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Make sure to update the CFG correctly if a switch only has a default dest.

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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
This commit is contained in:
Chris Lattner 2006-06-12 18:25:29 +00:00
parent 1398421ccf
commit a3bb86dd6b
1 changed files with 1 additions and 0 deletions
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lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -869,6 +869,7 @@ void SelectionDAGLowering::visitSwitch(SwitchInst &I) {
if (DefaultMBB != NextBlock)
DAG.setRoot(DAG.getNode(ISD::BR, MVT::Other, getRoot(),
DAG.getBasicBlock(DefaultMBB)));
CurMBB->addSuccessor(DefaultMBB);
return;
}