diff options
| author | Chris Lattner <sabre@nondot.org> | 2006-03-21 21:02:03 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2006-03-21 21:02:03 +0000 |
| commit | e35c218f3e8e15f96cb44c5fbc70c7ea20d6c962 (patch) | |
| tree | 7b9d0e6ece59dd8d456a1fb79006cd12cb8a607e /lib | |
| parent | 9b3bd467d02e73a02afed6d50aaaa149a6a69701 (diff) | |
add expand support for extractelement
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26931 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 041340ee53..6c2b188b38 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -826,7 +826,37 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { Tmp1 = LegalizeOp(Node->getOperand(0)); Tmp2 = LegalizeOp(Node->getOperand(1)); Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); - // FIXME: LOWER. + + switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, + Tmp1.getValueType())) { + default: assert(0 && "This action is not supported yet!"); + case TargetLowering::Legal: + break; + case TargetLowering::Custom: + Tmp3 = TLI.LowerOperation(Result, DAG); + if (Tmp3.Val) { + Result = Tmp3; + break; + } + // FALLTHROUGH + case TargetLowering::Expand: { + // If the target doesn't support this, store the value to a temporary + // stack slot, then LOAD the scalar element back out. + SDOperand StackPtr = CreateStackTemporary(Tmp1.getValueType()); + SDOperand Ch = DAG.getNode(ISD::STORE, MVT::Other, DAG.getEntryNode(), + Tmp1, StackPtr, DAG.getSrcValue(NULL)); + + // Add the offset to the index. + unsigned EltSize = MVT::getSizeInBits(Result.getValueType())/8; + Tmp2 = DAG.getNode(ISD::MUL, Tmp2.getValueType(), Tmp2, + DAG.getConstant(EltSize, Tmp2.getValueType())); + StackPtr = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, StackPtr); + + Result = DAG.getLoad(Result.getValueType(), Ch, StackPtr, + DAG.getSrcValue(NULL)); + break; + } + } break; case ISD::VEXTRACT_VECTOR_ELT: |