[PATCH] D106872: [InstCombine] Remove nnan requirement for transformation to fabs from select

Krishna Kariya via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Jul 27 06:22:44 PDT 2021


Krishnakariya created this revision.
Krishnakariya added reviewers: spatel, nlopes, aqjune.
Herald added a subscriber: hiraditya.
Krishnakariya requested review of this revision.
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Herald added a subscriber: llvm-commits.

In this patch, the "nnan" requirement is removed for the canonicalization of select with fcmp to fabs. 
(i) Removed check for nnan in fsub/fneg. 
(ii) Removed check for nsz in fneg.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D106872

Files:
  llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
  llvm/test/Transforms/InstCombine/fabs.ll

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