--- a/hotspot/src/share/vm/runtime/atomic.hpp	Fri Apr 11 09:56:35 2008 -0400
+++ b/hotspot/src/share/vm/runtime/atomic.hpp	Sun Apr 13 17:43:42 2008 -0400
@@ -55,7 +55,10 @@
   static void dec_ptr(volatile void*     dest);
 
   // Performs atomic exchange of *dest with exchange_value.  Returns old prior value of *dest.
-  static jint     xchg    (jint     exchange_value, volatile jint*     dest);
+  static jint         xchg(jint     exchange_value, volatile jint*     dest);
+  static unsigned int xchg(unsigned int exchange_value,
+                           volatile unsigned int* dest);
+
   static intptr_t xchg_ptr(intptr_t exchange_value, volatile intptr_t* dest);
   static void*    xchg_ptr(void*    exchange_value, volatile void*   dest);
 
@@ -65,6 +68,11 @@
   static jbyte    cmpxchg    (jbyte    exchange_value, volatile jbyte*    dest, jbyte    compare_value);
   static jint     cmpxchg    (jint     exchange_value, volatile jint*     dest, jint     compare_value);
   static jlong    cmpxchg    (jlong    exchange_value, volatile jlong*    dest, jlong    compare_value);
+
+  static unsigned int cmpxchg(unsigned int exchange_value,
+                              volatile unsigned int* dest,
+                              unsigned int compare_value);
+
   static intptr_t cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value);
   static void*    cmpxchg_ptr(void*    exchange_value, volatile void*     dest, void*    compare_value);
 };