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Re: Apple's -fast option for gcc
Mike Stump wrote:
-fast is very, very small. It just turns on 5-25 other, existing
flags. There isn't a reason why it could not be contributed. Do others
want it? It is _good_ for SPEC.
The set of options that gives best performance on SPEC for a PPC970 is
unlikely to be right for other targets or for other programs. So what
exactly does -fast mean when that is considered? How do we choose which
options to include? Apple probably doesn't want to sacrifice SPEC
performance to make the option useful to others, so perhaps it makes
more sense to rename it to something like -mfast-spec to make it clear
that it is target dependent, and is the set of options that is known to
give best SPEC performance.
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com