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LegalizeSetCCOperands() may end up inserting libcalls. They need to be
properly serialized. Do not clear LastCallSEQ_END until that is done. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32659 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1360,14 +1360,13 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
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// Ensure that libcalls are emitted before a branch.
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Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END);
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Tmp1 = LegalizeOp(Tmp1);
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LastCALLSEQ_END = DAG.getEntryNode();
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Tmp2 = Node->getOperand(2); // LHS
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Tmp3 = Node->getOperand(3); // RHS
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Tmp4 = Node->getOperand(1); // CC
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LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4);
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LastCALLSEQ_END = DAG.getEntryNode();
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// If we didn't get both a LHS and RHS back from LegalizeSetCCOperands,
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// the LHS is a legal SETCC itself. In this case, we need to compare
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// the result against zero to select between true and false values.
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