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* [Bug c/17172] New: missing warning message when not -O3 or when use function call
@ 2004-08-24 17:52 wxy at kivera dot com
2004-08-24 18:00 ` [Bug c/17172] " pinskia at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: wxy at kivera dot com @ 2004-08-24 17:52 UTC (permalink / raw)
To: gcc-bugs
source code:
#ifdef CALL
void set(int *id) {
*id = 1;
}
#endif
int main(int argc, char **argv) {
int id;
if (argc > 1) {
#ifdef CALL
set(&id);
#else
id = 1;
#endif
}
return id;
}
end of source code
If compile using
gcc -Wall -O3 test.c
it will warn about 'id' might be used uninitialized.
but compile using
gcc -Wall test.c
or
gcc -Wall -O3 -DCALL test.c
then, no such warning is printed.
I think as long as -Wall is included, it should always warn you.
--
Summary: missing warning message when not -O3 or when use
function call
Product: gcc
Version: 3.4.1
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: wxy at kivera dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: both linux and solaris
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17172
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/17172] missing warning message when not -O3 or when use function call
2004-08-24 17:52 [Bug c/17172] New: missing warning message when not -O3 or when use function call wxy at kivera dot com
@ 2004-08-24 18:00 ` pinskia at gcc dot gnu dot org
2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-24 18:00 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-24 18:00 -------
Fixed on the mainline already.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Keywords| |diagnostic
Resolution| |FIXED
Target Milestone|--- |3.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17172
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/17172] missing warning message when not -O3 or when use function call
2004-08-24 17:52 [Bug c/17172] New: missing warning message when not -O3 or when use function call wxy at kivera dot com
2004-08-24 18:00 ` [Bug c/17172] " pinskia at gcc dot gnu dot org
@ 2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-25 21:16 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-25 21:16 -------
Reopening to mark as a dup of ..
--
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|FIXED |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17172
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/17172] missing warning message when not -O3 or when use function call
2004-08-24 17:52 [Bug c/17172] New: missing warning message when not -O3 or when use function call wxy at kivera dot com
2004-08-24 18:00 ` [Bug c/17172] " pinskia at gcc dot gnu dot org
2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
@ 2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-25 21:16 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-25 21:16 -------
*** This bug has been marked as a duplicate of 179 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17172
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2004-08-25 21:16 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-08-24 17:52 [Bug c/17172] New: missing warning message when not -O3 or when use function call wxy at kivera dot com
2004-08-24 18:00 ` [Bug c/17172] " pinskia at gcc dot gnu dot org
2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
2004-08-25 21:16 ` pinskia at gcc dot gnu dot org
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