[Bug fortran/108453] [10/11/12/13 Regression] ICE in gfc_trans_use_stmts, at fortran/trans-decl.cc:5361 since r6-3704-g2b3f52a2d0fb22ba

[anlauf at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108453

anlauf at gcc dot gnu.org changed:

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

--- Comment #2 from anlauf at gcc dot gnu.org ---
Patch:

diff --git a/gcc/fortran/match.cc b/gcc/fortran/match.cc
index 5e933c12931..f9393f189e0 100644
--- a/gcc/fortran/match.cc
+++ b/gcc/fortran/match.cc
@@ -5345,6 +5345,15 @@ gfc_match_common (void)
                goto cleanup;
            }

+         /* F2018:C8121: A variable-name shall not be a name made accessible
+            by use association.  */
+         if (sym->attr.use_assoc)
+           {
+             gfc_error ("Symbol %qs at %C is USE associated from module %qs "
+                        "and cannot occur in COMMON", sym->name, sym->module);
+             goto cleanup;
+           }
+
          /* Deal with an optional array specification after the
             symbol name.  */
          m = gfc_match_array_spec (&as, true, true);