From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-259625-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 21479 invoked by alias); 26 Aug 2008 13:39:49 -0000
Received: (qmail 20983 invoked by uid 48); 26 Aug 2008 13:38:21 -0000
Date: Tue, 26 Aug 2008 13:39:00 -0000
Message-ID: <20080826133821.20982.qmail@sourceware.org>
X-Bugzilla-Reason: CC
References: <bug-37102-12544@http.gcc.gnu.org/bugzilla/>
Subject: [Bug tree-optimization/37102] [4.3/4.4 Regression] possible integer codegen bug
In-Reply-To: <bug-37102-12544@http.gcc.gnu.org/bugzilla/>
Reply-To: gcc-bugzilla@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org
From: "cnstar9988 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
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
X-SW-Source: 2008-08/txt/msg01975.txt.bz2



------- Comment #4 from cnstar9988 at gmail dot com  2008-08-26 13:38 -------
gcc 4.3.2 20080826 failed.

----------------------------
#include <stdio.h>

unsigned int g_24;
unsigned int g_37 = 1;
unsigned char g_225;

int main (void)
{
  int l_289;
  for (l_289 = 1; l_289 < 5; l_289 += 1) {
    if (g_225) {
      g_24 = g_37;
    }
  }
  g_24 = g_37;
  unsigned short context = g_24 << 1;
  do {
    if (context)
      context = (context << 1) ^ 1;
  } while (0);
  printf ("%d\n", (int)context);
  return 0;
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37102