[all-commits] [llvm/llvm-project] d6abc8: [LoopInterchange] Use UTC as much as possible (NFC...

[Ryotaro Kasuga via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: d6abc8f78de200e045ce3bdcb4cc57a7f1b7c5c6
      https://github.com/llvm/llvm-project/commit/d6abc8f78de200e045ce3bdcb4cc57a7f1b7c5c6
  Author: Ryotaro Kasuga <kasuga.ryotaro at fujitsu.com>
  Date:   2026-06-11 (Thu, 11 Jun 2026)

  Changed paths:
    M llvm/test/Transforms/LoopInterchange/confused-dependence.ll
    M llvm/test/Transforms/LoopInterchange/currentLimitation.ll
    M llvm/test/Transforms/LoopInterchange/debuginfo.ll
    M llvm/test/Transforms/LoopInterchange/force-interchange.ll
    M llvm/test/Transforms/LoopInterchange/fp-reductions.ll
    M llvm/test/Transforms/LoopInterchange/guarded-inner-loop.ll
    M llvm/test/Transforms/LoopInterchange/inner-only-reductions.ll
    M llvm/test/Transforms/LoopInterchange/interchange-insts-between-indvar.ll
    M llvm/test/Transforms/LoopInterchange/legality-for-scalar-deps.ll
    M llvm/test/Transforms/LoopInterchange/loopnest-with-outer-btc0.ll
    M llvm/test/Transforms/LoopInterchange/multilevel-partial-reduction.ll
    M llvm/test/Transforms/LoopInterchange/outer-dependency-lte.ll
    M llvm/test/Transforms/LoopInterchange/outer-only-reductions.ll
    M llvm/test/Transforms/LoopInterchange/pr43176-move-to-new-latch.ll
    M llvm/test/Transforms/LoopInterchange/pr43326-ideal-access-pattern.ll
    M llvm/test/Transforms/LoopInterchange/pr43326.ll
    M llvm/test/Transforms/LoopInterchange/pr48212.ll
    M llvm/test/Transforms/LoopInterchange/profitability-redundant-interchange.ll
    M llvm/test/Transforms/LoopInterchange/profitability-vectorization-heuristic.ll
    M llvm/test/Transforms/LoopInterchange/profitability-vectorization.ll
    M llvm/test/Transforms/LoopInterchange/reductions-across-inner-and-outer-loop.ll
    M llvm/test/Transforms/LoopInterchange/reductions-non-wrapped-operations.ll

  Log Message:
  -----------
  [LoopInterchange] Use UTC as much as possible (NFC) (#202096)

Historically, the loop-interchange tests have relied heavily on checks
via pass remarks. This is because pass remarks are more human-readable
than the CHECK directives generated by UTC. However, during recent
development, I found some downsides:

- Updating them manually is a bit tedious.
- We need to carefully keep the remarks and the code consistent with
each other. In other words, we don't have any way to verify whether the
remarks themselves are reasonable.

For these reasons, I now think it makes more sense to rely on UTC as
much as possible, and this patch does that. Some tests are left as-is,
e.g., the test for checking remarks.

Disclosure: This patch is assisted-by Claude Code.



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