diff options
Diffstat (limited to 'lib/CodeGen/LiveDebugVariables.cpp')
| -rw-r--r-- | lib/CodeGen/LiveDebugVariables.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveDebugVariables.cpp b/lib/CodeGen/LiveDebugVariables.cpp index 2187833031..5b7941f461 100644 --- a/lib/CodeGen/LiveDebugVariables.cpp +++ b/lib/CodeGen/LiveDebugVariables.cpp @@ -721,7 +721,8 @@ renameRegister(unsigned OldReg, unsigned NewReg, unsigned SubIdx) { if (TargetRegisterInfo::isVirtualRegister(NewReg)) mapVirtReg(NewReg, UV); - virtRegToEqClass.erase(OldReg); + if (OldReg != NewReg) + virtRegToEqClass.erase(OldReg); do { UV->renameRegister(OldReg, NewReg, SubIdx, TRI); |