[all-commits] [llvm/llvm-project] f722db: [libc++] Use correct size for deallocation of arra...

[Ilya Biryukov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f722db02d359e29ca001b78197ee1a275f8c3d7c
      https://github.com/llvm/llvm-project/commit/f722db02d359e29ca001b78197ee1a275f8c3d7c
  Author: Ilya Biryukov <ibiryukov at google.com>
  Date:   2023-10-05 (Thu, 05 Oct 2023)

  Changed paths:
    M libcxx/include/__memory/shared_ptr.h
    A libcxx/test/libcxx/memory/shared_ptr_array.pass.cpp

  Log Message:
  -----------
  [libc++] Use correct size for deallocation of arrays in shared_ptr (#68233)

Fixes #68051.

Current implementation passes the number of `_AlignedStorage` objects
when it calls to `allocate` and the number of **bytes** on `deallocate`.
This only applies to allocations that allocate control block and the
storage together, i.e. `make_shared` and `allocate_shared`.

Found by ASan under Clang combined with `-fsized-deallocation`.