[PATCH] D155437: ValueTracking: Fix computeKnownFPClass canonicalize handling

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: jcranmer-intel, foad, kpn, sepavloff, andrew.w.kaylor.
Herald added subscribers: StephenFan, okura, kuter, hiraditya.
Herald added a project: All.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a reviewer: jdoerfert.
Herald added a reviewer: sstefan1.
Herald added a project: LLVM.

This mostly manifested as broken constant folding. This was
mishandling the dynamic denormal mode. It was also mishandling literal
signaling nans as always poison.


https://reviews.llvm.org/D155437

Files:
  llvm/lib/Analysis/ValueTracking.cpp
  llvm/test/Transforms/Attributor/nofpclass-canonicalize.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D155437.540941.patch
Type: text/x-patch
Size: 25498 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230717/7577a66b/attachment.bin>