diff options
| author | Craig Topper <craig.topper@gmail.com> | 2012-08-14 08:18:43 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2012-08-14 08:18:43 +0000 |
| commit | cacafd410bb4a612f36bed5a260793e7d56503c8 (patch) | |
| tree | 584c9196023b99d387ba267ebb99457a27c1dec0 | |
| parent | 6d6881532cc2824408652080fc05af8f522c317a (diff) | |
| download | external_llvm-cacafd410bb4a612f36bed5a260793e7d56503c8.zip external_llvm-cacafd410bb4a612f36bed5a260793e7d56503c8.tar.gz external_llvm-cacafd410bb4a612f36bed5a260793e7d56503c8.tar.bz2 | |
Factor duplicate calls to getUNDEF in several functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161860 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index fc5ad78..ea66a61 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -13266,8 +13266,9 @@ SDValue X86TargetLowering::PerformTruncateCombine(SDNode *N, SelectionDAG &DAG, // PSHUFD static const int ShufMask1[] = {0, 2, 0, 0}; - OpLo = DAG.getVectorShuffle(VT, dl, OpLo, DAG.getUNDEF(VT), ShufMask1); - OpHi = DAG.getVectorShuffle(VT, dl, OpHi, DAG.getUNDEF(VT), ShufMask1); + SDValue Undef = DAG.getUNDEF(VT); + OpLo = DAG.getVectorShuffle(VT, dl, OpLo, Undef, ShufMask1); + OpHi = DAG.getVectorShuffle(VT, dl, OpHi, Undef, ShufMask1); // MOVLHPS static const int ShufMask2[] = {0, 1, 4, 5}; @@ -13325,10 +13326,9 @@ SDValue X86TargetLowering::PerformTruncateCombine(SDNode *N, SelectionDAG &DAG, static const int ShufMask1[] = {0, 1, 4, 5, 8, 9, 12, 13, -1, -1, -1, -1, -1, -1, -1, -1}; - OpLo = DAG.getVectorShuffle(MVT::v16i8, dl, OpLo, DAG.getUNDEF(MVT::v16i8), - ShufMask1); - OpHi = DAG.getVectorShuffle(MVT::v16i8, dl, OpHi, DAG.getUNDEF(MVT::v16i8), - ShufMask1); + SDValue Undef = DAG.getUNDEF(MVT::v16i8); + OpLo = DAG.getVectorShuffle(MVT::v16i8, dl, OpLo, Undef, ShufMask1); + OpHi = DAG.getVectorShuffle(MVT::v16i8, dl, OpHi, Undef, ShufMask1); OpLo = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpLo); OpHi = DAG.getNode(ISD::BITCAST, dl, MVT::v4i32, OpHi); @@ -15277,19 +15277,19 @@ static SDValue PerformSExtCombine(SDNode *N, SelectionDAG &DAG, // concat the vectors to original VT unsigned NumElems = OpVT.getVectorNumElements(); + SDValue Undef = DAG.getUNDEF(OpVT); + SmallVector<int,8> ShufMask1(NumElems, -1); for (unsigned i = 0; i != NumElems/2; ++i) ShufMask1[i] = i; - SDValue OpLo = DAG.getVectorShuffle(OpVT, dl, Op, DAG.getUNDEF(OpVT), - &ShufMask1[0]); + SDValue OpLo = DAG.getVectorShuffle(OpVT, dl, Op, Undef, &ShufMask1[0]); SmallVector<int,8> ShufMask2(NumElems, -1); for (unsigned i = 0; i != NumElems/2; ++i) ShufMask2[i] = i + NumElems/2; - SDValue OpHi = DAG.getVectorShuffle(OpVT, dl, Op, DAG.getUNDEF(OpVT), - &ShufMask2[0]); + SDValue OpHi = DAG.getVectorShuffle(OpVT, dl, Op, Undef, &ShufMask2[0]); EVT HalfVT = EVT::getVectorVT(*DAG.getContext(), VT.getScalarType(), VT.getVectorNumElements()/2); |