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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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970 const char* GetName() { return "NumberToStringStub"; } | 970 const char* GetName() { return "NumberToStringStub"; } |
971 | 971 |
972 #ifdef DEBUG | 972 #ifdef DEBUG |
973 void Print() { | 973 void Print() { |
974 PrintF("NumberToStringStub\n"); | 974 PrintF("NumberToStringStub\n"); |
975 } | 975 } |
976 #endif | 976 #endif |
977 }; | 977 }; |
978 | 978 |
979 | 979 |
| 980 class RecordWriteStub : public CodeStub { |
| 981 public: |
| 982 RecordWriteStub(Register object, Register addr, Register scratch) |
| 983 : object_(object), addr_(addr), scratch_(scratch) { } |
| 984 |
| 985 void Generate(MacroAssembler* masm); |
| 986 |
| 987 private: |
| 988 Register object_; |
| 989 Register addr_; |
| 990 Register scratch_; |
| 991 |
| 992 #ifdef DEBUG |
| 993 void Print() { |
| 994 PrintF("RecordWriteStub (object reg %d), (addr reg %d), (scratch reg %d)\n", |
| 995 object_.code(), addr_.code(), scratch_.code()); |
| 996 } |
| 997 #endif |
| 998 |
| 999 // Minor key encoding in 12 bits of three registers (object, address and |
| 1000 // scratch) OOOOAAAASSSS. |
| 1001 class ScratchBits: public BitField<uint32_t, 0, 4> {}; |
| 1002 class AddressBits: public BitField<uint32_t, 4, 4> {}; |
| 1003 class ObjectBits: public BitField<uint32_t, 8, 4> {}; |
| 1004 |
| 1005 Major MajorKey() { return RecordWrite; } |
| 1006 |
| 1007 int MinorKey() { |
| 1008 // Encode the registers. |
| 1009 return ObjectBits::encode(object_.code()) | |
| 1010 AddressBits::encode(addr_.code()) | |
| 1011 ScratchBits::encode(scratch_.code()); |
| 1012 } |
| 1013 }; |
| 1014 |
| 1015 |
980 } } // namespace v8::internal | 1016 } } // namespace v8::internal |
981 | 1017 |
982 #endif // V8_IA32_CODEGEN_IA32_H_ | 1018 #endif // V8_IA32_CODEGEN_IA32_H_ |
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