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erik_version
roman_version
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
-#ifndef SHARE_VM_RUNTIME_ACCESS_INLINE_HPP
-#define SHARE_VM_RUNTIME_ACCESS_INLINE_HPP
+#ifndef SHARE_OOPS_ACCESS_INLINE_HPP
+#define SHARE_OOPS_ACCESS_INLINE_HPP
#include "gc/shared/barrierSetConfig.inline.hpp"
-#include "metaprogramming/conditional.hpp"
-#include "metaprogramming/isFloatingPoint.hpp"
-#include "metaprogramming/isIntegral.hpp"
-#include "metaprogramming/isPointer.hpp"
-#include "metaprogramming/isVolatile.hpp"
#include "oops/access.hpp"
#include "oops/accessBackend.inline.hpp"
-#include "runtime/atomic.hpp"
-#include "runtime/orderAccess.inline.hpp"
-// This file outlines the template pipeline of accesses going through the Access
-// API. There are essentially 5 steps for each access.
-// * Step 1: Set default decorators and decay types. This step gets rid of CV qualifiers
-// and sets default decorators to sensible values.
-// * Step 2: Reduce types. This step makes sure there is only a single T type and not
-// multiple types. The P type of the address and T type of the value must
-// match.
-// * Step 3: Pre-runtime dispatch. This step checks whether a runtime call can be
-// avoided, and in that case avoids it (calling raw accesses or
-// primitive accesses in a build that does not require primitive GC barriers)
-// * Step 4: Runtime-dispatch. This step performs a runtime dispatch to the corresponding
-// BarrierSet::AccessBarrier accessor that attaches GC-required barriers
-// to the access.
-// * Step 5: Post-runtime dispatch. This step now casts previously unknown types such
-// as the address type of an oop on the heap (is it oop* or narrowOop*) to
-// the appropriate type. It also splits sufficiently orthogonal accesses into
-// different functions, such as whether the access involves oops or primitives
-// and whether the access is performed on the heap or outside. Then the
-// appropriate BarrierSet::AccessBarrier is called to perform the access.
+// This file outlines the last 2 steps of the template pipeline of accesses going through
+// the Access API.
+// * Step 5.a: Barrier resolution. This step is invoked the first time a runtime-dispatch
+// happens for an access. The appropriate BarrierSet::AccessBarrier accessor
+// is resolved, then the function pointer is updated to that accessor for
+// future invocations.
+// * Step 5.b: Post-runtime dispatch. This step now casts previously unknown types such
+// as the address type of an oop on the heap (is it oop* or narrowOop*) to
+// the appropriate type. It also splits sufficiently orthogonal accesses into
+// different functions, such as whether the access involves oops or primitives
+// and whether the access is performed on the heap or outside. Then the
+// appropriate BarrierSet::AccessBarrier is called to perform the access.
namespace AccessInternal {
-
- // Step 5: Post-runtime dispatch.
+ // Step 5.b: Post-runtime dispatch.
// This class is the last step before calling the BarrierSet::AccessBarrier.
// Here we make sure to figure out types that were not known prior to the
// runtime dispatch, such as whether an oop on the heap is oop or narrowOop.
// We also split orthogonal barriers such as handling primitives vs oops
// and on-heap vs off-heap into different calls to the barrier set.
static oop access_barrier(oop obj) {
return GCBarrierType::resolve(obj);
}
};
+ template <class GCBarrierType, DecoratorSet decorators>
+ struct PostRuntimeDispatch<GCBarrierType, BARRIER_EQUALS, decorators>: public AllStatic {
+ static bool access_barrier(oop o1, oop o2) {
+ return GCBarrierType::equals(o1, o2);
+ }
+ };
+
// Resolving accessors with barriers from the barrier set happens in two steps.
// 1. Expand paths with runtime-decorators, e.g. is UseCompressedOops on or off.
// 2. Expand paths for each BarrierSet available in the system.
template <DecoratorSet decorators, typename FunctionPointerT, BarrierType barrier_type>
struct BarrierResolver: public AllStatic {
static FunctionPointerT resolve_barrier() {
return resolve_barrier_rt();
}
};
- // Step 4: Runtime dispatch
+ // Step 5.a: Barrier resolution
// The RuntimeDispatch class is responsible for performing a runtime dispatch of the
// accessor. This is required when the access either depends on whether compressed oops
// is being used, or it depends on which GC implementation was chosen (e.g. requires GC
// barriers). The way it works is that a function pointer initially pointing to an
// accessor resolution function gets called for each access. Upon first invocation,
// it resolves which accessor to be used in future invocations and patches the
// function pointer to this new accessor.
- template <DecoratorSet decorators, typename T, BarrierType type>
- struct RuntimeDispatch: AllStatic {};
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_STORE>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_STORE>::type func_t;
- static func_t _store_func;
-
- static void store_init(void* addr, T value) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_STORE>::resolve_barrier();
- _store_func = function;
- function(addr, value);
- }
-
- static inline void store(void* addr, T value) {
- _store_func(addr, value);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_STORE_AT>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_STORE_AT>::type func_t;
- static func_t _store_at_func;
-
- static void store_at_init(oop base, ptrdiff_t offset, T value) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_STORE_AT>::resolve_barrier();
- _store_at_func = function;
- function(base, offset, value);
- }
-
- static inline void store_at(oop base, ptrdiff_t offset, T value) {
- _store_at_func(base, offset, value);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_LOAD>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_LOAD>::type func_t;
- static func_t _load_func;
-
- static T load_init(void* addr) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_LOAD>::resolve_barrier();
- _load_func = function;
- return function(addr);
- }
-
- static inline T load(void* addr) {
- return _load_func(addr);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_LOAD_AT>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_LOAD_AT>::type func_t;
- static func_t _load_at_func;
-
- static T load_at_init(oop base, ptrdiff_t offset) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_LOAD_AT>::resolve_barrier();
- _load_at_func = function;
- return function(base, offset);
- }
-
- static inline T load_at(oop base, ptrdiff_t offset) {
- return _load_at_func(base, offset);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_ATOMIC_CMPXCHG>::type func_t;
- static func_t _atomic_cmpxchg_func;
-
- static T atomic_cmpxchg_init(T new_value, void* addr, T compare_value) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_CMPXCHG>::resolve_barrier();
- _atomic_cmpxchg_func = function;
- return function(new_value, addr, compare_value);
- }
-
- static inline T atomic_cmpxchg(T new_value, void* addr, T compare_value) {
- return _atomic_cmpxchg_func(new_value, addr, compare_value);
- }
- };
-
template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG_AT>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_ATOMIC_CMPXCHG_AT>::type func_t;
- static func_t _atomic_cmpxchg_at_func;
-
- static T atomic_cmpxchg_at_init(T new_value, oop base, ptrdiff_t offset, T compare_value) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_CMPXCHG_AT>::resolve_barrier();
- _atomic_cmpxchg_at_func = function;
- return function(new_value, base, offset, compare_value);
- }
-
- static inline T atomic_cmpxchg_at(T new_value, oop base, ptrdiff_t offset, T compare_value) {
- return _atomic_cmpxchg_at_func(new_value, base, offset, compare_value);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_ATOMIC_XCHG>::type func_t;
- static func_t _atomic_xchg_func;
-
- static T atomic_xchg_init(T new_value, void* addr) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_XCHG>::resolve_barrier();
- _atomic_xchg_func = function;
- return function(new_value, addr);
- }
-
- static inline T atomic_xchg(T new_value, void* addr) {
- return _atomic_xchg_func(new_value, addr);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG_AT>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_ATOMIC_XCHG_AT>::type func_t;
- static func_t _atomic_xchg_at_func;
-
- static T atomic_xchg_at_init(T new_value, oop base, ptrdiff_t offset) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_XCHG_AT>::resolve_barrier();
- _atomic_xchg_at_func = function;
- return function(new_value, base, offset);
- }
-
- static inline T atomic_xchg_at(T new_value, oop base, ptrdiff_t offset) {
- return _atomic_xchg_at_func(new_value, base, offset);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_ARRAYCOPY>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_ARRAYCOPY>::type func_t;
- static func_t _arraycopy_func;
-
- static bool arraycopy_init(arrayOop src_obj, arrayOop dst_obj, T *src, T* dst, size_t length) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_ARRAYCOPY>::resolve_barrier();
- _arraycopy_func = function;
- return function(src_obj, dst_obj, src, dst, length);
- }
-
- static inline bool arraycopy(arrayOop src_obj, arrayOop dst_obj, T *src, T* dst, size_t length) {
- return _arraycopy_func(src_obj, dst_obj, src, dst, length);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_CLONE>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_CLONE>::type func_t;
- static func_t _clone_func;
-
- static void clone_init(oop src, oop dst, size_t size) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_CLONE>::resolve_barrier();
- _clone_func = function;
- function(src, dst, size);
- }
-
- static inline void clone(oop src, oop dst, size_t size) {
- _clone_func(src, dst, size);
- }
- };
-
- template <DecoratorSet decorators, typename T>
- struct RuntimeDispatch<decorators, T, BARRIER_RESOLVE>: AllStatic {
- typedef typename AccessFunction<decorators, T, BARRIER_RESOLVE>::type func_t;
- static func_t _resolve_func;
-
- static oop resolve_init(oop obj) {
- func_t function = BarrierResolver<decorators, func_t, BARRIER_RESOLVE>::resolve_barrier();
- _resolve_func = function;
- return function(obj);
- }
-
- static inline oop resolve(oop obj) {
- return _resolve_func(obj);
- }
- };
-
- // Initialize the function pointers to point to the resolving function.
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_STORE>::type
- RuntimeDispatch<decorators, T, BARRIER_STORE>::_store_func = &store_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_STORE_AT>::type
- RuntimeDispatch<decorators, T, BARRIER_STORE_AT>::_store_at_func = &store_at_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_LOAD>::type
- RuntimeDispatch<decorators, T, BARRIER_LOAD>::_load_func = &load_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_LOAD_AT>::type
- RuntimeDispatch<decorators, T, BARRIER_LOAD_AT>::_load_at_func = &load_at_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_ATOMIC_CMPXCHG>::type
- RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG>::_atomic_cmpxchg_func = &atomic_cmpxchg_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_ATOMIC_CMPXCHG_AT>::type
- RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG_AT>::_atomic_cmpxchg_at_func = &atomic_cmpxchg_at_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_ATOMIC_XCHG>::type
- RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG>::_atomic_xchg_func = &atomic_xchg_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_ATOMIC_XCHG_AT>::type
- RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG_AT>::_atomic_xchg_at_func = &atomic_xchg_at_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_ARRAYCOPY>::type
- RuntimeDispatch<decorators, T, BARRIER_ARRAYCOPY>::_arraycopy_func = &arraycopy_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_CLONE>::type
- RuntimeDispatch<decorators, T, BARRIER_CLONE>::_clone_func = &clone_init;
-
- template <DecoratorSet decorators, typename T>
- typename AccessFunction<decorators, T, BARRIER_RESOLVE>::type
- RuntimeDispatch<decorators, T, BARRIER_RESOLVE>::_resolve_func = &resolve_init;
-
- // Step 3: Pre-runtime dispatching.
- // The PreRuntimeDispatch class is responsible for filtering the barrier strength
- // decorators. That is, for AS_RAW, it hardwires the accesses without a runtime
- // dispatch point. Otherwise it goes through a runtime check if hardwiring was
- // not possible.
- struct PreRuntimeDispatch: AllStatic {
- template<DecoratorSet decorators>
- struct CanHardwireRaw: public IntegralConstant<
- bool,
- !HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value || // primitive access
- !HasDecorator<decorators, INTERNAL_CONVERT_COMPRESSED_OOP>::value || // don't care about compressed oops (oop* address)
- HasDecorator<decorators, INTERNAL_RT_USE_COMPRESSED_OOPS>::value> // we can infer we use compressed oops (narrowOop* address)
- {};
-
- static const DecoratorSet convert_compressed_oops = INTERNAL_RT_USE_COMPRESSED_OOPS | INTERNAL_CONVERT_COMPRESSED_OOP;
-
- template<DecoratorSet decorators>
- static bool is_hardwired_primitive() {
- return !HasDecorator<decorators, INTERNAL_BT_BARRIER_ON_PRIMITIVES>::value &&
- !HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value;
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && CanHardwireRaw<decorators>::value>::type
- store(void* addr, T value) {
- typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
- if (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value) {
- Raw::oop_store(addr, value);
- } else {
- Raw::store(addr, value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && !CanHardwireRaw<decorators>::value>::type
- store(void* addr, T value) {
- if (UseCompressedOops) {
- const DecoratorSet expanded_decorators = decorators | convert_compressed_oops;
- PreRuntimeDispatch::store<expanded_decorators>(addr, value);
- } else {
- const DecoratorSet expanded_decorators = decorators & ~convert_compressed_oops;
- PreRuntimeDispatch::store<expanded_decorators>(addr, value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value>::type
- store(void* addr, T value) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- PreRuntimeDispatch::store<expanded_decorators>(addr, value);
- } else {
- RuntimeDispatch<decorators, T, BARRIER_STORE>::store(addr, value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value>::type
- store_at(oop base, ptrdiff_t offset, T value) {
- store<decorators>(field_addr(base, offset), value);
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value>::type
- store_at(oop base, ptrdiff_t offset, T value) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- PreRuntimeDispatch::store_at<expanded_decorators>(base, offset, value);
- } else {
- RuntimeDispatch<decorators, T, BARRIER_STORE_AT>::store_at(base, offset, value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && CanHardwireRaw<decorators>::value, T>::type
- load(void* addr) {
- typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
- if (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value) {
- return Raw::template oop_load<T>(addr);
- } else {
- return Raw::template load<T>(addr);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && !CanHardwireRaw<decorators>::value, T>::type
- load(void* addr) {
- if (UseCompressedOops) {
- const DecoratorSet expanded_decorators = decorators | convert_compressed_oops;
- return PreRuntimeDispatch::load<expanded_decorators, T>(addr);
- } else {
- const DecoratorSet expanded_decorators = decorators & ~convert_compressed_oops;
- return PreRuntimeDispatch::load<expanded_decorators, T>(addr);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value, T>::type
- load(void* addr) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- return PreRuntimeDispatch::load<expanded_decorators, T>(addr);
- } else {
- return RuntimeDispatch<decorators, T, BARRIER_LOAD>::load(addr);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value, T>::type
- load_at(oop base, ptrdiff_t offset) {
- return load<decorators, T>(field_addr(base, offset));
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value, T>::type
- load_at(oop base, ptrdiff_t offset) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- return PreRuntimeDispatch::load_at<expanded_decorators, T>(base, offset);
- } else {
- return RuntimeDispatch<decorators, T, BARRIER_LOAD_AT>::load_at(base, offset);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && CanHardwireRaw<decorators>::value, T>::type
- atomic_cmpxchg(T new_value, void* addr, T compare_value) {
- typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
- if (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value) {
- return Raw::oop_atomic_cmpxchg(new_value, addr, compare_value);
- } else {
- return Raw::atomic_cmpxchg(new_value, addr, compare_value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && !CanHardwireRaw<decorators>::value, T>::type
- atomic_cmpxchg(T new_value, void* addr, T compare_value) {
- if (UseCompressedOops) {
- const DecoratorSet expanded_decorators = decorators | convert_compressed_oops;
- return PreRuntimeDispatch::atomic_cmpxchg<expanded_decorators>(new_value, addr, compare_value);
- } else {
- const DecoratorSet expanded_decorators = decorators & ~convert_compressed_oops;
- return PreRuntimeDispatch::atomic_cmpxchg<expanded_decorators>(new_value, addr, compare_value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value, T>::type
- atomic_cmpxchg(T new_value, void* addr, T compare_value) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- return PreRuntimeDispatch::atomic_cmpxchg<expanded_decorators>(new_value, addr, compare_value);
- } else {
- return RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG>::atomic_cmpxchg(new_value, addr, compare_value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value, T>::type
- atomic_cmpxchg_at(T new_value, oop base, ptrdiff_t offset, T compare_value) {
- return atomic_cmpxchg<decorators>(new_value, field_addr(base, offset), compare_value);
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value, T>::type
- atomic_cmpxchg_at(T new_value, oop base, ptrdiff_t offset, T compare_value) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- return PreRuntimeDispatch::atomic_cmpxchg_at<expanded_decorators>(new_value, base, offset, compare_value);
- } else {
- return RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG_AT>::atomic_cmpxchg_at(new_value, base, offset, compare_value);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && CanHardwireRaw<decorators>::value, T>::type
- atomic_xchg(T new_value, void* addr) {
- typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
- if (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value) {
- return Raw::oop_atomic_xchg(new_value, addr);
- } else {
- return Raw::atomic_xchg(new_value, addr);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && !CanHardwireRaw<decorators>::value, T>::type
- atomic_xchg(T new_value, void* addr) {
- if (UseCompressedOops) {
- const DecoratorSet expanded_decorators = decorators | convert_compressed_oops;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, addr);
- } else {
- const DecoratorSet expanded_decorators = decorators & ~convert_compressed_oops;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, addr);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value, T>::type
- atomic_xchg(T new_value, void* addr) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, addr);
- } else {
- return RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG>::atomic_xchg(new_value, addr);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value, T>::type
- atomic_xchg_at(T new_value, oop base, ptrdiff_t offset) {
- return atomic_xchg<decorators>(new_value, field_addr(base, offset));
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value, T>::type
- atomic_xchg_at(T new_value, oop base, ptrdiff_t offset) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, base, offset);
- } else {
- return RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG_AT>::atomic_xchg_at(new_value, base, offset);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && CanHardwireRaw<decorators>::value, bool>::type
- arraycopy(arrayOop src_obj, arrayOop dst_obj, T* src, T* dst, size_t length) {
- typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
- if (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value) {
- return Raw::oop_arraycopy(src_obj, dst_obj, src, dst, length);
- } else {
- return Raw::arraycopy(src_obj, dst_obj, src, dst, length);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value && !CanHardwireRaw<decorators>::value, bool>::type
- arraycopy(arrayOop src_obj, arrayOop dst_obj, T* src, T* dst, size_t length) {
- if (UseCompressedOops) {
- const DecoratorSet expanded_decorators = decorators | convert_compressed_oops;
- return PreRuntimeDispatch::arraycopy<expanded_decorators>(src_obj, dst_obj, src, dst, length);
- } else {
- const DecoratorSet expanded_decorators = decorators & ~convert_compressed_oops;
- return PreRuntimeDispatch::arraycopy<expanded_decorators>(src_obj, dst_obj, src, dst, length);
- }
- }
-
- template <DecoratorSet decorators, typename T>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value, bool>::type
- arraycopy(arrayOop src_obj, arrayOop dst_obj, T* src, T* dst, size_t length) {
- if (is_hardwired_primitive<decorators>()) {
- const DecoratorSet expanded_decorators = decorators | AS_RAW;
- return PreRuntimeDispatch::arraycopy<expanded_decorators>(src_obj, dst_obj, src, dst, length);
- } else {
- return RuntimeDispatch<decorators, T, BARRIER_ARRAYCOPY>::arraycopy(src_obj, dst_obj, src, dst, length);
- }
- }
-
- template <DecoratorSet decorators>
- inline static typename EnableIf<
- HasDecorator<decorators, AS_RAW>::value>::type
- clone(oop src, oop dst, size_t size) {
- typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
- Raw::clone(src, dst, size);
- }
-
- template <DecoratorSet decorators>
- inline static typename EnableIf<
- !HasDecorator<decorators, AS_RAW>::value>::type
- clone(oop src, oop dst, size_t size) {
- RuntimeDispatch<decorators, oop, BARRIER_CLONE>::clone(src, dst, size);
- }
-
- template <DecoratorSet decorators>
- inline static typename EnableIf<
- HasDecorator<decorators, INTERNAL_BT_TO_SPACE_INVARIANT>::value, oop>::type
- resolve(oop obj) {
- typedef RawAccessBarrier<decorators & RAW_DECORATOR_MASK> Raw;
- return Raw::resolve(obj);
- }
-
- template <DecoratorSet decorators>
- inline static typename EnableIf<
- !HasDecorator<decorators, INTERNAL_BT_TO_SPACE_INVARIANT>::value, oop>::type
- resolve(oop obj) {
- return RuntimeDispatch<decorators, oop, BARRIER_RESOLVE>::resolve(obj);
- }
- };
-
- // This class adds implied decorators that follow according to decorator rules.
- // For example adding default reference strength and default memory ordering
- // semantics.
- template <DecoratorSet input_decorators>
- struct DecoratorFixup: AllStatic {
- // If no reference strength has been picked, then strong will be picked
- static const DecoratorSet ref_strength_default = input_decorators |
- (((ON_DECORATOR_MASK & input_decorators) == 0 && (INTERNAL_VALUE_IS_OOP & input_decorators) != 0) ?
- ON_STRONG_OOP_REF : INTERNAL_EMPTY);
- // If no memory ordering has been picked, unordered will be picked
- static const DecoratorSet memory_ordering_default = ref_strength_default |
- ((MO_DECORATOR_MASK & ref_strength_default) == 0 ? MO_UNORDERED : INTERNAL_EMPTY);
- // If no barrier strength has been picked, normal will be used
- static const DecoratorSet barrier_strength_default = memory_ordering_default |
- ((AS_DECORATOR_MASK & memory_ordering_default) == 0 ? AS_NORMAL : INTERNAL_EMPTY);
- // Heap array accesses imply it is a heap access
- static const DecoratorSet heap_array_is_in_heap = barrier_strength_default |
- ((IN_HEAP_ARRAY & barrier_strength_default) != 0 ? IN_HEAP : INTERNAL_EMPTY);
- static const DecoratorSet conc_root_is_root = heap_array_is_in_heap |
- ((IN_CONCURRENT_ROOT & heap_array_is_in_heap) != 0 ? IN_ROOT : INTERNAL_EMPTY);
- static const DecoratorSet archive_root_is_root = conc_root_is_root |
- ((IN_ARCHIVE_ROOT & conc_root_is_root) != 0 ? IN_ROOT : INTERNAL_EMPTY);
- static const DecoratorSet value = archive_root_is_root | BT_BUILDTIME_DECORATORS;
- };
-
- // Step 2: Reduce types.
- // Enforce that for non-oop types, T and P have to be strictly the same.
- // P is the type of the address and T is the type of the values.
- // As for oop types, it is allow to send T in {narrowOop, oop} and
- // P in {narrowOop, oop, HeapWord*}. The following rules apply according to
- // the subsequent table. (columns are P, rows are T)
- // | | HeapWord | oop | narrowOop |
- // | oop | rt-comp | hw-none | hw-comp |
- // | narrowOop | x | x | hw-none |
- //
- // x means not allowed
- // rt-comp means it must be checked at runtime whether the oop is compressed.
- // hw-none means it is statically known the oop will not be compressed.
- // hw-comp means it is statically known the oop will be compressed.
-
- template <DecoratorSet decorators, typename T>
- inline void store_reduce_types(T* addr, T value) {
- PreRuntimeDispatch::store<decorators>(addr, value);
- }
-
- template <DecoratorSet decorators>
- inline void store_reduce_types(narrowOop* addr, oop value) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- PreRuntimeDispatch::store<expanded_decorators>(addr, value);
- }
-
- template <DecoratorSet decorators>
- inline void store_reduce_types(narrowOop* addr, narrowOop value) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- PreRuntimeDispatch::store<expanded_decorators>(addr, value);
- }
-
- template <DecoratorSet decorators>
- inline void store_reduce_types(HeapWord* addr, oop value) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP;
- PreRuntimeDispatch::store<expanded_decorators>(addr, value);
+ void RuntimeDispatch<decorators, T, BARRIER_STORE>::store_init(void* addr, T value) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_STORE>::resolve_barrier();
+ _store_func = function;
+ function(addr, value);
}
template <DecoratorSet decorators, typename T>
- inline T atomic_cmpxchg_reduce_types(T new_value, T* addr, T compare_value) {
- return PreRuntimeDispatch::atomic_cmpxchg<decorators>(new_value, addr, compare_value);
- }
-
- template <DecoratorSet decorators>
- inline oop atomic_cmpxchg_reduce_types(oop new_value, narrowOop* addr, oop compare_value) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- return PreRuntimeDispatch::atomic_cmpxchg<expanded_decorators>(new_value, addr, compare_value);
- }
-
- template <DecoratorSet decorators>
- inline narrowOop atomic_cmpxchg_reduce_types(narrowOop new_value, narrowOop* addr, narrowOop compare_value) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- return PreRuntimeDispatch::atomic_cmpxchg<expanded_decorators>(new_value, addr, compare_value);
- }
-
- template <DecoratorSet decorators>
- inline oop atomic_cmpxchg_reduce_types(oop new_value,
- HeapWord* addr,
- oop compare_value) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP;
- return PreRuntimeDispatch::atomic_cmpxchg<expanded_decorators>(new_value, addr, compare_value);
+ void RuntimeDispatch<decorators, T, BARRIER_STORE_AT>::store_at_init(oop base, ptrdiff_t offset, T value) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_STORE_AT>::resolve_barrier();
+ _store_at_func = function;
+ function(base, offset, value);
}
template <DecoratorSet decorators, typename T>
- inline T atomic_xchg_reduce_types(T new_value, T* addr) {
- const DecoratorSet expanded_decorators = decorators;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, addr);
- }
-
- template <DecoratorSet decorators>
- inline oop atomic_xchg_reduce_types(oop new_value, narrowOop* addr) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, addr);
- }
-
- template <DecoratorSet decorators>
- inline narrowOop atomic_xchg_reduce_types(narrowOop new_value, narrowOop* addr) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, addr);
- }
-
- template <DecoratorSet decorators>
- inline oop atomic_xchg_reduce_types(oop new_value, HeapWord* addr) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP;
- return PreRuntimeDispatch::atomic_xchg<expanded_decorators>(new_value, addr);
- }
-
- template <DecoratorSet decorators, typename T>
- inline T load_reduce_types(T* addr) {
- return PreRuntimeDispatch::load<decorators, T>(addr);
+ T RuntimeDispatch<decorators, T, BARRIER_LOAD>::load_init(void* addr) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_LOAD>::resolve_barrier();
+ _load_func = function;
+ return function(addr);
}
template <DecoratorSet decorators, typename T>
- inline typename OopOrNarrowOop<T>::type load_reduce_types(narrowOop* addr) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- return PreRuntimeDispatch::load<expanded_decorators, typename OopOrNarrowOop<T>::type>(addr);
+ T RuntimeDispatch<decorators, T, BARRIER_LOAD_AT>::load_at_init(oop base, ptrdiff_t offset) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_LOAD_AT>::resolve_barrier();
+ _load_at_func = function;
+ return function(base, offset);
}
template <DecoratorSet decorators, typename T>
- inline oop load_reduce_types(HeapWord* addr) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP;
- return PreRuntimeDispatch::load<expanded_decorators, oop>(addr);
+ T RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG>::atomic_cmpxchg_init(T new_value, void* addr, T compare_value) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_CMPXCHG>::resolve_barrier();
+ _atomic_cmpxchg_func = function;
+ return function(new_value, addr, compare_value);
}
template <DecoratorSet decorators, typename T>
- inline bool arraycopy_reduce_types(arrayOop src_obj, arrayOop dst_obj, T* src, T* dst, size_t length) {
- return PreRuntimeDispatch::arraycopy<decorators>(src_obj, dst_obj, src, dst, length);
- }
-
- template <DecoratorSet decorators>
- inline bool arraycopy_reduce_types(arrayOop src_obj, arrayOop dst_obj, HeapWord* src, HeapWord* dst, size_t length) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP;
- return PreRuntimeDispatch::arraycopy<expanded_decorators>(src_obj, dst_obj, src, dst, length);
+ T RuntimeDispatch<decorators, T, BARRIER_ATOMIC_CMPXCHG_AT>::atomic_cmpxchg_at_init(T new_value, oop base, ptrdiff_t offset, T compare_value) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_CMPXCHG_AT>::resolve_barrier();
+ _atomic_cmpxchg_at_func = function;
+ return function(new_value, base, offset, compare_value);
}
- template <DecoratorSet decorators>
- inline bool arraycopy_reduce_types(arrayOop src_obj, arrayOop dst_obj, narrowOop* src, narrowOop* dst, size_t length) {
- const DecoratorSet expanded_decorators = decorators | INTERNAL_CONVERT_COMPRESSED_OOP |
- INTERNAL_RT_USE_COMPRESSED_OOPS;
- return PreRuntimeDispatch::arraycopy<expanded_decorators>(src_obj, dst_obj, src, dst, length);
- }
-
- // Step 1: Set default decorators. This step remembers if a type was volatile
- // and then sets the MO_VOLATILE decorator by default. Otherwise, a default
- // memory ordering is set for the access, and the implied decorator rules
- // are applied to select sensible defaults for decorators that have not been
- // explicitly set. For example, default object referent strength is set to strong.
- // This step also decays the types passed in (e.g. getting rid of CV qualifiers
- // and references from the types). This step also perform some type verification
- // that the passed in types make sense.
-
template <DecoratorSet decorators, typename T>
- static void verify_types(){
- // If this fails to compile, then you have sent in something that is
- // not recognized as a valid primitive type to a primitive Access function.
- STATIC_ASSERT((HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value || // oops have already been validated
- (IsPointer<T>::value || IsIntegral<T>::value) ||
- IsFloatingPoint<T>::value)); // not allowed primitive type
- }
-
- template <DecoratorSet decorators, typename P, typename T>
- inline void store(P* addr, T value) {
- verify_types<decorators, T>();
- typedef typename Decay<P>::type DecayedP;
- typedef typename Decay<T>::type DecayedT;
- DecayedT decayed_value = value;
- // If a volatile address is passed in but no memory ordering decorator,
- // set the memory ordering to MO_VOLATILE by default.
- const DecoratorSet expanded_decorators = DecoratorFixup<
- (IsVolatile<P>::value && !HasDecorator<decorators, MO_DECORATOR_MASK>::value) ?
- (MO_VOLATILE | decorators) : decorators>::value;
- store_reduce_types<expanded_decorators>(const_cast<DecayedP*>(addr), decayed_value);
+ T RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG>::atomic_xchg_init(T new_value, void* addr) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_XCHG>::resolve_barrier();
+ _atomic_xchg_func = function;
+ return function(new_value, addr);
}
template <DecoratorSet decorators, typename T>
- inline void store_at(oop base, ptrdiff_t offset, T value) {
- verify_types<decorators, T>();
- typedef typename Decay<T>::type DecayedT;
- DecayedT decayed_value = value;
- const DecoratorSet expanded_decorators = DecoratorFixup<decorators |
- (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value ?
- INTERNAL_CONVERT_COMPRESSED_OOP : INTERNAL_EMPTY)>::value;
- PreRuntimeDispatch::store_at<expanded_decorators>(base, offset, decayed_value);
- }
-
- template <DecoratorSet decorators, typename P, typename T>
- inline T load(P* addr) {
- verify_types<decorators, T>();
- typedef typename Decay<P>::type DecayedP;
- typedef typename Conditional<HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value,
- typename OopOrNarrowOop<T>::type,
- typename Decay<T>::type>::type DecayedT;
- // If a volatile address is passed in but no memory ordering decorator,
- // set the memory ordering to MO_VOLATILE by default.
- const DecoratorSet expanded_decorators = DecoratorFixup<
- (IsVolatile<P>::value && !HasDecorator<decorators, MO_DECORATOR_MASK>::value) ?
- (MO_VOLATILE | decorators) : decorators>::value;
- return load_reduce_types<expanded_decorators, DecayedT>(const_cast<DecayedP*>(addr));
+ T RuntimeDispatch<decorators, T, BARRIER_ATOMIC_XCHG_AT>::atomic_xchg_at_init(T new_value, oop base, ptrdiff_t offset) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_ATOMIC_XCHG_AT>::resolve_barrier();
+ _atomic_xchg_at_func = function;
+ return function(new_value, base, offset);
}
template <DecoratorSet decorators, typename T>
- inline T load_at(oop base, ptrdiff_t offset) {
- verify_types<decorators, T>();
- typedef typename Conditional<HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value,
- typename OopOrNarrowOop<T>::type,
- typename Decay<T>::type>::type DecayedT;
- // Expand the decorators (figure out sensible defaults)
- // Potentially remember if we need compressed oop awareness
- const DecoratorSet expanded_decorators = DecoratorFixup<decorators |
- (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value ?
- INTERNAL_CONVERT_COMPRESSED_OOP : INTERNAL_EMPTY)>::value;
- return PreRuntimeDispatch::load_at<expanded_decorators, DecayedT>(base, offset);
- }
-
- template <DecoratorSet decorators, typename P, typename T>
- inline T atomic_cmpxchg(T new_value, P* addr, T compare_value) {
- verify_types<decorators, T>();
- typedef typename Decay<P>::type DecayedP;
- typedef typename Decay<T>::type DecayedT;
- DecayedT new_decayed_value = new_value;
- DecayedT compare_decayed_value = compare_value;
- const DecoratorSet expanded_decorators = DecoratorFixup<
- (!HasDecorator<decorators, MO_DECORATOR_MASK>::value) ?
- (MO_SEQ_CST | decorators) : decorators>::value;
- return atomic_cmpxchg_reduce_types<expanded_decorators>(new_decayed_value,
- const_cast<DecayedP*>(addr),
- compare_decayed_value);
+ bool RuntimeDispatch<decorators, T, BARRIER_ARRAYCOPY>::arraycopy_init(arrayOop src_obj, arrayOop dst_obj, T *src, T* dst, size_t length) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_ARRAYCOPY>::resolve_barrier();
+ _arraycopy_func = function;
+ return function(src_obj, dst_obj, src, dst, length);
}
template <DecoratorSet decorators, typename T>
- inline T atomic_cmpxchg_at(T new_value, oop base, ptrdiff_t offset, T compare_value) {
- verify_types<decorators, T>();
- typedef typename Decay<T>::type DecayedT;
- DecayedT new_decayed_value = new_value;
- DecayedT compare_decayed_value = compare_value;
- // Determine default memory ordering
- const DecoratorSet expanded_decorators = DecoratorFixup<
- (!HasDecorator<decorators, MO_DECORATOR_MASK>::value) ?
- (MO_SEQ_CST | decorators) : decorators>::value;
- // Potentially remember that we need compressed oop awareness
- const DecoratorSet final_decorators = expanded_decorators |
- (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value ?
- INTERNAL_CONVERT_COMPRESSED_OOP : INTERNAL_EMPTY);
- return PreRuntimeDispatch::atomic_cmpxchg_at<final_decorators>(new_decayed_value, base,
- offset, compare_decayed_value);
- }
-
- template <DecoratorSet decorators, typename P, typename T>
- inline T atomic_xchg(T new_value, P* addr) {
- verify_types<decorators, T>();
- typedef typename Decay<P>::type DecayedP;
- typedef typename Decay<T>::type DecayedT;
- DecayedT new_decayed_value = new_value;
- // atomic_xchg is only available in SEQ_CST flavour.
- const DecoratorSet expanded_decorators = DecoratorFixup<decorators | MO_SEQ_CST>::value;
- return atomic_xchg_reduce_types<expanded_decorators>(new_decayed_value,
- const_cast<DecayedP*>(addr));
+ void RuntimeDispatch<decorators, T, BARRIER_CLONE>::clone_init(oop src, oop dst, size_t size) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_CLONE>::resolve_barrier();
+ _clone_func = function;
+ function(src, dst, size);
}
template <DecoratorSet decorators, typename T>
- inline T atomic_xchg_at(T new_value, oop base, ptrdiff_t offset) {
- verify_types<decorators, T>();
- typedef typename Decay<T>::type DecayedT;
- DecayedT new_decayed_value = new_value;
- // atomic_xchg is only available in SEQ_CST flavour.
- const DecoratorSet expanded_decorators = DecoratorFixup<decorators | MO_SEQ_CST |
- (HasDecorator<decorators, INTERNAL_VALUE_IS_OOP>::value ?
- INTERNAL_CONVERT_COMPRESSED_OOP : INTERNAL_EMPTY)>::value;
- return PreRuntimeDispatch::atomic_xchg_at<expanded_decorators>(new_decayed_value, base, offset);
+ oop RuntimeDispatch<decorators, T, BARRIER_RESOLVE>::resolve_init(oop obj) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_RESOLVE>::resolve_barrier();
+ _resolve_func = function;
+ return function(obj);
}
template <DecoratorSet decorators, typename T>
- inline bool arraycopy(arrayOop src_obj, arrayOop dst_obj, T* src, T* dst, size_t length) {
- 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>::value;
- return arraycopy_reduce_types<expanded_decorators>(src_obj, dst_obj,
- const_cast<DecayedT*>(src),
- const_cast<DecayedT*>(dst),
- length);
- }
-
- template <DecoratorSet decorators>
- inline void clone(oop src, oop dst, size_t size) {
- const DecoratorSet expanded_decorators = DecoratorFixup<decorators>::value;
- PreRuntimeDispatch::clone<expanded_decorators>(src, dst, size);
+ bool RuntimeDispatch<decorators, T, BARRIER_EQUALS>::equals_init(oop o1, oop o2) {
+ func_t function = BarrierResolver<decorators, func_t, BARRIER_EQUALS>::resolve_barrier();
+ _equals_func = function;
+ return function(o1, o2);
}
-
- template <DecoratorSet decorators>
- inline oop resolve(oop obj) {
- const DecoratorSet expanded_decorators = DecoratorFixup<decorators>::value;
- return PreRuntimeDispatch::resolve<expanded_decorators>(obj);
- }
-}
-
-template <DecoratorSet decorators>
-template <DecoratorSet expected_decorators>
-void Access<decorators>::verify_decorators() {
- STATIC_ASSERT((~expected_decorators & decorators) == 0); // unexpected decorator used
- const DecoratorSet barrier_strength_decorators = decorators & AS_DECORATOR_MASK;
- STATIC_ASSERT(barrier_strength_decorators == 0 || ( // make sure barrier strength decorators are disjoint if set
- (barrier_strength_decorators ^ AS_NO_KEEPALIVE) == 0 ||
- (barrier_strength_decorators ^ AS_DEST_NOT_INITIALIZED) == 0 ||
- (barrier_strength_decorators ^ AS_RAW) == 0 ||
- (barrier_strength_decorators ^ AS_NORMAL) == 0
- ));
- const DecoratorSet ref_strength_decorators = decorators & ON_DECORATOR_MASK;
- STATIC_ASSERT(ref_strength_decorators == 0 || ( // make sure ref strength decorators are disjoint if set
- (ref_strength_decorators ^ ON_STRONG_OOP_REF) == 0 ||
- (ref_strength_decorators ^ ON_WEAK_OOP_REF) == 0 ||
- (ref_strength_decorators ^ ON_PHANTOM_OOP_REF) == 0 ||
- (ref_strength_decorators ^ ON_UNKNOWN_OOP_REF) == 0
- ));
- const DecoratorSet memory_ordering_decorators = decorators & MO_DECORATOR_MASK;
- STATIC_ASSERT(memory_ordering_decorators == 0 || ( // make sure memory ordering decorators are disjoint if set
- (memory_ordering_decorators ^ MO_UNORDERED) == 0 ||
- (memory_ordering_decorators ^ MO_VOLATILE) == 0 ||
- (memory_ordering_decorators ^ MO_RELAXED) == 0 ||
- (memory_ordering_decorators ^ MO_ACQUIRE) == 0 ||
- (memory_ordering_decorators ^ MO_RELEASE) == 0 ||
- (memory_ordering_decorators ^ MO_SEQ_CST) == 0
- ));
- const DecoratorSet location_decorators = decorators & IN_DECORATOR_MASK;
- STATIC_ASSERT(location_decorators == 0 || ( // make sure location decorators are disjoint if set
- (location_decorators ^ IN_ROOT) == 0 ||
- (location_decorators ^ IN_HEAP) == 0 ||
- (location_decorators ^ (IN_HEAP | IN_HEAP_ARRAY)) == 0 ||
- (location_decorators ^ (IN_ROOT | IN_CONCURRENT_ROOT)) == 0 ||
- (location_decorators ^ (IN_ROOT | IN_ARCHIVE_ROOT)) == 0
- ));
}
-#endif // SHARE_VM_RUNTIME_ACCESS_INLINE_HPP
+#endif // SHARE_OOPS_ACCESS_INLINE_HPP
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