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Re: FYI: Latest gcc-8 snapshot gives ICE with later isl's
- From: Donald Parsons <dparsons at brightdsl dot net>
- To: Marek Polacek <polacek at redhat dot com>
- Cc: gcc at gcc dot gnu dot org, Richard Ellison <richard_ellison at mac dot com>
- Date: Tue, 06 Mar 2018 00:02:27 -0500
- Subject: Re: FYI: Latest gcc-8 snapshot gives ICE with later isl's
- Authentication-results: sourceware.org; auth=none
- References: <1520272703.14864.6.camel@brightdsl.net> <20180305180455.GU16833@redhat.com>
On Mon, 2018-03-05 at 19:04 +0100, Marek Polacek wrote:
> On Mon, Mar 05, 2018 at 12:58:23PM -0500, Donald Parsons wrote:
> >
> > I am getting ICE bootstrapping gcc-8-20180304.tar.xz when using
> > either
> > isl-0.18 or isl-0.19. I had never had a problem using latest isl
> > over
> > the past couple of years, so a change in gcc last week introduced
> > the
> > problem.
> >
...
> I bet this is https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84670
> which is already
> fixed.
>
> Marek
> Adding Richard Biener to cc.
>
> Marek, thanks for the heads up. I applied the patch from the
> bugzilla but it still fails to bootstrap with same ICE error,
> only line numbers changes by about 4. (isl-0.19 was used in
> this case)
I'm sorry I missed the main patch in the bugzilla. Fully patching
"tree-ssa-pre.c" correctly, allows gcc to bootstrap without errors
when using isl-0.19 (and undoubtedly isl-0.18 too)
Sorry for the extra noise!
Thanks,
Don