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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 |
89 class StringHelper : public AllStatic { | 163 class StringHelper : public AllStatic { |
90 public: | 164 public: |
91 // Generate code for copying characters using a simple loop. This should only | 165 // Generate code for copying characters using a simple loop. This should only |
92 // be used in places where the number of characters is small and the | 166 // be used in places where the number of characters is small and the |
93 // additional setup and checking in GenerateCopyCharactersREP adds too much | 167 // additional setup and checking in GenerateCopyCharactersREP adds too much |
94 // overhead. Copying of overlapping regions is not supported. | 168 // overhead. Copying of overlapping regions is not supported. |
95 static void GenerateCopyCharacters(MacroAssembler* masm, | 169 static void GenerateCopyCharacters(MacroAssembler* masm, |
96 Register dest, | 170 Register dest, |
97 Register src, | 171 Register src, |
98 Register count, | 172 Register count, |
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574 Register address_; | 648 Register address_; |
575 RememberedSetAction remembered_set_action_; | 649 RememberedSetAction remembered_set_action_; |
576 SaveFPRegsMode save_fp_regs_mode_; | 650 SaveFPRegsMode save_fp_regs_mode_; |
577 RegisterAllocation regs_; | 651 RegisterAllocation regs_; |
578 }; | 652 }; |
579 | 653 |
580 | 654 |
581 } } // namespace v8::internal | 655 } } // namespace v8::internal |
582 | 656 |
583 #endif // V8_IA32_CODE_STUBS_IA32_H_ | 657 #endif // V8_IA32_CODE_STUBS_IA32_H_ |
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