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From: "joseph at codesourcery dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/94338] struct member alignment is not carried over to
 alignment of struct variable
Date: Thu, 26 Mar 2020 17:50:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94338

--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery =
dot com> ---
It's a mistake to be referring to the C standard for the interpretation of=
=20
alignment attributes.  The C standard way of specifying alignment is=20
_Alignas, not __attribute__, and if you write equivalent code using=20
_Alignas you get an error "error: '_Alignas' specifiers cannot reduce=20
alignment of 'A'", which corresponds to the constraint "The combined=20
effect of all alignment specifiers in a declaration shall not specify an=20
alignment that is less strict than the alignment that would otherwise be=20
required for the type of the object or member being declared.".=