[all-commits] [llvm/llvm-project] 544171: [LoopSafetyInfo] Store Loop and automatically comp...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 544171da142fd5a380a943c9f7ea5150b9f2a293
      https://github.com/llvm/llvm-project/commit/544171da142fd5a380a943c9f7ea5150b9f2a293
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2026-09-07 (Mon, 07 Sep 2026)

  Changed paths:
    M llvm/include/llvm/Analysis/MustExecute.h
    M llvm/lib/Analysis/MustExecute.cpp
    M llvm/lib/Transforms/Scalar/LICM.cpp
    M llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp
    M llvm/lib/Transforms/Scalar/SimpleLoopUnswitch.cpp
    M llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp
    M llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp

  Log Message:
  -----------
  [LoopSafetyInfo] Store Loop and automatically compute (NFC) (#221238)

This makes two changes:

* LoopSafetyInfo is bound to a single loop. Store the Loop in the ctor,
so it does not need to be passed to individual queries.
* Automatically compute LoopSafetyInfo on construction, instead of in a
separate call. This is mostly to clarify that (contrary to the doc
comment) nobody is actually trying to invalidate LoopSafetyInfo by
rerunning computeLoopSafetyInfo().

This makes it easier to change implementation details, like computing
information lazily.



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