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glibc/sysdeps/generic
Wilco Dijkstra 324c088a18 nptl: Remove ATOMIC_EXCHANGE_USES_CAS usage
The only usage was for pthread_spin_lock, introduced by 12d2dd7060,
as a way to optimize the code for certain architectures. Now that atomic
builtins are used by default, let the compiler use the best code sequence
for the atomic exchange.

Co-authored-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>
2025-11-04 04:14:01 -03:00
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