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src/hotspot/share/oops/accessBackend.inline.hpp
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*** 101,121 ****
return oop_atomic_cmpxchg(new_value, field_addr(base, offset), compare_value);
}
template <DecoratorSet decorators>
template <typename T>
! inline T RawAccessBarrier<decorators>::oop_atomic_xchg(T new_value, void* addr) {
typedef typename AccessInternal::EncodedType<decorators, T>::type Encoded;
Encoded encoded_new = encode(new_value);
! Encoded encoded_result = atomic_xchg(encoded_new, reinterpret_cast<Encoded*>(addr));
return decode<T>(encoded_result);
}
template <DecoratorSet decorators>
template <typename T>
! inline T RawAccessBarrier<decorators>::oop_atomic_xchg_at(T new_value, oop base, ptrdiff_t offset) {
! return oop_atomic_xchg(new_value, field_addr(base, offset));
}
template <DecoratorSet decorators>
template <typename T>
inline bool RawAccessBarrier<decorators>::oop_arraycopy(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
--- 101,121 ----
return oop_atomic_cmpxchg(new_value, field_addr(base, offset), compare_value);
}
template <DecoratorSet decorators>
template <typename T>
! inline T RawAccessBarrier<decorators>::oop_atomic_xchg(void* addr, T new_value) {
typedef typename AccessInternal::EncodedType<decorators, T>::type Encoded;
Encoded encoded_new = encode(new_value);
! Encoded encoded_result = atomic_xchg(reinterpret_cast<Encoded*>(addr), encoded_new);
return decode<T>(encoded_result);
}
template <DecoratorSet decorators>
template <typename T>
! inline T RawAccessBarrier<decorators>::oop_atomic_xchg_at(oop base, ptrdiff_t offset, T new_value) {
! return oop_atomic_xchg(field_addr(base, offset), new_value);
}
template <DecoratorSet decorators>
template <typename T>
inline bool RawAccessBarrier<decorators>::oop_arraycopy(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
*** 201,226 ****
template <DecoratorSet decorators>
template <DecoratorSet ds, typename T>
inline typename EnableIf<
HasDecorator<ds, MO_SEQ_CST>::value, T>::type
! RawAccessBarrier<decorators>::atomic_xchg_internal(T new_value, void* addr) {
! return Atomic::xchg(new_value,
! reinterpret_cast<volatile T*>(addr));
}
// For platforms that do not have native support for wide atomics,
// we can emulate the atomicity using a lock. So here we check
// whether that is necessary or not.
template <DecoratorSet ds>
template <DecoratorSet decorators, typename T>
inline typename EnableIf<
AccessInternal::PossiblyLockedAccess<T>::value, T>::type
! RawAccessBarrier<ds>::atomic_xchg_maybe_locked(T new_value, void* addr) {
if (!AccessInternal::wide_atomic_needs_locking()) {
! return atomic_xchg_internal<ds>(new_value, addr);
} else {
AccessInternal::AccessLocker access_lock;
volatile T* p = reinterpret_cast<volatile T*>(addr);
T old_val = RawAccess<>::load(p);
RawAccess<>::store(p, new_value);
--- 201,226 ----
template <DecoratorSet decorators>
template <DecoratorSet ds, typename T>
inline typename EnableIf<
HasDecorator<ds, MO_SEQ_CST>::value, T>::type
! RawAccessBarrier<decorators>::atomic_xchg_internal(void* addr, T new_value) {
! return Atomic::xchg(reinterpret_cast<volatile T*>(addr),
! new_value);
}
// For platforms that do not have native support for wide atomics,
// we can emulate the atomicity using a lock. So here we check
// whether that is necessary or not.
template <DecoratorSet ds>
template <DecoratorSet decorators, typename T>
inline typename EnableIf<
AccessInternal::PossiblyLockedAccess<T>::value, T>::type
! RawAccessBarrier<ds>::atomic_xchg_maybe_locked(void* addr, T new_value) {
if (!AccessInternal::wide_atomic_needs_locking()) {
! return atomic_xchg_internal<ds>(addr, new_value);
} else {
AccessInternal::AccessLocker access_lock;
volatile T* p = reinterpret_cast<volatile T*>(addr);
T old_val = RawAccess<>::load(p);
RawAccess<>::store(p, new_value);
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