diff options
| -rw-r--r-- | lib/Target/ARM/ARMBaseRegisterInfo.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp index bf779ccf55..dd6204996d 100644 --- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp +++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp @@ -779,7 +779,9 @@ ARMBaseRegisterInfo::processFunctionBeforeCalleeSavedScan(MachineFunction &MF, while (NumExtras && !UnspilledCS1GPRs.empty()) { unsigned Reg = UnspilledCS1GPRs.back(); UnspilledCS1GPRs.pop_back(); - if (!isReservedReg(MF, Reg)) { + if (!isReservedReg(MF, Reg) && + (!AFI->isThumb1OnlyFunction() || isARMLowRegister(Reg) || + Reg == ARM::LR)) { Extras.push_back(Reg); NumExtras--; } |