Differential D26159 Diff 76191 head/contrib/llvm-project/compiler-rt/lib/builtins/atomic.c

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Show First 20 Lines • Show All 119 Lines • ▼ Show 20 Lines	static __inline Lock lock_for_pointer(void ptr) {
return locks + (hash & SPINLOCK_MASK);		return locks + (hash & SPINLOCK_MASK);
}		}

/// Macros for determining whether a size is lock free.		/// Macros for determining whether a size is lock free.
#define IS_LOCK_FREE_1 __c11_atomic_is_lock_free(1)		#define IS_LOCK_FREE_1 __c11_atomic_is_lock_free(1)
#define IS_LOCK_FREE_2 __c11_atomic_is_lock_free(2)		#define IS_LOCK_FREE_2 __c11_atomic_is_lock_free(2)
#define IS_LOCK_FREE_4 __c11_atomic_is_lock_free(4)		#define IS_LOCK_FREE_4 __c11_atomic_is_lock_free(4)

/// 32 bit PowerPC doesn't support 8-byte lock_free atomics		/// 32 bit MIPS and PowerPC don't support 8-byte lock_free atomics
#if !defined(__powerpc64__) && defined(__powerpc__)		#if defined(__mips__) \|\| (!defined(__powerpc64__) && defined(__powerpc__))
#define IS_LOCK_FREE_8 0		#define IS_LOCK_FREE_8 0
#else		#else
#define IS_LOCK_FREE_8 __c11_atomic_is_lock_free(8)		#define IS_LOCK_FREE_8 __c11_atomic_is_lock_free(8)
#endif		#endif

/// Clang can not yet codegen __atomic_is_lock_free(16), so for now we assume		/// Clang can not yet codegen __atomic_is_lock_free(16), so for now we assume
/// 16-byte values are not lock free.		/// 16-byte values are not lock free.
#define IS_LOCK_FREE_16 0		#define IS_LOCK_FREE_16 0
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