From: Eric Botcazou <ebotcazou@adacore.com>
Date: Thu, 12 Aug 2021 16:12:40 +0000 (+0200)
Subject: [Ada] Add missing guard before call to Interface_Present_In_Ancestor
X-Git-Tag: basepoints/gcc-13~4288
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3a81dbb618e3ac6cd42ac6f296a96296e099ac1f;p=thirdparty%2Fgcc.git

[Ada] Add missing guard before call to Interface_Present_In_Ancestor

gcc/ada/

	* sem_type.adb (Specific_Type): Check that the type is tagged
	before calling Interface_Present_In_Ancestor on it.
---

diff --git a/gcc/ada/sem_type.adb b/gcc/ada/sem_type.adb
index 3ca2e302a8e0..8e5b067bb760 100644
--- a/gcc/ada/sem_type.adb
+++ b/gcc/ada/sem_type.adb
@@ -3424,7 +3424,8 @@ package body Sem_Type is
       --  Ada 2005 (AI-251): T1 is a concrete type that implements the
       --  class-wide interface T2
 
-      elsif Is_Class_Wide_Type (T2)
+      elsif Is_Tagged_Type (T1)
+        and then Is_Class_Wide_Type (T2)
         and then Is_Interface (Etype (T2))
         and then Interface_Present_In_Ancestor (Typ   => T1,
                                                 Iface => Etype (T2))