[FFmpeg-cvslog] r12252 - trunk/configure

Michael Niedermayer michaelni
Wed Feb 27 00:38:10 CET 2008


..On Tue, Feb 26, 2008 at 10:39:50PM +0000, M?ns Rullg?rd wrote:
> michael <subversion at mplayerhq.hu> writes:
> 
> > Author: michael
> > Date: Tue Feb 26 23:01:11 2008
> > New Revision: 12252
> >
> > Log:
> > Make gcc ignore the distinction between +0.0 and -0.0, this allows it to
> > change x+0.0 to x. It does not allow gcc to remove x*0.0 though.
> 
> Would -ffinite-math-only help with this? 

yes


> It is of course risky to
> apply this globally, but if it is safe to compile specific files with
> this option (or others), that can be arranged.

Someone should first benchmark if it makes a difference, for that test
globally applying should be ok.

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Observe your enemies, for they first find out your faults. -- Antisthenes
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