From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-62078-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 24317 invoked by alias); 29 Jun 2003 14:32:58 -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 24310 invoked by uid 48); 29 Jun 2003 14:32:58 -0000
Date: Sun, 29 Jun 2003 14:32:00 -0000
From: "marcus at jet dot franken dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20030629143256.11373.marcus@jet.franken.de>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug c/11373] New: asm generated lhs expressions are discarded
X-Bugzilla-Reason: CC
X-SW-Source: 2003-06/txt/msg03094.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=11373

           Summary: asm generated lhs expressions are discarded
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: marcus at jet dot franken dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

Attached testcase reduces to f() { return; } instead of generating 
a memory reference: (omit-frame-pointer is not the culprit, breaks with -O2 
too) 
 
gcc -c -O2  -fomit-frame-pointer xx.i ; objdump -d xx.o 
00000000 <f>: 
   0:   c3                      ret 
 
(This is reduced from WINE, TlsSetValue())