[PATCH] D107188: [SLP]Improve vectorization of split loads.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev created this revision.
ABataev added reviewers: RKSimon, spatel, anton-afanasyev, dtemirbulatov.
Herald added a subscriber: hiraditya.
ABataev requested review of this revision.
Herald added a project: LLVM.

Need to fix ther cost estimation for split loads, since we look at the
subregs already, no need to permute them, need just to estimate
subregister insert, if it is smaller than the real register. Also, using
split loads, it might be profitable already to vectorize smaller trees
with gathering of the loads.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D107188

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/AArch64/getelementptr.ll
  llvm/test/Transforms/SLPVectorizer/X86/schedule_budget.ll
  llvm/test/Transforms/SLPVectorizer/X86/split-load8_2-unord.ll
  llvm/test/Transforms/SLPVectorizer/X86/tiny-tree.ll

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