--- old/src/os_cpu/solaris_x86/vm/orderAccess_solaris_x86.inline.hpp	2015-01-22 17:49:07.198152228 -0500
+++ new/src/os_cpu/solaris_x86/vm/orderAccess_solaris_x86.inline.hpp	2015-01-22 17:49:05.902077151 -0500
@@ -31,108 +31,30 @@
 
 // Implementation of class OrderAccess.
 
-// For Sun Studio - implementation is in solaris_i486.il.
-// For gcc - implementation is just below.
-extern "C" void _OrderAccess_acquire();
-extern "C" void _OrderAccess_fence();
-
-inline void OrderAccess::loadload()   { acquire(); }
-inline void OrderAccess::storestore() { release(); }
-inline void OrderAccess::loadstore()  { acquire(); }
-inline void OrderAccess::storeload()  { fence(); }
-
-inline void OrderAccess::acquire() {
-  _OrderAccess_acquire();
-
+// A compiler barrier, forcing the C++ compiler to invalidate all memory assumptions
+inline void compiler_barrier() {
+  __asm__ volatile ("" : : : "memory");
 }
 
-inline void OrderAccess::release() {
-  // Avoid hitting the same cache-line from
-  // different threads.
-  volatile jint local_dummy = 0;
-}
+inline void OrderAccess::loadload()   { compiler_barrier(); }
+inline void OrderAccess::storestore() { compiler_barrier(); }
+inline void OrderAccess::loadstore()  { compiler_barrier(); }
+inline void OrderAccess::storeload()  { fence();            }
+
+inline void OrderAccess::acquire()    { compiler_barrier(); }
+inline void OrderAccess::release()    { compiler_barrier(); }
 
 inline void OrderAccess::fence() {
   if (os::is_MP()) {
-    _OrderAccess_fence();
-  }
-}
-
-#ifdef _GNU_SOURCE
-
-extern "C" {
-  inline void _OrderAccess_acquire() {
-    volatile intptr_t local_dummy;
 #ifdef AMD64
-    __asm__ volatile ("movq 0(%%rsp), %0" : "=r" (local_dummy) : : "memory");
+    __asm__ volatile ("lock; addl $0,0(%%rsp)" : : : "cc", "memory");
 #else
-    __asm__ volatile ("movl 0(%%esp),%0" : "=r" (local_dummy) : : "memory");
-#endif // AMD64
-  }
-  inline void _OrderAccess_fence() {
-    // Always use locked addl since mfence is sometimes expensive
     __asm__ volatile ("lock; addl $0,0(%%esp)" : : : "cc", "memory");
+#endif
   }
-
+  compiler_barrier();
 }
 
-#endif // GNU_SOURCE
-
-inline jbyte    OrderAccess::load_acquire(volatile jbyte*   p) { return *p; }
-inline jshort   OrderAccess::load_acquire(volatile jshort*  p) { return *p; }
-inline jint     OrderAccess::load_acquire(volatile jint*    p) { return *p; }
-inline jlong    OrderAccess::load_acquire(volatile jlong*   p) { return Atomic::load(p); }
-inline jubyte   OrderAccess::load_acquire(volatile jubyte*  p) { return *p; }
-inline jushort  OrderAccess::load_acquire(volatile jushort* p) { return *p; }
-inline juint    OrderAccess::load_acquire(volatile juint*   p) { return *p; }
-inline julong   OrderAccess::load_acquire(volatile julong*  p) { return Atomic::load((volatile jlong*)p); }
-inline jfloat   OrderAccess::load_acquire(volatile jfloat*  p) { return *p; }
-inline jdouble  OrderAccess::load_acquire(volatile jdouble* p) { return jdouble_cast(Atomic::load((volatile jlong*)p)); }
-
-inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t*   p) { return *p; }
-inline void*    OrderAccess::load_ptr_acquire(volatile void*       p) { return *(void* volatile *)p; }
-inline void*    OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; }
-
-inline void     OrderAccess::release_store(volatile jbyte*   p, jbyte   v) { *p = v; }
-inline void     OrderAccess::release_store(volatile jshort*  p, jshort  v) { *p = v; }
-inline void     OrderAccess::release_store(volatile jint*    p, jint    v) { *p = v; }
-inline void     OrderAccess::release_store(volatile jlong*   p, jlong   v) { Atomic::store(v, p); }
-inline void     OrderAccess::release_store(volatile jubyte*  p, jubyte  v) { *p = v; }
-inline void     OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; }
-inline void     OrderAccess::release_store(volatile juint*   p, juint   v) { *p = v; }
-inline void     OrderAccess::release_store(volatile julong*  p, julong  v) { Atomic::store((jlong)v, (volatile jlong*)p); }
-inline void     OrderAccess::release_store(volatile jfloat*  p, jfloat  v) { *p = v; }
-inline void     OrderAccess::release_store(volatile jdouble* p, jdouble v) { release_store((volatile jlong*)p, jlong_cast(v)); }
-
-inline void     OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; }
-inline void     OrderAccess::release_store_ptr(volatile void*     p, void*    v) { *(void* volatile *)p = v; }
-
-inline void     OrderAccess::store_fence(jbyte*   p, jbyte   v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(jshort*  p, jshort  v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(jint*    p, jint    v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(jlong*   p, jlong   v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(jubyte*  p, jubyte  v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(juint*   p, juint   v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(julong*  p, julong  v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(jfloat*  p, jfloat  v) { *p = v; fence(); }
-inline void     OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }
-
-inline void     OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); }
-inline void     OrderAccess::store_ptr_fence(void**    p, void*    v) { *p = v; fence(); }
-
-inline void     OrderAccess::release_store_fence(volatile jbyte*   p, jbyte   v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_fence(volatile jshort*  p, jshort  v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_fence(volatile jint*    p, jint    v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_fence(volatile jlong*   p, jlong   v) { release_store(p, v); fence(); }
-inline void     OrderAccess::release_store_fence(volatile jubyte*  p, jubyte  v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_fence(volatile juint*   p, juint   v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_fence(volatile julong*  p, julong  v) { release_store((jlong *)p, (jlong)v); fence(); }
-inline void     OrderAccess::release_store_fence(volatile jfloat*  p, jfloat  v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { release_store_fence((volatile jlong*)p, jlong_cast(v)); }
-
-inline void     OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); }
-inline void     OrderAccess::release_store_ptr_fence(volatile void*     p, void*    v) { *(void* volatile *)p = v; fence(); }
+#define VM_HAS_GENERALIZED_ORDER_ACCESS 1
 
 #endif // OS_CPU_SOLARIS_X86_VM_ORDERACCESS_SOLARIS_X86_INLINE_HPP