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From: "ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/60092] posix_memalign not recognized to derive alias and alignment info
Date: Fri, 14 Feb 2014 16:40:00 -0000 [thread overview]
Message-ID: <bug-60092-4-Jsi0N7DnU1@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-60092-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60092
--- Comment #23 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> ---
> --- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> (In reply to Rainer Orth from comment #21)
>> The new test FAILs on Solaris 11 (both SPARC and x86), which, unlike Solaris
>> 10,
>> has posix_memalign in libc:
>>
>> FAIL: gcc.dg/torture/pr60092.c -O0 execution test
>>
>> The posix_memalign invocation with size = -1 cannot be right, and indeed the
>> function returns ENOMEM.
>
> The invocation uses size -1 intentionally, and expects ENOMEM, but if Solaris
> libc stores to what the first argument points to even when it fails, then it
> violates POSIX.
POSIX.1 doesn't explicitly forbid setting *memptr on error:
http://pubs.opengroup.org/onlinepubs/007904975/functions/posix_memalign.html
But I agree it seems strange, and in the OpenSolaris sources you see
that *memptr is set to the memalign() return value (NULL in this case).
Rainer
next prev parent reply other threads:[~2014-02-14 16:40 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-06 10:22 [Bug middle-end/60092] New: " rguenth at gcc dot gnu.org
2014-02-06 10:22 ` [Bug middle-end/60092] " rguenth at gcc dot gnu.org
2014-02-06 10:32 ` jakub at gcc dot gnu.org
2014-02-06 11:34 ` rguenth at gcc dot gnu.org
2014-02-06 12:51 ` glisse at gcc dot gnu.org
2014-02-06 13:13 ` jakub at gcc dot gnu.org
2014-02-06 13:18 ` rguenth at gcc dot gnu.org
2014-02-06 13:42 ` jakub at gcc dot gnu.org
2014-02-06 14:07 ` rguenther at suse dot de
2014-02-06 14:08 ` jakub at gcc dot gnu.org
2014-02-06 14:45 ` rguenth at gcc dot gnu.org
2014-02-06 14:53 ` jakub at gcc dot gnu.org
2014-02-06 15:03 ` rguenther at suse dot de
2014-02-07 9:34 ` rguenth at gcc dot gnu.org
2014-02-07 13:41 ` rguenth at gcc dot gnu.org
2014-02-12 10:01 ` burnus at gcc dot gnu.org
2014-02-12 10:18 ` jakub at gcc dot gnu.org
2014-02-12 13:36 ` rguenth at gcc dot gnu.org
2014-02-14 16:11 ` ro at gcc dot gnu.org
2014-02-14 16:14 ` jakub at gcc dot gnu.org
2014-02-14 16:40 ` ro at CeBiTec dot Uni-Bielefeld.DE [this message]
2014-02-15 9:59 ` rguenth at gcc dot gnu.org
2014-02-18 14:52 ` ro at CeBiTec dot Uni-Bielefeld.DE
2014-04-22 11:36 ` jakub at gcc dot gnu.org
2014-04-28 14:36 ` rguenth at gcc dot gnu.org
2014-06-03 13:48 ` rguenth at gcc dot gnu.org
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