[PATCH] D126877: [SLP]Fix PR55734: SLP vectorizer's reduce_and formation introduces poison.

[Alexey Bataev via Phabricator via llvm-commits]

ABataev updated this revision to Diff 441783.
ABataev added a comment.
Herald added subscribers: kosarev, kerbowa, jvesely.

Reworked addition of the reduction. For logical ops, reduction result is added as a first operand,
it is safe to use it as an LHS in scalar logical ands/ors.
For others, it is added as a last operand.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D126877/new/

https://reviews.llvm.org/D126877

Files:
  llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
  llvm/test/Transforms/SLPVectorizer/AArch64/gather-root.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/horizontal.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/slp-and-reduction.ll
  llvm/test/Transforms/SLPVectorizer/AArch64/slp-xor-reduction.ll
  llvm/test/Transforms/SLPVectorizer/AMDGPU/horizontal-store.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR35628_1.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR35628_2.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR39774.ll
  llvm/test/Transforms/SLPVectorizer/X86/PR40310.ll
  llvm/test/Transforms/SLPVectorizer/X86/alternate-cmp-swapped-pred.ll
  llvm/test/Transforms/SLPVectorizer/X86/bool-mask.ll
  llvm/test/Transforms/SLPVectorizer/X86/compare-reduce.ll
  llvm/test/Transforms/SLPVectorizer/X86/crash_reordering_undefs.ll
  llvm/test/Transforms/SLPVectorizer/X86/gather-extractelements-different-bbs.ll
  llvm/test/Transforms/SLPVectorizer/X86/horizontal-list.ll
  llvm/test/Transforms/SLPVectorizer/X86/horizontal-minmax.ll
  llvm/test/Transforms/SLPVectorizer/X86/horizontal.ll
  llvm/test/Transforms/SLPVectorizer/X86/malformed_phis.ll
  llvm/test/Transforms/SLPVectorizer/X86/reduction-logical.ll
  llvm/test/Transforms/SLPVectorizer/X86/reduction-transpose.ll
  llvm/test/Transforms/SLPVectorizer/X86/reduction_loads.ll
  llvm/test/Transforms/SLPVectorizer/X86/remark_horcost.ll
  llvm/test/Transforms/SLPVectorizer/X86/reorder_repeated_ops.ll
  llvm/test/Transforms/SLPVectorizer/X86/revectorized_rdx_crash.ll
  llvm/test/Transforms/SLPVectorizer/X86/scheduling.ll
  llvm/test/Transforms/SLPVectorizer/X86/slp-fma-loss.ll
  llvm/test/Transforms/SLPVectorizer/X86/undef_vect.ll
  llvm/test/Transforms/SLPVectorizer/X86/used-reduced-op.ll
  llvm/test/Transforms/SLPVectorizer/slp-umax-rdx-matcher-crash.ll

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