diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2018-08-02 17:32:43 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2018-08-02 17:32:43 +0000 |
| commit | b7eb8e35e481a74962664b63dfb09483b200209a (patch) | |
| tree | 1937fb4a348458ce2d02ade03ac3bb0aa18d2fcd /lib/CodeGen/RegisterScavenging.cpp | |
| parent | eb11fae6d08f479c0799db45860a98af528fa6e7 (diff) | |
Notes
Diffstat (limited to 'lib/CodeGen/RegisterScavenging.cpp')
| -rw-r--r-- | lib/CodeGen/RegisterScavenging.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index a878c34f9aa4..3660586c1358 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/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); |