[PATCH] D84242: [ValueTracking] Add UndefOrPoison/Poison-only version of relevant functions

[Juneyoung Lee via Phabricator via llvm-commits]

aqjune updated this revision to Diff 290397.
aqjune added a comment.

Rebase, and have a few changes to maximally utilize `noundef` attributes.
programUndefinedIfUndefOrPoison(I) is updated in a way that it returns true
if `I` is partially undef.
For example, the updated programUndefinedIfUndefOrPoison(I) returns true in this case:

  %I = or i32 x, 1 ; if x = undef, %I is partially undef
  call void @f(i32 noundef %I)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D84242/new/

https://reviews.llvm.org/D84242

Files:
  llvm/include/llvm/Analysis/ValueTracking.h
  llvm/lib/Analysis/ScalarEvolution.cpp
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/lib/Transforms/Instrumentation/PoisonChecking.cpp
  llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
  llvm/unittests/Analysis/ValueTrackingTest.cpp

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