llvm/llvm/include/llvm/CodeGen/GlobalISel/Legalizer.h

//== llvm/CodeGen/GlobalISel/Legalizer.h ---------------- -*- 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
//
//===----------------------------------------------------------------------===//
//
/// \file A pass to convert the target-illegal operations created by IR -> MIR
/// translation into ones the target expects to be able to select. This may
/// occur in multiple phases, for example G_ADD <2 x i8> -> G_ADD <2 x i16> ->
/// G_ADD <4 x i16>.
///
/// The LegalizeHelper class is where most of the work happens, and is designed
/// to be callable from other passes that find themselves with an illegal
/// instruction.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_CODEGEN_GLOBALISEL_LEGALIZER_H
#define LLVM_CODEGEN_GLOBALISEL_LEGALIZER_H

#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/CodeGen/GlobalISel/GISelKnownBits.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"

namespace llvm {

class LegalizerInfo;
class MachineIRBuilder;
class MachineInstr;
class GISelChangeObserver;
class LostDebugLocObserver;

class Legalizer : public MachineFunctionPass { … };
} // End namespace llvm.

#endif