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Make sure to update the CFG correctly if a switch only has a default dest.
This fixes CodeGen/Generic/2006-06-12-LowerSwitchCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28755 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -869,6 +869,7 @@ void SelectionDAGLowering::visitSwitch(SwitchInst &I) {
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if (DefaultMBB != NextBlock)
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DAG.setRoot(DAG.getNode(ISD::BR, MVT::Other, getRoot(),
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DAG.getBasicBlock(DefaultMBB)));
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CurMBB->addSuccessor(DefaultMBB);
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return;
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}
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