Date: Wed, 16 Jun 1999 14:03:07 -0700 (PDT) From: tsingle@sunland.gsfc.nasa."gov" To: freebsd-gnats-submit@freebsd.org Subject: ports/12249: egcs `-O2 -Wall' uninitialized variable bug Message-ID: <19990616210307.C745814EDE@hub.freebsd.org>
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>Number: 12249
>Category: ports
>Synopsis: egcs `-O2 -Wall' uninitialized variable bug
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: freebsd-ports
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Jun 16 14:10:00 PDT 1999
>Closed-Date:
>Last-Modified:
>Originator: Tim Singletary
>Release: 3.2-Release
>Organization:
NASA GSFC
>Environment:
FreeBSD talon.gsfc.nasa.gov 3.2-RELEASE FreeBSD 3.2-RELEASE #0: Tue May 18 04:05:08 GMT 1999 jkh@cathair:/usr/src/sys/compile/GENERIC i386
>Description:
/* Demonstrates bug in egcs-2.91.66 on FreeBSD 3.2. To see the bug,
compile using:
gcc -c token.c -g -Wall -O2
The bug is the warning:
token.c:17: warning: `c' might be used uninitialized in this function
egcs-2.91.60 on Solaris 2.6 reports this message twice.
*/
extern int getch();
extern int class();
int
token()
{
int state = 1;
while (1) {
int c=0;
c = getch();
switch (state) {
case 1: break;
case 4: break;
case 5: break;
case 6:
{
switch (class(c)) {
default: break;
}
} break;
case 7: break;
}
}
}
>How-To-Repeat:
See Full Description; compile the code there.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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