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3ac929c473
The original code had an implicit assumption that if the test for allocas or globals was reached, the two pointers were not equal. With my changes to make the pointer analysis more powerful here, I also had to guard against circumstances where the results weren't useful. That in turn violated the assumption and gave rise to a circumstance in which we could have a store with both the queried pointer and stored pointer rooted at *the same* alloca. Clearly, we cannot ignore such a store. There are other things we might do in this code to better handle the case of both pointers ending up at the same alloca or global, but it seems best to at least make the test explicit in what it intends to check. I've added tests for both the alloca and global case here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220190 91177308-0d34-0410-b5e6-96231b3b80d8 |
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