Intrin.h: Implement _InterlockedExchangePointer
llvm-svn: 204827
diff --git a/clang/lib/Headers/Intrin.h b/clang/lib/Headers/Intrin.h
index 2ed8830..90a218e 100644
--- a/clang/lib/Headers/Intrin.h
+++ b/clang/lib/Headers/Intrin.h
@@ -422,6 +422,7 @@
__int64 _InterlockedExchange64(__int64 volatile *_Target, __int64 _Value);
static __inline__
__int64 _InterlockedExchangeAdd64(__int64 volatile *_Addend, __int64 _Value);
+static __inline__
void *_InterlockedExchangePointer(void *volatile *_Target, void *_Value);
static __inline__
__int64 _InterlockedIncrement64(__int64 volatile *_Addend);
@@ -795,6 +796,11 @@
__atomic_exchange(_Target, &_Value, &_Value, 0);
return _Value;
}
+static __inline__ void *__attribute__((__always_inline__, __nodebug__))
+_InterlockedExchangePointer(void *volatile *_Target, void *_Value) {
+ __atomic_exchange(_Target, &_Value, &_Value, 0);
+ return _Value;
+}
#endif
/*----------------------------------------------------------------------------*\
|* Interlocked Compare Exchange