diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64FrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64FrameLowering.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp index 681024918a3..0b92249580c 100644 --- a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp +++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp @@ -991,6 +991,7 @@ bool AArch64FrameLowering::spillCalleeSavedRegisters( SmallVector<RegPairInfo, 8> RegPairs; computeCalleeSaveRegisterPairs(MF, CSI, TRI, RegPairs); + const MachineRegisterInfo &MRI = MF.getRegInfo(); for (auto RPII = RegPairs.rbegin(), RPIE = RegPairs.rend(); RPII != RPIE; ++RPII) { @@ -1022,9 +1023,11 @@ bool AArch64FrameLowering::spillCalleeSavedRegisters( dbgs() << ")\n"); MachineInstrBuilder MIB = BuildMI(MBB, MI, DL, TII.get(StrOpc)); - MBB.addLiveIn(Reg1); + if (!MRI.isReserved(Reg1)) + MBB.addLiveIn(Reg1); if (RPI.isPaired()) { - MBB.addLiveIn(Reg2); + if (!MRI.isReserved(Reg2)) + MBB.addLiveIn(Reg2); MIB.addReg(Reg2, getPrologueDeath(MF, Reg2)); MIB.addMemOperand(MF.getMachineMemOperand( MachinePointerInfo::getFixedStack(MF, RPI.FrameIdx + 1), |
