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| author | NAKAMURA Takumi <geek4civic@gmail.com> | 2015-05-06 14:03:12 +0000 |
|---|---|---|
| committer | NAKAMURA Takumi <geek4civic@gmail.com> | 2015-05-06 14:03:12 +0000 |
| commit | d7c0be9c42e8c0f7ec844d5219ef51cbc5e1952a (patch) | |
| tree | d719c3235b78d51744502953396e99994cdaee50 /llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
| parent | 04785d04883b30b07899cb280829976fb5754497 (diff) | |
| download | bcm5719-llvm-d7c0be9c42e8c0f7ec844d5219ef51cbc5e1952a.tar.gz bcm5719-llvm-d7c0be9c42e8c0f7ec844d5219ef51cbc5e1952a.zip | |
Revert r236546, "propagate IR-level fast-math-flags to DAG nodes (NFC)"
It caused undefined behavior.
llvm-svn: 236600
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index c063d4f9a38..bf42aabeab2 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -1452,9 +1452,12 @@ SDValue DAGCombiner::combine(SDNode *N) { if (isa<ConstantSDNode>(N0) || !isa<ConstantSDNode>(N1)) { SDValue Ops[] = {N1, N0}; SDNode *CSENode; - if (auto *FlagsNode = dyn_cast<SDNodeWithFlags>(N)) { - CSENode = DAG.getNodeIfExists(N->getOpcode(), N->getVTList(), - Ops, &FlagsNode->Flags); + if (const BinaryWithFlagsSDNode *BinNode = + dyn_cast<BinaryWithFlagsSDNode>(N)) { + CSENode = DAG.getNodeIfExists(N->getOpcode(), N->getVTList(), Ops, + BinNode->Flags.hasNoUnsignedWrap(), + BinNode->Flags.hasNoSignedWrap(), + BinNode->Flags.hasExact()); } else { CSENode = DAG.getNodeIfExists(N->getOpcode(), N->getVTList(), Ops); } |
