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From: "ulfalizer at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/65244] New: Bogus -Wmaybe-uninitialized warning with posix_memalign() and -Og
Date: Fri, 27 Feb 2015 18:51:00 -0000 [thread overview]
Message-ID: <bug-65244-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65244
Bug ID: 65244
Summary: Bogus -Wmaybe-uninitialized warning with
posix_memalign() and -Og
Product: gcc
Version: 4.9.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: ulfalizer at gmail dot com
The warning
posix_memalign_warn.c: In function ‘f’:
posix_memalign_warn.c:9:5: warning: ‘ptr’ may be used uninitialized in this
function [-Wmaybe-uninitialized]
return ptr;
^
is generated when compiling the following with
gcc -Og -Wmaybe-uninitialized -c posix_memalign_warn.c
No warning is produced for -O0/1/2/3/fast.
#include <stdlib.h>
void *f(void) {
void *ptr;
if (posix_memalign(&ptr, 16, 256) != 0)
exit(EXIT_FAILURE);
return ptr;
}
>From gcc-bugs-return-478776-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Feb 27 17:20:42 2015
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From: "bergner at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/65242] [5 Regression] ICE (in gen_add2_insn, at optabs.c:4761) on powerpc64le-linux-gnu
Date: Fri, 27 Feb 2015 18:54:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ide242
Peter Bergner <bergner at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-02-27
Ever confirmed|0 |1
--- Comment #1 from Peter Bergner <bergner at gcc dot gnu.org> ---
Confirmed, I'll have a look.
next reply other threads:[~2015-02-27 17:20 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-27 18:51 ulfalizer at gmail dot com [this message]
2015-02-27 19:10 ` [Bug c/65244] " ulfalizer at gmail dot com
2015-02-27 21:02 ` manu at gcc dot gnu.org
2015-02-27 21:24 ` ulfalizer at gmail dot com
2015-02-27 21:48 ` manu at gcc dot gnu.org
2015-02-27 22:02 ` ulfalizer at gmail dot com
2015-02-27 22:07 ` howarth at bromo dot med.uc.edu
2015-02-27 23:04 ` ulfalizer at gmail dot com
2015-02-27 23:21 ` pinskia at gcc dot gnu.org
2015-02-28 1:24 ` manu at gcc dot gnu.org
2021-03-31 19:05 ` [Bug middle-end/65244] " msebor at gcc dot gnu.org
2022-08-30 8:27 ` [Bug tree-optimization/65244] " rguenth at gcc dot gnu.org
2022-08-31 9:07 ` rguenth at gcc dot gnu.org
2022-08-31 11:04 ` cvs-commit at gcc dot gnu.org
2022-08-31 11:04 ` rguenth at gcc dot gnu.org
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