[PATCH] D109049: [SLP] Support llvm.isnan in vectorizer

[Serge Pavlov via Phabricator via llvm-commits]

sepavloff created this revision.
sepavloff added reviewers: RKSimon, ABataev, fhahn, spatel, bjope.
Herald added subscribers: dexonsmith, hiraditya.
sepavloff requested review of this revision.
Herald added a project: LLVM.

This change adds `llvm.isnan` to the set of trivially vectorizable
intrinsic functions. This function differs from other functions by
signature, so processing `Call` instruction in `vectorizeTree` was
changed so that overloaded argument types of intrinsic functions were
restored using information from intrinsic description tables.

This change fixes PR51556 (Failure to vectorize llvm.isnan calls).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109049

Files:
  llvm/include/llvm/IR/Intrinsics.h
  llvm/lib/Analysis/VectorUtils.cpp
  llvm/lib/IR/Function.cpp
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/X86/intrinsic.ll

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