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| 1 | 1 |
| 2 // Copyright 2011 the V8 project authors. All rights reserved. | 2 // Copyright 2011 the V8 project authors. All rights reserved. |
| 3 // Redistribution and use in source and binary forms, with or without | 3 // Redistribution and use in source and binary forms, with or without |
| 4 // modification, are permitted provided that the following conditions are | 4 // modification, are permitted provided that the following conditions are |
| 5 // met: | 5 // met: |
| 6 // | 6 // |
| 7 // * Redistributions of source code must retain the above copyright | 7 // * Redistributions of source code must retain the above copyright |
| 8 // notice, this list of conditions and the following disclaimer. | 8 // notice, this list of conditions and the following disclaimer. |
| 9 // * Redistributions in binary form must reproduce the above | 9 // * Redistributions in binary form must reproduce the above |
| 10 // copyright notice, this list of conditions and the following | 10 // copyright notice, this list of conditions and the following |
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| 46 void Deoptimizer::PatchCodeForDeoptimization(Isolate* isolate, Code* code) { | 46 void Deoptimizer::PatchCodeForDeoptimization(Isolate* isolate, Code* code) { |
| 47 Address code_start_address = code->instruction_start(); | 47 Address code_start_address = code->instruction_start(); |
| 48 // Invalidate the relocation information, as it will become invalid by the | 48 // Invalidate the relocation information, as it will become invalid by the |
| 49 // code patching below, and is not needed any more. | 49 // code patching below, and is not needed any more. |
| 50 code->InvalidateRelocation(); | 50 code->InvalidateRelocation(); |
| 51 | 51 |
| 52 if (FLAG_zap_code_space) { | 52 if (FLAG_zap_code_space) { |
| 53 // Fail hard and early if we enter this code object again. | 53 // Fail hard and early if we enter this code object again. |
| 54 byte* pointer = code->FindCodeAgeSequence(); | 54 byte* pointer = code->FindCodeAgeSequence(); |
| 55 if (pointer != NULL) { | 55 if (pointer != NULL) { |
| 56 pointer += kNoCodeAgeSequenceLength; | 56 pointer += kNoCodeAgeSequenceLength * Assembler::kInstrSize; |
| 57 } else { | 57 } else { |
| 58 pointer = code->instruction_start(); | 58 pointer = code->instruction_start(); |
| 59 } | 59 } |
| 60 CodePatcher patcher(pointer, 1); | 60 CodePatcher patcher(pointer, 1); |
| 61 patcher.masm()->break_(0xCC); | 61 patcher.masm()->break_(0xCC); |
| 62 | 62 |
| 63 DeoptimizationInputData* data = | 63 DeoptimizationInputData* data = |
| 64 DeoptimizationInputData::cast(code->deoptimization_data()); | 64 DeoptimizationInputData::cast(code->deoptimization_data()); |
| 65 int osr_offset = data->OsrPcOffset()->value(); | 65 int osr_offset = data->OsrPcOffset()->value(); |
| 66 if (osr_offset > 0) { | 66 if (osr_offset > 0) { |
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| 388 | 388 |
| 389 void FrameDescription::SetCallerFp(unsigned offset, intptr_t value) { | 389 void FrameDescription::SetCallerFp(unsigned offset, intptr_t value) { |
| 390 SetFrameSlot(offset, value); | 390 SetFrameSlot(offset, value); |
| 391 } | 391 } |
| 392 | 392 |
| 393 | 393 |
| 394 #undef __ | 394 #undef __ |
| 395 | 395 |
| 396 | 396 |
| 397 } } // namespace v8::internal | 397 } } // namespace v8::internal |
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