[all-commits] [llvm/llvm-project] 4df137: [SLP] Add tests for affine loop address computatio...

[Tim Besard via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4df13761d078a2f3c10c4ed7fab033df116b6cdc
      https://github.com/llvm/llvm-project/commit/4df13761d078a2f3c10c4ed7fab033df116b6cdc
  Author: Tim Besard <tim.besard at gmail.com>
  Date:   2026-09-28 (Mon, 28 Sep 2026)

  Changed paths:
    A llvm/test/Transforms/SLPVectorizer/X86/strength-reducible-address.ll

  Log Message:
  -----------
  [SLP] Add tests for affine loop address computations (NFC) (#226907)

Precommit tests for #226220: related affine address recurrences in a
loop whose index arithmetic SLP currently vectorizes and extracts per
lane for scalar loads and stores, which LSR would otherwise turn into
pointer increments.

`X86/strength-reducible-address.ll` has Haswell and skylake-avx512 RUN
lines. It covers strided loads, constant-offset GEPs, and a load/store
at the same address. The negative cases are loop-loaded offsets,
escaping addresses, and offsets computed in the preheader. The checks
are generated with current main.



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