===================================================================
@@ -496,6 +496,8 @@ static GTY(()) tree descriptor_type;
static tree
get_descriptor_type (struct nesting_info *info)
{
+ /* The base alignment is that of a function. */
+ const unsigned align = FUNCTION_ALIGNMENT (FUNCTION_BOUNDARY);
tree t;
if (descriptor_type)
@@ -505,6 +507,8 @@ get_descriptor_type (struct nesting_info
t = build_array_type (ptr_type_node, t);
t = build_decl (DECL_SOURCE_LOCATION (info->context),
FIELD_DECL, get_identifier ("__data"), t);
+ SET_DECL_ALIGN (t, MAX (TYPE_ALIGN (ptr_type_node), align));
+ DECL_USER_ALIGN (t) = 1;
descriptor_type = make_node (RECORD_TYPE);
TYPE_NAME (descriptor_type) = get_identifier ("__builtin_descriptor");
> Thanks, that at least fixes tasking. Great, here's what I have installed on the mainline (it only affects the Ada compiler) after testing on x86-64/Linux, Aarch64/Linux and SPARC/Solaris. 2017-04-03 Eric Botcazou <ebotcazou@adacore.com> * tree-nested.c (get_descriptor_type): Make sure that the alignment of descriptors is at least equal to that of functions.