https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92716
--- Comment #1 from Julius Werner <jwerner at chromium dot org> ---
edit: Just noticed that when I implement it as
static inline unsigned int byteswap(unsigned int x)
{
return __builtin_bswap32(x);
}
instead, it is still compiled into the same single instruction, but then the
inlining works even with -Os. So I guess the decision to inline is made too
early in the optimization pipeline or something?
