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"
82 MonoTraceSpec *mono_jit_trace_calls;
83 MonoMethodDesc *mono_inject_async_exc_method;
84 int mono_inject_async_exc_pos;
85 MonoMethodDesc *mono_break_at_bb_method;
86 int mono_break_at_bb_bb_num;
87 gboolean mono_do_x86_stack_align = TRUE;
88 gboolean mono_using_xdebug;
91 static guint32 discarded_code;
92 static double discarded_jit_time;
94 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
95 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
96 static mono_mutex_t jit_mutex;
98 MonoBackend *current_backend;
103 mono_realloc_native_code (MonoCompile *cfg)
105 return g_realloc (cfg->native_code, cfg->code_size);
109 MonoExceptionClause *clause;
110 MonoBasicBlock *basic_block;
115 * mono_emit_unwind_op:
117 * Add an unwind op with the given parameters for the list of unwind ops stored in
121 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
123 MonoUnwindOp *op = (MonoUnwindOp *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
130 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
131 if (cfg->verbose_level > 1) {
134 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
136 case DW_CFA_def_cfa_register:
137 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
139 case DW_CFA_def_cfa_offset:
140 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
143 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
149 #define MONO_INIT_VARINFO(vi,id) do { \
150 (vi)->range.first_use.pos.bid = 0xffff; \
156 * mono_unlink_bblock:
158 * Unlink two basic blocks.
161 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
167 for (i = 0; i < from->out_count; ++i) {
168 if (to == from->out_bb [i]) {
175 for (i = 0; i < from->out_count; ++i) {
176 if (from->out_bb [i] != to)
177 from->out_bb [pos ++] = from->out_bb [i];
179 g_assert (pos == from->out_count - 1);
184 for (i = 0; i < to->in_count; ++i) {
185 if (from == to->in_bb [i]) {
192 for (i = 0; i < to->in_count; ++i) {
193 if (to->in_bb [i] != from)
194 to->in_bb [pos ++] = to->in_bb [i];
196 g_assert (pos == to->in_count - 1);
202 * mono_bblocks_linked:
204 * Return whenever BB1 and BB2 are linked in the CFG.
207 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
211 for (i = 0; i < bb1->out_count; ++i) {
212 if (bb1->out_bb [i] == bb2)
220 mono_find_block_region_notry (MonoCompile *cfg, int offset)
222 MonoMethodHeader *header = cfg->header;
223 MonoExceptionClause *clause;
226 for (i = 0; i < header->num_clauses; ++i) {
227 clause = &header->clauses [i];
228 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
229 (offset < (clause->handler_offset)))
230 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
232 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
233 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
234 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
235 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
236 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
238 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
246 * mono_get_block_region_notry:
248 * Return the region corresponding to REGION, ignoring try clauses nested inside
252 mono_get_block_region_notry (MonoCompile *cfg, int region)
254 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
255 MonoMethodHeader *header = cfg->header;
258 * This can happen if a try clause is nested inside a finally clause.
260 int clause_index = (region >> 8) - 1;
261 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
263 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
270 mono_find_spvar_for_region (MonoCompile *cfg, int region)
272 region = mono_get_block_region_notry (cfg, region);
274 return (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
278 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
282 array [*dfn] = start;
283 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
284 for (i = 0; i < start->out_count; ++i) {
285 if (start->out_bb [i]->dfn)
288 start->out_bb [i]->dfn = *dfn;
289 start->out_bb [i]->df_parent = start;
290 array [*dfn] = start->out_bb [i];
291 df_visit (start->out_bb [i], dfn, array);
296 mono_reverse_branch_op (guint32 opcode)
298 static const int reverse_map [] = {
299 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
300 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
302 static const int reverse_fmap [] = {
303 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
304 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
306 static const int reverse_lmap [] = {
307 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
308 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
310 static const int reverse_imap [] = {
311 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
312 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
315 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
316 opcode = reverse_map [opcode - CEE_BEQ];
317 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
318 opcode = reverse_fmap [opcode - OP_FBEQ];
319 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
320 opcode = reverse_lmap [opcode - OP_LBEQ];
321 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
322 opcode = reverse_imap [opcode - OP_IBEQ];
324 g_assert_not_reached ();
330 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
332 type = mini_get_underlying_type (type);
335 switch (type->type) {
338 return OP_STOREI1_MEMBASE_REG;
341 return OP_STOREI2_MEMBASE_REG;
344 return OP_STOREI4_MEMBASE_REG;
348 case MONO_TYPE_FNPTR:
349 return OP_STORE_MEMBASE_REG;
350 case MONO_TYPE_CLASS:
351 case MONO_TYPE_STRING:
352 case MONO_TYPE_OBJECT:
353 case MONO_TYPE_SZARRAY:
354 case MONO_TYPE_ARRAY:
355 return OP_STORE_MEMBASE_REG;
358 return OP_STOREI8_MEMBASE_REG;
360 return OP_STORER4_MEMBASE_REG;
362 return OP_STORER8_MEMBASE_REG;
363 case MONO_TYPE_VALUETYPE:
364 if (type->data.klass->enumtype) {
365 type = mono_class_enum_basetype (type->data.klass);
368 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
369 return OP_STOREX_MEMBASE;
370 return OP_STOREV_MEMBASE;
371 case MONO_TYPE_TYPEDBYREF:
372 return OP_STOREV_MEMBASE;
373 case MONO_TYPE_GENERICINST:
374 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
375 return OP_STOREX_MEMBASE;
376 type = &type->data.generic_class->container_class->byval_arg;
380 g_assert (mini_type_var_is_vt (type));
381 return OP_STOREV_MEMBASE;
383 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
389 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
391 type = mini_get_underlying_type (type);
393 switch (type->type) {
395 return OP_LOADI1_MEMBASE;
397 return OP_LOADU1_MEMBASE;
399 return OP_LOADI2_MEMBASE;
401 return OP_LOADU2_MEMBASE;
403 return OP_LOADI4_MEMBASE;
405 return OP_LOADU4_MEMBASE;
409 case MONO_TYPE_FNPTR:
410 return OP_LOAD_MEMBASE;
411 case MONO_TYPE_CLASS:
412 case MONO_TYPE_STRING:
413 case MONO_TYPE_OBJECT:
414 case MONO_TYPE_SZARRAY:
415 case MONO_TYPE_ARRAY:
416 return OP_LOAD_MEMBASE;
419 return OP_LOADI8_MEMBASE;
421 return OP_LOADR4_MEMBASE;
423 return OP_LOADR8_MEMBASE;
424 case MONO_TYPE_VALUETYPE:
425 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
426 return OP_LOADX_MEMBASE;
427 case MONO_TYPE_TYPEDBYREF:
428 return OP_LOADV_MEMBASE;
429 case MONO_TYPE_GENERICINST:
430 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
431 return OP_LOADX_MEMBASE;
432 if (mono_type_generic_inst_is_valuetype (type))
433 return OP_LOADV_MEMBASE;
435 return OP_LOAD_MEMBASE;
439 g_assert (cfg->gshared);
440 g_assert (mini_type_var_is_vt (type));
441 return OP_LOADV_MEMBASE;
443 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
449 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
451 type = mini_get_underlying_type (type);
452 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
453 g_assert (mini_type_var_is_vt (type));
456 return mono_type_to_stind (type);
460 mono_op_imm_to_op (int opcode)
464 #if SIZEOF_REGISTER == 4
482 #if SIZEOF_REGISTER == 4
488 #if SIZEOF_REGISTER == 4
494 #if SIZEOF_REGISTER == 4
540 #if SIZEOF_REGISTER == 4
546 #if SIZEOF_REGISTER == 4
565 case OP_ICOMPARE_IMM:
567 case OP_LOCALLOC_IMM:
575 * mono_decompose_op_imm:
577 * Replace the OP_.._IMM INS with its non IMM variant.
580 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
582 int opcode2 = mono_op_imm_to_op (ins->opcode);
585 const char *spec = INS_INFO (ins->opcode);
587 if (spec [MONO_INST_SRC2] == 'l') {
588 dreg = mono_alloc_lreg (cfg);
590 /* Load the 64bit constant using decomposed ops */
591 MONO_INST_NEW (cfg, temp, OP_ICONST);
592 temp->inst_c0 = ins->inst_ls_word;
593 temp->dreg = MONO_LVREG_LS (dreg);
594 mono_bblock_insert_before_ins (bb, ins, temp);
596 MONO_INST_NEW (cfg, temp, OP_ICONST);
597 temp->inst_c0 = ins->inst_ms_word;
598 temp->dreg = MONO_LVREG_MS (dreg);
600 dreg = mono_alloc_ireg (cfg);
602 MONO_INST_NEW (cfg, temp, OP_ICONST);
603 temp->inst_c0 = ins->inst_imm;
607 mono_bblock_insert_before_ins (bb, ins, temp);
610 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
611 ins->opcode = opcode2;
613 if (ins->opcode == OP_LOCALLOC)
618 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
622 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
624 if (vreg >= cfg->vreg_to_inst_len) {
625 MonoInst **tmp = cfg->vreg_to_inst;
626 int size = cfg->vreg_to_inst_len;
628 while (vreg >= cfg->vreg_to_inst_len)
629 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
630 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
632 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
634 cfg->vreg_to_inst [vreg] = inst;
637 #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)))
638 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
641 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
644 int num = cfg->num_varinfo;
647 type = mini_get_underlying_type (type);
649 if ((num + 1) >= cfg->varinfo_count) {
650 int orig_count = cfg->varinfo_count;
651 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
652 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
653 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
654 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
657 cfg->stat_allocate_var++;
659 MONO_INST_NEW (cfg, inst, opcode);
661 inst->inst_vtype = type;
662 inst->klass = mono_class_from_mono_type (type);
663 type_to_eval_stack_type (cfg, type, inst);
664 /* if set to 1 the variable is native */
665 inst->backend.is_pinvoke = 0;
668 if (mono_class_has_failure (inst->klass))
669 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
671 if (cfg->compute_gc_maps) {
673 mono_mark_vreg_as_mp (cfg, vreg);
675 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
676 inst->flags |= MONO_INST_GC_TRACK;
677 mono_mark_vreg_as_ref (cfg, vreg);
682 cfg->varinfo [num] = inst;
684 MONO_INIT_VARINFO (&cfg->vars [num], num);
685 MONO_VARINFO (cfg, num)->vreg = vreg;
688 set_vreg_to_inst (cfg, vreg, inst);
690 #if SIZEOF_REGISTER == 4
691 if (mono_arch_is_soft_float ()) {
692 regpair = mono_type_is_long (type) || mono_type_is_float (type);
694 regpair = mono_type_is_long (type);
704 * These two cannot be allocated using create_var_for_vreg since that would
705 * put it into the cfg->varinfo array, confusing many parts of the JIT.
709 * Set flags to VOLATILE so SSA skips it.
712 if (cfg->verbose_level >= 4) {
713 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
716 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
717 if (mono_type_is_float (type))
718 inst->flags = MONO_INST_VOLATILE;
721 /* Allocate a dummy MonoInst for the first vreg */
722 MONO_INST_NEW (cfg, tree, OP_LOCAL);
723 tree->dreg = MONO_LVREG_LS (inst->dreg);
724 if (cfg->opt & MONO_OPT_SSA)
725 tree->flags = MONO_INST_VOLATILE;
727 tree->type = STACK_I4;
728 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
729 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
731 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
733 /* Allocate a dummy MonoInst for the second vreg */
734 MONO_INST_NEW (cfg, tree, OP_LOCAL);
735 tree->dreg = MONO_LVREG_MS (inst->dreg);
736 if (cfg->opt & MONO_OPT_SSA)
737 tree->flags = MONO_INST_VOLATILE;
739 tree->type = STACK_I4;
740 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
741 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
743 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
747 if (cfg->verbose_level > 2)
748 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
753 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
756 type = mini_get_underlying_type (type);
758 if (mono_type_is_long (type))
759 dreg = mono_alloc_dreg (cfg, STACK_I8);
760 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
761 dreg = mono_alloc_dreg (cfg, STACK_R8);
763 /* All the others are unified */
764 dreg = mono_alloc_preg (cfg);
766 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
770 mini_get_int_to_float_spill_area (MonoCompile *cfg)
773 if (!cfg->iconv_raw_var) {
774 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
775 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
777 return cfg->iconv_raw_var;
784 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
786 if (vreg >= cfg->vreg_is_ref_len) {
787 gboolean *tmp = cfg->vreg_is_ref;
788 int size = cfg->vreg_is_ref_len;
790 while (vreg >= cfg->vreg_is_ref_len)
791 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
792 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
794 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
796 cfg->vreg_is_ref [vreg] = TRUE;
800 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
802 if (vreg >= cfg->vreg_is_mp_len) {
803 gboolean *tmp = cfg->vreg_is_mp;
804 int size = cfg->vreg_is_mp_len;
806 while (vreg >= cfg->vreg_is_mp_len)
807 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
808 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
810 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
812 cfg->vreg_is_mp [vreg] = TRUE;
816 type_from_stack_type (MonoInst *ins)
819 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
820 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
821 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
822 case STACK_R8: return &mono_defaults.double_class->byval_arg;
825 * this if used to be commented without any specific reason, but
826 * it breaks #80235 when commented
829 return &ins->klass->this_arg;
831 return &mono_defaults.object_class->this_arg;
833 /* ins->klass may not be set for ldnull.
834 * Also, if we have a boxed valuetype, we want an object lass,
835 * not the valuetype class
837 if (ins->klass && !ins->klass->valuetype)
838 return &ins->klass->byval_arg;
839 return &mono_defaults.object_class->byval_arg;
840 case STACK_VTYPE: return &ins->klass->byval_arg;
842 g_error ("stack type %d to montype not handled\n", ins->type);
848 mono_type_from_stack_type (MonoInst *ins)
850 return type_from_stack_type (ins);
854 * mono_add_ins_to_end:
856 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
859 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
864 MONO_ADD_INS (bb, inst);
868 switch (bb->last_ins->opcode) {
882 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
885 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
886 /* Need to insert the ins before the compare */
887 if (bb->code == bb->last_ins) {
888 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
892 if (bb->code->next == bb->last_ins) {
893 /* Only two instructions */
894 opcode = bb->code->opcode;
896 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)) {
898 mono_bblock_insert_before_ins (bb, bb->code, inst);
900 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
903 opcode = bb->last_ins->prev->opcode;
905 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)) {
907 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
909 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
914 MONO_ADD_INS (bb, inst);
920 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
922 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
923 MonoJumpInfoBBTable *table;
925 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
927 table->table_size = num_blocks;
929 ji->ip.label = label;
930 ji->type = MONO_PATCH_INFO_SWITCH;
931 ji->data.table = table;
932 ji->next = cfg->patch_info;
933 cfg->patch_info = ji;
936 static MonoMethodSignature *
937 mono_get_array_new_va_signature (int arity)
939 static GHashTable *sighash;
940 MonoMethodSignature *res;
945 sighash = g_hash_table_new (NULL, NULL);
947 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
952 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
955 if (ARCH_VARARG_ICALLS)
956 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
957 res->call_convention = MONO_CALL_VARARG;
960 res->call_convention = MONO_CALL_C;
963 res->params [0] = &mono_defaults.int_class->byval_arg;
964 for (i = 0; i < arity; i++)
965 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
967 res->ret = &mono_defaults.object_class->byval_arg;
969 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
976 mono_get_array_new_va_icall (int rank)
978 MonoMethodSignature *esig;
979 char icall_name [256];
981 MonoJitICallInfo *info;
983 /* Need to register the icall so it gets an icall wrapper */
984 sprintf (icall_name, "ves_array_new_va_%d", rank);
987 info = mono_find_jit_icall_by_name (icall_name);
989 esig = mono_get_array_new_va_signature (rank);
990 name = g_strdup (icall_name);
991 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
999 mini_class_is_system_array (MonoClass *klass)
1001 if (klass->parent == mono_defaults.array_class)
1008 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1010 MonoAssembly *assembly = method->klass->image->assembly;
1011 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1013 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1015 return mono_assembly_has_skip_verification (assembly);
1019 * mini_method_verify:
1021 * Verify the method using the verfier.
1023 * Returns true if the method is invalid.
1026 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1029 gboolean is_fulltrust;
1031 if (method->verification_success)
1034 if (!mono_verifier_is_enabled_for_method (method))
1037 /*skip verification implies the assembly must be */
1038 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1040 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1043 for (tmp = res; tmp; tmp = tmp->next) {
1044 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1045 if (info->info.status == MONO_VERIFY_ERROR) {
1047 char *method_name = mono_method_full_name (method, TRUE);
1048 cfg->exception_type = info->exception_type;
1049 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1050 g_free (method_name);
1052 mono_free_verify_list (res);
1055 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1057 char *method_name = mono_method_full_name (method, TRUE);
1058 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1060 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1061 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1062 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1063 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1064 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1065 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", "%s", msg);
1066 if (!mono_error_ok (&cfg->error)) {
1067 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1070 cfg->exception_type = info->exception_type;
1071 cfg->exception_message = msg;
1073 g_free (method_name);
1075 mono_free_verify_list (res);
1079 mono_free_verify_list (res);
1081 method->verification_success = 1;
1085 /*Returns true if something went wrong*/
1087 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1089 MonoMethod *method_definition = method;
1090 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1092 while (method_definition->is_inflated) {
1093 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1094 method_definition = imethod->declaring;
1097 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1101 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1103 if (!domain_jit_info (domain)->dynamic_code_hash)
1104 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1105 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1108 static MonoJitDynamicMethodInfo*
1109 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1111 MonoJitDynamicMethodInfo *res;
1113 if (domain_jit_info (domain)->dynamic_code_hash)
1114 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1122 GList *active, *inactive;
1127 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1129 MonoMethodVar *v1 = (MonoMethodVar*)a;
1130 MonoMethodVar *v2 = (MonoMethodVar*)b;
1134 else if (v1->interval->range && v2->interval->range)
1135 return v1->interval->range->from - v2->interval->range->from;
1136 else if (v1->interval->range)
1143 #define LSCAN_DEBUG(a) do { a; } while (0)
1145 #define LSCAN_DEBUG(a)
1149 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1151 int i, slot, offset, size;
1156 GList *vars = NULL, *l, *unhandled;
1157 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1160 gboolean reuse_slot;
1162 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1164 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1165 vtype_stack_slots = NULL;
1168 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1169 for (i = 0; i < cfg->num_varinfo; ++i)
1172 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1173 inst = cfg->varinfo [i];
1174 vmv = MONO_VARINFO (cfg, i);
1176 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1179 vars = g_list_prepend (vars, vmv);
1182 vars = g_list_sort (vars, compare_by_interval_start_pos_func);
1187 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1188 MonoMethodVar *current = unhandled->data;
1190 if (current->interval->range) {
1191 g_assert (current->interval->range->from >= i);
1192 i = current->interval->range->from;
1199 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1200 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1203 inst = cfg->varinfo [vmv->idx];
1205 t = mono_type_get_underlying_type (inst->inst_vtype);
1206 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1209 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1210 * pinvoke wrappers when they call functions returning structures */
1211 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1212 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1217 size = mini_type_stack_size (t, &ialign);
1220 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1225 if (cfg->disable_reuse_stack_slots)
1228 t = mini_get_underlying_type (t);
1230 case MONO_TYPE_GENERICINST:
1231 if (!mono_type_generic_inst_is_valuetype (t)) {
1232 slot_info = &scalar_stack_slots [t->type];
1236 case MONO_TYPE_VALUETYPE:
1237 if (!vtype_stack_slots)
1238 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1239 for (i = 0; i < nvtypes; ++i)
1240 if (t->data.klass == vtype_stack_slots [i].vtype)
1243 slot_info = &vtype_stack_slots [i];
1245 g_assert (nvtypes < 256);
1246 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1247 slot_info = &vtype_stack_slots [nvtypes];
1250 if (cfg->disable_reuse_ref_stack_slots)
1257 #if SIZEOF_VOID_P == 4
1262 if (cfg->disable_ref_noref_stack_slot_share) {
1263 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1268 case MONO_TYPE_CLASS:
1269 case MONO_TYPE_OBJECT:
1270 case MONO_TYPE_ARRAY:
1271 case MONO_TYPE_SZARRAY:
1272 case MONO_TYPE_STRING:
1273 /* Share non-float stack slots of the same size */
1274 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1275 if (cfg->disable_reuse_ref_stack_slots)
1280 slot_info = &scalar_stack_slots [t->type];
1284 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1288 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1290 if (!current->interval->range) {
1291 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1295 inst->flags |= MONO_INST_IS_DEAD;
1300 pos = current->interval->range->from;
1302 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1303 if (current->interval->range)
1304 LSCAN_DEBUG (mono_linterval_print (current->interval));
1305 LSCAN_DEBUG (printf ("\n"));
1307 /* Check for intervals in active which expired or inactive */
1309 /* FIXME: Optimize this */
1312 for (l = slot_info->active; l != NULL; l = l->next) {
1313 MonoMethodVar *v = (MonoMethodVar*)l->data;
1315 if (v->interval->last_range->to < pos) {
1316 slot_info->active = g_list_delete_link (slot_info->active, l);
1317 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1318 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1322 else if (!mono_linterval_covers (v->interval, pos)) {
1323 slot_info->inactive = g_list_append (slot_info->inactive, v);
1324 slot_info->active = g_list_delete_link (slot_info->active, l);
1325 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1332 /* Check for intervals in inactive which expired or active */
1334 /* FIXME: Optimize this */
1337 for (l = slot_info->inactive; l != NULL; l = l->next) {
1338 MonoMethodVar *v = (MonoMethodVar*)l->data;
1340 if (v->interval->last_range->to < pos) {
1341 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1342 // FIXME: Enabling this seems to cause impossible to debug crashes
1343 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1344 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1348 else if (mono_linterval_covers (v->interval, pos)) {
1349 slot_info->active = g_list_append (slot_info->active, v);
1350 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1351 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1359 * This also handles the case when the variable is used in an
1360 * exception region, as liveness info is not computed there.
1363 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1366 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1367 if (slot_info->slots) {
1368 slot = GPOINTER_TO_INT (slot_info->slots->data);
1370 slot_info->slots = slot_info->slots->next;
1373 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1375 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1381 static int count = 0;
1384 if (count == atoi (g_getenv ("COUNT3")))
1385 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1386 if (count > atoi (g_getenv ("COUNT3")))
1389 mono_print_ins (inst);
1394 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1396 if (inst->flags & MONO_INST_LMF) {
1397 size = sizeof (MonoLMF);
1398 align = sizeof (mgreg_t);
1405 if (slot == 0xffffff) {
1407 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1408 * efficient copying (and to work around the fact that OP_MEMCPY
1409 * and OP_MEMSET ignores alignment).
1411 if (MONO_TYPE_ISSTRUCT (t)) {
1412 align = MAX (align, sizeof (gpointer));
1413 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1418 offset += align - 1;
1419 offset &= ~(align - 1);
1423 offset += align - 1;
1424 offset &= ~(align - 1);
1429 if (*stack_align == 0)
1430 *stack_align = align;
1433 offsets [vmv->idx] = slot;
1436 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1437 if (scalar_stack_slots [i].active)
1438 g_list_free (scalar_stack_slots [i].active);
1440 for (i = 0; i < nvtypes; ++i) {
1441 if (vtype_stack_slots [i].active)
1442 g_list_free (vtype_stack_slots [i].active);
1445 cfg->stat_locals_stack_size += offset;
1447 *stack_size = offset;
1452 * mono_allocate_stack_slots:
1454 * Allocate stack slots for all non register allocated variables using a
1455 * linear scan algorithm.
1456 * Returns: an array of stack offsets.
1457 * STACK_SIZE is set to the amount of stack space needed.
1458 * STACK_ALIGN is set to the alignment needed by the locals area.
1461 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1463 int i, slot, offset, size;
1468 GList *vars = NULL, *l;
1469 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1472 gboolean reuse_slot;
1474 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1475 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1477 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1478 vtype_stack_slots = NULL;
1481 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1482 for (i = 0; i < cfg->num_varinfo; ++i)
1485 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1486 inst = cfg->varinfo [i];
1487 vmv = MONO_VARINFO (cfg, i);
1489 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1492 vars = g_list_prepend (vars, vmv);
1495 vars = mono_varlist_sort (cfg, vars, 0);
1497 *stack_align = sizeof(mgreg_t);
1498 for (l = vars; l; l = l->next) {
1499 vmv = (MonoMethodVar *)l->data;
1500 inst = cfg->varinfo [vmv->idx];
1502 t = mono_type_get_underlying_type (inst->inst_vtype);
1503 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1506 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1507 * pinvoke wrappers when they call functions returning structures */
1508 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1509 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1513 size = mini_type_stack_size (t, &ialign);
1516 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1517 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1519 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1524 if (cfg->disable_reuse_stack_slots)
1527 t = mini_get_underlying_type (t);
1529 case MONO_TYPE_GENERICINST:
1530 if (!mono_type_generic_inst_is_valuetype (t)) {
1531 slot_info = &scalar_stack_slots [t->type];
1535 case MONO_TYPE_VALUETYPE:
1536 if (!vtype_stack_slots)
1537 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1538 for (i = 0; i < nvtypes; ++i)
1539 if (t->data.klass == vtype_stack_slots [i].vtype)
1542 slot_info = &vtype_stack_slots [i];
1544 g_assert (nvtypes < 256);
1545 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1546 slot_info = &vtype_stack_slots [nvtypes];
1549 if (cfg->disable_reuse_ref_stack_slots)
1556 #if SIZEOF_VOID_P == 4
1561 if (cfg->disable_ref_noref_stack_slot_share) {
1562 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1567 case MONO_TYPE_CLASS:
1568 case MONO_TYPE_OBJECT:
1569 case MONO_TYPE_ARRAY:
1570 case MONO_TYPE_SZARRAY:
1571 case MONO_TYPE_STRING:
1572 /* Share non-float stack slots of the same size */
1573 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1574 if (cfg->disable_reuse_ref_stack_slots)
1578 case MONO_TYPE_MVAR:
1579 slot_info = &scalar_stack_slots [t->type];
1582 slot_info = &scalar_stack_slots [t->type];
1587 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1588 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1590 /* expire old intervals in active */
1591 while (slot_info->active) {
1592 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1594 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1597 //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);
1599 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1600 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1604 * This also handles the case when the variable is used in an
1605 * exception region, as liveness info is not computed there.
1608 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1611 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1612 if (slot_info->slots) {
1613 slot = GPOINTER_TO_INT (slot_info->slots->data);
1615 slot_info->slots = slot_info->slots->next;
1618 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1623 static int count = 0;
1627 if (count == atoi (g_getenv ("COUNT")))
1628 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1629 if (count > atoi (g_getenv ("COUNT")))
1632 mono_print_ins (inst);
1637 if (inst->flags & MONO_INST_LMF) {
1639 * This variable represents a MonoLMF structure, which has no corresponding
1640 * CLR type, so hard-code its size/alignment.
1642 size = sizeof (MonoLMF);
1643 align = sizeof (mgreg_t);
1650 if (slot == 0xffffff) {
1652 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1653 * efficient copying (and to work around the fact that OP_MEMCPY
1654 * and OP_MEMSET ignores alignment).
1656 if (MONO_TYPE_ISSTRUCT (t)) {
1657 align = MAX (align, sizeof (gpointer));
1658 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1660 * Align the size too so the code generated for passing vtypes in
1661 * registers doesn't overwrite random locals.
1663 size = (size + (align - 1)) & ~(align -1);
1668 offset += align - 1;
1669 offset &= ~(align - 1);
1673 offset += align - 1;
1674 offset &= ~(align - 1);
1679 *stack_align = MAX (*stack_align, align);
1682 offsets [vmv->idx] = slot;
1685 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1686 if (scalar_stack_slots [i].active)
1687 g_list_free (scalar_stack_slots [i].active);
1689 for (i = 0; i < nvtypes; ++i) {
1690 if (vtype_stack_slots [i].active)
1691 g_list_free (vtype_stack_slots [i].active);
1694 cfg->stat_locals_stack_size += offset;
1696 *stack_size = offset;
1700 #define EMUL_HIT_SHIFT 3
1701 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1702 /* small hit bitmap cache */
1703 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1704 static short emul_opcode_num = 0;
1705 static short emul_opcode_alloced = 0;
1706 static short *emul_opcode_opcodes;
1707 static MonoJitICallInfo **emul_opcode_map;
1710 mono_find_jit_opcode_emulation (int opcode)
1712 g_assert (opcode >= 0 && opcode <= OP_LAST);
1713 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1715 for (i = 0; i < emul_opcode_num; ++i) {
1716 if (emul_opcode_opcodes [i] == opcode)
1717 return emul_opcode_map [i];
1724 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1726 MonoJitICallInfo *info;
1727 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1729 g_assert (!sig->hasthis);
1730 g_assert (sig->param_count < 3);
1732 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1733 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1735 if (emul_opcode_num >= emul_opcode_alloced) {
1736 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1737 emul_opcode_alloced += incr;
1738 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1739 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1741 emul_opcode_map [emul_opcode_num] = info;
1742 emul_opcode_opcodes [emul_opcode_num] = opcode;
1744 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1748 print_dfn (MonoCompile *cfg)
1756 char *method_name = mono_method_full_name (cfg->method, TRUE);
1757 g_print ("IR code for method %s\n", method_name);
1758 g_free (method_name);
1761 for (i = 0; i < cfg->num_bblocks; ++i) {
1762 bb = cfg->bblocks [i];
1763 /*if (bb->cil_code) {
1764 char* code1, *code2;
1765 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1766 if (bb->last_ins->cil_code)
1767 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1769 code2 = g_strdup ("");
1771 code1 [strlen (code1) - 1] = 0;
1772 code = g_strdup_printf ("%s -> %s", code1, code2);
1776 code = g_strdup ("\n");
1777 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1778 MONO_BB_FOR_EACH_INS (bb, c) {
1779 mono_print_ins_index (-1, c);
1782 g_print ("\tprev:");
1783 for (j = 0; j < bb->in_count; ++j) {
1784 g_print (" BB%d", bb->in_bb [j]->block_num);
1786 g_print ("\t\tsucc:");
1787 for (j = 0; j < bb->out_count; ++j) {
1788 g_print (" BB%d", bb->out_bb [j]->block_num);
1790 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1793 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1796 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1798 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1806 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1808 MONO_ADD_INS (bb, inst);
1812 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1816 bb->code = ins_to_insert;
1818 /* Link with next */
1819 ins_to_insert->next = ins;
1821 ins->prev = ins_to_insert;
1823 if (bb->last_ins == NULL)
1824 bb->last_ins = ins_to_insert;
1826 /* Link with next */
1827 ins_to_insert->next = ins->next;
1829 ins->next->prev = ins_to_insert;
1831 /* Link with previous */
1832 ins->next = ins_to_insert;
1833 ins_to_insert->prev = ins;
1835 if (bb->last_ins == ins)
1836 bb->last_ins = ins_to_insert;
1841 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1846 ins->prev = ins_to_insert;
1847 bb->code = ins_to_insert;
1848 ins_to_insert->next = ins;
1849 if (bb->last_ins == NULL)
1850 bb->last_ins = ins_to_insert;
1852 /* Link with previous */
1854 ins->prev->next = ins_to_insert;
1855 ins_to_insert->prev = ins->prev;
1857 /* Link with next */
1858 ins->prev = ins_to_insert;
1859 ins_to_insert->next = ins;
1861 if (bb->code == ins)
1862 bb->code = ins_to_insert;
1867 * mono_verify_bblock:
1869 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1872 mono_verify_bblock (MonoBasicBlock *bb)
1874 MonoInst *ins, *prev;
1877 for (ins = bb->code; ins; ins = ins->next) {
1878 g_assert (ins->prev == prev);
1882 g_assert (!bb->last_ins->next);
1888 * Perform consistency checks on the JIT data structures and the IR
1891 mono_verify_cfg (MonoCompile *cfg)
1895 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
1896 mono_verify_bblock (bb);
1899 // This will free many fields in cfg to save
1900 // memory. Note that this must be safe to call
1901 // multiple times. It must be idempotent.
1903 mono_empty_compile (MonoCompile *cfg)
1905 mono_free_loop_info (cfg);
1907 // These live in the mempool, and so must be freed
1909 for (GSList *l = cfg->headers_to_free; l; l = l->next) {
1910 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
1912 cfg->headers_to_free = NULL;
1915 //mono_mempool_stats (cfg->mempool);
1916 mono_mempool_destroy (cfg->mempool);
1917 cfg->mempool = NULL;
1920 g_free (cfg->varinfo);
1921 cfg->varinfo = NULL;
1927 mono_regstate_free (cfg->rs);
1933 mono_destroy_compile (MonoCompile *cfg)
1935 mono_empty_compile (cfg);
1938 mono_metadata_free_mh (cfg->header);
1941 g_hash_table_destroy (cfg->spvars);
1943 g_hash_table_destroy (cfg->exvars);
1945 g_list_free (cfg->ldstr_list);
1947 if (cfg->token_info_hash)
1948 g_hash_table_destroy (cfg->token_info_hash);
1950 if (cfg->abs_patches)
1951 g_hash_table_destroy (cfg->abs_patches);
1953 mono_debug_free_method (cfg);
1955 g_free (cfg->varinfo);
1957 g_free (cfg->exception_message);
1962 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
1964 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
1968 ji->data.target = target;
1969 ji->next = cfg->patch_info;
1971 cfg->patch_info = ji;
1975 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
1977 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
1981 ji->relocation = relocation;
1982 ji->data.target = target;
1983 ji->next = cfg->patch_info;
1985 cfg->patch_info = ji;
1989 mono_remove_patch_info (MonoCompile *cfg, int ip)
1991 MonoJumpInfo **ji = &cfg->patch_info;
1994 if ((*ji)->ip.i == ip)
1997 ji = &((*ji)->next);
2002 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2004 ins->inst_offset = native_offset;
2005 g_ptr_array_add (cfg->seq_points, ins);
2007 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2008 bb->last_seq_point = ins;
2013 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2015 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2018 g_assert (offset == 0);
2020 entry->is_reg = is_reg;
2022 entry->offset = offset;
2026 if (var == cfg->args [0])
2027 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2028 else if (var == cfg->rgctx_var)
2029 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2033 mono_compile_create_vars (MonoCompile *cfg)
2035 MonoMethodSignature *sig;
2036 MonoMethodHeader *header;
2039 header = cfg->header;
2041 sig = mono_method_signature (cfg->method);
2043 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2044 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2045 /* Inhibit optimizations */
2046 cfg->ret->flags |= MONO_INST_VOLATILE;
2048 if (cfg->verbose_level > 2)
2049 g_print ("creating vars\n");
2051 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2054 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2055 cfg->this_arg = cfg->args [0];
2058 for (i = 0; i < sig->param_count; ++i) {
2059 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2062 if (cfg->verbose_level > 2) {
2064 printf ("\treturn : ");
2065 mono_print_ins (cfg->ret);
2069 printf ("\tthis: ");
2070 mono_print_ins (cfg->args [0]);
2073 for (i = 0; i < sig->param_count; ++i) {
2074 printf ("\targ [%d]: ", i);
2075 mono_print_ins (cfg->args [i + sig->hasthis]);
2079 cfg->locals_start = cfg->num_varinfo;
2080 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2082 if (cfg->verbose_level > 2)
2083 g_print ("creating locals\n");
2085 for (i = 0; i < header->num_locals; ++i)
2086 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2088 if (cfg->verbose_level > 2)
2089 g_print ("locals done\n");
2092 if (COMPILE_LLVM (cfg))
2093 mono_llvm_create_vars (cfg);
2095 mono_arch_create_vars (cfg);
2097 mono_arch_create_vars (cfg);
2100 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2101 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2102 lmf_var->flags |= MONO_INST_VOLATILE;
2103 lmf_var->flags |= MONO_INST_LMF;
2104 cfg->lmf_var = lmf_var;
2109 mono_print_code (MonoCompile *cfg, const char* msg)
2113 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2114 mono_print_bb (bb, msg);
2118 mono_postprocess_patches (MonoCompile *cfg)
2120 MonoJumpInfo *patch_info;
2123 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2124 switch (patch_info->type) {
2125 case MONO_PATCH_INFO_ABS: {
2126 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2129 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2133 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2134 /* for these array methods we currently register the same function pointer
2135 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2136 * will return the incorrect one depending on the order they are registered.
2137 * See tests/test-arr.cs
2139 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2140 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2141 patch_info->data.name = info->name;
2145 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2146 if (cfg->abs_patches) {
2147 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2149 patch_info->type = abs_ji->type;
2150 patch_info->data.target = abs_ji->data.target;
2157 case MONO_PATCH_INFO_SWITCH: {
2159 #if defined(__native_client__) && defined(__native_client_codegen__)
2160 /* This memory will leak. */
2161 /* TODO: can we free this when */
2162 /* making the final jump table? */
2163 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2165 if (cfg->method->dynamic) {
2166 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2168 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2172 for (i = 0; i < patch_info->data.table->table_size; i++) {
2173 /* Might be NULL if the switch is eliminated */
2174 if (patch_info->data.table->table [i]) {
2175 g_assert (patch_info->data.table->table [i]->native_offset);
2176 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2181 patch_info->data.table->table = (MonoBasicBlock**)table;
2184 case MONO_PATCH_INFO_METHOD_JUMP: {
2185 MonoJumpList *jlist;
2186 MonoDomain *domain = cfg->domain;
2187 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2189 mono_domain_lock (domain);
2190 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2192 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2193 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2195 jlist->list = g_slist_prepend (jlist->list, ip);
2196 mono_domain_unlock (domain);
2207 mono_codegen (MonoCompile *cfg)
2210 int max_epilog_size;
2212 MonoDomain *code_domain;
2213 guint unwindlen = 0;
2215 if (mono_using_xdebug)
2217 * Recent gdb versions have trouble processing symbol files containing
2218 * overlapping address ranges, so allocate all code from the code manager
2219 * of the root domain. (#666152).
2221 code_domain = mono_get_root_domain ();
2223 code_domain = cfg->domain;
2225 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2226 cfg->spill_count = 0;
2227 /* we reuse dfn here */
2228 /* bb->dfn = bb_count++; */
2230 mono_arch_lowering_pass (cfg, bb);
2232 if (cfg->opt & MONO_OPT_PEEPHOLE)
2233 mono_arch_peephole_pass_1 (cfg, bb);
2235 mono_local_regalloc (cfg, bb);
2237 if (cfg->opt & MONO_OPT_PEEPHOLE)
2238 mono_arch_peephole_pass_2 (cfg, bb);
2240 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2241 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2244 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2245 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2247 code = mono_arch_emit_prolog (cfg);
2249 cfg->code_len = code - cfg->native_code;
2250 cfg->prolog_end = cfg->code_len;
2251 cfg->cfa_reg = cfg->cur_cfa_reg;
2252 cfg->cfa_offset = cfg->cur_cfa_offset;
2254 mono_debug_open_method (cfg);
2256 /* emit code all basic blocks */
2257 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2258 bb->native_offset = cfg->code_len;
2259 bb->real_native_offset = cfg->code_len;
2260 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2261 mono_arch_output_basic_block (cfg, bb);
2262 bb->native_length = cfg->code_len - bb->native_offset;
2264 if (bb == cfg->bb_exit) {
2265 cfg->epilog_begin = cfg->code_len;
2266 mono_arch_emit_epilog (cfg);
2267 cfg->epilog_end = cfg->code_len;
2271 mono_arch_emit_exceptions (cfg);
2273 max_epilog_size = 0;
2275 /* we always allocate code in cfg->domain->code_mp to increase locality */
2276 cfg->code_size = cfg->code_len + max_epilog_size;
2278 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2280 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2281 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2284 if (cfg->method->dynamic) {
2285 /* Allocate the code into a separate memory pool so it can be freed */
2286 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2287 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2288 mono_domain_lock (cfg->domain);
2289 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2290 mono_domain_unlock (cfg->domain);
2292 if (mono_using_xdebug)
2293 /* See the comment for cfg->code_domain */
2294 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2296 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2298 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2301 if (cfg->thunk_area) {
2302 cfg->thunks_offset = cfg->code_size + unwindlen;
2303 cfg->thunks = code + cfg->thunks_offset;
2304 memset (cfg->thunks, 0, cfg->thunk_area);
2308 memcpy (code, cfg->native_code, cfg->code_len);
2309 g_free (cfg->native_code);
2310 cfg->native_code = code;
2311 code = cfg->native_code + cfg->code_len;
2313 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2314 mono_postprocess_patches (cfg);
2316 #ifdef VALGRIND_JIT_REGISTER_MAP
2317 if (valgrind_register){
2318 char* nm = mono_method_full_name (cfg->method, TRUE);
2319 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2324 if (cfg->verbose_level > 0) {
2325 char* nm = mono_method_get_full_name (cfg->method);
2326 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2328 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2333 gboolean is_generic = FALSE;
2335 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2336 mono_class_is_gtd (cfg->method->klass) || mono_class_is_ginst (cfg->method->klass)) {
2341 g_assert (is_generic);
2344 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2345 mono_arch_save_unwind_info (cfg);
2348 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2353 for (ji = cfg->patch_info; ji; ji = ji->next) {
2354 if (cfg->compile_aot) {
2356 case MONO_PATCH_INFO_BB:
2357 case MONO_PATCH_INFO_LABEL:
2360 /* No need to patch these */
2365 if (ji->type == MONO_PATCH_INFO_NONE)
2368 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2369 if (!mono_error_ok (&cfg->error)) {
2370 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2373 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2377 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors, &cfg->error);
2378 if (!is_ok (&cfg->error)) {
2379 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2384 if (cfg->method->dynamic) {
2385 if (mono_using_xdebug)
2386 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2388 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2390 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2392 #if defined(__native_client_codegen__) && defined(__native_client__)
2393 cfg->native_code = code_dest;
2395 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2397 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2399 mono_debug_close_method (cfg);
2401 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2402 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2407 compute_reachable (MonoBasicBlock *bb)
2411 if (!(bb->flags & BB_VISITED)) {
2412 bb->flags |= BB_VISITED;
2413 for (i = 0; i < bb->out_count; ++i)
2414 compute_reachable (bb->out_bb [i]);
2418 static void mono_bb_ordering (MonoCompile *cfg)
2421 /* Depth-first ordering on basic blocks */
2422 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2424 cfg->max_block_num = cfg->num_bblocks;
2426 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2427 if (cfg->num_bblocks != dfn + 1) {
2430 cfg->num_bblocks = dfn + 1;
2432 /* remove unreachable code, because the code in them may be
2433 * inconsistent (access to dead variables for example) */
2434 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2435 bb->flags &= ~BB_VISITED;
2436 compute_reachable (cfg->bb_entry);
2437 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2438 if (bb->flags & BB_EXCEPTION_HANDLER)
2439 compute_reachable (bb);
2440 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2441 if (!(bb->flags & BB_VISITED)) {
2442 if (cfg->verbose_level > 1)
2443 g_print ("found unreachable code in BB%d\n", bb->block_num);
2444 bb->code = bb->last_ins = NULL;
2445 while (bb->out_count)
2446 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2449 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2450 bb->flags &= ~BB_VISITED;
2455 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2458 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2459 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2461 MONO_INST_NEW (cfg, ins, OP_BR);
2462 MONO_ADD_INS (bb, ins);
2463 ins->inst_target_bb = bb->next_bb;
2469 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2472 MonoMethodHeader *header;
2474 MonoJitInfoFlags flags = JIT_INFO_NONE;
2475 int num_clauses, num_holes = 0;
2476 guint32 stack_size = 0;
2478 g_assert (method_to_compile == cfg->method);
2479 header = cfg->header;
2482 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2484 if (cfg->arch_eh_jit_info) {
2485 MonoJitArgumentInfo *arg_info;
2486 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2489 * This cannot be computed during stack walking, as
2490 * mono_arch_get_argument_info () is not signal safe.
2492 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2493 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2496 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2499 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2500 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2502 if (cfg->thunk_area)
2503 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2505 if (cfg->try_block_holes) {
2506 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2507 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2508 MonoExceptionClause *ec = hole->clause;
2509 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2510 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2511 g_assert (clause_last_bb);
2513 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2514 if (clause_last_bb->native_offset != hole_end)
2518 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2519 if (G_UNLIKELY (cfg->verbose_level >= 4))
2520 printf ("Number of try block holes %d\n", num_holes);
2523 if (COMPILE_LLVM (cfg))
2524 num_clauses = cfg->llvm_ex_info_len;
2526 num_clauses = header->num_clauses;
2528 if (cfg->method->dynamic)
2529 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2531 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2532 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2533 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2535 if (COMPILE_LLVM (cfg))
2536 jinfo->from_llvm = TRUE;
2540 MonoGenericJitInfo *gi;
2541 GSList *loclist = NULL;
2543 gi = mono_jit_info_get_generic_jit_info (jinfo);
2546 if (cfg->method->dynamic)
2547 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2549 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2550 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2552 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2553 mini_method_get_context (method_to_compile)->method_inst ||
2554 method_to_compile->klass->valuetype) {
2555 g_assert (cfg->rgctx_var);
2560 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2561 mini_method_get_context (method_to_compile)->method_inst ||
2562 method_to_compile->klass->valuetype) {
2563 inst = cfg->rgctx_var;
2564 if (!COMPILE_LLVM (cfg))
2565 g_assert (inst->opcode == OP_REGOFFSET);
2566 loclist = cfg->rgctx_loclist;
2568 inst = cfg->args [0];
2569 loclist = cfg->this_loclist;
2573 /* Needed to handle async exceptions */
2577 gi->nlocs = g_slist_length (loclist);
2578 if (cfg->method->dynamic)
2579 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2581 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2583 for (l = loclist; l; l = l->next) {
2584 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2589 if (COMPILE_LLVM (cfg)) {
2590 g_assert (cfg->llvm_this_reg != -1);
2591 gi->this_in_reg = 0;
2592 gi->this_reg = cfg->llvm_this_reg;
2593 gi->this_offset = cfg->llvm_this_offset;
2594 } else if (inst->opcode == OP_REGVAR) {
2595 gi->this_in_reg = 1;
2596 gi->this_reg = inst->dreg;
2598 g_assert (inst->opcode == OP_REGOFFSET);
2600 g_assert (inst->inst_basereg == X86_EBP);
2601 #elif defined(TARGET_AMD64)
2602 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2604 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2606 gi->this_in_reg = 0;
2607 gi->this_reg = inst->inst_basereg;
2608 gi->this_offset = inst->inst_offset;
2613 MonoTryBlockHoleTableJitInfo *table;
2616 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2617 table->num_holes = (guint16)num_holes;
2619 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2620 guint32 start_bb_offset;
2621 MonoTryBlockHoleJitInfo *hole;
2622 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2623 MonoExceptionClause *ec = hole_data->clause;
2624 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2625 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2626 g_assert (clause_last_bb);
2628 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2629 if (clause_last_bb->native_offset == hole_end)
2632 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2633 hole = &table->holes [i++];
2634 hole->clause = hole_data->clause - &header->clauses [0];
2635 hole->offset = (guint32)hole_data->start_offset;
2636 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2638 if (G_UNLIKELY (cfg->verbose_level >= 4))
2639 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2641 g_assert (i == num_holes);
2644 if (jinfo->has_arch_eh_info) {
2645 MonoArchEHJitInfo *info;
2647 info = mono_jit_info_get_arch_eh_info (jinfo);
2649 info->stack_size = stack_size;
2652 if (cfg->thunk_area) {
2653 MonoThunkJitInfo *info;
2655 info = mono_jit_info_get_thunk_info (jinfo);
2656 info->thunks_offset = cfg->thunks_offset;
2657 info->thunks_size = cfg->thunk_area;
2660 if (COMPILE_LLVM (cfg)) {
2662 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2663 } else if (header->num_clauses) {
2666 for (i = 0; i < header->num_clauses; i++) {
2667 MonoExceptionClause *ec = &header->clauses [i];
2668 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2669 MonoBasicBlock *tblock;
2670 MonoInst *exvar, *spvar;
2672 ei->flags = ec->flags;
2674 if (G_UNLIKELY (cfg->verbose_level >= 4))
2675 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);
2678 * The spvars are needed by mono_arch_install_handler_block_guard ().
2680 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2683 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2684 spvar = mono_find_spvar_for_region (cfg, region);
2686 ei->exvar_offset = spvar->inst_offset;
2688 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2689 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2692 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2693 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2695 ei->data.filter = cfg->native_code + tblock->native_offset;
2697 ei->data.catch_class = ec->data.catch_class;
2700 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2702 g_assert (tblock->native_offset);
2703 ei->try_start = cfg->native_code + tblock->native_offset;
2704 if (tblock->extend_try_block) {
2706 * Extend the try block backwards to include parts of the previous call
2709 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
2711 if (ec->try_offset + ec->try_len < header->code_size)
2712 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2714 tblock = cfg->bb_exit;
2715 if (G_UNLIKELY (cfg->verbose_level >= 4))
2716 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
2718 if (!tblock->native_offset) {
2720 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2721 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2722 if (bb && bb->native_offset) {
2728 ei->try_end = cfg->native_code + tblock->native_offset;
2729 g_assert (tblock->native_offset);
2730 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2732 ei->handler_start = cfg->native_code + tblock->native_offset;
2734 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2735 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2736 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2737 if (hole->clause == ec && hole_end == ei->try_end) {
2738 if (G_UNLIKELY (cfg->verbose_level >= 4))
2739 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2741 ei->try_end = cfg->native_code + hole->start_offset;
2746 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2748 if (ec->handler_offset + ec->handler_len < header->code_size) {
2749 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2750 if (tblock->native_offset) {
2751 end_offset = tblock->native_offset;
2755 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2756 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2757 if (bb && bb->native_offset) {
2762 end_offset = tblock->native_offset + tblock->native_length;
2765 end_offset = cfg->epilog_begin;
2767 ei->data.handler_end = cfg->native_code + end_offset;
2772 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2774 for (i = 0; i < jinfo->num_clauses; i++) {
2775 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2776 int start = (guint8*)ei->try_start - cfg->native_code;
2777 int end = (guint8*)ei->try_end - cfg->native_code;
2778 int handler = (guint8*)ei->handler_start - cfg->native_code;
2779 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2781 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2785 if (cfg->encoded_unwind_ops) {
2786 /* Generated by LLVM */
2787 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2788 g_free (cfg->encoded_unwind_ops);
2789 } else if (cfg->unwind_ops) {
2791 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2792 guint32 unwind_desc;
2794 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2796 if (cfg->has_unwind_info_for_epilog) {
2797 MonoArchEHJitInfo *info;
2799 info = mono_jit_info_get_arch_eh_info (jinfo);
2801 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2803 jinfo->unwind_info = unwind_desc;
2804 g_free (unwind_info);
2806 jinfo->unwind_info = cfg->used_int_regs;
2812 /* Return whenever METHOD is a gsharedvt method */
2814 is_gsharedvt_method (MonoMethod *method)
2816 MonoGenericContext *context;
2817 MonoGenericInst *inst;
2820 if (!method->is_inflated)
2822 context = mono_method_get_context (method);
2823 inst = context->class_inst;
2825 for (i = 0; i < inst->type_argc; ++i)
2826 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2829 inst = context->method_inst;
2831 for (i = 0; i < inst->type_argc; ++i)
2832 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2839 is_open_method (MonoMethod *method)
2841 MonoGenericContext *context;
2843 if (!method->is_inflated)
2845 context = mono_method_get_context (method);
2846 if (context->class_inst && context->class_inst->is_open)
2848 if (context->method_inst && context->method_inst->is_open)
2854 mono_insert_nop_in_empty_bb (MonoCompile *cfg)
2857 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2861 MONO_INST_NEW (cfg, nop, OP_NOP);
2862 MONO_ADD_INS (bb, nop);
2866 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
2868 MonoInst *poll_addr, *ins;
2870 if (cfg->disable_gc_safe_points)
2873 if (cfg->verbose_level > 1)
2874 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
2876 #if defined(__native_client_codegen__)
2877 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
2879 g_assert (mono_threads_is_coop_enabled ());
2880 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
2883 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
2884 ins->sreg1 = poll_addr->dreg;
2886 if (bblock->flags & BB_EXCEPTION_HANDLER) {
2887 MonoInst *eh_op = bblock->code;
2889 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
2892 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
2893 // skip all EH relateds ops
2894 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
2896 next_eh_op = eh_op->next;
2900 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
2901 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2902 } else if (bblock == cfg->bb_entry) {
2903 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
2904 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2907 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
2908 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2913 This code inserts safepoints into managed code at important code paths.
2916 -the first basic block
2917 -landing BB for exception handlers
2922 mono_insert_safepoints (MonoCompile *cfg)
2926 #if !defined(__native_client_codegen__)
2927 if (!mono_threads_is_coop_enabled ())
2931 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2932 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2933 #if defined(__native_client__) || defined(__native_client_codegen__)
2934 gpointer poll_func = &mono_nacl_gc;
2936 g_assert (mono_threads_is_coop_enabled ());
2937 gpointer poll_func = &mono_threads_state_poll;
2940 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
2941 if (cfg->verbose_level > 1)
2942 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
2947 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
2948 if (cfg->verbose_level > 1)
2949 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
2953 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2954 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2956 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
2957 (info->d.icall.func == mono_thread_interruption_checkpoint ||
2958 info->d.icall.func == mono_threads_exit_gc_safe_region_unbalanced)) {
2959 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
2960 if (cfg->verbose_level > 1)
2961 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
2966 if (cfg->verbose_level > 1)
2967 printf ("INSERTING SAFEPOINTS\n");
2968 if (cfg->verbose_level > 2)
2969 mono_print_code (cfg, "BEFORE SAFEPOINTS");
2971 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2972 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
2973 mono_create_gc_safepoint (cfg, bb);
2976 if (cfg->verbose_level > 2)
2977 mono_print_code (cfg, "AFTER SAFEPOINTS");
2983 mono_insert_branches_between_bblocks (MonoCompile *cfg)
2987 /* Add branches between non-consecutive bblocks */
2988 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2989 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
2990 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
2991 /* we are careful when inverting, since bugs like #59580
2992 * could show up when dealing with NaNs.
2994 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
2995 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
2996 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
2997 bb->last_ins->inst_false_bb = tmp;
2999 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3001 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3002 inst->opcode = OP_BR;
3003 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3004 mono_bblock_add_inst (bb, inst);
3009 if (cfg->verbose_level >= 4) {
3010 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3011 MonoInst *tree = bb->code;
3012 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3015 for (; tree; tree = tree->next) {
3016 mono_print_ins_index (-1, tree);
3022 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3023 bb->max_vreg = cfg->next_vreg;
3028 init_backend (MonoBackend *backend)
3030 #ifdef MONO_ARCH_NEED_GOT_VAR
3031 backend->need_got_var = 1;
3033 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
3034 backend->have_card_table_wb = 1;
3036 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3037 backend->have_op_generic_class_init = 1;
3039 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3040 backend->emulate_mul_div = 1;
3042 #ifdef MONO_ARCH_EMULATE_DIV
3043 backend->emulate_div = 1;
3045 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3046 backend->emulate_long_shift_opts = 1;
3048 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3049 backend->have_objc_get_selector = 1;
3051 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE
3052 backend->have_generalized_imt_trampoline = 1;
3054 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3055 backend->gshared_supported = 1;
3057 if (MONO_ARCH_USE_FPSTACK)
3058 backend->use_fpstack = 1;
3059 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3060 backend->have_liverange_ops = 1;
3062 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3063 backend->have_op_tail_call = 1;
3065 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3066 backend->monitor_enter_adjustment = 1;
3068 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3070 #if defined(__mono_ilp32__)
3073 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3074 backend->have_dummy_init = 1;
3076 #ifdef MONO_ARCH_NEED_DIV_CHECK
3077 backend->need_div_check = 1;
3079 #ifdef NO_UNALIGNED_ACCESS
3080 backend->no_unaligned_access = 1;
3082 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3083 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3085 #ifdef MONO_ARCH_NO_DIV_WITH_MUL
3086 backend->disable_div_with_mul = 1;
3091 * mini_method_compile:
3092 * @method: the method to compile
3093 * @opts: the optimization flags to use
3094 * @domain: the domain where the method will be compiled in
3095 * @flags: compilation flags
3096 * @parts: debug flag
3098 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3099 * field in the returned struct to see if compilation succeded.
3102 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3104 MonoMethodHeader *header;
3105 MonoMethodSignature *sig;
3108 int i, code_size_ratio;
3109 gboolean try_generic_shared, try_llvm = FALSE;
3110 MonoMethod *method_to_compile, *method_to_register;
3111 gboolean method_is_gshared = FALSE;
3112 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3113 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3114 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3115 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3116 gboolean gsharedvt_method = FALSE;
3118 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3120 static gboolean verbose_method_inited;
3121 static const char *verbose_method_name;
3123 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3124 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3125 mono_profiler_method_jit (method);
3126 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3127 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3129 gsharedvt_method = is_gsharedvt_method (method);
3132 * In AOT mode, method can be the following:
3133 * - a gsharedvt method.
3134 * - a method inflated with type parameters. This is for ref/partial sharing.
3135 * - a method inflated with concrete types.
3138 if (is_open_method (method)) {
3139 try_generic_shared = TRUE;
3140 method_is_gshared = TRUE;
3142 try_generic_shared = FALSE;
3144 g_assert (opts & MONO_OPT_GSHARED);
3146 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3147 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3148 if (mini_is_gsharedvt_sharable_method (method)) {
3150 if (!mono_debug_count ())
3151 try_generic_shared = FALSE;
3157 if (try_generic_shared && !mono_debug_count ())
3158 try_generic_shared = FALSE;
3161 if (opts & MONO_OPT_GSHARED) {
3162 if (try_generic_shared)
3163 mono_stats.generics_sharable_methods++;
3164 else if (mono_method_is_generic_impl (method))
3165 mono_stats.generics_unsharable_methods++;
3169 try_llvm = mono_use_llvm || llvm;
3173 if (method_is_gshared) {
3174 method_to_compile = method;
3176 if (try_generic_shared) {
3177 method_to_compile = mini_get_shared_method (method);
3178 g_assert (method_to_compile);
3180 method_to_compile = method;
3184 cfg = g_new0 (MonoCompile, 1);
3185 cfg->method = method_to_compile;
3186 cfg->mempool = mono_mempool_new ();
3188 cfg->prof_options = mono_profiler_get_events ();
3189 cfg->run_cctors = run_cctors;
3190 cfg->domain = domain;
3191 cfg->verbose_level = mini_verbose;
3192 cfg->compile_aot = compile_aot;
3193 cfg->full_aot = full_aot;
3194 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3195 cfg->skip_visibility = method->skip_visibility;
3196 cfg->orig_method = method;
3197 cfg->gen_seq_points = !debug_options.no_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3198 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3199 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3200 cfg->backend = current_backend;
3202 #ifdef PLATFORM_ANDROID
3203 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3204 /* FIXME: Why is this needed */
3205 cfg->gen_seq_points = FALSE;
3206 cfg->gen_sdb_seq_points = FALSE;
3209 if (cfg->method->wrapper_type == MONO_WRAPPER_ALLOC) {
3210 /* We can't have seq points inside gc critical regions */
3211 cfg->gen_seq_points = FALSE;
3212 cfg->gen_sdb_seq_points = FALSE;
3214 /* coop / nacl requires loop detection to happen */
3215 #if defined(__native_client_codegen__)
3216 cfg->opt |= MONO_OPT_LOOP;
3218 if (mono_threads_is_coop_enabled ())
3219 cfg->opt |= MONO_OPT_LOOP;
3221 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3222 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3223 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3224 cfg->disable_direct_icalls = disable_direct_icalls;
3225 cfg->direct_pinvoke = (flags & JIT_FLAG_DIRECT_PINVOKE) != 0;
3226 if (try_generic_shared)
3227 cfg->gshared = TRUE;
3228 cfg->compile_llvm = try_llvm;
3229 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3230 if (cfg->compile_aot)
3231 cfg->method_index = aot_method_index;
3234 if (!mono_debug_count ())
3235 cfg->opt &= ~MONO_OPT_FLOAT32;
3238 cfg->opt &= ~MONO_OPT_SIMD;
3239 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3240 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3242 if (cfg->gen_seq_points)
3243 cfg->seq_points = g_ptr_array_new ();
3244 mono_error_init (&cfg->error);
3246 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || mono_class_is_gtd (method->klass) || method_is_gshared)) {
3247 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3251 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3252 MonoMethodInflated *inflated;
3253 MonoGenericContext *context;
3255 if (gsharedvt_method) {
3256 g_assert (method->is_inflated);
3257 inflated = (MonoMethodInflated*)method;
3258 context = &inflated->context;
3260 /* We are compiling a gsharedvt method directly */
3261 g_assert (compile_aot);
3263 g_assert (method_to_compile->is_inflated);
3264 inflated = (MonoMethodInflated*)method_to_compile;
3265 context = &inflated->context;
3268 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3269 cfg->gsctx_context = context;
3271 cfg->gsharedvt = TRUE;
3272 if (!cfg->llvm_only) {
3273 cfg->disable_llvm = TRUE;
3274 cfg->exception_message = g_strdup ("gsharedvt");
3279 method_to_register = method_to_compile;
3281 g_assert (method == method_to_compile);
3282 method_to_register = method;
3284 cfg->method_to_register = method_to_register;
3286 mono_error_init (&err);
3287 sig = mono_method_signature_checked (cfg->method, &err);
3289 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3290 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3291 mono_error_cleanup (&err);
3292 if (MONO_METHOD_COMPILE_END_ENABLED ())
3293 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3297 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3299 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3300 if (MONO_METHOD_COMPILE_END_ENABLED ())
3301 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3307 static gboolean inited;
3313 * Check for methods which cannot be compiled by LLVM early, to avoid
3314 * the extra compilation pass.
3316 if (COMPILE_LLVM (cfg)) {
3317 mono_llvm_check_method_supported (cfg);
3318 if (cfg->disable_llvm) {
3319 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3320 //nm = mono_method_full_name (cfg->method, TRUE);
3321 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3324 if (cfg->llvm_only) {
3325 g_free (cfg->exception_message);
3326 cfg->disable_aot = TRUE;
3329 mono_destroy_compile (cfg);
3331 goto restart_compile;
3337 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3338 if (debug_options.mdb_optimizations) {
3339 cfg->disable_reuse_registers = TRUE;
3340 cfg->disable_reuse_stack_slots = TRUE;
3342 * This decreases the change the debugger will read registers/stack slots which are
3343 * not yet initialized.
3345 cfg->disable_initlocals_opt = TRUE;
3347 cfg->extend_live_ranges = TRUE;
3349 /* The debugger needs all locals to be on the stack or in a global register */
3350 cfg->disable_vreg_to_lvreg = TRUE;
3352 /* Don't remove unused variables when running inside the debugger since the user
3353 * may still want to view them. */
3354 cfg->disable_deadce_vars = TRUE;
3356 cfg->opt &= ~MONO_OPT_DEADCE;
3357 cfg->opt &= ~MONO_OPT_INLINE;
3358 cfg->opt &= ~MONO_OPT_COPYPROP;
3359 cfg->opt &= ~MONO_OPT_CONSPROP;
3361 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3362 cfg->disable_out_of_line_bblocks = TRUE;
3365 if (mono_using_xdebug) {
3367 * Make each variable use its own register/stack slot and extend
3368 * their liveness to cover the whole method, making them displayable
3369 * in gdb even after they are dead.
3371 cfg->disable_reuse_registers = TRUE;
3372 cfg->disable_reuse_stack_slots = TRUE;
3373 cfg->extend_live_ranges = TRUE;
3374 cfg->compute_precise_live_ranges = TRUE;
3377 mini_gc_init_cfg (cfg);
3379 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
3380 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3382 /* These wrappers are using linkonce linkage, so they can't access GOT slots */
3383 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) {
3384 cfg->disable_gc_safe_points = TRUE;
3385 /* This is safe, these wrappers only store to the stack */
3386 cfg->gen_write_barriers = FALSE;
3390 if (COMPILE_LLVM (cfg)) {
3391 cfg->opt |= MONO_OPT_ABCREM;
3394 if (!verbose_method_inited) {
3395 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3396 verbose_method_inited = TRUE;
3398 if (verbose_method_name) {
3399 const char *name = verbose_method_name;
3401 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3402 MonoMethodDesc *desc;
3404 desc = mono_method_desc_new (name, TRUE);
3405 if (mono_method_desc_full_match (desc, cfg->method)) {
3406 cfg->verbose_level = 4;
3408 mono_method_desc_free (desc);
3410 if (strcmp (cfg->method->name, name) == 0)
3411 cfg->verbose_level = 4;
3415 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3417 if (cfg->verbose_level > 0) {
3420 method_name = mono_method_get_full_name (method);
3421 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3423 if (COMPILE_LLVM (cfg))
3424 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3425 else if (cfg->gsharedvt)
3426 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3427 else if (cfg->gshared)
3428 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3430 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3432 g_free (method_name);
3435 if (cfg->opt & MONO_OPT_ABCREM)
3436 cfg->opt |= MONO_OPT_SSA;
3438 cfg->rs = mono_regstate_new ();
3439 cfg->next_vreg = cfg->rs->next_vreg;
3441 /* FIXME: Fix SSA to handle branches inside bblocks */
3442 if (cfg->opt & MONO_OPT_SSA)
3443 cfg->enable_extended_bblocks = FALSE;
3446 * FIXME: This confuses liveness analysis because variables which are assigned after
3447 * a branch inside a bblock become part of the kill set, even though the assignment
3448 * might not get executed. This causes the optimize_initlocals pass to delete some
3449 * assignments which are needed.
3450 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3453 //cfg->enable_extended_bblocks = TRUE;
3455 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3456 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3457 if (mini_get_debug_options ()->break_on_unverified)
3463 * create MonoInst* which represents arguments and local variables
3465 mono_compile_create_vars (cfg);
3467 mono_cfg_dump_create_context (cfg);
3468 mono_cfg_dump_begin_group (cfg);
3470 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));
3471 mono_cfg_dump_ir (cfg, "method-to-ir");
3473 if (cfg->gdump_ctx != NULL) {
3474 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3475 mono_insert_nop_in_empty_bb (cfg);
3476 mono_cfg_dump_ir (cfg, "mono_insert_nop_in_empty_bb");
3480 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3482 if (MONO_METHOD_COMPILE_END_ENABLED ())
3483 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3486 mono_destroy_compile (cfg);
3487 try_generic_shared = FALSE;
3488 goto restart_compile;
3490 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3492 if (MONO_METHOD_COMPILE_END_ENABLED ())
3493 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3494 /* cfg contains the details of the failure, so let the caller cleanup */
3498 cfg->stat_basic_blocks += cfg->num_bblocks;
3500 if (COMPILE_LLVM (cfg)) {
3503 /* The IR has to be in SSA form for LLVM */
3504 cfg->opt |= MONO_OPT_SSA;
3508 // Allow SSA on the result value
3509 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3511 // Add an explicit return instruction referencing the return value
3512 MONO_INST_NEW (cfg, ins, OP_SETRET);
3513 ins->sreg1 = cfg->ret->dreg;
3515 MONO_ADD_INS (cfg->bb_exit, ins);
3518 cfg->opt &= ~MONO_OPT_LINEARS;
3521 cfg->opt &= ~MONO_OPT_BRANCH;
3524 /* todo: remove code when we have verified that the liveness for try/catch blocks
3528 * Currently, this can't be commented out since exception blocks are not
3529 * processed during liveness analysis.
3530 * It is also needed, because otherwise the local optimization passes would
3531 * delete assignments in cases like this:
3533 * <something which throws>
3535 * This also allows SSA to be run on methods containing exception clauses, since
3536 * SSA will ignore variables marked VOLATILE.
3538 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3539 mono_cfg_dump_ir (cfg, "liveness_handle_exception_clauses");
3541 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3542 mono_cfg_dump_ir (cfg, "handle_out_of_line_bblock");
3544 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3546 if (!COMPILE_LLVM (cfg)) {
3547 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3548 mono_cfg_dump_ir (cfg, "decompose_long_opts");
3551 /* Should be done before branch opts */
3552 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP)) {
3553 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3554 mono_cfg_dump_ir (cfg, "local_cprop");
3557 if (cfg->flags & MONO_CFG_HAS_TYPE_CHECK) {
3558 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_typechecks, mono_decompose_typechecks (cfg));
3559 if (cfg->gdump_ctx != NULL) {
3560 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3561 mono_insert_nop_in_empty_bb (cfg);
3563 mono_cfg_dump_ir (cfg, "decompose_typechecks");
3567 * Should be done after cprop which can do strength reduction on
3568 * some of these ops, after propagating immediates.
3570 if (cfg->has_emulated_ops) {
3571 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3572 mono_cfg_dump_ir (cfg, "local_emulate_ops");
3575 if (cfg->opt & MONO_OPT_BRANCH) {
3576 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3577 mono_cfg_dump_ir (cfg, "optimize_branches");
3580 /* This must be done _before_ global reg alloc and _after_ decompose */
3581 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3582 mono_cfg_dump_ir (cfg, "handle_global_vregs");
3583 if (cfg->opt & MONO_OPT_DEADCE) {
3584 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3585 mono_cfg_dump_ir (cfg, "local_deadce");
3587 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS) {
3588 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3589 mono_cfg_dump_ir (cfg, "local_alias_analysis");
3591 /* Disable this for LLVM to make the IR easier to handle */
3592 if (!COMPILE_LLVM (cfg)) {
3593 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3594 mono_cfg_dump_ir (cfg, "if_conversion");
3597 mono_threads_safepoint ();
3599 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3600 mono_cfg_dump_ir (cfg, "bb_ordering");
3602 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3604 * we disable some optimizations if there are too many variables
3605 * because JIT time may become too expensive. The actual number needs
3606 * to be tweaked and eventually the non-linear algorithms should be fixed.
3608 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3609 cfg->disable_ssa = TRUE;
3612 if (cfg->opt & MONO_OPT_LOOP) {
3613 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3614 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3617 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3618 mono_cfg_dump_ir (cfg, "insert_safepoints");
3620 /* after method_to_ir */
3622 if (MONO_METHOD_COMPILE_END_ENABLED ())
3623 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3628 if (header->num_clauses)
3629 cfg->disable_ssa = TRUE;
3632 //#define DEBUGSSA "logic_run"
3633 //#define DEBUGSSA_CLASS "Tests"
3636 if (!cfg->disable_ssa) {
3637 mono_local_cprop (cfg);
3640 mono_ssa_compute (cfg);
3644 if (cfg->opt & MONO_OPT_SSA) {
3645 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3647 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3648 mono_cfg_dump_ir (cfg, "ssa_compute");
3651 if (cfg->verbose_level >= 2) {
3658 /* after SSA translation */
3660 if (MONO_METHOD_COMPILE_END_ENABLED ())
3661 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3665 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3666 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3668 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3669 mono_cfg_dump_ir (cfg, "ssa_cprop");
3675 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3676 //mono_ssa_strength_reduction (cfg);
3678 if (cfg->opt & MONO_OPT_DEADCE) {
3679 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3680 mono_cfg_dump_ir (cfg, "ssa_deadce");
3683 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM)) {
3684 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3685 mono_cfg_dump_ir (cfg, "perform_abc_removal");
3688 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3689 mono_cfg_dump_ir (cfg, "ssa_remove");
3690 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3691 mono_cfg_dump_ir (cfg, "local_cprop2");
3692 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3693 mono_cfg_dump_ir (cfg, "handle_global_vregs2");
3694 if (cfg->opt & MONO_OPT_DEADCE) {
3695 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3696 mono_cfg_dump_ir (cfg, "local_deadce2");
3699 if (cfg->opt & MONO_OPT_BRANCH) {
3700 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3701 mono_cfg_dump_ir (cfg, "optimize_branches2");
3706 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3707 mono_ssa_loop_invariant_code_motion (cfg);
3708 mono_cfg_dump_ir (cfg, "loop_invariant_code_motion");
3709 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3710 if (cfg->opt & MONO_OPT_ABCREM) {
3711 mono_perform_abc_removal (cfg);
3712 mono_cfg_dump_ir (cfg, "abc_removal");
3716 /* after SSA removal */
3718 if (MONO_METHOD_COMPILE_END_ENABLED ())
3719 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3723 if (cfg->llvm_only && cfg->gsharedvt)
3724 mono_ssa_remove_gsharedvt (cfg);
3726 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3727 if (COMPILE_SOFT_FLOAT (cfg))
3728 mono_decompose_soft_float (cfg);
3730 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3731 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS) {
3732 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3733 mono_cfg_dump_ir (cfg, "decompose_array_access_opts");
3737 #ifndef MONO_ARCH_GOT_REG
3742 g_assert (cfg->got_var_allocated);
3745 * Allways allocate the GOT var to a register, because keeping it
3746 * in memory will increase the number of live temporaries in some
3747 * code created by inssel.brg, leading to the well known spills+
3748 * branches problem. Testcase: mcs crash in
3749 * System.MonoCustomAttrs:GetCustomAttributes.
3751 #ifdef MONO_ARCH_GOT_REG
3752 got_reg = MONO_ARCH_GOT_REG;
3754 regs = mono_arch_get_global_int_regs (cfg);
3756 got_reg = GPOINTER_TO_INT (regs->data);
3759 cfg->got_var->opcode = OP_REGVAR;
3760 cfg->got_var->dreg = got_reg;
3761 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3765 * Have to call this again to process variables added since the first call.
3767 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3769 if (cfg->opt & MONO_OPT_LINEARS) {
3770 GList *vars, *regs, *l;
3772 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3773 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3774 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3775 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3777 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3778 regs = mono_arch_get_global_int_regs (cfg);
3779 /* Remove the reg reserved for holding the GOT address */
3781 for (l = regs; l; l = l->next) {
3782 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3783 regs = g_list_delete_link (regs, l);
3788 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
3789 mono_cfg_dump_ir (cfg, "linear_scan");
3793 //mono_print_code (cfg, "");
3797 /* variables are allocated after decompose, since decompose could create temps */
3798 if (!COMPILE_LLVM (cfg)) {
3799 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
3800 mono_cfg_dump_ir (cfg, "arch_allocate_vars");
3801 if (cfg->exception_type)
3806 mono_allocate_gsharedvt_vars (cfg);
3808 if (!COMPILE_LLVM (cfg)) {
3809 gboolean need_local_opts;
3810 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
3811 mono_cfg_dump_ir (cfg, "spill_global_vars");
3813 if (need_local_opts || cfg->compile_aot) {
3814 /* To optimize code created by spill_global_vars */
3815 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
3816 if (cfg->opt & MONO_OPT_DEADCE)
3817 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
3818 mono_cfg_dump_ir (cfg, "needs_local_opts");
3822 mono_insert_branches_between_bblocks (cfg);
3824 if (COMPILE_LLVM (cfg)) {
3828 /* The IR has to be in SSA form for LLVM */
3829 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3830 cfg->exception_message = g_strdup ("SSA disabled.");
3831 cfg->disable_llvm = TRUE;
3834 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3835 mono_decompose_array_access_opts (cfg);
3837 if (!cfg->disable_llvm)
3838 mono_llvm_emit_method (cfg);
3839 if (cfg->disable_llvm) {
3840 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3841 //nm = mono_method_full_name (cfg->method, TRUE);
3842 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3845 if (cfg->llvm_only) {
3846 cfg->disable_aot = TRUE;
3849 mono_destroy_compile (cfg);
3851 goto restart_compile;
3854 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3855 nm = mono_method_full_name (cfg->method, TRUE);
3856 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3858 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3863 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
3864 mono_cfg_dump_ir (cfg, "codegen");
3865 if (cfg->exception_type)
3869 if (COMPILE_LLVM (cfg))
3870 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3872 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3874 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
3876 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3877 if (cfg->extend_live_ranges) {
3878 /* Extend live ranges to cover the whole method */
3879 for (i = 0; i < cfg->num_varinfo; ++i)
3880 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3884 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
3885 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
3887 if (!cfg->compile_aot) {
3888 mono_save_xdebug_info (cfg);
3889 mono_lldb_save_method_info (cfg);
3892 if (cfg->verbose_level >= 2) {
3893 char *id = mono_method_full_name (cfg->method, FALSE);
3894 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3898 if (!cfg->compile_aot) {
3899 mono_domain_lock (cfg->domain);
3900 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
3902 if (cfg->method->dynamic)
3903 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
3904 mono_domain_unlock (cfg->domain);
3909 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
3912 /* collect statistics */
3913 #ifndef DISABLE_PERFCOUNTERS
3914 mono_perfcounters->jit_methods++;
3915 mono_perfcounters->jit_bytes += header->code_size;
3917 mono_jit_stats.allocated_code_size += cfg->code_len;
3918 code_size_ratio = cfg->code_len;
3919 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
3920 mono_jit_stats.biggest_method_size = code_size_ratio;
3921 g_free (mono_jit_stats.biggest_method);
3922 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3924 code_size_ratio = (code_size_ratio * 100) / header->code_size;
3925 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
3926 mono_jit_stats.max_code_size_ratio = code_size_ratio;
3927 g_free (mono_jit_stats.max_ratio_method);
3928 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3930 mono_jit_stats.native_code_size += cfg->code_len;
3932 if (MONO_METHOD_COMPILE_END_ENABLED ())
3933 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3935 mono_cfg_dump_close_group (cfg);
3941 mini_class_has_reference_variant_generic_argument (MonoCompile *cfg, MonoClass *klass, int context_used)
3944 MonoGenericContainer *container;
3945 MonoGenericInst *ginst;
3947 if (mono_class_is_ginst (klass)) {
3948 container = mono_class_get_generic_container (mono_class_get_generic_class (klass)->container_class);
3949 ginst = mono_class_get_generic_class (klass)->context.class_inst;
3950 } else if (mono_class_is_gtd (klass) && context_used) {
3951 container = mono_class_get_generic_container (klass);
3952 ginst = container->context.class_inst;
3957 for (i = 0; i < container->type_argc; ++i) {
3959 if (!(mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT)))
3961 type = ginst->type_argv [i];
3962 if (mini_type_is_reference (type))
3969 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
3971 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
3975 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
3977 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
3978 hole->clause = clause;
3979 hole->start_offset = start - cfg->native_code;
3980 hole->basic_block = bb;
3982 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
3986 mono_cfg_set_exception (MonoCompile *cfg, int type)
3988 cfg->exception_type = type;
3991 /* Assumes ownership of the MSG argument */
3993 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
3995 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3996 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", "%s", msg);
3999 #endif /* DISABLE_JIT */
4002 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
4004 MonoDomain *domain = mono_get_root_domain ();
4009 if (info->uw_info) {
4010 uw_info = info->uw_info;
4011 info_len = info->uw_info_len;
4013 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
4016 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
4017 jinfo->d.method = wrapper;
4018 jinfo->code_start = info->code;
4019 jinfo->code_size = info->code_size;
4020 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
4028 GTimer *mono_time_track_start ()
4030 return g_timer_new ();
4033 void mono_time_track_end (double *time, GTimer *timer)
4035 g_timer_stop (timer);
4036 *time += g_timer_elapsed (timer, NULL);
4037 g_timer_destroy (timer);
4040 void mono_update_jit_stats (MonoCompile *cfg)
4042 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4043 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4044 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4045 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4046 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4047 mono_jit_stats.regvars += cfg->stat_n_regvars;
4048 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4049 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4050 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4054 * mono_jit_compile_method_inner:
4056 * Main entry point for the JIT.
4059 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4062 gpointer code = NULL;
4063 MonoJitInfo *jinfo, *info;
4065 MonoException *ex = NULL;
4066 guint32 prof_options;
4068 MonoMethod *prof_method, *shared;
4070 mono_error_init (error);
4072 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4073 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4075 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4077 if (!piinfo->addr) {
4078 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4079 piinfo->addr = mono_lookup_internal_call (method);
4080 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4082 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);
4084 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);
4087 mono_lookup_pinvoke_call (method, NULL, NULL);
4089 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4090 gpointer compiled_method = mono_compile_method_checked (nm, error);
4091 return_val_if_nok (error, NULL);
4092 code = mono_get_addr_from_ftnptr (compiled_method);
4093 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4095 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4097 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4099 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4100 const char *name = method->name;
4101 char *full_name, *msg;
4104 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4105 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4106 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4109 * We need to make sure this wrapper
4110 * is compiled because it might end up
4111 * in an (M)RGCTX if generic sharing
4112 * is enabled, and would be called
4113 * indirectly. If it were a
4114 * trampoline we'd try to patch that
4115 * indirect call, which is not
4118 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4119 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4120 if (mono_llvm_only) {
4121 nm = mono_marshal_get_delegate_invoke (method, NULL);
4122 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4123 mono_error_assert_ok (error);
4124 return mono_get_addr_from_ftnptr (compiled_ptr);
4126 return mono_create_delegate_trampoline (target_domain, method->klass);
4127 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4128 nm = mono_marshal_get_delegate_begin_invoke (method);
4129 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4130 mono_error_assert_ok (error);
4131 return mono_get_addr_from_ftnptr (compiled_ptr);
4132 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4133 nm = mono_marshal_get_delegate_end_invoke (method);
4134 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4135 mono_error_assert_ok (error);
4136 return mono_get_addr_from_ftnptr (compiled_ptr);
4140 full_name = mono_method_full_name (method, TRUE);
4141 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4142 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4143 mono_error_set_exception_instance (error, ex);
4149 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4150 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4152 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4153 static MonoTrampInfo *in_tinfo, *out_tinfo;
4154 MonoTrampInfo *tinfo;
4156 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4158 if (is_in && in_tinfo)
4159 return in_tinfo->code;
4160 else if (!is_in && out_tinfo)
4161 return out_tinfo->code;
4164 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4166 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4169 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4171 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4172 jinfo = create_jit_info_for_trampoline (method, tinfo);
4173 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4182 if (mono_aot_only) {
4183 char *fullname = mono_method_full_name (method, TRUE);
4184 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);
4190 jit_timer = mono_time_track_start ();
4191 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4192 double jit_time = 0.0;
4193 mono_time_track_end (&jit_time, jit_timer);
4194 mono_jit_stats.jit_time += jit_time;
4196 prof_method = cfg->method;
4198 switch (cfg->exception_type) {
4199 case MONO_EXCEPTION_NONE:
4201 case MONO_EXCEPTION_TYPE_LOAD:
4202 case MONO_EXCEPTION_MISSING_FIELD:
4203 case MONO_EXCEPTION_MISSING_METHOD:
4204 case MONO_EXCEPTION_FILE_NOT_FOUND:
4205 case MONO_EXCEPTION_BAD_IMAGE:
4206 case MONO_EXCEPTION_INVALID_PROGRAM: {
4207 /* Throw a type load exception if needed */
4208 if (cfg->exception_ptr) {
4209 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4211 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4212 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4213 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4214 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4215 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4216 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4217 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4218 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4219 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4220 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4221 else if (cfg->exception_type == MONO_EXCEPTION_INVALID_PROGRAM)
4222 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4224 g_assert_not_reached ();
4228 case MONO_EXCEPTION_MONO_ERROR:
4229 // FIXME: MonoError has no copy ctor
4230 g_assert (!mono_error_ok (&cfg->error));
4231 ex = mono_error_convert_to_exception (&cfg->error);
4234 g_assert_not_reached ();
4238 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4239 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4241 mono_destroy_compile (cfg);
4242 mono_error_set_exception_instance (error, ex);
4247 if (mono_method_is_generic_sharable (method, FALSE))
4248 shared = mini_get_shared_method (method);
4252 mono_domain_lock (target_domain);
4254 /* Check if some other thread already did the job. In this case, we can
4255 discard the code this thread generated. */
4257 info = mini_lookup_method (target_domain, method, shared);
4259 /* We can't use a domain specific method in another domain */
4260 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4261 code = info->code_start;
4263 discarded_jit_time += jit_time;
4267 /* The lookup + insert is atomic since this is done inside the domain lock */
4268 mono_domain_jit_code_hash_lock (target_domain);
4269 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4270 mono_domain_jit_code_hash_unlock (target_domain);
4272 code = cfg->native_code;
4274 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4275 mono_stats.generics_shared_methods++;
4277 mono_stats.gsharedvt_methods++;
4280 jinfo = cfg->jit_info;
4282 prof_options = cfg->prof_options;
4285 * Update global stats while holding a lock, instead of doing many
4286 * InterlockedIncrement operations during JITting.
4288 mono_update_jit_stats (cfg);
4290 mono_destroy_compile (cfg);
4293 if (domain_jit_info (target_domain)->jump_target_hash) {
4294 MonoJumpInfo patch_info;
4295 MonoJumpList *jlist;
4297 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4299 patch_info.next = NULL;
4300 patch_info.ip.i = 0;
4301 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4302 patch_info.data.method = method;
4303 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4305 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4306 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4307 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4308 if (!mono_error_ok (error))
4310 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4313 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4314 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE, error);
4322 /* Update llvm callees */
4323 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4324 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4327 for (l = callees; l; l = l->next) {
4328 gpointer *addr = (gpointer*)l->data;
4334 mono_emit_jit_map (jinfo);
4336 mono_domain_unlock (target_domain);
4338 if (!mono_error_ok (error))
4341 vtable = mono_class_vtable (target_domain, method->klass);
4343 g_assert (mono_class_has_failure (method->klass));
4344 mono_error_set_for_class_failure (error, method->klass);
4348 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4349 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4350 if (mono_marshal_method_from_wrapper (method)) {
4351 /* Native func wrappers have no method */
4352 /* The profiler doesn't know about wrappers, so pass the original icall method */
4353 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4356 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4357 if (prof_method != method) {
4358 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4362 if (!mono_runtime_class_init_full (vtable, error))
4368 * mini_get_underlying_type:
4370 * Return the type the JIT will use during compilation.
4371 * Handles: byref, enums, native types, generic sharing.
4372 * For gsharedvt types, it will return the original VAR/MVAR.
4375 mini_get_underlying_type (MonoType *type)
4377 return mini_type_get_underlying_type (type);
4381 mini_jit_init (void)
4383 mono_counters_register ("Discarded method code", MONO_COUNTER_JIT | MONO_COUNTER_INT, &discarded_code);
4384 mono_counters_register ("Time spent JITting discarded code", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &discarded_jit_time);
4386 mono_os_mutex_init_recursive (&jit_mutex);
4388 current_backend = g_new0 (MonoBackend, 1);
4389 init_backend (current_backend);
4394 mini_jit_cleanup (void)
4397 g_free (emul_opcode_map);
4398 g_free (emul_opcode_opcodes);
4404 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4406 g_assert_not_reached ();
4409 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4411 g_assert_not_reached ();
4416 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4419 mono_llvm_cpp_throw_exception (void)
4421 g_assert_not_reached ();
4429 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4431 g_assert_not_reached ();
4436 mono_destroy_compile (MonoCompile *cfg)
4438 g_assert_not_reached ();
4442 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4444 g_assert_not_reached ();
4447 #endif /* DISABLE_JIT */