[llvm-bugs] [Bug 28400] [PM] Analysis invalidation when deleting IRUnitT's (in particular functions)

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=28400

Chandler Carruth <chandlerc at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from Chandler Carruth <chandlerc at gmail.com> ---
Looks like we have a winner. PoisoningVH was added in r292925 and used in
r292928. In the few places where it makes sense to retain this level of debug
assertions, this makes the code compatible with caching of analysis results. I
think this issue is now closed as all the workarounds are gone and my testing
so far looks very solid.

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