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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_IA32_CODE_STUBS_IA32_H_ | 5 #ifndef V8_IA32_CODE_STUBS_IA32_H_ |
6 #define V8_IA32_CODE_STUBS_IA32_H_ | 6 #define V8_IA32_CODE_STUBS_IA32_H_ |
7 | 7 |
8 namespace v8 { | 8 namespace v8 { |
9 namespace internal { | 9 namespace internal { |
10 | 10 |
11 | 11 |
12 void ArrayNativeCode(MacroAssembler* masm, | 12 void ArrayNativeCode(MacroAssembler* masm, |
13 bool construct_call, | 13 bool construct_call, |
14 Label* call_generic_code); | 14 Label* call_generic_code); |
15 | 15 |
16 | 16 |
17 class StringHelper : public AllStatic { | 17 class StringHelper : public AllStatic { |
18 public: | 18 public: |
19 // Generate code for copying characters using the rep movs instruction. | 19 // Generate code for copying characters using the rep movs instruction. |
20 // Copies ecx characters from esi to edi. Copying of overlapping regions is | 20 // Copies ecx characters from esi to edi. Copying of overlapping regions is |
21 // not supported. | 21 // not supported. |
22 static void GenerateCopyCharacters(MacroAssembler* masm, | 22 static void GenerateCopyCharacters(MacroAssembler* masm, |
23 Register dest, | 23 Register dest, |
24 Register src, | 24 Register src, |
25 Register count, | 25 Register count, |
26 Register scratch, | 26 Register scratch, |
27 String::Encoding encoding); | 27 String::Encoding encoding); |
28 | 28 |
29 // Compares two flat ASCII strings and returns result in eax. | 29 // Compares two flat one byte strings and returns result in eax. |
30 static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm, | 30 static void GenerateCompareFlatOneByteStrings(MacroAssembler* masm, |
| 31 Register left, Register right, |
| 32 Register scratch1, |
| 33 Register scratch2, |
| 34 Register scratch3); |
| 35 |
| 36 // Compares two flat one byte strings for equality and returns result in eax. |
| 37 static void GenerateFlatOneByteStringEquals(MacroAssembler* masm, |
31 Register left, Register right, | 38 Register left, Register right, |
32 Register scratch1, | 39 Register scratch1, |
33 Register scratch2, | 40 Register scratch2); |
34 Register scratch3); | |
35 | |
36 // Compares two flat ASCII strings for equality and returns result in eax. | |
37 static void GenerateFlatAsciiStringEquals(MacroAssembler* masm, | |
38 Register left, | |
39 Register right, | |
40 Register scratch1, | |
41 Register scratch2); | |
42 | 41 |
43 private: | 42 private: |
44 static void GenerateAsciiCharsCompareLoop( | 43 static void GenerateOneByteCharsCompareLoop( |
45 MacroAssembler* masm, | 44 MacroAssembler* masm, Register left, Register right, Register length, |
46 Register left, | 45 Register scratch, Label* chars_not_equal, |
47 Register right, | |
48 Register length, | |
49 Register scratch, | |
50 Label* chars_not_equal, | |
51 Label::Distance chars_not_equal_near = Label::kFar); | 46 Label::Distance chars_not_equal_near = Label::kFar); |
52 | 47 |
53 DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper); | 48 DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper); |
54 }; | 49 }; |
55 | 50 |
56 | 51 |
57 class NameDictionaryLookupStub: public PlatformCodeStub { | 52 class NameDictionaryLookupStub: public PlatformCodeStub { |
58 public: | 53 public: |
59 enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP }; | 54 enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP }; |
60 | 55 |
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383 | 378 |
384 RegisterAllocation regs_; | 379 RegisterAllocation regs_; |
385 | 380 |
386 DISALLOW_COPY_AND_ASSIGN(RecordWriteStub); | 381 DISALLOW_COPY_AND_ASSIGN(RecordWriteStub); |
387 }; | 382 }; |
388 | 383 |
389 | 384 |
390 } } // namespace v8::internal | 385 } } // namespace v8::internal |
391 | 386 |
392 #endif // V8_IA32_CODE_STUBS_IA32_H_ | 387 #endif // V8_IA32_CODE_STUBS_IA32_H_ |
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