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* [Bug middle-end/24612] New: [gomp] Bogus "is used uninitialized" warning
@ 2005-11-01 11:04 reichelt at gcc dot gnu dot org
2005-11-02 8:23 ` [Bug middle-end/24612] " jakub at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: reichelt at gcc dot gnu dot org @ 2005-11-01 11:04 UTC (permalink / raw)
To: gcc-bugs
Compiling the following code with "-fopenmp -O -Wall" yields a bogus warning
(happens with C and C++):
======================================
void foo()
{
int i;
#pragma omp threadprivate(i)
#pragma omp parallel sections
{
#pragma omp section
{
i = 0;
++i;
}
}
}
======================================
bug.c: In function 'foo':
bug.c:11: warning: 'i' is used uninitialized in this function
--
Summary: [gomp] Bogus "is used uninitialized" warning
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: diagnostic, openmp
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24612
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/24612] [gomp] Bogus "is used uninitialized" warning
2005-11-01 11:04 [Bug middle-end/24612] New: [gomp] Bogus "is used uninitialized" warning reichelt at gcc dot gnu dot org
@ 2005-11-02 8:23 ` jakub at gcc dot gnu dot org
2005-11-03 2:18 ` rth at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: jakub at gcc dot gnu dot org @ 2005-11-02 8:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jakub at gcc dot gnu dot org 2005-11-02 08:23 -------
That testcase is IMHO invalid (see
http://gcc.gnu.org/ml/gcc-patches/2005-11/msg00099.html
), but
void
foo (void)
{
int i;
#pragma omp parallel sections shared (i)
{
#pragma omp section
{
i = 0;
++i;
}
}
}
which is valid warns too.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24612
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/24612] [gomp] Bogus "is used uninitialized" warning
2005-11-01 11:04 [Bug middle-end/24612] New: [gomp] Bogus "is used uninitialized" warning reichelt at gcc dot gnu dot org
2005-11-02 8:23 ` [Bug middle-end/24612] " jakub at gcc dot gnu dot org
@ 2005-11-03 2:18 ` rth at gcc dot gnu dot org
2005-11-05 23:33 ` rth at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rth at gcc dot gnu dot org @ 2005-11-03 2:18 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rth at gcc dot gnu dot org 2005-11-03 02:18 -------
Hum. I suppose we could just mark the variable TREE_NO_WARNING. Our
only other option is to pass by reference, and that would suppress any
legitimate warnings as well.
--
rth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2005-11-03 02:18:10
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24612
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/24612] [gomp] Bogus "is used uninitialized" warning
2005-11-01 11:04 [Bug middle-end/24612] New: [gomp] Bogus "is used uninitialized" warning reichelt at gcc dot gnu dot org
2005-11-02 8:23 ` [Bug middle-end/24612] " jakub at gcc dot gnu dot org
2005-11-03 2:18 ` rth at gcc dot gnu dot org
@ 2005-11-05 23:33 ` rth at gcc dot gnu dot org
2005-11-06 0:55 ` rth at gcc dot gnu dot org
2005-11-06 0:56 ` rth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rth at gcc dot gnu dot org @ 2005-11-05 23:33 UTC (permalink / raw)
To: gcc-bugs
--
rth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rth at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2005-11-03 02:18:10 |2005-11-05 23:33:15
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24612
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/24612] [gomp] Bogus "is used uninitialized" warning
2005-11-01 11:04 [Bug middle-end/24612] New: [gomp] Bogus "is used uninitialized" warning reichelt at gcc dot gnu dot org
` (2 preceding siblings ...)
2005-11-05 23:33 ` rth at gcc dot gnu dot org
@ 2005-11-06 0:55 ` rth at gcc dot gnu dot org
2005-11-06 0:56 ` rth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rth at gcc dot gnu dot org @ 2005-11-06 0:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rth at gcc dot gnu dot org 2005-11-06 00:55 -------
Subject: Bug 24612
Author: rth
Date: Sun Nov 6 00:55:43 2005
New Revision: 106551
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=106551
Log:
PR middle-end/24612
* omp-low.c (expand_rec_input_clauses): Set TREE_NO_WARNING for
pass-by-value shared variables.
Added:
branches/gomp-20050608-branch/gcc/testsuite/gcc.dg/gomp/uninit-1.c
Modified:
branches/gomp-20050608-branch/gcc/ChangeLog.gomp
branches/gomp-20050608-branch/gcc/omp-low.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24612
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/24612] [gomp] Bogus "is used uninitialized" warning
2005-11-01 11:04 [Bug middle-end/24612] New: [gomp] Bogus "is used uninitialized" warning reichelt at gcc dot gnu dot org
` (3 preceding siblings ...)
2005-11-06 0:55 ` rth at gcc dot gnu dot org
@ 2005-11-06 0:56 ` rth at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: rth at gcc dot gnu dot org @ 2005-11-06 0:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rth at gcc dot gnu dot org 2005-11-06 00:56 -------
Fixed.
--
rth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24612
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2005-11-06 0:56 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2005-11-01 11:04 [Bug middle-end/24612] New: [gomp] Bogus "is used uninitialized" warning reichelt at gcc dot gnu dot org
2005-11-02 8:23 ` [Bug middle-end/24612] " jakub at gcc dot gnu dot org
2005-11-03 2:18 ` rth at gcc dot gnu dot org
2005-11-05 23:33 ` rth at gcc dot gnu dot org
2005-11-06 0:55 ` rth at gcc dot gnu dot org
2005-11-06 0:56 ` rth at gcc dot gnu dot org
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