[Bug fortran/69497] ICE in gfc_free_namespace, at fortran/symbol.c:3701

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69497

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jvdelisle at gcc dot gnu.org

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The ICEs in this PR and PR69498 disappear withe following patch

--- ../_clean/gcc/fortran/symbol.c      2016-01-04 19:51:09.000000000 +0100
+++ gcc/fortran/symbol.c        2016-01-27 12:55:59.000000000 +0100
@@ -2754,10 +2754,11 @@ gfc_release_symbol (gfc_symbol *sym)
     }

   sym->refs--;
-  if (sym->refs > 0)
+  /* if (sym->refs > 0) */
+  if (sym->refs != 0)
     return;

-  gcc_assert (sym->refs == 0);
+  /* gcc_assert (sym->refs == 0); */
   gfc_free_symbol (sym);
 }

@@ -3696,9 +3698,10 @@ gfc_free_namespace (gfc_namespace *ns)
     return;

   ns->refs--;
-  if (ns->refs > 0)
+  /* if (ns->refs > 0) */
+  if (ns->refs != 0)
     return;
-  gcc_assert (ns->refs == 0);
+  /* gcc_assert (ns->refs == 0); */

   gfc_free_statements (ns->code);