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Re: GCC-3 additions
- To: Danny Smith <danny_r_smith_2001 at yahoo dot co dot nz>
- Subject: Re: GCC-3 additions
- From: Earnie Boyd <earnie_boyd at yahoo dot com>
- Date: Sun, 14 Oct 2001 09:02:23 -0400
- CC: cygwin-apps at cygwin dot com
- References: <20011014043215.57603.qmail@web14504.mail.yahoo.com>
- Reply-To: CA List <Cygwin-Apps at Cygwin dot Com>
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.
Earnie.
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