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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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