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Make calls to getVectorShuffle more consistent. Use shuffle VT for calls to getUNDEF instead of requerying. Use &Mask[0] instead of Mask.data().

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155320 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2012-04-22 19:17:57 +00:00
parent d63fa657e4
commit df966f6bee
1 changed files with 7 additions and 8 deletions
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15
lib/Target/X86/X86ISelLowering.cpp
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@ -5111,8 +5111,7 @@ X86TargetLowering::LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const {
Mask.push_back(Idx);
for (unsigned i = 1; i != VecElts; ++i)
Mask.push_back(i);
Item = DAG.getVectorShuffle(VecVT, dl, Item,
DAG.getUNDEF(Item.getValueType()),
Item = DAG.getVectorShuffle(VecVT, dl, Item, DAG.getUNDEF(VecVT),
&Mask[0]);
}
return DAG.getNode(ISD::BITCAST, dl, VT, Item);
@ -14409,8 +14408,8 @@ static SDValue PerformLOADCombine(SDNode *N, SelectionDAG &DAG,
for (unsigned i = 0; i < NumElems; i++) ShuffleVec[i*SizeRatio] = i;
SDValue Shuff = DAG.getVectorShuffle(WideVecVT, dl, SlicedVec,
DAG.getUNDEF(SlicedVec.getValueType()),
ShuffleVec.data());
DAG.getUNDEF(WideVecVT),
&ShuffleVec[0]);
// Bitcast to the requested type.
Shuff = DAG.getNode(ISD::BITCAST, dl, RegVT, Shuff);
@ -14491,8 +14490,8 @@ static SDValue PerformSTORECombine(SDNode *N, SelectionDAG &DAG,
if (!TLI.isTypeLegal(WideVecVT)) return SDValue();
SDValue Shuff = DAG.getVectorShuffle(WideVecVT, dl, WideVec,
DAG.getUNDEF(WideVec.getValueType()),
ShuffleVec.data());
DAG.getUNDEF(WideVecVT),
&ShuffleVec[0]);
// At this point all of the data is stored at the bottom of the
// register. We now need to save it to mem.
@ -14894,13 +14893,13 @@ static SDValue PerformSExtCombine(SDNode *N, SelectionDAG &DAG,
for (unsigned i = 0; i < NumElems/2; i++) ShufMask1[i] = i;
SDValue OpLo = DAG.getVectorShuffle(OpVT, dl, Op, DAG.getUNDEF(OpVT),
ShufMask1.data());
&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.data());
&ShufMask2[0]);
EVT HalfVT = EVT::getVectorVT(*DAG.getContext(), VT.getScalarType(),
VT.getVectorNumElements()/2);