[all-commits] [llvm/llvm-project] 6f4375: [LV] Disable interleaving via hints for uncountabl...

[David Sherwood via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6f43754e9caa63cf2c63a74d9312acb3c113d45c
      https://github.com/llvm/llvm-project/commit/6f43754e9caa63cf2c63a74d9312acb3c113d45c
  Author: David Sherwood <david.sherwood at arm.com>
  Date:   2025-06-27 (Fri, 27 Jun 2025)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    A llvm/test/Transforms/LoopVectorize/single-early-exit-interleave-hint.ll

  Log Message:
  -----------
  [LV] Disable interleaving via hints for uncountable early exit loops (#145877)

Currently if the user enables interleaving during vectorisation of
uncountable early exit loops via the interleave_count pragma and the
enable-early-exit-vectorization option, it will miscompile. There is
ongoing work to fix this, but for now it seems safer to ignore the hint
until it is supported.

---------

Co-authored-by: Paul Walker <paul.walker at arm.com>



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