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Fixed scalarizing an extract subvector and prevent an infinite loop

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when simplify a vector. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58820 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mon P Wang
2008-11-06 22:52:21 +00:00
parent 703ccfe053
commit e0b436ac41
2 changed files with 9 additions and 3 deletions
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6
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@@ -7516,8 +7516,8 @@ SDValue SelectionDAGLegalize::ScalarizeVectorOp(SDValue Op) {
break;
}
case ISD::EXTRACT_SUBVECTOR:
Result = Node->getOperand(0);
assert(Result.getValueType() == NewVT);
Result = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewVT, Node->getOperand(0),
Node->getOperand(1));
break;
case ISD::BIT_CONVERT: {
SDValue Op0 = Op.getOperand(0);
@@ -8174,7 +8174,7 @@ void SelectionDAGLegalize::genWidenVectorStores(SDValueVector& StChain,
SDValue VecOp = DAG.getNode(ISD::BIT_CONVERT, VecEVT, ValOp);
SDValue EOp = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EVT, VecOp,
DAG.getIntPtrConstant(0));
DAG.getIntPtrConstant(0));
SDValue StOp = DAG.getStore(Chain, EOp, BasePtr, SV, SVOffset,
isVolatile, Alignment);
StChain.push_back(StOp);