diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index f3d2fdfce4..27afe117e6 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1916,12 +1916,29 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { - default: assert(0 && "Operation not supported"); + default: assert(0 && "BinOp legalize operation not supported"); case TargetLowering::Legal: break; case TargetLowering::Custom: Tmp1 = TLI.LowerOperation(Result, DAG); if (Tmp1.Val) Result = Tmp1; break; + case TargetLowering::Expand: { + assert(MVT::isVector(Node->getValueType(0)) && + "Cannot expand this binary operator!"); + // Expand the operation into a bunch of nasty scalar code. + std::vector<SDOperand> Ops; + MVT::ValueType EltVT = MVT::getVectorBaseType(Node->getValueType(0)); + MVT::ValueType PtrVT = TLI.getPointerTy(); + for (unsigned i = 0, e = MVT::getVectorNumElements(Node->getValueType(0)); + i != e; ++i) { + SDOperand Idx = DAG.getConstant(i, PtrVT); + SDOperand LHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, Idx); + SDOperand RHS = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, Idx); + Ops.push_back(DAG.getNode(Node->getOpcode(), EltVT, LHS, RHS)); + } + Result = DAG.getNode(ISD::BUILD_VECTOR, Node->getValueType(0), Ops); + break; + } } break; |