diff options
| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-08-11 08:37:00 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-08-11 08:37:00 +0000 |
| commit | 83cf3a29b55d368e888eb76749866a3689a1cf65 (patch) | |
| tree | c163f0772f871357e6c1af5cdc7c1a640f9e146b /llvm/lib | |
| parent | 55afa7504f11dddcde9f732cb28d1af0c0197cce (diff) | |
| download | bcm5719-llvm-83cf3a29b55d368e888eb76749866a3689a1cf65.tar.gz bcm5719-llvm-83cf3a29b55d368e888eb76749866a3689a1cf65.zip | |
[DAGCombiner] Remove shuffle support from simplifyShuffleMask
rL310372 enabled simplifyShuffleMask to support undef shuffle mask inputs, but its causing hangs.
Removing support until I can triage the problem
llvm-svn: 310699
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 7515a7ab6d7..a247f2656be 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -15161,8 +15161,6 @@ static SDValue simplifyShuffleMask(ShuffleVectorSDNode *SVN, SDValue N0, // TODO - handle more cases as required. if (V.getOpcode() == ISD::BUILD_VECTOR) return V.getOperand(Idx).isUndef(); - if (auto *SVN = dyn_cast<ShuffleVectorSDNode>(V)) - return SVN->getMaskElt(Idx) < 0; return false; }; |
