Re: c/5035: Incorrectly produces '`<var>' might be used uninitialized in this function'

Re: c/5035: Incorrectly produces '`<var>' might be used uninitialized in this function'

[Taylor Hutt]

The following reply was made to PR c/5035; it has been noted by GNATS.

From: Taylor Hutt <thutt@vmware.com>
To: rth@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,
        nobody@gcc.gnu.org, thutt@vmware.com, gcc-gnats@gcc.gnu.org
Cc:  
Subject: Re: c/5035: Incorrectly produces '`<var>' might be used uninitialized in this function'
Date: 29 Apr 2002 05:49:45 -0700

 rth@gcc.gnu.org writes:
 
 > Synopsis: Incorrectly produces '`<var>' might be used uninitialized in this function'
 > 
 > State-Changed-From-To: open->suspended
 > State-Changed-By: rth
 > State-Changed-When: Fri Apr 26 01:56:30 2002
 > State-Changed-Why:
 >     The well-known
 >       if (p) set q;
 >       if (p) use q;
 >     problem.
 > 
 > http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5035
 
 This is the most worthless response to a defect report I have ever seen.

Re: c/5035: Incorrectly produces '`<var>' might be used uninitialized in this function'

[Richard Henderson]

The following reply was made to PR c/5035; it has been noted by GNATS.

From: Richard Henderson <rth@redhat.com>
To: Taylor Hutt <thutt@vmware.com>
Cc: rth@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,
   nobody@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: c/5035: Incorrectly produces '`<var>' might be used uninitialized in this function'
Date: Mon, 29 Apr 2002 10:37:47 -0700

 On Mon, Apr 29, 2002 at 05:49:45AM -0700, Taylor Hutt wrote:
 > This is the most worthless response to a defect report I have ever seen.
 
 You're welcome.
 
 It's just that this exact problem has been reported many times,
 and it is distinctly non-trivial to fix.  Thus I suspended it.
 
 
 r~

Re: c/5035: Incorrectly produces '`<var>' might be used uninitialized in this function'

[rth]

Synopsis: Incorrectly produces '`<var>' might be used uninitialized in this function'

State-Changed-From-To: open->suspended
State-Changed-By: rth
State-Changed-When: Fri Apr 26 01:56:30 2002
State-Changed-Why:
    The well-known
      if (p) set q;
      if (p) use q;
    problem.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=5035

c/5035: Incorrectly produces '`<var>' might be used uninitialized in this function'

[thutt]

>Number:         5035
>Category:       c
>Synopsis:       Incorrectly produces '`<var>' might be used uninitialized in this function'
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Dec 06 09:16:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     thutt@vmware.com
>Release:        egcs-2.91.66
>Organization:
>Environment:
uname -a reports     : Linux thutt-lx 2.2.17 #3 Mon Oct 1 20:43:58 PDT 2001 i686 unknown
>Description:
gcc -v -c -O2 -Wall defect.c
Incorrectly produces the following warning:
 defect.c:7: warning: `b' might be used uninitialized in this function

'a' is local and not aliased.
'b' is local and not aliased.

Both uses of 'b' are under the same control conditions; the
compiler should not produce this warning.
>How-To-Repeat:
Follow instructions in source file.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="defect.c"

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