diff options
| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-10-10 10:44:15 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-10-10 10:44:15 +0000 |
| commit | 5cb3a82892ed66655849b49cd693c69f2139ec5c (patch) | |
| tree | 50ffbc342b1166f2911b88524a9db4c4df403352 /llvm/lib/CodeGen/SelectionDAG | |
| parent | d227754973a4d4fd8b62798290c79a8be0ea4086 (diff) | |
| download | bcm5719-llvm-5cb3a82892ed66655849b49cd693c69f2139ec5c.tar.gz bcm5719-llvm-5cb3a82892ed66655849b49cd693c69f2139ec5c.zip | |
[TargetLowering] Add root node back to work list after successful SimplifyDemandedBits/SimplifyDemandedVectorElts
Similar to what already happens in the DAGCombiner wrappers, this patch adds the root nodes back onto the worklist if the DCI wrappers' SimplifyDemandedBits/SimplifyDemandedVectorElts were successful.
Differential Revision: https://reviews.llvm.org/D53026
llvm-svn: 344132
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp index 2858f4cdfae..04be0d4cf54 100644 --- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -490,8 +490,10 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op, const APInt &DemandedMask, KnownBits Known; bool Simplified = SimplifyDemandedBits(Op, DemandedMask, Known, TLO); - if (Simplified) + if (Simplified) { + DCI.AddToWorklist(Op.getNode()); DCI.CommitTargetLoweringOpt(TLO); + } return Simplified; } @@ -1359,8 +1361,10 @@ bool TargetLowering::SimplifyDemandedVectorElts(SDValue Op, bool Simplified = SimplifyDemandedVectorElts(Op, DemandedElts, KnownUndef, KnownZero, TLO); - if (Simplified) + if (Simplified) { + DCI.AddToWorklist(Op.getNode()); DCI.CommitTargetLoweringOpt(TLO); + } return Simplified; } |
