From 7f2dec46cade6340aeda9503ba70c4da266818b0 Mon Sep 17 00:00:00 2001
From: RipleyTom <RipleyTom@users.noreply.github.com>
Date: Sat, 14 Feb 2026 14:16:37 +0100
Subject: [PATCH] Ignore gcc strict aliasing warnings on
 __sync_lock_test_and_set

---
 rpcs3/util/atomic.hpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/rpcs3/util/atomic.hpp b/rpcs3/util/atomic.hpp
index 4503eaac61..f77aad7825 100644
--- a/rpcs3/util/atomic.hpp
+++ b/rpcs3/util/atomic.hpp
@@ -1011,7 +1011,12 @@ struct atomic_storage<T, 16> : atomic_storage<T, 0>
 	static inline T exchange(T& dest, T value)
 	{
 		__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)));
+		#pragma GCC diagnostic pop
 	}
 
 	static inline void store(T& dest, T value)