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/utils/mono-math.h>
51 #include <mono/utils/mono-compiler.h>
52 #include <mono/utils/mono-counters.h>
53 #include <mono/utils/mono-error-internals.h>
54 #include <mono/utils/mono-logger-internals.h>
55 #include <mono/utils/mono-mmap.h>
56 #include <mono/utils/mono-path.h>
57 #include <mono/utils/mono-tls.h>
58 #include <mono/utils/mono-hwcap.h>
59 #include <mono/utils/dtrace.h>
60 #include <mono/utils/mono-threads.h>
61 #include <mono/utils/mono-threads-coop.h>
62 #include <mono/io-layer/io-layer.h>
65 #include "seq-points.h"
73 #include "jit-icalls.h"
76 #include "debugger-agent.h"
77 #include "llvm-runtime.h"
78 #include "mini-llvm.h"
80 MonoTraceSpec *mono_jit_trace_calls;
81 MonoMethodDesc *mono_inject_async_exc_method;
82 int mono_inject_async_exc_pos;
83 MonoMethodDesc *mono_break_at_bb_method;
84 int mono_break_at_bb_bb_num;
85 gboolean mono_do_x86_stack_align = TRUE;
86 gboolean mono_using_xdebug;
89 static guint32 discarded_code;
90 static double discarded_jit_time;
92 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
93 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
94 static mono_mutex_t jit_mutex;
96 MonoBackend *current_backend;
101 mono_realloc_native_code (MonoCompile *cfg)
103 return g_realloc (cfg->native_code, cfg->code_size);
107 MonoExceptionClause *clause;
108 MonoBasicBlock *basic_block;
113 * mono_emit_unwind_op:
115 * Add an unwind op with the given parameters for the list of unwind ops stored in
119 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
121 MonoUnwindOp *op = (MonoUnwindOp *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
128 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
129 if (cfg->verbose_level > 1) {
132 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
134 case DW_CFA_def_cfa_register:
135 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
137 case DW_CFA_def_cfa_offset:
138 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
141 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
147 #define MONO_INIT_VARINFO(vi,id) do { \
148 (vi)->range.first_use.pos.bid = 0xffff; \
154 * mono_unlink_bblock:
156 * Unlink two basic blocks.
159 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
165 for (i = 0; i < from->out_count; ++i) {
166 if (to == from->out_bb [i]) {
173 for (i = 0; i < from->out_count; ++i) {
174 if (from->out_bb [i] != to)
175 from->out_bb [pos ++] = from->out_bb [i];
177 g_assert (pos == from->out_count - 1);
182 for (i = 0; i < to->in_count; ++i) {
183 if (from == to->in_bb [i]) {
190 for (i = 0; i < to->in_count; ++i) {
191 if (to->in_bb [i] != from)
192 to->in_bb [pos ++] = to->in_bb [i];
194 g_assert (pos == to->in_count - 1);
200 * mono_bblocks_linked:
202 * Return whenever BB1 and BB2 are linked in the CFG.
205 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
209 for (i = 0; i < bb1->out_count; ++i) {
210 if (bb1->out_bb [i] == bb2)
218 mono_find_block_region_notry (MonoCompile *cfg, int offset)
220 MonoMethodHeader *header = cfg->header;
221 MonoExceptionClause *clause;
224 for (i = 0; i < header->num_clauses; ++i) {
225 clause = &header->clauses [i];
226 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
227 (offset < (clause->handler_offset)))
228 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
230 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
231 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
232 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
233 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
234 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
236 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
244 * mono_get_block_region_notry:
246 * Return the region corresponding to REGION, ignoring try clauses nested inside
250 mono_get_block_region_notry (MonoCompile *cfg, int region)
252 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
253 MonoMethodHeader *header = cfg->header;
256 * This can happen if a try clause is nested inside a finally clause.
258 int clause_index = (region >> 8) - 1;
259 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
261 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
268 mono_find_spvar_for_region (MonoCompile *cfg, int region)
270 region = mono_get_block_region_notry (cfg, region);
272 return (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
276 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
280 array [*dfn] = start;
281 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
282 for (i = 0; i < start->out_count; ++i) {
283 if (start->out_bb [i]->dfn)
286 start->out_bb [i]->dfn = *dfn;
287 start->out_bb [i]->df_parent = start;
288 array [*dfn] = start->out_bb [i];
289 df_visit (start->out_bb [i], dfn, array);
294 mono_reverse_branch_op (guint32 opcode)
296 static const int reverse_map [] = {
297 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
298 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
300 static const int reverse_fmap [] = {
301 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
302 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
304 static const int reverse_lmap [] = {
305 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
306 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
308 static const int reverse_imap [] = {
309 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
310 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
313 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
314 opcode = reverse_map [opcode - CEE_BEQ];
315 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
316 opcode = reverse_fmap [opcode - OP_FBEQ];
317 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
318 opcode = reverse_lmap [opcode - OP_LBEQ];
319 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
320 opcode = reverse_imap [opcode - OP_IBEQ];
322 g_assert_not_reached ();
328 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
330 type = mini_get_underlying_type (type);
333 switch (type->type) {
336 return OP_STOREI1_MEMBASE_REG;
339 return OP_STOREI2_MEMBASE_REG;
342 return OP_STOREI4_MEMBASE_REG;
346 case MONO_TYPE_FNPTR:
347 return OP_STORE_MEMBASE_REG;
348 case MONO_TYPE_CLASS:
349 case MONO_TYPE_STRING:
350 case MONO_TYPE_OBJECT:
351 case MONO_TYPE_SZARRAY:
352 case MONO_TYPE_ARRAY:
353 return OP_STORE_MEMBASE_REG;
356 return OP_STOREI8_MEMBASE_REG;
358 return OP_STORER4_MEMBASE_REG;
360 return OP_STORER8_MEMBASE_REG;
361 case MONO_TYPE_VALUETYPE:
362 if (type->data.klass->enumtype) {
363 type = mono_class_enum_basetype (type->data.klass);
366 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
367 return OP_STOREX_MEMBASE;
368 return OP_STOREV_MEMBASE;
369 case MONO_TYPE_TYPEDBYREF:
370 return OP_STOREV_MEMBASE;
371 case MONO_TYPE_GENERICINST:
372 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
373 return OP_STOREX_MEMBASE;
374 type = &type->data.generic_class->container_class->byval_arg;
378 g_assert (mini_type_var_is_vt (type));
379 return OP_STOREV_MEMBASE;
381 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
387 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
389 type = mini_get_underlying_type (type);
391 switch (type->type) {
393 return OP_LOADI1_MEMBASE;
395 return OP_LOADU1_MEMBASE;
397 return OP_LOADI2_MEMBASE;
399 return OP_LOADU2_MEMBASE;
401 return OP_LOADI4_MEMBASE;
403 return OP_LOADU4_MEMBASE;
407 case MONO_TYPE_FNPTR:
408 return OP_LOAD_MEMBASE;
409 case MONO_TYPE_CLASS:
410 case MONO_TYPE_STRING:
411 case MONO_TYPE_OBJECT:
412 case MONO_TYPE_SZARRAY:
413 case MONO_TYPE_ARRAY:
414 return OP_LOAD_MEMBASE;
417 return OP_LOADI8_MEMBASE;
419 return OP_LOADR4_MEMBASE;
421 return OP_LOADR8_MEMBASE;
422 case MONO_TYPE_VALUETYPE:
423 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
424 return OP_LOADX_MEMBASE;
425 case MONO_TYPE_TYPEDBYREF:
426 return OP_LOADV_MEMBASE;
427 case MONO_TYPE_GENERICINST:
428 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
429 return OP_LOADX_MEMBASE;
430 if (mono_type_generic_inst_is_valuetype (type))
431 return OP_LOADV_MEMBASE;
433 return OP_LOAD_MEMBASE;
437 g_assert (cfg->gshared);
438 g_assert (mini_type_var_is_vt (type));
439 return OP_LOADV_MEMBASE;
441 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
447 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
449 type = mini_get_underlying_type (type);
450 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
451 g_assert (mini_type_var_is_vt (type));
454 return mono_type_to_stind (type);
458 mono_op_imm_to_op (int opcode)
462 #if SIZEOF_REGISTER == 4
480 #if SIZEOF_REGISTER == 4
486 #if SIZEOF_REGISTER == 4
492 #if SIZEOF_REGISTER == 4
538 #if SIZEOF_REGISTER == 4
544 #if SIZEOF_REGISTER == 4
563 case OP_ICOMPARE_IMM:
565 case OP_LOCALLOC_IMM:
573 * mono_decompose_op_imm:
575 * Replace the OP_.._IMM INS with its non IMM variant.
578 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
580 int opcode2 = mono_op_imm_to_op (ins->opcode);
583 const char *spec = INS_INFO (ins->opcode);
585 if (spec [MONO_INST_SRC2] == 'l') {
586 dreg = mono_alloc_lreg (cfg);
588 /* Load the 64bit constant using decomposed ops */
589 MONO_INST_NEW (cfg, temp, OP_ICONST);
590 temp->inst_c0 = ins->inst_ls_word;
591 temp->dreg = MONO_LVREG_LS (dreg);
592 mono_bblock_insert_before_ins (bb, ins, temp);
594 MONO_INST_NEW (cfg, temp, OP_ICONST);
595 temp->inst_c0 = ins->inst_ms_word;
596 temp->dreg = MONO_LVREG_MS (dreg);
598 dreg = mono_alloc_ireg (cfg);
600 MONO_INST_NEW (cfg, temp, OP_ICONST);
601 temp->inst_c0 = ins->inst_imm;
605 mono_bblock_insert_before_ins (bb, ins, temp);
608 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
609 ins->opcode = opcode2;
611 if (ins->opcode == OP_LOCALLOC)
616 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
620 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
622 if (vreg >= cfg->vreg_to_inst_len) {
623 MonoInst **tmp = cfg->vreg_to_inst;
624 int size = cfg->vreg_to_inst_len;
626 while (vreg >= cfg->vreg_to_inst_len)
627 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
628 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
630 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
632 cfg->vreg_to_inst [vreg] = inst;
635 #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)))
636 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
639 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
642 int num = cfg->num_varinfo;
645 type = mini_get_underlying_type (type);
647 if ((num + 1) >= cfg->varinfo_count) {
648 int orig_count = cfg->varinfo_count;
649 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
650 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
651 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
652 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
655 cfg->stat_allocate_var++;
657 MONO_INST_NEW (cfg, inst, opcode);
659 inst->inst_vtype = type;
660 inst->klass = mono_class_from_mono_type (type);
661 type_to_eval_stack_type (cfg, type, inst);
662 /* if set to 1 the variable is native */
663 inst->backend.is_pinvoke = 0;
666 if (mono_class_has_failure (inst->klass))
667 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
669 if (cfg->compute_gc_maps) {
671 mono_mark_vreg_as_mp (cfg, vreg);
673 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
674 inst->flags |= MONO_INST_GC_TRACK;
675 mono_mark_vreg_as_ref (cfg, vreg);
680 cfg->varinfo [num] = inst;
682 MONO_INIT_VARINFO (&cfg->vars [num], num);
683 MONO_VARINFO (cfg, num)->vreg = vreg;
686 set_vreg_to_inst (cfg, vreg, inst);
688 #if SIZEOF_REGISTER == 4
689 if (mono_arch_is_soft_float ()) {
690 regpair = mono_type_is_long (type) || mono_type_is_float (type);
692 regpair = mono_type_is_long (type);
702 * These two cannot be allocated using create_var_for_vreg since that would
703 * put it into the cfg->varinfo array, confusing many parts of the JIT.
707 * Set flags to VOLATILE so SSA skips it.
710 if (cfg->verbose_level >= 4) {
711 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
714 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
715 if (mono_type_is_float (type))
716 inst->flags = MONO_INST_VOLATILE;
719 /* Allocate a dummy MonoInst for the first vreg */
720 MONO_INST_NEW (cfg, tree, OP_LOCAL);
721 tree->dreg = MONO_LVREG_LS (inst->dreg);
722 if (cfg->opt & MONO_OPT_SSA)
723 tree->flags = MONO_INST_VOLATILE;
725 tree->type = STACK_I4;
726 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
727 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
729 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
731 /* Allocate a dummy MonoInst for the second vreg */
732 MONO_INST_NEW (cfg, tree, OP_LOCAL);
733 tree->dreg = MONO_LVREG_MS (inst->dreg);
734 if (cfg->opt & MONO_OPT_SSA)
735 tree->flags = MONO_INST_VOLATILE;
737 tree->type = STACK_I4;
738 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
739 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
741 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
745 if (cfg->verbose_level > 2)
746 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
751 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
754 type = mini_get_underlying_type (type);
756 if (mono_type_is_long (type))
757 dreg = mono_alloc_dreg (cfg, STACK_I8);
758 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
759 dreg = mono_alloc_dreg (cfg, STACK_R8);
761 /* All the others are unified */
762 dreg = mono_alloc_preg (cfg);
764 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
768 mini_get_int_to_float_spill_area (MonoCompile *cfg)
771 if (!cfg->iconv_raw_var) {
772 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
773 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
775 return cfg->iconv_raw_var;
782 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
784 if (vreg >= cfg->vreg_is_ref_len) {
785 gboolean *tmp = cfg->vreg_is_ref;
786 int size = cfg->vreg_is_ref_len;
788 while (vreg >= cfg->vreg_is_ref_len)
789 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
790 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
792 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
794 cfg->vreg_is_ref [vreg] = TRUE;
798 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
800 if (vreg >= cfg->vreg_is_mp_len) {
801 gboolean *tmp = cfg->vreg_is_mp;
802 int size = cfg->vreg_is_mp_len;
804 while (vreg >= cfg->vreg_is_mp_len)
805 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
806 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
808 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
810 cfg->vreg_is_mp [vreg] = TRUE;
814 type_from_stack_type (MonoInst *ins)
817 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
818 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
819 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
820 case STACK_R8: return &mono_defaults.double_class->byval_arg;
823 * this if used to be commented without any specific reason, but
824 * it breaks #80235 when commented
827 return &ins->klass->this_arg;
829 return &mono_defaults.object_class->this_arg;
831 /* ins->klass may not be set for ldnull.
832 * Also, if we have a boxed valuetype, we want an object lass,
833 * not the valuetype class
835 if (ins->klass && !ins->klass->valuetype)
836 return &ins->klass->byval_arg;
837 return &mono_defaults.object_class->byval_arg;
838 case STACK_VTYPE: return &ins->klass->byval_arg;
840 g_error ("stack type %d to montype not handled\n", ins->type);
846 mono_type_from_stack_type (MonoInst *ins)
848 return type_from_stack_type (ins);
852 * mono_add_ins_to_end:
854 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
857 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
862 MONO_ADD_INS (bb, inst);
866 switch (bb->last_ins->opcode) {
880 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
883 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
884 /* Need to insert the ins before the compare */
885 if (bb->code == bb->last_ins) {
886 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
890 if (bb->code->next == bb->last_ins) {
891 /* Only two instructions */
892 opcode = bb->code->opcode;
894 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)) {
896 mono_bblock_insert_before_ins (bb, bb->code, inst);
898 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
901 opcode = bb->last_ins->prev->opcode;
903 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)) {
905 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
907 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
912 MONO_ADD_INS (bb, inst);
918 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
920 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
921 MonoJumpInfoBBTable *table;
923 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
925 table->table_size = num_blocks;
927 ji->ip.label = label;
928 ji->type = MONO_PATCH_INFO_SWITCH;
929 ji->data.table = table;
930 ji->next = cfg->patch_info;
931 cfg->patch_info = ji;
934 static MonoMethodSignature *
935 mono_get_array_new_va_signature (int arity)
937 static GHashTable *sighash;
938 MonoMethodSignature *res;
943 sighash = g_hash_table_new (NULL, NULL);
945 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
950 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
953 if (ARCH_VARARG_ICALLS)
954 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
955 res->call_convention = MONO_CALL_VARARG;
958 res->call_convention = MONO_CALL_C;
961 res->params [0] = &mono_defaults.int_class->byval_arg;
962 for (i = 0; i < arity; i++)
963 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
965 res->ret = &mono_defaults.object_class->byval_arg;
967 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
974 mono_get_array_new_va_icall (int rank)
976 MonoMethodSignature *esig;
977 char icall_name [256];
979 MonoJitICallInfo *info;
981 /* Need to register the icall so it gets an icall wrapper */
982 sprintf (icall_name, "ves_array_new_va_%d", rank);
985 info = mono_find_jit_icall_by_name (icall_name);
987 esig = mono_get_array_new_va_signature (rank);
988 name = g_strdup (icall_name);
989 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
997 mini_class_is_system_array (MonoClass *klass)
999 if (klass->parent == mono_defaults.array_class)
1006 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1008 MonoAssembly *assembly = method->klass->image->assembly;
1009 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1011 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1013 return mono_assembly_has_skip_verification (assembly);
1017 * mini_method_verify:
1019 * Verify the method using the verfier.
1021 * Returns true if the method is invalid.
1024 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1027 gboolean is_fulltrust;
1029 if (method->verification_success)
1032 if (!mono_verifier_is_enabled_for_method (method))
1035 /*skip verification implies the assembly must be */
1036 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1038 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1041 for (tmp = res; tmp; tmp = tmp->next) {
1042 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1043 if (info->info.status == MONO_VERIFY_ERROR) {
1045 char *method_name = mono_method_full_name (method, TRUE);
1046 cfg->exception_type = info->exception_type;
1047 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1048 g_free (method_name);
1050 mono_free_verify_list (res);
1053 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1055 char *method_name = mono_method_full_name (method, TRUE);
1056 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1058 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1059 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1060 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1061 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1062 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1063 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", "%s", msg);
1064 if (!mono_error_ok (&cfg->error)) {
1065 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1068 cfg->exception_type = info->exception_type;
1069 cfg->exception_message = msg;
1071 g_free (method_name);
1073 mono_free_verify_list (res);
1077 mono_free_verify_list (res);
1079 method->verification_success = 1;
1083 /*Returns true if something went wrong*/
1085 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1087 MonoMethod *method_definition = method;
1088 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1090 while (method_definition->is_inflated) {
1091 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1092 method_definition = imethod->declaring;
1095 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1099 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1101 if (!domain_jit_info (domain)->dynamic_code_hash)
1102 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1103 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1106 static MonoJitDynamicMethodInfo*
1107 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1109 MonoJitDynamicMethodInfo *res;
1111 if (domain_jit_info (domain)->dynamic_code_hash)
1112 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1120 GList *active, *inactive;
1125 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1127 MonoMethodVar *v1 = (MonoMethodVar*)a;
1128 MonoMethodVar *v2 = (MonoMethodVar*)b;
1132 else if (v1->interval->range && v2->interval->range)
1133 return v1->interval->range->from - v2->interval->range->from;
1134 else if (v1->interval->range)
1141 #define LSCAN_DEBUG(a) do { a; } while (0)
1143 #define LSCAN_DEBUG(a)
1147 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1149 int i, slot, offset, size;
1154 GList *vars = NULL, *l, *unhandled;
1155 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1158 gboolean reuse_slot;
1160 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1162 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1163 vtype_stack_slots = NULL;
1166 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1167 for (i = 0; i < cfg->num_varinfo; ++i)
1170 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1171 inst = cfg->varinfo [i];
1172 vmv = MONO_VARINFO (cfg, i);
1174 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1177 vars = g_list_prepend (vars, vmv);
1180 vars = g_list_sort (vars, compare_by_interval_start_pos_func);
1185 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1186 MonoMethodVar *current = unhandled->data;
1188 if (current->interval->range) {
1189 g_assert (current->interval->range->from >= i);
1190 i = current->interval->range->from;
1197 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1198 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1201 inst = cfg->varinfo [vmv->idx];
1203 t = mono_type_get_underlying_type (inst->inst_vtype);
1204 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1207 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1208 * pinvoke wrappers when they call functions returning structures */
1209 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1210 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1215 size = mini_type_stack_size (t, &ialign);
1218 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1223 if (cfg->disable_reuse_stack_slots)
1226 t = mini_get_underlying_type (t);
1228 case MONO_TYPE_GENERICINST:
1229 if (!mono_type_generic_inst_is_valuetype (t)) {
1230 slot_info = &scalar_stack_slots [t->type];
1234 case MONO_TYPE_VALUETYPE:
1235 if (!vtype_stack_slots)
1236 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1237 for (i = 0; i < nvtypes; ++i)
1238 if (t->data.klass == vtype_stack_slots [i].vtype)
1241 slot_info = &vtype_stack_slots [i];
1243 g_assert (nvtypes < 256);
1244 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1245 slot_info = &vtype_stack_slots [nvtypes];
1248 if (cfg->disable_reuse_ref_stack_slots)
1255 #if SIZEOF_VOID_P == 4
1260 if (cfg->disable_ref_noref_stack_slot_share) {
1261 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1266 case MONO_TYPE_CLASS:
1267 case MONO_TYPE_OBJECT:
1268 case MONO_TYPE_ARRAY:
1269 case MONO_TYPE_SZARRAY:
1270 case MONO_TYPE_STRING:
1271 /* Share non-float stack slots of the same size */
1272 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1273 if (cfg->disable_reuse_ref_stack_slots)
1278 slot_info = &scalar_stack_slots [t->type];
1282 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1286 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1288 if (!current->interval->range) {
1289 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1293 inst->flags |= MONO_INST_IS_DEAD;
1298 pos = current->interval->range->from;
1300 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1301 if (current->interval->range)
1302 LSCAN_DEBUG (mono_linterval_print (current->interval));
1303 LSCAN_DEBUG (printf ("\n"));
1305 /* Check for intervals in active which expired or inactive */
1307 /* FIXME: Optimize this */
1310 for (l = slot_info->active; l != NULL; l = l->next) {
1311 MonoMethodVar *v = (MonoMethodVar*)l->data;
1313 if (v->interval->last_range->to < pos) {
1314 slot_info->active = g_list_delete_link (slot_info->active, l);
1315 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1316 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1320 else if (!mono_linterval_covers (v->interval, pos)) {
1321 slot_info->inactive = g_list_append (slot_info->inactive, v);
1322 slot_info->active = g_list_delete_link (slot_info->active, l);
1323 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1330 /* Check for intervals in inactive which expired or active */
1332 /* FIXME: Optimize this */
1335 for (l = slot_info->inactive; l != NULL; l = l->next) {
1336 MonoMethodVar *v = (MonoMethodVar*)l->data;
1338 if (v->interval->last_range->to < pos) {
1339 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1340 // FIXME: Enabling this seems to cause impossible to debug crashes
1341 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1342 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1346 else if (mono_linterval_covers (v->interval, pos)) {
1347 slot_info->active = g_list_append (slot_info->active, v);
1348 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1349 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1357 * This also handles the case when the variable is used in an
1358 * exception region, as liveness info is not computed there.
1361 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1364 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1365 if (slot_info->slots) {
1366 slot = GPOINTER_TO_INT (slot_info->slots->data);
1368 slot_info->slots = slot_info->slots->next;
1371 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1373 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1379 static int count = 0;
1382 if (count == atoi (g_getenv ("COUNT3")))
1383 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1384 if (count > atoi (g_getenv ("COUNT3")))
1387 mono_print_ins (inst);
1392 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1394 if (inst->flags & MONO_INST_LMF) {
1395 size = sizeof (MonoLMF);
1396 align = sizeof (mgreg_t);
1403 if (slot == 0xffffff) {
1405 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1406 * efficient copying (and to work around the fact that OP_MEMCPY
1407 * and OP_MEMSET ignores alignment).
1409 if (MONO_TYPE_ISSTRUCT (t)) {
1410 align = MAX (align, sizeof (gpointer));
1411 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1416 offset += align - 1;
1417 offset &= ~(align - 1);
1421 offset += align - 1;
1422 offset &= ~(align - 1);
1427 if (*stack_align == 0)
1428 *stack_align = align;
1431 offsets [vmv->idx] = slot;
1434 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1435 if (scalar_stack_slots [i].active)
1436 g_list_free (scalar_stack_slots [i].active);
1438 for (i = 0; i < nvtypes; ++i) {
1439 if (vtype_stack_slots [i].active)
1440 g_list_free (vtype_stack_slots [i].active);
1443 cfg->stat_locals_stack_size += offset;
1445 *stack_size = offset;
1450 * mono_allocate_stack_slots:
1452 * Allocate stack slots for all non register allocated variables using a
1453 * linear scan algorithm.
1454 * Returns: an array of stack offsets.
1455 * STACK_SIZE is set to the amount of stack space needed.
1456 * STACK_ALIGN is set to the alignment needed by the locals area.
1459 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1461 int i, slot, offset, size;
1466 GList *vars = NULL, *l;
1467 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1470 gboolean reuse_slot;
1472 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1473 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1475 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1476 vtype_stack_slots = NULL;
1479 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1480 for (i = 0; i < cfg->num_varinfo; ++i)
1483 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1484 inst = cfg->varinfo [i];
1485 vmv = MONO_VARINFO (cfg, i);
1487 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1490 vars = g_list_prepend (vars, vmv);
1493 vars = mono_varlist_sort (cfg, vars, 0);
1495 *stack_align = sizeof(mgreg_t);
1496 for (l = vars; l; l = l->next) {
1497 vmv = (MonoMethodVar *)l->data;
1498 inst = cfg->varinfo [vmv->idx];
1500 t = mono_type_get_underlying_type (inst->inst_vtype);
1501 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1504 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1505 * pinvoke wrappers when they call functions returning structures */
1506 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1507 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1511 size = mini_type_stack_size (t, &ialign);
1514 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1515 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1517 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1522 if (cfg->disable_reuse_stack_slots)
1525 t = mini_get_underlying_type (t);
1527 case MONO_TYPE_GENERICINST:
1528 if (!mono_type_generic_inst_is_valuetype (t)) {
1529 slot_info = &scalar_stack_slots [t->type];
1533 case MONO_TYPE_VALUETYPE:
1534 if (!vtype_stack_slots)
1535 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1536 for (i = 0; i < nvtypes; ++i)
1537 if (t->data.klass == vtype_stack_slots [i].vtype)
1540 slot_info = &vtype_stack_slots [i];
1542 g_assert (nvtypes < 256);
1543 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1544 slot_info = &vtype_stack_slots [nvtypes];
1547 if (cfg->disable_reuse_ref_stack_slots)
1554 #if SIZEOF_VOID_P == 4
1559 if (cfg->disable_ref_noref_stack_slot_share) {
1560 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1565 case MONO_TYPE_CLASS:
1566 case MONO_TYPE_OBJECT:
1567 case MONO_TYPE_ARRAY:
1568 case MONO_TYPE_SZARRAY:
1569 case MONO_TYPE_STRING:
1570 /* Share non-float stack slots of the same size */
1571 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1572 if (cfg->disable_reuse_ref_stack_slots)
1576 case MONO_TYPE_MVAR:
1577 slot_info = &scalar_stack_slots [t->type];
1580 slot_info = &scalar_stack_slots [t->type];
1585 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1586 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1588 /* expire old intervals in active */
1589 while (slot_info->active) {
1590 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1592 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1595 //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);
1597 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1598 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1602 * This also handles the case when the variable is used in an
1603 * exception region, as liveness info is not computed there.
1606 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1609 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1610 if (slot_info->slots) {
1611 slot = GPOINTER_TO_INT (slot_info->slots->data);
1613 slot_info->slots = slot_info->slots->next;
1616 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1621 static int count = 0;
1625 if (count == atoi (g_getenv ("COUNT")))
1626 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1627 if (count > atoi (g_getenv ("COUNT")))
1630 mono_print_ins (inst);
1635 if (inst->flags & MONO_INST_LMF) {
1637 * This variable represents a MonoLMF structure, which has no corresponding
1638 * CLR type, so hard-code its size/alignment.
1640 size = sizeof (MonoLMF);
1641 align = sizeof (mgreg_t);
1648 if (slot == 0xffffff) {
1650 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1651 * efficient copying (and to work around the fact that OP_MEMCPY
1652 * and OP_MEMSET ignores alignment).
1654 if (MONO_TYPE_ISSTRUCT (t)) {
1655 align = MAX (align, sizeof (gpointer));
1656 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1658 * Align the size too so the code generated for passing vtypes in
1659 * registers doesn't overwrite random locals.
1661 size = (size + (align - 1)) & ~(align -1);
1666 offset += align - 1;
1667 offset &= ~(align - 1);
1671 offset += align - 1;
1672 offset &= ~(align - 1);
1677 *stack_align = MAX (*stack_align, align);
1680 offsets [vmv->idx] = slot;
1683 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1684 if (scalar_stack_slots [i].active)
1685 g_list_free (scalar_stack_slots [i].active);
1687 for (i = 0; i < nvtypes; ++i) {
1688 if (vtype_stack_slots [i].active)
1689 g_list_free (vtype_stack_slots [i].active);
1692 cfg->stat_locals_stack_size += offset;
1694 *stack_size = offset;
1698 #define EMUL_HIT_SHIFT 3
1699 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1700 /* small hit bitmap cache */
1701 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1702 static short emul_opcode_num = 0;
1703 static short emul_opcode_alloced = 0;
1704 static short *emul_opcode_opcodes;
1705 static MonoJitICallInfo **emul_opcode_map;
1708 mono_find_jit_opcode_emulation (int opcode)
1710 g_assert (opcode >= 0 && opcode <= OP_LAST);
1711 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1713 for (i = 0; i < emul_opcode_num; ++i) {
1714 if (emul_opcode_opcodes [i] == opcode)
1715 return emul_opcode_map [i];
1722 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1724 MonoJitICallInfo *info;
1725 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1727 g_assert (!sig->hasthis);
1728 g_assert (sig->param_count < 3);
1730 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1731 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1733 if (emul_opcode_num >= emul_opcode_alloced) {
1734 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1735 emul_opcode_alloced += incr;
1736 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1737 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1739 emul_opcode_map [emul_opcode_num] = info;
1740 emul_opcode_opcodes [emul_opcode_num] = opcode;
1742 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1746 print_dfn (MonoCompile *cfg)
1754 char *method_name = mono_method_full_name (cfg->method, TRUE);
1755 g_print ("IR code for method %s\n", method_name);
1756 g_free (method_name);
1759 for (i = 0; i < cfg->num_bblocks; ++i) {
1760 bb = cfg->bblocks [i];
1761 /*if (bb->cil_code) {
1762 char* code1, *code2;
1763 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1764 if (bb->last_ins->cil_code)
1765 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1767 code2 = g_strdup ("");
1769 code1 [strlen (code1) - 1] = 0;
1770 code = g_strdup_printf ("%s -> %s", code1, code2);
1774 code = g_strdup ("\n");
1775 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1776 MONO_BB_FOR_EACH_INS (bb, c) {
1777 mono_print_ins_index (-1, c);
1780 g_print ("\tprev:");
1781 for (j = 0; j < bb->in_count; ++j) {
1782 g_print (" BB%d", bb->in_bb [j]->block_num);
1784 g_print ("\t\tsucc:");
1785 for (j = 0; j < bb->out_count; ++j) {
1786 g_print (" BB%d", bb->out_bb [j]->block_num);
1788 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1791 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1794 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1796 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1804 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1806 MONO_ADD_INS (bb, inst);
1810 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1814 bb->code = ins_to_insert;
1816 /* Link with next */
1817 ins_to_insert->next = ins;
1819 ins->prev = ins_to_insert;
1821 if (bb->last_ins == NULL)
1822 bb->last_ins = ins_to_insert;
1824 /* Link with next */
1825 ins_to_insert->next = ins->next;
1827 ins->next->prev = ins_to_insert;
1829 /* Link with previous */
1830 ins->next = ins_to_insert;
1831 ins_to_insert->prev = ins;
1833 if (bb->last_ins == ins)
1834 bb->last_ins = ins_to_insert;
1839 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1844 ins->prev = ins_to_insert;
1845 bb->code = ins_to_insert;
1846 ins_to_insert->next = ins;
1847 if (bb->last_ins == NULL)
1848 bb->last_ins = ins_to_insert;
1850 /* Link with previous */
1852 ins->prev->next = ins_to_insert;
1853 ins_to_insert->prev = ins->prev;
1855 /* Link with next */
1856 ins->prev = ins_to_insert;
1857 ins_to_insert->next = ins;
1859 if (bb->code == ins)
1860 bb->code = ins_to_insert;
1865 * mono_verify_bblock:
1867 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1870 mono_verify_bblock (MonoBasicBlock *bb)
1872 MonoInst *ins, *prev;
1875 for (ins = bb->code; ins; ins = ins->next) {
1876 g_assert (ins->prev == prev);
1880 g_assert (!bb->last_ins->next);
1886 * Perform consistency checks on the JIT data structures and the IR
1889 mono_verify_cfg (MonoCompile *cfg)
1893 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
1894 mono_verify_bblock (bb);
1897 // This will free many fields in cfg to save
1898 // memory. Note that this must be safe to call
1899 // multiple times. It must be idempotent.
1901 mono_empty_compile (MonoCompile *cfg)
1903 mono_free_loop_info (cfg);
1905 // These live in the mempool, and so must be freed
1907 for (GSList *l = cfg->headers_to_free; l; l = l->next) {
1908 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
1910 cfg->headers_to_free = NULL;
1913 //mono_mempool_stats (cfg->mempool);
1914 mono_mempool_destroy (cfg->mempool);
1915 cfg->mempool = NULL;
1918 g_free (cfg->varinfo);
1919 cfg->varinfo = NULL;
1925 mono_regstate_free (cfg->rs);
1931 mono_destroy_compile (MonoCompile *cfg)
1933 mono_empty_compile (cfg);
1936 mono_metadata_free_mh (cfg->header);
1939 g_hash_table_destroy (cfg->spvars);
1941 g_hash_table_destroy (cfg->exvars);
1943 g_list_free (cfg->ldstr_list);
1945 if (cfg->token_info_hash)
1946 g_hash_table_destroy (cfg->token_info_hash);
1948 if (cfg->abs_patches)
1949 g_hash_table_destroy (cfg->abs_patches);
1951 mono_debug_free_method (cfg);
1953 g_free (cfg->varinfo);
1955 g_free (cfg->exception_message);
1960 mono_create_tls_get_offset (MonoCompile *cfg, int offset)
1964 if (!cfg->backend->have_tls_get)
1970 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
1971 ins->dreg = mono_alloc_preg (cfg);
1972 ins->inst_offset = offset;
1977 mini_tls_get_supported (MonoCompile *cfg, MonoTlsKey key)
1979 if (!cfg->backend->have_tls_get)
1982 if (cfg->compile_aot)
1983 return cfg->backend->have_tls_get_reg;
1985 return mini_get_tls_offset (key) != -1;
1989 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
1991 if (!cfg->backend->have_tls_get)
1994 #ifdef HAVE_KW_THREAD
1996 * MONO_THREAD_VAR_OFFSET definitions don't work when loading mono as a
1997 * dynamic library. This means that we need to be conservative and don't
1998 * aot code that contains these tls chunks.
2000 * FIXME Remove HAVE_KW_THREAD altogether and use only pthread since it
2001 * simplifies the code alot.
2004 cfg->disable_aot = TRUE;
2007 * TLS offsets might be different at AOT time, so load them from a GOT slot and
2008 * use a different opcode.
2010 if (cfg->compile_aot) {
2011 if (cfg->backend->have_tls_get_reg) {
2014 EMIT_NEW_TLS_OFFSETCONST (cfg, c, key);
2015 MONO_INST_NEW (cfg, ins, OP_TLS_GET_REG);
2016 ins->dreg = mono_alloc_preg (cfg);
2017 ins->sreg1 = c->dreg;
2024 return mono_create_tls_get_offset (cfg, mini_get_tls_offset (key));
2028 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2030 return mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
2034 mono_get_domain_intrinsic (MonoCompile* cfg)
2036 return mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
2040 mono_get_thread_intrinsic (MonoCompile* cfg)
2042 return mono_create_tls_get (cfg, TLS_KEY_THREAD);
2046 mono_get_lmf_intrinsic (MonoCompile* cfg)
2048 return mono_create_tls_get (cfg, TLS_KEY_LMF);
2052 mono_get_lmf_addr_intrinsic (MonoCompile* cfg)
2054 return mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
2058 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2060 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2064 ji->data.target = target;
2065 ji->next = cfg->patch_info;
2067 cfg->patch_info = ji;
2071 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
2073 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2077 ji->relocation = relocation;
2078 ji->data.target = target;
2079 ji->next = cfg->patch_info;
2081 cfg->patch_info = ji;
2085 mono_remove_patch_info (MonoCompile *cfg, int ip)
2087 MonoJumpInfo **ji = &cfg->patch_info;
2090 if ((*ji)->ip.i == ip)
2093 ji = &((*ji)->next);
2098 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2100 ins->inst_offset = native_offset;
2101 g_ptr_array_add (cfg->seq_points, ins);
2103 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2104 bb->last_seq_point = ins;
2109 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2111 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2114 g_assert (offset == 0);
2116 entry->is_reg = is_reg;
2118 entry->offset = offset;
2122 if (var == cfg->args [0])
2123 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2124 else if (var == cfg->rgctx_var)
2125 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2129 mono_compile_create_vars (MonoCompile *cfg)
2131 MonoMethodSignature *sig;
2132 MonoMethodHeader *header;
2135 header = cfg->header;
2137 sig = mono_method_signature (cfg->method);
2139 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2140 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2141 /* Inhibit optimizations */
2142 cfg->ret->flags |= MONO_INST_VOLATILE;
2144 if (cfg->verbose_level > 2)
2145 g_print ("creating vars\n");
2147 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2150 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2152 for (i = 0; i < sig->param_count; ++i) {
2153 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2156 if (cfg->verbose_level > 2) {
2158 printf ("\treturn : ");
2159 mono_print_ins (cfg->ret);
2163 printf ("\tthis: ");
2164 mono_print_ins (cfg->args [0]);
2167 for (i = 0; i < sig->param_count; ++i) {
2168 printf ("\targ [%d]: ", i);
2169 mono_print_ins (cfg->args [i + sig->hasthis]);
2173 cfg->locals_start = cfg->num_varinfo;
2174 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2176 if (cfg->verbose_level > 2)
2177 g_print ("creating locals\n");
2179 for (i = 0; i < header->num_locals; ++i)
2180 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2182 if (cfg->verbose_level > 2)
2183 g_print ("locals done\n");
2186 if (COMPILE_LLVM (cfg))
2187 mono_llvm_create_vars (cfg);
2189 mono_arch_create_vars (cfg);
2191 mono_arch_create_vars (cfg);
2194 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2195 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2196 lmf_var->flags |= MONO_INST_VOLATILE;
2197 lmf_var->flags |= MONO_INST_LMF;
2198 cfg->lmf_var = lmf_var;
2203 mono_print_code (MonoCompile *cfg, const char* msg)
2207 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2208 mono_print_bb (bb, msg);
2212 mono_postprocess_patches (MonoCompile *cfg)
2214 MonoJumpInfo *patch_info;
2217 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2218 switch (patch_info->type) {
2219 case MONO_PATCH_INFO_ABS: {
2220 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2223 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2227 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2228 /* for these array methods we currently register the same function pointer
2229 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2230 * will return the incorrect one depending on the order they are registered.
2231 * See tests/test-arr.cs
2233 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2234 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2235 patch_info->data.name = info->name;
2239 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2240 if (cfg->abs_patches) {
2241 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2243 patch_info->type = abs_ji->type;
2244 patch_info->data.target = abs_ji->data.target;
2251 case MONO_PATCH_INFO_SWITCH: {
2253 #if defined(__native_client__) && defined(__native_client_codegen__)
2254 /* This memory will leak. */
2255 /* TODO: can we free this when */
2256 /* making the final jump table? */
2257 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2259 if (cfg->method->dynamic) {
2260 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2262 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2266 for (i = 0; i < patch_info->data.table->table_size; i++) {
2267 /* Might be NULL if the switch is eliminated */
2268 if (patch_info->data.table->table [i]) {
2269 g_assert (patch_info->data.table->table [i]->native_offset);
2270 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2275 patch_info->data.table->table = (MonoBasicBlock**)table;
2278 case MONO_PATCH_INFO_METHOD_JUMP: {
2279 MonoJumpList *jlist;
2280 MonoDomain *domain = cfg->domain;
2281 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2283 mono_domain_lock (domain);
2284 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2286 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2287 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2289 jlist->list = g_slist_prepend (jlist->list, ip);
2290 mono_domain_unlock (domain);
2301 mono_codegen (MonoCompile *cfg)
2304 int max_epilog_size;
2306 MonoDomain *code_domain;
2307 guint unwindlen = 0;
2309 if (mono_using_xdebug)
2311 * Recent gdb versions have trouble processing symbol files containing
2312 * overlapping address ranges, so allocate all code from the code manager
2313 * of the root domain. (#666152).
2315 code_domain = mono_get_root_domain ();
2317 code_domain = cfg->domain;
2319 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2320 cfg->spill_count = 0;
2321 /* we reuse dfn here */
2322 /* bb->dfn = bb_count++; */
2324 mono_arch_lowering_pass (cfg, bb);
2326 if (cfg->opt & MONO_OPT_PEEPHOLE)
2327 mono_arch_peephole_pass_1 (cfg, bb);
2329 mono_local_regalloc (cfg, bb);
2331 if (cfg->opt & MONO_OPT_PEEPHOLE)
2332 mono_arch_peephole_pass_2 (cfg, bb);
2334 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2335 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2338 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2339 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2341 code = mono_arch_emit_prolog (cfg);
2343 cfg->code_len = code - cfg->native_code;
2344 cfg->prolog_end = cfg->code_len;
2345 cfg->cfa_reg = cfg->cur_cfa_reg;
2346 cfg->cfa_offset = cfg->cur_cfa_offset;
2348 mono_debug_open_method (cfg);
2350 /* emit code all basic blocks */
2351 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2352 bb->native_offset = cfg->code_len;
2353 bb->real_native_offset = cfg->code_len;
2354 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2355 mono_arch_output_basic_block (cfg, bb);
2356 bb->native_length = cfg->code_len - bb->native_offset;
2358 if (bb == cfg->bb_exit) {
2359 cfg->epilog_begin = cfg->code_len;
2360 mono_arch_emit_epilog (cfg);
2361 cfg->epilog_end = cfg->code_len;
2365 mono_arch_emit_exceptions (cfg);
2367 max_epilog_size = 0;
2369 /* we always allocate code in cfg->domain->code_mp to increase locality */
2370 cfg->code_size = cfg->code_len + max_epilog_size;
2372 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2374 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2375 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2378 if (cfg->method->dynamic) {
2379 /* Allocate the code into a separate memory pool so it can be freed */
2380 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2381 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2382 mono_domain_lock (cfg->domain);
2383 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2384 mono_domain_unlock (cfg->domain);
2386 if (mono_using_xdebug)
2387 /* See the comment for cfg->code_domain */
2388 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2390 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2392 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2395 if (cfg->thunk_area) {
2396 cfg->thunks_offset = cfg->code_size + unwindlen;
2397 cfg->thunks = code + cfg->thunks_offset;
2398 memset (cfg->thunks, 0, cfg->thunk_area);
2402 memcpy (code, cfg->native_code, cfg->code_len);
2403 g_free (cfg->native_code);
2404 cfg->native_code = code;
2405 code = cfg->native_code + cfg->code_len;
2407 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2408 mono_postprocess_patches (cfg);
2410 #ifdef VALGRIND_JIT_REGISTER_MAP
2411 if (valgrind_register){
2412 char* nm = mono_method_full_name (cfg->method, TRUE);
2413 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2418 if (cfg->verbose_level > 0) {
2419 char* nm = mono_method_get_full_name (cfg->method);
2420 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2422 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2427 gboolean is_generic = FALSE;
2429 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2430 mono_class_is_gtd (cfg->method->klass) || mono_class_is_ginst (cfg->method->klass)) {
2435 g_assert (is_generic);
2438 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2439 mono_arch_save_unwind_info (cfg);
2442 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2447 for (ji = cfg->patch_info; ji; ji = ji->next) {
2448 if (cfg->compile_aot) {
2450 case MONO_PATCH_INFO_BB:
2451 case MONO_PATCH_INFO_LABEL:
2454 /* No need to patch these */
2459 if (ji->type == MONO_PATCH_INFO_NONE)
2462 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2463 if (!mono_error_ok (&cfg->error)) {
2464 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2467 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2471 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors, &cfg->error);
2472 if (!is_ok (&cfg->error)) {
2473 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2478 if (cfg->method->dynamic) {
2479 if (mono_using_xdebug)
2480 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2482 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2484 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2486 #if defined(__native_client_codegen__) && defined(__native_client__)
2487 cfg->native_code = code_dest;
2489 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2491 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2493 mono_debug_close_method (cfg);
2495 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2496 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2501 compute_reachable (MonoBasicBlock *bb)
2505 if (!(bb->flags & BB_VISITED)) {
2506 bb->flags |= BB_VISITED;
2507 for (i = 0; i < bb->out_count; ++i)
2508 compute_reachable (bb->out_bb [i]);
2512 static void mono_bb_ordering (MonoCompile *cfg)
2515 /* Depth-first ordering on basic blocks */
2516 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2518 cfg->max_block_num = cfg->num_bblocks;
2520 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2521 if (cfg->num_bblocks != dfn + 1) {
2524 cfg->num_bblocks = dfn + 1;
2526 /* remove unreachable code, because the code in them may be
2527 * inconsistent (access to dead variables for example) */
2528 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2529 bb->flags &= ~BB_VISITED;
2530 compute_reachable (cfg->bb_entry);
2531 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2532 if (bb->flags & BB_EXCEPTION_HANDLER)
2533 compute_reachable (bb);
2534 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2535 if (!(bb->flags & BB_VISITED)) {
2536 if (cfg->verbose_level > 1)
2537 g_print ("found unreachable code in BB%d\n", bb->block_num);
2538 bb->code = bb->last_ins = NULL;
2539 while (bb->out_count)
2540 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2543 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2544 bb->flags &= ~BB_VISITED;
2549 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2552 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2553 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2555 MONO_INST_NEW (cfg, ins, OP_BR);
2556 MONO_ADD_INS (bb, ins);
2557 ins->inst_target_bb = bb->next_bb;
2563 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2566 MonoMethodHeader *header;
2568 MonoJitInfoFlags flags = JIT_INFO_NONE;
2569 int num_clauses, num_holes = 0;
2570 guint32 stack_size = 0;
2572 g_assert (method_to_compile == cfg->method);
2573 header = cfg->header;
2576 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2578 if (cfg->arch_eh_jit_info) {
2579 MonoJitArgumentInfo *arg_info;
2580 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2583 * This cannot be computed during stack walking, as
2584 * mono_arch_get_argument_info () is not signal safe.
2586 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2587 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2590 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2593 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2594 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2596 if (cfg->thunk_area)
2597 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2599 if (cfg->try_block_holes) {
2600 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2601 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2602 MonoExceptionClause *ec = hole->clause;
2603 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2604 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2605 g_assert (clause_last_bb);
2607 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2608 if (clause_last_bb->native_offset != hole_end)
2612 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2613 if (G_UNLIKELY (cfg->verbose_level >= 4))
2614 printf ("Number of try block holes %d\n", num_holes);
2617 if (COMPILE_LLVM (cfg))
2618 num_clauses = cfg->llvm_ex_info_len;
2620 num_clauses = header->num_clauses;
2622 if (cfg->method->dynamic)
2623 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2625 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2626 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2627 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2629 if (COMPILE_LLVM (cfg))
2630 jinfo->from_llvm = TRUE;
2634 MonoGenericJitInfo *gi;
2635 GSList *loclist = NULL;
2637 gi = mono_jit_info_get_generic_jit_info (jinfo);
2640 if (cfg->method->dynamic)
2641 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2643 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2644 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2646 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2647 mini_method_get_context (method_to_compile)->method_inst ||
2648 method_to_compile->klass->valuetype) {
2649 g_assert (cfg->rgctx_var);
2654 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2655 mini_method_get_context (method_to_compile)->method_inst ||
2656 method_to_compile->klass->valuetype) {
2657 inst = cfg->rgctx_var;
2658 if (!COMPILE_LLVM (cfg))
2659 g_assert (inst->opcode == OP_REGOFFSET);
2660 loclist = cfg->rgctx_loclist;
2662 inst = cfg->args [0];
2663 loclist = cfg->this_loclist;
2667 /* Needed to handle async exceptions */
2671 gi->nlocs = g_slist_length (loclist);
2672 if (cfg->method->dynamic)
2673 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2675 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2677 for (l = loclist; l; l = l->next) {
2678 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2683 if (COMPILE_LLVM (cfg)) {
2684 g_assert (cfg->llvm_this_reg != -1);
2685 gi->this_in_reg = 0;
2686 gi->this_reg = cfg->llvm_this_reg;
2687 gi->this_offset = cfg->llvm_this_offset;
2688 } else if (inst->opcode == OP_REGVAR) {
2689 gi->this_in_reg = 1;
2690 gi->this_reg = inst->dreg;
2692 g_assert (inst->opcode == OP_REGOFFSET);
2694 g_assert (inst->inst_basereg == X86_EBP);
2695 #elif defined(TARGET_AMD64)
2696 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2698 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2700 gi->this_in_reg = 0;
2701 gi->this_reg = inst->inst_basereg;
2702 gi->this_offset = inst->inst_offset;
2707 MonoTryBlockHoleTableJitInfo *table;
2710 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2711 table->num_holes = (guint16)num_holes;
2713 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2714 guint32 start_bb_offset;
2715 MonoTryBlockHoleJitInfo *hole;
2716 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2717 MonoExceptionClause *ec = hole_data->clause;
2718 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2719 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2720 g_assert (clause_last_bb);
2722 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2723 if (clause_last_bb->native_offset == hole_end)
2726 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2727 hole = &table->holes [i++];
2728 hole->clause = hole_data->clause - &header->clauses [0];
2729 hole->offset = (guint32)hole_data->start_offset;
2730 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2732 if (G_UNLIKELY (cfg->verbose_level >= 4))
2733 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2735 g_assert (i == num_holes);
2738 if (jinfo->has_arch_eh_info) {
2739 MonoArchEHJitInfo *info;
2741 info = mono_jit_info_get_arch_eh_info (jinfo);
2743 info->stack_size = stack_size;
2746 if (cfg->thunk_area) {
2747 MonoThunkJitInfo *info;
2749 info = mono_jit_info_get_thunk_info (jinfo);
2750 info->thunks_offset = cfg->thunks_offset;
2751 info->thunks_size = cfg->thunk_area;
2754 if (COMPILE_LLVM (cfg)) {
2756 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2757 } else if (header->num_clauses) {
2760 for (i = 0; i < header->num_clauses; i++) {
2761 MonoExceptionClause *ec = &header->clauses [i];
2762 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2763 MonoBasicBlock *tblock;
2764 MonoInst *exvar, *spvar;
2766 ei->flags = ec->flags;
2768 if (G_UNLIKELY (cfg->verbose_level >= 4))
2769 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);
2772 * The spvars are needed by mono_arch_install_handler_block_guard ().
2774 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2777 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2778 spvar = mono_find_spvar_for_region (cfg, region);
2780 ei->exvar_offset = spvar->inst_offset;
2782 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2783 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2786 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2787 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2789 ei->data.filter = cfg->native_code + tblock->native_offset;
2791 ei->data.catch_class = ec->data.catch_class;
2794 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2796 g_assert (tblock->native_offset);
2797 ei->try_start = cfg->native_code + tblock->native_offset;
2798 if (tblock->extend_try_block) {
2800 * Extend the try block backwards to include parts of the previous call
2803 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
2805 if (ec->try_offset + ec->try_len < header->code_size)
2806 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2808 tblock = cfg->bb_exit;
2809 if (G_UNLIKELY (cfg->verbose_level >= 4))
2810 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
2812 if (!tblock->native_offset) {
2814 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2815 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2816 if (bb && bb->native_offset) {
2822 ei->try_end = cfg->native_code + tblock->native_offset;
2823 g_assert (tblock->native_offset);
2824 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2826 ei->handler_start = cfg->native_code + tblock->native_offset;
2828 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2829 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2830 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2831 if (hole->clause == ec && hole_end == ei->try_end) {
2832 if (G_UNLIKELY (cfg->verbose_level >= 4))
2833 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2835 ei->try_end = cfg->native_code + hole->start_offset;
2840 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2842 if (ec->handler_offset + ec->handler_len < header->code_size) {
2843 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2844 if (tblock->native_offset) {
2845 end_offset = tblock->native_offset;
2849 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2850 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2851 if (bb && bb->native_offset) {
2856 end_offset = tblock->native_offset + tblock->native_length;
2859 end_offset = cfg->epilog_begin;
2861 ei->data.handler_end = cfg->native_code + end_offset;
2866 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2868 for (i = 0; i < jinfo->num_clauses; i++) {
2869 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2870 int start = (guint8*)ei->try_start - cfg->native_code;
2871 int end = (guint8*)ei->try_end - cfg->native_code;
2872 int handler = (guint8*)ei->handler_start - cfg->native_code;
2873 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2875 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2879 if (cfg->encoded_unwind_ops) {
2880 /* Generated by LLVM */
2881 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2882 g_free (cfg->encoded_unwind_ops);
2883 } else if (cfg->unwind_ops) {
2885 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2886 guint32 unwind_desc;
2888 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2890 if (cfg->has_unwind_info_for_epilog) {
2891 MonoArchEHJitInfo *info;
2893 info = mono_jit_info_get_arch_eh_info (jinfo);
2895 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2897 jinfo->unwind_info = unwind_desc;
2898 g_free (unwind_info);
2900 jinfo->unwind_info = cfg->used_int_regs;
2906 /* Return whenever METHOD is a gsharedvt method */
2908 is_gsharedvt_method (MonoMethod *method)
2910 MonoGenericContext *context;
2911 MonoGenericInst *inst;
2914 if (!method->is_inflated)
2916 context = mono_method_get_context (method);
2917 inst = context->class_inst;
2919 for (i = 0; i < inst->type_argc; ++i)
2920 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2923 inst = context->method_inst;
2925 for (i = 0; i < inst->type_argc; ++i)
2926 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2933 is_open_method (MonoMethod *method)
2935 MonoGenericContext *context;
2937 if (!method->is_inflated)
2939 context = mono_method_get_context (method);
2940 if (context->class_inst && context->class_inst->is_open)
2942 if (context->method_inst && context->method_inst->is_open)
2948 mono_insert_nop_in_empty_bb (MonoCompile *cfg)
2951 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2955 MONO_INST_NEW (cfg, nop, OP_NOP);
2956 MONO_ADD_INS (bb, nop);
2960 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
2962 MonoInst *poll_addr, *ins;
2964 if (cfg->disable_gc_safe_points)
2967 if (cfg->verbose_level > 1)
2968 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
2970 #if defined(__native_client_codegen__)
2971 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
2973 g_assert (mono_threads_is_coop_enabled ());
2974 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
2977 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
2978 ins->sreg1 = poll_addr->dreg;
2980 if (bblock->flags & BB_EXCEPTION_HANDLER) {
2981 MonoInst *eh_op = bblock->code;
2983 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
2986 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
2987 // skip all EH relateds ops
2988 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
2990 next_eh_op = eh_op->next;
2994 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
2995 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2996 } else if (bblock == cfg->bb_entry) {
2997 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
2998 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3001 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
3002 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3007 This code inserts safepoints into managed code at important code paths.
3010 -the first basic block
3011 -landing BB for exception handlers
3016 mono_insert_safepoints (MonoCompile *cfg)
3020 #if !defined(__native_client_codegen__)
3021 if (!mono_threads_is_coop_enabled ())
3025 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3026 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3027 #if defined(__native_client__) || defined(__native_client_codegen__)
3028 gpointer poll_func = &mono_nacl_gc;
3030 g_assert (mono_threads_is_coop_enabled ());
3031 gpointer poll_func = &mono_threads_state_poll;
3034 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
3035 if (cfg->verbose_level > 1)
3036 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
3041 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
3042 if (cfg->verbose_level > 1)
3043 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
3047 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3048 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3050 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
3051 (info->d.icall.func == mono_thread_interruption_checkpoint ||
3052 info->d.icall.func == mono_threads_exit_gc_safe_region_unbalanced)) {
3053 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
3054 if (cfg->verbose_level > 1)
3055 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
3060 if (cfg->verbose_level > 1)
3061 printf ("INSERTING SAFEPOINTS\n");
3062 if (cfg->verbose_level > 2)
3063 mono_print_code (cfg, "BEFORE SAFEPOINTS");
3065 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3066 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
3067 mono_create_gc_safepoint (cfg, bb);
3070 if (cfg->verbose_level > 2)
3071 mono_print_code (cfg, "AFTER SAFEPOINTS");
3077 mono_insert_branches_between_bblocks (MonoCompile *cfg)
3081 /* Add branches between non-consecutive bblocks */
3082 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3083 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3084 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3085 /* we are careful when inverting, since bugs like #59580
3086 * could show up when dealing with NaNs.
3088 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3089 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3090 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3091 bb->last_ins->inst_false_bb = tmp;
3093 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3095 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3096 inst->opcode = OP_BR;
3097 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3098 mono_bblock_add_inst (bb, inst);
3103 if (cfg->verbose_level >= 4) {
3104 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3105 MonoInst *tree = bb->code;
3106 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3109 for (; tree; tree = tree->next) {
3110 mono_print_ins_index (-1, tree);
3116 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3117 bb->max_vreg = cfg->next_vreg;
3122 init_backend (MonoBackend *backend)
3124 #ifdef MONO_ARCH_NEED_GOT_VAR
3125 backend->need_got_var = 1;
3127 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
3128 backend->have_card_table_wb = 1;
3130 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3131 backend->have_op_generic_class_init = 1;
3133 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3134 backend->emulate_mul_div = 1;
3136 #ifdef MONO_ARCH_EMULATE_DIV
3137 backend->emulate_div = 1;
3139 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3140 backend->emulate_long_shift_opts = 1;
3142 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3143 backend->have_objc_get_selector = 1;
3145 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE
3146 backend->have_generalized_imt_trampoline = 1;
3148 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3149 backend->gshared_supported = 1;
3151 if (MONO_ARCH_HAVE_TLS_GET)
3152 backend->have_tls_get = 1;
3153 #ifdef MONO_ARCH_HAVE_TLS_GET_REG
3154 backend->have_tls_get_reg = 1;
3156 if (MONO_ARCH_USE_FPSTACK)
3157 backend->use_fpstack = 1;
3158 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3159 backend->have_liverange_ops = 1;
3161 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3162 backend->have_op_tail_call = 1;
3164 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3165 backend->monitor_enter_adjustment = 1;
3167 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3169 #if defined(__mono_ilp32__)
3172 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3173 backend->have_dummy_init = 1;
3175 #ifdef MONO_ARCH_NEED_DIV_CHECK
3176 backend->need_div_check = 1;
3178 #ifdef NO_UNALIGNED_ACCESS
3179 backend->no_unaligned_access = 1;
3181 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3182 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3184 #ifdef MONO_ARCH_NO_DIV_WITH_MUL
3185 backend->disable_div_with_mul = 1;
3190 * mini_method_compile:
3191 * @method: the method to compile
3192 * @opts: the optimization flags to use
3193 * @domain: the domain where the method will be compiled in
3194 * @flags: compilation flags
3195 * @parts: debug flag
3197 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3198 * field in the returned struct to see if compilation succeded.
3201 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3203 MonoMethodHeader *header;
3204 MonoMethodSignature *sig;
3207 int i, code_size_ratio;
3208 gboolean try_generic_shared, try_llvm = FALSE;
3209 MonoMethod *method_to_compile, *method_to_register;
3210 gboolean method_is_gshared = FALSE;
3211 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3212 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3213 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3214 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3215 gboolean gsharedvt_method = FALSE;
3217 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3219 static gboolean verbose_method_inited;
3220 static const char *verbose_method_name;
3222 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3223 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3224 mono_profiler_method_jit (method);
3225 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3226 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3228 gsharedvt_method = is_gsharedvt_method (method);
3231 * In AOT mode, method can be the following:
3232 * - a gsharedvt method.
3233 * - a method inflated with type parameters. This is for ref/partial sharing.
3234 * - a method inflated with concrete types.
3237 if (is_open_method (method)) {
3238 try_generic_shared = TRUE;
3239 method_is_gshared = TRUE;
3241 try_generic_shared = FALSE;
3243 g_assert (opts & MONO_OPT_GSHARED);
3245 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3246 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3247 if (mini_is_gsharedvt_sharable_method (method)) {
3249 if (!mono_debug_count ())
3250 try_generic_shared = FALSE;
3256 if (try_generic_shared && !mono_debug_count ())
3257 try_generic_shared = FALSE;
3260 if (opts & MONO_OPT_GSHARED) {
3261 if (try_generic_shared)
3262 mono_stats.generics_sharable_methods++;
3263 else if (mono_method_is_generic_impl (method))
3264 mono_stats.generics_unsharable_methods++;
3268 try_llvm = mono_use_llvm || llvm;
3272 if (method_is_gshared) {
3273 method_to_compile = method;
3275 if (try_generic_shared) {
3276 method_to_compile = mini_get_shared_method (method);
3277 g_assert (method_to_compile);
3279 method_to_compile = method;
3283 cfg = g_new0 (MonoCompile, 1);
3284 cfg->method = method_to_compile;
3285 cfg->mempool = mono_mempool_new ();
3287 cfg->prof_options = mono_profiler_get_events ();
3288 cfg->run_cctors = run_cctors;
3289 cfg->domain = domain;
3290 cfg->verbose_level = mini_verbose;
3291 cfg->compile_aot = compile_aot;
3292 cfg->full_aot = full_aot;
3293 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3294 cfg->skip_visibility = method->skip_visibility;
3295 cfg->orig_method = method;
3296 cfg->gen_seq_points = !debug_options.no_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3297 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3298 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3299 cfg->backend = current_backend;
3301 #ifdef PLATFORM_ANDROID
3302 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3303 /* FIXME: Why is this needed */
3304 cfg->gen_seq_points = FALSE;
3305 cfg->gen_sdb_seq_points = FALSE;
3308 if (cfg->method->wrapper_type == MONO_WRAPPER_ALLOC) {
3309 /* We can't have seq points inside gc critical regions */
3310 cfg->gen_seq_points = FALSE;
3311 cfg->gen_sdb_seq_points = FALSE;
3313 /* coop / nacl requires loop detection to happen */
3314 #if defined(__native_client_codegen__)
3315 cfg->opt |= MONO_OPT_LOOP;
3317 if (mono_threads_is_coop_enabled ())
3318 cfg->opt |= MONO_OPT_LOOP;
3320 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3321 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3322 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3323 cfg->disable_direct_icalls = disable_direct_icalls;
3324 cfg->direct_pinvoke = (flags & JIT_FLAG_DIRECT_PINVOKE) != 0;
3325 if (try_generic_shared)
3326 cfg->gshared = TRUE;
3327 cfg->compile_llvm = try_llvm;
3328 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3329 if (cfg->compile_aot)
3330 cfg->method_index = aot_method_index;
3333 if (!mono_debug_count ())
3334 cfg->opt &= ~MONO_OPT_FLOAT32;
3337 cfg->opt &= ~MONO_OPT_SIMD;
3338 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3339 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3341 if (cfg->gen_seq_points)
3342 cfg->seq_points = g_ptr_array_new ();
3343 mono_error_init (&cfg->error);
3345 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || mono_class_is_gtd (method->klass) || method_is_gshared)) {
3346 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3350 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3351 MonoMethodInflated *inflated;
3352 MonoGenericContext *context;
3354 if (gsharedvt_method) {
3355 g_assert (method->is_inflated);
3356 inflated = (MonoMethodInflated*)method;
3357 context = &inflated->context;
3359 /* We are compiling a gsharedvt method directly */
3360 g_assert (compile_aot);
3362 g_assert (method_to_compile->is_inflated);
3363 inflated = (MonoMethodInflated*)method_to_compile;
3364 context = &inflated->context;
3367 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3368 cfg->gsctx_context = context;
3370 cfg->gsharedvt = TRUE;
3371 if (!cfg->llvm_only) {
3372 cfg->disable_llvm = TRUE;
3373 cfg->exception_message = g_strdup ("gsharedvt");
3378 method_to_register = method_to_compile;
3380 g_assert (method == method_to_compile);
3381 method_to_register = method;
3383 cfg->method_to_register = method_to_register;
3385 mono_error_init (&err);
3386 sig = mono_method_signature_checked (cfg->method, &err);
3388 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3389 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3390 mono_error_cleanup (&err);
3391 if (MONO_METHOD_COMPILE_END_ENABLED ())
3392 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3396 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3398 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3399 if (MONO_METHOD_COMPILE_END_ENABLED ())
3400 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3406 static gboolean inited;
3412 * Check for methods which cannot be compiled by LLVM early, to avoid
3413 * the extra compilation pass.
3415 if (COMPILE_LLVM (cfg)) {
3416 mono_llvm_check_method_supported (cfg);
3417 if (cfg->disable_llvm) {
3418 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3419 //nm = mono_method_full_name (cfg->method, TRUE);
3420 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3423 if (cfg->llvm_only) {
3424 g_free (cfg->exception_message);
3425 cfg->disable_aot = TRUE;
3428 mono_destroy_compile (cfg);
3430 goto restart_compile;
3436 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3437 if (debug_options.mdb_optimizations) {
3438 cfg->disable_reuse_registers = TRUE;
3439 cfg->disable_reuse_stack_slots = TRUE;
3441 * This decreases the change the debugger will read registers/stack slots which are
3442 * not yet initialized.
3444 cfg->disable_initlocals_opt = TRUE;
3446 cfg->extend_live_ranges = TRUE;
3448 /* The debugger needs all locals to be on the stack or in a global register */
3449 cfg->disable_vreg_to_lvreg = TRUE;
3451 /* Don't remove unused variables when running inside the debugger since the user
3452 * may still want to view them. */
3453 cfg->disable_deadce_vars = TRUE;
3455 cfg->opt &= ~MONO_OPT_DEADCE;
3456 cfg->opt &= ~MONO_OPT_INLINE;
3457 cfg->opt &= ~MONO_OPT_COPYPROP;
3458 cfg->opt &= ~MONO_OPT_CONSPROP;
3460 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3461 cfg->disable_out_of_line_bblocks = TRUE;
3464 if (mono_using_xdebug) {
3466 * Make each variable use its own register/stack slot and extend
3467 * their liveness to cover the whole method, making them displayable
3468 * in gdb even after they are dead.
3470 cfg->disable_reuse_registers = TRUE;
3471 cfg->disable_reuse_stack_slots = TRUE;
3472 cfg->extend_live_ranges = TRUE;
3473 cfg->compute_precise_live_ranges = TRUE;
3476 mini_gc_init_cfg (cfg);
3478 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
3479 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3481 /* These wrappers are using linkonce linkage, so they can't access GOT slots */
3482 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) {
3483 cfg->disable_gc_safe_points = TRUE;
3484 /* This is safe, these wrappers only store to the stack */
3485 cfg->gen_write_barriers = FALSE;
3489 if (COMPILE_LLVM (cfg)) {
3490 cfg->opt |= MONO_OPT_ABCREM;
3493 if (!verbose_method_inited) {
3494 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3495 verbose_method_inited = TRUE;
3497 if (verbose_method_name) {
3498 const char *name = verbose_method_name;
3500 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3501 MonoMethodDesc *desc;
3503 desc = mono_method_desc_new (name, TRUE);
3504 if (mono_method_desc_full_match (desc, cfg->method)) {
3505 cfg->verbose_level = 4;
3507 mono_method_desc_free (desc);
3509 if (strcmp (cfg->method->name, name) == 0)
3510 cfg->verbose_level = 4;
3514 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3516 if (cfg->verbose_level > 0) {
3519 method_name = mono_method_get_full_name (method);
3520 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3522 if (COMPILE_LLVM (cfg))
3523 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3524 else if (cfg->gsharedvt)
3525 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3526 else if (cfg->gshared)
3527 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3529 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3531 g_free (method_name);
3534 if (cfg->opt & MONO_OPT_ABCREM)
3535 cfg->opt |= MONO_OPT_SSA;
3537 cfg->rs = mono_regstate_new ();
3538 cfg->next_vreg = cfg->rs->next_vreg;
3540 /* FIXME: Fix SSA to handle branches inside bblocks */
3541 if (cfg->opt & MONO_OPT_SSA)
3542 cfg->enable_extended_bblocks = FALSE;
3545 * FIXME: This confuses liveness analysis because variables which are assigned after
3546 * a branch inside a bblock become part of the kill set, even though the assignment
3547 * might not get executed. This causes the optimize_initlocals pass to delete some
3548 * assignments which are needed.
3549 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3552 //cfg->enable_extended_bblocks = TRUE;
3554 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3555 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3556 if (mini_get_debug_options ()->break_on_unverified)
3562 * create MonoInst* which represents arguments and local variables
3564 mono_compile_create_vars (cfg);
3566 mono_cfg_dump_create_context (cfg);
3567 mono_cfg_dump_begin_group (cfg);
3569 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));
3570 mono_cfg_dump_ir (cfg, "method-to-ir");
3572 if (cfg->gdump_ctx != NULL) {
3573 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3574 mono_insert_nop_in_empty_bb (cfg);
3575 mono_cfg_dump_ir (cfg, "mono_insert_nop_in_empty_bb");
3579 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3581 if (MONO_METHOD_COMPILE_END_ENABLED ())
3582 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3585 mono_destroy_compile (cfg);
3586 try_generic_shared = FALSE;
3587 goto restart_compile;
3589 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3591 if (MONO_METHOD_COMPILE_END_ENABLED ())
3592 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3593 /* cfg contains the details of the failure, so let the caller cleanup */
3597 cfg->stat_basic_blocks += cfg->num_bblocks;
3599 if (COMPILE_LLVM (cfg)) {
3602 /* The IR has to be in SSA form for LLVM */
3603 cfg->opt |= MONO_OPT_SSA;
3607 // Allow SSA on the result value
3608 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3610 // Add an explicit return instruction referencing the return value
3611 MONO_INST_NEW (cfg, ins, OP_SETRET);
3612 ins->sreg1 = cfg->ret->dreg;
3614 MONO_ADD_INS (cfg->bb_exit, ins);
3617 cfg->opt &= ~MONO_OPT_LINEARS;
3620 cfg->opt &= ~MONO_OPT_BRANCH;
3623 /* todo: remove code when we have verified that the liveness for try/catch blocks
3627 * Currently, this can't be commented out since exception blocks are not
3628 * processed during liveness analysis.
3629 * It is also needed, because otherwise the local optimization passes would
3630 * delete assignments in cases like this:
3632 * <something which throws>
3634 * This also allows SSA to be run on methods containing exception clauses, since
3635 * SSA will ignore variables marked VOLATILE.
3637 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3638 mono_cfg_dump_ir (cfg, "liveness_handle_exception_clauses");
3640 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3641 mono_cfg_dump_ir (cfg, "handle_out_of_line_bblock");
3643 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3645 if (!COMPILE_LLVM (cfg)) {
3646 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3647 mono_cfg_dump_ir (cfg, "decompose_long_opts");
3650 /* Should be done before branch opts */
3651 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP)) {
3652 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3653 mono_cfg_dump_ir (cfg, "local_cprop");
3656 if (cfg->flags & MONO_CFG_HAS_TYPE_CHECK) {
3657 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_typechecks, mono_decompose_typechecks (cfg));
3658 if (cfg->gdump_ctx != NULL) {
3659 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3660 mono_insert_nop_in_empty_bb (cfg);
3662 mono_cfg_dump_ir (cfg, "decompose_typechecks");
3666 * Should be done after cprop which can do strength reduction on
3667 * some of these ops, after propagating immediates.
3669 if (cfg->has_emulated_ops) {
3670 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3671 mono_cfg_dump_ir (cfg, "local_emulate_ops");
3674 if (cfg->opt & MONO_OPT_BRANCH) {
3675 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3676 mono_cfg_dump_ir (cfg, "optimize_branches");
3679 /* This must be done _before_ global reg alloc and _after_ decompose */
3680 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3681 mono_cfg_dump_ir (cfg, "handle_global_vregs");
3682 if (cfg->opt & MONO_OPT_DEADCE) {
3683 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3684 mono_cfg_dump_ir (cfg, "local_deadce");
3686 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS) {
3687 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3688 mono_cfg_dump_ir (cfg, "local_alias_analysis");
3690 /* Disable this for LLVM to make the IR easier to handle */
3691 if (!COMPILE_LLVM (cfg)) {
3692 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3693 mono_cfg_dump_ir (cfg, "if_conversion");
3696 mono_threads_safepoint ();
3698 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3699 mono_cfg_dump_ir (cfg, "bb_ordering");
3701 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3703 * we disable some optimizations if there are too many variables
3704 * because JIT time may become too expensive. The actual number needs
3705 * to be tweaked and eventually the non-linear algorithms should be fixed.
3707 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3708 cfg->disable_ssa = TRUE;
3711 if (cfg->opt & MONO_OPT_LOOP) {
3712 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3713 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3716 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3717 mono_cfg_dump_ir (cfg, "insert_safepoints");
3719 /* after method_to_ir */
3721 if (MONO_METHOD_COMPILE_END_ENABLED ())
3722 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3727 if (header->num_clauses)
3728 cfg->disable_ssa = TRUE;
3731 //#define DEBUGSSA "logic_run"
3732 //#define DEBUGSSA_CLASS "Tests"
3735 if (!cfg->disable_ssa) {
3736 mono_local_cprop (cfg);
3739 mono_ssa_compute (cfg);
3743 if (cfg->opt & MONO_OPT_SSA) {
3744 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3746 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3747 mono_cfg_dump_ir (cfg, "ssa_compute");
3750 if (cfg->verbose_level >= 2) {
3757 /* after SSA translation */
3759 if (MONO_METHOD_COMPILE_END_ENABLED ())
3760 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3764 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3765 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3767 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3768 mono_cfg_dump_ir (cfg, "ssa_cprop");
3774 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3775 //mono_ssa_strength_reduction (cfg);
3777 if (cfg->opt & MONO_OPT_DEADCE) {
3778 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3779 mono_cfg_dump_ir (cfg, "ssa_deadce");
3782 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM)) {
3783 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3784 mono_cfg_dump_ir (cfg, "perform_abc_removal");
3787 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3788 mono_cfg_dump_ir (cfg, "ssa_remove");
3789 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3790 mono_cfg_dump_ir (cfg, "local_cprop2");
3791 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3792 mono_cfg_dump_ir (cfg, "handle_global_vregs2");
3793 if (cfg->opt & MONO_OPT_DEADCE) {
3794 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3795 mono_cfg_dump_ir (cfg, "local_deadce2");
3798 if (cfg->opt & MONO_OPT_BRANCH) {
3799 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3800 mono_cfg_dump_ir (cfg, "optimize_branches2");
3805 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3806 mono_ssa_loop_invariant_code_motion (cfg);
3807 mono_cfg_dump_ir (cfg, "loop_invariant_code_motion");
3808 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3809 if (cfg->opt & MONO_OPT_ABCREM) {
3810 mono_perform_abc_removal (cfg);
3811 mono_cfg_dump_ir (cfg, "abc_removal");
3815 /* after SSA removal */
3817 if (MONO_METHOD_COMPILE_END_ENABLED ())
3818 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3822 if (cfg->llvm_only && cfg->gsharedvt)
3823 mono_ssa_remove_gsharedvt (cfg);
3825 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3826 if (COMPILE_SOFT_FLOAT (cfg))
3827 mono_decompose_soft_float (cfg);
3829 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3830 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS) {
3831 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3832 mono_cfg_dump_ir (cfg, "decompose_array_access_opts");
3836 #ifndef MONO_ARCH_GOT_REG
3841 g_assert (cfg->got_var_allocated);
3844 * Allways allocate the GOT var to a register, because keeping it
3845 * in memory will increase the number of live temporaries in some
3846 * code created by inssel.brg, leading to the well known spills+
3847 * branches problem. Testcase: mcs crash in
3848 * System.MonoCustomAttrs:GetCustomAttributes.
3850 #ifdef MONO_ARCH_GOT_REG
3851 got_reg = MONO_ARCH_GOT_REG;
3853 regs = mono_arch_get_global_int_regs (cfg);
3855 got_reg = GPOINTER_TO_INT (regs->data);
3858 cfg->got_var->opcode = OP_REGVAR;
3859 cfg->got_var->dreg = got_reg;
3860 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3864 * Have to call this again to process variables added since the first call.
3866 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3868 if (cfg->opt & MONO_OPT_LINEARS) {
3869 GList *vars, *regs, *l;
3871 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3872 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3873 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3874 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3876 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3877 regs = mono_arch_get_global_int_regs (cfg);
3878 /* Remove the reg reserved for holding the GOT address */
3880 for (l = regs; l; l = l->next) {
3881 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3882 regs = g_list_delete_link (regs, l);
3887 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
3888 mono_cfg_dump_ir (cfg, "linear_scan");
3892 //mono_print_code (cfg, "");
3896 /* variables are allocated after decompose, since decompose could create temps */
3897 if (!COMPILE_LLVM (cfg)) {
3898 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
3899 mono_cfg_dump_ir (cfg, "arch_allocate_vars");
3900 if (cfg->exception_type)
3905 mono_allocate_gsharedvt_vars (cfg);
3907 if (!COMPILE_LLVM (cfg)) {
3908 gboolean need_local_opts;
3909 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
3910 mono_cfg_dump_ir (cfg, "spill_global_vars");
3912 if (need_local_opts || cfg->compile_aot) {
3913 /* To optimize code created by spill_global_vars */
3914 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
3915 if (cfg->opt & MONO_OPT_DEADCE)
3916 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
3917 mono_cfg_dump_ir (cfg, "needs_local_opts");
3921 mono_insert_branches_between_bblocks (cfg);
3923 if (COMPILE_LLVM (cfg)) {
3927 /* The IR has to be in SSA form for LLVM */
3928 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3929 cfg->exception_message = g_strdup ("SSA disabled.");
3930 cfg->disable_llvm = TRUE;
3933 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3934 mono_decompose_array_access_opts (cfg);
3936 if (!cfg->disable_llvm)
3937 mono_llvm_emit_method (cfg);
3938 if (cfg->disable_llvm) {
3939 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3940 //nm = mono_method_full_name (cfg->method, TRUE);
3941 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3944 if (cfg->llvm_only) {
3945 cfg->disable_aot = TRUE;
3948 mono_destroy_compile (cfg);
3950 goto restart_compile;
3953 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3954 nm = mono_method_full_name (cfg->method, TRUE);
3955 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3957 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3962 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
3963 mono_cfg_dump_ir (cfg, "codegen");
3964 if (cfg->exception_type)
3968 if (COMPILE_LLVM (cfg))
3969 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3971 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3973 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
3975 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3976 if (cfg->extend_live_ranges) {
3977 /* Extend live ranges to cover the whole method */
3978 for (i = 0; i < cfg->num_varinfo; ++i)
3979 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3983 if (!cfg->compile_aot)
3984 mono_save_xdebug_info (cfg);
3986 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
3988 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
3990 if (cfg->verbose_level >= 2) {
3991 char *id = mono_method_full_name (cfg->method, FALSE);
3992 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3996 if (!cfg->compile_aot) {
3997 mono_domain_lock (cfg->domain);
3998 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
4000 if (cfg->method->dynamic)
4001 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
4002 mono_domain_unlock (cfg->domain);
4007 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
4010 /* collect statistics */
4011 #ifndef DISABLE_PERFCOUNTERS
4012 mono_perfcounters->jit_methods++;
4013 mono_perfcounters->jit_bytes += header->code_size;
4015 mono_jit_stats.allocated_code_size += cfg->code_len;
4016 code_size_ratio = cfg->code_len;
4017 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
4018 mono_jit_stats.biggest_method_size = code_size_ratio;
4019 g_free (mono_jit_stats.biggest_method);
4020 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4022 code_size_ratio = (code_size_ratio * 100) / header->code_size;
4023 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
4024 mono_jit_stats.max_code_size_ratio = code_size_ratio;
4025 g_free (mono_jit_stats.max_ratio_method);
4026 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4028 mono_jit_stats.native_code_size += cfg->code_len;
4030 if (MONO_METHOD_COMPILE_END_ENABLED ())
4031 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4033 mono_cfg_dump_close_group (cfg);
4039 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
4041 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
4045 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
4047 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
4048 hole->clause = clause;
4049 hole->start_offset = start - cfg->native_code;
4050 hole->basic_block = bb;
4052 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
4056 mono_cfg_set_exception (MonoCompile *cfg, int type)
4058 cfg->exception_type = type;
4061 /* Assumes ownership of the MSG argument */
4063 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
4065 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
4066 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", "%s", msg);
4069 #endif /* DISABLE_JIT */
4072 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
4074 MonoDomain *domain = mono_get_root_domain ();
4079 if (info->uw_info) {
4080 uw_info = info->uw_info;
4081 info_len = info->uw_info_len;
4083 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
4086 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
4087 jinfo->d.method = wrapper;
4088 jinfo->code_start = info->code;
4089 jinfo->code_size = info->code_size;
4090 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
4098 GTimer *mono_time_track_start ()
4100 return g_timer_new ();
4103 void mono_time_track_end (double *time, GTimer *timer)
4105 g_timer_stop (timer);
4106 *time += g_timer_elapsed (timer, NULL);
4107 g_timer_destroy (timer);
4110 void mono_update_jit_stats (MonoCompile *cfg)
4112 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4113 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4114 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4115 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4116 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4117 mono_jit_stats.regvars += cfg->stat_n_regvars;
4118 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4119 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4120 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4124 * mono_jit_compile_method_inner:
4126 * Main entry point for the JIT.
4129 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4132 gpointer code = NULL;
4133 MonoJitInfo *jinfo, *info;
4135 MonoException *ex = NULL;
4136 guint32 prof_options;
4138 MonoMethod *prof_method, *shared;
4140 mono_error_init (error);
4142 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4143 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4145 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4147 if (!piinfo->addr) {
4148 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4149 piinfo->addr = mono_lookup_internal_call (method);
4150 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4152 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);
4154 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);
4157 mono_lookup_pinvoke_call (method, NULL, NULL);
4159 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4160 gpointer compiled_method = mono_compile_method_checked (nm, error);
4161 return_val_if_nok (error, NULL);
4162 code = mono_get_addr_from_ftnptr (compiled_method);
4163 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4165 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4167 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4169 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4170 const char *name = method->name;
4171 char *full_name, *msg;
4174 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4175 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4176 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4179 * We need to make sure this wrapper
4180 * is compiled because it might end up
4181 * in an (M)RGCTX if generic sharing
4182 * is enabled, and would be called
4183 * indirectly. If it were a
4184 * trampoline we'd try to patch that
4185 * indirect call, which is not
4188 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4189 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4190 if (mono_llvm_only) {
4191 nm = mono_marshal_get_delegate_invoke (method, NULL);
4192 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4193 mono_error_assert_ok (error);
4194 return mono_get_addr_from_ftnptr (compiled_ptr);
4196 return mono_create_delegate_trampoline (target_domain, method->klass);
4197 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4198 nm = mono_marshal_get_delegate_begin_invoke (method);
4199 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4200 mono_error_assert_ok (error);
4201 return mono_get_addr_from_ftnptr (compiled_ptr);
4202 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4203 nm = mono_marshal_get_delegate_end_invoke (method);
4204 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4205 mono_error_assert_ok (error);
4206 return mono_get_addr_from_ftnptr (compiled_ptr);
4210 full_name = mono_method_full_name (method, TRUE);
4211 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4212 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4213 mono_error_set_exception_instance (error, ex);
4219 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4220 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4222 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4223 static MonoTrampInfo *in_tinfo, *out_tinfo;
4224 MonoTrampInfo *tinfo;
4226 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4228 if (is_in && in_tinfo)
4229 return in_tinfo->code;
4230 else if (!is_in && out_tinfo)
4231 return out_tinfo->code;
4234 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4236 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4239 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4241 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4242 jinfo = create_jit_info_for_trampoline (method, tinfo);
4243 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4252 if (mono_aot_only) {
4253 char *fullname = mono_method_full_name (method, TRUE);
4254 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);
4260 jit_timer = mono_time_track_start ();
4261 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4262 double jit_time = 0.0;
4263 mono_time_track_end (&jit_time, jit_timer);
4264 mono_jit_stats.jit_time += jit_time;
4266 prof_method = cfg->method;
4268 switch (cfg->exception_type) {
4269 case MONO_EXCEPTION_NONE:
4271 case MONO_EXCEPTION_TYPE_LOAD:
4272 case MONO_EXCEPTION_MISSING_FIELD:
4273 case MONO_EXCEPTION_MISSING_METHOD:
4274 case MONO_EXCEPTION_FILE_NOT_FOUND:
4275 case MONO_EXCEPTION_BAD_IMAGE:
4276 case MONO_EXCEPTION_INVALID_PROGRAM: {
4277 /* Throw a type load exception if needed */
4278 if (cfg->exception_ptr) {
4279 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4281 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4282 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4283 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4284 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4285 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4286 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4287 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4288 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4289 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4290 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4291 else if (cfg->exception_type == MONO_EXCEPTION_INVALID_PROGRAM)
4292 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4294 g_assert_not_reached ();
4298 case MONO_EXCEPTION_MONO_ERROR:
4299 // FIXME: MonoError has no copy ctor
4300 g_assert (!mono_error_ok (&cfg->error));
4301 ex = mono_error_convert_to_exception (&cfg->error);
4304 g_assert_not_reached ();
4308 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4309 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4311 mono_destroy_compile (cfg);
4312 mono_error_set_exception_instance (error, ex);
4317 if (mono_method_is_generic_sharable (method, FALSE))
4318 shared = mini_get_shared_method (method);
4322 mono_domain_lock (target_domain);
4324 /* Check if some other thread already did the job. In this case, we can
4325 discard the code this thread generated. */
4327 info = mini_lookup_method (target_domain, method, shared);
4329 /* We can't use a domain specific method in another domain */
4330 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4331 code = info->code_start;
4333 discarded_jit_time += jit_time;
4337 /* The lookup + insert is atomic since this is done inside the domain lock */
4338 mono_domain_jit_code_hash_lock (target_domain);
4339 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4340 mono_domain_jit_code_hash_unlock (target_domain);
4342 code = cfg->native_code;
4344 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4345 mono_stats.generics_shared_methods++;
4347 mono_stats.gsharedvt_methods++;
4350 jinfo = cfg->jit_info;
4352 prof_options = cfg->prof_options;
4355 * Update global stats while holding a lock, instead of doing many
4356 * InterlockedIncrement operations during JITting.
4358 mono_update_jit_stats (cfg);
4360 mono_destroy_compile (cfg);
4363 if (domain_jit_info (target_domain)->jump_target_hash) {
4364 MonoJumpInfo patch_info;
4365 MonoJumpList *jlist;
4367 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4369 patch_info.next = NULL;
4370 patch_info.ip.i = 0;
4371 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4372 patch_info.data.method = method;
4373 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4375 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4376 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4377 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4378 if (!mono_error_ok (error))
4380 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4383 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4384 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE, error);
4392 /* Update llvm callees */
4393 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4394 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4397 for (l = callees; l; l = l->next) {
4398 gpointer *addr = (gpointer*)l->data;
4404 mono_emit_jit_map (jinfo);
4406 mono_domain_unlock (target_domain);
4408 if (!mono_error_ok (error))
4411 vtable = mono_class_vtable (target_domain, method->klass);
4413 g_assert (mono_class_has_failure (method->klass));
4414 mono_error_set_for_class_failure (error, method->klass);
4418 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4419 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4420 if (mono_marshal_method_from_wrapper (method)) {
4421 /* Native func wrappers have no method */
4422 /* The profiler doesn't know about wrappers, so pass the original icall method */
4423 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4426 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4427 if (prof_method != method) {
4428 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4432 if (!mono_runtime_class_init_full (vtable, error))
4438 * mini_get_underlying_type:
4440 * Return the type the JIT will use during compilation.
4441 * Handles: byref, enums, native types, generic sharing.
4442 * For gsharedvt types, it will return the original VAR/MVAR.
4445 mini_get_underlying_type (MonoType *type)
4447 return mini_type_get_underlying_type (type);
4451 mini_jit_init (void)
4453 mono_counters_register ("Discarded method code", MONO_COUNTER_JIT | MONO_COUNTER_INT, &discarded_code);
4454 mono_counters_register ("Time spent JITting discarded code", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &discarded_jit_time);
4456 mono_os_mutex_init_recursive (&jit_mutex);
4458 current_backend = g_new0 (MonoBackend, 1);
4459 init_backend (current_backend);
4464 mini_jit_cleanup (void)
4467 g_free (emul_opcode_map);
4468 g_free (emul_opcode_opcodes);
4474 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4476 g_assert_not_reached ();
4479 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4481 g_assert_not_reached ();
4486 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4489 mono_llvm_cpp_throw_exception (void)
4491 g_assert_not_reached ();
4499 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4501 g_assert_not_reached ();
4506 mono_destroy_compile (MonoCompile *cfg)
4508 g_assert_not_reached ();
4512 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4514 g_assert_not_reached ();
4517 #endif /* DISABLE_JIT */