diff options
Diffstat (limited to 'llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp b/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp index 397de472a6e..12c4310b78f 100644 --- a/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp +++ b/llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp @@ -394,7 +394,10 @@ void SystemZFrameLowering::emitPrologue(MachineFunction &MF, // Add CFI for the this save. unsigned DwarfReg = MRI->getDwarfRegNum(Reg, true); - int64_t Offset = getFrameIndexOffset(MF, Save.getFrameIdx()); + unsigned IgnoredFrameReg; + int64_t Offset = + getFrameIndexReference(MF, Save.getFrameIdx(), IgnoredFrameReg); + unsigned CFIIndex = MMI.addFrameInst(MCCFIInstruction::createOffset( nullptr, DwarfReg, SPOffsetFromCFA + Offset)); CFIIndexes.push_back(CFIIndex); @@ -455,9 +458,14 @@ bool SystemZFrameLowering::hasFP(const MachineFunction &MF) const { MF.getInfo<SystemZMachineFunctionInfo>()->getManipulatesSP()); } -int SystemZFrameLowering::getFrameIndexOffset(const MachineFunction &MF, - int FI) const { +int SystemZFrameLowering::getFrameIndexReference(const MachineFunction &MF, + int FI, + unsigned &FrameReg) const { const MachineFrameInfo *MFFrame = MF.getFrameInfo(); + const TargetRegisterInfo *RI = MF.getSubtarget().getRegisterInfo(); + + // Fill in FrameReg output argument. + FrameReg = RI->getFrameRegister(MF); // Start with the offset of FI from the top of the caller-allocated frame // (i.e. the top of the 160 bytes allocated by the caller). This initial |
