[all-commits] [llvm/llvm-project] 3c2107: [NFC][libc][malloc] Refactor Block (#100445)

[Daniel Thornburgh via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3c210740649a538d2fc2432395f2ef41c56dc8b6
      https://github.com/llvm/llvm-project/commit/3c210740649a538d2fc2432395f2ef41c56dc8b6
  Author: Daniel Thornburgh <dthorn at google.com>
  Date:   2024-07-25 (Thu, 25 Jul 2024)

  Changed paths:
    M libc/src/__support/block.h
    M libc/src/__support/freelist_heap.h
    M libc/test/src/__support/block_test.cpp

  Log Message:
  -----------
  [NFC][libc][malloc] Refactor Block (#100445)

This decreases the surface area of the block implementation in
preparation for deeper changes to its implementation.

See #98096 

- Remove dead member functions.
- Remove last() check from next(), as described in its comment.
- Rework object lifetimes such that only block headers are actually
considered live. This simplifies their implementation.
- The allocated storage becomes live at the outer call to malloc-family
functions via a special case in the C++ standard.
- Add asserts for flag properties required by the implementation.
- Remove static from member functions that don't invalidate the block.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications