http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50505
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-09-24
14:17:43 UTC ---
-mtune= accepts the same CPU names as -march=, and while (currently) there is
no difference between k8 and k8-sse3 tuning, for -march= it makes a difference
(-march=k8-sse3 is essentially -march=k8 -msse3). But -march=native or
-mtune=native is expanded by the driver which knows very well the underlying
compiler and knows those two are the same thing. If k8-sse3 tuning ever does
something different than k8 tuning, the driver would be obviously adjusted to
reflect that.
