https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81821
Oleg Endo <olegendo at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[RX] __atomic_test_and_set |[RX] xchg_mem<mode> uses
|overwrites adjacent memory |wrong memory operand size
--- Comment #1 from Oleg Endo <olegendo at gcc dot gnu.org> ---
As it turns out, the xchg_mem<mode> pattern does not output a specifier. So
this problem is not only restricted to __atomic_test_and_set, but also to 8 bit
and 16 bit atomic exchange builtins.
