[PATCH] D110978: [SLP]Improve gathering of the scals used in the graph.

[Alexey Bataev via Phabricator via llvm-commits]

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

Currently we emit gathers for scalars being vectorized in the tre as
a pair of extractelement/insertelement instructions. Instead we can try
to find all required vectors and emit shuffle vector instructions
directly, improving the code and reducing compile time.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D110978

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/AArch64/accelerate-vector-functions-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/accelerate-vector-functions.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/reorder-fmuladd-crash.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/transpose-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/transpose.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/vectorize-free-extracts-inserts.ll
  llvm/test/Transforms/SLPVectorizer/AMDGPU/add_sub_sat-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/AMDGPU/add_sub_sat.ll
  llvm/test/Transforms/SLPVectorizer/AMDGPU/crash_extract_subvector_cost.ll
  llvm/test/Transforms/SLPVectorizer/SystemZ/pr34619.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR35865-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR35865.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR39774.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-calls-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-calls.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-cast-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-cast.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-fp-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-fp.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-int-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-int.ll
  llvm/test/Transforms/SLPVectorizer/X86/arith-fp-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/arith-fp.ll
  llvm/test/Transforms/SLPVectorizer/X86/cmp_commute-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/cmp_commute.ll
  llvm/test/Transforms/SLPVectorizer/X86/crash_exceed_scheduling.ll
  llvm/test/Transforms/SLPVectorizer/X86/crash_lencod.ll
  llvm/test/Transforms/SLPVectorizer/X86/crash_smallpt.ll
  llvm/test/Transforms/SLPVectorizer/X86/extract-shuffle-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/extract-shuffle.ll
  llvm/test/Transforms/SLPVectorizer/X86/extract.ll
  llvm/test/Transforms/SLPVectorizer/X86/extractelement.ll
  llvm/test/Transforms/SLPVectorizer/X86/horizontal-minmax.ll
  llvm/test/Transforms/SLPVectorizer/X86/insert-element-build-vector-inseltpoison.ll
  llvm/test/Transforms/SLPVectorizer/X86/insert-element-build-vector.ll
  llvm/test/Transforms/SLPVectorizer/X86/insert-shuffle.ll
  llvm/test/Transforms/SLPVectorizer/X86/jumbled-load-used-in-phi.ll
  llvm/test/Transforms/SLPVectorizer/X86/jumbled-load.ll
  llvm/test/Transforms/SLPVectorizer/X86/lookahead.ll
  llvm/test/Transforms/SLPVectorizer/X86/matched-shuffled-entries.ll
  llvm/test/Transforms/SLPVectorizer/X86/partail.ll
  llvm/test/Transforms/SLPVectorizer/X86/phi.ll
  llvm/test/Transforms/SLPVectorizer/X86/pr47623.ll
  llvm/test/Transforms/SLPVectorizer/X86/pr49081.ll
  llvm/test/Transforms/SLPVectorizer/X86/reduction-logical.ll
  llvm/test/Transforms/SLPVectorizer/X86/remark_extract_broadcast.ll
  llvm/test/Transforms/SLPVectorizer/X86/shrink_after_reorder.ll
  llvm/test/Transforms/SLPVectorizer/X86/vectorize-reorder-alt-shuffle.ll
  llvm/test/Transforms/SLPVectorizer/X86/vectorize-widest-phis.ll
  llvm/test/Transforms/SLPVectorizer/slp-umax-rdx-matcher-crash.ll

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