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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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| 64 | 64 |
| 65 void Generate(MacroAssembler* masm); | 65 void Generate(MacroAssembler* masm); |
| 66 | 66 |
| 67 private: | 67 private: |
| 68 Register tos_; | 68 Register tos_; |
| 69 Major MajorKey() { return ToBoolean; } | 69 Major MajorKey() { return ToBoolean; } |
| 70 int MinorKey() { return tos_.code(); } | 70 int MinorKey() { return tos_.code(); } |
| 71 }; | 71 }; |
| 72 | 72 |
| 73 | 73 |
| 74 class TypeRecordingUnaryOpStub: public CodeStub { | 74 class UnaryOpStub: public CodeStub { |
| 75 public: | 75 public: |
| 76 TypeRecordingUnaryOpStub(Token::Value op, UnaryOverwriteMode mode) | 76 UnaryOpStub(Token::Value op, UnaryOverwriteMode mode) |
| 77 : op_(op), | 77 : op_(op), |
| 78 mode_(mode), | 78 mode_(mode), |
| 79 operand_type_(TRUnaryOpIC::UNINITIALIZED), | 79 operand_type_(UnaryOpIC::UNINITIALIZED), |
| 80 name_(NULL) { | 80 name_(NULL) { |
| 81 } | 81 } |
| 82 | 82 |
| 83 TypeRecordingUnaryOpStub( | 83 UnaryOpStub( |
| 84 int key, | 84 int key, |
| 85 TRUnaryOpIC::TypeInfo operand_type) | 85 UnaryOpIC::TypeInfo operand_type) |
| 86 : op_(OpBits::decode(key)), | 86 : op_(OpBits::decode(key)), |
| 87 mode_(ModeBits::decode(key)), | 87 mode_(ModeBits::decode(key)), |
| 88 operand_type_(operand_type), | 88 operand_type_(operand_type), |
| 89 name_(NULL) { | 89 name_(NULL) { |
| 90 } | 90 } |
| 91 | 91 |
| 92 private: | 92 private: |
| 93 Token::Value op_; | 93 Token::Value op_; |
| 94 UnaryOverwriteMode mode_; | 94 UnaryOverwriteMode mode_; |
| 95 | 95 |
| 96 // Operand type information determined at runtime. | 96 // Operand type information determined at runtime. |
| 97 TRUnaryOpIC::TypeInfo operand_type_; | 97 UnaryOpIC::TypeInfo operand_type_; |
| 98 | 98 |
| 99 char* name_; | 99 char* name_; |
| 100 | 100 |
| 101 const char* GetName(); | 101 const char* GetName(); |
| 102 | 102 |
| 103 #ifdef DEBUG | 103 #ifdef DEBUG |
| 104 void Print() { | 104 void Print() { |
| 105 PrintF("TypeRecordingUnaryOpStub %d (op %s), " | 105 PrintF("UnaryOpStub %d (op %s), " |
| 106 "(mode %d, runtime_type_info %s)\n", | 106 "(mode %d, runtime_type_info %s)\n", |
| 107 MinorKey(), | 107 MinorKey(), |
| 108 Token::String(op_), | 108 Token::String(op_), |
| 109 static_cast<int>(mode_), | 109 static_cast<int>(mode_), |
| 110 TRUnaryOpIC::GetName(operand_type_)); | 110 UnaryOpIC::GetName(operand_type_)); |
| 111 } | 111 } |
| 112 #endif | 112 #endif |
| 113 | 113 |
| 114 class ModeBits: public BitField<UnaryOverwriteMode, 0, 1> {}; | 114 class ModeBits: public BitField<UnaryOverwriteMode, 0, 1> {}; |
| 115 class OpBits: public BitField<Token::Value, 1, 7> {}; | 115 class OpBits: public BitField<Token::Value, 1, 7> {}; |
| 116 class OperandTypeInfoBits: public BitField<TRUnaryOpIC::TypeInfo, 8, 3> {}; | 116 class OperandTypeInfoBits: public BitField<UnaryOpIC::TypeInfo, 8, 3> {}; |
| 117 | 117 |
| 118 Major MajorKey() { return TypeRecordingUnaryOp; } | 118 Major MajorKey() { return UnaryOp; } |
| 119 int MinorKey() { | 119 int MinorKey() { |
| 120 return ModeBits::encode(mode_) | 120 return ModeBits::encode(mode_) |
| 121 | OpBits::encode(op_) | 121 | OpBits::encode(op_) |
| 122 | OperandTypeInfoBits::encode(operand_type_); | 122 | OperandTypeInfoBits::encode(operand_type_); |
| 123 } | 123 } |
| 124 | 124 |
| 125 // Note: A lot of the helper functions below will vanish when we use virtual | 125 // Note: A lot of the helper functions below will vanish when we use virtual |
| 126 // function instead of switch more often. | 126 // function instead of switch more often. |
| 127 void Generate(MacroAssembler* masm); | 127 void Generate(MacroAssembler* masm); |
| 128 | 128 |
| 129 void GenerateTypeTransition(MacroAssembler* masm); | 129 void GenerateTypeTransition(MacroAssembler* masm); |
| 130 | 130 |
| 131 void GenerateSmiStub(MacroAssembler* masm); | 131 void GenerateSmiStub(MacroAssembler* masm); |
| 132 void GenerateSmiStubSub(MacroAssembler* masm); | 132 void GenerateSmiStubSub(MacroAssembler* masm); |
| 133 void GenerateSmiStubBitNot(MacroAssembler* masm); | 133 void GenerateSmiStubBitNot(MacroAssembler* masm); |
| 134 void GenerateSmiCodeSub(MacroAssembler* masm, Label* non_smi, Label* slow); | 134 void GenerateSmiCodeSub(MacroAssembler* masm, Label* non_smi, Label* slow); |
| 135 void GenerateSmiCodeBitNot(MacroAssembler* masm, Label* slow); | 135 void GenerateSmiCodeBitNot(MacroAssembler* masm, Label* slow); |
| 136 | 136 |
| 137 void GenerateHeapNumberStub(MacroAssembler* masm); | 137 void GenerateHeapNumberStub(MacroAssembler* masm); |
| 138 void GenerateHeapNumberStubSub(MacroAssembler* masm); | 138 void GenerateHeapNumberStubSub(MacroAssembler* masm); |
| 139 void GenerateHeapNumberStubBitNot(MacroAssembler* masm); | 139 void GenerateHeapNumberStubBitNot(MacroAssembler* masm); |
| 140 void GenerateHeapNumberCodeSub(MacroAssembler* masm, Label* slow); | 140 void GenerateHeapNumberCodeSub(MacroAssembler* masm, Label* slow); |
| 141 void GenerateHeapNumberCodeBitNot(MacroAssembler* masm, Label* slow); | 141 void GenerateHeapNumberCodeBitNot(MacroAssembler* masm, Label* slow); |
| 142 | 142 |
| 143 void GenerateGenericStub(MacroAssembler* masm); | 143 void GenerateGenericStub(MacroAssembler* masm); |
| 144 void GenerateGenericStubSub(MacroAssembler* masm); | 144 void GenerateGenericStubSub(MacroAssembler* masm); |
| 145 void GenerateGenericStubBitNot(MacroAssembler* masm); | 145 void GenerateGenericStubBitNot(MacroAssembler* masm); |
| 146 void GenerateGenericCodeFallback(MacroAssembler* masm); | 146 void GenerateGenericCodeFallback(MacroAssembler* masm); |
| 147 | 147 |
| 148 virtual int GetCodeKind() { return Code::TYPE_RECORDING_UNARY_OP_IC; } | 148 virtual int GetCodeKind() { return Code::UNARY_OP_IC; } |
| 149 | 149 |
| 150 virtual InlineCacheState GetICState() { | 150 virtual InlineCacheState GetICState() { |
| 151 return TRUnaryOpIC::ToState(operand_type_); | 151 return UnaryOpIC::ToState(operand_type_); |
| 152 } | 152 } |
| 153 | 153 |
| 154 virtual void FinishCode(Code* code) { | 154 virtual void FinishCode(Code* code) { |
| 155 code->set_type_recording_unary_op_type(operand_type_); | 155 code->set_unary_op_type(operand_type_); |
| 156 } | 156 } |
| 157 }; | 157 }; |
| 158 | 158 |
| 159 | 159 |
| 160 class TypeRecordingBinaryOpStub: public CodeStub { | 160 class BinaryOpStub: public CodeStub { |
| 161 public: | 161 public: |
| 162 TypeRecordingBinaryOpStub(Token::Value op, OverwriteMode mode) | 162 BinaryOpStub(Token::Value op, OverwriteMode mode) |
| 163 : op_(op), | 163 : op_(op), |
| 164 mode_(mode), | 164 mode_(mode), |
| 165 operands_type_(TRBinaryOpIC::UNINITIALIZED), | 165 operands_type_(BinaryOpIC::UNINITIALIZED), |
| 166 result_type_(TRBinaryOpIC::UNINITIALIZED), | 166 result_type_(BinaryOpIC::UNINITIALIZED), |
| 167 name_(NULL) { | 167 name_(NULL) { |
| 168 use_vfp3_ = CpuFeatures::IsSupported(VFP3); | 168 use_vfp3_ = CpuFeatures::IsSupported(VFP3); |
| 169 ASSERT(OpBits::is_valid(Token::NUM_TOKENS)); | 169 ASSERT(OpBits::is_valid(Token::NUM_TOKENS)); |
| 170 } | 170 } |
| 171 | 171 |
| 172 TypeRecordingBinaryOpStub( | 172 BinaryOpStub( |
| 173 int key, | 173 int key, |
| 174 TRBinaryOpIC::TypeInfo operands_type, | 174 BinaryOpIC::TypeInfo operands_type, |
| 175 TRBinaryOpIC::TypeInfo result_type = TRBinaryOpIC::UNINITIALIZED) | 175 BinaryOpIC::TypeInfo result_type = BinaryOpIC::UNINITIALIZED) |
| 176 : op_(OpBits::decode(key)), | 176 : op_(OpBits::decode(key)), |
| 177 mode_(ModeBits::decode(key)), | 177 mode_(ModeBits::decode(key)), |
| 178 use_vfp3_(VFP3Bits::decode(key)), | 178 use_vfp3_(VFP3Bits::decode(key)), |
| 179 operands_type_(operands_type), | 179 operands_type_(operands_type), |
| 180 result_type_(result_type), | 180 result_type_(result_type), |
| 181 name_(NULL) { } | 181 name_(NULL) { } |
| 182 | 182 |
| 183 private: | 183 private: |
| 184 enum SmiCodeGenerateHeapNumberResults { | 184 enum SmiCodeGenerateHeapNumberResults { |
| 185 ALLOW_HEAPNUMBER_RESULTS, | 185 ALLOW_HEAPNUMBER_RESULTS, |
| 186 NO_HEAPNUMBER_RESULTS | 186 NO_HEAPNUMBER_RESULTS |
| 187 }; | 187 }; |
| 188 | 188 |
| 189 Token::Value op_; | 189 Token::Value op_; |
| 190 OverwriteMode mode_; | 190 OverwriteMode mode_; |
| 191 bool use_vfp3_; | 191 bool use_vfp3_; |
| 192 | 192 |
| 193 // Operand type information determined at runtime. | 193 // Operand type information determined at runtime. |
| 194 TRBinaryOpIC::TypeInfo operands_type_; | 194 BinaryOpIC::TypeInfo operands_type_; |
| 195 TRBinaryOpIC::TypeInfo result_type_; | 195 BinaryOpIC::TypeInfo result_type_; |
| 196 | 196 |
| 197 char* name_; | 197 char* name_; |
| 198 | 198 |
| 199 const char* GetName(); | 199 const char* GetName(); |
| 200 | 200 |
| 201 #ifdef DEBUG | 201 #ifdef DEBUG |
| 202 void Print() { | 202 void Print() { |
| 203 PrintF("TypeRecordingBinaryOpStub %d (op %s), " | 203 PrintF("BinaryOpStub %d (op %s), " |
| 204 "(mode %d, runtime_type_info %s)\n", | 204 "(mode %d, runtime_type_info %s)\n", |
| 205 MinorKey(), | 205 MinorKey(), |
| 206 Token::String(op_), | 206 Token::String(op_), |
| 207 static_cast<int>(mode_), | 207 static_cast<int>(mode_), |
| 208 TRBinaryOpIC::GetName(operands_type_)); | 208 BinaryOpIC::GetName(operands_type_)); |
| 209 } | 209 } |
| 210 #endif | 210 #endif |
| 211 | 211 |
| 212 // Minor key encoding in 16 bits RRRTTTVOOOOOOOMM. | 212 // Minor key encoding in 16 bits RRRTTTVOOOOOOOMM. |
| 213 class ModeBits: public BitField<OverwriteMode, 0, 2> {}; | 213 class ModeBits: public BitField<OverwriteMode, 0, 2> {}; |
| 214 class OpBits: public BitField<Token::Value, 2, 7> {}; | 214 class OpBits: public BitField<Token::Value, 2, 7> {}; |
| 215 class VFP3Bits: public BitField<bool, 9, 1> {}; | 215 class VFP3Bits: public BitField<bool, 9, 1> {}; |
| 216 class OperandTypeInfoBits: public BitField<TRBinaryOpIC::TypeInfo, 10, 3> {}; | 216 class OperandTypeInfoBits: public BitField<BinaryOpIC::TypeInfo, 10, 3> {}; |
| 217 class ResultTypeInfoBits: public BitField<TRBinaryOpIC::TypeInfo, 13, 3> {}; | 217 class ResultTypeInfoBits: public BitField<BinaryOpIC::TypeInfo, 13, 3> {}; |
| 218 | 218 |
| 219 Major MajorKey() { return TypeRecordingBinaryOp; } | 219 Major MajorKey() { return BinaryOp; } |
| 220 int MinorKey() { | 220 int MinorKey() { |
| 221 return OpBits::encode(op_) | 221 return OpBits::encode(op_) |
| 222 | ModeBits::encode(mode_) | 222 | ModeBits::encode(mode_) |
| 223 | VFP3Bits::encode(use_vfp3_) | 223 | VFP3Bits::encode(use_vfp3_) |
| 224 | OperandTypeInfoBits::encode(operands_type_) | 224 | OperandTypeInfoBits::encode(operands_type_) |
| 225 | ResultTypeInfoBits::encode(result_type_); | 225 | ResultTypeInfoBits::encode(result_type_); |
| 226 } | 226 } |
| 227 | 227 |
| 228 void Generate(MacroAssembler* masm); | 228 void Generate(MacroAssembler* masm); |
| 229 void GenerateGeneric(MacroAssembler* masm); | 229 void GenerateGeneric(MacroAssembler* masm); |
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| 252 void GenerateHeapResultAllocation(MacroAssembler* masm, | 252 void GenerateHeapResultAllocation(MacroAssembler* masm, |
| 253 Register result, | 253 Register result, |
| 254 Register heap_number_map, | 254 Register heap_number_map, |
| 255 Register scratch1, | 255 Register scratch1, |
| 256 Register scratch2, | 256 Register scratch2, |
| 257 Label* gc_required); | 257 Label* gc_required); |
| 258 void GenerateRegisterArgsPush(MacroAssembler* masm); | 258 void GenerateRegisterArgsPush(MacroAssembler* masm); |
| 259 void GenerateTypeTransition(MacroAssembler* masm); | 259 void GenerateTypeTransition(MacroAssembler* masm); |
| 260 void GenerateTypeTransitionWithSavedArgs(MacroAssembler* masm); | 260 void GenerateTypeTransitionWithSavedArgs(MacroAssembler* masm); |
| 261 | 261 |
| 262 virtual int GetCodeKind() { return Code::TYPE_RECORDING_BINARY_OP_IC; } | 262 virtual int GetCodeKind() { return Code::BINARY_OP_IC; } |
| 263 | 263 |
| 264 virtual InlineCacheState GetICState() { | 264 virtual InlineCacheState GetICState() { |
| 265 return TRBinaryOpIC::ToState(operands_type_); | 265 return BinaryOpIC::ToState(operands_type_); |
| 266 } | 266 } |
| 267 | 267 |
| 268 virtual void FinishCode(Code* code) { | 268 virtual void FinishCode(Code* code) { |
| 269 code->set_type_recording_binary_op_type(operands_type_); | 269 code->set_binary_op_type(operands_type_); |
| 270 code->set_type_recording_binary_op_result_type(result_type_); | 270 code->set_binary_op_result_type(result_type_); |
| 271 } | 271 } |
| 272 | 272 |
| 273 friend class CodeGenerator; | 273 friend class CodeGenerator; |
| 274 }; | 274 }; |
| 275 | 275 |
| 276 | 276 |
| 277 // Flag that indicates how to generate code for the stub StringAddStub. | 277 // Flag that indicates how to generate code for the stub StringAddStub. |
| 278 enum StringAddFlags { | 278 enum StringAddFlags { |
| 279 NO_STRING_ADD_FLAGS = 0, | 279 NO_STRING_ADD_FLAGS = 0, |
| 280 // Omit left string check in stub (left is definitely a string). | 280 // Omit left string check in stub (left is definitely a string). |
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| 664 | 664 |
| 665 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; | 665 class LookupModeBits: public BitField<LookupMode, 0, 1> {}; |
| 666 | 666 |
| 667 LookupMode mode_; | 667 LookupMode mode_; |
| 668 }; | 668 }; |
| 669 | 669 |
| 670 | 670 |
| 671 } } // namespace v8::internal | 671 } } // namespace v8::internal |
| 672 | 672 |
| 673 #endif // V8_ARM_CODE_STUBS_ARM_H_ | 673 #endif // V8_ARM_CODE_STUBS_ARM_H_ |
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