// Copyright 2021 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. #if !V8_ENABLE_WEBASSEMBLY #error This header should only be included if WebAssembly is enabled. #endif // !V8_ENABLE_WEBASSEMBLY #ifndef V8_COMPILER_WASM_ESCAPE_ANALYSIS_H_ #define V8_COMPILER_WASM_ESCAPE_ANALYSIS_H_ #include "src/compiler/graph-reducer.h" namespace v8 { namespace internal { namespace compiler { class MachineGraph; // Eliminate allocated objects which are only assigned to. // Current restrictions: Does not work for arrays (until they are also allocated // with AllocateRaw). Does not work if the allocated object is passed to a phi. class WasmEscapeAnalysis final : public AdvancedReducer { public: WasmEscapeAnalysis(Editor* editor, MachineGraph* mcgraph) : AdvancedReducer(editor), mcgraph_(mcgraph) {} const char* reducer_name() const override { return "WasmEscapeAnalysis"; } Reduction Reduce(Node* node) final; private: Reduction ReduceAllocateRaw(Node* call); MachineGraph* const mcgraph_; }; } // namespace compiler } // namespace internal } // namespace v8 #endif // V8_COMPILER_WASM_ESCAPE_ANALYSIS_H_