diff options
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp index c695bb3dad1..8ce6d6ab448 100644 --- a/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp +++ b/llvm/lib/Target/SystemZ/SystemZRegisterInfo.cpp @@ -53,32 +53,6 @@ SystemZRegisterInfo::getReservedRegs(const MachineFunction &MF) const { return Reserved; } -bool -SystemZRegisterInfo::saveScavengerRegister(MachineBasicBlock &MBB, - MachineBasicBlock::iterator SaveMBBI, - MachineBasicBlock::iterator &UseMBBI, - const TargetRegisterClass *RC, - unsigned Reg) const { - MachineFunction &MF = *MBB.getParent(); - const SystemZInstrInfo &TII = - *static_cast<const SystemZInstrInfo*>(TM.getInstrInfo()); - const SystemZFrameLowering *TFI = - static_cast<const SystemZFrameLowering *>(TM.getFrameLowering()); - unsigned Base = getFrameRegister(MF); - uint64_t Offset = TFI->getEmergencySpillSlotOffset(MF); - DebugLoc DL; - - unsigned LoadOpcode, StoreOpcode; - TII.getLoadStoreOpcodes(RC, LoadOpcode, StoreOpcode); - - // The offset must always be in range of a 12-bit unsigned displacement. - BuildMI(MBB, SaveMBBI, DL, TII.get(StoreOpcode)) - .addReg(Reg, RegState::Kill).addReg(Base).addImm(Offset).addReg(0); - BuildMI(MBB, UseMBBI, DL, TII.get(LoadOpcode), Reg) - .addReg(Base).addImm(Offset).addReg(0); - return true; -} - void SystemZRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj, unsigned FIOperandNum, |
