[Bug libstdc++/122267] [16 regression] 29_atomics/atomic_ref/float.cc FAIL on i686-linux

[tkaminsk at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122267

--- Comment #5 from Tomasz Kamiński <tkaminsk at gcc dot gnu.org> ---
I have realized that I have unintionally changed
atomic_ref<double>::required_aligment from __alignof__(double) is 8 to
alignof(double) which is 4.

The atomic_ref<double> constructor requires that the object is aligned to
required_aligment, so you cannot bind atomic_ref to s.b in your example if it's
aligment is not 4.