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// Copyright 2019 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef V8_CODEGEN_PENDING_OPTIMIZATION_TABLE_H_ #define V8_CODEGEN_PENDING_OPTIMIZATION_TABLE_H_ #include "src/common/globals.h" namespace v8 { namespace internal { // This class adds the functionality to properly test the optimized code. This // is only for use in tests. All these functions should only be called when // testing_d8_flag_for_tests is set. class PendingOptimizationTable { public: // This function should be called before we mark the function for // optimization. Calling this function ensures that |function| is compiled and // has a feedback vector allocated. This also holds on to the bytecode // strongly in pending optimization table preventing the bytecode to be // flushed. static void PreparedForOptimization(Isolate* isolate, Handle<JSFunction> function, bool allow_heuristic_optimization); // This function should be called when the function is marked for optimization // via the intrinsics. This will update the state of the bytecode array in the // pending optimization table, so that the entry can be removed once the // function is optimized. If the function is already optimized it removes the // entry from the table. static void MarkedForOptimization(Isolate* isolate, Handle<JSFunction> function); // This function should be called once the function is optimized. If there is // an entry in the pending optimization table and it is marked for removal // then this function removes the entry from pending optimization table. static void FunctionWasOptimized(Isolate* isolate, Handle<JSFunction> function); // This function returns whether a heuristic is allowed to trigger // optimization the function. This mechanism is used in tests to prevent // heuristics from interfering with manually triggered optimization. static bool IsHeuristicOptimizationAllowed(Isolate* isolate, JSFunction function); }; } // namespace internal } // namespace v8 #endif // V8_CODEGEN_PENDING_OPTIMIZATION_TABLE_H_