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Refactor the code to grab the low and high parts of a value

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using EXTRACT_ELEMENT into a utility function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70056 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-04-25 17:55:53 +00:00
parent 2fe4d0aacb
commit 2bee0afb7d
4 changed files with 38 additions and 126 deletions
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12
lib/CodeGen/SelectionDAG/LegalizeTypes.cpp
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@@ -933,6 +933,18 @@ void DAGTypeLegalizer::GetSplitDestVTs(MVT InVT, MVT &LoVT, MVT &HiVT) {
}
}
/// GetPairElements - Use ISD::EXTRACT_ELEMENT nodes to extract the low and
/// high parts of the given value.
void DAGTypeLegalizer::GetPairElements(SDValue Pair,
SDValue &Lo, SDValue &Hi) {
DebugLoc dl = Pair.getDebugLoc();
MVT NVT = TLI.getTypeToTransformTo(Pair.getValueType());
Lo = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Pair,
DAG.getIntPtrConstant(0));
Hi = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, NVT, Pair,
DAG.getIntPtrConstant(1));
}
SDValue DAGTypeLegalizer::GetVectorElementPointer(SDValue VecPtr, MVT EltVT,
SDValue Index) {
DebugLoc dl = Index.getDebugLoc();