* H. J. Lu: > On Fri, Dec 31, 2021 at 12:43 PM Florian Weimer <f...@deneb.enyo.de> wrote: >> >> * H. J. Lu via Libc-alpha: >> >> > bzero is an alias of SSE2 memset in glibc. Should we add __memsetzero >> > like __memcmpeq? It should be almost free in glibc. GCC can use >> > __memsetzero if it is available. >> >> bzero does not have the interface ambiguity that bcmp has. So the >> only reason for not using it would be namespace cleanliness. > > bzero isn't a standard C function and it isn't optimized like memset > in glibc.
GCC already uses non-standard functions whose names are not implementation-defined for optimization purposes if a suitable prototype is available. stpcpy is an example, for: strcpy (a, b); return a + strlen (a);
