1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "src/v8.h"
6
7 #if V8_TARGET_ARCH_X87
8
9 #include "src/ic/ic.h"
10 #include "src/ic/ic-compiler.h"
11
12 namespace v8 {
13 namespace internal {
14
15 #define __ ACCESS_MASM(masm)
16
17
GenerateRuntimeSetProperty(MacroAssembler * masm,StrictMode strict_mode)18 void PropertyICCompiler::GenerateRuntimeSetProperty(MacroAssembler* masm,
19 StrictMode strict_mode) {
20 // Return address is on the stack.
21 DCHECK(!ebx.is(StoreDescriptor::ReceiverRegister()) &&
22 !ebx.is(StoreDescriptor::NameRegister()) &&
23 !ebx.is(StoreDescriptor::ValueRegister()));
24 __ pop(ebx);
25 __ push(StoreDescriptor::ReceiverRegister());
26 __ push(StoreDescriptor::NameRegister());
27 __ push(StoreDescriptor::ValueRegister());
28 __ push(Immediate(Smi::FromInt(strict_mode)));
29 __ push(ebx); // return address
30
31 // Do tail-call to runtime routine.
32 __ TailCallRuntime(Runtime::kSetProperty, 4, 1);
33 }
34
35
36 #undef __
37 #define __ ACCESS_MASM(masm())
38
CompilePolymorphic(TypeHandleList * types,CodeHandleList * handlers,Handle<Name> name,Code::StubType type,IcCheckType check)39 Handle<Code> PropertyICCompiler::CompilePolymorphic(TypeHandleList* types,
40 CodeHandleList* handlers,
41 Handle<Name> name,
42 Code::StubType type,
43 IcCheckType check) {
44 Label miss;
45
46 if (check == PROPERTY &&
47 (kind() == Code::KEYED_LOAD_IC || kind() == Code::KEYED_STORE_IC)) {
48 // In case we are compiling an IC for dictionary loads and stores, just
49 // check whether the name is unique.
50 if (name.is_identical_to(isolate()->factory()->normal_ic_symbol())) {
51 Register tmp = scratch1();
52 __ JumpIfSmi(this->name(), &miss);
53 __ mov(tmp, FieldOperand(this->name(), HeapObject::kMapOffset));
54 __ movzx_b(tmp, FieldOperand(tmp, Map::kInstanceTypeOffset));
55 __ JumpIfNotUniqueNameInstanceType(tmp, &miss);
56 } else {
57 __ cmp(this->name(), Immediate(name));
58 __ j(not_equal, &miss);
59 }
60 }
61
62 Label number_case;
63 Label* smi_target = IncludesNumberType(types) ? &number_case : &miss;
64 __ JumpIfSmi(receiver(), smi_target);
65
66 // Polymorphic keyed stores may use the map register
67 Register map_reg = scratch1();
68 DCHECK(kind() != Code::KEYED_STORE_IC ||
69 map_reg.is(ElementTransitionAndStoreDescriptor::MapRegister()));
70 __ mov(map_reg, FieldOperand(receiver(), HeapObject::kMapOffset));
71 int receiver_count = types->length();
72 int number_of_handled_maps = 0;
73 for (int current = 0; current < receiver_count; ++current) {
74 Handle<HeapType> type = types->at(current);
75 Handle<Map> map = IC::TypeToMap(*type, isolate());
76 if (!map->is_deprecated()) {
77 number_of_handled_maps++;
78 __ cmp(map_reg, map);
79 if (type->Is(HeapType::Number())) {
80 DCHECK(!number_case.is_unused());
81 __ bind(&number_case);
82 }
83 __ j(equal, handlers->at(current));
84 }
85 }
86 DCHECK(number_of_handled_maps != 0);
87
88 __ bind(&miss);
89 TailCallBuiltin(masm(), MissBuiltin(kind()));
90
91 // Return the generated code.
92 InlineCacheState state =
93 number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC;
94 return GetCode(kind(), type, name, state);
95 }
96
97
CompileKeyedStorePolymorphic(MapHandleList * receiver_maps,CodeHandleList * handler_stubs,MapHandleList * transitioned_maps)98 Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic(
99 MapHandleList* receiver_maps, CodeHandleList* handler_stubs,
100 MapHandleList* transitioned_maps) {
101 Label miss;
102 __ JumpIfSmi(receiver(), &miss, Label::kNear);
103 __ mov(scratch1(), FieldOperand(receiver(), HeapObject::kMapOffset));
104 for (int i = 0; i < receiver_maps->length(); ++i) {
105 __ cmp(scratch1(), receiver_maps->at(i));
106 if (transitioned_maps->at(i).is_null()) {
107 __ j(equal, handler_stubs->at(i));
108 } else {
109 Label next_map;
110 __ j(not_equal, &next_map, Label::kNear);
111 __ mov(transition_map(), Immediate(transitioned_maps->at(i)));
112 __ jmp(handler_stubs->at(i), RelocInfo::CODE_TARGET);
113 __ bind(&next_map);
114 }
115 }
116 __ bind(&miss);
117 TailCallBuiltin(masm(), MissBuiltin(kind()));
118
119 // Return the generated code.
120 return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC);
121 }
122
123
124 #undef __
125 }
126 } // namespace v8::internal
127
128 #endif // V8_TARGET_ARCH_X87
129