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Fix using wrong result type for setcc.

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When reducing the bitwidth of a comparison against a constant, the
original setcc's result type was used, which was incorrect.

No test since I don't think any other in tree targets change the
bitwidth of the setcc type depending on the bitwidth of the compared
type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208236 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault
2014-05-07 18:26:58 +00:00
parent bbad52193e
commit ad4e6970a1
3 changed files with 21 additions and 4 deletions
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8
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -963,6 +963,14 @@ SDValue SelectionDAG::getZExtOrTrunc(SDValue Op, SDLoc DL, EVT VT) {
getNode(ISD::TRUNCATE, DL, VT, Op);
}
SDValue SelectionDAG::getBoolExtOrTrunc(SDValue Op, SDLoc SL, EVT VT) {
if (VT.bitsLE(Op.getValueType()))
return getNode(ISD::TRUNCATE, SL, VT, Op);
TargetLowering::BooleanContent BType = TLI->getBooleanContents(VT.isVector());
return getNode(TLI->getExtendForContent(BType), SL, VT, Op);
}
SDValue SelectionDAG::getZeroExtendInReg(SDValue Op, SDLoc DL, EVT VT) {
assert(!VT.isVector() &&
"getZeroExtendInReg should use the vector element type instead of "