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/io-layer/io-layer.h>
64 #include "seq-points.h"
72 #include "jit-icalls.h"
75 #include "debugger-agent.h"
76 #include "llvm-runtime.h"
77 #include "mini-llvm.h"
79 MonoTraceSpec *mono_jit_trace_calls;
80 MonoMethodDesc *mono_inject_async_exc_method;
81 int mono_inject_async_exc_pos;
82 MonoMethodDesc *mono_break_at_bb_method;
83 int mono_break_at_bb_bb_num;
84 gboolean mono_do_x86_stack_align = TRUE;
85 gboolean mono_using_xdebug;
87 #define mono_jit_lock() mono_os_mutex_lock (&jit_mutex)
88 #define mono_jit_unlock() mono_os_mutex_unlock (&jit_mutex)
89 static mono_mutex_t jit_mutex;
91 MonoBackend *current_backend;
96 mono_realloc_native_code (MonoCompile *cfg)
98 #if defined(__default_codegen__)
99 return g_realloc (cfg->native_code, cfg->code_size);
100 #elif defined(__native_client_codegen__)
102 gpointer native_code;
103 guint alignment_check;
105 /* Save the old alignment offset so we can re-align after the realloc. */
106 old_padding = (guint)(cfg->native_code - cfg->native_code_alloc);
107 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
109 cfg->native_code_alloc = g_realloc ( cfg->native_code_alloc,
110 cfg->code_size + kNaClAlignment );
112 /* Align native_code to next nearest kNaClAlignment byte. */
113 native_code = (guint)cfg->native_code_alloc + kNaClAlignment;
114 native_code = (guint)native_code & ~kNaClAlignmentMask;
116 /* Shift the data to be 32-byte aligned again. */
117 memmove (native_code, cfg->native_code_alloc + old_padding, cfg->code_size);
119 alignment_check = (guint)native_code & kNaClAlignmentMask;
120 g_assert (alignment_check == 0);
123 g_assert_not_reached ();
124 return cfg->native_code;
128 #ifdef __native_client_codegen__
130 /* Prevent instructions from straddling a 32-byte alignment boundary. */
131 /* Instructions longer than 32 bytes must be aligned internally. */
132 /* IN: pcode, instlen */
134 void mono_nacl_align_inst(guint8 **pcode, int instlen) {
137 space_in_block = kNaClAlignment - ((uintptr_t)(*pcode) & kNaClAlignmentMask);
139 if (G_UNLIKELY (instlen >= kNaClAlignment)) {
140 g_assert_not_reached();
141 } else if (instlen > space_in_block) {
142 *pcode = mono_arch_nacl_pad(*pcode, space_in_block);
146 /* Move emitted call sequence to the end of a kNaClAlignment-byte block. */
147 /* IN: start pointer to start of call sequence */
148 /* IN: pcode pointer to end of call sequence (current "IP") */
149 /* OUT: start pointer to the start of the call sequence after padding */
150 /* OUT: pcode pointer to the end of the call sequence after padding */
151 void mono_nacl_align_call(guint8 **start, guint8 **pcode) {
152 const size_t MAX_NACL_CALL_LENGTH = kNaClAlignment;
153 guint8 copy_of_call[MAX_NACL_CALL_LENGTH];
156 const size_t length = (size_t)((*pcode)-(*start));
157 g_assert(length < MAX_NACL_CALL_LENGTH);
159 memcpy(copy_of_call, *start, length);
160 temp = mono_nacl_pad_call(*start, (guint8)length);
161 memcpy(temp, copy_of_call, length);
163 (*pcode) = temp + length;
166 /* mono_nacl_pad_call(): Insert padding for Native Client call instructions */
167 /* code pointer to buffer for emitting code */
168 /* ilength length of call instruction */
169 guint8 *mono_nacl_pad_call(guint8 *code, guint8 ilength) {
170 int freeSpaceInBlock = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
171 int padding = freeSpaceInBlock - ilength;
174 /* There isn't enough space in this block for the instruction. */
175 /* Fill this block and start a new one. */
176 code = mono_arch_nacl_pad(code, freeSpaceInBlock);
177 freeSpaceInBlock = kNaClAlignment;
178 padding = freeSpaceInBlock - ilength;
180 g_assert(ilength > 0);
181 g_assert(padding >= 0);
182 g_assert(padding < kNaClAlignment);
183 if (0 == padding) return code;
184 return mono_arch_nacl_pad(code, padding);
187 guint8 *mono_nacl_align(guint8 *code) {
188 int padding = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
189 if (padding != kNaClAlignment) code = mono_arch_nacl_pad(code, padding);
193 void mono_nacl_fix_patches(const guint8 *code, MonoJumpInfo *ji)
195 MonoJumpInfo *patch_info;
196 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
197 unsigned char *ip = patch_info->ip.i + code;
198 ip = mono_arch_nacl_skip_nops(ip);
199 patch_info->ip.i = ip - code;
202 #endif /* __native_client_codegen__ */
205 MonoExceptionClause *clause;
206 MonoBasicBlock *basic_block;
211 * mono_emit_unwind_op:
213 * Add an unwind op with the given parameters for the list of unwind ops stored in
217 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
219 MonoUnwindOp *op = (MonoUnwindOp *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
226 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
227 if (cfg->verbose_level > 1) {
230 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
232 case DW_CFA_def_cfa_register:
233 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
235 case DW_CFA_def_cfa_offset:
236 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
239 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
245 #define MONO_INIT_VARINFO(vi,id) do { \
246 (vi)->range.first_use.pos.bid = 0xffff; \
252 * mono_unlink_bblock:
254 * Unlink two basic blocks.
257 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
263 for (i = 0; i < from->out_count; ++i) {
264 if (to == from->out_bb [i]) {
271 for (i = 0; i < from->out_count; ++i) {
272 if (from->out_bb [i] != to)
273 from->out_bb [pos ++] = from->out_bb [i];
275 g_assert (pos == from->out_count - 1);
280 for (i = 0; i < to->in_count; ++i) {
281 if (from == to->in_bb [i]) {
288 for (i = 0; i < to->in_count; ++i) {
289 if (to->in_bb [i] != from)
290 to->in_bb [pos ++] = to->in_bb [i];
292 g_assert (pos == to->in_count - 1);
298 * mono_bblocks_linked:
300 * Return whenever BB1 and BB2 are linked in the CFG.
303 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
307 for (i = 0; i < bb1->out_count; ++i) {
308 if (bb1->out_bb [i] == bb2)
316 mono_find_block_region_notry (MonoCompile *cfg, int offset)
318 MonoMethodHeader *header = cfg->header;
319 MonoExceptionClause *clause;
322 for (i = 0; i < header->num_clauses; ++i) {
323 clause = &header->clauses [i];
324 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
325 (offset < (clause->handler_offset)))
326 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
328 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
329 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
330 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
331 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
332 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
334 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
342 * mono_get_block_region_notry:
344 * Return the region corresponding to REGION, ignoring try clauses nested inside
348 mono_get_block_region_notry (MonoCompile *cfg, int region)
350 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
351 MonoMethodHeader *header = cfg->header;
354 * This can happen if a try clause is nested inside a finally clause.
356 int clause_index = (region >> 8) - 1;
357 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
359 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
366 mono_find_spvar_for_region (MonoCompile *cfg, int region)
368 region = mono_get_block_region_notry (cfg, region);
370 return (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
374 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
378 array [*dfn] = start;
379 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
380 for (i = 0; i < start->out_count; ++i) {
381 if (start->out_bb [i]->dfn)
384 start->out_bb [i]->dfn = *dfn;
385 start->out_bb [i]->df_parent = start;
386 array [*dfn] = start->out_bb [i];
387 df_visit (start->out_bb [i], dfn, array);
392 mono_reverse_branch_op (guint32 opcode)
394 static const int reverse_map [] = {
395 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
396 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
398 static const int reverse_fmap [] = {
399 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
400 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
402 static const int reverse_lmap [] = {
403 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
404 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
406 static const int reverse_imap [] = {
407 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
408 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
411 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
412 opcode = reverse_map [opcode - CEE_BEQ];
413 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
414 opcode = reverse_fmap [opcode - OP_FBEQ];
415 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
416 opcode = reverse_lmap [opcode - OP_LBEQ];
417 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
418 opcode = reverse_imap [opcode - OP_IBEQ];
420 g_assert_not_reached ();
426 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
428 type = mini_get_underlying_type (type);
431 switch (type->type) {
434 return OP_STOREI1_MEMBASE_REG;
437 return OP_STOREI2_MEMBASE_REG;
440 return OP_STOREI4_MEMBASE_REG;
444 case MONO_TYPE_FNPTR:
445 return OP_STORE_MEMBASE_REG;
446 case MONO_TYPE_CLASS:
447 case MONO_TYPE_STRING:
448 case MONO_TYPE_OBJECT:
449 case MONO_TYPE_SZARRAY:
450 case MONO_TYPE_ARRAY:
451 return OP_STORE_MEMBASE_REG;
454 return OP_STOREI8_MEMBASE_REG;
456 return OP_STORER4_MEMBASE_REG;
458 return OP_STORER8_MEMBASE_REG;
459 case MONO_TYPE_VALUETYPE:
460 if (type->data.klass->enumtype) {
461 type = mono_class_enum_basetype (type->data.klass);
464 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
465 return OP_STOREX_MEMBASE;
466 return OP_STOREV_MEMBASE;
467 case MONO_TYPE_TYPEDBYREF:
468 return OP_STOREV_MEMBASE;
469 case MONO_TYPE_GENERICINST:
470 type = &type->data.generic_class->container_class->byval_arg;
474 g_assert (mini_type_var_is_vt (type));
475 return OP_STOREV_MEMBASE;
477 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
483 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
485 type = mini_get_underlying_type (type);
487 switch (type->type) {
489 return OP_LOADI1_MEMBASE;
491 return OP_LOADU1_MEMBASE;
493 return OP_LOADI2_MEMBASE;
495 return OP_LOADU2_MEMBASE;
497 return OP_LOADI4_MEMBASE;
499 return OP_LOADU4_MEMBASE;
503 case MONO_TYPE_FNPTR:
504 return OP_LOAD_MEMBASE;
505 case MONO_TYPE_CLASS:
506 case MONO_TYPE_STRING:
507 case MONO_TYPE_OBJECT:
508 case MONO_TYPE_SZARRAY:
509 case MONO_TYPE_ARRAY:
510 return OP_LOAD_MEMBASE;
513 return OP_LOADI8_MEMBASE;
515 return OP_LOADR4_MEMBASE;
517 return OP_LOADR8_MEMBASE;
518 case MONO_TYPE_VALUETYPE:
519 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
520 return OP_LOADX_MEMBASE;
521 case MONO_TYPE_TYPEDBYREF:
522 return OP_LOADV_MEMBASE;
523 case MONO_TYPE_GENERICINST:
524 if (mono_type_generic_inst_is_valuetype (type))
525 return OP_LOADV_MEMBASE;
527 return OP_LOAD_MEMBASE;
531 g_assert (cfg->gshared);
532 g_assert (mini_type_var_is_vt (type));
533 return OP_LOADV_MEMBASE;
535 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
541 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
543 type = mini_get_underlying_type (type);
544 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
545 g_assert (mini_type_var_is_vt (type));
548 return mono_type_to_stind (type);
552 mono_op_imm_to_op (int opcode)
556 #if SIZEOF_REGISTER == 4
574 #if SIZEOF_REGISTER == 4
580 #if SIZEOF_REGISTER == 4
586 #if SIZEOF_REGISTER == 4
632 #if SIZEOF_REGISTER == 4
638 #if SIZEOF_REGISTER == 4
657 case OP_ICOMPARE_IMM:
659 case OP_LOCALLOC_IMM:
667 * mono_decompose_op_imm:
669 * Replace the OP_.._IMM INS with its non IMM variant.
672 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
674 int opcode2 = mono_op_imm_to_op (ins->opcode);
677 const char *spec = INS_INFO (ins->opcode);
679 if (spec [MONO_INST_SRC2] == 'l') {
680 dreg = mono_alloc_lreg (cfg);
682 /* Load the 64bit constant using decomposed ops */
683 MONO_INST_NEW (cfg, temp, OP_ICONST);
684 temp->inst_c0 = ins->inst_ls_word;
685 temp->dreg = MONO_LVREG_LS (dreg);
686 mono_bblock_insert_before_ins (bb, ins, temp);
688 MONO_INST_NEW (cfg, temp, OP_ICONST);
689 temp->inst_c0 = ins->inst_ms_word;
690 temp->dreg = MONO_LVREG_MS (dreg);
692 dreg = mono_alloc_ireg (cfg);
694 MONO_INST_NEW (cfg, temp, OP_ICONST);
695 temp->inst_c0 = ins->inst_imm;
699 mono_bblock_insert_before_ins (bb, ins, temp);
702 g_error ("mono_op_imm_to_op failed for %s\n", mono_inst_name (ins->opcode));
703 ins->opcode = opcode2;
705 if (ins->opcode == OP_LOCALLOC)
710 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
714 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
716 if (vreg >= cfg->vreg_to_inst_len) {
717 MonoInst **tmp = cfg->vreg_to_inst;
718 int size = cfg->vreg_to_inst_len;
720 while (vreg >= cfg->vreg_to_inst_len)
721 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
722 cfg->vreg_to_inst = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
724 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
726 cfg->vreg_to_inst [vreg] = inst;
729 #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)))
730 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
733 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
736 int num = cfg->num_varinfo;
739 type = mini_get_underlying_type (type);
741 if ((num + 1) >= cfg->varinfo_count) {
742 int orig_count = cfg->varinfo_count;
743 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
744 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
745 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
746 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
749 cfg->stat_allocate_var++;
751 MONO_INST_NEW (cfg, inst, opcode);
753 inst->inst_vtype = type;
754 inst->klass = mono_class_from_mono_type (type);
755 type_to_eval_stack_type (cfg, type, inst);
756 /* if set to 1 the variable is native */
757 inst->backend.is_pinvoke = 0;
760 if (mono_class_has_failure (inst->klass))
761 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
763 if (cfg->compute_gc_maps) {
765 mono_mark_vreg_as_mp (cfg, vreg);
767 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
768 inst->flags |= MONO_INST_GC_TRACK;
769 mono_mark_vreg_as_ref (cfg, vreg);
774 cfg->varinfo [num] = inst;
776 MONO_INIT_VARINFO (&cfg->vars [num], num);
777 MONO_VARINFO (cfg, num)->vreg = vreg;
780 set_vreg_to_inst (cfg, vreg, inst);
782 #if SIZEOF_REGISTER == 4
783 if (mono_arch_is_soft_float ()) {
784 regpair = mono_type_is_long (type) || mono_type_is_float (type);
786 regpair = mono_type_is_long (type);
796 * These two cannot be allocated using create_var_for_vreg since that would
797 * put it into the cfg->varinfo array, confusing many parts of the JIT.
801 * Set flags to VOLATILE so SSA skips it.
804 if (cfg->verbose_level >= 4) {
805 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, MONO_LVREG_LS (inst->dreg), MONO_LVREG_MS (inst->dreg));
808 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
809 if (mono_type_is_float (type))
810 inst->flags = MONO_INST_VOLATILE;
813 /* Allocate a dummy MonoInst for the first vreg */
814 MONO_INST_NEW (cfg, tree, OP_LOCAL);
815 tree->dreg = MONO_LVREG_LS (inst->dreg);
816 if (cfg->opt & MONO_OPT_SSA)
817 tree->flags = MONO_INST_VOLATILE;
819 tree->type = STACK_I4;
820 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
821 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
823 set_vreg_to_inst (cfg, MONO_LVREG_LS (inst->dreg), tree);
825 /* Allocate a dummy MonoInst for the second vreg */
826 MONO_INST_NEW (cfg, tree, OP_LOCAL);
827 tree->dreg = MONO_LVREG_MS (inst->dreg);
828 if (cfg->opt & MONO_OPT_SSA)
829 tree->flags = MONO_INST_VOLATILE;
831 tree->type = STACK_I4;
832 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
833 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
835 set_vreg_to_inst (cfg, MONO_LVREG_MS (inst->dreg), tree);
839 if (cfg->verbose_level > 2)
840 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
845 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
848 type = mini_get_underlying_type (type);
850 if (mono_type_is_long (type))
851 dreg = mono_alloc_dreg (cfg, STACK_I8);
852 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
853 dreg = mono_alloc_dreg (cfg, STACK_R8);
855 /* All the others are unified */
856 dreg = mono_alloc_preg (cfg);
858 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
862 mini_get_int_to_float_spill_area (MonoCompile *cfg)
865 if (!cfg->iconv_raw_var) {
866 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
867 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
869 return cfg->iconv_raw_var;
876 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
878 if (vreg >= cfg->vreg_is_ref_len) {
879 gboolean *tmp = cfg->vreg_is_ref;
880 int size = cfg->vreg_is_ref_len;
882 while (vreg >= cfg->vreg_is_ref_len)
883 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
884 cfg->vreg_is_ref = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
886 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
888 cfg->vreg_is_ref [vreg] = TRUE;
892 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
894 if (vreg >= cfg->vreg_is_mp_len) {
895 gboolean *tmp = cfg->vreg_is_mp;
896 int size = cfg->vreg_is_mp_len;
898 while (vreg >= cfg->vreg_is_mp_len)
899 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
900 cfg->vreg_is_mp = (gboolean *)mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
902 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
904 cfg->vreg_is_mp [vreg] = TRUE;
908 type_from_stack_type (MonoInst *ins)
911 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
912 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
913 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
914 case STACK_R8: return &mono_defaults.double_class->byval_arg;
917 * this if used to be commented without any specific reason, but
918 * it breaks #80235 when commented
921 return &ins->klass->this_arg;
923 return &mono_defaults.object_class->this_arg;
925 /* ins->klass may not be set for ldnull.
926 * Also, if we have a boxed valuetype, we want an object lass,
927 * not the valuetype class
929 if (ins->klass && !ins->klass->valuetype)
930 return &ins->klass->byval_arg;
931 return &mono_defaults.object_class->byval_arg;
932 case STACK_VTYPE: return &ins->klass->byval_arg;
934 g_error ("stack type %d to montype not handled\n", ins->type);
940 mono_type_from_stack_type (MonoInst *ins)
942 return type_from_stack_type (ins);
946 * mono_add_ins_to_end:
948 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
951 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
956 MONO_ADD_INS (bb, inst);
960 switch (bb->last_ins->opcode) {
974 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
977 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
978 /* Need to insert the ins before the compare */
979 if (bb->code == bb->last_ins) {
980 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
984 if (bb->code->next == bb->last_ins) {
985 /* Only two instructions */
986 opcode = bb->code->opcode;
988 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)) {
990 mono_bblock_insert_before_ins (bb, bb->code, inst);
992 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
995 opcode = bb->last_ins->prev->opcode;
997 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)) {
999 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1001 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1006 MONO_ADD_INS (bb, inst);
1012 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1014 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1015 MonoJumpInfoBBTable *table;
1017 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1019 table->table_size = num_blocks;
1021 ji->ip.label = label;
1022 ji->type = MONO_PATCH_INFO_SWITCH;
1023 ji->data.table = table;
1024 ji->next = cfg->patch_info;
1025 cfg->patch_info = ji;
1028 static MonoMethodSignature *
1029 mono_get_array_new_va_signature (int arity)
1031 static GHashTable *sighash;
1032 MonoMethodSignature *res;
1037 sighash = g_hash_table_new (NULL, NULL);
1039 else if ((res = (MonoMethodSignature *)g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1044 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1047 if (ARCH_VARARG_ICALLS)
1048 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1049 res->call_convention = MONO_CALL_VARARG;
1052 res->call_convention = MONO_CALL_C;
1055 res->params [0] = &mono_defaults.int_class->byval_arg;
1056 for (i = 0; i < arity; i++)
1057 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1059 res->ret = &mono_defaults.object_class->byval_arg;
1061 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1068 mono_get_array_new_va_icall (int rank)
1070 MonoMethodSignature *esig;
1071 char icall_name [256];
1073 MonoJitICallInfo *info;
1075 /* Need to register the icall so it gets an icall wrapper */
1076 sprintf (icall_name, "ves_array_new_va_%d", rank);
1079 info = mono_find_jit_icall_by_name (icall_name);
1081 esig = mono_get_array_new_va_signature (rank);
1082 name = g_strdup (icall_name);
1083 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1091 mini_class_is_system_array (MonoClass *klass)
1093 if (klass->parent == mono_defaults.array_class)
1100 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1102 MonoAssembly *assembly = method->klass->image->assembly;
1103 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1105 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1107 return mono_assembly_has_skip_verification (assembly);
1111 * mini_method_verify:
1113 * Verify the method using the verfier.
1115 * Returns true if the method is invalid.
1118 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1121 gboolean is_fulltrust;
1123 if (method->verification_success)
1126 if (!mono_verifier_is_enabled_for_method (method))
1129 /*skip verification implies the assembly must be */
1130 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1132 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1135 for (tmp = res; tmp; tmp = tmp->next) {
1136 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1137 if (info->info.status == MONO_VERIFY_ERROR) {
1139 char *method_name = mono_method_full_name (method, TRUE);
1140 cfg->exception_type = info->exception_type;
1141 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1142 g_free (method_name);
1144 mono_free_verify_list (res);
1147 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1149 char *method_name = mono_method_full_name (method, TRUE);
1150 char *msg = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1152 if (info->exception_type == MONO_EXCEPTION_METHOD_ACCESS)
1153 mono_error_set_generic_error (&cfg->error, "System", "MethodAccessException", "%s", msg);
1154 else if (info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)
1155 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "%s", msg);
1156 else if (info->exception_type == MONO_EXCEPTION_UNVERIFIABLE_IL)
1157 mono_error_set_generic_error (&cfg->error, "System.Security", "VerificationException", msg);
1158 if (!mono_error_ok (&cfg->error)) {
1159 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
1162 cfg->exception_type = info->exception_type;
1163 cfg->exception_message = msg;
1165 g_free (method_name);
1167 mono_free_verify_list (res);
1171 mono_free_verify_list (res);
1173 method->verification_success = 1;
1177 /*Returns true if something went wrong*/
1179 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1181 MonoMethod *method_definition = method;
1182 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1184 while (method_definition->is_inflated) {
1185 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1186 method_definition = imethod->declaring;
1189 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1193 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1195 if (!domain_jit_info (domain)->dynamic_code_hash)
1196 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1197 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1200 static MonoJitDynamicMethodInfo*
1201 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1203 MonoJitDynamicMethodInfo *res;
1205 if (domain_jit_info (domain)->dynamic_code_hash)
1206 res = (MonoJitDynamicMethodInfo *)g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1214 GList *active, *inactive;
1219 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1221 MonoMethodVar *v1 = (MonoMethodVar*)a;
1222 MonoMethodVar *v2 = (MonoMethodVar*)b;
1226 else if (v1->interval->range && v2->interval->range)
1227 return v1->interval->range->from - v2->interval->range->from;
1228 else if (v1->interval->range)
1235 #define LSCAN_DEBUG(a) do { a; } while (0)
1237 #define LSCAN_DEBUG(a)
1241 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1243 int i, slot, offset, size;
1248 GList *vars = NULL, *l, *unhandled;
1249 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1252 gboolean reuse_slot;
1254 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1256 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1257 vtype_stack_slots = NULL;
1260 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1261 for (i = 0; i < cfg->num_varinfo; ++i)
1264 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1265 inst = cfg->varinfo [i];
1266 vmv = MONO_VARINFO (cfg, i);
1268 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1271 vars = g_list_prepend (vars, vmv);
1274 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1279 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1280 MonoMethodVar *current = unhandled->data;
1282 if (current->interval->range) {
1283 g_assert (current->interval->range->from >= i);
1284 i = current->interval->range->from;
1291 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1292 MonoMethodVar *current = (MonoMethodVar *)unhandled->data;
1295 inst = cfg->varinfo [vmv->idx];
1297 t = mono_type_get_underlying_type (inst->inst_vtype);
1298 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1301 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1302 * pinvoke wrappers when they call functions returning structures */
1303 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1304 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1309 size = mini_type_stack_size (t, &ialign);
1312 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1317 if (cfg->disable_reuse_stack_slots)
1320 t = mini_get_underlying_type (t);
1322 case MONO_TYPE_GENERICINST:
1323 if (!mono_type_generic_inst_is_valuetype (t)) {
1324 slot_info = &scalar_stack_slots [t->type];
1328 case MONO_TYPE_VALUETYPE:
1329 if (!vtype_stack_slots)
1330 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1331 for (i = 0; i < nvtypes; ++i)
1332 if (t->data.klass == vtype_stack_slots [i].vtype)
1335 slot_info = &vtype_stack_slots [i];
1337 g_assert (nvtypes < 256);
1338 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1339 slot_info = &vtype_stack_slots [nvtypes];
1342 if (cfg->disable_reuse_ref_stack_slots)
1349 #if SIZEOF_VOID_P == 4
1354 if (cfg->disable_ref_noref_stack_slot_share) {
1355 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1360 case MONO_TYPE_CLASS:
1361 case MONO_TYPE_OBJECT:
1362 case MONO_TYPE_ARRAY:
1363 case MONO_TYPE_SZARRAY:
1364 case MONO_TYPE_STRING:
1365 /* Share non-float stack slots of the same size */
1366 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1367 if (cfg->disable_reuse_ref_stack_slots)
1372 slot_info = &scalar_stack_slots [t->type];
1376 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1380 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1382 if (!current->interval->range) {
1383 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1387 inst->flags |= MONO_INST_IS_DEAD;
1392 pos = current->interval->range->from;
1394 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1395 if (current->interval->range)
1396 LSCAN_DEBUG (mono_linterval_print (current->interval));
1397 LSCAN_DEBUG (printf ("\n"));
1399 /* Check for intervals in active which expired or inactive */
1401 /* FIXME: Optimize this */
1404 for (l = slot_info->active; l != NULL; l = l->next) {
1405 MonoMethodVar *v = (MonoMethodVar*)l->data;
1407 if (v->interval->last_range->to < pos) {
1408 slot_info->active = g_list_delete_link (slot_info->active, l);
1409 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1410 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1414 else if (!mono_linterval_covers (v->interval, pos)) {
1415 slot_info->inactive = g_list_append (slot_info->inactive, v);
1416 slot_info->active = g_list_delete_link (slot_info->active, l);
1417 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1424 /* Check for intervals in inactive which expired or active */
1426 /* FIXME: Optimize this */
1429 for (l = slot_info->inactive; l != NULL; l = l->next) {
1430 MonoMethodVar *v = (MonoMethodVar*)l->data;
1432 if (v->interval->last_range->to < pos) {
1433 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1434 // FIXME: Enabling this seems to cause impossible to debug crashes
1435 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1436 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1440 else if (mono_linterval_covers (v->interval, pos)) {
1441 slot_info->active = g_list_append (slot_info->active, v);
1442 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1443 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1451 * This also handles the case when the variable is used in an
1452 * exception region, as liveness info is not computed there.
1455 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1458 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1459 if (slot_info->slots) {
1460 slot = GPOINTER_TO_INT (slot_info->slots->data);
1462 slot_info->slots = slot_info->slots->next;
1465 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1467 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1473 static int count = 0;
1476 if (count == atoi (g_getenv ("COUNT3")))
1477 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1478 if (count > atoi (g_getenv ("COUNT3")))
1481 mono_print_ins (inst);
1486 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1488 if (inst->flags & MONO_INST_LMF) {
1489 size = sizeof (MonoLMF);
1490 align = sizeof (mgreg_t);
1497 if (slot == 0xffffff) {
1499 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1500 * efficient copying (and to work around the fact that OP_MEMCPY
1501 * and OP_MEMSET ignores alignment).
1503 if (MONO_TYPE_ISSTRUCT (t)) {
1504 align = MAX (align, sizeof (gpointer));
1505 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1510 offset += align - 1;
1511 offset &= ~(align - 1);
1515 offset += align - 1;
1516 offset &= ~(align - 1);
1521 if (*stack_align == 0)
1522 *stack_align = align;
1525 offsets [vmv->idx] = slot;
1528 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1529 if (scalar_stack_slots [i].active)
1530 g_list_free (scalar_stack_slots [i].active);
1532 for (i = 0; i < nvtypes; ++i) {
1533 if (vtype_stack_slots [i].active)
1534 g_list_free (vtype_stack_slots [i].active);
1537 cfg->stat_locals_stack_size += offset;
1539 *stack_size = offset;
1544 * mono_allocate_stack_slots:
1546 * Allocate stack slots for all non register allocated variables using a
1547 * linear scan algorithm.
1548 * Returns: an array of stack offsets.
1549 * STACK_SIZE is set to the amount of stack space needed.
1550 * STACK_ALIGN is set to the alignment needed by the locals area.
1553 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1555 int i, slot, offset, size;
1560 GList *vars = NULL, *l;
1561 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1564 gboolean reuse_slot;
1566 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1567 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1569 scalar_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1570 vtype_stack_slots = NULL;
1573 offsets = (gint32 *)mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1574 for (i = 0; i < cfg->num_varinfo; ++i)
1577 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1578 inst = cfg->varinfo [i];
1579 vmv = MONO_VARINFO (cfg, i);
1581 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1584 vars = g_list_prepend (vars, vmv);
1587 vars = mono_varlist_sort (cfg, vars, 0);
1589 *stack_align = sizeof(mgreg_t);
1590 for (l = vars; l; l = l->next) {
1591 vmv = (MonoMethodVar *)l->data;
1592 inst = cfg->varinfo [vmv->idx];
1594 t = mono_type_get_underlying_type (inst->inst_vtype);
1595 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1598 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1599 * pinvoke wrappers when they call functions returning structures */
1600 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1601 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1605 size = mini_type_stack_size (t, &ialign);
1608 if (mono_class_has_failure (mono_class_from_mono_type (t)))
1609 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1611 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1616 if (cfg->disable_reuse_stack_slots)
1619 t = mini_get_underlying_type (t);
1621 case MONO_TYPE_GENERICINST:
1622 if (!mono_type_generic_inst_is_valuetype (t)) {
1623 slot_info = &scalar_stack_slots [t->type];
1627 case MONO_TYPE_VALUETYPE:
1628 if (!vtype_stack_slots)
1629 vtype_stack_slots = (StackSlotInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1630 for (i = 0; i < nvtypes; ++i)
1631 if (t->data.klass == vtype_stack_slots [i].vtype)
1634 slot_info = &vtype_stack_slots [i];
1636 g_assert (nvtypes < 256);
1637 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1638 slot_info = &vtype_stack_slots [nvtypes];
1641 if (cfg->disable_reuse_ref_stack_slots)
1648 #if SIZEOF_VOID_P == 4
1653 if (cfg->disable_ref_noref_stack_slot_share) {
1654 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1659 case MONO_TYPE_CLASS:
1660 case MONO_TYPE_OBJECT:
1661 case MONO_TYPE_ARRAY:
1662 case MONO_TYPE_SZARRAY:
1663 case MONO_TYPE_STRING:
1664 /* Share non-float stack slots of the same size */
1665 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1666 if (cfg->disable_reuse_ref_stack_slots)
1670 case MONO_TYPE_MVAR:
1671 slot_info = &scalar_stack_slots [t->type];
1674 slot_info = &scalar_stack_slots [t->type];
1679 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1680 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1682 /* expire old intervals in active */
1683 while (slot_info->active) {
1684 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1686 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1689 //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);
1691 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1692 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1696 * This also handles the case when the variable is used in an
1697 * exception region, as liveness info is not computed there.
1700 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1703 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1704 if (slot_info->slots) {
1705 slot = GPOINTER_TO_INT (slot_info->slots->data);
1707 slot_info->slots = slot_info->slots->next;
1710 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1715 static int count = 0;
1719 if (count == atoi (g_getenv ("COUNT")))
1720 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1721 if (count > atoi (g_getenv ("COUNT")))
1724 mono_print_ins (inst);
1729 if (inst->flags & MONO_INST_LMF) {
1731 * This variable represents a MonoLMF structure, which has no corresponding
1732 * CLR type, so hard-code its size/alignment.
1734 size = sizeof (MonoLMF);
1735 align = sizeof (mgreg_t);
1742 if (slot == 0xffffff) {
1744 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1745 * efficient copying (and to work around the fact that OP_MEMCPY
1746 * and OP_MEMSET ignores alignment).
1748 if (MONO_TYPE_ISSTRUCT (t)) {
1749 align = MAX (align, sizeof (gpointer));
1750 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1752 * Align the size too so the code generated for passing vtypes in
1753 * registers doesn't overwrite random locals.
1755 size = (size + (align - 1)) & ~(align -1);
1760 offset += align - 1;
1761 offset &= ~(align - 1);
1765 offset += align - 1;
1766 offset &= ~(align - 1);
1771 *stack_align = MAX (*stack_align, align);
1774 offsets [vmv->idx] = slot;
1777 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1778 if (scalar_stack_slots [i].active)
1779 g_list_free (scalar_stack_slots [i].active);
1781 for (i = 0; i < nvtypes; ++i) {
1782 if (vtype_stack_slots [i].active)
1783 g_list_free (vtype_stack_slots [i].active);
1786 cfg->stat_locals_stack_size += offset;
1788 *stack_size = offset;
1792 #define EMUL_HIT_SHIFT 3
1793 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1794 /* small hit bitmap cache */
1795 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1796 static short emul_opcode_num = 0;
1797 static short emul_opcode_alloced = 0;
1798 static short *emul_opcode_opcodes;
1799 static MonoJitICallInfo **emul_opcode_map;
1802 mono_find_jit_opcode_emulation (int opcode)
1804 g_assert (opcode >= 0 && opcode <= OP_LAST);
1805 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1807 for (i = 0; i < emul_opcode_num; ++i) {
1808 if (emul_opcode_opcodes [i] == opcode)
1809 return emul_opcode_map [i];
1816 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1818 MonoJitICallInfo *info;
1819 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1821 g_assert (!sig->hasthis);
1822 g_assert (sig->param_count < 3);
1824 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1825 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1827 if (emul_opcode_num >= emul_opcode_alloced) {
1828 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1829 emul_opcode_alloced += incr;
1830 emul_opcode_map = (MonoJitICallInfo **)g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1831 emul_opcode_opcodes = (short *)g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1833 emul_opcode_map [emul_opcode_num] = info;
1834 emul_opcode_opcodes [emul_opcode_num] = opcode;
1836 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1840 print_dfn (MonoCompile *cfg)
1848 char *method_name = mono_method_full_name (cfg->method, TRUE);
1849 g_print ("IR code for method %s\n", method_name);
1850 g_free (method_name);
1853 for (i = 0; i < cfg->num_bblocks; ++i) {
1854 bb = cfg->bblocks [i];
1855 /*if (bb->cil_code) {
1856 char* code1, *code2;
1857 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1858 if (bb->last_ins->cil_code)
1859 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1861 code2 = g_strdup ("");
1863 code1 [strlen (code1) - 1] = 0;
1864 code = g_strdup_printf ("%s -> %s", code1, code2);
1868 code = g_strdup ("\n");
1869 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1870 MONO_BB_FOR_EACH_INS (bb, c) {
1871 mono_print_ins_index (-1, c);
1874 g_print ("\tprev:");
1875 for (j = 0; j < bb->in_count; ++j) {
1876 g_print (" BB%d", bb->in_bb [j]->block_num);
1878 g_print ("\t\tsucc:");
1879 for (j = 0; j < bb->out_count; ++j) {
1880 g_print (" BB%d", bb->out_bb [j]->block_num);
1882 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1885 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1888 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1890 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1898 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1900 MONO_ADD_INS (bb, inst);
1904 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1908 bb->code = ins_to_insert;
1910 /* Link with next */
1911 ins_to_insert->next = ins;
1913 ins->prev = ins_to_insert;
1915 if (bb->last_ins == NULL)
1916 bb->last_ins = ins_to_insert;
1918 /* Link with next */
1919 ins_to_insert->next = ins->next;
1921 ins->next->prev = ins_to_insert;
1923 /* Link with previous */
1924 ins->next = ins_to_insert;
1925 ins_to_insert->prev = ins;
1927 if (bb->last_ins == ins)
1928 bb->last_ins = ins_to_insert;
1933 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1938 ins->prev = ins_to_insert;
1939 bb->code = ins_to_insert;
1940 ins_to_insert->next = ins;
1941 if (bb->last_ins == NULL)
1942 bb->last_ins = ins_to_insert;
1944 /* Link with previous */
1946 ins->prev->next = ins_to_insert;
1947 ins_to_insert->prev = ins->prev;
1949 /* Link with next */
1950 ins->prev = ins_to_insert;
1951 ins_to_insert->next = ins;
1953 if (bb->code == ins)
1954 bb->code = ins_to_insert;
1959 * mono_verify_bblock:
1961 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1964 mono_verify_bblock (MonoBasicBlock *bb)
1966 MonoInst *ins, *prev;
1969 for (ins = bb->code; ins; ins = ins->next) {
1970 g_assert (ins->prev == prev);
1974 g_assert (!bb->last_ins->next);
1980 * Perform consistency checks on the JIT data structures and the IR
1983 mono_verify_cfg (MonoCompile *cfg)
1987 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
1988 mono_verify_bblock (bb);
1992 mono_destroy_compile (MonoCompile *cfg)
1997 mono_metadata_free_mh (cfg->header);
1998 //mono_mempool_stats (cfg->mempool);
1999 mono_free_loop_info (cfg);
2001 mono_regstate_free (cfg->rs);
2003 g_hash_table_destroy (cfg->spvars);
2005 g_hash_table_destroy (cfg->exvars);
2006 for (l = cfg->headers_to_free; l; l = l->next)
2007 mono_metadata_free_mh ((MonoMethodHeader *)l->data);
2008 g_list_free (cfg->ldstr_list);
2009 g_hash_table_destroy (cfg->token_info_hash);
2010 if (cfg->abs_patches)
2011 g_hash_table_destroy (cfg->abs_patches);
2012 mono_mempool_destroy (cfg->mempool);
2014 mono_debug_free_method (cfg);
2016 g_free (cfg->varinfo);
2018 g_free (cfg->exception_message);
2023 mono_create_tls_get_offset (MonoCompile *cfg, int offset)
2027 if (!cfg->backend->have_tls_get)
2033 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2034 ins->dreg = mono_alloc_preg (cfg);
2035 ins->inst_offset = offset;
2040 mini_tls_get_supported (MonoCompile *cfg, MonoTlsKey key)
2042 if (!cfg->backend->have_tls_get)
2045 if (cfg->compile_aot)
2046 return cfg->backend->have_tls_get_reg;
2048 return mini_get_tls_offset (key) != -1;
2052 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
2054 if (!cfg->backend->have_tls_get)
2058 * TLS offsets might be different at AOT time, so load them from a GOT slot and
2059 * use a different opcode.
2061 if (cfg->compile_aot) {
2062 if (cfg->backend->have_tls_get_reg) {
2065 EMIT_NEW_TLS_OFFSETCONST (cfg, c, key);
2066 MONO_INST_NEW (cfg, ins, OP_TLS_GET_REG);
2067 ins->dreg = mono_alloc_preg (cfg);
2068 ins->sreg1 = c->dreg;
2075 return mono_create_tls_get_offset (cfg, mini_get_tls_offset (key));
2079 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2081 return mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
2085 mono_get_domain_intrinsic (MonoCompile* cfg)
2087 return mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
2091 mono_get_thread_intrinsic (MonoCompile* cfg)
2093 return mono_create_tls_get (cfg, TLS_KEY_THREAD);
2097 mono_get_lmf_intrinsic (MonoCompile* cfg)
2099 return mono_create_tls_get (cfg, TLS_KEY_LMF);
2103 mono_get_lmf_addr_intrinsic (MonoCompile* cfg)
2105 return mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
2109 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2111 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2115 ji->data.target = target;
2116 ji->next = cfg->patch_info;
2118 cfg->patch_info = ji;
2122 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
2124 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2128 ji->relocation = relocation;
2129 ji->data.target = target;
2130 ji->next = cfg->patch_info;
2132 cfg->patch_info = ji;
2136 mono_remove_patch_info (MonoCompile *cfg, int ip)
2138 MonoJumpInfo **ji = &cfg->patch_info;
2141 if ((*ji)->ip.i == ip)
2144 ji = &((*ji)->next);
2149 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2151 ins->inst_offset = native_offset;
2152 g_ptr_array_add (cfg->seq_points, ins);
2154 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2155 bb->last_seq_point = ins;
2160 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2162 MonoDwarfLocListEntry *entry = (MonoDwarfLocListEntry *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2165 g_assert (offset == 0);
2167 entry->is_reg = is_reg;
2169 entry->offset = offset;
2173 if (var == cfg->args [0])
2174 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2175 else if (var == cfg->rgctx_var)
2176 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2180 mono_compile_create_vars (MonoCompile *cfg)
2182 MonoMethodSignature *sig;
2183 MonoMethodHeader *header;
2186 header = cfg->header;
2188 sig = mono_method_signature (cfg->method);
2190 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2191 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2192 /* Inhibit optimizations */
2193 cfg->ret->flags |= MONO_INST_VOLATILE;
2195 if (cfg->verbose_level > 2)
2196 g_print ("creating vars\n");
2198 cfg->args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2201 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2203 for (i = 0; i < sig->param_count; ++i) {
2204 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2207 if (cfg->verbose_level > 2) {
2209 printf ("\treturn : ");
2210 mono_print_ins (cfg->ret);
2214 printf ("\tthis: ");
2215 mono_print_ins (cfg->args [0]);
2218 for (i = 0; i < sig->param_count; ++i) {
2219 printf ("\targ [%d]: ", i);
2220 mono_print_ins (cfg->args [i + sig->hasthis]);
2224 cfg->locals_start = cfg->num_varinfo;
2225 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2227 if (cfg->verbose_level > 2)
2228 g_print ("creating locals\n");
2230 for (i = 0; i < header->num_locals; ++i)
2231 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2233 if (cfg->verbose_level > 2)
2234 g_print ("locals done\n");
2237 if (COMPILE_LLVM (cfg))
2238 mono_llvm_create_vars (cfg);
2240 mono_arch_create_vars (cfg);
2242 mono_arch_create_vars (cfg);
2245 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2246 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2247 lmf_var->flags |= MONO_INST_VOLATILE;
2248 lmf_var->flags |= MONO_INST_LMF;
2249 cfg->lmf_var = lmf_var;
2254 mono_print_code (MonoCompile *cfg, const char* msg)
2258 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2259 mono_print_bb (bb, msg);
2263 mono_postprocess_patches (MonoCompile *cfg)
2265 MonoJumpInfo *patch_info;
2268 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2269 switch (patch_info->type) {
2270 case MONO_PATCH_INFO_ABS: {
2271 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2274 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2278 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2279 /* for these array methods we currently register the same function pointer
2280 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2281 * will return the incorrect one depending on the order they are registered.
2282 * See tests/test-arr.cs
2284 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2285 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2286 patch_info->data.name = info->name;
2290 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2291 if (cfg->abs_patches) {
2292 MonoJumpInfo *abs_ji = (MonoJumpInfo *)g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2294 patch_info->type = abs_ji->type;
2295 patch_info->data.target = abs_ji->data.target;
2302 case MONO_PATCH_INFO_SWITCH: {
2304 #if defined(__native_client__) && defined(__native_client_codegen__)
2305 /* This memory will leak. */
2306 /* TODO: can we free this when */
2307 /* making the final jump table? */
2308 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2310 if (cfg->method->dynamic) {
2311 table = (void **)mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2313 table = (void **)mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2317 for (i = 0; i < patch_info->data.table->table_size; i++) {
2318 /* Might be NULL if the switch is eliminated */
2319 if (patch_info->data.table->table [i]) {
2320 g_assert (patch_info->data.table->table [i]->native_offset);
2321 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2326 patch_info->data.table->table = (MonoBasicBlock**)table;
2329 case MONO_PATCH_INFO_METHOD_JUMP: {
2330 MonoJumpList *jlist;
2331 MonoDomain *domain = cfg->domain;
2332 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2333 #if defined(__native_client__) && defined(__native_client_codegen__)
2334 /* When this jump target gets evaluated, the method */
2335 /* will be installed in the dynamic code section, */
2336 /* not at the location of cfg->native_code. */
2337 ip = nacl_inverse_modify_patch_target (cfg->native_code) + patch_info->ip.i;
2340 mono_domain_lock (domain);
2341 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2343 jlist = (MonoJumpList *)mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2344 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2346 jlist->list = g_slist_prepend (jlist->list, ip);
2347 mono_domain_unlock (domain);
2358 mono_codegen (MonoCompile *cfg)
2361 int max_epilog_size;
2363 MonoDomain *code_domain;
2364 guint unwindlen = 0;
2366 if (mono_using_xdebug)
2368 * Recent gdb versions have trouble processing symbol files containing
2369 * overlapping address ranges, so allocate all code from the code manager
2370 * of the root domain. (#666152).
2372 code_domain = mono_get_root_domain ();
2374 code_domain = cfg->domain;
2376 #if defined(__native_client_codegen__) && defined(__native_client__)
2379 /* This keeps patch targets from being transformed during
2380 * ordinary method compilation, for local branches and jumps.
2382 nacl_allow_target_modification (FALSE);
2385 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2386 cfg->spill_count = 0;
2387 /* we reuse dfn here */
2388 /* bb->dfn = bb_count++; */
2390 mono_arch_lowering_pass (cfg, bb);
2392 if (cfg->opt & MONO_OPT_PEEPHOLE)
2393 mono_arch_peephole_pass_1 (cfg, bb);
2395 mono_local_regalloc (cfg, bb);
2397 if (cfg->opt & MONO_OPT_PEEPHOLE)
2398 mono_arch_peephole_pass_2 (cfg, bb);
2400 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2401 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2404 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2405 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2407 code = mono_arch_emit_prolog (cfg);
2409 cfg->code_len = code - cfg->native_code;
2410 cfg->prolog_end = cfg->code_len;
2411 cfg->cfa_reg = cfg->cur_cfa_reg;
2412 cfg->cfa_offset = cfg->cur_cfa_offset;
2414 mono_debug_open_method (cfg);
2416 /* emit code all basic blocks */
2417 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2418 bb->native_offset = cfg->code_len;
2419 bb->real_native_offset = cfg->code_len;
2420 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2421 mono_arch_output_basic_block (cfg, bb);
2422 bb->native_length = cfg->code_len - bb->native_offset;
2424 if (bb == cfg->bb_exit) {
2425 cfg->epilog_begin = cfg->code_len;
2426 mono_arch_emit_epilog (cfg);
2427 cfg->epilog_end = cfg->code_len;
2431 #ifdef __native_client_codegen__
2432 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2434 mono_arch_emit_exceptions (cfg);
2436 max_epilog_size = 0;
2438 /* we always allocate code in cfg->domain->code_mp to increase locality */
2439 cfg->code_size = cfg->code_len + max_epilog_size;
2440 #ifdef __native_client_codegen__
2441 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
2443 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2445 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2446 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2449 if (cfg->method->dynamic) {
2450 /* Allocate the code into a separate memory pool so it can be freed */
2451 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2452 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2453 mono_domain_lock (cfg->domain);
2454 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2455 mono_domain_unlock (cfg->domain);
2457 if (mono_using_xdebug)
2458 /* See the comment for cfg->code_domain */
2459 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2461 code = (guint8 *)mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2463 code = (guint8 *)mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2465 #if defined(__native_client_codegen__) && defined(__native_client__)
2466 nacl_allow_target_modification (TRUE);
2468 if (cfg->thunk_area) {
2469 cfg->thunks_offset = cfg->code_size + unwindlen;
2470 cfg->thunks = code + cfg->thunks_offset;
2471 memset (cfg->thunks, 0, cfg->thunk_area);
2475 memcpy (code, cfg->native_code, cfg->code_len);
2476 #if defined(__default_codegen__)
2477 g_free (cfg->native_code);
2478 #elif defined(__native_client_codegen__)
2479 if (cfg->native_code_alloc) {
2480 g_free (cfg->native_code_alloc);
2481 cfg->native_code_alloc = 0;
2483 else if (cfg->native_code) {
2484 g_free (cfg->native_code);
2486 #endif /* __native_client_codegen__ */
2487 cfg->native_code = code;
2488 code = cfg->native_code + cfg->code_len;
2490 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2491 mono_postprocess_patches (cfg);
2493 #ifdef VALGRIND_JIT_REGISTER_MAP
2494 if (valgrind_register){
2495 char* nm = mono_method_full_name (cfg->method, TRUE);
2496 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2501 if (cfg->verbose_level > 0) {
2502 char* nm = mono_method_get_full_name (cfg->method);
2503 char *opt_descr = mono_opt_descr (cfg->opt);
2504 g_print ("Method %s emitted at %p to %p (code length %d) [%s] with opts %s\n",
2506 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name,
2513 gboolean is_generic = FALSE;
2515 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2516 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
2521 g_assert (is_generic);
2524 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2525 mono_arch_save_unwind_info (cfg);
2528 #if defined(__native_client_codegen__) && defined(__native_client__)
2529 if (!cfg->compile_aot) {
2530 if (cfg->method->dynamic) {
2531 code_dest = nacl_code_manager_get_code_dest(cfg->dynamic_info->code_mp, cfg->native_code);
2533 code_dest = nacl_domain_get_code_dest(cfg->domain, cfg->native_code);
2538 #if defined(__native_client_codegen__)
2539 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2542 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2547 for (ji = cfg->patch_info; ji; ji = ji->next) {
2548 if (cfg->compile_aot) {
2550 case MONO_PATCH_INFO_BB:
2551 case MONO_PATCH_INFO_LABEL:
2554 /* No need to patch these */
2559 if (ji->type == MONO_PATCH_INFO_NONE)
2562 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors, &cfg->error);
2563 if (!mono_error_ok (&cfg->error)) {
2564 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
2567 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2571 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
2574 if (cfg->method->dynamic) {
2575 if (mono_using_xdebug)
2576 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2578 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2580 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2582 #if defined(__native_client_codegen__) && defined(__native_client__)
2583 cfg->native_code = code_dest;
2585 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2587 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2589 mono_debug_close_method (cfg);
2591 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2592 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2597 compute_reachable (MonoBasicBlock *bb)
2601 if (!(bb->flags & BB_VISITED)) {
2602 bb->flags |= BB_VISITED;
2603 for (i = 0; i < bb->out_count; ++i)
2604 compute_reachable (bb->out_bb [i]);
2608 static void mono_bb_ordering (MonoCompile *cfg)
2611 /* Depth-first ordering on basic blocks */
2612 cfg->bblocks = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
2614 cfg->max_block_num = cfg->num_bblocks;
2616 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
2617 if (cfg->num_bblocks != dfn + 1) {
2620 cfg->num_bblocks = dfn + 1;
2622 /* remove unreachable code, because the code in them may be
2623 * inconsistent (access to dead variables for example) */
2624 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2625 bb->flags &= ~BB_VISITED;
2626 compute_reachable (cfg->bb_entry);
2627 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2628 if (bb->flags & BB_EXCEPTION_HANDLER)
2629 compute_reachable (bb);
2630 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2631 if (!(bb->flags & BB_VISITED)) {
2632 if (cfg->verbose_level > 1)
2633 g_print ("found unreachable code in BB%d\n", bb->block_num);
2634 bb->code = bb->last_ins = NULL;
2635 while (bb->out_count)
2636 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
2639 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2640 bb->flags &= ~BB_VISITED;
2645 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2648 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2649 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2651 MONO_INST_NEW (cfg, ins, OP_BR);
2652 MONO_ADD_INS (bb, ins);
2653 ins->inst_target_bb = bb->next_bb;
2659 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2662 MonoMethodHeader *header;
2664 MonoJitInfoFlags flags = JIT_INFO_NONE;
2665 int num_clauses, num_holes = 0;
2666 guint32 stack_size = 0;
2668 g_assert (method_to_compile == cfg->method);
2669 header = cfg->header;
2672 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_GENERIC_JIT_INFO);
2674 if (cfg->arch_eh_jit_info) {
2675 MonoJitArgumentInfo *arg_info;
2676 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2679 * This cannot be computed during stack walking, as
2680 * mono_arch_get_argument_info () is not signal safe.
2682 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2683 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2686 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2689 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2690 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_ARCH_EH_INFO);
2692 if (cfg->thunk_area)
2693 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_THUNK_INFO);
2695 if (cfg->try_block_holes) {
2696 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2697 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2698 MonoExceptionClause *ec = hole->clause;
2699 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2700 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2701 g_assert (clause_last_bb);
2703 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2704 if (clause_last_bb->native_offset != hole_end)
2708 flags = (MonoJitInfoFlags)(flags | JIT_INFO_HAS_TRY_BLOCK_HOLES);
2709 if (G_UNLIKELY (cfg->verbose_level >= 4))
2710 printf ("Number of try block holes %d\n", num_holes);
2713 if (COMPILE_LLVM (cfg))
2714 num_clauses = cfg->llvm_ex_info_len;
2716 num_clauses = header->num_clauses;
2718 if (cfg->method->dynamic)
2719 jinfo = (MonoJitInfo *)g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2721 jinfo = (MonoJitInfo *)mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2722 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2723 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2725 if (COMPILE_LLVM (cfg))
2726 jinfo->from_llvm = TRUE;
2730 MonoGenericJitInfo *gi;
2731 GSList *loclist = NULL;
2733 gi = mono_jit_info_get_generic_jit_info (jinfo);
2736 if (cfg->method->dynamic)
2737 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2739 gi->generic_sharing_context = (MonoGenericSharingContext *)mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2740 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2742 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2743 mini_method_get_context (method_to_compile)->method_inst ||
2744 method_to_compile->klass->valuetype) {
2745 g_assert (cfg->rgctx_var);
2750 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2751 mini_method_get_context (method_to_compile)->method_inst ||
2752 method_to_compile->klass->valuetype) {
2753 inst = cfg->rgctx_var;
2754 if (!COMPILE_LLVM (cfg))
2755 g_assert (inst->opcode == OP_REGOFFSET);
2756 loclist = cfg->rgctx_loclist;
2758 inst = cfg->args [0];
2759 loclist = cfg->this_loclist;
2763 /* Needed to handle async exceptions */
2767 gi->nlocs = g_slist_length (loclist);
2768 if (cfg->method->dynamic)
2769 gi->locations = (MonoDwarfLocListEntry *)g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2771 gi->locations = (MonoDwarfLocListEntry *)mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2773 for (l = loclist; l; l = l->next) {
2774 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2779 if (COMPILE_LLVM (cfg)) {
2780 g_assert (cfg->llvm_this_reg != -1);
2781 gi->this_in_reg = 0;
2782 gi->this_reg = cfg->llvm_this_reg;
2783 gi->this_offset = cfg->llvm_this_offset;
2784 } else if (inst->opcode == OP_REGVAR) {
2785 gi->this_in_reg = 1;
2786 gi->this_reg = inst->dreg;
2788 g_assert (inst->opcode == OP_REGOFFSET);
2790 g_assert (inst->inst_basereg == X86_EBP);
2791 #elif defined(TARGET_AMD64)
2792 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2794 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2796 gi->this_in_reg = 0;
2797 gi->this_reg = inst->inst_basereg;
2798 gi->this_offset = inst->inst_offset;
2803 MonoTryBlockHoleTableJitInfo *table;
2806 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2807 table->num_holes = (guint16)num_holes;
2809 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2810 guint32 start_bb_offset;
2811 MonoTryBlockHoleJitInfo *hole;
2812 TryBlockHole *hole_data = (TryBlockHole *)tmp->data;
2813 MonoExceptionClause *ec = hole_data->clause;
2814 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2815 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2816 g_assert (clause_last_bb);
2818 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2819 if (clause_last_bb->native_offset == hole_end)
2822 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2823 hole = &table->holes [i++];
2824 hole->clause = hole_data->clause - &header->clauses [0];
2825 hole->offset = (guint32)hole_data->start_offset;
2826 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2828 if (G_UNLIKELY (cfg->verbose_level >= 4))
2829 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2831 g_assert (i == num_holes);
2834 if (jinfo->has_arch_eh_info) {
2835 MonoArchEHJitInfo *info;
2837 info = mono_jit_info_get_arch_eh_info (jinfo);
2839 info->stack_size = stack_size;
2842 if (cfg->thunk_area) {
2843 MonoThunkJitInfo *info;
2845 info = mono_jit_info_get_thunk_info (jinfo);
2846 info->thunks_offset = cfg->thunks_offset;
2847 info->thunks_size = cfg->thunk_area;
2850 if (COMPILE_LLVM (cfg)) {
2852 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2853 } else if (header->num_clauses) {
2856 for (i = 0; i < header->num_clauses; i++) {
2857 MonoExceptionClause *ec = &header->clauses [i];
2858 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2859 MonoBasicBlock *tblock;
2860 MonoInst *exvar, *spvar;
2862 ei->flags = ec->flags;
2864 if (G_UNLIKELY (cfg->verbose_level >= 4))
2865 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);
2868 * The spvars are needed by mono_arch_install_handler_block_guard ().
2870 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2873 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2874 spvar = mono_find_spvar_for_region (cfg, region);
2876 ei->exvar_offset = spvar->inst_offset;
2878 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2879 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2882 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2883 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2885 ei->data.filter = cfg->native_code + tblock->native_offset;
2887 ei->data.catch_class = ec->data.catch_class;
2890 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2892 g_assert (tblock->native_offset);
2893 ei->try_start = cfg->native_code + tblock->native_offset;
2894 if (tblock->extend_try_block) {
2896 * Extend the try block backwards to include parts of the previous call
2899 ei->try_start = (guint8*)ei->try_start - cfg->backend->monitor_enter_adjustment;
2901 if (ec->try_offset + ec->try_len < header->code_size)
2902 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2904 tblock = cfg->bb_exit;
2905 if (G_UNLIKELY (cfg->verbose_level >= 4))
2906 printf ("looking for end of try [%d, %d] -> %p (code size %d)\n", ec->try_offset, ec->try_len, tblock, header->code_size);
2908 if (!tblock->native_offset) {
2910 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2911 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2912 if (bb && bb->native_offset) {
2918 ei->try_end = cfg->native_code + tblock->native_offset;
2919 g_assert (tblock->native_offset);
2920 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2922 ei->handler_start = cfg->native_code + tblock->native_offset;
2924 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2925 TryBlockHole *hole = (TryBlockHole *)tmp->data;
2926 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2927 if (hole->clause == ec && hole_end == ei->try_end) {
2928 if (G_UNLIKELY (cfg->verbose_level >= 4))
2929 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2931 ei->try_end = cfg->native_code + hole->start_offset;
2936 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2938 if (ec->handler_offset + ec->handler_len < header->code_size) {
2939 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2940 if (tblock->native_offset) {
2941 end_offset = tblock->native_offset;
2945 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2946 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2947 if (bb && bb->native_offset) {
2952 end_offset = tblock->native_offset + tblock->native_length;
2955 end_offset = cfg->epilog_begin;
2957 ei->data.handler_end = cfg->native_code + end_offset;
2962 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2964 for (i = 0; i < jinfo->num_clauses; i++) {
2965 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2966 int start = (guint8*)ei->try_start - cfg->native_code;
2967 int end = (guint8*)ei->try_end - cfg->native_code;
2968 int handler = (guint8*)ei->handler_start - cfg->native_code;
2969 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2971 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2975 if (cfg->encoded_unwind_ops) {
2976 /* Generated by LLVM */
2977 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2978 g_free (cfg->encoded_unwind_ops);
2979 } else if (cfg->unwind_ops) {
2981 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2982 guint32 unwind_desc;
2984 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2986 if (cfg->has_unwind_info_for_epilog) {
2987 MonoArchEHJitInfo *info;
2989 info = mono_jit_info_get_arch_eh_info (jinfo);
2991 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2993 jinfo->unwind_info = unwind_desc;
2994 g_free (unwind_info);
2996 jinfo->unwind_info = cfg->used_int_regs;
3002 /* Return whenever METHOD is a gsharedvt method */
3004 is_gsharedvt_method (MonoMethod *method)
3006 MonoGenericContext *context;
3007 MonoGenericInst *inst;
3010 if (!method->is_inflated)
3012 context = mono_method_get_context (method);
3013 inst = context->class_inst;
3015 for (i = 0; i < inst->type_argc; ++i)
3016 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
3019 inst = context->method_inst;
3021 for (i = 0; i < inst->type_argc; ++i)
3022 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
3029 is_open_method (MonoMethod *method)
3031 MonoGenericContext *context;
3033 if (!method->is_inflated)
3035 context = mono_method_get_context (method);
3036 if (context->class_inst && context->class_inst->is_open)
3038 if (context->method_inst && context->method_inst->is_open)
3044 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
3046 MonoInst *poll_addr, *ins;
3048 if (cfg->disable_gc_safe_points)
3051 if (cfg->verbose_level > 1)
3052 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
3054 #if defined(__native_client_codegen__)
3055 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
3057 g_assert (mono_threads_is_coop_enabled ());
3058 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
3061 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
3062 ins->sreg1 = poll_addr->dreg;
3064 if (bblock->flags & BB_EXCEPTION_HANDLER) {
3065 MonoInst *eh_op = bblock->code;
3067 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
3070 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
3071 // skip all EH relateds ops
3072 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
3074 next_eh_op = eh_op->next;
3078 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
3079 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3080 } else if (bblock == cfg->bb_entry) {
3081 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
3082 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3085 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
3086 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3091 This code inserts safepoints into managed code at important code paths.
3094 -the first basic block
3095 -landing BB for exception handlers
3100 mono_insert_safepoints (MonoCompile *cfg)
3104 #if !defined(__native_client_codegen__)
3105 if (!mono_threads_is_coop_enabled ())
3109 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3110 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3111 #if defined(__native_client__) || defined(__native_client_codegen__)
3112 gpointer poll_func = &mono_nacl_gc;
3114 g_assert (mono_threads_is_coop_enabled ());
3115 gpointer poll_func = &mono_threads_state_poll;
3118 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER && info->d.icall.func == poll_func) {
3119 if (cfg->verbose_level > 1)
3120 printf ("SKIPPING SAFEPOINTS for the polling function icall\n");
3125 if (cfg->method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
3126 if (cfg->verbose_level > 1)
3127 printf ("SKIPPING SAFEPOINTS for native-to-managed wrappers.\n");
3131 if (cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3132 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
3134 if (info && info->subtype == WRAPPER_SUBTYPE_ICALL_WRAPPER &&
3135 (info->d.icall.func == mono_thread_interruption_checkpoint ||
3136 info->d.icall.func == mono_threads_exit_gc_safe_region_unbalanced)) {
3137 /* These wrappers are called from the wrapper for the polling function, leading to potential stack overflow */
3138 if (cfg->verbose_level > 1)
3139 printf ("SKIPPING SAFEPOINTS for wrapper %s\n", cfg->method->name);
3144 if (cfg->verbose_level > 1)
3145 printf ("INSERTING SAFEPOINTS\n");
3146 if (cfg->verbose_level > 2)
3147 mono_print_code (cfg, "BEFORE SAFEPOINTS");
3149 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3150 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
3151 mono_create_gc_safepoint (cfg, bb);
3154 if (cfg->verbose_level > 2)
3155 mono_print_code (cfg, "AFTER SAFEPOINTS");
3161 mono_insert_branches_between_bblocks (MonoCompile *cfg)
3165 /* Add branches between non-consecutive bblocks */
3166 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3167 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3168 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3169 /* we are careful when inverting, since bugs like #59580
3170 * could show up when dealing with NaNs.
3172 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3173 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3174 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3175 bb->last_ins->inst_false_bb = tmp;
3177 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3179 MonoInst *inst = (MonoInst *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3180 inst->opcode = OP_BR;
3181 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3182 mono_bblock_add_inst (bb, inst);
3187 if (cfg->verbose_level >= 4) {
3188 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3189 MonoInst *tree = bb->code;
3190 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3193 for (; tree; tree = tree->next) {
3194 mono_print_ins_index (-1, tree);
3200 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3201 bb->max_vreg = cfg->next_vreg;
3206 init_backend (MonoBackend *backend)
3208 #ifdef MONO_ARCH_NEED_GOT_VAR
3209 backend->need_got_var = 1;
3211 #ifdef MONO_ARCH_HAVE_CARD_TABLE_WBARRIER
3212 backend->have_card_table_wb = 1;
3214 #ifdef MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT
3215 backend->have_op_generic_class_init = 1;
3217 #ifdef MONO_ARCH_EMULATE_MUL_DIV
3218 backend->emulate_mul_div = 1;
3220 #ifdef MONO_ARCH_EMULATE_DIV
3221 backend->emulate_div = 1;
3223 #if !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
3224 backend->emulate_long_shift_opts = 1;
3226 #ifdef MONO_ARCH_HAVE_OBJC_GET_SELECTOR
3227 backend->have_objc_get_selector = 1;
3229 #ifdef MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK
3230 backend->have_generalized_imt_thunk = 1;
3232 #ifdef MONO_ARCH_GSHARED_SUPPORTED
3233 backend->gshared_supported = 1;
3235 if (MONO_ARCH_HAVE_TLS_GET)
3236 backend->have_tls_get = 1;
3237 #ifdef MONO_ARCH_HAVE_TLS_GET_REG
3238 backend->have_tls_get_reg = 1;
3240 if (MONO_ARCH_USE_FPSTACK)
3241 backend->use_fpstack = 1;
3242 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3243 backend->have_liverange_ops = 1;
3245 #ifdef MONO_ARCH_HAVE_OP_TAIL_CALL
3246 backend->have_op_tail_call = 1;
3248 #ifndef MONO_ARCH_MONITOR_ENTER_ADJUSTMENT
3249 backend->monitor_enter_adjustment = 1;
3251 backend->monitor_enter_adjustment = MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
3253 #if defined(__mono_ilp32__)
3256 #ifdef MONO_ARCH_HAVE_DUMMY_INIT
3257 backend->have_dummy_init = 1;
3259 #ifdef MONO_ARCH_NEED_DIV_CHECK
3260 backend->need_div_check = 1;
3262 #ifdef NO_UNALIGNED_ACCESS
3263 backend->no_unaligned_access = 1;
3265 #ifdef MONO_ARCH_DYN_CALL_PARAM_AREA
3266 backend->dyn_call_param_area = MONO_ARCH_DYN_CALL_PARAM_AREA;
3271 * mini_method_compile:
3272 * @method: the method to compile
3273 * @opts: the optimization flags to use
3274 * @domain: the domain where the method will be compiled in
3275 * @flags: compilation flags
3276 * @parts: debug flag
3278 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3279 * field in the returned struct to see if compilation succeded.
3282 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3284 MonoMethodHeader *header;
3285 MonoMethodSignature *sig;
3288 int i, code_size_ratio;
3289 gboolean try_generic_shared, try_llvm = FALSE;
3290 MonoMethod *method_to_compile, *method_to_register;
3291 gboolean method_is_gshared = FALSE;
3292 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3293 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3294 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3295 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3296 gboolean gsharedvt_method = FALSE;
3298 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3300 static gboolean verbose_method_inited;
3301 static const char *verbose_method_name;
3303 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3304 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3305 mono_profiler_method_jit (method);
3306 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3307 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3309 gsharedvt_method = is_gsharedvt_method (method);
3312 * In AOT mode, method can be the following:
3313 * - a gsharedvt method.
3314 * - a method inflated with type parameters. This is for ref/partial sharing.
3315 * - a method inflated with concrete types.
3318 if (is_open_method (method)) {
3319 try_generic_shared = TRUE;
3320 method_is_gshared = TRUE;
3322 try_generic_shared = FALSE;
3324 g_assert (opts & MONO_OPT_GSHARED);
3326 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3327 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3328 if (mini_is_gsharedvt_sharable_method (method)) {
3330 if (!mono_debug_count ())
3331 try_generic_shared = FALSE;
3337 if (try_generic_shared && !mono_debug_count ())
3338 try_generic_shared = FALSE;
3341 if (opts & MONO_OPT_GSHARED) {
3342 if (try_generic_shared)
3343 mono_stats.generics_sharable_methods++;
3344 else if (mono_method_is_generic_impl (method))
3345 mono_stats.generics_unsharable_methods++;
3349 try_llvm = mono_use_llvm || llvm;
3353 if (method_is_gshared) {
3354 method_to_compile = method;
3356 if (try_generic_shared) {
3357 method_to_compile = mini_get_shared_method (method);
3358 g_assert (method_to_compile);
3360 method_to_compile = method;
3364 cfg = g_new0 (MonoCompile, 1);
3365 cfg->method = method_to_compile;
3366 cfg->mempool = mono_mempool_new ();
3368 cfg->prof_options = mono_profiler_get_events ();
3369 cfg->run_cctors = run_cctors;
3370 cfg->domain = domain;
3371 cfg->verbose_level = mini_verbose;
3372 cfg->compile_aot = compile_aot;
3373 cfg->full_aot = full_aot;
3374 cfg->disable_omit_fp = debug_options.disable_omit_fp;
3375 cfg->skip_visibility = method->skip_visibility;
3376 cfg->orig_method = method;
3377 cfg->gen_seq_points = debug_options.gen_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3378 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3379 cfg->llvm_only = (flags & JIT_FLAG_LLVM_ONLY) != 0;
3380 cfg->backend = current_backend;
3382 #ifdef PLATFORM_ANDROID
3383 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3384 /* FIXME: Why is this needed */
3385 cfg->gen_seq_points = FALSE;
3386 cfg->gen_sdb_seq_points = FALSE;
3389 /* coop / nacl requires loop detection to happen */
3390 #if defined(__native_client_codegen__)
3391 cfg->opt |= MONO_OPT_LOOP;
3393 if (mono_threads_is_coop_enabled ())
3394 cfg->opt |= MONO_OPT_LOOP;
3396 cfg->explicit_null_checks = debug_options.explicit_null_checks || (flags & JIT_FLAG_EXPLICIT_NULL_CHECKS);
3397 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3398 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3399 cfg->disable_direct_icalls = disable_direct_icalls;
3400 if (try_generic_shared)
3401 cfg->gshared = TRUE;
3402 cfg->compile_llvm = try_llvm;
3403 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3404 if (cfg->compile_aot)
3405 cfg->method_index = aot_method_index;
3408 if (!mono_debug_count ())
3409 cfg->opt &= ~MONO_OPT_FLOAT32;
3412 cfg->opt &= ~MONO_OPT_SIMD;
3413 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3414 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3416 if (cfg->gen_seq_points)
3417 cfg->seq_points = g_ptr_array_new ();
3418 mono_error_init (&cfg->error);
3420 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container || method_is_gshared)) {
3421 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3425 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3426 MonoMethodInflated *inflated;
3427 MonoGenericContext *context;
3429 if (gsharedvt_method) {
3430 g_assert (method->is_inflated);
3431 inflated = (MonoMethodInflated*)method;
3432 context = &inflated->context;
3434 /* We are compiling a gsharedvt method directly */
3435 g_assert (compile_aot);
3437 g_assert (method_to_compile->is_inflated);
3438 inflated = (MonoMethodInflated*)method_to_compile;
3439 context = &inflated->context;
3442 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3443 cfg->gsctx_context = context;
3445 cfg->gsharedvt = TRUE;
3446 if (!cfg->llvm_only) {
3447 cfg->disable_llvm = TRUE;
3448 cfg->exception_message = g_strdup ("gsharedvt");
3453 method_to_register = method_to_compile;
3455 g_assert (method == method_to_compile);
3456 method_to_register = method;
3458 cfg->method_to_register = method_to_register;
3460 mono_error_init (&err);
3461 sig = mono_method_signature_checked (cfg->method, &err);
3463 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3464 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3465 mono_error_cleanup (&err);
3466 if (MONO_METHOD_COMPILE_END_ENABLED ())
3467 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3471 header = cfg->header = mono_method_get_header_checked (cfg->method, &cfg->error);
3473 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
3474 if (MONO_METHOD_COMPILE_END_ENABLED ())
3475 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3481 static gboolean inited;
3487 * Check for methods which cannot be compiled by LLVM early, to avoid
3488 * the extra compilation pass.
3490 if (COMPILE_LLVM (cfg)) {
3491 mono_llvm_check_method_supported (cfg);
3492 if (cfg->disable_llvm) {
3493 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3494 //nm = mono_method_full_name (cfg->method, TRUE);
3495 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3498 if (cfg->llvm_only) {
3499 cfg->disable_aot = TRUE;
3502 mono_destroy_compile (cfg);
3504 goto restart_compile;
3510 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3511 if (debug_options.mdb_optimizations) {
3512 cfg->disable_reuse_registers = TRUE;
3513 cfg->disable_reuse_stack_slots = TRUE;
3515 * This decreases the change the debugger will read registers/stack slots which are
3516 * not yet initialized.
3518 cfg->disable_initlocals_opt = TRUE;
3520 cfg->extend_live_ranges = TRUE;
3522 /* The debugger needs all locals to be on the stack or in a global register */
3523 cfg->disable_vreg_to_lvreg = TRUE;
3525 /* Don't remove unused variables when running inside the debugger since the user
3526 * may still want to view them. */
3527 cfg->disable_deadce_vars = TRUE;
3529 cfg->opt &= ~MONO_OPT_DEADCE;
3530 cfg->opt &= ~MONO_OPT_INLINE;
3531 cfg->opt &= ~MONO_OPT_COPYPROP;
3532 cfg->opt &= ~MONO_OPT_CONSPROP;
3534 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3535 cfg->disable_out_of_line_bblocks = TRUE;
3538 if (mono_using_xdebug) {
3540 * Make each variable use its own register/stack slot and extend
3541 * their liveness to cover the whole method, making them displayable
3542 * in gdb even after they are dead.
3544 cfg->disable_reuse_registers = TRUE;
3545 cfg->disable_reuse_stack_slots = TRUE;
3546 cfg->extend_live_ranges = TRUE;
3547 cfg->compute_precise_live_ranges = TRUE;
3550 mini_gc_init_cfg (cfg);
3552 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
3553 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
3555 /* These wrappers are using linkonce linkage, so they can't access GOT slots */
3556 if ((info && (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN_SIG || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT_SIG))) {
3557 cfg->disable_gc_safe_points = TRUE;
3558 /* This is safe, these wrappers only store to the stack */
3559 cfg->gen_write_barriers = FALSE;
3563 if (COMPILE_LLVM (cfg)) {
3564 cfg->opt |= MONO_OPT_ABCREM;
3567 if (!verbose_method_inited) {
3568 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3569 verbose_method_inited = TRUE;
3571 if (verbose_method_name) {
3572 const char *name = verbose_method_name;
3574 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3575 MonoMethodDesc *desc;
3577 desc = mono_method_desc_new (name, TRUE);
3578 if (mono_method_desc_full_match (desc, cfg->method)) {
3579 cfg->verbose_level = 4;
3581 mono_method_desc_free (desc);
3583 if (strcmp (cfg->method->name, name) == 0)
3584 cfg->verbose_level = 4;
3588 cfg->intvars = (guint16 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3590 if (cfg->verbose_level > 0) {
3593 method_name = mono_method_get_full_name (method);
3594 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3596 if (COMPILE_LLVM (cfg))
3597 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3598 else if (cfg->gsharedvt)
3599 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3600 else if (cfg->gshared)
3601 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3603 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3605 g_free (method_name);
3608 if (cfg->opt & MONO_OPT_ABCREM)
3609 cfg->opt |= MONO_OPT_SSA;
3611 cfg->rs = mono_regstate_new ();
3612 cfg->next_vreg = cfg->rs->next_vreg;
3614 /* FIXME: Fix SSA to handle branches inside bblocks */
3615 if (cfg->opt & MONO_OPT_SSA)
3616 cfg->enable_extended_bblocks = FALSE;
3619 * FIXME: This confuses liveness analysis because variables which are assigned after
3620 * a branch inside a bblock become part of the kill set, even though the assignment
3621 * might not get executed. This causes the optimize_initlocals pass to delete some
3622 * assignments which are needed.
3623 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3626 //cfg->enable_extended_bblocks = TRUE;
3628 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3629 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3630 if (mini_get_debug_options ()->break_on_unverified)
3636 * create MonoInst* which represents arguments and local variables
3638 mono_compile_create_vars (cfg);
3640 mono_cfg_dump_create_context (cfg);
3641 mono_cfg_dump_begin_group (cfg);
3643 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));
3644 mono_cfg_dump_ir (cfg, "method-to-ir");
3647 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3649 if (MONO_METHOD_COMPILE_END_ENABLED ())
3650 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3653 mono_destroy_compile (cfg);
3654 try_generic_shared = FALSE;
3655 goto restart_compile;
3657 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3659 if (MONO_METHOD_COMPILE_END_ENABLED ())
3660 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3661 /* cfg contains the details of the failure, so let the caller cleanup */
3665 cfg->stat_basic_blocks += cfg->num_bblocks;
3667 if (COMPILE_LLVM (cfg)) {
3670 /* The IR has to be in SSA form for LLVM */
3671 cfg->opt |= MONO_OPT_SSA;
3675 // Allow SSA on the result value
3676 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3678 // Add an explicit return instruction referencing the return value
3679 MONO_INST_NEW (cfg, ins, OP_SETRET);
3680 ins->sreg1 = cfg->ret->dreg;
3682 MONO_ADD_INS (cfg->bb_exit, ins);
3685 cfg->opt &= ~MONO_OPT_LINEARS;
3688 cfg->opt &= ~MONO_OPT_BRANCH;
3691 /* todo: remove code when we have verified that the liveness for try/catch blocks
3695 * Currently, this can't be commented out since exception blocks are not
3696 * processed during liveness analysis.
3697 * It is also needed, because otherwise the local optimization passes would
3698 * delete assignments in cases like this:
3700 * <something which throws>
3702 * This also allows SSA to be run on methods containing exception clauses, since
3703 * SSA will ignore variables marked VOLATILE.
3705 MONO_TIME_TRACK (mono_jit_stats.jit_liveness_handle_exception_clauses, mono_liveness_handle_exception_clauses (cfg));
3706 mono_cfg_dump_ir (cfg, "liveness_handle_exception_clauses");
3708 MONO_TIME_TRACK (mono_jit_stats.jit_handle_out_of_line_bblock, mono_handle_out_of_line_bblock (cfg));
3709 mono_cfg_dump_ir (cfg, "handle_out_of_line_bblock");
3711 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3713 if (!COMPILE_LLVM (cfg)) {
3714 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_long_opts, mono_decompose_long_opts (cfg));
3715 mono_cfg_dump_ir (cfg, "decompose_long_opts");
3718 /* Should be done before branch opts */
3719 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP)) {
3720 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop, mono_local_cprop (cfg));
3721 mono_cfg_dump_ir (cfg, "local_cprop");
3725 * Should be done after cprop which can do strength reduction on
3726 * some of these ops, after propagating immediates.
3728 if (cfg->has_emulated_ops) {
3729 MONO_TIME_TRACK (mono_jit_stats.jit_local_emulate_ops, mono_local_emulate_ops (cfg));
3730 mono_cfg_dump_ir (cfg, "local_emulate_ops");
3733 if (cfg->opt & MONO_OPT_BRANCH) {
3734 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches, mono_optimize_branches (cfg));
3735 mono_cfg_dump_ir (cfg, "optimize_branches");
3738 /* This must be done _before_ global reg alloc and _after_ decompose */
3739 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs, mono_handle_global_vregs (cfg));
3740 mono_cfg_dump_ir (cfg, "handle_global_vregs");
3741 if (cfg->opt & MONO_OPT_DEADCE) {
3742 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce, mono_local_deadce (cfg));
3743 mono_cfg_dump_ir (cfg, "local_deadce");
3745 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS) {
3746 MONO_TIME_TRACK (mono_jit_stats.jit_local_alias_analysis, mono_local_alias_analysis (cfg));
3747 mono_cfg_dump_ir (cfg, "local_alias_analysis");
3749 /* Disable this for LLVM to make the IR easier to handle */
3750 if (!COMPILE_LLVM (cfg)) {
3751 MONO_TIME_TRACK (mono_jit_stats.jit_if_conversion, mono_if_conversion (cfg));
3752 mono_cfg_dump_ir (cfg, "if_conversion");
3755 mono_threads_safepoint ();
3757 MONO_TIME_TRACK (mono_jit_stats.jit_bb_ordering, mono_bb_ordering (cfg));
3758 mono_cfg_dump_ir (cfg, "bb_ordering");
3760 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3762 * we disable some optimizations if there are too many variables
3763 * because JIT time may become too expensive. The actual number needs
3764 * to be tweaked and eventually the non-linear algorithms should be fixed.
3766 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3767 cfg->disable_ssa = TRUE;
3770 if (cfg->opt & MONO_OPT_LOOP) {
3771 MONO_TIME_TRACK (mono_jit_stats.jit_compile_dominator_info, mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM));
3772 MONO_TIME_TRACK (mono_jit_stats.jit_compute_natural_loops, mono_compute_natural_loops (cfg));
3775 MONO_TIME_TRACK (mono_jit_stats.jit_insert_safepoints, mono_insert_safepoints (cfg));
3776 mono_cfg_dump_ir (cfg, "insert_safepoints");
3778 /* after method_to_ir */
3780 if (MONO_METHOD_COMPILE_END_ENABLED ())
3781 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3786 if (header->num_clauses)
3787 cfg->disable_ssa = TRUE;
3790 //#define DEBUGSSA "logic_run"
3791 //#define DEBUGSSA_CLASS "Tests"
3794 if (!cfg->disable_ssa) {
3795 mono_local_cprop (cfg);
3798 mono_ssa_compute (cfg);
3802 if (cfg->opt & MONO_OPT_SSA) {
3803 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3805 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_compute, mono_ssa_compute (cfg));
3806 mono_cfg_dump_ir (cfg, "ssa_compute");
3809 if (cfg->verbose_level >= 2) {
3816 /* after SSA translation */
3818 if (MONO_METHOD_COMPILE_END_ENABLED ())
3819 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3823 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3824 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3826 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_cprop, mono_ssa_cprop (cfg));
3827 mono_cfg_dump_ir (cfg, "ssa_cprop");
3833 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3834 //mono_ssa_strength_reduction (cfg);
3836 if (cfg->opt & MONO_OPT_DEADCE) {
3837 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_deadce, mono_ssa_deadce (cfg));
3838 mono_cfg_dump_ir (cfg, "ssa_deadce");
3841 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM)) {
3842 MONO_TIME_TRACK (mono_jit_stats.jit_perform_abc_removal, mono_perform_abc_removal (cfg));
3843 mono_cfg_dump_ir (cfg, "perform_abc_removal");
3846 MONO_TIME_TRACK (mono_jit_stats.jit_ssa_remove, mono_ssa_remove (cfg));
3847 mono_cfg_dump_ir (cfg, "ssa_remove");
3848 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop2, mono_local_cprop (cfg));
3849 mono_cfg_dump_ir (cfg, "local_cprop2");
3850 MONO_TIME_TRACK (mono_jit_stats.jit_handle_global_vregs2, mono_handle_global_vregs (cfg));
3851 mono_cfg_dump_ir (cfg, "handle_global_vregs2");
3852 if (cfg->opt & MONO_OPT_DEADCE) {
3853 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce2, mono_local_deadce (cfg));
3854 mono_cfg_dump_ir (cfg, "local_deadce2");
3857 if (cfg->opt & MONO_OPT_BRANCH) {
3858 MONO_TIME_TRACK (mono_jit_stats.jit_optimize_branches2, mono_optimize_branches (cfg));
3859 mono_cfg_dump_ir (cfg, "optimize_branches2");
3864 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3865 mono_ssa_loop_invariant_code_motion (cfg);
3866 mono_cfg_dump_ir (cfg, "loop_invariant_code_motion");
3867 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3868 if (cfg->opt & MONO_OPT_ABCREM) {
3869 mono_perform_abc_removal (cfg);
3870 mono_cfg_dump_ir (cfg, "abc_removal");
3874 /* after SSA removal */
3876 if (MONO_METHOD_COMPILE_END_ENABLED ())
3877 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3881 if (cfg->llvm_only && cfg->gsharedvt)
3882 mono_ssa_remove_gsharedvt (cfg);
3884 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3885 if (COMPILE_SOFT_FLOAT (cfg))
3886 mono_decompose_soft_float (cfg);
3888 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_vtype_opts, mono_decompose_vtype_opts (cfg));
3889 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS) {
3890 MONO_TIME_TRACK (mono_jit_stats.jit_decompose_array_access_opts, mono_decompose_array_access_opts (cfg));
3891 mono_cfg_dump_ir (cfg, "decompose_array_access_opts");
3895 #ifndef MONO_ARCH_GOT_REG
3900 g_assert (cfg->got_var_allocated);
3903 * Allways allocate the GOT var to a register, because keeping it
3904 * in memory will increase the number of live temporaries in some
3905 * code created by inssel.brg, leading to the well known spills+
3906 * branches problem. Testcase: mcs crash in
3907 * System.MonoCustomAttrs:GetCustomAttributes.
3909 #ifdef MONO_ARCH_GOT_REG
3910 got_reg = MONO_ARCH_GOT_REG;
3912 regs = mono_arch_get_global_int_regs (cfg);
3914 got_reg = GPOINTER_TO_INT (regs->data);
3917 cfg->got_var->opcode = OP_REGVAR;
3918 cfg->got_var->dreg = got_reg;
3919 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3923 * Have to call this again to process variables added since the first call.
3925 MONO_TIME_TRACK(mono_jit_stats.jit_liveness_handle_exception_clauses2, mono_liveness_handle_exception_clauses (cfg));
3927 if (cfg->opt & MONO_OPT_LINEARS) {
3928 GList *vars, *regs, *l;
3930 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3931 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3932 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3933 MONO_TIME_TRACK (mono_jit_stats.jit_analyze_liveness, mono_analyze_liveness (cfg));
3935 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3936 regs = mono_arch_get_global_int_regs (cfg);
3937 /* Remove the reg reserved for holding the GOT address */
3939 for (l = regs; l; l = l->next) {
3940 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3941 regs = g_list_delete_link (regs, l);
3946 MONO_TIME_TRACK (mono_jit_stats.jit_linear_scan, mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs));
3947 mono_cfg_dump_ir (cfg, "linear_scan");
3951 //mono_print_code (cfg, "");
3955 /* variables are allocated after decompose, since decompose could create temps */
3956 if (!COMPILE_LLVM (cfg)) {
3957 MONO_TIME_TRACK (mono_jit_stats.jit_arch_allocate_vars, mono_arch_allocate_vars (cfg));
3958 mono_cfg_dump_ir (cfg, "arch_allocate_vars");
3959 if (cfg->exception_type)
3964 mono_allocate_gsharedvt_vars (cfg);
3966 if (!COMPILE_LLVM (cfg)) {
3967 gboolean need_local_opts;
3968 MONO_TIME_TRACK (mono_jit_stats.jit_spill_global_vars, mono_spill_global_vars (cfg, &need_local_opts));
3969 mono_cfg_dump_ir (cfg, "spill_global_vars");
3971 if (need_local_opts || cfg->compile_aot) {
3972 /* To optimize code created by spill_global_vars */
3973 MONO_TIME_TRACK (mono_jit_stats.jit_local_cprop3, mono_local_cprop (cfg));
3974 if (cfg->opt & MONO_OPT_DEADCE)
3975 MONO_TIME_TRACK (mono_jit_stats.jit_local_deadce3, mono_local_deadce (cfg));
3976 mono_cfg_dump_ir (cfg, "needs_local_opts");
3980 mono_insert_branches_between_bblocks (cfg);
3982 if (COMPILE_LLVM (cfg)) {
3986 /* The IR has to be in SSA form for LLVM */
3987 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3988 cfg->exception_message = g_strdup ("SSA disabled.");
3989 cfg->disable_llvm = TRUE;
3992 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3993 mono_decompose_array_access_opts (cfg);
3995 if (!cfg->disable_llvm)
3996 mono_llvm_emit_method (cfg);
3997 if (cfg->disable_llvm) {
3998 if (cfg->verbose_level >= (cfg->llvm_only ? 0 : 1)) {
3999 //nm = mono_method_full_name (cfg->method, TRUE);
4000 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
4003 if (cfg->llvm_only) {
4004 cfg->disable_aot = TRUE;
4007 mono_destroy_compile (cfg);
4009 goto restart_compile;
4012 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
4013 nm = mono_method_full_name (cfg->method, TRUE);
4014 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
4016 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
4021 MONO_TIME_TRACK (mono_jit_stats.jit_codegen, mono_codegen (cfg));
4022 mono_cfg_dump_ir (cfg, "codegen");
4023 if (cfg->exception_type)
4027 if (COMPILE_LLVM (cfg))
4028 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
4030 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
4032 MONO_TIME_TRACK (mono_jit_stats.jit_create_jit_info, cfg->jit_info = create_jit_info (cfg, method_to_compile));
4034 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
4035 if (cfg->extend_live_ranges) {
4036 /* Extend live ranges to cover the whole method */
4037 for (i = 0; i < cfg->num_varinfo; ++i)
4038 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
4042 if (!cfg->compile_aot)
4043 mono_save_xdebug_info (cfg);
4045 MONO_TIME_TRACK (mono_jit_stats.jit_gc_create_gc_map, mini_gc_create_gc_map (cfg));
4047 MONO_TIME_TRACK (mono_jit_stats.jit_save_seq_point_info, mono_save_seq_point_info (cfg));
4049 if (cfg->verbose_level >= 2) {
4050 char *id = mono_method_full_name (cfg->method, FALSE);
4051 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
4055 if (!cfg->compile_aot) {
4056 mono_domain_lock (cfg->domain);
4057 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
4059 if (cfg->method->dynamic)
4060 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
4061 mono_domain_unlock (cfg->domain);
4066 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
4069 /* collect statistics */
4070 #ifndef DISABLE_PERFCOUNTERS
4071 mono_perfcounters->jit_methods++;
4072 mono_perfcounters->jit_bytes += header->code_size;
4074 mono_jit_stats.allocated_code_size += cfg->code_len;
4075 code_size_ratio = cfg->code_len;
4076 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
4077 mono_jit_stats.biggest_method_size = code_size_ratio;
4078 g_free (mono_jit_stats.biggest_method);
4079 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4081 code_size_ratio = (code_size_ratio * 100) / header->code_size;
4082 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
4083 mono_jit_stats.max_code_size_ratio = code_size_ratio;
4084 g_free (mono_jit_stats.max_ratio_method);
4085 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
4087 mono_jit_stats.native_code_size += cfg->code_len;
4089 if (MONO_METHOD_COMPILE_END_ENABLED ())
4090 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
4092 mono_cfg_dump_close_group (cfg);
4098 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments)
4100 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
4104 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
4106 TryBlockHole *hole = (TryBlockHole *)mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
4107 hole->clause = clause;
4108 hole->start_offset = start - cfg->native_code;
4109 hole->basic_block = bb;
4111 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
4115 mono_cfg_set_exception (MonoCompile *cfg, int type)
4117 cfg->exception_type = type;
4120 /* Assumes ownership of the MSG argument */
4122 mono_cfg_set_exception_invalid_program (MonoCompile *cfg, char *msg)
4124 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
4125 mono_error_set_generic_error (&cfg->error, "System", "InvalidProgramException", msg);
4128 #endif /* DISABLE_JIT */
4131 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
4133 MonoDomain *domain = mono_get_root_domain ();
4138 if (info->uw_info) {
4139 uw_info = info->uw_info;
4140 info_len = info->uw_info_len;
4142 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
4145 jinfo = (MonoJitInfo *)mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
4146 jinfo->d.method = wrapper;
4147 jinfo->code_start = info->code;
4148 jinfo->code_size = info->code_size;
4149 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
4157 GTimer *mono_time_track_start ()
4159 return g_timer_new ();
4162 void mono_time_track_end (double *time, GTimer *timer)
4164 g_timer_stop (timer);
4165 *time += g_timer_elapsed (timer, NULL);
4166 g_timer_destroy (timer);
4169 void mono_update_jit_stats (MonoCompile *cfg)
4171 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4172 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4173 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4174 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4175 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4176 mono_jit_stats.regvars += cfg->stat_n_regvars;
4177 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4178 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4179 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4183 * mono_jit_compile_method_inner:
4185 * Main entry point for the JIT.
4188 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoError *error)
4191 gpointer code = NULL;
4192 MonoJitInfo *jinfo, *info;
4194 MonoException *ex = NULL;
4195 guint32 prof_options;
4197 MonoMethod *prof_method, *shared;
4199 mono_error_init (error);
4201 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
4202 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
4204 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
4206 if (!piinfo->addr) {
4207 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
4208 piinfo->addr = mono_lookup_internal_call (method);
4209 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
4211 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);
4213 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);
4216 mono_lookup_pinvoke_call (method, NULL, NULL);
4218 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
4219 gpointer compiled_method = mono_compile_method_checked (nm, error);
4220 return_val_if_nok (error, NULL);
4221 code = mono_get_addr_from_ftnptr (compiled_method);
4222 jinfo = mono_jit_info_table_find (target_domain, (char *)code);
4224 jinfo = mono_jit_info_table_find (mono_domain_get (), (char *)code);
4226 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4228 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
4229 const char *name = method->name;
4230 char *full_name, *msg;
4233 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4234 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4235 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
4238 * We need to make sure this wrapper
4239 * is compiled because it might end up
4240 * in an (M)RGCTX if generic sharing
4241 * is enabled, and would be called
4242 * indirectly. If it were a
4243 * trampoline we'd try to patch that
4244 * indirect call, which is not
4247 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4248 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4249 if (mono_llvm_only) {
4250 nm = mono_marshal_get_delegate_invoke (method, NULL);
4251 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4252 mono_error_assert_ok (error);
4253 return mono_get_addr_from_ftnptr (compiled_ptr);
4255 return mono_create_delegate_trampoline (target_domain, method->klass);
4256 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4257 nm = mono_marshal_get_delegate_begin_invoke (method);
4258 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4259 mono_error_assert_ok (error);
4260 return mono_get_addr_from_ftnptr (compiled_ptr);
4261 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4262 nm = mono_marshal_get_delegate_end_invoke (method);
4263 gpointer compiled_ptr = mono_compile_method_checked (nm, error);
4264 mono_error_assert_ok (error);
4265 return mono_get_addr_from_ftnptr (compiled_ptr);
4269 full_name = mono_method_full_name (method, TRUE);
4270 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4271 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4272 mono_error_set_exception_instance (error, ex);
4278 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4279 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4281 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4282 static MonoTrampInfo *in_tinfo, *out_tinfo;
4283 MonoTrampInfo *tinfo;
4285 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4287 if (is_in && in_tinfo)
4288 return in_tinfo->code;
4289 else if (!is_in && out_tinfo)
4290 return out_tinfo->code;
4293 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4295 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4298 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4300 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4301 jinfo = create_jit_info_for_trampoline (method, tinfo);
4302 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4311 if (mono_aot_only) {
4312 char *fullname = mono_method_full_name (method, TRUE);
4313 char *msg = g_strdup_printf ("Attempting to JIT compile method '%s' while running with --aot-only. See http://docs.xamarin.com/ios/about/limitations for more information.\n", fullname);
4315 ex = mono_get_exception_execution_engine (msg);
4316 mono_error_set_exception_instance (error, ex);
4323 jit_timer = mono_time_track_start ();
4324 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4325 mono_time_track_end (&mono_jit_stats.jit_time, jit_timer);
4327 prof_method = cfg->method;
4329 switch (cfg->exception_type) {
4330 case MONO_EXCEPTION_NONE:
4332 case MONO_EXCEPTION_TYPE_LOAD:
4333 case MONO_EXCEPTION_MISSING_FIELD:
4334 case MONO_EXCEPTION_MISSING_METHOD:
4335 case MONO_EXCEPTION_FILE_NOT_FOUND:
4336 case MONO_EXCEPTION_BAD_IMAGE:
4337 case MONO_EXCEPTION_INVALID_PROGRAM: {
4338 /* Throw a type load exception if needed */
4339 if (cfg->exception_ptr) {
4340 ex = mono_class_get_exception_for_failure ((MonoClass *)cfg->exception_ptr);
4342 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4343 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4344 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4345 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4346 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4347 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4348 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4349 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4350 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4351 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4352 else if (cfg->exception_type == MONO_EXCEPTION_INVALID_PROGRAM)
4353 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4355 g_assert_not_reached ();
4359 case MONO_EXCEPTION_MONO_ERROR:
4360 // FIXME: MonoError has no copy ctor
4361 g_assert (!mono_error_ok (&cfg->error));
4362 ex = mono_error_convert_to_exception (&cfg->error);
4365 g_assert_not_reached ();
4369 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4370 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4372 mono_destroy_compile (cfg);
4373 mono_error_set_exception_instance (error, ex);
4378 if (mono_method_is_generic_sharable (method, FALSE))
4379 shared = mini_get_shared_method (method);
4383 mono_domain_lock (target_domain);
4385 /* Check if some other thread already did the job. In this case, we can
4386 discard the code this thread generated. */
4388 info = mini_lookup_method (target_domain, method, shared);
4390 /* We can't use a domain specific method in another domain */
4391 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4392 code = info->code_start;
4393 // printf("Discarding code for method %s\n", method->name);
4397 /* The lookup + insert is atomic since this is done inside the domain lock */
4398 mono_domain_jit_code_hash_lock (target_domain);
4399 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4400 mono_domain_jit_code_hash_unlock (target_domain);
4402 code = cfg->native_code;
4404 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4405 mono_stats.generics_shared_methods++;
4407 mono_stats.gsharedvt_methods++;
4410 jinfo = cfg->jit_info;
4412 prof_options = cfg->prof_options;
4415 * Update global stats while holding a lock, instead of doing many
4416 * InterlockedIncrement operations during JITting.
4418 mono_update_jit_stats (cfg);
4420 mono_destroy_compile (cfg);
4423 if (domain_jit_info (target_domain)->jump_target_hash) {
4424 MonoJumpInfo patch_info;
4425 MonoJumpList *jlist;
4427 jlist = (MonoJumpList *)g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4429 patch_info.next = NULL;
4430 patch_info.ip.i = 0;
4431 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4432 patch_info.data.method = method;
4433 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4435 #if defined(__native_client_codegen__) && defined(__native_client__)
4436 /* These patches are applied after a method has been installed, no target munging is needed. */
4437 nacl_allow_target_modification (FALSE);
4439 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4440 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4441 gpointer target = mono_resolve_patch_target (NULL, target_domain, (guint8 *)tmp->data, &patch_info, TRUE, error);
4442 if (!mono_error_ok (error))
4444 mono_arch_patch_code_new (NULL, target_domain, (guint8 *)tmp->data, &patch_info, target);
4447 for (tmp = jlist->list; tmp; tmp = tmp->next)
4448 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE);
4450 #if defined(__native_client_codegen__) && defined(__native_client__)
4451 nacl_allow_target_modification (TRUE);
4456 /* Update llvm callees */
4457 if (domain_jit_info (target_domain)->llvm_jit_callees) {
4458 GSList *callees = g_hash_table_lookup (domain_jit_info (target_domain)->llvm_jit_callees, method);
4461 for (l = callees; l; l = l->next) {
4462 gpointer *addr = (gpointer*)l->data;
4468 mono_emit_jit_map (jinfo);
4470 mono_domain_unlock (target_domain);
4472 if (!mono_error_ok (error))
4475 vtable = mono_class_vtable (target_domain, method->klass);
4477 ex = mono_class_get_exception_for_failure (method->klass);
4479 mono_error_set_exception_instance (error, ex);
4483 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4484 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4485 if (mono_marshal_method_from_wrapper (method)) {
4486 /* Native func wrappers have no method */
4487 /* The profiler doesn't know about wrappers, so pass the original icall method */
4488 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4491 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4492 if (prof_method != method) {
4493 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4497 if (!mono_runtime_class_init_full (vtable, error))
4503 * mini_get_underlying_type:
4505 * Return the type the JIT will use during compilation.
4506 * Handles: byref, enums, native types, generic sharing.
4507 * For gsharedvt types, it will return the original VAR/MVAR.
4510 mini_get_underlying_type (MonoType *type)
4512 return mini_type_get_underlying_type (type);
4516 mini_jit_init (void)
4518 mono_os_mutex_init_recursive (&jit_mutex);
4520 current_backend = g_new0 (MonoBackend, 1);
4521 init_backend (current_backend);
4526 mini_jit_cleanup (void)
4529 g_free (emul_opcode_map);
4530 g_free (emul_opcode_opcodes);
4536 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4538 g_assert_not_reached ();
4541 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4543 g_assert_not_reached ();
4548 #if !defined(ENABLE_LLVM_RUNTIME) && !defined(ENABLE_LLVM)
4551 mono_llvm_cpp_throw_exception (void)
4553 g_assert_not_reached ();
4561 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
4563 g_assert_not_reached ();
4568 mono_destroy_compile (MonoCompile *cfg)
4570 g_assert_not_reached ();
4574 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
4576 g_assert_not_reached ();
4579 #endif /* DISABLE_JIT */