diff options
| -rw-r--r-- | lib/Target/ARM/Thumb1RegisterInfo.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/ARM/Thumb1RegisterInfo.cpp b/lib/Target/ARM/Thumb1RegisterInfo.cpp index 1613acd7a6..6b8bf0e639 100644 --- a/lib/Target/ARM/Thumb1RegisterInfo.cpp +++ b/lib/Target/ARM/Thumb1RegisterInfo.cpp @@ -571,6 +571,11 @@ Thumb1RegisterInfo::saveScavengerRegister(MachineBasicBlock &MBB, // If this instruction affects R12, adjust our restore point. for (unsigned i = 0, e = II->getNumOperands(); i != e; ++i) { const MachineOperand &MO = II->getOperand(i); + if (MO.isRegMask() && MO.clobbersPhysReg(ARM::R12)) { + UseMI = II; + done = true; + break; + } if (!MO.isReg() || MO.isUndef() || !MO.getReg() || TargetRegisterInfo::isVirtualRegister(MO.getReg())) continue; |