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| author | Sanjiv Gupta <sanjiv.gupta@microchip.com> | 2008-11-26 11:19:00 +0000 |
|---|---|---|
| committer | Sanjiv Gupta <sanjiv.gupta@microchip.com> | 2008-11-26 11:19:00 +0000 |
| commit | 80810f8c6bc04d72c79bf195614ba91ad6cc1fa3 (patch) | |
| tree | 24efaaa4317f71c880aad293597779d98b0ce7e4 | |
| parent | 5b4e3b88eb790711a48b9f599b5b0ed2827cb20f (diff) | |
| download | bcm5719-llvm-80810f8c6bc04d72c79bf195614ba91ad6cc1fa3.tar.gz bcm5719-llvm-80810f8c6bc04d72c79bf195614ba91ad6cc1fa3.zip | |
Allow custom lowering of ADDE/ADDC/SUBE/SUBC operations.
llvm-svn: 60102
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 42 |
1 files changed, 36 insertions, 6 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 4400fed8fe0..78d03b7e8f5 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -3299,11 +3299,26 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { Tmp1 = LegalizeOp(Node->getOperand(0)); Tmp2 = LegalizeOp(Node->getOperand(1)); Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); + Tmp3 = Result.getValue(0); + Tmp4 = Result.getValue(1); + + switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { + default: assert(0 && "This action is not supported yet!"); + case TargetLowering::Legal: + break; + case TargetLowering::Custom: + Tmp1 = TLI.LowerOperation(Tmp3, DAG); + if (Tmp1.getNode() != NULL) { + Tmp3 = LegalizeOp(Tmp1);; + Tmp4 = LegalizeOp(Tmp1.getValue(1)); + } + break; + } // Since this produces two values, make sure to remember that we legalized // both of them. - AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); - AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); - return Result; + AddLegalizedOperand(SDValue(Node, 0), Tmp3); + AddLegalizedOperand(SDValue(Node, 1), Tmp4); + return Op.getResNo() ? Tmp4 : Tmp3; case ISD::ADDE: case ISD::SUBE: @@ -3311,11 +3326,26 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { Tmp2 = LegalizeOp(Node->getOperand(1)); Tmp3 = LegalizeOp(Node->getOperand(2)); Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); + Tmp3 = Result.getValue(0); + Tmp4 = Result.getValue(1); + + switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { + default: assert(0 && "This action is not supported yet!"); + case TargetLowering::Legal: + break; + case TargetLowering::Custom: + Tmp1 = TLI.LowerOperation(Tmp3, DAG); + if (Tmp1.getNode() != NULL) { + Tmp3 = LegalizeOp(Tmp1);; + Tmp4 = LegalizeOp(Tmp1.getValue(1)); + } + break; + } // Since this produces two values, make sure to remember that we legalized // both of them. - AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); - AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); - return Result; + AddLegalizedOperand(SDValue(Node, 0), Tmp3); + AddLegalizedOperand(SDValue(Node, 1), Tmp4); + return Op.getResNo() ? Tmp4 : Tmp3; case ISD::BUILD_PAIR: { MVT PairTy = Node->getValueType(0); |
