diff options
Diffstat (limited to 'lib/CodeGen/SimpleRegisterCoalescing.cpp')
| -rw-r--r-- | lib/CodeGen/SimpleRegisterCoalescing.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/CodeGen/SimpleRegisterCoalescing.cpp b/lib/CodeGen/SimpleRegisterCoalescing.cpp index 68be3e111f..9cb06ced3f 100644 --- a/lib/CodeGen/SimpleRegisterCoalescing.cpp +++ b/lib/CodeGen/SimpleRegisterCoalescing.cpp @@ -533,14 +533,16 @@ void SimpleRegisterCoalescing::RemoveUnnecessaryKills(unsigned Reg, MachineOperand &UseMO = UI.getOperand(); if (UseMO.isKill()) { MachineInstr *UseMI = UseMO.getParent(); +#if 0 unsigned SReg, DReg; if (!tii_->isMoveInstr(*UseMI, SReg, DReg)) continue; +#endif unsigned UseIdx = li_->getUseIndex(li_->getInstructionIndex(UseMI)); if (JoinedCopies.count(UseMI)) continue; const LiveRange *UI = LI.getLiveRangeContaining(UseIdx); - if (!LI.isKill(UI->valno, UseIdx+1)) + if (!UI || !LI.isKill(UI->valno, UseIdx+1)) UseMO.setIsKill(false); } } |