[all-commits] [llvm/llvm-project] 46c842: [mlir][transform] change RaggedArray internals

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  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 46c8422d833ba69a157199c26955a5faaada2927
      https://github.com/llvm/llvm-project/commit/46c8422d833ba69a157199c26955a5faaada2927
  Author: Alex Zinenko <zinenko at google.com>
  Date:   2023-03-16 (Thu, 16 Mar 2023)

  Changed paths:
    M mlir/include/mlir/Dialect/Transform/Utils/RaggedArray.h

  Log Message:
  -----------
  [mlir][transform] change RaggedArray internals

Change the internal storage scheme from storing a MutableArrayRef to
storing an explicit offset+length pair. Storing an ArrayRef is dangerous
because it contains the pointer to the first element in the range, but
the entire storage vector may be reallocated, making the pointer
dangling. We don't know when the reallocation happends, so we can't
update the ArrayRefs. Store the explicit offset instead and construct
ArrayRefs on-the-fly.

Reviewed By: Peiming

Differential Revision: https://reviews.llvm.org/D146239