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Simplify this code. getConstant knows how to make

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broadcasted vector constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69634 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-04-20 22:51:43 +00:00
parent ea84e93a42
commit bd209ab9bc
1 changed files with 3 additions and 10 deletions
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13
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -839,16 +839,9 @@ SDValue SelectionDAG::getZeroExtendInReg(SDValue Op, DebugLoc DL, MVT VT) {
/// getNOT - Create a bitwise NOT operation as (XOR Val, -1).
///
SDValue SelectionDAG::getNOT(DebugLoc DL, SDValue Val, MVT VT) {
SDValue NegOne;
if (VT.isVector()) {
MVT EltVT = VT.getVectorElementType();
SDValue NegOneElt =
getConstant(APInt::getAllOnesValue(EltVT.getSizeInBits()), EltVT);
std::vector<SDValue> NegOnes(VT.getVectorNumElements(), NegOneElt);
NegOne = getNode(ISD::BUILD_VECTOR, DL, VT, &NegOnes[0], NegOnes.size());
} else {
NegOne = getConstant(APInt::getAllOnesValue(VT.getSizeInBits()), VT);
}
MVT EltVT = VT.isVector() ? VT.getVectorElementType() : VT;
SDValue NegOne =
getConstant(APInt::getAllOnesValue(EltVT.getSizeInBits()), VT);
return getNode(ISD::XOR, DL, VT, Val, NegOne);
}