[Bug tree-optimization/38926] [4.4 Regression] ice in find_or_generate_expression, at tree-ssa-pre.c:2769

[rguenth at gcc dot gnu dot org]

------- Comment #6 from rguenth at gcc dot gnu dot org  2009-01-27 14:38 -------
Happens here:

  /* If the PHI node is already available, use it.  */
  if ((res = vn_phi_lookup (phi)) != NULL_TREE)
    {
      gimple_stmt_iterator gsi = gsi_for_stmt (phi);
      remove_phi_node (&gsi, true);
      release_defs (phi);
      add_to_value (val, get_or_alloc_expr_for_name (res));

we add g_2.7_58 to 0037 here even though get_expr_value_id returns 0030.  I
vaguely remember adding that code ...


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2009-01-21 10:13:21         |2009-01-27 14:38:26
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38926