[PATCH] D96642: [ValueTracking] Dereferenced pointers are noundef

[Juneyoung Lee via Phabricator via llvm-commits]

aqjune created this revision.
aqjune added reviewers: jdoerfert, xbolva00, nikic.
Herald added subscribers: okura, kuter, uenoku, jfb, arphaman, hiraditya.
Herald added a reviewer: uenoku.
aqjune requested review of this revision.
Herald added a reviewer: sstefan1.
Herald added a reviewer: baziotis.
Herald added subscribers: llvm-commits, bbn.
Herald added a project: LLVM.

This is a follow-up of D95238 <https://reviews.llvm.org/D95238>'s LangRef update.
This patch updates `programUndefinedIfUndefOrPoison(V)` to return true if
`V` is used by any memory-accessing instruction.
Interestingly, this affected many tests in Attributors, mainly about adding noundefs.
The tests are updated using llvm/utils/update_test_checks.py. I checked that the diffs
are about updating noundefs.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D96642

Files:
  llvm/include/llvm/Analysis/ValueTracking.h
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/test/Transforms/Attributor/ArgumentPromotion/2008-07-02-array-indexing.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/X86/attributes.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/X86/min-legal-vector-width.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/attrs.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/byval-2.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/dbg.ll
  llvm/test/Transforms/Attributor/ArgumentPromotion/tail.ll
  llvm/test/Transforms/Attributor/align.ll
  llvm/test/Transforms/Attributor/callbacks.ll
  llvm/test/Transforms/Attributor/chain.ll
  llvm/test/Transforms/Attributor/depgraph.ll
  llvm/test/Transforms/Attributor/dereferenceable-1.ll
  llvm/test/Transforms/Attributor/dereferenceable-2-inseltpoison.ll
  llvm/test/Transforms/Attributor/dereferenceable-2.ll
  llvm/test/Transforms/Attributor/heap_to_stack.ll
  llvm/test/Transforms/Attributor/internal-noalias.ll
  llvm/test/Transforms/Attributor/liveness.ll
  llvm/test/Transforms/Attributor/memory_locations.ll
  llvm/test/Transforms/Attributor/misc.ll
  llvm/test/Transforms/Attributor/misc_crash.ll
  llvm/test/Transforms/Attributor/noalias.ll
  llvm/test/Transforms/Attributor/nocapture-1.ll
  llvm/test/Transforms/Attributor/nocapture-2.ll
  llvm/test/Transforms/Attributor/nofree.ll
  llvm/test/Transforms/Attributor/nonnull.ll
  llvm/test/Transforms/Attributor/norecurse.ll
  llvm/test/Transforms/Attributor/nosync.ll
  llvm/test/Transforms/Attributor/range.ll
  llvm/test/Transforms/Attributor/read_write_returned_arguments_scc.ll
  llvm/test/Transforms/Attributor/readattrs.ll
  llvm/test/Transforms/Attributor/undefined_behavior.ll
  llvm/test/Transforms/Attributor/value-simplify.ll
  llvm/test/Transforms/InstSimplify/freeze.ll
  llvm/test/Transforms/OpenMP/parallel_deletion.ll

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