Ensure result of AO_test_and_set is always AO_TS_CLEAR or AO_TS_SET

(fix of commit cbbf8633)

According to the GCC manual, __atomic_test_and_set() result type is
Bool, thus it is not guaranteed to return AO_TS_SET value.  (E.g., the
function may return 1 while AO_TS_SET is 255, as observed on sparc64
with gcc-12.)

* src/atomic_ops/sysdeps/gcc/generic.h [!AO_PREFER_GENERALIZED]
(AO_test_and_set, AO_test_and_set_acquire, AO_test_and_set_release,
AO_test_and_set_full): Return AO_TS_SET if __atomic_test_and_set()
result is non-zero, AO_TS_CLEAR otherwise.

0 files changed, 0 insertions, 0 deletions