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-internals.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-internals.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"
75 #include "llvm-runtime.h"
76 #include "mini-llvm.h"
78 MonoTraceSpec *mono_jit_trace_calls;
79 MonoMethodDesc *mono_inject_async_exc_method;
80 int mono_inject_async_exc_pos;
81 MonoMethodDesc *mono_break_at_bb_method;
82 int mono_break_at_bb_bb_num;
83 gboolean mono_do_x86_stack_align = TRUE;
84 gboolean mono_using_xdebug;
86 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
87 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
88 static mono_mutex_t jit_mutex;
90 MonoBackend *current_backend;
95 mono_realloc_native_code (MonoCompile *cfg)
97 #if defined(__default_codegen__)
98 return g_realloc (cfg->native_code, cfg->code_size);
99 #elif defined(__native_client_codegen__)
101 gpointer native_code;
102 guint alignment_check;
104 /* Save the old alignment offset so we can re-align after the realloc. */
105 old_padding = (guint)(cfg->native_code - cfg->native_code_alloc);
106 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
108 cfg->native_code_alloc = g_realloc ( cfg->native_code_alloc,
109 cfg->code_size + kNaClAlignment );
111 /* Align native_code to next nearest kNaClAlignment byte. */
112 native_code = (guint)cfg->native_code_alloc + kNaClAlignment;
113 native_code = (guint)native_code & ~kNaClAlignmentMask;
115 /* Shift the data to be 32-byte aligned again. */
116 memmove (native_code, cfg->native_code_alloc + old_padding, cfg->code_size);
118 alignment_check = (guint)native_code & kNaClAlignmentMask;
119 g_assert (alignment_check == 0);
122 g_assert_not_reached ();
123 return cfg->native_code;
127 #ifdef __native_client_codegen__
129 /* Prevent instructions from straddling a 32-byte alignment boundary. */
130 /* Instructions longer than 32 bytes must be aligned internally. */
131 /* IN: pcode, instlen */
133 void mono_nacl_align_inst(guint8 **pcode, int instlen) {
136 space_in_block = kNaClAlignment - ((uintptr_t)(*pcode) & kNaClAlignmentMask);
138 if (G_UNLIKELY (instlen >= kNaClAlignment)) {
139 g_assert_not_reached();
140 } else if (instlen > space_in_block) {
141 *pcode = mono_arch_nacl_pad(*pcode, space_in_block);
145 /* Move emitted call sequence to the end of a kNaClAlignment-byte block. */
146 /* IN: start pointer to start of call sequence */
147 /* IN: pcode pointer to end of call sequence (current "IP") */
148 /* OUT: start pointer to the start of the call sequence after padding */
149 /* OUT: pcode pointer to the end of the call sequence after padding */
150 void mono_nacl_align_call(guint8 **start, guint8 **pcode) {
151 const size_t MAX_NACL_CALL_LENGTH = kNaClAlignment;
152 guint8 copy_of_call[MAX_NACL_CALL_LENGTH];
155 const size_t length = (size_t)((*pcode)-(*start));
156 g_assert(length < MAX_NACL_CALL_LENGTH);
158 memcpy(copy_of_call, *start, length);
159 temp = mono_nacl_pad_call(*start, (guint8)length);
160 memcpy(temp, copy_of_call, length);
162 (*pcode) = temp + length;
165 /* mono_nacl_pad_call(): Insert padding for Native Client call instructions */
166 /* code pointer to buffer for emitting code */
167 /* ilength length of call instruction */
168 guint8 *mono_nacl_pad_call(guint8 *code, guint8 ilength) {
169 int freeSpaceInBlock = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
170 int padding = freeSpaceInBlock - ilength;
173 /* There isn't enough space in this block for the instruction. */
174 /* Fill this block and start a new one. */
175 code = mono_arch_nacl_pad(code, freeSpaceInBlock);
176 freeSpaceInBlock = kNaClAlignment;
177 padding = freeSpaceInBlock - ilength;
179 g_assert(ilength > 0);
180 g_assert(padding >= 0);
181 g_assert(padding < kNaClAlignment);
182 if (0 == padding) return code;
183 return mono_arch_nacl_pad(code, padding);
186 guint8 *mono_nacl_align(guint8 *code) {
187 int padding = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
188 if (padding != kNaClAlignment) code = mono_arch_nacl_pad(code, padding);
192 void mono_nacl_fix_patches(const guint8 *code, MonoJumpInfo *ji)
194 #ifndef USE_JUMP_TABLES
195 MonoJumpInfo *patch_info;
196 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
197 unsigned char *ip = patch_info->ip.i + code;
198 ip = mono_arch_nacl_skip_nops(ip);
199 patch_info->ip.i = ip - code;
203 #endif /* __native_client_codegen__ */
205 #ifdef USE_JUMP_TABLES
207 #define DEFAULT_JUMPTABLE_CHUNK_ELEMENTS 128
209 typedef struct MonoJumpTableChunk {
212 struct MonoJumpTableChunk *previous;
213 /* gpointer entries[total]; */
214 } MonoJumpTableChunk;
216 static MonoJumpTableChunk* g_jumptable;
217 #define mono_jumptable_lock() mono_os_mutex_lock (&jumptable_mutex)
218 #define mono_jumptable_unlock() mono_os_mutex_unlock (&jumptable_mutex)
219 static mono_mutex_t jumptable_mutex;
221 static MonoJumpTableChunk*
222 mono_create_jumptable_chunk (guint32 max_entries)
224 guint32 size = sizeof (MonoJumpTableChunk) + max_entries * sizeof(gpointer);
225 MonoJumpTableChunk *chunk = (MonoJumpTableChunk*) g_new0 (guchar, size);
226 chunk->total = max_entries;
231 mono_jumptable_init (void)
233 if (g_jumptable == NULL) {
234 mono_os_mutex_init_recursive (&jumptable_mutex);
235 g_jumptable = mono_create_jumptable_chunk (DEFAULT_JUMPTABLE_CHUNK_ELEMENTS);
240 mono_jumptable_add_entry (void)
242 return mono_jumptable_add_entries (1);
246 mono_jumptable_add_entries (guint32 entries)
251 mono_jumptable_init ();
252 mono_jumptable_lock ();
253 index = g_jumptable->active;
254 if (index + entries >= g_jumptable->total) {
256 * Grow jumptable, by adding one more chunk.
257 * We cannot realloc jumptable, as there could be pointers
258 * to existing jump table entries in the code, so instead
259 * we just add one more chunk.
261 guint32 max_entries = entries;
262 MonoJumpTableChunk *new_chunk;
264 if (max_entries < DEFAULT_JUMPTABLE_CHUNK_ELEMENTS)
265 max_entries = DEFAULT_JUMPTABLE_CHUNK_ELEMENTS;
266 new_chunk = mono_create_jumptable_chunk (max_entries);
267 /* Link old jumptable, so that we could free it up later. */
268 new_chunk->previous = g_jumptable;
269 g_jumptable = new_chunk;
272 g_jumptable->active = index + entries;
273 result = (gpointer*)((guchar*)g_jumptable + sizeof(MonoJumpTableChunk)) + index;
274 mono_jumptable_unlock();
280 mono_jumptable_cleanup (void)
283 MonoJumpTableChunk *current = g_jumptable, *prev;
284 while (current != NULL) {
285 prev = current->previous;
290 mono_os_mutex_destroy (&jumptable_mutex);
295 mono_jumptable_get_entry (guint8 *code_ptr)
297 return mono_arch_jumptable_entry_from_code (code_ptr);
300 #endif /* USE_JUMP_TABLES */
303 MonoExceptionClause *clause;
304 MonoBasicBlock *basic_block;
309 * mono_emit_unwind_op:
311 * Add an unwind op with the given parameters for the list of unwind ops stored in
315 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
317 MonoUnwindOp *op = (MonoUnwindOp *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
324 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
325 if (cfg->verbose_level > 1) {
328 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
330 case DW_CFA_def_cfa_register:
331 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
333 case DW_CFA_def_cfa_offset:
334 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
337 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
343 #define MONO_INIT_VARINFO(vi,id) do { \
344 (vi)->range.first_use.pos.bid = 0xffff; \
350 * mono_unlink_bblock:
352 * Unlink two basic blocks.
355 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
361 for (i = 0; i < from->out_count; ++i) {
362 if (to == from->out_bb [i]) {
369 for (i = 0; i < from->out_count; ++i) {
370 if (from->out_bb [i] != to)
371 from->out_bb [pos ++] = from->out_bb [i];
373 g_assert (pos == from->out_count - 1);
378 for (i = 0; i < to->in_count; ++i) {
379 if (from == to->in_bb [i]) {
386 for (i = 0; i < to->in_count; ++i) {
387 if (to->in_bb [i] != from)
388 to->in_bb [pos ++] = to->in_bb [i];
390 g_assert (pos == to->in_count - 1);
396 * mono_bblocks_linked:
398 * Return whenever BB1 and BB2 are linked in the CFG.
401 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
405 for (i = 0; i < bb1->out_count; ++i) {
406 if (bb1->out_bb [i] == bb2)
414 mono_find_block_region_notry (MonoCompile *cfg, int offset)
416 MonoMethodHeader *header = cfg->header;
417 MonoExceptionClause *clause;
420 for (i = 0; i < header->num_clauses; ++i) {
421 clause = &header->clauses [i];
422 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
423 (offset < (clause->handler_offset)))
424 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
426 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
427 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
428 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
429 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
430 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
432 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
440 * mono_get_block_region_notry:
442 * Return the region corresponding to REGION, ignoring try clauses nested inside
446 mono_get_block_region_notry (MonoCompile *cfg, int region)
448 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
449 MonoMethodHeader *header = cfg->header;
452 * This can happen if a try clause is nested inside a finally clause.
454 int clause_index = (region >> 8) - 1;
455 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
457 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
464 mono_find_spvar_for_region (MonoCompile *cfg, int region)
466 region = mono_get_block_region_notry (cfg, region);
468 return (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
472 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
476 array [*dfn] = start;
477 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
478 for (i = 0; i < start->out_count; ++i) {
479 if (start->out_bb [i]->dfn)
482 start->out_bb [i]->dfn = *dfn;
483 start->out_bb [i]->df_parent = start;
484 array [*dfn] = start->out_bb [i];
485 df_visit (start->out_bb [i], dfn, array);
490 mono_reverse_branch_op (guint32 opcode)
492 static const int reverse_map [] = {
493 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
494 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
496 static const int reverse_fmap [] = {
497 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
498 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
500 static const int reverse_lmap [] = {
501 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
502 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
504 static const int reverse_imap [] = {
505 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
506 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
509 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
510 opcode = reverse_map [opcode - CEE_BEQ];
511 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
512 opcode = reverse_fmap [opcode - OP_FBEQ];
513 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
514 opcode = reverse_lmap [opcode - OP_LBEQ];
515 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
516 opcode = reverse_imap [opcode - OP_IBEQ];
518 g_assert_not_reached ();
524 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
526 type = mini_get_underlying_type (type);
529 switch (type->type) {
532 return OP_STOREI1_MEMBASE_REG;
535 return OP_STOREI2_MEMBASE_REG;
538 return OP_STOREI4_MEMBASE_REG;
542 case MONO_TYPE_FNPTR:
543 return OP_STORE_MEMBASE_REG;
544 case MONO_TYPE_CLASS:
545 case MONO_TYPE_STRING:
546 case MONO_TYPE_OBJECT:
547 case MONO_TYPE_SZARRAY:
548 case MONO_TYPE_ARRAY:
549 return OP_STORE_MEMBASE_REG;
552 return OP_STOREI8_MEMBASE_REG;
554 return OP_STORER4_MEMBASE_REG;
556 return OP_STORER8_MEMBASE_REG;
557 case MONO_TYPE_VALUETYPE:
558 if (type->data.klass->enumtype) {
559 type = mono_class_enum_basetype (type->data.klass);
562 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
563 return OP_STOREX_MEMBASE;
564 return OP_STOREV_MEMBASE;
565 case MONO_TYPE_TYPEDBYREF:
566 return OP_STOREV_MEMBASE;
567 case MONO_TYPE_GENERICINST:
568 type = &type->data.generic_class->container_class->byval_arg;
572 g_assert (mini_type_var_is_vt (type));
573 return OP_STOREV_MEMBASE;
575 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
581 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
583 type = mini_get_underlying_type (type);
585 switch (type->type) {
587 return OP_LOADI1_MEMBASE;
589 return OP_LOADU1_MEMBASE;
591 return OP_LOADI2_MEMBASE;
593 return OP_LOADU2_MEMBASE;
595 return OP_LOADI4_MEMBASE;
597 return OP_LOADU4_MEMBASE;
601 case MONO_TYPE_FNPTR:
602 return OP_LOAD_MEMBASE;
603 case MONO_TYPE_CLASS:
604 case MONO_TYPE_STRING:
605 case MONO_TYPE_OBJECT:
606 case MONO_TYPE_SZARRAY:
607 case MONO_TYPE_ARRAY:
608 return OP_LOAD_MEMBASE;
611 return OP_LOADI8_MEMBASE;
613 return OP_LOADR4_MEMBASE;
615 return OP_LOADR8_MEMBASE;
616 case MONO_TYPE_VALUETYPE:
617 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
618 return OP_LOADX_MEMBASE;
619 case MONO_TYPE_TYPEDBYREF:
620 return OP_LOADV_MEMBASE;
621 case MONO_TYPE_GENERICINST:
622 if (mono_type_generic_inst_is_valuetype (type))
623 return OP_LOADV_MEMBASE;
625 return OP_LOAD_MEMBASE;
629 g_assert (cfg->gshared);
630 g_assert (mini_type_var_is_vt (type));
631 return OP_LOADV_MEMBASE;
633 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
639 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
641 type = mini_get_underlying_type (type);
642 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
643 g_assert (mini_type_var_is_vt (type));
646 return mono_type_to_stind (type);
650 mono_op_imm_to_op (int opcode)
654 #if SIZEOF_REGISTER == 4
672 #if SIZEOF_REGISTER == 4
678 #if SIZEOF_REGISTER == 4
684 #if SIZEOF_REGISTER == 4
730 #if SIZEOF_REGISTER == 4
736 #if SIZEOF_REGISTER == 4
755 case OP_ICOMPARE_IMM:
757 case OP_LOCALLOC_IMM:
765 * mono_decompose_op_imm:
767 * Replace the OP_.._IMM INS with its non IMM variant.
770 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
772 int opcode2 = mono_op_imm_to_op (ins->opcode);
775 const char *spec = INS_INFO (ins->opcode);
777 if (spec [MONO_INST_SRC2] == 'l') {
778 dreg = mono_alloc_lreg (cfg);
780 /* Load the 64bit constant using decomposed ops */
781 MONO_INST_NEW (cfg, temp, OP_ICONST);
782 temp->inst_c0 = ins->inst_ls_word;
783 temp->dreg = MONO_LVREG_LS (dreg);
784 mono_bblock_insert_before_ins (bb, ins, temp);
786 MONO_INST_NEW (cfg, temp, OP_ICONST);
787 temp->inst_c0 = ins->inst_ms_word;
788 temp->dreg = MONO_LVREG_MS (dreg);
790 dreg = mono_alloc_ireg (cfg);
792 MONO_INST_NEW (cfg, temp, OP_ICONST);
793 temp->inst_c0 = ins->inst_imm;
797 mono_bblock_insert_before_ins (bb, ins, temp);
800 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
801 ins->opcode = opcode2;
803 if (ins->opcode == OP_LOCALLOC)
808 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
812 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
814 if (vreg >= cfg->vreg_to_inst_len) {
815 MonoInst **tmp = cfg->vreg_to_inst;
816 int size = cfg->vreg_to_inst_len;
818 while (vreg >= cfg->vreg_to_inst_len)
819 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
820 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
822 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
824 cfg->vreg_to_inst [vreg] = inst;
827 #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)))
828 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
831 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
834 int num = cfg->num_varinfo;
837 type = mini_get_underlying_type (type);
839 if ((num + 1) >= cfg->varinfo_count) {
840 int orig_count = cfg->varinfo_count;
841 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
842 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
843 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
844 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
847 cfg->stat_allocate_var++;
849 MONO_INST_NEW (cfg, inst, opcode);
851 inst->inst_vtype = type;
852 inst->klass = mono_class_from_mono_type (type);
853 type_to_eval_stack_type (cfg, type, inst);
854 /* if set to 1 the variable is native */
855 inst->backend.is_pinvoke = 0;
858 if (mono_class_has_failure (inst->klass))
859 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
861 if (cfg->compute_gc_maps) {
863 mono_mark_vreg_as_mp (cfg, vreg);
865 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
866 inst->flags |= MONO_INST_GC_TRACK;
867 mono_mark_vreg_as_ref (cfg, vreg);
872 cfg->varinfo [num] = inst;
874 MONO_INIT_VARINFO (&cfg->vars [num], num);
875 MONO_VARINFO (cfg, num)->vreg = vreg;
878 set_vreg_to_inst (cfg, vreg, inst);
880 #if SIZEOF_REGISTER == 4
881 if (mono_arch_is_soft_float ()) {
882 regpair = mono_type_is_long (type) || mono_type_is_float (type);
884 regpair = mono_type_is_long (type);
894 * These two cannot be allocated using create_var_for_vreg since that would
895 * put it into the cfg->varinfo array, confusing many parts of the JIT.
899 * Set flags to VOLATILE so SSA skips it.
902 if (cfg->verbose_level >= 4) {
903 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
906 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
907 if (mono_type_is_float (type))
908 inst->flags = MONO_INST_VOLATILE;
911 /* Allocate a dummy MonoInst for the first vreg */
912 MONO_INST_NEW (cfg, tree, OP_LOCAL);
913 tree->dreg = MONO_LVREG_LS (inst->dreg);
914 if (cfg->opt & MONO_OPT_SSA)
915 tree->flags = MONO_INST_VOLATILE;
917 tree->type = STACK_I4;
918 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
919 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
921 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
923 /* Allocate a dummy MonoInst for the second vreg */
924 MONO_INST_NEW (cfg, tree, OP_LOCAL);
925 tree->dreg = MONO_LVREG_MS (inst->dreg);
926 if (cfg->opt & MONO_OPT_SSA)
927 tree->flags = MONO_INST_VOLATILE;
929 tree->type = STACK_I4;
930 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
931 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
933 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
937 if (cfg->verbose_level > 2)
938 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
943 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
946 type = mini_get_underlying_type (type);
948 if (mono_type_is_long (type))
949 dreg = mono_alloc_dreg (cfg, STACK_I8);
950 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
951 dreg = mono_alloc_dreg (cfg, STACK_R8);
953 /* All the others are unified */
954 dreg = mono_alloc_preg (cfg);
956 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
960 mini_get_int_to_float_spill_area (MonoCompile *cfg)
963 if (!cfg->iconv_raw_var) {
964 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
965 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
967 return cfg->iconv_raw_var;
974 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
976 if (vreg >= cfg->vreg_is_ref_len) {
977 gboolean *tmp = cfg->vreg_is_ref;
978 int size = cfg->vreg_is_ref_len;
980 while (vreg >= cfg->vreg_is_ref_len)
981 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
982 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
984 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
986 cfg->vreg_is_ref [vreg] = TRUE;
990 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
992 if (vreg >= cfg->vreg_is_mp_len) {
993 gboolean *tmp = cfg->vreg_is_mp;
994 int size = cfg->vreg_is_mp_len;
996 while (vreg >= cfg->vreg_is_mp_len)
997 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
998 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
1000 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
1002 cfg->vreg_is_mp [vreg] = TRUE;
1006 type_from_stack_type (MonoInst *ins)
1008 switch (ins->type) {
1009 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1010 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1011 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1012 case STACK_R8: return &mono_defaults.double_class->byval_arg;
1015 * this if used to be commented without any specific reason, but
1016 * it breaks #80235 when commented
1019 return &ins->klass->this_arg;
1021 return &mono_defaults.object_class->this_arg;
1023 /* ins->klass may not be set for ldnull.
1024 * Also, if we have a boxed valuetype, we want an object lass,
1025 * not the valuetype class
1027 if (ins->klass && !ins->klass->valuetype)
1028 return &ins->klass->byval_arg;
1029 return &mono_defaults.object_class->byval_arg;
1030 case STACK_VTYPE: return &ins->klass->byval_arg;
1032 g_error ("stack type %d to montype not handled\n", ins->type);
1038 mono_type_from_stack_type (MonoInst *ins)
1040 return type_from_stack_type (ins);
1044 * mono_add_ins_to_end:
1046 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
1049 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
1054 MONO_ADD_INS (bb, inst);
1058 switch (bb->last_ins->opcode) {
1072 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1075 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
1076 /* Need to insert the ins before the compare */
1077 if (bb->code == bb->last_ins) {
1078 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1082 if (bb->code->next == bb->last_ins) {
1083 /* Only two instructions */
1084 opcode = bb->code->opcode;
1086 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)) {
1088 mono_bblock_insert_before_ins (bb, bb->code, inst);
1090 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1093 opcode = bb->last_ins->prev->opcode;
1095 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)) {
1097 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1099 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1104 MONO_ADD_INS (bb, inst);
1110 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1112 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1113 MonoJumpInfoBBTable *table;
1115 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1117 table->table_size = num_blocks;
1119 ji->ip.label = label;
1120 ji->type = MONO_PATCH_INFO_SWITCH;
1121 ji->data.table = table;
1122 ji->next = cfg->patch_info;
1123 cfg->patch_info = ji;
1126 static MonoMethodSignature *
1127 mono_get_array_new_va_signature (int arity)
1129 static GHashTable *sighash;
1130 MonoMethodSignature *res;
1135 sighash = g_hash_table_new (NULL, NULL);
1137 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1142 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1145 if (ARCH_VARARG_ICALLS)
1146 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1147 res->call_convention = MONO_CALL_VARARG;
1150 res->call_convention = MONO_CALL_C;
1153 res->params [0] = &mono_defaults.int_class->byval_arg;
1154 for (i = 0; i < arity; i++)
1155 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1157 res->ret = &mono_defaults.object_class->byval_arg;
1159 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1166 mono_get_array_new_va_icall (int rank)
1168 MonoMethodSignature *esig;
1169 char icall_name [256];
1171 MonoJitICallInfo *info;
1173 /* Need to register the icall so it gets an icall wrapper */
1174 sprintf (icall_name, "ves_array_new_va_%d", rank);
1177 info = mono_find_jit_icall_by_name (icall_name);
1179 esig = mono_get_array_new_va_signature (rank);
1180 name = g_strdup (icall_name);
1181 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1189 mini_class_is_system_array (MonoClass *klass)
1191 if (klass->parent == mono_defaults.array_class)
1198 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1200 MonoAssembly *assembly = method->klass->image->assembly;
1201 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1203 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1205 return mono_assembly_has_skip_verification (assembly);
1209 * mini_method_verify:
1211 * Verify the method using the verfier.
1213 * Returns true if the method is invalid.
1216 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1219 gboolean is_fulltrust;
1221 if (method->verification_success)
1224 if (!mono_verifier_is_enabled_for_method (method))
1227 /*skip verification implies the assembly must be */
1228 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1230 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1232 if (mono_loader_get_last_error ()) {
1234 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1235 mono_error_set_from_loader_error (&cfg->error);
1237 mono_loader_clear_error ();
1240 mono_free_verify_list (res);
1245 for (tmp = res; tmp; tmp = tmp->next) {
1246 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1247 if (info->info.status == MONO_VERIFY_ERROR) {
1249 char *method_name = mono_method_full_name (method, TRUE);
1250 cfg->exception_type = info->exception_type;
1251 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1252 g_free (method_name);
1254 mono_free_verify_list (res);
1257 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1259 char *method_name = mono_method_full_name (method, TRUE);
1260 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1262 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1263 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1264 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1265 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1266 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1267 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", msg);
1268 if (!mono_error_ok (&cfg->error)) {
1269 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1272 cfg->exception_type = info->exception_type;
1273 cfg->exception_message = msg;
1275 g_free (method_name);
1277 mono_free_verify_list (res);
1281 mono_free_verify_list (res);
1283 method->verification_success = 1;
1287 /*Returns true if something went wrong*/
1289 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1291 MonoMethod *method_definition = method;
1292 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1294 while (method_definition->is_inflated) {
1295 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1296 method_definition = imethod->declaring;
1299 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1303 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1305 if (!domain_jit_info (domain)->dynamic_code_hash)
1306 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1307 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1310 static MonoJitDynamicMethodInfo*
1311 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1313 MonoJitDynamicMethodInfo *res;
1315 if (domain_jit_info (domain)->dynamic_code_hash)
1316 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1324 GList *active, *inactive;
1329 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1331 MonoMethodVar *v1 = (MonoMethodVar*)a;
1332 MonoMethodVar *v2 = (MonoMethodVar*)b;
1336 else if (v1->interval->range && v2->interval->range)
1337 return v1->interval->range->from - v2->interval->range->from;
1338 else if (v1->interval->range)
1345 #define LSCAN_DEBUG(a) do { a; } while (0)
1347 #define LSCAN_DEBUG(a)
1351 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1353 int i, slot, offset, size;
1358 GList *vars = NULL, *l, *unhandled;
1359 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1362 gboolean reuse_slot;
1364 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1366 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1367 vtype_stack_slots = NULL;
1370 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1371 for (i = 0; i < cfg->num_varinfo; ++i)
1374 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1375 inst = cfg->varinfo [i];
1376 vmv = MONO_VARINFO (cfg, i);
1378 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1381 vars = g_list_prepend (vars, vmv);
1384 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1389 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1390 MonoMethodVar *current = unhandled->data;
1392 if (current->interval->range) {
1393 g_assert (current->interval->range->from >= i);
1394 i = current->interval->range->from;
1401 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1402 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1405 inst = cfg->varinfo [vmv->idx];
1407 t = mono_type_get_underlying_type (inst->inst_vtype);
1408 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1411 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1412 * pinvoke wrappers when they call functions returning structures */
1413 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1414 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1419 size = mini_type_stack_size (t, &ialign);
1422 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1427 if (cfg->disable_reuse_stack_slots)
1430 t = mini_get_underlying_type (t);
1432 case MONO_TYPE_GENERICINST:
1433 if (!mono_type_generic_inst_is_valuetype (t)) {
1434 slot_info = &scalar_stack_slots [t->type];
1438 case MONO_TYPE_VALUETYPE:
1439 if (!vtype_stack_slots)
1440 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1441 for (i = 0; i < nvtypes; ++i)
1442 if (t->data.klass == vtype_stack_slots [i].vtype)
1445 slot_info = &vtype_stack_slots [i];
1447 g_assert (nvtypes < 256);
1448 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1449 slot_info = &vtype_stack_slots [nvtypes];
1452 if (cfg->disable_reuse_ref_stack_slots)
1459 #if SIZEOF_VOID_P == 4
1464 if (cfg->disable_ref_noref_stack_slot_share) {
1465 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1470 case MONO_TYPE_CLASS:
1471 case MONO_TYPE_OBJECT:
1472 case MONO_TYPE_ARRAY:
1473 case MONO_TYPE_SZARRAY:
1474 case MONO_TYPE_STRING:
1475 /* Share non-float stack slots of the same size */
1476 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1477 if (cfg->disable_reuse_ref_stack_slots)
1482 slot_info = &scalar_stack_slots [t->type];
1486 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1490 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1492 if (!current->interval->range) {
1493 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1497 inst->flags |= MONO_INST_IS_DEAD;
1502 pos = current->interval->range->from;
1504 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1505 if (current->interval->range)
1506 LSCAN_DEBUG (mono_linterval_print (current->interval));
1507 LSCAN_DEBUG (printf ("\n"));
1509 /* Check for intervals in active which expired or inactive */
1511 /* FIXME: Optimize this */
1514 for (l = slot_info->active; l != NULL; l = l->next) {
1515 MonoMethodVar *v = (MonoMethodVar*)l->data;
1517 if (v->interval->last_range->to < pos) {
1518 slot_info->active = g_list_delete_link (slot_info->active, l);
1519 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1520 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1524 else if (!mono_linterval_covers (v->interval, pos)) {
1525 slot_info->inactive = g_list_append (slot_info->inactive, v);
1526 slot_info->active = g_list_delete_link (slot_info->active, l);
1527 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1534 /* Check for intervals in inactive which expired or active */
1536 /* FIXME: Optimize this */
1539 for (l = slot_info->inactive; l != NULL; l = l->next) {
1540 MonoMethodVar *v = (MonoMethodVar*)l->data;
1542 if (v->interval->last_range->to < pos) {
1543 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1544 // FIXME: Enabling this seems to cause impossible to debug crashes
1545 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1546 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1550 else if (mono_linterval_covers (v->interval, pos)) {
1551 slot_info->active = g_list_append (slot_info->active, v);
1552 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1553 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1561 * This also handles the case when the variable is used in an
1562 * exception region, as liveness info is not computed there.
1565 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1568 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1569 if (slot_info->slots) {
1570 slot = GPOINTER_TO_INT (slot_info->slots->data);
1572 slot_info->slots = slot_info->slots->next;
1575 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1577 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1583 static int count = 0;
1586 if (count == atoi (g_getenv ("COUNT3")))
1587 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1588 if (count > atoi (g_getenv ("COUNT3")))
1591 mono_print_ins (inst);
1596 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1598 if (inst->flags & MONO_INST_LMF) {
1599 size = sizeof (MonoLMF);
1600 align = sizeof (mgreg_t);
1607 if (slot == 0xffffff) {
1609 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1610 * efficient copying (and to work around the fact that OP_MEMCPY
1611 * and OP_MEMSET ignores alignment).
1613 if (MONO_TYPE_ISSTRUCT (t)) {
1614 align = MAX (align, sizeof (gpointer));
1615 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1620 offset += align - 1;
1621 offset &= ~(align - 1);
1625 offset += align - 1;
1626 offset &= ~(align - 1);
1631 if (*stack_align == 0)
1632 *stack_align = align;
1635 offsets [vmv->idx] = slot;
1638 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1639 if (scalar_stack_slots [i].active)
1640 g_list_free (scalar_stack_slots [i].active);
1642 for (i = 0; i < nvtypes; ++i) {
1643 if (vtype_stack_slots [i].active)
1644 g_list_free (vtype_stack_slots [i].active);
1647 cfg->stat_locals_stack_size += offset;
1649 *stack_size = offset;
1654 * mono_allocate_stack_slots:
1656 * Allocate stack slots for all non register allocated variables using a
1657 * linear scan algorithm.
1658 * Returns: an array of stack offsets.
1659 * STACK_SIZE is set to the amount of stack space needed.
1660 * STACK_ALIGN is set to the alignment needed by the locals area.
1663 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1665 int i, slot, offset, size;
1670 GList *vars = NULL, *l;
1671 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1674 gboolean reuse_slot;
1676 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1677 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1679 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1680 vtype_stack_slots = NULL;
1683 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1684 for (i = 0; i < cfg->num_varinfo; ++i)
1687 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1688 inst = cfg->varinfo [i];
1689 vmv = MONO_VARINFO (cfg, i);
1691 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1694 vars = g_list_prepend (vars, vmv);
1697 vars = mono_varlist_sort (cfg, vars, 0);
1699 *stack_align = sizeof(mgreg_t);
1700 for (l = vars; l; l = l->next) {
1701 vmv = (MonoMethodVar *)l->data;
1702 inst = cfg->varinfo [vmv->idx];
1704 t = mono_type_get_underlying_type (inst->inst_vtype);
1705 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1708 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1709 * pinvoke wrappers when they call functions returning structures */
1710 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1711 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1715 size = mini_type_stack_size (t, &ialign);
1718 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1719 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1721 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1726 if (cfg->disable_reuse_stack_slots)
1729 t = mini_get_underlying_type (t);
1731 case MONO_TYPE_GENERICINST:
1732 if (!mono_type_generic_inst_is_valuetype (t)) {
1733 slot_info = &scalar_stack_slots [t->type];
1737 case MONO_TYPE_VALUETYPE:
1738 if (!vtype_stack_slots)
1739 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1740 for (i = 0; i < nvtypes; ++i)
1741 if (t->data.klass == vtype_stack_slots [i].vtype)
1744 slot_info = &vtype_stack_slots [i];
1746 g_assert (nvtypes < 256);
1747 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1748 slot_info = &vtype_stack_slots [nvtypes];
1751 if (cfg->disable_reuse_ref_stack_slots)
1758 #if SIZEOF_VOID_P == 4
1763 if (cfg->disable_ref_noref_stack_slot_share) {
1764 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1769 case MONO_TYPE_CLASS:
1770 case MONO_TYPE_OBJECT:
1771 case MONO_TYPE_ARRAY:
1772 case MONO_TYPE_SZARRAY:
1773 case MONO_TYPE_STRING:
1774 /* Share non-float stack slots of the same size */
1775 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1776 if (cfg->disable_reuse_ref_stack_slots)
1780 case MONO_TYPE_MVAR:
1781 slot_info = &scalar_stack_slots [t->type];
1784 slot_info = &scalar_stack_slots [t->type];
1789 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1790 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1792 /* expire old intervals in active */
1793 while (slot_info->active) {
1794 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1796 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1799 //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);
1801 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1802 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1806 * This also handles the case when the variable is used in an
1807 * exception region, as liveness info is not computed there.
1810 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1813 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1814 if (slot_info->slots) {
1815 slot = GPOINTER_TO_INT (slot_info->slots->data);
1817 slot_info->slots = slot_info->slots->next;
1820 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1825 static int count = 0;
1829 if (count == atoi (g_getenv ("COUNT")))
1830 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1831 if (count > atoi (g_getenv ("COUNT")))
1834 mono_print_ins (inst);
1839 if (inst->flags & MONO_INST_LMF) {
1841 * This variable represents a MonoLMF structure, which has no corresponding
1842 * CLR type, so hard-code its size/alignment.
1844 size = sizeof (MonoLMF);
1845 align = sizeof (mgreg_t);
1852 if (slot == 0xffffff) {
1854 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1855 * efficient copying (and to work around the fact that OP_MEMCPY
1856 * and OP_MEMSET ignores alignment).
1858 if (MONO_TYPE_ISSTRUCT (t)) {
1859 align = MAX (align, sizeof (gpointer));
1860 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1862 * Align the size too so the code generated for passing vtypes in
1863 * registers doesn't overwrite random locals.
1865 size = (size + (align - 1)) & ~(align -1);
1870 offset += align - 1;
1871 offset &= ~(align - 1);
1875 offset += align - 1;
1876 offset &= ~(align - 1);
1881 *stack_align = MAX (*stack_align, align);
1884 offsets [vmv->idx] = slot;
1887 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1888 if (scalar_stack_slots [i].active)
1889 g_list_free (scalar_stack_slots [i].active);
1891 for (i = 0; i < nvtypes; ++i) {
1892 if (vtype_stack_slots [i].active)
1893 g_list_free (vtype_stack_slots [i].active);
1896 cfg->stat_locals_stack_size += offset;
1898 *stack_size = offset;
1902 #define EMUL_HIT_SHIFT 3
1903 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1904 /* small hit bitmap cache */
1905 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1906 static short emul_opcode_num = 0;
1907 static short emul_opcode_alloced = 0;
1908 static short *emul_opcode_opcodes;
1909 static MonoJitICallInfo **emul_opcode_map;
1912 mono_find_jit_opcode_emulation (int opcode)
1914 g_assert (opcode >= 0 && opcode <= OP_LAST);
1915 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1917 for (i = 0; i < emul_opcode_num; ++i) {
1918 if (emul_opcode_opcodes [i] == opcode)
1919 return emul_opcode_map [i];
1926 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1928 MonoJitICallInfo *info;
1929 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1931 g_assert (!sig->hasthis);
1932 g_assert (sig->param_count < 3);
1934 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1935 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1937 if (emul_opcode_num >= emul_opcode_alloced) {
1938 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1939 emul_opcode_alloced += incr;
1940 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1941 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1943 emul_opcode_map [emul_opcode_num] = info;
1944 emul_opcode_opcodes [emul_opcode_num] = opcode;
1946 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1950 print_dfn (MonoCompile *cfg)
1958 char *method_name = mono_method_full_name (cfg->method, TRUE);
1959 g_print ("IR code for method %s\n", method_name);
1960 g_free (method_name);
1963 for (i = 0; i < cfg->num_bblocks; ++i) {
1964 bb = cfg->bblocks [i];
1965 /*if (bb->cil_code) {
1966 char* code1, *code2;
1967 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1968 if (bb->last_ins->cil_code)
1969 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1971 code2 = g_strdup ("");
1973 code1 [strlen (code1) - 1] = 0;
1974 code = g_strdup_printf ("%s -> %s", code1, code2);
1978 code = g_strdup ("\n");
1979 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1980 MONO_BB_FOR_EACH_INS (bb, c) {
1981 mono_print_ins_index (-1, c);
1984 g_print ("\tprev:");
1985 for (j = 0; j < bb->in_count; ++j) {
1986 g_print (" BB%d", bb->in_bb [j]->block_num);
1988 g_print ("\t\tsucc:");
1989 for (j = 0; j < bb->out_count; ++j) {
1990 g_print (" BB%d", bb->out_bb [j]->block_num);
1992 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1995 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1998 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
2000 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
2008 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
2010 MONO_ADD_INS (bb, inst);
2014 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2018 bb->code = ins_to_insert;
2020 /* Link with next */
2021 ins_to_insert->next = ins;
2023 ins->prev = ins_to_insert;
2025 if (bb->last_ins == NULL)
2026 bb->last_ins = ins_to_insert;
2028 /* Link with next */
2029 ins_to_insert->next = ins->next;
2031 ins->next->prev = ins_to_insert;
2033 /* Link with previous */
2034 ins->next = ins_to_insert;
2035 ins_to_insert->prev = ins;
2037 if (bb->last_ins == ins)
2038 bb->last_ins = ins_to_insert;
2043 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
2048 ins->prev = ins_to_insert;
2049 bb->code = ins_to_insert;
2050 ins_to_insert->next = ins;
2051 if (bb->last_ins == NULL)
2052 bb->last_ins = ins_to_insert;
2054 /* Link with previous */
2056 ins->prev->next = ins_to_insert;
2057 ins_to_insert->prev = ins->prev;
2059 /* Link with next */
2060 ins->prev = ins_to_insert;
2061 ins_to_insert->next = ins;
2063 if (bb->code == ins)
2064 bb->code = ins_to_insert;
2069 * mono_verify_bblock:
2071 * Verify that the next and prev pointers are consistent inside the instructions in BB.
2074 mono_verify_bblock (MonoBasicBlock *bb)
2076 MonoInst *ins, *prev;
2079 for (ins = bb->code; ins; ins = ins->next) {
2080 g_assert (ins->prev == prev);
2084 g_assert (!bb->last_ins->next);
2090 * Perform consistency checks on the JIT data structures and the IR
2093 mono_verify_cfg (MonoCompile *cfg)
2097 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2098 mono_verify_bblock (bb);
2102 mono_destroy_compile (MonoCompile *cfg)
2107 mono_metadata_free_mh (cfg->header);
2108 //mono_mempool_stats (cfg->mempool);
2109 mono_free_loop_info (cfg);
2111 mono_regstate_free (cfg->rs);
2113 g_hash_table_destroy (cfg->spvars);
2115 g_hash_table_destroy (cfg->exvars);
2116 for (l = cfg->headers_to_free; l; l = l->next)
2117 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
2118 g_list_free (cfg->ldstr_list);
2119 g_hash_table_destroy (cfg->token_info_hash);
2120 if (cfg->abs_patches)
2121 g_hash_table_destroy (cfg->abs_patches);
2122 mono_mempool_destroy (cfg->mempool);
2124 mono_debug_free_method (cfg);
2126 g_free (cfg->varinfo);
2128 g_free (cfg->exception_message);
2133 mono_create_tls_get_offset (MonoCompile *cfg, int offset)
2137 if (!cfg->backend->have_tls_get)
2143 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2144 ins->dreg = mono_alloc_preg (cfg);
2145 ins->inst_offset = offset;
2150 mini_tls_get_supported (MonoCompile *cfg, MonoTlsKey key)
2152 if (!cfg->backend->have_tls_get)
2155 if (cfg->compile_aot)
2156 return cfg->backend->have_tls_get_reg;
2158 return mini_get_tls_offset (key) != -1;
2162 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
2164 if (!cfg->backend->have_tls_get)
2168 * TLS offsets might be different at AOT time, so load them from a GOT slot and
2169 * use a different opcode.
2171 if (cfg->compile_aot) {
2172 if (cfg->backend->have_tls_get_reg) {
2175 EMIT_NEW_TLS_OFFSETCONST (cfg, c, key);
2176 MONO_INST_NEW (cfg, ins, OP_TLS_GET_REG);
2177 ins->dreg = mono_alloc_preg (cfg);
2178 ins->sreg1 = c->dreg;
2185 return mono_create_tls_get_offset (cfg, mini_get_tls_offset (key));
2189 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2191 return mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
2195 mono_get_domain_intrinsic (MonoCompile* cfg)
2197 return mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
2201 mono_get_thread_intrinsic (MonoCompile* cfg)
2203 return mono_create_tls_get (cfg, TLS_KEY_THREAD);
2207 mono_get_lmf_intrinsic (MonoCompile* cfg)
2209 return mono_create_tls_get (cfg, TLS_KEY_LMF);
2213 mono_get_lmf_addr_intrinsic (MonoCompile* cfg)
2215 return mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
2219 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2221 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2225 ji->data.target = target;
2226 ji->next = cfg->patch_info;
2228 cfg->patch_info = ji;
2232 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
2234 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2238 ji->relocation = relocation;
2239 ji->data.target = target;
2240 ji->next = cfg->patch_info;
2242 cfg->patch_info = ji;
2246 mono_remove_patch_info (MonoCompile *cfg, int ip)
2248 MonoJumpInfo **ji = &cfg->patch_info;
2251 if ((*ji)->ip.i == ip)
2254 ji = &((*ji)->next);
2259 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2261 ins->inst_offset = native_offset;
2262 g_ptr_array_add (cfg->seq_points, ins);
2264 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2265 bb->last_seq_point = ins;
2270 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2272 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2275 g_assert (offset == 0);
2277 entry->is_reg = is_reg;
2279 entry->offset = offset;
2283 if (var == cfg->args [0])
2284 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2285 else if (var == cfg->rgctx_var)
2286 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2290 mono_compile_create_vars (MonoCompile *cfg)
2292 MonoMethodSignature *sig;
2293 MonoMethodHeader *header;
2296 header = cfg->header;
2298 sig = mono_method_signature (cfg->method);
2300 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2301 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2302 /* Inhibit optimizations */
2303 cfg->ret->flags |= MONO_INST_VOLATILE;
2305 if (cfg->verbose_level > 2)
2306 g_print ("creating vars\n");
2308 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2311 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2313 for (i = 0; i < sig->param_count; ++i) {
2314 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2317 if (cfg->verbose_level > 2) {
2319 printf ("\treturn : ");
2320 mono_print_ins (cfg->ret);
2324 printf ("\tthis: ");
2325 mono_print_ins (cfg->args [0]);
2328 for (i = 0; i < sig->param_count; ++i) {
2329 printf ("\targ [%d]: ", i);
2330 mono_print_ins (cfg->args [i + sig->hasthis]);
2334 cfg->locals_start = cfg->num_varinfo;
2335 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2337 if (cfg->verbose_level > 2)
2338 g_print ("creating locals\n");
2340 for (i = 0; i < header->num_locals; ++i)
2341 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2343 if (cfg->verbose_level > 2)
2344 g_print ("locals done\n");
2347 if (COMPILE_LLVM (cfg))
2348 mono_llvm_create_vars (cfg);
2350 mono_arch_create_vars (cfg);
2352 mono_arch_create_vars (cfg);
2355 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2356 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2357 lmf_var->flags |= MONO_INST_VOLATILE;
2358 lmf_var->flags |= MONO_INST_LMF;
2359 cfg->lmf_var = lmf_var;
2364 mono_print_code (MonoCompile *cfg, const char* msg)
2368 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2369 mono_print_bb (bb, msg);
2373 mono_postprocess_patches (MonoCompile *cfg)
2375 MonoJumpInfo *patch_info;
2378 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2379 switch (patch_info->type) {
2380 case MONO_PATCH_INFO_ABS: {
2381 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2384 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2388 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2389 /* for these array methods we currently register the same function pointer
2390 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2391 * will return the incorrect one depending on the order they are registered.
2392 * See tests/test-arr.cs
2394 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2395 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2396 patch_info->data.name = info->name;
2400 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2401 if (cfg->abs_patches) {
2402 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2404 patch_info->type = abs_ji->type;
2405 patch_info->data.target = abs_ji->data.target;
2412 case MONO_PATCH_INFO_SWITCH: {
2414 #if defined(__native_client__) && defined(__native_client_codegen__)
2415 /* This memory will leak. */
2416 /* TODO: can we free this when */
2417 /* making the final jump table? */
2418 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2420 if (cfg->method->dynamic) {
2421 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2423 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2427 for (i = 0; i < patch_info->data.table->table_size; i++) {
2428 /* Might be NULL if the switch is eliminated */
2429 if (patch_info->data.table->table [i]) {
2430 g_assert (patch_info->data.table->table [i]->native_offset);
2431 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2436 patch_info->data.table->table = (MonoBasicBlock**)table;
2439 case MONO_PATCH_INFO_METHOD_JUMP: {
2440 MonoJumpList *jlist;
2441 MonoDomain *domain = cfg->domain;
2442 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2443 #if defined(__native_client__) && defined(__native_client_codegen__)
2444 /* When this jump target gets evaluated, the method */
2445 /* will be installed in the dynamic code section, */
2446 /* not at the location of cfg->native_code. */
2447 ip = nacl_inverse_modify_patch_target (cfg->native_code) + patch_info->ip.i;
2450 mono_domain_lock (domain);
2451 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2453 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2454 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2456 jlist->list = g_slist_prepend (jlist->list, ip);
2457 mono_domain_unlock (domain);
2468 mono_codegen (MonoCompile *cfg)
2471 int max_epilog_size;
2473 MonoDomain *code_domain;
2474 guint unwindlen = 0;
2476 if (mono_using_xdebug)
2478 * Recent gdb versions have trouble processing symbol files containing
2479 * overlapping address ranges, so allocate all code from the code manager
2480 * of the root domain. (#666152).
2482 code_domain = mono_get_root_domain ();
2484 code_domain = cfg->domain;
2486 #if defined(__native_client_codegen__) && defined(__native_client__)
2489 /* This keeps patch targets from being transformed during
2490 * ordinary method compilation, for local branches and jumps.
2492 nacl_allow_target_modification (FALSE);
2495 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2496 cfg->spill_count = 0;
2497 /* we reuse dfn here */
2498 /* bb->dfn = bb_count++; */
2500 mono_arch_lowering_pass (cfg, bb);
2502 if (cfg->opt & MONO_OPT_PEEPHOLE)
2503 mono_arch_peephole_pass_1 (cfg, bb);
2505 mono_local_regalloc (cfg, bb);
2507 if (cfg->opt & MONO_OPT_PEEPHOLE)
2508 mono_arch_peephole_pass_2 (cfg, bb);
2510 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2511 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2514 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2515 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2517 code = mono_arch_emit_prolog (cfg);
2519 cfg->code_len = code - cfg->native_code;
2520 cfg->prolog_end = cfg->code_len;
2521 cfg->cfa_reg = cfg->cur_cfa_reg;
2522 cfg->cfa_offset = cfg->cur_cfa_offset;
2524 mono_debug_open_method (cfg);
2526 /* emit code all basic blocks */
2527 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2528 bb->native_offset = cfg->code_len;
2529 bb->real_native_offset = cfg->code_len;
2530 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2531 mono_arch_output_basic_block (cfg, bb);
2532 bb->native_length = cfg->code_len - bb->native_offset;
2534 if (bb == cfg->bb_exit) {
2535 cfg->epilog_begin = cfg->code_len;
2536 mono_arch_emit_epilog (cfg);
2537 cfg->epilog_end = cfg->code_len;
2541 #ifdef __native_client_codegen__
2542 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2544 mono_arch_emit_exceptions (cfg);
2546 max_epilog_size = 0;
2548 /* we always allocate code in cfg->domain->code_mp to increase locality */
2549 cfg->code_size = cfg->code_len + max_epilog_size;
2550 #ifdef __native_client_codegen__
2551 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
2553 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2555 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2556 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2559 if (cfg->method->dynamic) {
2560 /* Allocate the code into a separate memory pool so it can be freed */
2561 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2562 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2563 mono_domain_lock (cfg->domain);
2564 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2565 mono_domain_unlock (cfg->domain);
2567 if (mono_using_xdebug)
2568 /* See the comment for cfg->code_domain */
2569 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2571 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2573 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2575 #if defined(__native_client_codegen__) && defined(__native_client__)
2576 nacl_allow_target_modification (TRUE);
2578 if (cfg->thunk_area) {
2579 cfg->thunks_offset = cfg->code_size + unwindlen;
2580 cfg->thunks = code + cfg->thunks_offset;
2581 memset (cfg->thunks, 0, cfg->thunk_area);
2585 memcpy (code, cfg->native_code, cfg->code_len);
2586 #if defined(__default_codegen__)
2587 g_free (cfg->native_code);
2588 #elif defined(__native_client_codegen__)
2589 if (cfg->native_code_alloc) {
2590 g_free (cfg->native_code_alloc);
2591 cfg->native_code_alloc = 0;
2593 else if (cfg->native_code) {
2594 g_free (cfg->native_code);
2596 #endif /* __native_client_codegen__ */
2597 cfg->native_code = code;
2598 code = cfg->native_code + cfg->code_len;
2600 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2601 mono_postprocess_patches (cfg);
2603 #ifdef VALGRIND_JIT_REGISTER_MAP
2604 if (valgrind_register){
2605 char* nm = mono_method_full_name (cfg->method, TRUE);
2606 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2611 if (cfg->verbose_level > 0) {
2612 char* nm = mono_method_get_full_name (cfg->method);
2613 char *opt_descr = mono_opt_descr (cfg->opt);
2614 g_print ("Method %s emitted at %p to %p (code length %d) [%s] with opts %s\n",
2616 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name,
2623 gboolean is_generic = FALSE;
2625 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2626 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
2631 g_assert (is_generic);
2634 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2635 mono_arch_save_unwind_info (cfg);
2638 #if defined(__native_client_codegen__) && defined(__native_client__)
2639 if (!cfg->compile_aot) {
2640 if (cfg->method->dynamic) {
2641 code_dest = nacl_code_manager_get_code_dest(cfg->dynamic_info->code_mp, cfg->native_code);
2643 code_dest = nacl_domain_get_code_dest(cfg->domain, cfg->native_code);
2648 #if defined(__native_client_codegen__)
2649 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2652 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2657 for (ji = cfg->patch_info; ji; ji = ji->next) {
2658 if (cfg->compile_aot) {
2660 case MONO_PATCH_INFO_BB:
2661 case MONO_PATCH_INFO_LABEL:
2664 /* No need to patch these */
2669 if (ji->type == MONO_PATCH_INFO_NONE)
2672 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2673 if (!mono_error_ok (&cfg->error)) {
2674 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2677 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2681 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
2684 if (cfg->method->dynamic) {
2685 if (mono_using_xdebug)
2686 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2688 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2690 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2692 #if defined(__native_client_codegen__) && defined(__native_client__)
2693 cfg->native_code = code_dest;
2695 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2697 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2699 mono_debug_close_method (cfg);
2701 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2702 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2707 compute_reachable (MonoBasicBlock *bb)
2711 if (!(bb->flags & BB_VISITED)) {
2712 bb->flags |= BB_VISITED;
2713 for (i = 0; i < bb->out_count; ++i)
2714 compute_reachable (bb->out_bb [i]);
2718 static void mono_bb_ordering (MonoCompile *cfg)
2721 /* Depth-first ordering on basic blocks */
2722 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2724 cfg->max_block_num = cfg->num_bblocks;
2726 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2727 if (cfg->num_bblocks != dfn + 1) {
2730 cfg->num_bblocks = dfn + 1;
2732 /* remove unreachable code, because the code in them may be
2733 * inconsistent (access to dead variables for example) */
2734 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2735 bb->flags &= ~BB_VISITED;
2736 compute_reachable (cfg->bb_entry);
2737 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2738 if (bb->flags & BB_EXCEPTION_HANDLER)
2739 compute_reachable (bb);
2740 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2741 if (!(bb->flags & BB_VISITED)) {
2742 if (cfg->verbose_level > 1)
2743 g_print ("found unreachable code in BB%d\n", bb->block_num);
2744 bb->code = bb->last_ins = NULL;
2745 while (bb->out_count)
2746 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2749 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2750 bb->flags &= ~BB_VISITED;
2755 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2758 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2759 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2761 MONO_INST_NEW (cfg, ins, OP_BR);
2762 MONO_ADD_INS (bb, ins);
2763 ins->inst_target_bb = bb->next_bb;
2769 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2772 MonoMethodHeader *header;
2774 MonoJitInfoFlags flags = JIT_INFO_NONE;
2775 int num_clauses, num_holes = 0;
2776 guint32 stack_size = 0;
2778 g_assert (method_to_compile == cfg->method);
2779 header = cfg->header;
2782 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2784 if (cfg->arch_eh_jit_info) {
2785 MonoJitArgumentInfo *arg_info;
2786 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2789 * This cannot be computed during stack walking, as
2790 * mono_arch_get_argument_info () is not signal safe.
2792 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2793 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2796 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2799 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2800 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2802 if (cfg->thunk_area)
2803 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2805 if (cfg->try_block_holes) {
2806 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2807 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2808 MonoExceptionClause *ec = hole->clause;
2809 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2810 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2811 g_assert (clause_last_bb);
2813 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2814 if (clause_last_bb->native_offset != hole_end)
2818 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2819 if (G_UNLIKELY (cfg->verbose_level >= 4))
2820 printf ("Number of try block holes %d\n", num_holes);
2823 if (COMPILE_LLVM (cfg))
2824 num_clauses = cfg->llvm_ex_info_len;
2826 num_clauses = header->num_clauses;
2828 if (cfg->method->dynamic)
2829 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2831 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2832 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2833 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2835 if (COMPILE_LLVM (cfg))
2836 jinfo->from_llvm = TRUE;
2840 MonoGenericJitInfo *gi;
2841 GSList *loclist = NULL;
2843 gi = mono_jit_info_get_generic_jit_info (jinfo);
2846 if (cfg->method->dynamic)
2847 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2849 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2850 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2852 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2853 mini_method_get_context (method_to_compile)->method_inst ||
2854 method_to_compile->klass->valuetype) {
2855 g_assert (cfg->rgctx_var);
2860 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2861 mini_method_get_context (method_to_compile)->method_inst ||
2862 method_to_compile->klass->valuetype) {
2863 inst = cfg->rgctx_var;
2864 if (!COMPILE_LLVM (cfg))
2865 g_assert (inst->opcode == OP_REGOFFSET);
2866 loclist = cfg->rgctx_loclist;
2868 inst = cfg->args [0];
2869 loclist = cfg->this_loclist;
2873 /* Needed to handle async exceptions */
2877 gi->nlocs = g_slist_length (loclist);
2878 if (cfg->method->dynamic)
2879 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2881 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2883 for (l = loclist; l; l = l->next) {
2884 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2889 if (COMPILE_LLVM (cfg)) {
2890 g_assert (cfg->llvm_this_reg != -1);
2891 gi->this_in_reg = 0;
2892 gi->this_reg = cfg->llvm_this_reg;
2893 gi->this_offset = cfg->llvm_this_offset;
2894 } else if (inst->opcode == OP_REGVAR) {
2895 gi->this_in_reg = 1;
2896 gi->this_reg = inst->dreg;
2898 g_assert (inst->opcode == OP_REGOFFSET);
2900 g_assert (inst->inst_basereg == X86_EBP);
2901 #elif defined(TARGET_AMD64)
2902 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2904 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2906 gi->this_in_reg = 0;
2907 gi->this_reg = inst->inst_basereg;
2908 gi->this_offset = inst->inst_offset;
2913 MonoTryBlockHoleTableJitInfo *table;
2916 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2917 table->num_holes = (guint16)num_holes;
2919 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2920 guint32 start_bb_offset;
2921 MonoTryBlockHoleJitInfo *hole;
2922 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2923 MonoExceptionClause *ec = hole_data->clause;
2924 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2925 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2926 g_assert (clause_last_bb);
2928 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2929 if (clause_last_bb->native_offset == hole_end)
2932 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2933 hole = &table->holes [i++];
2934 hole->clause = hole_data->clause - &header->clauses [0];
2935 hole->offset = (guint32)hole_data->start_offset;
2936 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2938 if (G_UNLIKELY (cfg->verbose_level >= 4))
2939 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2941 g_assert (i == num_holes);
2944 if (jinfo->has_arch_eh_info) {
2945 MonoArchEHJitInfo *info;
2947 info = mono_jit_info_get_arch_eh_info (jinfo);
2949 info->stack_size = stack_size;
2952 if (cfg->thunk_area) {
2953 MonoThunkJitInfo *info;
2955 info = mono_jit_info_get_thunk_info (jinfo);
2956 info->thunks_offset = cfg->thunks_offset;
2957 info->thunks_size = cfg->thunk_area;
2960 if (COMPILE_LLVM (cfg)) {
2962 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2963 } else if (header->num_clauses) {
2966 for (i = 0; i < header->num_clauses; i++) {
2967 MonoExceptionClause *ec = &header->clauses [i];
2968 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2969 MonoBasicBlock *tblock;
2970 MonoInst *exvar, *spvar;
2972 ei->flags = ec->flags;
2974 if (G_UNLIKELY (cfg->verbose_level >= 4))
2975 printf ("IL clause: try 0x%x-0x%x handler 0x%x-0x%x filter 0x%x\n", ec->try_offset, ec->try_offset + ec->try_len, ec->handler_offset, ec->handler_offset + ec->handler_len, ec->flags == MONO_EXCEPTION_CLAUSE_FILTER ? ec->data.filter_offset : 0);
2978 * The spvars are needed by mono_arch_install_handler_block_guard ().
2980 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2983 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2984 spvar = mono_find_spvar_for_region (cfg, region);
2986 ei->exvar_offset = spvar->inst_offset;
2988 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2989 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2992 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2993 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2995 ei->data.filter = cfg->native_code + tblock->native_offset;
2997 ei->data.catch_class = ec->data.catch_class;
3000 tblock = cfg->cil_offset_to_bb [ec->try_offset];
3002 g_assert (tblock->native_offset);
3003 ei->try_start = cfg->native_code + tblock->native_offset;
3004 if (tblock->extend_try_block) {
3006 * Extend the try block backwards to include parts of the previous call
3009 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
3011 if (ec->try_offset + ec->try_len < header->code_size)
3012 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
3014 tblock = cfg->bb_exit;
3015 if (G_UNLIKELY (cfg->verbose_level >= 4))
3016 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
3018 if (!tblock->native_offset) {
3020 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
3021 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
3022 if (bb && bb->native_offset) {
3028 ei->try_end = cfg->native_code + tblock->native_offset;
3029 g_assert (tblock->native_offset);
3030 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
3032 ei->handler_start = cfg->native_code + tblock->native_offset;
3034 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
3035 TryBlockHole *hole = (TryBlockHole *)tmp->data;
3036 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
3037 if (hole->clause == ec && hole_end == ei->try_end) {
3038 if (G_UNLIKELY (cfg->verbose_level >= 4))
3039 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
3041 ei->try_end = cfg->native_code + hole->start_offset;
3046 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
3048 if (ec->handler_offset + ec->handler_len < header->code_size) {
3049 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
3050 if (tblock->native_offset) {
3051 end_offset = tblock->native_offset;
3055 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
3056 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
3057 if (bb && bb->native_offset) {
3062 end_offset = tblock->native_offset + tblock->native_length;
3065 end_offset = cfg->epilog_begin;
3067 ei->data.handler_end = cfg->native_code + end_offset;
3072 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
3074 for (i = 0; i < jinfo->num_clauses; i++) {
3075 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
3076 int start = (guint8*)ei->try_start - cfg->native_code;
3077 int end = (guint8*)ei->try_end - cfg->native_code;
3078 int handler = (guint8*)ei->handler_start - cfg->native_code;
3079 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
3081 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
3085 if (cfg->encoded_unwind_ops) {
3086 /* Generated by LLVM */
3087 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
3088 g_free (cfg->encoded_unwind_ops);
3089 } else if (cfg->unwind_ops) {
3091 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
3092 guint32 unwind_desc;
3094 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
3096 if (cfg->has_unwind_info_for_epilog) {
3097 MonoArchEHJitInfo *info;
3099 info = mono_jit_info_get_arch_eh_info (jinfo);
3101 info->epilog_size = cfg->code_len - cfg->epilog_begin;
3103 jinfo->unwind_info = unwind_desc;
3104 g_free (unwind_info);
3106 jinfo->unwind_info = cfg->used_int_regs;
3112 /* Return whenever METHOD is a gsharedvt method */
3114 is_gsharedvt_method (MonoMethod *method)
3116 MonoGenericContext *context;
3117 MonoGenericInst *inst;
3120 if (!method->is_inflated)
3122 context = mono_method_get_context (method);
3123 inst = context->class_inst;
3125 for (i = 0; i < inst->type_argc; ++i)
3126 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
3129 inst = context->method_inst;
3131 for (i = 0; i < inst->type_argc; ++i)
3132 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
3139 is_open_method (MonoMethod *method)
3141 MonoGenericContext *context;
3143 if (!method->is_inflated)
3145 context = mono_method_get_context (method);
3146 if (context->class_inst && context->class_inst->is_open)
3148 if (context->method_inst && context->method_inst->is_open)
3154 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
3156 MonoInst *poll_addr, *ins;
3157 if (cfg->verbose_level > 1)
3158 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
3160 #if defined(__native_client_codegen__)
3161 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
3163 g_assert (mono_threads_is_coop_enabled ());
3164 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
3167 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
3168 ins->sreg1 = poll_addr->dreg;
3170 if (bblock->flags & BB_EXCEPTION_HANDLER) {
3171 MonoInst *eh_op = bblock->code;
3173 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
3176 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
3177 // skip all EH relateds ops
3178 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
3180 next_eh_op = eh_op->next;
3184 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
3185 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3186 } else if (bblock == cfg->bb_entry) {
3187 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
3188 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3191 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
3192 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3197 This code inserts safepoints into managed code at important code paths.
3200 -the first basic block
3201 -landing BB for exception handlers
3206 mono_insert_safepoints (MonoCompile *cfg)
3210 #if !defined(__native_client_codegen__)
3211 if (!mono_threads_is_coop_enabled ())
3215 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3216 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3217 #if defined(__native_client__) || defined(__native_client_codegen__)
3218 gpointer poll_func = &mono_nacl_gc;
3220 g_assert (mono_threads_is_coop_enabled ());
3221 gpointer poll_func = &mono_threads_state_poll;
3224 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
3225 if (cfg->verbose_level > 1)
3226 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
3231 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
3232 if (cfg->verbose_level > 1)
3233 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
3237 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3238 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3240 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
3241 (info->d.icall.func == mono_thread_interruption_checkpoint ||
3242 info->d.icall.func == mono_threads_finish_blocking ||
3243 info->d.icall.func == mono_threads_reset_blocking_start)) {
3244 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
3245 if (cfg->verbose_level > 1)
3246 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
3251 if (cfg->verbose_level > 1)
3252 printf ("INSERTING SAFEPOINTS\n");
3253 if (cfg->verbose_level > 2)
3254 mono_print_code (cfg, "BEFORE SAFEPOINTS");
3256 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3257 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
3258 mono_create_gc_safepoint (cfg, bb);
3261 if (cfg->verbose_level > 2)
3262 mono_print_code (cfg, "AFTER SAFEPOINTS");
3268 mono_insert_branches_between_bblocks (MonoCompile *cfg)
3272 /* Add branches between non-consecutive bblocks */
3273 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3274 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3275 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3276 /* we are careful when inverting, since bugs like #59580
3277 * could show up when dealing with NaNs.
3279 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3280 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3281 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3282 bb->last_ins->inst_false_bb = tmp;
3284 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3286 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3287 inst->opcode = OP_BR;
3288 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3289 mono_bblock_add_inst (bb, inst);
3294 if (cfg->verbose_level >= 4) {
3295 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3296 MonoInst *tree = bb->code;
3297 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3300 for (; tree; tree = tree->next) {
3301 mono_print_ins_index (-1, tree);
3307 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3308 bb->max_vreg = cfg->next_vreg;
3313 init_backend (MonoBackend *backend)
3315 #ifdef MONO_ARCH_NEED_GOT_VAR
3316 backend->need_got_var = 1;
3318 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
3319 backend->have_card_table_wb = 1;
3321 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3322 backend->have_op_generic_class_init = 1;
3324 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3325 backend->emulate_mul_div = 1;
3327 #ifdef MONO_ARCH_EMULATE_DIV
3328 backend->emulate_div = 1;
3330 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3331 backend->emulate_long_shift_opts = 1;
3333 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3334 backend->have_objc_get_selector = 1;
3336 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK
3337 backend->have_generalized_imt_thunk = 1;
3339 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3340 backend->gshared_supported = 1;
3342 if (MONO_ARCH_HAVE_TLS_GET)
3343 backend->have_tls_get = 1;
3344 #ifdef MONO_ARCH_HAVE_TLS_GET_REG
3345 backend->have_tls_get_reg = 1;
3347 if (MONO_ARCH_USE_FPSTACK)
3348 backend->use_fpstack = 1;
3349 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3350 backend->have_liverange_ops = 1;
3352 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3353 backend->have_op_tail_call = 1;
3355 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3356 backend->monitor_enter_adjustment = 1;
3358 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3360 #if defined(__mono_ilp32__)
3363 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3364 backend->have_dummy_init = 1;
3366 #ifdef MONO_ARCH_NEED_DIV_CHECK
3367 backend->need_div_check = 1;
3369 #ifdef NO_UNALIGNED_ACCESS
3370 backend->no_unaligned_access = 1;
3372 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3373 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3378 * mini_method_compile:
3379 * @method: the method to compile
3380 * @opts: the optimization flags to use
3381 * @domain: the domain where the method will be compiled in
3382 * @flags: compilation flags
3383 * @parts: debug flag
3385 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3386 * field in the returned struct to see if compilation succeded.
3389 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3391 MonoMethodHeader *header;
3392 MonoMethodSignature *sig;
3395 int i, code_size_ratio;
3396 gboolean try_generic_shared, try_llvm = FALSE;
3397 MonoMethod *method_to_compile, *method_to_register;
3398 gboolean method_is_gshared = FALSE;
3399 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3400 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3401 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3402 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3403 gboolean gsharedvt_method = FALSE;
3405 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3407 static gboolean verbose_method_inited;
3408 static const char *verbose_method_name;
3410 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3411 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3412 mono_profiler_method_jit (method);
3413 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3414 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3416 gsharedvt_method = is_gsharedvt_method (method);
3419 * In AOT mode, method can be the following:
3420 * - a gsharedvt method.
3421 * - a method inflated with type parameters. This is for ref/partial sharing.
3422 * - a method inflated with concrete types.
3425 if (is_open_method (method)) {
3426 try_generic_shared = TRUE;
3427 method_is_gshared = TRUE;
3429 try_generic_shared = FALSE;
3431 g_assert (opts & MONO_OPT_GSHARED);
3433 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3434 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3435 if (mini_is_gsharedvt_sharable_method (method)) {
3437 if (!mono_debug_count ())
3438 try_generic_shared = FALSE;
3444 if (try_generic_shared && !mono_debug_count ())
3445 try_generic_shared = FALSE;
3448 if (opts & MONO_OPT_GSHARED) {
3449 if (try_generic_shared)
3450 mono_stats.generics_sharable_methods++;
3451 else if (mono_method_is_generic_impl (method))
3452 mono_stats.generics_unsharable_methods++;
3456 try_llvm = mono_use_llvm || llvm;
3460 if (method_is_gshared) {
3461 method_to_compile = method;
3463 if (try_generic_shared) {
3464 method_to_compile = mini_get_shared_method (method);
3465 g_assert (method_to_compile);
3467 method_to_compile = method;
3471 cfg = g_new0 (MonoCompile, 1);
3472 cfg->method = method_to_compile;
3473 cfg->mempool = mono_mempool_new ();
3475 cfg->prof_options = mono_profiler_get_events ();
3476 cfg->run_cctors = run_cctors;
3477 cfg->domain = domain;
3478 cfg->verbose_level = mini_verbose;
3479 cfg->compile_aot = compile_aot;
3480 cfg->full_aot = full_aot;
3481 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3482 cfg->skip_visibility = method->skip_visibility;
3483 cfg->orig_method = method;
3484 cfg->gen_seq_points = debug_options.gen_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3485 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3486 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3487 cfg->backend = current_backend;
3489 #ifdef PLATFORM_ANDROID
3490 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3491 /* FIXME: Why is this needed */
3492 cfg->gen_seq_points = FALSE;
3493 cfg->gen_sdb_seq_points = FALSE;
3496 /* coop / nacl requires loop detection to happen */
3497 #if defined(__native_client_codegen__)
3498 cfg->opt |= MONO_OPT_LOOP;
3500 if (mono_threads_is_coop_enabled ())
3501 cfg->opt |= MONO_OPT_LOOP;
3503 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3504 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3505 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3506 cfg->disable_direct_icalls = disable_direct_icalls;
3507 if (try_generic_shared)
3508 cfg->gshared = TRUE;
3509 cfg->compile_llvm = try_llvm;
3510 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3511 if (cfg->compile_aot)
3512 cfg->method_index = aot_method_index;
3515 if (!mono_debug_count ())
3516 cfg->opt &= ~MONO_OPT_FLOAT32;
3519 cfg->opt &= ~MONO_OPT_SIMD;
3520 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3521 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3523 if (cfg->gen_seq_points)
3524 cfg->seq_points = g_ptr_array_new ();
3525 mono_error_init (&cfg->error);
3527 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container || method_is_gshared)) {
3528 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3532 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3533 MonoMethodInflated *inflated;
3534 MonoGenericContext *context;
3536 if (gsharedvt_method) {
3537 g_assert (method->is_inflated);
3538 inflated = (MonoMethodInflated*)method;
3539 context = &inflated->context;
3541 /* We are compiling a gsharedvt method directly */
3542 g_assert (compile_aot);
3544 g_assert (method_to_compile->is_inflated);
3545 inflated = (MonoMethodInflated*)method_to_compile;
3546 context = &inflated->context;
3549 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3550 cfg->gsctx_context = context;
3552 cfg->gsharedvt = TRUE;
3553 if (!cfg->llvm_only) {
3554 cfg->disable_llvm = TRUE;
3555 cfg->exception_message = g_strdup ("gsharedvt");
3560 method_to_register = method_to_compile;
3562 g_assert (method == method_to_compile);
3563 method_to_register = method;
3565 cfg->method_to_register = method_to_register;
3567 mono_error_init (&err);
3568 sig = mono_method_signature_checked (cfg->method, &err);
3570 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3571 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3572 mono_error_cleanup (&err);
3573 if (MONO_METHOD_COMPILE_END_ENABLED ())
3574 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3578 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3580 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3581 if (MONO_METHOD_COMPILE_END_ENABLED ())
3582 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3588 static gboolean inited;
3594 * Check for methods which cannot be compiled by LLVM early, to avoid
3595 * the extra compilation pass.
3597 if (COMPILE_LLVM (cfg)) {
3598 mono_llvm_check_method_supported (cfg);
3599 if (cfg->disable_llvm) {
3600 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3601 //nm = mono_method_full_name (cfg->method, TRUE);
3602 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3605 if (cfg->llvm_only) {
3606 cfg->disable_aot = TRUE;
3609 mono_destroy_compile (cfg);
3611 goto restart_compile;
3617 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3618 if (debug_options.mdb_optimizations) {
3619 cfg->disable_reuse_registers = TRUE;
3620 cfg->disable_reuse_stack_slots = TRUE;
3622 * This decreases the change the debugger will read registers/stack slots which are
3623 * not yet initialized.
3625 cfg->disable_initlocals_opt = TRUE;
3627 cfg->extend_live_ranges = TRUE;
3629 /* The debugger needs all locals to be on the stack or in a global register */
3630 cfg->disable_vreg_to_lvreg = TRUE;
3632 /* Don't remove unused variables when running inside the debugger since the user
3633 * may still want to view them. */
3634 cfg->disable_deadce_vars = TRUE;
3636 cfg->opt &= ~MONO_OPT_DEADCE;
3637 cfg->opt &= ~MONO_OPT_INLINE;
3638 cfg->opt &= ~MONO_OPT_COPYPROP;
3639 cfg->opt &= ~MONO_OPT_CONSPROP;
3641 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3642 cfg->disable_out_of_line_bblocks = TRUE;
3645 if (mono_using_xdebug) {
3647 * Make each variable use its own register/stack slot and extend
3648 * their liveness to cover the whole method, making them displayable
3649 * in gdb even after they are dead.
3651 cfg->disable_reuse_registers = TRUE;
3652 cfg->disable_reuse_stack_slots = TRUE;
3653 cfg->extend_live_ranges = TRUE;
3654 cfg->compute_precise_live_ranges = TRUE;
3657 mini_gc_init_cfg (cfg);
3659 if (COMPILE_LLVM (cfg)) {
3660 cfg->opt |= MONO_OPT_ABCREM;
3663 if (!verbose_method_inited) {
3664 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3665 verbose_method_inited = TRUE;
3667 if (verbose_method_name) {
3668 const char *name = verbose_method_name;
3670 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3671 MonoMethodDesc *desc;
3673 desc = mono_method_desc_new (name, TRUE);
3674 if (mono_method_desc_full_match (desc, cfg->method)) {
3675 cfg->verbose_level = 4;
3677 mono_method_desc_free (desc);
3679 if (strcmp (cfg->method->name, name) == 0)
3680 cfg->verbose_level = 4;
3684 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3686 if (cfg->verbose_level > 0) {
3689 method_name = mono_method_get_full_name (method);
3690 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3692 if (COMPILE_LLVM (cfg))
3693 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3694 else if (cfg->gsharedvt)
3695 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3696 else if (cfg->gshared)
3697 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3699 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3701 g_free (method_name);
3704 if (cfg->opt & MONO_OPT_ABCREM)
3705 cfg->opt |= MONO_OPT_SSA;
3707 cfg->rs = mono_regstate_new ();
3708 cfg->next_vreg = cfg->rs->next_vreg;
3710 /* FIXME: Fix SSA to handle branches inside bblocks */
3711 if (cfg->opt & MONO_OPT_SSA)
3712 cfg->enable_extended_bblocks = FALSE;
3715 * FIXME: This confuses liveness analysis because variables which are assigned after
3716 * a branch inside a bblock become part of the kill set, even though the assignment
3717 * might not get executed. This causes the optimize_initlocals pass to delete some
3718 * assignments which are needed.
3719 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3722 //cfg->enable_extended_bblocks = TRUE;
3724 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3725 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3726 if (mini_get_debug_options ()->break_on_unverified)
3732 * create MonoInst* which represents arguments and local variables
3734 mono_compile_create_vars (cfg);
3736 MONO_TIME_TRACK (mono_jit_stats.jit_method_to_ir, i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, 0, FALSE));
3739 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3741 if (MONO_METHOD_COMPILE_END_ENABLED ())
3742 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3745 mono_destroy_compile (cfg);
3746 try_generic_shared = FALSE;
3747 goto restart_compile;
3749 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3751 if (MONO_METHOD_COMPILE_END_ENABLED ())
3752 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3753 /* cfg contains the details of the failure, so let the caller cleanup */
3757 cfg->stat_basic_blocks += cfg->num_bblocks;
3759 if (COMPILE_LLVM (cfg)) {
3762 /* The IR has to be in SSA form for LLVM */
3763 cfg->opt |= MONO_OPT_SSA;
3767 // Allow SSA on the result value
3768 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3770 // Add an explicit return instruction referencing the return value
3771 MONO_INST_NEW (cfg, ins, OP_SETRET);
3772 ins->sreg1 = cfg->ret->dreg;
3774 MONO_ADD_INS (cfg->bb_exit, ins);
3777 cfg->opt &= ~MONO_OPT_LINEARS;
3780 cfg->opt &= ~MONO_OPT_BRANCH;
3783 /* todo: remove code when we have verified that the liveness for try/catch blocks
3787 * Currently, this can't be commented out since exception blocks are not
3788 * processed during liveness analysis.
3789 * It is also needed, because otherwise the local optimization passes would
3790 * delete assignments in cases like this:
3792 * <something which throws>
3794 * This also allows SSA to be run on methods containing exception clauses, since
3795 * SSA will ignore variables marked VOLATILE.
3797 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3799 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3801 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3803 if (!COMPILE_LLVM (cfg)) {
3804 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3807 /* Should be done before branch opts */
3808 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
3809 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3812 * Should be done after cprop which can do strength reduction on
3813 * some of these ops, after propagating immediates.
3815 if (cfg->has_emulated_ops)
3816 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3818 if (cfg->opt & MONO_OPT_BRANCH)
3819 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3821 /* This must be done _before_ global reg alloc and _after_ decompose */
3822 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3823 if (cfg->opt & MONO_OPT_DEADCE)
3824 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3825 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS)
3826 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3827 /* Disable this for LLVM to make the IR easier to handle */
3828 if (!COMPILE_LLVM (cfg))
3829 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3831 mono_threads_safepoint ();
3833 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3835 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3837 * we disable some optimizations if there are too many variables
3838 * because JIT time may become too expensive. The actual number needs
3839 * to be tweaked and eventually the non-linear algorithms should be fixed.
3841 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3842 cfg->disable_ssa = TRUE;
3845 if (cfg->opt & MONO_OPT_LOOP) {
3846 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3847 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3850 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3852 /* after method_to_ir */
3854 if (MONO_METHOD_COMPILE_END_ENABLED ())
3855 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3860 if (header->num_clauses)
3861 cfg->disable_ssa = TRUE;
3864 //#define DEBUGSSA "logic_run"
3865 //#define DEBUGSSA_CLASS "Tests"
3868 if (!cfg->disable_ssa) {
3869 mono_local_cprop (cfg);
3872 mono_ssa_compute (cfg);
3876 if (cfg->opt & MONO_OPT_SSA) {
3877 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3879 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3882 if (cfg->verbose_level >= 2) {
3889 /* after SSA translation */
3891 if (MONO_METHOD_COMPILE_END_ENABLED ())
3892 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3896 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3897 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3899 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3905 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3906 //mono_ssa_strength_reduction (cfg);
3908 if (cfg->opt & MONO_OPT_DEADCE)
3909 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3911 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
3912 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3914 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3915 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3916 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3917 if (cfg->opt & MONO_OPT_DEADCE)
3918 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3920 if (cfg->opt & MONO_OPT_BRANCH)
3921 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3925 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3926 mono_ssa_loop_invariant_code_motion (cfg);
3927 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3928 if (cfg->opt & MONO_OPT_ABCREM)
3929 mono_perform_abc_removal (cfg);
3932 /* after SSA removal */
3934 if (MONO_METHOD_COMPILE_END_ENABLED ())
3935 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3939 if (cfg->llvm_only && cfg->gsharedvt)
3940 mono_ssa_remove_gsharedvt (cfg);
3942 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3943 if (COMPILE_SOFT_FLOAT (cfg))
3944 mono_decompose_soft_float (cfg);
3946 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3947 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3948 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3951 #ifndef MONO_ARCH_GOT_REG
3956 g_assert (cfg->got_var_allocated);
3959 * Allways allocate the GOT var to a register, because keeping it
3960 * in memory will increase the number of live temporaries in some
3961 * code created by inssel.brg, leading to the well known spills+
3962 * branches problem. Testcase: mcs crash in
3963 * System.MonoCustomAttrs:GetCustomAttributes.
3965 #ifdef MONO_ARCH_GOT_REG
3966 got_reg = MONO_ARCH_GOT_REG;
3968 regs = mono_arch_get_global_int_regs (cfg);
3970 got_reg = GPOINTER_TO_INT (regs->data);
3973 cfg->got_var->opcode = OP_REGVAR;
3974 cfg->got_var->dreg = got_reg;
3975 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3979 * Have to call this again to process variables added since the first call.
3981 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3983 if (cfg->opt & MONO_OPT_LINEARS) {
3984 GList *vars, *regs, *l;
3986 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3987 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3988 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3989 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3991 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3992 regs = mono_arch_get_global_int_regs (cfg);
3993 /* Remove the reg reserved for holding the GOT address */
3995 for (l = regs; l; l = l->next) {
3996 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3997 regs = g_list_delete_link (regs, l);
4002 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
4006 //mono_print_code (cfg, "");
4010 /* variables are allocated after decompose, since decompose could create temps */
4011 if (!COMPILE_LLVM (cfg)) {
4012 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
4013 if (cfg->exception_type)
4018 mono_allocate_gsharedvt_vars (cfg);
4020 if (!COMPILE_LLVM (cfg)) {
4021 gboolean need_local_opts;
4022 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
4024 if (need_local_opts || cfg->compile_aot) {
4025 /* To optimize code created by spill_global_vars */
4026 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
4027 if (cfg->opt & MONO_OPT_DEADCE)
4028 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
4032 mono_insert_branches_between_bblocks (cfg);
4034 if (COMPILE_LLVM (cfg)) {
4038 /* The IR has to be in SSA form for LLVM */
4039 if (!(cfg->comp_done & MONO_COMP_SSA)) {
4040 cfg->exception_message = g_strdup ("SSA disabled.");
4041 cfg->disable_llvm = TRUE;
4044 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
4045 mono_decompose_array_access_opts (cfg);
4047 if (!cfg->disable_llvm)
4048 mono_llvm_emit_method (cfg);
4049 if (cfg->disable_llvm) {
4050 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
4051 //nm = mono_method_full_name (cfg->method, TRUE);
4052 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
4055 if (cfg->llvm_only) {
4056 cfg->disable_aot = TRUE;
4059 mono_destroy_compile (cfg);
4061 goto restart_compile;
4064 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
4065 nm = mono_method_full_name (cfg->method, TRUE);
4066 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
4068 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
4073 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
4074 if (cfg->exception_type)
4078 if (COMPILE_LLVM (cfg))
4079 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
4081 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
4083 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
4085 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
4086 if (cfg->extend_live_ranges) {
4087 /* Extend live ranges to cover the whole method */
4088 for (i = 0; i < cfg->num_varinfo; ++i)
4089 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
4093 if (!cfg->compile_aot)
4094 mono_save_xdebug_info (cfg);
4096 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
4098 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
4100 if (cfg->verbose_level >= 2) {
4101 char *id = mono_method_full_name (cfg->method, FALSE);
4102 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
4106 if (!cfg->compile_aot) {
4107 mono_domain_lock (cfg->domain);
4108 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
4110 if (cfg->method->dynamic)
4111 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
4112 mono_domain_unlock (cfg->domain);
4117 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
4120 /* collect statistics */
4121 #ifndef DISABLE_PERFCOUNTERS
4122 mono_perfcounters->jit_methods++;
4123 mono_perfcounters->jit_bytes += header->code_size;
4125 mono_jit_stats.allocated_code_size += cfg->code_len;
4126 code_size_ratio = cfg->code_len;
4127 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
4128 mono_jit_stats.biggest_method_size = code_size_ratio;
4129 g_free (mono_jit_stats.biggest_method);
4130 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4132 code_size_ratio = (code_size_ratio * 100) / header->code_size;
4133 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
4134 mono_jit_stats.max_code_size_ratio = code_size_ratio;
4135 g_free (mono_jit_stats.max_ratio_method);
4136 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4138 mono_jit_stats.native_code_size += cfg->code_len;
4140 if (MONO_METHOD_COMPILE_END_ENABLED ())
4141 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4147 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
4149 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
4153 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
4155 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
4156 hole->clause = clause;
4157 hole->start_offset = start - cfg->native_code;
4158 hole->basic_block = bb;
4160 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
4164 mono_cfg_set_exception (MonoCompile *cfg, int type)
4166 cfg->exception_type = type;
4169 /* Assumes ownership of the MSG argument */
4171 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
4173 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
4174 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", msg);
4177 #endif /* DISABLE_JIT */
4180 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
4182 MonoDomain *domain = mono_get_root_domain ();
4187 if (info->uw_info) {
4188 uw_info = info->uw_info;
4189 info_len = info->uw_info_len;
4191 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
4194 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
4195 jinfo->d.method = wrapper;
4196 jinfo->code_start = info->code;
4197 jinfo->code_size = info->code_size;
4198 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
4206 GTimer *mono_time_track_start ()
4208 return g_timer_new ();
4211 void mono_time_track_end (double *time, GTimer *timer)
4213 g_timer_stop (timer);
4214 *time += g_timer_elapsed (timer, NULL);
4215 g_timer_destroy (timer);
4218 void mono_update_jit_stats (MonoCompile *cfg)
4220 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4221 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4222 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4223 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4224 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4225 mono_jit_stats.regvars += cfg->stat_n_regvars;
4226 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4227 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4228 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4232 * mono_jit_compile_method_inner:
4234 * Main entry point for the JIT.
4237 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4240 gpointer code = NULL;
4241 MonoJitInfo *jinfo, *info;
4243 MonoException *ex = NULL;
4244 guint32 prof_options;
4246 MonoMethod *prof_method, *shared;
4248 mono_error_init (error);
4250 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4251 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4253 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4255 if (!piinfo->addr) {
4256 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4257 piinfo->addr = mono_lookup_internal_call (method);
4258 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4260 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);
4262 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);
4265 mono_lookup_pinvoke_call (method, NULL, NULL);
4267 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4268 code = mono_get_addr_from_ftnptr (mono_compile_method (nm));
4269 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4271 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4273 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4275 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4276 const char *name = method->name;
4277 char *full_name, *msg;
4280 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4281 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4282 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
4285 * We need to make sure this wrapper
4286 * is compiled because it might end up
4287 * in an (M)RGCTX if generic sharing
4288 * is enabled, and would be called
4289 * indirectly. If it were a
4290 * trampoline we'd try to patch that
4291 * indirect call, which is not
4294 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4295 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4296 if (mono_llvm_only) {
4297 nm = mono_marshal_get_delegate_invoke (method, NULL);
4298 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4300 return mono_create_delegate_trampoline (target_domain, method->klass);
4301 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4302 nm = mono_marshal_get_delegate_begin_invoke (method);
4303 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4304 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4305 nm = mono_marshal_get_delegate_end_invoke (method);
4306 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4310 full_name = mono_method_full_name (method, TRUE);
4311 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4312 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4313 mono_error_set_exception_instance (error, ex);
4319 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4320 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4322 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4323 static MonoTrampInfo *in_tinfo, *out_tinfo;
4324 MonoTrampInfo *tinfo;
4326 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4328 if (is_in && in_tinfo)
4329 return in_tinfo->code;
4330 else if (!is_in && out_tinfo)
4331 return out_tinfo->code;
4334 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4336 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4339 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4341 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4342 jinfo = create_jit_info_for_trampoline (method, tinfo);
4343 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4352 if (mono_aot_only) {
4353 char *fullname = mono_method_full_name (method, TRUE);
4354 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);
4356 ex = mono_get_exception_execution_engine (msg);
4357 mono_error_set_exception_instance (error, ex);
4364 jit_timer = mono_time_track_start ();
4365 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4366 mono_time_track_end (&mono_jit_stats.jit_time, jit_timer);
4368 prof_method = cfg->method;
4370 switch (cfg->exception_type) {
4371 case MONO_EXCEPTION_NONE:
4373 case MONO_EXCEPTION_TYPE_LOAD:
4374 case MONO_EXCEPTION_MISSING_FIELD:
4375 case MONO_EXCEPTION_MISSING_METHOD:
4376 case MONO_EXCEPTION_FILE_NOT_FOUND:
4377 case MONO_EXCEPTION_BAD_IMAGE: {
4378 /* Throw a type load exception if needed */
4379 if (cfg->exception_ptr) {
4380 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4382 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4383 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4384 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4385 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4386 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4387 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4388 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4389 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4390 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4391 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4393 g_assert_not_reached ();
4397 case MONO_EXCEPTION_MONO_ERROR:
4398 // FIXME: MonoError has no copy ctor
4399 g_assert (!mono_error_ok (&cfg->error));
4400 ex = mono_error_convert_to_exception (&cfg->error);
4403 g_assert_not_reached ();
4407 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4408 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4410 mono_destroy_compile (cfg);
4411 mono_error_set_exception_instance (error, ex);
4416 if (mono_method_is_generic_sharable (method, FALSE))
4417 shared = mini_get_shared_method (method);
4421 mono_domain_lock (target_domain);
4423 /* Check if some other thread already did the job. In this case, we can
4424 discard the code this thread generated. */
4426 info = mini_lookup_method (target_domain, method, shared);
4428 /* We can't use a domain specific method in another domain */
4429 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4430 code = info->code_start;
4431 // printf("Discarding code for method %s\n", method->name);
4435 /* The lookup + insert is atomic since this is done inside the domain lock */
4436 mono_domain_jit_code_hash_lock (target_domain);
4437 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4438 mono_domain_jit_code_hash_unlock (target_domain);
4440 code = cfg->native_code;
4442 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4443 mono_stats.generics_shared_methods++;
4445 mono_stats.gsharedvt_methods++;
4448 jinfo = cfg->jit_info;
4450 prof_options = cfg->prof_options;
4453 * Update global stats while holding a lock, instead of doing many
4454 * InterlockedIncrement operations during JITting.
4456 mono_update_jit_stats (cfg);
4458 mono_destroy_compile (cfg);
4461 if (domain_jit_info (target_domain)->jump_target_hash) {
4462 MonoJumpInfo patch_info;
4463 MonoJumpList *jlist;
4465 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4467 patch_info.next = NULL;
4468 patch_info.ip.i = 0;
4469 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4470 patch_info.data.method = method;
4471 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4473 #if defined(__native_client_codegen__) && defined(__native_client__)
4474 /* These patches are applied after a method has been installed, no target munging is needed. */
4475 nacl_allow_target_modification (FALSE);
4477 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4478 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4479 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4480 if (!mono_error_ok (error))
4482 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4485 for (tmp = jlist->list; tmp; tmp = tmp->next)
4486 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE);
4488 #if defined(__native_client_codegen__) && defined(__native_client__)
4489 nacl_allow_target_modification (TRUE);
4494 /* Update llvm callees */
4495 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4496 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4499 for (l = callees; l; l = l->next) {
4500 gpointer *addr = (gpointer*)l->data;
4506 mono_emit_jit_map (jinfo);
4508 mono_domain_unlock (target_domain);
4510 if (!mono_error_ok (error))
4513 vtable = mono_class_vtable (target_domain, method->klass);
4515 ex = mono_class_get_exception_for_failure (method->klass);
4517 mono_error_set_exception_instance (error, ex);
4521 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4522 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4523 if (mono_marshal_method_from_wrapper (method)) {
4524 /* Native func wrappers have no method */
4525 /* The profiler doesn't know about wrappers, so pass the original icall method */
4526 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4529 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4530 if (prof_method != method) {
4531 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4535 if (!mono_runtime_class_init_full (vtable, error))
4541 * mini_get_underlying_type:
4543 * Return the type the JIT will use during compilation.
4544 * Handles: byref, enums, native types, generic sharing.
4545 * For gsharedvt types, it will return the original VAR/MVAR.
4548 mini_get_underlying_type (MonoType *type)
4550 return mini_type_get_underlying_type (type);
4554 mini_jit_init (void)
4556 mono_os_mutex_init_recursive (&jit_mutex);
4558 current_backend = g_new0 (MonoBackend, 1);
4559 init_backend (current_backend);
4564 mini_jit_cleanup (void)
4567 g_free (emul_opcode_map);
4568 g_free (emul_opcode_opcodes);
4574 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4576 g_assert_not_reached ();
4579 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4581 g_assert_not_reached ();
4586 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4589 mono_llvm_cpp_throw_exception (void)
4591 g_assert_not_reached ();
4599 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4601 g_assert_not_reached ();
4606 mono_destroy_compile (MonoCompile *cfg)
4608 g_assert_not_reached ();
4612 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4614 g_assert_not_reached ();
4617 #endif /* DISABLE_JIT */