diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineSink.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineSink.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineSink.cpp b/llvm/lib/CodeGen/MachineSink.cpp index 77820010cef..261af546d72 100644 --- a/llvm/lib/CodeGen/MachineSink.cpp +++ b/llvm/lib/CodeGen/MachineSink.cpp @@ -157,6 +157,11 @@ bool MachineSinking::PerformTrivialForwardCoalescing(MachineInstr *MI, DEBUG(dbgs() << "*** to: " << *MI); MRI->replaceRegWith(DstReg, SrcReg); MI->eraseFromParent(); + + // Conservatively, clear any kill flags, since it's possible that they are no + // longer correct. + MRI->clearKillFlags(SrcReg); + ++NumCoalesces; return true; } |
