[all-commits] [llvm/llvm-project] 236e0e: [SROA] Remove splitSliceTails loop in presplitLoad...

[John Brawn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 236e0ee3d763814d16b3d7947ba740fe4d4e31be
      https://github.com/llvm/llvm-project/commit/236e0ee3d763814d16b3d7947ba740fe4d4e31be
  Author: John Brawn <john.brawn at arm.com>
  Date:   2026-09-29 (Tue, 29 Sep 2026)

  Changed paths:
    M llvm/lib/Transforms/Scalar/SROA.cpp
    M llvm/test/Transforms/SROA/load-store-overlap.ll

  Log Message:
  -----------
  [SROA] Remove splitSliceTails loop in presplitLoadsAndStores (#227061)

The asserts in this loop can trigger when we presplit an overlapping
load/store pair, and the extra splits it adds don't appear to have any
benefit: we only get them when we have an unsplittable slice that's
fully enclosed inside a splittable slice, and in the test I've managed
to create for this (no_move_enclosed_unsplittable_store, and there are
no existing tests for this) the final SROA output is the same (except
that the variables end up with different names).



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