[all-commits] [llvm/llvm-project] cad62d: [Loads] Support dereferenceable assumption with va...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: cad62df49a79df5e5136cfad280c5abc9f62c60b
      https://github.com/llvm/llvm-project/commit/cad62df49a79df5e5136cfad280c5abc9f62c60b
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2025-07-14 (Mon, 14 Jul 2025)

  Changed paths:
    M llvm/include/llvm/Analysis/AssumeBundleQueries.h
    M llvm/lib/Analysis/AssumeBundleQueries.cpp
    M llvm/lib/Analysis/Loads.cpp
    M llvm/lib/IR/Verifier.cpp
    A llvm/test/Transforms/LoopVectorize/dereferenceable-info-from-assumption-variable-size.ll
    M llvm/test/Transforms/LoopVectorize/early_exit_store_legality.ll
    M llvm/test/Transforms/LoopVectorize/single-early-exit-deref-assumptions.ll
    M llvm/test/Verifier/assume-bundles.ll

  Log Message:
  -----------
  [Loads] Support dereferenceable assumption with variable size. (#128436)

Update isDereferenceableAndAlignedPointer to make use of dereferenceable
assumptions with variable sizes via SCEV.

To do so, factor out the logic to check via an assumption to a helper,
and use SE to check if the access size is less than the dereferenceable
size.

PR: https://github.com/llvm/llvm-project/pull/128436



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