diff options
Diffstat (limited to 'lib/CodeGen/PHIElimination.cpp')
| -rw-r--r-- | lib/CodeGen/PHIElimination.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/PHIElimination.cpp b/lib/CodeGen/PHIElimination.cpp index ffec6ca6d7..371fb072b5 100644 --- a/lib/CodeGen/PHIElimination.cpp +++ b/lib/CodeGen/PHIElimination.cpp @@ -167,6 +167,8 @@ void PNE::LowerAtomicPHINode(MachineBasicBlock &MBB, // Realize that the destination register is defined by the PHI copy now, not // the PHI itself. LV->getVarInfo(DestReg).DefInst = PHICopy; + + LV->getVarInfo(IncomingReg).UsedBlocks[MBB.getNumber()] = true; } // Adjust the VRegPHIUseCount map to account for the removal of this PHI @@ -217,6 +219,7 @@ void PNE::LowerAtomicPHINode(MachineBasicBlock &MBB, // instruction kills the incoming value. // LiveVariables::VarInfo &InRegVI = LV->getVarInfo(SrcReg); + InRegVI.UsedBlocks[opBlock.getNumber()] = true; // Loop over all of the successors of the basic block, checking to see // if the value is either live in the block, or if it is killed in the |