diff options
| -rw-r--r-- | lib/CodeGen/MachineBasicBlock.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp index 3d754366ee..f22a70716e 100644 --- a/lib/CodeGen/MachineBasicBlock.cpp +++ b/lib/CodeGen/MachineBasicBlock.cpp @@ -852,12 +852,13 @@ MachineBasicBlock::SplitCriticalEdge(MachineBasicBlock *Succ, Pass *P) { // Update all intervals for registers whose uses may have been modified by // updateTerminator(). iterator FirstTerminator = getFirstTerminator(); - MachineInstr *FirstTerminatorMI = FirstTerminator; - if (FirstTerminatorMI->isBundled()) - FirstTerminatorMI = getBundleStart(FirstTerminatorMI); - reverse_iterator PreTerminators = - (FirstTerminator == begin()) ? rend() - : reverse_iterator(FirstTerminatorMI); + reverse_iterator PreTerminators; + if (FirstTerminator == begin()) + PreTerminators = rend(); + else if (FirstTerminator == end()) + PreTerminators = rbegin(); + else + PreTerminators = reverse_iterator(FirstTerminator); LIS->repairIntervalsInRange(this, rbegin(), PreTerminators, UsedRegs); } |