From: Piotr Trojanek <troja...@adacore.com>
Fix crash on illegal code, when routine Iface_Present_In_Ancestor is
called on the predefined String type and attempts to examine the list of
interfaces.
gcc/ada/
* sem_type.adb (Iface_Present_In_Ancestor): Only look at the list of
interfaces for types that allow it. The guard is a high-level equivalent
of the entity kinds listed in the preconditon of the Interfaces query.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/sem_type.adb | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/gcc/ada/sem_type.adb b/gcc/ada/sem_type.adb
index bbdcd5f24b8..8579130cdac 100644
--- a/gcc/ada/sem_type.adb
+++ b/gcc/ada/sem_type.adb
@@ -2578,7 +2578,9 @@ package body Sem_Type is
end if;
loop
- if Present (Interfaces (E)) then
+ if Is_Record_Type (E)
+ and then Present (Interfaces (E))
+ then
Elmt := First_Elmt (Interfaces (E));
while Present (Elmt) loop
AI := Node (Elmt);
--
2.40.0
