re PR fortran/54384 (gfortran memory leaks)

2012-08-27  Tobias Burnus  <burnus@net-b.de>

        PR fortran/54384
        * resolve.c (gfc_resolve_character_operator): Free temporary
        variables.
        * trans-expr.c (gfc_conv_statement_function): Ditto.

From-SVN: r190731

gcc/fortran/ChangeLog

 2012-08-27  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/54384
+	* resolve.c (gfc_resolve_character_operator): Free temporary
+	variables.
+	* trans-expr.c (gfc_conv_statement_function): Ditto.
+
+2012-08-27  Tobias Burnus  <burnus@net-b.de>
+
+	PR fortran/54384
 	* dependency.c (check_section_vs_section): Use gfc_free_expr
 	instead of free.
 	* trans-intrinsic.c (conv_generic_with_optional_char_arg): Use

gcc/fortran/resolve.c

@@ -5593,7 +5593,12 @@ gfc_resolve_character_operator (gfc_expr *e)
   e->ts.u.cl = gfc_new_charlen (gfc_current_ns, NULL);
 
   if (!e1 || !e2)
-    return;
+    {
+      gfc_free_expr (e1);
+      gfc_free_expr (e2);
+      
+      return;
+    }
 
   e->ts.u.cl->length = gfc_add (e1, e2);
   e->ts.u.cl->length->ts.type = BT_INTEGER;

gcc/fortran/trans-expr.c

@@ -5080,6 +5080,7 @@ gfc_conv_statement_function (gfc_se * se, gfc_expr * expr)
   /* Restore the original variables.  */
   for (fargs = sym->formal, n = 0; fargs; fargs = fargs->next, n++)
     gfc_restore_sym (fargs->sym, &saved_vars[n]);
+  free (temp_vars);
   free (saved_vars);
 }