Why -mtune=atom?

Florian Weimer fweimer at redhat.com
Thu Mar 12 13:02:53 UTC 2015

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?

Florian Weimer / Red Hat Product Security

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