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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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1050 const char* GetName() { return "NumberToStringStub"; } | 1050 const char* GetName() { return "NumberToStringStub"; } |
1051 | 1051 |
1052 #ifdef DEBUG | 1052 #ifdef DEBUG |
1053 void Print() { | 1053 void Print() { |
1054 PrintF("NumberToStringStub\n"); | 1054 PrintF("NumberToStringStub\n"); |
1055 } | 1055 } |
1056 #endif | 1056 #endif |
1057 }; | 1057 }; |
1058 | 1058 |
1059 | 1059 |
1060 class RecordWriteStub : public CodeStub { | |
1061 public: | |
1062 RecordWriteStub(Register object, Register addr, Register scratch) | |
1063 : object_(object), addr_(addr), scratch_(scratch) { } | |
1064 | |
1065 void Generate(MacroAssembler* masm); | |
1066 | |
1067 private: | |
1068 Register object_; | |
1069 Register addr_; | |
1070 Register scratch_; | |
1071 | |
1072 #ifdef DEBUG | |
1073 void Print() { | |
1074 PrintF("RecordWriteStub (object reg %d), (addr reg %d), (scratch reg %d)\n", | |
1075 object_.code(), addr_.code(), scratch_.code()); | |
1076 } | |
1077 #endif | |
1078 | |
1079 // Minor key encoding in 12 bits. 4 bits for each of the three | |
1080 // registers (object, address and scratch) OOOOAAAASSSS. | |
1081 class ScratchBits: public BitField<uint32_t, 0, 4> {}; | |
1082 class AddressBits: public BitField<uint32_t, 4, 4> {}; | |
1083 class ObjectBits: public BitField<uint32_t, 8, 4> {}; | |
1084 | |
1085 Major MajorKey() { return RecordWrite; } | |
1086 | |
1087 int MinorKey() { | |
1088 // Encode the registers. | |
1089 return ObjectBits::encode(object_.code()) | | |
1090 AddressBits::encode(addr_.code()) | | |
1091 ScratchBits::encode(scratch_.code()); | |
1092 } | |
1093 }; | |
1094 | |
1095 | |
1096 } } // namespace v8::internal | 1060 } } // namespace v8::internal |
1097 | 1061 |
1098 #endif // V8_IA32_CODEGEN_IA32_H_ | 1062 #endif // V8_IA32_CODEGEN_IA32_H_ |
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