[Bug tree-optimization/27103] [4.2 Regression] ICE: tree check: expected ssa_name, have symbol_memory_tag in is_old_name, at tree-into-ssa.c:466

["tbm at cyrius dot com" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #4 from tbm at cyrius dot com  2006-04-13 11:27 -------
I can confirm that this test case works with 20060408.  However, a slightly
longer test case (directly from delta, without Falk's manual reduction) still
produces a segfault, but only when you pass -finline-functions:

(sid)127:tbm@deprecation: ~] cat m.c
typedef struct { unsigned int size; } gnutls_datum;
typedef struct gnutls_cert { gnutls_datum raw; } gnutls_cert;
typedef struct gnutls_privkey_int { } gnutls_privkey;
typedef struct gnutls_session_int *gnutls_session;
extern int _gnutls_log_level;

_gnutls_gen_x509_crt (gnutls_session session, unsigned char ** data)
{
  int ret, i;
  unsigned char *pdata;
  gnutls_cert *apr_cert_list;
  gnutls_privkey *apr_pkey;
  int apr_cert_list_length;
  if ((ret =
       _gnutls_get_selected_cert (session, &apr_cert_list,
                                  &apr_cert_list_length, &apr_pkey)) < 0)
    {
      if (_gnutls_log_level >= 2 || _gnutls_log_level > 9)
        _gnutls_log (2, "ASSERT: %s:%d\n", "auth_cert.c", 665);
    }
  for (i = 0; i < apr_cert_list_length; i++)
    {
      _gnutls_write_datum24 (pdata, apr_cert_list[i].raw);
      pdata += (3 + apr_cert_list[i].raw.size);
    }
}
_gnutls_get_selected_cert (gnutls_session session,
                           gnutls_privkey ** apr_pkey)
{
}

(sid)128:tbm@deprecation: ~] gcc-4.0 -O2 -c -finline-functions m.c
(sid)129:tbm@deprecation: ~] /usr/lib/gcc-snapshot/bin/gcc -O2 -c
-finline-functions m.c
m.c: In function '_gnutls_gen_x509_crt':
m.c:8: internal compiler error: tree check: expected ssa_name, have
symbol_memory_tag in verify_ssa, at tree-ssa.c:735
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
zsh: exit 1     /usr/lib/gcc-snapshot/bin/gcc -O2 -c -finline-functions m.c
(sid)130:tbm@deprecation: ~] /usr/lib/gcc-snapshot/bin/gcc -O2 -c  m.c
(sid)131:tbm@deprecation: ~]


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27103