diff options
| author | Owen Anderson <resistor@mac.com> | 2007-11-08 01:20:48 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2007-11-08 01:20:48 +0000 |
| commit | a018540807775703d630e9c92f9d8013d545599e (patch) | |
| tree | 9f30b3ba2b3985dd0d498b40311128422cb9471f /lib/CodeGen/PHIElimination.cpp | |
| parent | 43b665db50292420ff310f9050da9c28e48d252c (diff) | |
Bring UsedBlocks back. StrongPHIElimination needs this information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43866 91177308-0d34-0410-b5e6-96231b3b80d8
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 |