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[Bug middle-end/64065] [5 Regression] CP2K miscompilation at -O3 -flto
- From: "rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 25 Nov 2014 13:23:50 +0000
- Subject: [Bug middle-end/64065] [5 Regression] CP2K miscompilation at -O3 -flto
- Auto-submitted: auto-generated
- References: <bug-64065-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64065
--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> ---
On Tue, 25 Nov 2014, Joost.VandeVondele at mat dot ethz.ch wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64065
>
> Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> changed:
>
> What |Removed |Added
> ----------------------------------------------------------------------------
> CC| |Joost.VandeVondele at mat dot ethz
> | |.ch
>
> --- Comment #2 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> ---
> (In reply to Richard Biener from comment #1)
> > That would be nice. Looking at the changes its either a latent issue
> > uncovered by inlining changes, my restrict change or my SCCVN change (which
> > might uncover a frontend bug - it did that for Java already).
>
> r218005: Fail
> r218004: OK
>
> Which makes it restrict changes, I guess.
:/
Might make it a bad interaction with the "special" support we have
for the Fortran frontend or a genuine bug. Not sure without
something more self-contained. But at least I'll think a bit more
about the LTO side of that change. Ah! A bug.