Re: patch for -msse-math

[Jan Hubicka <jh at suse dot cz>]

> On Wed, Dec 12, 2001 at 09:20:59AM +0100, Jan Hubicka wrote:
> > > I wonder if we want a -mmath={387,sse} switch that could be
> > > extended to -mmath=3dnow in the future.
> > I would personally preffer -msse-math separately for simple purpose
> > that it makes sense: -m387-math -msse-math  =  use both units at once...
> 
> Another thing that I was thinking of was how to conserve our
> target_flags bits.  You could use -mmath=sse,387 to do both
> at once, though frankly I don't think many people will care
> for that option.
BTW for machines with split execution units for 387 and sse,
like Pentium4 have IMO, this is way to almost double the
fp performance in some cases.

Honza
> 
> 
> r~