diff options
| author | Nate Begeman <natebegeman@mac.com> | 2005-10-18 00:27:41 +0000 |
|---|---|---|
| committer | Nate Begeman <natebegeman@mac.com> | 2005-10-18 00:27:41 +0000 |
| commit | 419f8b62f73541dd783aa98c9eda6e483a487d51 (patch) | |
| tree | 279eef342866645afb3cd15f7418b4a567da20d1 | |
| parent | d41abfa1d2eb870a120df00154cee2df5f58fc6f (diff) | |
Legalize BUILD_PAIR appropriately for upcoming 64 bit PowerPC work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23776 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 8c7f761f83..f97032565f 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1605,6 +1605,31 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { Result = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1,Tmp2); break; + case ISD::BUILD_PAIR: { + MVT::ValueType PairTy = Node->getValueType(0); + // TODO: handle the case where the Lo and Hi operands are not of legal type + Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo + Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi + switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { + case TargetLowering::Legal: + if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) + Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); + break; + case TargetLowering::Promote: + case TargetLowering::Custom: + assert(0 && "Cannot promote/custom this yet!"); + case TargetLowering::Expand: + Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); + Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); + Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, + DAG.getConstant(MVT::getSizeInBits(PairTy)/2, + TLI.getShiftAmountTy())); + Result = LegalizeOp(DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2)); + break; + } + break; + } + case ISD::UREM: case ISD::SREM: case ISD::FREM: |