[Bug tree-optimization/104665] Failure to recognize memcpy

[monad at posteo dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104665

--- Comment #2 from monad at posteo dot net ---
The full code including headers is:

#include <cstddef>
#include <cstdint>
#include <cstring>


void serialize_le(std::byte* __restrict dst, const std::uint32_t* __restrict
src)
{
    for (int i = 0; i < 32; ++i, ++src)
    {
        *dst++ = static_cast<std::byte>((*src >> 24) & 0xff);
        *dst++ = static_cast<std::byte>((*src >> 16) & 0xff);
        *dst++ = static_cast<std::byte>((*src >>  8) & 0xff);
        *dst++ = static_cast<std::byte>((*src >>  0) & 0xff);
    }
}