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author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-04-25 16:16:03 +0000 |
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committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2017-04-25 16:16:03 +0000 |
commit | 8264ed7075142d2ba34a65076070458e7aefeb7c (patch) | |
tree | b9ad8a829022c60e7d7be4759afdbffef1191571 /llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | |
parent | 577168ecdeadbb991dabf16d7879f31f73b9901d (diff) | |
download | bcm5719-llvm-8264ed7075142d2ba34a65076070458e7aefeb7c.tar.gz bcm5719-llvm-8264ed7075142d2ba34a65076070458e7aefeb7c.zip |
[DAGCombiner] Refactor to make it easy to add support for vectors in a future patch. NFCI.
llvm-svn: 301320
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
-rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index c67bca4da85..1251ae6262b 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -4203,16 +4203,16 @@ SDValue DAGCombiner::visitOR(SDNode *N) { // Canonicalize (or (and X, c1), c2) -> (and (or X, c2), c1|c2) // iff (c1 & c2) != 0. - if (N1C && N0.getOpcode() == ISD::AND && N0.getNode()->hasOneUse() && - isa<ConstantSDNode>(N0.getOperand(1))) { - ConstantSDNode *C1 = cast<ConstantSDNode>(N0.getOperand(1)); - if (C1->getAPIntValue().intersects(N1C->getAPIntValue())) { - if (SDValue COR = DAG.FoldConstantArithmetic(ISD::OR, SDLoc(N1), VT, - N1C, C1)) - return DAG.getNode( - ISD::AND, SDLoc(N), VT, - DAG.getNode(ISD::OR, SDLoc(N0), VT, N0.getOperand(0), N1), COR); - return SDValue(); + if (N1C && N0.getOpcode() == ISD::AND && N0.getNode()->hasOneUse()) { + if (ConstantSDNode *C1 = dyn_cast<ConstantSDNode>(N0.getOperand(1))) { + if (C1->getAPIntValue().intersects(N1C->getAPIntValue())) { + if (SDValue COR = + DAG.FoldConstantArithmetic(ISD::OR, SDLoc(N1), VT, N1C, C1)) + return DAG.getNode( + ISD::AND, SDLoc(N), VT, + DAG.getNode(ISD::OR, SDLoc(N0), VT, N0.getOperand(0), N1), COR); + return SDValue(); + } } } |