TeamHepta/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2026-04-25 10:58:46 +02:00
Code Issues Packages Projects Releases Wiki Activity

atomic: Use acquire/release InterlockedExchange intrinsics on ARM64EC

Browse Source 
(cherry picked from commit 0220a41a2e)
This commit is contained in:
Cameron Gutman
2026-04-24 18:26:10 -05:00
parent da0e3abd41
commit 604a4dfa69
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/atomic/SDL_spinlock.c
View File

@@ -50,7 +50,7 @@ bool SDL_TryLockSpinlock(SDL_SpinLock *lock)
#if defined(HAVE_GCC_ATOMICS) || defined(HAVE_GCC_SYNC_LOCK_TEST_AND_SET)
return __sync_lock_test_and_set(lock, 1) == 0;
#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64) || defined(_M_ARM64EC))
SDL_COMPILE_TIME_ASSERT(locksize, sizeof(*lock) == sizeof(long));
return _InterlockedExchange_acq((long *)lock, 1) == 0;
@@ -167,7 +167,7 @@ void SDL_UnlockSpinlock(SDL_SpinLock *lock)
#if defined(HAVE_GCC_ATOMICS) || defined(HAVE_GCC_SYNC_LOCK_TEST_AND_SET)
__sync_lock_release(lock);
#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
#elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64) || defined(_M_ARM64EC))
SDL_COMPILE_TIME_ASSERT(locksize, sizeof(*lock) == sizeof(long));
_InterlockedExchange_rel((long *)lock, 0);