diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp index cc96dfe..3f943e8 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp @@ -1572,7 +1572,8 @@ SDValue DAGTypeLegalizer::WidenVecRes_BIT_CONVERT(SDNode *N) { unsigned WidenSize = WidenVT.getSizeInBits(); unsigned InSize = InVT.getSizeInBits(); - if (WidenSize % InSize == 0) { + // x86mmx is not an acceptable vector element type, so don't try. + if (WidenSize % InSize == 0 && InVT != MVT::x86mmx) { // Determine new input vector type. The new input vector type will use // the same element type (if its a vector) or use the input type as a // vector. It is the same size as the type to widen to. @@ -2049,7 +2050,8 @@ SDValue DAGTypeLegalizer::WidenVecOp_BIT_CONVERT(SDNode *N) { // Check if we can convert between two legal vector types and extract. unsigned InWidenSize = InWidenVT.getSizeInBits(); unsigned Size = VT.getSizeInBits(); - if (InWidenSize % Size == 0 && !VT.isVector()) { + // x86mmx is not an acceptable vector element type, so don't try. + if (InWidenSize % Size == 0 && !VT.isVector() && VT != MVT::x86mmx) { unsigned NewNumElts = InWidenSize / Size; EVT NewVT = EVT::getVectorVT(*DAG.getContext(), VT, NewNumElts); if (TLI.isTypeSynthesizable(NewVT)) { |