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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 { |
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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, |
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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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