diff options
Diffstat (limited to 'lib/Target/Sparc/SparcFrameLowering.cpp')
-rw-r--r-- | lib/Target/Sparc/SparcFrameLowering.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/lib/Target/Sparc/SparcFrameLowering.cpp b/lib/Target/Sparc/SparcFrameLowering.cpp index 536e466ca3..1f9cac54b8 100644 --- a/lib/Target/Sparc/SparcFrameLowering.cpp +++ b/lib/Target/Sparc/SparcFrameLowering.cpp @@ -70,6 +70,25 @@ void SparcFrameLowering::emitPrologue(MachineFunction &MF) const { BuildMI(MBB, MBBI, dl, TII.get(SAVErr), SP::O6) .addReg(SP::O6).addReg(SP::G1); } + MachineModuleInfo &MMI = MF.getMMI(); + const MCRegisterInfo *MRI = MMI.getContext().getRegisterInfo(); + MCSymbol *FrameLabel = MMI.getContext().CreateTempSymbol(); + BuildMI(MBB, MBBI, dl, TII.get(SP::PROLOG_LABEL)).addSym(FrameLabel); + + unsigned regFP = MRI->getDwarfRegNum(SP::I6, true); + + // Emit ".cfi_def_cfa_register 30". + MMI.addFrameInst(MCCFIInstruction::createDefCfaRegister(FrameLabel, + regFP)); + // Emit ".cfi_window_save". + MMI.addFrameInst(MCCFIInstruction::createWindowSave(FrameLabel)); + + unsigned regInRA = MRI->getDwarfRegNum(SP::I7, true); + unsigned regOutRA = MRI->getDwarfRegNum(SP::O7, true); + // Emit ".cfi_register 15, 31". + MMI.addFrameInst(MCCFIInstruction::createRegister(FrameLabel, + regOutRA, + regInRA)); } void SparcFrameLowering:: |