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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/65450] [5.0 Regression]: Unaligned access with -O3 -mtune=k8
Date: Tue, 17 Mar 2015 10:22:00 -0000 [thread overview]
Message-ID: <bug-65450-4-5Uo5mrTiga@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-65450-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65450
--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Uroš Bizjak from comment #0)
> The compiler generates unaligned access for Polyhedron channel.f90 test when
> compiled with -O2 -mtune=k8:
Whoops, this should read "-O3 -mtune=k8".
>
> /home/uros/gcc-build/gcc/gfortran -B/home/uros/gcc-build/gcc
> -B/home/uros/gcc-build/x86_64-unknown-linux-gnu/libgfortran/
> -B/home/uros/gcc-build/x86_64-unknown-linux-gnu/libquadmath/.libs
> -L/home/uros/gcc-build/x86_64-unknown-linux-gnu/libgfortran/.libs
> -L-L/home/uros/gcc-build/x86_64-unknown-linux-gnu/libquadmath/.libs -O2
> -ffast-math -mtune=k8 channel.f90
And here. Correct flags are "-O3 -mtune=k8". Everything reported is compiled
with these two flags only.
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From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/65450] [5.0 Regression]: Unaligned access with -O3 -mtune=k8
Date: Tue, 17 Mar 2015 10:25:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide450
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-03-17
Ever confirmed|0 |1
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Confirmed: see comment 3.
next prev parent reply other threads:[~2015-03-17 10:22 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-17 9:37 [Bug fortran/65450] New: " ubizjak at gmail dot com
2015-03-17 9:38 ` [Bug fortran/65450] " ubizjak at gmail dot com
2015-03-17 10:00 ` ubizjak at gmail dot com
2015-03-17 10:14 ` dominiq at lps dot ens.fr
2015-03-17 10:22 ` ubizjak at gmail dot com [this message]
2015-03-17 10:39 ` jakub at gcc dot gnu.org
2015-03-17 12:42 ` trippels at gcc dot gnu.org
2015-03-17 12:44 ` trippels at gcc dot gnu.org
2015-03-17 12:57 ` dominiq at lps dot ens.fr
2015-03-17 13:24 ` jakub at gcc dot gnu.org
2015-03-17 14:15 ` [Bug fortran/65450] [4.9 5.0 " ubizjak at gmail dot com
2015-03-17 18:06 ` [Bug fortran/65450] [4.9/5 " jakub at gcc dot gnu.org
2015-03-17 21:29 ` jakub at gcc dot gnu.org
2015-03-18 9:00 ` jakub at gcc dot gnu.org
2015-03-18 10:49 ` [Bug tree-optimization/65450] " jakub at gcc dot gnu.org
2015-03-18 11:33 ` rguenth at gcc dot gnu.org
2015-03-18 13:29 ` rguenth at gcc dot gnu.org
2015-03-18 13:54 ` jakub at gcc dot gnu.org
2015-03-18 13:56 ` [Bug tree-optimization/65450] [4.9 " jakub at gcc dot gnu.org
2015-06-03 15:28 ` jakub at gcc dot gnu.org
2015-06-03 21:43 ` jakub at gcc dot gnu.org
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