e0cce5cdcb
The code for `memcpy` is the same as in #148204 but it fixes the build bot error by using `static_assert(cpp::always_false<decltype(access)>)` instead of `static_assert(false)` (older compilers fails on `static_assert(false)` in `constexpr` `else` bodies). The code for `memset` is new and vastly improves performance over the current byte per byte implementation. Both `memset` and `memcpy` implementations use prefetching for sizes >= 64. This lowers a bit the performance for sizes between 64 and 256 but improves throughput for greater sizes.
LLVM libc ========= This directory and its subdirectories contain source code for llvm-libc, a retargetable implementation of the C standard library. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.