[PATCH] D71435: [WIP] [Attributor] Function level undefined behavior attribute

[Stefanos Baziotis via Phabricator via llvm-commits]

baziotis updated this revision to Diff 234428.
baziotis added a comment.

Added basic tests. There's a FIXME because with "null-pointer-is-valid` attribute in the function, nullPointerIsDefined <https://llvm.org/doxygen/Function_8cpp_source.html#l01604> should return `true` and hence not put the instruction in `UBLoads` and not make the code unreachable.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D71435/new/

https://reviews.llvm.org/D71435

Files:
  llvm/include/llvm/Transforms/IPO/Attributor.h
  llvm/lib/Transforms/IPO/Attributor.cpp
  llvm/test/Transforms/Attributor/undefined_behavior.ll

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