[Bug fortran/50392] SIGSEGV in gfc_trans_label_assign

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50392

--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-09-14 
16:08:16 UTC ---
Patch:

--- a/gcc/fortran/trans-decl.c
+++ b/gcc/fortran/trans-decl.c
@@ -1264,9 +1265,7 @@ gfc_get_symbol_decl (gfc_symbol * sym)

       TREE_USED (sym->backend_decl) = 1;
       if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
-       {
-         gfc_add_assign_aux_vars (sym);
-       }
+       gfc_add_assign_aux_vars (sym);

       if (sym->attr.dimension
          && DECL_LANG_SPECIFIC (sym->backend_decl)
@@ -1277,6 +1276,10 @@ gfc_get_symbol_decl (gfc_symbol * sym)
       return sym->backend_decl;
     }

+  if (sym->result == sym && sym->attr.assign
+      && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
+    gfc_add_assign_aux_vars (sym);
+
   if (sym->backend_decl)
     return sym->backend_decl;