chromium/v8/src/compiler/turboshaft/instruction-selection-normalization-reducer.h

// Copyright 2024 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_TURBOSHAFT_INSTRUCTION_SELECTION_NORMALIZATION_REDUCER_H_
#define V8_COMPILER_TURBOSHAFT_INSTRUCTION_SELECTION_NORMALIZATION_REDUCER_H_

#include "src/base/bits.h"
#include "src/compiler/turboshaft/assembler.h"
#include "src/compiler/turboshaft/copying-phase.h"
#include "src/compiler/turboshaft/index.h"
#include "src/compiler/turboshaft/operations.h"
#include "src/compiler/turboshaft/representations.h"

namespace v8::internal::compiler::turboshaft {

// InstructionSelectionNormalizationReducer performs some normalization of the
// graph in order to simplify Instruction Selection. It should run only once,
// right before Instruction Selection. The normalizations currently performed
// are:
//
//  * Making sure that Constants are on the right-hand side of commutative
//    binary operations.
//
//  * Replacing multiplications by small powers of 2 with shifts.

#include "src/compiler/turboshaft/define-assembler-macros.inc"

template <typename Next>
class InstructionSelectionNormalizationReducer : public Next { … };

#include "src/compiler/turboshaft/undef-assembler-macros.inc"

}  // namespace v8::internal::compiler::turboshaft

#endif  // V8_COMPILER_TURBOSHAFT_INSTRUCTION_SELECTION_NORMALIZATION_REDUCER_H_