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Issue 184923002: Clear optimized code cache in shared function info when code gets deoptimized (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix assert Created 6 years, 9 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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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63 63
64 DeoptimizationInputData* data = 64 DeoptimizationInputData* data =
65 DeoptimizationInputData::cast(code->deoptimization_data()); 65 DeoptimizationInputData::cast(code->deoptimization_data());
66 int osr_offset = data->OsrPcOffset()->value(); 66 int osr_offset = data->OsrPcOffset()->value();
67 if (osr_offset > 0) { 67 if (osr_offset > 0) {
68 CodePatcher osr_patcher(code->instruction_start() + osr_offset, 1); 68 CodePatcher osr_patcher(code->instruction_start() + osr_offset, 1);
69 osr_patcher.masm()->bkpt(0); 69 osr_patcher.masm()->bkpt(0);
70 } 70 }
71 } 71 }
72 72
73 // For each LLazyBailout instruction insert a call to the corresponding
74 // deoptimization entry.
75 DeoptimizationInputData* deopt_data = 73 DeoptimizationInputData* deopt_data =
76 DeoptimizationInputData::cast(code->deoptimization_data()); 74 DeoptimizationInputData::cast(code->deoptimization_data());
75 SharedFunctionInfo* shared =
76 SharedFunctionInfo::cast(deopt_data->SharedFunctionInfo());
77 shared->EvictFromOptimizedCodeMap(code, "deoptimized code");
77 #ifdef DEBUG 78 #ifdef DEBUG
78 Address prev_call_address = NULL; 79 Address prev_call_address = NULL;
79 #endif 80 #endif
81 // For each LLazyBailout instruction insert a call to the corresponding
82 // deoptimization entry.
80 for (int i = 0; i < deopt_data->DeoptCount(); i++) { 83 for (int i = 0; i < deopt_data->DeoptCount(); i++) {
81 if (deopt_data->Pc(i)->value() == -1) continue; 84 if (deopt_data->Pc(i)->value() == -1) continue;
82 Address call_address = code_start_address + deopt_data->Pc(i)->value(); 85 Address call_address = code_start_address + deopt_data->Pc(i)->value();
83 Address deopt_entry = GetDeoptimizationEntry(isolate, i, LAZY); 86 Address deopt_entry = GetDeoptimizationEntry(isolate, i, LAZY);
84 // We need calls to have a predictable size in the unoptimized code, but 87 // We need calls to have a predictable size in the unoptimized code, but
85 // this is optimized code, so we don't have to have a predictable size. 88 // this is optimized code, so we don't have to have a predictable size.
86 int call_size_in_bytes = 89 int call_size_in_bytes =
87 MacroAssembler::CallSizeNotPredictableCodeSize(deopt_entry, 90 MacroAssembler::CallSizeNotPredictableCodeSize(deopt_entry,
88 RelocInfo::NONE32); 91 RelocInfo::NONE32);
89 int call_size_in_words = call_size_in_bytes / Assembler::kInstrSize; 92 int call_size_in_words = call_size_in_bytes / Assembler::kInstrSize;
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366 369
367 370
368 void FrameDescription::SetCallerFp(unsigned offset, intptr_t value) { 371 void FrameDescription::SetCallerFp(unsigned offset, intptr_t value) {
369 SetFrameSlot(offset, value); 372 SetFrameSlot(offset, value);
370 } 373 }
371 374
372 375
373 #undef __ 376 #undef __
374 377
375 } } // namespace v8::internal 378 } } // namespace v8::internal
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