[PATCH] D121940: [SLP] Support internal users of splat loads

[Vasileios Porpodas via Phabricator via llvm-commits]

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Until now we would only accept a broadcast load pattern if it is only used
by a single vector of instructions.
This patch relaxes this, and allows for the broadcast to have more than one
user vector, as long as all of its uses are internal to the SLP graph and
vectorized.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121940

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/X86/lookahead.ll

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