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src/os_cpu/linux_aarch64/vm/atomic_linux_aarch64.hpp
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rev 13466 : imported patch linux_aarch64
rev 13472 : imported patch coleen_review1
@@ -83,34 +83,27 @@
{
return (void *) xchg_ptr((intptr_t) exchange_value,
(volatile intptr_t*) dest);
}
-template <typename T> T generic_cmpxchg(T exchange_value, volatile T* dest,
- T compare_value, cmpxchg_memory_order order)
-{
+template<size_t byte_size>
+template<typename T>
+inline T Atomic::PlatformCmpxchg<byte_size>::operator()(T exchange_value,
+ T volatile* dest,
+ T compare_value,
+ cmpxchg_memory_order) const {
+ STATIC_ASSERT(byte_size == sizeof(T));
if (order == memory_order_relaxed) {
T value = compare_value;
__atomic_compare_exchange(dest, &value, &exchange_value, /*weak*/false,
__ATOMIC_RELAXED, __ATOMIC_RELAXED);
return value;
} else {
return __sync_val_compare_and_swap(dest, compare_value, exchange_value);
}
}
-#define VM_HAS_SPECIALIZED_CMPXCHG_BYTE
-inline jbyte Atomic::cmpxchg (jbyte exchange_value, volatile jbyte* dest, jbyte compare_value, cmpxchg_memory_order order)
-{
- return generic_cmpxchg(exchange_value, dest, compare_value, order);
-}
-
-inline jint Atomic::cmpxchg (jint exchange_value, volatile jint* dest, jint compare_value, cmpxchg_memory_order order)
-{
- return generic_cmpxchg(exchange_value, dest, compare_value, order);
-}
-
inline void Atomic::store (jlong store_value, jlong* dest) { *dest = store_value; }
inline void Atomic::store (jlong store_value, volatile jlong* dest) { *dest = store_value; }
inline intptr_t Atomic::add_ptr(intptr_t add_value, volatile intptr_t* dest)
{
@@ -137,26 +130,8 @@
intptr_t res = __sync_lock_test_and_set (dest, exchange_value);
FULL_MEM_BARRIER;
return res;
}
-inline jlong Atomic::cmpxchg (jlong exchange_value, volatile jlong* dest, jlong compare_value, cmpxchg_memory_order order)
-{
- return generic_cmpxchg(exchange_value, dest, compare_value, order);
-}
-
-inline intptr_t Atomic::cmpxchg_ptr(intptr_t exchange_value, volatile intptr_t* dest, intptr_t compare_value, cmpxchg_memory_order order)
-{
- return generic_cmpxchg(exchange_value, dest, compare_value, order);
-}
-
-inline void* Atomic::cmpxchg_ptr(void* exchange_value, volatile void* dest, void* compare_value, cmpxchg_memory_order order)
-{
- return (void *) cmpxchg_ptr((intptr_t) exchange_value,
- (volatile intptr_t*) dest,
- (intptr_t) compare_value,
- order);
-}
-
inline jlong Atomic::load(const volatile jlong* src) { return *src; }
#endif // OS_CPU_LINUX_AARCH64_VM_ATOMIC_LINUX_AARCH64_HPP
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