diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp index ca0f0d69aea..3b05841ac93 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp @@ -306,21 +306,24 @@ SDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) { BitConvertToInteger(GetScalarizedVector(InOp))); break; case TargetLowering::TypeSplitVector: { - // For example, i32 = BITCAST v2i16 on alpha. Convert the split - // pieces of the input into integers and reassemble in the final type. - SDValue Lo, Hi; - GetSplitVector(N->getOperand(0), Lo, Hi); - Lo = BitConvertToInteger(Lo); - Hi = BitConvertToInteger(Hi); - - if (DAG.getDataLayout().isBigEndian()) - std::swap(Lo, Hi); - - InOp = DAG.getNode(ISD::ANY_EXTEND, dl, - EVT::getIntegerVT(*DAG.getContext(), - NOutVT.getSizeInBits()), - JoinIntegers(Lo, Hi)); - return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); + if (!NOutVT.isVector()) { + // For example, i32 = BITCAST v2i16 on alpha. Convert the split + // pieces of the input into integers and reassemble in the final type. + SDValue Lo, Hi; + GetSplitVector(N->getOperand(0), Lo, Hi); + Lo = BitConvertToInteger(Lo); + Hi = BitConvertToInteger(Hi); + + if (DAG.getDataLayout().isBigEndian()) + std::swap(Lo, Hi); + + InOp = DAG.getNode(ISD::ANY_EXTEND, dl, + EVT::getIntegerVT(*DAG.getContext(), + NOutVT.getSizeInBits()), + JoinIntegers(Lo, Hi)); + return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); + } + break; } case TargetLowering::TypeWidenVector: // The input is widened to the same size. Convert to the widened value. |
