public inbox for gcc-prs@sourceware.org
help / color / mirror / Atom feed
* optimization/5377: Warning not given when optimizing
@ 2002-01-14 8:26 booh
0 siblings, 0 replies; 2+ messages in thread
From: booh @ 2002-01-14 8:26 UTC (permalink / raw)
To: gcc-gnats
>Number: 5377
>Category: optimization
>Synopsis: Warning not given when optimizing
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: unassigned
>State: open
>Class: accepts-illegal
>Submitter-Id: net
>Arrival-Date: Mon Jan 14 08:26:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator: booh@altern.org
>Release: gcc-3.0.3
>Organization:
>Environment:
i686-pc-linux-gnu
>Description:
Here are the results with some versions, note that
only the latest shows the problem.
gcc-2.95.3 -Wreturn-type -O2 -finline-functions :
In function `function':
warning: control reaches end of non-void function
gcc-3.0.3 -Wreturn-type -O2 :
In function `function':
warning: control reaches end of non-void function
/* ./a.out returns 123. */
gcc-3.0.3 -Wreturn-type -O2 -finline-functions
/* No warning. */
So the problem is that in the last compilation
the warning is not given and the function()
returns nothing.
>How-To-Repeat:
static int global_variable;
static int
function (void)
{
/* Just for function() to do something. */
global_variable = 123;
}
int
main (void)
{
return function ();
}
>Fix:
Maybe check_function_return_warnings() should be called before considering making the function inline.
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: optimization/5377: Warning not given when optimizing
@ 2002-04-03 2:07 rth
0 siblings, 0 replies; 2+ messages in thread
From: rth @ 2002-04-03 2:07 UTC (permalink / raw)
To: booh, gcc-bugs, gcc-prs, nobody
Synopsis: Warning not given when optimizing
State-Changed-From-To: open->closed
State-Changed-By: rth
State-Changed-When: Wed Apr 3 02:06:57 2002
State-Changed-Why:
Fixed for gcc 3.1:
z.c:8: warning: no return statement in function returning non-void
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5377
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2002-04-03 10:07 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-01-14 8:26 optimization/5377: Warning not given when optimizing booh
2002-04-03 2:07 rth
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).