--- old/src/share/vm/runtime/orderAccess.inline.hpp 2015-01-22 17:49:28.875408996 -0500 +++ new/src/share/vm/runtime/orderAccess.inline.hpp 2015-01-22 17:49:27.563332922 -0500 @@ -26,6 +26,7 @@ #ifndef SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP #define SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP +#include "runtime/atomic.inline.hpp" #include "runtime/orderAccess.hpp" // Linux @@ -71,4 +72,92 @@ # include "orderAccess_bsd_zero.inline.hpp" #endif +#ifdef VM_HAS_GENERALIZED_ORDER_ACCESS + +template<> inline void ScopedFenceGeneral::postfix() { OrderAccess::acquire(); } +template<> inline void ScopedFenceGeneral::prefix() { OrderAccess::release(); } +template<> inline void ScopedFenceGeneral::prefix() { OrderAccess::release(); } +template<> inline void ScopedFenceGeneral::postfix() { OrderAccess::fence(); } + + +template +inline void OrderAccess::ordered_store(volatile FieldType* p, FieldType v) { + ScopedFence f((void*)p); + store(p, v); +} + +template +inline FieldType OrderAccess::ordered_load(volatile FieldType* p) { + ScopedFence f((void*)p); + return load(p); +} + +inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return specialized_load_acquire(p); } +inline jshort OrderAccess::load_acquire(volatile jshort* p) { return specialized_load_acquire(p); } +inline jint OrderAccess::load_acquire(volatile jint* p) { return specialized_load_acquire(p); } +inline jlong OrderAccess::load_acquire(volatile jlong* p) { return specialized_load_acquire(p); } +inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return specialized_load_acquire(p); } +inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return specialized_load_acquire(p); } +inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return (jubyte) specialized_load_acquire((volatile jbyte*)p); } +inline jushort OrderAccess::load_acquire(volatile jushort* p) { return (jushort)specialized_load_acquire((volatile jshort*)p); } +inline juint OrderAccess::load_acquire(volatile juint* p) { return (juint) specialized_load_acquire((volatile jint*)p); } +inline julong OrderAccess::load_acquire(volatile julong* p) { return (julong) specialized_load_acquire((volatile jlong*)p); } + +inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return (intptr_t)specialized_load_acquire(p); } +inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return (void*)specialized_load_acquire((volatile intptr_t*)p); } +inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return (void*)specialized_load_acquire((volatile intptr_t*)p); } + +inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { specialized_release_store(p, v); } +inline void OrderAccess::release_store(volatile jshort* p, jshort v) { specialized_release_store(p, v); } +inline void OrderAccess::release_store(volatile jint* p, jint v) { specialized_release_store(p, v); } +inline void OrderAccess::release_store(volatile jlong* p, jlong v) { specialized_release_store(p, v); } +inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { specialized_release_store(p, v); } +inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { specialized_release_store(p, v); } +inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { specialized_release_store((volatile jbyte*) p, (jbyte) v); } +inline void OrderAccess::release_store(volatile jushort* p, jushort v) { specialized_release_store((volatile jshort*)p, (jshort)v); } +inline void OrderAccess::release_store(volatile juint* p, juint v) { specialized_release_store((volatile jint*) p, (jint) v); } +inline void OrderAccess::release_store(volatile julong* p, julong v) { specialized_release_store((volatile jlong*) p, (jlong) v); } + +inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { specialized_release_store(p, v); } +inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { specialized_release_store((volatile intptr_t*)p, (intptr_t)v); } + +inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { specialized_release_store_fence(p, v); } +inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { specialized_release_store_fence(p, v); } +inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { specialized_release_store_fence(p, v); } +inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { specialized_release_store_fence(p, v); } +inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { specialized_release_store_fence(p, v); } +inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { specialized_release_store_fence(p, v); } +inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { specialized_release_store_fence((volatile jbyte*) p, (jbyte) v); } +inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { specialized_release_store_fence((volatile jshort*)p, (jshort)v); } +inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { specialized_release_store_fence((volatile jint*) p, (jint) v); } +inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { specialized_release_store_fence((volatile jlong*) p, (jlong) v); } + +inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { specialized_release_store_fence(p, v); } +inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { specialized_release_store_fence((volatile intptr_t*)p, (intptr_t)v); } + +// The following methods can be specialized using simple template specialization +// in the platform specific files for optimization purposes. Otherwise the +// generalized variant is used. +template inline T OrderAccess::specialized_load_acquire (volatile T* p) { return ordered_load(p); } +template inline void OrderAccess::specialized_release_store (volatile T* p, T v) { ordered_store(p, v); } +template inline void OrderAccess::specialized_release_store_fence(volatile T* p, T v) { ordered_store(p, v); } + +// Generalized atomic volatile accesses valid in OrderAccess +// All other types can be expressed in terms of these. +inline void OrderAccess::store(volatile jbyte* p, jbyte v) { *p = v; } +inline void OrderAccess::store(volatile jshort* p, jshort v) { *p = v; } +inline void OrderAccess::store(volatile jint* p, jint v) { *p = v; } +inline void OrderAccess::store(volatile jlong* p, jlong v) { Atomic::store(v, p); } +inline void OrderAccess::store(volatile jdouble* p, jdouble v) { Atomic::store(jlong_cast(v), (volatile jlong*)p); } +inline void OrderAccess::store(volatile jfloat* p, jfloat v) { *p = v; } + +inline jbyte OrderAccess::load(volatile jbyte* p) { return *p; } +inline jshort OrderAccess::load(volatile jshort* p) { return *p; } +inline jint OrderAccess::load(volatile jint* p) { return *p; } +inline jlong OrderAccess::load(volatile jlong* p) { return Atomic::load(p); } +inline jdouble OrderAccess::load(volatile jdouble* p) { return jdouble_cast(Atomic::load((volatile jlong*)p)); } +inline jfloat OrderAccess::load(volatile jfloat* p) { return *p; } + +#endif // VM_HAS_GENERALIZED_ORDER_ACCESS + #endif // SHARE_VM_RUNTIME_ORDERACCESS_INLINE_HPP