diff options
| -rw-r--r-- | lib/Target/ARM/Thumb2InstrInfo.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/ARM/Thumb2InstrInfo.cpp b/lib/Target/ARM/Thumb2InstrInfo.cpp index 836c1baffd..9b1073be3c 100644 --- a/lib/Target/ARM/Thumb2InstrInfo.cpp +++ b/lib/Target/ARM/Thumb2InstrInfo.cpp @@ -95,8 +95,11 @@ Thumb2InstrInfo::ReplaceTailWithBranchTo(MachineBasicBlock::iterator Tail, bool Thumb2InstrInfo::isLegalToSplitMBBAt(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI) const { - while (MBBI->isDebugValue()) + while (MBBI->isDebugValue()) { ++MBBI; + if (MBBI == MBB.end()) + return false; + } unsigned PredReg = 0; return llvm::getITInstrPredicate(MBBI, PredReg) == ARMCC::AL; |