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| author | Evan Cheng <evan.cheng@apple.com> | 2007-03-18 09:02:31 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2007-03-18 09:02:31 +0000 |
| commit | e951cd1647834c1c6877ca9a699ef6b00a2d0ce9 (patch) | |
| tree | e899f3d6c18fdab15135930d85a7159d38424800 /lib/CodeGen/PHIElimination.cpp | |
| parent | 7e79e396a4ee6f96346881e090c943d7207d8abe (diff) | |
Keep UsedBlocks info accurate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35140 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 6a9f428208..734a06fa9d 100644 --- a/lib/CodeGen/PHIElimination.cpp +++ b/lib/CodeGen/PHIElimination.cpp @@ -160,6 +160,8 @@ 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 @@ -210,6 +212,7 @@ 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 |