diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index 8edbdf07cce..9a656a7c83a 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -282,6 +282,12 @@ static SDValue getCopyFromPartsVector(SelectionDAG &DAG, DebugLoc DL, // Vector/Vector bitcast. return DAG.getNode(ISD::BITCAST, DL, ValueVT, Val); } + + // Trivial bitcast if the types are the same size and the destination + // vector type is legal. + if (PartVT.getSizeInBits() == ValueVT.getSizeInBits() && + TLI.isTypeLegal(ValueVT)) + return DAG.getNode(ISD::BITCAST, DL, ValueVT, Val); assert(ValueVT.getVectorElementType() == PartVT && ValueVT.getVectorNumElements() == 1 && |
