https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110094
Bug ID: 110094
Summary: Support __builtin_mem*_inline
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: i at maskray dot me
Target Milestone: ---
Clang introduced `__builtin_memcpy_inline` (https://reviews.llvm.org/D73543) in
2020 and `__builtin_memset_inline` (https://reviews.llvm.org/D126903) in 2022.
The two builtin functions expand memcpy/memset and guarantee that no external
functions are called. [1]
Past GCC discussion:
https://gcc.gnu.org/pipermail/gcc-patches/2022-December/609138.html ("[RFC]
Introduce -finline-memset-loops").
[1]: There are some unhandled cases due to re-combining like
https://github.com/llvm/llvm-project/issues/56876
