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| author | Michael Liao <michael.liao@intel.com> | 2012-09-17 18:05:20 +0000 |
|---|---|---|
| committer | Michael Liao <michael.liao@intel.com> | 2012-09-17 18:05:20 +0000 |
| commit | bb7300224738e65f9a9945dc7df2f360b1d4feb6 (patch) | |
| tree | 1d80227c92012a41ce588ac204430262fdda3e5b /lib | |
| parent | 9bb938c5401db90817d16b32fa078066fb586551 (diff) | |
| download | llvm-bb7300224738e65f9a9945dc7df2f360b1d4feb6.tar.gz llvm-bb7300224738e65f9a9945dc7df2f360b1d4feb6.tar.bz2 llvm-bb7300224738e65f9a9945dc7df2f360b1d4feb6.tar.xz | |
Fix PR13859
- Preserve the original NOutVT during casting from vector to integer by
extracting vector elements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164042 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp b/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp index 08668e1b40..7b8f138a34 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeTypesGeneric.cpp @@ -95,17 +95,18 @@ void DAGTypeLegalizer::ExpandRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi) { // Handle cases like i64 = BITCAST v1i64 on x86, where the operand // is legal but the result is not. unsigned NumElems = 2; - EVT NVT = EVT::getVectorVT(*DAG.getContext(), NOutVT, NumElems); + EVT ElemVT = NOutVT; + EVT NVT = EVT::getVectorVT(*DAG.getContext(), ElemVT, NumElems); - // If <NOutVT * N> is not a legal type, try <NOutVT/2 * (N*2)>. + // If <ElemVT * N> is not a legal type, try <ElemVT/2 * (N*2)>. while (!isTypeLegal(NVT)) { - unsigned NewSizeInBits = NOutVT.getSizeInBits() / 2; + unsigned NewSizeInBits = ElemVT.getSizeInBits() / 2; // If the element size is smaller than byte, bail. if (NewSizeInBits < 8) break; NumElems *= 2; - NOutVT = EVT::getIntegerVT(*DAG.getContext(), NewSizeInBits); - NVT = EVT::getVectorVT(*DAG.getContext(), NOutVT, NumElems); + ElemVT = EVT::getIntegerVT(*DAG.getContext(), NewSizeInBits); + NVT = EVT::getVectorVT(*DAG.getContext(), ElemVT, NumElems); } if (isTypeLegal(NVT)) { @@ -113,7 +114,7 @@ void DAGTypeLegalizer::ExpandRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi) { SmallVector<SDValue, 8> Vals; for (unsigned i = 0; i < NumElems; ++i) - Vals.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NOutVT, + Vals.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, ElemVT, CastInOp, DAG.getIntPtrConstant(i))); // Build Lo, Hi pair by pairing extracted elements if needed. |