This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Don't fold away division by zero (PR middle-end/66127)
- From: Steve Ellcey <sellcey at imgtec dot com>
- To: Marek Polacek <polacek at redhat dot com>
- Cc: Joseph Myers <joseph at codesourcery dot com>, Jakub Jelinek <jakub at redhat dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, Richard Biener <rguenther at suse dot de>
- Date: Thu, 14 May 2015 15:24:07 -0700
- Subject: Re: [PATCH] Don't fold away division by zero (PR middle-end/66127)
- Authentication-results: sourceware.org; auth=none
- References: <20150513191803 dot GG27320 at redhat dot com> <1431621764 dot 14613 dot 308 dot camel at ubuntu-sellcey> <1431623276 dot 14613 dot 310 dot camel at ubuntu-sellcey> <20150514172253 dot GO27320 at redhat dot com>
- Reply-to: <sellcey at imgtec dot com>
On Thu, 2015-05-14 at 19:22 +0200, Marek Polacek wrote:
> On Thu, May 14, 2015 at 10:07:56AM -0700, Steve Ellcey wrote:
> > Sorry for the noise, it looks like this failure is not related to any
> > recent changes in GCC. I still get the error in older GCC's so I think
> > something must have changed in glibc. I will start digging there.
>
> Yeah -- strict aliasing should be unrelated to the changes I've recently done
> in the C FE.
>
> Marek
FYI: I finally found the change that caused this failure, it is a GCC
patch after all. It starts with Richard's fix to PR middle-end/66110.
I sent some email to glibc but I am not sure (again) if we want to
change GCC or glibc.
https://sourceware.org/ml/libc-alpha/2015-05/msg00258.html
Steve Ellcey
sellcey@imgtec.com