I haven't benchmarked it, but surprisingly that seems to be enough to get the gcc assembly almost identical to what clang is producing https://gcc.godbolt.org/z

I haven't benchmarked it, but surprisingly that seems to be enough to get the gcc assembly almost identical to what clang is producing https://gcc.godbolt.org/z/hfcYdP5rv https://gcc.godbolt.org/z/hfcYdP5rv