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)
21 #ifdef HAVE_SYS_TIME_H
25 #include <mono/utils/memcheck.h>
27 #include <mono/metadata/assembly.h>
28 #include <mono/metadata/loader.h>
29 #include <mono/metadata/tabledefs.h>
30 #include <mono/metadata/class.h>
31 #include <mono/metadata/object.h>
32 #include <mono/metadata/tokentype.h>
33 #include <mono/metadata/tabledefs.h>
34 #include <mono/metadata/threads.h>
35 #include <mono/metadata/appdomain.h>
36 #include <mono/metadata/debug-helpers.h>
37 #include "mono/metadata/profiler.h"
38 #include <mono/metadata/profiler-private.h>
39 #include <mono/metadata/mono-config.h>
40 #include <mono/metadata/environment.h>
41 #include <mono/metadata/mono-debug.h>
42 #include <mono/metadata/gc-internal.h>
43 #include <mono/metadata/threads-types.h>
44 #include <mono/metadata/verify.h>
45 #include <mono/metadata/verify-internals.h>
46 #include <mono/metadata/mempool-internals.h>
47 #include <mono/metadata/attach.h>
48 #include <mono/metadata/runtime.h>
49 #include <mono/utils/mono-math.h>
50 #include <mono/utils/mono-compiler.h>
51 #include <mono/utils/mono-counters.h>
52 #include <mono/utils/mono-error-internals.h>
53 #include <mono/utils/mono-logger-internal.h>
54 #include <mono/utils/mono-mmap.h>
55 #include <mono/utils/mono-path.h>
56 #include <mono/utils/mono-tls.h>
57 #include <mono/utils/mono-hwcap.h>
58 #include <mono/utils/dtrace.h>
59 #include <mono/utils/mono-threads.h>
60 #include <mono/io-layer/io-layer.h>
63 #include "seq-points.h"
71 #include "jit-icalls.h"
74 #include "debugger-agent.h"
76 MonoTraceSpec *mono_jit_trace_calls;
77 MonoMethodDesc *mono_inject_async_exc_method;
78 int mono_inject_async_exc_pos;
79 MonoMethodDesc *mono_break_at_bb_method;
80 int mono_break_at_bb_bb_num;
81 gboolean mono_do_x86_stack_align = TRUE;
82 gboolean mono_using_xdebug;
84 #define mono_jit_lock() mono_mutex_lock (&jit_mutex)
85 #define mono_jit_unlock() mono_mutex_unlock (&jit_mutex)
86 static mono_mutex_t jit_mutex;
89 mono_realloc_native_code (MonoCompile *cfg)
91 #if defined(__default_codegen__)
92 return g_realloc (cfg->native_code, cfg->code_size);
93 #elif defined(__native_client_codegen__)
96 guint alignment_check;
98 /* Save the old alignment offset so we can re-align after the realloc. */
99 old_padding = (guint)(cfg->native_code - cfg->native_code_alloc);
100 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
102 cfg->native_code_alloc = g_realloc ( cfg->native_code_alloc,
103 cfg->code_size + kNaClAlignment );
105 /* Align native_code to next nearest kNaClAlignment byte. */
106 native_code = (guint)cfg->native_code_alloc + kNaClAlignment;
107 native_code = (guint)native_code & ~kNaClAlignmentMask;
109 /* Shift the data to be 32-byte aligned again. */
110 memmove (native_code, cfg->native_code_alloc + old_padding, cfg->code_size);
112 alignment_check = (guint)native_code & kNaClAlignmentMask;
113 g_assert (alignment_check == 0);
116 g_assert_not_reached ();
117 return cfg->native_code;
121 #ifdef __native_client_codegen__
123 /* Prevent instructions from straddling a 32-byte alignment boundary. */
124 /* Instructions longer than 32 bytes must be aligned internally. */
125 /* IN: pcode, instlen */
127 void mono_nacl_align_inst(guint8 **pcode, int instlen) {
130 space_in_block = kNaClAlignment - ((uintptr_t)(*pcode) & kNaClAlignmentMask);
132 if (G_UNLIKELY (instlen >= kNaClAlignment)) {
133 g_assert_not_reached();
134 } else if (instlen > space_in_block) {
135 *pcode = mono_arch_nacl_pad(*pcode, space_in_block);
139 /* Move emitted call sequence to the end of a kNaClAlignment-byte block. */
140 /* IN: start pointer to start of call sequence */
141 /* IN: pcode pointer to end of call sequence (current "IP") */
142 /* OUT: start pointer to the start of the call sequence after padding */
143 /* OUT: pcode pointer to the end of the call sequence after padding */
144 void mono_nacl_align_call(guint8 **start, guint8 **pcode) {
145 const size_t MAX_NACL_CALL_LENGTH = kNaClAlignment;
146 guint8 copy_of_call[MAX_NACL_CALL_LENGTH];
149 const size_t length = (size_t)((*pcode)-(*start));
150 g_assert(length < MAX_NACL_CALL_LENGTH);
152 memcpy(copy_of_call, *start, length);
153 temp = mono_nacl_pad_call(*start, (guint8)length);
154 memcpy(temp, copy_of_call, length);
156 (*pcode) = temp + length;
159 /* mono_nacl_pad_call(): Insert padding for Native Client call instructions */
160 /* code pointer to buffer for emitting code */
161 /* ilength length of call instruction */
162 guint8 *mono_nacl_pad_call(guint8 *code, guint8 ilength) {
163 int freeSpaceInBlock = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
164 int padding = freeSpaceInBlock - ilength;
167 /* There isn't enough space in this block for the instruction. */
168 /* Fill this block and start a new one. */
169 code = mono_arch_nacl_pad(code, freeSpaceInBlock);
170 freeSpaceInBlock = kNaClAlignment;
171 padding = freeSpaceInBlock - ilength;
173 g_assert(ilength > 0);
174 g_assert(padding >= 0);
175 g_assert(padding < kNaClAlignment);
176 if (0 == padding) return code;
177 return mono_arch_nacl_pad(code, padding);
180 guint8 *mono_nacl_align(guint8 *code) {
181 int padding = kNaClAlignment - ((uintptr_t)code & kNaClAlignmentMask);
182 if (padding != kNaClAlignment) code = mono_arch_nacl_pad(code, padding);
186 void mono_nacl_fix_patches(const guint8 *code, MonoJumpInfo *ji)
188 #ifndef USE_JUMP_TABLES
189 MonoJumpInfo *patch_info;
190 for (patch_info = ji; patch_info; patch_info = patch_info->next) {
191 unsigned char *ip = patch_info->ip.i + code;
192 ip = mono_arch_nacl_skip_nops(ip);
193 patch_info->ip.i = ip - code;
197 #endif /* __native_client_codegen__ */
200 MonoExceptionClause *clause;
201 MonoBasicBlock *basic_block;
206 * mono_emit_unwind_op:
208 * Add an unwind op with the given parameters for the list of unwind ops stored in
212 mono_emit_unwind_op (MonoCompile *cfg, int when, int tag, int reg, int val)
214 MonoUnwindOp *op = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoUnwindOp));
221 cfg->unwind_ops = g_slist_append_mempool (cfg->mempool, cfg->unwind_ops, op);
222 if (cfg->verbose_level > 1) {
225 printf ("CFA: [%x] def_cfa: %s+0x%x\n", when, mono_arch_regname (reg), val);
227 case DW_CFA_def_cfa_register:
228 printf ("CFA: [%x] def_cfa_reg: %s\n", when, mono_arch_regname (reg));
230 case DW_CFA_def_cfa_offset:
231 printf ("CFA: [%x] def_cfa_offset: 0x%x\n", when, val);
234 printf ("CFA: [%x] offset: %s at cfa-0x%x\n", when, mono_arch_regname (reg), -val);
240 #define MONO_INIT_VARINFO(vi,id) do { \
241 (vi)->range.first_use.pos.bid = 0xffff; \
247 * mono_unlink_bblock:
249 * Unlink two basic blocks.
252 mono_unlink_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
258 for (i = 0; i < from->out_count; ++i) {
259 if (to == from->out_bb [i]) {
266 for (i = 0; i < from->out_count; ++i) {
267 if (from->out_bb [i] != to)
268 from->out_bb [pos ++] = from->out_bb [i];
270 g_assert (pos == from->out_count - 1);
275 for (i = 0; i < to->in_count; ++i) {
276 if (from == to->in_bb [i]) {
283 for (i = 0; i < to->in_count; ++i) {
284 if (to->in_bb [i] != from)
285 to->in_bb [pos ++] = to->in_bb [i];
287 g_assert (pos == to->in_count - 1);
293 * mono_bblocks_linked:
295 * Return whenever BB1 and BB2 are linked in the CFG.
298 mono_bblocks_linked (MonoBasicBlock *bb1, MonoBasicBlock *bb2)
302 for (i = 0; i < bb1->out_count; ++i) {
303 if (bb1->out_bb [i] == bb2)
311 mono_find_block_region_notry (MonoCompile *cfg, int offset)
313 MonoMethodHeader *header = cfg->header;
314 MonoExceptionClause *clause;
317 for (i = 0; i < header->num_clauses; ++i) {
318 clause = &header->clauses [i];
319 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
320 (offset < (clause->handler_offset)))
321 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
323 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
324 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
325 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
326 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
327 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
329 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
337 * mono_get_block_region_notry:
339 * Return the region corresponding to REGION, ignoring try clauses nested inside
343 mono_get_block_region_notry (MonoCompile *cfg, int region)
345 if ((region & (0xf << 4)) == MONO_REGION_TRY) {
346 MonoMethodHeader *header = cfg->header;
349 * This can happen if a try clause is nested inside a finally clause.
351 int clause_index = (region >> 8) - 1;
352 g_assert (clause_index >= 0 && clause_index < header->num_clauses);
354 region = mono_find_block_region_notry (cfg, header->clauses [clause_index].try_offset);
361 mono_find_spvar_for_region (MonoCompile *cfg, int region)
363 region = mono_get_block_region_notry (cfg, region);
365 return g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
369 df_visit (MonoBasicBlock *start, int *dfn, MonoBasicBlock **array)
373 array [*dfn] = start;
374 /* g_print ("visit %d at %p (BB%ld)\n", *dfn, start->cil_code, start->block_num); */
375 for (i = 0; i < start->out_count; ++i) {
376 if (start->out_bb [i]->dfn)
379 start->out_bb [i]->dfn = *dfn;
380 start->out_bb [i]->df_parent = start;
381 array [*dfn] = start->out_bb [i];
382 df_visit (start->out_bb [i], dfn, array);
387 mono_reverse_branch_op (guint32 opcode)
389 static const int reverse_map [] = {
390 CEE_BNE_UN, CEE_BLT, CEE_BLE, CEE_BGT, CEE_BGE,
391 CEE_BEQ, CEE_BLT_UN, CEE_BLE_UN, CEE_BGT_UN, CEE_BGE_UN
393 static const int reverse_fmap [] = {
394 OP_FBNE_UN, OP_FBLT, OP_FBLE, OP_FBGT, OP_FBGE,
395 OP_FBEQ, OP_FBLT_UN, OP_FBLE_UN, OP_FBGT_UN, OP_FBGE_UN
397 static const int reverse_lmap [] = {
398 OP_LBNE_UN, OP_LBLT, OP_LBLE, OP_LBGT, OP_LBGE,
399 OP_LBEQ, OP_LBLT_UN, OP_LBLE_UN, OP_LBGT_UN, OP_LBGE_UN
401 static const int reverse_imap [] = {
402 OP_IBNE_UN, OP_IBLT, OP_IBLE, OP_IBGT, OP_IBGE,
403 OP_IBEQ, OP_IBLT_UN, OP_IBLE_UN, OP_IBGT_UN, OP_IBGE_UN
406 if (opcode >= CEE_BEQ && opcode <= CEE_BLT_UN) {
407 opcode = reverse_map [opcode - CEE_BEQ];
408 } else if (opcode >= OP_FBEQ && opcode <= OP_FBLT_UN) {
409 opcode = reverse_fmap [opcode - OP_FBEQ];
410 } else if (opcode >= OP_LBEQ && opcode <= OP_LBLT_UN) {
411 opcode = reverse_lmap [opcode - OP_LBEQ];
412 } else if (opcode >= OP_IBEQ && opcode <= OP_IBLT_UN) {
413 opcode = reverse_imap [opcode - OP_IBEQ];
415 g_assert_not_reached ();
421 mono_type_to_store_membase (MonoCompile *cfg, MonoType *type)
423 type = mini_get_underlying_type (type);
426 switch (type->type) {
429 return OP_STOREI1_MEMBASE_REG;
432 return OP_STOREI2_MEMBASE_REG;
435 return OP_STOREI4_MEMBASE_REG;
439 case MONO_TYPE_FNPTR:
440 return OP_STORE_MEMBASE_REG;
441 case MONO_TYPE_CLASS:
442 case MONO_TYPE_STRING:
443 case MONO_TYPE_OBJECT:
444 case MONO_TYPE_SZARRAY:
445 case MONO_TYPE_ARRAY:
446 return OP_STORE_MEMBASE_REG;
449 return OP_STOREI8_MEMBASE_REG;
451 return OP_STORER4_MEMBASE_REG;
453 return OP_STORER8_MEMBASE_REG;
454 case MONO_TYPE_VALUETYPE:
455 if (type->data.klass->enumtype) {
456 type = mono_class_enum_basetype (type->data.klass);
459 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
460 return OP_STOREX_MEMBASE;
461 return OP_STOREV_MEMBASE;
462 case MONO_TYPE_TYPEDBYREF:
463 return OP_STOREV_MEMBASE;
464 case MONO_TYPE_GENERICINST:
465 type = &type->data.generic_class->container_class->byval_arg;
469 g_assert (mini_type_var_is_vt (type));
470 return OP_STOREV_MEMBASE;
472 g_error ("unknown type 0x%02x in type_to_store_membase", type->type);
478 mono_type_to_load_membase (MonoCompile *cfg, MonoType *type)
480 type = mini_get_underlying_type (type);
482 switch (type->type) {
484 return OP_LOADI1_MEMBASE;
486 return OP_LOADU1_MEMBASE;
488 return OP_LOADI2_MEMBASE;
490 return OP_LOADU2_MEMBASE;
492 return OP_LOADI4_MEMBASE;
494 return OP_LOADU4_MEMBASE;
498 case MONO_TYPE_FNPTR:
499 return OP_LOAD_MEMBASE;
500 case MONO_TYPE_CLASS:
501 case MONO_TYPE_STRING:
502 case MONO_TYPE_OBJECT:
503 case MONO_TYPE_SZARRAY:
504 case MONO_TYPE_ARRAY:
505 return OP_LOAD_MEMBASE;
508 return OP_LOADI8_MEMBASE;
510 return OP_LOADR4_MEMBASE;
512 return OP_LOADR8_MEMBASE;
513 case MONO_TYPE_VALUETYPE:
514 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
515 return OP_LOADX_MEMBASE;
516 case MONO_TYPE_TYPEDBYREF:
517 return OP_LOADV_MEMBASE;
518 case MONO_TYPE_GENERICINST:
519 if (mono_type_generic_inst_is_valuetype (type))
520 return OP_LOADV_MEMBASE;
522 return OP_LOAD_MEMBASE;
526 g_assert (cfg->gshared);
527 g_assert (mini_type_var_is_vt (type));
528 return OP_LOADV_MEMBASE;
530 g_error ("unknown type 0x%02x in type_to_load_membase", type->type);
536 mini_type_to_ldind (MonoCompile* cfg, MonoType *type)
538 type = mini_get_underlying_type (type);
539 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
540 g_assert (mini_type_var_is_vt (type));
543 return mono_type_to_ldind (type);
549 mini_type_to_stind (MonoCompile* cfg, MonoType *type)
551 type = mini_get_underlying_type (type);
552 if (cfg->gshared && !type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)) {
553 g_assert (mini_type_var_is_vt (type));
556 return mono_type_to_stind (type);
560 mono_op_imm_to_op (int opcode)
564 #if SIZEOF_REGISTER == 4
580 #if SIZEOF_REGISTER == 4
586 #if SIZEOF_REGISTER == 4
592 #if SIZEOF_REGISTER == 4
632 #if SIZEOF_REGISTER == 4
638 #if SIZEOF_REGISTER == 4
657 case OP_ICOMPARE_IMM:
659 case OP_LOCALLOC_IMM:
662 printf ("%s\n", mono_inst_name (opcode));
663 g_assert_not_reached ();
669 * mono_decompose_op_imm:
671 * Replace the OP_.._IMM INS with its non IMM variant.
674 mono_decompose_op_imm (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins)
678 MONO_INST_NEW (cfg, temp, OP_ICONST);
679 temp->inst_c0 = ins->inst_imm;
680 temp->dreg = mono_alloc_ireg (cfg);
681 mono_bblock_insert_before_ins (bb, ins, temp);
682 ins->opcode = mono_op_imm_to_op (ins->opcode);
683 if (ins->opcode == OP_LOCALLOC)
684 ins->sreg1 = temp->dreg;
686 ins->sreg2 = temp->dreg;
688 bb->max_vreg = MAX (bb->max_vreg, cfg->next_vreg);
694 set_vreg_to_inst (MonoCompile *cfg, int vreg, MonoInst *inst)
696 if (vreg >= cfg->vreg_to_inst_len) {
697 MonoInst **tmp = cfg->vreg_to_inst;
698 int size = cfg->vreg_to_inst_len;
700 while (vreg >= cfg->vreg_to_inst_len)
701 cfg->vreg_to_inst_len = cfg->vreg_to_inst_len ? cfg->vreg_to_inst_len * 2 : 32;
702 cfg->vreg_to_inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * cfg->vreg_to_inst_len);
704 memcpy (cfg->vreg_to_inst, tmp, size * sizeof (MonoInst*));
706 cfg->vreg_to_inst [vreg] = inst;
709 #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)))
710 #define mono_type_is_float(type) (!(type)->byref && (((type)->type == MONO_TYPE_R8) || ((type)->type == MONO_TYPE_R4)))
715 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
723 mono_compile_create_var_for_vreg (MonoCompile *cfg, MonoType *type, int opcode, int vreg)
726 int num = cfg->num_varinfo;
729 type = mini_get_underlying_type (type);
731 if ((num + 1) >= cfg->varinfo_count) {
732 int orig_count = cfg->varinfo_count;
733 cfg->varinfo_count = cfg->varinfo_count ? (cfg->varinfo_count * 2) : 32;
734 cfg->varinfo = (MonoInst **)g_realloc (cfg->varinfo, sizeof (MonoInst*) * cfg->varinfo_count);
735 cfg->vars = (MonoMethodVar *)g_realloc (cfg->vars, sizeof (MonoMethodVar) * cfg->varinfo_count);
736 memset (&cfg->vars [orig_count], 0, (cfg->varinfo_count - orig_count) * sizeof (MonoMethodVar));
739 cfg->stat_allocate_var++;
741 MONO_INST_NEW (cfg, inst, opcode);
743 inst->inst_vtype = type;
744 inst->klass = mono_class_from_mono_type (type);
745 type_to_eval_stack_type (cfg, type, inst);
746 /* if set to 1 the variable is native */
747 inst->backend.is_pinvoke = 0;
750 if (inst->klass->exception_type)
751 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
753 if (cfg->compute_gc_maps) {
755 mono_mark_vreg_as_mp (cfg, vreg);
757 if ((MONO_TYPE_ISSTRUCT (type) && inst->klass->has_references) || mini_type_is_reference (type)) {
758 inst->flags |= MONO_INST_GC_TRACK;
759 mono_mark_vreg_as_ref (cfg, vreg);
764 cfg->varinfo [num] = inst;
766 MONO_INIT_VARINFO (&cfg->vars [num], num);
767 MONO_VARINFO (cfg, num)->vreg = vreg;
770 set_vreg_to_inst (cfg, vreg, inst);
772 #if SIZEOF_REGISTER == 4
773 if (mono_arch_is_soft_float ()) {
774 regpair = mono_type_is_long (type) || mono_type_is_float (type);
776 regpair = mono_type_is_long (type);
786 * These two cannot be allocated using create_var_for_vreg since that would
787 * put it into the cfg->varinfo array, confusing many parts of the JIT.
791 * Set flags to VOLATILE so SSA skips it.
794 if (cfg->verbose_level >= 4) {
795 printf (" Create LVAR R%d (R%d, R%d)\n", inst->dreg, inst->dreg + 1, inst->dreg + 2);
798 if (mono_arch_is_soft_float () && cfg->opt & MONO_OPT_SSA) {
799 if (mono_type_is_float (type))
800 inst->flags = MONO_INST_VOLATILE;
803 /* Allocate a dummy MonoInst for the first vreg */
804 MONO_INST_NEW (cfg, tree, OP_LOCAL);
805 tree->dreg = inst->dreg + 1;
806 if (cfg->opt & MONO_OPT_SSA)
807 tree->flags = MONO_INST_VOLATILE;
809 tree->type = STACK_I4;
810 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
811 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
813 set_vreg_to_inst (cfg, inst->dreg + 1, tree);
815 /* Allocate a dummy MonoInst for the second vreg */
816 MONO_INST_NEW (cfg, tree, OP_LOCAL);
817 tree->dreg = inst->dreg + 2;
818 if (cfg->opt & MONO_OPT_SSA)
819 tree->flags = MONO_INST_VOLATILE;
821 tree->type = STACK_I4;
822 tree->inst_vtype = &mono_defaults.int32_class->byval_arg;
823 tree->klass = mono_class_from_mono_type (tree->inst_vtype);
825 set_vreg_to_inst (cfg, inst->dreg + 2, tree);
829 if (cfg->verbose_level > 2)
830 g_print ("created temp %d (R%d) of type %s\n", num, vreg, mono_type_get_name (type));
835 mono_compile_create_var (MonoCompile *cfg, MonoType *type, int opcode)
838 type = mini_get_underlying_type (type);
840 if (mono_type_is_long (type))
841 dreg = mono_alloc_dreg (cfg, STACK_I8);
842 else if (mono_arch_is_soft_float () && mono_type_is_float (type))
843 dreg = mono_alloc_dreg (cfg, STACK_R8);
845 /* All the others are unified */
846 dreg = mono_alloc_preg (cfg);
848 return mono_compile_create_var_for_vreg (cfg, type, opcode, dreg);
852 * Transform a MonoInst into a load from the variable of index var_index.
855 mono_compile_make_var_load (MonoCompile *cfg, MonoInst *dest, gssize var_index)
857 memset (dest, 0, sizeof (MonoInst));
858 dest->inst_i0 = cfg->varinfo [var_index];
859 dest->opcode = mini_type_to_ldind (cfg, dest->inst_i0->inst_vtype);
860 type_to_eval_stack_type (cfg, dest->inst_i0->inst_vtype, dest);
861 dest->klass = dest->inst_i0->klass;
865 mini_get_int_to_float_spill_area (MonoCompile *cfg)
868 if (!cfg->iconv_raw_var) {
869 cfg->iconv_raw_var = mono_compile_create_var (cfg, &mono_defaults.int32_class->byval_arg, OP_LOCAL);
870 cfg->iconv_raw_var->flags |= MONO_INST_VOLATILE; /*FIXME, use the don't regalloc flag*/
872 return cfg->iconv_raw_var;
881 mono_mark_vreg_as_ref (MonoCompile *cfg, int vreg)
883 if (vreg >= cfg->vreg_is_ref_len) {
884 gboolean *tmp = cfg->vreg_is_ref;
885 int size = cfg->vreg_is_ref_len;
887 while (vreg >= cfg->vreg_is_ref_len)
888 cfg->vreg_is_ref_len = cfg->vreg_is_ref_len ? cfg->vreg_is_ref_len * 2 : 32;
889 cfg->vreg_is_ref = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_ref_len);
891 memcpy (cfg->vreg_is_ref, tmp, size * sizeof (gboolean));
893 cfg->vreg_is_ref [vreg] = TRUE;
897 mono_mark_vreg_as_mp (MonoCompile *cfg, int vreg)
899 if (vreg >= cfg->vreg_is_mp_len) {
900 gboolean *tmp = cfg->vreg_is_mp;
901 int size = cfg->vreg_is_mp_len;
903 while (vreg >= cfg->vreg_is_mp_len)
904 cfg->vreg_is_mp_len = cfg->vreg_is_mp_len ? cfg->vreg_is_mp_len * 2 : 32;
905 cfg->vreg_is_mp = mono_mempool_alloc0 (cfg->mempool, sizeof (gboolean) * cfg->vreg_is_mp_len);
907 memcpy (cfg->vreg_is_mp, tmp, size * sizeof (gboolean));
909 cfg->vreg_is_mp [vreg] = TRUE;
913 type_from_stack_type (MonoInst *ins) {
915 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
916 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
917 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
918 case STACK_R8: return &mono_defaults.double_class->byval_arg;
921 * this if used to be commented without any specific reason, but
922 * it breaks #80235 when commented
925 return &ins->klass->this_arg;
927 return &mono_defaults.object_class->this_arg;
929 /* ins->klass may not be set for ldnull.
930 * Also, if we have a boxed valuetype, we want an object lass,
931 * not the valuetype class
933 if (ins->klass && !ins->klass->valuetype)
934 return &ins->klass->byval_arg;
935 return &mono_defaults.object_class->byval_arg;
936 case STACK_VTYPE: return &ins->klass->byval_arg;
938 g_error ("stack type %d to montype not handled\n", ins->type);
944 mono_type_from_stack_type (MonoInst *ins) {
945 return type_from_stack_type (ins);
949 * mono_add_ins_to_end:
951 * Same as MONO_ADD_INS, but add INST before any branches at the end of BB.
954 mono_add_ins_to_end (MonoBasicBlock *bb, MonoInst *inst)
959 MONO_ADD_INS (bb, inst);
963 switch (bb->last_ins->opcode) {
977 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
980 if (MONO_IS_COND_BRANCH_OP (bb->last_ins)) {
981 /* Need to insert the ins before the compare */
982 if (bb->code == bb->last_ins) {
983 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
987 if (bb->code->next == bb->last_ins) {
988 /* Only two instructions */
989 opcode = bb->code->opcode;
991 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)) {
993 mono_bblock_insert_before_ins (bb, bb->code, inst);
995 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
998 opcode = bb->last_ins->prev->opcode;
1000 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)) {
1002 mono_bblock_insert_before_ins (bb, bb->last_ins->prev, inst);
1004 mono_bblock_insert_before_ins (bb, bb->last_ins, inst);
1009 MONO_ADD_INS (bb, inst);
1015 mono_create_jump_table (MonoCompile *cfg, MonoInst *label, MonoBasicBlock **bbs, int num_blocks)
1017 MonoJumpInfo *ji = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfo));
1018 MonoJumpInfoBBTable *table;
1020 table = mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
1022 table->table_size = num_blocks;
1024 ji->ip.label = label;
1025 ji->type = MONO_PATCH_INFO_SWITCH;
1026 ji->data.table = table;
1027 ji->next = cfg->patch_info;
1028 cfg->patch_info = ji;
1031 static MonoMethodSignature *
1032 mono_get_array_new_va_signature (int arity)
1034 static GHashTable *sighash;
1035 MonoMethodSignature *res;
1040 sighash = g_hash_table_new (NULL, NULL);
1042 else if ((res = g_hash_table_lookup (sighash, GINT_TO_POINTER (arity)))) {
1047 res = mono_metadata_signature_alloc (mono_defaults.corlib, arity + 1);
1050 if (ARCH_VARARG_ICALLS)
1051 /* Only set this only some archs since not all backends can handle varargs+pinvoke */
1052 res->call_convention = MONO_CALL_VARARG;
1055 res->call_convention = MONO_CALL_C;
1058 res->params [0] = &mono_defaults.int_class->byval_arg;
1059 for (i = 0; i < arity; i++)
1060 res->params [i + 1] = &mono_defaults.int_class->byval_arg;
1062 res->ret = &mono_defaults.object_class->byval_arg;
1064 g_hash_table_insert (sighash, GINT_TO_POINTER (arity), res);
1071 mono_get_array_new_va_icall (int rank)
1073 MonoMethodSignature *esig;
1074 char icall_name [256];
1076 MonoJitICallInfo *info;
1078 /* Need to register the icall so it gets an icall wrapper */
1079 sprintf (icall_name, "ves_array_new_va_%d", rank);
1082 info = mono_find_jit_icall_by_name (icall_name);
1084 esig = mono_get_array_new_va_signature (rank);
1085 name = g_strdup (icall_name);
1086 info = mono_register_jit_icall (mono_array_new_va, name, esig, FALSE);
1094 mini_class_is_system_array (MonoClass *klass)
1096 if (klass->parent == mono_defaults.array_class)
1103 mini_assembly_can_skip_verification (MonoDomain *domain, MonoMethod *method)
1105 MonoAssembly *assembly = method->klass->image->assembly;
1106 if (method->wrapper_type != MONO_WRAPPER_NONE && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
1108 if (assembly->in_gac || assembly->image == mono_defaults.corlib)
1110 return mono_assembly_has_skip_verification (assembly);
1114 * mini_method_verify:
1116 * Verify the method using the new verfier.
1118 * Returns true if the method is invalid.
1121 mini_method_verify (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1124 gboolean is_fulltrust;
1125 MonoLoaderError *error;
1127 if (method->verification_success)
1130 if (!mono_verifier_is_enabled_for_method (method))
1133 /*skip verification implies the assembly must be */
1134 is_fulltrust = mono_verifier_is_method_full_trust (method) || mini_assembly_can_skip_verification (cfg->domain, method);
1136 res = mono_method_verify_with_current_settings (method, cfg->skip_visibility, is_fulltrust);
1138 if ((error = mono_loader_get_last_error ())) {
1140 cfg->exception_type = error->exception_type;
1142 mono_loader_clear_error ();
1144 mono_free_verify_list (res);
1149 for (tmp = res; tmp; tmp = tmp->next) {
1150 MonoVerifyInfoExtended *info = (MonoVerifyInfoExtended *)tmp->data;
1151 if (info->info.status == MONO_VERIFY_ERROR) {
1153 char *method_name = mono_method_full_name (method, TRUE);
1154 cfg->exception_type = info->exception_type;
1155 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1156 g_free (method_name);
1158 mono_free_verify_list (res);
1161 if (info->info.status == MONO_VERIFY_NOT_VERIFIABLE && (!is_fulltrust || info->exception_type == MONO_EXCEPTION_METHOD_ACCESS || info->exception_type == MONO_EXCEPTION_FIELD_ACCESS)) {
1163 char *method_name = mono_method_full_name (method, TRUE);
1164 cfg->exception_type = info->exception_type;
1165 cfg->exception_message = g_strdup_printf ("Error verifying %s: %s", method_name, info->info.message);
1166 g_free (method_name);
1168 mono_free_verify_list (res);
1172 mono_free_verify_list (res);
1174 method->verification_success = 1;
1178 /*Returns true if something went wrong*/
1180 mono_compile_is_broken (MonoCompile *cfg, MonoMethod *method, gboolean fail_compile)
1182 MonoMethod *method_definition = method;
1183 gboolean dont_verify = method->klass->image->assembly->corlib_internal;
1185 while (method_definition->is_inflated) {
1186 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
1187 method_definition = imethod->declaring;
1190 return !dont_verify && mini_method_verify (cfg, method_definition, fail_compile);
1194 mono_dynamic_code_hash_insert (MonoDomain *domain, MonoMethod *method, MonoJitDynamicMethodInfo *ji)
1196 if (!domain_jit_info (domain)->dynamic_code_hash)
1197 domain_jit_info (domain)->dynamic_code_hash = g_hash_table_new (NULL, NULL);
1198 g_hash_table_insert (domain_jit_info (domain)->dynamic_code_hash, method, ji);
1201 static MonoJitDynamicMethodInfo*
1202 mono_dynamic_code_hash_lookup (MonoDomain *domain, MonoMethod *method)
1204 MonoJitDynamicMethodInfo *res;
1206 if (domain_jit_info (domain)->dynamic_code_hash)
1207 res = g_hash_table_lookup (domain_jit_info (domain)->dynamic_code_hash, method);
1215 GList *active, *inactive;
1220 compare_by_interval_start_pos_func (gconstpointer a, gconstpointer b)
1222 MonoMethodVar *v1 = (MonoMethodVar*)a;
1223 MonoMethodVar *v2 = (MonoMethodVar*)b;
1227 else if (v1->interval->range && v2->interval->range)
1228 return v1->interval->range->from - v2->interval->range->from;
1229 else if (v1->interval->range)
1238 #define LSCAN_DEBUG(a) do { a; } while (0)
1240 #define LSCAN_DEBUG(a)
1244 mono_allocate_stack_slots2 (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1246 int i, slot, offset, size;
1251 GList *vars = NULL, *l, *unhandled;
1252 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1255 gboolean reuse_slot;
1257 LSCAN_DEBUG (printf ("Allocate Stack Slots 2 for %s:\n", mono_method_full_name (cfg->method, TRUE)));
1259 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1260 vtype_stack_slots = NULL;
1263 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1264 for (i = 0; i < cfg->num_varinfo; ++i)
1267 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1268 inst = cfg->varinfo [i];
1269 vmv = MONO_VARINFO (cfg, i);
1271 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1274 vars = g_list_prepend (vars, vmv);
1277 vars = g_list_sort (g_list_copy (vars), compare_by_interval_start_pos_func);
1282 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1283 MonoMethodVar *current = unhandled->data;
1285 if (current->interval->range) {
1286 g_assert (current->interval->range->from >= i);
1287 i = current->interval->range->from;
1294 for (unhandled = vars; unhandled; unhandled = unhandled->next) {
1295 MonoMethodVar *current = unhandled->data;
1298 inst = cfg->varinfo [vmv->idx];
1300 t = mono_type_get_underlying_type (inst->inst_vtype);
1301 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1304 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1305 * pinvoke wrappers when they call functions returning structures */
1306 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1307 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1312 size = mini_type_stack_size (t, &ialign);
1315 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1320 if (cfg->disable_reuse_stack_slots)
1323 t = mini_get_underlying_type (t);
1325 case MONO_TYPE_GENERICINST:
1326 if (!mono_type_generic_inst_is_valuetype (t)) {
1327 slot_info = &scalar_stack_slots [t->type];
1331 case MONO_TYPE_VALUETYPE:
1332 if (!vtype_stack_slots)
1333 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1334 for (i = 0; i < nvtypes; ++i)
1335 if (t->data.klass == vtype_stack_slots [i].vtype)
1338 slot_info = &vtype_stack_slots [i];
1340 g_assert (nvtypes < 256);
1341 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1342 slot_info = &vtype_stack_slots [nvtypes];
1345 if (cfg->disable_reuse_ref_stack_slots)
1352 #if SIZEOF_VOID_P == 4
1357 if (cfg->disable_ref_noref_stack_slot_share) {
1358 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1363 case MONO_TYPE_CLASS:
1364 case MONO_TYPE_OBJECT:
1365 case MONO_TYPE_ARRAY:
1366 case MONO_TYPE_SZARRAY:
1367 case MONO_TYPE_STRING:
1368 /* Share non-float stack slots of the same size */
1369 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1370 if (cfg->disable_reuse_ref_stack_slots)
1375 slot_info = &scalar_stack_slots [t->type];
1379 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1383 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1385 if (!current->interval->range) {
1386 if (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))
1390 inst->flags |= MONO_INST_IS_DEAD;
1395 pos = current->interval->range->from;
1397 LSCAN_DEBUG (printf ("process R%d ", inst->dreg));
1398 if (current->interval->range)
1399 LSCAN_DEBUG (mono_linterval_print (current->interval));
1400 LSCAN_DEBUG (printf ("\n"));
1402 /* Check for intervals in active which expired or inactive */
1404 /* FIXME: Optimize this */
1407 for (l = slot_info->active; l != NULL; l = l->next) {
1408 MonoMethodVar *v = (MonoMethodVar*)l->data;
1410 if (v->interval->last_range->to < pos) {
1411 slot_info->active = g_list_delete_link (slot_info->active, l);
1412 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1413 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1417 else if (!mono_linterval_covers (v->interval, pos)) {
1418 slot_info->inactive = g_list_append (slot_info->inactive, v);
1419 slot_info->active = g_list_delete_link (slot_info->active, l);
1420 LSCAN_DEBUG (printf ("Interval R%d became inactive\n", cfg->varinfo [v->idx]->dreg));
1427 /* Check for intervals in inactive which expired or active */
1429 /* FIXME: Optimize this */
1432 for (l = slot_info->inactive; l != NULL; l = l->next) {
1433 MonoMethodVar *v = (MonoMethodVar*)l->data;
1435 if (v->interval->last_range->to < pos) {
1436 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1437 // FIXME: Enabling this seems to cause impossible to debug crashes
1438 //slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [v->idx]));
1439 LSCAN_DEBUG (printf ("Interval R%d has expired, adding 0x%x to slots\n", cfg->varinfo [v->idx]->dreg, offsets [v->idx]));
1443 else if (mono_linterval_covers (v->interval, pos)) {
1444 slot_info->active = g_list_append (slot_info->active, v);
1445 slot_info->inactive = g_list_delete_link (slot_info->inactive, l);
1446 LSCAN_DEBUG (printf ("\tInterval R%d became active\n", cfg->varinfo [v->idx]->dreg));
1454 * This also handles the case when the variable is used in an
1455 * exception region, as liveness info is not computed there.
1458 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1461 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1462 if (slot_info->slots) {
1463 slot = GPOINTER_TO_INT (slot_info->slots->data);
1465 slot_info->slots = slot_info->slots->next;
1468 /* FIXME: We might want to consider the inactive intervals as well if slot_info->slots is empty */
1470 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1476 static int count = 0;
1479 if (count == atoi (g_getenv ("COUNT3")))
1480 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1481 if (count > atoi (g_getenv ("COUNT3")))
1484 mono_print_ins (inst);
1489 LSCAN_DEBUG (printf ("R%d %s -> 0x%x\n", inst->dreg, mono_type_full_name (t), slot));
1491 if (inst->flags & MONO_INST_LMF) {
1492 size = sizeof (MonoLMF);
1493 align = sizeof (mgreg_t);
1500 if (slot == 0xffffff) {
1502 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1503 * efficient copying (and to work around the fact that OP_MEMCPY
1504 * and OP_MEMSET ignores alignment).
1506 if (MONO_TYPE_ISSTRUCT (t)) {
1507 align = MAX (align, sizeof (gpointer));
1508 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1513 offset += align - 1;
1514 offset &= ~(align - 1);
1518 offset += align - 1;
1519 offset &= ~(align - 1);
1524 if (*stack_align == 0)
1525 *stack_align = align;
1528 offsets [vmv->idx] = slot;
1531 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1532 if (scalar_stack_slots [i].active)
1533 g_list_free (scalar_stack_slots [i].active);
1535 for (i = 0; i < nvtypes; ++i) {
1536 if (vtype_stack_slots [i].active)
1537 g_list_free (vtype_stack_slots [i].active);
1540 cfg->stat_locals_stack_size += offset;
1542 *stack_size = offset;
1547 * mono_allocate_stack_slots:
1549 * Allocate stack slots for all non register allocated variables using a
1550 * linear scan algorithm.
1551 * Returns: an array of stack offsets.
1552 * STACK_SIZE is set to the amount of stack space needed.
1553 * STACK_ALIGN is set to the alignment needed by the locals area.
1556 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1558 int i, slot, offset, size;
1563 GList *vars = NULL, *l;
1564 StackSlotInfo *scalar_stack_slots, *vtype_stack_slots, *slot_info;
1567 gboolean reuse_slot;
1569 if ((cfg->num_varinfo > 0) && MONO_VARINFO (cfg, 0)->interval)
1570 return mono_allocate_stack_slots2 (cfg, backward, stack_size, stack_align);
1572 scalar_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * MONO_TYPE_PINNED);
1573 vtype_stack_slots = NULL;
1576 offsets = mono_mempool_alloc (cfg->mempool, sizeof (gint32) * cfg->num_varinfo);
1577 for (i = 0; i < cfg->num_varinfo; ++i)
1580 for (i = cfg->locals_start; i < cfg->num_varinfo; i++) {
1581 inst = cfg->varinfo [i];
1582 vmv = MONO_VARINFO (cfg, i);
1584 if ((inst->flags & MONO_INST_IS_DEAD) || inst->opcode == OP_REGVAR || inst->opcode == OP_REGOFFSET)
1587 vars = g_list_prepend (vars, vmv);
1590 vars = mono_varlist_sort (cfg, vars, 0);
1592 *stack_align = sizeof(mgreg_t);
1593 for (l = vars; l; l = l->next) {
1595 inst = cfg->varinfo [vmv->idx];
1597 t = mono_type_get_underlying_type (inst->inst_vtype);
1598 if (cfg->gsharedvt && mini_is_gsharedvt_variable_type (t))
1601 /* inst->backend.is_pinvoke indicates native sized value types, this is used by the
1602 * pinvoke wrappers when they call functions returning structures */
1603 if (inst->backend.is_pinvoke && MONO_TYPE_ISSTRUCT (t) && t->type != MONO_TYPE_TYPEDBYREF) {
1604 size = mono_class_native_size (mono_class_from_mono_type (t), &align);
1608 size = mini_type_stack_size (t, &ialign);
1611 if (mono_class_from_mono_type (t)->exception_type)
1612 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
1614 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (t)))
1619 if (cfg->disable_reuse_stack_slots)
1622 t = mini_get_underlying_type (t);
1624 case MONO_TYPE_GENERICINST:
1625 if (!mono_type_generic_inst_is_valuetype (t)) {
1626 slot_info = &scalar_stack_slots [t->type];
1630 case MONO_TYPE_VALUETYPE:
1631 if (!vtype_stack_slots)
1632 vtype_stack_slots = mono_mempool_alloc0 (cfg->mempool, sizeof (StackSlotInfo) * 256);
1633 for (i = 0; i < nvtypes; ++i)
1634 if (t->data.klass == vtype_stack_slots [i].vtype)
1637 slot_info = &vtype_stack_slots [i];
1639 g_assert (nvtypes < 256);
1640 vtype_stack_slots [nvtypes].vtype = t->data.klass;
1641 slot_info = &vtype_stack_slots [nvtypes];
1644 if (cfg->disable_reuse_ref_stack_slots)
1651 #if SIZEOF_VOID_P == 4
1656 if (cfg->disable_ref_noref_stack_slot_share) {
1657 slot_info = &scalar_stack_slots [MONO_TYPE_I];
1662 case MONO_TYPE_CLASS:
1663 case MONO_TYPE_OBJECT:
1664 case MONO_TYPE_ARRAY:
1665 case MONO_TYPE_SZARRAY:
1666 case MONO_TYPE_STRING:
1667 /* Share non-float stack slots of the same size */
1668 slot_info = &scalar_stack_slots [MONO_TYPE_CLASS];
1669 if (cfg->disable_reuse_ref_stack_slots)
1673 case MONO_TYPE_MVAR:
1674 slot_info = &scalar_stack_slots [t->type];
1677 slot_info = &scalar_stack_slots [t->type];
1682 if (cfg->comp_done & MONO_COMP_LIVENESS) {
1683 //printf ("START %2d %08x %08x\n", vmv->idx, vmv->range.first_use.abs_pos, vmv->range.last_use.abs_pos);
1685 /* expire old intervals in active */
1686 while (slot_info->active) {
1687 MonoMethodVar *amv = (MonoMethodVar *)slot_info->active->data;
1689 if (amv->range.last_use.abs_pos > vmv->range.first_use.abs_pos)
1692 //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);
1694 slot_info->active = g_list_delete_link (slot_info->active, slot_info->active);
1695 slot_info->slots = g_slist_prepend_mempool (cfg->mempool, slot_info->slots, GINT_TO_POINTER (offsets [amv->idx]));
1699 * This also handles the case when the variable is used in an
1700 * exception region, as liveness info is not computed there.
1703 * FIXME: All valuetypes are marked as INDIRECT because of LDADDR
1706 if (! (inst->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT))) {
1707 if (slot_info->slots) {
1708 slot = GPOINTER_TO_INT (slot_info->slots->data);
1710 slot_info->slots = slot_info->slots->next;
1713 slot_info->active = mono_varlist_insert_sorted (cfg, slot_info->active, vmv, TRUE);
1718 static int count = 0;
1722 if (count == atoi (g_getenv ("COUNT")))
1723 printf ("LAST: %s\n", mono_method_full_name (cfg->method, TRUE));
1724 if (count > atoi (g_getenv ("COUNT")))
1727 mono_print_ins (inst);
1732 if (inst->flags & MONO_INST_LMF) {
1734 * This variable represents a MonoLMF structure, which has no corresponding
1735 * CLR type, so hard-code its size/alignment.
1737 size = sizeof (MonoLMF);
1738 align = sizeof (mgreg_t);
1745 if (slot == 0xffffff) {
1747 * Allways allocate valuetypes to sizeof (gpointer) to allow more
1748 * efficient copying (and to work around the fact that OP_MEMCPY
1749 * and OP_MEMSET ignores alignment).
1751 if (MONO_TYPE_ISSTRUCT (t)) {
1752 align = MAX (align, sizeof (gpointer));
1753 align = MAX (align, mono_class_min_align (mono_class_from_mono_type (t)));
1755 * Align the size too so the code generated for passing vtypes in
1756 * registers doesn't overwrite random locals.
1758 size = (size + (align - 1)) & ~(align -1);
1763 offset += align - 1;
1764 offset &= ~(align - 1);
1768 offset += align - 1;
1769 offset &= ~(align - 1);
1774 *stack_align = MAX (*stack_align, align);
1777 offsets [vmv->idx] = slot;
1780 for (i = 0; i < MONO_TYPE_PINNED; ++i) {
1781 if (scalar_stack_slots [i].active)
1782 g_list_free (scalar_stack_slots [i].active);
1784 for (i = 0; i < nvtypes; ++i) {
1785 if (vtype_stack_slots [i].active)
1786 g_list_free (vtype_stack_slots [i].active);
1789 cfg->stat_locals_stack_size += offset;
1791 *stack_size = offset;
1798 mono_allocate_stack_slots (MonoCompile *cfg, gboolean backward, guint32 *stack_size, guint32 *stack_align)
1800 g_assert_not_reached ();
1804 #endif /* DISABLE_JIT */
1806 #define EMUL_HIT_SHIFT 3
1807 #define EMUL_HIT_MASK ((1 << EMUL_HIT_SHIFT) - 1)
1808 /* small hit bitmap cache */
1809 static mono_byte emul_opcode_hit_cache [(OP_LAST>>EMUL_HIT_SHIFT) + 1] = {0};
1810 static short emul_opcode_num = 0;
1811 static short emul_opcode_alloced = 0;
1812 static short *emul_opcode_opcodes;
1813 static MonoJitICallInfo **emul_opcode_map;
1816 mono_find_jit_opcode_emulation (int opcode)
1818 g_assert (opcode >= 0 && opcode <= OP_LAST);
1819 if (emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] & (1 << (opcode & EMUL_HIT_MASK))) {
1821 for (i = 0; i < emul_opcode_num; ++i) {
1822 if (emul_opcode_opcodes [i] == opcode)
1823 return emul_opcode_map [i];
1830 mini_register_opcode_emulation (int opcode, const char *name, const char *sigstr, gpointer func, const char *symbol, gboolean no_throw)
1832 MonoJitICallInfo *info;
1833 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
1835 g_assert (!sig->hasthis);
1836 g_assert (sig->param_count < 3);
1838 /* Opcode emulation functions are assumed to don't call mono_raise_exception () */
1839 info = mono_register_jit_icall_full (func, name, sig, no_throw, TRUE, symbol);
1841 if (emul_opcode_num >= emul_opcode_alloced) {
1842 int incr = emul_opcode_alloced? emul_opcode_alloced/2: 16;
1843 emul_opcode_alloced += incr;
1844 emul_opcode_map = g_realloc (emul_opcode_map, sizeof (emul_opcode_map [0]) * emul_opcode_alloced);
1845 emul_opcode_opcodes = g_realloc (emul_opcode_opcodes, sizeof (emul_opcode_opcodes [0]) * emul_opcode_alloced);
1847 emul_opcode_map [emul_opcode_num] = info;
1848 emul_opcode_opcodes [emul_opcode_num] = opcode;
1850 emul_opcode_hit_cache [opcode >> (EMUL_HIT_SHIFT + 3)] |= (1 << (opcode & EMUL_HIT_MASK));
1854 print_dfn (MonoCompile *cfg) {
1861 char *method_name = mono_method_full_name (cfg->method, TRUE);
1862 g_print ("IR code for method %s\n", method_name);
1863 g_free (method_name);
1866 for (i = 0; i < cfg->num_bblocks; ++i) {
1867 bb = cfg->bblocks [i];
1868 /*if (bb->cil_code) {
1869 char* code1, *code2;
1870 code1 = mono_disasm_code_one (NULL, cfg->method, bb->cil_code, NULL);
1871 if (bb->last_ins->cil_code)
1872 code2 = mono_disasm_code_one (NULL, cfg->method, bb->last_ins->cil_code, NULL);
1874 code2 = g_strdup ("");
1876 code1 [strlen (code1) - 1] = 0;
1877 code = g_strdup_printf ("%s -> %s", code1, code2);
1881 code = g_strdup ("\n");
1882 g_print ("\nBB%d (%d) (len: %d): %s", bb->block_num, i, bb->cil_length, code);
1883 MONO_BB_FOR_EACH_INS (bb, c) {
1884 mono_print_ins_index (-1, c);
1887 g_print ("\tprev:");
1888 for (j = 0; j < bb->in_count; ++j) {
1889 g_print (" BB%d", bb->in_bb [j]->block_num);
1891 g_print ("\t\tsucc:");
1892 for (j = 0; j < bb->out_count; ++j) {
1893 g_print (" BB%d", bb->out_bb [j]->block_num);
1895 g_print ("\n\tidom: BB%d\n", bb->idom? bb->idom->block_num: -1);
1898 g_assert (mono_bitset_test_fast (bb->dominators, bb->idom->dfn));
1901 mono_blockset_print (cfg, bb->dominators, "\tdominators", bb->idom? bb->idom->dfn: -1);
1903 mono_blockset_print (cfg, bb->dfrontier, "\tdfrontier", -1);
1911 mono_bblock_add_inst (MonoBasicBlock *bb, MonoInst *inst)
1913 MONO_ADD_INS (bb, inst);
1917 mono_bblock_insert_after_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1921 bb->code = ins_to_insert;
1923 /* Link with next */
1924 ins_to_insert->next = ins;
1926 ins->prev = ins_to_insert;
1928 if (bb->last_ins == NULL)
1929 bb->last_ins = ins_to_insert;
1931 /* Link with next */
1932 ins_to_insert->next = ins->next;
1934 ins->next->prev = ins_to_insert;
1936 /* Link with previous */
1937 ins->next = ins_to_insert;
1938 ins_to_insert->prev = ins;
1940 if (bb->last_ins == ins)
1941 bb->last_ins = ins_to_insert;
1946 mono_bblock_insert_before_ins (MonoBasicBlock *bb, MonoInst *ins, MonoInst *ins_to_insert)
1951 ins->prev = ins_to_insert;
1952 bb->code = ins_to_insert;
1953 ins_to_insert->next = ins;
1954 if (bb->last_ins == NULL)
1955 bb->last_ins = ins_to_insert;
1957 /* Link with previous */
1959 ins->prev->next = ins_to_insert;
1960 ins_to_insert->prev = ins->prev;
1962 /* Link with next */
1963 ins->prev = ins_to_insert;
1964 ins_to_insert->next = ins;
1966 if (bb->code == ins)
1967 bb->code = ins_to_insert;
1972 * mono_verify_bblock:
1974 * Verify that the next and prev pointers are consistent inside the instructions in BB.
1977 mono_verify_bblock (MonoBasicBlock *bb)
1979 MonoInst *ins, *prev;
1982 for (ins = bb->code; ins; ins = ins->next) {
1983 g_assert (ins->prev == prev);
1987 g_assert (!bb->last_ins->next);
1993 * Perform consistency checks on the JIT data structures and the IR
1996 mono_verify_cfg (MonoCompile *cfg)
2000 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2001 mono_verify_bblock (bb);
2005 mono_destroy_compile (MonoCompile *cfg)
2011 mono_metadata_free_mh (cfg->header);
2012 //mono_mempool_stats (cfg->mempool);
2013 mono_free_loop_info (cfg);
2015 mono_regstate_free (cfg->rs);
2017 g_hash_table_destroy (cfg->spvars);
2019 g_hash_table_destroy (cfg->exvars);
2020 for (l = cfg->headers_to_free; l; l = l->next)
2021 mono_metadata_free_mh (l->data);
2022 g_list_free (cfg->ldstr_list);
2023 g_hash_table_destroy (cfg->token_info_hash);
2024 if (cfg->abs_patches)
2025 g_hash_table_destroy (cfg->abs_patches);
2026 mono_mempool_destroy (cfg->mempool);
2028 mono_debug_free_method (cfg);
2030 g_free (cfg->varinfo);
2032 g_free (cfg->exception_message);
2040 mono_create_tls_get_offset (MonoCompile *cfg, int offset)
2044 if (!MONO_ARCH_HAVE_TLS_GET)
2050 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
2051 ins->dreg = mono_alloc_preg (cfg);
2052 ins->inst_offset = offset;
2057 mini_tls_get_supported (MonoCompile *cfg, MonoTlsKey key)
2059 if (!MONO_ARCH_HAVE_TLS_GET)
2062 if (cfg->compile_aot)
2063 return ARCH_HAVE_TLS_GET_REG;
2065 return mini_get_tls_offset (key) != -1;
2069 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
2071 if (!MONO_ARCH_HAVE_TLS_GET)
2075 * TLS offsets might be different at AOT time, so load them from a GOT slot and
2076 * use a different opcode.
2078 if (cfg->compile_aot) {
2079 if (ARCH_HAVE_TLS_GET_REG) {
2082 EMIT_NEW_TLS_OFFSETCONST (cfg, c, key);
2083 MONO_INST_NEW (cfg, ins, OP_TLS_GET_REG);
2084 ins->dreg = mono_alloc_preg (cfg);
2085 ins->sreg1 = c->dreg;
2092 return mono_create_tls_get_offset (cfg, mini_get_tls_offset (key));
2096 mono_get_jit_tls_intrinsic (MonoCompile *cfg)
2098 return mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
2102 mono_get_domain_intrinsic (MonoCompile* cfg)
2104 return mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
2108 mono_get_thread_intrinsic (MonoCompile* cfg)
2110 return mono_create_tls_get (cfg, TLS_KEY_THREAD);
2114 mono_get_lmf_intrinsic (MonoCompile* cfg)
2116 return mono_create_tls_get (cfg, TLS_KEY_LMF);
2120 mono_get_lmf_addr_intrinsic (MonoCompile* cfg)
2122 return mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
2125 #endif /* !DISABLE_JIT */
2129 mono_add_patch_info (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target)
2131 MonoJumpInfo *ji = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2135 ji->data.target = target;
2136 ji->next = cfg->patch_info;
2138 cfg->patch_info = ji;
2142 mono_add_patch_info_rel (MonoCompile *cfg, int ip, MonoJumpInfoType type, gconstpointer target, int relocation)
2144 MonoJumpInfo *ji = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfo));
2148 ji->relocation = relocation;
2149 ji->data.target = target;
2150 ji->next = cfg->patch_info;
2152 cfg->patch_info = ji;
2156 mono_remove_patch_info (MonoCompile *cfg, int ip)
2158 MonoJumpInfo **ji = &cfg->patch_info;
2161 if ((*ji)->ip.i == ip)
2164 ji = &((*ji)->next);
2169 mono_add_seq_point (MonoCompile *cfg, MonoBasicBlock *bb, MonoInst *ins, int native_offset)
2171 ins->inst_offset = native_offset;
2172 g_ptr_array_add (cfg->seq_points, ins);
2174 bb->seq_points = g_slist_prepend_mempool (cfg->mempool, bb->seq_points, ins);
2175 bb->last_seq_point = ins;
2180 mono_add_var_location (MonoCompile *cfg, MonoInst *var, gboolean is_reg, int reg, int offset, int from, int to)
2182 MonoDwarfLocListEntry *entry = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDwarfLocListEntry));
2185 g_assert (offset == 0);
2187 entry->is_reg = is_reg;
2189 entry->offset = offset;
2193 if (var == cfg->args [0])
2194 cfg->this_loclist = g_slist_append_mempool (cfg->mempool, cfg->this_loclist, entry);
2195 else if (var == cfg->rgctx_var)
2196 cfg->rgctx_loclist = g_slist_append_mempool (cfg->mempool, cfg->rgctx_loclist, entry);
2202 mono_compile_create_vars (MonoCompile *cfg)
2204 MonoMethodSignature *sig;
2205 MonoMethodHeader *header;
2208 header = cfg->header;
2210 sig = mono_method_signature (cfg->method);
2212 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2213 cfg->ret = mono_compile_create_var (cfg, sig->ret, OP_ARG);
2214 /* Inhibit optimizations */
2215 cfg->ret->flags |= MONO_INST_VOLATILE;
2217 if (cfg->verbose_level > 2)
2218 g_print ("creating vars\n");
2220 cfg->args = mono_mempool_alloc0 (cfg->mempool, (sig->param_count + sig->hasthis) * sizeof (MonoInst*));
2223 cfg->args [0] = mono_compile_create_var (cfg, &cfg->method->klass->this_arg, OP_ARG);
2225 for (i = 0; i < sig->param_count; ++i) {
2226 cfg->args [i + sig->hasthis] = mono_compile_create_var (cfg, sig->params [i], OP_ARG);
2229 if (cfg->verbose_level > 2) {
2231 printf ("\treturn : ");
2232 mono_print_ins (cfg->ret);
2236 printf ("\tthis: ");
2237 mono_print_ins (cfg->args [0]);
2240 for (i = 0; i < sig->param_count; ++i) {
2241 printf ("\targ [%d]: ", i);
2242 mono_print_ins (cfg->args [i + sig->hasthis]);
2246 cfg->locals_start = cfg->num_varinfo;
2247 cfg->locals = mono_mempool_alloc0 (cfg->mempool, header->num_locals * sizeof (MonoInst*));
2249 if (cfg->verbose_level > 2)
2250 g_print ("creating locals\n");
2252 for (i = 0; i < header->num_locals; ++i)
2253 cfg->locals [i] = mono_compile_create_var (cfg, header->locals [i], OP_LOCAL);
2255 if (cfg->verbose_level > 2)
2256 g_print ("locals done\n");
2258 mono_arch_create_vars (cfg);
2260 if (cfg->method->save_lmf && cfg->create_lmf_var) {
2261 MonoInst *lmf_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2262 lmf_var->flags |= MONO_INST_VOLATILE;
2263 lmf_var->flags |= MONO_INST_LMF;
2264 cfg->lmf_var = lmf_var;
2269 mono_print_code (MonoCompile *cfg, const char* msg)
2273 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
2274 mono_print_bb (bb, msg);
2278 mono_postprocess_patches (MonoCompile *cfg)
2280 MonoJumpInfo *patch_info;
2283 for (patch_info = cfg->patch_info; patch_info; patch_info = patch_info->next) {
2284 switch (patch_info->type) {
2285 case MONO_PATCH_INFO_ABS: {
2286 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (patch_info->data.target);
2289 * Change patches of type MONO_PATCH_INFO_ABS into patches describing the
2293 //printf ("TEST %s %p\n", info->name, patch_info->data.target);
2294 /* for these array methods we currently register the same function pointer
2295 * since it's a vararg function. But this means that mono_find_jit_icall_by_addr ()
2296 * will return the incorrect one depending on the order they are registered.
2297 * See tests/test-arr.cs
2299 if (strstr (info->name, "ves_array_new_va_") == NULL && strstr (info->name, "ves_array_element_address_") == NULL) {
2300 patch_info->type = MONO_PATCH_INFO_INTERNAL_METHOD;
2301 patch_info->data.name = info->name;
2305 if (patch_info->type == MONO_PATCH_INFO_ABS) {
2306 if (cfg->abs_patches) {
2307 MonoJumpInfo *abs_ji = g_hash_table_lookup (cfg->abs_patches, patch_info->data.target);
2309 patch_info->type = abs_ji->type;
2310 patch_info->data.target = abs_ji->data.target;
2317 case MONO_PATCH_INFO_SWITCH: {
2319 #if defined(__native_client__) && defined(__native_client_codegen__)
2320 /* This memory will leak. */
2321 /* TODO: can we free this when */
2322 /* making the final jump table? */
2323 table = g_malloc0 (sizeof(gpointer) * patch_info->data.table->table_size);
2325 if (cfg->method->dynamic) {
2326 table = mono_code_manager_reserve (cfg->dynamic_info->code_mp, sizeof (gpointer) * patch_info->data.table->table_size);
2328 table = mono_domain_code_reserve (cfg->domain, sizeof (gpointer) * patch_info->data.table->table_size);
2332 for (i = 0; i < patch_info->data.table->table_size; i++) {
2333 /* Might be NULL if the switch is eliminated */
2334 if (patch_info->data.table->table [i]) {
2335 g_assert (patch_info->data.table->table [i]->native_offset);
2336 table [i] = GINT_TO_POINTER (patch_info->data.table->table [i]->native_offset);
2341 patch_info->data.table->table = (MonoBasicBlock**)table;
2344 case MONO_PATCH_INFO_METHOD_JUMP: {
2345 MonoJumpList *jlist;
2346 MonoDomain *domain = cfg->domain;
2347 unsigned char *ip = cfg->native_code + patch_info->ip.i;
2348 #if defined(__native_client__) && defined(__native_client_codegen__)
2349 /* When this jump target gets evaluated, the method */
2350 /* will be installed in the dynamic code section, */
2351 /* not at the location of cfg->native_code. */
2352 ip = nacl_inverse_modify_patch_target (cfg->native_code) + patch_info->ip.i;
2355 mono_domain_lock (domain);
2356 jlist = g_hash_table_lookup (domain_jit_info (domain)->jump_target_hash, patch_info->data.method);
2358 jlist = mono_domain_alloc0 (domain, sizeof (MonoJumpList));
2359 g_hash_table_insert (domain_jit_info (domain)->jump_target_hash, patch_info->data.method, jlist);
2361 jlist->list = g_slist_prepend (jlist->list, ip);
2362 mono_domain_unlock (domain);
2373 mono_codegen (MonoCompile *cfg)
2376 int max_epilog_size;
2378 MonoDomain *code_domain;
2379 guint unwindlen = 0;
2381 if (mono_using_xdebug)
2383 * Recent gdb versions have trouble processing symbol files containing
2384 * overlapping address ranges, so allocate all code from the code manager
2385 * of the root domain. (#666152).
2387 code_domain = mono_get_root_domain ();
2389 code_domain = cfg->domain;
2391 #if defined(__native_client_codegen__) && defined(__native_client__)
2394 /* This keeps patch targets from being transformed during
2395 * ordinary method compilation, for local branches and jumps.
2397 nacl_allow_target_modification (FALSE);
2400 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2401 cfg->spill_count = 0;
2402 /* we reuse dfn here */
2403 /* bb->dfn = bb_count++; */
2405 mono_arch_lowering_pass (cfg, bb);
2407 if (cfg->opt & MONO_OPT_PEEPHOLE)
2408 mono_arch_peephole_pass_1 (cfg, bb);
2410 mono_local_regalloc (cfg, bb);
2412 if (cfg->opt & MONO_OPT_PEEPHOLE)
2413 mono_arch_peephole_pass_2 (cfg, bb);
2415 if (cfg->gen_seq_points && !cfg->gen_sdb_seq_points)
2416 mono_bb_deduplicate_op_il_seq_points (cfg, bb);
2419 if (cfg->prof_options & MONO_PROFILE_COVERAGE)
2420 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, cfg->num_bblocks);
2422 code = mono_arch_emit_prolog (cfg);
2424 cfg->code_len = code - cfg->native_code;
2425 cfg->prolog_end = cfg->code_len;
2426 cfg->cfa_reg = cfg->cur_cfa_reg;
2427 cfg->cfa_offset = cfg->cur_cfa_offset;
2429 mono_debug_open_method (cfg);
2431 /* emit code all basic blocks */
2432 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2433 bb->native_offset = cfg->code_len;
2434 bb->real_native_offset = cfg->code_len;
2435 //if ((bb == cfg->bb_entry) || !(bb->region == -1 && !bb->dfn))
2436 mono_arch_output_basic_block (cfg, bb);
2437 bb->native_length = cfg->code_len - bb->native_offset;
2439 if (bb == cfg->bb_exit) {
2440 cfg->epilog_begin = cfg->code_len;
2441 mono_arch_emit_epilog (cfg);
2442 cfg->epilog_end = cfg->code_len;
2446 #ifdef __native_client_codegen__
2447 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2449 mono_arch_emit_exceptions (cfg);
2451 max_epilog_size = 0;
2453 /* we always allocate code in cfg->domain->code_mp to increase locality */
2454 cfg->code_size = cfg->code_len + max_epilog_size;
2455 #ifdef __native_client_codegen__
2456 cfg->code_size = NACL_BUNDLE_ALIGN_UP (cfg->code_size);
2458 /* fixme: align to MONO_ARCH_CODE_ALIGNMENT */
2460 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2461 unwindlen = mono_arch_unwindinfo_get_size (cfg->arch.unwindinfo);
2464 if (cfg->method->dynamic) {
2465 /* Allocate the code into a separate memory pool so it can be freed */
2466 cfg->dynamic_info = g_new0 (MonoJitDynamicMethodInfo, 1);
2467 cfg->dynamic_info->code_mp = mono_code_manager_new_dynamic ();
2468 mono_domain_lock (cfg->domain);
2469 mono_dynamic_code_hash_insert (cfg->domain, cfg->method, cfg->dynamic_info);
2470 mono_domain_unlock (cfg->domain);
2472 if (mono_using_xdebug)
2473 /* See the comment for cfg->code_domain */
2474 code = mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2476 code = mono_code_manager_reserve (cfg->dynamic_info->code_mp, cfg->code_size + cfg->thunk_area + unwindlen);
2478 code = mono_domain_code_reserve (code_domain, cfg->code_size + cfg->thunk_area + unwindlen);
2480 #if defined(__native_client_codegen__) && defined(__native_client__)
2481 nacl_allow_target_modification (TRUE);
2483 if (cfg->thunk_area) {
2484 cfg->thunks_offset = cfg->code_size + unwindlen;
2485 cfg->thunks = code + cfg->thunks_offset;
2486 memset (cfg->thunks, 0, cfg->thunk_area);
2490 memcpy (code, cfg->native_code, cfg->code_len);
2491 #if defined(__default_codegen__)
2492 g_free (cfg->native_code);
2493 #elif defined(__native_client_codegen__)
2494 if (cfg->native_code_alloc) {
2495 g_free (cfg->native_code_alloc);
2496 cfg->native_code_alloc = 0;
2498 else if (cfg->native_code) {
2499 g_free (cfg->native_code);
2501 #endif /* __native_client_codegen__ */
2502 cfg->native_code = code;
2503 code = cfg->native_code + cfg->code_len;
2505 /* g_assert (((int)cfg->native_code & (MONO_ARCH_CODE_ALIGNMENT - 1)) == 0); */
2506 mono_postprocess_patches (cfg);
2508 #ifdef VALGRIND_JIT_REGISTER_MAP
2509 if (valgrind_register){
2510 char* nm = mono_method_full_name (cfg->method, TRUE);
2511 VALGRIND_JIT_REGISTER_MAP (nm, cfg->native_code, cfg->native_code + cfg->code_len);
2516 if (cfg->verbose_level > 0) {
2517 char* nm = mono_method_full_name (cfg->method, TRUE);
2518 g_print ("Method %s emitted at %p to %p (code length %d) [%s]\n",
2520 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
2525 gboolean is_generic = FALSE;
2527 if (cfg->method->is_inflated || mono_method_get_generic_container (cfg->method) ||
2528 cfg->method->klass->generic_container || cfg->method->klass->generic_class) {
2533 g_assert (is_generic);
2536 #ifdef MONO_ARCH_HAVE_SAVE_UNWIND_INFO
2537 mono_arch_save_unwind_info (cfg);
2540 #if defined(__native_client_codegen__) && defined(__native_client__)
2541 if (!cfg->compile_aot) {
2542 if (cfg->method->dynamic) {
2543 code_dest = nacl_code_manager_get_code_dest(cfg->dynamic_info->code_mp, cfg->native_code);
2545 code_dest = nacl_domain_get_code_dest(cfg->domain, cfg->native_code);
2550 #if defined(__native_client_codegen__)
2551 mono_nacl_fix_patches (cfg->native_code, cfg->patch_info);
2554 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
2559 for (ji = cfg->patch_info; ji; ji = ji->next) {
2560 if (cfg->compile_aot) {
2562 case MONO_PATCH_INFO_BB:
2563 case MONO_PATCH_INFO_LABEL:
2566 /* No need to patch these */
2571 if (ji->type == MONO_PATCH_INFO_NONE)
2574 target = mono_resolve_patch_target (cfg->method, cfg->domain, cfg->native_code, ji, cfg->run_cctors);
2575 mono_arch_patch_code_new (cfg, cfg->domain, cfg->native_code, ji, target);
2579 mono_arch_patch_code (cfg, cfg->method, cfg->domain, cfg->native_code, cfg->patch_info, cfg->run_cctors);
2582 if (cfg->method->dynamic) {
2583 if (mono_using_xdebug)
2584 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2586 mono_code_manager_commit (cfg->dynamic_info->code_mp, cfg->native_code, cfg->code_size, cfg->code_len);
2588 mono_domain_code_commit (code_domain, cfg->native_code, cfg->code_size, cfg->code_len);
2590 #if defined(__native_client_codegen__) && defined(__native_client__)
2591 cfg->native_code = code_dest;
2593 mono_profiler_code_buffer_new (cfg->native_code, cfg->code_len, MONO_PROFILER_CODE_BUFFER_METHOD, cfg->method);
2595 mono_arch_flush_icache (cfg->native_code, cfg->code_len);
2597 mono_debug_close_method (cfg);
2599 #ifdef MONO_ARCH_HAVE_UNWIND_TABLE
2600 mono_arch_unwindinfo_install_unwind_info (&cfg->arch.unwindinfo, cfg->native_code, cfg->code_len);
2605 compute_reachable (MonoBasicBlock *bb)
2609 if (!(bb->flags & BB_VISITED)) {
2610 bb->flags |= BB_VISITED;
2611 for (i = 0; i < bb->out_count; ++i)
2612 compute_reachable (bb->out_bb [i]);
2617 mono_handle_out_of_line_bblock (MonoCompile *cfg)
2620 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
2621 if (bb->next_bb && bb->next_bb->out_of_line && bb->last_ins && !MONO_IS_BRANCH_OP (bb->last_ins)) {
2623 MONO_INST_NEW (cfg, ins, OP_BR);
2624 MONO_ADD_INS (bb, ins);
2625 ins->inst_target_bb = bb->next_bb;
2630 #endif /* #ifndef DISABLE_JIT */
2633 create_jit_info_for_trampoline (MonoMethod *wrapper, MonoTrampInfo *info)
2635 MonoDomain *domain = mono_get_root_domain ();
2640 if (info->uw_info) {
2641 uw_info = info->uw_info;
2642 info_len = info->uw_info_len;
2644 uw_info = mono_unwind_ops_encode (info->unwind_ops, &info_len);
2647 jinfo = mono_domain_alloc0 (domain, MONO_SIZEOF_JIT_INFO);
2648 jinfo->d.method = wrapper;
2649 jinfo->code_start = info->code;
2650 jinfo->code_size = info->code_size;
2651 jinfo->unwind_info = mono_cache_unwind_info (uw_info, info_len);
2662 create_jit_info (MonoCompile *cfg, MonoMethod *method_to_compile)
2665 MonoMethodHeader *header;
2667 MonoJitInfoFlags flags = JIT_INFO_NONE;
2668 int num_clauses, num_holes = 0;
2669 guint32 stack_size = 0;
2671 g_assert (method_to_compile == cfg->method);
2672 header = cfg->header;
2675 flags |= JIT_INFO_HAS_GENERIC_JIT_INFO;
2677 if (cfg->arch_eh_jit_info) {
2678 MonoJitArgumentInfo *arg_info;
2679 MonoMethodSignature *sig = mono_method_signature (cfg->method_to_register);
2682 * This cannot be computed during stack walking, as
2683 * mono_arch_get_argument_info () is not signal safe.
2685 arg_info = g_newa (MonoJitArgumentInfo, sig->param_count + 1);
2686 stack_size = mono_arch_get_argument_info (sig, sig->param_count, arg_info);
2689 flags |= JIT_INFO_HAS_ARCH_EH_INFO;
2692 if (cfg->has_unwind_info_for_epilog && !(flags & JIT_INFO_HAS_ARCH_EH_INFO))
2693 flags |= JIT_INFO_HAS_ARCH_EH_INFO;
2695 if (cfg->thunk_area)
2696 flags |= JIT_INFO_HAS_THUNK_INFO;
2698 if (cfg->try_block_holes) {
2699 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2700 TryBlockHole *hole = tmp->data;
2701 MonoExceptionClause *ec = hole->clause;
2702 int hole_end = hole->basic_block->native_offset + hole->basic_block->native_length;
2703 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2704 g_assert (clause_last_bb);
2706 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2707 if (clause_last_bb->native_offset != hole_end)
2711 flags |= JIT_INFO_HAS_TRY_BLOCK_HOLES;
2712 if (G_UNLIKELY (cfg->verbose_level >= 4))
2713 printf ("Number of try block holes %d\n", num_holes);
2716 if (COMPILE_LLVM (cfg))
2717 num_clauses = cfg->llvm_ex_info_len;
2719 num_clauses = header->num_clauses;
2721 if (cfg->method->dynamic)
2722 jinfo = g_malloc0 (mono_jit_info_size (flags, num_clauses, num_holes));
2724 jinfo = mono_domain_alloc0 (cfg->domain, mono_jit_info_size (flags, num_clauses, num_holes));
2725 mono_jit_info_init (jinfo, cfg->method_to_register, cfg->native_code, cfg->code_len, flags, num_clauses, num_holes);
2726 jinfo->domain_neutral = (cfg->opt & MONO_OPT_SHARED) != 0;
2728 if (COMPILE_LLVM (cfg))
2729 jinfo->from_llvm = TRUE;
2733 MonoGenericJitInfo *gi;
2734 GSList *loclist = NULL;
2736 gi = mono_jit_info_get_generic_jit_info (jinfo);
2739 if (cfg->method->dynamic)
2740 gi->generic_sharing_context = g_new0 (MonoGenericSharingContext, 1);
2742 gi->generic_sharing_context = mono_domain_alloc0 (cfg->domain, sizeof (MonoGenericSharingContext));
2743 mini_init_gsctx (cfg->method->dynamic ? NULL : cfg->domain, NULL, cfg->gsctx_context, gi->generic_sharing_context);
2745 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2746 mini_method_get_context (method_to_compile)->method_inst ||
2747 method_to_compile->klass->valuetype) {
2748 g_assert (cfg->rgctx_var);
2753 if ((method_to_compile->flags & METHOD_ATTRIBUTE_STATIC) ||
2754 mini_method_get_context (method_to_compile)->method_inst ||
2755 method_to_compile->klass->valuetype) {
2756 inst = cfg->rgctx_var;
2757 if (!COMPILE_LLVM (cfg))
2758 g_assert (inst->opcode == OP_REGOFFSET);
2759 loclist = cfg->rgctx_loclist;
2761 inst = cfg->args [0];
2762 loclist = cfg->this_loclist;
2766 /* Needed to handle async exceptions */
2770 gi->nlocs = g_slist_length (loclist);
2771 if (cfg->method->dynamic)
2772 gi->locations = g_malloc0 (gi->nlocs * sizeof (MonoDwarfLocListEntry));
2774 gi->locations = mono_domain_alloc0 (cfg->domain, gi->nlocs * sizeof (MonoDwarfLocListEntry));
2776 for (l = loclist; l; l = l->next) {
2777 memcpy (&(gi->locations [i]), l->data, sizeof (MonoDwarfLocListEntry));
2782 if (COMPILE_LLVM (cfg)) {
2783 g_assert (cfg->llvm_this_reg != -1);
2784 gi->this_in_reg = 0;
2785 gi->this_reg = cfg->llvm_this_reg;
2786 gi->this_offset = cfg->llvm_this_offset;
2787 } else if (inst->opcode == OP_REGVAR) {
2788 gi->this_in_reg = 1;
2789 gi->this_reg = inst->dreg;
2791 g_assert (inst->opcode == OP_REGOFFSET);
2793 g_assert (inst->inst_basereg == X86_EBP);
2794 #elif defined(TARGET_AMD64)
2795 g_assert (inst->inst_basereg == X86_EBP || inst->inst_basereg == X86_ESP);
2797 g_assert (inst->inst_offset >= G_MININT32 && inst->inst_offset <= G_MAXINT32);
2799 gi->this_in_reg = 0;
2800 gi->this_reg = inst->inst_basereg;
2801 gi->this_offset = inst->inst_offset;
2806 MonoTryBlockHoleTableJitInfo *table;
2809 table = mono_jit_info_get_try_block_hole_table_info (jinfo);
2810 table->num_holes = (guint16)num_holes;
2812 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2813 guint32 start_bb_offset;
2814 MonoTryBlockHoleJitInfo *hole;
2815 TryBlockHole *hole_data = tmp->data;
2816 MonoExceptionClause *ec = hole_data->clause;
2817 int hole_end = hole_data->basic_block->native_offset + hole_data->basic_block->native_length;
2818 MonoBasicBlock *clause_last_bb = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2819 g_assert (clause_last_bb);
2821 /* Holes at the end of a try region can be represented by simply reducing the size of the block itself.*/
2822 if (clause_last_bb->native_offset == hole_end)
2825 start_bb_offset = hole_data->start_offset - hole_data->basic_block->native_offset;
2826 hole = &table->holes [i++];
2827 hole->clause = hole_data->clause - &header->clauses [0];
2828 hole->offset = (guint32)hole_data->start_offset;
2829 hole->length = (guint16)(hole_data->basic_block->native_length - start_bb_offset);
2831 if (G_UNLIKELY (cfg->verbose_level >= 4))
2832 printf ("\tTry block hole at eh clause %d offset %x length %x\n", hole->clause, hole->offset, hole->length);
2834 g_assert (i == num_holes);
2837 if (jinfo->has_arch_eh_info) {
2838 MonoArchEHJitInfo *info;
2840 info = mono_jit_info_get_arch_eh_info (jinfo);
2842 info->stack_size = stack_size;
2845 if (cfg->thunk_area) {
2846 MonoThunkJitInfo *info;
2848 info = mono_jit_info_get_thunk_info (jinfo);
2849 info->thunks_offset = cfg->thunks_offset;
2850 info->thunks_size = cfg->thunk_area;
2853 if (COMPILE_LLVM (cfg)) {
2855 memcpy (&jinfo->clauses [0], &cfg->llvm_ex_info [0], num_clauses * sizeof (MonoJitExceptionInfo));
2856 } else if (header->num_clauses) {
2859 for (i = 0; i < header->num_clauses; i++) {
2860 MonoExceptionClause *ec = &header->clauses [i];
2861 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2862 MonoBasicBlock *tblock;
2863 MonoInst *exvar, *spvar;
2865 ei->flags = ec->flags;
2867 if (G_UNLIKELY (cfg->verbose_level >= 4))
2868 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);
2871 * The spvars are needed by mono_arch_install_handler_block_guard ().
2873 if (ei->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2876 region = ((i + 1) << 8) | MONO_REGION_FINALLY | ec->flags;
2877 spvar = mono_find_spvar_for_region (cfg, region);
2879 ei->exvar_offset = spvar->inst_offset;
2881 exvar = mono_find_exvar_for_offset (cfg, ec->handler_offset);
2882 ei->exvar_offset = exvar ? exvar->inst_offset : 0;
2885 if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2886 tblock = cfg->cil_offset_to_bb [ec->data.filter_offset];
2888 ei->data.filter = cfg->native_code + tblock->native_offset;
2890 ei->data.catch_class = ec->data.catch_class;
2893 tblock = cfg->cil_offset_to_bb [ec->try_offset];
2895 g_assert (tblock->native_offset);
2896 ei->try_start = cfg->native_code + tblock->native_offset;
2897 if (tblock->extend_try_block) {
2899 * Extend the try block backwards to include parts of the previous call
2902 ei->try_start = (guint8*)ei->try_start - MONO_ARCH_MONITOR_ENTER_ADJUSTMENT;
2904 tblock = cfg->cil_offset_to_bb [ec->try_offset + ec->try_len];
2906 if (!tblock->native_offset) {
2908 for (j = ec->try_offset + ec->try_len, end = ec->try_offset; j >= end; --j) {
2909 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2910 if (bb && bb->native_offset) {
2916 ei->try_end = cfg->native_code + tblock->native_offset;
2917 g_assert (tblock->native_offset);
2918 tblock = cfg->cil_offset_to_bb [ec->handler_offset];
2920 ei->handler_start = cfg->native_code + tblock->native_offset;
2922 for (tmp = cfg->try_block_holes; tmp; tmp = tmp->next) {
2923 TryBlockHole *hole = tmp->data;
2924 gpointer hole_end = cfg->native_code + (hole->basic_block->native_offset + hole->basic_block->native_length);
2925 if (hole->clause == ec && hole_end == ei->try_end) {
2926 if (G_UNLIKELY (cfg->verbose_level >= 4))
2927 printf ("\tShortening try block %d from %x to %x\n", i, (int)((guint8*)ei->try_end - cfg->native_code), hole->start_offset);
2929 ei->try_end = cfg->native_code + hole->start_offset;
2934 if (ec->flags == MONO_EXCEPTION_CLAUSE_FINALLY) {
2936 if (ec->handler_offset + ec->handler_len < header->code_size) {
2937 tblock = cfg->cil_offset_to_bb [ec->handler_offset + ec->handler_len];
2938 if (tblock->native_offset) {
2939 end_offset = tblock->native_offset;
2943 for (j = ec->handler_offset + ec->handler_len, end = ec->handler_offset; j >= end; --j) {
2944 MonoBasicBlock *bb = cfg->cil_offset_to_bb [j];
2945 if (bb && bb->native_offset) {
2950 end_offset = tblock->native_offset + tblock->native_length;
2953 end_offset = cfg->epilog_begin;
2955 ei->data.handler_end = cfg->native_code + end_offset;
2960 if (G_UNLIKELY (cfg->verbose_level >= 4)) {
2962 for (i = 0; i < jinfo->num_clauses; i++) {
2963 MonoJitExceptionInfo *ei = &jinfo->clauses [i];
2964 int start = (guint8*)ei->try_start - cfg->native_code;
2965 int end = (guint8*)ei->try_end - cfg->native_code;
2966 int handler = (guint8*)ei->handler_start - cfg->native_code;
2967 int handler_end = (guint8*)ei->data.handler_end - cfg->native_code;
2969 printf ("JitInfo EH clause %d flags %x try %x-%x handler %x-%x\n", i, ei->flags, start, end, handler, handler_end);
2973 if (cfg->encoded_unwind_ops) {
2974 /* Generated by LLVM */
2975 jinfo->unwind_info = mono_cache_unwind_info (cfg->encoded_unwind_ops, cfg->encoded_unwind_ops_len);
2976 g_free (cfg->encoded_unwind_ops);
2977 } else if (cfg->unwind_ops) {
2979 guint8 *unwind_info = mono_unwind_ops_encode (cfg->unwind_ops, &info_len);
2980 guint32 unwind_desc;
2982 unwind_desc = mono_cache_unwind_info (unwind_info, info_len);
2984 if (cfg->has_unwind_info_for_epilog) {
2985 MonoArchEHJitInfo *info;
2987 info = mono_jit_info_get_arch_eh_info (jinfo);
2989 info->epilog_size = cfg->code_len - cfg->epilog_begin;
2991 jinfo->unwind_info = unwind_desc;
2992 g_free (unwind_info);
2994 jinfo->unwind_info = cfg->used_int_regs;
3001 /* Return whenever METHOD is a gsharedvt method */
3003 is_gsharedvt_method (MonoMethod *method)
3005 MonoGenericContext *context;
3006 MonoGenericInst *inst;
3009 if (!method->is_inflated)
3011 context = mono_method_get_context (method);
3012 inst = context->class_inst;
3014 for (i = 0; i < inst->type_argc; ++i)
3015 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
3018 inst = context->method_inst;
3020 for (i = 0; i < inst->type_argc; ++i)
3021 if (mini_is_gsharedvt_gparam (inst->type_argv [i]))
3028 is_open_method (MonoMethod *method)
3030 MonoGenericContext *context;
3032 if (!method->is_inflated)
3034 context = mono_method_get_context (method);
3035 if (context->class_inst && context->class_inst->is_open)
3037 if (context->method_inst && context->method_inst->is_open)
3044 #if defined(__native_client_codegen__) || USE_COOP_GC
3047 mono_create_gc_safepoint (MonoCompile *cfg, MonoBasicBlock *bblock)
3049 MonoInst *poll_addr, *ins;
3050 if (cfg->verbose_level > 1)
3051 printf ("ADDING SAFE POINT TO BB %d\n", bblock->block_num);
3053 #if defined(__native_client_codegen__)
3054 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&__nacl_thread_suspension_needed);
3056 NEW_AOTCONST (cfg, poll_addr, MONO_PATCH_INFO_GC_SAFE_POINT_FLAG, (gpointer)&mono_polling_required);
3059 MONO_INST_NEW (cfg, ins, OP_GC_SAFE_POINT);
3060 ins->sreg1 = poll_addr->dreg;
3062 if (bblock->flags & BB_EXCEPTION_HANDLER) {
3063 MonoInst *eh_op = bblock->code;
3065 if (eh_op && eh_op->opcode != OP_START_HANDLER && eh_op->opcode != OP_GET_EX_OBJ) {
3068 MonoInst *next_eh_op = eh_op ? eh_op->next : NULL;
3069 // skip all EH relateds ops
3070 while (next_eh_op && (next_eh_op->opcode == OP_START_HANDLER || next_eh_op->opcode == OP_GET_EX_OBJ)) {
3072 next_eh_op = eh_op->next;
3076 mono_bblock_insert_after_ins (bblock, eh_op, poll_addr);
3077 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3078 } else if (bblock == cfg->bb_entry) {
3079 mono_bblock_insert_after_ins (bblock, bblock->last_ins, poll_addr);
3080 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3083 mono_bblock_insert_before_ins (bblock, NULL, poll_addr);
3084 mono_bblock_insert_after_ins (bblock, poll_addr, ins);
3089 This code inserts safepoints into managed code at important code paths.
3092 -the first basic block
3093 -landing BB for exception handlers
3098 mono_insert_safepoints (MonoCompile *cfg)
3102 if (cfg->verbose_level > 1)
3103 printf ("INSERTING SAFEPOINTS\n");
3104 if (cfg->verbose_level > 2)
3105 mono_print_code (cfg, "BEFORE SAFEPOINTS");
3107 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3108 if (bb->loop_body_start || bb == cfg->bb_entry || bb->flags & BB_EXCEPTION_HANDLER)
3109 mono_create_gc_safepoint (cfg, bb);
3112 if (cfg->verbose_level > 2)
3113 mono_print_code (cfg, "AFTER SAFEPOINTS");
3120 mono_insert_safepoints (MonoCompile *cfg)
3127 * mini_method_compile:
3128 * @method: the method to compile
3129 * @opts: the optimization flags to use
3130 * @domain: the domain where the method will be compiled in
3131 * @flags: compilation flags
3132 * @parts: debug flag
3134 * Returns: a MonoCompile* pointer. Caller must check the exception_type
3135 * field in the returned struct to see if compilation succeded.
3138 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3140 MonoMethodHeader *header;
3141 MonoMethodSignature *sig;
3144 int dfn, i, code_size_ratio;
3145 gboolean try_generic_shared, try_llvm = FALSE;
3146 MonoMethod *method_to_compile, *method_to_register;
3147 gboolean method_is_gshared = FALSE;
3148 gboolean run_cctors = (flags & JIT_FLAG_RUN_CCTORS) ? 1 : 0;
3149 gboolean compile_aot = (flags & JIT_FLAG_AOT) ? 1 : 0;
3150 gboolean full_aot = (flags & JIT_FLAG_FULL_AOT) ? 1 : 0;
3151 gboolean disable_direct_icalls = (flags & JIT_FLAG_NO_DIRECT_ICALLS) ? 1 : 0;
3152 gboolean gsharedvt_method = FALSE;
3154 gboolean llvm = (flags & JIT_FLAG_LLVM) ? 1 : 0;
3156 static gboolean verbose_method_inited;
3157 static const char *verbose_method_name;
3159 InterlockedIncrement (&mono_jit_stats.methods_compiled);
3160 if (mono_profiler_get_events () & MONO_PROFILE_JIT_COMPILATION)
3161 mono_profiler_method_jit (method);
3162 if (MONO_METHOD_COMPILE_BEGIN_ENABLED ())
3163 MONO_PROBE_METHOD_COMPILE_BEGIN (method);
3165 gsharedvt_method = is_gsharedvt_method (method);
3168 * In AOT mode, method can be the following:
3169 * - a gsharedvt method.
3170 * - a method inflated with type parameters. This is for ref/partial sharing.
3171 * - a method inflated with concrete types.
3174 if (is_open_method (method)) {
3175 try_generic_shared = TRUE;
3176 method_is_gshared = TRUE;
3178 try_generic_shared = FALSE;
3180 g_assert (opts & MONO_OPT_GSHARED);
3182 try_generic_shared = mono_class_generic_sharing_enabled (method->klass) &&
3183 (opts & MONO_OPT_GSHARED) && mono_method_is_generic_sharable (method, FALSE);
3184 if (mini_is_gsharedvt_sharable_method (method)) {
3185 if (!mono_debug_count ())
3186 try_generic_shared = FALSE;
3191 if (try_generic_shared && !mono_debug_count ())
3192 try_generic_shared = FALSE;
3195 if (opts & MONO_OPT_GSHARED) {
3196 if (try_generic_shared)
3197 mono_stats.generics_sharable_methods++;
3198 else if (mono_method_is_generic_impl (method))
3199 mono_stats.generics_unsharable_methods++;
3203 try_llvm = mono_use_llvm || llvm;
3207 if (method_is_gshared) {
3208 method_to_compile = method;
3210 if (try_generic_shared) {
3211 method_to_compile = mini_get_shared_method (method);
3212 g_assert (method_to_compile);
3214 method_to_compile = method;
3218 cfg = g_new0 (MonoCompile, 1);
3219 cfg->method = method_to_compile;
3220 cfg->header = mono_method_get_header (cfg->method);
3221 cfg->mempool = mono_mempool_new ();
3223 cfg->prof_options = mono_profiler_get_events ();
3224 cfg->run_cctors = run_cctors;
3225 cfg->domain = domain;
3226 cfg->verbose_level = mini_verbose;
3227 cfg->compile_aot = compile_aot;
3228 cfg->full_aot = full_aot;
3229 cfg->skip_visibility = method->skip_visibility;
3230 cfg->orig_method = method;
3231 cfg->gen_seq_points = debug_options.gen_seq_points_compact_data || debug_options.gen_sdb_seq_points;
3232 cfg->gen_sdb_seq_points = debug_options.gen_sdb_seq_points;
3234 #ifdef PLATFORM_ANDROID
3235 if (cfg->method->wrapper_type != MONO_WRAPPER_NONE) {
3236 /* FIXME: Why is this needed */
3237 cfg->gen_seq_points = FALSE;
3238 cfg->gen_sdb_seq_points = FALSE;
3241 /* coop / nacl requires loop detection to happen */
3242 #if defined(__native_client_codegen__) || defined(USE_COOP_GC)
3243 cfg->opt |= MONO_OPT_LOOP;
3246 cfg->explicit_null_checks = debug_options.explicit_null_checks;
3247 cfg->soft_breakpoints = debug_options.soft_breakpoints;
3248 cfg->check_pinvoke_callconv = debug_options.check_pinvoke_callconv;
3249 cfg->disable_direct_icalls = disable_direct_icalls;
3250 if (try_generic_shared)
3251 cfg->gshared = TRUE;
3252 cfg->compile_llvm = try_llvm;
3253 cfg->token_info_hash = g_hash_table_new (NULL, NULL);
3254 if (cfg->compile_aot)
3255 cfg->method_index = aot_method_index;
3257 if (!mono_debug_count ())
3258 cfg->opt &= ~MONO_OPT_FLOAT32;
3259 cfg->r4fp = (cfg->opt & MONO_OPT_FLOAT32) ? 1 : 0;
3260 cfg->r4_stack_type = cfg->r4fp ? STACK_R4 : STACK_R8;
3262 if (cfg->gen_seq_points)
3263 cfg->seq_points = g_ptr_array_new ();
3264 mono_error_init (&cfg->error);
3266 if (cfg->compile_aot && !try_generic_shared && (method->is_generic || method->klass->generic_container || method_is_gshared)) {
3267 cfg->exception_type = MONO_EXCEPTION_GENERIC_SHARING_FAILED;
3271 if (cfg->gshared && (gsharedvt_method || mini_is_gsharedvt_sharable_method (method))) {
3272 MonoMethodInflated *inflated;
3273 MonoGenericContext *context;
3275 if (gsharedvt_method) {
3276 g_assert (method->is_inflated);
3277 inflated = (MonoMethodInflated*)method;
3278 context = &inflated->context;
3280 /* We are compiling a gsharedvt method directly */
3281 g_assert (compile_aot);
3283 g_assert (method_to_compile->is_inflated);
3284 inflated = (MonoMethodInflated*)method_to_compile;
3285 context = &inflated->context;
3288 mini_init_gsctx (NULL, cfg->mempool, context, &cfg->gsctx);
3289 cfg->gsctx_context = context;
3291 cfg->gsharedvt = TRUE;
3293 cfg->disable_llvm = TRUE;
3294 cfg->exception_message = g_strdup ("gsharedvt");
3298 method_to_register = method_to_compile;
3300 g_assert (method == method_to_compile);
3301 method_to_register = method;
3303 cfg->method_to_register = method_to_register;
3305 mono_error_init (&err);
3306 sig = mono_method_signature_checked (cfg->method, &err);
3308 cfg->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3309 cfg->exception_message = g_strdup (mono_error_get_message (&err));
3310 mono_error_cleanup (&err);
3311 if (MONO_METHOD_COMPILE_END_ENABLED ())
3312 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3316 header = cfg->header;
3318 MonoLoaderError *error;
3320 if ((error = mono_loader_get_last_error ())) {
3321 cfg->exception_type = error->exception_type;
3323 cfg->exception_type = MONO_EXCEPTION_INVALID_PROGRAM;
3324 cfg->exception_message = g_strdup_printf ("Missing or incorrect header for method %s", cfg->method->name);
3326 if (MONO_METHOD_COMPILE_END_ENABLED ())
3327 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3333 static gboolean inited;
3339 * Check for methods which cannot be compiled by LLVM early, to avoid
3340 * the extra compilation pass.
3342 if (COMPILE_LLVM (cfg)) {
3343 mono_llvm_check_method_supported (cfg);
3344 if (cfg->disable_llvm) {
3345 if (cfg->verbose_level >= 1) {
3346 //nm = mono_method_full_name (cfg->method, TRUE);
3347 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3350 mono_destroy_compile (cfg);
3352 goto restart_compile;
3358 /* The debugger has no liveness information, so avoid sharing registers/stack slots */
3359 if (debug_options.mdb_optimizations) {
3360 cfg->disable_reuse_registers = TRUE;
3361 cfg->disable_reuse_stack_slots = TRUE;
3363 * This decreases the change the debugger will read registers/stack slots which are
3364 * not yet initialized.
3366 cfg->disable_initlocals_opt = TRUE;
3368 cfg->extend_live_ranges = TRUE;
3370 /* Temporarily disable this when running in the debugger until we have support
3371 * for this in the debugger. */
3372 /* This is no longer needed with sdb */
3373 //cfg->disable_omit_fp = TRUE;
3375 /* The debugger needs all locals to be on the stack or in a global register */
3376 cfg->disable_vreg_to_lvreg = TRUE;
3378 /* Don't remove unused variables when running inside the debugger since the user
3379 * may still want to view them. */
3380 cfg->disable_deadce_vars = TRUE;
3382 // cfg->opt |= MONO_OPT_SHARED;
3383 cfg->opt &= ~MONO_OPT_DEADCE;
3384 cfg->opt &= ~MONO_OPT_INLINE;
3385 cfg->opt &= ~MONO_OPT_COPYPROP;
3386 cfg->opt &= ~MONO_OPT_CONSPROP;
3387 /* This is no longer needed with sdb */
3388 //cfg->opt &= ~MONO_OPT_GSHARED;
3390 /* This is needed for the soft debugger, which doesn't like code after the epilog */
3391 cfg->disable_out_of_line_bblocks = TRUE;
3394 if (mono_using_xdebug) {
3396 * Make each variable use its own register/stack slot and extend
3397 * their liveness to cover the whole method, making them displayable
3398 * in gdb even after they are dead.
3400 cfg->disable_reuse_registers = TRUE;
3401 cfg->disable_reuse_stack_slots = TRUE;
3402 cfg->extend_live_ranges = TRUE;
3403 cfg->compute_precise_live_ranges = TRUE;
3406 mini_gc_init_cfg (cfg);
3408 if (COMPILE_LLVM (cfg)) {
3409 cfg->opt |= MONO_OPT_ABCREM;
3412 if (!verbose_method_inited) {
3413 verbose_method_name = g_getenv ("MONO_VERBOSE_METHOD");
3414 verbose_method_inited = TRUE;
3416 if (verbose_method_name) {
3417 const char *name = verbose_method_name;
3419 if ((strchr (name, '.') > name) || strchr (name, ':')) {
3420 MonoMethodDesc *desc;
3422 desc = mono_method_desc_new (name, TRUE);
3423 if (mono_method_desc_full_match (desc, cfg->method)) {
3424 cfg->verbose_level = 4;
3426 mono_method_desc_free (desc);
3428 if (strcmp (cfg->method->name, name) == 0)
3429 cfg->verbose_level = 4;
3433 cfg->intvars = mono_mempool_alloc0 (cfg->mempool, sizeof (guint16) * STACK_MAX * header->max_stack);
3435 if (cfg->verbose_level > 0) {
3438 method_name = mono_method_full_name (method, TRUE);
3439 g_print ("converting %s%s%smethod %s\n", COMPILE_LLVM (cfg) ? "llvm " : "", cfg->gsharedvt ? "gsharedvt " : "", (cfg->gshared && !cfg->gsharedvt) ? "gshared " : "", method_name);
3441 if (COMPILE_LLVM (cfg))
3442 g_print ("converting llvm method %s\n", method_name = mono_method_full_name (method, TRUE));
3443 else if (cfg->gsharedvt)
3444 g_print ("converting gsharedvt method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3445 else if (cfg->gshared)
3446 g_print ("converting shared method %s\n", method_name = mono_method_full_name (method_to_compile, TRUE));
3448 g_print ("converting method %s\n", method_name = mono_method_full_name (method, TRUE));
3450 g_free (method_name);
3453 if (cfg->opt & MONO_OPT_ABCREM)
3454 cfg->opt |= MONO_OPT_SSA;
3456 cfg->rs = mono_regstate_new ();
3457 cfg->next_vreg = cfg->rs->next_vreg;
3459 /* FIXME: Fix SSA to handle branches inside bblocks */
3460 if (cfg->opt & MONO_OPT_SSA)
3461 cfg->enable_extended_bblocks = FALSE;
3464 * FIXME: This confuses liveness analysis because variables which are assigned after
3465 * a branch inside a bblock become part of the kill set, even though the assignment
3466 * might not get executed. This causes the optimize_initlocals pass to delete some
3467 * assignments which are needed.
3468 * Also, the mono_if_conversion pass needs to be modified to recognize the code
3471 //cfg->enable_extended_bblocks = TRUE;
3473 /*We must verify the method before doing any IR generation as mono_compile_create_vars can assert.*/
3474 if (mono_compile_is_broken (cfg, cfg->method, TRUE)) {
3475 if (mini_get_debug_options ()->break_on_unverified)
3481 * create MonoInst* which represents arguments and local variables
3483 mono_compile_create_vars (cfg);
3485 i = mono_method_to_ir (cfg, method_to_compile, NULL, NULL, NULL, NULL, 0, FALSE);
3488 if (try_generic_shared && cfg->exception_type == MONO_EXCEPTION_GENERIC_SHARING_FAILED) {
3490 if (MONO_METHOD_COMPILE_END_ENABLED ())
3491 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3494 mono_destroy_compile (cfg);
3495 try_generic_shared = FALSE;
3496 goto restart_compile;
3498 g_assert (cfg->exception_type != MONO_EXCEPTION_GENERIC_SHARING_FAILED);
3500 if (MONO_METHOD_COMPILE_END_ENABLED ())
3501 MONO_PROBE_METHOD_COMPILE_END (method, FALSE);
3502 /* cfg contains the details of the failure, so let the caller cleanup */
3506 cfg->stat_basic_blocks += cfg->num_bblocks;
3508 if (COMPILE_LLVM (cfg)) {
3511 /* The IR has to be in SSA form for LLVM */
3512 cfg->opt |= MONO_OPT_SSA;
3516 // Allow SSA on the result value
3517 cfg->ret->flags &= ~MONO_INST_VOLATILE;
3519 // Add an explicit return instruction referencing the return value
3520 MONO_INST_NEW (cfg, ins, OP_SETRET);
3521 ins->sreg1 = cfg->ret->dreg;
3523 MONO_ADD_INS (cfg->bb_exit, ins);
3526 cfg->opt &= ~MONO_OPT_LINEARS;
3529 cfg->opt &= ~MONO_OPT_BRANCH;
3532 /* todo: remove code when we have verified that the liveness for try/catch blocks
3536 * Currently, this can't be commented out since exception blocks are not
3537 * processed during liveness analysis.
3538 * It is also needed, because otherwise the local optimization passes would
3539 * delete assignments in cases like this:
3541 * <something which throws>
3543 * This also allows SSA to be run on methods containing exception clauses, since
3544 * SSA will ignore variables marked VOLATILE.
3546 mono_liveness_handle_exception_clauses (cfg);
3548 mono_handle_out_of_line_bblock (cfg);
3550 /*g_print ("numblocks = %d\n", cfg->num_bblocks);*/
3552 if (!COMPILE_LLVM (cfg))
3553 mono_decompose_long_opts (cfg);
3555 /* Should be done before branch opts */
3556 if (cfg->opt & (MONO_OPT_CONSPROP | MONO_OPT_COPYPROP))
3557 mono_local_cprop (cfg);
3559 if (cfg->opt & MONO_OPT_BRANCH)
3560 mono_optimize_branches (cfg);
3562 /* This must be done _before_ global reg alloc and _after_ decompose */
3563 mono_handle_global_vregs (cfg);
3564 if (cfg->opt & MONO_OPT_DEADCE)
3565 mono_local_deadce (cfg);
3566 if (cfg->opt & MONO_OPT_ALIAS_ANALYSIS)
3567 mono_local_alias_analysis (cfg);
3568 /* Disable this for LLVM to make the IR easier to handle */
3569 if (!COMPILE_LLVM (cfg))
3570 mono_if_conversion (cfg);
3572 /* Depth-first ordering on basic blocks */
3573 cfg->bblocks = mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * (cfg->num_bblocks + 1));
3575 cfg->max_block_num = cfg->num_bblocks;
3578 df_visit (cfg->bb_entry, &dfn, cfg->bblocks);
3579 if (cfg->num_bblocks != dfn + 1) {
3582 cfg->num_bblocks = dfn + 1;
3584 /* remove unreachable code, because the code in them may be
3585 * inconsistent (access to dead variables for example) */
3586 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3587 bb->flags &= ~BB_VISITED;
3588 compute_reachable (cfg->bb_entry);
3589 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3590 if (bb->flags & BB_EXCEPTION_HANDLER)
3591 compute_reachable (bb);
3592 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3593 if (!(bb->flags & BB_VISITED)) {
3594 if (cfg->verbose_level > 1)
3595 g_print ("found unreachable code in BB%d\n", bb->block_num);
3596 bb->code = bb->last_ins = NULL;
3597 while (bb->out_count)
3598 mono_unlink_bblock (cfg, bb, bb->out_bb [0]);
3601 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
3602 bb->flags &= ~BB_VISITED;
3605 if (((cfg->num_varinfo > 2000) || (cfg->num_bblocks > 1000)) && !cfg->compile_aot) {
3607 * we disable some optimizations if there are too many variables
3608 * because JIT time may become too expensive. The actual number needs
3609 * to be tweaked and eventually the non-linear algorithms should be fixed.
3611 cfg->opt &= ~ (MONO_OPT_LINEARS | MONO_OPT_COPYPROP | MONO_OPT_CONSPROP);
3612 cfg->disable_ssa = TRUE;
3615 if (cfg->opt & MONO_OPT_LOOP) {
3616 mono_compile_dominator_info (cfg, MONO_COMP_DOM | MONO_COMP_IDOM);
3617 mono_compute_natural_loops (cfg);
3620 mono_insert_safepoints (cfg);
3622 /* after method_to_ir */
3624 if (MONO_METHOD_COMPILE_END_ENABLED ())
3625 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3630 if (header->num_clauses)
3631 cfg->disable_ssa = TRUE;
3634 //#define DEBUGSSA "logic_run"
3635 //#define DEBUGSSA_CLASS "Tests"
3638 if (!cfg->disable_ssa) {
3639 mono_local_cprop (cfg);
3642 mono_ssa_compute (cfg);
3646 if (cfg->opt & MONO_OPT_SSA) {
3647 if (!(cfg->comp_done & MONO_COMP_SSA) && !cfg->disable_ssa) {
3649 mono_ssa_compute (cfg);
3652 if (cfg->verbose_level >= 2) {
3659 /* after SSA translation */
3661 if (MONO_METHOD_COMPILE_END_ENABLED ())
3662 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3666 if ((cfg->opt & MONO_OPT_CONSPROP) || (cfg->opt & MONO_OPT_COPYPROP)) {
3667 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3669 mono_ssa_cprop (cfg);
3675 if (cfg->comp_done & MONO_COMP_SSA && !COMPILE_LLVM (cfg)) {
3676 //mono_ssa_strength_reduction (cfg);
3678 if (cfg->opt & MONO_OPT_DEADCE)
3679 mono_ssa_deadce (cfg);
3681 if ((cfg->flags & (MONO_CFG_HAS_LDELEMA|MONO_CFG_HAS_CHECK_THIS)) && (cfg->opt & MONO_OPT_ABCREM))
3682 mono_perform_abc_removal (cfg);
3684 mono_ssa_remove (cfg);
3685 mono_local_cprop (cfg);
3686 mono_handle_global_vregs (cfg);
3687 if (cfg->opt & MONO_OPT_DEADCE)
3688 mono_local_deadce (cfg);
3690 if (cfg->opt & MONO_OPT_BRANCH)
3691 mono_optimize_branches (cfg);
3695 if (cfg->comp_done & MONO_COMP_SSA && COMPILE_LLVM (cfg)) {
3696 mono_ssa_loop_invariant_code_motion (cfg);
3697 /* This removes MONO_INST_FAULT flags too so perform it unconditionally */
3698 if (cfg->opt & MONO_OPT_ABCREM)
3699 mono_perform_abc_removal (cfg);
3702 /* after SSA removal */
3704 if (MONO_METHOD_COMPILE_END_ENABLED ())
3705 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3709 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
3710 if (COMPILE_SOFT_FLOAT (cfg))
3711 mono_decompose_soft_float (cfg);
3713 if (COMPILE_LLVM (cfg))
3714 mono_decompose_vtype_opts_llvm (cfg);
3716 mono_decompose_vtype_opts (cfg);
3717 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3718 mono_decompose_array_access_opts (cfg);
3721 #ifndef MONO_ARCH_GOT_REG
3726 g_assert (cfg->got_var_allocated);
3729 * Allways allocate the GOT var to a register, because keeping it
3730 * in memory will increase the number of live temporaries in some
3731 * code created by inssel.brg, leading to the well known spills+
3732 * branches problem. Testcase: mcs crash in
3733 * System.MonoCustomAttrs:GetCustomAttributes.
3735 #ifdef MONO_ARCH_GOT_REG
3736 got_reg = MONO_ARCH_GOT_REG;
3738 regs = mono_arch_get_global_int_regs (cfg);
3740 got_reg = GPOINTER_TO_INT (regs->data);
3743 cfg->got_var->opcode = OP_REGVAR;
3744 cfg->got_var->dreg = got_reg;
3745 cfg->used_int_regs |= 1LL << cfg->got_var->dreg;
3749 * Have to call this again to process variables added since the first call.
3751 mono_liveness_handle_exception_clauses (cfg);
3753 if (cfg->opt & MONO_OPT_LINEARS) {
3754 GList *vars, *regs, *l;
3756 /* fixme: maybe we can avoid to compute livenesss here if already computed ? */
3757 cfg->comp_done &= ~MONO_COMP_LIVENESS;
3758 if (!(cfg->comp_done & MONO_COMP_LIVENESS))
3759 mono_analyze_liveness (cfg);
3761 if ((vars = mono_arch_get_allocatable_int_vars (cfg))) {
3762 regs = mono_arch_get_global_int_regs (cfg);
3763 /* Remove the reg reserved for holding the GOT address */
3765 for (l = regs; l; l = l->next) {
3766 if (GPOINTER_TO_UINT (l->data) == cfg->got_var->dreg) {
3767 regs = g_list_delete_link (regs, l);
3772 mono_linear_scan (cfg, vars, regs, &cfg->used_int_regs);
3776 //mono_print_code (cfg, "");
3780 /* variables are allocated after decompose, since decompose could create temps */
3781 if (!COMPILE_LLVM (cfg)) {
3782 mono_arch_allocate_vars (cfg);
3783 if (cfg->exception_type)
3789 gboolean need_local_opts;
3791 if (!COMPILE_LLVM (cfg)) {
3792 mono_spill_global_vars (cfg, &need_local_opts);
3794 if (need_local_opts || cfg->compile_aot) {
3795 /* To optimize code created by spill_global_vars */
3796 mono_local_cprop (cfg);
3797 if (cfg->opt & MONO_OPT_DEADCE)
3798 mono_local_deadce (cfg);
3802 /* Add branches between non-consecutive bblocks */
3803 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3804 if (bb->last_ins && MONO_IS_COND_BRANCH_OP (bb->last_ins) &&
3805 bb->last_ins->inst_false_bb && bb->next_bb != bb->last_ins->inst_false_bb) {
3806 /* we are careful when inverting, since bugs like #59580
3807 * could show up when dealing with NaNs.
3809 if (MONO_IS_COND_BRANCH_NOFP(bb->last_ins) && bb->next_bb == bb->last_ins->inst_true_bb) {
3810 MonoBasicBlock *tmp = bb->last_ins->inst_true_bb;
3811 bb->last_ins->inst_true_bb = bb->last_ins->inst_false_bb;
3812 bb->last_ins->inst_false_bb = tmp;
3814 bb->last_ins->opcode = mono_reverse_branch_op (bb->last_ins->opcode);
3816 MonoInst *inst = mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst));
3817 inst->opcode = OP_BR;
3818 inst->inst_target_bb = bb->last_ins->inst_false_bb;
3819 mono_bblock_add_inst (bb, inst);
3824 if (cfg->verbose_level >= 4) {
3825 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3826 MonoInst *tree = bb->code;
3827 g_print ("DUMP BLOCK %d:\n", bb->block_num);
3830 for (; tree; tree = tree->next) {
3831 mono_print_ins_index (-1, tree);
3837 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
3838 bb->max_vreg = cfg->next_vreg;
3842 if (COMPILE_LLVM (cfg)) {
3846 /* The IR has to be in SSA form for LLVM */
3847 if (!(cfg->comp_done & MONO_COMP_SSA)) {
3848 cfg->exception_message = g_strdup ("SSA disabled.");
3849 cfg->disable_llvm = TRUE;
3852 if (cfg->flags & MONO_CFG_HAS_ARRAY_ACCESS)
3853 mono_decompose_array_access_opts (cfg);
3855 if (!cfg->disable_llvm)
3856 mono_llvm_emit_method (cfg);
3857 if (cfg->disable_llvm) {
3858 if (cfg->verbose_level >= 1) {
3859 //nm = mono_method_full_name (cfg->method, TRUE);
3860 printf ("LLVM failed for '%s': %s\n", method->name, cfg->exception_message);
3863 mono_destroy_compile (cfg);
3865 goto restart_compile;
3868 if (cfg->verbose_level > 0 && !cfg->compile_aot) {
3869 nm = mono_method_full_name (cfg->method, TRUE);
3870 g_print ("LLVM Method %s emitted at %p to %p (code length %d) [%s]\n",
3872 cfg->native_code, cfg->native_code + cfg->code_len, cfg->code_len, cfg->domain->friendly_name);
3880 if (COMPILE_LLVM (cfg))
3881 InterlockedIncrement (&mono_jit_stats.methods_with_llvm);
3883 InterlockedIncrement (&mono_jit_stats.methods_without_llvm);
3885 cfg->jit_info = create_jit_info (cfg, method_to_compile);
3887 #ifdef MONO_ARCH_HAVE_LIVERANGE_OPS
3888 if (cfg->extend_live_ranges) {
3889 /* Extend live ranges to cover the whole method */
3890 for (i = 0; i < cfg->num_varinfo; ++i)
3891 MONO_VARINFO (cfg, i)->live_range_end = cfg->code_len;
3895 if (!cfg->compile_aot)
3896 mono_save_xdebug_info (cfg);
3898 mini_gc_create_gc_map (cfg);
3900 mono_save_seq_point_info (cfg);
3902 if (cfg->verbose_level >= 2) {
3903 char *id = mono_method_full_name (cfg->method, FALSE);
3904 mono_disassemble_code (cfg, cfg->native_code, cfg->code_len, id + 3);
3908 if (!cfg->compile_aot) {
3909 mono_domain_lock (cfg->domain);
3910 mono_jit_info_table_add (cfg->domain, cfg->jit_info);
3912 if (cfg->method->dynamic)
3913 mono_dynamic_code_hash_lookup (cfg->domain, cfg->method)->ji = cfg->jit_info;
3914 mono_domain_unlock (cfg->domain);
3919 printf ("GSHAREDVT: %s\n", mono_method_full_name (cfg->method, TRUE));
3922 /* collect statistics */
3923 #ifndef DISABLE_PERFCOUNTERS
3924 mono_perfcounters->jit_methods++;
3925 mono_perfcounters->jit_bytes += header->code_size;
3927 mono_jit_stats.allocated_code_size += cfg->code_len;
3928 code_size_ratio = cfg->code_len;
3929 if (code_size_ratio > mono_jit_stats.biggest_method_size && mono_jit_stats.enabled) {
3930 mono_jit_stats.biggest_method_size = code_size_ratio;
3931 g_free (mono_jit_stats.biggest_method);
3932 mono_jit_stats.biggest_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3934 code_size_ratio = (code_size_ratio * 100) / header->code_size;
3935 if (code_size_ratio > mono_jit_stats.max_code_size_ratio && mono_jit_stats.enabled) {
3936 mono_jit_stats.max_code_size_ratio = code_size_ratio;
3937 g_free (mono_jit_stats.max_ratio_method);
3938 mono_jit_stats.max_ratio_method = g_strdup_printf ("%s::%s)", method->klass->name, method->name);
3940 mono_jit_stats.native_code_size += cfg->code_len;
3942 if (MONO_METHOD_COMPILE_END_ENABLED ())
3943 MONO_PROBE_METHOD_COMPILE_END (method, TRUE);
3951 mini_method_compile (MonoMethod *method, guint32 opts, MonoDomain *domain, JitFlags flags, int parts, int aot_method_index)
3953 g_assert_not_reached ();
3957 #endif /* DISABLE_JIT */
3960 mono_jit_compile_method_inner (MonoMethod *method, MonoDomain *target_domain, int opt, MonoException **jit_ex)
3963 gpointer code = NULL;
3964 MonoJitInfo *jinfo, *info;
3966 MonoException *ex = NULL;
3967 guint32 prof_options;
3969 MonoMethod *prof_method, *shared;
3971 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
3972 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
3974 MonoMethodPInvoke* piinfo = (MonoMethodPInvoke *) method;
3976 if (!piinfo->addr) {
3977 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL)
3978 piinfo->addr = mono_lookup_internal_call (method);
3979 else if (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)
3981 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);
3983 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);
3986 mono_lookup_pinvoke_call (method, NULL, NULL);
3988 nm = mono_marshal_get_native_wrapper (method, TRUE, mono_aot_only);
3989 code = mono_get_addr_from_ftnptr (mono_compile_method (nm));
3990 jinfo = mono_jit_info_table_find (target_domain, code);
3992 jinfo = mono_jit_info_table_find (mono_domain_get (), code);
3994 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
3996 } else if ((method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
3997 const char *name = method->name;
3998 char *full_name, *msg;
4001 if (method->klass->parent == mono_defaults.multicastdelegate_class) {
4002 if (*name == '.' && (strcmp (name, ".ctor") == 0)) {
4003 MonoJitICallInfo *mi = mono_find_jit_icall_by_name ("mono_delegate_ctor");
4006 * We need to make sure this wrapper
4007 * is compiled because it might end up
4008 * in an (M)RGCTX if generic sharing
4009 * is enabled, and would be called
4010 * indirectly. If it were a
4011 * trampoline we'd try to patch that
4012 * indirect call, which is not
4015 return mono_get_addr_from_ftnptr ((gpointer)mono_icall_get_wrapper_full (mi, TRUE));
4016 } else if (*name == 'I' && (strcmp (name, "Invoke") == 0)) {
4017 return mono_create_delegate_trampoline (target_domain, method->klass);
4018 } else if (*name == 'B' && (strcmp (name, "BeginInvoke") == 0)) {
4019 nm = mono_marshal_get_delegate_begin_invoke (method);
4020 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4021 } else if (*name == 'E' && (strcmp (name, "EndInvoke") == 0)) {
4022 nm = mono_marshal_get_delegate_end_invoke (method);
4023 return mono_get_addr_from_ftnptr (mono_compile_method (nm));
4027 full_name = mono_method_full_name (method, TRUE);
4028 msg = g_strdup_printf ("Unrecognizable runtime implemented method '%s'", full_name);
4029 *jit_ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", msg);
4035 if (method->wrapper_type == MONO_WRAPPER_UNKNOWN) {
4036 WrapperInfo *info = mono_marshal_get_wrapper_info (method);
4038 if (info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN || info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_OUT) {
4039 static MonoTrampInfo *in_tinfo, *out_tinfo;
4040 MonoTrampInfo *tinfo;
4042 gboolean is_in = info->subtype == WRAPPER_SUBTYPE_GSHAREDVT_IN;
4044 if (is_in && in_tinfo)
4045 return in_tinfo->code;
4046 else if (!is_in && out_tinfo)
4047 return out_tinfo->code;
4050 * This is a special wrapper whose body is implemented in assembly, like a trampoline. We use a wrapper so EH
4052 * FIXME: The caller signature doesn't match the callee, which might cause problems on some platforms
4055 mono_aot_get_trampoline_full (is_in ? "gsharedvt_trampoline" : "gsharedvt_out_trampoline", &tinfo);
4057 mono_arch_get_gsharedvt_trampoline (&tinfo, FALSE);
4058 jinfo = create_jit_info_for_trampoline (method, tinfo);
4059 mono_jit_info_table_add (mono_get_root_domain (), jinfo);
4068 if (mono_aot_only) {
4069 char *fullname = mono_method_full_name (method, TRUE);
4070 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);
4072 *jit_ex = mono_get_exception_execution_engine (msg);
4079 jit_timer = g_timer_new ();
4081 cfg = mini_method_compile (method, opt, target_domain, JIT_FLAG_RUN_CCTORS, 0, -1);
4082 prof_method = cfg->method;
4084 g_timer_stop (jit_timer);
4085 mono_jit_stats.jit_time += g_timer_elapsed (jit_timer, NULL);
4086 g_timer_destroy (jit_timer);
4088 switch (cfg->exception_type) {
4089 case MONO_EXCEPTION_NONE:
4091 case MONO_EXCEPTION_TYPE_LOAD:
4092 case MONO_EXCEPTION_MISSING_FIELD:
4093 case MONO_EXCEPTION_MISSING_METHOD:
4094 case MONO_EXCEPTION_FILE_NOT_FOUND:
4095 case MONO_EXCEPTION_BAD_IMAGE: {
4096 /* Throw a type load exception if needed */
4097 MonoLoaderError *error = mono_loader_get_last_error ();
4100 ex = mono_loader_error_prepare_exception (error);
4102 if (cfg->exception_ptr) {
4103 ex = mono_class_get_exception_for_failure (cfg->exception_ptr);
4105 if (cfg->exception_type == MONO_EXCEPTION_MISSING_FIELD)
4106 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingFieldException", cfg->exception_message);
4107 else if (cfg->exception_type == MONO_EXCEPTION_MISSING_METHOD)
4108 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MissingMethodException", cfg->exception_message);
4109 else if (cfg->exception_type == MONO_EXCEPTION_TYPE_LOAD)
4110 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "TypeLoadException", cfg->exception_message);
4111 else if (cfg->exception_type == MONO_EXCEPTION_FILE_NOT_FOUND)
4112 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.IO", "FileNotFoundException", cfg->exception_message);
4113 else if (cfg->exception_type == MONO_EXCEPTION_BAD_IMAGE)
4114 ex = mono_get_exception_bad_image_format (cfg->exception_message);
4116 g_assert_not_reached ();
4121 case MONO_EXCEPTION_INVALID_PROGRAM:
4122 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "InvalidProgramException", cfg->exception_message);
4124 case MONO_EXCEPTION_UNVERIFIABLE_IL:
4125 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System.Security", "VerificationException", cfg->exception_message);
4127 case MONO_EXCEPTION_METHOD_ACCESS:
4128 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "MethodAccessException", cfg->exception_message);
4130 case MONO_EXCEPTION_FIELD_ACCESS:
4131 ex = mono_exception_from_name_msg (mono_defaults.corlib, "System", "FieldAccessException", cfg->exception_message);
4133 case MONO_EXCEPTION_OBJECT_SUPPLIED: {
4134 MonoException *exp = cfg->exception_ptr;
4135 MONO_GC_UNREGISTER_ROOT (cfg->exception_ptr);
4140 case MONO_EXCEPTION_OUT_OF_MEMORY:
4141 ex = mono_domain_get ()->out_of_memory_ex;
4143 case MONO_EXCEPTION_MONO_ERROR:
4144 g_assert (!mono_error_ok (&cfg->error));
4145 ex = mono_error_convert_to_exception (&cfg->error);
4148 g_assert_not_reached ();
4152 if (cfg->prof_options & MONO_PROFILE_JIT_COMPILATION)
4153 mono_profiler_method_end_jit (method, NULL, MONO_PROFILE_FAILED);
4155 mono_destroy_compile (cfg);
4161 if (mono_method_is_generic_sharable (method, FALSE))
4162 shared = mini_get_shared_method (method);
4166 mono_domain_lock (target_domain);
4168 /* Check if some other thread already did the job. In this case, we can
4169 discard the code this thread generated. */
4171 info = mini_lookup_method (target_domain, method, shared);
4173 /* We can't use a domain specific method in another domain */
4174 if ((target_domain == mono_domain_get ()) || info->domain_neutral) {
4175 code = info->code_start;
4176 // printf("Discarding code for method %s\n", method->name);
4180 /* The lookup + insert is atomic since this is done inside the domain lock */
4181 mono_domain_jit_code_hash_lock (target_domain);
4182 mono_internal_hash_table_insert (&target_domain->jit_code_hash, cfg->jit_info->d.method, cfg->jit_info);
4183 mono_domain_jit_code_hash_unlock (target_domain);
4185 code = cfg->native_code;
4187 if (cfg->gshared && mono_method_is_generic_sharable (method, FALSE))
4188 mono_stats.generics_shared_methods++;
4190 mono_stats.gsharedvt_methods++;
4193 jinfo = cfg->jit_info;
4195 prof_options = cfg->prof_options;
4198 * Update global stats while holding a lock, instead of doing many
4199 * InterlockedIncrement operations during JITting.
4201 mono_jit_stats.allocate_var += cfg->stat_allocate_var;
4202 mono_jit_stats.locals_stack_size += cfg->stat_locals_stack_size;
4203 mono_jit_stats.basic_blocks += cfg->stat_basic_blocks;
4204 mono_jit_stats.max_basic_blocks = MAX (cfg->stat_basic_blocks, mono_jit_stats.max_basic_blocks);
4205 mono_jit_stats.cil_code_size += cfg->stat_cil_code_size;
4206 mono_jit_stats.regvars += cfg->stat_n_regvars;
4207 mono_jit_stats.inlineable_methods += cfg->stat_inlineable_methods;
4208 mono_jit_stats.inlined_methods += cfg->stat_inlined_methods;
4209 mono_jit_stats.code_reallocs += cfg->stat_code_reallocs;
4211 mono_destroy_compile (cfg);
4214 if (domain_jit_info (target_domain)->jump_target_hash) {
4215 MonoJumpInfo patch_info;
4216 MonoJumpList *jlist;
4218 jlist = g_hash_table_lookup (domain_jit_info (target_domain)->jump_target_hash, method);
4220 patch_info.next = NULL;
4221 patch_info.ip.i = 0;
4222 patch_info.type = MONO_PATCH_INFO_METHOD_JUMP;
4223 patch_info.data.method = method;
4224 g_hash_table_remove (domain_jit_info (target_domain)->jump_target_hash, method);
4226 #if defined(__native_client_codegen__) && defined(__native_client__)
4227 /* These patches are applied after a method has been installed, no target munging is needed. */
4228 nacl_allow_target_modification (FALSE);
4230 #ifdef MONO_ARCH_HAVE_PATCH_CODE_NEW
4231 for (tmp = jlist->list; tmp; tmp = tmp->next) {
4232 gpointer target = mono_resolve_patch_target (NULL, target_domain, tmp->data, &patch_info, TRUE);
4233 mono_arch_patch_code_new (NULL, target_domain, tmp->data, &patch_info, target);
4236 for (tmp = jlist->list; tmp; tmp = tmp->next)
4237 mono_arch_patch_code (NULL, NULL, target_domain, tmp->data, &patch_info, TRUE);
4239 #if defined(__native_client_codegen__) && defined(__native_client__)
4240 nacl_allow_target_modification (TRUE);
4245 mono_emit_jit_map (jinfo);
4247 mono_domain_unlock (target_domain);
4249 vtable = mono_class_vtable (target_domain, method->klass);
4251 ex = mono_class_get_exception_for_failure (method->klass);
4257 if (prof_options & MONO_PROFILE_JIT_COMPILATION) {
4258 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
4259 if (mono_marshal_method_from_wrapper (method)) {
4260 /* Native func wrappers have no method */
4261 /* The profiler doesn't know about wrappers, so pass the original icall method */
4262 mono_profiler_method_end_jit (mono_marshal_method_from_wrapper (method), jinfo, MONO_PROFILE_OK);
4265 mono_profiler_method_end_jit (method, jinfo, MONO_PROFILE_OK);
4266 if (prof_method != method) {
4267 mono_profiler_method_end_jit (prof_method, jinfo, MONO_PROFILE_OK);
4271 ex = mono_runtime_class_init_full (vtable, FALSE);
4282 mono_arch_instrument_epilog (MonoCompile *cfg, void *func, void *p, gboolean enable_arguments) {
4283 return mono_arch_instrument_epilog_full (cfg, func, p, enable_arguments, FALSE);
4287 mono_cfg_add_try_hole (MonoCompile *cfg, MonoExceptionClause *clause, guint8 *start, MonoBasicBlock *bb)
4289 TryBlockHole *hole = mono_mempool_alloc (cfg->mempool, sizeof (TryBlockHole));
4290 hole->clause = clause;
4291 hole->start_offset = start - cfg->native_code;
4292 hole->basic_block = bb;
4294 cfg->try_block_holes = g_slist_append_mempool (cfg->mempool, cfg->try_block_holes, hole);
4298 mono_cfg_set_exception (MonoCompile *cfg, int type)
4300 cfg->exception_type = type;
4305 /* Dummy versions of some arch specific functions to avoid ifdefs at call sites */
4307 #ifndef MONO_ARCH_GSHAREDVT_SUPPORTED
4310 mono_arch_gsharedvt_sig_supported (MonoMethodSignature *sig)
4316 mono_arch_get_gsharedvt_call_info (gpointer addr, MonoMethodSignature *normal_sig, MonoMethodSignature *gsharedvt_sig, gboolean gsharedvt_in, gint32 vcall_offset, gboolean calli)
4318 g_assert_not_reached ();
4323 mono_arch_get_gsharedvt_arg_trampoline (MonoDomain *domain, gpointer arg, gpointer addr)
4325 g_assert_not_reached ();
4330 mono_arch_get_gsharedvt_trampoline (MonoTrampInfo **info, gboolean aot)
4332 g_assert_not_reached ();
4338 #if defined(MONO_ARCH_GSHAREDVT_SUPPORTED) && !defined(ENABLE_GSHAREDVT)
4341 mono_arch_gsharedvt_sig_supported (MonoMethodSignature *sig)
4347 mono_arch_get_gsharedvt_call_info (gpointer addr, MonoMethodSignature *normal_sig, MonoMethodSignature *gsharedvt_sig, gboolean gsharedvt_in, gint32 vcall_offset, gboolean calli)
4357 mono_llvm_emit_aot_file_info (MonoAotFileInfo *info, gboolean has_jitted_code)
4359 g_assert_not_reached ();
4362 void mono_llvm_emit_aot_data (const char *symbol, guint8 *data, int data_len)
4364 g_assert_not_reached ();
4368 #ifdef USE_JUMP_TABLES
4369 #define DEFAULT_JUMPTABLE_CHUNK_ELEMENTS 128
4371 typedef struct MonoJumpTableChunk {
4374 struct MonoJumpTableChunk *previous;
4375 /* gpointer entries[total]; */
4376 } MonoJumpTableChunk;
4378 static MonoJumpTableChunk* g_jumptable;
4379 #define mono_jumptable_lock() mono_mutex_lock (&jumptable_mutex)
4380 #define mono_jumptable_unlock() mono_mutex_unlock (&jumptable_mutex)
4381 static mono_mutex_t jumptable_mutex;
4383 static MonoJumpTableChunk*
4384 mono_create_jumptable_chunk (guint32 max_entries)
4386 guint32 size = sizeof (MonoJumpTableChunk) + max_entries * sizeof(gpointer);
4387 MonoJumpTableChunk *chunk = (MonoJumpTableChunk*) g_new0 (guchar, size);
4388 chunk->total = max_entries;
4393 mono_jumptable_init (void)
4395 if (g_jumptable == NULL) {
4396 mono_mutex_init_recursive (&jumptable_mutex);
4397 g_jumptable = mono_create_jumptable_chunk (DEFAULT_JUMPTABLE_CHUNK_ELEMENTS);
4402 mono_jumptable_add_entry (void)
4404 return mono_jumptable_add_entries (1);
4408 mono_jumptable_add_entries (guint32 entries)
4413 mono_jumptable_init ();
4414 mono_jumptable_lock ();
4415 index = g_jumptable->active;
4416 if (index + entries >= g_jumptable->total) {
4418 * Grow jumptable, by adding one more chunk.
4419 * We cannot realloc jumptable, as there could be pointers
4420 * to existing jump table entries in the code, so instead
4421 * we just add one more chunk.
4423 guint32 max_entries = entries;
4424 MonoJumpTableChunk *new_chunk;
4426 if (max_entries < DEFAULT_JUMPTABLE_CHUNK_ELEMENTS)
4427 max_entries = DEFAULT_JUMPTABLE_CHUNK_ELEMENTS;
4428 new_chunk = mono_create_jumptable_chunk (max_entries);
4429 /* Link old jumptable, so that we could free it up later. */
4430 new_chunk->previous = g_jumptable;
4431 g_jumptable = new_chunk;
4434 g_jumptable->active = index + entries;
4435 result = (gpointer*)((guchar*)g_jumptable + sizeof(MonoJumpTableChunk)) + index;
4436 mono_jumptable_unlock();
4442 mono_jumptable_cleanup (void)
4445 MonoJumpTableChunk *current = g_jumptable, *prev;
4446 while (current != NULL) {
4447 prev = current->previous;
4452 mono_mutex_destroy (&jumptable_mutex);
4457 mono_jumptable_get_entry (guint8 *code_ptr)
4459 return mono_arch_jumptable_entry_from_code (code_ptr);
4464 * mini_get_underlying_type:
4466 * Return the type the JIT will use during compilation.
4467 * Handles: byref, enums, native types, generic sharing.
4468 * For gsharedvt types, it will return the original VAR/MVAR.
4471 mini_get_underlying_type (MonoType *type)
4473 return mini_type_get_underlying_type (type);
4477 mini_jit_init (void)
4479 mono_mutex_init_recursive (&jit_mutex);
4483 mini_jit_cleanup (void)
4485 g_free (emul_opcode_map);
4486 g_free (emul_opcode_opcodes);