From: Eric Botcazou <ebotca...@adacore.com>
The pragma is consistenly rejected for the sizes of nonstatic array types
because Eval_Attribute does not evaluate it even if it is known.
gcc/ada/ChangeLog:
* sem_attr.adb (Eval_Attribute): Treat the various size attributes
like Component_Size for nonstatic array types.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/ada/sem_attr.adb | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/gcc/ada/sem_attr.adb b/gcc/ada/sem_attr.adb
index 4e06ec54978..2315d515ac4 100644
--- a/gcc/ada/sem_attr.adb
+++ b/gcc/ada/sem_attr.adb
@@ -8824,6 +8824,8 @@ package body Sem_Attr is
-- unconstrained arrays. Furthermore, it is essential to fold this
-- in the packed case, since otherwise the value will be incorrect.
-- Moreover, the exact same reasoning can be applied to Alignment.
+ -- Likewise for the various size attributes, although folding will
+ -- never succeed for them with unconstrained arrays.
elsif Id = Attribute_Atomic_Always_Lock_Free or else
Id = Attribute_Definite or else
@@ -8835,7 +8837,12 @@ package body Sem_Attr is
Id = Attribute_Type_Class or else
Id = Attribute_Unconstrained_Array or else
Id = Attribute_Component_Size or else
- Id = Attribute_Alignment
+ Id = Attribute_Alignment or else
+ Id = Attribute_Machine_Size or else
+ Id = Attribute_Object_Size or else
+ Id = Attribute_Size or else
+ Id = Attribute_VADS_Size or else
+ Id = Attribute_Value_Size
then
Static := False;
Set_Is_Static_Expression (N, False);
--
2.43.0
