align(16) struct member throws an exception with movdqa

[ixid]

    struct a
    {   align(16) int[4] test = [1,2,3,4];
    }
    a test;
    asm
    {
            movdqa XMM0, test   ;
            addps XMM0, XMM0    ;
            movdpa test, XMM0   ;
    }

This works fine with unaligned movdqu but throws an access 
violation exception with movdqa. Why isn't align letting me do an 
aligned read? How should I do an aligned read?