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Side by Side Diff: src/deoptimizer.h

Issue 2534143002: [deoptimizer] Fix deoptimization in {TranslatedState}. (Closed)
Patch Set: Created 4 years 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 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef V8_DEOPTIMIZER_H_ 5 #ifndef V8_DEOPTIMIZER_H_
6 #define V8_DEOPTIMIZER_H_ 6 #define V8_DEOPTIMIZER_H_
7 7
8 #include "src/allocation.h" 8 #include "src/allocation.h"
9 #include "src/deoptimize-reason.h" 9 #include "src/deoptimize-reason.h"
10 #include "src/macro-assembler.h" 10 #include "src/macro-assembler.h"
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247 // the values eagerly. 247 // the values eagerly.
248 248
249 class TranslatedState { 249 class TranslatedState {
250 public: 250 public:
251 TranslatedState(); 251 TranslatedState();
252 explicit TranslatedState(JavaScriptFrame* frame); 252 explicit TranslatedState(JavaScriptFrame* frame);
253 253
254 void Prepare(bool has_adapted_arguments, Address stack_frame_pointer); 254 void Prepare(bool has_adapted_arguments, Address stack_frame_pointer);
255 255
256 // Store newly materialized values into the isolate. 256 // Store newly materialized values into the isolate.
257 void StoreMaterializedValuesAndDeopt(); 257 void StoreMaterializedValuesAndDeopt(JavaScriptFrame* frame);
258 258
259 typedef std::vector<TranslatedFrame>::iterator iterator; 259 typedef std::vector<TranslatedFrame>::iterator iterator;
260 iterator begin() { return frames_.begin(); } 260 iterator begin() { return frames_.begin(); }
261 iterator end() { return frames_.end(); } 261 iterator end() { return frames_.end(); }
262 262
263 typedef std::vector<TranslatedFrame>::const_iterator const_iterator; 263 typedef std::vector<TranslatedFrame>::const_iterator const_iterator;
264 const_iterator begin() const { return frames_.begin(); } 264 const_iterator begin() const { return frames_.begin(); }
265 const_iterator end() const { return frames_.end(); } 265 const_iterator end() const { return frames_.end(); }
266 266
267 std::vector<TranslatedFrame>& frames() { return frames_; } 267 std::vector<TranslatedFrame>& frames() { return frames_; }
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412 412
413 // Makes sure that there is enough room in the relocation 413 // Makes sure that there is enough room in the relocation
414 // information of a code object to perform lazy deoptimization 414 // information of a code object to perform lazy deoptimization
415 // patching. If there is not enough room a new relocation 415 // patching. If there is not enough room a new relocation
416 // information object is allocated and comments are added until it 416 // information object is allocated and comments are added until it
417 // is big enough. 417 // is big enough.
418 static void EnsureRelocSpaceForLazyDeoptimization(Handle<Code> code); 418 static void EnsureRelocSpaceForLazyDeoptimization(Handle<Code> code);
419 419
420 // Deoptimize the function now. Its current optimized code will never be run 420 // Deoptimize the function now. Its current optimized code will never be run
421 // again and any activations of the optimized code will get deoptimized when 421 // again and any activations of the optimized code will get deoptimized when
422 // execution returns. 422 // execution returns. If {code} is specified then the given code is targeted
423 static void DeoptimizeFunction(JSFunction* function); 423 // instead of the function code (e.g. OSR code not installed on function).
424 static void DeoptimizeFunction(JSFunction* function, Code* code = nullptr);
424 425
425 // Deoptimize all code in the given isolate. 426 // Deoptimize all code in the given isolate.
426 static void DeoptimizeAll(Isolate* isolate); 427 static void DeoptimizeAll(Isolate* isolate);
427 428
428 // Deoptimizes all optimized code that has been previously marked 429 // Deoptimizes all optimized code that has been previously marked
429 // (via code->set_marked_for_deoptimization) and unlinks all functions that 430 // (via code->set_marked_for_deoptimization) and unlinks all functions that
430 // refer to that code. 431 // refer to that code.
431 static void DeoptimizeMarkedCode(Isolate* isolate); 432 static void DeoptimizeMarkedCode(Isolate* isolate);
432 433
433 // Visit all the known optimized functions in a given isolate. 434 // Visit all the known optimized functions in a given isolate.
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1055 std::vector<Handle<Object> > expression_stack_; 1056 std::vector<Handle<Object> > expression_stack_;
1056 int source_position_; 1057 int source_position_;
1057 1058
1058 friend class Deoptimizer; 1059 friend class Deoptimizer;
1059 }; 1060 };
1060 1061
1061 } // namespace internal 1062 } // namespace internal
1062 } // namespace v8 1063 } // namespace v8
1063 1064
1064 #endif // V8_DEOPTIMIZER_H_ 1065 #endif // V8_DEOPTIMIZER_H_
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