[PATCH] D86361: [Attributor] fix AANoUndef initialization

[Shinji Okumura via Phabricator via llvm-commits]

okura created this revision.
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okura requested review of this revision.
Herald added a reviewer: sstefan1.
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Currently, `AANoUndefImpl::initialize` mistakenly always indicates optimistic fixpoint for function returned position.
 This is because an associated value is `Function` in the case, and `isGuaranteedNotToBeUndefOrPoison` returns true for Function.


https://reviews.llvm.org/D86361

Files:
  llvm/lib/Transforms/IPO/AttributorAttributes.cpp
  llvm/test/Transforms/Attributor/ArgumentPromotion/X86/thiscall.ll
  llvm/test/Transforms/Attributor/IPConstantProp/musttail-call.ll
  llvm/test/Transforms/Attributor/align.ll
  llvm/test/Transforms/Attributor/dereferenceable-1.ll
  llvm/test/Transforms/Attributor/heap_to_stack.ll
  llvm/test/Transforms/Attributor/memory_locations.ll
  llvm/test/Transforms/Attributor/noalias.ll
  llvm/test/Transforms/Attributor/nocapture-2.ll
  llvm/test/Transforms/Attributor/nonnull.ll
  llvm/test/Transforms/Attributor/returned.ll

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