[all-commits] [llvm/llvm-project] b659b7: [libc] Some clean work with memmove.

[ChennngWang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b659b789c03ac339e28d7b91406b67bb887a426d
      https://github.com/llvm/llvm-project/commit/b659b789c03ac339e28d7b91406b67bb887a426d
  Author: Cheng Wang <chennngwang at gmail.com>
  Date:   2021-09-10 (Fri, 10 Sep 2021)

  Changed paths:
    M libc/src/string/CMakeLists.txt
    M libc/src/string/memmove.cpp
    M libc/test/src/string/memmove_test.cpp

  Log Message:
  -----------
  [libc] Some clean work with memmove.

- Replace `move_byte_forward()` with `memcpy`. In `memcpy` implementation,
it copies bytes forward from beginning to end. Otherwise, `memmove` unit
tests will break.
- Make `memmove` unit tests work.

Reviewed By: gchatelet

Differential Revision: https://reviews.llvm.org/D109316