2 * mini.c: The new Mono code generator.
5 * Paolo Molaro (lupus@ximian.com)
6 * Dietmar Maurer (dietmar@ximian.com)
8 * Copyright 2002-2003 Ximian, Inc.
9 * Copyright 2003-2010 Novell, Inc.
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #ifdef HAVE_SYS_TIME_H
26 #include <mono/utils/memcheck.h>
28 #include <mono/metadata/assembly.h>
29 #include <mono/metadata/loader.h>
30 #include <mono/metadata/tabledefs.h>
31 #include <mono/metadata/class.h>
32 #include <mono/metadata/object.h>
33 #include <mono/metadata/tokentype.h>
34 #include <mono/metadata/tabledefs.h>
35 #include <mono/metadata/threads.h>
36 #include <mono/metadata/appdomain.h>
37 #include <mono/metadata/debug-helpers.h>
38 #include "mono/metadata/profiler.h"
39 #include <mono/metadata/profiler-private.h>
40 #include <mono/metadata/mono-config.h>
41 #include <mono/metadata/environment.h>
42 #include <mono/metadata/mono-debug.h>
43 #include <mono/metadata/gc-internals.h>
44 #include <mono/metadata/threads-types.h>
45 #include <mono/metadata/verify.h>
46 #include <mono/metadata/verify-internals.h>
47 #include <mono/metadata/mempool-internals.h>
48 #include <mono/metadata/attach.h>
49 #include <mono/metadata/runtime.h>
50 #include <mono/utils/mono-math.h>
51 #include <mono/utils/mono-compiler.h>
52 #include <mono/utils/mono-counters.h>
53 #include <mono/utils/mono-error-internals.h>
54 #include <mono/utils/mono-logger-internals.h>
55 #include <mono/utils/mono-mmap.h>
56 #include <mono/utils/mono-path.h>
57 #include <mono/utils/mono-tls.h>
58 #include <mono/utils/mono-hwcap.h>
59 #include <mono/utils/dtrace.h>
60 #include <mono/utils/mono-threads.h>
61 #include <mono/utils/mono-threads-coop.h>
62 #include <mono/io-layer/io-layer.h>
65 #include "seq-points.h"
73 #include "jit-icalls.h"
76 #include "debugger-agent.h"
77 #include "llvm-runtime.h"
78 #include "mini-llvm.h"
80 MonoTraceSpec *mono_jit_trace_calls;
81 MonoMethodDesc *mono_inject_async_exc_method;
82 int mono_inject_async_exc_pos;
83 MonoMethodDesc *mono_break_at_bb_method;
84 int mono_break_at_bb_bb_num;
85 gboolean mono_do_x86_stack_align = TRUE;
86 gboolean mono_using_xdebug;
88 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
89 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
90 static mono_mutex_t jit_mutex;
92 MonoBackend *current_backend;
97 mono_realloc_native_code (MonoCompile *cfg)
99 return g_realloc (cfg->native_code, cfg->code_size);
103 MonoExceptionClause *clause;
104 MonoBasicBlock *basic_block;
109 * mono_emit_unwind_op:
111 * Add an unwind op with the given parameters for the list of unwind ops stored in
115 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
117 MonoUnwindOp *op = (MonoUnwindOp *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
124 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
125 if (cfg->verbose_level > 1) {
128 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
130 case DW_CFA_def_cfa_register:
131 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
133 case DW_CFA_def_cfa_offset:
134 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
137 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
143 #define MONO_INIT_VARINFO(vi,id) do { \
144 (vi)->range.first_use.pos.bid = 0xffff; \
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 type = &type->data.generic_class->container_class->byval_arg;
372 g_assert (mini_type_var_is_vt (type));
373 return OP_STOREV_MEMBASE;
375 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
381 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
383 type = mini_get_underlying_type (type);
385 switch (type->type) {
387 return OP_LOADI1_MEMBASE;
389 return OP_LOADU1_MEMBASE;
391 return OP_LOADI2_MEMBASE;
393 return OP_LOADU2_MEMBASE;
395 return OP_LOADI4_MEMBASE;
397 return OP_LOADU4_MEMBASE;
401 case MONO_TYPE_FNPTR:
402 return OP_LOAD_MEMBASE;
403 case MONO_TYPE_CLASS:
404 case MONO_TYPE_STRING:
405 case MONO_TYPE_OBJECT:
406 case MONO_TYPE_SZARRAY:
407 case MONO_TYPE_ARRAY:
408 return OP_LOAD_MEMBASE;
411 return OP_LOADI8_MEMBASE;
413 return OP_LOADR4_MEMBASE;
415 return OP_LOADR8_MEMBASE;
416 case MONO_TYPE_VALUETYPE:
417 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
418 return OP_LOADX_MEMBASE;
419 case MONO_TYPE_TYPEDBYREF:
420 return OP_LOADV_MEMBASE;
421 case MONO_TYPE_GENERICINST:
422 if (mono_type_generic_inst_is_valuetype (type))
423 return OP_LOADV_MEMBASE;
425 return OP_LOAD_MEMBASE;
429 g_assert (cfg->gshared);
430 g_assert (mini_type_var_is_vt (type));
431 return OP_LOADV_MEMBASE;
433 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
439 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
441 type = mini_get_underlying_type (type);
442 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
443 g_assert (mini_type_var_is_vt (type));
446 return mono_type_to_stind (type);
450 mono_op_imm_to_op (int opcode)
454 #if SIZEOF_REGISTER == 4
472 #if SIZEOF_REGISTER == 4
478 #if SIZEOF_REGISTER == 4
484 #if SIZEOF_REGISTER == 4
530 #if SIZEOF_REGISTER == 4
536 #if SIZEOF_REGISTER == 4
555 case OP_ICOMPARE_IMM:
557 case OP_LOCALLOC_IMM:
565 * mono_decompose_op_imm:
567 * Replace the OP_.._IMM INS with its non IMM variant.
570 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
572 int opcode2 = mono_op_imm_to_op (ins->opcode);
575 const char *spec = INS_INFO (ins->opcode);
577 if (spec [MONO_INST_SRC2] == 'l') {
578 dreg = mono_alloc_lreg (cfg);
580 /* Load the 64bit constant using decomposed ops */
581 MONO_INST_NEW (cfg, temp, OP_ICONST);
582 temp->inst_c0 = ins->inst_ls_word;
583 temp->dreg = MONO_LVREG_LS (dreg);
584 mono_bblock_insert_before_ins (bb, ins, temp);
586 MONO_INST_NEW (cfg, temp, OP_ICONST);
587 temp->inst_c0 = ins->inst_ms_word;
588 temp->dreg = MONO_LVREG_MS (dreg);
590 dreg = mono_alloc_ireg (cfg);
592 MONO_INST_NEW (cfg, temp, OP_ICONST);
593 temp->inst_c0 = ins->inst_imm;
597 mono_bblock_insert_before_ins (bb, ins, temp);
600 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
601 ins->opcode = opcode2;
603 if (ins->opcode == OP_LOCALLOC)
608 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
612 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
614 if (vreg >= cfg->vreg_to_inst_len) {
615 MonoInst **tmp = cfg->vreg_to_inst;
616 int size = cfg->vreg_to_inst_len;
618 while (vreg >= cfg->vreg_to_inst_len)
619 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
620 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
622 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
624 cfg->vreg_to_inst [vreg] = inst;
627 #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)))
628 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
631 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
634 int num = cfg->num_varinfo;
637 type = mini_get_underlying_type (type);
639 if ((num + 1) >= cfg->varinfo_count) {
640 int orig_count = cfg->varinfo_count;
641 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
642 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
643 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
644 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
647 cfg->stat_allocate_var++;
649 MONO_INST_NEW (cfg, inst, opcode);
651 inst->inst_vtype = type;
652 inst->klass = mono_class_from_mono_type (type);
653 type_to_eval_stack_type (cfg, type, inst);
654 /* if set to 1 the variable is native */
655 inst->backend.is_pinvoke = 0;
658 if (mono_class_has_failure (inst->klass))
659 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
661 if (cfg->compute_gc_maps) {
663 mono_mark_vreg_as_mp (cfg, vreg);
665 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
666 inst->flags |= MONO_INST_GC_TRACK;
667 mono_mark_vreg_as_ref (cfg, vreg);
672 cfg->varinfo [num] = inst;
674 MONO_INIT_VARINFO (&cfg->vars [num], num);
675 MONO_VARINFO (cfg, num)->vreg = vreg;
678 set_vreg_to_inst (cfg, vreg, inst);
680 #if SIZEOF_REGISTER == 4
681 if (mono_arch_is_soft_float ()) {
682 regpair = mono_type_is_long (type) || mono_type_is_float (type);
684 regpair = mono_type_is_long (type);
694 * These two cannot be allocated using create_var_for_vreg since that would
695 * put it into the cfg->varinfo array, confusing many parts of the JIT.
699 * Set flags to VOLATILE so SSA skips it.
702 if (cfg->verbose_level >= 4) {
703 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
706 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
707 if (mono_type_is_float (type))
708 inst->flags = MONO_INST_VOLATILE;
711 /* Allocate a dummy MonoInst for the first vreg */
712 MONO_INST_NEW (cfg, tree, OP_LOCAL);
713 tree->dreg = MONO_LVREG_LS (inst->dreg);
714 if (cfg->opt & MONO_OPT_SSA)
715 tree->flags = MONO_INST_VOLATILE;
717 tree->type = STACK_I4;
718 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
719 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
721 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
723 /* Allocate a dummy MonoInst for the second vreg */
724 MONO_INST_NEW (cfg, tree, OP_LOCAL);
725 tree->dreg = MONO_LVREG_MS (inst->dreg);
726 if (cfg->opt & MONO_OPT_SSA)
727 tree->flags = MONO_INST_VOLATILE;
729 tree->type = STACK_I4;
730 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
731 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
733 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
737 if (cfg->verbose_level > 2)
738 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
743 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
746 type = mini_get_underlying_type (type);
748 if (mono_type_is_long (type))
749 dreg = mono_alloc_dreg (cfg, STACK_I8);
750 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
751 dreg = mono_alloc_dreg (cfg, STACK_R8);
753 /* All the others are unified */
754 dreg = mono_alloc_preg (cfg);
756 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
760 mini_get_int_to_float_spill_area (MonoCompile *cfg)
763 if (!cfg->iconv_raw_var) {
764 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
765 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
767 return cfg->iconv_raw_var;
774 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
776 if (vreg >= cfg->vreg_is_ref_len) {
777 gboolean *tmp = cfg->vreg_is_ref;
778 int size = cfg->vreg_is_ref_len;
780 while (vreg >= cfg->vreg_is_ref_len)
781 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
782 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
784 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
786 cfg->vreg_is_ref [vreg] = TRUE;
790 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
792 if (vreg >= cfg->vreg_is_mp_len) {
793 gboolean *tmp = cfg->vreg_is_mp;
794 int size = cfg->vreg_is_mp_len;
796 while (vreg >= cfg->vreg_is_mp_len)
797 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
798 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
800 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
802 cfg->vreg_is_mp [vreg] = TRUE;
806 type_from_stack_type (MonoInst *ins)
809 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
810 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
811 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
812 case STACK_R8: return &mono_defaults.double_class->byval_arg;
815 * this if used to be commented without any specific reason, but
816 * it breaks #80235 when commented
819 return &ins->klass->this_arg;
821 return &mono_defaults.object_class->this_arg;
823 /* ins->klass may not be set for ldnull.
824 * Also, if we have a boxed valuetype, we want an object lass,
825 * not the valuetype class
827 if (ins->klass && !ins->klass->valuetype)
828 return &ins->klass->byval_arg;
829 return &mono_defaults.object_class->byval_arg;
830 case STACK_VTYPE: return &ins->klass->byval_arg;
832 g_error ("stack type %d to montype not handled\n", ins->type);
838 mono_type_from_stack_type (MonoInst *ins)
840 return type_from_stack_type (ins);
844 * mono_add_ins_to_end:
846 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
849 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
854 MONO_ADD_INS (bb, inst);
858 switch (bb->last_ins->opcode) {
872 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
875 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
876 /* Need to insert the ins before the compare */
877 if (bb->code == bb->last_ins) {
878 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
882 if (bb->code->next == bb->last_ins) {
883 /* Only two instructions */
884 opcode = bb->code->opcode;
886 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)) {
888 mono_bblock_insert_before_ins (bb, bb->code, inst);
890 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
893 opcode = bb->last_ins->prev->opcode;
895 if ((opcode == OP_COMPARE) || (opcode == OP_COMPARE_IMM) || (opcode == OP_ICOMPARE) || (opcode == OP_ICOMPARE_IMM) || (opcode == OP_FCOMPARE) || (opcode == OP_LCOMPARE) || (opcode == OP_LCOMPARE_IMM) || (opcode == OP_RCOMPARE)) {
897 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
899 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
904 MONO_ADD_INS (bb, inst);
910 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
912 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
913 MonoJumpInfoBBTable *table;
915 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
917 table->table_size = num_blocks;
919 ji->ip.label = label;
920 ji->type = MONO_PATCH_INFO_SWITCH;
921 ji->data.table = table;
922 ji->next = cfg->patch_info;
923 cfg->patch_info = ji;
926 static MonoMethodSignature *
927 mono_get_array_new_va_signature (int arity)
929 static GHashTable *sighash;
930 MonoMethodSignature *res;
935 sighash = g_hash_table_new (NULL, NULL);
937 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
942 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
945 if (ARCH_VARARG_ICALLS)
946 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
947 res->call_convention = MONO_CALL_VARARG;
950 res->call_convention = MONO_CALL_C;
953 res->params [0] = &mono_defaults.int_class->byval_arg;
954 for (i = 0; i < arity; i++)
955 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
957 res->ret = &mono_defaults.object_class->byval_arg;
959 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
966 mono_get_array_new_va_icall (int rank)
968 MonoMethodSignature *esig;
969 char icall_name [256];
971 MonoJitICallInfo *info;
973 /* Need to register the icall so it gets an icall wrapper */
974 sprintf (icall_name, "ves_array_new_va_%d", rank);
977 info = mono_find_jit_icall_by_name (icall_name);
979 esig = mono_get_array_new_va_signature (rank);
980 name = g_strdup (icall_name);
981 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
989 mini_class_is_system_array (MonoClass *klass)
991 if (klass->parent == mono_defaults.array_class)
998 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1000 MonoAssembly *assembly = method->klass->image->assembly;
1001 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1003 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1005 return mono_assembly_has_skip_verification (assembly);
1009 * mini_method_verify:
1011 * Verify the method using the verfier.
1013 * Returns true if the method is invalid.
1016 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1019 gboolean is_fulltrust;
1021 if (method->verification_success)
1024 if (!mono_verifier_is_enabled_for_method (method))
1027 /*skip verification implies the assembly must be */
1028 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1030 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1033 for (tmp = res; tmp; tmp = tmp->next) {
1034 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1035 if (info->info.status == MONO_VERIFY_ERROR) {
1037 char *method_name = mono_method_full_name (method, TRUE);
1038 cfg->exception_type = info->exception_type;
1039 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1040 g_free (method_name);
1042 mono_free_verify_list (res);
1045 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1047 char *method_name = mono_method_full_name (method, TRUE);
1048 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1050 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1051 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1052 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1053 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1054 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1055 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", msg);
1056 if (!mono_error_ok (&cfg->error)) {
1057 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1060 cfg->exception_type = info->exception_type;
1061 cfg->exception_message = msg;
1063 g_free (method_name);
1065 mono_free_verify_list (res);
1069 mono_free_verify_list (res);
1071 method->verification_success = 1;
1075 /*Returns true if something went wrong*/
1077 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1079 MonoMethod *method_definition = method;
1080 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1082 while (method_definition->is_inflated) {
1083 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1084 method_definition = imethod->declaring;
1087 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1091 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1093 if (!domain_jit_info (domain)->dynamic_code_hash)
1094 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1095 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1098 static MonoJitDynamicMethodInfo*
1099 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1101 MonoJitDynamicMethodInfo *res;
1103 if (domain_jit_info (domain)->dynamic_code_hash)
1104 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1112 GList *active, *inactive;
1117 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1119 MonoMethodVar *v1 = (MonoMethodVar*)a;
1120 MonoMethodVar *v2 = (MonoMethodVar*)b;
1124 else if (v1->interval->range && v2->interval->range)
1125 return v1->interval->range->from - v2->interval->range->from;
1126 else if (v1->interval->range)
1133 #define LSCAN_DEBUG(a) do { a; } while (0)
1135 #define LSCAN_DEBUG(a)
1139 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1141 int i, slot, offset, size;
1146 GList *vars = NULL, *l, *unhandled;
1147 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1150 gboolean reuse_slot;
1152 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1154 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1155 vtype_stack_slots = NULL;
1158 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1159 for (i = 0; i < cfg->num_varinfo; ++i)
1162 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1163 inst = cfg->varinfo [i];
1164 vmv = MONO_VARINFO (cfg, i);
1166 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1169 vars = g_list_prepend (vars, vmv);
1172 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1177 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1178 MonoMethodVar *current = unhandled->data;
1180 if (current->interval->range) {
1181 g_assert (current->interval->range->from >= i);
1182 i = current->interval->range->from;
1189 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1190 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1193 inst = cfg->varinfo [vmv->idx];
1195 t = mono_type_get_underlying_type (inst->inst_vtype);
1196 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1199 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1200 * pinvoke wrappers when they call functions returning structures */
1201 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1202 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1207 size = mini_type_stack_size (t, &ialign);
1210 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1215 if (cfg->disable_reuse_stack_slots)
1218 t = mini_get_underlying_type (t);
1220 case MONO_TYPE_GENERICINST:
1221 if (!mono_type_generic_inst_is_valuetype (t)) {
1222 slot_info = &scalar_stack_slots [t->type];
1226 case MONO_TYPE_VALUETYPE:
1227 if (!vtype_stack_slots)
1228 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1229 for (i = 0; i < nvtypes; ++i)
1230 if (t->data.klass == vtype_stack_slots [i].vtype)
1233 slot_info = &vtype_stack_slots [i];
1235 g_assert (nvtypes < 256);
1236 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1237 slot_info = &vtype_stack_slots [nvtypes];
1240 if (cfg->disable_reuse_ref_stack_slots)
1247 #if SIZEOF_VOID_P == 4
1252 if (cfg->disable_ref_noref_stack_slot_share) {
1253 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1258 case MONO_TYPE_CLASS:
1259 case MONO_TYPE_OBJECT:
1260 case MONO_TYPE_ARRAY:
1261 case MONO_TYPE_SZARRAY:
1262 case MONO_TYPE_STRING:
1263 /* Share non-float stack slots of the same size */
1264 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1265 if (cfg->disable_reuse_ref_stack_slots)
1270 slot_info = &scalar_stack_slots [t->type];
1274 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1278 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1280 if (!current->interval->range) {
1281 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1285 inst->flags |= MONO_INST_IS_DEAD;
1290 pos = current->interval->range->from;
1292 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1293 if (current->interval->range)
1294 LSCAN_DEBUG (mono_linterval_print (current->interval));
1295 LSCAN_DEBUG (printf ("\n"));
1297 /* Check for intervals in active which expired or inactive */
1299 /* FIXME: Optimize this */
1302 for (l = slot_info->active; l != NULL; l = l->next) {
1303 MonoMethodVar *v = (MonoMethodVar*)l->data;
1305 if (v->interval->last_range->to < pos) {
1306 slot_info->active = g_list_delete_link (slot_info->active, l);
1307 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1308 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1312 else if (!mono_linterval_covers (v->interval, pos)) {
1313 slot_info->inactive = g_list_append (slot_info->inactive, v);
1314 slot_info->active = g_list_delete_link (slot_info->active, l);
1315 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1322 /* Check for intervals in inactive which expired or active */
1324 /* FIXME: Optimize this */
1327 for (l = slot_info->inactive; l != NULL; l = l->next) {
1328 MonoMethodVar *v = (MonoMethodVar*)l->data;
1330 if (v->interval->last_range->to < pos) {
1331 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1332 // FIXME: Enabling this seems to cause impossible to debug crashes
1333 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1334 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1338 else if (mono_linterval_covers (v->interval, pos)) {
1339 slot_info->active = g_list_append (slot_info->active, v);
1340 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1341 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1349 * This also handles the case when the variable is used in an
1350 * exception region, as liveness info is not computed there.
1353 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1356 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1357 if (slot_info->slots) {
1358 slot = GPOINTER_TO_INT (slot_info->slots->data);
1360 slot_info->slots = slot_info->slots->next;
1363 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1365 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1371 static int count = 0;
1374 if (count == atoi (g_getenv ("COUNT3")))
1375 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1376 if (count > atoi (g_getenv ("COUNT3")))
1379 mono_print_ins (inst);
1384 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1386 if (inst->flags & MONO_INST_LMF) {
1387 size = sizeof (MonoLMF);
1388 align = sizeof (mgreg_t);
1395 if (slot == 0xffffff) {
1397 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1398 * efficient copying (and to work around the fact that OP_MEMCPY
1399 * and OP_MEMSET ignores alignment).
1401 if (MONO_TYPE_ISSTRUCT (t)) {
1402 align = MAX (align, sizeof (gpointer));
1403 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1408 offset += align - 1;
1409 offset &= ~(align - 1);
1413 offset += align - 1;
1414 offset &= ~(align - 1);
1419 if (*stack_align == 0)
1420 *stack_align = align;
1423 offsets [vmv->idx] = slot;
1426 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1427 if (scalar_stack_slots [i].active)
1428 g_list_free (scalar_stack_slots [i].active);
1430 for (i = 0; i < nvtypes; ++i) {
1431 if (vtype_stack_slots [i].active)
1432 g_list_free (vtype_stack_slots [i].active);
1435 cfg->stat_locals_stack_size += offset;
1437 *stack_size = offset;
1442 * mono_allocate_stack_slots:
1444 * Allocate stack slots for all non register allocated variables using a
1445 * linear scan algorithm.
1446 * Returns: an array of stack offsets.
1447 * STACK_SIZE is set to the amount of stack space needed.
1448 * STACK_ALIGN is set to the alignment needed by the locals area.
1451 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1453 int i, slot, offset, size;
1458 GList *vars = NULL, *l;
1459 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1462 gboolean reuse_slot;
1464 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1465 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1467 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1468 vtype_stack_slots = NULL;
1471 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1472 for (i = 0; i < cfg->num_varinfo; ++i)
1475 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1476 inst = cfg->varinfo [i];
1477 vmv = MONO_VARINFO (cfg, i);
1479 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1482 vars = g_list_prepend (vars, vmv);
1485 vars = mono_varlist_sort (cfg, vars, 0);
1487 *stack_align = sizeof(mgreg_t);
1488 for (l = vars; l; l = l->next) {
1489 vmv = (MonoMethodVar *)l->data;
1490 inst = cfg->varinfo [vmv->idx];
1492 t = mono_type_get_underlying_type (inst->inst_vtype);
1493 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1496 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1497 * pinvoke wrappers when they call functions returning structures */
1498 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1499 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1503 size = mini_type_stack_size (t, &ialign);
1506 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1507 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1509 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1514 if (cfg->disable_reuse_stack_slots)
1517 t = mini_get_underlying_type (t);
1519 case MONO_TYPE_GENERICINST:
1520 if (!mono_type_generic_inst_is_valuetype (t)) {
1521 slot_info = &scalar_stack_slots [t->type];
1525 case MONO_TYPE_VALUETYPE:
1526 if (!vtype_stack_slots)
1527 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1528 for (i = 0; i < nvtypes; ++i)
1529 if (t->data.klass == vtype_stack_slots [i].vtype)
1532 slot_info = &vtype_stack_slots [i];
1534 g_assert (nvtypes < 256);
1535 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1536 slot_info = &vtype_stack_slots [nvtypes];
1539 if (cfg->disable_reuse_ref_stack_slots)
1546 #if SIZEOF_VOID_P == 4
1551 if (cfg->disable_ref_noref_stack_slot_share) {
1552 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1557 case MONO_TYPE_CLASS:
1558 case MONO_TYPE_OBJECT:
1559 case MONO_TYPE_ARRAY:
1560 case MONO_TYPE_SZARRAY:
1561 case MONO_TYPE_STRING:
1562 /* Share non-float stack slots of the same size */
1563 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1564 if (cfg->disable_reuse_ref_stack_slots)
1568 case MONO_TYPE_MVAR:
1569 slot_info = &scalar_stack_slots [t->type];
1572 slot_info = &scalar_stack_slots [t->type];
1577 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1578 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1580 /* expire old intervals in active */
1581 while (slot_info->active) {
1582 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1584 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1587 //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);
1589 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1590 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1594 * This also handles the case when the variable is used in an
1595 * exception region, as liveness info is not computed there.
1598 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1601 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1602 if (slot_info->slots) {
1603 slot = GPOINTER_TO_INT (slot_info->slots->data);
1605 slot_info->slots = slot_info->slots->next;
1608 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1613 static int count = 0;
1617 if (count == atoi (g_getenv ("COUNT")))
1618 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1619 if (count > atoi (g_getenv ("COUNT")))
1622 mono_print_ins (inst);
1627 if (inst->flags & MONO_INST_LMF) {
1629 * This variable represents a MonoLMF structure, which has no corresponding
1630 * CLR type, so hard-code its size/alignment.
1632 size = sizeof (MonoLMF);
1633 align = sizeof (mgreg_t);
1640 if (slot == 0xffffff) {
1642 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1643 * efficient copying (and to work around the fact that OP_MEMCPY
1644 * and OP_MEMSET ignores alignment).
1646 if (MONO_TYPE_ISSTRUCT (t)) {
1647 align = MAX (align, sizeof (gpointer));
1648 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1650 * Align the size too so the code generated for passing vtypes in
1651 * registers doesn't overwrite random locals.
1653 size = (size + (align - 1)) & ~(align -1);
1658 offset += align - 1;
1659 offset &= ~(align - 1);
1663 offset += align - 1;
1664 offset &= ~(align - 1);
1669 *stack_align = MAX (*stack_align, align);
1672 offsets [vmv->idx] = slot;
1675 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1676 if (scalar_stack_slots [i].active)
1677 g_list_free (scalar_stack_slots [i].active);
1679 for (i = 0; i < nvtypes; ++i) {
1680 if (vtype_stack_slots [i].active)
1681 g_list_free (vtype_stack_slots [i].active);
1684 cfg->stat_locals_stack_size += offset;
1686 *stack_size = offset;
1690 #define EMUL_HIT_SHIFT 3
1691 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1692 /* small hit bitmap cache */
1693 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1694 static short emul_opcode_num = 0;
1695 static short emul_opcode_alloced = 0;
1696 static short *emul_opcode_opcodes;
1697 static MonoJitICallInfo **emul_opcode_map;
1700 mono_find_jit_opcode_emulation (int opcode)
1702 g_assert (opcode >= 0 && opcode <= OP_LAST);
1703 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1705 for (i = 0; i < emul_opcode_num; ++i) {
1706 if (emul_opcode_opcodes [i] == opcode)
1707 return emul_opcode_map [i];
1714 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1716 MonoJitICallInfo *info;
1717 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1719 g_assert (!sig->hasthis);
1720 g_assert (sig->param_count < 3);
1722 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1723 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1725 if (emul_opcode_num >= emul_opcode_alloced) {
1726 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1727 emul_opcode_alloced += incr;
1728 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1729 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1731 emul_opcode_map [emul_opcode_num] = info;
1732 emul_opcode_opcodes [emul_opcode_num] = opcode;
1734 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1738 print_dfn (MonoCompile *cfg)
1746 char *method_name = mono_method_full_name (cfg->method, TRUE);
1747 g_print ("IR code for method %s\n", method_name);
1748 g_free (method_name);
1751 for (i = 0; i < cfg->num_bblocks; ++i) {
1752 bb = cfg->bblocks [i];
1753 /*if (bb->cil_code) {
1754 char* code1, *code2;
1755 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1756 if (bb->last_ins->cil_code)
1757 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1759 code2 = g_strdup ("");
1761 code1 [strlen (code1) - 1] = 0;
1762 code = g_strdup_printf ("%s -> %s", code1, code2);
1766 code = g_strdup ("\n");
1767 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1768 MONO_BB_FOR_EACH_INS (bb, c) {
1769 mono_print_ins_index (-1, c);
1772 g_print ("\tprev:");
1773 for (j = 0; j < bb->in_count; ++j) {
1774 g_print (" BB%d", bb->in_bb [j]->block_num);
1776 g_print ("\t\tsucc:");
1777 for (j = 0; j < bb->out_count; ++j) {
1778 g_print (" BB%d", bb->out_bb [j]->block_num);
1780 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1783 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1786 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1788 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1796 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1798 MONO_ADD_INS (bb, inst);
1802 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1806 bb->code = ins_to_insert;
1808 /* Link with next */
1809 ins_to_insert->next = ins;
1811 ins->prev = ins_to_insert;
1813 if (bb->last_ins == NULL)
1814 bb->last_ins = ins_to_insert;
1816 /* Link with next */
1817 ins_to_insert->next = ins->next;
1819 ins->next->prev = ins_to_insert;
1821 /* Link with previous */
1822 ins->next = ins_to_insert;
1823 ins_to_insert->prev = ins;
1825 if (bb->last_ins == ins)
1826 bb->last_ins = ins_to_insert;
1831 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1836 ins->prev = ins_to_insert;
1837 bb->code = ins_to_insert;
1838 ins_to_insert->next = ins;
1839 if (bb->last_ins == NULL)
1840 bb->last_ins = ins_to_insert;
1842 /* Link with previous */
1844 ins->prev->next = ins_to_insert;
1845 ins_to_insert->prev = ins->prev;
1847 /* Link with next */
1848 ins->prev = ins_to_insert;
1849 ins_to_insert->next = ins;
1851 if (bb->code == ins)
1852 bb->code = ins_to_insert;
1857 * mono_verify_bblock:
1859 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1862 mono_verify_bblock (MonoBasicBlock *bb)
1864 MonoInst *ins, *prev;
1867 for (ins = bb->code; ins; ins = ins->next) {
1868 g_assert (ins->prev == prev);
1872 g_assert (!bb->last_ins->next);
1878 * Perform consistency checks on the JIT data structures and the IR
1881 mono_verify_cfg (MonoCompile *cfg)
1885 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
1886 mono_verify_bblock (bb);
1890 mono_destroy_compile (MonoCompile *cfg)
1895 mono_metadata_free_mh (cfg->header);
1896 //mono_mempool_stats (cfg->mempool);
1897 mono_free_loop_info (cfg);
1899 mono_regstate_free (cfg->rs);
1901 g_hash_table_destroy (cfg->spvars);
1903 g_hash_table_destroy (cfg->exvars);
1904 for (l = cfg->headers_to_free; l; l = l->next)
1905 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
1906 g_list_free (cfg->ldstr_list);
1907 g_hash_table_destroy (cfg->token_info_hash);
1908 if (cfg->abs_patches)
1909 g_hash_table_destroy (cfg->abs_patches);
1910 mono_mempool_destroy (cfg->mempool);
1912 mono_debug_free_method (cfg);
1914 g_free (cfg->varinfo);
1916 g_free (cfg->exception_message);
1921 mono_create_tls_get_offset (MonoCompile *cfg, int offset)
1925 if (!cfg->backend->have_tls_get)
1931 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
1932 ins->dreg = mono_alloc_preg (cfg);
1933 ins->inst_offset = offset;
1938 mini_tls_get_supported (MonoCompile *cfg, MonoTlsKey key)
1940 if (!cfg->backend->have_tls_get)
1943 if (cfg->compile_aot)
1944 return cfg->backend->have_tls_get_reg;
1946 return mini_get_tls_offset (key) != -1;
1950 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
1952 if (!cfg->backend->have_tls_get)
1956 * TLS offsets might be different at AOT time, so load them from a GOT slot and
1957 * use a different opcode.
1959 if (cfg->compile_aot) {
1960 if (cfg->backend->have_tls_get_reg) {
1963 EMIT_NEW_TLS_OFFSETCONST (cfg, c, key);
1964 MONO_INST_NEW (cfg, ins, OP_TLS_GET_REG);
1965 ins->dreg = mono_alloc_preg (cfg);
1966 ins->sreg1 = c->dreg;
1973 return mono_create_tls_get_offset (cfg, mini_get_tls_offset (key));
1977 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
1979 return mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
1983 mono_get_domain_intrinsic (MonoCompile* cfg)
1985 return mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
1989 mono_get_thread_intrinsic (MonoCompile* cfg)
1991 return mono_create_tls_get (cfg, TLS_KEY_THREAD);
1995 mono_get_lmf_intrinsic (MonoCompile* cfg)
1997 return mono_create_tls_get (cfg, TLS_KEY_LMF);
2001 mono_get_lmf_addr_intrinsic (MonoCompile* cfg)
2003 return mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
2007 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2009 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2013 ji->data.target = target;
2014 ji->next = cfg->patch_info;
2016 cfg->patch_info = ji;
2020 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
2022 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2026 ji->relocation = relocation;
2027 ji->data.target = target;
2028 ji->next = cfg->patch_info;
2030 cfg->patch_info = ji;
2034 mono_remove_patch_info (MonoCompile *cfg, int ip)
2036 MonoJumpInfo **ji = &cfg->patch_info;
2039 if ((*ji)->ip.i == ip)
2042 ji = &((*ji)->next);
2047 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2049 ins->inst_offset = native_offset;
2050 g_ptr_array_add (cfg->seq_points, ins);
2052 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2053 bb->last_seq_point = ins;
2058 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2060 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2063 g_assert (offset == 0);
2065 entry->is_reg = is_reg;
2067 entry->offset = offset;
2071 if (var == cfg->args [0])
2072 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2073 else if (var == cfg->rgctx_var)
2074 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2078 mono_compile_create_vars (MonoCompile *cfg)
2080 MonoMethodSignature *sig;
2081 MonoMethodHeader *header;
2084 header = cfg->header;
2086 sig = mono_method_signature (cfg->method);
2088 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2089 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2090 /* Inhibit optimizations */
2091 cfg->ret->flags |= MONO_INST_VOLATILE;
2093 if (cfg->verbose_level > 2)
2094 g_print ("creating vars\n");
2096 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2099 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2101 for (i = 0; i < sig->param_count; ++i) {
2102 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2105 if (cfg->verbose_level > 2) {
2107 printf ("\treturn : ");
2108 mono_print_ins (cfg->ret);
2112 printf ("\tthis: ");
2113 mono_print_ins (cfg->args [0]);
2116 for (i = 0; i < sig->param_count; ++i) {
2117 printf ("\targ [%d]: ", i);
2118 mono_print_ins (cfg->args [i + sig->hasthis]);
2122 cfg->locals_start = cfg->num_varinfo;
2123 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2125 if (cfg->verbose_level > 2)
2126 g_print ("creating locals\n");
2128 for (i = 0; i < header->num_locals; ++i)
2129 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2131 if (cfg->verbose_level > 2)
2132 g_print ("locals done\n");
2135 if (COMPILE_LLVM (cfg))
2136 mono_llvm_create_vars (cfg);
2138 mono_arch_create_vars (cfg);
2140 mono_arch_create_vars (cfg);
2143 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2144 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2145 lmf_var->flags |= MONO_INST_VOLATILE;
2146 lmf_var->flags |= MONO_INST_LMF;
2147 cfg->lmf_var = lmf_var;
2152 mono_print_code (MonoCompile *cfg, const char* msg)
2156 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2157 mono_print_bb (bb, msg);
2161 mono_postprocess_patches (MonoCompile *cfg)
2163 MonoJumpInfo *patch_info;
2166 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2167 switch (patch_info->type) {
2168 case MONO_PATCH_INFO_ABS: {
2169 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2172 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2176 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2177 /* for these array methods we currently register the same function pointer
2178 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2179 * will return the incorrect one depending on the order they are registered.
2180 * See tests/test-arr.cs
2182 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2183 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2184 patch_info->data.name = info->name;
2188 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2189 if (cfg->abs_patches) {
2190 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2192 patch_info->type = abs_ji->type;
2193 patch_info->data.target = abs_ji->data.target;
2200 case MONO_PATCH_INFO_SWITCH: {
2202 #if defined(__native_client__) && defined(__native_client_codegen__)
2203 /* This memory will leak. */
2204 /* TODO: can we free this when */
2205 /* making the final jump table? */
2206 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2208 if (cfg->method->dynamic) {
2209 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2211 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2215 for (i = 0; i < patch_info->data.table->table_size; i++) {
2216 /* Might be NULL if the switch is eliminated */
2217 if (patch_info->data.table->table [i]) {
2218 g_assert (patch_info->data.table->table [i]->native_offset);
2219 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2224 patch_info->data.table->table = (MonoBasicBlock**)table;
2227 case MONO_PATCH_INFO_METHOD_JUMP: {
2228 MonoJumpList *jlist;
2229 MonoDomain *domain = cfg->domain;
2230 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2232 mono_domain_lock (domain);
2233 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2235 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2236 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2238 jlist->list = g_slist_prepend (jlist->list, ip);
2239 mono_domain_unlock (domain);
2250 mono_codegen (MonoCompile *cfg)
2253 int max_epilog_size;
2255 MonoDomain *code_domain;
2256 guint unwindlen = 0;
2258 if (mono_using_xdebug)
2260 * Recent gdb versions have trouble processing symbol files containing
2261 * overlapping address ranges, so allocate all code from the code manager
2262 * of the root domain. (#666152).
2264 code_domain = mono_get_root_domain ();
2266 code_domain = cfg->domain;
2268 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2269 cfg->spill_count = 0;
2270 /* we reuse dfn here */
2271 /* bb->dfn = bb_count++; */
2273 mono_arch_lowering_pass (cfg, bb);
2275 if (cfg->opt & MONO_OPT_PEEPHOLE)
2276 mono_arch_peephole_pass_1 (cfg, bb);
2278 mono_local_regalloc (cfg, bb);
2280 if (cfg->opt & MONO_OPT_PEEPHOLE)
2281 mono_arch_peephole_pass_2 (cfg, bb);
2283 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2284 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2287 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2288 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2290 code = mono_arch_emit_prolog (cfg);
2292 cfg->code_len = code - cfg->native_code;
2293 cfg->prolog_end = cfg->code_len;
2294 cfg->cfa_reg = cfg->cur_cfa_reg;
2295 cfg->cfa_offset = cfg->cur_cfa_offset;
2297 mono_debug_open_method (cfg);
2299 /* emit code all basic blocks */
2300 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2301 bb->native_offset = cfg->code_len;
2302 bb->real_native_offset = cfg->code_len;
2303 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2304 mono_arch_output_basic_block (cfg, bb);
2305 bb->native_length = cfg->code_len - bb->native_offset;
2307 if (bb == cfg->bb_exit) {
2308 cfg->epilog_begin = cfg->code_len;
2309 mono_arch_emit_epilog (cfg);
2310 cfg->epilog_end = cfg->code_len;
2314 mono_arch_emit_exceptions (cfg);
2316 max_epilog_size = 0;
2318 /* we always allocate code in cfg->domain->code_mp to increase locality */
2319 cfg->code_size = cfg->code_len + max_epilog_size;
2321 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2323 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2324 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2327 if (cfg->method->dynamic) {
2328 /* Allocate the code into a separate memory pool so it can be freed */
2329 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2330 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2331 mono_domain_lock (cfg->domain);
2332 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2333 mono_domain_unlock (cfg->domain);
2335 if (mono_using_xdebug)
2336 /* See the comment for cfg->code_domain */
2337 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2339 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2341 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2344 if (cfg->thunk_area) {
2345 cfg->thunks_offset = cfg->code_size + unwindlen;
2346 cfg->thunks = code + cfg->thunks_offset;
2347 memset (cfg->thunks, 0, cfg->thunk_area);
2351 memcpy (code, cfg->native_code, cfg->code_len);
2352 g_free (cfg->native_code);
2353 cfg->native_code = code;
2354 code = cfg->native_code + cfg->code_len;
2356 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2357 mono_postprocess_patches (cfg);
2359 #ifdef VALGRIND_JIT_REGISTER_MAP
2360 if (valgrind_register){
2361 char* nm = mono_method_full_name (cfg->method, TRUE);
2362 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2367 if (cfg->verbose_level > 0) {
2368 char* nm = mono_method_get_full_name (cfg->method);
2369 char *opt_descr = mono_opt_descr (cfg->opt);
2370 g_print ("Method %s emitted at %p to %p (code length %d) [%s] with opts %s\n",
2372 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name,
2379 gboolean is_generic = FALSE;
2381 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2382 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
2387 g_assert (is_generic);
2390 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2391 mono_arch_save_unwind_info (cfg);
2394 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2399 for (ji = cfg->patch_info; ji; ji = ji->next) {
2400 if (cfg->compile_aot) {
2402 case MONO_PATCH_INFO_BB:
2403 case MONO_PATCH_INFO_LABEL:
2406 /* No need to patch these */
2411 if (ji->type == MONO_PATCH_INFO_NONE)
2414 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2415 if (!mono_error_ok (&cfg->error)) {
2416 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2419 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2423 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors, &cfg->error);
2424 if (!is_ok (&cfg->error)) {
2425 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2430 if (cfg->method->dynamic) {
2431 if (mono_using_xdebug)
2432 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2434 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2436 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2438 #if defined(__native_client_codegen__) && defined(__native_client__)
2439 cfg->native_code = code_dest;
2441 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2443 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2445 mono_debug_close_method (cfg);
2447 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2448 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2453 compute_reachable (MonoBasicBlock *bb)
2457 if (!(bb->flags & BB_VISITED)) {
2458 bb->flags |= BB_VISITED;
2459 for (i = 0; i < bb->out_count; ++i)
2460 compute_reachable (bb->out_bb [i]);
2464 static void mono_bb_ordering (MonoCompile *cfg)
2467 /* Depth-first ordering on basic blocks */
2468 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2470 cfg->max_block_num = cfg->num_bblocks;
2472 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2473 if (cfg->num_bblocks != dfn + 1) {
2476 cfg->num_bblocks = dfn + 1;
2478 /* remove unreachable code, because the code in them may be
2479 * inconsistent (access to dead variables for example) */
2480 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2481 bb->flags &= ~BB_VISITED;
2482 compute_reachable (cfg->bb_entry);
2483 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2484 if (bb->flags & BB_EXCEPTION_HANDLER)
2485 compute_reachable (bb);
2486 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2487 if (!(bb->flags & BB_VISITED)) {
2488 if (cfg->verbose_level > 1)
2489 g_print ("found unreachable code in BB%d\n", bb->block_num);
2490 bb->code = bb->last_ins = NULL;
2491 while (bb->out_count)
2492 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2495 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2496 bb->flags &= ~BB_VISITED;
2501 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2504 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2505 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2507 MONO_INST_NEW (cfg, ins, OP_BR);
2508 MONO_ADD_INS (bb, ins);
2509 ins->inst_target_bb = bb->next_bb;
2515 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2518 MonoMethodHeader *header;
2520 MonoJitInfoFlags flags = JIT_INFO_NONE;
2521 int num_clauses, num_holes = 0;
2522 guint32 stack_size = 0;
2524 g_assert (method_to_compile == cfg->method);
2525 header = cfg->header;
2528 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2530 if (cfg->arch_eh_jit_info) {
2531 MonoJitArgumentInfo *arg_info;
2532 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2535 * This cannot be computed during stack walking, as
2536 * mono_arch_get_argument_info () is not signal safe.
2538 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2539 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2542 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2545 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2546 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2548 if (cfg->thunk_area)
2549 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2551 if (cfg->try_block_holes) {
2552 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2553 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2554 MonoExceptionClause *ec = hole->clause;
2555 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2556 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2557 g_assert (clause_last_bb);
2559 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2560 if (clause_last_bb->native_offset != hole_end)
2564 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2565 if (G_UNLIKELY (cfg->verbose_level >= 4))
2566 printf ("Number of try block holes %d\n", num_holes);
2569 if (COMPILE_LLVM (cfg))
2570 num_clauses = cfg->llvm_ex_info_len;
2572 num_clauses = header->num_clauses;
2574 if (cfg->method->dynamic)
2575 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2577 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2578 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2579 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2581 if (COMPILE_LLVM (cfg))
2582 jinfo->from_llvm = TRUE;
2586 MonoGenericJitInfo *gi;
2587 GSList *loclist = NULL;
2589 gi = mono_jit_info_get_generic_jit_info (jinfo);
2592 if (cfg->method->dynamic)
2593 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2595 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2596 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2598 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2599 mini_method_get_context (method_to_compile)->method_inst ||
2600 method_to_compile->klass->valuetype) {
2601 g_assert (cfg->rgctx_var);
2606 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2607 mini_method_get_context (method_to_compile)->method_inst ||
2608 method_to_compile->klass->valuetype) {
2609 inst = cfg->rgctx_var;
2610 if (!COMPILE_LLVM (cfg))
2611 g_assert (inst->opcode == OP_REGOFFSET);
2612 loclist = cfg->rgctx_loclist;
2614 inst = cfg->args [0];
2615 loclist = cfg->this_loclist;
2619 /* Needed to handle async exceptions */
2623 gi->nlocs = g_slist_length (loclist);
2624 if (cfg->method->dynamic)
2625 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2627 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2629 for (l = loclist; l; l = l->next) {
2630 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2635 if (COMPILE_LLVM (cfg)) {
2636 g_assert (cfg->llvm_this_reg != -1);
2637 gi->this_in_reg = 0;
2638 gi->this_reg = cfg->llvm_this_reg;
2639 gi->this_offset = cfg->llvm_this_offset;
2640 } else if (inst->opcode == OP_REGVAR) {
2641 gi->this_in_reg = 1;
2642 gi->this_reg = inst->dreg;
2644 g_assert (inst->opcode == OP_REGOFFSET);
2646 g_assert (inst->inst_basereg == X86_EBP);
2647 #elif defined(TARGET_AMD64)
2648 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2650 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2652 gi->this_in_reg = 0;
2653 gi->this_reg = inst->inst_basereg;
2654 gi->this_offset = inst->inst_offset;
2659 MonoTryBlockHoleTableJitInfo *table;
2662 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2663 table->num_holes = (guint16)num_holes;
2665 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2666 guint32 start_bb_offset;
2667 MonoTryBlockHoleJitInfo *hole;
2668 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2669 MonoExceptionClause *ec = hole_data->clause;
2670 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2671 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2672 g_assert (clause_last_bb);
2674 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2675 if (clause_last_bb->native_offset == hole_end)
2678 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2679 hole = &table->holes [i++];
2680 hole->clause = hole_data->clause - &header->clauses [0];
2681 hole->offset = (guint32)hole_data->start_offset;
2682 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2684 if (G_UNLIKELY (cfg->verbose_level >= 4))
2685 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2687 g_assert (i == num_holes);
2690 if (jinfo->has_arch_eh_info) {
2691 MonoArchEHJitInfo *info;
2693 info = mono_jit_info_get_arch_eh_info (jinfo);
2695 info->stack_size = stack_size;
2698 if (cfg->thunk_area) {
2699 MonoThunkJitInfo *info;
2701 info = mono_jit_info_get_thunk_info (jinfo);
2702 info->thunks_offset = cfg->thunks_offset;
2703 info->thunks_size = cfg->thunk_area;
2706 if (COMPILE_LLVM (cfg)) {
2708 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2709 } else if (header->num_clauses) {
2712 for (i = 0; i < header->num_clauses; i++) {
2713 MonoExceptionClause *ec = &header->clauses [i];
2714 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2715 MonoBasicBlock *tblock;
2716 MonoInst *exvar, *spvar;
2718 ei->flags = ec->flags;
2720 if (G_UNLIKELY (cfg->verbose_level >= 4))
2721 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);
2724 * The spvars are needed by mono_arch_install_handler_block_guard ().
2726 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2729 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2730 spvar = mono_find_spvar_for_region (cfg, region);
2732 ei->exvar_offset = spvar->inst_offset;
2734 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2735 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2738 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2739 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2741 ei->data.filter = cfg->native_code + tblock->native_offset;
2743 ei->data.catch_class = ec->data.catch_class;
2746 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2748 g_assert (tblock->native_offset);
2749 ei->try_start = cfg->native_code + tblock->native_offset;
2750 if (tblock->extend_try_block) {
2752 * Extend the try block backwards to include parts of the previous call
2755 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
2757 if (ec->try_offset + ec->try_len < header->code_size)
2758 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2760 tblock = cfg->bb_exit;
2761 if (G_UNLIKELY (cfg->verbose_level >= 4))
2762 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
2764 if (!tblock->native_offset) {
2766 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2767 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2768 if (bb && bb->native_offset) {
2774 ei->try_end = cfg->native_code + tblock->native_offset;
2775 g_assert (tblock->native_offset);
2776 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2778 ei->handler_start = cfg->native_code + tblock->native_offset;
2780 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2781 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2782 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2783 if (hole->clause == ec && hole_end == ei->try_end) {
2784 if (G_UNLIKELY (cfg->verbose_level >= 4))
2785 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2787 ei->try_end = cfg->native_code + hole->start_offset;
2792 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2794 if (ec->handler_offset + ec->handler_len < header->code_size) {
2795 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2796 if (tblock->native_offset) {
2797 end_offset = tblock->native_offset;
2801 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2802 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2803 if (bb && bb->native_offset) {
2808 end_offset = tblock->native_offset + tblock->native_length;
2811 end_offset = cfg->epilog_begin;
2813 ei->data.handler_end = cfg->native_code + end_offset;
2818 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2820 for (i = 0; i < jinfo->num_clauses; i++) {
2821 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2822 int start = (guint8*)ei->try_start - cfg->native_code;
2823 int end = (guint8*)ei->try_end - cfg->native_code;
2824 int handler = (guint8*)ei->handler_start - cfg->native_code;
2825 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2827 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2831 if (cfg->encoded_unwind_ops) {
2832 /* Generated by LLVM */
2833 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2834 g_free (cfg->encoded_unwind_ops);
2835 } else if (cfg->unwind_ops) {
2837 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2838 guint32 unwind_desc;
2840 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2842 if (cfg->has_unwind_info_for_epilog) {
2843 MonoArchEHJitInfo *info;
2845 info = mono_jit_info_get_arch_eh_info (jinfo);
2847 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2849 jinfo->unwind_info = unwind_desc;
2850 g_free (unwind_info);
2852 jinfo->unwind_info = cfg->used_int_regs;
2858 /* Return whenever METHOD is a gsharedvt method */
2860 is_gsharedvt_method (MonoMethod *method)
2862 MonoGenericContext *context;
2863 MonoGenericInst *inst;
2866 if (!method->is_inflated)
2868 context = mono_method_get_context (method);
2869 inst = context->class_inst;
2871 for (i = 0; i < inst->type_argc; ++i)
2872 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2875 inst = context->method_inst;
2877 for (i = 0; i < inst->type_argc; ++i)
2878 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
2885 is_open_method (MonoMethod *method)
2887 MonoGenericContext *context;
2889 if (!method->is_inflated)
2891 context = mono_method_get_context (method);
2892 if (context->class_inst && context->class_inst->is_open)
2894 if (context->method_inst && context->method_inst->is_open)
2899 static void mono_insert_nop_in_empty_bb (MonoCompile *cfg)
2902 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2906 MONO_INST_NEW (cfg, nop, OP_NOP);
2907 MONO_ADD_INS (bb, nop);
2911 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
2913 MonoInst *poll_addr, *ins;
2915 if (cfg->disable_gc_safe_points)
2918 if (cfg->verbose_level > 1)
2919 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
2921 #if defined(__native_client_codegen__)
2922 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
2924 g_assert (mono_threads_is_coop_enabled ());
2925 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
2928 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
2929 ins->sreg1 = poll_addr->dreg;
2931 if (bblock->flags & BB_EXCEPTION_HANDLER) {
2932 MonoInst *eh_op = bblock->code;
2934 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
2937 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
2938 // skip all EH relateds ops
2939 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
2941 next_eh_op = eh_op->next;
2945 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
2946 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2947 } else if (bblock == cfg->bb_entry) {
2948 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
2949 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2952 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
2953 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
2958 This code inserts safepoints into managed code at important code paths.
2961 -the first basic block
2962 -landing BB for exception handlers
2967 mono_insert_safepoints (MonoCompile *cfg)
2971 #if !defined(__native_client_codegen__)
2972 if (!mono_threads_is_coop_enabled ())
2976 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2977 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2978 #if defined(__native_client__) || defined(__native_client_codegen__)
2979 gpointer poll_func = &mono_nacl_gc;
2981 g_assert (mono_threads_is_coop_enabled ());
2982 gpointer poll_func = &mono_threads_state_poll;
2985 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
2986 if (cfg->verbose_level > 1)
2987 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
2992 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
2993 if (cfg->verbose_level > 1)
2994 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
2998 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2999 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3001 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
3002 (info->d.icall.func == mono_thread_interruption_checkpoint ||
3003 info->d.icall.func == mono_threads_exit_gc_safe_region_unbalanced)) {
3004 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
3005 if (cfg->verbose_level > 1)
3006 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
3011 if (cfg->verbose_level > 1)
3012 printf ("INSERTING SAFEPOINTS\n");
3013 if (cfg->verbose_level > 2)
3014 mono_print_code (cfg, "BEFORE SAFEPOINTS");
3016 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3017 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
3018 mono_create_gc_safepoint (cfg, bb);
3021 if (cfg->verbose_level > 2)
3022 mono_print_code (cfg, "AFTER SAFEPOINTS");
3028 mono_insert_branches_between_bblocks (MonoCompile *cfg)
3032 /* Add branches between non-consecutive bblocks */
3033 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3034 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3035 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3036 /* we are careful when inverting, since bugs like #59580
3037 * could show up when dealing with NaNs.
3039 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3040 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3041 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3042 bb->last_ins->inst_false_bb = tmp;
3044 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3046 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3047 inst->opcode = OP_BR;
3048 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3049 mono_bblock_add_inst (bb, inst);
3054 if (cfg->verbose_level >= 4) {
3055 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3056 MonoInst *tree = bb->code;
3057 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3060 for (; tree; tree = tree->next) {
3061 mono_print_ins_index (-1, tree);
3067 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3068 bb->max_vreg = cfg->next_vreg;
3073 init_backend (MonoBackend *backend)
3075 #ifdef MONO_ARCH_NEED_GOT_VAR
3076 backend->need_got_var = 1;
3078 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
3079 backend->have_card_table_wb = 1;
3081 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3082 backend->have_op_generic_class_init = 1;
3084 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3085 backend->emulate_mul_div = 1;
3087 #ifdef MONO_ARCH_EMULATE_DIV
3088 backend->emulate_div = 1;
3090 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3091 backend->emulate_long_shift_opts = 1;
3093 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3094 backend->have_objc_get_selector = 1;
3096 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK
3097 backend->have_generalized_imt_thunk = 1;
3099 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3100 backend->gshared_supported = 1;
3102 if (MONO_ARCH_HAVE_TLS_GET)
3103 backend->have_tls_get = 1;
3104 #ifdef MONO_ARCH_HAVE_TLS_GET_REG
3105 backend->have_tls_get_reg = 1;
3107 if (MONO_ARCH_USE_FPSTACK)
3108 backend->use_fpstack = 1;
3109 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3110 backend->have_liverange_ops = 1;
3112 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3113 backend->have_op_tail_call = 1;
3115 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3116 backend->monitor_enter_adjustment = 1;
3118 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3120 #if defined(__mono_ilp32__)
3123 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3124 backend->have_dummy_init = 1;
3126 #ifdef MONO_ARCH_NEED_DIV_CHECK
3127 backend->need_div_check = 1;
3129 #ifdef NO_UNALIGNED_ACCESS
3130 backend->no_unaligned_access = 1;
3132 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3133 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3138 * mini_method_compile:
3139 * @method: the method to compile
3140 * @opts: the optimization flags to use
3141 * @domain: the domain where the method will be compiled in
3142 * @flags: compilation flags
3143 * @parts: debug flag
3145 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3146 * field in the returned struct to see if compilation succeded.
3149 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3151 MonoMethodHeader *header;
3152 MonoMethodSignature *sig;
3155 int i, code_size_ratio;
3156 gboolean try_generic_shared, try_llvm = FALSE;
3157 MonoMethod *method_to_compile, *method_to_register;
3158 gboolean method_is_gshared = FALSE;
3159 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3160 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3161 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3162 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3163 gboolean gsharedvt_method = FALSE;
3165 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3167 static gboolean verbose_method_inited;
3168 static const char *verbose_method_name;
3170 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3171 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3172 mono_profiler_method_jit (method);
3173 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3174 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3176 gsharedvt_method = is_gsharedvt_method (method);
3179 * In AOT mode, method can be the following:
3180 * - a gsharedvt method.
3181 * - a method inflated with type parameters. This is for ref/partial sharing.
3182 * - a method inflated with concrete types.
3185 if (is_open_method (method)) {
3186 try_generic_shared = TRUE;
3187 method_is_gshared = TRUE;
3189 try_generic_shared = FALSE;
3191 g_assert (opts & MONO_OPT_GSHARED);
3193 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3194 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3195 if (mini_is_gsharedvt_sharable_method (method)) {
3197 if (!mono_debug_count ())
3198 try_generic_shared = FALSE;
3204 if (try_generic_shared && !mono_debug_count ())
3205 try_generic_shared = FALSE;
3208 if (opts & MONO_OPT_GSHARED) {
3209 if (try_generic_shared)
3210 mono_stats.generics_sharable_methods++;
3211 else if (mono_method_is_generic_impl (method))
3212 mono_stats.generics_unsharable_methods++;
3216 try_llvm = mono_use_llvm || llvm;
3220 if (method_is_gshared) {
3221 method_to_compile = method;
3223 if (try_generic_shared) {
3224 method_to_compile = mini_get_shared_method (method);
3225 g_assert (method_to_compile);
3227 method_to_compile = method;
3231 cfg = g_new0 (MonoCompile, 1);
3232 cfg->method = method_to_compile;
3233 cfg->mempool = mono_mempool_new ();
3235 cfg->prof_options = mono_profiler_get_events ();
3236 cfg->run_cctors = run_cctors;
3237 cfg->domain = domain;
3238 cfg->verbose_level = mini_verbose;
3239 cfg->compile_aot = compile_aot;
3240 cfg->full_aot = full_aot;
3241 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3242 cfg->skip_visibility = method->skip_visibility;
3243 cfg->orig_method = method;
3244 cfg->gen_seq_points = debug_options.gen_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3245 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3246 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3247 cfg->backend = current_backend;
3249 #ifdef PLATFORM_ANDROID
3250 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3251 /* FIXME: Why is this needed */
3252 cfg->gen_seq_points = FALSE;
3253 cfg->gen_sdb_seq_points = FALSE;
3256 /* coop / nacl requires loop detection to happen */
3257 #if defined(__native_client_codegen__)
3258 cfg->opt |= MONO_OPT_LOOP;
3260 if (mono_threads_is_coop_enabled ())
3261 cfg->opt |= MONO_OPT_LOOP;
3263 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3264 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3265 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3266 cfg->disable_direct_icalls = disable_direct_icalls;
3267 if (try_generic_shared)
3268 cfg->gshared = TRUE;
3269 cfg->compile_llvm = try_llvm;
3270 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3271 if (cfg->compile_aot)
3272 cfg->method_index = aot_method_index;
3275 if (!mono_debug_count ())
3276 cfg->opt &= ~MONO_OPT_FLOAT32;
3279 cfg->opt &= ~MONO_OPT_SIMD;
3280 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3281 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3283 if (cfg->gen_seq_points)
3284 cfg->seq_points = g_ptr_array_new ();
3285 mono_error_init (&cfg->error);
3287 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container || method_is_gshared)) {
3288 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3292 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3293 MonoMethodInflated *inflated;
3294 MonoGenericContext *context;
3296 if (gsharedvt_method) {
3297 g_assert (method->is_inflated);
3298 inflated = (MonoMethodInflated*)method;
3299 context = &inflated->context;
3301 /* We are compiling a gsharedvt method directly */
3302 g_assert (compile_aot);
3304 g_assert (method_to_compile->is_inflated);
3305 inflated = (MonoMethodInflated*)method_to_compile;
3306 context = &inflated->context;
3309 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3310 cfg->gsctx_context = context;
3312 cfg->gsharedvt = TRUE;
3313 if (!cfg->llvm_only) {
3314 cfg->disable_llvm = TRUE;
3315 cfg->exception_message = g_strdup ("gsharedvt");
3320 method_to_register = method_to_compile;
3322 g_assert (method == method_to_compile);
3323 method_to_register = method;
3325 cfg->method_to_register = method_to_register;
3327 mono_error_init (&err);
3328 sig = mono_method_signature_checked (cfg->method, &err);
3330 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3331 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3332 mono_error_cleanup (&err);
3333 if (MONO_METHOD_COMPILE_END_ENABLED ())
3334 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3338 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3340 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3341 if (MONO_METHOD_COMPILE_END_ENABLED ())
3342 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3348 static gboolean inited;
3354 * Check for methods which cannot be compiled by LLVM early, to avoid
3355 * the extra compilation pass.
3357 if (COMPILE_LLVM (cfg)) {
3358 mono_llvm_check_method_supported (cfg);
3359 if (cfg->disable_llvm) {
3360 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3361 //nm = mono_method_full_name (cfg->method, TRUE);
3362 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3365 if (cfg->llvm_only) {
3366 cfg->disable_aot = TRUE;
3369 mono_destroy_compile (cfg);
3371 goto restart_compile;
3377 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3378 if (debug_options.mdb_optimizations) {
3379 cfg->disable_reuse_registers = TRUE;
3380 cfg->disable_reuse_stack_slots = TRUE;
3382 * This decreases the change the debugger will read registers/stack slots which are
3383 * not yet initialized.
3385 cfg->disable_initlocals_opt = TRUE;
3387 cfg->extend_live_ranges = TRUE;
3389 /* The debugger needs all locals to be on the stack or in a global register */
3390 cfg->disable_vreg_to_lvreg = TRUE;
3392 /* Don't remove unused variables when running inside the debugger since the user
3393 * may still want to view them. */
3394 cfg->disable_deadce_vars = TRUE;
3396 cfg->opt &= ~MONO_OPT_DEADCE;
3397 cfg->opt &= ~MONO_OPT_INLINE;
3398 cfg->opt &= ~MONO_OPT_COPYPROP;
3399 cfg->opt &= ~MONO_OPT_CONSPROP;
3401 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3402 cfg->disable_out_of_line_bblocks = TRUE;
3405 if (mono_using_xdebug) {
3407 * Make each variable use its own register/stack slot and extend
3408 * their liveness to cover the whole method, making them displayable
3409 * in gdb even after they are dead.
3411 cfg->disable_reuse_registers = TRUE;
3412 cfg->disable_reuse_stack_slots = TRUE;
3413 cfg->extend_live_ranges = TRUE;
3414 cfg->compute_precise_live_ranges = TRUE;
3417 mini_gc_init_cfg (cfg);
3419 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
3420 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3422 /* These wrappers are using linkonce linkage, so they can't access GOT slots */
3423 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) {
3424 cfg->disable_gc_safe_points = TRUE;
3425 /* This is safe, these wrappers only store to the stack */
3426 cfg->gen_write_barriers = FALSE;
3430 if (COMPILE_LLVM (cfg)) {
3431 cfg->opt |= MONO_OPT_ABCREM;
3434 if (!verbose_method_inited) {
3435 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3436 verbose_method_inited = TRUE;
3438 if (verbose_method_name) {
3439 const char *name = verbose_method_name;
3441 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3442 MonoMethodDesc *desc;
3444 desc = mono_method_desc_new (name, TRUE);
3445 if (mono_method_desc_full_match (desc, cfg->method)) {
3446 cfg->verbose_level = 4;
3448 mono_method_desc_free (desc);
3450 if (strcmp (cfg->method->name, name) == 0)
3451 cfg->verbose_level = 4;
3455 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3457 if (cfg->verbose_level > 0) {
3460 method_name = mono_method_get_full_name (method);
3461 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3463 if (COMPILE_LLVM (cfg))
3464 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3465 else if (cfg->gsharedvt)
3466 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3467 else if (cfg->gshared)
3468 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3470 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3472 g_free (method_name);
3475 if (cfg->opt & MONO_OPT_ABCREM)
3476 cfg->opt |= MONO_OPT_SSA;
3478 cfg->rs = mono_regstate_new ();
3479 cfg->next_vreg = cfg->rs->next_vreg;
3481 /* FIXME: Fix SSA to handle branches inside bblocks */
3482 if (cfg->opt & MONO_OPT_SSA)
3483 cfg->enable_extended_bblocks = FALSE;
3486 * FIXME: This confuses liveness analysis because variables which are assigned after
3487 * a branch inside a bblock become part of the kill set, even though the assignment
3488 * might not get executed. This causes the optimize_initlocals pass to delete some
3489 * assignments which are needed.
3490 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3493 //cfg->enable_extended_bblocks = TRUE;
3495 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3496 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3497 if (mini_get_debug_options ()->break_on_unverified)
3503 * create MonoInst* which represents arguments and local variables
3505 mono_compile_create_vars (cfg);
3507 mono_cfg_dump_create_context (cfg);
3508 mono_cfg_dump_begin_group (cfg);
3510 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));
3511 mono_cfg_dump_ir (cfg, "method-to-ir");
3513 if (cfg->gdump_ctx != NULL) {
3514 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3515 mono_insert_nop_in_empty_bb (cfg);
3516 mono_cfg_dump_ir (cfg, "mono_insert_nop_in_empty_bb");
3520 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3522 if (MONO_METHOD_COMPILE_END_ENABLED ())
3523 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3526 mono_destroy_compile (cfg);
3527 try_generic_shared = FALSE;
3528 goto restart_compile;
3530 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3532 if (MONO_METHOD_COMPILE_END_ENABLED ())
3533 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3534 /* cfg contains the details of the failure, so let the caller cleanup */
3538 cfg->stat_basic_blocks += cfg->num_bblocks;
3540 if (COMPILE_LLVM (cfg)) {
3543 /* The IR has to be in SSA form for LLVM */
3544 cfg->opt |= MONO_OPT_SSA;
3548 // Allow SSA on the result value
3549 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3551 // Add an explicit return instruction referencing the return value
3552 MONO_INST_NEW (cfg, ins, OP_SETRET);
3553 ins->sreg1 = cfg->ret->dreg;
3555 MONO_ADD_INS (cfg->bb_exit, ins);
3558 cfg->opt &= ~MONO_OPT_LINEARS;
3561 cfg->opt &= ~MONO_OPT_BRANCH;
3564 /* todo: remove code when we have verified that the liveness for try/catch blocks
3568 * Currently, this can't be commented out since exception blocks are not
3569 * processed during liveness analysis.
3570 * It is also needed, because otherwise the local optimization passes would
3571 * delete assignments in cases like this:
3573 * <something which throws>
3575 * This also allows SSA to be run on methods containing exception clauses, since
3576 * SSA will ignore variables marked VOLATILE.
3578 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3579 mono_cfg_dump_ir (cfg, "liveness_handle_exception_clauses");
3581 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3582 mono_cfg_dump_ir (cfg, "handle_out_of_line_bblock");
3584 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3586 if (!COMPILE_LLVM (cfg)) {
3587 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3588 mono_cfg_dump_ir (cfg, "decompose_long_opts");
3591 /* Should be done before branch opts */
3592 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP)) {
3593 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3594 mono_cfg_dump_ir (cfg, "local_cprop");
3597 if (cfg->flags & MONO_CFG_HAS_TYPE_CHECK) {
3598 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_typechecks, mono_decompose_typechecks (cfg));
3599 if (cfg->gdump_ctx != NULL) {
3600 /* workaround for graph visualization, as it doesn't handle empty basic blocks properly */
3601 mono_insert_nop_in_empty_bb (cfg);
3603 mono_cfg_dump_ir (cfg, "decompose_typechecks");
3607 * Should be done after cprop which can do strength reduction on
3608 * some of these ops, after propagating immediates.
3610 if (cfg->has_emulated_ops) {
3611 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3612 mono_cfg_dump_ir (cfg, "local_emulate_ops");
3615 if (cfg->opt & MONO_OPT_BRANCH) {
3616 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3617 mono_cfg_dump_ir (cfg, "optimize_branches");
3620 /* This must be done _before_ global reg alloc and _after_ decompose */
3621 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3622 mono_cfg_dump_ir (cfg, "handle_global_vregs");
3623 if (cfg->opt & MONO_OPT_DEADCE) {
3624 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3625 mono_cfg_dump_ir (cfg, "local_deadce");
3627 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS) {
3628 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3629 mono_cfg_dump_ir (cfg, "local_alias_analysis");
3631 /* Disable this for LLVM to make the IR easier to handle */
3632 if (!COMPILE_LLVM (cfg)) {
3633 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3634 mono_cfg_dump_ir (cfg, "if_conversion");
3637 mono_threads_safepoint ();
3639 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3640 mono_cfg_dump_ir (cfg, "bb_ordering");
3642 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3644 * we disable some optimizations if there are too many variables
3645 * because JIT time may become too expensive. The actual number needs
3646 * to be tweaked and eventually the non-linear algorithms should be fixed.
3648 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3649 cfg->disable_ssa = TRUE;
3652 if (cfg->opt & MONO_OPT_LOOP) {
3653 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3654 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3657 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3658 mono_cfg_dump_ir (cfg, "insert_safepoints");
3660 /* after method_to_ir */
3662 if (MONO_METHOD_COMPILE_END_ENABLED ())
3663 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3668 if (header->num_clauses)
3669 cfg->disable_ssa = TRUE;
3672 //#define DEBUGSSA "logic_run"
3673 //#define DEBUGSSA_CLASS "Tests"
3676 if (!cfg->disable_ssa) {
3677 mono_local_cprop (cfg);
3680 mono_ssa_compute (cfg);
3684 if (cfg->opt & MONO_OPT_SSA) {
3685 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3687 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3688 mono_cfg_dump_ir (cfg, "ssa_compute");
3691 if (cfg->verbose_level >= 2) {
3698 /* after SSA translation */
3700 if (MONO_METHOD_COMPILE_END_ENABLED ())
3701 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3705 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3706 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3708 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3709 mono_cfg_dump_ir (cfg, "ssa_cprop");
3715 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3716 //mono_ssa_strength_reduction (cfg);
3718 if (cfg->opt & MONO_OPT_DEADCE) {
3719 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3720 mono_cfg_dump_ir (cfg, "ssa_deadce");
3723 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM)) {
3724 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3725 mono_cfg_dump_ir (cfg, "perform_abc_removal");
3728 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3729 mono_cfg_dump_ir (cfg, "ssa_remove");
3730 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3731 mono_cfg_dump_ir (cfg, "local_cprop2");
3732 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3733 mono_cfg_dump_ir (cfg, "handle_global_vregs2");
3734 if (cfg->opt & MONO_OPT_DEADCE) {
3735 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3736 mono_cfg_dump_ir (cfg, "local_deadce2");
3739 if (cfg->opt & MONO_OPT_BRANCH) {
3740 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3741 mono_cfg_dump_ir (cfg, "optimize_branches2");
3746 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3747 mono_ssa_loop_invariant_code_motion (cfg);
3748 mono_cfg_dump_ir (cfg, "loop_invariant_code_motion");
3749 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3750 if (cfg->opt & MONO_OPT_ABCREM) {
3751 mono_perform_abc_removal (cfg);
3752 mono_cfg_dump_ir (cfg, "abc_removal");
3756 /* after SSA removal */
3758 if (MONO_METHOD_COMPILE_END_ENABLED ())
3759 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3763 if (cfg->llvm_only && cfg->gsharedvt)
3764 mono_ssa_remove_gsharedvt (cfg);
3766 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3767 if (COMPILE_SOFT_FLOAT (cfg))
3768 mono_decompose_soft_float (cfg);
3770 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3771 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS) {
3772 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3773 mono_cfg_dump_ir (cfg, "decompose_array_access_opts");
3777 #ifndef MONO_ARCH_GOT_REG
3782 g_assert (cfg->got_var_allocated);
3785 * Allways allocate the GOT var to a register, because keeping it
3786 * in memory will increase the number of live temporaries in some
3787 * code created by inssel.brg, leading to the well known spills+
3788 * branches problem. Testcase: mcs crash in
3789 * System.MonoCustomAttrs:GetCustomAttributes.
3791 #ifdef MONO_ARCH_GOT_REG
3792 got_reg = MONO_ARCH_GOT_REG;
3794 regs = mono_arch_get_global_int_regs (cfg);
3796 got_reg = GPOINTER_TO_INT (regs->data);
3799 cfg->got_var->opcode = OP_REGVAR;
3800 cfg->got_var->dreg = got_reg;
3801 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3805 * Have to call this again to process variables added since the first call.
3807 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3809 if (cfg->opt & MONO_OPT_LINEARS) {
3810 GList *vars, *regs, *l;
3812 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3813 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3814 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3815 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3817 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3818 regs = mono_arch_get_global_int_regs (cfg);
3819 /* Remove the reg reserved for holding the GOT address */
3821 for (l = regs; l; l = l->next) {
3822 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3823 regs = g_list_delete_link (regs, l);
3828 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
3829 mono_cfg_dump_ir (cfg, "linear_scan");
3833 //mono_print_code (cfg, "");
3837 /* variables are allocated after decompose, since decompose could create temps */
3838 if (!COMPILE_LLVM (cfg)) {
3839 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
3840 mono_cfg_dump_ir (cfg, "arch_allocate_vars");
3841 if (cfg->exception_type)
3846 mono_allocate_gsharedvt_vars (cfg);
3848 if (!COMPILE_LLVM (cfg)) {
3849 gboolean need_local_opts;
3850 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
3851 mono_cfg_dump_ir (cfg, "spill_global_vars");
3853 if (need_local_opts || cfg->compile_aot) {
3854 /* To optimize code created by spill_global_vars */
3855 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
3856 if (cfg->opt & MONO_OPT_DEADCE)
3857 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
3858 mono_cfg_dump_ir (cfg, "needs_local_opts");
3862 mono_insert_branches_between_bblocks (cfg);
3864 if (COMPILE_LLVM (cfg)) {
3868 /* The IR has to be in SSA form for LLVM */
3869 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3870 cfg->exception_message = g_strdup ("SSA disabled.");
3871 cfg->disable_llvm = TRUE;
3874 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3875 mono_decompose_array_access_opts (cfg);
3877 if (!cfg->disable_llvm)
3878 mono_llvm_emit_method (cfg);
3879 if (cfg->disable_llvm) {
3880 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3881 //nm = mono_method_full_name (cfg->method, TRUE);
3882 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3885 if (cfg->llvm_only) {
3886 cfg->disable_aot = TRUE;
3889 mono_destroy_compile (cfg);
3891 goto restart_compile;
3894 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3895 nm = mono_method_full_name (cfg->method, TRUE);
3896 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3898 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3903 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
3904 mono_cfg_dump_ir (cfg, "codegen");
3905 if (cfg->exception_type)
3909 if (COMPILE_LLVM (cfg))
3910 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3912 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3914 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
3916 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3917 if (cfg->extend_live_ranges) {
3918 /* Extend live ranges to cover the whole method */
3919 for (i = 0; i < cfg->num_varinfo; ++i)
3920 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3924 if (!cfg->compile_aot)
3925 mono_save_xdebug_info (cfg);
3927 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
3929 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
3931 if (cfg->verbose_level >= 2) {
3932 char *id = mono_method_full_name (cfg->method, FALSE);
3933 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3937 if (!cfg->compile_aot) {
3938 mono_domain_lock (cfg->domain);
3939 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
3941 if (cfg->method->dynamic)
3942 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
3943 mono_domain_unlock (cfg->domain);
3948 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
3951 /* collect statistics */
3952 #ifndef DISABLE_PERFCOUNTERS
3953 mono_perfcounters->jit_methods++;
3954 mono_perfcounters->jit_bytes += header->code_size;
3956 mono_jit_stats.allocated_code_size += cfg->code_len;
3957 code_size_ratio = cfg->code_len;
3958 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
3959 mono_jit_stats.biggest_method_size = code_size_ratio;
3960 g_free (mono_jit_stats.biggest_method);
3961 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3963 code_size_ratio = (code_size_ratio * 100) / header->code_size;
3964 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
3965 mono_jit_stats.max_code_size_ratio = code_size_ratio;
3966 g_free (mono_jit_stats.max_ratio_method);
3967 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3969 mono_jit_stats.native_code_size += cfg->code_len;
3971 if (MONO_METHOD_COMPILE_END_ENABLED ())
3972 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3974 mono_cfg_dump_close_group (cfg);
3980 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
3982 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
3986 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
3988 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
3989 hole->clause = clause;
3990 hole->start_offset = start - cfg->native_code;
3991 hole->basic_block = bb;
3993 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
3997 mono_cfg_set_exception (MonoCompile *cfg, int type)
3999 cfg->exception_type = type;
4002 /* Assumes ownership of the MSG argument */
4004 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
4006 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
4007 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", msg);
4010 #endif /* DISABLE_JIT */
4013 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
4015 MonoDomain *domain = mono_get_root_domain ();
4020 if (info->uw_info) {
4021 uw_info = info->uw_info;
4022 info_len = info->uw_info_len;
4024 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
4027 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
4028 jinfo->d.method = wrapper;
4029 jinfo->code_start = info->code;
4030 jinfo->code_size = info->code_size;
4031 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
4039 GTimer *mono_time_track_start ()
4041 return g_timer_new ();
4044 void mono_time_track_end (double *time, GTimer *timer)
4046 g_timer_stop (timer);
4047 *time += g_timer_elapsed (timer, NULL);
4048 g_timer_destroy (timer);
4051 void mono_update_jit_stats (MonoCompile *cfg)
4053 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4054 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4055 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4056 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4057 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4058 mono_jit_stats.regvars += cfg->stat_n_regvars;
4059 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4060 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4061 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4065 * mono_jit_compile_method_inner:
4067 * Main entry point for the JIT.
4070 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4073 gpointer code = NULL;
4074 MonoJitInfo *jinfo, *info;
4076 MonoException *ex = NULL;
4077 guint32 prof_options;
4079 MonoMethod *prof_method, *shared;
4081 mono_error_init (error);
4083 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4084 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4086 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4088 if (!piinfo->addr) {
4089 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4090 piinfo->addr = mono_lookup_internal_call (method);
4091 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4093 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);
4095 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);
4098 mono_lookup_pinvoke_call (method, NULL, NULL);
4100 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4101 gpointer compiled_method = mono_compile_method_checked (nm, error);
4102 return_val_if_nok (error, NULL);
4103 code = mono_get_addr_from_ftnptr (compiled_method);
4104 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4106 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4108 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4110 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4111 const char *name = method->name;
4112 char *full_name, *msg;
4115 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4116 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4117 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("ves_icall_mono_delegate_ctor");
4120 * We need to make sure this wrapper
4121 * is compiled because it might end up
4122 * in an (M)RGCTX if generic sharing
4123 * is enabled, and would be called
4124 * indirectly. If it were a
4125 * trampoline we'd try to patch that
4126 * indirect call, which is not
4129 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4130 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4131 if (mono_llvm_only) {
4132 nm = mono_marshal_get_delegate_invoke (method, NULL);
4133 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4134 mono_error_assert_ok (error);
4135 return mono_get_addr_from_ftnptr (compiled_ptr);
4137 return mono_create_delegate_trampoline (target_domain, method->klass);
4138 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4139 nm = mono_marshal_get_delegate_begin_invoke (method);
4140 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4141 mono_error_assert_ok (error);
4142 return mono_get_addr_from_ftnptr (compiled_ptr);
4143 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4144 nm = mono_marshal_get_delegate_end_invoke (method);
4145 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4146 mono_error_assert_ok (error);
4147 return mono_get_addr_from_ftnptr (compiled_ptr);
4151 full_name = mono_method_full_name (method, TRUE);
4152 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4153 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4154 mono_error_set_exception_instance (error, ex);
4160 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4161 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4163 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4164 static MonoTrampInfo *in_tinfo, *out_tinfo;
4165 MonoTrampInfo *tinfo;
4167 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4169 if (is_in && in_tinfo)
4170 return in_tinfo->code;
4171 else if (!is_in && out_tinfo)
4172 return out_tinfo->code;
4175 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4177 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4180 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4182 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4183 jinfo = create_jit_info_for_trampoline (method, tinfo);
4184 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4193 if (mono_aot_only) {
4194 char *fullname = mono_method_full_name (method, TRUE);
4195 mono_error_set_execution_engine (error, "Attempting to JIT compile method '%s' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.\n", fullname);
4201 jit_timer = mono_time_track_start ();
4202 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4203 mono_time_track_end (&mono_jit_stats.jit_time, jit_timer);
4205 prof_method = cfg->method;
4207 switch (cfg->exception_type) {
4208 case MONO_EXCEPTION_NONE:
4210 case MONO_EXCEPTION_TYPE_LOAD:
4211 case MONO_EXCEPTION_MISSING_FIELD:
4212 case MONO_EXCEPTION_MISSING_METHOD:
4213 case MONO_EXCEPTION_FILE_NOT_FOUND:
4214 case MONO_EXCEPTION_BAD_IMAGE:
4215 case MONO_EXCEPTION_INVALID_PROGRAM: {
4216 /* Throw a type load exception if needed */
4217 if (cfg->exception_ptr) {
4218 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4220 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4221 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4222 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4223 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4224 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4225 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4226 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4227 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4228 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4229 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4230 else if (cfg->exception_type == MONO_EXCEPTION_INVALID_PROGRAM)
4231 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4233 g_assert_not_reached ();
4237 case MONO_EXCEPTION_MONO_ERROR:
4238 // FIXME: MonoError has no copy ctor
4239 g_assert (!mono_error_ok (&cfg->error));
4240 ex = mono_error_convert_to_exception (&cfg->error);
4243 g_assert_not_reached ();
4247 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4248 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4250 mono_destroy_compile (cfg);
4251 mono_error_set_exception_instance (error, ex);
4256 if (mono_method_is_generic_sharable (method, FALSE))
4257 shared = mini_get_shared_method (method);
4261 mono_domain_lock (target_domain);
4263 /* Check if some other thread already did the job. In this case, we can
4264 discard the code this thread generated. */
4266 info = mini_lookup_method (target_domain, method, shared);
4268 /* We can't use a domain specific method in another domain */
4269 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4270 code = info->code_start;
4271 // printf("Discarding code for method %s\n", method->name);
4275 /* The lookup + insert is atomic since this is done inside the domain lock */
4276 mono_domain_jit_code_hash_lock (target_domain);
4277 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4278 mono_domain_jit_code_hash_unlock (target_domain);
4280 code = cfg->native_code;
4282 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4283 mono_stats.generics_shared_methods++;
4285 mono_stats.gsharedvt_methods++;
4288 jinfo = cfg->jit_info;
4290 prof_options = cfg->prof_options;
4293 * Update global stats while holding a lock, instead of doing many
4294 * InterlockedIncrement operations during JITting.
4296 mono_update_jit_stats (cfg);
4298 mono_destroy_compile (cfg);
4301 if (domain_jit_info (target_domain)->jump_target_hash) {
4302 MonoJumpInfo patch_info;
4303 MonoJumpList *jlist;
4305 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4307 patch_info.next = NULL;
4308 patch_info.ip.i = 0;
4309 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4310 patch_info.data.method = method;
4311 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4313 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4314 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4315 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4316 if (!mono_error_ok (error))
4318 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4321 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4322 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE, error);
4330 /* Update llvm callees */
4331 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4332 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4335 for (l = callees; l; l = l->next) {
4336 gpointer *addr = (gpointer*)l->data;
4342 mono_emit_jit_map (jinfo);
4344 mono_domain_unlock (target_domain);
4346 if (!mono_error_ok (error))
4349 vtable = mono_class_vtable (target_domain, method->klass);
4351 ex = mono_class_get_exception_for_failure (method->klass);
4353 mono_error_set_exception_instance (error, ex);
4357 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4358 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4359 if (mono_marshal_method_from_wrapper (method)) {
4360 /* Native func wrappers have no method */
4361 /* The profiler doesn't know about wrappers, so pass the original icall method */
4362 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4365 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4366 if (prof_method != method) {
4367 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4371 if (!mono_runtime_class_init_full (vtable, error))
4377 * mini_get_underlying_type:
4379 * Return the type the JIT will use during compilation.
4380 * Handles: byref, enums, native types, generic sharing.
4381 * For gsharedvt types, it will return the original VAR/MVAR.
4384 mini_get_underlying_type (MonoType *type)
4386 return mini_type_get_underlying_type (type);
4390 mini_jit_init (void)
4392 mono_os_mutex_init_recursive (&jit_mutex);
4394 current_backend = g_new0 (MonoBackend, 1);
4395 init_backend (current_backend);
4400 mini_jit_cleanup (void)
4403 g_free (emul_opcode_map);
4404 g_free (emul_opcode_opcodes);
4410 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4412 g_assert_not_reached ();
4415 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4417 g_assert_not_reached ();
4422 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4425 mono_llvm_cpp_throw_exception (void)
4427 g_assert_not_reached ();
4435 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4437 g_assert_not_reached ();
4442 mono_destroy_compile (MonoCompile *cfg)
4444 g_assert_not_reached ();
4448 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4450 g_assert_not_reached ();
4453 #endif /* DISABLE_JIT */