diff options
Diffstat (limited to 'llvm/lib/CodeGen')
-rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index de0f6ce26d9..7343236e6a1 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -3691,6 +3691,12 @@ SDValue DAGCombiner::visitSHL(SDNode *N) { EVT VT = N0.getValueType(); unsigned OpSizeInBits = VT.getScalarType().getSizeInBits(); + // fold vector ops + if (VT.isVector()) { + SDValue FoldedVOp = SimplifyVBinOp(N); + if (FoldedVOp.getNode()) return FoldedVOp; + } + // fold (shl c1, c2) -> c1<<c2 if (N0C && N1C) return DAG.FoldConstantArithmetic(ISD::SHL, VT, N0C, N1C); @@ -3842,6 +3848,12 @@ SDValue DAGCombiner::visitSRA(SDNode *N) { EVT VT = N0.getValueType(); unsigned OpSizeInBits = VT.getScalarType().getSizeInBits(); + // fold vector ops + if (VT.isVector()) { + SDValue FoldedVOp = SimplifyVBinOp(N); + if (FoldedVOp.getNode()) return FoldedVOp; + } + // fold (sra c1, c2) -> (sra c1, c2) if (N0C && N1C) return DAG.FoldConstantArithmetic(ISD::SRA, VT, N0C, N1C); @@ -3987,6 +3999,12 @@ SDValue DAGCombiner::visitSRL(SDNode *N) { EVT VT = N0.getValueType(); unsigned OpSizeInBits = VT.getScalarType().getSizeInBits(); + // fold vector ops + if (VT.isVector()) { + SDValue FoldedVOp = SimplifyVBinOp(N); + if (FoldedVOp.getNode()) return FoldedVOp; + } + // fold (srl c1, c2) -> c1 >>u c2 if (N0C && N1C) return DAG.FoldConstantArithmetic(ISD::SRL, VT, N0C, N1C); |