Avoid inifinite looping if READCYCLECOUNTER isn't custom lowered.
llvm-svn: 32022
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@ -1850,16 +1850,21 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
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switch (TLI.getOperationAction(ISD::READCYCLECOUNTER,
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switch (TLI.getOperationAction(ISD::READCYCLECOUNTER,
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Node->getValueType(0))) {
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Node->getValueType(0))) {
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default: assert(0 && "This action is not supported yet!");
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default: assert(0 && "This action is not supported yet!");
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case TargetLowering::Legal: break;
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case TargetLowering::Legal:
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Tmp1 = Result.getValue(0);
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Tmp2 = Result.getValue(1);
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break;
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case TargetLowering::Custom:
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case TargetLowering::Custom:
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Result = TLI.LowerOperation(Result, DAG);
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Result = TLI.LowerOperation(Result, DAG);
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Tmp1 = LegalizeOp(Result.getValue(0));
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Tmp2 = LegalizeOp(Result.getValue(1));
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break;
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break;
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}
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}
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// Since rdcc produce two values, make sure to remember that we legalized
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// Since rdcc produce two values, make sure to remember that we legalized
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// both of them.
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// both of them.
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AddLegalizedOperand(SDOperand(Node, 0), LegalizeOp(Result.getValue(0)));
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AddLegalizedOperand(SDOperand(Node, 0), Tmp1);
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AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Result.getValue(1)));
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AddLegalizedOperand(SDOperand(Node, 1), Tmp2);
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return Result;
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return Result;
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case ISD::SELECT:
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case ISD::SELECT:
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