llvm/llvm/include/llvm/Analysis/InstSimplifyFolder.h

//===- InstSimplifyFolder.h - InstSimplify folding helper --------*- C++-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the InstSimplifyFolder class, a helper for IRBuilder.
// It provides IRBuilder with a set of methods for folding operations to
// existing values using InstructionSimplify. At the moment, only a subset of
// the implementation uses InstructionSimplify. The rest of the implementation
// only folds constants.
//
// The folder also applies target-specific constant folding.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_ANALYSIS_INSTSIMPLIFYFOLDER_H
#define LLVM_ANALYSIS_INSTSIMPLIFYFOLDER_H

#include "llvm/ADT/ArrayRef.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Analysis/TargetFolder.h"
#include "llvm/IR/IRBuilderFolder.h"
#include "llvm/IR/Instruction.h"

namespace llvm {
class Constant;

/// InstSimplifyFolder - Use InstructionSimplify to fold operations to existing
/// values. Also applies target-specific constant folding when not using
/// InstructionSimplify.
class InstSimplifyFolder final : public IRBuilderFolder { … };

} // end namespace llvm

#endif // LLVM_ANALYSIS_INSTSIMPLIFYFOLDER_H