2 * mini.c: The new Mono code generator.
5 * Paolo Molaro (lupus@ximian.com)
6 * Dietmar Maurer (dietmar@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc.
9 * Copyright 2003-2010 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
21 #ifdef HAVE_SYS_TIME_H
25 #include <mono/utils/memcheck.h>
27 #include <mono/metadata/assembly.h>
28 #include <mono/metadata/loader.h>
29 #include <mono/metadata/tabledefs.h>
30 #include <mono/metadata/class.h>
31 #include <mono/metadata/object.h>
32 #include <mono/metadata/tokentype.h>
33 #include <mono/metadata/tabledefs.h>
34 #include <mono/metadata/threads.h>
35 #include <mono/metadata/appdomain.h>
36 #include <mono/metadata/debug-helpers.h>
37 #include "mono/metadata/profiler.h"
38 #include <mono/metadata/profiler-private.h>
39 #include <mono/metadata/mono-config.h>
40 #include <mono/metadata/environment.h>
41 #include <mono/metadata/mono-debug.h>
42 #include <mono/metadata/gc-internal.h>
43 #include <mono/metadata/threads-types.h>
44 #include <mono/metadata/verify.h>
45 #include <mono/metadata/verify-internals.h>
46 #include <mono/metadata/mempool-internals.h>
47 #include <mono/metadata/attach.h>
48 #include <mono/metadata/runtime.h>
49 #include <mono/utils/mono-math.h>
50 #include <mono/utils/mono-compiler.h>
51 #include <mono/utils/mono-counters.h>
52 #include <mono/utils/mono-error-internals.h>
53 #include <mono/utils/mono-logger-internal.h>
54 #include <mono/utils/mono-mmap.h>
55 #include <mono/utils/mono-path.h>
56 #include <mono/utils/mono-tls.h>
57 #include <mono/utils/mono-hwcap.h>
58 #include <mono/utils/dtrace.h>
59 #include <mono/utils/mono-threads.h>
60 #include <mono/io-layer/io-layer.h>
63 #include "seq-points.h"
71 #include "jit-icalls.h"
74 #include "debugger-agent.h"
76 MonoTraceSpec *mono_jit_trace_calls;
77 MonoMethodDesc *mono_inject_async_exc_method;
78 int mono_inject_async_exc_pos;
79 MonoMethodDesc *mono_break_at_bb_method;
80 int mono_break_at_bb_bb_num;
81 gboolean mono_do_x86_stack_align = TRUE;
82 gboolean mono_using_xdebug;
84 #define mono_jit_lock() mono_mutex_lock (&jit_mutex)
85 #define mono_jit_unlock() mono_mutex_unlock (&jit_mutex)
86 static mono_mutex_t jit_mutex;
88 /* Whenever to check for pending exceptions in managed-to-native wrappers */
89 gboolean check_for_pending_exc = TRUE;
92 mono_realloc_native_code (MonoCompile *cfg)
94 #if defined(__default_codegen__)
95 return g_realloc (cfg->native_code, cfg->code_size);
96 #elif defined(__native_client_codegen__)
99 guint alignment_check;
101 /* Save the old alignment offset so we can re-align after the realloc. */
102 old_padding = (guint)(cfg->native_code - cfg->native_code_alloc);
103 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
105 cfg->native_code_alloc = g_realloc ( cfg->native_code_alloc,
106 cfg->code_size + kNaClAlignment );
108 /* Align native_code to next nearest kNaClAlignment byte. */
109 native_code = (guint)cfg->native_code_alloc + kNaClAlignment;
110 native_code = (guint)native_code & ~kNaClAlignmentMask;
112 /* Shift the data to be 32-byte aligned again. */
113 memmove (native_code, cfg->native_code_alloc + old_padding, cfg->code_size);
115 alignment_check = (guint)native_code & kNaClAlignmentMask;
116 g_assert (alignment_check == 0);
119 g_assert_not_reached ();
120 return cfg->native_code;
124 #ifdef __native_client_codegen__
126 /* Prevent instructions from straddling a 32-byte alignment boundary. */
127 /* Instructions longer than 32 bytes must be aligned internally. */
128 /* IN: pcode, instlen */
130 void mono_nacl_align_inst(guint8 **pcode, int instlen) {
133 space_in_block = kNaClAlignment - ((uintptr_t)(*pcode) & kNaClAlignmentMask);
135 if (G_UNLIKELY (instlen >= kNaClAlignment)) {
136 g_assert_not_reached();
137 } else if (instlen > space_in_block) {
138 *pcode = mono_arch_nacl_pad(*pcode, space_in_block);
142 /* Move emitted call sequence to the end of a kNaClAlignment-byte block. */
143 /* IN: start pointer to start of call sequence */
144 /* IN: pcode pointer to end of call sequence (current "IP") */
145 /* OUT: start pointer to the start of the call sequence after padding */
146 /* OUT: pcode pointer to the end of the call sequence after padding */
147 void mono_nacl_align_call(guint8 **start, guint8 **pcode) {
148 const size_t MAX_NACL_CALL_LENGTH = kNaClAlignment;
149 guint8 copy_of_call[MAX_NACL_CALL_LENGTH];
152 const size_t length = (size_t)((*pcode)-(*start));
153 g_assert(length < MAX_NACL_CALL_LENGTH);
155 memcpy(copy_of_call, *start, length);
156 temp = mono_nacl_pad_call(*start, (guint8)length);
157 memcpy(temp, copy_of_call, length);
159 (*pcode) = temp + length;
162 /* mono_nacl_pad_call(): Insert padding for Native Client call instructions */
163 /* code pointer to buffer for emitting code */
164 /* ilength length of call instruction */
165 guint8 *mono_nacl_pad_call(guint8 *code, guint8 ilength) {
166 int freeSpaceInBlock = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
167 int padding = freeSpaceInBlock - ilength;
170 /* There isn't enough space in this block for the instruction. */
171 /* Fill this block and start a new one. */
172 code = mono_arch_nacl_pad(code, freeSpaceInBlock);
173 freeSpaceInBlock = kNaClAlignment;
174 padding = freeSpaceInBlock - ilength;
176 g_assert(ilength > 0);
177 g_assert(padding >= 0);
178 g_assert(padding < kNaClAlignment);
179 if (0 == padding) return code;
180 return mono_arch_nacl_pad(code, padding);
183 guint8 *mono_nacl_align(guint8 *code) {
184 int padding = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
185 if (padding != kNaClAlignment) code = mono_arch_nacl_pad(code, padding);
189 void mono_nacl_fix_patches(const guint8 *code, MonoJumpInfo *ji)
191 #ifndef USE_JUMP_TABLES
192 MonoJumpInfo *patch_info;
193 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
194 unsigned char *ip = patch_info->ip.i + code;
195 ip = mono_arch_nacl_skip_nops(ip);
196 patch_info->ip.i = ip - code;
200 #endif /* __native_client_codegen__ */
203 MonoExceptionClause *clause;
204 MonoBasicBlock *basic_block;
209 * mono_emit_unwind_op:
211 * Add an unwind op with the given parameters for the list of unwind ops stored in
215 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
217 MonoUnwindOp *op = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
224 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
225 if (cfg->verbose_level > 1) {
228 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
230 case DW_CFA_def_cfa_register:
231 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
233 case DW_CFA_def_cfa_offset:
234 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
237 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
243 #define MONO_INIT_VARINFO(vi,id) do { \
244 (vi)->range.first_use.pos.bid = 0xffff; \
250 * mono_unlink_bblock:
252 * Unlink two basic blocks.
255 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
261 for (i = 0; i < from->out_count; ++i) {
262 if (to == from->out_bb [i]) {
269 for (i = 0; i < from->out_count; ++i) {
270 if (from->out_bb [i] != to)
271 from->out_bb [pos ++] = from->out_bb [i];
273 g_assert (pos == from->out_count - 1);
278 for (i = 0; i < to->in_count; ++i) {
279 if (from == to->in_bb [i]) {
286 for (i = 0; i < to->in_count; ++i) {
287 if (to->in_bb [i] != from)
288 to->in_bb [pos ++] = to->in_bb [i];
290 g_assert (pos == to->in_count - 1);
296 * mono_bblocks_linked:
298 * Return whenever BB1 and BB2 are linked in the CFG.
301 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
305 for (i = 0; i < bb1->out_count; ++i) {
306 if (bb1->out_bb [i] == bb2)
314 mono_find_block_region_notry (MonoCompile *cfg, int offset)
316 MonoMethodHeader *header = cfg->header;
317 MonoExceptionClause *clause;
320 for (i = 0; i < header->num_clauses; ++i) {
321 clause = &header->clauses [i];
322 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
323 (offset < (clause->handler_offset)))
324 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
326 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
327 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
328 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
329 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
330 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
332 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
340 * mono_get_block_region_notry:
342 * Return the region corresponding to REGION, ignoring try clauses nested inside
346 mono_get_block_region_notry (MonoCompile *cfg, int region)
348 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
349 MonoMethodHeader *header = cfg->header;
352 * This can happen if a try clause is nested inside a finally clause.
354 int clause_index = (region >> 8) - 1;
355 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
357 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
364 mono_find_spvar_for_region (MonoCompile *cfg, int region)
366 region = mono_get_block_region_notry (cfg, region);
368 return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
372 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
376 array [*dfn] = start;
377 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
378 for (i = 0; i < start->out_count; ++i) {
379 if (start->out_bb [i]->dfn)
382 start->out_bb [i]->dfn = *dfn;
383 start->out_bb [i]->df_parent = start;
384 array [*dfn] = start->out_bb [i];
385 df_visit (start->out_bb [i], dfn, array);
390 mono_reverse_branch_op (guint32 opcode)
392 static const int reverse_map [] = {
393 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
394 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
396 static const int reverse_fmap [] = {
397 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
398 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
400 static const int reverse_lmap [] = {
401 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
402 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
404 static const int reverse_imap [] = {
405 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
406 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
409 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
410 opcode = reverse_map [opcode - CEE_BEQ];
411 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
412 opcode = reverse_fmap [opcode - OP_FBEQ];
413 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
414 opcode = reverse_lmap [opcode - OP_LBEQ];
415 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
416 opcode = reverse_imap [opcode - OP_IBEQ];
418 g_assert_not_reached ();
424 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
426 type = mini_get_underlying_type (cfg, type);
429 switch (type->type) {
432 case MONO_TYPE_BOOLEAN:
433 return OP_STOREI1_MEMBASE_REG;
437 return OP_STOREI2_MEMBASE_REG;
440 return OP_STOREI4_MEMBASE_REG;
444 case MONO_TYPE_FNPTR:
445 return OP_STORE_MEMBASE_REG;
446 case MONO_TYPE_CLASS:
447 case MONO_TYPE_STRING:
448 case MONO_TYPE_OBJECT:
449 case MONO_TYPE_SZARRAY:
450 case MONO_TYPE_ARRAY:
451 return OP_STORE_MEMBASE_REG;
454 return OP_STOREI8_MEMBASE_REG;
456 return OP_STORER4_MEMBASE_REG;
458 return OP_STORER8_MEMBASE_REG;
459 case MONO_TYPE_VALUETYPE:
460 if (type->data.klass->enumtype) {
461 type = mono_class_enum_basetype (type->data.klass);
464 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
465 return OP_STOREX_MEMBASE;
466 return OP_STOREV_MEMBASE;
467 case MONO_TYPE_TYPEDBYREF:
468 return OP_STOREV_MEMBASE;
469 case MONO_TYPE_GENERICINST:
470 type = &type->data.generic_class->container_class->byval_arg;
474 g_assert (mini_type_var_is_vt (cfg, type));
475 return OP_STOREV_MEMBASE;
477 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
483 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
485 type = mini_get_underlying_type (cfg, type);
487 switch (type->type) {
489 return OP_LOADI1_MEMBASE;
491 case MONO_TYPE_BOOLEAN:
492 return OP_LOADU1_MEMBASE;
494 return OP_LOADI2_MEMBASE;
497 return OP_LOADU2_MEMBASE;
499 return OP_LOADI4_MEMBASE;
501 return OP_LOADU4_MEMBASE;
505 case MONO_TYPE_FNPTR:
506 return OP_LOAD_MEMBASE;
507 case MONO_TYPE_CLASS:
508 case MONO_TYPE_STRING:
509 case MONO_TYPE_OBJECT:
510 case MONO_TYPE_SZARRAY:
511 case MONO_TYPE_ARRAY:
512 return OP_LOAD_MEMBASE;
515 return OP_LOADI8_MEMBASE;
517 return OP_LOADR4_MEMBASE;
519 return OP_LOADR8_MEMBASE;
520 case MONO_TYPE_VALUETYPE:
521 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
522 return OP_LOADX_MEMBASE;
523 case MONO_TYPE_TYPEDBYREF:
524 return OP_LOADV_MEMBASE;
525 case MONO_TYPE_GENERICINST:
526 if (mono_type_generic_inst_is_valuetype (type))
527 return OP_LOADV_MEMBASE;
529 return OP_LOAD_MEMBASE;
533 g_assert (cfg->generic_sharing_context);
534 g_assert (mini_type_var_is_vt (cfg, type));
535 return OP_LOADV_MEMBASE;
537 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
543 mini_type_to_ldind (MonoCompile* cfg, MonoType *type)
545 type = mini_get_underlying_type (cfg, type);
546 if (cfg->generic_sharing_context && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
547 g_assert (mini_type_var_is_vt (cfg, type));
550 return mono_type_to_ldind (type);
556 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
558 type = mini_get_underlying_type (cfg, type);
559 if (cfg->generic_sharing_context && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
560 g_assert (mini_type_var_is_vt (cfg, type));
563 return mono_type_to_stind (type);
567 mono_op_imm_to_op (int opcode)
571 #if SIZEOF_REGISTER == 4
587 #if SIZEOF_REGISTER == 4
593 #if SIZEOF_REGISTER == 4
599 #if SIZEOF_REGISTER == 4
639 #if SIZEOF_REGISTER == 4
645 #if SIZEOF_REGISTER == 4
664 case OP_ICOMPARE_IMM:
666 case OP_LOCALLOC_IMM:
669 printf ("%s\n", mono_inst_name (opcode));
670 g_assert_not_reached ();
676 * mono_decompose_op_imm:
678 * Replace the OP_.._IMM INS with its non IMM variant.
681 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
685 MONO_INST_NEW (cfg, temp, OP_ICONST);
686 temp->inst_c0 = ins->inst_imm;
687 temp->dreg = mono_alloc_ireg (cfg);
688 mono_bblock_insert_before_ins (bb, ins, temp);
689 ins->opcode = mono_op_imm_to_op (ins->opcode);
690 if (ins->opcode == OP_LOCALLOC)
691 ins->sreg1 = temp->dreg;
693 ins->sreg2 = temp->dreg;
695 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
701 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
703 if (vreg >= cfg->vreg_to_inst_len) {
704 MonoInst **tmp = cfg->vreg_to_inst;
705 int size = cfg->vreg_to_inst_len;
707 while (vreg >= cfg->vreg_to_inst_len)
708 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
709 cfg->vreg_to_inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
711 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
713 cfg->vreg_to_inst [vreg] = inst;
716 #define mono_type_is_long(type) (!(type)->byref && ((mono_type_get_underlying_type (type)->type == MONO_TYPE_I8) || (mono_type_get_underlying_type (type)->type == MONO_TYPE_U8)))
717 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
722 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
730 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
733 int num = cfg->num_varinfo;
736 type = mini_get_underlying_type (cfg, type);
738 if ((num + 1) >= cfg->varinfo_count) {
739 int orig_count = cfg->varinfo_count;
740 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
741 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
742 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
743 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
746 cfg->stat_allocate_var++;
748 MONO_INST_NEW (cfg, inst, opcode);
750 inst->inst_vtype = type;
751 inst->klass = mono_class_from_mono_type (type);
752 type_to_eval_stack_type (cfg, type, inst);
753 /* if set to 1 the variable is native */
754 inst->backend.is_pinvoke = 0;
757 if (inst->klass->exception_type)
758 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
760 if (cfg->compute_gc_maps) {
762 mono_mark_vreg_as_mp (cfg, vreg);
764 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (cfg, type)) {
765 inst->flags |= MONO_INST_GC_TRACK;
766 mono_mark_vreg_as_ref (cfg, vreg);
771 cfg->varinfo [num] = inst;
773 MONO_INIT_VARINFO (&cfg->vars [num], num);
774 MONO_VARINFO (cfg, num)->vreg = vreg;
777 set_vreg_to_inst (cfg, vreg, inst);
779 #if SIZEOF_REGISTER == 4
780 if (mono_arch_is_soft_float ()) {
781 regpair = mono_type_is_long (type) || mono_type_is_float (type);
783 regpair = mono_type_is_long (type);
793 * These two cannot be allocated using create_var_for_vreg since that would
794 * put it into the cfg->varinfo array, confusing many parts of the JIT.
798 * Set flags to VOLATILE so SSA skips it.
801 if (cfg->verbose_level >= 4) {
802 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, inst->dreg + 1, inst->dreg + 2);
805 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
806 if (mono_type_is_float (type))
807 inst->flags = MONO_INST_VOLATILE;
810 /* Allocate a dummy MonoInst for the first vreg */
811 MONO_INST_NEW (cfg, tree, OP_LOCAL);
812 tree->dreg = inst->dreg + 1;
813 if (cfg->opt & MONO_OPT_SSA)
814 tree->flags = MONO_INST_VOLATILE;
816 tree->type = STACK_I4;
817 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
818 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
820 set_vreg_to_inst (cfg, inst->dreg + 1, tree);
822 /* Allocate a dummy MonoInst for the second vreg */
823 MONO_INST_NEW (cfg, tree, OP_LOCAL);
824 tree->dreg = inst->dreg + 2;
825 if (cfg->opt & MONO_OPT_SSA)
826 tree->flags = MONO_INST_VOLATILE;
828 tree->type = STACK_I4;
829 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
830 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
832 set_vreg_to_inst (cfg, inst->dreg + 2, tree);
836 if (cfg->verbose_level > 2)
837 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
842 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
845 type = mini_get_underlying_type (cfg, type);
847 if (mono_type_is_long (type))
848 dreg = mono_alloc_dreg (cfg, STACK_I8);
849 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
850 dreg = mono_alloc_dreg (cfg, STACK_R8);
852 /* All the others are unified */
853 dreg = mono_alloc_preg (cfg);
855 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
859 * Transform a MonoInst into a load from the variable of index var_index.
862 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index)
864 memset (dest, 0, sizeof (MonoInst));
865 dest->inst_i0 = cfg->varinfo [var_index];
866 dest->opcode = mini_type_to_ldind (cfg, dest->inst_i0->inst_vtype);
867 type_to_eval_stack_type (cfg, dest->inst_i0->inst_vtype, dest);
868 dest->klass = dest->inst_i0->klass;
872 mini_get_int_to_float_spill_area (MonoCompile *cfg)
875 if (!cfg->iconv_raw_var) {
876 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
877 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
879 return cfg->iconv_raw_var;
888 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
890 if (vreg >= cfg->vreg_is_ref_len) {
891 gboolean *tmp = cfg->vreg_is_ref;
892 int size = cfg->vreg_is_ref_len;
894 while (vreg >= cfg->vreg_is_ref_len)
895 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
896 cfg->vreg_is_ref = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
898 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
900 cfg->vreg_is_ref [vreg] = TRUE;
904 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
906 if (vreg >= cfg->vreg_is_mp_len) {
907 gboolean *tmp = cfg->vreg_is_mp;
908 int size = cfg->vreg_is_mp_len;
910 while (vreg >= cfg->vreg_is_mp_len)
911 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
912 cfg->vreg_is_mp = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
914 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
916 cfg->vreg_is_mp [vreg] = TRUE;
920 type_from_stack_type (MonoInst *ins) {
922 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
923 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
924 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
925 case STACK_R8: return &mono_defaults.double_class->byval_arg;
928 * this if used to be commented without any specific reason, but
929 * it breaks #80235 when commented
932 return &ins->klass->this_arg;
934 return &mono_defaults.object_class->this_arg;
936 /* ins->klass may not be set for ldnull.
937 * Also, if we have a boxed valuetype, we want an object lass,
938 * not the valuetype class
940 if (ins->klass && !ins->klass->valuetype)
941 return &ins->klass->byval_arg;
942 return &mono_defaults.object_class->byval_arg;
943 case STACK_VTYPE: return &ins->klass->byval_arg;
945 g_error ("stack type %d to montype not handled\n", ins->type);
951 mono_type_from_stack_type (MonoInst *ins) {
952 return type_from_stack_type (ins);
956 * mono_add_ins_to_end:
958 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
961 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
966 MONO_ADD_INS (bb, inst);
970 switch (bb->last_ins->opcode) {
984 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
987 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
988 /* Need to insert the ins before the compare */
989 if (bb->code == bb->last_ins) {
990 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
994 if (bb->code->next == bb->last_ins) {
995 /* Only two instructions */
996 opcode = bb->code->opcode;
998 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM) || (opcode == OP_RCOMPARE)) {
1000 mono_bblock_insert_before_ins (bb, bb->code, inst);
1002 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1005 opcode = bb->last_ins->prev->opcode;
1007 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM) || (opcode == OP_RCOMPARE)) {
1009 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1011 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1016 MONO_ADD_INS (bb, inst);
1022 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1024 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1025 MonoJumpInfoBBTable *table;
1027 table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1029 table->table_size = num_blocks;
1031 ji->ip.label = label;
1032 ji->type = MONO_PATCH_INFO_SWITCH;
1033 ji->data.table = table;
1034 ji->next = cfg->patch_info;
1035 cfg->patch_info = ji;
1038 static MonoMethodSignature *
1039 mono_get_array_new_va_signature (int arity)
1041 static GHashTable *sighash;
1042 MonoMethodSignature *res;
1047 sighash = g_hash_table_new (NULL, NULL);
1049 else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1054 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1057 if (ARCH_VARARG_ICALLS)
1058 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1059 res->call_convention = MONO_CALL_VARARG;
1062 res->call_convention = MONO_CALL_C;
1065 res->params [0] = &mono_defaults.int_class->byval_arg;
1066 for (i = 0; i < arity; i++)
1067 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1069 res->ret = &mono_defaults.object_class->byval_arg;
1071 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1078 mono_get_array_new_va_icall (int rank)
1080 MonoMethodSignature *esig;
1081 char icall_name [256];
1083 MonoJitICallInfo *info;
1085 /* Need to register the icall so it gets an icall wrapper */
1086 sprintf (icall_name, "ves_array_new_va_%d", rank);
1089 info = mono_find_jit_icall_by_name (icall_name);
1091 esig = mono_get_array_new_va_signature (rank);
1092 name = g_strdup (icall_name);
1093 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1101 mini_class_is_system_array (MonoClass *klass)
1103 if (klass->parent == mono_defaults.array_class)
1110 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1112 MonoAssembly *assembly = method->klass->image->assembly;
1113 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1115 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1117 if (mono_security_enabled ())
1119 return mono_assembly_has_skip_verification (assembly);
1123 * mini_method_verify:
1125 * Verify the method using the new verfier.
1127 * Returns true if the method is invalid.
1130 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1133 gboolean is_fulltrust;
1134 MonoLoaderError *error;
1136 if (method->verification_success)
1139 if (!mono_verifier_is_enabled_for_method (method))
1142 /*skip verification implies the assembly must be */
1143 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1145 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1147 if ((error = mono_loader_get_last_error ())) {
1149 cfg->exception_type = error->exception_type;
1151 mono_loader_clear_error ();
1153 mono_free_verify_list (res);
1158 for (tmp = res; tmp; tmp = tmp->next) {
1159 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1160 if (info->info.status == MONO_VERIFY_ERROR) {
1162 char *method_name = mono_method_full_name (method, TRUE);
1163 cfg->exception_type = info->exception_type;
1164 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1165 g_free (method_name);
1167 mono_free_verify_list (res);
1170 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1172 char *method_name = mono_method_full_name (method, TRUE);
1173 cfg->exception_type = info->exception_type;
1174 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1175 g_free (method_name);
1177 mono_free_verify_list (res);
1181 mono_free_verify_list (res);
1183 method->verification_success = 1;
1187 /*Returns true if something went wrong*/
1189 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1191 MonoMethod *method_definition = method;
1192 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1194 while (method_definition->is_inflated) {
1195 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1196 method_definition = imethod->declaring;
1199 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1203 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1205 if (!domain_jit_info (domain)->dynamic_code_hash)
1206 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1207 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1210 static MonoJitDynamicMethodInfo*
1211 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1213 MonoJitDynamicMethodInfo *res;
1215 if (domain_jit_info (domain)->dynamic_code_hash)
1216 res = g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1224 GList *active, *inactive;
1229 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1231 MonoMethodVar *v1 = (MonoMethodVar*)a;
1232 MonoMethodVar *v2 = (MonoMethodVar*)b;
1236 else if (v1->interval->range && v2->interval->range)
1237 return v1->interval->range->from - v2->interval->range->from;
1238 else if (v1->interval->range)
1247 #define LSCAN_DEBUG(a) do { a; } while (0)
1249 #define LSCAN_DEBUG(a)
1253 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1255 int i, slot, offset, size;
1260 GList *vars = NULL, *l, *unhandled;
1261 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1264 gboolean reuse_slot;
1266 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1268 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1269 vtype_stack_slots = NULL;
1272 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1273 for (i = 0; i < cfg->num_varinfo; ++i)
1276 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1277 inst = cfg->varinfo [i];
1278 vmv = MONO_VARINFO (cfg, i);
1280 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1283 vars = g_list_prepend (vars, vmv);
1286 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1291 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1292 MonoMethodVar *current = unhandled->data;
1294 if (current->interval->range) {
1295 g_assert (current->interval->range->from >= i);
1296 i = current->interval->range->from;
1303 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1304 MonoMethodVar *current = unhandled->data;
1307 inst = cfg->varinfo [vmv->idx];
1309 t = mono_type_get_underlying_type (inst->inst_vtype);
1310 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (cfg, t))
1313 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1314 * pinvoke wrappers when they call functions returning structures */
1315 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1316 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1321 size = mini_type_stack_size (NULL, t, &ialign);
1324 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1329 if (cfg->disable_reuse_stack_slots)
1332 t = mini_get_underlying_type (cfg, t);
1334 case MONO_TYPE_GENERICINST:
1335 if (!mono_type_generic_inst_is_valuetype (t)) {
1336 slot_info = &scalar_stack_slots [t->type];
1340 case MONO_TYPE_VALUETYPE:
1341 if (!vtype_stack_slots)
1342 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1343 for (i = 0; i < nvtypes; ++i)
1344 if (t->data.klass == vtype_stack_slots [i].vtype)
1347 slot_info = &vtype_stack_slots [i];
1349 g_assert (nvtypes < 256);
1350 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1351 slot_info = &vtype_stack_slots [nvtypes];
1354 if (cfg->disable_reuse_ref_stack_slots)
1361 #if SIZEOF_VOID_P == 4
1366 if (cfg->disable_ref_noref_stack_slot_share) {
1367 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1372 case MONO_TYPE_CLASS:
1373 case MONO_TYPE_OBJECT:
1374 case MONO_TYPE_ARRAY:
1375 case MONO_TYPE_SZARRAY:
1376 case MONO_TYPE_STRING:
1377 /* Share non-float stack slots of the same size */
1378 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1379 if (cfg->disable_reuse_ref_stack_slots)
1384 slot_info = &scalar_stack_slots [t->type];
1388 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1392 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1394 if (!current->interval->range) {
1395 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1399 inst->flags |= MONO_INST_IS_DEAD;
1404 pos = current->interval->range->from;
1406 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1407 if (current->interval->range)
1408 LSCAN_DEBUG (mono_linterval_print (current->interval));
1409 LSCAN_DEBUG (printf ("\n"));
1411 /* Check for intervals in active which expired or inactive */
1413 /* FIXME: Optimize this */
1416 for (l = slot_info->active; l != NULL; l = l->next) {
1417 MonoMethodVar *v = (MonoMethodVar*)l->data;
1419 if (v->interval->last_range->to < pos) {
1420 slot_info->active = g_list_delete_link (slot_info->active, l);
1421 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1422 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1426 else if (!mono_linterval_covers (v->interval, pos)) {
1427 slot_info->inactive = g_list_append (slot_info->inactive, v);
1428 slot_info->active = g_list_delete_link (slot_info->active, l);
1429 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1436 /* Check for intervals in inactive which expired or active */
1438 /* FIXME: Optimize this */
1441 for (l = slot_info->inactive; l != NULL; l = l->next) {
1442 MonoMethodVar *v = (MonoMethodVar*)l->data;
1444 if (v->interval->last_range->to < pos) {
1445 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1446 // FIXME: Enabling this seems to cause impossible to debug crashes
1447 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1448 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1452 else if (mono_linterval_covers (v->interval, pos)) {
1453 slot_info->active = g_list_append (slot_info->active, v);
1454 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1455 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1463 * This also handles the case when the variable is used in an
1464 * exception region, as liveness info is not computed there.
1467 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1470 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1471 if (slot_info->slots) {
1472 slot = GPOINTER_TO_INT (slot_info->slots->data);
1474 slot_info->slots = slot_info->slots->next;
1477 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1479 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1485 static int count = 0;
1488 if (count == atoi (g_getenv ("COUNT3")))
1489 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1490 if (count > atoi (g_getenv ("COUNT3")))
1493 mono_print_ins (inst);
1498 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1500 if (inst->flags & MONO_INST_LMF) {
1501 size = sizeof (MonoLMF);
1502 align = sizeof (mgreg_t);
1509 if (slot == 0xffffff) {
1511 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1512 * efficient copying (and to work around the fact that OP_MEMCPY
1513 * and OP_MEMSET ignores alignment).
1515 if (MONO_TYPE_ISSTRUCT (t)) {
1516 align = MAX (align, sizeof (gpointer));
1517 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1522 offset += align - 1;
1523 offset &= ~(align - 1);
1527 offset += align - 1;
1528 offset &= ~(align - 1);
1533 if (*stack_align == 0)
1534 *stack_align = align;
1537 offsets [vmv->idx] = slot;
1540 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1541 if (scalar_stack_slots [i].active)
1542 g_list_free (scalar_stack_slots [i].active);
1544 for (i = 0; i < nvtypes; ++i) {
1545 if (vtype_stack_slots [i].active)
1546 g_list_free (vtype_stack_slots [i].active);
1549 cfg->stat_locals_stack_size += offset;
1551 *stack_size = offset;
1556 * mono_allocate_stack_slots:
1558 * Allocate stack slots for all non register allocated variables using a
1559 * linear scan algorithm.
1560 * Returns: an array of stack offsets.
1561 * STACK_SIZE is set to the amount of stack space needed.
1562 * STACK_ALIGN is set to the alignment needed by the locals area.
1565 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1567 int i, slot, offset, size;
1572 GList *vars = NULL, *l;
1573 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1576 gboolean reuse_slot;
1578 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1579 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1581 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1582 vtype_stack_slots = NULL;
1585 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1586 for (i = 0; i < cfg->num_varinfo; ++i)
1589 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1590 inst = cfg->varinfo [i];
1591 vmv = MONO_VARINFO (cfg, i);
1593 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1596 vars = g_list_prepend (vars, vmv);
1599 vars = mono_varlist_sort (cfg, vars, 0);
1601 *stack_align = sizeof(mgreg_t);
1602 for (l = vars; l; l = l->next) {
1604 inst = cfg->varinfo [vmv->idx];
1606 t = mono_type_get_underlying_type (inst->inst_vtype);
1607 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (cfg, t))
1610 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1611 * pinvoke wrappers when they call functions returning structures */
1612 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1613 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1617 size = mini_type_stack_size (NULL, t, &ialign);
1620 if (mono_class_from_mono_type (t)->exception_type)
1621 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1623 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1628 if (cfg->disable_reuse_stack_slots)
1631 t = mini_get_underlying_type (cfg, t);
1633 case MONO_TYPE_GENERICINST:
1634 if (!mono_type_generic_inst_is_valuetype (t)) {
1635 slot_info = &scalar_stack_slots [t->type];
1639 case MONO_TYPE_VALUETYPE:
1640 if (!vtype_stack_slots)
1641 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1642 for (i = 0; i < nvtypes; ++i)
1643 if (t->data.klass == vtype_stack_slots [i].vtype)
1646 slot_info = &vtype_stack_slots [i];
1648 g_assert (nvtypes < 256);
1649 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1650 slot_info = &vtype_stack_slots [nvtypes];
1653 if (cfg->disable_reuse_ref_stack_slots)
1660 #if SIZEOF_VOID_P == 4
1665 if (cfg->disable_ref_noref_stack_slot_share) {
1666 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1671 case MONO_TYPE_CLASS:
1672 case MONO_TYPE_OBJECT:
1673 case MONO_TYPE_ARRAY:
1674 case MONO_TYPE_SZARRAY:
1675 case MONO_TYPE_STRING:
1676 /* Share non-float stack slots of the same size */
1677 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1678 if (cfg->disable_reuse_ref_stack_slots)
1682 case MONO_TYPE_MVAR:
1683 slot_info = &scalar_stack_slots [t->type];
1686 slot_info = &scalar_stack_slots [t->type];
1691 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1692 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1694 /* expire old intervals in active */
1695 while (slot_info->active) {
1696 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1698 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1701 //printf ("EXPIR %2d %08x %08x C%d R%d\n", amv->idx, amv->range.first_use.abs_pos, amv->range.last_use.abs_pos, amv->spill_costs, amv->reg);
1703 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1704 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1708 * This also handles the case when the variable is used in an
1709 * exception region, as liveness info is not computed there.
1712 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1715 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1716 if (slot_info->slots) {
1717 slot = GPOINTER_TO_INT (slot_info->slots->data);
1719 slot_info->slots = slot_info->slots->next;
1722 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1727 static int count = 0;
1731 if (count == atoi (g_getenv ("COUNT")))
1732 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1733 if (count > atoi (g_getenv ("COUNT")))
1736 mono_print_ins (inst);
1741 if (inst->flags & MONO_INST_LMF) {
1743 * This variable represents a MonoLMF structure, which has no corresponding
1744 * CLR type, so hard-code its size/alignment.
1746 size = sizeof (MonoLMF);
1747 align = sizeof (mgreg_t);
1754 if (slot == 0xffffff) {
1756 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1757 * efficient copying (and to work around the fact that OP_MEMCPY
1758 * and OP_MEMSET ignores alignment).
1760 if (MONO_TYPE_ISSTRUCT (t)) {
1761 align = MAX (align, sizeof (gpointer));
1762 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1764 * Align the size too so the code generated for passing vtypes in
1765 * registers doesn't overwrite random locals.
1767 size = (size + (align - 1)) & ~(align -1);
1772 offset += align - 1;
1773 offset &= ~(align - 1);
1777 offset += align - 1;
1778 offset &= ~(align - 1);
1783 *stack_align = MAX (*stack_align, align);
1786 offsets [vmv->idx] = slot;
1789 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1790 if (scalar_stack_slots [i].active)
1791 g_list_free (scalar_stack_slots [i].active);
1793 for (i = 0; i < nvtypes; ++i) {
1794 if (vtype_stack_slots [i].active)
1795 g_list_free (vtype_stack_slots [i].active);
1798 cfg->stat_locals_stack_size += offset;
1800 *stack_size = offset;
1807 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1809 g_assert_not_reached ();
1813 #endif /* DISABLE_JIT */
1815 #define EMUL_HIT_SHIFT 3
1816 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1817 /* small hit bitmap cache */
1818 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1819 static short emul_opcode_num = 0;
1820 static short emul_opcode_alloced = 0;
1821 static short *emul_opcode_opcodes;
1822 static MonoJitICallInfo **emul_opcode_map;
1825 mono_find_jit_opcode_emulation (int opcode)
1827 g_assert (opcode >= 0 && opcode <= OP_LAST);
1828 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1830 for (i = 0; i < emul_opcode_num; ++i) {
1831 if (emul_opcode_opcodes [i] == opcode)
1832 return emul_opcode_map [i];
1839 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1841 MonoJitICallInfo *info;
1842 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1844 g_assert (!sig->hasthis);
1845 g_assert (sig->param_count < 3);
1847 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1848 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1850 if (emul_opcode_num >= emul_opcode_alloced) {
1851 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1852 emul_opcode_alloced += incr;
1853 emul_opcode_map = g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1854 emul_opcode_opcodes = g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1856 emul_opcode_map [emul_opcode_num] = info;
1857 emul_opcode_opcodes [emul_opcode_num] = opcode;
1859 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1863 * For JIT icalls implemented in C.
1864 * NAME should be the same as the name of the C function whose address is FUNC.
1865 * If SAVE is TRUE, no wrapper is generated. This is for perf critical icalls which
1866 * can't throw exceptions.
1869 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
1871 MonoMethodSignature *sig;
1874 sig = mono_create_icall_signature (sigstr);
1878 mono_register_jit_icall_full (func, name, sig, save, FALSE, save ? name : NULL);
1881 /* Register a jit icall which doesn't throw exceptions through mono_raise_exception () */
1883 register_icall_noraise (gpointer func, const char *name, const char *sigstr)
1885 MonoMethodSignature *sig;
1888 sig = mono_create_icall_signature (sigstr);
1892 mono_register_jit_icall_full (func, name, sig, TRUE, TRUE, name);
1896 register_dyn_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
1898 MonoMethodSignature *sig;
1901 sig = mono_create_icall_signature (sigstr);
1905 mono_register_jit_icall (func, name, sig, save);
1909 print_dfn (MonoCompile *cfg) {
1916 char *method_name = mono_method_full_name (cfg->method, TRUE);
1917 g_print ("IR code for method %s\n", method_name);
1918 g_free (method_name);
1921 for (i = 0; i < cfg->num_bblocks; ++i) {
1922 bb = cfg->bblocks [i];
1923 /*if (bb->cil_code) {
1924 char* code1, *code2;
1925 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1926 if (bb->last_ins->cil_code)
1927 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1929 code2 = g_strdup ("");
1931 code1 [strlen (code1) - 1] = 0;
1932 code = g_strdup_printf ("%s -> %s", code1, code2);
1936 code = g_strdup ("\n");
1937 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1938 MONO_BB_FOR_EACH_INS (bb, c) {
1939 mono_print_ins_index (-1, c);
1942 g_print ("\tprev:");
1943 for (j = 0; j < bb->in_count; ++j) {
1944 g_print (" BB%d", bb->in_bb [j]->block_num);
1946 g_print ("\t\tsucc:");
1947 for (j = 0; j < bb->out_count; ++j) {
1948 g_print (" BB%d", bb->out_bb [j]->block_num);
1950 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1953 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1956 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1958 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1966 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1968 MONO_ADD_INS (bb, inst);
1972 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1976 bb->code = ins_to_insert;
1978 /* Link with next */
1979 ins_to_insert->next = ins;
1981 ins->prev = ins_to_insert;
1983 if (bb->last_ins == NULL)
1984 bb->last_ins = ins_to_insert;
1986 /* Link with next */
1987 ins_to_insert->next = ins->next;
1989 ins->next->prev = ins_to_insert;
1991 /* Link with previous */
1992 ins->next = ins_to_insert;
1993 ins_to_insert->prev = ins;
1995 if (bb->last_ins == ins)
1996 bb->last_ins = ins_to_insert;
2001 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2006 ins->prev = ins_to_insert;
2007 bb->code = ins_to_insert;
2008 ins_to_insert->next = ins;
2009 if (bb->last_ins == NULL)
2010 bb->last_ins = ins_to_insert;
2012 /* Link with previous */
2014 ins->prev->next = ins_to_insert;
2015 ins_to_insert->prev = ins->prev;
2017 /* Link with next */
2018 ins->prev = ins_to_insert;
2019 ins_to_insert->next = ins;
2021 if (bb->code == ins)
2022 bb->code = ins_to_insert;
2027 * mono_verify_bblock:
2029 * Verify that the next and prev pointers are consistent inside the instructions in BB.
2032 mono_verify_bblock (MonoBasicBlock *bb)
2034 MonoInst *ins, *prev;
2037 for (ins = bb->code; ins; ins = ins->next) {
2038 g_assert (ins->prev == prev);
2042 g_assert (!bb->last_ins->next);
2048 * Perform consistency checks on the JIT data structures and the IR
2051 mono_verify_cfg (MonoCompile *cfg)
2055 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2056 mono_verify_bblock (bb);
2060 mono_destroy_compile (MonoCompile *cfg)
2065 mono_metadata_free_mh (cfg->header);
2066 //mono_mempool_stats (cfg->mempool);
2067 mono_free_loop_info (cfg);
2069 mono_regstate_free (cfg->rs);
2071 g_hash_table_destroy (cfg->spvars);
2073 g_hash_table_destroy (cfg->exvars);
2074 for (l = cfg->headers_to_free; l; l = l->next)
2075 mono_metadata_free_mh (l->data);
2076 g_list_free (cfg->ldstr_list);
2077 g_hash_table_destroy (cfg->token_info_hash);
2078 if (cfg->abs_patches)
2079 g_hash_table_destroy (cfg->abs_patches);
2080 mono_mempool_destroy (cfg->mempool);
2082 mono_debug_free_method (cfg);
2084 g_free (cfg->varinfo);
2086 g_free (cfg->exception_message);
2093 mono_create_tls_get_offset (MonoCompile *cfg, int offset)
2097 if (!MONO_ARCH_HAVE_TLS_GET)
2103 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2104 ins->dreg = mono_alloc_preg (cfg);
2105 ins->inst_offset = offset;
2110 mini_tls_get_supported (MonoCompile *cfg, MonoTlsKey key)
2112 if (!MONO_ARCH_HAVE_TLS_GET)
2115 if (cfg->compile_aot)
2116 return ARCH_HAVE_TLS_GET_REG;
2118 return mini_get_tls_offset (key) != -1;
2122 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
2125 * TLS offsets might be different at AOT time, so load them from a GOT slot and
2126 * use a different opcode.
2128 if (cfg->compile_aot) {
2129 if (MONO_ARCH_HAVE_TLS_GET && ARCH_HAVE_TLS_GET_REG) {
2132 EMIT_NEW_TLS_OFFSETCONST (cfg, c, key);
2133 MONO_INST_NEW (cfg, ins, OP_TLS_GET_REG);
2134 ins->dreg = mono_alloc_preg (cfg);
2135 ins->sreg1 = c->dreg;
2142 return mono_create_tls_get_offset (cfg, mini_get_tls_offset (key));
2146 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2148 return mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
2152 mono_get_domain_intrinsic (MonoCompile* cfg)
2154 return mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
2158 mono_get_thread_intrinsic (MonoCompile* cfg)
2160 return mono_create_tls_get (cfg, TLS_KEY_THREAD);
2164 mono_get_lmf_intrinsic (MonoCompile* cfg)
2166 return mono_create_tls_get (cfg, TLS_KEY_LMF);
2170 mono_get_lmf_addr_intrinsic (MonoCompile* cfg)
2172 return mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
2175 #endif /* !DISABLE_JIT */
2179 mini_tls_key_supported (MonoTlsKey key)
2181 if (!MONO_ARCH_HAVE_TLS_GET)
2184 return mini_get_tls_offset (key) != -1;
2188 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2190 MonoJumpInfo *ji = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2194 ji->data.target = target;
2195 ji->next = cfg->patch_info;
2197 cfg->patch_info = ji;
2201 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
2203 MonoJumpInfo *ji = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2207 ji->relocation = relocation;
2208 ji->data.target = target;
2209 ji->next = cfg->patch_info;
2211 cfg->patch_info = ji;
2215 mono_remove_patch_info (MonoCompile *cfg, int ip)
2217 MonoJumpInfo **ji = &cfg->patch_info;
2220 if ((*ji)->ip.i == ip)
2223 ji = &((*ji)->next);
2228 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2230 ins->inst_offset = native_offset;
2231 g_ptr_array_add (cfg->seq_points, ins);
2233 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2234 bb->last_seq_point = ins;
2239 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2241 MonoDwarfLocListEntry *entry = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2244 g_assert (offset == 0);
2246 entry->is_reg = is_reg;
2248 entry->offset = offset;
2252 if (var == cfg->args [0])
2253 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2254 else if (var == cfg->rgctx_var)
2255 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2261 mono_compile_create_vars (MonoCompile *cfg)
2263 MonoMethodSignature *sig;
2264 MonoMethodHeader *header;
2267 header = cfg->header;
2269 sig = mono_method_signature (cfg->method);
2271 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2272 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2273 /* Inhibit optimizations */
2274 cfg->ret->flags |= MONO_INST_VOLATILE;
2276 if (cfg->verbose_level > 2)
2277 g_print ("creating vars\n");
2279 cfg->args = mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2282 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2284 for (i = 0; i < sig->param_count; ++i) {
2285 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2288 if (cfg->verbose_level > 2) {
2290 printf ("\treturn : ");
2291 mono_print_ins (cfg->ret);
2295 printf ("\tthis: ");
2296 mono_print_ins (cfg->args [0]);
2299 for (i = 0; i < sig->param_count; ++i) {
2300 printf ("\targ [%d]: ", i);
2301 mono_print_ins (cfg->args [i + sig->hasthis]);
2305 cfg->locals_start = cfg->num_varinfo;
2306 cfg->locals = mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2308 if (cfg->verbose_level > 2)
2309 g_print ("creating locals\n");
2311 for (i = 0; i < header->num_locals; ++i)
2312 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2314 if (cfg->verbose_level > 2)
2315 g_print ("locals done\n");
2317 mono_arch_create_vars (cfg);
2319 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2320 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2321 lmf_var->flags |= MONO_INST_VOLATILE;
2322 lmf_var->flags |= MONO_INST_LMF;
2323 cfg->lmf_var = lmf_var;
2328 mono_print_code (MonoCompile *cfg, const char* msg)
2332 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2333 mono_print_bb (bb, msg);
2337 mono_postprocess_patches (MonoCompile *cfg)
2339 MonoJumpInfo *patch_info;
2342 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2343 switch (patch_info->type) {
2344 case MONO_PATCH_INFO_ABS: {
2345 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2348 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2352 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2353 /* for these array methods we currently register the same function pointer
2354 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2355 * will return the incorrect one depending on the order they are registered.
2356 * See tests/test-arr.cs
2358 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2359 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2360 patch_info->data.name = info->name;
2364 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2365 if (cfg->abs_patches) {
2366 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2368 patch_info->type = abs_ji->type;
2369 patch_info->data.target = abs_ji->data.target;
2376 case MONO_PATCH_INFO_SWITCH: {
2378 #if defined(__native_client__) && defined(__native_client_codegen__)
2379 /* This memory will leak. */
2380 /* TODO: can we free this when */
2381 /* making the final jump table? */
2382 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2384 if (cfg->method->dynamic) {
2385 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2387 table = mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2391 for (i = 0; i < patch_info->data.table->table_size; i++) {
2392 /* Might be NULL if the switch is eliminated */
2393 if (patch_info->data.table->table [i]) {
2394 g_assert (patch_info->data.table->table [i]->native_offset);
2395 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2400 patch_info->data.table->table = (MonoBasicBlock**)table;
2403 case MONO_PATCH_INFO_METHOD_JUMP: {
2404 MonoJumpList *jlist;
2405 MonoDomain *domain = cfg->domain;
2406 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2407 #if defined(__native_client__) && defined(__native_client_codegen__)
2408 /* When this jump target gets evaluated, the method */
2409 /* will be installed in the dynamic code section, */
2410 /* not at the location of cfg->native_code. */
2411 ip = nacl_inverse_modify_patch_target (cfg->native_code) + patch_info->ip.i;
2414 mono_domain_lock (domain);
2415 jlist = g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2417 jlist = mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2418 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2420 jlist->list = g_slist_prepend (jlist->list, ip);
2421 mono_domain_unlock (domain);
2432 mono_codegen (MonoCompile *cfg)
2435 int max_epilog_size;
2437 MonoDomain *code_domain;
2439 if (mono_using_xdebug)
2441 * Recent gdb versions have trouble processing symbol files containing
2442 * overlapping address ranges, so allocate all code from the code manager
2443 * of the root domain. (#666152).
2445 code_domain = mono_get_root_domain ();
2447 code_domain = cfg->domain;
2449 #if defined(__native_client_codegen__) && defined(__native_client__)
2452 /* This keeps patch targets from being transformed during
2453 * ordinary method compilation, for local branches and jumps.
2455 nacl_allow_target_modification (FALSE);
2458 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2459 cfg->spill_count = 0;
2460 /* we reuse dfn here */
2461 /* bb->dfn = bb_count++; */
2463 mono_arch_lowering_pass (cfg, bb);
2465 if (cfg->opt & MONO_OPT_PEEPHOLE)
2466 mono_arch_peephole_pass_1 (cfg, bb);
2469 mono_local_regalloc (cfg, bb);
2471 if (cfg->opt & MONO_OPT_PEEPHOLE)
2472 mono_arch_peephole_pass_2 (cfg, bb);
2474 if (cfg->gen_seq_points && !cfg->gen_seq_points_debug_data)
2475 bb_deduplicate_op_il_seq_points (cfg, bb);
2478 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2479 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2481 code = mono_arch_emit_prolog (cfg);
2483 cfg->code_len = code - cfg->native_code;
2484 cfg->prolog_end = cfg->code_len;
2485 cfg->cfa_reg = cfg->cur_cfa_reg;
2486 cfg->cfa_offset = cfg->cur_cfa_offset;
2488 mono_debug_open_method (cfg);
2490 /* emit code all basic blocks */
2491 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2492 bb->native_offset = cfg->code_len;
2493 bb->real_native_offset = cfg->code_len;
2494 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2495 mono_arch_output_basic_block (cfg, bb);
2496 bb->native_length = cfg->code_len - bb->native_offset;
2498 if (bb == cfg->bb_exit) {
2499 cfg->epilog_begin = cfg->code_len;
2500 mono_arch_emit_epilog (cfg);
2501 cfg->epilog_end = cfg->code_len;
2505 #ifdef __native_client_codegen__
2506 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2508 mono_arch_emit_exceptions (cfg);
2510 max_epilog_size = 0;
2512 /* we always allocate code in cfg->domain->code_mp to increase locality */
2513 cfg->code_size = cfg->code_len + max_epilog_size;
2514 #ifdef __native_client_codegen__
2515 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
2517 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2519 if (cfg->method->dynamic) {
2520 guint unwindlen = 0;
2521 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2522 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2524 /* Allocate the code into a separate memory pool so it can be freed */
2525 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2526 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2527 mono_domain_lock (cfg->domain);
2528 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2529 mono_domain_unlock (cfg->domain);
2531 if (mono_using_xdebug)
2532 /* See the comment for cfg->code_domain */
2533 code = mono_domain_code_reserve (code_domain, cfg->code_size + unwindlen);
2535 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + unwindlen);
2537 guint unwindlen = 0;
2538 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2539 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2541 code = mono_domain_code_reserve (code_domain, cfg->code_size + unwindlen);
2543 #if defined(__native_client_codegen__) && defined(__native_client__)
2544 nacl_allow_target_modification (TRUE);
2548 memcpy (code, cfg->native_code, cfg->code_len);
2549 #if defined(__default_codegen__)
2550 g_free (cfg->native_code);
2551 #elif defined(__native_client_codegen__)
2552 if (cfg->native_code_alloc) {
2553 g_free (cfg->native_code_alloc);
2554 cfg->native_code_alloc = 0;
2556 else if (cfg->native_code) {
2557 g_free (cfg->native_code);
2559 #endif /* __native_client_codegen__ */
2560 cfg->native_code = code;
2561 code = cfg->native_code + cfg->code_len;
2563 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2564 mono_postprocess_patches (cfg);
2566 #ifdef VALGRIND_JIT_REGISTER_MAP
2567 if (valgrind_register){
2568 char* nm = mono_method_full_name (cfg->method, TRUE);
2569 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2574 if (cfg->verbose_level > 0) {
2575 char* nm = mono_method_full_name (cfg->method, TRUE);
2576 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2578 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2583 gboolean is_generic = FALSE;
2585 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2586 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
2590 if (cfg->generic_sharing_context)
2591 g_assert (is_generic);
2594 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2595 mono_arch_save_unwind_info (cfg);
2598 #if defined(__native_client_codegen__) && defined(__native_client__)
2599 if (!cfg->compile_aot) {
2600 if (cfg->method->dynamic) {
2601 code_dest = nacl_code_manager_get_code_dest(cfg->dynamic_info->code_mp, cfg->native_code);
2603 code_dest = nacl_domain_get_code_dest(cfg->domain, cfg->native_code);
2608 #if defined(__native_client_codegen__)
2609 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2612 mono_arch_patch_code (cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->dynamic_info ? cfg->dynamic_info->code_mp : NULL, cfg->run_cctors);
2614 if (cfg->method->dynamic) {
2615 if (mono_using_xdebug)
2616 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2618 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2620 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2622 #if defined(__native_client_codegen__) && defined(__native_client__)
2623 cfg->native_code = code_dest;
2625 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2627 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2629 mono_debug_close_method (cfg);
2631 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2632 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2637 compute_reachable (MonoBasicBlock *bb)
2641 if (!(bb->flags & BB_VISITED)) {
2642 bb->flags |= BB_VISITED;
2643 for (i = 0; i < bb->out_count; ++i)
2644 compute_reachable (bb->out_bb [i]);
2649 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2652 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2653 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2655 MONO_INST_NEW (cfg, ins, OP_BR);
2656 MONO_ADD_INS (bb, ins);
2657 ins->inst_target_bb = bb->next_bb;
2662 #endif /* #ifndef DISABLE_JIT */
2665 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
2667 MonoDomain *domain = mono_get_root_domain ();
2672 if (info->uw_info) {
2673 uw_info = info->uw_info;
2674 info_len = info->uw_info_len;
2676 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
2679 jinfo = mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
2680 jinfo->d.method = wrapper;
2681 jinfo->code_start = info->code;
2682 jinfo->code_size = info->code_size;
2683 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
2694 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2697 MonoMethodHeader *header;
2699 MonoJitInfoFlags flags = JIT_INFO_NONE;
2700 int num_clauses, num_holes = 0;
2701 guint32 stack_size = 0;
2703 g_assert (method_to_compile == cfg->method);
2704 header = cfg->header;
2706 if (cfg->generic_sharing_context)
2707 flags |= JIT_INFO_HAS_GENERIC_JIT_INFO;
2709 if (cfg->arch_eh_jit_info) {
2710 MonoJitArgumentInfo *arg_info;
2711 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2714 * This cannot be computed during stack walking, as
2715 * mono_arch_get_argument_info () is not signal safe.
2717 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2718 stack_size = mono_arch_get_argument_info (cfg->generic_sharing_context, sig, sig->param_count, arg_info);
2721 flags |= JIT_INFO_HAS_ARCH_EH_INFO;
2724 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2725 flags |= JIT_INFO_HAS_ARCH_EH_INFO;
2727 if (cfg->try_block_holes) {
2728 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2729 TryBlockHole *hole = tmp->data;
2730 MonoExceptionClause *ec = hole->clause;
2731 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2732 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2733 g_assert (clause_last_bb);
2735 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2736 if (clause_last_bb->native_offset != hole_end)
2740 flags |= JIT_INFO_HAS_TRY_BLOCK_HOLES;
2741 if (G_UNLIKELY (cfg->verbose_level >= 4))
2742 printf ("Number of try block holes %d\n", num_holes);
2745 if (mono_security_method_has_declsec (cfg->method_to_register))
2746 flags |= JIT_INFO_HAS_ARCH_EH_INFO;
2748 if (COMPILE_LLVM (cfg))
2749 num_clauses = cfg->llvm_ex_info_len;
2751 num_clauses = header->num_clauses;
2753 if (cfg->method->dynamic)
2754 jinfo = g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2756 jinfo = mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2757 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2758 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2760 if (COMPILE_LLVM (cfg))
2761 jinfo->from_llvm = TRUE;
2763 if (cfg->generic_sharing_context) {
2765 MonoGenericJitInfo *gi;
2766 GSList *loclist = NULL;
2768 gi = mono_jit_info_get_generic_jit_info (jinfo);
2771 if (cfg->method->dynamic)
2772 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2774 gi->generic_sharing_context = mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2775 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2777 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2778 mini_method_get_context (method_to_compile)->method_inst ||
2779 method_to_compile->klass->valuetype) {
2780 g_assert (cfg->rgctx_var);
2785 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2786 mini_method_get_context (method_to_compile)->method_inst ||
2787 method_to_compile->klass->valuetype) {
2788 inst = cfg->rgctx_var;
2789 if (!COMPILE_LLVM (cfg))
2790 g_assert (inst->opcode == OP_REGOFFSET);
2791 loclist = cfg->rgctx_loclist;
2793 inst = cfg->args [0];
2794 loclist = cfg->this_loclist;
2798 /* Needed to handle async exceptions */
2802 gi->nlocs = g_slist_length (loclist);
2803 if (cfg->method->dynamic)
2804 gi->locations = g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2806 gi->locations = mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2808 for (l = loclist; l; l = l->next) {
2809 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2814 if (COMPILE_LLVM (cfg)) {
2815 g_assert (cfg->llvm_this_reg != -1);
2816 gi->this_in_reg = 0;
2817 gi->this_reg = cfg->llvm_this_reg;
2818 gi->this_offset = cfg->llvm_this_offset;
2819 } else if (inst->opcode == OP_REGVAR) {
2820 gi->this_in_reg = 1;
2821 gi->this_reg = inst->dreg;
2823 g_assert (inst->opcode == OP_REGOFFSET);
2825 g_assert (inst->inst_basereg == X86_EBP);
2826 #elif defined(TARGET_AMD64)
2827 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2829 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2831 gi->this_in_reg = 0;
2832 gi->this_reg = inst->inst_basereg;
2833 gi->this_offset = inst->inst_offset;
2838 MonoTryBlockHoleTableJitInfo *table;
2841 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2842 table->num_holes = (guint16)num_holes;
2844 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2845 guint32 start_bb_offset;
2846 MonoTryBlockHoleJitInfo *hole;
2847 TryBlockHole *hole_data = tmp->data;
2848 MonoExceptionClause *ec = hole_data->clause;
2849 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2850 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2851 g_assert (clause_last_bb);
2853 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2854 if (clause_last_bb->native_offset == hole_end)
2857 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2858 hole = &table->holes [i++];
2859 hole->clause = hole_data->clause - &header->clauses [0];
2860 hole->offset = (guint32)hole_data->start_offset;
2861 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2863 if (G_UNLIKELY (cfg->verbose_level >= 4))
2864 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2866 g_assert (i == num_holes);
2869 if (jinfo->has_arch_eh_info) {
2870 MonoArchEHJitInfo *info;
2872 info = mono_jit_info_get_arch_eh_info (jinfo);
2874 info->stack_size = stack_size;
2877 if (COMPILE_LLVM (cfg)) {
2879 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2880 } else if (header->num_clauses) {
2883 for (i = 0; i < header->num_clauses; i++) {
2884 MonoExceptionClause *ec = &header->clauses [i];
2885 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2886 MonoBasicBlock *tblock;
2887 MonoInst *exvar, *spvar;
2889 ei->flags = ec->flags;
2892 * The spvars are needed by mono_arch_install_handler_block_guard ().
2894 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2897 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2898 spvar = mono_find_spvar_for_region (cfg, region);
2900 ei->exvar_offset = spvar->inst_offset;
2902 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2903 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2906 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2907 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2909 ei->data.filter = cfg->native_code + tblock->native_offset;
2911 ei->data.catch_class = ec->data.catch_class;
2914 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2916 g_assert (tblock->native_offset);
2917 ei->try_start = cfg->native_code + tblock->native_offset;
2918 if (tblock->extend_try_block) {
2920 * Extend the try block backwards to include parts of the previous call
2923 ei->try_start = (guint8*)ei->try_start - MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
2925 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2927 if (!tblock->native_offset) {
2929 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2930 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2931 if (bb && bb->native_offset) {
2937 ei->try_end = cfg->native_code + tblock->native_offset;
2938 g_assert (tblock->native_offset);
2939 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2941 ei->handler_start = cfg->native_code + tblock->native_offset;
2943 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2944 TryBlockHole *hole = tmp->data;
2945 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2946 if (hole->clause == ec && hole_end == ei->try_end) {
2947 if (G_UNLIKELY (cfg->verbose_level >= 4))
2948 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2950 ei->try_end = cfg->native_code + hole->start_offset;
2955 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2957 if (ec->handler_offset + ec->handler_len < header->code_size) {
2958 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2959 if (tblock->native_offset) {
2960 end_offset = tblock->native_offset;
2964 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2965 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2966 if (bb && bb->native_offset) {
2971 end_offset = tblock->native_offset + tblock->native_length;
2974 end_offset = cfg->epilog_begin;
2976 ei->data.handler_end = cfg->native_code + end_offset;
2981 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2983 for (i = 0; i < jinfo->num_clauses; i++) {
2984 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2985 int start = (guint8*)ei->try_start - cfg->native_code;
2986 int end = (guint8*)ei->try_end - cfg->native_code;
2987 int handler = (guint8*)ei->handler_start - cfg->native_code;
2988 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2990 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2994 if (cfg->encoded_unwind_ops) {
2995 /* Generated by LLVM */
2996 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2997 g_free (cfg->encoded_unwind_ops);
2998 } else if (cfg->unwind_ops) {
3000 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
3001 guint32 unwind_desc;
3003 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
3005 if (cfg->has_unwind_info_for_epilog) {
3006 MonoArchEHJitInfo *info;
3008 info = mono_jit_info_get_arch_eh_info (jinfo);
3010 info->epilog_size = cfg->code_len - cfg->epilog_begin;
3012 jinfo->unwind_info = unwind_desc;
3013 g_free (unwind_info);
3015 jinfo->unwind_info = cfg->used_int_regs;
3023 is_gsharedvt_type (MonoType *t)
3025 return (t->type == MONO_TYPE_VAR || t->type == MONO_TYPE_MVAR) && t->data.generic_param->gshared_constraint == MONO_TYPE_VALUETYPE;
3028 /* Return whenever METHOD is a gsharedvt method */
3030 is_gsharedvt_method (MonoMethod *method)
3032 MonoGenericContext *context;
3033 MonoGenericInst *inst;
3036 if (!method->is_inflated)
3038 context = mono_method_get_context (method);
3039 inst = context->class_inst;
3041 for (i = 0; i < inst->type_argc; ++i)
3042 if (is_gsharedvt_type (inst->type_argv [i]))
3045 inst = context->method_inst;
3047 for (i = 0; i < inst->type_argc; ++i)
3048 if (is_gsharedvt_type (inst->type_argv [i]))
3055 is_open_method (MonoMethod *method)
3057 MonoGenericContext *context;
3059 if (!method->is_inflated)
3061 context = mono_method_get_context (method);
3062 if (context->class_inst && context->class_inst->is_open)
3064 if (context->method_inst && context->method_inst->is_open)
3071 * mini_method_compile:
3072 * @method: the method to compile
3073 * @opts: the optimization flags to use
3074 * @domain: the domain where the method will be compiled in
3075 * @flags: compilation flags
3076 * @parts: debug flag
3078 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3079 * field in the returned struct to see if compilation succeded.
3082 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts)
3084 MonoMethodHeader *header;
3085 MonoMethodSignature *sig;
3089 int dfn, i, code_size_ratio;
3091 gboolean deadce_has_run = FALSE;
3093 gboolean try_generic_shared, try_llvm = FALSE;
3094 MonoMethod *method_to_compile, *method_to_register;
3095 gboolean method_is_gshared = FALSE;
3096 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3097 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3098 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3100 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3102 static gboolean verbose_method_inited;
3103 static const char *verbose_method_name;
3105 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3106 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3107 mono_profiler_method_jit (method);
3108 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3109 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3113 * We might get passed the original generic method definition or
3114 * instances with type parameters.
3115 * FIXME: Remove the method->klass->generic_class limitation.
3117 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3118 (opts & MONO_OPT_GSHARED) && ((method->is_generic || method->klass->generic_container) || (!method->klass->generic_class && mono_method_is_generic_sharable_full (method, TRUE, FALSE, FALSE)));
3120 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3121 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3124 if (try_generic_shared && !mono_debug_count ())
3125 try_generic_shared = FALSE;
3128 if (opts & MONO_OPT_GSHARED) {
3129 if (try_generic_shared)
3130 mono_stats.generics_sharable_methods++;
3131 else if (mono_method_is_generic_impl (method))
3132 mono_stats.generics_unsharable_methods++;
3135 if (mini_is_gsharedvt_sharable_method (method)) {
3136 if (!mono_debug_count ())
3137 try_generic_shared = FALSE;
3139 try_generic_shared = FALSE;
3142 if (is_gsharedvt_method (method) || (compile_aot && is_open_method (method))) {
3143 /* We are AOTing a gshared method directly */
3144 method_is_gshared = TRUE;
3145 g_assert (compile_aot);
3146 try_generic_shared = TRUE;
3150 try_llvm = mono_use_llvm || llvm;
3154 if (method_is_gshared) {
3155 method_to_compile = method;
3157 if (try_generic_shared) {
3158 method_to_compile = mini_get_shared_method (method);
3159 g_assert (method_to_compile);
3161 method_to_compile = method;
3165 cfg = g_new0 (MonoCompile, 1);
3166 cfg->method = method_to_compile;
3167 cfg->header = mono_method_get_header (cfg->method);
3168 cfg->mempool = mono_mempool_new ();
3170 cfg->prof_options = mono_profiler_get_events ();
3171 cfg->run_cctors = run_cctors;
3172 cfg->domain = domain;
3173 cfg->verbose_level = mini_verbose;
3174 cfg->compile_aot = compile_aot;
3175 cfg->full_aot = full_aot;
3176 cfg->skip_visibility = method->skip_visibility;
3177 cfg->orig_method = method;
3178 cfg->gen_seq_points = debug_options.gen_seq_points_compact_data || debug_options.gen_seq_points_debug_data;
3179 cfg->gen_seq_points_debug_data = debug_options.gen_seq_points_debug_data;
3181 cfg->explicit_null_checks = debug_options.explicit_null_checks;
3182 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3183 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3184 if (try_generic_shared)
3185 cfg->generic_sharing_context = (MonoGenericSharingContext*)&cfg->gsctx;
3186 cfg->compile_llvm = try_llvm;
3187 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3189 if (!mono_debug_count ())
3190 cfg->opt &= ~MONO_OPT_FLOAT32;
3191 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3192 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3194 if (cfg->gen_seq_points)
3195 cfg->seq_points = g_ptr_array_new ();
3196 mono_error_init (&cfg->error);
3198 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container || method_is_gshared)) {
3199 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3203 if (cfg->generic_sharing_context && (mini_is_gsharedvt_sharable_method (method) || method_is_gshared)) {
3204 MonoMethodInflated *inflated;
3205 MonoGenericContext *context;
3207 if (method_is_gshared) {
3208 g_assert (method->is_inflated);
3209 inflated = (MonoMethodInflated*)method;
3210 context = &inflated->context;
3212 /* We are compiling a gsharedvt method directly */
3213 g_assert (compile_aot);
3215 g_assert (method_to_compile->is_inflated);
3216 inflated = (MonoMethodInflated*)method_to_compile;
3217 context = &inflated->context;
3220 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3221 cfg->gsctx_context = context;
3223 cfg->gsharedvt = TRUE;
3225 cfg->disable_llvm = TRUE;
3228 if (cfg->generic_sharing_context) {
3229 method_to_register = method_to_compile;
3230 cfg->gshared = TRUE;
3232 g_assert (method == method_to_compile);
3233 method_to_register = method;
3235 cfg->method_to_register = method_to_register;
3237 mono_error_init (&err);
3238 sig = mono_method_signature_checked (cfg->method, &err);
3240 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3241 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3242 mono_error_cleanup (&err);
3243 if (MONO_METHOD_COMPILE_END_ENABLED ())
3244 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3248 header = cfg->header;
3250 MonoLoaderError *error;
3252 if ((error = mono_loader_get_last_error ())) {
3253 cfg->exception_type = error->exception_type;
3255 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
3256 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
3258 if (MONO_METHOD_COMPILE_END_ENABLED ())
3259 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3265 static gboolean inited;
3271 * Check for methods which cannot be compiled by LLVM early, to avoid
3272 * the extra compilation pass.
3274 if (COMPILE_LLVM (cfg)) {
3275 mono_llvm_check_method_supported (cfg);
3276 if (cfg->disable_llvm) {
3277 if (cfg->verbose_level >= 1) {
3278 //nm = mono_method_full_name (cfg->method, TRUE);
3279 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3282 mono_destroy_compile (cfg);
3284 goto restart_compile;
3290 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3291 if (debug_options.mdb_optimizations) {
3292 cfg->disable_reuse_registers = TRUE;
3293 cfg->disable_reuse_stack_slots = TRUE;
3295 * This decreases the change the debugger will read registers/stack slots which are
3296 * not yet initialized.
3298 cfg->disable_initlocals_opt = TRUE;
3300 cfg->extend_live_ranges = TRUE;
3302 /* Temporarily disable this when running in the debugger until we have support
3303 * for this in the debugger. */
3304 /* This is no longer needed with sdb */
3305 //cfg->disable_omit_fp = TRUE;
3307 /* The debugger needs all locals to be on the stack or in a global register */
3308 cfg->disable_vreg_to_lvreg = TRUE;
3310 /* Don't remove unused variables when running inside the debugger since the user
3311 * may still want to view them. */
3312 cfg->disable_deadce_vars = TRUE;
3314 // cfg->opt |= MONO_OPT_SHARED;
3315 cfg->opt &= ~MONO_OPT_DEADCE;
3316 cfg->opt &= ~MONO_OPT_INLINE;
3317 cfg->opt &= ~MONO_OPT_COPYPROP;
3318 cfg->opt &= ~MONO_OPT_CONSPROP;
3319 /* This is no longer needed with sdb */
3320 //cfg->opt &= ~MONO_OPT_GSHARED;
3322 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3323 cfg->disable_out_of_line_bblocks = TRUE;
3326 if (mono_using_xdebug) {
3328 * Make each variable use its own register/stack slot and extend
3329 * their liveness to cover the whole method, making them displayable
3330 * in gdb even after they are dead.
3332 cfg->disable_reuse_registers = TRUE;
3333 cfg->disable_reuse_stack_slots = TRUE;
3334 cfg->extend_live_ranges = TRUE;
3335 cfg->compute_precise_live_ranges = TRUE;
3338 mini_gc_init_cfg (cfg);
3340 if (COMPILE_LLVM (cfg)) {
3341 cfg->opt |= MONO_OPT_ABCREM;
3344 if (!verbose_method_inited) {
3345 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3346 verbose_method_inited = TRUE;
3348 if (verbose_method_name) {
3349 const char *name = verbose_method_name;
3351 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3352 MonoMethodDesc *desc;
3354 desc = mono_method_desc_new (name, TRUE);
3355 if (mono_method_desc_full_match (desc, cfg->method)) {
3356 cfg->verbose_level = 4;
3358 mono_method_desc_free (desc);
3360 if (strcmp (cfg->method->name, name) == 0)
3361 cfg->verbose_level = 4;
3365 ip = (guint8 *)header->code;
3367 cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3369 if (cfg->verbose_level > 0) {
3372 method_name = mono_method_full_name (method, TRUE);
3373 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->generic_sharing_context && !cfg->gsharedvt) ? "gshared " : "", method_name);
3375 if (COMPILE_LLVM (cfg))
3376 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3377 else if (cfg->gsharedvt)
3378 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3379 else if (cfg->generic_sharing_context)
3380 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3382 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3384 g_free (method_name);
3387 if (cfg->opt & (MONO_OPT_ABCREM | MONO_OPT_SSAPRE))
3388 cfg->opt |= MONO_OPT_SSA;
3391 if ((cfg->method->klass->image != mono_defaults.corlib) || (strstr (cfg->method->klass->name, "StackOverflowException") && strstr (cfg->method->name, ".ctor")) || (strstr (cfg->method->klass->name, "OutOfMemoryException") && strstr (cfg->method->name, ".ctor")))
3392 cfg->globalra = TRUE;
3395 //cfg->globalra = TRUE;
3397 //if (!strcmp (cfg->method->klass->name, "Tests") && !cfg->method->wrapper_type)
3398 // cfg->globalra = TRUE;
3401 static int count = 0;
3405 if (g_getenv ("COUNT2")) {
3406 cfg->globalra = TRUE;
3407 if (count == atoi (g_getenv ("COUNT2")))
3408 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
3409 if (count > atoi (g_getenv ("COUNT2")))
3410 cfg->globalra = FALSE;
3415 if (header->clauses)
3416 cfg->globalra = FALSE;
3418 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)
3419 /* The code in the prolog clobbers caller saved registers */
3420 cfg->globalra = FALSE;
3422 // FIXME: Disable globalra in case of tracing/profiling
3424 if (cfg->method->save_lmf)
3425 /* The LMF saving code might clobber caller saved registers */
3426 cfg->globalra = FALSE;
3428 if (header->code_size > 5000)
3430 /* Too large bblocks could overflow the ins positions */
3431 cfg->globalra = FALSE;
3433 cfg->rs = mono_regstate_new ();
3435 cfg->rs->next_vreg = MONO_MAX_IREGS + MONO_MAX_FREGS;
3436 cfg->next_vreg = cfg->rs->next_vreg;
3438 /* FIXME: Fix SSA to handle branches inside bblocks */
3439 if (cfg->opt & MONO_OPT_SSA)
3440 cfg->enable_extended_bblocks = FALSE;
3443 * FIXME: This confuses liveness analysis because variables which are assigned after
3444 * a branch inside a bblock become part of the kill set, even though the assignment
3445 * might not get executed. This causes the optimize_initlocals pass to delete some
3446 * assignments which are needed.
3447 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3450 //cfg->enable_extended_bblocks = TRUE;
3452 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3453 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3454 if (mini_get_debug_options ()->break_on_unverified)
3460 * create MonoInst* which represents arguments and local variables
3462 mono_compile_create_vars (cfg);
3464 /* SSAPRE is not supported on linear IR */
3465 cfg->opt &= ~MONO_OPT_SSAPRE;
3467 i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, 0, FALSE);
3470 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3472 if (MONO_METHOD_COMPILE_END_ENABLED ())
3473 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3476 mono_destroy_compile (cfg);
3477 try_generic_shared = FALSE;
3478 goto restart_compile;
3480 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3482 if (MONO_METHOD_COMPILE_END_ENABLED ())
3483 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3484 /* cfg contains the details of the failure, so let the caller cleanup */
3488 cfg->stat_basic_blocks += cfg->num_bblocks;
3490 if (COMPILE_LLVM (cfg)) {
3493 /* The IR has to be in SSA form for LLVM */
3494 cfg->opt |= MONO_OPT_SSA;
3498 // Allow SSA on the result value
3499 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3501 // Add an explicit return instruction referencing the return value
3502 MONO_INST_NEW (cfg, ins, OP_SETRET);
3503 ins->sreg1 = cfg->ret->dreg;
3505 MONO_ADD_INS (cfg->bb_exit, ins);
3508 cfg->opt &= ~MONO_OPT_LINEARS;
3511 cfg->opt &= ~MONO_OPT_BRANCH;
3514 /* todo: remove code when we have verified that the liveness for try/catch blocks
3518 * Currently, this can't be commented out since exception blocks are not
3519 * processed during liveness analysis.
3520 * It is also needed, because otherwise the local optimization passes would
3521 * delete assignments in cases like this:
3523 * <something which throws>
3525 * This also allows SSA to be run on methods containing exception clauses, since
3526 * SSA will ignore variables marked VOLATILE.
3528 mono_liveness_handle_exception_clauses (cfg);
3530 mono_handle_out_of_line_bblock (cfg);
3532 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3534 if (!COMPILE_LLVM (cfg))
3535 mono_decompose_long_opts (cfg);
3537 /* Should be done before branch opts */
3538 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
3539 mono_local_cprop (cfg);
3541 if (cfg->opt & MONO_OPT_BRANCH)
3542 mono_optimize_branches (cfg);
3544 /* This must be done _before_ global reg alloc and _after_ decompose */
3545 mono_handle_global_vregs (cfg);
3546 if (cfg->opt & MONO_OPT_DEADCE)
3547 mono_local_deadce (cfg);
3548 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS)
3549 mono_local_alias_analysis (cfg);
3550 /* Disable this for LLVM to make the IR easier to handle */
3551 if (!COMPILE_LLVM (cfg))
3552 mono_if_conversion (cfg);
3554 if ((cfg->opt & MONO_OPT_SSAPRE) || cfg->globalra)
3555 mono_remove_critical_edges (cfg);
3557 /* Depth-first ordering on basic blocks */
3558 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
3560 cfg->max_block_num = cfg->num_bblocks;
3563 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
3564 if (cfg->num_bblocks != dfn + 1) {
3567 cfg->num_bblocks = dfn + 1;
3569 /* remove unreachable code, because the code in them may be
3570 * inconsistent (access to dead variables for example) */
3571 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3572 bb->flags &= ~BB_VISITED;
3573 compute_reachable (cfg->bb_entry);
3574 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3575 if (bb->flags & BB_EXCEPTION_HANDLER)
3576 compute_reachable (bb);
3577 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3578 if (!(bb->flags & BB_VISITED)) {
3579 if (cfg->verbose_level > 1)
3580 g_print ("found unreachable code in BB%d\n", bb->block_num);
3581 bb->code = bb->last_ins = NULL;
3582 while (bb->out_count)
3583 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
3586 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3587 bb->flags &= ~BB_VISITED;
3590 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3592 * we disable some optimizations if there are too many variables
3593 * because JIT time may become too expensive. The actual number needs
3594 * to be tweaked and eventually the non-linear algorithms should be fixed.
3596 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3597 cfg->disable_ssa = TRUE;
3600 if (cfg->opt & MONO_OPT_LOOP) {
3601 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
3602 mono_compute_natural_loops (cfg);
3605 /* after method_to_ir */
3607 if (MONO_METHOD_COMPILE_END_ENABLED ())
3608 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3613 if (header->num_clauses)
3614 cfg->disable_ssa = TRUE;
3617 //#define DEBUGSSA "logic_run"
3618 //#define DEBUGSSA_CLASS "Tests"
3621 if (!cfg->disable_ssa) {
3622 mono_local_cprop (cfg);
3625 mono_ssa_compute (cfg);
3629 if (cfg->opt & MONO_OPT_SSA) {
3630 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3632 mono_ssa_compute (cfg);
3635 if (cfg->verbose_level >= 2) {
3642 /* after SSA translation */
3644 if (MONO_METHOD_COMPILE_END_ENABLED ())
3645 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3649 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3650 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3652 mono_ssa_cprop (cfg);
3658 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3659 //mono_ssa_strength_reduction (cfg);
3661 if (cfg->opt & MONO_OPT_SSAPRE) {
3662 mono_perform_ssapre (cfg);
3663 //mono_local_cprop (cfg);
3666 if (cfg->opt & MONO_OPT_DEADCE) {
3667 mono_ssa_deadce (cfg);
3668 deadce_has_run = TRUE;
3671 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
3672 mono_perform_abc_removal (cfg);
3674 mono_ssa_remove (cfg);
3675 mono_local_cprop (cfg);
3676 mono_handle_global_vregs (cfg);
3677 if (cfg->opt & MONO_OPT_DEADCE)
3678 mono_local_deadce (cfg);
3680 if (cfg->opt & MONO_OPT_BRANCH) {
3683 mono_optimize_branches (cfg);
3685 /* Have to recompute cfg->bblocks and bb->dfn */
3686 if (cfg->globalra) {
3687 mono_remove_critical_edges (cfg);
3689 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3692 /* Depth-first ordering on basic blocks */
3693 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
3696 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
3697 cfg->num_bblocks = dfn + 1;
3703 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3704 mono_ssa_loop_invariant_code_motion (cfg);
3705 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3706 if (cfg->opt & MONO_OPT_ABCREM)
3707 mono_perform_abc_removal (cfg);
3710 /* after SSA removal */
3712 if (MONO_METHOD_COMPILE_END_ENABLED ())
3713 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3717 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3718 if (COMPILE_SOFT_FLOAT (cfg))
3719 mono_decompose_soft_float (cfg);
3721 if (COMPILE_LLVM (cfg))
3722 mono_decompose_vtype_opts_llvm (cfg);
3724 mono_decompose_vtype_opts (cfg);
3725 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3726 mono_decompose_array_access_opts (cfg);
3729 #ifndef MONO_ARCH_GOT_REG
3734 g_assert (cfg->got_var_allocated);
3737 * Allways allocate the GOT var to a register, because keeping it
3738 * in memory will increase the number of live temporaries in some
3739 * code created by inssel.brg, leading to the well known spills+
3740 * branches problem. Testcase: mcs crash in
3741 * System.MonoCustomAttrs:GetCustomAttributes.
3743 #ifdef MONO_ARCH_GOT_REG
3744 got_reg = MONO_ARCH_GOT_REG;
3746 regs = mono_arch_get_global_int_regs (cfg);
3748 got_reg = GPOINTER_TO_INT (regs->data);
3751 cfg->got_var->opcode = OP_REGVAR;
3752 cfg->got_var->dreg = got_reg;
3753 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3757 * Have to call this again to process variables added since the first call.
3759 mono_liveness_handle_exception_clauses (cfg);
3761 if (cfg->globalra) {
3764 /* Have to do this before regalloc since it can create vregs */
3765 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3766 mono_arch_lowering_pass (cfg, bb);
3768 mono_global_regalloc (cfg);
3771 if ((cfg->opt & MONO_OPT_LINEARS) && !cfg->globalra) {
3772 GList *vars, *regs, *l;
3774 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3775 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3776 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3777 mono_analyze_liveness (cfg);
3779 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3780 regs = mono_arch_get_global_int_regs (cfg);
3781 /* Remove the reg reserved for holding the GOT address */
3783 for (l = regs; l; l = l->next) {
3784 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3785 regs = g_list_delete_link (regs, l);
3790 mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
3794 //mono_print_code (cfg, "");
3798 /* variables are allocated after decompose, since decompose could create temps */
3799 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
3800 mono_arch_allocate_vars (cfg);
3801 if (cfg->exception_type)
3807 gboolean need_local_opts;
3809 if (!cfg->globalra && !COMPILE_LLVM (cfg)) {
3810 mono_spill_global_vars (cfg, &need_local_opts);
3812 if (need_local_opts || cfg->compile_aot) {
3813 /* To optimize code created by spill_global_vars */
3814 mono_local_cprop (cfg);
3815 if (cfg->opt & MONO_OPT_DEADCE)
3816 mono_local_deadce (cfg);
3820 /* Add branches between non-consecutive bblocks */
3821 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3822 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3823 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3824 /* we are careful when inverting, since bugs like #59580
3825 * could show up when dealing with NaNs.
3827 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3828 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3829 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3830 bb->last_ins->inst_false_bb = tmp;
3832 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3834 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3835 inst->opcode = OP_BR;
3836 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3837 mono_bblock_add_inst (bb, inst);
3842 if (cfg->verbose_level >= 4 && !cfg->globalra) {
3843 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3844 MonoInst *tree = bb->code;
3845 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3848 for (; tree; tree = tree->next) {
3849 mono_print_ins_index (-1, tree);
3855 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3856 bb->max_vreg = cfg->next_vreg;
3860 if (COMPILE_LLVM (cfg)) {
3864 /* The IR has to be in SSA form for LLVM */
3865 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3866 cfg->exception_message = g_strdup ("SSA disabled.");
3867 cfg->disable_llvm = TRUE;
3870 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3871 mono_decompose_array_access_opts (cfg);
3873 if (!cfg->disable_llvm)
3874 mono_llvm_emit_method (cfg);
3875 if (cfg->disable_llvm) {
3876 if (cfg->verbose_level >= 1) {
3877 //nm = mono_method_full_name (cfg->method, TRUE);
3878 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3881 mono_destroy_compile (cfg);
3883 goto restart_compile;
3886 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3887 nm = mono_method_full_name (cfg->method, TRUE);
3888 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3890 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3898 if (COMPILE_LLVM (cfg))
3899 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3901 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3903 cfg->jit_info = create_jit_info (cfg, method_to_compile);
3905 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3906 if (cfg->extend_live_ranges) {
3907 /* Extend live ranges to cover the whole method */
3908 for (i = 0; i < cfg->num_varinfo; ++i)
3909 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3913 if (!cfg->compile_aot)
3914 mono_save_xdebug_info (cfg);
3916 mini_gc_create_gc_map (cfg);
3918 mono_save_seq_point_info (cfg);
3920 if (cfg->verbose_level >= 2) {
3921 char *id = mono_method_full_name (cfg->method, FALSE);
3922 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3926 if (!cfg->compile_aot) {
3927 mono_domain_lock (cfg->domain);
3928 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
3930 if (cfg->method->dynamic)
3931 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
3932 mono_domain_unlock (cfg->domain);
3937 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
3940 /* collect statistics */
3941 #ifndef DISABLE_PERFCOUNTERS
3942 mono_perfcounters->jit_methods++;
3943 mono_perfcounters->jit_bytes += header->code_size;
3945 mono_jit_stats.allocated_code_size += cfg->code_len;
3946 code_size_ratio = cfg->code_len;
3947 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
3948 mono_jit_stats.biggest_method_size = code_size_ratio;
3949 g_free (mono_jit_stats.biggest_method);
3950 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3952 code_size_ratio = (code_size_ratio * 100) / header->code_size;
3953 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
3954 mono_jit_stats.max_code_size_ratio = code_size_ratio;
3955 g_free (mono_jit_stats.max_ratio_method);
3956 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3958 mono_jit_stats.native_code_size += cfg->code_len;
3960 if (MONO_METHOD_COMPILE_END_ENABLED ())
3961 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3969 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts)
3971 g_assert_not_reached ();
3975 #endif /* DISABLE_JIT */
3978 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoException **jit_ex)
3981 gpointer code = NULL;
3982 MonoJitInfo *jinfo, *info;
3984 MonoException *ex = NULL;
3985 guint32 prof_options;
3987 MonoMethod *prof_method, *shared;
3989 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
3990 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3992 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
3994 if (!piinfo->addr) {
3995 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3996 piinfo->addr = mono_lookup_internal_call (method);
3997 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
3999 g_warning ("Method '%s' in assembly '%s' contains native code that cannot be executed by Mono in modules loaded from byte arrays. The assembly was probably created using C++/CLI.\n", mono_method_full_name (method, TRUE), method->klass->image->name);
4001 g_warning ("Method '%s' in assembly '%s' contains native code that cannot be executed by Mono on this platform. The assembly was probably created using C++/CLI.\n", mono_method_full_name (method, TRUE), method->klass->image->name);
4004 mono_lookup_pinvoke_call (method, NULL, NULL);
4006 nm = mono_marshal_get_native_wrapper (method, check_for_pending_exc, mono_aot_only);
4007 code = mono_get_addr_from_ftnptr (mono_compile_method (nm));
4008 jinfo = mono_jit_info_table_find (target_domain, code);
4010 jinfo = mono_jit_info_table_find (mono_domain_get (), code);
4012 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4014 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4015 const char *name = method->name;
4016 char *full_name, *msg;
4019 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4020 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4021 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
4024 * We need to make sure this wrapper
4025 * is compiled because it might end up
4026 * in an (M)RGCTX if generic sharing
4027 * is enabled, and would be called
4028 * indirectly. If it were a
4029 * trampoline we'd try to patch that
4030 * indirect call, which is not
4033 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4034 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4035 #ifdef MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
4036 return mono_create_delegate_trampoline (target_domain, method->klass);
4038 nm = mono_marshal_get_delegate_invoke (method, NULL);
4039 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4041 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4042 nm = mono_marshal_get_delegate_begin_invoke (method);
4043 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4044 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4045 nm = mono_marshal_get_delegate_end_invoke (method);
4046 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4050 full_name = mono_method_full_name (method, TRUE);
4051 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4052 *jit_ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4058 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4059 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4061 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4062 static MonoTrampInfo *in_tinfo, *out_tinfo;
4063 MonoTrampInfo *tinfo;
4065 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4067 if (is_in && in_tinfo)
4068 return in_tinfo->code;
4069 else if (!is_in && out_tinfo)
4070 return out_tinfo->code;
4073 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4075 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4078 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4080 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4081 jinfo = create_jit_info_for_trampoline (method, tinfo);
4082 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4091 if (mono_aot_only) {
4092 char *fullname = mono_method_full_name (method, TRUE);
4093 char *msg = g_strdup_printf ("Attempting to JIT compile method '%s' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.\n", fullname);
4095 *jit_ex = mono_get_exception_execution_engine (msg);
4102 jit_timer = g_timer_new ();
4104 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0);
4105 prof_method = cfg->method;
4107 g_timer_stop (jit_timer);
4108 mono_jit_stats.jit_time += g_timer_elapsed (jit_timer, NULL);
4109 g_timer_destroy (jit_timer);
4111 switch (cfg->exception_type) {
4112 case MONO_EXCEPTION_NONE:
4114 case MONO_EXCEPTION_TYPE_LOAD:
4115 case MONO_EXCEPTION_MISSING_FIELD:
4116 case MONO_EXCEPTION_MISSING_METHOD:
4117 case MONO_EXCEPTION_FILE_NOT_FOUND:
4118 case MONO_EXCEPTION_BAD_IMAGE: {
4119 /* Throw a type load exception if needed */
4120 MonoLoaderError *error = mono_loader_get_last_error ();
4123 ex = mono_loader_error_prepare_exception (error);
4125 if (cfg->exception_ptr) {
4126 ex = mono_class_get_exception_for_failure (cfg->exception_ptr);
4128 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4129 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4130 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4131 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4132 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4133 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4134 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4135 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FileNotFoundException", cfg->exception_message);
4136 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4137 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4139 g_assert_not_reached ();
4144 case MONO_EXCEPTION_INVALID_PROGRAM:
4145 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4147 case MONO_EXCEPTION_UNVERIFIABLE_IL:
4148 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
4150 case MONO_EXCEPTION_METHOD_ACCESS:
4151 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MethodAccessException", cfg->exception_message);
4153 case MONO_EXCEPTION_FIELD_ACCESS:
4154 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FieldAccessException", cfg->exception_message);
4156 #ifndef DISABLE_SECURITY
4157 /* this can only be set if the security manager is active */
4158 case MONO_EXCEPTION_SECURITY_LINKDEMAND: {
4159 MonoSecurityManager* secman = mono_security_manager_get_methods ();
4160 MonoObject *exc = NULL;
4163 args [0] = &cfg->exception_data;
4165 mono_runtime_invoke (secman->linkdemandsecurityexception, NULL, args, &exc);
4167 ex = (MonoException*)exc;
4171 case MONO_EXCEPTION_OBJECT_SUPPLIED: {
4172 MonoException *exp = cfg->exception_ptr;
4173 MONO_GC_UNREGISTER_ROOT (cfg->exception_ptr);
4178 case MONO_EXCEPTION_OUT_OF_MEMORY:
4179 ex = mono_domain_get ()->out_of_memory_ex;
4181 case MONO_EXCEPTION_MONO_ERROR:
4182 g_assert (!mono_error_ok (&cfg->error));
4183 ex = mono_error_convert_to_exception (&cfg->error);
4186 g_assert_not_reached ();
4190 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4191 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4193 mono_destroy_compile (cfg);
4199 if (mono_method_is_generic_sharable (method, FALSE))
4200 shared = mini_get_shared_method (method);
4204 mono_domain_lock (target_domain);
4206 /* Check if some other thread already did the job. In this case, we can
4207 discard the code this thread generated. */
4209 info = mini_lookup_method (target_domain, method, shared);
4211 /* We can't use a domain specific method in another domain */
4212 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4213 code = info->code_start;
4214 // printf("Discarding code for method %s\n", method->name);
4218 /* The lookup + insert is atomic since this is done inside the domain lock */
4219 mono_domain_jit_code_hash_lock (target_domain);
4220 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4221 mono_domain_jit_code_hash_unlock (target_domain);
4223 code = cfg->native_code;
4225 if (cfg->generic_sharing_context && mono_method_is_generic_sharable (method, FALSE))
4226 mono_stats.generics_shared_methods++;
4228 mono_stats.gsharedvt_methods++;
4231 jinfo = cfg->jit_info;
4233 prof_options = cfg->prof_options;
4236 * Update global stats while holding a lock, instead of doing many
4237 * InterlockedIncrement operations during JITting.
4239 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4240 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4241 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4242 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4243 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4244 mono_jit_stats.regvars += cfg->stat_n_regvars;
4245 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4246 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4247 mono_jit_stats.cas_demand_generation += cfg->stat_cas_demand_generation;
4248 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4250 mono_destroy_compile (cfg);
4253 if (domain_jit_info (target_domain)->jump_target_hash) {
4254 MonoJumpInfo patch_info;
4255 MonoJumpList *jlist;
4257 jlist = g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4259 patch_info.next = NULL;
4260 patch_info.ip.i = 0;
4261 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4262 patch_info.data.method = method;
4263 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4265 #if defined(__native_client_codegen__) && defined(__native_client__)
4266 /* These patches are applied after a method has been installed, no target munging is needed. */
4267 nacl_allow_target_modification (FALSE);
4269 for (tmp = jlist->list; tmp; tmp = tmp->next)
4270 mono_arch_patch_code (NULL, target_domain, tmp->data, &patch_info, NULL, TRUE);
4271 #if defined(__native_client_codegen__) && defined(__native_client__)
4272 nacl_allow_target_modification (TRUE);
4277 mono_emit_jit_map (jinfo);
4279 mono_domain_unlock (target_domain);
4281 vtable = mono_class_vtable (target_domain, method->klass);
4283 ex = mono_class_get_exception_for_failure (method->klass);
4289 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4290 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4291 if (mono_marshal_method_from_wrapper (method)) {
4292 /* Native func wrappers have no method */
4293 /* The profiler doesn't know about wrappers, so pass the original icall method */
4294 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4297 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4298 if (prof_method != method) {
4299 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4303 ex = mono_runtime_class_init_full (vtable, FALSE);
4314 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) {
4315 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
4319 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
4321 TryBlockHole *hole = mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
4322 hole->clause = clause;
4323 hole->start_offset = start - cfg->native_code;
4324 hole->basic_block = bb;
4326 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
4330 mono_cfg_set_exception (MonoCompile *cfg, int type)
4332 cfg->exception_type = type;
4337 /* Dummy versions of some arch specific functions to avoid ifdefs at call sites */
4339 #ifndef MONO_ARCH_GSHAREDVT_SUPPORTED
4342 mono_arch_gsharedvt_sig_supported (MonoMethodSignature *sig)
4348 mono_arch_get_gsharedvt_call_info (gpointer addr, MonoMethodSignature *normal_sig, MonoMethodSignature *gsharedvt_sig, MonoGenericSharingContext *gsctx, gboolean gsharedvt_in, gint32 vcall_offset, gboolean calli)
4350 g_assert_not_reached ();
4355 mono_arch_get_gsharedvt_arg_trampoline (MonoDomain *domain, gpointer arg, gpointer addr)
4357 g_assert_not_reached ();
4362 mono_arch_get_gsharedvt_trampoline (MonoTrampInfo **info, gboolean aot)
4364 g_assert_not_reached ();
4370 #if defined(MONO_ARCH_GSHAREDVT_SUPPORTED) && !defined(ENABLE_GSHAREDVT)
4373 mono_arch_gsharedvt_sig_supported (MonoMethodSignature *sig)
4379 mono_arch_get_gsharedvt_call_info (gpointer addr, MonoMethodSignature *normal_sig, MonoMethodSignature *gsharedvt_sig, MonoGenericSharingContext *gsctx, gboolean gsharedvt_in, gint32 vcall_offset, gboolean calli)
4387 #ifdef USE_JUMP_TABLES
4388 #define DEFAULT_JUMPTABLE_CHUNK_ELEMENTS 128
4390 typedef struct MonoJumpTableChunk {
4393 struct MonoJumpTableChunk *previous;
4394 /* gpointer entries[total]; */
4395 } MonoJumpTableChunk;
4397 static MonoJumpTableChunk* g_jumptable;
4398 #define mono_jumptable_lock() mono_mutex_lock (&jumptable_mutex)
4399 #define mono_jumptable_unlock() mono_mutex_unlock (&jumptable_mutex)
4400 static mono_mutex_t jumptable_mutex;
4402 static MonoJumpTableChunk*
4403 mono_create_jumptable_chunk (guint32 max_entries)
4405 guint32 size = sizeof (MonoJumpTableChunk) + max_entries * sizeof(gpointer);
4406 MonoJumpTableChunk *chunk = (MonoJumpTableChunk*) g_new0 (guchar, size);
4407 chunk->total = max_entries;
4412 mono_jumptable_init (void)
4414 if (g_jumptable == NULL) {
4415 mono_mutex_init_recursive (&jumptable_mutex);
4416 g_jumptable = mono_create_jumptable_chunk (DEFAULT_JUMPTABLE_CHUNK_ELEMENTS);
4421 mono_jumptable_add_entry (void)
4423 return mono_jumptable_add_entries (1);
4427 mono_jumptable_add_entries (guint32 entries)
4432 mono_jumptable_init ();
4433 mono_jumptable_lock ();
4434 index = g_jumptable->active;
4435 if (index + entries >= g_jumptable->total) {
4437 * Grow jumptable, by adding one more chunk.
4438 * We cannot realloc jumptable, as there could be pointers
4439 * to existing jump table entries in the code, so instead
4440 * we just add one more chunk.
4442 guint32 max_entries = entries;
4443 MonoJumpTableChunk *new_chunk;
4445 if (max_entries < DEFAULT_JUMPTABLE_CHUNK_ELEMENTS)
4446 max_entries = DEFAULT_JUMPTABLE_CHUNK_ELEMENTS;
4447 new_chunk = mono_create_jumptable_chunk (max_entries);
4448 /* Link old jumptable, so that we could free it up later. */
4449 new_chunk->previous = g_jumptable;
4450 g_jumptable = new_chunk;
4453 g_jumptable->active = index + entries;
4454 result = (gpointer*)((guchar*)g_jumptable + sizeof(MonoJumpTableChunk)) + index;
4455 mono_jumptable_unlock();
4461 mono_jumptable_cleanup (void)
4464 MonoJumpTableChunk *current = g_jumptable, *prev;
4465 while (current != NULL) {
4466 prev = current->previous;
4471 mono_mutex_destroy (&jumptable_mutex);
4476 mono_jumptable_get_entry (guint8 *code_ptr)
4478 return mono_arch_jumptable_entry_from_code (code_ptr);
4483 * mini_replace_type:
4485 * Replace the type used in the metadata stream with what the JIT will actually use during compilation.
4488 mini_replace_type (MonoType *type)
4490 type = mono_type_get_underlying_type (type);
4491 return mini_native_type_replace_type (type);
4495 * mini_get_underlying_type:
4497 * Return the type the JIT will use during compilation.
4498 * Handles: byref, enums, native types, generic sharing.
4499 * For gsharedvt types, it will return the original VAR/MVAR.
4502 mini_get_underlying_type (MonoCompile *cfg, MonoType *type)
4504 type = mini_type_get_underlying_type (cfg->generic_sharing_context, type);
4505 return mini_native_type_replace_type (type);
4509 mini_jit_init (void)
4511 mono_mutex_init_recursive (&jit_mutex);
4515 mini_jit_cleanup (void)
4517 g_free (emul_opcode_map);
4518 g_free (emul_opcode_opcodes);