r204827 - Intrin.h: Implement _InterlockedExchangePointer

[Reid Kleckner]

Author: rnk
Date: Wed Mar 26 11:09:48 2014
New Revision: 204827

URL: http://llvm.org/viewvc/llvm-project?rev=204827&view=rev
Log:
Intrin.h: Implement _InterlockedExchangePointer

Modified:
    cfe/trunk/lib/Headers/Intrin.h

Modified: cfe/trunk/lib/Headers/Intrin.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/Intrin.h?rev=204827&r1=204826&r2=204827&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/Intrin.h (original)
+++ cfe/trunk/lib/Headers/Intrin.h Wed Mar 26 11:09:48 2014
@@ -422,6 +422,7 @@ static __inline__
 __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 @@ _InterlockedExchange64(__int64 volatile
   __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