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8198445: Access API for primitive/native arraycopy

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Reviewed-by: pliden, eosterlund, dholmes
This commit is contained in:
Roman Kennke 2018-03-13 17:13:35 +01:00
parent 8680d7da99
commit 147488cbce
8 changed files with 49 additions and 24 deletions
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9
src/hotspot/share/oops/access.inline.hpp
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@ -139,7 +139,8 @@ namespace AccessInternal {
struct PostRuntimeDispatch<GCBarrierType, BARRIER_ARRAYCOPY, decorators>: public AllStatic {
template <typename T>
static bool access_barrier(arrayOop src_obj, arrayOop dst_obj, T* src, T* dst, size_t length) {
return GCBarrierType::arraycopy_in_heap(src_obj, dst_obj, src, dst, length);
GCBarrierType::arraycopy_in_heap(src_obj, dst_obj, src, dst, length);
return true;
}
template <typename T>
@ -763,7 +764,7 @@ namespace AccessInternal {
HasDecorator<decorators, AS_RAW>::value, bool>::type
arraycopy(arrayOop src_obj, arrayOop dst_obj, T *src, T* dst, size_t length) {
typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
return Raw::arraycopy(src, dst, length);
return Raw::arraycopy(src_obj, dst_obj, src, dst, length);
}
template <DecoratorSet decorators, typename T>
@ -1077,7 +1078,9 @@ namespace AccessInternal {
template <DecoratorSet decorators, typename T>
inline bool arraycopy(arrayOop src_obj, arrayOop dst_obj, T *src, T *dst, size_t length) {
verify_types<decorators, T>();
STATIC_ASSERT((HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value ||
(IsSame<T, void>::value || IsIntegral<T>::value) ||
IsFloatingPoint<T>::value)); // arraycopy allows type erased void elements
typedef typename Decay<T>::type DecayedT;
const DecoratorSet expanded_decorators = DecoratorFixup<decorators | IN_HEAP_ARRAY | IN_HEAP |
(HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value ?