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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_ARM | 5 #if V8_TARGET_ARCH_ARM |
6 | 6 |
7 #include "src/ic/ic.h" | 7 #include "src/ic/ic.h" |
8 #include "src/ic/ic-compiler.h" | 8 #include "src/ic/ic-compiler.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
11 namespace internal { | 11 namespace internal { |
12 | 12 |
13 #define __ ACCESS_MASM(masm) | 13 #define __ ACCESS_MASM(masm) |
14 | 14 |
15 | 15 |
16 void PropertyICCompiler::GenerateRuntimeSetProperty( | 16 void PropertyICCompiler::GenerateRuntimeSetProperty( |
17 MacroAssembler* masm, LanguageMode language_mode) { | 17 MacroAssembler* masm, LanguageMode language_mode) { |
18 __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(), | 18 __ Push(StoreDescriptor::ReceiverRegister(), StoreDescriptor::NameRegister(), |
19 StoreDescriptor::ValueRegister()); | 19 StoreDescriptor::ValueRegister()); |
20 | 20 |
21 __ mov(r0, Operand(Smi::FromInt(language_mode))); | 21 __ mov(r0, Operand(Smi::FromInt(language_mode))); |
22 __ Push(r0); | 22 __ Push(r0); |
23 | 23 |
24 // Do tail-call to runtime routine. | 24 // Do tail-call to runtime routine. |
25 __ TailCallRuntime(Runtime::kSetProperty, 4, 1); | 25 __ TailCallRuntime(Runtime::kSetProperty, 4, 1); |
26 } | 26 } |
27 | 27 |
28 | 28 |
29 #undef __ | 29 #undef __ |
30 #define __ ACCESS_MASM(masm()) | |
31 | |
32 | |
33 Handle<Code> PropertyICCompiler::CompilePolymorphic(MapHandleList* maps, | |
34 CodeHandleList* handlers, | |
35 Handle<Name> name, | |
36 Code::StubType type, | |
37 IcCheckType check) { | |
38 Label miss; | |
39 | |
40 if (check == PROPERTY && | |
41 (kind() == Code::KEYED_LOAD_IC || kind() == Code::KEYED_STORE_IC)) { | |
42 // In case we are compiling an IC for dictionary loads or stores, just | |
43 // check whether the name is unique. | |
44 if (name.is_identical_to(isolate()->factory()->normal_ic_symbol())) { | |
45 // Keyed loads with dictionaries shouldn't be here, they go generic. | |
46 // The DCHECK is to protect assumptions when --vector-ics is on. | |
47 DCHECK(kind() != Code::KEYED_LOAD_IC); | |
48 Register tmp = scratch1(); | |
49 __ JumpIfSmi(this->name(), &miss); | |
50 __ ldr(tmp, FieldMemOperand(this->name(), HeapObject::kMapOffset)); | |
51 __ ldrb(tmp, FieldMemOperand(tmp, Map::kInstanceTypeOffset)); | |
52 __ JumpIfNotUniqueNameInstanceType(tmp, &miss); | |
53 } else { | |
54 __ cmp(this->name(), Operand(name)); | |
55 __ b(ne, &miss); | |
56 } | |
57 } | |
58 | |
59 Label number_case; | |
60 Label* smi_target = IncludesNumberMap(maps) ? &number_case : &miss; | |
61 __ JumpIfSmi(receiver(), smi_target); | |
62 | |
63 // Polymorphic keyed stores may use the map register | |
64 Register map_reg = scratch1(); | |
65 DCHECK(kind() != Code::KEYED_STORE_IC || | |
66 map_reg.is(StoreTransitionDescriptor::MapRegister())); | |
67 | |
68 int receiver_count = maps->length(); | |
69 int number_of_handled_maps = 0; | |
70 __ ldr(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset)); | |
71 for (int current = 0; current < receiver_count; ++current) { | |
72 Handle<Map> map = maps->at(current); | |
73 if (!map->is_deprecated()) { | |
74 number_of_handled_maps++; | |
75 Handle<WeakCell> cell = Map::WeakCellForMap(map); | |
76 __ CmpWeakValue(map_reg, cell, scratch2()); | |
77 if (map->instance_type() == HEAP_NUMBER_TYPE) { | |
78 DCHECK(!number_case.is_unused()); | |
79 __ bind(&number_case); | |
80 } | |
81 __ Jump(handlers->at(current), RelocInfo::CODE_TARGET, eq); | |
82 } | |
83 } | |
84 DCHECK(number_of_handled_maps != 0); | |
85 | |
86 __ bind(&miss); | |
87 TailCallBuiltin(masm(), MissBuiltin(kind())); | |
88 | |
89 // Return the generated code. | |
90 InlineCacheState state = | |
91 number_of_handled_maps > 1 ? POLYMORPHIC : MONOMORPHIC; | |
92 return GetCode(kind(), type, name, state); | |
93 } | |
94 | |
95 | |
96 Handle<Code> PropertyICCompiler::CompileKeyedStorePolymorphic( | |
97 MapHandleList* receiver_maps, CodeHandleList* handler_stubs, | |
98 MapHandleList* transitioned_maps) { | |
99 Label miss; | |
100 __ JumpIfSmi(receiver(), &miss); | |
101 | |
102 int receiver_count = receiver_maps->length(); | |
103 Register map_reg = scratch1(); | |
104 __ ldr(map_reg, FieldMemOperand(receiver(), HeapObject::kMapOffset)); | |
105 for (int i = 0; i < receiver_count; ++i) { | |
106 Handle<WeakCell> cell = Map::WeakCellForMap(receiver_maps->at(i)); | |
107 __ CmpWeakValue(map_reg, cell, scratch2()); | |
108 if (transitioned_maps->at(i).is_null()) { | |
109 __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, eq); | |
110 } else { | |
111 Label next_map; | |
112 __ b(ne, &next_map); | |
113 Handle<WeakCell> cell = Map::WeakCellForMap(transitioned_maps->at(i)); | |
114 Register transition_map = scratch1(); | |
115 DCHECK(!FLAG_vector_stores && | |
116 transition_map.is(StoreTransitionDescriptor::MapRegister())); | |
117 __ LoadWeakValue(transition_map, cell, &miss); | |
118 __ Jump(handler_stubs->at(i), RelocInfo::CODE_TARGET, al); | |
119 __ bind(&next_map); | |
120 } | |
121 } | |
122 | |
123 __ bind(&miss); | |
124 TailCallBuiltin(masm(), MissBuiltin(kind())); | |
125 | |
126 // Return the generated code. | |
127 return GetCode(kind(), Code::NORMAL, factory()->empty_string(), POLYMORPHIC); | |
128 } | |
129 | |
130 | |
131 #undef __ | |
132 } // namespace internal | 30 } // namespace internal |
133 } // namespace v8 | 31 } // namespace v8 |
134 | 32 |
135 #endif // V8_TARGET_ARCH_ARM | 33 #endif // V8_TARGET_ARCH_ARM |
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