[Ada] Fix bogus error for bit-packed array with volatile component

gcc/ada/

	* freeze.adb (Check_Strict_Alignment): Do not set the flag for
	a bit-packed array type, even if it is a by-reference type.

diff --git a/gcc/ada/freeze.adb b/gcc/ada/freeze.adb
index f090b3efbb3c995f1811d829b45fd4420cf306c9..08c78a3c0d2fafe3692cd9fa5095058404289415 100644 (file)
--- a/gcc/ada/freeze.adb
+++ b/gcc/ada/freeze.adb
@@ -1609,7 +1609,10 @@ package body Freeze is
       Comp  : Entity_Id;
 
    begin
-      if Is_By_Reference_Type (E) then
+      --  Bit-packed array types do not require strict alignment, even if they
+      --  are by-reference types, because they are accessed in a special way.
+
+      if Is_By_Reference_Type (E) and then not Is_Bit_Packed_Array (E) then
          Set_Strict_Alignment (E);
 
       elsif Is_Array_Type (E) then