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Subject: [Bug fortran/55983] [4.7/4.8 Regression] ICE in find_typebound_proc_uop, at fortran/class.c:2711
Date: Tue, 15 Jan 2013 21:10:00 -0000
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X-Bugzilla-Component: fortran
X-Bugzilla-Keywords: ice-on-invalid-code
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X-Bugzilla-Who: janus at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Priority: P4
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X-Bugzilla-Target-Milestone: 4.8.0
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55983

janus at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
         AssignedTo|unassigned at gcc dot       |janus at gcc dot gnu.org
                   |gnu.org                     |

--- Comment #5 from janus at gcc dot gnu.org 2013-01-15 21:10:26 UTC ---
The following patch fixes the ICE in comment 0:


Index: gcc/fortran/class.c
===================================================================
--- gcc/fortran/class.c    (revision 195125)
+++ gcc/fortran/class.c    (working copy)
@@ -2707,15 +2707,17 @@ find_typebound_proc_uop (gfc_symbol* derived, gfc_
   gfc_symtree* res;
   gfc_symtree* root;

-  /* Set correct symbol-root.  */
-  gcc_assert (derived->f2k_derived);
-  root = (uop ? derived->f2k_derived->tb_uop_root
-          : derived->f2k_derived->tb_sym_root);
-
   /* Set default to failure.  */
   if (t)
     *t = FAILURE;

+  if (derived->f2k_derived)
+    /* Set correct symbol-root.  */
+    root = (uop ? derived->f2k_derived->tb_uop_root
+        : derived->f2k_derived->tb_sym_root);
+  else
+    return NULL;
+
   /* Try to find it in the current type's namespace.  */
   res = gfc_find_symtree (root, name);
   if (res && res->n.tb && !res->n.tb->error)