mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-24 23:29:41 +00:00
700ed80d3d
to TargetFrameLowering, where it belongs. Incidentally, this allows us to delete some duplicated (and slightly different!) code in TRI. There are potentially other layering problems that can be cleaned up as a result, or in a similar manner. The refactoring was OK'd by Anton Korobeynikov on llvmdev. Note: this touches the target interfaces, so out-of-tree targets may be affected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175788 91177308-0d34-0410-b5e6-96231b3b80d8
77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
//==- AArch64RegisterInfo.h - AArch64 Register Information Impl -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the AArch64 implementation of the MCRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TARGET_AARCH64REGISTERINFO_H
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#define LLVM_TARGET_AARCH64REGISTERINFO_H
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#include "llvm/Target/TargetRegisterInfo.h"
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#define GET_REGINFO_HEADER
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#include "AArch64GenRegisterInfo.inc"
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namespace llvm {
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class AArch64InstrInfo;
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class AArch64Subtarget;
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struct AArch64RegisterInfo : public AArch64GenRegisterInfo {
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private:
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const AArch64InstrInfo &TII;
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public:
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AArch64RegisterInfo(const AArch64InstrInfo &tii,
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const AArch64Subtarget &sti);
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const uint16_t *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
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const uint32_t *getCallPreservedMask(CallingConv::ID) const;
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const uint32_t *getTLSDescCallPreservedMask() const;
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BitVector getReservedRegs(const MachineFunction &MF) const;
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unsigned getFrameRegister(const MachineFunction &MF) const;
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void eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
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unsigned FIOperandNum,
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RegScavenger *Rs = NULL) const;
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/// getCrossCopyRegClass - Returns a legal register class to copy a register
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/// in the specified class to or from. Returns original class if it is
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/// possible to copy between a two registers of the specified class.
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const TargetRegisterClass *
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getCrossCopyRegClass(const TargetRegisterClass *RC) const;
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/// getLargestLegalSuperClass - Returns the largest super class of RC that is
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/// legal to use in the current sub-target and has the same spill size.
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const TargetRegisterClass*
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getLargestLegalSuperClass(const TargetRegisterClass *RC) const {
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if (RC == &AArch64::tcGPR64RegClass)
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return &AArch64::GPR64RegClass;
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return RC;
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}
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bool requiresRegisterScavenging(const MachineFunction &MF) const {
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return true;
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}
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bool requiresFrameIndexScavenging(const MachineFunction &MF) const {
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return true;
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}
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bool useFPForScavengingIndex(const MachineFunction &MF) const;
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};
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} // end namespace llvm
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#endif // LLVM_TARGET_AARCH64REGISTERINFO_H
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