From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-142880-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 32031 invoked by alias); 15 May 2005 18:07:58 -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 31747 invoked by uid 48); 15 May 2005 18:07:52 -0000
Date: Sun, 15 May 2005 18:07:00 -0000
Message-ID: <20050515180752.31744.qmail@sourceware.org>
From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
In-Reply-To: <20050515153957.21584.graham.stott@btinternet.com>
References: <20050515153957.21584.graham.stott@btinternet.com>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug tree-optimization/21584] [4.1 Regression] ICE: verify_flow_sensitive_alias_info failed.
X-Bugzilla-Reason: CC
X-SW-Source: 2005-05/txt/msg02070.txt.bz2
List-Id: <gcc-bugs.sourceware.org>


------- Additional Comments From pinskia at gcc dot gnu dot org  2005-05-15 18:07 -------
Here is as reduced as I could get it:
extern char *strcpy (char *__restrict __dest, __const char *__restrict __src);

extern char *foo (void);
extern void *malloc(__SIZE_TYPE__) __attribute__((malloc));

char v[100];

void baz()
{
  char *vec;
  char buf[512];

  char *p = buf;
  while (v[(*p)])
    p++;

  if (*p != '#' && (p = foo()) != 0) {
    strcpy ((char*)malloc(10), p);
  }
}

Note it works with the C front-end but that is only because of the difference in the trees which are 
produced (stupid C++ front-end produces more trees for the if statement).

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21584