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Summary: replaceAllUsesWith had been modified to allow a DbgNode value to be replaced by itself. In that case a new node is created by copying the current DbgNode and the copy is used as replacement value. When that copying happens, the value stored in this->DbgNode at the end of RAUW would be a reference to the Node that has just been deleted. This doesn't produce any bug right now, because the DI node on which we call RAUW won't be used again. Reviewers: dblaikie, echristo, aprantl Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D5326 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217749 91177308-0d34-0410-b5e6-96231b3b80d8
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