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)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #ifdef HAVE_SYS_TIME_H
26 #include <mono/utils/memcheck.h>
28 #include <mono/metadata/assembly.h>
29 #include <mono/metadata/loader.h>
30 #include <mono/metadata/tabledefs.h>
31 #include <mono/metadata/class.h>
32 #include <mono/metadata/object.h>
33 #include <mono/metadata/tokentype.h>
34 #include <mono/metadata/tabledefs.h>
35 #include <mono/metadata/threads.h>
36 #include <mono/metadata/appdomain.h>
37 #include <mono/metadata/debug-helpers.h>
38 #include "mono/metadata/profiler.h"
39 #include <mono/metadata/profiler-private.h>
40 #include <mono/metadata/mono-config.h>
41 #include <mono/metadata/environment.h>
42 #include <mono/metadata/mono-debug.h>
43 #include <mono/metadata/gc-internals.h>
44 #include <mono/metadata/threads-types.h>
45 #include <mono/metadata/verify.h>
46 #include <mono/metadata/verify-internals.h>
47 #include <mono/metadata/mempool-internals.h>
48 #include <mono/metadata/attach.h>
49 #include <mono/metadata/runtime.h>
50 #include <mono/metadata/attrdefs.h>
51 #include <mono/utils/mono-math.h>
52 #include <mono/utils/mono-compiler.h>
53 #include <mono/utils/mono-counters.h>
54 #include <mono/utils/mono-error-internals.h>
55 #include <mono/utils/mono-logger-internals.h>
56 #include <mono/utils/mono-mmap.h>
57 #include <mono/utils/mono-path.h>
58 #include <mono/utils/mono-tls.h>
59 #include <mono/utils/mono-hwcap.h>
60 #include <mono/utils/dtrace.h>
61 #include <mono/utils/mono-threads.h>
62 #include <mono/utils/mono-threads-coop.h>
63 #include <mono/io-layer/io-layer.h>
66 #include "seq-points.h"
74 #include "jit-icalls.h"
77 #include "debugger-agent.h"
78 #include "llvm-runtime.h"
79 #include "mini-llvm.h"
81 MonoTraceSpec *mono_jit_trace_calls;
82 MonoMethodDesc *mono_inject_async_exc_method;
83 int mono_inject_async_exc_pos;
84 MonoMethodDesc *mono_break_at_bb_method;
85 int mono_break_at_bb_bb_num;
86 gboolean mono_do_x86_stack_align = TRUE;
87 gboolean mono_using_xdebug;
90 static guint32 discarded_code;
91 static double discarded_jit_time;
93 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
94 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
95 static mono_mutex_t jit_mutex;
97 MonoBackend *current_backend;
102 mono_realloc_native_code (MonoCompile *cfg)
104 return g_realloc (cfg->native_code, cfg->code_size);
108 MonoExceptionClause *clause;
109 MonoBasicBlock *basic_block;
114 * mono_emit_unwind_op:
116 * Add an unwind op with the given parameters for the list of unwind ops stored in
120 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
122 MonoUnwindOp *op = (MonoUnwindOp *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
129 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
130 if (cfg->verbose_level > 1) {
133 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
135 case DW_CFA_def_cfa_register:
136 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
138 case DW_CFA_def_cfa_offset:
139 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
142 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
148 #define MONO_INIT_VARINFO(vi,id) do { \
149 (vi)->range.first_use.pos.bid = 0xffff; \
155 * mono_unlink_bblock:
157 * Unlink two basic blocks.
160 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
166 for (i = 0; i < from->out_count; ++i) {
167 if (to == from->out_bb [i]) {
174 for (i = 0; i < from->out_count; ++i) {
175 if (from->out_bb [i] != to)
176 from->out_bb [pos ++] = from->out_bb [i];
178 g_assert (pos == from->out_count - 1);
183 for (i = 0; i < to->in_count; ++i) {
184 if (from == to->in_bb [i]) {
191 for (i = 0; i < to->in_count; ++i) {
192 if (to->in_bb [i] != from)
193 to->in_bb [pos ++] = to->in_bb [i];
195 g_assert (pos == to->in_count - 1);
201 * mono_bblocks_linked:
203 * Return whenever BB1 and BB2 are linked in the CFG.
206 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
210 for (i = 0; i < bb1->out_count; ++i) {
211 if (bb1->out_bb [i] == bb2)
219 mono_find_block_region_notry (MonoCompile *cfg, int offset)
221 MonoMethodHeader *header = cfg->header;
222 MonoExceptionClause *clause;
225 for (i = 0; i < header->num_clauses; ++i) {
226 clause = &header->clauses [i];
227 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
228 (offset < (clause->handler_offset)))
229 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
231 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
232 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
233 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
234 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
235 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
237 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
245 * mono_get_block_region_notry:
247 * Return the region corresponding to REGION, ignoring try clauses nested inside
251 mono_get_block_region_notry (MonoCompile *cfg, int region)
253 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
254 MonoMethodHeader *header = cfg->header;
257 * This can happen if a try clause is nested inside a finally clause.
259 int clause_index = (region >> 8) - 1;
260 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
262 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
269 mono_find_spvar_for_region (MonoCompile *cfg, int region)
271 region = mono_get_block_region_notry (cfg, region);
273 return (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
277 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
281 array [*dfn] = start;
282 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
283 for (i = 0; i < start->out_count; ++i) {
284 if (start->out_bb [i]->dfn)
287 start->out_bb [i]->dfn = *dfn;
288 start->out_bb [i]->df_parent = start;
289 array [*dfn] = start->out_bb [i];
290 df_visit (start->out_bb [i], dfn, array);
295 mono_reverse_branch_op (guint32 opcode)
297 static const int reverse_map [] = {
298 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
299 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
301 static const int reverse_fmap [] = {
302 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
303 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
305 static const int reverse_lmap [] = {
306 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
307 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
309 static const int reverse_imap [] = {
310 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
311 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
314 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
315 opcode = reverse_map [opcode - CEE_BEQ];
316 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
317 opcode = reverse_fmap [opcode - OP_FBEQ];
318 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
319 opcode = reverse_lmap [opcode - OP_LBEQ];
320 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
321 opcode = reverse_imap [opcode - OP_IBEQ];
323 g_assert_not_reached ();
329 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
331 type = mini_get_underlying_type (type);
334 switch (type->type) {
337 return OP_STOREI1_MEMBASE_REG;
340 return OP_STOREI2_MEMBASE_REG;
343 return OP_STOREI4_MEMBASE_REG;
347 case MONO_TYPE_FNPTR:
348 return OP_STORE_MEMBASE_REG;
349 case MONO_TYPE_CLASS:
350 case MONO_TYPE_STRING:
351 case MONO_TYPE_OBJECT:
352 case MONO_TYPE_SZARRAY:
353 case MONO_TYPE_ARRAY:
354 return OP_STORE_MEMBASE_REG;
357 return OP_STOREI8_MEMBASE_REG;
359 return OP_STORER4_MEMBASE_REG;
361 return OP_STORER8_MEMBASE_REG;
362 case MONO_TYPE_VALUETYPE:
363 if (type->data.klass->enumtype) {
364 type = mono_class_enum_basetype (type->data.klass);
367 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
368 return OP_STOREX_MEMBASE;
369 return OP_STOREV_MEMBASE;
370 case MONO_TYPE_TYPEDBYREF:
371 return OP_STOREV_MEMBASE;
372 case MONO_TYPE_GENERICINST:
373 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
374 return OP_STOREX_MEMBASE;
375 type = &type->data.generic_class->container_class->byval_arg;
379 g_assert (mini_type_var_is_vt (type));
380 return OP_STOREV_MEMBASE;
382 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
388 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
390 type = mini_get_underlying_type (type);
392 switch (type->type) {
394 return OP_LOADI1_MEMBASE;
396 return OP_LOADU1_MEMBASE;
398 return OP_LOADI2_MEMBASE;
400 return OP_LOADU2_MEMBASE;
402 return OP_LOADI4_MEMBASE;
404 return OP_LOADU4_MEMBASE;
408 case MONO_TYPE_FNPTR:
409 return OP_LOAD_MEMBASE;
410 case MONO_TYPE_CLASS:
411 case MONO_TYPE_STRING:
412 case MONO_TYPE_OBJECT:
413 case MONO_TYPE_SZARRAY:
414 case MONO_TYPE_ARRAY:
415 return OP_LOAD_MEMBASE;
418 return OP_LOADI8_MEMBASE;
420 return OP_LOADR4_MEMBASE;
422 return OP_LOADR8_MEMBASE;
423 case MONO_TYPE_VALUETYPE:
424 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
425 return OP_LOADX_MEMBASE;
426 case MONO_TYPE_TYPEDBYREF:
427 return OP_LOADV_MEMBASE;
428 case MONO_TYPE_GENERICINST:
429 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
430 return OP_LOADX_MEMBASE;
431 if (mono_type_generic_inst_is_valuetype (type))
432 return OP_LOADV_MEMBASE;
434 return OP_LOAD_MEMBASE;
438 g_assert (cfg->gshared);
439 g_assert (mini_type_var_is_vt (type));
440 return OP_LOADV_MEMBASE;
442 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
448 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
450 type = mini_get_underlying_type (type);
451 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
452 g_assert (mini_type_var_is_vt (type));
455 return mono_type_to_stind (type);
459 mono_op_imm_to_op (int opcode)
463 #if SIZEOF_REGISTER == 4
481 #if SIZEOF_REGISTER == 4
487 #if SIZEOF_REGISTER == 4
493 #if SIZEOF_REGISTER == 4
539 #if SIZEOF_REGISTER == 4
545 #if SIZEOF_REGISTER == 4
564 case OP_ICOMPARE_IMM:
566 case OP_LOCALLOC_IMM:
574 * mono_decompose_op_imm:
576 * Replace the OP_.._IMM INS with its non IMM variant.
579 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
581 int opcode2 = mono_op_imm_to_op (ins->opcode);
584 const char *spec = INS_INFO (ins->opcode);
586 if (spec [MONO_INST_SRC2] == 'l') {
587 dreg = mono_alloc_lreg (cfg);
589 /* Load the 64bit constant using decomposed ops */
590 MONO_INST_NEW (cfg, temp, OP_ICONST);
591 temp->inst_c0 = ins->inst_ls_word;
592 temp->dreg = MONO_LVREG_LS (dreg);
593 mono_bblock_insert_before_ins (bb, ins, temp);
595 MONO_INST_NEW (cfg, temp, OP_ICONST);
596 temp->inst_c0 = ins->inst_ms_word;
597 temp->dreg = MONO_LVREG_MS (dreg);
599 dreg = mono_alloc_ireg (cfg);
601 MONO_INST_NEW (cfg, temp, OP_ICONST);
602 temp->inst_c0 = ins->inst_imm;
606 mono_bblock_insert_before_ins (bb, ins, temp);
609 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
610 ins->opcode = opcode2;
612 if (ins->opcode == OP_LOCALLOC)
617 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
621 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
623 if (vreg >= cfg->vreg_to_inst_len) {
624 MonoInst **tmp = cfg->vreg_to_inst;
625 int size = cfg->vreg_to_inst_len;
627 while (vreg >= cfg->vreg_to_inst_len)
628 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
629 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
631 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
633 cfg->vreg_to_inst [vreg] = inst;
636 #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)))
637 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
640 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
643 int num = cfg->num_varinfo;
646 type = mini_get_underlying_type (type);
648 if ((num + 1) >= cfg->varinfo_count) {
649 int orig_count = cfg->varinfo_count;
650 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
651 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
652 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
653 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
656 cfg->stat_allocate_var++;
658 MONO_INST_NEW (cfg, inst, opcode);
660 inst->inst_vtype = type;
661 inst->klass = mono_class_from_mono_type (type);
662 type_to_eval_stack_type (cfg, type, inst);
663 /* if set to 1 the variable is native */
664 inst->backend.is_pinvoke = 0;
667 if (mono_class_has_failure (inst->klass))
668 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
670 if (cfg->compute_gc_maps) {
672 mono_mark_vreg_as_mp (cfg, vreg);
674 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
675 inst->flags |= MONO_INST_GC_TRACK;
676 mono_mark_vreg_as_ref (cfg, vreg);
681 cfg->varinfo [num] = inst;
683 MONO_INIT_VARINFO (&cfg->vars [num], num);
684 MONO_VARINFO (cfg, num)->vreg = vreg;
687 set_vreg_to_inst (cfg, vreg, inst);
689 #if SIZEOF_REGISTER == 4
690 if (mono_arch_is_soft_float ()) {
691 regpair = mono_type_is_long (type) || mono_type_is_float (type);
693 regpair = mono_type_is_long (type);
703 * These two cannot be allocated using create_var_for_vreg since that would
704 * put it into the cfg->varinfo array, confusing many parts of the JIT.
708 * Set flags to VOLATILE so SSA skips it.
711 if (cfg->verbose_level >= 4) {
712 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
715 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
716 if (mono_type_is_float (type))
717 inst->flags = MONO_INST_VOLATILE;
720 /* Allocate a dummy MonoInst for the first vreg */
721 MONO_INST_NEW (cfg, tree, OP_LOCAL);
722 tree->dreg = MONO_LVREG_LS (inst->dreg);
723 if (cfg->opt & MONO_OPT_SSA)
724 tree->flags = MONO_INST_VOLATILE;
726 tree->type = STACK_I4;
727 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
728 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
730 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
732 /* Allocate a dummy MonoInst for the second vreg */
733 MONO_INST_NEW (cfg, tree, OP_LOCAL);
734 tree->dreg = MONO_LVREG_MS (inst->dreg);
735 if (cfg->opt & MONO_OPT_SSA)
736 tree->flags = MONO_INST_VOLATILE;
738 tree->type = STACK_I4;
739 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
740 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
742 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
746 if (cfg->verbose_level > 2)
747 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
752 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
755 type = mini_get_underlying_type (type);
757 if (mono_type_is_long (type))
758 dreg = mono_alloc_dreg (cfg, STACK_I8);
759 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
760 dreg = mono_alloc_dreg (cfg, STACK_R8);
762 /* All the others are unified */
763 dreg = mono_alloc_preg (cfg);
765 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
769 mini_get_int_to_float_spill_area (MonoCompile *cfg)
772 if (!cfg->iconv_raw_var) {
773 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
774 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
776 return cfg->iconv_raw_var;
783 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
785 if (vreg >= cfg->vreg_is_ref_len) {
786 gboolean *tmp = cfg->vreg_is_ref;
787 int size = cfg->vreg_is_ref_len;
789 while (vreg >= cfg->vreg_is_ref_len)
790 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
791 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
793 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
795 cfg->vreg_is_ref [vreg] = TRUE;
799 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
801 if (vreg >= cfg->vreg_is_mp_len) {
802 gboolean *tmp = cfg->vreg_is_mp;
803 int size = cfg->vreg_is_mp_len;
805 while (vreg >= cfg->vreg_is_mp_len)
806 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
807 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
809 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
811 cfg->vreg_is_mp [vreg] = TRUE;
815 type_from_stack_type (MonoInst *ins)
818 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
819 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
820 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
821 case STACK_R8: return &mono_defaults.double_class->byval_arg;
824 * this if used to be commented without any specific reason, but
825 * it breaks #80235 when commented
828 return &ins->klass->this_arg;
830 return &mono_defaults.object_class->this_arg;
832 /* ins->klass may not be set for ldnull.
833 * Also, if we have a boxed valuetype, we want an object lass,
834 * not the valuetype class
836 if (ins->klass && !ins->klass->valuetype)
837 return &ins->klass->byval_arg;
838 return &mono_defaults.object_class->byval_arg;
839 case STACK_VTYPE: return &ins->klass->byval_arg;
841 g_error ("stack type %d to montype not handled\n", ins->type);
847 mono_type_from_stack_type (MonoInst *ins)
849 return type_from_stack_type (ins);
853 * mono_add_ins_to_end:
855 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
858 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
863 MONO_ADD_INS (bb, inst);
867 switch (bb->last_ins->opcode) {
881 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
884 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
885 /* Need to insert the ins before the compare */
886 if (bb->code == bb->last_ins) {
887 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
891 if (bb->code->next == bb->last_ins) {
892 /* Only two instructions */
893 opcode = bb->code->opcode;
895 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)) {
897 mono_bblock_insert_before_ins (bb, bb->code, inst);
899 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
902 opcode = bb->last_ins->prev->opcode;
904 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)) {
906 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
908 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
913 MONO_ADD_INS (bb, inst);
919 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
921 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
922 MonoJumpInfoBBTable *table;
924 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
926 table->table_size = num_blocks;
928 ji->ip.label = label;
929 ji->type = MONO_PATCH_INFO_SWITCH;
930 ji->data.table = table;
931 ji->next = cfg->patch_info;
932 cfg->patch_info = ji;
935 static MonoMethodSignature *
936 mono_get_array_new_va_signature (int arity)
938 static GHashTable *sighash;
939 MonoMethodSignature *res;
944 sighash = g_hash_table_new (NULL, NULL);
946 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
951 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
954 if (ARCH_VARARG_ICALLS)
955 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
956 res->call_convention = MONO_CALL_VARARG;
959 res->call_convention = MONO_CALL_C;
962 res->params [0] = &mono_defaults.int_class->byval_arg;
963 for (i = 0; i < arity; i++)
964 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
966 res->ret = &mono_defaults.object_class->byval_arg;
968 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
975 mono_get_array_new_va_icall (int rank)
977 MonoMethodSignature *esig;
978 char icall_name [256];
980 MonoJitICallInfo *info;
982 /* Need to register the icall so it gets an icall wrapper */
983 sprintf (icall_name, "ves_array_new_va_%d", rank);
986 info = mono_find_jit_icall_by_name (icall_name);
988 esig = mono_get_array_new_va_signature (rank);
989 name = g_strdup (icall_name);
990 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
998 mini_class_is_system_array (MonoClass *klass)
1000 if (klass->parent == mono_defaults.array_class)
1007 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1009 MonoAssembly *assembly = method->klass->image->assembly;
1010 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1012 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1014 return mono_assembly_has_skip_verification (assembly);
1018 * mini_method_verify:
1020 * Verify the method using the verfier.
1022 * Returns true if the method is invalid.
1025 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1028 gboolean is_fulltrust;
1030 if (method->verification_success)
1033 if (!mono_verifier_is_enabled_for_method (method))
1036 /*skip verification implies the assembly must be */
1037 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1039 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1042 for (tmp = res; tmp; tmp = tmp->next) {
1043 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1044 if (info->info.status == MONO_VERIFY_ERROR) {
1046 char *method_name = mono_method_full_name (method, TRUE);
1047 cfg->exception_type = info->exception_type;
1048 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1049 g_free (method_name);
1051 mono_free_verify_list (res);
1054 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1056 char *method_name = mono_method_full_name (method, TRUE);
1057 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1059 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1060 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1061 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1062 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1063 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1064 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", "%s", msg);
1065 if (!mono_error_ok (&cfg->error)) {
1066 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1069 cfg->exception_type = info->exception_type;
1070 cfg->exception_message = msg;
1072 g_free (method_name);
1074 mono_free_verify_list (res);
1078 mono_free_verify_list (res);
1080 method->verification_success = 1;
1084 /*Returns true if something went wrong*/
1086 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1088 MonoMethod *method_definition = method;
1089 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1091 while (method_definition->is_inflated) {
1092 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1093 method_definition = imethod->declaring;
1096 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1100 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1102 if (!domain_jit_info (domain)->dynamic_code_hash)
1103 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1104 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1107 static MonoJitDynamicMethodInfo*
1108 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1110 MonoJitDynamicMethodInfo *res;
1112 if (domain_jit_info (domain)->dynamic_code_hash)
1113 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1121 GList *active, *inactive;
1126 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1128 MonoMethodVar *v1 = (MonoMethodVar*)a;
1129 MonoMethodVar *v2 = (MonoMethodVar*)b;
1133 else if (v1->interval->range && v2->interval->range)
1134 return v1->interval->range->from - v2->interval->range->from;
1135 else if (v1->interval->range)
1142 #define LSCAN_DEBUG(a) do { a; } while (0)
1144 #define LSCAN_DEBUG(a)
1148 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1150 int i, slot, offset, size;
1155 GList *vars = NULL, *l, *unhandled;
1156 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1159 gboolean reuse_slot;
1161 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1163 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1164 vtype_stack_slots = NULL;
1167 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1168 for (i = 0; i < cfg->num_varinfo; ++i)
1171 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1172 inst = cfg->varinfo [i];
1173 vmv = MONO_VARINFO (cfg, i);
1175 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1178 vars = g_list_prepend (vars, vmv);
1181 vars = g_list_sort (vars, compare_by_interval_start_pos_func);
1186 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1187 MonoMethodVar *current = unhandled->data;
1189 if (current->interval->range) {
1190 g_assert (current->interval->range->from >= i);
1191 i = current->interval->range->from;
1198 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1199 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1202 inst = cfg->varinfo [vmv->idx];
1204 t = mono_type_get_underlying_type (inst->inst_vtype);
1205 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1208 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1209 * pinvoke wrappers when they call functions returning structures */
1210 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1211 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1216 size = mini_type_stack_size (t, &ialign);
1219 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1224 if (cfg->disable_reuse_stack_slots)
1227 t = mini_get_underlying_type (t);
1229 case MONO_TYPE_GENERICINST:
1230 if (!mono_type_generic_inst_is_valuetype (t)) {
1231 slot_info = &scalar_stack_slots [t->type];
1235 case MONO_TYPE_VALUETYPE:
1236 if (!vtype_stack_slots)
1237 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1238 for (i = 0; i < nvtypes; ++i)
1239 if (t->data.klass == vtype_stack_slots [i].vtype)
1242 slot_info = &vtype_stack_slots [i];
1244 g_assert (nvtypes < 256);
1245 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1246 slot_info = &vtype_stack_slots [nvtypes];
1249 if (cfg->disable_reuse_ref_stack_slots)
1256 #if SIZEOF_VOID_P == 4
1261 if (cfg->disable_ref_noref_stack_slot_share) {
1262 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1267 case MONO_TYPE_CLASS:
1268 case MONO_TYPE_OBJECT:
1269 case MONO_TYPE_ARRAY:
1270 case MONO_TYPE_SZARRAY:
1271 case MONO_TYPE_STRING:
1272 /* Share non-float stack slots of the same size */
1273 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1274 if (cfg->disable_reuse_ref_stack_slots)
1279 slot_info = &scalar_stack_slots [t->type];
1283 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1287 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1289 if (!current->interval->range) {
1290 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1294 inst->flags |= MONO_INST_IS_DEAD;
1299 pos = current->interval->range->from;
1301 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1302 if (current->interval->range)
1303 LSCAN_DEBUG (mono_linterval_print (current->interval));
1304 LSCAN_DEBUG (printf ("\n"));
1306 /* Check for intervals in active which expired or inactive */
1308 /* FIXME: Optimize this */
1311 for (l = slot_info->active; l != NULL; l = l->next) {
1312 MonoMethodVar *v = (MonoMethodVar*)l->data;
1314 if (v->interval->last_range->to < pos) {
1315 slot_info->active = g_list_delete_link (slot_info->active, l);
1316 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1317 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1321 else if (!mono_linterval_covers (v->interval, pos)) {
1322 slot_info->inactive = g_list_append (slot_info->inactive, v);
1323 slot_info->active = g_list_delete_link (slot_info->active, l);
1324 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1331 /* Check for intervals in inactive which expired or active */
1333 /* FIXME: Optimize this */
1336 for (l = slot_info->inactive; l != NULL; l = l->next) {
1337 MonoMethodVar *v = (MonoMethodVar*)l->data;
1339 if (v->interval->last_range->to < pos) {
1340 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1341 // FIXME: Enabling this seems to cause impossible to debug crashes
1342 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1343 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1347 else if (mono_linterval_covers (v->interval, pos)) {
1348 slot_info->active = g_list_append (slot_info->active, v);
1349 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1350 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1358 * This also handles the case when the variable is used in an
1359 * exception region, as liveness info is not computed there.
1362 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1365 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1366 if (slot_info->slots) {
1367 slot = GPOINTER_TO_INT (slot_info->slots->data);
1369 slot_info->slots = slot_info->slots->next;
1372 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1374 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1380 static int count = 0;
1383 if (count == atoi (g_getenv ("COUNT3")))
1384 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1385 if (count > atoi (g_getenv ("COUNT3")))
1388 mono_print_ins (inst);
1393 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1395 if (inst->flags & MONO_INST_LMF) {
1396 size = sizeof (MonoLMF);
1397 align = sizeof (mgreg_t);
1404 if (slot == 0xffffff) {
1406 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1407 * efficient copying (and to work around the fact that OP_MEMCPY
1408 * and OP_MEMSET ignores alignment).
1410 if (MONO_TYPE_ISSTRUCT (t)) {
1411 align = MAX (align, sizeof (gpointer));
1412 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1417 offset += align - 1;
1418 offset &= ~(align - 1);
1422 offset += align - 1;
1423 offset &= ~(align - 1);
1428 if (*stack_align == 0)
1429 *stack_align = align;
1432 offsets [vmv->idx] = slot;
1435 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1436 if (scalar_stack_slots [i].active)
1437 g_list_free (scalar_stack_slots [i].active);
1439 for (i = 0; i < nvtypes; ++i) {
1440 if (vtype_stack_slots [i].active)
1441 g_list_free (vtype_stack_slots [i].active);
1444 cfg->stat_locals_stack_size += offset;
1446 *stack_size = offset;
1451 * mono_allocate_stack_slots:
1453 * Allocate stack slots for all non register allocated variables using a
1454 * linear scan algorithm.
1455 * Returns: an array of stack offsets.
1456 * STACK_SIZE is set to the amount of stack space needed.
1457 * STACK_ALIGN is set to the alignment needed by the locals area.
1460 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1462 int i, slot, offset, size;
1467 GList *vars = NULL, *l;
1468 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1471 gboolean reuse_slot;
1473 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1474 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1476 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1477 vtype_stack_slots = NULL;
1480 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1481 for (i = 0; i < cfg->num_varinfo; ++i)
1484 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1485 inst = cfg->varinfo [i];
1486 vmv = MONO_VARINFO (cfg, i);
1488 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1491 vars = g_list_prepend (vars, vmv);
1494 vars = mono_varlist_sort (cfg, vars, 0);
1496 *stack_align = sizeof(mgreg_t);
1497 for (l = vars; l; l = l->next) {
1498 vmv = (MonoMethodVar *)l->data;
1499 inst = cfg->varinfo [vmv->idx];
1501 t = mono_type_get_underlying_type (inst->inst_vtype);
1502 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1505 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1506 * pinvoke wrappers when they call functions returning structures */
1507 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1508 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1512 size = mini_type_stack_size (t, &ialign);
1515 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1516 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1518 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1523 if (cfg->disable_reuse_stack_slots)
1526 t = mini_get_underlying_type (t);
1528 case MONO_TYPE_GENERICINST:
1529 if (!mono_type_generic_inst_is_valuetype (t)) {
1530 slot_info = &scalar_stack_slots [t->type];
1534 case MONO_TYPE_VALUETYPE:
1535 if (!vtype_stack_slots)
1536 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1537 for (i = 0; i < nvtypes; ++i)
1538 if (t->data.klass == vtype_stack_slots [i].vtype)
1541 slot_info = &vtype_stack_slots [i];
1543 g_assert (nvtypes < 256);
1544 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1545 slot_info = &vtype_stack_slots [nvtypes];
1548 if (cfg->disable_reuse_ref_stack_slots)
1555 #if SIZEOF_VOID_P == 4
1560 if (cfg->disable_ref_noref_stack_slot_share) {
1561 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1566 case MONO_TYPE_CLASS:
1567 case MONO_TYPE_OBJECT:
1568 case MONO_TYPE_ARRAY:
1569 case MONO_TYPE_SZARRAY:
1570 case MONO_TYPE_STRING:
1571 /* Share non-float stack slots of the same size */
1572 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1573 if (cfg->disable_reuse_ref_stack_slots)
1577 case MONO_TYPE_MVAR:
1578 slot_info = &scalar_stack_slots [t->type];
1581 slot_info = &scalar_stack_slots [t->type];
1586 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1587 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1589 /* expire old intervals in active */
1590 while (slot_info->active) {
1591 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1593 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1596 //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);
1598 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1599 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1603 * This also handles the case when the variable is used in an
1604 * exception region, as liveness info is not computed there.
1607 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1610 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1611 if (slot_info->slots) {
1612 slot = GPOINTER_TO_INT (slot_info->slots->data);
1614 slot_info->slots = slot_info->slots->next;
1617 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1622 static int count = 0;
1626 if (count == atoi (g_getenv ("COUNT")))
1627 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1628 if (count > atoi (g_getenv ("COUNT")))
1631 mono_print_ins (inst);
1636 if (inst->flags & MONO_INST_LMF) {
1638 * This variable represents a MonoLMF structure, which has no corresponding
1639 * CLR type, so hard-code its size/alignment.
1641 size = sizeof (MonoLMF);
1642 align = sizeof (mgreg_t);
1649 if (slot == 0xffffff) {
1651 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1652 * efficient copying (and to work around the fact that OP_MEMCPY
1653 * and OP_MEMSET ignores alignment).
1655 if (MONO_TYPE_ISSTRUCT (t)) {
1656 align = MAX (align, sizeof (gpointer));
1657 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1659 * Align the size too so the code generated for passing vtypes in
1660 * registers doesn't overwrite random locals.
1662 size = (size + (align - 1)) & ~(align -1);
1667 offset += align - 1;
1668 offset &= ~(align - 1);
1672 offset += align - 1;
1673 offset &= ~(align - 1);
1678 *stack_align = MAX (*stack_align, align);
1681 offsets [vmv->idx] = slot;
1684 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1685 if (scalar_stack_slots [i].active)
1686 g_list_free (scalar_stack_slots [i].active);
1688 for (i = 0; i < nvtypes; ++i) {
1689 if (vtype_stack_slots [i].active)
1690 g_list_free (vtype_stack_slots [i].active);
1693 cfg->stat_locals_stack_size += offset;
1695 *stack_size = offset;
1699 #define EMUL_HIT_SHIFT 3
1700 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1701 /* small hit bitmap cache */
1702 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1703 static short emul_opcode_num = 0;
1704 static short emul_opcode_alloced = 0;
1705 static short *emul_opcode_opcodes;
1706 static MonoJitICallInfo **emul_opcode_map;
1709 mono_find_jit_opcode_emulation (int opcode)
1711 g_assert (opcode >= 0 && opcode <= OP_LAST);
1712 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1714 for (i = 0; i < emul_opcode_num; ++i) {
1715 if (emul_opcode_opcodes [i] == opcode)
1716 return emul_opcode_map [i];
1723 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1725 MonoJitICallInfo *info;
1726 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1728 g_assert (!sig->hasthis);
1729 g_assert (sig->param_count < 3);
1731 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1732 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1734 if (emul_opcode_num >= emul_opcode_alloced) {
1735 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1736 emul_opcode_alloced += incr;
1737 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1738 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1740 emul_opcode_map [emul_opcode_num] = info;
1741 emul_opcode_opcodes [emul_opcode_num] = opcode;
1743 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1747 print_dfn (MonoCompile *cfg)
1755 char *method_name = mono_method_full_name (cfg->method, TRUE);
1756 g_print ("IR code for method %s\n", method_name);
1757 g_free (method_name);
1760 for (i = 0; i < cfg->num_bblocks; ++i) {
1761 bb = cfg->bblocks [i];
1762 /*if (bb->cil_code) {
1763 char* code1, *code2;
1764 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1765 if (bb->last_ins->cil_code)
1766 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1768 code2 = g_strdup ("");
1770 code1 [strlen (code1) - 1] = 0;
1771 code = g_strdup_printf ("%s -> %s", code1, code2);
1775 code = g_strdup ("\n");
1776 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1777 MONO_BB_FOR_EACH_INS (bb, c) {
1778 mono_print_ins_index (-1, c);
1781 g_print ("\tprev:");
1782 for (j = 0; j < bb->in_count; ++j) {
1783 g_print (" BB%d", bb->in_bb [j]->block_num);
1785 g_print ("\t\tsucc:");
1786 for (j = 0; j < bb->out_count; ++j) {
1787 g_print (" BB%d", bb->out_bb [j]->block_num);
1789 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1792 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1795 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1797 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1805 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1807 MONO_ADD_INS (bb, inst);
1811 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1815 bb->code = ins_to_insert;
1817 /* Link with next */
1818 ins_to_insert->next = ins;
1820 ins->prev = ins_to_insert;
1822 if (bb->last_ins == NULL)
1823 bb->last_ins = ins_to_insert;
1825 /* Link with next */
1826 ins_to_insert->next = ins->next;
1828 ins->next->prev = ins_to_insert;
1830 /* Link with previous */
1831 ins->next = ins_to_insert;
1832 ins_to_insert->prev = ins;
1834 if (bb->last_ins == ins)
1835 bb->last_ins = ins_to_insert;
1840 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1845 ins->prev = ins_to_insert;
1846 bb->code = ins_to_insert;
1847 ins_to_insert->next = ins;
1848 if (bb->last_ins == NULL)
1849 bb->last_ins = ins_to_insert;
1851 /* Link with previous */
1853 ins->prev->next = ins_to_insert;
1854 ins_to_insert->prev = ins->prev;
1856 /* Link with next */
1857 ins->prev = ins_to_insert;
1858 ins_to_insert->next = ins;
1860 if (bb->code == ins)
1861 bb->code = ins_to_insert;
1866 * mono_verify_bblock:
1868 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1871 mono_verify_bblock (MonoBasicBlock *bb)
1873 MonoInst *ins, *prev;
1876 for (ins = bb->code; ins; ins = ins->next) {
1877 g_assert (ins->prev == prev);
1881 g_assert (!bb->last_ins->next);
1887 * Perform consistency checks on the JIT data structures and the IR
1890 mono_verify_cfg (MonoCompile *cfg)
1894 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
1895 mono_verify_bblock (bb);
1898 // This will free many fields in cfg to save
1899 // memory. Note that this must be safe to call
1900 // multiple times. It must be idempotent.
1902 mono_empty_compile (MonoCompile *cfg)
1904 mono_free_loop_info (cfg);
1906 // These live in the mempool, and so must be freed
1908 for (GSList *l = cfg->headers_to_free; l; l = l->next) {
1909 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
1911 cfg->headers_to_free = NULL;
1914 //mono_mempool_stats (cfg->mempool);
1915 mono_mempool_destroy (cfg->mempool);
1916 cfg->mempool = NULL;
1919 g_free (cfg->varinfo);
1920 cfg->varinfo = NULL;
1926 mono_regstate_free (cfg->rs);
1932 mono_destroy_compile (MonoCompile *cfg)
1934 mono_empty_compile (cfg);
1937 mono_metadata_free_mh (cfg->header);
1940 g_hash_table_destroy (cfg->spvars);
1942 g_hash_table_destroy (cfg->exvars);
1944 g_list_free (cfg->ldstr_list);
1946 if (cfg->token_info_hash)
1947 g_hash_table_destroy (cfg->token_info_hash);
1949 if (cfg->abs_patches)
1950 g_hash_table_destroy (cfg->abs_patches);
1952 mono_debug_free_method (cfg);
1954 g_free (cfg->varinfo);
1956 g_free (cfg->exception_message);
1961 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
1963 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
1967 ji->data.target = target;
1968 ji->next = cfg->patch_info;
1970 cfg->patch_info = ji;
1974 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
1976 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
1980 ji->relocation = relocation;
1981 ji->data.target = target;
1982 ji->next = cfg->patch_info;
1984 cfg->patch_info = ji;
1988 mono_remove_patch_info (MonoCompile *cfg, int ip)
1990 MonoJumpInfo **ji = &cfg->patch_info;
1993 if ((*ji)->ip.i == ip)
1996 ji = &((*ji)->next);
2001 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2003 ins->inst_offset = native_offset;
2004 g_ptr_array_add (cfg->seq_points, ins);
2006 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2007 bb->last_seq_point = ins;
2012 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2014 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2017 g_assert (offset == 0);
2019 entry->is_reg = is_reg;
2021 entry->offset = offset;
2025 if (var == cfg->args [0])
2026 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2027 else if (var == cfg->rgctx_var)
2028 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2032 mono_compile_create_vars (MonoCompile *cfg)
2034 MonoMethodSignature *sig;
2035 MonoMethodHeader *header;
2038 header = cfg->header;
2040 sig = mono_method_signature (cfg->method);
2042 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2043 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2044 /* Inhibit optimizations */
2045 cfg->ret->flags |= MONO_INST_VOLATILE;
2047 if (cfg->verbose_level > 2)
2048 g_print ("creating vars\n");
2050 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2053 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2054 cfg->this_arg = cfg->args [0];
2057 for (i = 0; i < sig->param_count; ++i) {
2058 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2061 if (cfg->verbose_level > 2) {
2063 printf ("\treturn : ");
2064 mono_print_ins (cfg->ret);
2068 printf ("\tthis: ");
2069 mono_print_ins (cfg->args [0]);
2072 for (i = 0; i < sig->param_count; ++i) {
2073 printf ("\targ [%d]: ", i);
2074 mono_print_ins (cfg->args [i + sig->hasthis]);
2078 cfg->locals_start = cfg->num_varinfo;
2079 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2081 if (cfg->verbose_level > 2)
2082 g_print ("creating locals\n");
2084 for (i = 0; i < header->num_locals; ++i)
2085 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2087 if (cfg->verbose_level > 2)
2088 g_print ("locals done\n");
2091 if (COMPILE_LLVM (cfg))
2092 mono_llvm_create_vars (cfg);
2094 mono_arch_create_vars (cfg);
2096 mono_arch_create_vars (cfg);
2099 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2100 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2101 lmf_var->flags |= MONO_INST_VOLATILE;
2102 lmf_var->flags |= MONO_INST_LMF;
2103 cfg->lmf_var = lmf_var;
2108 mono_print_code (MonoCompile *cfg, const char* msg)
2112 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2113 mono_print_bb (bb, msg);
2117 mono_postprocess_patches (MonoCompile *cfg)
2119 MonoJumpInfo *patch_info;
2122 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2123 switch (patch_info->type) {
2124 case MONO_PATCH_INFO_ABS: {
2125 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2128 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2132 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2133 /* for these array methods we currently register the same function pointer
2134 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2135 * will return the incorrect one depending on the order they are registered.
2136 * See tests/test-arr.cs
2138 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2139 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2140 patch_info->data.name = info->name;
2144 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2145 if (cfg->abs_patches) {
2146 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2148 patch_info->type = abs_ji->type;
2149 patch_info->data.target = abs_ji->data.target;
2156 case MONO_PATCH_INFO_SWITCH: {
2158 #if defined(__native_client__) && defined(__native_client_codegen__)
2159 /* This memory will leak. */
2160 /* TODO: can we free this when */
2161 /* making the final jump table? */
2162 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2164 if (cfg->method->dynamic) {
2165 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2167 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2171 for (i = 0; i < patch_info->data.table->table_size; i++) {
2172 /* Might be NULL if the switch is eliminated */
2173 if (patch_info->data.table->table [i]) {
2174 g_assert (patch_info->data.table->table [i]->native_offset);
2175 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2180 patch_info->data.table->table = (MonoBasicBlock**)table;
2183 case MONO_PATCH_INFO_METHOD_JUMP: {
2184 MonoJumpList *jlist;
2185 MonoDomain *domain = cfg->domain;
2186 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2188 mono_domain_lock (domain);
2189 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2191 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2192 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2194 jlist->list = g_slist_prepend (jlist->list, ip);
2195 mono_domain_unlock (domain);
2206 mono_codegen (MonoCompile *cfg)
2209 int max_epilog_size;
2211 MonoDomain *code_domain;
2212 guint unwindlen = 0;
2214 if (mono_using_xdebug)
2216 * Recent gdb versions have trouble processing symbol files containing
2217 * overlapping address ranges, so allocate all code from the code manager
2218 * of the root domain. (#666152).
2220 code_domain = mono_get_root_domain ();
2222 code_domain = cfg->domain;
2224 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2225 cfg->spill_count = 0;
2226 /* we reuse dfn here */
2227 /* bb->dfn = bb_count++; */
2229 mono_arch_lowering_pass (cfg, bb);
2231 if (cfg->opt & MONO_OPT_PEEPHOLE)
2232 mono_arch_peephole_pass_1 (cfg, bb);
2234 mono_local_regalloc (cfg, bb);
2236 if (cfg->opt & MONO_OPT_PEEPHOLE)
2237 mono_arch_peephole_pass_2 (cfg, bb);
2239 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2240 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2243 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2244 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2246 code = mono_arch_emit_prolog (cfg);
2248 cfg->code_len = code - cfg->native_code;
2249 cfg->prolog_end = cfg->code_len;
2250 cfg->cfa_reg = cfg->cur_cfa_reg;
2251 cfg->cfa_offset = cfg->cur_cfa_offset;
2253 mono_debug_open_method (cfg);
2255 /* emit code all basic blocks */
2256 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2257 bb->native_offset = cfg->code_len;
2258 bb->real_native_offset = cfg->code_len;
2259 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2260 mono_arch_output_basic_block (cfg, bb);
2261 bb->native_length = cfg->code_len - bb->native_offset;
2263 if (bb == cfg->bb_exit) {
2264 cfg->epilog_begin = cfg->code_len;
2265 mono_arch_emit_epilog (cfg);
2266 cfg->epilog_end = cfg->code_len;
2270 mono_arch_emit_exceptions (cfg);
2272 max_epilog_size = 0;
2274 /* we always allocate code in cfg->domain->code_mp to increase locality */
2275 cfg->code_size = cfg->code_len + max_epilog_size;
2277 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2279 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2280 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2283 if (cfg->method->dynamic) {
2284 /* Allocate the code into a separate memory pool so it can be freed */
2285 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2286 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2287 mono_domain_lock (cfg->domain);
2288 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2289 mono_domain_unlock (cfg->domain);
2291 if (mono_using_xdebug)
2292 /* See the comment for cfg->code_domain */
2293 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2295 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2297 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2300 if (cfg->thunk_area) {
2301 cfg->thunks_offset = cfg->code_size + unwindlen;
2302 cfg->thunks = code + cfg->thunks_offset;
2303 memset (cfg->thunks, 0, cfg->thunk_area);
2307 memcpy (code, cfg->native_code, cfg->code_len);
2308 g_free (cfg->native_code);
2309 cfg->native_code = code;
2310 code = cfg->native_code + cfg->code_len;
2312 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2313 mono_postprocess_patches (cfg);
2315 #ifdef VALGRIND_JIT_REGISTER_MAP
2316 if (valgrind_register){
2317 char* nm = mono_method_full_name (cfg->method, TRUE);
2318 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2323 if (cfg->verbose_level > 0) {
2324 char* nm = mono_method_get_full_name (cfg->method);
2325 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2327 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2332 gboolean is_generic = FALSE;
2334 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2335 mono_class_is_gtd (cfg->method->klass) || mono_class_is_ginst (cfg->method->klass)) {
2340 g_assert (is_generic);
2343 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2344 mono_arch_save_unwind_info (cfg);
2347 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2352 for (ji = cfg->patch_info; ji; ji = ji->next) {
2353 if (cfg->compile_aot) {
2355 case MONO_PATCH_INFO_BB:
2356 case MONO_PATCH_INFO_LABEL:
2359 /* No need to patch these */
2364 if (ji->type == MONO_PATCH_INFO_NONE)
2367 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2368 if (!mono_error_ok (&cfg->error)) {
2369 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2372 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2376 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors, &cfg->error);
2377 if (!is_ok (&cfg->error)) {
2378 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2383 if (cfg->method->dynamic) {
2384 if (mono_using_xdebug)
2385 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2387 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2389 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2391 #if defined(__native_client_codegen__) && defined(__native_client__)
2392 cfg->native_code = code_dest;
2394 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2396 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2398 mono_debug_close_method (cfg);
2400 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2401 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2406 compute_reachable (MonoBasicBlock *bb)
2410 if (!(bb->flags & BB_VISITED)) {
2411 bb->flags |= BB_VISITED;
2412 for (i = 0; i < bb->out_count; ++i)
2413 compute_reachable (bb->out_bb [i]);
2417 static void mono_bb_ordering (MonoCompile *cfg)
2420 /* Depth-first ordering on basic blocks */
2421 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2423 cfg->max_block_num = cfg->num_bblocks;
2425 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2426 if (cfg->num_bblocks != dfn + 1) {
2429 cfg->num_bblocks = dfn + 1;
2431 /* remove unreachable code, because the code in them may be
2432 * inconsistent (access to dead variables for example) */
2433 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2434 bb->flags &= ~BB_VISITED;
2435 compute_reachable (cfg->bb_entry);
2436 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2437 if (bb->flags & BB_EXCEPTION_HANDLER)
2438 compute_reachable (bb);
2439 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2440 if (!(bb->flags & BB_VISITED)) {
2441 if (cfg->verbose_level > 1)
2442 g_print ("found unreachable code in BB%d\n", bb->block_num);
2443 bb->code = bb->last_ins = NULL;
2444 while (bb->out_count)
2445 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2448 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2449 bb->flags &= ~BB_VISITED;
2454 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2457 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2458 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2460 MONO_INST_NEW (cfg, ins, OP_BR);
2461 MONO_ADD_INS (bb, ins);
2462 ins->inst_target_bb = bb->next_bb;
2468 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2471 MonoMethodHeader *header;
2473 MonoJitInfoFlags flags = JIT_INFO_NONE;
2474 int num_clauses, num_holes = 0;
2475 guint32 stack_size = 0;
2477 g_assert (method_to_compile == cfg->method);
2478 header = cfg->header;
2481 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2483 if (cfg->arch_eh_jit_info) {
2484 MonoJitArgumentInfo *arg_info;
2485 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2488 * This cannot be computed during stack walking, as
2489 * mono_arch_get_argument_info () is not signal safe.
2491 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2492 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2495 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2498 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2499 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2501 if (cfg->thunk_area)
2502 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2504 if (cfg->try_block_holes) {
2505 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2506 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2507 MonoExceptionClause *ec = hole->clause;
2508 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2509 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2510 g_assert (clause_last_bb);
2512 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2513 if (clause_last_bb->native_offset != hole_end)
2517 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2518 if (G_UNLIKELY (cfg->verbose_level >= 4))
2519 printf ("Number of try block holes %d\n", num_holes);
2522 if (COMPILE_LLVM (cfg))
2523 num_clauses = cfg->llvm_ex_info_len;
2525 num_clauses = header->num_clauses;
2527 if (cfg->method->dynamic)
2528 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2530 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2531 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2532 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2534 if (COMPILE_LLVM (cfg))
2535 jinfo->from_llvm = TRUE;
2539 MonoGenericJitInfo *gi;
2540 GSList *loclist = NULL;
2542 gi = mono_jit_info_get_generic_jit_info (jinfo);
2545 if (cfg->method->dynamic)
2546 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2548 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2549 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2551 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2552 mini_method_get_context (method_to_compile)->method_inst ||
2553 method_to_compile->klass->valuetype) {
2554 g_assert (cfg->rgctx_var);
2559 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2560 mini_method_get_context (method_to_compile)->method_inst ||
2561 method_to_compile->klass->valuetype) {
2562 inst = cfg->rgctx_var;
2563 if (!COMPILE_LLVM (cfg))
2564 g_assert (inst->opcode == OP_REGOFFSET);
2565 loclist = cfg->rgctx_loclist;
2567 inst = cfg->args [0];
2568 loclist = cfg->this_loclist;
2572 /* Needed to handle async exceptions */
2576 gi->nlocs = g_slist_length (loclist);
2577 if (cfg->method->dynamic)
2578 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2580 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2582 for (l = loclist; l; l = l->next) {
2583 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2588 if (COMPILE_LLVM (cfg)) {
2589 g_assert (cfg->llvm_this_reg != -1);
2590 gi->this_in_reg = 0;
2591 gi->this_reg = cfg->llvm_this_reg;
2592 gi->this_offset = cfg->llvm_this_offset;
2593 } else if (inst->opcode == OP_REGVAR) {
2594 gi->this_in_reg = 1;
2595 gi->this_reg = inst->dreg;
2597 g_assert (inst->opcode == OP_REGOFFSET);
2599 g_assert (inst->inst_basereg == X86_EBP);
2600 #elif defined(TARGET_AMD64)
2601 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2603 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2605 gi->this_in_reg = 0;
2606 gi->this_reg = inst->inst_basereg;
2607 gi->this_offset = inst->inst_offset;
2612 MonoTryBlockHoleTableJitInfo *table;
2615 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2616 table->num_holes = (guint16)num_holes;
2618 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2619 guint32 start_bb_offset;
2620 MonoTryBlockHoleJitInfo *hole;
2621 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2622 MonoExceptionClause *ec = hole_data->clause;
2623 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2624 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2625 g_assert (clause_last_bb);
2627 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2628 if (clause_last_bb->native_offset == hole_end)
2631 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2632 hole = &table->holes [i++];
2633 hole->clause = hole_data->clause - &header->clauses [0];
2634 hole->offset = (guint32)hole_data->start_offset;
2635 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2637 if (G_UNLIKELY (cfg->verbose_level >= 4))
2638 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2640 g_assert (i == num_holes);
2643 if (jinfo->has_arch_eh_info) {
2644 MonoArchEHJitInfo *info;
2646 info = mono_jit_info_get_arch_eh_info (jinfo);
2648 info->stack_size = stack_size;
2651 if (cfg->thunk_area) {
2652 MonoThunkJitInfo *info;
2654 info = mono_jit_info_get_thunk_info (jinfo);
2655 info->thunks_offset = cfg->thunks_offset;
2656 info->thunks_size = cfg->thunk_area;
2659 if (COMPILE_LLVM (cfg)) {
2661 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2662 } else if (header->num_clauses) {
2665 for (i = 0; i < header->num_clauses; i++) {
2666 MonoExceptionClause *ec = &header->clauses [i];
2667 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2668 MonoBasicBlock *tblock;
2669 MonoInst *exvar, *spvar;
2671 ei->flags = ec->flags;
2673 if (G_UNLIKELY (cfg->verbose_level >= 4))
2674 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);
2677 * The spvars are needed by mono_arch_install_handler_block_guard ().
2679 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2682 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2683 spvar = mono_find_spvar_for_region (cfg, region);
2685 ei->exvar_offset = spvar->inst_offset;
2687 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2688 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2691 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2692 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2694 ei->data.filter = cfg->native_code + tblock->native_offset;
2696 ei->data.catch_class = ec->data.catch_class;
2699 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2701 g_assert (tblock->native_offset);
2702 ei->try_start = cfg->native_code + tblock->native_offset;
2703 if (tblock->extend_try_block) {
2705 * Extend the try block backwards to include parts of the previous call
2708 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
2710 if (ec->try_offset + ec->try_len < header->code_size)
2711 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2713 tblock = cfg->bb_exit;
2714 if (G_UNLIKELY (cfg->verbose_level >= 4))
2715 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
2717 if (!tblock->native_offset) {
2719 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2720 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2721 if (bb && bb->native_offset) {
2727 ei->try_end = cfg->native_code + tblock->native_offset;
2728 g_assert (tblock->native_offset);
2729 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2731 ei->handler_start = cfg->native_code + tblock->native_offset;
2733 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2734 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2735 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2736 if (hole->clause == ec && hole_end == ei->try_end) {
2737 if (G_UNLIKELY (cfg->verbose_level >= 4))
2738 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2740 ei->try_end = cfg->native_code + hole->start_offset;
2745 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2747 if (ec->handler_offset + ec->handler_len < header->code_size) {
2748 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2749 if (tblock->native_offset) {
2750 end_offset = tblock->native_offset;
2754 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2755 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2756 if (bb && bb->native_offset) {
2761 end_offset = tblock->native_offset + tblock->native_length;
2764 end_offset = cfg->epilog_begin;
2766 ei->data.handler_end = cfg->native_code + end_offset;
2771 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2773 for (i = 0; i < jinfo->num_clauses; i++) {
2774 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2775 int start = (guint8*)ei->try_start - cfg->native_code;
2776 int end = (guint8*)ei->try_end - cfg->native_code;
2777 int handler = (guint8*)ei->handler_start - cfg->native_code;
2778 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2780 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2784 if (cfg->encoded_unwind_ops) {
2785 /* Generated by LLVM */
2786 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2787 g_free (cfg->encoded_unwind_ops);
2788 } else if (cfg->unwind_ops) {
2790 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2791 guint32 unwind_desc;
2793 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2795 if (cfg->has_unwind_info_for_epilog) {
2796 MonoArchEHJitInfo *info;
2798 info = mono_jit_info_get_arch_eh_info (jinfo);
2800 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2802 jinfo->unwind_info = unwind_desc;
2803 g_free (unwind_info);
2805 jinfo->unwind_info = cfg->used_int_regs;
2811 /* Return whenever METHOD is a gsharedvt method */
2813 is_gsharedvt_method (MonoMethod *method)
2815 MonoGenericContext *context;
2816 MonoGenericInst *inst;
2819 if (!method->is_inflated)
2821 context = mono_method_get_context (method);
2822 inst = context->class_inst;
2824 for (i = 0; i < inst->type_argc; ++i)
2825 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2828 inst = context->method_inst;
2830 for (i = 0; i < inst->type_argc; ++i)
2831 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2838 is_open_method (MonoMethod *method)
2840 MonoGenericContext *context;
2842 if (!method->is_inflated)
2844 context = mono_method_get_context (method);
2845 if (context->class_inst && context->class_inst->is_open)
2847 if (context->method_inst && context->method_inst->is_open)
2853 mono_insert_nop_in_empty_bb (MonoCompile *cfg)
2856 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2860 MONO_INST_NEW (cfg, nop, OP_NOP);
2861 MONO_ADD_INS (bb, nop);
2865 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
2867 MonoInst *poll_addr, *ins;
2869 if (cfg->disable_gc_safe_points)
2872 if (cfg->verbose_level > 1)
2873 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
2875 #if defined(__native_client_codegen__)
2876 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
2878 g_assert (mono_threads_is_coop_enabled ());
2879 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
2882 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
2883 ins->sreg1 = poll_addr->dreg;
2885 if (bblock->flags & BB_EXCEPTION_HANDLER) {
2886 MonoInst *eh_op = bblock->code;
2888 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
2891 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
2892 // skip all EH relateds ops
2893 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
2895 next_eh_op = eh_op->next;
2899 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
2900 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2901 } else if (bblock == cfg->bb_entry) {
2902 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
2903 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2906 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
2907 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2912 This code inserts safepoints into managed code at important code paths.
2915 -the first basic block
2916 -landing BB for exception handlers
2921 mono_insert_safepoints (MonoCompile *cfg)
2925 #if !defined(__native_client_codegen__)
2926 if (!mono_threads_is_coop_enabled ())
2930 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2931 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2932 #if defined(__native_client__) || defined(__native_client_codegen__)
2933 gpointer poll_func = &mono_nacl_gc;
2935 g_assert (mono_threads_is_coop_enabled ());
2936 gpointer poll_func = &mono_threads_state_poll;
2939 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
2940 if (cfg->verbose_level > 1)
2941 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
2946 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
2947 if (cfg->verbose_level > 1)
2948 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
2952 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2953 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2955 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
2956 (info->d.icall.func == mono_thread_interruption_checkpoint ||
2957 info->d.icall.func == mono_threads_exit_gc_safe_region_unbalanced)) {
2958 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
2959 if (cfg->verbose_level > 1)
2960 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
2965 if (cfg->verbose_level > 1)
2966 printf ("INSERTING SAFEPOINTS\n");
2967 if (cfg->verbose_level > 2)
2968 mono_print_code (cfg, "BEFORE SAFEPOINTS");
2970 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2971 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
2972 mono_create_gc_safepoint (cfg, bb);
2975 if (cfg->verbose_level > 2)
2976 mono_print_code (cfg, "AFTER SAFEPOINTS");
2982 mono_insert_branches_between_bblocks (MonoCompile *cfg)
2986 /* Add branches between non-consecutive bblocks */
2987 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2988 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
2989 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
2990 /* we are careful when inverting, since bugs like #59580
2991 * could show up when dealing with NaNs.
2993 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
2994 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
2995 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
2996 bb->last_ins->inst_false_bb = tmp;
2998 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3000 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3001 inst->opcode = OP_BR;
3002 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3003 mono_bblock_add_inst (bb, inst);
3008 if (cfg->verbose_level >= 4) {
3009 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3010 MonoInst *tree = bb->code;
3011 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3014 for (; tree; tree = tree->next) {
3015 mono_print_ins_index (-1, tree);
3021 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3022 bb->max_vreg = cfg->next_vreg;
3027 init_backend (MonoBackend *backend)
3029 #ifdef MONO_ARCH_NEED_GOT_VAR
3030 backend->need_got_var = 1;
3032 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
3033 backend->have_card_table_wb = 1;
3035 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3036 backend->have_op_generic_class_init = 1;
3038 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3039 backend->emulate_mul_div = 1;
3041 #ifdef MONO_ARCH_EMULATE_DIV
3042 backend->emulate_div = 1;
3044 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3045 backend->emulate_long_shift_opts = 1;
3047 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3048 backend->have_objc_get_selector = 1;
3050 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE
3051 backend->have_generalized_imt_trampoline = 1;
3053 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3054 backend->gshared_supported = 1;
3056 if (MONO_ARCH_USE_FPSTACK)
3057 backend->use_fpstack = 1;
3058 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3059 backend->have_liverange_ops = 1;
3061 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3062 backend->have_op_tail_call = 1;
3064 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3065 backend->monitor_enter_adjustment = 1;
3067 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3069 #if defined(__mono_ilp32__)
3072 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3073 backend->have_dummy_init = 1;
3075 #ifdef MONO_ARCH_NEED_DIV_CHECK
3076 backend->need_div_check = 1;
3078 #ifdef NO_UNALIGNED_ACCESS
3079 backend->no_unaligned_access = 1;
3081 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3082 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3084 #ifdef MONO_ARCH_NO_DIV_WITH_MUL
3085 backend->disable_div_with_mul = 1;
3090 * mini_method_compile:
3091 * @method: the method to compile
3092 * @opts: the optimization flags to use
3093 * @domain: the domain where the method will be compiled in
3094 * @flags: compilation flags
3095 * @parts: debug flag
3097 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3098 * field in the returned struct to see if compilation succeded.
3101 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3103 MonoMethodHeader *header;
3104 MonoMethodSignature *sig;
3107 int i, code_size_ratio;
3108 gboolean try_generic_shared, try_llvm = FALSE;
3109 MonoMethod *method_to_compile, *method_to_register;
3110 gboolean method_is_gshared = FALSE;
3111 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3112 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3113 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3114 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3115 gboolean gsharedvt_method = FALSE;
3117 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3119 static gboolean verbose_method_inited;
3120 static const char *verbose_method_name;
3122 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3123 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3124 mono_profiler_method_jit (method);
3125 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3126 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3128 gsharedvt_method = is_gsharedvt_method (method);
3131 * In AOT mode, method can be the following:
3132 * - a gsharedvt method.
3133 * - a method inflated with type parameters. This is for ref/partial sharing.
3134 * - a method inflated with concrete types.
3137 if (is_open_method (method)) {
3138 try_generic_shared = TRUE;
3139 method_is_gshared = TRUE;
3141 try_generic_shared = FALSE;
3143 g_assert (opts & MONO_OPT_GSHARED);
3145 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3146 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3147 if (mini_is_gsharedvt_sharable_method (method)) {
3149 if (!mono_debug_count ())
3150 try_generic_shared = FALSE;
3156 if (try_generic_shared && !mono_debug_count ())
3157 try_generic_shared = FALSE;
3160 if (opts & MONO_OPT_GSHARED) {
3161 if (try_generic_shared)
3162 mono_stats.generics_sharable_methods++;
3163 else if (mono_method_is_generic_impl (method))
3164 mono_stats.generics_unsharable_methods++;
3168 try_llvm = mono_use_llvm || llvm;
3172 if (method_is_gshared) {
3173 method_to_compile = method;
3175 if (try_generic_shared) {
3176 method_to_compile = mini_get_shared_method (method);
3177 g_assert (method_to_compile);
3179 method_to_compile = method;
3183 cfg = g_new0 (MonoCompile, 1);
3184 cfg->method = method_to_compile;
3185 cfg->mempool = mono_mempool_new ();
3187 cfg->prof_options = mono_profiler_get_events ();
3188 cfg->run_cctors = run_cctors;
3189 cfg->domain = domain;
3190 cfg->verbose_level = mini_verbose;
3191 cfg->compile_aot = compile_aot;
3192 cfg->full_aot = full_aot;
3193 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3194 cfg->skip_visibility = method->skip_visibility;
3195 cfg->orig_method = method;
3196 cfg->gen_seq_points = !debug_options.no_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3197 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3198 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3199 cfg->backend = current_backend;
3201 #ifdef PLATFORM_ANDROID
3202 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3203 /* FIXME: Why is this needed */
3204 cfg->gen_seq_points = FALSE;
3205 cfg->gen_sdb_seq_points = FALSE;
3208 if (cfg->method->wrapper_type == MONO_WRAPPER_ALLOC) {
3209 /* We can't have seq points inside gc critical regions */
3210 cfg->gen_seq_points = FALSE;
3211 cfg->gen_sdb_seq_points = FALSE;
3213 /* coop / nacl requires loop detection to happen */
3214 #if defined(__native_client_codegen__)
3215 cfg->opt |= MONO_OPT_LOOP;
3217 if (mono_threads_is_coop_enabled ())
3218 cfg->opt |= MONO_OPT_LOOP;
3220 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3221 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3222 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3223 cfg->disable_direct_icalls = disable_direct_icalls;
3224 cfg->direct_pinvoke = (flags & JIT_FLAG_DIRECT_PINVOKE) != 0;
3225 if (try_generic_shared)
3226 cfg->gshared = TRUE;
3227 cfg->compile_llvm = try_llvm;
3228 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3229 if (cfg->compile_aot)
3230 cfg->method_index = aot_method_index;
3233 if (!mono_debug_count ())
3234 cfg->opt &= ~MONO_OPT_FLOAT32;
3237 cfg->opt &= ~MONO_OPT_SIMD;
3238 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3239 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3241 if (cfg->gen_seq_points)
3242 cfg->seq_points = g_ptr_array_new ();
3243 mono_error_init (&cfg->error);
3245 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || mono_class_is_gtd (method->klass) || method_is_gshared)) {
3246 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3250 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3251 MonoMethodInflated *inflated;
3252 MonoGenericContext *context;
3254 if (gsharedvt_method) {
3255 g_assert (method->is_inflated);
3256 inflated = (MonoMethodInflated*)method;
3257 context = &inflated->context;
3259 /* We are compiling a gsharedvt method directly */
3260 g_assert (compile_aot);
3262 g_assert (method_to_compile->is_inflated);
3263 inflated = (MonoMethodInflated*)method_to_compile;
3264 context = &inflated->context;
3267 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3268 cfg->gsctx_context = context;
3270 cfg->gsharedvt = TRUE;
3271 if (!cfg->llvm_only) {
3272 cfg->disable_llvm = TRUE;
3273 cfg->exception_message = g_strdup ("gsharedvt");
3278 method_to_register = method_to_compile;
3280 g_assert (method == method_to_compile);
3281 method_to_register = method;
3283 cfg->method_to_register = method_to_register;
3285 mono_error_init (&err);
3286 sig = mono_method_signature_checked (cfg->method, &err);
3288 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3289 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3290 mono_error_cleanup (&err);
3291 if (MONO_METHOD_COMPILE_END_ENABLED ())
3292 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3296 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3298 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3299 if (MONO_METHOD_COMPILE_END_ENABLED ())
3300 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3306 static gboolean inited;
3312 * Check for methods which cannot be compiled by LLVM early, to avoid
3313 * the extra compilation pass.
3315 if (COMPILE_LLVM (cfg)) {
3316 mono_llvm_check_method_supported (cfg);
3317 if (cfg->disable_llvm) {
3318 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3319 //nm = mono_method_full_name (cfg->method, TRUE);
3320 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3323 if (cfg->llvm_only) {
3324 g_free (cfg->exception_message);
3325 cfg->disable_aot = TRUE;
3328 mono_destroy_compile (cfg);
3330 goto restart_compile;
3336 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3337 if (debug_options.mdb_optimizations) {
3338 cfg->disable_reuse_registers = TRUE;
3339 cfg->disable_reuse_stack_slots = TRUE;
3341 * This decreases the change the debugger will read registers/stack slots which are
3342 * not yet initialized.
3344 cfg->disable_initlocals_opt = TRUE;
3346 cfg->extend_live_ranges = TRUE;
3348 /* The debugger needs all locals to be on the stack or in a global register */
3349 cfg->disable_vreg_to_lvreg = TRUE;
3351 /* Don't remove unused variables when running inside the debugger since the user
3352 * may still want to view them. */
3353 cfg->disable_deadce_vars = TRUE;
3355 cfg->opt &= ~MONO_OPT_DEADCE;
3356 cfg->opt &= ~MONO_OPT_INLINE;
3357 cfg->opt &= ~MONO_OPT_COPYPROP;
3358 cfg->opt &= ~MONO_OPT_CONSPROP;
3360 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3361 cfg->disable_out_of_line_bblocks = TRUE;
3364 if (mono_using_xdebug) {
3366 * Make each variable use its own register/stack slot and extend
3367 * their liveness to cover the whole method, making them displayable
3368 * in gdb even after they are dead.
3370 cfg->disable_reuse_registers = TRUE;
3371 cfg->disable_reuse_stack_slots = TRUE;
3372 cfg->extend_live_ranges = TRUE;
3373 cfg->compute_precise_live_ranges = TRUE;
3376 mini_gc_init_cfg (cfg);
3378 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
3379 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3381 /* These wrappers are using linkonce linkage, so they can't access GOT slots */
3382 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) {
3383 cfg->disable_gc_safe_points = TRUE;
3384 /* This is safe, these wrappers only store to the stack */
3385 cfg->gen_write_barriers = FALSE;
3389 if (COMPILE_LLVM (cfg)) {
3390 cfg->opt |= MONO_OPT_ABCREM;
3393 if (!verbose_method_inited) {
3394 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3395 verbose_method_inited = TRUE;
3397 if (verbose_method_name) {
3398 const char *name = verbose_method_name;
3400 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3401 MonoMethodDesc *desc;
3403 desc = mono_method_desc_new (name, TRUE);
3404 if (mono_method_desc_full_match (desc, cfg->method)) {
3405 cfg->verbose_level = 4;
3407 mono_method_desc_free (desc);
3409 if (strcmp (cfg->method->name, name) == 0)
3410 cfg->verbose_level = 4;
3414 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3416 if (cfg->verbose_level > 0) {
3419 method_name = mono_method_get_full_name (method);
3420 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3422 if (COMPILE_LLVM (cfg))
3423 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3424 else if (cfg->gsharedvt)
3425 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3426 else if (cfg->gshared)
3427 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3429 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3431 g_free (method_name);
3434 if (cfg->opt & MONO_OPT_ABCREM)
3435 cfg->opt |= MONO_OPT_SSA;
3437 cfg->rs = mono_regstate_new ();
3438 cfg->next_vreg = cfg->rs->next_vreg;
3440 /* FIXME: Fix SSA to handle branches inside bblocks */
3441 if (cfg->opt & MONO_OPT_SSA)
3442 cfg->enable_extended_bblocks = FALSE;
3445 * FIXME: This confuses liveness analysis because variables which are assigned after
3446 * a branch inside a bblock become part of the kill set, even though the assignment
3447 * might not get executed. This causes the optimize_initlocals pass to delete some
3448 * assignments which are needed.
3449 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3452 //cfg->enable_extended_bblocks = TRUE;
3454 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3455 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3456 if (mini_get_debug_options ()->break_on_unverified)
3462 * create MonoInst* which represents arguments and local variables
3464 mono_compile_create_vars (cfg);
3466 mono_cfg_dump_create_context (cfg);
3467 mono_cfg_dump_begin_group (cfg);
3469 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));
3470 mono_cfg_dump_ir (cfg, "method-to-ir");
3472 if (cfg->gdump_ctx != NULL) {
3473 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3474 mono_insert_nop_in_empty_bb (cfg);
3475 mono_cfg_dump_ir (cfg, "mono_insert_nop_in_empty_bb");
3479 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3481 if (MONO_METHOD_COMPILE_END_ENABLED ())
3482 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3485 mono_destroy_compile (cfg);
3486 try_generic_shared = FALSE;
3487 goto restart_compile;
3489 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3491 if (MONO_METHOD_COMPILE_END_ENABLED ())
3492 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3493 /* cfg contains the details of the failure, so let the caller cleanup */
3497 cfg->stat_basic_blocks += cfg->num_bblocks;
3499 if (COMPILE_LLVM (cfg)) {
3502 /* The IR has to be in SSA form for LLVM */
3503 cfg->opt |= MONO_OPT_SSA;
3507 // Allow SSA on the result value
3508 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3510 // Add an explicit return instruction referencing the return value
3511 MONO_INST_NEW (cfg, ins, OP_SETRET);
3512 ins->sreg1 = cfg->ret->dreg;
3514 MONO_ADD_INS (cfg->bb_exit, ins);
3517 cfg->opt &= ~MONO_OPT_LINEARS;
3520 cfg->opt &= ~MONO_OPT_BRANCH;
3523 /* todo: remove code when we have verified that the liveness for try/catch blocks
3527 * Currently, this can't be commented out since exception blocks are not
3528 * processed during liveness analysis.
3529 * It is also needed, because otherwise the local optimization passes would
3530 * delete assignments in cases like this:
3532 * <something which throws>
3534 * This also allows SSA to be run on methods containing exception clauses, since
3535 * SSA will ignore variables marked VOLATILE.
3537 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3538 mono_cfg_dump_ir (cfg, "liveness_handle_exception_clauses");
3540 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3541 mono_cfg_dump_ir (cfg, "handle_out_of_line_bblock");
3543 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3545 if (!COMPILE_LLVM (cfg)) {
3546 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3547 mono_cfg_dump_ir (cfg, "decompose_long_opts");
3550 /* Should be done before branch opts */
3551 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP)) {
3552 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3553 mono_cfg_dump_ir (cfg, "local_cprop");
3556 if (cfg->flags & MONO_CFG_HAS_TYPE_CHECK) {
3557 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_typechecks, mono_decompose_typechecks (cfg));
3558 if (cfg->gdump_ctx != NULL) {
3559 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3560 mono_insert_nop_in_empty_bb (cfg);
3562 mono_cfg_dump_ir (cfg, "decompose_typechecks");
3566 * Should be done after cprop which can do strength reduction on
3567 * some of these ops, after propagating immediates.
3569 if (cfg->has_emulated_ops) {
3570 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3571 mono_cfg_dump_ir (cfg, "local_emulate_ops");
3574 if (cfg->opt & MONO_OPT_BRANCH) {
3575 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3576 mono_cfg_dump_ir (cfg, "optimize_branches");
3579 /* This must be done _before_ global reg alloc and _after_ decompose */
3580 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3581 mono_cfg_dump_ir (cfg, "handle_global_vregs");
3582 if (cfg->opt & MONO_OPT_DEADCE) {
3583 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3584 mono_cfg_dump_ir (cfg, "local_deadce");
3586 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS) {
3587 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3588 mono_cfg_dump_ir (cfg, "local_alias_analysis");
3590 /* Disable this for LLVM to make the IR easier to handle */
3591 if (!COMPILE_LLVM (cfg)) {
3592 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3593 mono_cfg_dump_ir (cfg, "if_conversion");
3596 mono_threads_safepoint ();
3598 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3599 mono_cfg_dump_ir (cfg, "bb_ordering");
3601 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3603 * we disable some optimizations if there are too many variables
3604 * because JIT time may become too expensive. The actual number needs
3605 * to be tweaked and eventually the non-linear algorithms should be fixed.
3607 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3608 cfg->disable_ssa = TRUE;
3611 if (cfg->opt & MONO_OPT_LOOP) {
3612 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3613 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3616 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3617 mono_cfg_dump_ir (cfg, "insert_safepoints");
3619 /* after method_to_ir */
3621 if (MONO_METHOD_COMPILE_END_ENABLED ())
3622 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3627 if (header->num_clauses)
3628 cfg->disable_ssa = TRUE;
3631 //#define DEBUGSSA "logic_run"
3632 //#define DEBUGSSA_CLASS "Tests"
3635 if (!cfg->disable_ssa) {
3636 mono_local_cprop (cfg);
3639 mono_ssa_compute (cfg);
3643 if (cfg->opt & MONO_OPT_SSA) {
3644 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3646 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3647 mono_cfg_dump_ir (cfg, "ssa_compute");
3650 if (cfg->verbose_level >= 2) {
3657 /* after SSA translation */
3659 if (MONO_METHOD_COMPILE_END_ENABLED ())
3660 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3664 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3665 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3667 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3668 mono_cfg_dump_ir (cfg, "ssa_cprop");
3674 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3675 //mono_ssa_strength_reduction (cfg);
3677 if (cfg->opt & MONO_OPT_DEADCE) {
3678 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3679 mono_cfg_dump_ir (cfg, "ssa_deadce");
3682 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM)) {
3683 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3684 mono_cfg_dump_ir (cfg, "perform_abc_removal");
3687 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3688 mono_cfg_dump_ir (cfg, "ssa_remove");
3689 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3690 mono_cfg_dump_ir (cfg, "local_cprop2");
3691 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3692 mono_cfg_dump_ir (cfg, "handle_global_vregs2");
3693 if (cfg->opt & MONO_OPT_DEADCE) {
3694 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3695 mono_cfg_dump_ir (cfg, "local_deadce2");
3698 if (cfg->opt & MONO_OPT_BRANCH) {
3699 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3700 mono_cfg_dump_ir (cfg, "optimize_branches2");
3705 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3706 mono_ssa_loop_invariant_code_motion (cfg);
3707 mono_cfg_dump_ir (cfg, "loop_invariant_code_motion");
3708 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3709 if (cfg->opt & MONO_OPT_ABCREM) {
3710 mono_perform_abc_removal (cfg);
3711 mono_cfg_dump_ir (cfg, "abc_removal");
3715 /* after SSA removal */
3717 if (MONO_METHOD_COMPILE_END_ENABLED ())
3718 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3722 if (cfg->llvm_only && cfg->gsharedvt)
3723 mono_ssa_remove_gsharedvt (cfg);
3725 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3726 if (COMPILE_SOFT_FLOAT (cfg))
3727 mono_decompose_soft_float (cfg);
3729 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3730 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS) {
3731 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3732 mono_cfg_dump_ir (cfg, "decompose_array_access_opts");
3736 #ifndef MONO_ARCH_GOT_REG
3741 g_assert (cfg->got_var_allocated);
3744 * Allways allocate the GOT var to a register, because keeping it
3745 * in memory will increase the number of live temporaries in some
3746 * code created by inssel.brg, leading to the well known spills+
3747 * branches problem. Testcase: mcs crash in
3748 * System.MonoCustomAttrs:GetCustomAttributes.
3750 #ifdef MONO_ARCH_GOT_REG
3751 got_reg = MONO_ARCH_GOT_REG;
3753 regs = mono_arch_get_global_int_regs (cfg);
3755 got_reg = GPOINTER_TO_INT (regs->data);
3758 cfg->got_var->opcode = OP_REGVAR;
3759 cfg->got_var->dreg = got_reg;
3760 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3764 * Have to call this again to process variables added since the first call.
3766 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3768 if (cfg->opt & MONO_OPT_LINEARS) {
3769 GList *vars, *regs, *l;
3771 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3772 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3773 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3774 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3776 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3777 regs = mono_arch_get_global_int_regs (cfg);
3778 /* Remove the reg reserved for holding the GOT address */
3780 for (l = regs; l; l = l->next) {
3781 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3782 regs = g_list_delete_link (regs, l);
3787 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
3788 mono_cfg_dump_ir (cfg, "linear_scan");
3792 //mono_print_code (cfg, "");
3796 /* variables are allocated after decompose, since decompose could create temps */
3797 if (!COMPILE_LLVM (cfg)) {
3798 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
3799 mono_cfg_dump_ir (cfg, "arch_allocate_vars");
3800 if (cfg->exception_type)
3805 mono_allocate_gsharedvt_vars (cfg);
3807 if (!COMPILE_LLVM (cfg)) {
3808 gboolean need_local_opts;
3809 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
3810 mono_cfg_dump_ir (cfg, "spill_global_vars");
3812 if (need_local_opts || cfg->compile_aot) {
3813 /* To optimize code created by spill_global_vars */
3814 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
3815 if (cfg->opt & MONO_OPT_DEADCE)
3816 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
3817 mono_cfg_dump_ir (cfg, "needs_local_opts");
3821 mono_insert_branches_between_bblocks (cfg);
3823 if (COMPILE_LLVM (cfg)) {
3827 /* The IR has to be in SSA form for LLVM */
3828 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3829 cfg->exception_message = g_strdup ("SSA disabled.");
3830 cfg->disable_llvm = TRUE;
3833 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3834 mono_decompose_array_access_opts (cfg);
3836 if (!cfg->disable_llvm)
3837 mono_llvm_emit_method (cfg);
3838 if (cfg->disable_llvm) {
3839 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3840 //nm = mono_method_full_name (cfg->method, TRUE);
3841 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3844 if (cfg->llvm_only) {
3845 cfg->disable_aot = TRUE;
3848 mono_destroy_compile (cfg);
3850 goto restart_compile;
3853 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3854 nm = mono_method_full_name (cfg->method, TRUE);
3855 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3857 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3862 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
3863 mono_cfg_dump_ir (cfg, "codegen");
3864 if (cfg->exception_type)
3868 if (COMPILE_LLVM (cfg))
3869 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3871 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3873 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
3875 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3876 if (cfg->extend_live_ranges) {
3877 /* Extend live ranges to cover the whole method */
3878 for (i = 0; i < cfg->num_varinfo; ++i)
3879 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3883 if (!cfg->compile_aot)
3884 mono_save_xdebug_info (cfg);
3886 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
3888 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
3890 if (cfg->verbose_level >= 2) {
3891 char *id = mono_method_full_name (cfg->method, FALSE);
3892 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3896 if (!cfg->compile_aot) {
3897 mono_domain_lock (cfg->domain);
3898 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
3900 if (cfg->method->dynamic)
3901 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
3902 mono_domain_unlock (cfg->domain);
3907 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
3910 /* collect statistics */
3911 #ifndef DISABLE_PERFCOUNTERS
3912 mono_perfcounters->jit_methods++;
3913 mono_perfcounters->jit_bytes += header->code_size;
3915 mono_jit_stats.allocated_code_size += cfg->code_len;
3916 code_size_ratio = cfg->code_len;
3917 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
3918 mono_jit_stats.biggest_method_size = code_size_ratio;
3919 g_free (mono_jit_stats.biggest_method);
3920 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3922 code_size_ratio = (code_size_ratio * 100) / header->code_size;
3923 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
3924 mono_jit_stats.max_code_size_ratio = code_size_ratio;
3925 g_free (mono_jit_stats.max_ratio_method);
3926 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3928 mono_jit_stats.native_code_size += cfg->code_len;
3930 if (MONO_METHOD_COMPILE_END_ENABLED ())
3931 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3933 mono_cfg_dump_close_group (cfg);
3939 mini_class_has_reference_variant_generic_argument (MonoCompile *cfg, MonoClass *klass, int context_used)
3942 MonoGenericContainer *container;
3943 MonoGenericInst *ginst;
3945 if (mono_class_is_ginst (klass)) {
3946 container = mono_class_get_generic_container (mono_class_get_generic_class (klass)->container_class);
3947 ginst = mono_class_get_generic_class (klass)->context.class_inst;
3948 } else if (mono_class_is_gtd (klass) && context_used) {
3949 container = mono_class_get_generic_container (klass);
3950 ginst = container->context.class_inst;
3955 for (i = 0; i < container->type_argc; ++i) {
3957 if (!(mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT)))
3959 type = ginst->type_argv [i];
3960 if (mini_type_is_reference (type))
3967 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
3969 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
3973 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
3975 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
3976 hole->clause = clause;
3977 hole->start_offset = start - cfg->native_code;
3978 hole->basic_block = bb;
3980 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
3984 mono_cfg_set_exception (MonoCompile *cfg, int type)
3986 cfg->exception_type = type;
3989 /* Assumes ownership of the MSG argument */
3991 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
3993 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3994 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", "%s", msg);
3997 #endif /* DISABLE_JIT */
4000 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
4002 MonoDomain *domain = mono_get_root_domain ();
4007 if (info->uw_info) {
4008 uw_info = info->uw_info;
4009 info_len = info->uw_info_len;
4011 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
4014 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
4015 jinfo->d.method = wrapper;
4016 jinfo->code_start = info->code;
4017 jinfo->code_size = info->code_size;
4018 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
4026 GTimer *mono_time_track_start ()
4028 return g_timer_new ();
4031 void mono_time_track_end (double *time, GTimer *timer)
4033 g_timer_stop (timer);
4034 *time += g_timer_elapsed (timer, NULL);
4035 g_timer_destroy (timer);
4038 void mono_update_jit_stats (MonoCompile *cfg)
4040 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4041 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4042 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4043 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4044 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4045 mono_jit_stats.regvars += cfg->stat_n_regvars;
4046 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4047 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4048 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4052 * mono_jit_compile_method_inner:
4054 * Main entry point for the JIT.
4057 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4060 gpointer code = NULL;
4061 MonoJitInfo *jinfo, *info;
4063 MonoException *ex = NULL;
4064 guint32 prof_options;
4066 MonoMethod *prof_method, *shared;
4068 mono_error_init (error);
4070 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4071 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4073 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4075 if (!piinfo->addr) {
4076 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4077 piinfo->addr = mono_lookup_internal_call (method);
4078 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4080 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);
4082 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);
4085 mono_lookup_pinvoke_call (method, NULL, NULL);
4087 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4088 gpointer compiled_method = mono_compile_method_checked (nm, error);
4089 return_val_if_nok (error, NULL);
4090 code = mono_get_addr_from_ftnptr (compiled_method);
4091 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4093 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4095 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4097 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4098 const char *name = method->name;
4099 char *full_name, *msg;
4102 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4103 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4104 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4107 * We need to make sure this wrapper
4108 * is compiled because it might end up
4109 * in an (M)RGCTX if generic sharing
4110 * is enabled, and would be called
4111 * indirectly. If it were a
4112 * trampoline we'd try to patch that
4113 * indirect call, which is not
4116 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4117 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4118 if (mono_llvm_only) {
4119 nm = mono_marshal_get_delegate_invoke (method, NULL);
4120 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4121 mono_error_assert_ok (error);
4122 return mono_get_addr_from_ftnptr (compiled_ptr);
4124 return mono_create_delegate_trampoline (target_domain, method->klass);
4125 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4126 nm = mono_marshal_get_delegate_begin_invoke (method);
4127 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4128 mono_error_assert_ok (error);
4129 return mono_get_addr_from_ftnptr (compiled_ptr);
4130 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4131 nm = mono_marshal_get_delegate_end_invoke (method);
4132 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4133 mono_error_assert_ok (error);
4134 return mono_get_addr_from_ftnptr (compiled_ptr);
4138 full_name = mono_method_full_name (method, TRUE);
4139 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4140 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4141 mono_error_set_exception_instance (error, ex);
4147 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4148 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4150 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4151 static MonoTrampInfo *in_tinfo, *out_tinfo;
4152 MonoTrampInfo *tinfo;
4154 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4156 if (is_in && in_tinfo)
4157 return in_tinfo->code;
4158 else if (!is_in && out_tinfo)
4159 return out_tinfo->code;
4162 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4164 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4167 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4169 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4170 jinfo = create_jit_info_for_trampoline (method, tinfo);
4171 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4180 if (mono_aot_only) {
4181 char *fullname = mono_method_full_name (method, TRUE);
4182 mono_error_set_execution_engine (error, "Attempting to JIT compile method '%s' while running in aot-only mode. See https://developer.xamarin.com/guides/ios/advanced_topics/limitations/ for more information.\n", fullname);
4188 jit_timer = mono_time_track_start ();
4189 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4190 double jit_time = 0.0;
4191 mono_time_track_end (&jit_time, jit_timer);
4192 mono_jit_stats.jit_time += jit_time;
4194 prof_method = cfg->method;
4196 switch (cfg->exception_type) {
4197 case MONO_EXCEPTION_NONE:
4199 case MONO_EXCEPTION_TYPE_LOAD:
4200 case MONO_EXCEPTION_MISSING_FIELD:
4201 case MONO_EXCEPTION_MISSING_METHOD:
4202 case MONO_EXCEPTION_FILE_NOT_FOUND:
4203 case MONO_EXCEPTION_BAD_IMAGE:
4204 case MONO_EXCEPTION_INVALID_PROGRAM: {
4205 /* Throw a type load exception if needed */
4206 if (cfg->exception_ptr) {
4207 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4209 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4210 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4211 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4212 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4213 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4214 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4215 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4216 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4217 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4218 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4219 else if (cfg->exception_type == MONO_EXCEPTION_INVALID_PROGRAM)
4220 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4222 g_assert_not_reached ();
4226 case MONO_EXCEPTION_MONO_ERROR:
4227 // FIXME: MonoError has no copy ctor
4228 g_assert (!mono_error_ok (&cfg->error));
4229 ex = mono_error_convert_to_exception (&cfg->error);
4232 g_assert_not_reached ();
4236 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4237 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4239 mono_destroy_compile (cfg);
4240 mono_error_set_exception_instance (error, ex);
4245 if (mono_method_is_generic_sharable (method, FALSE))
4246 shared = mini_get_shared_method (method);
4250 mono_domain_lock (target_domain);
4252 /* Check if some other thread already did the job. In this case, we can
4253 discard the code this thread generated. */
4255 info = mini_lookup_method (target_domain, method, shared);
4257 /* We can't use a domain specific method in another domain */
4258 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4259 code = info->code_start;
4261 discarded_jit_time += jit_time;
4265 /* The lookup + insert is atomic since this is done inside the domain lock */
4266 mono_domain_jit_code_hash_lock (target_domain);
4267 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4268 mono_domain_jit_code_hash_unlock (target_domain);
4270 code = cfg->native_code;
4272 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4273 mono_stats.generics_shared_methods++;
4275 mono_stats.gsharedvt_methods++;
4278 jinfo = cfg->jit_info;
4280 prof_options = cfg->prof_options;
4283 * Update global stats while holding a lock, instead of doing many
4284 * InterlockedIncrement operations during JITting.
4286 mono_update_jit_stats (cfg);
4288 mono_destroy_compile (cfg);
4291 if (domain_jit_info (target_domain)->jump_target_hash) {
4292 MonoJumpInfo patch_info;
4293 MonoJumpList *jlist;
4295 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4297 patch_info.next = NULL;
4298 patch_info.ip.i = 0;
4299 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4300 patch_info.data.method = method;
4301 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4303 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4304 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4305 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4306 if (!mono_error_ok (error))
4308 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4311 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4312 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE, error);
4320 /* Update llvm callees */
4321 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4322 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4325 for (l = callees; l; l = l->next) {
4326 gpointer *addr = (gpointer*)l->data;
4332 mono_emit_jit_map (jinfo);
4334 mono_domain_unlock (target_domain);
4336 if (!mono_error_ok (error))
4339 vtable = mono_class_vtable (target_domain, method->klass);
4341 g_assert (mono_class_has_failure (method->klass));
4342 mono_error_set_for_class_failure (error, method->klass);
4346 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4347 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4348 if (mono_marshal_method_from_wrapper (method)) {
4349 /* Native func wrappers have no method */
4350 /* The profiler doesn't know about wrappers, so pass the original icall method */
4351 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4354 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4355 if (prof_method != method) {
4356 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4360 if (!mono_runtime_class_init_full (vtable, error))
4366 * mini_get_underlying_type:
4368 * Return the type the JIT will use during compilation.
4369 * Handles: byref, enums, native types, generic sharing.
4370 * For gsharedvt types, it will return the original VAR/MVAR.
4373 mini_get_underlying_type (MonoType *type)
4375 return mini_type_get_underlying_type (type);
4379 mini_jit_init (void)
4381 mono_counters_register ("Discarded method code", MONO_COUNTER_JIT | MONO_COUNTER_INT, &discarded_code);
4382 mono_counters_register ("Time spent JITting discarded code", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &discarded_jit_time);
4384 mono_os_mutex_init_recursive (&jit_mutex);
4386 current_backend = g_new0 (MonoBackend, 1);
4387 init_backend (current_backend);
4392 mini_jit_cleanup (void)
4395 g_free (emul_opcode_map);
4396 g_free (emul_opcode_opcodes);
4402 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4404 g_assert_not_reached ();
4407 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4409 g_assert_not_reached ();
4414 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4417 mono_llvm_cpp_throw_exception (void)
4419 g_assert_not_reached ();
4427 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4429 g_assert_not_reached ();
4434 mono_destroy_compile (MonoCompile *cfg)
4436 g_assert_not_reached ();
4440 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4442 g_assert_not_reached ();
4445 #endif /* DISABLE_JIT */