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//===- LoongArchSubtarget.h - Define Subtarget for the LoongArch -*- 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 declares the LoongArch specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHSUBTARGET_H
#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHSUBTARGET_H
#include "LoongArchFrameLowering.h"
#include "LoongArchISelLowering.h"
#include "LoongArchInstrInfo.h"
#include "LoongArchRegisterInfo.h"
#include "MCTargetDesc/LoongArchBaseInfo.h"
#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/Target/TargetMachine.h"
#define GET_SUBTARGETINFO_HEADER
#include "LoongArchGenSubtargetInfo.inc"
namespace llvm {
class StringRef;
class LoongArchSubtarget : public LoongArchGenSubtargetInfo {
virtual void anchor();
#define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \
bool ATTRIBUTE = DEFAULT;
#include "LoongArchGenSubtargetInfo.inc"
unsigned GRLen = 32;
// TODO: The default value is empirical and conservative. Override the
// default in initializeProperties once we support optimizing for more
// uarches.
uint8_t MaxInterleaveFactor = 2;
MVT GRLenVT = MVT::i32;
LoongArchABI::ABI TargetABI = LoongArchABI::ABI_Unknown;
LoongArchFrameLowering FrameLowering;
LoongArchInstrInfo InstrInfo;
LoongArchRegisterInfo RegInfo;
LoongArchTargetLowering TLInfo;
SelectionDAGTargetInfo TSInfo;
Align PrefFunctionAlignment;
Align PrefLoopAlignment;
unsigned MaxBytesForAlignment;
/// Initializes using the passed in CPU and feature strings so that we can
/// use initializer lists for subtarget initialization.
LoongArchSubtarget &initializeSubtargetDependencies(const Triple &TT,
StringRef CPU,
StringRef TuneCPU,
StringRef FS,
StringRef ABIName);
/// Initialize properties based on the selected processor family.
void initializeProperties(StringRef TuneCPU);
public:
// Initializes the data members to match that of the specified triple.
LoongArchSubtarget(const Triple &TT, StringRef CPU, StringRef TuneCPU,
StringRef FS, StringRef ABIName, const TargetMachine &TM);
// Parses features string setting specified subtarget options. The
// definition of this function is auto-generated by tblgen.
void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
const LoongArchFrameLowering *getFrameLowering() const override {
return &FrameLowering;
}
const LoongArchInstrInfo *getInstrInfo() const override { return &InstrInfo; }
const LoongArchRegisterInfo *getRegisterInfo() const override {
return &RegInfo;
}
const LoongArchTargetLowering *getTargetLowering() const override {
return &TLInfo;
}
const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
return &TSInfo;
}
#define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \
bool GETTER() const { return ATTRIBUTE; }
#include "LoongArchGenSubtargetInfo.inc"
bool is64Bit() const { return HasLA64; }
MVT getGRLenVT() const { return GRLenVT; }
unsigned getGRLen() const { return GRLen; }
LoongArchABI::ABI getTargetABI() const { return TargetABI; }
bool isSoftFPABI() const {
return TargetABI == LoongArchABI::ABI_LP64S ||
TargetABI == LoongArchABI::ABI_ILP32S;
}
bool isXRaySupported() const override { return is64Bit(); }
Align getPrefFunctionAlignment() const { return PrefFunctionAlignment; }
Align getPrefLoopAlignment() const { return PrefLoopAlignment; }
unsigned getMaxBytesForAlignment() const { return MaxBytesForAlignment; }
unsigned getMaxInterleaveFactor() const { return MaxInterleaveFactor; }
bool enableMachineScheduler() const override { return true; }
bool useAA() const override;
};
} // end namespace llvm
#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHSUBTARGET_H
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