diff options
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 283b46ec10..612e3e14aa 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1113,12 +1113,30 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { Tmp4 = LegalizeOp(Node->getOperand(3)); // False if (isTypeLegal(Node->getOperand(0).getValueType())) { - Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS - Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS - if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || - Tmp3 != Node->getOperand(2) || Tmp4 != Node->getOperand(3)) { - Result = DAG.getNode(ISD::SELECT_CC, Node->getValueType(0), Tmp1, Tmp2, - Tmp3, Tmp4, Node->getOperand(4)); + // Everything is legal, see if we should expand this op or something. + switch (TLI.getOperationAction(ISD::SELECT_CC, + Node->getOperand(0).getValueType())) { + default: assert(0 && "This action is not supported yet!"); + case TargetLowering::Custom: { + SDOperand Tmp = + TLI.LowerOperation(DAG.getNode(ISD::SELECT_CC, Node->getValueType(0), + Node->getOperand(0), + Node->getOperand(1), Tmp3, Tmp4, + Node->getOperand(5)), DAG); + if (Tmp.Val) { + Result = LegalizeOp(Tmp); + break; + } + } // FALLTHROUGH if the target can't lower this operation after all. + case TargetLowering::Legal: + Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS + Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS + if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1) || + Tmp3 != Node->getOperand(2) || Tmp4 != Node->getOperand(3)) { + Result = DAG.getNode(ISD::SELECT_CC, Node->getValueType(0), Tmp1, Tmp2, + Tmp3, Tmp4, Node->getOperand(4)); + } + break; } break; } else { |