[PATCH] D99671: [ValueTracking] Add with.overflow intrinsics to poison analysis functions

[Juneyoung Lee via Phabricator via llvm-commits]

aqjune created this revision.
aqjune added reviewers: lebedev.ri, spatel.
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This is a patch that teaches ValueTracking that `s*.with.overflow` intrinsics does not
create undef/poison and they propagate poison.
I couldn't write a nice example as ctpop did; instead ValueTrackingTest.cpp were simply updated
to check these.
This patch helps reducing regression while fixing https://llvm.org/pr49688 .


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D99671

Files:
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/unittests/Analysis/ValueTrackingTest.cpp

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