From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-prs-return-20228-listarch-gcc-prs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 18142 invoked by alias); 7 Jul 2002 01:56:04 -0000
Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-prs/>
List-Post: <mailto:gcc-prs@gcc.gnu.org>
List-Help: <mailto:gcc-prs-help@gcc.gnu.org>
Sender: gcc-prs-owner@gcc.gnu.org
Received: (qmail 18060 invoked by uid 71); 7 Jul 2002 01:56:01 -0000
Resent-Date: 7 Jul 2002 01:56:01 -0000
Resent-Message-ID: <20020707015601.18059.qmail@sources.redhat.com>
Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer)
Resent-To: nobody@gcc.gnu.org
Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org
Resent-Reply-To: gcc-gnats@gcc.gnu.org, ghazi@caip.rutgers.edu
Received: (qmail 14729 invoked by uid 61); 7 Jul 2002 01:52:48 -0000
Message-Id: <20020707015248.14728.qmail@sources.redhat.com>
Date: Sat, 06 Jul 2002 18:56:00 -0000
From: ghazi@caip.rutgers.edu
Reply-To: ghazi@caip.rutgers.edu
To: gcc-gnats@gcc.gnu.org
X-Send-Pr-Version: gnatsweb-2.9.3 (1.1.1.1.2.31)
Subject: c/7227: Regression: bogus uninitialized variable warning with attribute mode TI
X-SW-Source: 2002-07/txt/msg00230.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         7227
>Category:       c
>Synopsis:       Regression: bogus uninitialized variable warning with attribute mode TI
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          mistaken
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 06 18:56:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Kaveh Ghazi
>Release:        gcc version 3.2 20020706 (experimental)
>Organization:
>Environment:
sparc-sun-solaris2.7 & mips-sgi-irix6.2 (but probably all)
>Description:
This testcase yields an uninitialized variable warning when compiled with the 3.2 trunk.  The current 3.1.x branch doesn't complain, thus it is a regression.  I've written the testcase in a form suitable for installation as gcc.dg/uninit-C.c:

/* Spurious uninitialized variable warning, inspired by libgcc2.c.  */
/* { dg-do compile } */
/* { dg-options "-O -Wuninitialized" } */

typedef int TItype __attribute__ ((mode (TI)));

TItype
__subvdi3 (TItype a, TItype b)
{
  TItype w;

  w = a - b;

  return w;
}
>How-To-Repeat:

>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: