[Ada] Fix evaluation of Enum_Rep applied to imported constant

gcc/ada/

	* sem_attr.adb (Eval_Attribute): Check if constant has an
	initialization expression.

diff --git a/gcc/ada/sem_attr.adb b/gcc/ada/sem_attr.adb
index 4f11206..5e61810 100644 (file)
--- a/gcc/ada/sem_attr.adb
+++ b/gcc/ada/sem_attr.adb
@@ -7834,6 +7834,8 @@ package body Sem_Attr is
                        (Ekind (Entity (Enum_Expr)) = E_Constant
                           and then Nkind (Parent (Entity (Enum_Expr))) =
                                      N_Object_Declaration
+                          and then Present
+                                     (Expression (Parent (Entity (P))))
                           and then Compile_Time_Known_Value
                                      (Expression (Parent (Entity (P))))))
                   then