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src/os_cpu/solaris_sparc/vm/atomic_solaris_sparc.hpp
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rev 13488 : [mq]: add_solaris_sparc
@@ -60,26 +60,25 @@
// omits the instruction set check.
extern "C" jint _Atomic_swap32(jint exchange_value, volatile jint* dest);
extern "C" intptr_t _Atomic_swap64(intptr_t exchange_value, volatile intptr_t* dest);
-extern "C" jint _Atomic_add32(jint inc, volatile jint* dest);
-extern "C" intptr_t _Atomic_add64(intptr_t add_value, volatile intptr_t* dest);
-
-
-inline jint Atomic::add (jint add_value, volatile jint* dest) {
- return _Atomic_add32(add_value, dest);
-}
-
-inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest) {
- return _Atomic_add64(add_value, dest);
-}
-
-inline void* Atomic::add_ptr(intptr_t add_value, volatile void* dest) {
- return (void*)add_ptr((intptr_t)add_value, (volatile intptr_t*)dest);
-}
-
+// Implement ADD using a CAS loop.
+template<size_t byte_size>
+struct Atomic::PlatformAdd VALUE_OBJ_CLASS_SPEC {
+ template<typename I, typename D>
+ inline D operator()(I add_value, D volatile* dest) const {
+ D old_value = *dest;
+ while (true) {
+ D new_value = old_value + add_value;
+ D result = cmpxchg(new_value, dest, old_value);
+ if (result == old_value) break;
+ old_value = result;
+ }
+ return old_value + add_value;
+ }
+};
inline jint Atomic::xchg (jint exchange_value, volatile jint* dest) {
return _Atomic_swap32(exchange_value, dest);
}
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