diff options
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64FrameLowering.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp index 61e91dd121d..9e018acebfc 100644 --- a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp +++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp @@ -1126,7 +1126,9 @@ void AArch64FrameLowering::determineCalleeSaves(MachineFunction &MF, // FIXME: the usual format is actually better if unwinding isn't needed. if (produceCompactUnwindFrame(MF) && !SavedRegs.test(PairedReg)) { SavedRegs.set(PairedReg); - ExtraCSSpill = true; + if (AArch64::GPR64RegClass.contains(PairedReg) && + !RegInfo->isReservedReg(MF, PairedReg)) + ExtraCSSpill = true; } } |
