diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineSink.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineSink.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/MachineSink.cpp b/llvm/lib/CodeGen/MachineSink.cpp index 797433e..96d575f 100644 --- a/llvm/lib/CodeGen/MachineSink.cpp +++ b/llvm/lib/CodeGen/MachineSink.cpp @@ -823,6 +823,8 @@ bool MachineSinking::isProfitableToSinkTo(Register Reg, MachineInstr &MI, return false; } else { MachineInstr *DefMI = MRI->getVRegDef(Reg); + if (!DefMI) + continue; MachineCycle *Cycle = CI->getCycle(DefMI->getParent()); // DefMI is defined outside of cycle. There should be no live range // impact for this operand. Defination outside of cycle means: |