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Revert r226811, MSVC accepts code sane compilers don't.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226814 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Kuperstein
2015-01-22 12:48:07 +00:00
parent 0a979a09ae
commit 8fc1c3a619
5 changed files with 6 additions and 85 deletions
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lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+1 -19
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@@ -11490,7 +11490,7 @@ SDValue DAGCombiner::visitVECTOR_SHUFFLE(SDNode *N) {
}
// If it is a splat, check if the argument vector is another splat or a
// build_vector.
// build_vector with all scalar elements the same.
if (SVN->isSplat() && SVN->getSplatIndex() < (int)NumElts) {
SDNode *V = N0.getNode();
@@ -11527,24 +11527,6 @@ SDValue DAGCombiner::visitVECTOR_SHUFFLE(SDNode *N) {
// Splat of <x, x, x, x>, return <x, x, x, x>
if (AllSame)
return N0;
// If the splatted element is a constant, just build the vector out of
// constants directly.
const SDValue &Splatted = V->getOperand(SVN->getSplatIndex());
if (isa<ConstantSDNode>(Splatted) || isa<ConstantFPSDNode>(Splatted)) {
SmallVector<SDValue, 8> Ops;
for (unsigned i = 0; i != NumElts; ++i) {
Ops.push_back(Splatted);
}
SDValue &NewBV = DAG.getNode(ISD::BUILD_VECTOR, SDLoc(N),
V->getValueType(0), Ops);
// We may have jumped through bitcasts, so the type of the
// BUILD_VECTOR may not match the type of the shuffle.
if (V->getValueType(0) != VT)
NewBV = DAG.getNode(ISD::BITCAST, SDLoc(N), VT, NewBV);
return NewBV;
}
}
}