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Summary: If malloc/realloc fails then the SmallVector becomes unusable since begin() and end() will return NULL. This is unlikely to occur but was the cause of recent bugpoint test failures on my machine. It is not clear whether not checking for malloc/realloc failure is a deliberate decision and adding checks has the potential to impact compiler performance. Therefore, this patch only adds the check to builds with assertions enabled for the moment. Reviewers: bkramer Reviewed By: bkramer Subscribers: bkramer, llvm-commits Differential Revision: http://reviews.llvm.org/D9520 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239392 91177308-0d34-0410-b5e6-96231b3b80d8
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