> Tested on Aarch64/Linux by Richard S. (thanks!) and on x86-64/Linux by me,
> and applied on the mainline.

It turns out that it slightly broke the x86/Linux compiler, which is not yet 
an acceptable trade-off.  Adjusted like this, tested on x86[_64]/Linux, this 
should not change anything for Aarch64 in particular.


	PR bootstrap/109510
	* gcc-interface/decl.cc (gnat_to_gnu_entity) <types>: Do not reset
	align to zero in any case.  Set TYPE_USER_ALIGN on the type only if
	it is an aggregate type, or else a type whose default alignment is
	specifically capped on selected platforms.

-- 
Eric Botcazou