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9a1cd05a3d
No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203103 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
//===-- SystemZRegisterInfo.h - SystemZ register information ----*- 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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#ifndef SystemZREGISTERINFO_H
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#define SystemZREGISTERINFO_H
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#include "SystemZ.h"
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#include "llvm/Target/TargetRegisterInfo.h"
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#define GET_REGINFO_HEADER
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#include "SystemZGenRegisterInfo.inc"
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namespace llvm {
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namespace SystemZ {
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// Return the subreg to use for referring to the even and odd registers
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// in a GR128 pair. Is32Bit says whether we want a GR32 or GR64.
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inline unsigned even128(bool Is32bit) {
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return Is32bit ? subreg_hl32 : subreg_h64;
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}
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inline unsigned odd128(bool Is32bit) {
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return Is32bit ? subreg_l32 : subreg_l64;
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}
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} // end namespace SystemZ
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class SystemZSubtarget;
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class SystemZInstrInfo;
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struct SystemZRegisterInfo : public SystemZGenRegisterInfo {
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private:
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SystemZTargetMachine &TM;
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public:
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SystemZRegisterInfo(SystemZTargetMachine &tm);
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// Override TargetRegisterInfo.h.
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virtual bool
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requiresRegisterScavenging(const MachineFunction &MF) const override {
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return true;
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}
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virtual bool
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requiresFrameIndexScavenging(const MachineFunction &MF) const override {
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return true;
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}
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virtual bool
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trackLivenessAfterRegAlloc(const MachineFunction &MF) const override {
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return true;
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}
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virtual const uint16_t *
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getCalleeSavedRegs(const MachineFunction *MF = 0) const override;
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virtual BitVector getReservedRegs(const MachineFunction &MF) const override;
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virtual void eliminateFrameIndex(MachineBasicBlock::iterator MI,
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int SPAdj, unsigned FIOperandNum,
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RegScavenger *RS) const override;
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virtual unsigned getFrameRegister(const MachineFunction &MF) const override;
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};
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} // end namespace llvm
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#endif
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