On 19 October 2016 at 16:56, Markus Trippelsdorf <mar...@trippelsdorf.de> wrote: > On 2016.10.19 at 08:55 -0700, Linus Torvalds wrote: >> On Wed, Oct 19, 2016 at 8:37 AM, Markus Trippelsdorf >> <mar...@trippelsdorf.de> wrote: >> > >> > This is a gcc bug, see: >> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72785 >> >> Well, in the meantime we apparently have to live with it. Unless Will >> is using some unreleased gcc version that nobody else is using and we >> can just ignore it? > > Yes, he is using gcc-7 that is unreleased. (It will be released April > next year.) >
order_base_2() is still broken though, given that it is documented as * The first few values calculated by this routine: * ob2(0) = 0 * ob2(1) = 0 * ob2(2) = 1 * ob2(3) = 2 * ob2(4) = 2 * ob2(5) = 3 whereas order_base_2(0) actually ends up invoking roundup_pow_of_two(0), which is documented as being undefined.
