[Bug fortran/103778] [10/11/12 Regression] ICE: Invalid expression in gfc_element_size

[anlauf at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103778

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-12-20
                 CC|                            |anlauf at gcc dot gnu.org
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from anlauf at gcc dot gnu.org ---
A BOZ is not interoperable.  Testing:

diff --git a/gcc/fortran/check.c b/gcc/fortran/check.c
index 625473c90d1..b4db9337e9f 100644
--- a/gcc/fortran/check.c
+++ b/gcc/fortran/check.c
@@ -5185,6 +5185,12 @@ is_c_interoperable (gfc_expr *expr, const char **msg,
bool c_loc, bool c_f_ptr)
       return false;
     }

+  if (expr->ts.type == BT_BOZ)
+    {
+      *msg = "BOZ literal constant";
+      return false;
+    }
+
   if (expr->ts.type == BT_CLASS)
     {
       *msg = "Expression is polymorphic";