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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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 #ifndef V8_X87_CODE_STUBS_X87_H_ | 5 #ifndef V8_X87_CODE_STUBS_X87_H_ |
6 #define V8_X87_CODE_STUBS_X87_H_ | 6 #define V8_X87_CODE_STUBS_X87_H_ |
7 | 7 |
8 #include "src/code-stubs.h" | |
9 | |
10 namespace v8 { | 8 namespace v8 { |
11 namespace internal { | 9 namespace internal { |
12 | 10 |
13 | 11 |
14 void ArrayNativeCode(MacroAssembler* masm, | 12 void ArrayNativeCode(MacroAssembler* masm, |
15 bool construct_call, | 13 bool construct_call, |
16 Label* call_generic_code); | 14 Label* call_generic_code); |
17 | 15 |
18 | 16 |
19 class StringHelper : public AllStatic { | 17 class StringHelper : public AllStatic { |
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92 static const int kTotalProbes = 20; | 90 static const int kTotalProbes = 20; |
93 | 91 |
94 static const int kCapacityOffset = | 92 static const int kCapacityOffset = |
95 NameDictionary::kHeaderSize + | 93 NameDictionary::kHeaderSize + |
96 NameDictionary::kCapacityIndex * kPointerSize; | 94 NameDictionary::kCapacityIndex * kPointerSize; |
97 | 95 |
98 static const int kElementsStartOffset = | 96 static const int kElementsStartOffset = |
99 NameDictionary::kHeaderSize + | 97 NameDictionary::kHeaderSize + |
100 NameDictionary::kElementsStartIndex * kPointerSize; | 98 NameDictionary::kElementsStartIndex * kPointerSize; |
101 | 99 |
102 virtual inline Major MajorKey() const FINAL OVERRIDE; | |
103 | |
104 Register dictionary() const { | 100 Register dictionary() const { |
105 return Register::from_code(DictionaryBits::decode(minor_key_)); | 101 return Register::from_code(DictionaryBits::decode(minor_key_)); |
106 } | 102 } |
107 | 103 |
108 Register result() const { | 104 Register result() const { |
109 return Register::from_code(ResultBits::decode(minor_key_)); | 105 return Register::from_code(ResultBits::decode(minor_key_)); |
110 } | 106 } |
111 | 107 |
112 Register index() const { | 108 Register index() const { |
113 return Register::from_code(IndexBits::decode(minor_key_)); | 109 return Register::from_code(IndexBits::decode(minor_key_)); |
114 } | 110 } |
115 | 111 |
116 LookupMode mode() const { return LookupModeBits::decode(minor_key_); } | 112 LookupMode mode() const { return LookupModeBits::decode(minor_key_); } |
117 | 113 |
118 class DictionaryBits: public BitField<int, 0, 3> {}; | 114 class DictionaryBits: public BitField<int, 0, 3> {}; |
119 class ResultBits: public BitField<int, 3, 3> {}; | 115 class ResultBits: public BitField<int, 3, 3> {}; |
120 class IndexBits: public BitField<int, 6, 3> {}; | 116 class IndexBits: public BitField<int, 6, 3> {}; |
121 class LookupModeBits: public BitField<LookupMode, 9, 1> {}; | 117 class LookupModeBits: public BitField<LookupMode, 9, 1> {}; |
122 | 118 |
123 DISALLOW_COPY_AND_ASSIGN(NameDictionaryLookupStub); | 119 DEFINE_CODE_STUB(NameDictionaryLookup, PlatformCodeStub); |
124 }; | 120 }; |
125 | 121 |
126 | 122 |
127 class RecordWriteStub: public PlatformCodeStub { | 123 class RecordWriteStub: public PlatformCodeStub { |
128 public: | 124 public: |
129 RecordWriteStub(Isolate* isolate, | 125 RecordWriteStub(Isolate* isolate, |
130 Register object, | 126 Register object, |
131 Register value, | 127 Register value, |
132 Register address, | 128 Register address, |
133 RememberedSetAction remembered_set_action) | 129 RememberedSetAction remembered_set_action) |
134 : PlatformCodeStub(isolate), | 130 : PlatformCodeStub(isolate), |
135 regs_(object, // An input reg. | 131 regs_(object, // An input reg. |
136 address, // An input reg. | 132 address, // An input reg. |
137 value) { // One scratch reg. | 133 value) { // One scratch reg. |
138 minor_key_ = ObjectBits::encode(object.code()) | | 134 minor_key_ = ObjectBits::encode(object.code()) | |
139 ValueBits::encode(value.code()) | | 135 ValueBits::encode(value.code()) | |
140 AddressBits::encode(address.code()) | | 136 AddressBits::encode(address.code()) | |
141 RememberedSetActionBits::encode(remembered_set_action); | 137 RememberedSetActionBits::encode(remembered_set_action); |
142 } | 138 } |
143 | 139 |
| 140 RecordWriteStub(uint32_t key, Isolate* isolate) |
| 141 : PlatformCodeStub(key, isolate), regs_(object(), address(), value()) {} |
| 142 |
144 enum Mode { | 143 enum Mode { |
145 STORE_BUFFER_ONLY, | 144 STORE_BUFFER_ONLY, |
146 INCREMENTAL, | 145 INCREMENTAL, |
147 INCREMENTAL_COMPACTION | 146 INCREMENTAL_COMPACTION |
148 }; | 147 }; |
149 | 148 |
150 virtual bool SometimesSetsUpAFrame() { return false; } | 149 virtual bool SometimesSetsUpAFrame() { return false; } |
151 | 150 |
152 static const byte kTwoByteNopInstruction = 0x3c; // Cmpb al, #imm8. | 151 static const byte kTwoByteNopInstruction = 0x3c; // Cmpb al, #imm8. |
153 static const byte kTwoByteJumpInstruction = 0xeb; // Jmp #imm8. | 152 static const byte kTwoByteJumpInstruction = 0xeb; // Jmp #imm8. |
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316 return no_reg; | 315 return no_reg; |
317 } | 316 } |
318 friend class RecordWriteStub; | 317 friend class RecordWriteStub; |
319 }; | 318 }; |
320 | 319 |
321 enum OnNoNeedToInformIncrementalMarker { | 320 enum OnNoNeedToInformIncrementalMarker { |
322 kReturnOnNoNeedToInformIncrementalMarker, | 321 kReturnOnNoNeedToInformIncrementalMarker, |
323 kUpdateRememberedSetOnNoNeedToInformIncrementalMarker | 322 kUpdateRememberedSetOnNoNeedToInformIncrementalMarker |
324 }; | 323 }; |
325 | 324 |
326 virtual inline Major MajorKey() const FINAL OVERRIDE; | 325 virtual inline Major MajorKey() const FINAL OVERRIDE { return RecordWrite; } |
327 | 326 |
328 void Generate(MacroAssembler* masm); | 327 void Generate(MacroAssembler* masm); |
329 void GenerateIncremental(MacroAssembler* masm, Mode mode); | 328 void GenerateIncremental(MacroAssembler* masm, Mode mode); |
330 void CheckNeedsToInformIncrementalMarker( | 329 void CheckNeedsToInformIncrementalMarker( |
331 MacroAssembler* masm, | 330 MacroAssembler* masm, |
332 OnNoNeedToInformIncrementalMarker on_no_need, | 331 OnNoNeedToInformIncrementalMarker on_no_need, |
333 Mode mode); | 332 Mode mode); |
334 void InformIncrementalMarker(MacroAssembler* masm); | 333 void InformIncrementalMarker(MacroAssembler* masm); |
335 | 334 |
336 void Activate(Code* code) { | 335 void Activate(Code* code) { |
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360 | 359 |
361 RegisterAllocation regs_; | 360 RegisterAllocation regs_; |
362 | 361 |
363 DISALLOW_COPY_AND_ASSIGN(RecordWriteStub); | 362 DISALLOW_COPY_AND_ASSIGN(RecordWriteStub); |
364 }; | 363 }; |
365 | 364 |
366 | 365 |
367 } } // namespace v8::internal | 366 } } // namespace v8::internal |
368 | 367 |
369 #endif // V8_X87_CODE_STUBS_X87_H_ | 368 #endif // V8_X87_CODE_STUBS_X87_H_ |
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