llvm/llvm/lib/Target/LoongArch/LoongArchInstrInfo.h

//=- LoongArchInstrInfo.h - LoongArch Instruction Information ---*- 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 contains the LoongArch implementation of the TargetInstrInfo class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHINSTRINFO_H
#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHINSTRINFO_H

#include "LoongArchRegisterInfo.h"
#include "llvm/CodeGen/TargetInstrInfo.h"

#define GET_INSTRINFO_HEADER
#include "LoongArchGenInstrInfo.inc"

namespace llvm {

class LoongArchSubtarget;

class LoongArchInstrInfo : public LoongArchGenInstrInfo { … };

namespace LoongArch {

// Returns true if this is the sext.w pattern, addi.w rd, rs, 0.
bool isSEXT_W(const MachineInstr &MI);

// Mask assignments for floating-point.
static constexpr unsigned FClassMaskSignalingNaN = …;
static constexpr unsigned FClassMaskQuietNaN = …;
static constexpr unsigned FClassMaskNegativeInfinity = …;
static constexpr unsigned FClassMaskNegativeNormal = …;
static constexpr unsigned FClassMaskNegativeSubnormal = …;
static constexpr unsigned FClassMaskNegativeZero = …;
static constexpr unsigned FClassMaskPositiveInfinity = …;
static constexpr unsigned FClassMaskPositiveNormal = …;
static constexpr unsigned FClassMaskPositiveSubnormal = …;
static constexpr unsigned FClassMaskPositiveZero = …;
} // namespace LoongArch

} // end namespace llvm
#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHINSTRINFO_H