diff options
| -rw-r--r-- | llvm/lib/CodeGen/RegisterScavenging.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/RegisterScavenging.cpp b/llvm/lib/CodeGen/RegisterScavenging.cpp index a878c34f9aa..3660586c135 100644 --- a/llvm/lib/CodeGen/RegisterScavenging.cpp +++ b/llvm/lib/CodeGen/RegisterScavenging.cpp @@ -594,7 +594,8 @@ unsigned RegScavenger::scavengeRegisterBackwards(const TargetRegisterClass &RC, MachineBasicBlock::iterator ReloadAfter = RestoreAfter ? std::next(MBBI) : MBBI; MachineBasicBlock::iterator ReloadBefore = std::next(ReloadAfter); - LLVM_DEBUG(dbgs() << "Reload before: " << *ReloadBefore << '\n'); + if (ReloadBefore != MBB.end()) + LLVM_DEBUG(dbgs() << "Reload before: " << *ReloadBefore << '\n'); ScavengedInfo &Scavenged = spill(Reg, RC, SPAdj, SpillBefore, ReloadBefore); Scavenged.Restore = &*std::prev(SpillBefore); LiveUnits.removeReg(Reg); |
