From: Ronan Desplanques <[email protected]>
Before this patch, Set_Can_Use_Internal_Rep was called on access
to subprogram subtypes when instantiating Unchecked_Conversion
from System.Address to an access to subprogram subtype (or the
reverse). This was incorrect and caused an assertion failure.
This patch fixes that by modifying the Can_Use_Internal_Rep
attribute of the base type of the subtype instead.
gcc/ada/
* sem_ch13.adb (Validate_Unchecked_Conversion): Fix behavior on
System.Address to access to subprogram subtype conversion.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/sem_ch13.adb | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/ada/sem_ch13.adb b/gcc/ada/sem_ch13.adb
index 0d311ca80b4..82345eca09e 100644
--- a/gcc/ada/sem_ch13.adb
+++ b/gcc/ada/sem_ch13.adb
@@ -17742,12 +17742,12 @@ package body Sem_Ch13 is
and then Is_Descendant_Of_Address (Source)
and then In_Same_Source_Unit (Target, N)
then
- Set_Can_Use_Internal_Rep (Target, False);
+ Set_Can_Use_Internal_Rep (Base_Type (Target), False);
elsif Is_Access_Subprogram_Type (Source)
and then Is_Descendant_Of_Address (Target)
and then In_Same_Source_Unit (Source, N)
then
- Set_Can_Use_Internal_Rep (Source, False);
+ Set_Can_Use_Internal_Rep (Base_Type (Source), False);
end if;
-- Generate N_Validate_Unchecked_Conversion node for back end in case
--
2.40.0
