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Ignore gcc strict aliasing warnings on __sync_lock_test_and_set

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RipleyTom
2026-02-14 16:56:38 +02:00
committed by Elad
parent 236dc96689
commit 7f2dec46ca
1 changed files with 5 additions and 0 deletions
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rpcs3/util/atomic.hpp
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@@ -1011,7 +1011,12 @@ struct atomic_storage<T, 16> : atomic_storage<T, 0>
static inline T exchange(T& dest, T value) static inline T exchange(T& dest, T value)
{ {
__atomic_thread_fence(__ATOMIC_ACQ_REL); __atomic_thread_fence(__ATOMIC_ACQ_REL);
// GCC has recently started thinking using this instrinsic is breaking strict aliasing rules
// TODO: remove if this ever get fixed in GCC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstrict-aliasing"
return std::bit_cast<T>(__sync_lock_test_and_set(reinterpret_cast<u128*>(&dest), std::bit_cast<u128>(value))); return std::bit_cast<T>(__sync_lock_test_and_set(reinterpret_cast<u128*>(&dest), std::bit_cast<u128>(value)));
#pragma GCC diagnostic pop
} }
static inline void store(T& dest, T value) static inline void store(T& dest, T value)