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// Copyright 2023 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_JS_LOWERING_H_
#define V8_COMPILER_WASM_JS_LOWERING_H_
#include "src/compiler/graph-reducer.h"
#include "src/compiler/wasm-compiler-definitions.h"
#include "src/compiler/wasm-graph-assembler.h"
namespace v8::internal::compiler {
class SourcePositionTable;
// This reducer is part of the JavaScript pipeline and contains lowering of
// wasm nodes (from inlined wasm functions).
//
// The reducer replaces all TrapIf / TrapUnless nodes with a conditional goto to
// deferred code containing a call to the trap builtin.
class WasmJSLowering final : public AdvancedReducer {
public:
WasmJSLowering(Editor* editor, MachineGraph* mcgraph,
SourcePositionTable* source_position_table);
const char* reducer_name() const override { return "WasmJSLowering"; }
Reduction Reduce(Node* node) final;
private:
WasmGraphAssembler gasm_;
const MachineGraph* mcgraph_;
SourcePositionTable* source_position_table_;
};
} // namespace v8::internal::compiler
#endif // V8_COMPILER_WASM_JS_LOWERING_H_
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