From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-66080-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 24312 invoked by alias); 2 Aug 2003 17:11:27 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Received: (qmail 24305 invoked by uid 48); 2 Aug 2003 17:11:25 -0000
Date: Sat, 02 Aug 2003 17:11:00 -0000
From: "mikulas at artax dot karlin dot mff dot cuni dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20030802171123.11772.mikulas@artax.karlin.mff.cuni.cz>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug c/11772] New: Incorrect code generated with -mrtd and long long
X-Bugzilla-Reason: CC
X-SW-Source: 2003-08/txt/msg00137.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11772

           Summary: Incorrect code generated with -mrtd and long long
           Product: gcc
           Version: 3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mikulas at artax dot karlin dot mff dot cuni dot cz
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i586-pc-linux-gnu
  GCC host triplet: i586-pc-linux-gnu
GCC target triplet: i586-pc-linux-gnu

When using gcc in an environment where -mrtd is default calling convention, gcc calls long long operations like __divdi3 without -mrtd (on the other hand, it honours -mregparm when calling these functions). The resulting code crashes, because stack is incremented twice --- once at the end of __divdi3 and next after return to calling function.