diff options
Diffstat (limited to 'lib/CodeGen/LiveRangeCalc.cpp')
| -rw-r--r-- | lib/CodeGen/LiveRangeCalc.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/CodeGen/LiveRangeCalc.cpp b/lib/CodeGen/LiveRangeCalc.cpp index d828f25932..c3ff4f1b6d 100644 --- a/lib/CodeGen/LiveRangeCalc.cpp +++ b/lib/CodeGen/LiveRangeCalc.cpp @@ -65,7 +65,11 @@ void LiveRangeCalc::extendToUses(LiveInterval *LI, unsigned Reg) { // Visit all operands that read Reg. This may include partial defs. for (MachineRegisterInfo::reg_nodbg_iterator I = MRI->reg_nodbg_begin(Reg), E = MRI->reg_nodbg_end(); I != E; ++I) { - const MachineOperand &MO = I.getOperand(); + MachineOperand &MO = I.getOperand(); + // Clear all kill flags. They will be reinserted after register allocation + // by LiveIntervalAnalysis::addKillFlags(). + if (MO.isUse()) + MO.setIsKill(false); if (!MO.readsReg()) continue; // MI is reading Reg. We may have visited MI before if it happens to be |