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* [Bug tree-optimization/18746] New: segfault with cc1 compiled with checking disabled
@ 2004-12-01  0:52 kazu at cs dot umass dot edu
  2004-12-01  0:55 ` Diego Novillo
                   ` (13 more replies)
  0 siblings, 14 replies; 15+ messages in thread
From: kazu at cs dot umass dot edu @ 2004-12-01  0:52 UTC (permalink / raw)
  To: gcc-bugs

Build cc1 with checking disabled.
Then compile the following with ./cc1 -quiet -O2.

extern void abort (void) __attribute__ ((noreturn));
extern char *strcpy (char *__restrict __dest, __const char *__restrict __src);

int
foo (int aaa, int bbb)
{
  static char buf[30];
  const char *p;

  switch (aaa)
    {
    case 10:
      p = "hello";
      break;

    case 20:
      p = "world";
      break;

    default:
      abort ();
    }

  if (bbb)
    {
      strcpy (buf, "banana");
      return 1;
    }
  strcpy (buf, p);

  return 0;
}

I get "internal compiler error: Segmentation fault".

The testcase was reduced from i386.c.

-- 
           Summary: segfault with cc1 compiled with checking disabled
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kazu at cs dot umass dot edu
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18746


^ permalink raw reply	[flat|nested] 15+ messages in thread
end of thread, other threads:[~2004-12-01 23:54 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-12-01  0:52 [Bug tree-optimization/18746] New: segfault with cc1 compiled with checking disabled kazu at cs dot umass dot edu
2004-12-01  0:55 ` Diego Novillo
2004-12-01  0:55 ` [Bug tree-optimization/18746] " dnovillo at redhat dot com
2004-12-01  1:00 ` [Bug tree-optimization/18746] [4.0 Regression] " pinskia at gcc dot gnu dot org
2004-12-01  1:04 ` kazu at cs dot umass dot edu
2004-12-01  1:33 ` pinskia at gcc dot gnu dot org
2004-12-01  2:12 ` kazu at cs dot umass dot edu
2004-12-01  2:13 ` pinskia at gcc dot gnu dot org
2004-12-01  2:22 ` pinskia at gcc dot gnu dot org
2004-12-01  2:31 ` pinskia at gcc dot gnu dot org
2004-12-01  2:33 ` pinskia at gcc dot gnu dot org
2004-12-01  2:46 ` pinskia at gcc dot gnu dot org
2004-12-01  3:01 ` pinskia at gcc dot gnu dot org
2004-12-01 23:53 ` cvs-commit at gcc dot gnu dot org
2004-12-01 23:54 ` pinskia at gcc dot gnu dot org

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