wasm-escape-analysis.h

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// 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.
 
#ifndef V8_COMPILER_WASM_ESCAPE_ANALYSIS_H_
#define V8_COMPILER_WASM_ESCAPE_ANALYSIS_H_
 
#if !V8_ENABLE_WEBASSEMBLY
#error This header should only be included if WebAssembly is enabled.
#endif  // !V8_ENABLE_WEBASSEMBLY
 
#include "src/compiler/graph-reducer.h"
 
namespace v8 {
namespace internal {
namespace compiler {
 
class MachineGraph;
 
// Eliminate allocated objects with no uses other than as store targets.
// Future work: Also exclude phis and renamings from uses.
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_