2 * mini.c: The new Mono code generator.
5 * Paolo Molaro (lupus@ximian.com)
6 * Dietmar Maurer (dietmar@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc.
9 * Copyright 2003-2010 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #ifdef HAVE_SYS_TIME_H
26 #include <mono/utils/memcheck.h>
28 #include <mono/metadata/assembly.h>
29 #include <mono/metadata/loader.h>
30 #include <mono/metadata/tabledefs.h>
31 #include <mono/metadata/class.h>
32 #include <mono/metadata/object.h>
33 #include <mono/metadata/tokentype.h>
34 #include <mono/metadata/tabledefs.h>
35 #include <mono/metadata/threads.h>
36 #include <mono/metadata/appdomain.h>
37 #include <mono/metadata/debug-helpers.h>
38 #include "mono/metadata/profiler.h"
39 #include <mono/metadata/profiler-private.h>
40 #include <mono/metadata/mono-config.h>
41 #include <mono/metadata/environment.h>
42 #include <mono/metadata/mono-debug.h>
43 #include <mono/metadata/gc-internals.h>
44 #include <mono/metadata/threads-types.h>
45 #include <mono/metadata/verify.h>
46 #include <mono/metadata/verify-internals.h>
47 #include <mono/metadata/mempool-internals.h>
48 #include <mono/metadata/attach.h>
49 #include <mono/metadata/runtime.h>
50 #include <mono/metadata/attrdefs.h>
51 #include <mono/utils/mono-math.h>
52 #include <mono/utils/mono-compiler.h>
53 #include <mono/utils/mono-counters.h>
54 #include <mono/utils/mono-error-internals.h>
55 #include <mono/utils/mono-logger-internals.h>
56 #include <mono/utils/mono-mmap.h>
57 #include <mono/utils/mono-path.h>
58 #include <mono/utils/mono-tls.h>
59 #include <mono/utils/mono-hwcap.h>
60 #include <mono/utils/dtrace.h>
61 #include <mono/utils/mono-threads.h>
62 #include <mono/utils/mono-threads-coop.h>
63 #include <mono/io-layer/io-layer.h>
66 #include "seq-points.h"
74 #include "jit-icalls.h"
77 #include "debugger-agent.h"
78 #include "llvm-runtime.h"
79 #include "mini-llvm.h"
81 MonoTraceSpec *mono_jit_trace_calls;
82 MonoMethodDesc *mono_inject_async_exc_method;
83 int mono_inject_async_exc_pos;
84 MonoMethodDesc *mono_break_at_bb_method;
85 int mono_break_at_bb_bb_num;
86 gboolean mono_do_x86_stack_align = TRUE;
87 gboolean mono_using_xdebug;
90 static guint32 discarded_code;
91 static double discarded_jit_time;
93 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
94 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
95 static mono_mutex_t jit_mutex;
97 MonoBackend *current_backend;
102 mono_realloc_native_code (MonoCompile *cfg)
104 return g_realloc (cfg->native_code, cfg->code_size);
108 MonoExceptionClause *clause;
109 MonoBasicBlock *basic_block;
114 * mono_emit_unwind_op:
116 * Add an unwind op with the given parameters for the list of unwind ops stored in
120 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
122 MonoUnwindOp *op = (MonoUnwindOp *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
129 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
130 if (cfg->verbose_level > 1) {
133 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
135 case DW_CFA_def_cfa_register:
136 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
138 case DW_CFA_def_cfa_offset:
139 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
142 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
148 #define MONO_INIT_VARINFO(vi,id) do { \
149 (vi)->range.first_use.pos.bid = 0xffff; \
155 * mono_unlink_bblock:
157 * Unlink two basic blocks.
160 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
166 for (i = 0; i < from->out_count; ++i) {
167 if (to == from->out_bb [i]) {
174 for (i = 0; i < from->out_count; ++i) {
175 if (from->out_bb [i] != to)
176 from->out_bb [pos ++] = from->out_bb [i];
178 g_assert (pos == from->out_count - 1);
183 for (i = 0; i < to->in_count; ++i) {
184 if (from == to->in_bb [i]) {
191 for (i = 0; i < to->in_count; ++i) {
192 if (to->in_bb [i] != from)
193 to->in_bb [pos ++] = to->in_bb [i];
195 g_assert (pos == to->in_count - 1);
201 * mono_bblocks_linked:
203 * Return whenever BB1 and BB2 are linked in the CFG.
206 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
210 for (i = 0; i < bb1->out_count; ++i) {
211 if (bb1->out_bb [i] == bb2)
219 mono_find_block_region_notry (MonoCompile *cfg, int offset)
221 MonoMethodHeader *header = cfg->header;
222 MonoExceptionClause *clause;
225 for (i = 0; i < header->num_clauses; ++i) {
226 clause = &header->clauses [i];
227 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
228 (offset < (clause->handler_offset)))
229 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
231 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
232 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
233 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
234 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
235 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
237 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
245 * mono_get_block_region_notry:
247 * Return the region corresponding to REGION, ignoring try clauses nested inside
251 mono_get_block_region_notry (MonoCompile *cfg, int region)
253 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
254 MonoMethodHeader *header = cfg->header;
257 * This can happen if a try clause is nested inside a finally clause.
259 int clause_index = (region >> 8) - 1;
260 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
262 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
269 mono_find_spvar_for_region (MonoCompile *cfg, int region)
271 region = mono_get_block_region_notry (cfg, region);
273 return (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
277 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
281 array [*dfn] = start;
282 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
283 for (i = 0; i < start->out_count; ++i) {
284 if (start->out_bb [i]->dfn)
287 start->out_bb [i]->dfn = *dfn;
288 start->out_bb [i]->df_parent = start;
289 array [*dfn] = start->out_bb [i];
290 df_visit (start->out_bb [i], dfn, array);
295 mono_reverse_branch_op (guint32 opcode)
297 static const int reverse_map [] = {
298 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
299 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
301 static const int reverse_fmap [] = {
302 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
303 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
305 static const int reverse_lmap [] = {
306 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
307 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
309 static const int reverse_imap [] = {
310 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
311 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
314 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
315 opcode = reverse_map [opcode - CEE_BEQ];
316 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
317 opcode = reverse_fmap [opcode - OP_FBEQ];
318 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
319 opcode = reverse_lmap [opcode - OP_LBEQ];
320 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
321 opcode = reverse_imap [opcode - OP_IBEQ];
323 g_assert_not_reached ();
329 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
331 type = mini_get_underlying_type (type);
334 switch (type->type) {
337 return OP_STOREI1_MEMBASE_REG;
340 return OP_STOREI2_MEMBASE_REG;
343 return OP_STOREI4_MEMBASE_REG;
347 case MONO_TYPE_FNPTR:
348 return OP_STORE_MEMBASE_REG;
349 case MONO_TYPE_CLASS:
350 case MONO_TYPE_STRING:
351 case MONO_TYPE_OBJECT:
352 case MONO_TYPE_SZARRAY:
353 case MONO_TYPE_ARRAY:
354 return OP_STORE_MEMBASE_REG;
357 return OP_STOREI8_MEMBASE_REG;
359 return OP_STORER4_MEMBASE_REG;
361 return OP_STORER8_MEMBASE_REG;
362 case MONO_TYPE_VALUETYPE:
363 if (type->data.klass->enumtype) {
364 type = mono_class_enum_basetype (type->data.klass);
367 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
368 return OP_STOREX_MEMBASE;
369 return OP_STOREV_MEMBASE;
370 case MONO_TYPE_TYPEDBYREF:
371 return OP_STOREV_MEMBASE;
372 case MONO_TYPE_GENERICINST:
373 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
374 return OP_STOREX_MEMBASE;
375 type = &type->data.generic_class->container_class->byval_arg;
379 g_assert (mini_type_var_is_vt (type));
380 return OP_STOREV_MEMBASE;
382 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
388 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
390 type = mini_get_underlying_type (type);
392 switch (type->type) {
394 return OP_LOADI1_MEMBASE;
396 return OP_LOADU1_MEMBASE;
398 return OP_LOADI2_MEMBASE;
400 return OP_LOADU2_MEMBASE;
402 return OP_LOADI4_MEMBASE;
404 return OP_LOADU4_MEMBASE;
408 case MONO_TYPE_FNPTR:
409 return OP_LOAD_MEMBASE;
410 case MONO_TYPE_CLASS:
411 case MONO_TYPE_STRING:
412 case MONO_TYPE_OBJECT:
413 case MONO_TYPE_SZARRAY:
414 case MONO_TYPE_ARRAY:
415 return OP_LOAD_MEMBASE;
418 return OP_LOADI8_MEMBASE;
420 return OP_LOADR4_MEMBASE;
422 return OP_LOADR8_MEMBASE;
423 case MONO_TYPE_VALUETYPE:
424 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
425 return OP_LOADX_MEMBASE;
426 case MONO_TYPE_TYPEDBYREF:
427 return OP_LOADV_MEMBASE;
428 case MONO_TYPE_GENERICINST:
429 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
430 return OP_LOADX_MEMBASE;
431 if (mono_type_generic_inst_is_valuetype (type))
432 return OP_LOADV_MEMBASE;
434 return OP_LOAD_MEMBASE;
438 g_assert (cfg->gshared);
439 g_assert (mini_type_var_is_vt (type));
440 return OP_LOADV_MEMBASE;
442 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
448 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
450 type = mini_get_underlying_type (type);
451 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
452 g_assert (mini_type_var_is_vt (type));
455 return mono_type_to_stind (type);
459 mono_op_imm_to_op (int opcode)
463 #if SIZEOF_REGISTER == 4
481 #if SIZEOF_REGISTER == 4
487 #if SIZEOF_REGISTER == 4
493 #if SIZEOF_REGISTER == 4
539 #if SIZEOF_REGISTER == 4
545 #if SIZEOF_REGISTER == 4
564 case OP_ICOMPARE_IMM:
566 case OP_LOCALLOC_IMM:
574 * mono_decompose_op_imm:
576 * Replace the OP_.._IMM INS with its non IMM variant.
579 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
581 int opcode2 = mono_op_imm_to_op (ins->opcode);
584 const char *spec = INS_INFO (ins->opcode);
586 if (spec [MONO_INST_SRC2] == 'l') {
587 dreg = mono_alloc_lreg (cfg);
589 /* Load the 64bit constant using decomposed ops */
590 MONO_INST_NEW (cfg, temp, OP_ICONST);
591 temp->inst_c0 = ins->inst_ls_word;
592 temp->dreg = MONO_LVREG_LS (dreg);
593 mono_bblock_insert_before_ins (bb, ins, temp);
595 MONO_INST_NEW (cfg, temp, OP_ICONST);
596 temp->inst_c0 = ins->inst_ms_word;
597 temp->dreg = MONO_LVREG_MS (dreg);
599 dreg = mono_alloc_ireg (cfg);
601 MONO_INST_NEW (cfg, temp, OP_ICONST);
602 temp->inst_c0 = ins->inst_imm;
606 mono_bblock_insert_before_ins (bb, ins, temp);
609 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
610 ins->opcode = opcode2;
612 if (ins->opcode == OP_LOCALLOC)
617 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
621 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
623 if (vreg >= cfg->vreg_to_inst_len) {
624 MonoInst **tmp = cfg->vreg_to_inst;
625 int size = cfg->vreg_to_inst_len;
627 while (vreg >= cfg->vreg_to_inst_len)
628 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
629 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
631 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
633 cfg->vreg_to_inst [vreg] = inst;
636 #define mono_type_is_long(type) (!(type)->byref && ((mono_type_get_underlying_type (type)->type == MONO_TYPE_I8) || (mono_type_get_underlying_type (type)->type == MONO_TYPE_U8)))
637 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
640 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
643 int num = cfg->num_varinfo;
646 type = mini_get_underlying_type (type);
648 if ((num + 1) >= cfg->varinfo_count) {
649 int orig_count = cfg->varinfo_count;
650 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
651 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
652 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
653 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
656 cfg->stat_allocate_var++;
658 MONO_INST_NEW (cfg, inst, opcode);
660 inst->inst_vtype = type;
661 inst->klass = mono_class_from_mono_type (type);
662 type_to_eval_stack_type (cfg, type, inst);
663 /* if set to 1 the variable is native */
664 inst->backend.is_pinvoke = 0;
667 if (mono_class_has_failure (inst->klass))
668 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
670 if (cfg->compute_gc_maps) {
672 mono_mark_vreg_as_mp (cfg, vreg);
674 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
675 inst->flags |= MONO_INST_GC_TRACK;
676 mono_mark_vreg_as_ref (cfg, vreg);
681 cfg->varinfo [num] = inst;
683 MONO_INIT_VARINFO (&cfg->vars [num], num);
684 MONO_VARINFO (cfg, num)->vreg = vreg;
687 set_vreg_to_inst (cfg, vreg, inst);
689 #if SIZEOF_REGISTER == 4
690 if (mono_arch_is_soft_float ()) {
691 regpair = mono_type_is_long (type) || mono_type_is_float (type);
693 regpair = mono_type_is_long (type);
703 * These two cannot be allocated using create_var_for_vreg since that would
704 * put it into the cfg->varinfo array, confusing many parts of the JIT.
708 * Set flags to VOLATILE so SSA skips it.
711 if (cfg->verbose_level >= 4) {
712 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
715 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
716 if (mono_type_is_float (type))
717 inst->flags = MONO_INST_VOLATILE;
720 /* Allocate a dummy MonoInst for the first vreg */
721 MONO_INST_NEW (cfg, tree, OP_LOCAL);
722 tree->dreg = MONO_LVREG_LS (inst->dreg);
723 if (cfg->opt & MONO_OPT_SSA)
724 tree->flags = MONO_INST_VOLATILE;
726 tree->type = STACK_I4;
727 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
728 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
730 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
732 /* Allocate a dummy MonoInst for the second vreg */
733 MONO_INST_NEW (cfg, tree, OP_LOCAL);
734 tree->dreg = MONO_LVREG_MS (inst->dreg);
735 if (cfg->opt & MONO_OPT_SSA)
736 tree->flags = MONO_INST_VOLATILE;
738 tree->type = STACK_I4;
739 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
740 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
742 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
746 if (cfg->verbose_level > 2)
747 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
752 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
755 type = mini_get_underlying_type (type);
757 if (mono_type_is_long (type))
758 dreg = mono_alloc_dreg (cfg, STACK_I8);
759 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
760 dreg = mono_alloc_dreg (cfg, STACK_R8);
762 /* All the others are unified */
763 dreg = mono_alloc_preg (cfg);
765 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
769 mini_get_int_to_float_spill_area (MonoCompile *cfg)
772 if (!cfg->iconv_raw_var) {
773 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
774 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
776 return cfg->iconv_raw_var;
783 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
785 if (vreg >= cfg->vreg_is_ref_len) {
786 gboolean *tmp = cfg->vreg_is_ref;
787 int size = cfg->vreg_is_ref_len;
789 while (vreg >= cfg->vreg_is_ref_len)
790 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
791 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
793 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
795 cfg->vreg_is_ref [vreg] = TRUE;
799 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
801 if (vreg >= cfg->vreg_is_mp_len) {
802 gboolean *tmp = cfg->vreg_is_mp;
803 int size = cfg->vreg_is_mp_len;
805 while (vreg >= cfg->vreg_is_mp_len)
806 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
807 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
809 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
811 cfg->vreg_is_mp [vreg] = TRUE;
815 type_from_stack_type (MonoInst *ins)
818 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
819 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
820 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
821 case STACK_R8: return &mono_defaults.double_class->byval_arg;
824 * this if used to be commented without any specific reason, but
825 * it breaks #80235 when commented
828 return &ins->klass->this_arg;
830 return &mono_defaults.object_class->this_arg;
832 /* ins->klass may not be set for ldnull.
833 * Also, if we have a boxed valuetype, we want an object lass,
834 * not the valuetype class
836 if (ins->klass && !ins->klass->valuetype)
837 return &ins->klass->byval_arg;
838 return &mono_defaults.object_class->byval_arg;
839 case STACK_VTYPE: return &ins->klass->byval_arg;
841 g_error ("stack type %d to montype not handled\n", ins->type);
847 mono_type_from_stack_type (MonoInst *ins)
849 return type_from_stack_type (ins);
853 * mono_add_ins_to_end:
855 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
858 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
863 MONO_ADD_INS (bb, inst);
867 switch (bb->last_ins->opcode) {
881 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
884 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
885 /* Need to insert the ins before the compare */
886 if (bb->code == bb->last_ins) {
887 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
891 if (bb->code->next == bb->last_ins) {
892 /* Only two instructions */
893 opcode = bb->code->opcode;
895 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM) || (opcode == OP_RCOMPARE)) {
897 mono_bblock_insert_before_ins (bb, bb->code, inst);
899 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
902 opcode = bb->last_ins->prev->opcode;
904 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM) || (opcode == OP_RCOMPARE)) {
906 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
908 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
913 MONO_ADD_INS (bb, inst);
919 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
921 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
922 MonoJumpInfoBBTable *table;
924 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
926 table->table_size = num_blocks;
928 ji->ip.label = label;
929 ji->type = MONO_PATCH_INFO_SWITCH;
930 ji->data.table = table;
931 ji->next = cfg->patch_info;
932 cfg->patch_info = ji;
935 static MonoMethodSignature *
936 mono_get_array_new_va_signature (int arity)
938 static GHashTable *sighash;
939 MonoMethodSignature *res;
944 sighash = g_hash_table_new (NULL, NULL);
946 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
951 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
954 if (ARCH_VARARG_ICALLS)
955 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
956 res->call_convention = MONO_CALL_VARARG;
959 res->call_convention = MONO_CALL_C;
962 res->params [0] = &mono_defaults.int_class->byval_arg;
963 for (i = 0; i < arity; i++)
964 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
966 res->ret = &mono_defaults.object_class->byval_arg;
968 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
975 mono_get_array_new_va_icall (int rank)
977 MonoMethodSignature *esig;
978 char icall_name [256];
980 MonoJitICallInfo *info;
982 /* Need to register the icall so it gets an icall wrapper */
983 sprintf (icall_name, "ves_array_new_va_%d", rank);
986 info = mono_find_jit_icall_by_name (icall_name);
988 esig = mono_get_array_new_va_signature (rank);
989 name = g_strdup (icall_name);
990 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
998 mini_class_is_system_array (MonoClass *klass)
1000 if (klass->parent == mono_defaults.array_class)
1007 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1009 MonoAssembly *assembly = method->klass->image->assembly;
1010 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1012 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1014 return mono_assembly_has_skip_verification (assembly);
1018 * mini_method_verify:
1020 * Verify the method using the verfier.
1022 * Returns true if the method is invalid.
1025 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1028 gboolean is_fulltrust;
1030 if (method->verification_success)
1033 if (!mono_verifier_is_enabled_for_method (method))
1036 /*skip verification implies the assembly must be */
1037 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1039 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1042 for (tmp = res; tmp; tmp = tmp->next) {
1043 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1044 if (info->info.status == MONO_VERIFY_ERROR) {
1046 char *method_name = mono_method_full_name (method, TRUE);
1047 cfg->exception_type = info->exception_type;
1048 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1049 g_free (method_name);
1051 mono_free_verify_list (res);
1054 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1056 char *method_name = mono_method_full_name (method, TRUE);
1057 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1059 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1060 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1061 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1062 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1063 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1064 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", "%s", msg);
1065 if (!mono_error_ok (&cfg->error)) {
1066 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1069 cfg->exception_type = info->exception_type;
1070 cfg->exception_message = msg;
1072 g_free (method_name);
1074 mono_free_verify_list (res);
1078 mono_free_verify_list (res);
1080 method->verification_success = 1;
1084 /*Returns true if something went wrong*/
1086 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1088 MonoMethod *method_definition = method;
1089 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1091 while (method_definition->is_inflated) {
1092 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1093 method_definition = imethod->declaring;
1096 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1100 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1102 if (!domain_jit_info (domain)->dynamic_code_hash)
1103 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1104 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1107 static MonoJitDynamicMethodInfo*
1108 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1110 MonoJitDynamicMethodInfo *res;
1112 if (domain_jit_info (domain)->dynamic_code_hash)
1113 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1121 GList *active, *inactive;
1126 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1128 MonoMethodVar *v1 = (MonoMethodVar*)a;
1129 MonoMethodVar *v2 = (MonoMethodVar*)b;
1133 else if (v1->interval->range && v2->interval->range)
1134 return v1->interval->range->from - v2->interval->range->from;
1135 else if (v1->interval->range)
1142 #define LSCAN_DEBUG(a) do { a; } while (0)
1144 #define LSCAN_DEBUG(a)
1148 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1150 int i, slot, offset, size;
1155 GList *vars = NULL, *l, *unhandled;
1156 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1159 gboolean reuse_slot;
1161 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1163 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1164 vtype_stack_slots = NULL;
1167 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1168 for (i = 0; i < cfg->num_varinfo; ++i)
1171 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1172 inst = cfg->varinfo [i];
1173 vmv = MONO_VARINFO (cfg, i);
1175 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1178 vars = g_list_prepend (vars, vmv);
1181 vars = g_list_sort (vars, compare_by_interval_start_pos_func);
1186 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1187 MonoMethodVar *current = unhandled->data;
1189 if (current->interval->range) {
1190 g_assert (current->interval->range->from >= i);
1191 i = current->interval->range->from;
1198 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1199 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1202 inst = cfg->varinfo [vmv->idx];
1204 t = mono_type_get_underlying_type (inst->inst_vtype);
1205 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1208 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1209 * pinvoke wrappers when they call functions returning structures */
1210 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1211 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1216 size = mini_type_stack_size (t, &ialign);
1219 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1224 if (cfg->disable_reuse_stack_slots)
1227 t = mini_get_underlying_type (t);
1229 case MONO_TYPE_GENERICINST:
1230 if (!mono_type_generic_inst_is_valuetype (t)) {
1231 slot_info = &scalar_stack_slots [t->type];
1235 case MONO_TYPE_VALUETYPE:
1236 if (!vtype_stack_slots)
1237 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1238 for (i = 0; i < nvtypes; ++i)
1239 if (t->data.klass == vtype_stack_slots [i].vtype)
1242 slot_info = &vtype_stack_slots [i];
1244 g_assert (nvtypes < 256);
1245 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1246 slot_info = &vtype_stack_slots [nvtypes];
1249 if (cfg->disable_reuse_ref_stack_slots)
1256 #if SIZEOF_VOID_P == 4
1261 if (cfg->disable_ref_noref_stack_slot_share) {
1262 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1267 case MONO_TYPE_CLASS:
1268 case MONO_TYPE_OBJECT:
1269 case MONO_TYPE_ARRAY:
1270 case MONO_TYPE_SZARRAY:
1271 case MONO_TYPE_STRING:
1272 /* Share non-float stack slots of the same size */
1273 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1274 if (cfg->disable_reuse_ref_stack_slots)
1279 slot_info = &scalar_stack_slots [t->type];
1283 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1287 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1289 if (!current->interval->range) {
1290 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1294 inst->flags |= MONO_INST_IS_DEAD;
1299 pos = current->interval->range->from;
1301 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1302 if (current->interval->range)
1303 LSCAN_DEBUG (mono_linterval_print (current->interval));
1304 LSCAN_DEBUG (printf ("\n"));
1306 /* Check for intervals in active which expired or inactive */
1308 /* FIXME: Optimize this */
1311 for (l = slot_info->active; l != NULL; l = l->next) {
1312 MonoMethodVar *v = (MonoMethodVar*)l->data;
1314 if (v->interval->last_range->to < pos) {
1315 slot_info->active = g_list_delete_link (slot_info->active, l);
1316 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1317 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1321 else if (!mono_linterval_covers (v->interval, pos)) {
1322 slot_info->inactive = g_list_append (slot_info->inactive, v);
1323 slot_info->active = g_list_delete_link (slot_info->active, l);
1324 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1331 /* Check for intervals in inactive which expired or active */
1333 /* FIXME: Optimize this */
1336 for (l = slot_info->inactive; l != NULL; l = l->next) {
1337 MonoMethodVar *v = (MonoMethodVar*)l->data;
1339 if (v->interval->last_range->to < pos) {
1340 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1341 // FIXME: Enabling this seems to cause impossible to debug crashes
1342 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1343 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1347 else if (mono_linterval_covers (v->interval, pos)) {
1348 slot_info->active = g_list_append (slot_info->active, v);
1349 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1350 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1358 * This also handles the case when the variable is used in an
1359 * exception region, as liveness info is not computed there.
1362 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1365 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1366 if (slot_info->slots) {
1367 slot = GPOINTER_TO_INT (slot_info->slots->data);
1369 slot_info->slots = slot_info->slots->next;
1372 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1374 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1380 static int count = 0;
1383 if (count == atoi (g_getenv ("COUNT3")))
1384 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1385 if (count > atoi (g_getenv ("COUNT3")))
1388 mono_print_ins (inst);
1393 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1395 if (inst->flags & MONO_INST_LMF) {
1396 size = sizeof (MonoLMF);
1397 align = sizeof (mgreg_t);
1404 if (slot == 0xffffff) {
1406 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1407 * efficient copying (and to work around the fact that OP_MEMCPY
1408 * and OP_MEMSET ignores alignment).
1410 if (MONO_TYPE_ISSTRUCT (t)) {
1411 align = MAX (align, sizeof (gpointer));
1412 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1417 offset += align - 1;
1418 offset &= ~(align - 1);
1422 offset += align - 1;
1423 offset &= ~(align - 1);
1428 if (*stack_align == 0)
1429 *stack_align = align;
1432 offsets [vmv->idx] = slot;
1435 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1436 if (scalar_stack_slots [i].active)
1437 g_list_free (scalar_stack_slots [i].active);
1439 for (i = 0; i < nvtypes; ++i) {
1440 if (vtype_stack_slots [i].active)
1441 g_list_free (vtype_stack_slots [i].active);
1444 cfg->stat_locals_stack_size += offset;
1446 *stack_size = offset;
1451 * mono_allocate_stack_slots:
1453 * Allocate stack slots for all non register allocated variables using a
1454 * linear scan algorithm.
1455 * Returns: an array of stack offsets.
1456 * STACK_SIZE is set to the amount of stack space needed.
1457 * STACK_ALIGN is set to the alignment needed by the locals area.
1460 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1462 int i, slot, offset, size;
1467 GList *vars = NULL, *l;
1468 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1471 gboolean reuse_slot;
1473 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1474 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1476 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1477 vtype_stack_slots = NULL;
1480 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1481 for (i = 0; i < cfg->num_varinfo; ++i)
1484 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1485 inst = cfg->varinfo [i];
1486 vmv = MONO_VARINFO (cfg, i);
1488 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1491 vars = g_list_prepend (vars, vmv);
1494 vars = mono_varlist_sort (cfg, vars, 0);
1496 *stack_align = sizeof(mgreg_t);
1497 for (l = vars; l; l = l->next) {
1498 vmv = (MonoMethodVar *)l->data;
1499 inst = cfg->varinfo [vmv->idx];
1501 t = mono_type_get_underlying_type (inst->inst_vtype);
1502 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1505 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1506 * pinvoke wrappers when they call functions returning structures */
1507 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1508 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1512 size = mini_type_stack_size (t, &ialign);
1515 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1516 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1518 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1523 if (cfg->disable_reuse_stack_slots)
1526 t = mini_get_underlying_type (t);
1528 case MONO_TYPE_GENERICINST:
1529 if (!mono_type_generic_inst_is_valuetype (t)) {
1530 slot_info = &scalar_stack_slots [t->type];
1534 case MONO_TYPE_VALUETYPE:
1535 if (!vtype_stack_slots)
1536 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1537 for (i = 0; i < nvtypes; ++i)
1538 if (t->data.klass == vtype_stack_slots [i].vtype)
1541 slot_info = &vtype_stack_slots [i];
1543 g_assert (nvtypes < 256);
1544 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1545 slot_info = &vtype_stack_slots [nvtypes];
1548 if (cfg->disable_reuse_ref_stack_slots)
1555 #if SIZEOF_VOID_P == 4
1560 if (cfg->disable_ref_noref_stack_slot_share) {
1561 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1566 case MONO_TYPE_CLASS:
1567 case MONO_TYPE_OBJECT:
1568 case MONO_TYPE_ARRAY:
1569 case MONO_TYPE_SZARRAY:
1570 case MONO_TYPE_STRING:
1571 /* Share non-float stack slots of the same size */
1572 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1573 if (cfg->disable_reuse_ref_stack_slots)
1577 case MONO_TYPE_MVAR:
1578 slot_info = &scalar_stack_slots [t->type];
1581 slot_info = &scalar_stack_slots [t->type];
1586 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1587 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1589 /* expire old intervals in active */
1590 while (slot_info->active) {
1591 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1593 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1596 //printf ("EXPIR %2d %08x %08x C%d R%d\n", amv->idx, amv->range.first_use.abs_pos, amv->range.last_use.abs_pos, amv->spill_costs, amv->reg);
1598 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1599 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1603 * This also handles the case when the variable is used in an
1604 * exception region, as liveness info is not computed there.
1607 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1610 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1611 if (slot_info->slots) {
1612 slot = GPOINTER_TO_INT (slot_info->slots->data);
1614 slot_info->slots = slot_info->slots->next;
1617 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1622 static int count = 0;
1626 if (count == atoi (g_getenv ("COUNT")))
1627 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1628 if (count > atoi (g_getenv ("COUNT")))
1631 mono_print_ins (inst);
1636 if (inst->flags & MONO_INST_LMF) {
1638 * This variable represents a MonoLMF structure, which has no corresponding
1639 * CLR type, so hard-code its size/alignment.
1641 size = sizeof (MonoLMF);
1642 align = sizeof (mgreg_t);
1649 if (slot == 0xffffff) {
1651 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1652 * efficient copying (and to work around the fact that OP_MEMCPY
1653 * and OP_MEMSET ignores alignment).
1655 if (MONO_TYPE_ISSTRUCT (t)) {
1656 align = MAX (align, sizeof (gpointer));
1657 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1659 * Align the size too so the code generated for passing vtypes in
1660 * registers doesn't overwrite random locals.
1662 size = (size + (align - 1)) & ~(align -1);
1667 offset += align - 1;
1668 offset &= ~(align - 1);
1672 offset += align - 1;
1673 offset &= ~(align - 1);
1678 *stack_align = MAX (*stack_align, align);
1681 offsets [vmv->idx] = slot;
1684 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1685 if (scalar_stack_slots [i].active)
1686 g_list_free (scalar_stack_slots [i].active);
1688 for (i = 0; i < nvtypes; ++i) {
1689 if (vtype_stack_slots [i].active)
1690 g_list_free (vtype_stack_slots [i].active);
1693 cfg->stat_locals_stack_size += offset;
1695 *stack_size = offset;
1699 #define EMUL_HIT_SHIFT 3
1700 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1701 /* small hit bitmap cache */
1702 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1703 static short emul_opcode_num = 0;
1704 static short emul_opcode_alloced = 0;
1705 static short *emul_opcode_opcodes;
1706 static MonoJitICallInfo **emul_opcode_map;
1709 mono_find_jit_opcode_emulation (int opcode)
1711 g_assert (opcode >= 0 && opcode <= OP_LAST);
1712 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1714 for (i = 0; i < emul_opcode_num; ++i) {
1715 if (emul_opcode_opcodes [i] == opcode)
1716 return emul_opcode_map [i];
1723 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1725 MonoJitICallInfo *info;
1726 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1728 g_assert (!sig->hasthis);
1729 g_assert (sig->param_count < 3);
1731 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1732 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1734 if (emul_opcode_num >= emul_opcode_alloced) {
1735 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1736 emul_opcode_alloced += incr;
1737 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1738 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1740 emul_opcode_map [emul_opcode_num] = info;
1741 emul_opcode_opcodes [emul_opcode_num] = opcode;
1743 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1747 print_dfn (MonoCompile *cfg)
1755 char *method_name = mono_method_full_name (cfg->method, TRUE);
1756 g_print ("IR code for method %s\n", method_name);
1757 g_free (method_name);
1760 for (i = 0; i < cfg->num_bblocks; ++i) {
1761 bb = cfg->bblocks [i];
1762 /*if (bb->cil_code) {
1763 char* code1, *code2;
1764 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1765 if (bb->last_ins->cil_code)
1766 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1768 code2 = g_strdup ("");
1770 code1 [strlen (code1) - 1] = 0;
1771 code = g_strdup_printf ("%s -> %s", code1, code2);
1775 code = g_strdup ("\n");
1776 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1777 MONO_BB_FOR_EACH_INS (bb, c) {
1778 mono_print_ins_index (-1, c);
1781 g_print ("\tprev:");
1782 for (j = 0; j < bb->in_count; ++j) {
1783 g_print (" BB%d", bb->in_bb [j]->block_num);
1785 g_print ("\t\tsucc:");
1786 for (j = 0; j < bb->out_count; ++j) {
1787 g_print (" BB%d", bb->out_bb [j]->block_num);
1789 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1792 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1795 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1797 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1805 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1807 MONO_ADD_INS (bb, inst);
1811 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1815 bb->code = ins_to_insert;
1817 /* Link with next */
1818 ins_to_insert->next = ins;
1820 ins->prev = ins_to_insert;
1822 if (bb->last_ins == NULL)
1823 bb->last_ins = ins_to_insert;
1825 /* Link with next */
1826 ins_to_insert->next = ins->next;
1828 ins->next->prev = ins_to_insert;
1830 /* Link with previous */
1831 ins->next = ins_to_insert;
1832 ins_to_insert->prev = ins;
1834 if (bb->last_ins == ins)
1835 bb->last_ins = ins_to_insert;
1840 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1845 ins->prev = ins_to_insert;
1846 bb->code = ins_to_insert;
1847 ins_to_insert->next = ins;
1848 if (bb->last_ins == NULL)
1849 bb->last_ins = ins_to_insert;
1851 /* Link with previous */
1853 ins->prev->next = ins_to_insert;
1854 ins_to_insert->prev = ins->prev;
1856 /* Link with next */
1857 ins->prev = ins_to_insert;
1858 ins_to_insert->next = ins;
1860 if (bb->code == ins)
1861 bb->code = ins_to_insert;
1866 * mono_verify_bblock:
1868 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1871 mono_verify_bblock (MonoBasicBlock *bb)
1873 MonoInst *ins, *prev;
1876 for (ins = bb->code; ins; ins = ins->next) {
1877 g_assert (ins->prev == prev);
1881 g_assert (!bb->last_ins->next);
1887 * Perform consistency checks on the JIT data structures and the IR
1890 mono_verify_cfg (MonoCompile *cfg)
1894 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
1895 mono_verify_bblock (bb);
1898 // This will free many fields in cfg to save
1899 // memory. Note that this must be safe to call
1900 // multiple times. It must be idempotent.
1902 mono_empty_compile (MonoCompile *cfg)
1904 mono_free_loop_info (cfg);
1906 // These live in the mempool, and so must be freed
1908 for (GSList *l = cfg->headers_to_free; l; l = l->next) {
1909 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
1911 cfg->headers_to_free = NULL;
1914 //mono_mempool_stats (cfg->mempool);
1915 mono_mempool_destroy (cfg->mempool);
1916 cfg->mempool = NULL;
1919 g_free (cfg->varinfo);
1920 cfg->varinfo = NULL;
1926 mono_regstate_free (cfg->rs);
1932 mono_destroy_compile (MonoCompile *cfg)
1934 mono_empty_compile (cfg);
1937 mono_metadata_free_mh (cfg->header);
1940 g_hash_table_destroy (cfg->spvars);
1942 g_hash_table_destroy (cfg->exvars);
1944 g_list_free (cfg->ldstr_list);
1946 if (cfg->token_info_hash)
1947 g_hash_table_destroy (cfg->token_info_hash);
1949 if (cfg->abs_patches)
1950 g_hash_table_destroy (cfg->abs_patches);
1952 mono_debug_free_method (cfg);
1954 g_free (cfg->varinfo);
1956 g_free (cfg->exception_message);
1961 mono_create_tls_get_offset (MonoCompile *cfg, int offset)
1965 if (!cfg->backend->have_tls_get)
1971 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
1972 ins->dreg = mono_alloc_preg (cfg);
1973 ins->inst_offset = offset;
1978 mini_tls_get_supported (MonoCompile *cfg, MonoTlsKey key)
1980 if (!cfg->backend->have_tls_get)
1983 if (cfg->compile_aot)
1984 return cfg->backend->have_tls_get_reg;
1986 return mini_get_tls_offset (key) != -1;
1990 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
1992 if (!cfg->backend->have_tls_get)
1995 #ifdef HAVE_KW_THREAD
1997 * MONO_THREAD_VAR_OFFSET definitions don't work when loading mono as a
1998 * dynamic library. This means that we need to be conservative and don't
1999 * aot code that contains these tls chunks.
2001 * FIXME Remove HAVE_KW_THREAD altogether and use only pthread since it
2002 * simplifies the code alot.
2005 cfg->disable_aot = TRUE;
2008 * TLS offsets might be different at AOT time, so load them from a GOT slot and
2009 * use a different opcode.
2011 if (cfg->compile_aot) {
2012 if (cfg->backend->have_tls_get_reg) {
2015 EMIT_NEW_TLS_OFFSETCONST (cfg, c, key);
2016 MONO_INST_NEW (cfg, ins, OP_TLS_GET_REG);
2017 ins->dreg = mono_alloc_preg (cfg);
2018 ins->sreg1 = c->dreg;
2025 return mono_create_tls_get_offset (cfg, mini_get_tls_offset (key));
2029 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2031 return mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
2035 mono_get_domain_intrinsic (MonoCompile* cfg)
2037 return mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
2041 mono_get_thread_intrinsic (MonoCompile* cfg)
2043 return mono_create_tls_get (cfg, TLS_KEY_THREAD);
2047 mono_get_lmf_intrinsic (MonoCompile* cfg)
2049 return mono_create_tls_get (cfg, TLS_KEY_LMF);
2053 mono_get_lmf_addr_intrinsic (MonoCompile* cfg)
2055 return mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
2059 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2061 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2065 ji->data.target = target;
2066 ji->next = cfg->patch_info;
2068 cfg->patch_info = ji;
2072 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
2074 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2078 ji->relocation = relocation;
2079 ji->data.target = target;
2080 ji->next = cfg->patch_info;
2082 cfg->patch_info = ji;
2086 mono_remove_patch_info (MonoCompile *cfg, int ip)
2088 MonoJumpInfo **ji = &cfg->patch_info;
2091 if ((*ji)->ip.i == ip)
2094 ji = &((*ji)->next);
2099 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2101 ins->inst_offset = native_offset;
2102 g_ptr_array_add (cfg->seq_points, ins);
2104 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2105 bb->last_seq_point = ins;
2110 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2112 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2115 g_assert (offset == 0);
2117 entry->is_reg = is_reg;
2119 entry->offset = offset;
2123 if (var == cfg->args [0])
2124 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2125 else if (var == cfg->rgctx_var)
2126 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2130 mono_compile_create_vars (MonoCompile *cfg)
2132 MonoMethodSignature *sig;
2133 MonoMethodHeader *header;
2136 header = cfg->header;
2138 sig = mono_method_signature (cfg->method);
2140 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2141 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2142 /* Inhibit optimizations */
2143 cfg->ret->flags |= MONO_INST_VOLATILE;
2145 if (cfg->verbose_level > 2)
2146 g_print ("creating vars\n");
2148 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2151 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2152 cfg->this_arg = cfg->args [0];
2155 for (i = 0; i < sig->param_count; ++i) {
2156 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2159 if (cfg->verbose_level > 2) {
2161 printf ("\treturn : ");
2162 mono_print_ins (cfg->ret);
2166 printf ("\tthis: ");
2167 mono_print_ins (cfg->args [0]);
2170 for (i = 0; i < sig->param_count; ++i) {
2171 printf ("\targ [%d]: ", i);
2172 mono_print_ins (cfg->args [i + sig->hasthis]);
2176 cfg->locals_start = cfg->num_varinfo;
2177 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2179 if (cfg->verbose_level > 2)
2180 g_print ("creating locals\n");
2182 for (i = 0; i < header->num_locals; ++i)
2183 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2185 if (cfg->verbose_level > 2)
2186 g_print ("locals done\n");
2189 if (COMPILE_LLVM (cfg))
2190 mono_llvm_create_vars (cfg);
2192 mono_arch_create_vars (cfg);
2194 mono_arch_create_vars (cfg);
2197 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2198 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2199 lmf_var->flags |= MONO_INST_VOLATILE;
2200 lmf_var->flags |= MONO_INST_LMF;
2201 cfg->lmf_var = lmf_var;
2206 mono_print_code (MonoCompile *cfg, const char* msg)
2210 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2211 mono_print_bb (bb, msg);
2215 mono_postprocess_patches (MonoCompile *cfg)
2217 MonoJumpInfo *patch_info;
2220 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2221 switch (patch_info->type) {
2222 case MONO_PATCH_INFO_ABS: {
2223 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2226 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2230 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2231 /* for these array methods we currently register the same function pointer
2232 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2233 * will return the incorrect one depending on the order they are registered.
2234 * See tests/test-arr.cs
2236 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2237 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2238 patch_info->data.name = info->name;
2242 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2243 if (cfg->abs_patches) {
2244 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2246 patch_info->type = abs_ji->type;
2247 patch_info->data.target = abs_ji->data.target;
2254 case MONO_PATCH_INFO_SWITCH: {
2256 #if defined(__native_client__) && defined(__native_client_codegen__)
2257 /* This memory will leak. */
2258 /* TODO: can we free this when */
2259 /* making the final jump table? */
2260 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2262 if (cfg->method->dynamic) {
2263 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2265 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2269 for (i = 0; i < patch_info->data.table->table_size; i++) {
2270 /* Might be NULL if the switch is eliminated */
2271 if (patch_info->data.table->table [i]) {
2272 g_assert (patch_info->data.table->table [i]->native_offset);
2273 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2278 patch_info->data.table->table = (MonoBasicBlock**)table;
2281 case MONO_PATCH_INFO_METHOD_JUMP: {
2282 MonoJumpList *jlist;
2283 MonoDomain *domain = cfg->domain;
2284 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2286 mono_domain_lock (domain);
2287 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2289 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2290 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2292 jlist->list = g_slist_prepend (jlist->list, ip);
2293 mono_domain_unlock (domain);
2304 mono_codegen (MonoCompile *cfg)
2307 int max_epilog_size;
2309 MonoDomain *code_domain;
2310 guint unwindlen = 0;
2312 if (mono_using_xdebug)
2314 * Recent gdb versions have trouble processing symbol files containing
2315 * overlapping address ranges, so allocate all code from the code manager
2316 * of the root domain. (#666152).
2318 code_domain = mono_get_root_domain ();
2320 code_domain = cfg->domain;
2322 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2323 cfg->spill_count = 0;
2324 /* we reuse dfn here */
2325 /* bb->dfn = bb_count++; */
2327 mono_arch_lowering_pass (cfg, bb);
2329 if (cfg->opt & MONO_OPT_PEEPHOLE)
2330 mono_arch_peephole_pass_1 (cfg, bb);
2332 mono_local_regalloc (cfg, bb);
2334 if (cfg->opt & MONO_OPT_PEEPHOLE)
2335 mono_arch_peephole_pass_2 (cfg, bb);
2337 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2338 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2341 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2342 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2344 code = mono_arch_emit_prolog (cfg);
2346 cfg->code_len = code - cfg->native_code;
2347 cfg->prolog_end = cfg->code_len;
2348 cfg->cfa_reg = cfg->cur_cfa_reg;
2349 cfg->cfa_offset = cfg->cur_cfa_offset;
2351 mono_debug_open_method (cfg);
2353 /* emit code all basic blocks */
2354 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2355 bb->native_offset = cfg->code_len;
2356 bb->real_native_offset = cfg->code_len;
2357 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2358 mono_arch_output_basic_block (cfg, bb);
2359 bb->native_length = cfg->code_len - bb->native_offset;
2361 if (bb == cfg->bb_exit) {
2362 cfg->epilog_begin = cfg->code_len;
2363 mono_arch_emit_epilog (cfg);
2364 cfg->epilog_end = cfg->code_len;
2368 mono_arch_emit_exceptions (cfg);
2370 max_epilog_size = 0;
2372 /* we always allocate code in cfg->domain->code_mp to increase locality */
2373 cfg->code_size = cfg->code_len + max_epilog_size;
2375 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2377 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2378 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2381 if (cfg->method->dynamic) {
2382 /* Allocate the code into a separate memory pool so it can be freed */
2383 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2384 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2385 mono_domain_lock (cfg->domain);
2386 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2387 mono_domain_unlock (cfg->domain);
2389 if (mono_using_xdebug)
2390 /* See the comment for cfg->code_domain */
2391 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2393 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2395 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2398 if (cfg->thunk_area) {
2399 cfg->thunks_offset = cfg->code_size + unwindlen;
2400 cfg->thunks = code + cfg->thunks_offset;
2401 memset (cfg->thunks, 0, cfg->thunk_area);
2405 memcpy (code, cfg->native_code, cfg->code_len);
2406 g_free (cfg->native_code);
2407 cfg->native_code = code;
2408 code = cfg->native_code + cfg->code_len;
2410 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2411 mono_postprocess_patches (cfg);
2413 #ifdef VALGRIND_JIT_REGISTER_MAP
2414 if (valgrind_register){
2415 char* nm = mono_method_full_name (cfg->method, TRUE);
2416 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2421 if (cfg->verbose_level > 0) {
2422 char* nm = mono_method_get_full_name (cfg->method);
2423 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2425 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2430 gboolean is_generic = FALSE;
2432 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2433 mono_class_is_gtd (cfg->method->klass) || mono_class_is_ginst (cfg->method->klass)) {
2438 g_assert (is_generic);
2441 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2442 mono_arch_save_unwind_info (cfg);
2445 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2450 for (ji = cfg->patch_info; ji; ji = ji->next) {
2451 if (cfg->compile_aot) {
2453 case MONO_PATCH_INFO_BB:
2454 case MONO_PATCH_INFO_LABEL:
2457 /* No need to patch these */
2462 if (ji->type == MONO_PATCH_INFO_NONE)
2465 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2466 if (!mono_error_ok (&cfg->error)) {
2467 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2470 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2474 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors, &cfg->error);
2475 if (!is_ok (&cfg->error)) {
2476 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2481 if (cfg->method->dynamic) {
2482 if (mono_using_xdebug)
2483 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2485 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2487 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2489 #if defined(__native_client_codegen__) && defined(__native_client__)
2490 cfg->native_code = code_dest;
2492 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2494 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2496 mono_debug_close_method (cfg);
2498 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2499 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2504 compute_reachable (MonoBasicBlock *bb)
2508 if (!(bb->flags & BB_VISITED)) {
2509 bb->flags |= BB_VISITED;
2510 for (i = 0; i < bb->out_count; ++i)
2511 compute_reachable (bb->out_bb [i]);
2515 static void mono_bb_ordering (MonoCompile *cfg)
2518 /* Depth-first ordering on basic blocks */
2519 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2521 cfg->max_block_num = cfg->num_bblocks;
2523 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2524 if (cfg->num_bblocks != dfn + 1) {
2527 cfg->num_bblocks = dfn + 1;
2529 /* remove unreachable code, because the code in them may be
2530 * inconsistent (access to dead variables for example) */
2531 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2532 bb->flags &= ~BB_VISITED;
2533 compute_reachable (cfg->bb_entry);
2534 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2535 if (bb->flags & BB_EXCEPTION_HANDLER)
2536 compute_reachable (bb);
2537 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2538 if (!(bb->flags & BB_VISITED)) {
2539 if (cfg->verbose_level > 1)
2540 g_print ("found unreachable code in BB%d\n", bb->block_num);
2541 bb->code = bb->last_ins = NULL;
2542 while (bb->out_count)
2543 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2546 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2547 bb->flags &= ~BB_VISITED;
2552 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2555 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2556 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2558 MONO_INST_NEW (cfg, ins, OP_BR);
2559 MONO_ADD_INS (bb, ins);
2560 ins->inst_target_bb = bb->next_bb;
2566 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2569 MonoMethodHeader *header;
2571 MonoJitInfoFlags flags = JIT_INFO_NONE;
2572 int num_clauses, num_holes = 0;
2573 guint32 stack_size = 0;
2575 g_assert (method_to_compile == cfg->method);
2576 header = cfg->header;
2579 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2581 if (cfg->arch_eh_jit_info) {
2582 MonoJitArgumentInfo *arg_info;
2583 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2586 * This cannot be computed during stack walking, as
2587 * mono_arch_get_argument_info () is not signal safe.
2589 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2590 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2593 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2596 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2597 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2599 if (cfg->thunk_area)
2600 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2602 if (cfg->try_block_holes) {
2603 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2604 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2605 MonoExceptionClause *ec = hole->clause;
2606 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2607 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2608 g_assert (clause_last_bb);
2610 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2611 if (clause_last_bb->native_offset != hole_end)
2615 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2616 if (G_UNLIKELY (cfg->verbose_level >= 4))
2617 printf ("Number of try block holes %d\n", num_holes);
2620 if (COMPILE_LLVM (cfg))
2621 num_clauses = cfg->llvm_ex_info_len;
2623 num_clauses = header->num_clauses;
2625 if (cfg->method->dynamic)
2626 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2628 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2629 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2630 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2632 if (COMPILE_LLVM (cfg))
2633 jinfo->from_llvm = TRUE;
2637 MonoGenericJitInfo *gi;
2638 GSList *loclist = NULL;
2640 gi = mono_jit_info_get_generic_jit_info (jinfo);
2643 if (cfg->method->dynamic)
2644 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2646 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2647 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2649 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2650 mini_method_get_context (method_to_compile)->method_inst ||
2651 method_to_compile->klass->valuetype) {
2652 g_assert (cfg->rgctx_var);
2657 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2658 mini_method_get_context (method_to_compile)->method_inst ||
2659 method_to_compile->klass->valuetype) {
2660 inst = cfg->rgctx_var;
2661 if (!COMPILE_LLVM (cfg))
2662 g_assert (inst->opcode == OP_REGOFFSET);
2663 loclist = cfg->rgctx_loclist;
2665 inst = cfg->args [0];
2666 loclist = cfg->this_loclist;
2670 /* Needed to handle async exceptions */
2674 gi->nlocs = g_slist_length (loclist);
2675 if (cfg->method->dynamic)
2676 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2678 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2680 for (l = loclist; l; l = l->next) {
2681 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2686 if (COMPILE_LLVM (cfg)) {
2687 g_assert (cfg->llvm_this_reg != -1);
2688 gi->this_in_reg = 0;
2689 gi->this_reg = cfg->llvm_this_reg;
2690 gi->this_offset = cfg->llvm_this_offset;
2691 } else if (inst->opcode == OP_REGVAR) {
2692 gi->this_in_reg = 1;
2693 gi->this_reg = inst->dreg;
2695 g_assert (inst->opcode == OP_REGOFFSET);
2697 g_assert (inst->inst_basereg == X86_EBP);
2698 #elif defined(TARGET_AMD64)
2699 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2701 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2703 gi->this_in_reg = 0;
2704 gi->this_reg = inst->inst_basereg;
2705 gi->this_offset = inst->inst_offset;
2710 MonoTryBlockHoleTableJitInfo *table;
2713 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2714 table->num_holes = (guint16)num_holes;
2716 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2717 guint32 start_bb_offset;
2718 MonoTryBlockHoleJitInfo *hole;
2719 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2720 MonoExceptionClause *ec = hole_data->clause;
2721 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2722 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2723 g_assert (clause_last_bb);
2725 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2726 if (clause_last_bb->native_offset == hole_end)
2729 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2730 hole = &table->holes [i++];
2731 hole->clause = hole_data->clause - &header->clauses [0];
2732 hole->offset = (guint32)hole_data->start_offset;
2733 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2735 if (G_UNLIKELY (cfg->verbose_level >= 4))
2736 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2738 g_assert (i == num_holes);
2741 if (jinfo->has_arch_eh_info) {
2742 MonoArchEHJitInfo *info;
2744 info = mono_jit_info_get_arch_eh_info (jinfo);
2746 info->stack_size = stack_size;
2749 if (cfg->thunk_area) {
2750 MonoThunkJitInfo *info;
2752 info = mono_jit_info_get_thunk_info (jinfo);
2753 info->thunks_offset = cfg->thunks_offset;
2754 info->thunks_size = cfg->thunk_area;
2757 if (COMPILE_LLVM (cfg)) {
2759 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2760 } else if (header->num_clauses) {
2763 for (i = 0; i < header->num_clauses; i++) {
2764 MonoExceptionClause *ec = &header->clauses [i];
2765 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2766 MonoBasicBlock *tblock;
2767 MonoInst *exvar, *spvar;
2769 ei->flags = ec->flags;
2771 if (G_UNLIKELY (cfg->verbose_level >= 4))
2772 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);
2775 * The spvars are needed by mono_arch_install_handler_block_guard ().
2777 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2780 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2781 spvar = mono_find_spvar_for_region (cfg, region);
2783 ei->exvar_offset = spvar->inst_offset;
2785 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2786 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2789 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2790 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2792 ei->data.filter = cfg->native_code + tblock->native_offset;
2794 ei->data.catch_class = ec->data.catch_class;
2797 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2799 g_assert (tblock->native_offset);
2800 ei->try_start = cfg->native_code + tblock->native_offset;
2801 if (tblock->extend_try_block) {
2803 * Extend the try block backwards to include parts of the previous call
2806 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
2808 if (ec->try_offset + ec->try_len < header->code_size)
2809 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2811 tblock = cfg->bb_exit;
2812 if (G_UNLIKELY (cfg->verbose_level >= 4))
2813 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
2815 if (!tblock->native_offset) {
2817 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2818 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2819 if (bb && bb->native_offset) {
2825 ei->try_end = cfg->native_code + tblock->native_offset;
2826 g_assert (tblock->native_offset);
2827 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2829 ei->handler_start = cfg->native_code + tblock->native_offset;
2831 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2832 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2833 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2834 if (hole->clause == ec && hole_end == ei->try_end) {
2835 if (G_UNLIKELY (cfg->verbose_level >= 4))
2836 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2838 ei->try_end = cfg->native_code + hole->start_offset;
2843 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2845 if (ec->handler_offset + ec->handler_len < header->code_size) {
2846 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2847 if (tblock->native_offset) {
2848 end_offset = tblock->native_offset;
2852 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2853 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2854 if (bb && bb->native_offset) {
2859 end_offset = tblock->native_offset + tblock->native_length;
2862 end_offset = cfg->epilog_begin;
2864 ei->data.handler_end = cfg->native_code + end_offset;
2869 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2871 for (i = 0; i < jinfo->num_clauses; i++) {
2872 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2873 int start = (guint8*)ei->try_start - cfg->native_code;
2874 int end = (guint8*)ei->try_end - cfg->native_code;
2875 int handler = (guint8*)ei->handler_start - cfg->native_code;
2876 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2878 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2882 if (cfg->encoded_unwind_ops) {
2883 /* Generated by LLVM */
2884 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2885 g_free (cfg->encoded_unwind_ops);
2886 } else if (cfg->unwind_ops) {
2888 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2889 guint32 unwind_desc;
2891 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2893 if (cfg->has_unwind_info_for_epilog) {
2894 MonoArchEHJitInfo *info;
2896 info = mono_jit_info_get_arch_eh_info (jinfo);
2898 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2900 jinfo->unwind_info = unwind_desc;
2901 g_free (unwind_info);
2903 jinfo->unwind_info = cfg->used_int_regs;
2909 /* Return whenever METHOD is a gsharedvt method */
2911 is_gsharedvt_method (MonoMethod *method)
2913 MonoGenericContext *context;
2914 MonoGenericInst *inst;
2917 if (!method->is_inflated)
2919 context = mono_method_get_context (method);
2920 inst = context->class_inst;
2922 for (i = 0; i < inst->type_argc; ++i)
2923 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2926 inst = context->method_inst;
2928 for (i = 0; i < inst->type_argc; ++i)
2929 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2936 is_open_method (MonoMethod *method)
2938 MonoGenericContext *context;
2940 if (!method->is_inflated)
2942 context = mono_method_get_context (method);
2943 if (context->class_inst && context->class_inst->is_open)
2945 if (context->method_inst && context->method_inst->is_open)
2951 mono_insert_nop_in_empty_bb (MonoCompile *cfg)
2954 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2958 MONO_INST_NEW (cfg, nop, OP_NOP);
2959 MONO_ADD_INS (bb, nop);
2963 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
2965 MonoInst *poll_addr, *ins;
2967 if (cfg->disable_gc_safe_points)
2970 if (cfg->verbose_level > 1)
2971 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
2973 #if defined(__native_client_codegen__)
2974 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
2976 g_assert (mono_threads_is_coop_enabled ());
2977 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
2980 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
2981 ins->sreg1 = poll_addr->dreg;
2983 if (bblock->flags & BB_EXCEPTION_HANDLER) {
2984 MonoInst *eh_op = bblock->code;
2986 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
2989 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
2990 // skip all EH relateds ops
2991 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
2993 next_eh_op = eh_op->next;
2997 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
2998 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2999 } else if (bblock == cfg->bb_entry) {
3000 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
3001 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3004 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
3005 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3010 This code inserts safepoints into managed code at important code paths.
3013 -the first basic block
3014 -landing BB for exception handlers
3019 mono_insert_safepoints (MonoCompile *cfg)
3023 #if !defined(__native_client_codegen__)
3024 if (!mono_threads_is_coop_enabled ())
3028 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3029 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3030 #if defined(__native_client__) || defined(__native_client_codegen__)
3031 gpointer poll_func = &mono_nacl_gc;
3033 g_assert (mono_threads_is_coop_enabled ());
3034 gpointer poll_func = &mono_threads_state_poll;
3037 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
3038 if (cfg->verbose_level > 1)
3039 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
3044 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
3045 if (cfg->verbose_level > 1)
3046 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
3050 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3051 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3053 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
3054 (info->d.icall.func == mono_thread_interruption_checkpoint ||
3055 info->d.icall.func == mono_threads_exit_gc_safe_region_unbalanced)) {
3056 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
3057 if (cfg->verbose_level > 1)
3058 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
3063 if (cfg->verbose_level > 1)
3064 printf ("INSERTING SAFEPOINTS\n");
3065 if (cfg->verbose_level > 2)
3066 mono_print_code (cfg, "BEFORE SAFEPOINTS");
3068 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3069 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
3070 mono_create_gc_safepoint (cfg, bb);
3073 if (cfg->verbose_level > 2)
3074 mono_print_code (cfg, "AFTER SAFEPOINTS");
3080 mono_insert_branches_between_bblocks (MonoCompile *cfg)
3084 /* Add branches between non-consecutive bblocks */
3085 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3086 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3087 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3088 /* we are careful when inverting, since bugs like #59580
3089 * could show up when dealing with NaNs.
3091 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3092 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3093 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3094 bb->last_ins->inst_false_bb = tmp;
3096 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3098 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3099 inst->opcode = OP_BR;
3100 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3101 mono_bblock_add_inst (bb, inst);
3106 if (cfg->verbose_level >= 4) {
3107 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3108 MonoInst *tree = bb->code;
3109 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3112 for (; tree; tree = tree->next) {
3113 mono_print_ins_index (-1, tree);
3119 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3120 bb->max_vreg = cfg->next_vreg;
3125 init_backend (MonoBackend *backend)
3127 #ifdef MONO_ARCH_NEED_GOT_VAR
3128 backend->need_got_var = 1;
3130 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
3131 backend->have_card_table_wb = 1;
3133 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3134 backend->have_op_generic_class_init = 1;
3136 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3137 backend->emulate_mul_div = 1;
3139 #ifdef MONO_ARCH_EMULATE_DIV
3140 backend->emulate_div = 1;
3142 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3143 backend->emulate_long_shift_opts = 1;
3145 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3146 backend->have_objc_get_selector = 1;
3148 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE
3149 backend->have_generalized_imt_trampoline = 1;
3151 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3152 backend->gshared_supported = 1;
3154 if (MONO_ARCH_HAVE_TLS_GET)
3155 backend->have_tls_get = 1;
3156 #ifdef MONO_ARCH_HAVE_TLS_GET_REG
3157 backend->have_tls_get_reg = 1;
3159 if (MONO_ARCH_USE_FPSTACK)
3160 backend->use_fpstack = 1;
3161 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3162 backend->have_liverange_ops = 1;
3164 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3165 backend->have_op_tail_call = 1;
3167 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3168 backend->monitor_enter_adjustment = 1;
3170 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3172 #if defined(__mono_ilp32__)
3175 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3176 backend->have_dummy_init = 1;
3178 #ifdef MONO_ARCH_NEED_DIV_CHECK
3179 backend->need_div_check = 1;
3181 #ifdef NO_UNALIGNED_ACCESS
3182 backend->no_unaligned_access = 1;
3184 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3185 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3187 #ifdef MONO_ARCH_NO_DIV_WITH_MUL
3188 backend->disable_div_with_mul = 1;
3193 * mini_method_compile:
3194 * @method: the method to compile
3195 * @opts: the optimization flags to use
3196 * @domain: the domain where the method will be compiled in
3197 * @flags: compilation flags
3198 * @parts: debug flag
3200 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3201 * field in the returned struct to see if compilation succeded.
3204 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3206 MonoMethodHeader *header;
3207 MonoMethodSignature *sig;
3210 int i, code_size_ratio;
3211 gboolean try_generic_shared, try_llvm = FALSE;
3212 MonoMethod *method_to_compile, *method_to_register;
3213 gboolean method_is_gshared = FALSE;
3214 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3215 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3216 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3217 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3218 gboolean gsharedvt_method = FALSE;
3220 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3222 static gboolean verbose_method_inited;
3223 static const char *verbose_method_name;
3225 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3226 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3227 mono_profiler_method_jit (method);
3228 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3229 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3231 gsharedvt_method = is_gsharedvt_method (method);
3234 * In AOT mode, method can be the following:
3235 * - a gsharedvt method.
3236 * - a method inflated with type parameters. This is for ref/partial sharing.
3237 * - a method inflated with concrete types.
3240 if (is_open_method (method)) {
3241 try_generic_shared = TRUE;
3242 method_is_gshared = TRUE;
3244 try_generic_shared = FALSE;
3246 g_assert (opts & MONO_OPT_GSHARED);
3248 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3249 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3250 if (mini_is_gsharedvt_sharable_method (method)) {
3252 if (!mono_debug_count ())
3253 try_generic_shared = FALSE;
3259 if (try_generic_shared && !mono_debug_count ())
3260 try_generic_shared = FALSE;
3263 if (opts & MONO_OPT_GSHARED) {
3264 if (try_generic_shared)
3265 mono_stats.generics_sharable_methods++;
3266 else if (mono_method_is_generic_impl (method))
3267 mono_stats.generics_unsharable_methods++;
3271 try_llvm = mono_use_llvm || llvm;
3275 if (method_is_gshared) {
3276 method_to_compile = method;
3278 if (try_generic_shared) {
3279 method_to_compile = mini_get_shared_method (method);
3280 g_assert (method_to_compile);
3282 method_to_compile = method;
3286 cfg = g_new0 (MonoCompile, 1);
3287 cfg->method = method_to_compile;
3288 cfg->mempool = mono_mempool_new ();
3290 cfg->prof_options = mono_profiler_get_events ();
3291 cfg->run_cctors = run_cctors;
3292 cfg->domain = domain;
3293 cfg->verbose_level = mini_verbose;
3294 cfg->compile_aot = compile_aot;
3295 cfg->full_aot = full_aot;
3296 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3297 cfg->skip_visibility = method->skip_visibility;
3298 cfg->orig_method = method;
3299 cfg->gen_seq_points = !debug_options.no_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3300 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3301 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3302 cfg->backend = current_backend;
3304 #ifdef PLATFORM_ANDROID
3305 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3306 /* FIXME: Why is this needed */
3307 cfg->gen_seq_points = FALSE;
3308 cfg->gen_sdb_seq_points = FALSE;
3311 if (cfg->method->wrapper_type == MONO_WRAPPER_ALLOC) {
3312 /* We can't have seq points inside gc critical regions */
3313 cfg->gen_seq_points = FALSE;
3314 cfg->gen_sdb_seq_points = FALSE;
3316 /* coop / nacl requires loop detection to happen */
3317 #if defined(__native_client_codegen__)
3318 cfg->opt |= MONO_OPT_LOOP;
3320 if (mono_threads_is_coop_enabled ())
3321 cfg->opt |= MONO_OPT_LOOP;
3323 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3324 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3325 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3326 cfg->disable_direct_icalls = disable_direct_icalls;
3327 cfg->direct_pinvoke = (flags & JIT_FLAG_DIRECT_PINVOKE) != 0;
3328 if (try_generic_shared)
3329 cfg->gshared = TRUE;
3330 cfg->compile_llvm = try_llvm;
3331 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3332 if (cfg->compile_aot)
3333 cfg->method_index = aot_method_index;
3336 if (!mono_debug_count ())
3337 cfg->opt &= ~MONO_OPT_FLOAT32;
3340 cfg->opt &= ~MONO_OPT_SIMD;
3341 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3342 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3344 if (cfg->gen_seq_points)
3345 cfg->seq_points = g_ptr_array_new ();
3346 mono_error_init (&cfg->error);
3348 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || mono_class_is_gtd (method->klass) || method_is_gshared)) {
3349 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3353 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3354 MonoMethodInflated *inflated;
3355 MonoGenericContext *context;
3357 if (gsharedvt_method) {
3358 g_assert (method->is_inflated);
3359 inflated = (MonoMethodInflated*)method;
3360 context = &inflated->context;
3362 /* We are compiling a gsharedvt method directly */
3363 g_assert (compile_aot);
3365 g_assert (method_to_compile->is_inflated);
3366 inflated = (MonoMethodInflated*)method_to_compile;
3367 context = &inflated->context;
3370 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3371 cfg->gsctx_context = context;
3373 cfg->gsharedvt = TRUE;
3374 if (!cfg->llvm_only) {
3375 cfg->disable_llvm = TRUE;
3376 cfg->exception_message = g_strdup ("gsharedvt");
3381 method_to_register = method_to_compile;
3383 g_assert (method == method_to_compile);
3384 method_to_register = method;
3386 cfg->method_to_register = method_to_register;
3388 mono_error_init (&err);
3389 sig = mono_method_signature_checked (cfg->method, &err);
3391 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3392 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3393 mono_error_cleanup (&err);
3394 if (MONO_METHOD_COMPILE_END_ENABLED ())
3395 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3399 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3401 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3402 if (MONO_METHOD_COMPILE_END_ENABLED ())
3403 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3409 static gboolean inited;
3415 * Check for methods which cannot be compiled by LLVM early, to avoid
3416 * the extra compilation pass.
3418 if (COMPILE_LLVM (cfg)) {
3419 mono_llvm_check_method_supported (cfg);
3420 if (cfg->disable_llvm) {
3421 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3422 //nm = mono_method_full_name (cfg->method, TRUE);
3423 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3426 if (cfg->llvm_only) {
3427 g_free (cfg->exception_message);
3428 cfg->disable_aot = TRUE;
3431 mono_destroy_compile (cfg);
3433 goto restart_compile;
3439 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3440 if (debug_options.mdb_optimizations) {
3441 cfg->disable_reuse_registers = TRUE;
3442 cfg->disable_reuse_stack_slots = TRUE;
3444 * This decreases the change the debugger will read registers/stack slots which are
3445 * not yet initialized.
3447 cfg->disable_initlocals_opt = TRUE;
3449 cfg->extend_live_ranges = TRUE;
3451 /* The debugger needs all locals to be on the stack or in a global register */
3452 cfg->disable_vreg_to_lvreg = TRUE;
3454 /* Don't remove unused variables when running inside the debugger since the user
3455 * may still want to view them. */
3456 cfg->disable_deadce_vars = TRUE;
3458 cfg->opt &= ~MONO_OPT_DEADCE;
3459 cfg->opt &= ~MONO_OPT_INLINE;
3460 cfg->opt &= ~MONO_OPT_COPYPROP;
3461 cfg->opt &= ~MONO_OPT_CONSPROP;
3463 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3464 cfg->disable_out_of_line_bblocks = TRUE;
3467 if (mono_using_xdebug) {
3469 * Make each variable use its own register/stack slot and extend
3470 * their liveness to cover the whole method, making them displayable
3471 * in gdb even after they are dead.
3473 cfg->disable_reuse_registers = TRUE;
3474 cfg->disable_reuse_stack_slots = TRUE;
3475 cfg->extend_live_ranges = TRUE;
3476 cfg->compute_precise_live_ranges = TRUE;
3479 mini_gc_init_cfg (cfg);
3481 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
3482 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3484 /* These wrappers are using linkonce linkage, so they can't access GOT slots */
3485 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) {
3486 cfg->disable_gc_safe_points = TRUE;
3487 /* This is safe, these wrappers only store to the stack */
3488 cfg->gen_write_barriers = FALSE;
3492 if (COMPILE_LLVM (cfg)) {
3493 cfg->opt |= MONO_OPT_ABCREM;
3496 if (!verbose_method_inited) {
3497 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3498 verbose_method_inited = TRUE;
3500 if (verbose_method_name) {
3501 const char *name = verbose_method_name;
3503 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3504 MonoMethodDesc *desc;
3506 desc = mono_method_desc_new (name, TRUE);
3507 if (mono_method_desc_full_match (desc, cfg->method)) {
3508 cfg->verbose_level = 4;
3510 mono_method_desc_free (desc);
3512 if (strcmp (cfg->method->name, name) == 0)
3513 cfg->verbose_level = 4;
3517 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3519 if (cfg->verbose_level > 0) {
3522 method_name = mono_method_get_full_name (method);
3523 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3525 if (COMPILE_LLVM (cfg))
3526 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3527 else if (cfg->gsharedvt)
3528 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3529 else if (cfg->gshared)
3530 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3532 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3534 g_free (method_name);
3537 if (cfg->opt & MONO_OPT_ABCREM)
3538 cfg->opt |= MONO_OPT_SSA;
3540 cfg->rs = mono_regstate_new ();
3541 cfg->next_vreg = cfg->rs->next_vreg;
3543 /* FIXME: Fix SSA to handle branches inside bblocks */
3544 if (cfg->opt & MONO_OPT_SSA)
3545 cfg->enable_extended_bblocks = FALSE;
3548 * FIXME: This confuses liveness analysis because variables which are assigned after
3549 * a branch inside a bblock become part of the kill set, even though the assignment
3550 * might not get executed. This causes the optimize_initlocals pass to delete some
3551 * assignments which are needed.
3552 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3555 //cfg->enable_extended_bblocks = TRUE;
3557 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3558 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3559 if (mini_get_debug_options ()->break_on_unverified)
3565 * create MonoInst* which represents arguments and local variables
3567 mono_compile_create_vars (cfg);
3569 mono_cfg_dump_create_context (cfg);
3570 mono_cfg_dump_begin_group (cfg);
3572 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));
3573 mono_cfg_dump_ir (cfg, "method-to-ir");
3575 if (cfg->gdump_ctx != NULL) {
3576 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3577 mono_insert_nop_in_empty_bb (cfg);
3578 mono_cfg_dump_ir (cfg, "mono_insert_nop_in_empty_bb");
3582 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3584 if (MONO_METHOD_COMPILE_END_ENABLED ())
3585 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3588 mono_destroy_compile (cfg);
3589 try_generic_shared = FALSE;
3590 goto restart_compile;
3592 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3594 if (MONO_METHOD_COMPILE_END_ENABLED ())
3595 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3596 /* cfg contains the details of the failure, so let the caller cleanup */
3600 cfg->stat_basic_blocks += cfg->num_bblocks;
3602 if (COMPILE_LLVM (cfg)) {
3605 /* The IR has to be in SSA form for LLVM */
3606 cfg->opt |= MONO_OPT_SSA;
3610 // Allow SSA on the result value
3611 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3613 // Add an explicit return instruction referencing the return value
3614 MONO_INST_NEW (cfg, ins, OP_SETRET);
3615 ins->sreg1 = cfg->ret->dreg;
3617 MONO_ADD_INS (cfg->bb_exit, ins);
3620 cfg->opt &= ~MONO_OPT_LINEARS;
3623 cfg->opt &= ~MONO_OPT_BRANCH;
3626 /* todo: remove code when we have verified that the liveness for try/catch blocks
3630 * Currently, this can't be commented out since exception blocks are not
3631 * processed during liveness analysis.
3632 * It is also needed, because otherwise the local optimization passes would
3633 * delete assignments in cases like this:
3635 * <something which throws>
3637 * This also allows SSA to be run on methods containing exception clauses, since
3638 * SSA will ignore variables marked VOLATILE.
3640 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3641 mono_cfg_dump_ir (cfg, "liveness_handle_exception_clauses");
3643 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3644 mono_cfg_dump_ir (cfg, "handle_out_of_line_bblock");
3646 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3648 if (!COMPILE_LLVM (cfg)) {
3649 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3650 mono_cfg_dump_ir (cfg, "decompose_long_opts");
3653 /* Should be done before branch opts */
3654 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP)) {
3655 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3656 mono_cfg_dump_ir (cfg, "local_cprop");
3659 if (cfg->flags & MONO_CFG_HAS_TYPE_CHECK) {
3660 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_typechecks, mono_decompose_typechecks (cfg));
3661 if (cfg->gdump_ctx != NULL) {
3662 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3663 mono_insert_nop_in_empty_bb (cfg);
3665 mono_cfg_dump_ir (cfg, "decompose_typechecks");
3669 * Should be done after cprop which can do strength reduction on
3670 * some of these ops, after propagating immediates.
3672 if (cfg->has_emulated_ops) {
3673 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3674 mono_cfg_dump_ir (cfg, "local_emulate_ops");
3677 if (cfg->opt & MONO_OPT_BRANCH) {
3678 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3679 mono_cfg_dump_ir (cfg, "optimize_branches");
3682 /* This must be done _before_ global reg alloc and _after_ decompose */
3683 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3684 mono_cfg_dump_ir (cfg, "handle_global_vregs");
3685 if (cfg->opt & MONO_OPT_DEADCE) {
3686 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3687 mono_cfg_dump_ir (cfg, "local_deadce");
3689 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS) {
3690 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3691 mono_cfg_dump_ir (cfg, "local_alias_analysis");
3693 /* Disable this for LLVM to make the IR easier to handle */
3694 if (!COMPILE_LLVM (cfg)) {
3695 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3696 mono_cfg_dump_ir (cfg, "if_conversion");
3699 mono_threads_safepoint ();
3701 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3702 mono_cfg_dump_ir (cfg, "bb_ordering");
3704 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3706 * we disable some optimizations if there are too many variables
3707 * because JIT time may become too expensive. The actual number needs
3708 * to be tweaked and eventually the non-linear algorithms should be fixed.
3710 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3711 cfg->disable_ssa = TRUE;
3714 if (cfg->opt & MONO_OPT_LOOP) {
3715 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3716 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3719 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3720 mono_cfg_dump_ir (cfg, "insert_safepoints");
3722 /* after method_to_ir */
3724 if (MONO_METHOD_COMPILE_END_ENABLED ())
3725 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3730 if (header->num_clauses)
3731 cfg->disable_ssa = TRUE;
3734 //#define DEBUGSSA "logic_run"
3735 //#define DEBUGSSA_CLASS "Tests"
3738 if (!cfg->disable_ssa) {
3739 mono_local_cprop (cfg);
3742 mono_ssa_compute (cfg);
3746 if (cfg->opt & MONO_OPT_SSA) {
3747 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3749 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3750 mono_cfg_dump_ir (cfg, "ssa_compute");
3753 if (cfg->verbose_level >= 2) {
3760 /* after SSA translation */
3762 if (MONO_METHOD_COMPILE_END_ENABLED ())
3763 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3767 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3768 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3770 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3771 mono_cfg_dump_ir (cfg, "ssa_cprop");
3777 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3778 //mono_ssa_strength_reduction (cfg);
3780 if (cfg->opt & MONO_OPT_DEADCE) {
3781 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3782 mono_cfg_dump_ir (cfg, "ssa_deadce");
3785 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM)) {
3786 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3787 mono_cfg_dump_ir (cfg, "perform_abc_removal");
3790 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3791 mono_cfg_dump_ir (cfg, "ssa_remove");
3792 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3793 mono_cfg_dump_ir (cfg, "local_cprop2");
3794 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3795 mono_cfg_dump_ir (cfg, "handle_global_vregs2");
3796 if (cfg->opt & MONO_OPT_DEADCE) {
3797 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3798 mono_cfg_dump_ir (cfg, "local_deadce2");
3801 if (cfg->opt & MONO_OPT_BRANCH) {
3802 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3803 mono_cfg_dump_ir (cfg, "optimize_branches2");
3808 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3809 mono_ssa_loop_invariant_code_motion (cfg);
3810 mono_cfg_dump_ir (cfg, "loop_invariant_code_motion");
3811 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3812 if (cfg->opt & MONO_OPT_ABCREM) {
3813 mono_perform_abc_removal (cfg);
3814 mono_cfg_dump_ir (cfg, "abc_removal");
3818 /* after SSA removal */
3820 if (MONO_METHOD_COMPILE_END_ENABLED ())
3821 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3825 if (cfg->llvm_only && cfg->gsharedvt)
3826 mono_ssa_remove_gsharedvt (cfg);
3828 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3829 if (COMPILE_SOFT_FLOAT (cfg))
3830 mono_decompose_soft_float (cfg);
3832 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3833 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS) {
3834 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3835 mono_cfg_dump_ir (cfg, "decompose_array_access_opts");
3839 #ifndef MONO_ARCH_GOT_REG
3844 g_assert (cfg->got_var_allocated);
3847 * Allways allocate the GOT var to a register, because keeping it
3848 * in memory will increase the number of live temporaries in some
3849 * code created by inssel.brg, leading to the well known spills+
3850 * branches problem. Testcase: mcs crash in
3851 * System.MonoCustomAttrs:GetCustomAttributes.
3853 #ifdef MONO_ARCH_GOT_REG
3854 got_reg = MONO_ARCH_GOT_REG;
3856 regs = mono_arch_get_global_int_regs (cfg);
3858 got_reg = GPOINTER_TO_INT (regs->data);
3861 cfg->got_var->opcode = OP_REGVAR;
3862 cfg->got_var->dreg = got_reg;
3863 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3867 * Have to call this again to process variables added since the first call.
3869 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3871 if (cfg->opt & MONO_OPT_LINEARS) {
3872 GList *vars, *regs, *l;
3874 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3875 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3876 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3877 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3879 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3880 regs = mono_arch_get_global_int_regs (cfg);
3881 /* Remove the reg reserved for holding the GOT address */
3883 for (l = regs; l; l = l->next) {
3884 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3885 regs = g_list_delete_link (regs, l);
3890 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
3891 mono_cfg_dump_ir (cfg, "linear_scan");
3895 //mono_print_code (cfg, "");
3899 /* variables are allocated after decompose, since decompose could create temps */
3900 if (!COMPILE_LLVM (cfg)) {
3901 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
3902 mono_cfg_dump_ir (cfg, "arch_allocate_vars");
3903 if (cfg->exception_type)
3908 mono_allocate_gsharedvt_vars (cfg);
3910 if (!COMPILE_LLVM (cfg)) {
3911 gboolean need_local_opts;
3912 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
3913 mono_cfg_dump_ir (cfg, "spill_global_vars");
3915 if (need_local_opts || cfg->compile_aot) {
3916 /* To optimize code created by spill_global_vars */
3917 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
3918 if (cfg->opt & MONO_OPT_DEADCE)
3919 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
3920 mono_cfg_dump_ir (cfg, "needs_local_opts");
3924 mono_insert_branches_between_bblocks (cfg);
3926 if (COMPILE_LLVM (cfg)) {
3930 /* The IR has to be in SSA form for LLVM */
3931 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3932 cfg->exception_message = g_strdup ("SSA disabled.");
3933 cfg->disable_llvm = TRUE;
3936 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3937 mono_decompose_array_access_opts (cfg);
3939 if (!cfg->disable_llvm)
3940 mono_llvm_emit_method (cfg);
3941 if (cfg->disable_llvm) {
3942 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3943 //nm = mono_method_full_name (cfg->method, TRUE);
3944 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3947 if (cfg->llvm_only) {
3948 cfg->disable_aot = TRUE;
3951 mono_destroy_compile (cfg);
3953 goto restart_compile;
3956 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3957 nm = mono_method_full_name (cfg->method, TRUE);
3958 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3960 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3965 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
3966 mono_cfg_dump_ir (cfg, "codegen");
3967 if (cfg->exception_type)
3971 if (COMPILE_LLVM (cfg))
3972 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3974 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3976 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
3978 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3979 if (cfg->extend_live_ranges) {
3980 /* Extend live ranges to cover the whole method */
3981 for (i = 0; i < cfg->num_varinfo; ++i)
3982 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3986 if (!cfg->compile_aot)
3987 mono_save_xdebug_info (cfg);
3989 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
3991 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
3993 if (cfg->verbose_level >= 2) {
3994 char *id = mono_method_full_name (cfg->method, FALSE);
3995 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3999 if (!cfg->compile_aot) {
4000 mono_domain_lock (cfg->domain);
4001 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
4003 if (cfg->method->dynamic)
4004 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
4005 mono_domain_unlock (cfg->domain);
4010 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
4013 /* collect statistics */
4014 #ifndef DISABLE_PERFCOUNTERS
4015 mono_perfcounters->jit_methods++;
4016 mono_perfcounters->jit_bytes += header->code_size;
4018 mono_jit_stats.allocated_code_size += cfg->code_len;
4019 code_size_ratio = cfg->code_len;
4020 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
4021 mono_jit_stats.biggest_method_size = code_size_ratio;
4022 g_free (mono_jit_stats.biggest_method);
4023 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4025 code_size_ratio = (code_size_ratio * 100) / header->code_size;
4026 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
4027 mono_jit_stats.max_code_size_ratio = code_size_ratio;
4028 g_free (mono_jit_stats.max_ratio_method);
4029 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4031 mono_jit_stats.native_code_size += cfg->code_len;
4033 if (MONO_METHOD_COMPILE_END_ENABLED ())
4034 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4036 mono_cfg_dump_close_group (cfg);
4042 mini_class_has_reference_variant_generic_argument (MonoCompile *cfg, MonoClass *klass, int context_used)
4045 MonoGenericContainer *container;
4046 MonoGenericInst *ginst;
4048 if (mono_class_is_ginst (klass)) {
4049 container = mono_class_get_generic_container (mono_class_get_generic_class (klass)->container_class);
4050 ginst = mono_class_get_generic_class (klass)->context.class_inst;
4051 } else if (mono_class_is_gtd (klass) && context_used) {
4052 container = mono_class_get_generic_container (klass);
4053 ginst = container->context.class_inst;
4058 for (i = 0; i < container->type_argc; ++i) {
4060 if (!(mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT)))
4062 type = ginst->type_argv [i];
4063 if (mini_type_is_reference (type))
4070 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
4072 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
4076 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
4078 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
4079 hole->clause = clause;
4080 hole->start_offset = start - cfg->native_code;
4081 hole->basic_block = bb;
4083 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
4087 mono_cfg_set_exception (MonoCompile *cfg, int type)
4089 cfg->exception_type = type;
4092 /* Assumes ownership of the MSG argument */
4094 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
4096 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
4097 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", "%s", msg);
4100 #endif /* DISABLE_JIT */
4103 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
4105 MonoDomain *domain = mono_get_root_domain ();
4110 if (info->uw_info) {
4111 uw_info = info->uw_info;
4112 info_len = info->uw_info_len;
4114 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
4117 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
4118 jinfo->d.method = wrapper;
4119 jinfo->code_start = info->code;
4120 jinfo->code_size = info->code_size;
4121 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
4129 GTimer *mono_time_track_start ()
4131 return g_timer_new ();
4134 void mono_time_track_end (double *time, GTimer *timer)
4136 g_timer_stop (timer);
4137 *time += g_timer_elapsed (timer, NULL);
4138 g_timer_destroy (timer);
4141 void mono_update_jit_stats (MonoCompile *cfg)
4143 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4144 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4145 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4146 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4147 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4148 mono_jit_stats.regvars += cfg->stat_n_regvars;
4149 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4150 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4151 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4155 * mono_jit_compile_method_inner:
4157 * Main entry point for the JIT.
4160 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4163 gpointer code = NULL;
4164 MonoJitInfo *jinfo, *info;
4166 MonoException *ex = NULL;
4167 guint32 prof_options;
4169 MonoMethod *prof_method, *shared;
4171 mono_error_init (error);
4173 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4174 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4176 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4178 if (!piinfo->addr) {
4179 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4180 piinfo->addr = mono_lookup_internal_call (method);
4181 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4183 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);
4185 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);
4188 mono_lookup_pinvoke_call (method, NULL, NULL);
4190 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4191 gpointer compiled_method = mono_compile_method_checked (nm, error);
4192 return_val_if_nok (error, NULL);
4193 code = mono_get_addr_from_ftnptr (compiled_method);
4194 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4196 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4198 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4200 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4201 const char *name = method->name;
4202 char *full_name, *msg;
4205 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4206 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4207 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4210 * We need to make sure this wrapper
4211 * is compiled because it might end up
4212 * in an (M)RGCTX if generic sharing
4213 * is enabled, and would be called
4214 * indirectly. If it were a
4215 * trampoline we'd try to patch that
4216 * indirect call, which is not
4219 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4220 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4221 if (mono_llvm_only) {
4222 nm = mono_marshal_get_delegate_invoke (method, NULL);
4223 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4224 mono_error_assert_ok (error);
4225 return mono_get_addr_from_ftnptr (compiled_ptr);
4227 return mono_create_delegate_trampoline (target_domain, method->klass);
4228 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4229 nm = mono_marshal_get_delegate_begin_invoke (method);
4230 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4231 mono_error_assert_ok (error);
4232 return mono_get_addr_from_ftnptr (compiled_ptr);
4233 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4234 nm = mono_marshal_get_delegate_end_invoke (method);
4235 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4236 mono_error_assert_ok (error);
4237 return mono_get_addr_from_ftnptr (compiled_ptr);
4241 full_name = mono_method_full_name (method, TRUE);
4242 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4243 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4244 mono_error_set_exception_instance (error, ex);
4250 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4251 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4253 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4254 static MonoTrampInfo *in_tinfo, *out_tinfo;
4255 MonoTrampInfo *tinfo;
4257 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4259 if (is_in && in_tinfo)
4260 return in_tinfo->code;
4261 else if (!is_in && out_tinfo)
4262 return out_tinfo->code;
4265 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4267 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4270 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4272 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4273 jinfo = create_jit_info_for_trampoline (method, tinfo);
4274 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4283 if (mono_aot_only) {
4284 char *fullname = mono_method_full_name (method, TRUE);
4285 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);
4291 jit_timer = mono_time_track_start ();
4292 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4293 double jit_time = 0.0;
4294 mono_time_track_end (&jit_time, jit_timer);
4295 mono_jit_stats.jit_time += jit_time;
4297 prof_method = cfg->method;
4299 switch (cfg->exception_type) {
4300 case MONO_EXCEPTION_NONE:
4302 case MONO_EXCEPTION_TYPE_LOAD:
4303 case MONO_EXCEPTION_MISSING_FIELD:
4304 case MONO_EXCEPTION_MISSING_METHOD:
4305 case MONO_EXCEPTION_FILE_NOT_FOUND:
4306 case MONO_EXCEPTION_BAD_IMAGE:
4307 case MONO_EXCEPTION_INVALID_PROGRAM: {
4308 /* Throw a type load exception if needed */
4309 if (cfg->exception_ptr) {
4310 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4312 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4313 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4314 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4315 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4316 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4317 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4318 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4319 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4320 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4321 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4322 else if (cfg->exception_type == MONO_EXCEPTION_INVALID_PROGRAM)
4323 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4325 g_assert_not_reached ();
4329 case MONO_EXCEPTION_MONO_ERROR:
4330 // FIXME: MonoError has no copy ctor
4331 g_assert (!mono_error_ok (&cfg->error));
4332 ex = mono_error_convert_to_exception (&cfg->error);
4335 g_assert_not_reached ();
4339 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4340 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4342 mono_destroy_compile (cfg);
4343 mono_error_set_exception_instance (error, ex);
4348 if (mono_method_is_generic_sharable (method, FALSE))
4349 shared = mini_get_shared_method (method);
4353 mono_domain_lock (target_domain);
4355 /* Check if some other thread already did the job. In this case, we can
4356 discard the code this thread generated. */
4358 info = mini_lookup_method (target_domain, method, shared);
4360 /* We can't use a domain specific method in another domain */
4361 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4362 code = info->code_start;
4364 discarded_jit_time += jit_time;
4368 /* The lookup + insert is atomic since this is done inside the domain lock */
4369 mono_domain_jit_code_hash_lock (target_domain);
4370 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4371 mono_domain_jit_code_hash_unlock (target_domain);
4373 code = cfg->native_code;
4375 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4376 mono_stats.generics_shared_methods++;
4378 mono_stats.gsharedvt_methods++;
4381 jinfo = cfg->jit_info;
4383 prof_options = cfg->prof_options;
4386 * Update global stats while holding a lock, instead of doing many
4387 * InterlockedIncrement operations during JITting.
4389 mono_update_jit_stats (cfg);
4391 mono_destroy_compile (cfg);
4394 if (domain_jit_info (target_domain)->jump_target_hash) {
4395 MonoJumpInfo patch_info;
4396 MonoJumpList *jlist;
4398 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4400 patch_info.next = NULL;
4401 patch_info.ip.i = 0;
4402 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4403 patch_info.data.method = method;
4404 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4406 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4407 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4408 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4409 if (!mono_error_ok (error))
4411 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4414 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4415 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE, error);
4423 /* Update llvm callees */
4424 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4425 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4428 for (l = callees; l; l = l->next) {
4429 gpointer *addr = (gpointer*)l->data;
4435 mono_emit_jit_map (jinfo);
4437 mono_domain_unlock (target_domain);
4439 if (!mono_error_ok (error))
4442 vtable = mono_class_vtable (target_domain, method->klass);
4444 g_assert (mono_class_has_failure (method->klass));
4445 mono_error_set_for_class_failure (error, method->klass);
4449 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4450 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4451 if (mono_marshal_method_from_wrapper (method)) {
4452 /* Native func wrappers have no method */
4453 /* The profiler doesn't know about wrappers, so pass the original icall method */
4454 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4457 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4458 if (prof_method != method) {
4459 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4463 if (!mono_runtime_class_init_full (vtable, error))
4469 * mini_get_underlying_type:
4471 * Return the type the JIT will use during compilation.
4472 * Handles: byref, enums, native types, generic sharing.
4473 * For gsharedvt types, it will return the original VAR/MVAR.
4476 mini_get_underlying_type (MonoType *type)
4478 return mini_type_get_underlying_type (type);
4482 mini_jit_init (void)
4484 mono_counters_register ("Discarded method code", MONO_COUNTER_JIT | MONO_COUNTER_INT, &discarded_code);
4485 mono_counters_register ("Time spent JITting discarded code", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &discarded_jit_time);
4487 mono_os_mutex_init_recursive (&jit_mutex);
4489 current_backend = g_new0 (MonoBackend, 1);
4490 init_backend (current_backend);
4495 mini_jit_cleanup (void)
4498 g_free (emul_opcode_map);
4499 g_free (emul_opcode_opcodes);
4505 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4507 g_assert_not_reached ();
4510 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4512 g_assert_not_reached ();
4517 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4520 mono_llvm_cpp_throw_exception (void)
4522 g_assert_not_reached ();
4530 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4532 g_assert_not_reached ();
4537 mono_destroy_compile (MonoCompile *cfg)
4539 g_assert_not_reached ();
4543 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4545 g_assert_not_reached ();
4548 #endif /* DISABLE_JIT */