This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: -fnew-ra -- which architectures?
- From: Daniel Berlin <dberlin at dberlin dot org>
- To: Falk Hueffner <falk dot hueffner at student dot uni-tuebingen dot de>
- Cc: gcc at gcc dot gnu dot org
- Date: Mon, 15 Jul 2002 19:45:52 -0400 (EDT)
- Subject: Re: -fnew-ra -- which architectures?
On Mon, 15 Jul 2002, Daniel Berlin wrote:
> On 16 Jul 2002, Falk Hueffner wrote:
>
> > Daniel Berlin <dberlin@dberlin.org> writes:
> >
> > > On 16 Jul 2002, Falk Hueffner wrote:
> > >
> > > > internal compiler error: Internal compiler error in check_df, at ra.c:629
> > > > and
> > > > internal compiler error: Internal compiler error in check_df, at ra.c:637
> > >
> > > Yeah, these aren't new-ra problems, they are df.c problems.
> > >
> > > ALl the df changes from the new-regalloc-branch haven't been
> > > reviewed/committed yet.
> > > The one that fixes the above is (reversed, since i diffed new-ra to head,
> > > rather than head to new-ra):
> >
> > Thanks, this fixes the problem. Improvements are moderate on my test
> > case, though:
> >
> > number of stack writes
> > gcc -O1 0
> > Compaq Compiler 11 (the caller saved registers)
> > gcc -O3 119
> > gcc -O3 -fnew-ra 101
> >
> > Are you interested in the test case?
> SUre, if course like, though a 20% reduction is nothing to sneeze at.
>
s/course/you/