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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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79 virtual bool SometimesSetsUpAFrame() { return false; } | 79 virtual bool SometimesSetsUpAFrame() { return false; } |
80 | 80 |
81 private: | 81 private: |
82 SaveFPRegsMode save_doubles_; | 82 SaveFPRegsMode save_doubles_; |
83 | 83 |
84 Major MajorKey() { return StoreBufferOverflow; } | 84 Major MajorKey() { return StoreBufferOverflow; } |
85 int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } | 85 int MinorKey() { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; } |
86 }; | 86 }; |
87 | 87 |
88 | 88 |
89 class UnaryOpStub: public PlatformCodeStub { | |
90 public: | |
91 UnaryOpStub(Token::Value op, | |
92 UnaryOverwriteMode mode, | |
93 UnaryOpIC::TypeInfo operand_type = UnaryOpIC::UNINITIALIZED) | |
94 : op_(op), | |
95 mode_(mode), | |
96 operand_type_(operand_type) { | |
97 } | |
98 | |
99 private: | |
100 Token::Value op_; | |
101 UnaryOverwriteMode mode_; | |
102 | |
103 // Operand type information determined at runtime. | |
104 UnaryOpIC::TypeInfo operand_type_; | |
105 | |
106 virtual void PrintName(StringStream* stream); | |
107 | |
108 class ModeBits: public BitField<UnaryOverwriteMode, 0, 1> {}; | |
109 class OpBits: public BitField<Token::Value, 1, 7> {}; | |
110 class OperandTypeInfoBits: public BitField<UnaryOpIC::TypeInfo, 8, 3> {}; | |
111 | |
112 Major MajorKey() { return UnaryOp; } | |
113 int MinorKey() { | |
114 return ModeBits::encode(mode_) | |
115 | OpBits::encode(op_) | |
116 | OperandTypeInfoBits::encode(operand_type_); | |
117 } | |
118 | |
119 // Note: A lot of the helper functions below will vanish when we use virtual | |
120 // function instead of switch more often. | |
121 void Generate(MacroAssembler* masm); | |
122 | |
123 void GenerateTypeTransition(MacroAssembler* masm); | |
124 | |
125 void GenerateSmiStub(MacroAssembler* masm); | |
126 void GenerateSmiStubSub(MacroAssembler* masm); | |
127 void GenerateSmiStubBitNot(MacroAssembler* masm); | |
128 void GenerateSmiCodeSub(MacroAssembler* masm, | |
129 Label* non_smi, | |
130 Label* undo, | |
131 Label* slow, | |
132 Label::Distance non_smi_near = Label::kFar, | |
133 Label::Distance undo_near = Label::kFar, | |
134 Label::Distance slow_near = Label::kFar); | |
135 void GenerateSmiCodeBitNot(MacroAssembler* masm, | |
136 Label* non_smi, | |
137 Label::Distance non_smi_near = Label::kFar); | |
138 void GenerateSmiCodeUndo(MacroAssembler* masm); | |
139 | |
140 void GenerateNumberStub(MacroAssembler* masm); | |
141 void GenerateNumberStubSub(MacroAssembler* masm); | |
142 void GenerateNumberStubBitNot(MacroAssembler* masm); | |
143 void GenerateHeapNumberCodeSub(MacroAssembler* masm, Label* slow); | |
144 void GenerateHeapNumberCodeBitNot(MacroAssembler* masm, Label* slow); | |
145 | |
146 void GenerateGenericStub(MacroAssembler* masm); | |
147 void GenerateGenericStubSub(MacroAssembler* masm); | |
148 void GenerateGenericStubBitNot(MacroAssembler* masm); | |
149 void GenerateGenericCodeFallback(MacroAssembler* masm); | |
150 | |
151 virtual Code::Kind GetCodeKind() const { return Code::UNARY_OP_IC; } | |
152 | |
153 virtual InlineCacheState GetICState() { | |
154 return UnaryOpIC::ToState(operand_type_); | |
155 } | |
156 | |
157 virtual void FinishCode(Handle<Code> code) { | |
158 code->set_unary_op_type(operand_type_); | |
159 } | |
160 }; | |
161 | |
162 | |
163 class StringHelper : public AllStatic { | 89 class StringHelper : public AllStatic { |
164 public: | 90 public: |
165 // Generate code for copying characters using a simple loop. This should only | 91 // Generate code for copying characters using a simple loop. This should only |
166 // be used in places where the number of characters is small and the | 92 // be used in places where the number of characters is small and the |
167 // additional setup and checking in GenerateCopyCharactersREP adds too much | 93 // additional setup and checking in GenerateCopyCharactersREP adds too much |
168 // overhead. Copying of overlapping regions is not supported. | 94 // overhead. Copying of overlapping regions is not supported. |
169 static void GenerateCopyCharacters(MacroAssembler* masm, | 95 static void GenerateCopyCharacters(MacroAssembler* masm, |
170 Register dest, | 96 Register dest, |
171 Register src, | 97 Register src, |
172 Register count, | 98 Register count, |
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648 Register address_; | 574 Register address_; |
649 RememberedSetAction remembered_set_action_; | 575 RememberedSetAction remembered_set_action_; |
650 SaveFPRegsMode save_fp_regs_mode_; | 576 SaveFPRegsMode save_fp_regs_mode_; |
651 RegisterAllocation regs_; | 577 RegisterAllocation regs_; |
652 }; | 578 }; |
653 | 579 |
654 | 580 |
655 } } // namespace v8::internal | 581 } } // namespace v8::internal |
656 | 582 |
657 #endif // V8_IA32_CODE_STUBS_IA32_H_ | 583 #endif // V8_IA32_CODE_STUBS_IA32_H_ |
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