3 * The new Mono code generator.
6 * Paolo Molaro (lupus@ximian.com)
7 * Dietmar Maurer (dietmar@ximian.com)
9 * Copyright 2002-2003 Ximian, Inc.
10 * Copyright 2003-2010 Novell, Inc.
11 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
23 #ifdef HAVE_SYS_TIME_H
27 #include <mono/utils/memcheck.h>
29 #include <mono/metadata/assembly.h>
30 #include <mono/metadata/loader.h>
31 #include <mono/metadata/tabledefs.h>
32 #include <mono/metadata/class.h>
33 #include <mono/metadata/object.h>
34 #include <mono/metadata/tokentype.h>
35 #include <mono/metadata/tabledefs.h>
36 #include <mono/metadata/threads.h>
37 #include <mono/metadata/appdomain.h>
38 #include <mono/metadata/debug-helpers.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/utils/unlocked.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);
150 * mono_unlink_bblock:
152 * Unlink two basic blocks.
155 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
161 for (i = 0; i < from->out_count; ++i) {
162 if (to == from->out_bb [i]) {
169 for (i = 0; i < from->out_count; ++i) {
170 if (from->out_bb [i] != to)
171 from->out_bb [pos ++] = from->out_bb [i];
173 g_assert (pos == from->out_count - 1);
178 for (i = 0; i < to->in_count; ++i) {
179 if (from == to->in_bb [i]) {
186 for (i = 0; i < to->in_count; ++i) {
187 if (to->in_bb [i] != from)
188 to->in_bb [pos ++] = to->in_bb [i];
190 g_assert (pos == to->in_count - 1);
196 * mono_bblocks_linked:
198 * Return whenever BB1 and BB2 are linked in the CFG.
201 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
205 for (i = 0; i < bb1->out_count; ++i) {
206 if (bb1->out_bb [i] == bb2)
214 mono_find_block_region_notry (MonoCompile *cfg, int offset)
216 MonoMethodHeader *header = cfg->header;
217 MonoExceptionClause *clause;
220 for (i = 0; i < header->num_clauses; ++i) {
221 clause = &header->clauses [i];
222 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
223 (offset < (clause->handler_offset)))
224 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
226 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
227 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
228 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
229 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
230 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
232 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
240 * mono_get_block_region_notry:
242 * Return the region corresponding to REGION, ignoring try clauses nested inside
246 mono_get_block_region_notry (MonoCompile *cfg, int region)
248 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
249 MonoMethodHeader *header = cfg->header;
252 * This can happen if a try clause is nested inside a finally clause.
254 int clause_index = (region >> 8) - 1;
255 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
257 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
264 mono_find_spvar_for_region (MonoCompile *cfg, int region)
266 region = mono_get_block_region_notry (cfg, region);
268 return (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
272 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
276 array [*dfn] = start;
277 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
278 for (i = 0; i < start->out_count; ++i) {
279 if (start->out_bb [i]->dfn)
282 start->out_bb [i]->dfn = *dfn;
283 start->out_bb [i]->df_parent = start;
284 array [*dfn] = start->out_bb [i];
285 df_visit (start->out_bb [i], dfn, array);
290 mono_reverse_branch_op (guint32 opcode)
292 static const int reverse_map [] = {
293 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
294 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
296 static const int reverse_fmap [] = {
297 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
298 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
300 static const int reverse_lmap [] = {
301 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
302 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
304 static const int reverse_imap [] = {
305 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
306 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
309 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
310 opcode = reverse_map [opcode - CEE_BEQ];
311 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
312 opcode = reverse_fmap [opcode - OP_FBEQ];
313 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
314 opcode = reverse_lmap [opcode - OP_LBEQ];
315 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
316 opcode = reverse_imap [opcode - OP_IBEQ];
318 g_assert_not_reached ();
324 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
326 type = mini_get_underlying_type (type);
329 switch (type->type) {
332 return OP_STOREI1_MEMBASE_REG;
335 return OP_STOREI2_MEMBASE_REG;
338 return OP_STOREI4_MEMBASE_REG;
342 case MONO_TYPE_FNPTR:
343 return OP_STORE_MEMBASE_REG;
344 case MONO_TYPE_CLASS:
345 case MONO_TYPE_STRING:
346 case MONO_TYPE_OBJECT:
347 case MONO_TYPE_SZARRAY:
348 case MONO_TYPE_ARRAY:
349 return OP_STORE_MEMBASE_REG;
352 return OP_STOREI8_MEMBASE_REG;
354 return OP_STORER4_MEMBASE_REG;
356 return OP_STORER8_MEMBASE_REG;
357 case MONO_TYPE_VALUETYPE:
358 if (type->data.klass->enumtype) {
359 type = mono_class_enum_basetype (type->data.klass);
362 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
363 return OP_STOREX_MEMBASE;
364 return OP_STOREV_MEMBASE;
365 case MONO_TYPE_TYPEDBYREF:
366 return OP_STOREV_MEMBASE;
367 case MONO_TYPE_GENERICINST:
368 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
369 return OP_STOREX_MEMBASE;
370 type = &type->data.generic_class->container_class->byval_arg;
374 g_assert (mini_type_var_is_vt (type));
375 return OP_STOREV_MEMBASE;
377 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
383 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
385 type = mini_get_underlying_type (type);
387 switch (type->type) {
389 return OP_LOADI1_MEMBASE;
391 return OP_LOADU1_MEMBASE;
393 return OP_LOADI2_MEMBASE;
395 return OP_LOADU2_MEMBASE;
397 return OP_LOADI4_MEMBASE;
399 return OP_LOADU4_MEMBASE;
403 case MONO_TYPE_FNPTR:
404 return OP_LOAD_MEMBASE;
405 case MONO_TYPE_CLASS:
406 case MONO_TYPE_STRING:
407 case MONO_TYPE_OBJECT:
408 case MONO_TYPE_SZARRAY:
409 case MONO_TYPE_ARRAY:
410 return OP_LOAD_MEMBASE;
413 return OP_LOADI8_MEMBASE;
415 return OP_LOADR4_MEMBASE;
417 return OP_LOADR8_MEMBASE;
418 case MONO_TYPE_VALUETYPE:
419 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
420 return OP_LOADX_MEMBASE;
421 case MONO_TYPE_TYPEDBYREF:
422 return OP_LOADV_MEMBASE;
423 case MONO_TYPE_GENERICINST:
424 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
425 return OP_LOADX_MEMBASE;
426 if (mono_type_generic_inst_is_valuetype (type))
427 return OP_LOADV_MEMBASE;
429 return OP_LOAD_MEMBASE;
433 g_assert (cfg->gshared);
434 g_assert (mini_type_var_is_vt (type));
435 return OP_LOADV_MEMBASE;
437 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
443 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
445 type = mini_get_underlying_type (type);
446 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
447 g_assert (mini_type_var_is_vt (type));
450 return mono_type_to_stind (type);
454 mono_op_imm_to_op (int opcode)
458 #if SIZEOF_REGISTER == 4
476 #if SIZEOF_REGISTER == 4
482 #if SIZEOF_REGISTER == 4
488 #if SIZEOF_REGISTER == 4
534 #if SIZEOF_REGISTER == 4
540 #if SIZEOF_REGISTER == 4
559 case OP_ICOMPARE_IMM:
561 case OP_LOCALLOC_IMM:
569 * mono_decompose_op_imm:
571 * Replace the OP_.._IMM INS with its non IMM variant.
574 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
576 int opcode2 = mono_op_imm_to_op (ins->opcode);
579 const char *spec = INS_INFO (ins->opcode);
581 if (spec [MONO_INST_SRC2] == 'l') {
582 dreg = mono_alloc_lreg (cfg);
584 /* Load the 64bit constant using decomposed ops */
585 MONO_INST_NEW (cfg, temp, OP_ICONST);
586 temp->inst_c0 = ins->inst_ls_word;
587 temp->dreg = MONO_LVREG_LS (dreg);
588 mono_bblock_insert_before_ins (bb, ins, temp);
590 MONO_INST_NEW (cfg, temp, OP_ICONST);
591 temp->inst_c0 = ins->inst_ms_word;
592 temp->dreg = MONO_LVREG_MS (dreg);
594 dreg = mono_alloc_ireg (cfg);
596 MONO_INST_NEW (cfg, temp, OP_ICONST);
597 temp->inst_c0 = ins->inst_imm;
601 mono_bblock_insert_before_ins (bb, ins, temp);
604 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
605 ins->opcode = opcode2;
607 if (ins->opcode == OP_LOCALLOC)
612 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
616 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
618 if (vreg >= cfg->vreg_to_inst_len) {
619 MonoInst **tmp = cfg->vreg_to_inst;
620 int size = cfg->vreg_to_inst_len;
622 while (vreg >= cfg->vreg_to_inst_len)
623 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
624 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
626 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
628 cfg->vreg_to_inst [vreg] = inst;
631 #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)))
632 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
635 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
638 int num = cfg->num_varinfo;
641 type = mini_get_underlying_type (type);
643 if ((num + 1) >= cfg->varinfo_count) {
644 int orig_count = cfg->varinfo_count;
645 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
646 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
647 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
648 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
651 cfg->stat_allocate_var++;
653 MONO_INST_NEW (cfg, inst, opcode);
655 inst->inst_vtype = type;
656 inst->klass = mono_class_from_mono_type (type);
657 type_to_eval_stack_type (cfg, type, inst);
658 /* if set to 1 the variable is native */
659 inst->backend.is_pinvoke = 0;
662 if (mono_class_has_failure (inst->klass))
663 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
665 if (cfg->compute_gc_maps) {
667 mono_mark_vreg_as_mp (cfg, vreg);
669 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
670 inst->flags |= MONO_INST_GC_TRACK;
671 mono_mark_vreg_as_ref (cfg, vreg);
676 cfg->varinfo [num] = inst;
678 cfg->vars [num].idx = num;
679 cfg->vars [num].vreg = vreg;
680 cfg->vars [num].range.first_use.pos.bid = 0xffff;
681 cfg->vars [num].reg = -1;
684 set_vreg_to_inst (cfg, vreg, inst);
686 #if SIZEOF_REGISTER == 4
687 if (mono_arch_is_soft_float ()) {
688 regpair = mono_type_is_long (type) || mono_type_is_float (type);
690 regpair = mono_type_is_long (type);
700 * These two cannot be allocated using create_var_for_vreg since that would
701 * put it into the cfg->varinfo array, confusing many parts of the JIT.
705 * Set flags to VOLATILE so SSA skips it.
708 if (cfg->verbose_level >= 4) {
709 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
712 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
713 if (mono_type_is_float (type))
714 inst->flags = MONO_INST_VOLATILE;
717 /* Allocate a dummy MonoInst for the first vreg */
718 MONO_INST_NEW (cfg, tree, OP_LOCAL);
719 tree->dreg = MONO_LVREG_LS (inst->dreg);
720 if (cfg->opt & MONO_OPT_SSA)
721 tree->flags = MONO_INST_VOLATILE;
723 tree->type = STACK_I4;
724 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
725 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
727 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
729 /* Allocate a dummy MonoInst for the second vreg */
730 MONO_INST_NEW (cfg, tree, OP_LOCAL);
731 tree->dreg = MONO_LVREG_MS (inst->dreg);
732 if (cfg->opt & MONO_OPT_SSA)
733 tree->flags = MONO_INST_VOLATILE;
735 tree->type = STACK_I4;
736 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
737 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
739 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
743 if (cfg->verbose_level > 2)
744 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
749 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
752 type = mini_get_underlying_type (type);
754 if (mono_type_is_long (type))
755 dreg = mono_alloc_dreg (cfg, STACK_I8);
756 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
757 dreg = mono_alloc_dreg (cfg, STACK_R8);
759 /* All the others are unified */
760 dreg = mono_alloc_preg (cfg);
762 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
766 mini_get_int_to_float_spill_area (MonoCompile *cfg)
769 if (!cfg->iconv_raw_var) {
770 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
771 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
773 return cfg->iconv_raw_var;
780 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
782 if (vreg >= cfg->vreg_is_ref_len) {
783 gboolean *tmp = cfg->vreg_is_ref;
784 int size = cfg->vreg_is_ref_len;
786 while (vreg >= cfg->vreg_is_ref_len)
787 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
788 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
790 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
792 cfg->vreg_is_ref [vreg] = TRUE;
796 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
798 if (vreg >= cfg->vreg_is_mp_len) {
799 gboolean *tmp = cfg->vreg_is_mp;
800 int size = cfg->vreg_is_mp_len;
802 while (vreg >= cfg->vreg_is_mp_len)
803 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
804 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
806 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
808 cfg->vreg_is_mp [vreg] = TRUE;
812 type_from_stack_type (MonoInst *ins)
815 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
816 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
817 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
818 case STACK_R8: return &mono_defaults.double_class->byval_arg;
821 * this if used to be commented without any specific reason, but
822 * it breaks #80235 when commented
825 return &ins->klass->this_arg;
827 return &mono_defaults.object_class->this_arg;
829 /* ins->klass may not be set for ldnull.
830 * Also, if we have a boxed valuetype, we want an object lass,
831 * not the valuetype class
833 if (ins->klass && !ins->klass->valuetype)
834 return &ins->klass->byval_arg;
835 return &mono_defaults.object_class->byval_arg;
836 case STACK_VTYPE: return &ins->klass->byval_arg;
838 g_error ("stack type %d to montype not handled\n", ins->type);
844 mono_type_from_stack_type (MonoInst *ins)
846 return type_from_stack_type (ins);
850 * mono_add_ins_to_end:
852 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
855 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
860 MONO_ADD_INS (bb, inst);
864 switch (bb->last_ins->opcode) {
878 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
881 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
882 /* Need to insert the ins before the compare */
883 if (bb->code == bb->last_ins) {
884 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
888 if (bb->code->next == bb->last_ins) {
889 /* Only two instructions */
890 opcode = bb->code->opcode;
892 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)) {
894 mono_bblock_insert_before_ins (bb, bb->code, inst);
896 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
899 opcode = bb->last_ins->prev->opcode;
901 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)) {
903 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
905 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
910 MONO_ADD_INS (bb, inst);
916 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
918 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
919 MonoJumpInfoBBTable *table;
921 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
923 table->table_size = num_blocks;
925 ji->ip.label = label;
926 ji->type = MONO_PATCH_INFO_SWITCH;
927 ji->data.table = table;
928 ji->next = cfg->patch_info;
929 cfg->patch_info = ji;
932 static MonoMethodSignature *
933 mono_get_array_new_va_signature (int arity)
935 static GHashTable *sighash;
936 MonoMethodSignature *res;
941 sighash = g_hash_table_new (NULL, NULL);
943 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
948 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
951 if (ARCH_VARARG_ICALLS)
952 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
953 res->call_convention = MONO_CALL_VARARG;
956 res->call_convention = MONO_CALL_C;
959 res->params [0] = &mono_defaults.int_class->byval_arg;
960 for (i = 0; i < arity; i++)
961 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
963 res->ret = &mono_defaults.object_class->byval_arg;
965 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
972 mono_get_array_new_va_icall (int rank)
974 MonoMethodSignature *esig;
975 char icall_name [256];
977 MonoJitICallInfo *info;
979 /* Need to register the icall so it gets an icall wrapper */
980 sprintf (icall_name, "ves_array_new_va_%d", rank);
983 info = mono_find_jit_icall_by_name (icall_name);
985 esig = mono_get_array_new_va_signature (rank);
986 name = g_strdup (icall_name);
987 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
995 mini_class_is_system_array (MonoClass *klass)
997 if (klass->parent == mono_defaults.array_class)
1004 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1006 MonoAssembly *assembly = method->klass->image->assembly;
1007 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1009 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1011 return mono_assembly_has_skip_verification (assembly);
1015 * mini_method_verify:
1017 * Verify the method using the verfier.
1019 * Returns true if the method is invalid.
1022 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1025 gboolean is_fulltrust;
1027 if (method->verification_success)
1030 if (!mono_verifier_is_enabled_for_method (method))
1033 /*skip verification implies the assembly must be */
1034 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1036 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1039 for (tmp = res; tmp; tmp = tmp->next) {
1040 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1041 if (info->info.status == MONO_VERIFY_ERROR) {
1043 char *method_name = mono_method_full_name (method, TRUE);
1044 cfg->exception_type = info->exception_type;
1045 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1046 g_free (method_name);
1048 mono_free_verify_list (res);
1051 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1053 char *method_name = mono_method_full_name (method, TRUE);
1054 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1056 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1057 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1058 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1059 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1060 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1061 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", "%s", msg);
1062 if (!mono_error_ok (&cfg->error)) {
1063 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1066 cfg->exception_type = info->exception_type;
1067 cfg->exception_message = msg;
1069 g_free (method_name);
1071 mono_free_verify_list (res);
1075 mono_free_verify_list (res);
1077 method->verification_success = 1;
1081 /*Returns true if something went wrong*/
1083 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1085 MonoMethod *method_definition = method;
1086 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1088 while (method_definition->is_inflated) {
1089 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1090 method_definition = imethod->declaring;
1093 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1097 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1099 if (!domain_jit_info (domain)->dynamic_code_hash)
1100 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1101 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1104 static MonoJitDynamicMethodInfo*
1105 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1107 MonoJitDynamicMethodInfo *res;
1109 if (domain_jit_info (domain)->dynamic_code_hash)
1110 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1118 GList *active, *inactive;
1123 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1125 MonoMethodVar *v1 = (MonoMethodVar*)a;
1126 MonoMethodVar *v2 = (MonoMethodVar*)b;
1130 else if (v1->interval->range && v2->interval->range)
1131 return v1->interval->range->from - v2->interval->range->from;
1132 else if (v1->interval->range)
1139 #define LSCAN_DEBUG(a) do { a; } while (0)
1141 #define LSCAN_DEBUG(a)
1145 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1147 int i, slot, offset, size;
1152 GList *vars = NULL, *l, *unhandled;
1153 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1156 gboolean reuse_slot;
1158 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1160 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1161 vtype_stack_slots = NULL;
1164 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1165 for (i = 0; i < cfg->num_varinfo; ++i)
1168 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1169 inst = cfg->varinfo [i];
1170 vmv = MONO_VARINFO (cfg, i);
1172 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1175 vars = g_list_prepend (vars, vmv);
1178 vars = g_list_sort (vars, compare_by_interval_start_pos_func);
1183 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1184 MonoMethodVar *current = unhandled->data;
1186 if (current->interval->range) {
1187 g_assert (current->interval->range->from >= i);
1188 i = current->interval->range->from;
1195 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1196 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1199 inst = cfg->varinfo [vmv->idx];
1201 t = mono_type_get_underlying_type (inst->inst_vtype);
1202 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1205 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1206 * pinvoke wrappers when they call functions returning structures */
1207 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1208 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1213 size = mini_type_stack_size (t, &ialign);
1216 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1221 if (cfg->disable_reuse_stack_slots)
1224 t = mini_get_underlying_type (t);
1226 case MONO_TYPE_GENERICINST:
1227 if (!mono_type_generic_inst_is_valuetype (t)) {
1228 slot_info = &scalar_stack_slots [t->type];
1232 case MONO_TYPE_VALUETYPE:
1233 if (!vtype_stack_slots)
1234 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1235 for (i = 0; i < nvtypes; ++i)
1236 if (t->data.klass == vtype_stack_slots [i].vtype)
1239 slot_info = &vtype_stack_slots [i];
1241 g_assert (nvtypes < 256);
1242 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1243 slot_info = &vtype_stack_slots [nvtypes];
1246 if (cfg->disable_reuse_ref_stack_slots)
1253 #if SIZEOF_VOID_P == 4
1258 if (cfg->disable_ref_noref_stack_slot_share) {
1259 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1264 case MONO_TYPE_CLASS:
1265 case MONO_TYPE_OBJECT:
1266 case MONO_TYPE_ARRAY:
1267 case MONO_TYPE_SZARRAY:
1268 case MONO_TYPE_STRING:
1269 /* Share non-float stack slots of the same size */
1270 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1271 if (cfg->disable_reuse_ref_stack_slots)
1276 slot_info = &scalar_stack_slots [t->type];
1280 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1284 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1286 if (!current->interval->range) {
1287 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1291 inst->flags |= MONO_INST_IS_DEAD;
1296 pos = current->interval->range->from;
1298 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1299 if (current->interval->range)
1300 LSCAN_DEBUG (mono_linterval_print (current->interval));
1301 LSCAN_DEBUG (printf ("\n"));
1303 /* Check for intervals in active which expired or inactive */
1305 /* FIXME: Optimize this */
1308 for (l = slot_info->active; l != NULL; l = l->next) {
1309 MonoMethodVar *v = (MonoMethodVar*)l->data;
1311 if (v->interval->last_range->to < pos) {
1312 slot_info->active = g_list_delete_link (slot_info->active, l);
1313 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1314 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1318 else if (!mono_linterval_covers (v->interval, pos)) {
1319 slot_info->inactive = g_list_append (slot_info->inactive, v);
1320 slot_info->active = g_list_delete_link (slot_info->active, l);
1321 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1328 /* Check for intervals in inactive which expired or active */
1330 /* FIXME: Optimize this */
1333 for (l = slot_info->inactive; l != NULL; l = l->next) {
1334 MonoMethodVar *v = (MonoMethodVar*)l->data;
1336 if (v->interval->last_range->to < pos) {
1337 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1338 // FIXME: Enabling this seems to cause impossible to debug crashes
1339 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1340 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1344 else if (mono_linterval_covers (v->interval, pos)) {
1345 slot_info->active = g_list_append (slot_info->active, v);
1346 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1347 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1355 * This also handles the case when the variable is used in an
1356 * exception region, as liveness info is not computed there.
1359 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1362 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1363 if (slot_info->slots) {
1364 slot = GPOINTER_TO_INT (slot_info->slots->data);
1366 slot_info->slots = slot_info->slots->next;
1369 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1371 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1377 static int count = 0;
1380 if (count == atoi (g_getenv ("COUNT3")))
1381 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1382 if (count > atoi (g_getenv ("COUNT3")))
1385 mono_print_ins (inst);
1389 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1391 if (inst->flags & MONO_INST_LMF) {
1392 size = sizeof (MonoLMF);
1393 align = sizeof (mgreg_t);
1400 if (slot == 0xffffff) {
1402 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1403 * efficient copying (and to work around the fact that OP_MEMCPY
1404 * and OP_MEMSET ignores alignment).
1406 if (MONO_TYPE_ISSTRUCT (t)) {
1407 align = MAX (align, sizeof (gpointer));
1408 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1413 offset += align - 1;
1414 offset &= ~(align - 1);
1418 offset += align - 1;
1419 offset &= ~(align - 1);
1424 if (*stack_align == 0)
1425 *stack_align = align;
1428 offsets [vmv->idx] = slot;
1431 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1432 if (scalar_stack_slots [i].active)
1433 g_list_free (scalar_stack_slots [i].active);
1435 for (i = 0; i < nvtypes; ++i) {
1436 if (vtype_stack_slots [i].active)
1437 g_list_free (vtype_stack_slots [i].active);
1440 cfg->stat_locals_stack_size += offset;
1442 *stack_size = offset;
1447 * mono_allocate_stack_slots:
1449 * Allocate stack slots for all non register allocated variables using a
1450 * linear scan algorithm.
1451 * Returns: an array of stack offsets.
1452 * STACK_SIZE is set to the amount of stack space needed.
1453 * STACK_ALIGN is set to the alignment needed by the locals area.
1456 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1458 int i, slot, offset, size;
1463 GList *vars = NULL, *l;
1464 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1467 gboolean reuse_slot;
1469 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1470 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1472 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1473 vtype_stack_slots = NULL;
1476 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1477 for (i = 0; i < cfg->num_varinfo; ++i)
1480 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1481 inst = cfg->varinfo [i];
1482 vmv = MONO_VARINFO (cfg, i);
1484 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1487 vars = g_list_prepend (vars, vmv);
1490 vars = mono_varlist_sort (cfg, vars, 0);
1492 *stack_align = sizeof(mgreg_t);
1493 for (l = vars; l; l = l->next) {
1494 vmv = (MonoMethodVar *)l->data;
1495 inst = cfg->varinfo [vmv->idx];
1497 t = mono_type_get_underlying_type (inst->inst_vtype);
1498 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1501 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1502 * pinvoke wrappers when they call functions returning structures */
1503 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1504 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1508 size = mini_type_stack_size (t, &ialign);
1511 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1512 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1514 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1519 if (cfg->disable_reuse_stack_slots)
1522 t = mini_get_underlying_type (t);
1524 case MONO_TYPE_GENERICINST:
1525 if (!mono_type_generic_inst_is_valuetype (t)) {
1526 slot_info = &scalar_stack_slots [t->type];
1530 case MONO_TYPE_VALUETYPE:
1531 if (!vtype_stack_slots)
1532 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1533 for (i = 0; i < nvtypes; ++i)
1534 if (t->data.klass == vtype_stack_slots [i].vtype)
1537 slot_info = &vtype_stack_slots [i];
1539 g_assert (nvtypes < 256);
1540 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1541 slot_info = &vtype_stack_slots [nvtypes];
1544 if (cfg->disable_reuse_ref_stack_slots)
1551 #if SIZEOF_VOID_P == 4
1556 if (cfg->disable_ref_noref_stack_slot_share) {
1557 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1562 case MONO_TYPE_CLASS:
1563 case MONO_TYPE_OBJECT:
1564 case MONO_TYPE_ARRAY:
1565 case MONO_TYPE_SZARRAY:
1566 case MONO_TYPE_STRING:
1567 /* Share non-float stack slots of the same size */
1568 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1569 if (cfg->disable_reuse_ref_stack_slots)
1573 case MONO_TYPE_MVAR:
1574 slot_info = &scalar_stack_slots [t->type];
1577 slot_info = &scalar_stack_slots [t->type];
1582 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1583 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1585 /* expire old intervals in active */
1586 while (slot_info->active) {
1587 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1589 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1592 //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);
1594 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1595 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1599 * This also handles the case when the variable is used in an
1600 * exception region, as liveness info is not computed there.
1603 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1606 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1607 if (slot_info->slots) {
1608 slot = GPOINTER_TO_INT (slot_info->slots->data);
1610 slot_info->slots = slot_info->slots->next;
1613 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1619 static int count = 0;
1622 if (count == atoi (g_getenv ("COUNT")))
1623 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1624 if (count > atoi (g_getenv ("COUNT")))
1627 mono_print_ins (inst);
1631 if (inst->flags & MONO_INST_LMF) {
1633 * This variable represents a MonoLMF structure, which has no corresponding
1634 * CLR type, so hard-code its size/alignment.
1636 size = sizeof (MonoLMF);
1637 align = sizeof (mgreg_t);
1644 if (slot == 0xffffff) {
1646 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1647 * efficient copying (and to work around the fact that OP_MEMCPY
1648 * and OP_MEMSET ignores alignment).
1650 if (MONO_TYPE_ISSTRUCT (t)) {
1651 align = MAX (align, sizeof (gpointer));
1652 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1654 * Align the size too so the code generated for passing vtypes in
1655 * registers doesn't overwrite random locals.
1657 size = (size + (align - 1)) & ~(align -1);
1662 offset += align - 1;
1663 offset &= ~(align - 1);
1667 offset += align - 1;
1668 offset &= ~(align - 1);
1673 *stack_align = MAX (*stack_align, align);
1676 offsets [vmv->idx] = slot;
1679 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1680 if (scalar_stack_slots [i].active)
1681 g_list_free (scalar_stack_slots [i].active);
1683 for (i = 0; i < nvtypes; ++i) {
1684 if (vtype_stack_slots [i].active)
1685 g_list_free (vtype_stack_slots [i].active);
1688 cfg->stat_locals_stack_size += offset;
1690 *stack_size = offset;
1694 #define EMUL_HIT_SHIFT 3
1695 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1696 /* small hit bitmap cache */
1697 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1698 static short emul_opcode_num = 0;
1699 static short emul_opcode_alloced = 0;
1700 static short *emul_opcode_opcodes;
1701 static MonoJitICallInfo **emul_opcode_map;
1704 mono_find_jit_opcode_emulation (int opcode)
1706 g_assert (opcode >= 0 && opcode <= OP_LAST);
1707 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1709 for (i = 0; i < emul_opcode_num; ++i) {
1710 if (emul_opcode_opcodes [i] == opcode)
1711 return emul_opcode_map [i];
1718 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1720 MonoJitICallInfo *info;
1721 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1723 g_assert (!sig->hasthis);
1724 g_assert (sig->param_count < 3);
1726 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1727 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1729 if (emul_opcode_num >= emul_opcode_alloced) {
1730 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1731 emul_opcode_alloced += incr;
1732 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1733 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1735 emul_opcode_map [emul_opcode_num] = info;
1736 emul_opcode_opcodes [emul_opcode_num] = opcode;
1738 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1742 print_dfn (MonoCompile *cfg)
1750 char *method_name = mono_method_full_name (cfg->method, TRUE);
1751 g_print ("IR code for method %s\n", method_name);
1752 g_free (method_name);
1755 for (i = 0; i < cfg->num_bblocks; ++i) {
1756 bb = cfg->bblocks [i];
1757 /*if (bb->cil_code) {
1758 char* code1, *code2;
1759 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1760 if (bb->last_ins->cil_code)
1761 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1763 code2 = g_strdup ("");
1765 code1 [strlen (code1) - 1] = 0;
1766 code = g_strdup_printf ("%s -> %s", code1, code2);
1770 code = g_strdup ("\n");
1771 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1772 MONO_BB_FOR_EACH_INS (bb, c) {
1773 mono_print_ins_index (-1, c);
1776 g_print ("\tprev:");
1777 for (j = 0; j < bb->in_count; ++j) {
1778 g_print (" BB%d", bb->in_bb [j]->block_num);
1780 g_print ("\t\tsucc:");
1781 for (j = 0; j < bb->out_count; ++j) {
1782 g_print (" BB%d", bb->out_bb [j]->block_num);
1784 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1787 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1790 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1792 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1800 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1802 MONO_ADD_INS (bb, inst);
1806 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1810 bb->code = ins_to_insert;
1812 /* Link with next */
1813 ins_to_insert->next = ins;
1815 ins->prev = ins_to_insert;
1817 if (bb->last_ins == NULL)
1818 bb->last_ins = ins_to_insert;
1820 /* Link with next */
1821 ins_to_insert->next = ins->next;
1823 ins->next->prev = ins_to_insert;
1825 /* Link with previous */
1826 ins->next = ins_to_insert;
1827 ins_to_insert->prev = ins;
1829 if (bb->last_ins == ins)
1830 bb->last_ins = ins_to_insert;
1835 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1840 ins->prev = ins_to_insert;
1841 bb->code = ins_to_insert;
1842 ins_to_insert->next = ins;
1843 if (bb->last_ins == NULL)
1844 bb->last_ins = ins_to_insert;
1846 /* Link with previous */
1848 ins->prev->next = ins_to_insert;
1849 ins_to_insert->prev = ins->prev;
1851 /* Link with next */
1852 ins->prev = ins_to_insert;
1853 ins_to_insert->next = ins;
1855 if (bb->code == ins)
1856 bb->code = ins_to_insert;
1861 * mono_verify_bblock:
1863 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1866 mono_verify_bblock (MonoBasicBlock *bb)
1868 MonoInst *ins, *prev;
1871 for (ins = bb->code; ins; ins = ins->next) {
1872 g_assert (ins->prev == prev);
1876 g_assert (!bb->last_ins->next);
1882 * Perform consistency checks on the JIT data structures and the IR
1885 mono_verify_cfg (MonoCompile *cfg)
1889 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
1890 mono_verify_bblock (bb);
1893 // This will free many fields in cfg to save
1894 // memory. Note that this must be safe to call
1895 // multiple times. It must be idempotent.
1897 mono_empty_compile (MonoCompile *cfg)
1899 mono_free_loop_info (cfg);
1901 // These live in the mempool, and so must be freed
1903 for (GSList *l = cfg->headers_to_free; l; l = l->next) {
1904 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
1906 cfg->headers_to_free = NULL;
1909 //mono_mempool_stats (cfg->mempool);
1910 mono_mempool_destroy (cfg->mempool);
1911 cfg->mempool = NULL;
1914 g_free (cfg->varinfo);
1915 cfg->varinfo = NULL;
1921 mono_regstate_free (cfg->rs);
1927 mono_destroy_compile (MonoCompile *cfg)
1929 mono_empty_compile (cfg);
1932 mono_metadata_free_mh (cfg->header);
1935 g_hash_table_destroy (cfg->spvars);
1937 g_hash_table_destroy (cfg->exvars);
1939 g_list_free (cfg->ldstr_list);
1941 if (cfg->token_info_hash)
1942 g_hash_table_destroy (cfg->token_info_hash);
1944 if (cfg->abs_patches)
1945 g_hash_table_destroy (cfg->abs_patches);
1947 mono_debug_free_method (cfg);
1949 g_free (cfg->varinfo);
1951 g_free (cfg->exception_message);
1956 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
1958 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
1962 ji->data.target = target;
1963 ji->next = cfg->patch_info;
1965 cfg->patch_info = ji;
1969 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
1971 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
1975 ji->relocation = relocation;
1976 ji->data.target = target;
1977 ji->next = cfg->patch_info;
1979 cfg->patch_info = ji;
1983 mono_remove_patch_info (MonoCompile *cfg, int ip)
1985 MonoJumpInfo **ji = &cfg->patch_info;
1988 if ((*ji)->ip.i == ip)
1991 ji = &((*ji)->next);
1996 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
1998 ins->inst_offset = native_offset;
1999 g_ptr_array_add (cfg->seq_points, ins);
2001 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2002 bb->last_seq_point = ins;
2007 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2009 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2012 g_assert (offset == 0);
2014 entry->is_reg = is_reg;
2016 entry->offset = offset;
2020 if (var == cfg->args [0])
2021 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2022 else if (var == cfg->rgctx_var)
2023 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2027 mono_compile_create_vars (MonoCompile *cfg)
2029 MonoMethodSignature *sig;
2030 MonoMethodHeader *header;
2033 header = cfg->header;
2035 sig = mono_method_signature (cfg->method);
2037 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2038 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2039 /* Inhibit optimizations */
2040 cfg->ret->flags |= MONO_INST_VOLATILE;
2042 if (cfg->verbose_level > 2)
2043 g_print ("creating vars\n");
2045 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2048 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2049 cfg->this_arg = cfg->args [0];
2052 for (i = 0; i < sig->param_count; ++i) {
2053 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2056 if (cfg->verbose_level > 2) {
2058 printf ("\treturn : ");
2059 mono_print_ins (cfg->ret);
2063 printf ("\tthis: ");
2064 mono_print_ins (cfg->args [0]);
2067 for (i = 0; i < sig->param_count; ++i) {
2068 printf ("\targ [%d]: ", i);
2069 mono_print_ins (cfg->args [i + sig->hasthis]);
2073 cfg->locals_start = cfg->num_varinfo;
2074 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2076 if (cfg->verbose_level > 2)
2077 g_print ("creating locals\n");
2079 for (i = 0; i < header->num_locals; ++i) {
2080 if (cfg->verbose_level > 2)
2081 g_print ("\tlocal [%d]: ", i);
2082 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2085 if (cfg->verbose_level > 2)
2086 g_print ("locals done\n");
2089 if (COMPILE_LLVM (cfg))
2090 mono_llvm_create_vars (cfg);
2092 mono_arch_create_vars (cfg);
2094 mono_arch_create_vars (cfg);
2097 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2098 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2099 lmf_var->flags |= MONO_INST_VOLATILE;
2100 lmf_var->flags |= MONO_INST_LMF;
2101 cfg->lmf_var = lmf_var;
2106 mono_print_code (MonoCompile *cfg, const char* msg)
2110 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2111 mono_print_bb (bb, msg);
2115 mono_postprocess_patches (MonoCompile *cfg)
2117 MonoJumpInfo *patch_info;
2120 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2121 switch (patch_info->type) {
2122 case MONO_PATCH_INFO_ABS: {
2123 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2126 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2130 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2131 /* for these array methods we currently register the same function pointer
2132 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2133 * will return the incorrect one depending on the order they are registered.
2134 * See tests/test-arr.cs
2136 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2137 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2138 patch_info->data.name = info->name;
2142 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2143 if (cfg->abs_patches) {
2144 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2146 patch_info->type = abs_ji->type;
2147 patch_info->data.target = abs_ji->data.target;
2154 case MONO_PATCH_INFO_SWITCH: {
2156 if (cfg->method->dynamic) {
2157 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2159 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2162 for (i = 0; i < patch_info->data.table->table_size; i++) {
2163 /* Might be NULL if the switch is eliminated */
2164 if (patch_info->data.table->table [i]) {
2165 g_assert (patch_info->data.table->table [i]->native_offset);
2166 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2171 patch_info->data.table->table = (MonoBasicBlock**)table;
2174 case MONO_PATCH_INFO_METHOD_JUMP: {
2175 MonoJumpList *jlist;
2176 MonoDomain *domain = cfg->domain;
2177 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2179 mono_domain_lock (domain);
2180 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2182 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2183 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2185 jlist->list = g_slist_prepend (jlist->list, ip);
2186 mono_domain_unlock (domain);
2197 mono_codegen (MonoCompile *cfg)
2200 int max_epilog_size;
2202 MonoDomain *code_domain;
2203 guint unwindlen = 0;
2205 if (mono_using_xdebug)
2207 * Recent gdb versions have trouble processing symbol files containing
2208 * overlapping address ranges, so allocate all code from the code manager
2209 * of the root domain. (#666152).
2211 code_domain = mono_get_root_domain ();
2213 code_domain = cfg->domain;
2215 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2216 cfg->spill_count = 0;
2217 /* we reuse dfn here */
2218 /* bb->dfn = bb_count++; */
2220 mono_arch_lowering_pass (cfg, bb);
2222 if (cfg->opt & MONO_OPT_PEEPHOLE)
2223 mono_arch_peephole_pass_1 (cfg, bb);
2225 mono_local_regalloc (cfg, bb);
2227 if (cfg->opt & MONO_OPT_PEEPHOLE)
2228 mono_arch_peephole_pass_2 (cfg, bb);
2230 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2231 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2234 code = mono_arch_emit_prolog (cfg);
2236 cfg->code_len = code - cfg->native_code;
2237 cfg->prolog_end = cfg->code_len;
2238 cfg->cfa_reg = cfg->cur_cfa_reg;
2239 cfg->cfa_offset = cfg->cur_cfa_offset;
2241 mono_debug_open_method (cfg);
2243 /* emit code all basic blocks */
2244 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2245 bb->native_offset = cfg->code_len;
2246 bb->real_native_offset = cfg->code_len;
2247 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2248 mono_arch_output_basic_block (cfg, bb);
2249 bb->native_length = cfg->code_len - bb->native_offset;
2251 if (bb == cfg->bb_exit) {
2252 cfg->epilog_begin = cfg->code_len;
2253 mono_arch_emit_epilog (cfg);
2254 cfg->epilog_end = cfg->code_len;
2257 if (bb->clause_hole)
2258 mono_cfg_add_try_hole (cfg, bb->clause_hole, cfg->native_code + bb->native_offset, bb);
2261 mono_arch_emit_exceptions (cfg);
2263 max_epilog_size = 0;
2265 /* we always allocate code in cfg->domain->code_mp to increase locality */
2266 cfg->code_size = cfg->code_len + max_epilog_size;
2268 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2270 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2271 unwindlen = mono_arch_unwindinfo_init_method_unwind_info (cfg);
2274 if (cfg->method->dynamic) {
2275 /* Allocate the code into a separate memory pool so it can be freed */
2276 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2277 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2278 mono_domain_lock (cfg->domain);
2279 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2280 mono_domain_unlock (cfg->domain);
2282 if (mono_using_xdebug)
2283 /* See the comment for cfg->code_domain */
2284 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2286 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2288 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2291 if (cfg->thunk_area) {
2292 cfg->thunks_offset = cfg->code_size + unwindlen;
2293 cfg->thunks = code + cfg->thunks_offset;
2294 memset (cfg->thunks, 0, cfg->thunk_area);
2298 memcpy (code, cfg->native_code, cfg->code_len);
2299 g_free (cfg->native_code);
2300 cfg->native_code = code;
2301 code = cfg->native_code + cfg->code_len;
2303 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2304 mono_postprocess_patches (cfg);
2306 #ifdef VALGRIND_JIT_REGISTER_MAP
2307 if (valgrind_register){
2308 char* nm = mono_method_full_name (cfg->method, TRUE);
2309 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2314 if (cfg->verbose_level > 0) {
2315 char* nm = mono_method_get_full_name (cfg->method);
2316 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2318 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2323 gboolean is_generic = FALSE;
2325 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2326 mono_class_is_gtd (cfg->method->klass) || mono_class_is_ginst (cfg->method->klass)) {
2331 g_assert (is_generic);
2334 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2335 mono_arch_save_unwind_info (cfg);
2338 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2343 for (ji = cfg->patch_info; ji; ji = ji->next) {
2344 if (cfg->compile_aot) {
2346 case MONO_PATCH_INFO_BB:
2347 case MONO_PATCH_INFO_LABEL:
2350 /* No need to patch these */
2355 if (ji->type == MONO_PATCH_INFO_NONE)
2358 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2359 if (!mono_error_ok (&cfg->error)) {
2360 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2363 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2367 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors, &cfg->error);
2368 if (!is_ok (&cfg->error)) {
2369 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2374 if (cfg->method->dynamic) {
2375 if (mono_using_xdebug)
2376 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2378 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2380 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2382 MONO_PROFILER_RAISE (jit_code_buffer, (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method));
2384 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2386 mono_debug_close_method (cfg);
2388 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2389 mono_arch_unwindinfo_install_method_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2394 compute_reachable (MonoBasicBlock *bb)
2398 if (!(bb->flags & BB_VISITED)) {
2399 bb->flags |= BB_VISITED;
2400 for (i = 0; i < bb->out_count; ++i)
2401 compute_reachable (bb->out_bb [i]);
2405 static void mono_bb_ordering (MonoCompile *cfg)
2408 /* Depth-first ordering on basic blocks */
2409 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2411 cfg->max_block_num = cfg->num_bblocks;
2413 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2414 if (cfg->num_bblocks != dfn + 1) {
2417 cfg->num_bblocks = dfn + 1;
2419 /* remove unreachable code, because the code in them may be
2420 * inconsistent (access to dead variables for example) */
2421 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2422 bb->flags &= ~BB_VISITED;
2423 compute_reachable (cfg->bb_entry);
2424 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2425 if (bb->flags & BB_EXCEPTION_HANDLER)
2426 compute_reachable (bb);
2427 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2428 if (!(bb->flags & BB_VISITED)) {
2429 if (cfg->verbose_level > 1)
2430 g_print ("found unreachable code in BB%d\n", bb->block_num);
2431 bb->code = bb->last_ins = NULL;
2432 while (bb->out_count)
2433 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2436 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2437 bb->flags &= ~BB_VISITED;
2442 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2445 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2446 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2448 MONO_INST_NEW (cfg, ins, OP_BR);
2449 MONO_ADD_INS (bb, ins);
2450 ins->inst_target_bb = bb->next_bb;
2456 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2459 MonoMethodHeader *header;
2461 MonoJitInfoFlags flags = JIT_INFO_NONE;
2462 int num_clauses, num_holes = 0;
2463 guint32 stack_size = 0;
2465 g_assert (method_to_compile == cfg->method);
2466 header = cfg->header;
2469 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2471 if (cfg->arch_eh_jit_info) {
2472 MonoJitArgumentInfo *arg_info;
2473 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2476 * This cannot be computed during stack walking, as
2477 * mono_arch_get_argument_info () is not signal safe.
2479 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2480 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2483 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2486 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2487 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2489 if (cfg->thunk_area)
2490 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2492 if (cfg->try_block_holes) {
2493 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2494 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2495 MonoExceptionClause *ec = hole->clause;
2496 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2497 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2498 g_assert (clause_last_bb);
2500 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2501 if (clause_last_bb->native_offset != hole_end)
2505 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2506 if (G_UNLIKELY (cfg->verbose_level >= 4))
2507 printf ("Number of try block holes %d\n", num_holes);
2510 if (COMPILE_LLVM (cfg))
2511 num_clauses = cfg->llvm_ex_info_len;
2513 num_clauses = header->num_clauses;
2515 if (cfg->method->dynamic)
2516 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2518 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2519 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2520 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2522 if (COMPILE_LLVM (cfg))
2523 jinfo->from_llvm = TRUE;
2527 MonoGenericJitInfo *gi;
2528 GSList *loclist = NULL;
2530 gi = mono_jit_info_get_generic_jit_info (jinfo);
2533 if (cfg->method->dynamic)
2534 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2536 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2537 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2539 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2540 mini_method_get_context (method_to_compile)->method_inst ||
2541 method_to_compile->klass->valuetype) {
2542 g_assert (cfg->rgctx_var);
2547 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2548 mini_method_get_context (method_to_compile)->method_inst ||
2549 method_to_compile->klass->valuetype) {
2550 inst = cfg->rgctx_var;
2551 if (!COMPILE_LLVM (cfg))
2552 g_assert (inst->opcode == OP_REGOFFSET);
2553 loclist = cfg->rgctx_loclist;
2555 inst = cfg->args [0];
2556 loclist = cfg->this_loclist;
2560 /* Needed to handle async exceptions */
2564 gi->nlocs = g_slist_length (loclist);
2565 if (cfg->method->dynamic)
2566 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2568 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2570 for (l = loclist; l; l = l->next) {
2571 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2576 if (COMPILE_LLVM (cfg)) {
2577 g_assert (cfg->llvm_this_reg != -1);
2578 gi->this_in_reg = 0;
2579 gi->this_reg = cfg->llvm_this_reg;
2580 gi->this_offset = cfg->llvm_this_offset;
2581 } else if (inst->opcode == OP_REGVAR) {
2582 gi->this_in_reg = 1;
2583 gi->this_reg = inst->dreg;
2585 g_assert (inst->opcode == OP_REGOFFSET);
2587 g_assert (inst->inst_basereg == X86_EBP);
2588 #elif defined(TARGET_AMD64)
2589 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2591 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2593 gi->this_in_reg = 0;
2594 gi->this_reg = inst->inst_basereg;
2595 gi->this_offset = inst->inst_offset;
2600 MonoTryBlockHoleTableJitInfo *table;
2603 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2604 table->num_holes = (guint16)num_holes;
2606 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2607 guint32 start_bb_offset;
2608 MonoTryBlockHoleJitInfo *hole;
2609 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2610 MonoExceptionClause *ec = hole_data->clause;
2611 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2612 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2613 g_assert (clause_last_bb);
2615 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2616 if (clause_last_bb->native_offset == hole_end)
2619 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2620 hole = &table->holes [i++];
2621 hole->clause = hole_data->clause - &header->clauses [0];
2622 hole->offset = (guint32)hole_data->start_offset;
2623 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2625 if (G_UNLIKELY (cfg->verbose_level >= 4))
2626 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2628 g_assert (i == num_holes);
2631 if (jinfo->has_arch_eh_info) {
2632 MonoArchEHJitInfo *info;
2634 info = mono_jit_info_get_arch_eh_info (jinfo);
2636 info->stack_size = stack_size;
2639 if (cfg->thunk_area) {
2640 MonoThunkJitInfo *info;
2642 info = mono_jit_info_get_thunk_info (jinfo);
2643 info->thunks_offset = cfg->thunks_offset;
2644 info->thunks_size = cfg->thunk_area;
2647 if (COMPILE_LLVM (cfg)) {
2649 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2650 } else if (header->num_clauses) {
2653 for (i = 0; i < header->num_clauses; i++) {
2654 MonoExceptionClause *ec = &header->clauses [i];
2655 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2656 MonoBasicBlock *tblock;
2659 ei->flags = ec->flags;
2661 if (G_UNLIKELY (cfg->verbose_level >= 4))
2662 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);
2664 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2665 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2667 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2668 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2670 ei->data.filter = cfg->native_code + tblock->native_offset;
2672 ei->data.catch_class = ec->data.catch_class;
2675 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2677 g_assert (tblock->native_offset);
2678 ei->try_start = cfg->native_code + tblock->native_offset;
2679 if (tblock->extend_try_block) {
2681 * Extend the try block backwards to include parts of the previous call
2684 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
2686 if (ec->try_offset + ec->try_len < header->code_size)
2687 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2689 tblock = cfg->bb_exit;
2690 if (G_UNLIKELY (cfg->verbose_level >= 4))
2691 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
2693 if (!tblock->native_offset) {
2695 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2696 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2697 if (bb && bb->native_offset) {
2703 ei->try_end = cfg->native_code + tblock->native_offset;
2704 g_assert (tblock->native_offset);
2705 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2707 ei->handler_start = cfg->native_code + tblock->native_offset;
2709 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2710 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2711 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2712 if (hole->clause == ec && hole_end == ei->try_end) {
2713 if (G_UNLIKELY (cfg->verbose_level >= 4))
2714 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2716 ei->try_end = cfg->native_code + hole->start_offset;
2721 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2723 if (ec->handler_offset + ec->handler_len < header->code_size) {
2724 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2725 if (tblock->native_offset) {
2726 end_offset = tblock->native_offset;
2730 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2731 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2732 if (bb && bb->native_offset) {
2737 end_offset = tblock->native_offset + tblock->native_length;
2740 end_offset = cfg->epilog_begin;
2742 ei->data.handler_end = cfg->native_code + end_offset;
2747 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2749 for (i = 0; i < jinfo->num_clauses; i++) {
2750 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2751 int start = (guint8*)ei->try_start - cfg->native_code;
2752 int end = (guint8*)ei->try_end - cfg->native_code;
2753 int handler = (guint8*)ei->handler_start - cfg->native_code;
2754 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2756 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2760 if (cfg->encoded_unwind_ops) {
2761 /* Generated by LLVM */
2762 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2763 g_free (cfg->encoded_unwind_ops);
2764 } else if (cfg->unwind_ops) {
2766 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2767 guint32 unwind_desc;
2769 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2771 if (cfg->has_unwind_info_for_epilog) {
2772 MonoArchEHJitInfo *info;
2774 info = mono_jit_info_get_arch_eh_info (jinfo);
2776 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2778 jinfo->unwind_info = unwind_desc;
2779 g_free (unwind_info);
2781 jinfo->unwind_info = cfg->used_int_regs;
2787 /* Return whenever METHOD is a gsharedvt method */
2789 is_gsharedvt_method (MonoMethod *method)
2791 MonoGenericContext *context;
2792 MonoGenericInst *inst;
2795 if (!method->is_inflated)
2797 context = mono_method_get_context (method);
2798 inst = context->class_inst;
2800 for (i = 0; i < inst->type_argc; ++i)
2801 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2804 inst = context->method_inst;
2806 for (i = 0; i < inst->type_argc; ++i)
2807 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2814 is_open_method (MonoMethod *method)
2816 MonoGenericContext *context;
2818 if (!method->is_inflated)
2820 context = mono_method_get_context (method);
2821 if (context->class_inst && context->class_inst->is_open)
2823 if (context->method_inst && context->method_inst->is_open)
2829 mono_insert_nop_in_empty_bb (MonoCompile *cfg)
2832 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2836 MONO_INST_NEW (cfg, nop, OP_NOP);
2837 MONO_ADD_INS (bb, nop);
2841 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
2843 MonoInst *poll_addr, *ins;
2845 if (cfg->disable_gc_safe_points)
2848 if (cfg->verbose_level > 1)
2849 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
2851 g_assert (mono_threads_is_coop_enabled ());
2852 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
2854 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
2855 ins->sreg1 = poll_addr->dreg;
2857 if (bblock->flags & BB_EXCEPTION_HANDLER) {
2858 MonoInst *eh_op = bblock->code;
2860 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
2863 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
2864 // skip all EH relateds ops
2865 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
2867 next_eh_op = eh_op->next;
2871 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
2872 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2873 } else if (bblock == cfg->bb_entry) {
2874 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
2875 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2878 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
2879 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2884 This code inserts safepoints into managed code at important code paths.
2887 -the first basic block
2888 -landing BB for exception handlers
2893 mono_insert_safepoints (MonoCompile *cfg)
2897 if (!mono_threads_is_coop_enabled ())
2900 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2901 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2902 g_assert (mono_threads_is_coop_enabled ());
2903 gpointer poll_func = &mono_threads_state_poll;
2905 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
2906 if (cfg->verbose_level > 1)
2907 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
2912 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
2913 if (cfg->verbose_level > 1)
2914 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
2918 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2919 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2921 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
2922 (info->d.icall.func == mono_thread_interruption_checkpoint ||
2923 info->d.icall.func == mono_threads_exit_gc_safe_region_unbalanced)) {
2924 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
2925 if (cfg->verbose_level > 1)
2926 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
2931 if (cfg->verbose_level > 1)
2932 printf ("INSERTING SAFEPOINTS\n");
2933 if (cfg->verbose_level > 2)
2934 mono_print_code (cfg, "BEFORE SAFEPOINTS");
2936 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2937 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
2938 mono_create_gc_safepoint (cfg, bb);
2941 if (cfg->verbose_level > 2)
2942 mono_print_code (cfg, "AFTER SAFEPOINTS");
2948 mono_insert_branches_between_bblocks (MonoCompile *cfg)
2952 /* Add branches between non-consecutive bblocks */
2953 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2954 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
2955 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
2956 /* we are careful when inverting, since bugs like #59580
2957 * could show up when dealing with NaNs.
2959 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
2960 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
2961 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
2962 bb->last_ins->inst_false_bb = tmp;
2964 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
2966 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
2967 inst->opcode = OP_BR;
2968 inst->inst_target_bb = bb->last_ins->inst_false_bb;
2969 mono_bblock_add_inst (bb, inst);
2974 if (cfg->verbose_level >= 4) {
2975 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2976 MonoInst *tree = bb->code;
2977 g_print ("DUMP BLOCK %d:\n", bb->block_num);
2980 for (; tree; tree = tree->next) {
2981 mono_print_ins_index (-1, tree);
2987 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2988 bb->max_vreg = cfg->next_vreg;
2993 init_backend (MonoBackend *backend)
2995 #ifdef MONO_ARCH_NEED_GOT_VAR
2996 backend->need_got_var = 1;
2998 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
2999 backend->have_card_table_wb = 1;
3001 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3002 backend->have_op_generic_class_init = 1;
3004 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3005 backend->emulate_mul_div = 1;
3007 #ifdef MONO_ARCH_EMULATE_DIV
3008 backend->emulate_div = 1;
3010 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3011 backend->emulate_long_shift_opts = 1;
3013 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3014 backend->have_objc_get_selector = 1;
3016 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE
3017 backend->have_generalized_imt_trampoline = 1;
3019 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3020 backend->gshared_supported = 1;
3022 if (MONO_ARCH_USE_FPSTACK)
3023 backend->use_fpstack = 1;
3024 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3025 backend->have_liverange_ops = 1;
3027 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3028 backend->have_op_tail_call = 1;
3030 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3031 backend->monitor_enter_adjustment = 1;
3033 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3035 #if defined(__mono_ilp32__)
3038 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3039 backend->have_dummy_init = 1;
3041 #ifdef MONO_ARCH_NEED_DIV_CHECK
3042 backend->need_div_check = 1;
3044 #ifdef NO_UNALIGNED_ACCESS
3045 backend->no_unaligned_access = 1;
3047 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3048 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3050 #ifdef MONO_ARCH_NO_DIV_WITH_MUL
3051 backend->disable_div_with_mul = 1;
3056 * mini_method_compile:
3057 * @method: the method to compile
3058 * @opts: the optimization flags to use
3059 * @domain: the domain where the method will be compiled in
3060 * @flags: compilation flags
3061 * @parts: debug flag
3063 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3064 * field in the returned struct to see if compilation succeded.
3067 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3069 MonoMethodHeader *header;
3070 MonoMethodSignature *sig;
3074 gboolean try_generic_shared, try_llvm = FALSE;
3075 MonoMethod *method_to_compile, *method_to_register;
3076 gboolean method_is_gshared = FALSE;
3077 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3078 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3079 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3080 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3081 gboolean gsharedvt_method = FALSE;
3083 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3085 static gboolean verbose_method_inited;
3086 static char *verbose_method_name;
3088 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3089 MONO_PROFILER_RAISE (jit_begin, (method));
3090 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3091 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3093 gsharedvt_method = is_gsharedvt_method (method);
3096 * In AOT mode, method can be the following:
3097 * - a gsharedvt method.
3098 * - a method inflated with type parameters. This is for ref/partial sharing.
3099 * - a method inflated with concrete types.
3102 if (is_open_method (method)) {
3103 try_generic_shared = TRUE;
3104 method_is_gshared = TRUE;
3106 try_generic_shared = FALSE;
3108 g_assert (opts & MONO_OPT_GSHARED);
3110 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3111 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3112 if (mini_is_gsharedvt_sharable_method (method)) {
3114 if (!mono_debug_count ())
3115 try_generic_shared = FALSE;
3121 if (try_generic_shared && !mono_debug_count ())
3122 try_generic_shared = FALSE;
3125 if (opts & MONO_OPT_GSHARED) {
3126 if (try_generic_shared)
3127 InterlockedIncrement (&mono_stats.generics_sharable_methods);
3128 else if (mono_method_is_generic_impl (method))
3129 InterlockedIncrement (&mono_stats.generics_unsharable_methods);
3133 try_llvm = mono_use_llvm || llvm;
3137 if (method_is_gshared) {
3138 method_to_compile = method;
3140 if (try_generic_shared) {
3141 method_to_compile = mini_get_shared_method (method);
3142 g_assert (method_to_compile);
3144 method_to_compile = method;
3148 cfg = g_new0 (MonoCompile, 1);
3149 cfg->method = method_to_compile;
3150 cfg->mempool = mono_mempool_new ();
3152 cfg->run_cctors = run_cctors;
3153 cfg->domain = domain;
3154 cfg->verbose_level = mini_verbose;
3155 cfg->compile_aot = compile_aot;
3156 cfg->full_aot = full_aot;
3157 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3158 cfg->skip_visibility = method->skip_visibility;
3159 cfg->orig_method = method;
3160 cfg->gen_seq_points = !debug_options.no_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3161 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3162 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3163 cfg->backend = current_backend;
3166 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3167 /* FIXME: Why is this needed */
3168 cfg->gen_seq_points = FALSE;
3169 cfg->gen_sdb_seq_points = FALSE;
3172 if (cfg->method->wrapper_type == MONO_WRAPPER_ALLOC) {
3173 /* We can't have seq points inside gc critical regions */
3174 cfg->gen_seq_points = FALSE;
3175 cfg->gen_sdb_seq_points = FALSE;
3177 /* coop requires loop detection to happen */
3178 if (mono_threads_is_coop_enabled ())
3179 cfg->opt |= MONO_OPT_LOOP;
3180 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3181 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3182 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3183 cfg->disable_direct_icalls = disable_direct_icalls;
3184 cfg->direct_pinvoke = (flags & JIT_FLAG_DIRECT_PINVOKE) != 0;
3185 if (try_generic_shared)
3186 cfg->gshared = TRUE;
3187 cfg->compile_llvm = try_llvm;
3188 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3189 if (cfg->compile_aot)
3190 cfg->method_index = aot_method_index;
3193 if (!mono_debug_count ())
3194 cfg->opt &= ~MONO_OPT_FLOAT32;
3197 cfg->opt &= ~MONO_OPT_SIMD;
3198 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3199 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3201 if (cfg->gen_seq_points)
3202 cfg->seq_points = g_ptr_array_new ();
3203 error_init (&cfg->error);
3205 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || mono_class_is_gtd (method->klass) || method_is_gshared)) {
3206 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3210 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3211 MonoMethodInflated *inflated;
3212 MonoGenericContext *context;
3214 if (gsharedvt_method) {
3215 g_assert (method->is_inflated);
3216 inflated = (MonoMethodInflated*)method;
3217 context = &inflated->context;
3219 /* We are compiling a gsharedvt method directly */
3220 g_assert (compile_aot);
3222 g_assert (method_to_compile->is_inflated);
3223 inflated = (MonoMethodInflated*)method_to_compile;
3224 context = &inflated->context;
3227 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3228 cfg->gsctx_context = context;
3230 cfg->gsharedvt = TRUE;
3231 if (!cfg->llvm_only) {
3232 cfg->disable_llvm = TRUE;
3233 cfg->exception_message = g_strdup ("gsharedvt");
3238 method_to_register = method_to_compile;
3240 g_assert (method == method_to_compile);
3241 method_to_register = method;
3243 cfg->method_to_register = method_to_register;
3246 sig = mono_method_signature_checked (cfg->method, &err);
3248 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3249 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3250 mono_error_cleanup (&err);
3251 if (MONO_METHOD_COMPILE_END_ENABLED ())
3252 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3256 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3258 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3259 if (MONO_METHOD_COMPILE_END_ENABLED ())
3260 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3266 static gboolean inited;
3272 * Check for methods which cannot be compiled by LLVM early, to avoid
3273 * the extra compilation pass.
3275 if (COMPILE_LLVM (cfg)) {
3276 mono_llvm_check_method_supported (cfg);
3277 if (cfg->disable_llvm) {
3278 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3279 //nm = mono_method_full_name (cfg->method, TRUE);
3280 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3283 if (cfg->llvm_only) {
3284 g_free (cfg->exception_message);
3285 cfg->disable_aot = TRUE;
3288 mono_destroy_compile (cfg);
3290 goto restart_compile;
3296 cfg->prof_flags = mono_profiler_get_call_instrumentation_flags (cfg->method);
3298 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3299 if (debug_options.mdb_optimizations || MONO_CFG_PROFILE_CALL_CONTEXT (cfg)) {
3300 cfg->disable_reuse_registers = TRUE;
3301 cfg->disable_reuse_stack_slots = TRUE;
3303 * This decreases the change the debugger will read registers/stack slots which are
3304 * not yet initialized.
3306 cfg->disable_initlocals_opt = TRUE;
3308 cfg->extend_live_ranges = TRUE;
3310 /* The debugger needs all locals to be on the stack or in a global register */
3311 cfg->disable_vreg_to_lvreg = TRUE;
3313 /* Don't remove unused variables when running inside the debugger since the user
3314 * may still want to view them. */
3315 cfg->disable_deadce_vars = TRUE;
3317 cfg->opt &= ~MONO_OPT_DEADCE;
3318 cfg->opt &= ~MONO_OPT_INLINE;
3319 cfg->opt &= ~MONO_OPT_COPYPROP;
3320 cfg->opt &= ~MONO_OPT_CONSPROP;
3322 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3323 cfg->disable_out_of_line_bblocks = TRUE;
3326 if (mono_using_xdebug) {
3328 * Make each variable use its own register/stack slot and extend
3329 * their liveness to cover the whole method, making them displayable
3330 * in gdb even after they are dead.
3332 cfg->disable_reuse_registers = TRUE;
3333 cfg->disable_reuse_stack_slots = TRUE;
3334 cfg->extend_live_ranges = TRUE;
3335 cfg->compute_precise_live_ranges = TRUE;
3338 mini_gc_init_cfg (cfg);
3340 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
3341 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3343 /* These wrappers are using linkonce linkage, so they can't access GOT slots */
3344 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) {
3345 cfg->disable_gc_safe_points = TRUE;
3346 /* This is safe, these wrappers only store to the stack */
3347 cfg->gen_write_barriers = FALSE;
3351 if (COMPILE_LLVM (cfg)) {
3352 cfg->opt |= MONO_OPT_ABCREM;
3355 if (!verbose_method_inited) {
3356 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3357 verbose_method_inited = TRUE;
3359 if (verbose_method_name) {
3360 const char *name = verbose_method_name;
3362 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3363 MonoMethodDesc *desc;
3365 desc = mono_method_desc_new (name, TRUE);
3366 if (mono_method_desc_full_match (desc, cfg->method)) {
3367 cfg->verbose_level = 4;
3369 mono_method_desc_free (desc);
3371 if (strcmp (cfg->method->name, name) == 0)
3372 cfg->verbose_level = 4;
3376 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3378 if (cfg->verbose_level > 0) {
3381 method_name = mono_method_get_full_name (method);
3382 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3384 if (COMPILE_LLVM (cfg))
3385 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3386 else if (cfg->gsharedvt)
3387 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3388 else if (cfg->gshared)
3389 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3391 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3393 g_free (method_name);
3396 if (cfg->opt & MONO_OPT_ABCREM)
3397 cfg->opt |= MONO_OPT_SSA;
3399 cfg->rs = mono_regstate_new ();
3400 cfg->next_vreg = cfg->rs->next_vreg;
3402 /* FIXME: Fix SSA to handle branches inside bblocks */
3403 if (cfg->opt & MONO_OPT_SSA)
3404 cfg->enable_extended_bblocks = FALSE;
3407 * FIXME: This confuses liveness analysis because variables which are assigned after
3408 * a branch inside a bblock become part of the kill set, even though the assignment
3409 * might not get executed. This causes the optimize_initlocals pass to delete some
3410 * assignments which are needed.
3411 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3414 //cfg->enable_extended_bblocks = TRUE;
3416 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3417 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3418 if (mini_get_debug_options ()->break_on_unverified)
3424 * create MonoInst* which represents arguments and local variables
3426 mono_compile_create_vars (cfg);
3428 mono_cfg_dump_create_context (cfg);
3429 mono_cfg_dump_begin_group (cfg);
3431 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));
3432 mono_cfg_dump_ir (cfg, "method-to-ir");
3434 if (cfg->gdump_ctx != NULL) {
3435 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3436 mono_insert_nop_in_empty_bb (cfg);
3437 mono_cfg_dump_ir (cfg, "mono_insert_nop_in_empty_bb");
3441 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3443 if (MONO_METHOD_COMPILE_END_ENABLED ())
3444 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3447 mono_destroy_compile (cfg);
3448 try_generic_shared = FALSE;
3449 goto restart_compile;
3451 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3453 if (MONO_METHOD_COMPILE_END_ENABLED ())
3454 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3455 /* cfg contains the details of the failure, so let the caller cleanup */
3459 cfg->stat_basic_blocks += cfg->num_bblocks;
3461 if (COMPILE_LLVM (cfg)) {
3464 /* The IR has to be in SSA form for LLVM */
3465 cfg->opt |= MONO_OPT_SSA;
3469 // Allow SSA on the result value
3470 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3472 // Add an explicit return instruction referencing the return value
3473 MONO_INST_NEW (cfg, ins, OP_SETRET);
3474 ins->sreg1 = cfg->ret->dreg;
3476 MONO_ADD_INS (cfg->bb_exit, ins);
3479 cfg->opt &= ~MONO_OPT_LINEARS;
3482 cfg->opt &= ~MONO_OPT_BRANCH;
3485 /* todo: remove code when we have verified that the liveness for try/catch blocks
3489 * Currently, this can't be commented out since exception blocks are not
3490 * processed during liveness analysis.
3491 * It is also needed, because otherwise the local optimization passes would
3492 * delete assignments in cases like this:
3494 * <something which throws>
3496 * This also allows SSA to be run on methods containing exception clauses, since
3497 * SSA will ignore variables marked VOLATILE.
3499 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3500 mono_cfg_dump_ir (cfg, "liveness_handle_exception_clauses");
3502 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3503 mono_cfg_dump_ir (cfg, "handle_out_of_line_bblock");
3505 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3507 if (!COMPILE_LLVM (cfg)) {
3508 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3509 mono_cfg_dump_ir (cfg, "decompose_long_opts");
3512 /* Should be done before branch opts */
3513 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP)) {
3514 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3515 mono_cfg_dump_ir (cfg, "local_cprop");
3518 if (cfg->flags & MONO_CFG_HAS_TYPE_CHECK) {
3519 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_typechecks, mono_decompose_typechecks (cfg));
3520 if (cfg->gdump_ctx != NULL) {
3521 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3522 mono_insert_nop_in_empty_bb (cfg);
3524 mono_cfg_dump_ir (cfg, "decompose_typechecks");
3528 * Should be done after cprop which can do strength reduction on
3529 * some of these ops, after propagating immediates.
3531 if (cfg->has_emulated_ops) {
3532 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3533 mono_cfg_dump_ir (cfg, "local_emulate_ops");
3536 if (cfg->opt & MONO_OPT_BRANCH) {
3537 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3538 mono_cfg_dump_ir (cfg, "optimize_branches");
3541 /* This must be done _before_ global reg alloc and _after_ decompose */
3542 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3543 mono_cfg_dump_ir (cfg, "handle_global_vregs");
3544 if (cfg->opt & MONO_OPT_DEADCE) {
3545 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3546 mono_cfg_dump_ir (cfg, "local_deadce");
3548 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS) {
3549 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3550 mono_cfg_dump_ir (cfg, "local_alias_analysis");
3552 /* Disable this for LLVM to make the IR easier to handle */
3553 if (!COMPILE_LLVM (cfg)) {
3554 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3555 mono_cfg_dump_ir (cfg, "if_conversion");
3558 mono_threads_safepoint ();
3560 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3561 mono_cfg_dump_ir (cfg, "bb_ordering");
3563 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3565 * we disable some optimizations if there are too many variables
3566 * because JIT time may become too expensive. The actual number needs
3567 * to be tweaked and eventually the non-linear algorithms should be fixed.
3569 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3570 cfg->disable_ssa = TRUE;
3573 if (cfg->num_varinfo > 10000 && !cfg->llvm_only)
3574 /* Disable llvm for overly complex methods */
3575 cfg->disable_ssa = TRUE;
3577 if (cfg->opt & MONO_OPT_LOOP) {
3578 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3579 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3582 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3583 mono_cfg_dump_ir (cfg, "insert_safepoints");
3585 /* after method_to_ir */
3587 if (MONO_METHOD_COMPILE_END_ENABLED ())
3588 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3593 if (header->num_clauses)
3594 cfg->disable_ssa = TRUE;
3597 //#define DEBUGSSA "logic_run"
3598 //#define DEBUGSSA_CLASS "Tests"
3601 if (!cfg->disable_ssa) {
3602 mono_local_cprop (cfg);
3605 mono_ssa_compute (cfg);
3609 if (cfg->opt & MONO_OPT_SSA) {
3610 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3612 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3613 mono_cfg_dump_ir (cfg, "ssa_compute");
3616 if (cfg->verbose_level >= 2) {
3623 /* after SSA translation */
3625 if (MONO_METHOD_COMPILE_END_ENABLED ())
3626 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3630 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3631 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3633 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3634 mono_cfg_dump_ir (cfg, "ssa_cprop");
3640 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3641 //mono_ssa_strength_reduction (cfg);
3643 if (cfg->opt & MONO_OPT_DEADCE) {
3644 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3645 mono_cfg_dump_ir (cfg, "ssa_deadce");
3648 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM)) {
3649 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3650 mono_cfg_dump_ir (cfg, "perform_abc_removal");
3653 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3654 mono_cfg_dump_ir (cfg, "ssa_remove");
3655 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3656 mono_cfg_dump_ir (cfg, "local_cprop2");
3657 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3658 mono_cfg_dump_ir (cfg, "handle_global_vregs2");
3659 if (cfg->opt & MONO_OPT_DEADCE) {
3660 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3661 mono_cfg_dump_ir (cfg, "local_deadce2");
3664 if (cfg->opt & MONO_OPT_BRANCH) {
3665 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3666 mono_cfg_dump_ir (cfg, "optimize_branches2");
3671 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3672 mono_ssa_loop_invariant_code_motion (cfg);
3673 mono_cfg_dump_ir (cfg, "loop_invariant_code_motion");
3674 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3675 if (cfg->opt & MONO_OPT_ABCREM) {
3676 mono_perform_abc_removal (cfg);
3677 mono_cfg_dump_ir (cfg, "abc_removal");
3681 /* after SSA removal */
3683 if (MONO_METHOD_COMPILE_END_ENABLED ())
3684 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3688 if (cfg->llvm_only && cfg->gsharedvt)
3689 mono_ssa_remove_gsharedvt (cfg);
3691 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3692 if (COMPILE_SOFT_FLOAT (cfg))
3693 mono_decompose_soft_float (cfg);
3695 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3696 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS) {
3697 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3698 mono_cfg_dump_ir (cfg, "decompose_array_access_opts");
3702 #ifndef MONO_ARCH_GOT_REG
3707 g_assert (cfg->got_var_allocated);
3710 * Allways allocate the GOT var to a register, because keeping it
3711 * in memory will increase the number of live temporaries in some
3712 * code created by inssel.brg, leading to the well known spills+
3713 * branches problem. Testcase: mcs crash in
3714 * System.MonoCustomAttrs:GetCustomAttributes.
3716 #ifdef MONO_ARCH_GOT_REG
3717 got_reg = MONO_ARCH_GOT_REG;
3719 regs = mono_arch_get_global_int_regs (cfg);
3721 got_reg = GPOINTER_TO_INT (regs->data);
3724 cfg->got_var->opcode = OP_REGVAR;
3725 cfg->got_var->dreg = got_reg;
3726 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3730 * Have to call this again to process variables added since the first call.
3732 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3734 if (cfg->opt & MONO_OPT_LINEARS) {
3735 GList *vars, *regs, *l;
3737 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3738 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3739 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3740 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3742 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3743 regs = mono_arch_get_global_int_regs (cfg);
3744 /* Remove the reg reserved for holding the GOT address */
3746 for (l = regs; l; l = l->next) {
3747 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3748 regs = g_list_delete_link (regs, l);
3753 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
3754 mono_cfg_dump_ir (cfg, "linear_scan");
3758 //mono_print_code (cfg, "");
3762 /* variables are allocated after decompose, since decompose could create temps */
3763 if (!COMPILE_LLVM (cfg)) {
3764 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
3765 mono_cfg_dump_ir (cfg, "arch_allocate_vars");
3766 if (cfg->exception_type)
3771 mono_allocate_gsharedvt_vars (cfg);
3773 if (!COMPILE_LLVM (cfg)) {
3774 gboolean need_local_opts;
3775 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
3776 mono_cfg_dump_ir (cfg, "spill_global_vars");
3778 if (need_local_opts || cfg->compile_aot) {
3779 /* To optimize code created by spill_global_vars */
3780 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
3781 if (cfg->opt & MONO_OPT_DEADCE)
3782 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
3783 mono_cfg_dump_ir (cfg, "needs_local_opts");
3787 mono_insert_branches_between_bblocks (cfg);
3789 if (COMPILE_LLVM (cfg)) {
3793 /* The IR has to be in SSA form for LLVM */
3794 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3795 cfg->exception_message = g_strdup ("SSA disabled.");
3796 cfg->disable_llvm = TRUE;
3799 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3800 mono_decompose_array_access_opts (cfg);
3802 if (!cfg->disable_llvm)
3803 mono_llvm_emit_method (cfg);
3804 if (cfg->disable_llvm) {
3805 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3806 //nm = mono_method_full_name (cfg->method, TRUE);
3807 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3810 if (cfg->llvm_only) {
3811 cfg->disable_aot = TRUE;
3814 mono_destroy_compile (cfg);
3816 goto restart_compile;
3819 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3820 nm = mono_method_full_name (cfg->method, TRUE);
3821 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3823 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3828 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
3829 mono_cfg_dump_ir (cfg, "codegen");
3830 if (cfg->exception_type)
3834 if (COMPILE_LLVM (cfg))
3835 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3837 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3839 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
3841 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3842 if (cfg->extend_live_ranges) {
3843 /* Extend live ranges to cover the whole method */
3844 for (i = 0; i < cfg->num_varinfo; ++i)
3845 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3849 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
3850 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
3852 if (!cfg->compile_aot) {
3853 mono_save_xdebug_info (cfg);
3854 mono_lldb_save_method_info (cfg);
3857 if (cfg->verbose_level >= 2) {
3858 char *id = mono_method_full_name (cfg->method, FALSE);
3859 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3863 if (!cfg->compile_aot && !(flags & JIT_FLAG_DISCARD_RESULTS)) {
3864 mono_domain_lock (cfg->domain);
3865 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
3867 if (cfg->method->dynamic)
3868 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
3869 mono_domain_unlock (cfg->domain);
3874 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
3877 /* collect statistics */
3878 #ifndef DISABLE_PERFCOUNTERS
3879 InterlockedIncrement (&mono_perfcounters->jit_methods);
3880 InterlockedAdd (&mono_perfcounters->jit_bytes, header->code_size);
3882 gint32 code_size_ratio = cfg->code_len;
3883 InterlockedAdd (&mono_jit_stats.allocated_code_size, code_size_ratio);
3884 InterlockedAdd (&mono_jit_stats.native_code_size, code_size_ratio);
3885 /* FIXME: use an explicit function to read booleans */
3886 if ((gboolean)InterlockedRead ((gint32*)&mono_jit_stats.enabled)) {
3887 if (code_size_ratio > InterlockedRead (&mono_jit_stats.biggest_method_size)) {
3888 InterlockedWrite (&mono_jit_stats.biggest_method_size, code_size_ratio);
3889 char *biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3890 biggest_method = InterlockedExchangePointer ((gpointer*)&mono_jit_stats.biggest_method, biggest_method);
3891 g_free (biggest_method);
3893 code_size_ratio = (code_size_ratio * 100) / header->code_size;
3894 if (code_size_ratio > InterlockedRead (&mono_jit_stats.max_code_size_ratio)) {
3895 InterlockedWrite (&mono_jit_stats.max_code_size_ratio, code_size_ratio);
3896 char *max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3897 max_ratio_method = InterlockedExchangePointer ((gpointer*)&mono_jit_stats.max_ratio_method, max_ratio_method);
3898 g_free (max_ratio_method);
3902 if (MONO_METHOD_COMPILE_END_ENABLED ())
3903 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3905 mono_cfg_dump_close_group (cfg);
3911 mini_class_has_reference_variant_generic_argument (MonoCompile *cfg, MonoClass *klass, int context_used)
3914 MonoGenericContainer *container;
3915 MonoGenericInst *ginst;
3917 if (mono_class_is_ginst (klass)) {
3918 container = mono_class_get_generic_container (mono_class_get_generic_class (klass)->container_class);
3919 ginst = mono_class_get_generic_class (klass)->context.class_inst;
3920 } else if (mono_class_is_gtd (klass) && context_used) {
3921 container = mono_class_get_generic_container (klass);
3922 ginst = container->context.class_inst;
3927 for (i = 0; i < container->type_argc; ++i) {
3929 if (!(mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT)))
3931 type = ginst->type_argv [i];
3932 if (mini_type_is_reference (type))
3939 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
3941 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
3945 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
3947 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
3948 hole->clause = clause;
3949 hole->start_offset = start - cfg->native_code;
3950 hole->basic_block = bb;
3952 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
3956 mono_cfg_set_exception (MonoCompile *cfg, int type)
3958 cfg->exception_type = type;
3961 /* Assumes ownership of the MSG argument */
3963 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
3965 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3966 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", "%s", msg);
3969 #endif /* DISABLE_JIT */
3972 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
3974 MonoDomain *domain = mono_get_root_domain ();
3979 if (info->uw_info) {
3980 uw_info = info->uw_info;
3981 info_len = info->uw_info_len;
3983 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
3986 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
3987 jinfo->d.method = wrapper;
3988 jinfo->code_start = info->code;
3989 jinfo->code_size = info->code_size;
3990 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
3998 GTimer *mono_time_track_start ()
4000 return g_timer_new ();
4004 * mono_time_track_end:
4006 * Uses UnlockedAddDouble () to update \param time.
4008 void mono_time_track_end (gdouble *time, GTimer *timer)
4010 g_timer_stop (timer);
4011 UnlockedAddDouble (time, g_timer_elapsed (timer, NULL));
4012 g_timer_destroy (timer);
4016 * mono_update_jit_stats:
4018 * Only call this function in locked environments to avoid data races.
4020 MONO_NO_SANITIZE_THREAD
4022 mono_update_jit_stats (MonoCompile *cfg)
4024 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4025 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4026 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4027 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4028 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4029 mono_jit_stats.regvars += cfg->stat_n_regvars;
4030 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4031 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4032 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4036 * mono_jit_compile_method_inner:
4038 * Main entry point for the JIT.
4041 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4044 gpointer code = NULL;
4045 MonoJitInfo *jinfo, *info;
4047 MonoException *ex = NULL;
4049 MonoMethod *prof_method, *shared;
4053 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4054 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4056 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4058 if (!piinfo->addr) {
4059 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4060 piinfo->addr = mono_lookup_internal_call (method);
4061 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4063 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);
4065 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);
4068 mono_lookup_pinvoke_call (method, NULL, NULL);
4070 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4071 gpointer compiled_method = mono_compile_method_checked (nm, error);
4072 return_val_if_nok (error, NULL);
4073 code = mono_get_addr_from_ftnptr (compiled_method);
4074 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4076 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4078 MONO_PROFILER_RAISE (jit_done, (method, jinfo));
4080 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4081 const char *name = method->name;
4082 char *full_name, *msg;
4085 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4086 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4087 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4090 * We need to make sure this wrapper
4091 * is compiled because it might end up
4092 * in an (M)RGCTX if generic sharing
4093 * is enabled, and would be called
4094 * indirectly. If it were a
4095 * trampoline we'd try to patch that
4096 * indirect call, which is not
4099 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4100 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4101 if (mono_llvm_only) {
4102 nm = mono_marshal_get_delegate_invoke (method, NULL);
4103 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4104 mono_error_assert_ok (error);
4105 return mono_get_addr_from_ftnptr (compiled_ptr);
4107 return mono_create_delegate_trampoline (target_domain, method->klass);
4108 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4109 nm = mono_marshal_get_delegate_begin_invoke (method);
4110 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4111 mono_error_assert_ok (error);
4112 return mono_get_addr_from_ftnptr (compiled_ptr);
4113 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4114 nm = mono_marshal_get_delegate_end_invoke (method);
4115 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4116 mono_error_assert_ok (error);
4117 return mono_get_addr_from_ftnptr (compiled_ptr);
4121 full_name = mono_method_full_name (method, TRUE);
4122 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4123 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4124 mono_error_set_exception_instance (error, ex);
4130 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4131 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4133 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4134 static MonoTrampInfo *in_tinfo, *out_tinfo;
4135 MonoTrampInfo *tinfo;
4137 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4139 if (is_in && in_tinfo)
4140 return in_tinfo->code;
4141 else if (!is_in && out_tinfo)
4142 return out_tinfo->code;
4145 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4147 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4150 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4152 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4153 jinfo = create_jit_info_for_trampoline (method, tinfo);
4154 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4163 if (mono_aot_only) {
4164 char *fullname = mono_method_full_name (method, TRUE);
4165 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);
4171 jit_timer = mono_time_track_start ();
4172 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4173 gdouble jit_time = 0.0;
4174 mono_time_track_end (&jit_time, jit_timer);
4175 UnlockedAddDouble (&mono_jit_stats.jit_time, jit_time);
4177 prof_method = cfg->method;
4179 switch (cfg->exception_type) {
4180 case MONO_EXCEPTION_NONE:
4182 case MONO_EXCEPTION_TYPE_LOAD:
4183 case MONO_EXCEPTION_MISSING_FIELD:
4184 case MONO_EXCEPTION_MISSING_METHOD:
4185 case MONO_EXCEPTION_FILE_NOT_FOUND:
4186 case MONO_EXCEPTION_BAD_IMAGE:
4187 case MONO_EXCEPTION_INVALID_PROGRAM: {
4188 /* Throw a type load exception if needed */
4189 if (cfg->exception_ptr) {
4190 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4192 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4193 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4194 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4195 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4196 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4197 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4198 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4199 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4200 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4201 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4202 else if (cfg->exception_type == MONO_EXCEPTION_INVALID_PROGRAM)
4203 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4205 g_assert_not_reached ();
4209 case MONO_EXCEPTION_MONO_ERROR:
4210 // FIXME: MonoError has no copy ctor
4211 g_assert (!mono_error_ok (&cfg->error));
4212 ex = mono_error_convert_to_exception (&cfg->error);
4215 g_assert_not_reached ();
4219 MONO_PROFILER_RAISE (jit_failed, (method));
4221 mono_destroy_compile (cfg);
4222 mono_error_set_exception_instance (error, ex);
4227 if (mono_method_is_generic_sharable (method, FALSE))
4228 shared = mini_get_shared_method (method);
4232 mono_domain_lock (target_domain);
4234 /* Check if some other thread already did the job. In this case, we can
4235 discard the code this thread generated. */
4237 info = mini_lookup_method (target_domain, method, shared);
4239 /* We can't use a domain specific method in another domain */
4240 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4241 code = info->code_start;
4243 discarded_jit_time += jit_time;
4247 /* The lookup + insert is atomic since this is done inside the domain lock */
4248 mono_domain_jit_code_hash_lock (target_domain);
4249 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4250 mono_domain_jit_code_hash_unlock (target_domain);
4252 code = cfg->native_code;
4254 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4255 InterlockedIncrement (&mono_stats.generics_shared_methods);
4257 InterlockedIncrement (&mono_stats.gsharedvt_methods);
4260 jinfo = cfg->jit_info;
4263 * Update global stats while holding a lock, instead of doing many
4264 * InterlockedIncrement operations during JITting.
4266 mono_update_jit_stats (cfg);
4268 mono_destroy_compile (cfg);
4271 if (domain_jit_info (target_domain)->jump_target_hash) {
4272 MonoJumpInfo patch_info;
4273 MonoJumpList *jlist;
4275 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4277 patch_info.next = NULL;
4278 patch_info.ip.i = 0;
4279 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4280 patch_info.data.method = method;
4281 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4283 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4284 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4285 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4286 if (!mono_error_ok (error))
4288 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4291 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4292 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE, error);
4300 /* Update llvm callees */
4301 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4302 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4305 for (l = callees; l; l = l->next) {
4306 gpointer *addr = (gpointer*)l->data;
4312 mono_emit_jit_map (jinfo);
4314 mono_domain_unlock (target_domain);
4316 if (!mono_error_ok (error))
4319 vtable = mono_class_vtable (target_domain, method->klass);
4321 g_assert (mono_class_has_failure (method->klass));
4322 mono_error_set_for_class_failure (error, method->klass);
4326 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4327 if (mono_marshal_method_from_wrapper (method)) {
4328 /* Native func wrappers have no method */
4329 /* The profiler doesn't know about wrappers, so pass the original icall method */
4330 MONO_PROFILER_RAISE (jit_done, (mono_marshal_method_from_wrapper (method), jinfo));
4333 MONO_PROFILER_RAISE (jit_done, (method, jinfo));
4334 if (prof_method != method)
4335 MONO_PROFILER_RAISE (jit_done, (prof_method, jinfo));
4337 if (!(method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE ||
4338 method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK ||
4339 method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)) {
4340 if (!mono_runtime_class_init_full (vtable, error))
4347 * mini_get_underlying_type:
4349 * Return the type the JIT will use during compilation.
4350 * Handles: byref, enums, native types, bool/char, ref types, generic sharing.
4351 * For gsharedvt types, it will return the original VAR/MVAR.
4354 mini_get_underlying_type (MonoType *type)
4356 return mini_type_get_underlying_type (type);
4360 mini_jit_init (void)
4362 mono_counters_register ("Discarded method code", MONO_COUNTER_JIT | MONO_COUNTER_INT, &discarded_code);
4363 mono_counters_register ("Time spent JITting discarded code", MONO_COUNTER_JIT | MONO_COUNTER_DOUBLE, &discarded_jit_time);
4365 mono_os_mutex_init_recursive (&jit_mutex);
4367 current_backend = g_new0 (MonoBackend, 1);
4368 init_backend (current_backend);
4373 mini_jit_cleanup (void)
4376 g_free (emul_opcode_map);
4377 g_free (emul_opcode_opcodes);
4383 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4385 g_assert_not_reached ();
4388 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4390 g_assert_not_reached ();
4395 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4398 mono_llvm_cpp_throw_exception (void)
4400 g_assert_not_reached ();
4408 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4410 g_assert_not_reached ();
4415 mono_destroy_compile (MonoCompile *cfg)
4417 g_assert_not_reached ();
4421 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4423 g_assert_not_reached ();
4426 #endif /* DISABLE_JIT */