GCC-3 additions

Earnie Boyd earnie_boyd@yahoo.com
Sun Oct 14 06:02:00 GMT 2001

Danny Smith wrote:
>  --- Christopher Faylor <cgf@redhat.com> wrote: > On Sun, Oct 14, 2001 at
> 12:53:28PM +1000, Danny Smith wrote:
> > >1) How important is Donn Terry's -fnative-struct feature.  Merging his
> > >patchset from 2.95 into 3.0 branch is easy.  Merging into 3.1 takes a
> > bit
> > >more work, with change to table-driven attributes, but getting there.
> >
> > I've been using -fnative-struct for all of my cygwin DLL builds
> > recently.  Anecdotal evidence (from Earnie, maybe?) indicates that it
> > causes a noticeable speedup but I haven't really noticed anything
> > myself.
> >
> Nor have I.  It only effects structs with multiple bitfields, though, and
> only in some cases.

Uhm, IIRC the -fnative-struct feature aligns the structures so that MS
objects and GCC objects can be linked with one another.  But, I may be
mistaken, it's been more than a year or two.

As for the speed options, I use -march=i686 to speed it up as well as
-O3 which adds the inline functions option.


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