                         load_local (&td, ((guint8 *)td.ip)[1]);
1189                         td.ip += 2;
1190                         break;
1191                 case CEE_LDLOCA_S:
1192                         ADD_CODE(&td, MINT_LDLOCA_S);
1193                         ADD_CODE(&td, td.rtm->local_offsets [((guint8 *)td.ip)[1]]);
1194                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
1195                         td.ip += 2;
1196                         break;
1197                 case CEE_STLOC_S:
1198                         store_local (&td, ((guint8 *)td.ip)[1]);
1199                         td.ip += 2;
1200                         break;
1201                 case CEE_LDNULL:
1202                         SIMPLE_OP(td, MINT_LDNULL);
1203                         PUSH_TYPE(&td, STACK_TYPE_O, NULL);
1204                         break;
1205                 case CEE_LDC_I4_M1:
1206                         SIMPLE_OP(td, MINT_LDC_I4_M1);
1207                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1208                         break;
1209                 case CEE_LDC_I4_0:
1210                         if (!td.is_bb_start[td.ip + 1 - td.il_code] && td.ip [1] == 0xfe && td.ip [2] == CEE_CEQ &&
1211                                 td.sp > td.stack && td.sp [-1].type == STACK_TYPE_I4) {
1212                                 SIMPLE_OP(td, MINT_CEQ0_I4);
1213                                 td.ip += 2;
1214                         } else {
1215                                 SIMPLE_OP(td, MINT_LDC_I4_0);
1216                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1217                         }
1218                         break;
1219                 case CEE_LDC_I4_1:
1220                         if (!td.is_bb_start[td.ip + 1 - td.il_code] &&
1221                                 (td.ip [1] == CEE_ADD || td.ip [1] == CEE_SUB) && td.sp [-1].type == STACK_TYPE_I4) {
1222                                 ADD_CODE(&td, td.ip [1] == CEE_ADD ? MINT_ADD1_I4 : MINT_SUB1_I4);
1223                                 td.ip += 2;
1224                         } else {
1225                                 SIMPLE_OP(td, MINT_LDC_I4_1);
1226                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1227                         }
1228                         break;
1229                 case CEE_LDC_I4_2:
1230                 case CEE_LDC_I4_3:
1231                 case CEE_LDC_I4_4:
1232                 case CEE_LDC_I4_5:
1233                 case CEE_LDC_I4_6:
1234                 case CEE_LDC_I4_7:
1235                 case CEE_LDC_I4_8:
1236                         SIMPLE_OP(td, (*td.ip - CEE_LDC_I4_0) + MINT_LDC_I4_0);
1237                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1238                         break;
1239                 case CEE_LDC_I4_S:
1240                         ADD_CODE(&td, MINT_LDC_I4_S);
1241                         ADD_CODE(&td, ((gint8 *) td.ip) [1]);
1242                         td.ip += 2;
1243                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1244                         break;
1245                 case CEE_LDC_I4:
1246                         i32 = read32 (td.ip + 1);
1247                         ADD_CODE(&td, MINT_LDC_I4);
1248                         WRITE32(&td, &i32);
1249                         td.ip += 5;
1250                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
1251                         break;
1252                 case CEE_LDC_I8: {
1253                         gint64 val = read64 (td.ip + 1);
1254                         ADD_CODE(&td, MINT_LDC_I8);
1255                         WRITE64(&td, &val);
1256                         td.ip += 9;
1257                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I8);
1258                         break;
1259                 }
1260                 case CEE_LDC_R4: {
1261                         float val;
1262                         readr4 (td.ip + 1, &val);
1263                         ADD_CODE(&td, MINT_LDC_R4);
1264                         WRITE32(&td, &val);
1265                         td.ip += 5;
1266                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1267                         break;
1268                 }
1269                 case CEE_LDC_R8: {
1270                         double val;
1271                         readr8 (td.ip + 1, &val);
1272                         ADD_CODE(&td, MINT_LDC_R8);
1273                         WRITE64(&td, &val);
1274                         td.ip += 9;
1275                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_R8);
1276                         break;
1277                 }
1278                 case CEE_DUP: {
1279                         int type = td.sp [-1].type;
1280                         MonoClass *klass = td.sp [-1].klass;
1281                         if (td.sp [-1].type == STACK_TYPE_VT) {
1282                                 gint32 size = mono_class_value_size (klass, NULL);
1283                                 PUSH_VT(&td, size);
1284                                 ADD_CODE(&td, MINT_DUP_VT);
1285                                 WRITE32(&td, &size);
1286                                 td.ip ++;
1287                         } else
1288                                 SIMPLE_OP(td, MINT_DUP);
1289                         PUSH_TYPE(&td, type, klass);
1290                         break;
1291                 }
1292                 case CEE_POP:
1293                         CHECK_STACK(&td, 1);
1294                         SIMPLE_OP(td, MINT_POP);
1295                         ADD_CODE (&td, 0);
1296                         if (td.sp [-1].type == STACK_TYPE_VT) {
1297                                 int size = mono_class_value_size (td.sp [-1].klass, NULL);
1298                                 size = (size + 7) & ~7;
1299                                 ADD_CODE(&td, MINT_VTRESULT);
1300                                 ADD_CODE(&td, 0);
1301                                 WRITE32(&td, &size);
1302                                 td.vt_sp -= size;
1303                         }
1304                         --td.sp;
1305                         break;
1306                 case CEE_JMP: {
1307                         MonoMethod *m;
1308                         if (td.sp > td.stack)
1309                                 g_warning ("CEE_JMP: stack must be empty");
1310                         token = read32 (td.ip + 1);
1311                         m = mono_get_method_full (image, token, NULL, generic_context);
1312                         ADD_CODE (&td, MINT_JMP);
1313                         ADD_CODE (&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1314                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1315                         td.ip += 5;
1316                         break;
1317                 }
1318                 case CEE_CALLVIRT: /* Fall through */
1319                 case CEE_CALLI:    /* Fall through */
1320                 case CEE_CALL: {
1321                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, constrained_class, readonly);
1322                         constrained_class = NULL;
1323                         readonly = FALSE;
1324                         break;
1325                 }
1326                 case CEE_RET: {
1327                         int vt_size = 0;
1328                         if (signature->ret->type != MONO_TYPE_VOID) {
1329                                 --td.sp;
1330                                 MonoClass *klass = mono_class_from_mono_type (signature->ret);
1331                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1332                                         vt_size = mono_class_value_size (klass, NULL);
1333                                         vt_size = (vt_size + 7) & ~7;
1334                                 }
1335                         }
1336                         if (td.sp > td.stack)
1337                                 g_warning ("%s.%s: CEE_RET: more values on stack: %d", td.method->klass->name, td.method->name, td.sp - td.stack);
1338                         if (td.vt_sp != vt_size)
1339                                 g_error ("%s.%s: CEE_RET: value type stack: %d vs. %d", td.method->klass->name, td.method->name, td.vt_sp, vt_size);
1340                         if (vt_size == 0)
1341                                 SIMPLE_OP(td, signature->ret->type == MONO_TYPE_VOID ? MINT_RET_VOID : MINT_RET);
1342                         else {
1343                                 ADD_CODE(&td, MINT_RET_VT);
1344                                 WRITE32(&td, &vt_size);
1345                                 ++td.ip;
1346                         }
1347                         generating_code = 0;
1348                         break;
1349                 }
1350                 case CEE_BR:
1351                         handle_branch (&td, MINT_BR_S, MINT_BR, 5 + read32 (td.ip + 1));
1352                         td.ip += 5;
1353                         generating_code = 0;
1354                         break;
1355                 case CEE_BR_S:
1356                         handle_branch (&td, MINT_BR_S, MINT_BR, 2 + (gint8)td.ip [1]);
1357                         td.ip += 2;
1358                         generating_code = 0;
1359                         break;
1360                 case CEE_BRFALSE:
1361                         one_arg_branch (&td, MINT_BRFALSE_I4, 5 + read32 (td.ip + 1));
1362                         td.ip += 5;
1363                         break;
1364                 case CEE_BRFALSE_S:
1365                         one_arg_branch (&td, MINT_BRFALSE_I4, 2 + (gint8)td.ip [1]);
1366                         td.ip += 2;
1367                         break;
1368                 case CEE_BRTRUE:
1369                         one_arg_branch (&td, MINT_BRTRUE_I4, 5 + read32 (td.ip + 1));
1370                         td.ip += 5;
1371                         break;
1372                 case CEE_BRTRUE_S:
1373                         one_arg_branch (&td, MINT_BRTRUE_I4, 2 + (gint8)td.ip [1]);
1374                         td.ip += 2;
1375                         break;
1376                 case CEE_BEQ:
1377                         two_arg_branch (&td, MINT_BEQ_I4, 5 + read32 (td.ip + 1));
1378                         td.ip += 5;
1379                         break;
1380                 case CEE_BEQ_S:
1381                         two_arg_branch (&td, MINT_BEQ_I4, 2 + (gint8) td.ip [1]);
1382                         td.ip += 2;
1383                         break;
1384                 case CEE_BGE:
1385                         two_arg_branch (&td, MINT_BGE_I4, 5 + read32 (td.ip + 1));
1386                         td.ip += 5;
1387                         break;
1388                 case CEE_BGE_S:
1389                         two_arg_branch (&td, MINT_BGE_I4, 2 + (gint8) td.ip [1]);
1390                         td.ip += 2;
1391                         break;
1392                 case CEE_BGT:
1393                         two_arg_branch (&td, MINT_BGT_I4, 5 + read32 (td.ip + 1));
1394                         td.ip += 5;
1395                         break;
1396                 case CEE_BGT_S:
1397                         two_arg_branch (&td, MINT_BGT_I4, 2 + (gint8) td.ip [1]);
1398                         td.ip += 2;
1399                         break;
1400                 case CEE_BLT:
1401                         two_arg_branch (&td, MINT_BLT_I4, 5 + read32 (td.ip + 1));
1402                         td.ip += 5;
1403                         break;
1404                 case CEE_BLT_S:
1405                         two_arg_branch (&td, MINT_BLT_I4, 2 + (gint8) td.ip [1]);
1406                         td.ip += 2;
1407                         break;
1408                 case CEE_BLE:
1409                         two_arg_branch (&td, MINT_BLE_I4, 5 + read32 (td.ip + 1));
1410                         td.ip += 5;
1411                         break;
1412                 case CEE_BLE_S:
1413                         two_arg_branch (&td, MINT_BLE_I4, 2 + (gint8) td.ip [1]);
1414                         td.ip += 2;
1415                         break;
1416                 case CEE_BNE_UN:
1417                         two_arg_branch (&td, MINT_BNE_UN_I4, 5 + read32 (td.ip + 1));
1418                         td.ip += 5;
1419                         break;
1420                 case CEE_BNE_UN_S:
1421                         two_arg_branch (&td, MINT_BNE_UN_I4, 2 + (gint8) td.ip [1]);
1422                         td.ip += 2;
1423                         break;
1424                 case CEE_BGE_UN:
1425                         two_arg_branch (&td, MINT_BGE_UN_I4, 5 + read32 (td.ip + 1));
1426                         td.ip += 5;
1427                         break;
1428                 case CEE_BGE_UN_S:
1429                         two_arg_branch (&td, MINT_BGE_UN_I4, 2 + (gint8) td.ip [1]);
1430                         td.ip += 2;
1431                         break;
1432                 case CEE_BGT_UN:
1433                         two_arg_branch (&td, MINT_BGT_UN_I4, 5 + read32 (td.ip + 1));
1434                         td.ip += 5;
1435                         break;
1436                 case CEE_BGT_UN_S:
1437                         two_arg_branch (&td, MINT_BGT_UN_I4, 2 + (gint8) td.ip [1]);
1438                         td.ip += 2;
1439                         break;
1440                 case CEE_BLE_UN:
1441                         two_arg_branch (&td, MINT_BLE_UN_I4, 5 + read32 (td.ip + 1));
1442                         td.ip += 5;
1443                         break;
1444                 case CEE_BLE_UN_S:
1445                         two_arg_branch (&td, MINT_BLE_UN_I4, 2 + (gint8) td.ip [1]);
1446                         td.ip += 2;
1447                         break;
1448                 case CEE_BLT_UN:
1449                         two_arg_branch (&td, MINT_BLT_UN_I4, 5 + read32 (td.ip + 1));
1450                         td.ip += 5;
1451                         break;
1452                 case CEE_BLT_UN_S:
1453                         two_arg_branch (&td, MINT_BLT_UN_I4, 2 + (gint8) td.ip [1]);
1454                         td.ip += 2;
1455                         break;
1456                 case CEE_SWITCH: {
1457                         guint32 n;
1458                         const unsigned char *next_ip;
1459                         const unsigned char *base_ip = td.ip;
1460                         unsigned short *next_new_ip;
1461                         ++td.ip;
1462                         n = read32 (td.ip);
1463                         ADD_CODE (&td, MINT_SWITCH);
1464                         WRITE32 (&td, &n);
1465                         td.ip += 4;
1466                         next_ip = td.ip + n * 4;
1467                         next_new_ip = td.new_ip + n * 2;
1468                         --td.sp;
1469                         int stack_height = td.sp - td.stack;
1470                         for (i = 0; i < n; i++) {
1471                                 offset = read32 (td.ip);
1472                                 target = next_ip - td.il_code + offset;
1473                                 if (offset < 0) {
1474 #if DEBUG_INTERP
1475                                         if (stack_height > 0 && stack_height != td.stack_height [target])
1476                                                 g_warning ("SWITCH with back branch and non-empty stack");
1477 #endif
1478                                         target = td.in_offsets [target] - (next_new_ip - td.new_code);
1479                                 } else {
1480                                         td.stack_height [target] = stack_height;
1481                                         td.vt_stack_size [target] = td.vt_sp;
1482                                         if (stack_height > 0)
1483                                                 td.stack_state [target] = g_memdup (td.stack, stack_height * sizeof (td.stack [0]));
1484                                         int prev = td.forward_refs [target];
1485                                         td.forward_refs [td.ip - td.il_code] = prev;
1486                                         td.forward_refs [target] = td.ip - td.il_code;
1487                                         td.in_offsets [td.ip - td.il_code] = - (base_ip - td.il_code);
1488                                 }
1489                                 WRITE32 (&td, &target);
1490                                 td.ip += 4;
1491                         }
1492                         break;
1493                 }
1494                 case CEE_LDIND_I1:
1495                         CHECK_STACK (&td, 1);
1496                         SIMPLE_OP (td, MINT_LDIND_I1);
1497                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1498                         break;
1499                 case CEE_LDIND_U1:
1500                         CHECK_STACK (&td, 1);
1501                         SIMPLE_OP (td, MINT_LDIND_U1);
1502                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1503                         break;
1504                 case CEE_LDIND_I2:
1505                         CHECK_STACK (&td, 1);
1506                         SIMPLE_OP (td, MINT_LDIND_I2);
1507                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1508                         break;
1509                 case CEE_LDIND_U2:
1510                         CHECK_STACK (&td, 1);
1511                         SIMPLE_OP (td, MINT_LDIND_U2);
1512                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1513                         break;
1514                 case CEE_LDIND_I4:
1515                         CHECK_STACK (&td, 1);
1516                         SIMPLE_OP (td, MINT_LDIND_I4);
1517                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1518                         break;
1519                 case CEE_LDIND_U4:
1520                         CHECK_STACK (&td, 1);
1521                         SIMPLE_OP (td, MINT_LDIND_U4);
1522                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1523                         break;
1524                 case CEE_LDIND_I8:
1525                         CHECK_STACK (&td, 1);
1526                         SIMPLE_OP (td, MINT_LDIND_I8);
1527                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1528                         break;
1529                 case CEE_LDIND_I:
1530                         CHECK_STACK (&td, 1);
1531                         SIMPLE_OP (td, MINT_LDIND_I);
1532                         ADD_CODE (&td, 0);
1533                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1534                         break;
1535                 case CEE_LDIND_R4:
1536                         CHECK_STACK (&td, 1);
1537                         SIMPLE_OP (td, MINT_LDIND_R4);
1538                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1539                         break;
1540                 case CEE_LDIND_R8:
1541                         CHECK_STACK (&td, 1);
1542                         SIMPLE_OP (td, MINT_LDIND_R8);
1543                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1544                         break;
1545                 case CEE_LDIND_REF:
1546                         CHECK_STACK (&td, 1);
1547                         SIMPLE_OP (td, MINT_LDIND_REF);
1548                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
1549                         break;
1550                 case CEE_STIND_REF:
1551                         CHECK_STACK (&td, 2);
1552                         SIMPLE_OP (td, MINT_STIND_REF);
1553                         td.sp -= 2;
1554                         break;
1555                 case CEE_STIND_I1:
1556                         CHECK_STACK (&td, 2);
1557                         SIMPLE_OP (td, MINT_STIND_I1);
1558                         td.sp -= 2;
1559                         break;
1560                 case CEE_STIND_I2:
1561                         CHECK_STACK (&td, 2);
1562                         SIMPLE_OP (td, MINT_STIND_I2);
1563                         td.sp -= 2;
1564                         break;
1565                 case CEE_STIND_I4:
1566                         CHECK_STACK (&td, 2);
1567                         SIMPLE_OP (td, MINT_STIND_I4);
1568                         td.sp -= 2;
1569                         break;
1570                 case CEE_STIND_I:
1571                         CHECK_STACK (&td, 2);
1572                         SIMPLE_OP (td, MINT_STIND_I);
1573                         td.sp -= 2;
1574                         break;
1575                 case CEE_STIND_I8:
1576                         CHECK_STACK (&td, 2);
1577                         SIMPLE_OP (td, MINT_STIND_I8);
1578                         td.sp -= 2;
1579                         break;
1580                 case CEE_STIND_R4:
1581                         CHECK_STACK (&td, 2);
1582                         SIMPLE_OP (td, MINT_STIND_R4);
1583                         td.sp -= 2;
1584                         break;
1585                 case CEE_STIND_R8:
1586                         CHECK_STACK (&td, 2);
1587                         SIMPLE_OP (td, MINT_STIND_R8);
1588                         td.sp -= 2;
1589                         break;
1590                 case CEE_ADD:
1591                         binary_arith_op(&td, MINT_ADD_I4);
1592                         ++td.ip;
1593                         break;
1594                 case CEE_SUB:
1595                         binary_arith_op(&td, MINT_SUB_I4);
1596                         ++td.ip;
1597                         break;
1598                 case CEE_MUL:
1599                         binary_arith_op(&td, MINT_MUL_I4);
1600                         ++td.ip;
1601                         break;
1602                 case CEE_DIV:
1603                         binary_arith_op(&td, MINT_DIV_I4);
1604                         ++td.ip;
1605                         break;
1606                 case CEE_DIV_UN:
1607                         binary_arith_op(&td, MINT_DIV_UN_I4);
1608                         ++td.ip;
1609                         break;
1610                 case CEE_REM:
1611                         binary_arith_op (&td, MINT_REM_I4);
1612                         ++td.ip;
1613                         break;
1614                 case CEE_REM_UN:
1615                         binary_arith_op (&td, MINT_REM_UN_I4);
1616                         ++td.ip;
1617                         break;
1618                 case CEE_AND:
1619                         binary_arith_op (&td, MINT_AND_I4);
1620                         ++td.ip;
1621                         break;
1622                 case CEE_OR:
1623                         binary_arith_op (&td, MINT_OR_I4);
1624                         ++td.ip;
1625                         break;
1626                 case CEE_XOR:
1627                         binary_arith_op (&td, MINT_XOR_I4);
1628                         ++td.ip;
1629                         break;
1630                 case CEE_SHL:
1631                         shift_op (&td, MINT_SHL_I4);
1632                         ++td.ip;
1633                         break;
1634                 case CEE_SHR:
1635                         shift_op (&td, MINT_SHR_I4);
1636                         ++td.ip;
1637                         break;
1638                 case CEE_SHR_UN:
1639                         shift_op (&td, MINT_SHR_UN_I4);
1640                         ++td.ip;
1641                         break;
1642                 case CEE_NEG:
1643                         unary_arith_op (&td, MINT_NEG_I4);
1644                         ++td.ip;
1645                         break;
1646                 case CEE_NOT:
1647                         unary_arith_op (&td, MINT_NOT_I4);
1648                         ++td.ip;
1649                         break;
1650                 case CEE_CONV_U1:
1651                         CHECK_STACK (&td, 1);
1652                         switch (td.sp [-1].type) {
1653                         case STACK_TYPE_R8:
1654                                 ADD_CODE(&td, MINT_CONV_U1_R8);
1655                                 break;
1656                         case STACK_TYPE_I4:
1657                                 ADD_CODE(&td, MINT_CONV_U1_I4);
1658                                 break;
1659                         case STACK_TYPE_I8:
1660                                 ADD_CODE(&td, MINT_CONV_U1_I8);
1661                                 break;
1662                         default:
1663                                 g_assert_not_reached ();
1664                         }
1665                         ++td.ip;
1666                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1667                         break;
1668                 case CEE_CONV_I1:
1669                         CHECK_STACK (&td, 1);
1670                         switch (td.sp [-1].type) {
1671                         case STACK_TYPE_R8:
1672                                 ADD_CODE(&td, MINT_CONV_I1_R8);
1673                                 break;
1674                         case STACK_TYPE_I4:
1675                                 ADD_CODE(&td, MINT_CONV_I1_I4);
1676                                 break;
1677                         case STACK_TYPE_I8:
1678                                 ADD_CODE(&td, MINT_CONV_I1_I8);
1679                                 break;
1680                         default:
1681                                 g_assert_not_reached ();
1682                         }
1683                         ++td.ip;
1684                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1685                         break;
1686                 case CEE_CONV_U2:
1687                         CHECK_STACK (&td, 1);
1688                         switch (td.sp [-1].type) {
1689                         case STACK_TYPE_R8:
1690                                 ADD_CODE(&td, MINT_CONV_U2_R8);
1691                                 break;
1692                         case STACK_TYPE_I4:
1693                                 ADD_CODE(&td, MINT_CONV_U2_I4);
1694                                 break;
1695                         case STACK_TYPE_I8:
1696                                 ADD_CODE(&td, MINT_CONV_U2_I8);
1697                                 break;
1698                         default:
1699                                 g_assert_not_reached ();
1700                         }
1701                         ++td.ip;
1702                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1703                         break;
1704                 case CEE_CONV_I2:
1705                         CHECK_STACK (&td, 1);
1706                         switch (td.sp [-1].type) {
1707                         case STACK_TYPE_R8:
1708                                 ADD_CODE(&td, MINT_CONV_I2_R8);
1709                                 break;
1710                         case STACK_TYPE_I4:
1711                                 ADD_CODE(&td, MINT_CONV_I2_I4);
1712                                 break;
1713                         case STACK_TYPE_I8:
1714                                 ADD_CODE(&td, MINT_CONV_I2_I8);
1715                                 break;
1716                         default:
1717                                 g_assert_not_reached ();
1718                         }
1719                         ++td.ip;
1720                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1721                         break;
1722                 case CEE_CONV_U:
1723                         CHECK_STACK (&td, 1);
1724                         switch (td.sp [-1].type) {
1725                         case STACK_TYPE_R8:
1726 #if SIZEOF_VOID_P == 4
1727                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1728 #else
1729                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1730 #endif
1731                                 break;
1732                         case STACK_TYPE_I4:
1733 #if SIZEOF_VOID_P == 8
1734                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1735 #endif
1736                                 break;
1737                         case STACK_TYPE_I8:
1738 #if SIZEOF_VOID_P == 4
1739                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1740 #endif
1741                                 break;
1742                         case STACK_TYPE_MP:
1743                                 break;
1744                         default:
1745                                 g_assert_not_reached ();
1746                         }
1747                         ++td.ip;
1748                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1749                         break;
1750                 case CEE_CONV_I:
1751                         CHECK_STACK (&td, 1);
1752                         switch (td.sp [-1].type) {
1753                         case STACK_TYPE_R8:
1754 #if SIZEOF_VOID_P == 8
1755                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1756 #else
1757                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1758 #endif
1759                                 break;
1760                         case STACK_TYPE_I4:
1761 #if SIZEOF_VOID_P == 8
1762                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1763 #endif
1764                                 break;
1765                         case STACK_TYPE_O:
1766                                 break;
1767                         case STACK_TYPE_MP:
1768                                 break;
1769                         case STACK_TYPE_I8:
1770 #if SIZEOF_VOID_P == 4
1771                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1772 #endif
1773                                 break;
1774                         default:
1775                                 g_assert_not_reached ();
1776                         }
1777                         ++td.ip;
1778                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
1779                         break;
1780                 case CEE_CONV_U4:
1781                         CHECK_STACK (&td, 1);
1782                         switch (td.sp [-1].type) {
1783                         case STACK_TYPE_R8:
1784                                 ADD_CODE(&td, MINT_CONV_U4_R8);
1785                                 break;
1786                         case STACK_TYPE_I4:
1787                                 break;
1788                         case STACK_TYPE_I8:
1789                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1790                                 break;
1791                         case STACK_TYPE_MP:
1792 #if SIZEOF_VOID_P == 8
1793                                 ADD_CODE(&td, MINT_CONV_U4_I8);
1794 #endif
1795                                 break;
1796                         default:
1797                                 g_assert_not_reached ();
1798                         }
1799                         ++td.ip;
1800                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1801                         break;
1802                 case CEE_CONV_I4:
1803                         CHECK_STACK (&td, 1);
1804                         switch (td.sp [-1].type) {
1805                         case STACK_TYPE_R8:
1806                                 ADD_CODE(&td, MINT_CONV_I4_R8);
1807                                 break;
1808                         case STACK_TYPE_I4:
1809                                 break;
1810                         case STACK_TYPE_I8:
1811                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1812                                 break;
1813                         case STACK_TYPE_MP:
1814 #if SIZEOF_VOID_P == 8
1815                                 ADD_CODE(&td, MINT_CONV_I4_I8);
1816 #endif
1817                                 break;
1818                         default:
1819                                 g_assert_not_reached ();
1820                         }
1821                         ++td.ip;
1822                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
1823                         break;
1824                 case CEE_CONV_I8:
1825                         CHECK_STACK (&td, 1);
1826                         switch (td.sp [-1].type) {
1827                         case STACK_TYPE_R8:
1828                                 ADD_CODE(&td, MINT_CONV_I8_R8);
1829                                 break;
1830                         case STACK_TYPE_I4:
1831                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1832                                 break;
1833                         case STACK_TYPE_I8:
1834                                 break;
1835                         case STACK_TYPE_MP:
1836 #if SIZEOF_VOID_P == 4
1837                                 ADD_CODE(&td, MINT_CONV_I8_I4);
1838 #endif
1839                                 break;
1840                         default:
1841                                 g_assert_not_reached ();
1842                         }
1843                         ++td.ip;
1844                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1845                         break;
1846                 case CEE_CONV_R4:
1847                         CHECK_STACK (&td, 1);
1848                         switch (td.sp [-1].type) {
1849                         case STACK_TYPE_R8:
1850                                 ADD_CODE(&td, MINT_CONV_R4_R8);
1851                                 break;
1852                         case STACK_TYPE_I8:
1853                                 ADD_CODE(&td, MINT_CONV_R4_I8);
1854                                 break;
1855                         case STACK_TYPE_I4:
1856                                 ADD_CODE(&td, MINT_CONV_R4_I4);
1857                                 break;
1858                         default:
1859                                 g_assert_not_reached ();
1860                         }
1861                         ++td.ip;
1862                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1863                         break;
1864                 case CEE_CONV_R8:
1865                         CHECK_STACK (&td, 1);
1866                         switch (td.sp [-1].type) {
1867                         case STACK_TYPE_I4:
1868                                 ADD_CODE(&td, MINT_CONV_R8_I4);
1869                                 break;
1870                         case STACK_TYPE_I8:
1871                                 ADD_CODE(&td, MINT_CONV_R8_I8);
1872                                 break;
1873                         case STACK_TYPE_R8:
1874                                 break;
1875                         default:
1876                                 g_assert_not_reached ();
1877                         }
1878                         ++td.ip;
1879                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
1880                         break;
1881                 case CEE_CONV_U8:
1882                         CHECK_STACK (&td, 1);
1883                         switch (td.sp [-1].type) {
1884                         case STACK_TYPE_I4:
1885                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1886                                 break;
1887                         case STACK_TYPE_I8:
1888                                 break;
1889                         case STACK_TYPE_R8:
1890                                 ADD_CODE(&td, MINT_CONV_U8_R8);
1891                                 break;
1892                         case STACK_TYPE_MP:
1893 #if SIZEOF_VOID_P == 4
1894                                 ADD_CODE(&td, MINT_CONV_U8_I4);
1895 #endif
1896                                 break;
1897                         default:
1898                                 g_assert_not_reached ();
1899                         }
1900                         ++td.ip;
1901                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
1902                         break;
1903                 case CEE_CPOBJ: {
1904                         CHECK_STACK (&td, 2);
1905
1906                         token = read32 (td.ip + 1);
1907                         klass = mono_class_get_full (image, token, generic_context);
1908
1909                         if (klass->valuetype) {
1910                                 ADD_CODE (&td, MINT_CPOBJ);
1911                                 ADD_CODE (&td, get_data_item_index(&td, klass));
1912                         } else {
1913                                 ADD_CODE (&td, MINT_LDIND_REF);
1914                                 ADD_CODE (&td, MINT_STIND_REF);
1915                         }
1916                         td.ip += 5;
1917                         td.sp -= 2;
1918                         break;
1919                 }
1920                 case CEE_LDOBJ: {
1921                         int size;
1922                         CHECK_STACK (&td, 1);
1923
1924                         token = read32 (td.ip + 1);
1925
1926                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1927                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
1928                         else
1929                                 klass = mono_class_get_full (image, token, generic_context);
1930
1931                         ADD_CODE(&td, MINT_LDOBJ);
1932                         ADD_CODE(&td, get_data_item_index(&td, klass));
1933                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1934                                 size = mono_class_value_size (klass, NULL);
1935                                 PUSH_VT(&td, size);
1936                         }
1937                         td.ip += 5;
1938                         SET_TYPE(td.sp - 1, stack_type[mint_type(&klass->byval_arg)], klass);
1939                         break;
1940                 }
1941                 case CEE_LDSTR: {
1942                         MonoString *s;
1943                         token = mono_metadata_token_index (read32 (td.ip + 1));
1944                         td.ip += 5;
1945                         if (method->wrapper_type != MONO_WRAPPER_NONE) {
1946                                 s = mono_string_new_wrapper(
1947                                         mono_method_get_wrapper_data (method, token));
1948                         }
1949                         else
1950                                 s = mono_ldstr (domain, image, token);
1951                         ADD_CODE(&td, MINT_LDSTR);
1952                         ADD_CODE(&td, get_data_item_index (&td, s));
1953                         PUSH_TYPE(&td, STACK_TYPE_O, mono_defaults.string_class);
1954                         break;
1955                 }
1956                 case CEE_NEWOBJ: {
1957                         MonoMethod *m;
1958                         MonoMethodSignature *csignature;
1959                         guint32 vt_stack_used = 0;
1960                         guint32 vt_res_size = 0;
1961
1962                         td.ip++;
1963                         token = read32 (td.ip);
1964                         td.ip += 4;
1965
1966                         if (method->wrapper_type != MONO_WRAPPER_NONE)
1967                                 m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
1968                         else
1969                                 m = mono_get_method_full (image, token, NULL, generic_context);
1970
1971                         csignature = mono_method_signature (m);
1972                         klass = m->klass;
1973                         td.sp -= csignature->param_count;
1974                         ADD_CODE(&td, MINT_NEWOBJ);
1975                         ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
1976                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
1977
1978                         if (mint_type (&klass->byval_arg) == MINT_TYPE_VT) {
1979                                 vt_res_size = mono_class_value_size (klass, NULL);
1980                                 PUSH_VT (&td, vt_res_size);
1981                         }
1982                         for (i = 0; i < csignature->param_count; ++i) {
1983                                 int mt = mint_type(csignature->params [i]);
1984                                 if (mt == MINT_TYPE_VT) {
1985                                         MonoClass *k = mono_class_from_mono_type (csignature->params [i]);
1986                                         gint32 size = mono_class_value_size (k, NULL);
1987                                         size = (size + 7) & ~7;
1988                                         vt_stack_used += size;
1989                                 }
1990                         }
1991                         if (vt_stack_used != 0 || vt_res_size != 0) {
1992                                 ADD_CODE(&td, MINT_VTRESULT);
1993                                 ADD_CODE(&td, vt_res_size);
1994                                 WRITE32(&td, &vt_stack_used);
1995                                 td.vt_sp -= vt_stack_used;
1996                         }
1997                         PUSH_TYPE (&td, stack_type [mint_type (&klass->byval_arg)], klass);
1998                         break;
1999                 }
2000                 case CEE_CASTCLASS:
2001                         CHECK_STACK (&td, 1);
2002                         token = read32 (td.ip + 1);
2003                         klass = mini_get_class (method, token, generic_context);
2004                         ADD_CODE(&td, MINT_CASTCLASS);
2005                         ADD_CODE(&td, get_data_item_index (&td, klass));
2006                         td.sp [-1].klass = klass;
2007                         td.ip += 5;
2008                         break;
2009                 case CEE_ISINST:
2010                         CHECK_STACK (&td, 1);
2011                         token = read32 (td.ip + 1);
2012                         klass = mini_get_class (method, token, generic_context);
2013                         ADD_CODE(&td, MINT_ISINST);
2014                         ADD_CODE(&td, get_data_item_index (&td, klass));
2015                         td.ip += 5;
2016                         break;
2017                 case CEE_CONV_R_UN:
2018                         switch (td.sp [-1].type) {
2019                         case STACK_TYPE_R8:
2020                                 break;
2021                         case STACK_TYPE_I8:
2022                                 ADD_CODE(&td, MINT_CONV_R_UN_I8);
2023                                 break;
2024                         case STACK_TYPE_I4:
2025                                 ADD_CODE(&td, MINT_CONV_R_UN_I4);
2026                                 break;
2027                         default:
2028                                 g_assert_not_reached ();
2029                         }
2030                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2031                         ++td.ip;
2032                         break;
2033                 case CEE_UNBOX:
2034                         CHECK_STACK (&td, 1);
2035                         token = read32 (td.ip + 1);
2036
2037                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2038                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2039                         else
2040                                 klass = mono_class_get_full (image, token, generic_context);
2041
2042                         if (mono_class_is_nullable (klass)) {
2043                                 g_error ("cee_unbox: implement Nullable");
2044                         }
2045
2046                         ADD_CODE(&td, MINT_UNBOX);
2047                         ADD_CODE(&td, get_data_item_index (&td, klass));
2048                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2049                         td.ip += 5;
2050                         break;
2051                 case CEE_UNBOX_ANY:
2052                         CHECK_STACK (&td, 1);
2053                         token = read32 (td.ip + 1);
2054
2055                         klass = mini_get_class (method, token, generic_context);
2056
2057                         if (mini_type_is_reference (&klass->byval_arg)) {
2058                                 int mt = mint_type (&klass->byval_arg);
2059                                 ADD_CODE (&td, MINT_CASTCLASS);
2060                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2061                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2062                                 td.ip += 5;
2063                         } else if (mono_class_is_nullable (klass)) {
2064                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Unbox", 1);
2065                                 /* td.ip is incremented by interp_transform_call */
2066                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2067                         } else {
2068                                 int mt = mint_type (&klass->byval_arg);
2069                                 ADD_CODE (&td, MINT_UNBOX);
2070                                 ADD_CODE (&td, get_data_item_index (&td, klass));
2071
2072                                 ADD_CODE (&td, MINT_LDOBJ);
2073                                 ADD_CODE (&td, get_data_item_index(&td, klass));
2074                                 SET_TYPE (td.sp - 1, stack_type [mt], klass);
2075
2076                                 if (mt == MINT_TYPE_VT) {
2077                                         int size = mono_class_value_size (klass, NULL);
2078                                         PUSH_VT (&td, size);
2079                                 }
2080                                 td.ip += 5;
2081                         }
2082
2083                         break;
2084                 case CEE_THROW:
2085                         CHECK_STACK (&td, 1);
2086                         SIMPLE_OP (td, MINT_THROW);
2087                         --td.sp;
2088                         generating_code = 0;
2089                         break;
2090                 case CEE_LDFLDA:
2091                         CHECK_STACK (&td, 1);
2092                         token = read32 (td.ip + 1);
2093                         field = interp_field_from_token (method, token, &klass, generic_context);
2094                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2095                         mono_class_init (klass);
2096                         if (is_static) {
2097                                 ADD_CODE (&td, MINT_POP);
2098                                 ADD_CODE (&td, 0);
2099                                 ADD_CODE (&td, MINT_LDSFLDA);
2100                                 ADD_CODE (&td, get_data_item_index (&td, field));
2101                         } else {
2102                                 if ((td.sp - 1)->type == STACK_TYPE_O) {
2103                                         ADD_CODE (&td, MINT_LDFLDA);
2104                                 } else {
2105                                         g_assert ((td.sp -1)->type == STACK_TYPE_MP);
2106                                         ADD_CODE (&td, MINT_LDFLDA_UNSAFE);
2107                                 }
2108                                 ADD_CODE (&td, klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
2109                         }
2110                         td.ip += 5;
2111                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2112                         break;
2113                 case CEE_LDFLD: {
2114                         CHECK_STACK (&td, 1);
2115                         token = read32 (td.ip + 1);
2116                         field = interp_field_from_token (method, token, &klass, generic_context);
2117                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2118                         mono_class_init (klass);
2119
2120                         MonoClass *field_klass = mono_class_from_mono_type (field->type);
2121                         mt = mint_type (&field_klass->byval_arg);
2122                         if (klass->marshalbyref) {
2123                                 g_assert (!is_static);
2124                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDRMFLD_VT :  MINT_LDRMFLD);
2125                                 ADD_CODE(&td, get_data_item_index (&td, field));
2126                         } else  {
2127                                 if (is_static) {
2128                                         ADD_CODE (&td, MINT_POP);
2129                                         ADD_CODE (&td, 0);
2130                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2131                                         ADD_CODE (&td, get_data_item_index (&td, field));
2132                                 } else {
2133                                         ADD_CODE (&td, MINT_LDFLD_I1 + mt - MINT_TYPE_I1);
2134                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2135                                 }
2136                         }
2137                         if (mt == MINT_TYPE_VT) {
2138                                 int size = mono_class_value_size (field_klass, NULL);
2139                                 PUSH_VT(&td, size);
2140                                 WRITE32(&td, &size);
2141                         }
2142                         if (td.sp [-1].type == STACK_TYPE_VT) {
2143                                 int size = mono_class_value_size (klass, NULL);
2144                                 size = (size + 7) & ~7;
2145                                 td.vt_sp -= size;
2146                                 ADD_CODE (&td, MINT_VTRESULT);
2147                                 ADD_CODE (&td, 0);
2148                                 WRITE32 (&td, &size);
2149                         }
2150                         td.ip += 5;
2151                         SET_TYPE(td.sp - 1, stack_type [mt], field_klass);
2152                         break;
2153                 }
2154                 case CEE_STFLD: {
2155                         CHECK_STACK (&td, 2);
2156                         token = read32 (td.ip + 1);
2157                         field = interp_field_from_token (method, token, &klass, generic_context);
2158                         gboolean is_static = !!(field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2159                         mono_class_init (klass);
2160                         mt = mint_type(field->type);
2161
2162                         if (klass->marshalbyref) {
2163                                 g_assert (!is_static);
2164                                 ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STRMFLD_VT : MINT_STRMFLD);
2165                                 ADD_CODE(&td, get_data_item_index (&td, field));
2166                         } else  {
2167                                 if (is_static) {
2168                                         ADD_CODE (&td, MINT_POP);
2169                                         ADD_CODE (&td, 1);
2170                                         ADD_CODE (&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2171                                         ADD_CODE (&td, get_data_item_index (&td, field));
2172                                 } else {
2173                                         ADD_CODE (&td, MINT_STFLD_I1 + mt - MINT_TYPE_I1);
2174                                         ADD_CODE (&td, klass->valuetype ? field->offset - sizeof(MonoObject) : field->offset);
2175                                 }
2176                         }
2177                         if (mt == MINT_TYPE_VT) {
2178                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2179                                 int size = mono_class_value_size (klass, NULL);
2180                                 POP_VT(&td, size);
2181                                 WRITE32(&td, &size);
2182                         }
2183                         td.ip += 5;
2184                         td.sp -= 2;
2185                         break;
2186                 }
2187                 case CEE_LDSFLDA:
2188                         token = read32 (td.ip + 1);
2189                         field = interp_field_from_token (method, token, &klass, generic_context);
2190                         ADD_CODE(&td, MINT_LDSFLDA);
2191                         ADD_CODE(&td, get_data_item_index (&td, field));
2192                         td.ip += 5;
2193                         PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
2194                         break;
2195                 case CEE_LDSFLD:
2196                         token = read32 (td.ip + 1);
2197                         field = interp_field_from_token (method, token, &klass, generic_context);
2198                         mt = mint_type(field->type);
2199                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_LDSFLD_VT : MINT_LDSFLD);
2200                         ADD_CODE(&td, get_data_item_index (&td, field));
2201                         klass = NULL;
2202                         if (mt == MINT_TYPE_VT) {
2203                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2204                                 int size = mono_class_value_size (klass, NULL);
2205                                 PUSH_VT(&td, size);
2206                                 WRITE32(&td, &size);
2207                                 klass = field->type->data.klass;
2208                         } else {
2209                                 if (mt == MINT_TYPE_O)
2210                                         klass = mono_class_from_mono_type (field->type);
2211                         }
2212                         td.ip += 5;
2213                         PUSH_TYPE(&td, stack_type [mt], klass);
2214                         break;
2215                 case CEE_STSFLD:
2216                         CHECK_STACK (&td, 1);
2217                         token = read32 (td.ip + 1);
2218                         field = interp_field_from_token (method, token, &klass, generic_context);
2219                         mt = mint_type(field->type);
2220                         ADD_CODE(&td, mt == MINT_TYPE_VT ? MINT_STSFLD_VT : MINT_STSFLD);
2221                         ADD_CODE(&td, get_data_item_index (&td, field));
2222                         if (mt == MINT_TYPE_VT) {
2223                                 MonoClass *klass = mono_class_from_mono_type (field->type);
2224                                 int size = mono_class_value_size (klass, NULL);
2225                                 POP_VT (&td, size);
2226                                 WRITE32 (&td, &size);
2227                         }
2228                         td.ip += 5;
2229                         --td.sp;
2230                         break;
2231                 case CEE_STOBJ: {
2232                         int size;
2233                         token = read32 (td.ip + 1);
2234
2235                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2236                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2237                         else
2238                                 klass = mini_get_class (method, token, generic_context);
2239
2240                         ADD_CODE(&td, td.sp [-1].type == STACK_TYPE_VT ? MINT_STOBJ_VT : MINT_STOBJ);
2241                         ADD_CODE(&td, get_data_item_index (&td, klass));
2242                         if (td.sp [-1].type == STACK_TYPE_VT) {
2243                                 size = mono_class_value_size (klass, NULL);
2244                                 size = (size + 7) & ~7;
2245                                 td.vt_sp -= size;
2246                         }
2247                         td.ip += 5;
2248                         td.sp -= 2;
2249                         break;
2250                 }
2251                 case CEE_CONV_OVF_I_UN:
2252                 case CEE_CONV_OVF_U_UN:
2253                         CHECK_STACK (&td, 1);
2254                         switch (td.sp [-1].type) {
2255                         case STACK_TYPE_R8:
2256 #if SIZEOF_VOID_P == 8
2257                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2258 #else
2259                                 ADD_CODE(&td, MINT_CONV_OVF_I4_UN_R8);
2260 #endif
2261                                 break;
2262                         case STACK_TYPE_I8:
2263 #if SIZEOF_VOID_P == 4
2264                                 ADD_CODE (&td, MINT_CONV_OVF_I4_UN_I8);
2265 #endif
2266                                 break;
2267                         case STACK_TYPE_I4:
2268 #if SIZEOF_VOID_P == 8
2269                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2270 #elif SIZEOF_VOID_P == 4
2271                                 if (*td.ip == CEE_CONV_OVF_I_UN)
2272                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2273 #endif
2274                                 break;
2275                         default:
2276                                 g_assert_not_reached ();
2277                                 break;
2278                         }
2279                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2280                         ++td.ip;
2281                         break;
2282                 case CEE_CONV_OVF_I8_UN:
2283                 case CEE_CONV_OVF_U8_UN:
2284                         CHECK_STACK (&td, 1);
2285                         switch (td.sp [-1].type) {
2286                         case STACK_TYPE_R8:
2287                                 ADD_CODE(&td, MINT_CONV_OVF_I8_UN_R8);
2288                                 break;
2289                         case STACK_TYPE_I8:
2290                                 if (*td.ip == CEE_CONV_OVF_I8_UN)
2291                                         ADD_CODE (&td, MINT_CONV_OVF_I8_U8);
2292                                 break;
2293                         case STACK_TYPE_I4:
2294                                 ADD_CODE(&td, MINT_CONV_I8_U4);
2295                                 break;
2296                         default:
2297                                 g_assert_not_reached ();
2298                                 break;
2299                         }
2300                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2301                         ++td.ip;
2302                         break;
2303                 case CEE_BOX: {
2304                         int size;
2305                         CHECK_STACK (&td, 1);
2306                         token = read32 (td.ip + 1);
2307                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2308                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2309                         else
2310                                 klass = mini_get_class (method, token, generic_context);
2311
2312                         if (mono_class_is_nullable (klass)) {
2313                                 MonoMethod *target_method = mono_class_get_method_from_name (klass, "Box", 1);
2314                                 /* td.ip is incremented by interp_transform_call */
2315                                 interp_transform_call (&td, method, target_method, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2316                         } else if (!klass->valuetype) {
2317                                 /* already boxed, do nothing. */
2318                                 td.ip += 5;
2319                         } else {
2320                                 if (mint_type (&klass->byval_arg) == MINT_TYPE_VT && !klass->enumtype) {
2321                                         size = mono_class_value_size (klass, NULL);
2322                                         size = (size + 7) & ~7;
2323                                         td.vt_sp -= size;
2324                                 }
2325                                 ADD_CODE(&td, MINT_BOX);
2326                                 ADD_CODE(&td, get_data_item_index (&td, klass));
2327                                 ADD_CODE (&td, 0);
2328                                 SET_TYPE(td.sp - 1, STACK_TYPE_O, klass);
2329                                 td.ip += 5;
2330                         }
2331
2332                         break;
2333                 }
2334                 case CEE_NEWARR: {
2335                         CHECK_STACK (&td, 1);
2336                         token = read32 (td.ip + 1);
2337
2338                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2339                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
2340                         else
2341                                 klass = mini_get_class (method, token, generic_context);
2342
2343                         unsigned char lentype = (td.sp - 1)->type;
2344                         if (lentype == STACK_TYPE_I8) {
2345                                 /* mimic mini behaviour */
2346                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I8);
2347                         } else {
2348                                 g_assert (lentype == STACK_TYPE_I4);
2349                                 ADD_CODE (&td, MINT_CONV_OVF_U4_I4);
2350                         }
2351                         SET_SIMPLE_TYPE (td.sp - 1, STACK_TYPE_I4);
2352                         ADD_CODE (&td, MINT_NEWARR);
2353                         ADD_CODE (&td, get_data_item_index (&td, klass));
2354                         SET_TYPE (td.sp - 1, STACK_TYPE_O, klass);
2355                         td.ip += 5;
2356                         break;
2357                 }
2358                 case CEE_LDLEN:
2359                         CHECK_STACK (&td, 1);
2360                         SIMPLE_OP (td, MINT_LDLEN);
2361                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2362                         break;
2363                 case CEE_LDELEMA:
2364                         CHECK_STACK (&td, 2);
2365                         ENSURE_I4 (&td, 1);
2366                         token = read32 (td.ip + 1);
2367
2368                         if (method->wrapper_type != MONO_WRAPPER_NONE)
2369                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token);
2370                         else
2371                                 klass = mini_get_class (method, token, generic_context);
2372
2373                         if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
2374                                 ADD_CODE (&td, MINT_LDELEMA_TC);
2375                         } else {
2376                                 ADD_CODE (&td, MINT_LDELEMA);
2377                         }
2378                         ADD_CODE (&td, get_data_item_index (&td, klass));
2379                         /* according to spec, ldelema bytecode is only used for 1-dim arrays */
2380                         ADD_CODE (&td, 2);
2381                         readonly = FALSE;
2382
2383                         td.ip += 5;
2384                         --td.sp;
2385                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2386                         break;
2387                 case CEE_LDELEM_I1:
2388                         CHECK_STACK (&td, 2);
2389                         ENSURE_I4 (&td, 1);
2390                         SIMPLE_OP (td, MINT_LDELEM_I1);
2391                         --td.sp;
2392                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2393                         break;
2394                 case CEE_LDELEM_U1:
2395                         CHECK_STACK (&td, 2);
2396                         ENSURE_I4 (&td, 1);
2397                         SIMPLE_OP (td, MINT_LDELEM_U1);
2398                         --td.sp;
2399                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2400                         break;
2401                 case CEE_LDELEM_I2:
2402                         CHECK_STACK (&td, 2);
2403                         ENSURE_I4 (&td, 1);
2404                         SIMPLE_OP (td, MINT_LDELEM_I2);
2405                         --td.sp;
2406                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2407                         break;
2408                 case CEE_LDELEM_U2:
2409                         CHECK_STACK (&td, 2);
2410                         ENSURE_I4 (&td, 1);
2411                         SIMPLE_OP (td, MINT_LDELEM_U2);
2412                         --td.sp;
2413                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2414                         break;
2415                 case CEE_LDELEM_I4:
2416                         CHECK_STACK (&td, 2);
2417                         ENSURE_I4 (&td, 1);
2418                         SIMPLE_OP (td, MINT_LDELEM_I4);
2419                         --td.sp;
2420                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2421                         break;
2422                 case CEE_LDELEM_U4:
2423                         CHECK_STACK (&td, 2);
2424                         ENSURE_I4 (&td, 1);
2425                         SIMPLE_OP (td, MINT_LDELEM_U4);
2426                         --td.sp;
2427                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2428                         break;
2429                 case CEE_LDELEM_I8:
2430                         CHECK_STACK (&td, 2);
2431                         ENSURE_I4 (&td, 1);
2432                         SIMPLE_OP (td, MINT_LDELEM_I8);
2433                         --td.sp;
2434                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2435                         break;
2436                 case CEE_LDELEM_I:
2437                         CHECK_STACK (&td, 2);
2438                         ENSURE_I4 (&td, 1);
2439                         SIMPLE_OP (td, MINT_LDELEM_I);
2440                         --td.sp;
2441                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2442                         break;
2443                 case CEE_LDELEM_R4:
2444                         CHECK_STACK (&td, 2);
2445                         ENSURE_I4 (&td, 1);
2446                         SIMPLE_OP (td, MINT_LDELEM_R4);
2447                         --td.sp;
2448                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2449                         break;
2450                 case CEE_LDELEM_R8:
2451                         CHECK_STACK (&td, 2);
2452                         ENSURE_I4 (&td, 1);
2453                         SIMPLE_OP (td, MINT_LDELEM_R8);
2454                         --td.sp;
2455                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2456                         break;
2457                 case CEE_LDELEM_REF:
2458                         CHECK_STACK (&td, 2);
2459                         ENSURE_I4 (&td, 1);
2460                         SIMPLE_OP (td, MINT_LDELEM_REF);
2461                         --td.sp;
2462                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2463                         break;
2464                 case CEE_LDELEM:
2465                         CHECK_STACK (&td, 2);
2466                         token = read32 (td.ip + 1);
2467                         klass = mini_get_class (method, token, generic_context);
2468                         switch (mint_type (&klass->byval_arg)) {
2469                                 case MINT_TYPE_I1:
2470                                         ENSURE_I4 (&td, 1);
2471                                         SIMPLE_OP (td, MINT_LDELEM_I1);
2472                                         --td.sp;
2473                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2474                                         break;
2475                                 case MINT_TYPE_U1:
2476                                         ENSURE_I4 (&td, 1);
2477                                         SIMPLE_OP (td, MINT_LDELEM_U1);
2478                                         --td.sp;
2479                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2480                                         break;
2481                                 case MINT_TYPE_U2:
2482                                         ENSURE_I4 (&td, 1);
2483                                         SIMPLE_OP (td, MINT_LDELEM_U2);
2484                                         --td.sp;
2485                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2486                                         break;
2487                                 case MINT_TYPE_I2:
2488                                         ENSURE_I4 (&td, 1);
2489                                         SIMPLE_OP (td, MINT_LDELEM_I2);
2490                                         --td.sp;
2491                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2492                                         break;
2493                                 case MINT_TYPE_I4:
2494                                         ENSURE_I4 (&td, 1);
2495                                         SIMPLE_OP (td, MINT_LDELEM_I4);
2496                                         --td.sp;
2497                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2498                                         break;
2499                                 case MINT_TYPE_I8:
2500                                         ENSURE_I4 (&td, 1);
2501                                         SIMPLE_OP (td, MINT_LDELEM_I8);
2502                                         --td.sp;
2503                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2504                                         break;
2505                                 case MINT_TYPE_R4:
2506                                         ENSURE_I4 (&td, 1);
2507                                         SIMPLE_OP (td, MINT_LDELEM_R4);
2508                                         --td.sp;
2509                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2510                                         break;
2511                                 case MINT_TYPE_R8:
2512                                         ENSURE_I4 (&td, 1);
2513                                         SIMPLE_OP (td, MINT_LDELEM_R8);
2514                                         --td.sp;
2515                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_R8);
2516                                         break;
2517                                 case MINT_TYPE_O:
2518                                         ENSURE_I4 (&td, 1);
2519                                         SIMPLE_OP (td, MINT_LDELEM_REF);
2520                                         --td.sp;
2521                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_O);
2522                                         break;
2523                                 case MINT_TYPE_VT: {
2524                                         int size = mono_class_value_size (klass, NULL);
2525                                         ENSURE_I4 (&td, 1);
2526                                         SIMPLE_OP (td, MINT_LDELEM_VT);
2527                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2528                                         WRITE32 (&td, &size);
2529                                         --td.sp;
2530                                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_VT);
2531                                         PUSH_VT (&td, size);
2532                                         break;
2533                                 }
2534                                 default: {
2535                                         GString *res = g_string_new ("");
2536                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2537                                         g_print ("LDELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2538                                         g_string_free (res, TRUE);
2539                                         g_assert (0);
2540                                         break;
2541                                 }
2542                         }
2543                         td.ip += 4;
2544                         break;
2545                 case CEE_STELEM_I:
2546                         CHECK_STACK (&td, 3);
2547                         ENSURE_I4 (&td, 2);
2548                         SIMPLE_OP (td, MINT_STELEM_I);
2549                         td.sp -= 3;
2550                         break;
2551                 case CEE_STELEM_I1:
2552                         CHECK_STACK (&td, 3);
2553                         ENSURE_I4 (&td, 2);
2554                         SIMPLE_OP (td, MINT_STELEM_I1);
2555                         td.sp -= 3;
2556                         break;
2557                 case CEE_STELEM_I2:
2558                         CHECK_STACK (&td, 3);
2559                         ENSURE_I4 (&td, 2);
2560                         SIMPLE_OP (td, MINT_STELEM_I2);
2561                         td.sp -= 3;
2562                         break;
2563                 case CEE_STELEM_I4:
2564                         CHECK_STACK (&td, 3);
2565                         ENSURE_I4 (&td, 2);
2566                         SIMPLE_OP (td, MINT_STELEM_I4);
2567                         td.sp -= 3;
2568                         break;
2569                 case CEE_STELEM_I8:
2570                         CHECK_STACK (&td, 3);
2571                         ENSURE_I4 (&td, 2);
2572                         SIMPLE_OP (td, MINT_STELEM_I8);
2573                         td.sp -= 3;
2574                         break;
2575                 case CEE_STELEM_R4:
2576                         CHECK_STACK (&td, 3);
2577                         ENSURE_I4 (&td, 2);
2578                         SIMPLE_OP (td, MINT_STELEM_R4);
2579                         td.sp -= 3;
2580                         break;
2581                 case CEE_STELEM_R8:
2582                         CHECK_STACK (&td, 3);
2583                         ENSURE_I4 (&td, 2);
2584                         SIMPLE_OP (td, MINT_STELEM_R8);
2585                         td.sp -= 3;
2586                         break;
2587                 case CEE_STELEM_REF:
2588                         CHECK_STACK (&td, 3);
2589                         ENSURE_I4 (&td, 2);
2590                         SIMPLE_OP (td, MINT_STELEM_REF);
2591                         td.sp -= 3;
2592                         break;
2593                 case CEE_STELEM:
2594                         CHECK_STACK (&td, 3);
2595                         ENSURE_I4 (&td, 2);
2596                         token = read32 (td.ip + 1);
2597                         klass = mini_get_class (method, token, generic_context);
2598                         switch (mint_type (&klass->byval_arg)) {
2599                                 case MINT_TYPE_U1:
2600                                         SIMPLE_OP (td, MINT_STELEM_U1);
2601                                         break;
2602                                 case MINT_TYPE_U2:
2603                                         SIMPLE_OP (td, MINT_STELEM_U2);
2604                                         break;
2605                                 case MINT_TYPE_I4:
2606                                         SIMPLE_OP (td, MINT_STELEM_I4);
2607                                         break;
2608                                 case MINT_TYPE_I8:
2609                                         SIMPLE_OP (td, MINT_STELEM_I8);
2610                                         break;
2611                                 case MINT_TYPE_O:
2612                                         SIMPLE_OP (td, MINT_STELEM_REF);
2613                                         break;
2614                                 case MINT_TYPE_VT: {
2615                                         int size = mono_class_value_size (klass, NULL);
2616                                         SIMPLE_OP (td, MINT_STELEM_VT);
2617                                         ADD_CODE (&td, get_data_item_index (&td, klass));
2618                                         WRITE32 (&td, &size);
2619                                         POP_VT (&td, size);
2620                                         break;
2621                                 }
2622                                 default: {
2623                                         GString *res = g_string_new ("");
2624                                         mono_type_get_desc (res, &klass->byval_arg, TRUE);
2625                                         g_print ("STELEM: %s -> %d (%s)\n", klass->name, mint_type (&klass->byval_arg), res->str);
2626                                         g_string_free (res, TRUE);
2627                                         g_assert (0);
2628                                         break;
2629                                 }
2630                         }
2631                         td.ip += 4;
2632                         td.sp -= 3;
2633                         break;
2634 #if 0
2635                 case CEE_CONV_OVF_U1:
2636
2637                 case CEE_CONV_OVF_I8:
2638
2639 #if SIZEOF_VOID_P == 8
2640                 case CEE_CONV_OVF_U:
2641 #endif
2642 #endif
2643                 case CEE_CKFINITE:
2644                         CHECK_STACK (&td, 1);
2645                         SIMPLE_OP (td, MINT_CKFINITE);
2646                         break;
2647                 case CEE_MKREFANY:
2648                         CHECK_STACK (&td, 1);
2649                         ENSURE_I4 (&td, 2);
2650                         token = read32 (td.ip + 1);
2651                         klass = mini_get_class (method, token, generic_context);
2652
2653                         ADD_CODE (&td, MINT_MKREFANY);
2654                         ADD_CODE (&td, get_data_item_index (&td, klass));
2655
2656                         td.ip += 5;
2657                         PUSH_VT (&td, sizeof (MonoTypedRef));
2658                         SET_TYPE(td.sp - 1, STACK_TYPE_VT, mono_defaults.typed_reference_class);
2659                         break;
2660                 case CEE_REFANYVAL: {
2661                         CHECK_STACK (&td, 1);
2662                         ENSURE_I4 (&td, 2);
2663                         token = read32 (td.ip + 1);
2664
2665                         ADD_CODE (&td, MINT_REFANYVAL);
2666
2667                         POP_VT (&td, sizeof (MonoTypedRef));
2668                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
2669
2670                         td.ip += 5;
2671                         break;
2672                 }
2673                 case CEE_CONV_OVF_I1:
2674                 case CEE_CONV_OVF_I1_UN:
2675                         CHECK_STACK (&td, 1);
2676                         switch (td.sp [-1].type) {
2677                         case STACK_TYPE_R8:
2678                                 ADD_CODE(&td, MINT_CONV_OVF_I1_R8);
2679                                 break;
2680                         case STACK_TYPE_I4:
2681                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I4);
2682                                 break;
2683                         case STACK_TYPE_I8:
2684                                 ADD_CODE(&td, MINT_CONV_OVF_I1_I8);
2685                                 break;
2686                         default:
2687                                 g_assert_not_reached ();
2688                         }
2689                         ++td.ip;
2690                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2691                         break;
2692                 case CEE_CONV_OVF_U1:
2693                 case CEE_CONV_OVF_U1_UN:
2694                         CHECK_STACK (&td, 1);
2695                         switch (td.sp [-1].type) {
2696                         case STACK_TYPE_R8:
2697                                 ADD_CODE(&td, MINT_CONV_OVF_U1_R8);
2698                                 break;
2699                         case STACK_TYPE_I4:
2700                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I4);
2701                                 break;
2702                         case STACK_TYPE_I8:
2703                                 ADD_CODE(&td, MINT_CONV_OVF_U1_I8);
2704                                 break;
2705                         default:
2706                                 g_assert_not_reached ();
2707                         }
2708                         ++td.ip;
2709                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2710                         break;
2711                 case CEE_CONV_OVF_I2:
2712                 case CEE_CONV_OVF_I2_UN:
2713                         CHECK_STACK (&td, 1);
2714                         switch (td.sp [-1].type) {
2715                         case STACK_TYPE_R8:
2716                                 ADD_CODE(&td, MINT_CONV_OVF_I2_R8);
2717                                 break;
2718                         case STACK_TYPE_I4:
2719                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I4);
2720                                 break;
2721                         case STACK_TYPE_I8:
2722                                 ADD_CODE(&td, MINT_CONV_OVF_I2_I8);
2723                                 break;
2724                         default:
2725                                 g_assert_not_reached ();
2726                         }
2727                         ++td.ip;
2728                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2729                         break;
2730                 case CEE_CONV_OVF_U2_UN:
2731                 case CEE_CONV_OVF_U2:
2732                         CHECK_STACK (&td, 1);
2733                         switch (td.sp [-1].type) {
2734                         case STACK_TYPE_R8:
2735                                 ADD_CODE(&td, MINT_CONV_OVF_U2_R8);
2736                                 break;
2737                         case STACK_TYPE_I4:
2738                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I4);
2739                                 break;
2740                         case STACK_TYPE_I8:
2741                                 ADD_CODE(&td, MINT_CONV_OVF_U2_I8);
2742                                 break;
2743                         default:
2744                                 g_assert_not_reached ();
2745                         }
2746                         ++td.ip;
2747                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2748                         break;
2749 #if SIZEOF_VOID_P == 4
2750                 case CEE_CONV_OVF_I:
2751 #endif
2752                 case CEE_CONV_OVF_I4:
2753                 case CEE_CONV_OVF_I4_UN:
2754                         CHECK_STACK (&td, 1);
2755                         switch (td.sp [-1].type) {
2756                         case STACK_TYPE_R8:
2757                                 ADD_CODE(&td, MINT_CONV_OVF_I4_R8);
2758                                 break;
2759                         case STACK_TYPE_I4:
2760                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2761                                         ADD_CODE(&td, MINT_CONV_OVF_I4_U4);
2762                                 break;
2763                         case STACK_TYPE_I8:
2764                                 if (*td.ip == CEE_CONV_OVF_I4_UN)
2765                                         ADD_CODE (&td, MINT_CONV_OVF_I4_U8);
2766                                 else
2767                                         ADD_CODE (&td, MINT_CONV_OVF_I4_I8);
2768                                 break;
2769                         default:
2770                                 g_assert_not_reached ();
2771                         }
2772                         ++td.ip;
2773                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2774                         break;
2775 #if SIZEOF_VOID_P == 4
2776                 case CEE_CONV_OVF_U:
2777 #endif
2778                 case CEE_CONV_OVF_U4:
2779                 case CEE_CONV_OVF_U4_UN:
2780                         CHECK_STACK (&td, 1);
2781                         switch (td.sp [-1].type) {
2782                         case STACK_TYPE_R8:
2783                                 ADD_CODE(&td, MINT_CONV_OVF_U4_R8);
2784                                 break;
2785                         case STACK_TYPE_I4:
2786                                 if (*td.ip != CEE_CONV_OVF_U4_UN)
2787                                         ADD_CODE(&td, MINT_CONV_OVF_U4_I4);
2788                                 break;
2789                         case STACK_TYPE_I8:
2790                                 ADD_CODE(&td, MINT_CONV_OVF_U4_I8);
2791                                 break;
2792                         default:
2793                                 g_assert_not_reached ();
2794                         }
2795                         ++td.ip;
2796                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
2797                         break;
2798 #if SIZEOF_VOID_P == 8
2799                 case CEE_CONV_OVF_I:
2800 #endif
2801                 case CEE_CONV_OVF_I8:
2802                         CHECK_STACK (&td, 1);
2803                         switch (td.sp [-1].type) {
2804                         case STACK_TYPE_R8:
2805                                 ADD_CODE(&td, MINT_CONV_OVF_I8_R8);
2806                                 break;
2807                         case STACK_TYPE_I4:
2808                                 ADD_CODE(&td, MINT_CONV_I8_I4);
2809                                 break;
2810                         case STACK_TYPE_I8:
2811                                 break;
2812                         default:
2813                                 g_assert_not_reached ();
2814                         }
2815                         ++td.ip;
2816                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2817                         break;
2818 #if SIZEOF_VOID_P == 8
2819                 case CEE_CONV_OVF_U:
2820 #endif
2821                 case CEE_CONV_OVF_U8:
2822                         CHECK_STACK (&td, 1);
2823                         switch (td.sp [-1].type) {
2824                         case STACK_TYPE_R8:
2825                                 ADD_CODE(&td, MINT_CONV_OVF_U8_R8);
2826                                 break;
2827                         case STACK_TYPE_I4:
2828                                 ADD_CODE(&td, MINT_CONV_OVF_U8_I4);
2829                                 break;
2830                         case STACK_TYPE_I8:
2831                                 ADD_CODE (&td, MINT_CONV_OVF_U8_I8);
2832                                 break;
2833                         default:
2834                                 g_assert_not_reached ();
2835                         }
2836                         ++td.ip;
2837                         SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I8);
2838                         break;
2839                 case CEE_LDTOKEN: {
2840                         int size;
2841                         gpointer handle;
2842                         token = read32 (td.ip + 1);
2843                         if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
2844                                 handle = mono_method_get_wrapper_data (method, token);
2845                                 klass = (MonoClass *) mono_method_get_wrapper_data (method, token + 1);
2846                                 if (klass == mono_defaults.typehandle_class)
2847                                         handle = &((MonoClass *) handle)->byval_arg;
2848
2849                                 if (generic_context) {
2850                                         handle = mono_class_inflate_generic_type_checked (handle, generic_context, &error);
2851                                         mono_error_cleanup (&error); /* FIXME: don't swallow the error */
2852                                 }
2853                         } else {
2854                                 handle = mono_ldtoken (image, token, &klass, generic_context);
2855                         }
2856                         mono_class_init (klass);
2857                         mt = mint_type (&klass->byval_arg);
2858                         g_assert (mt == MINT_TYPE_VT);
2859                         size = mono_class_value_size (klass, NULL);
2860                         g_assert (size == sizeof(gpointer));
2861                         PUSH_VT (&td, sizeof(gpointer));
2862                         ADD_CODE (&td, MINT_LDTOKEN);
2863                         ADD_CODE (&td, get_data_item_index (&td, handle));
2864
2865                         SET_TYPE (td.sp, stack_type [mt], klass);
2866                         td.sp++;
2867                         td.ip += 5;
2868                         break;
2869                 }
2870                 case CEE_ADD_OVF:
2871                         binary_arith_op(&td, MINT_ADD_OVF_I4);
2872                         ++td.ip;
2873                         break;
2874                 case CEE_ADD_OVF_UN:
2875                         binary_arith_op(&td, MINT_ADD_OVF_UN_I4);
2876                         ++td.ip;
2877                         break;
2878                 case CEE_MUL_OVF:
2879                         binary_arith_op(&td, MINT_MUL_OVF_I4);
2880                         ++td.ip;
2881                         break;
2882                 case CEE_MUL_OVF_UN:
2883                         binary_arith_op(&td, MINT_MUL_OVF_UN_I4);
2884                         ++td.ip;
2885                         break;
2886                 case CEE_SUB_OVF:
2887                         binary_arith_op(&td, MINT_SUB_OVF_I4);
2888                         ++td.ip;
2889                         break;
2890                 case CEE_SUB_OVF_UN:
2891                         binary_arith_op(&td, MINT_SUB_OVF_UN_I4);
2892                         ++td.ip;
2893                         break;
2894                 case CEE_ENDFINALLY:
2895                         g_assert (td.clause_indexes [in_offset] != -1);
2896                         td.sp = td.stack;
2897                         SIMPLE_OP (td, MINT_ENDFINALLY);
2898                         ADD_CODE (&td, td.clause_indexes [in_offset]);
2899                         generating_code = 0;
2900                         break;
2901                 case CEE_LEAVE:
2902                         td.sp = td.stack;
2903                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 5 + read32 (td.ip + 1));
2904                         td.ip += 5;
2905                         generating_code = 0;
2906                         break;
2907                 case CEE_LEAVE_S:
2908                         td.sp = td.stack;
2909                         handle_branch (&td, MINT_LEAVE_S, MINT_LEAVE, 2 + (gint8)td.ip [1]);
2910                         td.ip += 2;
2911                         generating_code = 0;
2912                         break;
2913                 case CEE_UNUSED41:
2914                         ++td.ip;
2915                         switch (*td.ip) {
2916                                 case CEE_MONO_CALLI_EXTRA_ARG:
2917                                         /* Same as CEE_CALLI, except that we drop the extra arg required for llvm specific behaviour */
2918                                         ADD_CODE (&td, MINT_POP);
2919                                         ADD_CODE (&td, 1);
2920                                         --td.sp;
2921                                         interp_transform_call (&td, method, NULL, domain, generic_context, is_bb_start, body_start_offset, NULL, FALSE);
2922                                         break;
2923                                 case CEE_MONO_JIT_ICALL_ADDR: {
2924                                         guint32 token;
2925                                         gpointer func;
2926                                         MonoJitICallInfo *info;
2927
2928                                         token = read32 (td.ip + 1);
2929                                         td.ip += 5;
2930                                         func = mono_method_get_wrapper_data (method, token);
2931                                         info = mono_find_jit_icall_by_addr (func);
2932
2933                                         ADD_CODE (&td, MINT_LDFTN);
2934                                         ADD_CODE (&td, get_data_item_index (&td, func));
2935                                         PUSH_SIMPLE_TYPE (&td, STACK_TYPE_I);
2936                                         break;
2937                                 }
2938                                 case CEE_MONO_ICALL: {
2939                                         guint32 token;
2940                                         gpointer func;
2941                                         MonoJitICallInfo *info;
2942
2943                                         token = read32 (td.ip + 1);
2944                                         td.ip += 5;
2945                                         func = mono_method_get_wrapper_data (method, token);
2946                                         info = mono_find_jit_icall_by_addr (func);
2947                                         g_assert (info);
2948
2949                                         CHECK_STACK (&td, info->sig->param_count);
2950                                         switch (info->sig->param_count) {
2951                                         case 0:
2952                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2953                                                         ADD_CODE (&td,MINT_ICALL_V_V);
2954                                                 else
2955                                                         ADD_CODE (&td, MINT_ICALL_V_P);
2956                                                 break;
2957                                         case 1:
2958                                                 if (MONO_TYPE_IS_VOID (info->sig->ret))
2959                                                         ADD_CODE (&td,MINT_ICALL_P_V);
2960                                                 else
2961                                                         ADD_CODE (&td,MINT_ICALL_P_P);
2962                                                 break;
2963                                         case 2:
2964                                                 if (MONO_TYPE_IS_VOID (info->sig->ret)) {
2965                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2966                                                                 ADD_CODE (&td,MINT_ICALL_PI_V);
2967                                                         else
2968                                                                 ADD_CODE (&td,MINT_ICALL_PP_V);
2969                                                 } else {
2970                                                         if (info->sig->params [1]->type == MONO_TYPE_I4)
2971                                                                 ADD_CODE (&td,MINT_ICALL_PI_P);
2972                                                         else
2973                                                                 ADD_CODE (&td,MINT_ICALL_PP_P);
2974                                                 }
2975                                                 break;
2976                                         case 3:
2977                                                 g_assert (MONO_TYPE_IS_VOID (info->sig->ret));
2978                                                 if (info->sig->params [2]->type == MONO_TYPE_I4)
2979                                                         ADD_CODE (&td,MINT_ICALL_PPI_V);
2980                                                 else
2981                                                         ADD_CODE (&td,MINT_ICALL_PPP_V);
2982                                                 break;
2983                                         default:
2984                                                 g_assert_not_reached ();
2985                                         }
2986
2987                                         if (func == mono_ftnptr_to_delegate) {
2988                                                 g_error ("TODO: ?");
2989                                         }
2990                                         ADD_CODE(&td, get_data_item_index (&td, func));
2991                                         td.sp -= info->sig->param_count;
2992
2993                                         if (!MONO_TYPE_IS_VOID (info->sig->ret)) {
2994                                                 td.sp ++;
2995                                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I);
2996                                         }
2997                                         break;
2998                                 }
2999                         case CEE_MONO_VTADDR: {
3000                                 int size;
3001                                 CHECK_STACK (&td, 1);
3002                                 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
3003                                         size = mono_class_native_size(td.sp [-1].klass, NULL);
3004                                 else
3005                                         size = mono_class_value_size(td.sp [-1].klass, NULL);
3006                                 size = (size + 7) & ~7;
3007                                 ADD_CODE(&td, MINT_VTRESULT);
3008                                 ADD_CODE(&td, 0);
3009                                 WRITE32(&td, &size);
3010                                 td.vt_sp -= size;
3011                                 ++td.ip;
3012                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3013                                 break;
3014                         }
3015                         case CEE_MONO_LDPTR:
3016                         case CEE_MONO_CLASSCONST:
3017                                 token = read32 (td.ip + 1);
3018                                 td.ip += 5;
3019                                 ADD_CODE(&td, MINT_MONO_LDPTR);
3020                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
3021                                 td.sp [0].type = STACK_TYPE_I;
3022                                 ++td.sp;
3023                                 break;
3024                         case CEE_MONO_OBJADDR:
3025                                 CHECK_STACK (&td, 1);
3026                                 ++td.ip;
3027                                 td.sp[-1].type = STACK_TYPE_MP;
3028                                 /* do nothing? */
3029                                 break;
3030                         case CEE_MONO_NEWOBJ:
3031                                 token = read32 (td.ip + 1);
3032                                 td.ip += 5;
3033                                 ADD_CODE(&td, MINT_MONO_NEWOBJ);
3034                                 ADD_CODE(&td, get_data_item_index (&td, mono_method_get_wrapper_data (method, token)));
3035                                 td.sp [0].type = STACK_TYPE_O;
3036                                 ++td.sp;
3037                                 break;
3038                         case CEE_MONO_RETOBJ:
3039                                 CHECK_STACK (&td, 1);
3040                                 token = read32 (td.ip + 1);
3041                                 td.ip += 5;
3042                                 ADD_CODE(&td, MINT_MONO_RETOBJ);
3043                                 td.sp--;
3044
3045                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3046
3047                                 /*stackval_from_data (signature->ret, frame->retval, sp->data.vt, signature->pinvoke);*/
3048
3049                                 if (td.sp > td.stack)
3050                                         g_warning ("CEE_MONO_RETOBJ: more values on stack: %d", td.sp-td.stack);
3051                                 break;
3052                         case CEE_MONO_LDNATIVEOBJ:
3053                                 token = read32 (td.ip + 1);
3054                                 td.ip += 5;
3055                                 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
3056                                 g_assert(klass->valuetype);
3057                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3058                                 break;
3059                         case CEE_MONO_TLS: {
3060                                 gint32 key = read32 (td.ip + 1);
3061                                 td.ip += 5;
3062                                 g_assert (key < TLS_KEY_NUM);
3063                                 ADD_CODE (&td, MINT_MONO_TLS);
3064                                 WRITE32 (&td, &key);
3065                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_MP);
3066                                 break;
3067                         }
3068                         case CEE_MONO_ATOMIC_STORE_I4:
3069                                 CHECK_STACK (&td, 2);
3070                                 SIMPLE_OP (td, MINT_MONO_ATOMIC_STORE_I4);
3071                                 td.sp -= 2;
3072                                 td.ip++;
3073                                 break;
3074                         case CEE_MONO_SAVE_LMF:
3075                         case CEE_MONO_RESTORE_LMF:
3076                         case CEE_MONO_NOT_TAKEN:
3077                                 ++td.ip;
3078                                 break;
3079                         case CEE_MONO_LDPTR_INT_REQ_FLAG:
3080                                 ADD_CODE (&td, MINT_MONO_LDPTR);
3081                                 ADD_CODE (&td, get_data_item_index (&td, mono_thread_interruption_request_flag ()));
3082                                 PUSH_TYPE (&td, STACK_TYPE_MP, NULL);
3083                                 ++td.ip;
3084                                 break;
3085                         case CEE_MONO_JIT_ATTACH:
3086                                 ADD_CODE (&td, MINT_MONO_JIT_ATTACH);
3087                                 ++td.ip;
3088                                 break;
3089                         case CEE_MONO_JIT_DETACH:
3090                                 ADD_CODE (&td, MINT_MONO_JIT_DETACH);
3091                                 ++td.ip;
3092                                 break;
3093                         default:
3094                                 g_error ("transform.c: Unimplemented opcode: 0xF0 %02x at 0x%x\n", *td.ip, td.ip-header->code);
3095                         }
3096                         break;
3097 #if 0
3098                 case CEE_PREFIX7:
3099                 case CEE_PREFIX6:
3100                 case CEE_PREFIX5:
3101                 case CEE_PREFIX4:
3102                 case CEE_PREFIX3:
3103                 case CEE_PREFIX2:
3104                 case CEE_PREFIXREF: ves_abort(); break;
3105 #endif
3106                 /*
3107                  * Note: Exceptions thrown when executing a prefixed opcode need
3108                  * to take into account the number of prefix bytes (usually the
3109                  * throw point is just (ip - n_prefix_bytes).
3110                  */
3111                 case CEE_PREFIX1:
3112                         ++td.ip;
3113                         switch (*td.ip) {
3114 #if 0
3115                         case CEE_ARGLIST: ves_abort(); break;
3116 #endif
3117                         case CEE_CEQ:
3118                                 CHECK_STACK(&td, 2);
3119                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3120                                         ADD_CODE(&td, MINT_CEQ_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3121                                 else
3122                                         ADD_CODE(&td, MINT_CEQ_I4 + td.sp [-1].type - STACK_TYPE_I4);
3123                                 --td.sp;
3124                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3125                                 ++td.ip;
3126                                 break;
3127                         case CEE_CGT:
3128                                 CHECK_STACK(&td, 2);
3129                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3130                                         ADD_CODE(&td, MINT_CGT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3131                                 else
3132                                         ADD_CODE(&td, MINT_CGT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3133                                 --td.sp;
3134                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3135                                 ++td.ip;
3136                                 break;
3137                         case CEE_CGT_UN:
3138                                 CHECK_STACK(&td, 2);
3139                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3140                                         ADD_CODE(&td, MINT_CGT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3141                                 else
3142                                         ADD_CODE(&td, MINT_CGT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3143                                 --td.sp;
3144                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3145                                 ++td.ip;
3146                                 break;
3147                         case CEE_CLT:
3148                                 CHECK_STACK(&td, 2);
3149                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3150                                         ADD_CODE(&td, MINT_CLT_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3151                                 else
3152                                         ADD_CODE(&td, MINT_CLT_I4 + td.sp [-1].type - STACK_TYPE_I4);
3153                                 --td.sp;
3154                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3155                                 ++td.ip;
3156                                 break;
3157                         case CEE_CLT_UN:
3158                                 CHECK_STACK(&td, 2);
3159                                 if (td.sp [-1].type == STACK_TYPE_O || td.sp [-1].type == STACK_TYPE_MP)
3160                                         ADD_CODE(&td, MINT_CLT_UN_I4 + STACK_TYPE_I - STACK_TYPE_I4);
3161                                 else
3162                                         ADD_CODE(&td, MINT_CLT_UN_I4 + td.sp [-1].type - STACK_TYPE_I4);
3163                                 --td.sp;
3164                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_I4);
3165                                 ++td.ip;
3166                                 break;
3167                         case CEE_LDVIRTFTN: /* fallthrough */
3168                         case CEE_LDFTN: {
3169                                 MonoMethod *m;
3170                                 if (*td.ip == CEE_LDVIRTFTN) {
3171                                         CHECK_STACK (&td, 1);
3172                                         --td.sp;
3173                                 }
3174                                 token = read32 (td.ip + 1);
3175                                 if (method->wrapper_type != MONO_WRAPPER_NONE)
3176                                         m = (MonoMethod *)mono_method_get_wrapper_data (method, token);
3177                                 else
3178                                         m = mono_get_method_full (image, token, NULL, generic_context);
3179
3180                                 if (method->wrapper_type == MONO_WRAPPER_NONE && m->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED)
3181                                         m = mono_marshal_get_synchronized_wrapper (m);
3182
3183                                 ADD_CODE(&td, *td.ip == CEE_LDFTN ? MINT_LDFTN : MINT_LDVIRTFTN);
3184                                 ADD_CODE(&td, get_data_item_index (&td, mono_interp_get_runtime_method (domain, m, &error)));
3185                                 mono_error_cleanup (&error); /* FIXME: don't swallow the error */
3186                                 td.ip += 5;
3187                                 PUSH_SIMPLE_TYPE (&td, STACK_TYPE_F);
3188                                 break;
3189                         }
3190                         case CEE_LDARG:
3191                                 load_arg (&td, read16 (td.ip + 1));
3192                                 td.ip += 3;
3193                                 break;
3194                         case CEE_LDARGA: {
3195                                 int n = read16 (td.ip + 1);
3196                                 ADD_CODE (&td, MINT_LDARGA);
3197                                 ADD_CODE (&td, td.rtm->arg_offsets [n]); /* FIX for large offsets */
3198                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3199                                 td.ip += 3;
3200                                 break;
3201                         }
3202                         case CEE_STARG:
3203                                 store_arg (&td, read16 (td.ip + 1));
3204                                 td.ip += 3;
3205                                 break;
3206                         case CEE_LDLOC:
3207                                 load_local (&td, read16 (td.ip + 1));
3208                                 td.ip += 3;
3209                                 break;
3210                         case CEE_LDLOCA:
3211                                 ADD_CODE(&td, MINT_LDLOCA_S);
3212                                 ADD_CODE(&td, td.rtm->local_offsets [read16 (td.ip + 1)]);
3213                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_MP);
3214                                 td.ip += 3;
3215                                 break;
3216                         case CEE_STLOC:
3217                                 store_local (&td, read16 (td.ip + 1));
3218                                 td.ip += 3;
3219                                 break;
3220                         case CEE_LOCALLOC:
3221                                 CHECK_STACK (&td, 1);
3222 #if SIZEOF_VOID_P == 8
3223                                 if (td.sp [-1].type == STACK_TYPE_I8)
3224                                         ADD_CODE(&td, MINT_CONV_I4_I8);
3225 #endif
3226                                 ADD_CODE(&td, MINT_LOCALLOC);
3227                                 if (td.sp != td.stack + 1)
3228                                         g_warning("CEE_LOCALLOC: stack not empty");
3229                                 ++td.ip;
3230                                 SET_SIMPLE_TYPE(td.sp - 1, STACK_TYPE_MP);
3231                                 break;
3232 #if 0
3233                         case CEE_UNUSED57: ves_abort(); break;
3234 #endif
3235                         case CEE_ENDFILTER:
3236                                 ADD_CODE (&td, MINT_ENDFILTER);
3237                                 ++td.ip;
3238                                 break;
3239                         case CEE_UNALIGNED_:
3240                                 td.ip += 2;
3241                                 break;
3242                         case CEE_VOLATILE_:
3243                                 ++td.ip;
3244                                 /* FIX: should do something? */;
3245                                 break;
3246                         case CEE_TAIL_:
3247                                 ++td.ip;
3248                                 /* FIX: should do something? */;
3249                                 break;
3250                         case CEE_INITOBJ:
3251                                 CHECK_STACK(&td, 1);
3252                                 token = read32 (td.ip + 1);
3253                                 klass = mini_get_class (method, token, generic_context);
3254                                 if (klass->valuetype) {
3255                                         ADD_CODE (&td, MINT_INITOBJ);
3256                                         i32 = mono_class_value_size (klass, NULL);
3257                                         WRITE32 (&td, &i32);
3258                                 } else {
3259                                         ADD_CODE (&td, MINT_LDNULL);
3260                                         ADD_CODE (&td, MINT_STIND_REF);
3261                                 }
3262                                 td.ip += 5;
3263                                 --td.sp;
3264                                 break;
3265                         case CEE_CPBLK:
3266                                 CHECK_STACK(&td, 3);
3267                                 /* FIX? convert length to I8? */
3268                                 ADD_CODE(&td, MINT_CPBLK);
3269                                 td.sp -= 3;
3270                                 ++td.ip;
3271                                 break;
3272                         case CEE_READONLY_:
3273                                 readonly = TRUE;
3274                                 td.ip += 1;
3275                                 break;
3276                         case CEE_CONSTRAINED_:
3277                                 token = read32 (td.ip + 1);
3278                                 constrained_class = mini_get_class (method, token, generic_context);
3279                                 mono_class_init (constrained_class);
3280                                 td.ip += 5;
3281                                 break;
3282                         case CEE_INITBLK:
3283                                 CHECK_STACK(&td, 3);
3284                                 ADD_CODE(&td, MINT_INITBLK);
3285                                 td.sp -= 3;
3286                                 td.ip += 1;
3287                                 break;
3288 #if 0
3289                         case CEE_NO_:
3290                                 /* FIXME: implement */
3291                                 ip += 2;
3292                                 break;
3293 #endif
3294                         case CEE_RETHROW:
3295                                 SIMPLE_OP (td, MINT_RETHROW);
3296                                 generating_code = 0;
3297                                 break;
3298                         case CEE_SIZEOF: {
3299                                 gint32 size;
3300                                 token = read32 (td.ip + 1);
3301                                 td.ip += 5;
3302                                 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
3303                                         int align;
3304                                         MonoType *type = mono_type_create_from_typespec (image, token);
3305                                         size = mono_type_size (type, &align);
3306                                 } else {
3307                                         int align;
3308                                         MonoClass *szclass = mini_get_class (method, token, generic_context);
3309                                         mono_class_init (szclass);
3310 #if 0
3311                                         if (!szclass->valuetype)
3312                                                 THROW_EX (mono_exception_from_name (mono_defaults.corlib, "System", "InvalidProgramException"), ip - 5);
3313 #endif
3314                                         size = mono_type_size (&szclass->byval_arg, &align);
3315                                 }
3316                                 ADD_CODE(&td, MINT_LDC_I4);
3317                                 WRITE32(&td, &size);
3318                                 PUSH_SIMPLE_TYPE(&td, STACK_TYPE_I4);
3319                                 break;
3320                         }
3321                         case CEE_REFANYTYPE:
3322                                 ADD_CODE (&td, MINT_REFANYTYPE);
3323                                 td.ip += 1;
3324                                 POP_VT (&td, sizeof (MonoTypedRef));
3325                                 PUSH_VT (&td, sizeof (gpointer));
3326                                 SET_TYPE(td.sp - 1, STACK_TYPE_VT, NULL);
3327                                 break;
3328                         default:
3329                                 g_error ("transform.c: Unimplemented opcode: 0xFE %02x (%s) at 0x%x\n", *td.ip, mono_opcode_name (256 + *td.ip), td.ip-header->code);
3330                         }
3331                         break;
3332                 default:
3333                         g_error ("transform.c: Unimplemented opcode: %02x at 0x%x\n", *td.ip, td.ip-header->code);
3334                 }
3335
3336                 if (td.new_ip - td.new_code != new_in_start_offset)
3337                         td.last_new_ip = td.new_code + new_in_start_offset;
3338                 else if (td.is_bb_start [td.in_start - td.il_code])
3339                         td.is_bb_start [td.ip - td.il_code] = 1;
3340
3341                 td.last_ip = td.in_start;
3342         }
3343
3344         if (mono_interp_traceopt) {
3345                 const guint16 *p = td.new_code;
3346                 printf("Runtime method: %p, VT stack size: %d\n", rtm, td.max_vt_sp);
3347                 printf("Calculated stack size: %d, stated size: %d\n", td.max_stack_height, header->max_stack);
3348                 while (p < td.new_ip) {
3349                         p = mono_interp_dis_mintop(td.new_code, p);
3350                         printf("\n");
3351                 }
3352         }
3353         g_assert (td.max_stack_height <= (header->max_stack + 1));
3354
3355         int code_len = td.new_ip - td.new_code;
3356
3357         rtm->clauses = mono_domain_alloc0 (domain, header->num_clauses * sizeof (MonoExceptionClause));
3358         memcpy (rtm->clauses, header->clauses, header->num_clauses * sizeof(MonoExceptionClause));
3359         rtm->code = mono_domain_alloc0 (domain, (td.new_ip - td.new_code) * sizeof (gushort));
3360         memcpy (rtm->code, td.new_code, (td.new_ip - td.new_code) * sizeof(gushort));
3361         g_free (td.new_code);
3362         rtm->new_body_start = rtm->code + body_start_offset;
3363         rtm->num_clauses = header->num_clauses;
3364         for (i = 0; i < header->num_clauses; i++) {
3365                 MonoExceptionClause *c = rtm->clauses + i;
3366                 int end_off = c->try_offset + c->try_len;
3367                 c->try_offset = td.in_offsets [c->try_offset];
3368                 c->try_len = td.in_offsets [end_off] - c->try_offset;
3369                 end_off = c->handler_offset + c->handler_len;
3370                 c->handler_offset = td.in_offsets [c->handler_offset];
3371                 c->handler_len = td.in_offsets [end_off] - c->handler_offset;
3372                 if (c->flags & MONO_EXCEPTION_CLAUSE_FILTER)
3373                         c->data.filter_offset = td.in_offsets [c->data.filter_offset];
3374         }
3375         rtm->vt_stack_size = td.max_vt_sp;
3376         rtm->alloca_size = rtm->locals_size + rtm->args_size + rtm->vt_stack_size + rtm->stack_size;
3377         rtm->data_items = mono_domain_alloc0 (domain, td.n_data_items * sizeof (td.data_items [0]));
3378         memcpy (rtm->data_items, td.data_items, td.n_data_items * sizeof (td.data_items [0]));
3379
3380         /* Save debug info */
3381         interp_save_debug_info (rtm, header, &td, line_numbers);
3382
3383         /* Create a MonoJitInfo for the interpreted method by creating the interpreter IR as the native code. */
3384         int jinfo_len = mono_jit_info_size (0, header->num_clauses, 0);
3385         MonoJitInfo *jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, jinfo_len);
3386         rtm->jinfo = jinfo;
3387         mono_jit_info_init (jinfo, method, (guint8*)rtm->code, code_len, 0, header->num_clauses, 0);
3388         for (i = 0; i < jinfo->num_clauses; ++i) {
3389                 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3390                 MonoExceptionClause *c = rtm->clauses + i;
3391
3392                 ei->flags = c->flags;
3393                 ei->try_start = rtm->code + c->try_offset;
3394                 ei->try_end = rtm->code + c->try_offset + c->try_len;
3395                 ei->handler_start = rtm->code + c->handler_offset;
3396                 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER || ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3397                 } else {
3398                         ei->data.catch_class = c->data.catch_class;
3399                 }
3400         }
3401
3402         g_free (td.in_offsets);
3403         g_free (td.forward_refs);
3404         for (i = 0; i < header->code_size; ++i)
3405                 g_free (td.stack_state [i]);
3406         g_free (td.stack_state);
3407         g_free (td.stack_height);
3408         g_free (td.vt_stack_size);
3409         g_free (td.data_items);
3410         g_free (td.stack);
3411         g_hash_table_destroy (td.data_hash);
3412         g_free (td.clause_indexes);
3413         g_array_free (line_numbers, TRUE);
3414 }
3415
3416 static mono_mutex_t calc_section;
3417
3418 void
3419 mono_interp_transform_init (void)
3420 {
3421         mono_os_mutex_init_recursive(&calc_section);
3422 }
3423
3424 MonoException *
3425 mono_interp_transform_method (RuntimeMethod *runtime_method, ThreadContext *context)
3426 {
3427         int i, align, size, offset;
3428         MonoMethod *method = runtime_method->method;
3429         MonoImage *image = method->klass->image;
3430         MonoMethodHeader *header = mono_method_get_header (method);
3431         MonoMethodSignature *signature = mono_method_signature (method);
3432         register const unsigned char *ip, *end;
3433         const MonoOpcode *opcode;
3434         MonoMethod *m;
3435         MonoClass *class;
3436         MonoDomain *domain = mono_domain_get ();
3437         unsigned char *is_bb_start;
3438         int in;
3439         MonoVTable *method_class_vt;
3440         int backwards;
3441         MonoGenericContext *generic_context = NULL;
3442
3443         // g_printerr ("TRANSFORM(0x%016lx): begin %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3444         method_class_vt = mono_class_vtable (domain, runtime_method->method->klass);
3445         if (!method_class_vt->initialized) {
3446                 MonoError error;
3447                 jmp_buf env;
3448                 MonoInvocation *last_env_frame = context->env_frame;
3449                 jmp_buf *old_env = context->current_env;
3450                 error_init (&error);
3451
3452                 if (setjmp(env)) {
3453                         MonoException *failed = context->env_frame->ex;
3454                         context->env_frame->ex = NULL;
3455                         context->env_frame = last_env_frame;
3456                         context->current_env = old_env;
3457                         return failed;
3458                 }
3459                 context->env_frame = context->current_frame;
3460                 context->current_env = &env;
3461                 mono_runtime_class_init_full (method_class_vt, &error);
3462                 if (!mono_error_ok (&error)) {
3463                         return mono_error_convert_to_exception (&error);
3464                 }
3465                 context->env_frame = last_env_frame;
3466                 context->current_env = old_env;
3467         }
3468
3469         mono_profiler_method_jit (method); /* sort of... */
3470
3471         if (mono_method_signature (method)->is_inflated)
3472                 generic_context = mono_method_get_context (method);
3473         else {
3474                 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
3475                 if (generic_container)
3476                         generic_context = &generic_container->context;
3477         }
3478
3479         if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3480                 MonoMethod *nm = NULL;
3481                 mono_os_mutex_lock(&calc_section);
3482                 if (runtime_method->transformed) {
3483                         mono_os_mutex_unlock(&calc_section);
3484                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3485                         return NULL;
3486                 }
3487
3488                 /* assumes all internal calls with an array this are built in... */
3489                 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL && (! mono_method_signature (method)->hasthis || method->klass->rank == 0)) {
3490                         nm = mono_marshal_get_native_wrapper (method, TRUE, FALSE);
3491                         signature = mono_method_signature (nm);
3492                 } else {
3493                         const char *name = method->name;
3494                         if (method->klass->parent == mono_defaults.multicastdelegate_class) {
3495                                 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
3496                                         MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
3497                                         g_assert (mi);
3498                                         char *wrapper_name = g_strdup_printf ("__icall_wrapper_%s", mi->name);
3499                                         nm = mono_marshal_get_icall_wrapper (mi->sig, wrapper_name, mi->func, TRUE);
3500                                 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
3501                                         nm = mono_marshal_get_delegate_invoke (method, NULL);
3502                                 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
3503                                         nm = mono_marshal_get_delegate_begin_invoke (method);
3504                                 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
3505                                         nm = mono_marshal_get_delegate_end_invoke (method);
3506                                 }
3507                         }
3508                         if (nm == NULL) {
3509                                 runtime_method->code = g_malloc(sizeof(short));
3510                                 runtime_method->code[0] = MINT_CALLRUN;
3511                         }
3512                 }
3513                 if (nm == NULL) {
3514                         runtime_method->stack_size = sizeof (stackval); /* for tracing */
3515                         runtime_method->alloca_size = runtime_method->stack_size;
3516                         runtime_method->transformed = TRUE;
3517                         mono_os_mutex_unlock(&calc_section);
3518                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3519                         return NULL;
3520                 }
3521                 method = nm;
3522                 header = mono_method_get_header (nm);
3523                 mono_os_mutex_unlock(&calc_section);
3524         } else if (method->klass == mono_defaults.array_class) {
3525                 if (!strcmp (method->name, "UnsafeMov") || !strcmp (method->name, "UnsafeLoad")) {
3526                         mono_os_mutex_lock (&calc_section);
3527                         if (!runtime_method->transformed) {
3528                                 runtime_method->code = g_malloc (sizeof (short));
3529                                 runtime_method->code[0] = MINT_CALLRUN;
3530                                 runtime_method->stack_size = sizeof (stackval); /* for tracing */
3531                                 runtime_method->alloca_size = runtime_method->stack_size;
3532                                 runtime_method->transformed = TRUE;
3533                         }
3534                         mono_os_mutex_unlock(&calc_section);
3535                         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3536                         return NULL;
3537                 } else if (!strcmp (method->name, "UnsafeStore")) {
3538                         g_error ("TODO");
3539                 }
3540         }
3541         g_assert ((signature->param_count + signature->hasthis) < 1000);
3542         g_assert (header->max_stack < 10000);
3543         /* intern the strings in the method. */
3544         ip = header->code;
3545         end = ip + header->code_size;
3546
3547         is_bb_start = g_malloc0(header->code_size);
3548         is_bb_start [0] = 1;
3549         while (ip < end) {
3550                 in = *ip;
3551                 if (in == 0xfe) {
3552                         ip++;
3553                         in = *ip + 256;
3554                 }
3555                 else if (in == 0xf0) {
3556                         ip++;
3557                         in = *ip + MONO_CEE_MONO_ICALL;
3558                 }
3559                 opcode = &mono_opcodes [in];
3560                 switch (opcode->argument) {
3561                 case MonoInlineNone:
3562                         ++ip;
3563                         break;
3564                 case MonoInlineString:
3565                         if (method->wrapper_type == MONO_WRAPPER_NONE)
3566                                 mono_ldstr (domain, image, mono_metadata_token_index (read32 (ip + 1)));
3567                         ip += 5;
3568                         break;
3569                 case MonoInlineType:
3570                         if (method->wrapper_type == MONO_WRAPPER_NONE) {
3571                                 class = mini_get_class (method, read32 (ip + 1), generic_context);
3572                                 mono_class_init (class);
3573                                 /* quick fix to not do this for the fake ptr classes - probably should not be getting the vtable at all here */
3574 #if 0
3575                                 g_error ("FIXME: interface method lookup: %s (in method %s)", class->name, method->name);
3576                                 if (!(class->flags & TYPE_ATTRIBUTE_INTERFACE) && class->interface_offsets != NULL)
3577                                         mono_class_vtable (domain, class);
3578 #endif
3579                         }
3580                         ip += 5;
3581                         break;
3582                 case MonoInlineMethod:
3583                         if (method->wrapper_type == MONO_WRAPPER_NONE && *ip != CEE_CALLI) {
3584                                 m = mono_get_method_full (image, read32 (ip + 1), NULL, generic_context);
3585                                 if (m == NULL) {
3586                                         g_free (is_bb_start);
3587                                         g_error ("FIXME: where to get method and class string?");
3588                                         return NULL;
3589                                         // return mono_get_exception_missing_method ();
3590                                 }
3591                                 mono_class_init (m->klass);
3592                                 if (!mono_class_is_interface (m->klass))
3593                                         mono_class_vtable (domain, m->klass);
3594                         }
3595                         ip += 5;
3596                         break;
3597                 case MonoInlineField:
3598                 case MonoInlineSig:
3599                 case MonoInlineI:
3600                 case MonoInlineTok:
3601                 case MonoShortInlineR:
3602                         ip += 5;
3603                         break;
3604                 case MonoInlineBrTarget:
3605                         offset = read32 (ip + 1);
3606                         ip += 5;
3607                         backwards = offset < 0;
3608                         offset += ip - header->code;
3609                         g_assert (offset >= 0 && offset < header->code_size);
3610                         is_bb_start [offset] |= backwards ? 2 : 1;
3611                         break;
3612                 case MonoShortInlineBrTarget:
3613                         offset = ((gint8 *)ip) [1];
3614                         ip += 2;
3615                         backwards = offset < 0;
3616                         offset += ip - header->code;
3617                         g_assert (offset >= 0 && offset < header->code_size);
3618                         is_bb_start [offset] |= backwards ? 2 : 1;
3619                         break;
3620                 case MonoInlineVar:
3621                         ip += 3;
3622                         break;
3623                 case MonoShortInlineVar:
3624                 case MonoShortInlineI:
3625                         ip += 2;
3626                         break;
3627                 case MonoInlineSwitch: {
3628                         guint32 n;
3629                         const unsigned char *next_ip;
3630                         ++ip;
3631                         n = read32 (ip);
3632                         ip += 4;
3633                         next_ip = ip + 4 * n;
3634                         for (i = 0; i < n; i++) {
3635                                 offset = read32 (ip);
3636                                 backwards = offset < 0;
3637                                 offset += next_ip - header->code;
3638                                 g_assert (offset >= 0 && offset < header->code_size);
3639                                 is_bb_start [offset] |= backwards ? 2 : 1;
3640                                 ip += 4;
3641                         }
3642                         break;
3643                 }
3644                 case MonoInlineR:
3645                 case MonoInlineI8:
3646                         ip += 9;
3647                         break;
3648                 default:
3649                         g_assert_not_reached ();
3650                 }
3651         }
3652         // g_printerr ("TRANSFORM(0x%016lx): end %s::%s\n", mono_thread_current (), method->klass->name, method->name);
3653
3654         /* the rest needs to be locked so it is only done once */
3655         mono_os_mutex_lock(&calc_section);
3656         if (runtime_method->transformed) {
3657                 mono_os_mutex_unlock(&calc_section);
3658                 g_free (is_bb_start);
3659                 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3660                 return NULL;
3661         }
3662
3663         runtime_method->local_offsets = g_malloc (header->num_locals * sizeof(guint32));
3664         runtime_method->stack_size = (sizeof (stackval)) * (header->max_stack + 2); /* + 1 for returns of called functions  + 1 for 0-ing in trace*/
3665         runtime_method->stack_size = (runtime_method->stack_size + 7) & ~7;
3666         offset = 0;
3667         for (i = 0; i < header->num_locals; ++i) {
3668                 size = mono_type_size (header->locals [i], &align);
3669                 offset += align - 1;
3670                 offset &= ~(align - 1);
3671                 runtime_method->local_offsets [i] = offset;
3672                 offset += size;
3673         }
3674         offset = (offset + 7) & ~7;
3675         runtime_method->locals_size = offset;
3676         g_assert (runtime_method->locals_size < 65536);
3677         offset = 0;
3678         runtime_method->arg_offsets = g_malloc ((!!signature->hasthis + signature->param_count) * sizeof(guint32));
3679
3680         if (signature->hasthis) {
3681                 g_assert (!signature->pinvoke);
3682                 size = mono_type_stack_size (&method->klass->byval_arg, &align);
3683                 offset += align - 1;
3684                 offset &= ~(align - 1);
3685                 runtime_method->arg_offsets [0] = offset;
3686                 offset += size;
3687         }
3688
3689         for (i = 0; i < signature->param_count; ++i) {
3690                 if (signature->pinvoke) {
3691                         guint32 dummy;
3692                         size = mono_type_native_stack_size (signature->params [i], &dummy);
3693                         align = 8;
3694                 }
3695                 else
3696                         size = mono_type_stack_size (signature->params [i], &align);
3697                 offset += align - 1;
3698                 offset &= ~(align - 1);
3699                 runtime_method->arg_offsets [i + !!signature->hasthis] = offset;
3700                 offset += size;
3701         }
3702         offset = (offset + 7) & ~7;
3703         runtime_method->args_size = offset;
3704         g_assert (runtime_method->args_size < 10000);
3705
3706         generate (method, runtime_method, is_bb_start, generic_context);
3707
3708         g_free (is_bb_start);
3709
3710         mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_OK);
3711         runtime_method->transformed = TRUE;
3712         mono_os_mutex_unlock(&calc_section);
3713
3714         return NULL;
3715 }
3716