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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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1076 const char* GetName() { return "NumberToStringStub"; } | 1076 const char* GetName() { return "NumberToStringStub"; } |
1077 | 1077 |
1078 #ifdef DEBUG | 1078 #ifdef DEBUG |
1079 void Print() { | 1079 void Print() { |
1080 PrintF("NumberToStringStub\n"); | 1080 PrintF("NumberToStringStub\n"); |
1081 } | 1081 } |
1082 #endif | 1082 #endif |
1083 }; | 1083 }; |
1084 | 1084 |
1085 | 1085 |
1086 class RecordWriteStub : public CodeStub { | |
1087 public: | |
1088 RecordWriteStub(Register object, Register addr, Register scratch) | |
1089 : object_(object), addr_(addr), scratch_(scratch) { } | |
1090 | |
1091 void Generate(MacroAssembler* masm); | |
1092 | |
1093 private: | |
1094 Register object_; | |
1095 Register addr_; | |
1096 Register scratch_; | |
1097 | |
1098 #ifdef DEBUG | |
1099 void Print() { | |
1100 PrintF("RecordWriteStub (object reg %d), (addr reg %d), (scratch reg %d)\n", | |
1101 object_.code(), addr_.code(), scratch_.code()); | |
1102 } | |
1103 #endif | |
1104 | |
1105 // Minor key encoding in 12 bits. 4 bits for each of the three | |
1106 // registers (object, address and scratch) OOOOAAAASSSS. | |
1107 class ScratchBits: public BitField<uint32_t, 0, 4> {}; | |
1108 class AddressBits: public BitField<uint32_t, 4, 4> {}; | |
1109 class ObjectBits: public BitField<uint32_t, 8, 4> {}; | |
1110 | |
1111 Major MajorKey() { return RecordWrite; } | |
1112 | |
1113 int MinorKey() { | |
1114 // Encode the registers. | |
1115 return ObjectBits::encode(object_.code()) | | |
1116 AddressBits::encode(addr_.code()) | | |
1117 ScratchBits::encode(scratch_.code()); | |
1118 } | |
1119 }; | |
1120 | |
1121 | |
1122 } } // namespace v8::internal | 1086 } } // namespace v8::internal |
1123 | 1087 |
1124 #endif // V8_IA32_CODEGEN_IA32_H_ | 1088 #endif // V8_IA32_CODEGEN_IA32_H_ |
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