## Comments

## Patch

===================================================================
@@ -1511,6 +1511,7 @@
procedure Expand_N_Assignment_Statement (N : Node_Id) is
Loc : constant Source_Ptr := Sloc (N);
+ Crep : constant Boolean := Change_Of_Representation (N);
Lhs : constant Node_Id := Name (N);
Rhs : constant Node_Id := Expression (N);
Typ : constant Entity_Id := Underlying_Type (Etype (Lhs));
@@ -1780,7 +1781,7 @@
-- Skip discriminant check if change of representation. Will be
-- done when the change of representation is expanded out.
- if not Change_Of_Representation (N) then
+ if not Crep then
Apply_Discriminant_Check (Rhs, Etype (Lhs), Lhs);
end if;
@@ -1830,7 +1831,7 @@
-- Skip discriminant check if change of representation. Will be
-- done when the change of representation is expanded out.
- if not Change_Of_Representation (N) then
+ if not Crep then
Apply_Discriminant_Check (Rhs, Etype (Lhs));
end if;
@@ -1883,10 +1884,13 @@
Apply_Constraint_Check (Rhs, Etype (Lhs));
end if;
- -- Case of assignment to a bit packed array element
+ -- Case of assignment to a bit packed array element. If there is a
+ -- change of representation this must be expanded into components,
+ -- otherwise this is a bit-field assignment.
if Nkind (Lhs) = N_Indexed_Component
and then Is_Bit_Packed_Array (Etype (Prefix (Lhs)))
+ and then not Crep
then
Expand_Bit_Packed_Element_Set (N);
return;