On 2 September 2015 at 12:10, Mason wrote: > On 02/09/2015 12:13, Jonathan Wakely wrote: > >> On 2 September 2015 at 08:43, Mason wrote: >>> Is there a way to say: >>> "Use any instruction available for this uarch, but optimize code >>> for this other uarch / class of uarches (mtune=generic)" ?? >> >> Yes, just use both -march and -mtune. e.g. >> >> -march=pentium3 -mtune-generic > > The doc states: > > "Specifying -march=cpu-type implies -mtune=cpu-type." > > Are you suggesting that -mtune can later be overridden? Yes. > In which case order matters (-march first, then -mtune) right? Yes.
