2 * method-to-ir.c: Convert CIL to the JIT internal representation
5 * Paolo Molaro (lupus@ximian.com)
6 * Dietmar Maurer (dietmar@ximian.com)
8 * (C) 2002 Ximian, Inc.
9 * Copyright 2003-2010 Novell, Inc (http://www.novell.com)
10 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
15 #include <mono/utils/mono-compiler.h>
29 #ifdef HAVE_SYS_TIME_H
37 #include <mono/utils/memcheck.h>
39 #include <mono/metadata/abi-details.h>
40 #include <mono/metadata/assembly.h>
41 #include <mono/metadata/attrdefs.h>
42 #include <mono/metadata/loader.h>
43 #include <mono/metadata/tabledefs.h>
44 #include <mono/metadata/class.h>
45 #include <mono/metadata/object.h>
46 #include <mono/metadata/exception.h>
47 #include <mono/metadata/opcodes.h>
48 #include <mono/metadata/mono-endian.h>
49 #include <mono/metadata/tokentype.h>
50 #include <mono/metadata/tabledefs.h>
51 #include <mono/metadata/marshal.h>
52 #include <mono/metadata/debug-helpers.h>
53 #include <mono/metadata/mono-debug.h>
54 #include <mono/metadata/mono-debug-debugger.h>
55 #include <mono/metadata/gc-internals.h>
56 #include <mono/metadata/security-manager.h>
57 #include <mono/metadata/threads-types.h>
58 #include <mono/metadata/security-core-clr.h>
59 #include <mono/metadata/profiler-private.h>
60 #include <mono/metadata/profiler.h>
61 #include <mono/metadata/monitor.h>
62 #include <mono/metadata/debug-mono-symfile.h>
63 #include <mono/utils/mono-compiler.h>
64 #include <mono/utils/mono-memory-model.h>
65 #include <mono/utils/mono-error-internals.h>
66 #include <mono/metadata/mono-basic-block.h>
67 #include <mono/metadata/reflection-internals.h>
68 #include <mono/utils/mono-threads-coop.h>
74 #include "jit-icalls.h"
76 #include "debugger-agent.h"
77 #include "seq-points.h"
78 #include "aot-compiler.h"
79 #include "mini-llvm.h"
81 #define BRANCH_COST 10
82 #define INLINE_LENGTH_LIMIT 20
84 /* These have 'cfg' as an implicit argument */
85 #define INLINE_FAILURE(msg) do { \
86 if ((cfg->method != cfg->current_method) && (cfg->current_method->wrapper_type == MONO_WRAPPER_NONE)) { \
87 inline_failure (cfg, msg); \
88 goto exception_exit; \
91 #define CHECK_CFG_EXCEPTION do {\
92 if (cfg->exception_type != MONO_EXCEPTION_NONE) \
93 goto exception_exit; \
95 #define FIELD_ACCESS_FAILURE(method, field) do { \
96 field_access_failure ((cfg), (method), (field)); \
97 goto exception_exit; \
99 #define GENERIC_SHARING_FAILURE(opcode) do { \
100 if (cfg->gshared) { \
101 gshared_failure (cfg, opcode, __FILE__, __LINE__); \
102 goto exception_exit; \
105 #define GSHAREDVT_FAILURE(opcode) do { \
106 if (cfg->gsharedvt) { \
107 gsharedvt_failure (cfg, opcode, __FILE__, __LINE__); \
108 goto exception_exit; \
111 #define OUT_OF_MEMORY_FAILURE do { \
112 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR); \
113 mono_error_set_out_of_memory (&cfg->error, ""); \
114 goto exception_exit; \
116 #define DISABLE_AOT(cfg) do { \
117 if ((cfg)->verbose_level >= 2) \
118 printf ("AOT disabled: %s:%d\n", __FILE__, __LINE__); \
119 (cfg)->disable_aot = TRUE; \
121 #define LOAD_ERROR do { \
122 break_on_unverified (); \
123 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD); \
124 goto exception_exit; \
127 #define TYPE_LOAD_ERROR(klass) do { \
128 cfg->exception_ptr = klass; \
132 #define CHECK_CFG_ERROR do {\
133 if (!mono_error_ok (&cfg->error)) { \
134 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR); \
135 goto mono_error_exit; \
139 /* Determine whenever 'ins' represents a load of the 'this' argument */
140 #define MONO_CHECK_THIS(ins) (mono_method_signature (cfg->method)->hasthis && ((ins)->opcode == OP_MOVE) && ((ins)->sreg1 == cfg->args [0]->dreg))
142 static int ldind_to_load_membase (int opcode);
143 static int stind_to_store_membase (int opcode);
145 int mono_op_to_op_imm (int opcode);
146 int mono_op_to_op_imm_noemul (int opcode);
148 MONO_API MonoInst* mono_emit_native_call (MonoCompile *cfg, gconstpointer func, MonoMethodSignature *sig, MonoInst **args);
150 static int inline_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **sp,
151 guchar *ip, guint real_offset, gboolean inline_always);
153 emit_llvmonly_virtual_call (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, int context_used, MonoInst **sp);
155 inline static MonoInst*
156 mono_emit_calli (MonoCompile *cfg, MonoMethodSignature *sig, MonoInst **args, MonoInst *addr, MonoInst *imt_arg, MonoInst *rgctx_arg);
158 /* helper methods signatures */
159 static MonoMethodSignature *helper_sig_domain_get;
160 static MonoMethodSignature *helper_sig_rgctx_lazy_fetch_trampoline;
161 static MonoMethodSignature *helper_sig_llvmonly_imt_trampoline;
162 static MonoMethodSignature *helper_sig_jit_thread_attach;
163 static MonoMethodSignature *helper_sig_get_tls_tramp;
164 static MonoMethodSignature *helper_sig_set_tls_tramp;
166 /* type loading helpers */
167 static GENERATE_GET_CLASS_WITH_CACHE (runtime_helpers, System.Runtime.CompilerServices, RuntimeHelpers)
168 static GENERATE_TRY_GET_CLASS_WITH_CACHE (debuggable_attribute, System.Diagnostics, DebuggableAttribute)
171 * Instruction metadata
179 #define MINI_OP(a,b,dest,src1,src2) dest, src1, src2, ' ',
180 #define MINI_OP3(a,b,dest,src1,src2,src3) dest, src1, src2, src3,
186 #if SIZEOF_REGISTER == 8 && SIZEOF_REGISTER == SIZEOF_VOID_P
191 /* keep in sync with the enum in mini.h */
194 #include "mini-ops.h"
199 #define MINI_OP(a,b,dest,src1,src2) ((src2) != NONE ? 2 : ((src1) != NONE ? 1 : 0)),
200 #define MINI_OP3(a,b,dest,src1,src2,src3) ((src3) != NONE ? 3 : ((src2) != NONE ? 2 : ((src1) != NONE ? 1 : 0))),
202 * This should contain the index of the last sreg + 1. This is not the same
203 * as the number of sregs for opcodes like IA64_CMP_EQ_IMM.
205 const gint8 ins_sreg_counts[] = {
206 #include "mini-ops.h"
211 #define MONO_INIT_VARINFO(vi,id) do { \
212 (vi)->range.first_use.pos.bid = 0xffff; \
218 mono_alloc_ireg (MonoCompile *cfg)
220 return alloc_ireg (cfg);
224 mono_alloc_lreg (MonoCompile *cfg)
226 return alloc_lreg (cfg);
230 mono_alloc_freg (MonoCompile *cfg)
232 return alloc_freg (cfg);
236 mono_alloc_preg (MonoCompile *cfg)
238 return alloc_preg (cfg);
242 mono_alloc_dreg (MonoCompile *cfg, MonoStackType stack_type)
244 return alloc_dreg (cfg, stack_type);
248 * mono_alloc_ireg_ref:
250 * Allocate an IREG, and mark it as holding a GC ref.
253 mono_alloc_ireg_ref (MonoCompile *cfg)
255 return alloc_ireg_ref (cfg);
259 * mono_alloc_ireg_mp:
261 * Allocate an IREG, and mark it as holding a managed pointer.
264 mono_alloc_ireg_mp (MonoCompile *cfg)
266 return alloc_ireg_mp (cfg);
270 * mono_alloc_ireg_copy:
272 * Allocate an IREG with the same GC type as VREG.
275 mono_alloc_ireg_copy (MonoCompile *cfg, guint32 vreg)
277 if (vreg_is_ref (cfg, vreg))
278 return alloc_ireg_ref (cfg);
279 else if (vreg_is_mp (cfg, vreg))
280 return alloc_ireg_mp (cfg);
282 return alloc_ireg (cfg);
286 mono_type_to_regmove (MonoCompile *cfg, MonoType *type)
291 type = mini_get_underlying_type (type);
293 switch (type->type) {
306 case MONO_TYPE_FNPTR:
308 case MONO_TYPE_CLASS:
309 case MONO_TYPE_STRING:
310 case MONO_TYPE_OBJECT:
311 case MONO_TYPE_SZARRAY:
312 case MONO_TYPE_ARRAY:
316 #if SIZEOF_REGISTER == 8
322 return cfg->r4fp ? OP_RMOVE : OP_FMOVE;
325 case MONO_TYPE_VALUETYPE:
326 if (type->data.klass->enumtype) {
327 type = mono_class_enum_basetype (type->data.klass);
330 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
333 case MONO_TYPE_TYPEDBYREF:
335 case MONO_TYPE_GENERICINST:
336 if (MONO_CLASS_IS_SIMD (cfg, mono_class_from_mono_type (type)))
338 type = &type->data.generic_class->container_class->byval_arg;
342 g_assert (cfg->gshared);
343 if (mini_type_var_is_vt (type))
346 return mono_type_to_regmove (cfg, mini_get_underlying_type (type));
348 g_error ("unknown type 0x%02x in type_to_regstore", type->type);
354 mono_print_bb (MonoBasicBlock *bb, const char *msg)
359 printf ("\n%s %d: [IN: ", msg, bb->block_num);
360 for (i = 0; i < bb->in_count; ++i)
361 printf (" BB%d(%d)", bb->in_bb [i]->block_num, bb->in_bb [i]->dfn);
363 for (i = 0; i < bb->out_count; ++i)
364 printf (" BB%d(%d)", bb->out_bb [i]->block_num, bb->out_bb [i]->dfn);
366 for (tree = bb->code; tree; tree = tree->next)
367 mono_print_ins_index (-1, tree);
371 mono_create_helper_signatures (void)
373 helper_sig_domain_get = mono_create_icall_signature ("ptr");
374 helper_sig_rgctx_lazy_fetch_trampoline = mono_create_icall_signature ("ptr ptr");
375 helper_sig_llvmonly_imt_trampoline = mono_create_icall_signature ("ptr ptr ptr");
376 helper_sig_jit_thread_attach = mono_create_icall_signature ("ptr ptr");
377 helper_sig_get_tls_tramp = mono_create_icall_signature ("ptr");
378 helper_sig_set_tls_tramp = mono_create_icall_signature ("void ptr");
381 static MONO_NEVER_INLINE void
382 break_on_unverified (void)
384 if (mini_get_debug_options ()->break_on_unverified)
388 static MONO_NEVER_INLINE void
389 field_access_failure (MonoCompile *cfg, MonoMethod *method, MonoClassField *field)
391 char *method_fname = mono_method_full_name (method, TRUE);
392 char *field_fname = mono_field_full_name (field);
393 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
394 mono_error_set_generic_error (&cfg->error, "System", "FieldAccessException", "Field `%s' is inaccessible from method `%s'\n", field_fname, method_fname);
395 g_free (method_fname);
396 g_free (field_fname);
399 static MONO_NEVER_INLINE void
400 inline_failure (MonoCompile *cfg, const char *msg)
402 if (cfg->verbose_level >= 2)
403 printf ("inline failed: %s\n", msg);
404 mono_cfg_set_exception (cfg, MONO_EXCEPTION_INLINE_FAILED);
407 static MONO_NEVER_INLINE void
408 gshared_failure (MonoCompile *cfg, int opcode, const char *file, int line)
410 if (cfg->verbose_level > 2) \
411 printf ("sharing failed for method %s.%s.%s/%d opcode %s line %d\n", cfg->current_method->klass->name_space, cfg->current_method->klass->name, cfg->current_method->name, cfg->current_method->signature->param_count, mono_opcode_name ((opcode)), line);
412 mono_cfg_set_exception (cfg, MONO_EXCEPTION_GENERIC_SHARING_FAILED);
415 static MONO_NEVER_INLINE void
416 gsharedvt_failure (MonoCompile *cfg, int opcode, const char *file, int line)
418 cfg->exception_message = g_strdup_printf ("gsharedvt failed for method %s.%s.%s/%d opcode %s %s:%d", cfg->current_method->klass->name_space, cfg->current_method->klass->name, cfg->current_method->name, cfg->current_method->signature->param_count, mono_opcode_name ((opcode)), file, line);
419 if (cfg->verbose_level >= 2)
420 printf ("%s\n", cfg->exception_message);
421 mono_cfg_set_exception (cfg, MONO_EXCEPTION_GENERIC_SHARING_FAILED);
425 * When using gsharedvt, some instatiations might be verifiable, and some might be not. i.e.
426 * foo<T> (int i) { ldarg.0; box T; }
428 #define UNVERIFIED do { \
429 if (cfg->gsharedvt) { \
430 if (cfg->verbose_level > 2) \
431 printf ("gsharedvt method failed to verify, falling back to instantiation.\n"); \
432 mono_cfg_set_exception (cfg, MONO_EXCEPTION_GENERIC_SHARING_FAILED); \
433 goto exception_exit; \
435 break_on_unverified (); \
439 #define GET_BBLOCK(cfg,tblock,ip) do { \
440 (tblock) = cfg->cil_offset_to_bb [(ip) - cfg->cil_start]; \
442 if ((ip) >= end || (ip) < header->code) UNVERIFIED; \
443 NEW_BBLOCK (cfg, (tblock)); \
444 (tblock)->cil_code = (ip); \
445 ADD_BBLOCK (cfg, (tblock)); \
449 #if defined(TARGET_X86) || defined(TARGET_AMD64)
450 #define EMIT_NEW_X86_LEA(cfg,dest,sr1,sr2,shift,imm) do { \
451 MONO_INST_NEW (cfg, dest, OP_X86_LEA); \
452 (dest)->dreg = alloc_ireg_mp ((cfg)); \
453 (dest)->sreg1 = (sr1); \
454 (dest)->sreg2 = (sr2); \
455 (dest)->inst_imm = (imm); \
456 (dest)->backend.shift_amount = (shift); \
457 MONO_ADD_INS ((cfg)->cbb, (dest)); \
461 /* Emit conversions so both operands of a binary opcode are of the same type */
463 add_widen_op (MonoCompile *cfg, MonoInst *ins, MonoInst **arg1_ref, MonoInst **arg2_ref)
465 MonoInst *arg1 = *arg1_ref;
466 MonoInst *arg2 = *arg2_ref;
469 ((arg1->type == STACK_R4 && arg2->type == STACK_R8) ||
470 (arg1->type == STACK_R8 && arg2->type == STACK_R4))) {
473 /* Mixing r4/r8 is allowed by the spec */
474 if (arg1->type == STACK_R4) {
475 int dreg = alloc_freg (cfg);
477 EMIT_NEW_UNALU (cfg, conv, OP_RCONV_TO_R8, dreg, arg1->dreg);
478 conv->type = STACK_R8;
482 if (arg2->type == STACK_R4) {
483 int dreg = alloc_freg (cfg);
485 EMIT_NEW_UNALU (cfg, conv, OP_RCONV_TO_R8, dreg, arg2->dreg);
486 conv->type = STACK_R8;
492 #if SIZEOF_REGISTER == 8
493 /* FIXME: Need to add many more cases */
494 if ((arg1)->type == STACK_PTR && (arg2)->type == STACK_I4) {
497 int dr = alloc_preg (cfg);
498 EMIT_NEW_UNALU (cfg, widen, OP_SEXT_I4, dr, (arg2)->dreg);
499 (ins)->sreg2 = widen->dreg;
504 #define ADD_BINOP(op) do { \
505 MONO_INST_NEW (cfg, ins, (op)); \
507 ins->sreg1 = sp [0]->dreg; \
508 ins->sreg2 = sp [1]->dreg; \
509 type_from_op (cfg, ins, sp [0], sp [1]); \
511 /* Have to insert a widening op */ \
512 add_widen_op (cfg, ins, &sp [0], &sp [1]); \
513 ins->dreg = alloc_dreg ((cfg), (MonoStackType)(ins)->type); \
514 MONO_ADD_INS ((cfg)->cbb, (ins)); \
515 *sp++ = mono_decompose_opcode ((cfg), (ins)); \
518 #define ADD_UNOP(op) do { \
519 MONO_INST_NEW (cfg, ins, (op)); \
521 ins->sreg1 = sp [0]->dreg; \
522 type_from_op (cfg, ins, sp [0], NULL); \
524 (ins)->dreg = alloc_dreg ((cfg), (MonoStackType)(ins)->type); \
525 MONO_ADD_INS ((cfg)->cbb, (ins)); \
526 *sp++ = mono_decompose_opcode (cfg, ins); \
529 #define ADD_BINCOND(next_block) do { \
532 MONO_INST_NEW(cfg, cmp, OP_COMPARE); \
533 cmp->sreg1 = sp [0]->dreg; \
534 cmp->sreg2 = sp [1]->dreg; \
535 type_from_op (cfg, cmp, sp [0], sp [1]); \
537 add_widen_op (cfg, cmp, &sp [0], &sp [1]); \
538 type_from_op (cfg, ins, sp [0], sp [1]); \
539 ins->inst_many_bb = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2); \
540 GET_BBLOCK (cfg, tblock, target); \
541 link_bblock (cfg, cfg->cbb, tblock); \
542 ins->inst_true_bb = tblock; \
543 if ((next_block)) { \
544 link_bblock (cfg, cfg->cbb, (next_block)); \
545 ins->inst_false_bb = (next_block); \
546 start_new_bblock = 1; \
548 GET_BBLOCK (cfg, tblock, ip); \
549 link_bblock (cfg, cfg->cbb, tblock); \
550 ins->inst_false_bb = tblock; \
551 start_new_bblock = 2; \
553 if (sp != stack_start) { \
554 handle_stack_args (cfg, stack_start, sp - stack_start); \
555 CHECK_UNVERIFIABLE (cfg); \
557 MONO_ADD_INS (cfg->cbb, cmp); \
558 MONO_ADD_INS (cfg->cbb, ins); \
562 * link_bblock: Links two basic blocks
564 * links two basic blocks in the control flow graph, the 'from'
565 * argument is the starting block and the 'to' argument is the block
566 * the control flow ends to after 'from'.
569 link_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
571 MonoBasicBlock **newa;
575 if (from->cil_code) {
577 printf ("edge from IL%04x to IL_%04x\n", from->cil_code - cfg->cil_code, to->cil_code - cfg->cil_code);
579 printf ("edge from IL%04x to exit\n", from->cil_code - cfg->cil_code);
582 printf ("edge from entry to IL_%04x\n", to->cil_code - cfg->cil_code);
584 printf ("edge from entry to exit\n");
589 for (i = 0; i < from->out_count; ++i) {
590 if (to == from->out_bb [i]) {
596 newa = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (from->out_count + 1));
597 for (i = 0; i < from->out_count; ++i) {
598 newa [i] = from->out_bb [i];
606 for (i = 0; i < to->in_count; ++i) {
607 if (from == to->in_bb [i]) {
613 newa = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (gpointer) * (to->in_count + 1));
614 for (i = 0; i < to->in_count; ++i) {
615 newa [i] = to->in_bb [i];
624 mono_link_bblock (MonoCompile *cfg, MonoBasicBlock *from, MonoBasicBlock* to)
626 link_bblock (cfg, from, to);
630 * mono_find_block_region:
632 * We mark each basic block with a region ID. We use that to avoid BB
633 * optimizations when blocks are in different regions.
636 * A region token that encodes where this region is, and information
637 * about the clause owner for this block.
639 * The region encodes the try/catch/filter clause that owns this block
640 * as well as the type. -1 is a special value that represents a block
641 * that is in none of try/catch/filter.
644 mono_find_block_region (MonoCompile *cfg, int offset)
646 MonoMethodHeader *header = cfg->header;
647 MonoExceptionClause *clause;
650 for (i = 0; i < header->num_clauses; ++i) {
651 clause = &header->clauses [i];
652 if ((clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) && (offset >= clause->data.filter_offset) &&
653 (offset < (clause->handler_offset)))
654 return ((i + 1) << 8) | MONO_REGION_FILTER | clause->flags;
656 if (MONO_OFFSET_IN_HANDLER (clause, offset)) {
657 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY)
658 return ((i + 1) << 8) | MONO_REGION_FINALLY | clause->flags;
659 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
660 return ((i + 1) << 8) | MONO_REGION_FAULT | clause->flags;
662 return ((i + 1) << 8) | MONO_REGION_CATCH | clause->flags;
665 for (i = 0; i < header->num_clauses; ++i) {
666 clause = &header->clauses [i];
668 if (MONO_OFFSET_IN_CLAUSE (clause, offset))
669 return ((i + 1) << 8) | clause->flags;
676 ip_in_finally_clause (MonoCompile *cfg, int offset)
678 MonoMethodHeader *header = cfg->header;
679 MonoExceptionClause *clause;
682 for (i = 0; i < header->num_clauses; ++i) {
683 clause = &header->clauses [i];
684 if (clause->flags != MONO_EXCEPTION_CLAUSE_FINALLY && clause->flags != MONO_EXCEPTION_CLAUSE_FAULT)
687 if (MONO_OFFSET_IN_HANDLER (clause, offset))
694 mono_find_final_block (MonoCompile *cfg, unsigned char *ip, unsigned char *target, int type)
696 MonoMethodHeader *header = cfg->header;
697 MonoExceptionClause *clause;
701 for (i = 0; i < header->num_clauses; ++i) {
702 clause = &header->clauses [i];
703 if (MONO_OFFSET_IN_CLAUSE (clause, (ip - header->code)) &&
704 (!MONO_OFFSET_IN_CLAUSE (clause, (target - header->code)))) {
705 if (clause->flags == type)
706 res = g_list_append (res, clause);
713 mono_create_spvar_for_region (MonoCompile *cfg, int region)
717 var = (MonoInst *)g_hash_table_lookup (cfg->spvars, GINT_TO_POINTER (region));
721 var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
722 /* prevent it from being register allocated */
723 var->flags |= MONO_INST_VOLATILE;
725 g_hash_table_insert (cfg->spvars, GINT_TO_POINTER (region), var);
729 mono_find_exvar_for_offset (MonoCompile *cfg, int offset)
731 return (MonoInst *)g_hash_table_lookup (cfg->exvars, GINT_TO_POINTER (offset));
735 mono_create_exvar_for_offset (MonoCompile *cfg, int offset)
739 var = (MonoInst *)g_hash_table_lookup (cfg->exvars, GINT_TO_POINTER (offset));
743 var = mono_compile_create_var (cfg, &mono_defaults.object_class->byval_arg, OP_LOCAL);
744 /* prevent it from being register allocated */
745 var->flags |= MONO_INST_VOLATILE;
747 g_hash_table_insert (cfg->exvars, GINT_TO_POINTER (offset), var);
753 * Returns the type used in the eval stack when @type is loaded.
754 * FIXME: return a MonoType/MonoClass for the byref and VALUETYPE cases.
757 type_to_eval_stack_type (MonoCompile *cfg, MonoType *type, MonoInst *inst)
761 type = mini_get_underlying_type (type);
762 inst->klass = klass = mono_class_from_mono_type (type);
764 inst->type = STACK_MP;
769 switch (type->type) {
771 inst->type = STACK_INV;
779 inst->type = STACK_I4;
784 case MONO_TYPE_FNPTR:
785 inst->type = STACK_PTR;
787 case MONO_TYPE_CLASS:
788 case MONO_TYPE_STRING:
789 case MONO_TYPE_OBJECT:
790 case MONO_TYPE_SZARRAY:
791 case MONO_TYPE_ARRAY:
792 inst->type = STACK_OBJ;
796 inst->type = STACK_I8;
799 inst->type = cfg->r4_stack_type;
802 inst->type = STACK_R8;
804 case MONO_TYPE_VALUETYPE:
805 if (type->data.klass->enumtype) {
806 type = mono_class_enum_basetype (type->data.klass);
810 inst->type = STACK_VTYPE;
813 case MONO_TYPE_TYPEDBYREF:
814 inst->klass = mono_defaults.typed_reference_class;
815 inst->type = STACK_VTYPE;
817 case MONO_TYPE_GENERICINST:
818 type = &type->data.generic_class->container_class->byval_arg;
822 g_assert (cfg->gshared);
823 if (mini_is_gsharedvt_type (type)) {
824 g_assert (cfg->gsharedvt);
825 inst->type = STACK_VTYPE;
827 type_to_eval_stack_type (cfg, mini_get_underlying_type (type), inst);
831 g_error ("unknown type 0x%02x in eval stack type", type->type);
836 * The following tables are used to quickly validate the IL code in type_from_op ().
839 bin_num_table [STACK_MAX] [STACK_MAX] = {
840 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
841 {STACK_INV, STACK_I4, STACK_INV, STACK_PTR, STACK_INV, STACK_MP, STACK_INV, STACK_INV},
842 {STACK_INV, STACK_INV, STACK_I8, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
843 {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_MP, STACK_INV, STACK_INV},
844 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_R8, STACK_INV, STACK_INV, STACK_INV, STACK_R8},
845 {STACK_INV, STACK_MP, STACK_INV, STACK_MP, STACK_INV, STACK_PTR, STACK_INV, STACK_INV},
846 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
847 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
848 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_R8, STACK_INV, STACK_INV, STACK_INV, STACK_R4}
853 STACK_INV, STACK_I4, STACK_I8, STACK_PTR, STACK_R8, STACK_INV, STACK_INV, STACK_INV, STACK_R4
856 /* reduce the size of this table */
858 bin_int_table [STACK_MAX] [STACK_MAX] = {
859 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
860 {STACK_INV, STACK_I4, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
861 {STACK_INV, STACK_INV, STACK_I8, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
862 {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
863 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
864 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
865 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
866 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
870 bin_comp_table [STACK_MAX] [STACK_MAX] = {
871 /* Inv i L p F & O vt r4 */
873 {0, 1, 0, 1, 0, 0, 0, 0}, /* i, int32 */
874 {0, 0, 1, 0, 0, 0, 0, 0}, /* L, int64 */
875 {0, 1, 0, 1, 0, 2, 4, 0}, /* p, ptr */
876 {0, 0, 0, 0, 1, 0, 0, 0, 1}, /* F, R8 */
877 {0, 0, 0, 2, 0, 1, 0, 0}, /* &, managed pointer */
878 {0, 0, 0, 4, 0, 0, 3, 0}, /* O, reference */
879 {0, 0, 0, 0, 0, 0, 0, 0}, /* vt value type */
880 {0, 0, 0, 0, 1, 0, 0, 0, 1}, /* r, r4 */
883 /* reduce the size of this table */
885 shift_table [STACK_MAX] [STACK_MAX] = {
886 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
887 {STACK_INV, STACK_I4, STACK_INV, STACK_I4, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
888 {STACK_INV, STACK_I8, STACK_INV, STACK_I8, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
889 {STACK_INV, STACK_PTR, STACK_INV, STACK_PTR, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
890 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
891 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
892 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV},
893 {STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV, STACK_INV}
897 * Tables to map from the non-specific opcode to the matching
898 * type-specific opcode.
900 /* handles from CEE_ADD to CEE_SHR_UN (CEE_REM_UN for floats) */
902 binops_op_map [STACK_MAX] = {
903 0, OP_IADD-CEE_ADD, OP_LADD-CEE_ADD, OP_PADD-CEE_ADD, OP_FADD-CEE_ADD, OP_PADD-CEE_ADD, 0, 0, OP_RADD-CEE_ADD
906 /* handles from CEE_NEG to CEE_CONV_U8 */
908 unops_op_map [STACK_MAX] = {
909 0, OP_INEG-CEE_NEG, OP_LNEG-CEE_NEG, OP_PNEG-CEE_NEG, OP_FNEG-CEE_NEG, OP_PNEG-CEE_NEG, 0, 0, OP_RNEG-CEE_NEG
912 /* handles from CEE_CONV_U2 to CEE_SUB_OVF_UN */
914 ovfops_op_map [STACK_MAX] = {
915 0, OP_ICONV_TO_U2-CEE_CONV_U2, OP_LCONV_TO_U2-CEE_CONV_U2, OP_PCONV_TO_U2-CEE_CONV_U2, OP_FCONV_TO_U2-CEE_CONV_U2, OP_PCONV_TO_U2-CEE_CONV_U2, OP_PCONV_TO_U2-CEE_CONV_U2, 0, OP_RCONV_TO_U2-CEE_CONV_U2
918 /* handles from CEE_CONV_OVF_I1_UN to CEE_CONV_OVF_U_UN */
920 ovf2ops_op_map [STACK_MAX] = {
921 0, OP_ICONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, OP_LCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, OP_PCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, OP_FCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, OP_PCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN, 0, 0, OP_RCONV_TO_OVF_I1_UN-CEE_CONV_OVF_I1_UN
924 /* handles from CEE_CONV_OVF_I1 to CEE_CONV_OVF_U8 */
926 ovf3ops_op_map [STACK_MAX] = {
927 0, OP_ICONV_TO_OVF_I1-CEE_CONV_OVF_I1, OP_LCONV_TO_OVF_I1-CEE_CONV_OVF_I1, OP_PCONV_TO_OVF_I1-CEE_CONV_OVF_I1, OP_FCONV_TO_OVF_I1-CEE_CONV_OVF_I1, OP_PCONV_TO_OVF_I1-CEE_CONV_OVF_I1, 0, 0, OP_RCONV_TO_OVF_I1-CEE_CONV_OVF_I1
930 /* handles from CEE_BEQ to CEE_BLT_UN */
932 beqops_op_map [STACK_MAX] = {
933 0, OP_IBEQ-CEE_BEQ, OP_LBEQ-CEE_BEQ, OP_PBEQ-CEE_BEQ, OP_FBEQ-CEE_BEQ, OP_PBEQ-CEE_BEQ, OP_PBEQ-CEE_BEQ, 0, OP_FBEQ-CEE_BEQ
936 /* handles from CEE_CEQ to CEE_CLT_UN */
938 ceqops_op_map [STACK_MAX] = {
939 0, OP_ICEQ-OP_CEQ, OP_LCEQ-OP_CEQ, OP_PCEQ-OP_CEQ, OP_FCEQ-OP_CEQ, OP_PCEQ-OP_CEQ, OP_PCEQ-OP_CEQ, 0, OP_RCEQ-OP_CEQ
943 * Sets ins->type (the type on the eval stack) according to the
944 * type of the opcode and the arguments to it.
945 * Invalid IL code is marked by setting ins->type to the invalid value STACK_INV.
947 * FIXME: this function sets ins->type unconditionally in some cases, but
948 * it should set it to invalid for some types (a conv.x on an object)
951 type_from_op (MonoCompile *cfg, MonoInst *ins, MonoInst *src1, MonoInst *src2)
953 switch (ins->opcode) {
960 /* FIXME: check unverifiable args for STACK_MP */
961 ins->type = bin_num_table [src1->type] [src2->type];
962 ins->opcode += binops_op_map [ins->type];
969 ins->type = bin_int_table [src1->type] [src2->type];
970 ins->opcode += binops_op_map [ins->type];
975 ins->type = shift_table [src1->type] [src2->type];
976 ins->opcode += binops_op_map [ins->type];
981 ins->type = bin_comp_table [src1->type] [src2->type] ? STACK_I4: STACK_INV;
982 if ((src1->type == STACK_I8) || ((SIZEOF_VOID_P == 8) && ((src1->type == STACK_PTR) || (src1->type == STACK_OBJ) || (src1->type == STACK_MP))))
983 ins->opcode = OP_LCOMPARE;
984 else if (src1->type == STACK_R4)
985 ins->opcode = OP_RCOMPARE;
986 else if (src1->type == STACK_R8)
987 ins->opcode = OP_FCOMPARE;
989 ins->opcode = OP_ICOMPARE;
991 case OP_ICOMPARE_IMM:
992 ins->type = bin_comp_table [src1->type] [src1->type] ? STACK_I4 : STACK_INV;
993 if ((src1->type == STACK_I8) || ((SIZEOF_VOID_P == 8) && ((src1->type == STACK_PTR) || (src1->type == STACK_OBJ) || (src1->type == STACK_MP))))
994 ins->opcode = OP_LCOMPARE_IMM;
1006 ins->opcode += beqops_op_map [src1->type];
1009 ins->type = bin_comp_table [src1->type] [src2->type] ? STACK_I4: STACK_INV;
1010 ins->opcode += ceqops_op_map [src1->type];
1016 ins->type = (bin_comp_table [src1->type] [src2->type] & 1) ? STACK_I4: STACK_INV;
1017 ins->opcode += ceqops_op_map [src1->type];
1021 ins->type = neg_table [src1->type];
1022 ins->opcode += unops_op_map [ins->type];
1025 if (src1->type >= STACK_I4 && src1->type <= STACK_PTR)
1026 ins->type = src1->type;
1028 ins->type = STACK_INV;
1029 ins->opcode += unops_op_map [ins->type];
1035 ins->type = STACK_I4;
1036 ins->opcode += unops_op_map [src1->type];
1039 ins->type = STACK_R8;
1040 switch (src1->type) {
1043 ins->opcode = OP_ICONV_TO_R_UN;
1046 ins->opcode = OP_LCONV_TO_R_UN;
1050 case CEE_CONV_OVF_I1:
1051 case CEE_CONV_OVF_U1:
1052 case CEE_CONV_OVF_I2:
1053 case CEE_CONV_OVF_U2:
1054 case CEE_CONV_OVF_I4:
1055 case CEE_CONV_OVF_U4:
1056 ins->type = STACK_I4;
1057 ins->opcode += ovf3ops_op_map [src1->type];
1059 case CEE_CONV_OVF_I_UN:
1060 case CEE_CONV_OVF_U_UN:
1061 ins->type = STACK_PTR;
1062 ins->opcode += ovf2ops_op_map [src1->type];
1064 case CEE_CONV_OVF_I1_UN:
1065 case CEE_CONV_OVF_I2_UN:
1066 case CEE_CONV_OVF_I4_UN:
1067 case CEE_CONV_OVF_U1_UN:
1068 case CEE_CONV_OVF_U2_UN:
1069 case CEE_CONV_OVF_U4_UN:
1070 ins->type = STACK_I4;
1071 ins->opcode += ovf2ops_op_map [src1->type];
1074 ins->type = STACK_PTR;
1075 switch (src1->type) {
1077 ins->opcode = OP_ICONV_TO_U;
1081 #if SIZEOF_VOID_P == 8
1082 ins->opcode = OP_LCONV_TO_U;
1084 ins->opcode = OP_MOVE;
1088 ins->opcode = OP_LCONV_TO_U;
1091 ins->opcode = OP_FCONV_TO_U;
1097 ins->type = STACK_I8;
1098 ins->opcode += unops_op_map [src1->type];
1100 case CEE_CONV_OVF_I8:
1101 case CEE_CONV_OVF_U8:
1102 ins->type = STACK_I8;
1103 ins->opcode += ovf3ops_op_map [src1->type];
1105 case CEE_CONV_OVF_U8_UN:
1106 case CEE_CONV_OVF_I8_UN:
1107 ins->type = STACK_I8;
1108 ins->opcode += ovf2ops_op_map [src1->type];
1111 ins->type = cfg->r4_stack_type;
1112 ins->opcode += unops_op_map [src1->type];
1115 ins->type = STACK_R8;
1116 ins->opcode += unops_op_map [src1->type];
1119 ins->type = STACK_R8;
1123 ins->type = STACK_I4;
1124 ins->opcode += ovfops_op_map [src1->type];
1127 case CEE_CONV_OVF_I:
1128 case CEE_CONV_OVF_U:
1129 ins->type = STACK_PTR;
1130 ins->opcode += ovfops_op_map [src1->type];
1133 case CEE_ADD_OVF_UN:
1135 case CEE_MUL_OVF_UN:
1137 case CEE_SUB_OVF_UN:
1138 ins->type = bin_num_table [src1->type] [src2->type];
1139 ins->opcode += ovfops_op_map [src1->type];
1140 if (ins->type == STACK_R8)
1141 ins->type = STACK_INV;
1143 case OP_LOAD_MEMBASE:
1144 ins->type = STACK_PTR;
1146 case OP_LOADI1_MEMBASE:
1147 case OP_LOADU1_MEMBASE:
1148 case OP_LOADI2_MEMBASE:
1149 case OP_LOADU2_MEMBASE:
1150 case OP_LOADI4_MEMBASE:
1151 case OP_LOADU4_MEMBASE:
1152 ins->type = STACK_PTR;
1154 case OP_LOADI8_MEMBASE:
1155 ins->type = STACK_I8;
1157 case OP_LOADR4_MEMBASE:
1158 ins->type = cfg->r4_stack_type;
1160 case OP_LOADR8_MEMBASE:
1161 ins->type = STACK_R8;
1164 g_error ("opcode 0x%04x not handled in type from op", ins->opcode);
1168 if (ins->type == STACK_MP)
1169 ins->klass = mono_defaults.object_class;
1174 STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I4, STACK_I8, STACK_PTR, STACK_R8, STACK_R8, STACK_OBJ
1180 param_table [STACK_MAX] [STACK_MAX] = {
1185 check_values_to_signature (MonoInst *args, MonoType *this_ins, MonoMethodSignature *sig)
1190 switch (args->type) {
1200 for (i = 0; i < sig->param_count; ++i) {
1201 switch (args [i].type) {
1205 if (!sig->params [i]->byref)
1209 if (sig->params [i]->byref)
1211 switch (sig->params [i]->type) {
1212 case MONO_TYPE_CLASS:
1213 case MONO_TYPE_STRING:
1214 case MONO_TYPE_OBJECT:
1215 case MONO_TYPE_SZARRAY:
1216 case MONO_TYPE_ARRAY:
1223 if (sig->params [i]->byref)
1225 if (sig->params [i]->type != MONO_TYPE_R4 && sig->params [i]->type != MONO_TYPE_R8)
1234 /*if (!param_table [args [i].type] [sig->params [i]->type])
1242 * When we need a pointer to the current domain many times in a method, we
1243 * call mono_domain_get() once and we store the result in a local variable.
1244 * This function returns the variable that represents the MonoDomain*.
1246 inline static MonoInst *
1247 mono_get_domainvar (MonoCompile *cfg)
1249 if (!cfg->domainvar)
1250 cfg->domainvar = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1251 return cfg->domainvar;
1255 * The got_var contains the address of the Global Offset Table when AOT
1259 mono_get_got_var (MonoCompile *cfg)
1261 if (!cfg->compile_aot || !cfg->backend->need_got_var)
1263 if (!cfg->got_var) {
1264 cfg->got_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1266 return cfg->got_var;
1270 mono_get_vtable_var (MonoCompile *cfg)
1272 g_assert (cfg->gshared);
1274 if (!cfg->rgctx_var) {
1275 cfg->rgctx_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1276 /* force the var to be stack allocated */
1277 cfg->rgctx_var->flags |= MONO_INST_VOLATILE;
1280 return cfg->rgctx_var;
1284 type_from_stack_type (MonoInst *ins) {
1285 switch (ins->type) {
1286 case STACK_I4: return &mono_defaults.int32_class->byval_arg;
1287 case STACK_I8: return &mono_defaults.int64_class->byval_arg;
1288 case STACK_PTR: return &mono_defaults.int_class->byval_arg;
1289 case STACK_R4: return &mono_defaults.single_class->byval_arg;
1290 case STACK_R8: return &mono_defaults.double_class->byval_arg;
1292 return &ins->klass->this_arg;
1293 case STACK_OBJ: return &mono_defaults.object_class->byval_arg;
1294 case STACK_VTYPE: return &ins->klass->byval_arg;
1296 g_error ("stack type %d to monotype not handled\n", ins->type);
1301 static G_GNUC_UNUSED int
1302 type_to_stack_type (MonoCompile *cfg, MonoType *t)
1304 t = mono_type_get_underlying_type (t);
1316 case MONO_TYPE_FNPTR:
1318 case MONO_TYPE_CLASS:
1319 case MONO_TYPE_STRING:
1320 case MONO_TYPE_OBJECT:
1321 case MONO_TYPE_SZARRAY:
1322 case MONO_TYPE_ARRAY:
1328 return cfg->r4_stack_type;
1331 case MONO_TYPE_VALUETYPE:
1332 case MONO_TYPE_TYPEDBYREF:
1334 case MONO_TYPE_GENERICINST:
1335 if (mono_type_generic_inst_is_valuetype (t))
1341 g_assert_not_reached ();
1348 array_access_to_klass (int opcode)
1352 return mono_defaults.byte_class;
1354 return mono_defaults.uint16_class;
1357 return mono_defaults.int_class;
1360 return mono_defaults.sbyte_class;
1363 return mono_defaults.int16_class;
1366 return mono_defaults.int32_class;
1368 return mono_defaults.uint32_class;
1371 return mono_defaults.int64_class;
1374 return mono_defaults.single_class;
1377 return mono_defaults.double_class;
1378 case CEE_LDELEM_REF:
1379 case CEE_STELEM_REF:
1380 return mono_defaults.object_class;
1382 g_assert_not_reached ();
1388 * We try to share variables when possible
1391 mono_compile_get_interface_var (MonoCompile *cfg, int slot, MonoInst *ins)
1396 /* inlining can result in deeper stacks */
1397 if (slot >= cfg->header->max_stack)
1398 return mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1400 pos = ins->type - 1 + slot * STACK_MAX;
1402 switch (ins->type) {
1409 if ((vnum = cfg->intvars [pos]))
1410 return cfg->varinfo [vnum];
1411 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1412 cfg->intvars [pos] = res->inst_c0;
1415 res = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
1421 mono_save_token_info (MonoCompile *cfg, MonoImage *image, guint32 token, gpointer key)
1424 * Don't use this if a generic_context is set, since that means AOT can't
1425 * look up the method using just the image+token.
1426 * table == 0 means this is a reference made from a wrapper.
1428 if (cfg->compile_aot && !cfg->generic_context && (mono_metadata_token_table (token) > 0)) {
1429 MonoJumpInfoToken *jump_info_token = (MonoJumpInfoToken *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfoToken));
1430 jump_info_token->image = image;
1431 jump_info_token->token = token;
1432 g_hash_table_insert (cfg->token_info_hash, key, jump_info_token);
1437 * This function is called to handle items that are left on the evaluation stack
1438 * at basic block boundaries. What happens is that we save the values to local variables
1439 * and we reload them later when first entering the target basic block (with the
1440 * handle_loaded_temps () function).
1441 * A single joint point will use the same variables (stored in the array bb->out_stack or
1442 * bb->in_stack, if the basic block is before or after the joint point).
1444 * This function needs to be called _before_ emitting the last instruction of
1445 * the bb (i.e. before emitting a branch).
1446 * If the stack merge fails at a join point, cfg->unverifiable is set.
1449 handle_stack_args (MonoCompile *cfg, MonoInst **sp, int count)
1452 MonoBasicBlock *bb = cfg->cbb;
1453 MonoBasicBlock *outb;
1454 MonoInst *inst, **locals;
1459 if (cfg->verbose_level > 3)
1460 printf ("%d item(s) on exit from B%d\n", count, bb->block_num);
1461 if (!bb->out_scount) {
1462 bb->out_scount = count;
1463 //printf ("bblock %d has out:", bb->block_num);
1465 for (i = 0; i < bb->out_count; ++i) {
1466 outb = bb->out_bb [i];
1467 /* exception handlers are linked, but they should not be considered for stack args */
1468 if (outb->flags & BB_EXCEPTION_HANDLER)
1470 //printf (" %d", outb->block_num);
1471 if (outb->in_stack) {
1473 bb->out_stack = outb->in_stack;
1479 bb->out_stack = (MonoInst **)mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * count);
1480 for (i = 0; i < count; ++i) {
1482 * try to reuse temps already allocated for this purpouse, if they occupy the same
1483 * stack slot and if they are of the same type.
1484 * This won't cause conflicts since if 'local' is used to
1485 * store one of the values in the in_stack of a bblock, then
1486 * the same variable will be used for the same outgoing stack
1488 * This doesn't work when inlining methods, since the bblocks
1489 * in the inlined methods do not inherit their in_stack from
1490 * the bblock they are inlined to. See bug #58863 for an
1493 if (cfg->inlined_method)
1494 bb->out_stack [i] = mono_compile_create_var (cfg, type_from_stack_type (sp [i]), OP_LOCAL);
1496 bb->out_stack [i] = mono_compile_get_interface_var (cfg, i, sp [i]);
1501 for (i = 0; i < bb->out_count; ++i) {
1502 outb = bb->out_bb [i];
1503 /* exception handlers are linked, but they should not be considered for stack args */
1504 if (outb->flags & BB_EXCEPTION_HANDLER)
1506 if (outb->in_scount) {
1507 if (outb->in_scount != bb->out_scount) {
1508 cfg->unverifiable = TRUE;
1511 continue; /* check they are the same locals */
1513 outb->in_scount = count;
1514 outb->in_stack = bb->out_stack;
1517 locals = bb->out_stack;
1519 for (i = 0; i < count; ++i) {
1520 EMIT_NEW_TEMPSTORE (cfg, inst, locals [i]->inst_c0, sp [i]);
1521 inst->cil_code = sp [i]->cil_code;
1522 sp [i] = locals [i];
1523 if (cfg->verbose_level > 3)
1524 printf ("storing %d to temp %d\n", i, (int)locals [i]->inst_c0);
1528 * It is possible that the out bblocks already have in_stack assigned, and
1529 * the in_stacks differ. In this case, we will store to all the different
1536 /* Find a bblock which has a different in_stack */
1538 while (bindex < bb->out_count) {
1539 outb = bb->out_bb [bindex];
1540 /* exception handlers are linked, but they should not be considered for stack args */
1541 if (outb->flags & BB_EXCEPTION_HANDLER) {
1545 if (outb->in_stack != locals) {
1546 for (i = 0; i < count; ++i) {
1547 EMIT_NEW_TEMPSTORE (cfg, inst, outb->in_stack [i]->inst_c0, sp [i]);
1548 inst->cil_code = sp [i]->cil_code;
1549 sp [i] = locals [i];
1550 if (cfg->verbose_level > 3)
1551 printf ("storing %d to temp %d\n", i, (int)outb->in_stack [i]->inst_c0);
1553 locals = outb->in_stack;
1563 emit_runtime_constant (MonoCompile *cfg, MonoJumpInfoType patch_type, gpointer data)
1567 if (cfg->compile_aot) {
1568 EMIT_NEW_AOTCONST (cfg, ins, patch_type, data);
1574 ji.type = patch_type;
1575 ji.data.target = data;
1576 target = mono_resolve_patch_target (NULL, cfg->domain, NULL, &ji, FALSE, &error);
1577 mono_error_assert_ok (&error);
1579 EMIT_NEW_PCONST (cfg, ins, target);
1585 mini_emit_runtime_constant (MonoCompile *cfg, MonoJumpInfoType patch_type, gpointer data)
1587 return emit_runtime_constant (cfg, patch_type, data);
1591 mini_emit_memset (MonoCompile *cfg, int destreg, int offset, int size, int val, int align)
1595 g_assert (val == 0);
1600 if ((size <= SIZEOF_REGISTER) && (size <= align)) {
1603 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STOREI1_MEMBASE_IMM, destreg, offset, val);
1606 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STOREI2_MEMBASE_IMM, destreg, offset, val);
1609 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STOREI4_MEMBASE_IMM, destreg, offset, val);
1611 #if SIZEOF_REGISTER == 8
1613 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STOREI8_MEMBASE_IMM, destreg, offset, val);
1619 val_reg = alloc_preg (cfg);
1621 if (SIZEOF_REGISTER == 8)
1622 MONO_EMIT_NEW_I8CONST (cfg, val_reg, val);
1624 MONO_EMIT_NEW_ICONST (cfg, val_reg, val);
1627 /* This could be optimized further if neccesary */
1629 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI1_MEMBASE_REG, destreg, offset, val_reg);
1636 if (!cfg->backend->no_unaligned_access && SIZEOF_REGISTER == 8) {
1638 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, destreg, offset, val_reg);
1643 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI8_MEMBASE_REG, destreg, offset, val_reg);
1650 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, destreg, offset, val_reg);
1655 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI2_MEMBASE_REG, destreg, offset, val_reg);
1660 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI1_MEMBASE_REG, destreg, offset, val_reg);
1667 mini_emit_memcpy (MonoCompile *cfg, int destreg, int doffset, int srcreg, int soffset, int size, int align)
1674 /*FIXME arbitrary hack to avoid unbound code expansion.*/
1675 g_assert (size < 10000);
1678 /* This could be optimized further if neccesary */
1680 cur_reg = alloc_preg (cfg);
1681 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI1_MEMBASE, cur_reg, srcreg, soffset);
1682 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI1_MEMBASE_REG, destreg, doffset, cur_reg);
1689 if (!cfg->backend->no_unaligned_access && SIZEOF_REGISTER == 8) {
1691 cur_reg = alloc_preg (cfg);
1692 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI8_MEMBASE, cur_reg, srcreg, soffset);
1693 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI8_MEMBASE_REG, destreg, doffset, cur_reg);
1701 cur_reg = alloc_preg (cfg);
1702 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, cur_reg, srcreg, soffset);
1703 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, destreg, doffset, cur_reg);
1709 cur_reg = alloc_preg (cfg);
1710 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI2_MEMBASE, cur_reg, srcreg, soffset);
1711 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI2_MEMBASE_REG, destreg, doffset, cur_reg);
1717 cur_reg = alloc_preg (cfg);
1718 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI1_MEMBASE, cur_reg, srcreg, soffset);
1719 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI1_MEMBASE_REG, destreg, doffset, cur_reg);
1727 mono_create_fast_tls_getter (MonoCompile *cfg, MonoTlsKey key)
1729 int tls_offset = mono_tls_get_tls_offset (key);
1731 if (cfg->compile_aot)
1734 if (tls_offset != -1 && mono_arch_have_fast_tls ()) {
1736 MONO_INST_NEW (cfg, ins, OP_TLS_GET);
1737 ins->dreg = mono_alloc_preg (cfg);
1738 ins->inst_offset = tls_offset;
1745 mono_create_fast_tls_setter (MonoCompile *cfg, MonoInst* value, MonoTlsKey key)
1747 int tls_offset = mono_tls_get_tls_offset (key);
1749 if (cfg->compile_aot)
1752 if (tls_offset != -1 && mono_arch_have_fast_tls ()) {
1754 MONO_INST_NEW (cfg, ins, OP_TLS_SET);
1755 ins->sreg1 = value->dreg;
1756 ins->inst_offset = tls_offset;
1764 mono_create_tls_get (MonoCompile *cfg, MonoTlsKey key)
1766 MonoInst *fast_tls = NULL;
1768 if (!mini_get_debug_options ()->use_fallback_tls)
1769 fast_tls = mono_create_fast_tls_getter (cfg, key);
1772 MONO_ADD_INS (cfg->cbb, fast_tls);
1776 if (cfg->compile_aot) {
1779 * tls getters are critical pieces of code and we don't want to resolve them
1780 * through the standard plt/tramp mechanism since we might expose ourselves
1781 * to crashes and infinite recursions.
1783 EMIT_NEW_AOTCONST (cfg, addr, MONO_PATCH_INFO_GET_TLS_TRAMP, (void*)key);
1784 return mono_emit_calli (cfg, helper_sig_get_tls_tramp, NULL, addr, NULL, NULL);
1786 gpointer getter = mono_tls_get_tls_getter (key, FALSE);
1787 return mono_emit_jit_icall (cfg, getter, NULL);
1792 mono_create_tls_set (MonoCompile *cfg, MonoInst *value, MonoTlsKey key)
1794 MonoInst *fast_tls = NULL;
1796 if (!mini_get_debug_options ()->use_fallback_tls)
1797 fast_tls = mono_create_fast_tls_setter (cfg, value, key);
1800 MONO_ADD_INS (cfg->cbb, fast_tls);
1804 if (cfg->compile_aot) {
1806 EMIT_NEW_AOTCONST (cfg, addr, MONO_PATCH_INFO_SET_TLS_TRAMP, (void*)key);
1807 return mono_emit_calli (cfg, helper_sig_set_tls_tramp, &value, addr, NULL, NULL);
1809 gpointer setter = mono_tls_get_tls_setter (key, FALSE);
1810 return mono_emit_jit_icall (cfg, setter, &value);
1817 * Emit IR to push the current LMF onto the LMF stack.
1820 emit_push_lmf (MonoCompile *cfg)
1823 * Emit IR to push the LMF:
1824 * lmf_addr = <lmf_addr from tls>
1825 * lmf->lmf_addr = lmf_addr
1826 * lmf->prev_lmf = *lmf_addr
1829 MonoInst *ins, *lmf_ins;
1834 if (cfg->lmf_ir_mono_lmf) {
1835 MonoInst *lmf_vara_ins, *lmf_ins;
1836 /* Load current lmf */
1837 lmf_ins = mono_create_tls_get (cfg, TLS_KEY_LMF);
1839 EMIT_NEW_VARLOADA (cfg, lmf_vara_ins, cfg->lmf_var, NULL);
1840 /* Save previous_lmf */
1841 EMIT_NEW_STORE_MEMBASE (cfg, ins, OP_STORE_MEMBASE_REG, lmf_vara_ins->dreg, MONO_STRUCT_OFFSET (MonoLMF, previous_lmf), lmf_ins->dreg);
1843 mono_create_tls_set (cfg, lmf_vara_ins, TLS_KEY_LMF);
1845 int lmf_reg, prev_lmf_reg;
1847 * Store lmf_addr in a variable, so it can be allocated to a global register.
1849 if (!cfg->lmf_addr_var)
1850 cfg->lmf_addr_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1853 ins = mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
1855 int jit_tls_dreg = ins->dreg;
1857 lmf_reg = alloc_preg (cfg);
1858 EMIT_NEW_BIALU_IMM (cfg, lmf_ins, OP_PADD_IMM, lmf_reg, jit_tls_dreg, MONO_STRUCT_OFFSET (MonoJitTlsData, lmf));
1860 lmf_ins = mono_create_tls_get (cfg, TLS_KEY_LMF_ADDR);
1863 lmf_ins->dreg = cfg->lmf_addr_var->dreg;
1865 EMIT_NEW_VARLOADA (cfg, ins, cfg->lmf_var, NULL);
1866 lmf_reg = ins->dreg;
1868 prev_lmf_reg = alloc_preg (cfg);
1869 /* Save previous_lmf */
1870 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, prev_lmf_reg, cfg->lmf_addr_var->dreg, 0);
1871 EMIT_NEW_STORE_MEMBASE (cfg, ins, OP_STORE_MEMBASE_REG, lmf_reg, MONO_STRUCT_OFFSET (MonoLMF, previous_lmf), prev_lmf_reg);
1873 EMIT_NEW_STORE_MEMBASE (cfg, ins, OP_STORE_MEMBASE_REG, cfg->lmf_addr_var->dreg, 0, lmf_reg);
1880 * Emit IR to pop the current LMF from the LMF stack.
1883 emit_pop_lmf (MonoCompile *cfg)
1885 int lmf_reg, lmf_addr_reg;
1891 EMIT_NEW_VARLOADA (cfg, ins, cfg->lmf_var, NULL);
1892 lmf_reg = ins->dreg;
1894 if (cfg->lmf_ir_mono_lmf) {
1895 /* Load previous_lmf */
1896 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, alloc_preg (cfg), lmf_reg, MONO_STRUCT_OFFSET (MonoLMF, previous_lmf));
1898 mono_create_tls_set (cfg, ins, TLS_KEY_LMF);
1902 * Emit IR to pop the LMF:
1903 * *(lmf->lmf_addr) = lmf->prev_lmf
1905 /* This could be called before emit_push_lmf () */
1906 if (!cfg->lmf_addr_var)
1907 cfg->lmf_addr_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
1908 lmf_addr_reg = cfg->lmf_addr_var->dreg;
1910 prev_lmf_reg = alloc_preg (cfg);
1911 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, prev_lmf_reg, lmf_reg, MONO_STRUCT_OFFSET (MonoLMF, previous_lmf));
1912 EMIT_NEW_STORE_MEMBASE (cfg, ins, OP_STORE_MEMBASE_REG, lmf_addr_reg, 0, prev_lmf_reg);
1917 emit_instrumentation_call (MonoCompile *cfg, void *func)
1919 MonoInst *iargs [1];
1922 * Avoid instrumenting inlined methods since it can
1923 * distort profiling results.
1925 if (cfg->method != cfg->current_method)
1928 if (cfg->prof_options & MONO_PROFILE_ENTER_LEAVE) {
1929 EMIT_NEW_METHODCONST (cfg, iargs [0], cfg->method);
1930 mono_emit_jit_icall (cfg, func, iargs);
1935 ret_type_to_call_opcode (MonoCompile *cfg, MonoType *type, int calli, int virt)
1938 type = mini_get_underlying_type (type);
1939 switch (type->type) {
1940 case MONO_TYPE_VOID:
1941 return calli? OP_VOIDCALL_REG: virt? OP_VOIDCALL_MEMBASE: OP_VOIDCALL;
1948 return calli? OP_CALL_REG: virt? OP_CALL_MEMBASE: OP_CALL;
1952 case MONO_TYPE_FNPTR:
1953 return calli? OP_CALL_REG: virt? OP_CALL_MEMBASE: OP_CALL;
1954 case MONO_TYPE_CLASS:
1955 case MONO_TYPE_STRING:
1956 case MONO_TYPE_OBJECT:
1957 case MONO_TYPE_SZARRAY:
1958 case MONO_TYPE_ARRAY:
1959 return calli? OP_CALL_REG: virt? OP_CALL_MEMBASE: OP_CALL;
1962 return calli? OP_LCALL_REG: virt? OP_LCALL_MEMBASE: OP_LCALL;
1965 return calli? OP_RCALL_REG: virt? OP_RCALL_MEMBASE: OP_RCALL;
1967 return calli? OP_FCALL_REG: virt? OP_FCALL_MEMBASE: OP_FCALL;
1969 return calli? OP_FCALL_REG: virt? OP_FCALL_MEMBASE: OP_FCALL;
1970 case MONO_TYPE_VALUETYPE:
1971 if (type->data.klass->enumtype) {
1972 type = mono_class_enum_basetype (type->data.klass);
1975 return calli? OP_VCALL_REG: virt? OP_VCALL_MEMBASE: OP_VCALL;
1976 case MONO_TYPE_TYPEDBYREF:
1977 return calli? OP_VCALL_REG: virt? OP_VCALL_MEMBASE: OP_VCALL;
1978 case MONO_TYPE_GENERICINST:
1979 type = &type->data.generic_class->container_class->byval_arg;
1982 case MONO_TYPE_MVAR:
1984 return calli? OP_VCALL_REG: virt? OP_VCALL_MEMBASE: OP_VCALL;
1986 g_error ("unknown type 0x%02x in ret_type_to_call_opcode", type->type);
1991 //XXX this ignores if t is byref
1992 #define MONO_TYPE_IS_PRIMITIVE_SCALAR(t) ((((((t)->type >= MONO_TYPE_BOOLEAN && (t)->type <= MONO_TYPE_U8) || ((t)->type >= MONO_TYPE_I && (t)->type <= MONO_TYPE_U)))))
1995 * target_type_is_incompatible:
1996 * @cfg: MonoCompile context
1998 * Check that the item @arg on the evaluation stack can be stored
1999 * in the target type (can be a local, or field, etc).
2000 * The cfg arg can be used to check if we need verification or just
2003 * Returns: non-0 value if arg can't be stored on a target.
2006 target_type_is_incompatible (MonoCompile *cfg, MonoType *target, MonoInst *arg)
2008 MonoType *simple_type;
2011 if (target->byref) {
2012 /* FIXME: check that the pointed to types match */
2013 if (arg->type == STACK_MP) {
2014 /* This is needed to handle gshared types + ldaddr. We lower the types so we can handle enums and other typedef-like types. */
2015 MonoClass *target_class_lowered = mono_class_from_mono_type (mini_get_underlying_type (&mono_class_from_mono_type (target)->byval_arg));
2016 MonoClass *source_class_lowered = mono_class_from_mono_type (mini_get_underlying_type (&arg->klass->byval_arg));
2018 /* if the target is native int& or same type */
2019 if (target->type == MONO_TYPE_I || target_class_lowered == source_class_lowered)
2022 /* Both are primitive type byrefs and the source points to a larger type that the destination */
2023 if (MONO_TYPE_IS_PRIMITIVE_SCALAR (&target_class_lowered->byval_arg) && MONO_TYPE_IS_PRIMITIVE_SCALAR (&source_class_lowered->byval_arg) &&
2024 mono_class_instance_size (target_class_lowered) <= mono_class_instance_size (source_class_lowered))
2028 if (arg->type == STACK_PTR)
2033 simple_type = mini_get_underlying_type (target);
2034 switch (simple_type->type) {
2035 case MONO_TYPE_VOID:
2043 if (arg->type != STACK_I4 && arg->type != STACK_PTR)
2047 /* STACK_MP is needed when setting pinned locals */
2048 if (arg->type != STACK_I4 && arg->type != STACK_PTR && arg->type != STACK_MP)
2053 case MONO_TYPE_FNPTR:
2055 * Some opcodes like ldloca returns 'transient pointers' which can be stored in
2056 * in native int. (#688008).
2058 if (arg->type != STACK_I4 && arg->type != STACK_PTR && arg->type != STACK_MP)
2061 case MONO_TYPE_CLASS:
2062 case MONO_TYPE_STRING:
2063 case MONO_TYPE_OBJECT:
2064 case MONO_TYPE_SZARRAY:
2065 case MONO_TYPE_ARRAY:
2066 if (arg->type != STACK_OBJ)
2068 /* FIXME: check type compatibility */
2072 if (arg->type != STACK_I8)
2076 if (arg->type != cfg->r4_stack_type)
2080 if (arg->type != STACK_R8)
2083 case MONO_TYPE_VALUETYPE:
2084 if (arg->type != STACK_VTYPE)
2086 klass = mono_class_from_mono_type (simple_type);
2087 if (klass != arg->klass)
2090 case MONO_TYPE_TYPEDBYREF:
2091 if (arg->type != STACK_VTYPE)
2093 klass = mono_class_from_mono_type (simple_type);
2094 if (klass != arg->klass)
2097 case MONO_TYPE_GENERICINST:
2098 if (mono_type_generic_inst_is_valuetype (simple_type)) {
2099 MonoClass *target_class;
2100 if (arg->type != STACK_VTYPE)
2102 klass = mono_class_from_mono_type (simple_type);
2103 target_class = mono_class_from_mono_type (target);
2104 /* The second cases is needed when doing partial sharing */
2105 if (klass != arg->klass && target_class != arg->klass && target_class != mono_class_from_mono_type (mini_get_underlying_type (&arg->klass->byval_arg)))
2109 if (arg->type != STACK_OBJ)
2111 /* FIXME: check type compatibility */
2115 case MONO_TYPE_MVAR:
2116 g_assert (cfg->gshared);
2117 if (mini_type_var_is_vt (simple_type)) {
2118 if (arg->type != STACK_VTYPE)
2121 if (arg->type != STACK_OBJ)
2126 g_error ("unknown type 0x%02x in target_type_is_incompatible", simple_type->type);
2132 * Prepare arguments for passing to a function call.
2133 * Return a non-zero value if the arguments can't be passed to the given
2135 * The type checks are not yet complete and some conversions may need
2136 * casts on 32 or 64 bit architectures.
2138 * FIXME: implement this using target_type_is_incompatible ()
2141 check_call_signature (MonoCompile *cfg, MonoMethodSignature *sig, MonoInst **args)
2143 MonoType *simple_type;
2147 if (args [0]->type != STACK_OBJ && args [0]->type != STACK_MP && args [0]->type != STACK_PTR)
2151 for (i = 0; i < sig->param_count; ++i) {
2152 if (sig->params [i]->byref) {
2153 if (args [i]->type != STACK_MP && args [i]->type != STACK_PTR)
2157 simple_type = mini_get_underlying_type (sig->params [i]);
2159 switch (simple_type->type) {
2160 case MONO_TYPE_VOID:
2169 if (args [i]->type != STACK_I4 && args [i]->type != STACK_PTR)
2175 case MONO_TYPE_FNPTR:
2176 if (args [i]->type != STACK_I4 && args [i]->type != STACK_PTR && args [i]->type != STACK_MP && args [i]->type != STACK_OBJ)
2179 case MONO_TYPE_CLASS:
2180 case MONO_TYPE_STRING:
2181 case MONO_TYPE_OBJECT:
2182 case MONO_TYPE_SZARRAY:
2183 case MONO_TYPE_ARRAY:
2184 if (args [i]->type != STACK_OBJ)
2189 if (args [i]->type != STACK_I8)
2193 if (args [i]->type != cfg->r4_stack_type)
2197 if (args [i]->type != STACK_R8)
2200 case MONO_TYPE_VALUETYPE:
2201 if (simple_type->data.klass->enumtype) {
2202 simple_type = mono_class_enum_basetype (simple_type->data.klass);
2205 if (args [i]->type != STACK_VTYPE)
2208 case MONO_TYPE_TYPEDBYREF:
2209 if (args [i]->type != STACK_VTYPE)
2212 case MONO_TYPE_GENERICINST:
2213 simple_type = &simple_type->data.generic_class->container_class->byval_arg;
2216 case MONO_TYPE_MVAR:
2218 if (args [i]->type != STACK_VTYPE)
2222 g_error ("unknown type 0x%02x in check_call_signature",
2230 callvirt_to_call (int opcode)
2233 case OP_CALL_MEMBASE:
2235 case OP_VOIDCALL_MEMBASE:
2237 case OP_FCALL_MEMBASE:
2239 case OP_RCALL_MEMBASE:
2241 case OP_VCALL_MEMBASE:
2243 case OP_LCALL_MEMBASE:
2246 g_assert_not_reached ();
2253 callvirt_to_call_reg (int opcode)
2256 case OP_CALL_MEMBASE:
2258 case OP_VOIDCALL_MEMBASE:
2259 return OP_VOIDCALL_REG;
2260 case OP_FCALL_MEMBASE:
2261 return OP_FCALL_REG;
2262 case OP_RCALL_MEMBASE:
2263 return OP_RCALL_REG;
2264 case OP_VCALL_MEMBASE:
2265 return OP_VCALL_REG;
2266 case OP_LCALL_MEMBASE:
2267 return OP_LCALL_REG;
2269 g_assert_not_reached ();
2275 /* Either METHOD or IMT_ARG needs to be set */
2277 emit_imt_argument (MonoCompile *cfg, MonoCallInst *call, MonoMethod *method, MonoInst *imt_arg)
2281 if (COMPILE_LLVM (cfg)) {
2283 method_reg = alloc_preg (cfg);
2284 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, method_reg, imt_arg->dreg);
2286 MonoInst *ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_METHODCONST, method);
2287 method_reg = ins->dreg;
2291 call->imt_arg_reg = method_reg;
2293 mono_call_inst_add_outarg_reg (cfg, call, method_reg, MONO_ARCH_IMT_REG, FALSE);
2298 method_reg = alloc_preg (cfg);
2299 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, method_reg, imt_arg->dreg);
2301 MonoInst *ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_METHODCONST, method);
2302 method_reg = ins->dreg;
2305 mono_call_inst_add_outarg_reg (cfg, call, method_reg, MONO_ARCH_IMT_REG, FALSE);
2308 static MonoJumpInfo *
2309 mono_patch_info_new (MonoMemPool *mp, int ip, MonoJumpInfoType type, gconstpointer target)
2311 MonoJumpInfo *ji = (MonoJumpInfo *)mono_mempool_alloc (mp, sizeof (MonoJumpInfo));
2315 ji->data.target = target;
2321 mini_class_check_context_used (MonoCompile *cfg, MonoClass *klass)
2324 return mono_class_check_context_used (klass);
2330 mini_method_check_context_used (MonoCompile *cfg, MonoMethod *method)
2333 return mono_method_check_context_used (method);
2339 * check_method_sharing:
2341 * Check whenever the vtable or an mrgctx needs to be passed when calling CMETHOD.
2344 check_method_sharing (MonoCompile *cfg, MonoMethod *cmethod, gboolean *out_pass_vtable, gboolean *out_pass_mrgctx)
2346 gboolean pass_vtable = FALSE;
2347 gboolean pass_mrgctx = FALSE;
2349 if (((cmethod->flags & METHOD_ATTRIBUTE_STATIC) || cmethod->klass->valuetype) &&
2350 (mono_class_is_ginst (cmethod->klass) || mono_class_is_gtd (cmethod->klass))) {
2351 gboolean sharable = FALSE;
2353 if (mono_method_is_generic_sharable_full (cmethod, TRUE, TRUE, TRUE))
2357 * Pass vtable iff target method might
2358 * be shared, which means that sharing
2359 * is enabled for its class and its
2360 * context is sharable (and it's not a
2363 if (sharable && !(mini_method_get_context (cmethod) && mini_method_get_context (cmethod)->method_inst))
2367 if (mini_method_get_context (cmethod) &&
2368 mini_method_get_context (cmethod)->method_inst) {
2369 g_assert (!pass_vtable);
2371 if (mono_method_is_generic_sharable_full (cmethod, TRUE, TRUE, TRUE)) {
2374 if (cfg->gsharedvt && mini_is_gsharedvt_signature (mono_method_signature (cmethod)))
2379 if (out_pass_vtable)
2380 *out_pass_vtable = pass_vtable;
2381 if (out_pass_mrgctx)
2382 *out_pass_mrgctx = pass_mrgctx;
2385 inline static MonoCallInst *
2386 mono_emit_call_args (MonoCompile *cfg, MonoMethodSignature *sig,
2387 MonoInst **args, int calli, int virtual_, int tail, int rgctx, int unbox_trampoline)
2391 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
2399 emit_instrumentation_call (cfg, mono_profiler_method_leave);
2401 MONO_INST_NEW_CALL (cfg, call, OP_TAILCALL);
2403 MONO_INST_NEW_CALL (cfg, call, ret_type_to_call_opcode (cfg, sig->ret, calli, virtual_));
2406 call->signature = sig;
2407 call->rgctx_reg = rgctx;
2408 sig_ret = mini_get_underlying_type (sig->ret);
2410 type_to_eval_stack_type ((cfg), sig_ret, &call->inst);
2413 if (mini_type_is_vtype (sig_ret)) {
2414 call->vret_var = cfg->vret_addr;
2415 //g_assert_not_reached ();
2417 } else if (mini_type_is_vtype (sig_ret)) {
2418 MonoInst *temp = mono_compile_create_var (cfg, sig_ret, OP_LOCAL);
2421 temp->backend.is_pinvoke = sig->pinvoke;
2424 * We use a new opcode OP_OUTARG_VTRETADDR instead of LDADDR for emitting the
2425 * address of return value to increase optimization opportunities.
2426 * Before vtype decomposition, the dreg of the call ins itself represents the
2427 * fact the call modifies the return value. After decomposition, the call will
2428 * be transformed into one of the OP_VOIDCALL opcodes, and the VTRETADDR opcode
2429 * will be transformed into an LDADDR.
2431 MONO_INST_NEW (cfg, loada, OP_OUTARG_VTRETADDR);
2432 loada->dreg = alloc_preg (cfg);
2433 loada->inst_p0 = temp;
2434 /* We reference the call too since call->dreg could change during optimization */
2435 loada->inst_p1 = call;
2436 MONO_ADD_INS (cfg->cbb, loada);
2438 call->inst.dreg = temp->dreg;
2440 call->vret_var = loada;
2441 } else if (!MONO_TYPE_IS_VOID (sig_ret))
2442 call->inst.dreg = alloc_dreg (cfg, (MonoStackType)call->inst.type);
2444 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
2445 if (COMPILE_SOFT_FLOAT (cfg)) {
2447 * If the call has a float argument, we would need to do an r8->r4 conversion using
2448 * an icall, but that cannot be done during the call sequence since it would clobber
2449 * the call registers + the stack. So we do it before emitting the call.
2451 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
2453 MonoInst *in = call->args [i];
2455 if (i >= sig->hasthis)
2456 t = sig->params [i - sig->hasthis];
2458 t = &mono_defaults.int_class->byval_arg;
2459 t = mono_type_get_underlying_type (t);
2461 if (!t->byref && t->type == MONO_TYPE_R4) {
2462 MonoInst *iargs [1];
2466 conv = mono_emit_jit_icall (cfg, mono_fload_r4_arg, iargs);
2468 /* The result will be in an int vreg */
2469 call->args [i] = conv;
2475 call->need_unbox_trampoline = unbox_trampoline;
2478 if (COMPILE_LLVM (cfg))
2479 mono_llvm_emit_call (cfg, call);
2481 mono_arch_emit_call (cfg, call);
2483 mono_arch_emit_call (cfg, call);
2486 cfg->param_area = MAX (cfg->param_area, call->stack_usage);
2487 cfg->flags |= MONO_CFG_HAS_CALLS;
2493 set_rgctx_arg (MonoCompile *cfg, MonoCallInst *call, int rgctx_reg, MonoInst *rgctx_arg)
2495 mono_call_inst_add_outarg_reg (cfg, call, rgctx_reg, MONO_ARCH_RGCTX_REG, FALSE);
2496 cfg->uses_rgctx_reg = TRUE;
2497 call->rgctx_reg = TRUE;
2499 call->rgctx_arg_reg = rgctx_reg;
2503 inline static MonoInst*
2504 mono_emit_calli (MonoCompile *cfg, MonoMethodSignature *sig, MonoInst **args, MonoInst *addr, MonoInst *imt_arg, MonoInst *rgctx_arg)
2509 gboolean check_sp = FALSE;
2511 if (cfg->check_pinvoke_callconv && cfg->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
2512 WrapperInfo *info = mono_marshal_get_wrapper_info (cfg->method);
2514 if (info && info->subtype == WRAPPER_SUBTYPE_PINVOKE)
2519 rgctx_reg = mono_alloc_preg (cfg);
2520 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, rgctx_reg, rgctx_arg->dreg);
2524 if (!cfg->stack_inbalance_var)
2525 cfg->stack_inbalance_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
2527 MONO_INST_NEW (cfg, ins, OP_GET_SP);
2528 ins->dreg = cfg->stack_inbalance_var->dreg;
2529 MONO_ADD_INS (cfg->cbb, ins);
2532 call = mono_emit_call_args (cfg, sig, args, TRUE, FALSE, FALSE, rgctx_arg ? TRUE : FALSE, FALSE);
2534 call->inst.sreg1 = addr->dreg;
2537 emit_imt_argument (cfg, call, NULL, imt_arg);
2539 MONO_ADD_INS (cfg->cbb, (MonoInst*)call);
2544 sp_reg = mono_alloc_preg (cfg);
2546 MONO_INST_NEW (cfg, ins, OP_GET_SP);
2548 MONO_ADD_INS (cfg->cbb, ins);
2550 /* Restore the stack so we don't crash when throwing the exception */
2551 MONO_INST_NEW (cfg, ins, OP_SET_SP);
2552 ins->sreg1 = cfg->stack_inbalance_var->dreg;
2553 MONO_ADD_INS (cfg->cbb, ins);
2555 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, cfg->stack_inbalance_var->dreg, sp_reg);
2556 MONO_EMIT_NEW_COND_EXC (cfg, NE_UN, "ExecutionEngineException");
2560 set_rgctx_arg (cfg, call, rgctx_reg, rgctx_arg);
2562 return (MonoInst*)call;
2566 emit_get_gsharedvt_info_klass (MonoCompile *cfg, MonoClass *klass, MonoRgctxInfoType rgctx_type);
2569 emit_get_rgctx_method (MonoCompile *cfg, int context_used, MonoMethod *cmethod, MonoRgctxInfoType rgctx_type);
2572 mono_emit_method_call_full (MonoCompile *cfg, MonoMethod *method, MonoMethodSignature *sig, gboolean tail,
2573 MonoInst **args, MonoInst *this_ins, MonoInst *imt_arg, MonoInst *rgctx_arg)
2575 #ifndef DISABLE_REMOTING
2576 gboolean might_be_remote = FALSE;
2578 gboolean virtual_ = this_ins != NULL;
2579 gboolean enable_for_aot = TRUE;
2582 MonoInst *call_target = NULL;
2584 gboolean need_unbox_trampoline;
2587 sig = mono_method_signature (method);
2589 if (cfg->llvm_only && (mono_class_is_interface (method->klass)))
2590 g_assert_not_reached ();
2593 rgctx_reg = mono_alloc_preg (cfg);
2594 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, rgctx_reg, rgctx_arg->dreg);
2597 if (method->string_ctor) {
2598 /* Create the real signature */
2599 /* FIXME: Cache these */
2600 MonoMethodSignature *ctor_sig = mono_metadata_signature_dup_mempool (cfg->mempool, sig);
2601 ctor_sig->ret = &mono_defaults.string_class->byval_arg;
2606 context_used = mini_method_check_context_used (cfg, method);
2608 #ifndef DISABLE_REMOTING
2609 might_be_remote = this_ins && sig->hasthis &&
2610 (mono_class_is_marshalbyref (method->klass) || method->klass == mono_defaults.object_class) &&
2611 !(method->flags & METHOD_ATTRIBUTE_VIRTUAL) && (!MONO_CHECK_THIS (this_ins) || context_used);
2613 if (might_be_remote && context_used) {
2616 g_assert (cfg->gshared);
2618 addr = emit_get_rgctx_method (cfg, context_used, method, MONO_RGCTX_INFO_REMOTING_INVOKE_WITH_CHECK);
2620 return mono_emit_calli (cfg, sig, args, addr, NULL, NULL);
2624 if (cfg->llvm_only && !call_target && virtual_ && (method->flags & METHOD_ATTRIBUTE_VIRTUAL))
2625 return emit_llvmonly_virtual_call (cfg, method, sig, 0, args);
2627 need_unbox_trampoline = method->klass == mono_defaults.object_class || mono_class_is_interface (method->klass);
2629 call = mono_emit_call_args (cfg, sig, args, FALSE, virtual_, tail, rgctx_arg ? TRUE : FALSE, need_unbox_trampoline);
2631 #ifndef DISABLE_REMOTING
2632 if (might_be_remote)
2633 call->method = mono_marshal_get_remoting_invoke_with_check (method);
2636 call->method = method;
2637 call->inst.flags |= MONO_INST_HAS_METHOD;
2638 call->inst.inst_left = this_ins;
2639 call->tail_call = tail;
2642 int vtable_reg, slot_reg, this_reg;
2645 this_reg = this_ins->dreg;
2647 if (!cfg->llvm_only && (method->klass->parent == mono_defaults.multicastdelegate_class) && !strcmp (method->name, "Invoke")) {
2648 MonoInst *dummy_use;
2650 MONO_EMIT_NULL_CHECK (cfg, this_reg);
2652 /* Make a call to delegate->invoke_impl */
2653 call->inst.inst_basereg = this_reg;
2654 call->inst.inst_offset = MONO_STRUCT_OFFSET (MonoDelegate, invoke_impl);
2655 MONO_ADD_INS (cfg->cbb, (MonoInst*)call);
2657 /* We must emit a dummy use here because the delegate trampoline will
2658 replace the 'this' argument with the delegate target making this activation
2659 no longer a root for the delegate.
2660 This is an issue for delegates that target collectible code such as dynamic
2661 methods of GC'able assemblies.
2663 For a test case look into #667921.
2665 FIXME: a dummy use is not the best way to do it as the local register allocator
2666 will put it on a caller save register and spil it around the call.
2667 Ideally, we would either put it on a callee save register or only do the store part.
2669 EMIT_NEW_DUMMY_USE (cfg, dummy_use, args [0]);
2671 return (MonoInst*)call;
2674 if ((!cfg->compile_aot || enable_for_aot) &&
2675 (!(method->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
2676 (MONO_METHOD_IS_FINAL (method) &&
2677 method->wrapper_type != MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)) &&
2678 !(mono_class_is_marshalbyref (method->klass) && context_used)) {
2680 * the method is not virtual, we just need to ensure this is not null
2681 * and then we can call the method directly.
2683 #ifndef DISABLE_REMOTING
2684 if (mono_class_is_marshalbyref (method->klass) || method->klass == mono_defaults.object_class) {
2686 * The check above ensures method is not gshared, this is needed since
2687 * gshared methods can't have wrappers.
2689 method = call->method = mono_marshal_get_remoting_invoke_with_check (method);
2693 if (!method->string_ctor)
2694 MONO_EMIT_NEW_CHECK_THIS (cfg, this_reg);
2696 call->inst.opcode = callvirt_to_call (call->inst.opcode);
2697 } else if ((method->flags & METHOD_ATTRIBUTE_VIRTUAL) && MONO_METHOD_IS_FINAL (method)) {
2699 * the method is virtual, but we can statically dispatch since either
2700 * it's class or the method itself are sealed.
2701 * But first we need to ensure it's not a null reference.
2703 MONO_EMIT_NEW_CHECK_THIS (cfg, this_reg);
2705 call->inst.opcode = callvirt_to_call (call->inst.opcode);
2706 } else if (call_target) {
2707 vtable_reg = alloc_preg (cfg);
2708 MONO_EMIT_NEW_LOAD_MEMBASE_FAULT (cfg, vtable_reg, this_reg, MONO_STRUCT_OFFSET (MonoObject, vtable));
2710 call->inst.opcode = callvirt_to_call_reg (call->inst.opcode);
2711 call->inst.sreg1 = call_target->dreg;
2712 call->inst.flags &= !MONO_INST_HAS_METHOD;
2714 vtable_reg = alloc_preg (cfg);
2715 MONO_EMIT_NEW_LOAD_MEMBASE_FAULT (cfg, vtable_reg, this_reg, MONO_STRUCT_OFFSET (MonoObject, vtable));
2716 if (mono_class_is_interface (method->klass)) {
2717 guint32 imt_slot = mono_method_get_imt_slot (method);
2718 emit_imt_argument (cfg, call, call->method, imt_arg);
2719 slot_reg = vtable_reg;
2720 offset = ((gint32)imt_slot - MONO_IMT_SIZE) * SIZEOF_VOID_P;
2722 slot_reg = vtable_reg;
2723 offset = MONO_STRUCT_OFFSET (MonoVTable, vtable) +
2724 ((mono_method_get_vtable_index (method)) * (SIZEOF_VOID_P));
2726 g_assert (mono_method_signature (method)->generic_param_count);
2727 emit_imt_argument (cfg, call, call->method, imt_arg);
2731 call->inst.sreg1 = slot_reg;
2732 call->inst.inst_offset = offset;
2733 call->is_virtual = TRUE;
2737 MONO_ADD_INS (cfg->cbb, (MonoInst*)call);
2740 set_rgctx_arg (cfg, call, rgctx_reg, rgctx_arg);
2742 return (MonoInst*)call;
2746 mono_emit_method_call (MonoCompile *cfg, MonoMethod *method, MonoInst **args, MonoInst *this_ins)
2748 return mono_emit_method_call_full (cfg, method, mono_method_signature (method), FALSE, args, this_ins, NULL, NULL);
2752 mono_emit_native_call (MonoCompile *cfg, gconstpointer func, MonoMethodSignature *sig,
2759 call = mono_emit_call_args (cfg, sig, args, FALSE, FALSE, FALSE, FALSE, FALSE);
2762 MONO_ADD_INS (cfg->cbb, (MonoInst*)call);
2764 return (MonoInst*)call;
2768 mono_emit_jit_icall (MonoCompile *cfg, gconstpointer func, MonoInst **args)
2770 MonoJitICallInfo *info = mono_find_jit_icall_by_addr (func);
2774 return mono_emit_native_call (cfg, mono_icall_get_wrapper (info), info->sig, args);
2778 * mono_emit_abs_call:
2780 * Emit a call to the runtime function described by PATCH_TYPE and DATA.
2782 inline static MonoInst*
2783 mono_emit_abs_call (MonoCompile *cfg, MonoJumpInfoType patch_type, gconstpointer data,
2784 MonoMethodSignature *sig, MonoInst **args)
2786 MonoJumpInfo *ji = mono_patch_info_new (cfg->mempool, 0, patch_type, data);
2790 * We pass ji as the call address, the PATCH_INFO_ABS resolving code will
2793 if (cfg->abs_patches == NULL)
2794 cfg->abs_patches = g_hash_table_new (NULL, NULL);
2795 g_hash_table_insert (cfg->abs_patches, ji, ji);
2796 ins = mono_emit_native_call (cfg, ji, sig, args);
2797 ((MonoCallInst*)ins)->fptr_is_patch = TRUE;
2801 static MonoMethodSignature*
2802 sig_to_rgctx_sig (MonoMethodSignature *sig)
2804 // FIXME: memory allocation
2805 MonoMethodSignature *res;
2808 res = (MonoMethodSignature *)g_malloc (MONO_SIZEOF_METHOD_SIGNATURE + (sig->param_count + 1) * sizeof (MonoType*));
2809 memcpy (res, sig, MONO_SIZEOF_METHOD_SIGNATURE);
2810 res->param_count = sig->param_count + 1;
2811 for (i = 0; i < sig->param_count; ++i)
2812 res->params [i] = sig->params [i];
2813 res->params [sig->param_count] = &mono_defaults.int_class->this_arg;
2817 /* Make an indirect call to FSIG passing an additional argument */
2819 emit_extra_arg_calli (MonoCompile *cfg, MonoMethodSignature *fsig, MonoInst **orig_args, int arg_reg, MonoInst *call_target)
2821 MonoMethodSignature *csig;
2822 MonoInst *args_buf [16];
2824 int i, pindex, tmp_reg;
2826 /* Make a call with an rgctx/extra arg */
2827 if (fsig->param_count + 2 < 16)
2830 args = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * (fsig->param_count + 2));
2833 args [pindex ++] = orig_args [0];
2834 for (i = 0; i < fsig->param_count; ++i)
2835 args [pindex ++] = orig_args [fsig->hasthis + i];
2836 tmp_reg = alloc_preg (cfg);
2837 EMIT_NEW_UNALU (cfg, args [pindex], OP_MOVE, tmp_reg, arg_reg);
2838 csig = sig_to_rgctx_sig (fsig);
2839 return mono_emit_calli (cfg, csig, args, call_target, NULL, NULL);
2842 /* Emit an indirect call to the function descriptor ADDR */
2844 emit_llvmonly_calli (MonoCompile *cfg, MonoMethodSignature *fsig, MonoInst **args, MonoInst *addr)
2846 int addr_reg, arg_reg;
2847 MonoInst *call_target;
2849 g_assert (cfg->llvm_only);
2852 * addr points to a <addr, arg> pair, load both of them, and
2853 * make a call to addr, passing arg as an extra arg.
2855 addr_reg = alloc_preg (cfg);
2856 EMIT_NEW_LOAD_MEMBASE (cfg, call_target, OP_LOAD_MEMBASE, addr_reg, addr->dreg, 0);
2857 arg_reg = alloc_preg (cfg);
2858 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, arg_reg, addr->dreg, sizeof (gpointer));
2860 return emit_extra_arg_calli (cfg, fsig, args, arg_reg, call_target);
2864 direct_icalls_enabled (MonoCompile *cfg)
2866 /* LLVM on amd64 can't handle calls to non-32 bit addresses */
2868 if (cfg->compile_llvm && !cfg->llvm_only)
2871 if (cfg->gen_sdb_seq_points || cfg->disable_direct_icalls)
2877 mono_emit_jit_icall_by_info (MonoCompile *cfg, int il_offset, MonoJitICallInfo *info, MonoInst **args)
2880 * Call the jit icall without a wrapper if possible.
2881 * The wrapper is needed for the following reasons:
2882 * - to handle exceptions thrown using mono_raise_exceptions () from the
2883 * icall function. The EH code needs the lmf frame pushed by the
2884 * wrapper to be able to unwind back to managed code.
2885 * - to be able to do stack walks for asynchronously suspended
2886 * threads when debugging.
2888 if (info->no_raise && direct_icalls_enabled (cfg)) {
2892 if (!info->wrapper_method) {
2893 name = g_strdup_printf ("__icall_wrapper_%s", info->name);
2894 info->wrapper_method = mono_marshal_get_icall_wrapper (info->sig, name, info->func, TRUE);
2896 mono_memory_barrier ();
2900 * Inline the wrapper method, which is basically a call to the C icall, and
2901 * an exception check.
2903 costs = inline_method (cfg, info->wrapper_method, NULL,
2904 args, NULL, il_offset, TRUE);
2905 g_assert (costs > 0);
2906 g_assert (!MONO_TYPE_IS_VOID (info->sig->ret));
2910 return mono_emit_native_call (cfg, mono_icall_get_wrapper (info), info->sig, args);
2915 mono_emit_widen_call_res (MonoCompile *cfg, MonoInst *ins, MonoMethodSignature *fsig)
2917 if (!MONO_TYPE_IS_VOID (fsig->ret)) {
2918 if ((fsig->pinvoke || LLVM_ENABLED) && !fsig->ret->byref) {
2922 * Native code might return non register sized integers
2923 * without initializing the upper bits.
2925 switch (mono_type_to_load_membase (cfg, fsig->ret)) {
2926 case OP_LOADI1_MEMBASE:
2927 widen_op = OP_ICONV_TO_I1;
2929 case OP_LOADU1_MEMBASE:
2930 widen_op = OP_ICONV_TO_U1;
2932 case OP_LOADI2_MEMBASE:
2933 widen_op = OP_ICONV_TO_I2;
2935 case OP_LOADU2_MEMBASE:
2936 widen_op = OP_ICONV_TO_U2;
2942 if (widen_op != -1) {
2943 int dreg = alloc_preg (cfg);
2946 EMIT_NEW_UNALU (cfg, widen, widen_op, dreg, ins->dreg);
2947 widen->type = ins->type;
2958 emit_method_access_failure (MonoCompile *cfg, MonoMethod *method, MonoMethod *cil_method)
2960 MonoInst *args [16];
2962 args [0] = emit_get_rgctx_method (cfg, mono_method_check_context_used (method), method, MONO_RGCTX_INFO_METHOD);
2963 args [1] = emit_get_rgctx_method (cfg, mono_method_check_context_used (cil_method), cil_method, MONO_RGCTX_INFO_METHOD);
2965 mono_emit_jit_icall (cfg, mono_throw_method_access, args);
2969 get_memcpy_method (void)
2971 static MonoMethod *memcpy_method = NULL;
2972 if (!memcpy_method) {
2973 memcpy_method = mono_class_get_method_from_name (mono_defaults.string_class, "memcpy", 3);
2975 g_error ("Old corlib found. Install a new one");
2977 return memcpy_method;
2981 create_write_barrier_bitmap (MonoCompile *cfg, MonoClass *klass, unsigned *wb_bitmap, int offset)
2983 MonoClassField *field;
2984 gpointer iter = NULL;
2986 while ((field = mono_class_get_fields (klass, &iter))) {
2989 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
2991 foffset = klass->valuetype ? field->offset - sizeof (MonoObject): field->offset;
2992 if (mini_type_is_reference (mono_field_get_type (field))) {
2993 g_assert ((foffset % SIZEOF_VOID_P) == 0);
2994 *wb_bitmap |= 1 << ((offset + foffset) / SIZEOF_VOID_P);
2996 MonoClass *field_class = mono_class_from_mono_type (field->type);
2997 if (field_class->has_references)
2998 create_write_barrier_bitmap (cfg, field_class, wb_bitmap, offset + foffset);
3004 emit_write_barrier (MonoCompile *cfg, MonoInst *ptr, MonoInst *value)
3006 int card_table_shift_bits;
3007 gpointer card_table_mask;
3009 MonoInst *dummy_use;
3010 int nursery_shift_bits;
3011 size_t nursery_size;
3013 if (!cfg->gen_write_barriers)
3016 card_table = mono_gc_get_card_table (&card_table_shift_bits, &card_table_mask);
3018 mono_gc_get_nursery (&nursery_shift_bits, &nursery_size);
3020 if (cfg->backend->have_card_table_wb && !cfg->compile_aot && card_table && nursery_shift_bits > 0 && !COMPILE_LLVM (cfg)) {
3023 MONO_INST_NEW (cfg, wbarrier, OP_CARD_TABLE_WBARRIER);
3024 wbarrier->sreg1 = ptr->dreg;
3025 wbarrier->sreg2 = value->dreg;
3026 MONO_ADD_INS (cfg->cbb, wbarrier);
3027 } else if (card_table && !cfg->compile_aot && !mono_gc_card_table_nursery_check ()) {
3028 int offset_reg = alloc_preg (cfg);
3032 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHR_UN_IMM, offset_reg, ptr->dreg, card_table_shift_bits);
3033 if (card_table_mask)
3034 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_PAND_IMM, offset_reg, offset_reg, card_table_mask);
3036 /*We can't use PADD_IMM since the cardtable might end up in high addresses and amd64 doesn't support
3037 * IMM's larger than 32bits.
3039 ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_GC_CARD_TABLE_ADDR, NULL);
3040 card_reg = ins->dreg;
3042 MONO_EMIT_NEW_BIALU (cfg, OP_PADD, offset_reg, offset_reg, card_reg);
3043 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STOREI1_MEMBASE_IMM, offset_reg, 0, 1);
3045 MonoMethod *write_barrier = mono_gc_get_write_barrier ();
3046 mono_emit_method_call (cfg, write_barrier, &ptr, NULL);
3049 EMIT_NEW_DUMMY_USE (cfg, dummy_use, value);
3053 mono_emit_wb_aware_memcpy (MonoCompile *cfg, MonoClass *klass, MonoInst *iargs[4], int size, int align)
3055 int dest_ptr_reg, tmp_reg, destreg, srcreg, offset;
3056 unsigned need_wb = 0;
3061 /*types with references can't have alignment smaller than sizeof(void*) */
3062 if (align < SIZEOF_VOID_P)
3065 /*This value cannot be bigger than 32 due to the way we calculate the required wb bitmap.*/
3066 if (size > 32 * SIZEOF_VOID_P)
3069 create_write_barrier_bitmap (cfg, klass, &need_wb, 0);
3071 /* We don't unroll more than 5 stores to avoid code bloat. */
3072 if (size > 5 * SIZEOF_VOID_P) {
3073 /*This is harmless and simplify mono_gc_wbarrier_value_copy_bitmap */
3074 size += (SIZEOF_VOID_P - 1);
3075 size &= ~(SIZEOF_VOID_P - 1);
3077 EMIT_NEW_ICONST (cfg, iargs [2], size);
3078 EMIT_NEW_ICONST (cfg, iargs [3], need_wb);
3079 mono_emit_jit_icall (cfg, mono_gc_wbarrier_value_copy_bitmap, iargs);
3083 destreg = iargs [0]->dreg;
3084 srcreg = iargs [1]->dreg;
3087 dest_ptr_reg = alloc_preg (cfg);
3088 tmp_reg = alloc_preg (cfg);
3091 EMIT_NEW_UNALU (cfg, iargs [0], OP_MOVE, dest_ptr_reg, destreg);
3093 while (size >= SIZEOF_VOID_P) {
3094 MonoInst *load_inst;
3095 MONO_INST_NEW (cfg, load_inst, OP_LOAD_MEMBASE);
3096 load_inst->dreg = tmp_reg;
3097 load_inst->inst_basereg = srcreg;
3098 load_inst->inst_offset = offset;
3099 MONO_ADD_INS (cfg->cbb, load_inst);
3101 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREP_MEMBASE_REG, dest_ptr_reg, 0, tmp_reg);
3104 emit_write_barrier (cfg, iargs [0], load_inst);
3106 offset += SIZEOF_VOID_P;
3107 size -= SIZEOF_VOID_P;
3110 /*tmp += sizeof (void*)*/
3111 if (size >= SIZEOF_VOID_P) {
3112 NEW_BIALU_IMM (cfg, iargs [0], OP_PADD_IMM, dest_ptr_reg, dest_ptr_reg, SIZEOF_VOID_P);
3113 MONO_ADD_INS (cfg->cbb, iargs [0]);
3117 /* Those cannot be references since size < sizeof (void*) */
3119 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, tmp_reg, srcreg, offset);
3120 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, destreg, offset, tmp_reg);
3126 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI2_MEMBASE, tmp_reg, srcreg, offset);
3127 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI2_MEMBASE_REG, destreg, offset, tmp_reg);
3133 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI1_MEMBASE, tmp_reg, srcreg, offset);
3134 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI1_MEMBASE_REG, destreg, offset, tmp_reg);
3143 * Emit code to copy a valuetype of type @klass whose address is stored in
3144 * @src->dreg to memory whose address is stored at @dest->dreg.
3147 mini_emit_stobj (MonoCompile *cfg, MonoInst *dest, MonoInst *src, MonoClass *klass, gboolean native)
3149 MonoInst *iargs [4];
3152 MonoMethod *memcpy_method;
3153 MonoInst *size_ins = NULL;
3154 MonoInst *memcpy_ins = NULL;
3158 klass = mono_class_from_mono_type (mini_get_underlying_type (&klass->byval_arg));
3161 * This check breaks with spilled vars... need to handle it during verification anyway.
3162 * g_assert (klass && klass == src->klass && klass == dest->klass);
3165 if (mini_is_gsharedvt_klass (klass)) {
3167 size_ins = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_VALUE_SIZE);
3168 memcpy_ins = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_MEMCPY);
3172 n = mono_class_native_size (klass, &align);
3174 n = mono_class_value_size (klass, &align);
3176 /* if native is true there should be no references in the struct */
3177 if (cfg->gen_write_barriers && (klass->has_references || size_ins) && !native) {
3178 /* Avoid barriers when storing to the stack */
3179 if (!((dest->opcode == OP_ADD_IMM && dest->sreg1 == cfg->frame_reg) ||
3180 (dest->opcode == OP_LDADDR))) {
3186 context_used = mini_class_check_context_used (cfg, klass);
3188 /* It's ok to intrinsify under gsharing since shared code types are layout stable. */
3189 if (!size_ins && (cfg->opt & MONO_OPT_INTRINS) && mono_emit_wb_aware_memcpy (cfg, klass, iargs, n, align)) {
3191 } else if (context_used) {
3192 iargs [2] = mini_emit_get_rgctx_klass (cfg, context_used, klass, MONO_RGCTX_INFO_KLASS);
3194 iargs [2] = emit_runtime_constant (cfg, MONO_PATCH_INFO_CLASS, klass);
3195 if (!cfg->compile_aot)
3196 mono_class_compute_gc_descriptor (klass);
3200 mono_emit_jit_icall (cfg, mono_gsharedvt_value_copy, iargs);
3202 mono_emit_jit_icall (cfg, mono_value_copy, iargs);
3207 if (!size_ins && (cfg->opt & MONO_OPT_INTRINS) && n <= sizeof (gpointer) * 8) {
3208 /* FIXME: Optimize the case when src/dest is OP_LDADDR */
3209 mini_emit_memcpy (cfg, dest->dreg, 0, src->dreg, 0, n, align);
3214 iargs [2] = size_ins;
3216 EMIT_NEW_ICONST (cfg, iargs [2], n);
3218 memcpy_method = get_memcpy_method ();
3220 mono_emit_calli (cfg, mono_method_signature (memcpy_method), iargs, memcpy_ins, NULL, NULL);
3222 mono_emit_method_call (cfg, memcpy_method, iargs, NULL);
3227 get_memset_method (void)
3229 static MonoMethod *memset_method = NULL;
3230 if (!memset_method) {
3231 memset_method = mono_class_get_method_from_name (mono_defaults.string_class, "memset", 3);
3233 g_error ("Old corlib found. Install a new one");
3235 return memset_method;
3239 mini_emit_initobj (MonoCompile *cfg, MonoInst *dest, const guchar *ip, MonoClass *klass)
3241 MonoInst *iargs [3];
3244 MonoMethod *memset_method;
3245 MonoInst *size_ins = NULL;
3246 MonoInst *bzero_ins = NULL;
3247 static MonoMethod *bzero_method;
3249 /* FIXME: Optimize this for the case when dest is an LDADDR */
3250 mono_class_init (klass);
3251 if (mini_is_gsharedvt_klass (klass)) {
3252 size_ins = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_VALUE_SIZE);
3253 bzero_ins = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_BZERO);
3255 bzero_method = mono_class_get_method_from_name (mono_defaults.string_class, "bzero_aligned_1", 2);
3256 g_assert (bzero_method);
3258 iargs [1] = size_ins;
3259 mono_emit_calli (cfg, mono_method_signature (bzero_method), iargs, bzero_ins, NULL, NULL);
3263 klass = mono_class_from_mono_type (mini_get_underlying_type (&klass->byval_arg));
3265 n = mono_class_value_size (klass, &align);
3267 if (n <= sizeof (gpointer) * 8) {
3268 mini_emit_memset (cfg, dest->dreg, 0, n, 0, align);
3271 memset_method = get_memset_method ();
3273 EMIT_NEW_ICONST (cfg, iargs [1], 0);
3274 EMIT_NEW_ICONST (cfg, iargs [2], n);
3275 mono_emit_method_call (cfg, memset_method, iargs, NULL);
3282 * Emit IR to return either the this pointer for instance method,
3283 * or the mrgctx for static methods.
3286 emit_get_rgctx (MonoCompile *cfg, MonoMethod *method, int context_used)
3288 MonoInst *this_ins = NULL;
3290 g_assert (cfg->gshared);
3292 if (!(method->flags & METHOD_ATTRIBUTE_STATIC) &&
3293 !(context_used & MONO_GENERIC_CONTEXT_USED_METHOD) &&
3294 !method->klass->valuetype)
3295 EMIT_NEW_VARLOAD (cfg, this_ins, cfg->this_arg, &mono_defaults.object_class->byval_arg);
3297 if (context_used & MONO_GENERIC_CONTEXT_USED_METHOD) {
3298 MonoInst *mrgctx_loc, *mrgctx_var;
3300 g_assert (!this_ins);
3301 g_assert (method->is_inflated && mono_method_get_context (method)->method_inst);
3303 mrgctx_loc = mono_get_vtable_var (cfg);
3304 EMIT_NEW_TEMPLOAD (cfg, mrgctx_var, mrgctx_loc->inst_c0);
3307 } else if (method->flags & METHOD_ATTRIBUTE_STATIC || method->klass->valuetype) {
3308 MonoInst *vtable_loc, *vtable_var;
3310 g_assert (!this_ins);
3312 vtable_loc = mono_get_vtable_var (cfg);
3313 EMIT_NEW_TEMPLOAD (cfg, vtable_var, vtable_loc->inst_c0);
3315 if (method->is_inflated && mono_method_get_context (method)->method_inst) {
3316 MonoInst *mrgctx_var = vtable_var;
3319 vtable_reg = alloc_preg (cfg);
3320 EMIT_NEW_LOAD_MEMBASE (cfg, vtable_var, OP_LOAD_MEMBASE, vtable_reg, mrgctx_var->dreg, MONO_STRUCT_OFFSET (MonoMethodRuntimeGenericContext, class_vtable));
3321 vtable_var->type = STACK_PTR;
3329 vtable_reg = alloc_preg (cfg);
3330 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, vtable_reg, this_ins->dreg, MONO_STRUCT_OFFSET (MonoObject, vtable));
3335 static MonoJumpInfoRgctxEntry *
3336 mono_patch_info_rgctx_entry_new (MonoMemPool *mp, MonoMethod *method, gboolean in_mrgctx, MonoJumpInfoType patch_type, gconstpointer patch_data, MonoRgctxInfoType info_type)
3338 MonoJumpInfoRgctxEntry *res = (MonoJumpInfoRgctxEntry *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfoRgctxEntry));
3339 res->method = method;
3340 res->in_mrgctx = in_mrgctx;
3341 res->data = (MonoJumpInfo *)mono_mempool_alloc0 (mp, sizeof (MonoJumpInfo));
3342 res->data->type = patch_type;
3343 res->data->data.target = patch_data;
3344 res->info_type = info_type;
3349 static inline MonoInst*
3350 emit_rgctx_fetch_inline (MonoCompile *cfg, MonoInst *rgctx, MonoJumpInfoRgctxEntry *entry)
3352 MonoInst *args [16];
3355 // FIXME: No fastpath since the slot is not a compile time constant
3357 EMIT_NEW_AOTCONST (cfg, args [1], MONO_PATCH_INFO_RGCTX_SLOT_INDEX, entry);
3358 if (entry->in_mrgctx)
3359 call = mono_emit_jit_icall (cfg, mono_fill_method_rgctx, args);
3361 call = mono_emit_jit_icall (cfg, mono_fill_class_rgctx, args);
3365 * FIXME: This can be called during decompose, which is a problem since it creates
3367 * Also, the fastpath doesn't work since the slot number is dynamically allocated.
3369 int i, slot, depth, index, rgctx_reg, val_reg, res_reg;
3371 MonoBasicBlock *is_null_bb, *end_bb;
3372 MonoInst *res, *ins, *call;
3375 slot = mini_get_rgctx_entry_slot (entry);
3377 mrgctx = MONO_RGCTX_SLOT_IS_MRGCTX (slot);
3378 index = MONO_RGCTX_SLOT_INDEX (slot);
3380 index += MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT / sizeof (gpointer);
3381 for (depth = 0; ; ++depth) {
3382 int size = mono_class_rgctx_get_array_size (depth, mrgctx);
3384 if (index < size - 1)
3389 NEW_BBLOCK (cfg, end_bb);
3390 NEW_BBLOCK (cfg, is_null_bb);
3393 rgctx_reg = rgctx->dreg;
3395 rgctx_reg = alloc_preg (cfg);
3397 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, rgctx_reg, rgctx->dreg, MONO_STRUCT_OFFSET (MonoVTable, runtime_generic_context));
3398 // FIXME: Avoid this check by allocating the table when the vtable is created etc.
3399 NEW_BBLOCK (cfg, is_null_bb);
3401 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, rgctx_reg, 0);
3402 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, is_null_bb);
3405 for (i = 0; i < depth; ++i) {
3406 int array_reg = alloc_preg (cfg);
3408 /* load ptr to next array */
3409 if (mrgctx && i == 0)
3410 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, array_reg, rgctx_reg, MONO_SIZEOF_METHOD_RUNTIME_GENERIC_CONTEXT);
3412 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, array_reg, rgctx_reg, 0);
3413 rgctx_reg = array_reg;
3414 /* is the ptr null? */
3415 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, rgctx_reg, 0);
3416 /* if yes, jump to actual trampoline */
3417 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, is_null_bb);
3421 val_reg = alloc_preg (cfg);
3422 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, val_reg, rgctx_reg, (index + 1) * sizeof (gpointer));
3423 /* is the slot null? */
3424 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, val_reg, 0);
3425 /* if yes, jump to actual trampoline */
3426 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, is_null_bb);
3429 res_reg = alloc_preg (cfg);
3430 MONO_INST_NEW (cfg, ins, OP_MOVE);
3431 ins->dreg = res_reg;
3432 ins->sreg1 = val_reg;
3433 MONO_ADD_INS (cfg->cbb, ins);
3435 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
3438 MONO_START_BB (cfg, is_null_bb);
3440 EMIT_NEW_ICONST (cfg, args [1], index);
3442 call = mono_emit_jit_icall (cfg, mono_fill_method_rgctx, args);
3444 call = mono_emit_jit_icall (cfg, mono_fill_class_rgctx, args);
3445 MONO_INST_NEW (cfg, ins, OP_MOVE);
3446 ins->dreg = res_reg;
3447 ins->sreg1 = call->dreg;
3448 MONO_ADD_INS (cfg->cbb, ins);
3449 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
3451 MONO_START_BB (cfg, end_bb);
3460 * Emit IR to load the value of the rgctx entry ENTRY from the rgctx
3463 static inline MonoInst*
3464 emit_rgctx_fetch (MonoCompile *cfg, MonoInst *rgctx, MonoJumpInfoRgctxEntry *entry)
3467 return emit_rgctx_fetch_inline (cfg, rgctx, entry);
3469 return mono_emit_abs_call (cfg, MONO_PATCH_INFO_RGCTX_FETCH, entry, helper_sig_rgctx_lazy_fetch_trampoline, &rgctx);
3473 mini_emit_get_rgctx_klass (MonoCompile *cfg, int context_used,
3474 MonoClass *klass, MonoRgctxInfoType rgctx_type)
3476 MonoJumpInfoRgctxEntry *entry = mono_patch_info_rgctx_entry_new (cfg->mempool, cfg->method, context_used & MONO_GENERIC_CONTEXT_USED_METHOD, MONO_PATCH_INFO_CLASS, klass, rgctx_type);
3477 MonoInst *rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3479 return emit_rgctx_fetch (cfg, rgctx, entry);
3483 emit_get_rgctx_sig (MonoCompile *cfg, int context_used,
3484 MonoMethodSignature *sig, MonoRgctxInfoType rgctx_type)
3486 MonoJumpInfoRgctxEntry *entry = mono_patch_info_rgctx_entry_new (cfg->mempool, cfg->method, context_used & MONO_GENERIC_CONTEXT_USED_METHOD, MONO_PATCH_INFO_SIGNATURE, sig, rgctx_type);
3487 MonoInst *rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3489 return emit_rgctx_fetch (cfg, rgctx, entry);
3493 emit_get_rgctx_gsharedvt_call (MonoCompile *cfg, int context_used,
3494 MonoMethodSignature *sig, MonoMethod *cmethod, MonoRgctxInfoType rgctx_type)
3496 MonoJumpInfoGSharedVtCall *call_info;
3497 MonoJumpInfoRgctxEntry *entry;
3500 call_info = (MonoJumpInfoGSharedVtCall *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfoGSharedVtCall));
3501 call_info->sig = sig;
3502 call_info->method = cmethod;
3504 entry = mono_patch_info_rgctx_entry_new (cfg->mempool, cfg->method, context_used & MONO_GENERIC_CONTEXT_USED_METHOD, MONO_PATCH_INFO_GSHAREDVT_CALL, call_info, rgctx_type);
3505 rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3507 return emit_rgctx_fetch (cfg, rgctx, entry);
3511 * emit_get_rgctx_virt_method:
3513 * Return data for method VIRT_METHOD for a receiver of type KLASS.
3516 emit_get_rgctx_virt_method (MonoCompile *cfg, int context_used,
3517 MonoClass *klass, MonoMethod *virt_method, MonoRgctxInfoType rgctx_type)
3519 MonoJumpInfoVirtMethod *info;
3520 MonoJumpInfoRgctxEntry *entry;
3523 info = (MonoJumpInfoVirtMethod *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoJumpInfoVirtMethod));
3524 info->klass = klass;
3525 info->method = virt_method;
3527 entry = mono_patch_info_rgctx_entry_new (cfg->mempool, cfg->method, context_used & MONO_GENERIC_CONTEXT_USED_METHOD, MONO_PATCH_INFO_VIRT_METHOD, info, rgctx_type);
3528 rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3530 return emit_rgctx_fetch (cfg, rgctx, entry);
3534 emit_get_rgctx_gsharedvt_method (MonoCompile *cfg, int context_used,
3535 MonoMethod *cmethod, MonoGSharedVtMethodInfo *info)
3537 MonoJumpInfoRgctxEntry *entry;
3540 entry = mono_patch_info_rgctx_entry_new (cfg->mempool, cfg->method, context_used & MONO_GENERIC_CONTEXT_USED_METHOD, MONO_PATCH_INFO_GSHAREDVT_METHOD, info, MONO_RGCTX_INFO_METHOD_GSHAREDVT_INFO);
3541 rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3543 return emit_rgctx_fetch (cfg, rgctx, entry);
3547 * emit_get_rgctx_method:
3549 * Emit IR to load the property RGCTX_TYPE of CMETHOD. If context_used is 0, emit
3550 * normal constants, else emit a load from the rgctx.
3553 emit_get_rgctx_method (MonoCompile *cfg, int context_used,
3554 MonoMethod *cmethod, MonoRgctxInfoType rgctx_type)
3556 if (!context_used) {
3559 switch (rgctx_type) {
3560 case MONO_RGCTX_INFO_METHOD:
3561 EMIT_NEW_METHODCONST (cfg, ins, cmethod);
3563 case MONO_RGCTX_INFO_METHOD_RGCTX:
3564 EMIT_NEW_METHOD_RGCTX_CONST (cfg, ins, cmethod);
3567 g_assert_not_reached ();
3570 MonoJumpInfoRgctxEntry *entry = mono_patch_info_rgctx_entry_new (cfg->mempool, cfg->method, context_used & MONO_GENERIC_CONTEXT_USED_METHOD, MONO_PATCH_INFO_METHODCONST, cmethod, rgctx_type);
3571 MonoInst *rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3573 return emit_rgctx_fetch (cfg, rgctx, entry);
3578 emit_get_rgctx_field (MonoCompile *cfg, int context_used,
3579 MonoClassField *field, MonoRgctxInfoType rgctx_type)
3581 MonoJumpInfoRgctxEntry *entry = mono_patch_info_rgctx_entry_new (cfg->mempool, cfg->method, context_used & MONO_GENERIC_CONTEXT_USED_METHOD, MONO_PATCH_INFO_FIELD, field, rgctx_type);
3582 MonoInst *rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3584 return emit_rgctx_fetch (cfg, rgctx, entry);
3588 get_gsharedvt_info_slot (MonoCompile *cfg, gpointer data, MonoRgctxInfoType rgctx_type)
3590 MonoGSharedVtMethodInfo *info = cfg->gsharedvt_info;
3591 MonoRuntimeGenericContextInfoTemplate *template_;
3596 for (i = 0; i < info->num_entries; ++i) {
3597 MonoRuntimeGenericContextInfoTemplate *otemplate = &info->entries [i];
3599 if (otemplate->info_type == rgctx_type && otemplate->data == data && rgctx_type != MONO_RGCTX_INFO_LOCAL_OFFSET)
3603 if (info->num_entries == info->count_entries) {
3604 MonoRuntimeGenericContextInfoTemplate *new_entries;
3605 int new_count_entries = info->count_entries ? info->count_entries * 2 : 16;
3607 new_entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoRuntimeGenericContextInfoTemplate) * new_count_entries);
3609 memcpy (new_entries, info->entries, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->count_entries);
3610 info->entries = new_entries;
3611 info->count_entries = new_count_entries;
3614 idx = info->num_entries;
3615 template_ = &info->entries [idx];
3616 template_->info_type = rgctx_type;
3617 template_->data = data;
3619 info->num_entries ++;
3625 * emit_get_gsharedvt_info:
3627 * This is similar to emit_get_rgctx_.., but loads the data from the gsharedvt info var instead of calling an rgctx fetch trampoline.
3630 emit_get_gsharedvt_info (MonoCompile *cfg, gpointer data, MonoRgctxInfoType rgctx_type)
3635 idx = get_gsharedvt_info_slot (cfg, data, rgctx_type);
3636 /* Load info->entries [idx] */
3637 dreg = alloc_preg (cfg);
3638 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, dreg, cfg->gsharedvt_info_var->dreg, MONO_STRUCT_OFFSET (MonoGSharedVtMethodRuntimeInfo, entries) + (idx * sizeof (gpointer)));
3644 emit_get_gsharedvt_info_klass (MonoCompile *cfg, MonoClass *klass, MonoRgctxInfoType rgctx_type)
3646 return emit_get_gsharedvt_info (cfg, &klass->byval_arg, rgctx_type);
3650 * On return the caller must check @klass for load errors.
3653 emit_class_init (MonoCompile *cfg, MonoClass *klass)
3655 MonoInst *vtable_arg;
3658 context_used = mini_class_check_context_used (cfg, klass);
3661 vtable_arg = mini_emit_get_rgctx_klass (cfg, context_used,
3662 klass, MONO_RGCTX_INFO_VTABLE);
3664 MonoVTable *vtable = mono_class_vtable (cfg->domain, klass);
3668 EMIT_NEW_VTABLECONST (cfg, vtable_arg, vtable);
3671 if (!COMPILE_LLVM (cfg) && cfg->backend->have_op_generic_class_init) {
3675 * Using an opcode instead of emitting IR here allows the hiding of the call inside the opcode,
3676 * so this doesn't have to clobber any regs and it doesn't break basic blocks.
3678 MONO_INST_NEW (cfg, ins, OP_GENERIC_CLASS_INIT);
3679 ins->sreg1 = vtable_arg->dreg;
3680 MONO_ADD_INS (cfg->cbb, ins);
3683 MonoBasicBlock *inited_bb;
3684 MonoInst *args [16];
3686 inited_reg = alloc_ireg (cfg);
3688 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADU1_MEMBASE, inited_reg, vtable_arg->dreg, MONO_STRUCT_OFFSET (MonoVTable, initialized));
3690 NEW_BBLOCK (cfg, inited_bb);
3692 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, inited_reg, 0);
3693 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBNE_UN, inited_bb);
3695 args [0] = vtable_arg;
3696 mono_emit_jit_icall (cfg, mono_generic_class_init, args);
3698 MONO_START_BB (cfg, inited_bb);
3703 emit_seq_point (MonoCompile *cfg, MonoMethod *method, guint8* ip, gboolean intr_loc, gboolean nonempty_stack)
3707 if (cfg->gen_seq_points && cfg->method == method) {
3708 NEW_SEQ_POINT (cfg, ins, ip - cfg->header->code, intr_loc);
3710 ins->flags |= MONO_INST_NONEMPTY_STACK;
3711 MONO_ADD_INS (cfg->cbb, ins);
3716 mini_save_cast_details (MonoCompile *cfg, MonoClass *klass, int obj_reg, gboolean null_check)
3718 if (mini_get_debug_options ()->better_cast_details) {
3719 int vtable_reg = alloc_preg (cfg);
3720 int klass_reg = alloc_preg (cfg);
3721 MonoBasicBlock *is_null_bb = NULL;
3723 int to_klass_reg, context_used;
3726 NEW_BBLOCK (cfg, is_null_bb);
3728 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, obj_reg, 0);
3729 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, is_null_bb);
3732 tls_get = mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
3734 fprintf (stderr, "error: --debug=casts not supported on this platform.\n.");
3738 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, vtable_reg, obj_reg, MONO_STRUCT_OFFSET (MonoObject, vtable));
3739 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, klass_reg, vtable_reg, MONO_STRUCT_OFFSET (MonoVTable, klass));
3741 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, tls_get->dreg, MONO_STRUCT_OFFSET (MonoJitTlsData, class_cast_from), klass_reg);
3743 context_used = mini_class_check_context_used (cfg, klass);
3745 MonoInst *class_ins;
3747 class_ins = mini_emit_get_rgctx_klass (cfg, context_used, klass, MONO_RGCTX_INFO_KLASS);
3748 to_klass_reg = class_ins->dreg;
3750 to_klass_reg = alloc_preg (cfg);
3751 MONO_EMIT_NEW_CLASSCONST (cfg, to_klass_reg, klass);
3753 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, tls_get->dreg, MONO_STRUCT_OFFSET (MonoJitTlsData, class_cast_to), to_klass_reg);
3756 MONO_START_BB (cfg, is_null_bb);
3761 mini_reset_cast_details (MonoCompile *cfg)
3763 /* Reset the variables holding the cast details */
3764 if (mini_get_debug_options ()->better_cast_details) {
3765 MonoInst *tls_get = mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
3766 /* It is enough to reset the from field */
3767 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STORE_MEMBASE_IMM, tls_get->dreg, MONO_STRUCT_OFFSET (MonoJitTlsData, class_cast_from), 0);
3772 * On return the caller must check @array_class for load errors
3775 mini_emit_check_array_type (MonoCompile *cfg, MonoInst *obj, MonoClass *array_class)
3777 int vtable_reg = alloc_preg (cfg);
3780 context_used = mini_class_check_context_used (cfg, array_class);
3782 mini_save_cast_details (cfg, array_class, obj->dreg, FALSE);
3784 MONO_EMIT_NEW_LOAD_MEMBASE_FAULT (cfg, vtable_reg, obj->dreg, MONO_STRUCT_OFFSET (MonoObject, vtable));
3786 if (cfg->opt & MONO_OPT_SHARED) {
3787 int class_reg = alloc_preg (cfg);
3790 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, class_reg, vtable_reg, MONO_STRUCT_OFFSET (MonoVTable, klass));
3791 ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_CLASS, array_class);
3792 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, class_reg, ins->dreg);
3793 } else if (context_used) {
3794 MonoInst *vtable_ins;
3796 vtable_ins = mini_emit_get_rgctx_klass (cfg, context_used, array_class, MONO_RGCTX_INFO_VTABLE);
3797 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, vtable_reg, vtable_ins->dreg);
3799 if (cfg->compile_aot) {
3803 if (!(vtable = mono_class_vtable (cfg->domain, array_class)))
3805 vt_reg = alloc_preg (cfg);
3806 MONO_EMIT_NEW_VTABLECONST (cfg, vt_reg, vtable);
3807 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, vtable_reg, vt_reg);
3810 if (!(vtable = mono_class_vtable (cfg->domain, array_class)))
3812 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, vtable_reg, vtable);
3816 MONO_EMIT_NEW_COND_EXC (cfg, NE_UN, "ArrayTypeMismatchException");
3818 mini_reset_cast_details (cfg);
3822 * Handles unbox of a Nullable<T>. If context_used is non zero, then shared
3823 * generic code is generated.
3826 handle_unbox_nullable (MonoCompile* cfg, MonoInst* val, MonoClass* klass, int context_used)
3828 MonoMethod* method = mono_class_get_method_from_name (klass, "Unbox", 1);
3831 MonoInst *rgctx, *addr;
3833 /* FIXME: What if the class is shared? We might not
3834 have to get the address of the method from the
3836 addr = emit_get_rgctx_method (cfg, context_used, method,
3837 MONO_RGCTX_INFO_GENERIC_METHOD_CODE);
3838 if (cfg->llvm_only) {
3839 cfg->signatures = g_slist_prepend_mempool (cfg->mempool, cfg->signatures, mono_method_signature (method));
3840 return emit_llvmonly_calli (cfg, mono_method_signature (method), &val, addr);
3842 rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
3844 return mono_emit_calli (cfg, mono_method_signature (method), &val, addr, NULL, rgctx);
3847 gboolean pass_vtable, pass_mrgctx;
3848 MonoInst *rgctx_arg = NULL;
3850 check_method_sharing (cfg, method, &pass_vtable, &pass_mrgctx);
3851 g_assert (!pass_mrgctx);
3854 MonoVTable *vtable = mono_class_vtable (cfg->domain, method->klass);
3857 EMIT_NEW_VTABLECONST (cfg, rgctx_arg, vtable);
3860 return mono_emit_method_call_full (cfg, method, NULL, FALSE, &val, NULL, NULL, rgctx_arg);
3865 handle_unbox (MonoCompile *cfg, MonoClass *klass, MonoInst **sp, int context_used)
3869 int vtable_reg = alloc_dreg (cfg ,STACK_PTR);
3870 int klass_reg = alloc_dreg (cfg ,STACK_PTR);
3871 int eclass_reg = alloc_dreg (cfg ,STACK_PTR);
3872 int rank_reg = alloc_dreg (cfg ,STACK_I4);
3874 obj_reg = sp [0]->dreg;
3875 MONO_EMIT_NEW_LOAD_MEMBASE_FAULT (cfg, vtable_reg, obj_reg, MONO_STRUCT_OFFSET (MonoObject, vtable));
3876 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADU1_MEMBASE, rank_reg, vtable_reg, MONO_STRUCT_OFFSET (MonoVTable, rank));
3878 /* FIXME: generics */
3879 g_assert (klass->rank == 0);
3882 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, rank_reg, 0);
3883 MONO_EMIT_NEW_COND_EXC (cfg, NE_UN, "InvalidCastException");
3885 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, klass_reg, vtable_reg, MONO_STRUCT_OFFSET (MonoVTable, klass));
3886 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, eclass_reg, klass_reg, MONO_STRUCT_OFFSET (MonoClass, element_class));
3889 MonoInst *element_class;
3891 /* This assertion is from the unboxcast insn */
3892 g_assert (klass->rank == 0);
3894 element_class = mini_emit_get_rgctx_klass (cfg, context_used,
3895 klass, MONO_RGCTX_INFO_ELEMENT_KLASS);
3897 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, eclass_reg, element_class->dreg);
3898 MONO_EMIT_NEW_COND_EXC (cfg, NE_UN, "InvalidCastException");
3900 mini_save_cast_details (cfg, klass->element_class, obj_reg, FALSE);
3901 mini_emit_class_check (cfg, eclass_reg, klass->element_class);
3902 mini_reset_cast_details (cfg);
3905 NEW_BIALU_IMM (cfg, add, OP_ADD_IMM, alloc_dreg (cfg, STACK_MP), obj_reg, sizeof (MonoObject));
3906 MONO_ADD_INS (cfg->cbb, add);
3907 add->type = STACK_MP;
3914 handle_unbox_gsharedvt (MonoCompile *cfg, MonoClass *klass, MonoInst *obj)
3916 MonoInst *addr, *klass_inst, *is_ref, *args[16];
3917 MonoBasicBlock *is_ref_bb, *is_nullable_bb, *end_bb;
3921 klass_inst = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_KLASS);
3927 args [1] = klass_inst;
3930 obj = mono_emit_jit_icall (cfg, mono_object_castclass_unbox, args);
3932 NEW_BBLOCK (cfg, is_ref_bb);
3933 NEW_BBLOCK (cfg, is_nullable_bb);
3934 NEW_BBLOCK (cfg, end_bb);
3935 is_ref = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_CLASS_BOX_TYPE);
3936 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, is_ref->dreg, MONO_GSHAREDVT_BOX_TYPE_REF);
3937 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBEQ, is_ref_bb);
3939 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, is_ref->dreg, MONO_GSHAREDVT_BOX_TYPE_NULLABLE);
3940 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBEQ, is_nullable_bb);
3942 /* This will contain either the address of the unboxed vtype, or an address of the temporary where the ref is stored */
3943 addr_reg = alloc_dreg (cfg, STACK_MP);
3947 NEW_BIALU_IMM (cfg, addr, OP_ADD_IMM, addr_reg, obj->dreg, sizeof (MonoObject));
3948 MONO_ADD_INS (cfg->cbb, addr);
3950 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
3953 MONO_START_BB (cfg, is_ref_bb);
3955 /* Save the ref to a temporary */
3956 dreg = alloc_ireg (cfg);
3957 EMIT_NEW_VARLOADA_VREG (cfg, addr, dreg, &klass->byval_arg);
3958 addr->dreg = addr_reg;
3959 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, addr->dreg, 0, obj->dreg);
3960 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
3963 MONO_START_BB (cfg, is_nullable_bb);
3966 MonoInst *addr = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_NULLABLE_CLASS_UNBOX);
3967 MonoInst *unbox_call;
3968 MonoMethodSignature *unbox_sig;
3970 unbox_sig = (MonoMethodSignature *)mono_mempool_alloc0 (cfg->mempool, MONO_SIZEOF_METHOD_SIGNATURE + (1 * sizeof (MonoType *)));
3971 unbox_sig->ret = &klass->byval_arg;
3972 unbox_sig->param_count = 1;
3973 unbox_sig->params [0] = &mono_defaults.object_class->byval_arg;
3976 unbox_call = emit_llvmonly_calli (cfg, unbox_sig, &obj, addr);
3978 unbox_call = mono_emit_calli (cfg, unbox_sig, &obj, addr, NULL, NULL);
3980 EMIT_NEW_VARLOADA_VREG (cfg, addr, unbox_call->dreg, &klass->byval_arg);
3981 addr->dreg = addr_reg;
3984 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
3987 MONO_START_BB (cfg, end_bb);
3990 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, addr_reg, 0);
3996 * Returns NULL and set the cfg exception on error.
3999 handle_alloc (MonoCompile *cfg, MonoClass *klass, gboolean for_box, int context_used)
4001 MonoInst *iargs [2];
4006 MonoRgctxInfoType rgctx_info;
4007 MonoInst *iargs [2];
4008 gboolean known_instance_size = !mini_is_gsharedvt_klass (klass);
4010 MonoMethod *managed_alloc = mono_gc_get_managed_allocator (klass, for_box, known_instance_size);
4012 if (cfg->opt & MONO_OPT_SHARED)
4013 rgctx_info = MONO_RGCTX_INFO_KLASS;
4015 rgctx_info = MONO_RGCTX_INFO_VTABLE;
4016 data = mini_emit_get_rgctx_klass (cfg, context_used, klass, rgctx_info);
4018 if (cfg->opt & MONO_OPT_SHARED) {
4019 EMIT_NEW_DOMAINCONST (cfg, iargs [0]);
4021 alloc_ftn = ves_icall_object_new;
4024 alloc_ftn = ves_icall_object_new_specific;
4027 if (managed_alloc && !(cfg->opt & MONO_OPT_SHARED)) {
4028 if (known_instance_size) {
4029 int size = mono_class_instance_size (klass);
4030 if (size < sizeof (MonoObject))
4031 g_error ("Invalid size %d for class %s", size, mono_type_get_full_name (klass));
4033 EMIT_NEW_ICONST (cfg, iargs [1], size);
4035 return mono_emit_method_call (cfg, managed_alloc, iargs, NULL);
4038 return mono_emit_jit_icall (cfg, alloc_ftn, iargs);
4041 if (cfg->opt & MONO_OPT_SHARED) {
4042 EMIT_NEW_DOMAINCONST (cfg, iargs [0]);
4043 EMIT_NEW_CLASSCONST (cfg, iargs [1], klass);
4045 alloc_ftn = ves_icall_object_new;
4046 } else if (cfg->compile_aot && cfg->cbb->out_of_line && klass->type_token && klass->image == mono_defaults.corlib && !mono_class_is_ginst (klass)) {
4047 /* This happens often in argument checking code, eg. throw new FooException... */
4048 /* Avoid relocations and save some space by calling a helper function specialized to mscorlib */
4049 EMIT_NEW_ICONST (cfg, iargs [0], mono_metadata_token_index (klass->type_token));
4050 return mono_emit_jit_icall (cfg, mono_helper_newobj_mscorlib, iargs);
4052 MonoVTable *vtable = mono_class_vtable (cfg->domain, klass);
4053 MonoMethod *managed_alloc = NULL;
4057 mono_cfg_set_exception (cfg, MONO_EXCEPTION_TYPE_LOAD);
4058 cfg->exception_ptr = klass;
4062 managed_alloc = mono_gc_get_managed_allocator (klass, for_box, TRUE);
4064 if (managed_alloc) {
4065 int size = mono_class_instance_size (klass);
4066 if (size < sizeof (MonoObject))
4067 g_error ("Invalid size %d for class %s", size, mono_type_get_full_name (klass));
4069 EMIT_NEW_VTABLECONST (cfg, iargs [0], vtable);
4070 EMIT_NEW_ICONST (cfg, iargs [1], size);
4071 return mono_emit_method_call (cfg, managed_alloc, iargs, NULL);
4073 alloc_ftn = mono_class_get_allocation_ftn (vtable, for_box, &pass_lw);
4075 guint32 lw = vtable->klass->instance_size;
4076 lw = ((lw + (sizeof (gpointer) - 1)) & ~(sizeof (gpointer) - 1)) / sizeof (gpointer);
4077 EMIT_NEW_ICONST (cfg, iargs [0], lw);
4078 EMIT_NEW_VTABLECONST (cfg, iargs [1], vtable);
4081 EMIT_NEW_VTABLECONST (cfg, iargs [0], vtable);
4085 return mono_emit_jit_icall (cfg, alloc_ftn, iargs);
4089 * Returns NULL and set the cfg exception on error.
4092 handle_box (MonoCompile *cfg, MonoInst *val, MonoClass *klass, int context_used)
4094 MonoInst *alloc, *ins;
4096 if (mono_class_is_nullable (klass)) {
4097 MonoMethod* method = mono_class_get_method_from_name (klass, "Box", 1);
4100 if (cfg->llvm_only && cfg->gsharedvt) {
4101 MonoInst *addr = emit_get_rgctx_method (cfg, context_used, method,
4102 MONO_RGCTX_INFO_GENERIC_METHOD_CODE);
4103 return emit_llvmonly_calli (cfg, mono_method_signature (method), &val, addr);
4105 /* FIXME: What if the class is shared? We might not
4106 have to get the method address from the RGCTX. */
4107 MonoInst *addr = emit_get_rgctx_method (cfg, context_used, method,
4108 MONO_RGCTX_INFO_GENERIC_METHOD_CODE);
4109 MonoInst *rgctx = emit_get_rgctx (cfg, cfg->method, context_used);
4111 return mono_emit_calli (cfg, mono_method_signature (method), &val, addr, NULL, rgctx);
4114 gboolean pass_vtable, pass_mrgctx;
4115 MonoInst *rgctx_arg = NULL;
4117 check_method_sharing (cfg, method, &pass_vtable, &pass_mrgctx);
4118 g_assert (!pass_mrgctx);
4121 MonoVTable *vtable = mono_class_vtable (cfg->domain, method->klass);
4124 EMIT_NEW_VTABLECONST (cfg, rgctx_arg, vtable);
4127 return mono_emit_method_call_full (cfg, method, NULL, FALSE, &val, NULL, NULL, rgctx_arg);
4131 if (mini_is_gsharedvt_klass (klass)) {
4132 MonoBasicBlock *is_ref_bb, *is_nullable_bb, *end_bb;
4133 MonoInst *res, *is_ref, *src_var, *addr;
4136 dreg = alloc_ireg (cfg);
4138 NEW_BBLOCK (cfg, is_ref_bb);
4139 NEW_BBLOCK (cfg, is_nullable_bb);
4140 NEW_BBLOCK (cfg, end_bb);
4141 is_ref = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_CLASS_BOX_TYPE);
4142 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, is_ref->dreg, MONO_GSHAREDVT_BOX_TYPE_REF);
4143 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBEQ, is_ref_bb);
4145 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, is_ref->dreg, MONO_GSHAREDVT_BOX_TYPE_NULLABLE);
4146 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBEQ, is_nullable_bb);
4149 alloc = handle_alloc (cfg, klass, TRUE, context_used);
4152 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, alloc->dreg, sizeof (MonoObject), val->dreg);
4153 ins->opcode = OP_STOREV_MEMBASE;
4155 EMIT_NEW_UNALU (cfg, res, OP_MOVE, dreg, alloc->dreg);
4156 res->type = STACK_OBJ;
4158 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
4161 MONO_START_BB (cfg, is_ref_bb);
4163 /* val is a vtype, so has to load the value manually */
4164 src_var = get_vreg_to_inst (cfg, val->dreg);
4166 src_var = mono_compile_create_var_for_vreg (cfg, &klass->byval_arg, OP_LOCAL, val->dreg);
4167 EMIT_NEW_VARLOADA (cfg, addr, src_var, src_var->inst_vtype);
4168 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, dreg, addr->dreg, 0);
4169 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
4172 MONO_START_BB (cfg, is_nullable_bb);
4175 MonoInst *addr = emit_get_gsharedvt_info_klass (cfg, klass,
4176 MONO_RGCTX_INFO_NULLABLE_CLASS_BOX);
4178 MonoMethodSignature *box_sig;
4181 * klass is Nullable<T>, need to call Nullable<T>.Box () using a gsharedvt signature, but we cannot
4182 * construct that method at JIT time, so have to do things by hand.
4184 box_sig = (MonoMethodSignature *)mono_mempool_alloc0 (cfg->mempool, MONO_SIZEOF_METHOD_SIGNATURE + (1 * sizeof (MonoType *)));
4185 box_sig->ret = &mono_defaults.object_class->byval_arg;
4186 box_sig->param_count = 1;
4187 box_sig->params [0] = &klass->byval_arg;
4190 box_call = emit_llvmonly_calli (cfg, box_sig, &val, addr);
4192 box_call = mono_emit_calli (cfg, box_sig, &val, addr, NULL, NULL);
4193 EMIT_NEW_UNALU (cfg, res, OP_MOVE, dreg, box_call->dreg);
4194 res->type = STACK_OBJ;
4198 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
4200 MONO_START_BB (cfg, end_bb);
4204 alloc = handle_alloc (cfg, klass, TRUE, context_used);
4208 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, alloc->dreg, sizeof (MonoObject), val->dreg);
4213 static GHashTable* direct_icall_type_hash;
4216 icall_is_direct_callable (MonoCompile *cfg, MonoMethod *cmethod)
4218 /* LLVM on amd64 can't handle calls to non-32 bit addresses */
4219 if (!direct_icalls_enabled (cfg))
4223 * An icall is directly callable if it doesn't directly or indirectly call mono_raise_exception ().
4224 * Whitelist a few icalls for now.
4226 if (!direct_icall_type_hash) {
4227 GHashTable *h = g_hash_table_new (g_str_hash, g_str_equal);
4229 g_hash_table_insert (h, (char*)"Decimal", GUINT_TO_POINTER (1));
4230 g_hash_table_insert (h, (char*)"Number", GUINT_TO_POINTER (1));
4231 g_hash_table_insert (h, (char*)"Buffer", GUINT_TO_POINTER (1));
4232 g_hash_table_insert (h, (char*)"Monitor", GUINT_TO_POINTER (1));
4233 mono_memory_barrier ();
4234 direct_icall_type_hash = h;
4237 if (cmethod->klass == mono_defaults.math_class)
4239 /* No locking needed */
4240 if (cmethod->klass->image == mono_defaults.corlib && g_hash_table_lookup (direct_icall_type_hash, cmethod->klass->name))
4246 method_needs_stack_walk (MonoCompile *cfg, MonoMethod *cmethod)
4248 if (cmethod->klass == mono_defaults.systemtype_class) {
4249 if (!strcmp (cmethod->name, "GetType"))
4255 static G_GNUC_UNUSED MonoInst*
4256 handle_enum_has_flag (MonoCompile *cfg, MonoClass *klass, MonoInst *enum_this, MonoInst *enum_flag)
4258 MonoType *enum_type = mono_type_get_underlying_type (&klass->byval_arg);
4259 guint32 load_opc = mono_type_to_load_membase (cfg, enum_type);
4262 switch (enum_type->type) {
4265 #if SIZEOF_REGISTER == 8
4277 MonoInst *load, *and_, *cmp, *ceq;
4278 int enum_reg = is_i4 ? alloc_ireg (cfg) : alloc_lreg (cfg);
4279 int and_reg = is_i4 ? alloc_ireg (cfg) : alloc_lreg (cfg);
4280 int dest_reg = alloc_ireg (cfg);
4282 EMIT_NEW_LOAD_MEMBASE (cfg, load, load_opc, enum_reg, enum_this->dreg, 0);
4283 EMIT_NEW_BIALU (cfg, and_, is_i4 ? OP_IAND : OP_LAND, and_reg, enum_reg, enum_flag->dreg);
4284 EMIT_NEW_BIALU (cfg, cmp, is_i4 ? OP_ICOMPARE : OP_LCOMPARE, -1, and_reg, enum_flag->dreg);
4285 EMIT_NEW_UNALU (cfg, ceq, is_i4 ? OP_ICEQ : OP_LCEQ, dest_reg, -1);
4287 ceq->type = STACK_I4;
4290 load = mono_decompose_opcode (cfg, load);
4291 and_ = mono_decompose_opcode (cfg, and_);
4292 cmp = mono_decompose_opcode (cfg, cmp);
4293 ceq = mono_decompose_opcode (cfg, ceq);
4301 * Returns NULL and set the cfg exception on error.
4303 static G_GNUC_UNUSED MonoInst*
4304 handle_delegate_ctor (MonoCompile *cfg, MonoClass *klass, MonoInst *target, MonoMethod *method, int context_used, gboolean virtual_)
4308 gpointer trampoline;
4309 MonoInst *obj, *method_ins, *tramp_ins;
4313 if (virtual_ && !cfg->llvm_only) {
4314 MonoMethod *invoke = mono_get_delegate_invoke (klass);
4317 if (!mono_get_delegate_virtual_invoke_impl (mono_method_signature (invoke), context_used ? NULL : method))
4321 obj = handle_alloc (cfg, klass, FALSE, mono_class_check_context_used (klass));
4325 /* Inline the contents of mono_delegate_ctor */
4327 /* Set target field */
4328 /* Optimize away setting of NULL target */
4329 if (!MONO_INS_IS_PCONST_NULL (target)) {
4330 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, target), target->dreg);
4331 if (cfg->gen_write_barriers) {
4332 dreg = alloc_preg (cfg);
4333 EMIT_NEW_BIALU_IMM (cfg, ptr, OP_PADD_IMM, dreg, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, target));
4334 emit_write_barrier (cfg, ptr, target);
4338 /* Set method field */
4339 method_ins = emit_get_rgctx_method (cfg, context_used, method, MONO_RGCTX_INFO_METHOD);
4340 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, method), method_ins->dreg);
4343 * To avoid looking up the compiled code belonging to the target method
4344 * in mono_delegate_trampoline (), we allocate a per-domain memory slot to
4345 * store it, and we fill it after the method has been compiled.
4347 if (!method->dynamic && !(cfg->opt & MONO_OPT_SHARED)) {
4348 MonoInst *code_slot_ins;
4351 code_slot_ins = emit_get_rgctx_method (cfg, context_used, method, MONO_RGCTX_INFO_METHOD_DELEGATE_CODE);
4353 domain = mono_domain_get ();
4354 mono_domain_lock (domain);
4355 if (!domain_jit_info (domain)->method_code_hash)
4356 domain_jit_info (domain)->method_code_hash = g_hash_table_new (NULL, NULL);
4357 code_slot = (guint8 **)g_hash_table_lookup (domain_jit_info (domain)->method_code_hash, method);
4359 code_slot = (guint8 **)mono_domain_alloc0 (domain, sizeof (gpointer));
4360 g_hash_table_insert (domain_jit_info (domain)->method_code_hash, method, code_slot);
4362 mono_domain_unlock (domain);
4364 code_slot_ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_METHOD_CODE_SLOT, method);
4366 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, method_code), code_slot_ins->dreg);
4369 if (cfg->llvm_only) {
4370 MonoInst *args [16];
4375 args [2] = emit_get_rgctx_method (cfg, context_used, method, MONO_RGCTX_INFO_METHOD);
4376 mono_emit_jit_icall (cfg, mono_llvmonly_init_delegate_virtual, args);
4379 mono_emit_jit_icall (cfg, mono_llvmonly_init_delegate, args);
4385 if (cfg->compile_aot) {
4386 MonoDelegateClassMethodPair *del_tramp;
4388 del_tramp = (MonoDelegateClassMethodPair *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoDelegateClassMethodPair));
4389 del_tramp->klass = klass;
4390 del_tramp->method = context_used ? NULL : method;
4391 del_tramp->is_virtual = virtual_;
4392 EMIT_NEW_AOTCONST (cfg, tramp_ins, MONO_PATCH_INFO_DELEGATE_TRAMPOLINE, del_tramp);
4395 trampoline = mono_create_delegate_virtual_trampoline (cfg->domain, klass, context_used ? NULL : method);
4397 trampoline = mono_create_delegate_trampoline_info (cfg->domain, klass, context_used ? NULL : method);
4398 EMIT_NEW_PCONST (cfg, tramp_ins, trampoline);
4401 /* Set invoke_impl field */
4403 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, invoke_impl), tramp_ins->dreg);
4405 dreg = alloc_preg (cfg);
4406 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, dreg, tramp_ins->dreg, MONO_STRUCT_OFFSET (MonoDelegateTrampInfo, invoke_impl));
4407 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, invoke_impl), dreg);
4409 dreg = alloc_preg (cfg);
4410 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, dreg, tramp_ins->dreg, MONO_STRUCT_OFFSET (MonoDelegateTrampInfo, method_ptr));
4411 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, method_ptr), dreg);
4414 dreg = alloc_preg (cfg);
4415 MONO_EMIT_NEW_ICONST (cfg, dreg, virtual_ ? 1 : 0);
4416 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI1_MEMBASE_REG, obj->dreg, MONO_STRUCT_OFFSET (MonoDelegate, method_is_virtual), dreg);
4418 /* All the checks which are in mono_delegate_ctor () are done by the delegate trampoline */
4424 handle_array_new (MonoCompile *cfg, int rank, MonoInst **sp, unsigned char *ip)
4426 MonoJitICallInfo *info;
4428 /* Need to register the icall so it gets an icall wrapper */
4429 info = mono_get_array_new_va_icall (rank);
4431 cfg->flags |= MONO_CFG_HAS_VARARGS;
4433 /* mono_array_new_va () needs a vararg calling convention */
4434 cfg->exception_message = g_strdup ("array-new");
4435 cfg->disable_llvm = TRUE;
4437 /* FIXME: This uses info->sig, but it should use the signature of the wrapper */
4438 return mono_emit_native_call (cfg, mono_icall_get_wrapper (info), info->sig, sp);
4442 * handle_constrained_gsharedvt_call:
4444 * Handle constrained calls where the receiver is a gsharedvt type.
4445 * Return the instruction representing the call. Set the cfg exception on failure.
4448 handle_constrained_gsharedvt_call (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **sp, MonoClass *constrained_class,
4449 gboolean *ref_emit_widen)
4451 MonoInst *ins = NULL;
4452 gboolean emit_widen = *ref_emit_widen;
4455 * Constrained calls need to behave differently at runtime dependending on whenever the receiver is instantiated as ref type or as a vtype.
4456 * This is hard to do with the current call code, since we would have to emit a branch and two different calls. So instead, we
4457 * pack the arguments into an array, and do the rest of the work in in an icall.
4459 if (((cmethod->klass == mono_defaults.object_class) || mono_class_is_interface (cmethod->klass) || (!cmethod->klass->valuetype && cmethod->klass->image != mono_defaults.corlib)) &&
4460 (MONO_TYPE_IS_VOID (fsig->ret) || MONO_TYPE_IS_PRIMITIVE (fsig->ret) || MONO_TYPE_IS_REFERENCE (fsig->ret) || MONO_TYPE_ISSTRUCT (fsig->ret) || mini_is_gsharedvt_type (fsig->ret)) &&
4461 (fsig->param_count == 0 || (!fsig->hasthis && fsig->param_count == 1) || (fsig->param_count == 1 && (MONO_TYPE_IS_REFERENCE (fsig->params [0]) || fsig->params [0]->byref || mini_is_gsharedvt_type (fsig->params [0]))))) {
4462 MonoInst *args [16];
4465 * This case handles calls to
4466 * - object:ToString()/Equals()/GetHashCode(),
4467 * - System.IComparable<T>:CompareTo()
4468 * - System.IEquatable<T>:Equals ()
4469 * plus some simple interface calls enough to support AsyncTaskMethodBuilder.
4473 if (mono_method_check_context_used (cmethod))
4474 args [1] = emit_get_rgctx_method (cfg, mono_method_check_context_used (cmethod), cmethod, MONO_RGCTX_INFO_METHOD);
4476 EMIT_NEW_METHODCONST (cfg, args [1], cmethod);
4477 args [2] = mini_emit_get_rgctx_klass (cfg, mono_class_check_context_used (constrained_class), constrained_class, MONO_RGCTX_INFO_KLASS);
4479 /* !fsig->hasthis is for the wrapper for the Object.GetType () icall */
4480 if (fsig->hasthis && fsig->param_count) {
4481 /* Pass the arguments using a localloc-ed array using the format expected by runtime_invoke () */
4482 MONO_INST_NEW (cfg, ins, OP_LOCALLOC_IMM);
4483 ins->dreg = alloc_preg (cfg);
4484 ins->inst_imm = fsig->param_count * sizeof (mgreg_t);
4485 MONO_ADD_INS (cfg->cbb, ins);
4488 if (mini_is_gsharedvt_type (fsig->params [0])) {
4489 int addr_reg, deref_arg_reg;
4491 ins = emit_get_gsharedvt_info_klass (cfg, mono_class_from_mono_type (fsig->params [0]), MONO_RGCTX_INFO_CLASS_BOX_TYPE);
4492 deref_arg_reg = alloc_preg (cfg);
4493 /* deref_arg = BOX_TYPE != MONO_GSHAREDVT_BOX_TYPE_VTYPE */
4494 EMIT_NEW_BIALU_IMM (cfg, args [3], OP_ISUB_IMM, deref_arg_reg, ins->dreg, 1);
4496 EMIT_NEW_VARLOADA_VREG (cfg, ins, sp [1]->dreg, fsig->params [0]);
4497 addr_reg = ins->dreg;
4498 EMIT_NEW_STORE_MEMBASE (cfg, ins, OP_STORE_MEMBASE_REG, args [4]->dreg, 0, addr_reg);
4500 EMIT_NEW_ICONST (cfg, args [3], 0);
4501 EMIT_NEW_STORE_MEMBASE (cfg, ins, OP_STORE_MEMBASE_REG, args [4]->dreg, 0, sp [1]->dreg);
4504 EMIT_NEW_ICONST (cfg, args [3], 0);
4505 EMIT_NEW_ICONST (cfg, args [4], 0);
4507 ins = mono_emit_jit_icall (cfg, mono_gsharedvt_constrained_call, args);
4510 if (mini_is_gsharedvt_type (fsig->ret)) {
4511 ins = handle_unbox_gsharedvt (cfg, mono_class_from_mono_type (fsig->ret), ins);
4512 } else if (MONO_TYPE_IS_PRIMITIVE (fsig->ret) || MONO_TYPE_ISSTRUCT (fsig->ret)) {
4516 NEW_BIALU_IMM (cfg, add, OP_ADD_IMM, alloc_dreg (cfg, STACK_MP), ins->dreg, sizeof (MonoObject));
4517 MONO_ADD_INS (cfg->cbb, add);
4519 NEW_LOAD_MEMBASE_TYPE (cfg, ins, fsig->ret, add->dreg, 0);
4520 MONO_ADD_INS (cfg->cbb, ins);
4521 /* ins represents the call result */
4524 GSHAREDVT_FAILURE (CEE_CALLVIRT);
4527 *ref_emit_widen = emit_widen;
4536 mono_emit_load_got_addr (MonoCompile *cfg)
4538 MonoInst *getaddr, *dummy_use;
4540 if (!cfg->got_var || cfg->got_var_allocated)
4543 MONO_INST_NEW (cfg, getaddr, OP_LOAD_GOTADDR);
4544 getaddr->cil_code = cfg->header->code;
4545 getaddr->dreg = cfg->got_var->dreg;
4547 /* Add it to the start of the first bblock */
4548 if (cfg->bb_entry->code) {
4549 getaddr->next = cfg->bb_entry->code;
4550 cfg->bb_entry->code = getaddr;
4553 MONO_ADD_INS (cfg->bb_entry, getaddr);
4555 cfg->got_var_allocated = TRUE;
4558 * Add a dummy use to keep the got_var alive, since real uses might
4559 * only be generated by the back ends.
4560 * Add it to end_bblock, so the variable's lifetime covers the whole
4562 * It would be better to make the usage of the got var explicit in all
4563 * cases when the backend needs it (i.e. calls, throw etc.), so this
4564 * wouldn't be needed.
4566 NEW_DUMMY_USE (cfg, dummy_use, cfg->got_var);
4567 MONO_ADD_INS (cfg->bb_exit, dummy_use);
4570 static int inline_limit;
4571 static gboolean inline_limit_inited;
4574 mono_method_check_inlining (MonoCompile *cfg, MonoMethod *method)
4576 MonoMethodHeaderSummary header;
4578 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
4579 MonoMethodSignature *sig = mono_method_signature (method);
4583 if (cfg->disable_inline)
4588 if (cfg->inline_depth > 10)
4591 if (!mono_method_get_header_summary (method, &header))
4594 /*runtime, icall and pinvoke are checked by summary call*/
4595 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_NOINLINING) ||
4596 (method->iflags & METHOD_IMPL_ATTRIBUTE_SYNCHRONIZED) ||
4597 (mono_class_is_marshalbyref (method->klass)) ||
4601 /* also consider num_locals? */
4602 /* Do the size check early to avoid creating vtables */
4603 if (!inline_limit_inited) {
4604 if (g_getenv ("MONO_INLINELIMIT"))
4605 inline_limit = atoi (g_getenv ("MONO_INLINELIMIT"));
4607 inline_limit = INLINE_LENGTH_LIMIT;
4608 inline_limit_inited = TRUE;
4610 if (header.code_size >= inline_limit && !(method->iflags & METHOD_IMPL_ATTRIBUTE_AGGRESSIVE_INLINING))
4614 * if we can initialize the class of the method right away, we do,
4615 * otherwise we don't allow inlining if the class needs initialization,
4616 * since it would mean inserting a call to mono_runtime_class_init()
4617 * inside the inlined code
4619 if (cfg->gshared && method->klass->has_cctor && mini_class_check_context_used (cfg, method->klass))
4622 if (!(cfg->opt & MONO_OPT_SHARED)) {
4623 /* The AggressiveInlining hint is a good excuse to force that cctor to run. */
4624 if (method->iflags & METHOD_IMPL_ATTRIBUTE_AGGRESSIVE_INLINING) {
4625 if (method->klass->has_cctor) {
4626 vtable = mono_class_vtable (cfg->domain, method->klass);
4629 if (!cfg->compile_aot) {
4631 if (!mono_runtime_class_init_full (vtable, &error)) {
4632 mono_error_cleanup (&error);
4637 } else if (mono_class_is_before_field_init (method->klass)) {
4638 if (cfg->run_cctors && method->klass->has_cctor) {
4639 /*FIXME it would easier and lazier to just use mono_class_try_get_vtable */
4640 if (!method->klass->runtime_info)
4641 /* No vtable created yet */
4643 vtable = mono_class_vtable (cfg->domain, method->klass);
4646 /* This makes so that inline cannot trigger */
4647 /* .cctors: too many apps depend on them */
4648 /* running with a specific order... */
4649 if (! vtable->initialized)
4652 if (!mono_runtime_class_init_full (vtable, &error)) {
4653 mono_error_cleanup (&error);
4657 } else if (mono_class_needs_cctor_run (method->klass, NULL)) {
4658 if (!method->klass->runtime_info)
4659 /* No vtable created yet */
4661 vtable = mono_class_vtable (cfg->domain, method->klass);
4664 if (!vtable->initialized)
4669 * If we're compiling for shared code
4670 * the cctor will need to be run at aot method load time, for example,
4671 * or at the end of the compilation of the inlining method.
4673 if (mono_class_needs_cctor_run (method->klass, NULL) && !mono_class_is_before_field_init (method->klass))
4677 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
4678 if (mono_arch_is_soft_float ()) {
4680 if (sig->ret && sig->ret->type == MONO_TYPE_R4)
4682 for (i = 0; i < sig->param_count; ++i)
4683 if (!sig->params [i]->byref && sig->params [i]->type == MONO_TYPE_R4)
4688 if (g_list_find (cfg->dont_inline, method))
4695 mini_field_access_needs_cctor_run (MonoCompile *cfg, MonoMethod *method, MonoClass *klass, MonoVTable *vtable)
4697 if (!cfg->compile_aot) {
4699 if (vtable->initialized)
4703 if (mono_class_is_before_field_init (klass)) {
4704 if (cfg->method == method)
4708 if (!mono_class_needs_cctor_run (klass, method))
4711 if (! (method->flags & METHOD_ATTRIBUTE_STATIC) && (klass == method->klass))
4712 /* The initialization is already done before the method is called */
4719 mini_emit_ldelema_1_ins (MonoCompile *cfg, MonoClass *klass, MonoInst *arr, MonoInst *index, gboolean bcheck)
4723 int mult_reg, add_reg, array_reg, index_reg, index2_reg;
4726 if (mini_is_gsharedvt_variable_klass (klass)) {
4729 mono_class_init (klass);
4730 size = mono_class_array_element_size (klass);
4733 mult_reg = alloc_preg (cfg);
4734 array_reg = arr->dreg;
4735 index_reg = index->dreg;
4737 #if SIZEOF_REGISTER == 8
4738 /* The array reg is 64 bits but the index reg is only 32 */
4739 if (COMPILE_LLVM (cfg)) {
4741 index2_reg = index_reg;
4743 index2_reg = alloc_preg (cfg);
4744 MONO_EMIT_NEW_UNALU (cfg, OP_SEXT_I4, index2_reg, index_reg);
4747 if (index->type == STACK_I8) {
4748 index2_reg = alloc_preg (cfg);
4749 MONO_EMIT_NEW_UNALU (cfg, OP_LCONV_TO_I4, index2_reg, index_reg);
4751 index2_reg = index_reg;
4756 MONO_EMIT_BOUNDS_CHECK (cfg, array_reg, MonoArray, max_length, index2_reg);
4758 #if defined(TARGET_X86) || defined(TARGET_AMD64)
4759 if (size == 1 || size == 2 || size == 4 || size == 8) {
4760 static const int fast_log2 [] = { 1, 0, 1, -1, 2, -1, -1, -1, 3 };
4762 EMIT_NEW_X86_LEA (cfg, ins, array_reg, index2_reg, fast_log2 [size], MONO_STRUCT_OFFSET (MonoArray, vector));
4763 ins->klass = mono_class_get_element_class (klass);
4764 ins->type = STACK_MP;
4770 add_reg = alloc_ireg_mp (cfg);
4773 MonoInst *rgctx_ins;
4776 g_assert (cfg->gshared);
4777 context_used = mini_class_check_context_used (cfg, klass);
4778 g_assert (context_used);
4779 rgctx_ins = emit_get_gsharedvt_info_klass (cfg, klass, MONO_RGCTX_INFO_ARRAY_ELEMENT_SIZE);
4780 MONO_EMIT_NEW_BIALU (cfg, OP_IMUL, mult_reg, index2_reg, rgctx_ins->dreg);
4782 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_MUL_IMM, mult_reg, index2_reg, size);
4784 MONO_EMIT_NEW_BIALU (cfg, OP_PADD, add_reg, array_reg, mult_reg);
4785 NEW_BIALU_IMM (cfg, ins, OP_PADD_IMM, add_reg, add_reg, MONO_STRUCT_OFFSET (MonoArray, vector));
4786 ins->klass = mono_class_get_element_class (klass);
4787 ins->type = STACK_MP;
4788 MONO_ADD_INS (cfg->cbb, ins);
4794 mini_emit_ldelema_2_ins (MonoCompile *cfg, MonoClass *klass, MonoInst *arr, MonoInst *index_ins1, MonoInst *index_ins2)
4796 int bounds_reg = alloc_preg (cfg);
4797 int add_reg = alloc_ireg_mp (cfg);
4798 int mult_reg = alloc_preg (cfg);
4799 int mult2_reg = alloc_preg (cfg);
4800 int low1_reg = alloc_preg (cfg);
4801 int low2_reg = alloc_preg (cfg);
4802 int high1_reg = alloc_preg (cfg);
4803 int high2_reg = alloc_preg (cfg);
4804 int realidx1_reg = alloc_preg (cfg);
4805 int realidx2_reg = alloc_preg (cfg);
4806 int sum_reg = alloc_preg (cfg);
4807 int index1, index2, tmpreg;
4811 mono_class_init (klass);
4812 size = mono_class_array_element_size (klass);
4814 index1 = index_ins1->dreg;
4815 index2 = index_ins2->dreg;
4817 #if SIZEOF_REGISTER == 8
4818 /* The array reg is 64 bits but the index reg is only 32 */
4819 if (COMPILE_LLVM (cfg)) {
4822 tmpreg = alloc_preg (cfg);
4823 MONO_EMIT_NEW_UNALU (cfg, OP_SEXT_I4, tmpreg, index1);
4825 tmpreg = alloc_preg (cfg);
4826 MONO_EMIT_NEW_UNALU (cfg, OP_SEXT_I4, tmpreg, index2);
4830 // FIXME: Do we need to do something here for i8 indexes, like in ldelema_1_ins ?
4834 /* range checking */
4835 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, bounds_reg,
4836 arr->dreg, MONO_STRUCT_OFFSET (MonoArray, bounds));
4838 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, low1_reg,
4839 bounds_reg, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
4840 MONO_EMIT_NEW_BIALU (cfg, OP_PSUB, realidx1_reg, index1, low1_reg);
4841 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, high1_reg,
4842 bounds_reg, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
4843 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, high1_reg, realidx1_reg);
4844 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException");
4846 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, low2_reg,
4847 bounds_reg, sizeof (MonoArrayBounds) + MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
4848 MONO_EMIT_NEW_BIALU (cfg, OP_PSUB, realidx2_reg, index2, low2_reg);
4849 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, high2_reg,
4850 bounds_reg, sizeof (MonoArrayBounds) + MONO_STRUCT_OFFSET (MonoArrayBounds, length));
4851 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, high2_reg, realidx2_reg);
4852 MONO_EMIT_NEW_COND_EXC (cfg, LE_UN, "IndexOutOfRangeException");
4854 MONO_EMIT_NEW_BIALU (cfg, OP_PMUL, mult_reg, high2_reg, realidx1_reg);
4855 MONO_EMIT_NEW_BIALU (cfg, OP_PADD, sum_reg, mult_reg, realidx2_reg);
4856 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_PMUL_IMM, mult2_reg, sum_reg, size);
4857 MONO_EMIT_NEW_BIALU (cfg, OP_PADD, add_reg, mult2_reg, arr->dreg);
4858 NEW_BIALU_IMM (cfg, ins, OP_PADD_IMM, add_reg, add_reg, MONO_STRUCT_OFFSET (MonoArray, vector));
4860 ins->type = STACK_MP;
4862 MONO_ADD_INS (cfg->cbb, ins);
4868 mini_emit_ldelema_ins (MonoCompile *cfg, MonoMethod *cmethod, MonoInst **sp, unsigned char *ip, gboolean is_set)
4872 MonoMethod *addr_method;
4874 MonoClass *eclass = cmethod->klass->element_class;
4876 rank = mono_method_signature (cmethod)->param_count - (is_set? 1: 0);
4879 return mini_emit_ldelema_1_ins (cfg, eclass, sp [0], sp [1], TRUE);
4881 /* emit_ldelema_2 depends on OP_LMUL */
4882 if (!cfg->backend->emulate_mul_div && rank == 2 && (cfg->opt & MONO_OPT_INTRINS) && !mini_is_gsharedvt_variable_klass (eclass)) {
4883 return mini_emit_ldelema_2_ins (cfg, eclass, sp [0], sp [1], sp [2]);
4886 if (mini_is_gsharedvt_variable_klass (eclass))
4889 element_size = mono_class_array_element_size (eclass);
4890 addr_method = mono_marshal_get_array_address (rank, element_size);
4891 addr = mono_emit_method_call (cfg, addr_method, sp, NULL);
4896 static MonoBreakPolicy
4897 always_insert_breakpoint (MonoMethod *method)
4899 return MONO_BREAK_POLICY_ALWAYS;
4902 static MonoBreakPolicyFunc break_policy_func = always_insert_breakpoint;
4905 * mono_set_break_policy:
4906 * policy_callback: the new callback function
4908 * Allow embedders to decide wherther to actually obey breakpoint instructions
4909 * (both break IL instructions and Debugger.Break () method calls), for example
4910 * to not allow an app to be aborted by a perfectly valid IL opcode when executing
4911 * untrusted or semi-trusted code.
4913 * @policy_callback will be called every time a break point instruction needs to
4914 * be inserted with the method argument being the method that calls Debugger.Break()
4915 * or has the IL break instruction. The callback should return #MONO_BREAK_POLICY_NEVER
4916 * if it wants the breakpoint to not be effective in the given method.
4917 * #MONO_BREAK_POLICY_ALWAYS is the default.
4920 mono_set_break_policy (MonoBreakPolicyFunc policy_callback)
4922 if (policy_callback)
4923 break_policy_func = policy_callback;
4925 break_policy_func = always_insert_breakpoint;
4929 should_insert_brekpoint (MonoMethod *method) {
4930 switch (break_policy_func (method)) {
4931 case MONO_BREAK_POLICY_ALWAYS:
4933 case MONO_BREAK_POLICY_NEVER:
4935 case MONO_BREAK_POLICY_ON_DBG:
4936 g_warning ("mdb no longer supported");
4939 g_warning ("Incorrect value returned from break policy callback");
4944 /* optimize the simple GetGenericValueImpl/SetGenericValueImpl generic icalls */
4946 emit_array_generic_access (MonoCompile *cfg, MonoMethodSignature *fsig, MonoInst **args, int is_set)
4948 MonoInst *addr, *store, *load;
4949 MonoClass *eklass = mono_class_from_mono_type (fsig->params [2]);
4951 /* the bounds check is already done by the callers */
4952 addr = mini_emit_ldelema_1_ins (cfg, eklass, args [0], args [1], FALSE);
4954 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, load, &eklass->byval_arg, args [2]->dreg, 0);
4955 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, store, &eklass->byval_arg, addr->dreg, 0, load->dreg);
4956 if (mini_type_is_reference (&eklass->byval_arg))
4957 emit_write_barrier (cfg, addr, load);
4959 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, load, &eklass->byval_arg, addr->dreg, 0);
4960 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, store, &eklass->byval_arg, args [2]->dreg, 0, load->dreg);
4967 generic_class_is_reference_type (MonoCompile *cfg, MonoClass *klass)
4969 return mini_type_is_reference (&klass->byval_arg);
4973 emit_array_store (MonoCompile *cfg, MonoClass *klass, MonoInst **sp, gboolean safety_checks)
4975 if (safety_checks && generic_class_is_reference_type (cfg, klass) &&
4976 !(MONO_INS_IS_PCONST_NULL (sp [2]))) {
4977 MonoClass *obj_array = mono_array_class_get_cached (mono_defaults.object_class, 1);
4978 MonoMethod *helper = mono_marshal_get_virtual_stelemref (obj_array);
4979 MonoInst *iargs [3];
4982 mono_class_setup_vtable (obj_array);
4983 g_assert (helper->slot);
4985 if (sp [0]->type != STACK_OBJ)
4987 if (sp [2]->type != STACK_OBJ)
4994 return mono_emit_method_call (cfg, helper, iargs, sp [0]);
4998 if (mini_is_gsharedvt_variable_klass (klass)) {
5001 // FIXME-VT: OP_ICONST optimization
5002 addr = mini_emit_ldelema_1_ins (cfg, klass, sp [0], sp [1], TRUE);
5003 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, addr->dreg, 0, sp [2]->dreg);
5004 ins->opcode = OP_STOREV_MEMBASE;
5005 } else if (sp [1]->opcode == OP_ICONST) {
5006 int array_reg = sp [0]->dreg;
5007 int index_reg = sp [1]->dreg;
5008 int offset = (mono_class_array_element_size (klass) * sp [1]->inst_c0) + MONO_STRUCT_OFFSET (MonoArray, vector);
5010 if (SIZEOF_REGISTER == 8 && COMPILE_LLVM (cfg))
5011 MONO_EMIT_NEW_UNALU (cfg, OP_ZEXT_I4, index_reg, index_reg);
5014 MONO_EMIT_BOUNDS_CHECK (cfg, array_reg, MonoArray, max_length, index_reg);
5015 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, array_reg, offset, sp [2]->dreg);
5017 MonoInst *addr = mini_emit_ldelema_1_ins (cfg, klass, sp [0], sp [1], safety_checks);
5018 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, addr->dreg, 0, sp [2]->dreg);
5019 if (generic_class_is_reference_type (cfg, klass))
5020 emit_write_barrier (cfg, addr, sp [2]);
5027 emit_array_unsafe_access (MonoCompile *cfg, MonoMethodSignature *fsig, MonoInst **args, int is_set)
5032 eklass = mono_class_from_mono_type (fsig->params [2]);
5034 eklass = mono_class_from_mono_type (fsig->ret);
5037 return emit_array_store (cfg, eklass, args, FALSE);
5039 MonoInst *ins, *addr = mini_emit_ldelema_1_ins (cfg, eklass, args [0], args [1], FALSE);
5040 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &eklass->byval_arg, addr->dreg, 0);
5046 is_unsafe_mov_compatible (MonoCompile *cfg, MonoClass *param_klass, MonoClass *return_klass)
5049 int param_size, return_size;
5051 param_klass = mono_class_from_mono_type (mini_get_underlying_type (¶m_klass->byval_arg));
5052 return_klass = mono_class_from_mono_type (mini_get_underlying_type (&return_klass->byval_arg));
5054 if (cfg->verbose_level > 3)
5055 printf ("[UNSAFE-MOV-INTRISIC] %s <- %s\n", return_klass->name, param_klass->name);
5057 //Don't allow mixing reference types with value types
5058 if (param_klass->valuetype != return_klass->valuetype) {
5059 if (cfg->verbose_level > 3)
5060 printf ("[UNSAFE-MOV-INTRISIC]\tone of the args is a valuetype and the other is not\n");
5064 if (!param_klass->valuetype) {
5065 if (cfg->verbose_level > 3)
5066 printf ("[UNSAFE-MOV-INTRISIC]\targs are reference types\n");
5071 if (param_klass->has_references || return_klass->has_references)
5074 /* Avoid mixing structs and primitive types/enums, they need to be handled differently in the JIT */
5075 if ((MONO_TYPE_ISSTRUCT (¶m_klass->byval_arg) && !MONO_TYPE_ISSTRUCT (&return_klass->byval_arg)) ||
5076 (!MONO_TYPE_ISSTRUCT (¶m_klass->byval_arg) && MONO_TYPE_ISSTRUCT (&return_klass->byval_arg))) {
5077 if (cfg->verbose_level > 3)
5078 printf ("[UNSAFE-MOV-INTRISIC]\tmixing structs and scalars\n");
5082 if (param_klass->byval_arg.type == MONO_TYPE_R4 || param_klass->byval_arg.type == MONO_TYPE_R8 ||
5083 return_klass->byval_arg.type == MONO_TYPE_R4 || return_klass->byval_arg.type == MONO_TYPE_R8) {
5084 if (cfg->verbose_level > 3)
5085 printf ("[UNSAFE-MOV-INTRISIC]\tfloat or double are not supported\n");
5089 param_size = mono_class_value_size (param_klass, &align);
5090 return_size = mono_class_value_size (return_klass, &align);
5092 //We can do it if sizes match
5093 if (param_size == return_size) {
5094 if (cfg->verbose_level > 3)
5095 printf ("[UNSAFE-MOV-INTRISIC]\tsame size\n");
5099 //No simple way to handle struct if sizes don't match
5100 if (MONO_TYPE_ISSTRUCT (¶m_klass->byval_arg)) {
5101 if (cfg->verbose_level > 3)
5102 printf ("[UNSAFE-MOV-INTRISIC]\tsize mismatch and type is a struct\n");
5107 * Same reg size category.
5108 * A quick note on why we don't require widening here.
5109 * The intrinsic is "R Array.UnsafeMov<S,R> (S s)".
5111 * Since the source value comes from a function argument, the JIT will already have
5112 * the value in a VREG and performed any widening needed before (say, when loading from a field).
5114 if (param_size <= 4 && return_size <= 4) {
5115 if (cfg->verbose_level > 3)
5116 printf ("[UNSAFE-MOV-INTRISIC]\tsize mismatch but both are of the same reg class\n");
5124 emit_array_unsafe_mov (MonoCompile *cfg, MonoMethodSignature *fsig, MonoInst **args)
5126 MonoClass *param_klass = mono_class_from_mono_type (fsig->params [0]);
5127 MonoClass *return_klass = mono_class_from_mono_type (fsig->ret);
5129 if (mini_is_gsharedvt_variable_type (fsig->ret))
5132 //Valuetypes that are semantically equivalent or numbers than can be widened to
5133 if (is_unsafe_mov_compatible (cfg, param_klass, return_klass))
5136 //Arrays of valuetypes that are semantically equivalent
5137 if (param_klass->rank == 1 && return_klass->rank == 1 && is_unsafe_mov_compatible (cfg, param_klass->element_class, return_klass->element_class))
5144 mini_emit_inst_for_ctor (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5146 #ifdef MONO_ARCH_SIMD_INTRINSICS
5147 MonoInst *ins = NULL;
5149 if (cfg->opt & MONO_OPT_SIMD) {
5150 ins = mono_emit_simd_intrinsics (cfg, cmethod, fsig, args);
5156 return mono_emit_native_types_intrinsics (cfg, cmethod, fsig, args);
5160 emit_memory_barrier (MonoCompile *cfg, int kind)
5162 MonoInst *ins = NULL;
5163 MONO_INST_NEW (cfg, ins, OP_MEMORY_BARRIER);
5164 MONO_ADD_INS (cfg->cbb, ins);
5165 ins->backend.memory_barrier_kind = kind;
5171 llvm_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5173 MonoInst *ins = NULL;
5176 /* The LLVM backend supports these intrinsics */
5177 if (cmethod->klass == mono_defaults.math_class) {
5178 if (strcmp (cmethod->name, "Sin") == 0) {
5180 } else if (strcmp (cmethod->name, "Cos") == 0) {
5182 } else if (strcmp (cmethod->name, "Sqrt") == 0) {
5184 } else if (strcmp (cmethod->name, "Abs") == 0 && fsig->params [0]->type == MONO_TYPE_R8) {
5188 if (opcode && fsig->param_count == 1) {
5189 MONO_INST_NEW (cfg, ins, opcode);
5190 ins->type = STACK_R8;
5191 ins->dreg = mono_alloc_dreg (cfg, ins->type);
5192 ins->sreg1 = args [0]->dreg;
5193 MONO_ADD_INS (cfg->cbb, ins);
5197 if (cfg->opt & MONO_OPT_CMOV) {
5198 if (strcmp (cmethod->name, "Min") == 0) {
5199 if (fsig->params [0]->type == MONO_TYPE_I4)
5201 if (fsig->params [0]->type == MONO_TYPE_U4)
5202 opcode = OP_IMIN_UN;
5203 else if (fsig->params [0]->type == MONO_TYPE_I8)
5205 else if (fsig->params [0]->type == MONO_TYPE_U8)
5206 opcode = OP_LMIN_UN;
5207 } else if (strcmp (cmethod->name, "Max") == 0) {
5208 if (fsig->params [0]->type == MONO_TYPE_I4)
5210 if (fsig->params [0]->type == MONO_TYPE_U4)
5211 opcode = OP_IMAX_UN;
5212 else if (fsig->params [0]->type == MONO_TYPE_I8)
5214 else if (fsig->params [0]->type == MONO_TYPE_U8)
5215 opcode = OP_LMAX_UN;
5219 if (opcode && fsig->param_count == 2) {
5220 MONO_INST_NEW (cfg, ins, opcode);
5221 ins->type = fsig->params [0]->type == MONO_TYPE_I4 ? STACK_I4 : STACK_I8;
5222 ins->dreg = mono_alloc_dreg (cfg, ins->type);
5223 ins->sreg1 = args [0]->dreg;
5224 ins->sreg2 = args [1]->dreg;
5225 MONO_ADD_INS (cfg->cbb, ins);
5233 mini_emit_inst_for_sharable_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5235 if (cmethod->klass == mono_defaults.array_class) {
5236 if (strcmp (cmethod->name, "UnsafeStore") == 0)
5237 return emit_array_unsafe_access (cfg, fsig, args, TRUE);
5238 else if (strcmp (cmethod->name, "UnsafeLoad") == 0)
5239 return emit_array_unsafe_access (cfg, fsig, args, FALSE);
5240 else if (strcmp (cmethod->name, "UnsafeMov") == 0)
5241 return emit_array_unsafe_mov (cfg, fsig, args);
5248 mini_emit_inst_for_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **args)
5250 MonoInst *ins = NULL;
5252 MonoClass *runtime_helpers_class = mono_class_get_runtime_helpers_class ();
5254 if (cmethod->klass == mono_defaults.string_class) {
5255 if (strcmp (cmethod->name, "get_Chars") == 0 && fsig->param_count + fsig->hasthis == 2) {
5256 int dreg = alloc_ireg (cfg);
5257 int index_reg = alloc_preg (cfg);
5258 int add_reg = alloc_preg (cfg);
5260 #if SIZEOF_REGISTER == 8
5261 if (COMPILE_LLVM (cfg)) {
5262 MONO_EMIT_NEW_UNALU (cfg, OP_ZEXT_I4, index_reg, args [1]->dreg);
5264 /* The array reg is 64 bits but the index reg is only 32 */
5265 MONO_EMIT_NEW_UNALU (cfg, OP_SEXT_I4, index_reg, args [1]->dreg);
5268 index_reg = args [1]->dreg;
5270 MONO_EMIT_BOUNDS_CHECK (cfg, args [0]->dreg, MonoString, length, index_reg);
5272 #if defined(TARGET_X86) || defined(TARGET_AMD64)
5273 EMIT_NEW_X86_LEA (cfg, ins, args [0]->dreg, index_reg, 1, MONO_STRUCT_OFFSET (MonoString, chars));
5274 add_reg = ins->dreg;
5275 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADU2_MEMBASE, dreg,
5278 int mult_reg = alloc_preg (cfg);
5279 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHL_IMM, mult_reg, index_reg, 1);
5280 MONO_EMIT_NEW_BIALU (cfg, OP_PADD, add_reg, mult_reg, args [0]->dreg);
5281 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADU2_MEMBASE, dreg,
5282 add_reg, MONO_STRUCT_OFFSET (MonoString, chars));
5284 type_from_op (cfg, ins, NULL, NULL);
5286 } else if (strcmp (cmethod->name, "get_Length") == 0 && fsig->param_count + fsig->hasthis == 1) {
5287 int dreg = alloc_ireg (cfg);
5288 /* Decompose later to allow more optimizations */
5289 EMIT_NEW_UNALU (cfg, ins, OP_STRLEN, dreg, args [0]->dreg);
5290 ins->type = STACK_I4;
5291 ins->flags |= MONO_INST_FAULT;
5292 cfg->cbb->has_array_access = TRUE;
5293 cfg->flags |= MONO_CFG_HAS_ARRAY_ACCESS;
5298 } else if (cmethod->klass == mono_defaults.object_class) {
5299 if (strcmp (cmethod->name, "GetType") == 0 && fsig->param_count + fsig->hasthis == 1) {
5300 int dreg = alloc_ireg_ref (cfg);
5301 int vt_reg = alloc_preg (cfg);
5302 MONO_EMIT_NEW_LOAD_MEMBASE_FAULT (cfg, vt_reg, args [0]->dreg, MONO_STRUCT_OFFSET (MonoObject, vtable));
5303 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, dreg, vt_reg, MONO_STRUCT_OFFSET (MonoVTable, type));
5304 type_from_op (cfg, ins, NULL, NULL);
5307 } else if (!cfg->backend->emulate_mul_div && strcmp (cmethod->name, "InternalGetHashCode") == 0 && fsig->param_count == 1 && !mono_gc_is_moving ()) {
5308 int dreg = alloc_ireg (cfg);
5309 int t1 = alloc_ireg (cfg);
5311 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHL_IMM, t1, args [0]->dreg, 3);
5312 EMIT_NEW_BIALU_IMM (cfg, ins, OP_MUL_IMM, dreg, t1, 2654435761u);
5313 ins->type = STACK_I4;
5316 } else if (strcmp (cmethod->name, ".ctor") == 0 && fsig->param_count == 0) {
5317 MONO_INST_NEW (cfg, ins, OP_NOP);
5318 MONO_ADD_INS (cfg->cbb, ins);
5322 } else if (cmethod->klass == mono_defaults.array_class) {
5323 if (strcmp (cmethod->name, "GetGenericValueImpl") == 0 && fsig->param_count + fsig->hasthis == 3 && !cfg->gsharedvt)
5324 return emit_array_generic_access (cfg, fsig, args, FALSE);
5325 else if (strcmp (cmethod->name, "SetGenericValueImpl") == 0 && fsig->param_count + fsig->hasthis == 3 && !cfg->gsharedvt)
5326 return emit_array_generic_access (cfg, fsig, args, TRUE);
5328 #ifndef MONO_BIG_ARRAYS
5330 * This is an inline version of GetLength/GetLowerBound(0) used frequently in
5333 else if (((strcmp (cmethod->name, "GetLength") == 0 && fsig->param_count + fsig->hasthis == 2) ||
5334 (strcmp (cmethod->name, "GetLowerBound") == 0 && fsig->param_count + fsig->hasthis == 2)) &&
5335 args [1]->opcode == OP_ICONST && args [1]->inst_c0 == 0) {
5336 int dreg = alloc_ireg (cfg);
5337 int bounds_reg = alloc_ireg_mp (cfg);
5338 MonoBasicBlock *end_bb, *szarray_bb;
5339 gboolean get_length = strcmp (cmethod->name, "GetLength") == 0;
5341 NEW_BBLOCK (cfg, end_bb);
5342 NEW_BBLOCK (cfg, szarray_bb);
5344 EMIT_NEW_LOAD_MEMBASE_FAULT (cfg, ins, OP_LOAD_MEMBASE, bounds_reg,
5345 args [0]->dreg, MONO_STRUCT_OFFSET (MonoArray, bounds));
5346 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, bounds_reg, 0);
5347 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBEQ, szarray_bb);
5348 /* Non-szarray case */
5350 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADI4_MEMBASE, dreg,
5351 bounds_reg, MONO_STRUCT_OFFSET (MonoArrayBounds, length));
5353 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADI4_MEMBASE, dreg,
5354 bounds_reg, MONO_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
5355 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
5356 MONO_START_BB (cfg, szarray_bb);
5359 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADI4_MEMBASE, dreg,
5360 args [0]->dreg, MONO_STRUCT_OFFSET (MonoArray, max_length));
5362 MONO_EMIT_NEW_ICONST (cfg, dreg, 0);
5363 MONO_START_BB (cfg, end_bb);
5365 EMIT_NEW_UNALU (cfg, ins, OP_MOVE, dreg, dreg);
5366 ins->type = STACK_I4;
5372 if (cmethod->name [0] != 'g')
5375 if (strcmp (cmethod->name, "get_Rank") == 0 && fsig->param_count + fsig->hasthis == 1) {
5376 int dreg = alloc_ireg (cfg);
5377 int vtable_reg = alloc_preg (cfg);
5378 MONO_EMIT_NEW_LOAD_MEMBASE_OP_FAULT (cfg, OP_LOAD_MEMBASE, vtable_reg,
5379 args [0]->dreg, MONO_STRUCT_OFFSET (MonoObject, vtable));
5380 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADU1_MEMBASE, dreg,
5381 vtable_reg, MONO_STRUCT_OFFSET (MonoVTable, rank));
5382 type_from_op (cfg, ins, NULL, NULL);
5385 } else if (strcmp (cmethod->name, "get_Length") == 0 && fsig->param_count + fsig->hasthis == 1) {
5386 int dreg = alloc_ireg (cfg);
5388 EMIT_NEW_LOAD_MEMBASE_FAULT (cfg, ins, OP_LOADI4_MEMBASE, dreg,
5389 args [0]->dreg, MONO_STRUCT_OFFSET (MonoArray, max_length));
5390 type_from_op (cfg, ins, NULL, NULL);
5395 } else if (cmethod->klass == runtime_helpers_class) {
5396 if (strcmp (cmethod->name, "get_OffsetToStringData") == 0 && fsig->param_count == 0) {
5397 EMIT_NEW_ICONST (cfg, ins, MONO_STRUCT_OFFSET (MonoString, chars));
5401 } else if (cmethod->klass == mono_defaults.monitor_class) {
5402 gboolean is_enter = FALSE;
5403 gboolean is_v4 = FALSE;
5405 if (!strcmp (cmethod->name, "Enter") && fsig->param_count == 2 && fsig->params [1]->byref) {
5409 if (!strcmp (cmethod->name, "Enter") && fsig->param_count == 1)
5414 * To make async stack traces work, icalls which can block should have a wrapper.
5415 * For Monitor.Enter, emit two calls: a fastpath which doesn't have a wrapper, and a slowpath, which does.
5417 MonoBasicBlock *end_bb;
5419 NEW_BBLOCK (cfg, end_bb);
5421 ins = mono_emit_jit_icall (cfg, is_v4 ? (gpointer)mono_monitor_enter_v4_fast : (gpointer)mono_monitor_enter_fast, args);
5422 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ICOMPARE_IMM, -1, ins->dreg, 0);
5423 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBNE_UN, end_bb);
5424 ins = mono_emit_jit_icall (cfg, is_v4 ? (gpointer)mono_monitor_enter_v4_internal : (gpointer)mono_monitor_enter_internal, args);
5425 MONO_START_BB (cfg, end_bb);
5428 } else if (cmethod->klass == mono_defaults.thread_class) {
5429 if (strcmp (cmethod->name, "SpinWait_nop") == 0 && fsig->param_count == 0) {
5430 MONO_INST_NEW (cfg, ins, OP_RELAXED_NOP);
5431 MONO_ADD_INS (cfg->cbb, ins);
5433 } else if (strcmp (cmethod->name, "MemoryBarrier") == 0 && fsig->param_count == 0) {
5434 return emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
5435 } else if (!strcmp (cmethod->name, "VolatileRead") && fsig->param_count == 1) {
5437 gboolean is_ref = mini_type_is_reference (fsig->params [0]);
5439 if (fsig->params [0]->type == MONO_TYPE_I1)
5440 opcode = OP_LOADI1_MEMBASE;
5441 else if (fsig->params [0]->type == MONO_TYPE_U1)
5442 opcode = OP_LOADU1_MEMBASE;
5443 else if (fsig->params [0]->type == MONO_TYPE_I2)
5444 opcode = OP_LOADI2_MEMBASE;
5445 else if (fsig->params [0]->type == MONO_TYPE_U2)
5446 opcode = OP_LOADU2_MEMBASE;
5447 else if (fsig->params [0]->type == MONO_TYPE_I4)
5448 opcode = OP_LOADI4_MEMBASE;
5449 else if (fsig->params [0]->type == MONO_TYPE_U4)
5450 opcode = OP_LOADU4_MEMBASE;
5451 else if (fsig->params [0]->type == MONO_TYPE_I8 || fsig->params [0]->type == MONO_TYPE_U8)
5452 opcode = OP_LOADI8_MEMBASE;
5453 else if (fsig->params [0]->type == MONO_TYPE_R4)
5454 opcode = OP_LOADR4_MEMBASE;
5455 else if (fsig->params [0]->type == MONO_TYPE_R8)
5456 opcode = OP_LOADR8_MEMBASE;
5457 else if (is_ref || fsig->params [0]->type == MONO_TYPE_I || fsig->params [0]->type == MONO_TYPE_U)
5458 opcode = OP_LOAD_MEMBASE;
5461 MONO_INST_NEW (cfg, ins, opcode);
5462 ins->inst_basereg = args [0]->dreg;
5463 ins->inst_offset = 0;
5464 MONO_ADD_INS (cfg->cbb, ins);
5466 switch (fsig->params [0]->type) {
5473 ins->dreg = mono_alloc_ireg (cfg);
5474 ins->type = STACK_I4;
5478 ins->dreg = mono_alloc_lreg (cfg);
5479 ins->type = STACK_I8;
5483 ins->dreg = mono_alloc_ireg (cfg);
5484 #if SIZEOF_REGISTER == 8
5485 ins->type = STACK_I8;
5487 ins->type = STACK_I4;
5492 ins->dreg = mono_alloc_freg (cfg);
5493 ins->type = STACK_R8;
5496 g_assert (mini_type_is_reference (fsig->params [0]));
5497 ins->dreg = mono_alloc_ireg_ref (cfg);
5498 ins->type = STACK_OBJ;
5502 if (opcode == OP_LOADI8_MEMBASE)
5503 ins = mono_decompose_opcode (cfg, ins);
5505 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
5509 } else if (!strcmp (cmethod->name, "VolatileWrite") && fsig->param_count == 2) {
5511 gboolean is_ref = mini_type_is_reference (fsig->params [0]);
5513 if (fsig->params [0]->type == MONO_TYPE_I1 || fsig->params [0]->type == MONO_TYPE_U1)
5514 opcode = OP_STOREI1_MEMBASE_REG;
5515 else if (fsig->params [0]->type == MONO_TYPE_I2 || fsig->params [0]->type == MONO_TYPE_U2)
5516 opcode = OP_STOREI2_MEMBASE_REG;
5517 else if (fsig->params [0]->type == MONO_TYPE_I4 || fsig->params [0]->type == MONO_TYPE_U4)
5518 opcode = OP_STOREI4_MEMBASE_REG;
5519 else if (fsig->params [0]->type == MONO_TYPE_I8 || fsig->params [0]->type == MONO_TYPE_U8)
5520 opcode = OP_STOREI8_MEMBASE_REG;
5521 else if (fsig->params [0]->type == MONO_TYPE_R4)
5522 opcode = OP_STORER4_MEMBASE_REG;
5523 else if (fsig->params [0]->type == MONO_TYPE_R8)
5524 opcode = OP_STORER8_MEMBASE_REG;
5525 else if (is_ref || fsig->params [0]->type == MONO_TYPE_I || fsig->params [0]->type == MONO_TYPE_U)
5526 opcode = OP_STORE_MEMBASE_REG;
5529 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
5531 MONO_INST_NEW (cfg, ins, opcode);
5532 ins->sreg1 = args [1]->dreg;
5533 ins->inst_destbasereg = args [0]->dreg;
5534 ins->inst_offset = 0;
5535 MONO_ADD_INS (cfg->cbb, ins);
5537 if (opcode == OP_STOREI8_MEMBASE_REG)
5538 ins = mono_decompose_opcode (cfg, ins);
5543 } else if (cmethod->klass->image == mono_defaults.corlib &&
5544 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
5545 (strcmp (cmethod->klass->name, "Interlocked") == 0)) {
5548 #if SIZEOF_REGISTER == 8
5549 if (!cfg->llvm_only && strcmp (cmethod->name, "Read") == 0 && fsig->param_count == 1 && (fsig->params [0]->type == MONO_TYPE_I8)) {
5550 if (!cfg->llvm_only && mono_arch_opcode_supported (OP_ATOMIC_LOAD_I8)) {
5551 MONO_INST_NEW (cfg, ins, OP_ATOMIC_LOAD_I8);
5552 ins->dreg = mono_alloc_preg (cfg);
5553 ins->sreg1 = args [0]->dreg;
5554 ins->type = STACK_I8;
5555 ins->backend.memory_barrier_kind = MONO_MEMORY_BARRIER_SEQ;
5556 MONO_ADD_INS (cfg->cbb, ins);
5560 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
5562 /* 64 bit reads are already atomic */
5563 MONO_INST_NEW (cfg, load_ins, OP_LOADI8_MEMBASE);
5564 load_ins->dreg = mono_alloc_preg (cfg);
5565 load_ins->inst_basereg = args [0]->dreg;
5566 load_ins->inst_offset = 0;
5567 load_ins->type = STACK_I8;
5568 MONO_ADD_INS (cfg->cbb, load_ins);
5570 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
5577 if (strcmp (cmethod->name, "Increment") == 0 && fsig->param_count == 1) {
5578 MonoInst *ins_iconst;
5581 if (fsig->params [0]->type == MONO_TYPE_I4) {
5582 opcode = OP_ATOMIC_ADD_I4;
5583 cfg->has_atomic_add_i4 = TRUE;
5585 #if SIZEOF_REGISTER == 8
5586 else if (fsig->params [0]->type == MONO_TYPE_I8)
5587 opcode = OP_ATOMIC_ADD_I8;
5590 if (!mono_arch_opcode_supported (opcode))
5592 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5593 ins_iconst->inst_c0 = 1;
5594 ins_iconst->dreg = mono_alloc_ireg (cfg);
5595 MONO_ADD_INS (cfg->cbb, ins_iconst);
5597 MONO_INST_NEW (cfg, ins, opcode);
5598 ins->dreg = mono_alloc_ireg (cfg);
5599 ins->inst_basereg = args [0]->dreg;
5600 ins->inst_offset = 0;
5601 ins->sreg2 = ins_iconst->dreg;
5602 ins->type = (opcode == OP_ATOMIC_ADD_I4) ? STACK_I4 : STACK_I8;
5603 MONO_ADD_INS (cfg->cbb, ins);
5605 } else if (strcmp (cmethod->name, "Decrement") == 0 && fsig->param_count == 1) {
5606 MonoInst *ins_iconst;
5609 if (fsig->params [0]->type == MONO_TYPE_I4) {
5610 opcode = OP_ATOMIC_ADD_I4;
5611 cfg->has_atomic_add_i4 = TRUE;
5613 #if SIZEOF_REGISTER == 8
5614 else if (fsig->params [0]->type == MONO_TYPE_I8)
5615 opcode = OP_ATOMIC_ADD_I8;
5618 if (!mono_arch_opcode_supported (opcode))
5620 MONO_INST_NEW (cfg, ins_iconst, OP_ICONST);
5621 ins_iconst->inst_c0 = -1;
5622 ins_iconst->dreg = mono_alloc_ireg (cfg);
5623 MONO_ADD_INS (cfg->cbb, ins_iconst);
5625 MONO_INST_NEW (cfg, ins, opcode);
5626 ins->dreg = mono_alloc_ireg (cfg);
5627 ins->inst_basereg = args [0]->dreg;
5628 ins->inst_offset = 0;
5629 ins->sreg2 = ins_iconst->dreg;
5630 ins->type = (opcode == OP_ATOMIC_ADD_I4) ? STACK_I4 : STACK_I8;
5631 MONO_ADD_INS (cfg->cbb, ins);
5633 } else if (strcmp (cmethod->name, "Add") == 0 && fsig->param_count == 2) {
5636 if (fsig->params [0]->type == MONO_TYPE_I4) {
5637 opcode = OP_ATOMIC_ADD_I4;
5638 cfg->has_atomic_add_i4 = TRUE;
5640 #if SIZEOF_REGISTER == 8
5641 else if (fsig->params [0]->type == MONO_TYPE_I8)
5642 opcode = OP_ATOMIC_ADD_I8;
5645 if (!mono_arch_opcode_supported (opcode))
5647 MONO_INST_NEW (cfg, ins, opcode);
5648 ins->dreg = mono_alloc_ireg (cfg);
5649 ins->inst_basereg = args [0]->dreg;
5650 ins->inst_offset = 0;
5651 ins->sreg2 = args [1]->dreg;
5652 ins->type = (opcode == OP_ATOMIC_ADD_I4) ? STACK_I4 : STACK_I8;
5653 MONO_ADD_INS (cfg->cbb, ins);
5656 else if (strcmp (cmethod->name, "Exchange") == 0 && fsig->param_count == 2) {
5657 MonoInst *f2i = NULL, *i2f;
5658 guint32 opcode, f2i_opcode, i2f_opcode;
5659 gboolean is_ref = mini_type_is_reference (fsig->params [0]);
5660 gboolean is_float = fsig->params [0]->type == MONO_TYPE_R4 || fsig->params [0]->type == MONO_TYPE_R8;
5662 if (fsig->params [0]->type == MONO_TYPE_I4 ||
5663 fsig->params [0]->type == MONO_TYPE_R4) {
5664 opcode = OP_ATOMIC_EXCHANGE_I4;
5665 f2i_opcode = OP_MOVE_F_TO_I4;
5666 i2f_opcode = OP_MOVE_I4_TO_F;
5667 cfg->has_atomic_exchange_i4 = TRUE;
5669 #if SIZEOF_REGISTER == 8
5671 fsig->params [0]->type == MONO_TYPE_I8 ||
5672 fsig->params [0]->type == MONO_TYPE_R8 ||
5673 fsig->params [0]->type == MONO_TYPE_I) {
5674 opcode = OP_ATOMIC_EXCHANGE_I8;
5675 f2i_opcode = OP_MOVE_F_TO_I8;
5676 i2f_opcode = OP_MOVE_I8_TO_F;
5679 else if (is_ref || fsig->params [0]->type == MONO_TYPE_I) {
5680 opcode = OP_ATOMIC_EXCHANGE_I4;
5681 cfg->has_atomic_exchange_i4 = TRUE;
5687 if (!mono_arch_opcode_supported (opcode))
5691 /* TODO: Decompose these opcodes instead of bailing here. */
5692 if (COMPILE_SOFT_FLOAT (cfg))
5695 MONO_INST_NEW (cfg, f2i, f2i_opcode);
5696 f2i->dreg = mono_alloc_ireg (cfg);
5697 f2i->sreg1 = args [1]->dreg;
5698 if (f2i_opcode == OP_MOVE_F_TO_I4)
5699 f2i->backend.spill_var = mini_get_int_to_float_spill_area (cfg);
5700 MONO_ADD_INS (cfg->cbb, f2i);
5703 MONO_INST_NEW (cfg, ins, opcode);
5704 ins->dreg = is_ref ? mono_alloc_ireg_ref (cfg) : mono_alloc_ireg (cfg);
5705 ins->inst_basereg = args [0]->dreg;
5706 ins->inst_offset = 0;
5707 ins->sreg2 = is_float ? f2i->dreg : args [1]->dreg;
5708 MONO_ADD_INS (cfg->cbb, ins);
5710 switch (fsig->params [0]->type) {
5712 ins->type = STACK_I4;
5715 ins->type = STACK_I8;
5718 #if SIZEOF_REGISTER == 8
5719 ins->type = STACK_I8;
5721 ins->type = STACK_I4;
5726 ins->type = STACK_R8;
5729 g_assert (mini_type_is_reference (fsig->params [0]));
5730 ins->type = STACK_OBJ;
5735 MONO_INST_NEW (cfg, i2f, i2f_opcode);
5736 i2f->dreg = mono_alloc_freg (cfg);
5737 i2f->sreg1 = ins->dreg;
5738 i2f->type = STACK_R8;
5739 if (i2f_opcode == OP_MOVE_I4_TO_F)
5740 i2f->backend.spill_var = mini_get_int_to_float_spill_area (cfg);
5741 MONO_ADD_INS (cfg->cbb, i2f);
5746 if (cfg->gen_write_barriers && is_ref)
5747 emit_write_barrier (cfg, args [0], args [1]);
5749 else if ((strcmp (cmethod->name, "CompareExchange") == 0) && fsig->param_count == 3) {
5750 MonoInst *f2i_new = NULL, *f2i_cmp = NULL, *i2f;
5751 guint32 opcode, f2i_opcode, i2f_opcode;
5752 gboolean is_ref = mini_type_is_reference (fsig->params [1]);
5753 gboolean is_float = fsig->params [1]->type == MONO_TYPE_R4 || fsig->params [1]->type == MONO_TYPE_R8;
5755 if (fsig->params [1]->type == MONO_TYPE_I4 ||
5756 fsig->params [1]->type == MONO_TYPE_R4) {
5757 opcode = OP_ATOMIC_CAS_I4;
5758 f2i_opcode = OP_MOVE_F_TO_I4;
5759 i2f_opcode = OP_MOVE_I4_TO_F;
5760 cfg->has_atomic_cas_i4 = TRUE;
5762 #if SIZEOF_REGISTER == 8
5764 fsig->params [1]->type == MONO_TYPE_I8 ||
5765 fsig->params [1]->type == MONO_TYPE_R8 ||
5766 fsig->params [1]->type == MONO_TYPE_I) {
5767 opcode = OP_ATOMIC_CAS_I8;
5768 f2i_opcode = OP_MOVE_F_TO_I8;
5769 i2f_opcode = OP_MOVE_I8_TO_F;
5772 else if (is_ref || fsig->params [1]->type == MONO_TYPE_I) {
5773 opcode = OP_ATOMIC_CAS_I4;
5774 cfg->has_atomic_cas_i4 = TRUE;
5780 if (!mono_arch_opcode_supported (opcode))
5784 /* TODO: Decompose these opcodes instead of bailing here. */
5785 if (COMPILE_SOFT_FLOAT (cfg))
5788 MONO_INST_NEW (cfg, f2i_new, f2i_opcode);
5789 f2i_new->dreg = mono_alloc_ireg (cfg);
5790 f2i_new->sreg1 = args [1]->dreg;
5791 if (f2i_opcode == OP_MOVE_F_TO_I4)
5792 f2i_new->backend.spill_var = mini_get_int_to_float_spill_area (cfg);
5793 MONO_ADD_INS (cfg->cbb, f2i_new);
5795 MONO_INST_NEW (cfg, f2i_cmp, f2i_opcode);
5796 f2i_cmp->dreg = mono_alloc_ireg (cfg);
5797 f2i_cmp->sreg1 = args [2]->dreg;
5798 if (f2i_opcode == OP_MOVE_F_TO_I4)
5799 f2i_cmp->backend.spill_var = mini_get_int_to_float_spill_area (cfg);
5800 MONO_ADD_INS (cfg->cbb, f2i_cmp);
5803 MONO_INST_NEW (cfg, ins, opcode);
5804 ins->dreg = is_ref ? alloc_ireg_ref (cfg) : alloc_ireg (cfg);
5805 ins->sreg1 = args [0]->dreg;
5806 ins->sreg2 = is_float ? f2i_new->dreg : args [1]->dreg;
5807 ins->sreg3 = is_float ? f2i_cmp->dreg : args [2]->dreg;
5808 MONO_ADD_INS (cfg->cbb, ins);
5810 switch (fsig->params [1]->type) {
5812 ins->type = STACK_I4;
5815 ins->type = STACK_I8;
5818 #if SIZEOF_REGISTER == 8
5819 ins->type = STACK_I8;
5821 ins->type = STACK_I4;
5825 ins->type = cfg->r4_stack_type;
5828 ins->type = STACK_R8;
5831 g_assert (mini_type_is_reference (fsig->params [1]));
5832 ins->type = STACK_OBJ;
5837 MONO_INST_NEW (cfg, i2f, i2f_opcode);
5838 i2f->dreg = mono_alloc_freg (cfg);
5839 i2f->sreg1 = ins->dreg;
5840 i2f->type = STACK_R8;
5841 if (i2f_opcode == OP_MOVE_I4_TO_F)
5842 i2f->backend.spill_var = mini_get_int_to_float_spill_area (cfg);
5843 MONO_ADD_INS (cfg->cbb, i2f);
5848 if (cfg->gen_write_barriers && is_ref)
5849 emit_write_barrier (cfg, args [0], args [1]);
5851 else if ((strcmp (cmethod->name, "CompareExchange") == 0) && fsig->param_count == 4 &&
5852 fsig->params [1]->type == MONO_TYPE_I4) {
5853 MonoInst *cmp, *ceq;
5855 if (!mono_arch_opcode_supported (OP_ATOMIC_CAS_I4))
5858 /* int32 r = CAS (location, value, comparand); */
5859 MONO_INST_NEW (cfg, ins, OP_ATOMIC_CAS_I4);
5860 ins->dreg = alloc_ireg (cfg);
5861 ins->sreg1 = args [0]->dreg;
5862 ins->sreg2 = args [1]->dreg;
5863 ins->sreg3 = args [2]->dreg;
5864 ins->type = STACK_I4;
5865 MONO_ADD_INS (cfg->cbb, ins);
5867 /* bool result = r == comparand; */
5868 MONO_INST_NEW (cfg, cmp, OP_ICOMPARE);
5869 cmp->sreg1 = ins->dreg;
5870 cmp->sreg2 = args [2]->dreg;
5871 cmp->type = STACK_I4;
5872 MONO_ADD_INS (cfg->cbb, cmp);
5874 MONO_INST_NEW (cfg, ceq, OP_ICEQ);
5875 ceq->dreg = alloc_ireg (cfg);
5876 ceq->type = STACK_I4;
5877 MONO_ADD_INS (cfg->cbb, ceq);
5879 /* *success = result; */
5880 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI1_MEMBASE_REG, args [3]->dreg, 0, ceq->dreg);
5882 cfg->has_atomic_cas_i4 = TRUE;
5884 else if (strcmp (cmethod->name, "MemoryBarrier") == 0 && fsig->param_count == 0)
5885 ins = emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
5889 } else if (cmethod->klass->image == mono_defaults.corlib &&
5890 (strcmp (cmethod->klass->name_space, "System.Threading") == 0) &&
5891 (strcmp (cmethod->klass->name, "Volatile") == 0)) {
5894 if (!cfg->llvm_only && !strcmp (cmethod->name, "Read") && fsig->param_count == 1) {
5896 MonoType *t = fsig->params [0];
5898 gboolean is_float = t->type == MONO_TYPE_R4 || t->type == MONO_TYPE_R8;
5900 g_assert (t->byref);
5901 /* t is a byref type, so the reference check is more complicated */
5902 is_ref = mini_type_is_reference (&mono_class_from_mono_type (t)->byval_arg);
5903 if (t->type == MONO_TYPE_I1)
5904 opcode = OP_ATOMIC_LOAD_I1;
5905 else if (t->type == MONO_TYPE_U1 || t->type == MONO_TYPE_BOOLEAN)
5906 opcode = OP_ATOMIC_LOAD_U1;
5907 else if (t->type == MONO_TYPE_I2)
5908 opcode = OP_ATOMIC_LOAD_I2;
5909 else if (t->type == MONO_TYPE_U2)
5910 opcode = OP_ATOMIC_LOAD_U2;
5911 else if (t->type == MONO_TYPE_I4)
5912 opcode = OP_ATOMIC_LOAD_I4;
5913 else if (t->type == MONO_TYPE_U4)
5914 opcode = OP_ATOMIC_LOAD_U4;
5915 else if (t->type == MONO_TYPE_R4)
5916 opcode = OP_ATOMIC_LOAD_R4;
5917 else if (t->type == MONO_TYPE_R8)
5918 opcode = OP_ATOMIC_LOAD_R8;
5919 #if SIZEOF_REGISTER == 8
5920 else if (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_I)
5921 opcode = OP_ATOMIC_LOAD_I8;
5922 else if (is_ref || t->type == MONO_TYPE_U8 || t->type == MONO_TYPE_U)
5923 opcode = OP_ATOMIC_LOAD_U8;
5925 else if (t->type == MONO_TYPE_I)
5926 opcode = OP_ATOMIC_LOAD_I4;
5927 else if (is_ref || t->type == MONO_TYPE_U)
5928 opcode = OP_ATOMIC_LOAD_U4;
5932 if (!mono_arch_opcode_supported (opcode))
5935 MONO_INST_NEW (cfg, ins, opcode);
5936 ins->dreg = is_ref ? mono_alloc_ireg_ref (cfg) : (is_float ? mono_alloc_freg (cfg) : mono_alloc_ireg (cfg));
5937 ins->sreg1 = args [0]->dreg;
5938 ins->backend.memory_barrier_kind = MONO_MEMORY_BARRIER_ACQ;
5939 MONO_ADD_INS (cfg->cbb, ins);
5942 case MONO_TYPE_BOOLEAN:
5949 ins->type = STACK_I4;
5953 ins->type = STACK_I8;
5957 #if SIZEOF_REGISTER == 8
5958 ins->type = STACK_I8;
5960 ins->type = STACK_I4;
5964 ins->type = cfg->r4_stack_type;
5967 ins->type = STACK_R8;
5971 ins->type = STACK_OBJ;
5977 if (!cfg->llvm_only && !strcmp (cmethod->name, "Write") && fsig->param_count == 2) {
5979 MonoType *t = fsig->params [0];
5982 g_assert (t->byref);
5983 is_ref = mini_type_is_reference (&mono_class_from_mono_type (t)->byval_arg);
5984 if (t->type == MONO_TYPE_I1)
5985 opcode = OP_ATOMIC_STORE_I1;
5986 else if (t->type == MONO_TYPE_U1 || t->type == MONO_TYPE_BOOLEAN)
5987 opcode = OP_ATOMIC_STORE_U1;
5988 else if (t->type == MONO_TYPE_I2)
5989 opcode = OP_ATOMIC_STORE_I2;
5990 else if (t->type == MONO_TYPE_U2)
5991 opcode = OP_ATOMIC_STORE_U2;
5992 else if (t->type == MONO_TYPE_I4)
5993 opcode = OP_ATOMIC_STORE_I4;
5994 else if (t->type == MONO_TYPE_U4)
5995 opcode = OP_ATOMIC_STORE_U4;
5996 else if (t->type == MONO_TYPE_R4)
5997 opcode = OP_ATOMIC_STORE_R4;
5998 else if (t->type == MONO_TYPE_R8)
5999 opcode = OP_ATOMIC_STORE_R8;
6000 #if SIZEOF_REGISTER == 8
6001 else if (t->type == MONO_TYPE_I8 || t->type == MONO_TYPE_I)
6002 opcode = OP_ATOMIC_STORE_I8;
6003 else if (is_ref || t->type == MONO_TYPE_U8 || t->type == MONO_TYPE_U)
6004 opcode = OP_ATOMIC_STORE_U8;
6006 else if (t->type == MONO_TYPE_I)
6007 opcode = OP_ATOMIC_STORE_I4;
6008 else if (is_ref || t->type == MONO_TYPE_U)
6009 opcode = OP_ATOMIC_STORE_U4;
6013 if (!mono_arch_opcode_supported (opcode))
6016 MONO_INST_NEW (cfg, ins, opcode);
6017 ins->dreg = args [0]->dreg;
6018 ins->sreg1 = args [1]->dreg;
6019 ins->backend.memory_barrier_kind = MONO_MEMORY_BARRIER_REL;
6020 MONO_ADD_INS (cfg->cbb, ins);
6022 if (cfg->gen_write_barriers && is_ref)
6023 emit_write_barrier (cfg, args [0], args [1]);
6029 } else if (cmethod->klass->image == mono_defaults.corlib &&
6030 (strcmp (cmethod->klass->name_space, "System.Diagnostics") == 0) &&
6031 (strcmp (cmethod->klass->name, "Debugger") == 0)) {
6032 if (!strcmp (cmethod->name, "Break") && fsig->param_count == 0) {
6033 if (should_insert_brekpoint (cfg->method)) {
6034 ins = mono_emit_jit_icall (cfg, mono_debugger_agent_user_break, NULL);
6036 MONO_INST_NEW (cfg, ins, OP_NOP);
6037 MONO_ADD_INS (cfg->cbb, ins);
6041 } else if (cmethod->klass->image == mono_defaults.corlib &&
6042 (strcmp (cmethod->klass->name_space, "System") == 0) &&
6043 (strcmp (cmethod->klass->name, "Environment") == 0)) {
6044 if (!strcmp (cmethod->name, "get_IsRunningOnWindows") && fsig->param_count == 0) {
6046 EMIT_NEW_ICONST (cfg, ins, 1);
6048 EMIT_NEW_ICONST (cfg, ins, 0);
6051 } else if (cmethod->klass->image == mono_defaults.corlib &&
6052 (strcmp (cmethod->klass->name_space, "System.Reflection") == 0) &&
6053 (strcmp (cmethod->klass->name, "Assembly") == 0)) {
6054 if (cfg->llvm_only && !strcmp (cmethod->name, "GetExecutingAssembly")) {
6055 /* No stack walks are currently available, so implement this as an intrinsic */
6056 MonoInst *assembly_ins;
6058 EMIT_NEW_AOTCONST (cfg, assembly_ins, MONO_PATCH_INFO_IMAGE, cfg->method->klass->image);
6059 ins = mono_emit_jit_icall (cfg, mono_get_assembly_object, &assembly_ins);
6062 } else if (cmethod->klass->image == mono_defaults.corlib &&
6063 (strcmp (cmethod->klass->name_space, "System.Reflection") == 0) &&
6064 (strcmp (cmethod->klass->name, "MethodBase") == 0)) {
6065 if (cfg->llvm_only && !strcmp (cmethod->name, "GetCurrentMethod")) {
6066 /* No stack walks are currently available, so implement this as an intrinsic */
6067 MonoInst *method_ins;
6068 MonoMethod *declaring = cfg->method;
6070 /* This returns the declaring generic method */
6071 if (declaring->is_inflated)
6072 declaring = ((MonoMethodInflated*)cfg->method)->declaring;
6073 EMIT_NEW_AOTCONST (cfg, method_ins, MONO_PATCH_INFO_METHODCONST, declaring);
6074 ins = mono_emit_jit_icall (cfg, mono_get_method_object, &method_ins);
6075 cfg->no_inline = TRUE;
6076 if (cfg->method != cfg->current_method)
6077 inline_failure (cfg, "MethodBase:GetCurrentMethod ()");
6080 } else if (cmethod->klass == mono_defaults.math_class) {
6082 * There is general branchless code for Min/Max, but it does not work for
6084 * http://everything2.com/?node_id=1051618
6086 } else if (cmethod->klass == mono_defaults.systemtype_class && !strcmp (cmethod->name, "op_Equality")) {
6087 EMIT_NEW_BIALU (cfg, ins, OP_COMPARE, -1, args [0]->dreg, args [1]->dreg);
6088 MONO_INST_NEW (cfg, ins, OP_PCEQ);
6089 ins->dreg = alloc_preg (cfg);
6090 ins->type = STACK_I4;
6091 MONO_ADD_INS (cfg->cbb, ins);
6093 } else if (((!strcmp (cmethod->klass->image->assembly->aname.name, "MonoMac") ||
6094 !strcmp (cmethod->klass->image->assembly->aname.name, "monotouch")) &&
6095 !strcmp (cmethod->klass->name_space, "XamCore.ObjCRuntime") &&
6096 !strcmp (cmethod->klass->name, "Selector")) ||
6097 ((!strcmp (cmethod->klass->image->assembly->aname.name, "Xamarin.iOS") ||
6098 !strcmp (cmethod->klass->image->assembly->aname.name, "Xamarin.Mac")) &&
6099 !strcmp (cmethod->klass->name_space, "ObjCRuntime") &&
6100 !strcmp (cmethod->klass->name, "Selector"))
6102 if ((cfg->backend->have_objc_get_selector || cfg->compile_llvm) &&
6103 !strcmp (cmethod->name, "GetHandle") && fsig->param_count == 1 &&
6104 (args [0]->opcode == OP_GOT_ENTRY || args [0]->opcode == OP_AOTCONST) &&
6107 MonoJumpInfoToken *ji;
6110 if (args [0]->opcode == OP_GOT_ENTRY) {
6111 pi = (MonoInst *)args [0]->inst_p1;
6112 g_assert (pi->opcode == OP_PATCH_INFO);
6113 g_assert (GPOINTER_TO_INT (pi->inst_p1) == MONO_PATCH_INFO_LDSTR);
6114 ji = (MonoJumpInfoToken *)pi->inst_p0;
6116 g_assert (GPOINTER_TO_INT (args [0]->inst_p1) == MONO_PATCH_INFO_LDSTR);
6117 ji = (MonoJumpInfoToken *)args [0]->inst_p0;
6120 NULLIFY_INS (args [0]);
6122 s = mono_ldstr_utf8 (ji->image, mono_metadata_token_index (ji->token), &cfg->error);
6123 return_val_if_nok (&cfg->error, NULL);
6125 MONO_INST_NEW (cfg, ins, OP_OBJC_GET_SELECTOR);
6126 ins->dreg = mono_alloc_ireg (cfg);
6129 MONO_ADD_INS (cfg->cbb, ins);
6134 #ifdef MONO_ARCH_SIMD_INTRINSICS
6135 if (cfg->opt & MONO_OPT_SIMD) {
6136 ins = mono_emit_simd_intrinsics (cfg, cmethod, fsig, args);
6142 ins = mono_emit_native_types_intrinsics (cfg, cmethod, fsig, args);
6146 if (COMPILE_LLVM (cfg)) {
6147 ins = llvm_emit_inst_for_method (cfg, cmethod, fsig, args);
6152 return mono_arch_emit_inst_for_method (cfg, cmethod, fsig, args);
6156 * This entry point could be used later for arbitrary method
6159 inline static MonoInst*
6160 mini_redirect_call (MonoCompile *cfg, MonoMethod *method,
6161 MonoMethodSignature *signature, MonoInst **args, MonoInst *this_ins)
6163 if (method->klass == mono_defaults.string_class) {
6164 /* managed string allocation support */
6165 if (strcmp (method->name, "InternalAllocateStr") == 0 && !(mono_profiler_events & MONO_PROFILE_ALLOCATIONS) && !(cfg->opt & MONO_OPT_SHARED)) {
6166 MonoInst *iargs [2];
6167 MonoVTable *vtable = mono_class_vtable (cfg->domain, method->klass);
6168 MonoMethod *managed_alloc = NULL;
6170 g_assert (vtable); /*Should not fail since it System.String*/
6171 #ifndef MONO_CROSS_COMPILE
6172 managed_alloc = mono_gc_get_managed_allocator (method->klass, FALSE, FALSE);
6176 EMIT_NEW_VTABLECONST (cfg, iargs [0], vtable);
6177 iargs [1] = args [0];
6178 return mono_emit_method_call (cfg, managed_alloc, iargs, this_ins);
6185 mono_save_args (MonoCompile *cfg, MonoMethodSignature *sig, MonoInst **sp)
6187 MonoInst *store, *temp;
6190 for (i = 0; i < sig->param_count + sig->hasthis; ++i) {
6191 MonoType *argtype = (sig->hasthis && (i == 0)) ? type_from_stack_type (*sp) : sig->params [i - sig->hasthis];
6194 * FIXME: We should use *args++ = sp [0], but that would mean the arg
6195 * would be different than the MonoInst's used to represent arguments, and
6196 * the ldelema implementation can't deal with that.
6197 * Solution: When ldelema is used on an inline argument, create a var for
6198 * it, emit ldelema on that var, and emit the saving code below in
6199 * inline_method () if needed.
6201 temp = mono_compile_create_var (cfg, argtype, OP_LOCAL);
6202 cfg->args [i] = temp;
6203 /* This uses cfg->args [i] which is set by the preceeding line */
6204 EMIT_NEW_ARGSTORE (cfg, store, i, *sp);
6205 store->cil_code = sp [0]->cil_code;
6210 #define MONO_INLINE_CALLED_LIMITED_METHODS 1
6211 #define MONO_INLINE_CALLER_LIMITED_METHODS 1
6213 #if (MONO_INLINE_CALLED_LIMITED_METHODS)
6215 check_inline_called_method_name_limit (MonoMethod *called_method)
6218 static const char *limit = NULL;
6220 if (limit == NULL) {
6221 const char *limit_string = g_getenv ("MONO_INLINE_CALLED_METHOD_NAME_LIMIT");
6223 if (limit_string != NULL)
6224 limit = limit_string;
6229 if (limit [0] != '\0') {
6230 char *called_method_name = mono_method_full_name (called_method, TRUE);
6232 strncmp_result = strncmp (called_method_name, limit, strlen (limit));
6233 g_free (called_method_name);
6235 //return (strncmp_result <= 0);
6236 return (strncmp_result == 0);
6243 #if (MONO_INLINE_CALLER_LIMITED_METHODS)
6245 check_inline_caller_method_name_limit (MonoMethod *caller_method)
6248 static const char *limit = NULL;
6250 if (limit == NULL) {
6251 const char *limit_string = g_getenv ("MONO_INLINE_CALLER_METHOD_NAME_LIMIT");
6252 if (limit_string != NULL) {
6253 limit = limit_string;
6259 if (limit [0] != '\0') {
6260 char *caller_method_name = mono_method_full_name (caller_method, TRUE);
6262 strncmp_result = strncmp (caller_method_name, limit, strlen (limit));
6263 g_free (caller_method_name);
6265 //return (strncmp_result <= 0);
6266 return (strncmp_result == 0);
6274 emit_init_rvar (MonoCompile *cfg, int dreg, MonoType *rtype)
6276 static double r8_0 = 0.0;
6277 static float r4_0 = 0.0;
6281 rtype = mini_get_underlying_type (rtype);
6285 MONO_EMIT_NEW_PCONST (cfg, dreg, NULL);
6286 } else if (t >= MONO_TYPE_BOOLEAN && t <= MONO_TYPE_U4) {
6287 MONO_EMIT_NEW_ICONST (cfg, dreg, 0);
6288 } else if (t == MONO_TYPE_I8 || t == MONO_TYPE_U8) {
6289 MONO_EMIT_NEW_I8CONST (cfg, dreg, 0);
6290 } else if (cfg->r4fp && t == MONO_TYPE_R4) {
6291 MONO_INST_NEW (cfg, ins, OP_R4CONST);
6292 ins->type = STACK_R4;
6293 ins->inst_p0 = (void*)&r4_0;
6295 MONO_ADD_INS (cfg->cbb, ins);
6296 } else if (t == MONO_TYPE_R4 || t == MONO_TYPE_R8) {
6297 MONO_INST_NEW (cfg, ins, OP_R8CONST);
6298 ins->type = STACK_R8;
6299 ins->inst_p0 = (void*)&r8_0;
6301 MONO_ADD_INS (cfg->cbb, ins);
6302 } else if ((t == MONO_TYPE_VALUETYPE) || (t == MONO_TYPE_TYPEDBYREF) ||
6303 ((t == MONO_TYPE_GENERICINST) && mono_type_generic_inst_is_valuetype (rtype))) {
6304 MONO_EMIT_NEW_VZERO (cfg, dreg, mono_class_from_mono_type (rtype));
6305 } else if (((t == MONO_TYPE_VAR) || (t == MONO_TYPE_MVAR)) && mini_type_var_is_vt (rtype)) {
6306 MONO_EMIT_NEW_VZERO (cfg, dreg, mono_class_from_mono_type (rtype));
6308 MONO_EMIT_NEW_PCONST (cfg, dreg, NULL);
6313 emit_dummy_init_rvar (MonoCompile *cfg, int dreg, MonoType *rtype)
6317 rtype = mini_get_underlying_type (rtype);
6321 MONO_EMIT_NEW_DUMMY_INIT (cfg, dreg, OP_DUMMY_PCONST);
6322 } else if (t >= MONO_TYPE_BOOLEAN && t <= MONO_TYPE_U4) {
6323 MONO_EMIT_NEW_DUMMY_INIT (cfg, dreg, OP_DUMMY_ICONST);
6324 } else if (t == MONO_TYPE_I8 || t == MONO_TYPE_U8) {
6325 MONO_EMIT_NEW_DUMMY_INIT (cfg, dreg, OP_DUMMY_I8CONST);
6326 } else if (cfg->r4fp && t == MONO_TYPE_R4) {
6327 MONO_EMIT_NEW_DUMMY_INIT (cfg, dreg, OP_DUMMY_R4CONST);
6328 } else if (t == MONO_TYPE_R4 || t == MONO_TYPE_R8) {
6329 MONO_EMIT_NEW_DUMMY_INIT (cfg, dreg, OP_DUMMY_R8CONST);
6330 } else if ((t == MONO_TYPE_VALUETYPE) || (t == MONO_TYPE_TYPEDBYREF) ||
6331 ((t == MONO_TYPE_GENERICINST) && mono_type_generic_inst_is_valuetype (rtype))) {
6332 MONO_EMIT_NEW_DUMMY_INIT (cfg, dreg, OP_DUMMY_VZERO);
6333 } else if (((t == MONO_TYPE_VAR) || (t == MONO_TYPE_MVAR)) && mini_type_var_is_vt (rtype)) {
6334 MONO_EMIT_NEW_DUMMY_INIT (cfg, dreg, OP_DUMMY_VZERO);
6336 emit_init_rvar (cfg, dreg, rtype);
6340 /* If INIT is FALSE, emit dummy initialization statements to keep the IR valid */
6342 emit_init_local (MonoCompile *cfg, int local, MonoType *type, gboolean init)
6344 MonoInst *var = cfg->locals [local];
6345 if (COMPILE_SOFT_FLOAT (cfg)) {
6347 int reg = alloc_dreg (cfg, (MonoStackType)var->type);
6348 emit_init_rvar (cfg, reg, type);
6349 EMIT_NEW_LOCSTORE (cfg, store, local, cfg->cbb->last_ins);
6352 emit_init_rvar (cfg, var->dreg, type);
6354 emit_dummy_init_rvar (cfg, var->dreg, type);
6359 mini_inline_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **sp, guchar *ip, guint real_offset, gboolean inline_always)
6361 return inline_method (cfg, cmethod, fsig, sp, ip, real_offset, inline_always);
6367 * Return the cost of inlining CMETHOD, or zero if it should not be inlined.
6370 inline_method (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, MonoInst **sp,
6371 guchar *ip, guint real_offset, gboolean inline_always)
6374 MonoInst *ins, *rvar = NULL;
6375 MonoMethodHeader *cheader;
6376 MonoBasicBlock *ebblock, *sbblock;
6378 MonoMethod *prev_inlined_method;
6379 MonoInst **prev_locals, **prev_args;
6380 MonoType **prev_arg_types;
6381 guint prev_real_offset;
6382 GHashTable *prev_cbb_hash;
6383 MonoBasicBlock **prev_cil_offset_to_bb;
6384 MonoBasicBlock *prev_cbb;
6385 const unsigned char *prev_ip;
6386 unsigned char *prev_cil_start;
6387 guint32 prev_cil_offset_to_bb_len;
6388 MonoMethod *prev_current_method;
6389 MonoGenericContext *prev_generic_context;
6390 gboolean ret_var_set, prev_ret_var_set, prev_disable_inline, virtual_ = FALSE;
6392 g_assert (cfg->exception_type == MONO_EXCEPTION_NONE);
6394 #if (MONO_INLINE_CALLED_LIMITED_METHODS)
6395 if ((! inline_always) && ! check_inline_called_method_name_limit (cmethod))
6398 #if (MONO_INLINE_CALLER_LIMITED_METHODS)
6399 if ((! inline_always) && ! check_inline_caller_method_name_limit (cfg->method))
6404 fsig = mono_method_signature (cmethod);
6406 if (cfg->verbose_level > 2)
6407 printf ("INLINE START %p %s -> %s\n", cmethod, mono_method_full_name (cfg->method, TRUE), mono_method_full_name (cmethod, TRUE));
6409 if (!cmethod->inline_info) {
6410 cfg->stat_inlineable_methods++;
6411 cmethod->inline_info = 1;
6414 /* allocate local variables */
6415 cheader = mono_method_get_header_checked (cmethod, &error);
6417 if (inline_always) {
6418 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
6419 mono_error_move (&cfg->error, &error);
6421 mono_error_cleanup (&error);
6426 /*Must verify before creating locals as it can cause the JIT to assert.*/
6427 if (mono_compile_is_broken (cfg, cmethod, FALSE)) {
6428 mono_metadata_free_mh (cheader);
6432 /* allocate space to store the return value */
6433 if (!MONO_TYPE_IS_VOID (fsig->ret)) {
6434 rvar = mono_compile_create_var (cfg, fsig->ret, OP_LOCAL);
6437 prev_locals = cfg->locals;
6438 cfg->locals = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, cheader->num_locals * sizeof (MonoInst*));
6439 for (i = 0; i < cheader->num_locals; ++i)
6440 cfg->locals [i] = mono_compile_create_var (cfg, cheader->locals [i], OP_LOCAL);
6442 /* allocate start and end blocks */
6443 /* This is needed so if the inline is aborted, we can clean up */
6444 NEW_BBLOCK (cfg, sbblock);
6445 sbblock->real_offset = real_offset;
6447 NEW_BBLOCK (cfg, ebblock);
6448 ebblock->block_num = cfg->num_bblocks++;
6449 ebblock->real_offset = real_offset;
6451 prev_args = cfg->args;
6452 prev_arg_types = cfg->arg_types;
6453 prev_inlined_method = cfg->inlined_method;
6454 cfg->inlined_method = cmethod;
6455 cfg->ret_var_set = FALSE;
6456 cfg->inline_depth ++;
6457 prev_real_offset = cfg->real_offset;
6458 prev_cbb_hash = cfg->cbb_hash;
6459 prev_cil_offset_to_bb = cfg->cil_offset_to_bb;
6460 prev_cil_offset_to_bb_len = cfg->cil_offset_to_bb_len;
6461 prev_cil_start = cfg->cil_start;
6463 prev_cbb = cfg->cbb;
6464 prev_current_method = cfg->current_method;
6465 prev_generic_context = cfg->generic_context;
6466 prev_ret_var_set = cfg->ret_var_set;
6467 prev_disable_inline = cfg->disable_inline;
6469 if (ip && *ip == CEE_CALLVIRT && !(cmethod->flags & METHOD_ATTRIBUTE_STATIC))
6472 costs = mono_method_to_ir (cfg, cmethod, sbblock, ebblock, rvar, sp, real_offset, virtual_);
6474 ret_var_set = cfg->ret_var_set;
6476 cfg->inlined_method = prev_inlined_method;
6477 cfg->real_offset = prev_real_offset;
6478 cfg->cbb_hash = prev_cbb_hash;
6479 cfg->cil_offset_to_bb = prev_cil_offset_to_bb;
6480 cfg->cil_offset_to_bb_len = prev_cil_offset_to_bb_len;
6481 cfg->cil_start = prev_cil_start;
6483 cfg->locals = prev_locals;
6484 cfg->args = prev_args;
6485 cfg->arg_types = prev_arg_types;
6486 cfg->current_method = prev_current_method;
6487 cfg->generic_context = prev_generic_context;
6488 cfg->ret_var_set = prev_ret_var_set;
6489 cfg->disable_inline = prev_disable_inline;
6490 cfg->inline_depth --;
6492 if ((costs >= 0 && costs < 60) || inline_always || (costs >= 0 && (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_AGGRESSIVE_INLINING))) {
6493 if (cfg->verbose_level > 2)
6494 printf ("INLINE END %s -> %s\n", mono_method_full_name (cfg->method, TRUE), mono_method_full_name (cmethod, TRUE));
6496 cfg->stat_inlined_methods++;
6498 /* always add some code to avoid block split failures */
6499 MONO_INST_NEW (cfg, ins, OP_NOP);
6500 MONO_ADD_INS (prev_cbb, ins);
6502 prev_cbb->next_bb = sbblock;
6503 link_bblock (cfg, prev_cbb, sbblock);
6506 * Get rid of the begin and end bblocks if possible to aid local
6509 mono_merge_basic_blocks (cfg, prev_cbb, sbblock);
6511 if ((prev_cbb->out_count == 1) && (prev_cbb->out_bb [0]->in_count == 1) && (prev_cbb->out_bb [0] != ebblock))
6512 mono_merge_basic_blocks (cfg, prev_cbb, prev_cbb->out_bb [0]);
6514 if ((ebblock->in_count == 1) && ebblock->in_bb [0]->out_count == 1) {
6515 MonoBasicBlock *prev = ebblock->in_bb [0];
6517 if (prev->next_bb == ebblock) {
6518 mono_merge_basic_blocks (cfg, prev, ebblock);
6520 if ((prev_cbb->out_count == 1) && (prev_cbb->out_bb [0]->in_count == 1) && (prev_cbb->out_bb [0] == prev)) {
6521 mono_merge_basic_blocks (cfg, prev_cbb, prev);
6522 cfg->cbb = prev_cbb;
6525 /* There could be a bblock after 'prev', and making 'prev' the current bb could cause problems */
6530 * Its possible that the rvar is set in some prev bblock, but not in others.
6536 for (i = 0; i < ebblock->in_count; ++i) {
6537 bb = ebblock->in_bb [i];
6539 if (bb->last_ins && bb->last_ins->opcode == OP_NOT_REACHED) {
6542 emit_init_rvar (cfg, rvar->dreg, fsig->ret);
6552 * If the inlined method contains only a throw, then the ret var is not
6553 * set, so set it to a dummy value.
6556 emit_init_rvar (cfg, rvar->dreg, fsig->ret);
6558 EMIT_NEW_TEMPLOAD (cfg, ins, rvar->inst_c0);
6561 cfg->headers_to_free = g_slist_prepend_mempool (cfg->mempool, cfg->headers_to_free, cheader);
6564 if (cfg->verbose_level > 2)
6565 printf ("INLINE ABORTED %s (cost %d)\n", mono_method_full_name (cmethod, TRUE), costs);
6566 cfg->exception_type = MONO_EXCEPTION_NONE;
6568 /* This gets rid of the newly added bblocks */
6569 cfg->cbb = prev_cbb;
6571 cfg->headers_to_free = g_slist_prepend_mempool (cfg->mempool, cfg->headers_to_free, cheader);
6576 * Some of these comments may well be out-of-date.
6577 * Design decisions: we do a single pass over the IL code (and we do bblock
6578 * splitting/merging in the few cases when it's required: a back jump to an IL
6579 * address that was not already seen as bblock starting point).
6580 * Code is validated as we go (full verification is still better left to metadata/verify.c).
6581 * Complex operations are decomposed in simpler ones right away. We need to let the
6582 * arch-specific code peek and poke inside this process somehow (except when the
6583 * optimizations can take advantage of the full semantic info of coarse opcodes).
6584 * All the opcodes of the form opcode.s are 'normalized' to opcode.
6585 * MonoInst->opcode initially is the IL opcode or some simplification of that
6586 * (OP_LOAD, OP_STORE). The arch-specific code may rearrange it to an arch-specific
6587 * opcode with value bigger than OP_LAST.
6588 * At this point the IR can be handed over to an interpreter, a dumb code generator
6589 * or to the optimizing code generator that will translate it to SSA form.
6591 * Profiling directed optimizations.
6592 * We may compile by default with few or no optimizations and instrument the code
6593 * or the user may indicate what methods to optimize the most either in a config file
6594 * or through repeated runs where the compiler applies offline the optimizations to
6595 * each method and then decides if it was worth it.
6598 #define CHECK_TYPE(ins) if (!(ins)->type) UNVERIFIED
6599 #define CHECK_STACK(num) if ((sp - stack_start) < (num)) UNVERIFIED
6600 #define CHECK_STACK_OVF(num) if (((sp - stack_start) + (num)) > header->max_stack) UNVERIFIED
6601 #define CHECK_ARG(num) if ((unsigned)(num) >= (unsigned)num_args) UNVERIFIED
6602 #define CHECK_LOCAL(num) if ((unsigned)(num) >= (unsigned)header->num_locals) UNVERIFIED
6603 #define CHECK_OPSIZE(size) if (ip + size > end) UNVERIFIED
6604 #define CHECK_UNVERIFIABLE(cfg) if (cfg->unverifiable) UNVERIFIED
6605 #define CHECK_TYPELOAD(klass) if (!(klass) || mono_class_has_failure (klass)) TYPE_LOAD_ERROR ((klass))
6607 /* offset from br.s -> br like opcodes */
6608 #define BIG_BRANCH_OFFSET 13
6611 ip_in_bb (MonoCompile *cfg, MonoBasicBlock *bb, const guint8* ip)
6613 MonoBasicBlock *b = cfg->cil_offset_to_bb [ip - cfg->cil_start];
6615 return b == NULL || b == bb;
6619 get_basic_blocks (MonoCompile *cfg, MonoMethodHeader* header, guint real_offset, unsigned char *start, unsigned char *end, unsigned char **pos)
6621 unsigned char *ip = start;
6622 unsigned char *target;
6625 MonoBasicBlock *bblock;
6626 const MonoOpcode *opcode;
6629 cli_addr = ip - start;
6630 i = mono_opcode_value ((const guint8 **)&ip, end);
6633 opcode = &mono_opcodes [i];
6634 switch (opcode->argument) {
6635 case MonoInlineNone:
6638 case MonoInlineString:
6639 case MonoInlineType:
6640 case MonoInlineField:
6641 case MonoInlineMethod:
6644 case MonoShortInlineR:
6651 case MonoShortInlineVar:
6652 case MonoShortInlineI:
6655 case MonoShortInlineBrTarget:
6656 target = start + cli_addr + 2 + (signed char)ip [1];
6657 GET_BBLOCK (cfg, bblock, target);
6660 GET_BBLOCK (cfg, bblock, ip);
6662 case MonoInlineBrTarget:
6663 target = start + cli_addr + 5 + (gint32)read32 (ip + 1);
6664 GET_BBLOCK (cfg, bblock, target);
6667 GET_BBLOCK (cfg, bblock, ip);
6669 case MonoInlineSwitch: {
6670 guint32 n = read32 (ip + 1);
6673 cli_addr += 5 + 4 * n;
6674 target = start + cli_addr;
6675 GET_BBLOCK (cfg, bblock, target);
6677 for (j = 0; j < n; ++j) {
6678 target = start + cli_addr + (gint32)read32 (ip);
6679 GET_BBLOCK (cfg, bblock, target);
6689 g_assert_not_reached ();
6692 if (i == CEE_THROW) {
6693 unsigned char *bb_start = ip - 1;
6695 /* Find the start of the bblock containing the throw */
6697 while ((bb_start >= start) && !bblock) {
6698 bblock = cfg->cil_offset_to_bb [(bb_start) - start];
6702 bblock->out_of_line = 1;
6712 static inline MonoMethod *
6713 mini_get_method_allow_open (MonoMethod *m, guint32 token, MonoClass *klass, MonoGenericContext *context, MonoError *error)
6717 mono_error_init (error);
6719 if (m->wrapper_type != MONO_WRAPPER_NONE) {
6720 method = (MonoMethod *)mono_method_get_wrapper_data (m, token);
6722 method = mono_class_inflate_generic_method_checked (method, context, error);
6725 method = mono_get_method_checked (m->klass->image, token, klass, context, error);
6731 static inline MonoMethod *
6732 mini_get_method (MonoCompile *cfg, MonoMethod *m, guint32 token, MonoClass *klass, MonoGenericContext *context)
6735 MonoMethod *method = mini_get_method_allow_open (m, token, klass, context, cfg ? &cfg->error : &error);
6737 if (method && cfg && !cfg->gshared && mono_class_is_open_constructed_type (&method->klass->byval_arg)) {
6738 mono_error_set_bad_image (&cfg->error, cfg->method->klass->image, "Method with open type while not compiling gshared");
6742 if (!method && !cfg)
6743 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6748 static inline MonoClass*
6749 mini_get_class (MonoMethod *method, guint32 token, MonoGenericContext *context)
6754 if (method->wrapper_type != MONO_WRAPPER_NONE) {
6755 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
6757 klass = mono_class_inflate_generic_class_checked (klass, context, &error);
6758 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6761 klass = mono_class_get_and_inflate_typespec_checked (method->klass->image, token, context, &error);
6762 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6765 mono_class_init (klass);
6769 static inline MonoMethodSignature*
6770 mini_get_signature (MonoMethod *method, guint32 token, MonoGenericContext *context, MonoError *error)
6772 MonoMethodSignature *fsig;
6774 mono_error_init (error);
6775 if (method->wrapper_type != MONO_WRAPPER_NONE) {
6776 fsig = (MonoMethodSignature *)mono_method_get_wrapper_data (method, token);
6778 fsig = mono_metadata_parse_signature_checked (method->klass->image, token, error);
6779 return_val_if_nok (error, NULL);
6782 fsig = mono_inflate_generic_signature(fsig, context, error);
6788 throw_exception (void)
6790 static MonoMethod *method = NULL;
6793 MonoSecurityManager *secman = mono_security_manager_get_methods ();
6794 method = mono_class_get_method_from_name (secman->securitymanager, "ThrowException", 1);
6801 emit_throw_exception (MonoCompile *cfg, MonoException *ex)
6803 MonoMethod *thrower = throw_exception ();
6806 EMIT_NEW_PCONST (cfg, args [0], ex);
6807 mono_emit_method_call (cfg, thrower, args, NULL);
6811 * Return the original method is a wrapper is specified. We can only access
6812 * the custom attributes from the original method.
6815 get_original_method (MonoMethod *method)
6817 if (method->wrapper_type == MONO_WRAPPER_NONE)
6820 /* native code (which is like Critical) can call any managed method XXX FIXME XXX to validate all usages */
6821 if (method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED)
6824 /* in other cases we need to find the original method */
6825 return mono_marshal_method_from_wrapper (method);
6829 ensure_method_is_allowed_to_access_field (MonoCompile *cfg, MonoMethod *caller, MonoClassField *field)
6831 /* we can't get the coreclr security level on wrappers since they don't have the attributes */
6832 MonoException *ex = mono_security_core_clr_is_field_access_allowed (get_original_method (caller), field);
6834 emit_throw_exception (cfg, ex);
6838 ensure_method_is_allowed_to_call_method (MonoCompile *cfg, MonoMethod *caller, MonoMethod *callee)
6840 /* we can't get the coreclr security level on wrappers since they don't have the attributes */
6841 MonoException *ex = mono_security_core_clr_is_call_allowed (get_original_method (caller), callee);
6843 emit_throw_exception (cfg, ex);
6847 * Check that the IL instructions at ip are the array initialization
6848 * sequence and return the pointer to the data and the size.
6851 initialize_array_data (MonoMethod *method, gboolean aot, unsigned char *ip, MonoClass *klass, guint32 len, int *out_size, guint32 *out_field_token)
6854 * newarr[System.Int32]
6856 * ldtoken field valuetype ...
6857 * call void class [mscorlib]System.Runtime.CompilerServices.RuntimeHelpers::InitializeArray(class [mscorlib]System.Array, valuetype [mscorlib]System.RuntimeFieldHandle)
6859 if (ip [0] == CEE_DUP && ip [1] == CEE_LDTOKEN && ip [5] == 0x4 && ip [6] == CEE_CALL) {
6861 guint32 token = read32 (ip + 7);
6862 guint32 field_token = read32 (ip + 2);
6863 guint32 field_index = field_token & 0xffffff;
6865 const char *data_ptr;
6867 MonoMethod *cmethod;
6868 MonoClass *dummy_class;
6869 MonoClassField *field = mono_field_from_token_checked (method->klass->image, field_token, &dummy_class, NULL, &error);
6873 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6877 *out_field_token = field_token;
6879 cmethod = mini_get_method (NULL, method, token, NULL, NULL);
6882 if (strcmp (cmethod->name, "InitializeArray") || strcmp (cmethod->klass->name, "RuntimeHelpers") || cmethod->klass->image != mono_defaults.corlib)
6884 switch (mono_type_get_underlying_type (&klass->byval_arg)->type) {
6885 case MONO_TYPE_BOOLEAN:
6889 /* we need to swap on big endian, so punt. Should we handle R4 and R8 as well? */
6890 #if TARGET_BYTE_ORDER == G_LITTLE_ENDIAN
6891 case MONO_TYPE_CHAR:
6908 if (size > mono_type_size (field->type, &dummy_align))
6911 /*g_print ("optimized in %s: size: %d, numelems: %d\n", method->name, size, newarr->inst_newa_len->inst_c0);*/
6912 if (!image_is_dynamic (method->klass->image)) {
6913 field_index = read32 (ip + 2) & 0xffffff;
6914 mono_metadata_field_info (method->klass->image, field_index - 1, NULL, &rva, NULL);
6915 data_ptr = mono_image_rva_map (method->klass->image, rva);
6916 /*g_print ("field: 0x%08x, rva: %d, rva_ptr: %p\n", read32 (ip + 2), rva, data_ptr);*/
6917 /* for aot code we do the lookup on load */
6918 if (aot && data_ptr)
6919 return (const char *)GUINT_TO_POINTER (rva);
6921 /*FIXME is it possible to AOT a SRE assembly not meant to be saved? */
6923 data_ptr = mono_field_get_data (field);
6931 set_exception_type_from_invalid_il (MonoCompile *cfg, MonoMethod *method, unsigned char *ip)
6934 char *method_fname = mono_method_full_name (method, TRUE);
6936 MonoMethodHeader *header = mono_method_get_header_checked (method, &error);
6939 method_code = g_strdup_printf ("could not parse method body due to %s", mono_error_get_message (&error));
6940 mono_error_cleanup (&error);
6941 } else if (header->code_size == 0)
6942 method_code = g_strdup ("method body is empty.");
6944 method_code = mono_disasm_code_one (NULL, method, ip, NULL);
6945 mono_cfg_set_exception_invalid_program (cfg, g_strdup_printf ("Invalid IL code in %s: %s\n", method_fname, method_code));
6946 g_free (method_fname);
6947 g_free (method_code);
6948 cfg->headers_to_free = g_slist_prepend_mempool (cfg->mempool, cfg->headers_to_free, header);
6952 emit_stloc_ir (MonoCompile *cfg, MonoInst **sp, MonoMethodHeader *header, int n)
6955 guint32 opcode = mono_type_to_regmove (cfg, header->locals [n]);
6956 if ((opcode == OP_MOVE) && cfg->cbb->last_ins == sp [0] &&
6957 ((sp [0]->opcode == OP_ICONST) || (sp [0]->opcode == OP_I8CONST))) {
6958 /* Optimize reg-reg moves away */
6960 * Can't optimize other opcodes, since sp[0] might point to
6961 * the last ins of a decomposed opcode.
6963 sp [0]->dreg = (cfg)->locals [n]->dreg;
6965 EMIT_NEW_LOCSTORE (cfg, ins, n, *sp);
6970 * ldloca inhibits many optimizations so try to get rid of it in common
6973 static inline unsigned char *
6974 emit_optimized_ldloca_ir (MonoCompile *cfg, unsigned char *ip, unsigned char *end, int size)
6984 local = read16 (ip + 2);
6988 if (ip + 6 < end && (ip [0] == CEE_PREFIX1) && (ip [1] == CEE_INITOBJ) && ip_in_bb (cfg, cfg->cbb, ip + 1)) {
6989 /* From the INITOBJ case */
6990 token = read32 (ip + 2);
6991 klass = mini_get_class (cfg->current_method, token, cfg->generic_context);
6992 CHECK_TYPELOAD (klass);
6993 type = mini_get_underlying_type (&klass->byval_arg);
6994 emit_init_local (cfg, local, type, TRUE);
7002 emit_llvmonly_virtual_call (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, int context_used, MonoInst **sp)
7004 MonoInst *icall_args [16];
7005 MonoInst *call_target, *ins, *vtable_ins;
7006 int arg_reg, this_reg, vtable_reg;
7007 gboolean is_iface = mono_class_is_interface (cmethod->klass);
7008 gboolean is_gsharedvt = cfg->gsharedvt && mini_is_gsharedvt_variable_signature (fsig);
7009 gboolean variant_iface = FALSE;
7014 * In llvm-only mode, vtables contain function descriptors instead of
7015 * method addresses/trampolines.
7017 MONO_EMIT_NULL_CHECK (cfg, sp [0]->dreg);
7020 slot = mono_method_get_imt_slot (cmethod);
7022 slot = mono_method_get_vtable_index (cmethod);
7024 this_reg = sp [0]->dreg;
7026 if (is_iface && mono_class_has_variant_generic_params (cmethod->klass))
7027 variant_iface = TRUE;
7029 if (!fsig->generic_param_count && !is_iface && !is_gsharedvt) {
7031 * The simplest case, a normal virtual call.
7033 int slot_reg = alloc_preg (cfg);
7034 int addr_reg = alloc_preg (cfg);
7035 int arg_reg = alloc_preg (cfg);
7036 MonoBasicBlock *non_null_bb;
7038 vtable_reg = alloc_preg (cfg);
7039 EMIT_NEW_LOAD_MEMBASE (cfg, vtable_ins, OP_LOAD_MEMBASE, vtable_reg, this_reg, MONO_STRUCT_OFFSET (MonoObject, vtable));
7040 offset = MONO_STRUCT_OFFSET (MonoVTable, vtable) + (slot * SIZEOF_VOID_P);
7042 /* Load the vtable slot, which contains a function descriptor. */
7043 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, slot_reg, vtable_reg, offset);
7045 NEW_BBLOCK (cfg, non_null_bb);
7047 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, slot_reg, 0);
7048 cfg->cbb->last_ins->flags |= MONO_INST_LIKELY;
7049 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBNE_UN, non_null_bb);
7052 // FIXME: Make the wrapper use the preserveall cconv
7053 // FIXME: Use one icall per slot for small slot numbers ?
7054 icall_args [0] = vtable_ins;
7055 EMIT_NEW_ICONST (cfg, icall_args [1], slot);
7056 /* Make the icall return the vtable slot value to save some code space */
7057 ins = mono_emit_jit_icall (cfg, mono_init_vtable_slot, icall_args);
7058 ins->dreg = slot_reg;
7059 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, non_null_bb);
7062 MONO_START_BB (cfg, non_null_bb);
7063 /* Load the address + arg from the vtable slot */
7064 EMIT_NEW_LOAD_MEMBASE (cfg, call_target, OP_LOAD_MEMBASE, addr_reg, slot_reg, 0);
7065 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, arg_reg, slot_reg, SIZEOF_VOID_P);
7067 return emit_extra_arg_calli (cfg, fsig, sp, arg_reg, call_target);
7070 if (!fsig->generic_param_count && is_iface && !variant_iface && !is_gsharedvt) {
7072 * A simple interface call
7074 * We make a call through an imt slot to obtain the function descriptor we need to call.
7075 * The imt slot contains a function descriptor for a runtime function + arg.
7077 int slot_reg = alloc_preg (cfg);
7078 int addr_reg = alloc_preg (cfg);
7079 int arg_reg = alloc_preg (cfg);
7080 MonoInst *thunk_addr_ins, *thunk_arg_ins, *ftndesc_ins;
7082 vtable_reg = alloc_preg (cfg);
7083 EMIT_NEW_LOAD_MEMBASE (cfg, vtable_ins, OP_LOAD_MEMBASE, vtable_reg, this_reg, MONO_STRUCT_OFFSET (MonoObject, vtable));
7084 offset = ((gint32)slot - MONO_IMT_SIZE) * SIZEOF_VOID_P;
7087 * The slot is already initialized when the vtable is created so there is no need
7091 /* Load the imt slot, which contains a function descriptor. */
7092 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, slot_reg, vtable_reg, offset);
7094 /* Load the address + arg of the imt thunk from the imt slot */
7095 EMIT_NEW_LOAD_MEMBASE (cfg, thunk_addr_ins, OP_LOAD_MEMBASE, addr_reg, slot_reg, 0);
7096 EMIT_NEW_LOAD_MEMBASE (cfg, thunk_arg_ins, OP_LOAD_MEMBASE, arg_reg, slot_reg, SIZEOF_VOID_P);
7098 * IMT thunks in llvm-only mode are C functions which take an info argument
7099 * plus the imt method and return the ftndesc to call.
7101 icall_args [0] = thunk_arg_ins;
7102 icall_args [1] = emit_get_rgctx_method (cfg, context_used,
7103 cmethod, MONO_RGCTX_INFO_METHOD);
7104 ftndesc_ins = mono_emit_calli (cfg, helper_sig_llvmonly_imt_trampoline, icall_args, thunk_addr_ins, NULL, NULL);
7106 return emit_llvmonly_calli (cfg, fsig, sp, ftndesc_ins);
7109 if ((fsig->generic_param_count || variant_iface) && !is_gsharedvt) {
7111 * This is similar to the interface case, the vtable slot points to an imt thunk which is
7112 * dynamically extended as more instantiations are discovered.
7113 * This handles generic virtual methods both on classes and interfaces.
7115 int slot_reg = alloc_preg (cfg);
7116 int addr_reg = alloc_preg (cfg);
7117 int arg_reg = alloc_preg (cfg);
7118 int ftndesc_reg = alloc_preg (cfg);
7119 MonoInst *thunk_addr_ins, *thunk_arg_ins, *ftndesc_ins;
7120 MonoBasicBlock *slowpath_bb, *end_bb;
7122 NEW_BBLOCK (cfg, slowpath_bb);
7123 NEW_BBLOCK (cfg, end_bb);
7125 vtable_reg = alloc_preg (cfg);
7126 EMIT_NEW_LOAD_MEMBASE (cfg, vtable_ins, OP_LOAD_MEMBASE, vtable_reg, this_reg, MONO_STRUCT_OFFSET (MonoObject, vtable));
7128 offset = ((gint32)slot - MONO_IMT_SIZE) * SIZEOF_VOID_P;
7130 offset = MONO_STRUCT_OFFSET (MonoVTable, vtable) + (slot * SIZEOF_VOID_P);
7132 /* Load the slot, which contains a function descriptor. */
7133 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, slot_reg, vtable_reg, offset);
7135 /* These slots are not initialized, so fall back to the slow path until they are initialized */
7136 /* That happens when mono_method_add_generic_virtual_invocation () creates an IMT thunk */
7137 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, slot_reg, 0);
7138 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, slowpath_bb);
7141 /* Same as with iface calls */
7142 EMIT_NEW_LOAD_MEMBASE (cfg, thunk_addr_ins, OP_LOAD_MEMBASE, addr_reg, slot_reg, 0);
7143 EMIT_NEW_LOAD_MEMBASE (cfg, thunk_arg_ins, OP_LOAD_MEMBASE, arg_reg, slot_reg, SIZEOF_VOID_P);
7144 icall_args [0] = thunk_arg_ins;
7145 icall_args [1] = emit_get_rgctx_method (cfg, context_used,
7146 cmethod, MONO_RGCTX_INFO_METHOD);
7147 ftndesc_ins = mono_emit_calli (cfg, helper_sig_llvmonly_imt_trampoline, icall_args, thunk_addr_ins, NULL, NULL);
7148 ftndesc_ins->dreg = ftndesc_reg;
7150 * Unlike normal iface calls, these imt thunks can return NULL, i.e. when they are passed an instantiation
7151 * they don't know about yet. Fall back to the slowpath in that case.
7153 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, ftndesc_reg, 0);
7154 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, slowpath_bb);
7156 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
7159 MONO_START_BB (cfg, slowpath_bb);
7160 icall_args [0] = vtable_ins;
7161 EMIT_NEW_ICONST (cfg, icall_args [1], slot);
7162 icall_args [2] = emit_get_rgctx_method (cfg, context_used,
7163 cmethod, MONO_RGCTX_INFO_METHOD);
7165 ftndesc_ins = mono_emit_jit_icall (cfg, mono_resolve_generic_virtual_iface_call, icall_args);
7167 ftndesc_ins = mono_emit_jit_icall (cfg, mono_resolve_generic_virtual_call, icall_args);
7168 ftndesc_ins->dreg = ftndesc_reg;
7169 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
7172 MONO_START_BB (cfg, end_bb);
7173 return emit_llvmonly_calli (cfg, fsig, sp, ftndesc_ins);
7177 * Non-optimized cases
7179 icall_args [0] = sp [0];
7180 EMIT_NEW_ICONST (cfg, icall_args [1], slot);
7182 icall_args [2] = emit_get_rgctx_method (cfg, context_used,
7183 cmethod, MONO_RGCTX_INFO_METHOD);
7185 arg_reg = alloc_preg (cfg);
7186 MONO_EMIT_NEW_PCONST (cfg, arg_reg, NULL);
7187 EMIT_NEW_VARLOADA_VREG (cfg, icall_args [3], arg_reg, &mono_defaults.int_class->byval_arg);
7189 g_assert (is_gsharedvt);
7191 call_target = mono_emit_jit_icall (cfg, mono_resolve_iface_call_gsharedvt, icall_args);
7193 call_target = mono_emit_jit_icall (cfg, mono_resolve_vcall_gsharedvt, icall_args);
7196 * Pass the extra argument even if the callee doesn't receive it, most
7197 * calling conventions allow this.
7199 return emit_extra_arg_calli (cfg, fsig, sp, arg_reg, call_target);
7203 is_exception_class (MonoClass *klass)
7206 if (klass == mono_defaults.exception_class)
7208 klass = klass->parent;
7214 * is_jit_optimizer_disabled:
7216 * Determine whenever M's assembly has a DebuggableAttribute with the
7217 * IsJITOptimizerDisabled flag set.
7220 is_jit_optimizer_disabled (MonoMethod *m)
7223 MonoAssembly *ass = m->klass->image->assembly;
7224 MonoCustomAttrInfo* attrs;
7227 gboolean val = FALSE;
7230 if (ass->jit_optimizer_disabled_inited)
7231 return ass->jit_optimizer_disabled;
7233 klass = mono_class_try_get_debuggable_attribute_class ();
7237 ass->jit_optimizer_disabled = FALSE;
7238 mono_memory_barrier ();
7239 ass->jit_optimizer_disabled_inited = TRUE;
7243 attrs = mono_custom_attrs_from_assembly_checked (ass, FALSE, &error);
7244 mono_error_cleanup (&error); /* FIXME don't swallow the error */
7246 for (i = 0; i < attrs->num_attrs; ++i) {
7247 MonoCustomAttrEntry *attr = &attrs->attrs [i];
7249 MonoMethodSignature *sig;
7251 if (!attr->ctor || attr->ctor->klass != klass)
7253 /* Decode the attribute. See reflection.c */
7254 p = (const char*)attr->data;
7255 g_assert (read16 (p) == 0x0001);
7258 // FIXME: Support named parameters
7259 sig = mono_method_signature (attr->ctor);
7260 if (sig->param_count != 2 || sig->params [0]->type != MONO_TYPE_BOOLEAN || sig->params [1]->type != MONO_TYPE_BOOLEAN)
7262 /* Two boolean arguments */
7266 mono_custom_attrs_free (attrs);
7269 ass->jit_optimizer_disabled = val;
7270 mono_memory_barrier ();
7271 ass->jit_optimizer_disabled_inited = TRUE;
7277 is_supported_tail_call (MonoCompile *cfg, MonoMethod *method, MonoMethod *cmethod, MonoMethodSignature *fsig, int call_opcode)
7279 gboolean supported_tail_call;
7282 supported_tail_call = mono_arch_tail_call_supported (cfg, mono_method_signature (method), mono_method_signature (cmethod));
7284 for (i = 0; i < fsig->param_count; ++i) {
7285 if (fsig->params [i]->byref || fsig->params [i]->type == MONO_TYPE_PTR || fsig->params [i]->type == MONO_TYPE_FNPTR)
7286 /* These can point to the current method's stack */
7287 supported_tail_call = FALSE;
7289 if (fsig->hasthis && cmethod->klass->valuetype)
7290 /* this might point to the current method's stack */
7291 supported_tail_call = FALSE;
7292 if (cmethod->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)
7293 supported_tail_call = FALSE;
7294 if (cfg->method->save_lmf)
7295 supported_tail_call = FALSE;
7296 if (cmethod->wrapper_type && cmethod->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
7297 supported_tail_call = FALSE;
7298 if (call_opcode != CEE_CALL)
7299 supported_tail_call = FALSE;
7301 /* Debugging support */
7303 if (supported_tail_call) {
7304 if (!mono_debug_count ())
7305 supported_tail_call = FALSE;
7309 return supported_tail_call;
7315 * Handle calls made to ctors from NEWOBJ opcodes.
7318 handle_ctor_call (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsig, int context_used,
7319 MonoInst **sp, guint8 *ip, int *inline_costs)
7321 MonoInst *vtable_arg = NULL, *callvirt_this_arg = NULL, *ins;
7323 if (cmethod->klass->valuetype && mono_class_generic_sharing_enabled (cmethod->klass) &&
7324 mono_method_is_generic_sharable (cmethod, TRUE)) {
7325 if (cmethod->is_inflated && mono_method_get_context (cmethod)->method_inst) {
7326 mono_class_vtable (cfg->domain, cmethod->klass);
7327 CHECK_TYPELOAD (cmethod->klass);
7329 vtable_arg = emit_get_rgctx_method (cfg, context_used,
7330 cmethod, MONO_RGCTX_INFO_METHOD_RGCTX);
7333 vtable_arg = mini_emit_get_rgctx_klass (cfg, context_used,
7334 cmethod->klass, MONO_RGCTX_INFO_VTABLE);
7336 MonoVTable *vtable = mono_class_vtable (cfg->domain, cmethod->klass);
7338 CHECK_TYPELOAD (cmethod->klass);
7339 EMIT_NEW_VTABLECONST (cfg, vtable_arg, vtable);
7344 /* Avoid virtual calls to ctors if possible */
7345 if (mono_class_is_marshalbyref (cmethod->klass))
7346 callvirt_this_arg = sp [0];
7348 if (cmethod && (cfg->opt & MONO_OPT_INTRINS) && (ins = mini_emit_inst_for_ctor (cfg, cmethod, fsig, sp))) {
7349 g_assert (MONO_TYPE_IS_VOID (fsig->ret));
7350 CHECK_CFG_EXCEPTION;
7351 } else if ((cfg->opt & MONO_OPT_INLINE) && cmethod && !context_used && !vtable_arg &&
7352 mono_method_check_inlining (cfg, cmethod) &&
7353 !mono_class_is_subclass_of (cmethod->klass, mono_defaults.exception_class, FALSE)) {
7356 if ((costs = inline_method (cfg, cmethod, fsig, sp, ip, cfg->real_offset, FALSE))) {
7357 cfg->real_offset += 5;
7359 *inline_costs += costs - 5;
7361 INLINE_FAILURE ("inline failure");
7362 // FIXME-VT: Clean this up
7363 if (cfg->gsharedvt && mini_is_gsharedvt_signature (fsig))
7364 GSHAREDVT_FAILURE(*ip);
7365 mono_emit_method_call_full (cfg, cmethod, fsig, FALSE, sp, callvirt_this_arg, NULL, NULL);
7367 } else if (cfg->gsharedvt && mini_is_gsharedvt_signature (fsig)) {
7370 addr = emit_get_rgctx_gsharedvt_call (cfg, context_used, fsig, cmethod, MONO_RGCTX_INFO_METHOD_GSHAREDVT_OUT_TRAMPOLINE);
7372 if (cfg->llvm_only) {
7373 // FIXME: Avoid initializing vtable_arg
7374 emit_llvmonly_calli (cfg, fsig, sp, addr);
7376 mono_emit_calli (cfg, fsig, sp, addr, NULL, vtable_arg);
7378 } else if (context_used &&
7379 ((!mono_method_is_generic_sharable_full (cmethod, TRUE, FALSE, FALSE) ||
7380 !mono_class_generic_sharing_enabled (cmethod->klass)) || cfg->gsharedvt)) {
7381 MonoInst *cmethod_addr;
7383 /* Generic calls made out of gsharedvt methods cannot be patched, so use an indirect call */
7385 if (cfg->llvm_only) {
7386 MonoInst *addr = emit_get_rgctx_method (cfg, context_used, cmethod,
7387 MONO_RGCTX_INFO_GENERIC_METHOD_CODE);
7388 emit_llvmonly_calli (cfg, fsig, sp, addr);
7390 cmethod_addr = emit_get_rgctx_method (cfg, context_used,
7391 cmethod, MONO_RGCTX_INFO_GENERIC_METHOD_CODE);
7393 mono_emit_calli (cfg, fsig, sp, cmethod_addr, NULL, vtable_arg);
7396 INLINE_FAILURE ("ctor call");
7397 ins = mono_emit_method_call_full (cfg, cmethod, fsig, FALSE, sp,
7398 callvirt_this_arg, NULL, vtable_arg);
7405 emit_setret (MonoCompile *cfg, MonoInst *val)
7407 MonoType *ret_type = mini_get_underlying_type (mono_method_signature (cfg->method)->ret);
7410 if (mini_type_to_stind (cfg, ret_type) == CEE_STOBJ) {
7413 if (!cfg->vret_addr) {
7414 EMIT_NEW_VARSTORE (cfg, ins, cfg->ret, ret_type, val);
7416 EMIT_NEW_RETLOADA (cfg, ret_addr);
7418 EMIT_NEW_STORE_MEMBASE (cfg, ins, OP_STOREV_MEMBASE, ret_addr->dreg, 0, val->dreg);
7419 ins->klass = mono_class_from_mono_type (ret_type);
7422 #ifdef MONO_ARCH_SOFT_FLOAT_FALLBACK
7423 if (COMPILE_SOFT_FLOAT (cfg) && !ret_type->byref && ret_type->type == MONO_TYPE_R4) {
7424 MonoInst *iargs [1];
7428 conv = mono_emit_jit_icall (cfg, mono_fload_r4_arg, iargs);
7429 mono_arch_emit_setret (cfg, cfg->method, conv);
7431 mono_arch_emit_setret (cfg, cfg->method, val);
7434 mono_arch_emit_setret (cfg, cfg->method, val);
7440 * mono_method_to_ir:
7442 * Translate the .net IL into linear IR.
7444 * @start_bblock: if not NULL, the starting basic block, used during inlining.
7445 * @end_bblock: if not NULL, the ending basic block, used during inlining.
7446 * @return_var: if not NULL, the place where the return value is stored, used during inlining.
7447 * @inline_args: if not NULL, contains the arguments to the inline call
7448 * @inline_offset: if not zero, the real offset from the inline call, or zero otherwise.
7449 * @is_virtual_call: whether this method is being called as a result of a call to callvirt
7451 * This method is used to turn ECMA IL into Mono's internal Linear IR
7452 * reprensetation. It is used both for entire methods, as well as
7453 * inlining existing methods. In the former case, the @start_bblock,
7454 * @end_bblock, @return_var, @inline_args are all set to NULL, and the
7455 * inline_offset is set to zero.
7457 * Returns: the inline cost, or -1 if there was an error processing this method.
7460 mono_method_to_ir (MonoCompile *cfg, MonoMethod *method, MonoBasicBlock *start_bblock, MonoBasicBlock *end_bblock,
7461 MonoInst *return_var, MonoInst **inline_args,
7462 guint inline_offset, gboolean is_virtual_call)
7465 MonoInst *ins, **sp, **stack_start;
7466 MonoBasicBlock *tblock = NULL, *init_localsbb = NULL;
7467 MonoSimpleBasicBlock *bb = NULL, *original_bb = NULL;
7468 MonoMethod *cmethod, *method_definition;
7469 MonoInst **arg_array;
7470 MonoMethodHeader *header;
7472 guint32 token, ins_flag;
7474 MonoClass *constrained_class = NULL;
7475 unsigned char *ip, *end, *target, *err_pos;
7476 MonoMethodSignature *sig;
7477 MonoGenericContext *generic_context = NULL;
7478 MonoGenericContainer *generic_container = NULL;
7479 MonoType **param_types;
7480 int i, n, start_new_bblock, dreg;
7481 int num_calls = 0, inline_costs = 0;
7482 int breakpoint_id = 0;
7484 GSList *class_inits = NULL;
7485 gboolean dont_verify, dont_verify_stloc, readonly = FALSE;
7487 gboolean init_locals, seq_points, skip_dead_blocks;
7488 gboolean sym_seq_points = FALSE;
7489 MonoDebugMethodInfo *minfo;
7490 MonoBitSet *seq_point_locs = NULL;
7491 MonoBitSet *seq_point_set_locs = NULL;
7493 cfg->disable_inline = is_jit_optimizer_disabled (method);
7495 /* serialization and xdomain stuff may need access to private fields and methods */
7496 dont_verify = method->klass->image->assembly->corlib_internal? TRUE: FALSE;
7497 dont_verify |= method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE;
7498 dont_verify |= method->wrapper_type == MONO_WRAPPER_XDOMAIN_DISPATCH;
7499 dont_verify |= method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE; /* bug #77896 */
7500 dont_verify |= method->wrapper_type == MONO_WRAPPER_COMINTEROP;
7501 dont_verify |= method->wrapper_type == MONO_WRAPPER_COMINTEROP_INVOKE;
7503 /* still some type unsafety issues in marshal wrappers... (unknown is PtrToStructure) */
7504 dont_verify_stloc = method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE;
7505 dont_verify_stloc |= method->wrapper_type == MONO_WRAPPER_UNKNOWN;
7506 dont_verify_stloc |= method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED;
7507 dont_verify_stloc |= method->wrapper_type == MONO_WRAPPER_STELEMREF;
7509 image = method->klass->image;
7510 header = mono_method_get_header_checked (method, &cfg->error);
7512 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
7513 goto exception_exit;
7515 cfg->headers_to_free = g_slist_prepend_mempool (cfg->mempool, cfg->headers_to_free, header);
7518 generic_container = mono_method_get_generic_container (method);
7519 sig = mono_method_signature (method);
7520 num_args = sig->hasthis + sig->param_count;
7521 ip = (unsigned char*)header->code;
7522 cfg->cil_start = ip;
7523 end = ip + header->code_size;
7524 cfg->stat_cil_code_size += header->code_size;
7526 seq_points = cfg->gen_seq_points && cfg->method == method;
7528 if (method->wrapper_type == MONO_WRAPPER_NATIVE_TO_MANAGED) {
7529 /* We could hit a seq point before attaching to the JIT (#8338) */
7533 if (cfg->gen_sdb_seq_points && cfg->method == method) {
7534 minfo = mono_debug_lookup_method (method);
7536 MonoSymSeqPoint *sps;
7537 int i, n_il_offsets;
7539 mono_debug_get_seq_points (minfo, NULL, NULL, NULL, &sps, &n_il_offsets);
7540 seq_point_locs = mono_bitset_mem_new (mono_mempool_alloc0 (cfg->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
7541 seq_point_set_locs = mono_bitset_mem_new (mono_mempool_alloc0 (cfg->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
7542 sym_seq_points = TRUE;
7543 for (i = 0; i < n_il_offsets; ++i) {
7544 if (sps [i].il_offset < header->code_size)
7545 mono_bitset_set_fast (seq_point_locs, sps [i].il_offset);
7548 } else if (!method->wrapper_type && !method->dynamic && mono_debug_image_has_debug_info (method->klass->image)) {
7549 /* Methods without line number info like auto-generated property accessors */
7550 seq_point_locs = mono_bitset_mem_new (mono_mempool_alloc0 (cfg->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
7551 seq_point_set_locs = mono_bitset_mem_new (mono_mempool_alloc0 (cfg->mempool, mono_bitset_alloc_size (header->code_size, 0)), header->code_size, 0);
7552 sym_seq_points = TRUE;
7557 * Methods without init_locals set could cause asserts in various passes
7558 * (#497220). To work around this, we emit dummy initialization opcodes
7559 * (OP_DUMMY_ICONST etc.) which generate no code. These are only supported
7560 * on some platforms.
7562 if ((cfg->opt & MONO_OPT_UNSAFE) && cfg->backend->have_dummy_init)
7563 init_locals = header->init_locals;
7567 method_definition = method;
7568 while (method_definition->is_inflated) {
7569 MonoMethodInflated *imethod = (MonoMethodInflated *) method_definition;
7570 method_definition = imethod->declaring;
7573 /* SkipVerification is not allowed if core-clr is enabled */
7574 if (!dont_verify && mini_assembly_can_skip_verification (cfg->domain, method)) {
7576 dont_verify_stloc = TRUE;
7579 if (sig->is_inflated)
7580 generic_context = mono_method_get_context (method);
7581 else if (generic_container)
7582 generic_context = &generic_container->context;
7583 cfg->generic_context = generic_context;
7586 g_assert (!sig->has_type_parameters);
7588 if (sig->generic_param_count && method->wrapper_type == MONO_WRAPPER_NONE) {
7589 g_assert (method->is_inflated);
7590 g_assert (mono_method_get_context (method)->method_inst);
7592 if (method->is_inflated && mono_method_get_context (method)->method_inst)
7593 g_assert (sig->generic_param_count);
7595 if (cfg->method == method) {
7596 cfg->real_offset = 0;
7598 cfg->real_offset = inline_offset;
7601 cfg->cil_offset_to_bb = (MonoBasicBlock **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoBasicBlock*) * header->code_size);
7602 cfg->cil_offset_to_bb_len = header->code_size;
7604 cfg->current_method = method;
7606 if (cfg->verbose_level > 2)
7607 printf ("method to IR %s\n", mono_method_full_name (method, TRUE));
7609 param_types = (MonoType **)mono_mempool_alloc (cfg->mempool, sizeof (MonoType*) * num_args);
7611 param_types [0] = method->klass->valuetype?&method->klass->this_arg:&method->klass->byval_arg;
7612 for (n = 0; n < sig->param_count; ++n)
7613 param_types [n + sig->hasthis] = sig->params [n];
7614 cfg->arg_types = param_types;
7616 cfg->dont_inline = g_list_prepend (cfg->dont_inline, method);
7617 if (cfg->method == method) {
7619 if (cfg->prof_options & MONO_PROFILE_INS_COVERAGE)
7620 cfg->coverage_info = mono_profiler_coverage_alloc (cfg->method, header->code_size);
7623 NEW_BBLOCK (cfg, start_bblock);
7624 cfg->bb_entry = start_bblock;
7625 start_bblock->cil_code = NULL;
7626 start_bblock->cil_length = 0;
7629 NEW_BBLOCK (cfg, end_bblock);
7630 cfg->bb_exit = end_bblock;
7631 end_bblock->cil_code = NULL;
7632 end_bblock->cil_length = 0;
7633 end_bblock->flags |= BB_INDIRECT_JUMP_TARGET;
7634 g_assert (cfg->num_bblocks == 2);
7636 arg_array = cfg->args;
7638 if (header->num_clauses) {
7639 cfg->spvars = g_hash_table_new (NULL, NULL);
7640 cfg->exvars = g_hash_table_new (NULL, NULL);
7642 /* handle exception clauses */
7643 for (i = 0; i < header->num_clauses; ++i) {
7644 MonoBasicBlock *try_bb;
7645 MonoExceptionClause *clause = &header->clauses [i];
7646 GET_BBLOCK (cfg, try_bb, ip + clause->try_offset);
7648 try_bb->real_offset = clause->try_offset;
7649 try_bb->try_start = TRUE;
7650 try_bb->region = ((i + 1) << 8) | clause->flags;
7651 GET_BBLOCK (cfg, tblock, ip + clause->handler_offset);
7652 tblock->real_offset = clause->handler_offset;
7653 tblock->flags |= BB_EXCEPTION_HANDLER;
7656 * Linking the try block with the EH block hinders inlining as we won't be able to
7657 * merge the bblocks from inlining and produce an artificial hole for no good reason.
7659 if (COMPILE_LLVM (cfg))
7660 link_bblock (cfg, try_bb, tblock);
7662 if (*(ip + clause->handler_offset) == CEE_POP)
7663 tblock->flags |= BB_EXCEPTION_DEAD_OBJ;
7665 if (clause->flags == MONO_EXCEPTION_CLAUSE_FINALLY ||
7666 clause->flags == MONO_EXCEPTION_CLAUSE_FILTER ||
7667 clause->flags == MONO_EXCEPTION_CLAUSE_FAULT) {
7668 MONO_INST_NEW (cfg, ins, OP_START_HANDLER);
7669 MONO_ADD_INS (tblock, ins);
7671 if (seq_points && clause->flags != MONO_EXCEPTION_CLAUSE_FINALLY && clause->flags != MONO_EXCEPTION_CLAUSE_FILTER) {
7672 /* finally clauses already have a seq point */
7673 /* seq points for filter clauses are emitted below */
7674 NEW_SEQ_POINT (cfg, ins, clause->handler_offset, TRUE);
7675 MONO_ADD_INS (tblock, ins);
7678 /* todo: is a fault block unsafe to optimize? */
7679 if (clause->flags == MONO_EXCEPTION_CLAUSE_FAULT)
7680 tblock->flags |= BB_EXCEPTION_UNSAFE;
7683 /*printf ("clause try IL_%04x to IL_%04x handler %d at IL_%04x to IL_%04x\n", clause->try_offset, clause->try_offset + clause->try_len, clause->flags, clause->handler_offset, clause->handler_offset + clause->handler_len);
7685 printf ("%s", mono_disasm_code_one (NULL, method, p, &p));
7687 /* catch and filter blocks get the exception object on the stack */
7688 if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE ||
7689 clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
7691 /* mostly like handle_stack_args (), but just sets the input args */
7692 /* printf ("handling clause at IL_%04x\n", clause->handler_offset); */
7693 tblock->in_scount = 1;
7694 tblock->in_stack = (MonoInst **)mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
7695 tblock->in_stack [0] = mono_create_exvar_for_offset (cfg, clause->handler_offset);
7699 #ifdef MONO_CONTEXT_SET_LLVM_EXC_REG
7700 /* The EH code passes in the exception in a register to both JITted and LLVM compiled code */
7701 if (!cfg->compile_llvm) {
7702 MONO_INST_NEW (cfg, ins, OP_GET_EX_OBJ);
7703 ins->dreg = tblock->in_stack [0]->dreg;
7704 MONO_ADD_INS (tblock, ins);
7707 MonoInst *dummy_use;
7710 * Add a dummy use for the exvar so its liveness info will be
7713 EMIT_NEW_DUMMY_USE (cfg, dummy_use, tblock->in_stack [0]);
7716 if (seq_points && clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
7717 NEW_SEQ_POINT (cfg, ins, clause->handler_offset, TRUE);
7718 MONO_ADD_INS (tblock, ins);
7721 if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
7722 GET_BBLOCK (cfg, tblock, ip + clause->data.filter_offset);
7723 tblock->flags |= BB_EXCEPTION_HANDLER;
7724 tblock->real_offset = clause->data.filter_offset;
7725 tblock->in_scount = 1;
7726 tblock->in_stack = (MonoInst **)mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*));
7727 /* The filter block shares the exvar with the handler block */
7728 tblock->in_stack [0] = mono_create_exvar_for_offset (cfg, clause->handler_offset);
7729 MONO_INST_NEW (cfg, ins, OP_START_HANDLER);
7730 MONO_ADD_INS (tblock, ins);
7734 if (clause->flags != MONO_EXCEPTION_CLAUSE_FILTER &&
7735 clause->data.catch_class &&
7737 mono_class_check_context_used (clause->data.catch_class)) {
7739 * In shared generic code with catch
7740 * clauses containing type variables
7741 * the exception handling code has to
7742 * be able to get to the rgctx.
7743 * Therefore we have to make sure that
7744 * the vtable/mrgctx argument (for
7745 * static or generic methods) or the
7746 * "this" argument (for non-static
7747 * methods) are live.
7749 if ((method->flags & METHOD_ATTRIBUTE_STATIC) ||
7750 mini_method_get_context (method)->method_inst ||
7751 method->klass->valuetype) {
7752 mono_get_vtable_var (cfg);
7754 MonoInst *dummy_use;
7756 EMIT_NEW_DUMMY_USE (cfg, dummy_use, arg_array [0]);
7761 arg_array = (MonoInst **) alloca (sizeof (MonoInst *) * num_args);
7762 cfg->cbb = start_bblock;
7763 cfg->args = arg_array;
7764 mono_save_args (cfg, sig, inline_args);
7767 /* FIRST CODE BLOCK */
7768 NEW_BBLOCK (cfg, tblock);
7769 tblock->cil_code = ip;
7773 ADD_BBLOCK (cfg, tblock);
7775 if (cfg->method == method) {
7776 breakpoint_id = mono_debugger_method_has_breakpoint (method);
7777 if (breakpoint_id) {
7778 MONO_INST_NEW (cfg, ins, OP_BREAK);
7779 MONO_ADD_INS (cfg->cbb, ins);
7783 /* we use a separate basic block for the initialization code */
7784 NEW_BBLOCK (cfg, init_localsbb);
7785 if (cfg->method == method)
7786 cfg->bb_init = init_localsbb;
7787 init_localsbb->real_offset = cfg->real_offset;
7788 start_bblock->next_bb = init_localsbb;
7789 init_localsbb->next_bb = cfg->cbb;
7790 link_bblock (cfg, start_bblock, init_localsbb);
7791 link_bblock (cfg, init_localsbb, cfg->cbb);
7793 cfg->cbb = init_localsbb;
7795 if (cfg->gsharedvt && cfg->method == method) {
7796 MonoGSharedVtMethodInfo *info;
7797 MonoInst *var, *locals_var;
7800 info = (MonoGSharedVtMethodInfo *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoGSharedVtMethodInfo));
7801 info->method = cfg->method;
7802 info->count_entries = 16;
7803 info->entries = (MonoRuntimeGenericContextInfoTemplate *)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoRuntimeGenericContextInfoTemplate) * info->count_entries);
7804 cfg->gsharedvt_info = info;
7806 var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
7807 /* prevent it from being register allocated */
7808 //var->flags |= MONO_INST_VOLATILE;
7809 cfg->gsharedvt_info_var = var;
7811 ins = emit_get_rgctx_gsharedvt_method (cfg, mini_method_check_context_used (cfg, method), method, info);
7812 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, var->dreg, ins->dreg);
7814 /* Allocate locals */
7815 locals_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
7816 /* prevent it from being register allocated */
7817 //locals_var->flags |= MONO_INST_VOLATILE;
7818 cfg->gsharedvt_locals_var = locals_var;
7820 dreg = alloc_ireg (cfg);
7821 MONO_EMIT_NEW_LOAD_MEMBASE_OP (cfg, OP_LOADI4_MEMBASE, dreg, var->dreg, MONO_STRUCT_OFFSET (MonoGSharedVtMethodRuntimeInfo, locals_size));
7823 MONO_INST_NEW (cfg, ins, OP_LOCALLOC);
7824 ins->dreg = locals_var->dreg;
7826 MONO_ADD_INS (cfg->cbb, ins);
7827 cfg->gsharedvt_locals_var_ins = ins;
7829 cfg->flags |= MONO_CFG_HAS_ALLOCA;
7832 ins->flags |= MONO_INST_INIT;
7836 if (mono_security_core_clr_enabled ()) {
7837 /* check if this is native code, e.g. an icall or a p/invoke */
7838 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
7839 MonoMethod *wrapped = mono_marshal_method_from_wrapper (method);
7841 gboolean pinvk = (wrapped->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL);
7842 gboolean icall = (wrapped->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL);
7844 /* if this ia a native call then it can only be JITted from platform code */
7845 if ((icall || pinvk) && method->klass && method->klass->image) {
7846 if (!mono_security_core_clr_is_platform_image (method->klass->image)) {
7847 MonoException *ex = icall ? mono_get_exception_security () :
7848 mono_get_exception_method_access ();
7849 emit_throw_exception (cfg, ex);
7856 CHECK_CFG_EXCEPTION;
7858 if (header->code_size == 0)
7861 if (get_basic_blocks (cfg, header, cfg->real_offset, ip, end, &err_pos)) {
7866 if (cfg->method == method)
7867 mono_debug_init_method (cfg, cfg->cbb, breakpoint_id);
7869 for (n = 0; n < header->num_locals; ++n) {
7870 if (header->locals [n]->type == MONO_TYPE_VOID && !header->locals [n]->byref)
7875 /* We force the vtable variable here for all shared methods
7876 for the possibility that they might show up in a stack
7877 trace where their exact instantiation is needed. */
7878 if (cfg->gshared && method == cfg->method) {
7879 if ((method->flags & METHOD_ATTRIBUTE_STATIC) ||
7880 mini_method_get_context (method)->method_inst ||
7881 method->klass->valuetype) {
7882 mono_get_vtable_var (cfg);
7884 /* FIXME: Is there a better way to do this?
7885 We need the variable live for the duration
7886 of the whole method. */
7887 cfg->args [0]->flags |= MONO_INST_VOLATILE;
7891 /* add a check for this != NULL to inlined methods */
7892 if (is_virtual_call) {
7895 NEW_ARGLOAD (cfg, arg_ins, 0);
7896 MONO_ADD_INS (cfg->cbb, arg_ins);
7897 MONO_EMIT_NEW_CHECK_THIS (cfg, arg_ins->dreg);
7900 skip_dead_blocks = !dont_verify;
7901 if (skip_dead_blocks) {
7902 original_bb = bb = mono_basic_block_split (method, &cfg->error, header);
7907 /* we use a spare stack slot in SWITCH and NEWOBJ and others */
7908 stack_start = sp = (MonoInst **)mono_mempool_alloc0 (cfg->mempool, sizeof (MonoInst*) * (header->max_stack + 1));
7911 start_new_bblock = 0;
7913 if (cfg->method == method)
7914 cfg->real_offset = ip - header->code;
7916 cfg->real_offset = inline_offset;
7921 if (start_new_bblock) {
7922 cfg->cbb->cil_length = ip - cfg->cbb->cil_code;
7923 if (start_new_bblock == 2) {
7924 g_assert (ip == tblock->cil_code);
7926 GET_BBLOCK (cfg, tblock, ip);
7928 cfg->cbb->next_bb = tblock;
7930 start_new_bblock = 0;
7931 for (i = 0; i < cfg->cbb->in_scount; ++i) {
7932 if (cfg->verbose_level > 3)
7933 printf ("loading %d from temp %d\n", i, (int)cfg->cbb->in_stack [i]->inst_c0);
7934 EMIT_NEW_TEMPLOAD (cfg, ins, cfg->cbb->in_stack [i]->inst_c0);
7938 g_slist_free (class_inits);
7941 if ((tblock = cfg->cil_offset_to_bb [ip - cfg->cil_start]) && (tblock != cfg->cbb)) {
7942 link_bblock (cfg, cfg->cbb, tblock);
7943 if (sp != stack_start) {
7944 handle_stack_args (cfg, stack_start, sp - stack_start);
7946 CHECK_UNVERIFIABLE (cfg);
7948 cfg->cbb->next_bb = tblock;
7950 for (i = 0; i < cfg->cbb->in_scount; ++i) {
7951 if (cfg->verbose_level > 3)
7952 printf ("loading %d from temp %d\n", i, (int)cfg->cbb->in_stack [i]->inst_c0);
7953 EMIT_NEW_TEMPLOAD (cfg, ins, cfg->cbb->in_stack [i]->inst_c0);
7956 g_slist_free (class_inits);
7961 if (skip_dead_blocks) {
7962 int ip_offset = ip - header->code;
7964 if (ip_offset == bb->end)
7968 int op_size = mono_opcode_size (ip, end);
7969 g_assert (op_size > 0); /*The BB formation pass must catch all bad ops*/
7971 if (cfg->verbose_level > 3) printf ("SKIPPING DEAD OP at %x\n", ip_offset);
7973 if (ip_offset + op_size == bb->end) {
7974 MONO_INST_NEW (cfg, ins, OP_NOP);
7975 MONO_ADD_INS (cfg->cbb, ins);
7976 start_new_bblock = 1;
7984 * Sequence points are points where the debugger can place a breakpoint.
7985 * Currently, we generate these automatically at points where the IL
7988 if (seq_points && ((!sym_seq_points && (sp == stack_start)) || (sym_seq_points && mono_bitset_test_fast (seq_point_locs, ip - header->code)))) {
7990 * Make methods interruptable at the beginning, and at the targets of
7991 * backward branches.
7992 * Also, do this at the start of every bblock in methods with clauses too,
7993 * to be able to handle instructions with inprecise control flow like
7995 * Backward branches are handled at the end of method-to-ir ().
7997 gboolean intr_loc = ip == header->code || (!cfg->cbb->last_ins && cfg->header->num_clauses);
7998 gboolean sym_seq_point = sym_seq_points && mono_bitset_test_fast (seq_point_locs, ip - header->code);
8000 /* Avoid sequence points on empty IL like .volatile */
8001 // FIXME: Enable this
8002 //if (!(cfg->cbb->last_ins && cfg->cbb->last_ins->opcode == OP_SEQ_POINT)) {
8003 NEW_SEQ_POINT (cfg, ins, ip - header->code, intr_loc);
8004 if ((sp != stack_start) && !sym_seq_point)
8005 ins->flags |= MONO_INST_NONEMPTY_STACK;
8006 MONO_ADD_INS (cfg->cbb, ins);
8009 mono_bitset_set_fast (seq_point_set_locs, ip - header->code);
8012 cfg->cbb->real_offset = cfg->real_offset;
8014 if ((cfg->method == method) && cfg->coverage_info) {
8015 guint32 cil_offset = ip - header->code;
8016 cfg->coverage_info->data [cil_offset].cil_code = ip;
8018 /* TODO: Use an increment here */
8019 #if defined(TARGET_X86)
8020 MONO_INST_NEW (cfg, ins, OP_STORE_MEM_IMM);
8021 ins->inst_p0 = &(cfg->coverage_info->data [cil_offset].count);
8023 MONO_ADD_INS (cfg->cbb, ins);
8025 EMIT_NEW_PCONST (cfg, ins, &(cfg->coverage_info->data [cil_offset].count));
8026 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STORE_MEMBASE_IMM, ins->dreg, 0, 1);
8030 if (cfg->verbose_level > 3)
8031 printf ("converting (in B%d: stack: %d) %s", cfg->cbb->block_num, (int)(sp - stack_start), mono_disasm_code_one (NULL, method, ip, NULL));
8035 if (seq_points && !sym_seq_points && sp != stack_start) {
8037 * The C# compiler uses these nops to notify the JIT that it should
8038 * insert seq points.
8040 NEW_SEQ_POINT (cfg, ins, ip - header->code, FALSE);
8041 MONO_ADD_INS (cfg->cbb, ins);
8043 if (cfg->keep_cil_nops)
8044 MONO_INST_NEW (cfg, ins, OP_HARD_NOP);
8046 MONO_INST_NEW (cfg, ins, OP_NOP);
8048 MONO_ADD_INS (cfg->cbb, ins);
8051 if (should_insert_brekpoint (cfg->method)) {
8052 ins = mono_emit_jit_icall (cfg, mono_debugger_agent_user_break, NULL);
8054 MONO_INST_NEW (cfg, ins, OP_NOP);
8057 MONO_ADD_INS (cfg->cbb, ins);
8063 CHECK_STACK_OVF (1);
8064 n = (*ip)-CEE_LDARG_0;
8066 EMIT_NEW_ARGLOAD (cfg, ins, n);
8074 CHECK_STACK_OVF (1);
8075 n = (*ip)-CEE_LDLOC_0;
8077 EMIT_NEW_LOCLOAD (cfg, ins, n);
8086 n = (*ip)-CEE_STLOC_0;
8089 if (!dont_verify_stloc && target_type_is_incompatible (cfg, header->locals [n], *sp))
8091 emit_stloc_ir (cfg, sp, header, n);
8098 CHECK_STACK_OVF (1);
8101 EMIT_NEW_ARGLOAD (cfg, ins, n);
8107 CHECK_STACK_OVF (1);
8110 NEW_ARGLOADA (cfg, ins, n);
8111 MONO_ADD_INS (cfg->cbb, ins);
8121 if (!dont_verify_stloc && target_type_is_incompatible (cfg, param_types [ip [1]], *sp))
8123 EMIT_NEW_ARGSTORE (cfg, ins, n, *sp);
8128 CHECK_STACK_OVF (1);
8131 EMIT_NEW_LOCLOAD (cfg, ins, n);
8135 case CEE_LDLOCA_S: {
8136 unsigned char *tmp_ip;
8138 CHECK_STACK_OVF (1);
8139 CHECK_LOCAL (ip [1]);
8141 if ((tmp_ip = emit_optimized_ldloca_ir (cfg, ip, end, 1))) {
8147 EMIT_NEW_LOCLOADA (cfg, ins, ip [1]);
8156 CHECK_LOCAL (ip [1]);
8157 if (!dont_verify_stloc && target_type_is_incompatible (cfg, header->locals [ip [1]], *sp))
8159 emit_stloc_ir (cfg, sp, header, ip [1]);
8164 CHECK_STACK_OVF (1);
8165 EMIT_NEW_PCONST (cfg, ins, NULL);
8166 ins->type = STACK_OBJ;
8171 CHECK_STACK_OVF (1);
8172 EMIT_NEW_ICONST (cfg, ins, -1);
8185 CHECK_STACK_OVF (1);
8186 EMIT_NEW_ICONST (cfg, ins, (*ip) - CEE_LDC_I4_0);
8192 CHECK_STACK_OVF (1);
8194 EMIT_NEW_ICONST (cfg, ins, *((signed char*)ip));
8200 CHECK_STACK_OVF (1);
8201 EMIT_NEW_ICONST (cfg, ins, (gint32)read32 (ip + 1));
8207 CHECK_STACK_OVF (1);
8208 MONO_INST_NEW (cfg, ins, OP_I8CONST);
8209 ins->type = STACK_I8;
8210 ins->dreg = alloc_dreg (cfg, STACK_I8);
8212 ins->inst_l = (gint64)read64 (ip);
8213 MONO_ADD_INS (cfg->cbb, ins);
8219 gboolean use_aotconst = FALSE;
8221 #ifdef TARGET_POWERPC
8222 /* FIXME: Clean this up */
8223 if (cfg->compile_aot)
8224 use_aotconst = TRUE;
8227 /* FIXME: we should really allocate this only late in the compilation process */
8228 f = (float *)mono_domain_alloc (cfg->domain, sizeof (float));
8230 CHECK_STACK_OVF (1);
8236 EMIT_NEW_AOTCONST (cfg, cons, MONO_PATCH_INFO_R4, f);
8238 dreg = alloc_freg (cfg);
8239 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADR4_MEMBASE, dreg, cons->dreg, 0);
8240 ins->type = cfg->r4_stack_type;
8242 MONO_INST_NEW (cfg, ins, OP_R4CONST);
8243 ins->type = cfg->r4_stack_type;
8244 ins->dreg = alloc_dreg (cfg, STACK_R8);
8246 MONO_ADD_INS (cfg->cbb, ins);
8256 gboolean use_aotconst = FALSE;
8258 #ifdef TARGET_POWERPC
8259 /* FIXME: Clean this up */
8260 if (cfg->compile_aot)
8261 use_aotconst = TRUE;
8264 /* FIXME: we should really allocate this only late in the compilation process */
8265 d = (double *)mono_domain_alloc (cfg->domain, sizeof (double));
8267 CHECK_STACK_OVF (1);
8273 EMIT_NEW_AOTCONST (cfg, cons, MONO_PATCH_INFO_R8, d);
8275 dreg = alloc_freg (cfg);
8276 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOADR8_MEMBASE, dreg, cons->dreg, 0);
8277 ins->type = STACK_R8;
8279 MONO_INST_NEW (cfg, ins, OP_R8CONST);
8280 ins->type = STACK_R8;
8281 ins->dreg = alloc_dreg (cfg, STACK_R8);
8283 MONO_ADD_INS (cfg->cbb, ins);
8292 MonoInst *temp, *store;
8294 CHECK_STACK_OVF (1);
8298 temp = mono_compile_create_var (cfg, type_from_stack_type (ins), OP_LOCAL);
8299 EMIT_NEW_TEMPSTORE (cfg, store, temp->inst_c0, ins);
8301 EMIT_NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
8304 EMIT_NEW_TEMPLOAD (cfg, ins, temp->inst_c0);
8317 if (sp [0]->type == STACK_R8)
8318 /* we need to pop the value from the x86 FP stack */
8319 MONO_EMIT_NEW_UNALU (cfg, OP_X86_FPOP, -1, sp [0]->dreg);
8324 MonoMethodSignature *fsig;
8327 INLINE_FAILURE ("jmp");
8328 GSHAREDVT_FAILURE (*ip);
8331 if (stack_start != sp)
8333 token = read32 (ip + 1);
8334 /* FIXME: check the signature matches */
8335 cmethod = mini_get_method (cfg, method, token, NULL, generic_context);
8338 if (cfg->gshared && mono_method_check_context_used (cmethod))
8339 GENERIC_SHARING_FAILURE (CEE_JMP);
8341 emit_instrumentation_call (cfg, mono_profiler_method_leave);
8343 fsig = mono_method_signature (cmethod);
8344 n = fsig->param_count + fsig->hasthis;
8345 if (cfg->llvm_only) {
8348 args = (MonoInst **)mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * n);
8349 for (i = 0; i < n; ++i)
8350 EMIT_NEW_ARGLOAD (cfg, args [i], i);
8351 ins = mono_emit_method_call_full (cfg, cmethod, fsig, TRUE, args, NULL, NULL, NULL);
8353 * The code in mono-basic-block.c treats the rest of the code as dead, but we
8354 * have to emit a normal return since llvm expects it.
8357 emit_setret (cfg, ins);
8358 MONO_INST_NEW (cfg, ins, OP_BR);
8359 ins->inst_target_bb = end_bblock;
8360 MONO_ADD_INS (cfg->cbb, ins);
8361 link_bblock (cfg, cfg->cbb, end_bblock);
8364 } else if (cfg->backend->have_op_tail_call) {
8365 /* Handle tail calls similarly to calls */
8368 MONO_INST_NEW_CALL (cfg, call, OP_TAILCALL);
8369 call->method = cmethod;
8370 call->tail_call = TRUE;
8371 call->signature = mono_method_signature (cmethod);
8372 call->args = (MonoInst **)mono_mempool_alloc (cfg->mempool, sizeof (MonoInst*) * n);
8373 call->inst.inst_p0 = cmethod;
8374 for (i = 0; i < n; ++i)
8375 EMIT_NEW_ARGLOAD (cfg, call->args [i], i);
8377 if (mini_type_is_vtype (mini_get_underlying_type (call->signature->ret)))
8378 call->vret_var = cfg->vret_addr;
8380 mono_arch_emit_call (cfg, call);
8381 cfg->param_area = MAX(cfg->param_area, call->stack_usage);
8382 MONO_ADD_INS (cfg->cbb, (MonoInst*)call);
8384 for (i = 0; i < num_args; ++i)
8385 /* Prevent arguments from being optimized away */
8386 arg_array [i]->flags |= MONO_INST_VOLATILE;
8388 MONO_INST_NEW_CALL (cfg, call, OP_JMP);
8389 ins = (MonoInst*)call;
8390 ins->inst_p0 = cmethod;
8391 MONO_ADD_INS (cfg->cbb, ins);
8395 start_new_bblock = 1;
8400 MonoMethodSignature *fsig;
8403 token = read32 (ip + 1);
8407 //GSHAREDVT_FAILURE (*ip);
8412 fsig = mini_get_signature (method, token, generic_context, &cfg->error);
8415 if (method->dynamic && fsig->pinvoke) {
8419 * This is a call through a function pointer using a pinvoke
8420 * signature. Have to create a wrapper and call that instead.
8421 * FIXME: This is very slow, need to create a wrapper at JIT time
8422 * instead based on the signature.
8424 EMIT_NEW_IMAGECONST (cfg, args [0], method->klass->image);
8425 EMIT_NEW_PCONST (cfg, args [1], fsig);
8427 addr = mono_emit_jit_icall (cfg, mono_get_native_calli_wrapper, args);
8430 n = fsig->param_count + fsig->hasthis;
8434 //g_assert (!virtual_ || fsig->hasthis);
8438 inline_costs += 10 * num_calls++;
8441 * Making generic calls out of gsharedvt methods.
8442 * This needs to be used for all generic calls, not just ones with a gsharedvt signature, to avoid
8443 * patching gshared method addresses into a gsharedvt method.
8445 if (cfg->gsharedvt && mini_is_gsharedvt_signature (fsig)) {
8447 * We pass the address to the gsharedvt trampoline in the rgctx reg
8449 MonoInst *callee = addr;
8451 if (method->wrapper_type != MONO_WRAPPER_DELEGATE_INVOKE)
8453 GSHAREDVT_FAILURE (*ip);
8457 GSHAREDVT_FAILURE (*ip);
8459 addr = emit_get_rgctx_sig (cfg, context_used,
8460 fsig, MONO_RGCTX_INFO_SIG_GSHAREDVT_OUT_TRAMPOLINE_CALLI);
8461 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, callee);
8465 /* Prevent inlining of methods with indirect calls */
8466 INLINE_FAILURE ("indirect call");
8468 if (addr->opcode == OP_PCONST || addr->opcode == OP_AOTCONST || addr->opcode == OP_GOT_ENTRY) {
8469 MonoJumpInfoType info_type;
8473 * Instead of emitting an indirect call, emit a direct call
8474 * with the contents of the aotconst as the patch info.
8476 if (addr->opcode == OP_PCONST || addr->opcode == OP_AOTCONST) {
8477 info_type = (MonoJumpInfoType)addr->inst_c1;
8478 info_data = addr->inst_p0;
8480 info_type = (MonoJumpInfoType)addr->inst_right->inst_c1;
8481 info_data = addr->inst_right->inst_left;
8484 if (info_type == MONO_PATCH_INFO_ICALL_ADDR) {
8485 ins = (MonoInst*)mono_emit_abs_call (cfg, MONO_PATCH_INFO_ICALL_ADDR_CALL, info_data, fsig, sp);
8488 } else if (info_type == MONO_PATCH_INFO_JIT_ICALL_ADDR) {
8489 ins = (MonoInst*)mono_emit_abs_call (cfg, info_type, info_data, fsig, sp);
8494 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, NULL);
8498 /* End of call, INS should contain the result of the call, if any */
8500 if (!MONO_TYPE_IS_VOID (fsig->ret)) {
8502 *sp++ = mono_emit_widen_call_res (cfg, ins, fsig);
8505 CHECK_CFG_EXCEPTION;
8509 constrained_class = NULL;
8513 case CEE_CALLVIRT: {
8514 MonoInst *addr = NULL;
8515 MonoMethodSignature *fsig = NULL;
8517 int virtual_ = *ip == CEE_CALLVIRT;
8518 gboolean pass_imt_from_rgctx = FALSE;
8519 MonoInst *imt_arg = NULL;
8520 MonoInst *keep_this_alive = NULL;
8521 gboolean pass_vtable = FALSE;
8522 gboolean pass_mrgctx = FALSE;
8523 MonoInst *vtable_arg = NULL;
8524 gboolean check_this = FALSE;
8525 gboolean supported_tail_call = FALSE;
8526 gboolean tail_call = FALSE;
8527 gboolean need_seq_point = FALSE;
8528 guint32 call_opcode = *ip;
8529 gboolean emit_widen = TRUE;
8530 gboolean push_res = TRUE;
8531 gboolean skip_ret = FALSE;
8532 gboolean delegate_invoke = FALSE;
8533 gboolean direct_icall = FALSE;
8534 gboolean constrained_partial_call = FALSE;
8535 MonoMethod *cil_method;
8538 token = read32 (ip + 1);
8542 cmethod = mini_get_method (cfg, method, token, NULL, generic_context);
8545 cil_method = cmethod;
8547 if (constrained_class) {
8548 if ((constrained_class->byval_arg.type == MONO_TYPE_VAR || constrained_class->byval_arg.type == MONO_TYPE_MVAR) && cfg->gshared) {
8549 if (!mini_is_gsharedvt_klass (constrained_class)) {
8550 g_assert (!cmethod->klass->valuetype);
8551 if (!mini_type_is_reference (&constrained_class->byval_arg))
8552 constrained_partial_call = TRUE;
8556 if (method->wrapper_type != MONO_WRAPPER_NONE) {
8557 if (cfg->verbose_level > 2)
8558 printf ("DM Constrained call to %s\n", mono_type_get_full_name (constrained_class));
8559 if (!((constrained_class->byval_arg.type == MONO_TYPE_VAR ||
8560 constrained_class->byval_arg.type == MONO_TYPE_MVAR) &&
8562 cmethod = mono_get_method_constrained_with_method (image, cil_method, constrained_class, generic_context, &cfg->error);
8566 if (cfg->verbose_level > 2)
8567 printf ("Constrained call to %s\n", mono_type_get_full_name (constrained_class));
8569 if ((constrained_class->byval_arg.type == MONO_TYPE_VAR || constrained_class->byval_arg.type == MONO_TYPE_MVAR) && cfg->gshared) {
8571 * This is needed since get_method_constrained can't find
8572 * the method in klass representing a type var.
8573 * The type var is guaranteed to be a reference type in this
8576 if (!mini_is_gsharedvt_klass (constrained_class))
8577 g_assert (!cmethod->klass->valuetype);
8579 cmethod = mono_get_method_constrained_checked (image, token, constrained_class, generic_context, &cil_method, &cfg->error);
8585 if (!dont_verify && !cfg->skip_visibility) {
8586 MonoMethod *target_method = cil_method;
8587 if (method->is_inflated) {
8588 target_method = mini_get_method_allow_open (method, token, NULL, &(mono_method_get_generic_container (method_definition)->context), &cfg->error);
8591 if (!mono_method_can_access_method (method_definition, target_method) &&
8592 !mono_method_can_access_method (method, cil_method))
8593 emit_method_access_failure (cfg, method, cil_method);
8596 if (mono_security_core_clr_enabled ())
8597 ensure_method_is_allowed_to_call_method (cfg, method, cil_method);
8599 if (!virtual_ && (cmethod->flags & METHOD_ATTRIBUTE_ABSTRACT))
8600 /* MS.NET seems to silently convert this to a callvirt */
8605 * MS.NET accepts non virtual calls to virtual final methods of transparent proxy classes and
8606 * converts to a callvirt.
8608 * tests/bug-515884.il is an example of this behavior
8610 const int test_flags = METHOD_ATTRIBUTE_VIRTUAL | METHOD_ATTRIBUTE_FINAL | METHOD_ATTRIBUTE_STATIC;
8611 const int expected_flags = METHOD_ATTRIBUTE_VIRTUAL | METHOD_ATTRIBUTE_FINAL;
8612 if (!virtual_ && mono_class_is_marshalbyref (cmethod->klass) && (cmethod->flags & test_flags) == expected_flags && cfg->method->wrapper_type == MONO_WRAPPER_NONE)
8616 if (!cmethod->klass->inited)
8617 if (!mono_class_init (cmethod->klass))
8618 TYPE_LOAD_ERROR (cmethod->klass);
8620 fsig = mono_method_signature (cmethod);
8623 if (cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL &&
8624 mini_class_is_system_array (cmethod->klass)) {
8625 array_rank = cmethod->klass->rank;
8626 } else if ((cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) && icall_is_direct_callable (cfg, cmethod)) {
8627 direct_icall = TRUE;
8628 } else if (fsig->pinvoke) {
8629 MonoMethod *wrapper = mono_marshal_get_native_wrapper (cmethod, TRUE, cfg->compile_aot);
8630 fsig = mono_method_signature (wrapper);
8631 } else if (constrained_class) {
8633 fsig = mono_method_get_signature_checked (cmethod, image, token, generic_context, &cfg->error);
8637 if (cfg->llvm_only && !cfg->method->wrapper_type && (!cmethod || cmethod->is_inflated))
8638 cfg->signatures = g_slist_prepend_mempool (cfg->mempool, cfg->signatures, fsig);
8640 /* See code below */
8641 if (cmethod->klass == mono_defaults.monitor_class && !strcmp (cmethod->name, "Enter") && mono_method_signature (cmethod)->param_count == 1) {
8642 MonoBasicBlock *tbb;
8644 GET_BBLOCK (cfg, tbb, ip + 5);
8645 if (tbb->try_start && MONO_REGION_FLAGS(tbb->region) == MONO_EXCEPTION_CLAUSE_FINALLY) {
8647 * We want to extend the try block to cover the call, but we can't do it if the
8648 * call is made directly since its followed by an exception check.
8650 direct_icall = FALSE;
8654 mono_save_token_info (cfg, image, token, cil_method);
8656 if (!(seq_point_locs && mono_bitset_test_fast (seq_point_locs, ip + 5 - header->code)))
8657 need_seq_point = TRUE;
8659 /* Don't support calls made using type arguments for now */
8661 if (cfg->gsharedvt) {
8662 if (mini_is_gsharedvt_signature (fsig))
8663 GSHAREDVT_FAILURE (*ip);
8667 if (cmethod->string_ctor && method->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE)
8668 g_assert_not_reached ();
8670 n = fsig->param_count + fsig->hasthis;
8672 if (!cfg->gshared && mono_class_is_gtd (cmethod->klass))
8676 g_assert (!mono_method_check_context_used (cmethod));
8680 //g_assert (!virtual_ || fsig->hasthis);
8685 * We have the `constrained.' prefix opcode.
8687 if (constrained_class) {
8688 if (mini_is_gsharedvt_klass (constrained_class)) {
8689 if ((cmethod->klass != mono_defaults.object_class) && constrained_class->valuetype && cmethod->klass->valuetype) {
8690 /* The 'Own method' case below */
8691 } else if (cmethod->klass->image != mono_defaults.corlib && !mono_class_is_interface (cmethod->klass) && !cmethod->klass->valuetype) {
8692 /* 'The type parameter is instantiated as a reference type' case below. */
8694 ins = handle_constrained_gsharedvt_call (cfg, cmethod, fsig, sp, constrained_class, &emit_widen);
8695 CHECK_CFG_EXCEPTION;
8701 if (constrained_partial_call) {
8702 gboolean need_box = TRUE;
8705 * The receiver is a valuetype, but the exact type is not known at compile time. This means the
8706 * called method is not known at compile time either. The called method could end up being
8707 * one of the methods on the parent classes (object/valuetype/enum), in which case we need
8708 * to box the receiver.
8709 * A simple solution would be to box always and make a normal virtual call, but that would
8710 * be bad performance wise.
8712 if (mono_class_is_interface (cmethod->klass) && mono_class_is_ginst (cmethod->klass)) {
8714 * The parent classes implement no generic interfaces, so the called method will be a vtype method, so no boxing neccessary.
8719 if (!(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) && (cmethod->klass == mono_defaults.object_class || cmethod->klass == mono_defaults.enum_class->parent || cmethod->klass == mono_defaults.enum_class)) {
8720 /* The called method is not virtual, i.e. Object:GetType (), the receiver is a vtype, has to box */
8721 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &constrained_class->byval_arg, sp [0]->dreg, 0);
8722 ins->klass = constrained_class;
8723 sp [0] = handle_box (cfg, ins, constrained_class, mono_class_check_context_used (constrained_class));
8724 CHECK_CFG_EXCEPTION;
8725 } else if (need_box) {
8727 MonoBasicBlock *is_ref_bb, *end_bb;
8728 MonoInst *nonbox_call;
8731 * Determine at runtime whenever the called method is defined on object/valuetype/enum, and emit a boxing call
8733 * FIXME: It is possible to inline the called method in a lot of cases, i.e. for T_INT,
8734 * the no-box case goes to a method in Int32, while the box case goes to a method in Enum.
8736 addr = emit_get_rgctx_virt_method (cfg, mono_class_check_context_used (constrained_class), constrained_class, cmethod, MONO_RGCTX_INFO_VIRT_METHOD_CODE);
8738 NEW_BBLOCK (cfg, is_ref_bb);
8739 NEW_BBLOCK (cfg, end_bb);
8741 box_type = emit_get_rgctx_virt_method (cfg, mono_class_check_context_used (constrained_class), constrained_class, cmethod, MONO_RGCTX_INFO_VIRT_METHOD_BOX_TYPE);
8742 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, box_type->dreg, MONO_GSHAREDVT_BOX_TYPE_REF);
8743 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBEQ, is_ref_bb);
8746 nonbox_call = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, NULL);
8748 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
8751 MONO_START_BB (cfg, is_ref_bb);
8752 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &constrained_class->byval_arg, sp [0]->dreg, 0);
8753 ins->klass = constrained_class;
8754 sp [0] = handle_box (cfg, ins, constrained_class, mono_class_check_context_used (constrained_class));
8755 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, NULL);
8757 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
8759 MONO_START_BB (cfg, end_bb);
8762 nonbox_call->dreg = ins->dreg;
8765 g_assert (mono_class_is_interface (cmethod->klass));
8766 addr = emit_get_rgctx_virt_method (cfg, mono_class_check_context_used (constrained_class), constrained_class, cmethod, MONO_RGCTX_INFO_VIRT_METHOD_CODE);
8767 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, NULL);
8770 } else if (constrained_class->valuetype && (cmethod->klass == mono_defaults.object_class || cmethod->klass == mono_defaults.enum_class->parent || cmethod->klass == mono_defaults.enum_class)) {
8772 * The type parameter is instantiated as a valuetype,
8773 * but that type doesn't override the method we're
8774 * calling, so we need to box `this'.
8776 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &constrained_class->byval_arg, sp [0]->dreg, 0);
8777 ins->klass = constrained_class;
8778 sp [0] = handle_box (cfg, ins, constrained_class, mono_class_check_context_used (constrained_class));
8779 CHECK_CFG_EXCEPTION;
8780 } else if (!constrained_class->valuetype) {
8781 int dreg = alloc_ireg_ref (cfg);
8784 * The type parameter is instantiated as a reference
8785 * type. We have a managed pointer on the stack, so
8786 * we need to dereference it here.
8788 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, dreg, sp [0]->dreg, 0);
8789 ins->type = STACK_OBJ;
8792 if (cmethod->klass->valuetype) {
8795 /* Interface method */
8798 mono_class_setup_vtable (constrained_class);
8799 CHECK_TYPELOAD (constrained_class);
8800 ioffset = mono_class_interface_offset (constrained_class, cmethod->klass);
8802 TYPE_LOAD_ERROR (constrained_class);
8803 slot = mono_method_get_vtable_slot (cmethod);
8805 TYPE_LOAD_ERROR (cmethod->klass);
8806 cmethod = constrained_class->vtable [ioffset + slot];
8808 if (cmethod->klass == mono_defaults.enum_class) {
8809 /* Enum implements some interfaces, so treat this as the first case */
8810 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &constrained_class->byval_arg, sp [0]->dreg, 0);
8811 ins->klass = constrained_class;
8812 sp [0] = handle_box (cfg, ins, constrained_class, mono_class_check_context_used (constrained_class));
8813 CHECK_CFG_EXCEPTION;
8818 constrained_class = NULL;
8821 if (check_call_signature (cfg, fsig, sp))
8824 if ((cmethod->klass->parent == mono_defaults.multicastdelegate_class) && !strcmp (cmethod->name, "Invoke"))
8825 delegate_invoke = TRUE;
8827 if ((cfg->opt & MONO_OPT_INTRINS) && (ins = mini_emit_inst_for_sharable_method (cfg, cmethod, fsig, sp))) {
8828 if (!MONO_TYPE_IS_VOID (fsig->ret)) {
8829 type_to_eval_stack_type ((cfg), fsig->ret, ins);
8837 * If the callee is a shared method, then its static cctor
8838 * might not get called after the call was patched.
8840 if (cfg->gshared && cmethod->klass != method->klass && mono_class_is_ginst (cmethod->klass) && mono_method_is_generic_sharable (cmethod, TRUE) && mono_class_needs_cctor_run (cmethod->klass, method)) {
8841 emit_class_init (cfg, cmethod->klass);
8842 CHECK_TYPELOAD (cmethod->klass);
8845 check_method_sharing (cfg, cmethod, &pass_vtable, &pass_mrgctx);
8848 MonoGenericContext *cmethod_context = mono_method_get_context (cmethod);
8850 context_used = mini_method_check_context_used (cfg, cmethod);
8852 if (context_used && mono_class_is_interface (cmethod->klass)) {
8853 /* Generic method interface
8854 calls are resolved via a
8855 helper function and don't
8857 if (!cmethod_context || !cmethod_context->method_inst)
8858 pass_imt_from_rgctx = TRUE;
8862 * If a shared method calls another
8863 * shared method then the caller must
8864 * have a generic sharing context
8865 * because the magic trampoline
8866 * requires it. FIXME: We shouldn't
8867 * have to force the vtable/mrgctx
8868 * variable here. Instead there
8869 * should be a flag in the cfg to
8870 * request a generic sharing context.
8873 ((method->flags & METHOD_ATTRIBUTE_STATIC) || method->klass->valuetype))
8874 mono_get_vtable_var (cfg);
8879 vtable_arg = mini_emit_get_rgctx_klass (cfg, context_used, cmethod->klass, MONO_RGCTX_INFO_VTABLE);
8881 MonoVTable *vtable = mono_class_vtable (cfg->domain, cmethod->klass);
8883 CHECK_TYPELOAD (cmethod->klass);
8884 EMIT_NEW_VTABLECONST (cfg, vtable_arg, vtable);
8889 g_assert (!vtable_arg);
8891 if (!cfg->compile_aot) {
8893 * emit_get_rgctx_method () calls mono_class_vtable () so check
8894 * for type load errors before.
8896 mono_class_setup_vtable (cmethod->klass);
8897 CHECK_TYPELOAD (cmethod->klass);
8900 vtable_arg = emit_get_rgctx_method (cfg, context_used, cmethod, MONO_RGCTX_INFO_METHOD_RGCTX);
8902 /* !marshalbyref is needed to properly handle generic methods + remoting */
8903 if ((!(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
8904 MONO_METHOD_IS_FINAL (cmethod)) &&
8905 !mono_class_is_marshalbyref (cmethod->klass)) {
8912 if (pass_imt_from_rgctx) {
8913 g_assert (!pass_vtable);
8915 imt_arg = emit_get_rgctx_method (cfg, context_used,
8916 cmethod, MONO_RGCTX_INFO_METHOD);
8920 MONO_EMIT_NEW_CHECK_THIS (cfg, sp [0]->dreg);
8922 /* Calling virtual generic methods */
8923 if (virtual_ && (cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) &&
8924 !(MONO_METHOD_IS_FINAL (cmethod) &&
8925 cmethod->wrapper_type != MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK) &&
8926 fsig->generic_param_count &&
8927 !(cfg->gsharedvt && mini_is_gsharedvt_signature (fsig)) &&
8929 MonoInst *this_temp, *this_arg_temp, *store;
8930 MonoInst *iargs [4];
8932 g_assert (fsig->is_inflated);
8934 /* Prevent inlining of methods that contain indirect calls */
8935 INLINE_FAILURE ("virtual generic call");
8937 if (cfg->gsharedvt && mini_is_gsharedvt_signature (fsig))
8938 GSHAREDVT_FAILURE (*ip);
8940 if (cfg->backend->have_generalized_imt_trampoline && cfg->backend->gshared_supported && cmethod->wrapper_type == MONO_WRAPPER_NONE) {
8941 g_assert (!imt_arg);
8943 g_assert (cmethod->is_inflated);
8944 imt_arg = emit_get_rgctx_method (cfg, context_used,
8945 cmethod, MONO_RGCTX_INFO_METHOD);
8946 ins = mono_emit_method_call_full (cfg, cmethod, fsig, FALSE, sp, sp [0], imt_arg, NULL);
8948 this_temp = mono_compile_create_var (cfg, type_from_stack_type (sp [0]), OP_LOCAL);
8949 NEW_TEMPSTORE (cfg, store, this_temp->inst_c0, sp [0]);
8950 MONO_ADD_INS (cfg->cbb, store);
8952 /* FIXME: This should be a managed pointer */
8953 this_arg_temp = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
8955 EMIT_NEW_TEMPLOAD (cfg, iargs [0], this_temp->inst_c0);
8956 iargs [1] = emit_get_rgctx_method (cfg, context_used,
8957 cmethod, MONO_RGCTX_INFO_METHOD);
8958 EMIT_NEW_TEMPLOADA (cfg, iargs [2], this_arg_temp->inst_c0);
8959 addr = mono_emit_jit_icall (cfg,
8960 mono_helper_compile_generic_method, iargs);
8962 EMIT_NEW_TEMPLOAD (cfg, sp [0], this_arg_temp->inst_c0);
8964 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, NULL);
8971 * Implement a workaround for the inherent races involved in locking:
8977 * If a thread abort happens between the call to Monitor.Enter () and the start of the
8978 * try block, the Exit () won't be executed, see:
8979 * http://www.bluebytesoftware.com/blog/2007/01/30/MonitorEnterThreadAbortsAndOrphanedLocks.aspx
8980 * To work around this, we extend such try blocks to include the last x bytes
8981 * of the Monitor.Enter () call.
8983 if (cmethod->klass == mono_defaults.monitor_class && !strcmp (cmethod->name, "Enter") && mono_method_signature (cmethod)->param_count == 1) {
8984 MonoBasicBlock *tbb;
8986 GET_BBLOCK (cfg, tbb, ip + 5);
8988 * Only extend try blocks with a finally, to avoid catching exceptions thrown
8989 * from Monitor.Enter like ArgumentNullException.
8991 if (tbb->try_start && MONO_REGION_FLAGS(tbb->region) == MONO_EXCEPTION_CLAUSE_FINALLY) {
8992 /* Mark this bblock as needing to be extended */
8993 tbb->extend_try_block = TRUE;
8997 /* Conversion to a JIT intrinsic */
8998 if ((cfg->opt & MONO_OPT_INTRINS) && (ins = mini_emit_inst_for_method (cfg, cmethod, fsig, sp))) {
8999 if (!MONO_TYPE_IS_VOID (fsig->ret)) {
9000 type_to_eval_stack_type ((cfg), fsig->ret, ins);
9008 if ((cfg->opt & MONO_OPT_INLINE) &&
9009 (!virtual_ || !(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL) || MONO_METHOD_IS_FINAL (cmethod)) &&
9010 mono_method_check_inlining (cfg, cmethod)) {
9012 gboolean always = FALSE;
9014 if ((cmethod->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
9015 (cmethod->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL)) {
9016 /* Prevent inlining of methods that call wrappers */
9017 INLINE_FAILURE ("wrapper call");
9018 cmethod = mono_marshal_get_native_wrapper (cmethod, TRUE, FALSE);
9022 costs = inline_method (cfg, cmethod, fsig, sp, ip, cfg->real_offset, always);
9024 cfg->real_offset += 5;
9026 if (!MONO_TYPE_IS_VOID (fsig->ret)) {
9027 /* *sp is already set by inline_method */
9032 inline_costs += costs;
9038 /* Tail recursion elimination */
9039 if ((cfg->opt & MONO_OPT_TAILC) && call_opcode == CEE_CALL && cmethod == method && ip [5] == CEE_RET && !vtable_arg) {
9040 gboolean has_vtargs = FALSE;
9043 /* Prevent inlining of methods with tail calls (the call stack would be altered) */
9044 INLINE_FAILURE ("tail call");
9046 /* keep it simple */
9047 for (i = fsig->param_count - 1; i >= 0; i--) {
9048 if (MONO_TYPE_ISSTRUCT (mono_method_signature (cmethod)->params [i]))
9053 if (need_seq_point) {
9054 emit_seq_point (cfg, method, ip, FALSE, TRUE);
9055 need_seq_point = FALSE;
9057 for (i = 0; i < n; ++i)
9058 EMIT_NEW_ARGSTORE (cfg, ins, i, sp [i]);
9059 MONO_INST_NEW (cfg, ins, OP_BR);
9060 MONO_ADD_INS (cfg->cbb, ins);
9061 tblock = start_bblock->out_bb [0];
9062 link_bblock (cfg, cfg->cbb, tblock);
9063 ins->inst_target_bb = tblock;
9064 start_new_bblock = 1;
9066 /* skip the CEE_RET, too */
9067 if (ip_in_bb (cfg, cfg->cbb, ip + 5))
9074 inline_costs += 10 * num_calls++;
9077 * Synchronized wrappers.
9078 * Its hard to determine where to replace a method with its synchronized
9079 * wrapper without causing an infinite recursion. The current solution is
9080 * to add the synchronized wrapper in the trampolines, and to
9081 * change the called method to a dummy wrapper, and resolve that wrapper
9082 * to the real method in mono_jit_compile_method ().
9084 if (cfg->method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
9085 MonoMethod *orig = mono_marshal_method_from_wrapper (cfg->method);
9086 if (cmethod == orig || (cmethod->is_inflated && mono_method_get_declaring_generic_method (cmethod) == orig))
9087 cmethod = mono_marshal_get_synchronized_inner_wrapper (cmethod);
9091 * Making generic calls out of gsharedvt methods.
9092 * This needs to be used for all generic calls, not just ones with a gsharedvt signature, to avoid
9093 * patching gshared method addresses into a gsharedvt method.
9095 if (cfg->gsharedvt && (mini_is_gsharedvt_signature (fsig) || cmethod->is_inflated || mono_class_is_ginst (cmethod->klass)) &&
9096 !(cmethod->klass->rank && cmethod->klass->byval_arg.type != MONO_TYPE_SZARRAY) &&
9097 (!(cfg->llvm_only && virtual_ && (cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL)))) {
9098 MonoRgctxInfoType info_type;
9101 //if (mono_class_is_interface (cmethod->klass))
9102 //GSHAREDVT_FAILURE (*ip);
9103 // disable for possible remoting calls
9104 if (fsig->hasthis && (mono_class_is_marshalbyref (method->klass) || method->klass == mono_defaults.object_class))
9105 GSHAREDVT_FAILURE (*ip);
9106 if (fsig->generic_param_count) {
9107 /* virtual generic call */
9108 g_assert (!imt_arg);
9109 /* Same as the virtual generic case above */
9110 imt_arg = emit_get_rgctx_method (cfg, context_used,
9111 cmethod, MONO_RGCTX_INFO_METHOD);
9112 /* This is not needed, as the trampoline code will pass one, and it might be passed in the same reg as the imt arg */
9114 } else if (mono_class_is_interface (cmethod->klass) && !imt_arg) {
9115 /* This can happen when we call a fully instantiated iface method */
9116 imt_arg = emit_get_rgctx_method (cfg, context_used,
9117 cmethod, MONO_RGCTX_INFO_METHOD);
9122 if ((cmethod->klass->parent == mono_defaults.multicastdelegate_class) && (!strcmp (cmethod->name, "Invoke")))
9123 keep_this_alive = sp [0];
9125 if (virtual_ && (cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL))
9126 info_type = MONO_RGCTX_INFO_METHOD_GSHAREDVT_OUT_TRAMPOLINE_VIRT;
9128 info_type = MONO_RGCTX_INFO_METHOD_GSHAREDVT_OUT_TRAMPOLINE;
9129 addr = emit_get_rgctx_gsharedvt_call (cfg, context_used, fsig, cmethod, info_type);
9131 if (cfg->llvm_only) {
9132 // FIXME: Avoid initializing vtable_arg
9133 ins = emit_llvmonly_calli (cfg, fsig, sp, addr);
9135 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, imt_arg, vtable_arg);
9140 /* Generic sharing */
9143 * Use this if the callee is gsharedvt sharable too, since
9144 * at runtime we might find an instantiation so the call cannot
9145 * be patched (the 'no_patch' code path in mini-trampolines.c).
9147 if (context_used && !imt_arg && !array_rank && !delegate_invoke &&
9148 (!mono_method_is_generic_sharable_full (cmethod, TRUE, FALSE, FALSE) ||
9149 !mono_class_generic_sharing_enabled (cmethod->klass)) &&
9150 (!virtual_ || MONO_METHOD_IS_FINAL (cmethod) ||
9151 !(cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL))) {
9152 INLINE_FAILURE ("gshared");
9154 g_assert (cfg->gshared && cmethod);
9158 * We are compiling a call to a
9159 * generic method from shared code,
9160 * which means that we have to look up
9161 * the method in the rgctx and do an
9165 MONO_EMIT_NEW_CHECK_THIS (cfg, sp [0]->dreg);
9167 if (cfg->llvm_only) {
9168 if (cfg->gsharedvt && mini_is_gsharedvt_variable_signature (fsig))
9169 addr = emit_get_rgctx_method (cfg, context_used, cmethod, MONO_RGCTX_INFO_GSHAREDVT_OUT_WRAPPER);
9171 addr = emit_get_rgctx_method (cfg, context_used, cmethod, MONO_RGCTX_INFO_GENERIC_METHOD_CODE);
9172 // FIXME: Avoid initializing imt_arg/vtable_arg
9173 ins = emit_llvmonly_calli (cfg, fsig, sp, addr);
9175 addr = emit_get_rgctx_method (cfg, context_used, cmethod, MONO_RGCTX_INFO_GENERIC_METHOD_CODE);
9176 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, imt_arg, vtable_arg);
9181 /* Direct calls to icalls */
9183 MonoMethod *wrapper;
9186 /* Inline the wrapper */
9187 wrapper = mono_marshal_get_native_wrapper (cmethod, TRUE, cfg->compile_aot);
9189 costs = inline_method (cfg, wrapper, fsig, sp, ip, cfg->real_offset, TRUE);
9190 g_assert (costs > 0);
9191 cfg->real_offset += 5;
9193 if (!MONO_TYPE_IS_VOID (fsig->ret)) {
9194 /* *sp is already set by inline_method */
9199 inline_costs += costs;
9208 if (strcmp (cmethod->name, "Set") == 0) { /* array Set */
9209 MonoInst *val = sp [fsig->param_count];
9211 if (val->type == STACK_OBJ) {
9212 MonoInst *iargs [2];
9217 mono_emit_jit_icall (cfg, mono_helper_stelem_ref_check, iargs);
9220 addr = mini_emit_ldelema_ins (cfg, cmethod, sp, ip, TRUE);
9221 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, ins, fsig->params [fsig->param_count - 1], addr->dreg, 0, val->dreg);
9222 if (cfg->gen_write_barriers && val->type == STACK_OBJ && !MONO_INS_IS_PCONST_NULL (val))
9223 emit_write_barrier (cfg, addr, val);
9224 if (cfg->gen_write_barriers && mini_is_gsharedvt_klass (cmethod->klass))
9225 GSHAREDVT_FAILURE (*ip);
9226 } else if (strcmp (cmethod->name, "Get") == 0) { /* array Get */
9227 addr = mini_emit_ldelema_ins (cfg, cmethod, sp, ip, FALSE);
9229 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, fsig->ret, addr->dreg, 0);
9230 } else if (strcmp (cmethod->name, "Address") == 0) { /* array Address */
9231 if (!cmethod->klass->element_class->valuetype && !readonly)
9232 mini_emit_check_array_type (cfg, sp [0], cmethod->klass);
9233 CHECK_TYPELOAD (cmethod->klass);
9236 addr = mini_emit_ldelema_ins (cfg, cmethod, sp, ip, FALSE);
9239 g_assert_not_reached ();
9246 ins = mini_redirect_call (cfg, cmethod, fsig, sp, virtual_ ? sp [0] : NULL);
9250 /* Tail prefix / tail call optimization */
9252 /* FIXME: Enabling TAILC breaks some inlining/stack trace/etc tests */
9253 /* FIXME: runtime generic context pointer for jumps? */
9254 /* FIXME: handle this for generic sharing eventually */
9255 if ((ins_flag & MONO_INST_TAILCALL) &&
9256 !vtable_arg && !cfg->gshared && is_supported_tail_call (cfg, method, cmethod, fsig, call_opcode))
9257 supported_tail_call = TRUE;
9259 if (supported_tail_call) {
9262 /* Prevent inlining of methods with tail calls (the call stack would be altered) */
9263 INLINE_FAILURE ("tail call");
9265 //printf ("HIT: %s -> %s\n", mono_method_full_name (cfg->method, TRUE), mono_method_full_name (cmethod, TRUE));
9267 if (cfg->backend->have_op_tail_call) {
9268 /* Handle tail calls similarly to normal calls */
9271 emit_instrumentation_call (cfg, mono_profiler_method_leave);
9273 MONO_INST_NEW_CALL (cfg, call, OP_JMP);
9274 call->tail_call = TRUE;
9275 call->method = cmethod;
9276 call->signature = mono_method_signature (cmethod);
9279 * We implement tail calls by storing the actual arguments into the
9280 * argument variables, then emitting a CEE_JMP.
9282 for (i = 0; i < n; ++i) {
9283 /* Prevent argument from being register allocated */
9284 arg_array [i]->flags |= MONO_INST_VOLATILE;
9285 EMIT_NEW_ARGSTORE (cfg, ins, i, sp [i]);
9287 ins = (MonoInst*)call;
9288 ins->inst_p0 = cmethod;
9289 ins->inst_p1 = arg_array [0];
9290 MONO_ADD_INS (cfg->cbb, ins);
9291 link_bblock (cfg, cfg->cbb, end_bblock);
9292 start_new_bblock = 1;
9294 // FIXME: Eliminate unreachable epilogs
9297 * OP_TAILCALL has no return value, so skip the CEE_RET if it is
9298 * only reachable from this call.
9300 GET_BBLOCK (cfg, tblock, ip + 5);
9301 if (tblock == cfg->cbb || tblock->in_count == 0)
9310 * Virtual calls in llvm-only mode.
9312 if (cfg->llvm_only && virtual_ && cmethod && (cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
9313 ins = emit_llvmonly_virtual_call (cfg, cmethod, fsig, context_used, sp);
9318 if (!(cmethod->iflags & METHOD_IMPL_ATTRIBUTE_AGGRESSIVE_INLINING))
9319 INLINE_FAILURE ("call");
9320 ins = mono_emit_method_call_full (cfg, cmethod, fsig, tail_call, sp, virtual_ ? sp [0] : NULL,
9321 imt_arg, vtable_arg);
9323 if (tail_call && !cfg->llvm_only) {
9324 link_bblock (cfg, cfg->cbb, end_bblock);
9325 start_new_bblock = 1;
9327 // FIXME: Eliminate unreachable epilogs
9330 * OP_TAILCALL has no return value, so skip the CEE_RET if it is
9331 * only reachable from this call.
9333 GET_BBLOCK (cfg, tblock, ip + 5);
9334 if (tblock == cfg->cbb || tblock->in_count == 0)
9341 /* End of call, INS should contain the result of the call, if any */
9343 if (push_res && !MONO_TYPE_IS_VOID (fsig->ret)) {
9346 *sp++ = mono_emit_widen_call_res (cfg, ins, fsig);
9351 if (keep_this_alive) {
9352 MonoInst *dummy_use;
9354 /* See mono_emit_method_call_full () */
9355 EMIT_NEW_DUMMY_USE (cfg, dummy_use, keep_this_alive);
9358 if (cfg->llvm_only && cmethod && method_needs_stack_walk (cfg, cmethod)) {
9360 * Clang can convert these calls to tail calls which screw up the stack
9361 * walk. This happens even when the -fno-optimize-sibling-calls
9362 * option is passed to clang.
9363 * Work around this by emitting a dummy call.
9365 mono_emit_jit_icall (cfg, mono_dummy_jit_icall, NULL);
9368 CHECK_CFG_EXCEPTION;
9372 g_assert (*ip == CEE_RET);
9376 constrained_class = NULL;
9378 emit_seq_point (cfg, method, ip, FALSE, TRUE);
9382 if (cfg->method != method) {
9383 /* return from inlined method */
9385 * If in_count == 0, that means the ret is unreachable due to
9386 * being preceeded by a throw. In that case, inline_method () will
9387 * handle setting the return value
9388 * (test case: test_0_inline_throw ()).
9390 if (return_var && cfg->cbb->in_count) {
9391 MonoType *ret_type = mono_method_signature (method)->ret;
9397 if ((method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_NONE) && target_type_is_incompatible (cfg, ret_type, *sp))
9400 //g_assert (returnvar != -1);
9401 EMIT_NEW_TEMPSTORE (cfg, store, return_var->inst_c0, *sp);
9402 cfg->ret_var_set = TRUE;
9405 emit_instrumentation_call (cfg, mono_profiler_method_leave);
9407 if (cfg->lmf_var && cfg->cbb->in_count && !cfg->llvm_only)
9411 MonoType *ret_type = mini_get_underlying_type (mono_method_signature (method)->ret);
9413 if (seq_points && !sym_seq_points) {
9415 * Place a seq point here too even through the IL stack is not
9416 * empty, so a step over on
9419 * will work correctly.
9421 NEW_SEQ_POINT (cfg, ins, ip - header->code, TRUE);
9422 MONO_ADD_INS (cfg->cbb, ins);
9425 g_assert (!return_var);
9429 if ((method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD || method->wrapper_type == MONO_WRAPPER_NONE) && target_type_is_incompatible (cfg, ret_type, *sp))
9432 emit_setret (cfg, *sp);
9435 if (sp != stack_start)
9437 MONO_INST_NEW (cfg, ins, OP_BR);
9439 ins->inst_target_bb = end_bblock;
9440 MONO_ADD_INS (cfg->cbb, ins);
9441 link_bblock (cfg, cfg->cbb, end_bblock);
9442 start_new_bblock = 1;
9446 MONO_INST_NEW (cfg, ins, OP_BR);
9448 target = ip + 1 + (signed char)(*ip);
9450 GET_BBLOCK (cfg, tblock, target);
9451 link_bblock (cfg, cfg->cbb, tblock);
9452 ins->inst_target_bb = tblock;
9453 if (sp != stack_start) {
9454 handle_stack_args (cfg, stack_start, sp - stack_start);
9456 CHECK_UNVERIFIABLE (cfg);
9458 MONO_ADD_INS (cfg->cbb, ins);
9459 start_new_bblock = 1;
9460 inline_costs += BRANCH_COST;
9474 MONO_INST_NEW (cfg, ins, *ip + BIG_BRANCH_OFFSET);
9476 target = ip + 1 + *(signed char*)ip;
9482 inline_costs += BRANCH_COST;
9486 MONO_INST_NEW (cfg, ins, OP_BR);
9489 target = ip + 4 + (gint32)read32(ip);
9491 GET_BBLOCK (cfg, tblock, target);
9492 link_bblock (cfg, cfg->cbb, tblock);
9493 ins->inst_target_bb = tblock;
9494 if (sp != stack_start) {
9495 handle_stack_args (cfg, stack_start, sp - stack_start);
9497 CHECK_UNVERIFIABLE (cfg);
9500 MONO_ADD_INS (cfg->cbb, ins);
9502 start_new_bblock = 1;
9503 inline_costs += BRANCH_COST;
9510 gboolean is_short = ((*ip) == CEE_BRFALSE_S) || ((*ip) == CEE_BRTRUE_S);
9511 gboolean is_true = ((*ip) == CEE_BRTRUE_S) || ((*ip) == CEE_BRTRUE);
9512 guint32 opsize = is_short ? 1 : 4;
9514 CHECK_OPSIZE (opsize);
9516 if (sp [-1]->type == STACK_VTYPE || sp [-1]->type == STACK_R8)
9519 target = ip + opsize + (is_short ? *(signed char*)ip : (gint32)read32(ip));
9524 GET_BBLOCK (cfg, tblock, target);
9525 link_bblock (cfg, cfg->cbb, tblock);
9526 GET_BBLOCK (cfg, tblock, ip);
9527 link_bblock (cfg, cfg->cbb, tblock);
9529 if (sp != stack_start) {
9530 handle_stack_args (cfg, stack_start, sp - stack_start);
9531 CHECK_UNVERIFIABLE (cfg);
9534 MONO_INST_NEW(cfg, cmp, OP_ICOMPARE_IMM);
9535 cmp->sreg1 = sp [0]->dreg;
9536 type_from_op (cfg, cmp, sp [0], NULL);
9539 #if SIZEOF_REGISTER == 4
9540 if (cmp->opcode == OP_LCOMPARE_IMM) {
9541 /* Convert it to OP_LCOMPARE */
9542 MONO_INST_NEW (cfg, ins, OP_I8CONST);
9543 ins->type = STACK_I8;
9544 ins->dreg = alloc_dreg (cfg, STACK_I8);
9546 MONO_ADD_INS (cfg->cbb, ins);
9547 cmp->opcode = OP_LCOMPARE;
9548 cmp->sreg2 = ins->dreg;
9551 MONO_ADD_INS (cfg->cbb, cmp);
9553 MONO_INST_NEW (cfg, ins, is_true ? CEE_BNE_UN : CEE_BEQ);
9554 type_from_op (cfg, ins, sp [0], NULL);
9555 MONO_ADD_INS (cfg->cbb, ins);
9556 ins->inst_many_bb = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof(gpointer)*2);
9557 GET_BBLOCK (cfg, tblock, target);
9558 ins->inst_true_bb = tblock;
9559 GET_BBLOCK (cfg, tblock, ip);
9560 ins->inst_false_bb = tblock;
9561 start_new_bblock = 2;
9564 inline_costs += BRANCH_COST;
9579 MONO_INST_NEW (cfg, ins, *ip);
9581 target = ip + 4 + (gint32)read32(ip);
9587 inline_costs += BRANCH_COST;
9591 MonoBasicBlock **targets;
9592 MonoBasicBlock *default_bblock;
9593 MonoJumpInfoBBTable *table;
9594 int offset_reg = alloc_preg (cfg);
9595 int target_reg = alloc_preg (cfg);
9596 int table_reg = alloc_preg (cfg);
9597 int sum_reg = alloc_preg (cfg);
9598 gboolean use_op_switch;
9602 n = read32 (ip + 1);
9605 if ((src1->type != STACK_I4) && (src1->type != STACK_PTR))
9609 CHECK_OPSIZE (n * sizeof (guint32));
9610 target = ip + n * sizeof (guint32);
9612 GET_BBLOCK (cfg, default_bblock, target);
9613 default_bblock->flags |= BB_INDIRECT_JUMP_TARGET;
9615 targets = (MonoBasicBlock **)mono_mempool_alloc (cfg->mempool, sizeof (MonoBasicBlock*) * n);
9616 for (i = 0; i < n; ++i) {
9617 GET_BBLOCK (cfg, tblock, target + (gint32)read32(ip));
9618 targets [i] = tblock;
9619 targets [i]->flags |= BB_INDIRECT_JUMP_TARGET;
9623 if (sp != stack_start) {
9625 * Link the current bb with the targets as well, so handle_stack_args
9626 * will set their in_stack correctly.
9628 link_bblock (cfg, cfg->cbb, default_bblock);
9629 for (i = 0; i < n; ++i)
9630 link_bblock (cfg, cfg->cbb, targets [i]);
9632 handle_stack_args (cfg, stack_start, sp - stack_start);
9634 CHECK_UNVERIFIABLE (cfg);
9636 /* Undo the links */
9637 mono_unlink_bblock (cfg, cfg->cbb, default_bblock);
9638 for (i = 0; i < n; ++i)
9639 mono_unlink_bblock (cfg, cfg->cbb, targets [i]);
9642 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ICOMPARE_IMM, -1, src1->dreg, n);
9643 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBGE_UN, default_bblock);
9645 for (i = 0; i < n; ++i)
9646 link_bblock (cfg, cfg->cbb, targets [i]);
9648 table = (MonoJumpInfoBBTable *)mono_mempool_alloc (cfg->mempool, sizeof (MonoJumpInfoBBTable));
9649 table->table = targets;
9650 table->table_size = n;
9652 use_op_switch = FALSE;
9654 /* ARM implements SWITCH statements differently */
9655 /* FIXME: Make it use the generic implementation */
9656 if (!cfg->compile_aot)
9657 use_op_switch = TRUE;
9660 if (COMPILE_LLVM (cfg))
9661 use_op_switch = TRUE;
9663 cfg->cbb->has_jump_table = 1;
9665 if (use_op_switch) {
9666 MONO_INST_NEW (cfg, ins, OP_SWITCH);
9667 ins->sreg1 = src1->dreg;
9668 ins->inst_p0 = table;
9669 ins->inst_many_bb = targets;
9670 ins->klass = (MonoClass *)GUINT_TO_POINTER (n);
9671 MONO_ADD_INS (cfg->cbb, ins);
9673 if (sizeof (gpointer) == 8)
9674 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHL_IMM, offset_reg, src1->dreg, 3);
9676 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_SHL_IMM, offset_reg, src1->dreg, 2);
9678 #if SIZEOF_REGISTER == 8
9679 /* The upper word might not be zero, and we add it to a 64 bit address later */
9680 MONO_EMIT_NEW_UNALU (cfg, OP_ZEXT_I4, offset_reg, offset_reg);
9683 if (cfg->compile_aot) {
9684 MONO_EMIT_NEW_AOTCONST (cfg, table_reg, table, MONO_PATCH_INFO_SWITCH);
9686 MONO_INST_NEW (cfg, ins, OP_JUMP_TABLE);
9687 ins->inst_c1 = MONO_PATCH_INFO_SWITCH;
9688 ins->inst_p0 = table;
9689 ins->dreg = table_reg;
9690 MONO_ADD_INS (cfg->cbb, ins);
9693 /* FIXME: Use load_memindex */
9694 MONO_EMIT_NEW_BIALU (cfg, OP_PADD, sum_reg, table_reg, offset_reg);
9695 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, target_reg, sum_reg, 0);
9696 MONO_EMIT_NEW_UNALU (cfg, OP_BR_REG, -1, target_reg);
9698 start_new_bblock = 1;
9699 inline_costs += (BRANCH_COST * 2);
9719 dreg = alloc_freg (cfg);
9722 dreg = alloc_lreg (cfg);
9725 dreg = alloc_ireg_ref (cfg);
9728 dreg = alloc_preg (cfg);
9731 NEW_LOAD_MEMBASE (cfg, ins, ldind_to_load_membase (*ip), dreg, sp [0]->dreg, 0);
9732 ins->type = ldind_type [*ip - CEE_LDIND_I1];
9733 if (*ip == CEE_LDIND_R4)
9734 ins->type = cfg->r4_stack_type;
9735 ins->flags |= ins_flag;
9736 MONO_ADD_INS (cfg->cbb, ins);
9738 if (ins_flag & MONO_INST_VOLATILE) {
9739 /* Volatile loads have acquire semantics, see 12.6.7 in Ecma 335 */
9740 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_ACQ);
9756 if (ins_flag & MONO_INST_VOLATILE) {
9757 /* Volatile stores have release semantics, see 12.6.7 in Ecma 335 */
9758 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_REL);
9761 NEW_STORE_MEMBASE (cfg, ins, stind_to_store_membase (*ip), sp [0]->dreg, 0, sp [1]->dreg);
9762 ins->flags |= ins_flag;
9765 MONO_ADD_INS (cfg->cbb, ins);
9767 if (cfg->gen_write_barriers && *ip == CEE_STIND_REF && method->wrapper_type != MONO_WRAPPER_WRITE_BARRIER && !MONO_INS_IS_PCONST_NULL (sp [1]))
9768 emit_write_barrier (cfg, sp [0], sp [1]);
9777 MONO_INST_NEW (cfg, ins, (*ip));
9779 ins->sreg1 = sp [0]->dreg;
9780 ins->sreg2 = sp [1]->dreg;
9781 type_from_op (cfg, ins, sp [0], sp [1]);
9783 ins->dreg = alloc_dreg ((cfg), (MonoStackType)(ins)->type);
9785 /* Use the immediate opcodes if possible */
9786 if ((sp [1]->opcode == OP_ICONST) && mono_arch_is_inst_imm (sp [1]->inst_c0)) {
9787 int imm_opcode = mono_op_to_op_imm_noemul (ins->opcode);
9788 if (imm_opcode != -1) {
9789 ins->opcode = imm_opcode;
9790 ins->inst_p1 = (gpointer)(gssize)(sp [1]->inst_c0);
9793 NULLIFY_INS (sp [1]);
9797 MONO_ADD_INS ((cfg)->cbb, (ins));
9799 *sp++ = mono_decompose_opcode (cfg, ins);
9816 MONO_INST_NEW (cfg, ins, (*ip));
9818 ins->sreg1 = sp [0]->dreg;
9819 ins->sreg2 = sp [1]->dreg;
9820 type_from_op (cfg, ins, sp [0], sp [1]);
9822 add_widen_op (cfg, ins, &sp [0], &sp [1]);
9823 ins->dreg = alloc_dreg ((cfg), (MonoStackType)(ins)->type);
9825 /* FIXME: Pass opcode to is_inst_imm */
9827 /* Use the immediate opcodes if possible */
9828 if (((sp [1]->opcode == OP_ICONST) || (sp [1]->opcode == OP_I8CONST)) && mono_arch_is_inst_imm (sp [1]->opcode == OP_ICONST ? sp [1]->inst_c0 : sp [1]->inst_l)) {
9829 int imm_opcode = mono_op_to_op_imm_noemul (ins->opcode);
9830 if (imm_opcode != -1) {
9831 ins->opcode = imm_opcode;
9832 if (sp [1]->opcode == OP_I8CONST) {
9833 #if SIZEOF_REGISTER == 8
9834 ins->inst_imm = sp [1]->inst_l;
9836 ins->inst_ls_word = sp [1]->inst_ls_word;
9837 ins->inst_ms_word = sp [1]->inst_ms_word;
9841 ins->inst_imm = (gssize)(sp [1]->inst_c0);
9844 /* Might be followed by an instruction added by add_widen_op */
9845 if (sp [1]->next == NULL)
9846 NULLIFY_INS (sp [1]);
9849 MONO_ADD_INS ((cfg)->cbb, (ins));
9851 *sp++ = mono_decompose_opcode (cfg, ins);
9864 case CEE_CONV_OVF_I8:
9865 case CEE_CONV_OVF_U8:
9869 /* Special case this earlier so we have long constants in the IR */
9870 if ((((*ip) == CEE_CONV_I8) || ((*ip) == CEE_CONV_U8)) && (sp [-1]->opcode == OP_ICONST)) {
9871 int data = sp [-1]->inst_c0;
9872 sp [-1]->opcode = OP_I8CONST;
9873 sp [-1]->type = STACK_I8;
9874 #if SIZEOF_REGISTER == 8
9875 if ((*ip) == CEE_CONV_U8)
9876 sp [-1]->inst_c0 = (guint32)data;
9878 sp [-1]->inst_c0 = data;
9880 sp [-1]->inst_ls_word = data;
9881 if ((*ip) == CEE_CONV_U8)
9882 sp [-1]->inst_ms_word = 0;
9884 sp [-1]->inst_ms_word = (data < 0) ? -1 : 0;
9886 sp [-1]->dreg = alloc_dreg (cfg, STACK_I8);
9893 case CEE_CONV_OVF_I4:
9894 case CEE_CONV_OVF_I1:
9895 case CEE_CONV_OVF_I2:
9896 case CEE_CONV_OVF_I:
9897 case CEE_CONV_OVF_U:
9900 if (sp [-1]->type == STACK_R8 || sp [-1]->type == STACK_R4) {
9901 ADD_UNOP (CEE_CONV_OVF_I8);
9908 case CEE_CONV_OVF_U1:
9909 case CEE_CONV_OVF_U2:
9910 case CEE_CONV_OVF_U4:
9913 if (sp [-1]->type == STACK_R8 || sp [-1]->type == STACK_R4) {
9914 ADD_UNOP (CEE_CONV_OVF_U8);
9921 case CEE_CONV_OVF_I1_UN:
9922 case CEE_CONV_OVF_I2_UN:
9923 case CEE_CONV_OVF_I4_UN:
9924 case CEE_CONV_OVF_I8_UN:
9925 case CEE_CONV_OVF_U1_UN:
9926 case CEE_CONV_OVF_U2_UN:
9927 case CEE_CONV_OVF_U4_UN:
9928 case CEE_CONV_OVF_U8_UN:
9929 case CEE_CONV_OVF_I_UN:
9930 case CEE_CONV_OVF_U_UN:
9937 CHECK_CFG_EXCEPTION;
9941 case CEE_ADD_OVF_UN:
9943 case CEE_MUL_OVF_UN:
9945 case CEE_SUB_OVF_UN:
9951 GSHAREDVT_FAILURE (*ip);
9954 token = read32 (ip + 1);
9955 klass = mini_get_class (method, token, generic_context);
9956 CHECK_TYPELOAD (klass);
9958 if (generic_class_is_reference_type (cfg, klass)) {
9959 MonoInst *store, *load;
9960 int dreg = alloc_ireg_ref (cfg);
9962 NEW_LOAD_MEMBASE (cfg, load, OP_LOAD_MEMBASE, dreg, sp [1]->dreg, 0);
9963 load->flags |= ins_flag;
9964 MONO_ADD_INS (cfg->cbb, load);
9966 NEW_STORE_MEMBASE (cfg, store, OP_STORE_MEMBASE_REG, sp [0]->dreg, 0, dreg);
9967 store->flags |= ins_flag;
9968 MONO_ADD_INS (cfg->cbb, store);
9970 if (cfg->gen_write_barriers && cfg->method->wrapper_type != MONO_WRAPPER_WRITE_BARRIER)
9971 emit_write_barrier (cfg, sp [0], sp [1]);
9973 mini_emit_stobj (cfg, sp [0], sp [1], klass, FALSE);
9985 token = read32 (ip + 1);
9986 klass = mini_get_class (method, token, generic_context);
9987 CHECK_TYPELOAD (klass);
9989 /* Optimize the common ldobj+stloc combination */
9999 loc_index = ip [5] - CEE_STLOC_0;
10006 if ((loc_index != -1) && ip_in_bb (cfg, cfg->cbb, ip + 5)) {
10007 CHECK_LOCAL (loc_index);
10009 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, sp [0]->dreg, 0);
10010 ins->dreg = cfg->locals [loc_index]->dreg;
10011 ins->flags |= ins_flag;
10014 if (ins_flag & MONO_INST_VOLATILE) {
10015 /* Volatile loads have acquire semantics, see 12.6.7 in Ecma 335 */
10016 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_ACQ);
10022 /* Optimize the ldobj+stobj combination */
10023 /* The reference case ends up being a load+store anyway */
10024 /* Skip this if the operation is volatile. */
10025 if (((ip [5] == CEE_STOBJ) && ip_in_bb (cfg, cfg->cbb, ip + 5) && read32 (ip + 6) == token) && !generic_class_is_reference_type (cfg, klass) && !(ins_flag & MONO_INST_VOLATILE)) {
10030 mini_emit_stobj (cfg, sp [0], sp [1], klass, FALSE);
10037 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, sp [0]->dreg, 0);
10038 ins->flags |= ins_flag;
10041 if (ins_flag & MONO_INST_VOLATILE) {
10042 /* Volatile loads have acquire semantics, see 12.6.7 in Ecma 335 */
10043 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_ACQ);
10052 CHECK_STACK_OVF (1);
10054 n = read32 (ip + 1);
10056 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
10057 EMIT_NEW_PCONST (cfg, ins, mono_method_get_wrapper_data (method, n));
10058 ins->type = STACK_OBJ;
10061 else if (method->wrapper_type != MONO_WRAPPER_NONE) {
10062 MonoInst *iargs [1];
10063 char *str = (char *)mono_method_get_wrapper_data (method, n);
10065 if (cfg->compile_aot)
10066 EMIT_NEW_LDSTRLITCONST (cfg, iargs [0], str);
10068 EMIT_NEW_PCONST (cfg, iargs [0], str);
10069 *sp = mono_emit_jit_icall (cfg, mono_string_new_wrapper, iargs);
10071 if (cfg->opt & MONO_OPT_SHARED) {
10072 MonoInst *iargs [3];
10074 if (cfg->compile_aot) {
10075 cfg->ldstr_list = g_list_prepend (cfg->ldstr_list, GINT_TO_POINTER (n));
10077 EMIT_NEW_DOMAINCONST (cfg, iargs [0]);
10078 EMIT_NEW_IMAGECONST (cfg, iargs [1], image);
10079 EMIT_NEW_ICONST (cfg, iargs [2], mono_metadata_token_index (n));
10080 *sp = mono_emit_jit_icall (cfg, ves_icall_mono_ldstr, iargs);
10081 mono_ldstr_checked (cfg->domain, image, mono_metadata_token_index (n), &cfg->error);
10084 if (cfg->cbb->out_of_line) {
10085 MonoInst *iargs [2];
10087 if (image == mono_defaults.corlib) {
10089 * Avoid relocations in AOT and save some space by using a
10090 * version of helper_ldstr specialized to mscorlib.
10092 EMIT_NEW_ICONST (cfg, iargs [0], mono_metadata_token_index (n));
10093 *sp = mono_emit_jit_icall (cfg, mono_helper_ldstr_mscorlib, iargs);
10095 /* Avoid creating the string object */
10096 EMIT_NEW_IMAGECONST (cfg, iargs [0], image);
10097 EMIT_NEW_ICONST (cfg, iargs [1], mono_metadata_token_index (n));
10098 *sp = mono_emit_jit_icall (cfg, mono_helper_ldstr, iargs);
10102 if (cfg->compile_aot) {
10103 NEW_LDSTRCONST (cfg, ins, image, n);
10105 MONO_ADD_INS (cfg->cbb, ins);
10108 NEW_PCONST (cfg, ins, NULL);
10109 ins->type = STACK_OBJ;
10110 ins->inst_p0 = mono_ldstr_checked (cfg->domain, image, mono_metadata_token_index (n), &cfg->error);
10114 OUT_OF_MEMORY_FAILURE;
10117 MONO_ADD_INS (cfg->cbb, ins);
10126 MonoInst *iargs [2];
10127 MonoMethodSignature *fsig;
10130 MonoInst *vtable_arg = NULL;
10133 token = read32 (ip + 1);
10134 cmethod = mini_get_method (cfg, method, token, NULL, generic_context);
10137 fsig = mono_method_get_signature_checked (cmethod, image, token, generic_context, &cfg->error);
10140 mono_save_token_info (cfg, image, token, cmethod);
10142 if (!mono_class_init (cmethod->klass))
10143 TYPE_LOAD_ERROR (cmethod->klass);
10145 context_used = mini_method_check_context_used (cfg, cmethod);
10147 if (mono_security_core_clr_enabled ())
10148 ensure_method_is_allowed_to_call_method (cfg, method, cmethod);
10150 if (cfg->gshared && cmethod && cmethod->klass != method->klass && mono_class_is_ginst (cmethod->klass) && mono_method_is_generic_sharable (cmethod, TRUE) && mono_class_needs_cctor_run (cmethod->klass, method)) {
10151 emit_class_init (cfg, cmethod->klass);
10152 CHECK_TYPELOAD (cmethod->klass);
10156 if (cfg->gsharedvt) {
10157 if (mini_is_gsharedvt_variable_signature (sig))
10158 GSHAREDVT_FAILURE (*ip);
10162 n = fsig->param_count;
10166 * Generate smaller code for the common newobj <exception> instruction in
10167 * argument checking code.
10169 if (cfg->cbb->out_of_line && cmethod->klass->image == mono_defaults.corlib &&
10170 is_exception_class (cmethod->klass) && n <= 2 &&
10171 ((n < 1) || (!fsig->params [0]->byref && fsig->params [0]->type == MONO_TYPE_STRING)) &&
10172 ((n < 2) || (!fsig->params [1]->byref && fsig->params [1]->type == MONO_TYPE_STRING))) {
10173 MonoInst *iargs [3];
10177 EMIT_NEW_ICONST (cfg, iargs [0], cmethod->klass->type_token);
10180 *sp ++ = mono_emit_jit_icall (cfg, mono_create_corlib_exception_0, iargs);
10183 iargs [1] = sp [0];
10184 *sp ++ = mono_emit_jit_icall (cfg, mono_create_corlib_exception_1, iargs);
10187 iargs [1] = sp [0];
10188 iargs [2] = sp [1];
10189 *sp ++ = mono_emit_jit_icall (cfg, mono_create_corlib_exception_2, iargs);
10192 g_assert_not_reached ();
10200 /* move the args to allow room for 'this' in the first position */
10206 /* check_call_signature () requires sp[0] to be set */
10207 this_ins.type = STACK_OBJ;
10208 sp [0] = &this_ins;
10209 if (check_call_signature (cfg, fsig, sp))
10214 if (mini_class_is_system_array (cmethod->klass)) {
10215 *sp = emit_get_rgctx_method (cfg, context_used,
10216 cmethod, MONO_RGCTX_INFO_METHOD);
10218 /* Avoid varargs in the common case */
10219 if (fsig->param_count == 1)
10220 alloc = mono_emit_jit_icall (cfg, mono_array_new_1, sp);
10221 else if (fsig->param_count == 2)
10222 alloc = mono_emit_jit_icall (cfg, mono_array_new_2, sp);
10223 else if (fsig->param_count == 3)
10224 alloc = mono_emit_jit_icall (cfg, mono_array_new_3, sp);
10225 else if (fsig->param_count == 4)
10226 alloc = mono_emit_jit_icall (cfg, mono_array_new_4, sp);
10228 alloc = handle_array_new (cfg, fsig->param_count, sp, ip);
10229 } else if (cmethod->string_ctor) {
10230 g_assert (!context_used);
10231 g_assert (!vtable_arg);
10232 /* we simply pass a null pointer */
10233 EMIT_NEW_PCONST (cfg, *sp, NULL);
10234 /* now call the string ctor */
10235 alloc = mono_emit_method_call_full (cfg, cmethod, fsig, FALSE, sp, NULL, NULL, NULL);
10237 if (cmethod->klass->valuetype) {
10238 iargs [0] = mono_compile_create_var (cfg, &cmethod->klass->byval_arg, OP_LOCAL);
10239 emit_init_rvar (cfg, iargs [0]->dreg, &cmethod->klass->byval_arg);
10240 EMIT_NEW_TEMPLOADA (cfg, *sp, iargs [0]->inst_c0);
10245 * The code generated by mini_emit_virtual_call () expects
10246 * iargs [0] to be a boxed instance, but luckily the vcall
10247 * will be transformed into a normal call there.
10249 } else if (context_used) {
10250 alloc = handle_alloc (cfg, cmethod->klass, FALSE, context_used);
10253 MonoVTable *vtable = NULL;
10255 if (!cfg->compile_aot)
10256 vtable = mono_class_vtable (cfg->domain, cmethod->klass);
10257 CHECK_TYPELOAD (cmethod->klass);
10260 * TypeInitializationExceptions thrown from the mono_runtime_class_init
10261 * call in mono_jit_runtime_invoke () can abort the finalizer thread.
10262 * As a workaround, we call class cctors before allocating objects.
10264 if (mini_field_access_needs_cctor_run (cfg, method, cmethod->klass, vtable) && !(g_slist_find (class_inits, cmethod->klass))) {
10265 emit_class_init (cfg, cmethod->klass);
10266 if (cfg->verbose_level > 2)
10267 printf ("class %s.%s needs init call for ctor\n", cmethod->klass->name_space, cmethod->klass->name);
10268 class_inits = g_slist_prepend (class_inits, cmethod->klass);
10271 alloc = handle_alloc (cfg, cmethod->klass, FALSE, 0);
10274 CHECK_CFG_EXCEPTION; /*for handle_alloc*/
10277 MONO_EMIT_NEW_UNALU (cfg, OP_NOT_NULL, -1, alloc->dreg);
10279 /* Now call the actual ctor */
10280 handle_ctor_call (cfg, cmethod, fsig, context_used, sp, ip, &inline_costs);
10281 CHECK_CFG_EXCEPTION;
10284 if (alloc == NULL) {
10286 EMIT_NEW_TEMPLOAD (cfg, ins, iargs [0]->inst_c0);
10287 type_to_eval_stack_type (cfg, &ins->klass->byval_arg, ins);
10295 if (!(seq_point_locs && mono_bitset_test_fast (seq_point_locs, ip - header->code)))
10296 emit_seq_point (cfg, method, ip, FALSE, TRUE);
10299 case CEE_CASTCLASS:
10304 token = read32 (ip + 1);
10305 klass = mini_get_class (method, token, generic_context);
10306 CHECK_TYPELOAD (klass);
10307 if (sp [0]->type != STACK_OBJ)
10310 MONO_INST_NEW (cfg, ins, *ip == CEE_ISINST ? OP_ISINST : OP_CASTCLASS);
10311 ins->dreg = alloc_preg (cfg);
10312 ins->sreg1 = (*sp)->dreg;
10313 ins->klass = klass;
10314 ins->type = STACK_OBJ;
10315 MONO_ADD_INS (cfg->cbb, ins);
10317 CHECK_CFG_EXCEPTION;
10321 cfg->flags |= MONO_CFG_HAS_TYPE_CHECK;
10324 case CEE_UNBOX_ANY: {
10325 MonoInst *res, *addr;
10330 token = read32 (ip + 1);
10331 klass = mini_get_class (method, token, generic_context);
10332 CHECK_TYPELOAD (klass);
10334 mono_save_token_info (cfg, image, token, klass);
10336 context_used = mini_class_check_context_used (cfg, klass);
10338 if (mini_is_gsharedvt_klass (klass)) {
10339 res = handle_unbox_gsharedvt (cfg, klass, *sp);
10341 } else if (generic_class_is_reference_type (cfg, klass)) {
10342 if (MONO_INS_IS_PCONST_NULL (*sp)) {
10343 EMIT_NEW_PCONST (cfg, res, NULL);
10344 res->type = STACK_OBJ;
10346 MONO_INST_NEW (cfg, res, OP_CASTCLASS);
10347 res->dreg = alloc_preg (cfg);
10348 res->sreg1 = (*sp)->dreg;
10349 res->klass = klass;
10350 res->type = STACK_OBJ;
10351 MONO_ADD_INS (cfg->cbb, res);
10352 cfg->flags |= MONO_CFG_HAS_TYPE_CHECK;
10354 } else if (mono_class_is_nullable (klass)) {
10355 res = handle_unbox_nullable (cfg, *sp, klass, context_used);
10357 addr = handle_unbox (cfg, klass, sp, context_used);
10359 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, addr->dreg, 0);
10370 MonoClass *enum_class;
10371 MonoMethod *has_flag;
10377 token = read32 (ip + 1);
10378 klass = mini_get_class (method, token, generic_context);
10379 CHECK_TYPELOAD (klass);
10381 mono_save_token_info (cfg, image, token, klass);
10383 context_used = mini_class_check_context_used (cfg, klass);
10385 if (generic_class_is_reference_type (cfg, klass)) {
10391 if (klass == mono_defaults.void_class)
10393 if (target_type_is_incompatible (cfg, &klass->byval_arg, *sp))
10395 /* frequent check in generic code: box (struct), brtrue */
10400 * <push int/long ptr>
10403 * constrained. MyFlags
10404 * callvirt instace bool class [mscorlib] System.Enum::HasFlag (class [mscorlib] System.Enum)
10406 * If we find this sequence and the operand types on box and constrained
10407 * are equal, we can emit a specialized instruction sequence instead of
10408 * the very slow HasFlag () call.
10410 if ((cfg->opt & MONO_OPT_INTRINS) &&
10411 /* Cheap checks first. */
10412 ip + 5 + 6 + 5 < end &&
10413 ip [5] == CEE_PREFIX1 &&
10414 ip [6] == CEE_CONSTRAINED_ &&
10415 ip [11] == CEE_CALLVIRT &&
10416 ip_in_bb (cfg, cfg->cbb, ip + 5 + 6 + 5) &&
10417 mono_class_is_enum (klass) &&
10418 (enum_class = mini_get_class (method, read32 (ip + 7), generic_context)) &&
10419 (has_flag = mini_get_method (cfg, method, read32 (ip + 12), NULL, generic_context)) &&
10420 has_flag->klass == mono_defaults.enum_class &&
10421 !strcmp (has_flag->name, "HasFlag") &&
10422 has_flag->signature->hasthis &&
10423 has_flag->signature->param_count == 1) {
10424 CHECK_TYPELOAD (enum_class);
10426 if (enum_class == klass) {
10427 MonoInst *enum_this, *enum_flag;
10432 enum_this = sp [0];
10433 enum_flag = sp [1];
10435 *sp++ = handle_enum_has_flag (cfg, klass, enum_this, enum_flag);
10440 // FIXME: LLVM can't handle the inconsistent bb linking
10441 if (!mono_class_is_nullable (klass) &&
10442 !mini_is_gsharedvt_klass (klass) &&
10443 ip + 5 < end && ip_in_bb (cfg, cfg->cbb, ip + 5) &&
10444 (ip [5] == CEE_BRTRUE ||
10445 ip [5] == CEE_BRTRUE_S ||
10446 ip [5] == CEE_BRFALSE ||
10447 ip [5] == CEE_BRFALSE_S)) {
10448 gboolean is_true = ip [5] == CEE_BRTRUE || ip [5] == CEE_BRTRUE_S;
10450 MonoBasicBlock *true_bb, *false_bb;
10454 if (cfg->verbose_level > 3) {
10455 printf ("converting (in B%d: stack: %d) %s", cfg->cbb->block_num, (int)(sp - stack_start), mono_disasm_code_one (NULL, method, ip, NULL));
10456 printf ("<box+brtrue opt>\n");
10461 case CEE_BRFALSE_S:
10464 target = ip + 1 + (signed char)(*ip);
10471 target = ip + 4 + (gint)(read32 (ip));
10475 g_assert_not_reached ();
10479 * We need to link both bblocks, since it is needed for handling stack
10480 * arguments correctly (See test_0_box_brtrue_opt_regress_81102).
10481 * Branching to only one of them would lead to inconsistencies, so
10482 * generate an ICONST+BRTRUE, the branch opts will get rid of them.
10484 GET_BBLOCK (cfg, true_bb, target);
10485 GET_BBLOCK (cfg, false_bb, ip);
10487 mono_link_bblock (cfg, cfg->cbb, true_bb);
10488 mono_link_bblock (cfg, cfg->cbb, false_bb);
10490 if (sp != stack_start) {
10491 handle_stack_args (cfg, stack_start, sp - stack_start);
10493 CHECK_UNVERIFIABLE (cfg);
10496 if (COMPILE_LLVM (cfg)) {
10497 dreg = alloc_ireg (cfg);
10498 MONO_EMIT_NEW_ICONST (cfg, dreg, 0);
10499 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, dreg, is_true ? 0 : 1);
10501 MONO_EMIT_NEW_BRANCH_BLOCK2 (cfg, OP_IBEQ, true_bb, false_bb);
10503 /* The JIT can't eliminate the iconst+compare */
10504 MONO_INST_NEW (cfg, ins, OP_BR);
10505 ins->inst_target_bb = is_true ? true_bb : false_bb;
10506 MONO_ADD_INS (cfg->cbb, ins);
10509 start_new_bblock = 1;
10513 *sp++ = handle_box (cfg, val, klass, context_used);
10515 CHECK_CFG_EXCEPTION;
10524 token = read32 (ip + 1);
10525 klass = mini_get_class (method, token, generic_context);
10526 CHECK_TYPELOAD (klass);
10528 mono_save_token_info (cfg, image, token, klass);
10530 context_used = mini_class_check_context_used (cfg, klass);
10532 if (mono_class_is_nullable (klass)) {
10535 val = handle_unbox_nullable (cfg, *sp, klass, context_used);
10536 EMIT_NEW_VARLOADA (cfg, ins, get_vreg_to_inst (cfg, val->dreg), &val->klass->byval_arg);
10540 ins = handle_unbox (cfg, klass, sp, context_used);
10553 MonoClassField *field;
10554 #ifndef DISABLE_REMOTING
10558 gboolean is_instance;
10560 gpointer addr = NULL;
10561 gboolean is_special_static;
10563 MonoInst *store_val = NULL;
10564 MonoInst *thread_ins;
10567 is_instance = (op == CEE_LDFLD || op == CEE_LDFLDA || op == CEE_STFLD);
10569 if (op == CEE_STFLD) {
10572 store_val = sp [1];
10577 if (sp [0]->type == STACK_I4 || sp [0]->type == STACK_I8 || sp [0]->type == STACK_R8)
10579 if (*ip != CEE_LDFLD && sp [0]->type == STACK_VTYPE)
10582 if (op == CEE_STSFLD) {
10585 store_val = sp [0];
10590 token = read32 (ip + 1);
10591 if (method->wrapper_type != MONO_WRAPPER_NONE) {
10592 field = (MonoClassField *)mono_method_get_wrapper_data (method, token);
10593 klass = field->parent;
10596 field = mono_field_from_token_checked (image, token, &klass, generic_context, &cfg->error);
10599 if (!dont_verify && !cfg->skip_visibility && !mono_method_can_access_field (method, field))
10600 FIELD_ACCESS_FAILURE (method, field);
10601 mono_class_init (klass);
10603 /* if the class is Critical then transparent code cannot access it's fields */
10604 if (!is_instance && mono_security_core_clr_enabled ())
10605 ensure_method_is_allowed_to_access_field (cfg, method, field);
10607 /* XXX this is technically required but, so far (SL2), no [SecurityCritical] types (not many exists) have
10608 any visible *instance* field (in fact there's a single case for a static field in Marshal) XXX
10609 if (mono_security_core_clr_enabled ())
10610 ensure_method_is_allowed_to_access_field (cfg, method, field);
10613 ftype = mono_field_get_type (field);
10616 * LDFLD etc. is usable on static fields as well, so convert those cases to
10619 if (is_instance && ftype->attrs & FIELD_ATTRIBUTE_STATIC) {
10631 g_assert_not_reached ();
10633 is_instance = FALSE;
10636 context_used = mini_class_check_context_used (cfg, klass);
10638 /* INSTANCE CASE */
10640 foffset = klass->valuetype? field->offset - sizeof (MonoObject): field->offset;
10641 if (op == CEE_STFLD) {
10642 if (target_type_is_incompatible (cfg, field->type, sp [1]))
10644 #ifndef DISABLE_REMOTING
10645 if ((mono_class_is_marshalbyref (klass) && !MONO_CHECK_THIS (sp [0])) || mono_class_is_contextbound (klass) || klass == mono_defaults.marshalbyrefobject_class) {
10646 MonoMethod *stfld_wrapper = mono_marshal_get_stfld_wrapper (field->type);
10647 MonoInst *iargs [5];
10649 GSHAREDVT_FAILURE (op);
10651 iargs [0] = sp [0];
10652 EMIT_NEW_CLASSCONST (cfg, iargs [1], klass);
10653 EMIT_NEW_FIELDCONST (cfg, iargs [2], field);
10654 EMIT_NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) :
10656 iargs [4] = sp [1];
10658 if (cfg->opt & MONO_OPT_INLINE || cfg->compile_aot) {
10659 costs = inline_method (cfg, stfld_wrapper, mono_method_signature (stfld_wrapper),
10660 iargs, ip, cfg->real_offset, TRUE);
10661 CHECK_CFG_EXCEPTION;
10662 g_assert (costs > 0);
10664 cfg->real_offset += 5;
10666 inline_costs += costs;
10668 mono_emit_method_call (cfg, stfld_wrapper, iargs, NULL);
10673 MonoInst *store, *wbarrier_ptr_ins = NULL;
10675 MONO_EMIT_NULL_CHECK (cfg, sp [0]->dreg);
10677 if (ins_flag & MONO_INST_VOLATILE) {
10678 /* Volatile stores have release semantics, see 12.6.7 in Ecma 335 */
10679 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_REL);
10682 if (mini_is_gsharedvt_klass (klass)) {
10683 MonoInst *offset_ins;
10685 context_used = mini_class_check_context_used (cfg, klass);
10687 offset_ins = emit_get_gsharedvt_info (cfg, field, MONO_RGCTX_INFO_FIELD_OFFSET);
10688 /* The value is offset by 1 */
10689 EMIT_NEW_BIALU_IMM (cfg, ins, OP_PSUB_IMM, offset_ins->dreg, offset_ins->dreg, 1);
10690 dreg = alloc_ireg_mp (cfg);
10691 EMIT_NEW_BIALU (cfg, ins, OP_PADD, dreg, sp [0]->dreg, offset_ins->dreg);
10692 wbarrier_ptr_ins = ins;
10693 /* The decomposition will call mini_emit_stobj () which will emit a wbarrier if needed */
10694 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, store, field->type, dreg, 0, sp [1]->dreg);
10696 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, store, field->type, sp [0]->dreg, foffset, sp [1]->dreg);
10698 if (sp [0]->opcode != OP_LDADDR)
10699 store->flags |= MONO_INST_FAULT;
10701 if (cfg->gen_write_barriers && mini_type_to_stind (cfg, field->type) == CEE_STIND_REF && !MONO_INS_IS_PCONST_NULL (sp [1])) {
10702 if (mini_is_gsharedvt_klass (klass)) {
10703 g_assert (wbarrier_ptr_ins);
10704 emit_write_barrier (cfg, wbarrier_ptr_ins, sp [1]);
10706 /* insert call to write barrier */
10710 dreg = alloc_ireg_mp (cfg);
10711 EMIT_NEW_BIALU_IMM (cfg, ptr, OP_PADD_IMM, dreg, sp [0]->dreg, foffset);
10712 emit_write_barrier (cfg, ptr, sp [1]);
10716 store->flags |= ins_flag;
10723 #ifndef DISABLE_REMOTING
10724 if (is_instance && ((mono_class_is_marshalbyref (klass) && !MONO_CHECK_THIS (sp [0])) || mono_class_is_contextbound (klass) || klass == mono_defaults.marshalbyrefobject_class)) {
10725 MonoMethod *wrapper = (op == CEE_LDFLDA) ? mono_marshal_get_ldflda_wrapper (field->type) : mono_marshal_get_ldfld_wrapper (field->type);
10726 MonoInst *iargs [4];
10728 GSHAREDVT_FAILURE (op);
10730 iargs [0] = sp [0];
10731 EMIT_NEW_CLASSCONST (cfg, iargs [1], klass);
10732 EMIT_NEW_FIELDCONST (cfg, iargs [2], field);
10733 EMIT_NEW_ICONST (cfg, iargs [3], klass->valuetype ? field->offset - sizeof (MonoObject) : field->offset);
10734 if (cfg->opt & MONO_OPT_INLINE || cfg->compile_aot) {
10735 costs = inline_method (cfg, wrapper, mono_method_signature (wrapper),
10736 iargs, ip, cfg->real_offset, TRUE);
10737 CHECK_CFG_EXCEPTION;
10738 g_assert (costs > 0);
10740 cfg->real_offset += 5;
10744 inline_costs += costs;
10746 ins = mono_emit_method_call (cfg, wrapper, iargs, NULL);
10752 if (sp [0]->type == STACK_VTYPE) {
10755 /* Have to compute the address of the variable */
10757 var = get_vreg_to_inst (cfg, sp [0]->dreg);
10759 var = mono_compile_create_var_for_vreg (cfg, &klass->byval_arg, OP_LOCAL, sp [0]->dreg);
10761 g_assert (var->klass == klass);
10763 EMIT_NEW_VARLOADA (cfg, ins, var, &var->klass->byval_arg);
10767 if (op == CEE_LDFLDA) {
10768 if (sp [0]->type == STACK_OBJ) {
10769 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, sp [0]->dreg, 0);
10770 MONO_EMIT_NEW_COND_EXC (cfg, EQ, "NullReferenceException");
10773 dreg = alloc_ireg_mp (cfg);
10775 if (mini_is_gsharedvt_klass (klass)) {
10776 MonoInst *offset_ins;
10778 offset_ins = emit_get_gsharedvt_info (cfg, field, MONO_RGCTX_INFO_FIELD_OFFSET);
10779 /* The value is offset by 1 */
10780 EMIT_NEW_BIALU_IMM (cfg, ins, OP_PSUB_IMM, offset_ins->dreg, offset_ins->dreg, 1);
10781 EMIT_NEW_BIALU (cfg, ins, OP_PADD, dreg, sp [0]->dreg, offset_ins->dreg);
10783 EMIT_NEW_BIALU_IMM (cfg, ins, OP_PADD_IMM, dreg, sp [0]->dreg, foffset);
10785 ins->klass = mono_class_from_mono_type (field->type);
10786 ins->type = STACK_MP;
10791 MONO_EMIT_NULL_CHECK (cfg, sp [0]->dreg);
10793 if (sp [0]->opcode == OP_LDADDR && klass->simd_type && cfg->opt & MONO_OPT_SIMD) {
10794 ins = mono_emit_simd_field_load (cfg, field, sp [0]);
10803 if (mini_is_gsharedvt_klass (klass)) {
10804 MonoInst *offset_ins;
10806 offset_ins = emit_get_gsharedvt_info (cfg, field, MONO_RGCTX_INFO_FIELD_OFFSET);
10807 /* The value is offset by 1 */
10808 EMIT_NEW_BIALU_IMM (cfg, ins, OP_PSUB_IMM, offset_ins->dreg, offset_ins->dreg, 1);
10809 dreg = alloc_ireg_mp (cfg);
10810 EMIT_NEW_BIALU (cfg, ins, OP_PADD, dreg, sp [0]->dreg, offset_ins->dreg);
10811 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, load, field->type, dreg, 0);
10813 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, load, field->type, sp [0]->dreg, foffset);
10815 load->flags |= ins_flag;
10816 if (sp [0]->opcode != OP_LDADDR)
10817 load->flags |= MONO_INST_FAULT;
10829 context_used = mini_class_check_context_used (cfg, klass);
10831 if (ftype->attrs & FIELD_ATTRIBUTE_LITERAL) {
10832 mono_error_set_field_load (&cfg->error, field->parent, field->name, "Using static instructions with literal field");
10836 /* The special_static_fields field is init'd in mono_class_vtable, so it needs
10837 * to be called here.
10839 if (!context_used && !(cfg->opt & MONO_OPT_SHARED)) {
10840 mono_class_vtable (cfg->domain, klass);
10841 CHECK_TYPELOAD (klass);
10843 mono_domain_lock (cfg->domain);
10844 if (cfg->domain->special_static_fields)
10845 addr = g_hash_table_lookup (cfg->domain->special_static_fields, field);
10846 mono_domain_unlock (cfg->domain);
10848 is_special_static = mono_class_field_is_special_static (field);
10850 if (is_special_static && ((gsize)addr & 0x80000000) == 0)
10851 thread_ins = mono_create_tls_get (cfg, TLS_KEY_THREAD);
10855 /* Generate IR to compute the field address */
10856 if (is_special_static && ((gsize)addr & 0x80000000) == 0 && thread_ins && !(cfg->opt & MONO_OPT_SHARED) && !context_used) {
10858 * Fast access to TLS data
10859 * Inline version of get_thread_static_data () in
10863 int idx, static_data_reg, array_reg, dreg;
10865 GSHAREDVT_FAILURE (op);
10867 static_data_reg = alloc_ireg (cfg);
10868 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, static_data_reg, thread_ins->dreg, MONO_STRUCT_OFFSET (MonoInternalThread, static_data));
10870 if (cfg->compile_aot) {
10871 int offset_reg, offset2_reg, idx_reg;
10873 /* For TLS variables, this will return the TLS offset */
10874 EMIT_NEW_SFLDACONST (cfg, ins, field);
10875 offset_reg = ins->dreg;
10876 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_IAND_IMM, offset_reg, offset_reg, 0x7fffffff);
10877 idx_reg = alloc_ireg (cfg);
10878 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_IAND_IMM, idx_reg, offset_reg, 0x3f);
10879 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ISHL_IMM, idx_reg, idx_reg, sizeof (gpointer) == 8 ? 3 : 2);
10880 MONO_EMIT_NEW_BIALU (cfg, OP_PADD, static_data_reg, static_data_reg, idx_reg);
10881 array_reg = alloc_ireg (cfg);
10882 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, array_reg, static_data_reg, 0);
10883 offset2_reg = alloc_ireg (cfg);
10884 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ISHR_UN_IMM, offset2_reg, offset_reg, 6);
10885 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_IAND_IMM, offset2_reg, offset2_reg, 0x1ffffff);
10886 dreg = alloc_ireg (cfg);
10887 EMIT_NEW_BIALU (cfg, ins, OP_PADD, dreg, array_reg, offset2_reg);
10889 offset = (gsize)addr & 0x7fffffff;
10890 idx = offset & 0x3f;
10892 array_reg = alloc_ireg (cfg);
10893 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, array_reg, static_data_reg, idx * sizeof (gpointer));
10894 dreg = alloc_ireg (cfg);
10895 EMIT_NEW_BIALU_IMM (cfg, ins, OP_ADD_IMM, dreg, array_reg, ((offset >> 6) & 0x1ffffff));
10897 } else if ((cfg->opt & MONO_OPT_SHARED) ||
10898 (cfg->compile_aot && is_special_static) ||
10899 (context_used && is_special_static)) {
10900 MonoInst *iargs [2];
10902 g_assert (field->parent);
10903 EMIT_NEW_DOMAINCONST (cfg, iargs [0]);
10904 if (context_used) {
10905 iargs [1] = emit_get_rgctx_field (cfg, context_used,
10906 field, MONO_RGCTX_INFO_CLASS_FIELD);
10908 EMIT_NEW_FIELDCONST (cfg, iargs [1], field);
10910 ins = mono_emit_jit_icall (cfg, mono_class_static_field_address, iargs);
10911 } else if (context_used) {
10912 MonoInst *static_data;
10915 g_print ("sharing static field access in %s.%s.%s - depth %d offset %d\n",
10916 method->klass->name_space, method->klass->name, method->name,
10917 depth, field->offset);
10920 if (mono_class_needs_cctor_run (klass, method))
10921 emit_class_init (cfg, klass);
10924 * The pointer we're computing here is
10926 * super_info.static_data + field->offset
10928 static_data = mini_emit_get_rgctx_klass (cfg, context_used,
10929 klass, MONO_RGCTX_INFO_STATIC_DATA);
10931 if (mini_is_gsharedvt_klass (klass)) {
10932 MonoInst *offset_ins;
10934 offset_ins = emit_get_rgctx_field (cfg, context_used, field, MONO_RGCTX_INFO_FIELD_OFFSET);
10935 /* The value is offset by 1 */
10936 EMIT_NEW_BIALU_IMM (cfg, ins, OP_PSUB_IMM, offset_ins->dreg, offset_ins->dreg, 1);
10937 dreg = alloc_ireg_mp (cfg);
10938 EMIT_NEW_BIALU (cfg, ins, OP_PADD, dreg, static_data->dreg, offset_ins->dreg);
10939 } else if (field->offset == 0) {
10942 int addr_reg = mono_alloc_preg (cfg);
10943 EMIT_NEW_BIALU_IMM (cfg, ins, OP_PADD_IMM, addr_reg, static_data->dreg, field->offset);
10945 } else if ((cfg->opt & MONO_OPT_SHARED) || (cfg->compile_aot && addr)) {
10946 MonoInst *iargs [2];
10948 g_assert (field->parent);
10949 EMIT_NEW_DOMAINCONST (cfg, iargs [0]);
10950 EMIT_NEW_FIELDCONST (cfg, iargs [1], field);
10951 ins = mono_emit_jit_icall (cfg, mono_class_static_field_address, iargs);
10953 MonoVTable *vtable = NULL;
10955 if (!cfg->compile_aot)
10956 vtable = mono_class_vtable (cfg->domain, klass);
10957 CHECK_TYPELOAD (klass);
10960 if (mini_field_access_needs_cctor_run (cfg, method, klass, vtable)) {
10961 if (!(g_slist_find (class_inits, klass))) {
10962 emit_class_init (cfg, klass);
10963 if (cfg->verbose_level > 2)
10964 printf ("class %s.%s needs init call for %s\n", klass->name_space, klass->name, mono_field_get_name (field));
10965 class_inits = g_slist_prepend (class_inits, klass);
10968 if (cfg->run_cctors) {
10969 /* This makes so that inline cannot trigger */
10970 /* .cctors: too many apps depend on them */
10971 /* running with a specific order... */
10973 if (! vtable->initialized)
10974 INLINE_FAILURE ("class init");
10975 if (!mono_runtime_class_init_full (vtable, &cfg->error)) {
10976 mono_cfg_set_exception (cfg, MONO_EXCEPTION_MONO_ERROR);
10977 goto exception_exit;
10981 if (cfg->compile_aot)
10982 EMIT_NEW_SFLDACONST (cfg, ins, field);
10985 addr = (char*)mono_vtable_get_static_field_data (vtable) + field->offset;
10987 EMIT_NEW_PCONST (cfg, ins, addr);
10990 MonoInst *iargs [1];
10991 EMIT_NEW_ICONST (cfg, iargs [0], GPOINTER_TO_UINT (addr));
10992 ins = mono_emit_jit_icall (cfg, mono_get_special_static_data, iargs);
10996 /* Generate IR to do the actual load/store operation */
10998 if ((op == CEE_STFLD || op == CEE_STSFLD) && (ins_flag & MONO_INST_VOLATILE)) {
10999 /* Volatile stores have release semantics, see 12.6.7 in Ecma 335 */
11000 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_REL);
11003 if (op == CEE_LDSFLDA) {
11004 ins->klass = mono_class_from_mono_type (ftype);
11005 ins->type = STACK_PTR;
11007 } else if (op == CEE_STSFLD) {
11010 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, store, ftype, ins->dreg, 0, store_val->dreg);
11011 store->flags |= ins_flag;
11013 gboolean is_const = FALSE;
11014 MonoVTable *vtable = NULL;
11015 gpointer addr = NULL;
11017 if (!context_used) {
11018 vtable = mono_class_vtable (cfg->domain, klass);
11019 CHECK_TYPELOAD (klass);
11021 if ((ftype->attrs & FIELD_ATTRIBUTE_INIT_ONLY) && (((addr = mono_aot_readonly_field_override (field)) != NULL) ||
11022 (!context_used && !((cfg->opt & MONO_OPT_SHARED) || cfg->compile_aot) && vtable->initialized))) {
11023 int ro_type = ftype->type;
11025 addr = (char*)mono_vtable_get_static_field_data (vtable) + field->offset;
11026 if (ro_type == MONO_TYPE_VALUETYPE && ftype->data.klass->enumtype) {
11027 ro_type = mono_class_enum_basetype (ftype->data.klass)->type;
11030 GSHAREDVT_FAILURE (op);
11032 /* printf ("RO-FIELD %s.%s:%s\n", klass->name_space, klass->name, mono_field_get_name (field));*/
11035 case MONO_TYPE_BOOLEAN:
11037 EMIT_NEW_ICONST (cfg, *sp, *((guint8 *)addr));
11041 EMIT_NEW_ICONST (cfg, *sp, *((gint8 *)addr));
11044 case MONO_TYPE_CHAR:
11046 EMIT_NEW_ICONST (cfg, *sp, *((guint16 *)addr));
11050 EMIT_NEW_ICONST (cfg, *sp, *((gint16 *)addr));
11055 EMIT_NEW_ICONST (cfg, *sp, *((gint32 *)addr));
11059 EMIT_NEW_ICONST (cfg, *sp, *((guint32 *)addr));
11064 case MONO_TYPE_PTR:
11065 case MONO_TYPE_FNPTR:
11066 EMIT_NEW_PCONST (cfg, *sp, *((gpointer *)addr));
11067 type_to_eval_stack_type ((cfg), field->type, *sp);
11070 case MONO_TYPE_STRING:
11071 case MONO_TYPE_OBJECT:
11072 case MONO_TYPE_CLASS:
11073 case MONO_TYPE_SZARRAY:
11074 case MONO_TYPE_ARRAY:
11075 if (!mono_gc_is_moving ()) {
11076 EMIT_NEW_PCONST (cfg, *sp, *((gpointer *)addr));
11077 type_to_eval_stack_type ((cfg), field->type, *sp);
11085 EMIT_NEW_I8CONST (cfg, *sp, *((gint64 *)addr));
11090 case MONO_TYPE_VALUETYPE:
11100 CHECK_STACK_OVF (1);
11102 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, load, field->type, ins->dreg, 0);
11103 load->flags |= ins_flag;
11109 if ((op == CEE_LDFLD || op == CEE_LDSFLD) && (ins_flag & MONO_INST_VOLATILE)) {
11110 /* Volatile loads have acquire semantics, see 12.6.7 in Ecma 335 */
11111 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_ACQ);
11122 token = read32 (ip + 1);
11123 klass = mini_get_class (method, token, generic_context);
11124 CHECK_TYPELOAD (klass);
11125 if (ins_flag & MONO_INST_VOLATILE) {
11126 /* Volatile stores have release semantics, see 12.6.7 in Ecma 335 */
11127 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_REL);
11129 /* FIXME: should check item at sp [1] is compatible with the type of the store. */
11130 EMIT_NEW_STORE_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, sp [0]->dreg, 0, sp [1]->dreg);
11131 ins->flags |= ins_flag;
11132 if (cfg->gen_write_barriers && cfg->method->wrapper_type != MONO_WRAPPER_WRITE_BARRIER &&
11133 generic_class_is_reference_type (cfg, klass) && !MONO_INS_IS_PCONST_NULL (sp [1])) {
11134 /* insert call to write barrier */
11135 emit_write_barrier (cfg, sp [0], sp [1]);
11147 const char *data_ptr;
11149 guint32 field_token;
11155 token = read32 (ip + 1);
11157 klass = mini_get_class (method, token, generic_context);
11158 CHECK_TYPELOAD (klass);
11160 context_used = mini_class_check_context_used (cfg, klass);
11162 if (sp [0]->type == STACK_I8 || (SIZEOF_VOID_P == 8 && sp [0]->type == STACK_PTR)) {
11163 MONO_INST_NEW (cfg, ins, OP_LCONV_TO_OVF_U4);
11164 ins->sreg1 = sp [0]->dreg;
11165 ins->type = STACK_I4;
11166 ins->dreg = alloc_ireg (cfg);
11167 MONO_ADD_INS (cfg->cbb, ins);
11168 *sp = mono_decompose_opcode (cfg, ins);
11171 if (context_used) {
11172 MonoInst *args [3];
11173 MonoClass *array_class = mono_array_class_get (klass, 1);
11174 MonoMethod *managed_alloc = mono_gc_get_managed_array_allocator (array_class);
11176 /* FIXME: Use OP_NEWARR and decompose later to help abcrem */
11179 args [0] = mini_emit_get_rgctx_klass (cfg, context_used,
11180 array_class, MONO_RGCTX_INFO_VTABLE);
11185 ins = mono_emit_method_call (cfg, managed_alloc, args, NULL);
11187 ins = mono_emit_jit_icall (cfg, ves_icall_array_new_specific, args);
11189 if (cfg->opt & MONO_OPT_SHARED) {
11190 /* Decompose now to avoid problems with references to the domainvar */
11191 MonoInst *iargs [3];
11193 EMIT_NEW_DOMAINCONST (cfg, iargs [0]);
11194 EMIT_NEW_CLASSCONST (cfg, iargs [1], klass);
11195 iargs [2] = sp [0];
11197 ins = mono_emit_jit_icall (cfg, ves_icall_array_new, iargs);
11199 /* Decompose later since it is needed by abcrem */
11200 MonoClass *array_type = mono_array_class_get (klass, 1);
11201 mono_class_vtable (cfg->domain, array_type);
11202 CHECK_TYPELOAD (array_type);
11204 MONO_INST_NEW (cfg, ins, OP_NEWARR);
11205 ins->dreg = alloc_ireg_ref (cfg);
11206 ins->sreg1 = sp [0]->dreg;
11207 ins->inst_newa_class = klass;
11208 ins->type = STACK_OBJ;
11209 ins->klass = array_type;
11210 MONO_ADD_INS (cfg->cbb, ins);
11211 cfg->flags |= MONO_CFG_HAS_ARRAY_ACCESS;
11212 cfg->cbb->has_array_access = TRUE;
11214 /* Needed so mono_emit_load_get_addr () gets called */
11215 mono_get_got_var (cfg);
11225 * we inline/optimize the initialization sequence if possible.
11226 * we should also allocate the array as not cleared, since we spend as much time clearing to 0 as initializing
11227 * for small sizes open code the memcpy
11228 * ensure the rva field is big enough
11230 if ((cfg->opt & MONO_OPT_INTRINS) && ip + 6 < end && ip_in_bb (cfg, cfg->cbb, ip + 6) && (len_ins->opcode == OP_ICONST) && (data_ptr = initialize_array_data (method, cfg->compile_aot, ip, klass, len_ins->inst_c0, &data_size, &field_token))) {
11231 MonoMethod *memcpy_method = get_memcpy_method ();
11232 MonoInst *iargs [3];
11233 int add_reg = alloc_ireg_mp (cfg);
11235 EMIT_NEW_BIALU_IMM (cfg, iargs [0], OP_PADD_IMM, add_reg, ins->dreg, MONO_STRUCT_OFFSET (MonoArray, vector));
11236 if (cfg->compile_aot) {
11237 EMIT_NEW_AOTCONST_TOKEN (cfg, iargs [1], MONO_PATCH_INFO_RVA, method->klass->image, GPOINTER_TO_UINT(field_token), STACK_PTR, NULL);
11239 EMIT_NEW_PCONST (cfg, iargs [1], (char*)data_ptr);
11241 EMIT_NEW_ICONST (cfg, iargs [2], data_size);
11242 mono_emit_method_call (cfg, memcpy_method, iargs, NULL);
11251 if (sp [0]->type != STACK_OBJ)
11254 MONO_INST_NEW (cfg, ins, OP_LDLEN);
11255 ins->dreg = alloc_preg (cfg);
11256 ins->sreg1 = sp [0]->dreg;
11257 ins->type = STACK_I4;
11258 /* This flag will be inherited by the decomposition */
11259 ins->flags |= MONO_INST_FAULT;
11260 MONO_ADD_INS (cfg->cbb, ins);
11261 cfg->flags |= MONO_CFG_HAS_ARRAY_ACCESS;
11262 cfg->cbb->has_array_access = TRUE;
11270 if (sp [0]->type != STACK_OBJ)
11273 cfg->flags |= MONO_CFG_HAS_LDELEMA;
11275 klass = mini_get_class (method, read32 (ip + 1), generic_context);
11276 CHECK_TYPELOAD (klass);
11277 /* we need to make sure that this array is exactly the type it needs
11278 * to be for correctness. the wrappers are lax with their usage
11279 * so we need to ignore them here
11281 if (!klass->valuetype && method->wrapper_type == MONO_WRAPPER_NONE && !readonly) {
11282 MonoClass *array_class = mono_array_class_get (klass, 1);
11283 mini_emit_check_array_type (cfg, sp [0], array_class);
11284 CHECK_TYPELOAD (array_class);
11288 ins = mini_emit_ldelema_1_ins (cfg, klass, sp [0], sp [1], TRUE);
11293 case CEE_LDELEM_I1:
11294 case CEE_LDELEM_U1:
11295 case CEE_LDELEM_I2:
11296 case CEE_LDELEM_U2:
11297 case CEE_LDELEM_I4:
11298 case CEE_LDELEM_U4:
11299 case CEE_LDELEM_I8:
11301 case CEE_LDELEM_R4:
11302 case CEE_LDELEM_R8:
11303 case CEE_LDELEM_REF: {
11309 if (*ip == CEE_LDELEM) {
11311 token = read32 (ip + 1);
11312 klass = mini_get_class (method, token, generic_context);
11313 CHECK_TYPELOAD (klass);
11314 mono_class_init (klass);
11317 klass = array_access_to_klass (*ip);
11319 if (sp [0]->type != STACK_OBJ)
11322 cfg->flags |= MONO_CFG_HAS_LDELEMA;
11324 if (mini_is_gsharedvt_variable_klass (klass)) {
11325 // FIXME-VT: OP_ICONST optimization
11326 addr = mini_emit_ldelema_1_ins (cfg, klass, sp [0], sp [1], TRUE);
11327 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, addr->dreg, 0);
11328 ins->opcode = OP_LOADV_MEMBASE;
11329 } else if (sp [1]->opcode == OP_ICONST) {
11330 int array_reg = sp [0]->dreg;
11331 int index_reg = sp [1]->dreg;
11332 int offset = (mono_class_array_element_size (klass) * sp [1]->inst_c0) + MONO_STRUCT_OFFSET (MonoArray, vector);
11334 if (SIZEOF_REGISTER == 8 && COMPILE_LLVM (cfg))
11335 MONO_EMIT_NEW_UNALU (cfg, OP_ZEXT_I4, index_reg, index_reg);
11337 MONO_EMIT_BOUNDS_CHECK (cfg, array_reg, MonoArray, max_length, index_reg);
11338 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, array_reg, offset);
11340 addr = mini_emit_ldelema_1_ins (cfg, klass, sp [0], sp [1], TRUE);
11341 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &klass->byval_arg, addr->dreg, 0);
11344 if (*ip == CEE_LDELEM)
11351 case CEE_STELEM_I1:
11352 case CEE_STELEM_I2:
11353 case CEE_STELEM_I4:
11354 case CEE_STELEM_I8:
11355 case CEE_STELEM_R4:
11356 case CEE_STELEM_R8:
11357 case CEE_STELEM_REF:
11362 cfg->flags |= MONO_CFG_HAS_LDELEMA;
11364 if (*ip == CEE_STELEM) {
11366 token = read32 (ip + 1);
11367 klass = mini_get_class (method, token, generic_context);
11368 CHECK_TYPELOAD (klass);
11369 mono_class_init (klass);
11372 klass = array_access_to_klass (*ip);
11374 if (sp [0]->type != STACK_OBJ)
11377 emit_array_store (cfg, klass, sp, TRUE);
11379 if (*ip == CEE_STELEM)
11386 case CEE_CKFINITE: {
11390 if (cfg->llvm_only) {
11391 MonoInst *iargs [1];
11393 iargs [0] = sp [0];
11394 *sp++ = mono_emit_jit_icall (cfg, mono_ckfinite, iargs);
11396 MONO_INST_NEW (cfg, ins, OP_CKFINITE);
11397 ins->sreg1 = sp [0]->dreg;
11398 ins->dreg = alloc_freg (cfg);
11399 ins->type = STACK_R8;
11400 MONO_ADD_INS (cfg->cbb, ins);
11402 *sp++ = mono_decompose_opcode (cfg, ins);
11408 case CEE_REFANYVAL: {
11409 MonoInst *src_var, *src;
11411 int klass_reg = alloc_preg (cfg);
11412 int dreg = alloc_preg (cfg);
11414 GSHAREDVT_FAILURE (*ip);
11417 MONO_INST_NEW (cfg, ins, *ip);
11420 klass = mini_get_class (method, read32 (ip + 1), generic_context);
11421 CHECK_TYPELOAD (klass);
11423 context_used = mini_class_check_context_used (cfg, klass);
11426 src_var = get_vreg_to_inst (cfg, sp [0]->dreg);
11428 src_var = mono_compile_create_var_for_vreg (cfg, &mono_defaults.typed_reference_class->byval_arg, OP_LOCAL, sp [0]->dreg);
11429 EMIT_NEW_VARLOADA (cfg, src, src_var, src_var->inst_vtype);
11430 MONO_EMIT_NEW_LOAD_MEMBASE (cfg, klass_reg, src->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, klass));
11432 if (context_used) {
11433 MonoInst *klass_ins;
11435 klass_ins = mini_emit_get_rgctx_klass (cfg, context_used,
11436 klass, MONO_RGCTX_INFO_KLASS);
11439 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, klass_reg, klass_ins->dreg);
11440 MONO_EMIT_NEW_COND_EXC (cfg, NE_UN, "InvalidCastException");
11442 mini_emit_class_check (cfg, klass_reg, klass);
11444 EMIT_NEW_LOAD_MEMBASE (cfg, ins, OP_LOAD_MEMBASE, dreg, src->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, value));
11445 ins->type = STACK_MP;
11446 ins->klass = klass;
11451 case CEE_MKREFANY: {
11452 MonoInst *loc, *addr;
11454 GSHAREDVT_FAILURE (*ip);
11457 MONO_INST_NEW (cfg, ins, *ip);
11460 klass = mini_get_class (method, read32 (ip + 1), generic_context);
11461 CHECK_TYPELOAD (klass);
11463 context_used = mini_class_check_context_used (cfg, klass);
11465 loc = mono_compile_create_var (cfg, &mono_defaults.typed_reference_class->byval_arg, OP_LOCAL);
11466 EMIT_NEW_TEMPLOADA (cfg, addr, loc->inst_c0);
11468 if (context_used) {
11469 MonoInst *const_ins;
11470 int type_reg = alloc_preg (cfg);
11472 const_ins = mini_emit_get_rgctx_klass (cfg, context_used, klass, MONO_RGCTX_INFO_KLASS);
11473 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREP_MEMBASE_REG, addr->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, klass), const_ins->dreg);
11474 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, type_reg, const_ins->dreg, MONO_STRUCT_OFFSET (MonoClass, byval_arg));
11475 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREP_MEMBASE_REG, addr->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, type), type_reg);
11477 int const_reg = alloc_preg (cfg);
11478 int type_reg = alloc_preg (cfg);
11480 MONO_EMIT_NEW_CLASSCONST (cfg, const_reg, klass);
11481 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREP_MEMBASE_REG, addr->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, klass), const_reg);
11482 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ADD_IMM, type_reg, const_reg, MONO_STRUCT_OFFSET (MonoClass, byval_arg));
11483 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREP_MEMBASE_REG, addr->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, type), type_reg);
11485 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREP_MEMBASE_REG, addr->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, value), sp [0]->dreg);
11487 EMIT_NEW_TEMPLOAD (cfg, ins, loc->inst_c0);
11488 ins->type = STACK_VTYPE;
11489 ins->klass = mono_defaults.typed_reference_class;
11494 case CEE_LDTOKEN: {
11496 MonoClass *handle_class;
11498 CHECK_STACK_OVF (1);
11501 n = read32 (ip + 1);
11503 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD ||
11504 method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED) {
11505 handle = mono_method_get_wrapper_data (method, n);
11506 handle_class = (MonoClass *)mono_method_get_wrapper_data (method, n + 1);
11507 if (handle_class == mono_defaults.typehandle_class)
11508 handle = &((MonoClass*)handle)->byval_arg;
11511 handle = mono_ldtoken_checked (image, n, &handle_class, generic_context, &cfg->error);
11516 mono_class_init (handle_class);
11517 if (cfg->gshared) {
11518 if (mono_metadata_token_table (n) == MONO_TABLE_TYPEDEF ||
11519 mono_metadata_token_table (n) == MONO_TABLE_TYPEREF) {
11520 /* This case handles ldtoken
11521 of an open type, like for
11524 } else if (handle_class == mono_defaults.typehandle_class) {
11525 context_used = mini_class_check_context_used (cfg, mono_class_from_mono_type ((MonoType *)handle));
11526 } else if (handle_class == mono_defaults.fieldhandle_class)
11527 context_used = mini_class_check_context_used (cfg, ((MonoClassField*)handle)->parent);
11528 else if (handle_class == mono_defaults.methodhandle_class)
11529 context_used = mini_method_check_context_used (cfg, (MonoMethod *)handle);
11531 g_assert_not_reached ();
11534 if ((cfg->opt & MONO_OPT_SHARED) &&
11535 method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD &&
11536 method->wrapper_type != MONO_WRAPPER_SYNCHRONIZED) {
11537 MonoInst *addr, *vtvar, *iargs [3];
11538 int method_context_used;
11540 method_context_used = mini_method_check_context_used (cfg, method);
11542 vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
11544 EMIT_NEW_IMAGECONST (cfg, iargs [0], image);
11545 EMIT_NEW_ICONST (cfg, iargs [1], n);
11546 if (method_context_used) {
11547 iargs [2] = emit_get_rgctx_method (cfg, method_context_used,
11548 method, MONO_RGCTX_INFO_METHOD);
11549 ins = mono_emit_jit_icall (cfg, mono_ldtoken_wrapper_generic_shared, iargs);
11551 EMIT_NEW_PCONST (cfg, iargs [2], generic_context);
11552 ins = mono_emit_jit_icall (cfg, mono_ldtoken_wrapper, iargs);
11554 EMIT_NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
11556 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, addr->dreg, 0, ins->dreg);
11558 EMIT_NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
11560 if ((ip + 5 < end) && ip_in_bb (cfg, cfg->cbb, ip + 5) &&
11561 ((ip [5] == CEE_CALL) || (ip [5] == CEE_CALLVIRT)) &&
11562 (cmethod = mini_get_method (cfg, method, read32 (ip + 6), NULL, generic_context)) &&
11563 (cmethod->klass == mono_defaults.systemtype_class) &&
11564 (strcmp (cmethod->name, "GetTypeFromHandle") == 0)) {
11565 MonoClass *tclass = mono_class_from_mono_type ((MonoType *)handle);
11567 mono_class_init (tclass);
11568 if (context_used) {
11569 ins = mini_emit_get_rgctx_klass (cfg, context_used,
11570 tclass, MONO_RGCTX_INFO_REFLECTION_TYPE);
11571 } else if (cfg->compile_aot) {
11572 if (method->wrapper_type) {
11573 mono_error_init (&error); //got to do it since there are multiple conditionals below
11574 if (mono_class_get_checked (tclass->image, tclass->type_token, &error) == tclass && !generic_context) {
11575 /* Special case for static synchronized wrappers */
11576 EMIT_NEW_TYPE_FROM_HANDLE_CONST (cfg, ins, tclass->image, tclass->type_token, generic_context);
11578 mono_error_cleanup (&error); /* FIXME don't swallow the error */
11579 /* FIXME: n is not a normal token */
11581 EMIT_NEW_PCONST (cfg, ins, NULL);
11584 EMIT_NEW_TYPE_FROM_HANDLE_CONST (cfg, ins, image, n, generic_context);
11587 MonoReflectionType *rt = mono_type_get_object_checked (cfg->domain, (MonoType *)handle, &cfg->error);
11589 EMIT_NEW_PCONST (cfg, ins, rt);
11591 ins->type = STACK_OBJ;
11592 ins->klass = cmethod->klass;
11595 MonoInst *addr, *vtvar;
11597 vtvar = mono_compile_create_var (cfg, &handle_class->byval_arg, OP_LOCAL);
11599 if (context_used) {
11600 if (handle_class == mono_defaults.typehandle_class) {
11601 ins = mini_emit_get_rgctx_klass (cfg, context_used,
11602 mono_class_from_mono_type ((MonoType *)handle),
11603 MONO_RGCTX_INFO_TYPE);
11604 } else if (handle_class == mono_defaults.methodhandle_class) {
11605 ins = emit_get_rgctx_method (cfg, context_used,
11606 (MonoMethod *)handle, MONO_RGCTX_INFO_METHOD);
11607 } else if (handle_class == mono_defaults.fieldhandle_class) {
11608 ins = emit_get_rgctx_field (cfg, context_used,
11609 (MonoClassField *)handle, MONO_RGCTX_INFO_CLASS_FIELD);
11611 g_assert_not_reached ();
11613 } else if (cfg->compile_aot) {
11614 EMIT_NEW_LDTOKENCONST (cfg, ins, image, n, generic_context);
11616 EMIT_NEW_PCONST (cfg, ins, handle);
11618 EMIT_NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
11619 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, addr->dreg, 0, ins->dreg);
11620 EMIT_NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
11630 if (sp [-1]->type != STACK_OBJ)
11633 MONO_INST_NEW (cfg, ins, OP_THROW);
11635 ins->sreg1 = sp [0]->dreg;
11637 cfg->cbb->out_of_line = TRUE;
11638 MONO_ADD_INS (cfg->cbb, ins);
11639 MONO_INST_NEW (cfg, ins, OP_NOT_REACHED);
11640 MONO_ADD_INS (cfg->cbb, ins);
11643 link_bblock (cfg, cfg->cbb, end_bblock);
11644 start_new_bblock = 1;
11645 /* This can complicate code generation for llvm since the return value might not be defined */
11646 if (COMPILE_LLVM (cfg))
11647 INLINE_FAILURE ("throw");
11649 case CEE_ENDFINALLY:
11650 if (!ip_in_finally_clause (cfg, ip - header->code))
11652 /* mono_save_seq_point_info () depends on this */
11653 if (sp != stack_start)
11654 emit_seq_point (cfg, method, ip, FALSE, FALSE);
11655 MONO_INST_NEW (cfg, ins, OP_ENDFINALLY);
11656 MONO_ADD_INS (cfg->cbb, ins);
11658 start_new_bblock = 1;
11661 * Control will leave the method so empty the stack, otherwise
11662 * the next basic block will start with a nonempty stack.
11664 while (sp != stack_start) {
11669 case CEE_LEAVE_S: {
11672 if (*ip == CEE_LEAVE) {
11674 target = ip + 5 + (gint32)read32(ip + 1);
11677 target = ip + 2 + (signed char)(ip [1]);
11680 /* empty the stack */
11681 while (sp != stack_start) {
11686 * If this leave statement is in a catch block, check for a
11687 * pending exception, and rethrow it if necessary.
11688 * We avoid doing this in runtime invoke wrappers, since those are called
11689 * by native code which excepts the wrapper to catch all exceptions.
11691 for (i = 0; i < header->num_clauses; ++i) {
11692 MonoExceptionClause *clause = &header->clauses [i];
11695 * Use <= in the final comparison to handle clauses with multiple
11696 * leave statements, like in bug #78024.
11697 * The ordering of the exception clauses guarantees that we find the
11698 * innermost clause.
11700 if (MONO_OFFSET_IN_HANDLER (clause, ip - header->code) && (clause->flags == MONO_EXCEPTION_CLAUSE_NONE) && (ip - header->code + ((*ip == CEE_LEAVE) ? 5 : 2)) <= (clause->handler_offset + clause->handler_len) && method->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE) {
11702 MonoBasicBlock *dont_throw;
11707 NEW_TEMPLOAD (cfg, load, mono_find_exvar_for_offset (cfg, clause->handler_offset)->inst_c0);
11710 exc_ins = mono_emit_jit_icall (cfg, mono_thread_get_undeniable_exception, NULL);
11712 NEW_BBLOCK (cfg, dont_throw);
11715 * Currently, we always rethrow the abort exception, despite the
11716 * fact that this is not correct. See thread6.cs for an example.
11717 * But propagating the abort exception is more important than
11718 * getting the sematics right.
11720 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, exc_ins->dreg, 0);
11721 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, dont_throw);
11722 MONO_EMIT_NEW_UNALU (cfg, OP_THROW, -1, exc_ins->dreg);
11724 MONO_START_BB (cfg, dont_throw);
11729 cfg->cbb->try_end = (intptr_t)(ip - header->code);
11732 if ((handlers = mono_find_final_block (cfg, ip, target, MONO_EXCEPTION_CLAUSE_FINALLY))) {
11734 MonoExceptionClause *clause;
11736 for (tmp = handlers; tmp; tmp = tmp->next) {
11737 clause = (MonoExceptionClause *)tmp->data;
11738 tblock = cfg->cil_offset_to_bb [clause->handler_offset];
11740 link_bblock (cfg, cfg->cbb, tblock);
11741 MONO_INST_NEW (cfg, ins, OP_CALL_HANDLER);
11742 ins->inst_target_bb = tblock;
11743 ins->inst_eh_block = clause;
11744 MONO_ADD_INS (cfg->cbb, ins);
11745 cfg->cbb->has_call_handler = 1;
11746 if (COMPILE_LLVM (cfg)) {
11747 MonoBasicBlock *target_bb;
11750 * Link the finally bblock with the target, since it will
11751 * conceptually branch there.
11753 GET_BBLOCK (cfg, tblock, cfg->cil_start + clause->handler_offset + clause->handler_len - 1);
11754 GET_BBLOCK (cfg, target_bb, target);
11755 link_bblock (cfg, tblock, target_bb);
11758 g_list_free (handlers);
11761 MONO_INST_NEW (cfg, ins, OP_BR);
11762 MONO_ADD_INS (cfg->cbb, ins);
11763 GET_BBLOCK (cfg, tblock, target);
11764 link_bblock (cfg, cfg->cbb, tblock);
11765 ins->inst_target_bb = tblock;
11767 start_new_bblock = 1;
11769 if (*ip == CEE_LEAVE)
11778 * Mono specific opcodes
11780 case MONO_CUSTOM_PREFIX: {
11782 g_assert (method->wrapper_type != MONO_WRAPPER_NONE);
11786 case CEE_MONO_ICALL: {
11788 MonoJitICallInfo *info;
11790 token = read32 (ip + 2);
11791 func = mono_method_get_wrapper_data (method, token);
11792 info = mono_find_jit_icall_by_addr (func);
11794 g_error ("Could not find icall address in wrapper %s", mono_method_full_name (method, 1));
11797 CHECK_STACK (info->sig->param_count);
11798 sp -= info->sig->param_count;
11800 ins = mono_emit_jit_icall (cfg, info->func, sp);
11801 if (!MONO_TYPE_IS_VOID (info->sig->ret))
11805 inline_costs += 10 * num_calls++;
11809 case CEE_MONO_LDPTR_CARD_TABLE:
11810 case CEE_MONO_LDPTR_NURSERY_START:
11811 case CEE_MONO_LDPTR_NURSERY_BITS:
11812 case CEE_MONO_LDPTR_INT_REQ_FLAG: {
11813 CHECK_STACK_OVF (1);
11816 case CEE_MONO_LDPTR_CARD_TABLE:
11817 ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_GC_CARD_TABLE_ADDR, NULL);
11819 case CEE_MONO_LDPTR_NURSERY_START:
11820 ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_GC_NURSERY_START, NULL);
11822 case CEE_MONO_LDPTR_NURSERY_BITS:
11823 ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_GC_NURSERY_BITS, NULL);
11825 case CEE_MONO_LDPTR_INT_REQ_FLAG:
11826 ins = emit_runtime_constant (cfg, MONO_PATCH_INFO_INTERRUPTION_REQUEST_FLAG, NULL);
11832 inline_costs += 10 * num_calls++;
11835 case CEE_MONO_LDPTR: {
11838 CHECK_STACK_OVF (1);
11840 token = read32 (ip + 2);
11842 ptr = mono_method_get_wrapper_data (method, token);
11843 EMIT_NEW_PCONST (cfg, ins, ptr);
11846 inline_costs += 10 * num_calls++;
11847 /* Can't embed random pointers into AOT code */
11851 case CEE_MONO_JIT_ICALL_ADDR: {
11852 MonoJitICallInfo *callinfo;
11855 CHECK_STACK_OVF (1);
11857 token = read32 (ip + 2);
11859 ptr = mono_method_get_wrapper_data (method, token);
11860 callinfo = mono_find_jit_icall_by_addr (ptr);
11861 g_assert (callinfo);
11862 EMIT_NEW_JIT_ICALL_ADDRCONST (cfg, ins, (char*)callinfo->name);
11865 inline_costs += 10 * num_calls++;
11868 case CEE_MONO_ICALL_ADDR: {
11869 MonoMethod *cmethod;
11872 CHECK_STACK_OVF (1);
11874 token = read32 (ip + 2);
11876 cmethod = (MonoMethod *)mono_method_get_wrapper_data (method, token);
11878 if (cfg->compile_aot) {
11879 if (cfg->direct_pinvoke && ip + 6 < end && (ip [6] == CEE_POP)) {
11881 * This is generated by emit_native_wrapper () to resolve the pinvoke address
11882 * before the call, its not needed when using direct pinvoke.
11883 * This is not an optimization, but its used to avoid looking up pinvokes
11884 * on platforms which don't support dlopen ().
11886 EMIT_NEW_PCONST (cfg, ins, NULL);
11888 EMIT_NEW_AOTCONST (cfg, ins, MONO_PATCH_INFO_ICALL_ADDR, cmethod);
11891 ptr = mono_lookup_internal_call (cmethod);
11893 EMIT_NEW_PCONST (cfg, ins, ptr);
11899 case CEE_MONO_VTADDR: {
11900 MonoInst *src_var, *src;
11906 src_var = get_vreg_to_inst (cfg, sp [0]->dreg);
11907 EMIT_NEW_VARLOADA ((cfg), (src), src_var, src_var->inst_vtype);
11912 case CEE_MONO_NEWOBJ: {
11913 MonoInst *iargs [2];
11915 CHECK_STACK_OVF (1);
11917 token = read32 (ip + 2);
11918 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
11919 mono_class_init (klass);
11920 NEW_DOMAINCONST (cfg, iargs [0]);
11921 MONO_ADD_INS (cfg->cbb, iargs [0]);
11922 NEW_CLASSCONST (cfg, iargs [1], klass);
11923 MONO_ADD_INS (cfg->cbb, iargs [1]);
11924 *sp++ = mono_emit_jit_icall (cfg, ves_icall_object_new, iargs);
11926 inline_costs += 10 * num_calls++;
11929 case CEE_MONO_OBJADDR:
11932 MONO_INST_NEW (cfg, ins, OP_MOVE);
11933 ins->dreg = alloc_ireg_mp (cfg);
11934 ins->sreg1 = sp [0]->dreg;
11935 ins->type = STACK_MP;
11936 MONO_ADD_INS (cfg->cbb, ins);
11940 case CEE_MONO_LDNATIVEOBJ:
11942 * Similar to LDOBJ, but instead load the unmanaged
11943 * representation of the vtype to the stack.
11948 token = read32 (ip + 2);
11949 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
11950 g_assert (klass->valuetype);
11951 mono_class_init (klass);
11954 MonoInst *src, *dest, *temp;
11957 temp = mono_compile_create_var (cfg, &klass->byval_arg, OP_LOCAL);
11958 temp->backend.is_pinvoke = 1;
11959 EMIT_NEW_TEMPLOADA (cfg, dest, temp->inst_c0);
11960 mini_emit_stobj (cfg, dest, src, klass, TRUE);
11962 EMIT_NEW_TEMPLOAD (cfg, dest, temp->inst_c0);
11963 dest->type = STACK_VTYPE;
11964 dest->klass = klass;
11970 case CEE_MONO_RETOBJ: {
11972 * Same as RET, but return the native representation of a vtype
11975 g_assert (cfg->ret);
11976 g_assert (mono_method_signature (method)->pinvoke);
11981 token = read32 (ip + 2);
11982 klass = (MonoClass *)mono_method_get_wrapper_data (method, token);
11984 if (!cfg->vret_addr) {
11985 g_assert (cfg->ret_var_is_local);
11987 EMIT_NEW_VARLOADA (cfg, ins, cfg->ret, cfg->ret->inst_vtype);
11989 EMIT_NEW_RETLOADA (cfg, ins);
11991 mini_emit_stobj (cfg, ins, sp [0], klass, TRUE);
11993 if (sp != stack_start)
11996 MONO_INST_NEW (cfg, ins, OP_BR);
11997 ins->inst_target_bb = end_bblock;
11998 MONO_ADD_INS (cfg->cbb, ins);
11999 link_bblock (cfg, cfg->cbb, end_bblock);
12000 start_new_bblock = 1;
12004 case CEE_MONO_SAVE_LMF:
12005 case CEE_MONO_RESTORE_LMF:
12008 case CEE_MONO_CLASSCONST:
12009 CHECK_STACK_OVF (1);
12011 token = read32 (ip + 2);
12012 EMIT_NEW_CLASSCONST (cfg, ins, mono_method_get_wrapper_data (method, token));
12015 inline_costs += 10 * num_calls++;
12017 case CEE_MONO_NOT_TAKEN:
12018 cfg->cbb->out_of_line = TRUE;
12021 case CEE_MONO_TLS: {
12024 CHECK_STACK_OVF (1);
12026 key = (MonoTlsKey)read32 (ip + 2);
12027 g_assert (key < TLS_KEY_NUM);
12029 ins = mono_create_tls_get (cfg, key);
12031 ins->type = STACK_PTR;
12036 case CEE_MONO_DYN_CALL: {
12037 MonoCallInst *call;
12039 /* It would be easier to call a trampoline, but that would put an
12040 * extra frame on the stack, confusing exception handling. So
12041 * implement it inline using an opcode for now.
12044 if (!cfg->dyn_call_var) {
12045 cfg->dyn_call_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
12046 /* prevent it from being register allocated */
12047 cfg->dyn_call_var->flags |= MONO_INST_VOLATILE;
12050 /* Has to use a call inst since it local regalloc expects it */
12051 MONO_INST_NEW_CALL (cfg, call, OP_DYN_CALL);
12052 ins = (MonoInst*)call;
12054 ins->sreg1 = sp [0]->dreg;
12055 ins->sreg2 = sp [1]->dreg;
12056 MONO_ADD_INS (cfg->cbb, ins);
12058 cfg->param_area = MAX (cfg->param_area, cfg->backend->dyn_call_param_area);
12061 inline_costs += 10 * num_calls++;
12065 case CEE_MONO_MEMORY_BARRIER: {
12067 emit_memory_barrier (cfg, (int)read32 (ip + 2));
12071 case CEE_MONO_ATOMIC_STORE_I4: {
12072 g_assert (mono_arch_opcode_supported (OP_ATOMIC_STORE_I4));
12078 MONO_INST_NEW (cfg, ins, OP_ATOMIC_STORE_I4);
12079 ins->dreg = sp [0]->dreg;
12080 ins->sreg1 = sp [1]->dreg;
12081 ins->backend.memory_barrier_kind = (int) read32 (ip + 2);
12082 MONO_ADD_INS (cfg->cbb, ins);
12087 case CEE_MONO_JIT_ATTACH: {
12088 MonoInst *args [16], *domain_ins;
12089 MonoInst *ad_ins, *jit_tls_ins;
12090 MonoBasicBlock *next_bb = NULL, *call_bb = NULL;
12092 g_assert (!mono_threads_is_coop_enabled ());
12094 cfg->orig_domain_var = mono_compile_create_var (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL);
12096 EMIT_NEW_PCONST (cfg, ins, NULL);
12097 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->orig_domain_var->dreg, ins->dreg);
12099 ad_ins = mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
12100 jit_tls_ins = mono_create_tls_get (cfg, TLS_KEY_JIT_TLS);
12102 if (ad_ins && jit_tls_ins) {
12103 NEW_BBLOCK (cfg, next_bb);
12104 NEW_BBLOCK (cfg, call_bb);
12106 if (cfg->compile_aot) {
12107 /* AOT code is only used in the root domain */
12108 EMIT_NEW_PCONST (cfg, domain_ins, NULL);
12110 EMIT_NEW_PCONST (cfg, domain_ins, cfg->domain);
12112 MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, ad_ins->dreg, domain_ins->dreg);
12113 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBNE_UN, call_bb);
12115 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, jit_tls_ins->dreg, 0);
12116 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBEQ, call_bb);
12118 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, next_bb);
12119 MONO_START_BB (cfg, call_bb);
12122 /* AOT code is only used in the root domain */
12123 EMIT_NEW_PCONST (cfg, args [0], cfg->compile_aot ? NULL : cfg->domain);
12124 if (cfg->compile_aot) {
12128 * This is called on unattached threads, so it cannot go through the trampoline
12129 * infrastructure. Use an indirect call through a got slot initialized at load time
12132 EMIT_NEW_AOTCONST (cfg, addr, MONO_PATCH_INFO_JIT_THREAD_ATTACH, NULL);
12133 ins = mono_emit_calli (cfg, helper_sig_jit_thread_attach, args, addr, NULL, NULL);
12135 ins = mono_emit_jit_icall (cfg, mono_jit_thread_attach, args);
12137 MONO_EMIT_NEW_UNALU (cfg, OP_MOVE, cfg->orig_domain_var->dreg, ins->dreg);
12140 MONO_START_BB (cfg, next_bb);
12145 case CEE_MONO_JIT_DETACH: {
12146 MonoInst *args [16];
12148 /* Restore the original domain */
12149 dreg = alloc_ireg (cfg);
12150 EMIT_NEW_UNALU (cfg, args [0], OP_MOVE, dreg, cfg->orig_domain_var->dreg);
12151 mono_emit_jit_icall (cfg, mono_jit_set_domain, args);
12155 case CEE_MONO_CALLI_EXTRA_ARG: {
12157 MonoMethodSignature *fsig;
12161 * This is the same as CEE_CALLI, but passes an additional argument
12162 * to the called method in llvmonly mode.
12163 * This is only used by delegate invoke wrappers to call the
12164 * actual delegate method.
12166 g_assert (method->wrapper_type == MONO_WRAPPER_DELEGATE_INVOKE);
12169 token = read32 (ip + 2);
12177 fsig = mini_get_signature (method, token, generic_context, &cfg->error);
12180 if (cfg->llvm_only)
12181 cfg->signatures = g_slist_prepend_mempool (cfg->mempool, cfg->signatures, fsig);
12183 n = fsig->param_count + fsig->hasthis + 1;
12190 if (cfg->llvm_only) {
12192 * The lowest bit of 'arg' determines whenever the callee uses the gsharedvt
12193 * cconv. This is set by mono_init_delegate ().
12195 if (cfg->gsharedvt && mini_is_gsharedvt_variable_signature (fsig)) {
12196 MonoInst *callee = addr;
12197 MonoInst *call, *localloc_ins;
12198 MonoBasicBlock *is_gsharedvt_bb, *end_bb;
12199 int low_bit_reg = alloc_preg (cfg);
12201 NEW_BBLOCK (cfg, is_gsharedvt_bb);
12202 NEW_BBLOCK (cfg, end_bb);
12204 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_PAND_IMM, low_bit_reg, arg->dreg, 1);
12205 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, low_bit_reg, 0);
12206 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBNE_UN, is_gsharedvt_bb);
12208 /* Normal case: callee uses a normal cconv, have to add an out wrapper */
12209 addr = emit_get_rgctx_sig (cfg, context_used,
12210 fsig, MONO_RGCTX_INFO_SIG_GSHAREDVT_OUT_TRAMPOLINE_CALLI);
12212 * ADDR points to a gsharedvt-out wrapper, have to pass <callee, arg> as an extra arg.
12214 MONO_INST_NEW (cfg, ins, OP_LOCALLOC_IMM);
12215 ins->dreg = alloc_preg (cfg);
12216 ins->inst_imm = 2 * SIZEOF_VOID_P;
12217 MONO_ADD_INS (cfg->cbb, ins);
12218 localloc_ins = ins;
12219 cfg->flags |= MONO_CFG_HAS_ALLOCA;
12220 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, localloc_ins->dreg, 0, callee->dreg);
12221 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, localloc_ins->dreg, SIZEOF_VOID_P, arg->dreg);
12223 call = emit_extra_arg_calli (cfg, fsig, sp, localloc_ins->dreg, addr);
12224 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
12226 /* Gsharedvt case: callee uses a gsharedvt cconv, no conversion is needed */
12227 MONO_START_BB (cfg, is_gsharedvt_bb);
12228 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_PXOR_IMM, arg->dreg, arg->dreg, 1);
12229 ins = emit_extra_arg_calli (cfg, fsig, sp, arg->dreg, callee);
12230 ins->dreg = call->dreg;
12232 MONO_START_BB (cfg, end_bb);
12234 /* Caller uses a normal calling conv */
12236 MonoInst *callee = addr;
12237 MonoInst *call, *localloc_ins;
12238 MonoBasicBlock *is_gsharedvt_bb, *end_bb;
12239 int low_bit_reg = alloc_preg (cfg);
12241 NEW_BBLOCK (cfg, is_gsharedvt_bb);
12242 NEW_BBLOCK (cfg, end_bb);
12244 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_PAND_IMM, low_bit_reg, arg->dreg, 1);
12245 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, low_bit_reg, 0);
12246 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBNE_UN, is_gsharedvt_bb);
12248 /* Normal case: callee uses a normal cconv, no conversion is needed */
12249 call = emit_extra_arg_calli (cfg, fsig, sp, arg->dreg, callee);
12250 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
12251 /* Gsharedvt case: callee uses a gsharedvt cconv, have to add an in wrapper */
12252 MONO_START_BB (cfg, is_gsharedvt_bb);
12253 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_PXOR_IMM, arg->dreg, arg->dreg, 1);
12254 NEW_AOTCONST (cfg, addr, MONO_PATCH_INFO_GSHAREDVT_IN_WRAPPER, fsig);
12255 MONO_ADD_INS (cfg->cbb, addr);
12257 * ADDR points to a gsharedvt-in wrapper, have to pass <callee, arg> as an extra arg.
12259 MONO_INST_NEW (cfg, ins, OP_LOCALLOC_IMM);
12260 ins->dreg = alloc_preg (cfg);
12261 ins->inst_imm = 2 * SIZEOF_VOID_P;
12262 MONO_ADD_INS (cfg->cbb, ins);
12263 localloc_ins = ins;
12264 cfg->flags |= MONO_CFG_HAS_ALLOCA;
12265 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, localloc_ins->dreg, 0, callee->dreg);
12266 MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORE_MEMBASE_REG, localloc_ins->dreg, SIZEOF_VOID_P, arg->dreg);
12268 ins = emit_extra_arg_calli (cfg, fsig, sp, localloc_ins->dreg, addr);
12269 ins->dreg = call->dreg;
12270 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
12272 MONO_START_BB (cfg, end_bb);
12275 /* Same as CEE_CALLI */
12276 if (cfg->gsharedvt && mini_is_gsharedvt_signature (fsig)) {
12278 * We pass the address to the gsharedvt trampoline in the rgctx reg
12280 MonoInst *callee = addr;
12282 addr = emit_get_rgctx_sig (cfg, context_used,
12283 fsig, MONO_RGCTX_INFO_SIG_GSHAREDVT_OUT_TRAMPOLINE_CALLI);
12284 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, callee);
12286 ins = (MonoInst*)mono_emit_calli (cfg, fsig, sp, addr, NULL, NULL);
12290 if (!MONO_TYPE_IS_VOID (fsig->ret))
12291 *sp++ = mono_emit_widen_call_res (cfg, ins, fsig);
12293 CHECK_CFG_EXCEPTION;
12297 constrained_class = NULL;
12300 case CEE_MONO_LDDOMAIN:
12301 CHECK_STACK_OVF (1);
12302 EMIT_NEW_PCONST (cfg, ins, cfg->compile_aot ? NULL : cfg->domain);
12306 case CEE_MONO_GET_LAST_ERROR:
12308 CHECK_STACK_OVF (1);
12310 MONO_INST_NEW (cfg, ins, OP_GET_LAST_ERROR);
12311 ins->dreg = alloc_dreg (cfg, STACK_I4);
12312 ins->type = STACK_I4;
12313 MONO_ADD_INS (cfg->cbb, ins);
12319 g_error ("opcode 0x%02x 0x%02x not handled", MONO_CUSTOM_PREFIX, ip [1]);
12325 case CEE_PREFIX1: {
12328 case CEE_ARGLIST: {
12329 /* somewhat similar to LDTOKEN */
12330 MonoInst *addr, *vtvar;
12331 CHECK_STACK_OVF (1);
12332 vtvar = mono_compile_create_var (cfg, &mono_defaults.argumenthandle_class->byval_arg, OP_LOCAL);
12334 EMIT_NEW_TEMPLOADA (cfg, addr, vtvar->inst_c0);
12335 EMIT_NEW_UNALU (cfg, ins, OP_ARGLIST, -1, addr->dreg);
12337 EMIT_NEW_TEMPLOAD (cfg, ins, vtvar->inst_c0);
12338 ins->type = STACK_VTYPE;
12339 ins->klass = mono_defaults.argumenthandle_class;
12349 MonoInst *cmp, *arg1, *arg2;
12357 * The following transforms:
12358 * CEE_CEQ into OP_CEQ
12359 * CEE_CGT into OP_CGT
12360 * CEE_CGT_UN into OP_CGT_UN
12361 * CEE_CLT into OP_CLT
12362 * CEE_CLT_UN into OP_CLT_UN
12364 MONO_INST_NEW (cfg, cmp, (OP_CEQ - CEE_CEQ) + ip [1]);
12366 MONO_INST_NEW (cfg, ins, cmp->opcode);
12367 cmp->sreg1 = arg1->dreg;
12368 cmp->sreg2 = arg2->dreg;
12369 type_from_op (cfg, cmp, arg1, arg2);
12371 add_widen_op (cfg, cmp, &arg1, &arg2);
12372 if ((arg1->type == STACK_I8) || ((SIZEOF_VOID_P == 8) && ((arg1->type == STACK_PTR) || (arg1->type == STACK_OBJ) || (arg1->type == STACK_MP))))
12373 cmp->opcode = OP_LCOMPARE;
12374 else if (arg1->type == STACK_R4)
12375 cmp->opcode = OP_RCOMPARE;
12376 else if (arg1->type == STACK_R8)
12377 cmp->opcode = OP_FCOMPARE;
12379 cmp->opcode = OP_ICOMPARE;
12380 MONO_ADD_INS (cfg->cbb, cmp);
12381 ins->type = STACK_I4;
12382 ins->dreg = alloc_dreg (cfg, (MonoStackType)ins->type);
12383 type_from_op (cfg, ins, arg1, arg2);
12385 if (cmp->opcode == OP_FCOMPARE || cmp->opcode == OP_RCOMPARE) {
12387 * The backends expect the fceq opcodes to do the
12390 ins->sreg1 = cmp->sreg1;
12391 ins->sreg2 = cmp->sreg2;
12394 MONO_ADD_INS (cfg->cbb, ins);
12400 MonoInst *argconst;
12401 MonoMethod *cil_method;
12403 CHECK_STACK_OVF (1);
12405 n = read32 (ip + 2);
12406 cmethod = mini_get_method (cfg, method, n, NULL, generic_context);
12409 mono_class_init (cmethod->klass);
12411 mono_save_token_info (cfg, image, n, cmethod);
12413 context_used = mini_method_check_context_used (cfg, cmethod);
12415 cil_method = cmethod;
12416 if (!dont_verify && !cfg->skip_visibility && !mono_method_can_access_method (method, cmethod))
12417 emit_method_access_failure (cfg, method, cil_method);
12419 if (mono_security_core_clr_enabled ())
12420 ensure_method_is_allowed_to_call_method (cfg, method, cmethod);
12423 * Optimize the common case of ldftn+delegate creation
12425 if ((sp > stack_start) && (ip + 6 + 5 < end) && ip_in_bb (cfg, cfg->cbb, ip + 6) && (ip [6] == CEE_NEWOBJ)) {
12426 MonoMethod *ctor_method = mini_get_method (cfg, method, read32 (ip + 7), NULL, generic_context);
12427 if (ctor_method && (ctor_method->klass->parent == mono_defaults.multicastdelegate_class)) {
12428 MonoInst *target_ins, *handle_ins;
12429 MonoMethod *invoke;
12430 int invoke_context_used;
12432 invoke = mono_get_delegate_invoke (ctor_method->klass);
12433 if (!invoke || !mono_method_signature (invoke))
12436 invoke_context_used = mini_method_check_context_used (cfg, invoke);
12438 target_ins = sp [-1];
12440 if (mono_security_core_clr_enabled ())
12441 ensure_method_is_allowed_to_call_method (cfg, method, ctor_method);
12443 if (!(cmethod->flags & METHOD_ATTRIBUTE_STATIC)) {
12444 /*LAME IMPL: We must not add a null check for virtual invoke delegates.*/
12445 if (mono_method_signature (invoke)->param_count == mono_method_signature (cmethod)->param_count) {
12446 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, target_ins->dreg, 0);
12447 MONO_EMIT_NEW_COND_EXC (cfg, EQ, "ArgumentException");
12451 /* FIXME: SGEN support */
12452 if (invoke_context_used == 0 || cfg->llvm_only) {
12454 if (cfg->verbose_level > 3)
12455 g_print ("converting (in B%d: stack: %d) %s", cfg->cbb->block_num, (int)(sp - stack_start), mono_disasm_code_one (NULL, method, ip, NULL));
12456 if ((handle_ins = handle_delegate_ctor (cfg, ctor_method->klass, target_ins, cmethod, context_used, FALSE))) {
12459 CHECK_CFG_EXCEPTION;
12469 argconst = emit_get_rgctx_method (cfg, context_used, cmethod, MONO_RGCTX_INFO_METHOD);
12470 ins = mono_emit_jit_icall (cfg, mono_ldftn, &argconst);
12474 inline_costs += 10 * num_calls++;
12477 case CEE_LDVIRTFTN: {
12478 MonoInst *args [2];
12482 n = read32 (ip + 2);
12483 cmethod = mini_get_method (cfg, method, n, NULL, generic_context);
12486 mono_class_init (cmethod->klass);
12488 context_used = mini_method_check_context_used (cfg, cmethod);
12490 if (mono_security_core_clr_enabled ())
12491 ensure_method_is_allowed_to_call_method (cfg, method, cmethod);
12494 * Optimize the common case of ldvirtftn+delegate creation
12496 if ((sp > stack_start) && (ip + 6 + 5 < end) && ip_in_bb (cfg, cfg->cbb, ip + 6) && (ip [6] == CEE_NEWOBJ) && (ip > header->code && ip [-1] == CEE_DUP)) {
12497 MonoMethod *ctor_method = mini_get_method (cfg, method, read32 (ip + 7), NULL, generic_context);
12498 if (ctor_method && (ctor_method->klass->parent == mono_defaults.multicastdelegate_class)) {
12499 MonoInst *target_ins, *handle_ins;
12500 MonoMethod *invoke;
12501 int invoke_context_used;
12502 gboolean is_virtual = cmethod->flags & METHOD_ATTRIBUTE_VIRTUAL;
12504 invoke = mono_get_delegate_invoke (ctor_method->klass);
12505 if (!invoke || !mono_method_signature (invoke))
12508 invoke_context_used = mini_method_check_context_used (cfg, invoke);
12510 target_ins = sp [-1];
12512 if (mono_security_core_clr_enabled ())
12513 ensure_method_is_allowed_to_call_method (cfg, method, ctor_method);
12515 /* FIXME: SGEN support */
12516 if (invoke_context_used == 0 || cfg->llvm_only) {
12518 if (cfg->verbose_level > 3)
12519 g_print ("converting (in B%d: stack: %d) %s", cfg->cbb->block_num, (int)(sp - stack_start), mono_disasm_code_one (NULL, method, ip, NULL));
12520 if ((handle_ins = handle_delegate_ctor (cfg, ctor_method->klass, target_ins, cmethod, context_used, is_virtual))) {
12523 CHECK_CFG_EXCEPTION;
12536 args [1] = emit_get_rgctx_method (cfg, context_used,
12537 cmethod, MONO_RGCTX_INFO_METHOD);
12540 *sp++ = mono_emit_jit_icall (cfg, mono_ldvirtfn_gshared, args);
12542 *sp++ = mono_emit_jit_icall (cfg, mono_ldvirtfn, args);
12545 inline_costs += 10 * num_calls++;
12549 CHECK_STACK_OVF (1);
12551 n = read16 (ip + 2);
12553 EMIT_NEW_ARGLOAD (cfg, ins, n);
12558 CHECK_STACK_OVF (1);
12560 n = read16 (ip + 2);
12562 NEW_ARGLOADA (cfg, ins, n);
12563 MONO_ADD_INS (cfg->cbb, ins);
12571 n = read16 (ip + 2);
12573 if (!dont_verify_stloc && target_type_is_incompatible (cfg, param_types [n], *sp))
12575 EMIT_NEW_ARGSTORE (cfg, ins, n, *sp);
12579 CHECK_STACK_OVF (1);
12581 n = read16 (ip + 2);
12583 EMIT_NEW_LOCLOAD (cfg, ins, n);
12588 unsigned char *tmp_ip;
12589 CHECK_STACK_OVF (1);
12591 n = read16 (ip + 2);
12594 if ((tmp_ip = emit_optimized_ldloca_ir (cfg, ip, end, 2))) {
12600 EMIT_NEW_LOCLOADA (cfg, ins, n);
12609 n = read16 (ip + 2);
12611 if (!dont_verify_stloc && target_type_is_incompatible (cfg, header->locals [n], *sp))
12613 emit_stloc_ir (cfg, sp, header, n);
12617 case CEE_LOCALLOC: {
12619 MonoBasicBlock *non_zero_bb, *end_bb;
12620 int alloc_ptr = alloc_preg (cfg);
12622 if (sp != stack_start)
12624 if (cfg->method != method)
12626 * Inlining this into a loop in a parent could lead to
12627 * stack overflows which is different behavior than the
12628 * non-inlined case, thus disable inlining in this case.
12630 INLINE_FAILURE("localloc");
12632 NEW_BBLOCK (cfg, non_zero_bb);
12633 NEW_BBLOCK (cfg, end_bb);
12635 /* if size != zero */
12636 MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, sp [0]->dreg, 0);
12637 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_PBNE_UN, non_zero_bb);
12639 //size is zero, so result is NULL
12640 MONO_EMIT_NEW_PCONST (cfg, alloc_ptr, NULL);
12641 MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_BR, end_bb);
12643 MONO_START_BB (cfg, non_zero_bb);
12644 MONO_INST_NEW (cfg, ins, OP_LOCALLOC);
12645 ins->dreg = alloc_ptr;
12646 ins->sreg1 = sp [0]->dreg;
12647 ins->type = STACK_PTR;
12648 MONO_ADD_INS (cfg->cbb, ins);
12650 cfg->flags |= MONO_CFG_HAS_ALLOCA;
12652 ins->flags |= MONO_INST_INIT;
12654 MONO_START_BB (cfg, end_bb);
12655 EMIT_NEW_UNALU (cfg, ins, OP_MOVE, alloc_preg (cfg), alloc_ptr);
12656 ins->type = STACK_PTR;
12662 case CEE_ENDFILTER: {
12663 MonoExceptionClause *clause, *nearest;
12668 if ((sp != stack_start) || (sp [0]->type != STACK_I4))
12670 MONO_INST_NEW (cfg, ins, OP_ENDFILTER);
12671 ins->sreg1 = (*sp)->dreg;
12672 MONO_ADD_INS (cfg->cbb, ins);
12673 start_new_bblock = 1;
12677 for (cc = 0; cc < header->num_clauses; ++cc) {
12678 clause = &header->clauses [cc];
12679 if ((clause->flags & MONO_EXCEPTION_CLAUSE_FILTER) &&
12680 ((ip - header->code) > clause->data.filter_offset && (ip - header->code) <= clause->handler_offset) &&
12681 (!nearest || (clause->data.filter_offset < nearest->data.filter_offset)))
12684 g_assert (nearest);
12685 if ((ip - header->code) != nearest->handler_offset)
12690 case CEE_UNALIGNED_:
12691 ins_flag |= MONO_INST_UNALIGNED;
12692 /* FIXME: record alignment? we can assume 1 for now */
12696 case CEE_VOLATILE_:
12697 ins_flag |= MONO_INST_VOLATILE;
12701 ins_flag |= MONO_INST_TAILCALL;
12702 cfg->flags |= MONO_CFG_HAS_TAIL;
12703 /* Can't inline tail calls at this time */
12704 inline_costs += 100000;
12711 token = read32 (ip + 2);
12712 klass = mini_get_class (method, token, generic_context);
12713 CHECK_TYPELOAD (klass);
12714 if (generic_class_is_reference_type (cfg, klass))
12715 MONO_EMIT_NEW_STORE_MEMBASE_IMM (cfg, OP_STORE_MEMBASE_IMM, sp [0]->dreg, 0, 0);
12717 mini_emit_initobj (cfg, *sp, NULL, klass);
12721 case CEE_CONSTRAINED_:
12723 token = read32 (ip + 2);
12724 constrained_class = mini_get_class (method, token, generic_context);
12725 CHECK_TYPELOAD (constrained_class);
12729 case CEE_INITBLK: {
12730 MonoInst *iargs [3];
12734 /* Skip optimized paths for volatile operations. */
12735 if ((ip [1] == CEE_CPBLK) && !(ins_flag & MONO_INST_VOLATILE) && (cfg->opt & MONO_OPT_INTRINS) && (sp [2]->opcode == OP_ICONST) && ((n = sp [2]->inst_c0) <= sizeof (gpointer) * 5)) {
12736 mini_emit_memcpy (cfg, sp [0]->dreg, 0, sp [1]->dreg, 0, sp [2]->inst_c0, 0);
12737 } else if ((ip [1] == CEE_INITBLK) && !(ins_flag & MONO_INST_VOLATILE) && (cfg->opt & MONO_OPT_INTRINS) && (sp [2]->opcode == OP_ICONST) && ((n = sp [2]->inst_c0) <= sizeof (gpointer) * 5) && (sp [1]->opcode == OP_ICONST) && (sp [1]->inst_c0 == 0)) {
12738 /* emit_memset only works when val == 0 */
12739 mini_emit_memset (cfg, sp [0]->dreg, 0, sp [2]->inst_c0, sp [1]->inst_c0, 0);
12742 iargs [0] = sp [0];
12743 iargs [1] = sp [1];
12744 iargs [2] = sp [2];
12745 if (ip [1] == CEE_CPBLK) {
12747 * FIXME: It's unclear whether we should be emitting both the acquire
12748 * and release barriers for cpblk. It is technically both a load and
12749 * store operation, so it seems like that's the sensible thing to do.
12751 * FIXME: We emit full barriers on both sides of the operation for
12752 * simplicity. We should have a separate atomic memcpy method instead.
12754 MonoMethod *memcpy_method = get_memcpy_method ();
12756 if (ins_flag & MONO_INST_VOLATILE)
12757 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
12759 call = mono_emit_method_call (cfg, memcpy_method, iargs, NULL);
12760 call->flags |= ins_flag;
12762 if (ins_flag & MONO_INST_VOLATILE)
12763 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_SEQ);
12765 MonoMethod *memset_method = get_memset_method ();
12766 if (ins_flag & MONO_INST_VOLATILE) {
12767 /* Volatile stores have release semantics, see 12.6.7 in Ecma 335 */
12768 emit_memory_barrier (cfg, MONO_MEMORY_BARRIER_REL);
12770 call = mono_emit_method_call (cfg, memset_method, iargs, NULL);
12771 call->flags |= ins_flag;
12782 ins_flag |= MONO_INST_NOTYPECHECK;
12784 ins_flag |= MONO_INST_NORANGECHECK;
12785 /* we ignore the no-nullcheck for now since we
12786 * really do it explicitly only when doing callvirt->call
12790 case CEE_RETHROW: {
12792 int handler_offset = -1;
12794 for (i = 0; i < header->num_clauses; ++i) {
12795 MonoExceptionClause *clause = &header->clauses [i];
12796 if (MONO_OFFSET_IN_HANDLER (clause, ip - header->code) && !(clause->flags & MONO_EXCEPTION_CLAUSE_FINALLY)) {
12797 handler_offset = clause->handler_offset;
12802 cfg->cbb->flags |= BB_EXCEPTION_UNSAFE;
12804 if (handler_offset == -1)
12807 EMIT_NEW_TEMPLOAD (cfg, load, mono_find_exvar_for_offset (cfg, handler_offset)->inst_c0);
12808 MONO_INST_NEW (cfg, ins, OP_RETHROW);
12809 ins->sreg1 = load->dreg;
12810 MONO_ADD_INS (cfg->cbb, ins);
12812 MONO_INST_NEW (cfg, ins, OP_NOT_REACHED);
12813 MONO_ADD_INS (cfg->cbb, ins);
12816 link_bblock (cfg, cfg->cbb, end_bblock);
12817 start_new_bblock = 1;
12825 CHECK_STACK_OVF (1);
12827 token = read32 (ip + 2);
12828 if (mono_metadata_token_table (token) == MONO_TABLE_TYPESPEC && !image_is_dynamic (method->klass->image) && !generic_context) {
12829 MonoType *type = mono_type_create_from_typespec_checked (image, token, &cfg->error);
12832 val = mono_type_size (type, &ialign);
12834 MonoClass *klass = mini_get_class (method, token, generic_context);
12835 CHECK_TYPELOAD (klass);
12837 val = mono_type_size (&klass->byval_arg, &ialign);
12839 if (mini_is_gsharedvt_klass (klass))
12840 GSHAREDVT_FAILURE (*ip);
12842 EMIT_NEW_ICONST (cfg, ins, val);
12847 case CEE_REFANYTYPE: {
12848 MonoInst *src_var, *src;
12850 GSHAREDVT_FAILURE (*ip);
12856 src_var = get_vreg_to_inst (cfg, sp [0]->dreg);
12858 src_var = mono_compile_create_var_for_vreg (cfg, &mono_defaults.typed_reference_class->byval_arg, OP_LOCAL, sp [0]->dreg);
12859 EMIT_NEW_VARLOADA (cfg, src, src_var, src_var->inst_vtype);
12860 EMIT_NEW_LOAD_MEMBASE_TYPE (cfg, ins, &mono_defaults.typehandle_class->byval_arg, src->dreg, MONO_STRUCT_OFFSET (MonoTypedRef, type));
12865 case CEE_READONLY_:
12878 g_warning ("opcode 0xfe 0x%02x not handled", ip [1]);
12888 g_warning ("opcode 0x%02x not handled", *ip);
12892 if (start_new_bblock != 1)
12895 cfg->cbb->cil_length = ip - cfg->cbb->cil_code;
12896 if (cfg->cbb->next_bb) {
12897 /* This could already be set because of inlining, #693905 */
12898 MonoBasicBlock *bb = cfg->cbb;
12900 while (bb->next_bb)
12902 bb->next_bb = end_bblock;
12904 cfg->cbb->next_bb = end_bblock;
12907 if (cfg->method == method && cfg->domainvar) {
12909 MonoInst *get_domain;
12911 cfg->cbb = init_localsbb;
12913 get_domain = mono_create_tls_get (cfg, TLS_KEY_DOMAIN);
12914 NEW_TEMPSTORE (cfg, store, cfg->domainvar->inst_c0, get_domain);
12915 MONO_ADD_INS (cfg->cbb, store);
12918 #if defined(TARGET_POWERPC) || defined(TARGET_X86)
12919 if (cfg->compile_aot)
12920 /* FIXME: The plt slots require a GOT var even if the method doesn't use it */
12921 mono_get_got_var (cfg);
12924 if (cfg->method == method && cfg->got_var)
12925 mono_emit_load_got_addr (cfg);
12927 if (init_localsbb) {
12928 cfg->cbb = init_localsbb;
12930 for (i = 0; i < header->num_locals; ++i) {
12931 emit_init_local (cfg, i, header->locals [i], init_locals);
12935 if (cfg->init_ref_vars && cfg->method == method) {
12936 /* Emit initialization for ref vars */
12937 // FIXME: Avoid duplication initialization for IL locals.
12938 for (i = 0; i < cfg->num_varinfo; ++i) {
12939 MonoInst *ins = cfg->varinfo [i];
12941 if (ins->opcode == OP_LOCAL && ins->type == STACK_OBJ)
12942 MONO_EMIT_NEW_PCONST (cfg, ins->dreg, NULL);
12946 if (cfg->lmf_var && cfg->method == method && !cfg->llvm_only) {
12947 cfg->cbb = init_localsbb;
12948 emit_push_lmf (cfg);
12951 cfg->cbb = init_localsbb;
12952 emit_instrumentation_call (cfg, mono_profiler_method_enter);
12955 MonoBasicBlock *bb;
12958 * Make seq points at backward branch targets interruptable.
12960 for (bb = cfg->bb_entry; bb; bb = bb->next_bb)
12961 if (bb->code && bb->in_count > 1 && bb->code->opcode == OP_SEQ_POINT)
12962 bb->code->flags |= MONO_INST_SINGLE_STEP_LOC;
12965 /* Add a sequence point for method entry/exit events */
12966 if (seq_points && cfg->gen_sdb_seq_points) {
12967 NEW_SEQ_POINT (cfg, ins, METHOD_ENTRY_IL_OFFSET, FALSE);
12968 MONO_ADD_INS (init_localsbb, ins);
12969 NEW_SEQ_POINT (cfg, ins, METHOD_EXIT_IL_OFFSET, FALSE);
12970 MONO_ADD_INS (cfg->bb_exit, ins);
12974 * Add seq points for IL offsets which have line number info, but wasn't generated a seq point during JITting because
12975 * the code they refer to was dead (#11880).
12977 if (sym_seq_points) {
12978 for (i = 0; i < header->code_size; ++i) {
12979 if (mono_bitset_test_fast (seq_point_locs, i) && !mono_bitset_test_fast (seq_point_set_locs, i)) {
12982 NEW_SEQ_POINT (cfg, ins, i, FALSE);
12983 mono_add_seq_point (cfg, NULL, ins, SEQ_POINT_NATIVE_OFFSET_DEAD_CODE);
12990 if (cfg->method == method) {
12991 MonoBasicBlock *bb;
12992 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
12993 if (bb == cfg->bb_init)
12996 bb->region = mono_find_block_region (cfg, bb->real_offset);
12998 mono_create_spvar_for_region (cfg, bb->region);
12999 if (cfg->verbose_level > 2)
13000 printf ("REGION BB%d IL_%04x ID_%08X\n", bb->block_num, bb->real_offset, bb->region);
13003 MonoBasicBlock *bb;
13004 /* get_most_deep_clause () in mini-llvm.c depends on this for inlined bblocks */
13005 for (bb = start_bblock; bb != end_bblock; bb = bb->next_bb) {
13006 bb->real_offset = inline_offset;
13010 if (inline_costs < 0) {
13013 /* Method is too large */
13014 mname = mono_method_full_name (method, TRUE);
13015 mono_cfg_set_exception_invalid_program (cfg, g_strdup_printf ("Method %s is too complex.", mname));
13019 if ((cfg->verbose_level > 2) && (cfg->method == method))
13020 mono_print_code (cfg, "AFTER METHOD-TO-IR");
13025 g_assert (!mono_error_ok (&cfg->error));
13029 g_assert (cfg->exception_type != MONO_EXCEPTION_NONE);
13033 set_exception_type_from_invalid_il (cfg, method, ip);
13037 g_slist_free (class_inits);
13038 mono_basic_block_free (original_bb);
13039 cfg->dont_inline = g_list_remove (cfg->dont_inline, method);
13040 if (cfg->exception_type)
13043 return inline_costs;
13047 store_membase_reg_to_store_membase_imm (int opcode)
13050 case OP_STORE_MEMBASE_REG:
13051 return OP_STORE_MEMBASE_IMM;
13052 case OP_STOREI1_MEMBASE_REG:
13053 return OP_STOREI1_MEMBASE_IMM;
13054 case OP_STOREI2_MEMBASE_REG:
13055 return OP_STOREI2_MEMBASE_IMM;
13056 case OP_STOREI4_MEMBASE_REG:
13057 return OP_STOREI4_MEMBASE_IMM;
13058 case OP_STOREI8_MEMBASE_REG:
13059 return OP_STOREI8_MEMBASE_IMM;
13061 g_assert_not_reached ();
13068 mono_op_to_op_imm (int opcode)
13072 return OP_IADD_IMM;
13074 return OP_ISUB_IMM;
13076 return OP_IDIV_IMM;
13078 return OP_IDIV_UN_IMM;
13080 return OP_IREM_IMM;
13082 return OP_IREM_UN_IMM;
13084 return OP_IMUL_IMM;
13086 return OP_IAND_IMM;
13090 return OP_IXOR_IMM;
13092 return OP_ISHL_IMM;
13094 return OP_ISHR_IMM;
13096 return OP_ISHR_UN_IMM;
13099 return OP_LADD_IMM;
13101 return OP_LSUB_IMM;
13103 return OP_LAND_IMM;
13107 return OP_LXOR_IMM;
13109 return OP_LSHL_IMM;
13111 return OP_LSHR_IMM;
13113 return OP_LSHR_UN_IMM;
13114 #if SIZEOF_REGISTER == 8
13116 return OP_LREM_IMM;
13120 return OP_COMPARE_IMM;
13122 return OP_ICOMPARE_IMM;
13124 return OP_LCOMPARE_IMM;
13126 case OP_STORE_MEMBASE_REG:
13127 return OP_STORE_MEMBASE_IMM;
13128 case OP_STOREI1_MEMBASE_REG:
13129 return OP_STOREI1_MEMBASE_IMM;
13130 case OP_STOREI2_MEMBASE_REG:
13131 return OP_STOREI2_MEMBASE_IMM;
13132 case OP_STOREI4_MEMBASE_REG:
13133 return OP_STOREI4_MEMBASE_IMM;
13135 #if defined(TARGET_X86) || defined (TARGET_AMD64)
13137 return OP_X86_PUSH_IMM;
13138 case OP_X86_COMPARE_MEMBASE_REG:
13139 return OP_X86_COMPARE_MEMBASE_IMM;
13141 #if defined(TARGET_AMD64)
13142 case OP_AMD64_ICOMPARE_MEMBASE_REG:
13143 return OP_AMD64_ICOMPARE_MEMBASE_IMM;
13145 case OP_VOIDCALL_REG:
13146 return OP_VOIDCALL;
13154 return OP_LOCALLOC_IMM;
13161 ldind_to_load_membase (int opcode)
13165 return OP_LOADI1_MEMBASE;
13167 return OP_LOADU1_MEMBASE;
13169 return OP_LOADI2_MEMBASE;
13171 return OP_LOADU2_MEMBASE;
13173 return OP_LOADI4_MEMBASE;
13175 return OP_LOADU4_MEMBASE;
13177 return OP_LOAD_MEMBASE;
13178 case CEE_LDIND_REF:
13179 return OP_LOAD_MEMBASE;
13181 return OP_LOADI8_MEMBASE;
13183 return OP_LOADR4_MEMBASE;
13185 return OP_LOADR8_MEMBASE;
13187 g_assert_not_reached ();
13194 stind_to_store_membase (int opcode)
13198 return OP_STOREI1_MEMBASE_REG;
13200 return OP_STOREI2_MEMBASE_REG;
13202 return OP_STOREI4_MEMBASE_REG;
13204 case CEE_STIND_REF:
13205 return OP_STORE_MEMBASE_REG;
13207 return OP_STOREI8_MEMBASE_REG;
13209 return OP_STORER4_MEMBASE_REG;
13211 return OP_STORER8_MEMBASE_REG;
13213 g_assert_not_reached ();
13220 mono_load_membase_to_load_mem (int opcode)
13222 // FIXME: Add a MONO_ARCH_HAVE_LOAD_MEM macro
13223 #if defined(TARGET_X86) || defined(TARGET_AMD64)
13225 case OP_LOAD_MEMBASE:
13226 return OP_LOAD_MEM;
13227 case OP_LOADU1_MEMBASE:
13228 return OP_LOADU1_MEM;
13229 case OP_LOADU2_MEMBASE:
13230 return OP_LOADU2_MEM;
13231 case OP_LOADI4_MEMBASE:
13232 return OP_LOADI4_MEM;
13233 case OP_LOADU4_MEMBASE:
13234 return OP_LOADU4_MEM;
13235 #if SIZEOF_REGISTER == 8
13236 case OP_LOADI8_MEMBASE:
13237 return OP_LOADI8_MEM;
13246 op_to_op_dest_membase (int store_opcode, int opcode)
13248 #if defined(TARGET_X86)
13249 if (!((store_opcode == OP_STORE_MEMBASE_REG) || (store_opcode == OP_STOREI4_MEMBASE_REG)))
13254 return OP_X86_ADD_MEMBASE_REG;
13256 return OP_X86_SUB_MEMBASE_REG;
13258 return OP_X86_AND_MEMBASE_REG;
13260 return OP_X86_OR_MEMBASE_REG;
13262 return OP_X86_XOR_MEMBASE_REG;
13265 return OP_X86_ADD_MEMBASE_IMM;
13268 return OP_X86_SUB_MEMBASE_IMM;
13271 return OP_X86_AND_MEMBASE_IMM;
13274 return OP_X86_OR_MEMBASE_IMM;
13277 return OP_X86_XOR_MEMBASE_IMM;
13283 #if defined(TARGET_AMD64)
13284 if (!((store_opcode == OP_STORE_MEMBASE_REG) || (store_opcode == OP_STOREI4_MEMBASE_REG) || (store_opcode == OP_STOREI8_MEMBASE_REG)))
13289 return OP_X86_ADD_MEMBASE_REG;
13291 return OP_X86_SUB_MEMBASE_REG;
13293 return OP_X86_AND_MEMBASE_REG;
13295 return OP_X86_OR_MEMBASE_REG;
13297 return OP_X86_XOR_MEMBASE_REG;
13299 return OP_X86_ADD_MEMBASE_IMM;
13301 return OP_X86_SUB_MEMBASE_IMM;
13303 return OP_X86_AND_MEMBASE_IMM;
13305 return OP_X86_OR_MEMBASE_IMM;
13307 return OP_X86_XOR_MEMBASE_IMM;
13309 return OP_AMD64_ADD_MEMBASE_REG;
13311 return OP_AMD64_SUB_MEMBASE_REG;
13313 return OP_AMD64_AND_MEMBASE_REG;
13315 return OP_AMD64_OR_MEMBASE_REG;
13317 return OP_AMD64_XOR_MEMBASE_REG;
13320 return OP_AMD64_ADD_MEMBASE_IMM;
13323 return OP_AMD64_SUB_MEMBASE_IMM;
13326 return OP_AMD64_AND_MEMBASE_IMM;
13329 return OP_AMD64_OR_MEMBASE_IMM;
13332 return OP_AMD64_XOR_MEMBASE_IMM;
13342 op_to_op_store_membase (int store_opcode, int opcode)
13344 #if defined(TARGET_X86) || defined(TARGET_AMD64)
13347 if (store_opcode == OP_STOREI1_MEMBASE_REG)
13348 return OP_X86_SETEQ_MEMBASE;
13350 if (store_opcode == OP_STOREI1_MEMBASE_REG)
13351 return OP_X86_SETNE_MEMBASE;
13359 op_to_op_src1_membase (MonoCompile *cfg, int load_opcode, int opcode)
13362 /* FIXME: This has sign extension issues */
13364 if ((opcode == OP_ICOMPARE_IMM) && (load_opcode == OP_LOADU1_MEMBASE))
13365 return OP_X86_COMPARE_MEMBASE8_IMM;
13368 if (!((load_opcode == OP_LOAD_MEMBASE) || (load_opcode == OP_LOADI4_MEMBASE) || (load_opcode == OP_LOADU4_MEMBASE)))
13373 return OP_X86_PUSH_MEMBASE;
13374 case OP_COMPARE_IMM:
13375 case OP_ICOMPARE_IMM:
13376 return OP_X86_COMPARE_MEMBASE_IMM;
13379 return OP_X86_COMPARE_MEMBASE_REG;
13383 #ifdef TARGET_AMD64
13384 /* FIXME: This has sign extension issues */
13386 if ((opcode == OP_ICOMPARE_IMM) && (load_opcode == OP_LOADU1_MEMBASE))
13387 return OP_X86_COMPARE_MEMBASE8_IMM;
13392 if ((load_opcode == OP_LOAD_MEMBASE && !cfg->backend->ilp32) || (load_opcode == OP_LOADI8_MEMBASE))
13393 return OP_X86_PUSH_MEMBASE;
13395 /* FIXME: This only works for 32 bit immediates
13396 case OP_COMPARE_IMM:
13397 case OP_LCOMPARE_IMM:
13398 if ((load_opcode == OP_LOAD_MEMBASE) || (load_opcode == OP_LOADI8_MEMBASE))
13399 return OP_AMD64_COMPARE_MEMBASE_IMM;
13401 case OP_ICOMPARE_IMM:
13402 if ((load_opcode == OP_LOADI4_MEMBASE) || (load_opcode == OP_LOADU4_MEMBASE))
13403 return OP_AMD64_ICOMPARE_MEMBASE_IMM;
13407 if (cfg->backend->ilp32 && load_opcode == OP_LOAD_MEMBASE)
13408 return OP_AMD64_ICOMPARE_MEMBASE_REG;
13409 if ((load_opcode == OP_LOAD_MEMBASE && !cfg->backend->ilp32) || (load_opcode == OP_LOADI8_MEMBASE))
13410 return OP_AMD64_COMPARE_MEMBASE_REG;
13413 if ((load_opcode == OP_LOADI4_MEMBASE) || (load_opcode == OP_LOADU4_MEMBASE))
13414 return OP_AMD64_ICOMPARE_MEMBASE_REG;
13423 op_to_op_src2_membase (MonoCompile *cfg, int load_opcode, int opcode)
13426 if (!((load_opcode == OP_LOAD_MEMBASE) || (load_opcode == OP_LOADI4_MEMBASE) || (load_opcode == OP_LOADU4_MEMBASE)))
13432 return OP_X86_COMPARE_REG_MEMBASE;
13434 return OP_X86_ADD_REG_MEMBASE;
13436 return OP_X86_SUB_REG_MEMBASE;
13438 return OP_X86_AND_REG_MEMBASE;
13440 return OP_X86_OR_REG_MEMBASE;
13442 return OP_X86_XOR_REG_MEMBASE;
13446 #ifdef TARGET_AMD64
13447 if ((load_opcode == OP_LOADI4_MEMBASE) || (load_opcode == OP_LOADU4_MEMBASE) || (load_opcode == OP_LOAD_MEMBASE && cfg->backend->ilp32)) {
13450 return OP_AMD64_ICOMPARE_REG_MEMBASE;
13452 return OP_X86_ADD_REG_MEMBASE;
13454 return OP_X86_SUB_REG_MEMBASE;
13456 return OP_X86_AND_REG_MEMBASE;
13458 return OP_X86_OR_REG_MEMBASE;
13460 return OP_X86_XOR_REG_MEMBASE;
13462 } else if ((load_opcode == OP_LOADI8_MEMBASE) || (load_opcode == OP_LOAD_MEMBASE && !cfg->backend->ilp32)) {
13466 return OP_AMD64_COMPARE_REG_MEMBASE;
13468 return OP_AMD64_ADD_REG_MEMBASE;
13470 return OP_AMD64_SUB_REG_MEMBASE;
13472 return OP_AMD64_AND_REG_MEMBASE;
13474 return OP_AMD64_OR_REG_MEMBASE;
13476 return OP_AMD64_XOR_REG_MEMBASE;
13485 mono_op_to_op_imm_noemul (int opcode)
13488 #if SIZEOF_REGISTER == 4 && !defined(MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS)
13494 #if defined(MONO_ARCH_EMULATE_MUL_DIV) || defined(MONO_ARCH_EMULATE_DIV)
13501 #if defined(MONO_ARCH_EMULATE_MUL_DIV)
13506 return mono_op_to_op_imm (opcode);
13511 * mono_handle_global_vregs:
13513 * Make vregs used in more than one bblock 'global', i.e. allocate a variable
13517 mono_handle_global_vregs (MonoCompile *cfg)
13519 gint32 *vreg_to_bb;
13520 MonoBasicBlock *bb;
13523 vreg_to_bb = (gint32 *)mono_mempool_alloc0 (cfg->mempool, sizeof (gint32*) * cfg->next_vreg + 1);
13525 #ifdef MONO_ARCH_SIMD_INTRINSICS
13526 if (cfg->uses_simd_intrinsics)
13527 mono_simd_simplify_indirection (cfg);
13530 /* Find local vregs used in more than one bb */
13531 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
13532 MonoInst *ins = bb->code;
13533 int block_num = bb->block_num;
13535 if (cfg->verbose_level > 2)
13536 printf ("\nHANDLE-GLOBAL-VREGS BLOCK %d:\n", bb->block_num);
13539 for (; ins; ins = ins->next) {
13540 const char *spec = INS_INFO (ins->opcode);
13541 int regtype = 0, regindex;
13544 if (G_UNLIKELY (cfg->verbose_level > 2))
13545 mono_print_ins (ins);
13547 g_assert (ins->opcode >= MONO_CEE_LAST);
13549 for (regindex = 0; regindex < 4; regindex ++) {
13552 if (regindex == 0) {
13553 regtype = spec [MONO_INST_DEST];
13554 if (regtype == ' ')
13557 } else if (regindex == 1) {
13558 regtype = spec [MONO_INST_SRC1];
13559 if (regtype == ' ')
13562 } else if (regindex == 2) {
13563 regtype = spec [MONO_INST_SRC2];
13564 if (regtype == ' ')
13567 } else if (regindex == 3) {
13568 regtype = spec [MONO_INST_SRC3];
13569 if (regtype == ' ')
13574 #if SIZEOF_REGISTER == 4
13575 /* In the LLVM case, the long opcodes are not decomposed */
13576 if (regtype == 'l' && !COMPILE_LLVM (cfg)) {
13578 * Since some instructions reference the original long vreg,
13579 * and some reference the two component vregs, it is quite hard
13580 * to determine when it needs to be global. So be conservative.
13582 if (!get_vreg_to_inst (cfg, vreg)) {
13583 mono_compile_create_var_for_vreg (cfg, &mono_defaults.int64_class->byval_arg, OP_LOCAL, vreg);
13585 if (cfg->verbose_level > 2)
13586 printf ("LONG VREG R%d made global.\n", vreg);
13590 * Make the component vregs volatile since the optimizations can
13591 * get confused otherwise.
13593 get_vreg_to_inst (cfg, MONO_LVREG_LS (vreg))->flags |= MONO_INST_VOLATILE;
13594 get_vreg_to_inst (cfg, MONO_LVREG_MS (vreg))->flags |= MONO_INST_VOLATILE;
13598 g_assert (vreg != -1);
13600 prev_bb = vreg_to_bb [vreg];
13601 if (prev_bb == 0) {
13602 /* 0 is a valid block num */
13603 vreg_to_bb [vreg] = block_num + 1;
13604 } else if ((prev_bb != block_num + 1) && (prev_bb != -1)) {
13605 if (((regtype == 'i' && (vreg < MONO_MAX_IREGS))) || (regtype == 'f' && (vreg < MONO_MAX_FREGS)))
13608 if (!get_vreg_to_inst (cfg, vreg)) {
13609 if (G_UNLIKELY (cfg->verbose_level > 2))
13610 printf ("VREG R%d used in BB%d and BB%d made global.\n", vreg, vreg_to_bb [vreg], block_num);
13614 if (vreg_is_ref (cfg, vreg))
13615 mono_compile_create_var_for_vreg (cfg, &mono_defaults.object_class->byval_arg, OP_LOCAL, vreg);
13617 mono_compile_create_var_for_vreg (cfg, &mono_defaults.int_class->byval_arg, OP_LOCAL, vreg);
13620 mono_compile_create_var_for_vreg (cfg, &mono_defaults.int64_class->byval_arg, OP_LOCAL, vreg);
13623 mono_compile_create_var_for_vreg (cfg, &mono_defaults.double_class->byval_arg, OP_LOCAL, vreg);
13627 mono_compile_create_var_for_vreg (cfg, &ins->klass->byval_arg, OP_LOCAL, vreg);
13630 g_assert_not_reached ();
13634 /* Flag as having been used in more than one bb */
13635 vreg_to_bb [vreg] = -1;
13641 /* If a variable is used in only one bblock, convert it into a local vreg */
13642 for (i = 0; i < cfg->num_varinfo; i++) {
13643 MonoInst *var = cfg->varinfo [i];
13644 MonoMethodVar *vmv = MONO_VARINFO (cfg, i);
13646 switch (var->type) {
13652 #if SIZEOF_REGISTER == 8
13655 #if !defined(TARGET_X86)
13656 /* Enabling this screws up the fp stack on x86 */
13659 if (mono_arch_is_soft_float ())
13663 if (var->type == STACK_VTYPE && cfg->gsharedvt && mini_is_gsharedvt_variable_type (var->inst_vtype))
13667 /* Arguments are implicitly global */
13668 /* Putting R4 vars into registers doesn't work currently */
13669 /* The gsharedvt vars are implicitly referenced by ldaddr opcodes, but those opcodes are only generated later */
13670 if ((var->opcode != OP_ARG) && (var != cfg->ret) && !(var->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)) && (vreg_to_bb [var->dreg] != -1) && (var->klass->byval_arg.type != MONO_TYPE_R4) && !cfg->disable_vreg_to_lvreg && var != cfg->gsharedvt_info_var && var != cfg->gsharedvt_locals_var && var != cfg->lmf_addr_var) {
13672 * Make that the variable's liveness interval doesn't contain a call, since
13673 * that would cause the lvreg to be spilled, making the whole optimization
13676 /* This is too slow for JIT compilation */
13678 if (cfg->compile_aot && vreg_to_bb [var->dreg]) {
13680 int def_index, call_index, ins_index;
13681 gboolean spilled = FALSE;
13686 for (ins = vreg_to_bb [var->dreg]->code; ins; ins = ins->next) {
13687 const char *spec = INS_INFO (ins->opcode);
13689 if ((spec [MONO_INST_DEST] != ' ') && (ins->dreg == var->dreg))
13690 def_index = ins_index;
13692 if (((spec [MONO_INST_SRC1] != ' ') && (ins->sreg1 == var->dreg)) ||
13693 ((spec [MONO_INST_SRC1] != ' ') && (ins->sreg1 == var->dreg))) {
13694 if (call_index > def_index) {
13700 if (MONO_IS_CALL (ins))
13701 call_index = ins_index;
13711 if (G_UNLIKELY (cfg->verbose_level > 2))
13712 printf ("CONVERTED R%d(%d) TO VREG.\n", var->dreg, vmv->idx);
13713 var->flags |= MONO_INST_IS_DEAD;
13714 cfg->vreg_to_inst [var->dreg] = NULL;
13721 * Compress the varinfo and vars tables so the liveness computation is faster and
13722 * takes up less space.
13725 for (i = 0; i < cfg->num_varinfo; ++i) {
13726 MonoInst *var = cfg->varinfo [i];
13727 if (pos < i && cfg->locals_start == i)
13728 cfg->locals_start = pos;
13729 if (!(var->flags & MONO_INST_IS_DEAD)) {
13731 cfg->varinfo [pos] = cfg->varinfo [i];
13732 cfg->varinfo [pos]->inst_c0 = pos;
13733 memcpy (&cfg->vars [pos], &cfg->vars [i], sizeof (MonoMethodVar));
13734 cfg->vars [pos].idx = pos;
13735 #if SIZEOF_REGISTER == 4
13736 if (cfg->varinfo [pos]->type == STACK_I8) {
13737 /* Modify the two component vars too */
13740 var1 = get_vreg_to_inst (cfg, MONO_LVREG_LS (cfg->varinfo [pos]->dreg));
13741 var1->inst_c0 = pos;
13742 var1 = get_vreg_to_inst (cfg, MONO_LVREG_MS (cfg->varinfo [pos]->dreg));
13743 var1->inst_c0 = pos;
13750 cfg->num_varinfo = pos;
13751 if (cfg->locals_start > cfg->num_varinfo)
13752 cfg->locals_start = cfg->num_varinfo;
13756 * mono_allocate_gsharedvt_vars:
13758 * Allocate variables with gsharedvt types to entries in the MonoGSharedVtMethodRuntimeInfo.entries array.
13759 * Initialize cfg->gsharedvt_vreg_to_idx with the mapping between vregs and indexes.
13762 mono_allocate_gsharedvt_vars (MonoCompile *cfg)
13766 cfg->gsharedvt_vreg_to_idx = (int *)mono_mempool_alloc0 (cfg->mempool, sizeof (int) * cfg->next_vreg);
13768 for (i = 0; i < cfg->num_varinfo; ++i) {
13769 MonoInst *ins = cfg->varinfo [i];
13772 if (mini_is_gsharedvt_variable_type (ins->inst_vtype)) {
13773 if (i >= cfg->locals_start) {
13775 idx = get_gsharedvt_info_slot (cfg, ins->inst_vtype, MONO_RGCTX_INFO_LOCAL_OFFSET);
13776 cfg->gsharedvt_vreg_to_idx [ins->dreg] = idx + 1;
13777 ins->opcode = OP_GSHAREDVT_LOCAL;
13778 ins->inst_imm = idx;
13781 cfg->gsharedvt_vreg_to_idx [ins->dreg] = -1;
13782 ins->opcode = OP_GSHAREDVT_ARG_REGOFFSET;
13789 * mono_spill_global_vars:
13791 * Generate spill code for variables which are not allocated to registers,
13792 * and replace vregs with their allocated hregs. *need_local_opts is set to TRUE if
13793 * code is generated which could be optimized by the local optimization passes.
13796 mono_spill_global_vars (MonoCompile *cfg, gboolean *need_local_opts)
13798 MonoBasicBlock *bb;
13800 int orig_next_vreg;
13801 guint32 *vreg_to_lvreg;
13803 guint32 i, lvregs_len;
13804 gboolean dest_has_lvreg = FALSE;
13805 MonoStackType stacktypes [128];
13806 MonoInst **live_range_start, **live_range_end;
13807 MonoBasicBlock **live_range_start_bb, **live_range_end_bb;
13809 *need_local_opts = FALSE;
13811 memset (spec2, 0, sizeof (spec2));
13813 /* FIXME: Move this function to mini.c */
13814 stacktypes ['i'] = STACK_PTR;
13815 stacktypes ['l'] = STACK_I8;
13816 stacktypes ['f'] = STACK_R8;
13817 #ifdef MONO_ARCH_SIMD_INTRINSICS
13818 stacktypes ['x'] = STACK_VTYPE;
13821 #if SIZEOF_REGISTER == 4
13822 /* Create MonoInsts for longs */
13823 for (i = 0; i < cfg->num_varinfo; i++) {
13824 MonoInst *ins = cfg->varinfo [i];
13826 if ((ins->opcode != OP_REGVAR) && !(ins->flags & MONO_INST_IS_DEAD)) {
13827 switch (ins->type) {
13832 if (ins->type == STACK_R8 && !COMPILE_SOFT_FLOAT (cfg))
13835 g_assert (ins->opcode == OP_REGOFFSET);
13837 tree = get_vreg_to_inst (cfg, MONO_LVREG_LS (ins->dreg));
13839 tree->opcode = OP_REGOFFSET;
13840 tree->inst_basereg = ins->inst_basereg;
13841 tree->inst_offset = ins->inst_offset + MINI_LS_WORD_OFFSET;
13843 tree = get_vreg_to_inst (cfg, MONO_LVREG_MS (ins->dreg));
13845 tree->opcode = OP_REGOFFSET;
13846 tree->inst_basereg = ins->inst_basereg;
13847 tree->inst_offset = ins->inst_offset + MINI_MS_WORD_OFFSET;
13857 if (cfg->compute_gc_maps) {
13858 /* registers need liveness info even for !non refs */
13859 for (i = 0; i < cfg->num_varinfo; i++) {
13860 MonoInst *ins = cfg->varinfo [i];
13862 if (ins->opcode == OP_REGVAR)
13863 ins->flags |= MONO_INST_GC_TRACK;
13867 /* FIXME: widening and truncation */
13870 * As an optimization, when a variable allocated to the stack is first loaded into
13871 * an lvreg, we will remember the lvreg and use it the next time instead of loading
13872 * the variable again.
13874 orig_next_vreg = cfg->next_vreg;
13875 vreg_to_lvreg = (guint32 *)mono_mempool_alloc0 (cfg->mempool, sizeof (guint32) * cfg->next_vreg);
13876 lvregs = (guint32 *)mono_mempool_alloc (cfg->mempool, sizeof (guint32) * 1024);
13880 * These arrays contain the first and last instructions accessing a given
13882 * Since we emit bblocks in the same order we process them here, and we
13883 * don't split live ranges, these will precisely describe the live range of
13884 * the variable, i.e. the instruction range where a valid value can be found
13885 * in the variables location.
13886 * The live range is computed using the liveness info computed by the liveness pass.
13887 * We can't use vmv->range, since that is an abstract live range, and we need
13888 * one which is instruction precise.
13889 * FIXME: Variables used in out-of-line bblocks have a hole in their live range.
13891 /* FIXME: Only do this if debugging info is requested */
13892 live_range_start = g_new0 (MonoInst*, cfg->next_vreg);
13893 live_range_end = g_new0 (MonoInst*, cfg->next_vreg);
13894 live_range_start_bb = g_new (MonoBasicBlock*, cfg->next_vreg);
13895 live_range_end_bb = g_new (MonoBasicBlock*, cfg->next_vreg);
13897 /* Add spill loads/stores */
13898 for (bb = cfg->bb_entry; bb; bb = bb->next_bb) {
13901 if (cfg->verbose_level > 2)
13902 printf ("\nSPILL BLOCK %d:\n", bb->block_num);
13904 /* Clear vreg_to_lvreg array */
13905 for (i = 0; i < lvregs_len; i++)
13906 vreg_to_lvreg [lvregs [i]] = 0;
13910 MONO_BB_FOR_EACH_INS (bb, ins) {
13911 const char *spec = INS_INFO (ins->opcode);
13912 int regtype, srcindex, sreg, tmp_reg, prev_dreg, num_sregs;
13913 gboolean store, no_lvreg;
13914 int sregs [MONO_MAX_SRC_REGS];
13916 if (G_UNLIKELY (cfg->verbose_level > 2))
13917 mono_print_ins (ins);
13919 if (ins->opcode == OP_NOP)
13923 * We handle LDADDR here as well, since it can only be decomposed
13924 * when variable addresses are known.
13926 if (ins->opcode == OP_LDADDR) {
13927 MonoInst *var = (MonoInst *)ins->inst_p0;
13929 if (var->opcode == OP_VTARG_ADDR) {
13930 /* Happens on SPARC/S390 where vtypes are passed by reference */
13931 MonoInst *vtaddr = var->inst_left;
13932 if (vtaddr->opcode == OP_REGVAR) {
13933 ins->opcode = OP_MOVE;
13934 ins->sreg1 = vtaddr->dreg;
13936 else if (var->inst_left->opcode == OP_REGOFFSET) {
13937 ins->opcode = OP_LOAD_MEMBASE;
13938 ins->inst_basereg = vtaddr->inst_basereg;
13939 ins->inst_offset = vtaddr->inst_offset;
13942 } else if (cfg->gsharedvt && cfg->gsharedvt_vreg_to_idx [var->dreg] < 0) {
13943 /* gsharedvt arg passed by ref */
13944 g_assert (var->opcode == OP_GSHAREDVT_ARG_REGOFFSET);
13946 ins->opcode = OP_LOAD_MEMBASE;
13947 ins->inst_basereg = var->inst_basereg;
13948 ins->inst_offset = var->inst_offset;
13949 } else if (cfg->gsharedvt && cfg->gsharedvt_vreg_to_idx [var->dreg]) {
13950 MonoInst *load, *load2, *load3;
13951 int idx = cfg->gsharedvt_vreg_to_idx [var->dreg] - 1;
13952 int reg1, reg2, reg3;
13953 MonoInst *info_var = cfg->gsharedvt_info_var;
13954 MonoInst *locals_var = cfg->gsharedvt_locals_var;
13958 * Compute the address of the local as gsharedvt_locals_var + gsharedvt_info_var->locals_offsets [idx].
13961 g_assert (var->opcode == OP_GSHAREDVT_LOCAL);
13963 g_assert (info_var);
13964 g_assert (locals_var);
13966 /* Mark the instruction used to compute the locals var as used */
13967 cfg->gsharedvt_locals_var_ins = NULL;
13969 /* Load the offset */
13970 if (info_var->opcode == OP_REGOFFSET) {
13971 reg1 = alloc_ireg (cfg);
13972 NEW_LOAD_MEMBASE (cfg, load, OP_LOAD_MEMBASE, reg1, info_var->inst_basereg, info_var->inst_offset);
13973 } else if (info_var->opcode == OP_REGVAR) {
13975 reg1 = info_var->dreg;
13977 g_assert_not_reached ();
13979 reg2 = alloc_ireg (cfg);
13980 NEW_LOAD_MEMBASE (cfg, load2, OP_LOADI4_MEMBASE, reg2, reg1, MONO_STRUCT_OFFSET (MonoGSharedVtMethodRuntimeInfo, entries) + (idx * sizeof (gpointer)));
13981 /* Load the locals area address */
13982 reg3 = alloc_ireg (cfg);
13983 if (locals_var->opcode == OP_REGOFFSET) {
13984 NEW_LOAD_MEMBASE (cfg, load3, OP_LOAD_MEMBASE, reg3, locals_var->inst_basereg, locals_var->inst_offset);
13985 } else if (locals_var->opcode == OP_REGVAR) {
13986 NEW_UNALU (cfg, load3, OP_MOVE, reg3, locals_var->dreg);
13988 g_assert_not_reached ();
13990 /* Compute the address */
13991 ins->opcode = OP_PADD;
13995 mono_bblock_insert_before_ins (bb, ins, load3);
13996 mono_bblock_insert_before_ins (bb, load3, load2);
13998 mono_bblock_insert_before_ins (bb, load2, load);
14000 g_assert (var->opcode == OP_REGOFFSET);
14002 ins->opcode = OP_ADD_IMM;
14003 ins->sreg1 = var->inst_basereg;
14004 ins->inst_imm = var->inst_offset;
14007 *need_local_opts = TRUE;
14008 spec = INS_INFO (ins->opcode);
14011 if (ins->opcode < MONO_CEE_LAST) {
14012 mono_print_ins (ins);
14013 g_assert_not_reached ();
14017 * Store opcodes have destbasereg in the dreg, but in reality, it is an
14021 if (MONO_IS_STORE_MEMBASE (ins)) {
14022 tmp_reg = ins->dreg;
14023 ins->dreg = ins->sreg2;
14024 ins->sreg2 = tmp_reg;
14027 spec2 [MONO_INST_DEST] = ' ';
14028 spec2 [MONO_INST_SRC1] = spec [MONO_INST_SRC1];
14029 spec2 [MONO_INST_SRC2] = spec [MONO_INST_DEST];
14030 spec2 [MONO_INST_SRC3] = ' ';
14032 } else if (MONO_IS_STORE_MEMINDEX (ins))
14033 g_assert_not_reached ();
14038 if (G_UNLIKELY (cfg->verbose_level > 2)) {
14039 printf ("\t %.3s %d", spec, ins->dreg);
14040 num_sregs = mono_inst_get_src_registers (ins, sregs);
14041 for (srcindex = 0; srcindex < num_sregs; ++srcindex)
14042 printf (" %d", sregs [srcindex]);
14049 regtype = spec [MONO_INST_DEST];
14050 g_assert (((ins->dreg == -1) && (regtype == ' ')) || ((ins->dreg != -1) && (regtype != ' ')));
14053 if ((ins->dreg != -1) && get_vreg_to_inst (cfg, ins->dreg)) {
14054 MonoInst *var = get_vreg_to_inst (cfg, ins->dreg);
14055 MonoInst *store_ins;
14057 MonoInst *def_ins = ins;
14058 int dreg = ins->dreg; /* The original vreg */
14060 store_opcode = mono_type_to_store_membase (cfg, var->inst_vtype);
14062 if (var->opcode == OP_REGVAR) {
14063 ins->dreg = var->dreg;
14064 } else if ((ins->dreg == ins->sreg1) && (spec [MONO_INST_DEST] == 'i') && (spec [MONO_INST_SRC1] == 'i') && !vreg_to_lvreg [ins->dreg] && (op_to_op_dest_membase (store_opcode, ins->opcode) != -1)) {
14066 * Instead of emitting a load+store, use a _membase opcode.
14068 g_assert (var->opcode == OP_REGOFFSET);
14069 if (ins->opcode == OP_MOVE) {
14073 ins->opcode = op_to_op_dest_membase (store_opcode, ins->opcode);
14074 ins->inst_basereg = var->inst_basereg;
14075 ins->inst_offset = var->inst_offset;
14078 spec = INS_INFO (ins->opcode);
14082 g_assert (var->opcode == OP_REGOFFSET);
14084 prev_dreg = ins->dreg;
14086 /* Invalidate any previous lvreg for this vreg */
14087 vreg_to_lvreg [ins->dreg] = 0;
14091 if (COMPILE_SOFT_FLOAT (cfg) && store_opcode == OP_STORER8_MEMBASE_REG) {
14093 store_opcode = OP_STOREI8_MEMBASE_REG;
14096 ins->dreg = alloc_dreg (cfg, stacktypes [regtype]);
14098 #if SIZEOF_REGISTER != 8
14099 if (regtype == 'l') {
14100 NEW_STORE_MEMBASE (cfg, store_ins, OP_STOREI4_MEMBASE_REG, var->inst_basereg, var->inst_offset + MINI_LS_WORD_OFFSET, MONO_LVREG_LS (ins->dreg));
14101 mono_bblock_insert_after_ins (bb, ins, store_ins);
14102 NEW_STORE_MEMBASE (cfg, store_ins, OP_STOREI4_MEMBASE_REG, var->inst_basereg, var->inst_offset + MINI_MS_WORD_OFFSET, MONO_LVREG_MS (ins->dreg));
14103 mono_bblock_insert_after_ins (bb, ins, store_ins);
14104 def_ins = store_ins;
14109 g_assert (store_opcode != OP_STOREV_MEMBASE);
14111 /* Try to fuse the store into the instruction itself */
14112 /* FIXME: Add more instructions */
14113 if (!lvreg && ((ins->opcode == OP_ICONST) || ((ins->opcode == OP_I8CONST) && (ins->inst_c0 == 0)))) {
14114 ins->opcode = store_membase_reg_to_store_membase_imm (store_opcode);
14115 ins->inst_imm = ins->inst_c0;
14116 ins->inst_destbasereg = var->inst_basereg;
14117 ins->inst_offset = var->inst_offset;
14118 spec = INS_INFO (ins->opcode);
14119 } else if (!lvreg && ((ins->opcode == OP_MOVE) || (ins->opcode == OP_FMOVE) || (ins->opcode == OP_LMOVE) || (ins->opcode == OP_RMOVE))) {
14120 ins->opcode = store_opcode;
14121 ins->inst_destbasereg = var->inst_basereg;
14122 ins->inst_offset = var->inst_offset;
14126 tmp_reg = ins->dreg;
14127 ins->dreg = ins->sreg2;
14128 ins->sreg2 = tmp_reg;
14131 spec2 [MONO_INST_DEST] = ' ';
14132 spec2 [MONO_INST_SRC1] = spec [MONO_INST_SRC1];
14133 spec2 [MONO_INST_SRC2] = spec [MONO_INST_DEST];
14134 spec2 [MONO_INST_SRC3] = ' ';
14136 } else if (!lvreg && (op_to_op_store_membase (store_opcode, ins->opcode) != -1)) {
14137 // FIXME: The backends expect the base reg to be in inst_basereg
14138 ins->opcode = op_to_op_store_membase (store_opcode, ins->opcode);
14140 ins->inst_basereg = var->inst_basereg;
14141 ins->inst_offset = var->inst_offset;
14142 spec = INS_INFO (ins->opcode);
14144 /* printf ("INS: "); mono_print_ins (ins); */
14145 /* Create a store instruction */
14146 NEW_STORE_MEMBASE (cfg, store_ins, store_opcode, var->inst_basereg, var->inst_offset, ins->dreg);
14148 /* Insert it after the instruction */
14149 mono_bblock_insert_after_ins (bb, ins, store_ins);
14151 def_ins = store_ins;
14154 * We can't assign ins->dreg to var->dreg here, since the
14155 * sregs could use it. So set a flag, and do it after
14158 if ((!cfg->backend->use_fpstack || ((store_opcode != OP_STORER8_MEMBASE_REG) && (store_opcode != OP_STORER4_MEMBASE_REG))) && !((var)->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)))
14159 dest_has_lvreg = TRUE;
14164 if (def_ins && !live_range_start [dreg]) {
14165 live_range_start [dreg] = def_ins;
14166 live_range_start_bb [dreg] = bb;
14169 if (cfg->compute_gc_maps && def_ins && (var->flags & MONO_INST_GC_TRACK)) {
14172 MONO_INST_NEW (cfg, tmp, OP_GC_LIVENESS_DEF);
14173 tmp->inst_c1 = dreg;
14174 mono_bblock_insert_after_ins (bb, def_ins, tmp);
14181 num_sregs = mono_inst_get_src_registers (ins, sregs);
14182 for (srcindex = 0; srcindex < 3; ++srcindex) {
14183 regtype = spec [MONO_INST_SRC1 + srcindex];
14184 sreg = sregs [srcindex];
14186 g_assert (((sreg == -1) && (regtype == ' ')) || ((sreg != -1) && (regtype != ' ')));
14187 if ((sreg != -1) && get_vreg_to_inst (cfg, sreg)) {
14188 MonoInst *var = get_vreg_to_inst (cfg, sreg);
14189 MonoInst *use_ins = ins;
14190 MonoInst *load_ins;
14191 guint32 load_opcode;
14193 if (var->opcode == OP_REGVAR) {
14194 sregs [srcindex] = var->dreg;
14195 //mono_inst_set_src_registers (ins, sregs);
14196 live_range_end [sreg] = use_ins;
14197 live_range_end_bb [sreg] = bb;
14199 if (cfg->compute_gc_maps && var->dreg < orig_next_vreg && (var->flags & MONO_INST_GC_TRACK)) {
14202 MONO_INST_NEW (cfg, tmp, OP_GC_LIVENESS_USE);
14203 /* var->dreg is a hreg */
14204 tmp->inst_c1 = sreg;
14205 mono_bblock_insert_after_ins (bb, ins, tmp);
14211 g_assert (var->opcode == OP_REGOFFSET);
14213 load_opcode = mono_type_to_load_membase (cfg, var->inst_vtype);
14215 g_assert (load_opcode != OP_LOADV_MEMBASE);
14217 if (vreg_to_lvreg [sreg]) {
14218 g_assert (vreg_to_lvreg [sreg] != -1);
14220 /* The variable is already loaded to an lvreg */
14221 if (G_UNLIKELY (cfg->verbose_level > 2))
14222 printf ("\t\tUse lvreg R%d for R%d.\n", vreg_to_lvreg [sreg], sreg);
14223 sregs [srcindex] = vreg_to_lvreg [sreg];
14224 //mono_inst_set_src_registers (ins, sregs);
14228 /* Try to fuse the load into the instruction */
14229 if ((srcindex == 0) && (op_to_op_src1_membase (cfg, load_opcode, ins->opcode) != -1)) {
14230 ins->opcode = op_to_op_src1_membase (cfg, load_opcode, ins->opcode);
14231 sregs [0] = var->inst_basereg;
14232 //mono_inst_set_src_registers (ins, sregs);
14233 ins->inst_offset = var->inst_offset;
14234 } else if ((srcindex == 1) && (op_to_op_src2_membase (cfg, load_opcode, ins->opcode) != -1)) {
14235 ins->opcode = op_to_op_src2_membase (cfg, load_opcode, ins->opcode);
14236 sregs [1] = var->inst_basereg;
14237 //mono_inst_set_src_registers (ins, sregs);
14238 ins->inst_offset = var->inst_offset;
14240 if (MONO_IS_REAL_MOVE (ins)) {
14241 ins->opcode = OP_NOP;
14244 //printf ("%d ", srcindex); mono_print_ins (ins);
14246 sreg = alloc_dreg (cfg, stacktypes [regtype]);
14248 if ((!cfg->backend->use_fpstack || ((load_opcode != OP_LOADR8_MEMBASE) && (load_opcode != OP_LOADR4_MEMBASE))) && !((var)->flags & (MONO_INST_VOLATILE|MONO_INST_INDIRECT)) && !no_lvreg) {
14249 if (var->dreg == prev_dreg) {
14251 * sreg refers to the value loaded by the load
14252 * emitted below, but we need to use ins->dreg
14253 * since it refers to the store emitted earlier.
14257 g_assert (sreg != -1);
14258 vreg_to_lvreg [var->dreg] = sreg;
14259 g_assert (lvregs_len < 1024);
14260 lvregs [lvregs_len ++] = var->dreg;
14264 sregs [srcindex] = sreg;
14265 //mono_inst_set_src_registers (ins, sregs);
14267 #if SIZEOF_REGISTER != 8
14268 if (regtype == 'l') {
14269 NEW_LOAD_MEMBASE (cfg, load_ins, OP_LOADI4_MEMBASE, MONO_LVREG_MS (sreg), var->inst_basereg, var->inst_offset + MINI_MS_WORD_OFFSET);
14270 mono_bblock_insert_before_ins (bb, ins, load_ins);
14271 NEW_LOAD_MEMBASE (cfg, load_ins, OP_LOADI4_MEMBASE, MONO_LVREG_LS (sreg), var->inst_basereg, var->inst_offset + MINI_LS_WORD_OFFSET);
14272 mono_bblock_insert_before_ins (bb, ins, load_ins);
14273 use_ins = load_ins;
14278 #if SIZEOF_REGISTER == 4
14279 g_assert (load_opcode != OP_LOADI8_MEMBASE);
14281 NEW_LOAD_MEMBASE (cfg, load_ins, load_opcode, sreg, var->inst_basereg, var->inst_offset);
14282 mono_bblock_insert_before_ins (bb, ins, load_ins);
14283 use_ins = load_ins;
14287 if (var->dreg < orig_next_vreg) {
14288 live_range_end [var->dreg] = use_ins;
14289 live_range_end_bb [var->dreg] = bb;
14292 if (cfg->compute_gc_maps && var->dreg < orig_next_vreg && (var->flags & MONO_INST_GC_TRACK)) {
14295 MONO_INST_NEW (cfg, tmp, OP_GC_LIVENESS_USE);
14296 tmp->inst_c1 = var->dreg;
14297 mono_bblock_insert_after_ins (bb, ins, tmp);
14301 mono_inst_set_src_registers (ins, sregs);
14303 if (dest_has_lvreg) {
14304 g_assert (ins->dreg != -1);
14305 vreg_to_lvreg [prev_dreg] = ins->dreg;
14306 g_assert (lvregs_len < 1024);
14307 lvregs [lvregs_len ++] = prev_dreg;
14308 dest_has_lvreg = FALSE;
14312 tmp_reg = ins->dreg;
14313 ins->dreg = ins->sreg2;
14314 ins->sreg2 = tmp_reg;
14317 if (MONO_IS_CALL (ins)) {
14318 /* Clear vreg_to_lvreg array */
14319 for (i = 0; i < lvregs_len; i++)
14320 vreg_to_lvreg [lvregs [i]] = 0;
14322 } else if (ins->opcode == OP_NOP) {
14324 MONO_INST_NULLIFY_SREGS (ins);
14327 if (cfg->verbose_level > 2)
14328 mono_print_ins_index (1, ins);
14331 /* Extend the live range based on the liveness info */
14332 if (cfg->compute_precise_live_ranges && bb->live_out_set && bb->code) {
14333 for (i = 0; i < cfg->num_varinfo; i ++) {
14334 MonoMethodVar *vi = MONO_VARINFO (cfg, i);
14336 if (vreg_is_volatile (cfg, vi->vreg))
14337 /* The liveness info is incomplete */
14340 if (mono_bitset_test_fast (bb->live_in_set, i) && !live_range_start [vi->vreg]) {
14341 /* Live from at least the first ins of this bb */
14342 live_range_start [vi->vreg] = bb->code;
14343 live_range_start_bb [vi->vreg] = bb;
14346 if (mono_bitset_test_fast (bb->live_out_set, i)) {
14347 /* Live at least until the last ins of this bb */
14348 live_range_end [vi->vreg] = bb->last_ins;
14349 live_range_end_bb [vi->vreg] = bb;
14356 * Emit LIVERANGE_START/LIVERANGE_END opcodes, the backend will implement them
14357 * by storing the current native offset into MonoMethodVar->live_range_start/end.
14359 if (cfg->backend->have_liverange_ops && cfg->compute_precise_live_ranges && cfg->comp_done & MONO_COMP_LIVENESS) {
14360 for (i = 0; i < cfg->num_varinfo; ++i) {
14361 int vreg = MONO_VARINFO (cfg, i)->vreg;
14364 if (live_range_start [vreg]) {
14365 MONO_INST_NEW (cfg, ins, OP_LIVERANGE_START);
14367 ins->inst_c1 = vreg;
14368 mono_bblock_insert_after_ins (live_range_start_bb [vreg], live_range_start [vreg], ins);
14370 if (live_range_end [vreg]) {
14371 MONO_INST_NEW (cfg, ins, OP_LIVERANGE_END);
14373 ins->inst_c1 = vreg;
14374 if (live_range_end [vreg] == live_range_end_bb [vreg]->last_ins)
14375 mono_add_ins_to_end (live_range_end_bb [vreg], ins);
14377 mono_bblock_insert_after_ins (live_range_end_bb [vreg], live_range_end [vreg], ins);
14382 if (cfg->gsharedvt_locals_var_ins) {
14383 /* Nullify if unused */
14384 cfg->gsharedvt_locals_var_ins->opcode = OP_PCONST;
14385 cfg->gsharedvt_locals_var_ins->inst_imm = 0;
14388 g_free (live_range_start);
14389 g_free (live_range_end);
14390 g_free (live_range_start_bb);
14391 g_free (live_range_end_bb);
14397 * - use 'iadd' instead of 'int_add'
14398 * - handling ovf opcodes: decompose in method_to_ir.
14399 * - unify iregs/fregs
14400 * -> partly done, the missing parts are:
14401 * - a more complete unification would involve unifying the hregs as well, so
14402 * code wouldn't need if (fp) all over the place. but that would mean the hregs
14403 * would no longer map to the machine hregs, so the code generators would need to
14404 * be modified. Also, on ia64 for example, niregs + nfregs > 256 -> bitmasks
14405 * wouldn't work any more. Duplicating the code in mono_local_regalloc () into
14406 * fp/non-fp branches speeds it up by about 15%.
14407 * - use sext/zext opcodes instead of shifts
14409 * - get rid of TEMPLOADs if possible and use vregs instead
14410 * - clean up usage of OP_P/OP_ opcodes
14411 * - cleanup usage of DUMMY_USE
14412 * - cleanup the setting of ins->type for MonoInst's which are pushed on the
14414 * - set the stack type and allocate a dreg in the EMIT_NEW macros
14415 * - get rid of all the <foo>2 stuff when the new JIT is ready.
14416 * - make sure handle_stack_args () is called before the branch is emitted
14417 * - when the new IR is done, get rid of all unused stuff
14418 * - COMPARE/BEQ as separate instructions or unify them ?
14419 * - keeping them separate allows specialized compare instructions like
14420 * compare_imm, compare_membase
14421 * - most back ends unify fp compare+branch, fp compare+ceq
14422 * - integrate mono_save_args into inline_method
14423 * - get rid of the empty bblocks created by MONO_EMIT_NEW_BRACH_BLOCK2
14424 * - handle long shift opts on 32 bit platforms somehow: they require
14425 * 3 sregs (2 for arg1 and 1 for arg2)
14426 * - make byref a 'normal' type.
14427 * - use vregs for bb->out_stacks if possible, handle_global_vreg will make them a
14428 * variable if needed.
14429 * - do not start a new IL level bblock when cfg->cbb is changed by a function call
14430 * like inline_method.
14431 * - remove inlining restrictions
14432 * - fix LNEG and enable cfold of INEG
14433 * - generalize x86 optimizations like ldelema as a peephole optimization
14434 * - add store_mem_imm for amd64
14435 * - optimize the loading of the interruption flag in the managed->native wrappers
14436 * - avoid special handling of OP_NOP in passes
14437 * - move code inserting instructions into one function/macro.
14438 * - try a coalescing phase after liveness analysis
14439 * - add float -> vreg conversion + local optimizations on !x86
14440 * - figure out how to handle decomposed branches during optimizations, ie.
14441 * compare+branch, op_jump_table+op_br etc.
14442 * - promote RuntimeXHandles to vregs
14443 * - vtype cleanups:
14444 * - add a NEW_VARLOADA_VREG macro
14445 * - the vtype optimizations are blocked by the LDADDR opcodes generated for
14446 * accessing vtype fields.
14447 * - get rid of I8CONST on 64 bit platforms
14448 * - dealing with the increase in code size due to branches created during opcode
14450 * - use extended basic blocks
14451 * - all parts of the JIT
14452 * - handle_global_vregs () && local regalloc
14453 * - avoid introducing global vregs during decomposition, like 'vtable' in isinst
14454 * - sources of increase in code size:
14457 * - isinst and castclass
14458 * - lvregs not allocated to global registers even if used multiple times
14459 * - call cctors outside the JIT, to make -v output more readable and JIT timings more
14461 * - check for fp stack leakage in other opcodes too. (-> 'exceptions' optimization)
14462 * - add all micro optimizations from the old JIT
14463 * - put tree optimizations into the deadce pass
14464 * - decompose op_start_handler/op_endfilter/op_endfinally earlier using an arch
14465 * specific function.
14466 * - unify the float comparison opcodes with the other comparison opcodes, i.e.
14467 * fcompare + branchCC.
14468 * - create a helper function for allocating a stack slot, taking into account
14469 * MONO_CFG_HAS_SPILLUP.
14471 * - merge the ia64 switch changes.
14472 * - optimize mono_regstate2_alloc_int/float.
14473 * - fix the pessimistic handling of variables accessed in exception handler blocks.
14474 * - need to write a tree optimization pass, but the creation of trees is difficult, i.e.
14475 * parts of the tree could be separated by other instructions, killing the tree
14476 * arguments, or stores killing loads etc. Also, should we fold loads into other
14477 * instructions if the result of the load is used multiple times ?
14478 * - make the REM_IMM optimization in mini-x86.c arch-independent.
14479 * - LAST MERGE: 108395.
14480 * - when returning vtypes in registers, generate IR and append it to the end of the
14481 * last bb instead of doing it in the epilog.
14482 * - change the store opcodes so they use sreg1 instead of dreg to store the base register.
14490 - When to decompose opcodes:
14491 - earlier: this makes some optimizations hard to implement, since the low level IR
14492 no longer contains the neccessary information. But it is easier to do.
14493 - later: harder to implement, enables more optimizations.
14494 - Branches inside bblocks:
14495 - created when decomposing complex opcodes.
14496 - branches to another bblock: harmless, but not tracked by the branch
14497 optimizations, so need to branch to a label at the start of the bblock.
14498 - branches to inside the same bblock: very problematic, trips up the local
14499 reg allocator. Can be fixed by spitting the current bblock, but that is a
14500 complex operation, since some local vregs can become global vregs etc.
14501 - Local/global vregs:
14502 - local vregs: temporary vregs used inside one bblock. Assigned to hregs by the
14503 local register allocator.
14504 - global vregs: used in more than one bblock. Have an associated MonoMethodVar
14505 structure, created by mono_create_var (). Assigned to hregs or the stack by
14506 the global register allocator.
14507 - When to do optimizations like alu->alu_imm:
14508 - earlier -> saves work later on since the IR will be smaller/simpler
14509 - later -> can work on more instructions
14510 - Handling of valuetypes:
14511 - When a vtype is pushed on the stack, a new temporary is created, an
14512 instruction computing its address (LDADDR) is emitted and pushed on
14513 the stack. Need to optimize cases when the vtype is used immediately as in
14514 argument passing, stloc etc.
14515 - Instead of the to_end stuff in the old JIT, simply call the function handling
14516 the values on the stack before emitting the last instruction of the bb.
14519 #else /* !DISABLE_JIT */
14521 MONO_EMPTY_SOURCE_FILE (method_to_ir);
14523 #endif /* !DISABLE_JIT */