Fixed 64-bit atomics on Win x86 and removed support for 8 and 16-bit atomic operations

include/atomic/generic-msvc.h

@@ -37,29 +37,18 @@
 C_MODE_START
 /*Visual Studio 2003 and earlier do not have prototypes for atomic intrinsics*/
 LONG _InterlockedExchange (LONG volatile *Target,LONG Value);
-LONGLONG _InterlockedExchange64 (LONGLONG volatile *Target,LONGLONG Value);
-LONG _InterlockedCompareExchange (LONG volatile *Target,
-                                  LONG Value, LONG Comp);
-LONGLONG _InterlockedCompareExchange64 (LONGLONG volatile *Target,
-                                        LONGLONG Value, LONGLONG Comp);
+LONG _InterlockedCompareExchange (LONG volatile *Target, LONG Value, LONG Comp);
 LONG _InterlockedExchangeAdd (LONG volatile *Addend, LONG Value);
-LONGLONG _InterlockedExchangeAdd64 (LONGLONG volatile *Addend, LONGLONG Value);
 C_MODE_END
 
 #pragma intrinsic(_InterlockedExchangeAdd)
 #pragma intrinsic(_InterlockedCompareExchange)
 #pragma intrinsic(_InterlockedExchange)
-#pragma intrinsic(_InterlockedExchangeAdd64)
-#pragma intrinsic(_InterlockedCompareExchange64)
-#pragma intrinsic(_InterlockedExchange64)
 #endif
 
 #define InterlockedExchange        _InterlockedExchange
 #define InterlockedExchangeAdd     _InterlockedExchangeAdd
 #define InterlockedCompareExchange _InterlockedCompareExchange
-#define InterlockedExchange64      _InterlockedExchange64
-#define InterlockedExchangeAdd64   _InterlockedExchangeAdd64
-#define InterlockedCompareExchange64 _InterlockedCompareExchange64
 /*
  No need to do something special for InterlockedCompareExchangePointer
  as it is a #define to InterlockedCompareExchange. The same applies to

include/my_atomic.h

@@ -56,11 +56,10 @@
 
 #define intptr         void *
 /**
-  On most platforms we implement 8-bit, 16-bit, 32-bit and "pointer"
-  operations. Thus the symbol below is defined by default; platforms
-  where we leave out 8-bit or 16-bit operations should undefine it.
+  Currently we don't support 8-bit and 16-bit operations.
+  It can be added later if needed.
 */
-#define MY_ATOMIC_HAS_8_16 1
+#undef MY_ATOMIC_HAS_8_16
 
 #ifndef MY_ATOMIC_MODE_RWLOCKS
 /*