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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" | 8 #include "src/code-stubs.h" |
| 9 | 9 |
| 10 namespace v8 { | 10 namespace v8 { |
| (...skipping 10 matching lines...) Expand all Loading... |
| 21 explicit StoreBufferOverflowStub(Isolate* isolate) | 21 explicit StoreBufferOverflowStub(Isolate* isolate) |
| 22 : PlatformCodeStub(isolate) { } | 22 : PlatformCodeStub(isolate) { } |
| 23 | 23 |
| 24 void Generate(MacroAssembler* masm); | 24 void Generate(MacroAssembler* masm); |
| 25 | 25 |
| 26 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); | 26 static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate); |
| 27 virtual bool SometimesSetsUpAFrame() { return false; } | 27 virtual bool SometimesSetsUpAFrame() { return false; } |
| 28 | 28 |
| 29 private: | 29 private: |
| 30 Major MajorKey() const { return StoreBufferOverflow; } | 30 Major MajorKey() const { return StoreBufferOverflow; } |
| 31 int MinorKey() const { return 0; } | 31 uint32_t MinorKey() const { return 0; } |
| 32 }; | 32 }; |
| 33 | 33 |
| 34 | 34 |
| 35 class StringHelper : public AllStatic { | 35 class StringHelper : public AllStatic { |
| 36 public: | 36 public: |
| 37 // Generate code for copying characters using the rep movs instruction. | 37 // Generate code for copying characters using the rep movs instruction. |
| 38 // Copies ecx characters from esi to edi. Copying of overlapping regions is | 38 // Copies ecx characters from esi to edi. Copying of overlapping regions is |
| 39 // not supported. | 39 // not supported. |
| 40 static void GenerateCopyCharacters(MacroAssembler* masm, | 40 static void GenerateCopyCharacters(MacroAssembler* masm, |
| 41 Register dest, | 41 Register dest, |
| (...skipping 19 matching lines...) Expand all Loading... |
| 61 DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper); | 61 DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper); |
| 62 }; | 62 }; |
| 63 | 63 |
| 64 | 64 |
| 65 class SubStringStub: public PlatformCodeStub { | 65 class SubStringStub: public PlatformCodeStub { |
| 66 public: | 66 public: |
| 67 explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {} | 67 explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {} |
| 68 | 68 |
| 69 private: | 69 private: |
| 70 Major MajorKey() const { return SubString; } | 70 Major MajorKey() const { return SubString; } |
| 71 int MinorKey() const { return 0; } | 71 uint32_t MinorKey() const { return 0; } |
| 72 | 72 |
| 73 void Generate(MacroAssembler* masm); | 73 void Generate(MacroAssembler* masm); |
| 74 }; | 74 }; |
| 75 | 75 |
| 76 | 76 |
| 77 class StringCompareStub: public PlatformCodeStub { | 77 class StringCompareStub: public PlatformCodeStub { |
| 78 public: | 78 public: |
| 79 explicit StringCompareStub(Isolate* isolate) : PlatformCodeStub(isolate) { } | 79 explicit StringCompareStub(Isolate* isolate) : PlatformCodeStub(isolate) { } |
| 80 | 80 |
| 81 // Compares two flat ASCII strings and returns result in eax. | 81 // Compares two flat ASCII strings and returns result in eax. |
| 82 static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm, | 82 static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm, |
| 83 Register left, | 83 Register left, |
| 84 Register right, | 84 Register right, |
| 85 Register scratch1, | 85 Register scratch1, |
| 86 Register scratch2, | 86 Register scratch2, |
| 87 Register scratch3); | 87 Register scratch3); |
| 88 | 88 |
| 89 // Compares two flat ASCII strings for equality and returns result | 89 // Compares two flat ASCII strings for equality and returns result |
| 90 // in eax. | 90 // in eax. |
| 91 static void GenerateFlatAsciiStringEquals(MacroAssembler* masm, | 91 static void GenerateFlatAsciiStringEquals(MacroAssembler* masm, |
| 92 Register left, | 92 Register left, |
| 93 Register right, | 93 Register right, |
| 94 Register scratch1, | 94 Register scratch1, |
| 95 Register scratch2); | 95 Register scratch2); |
| 96 | 96 |
| 97 private: | 97 private: |
| 98 virtual Major MajorKey() const { return StringCompare; } | 98 virtual Major MajorKey() const { return StringCompare; } |
| 99 virtual int MinorKey() const { return 0; } | 99 virtual uint32_t MinorKey() const { return 0; } |
| 100 virtual void Generate(MacroAssembler* masm); | 100 virtual void Generate(MacroAssembler* masm); |
| 101 | 101 |
| 102 static void GenerateAsciiCharsCompareLoop( | 102 static void GenerateAsciiCharsCompareLoop( |
| 103 MacroAssembler* masm, | 103 MacroAssembler* masm, |
| 104 Register left, | 104 Register left, |
| 105 Register right, | 105 Register right, |
| 106 Register length, | 106 Register length, |
| 107 Register scratch, | 107 Register scratch, |
| 108 Label* chars_not_equal, | 108 Label* chars_not_equal, |
| 109 Label::Distance chars_not_equal_near = Label::kFar); | 109 Label::Distance chars_not_equal_near = Label::kFar); |
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| 148 static const int kCapacityOffset = | 148 static const int kCapacityOffset = |
| 149 NameDictionary::kHeaderSize + | 149 NameDictionary::kHeaderSize + |
| 150 NameDictionary::kCapacityIndex * kPointerSize; | 150 NameDictionary::kCapacityIndex * kPointerSize; |
| 151 | 151 |
| 152 static const int kElementsStartOffset = | 152 static const int kElementsStartOffset = |
| 153 NameDictionary::kHeaderSize + | 153 NameDictionary::kHeaderSize + |
| 154 NameDictionary::kElementsStartIndex * kPointerSize; | 154 NameDictionary::kElementsStartIndex * kPointerSize; |
| 155 | 155 |
| 156 Major MajorKey() const { return NameDictionaryLookup; } | 156 Major MajorKey() const { return NameDictionaryLookup; } |
| 157 | 157 |
| 158 int MinorKey() const { | 158 uint32_t MinorKey() const { |
| 159 return DictionaryBits::encode(dictionary_.code()) | | 159 return DictionaryBits::encode(dictionary_.code()) | |
| 160 ResultBits::encode(result_.code()) | | 160 ResultBits::encode(result_.code()) | |
| 161 IndexBits::encode(index_.code()) | | 161 IndexBits::encode(index_.code()) | |
| 162 LookupModeBits::encode(mode_); | 162 LookupModeBits::encode(mode_); |
| 163 } | 163 } |
| 164 | 164 |
| 165 class DictionaryBits: public BitField<int, 0, 3> {}; | 165 class DictionaryBits: public BitField<int, 0, 3> {}; |
| 166 class ResultBits: public BitField<int, 3, 3> {}; | 166 class ResultBits: public BitField<int, 3, 3> {}; |
| 167 class IndexBits: public BitField<int, 6, 3> {}; | 167 class IndexBits: public BitField<int, 6, 3> {}; |
| 168 class LookupModeBits: public BitField<LookupMode, 9, 1> {}; | 168 class LookupModeBits: public BitField<LookupMode, 9, 1> {}; |
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| 376 void Generate(MacroAssembler* masm); | 376 void Generate(MacroAssembler* masm); |
| 377 void GenerateIncremental(MacroAssembler* masm, Mode mode); | 377 void GenerateIncremental(MacroAssembler* masm, Mode mode); |
| 378 void CheckNeedsToInformIncrementalMarker( | 378 void CheckNeedsToInformIncrementalMarker( |
| 379 MacroAssembler* masm, | 379 MacroAssembler* masm, |
| 380 OnNoNeedToInformIncrementalMarker on_no_need, | 380 OnNoNeedToInformIncrementalMarker on_no_need, |
| 381 Mode mode); | 381 Mode mode); |
| 382 void InformIncrementalMarker(MacroAssembler* masm); | 382 void InformIncrementalMarker(MacroAssembler* masm); |
| 383 | 383 |
| 384 Major MajorKey() const { return RecordWrite; } | 384 Major MajorKey() const { return RecordWrite; } |
| 385 | 385 |
| 386 int MinorKey() const { | 386 uint32_t MinorKey() const { |
| 387 return ObjectBits::encode(object_.code()) | | 387 return ObjectBits::encode(object_.code()) | |
| 388 ValueBits::encode(value_.code()) | | 388 ValueBits::encode(value_.code()) | |
| 389 AddressBits::encode(address_.code()) | | 389 AddressBits::encode(address_.code()) | |
| 390 RememberedSetActionBits::encode(remembered_set_action_); | 390 RememberedSetActionBits::encode(remembered_set_action_); |
| 391 } | 391 } |
| 392 | 392 |
| 393 void Activate(Code* code) { | 393 void Activate(Code* code) { |
| 394 code->GetHeap()->incremental_marking()->ActivateGeneratedStub(code); | 394 code->GetHeap()->incremental_marking()->ActivateGeneratedStub(code); |
| 395 } | 395 } |
| 396 | 396 |
| 397 class ObjectBits: public BitField<int, 0, 3> {}; | 397 class ObjectBits: public BitField<int, 0, 3> {}; |
| 398 class ValueBits: public BitField<int, 3, 3> {}; | 398 class ValueBits: public BitField<int, 3, 3> {}; |
| 399 class AddressBits: public BitField<int, 6, 3> {}; | 399 class AddressBits: public BitField<int, 6, 3> {}; |
| 400 class RememberedSetActionBits: public BitField<RememberedSetAction, 9, 1> {}; | 400 class RememberedSetActionBits: public BitField<RememberedSetAction, 9, 1> {}; |
| 401 | 401 |
| 402 Register object_; | 402 Register object_; |
| 403 Register value_; | 403 Register value_; |
| 404 Register address_; | 404 Register address_; |
| 405 RememberedSetAction remembered_set_action_; | 405 RememberedSetAction remembered_set_action_; |
| 406 RegisterAllocation regs_; | 406 RegisterAllocation regs_; |
| 407 }; | 407 }; |
| 408 | 408 |
| 409 | 409 |
| 410 } } // namespace v8::internal | 410 } } // namespace v8::internal |
| 411 | 411 |
| 412 #endif // V8_X87_CODE_STUBS_X87_H_ | 412 #endif // V8_X87_CODE_STUBS_X87_H_ |
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