105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
//===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the SPARC specific subclass of TargetSubtargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
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#define LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
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#include "MCTargetDesc/SparcMCTargetDesc.h"
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#include "SparcFrameLowering.h"
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#include "SparcISelLowering.h"
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#include "SparcInstrInfo.h"
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#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
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#include "llvm/CodeGen/TargetSubtargetInfo.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/TargetParser/Triple.h"
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#include <string>
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#define GET_SUBTARGETINFO_HEADER
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#include "SparcGenSubtargetInfo.inc"
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namespace llvm {
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class StringRef;
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class SparcSubtarget : public SparcGenSubtargetInfo {
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// ReserveRegister[i] - Register #i is not available as a general purpose
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// register.
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BitVector ReserveRegister;
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Triple TargetTriple;
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virtual void anchor();
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bool Is64Bit;
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#define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \
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bool ATTRIBUTE = DEFAULT;
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#include "SparcGenSubtargetInfo.inc"
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SparcInstrInfo InstrInfo;
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SparcTargetLowering TLInfo;
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SelectionDAGTargetInfo TSInfo;
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SparcFrameLowering FrameLowering;
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public:
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SparcSubtarget(const StringRef &CPU, const StringRef &TuneCPU,
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const StringRef &FS, const TargetMachine &TM, bool is64bit);
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const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; }
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const TargetFrameLowering *getFrameLowering() const override {
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return &FrameLowering;
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}
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const SparcRegisterInfo *getRegisterInfo() const override {
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return &InstrInfo.getRegisterInfo();
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}
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const SparcTargetLowering *getTargetLowering() const override {
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return &TLInfo;
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}
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const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
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return &TSInfo;
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}
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bool enableMachineScheduler() const override;
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#define GET_SUBTARGETINFO_MACRO(ATTRIBUTE, DEFAULT, GETTER) \
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bool GETTER() const { return ATTRIBUTE; }
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#include "SparcGenSubtargetInfo.inc"
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/// ParseSubtargetFeatures - Parses features string setting specified
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/// subtarget options. Definition of function is auto generated by tblgen.
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void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
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SparcSubtarget &initializeSubtargetDependencies(StringRef CPU,
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StringRef TuneCPU,
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StringRef FS);
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bool is64Bit() const { return Is64Bit; }
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/// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
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/// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
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int64_t getStackPointerBias() const {
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return is64Bit() ? 2047 : 0;
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}
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bool isRegisterReserved(MCPhysReg PhysReg) const {
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return ReserveRegister[PhysReg];
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}
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/// Given a actual stack size as determined by FrameInfo, this function
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/// returns adjusted framesize which includes space for register window
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/// spills and arguments.
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int getAdjustedFrameSize(int stackSize) const;
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bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
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};
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} // end namespace llvm
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#endif
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