wined3d: Use YieldProcessor().

dlls/wined3d/cs.c

@@ -646,7 +646,7 @@ void wined3d_cs_emit_present(struct wined3d_cs *cs, struct wined3d_swapchain *sw
      * ahead of the worker thread. */
     while (pending >= swapchain->max_frame_latency)
     {
-        wined3d_pause();
+        YieldProcessor();
         pending = InterlockedCompareExchange(&cs->pending_presents, 0, 0);
     }
 }
@@ -2822,7 +2822,7 @@ static void wined3d_cs_mt_finish(struct wined3d_cs *cs, enum wined3d_cs_queue_id
         return wined3d_cs_st_finish(cs, queue_id);
 
     while (cs->queue[queue_id].head != *(volatile LONG *)&cs->queue[queue_id].tail)
-        wined3d_pause();
+        YieldProcessor();
 }
 
 static const struct wined3d_cs_ops wined3d_cs_mt_ops =

dlls/wined3d/wined3d_private.h

@@ -424,13 +424,6 @@ static inline unsigned int wined3d_popcount(unsigned int x)
 #endif
 }
 
-static inline void wined3d_pause(void)
-{
-#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
-    __asm__ __volatile__( "rep;nop" : : : "memory" );
-#endif
-}
-
 #define ORM_BACKBUFFER  0
 #define ORM_FBO         1
 
@@ -4817,7 +4810,7 @@ static inline void wined3d_resource_wait_idle(struct wined3d_resource *resource)
         return;
 
     while (InterlockedCompareExchange(&resource->access_count, 0, 0))
-        wined3d_pause();
+        YieldProcessor();
 }
 
 /* TODO: Add tests and support for FLOAT16_4 POSITIONT, D3DCOLOR position, other