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Fix CodeGen/Generic/2005-12-12-ExpandSextInreg.ll
author
Chris Lattner
<sabre@nondot.org>
Mon, 12 Dec 2005 22:27:43 +0000
(22:27 +0000)
committer
Chris Lattner
<sabre@nondot.org>
Mon, 12 Dec 2005 22:27:43 +0000
(22:27 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24677
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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diff --git
a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 620b6439c6897a4e72742d360f48c42a9663ff90..6896fb39e261b0c7600719b0e928f0632cdef236 100644
(file)
--- a/
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@
-3196,6
+3196,16
@@
void SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){
Lo = LegalizeOp(Node->getOperand(0));
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);