Why -mtune=atom?

Bill Nottingham notting at splat.cc
Thu Mar 12 14:39:54 UTC 2015

Florian Weimer (fweimer at redhat.com) said: 
> The default CFLAGS set by RPM include “-mtune-atom”.
> Why?  I doubt Atom CPUs are Fedora's primary target.  It's not even a
> documented GCC option.  There is such a wide variety of CPUs under this
> label that it's not even clear what it would mean.
> If it's better than “-mtune=generic” or the GCC default, shouldn't GCC
> be fixed?


(Yes, it's possible things have changed - benchmarks would be welcome.)


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