On Tue, 2012-04-24 at 10:17 -0700, H. Peter Anvin wrote: > On 04/24/2012 09:36 AM, Peter Zijlstra wrote: > > On Tue, 2012-04-24 at 09:34 -0700, H. Peter Anvin wrote: > >> On 04/24/2012 09:10 AM, Peter Zijlstra wrote: > >> > >> Are you sure that gcc won't simply generate this code already if given > >> "unsigned __int128"? > > > > It might, but I've been told some GCC versions had issues, also lots of > > archs fall back to libgcc functions. > > > > Yes, but this is specific to x86-64. If gcc can generate the code it > can also schedule the code, which it can't for assembly... Ok, but are you sure unsigned __int128 works for all gcc versions we support? -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
