[Bug middle-end/14527] New: Segfault in can_throw_internal

[Bug middle-end/14527] New: Segfault in can_throw_internal

[jakub at gcc dot gnu dot org]

Following testcase causes cc1plus segfault on i386 on gcc-3_4-branch as of today.
It worked with a gcc-3_4-branch snapshot from end of January and works on 3.3
branch and trunk, so it should be handled as a regression.

// { dg-do compile }
// { dg-options "-O2" }

extern char *foo (char *, int);

struct A
{
  int i;
  void bar (char *);
};

struct B
{
  B ();
  void baz (void *);
};

struct C
{
  C (const char *, int);
};

void
A::bar (char *a)
{
  B *b;
  char *p1, *p2 = a + 512;

  while (foo (a, 511))
    {
      b = new B ();
      p1 = a;
      while (*p1)
        {
          b->baz (new C (p1, p2 - p1));
          p1 = *p2 ? p2 + 1 : p2;
        }
    }
}

-- 
           Summary: Segfault in can_throw_internal
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: x86_64-redhat-linux
GCC target triplet: i386-redhat-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14527

[Bug middle-end/14527] Segfault in can_throw_internal

[jakub at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unknown                     |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14527

[Bug middle-end/14527] [3.4 regression] Segfault in can_throw_internal

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-03-11 15:55 -------
Confirmed. A regression indeed. 
W. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code
      Known to fail|                            |3.4.0
      Known to work|                            |3.3.4 3.5.0
   Last reconfirmed|0000-00-00 00:00:00         |2004-03-11 15:55:30
               date|                            |
            Summary|Segfault in                 |[3.4 regression] Segfault in
                   |can_throw_internal          |can_throw_internal
   Target Milestone|---                         |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14527

[Bug middle-end/14527] [3.4 regression] Segfault in can_throw_internal

[jakub at gcc dot gnu dot org]

------- Additional Comments From jakub at gcc dot gnu dot org  2004-03-16 16:08 -------


*** This bug has been marked as a duplicate of 14477 ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14527