[Bug c/94338] struct member alignment is not carried over to alignment of struct variable

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94338

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Btw,

struct X {
    long a __attribute__((__aligned__(128)));
    long b __attribute__((__aligned__(128)));
};
struct X A __attribute__((__aligned__(4)));

is not diagnosed (this is what your testcase is, decomposed).

I can't reproduce the diagnostics you describe in comment#5