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Fix CodeGen/Generic/2005-12-12-ExpandSextInreg.ll

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24677 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-12-12 22:27:43 +00:00
parent a92dabb259
commit 58f7963b8b
1 changed files with 10 additions and 0 deletions
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10
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -3197,6 +3197,16 @@ void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
Hi = LegalizeOp(Node->getOperand(1));
break;
case ISD::SIGN_EXTEND_INREG:
ExpandOp(Node->getOperand(0), Lo, Hi);
// Sign extend the lo-part.
Hi = DAG.getNode(ISD::SRA, NVT, Lo,
DAG.getConstant(MVT::getSizeInBits(NVT)-1,
TLI.getShiftAmountTy()));
// sext_inreg the low part if needed.
Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1));
break;
case ISD::CTPOP:
ExpandOp(Node->getOperand(0), Lo, Hi);
Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L)