< prev index next >
src/hotspot/os_cpu/windows_x86/atomic_windows_x86.hpp
Print this page
rev 49898 : 8202080: Introduce ordering semantics for Atomic::add and other RMW atomics
Reviewed-by:
*** 1,7 ****
/*
! * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
--- 1,7 ----
/*
! * Copyright (c) 1999, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*** 45,75 ****
template<size_t byte_size>
struct Atomic::PlatformAdd
: Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
{
template<typename I, typename D>
! D add_and_fetch(I add_value, D volatile* dest) const;
};
#ifdef AMD64
template<>
template<typename I, typename D>
! inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const {
return add_using_helper<int32_t>(os::atomic_add_func, add_value, dest);
}
template<>
template<typename I, typename D>
! inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest) const {
return add_using_helper<int64_t>(os::atomic_add_long_func, add_value, dest);
}
#define DEFINE_STUB_XCHG(ByteSize, StubType, StubName) \
template<> \
template<typename T> \
inline T Atomic::PlatformXchg<ByteSize>::operator()(T exchange_value, \
! T volatile* dest) const { \
STATIC_ASSERT(ByteSize == sizeof(T)); \
return xchg_using_helper<StubType>(StubName, exchange_value, dest); \
}
DEFINE_STUB_XCHG(4, int32_t, os::atomic_xchg_func)
--- 45,78 ----
template<size_t byte_size>
struct Atomic::PlatformAdd
: Atomic::AddAndFetch<Atomic::PlatformAdd<byte_size> >
{
template<typename I, typename D>
! D add_and_fetch(I add_value, D volatile* dest, atomic_memory_order order) const;
};
#ifdef AMD64
template<>
template<typename I, typename D>
! inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest,
! atomic_memory_order order) const {
return add_using_helper<int32_t>(os::atomic_add_func, add_value, dest);
}
template<>
template<typename I, typename D>
! inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest,
! atomic_memory_order order) const {
return add_using_helper<int64_t>(os::atomic_add_long_func, add_value, dest);
}
#define DEFINE_STUB_XCHG(ByteSize, StubType, StubName) \
template<> \
template<typename T> \
inline T Atomic::PlatformXchg<ByteSize>::operator()(T exchange_value, \
! T volatile* dest, \
! atomic_memory_order order) const { \
STATIC_ASSERT(ByteSize == sizeof(T)); \
return xchg_using_helper<StubType>(StubName, exchange_value, dest); \
}
DEFINE_STUB_XCHG(4, int32_t, os::atomic_xchg_func)
*** 81,91 ****
template<> \
template<typename T> \
inline T Atomic::PlatformCmpxchg<ByteSize>::operator()(T exchange_value, \
T volatile* dest, \
T compare_value, \
! cmpxchg_memory_order order) const { \
STATIC_ASSERT(ByteSize == sizeof(T)); \
return cmpxchg_using_helper<StubType>(StubName, exchange_value, dest, compare_value); \
}
DEFINE_STUB_CMPXCHG(1, int8_t, os::atomic_cmpxchg_byte_func)
--- 84,94 ----
template<> \
template<typename T> \
inline T Atomic::PlatformCmpxchg<ByteSize>::operator()(T exchange_value, \
T volatile* dest, \
T compare_value, \
! atomic_memory_order order) const { \
STATIC_ASSERT(ByteSize == sizeof(T)); \
return cmpxchg_using_helper<StubType>(StubName, exchange_value, dest, compare_value); \
}
DEFINE_STUB_CMPXCHG(1, int8_t, os::atomic_cmpxchg_byte_func)
*** 96,106 ****
#else // !AMD64
template<>
template<typename I, typename D>
! inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const {
STATIC_ASSERT(4 == sizeof(I));
STATIC_ASSERT(4 == sizeof(D));
__asm {
mov edx, dest;
mov eax, add_value;
--- 99,110 ----
#else // !AMD64
template<>
template<typename I, typename D>
! inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest,
! atomic_memory_order order) const {
STATIC_ASSERT(4 == sizeof(I));
STATIC_ASSERT(4 == sizeof(D));
__asm {
mov edx, dest;
mov eax, add_value;
*** 111,121 ****
}
template<>
template<typename T>
inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
! T volatile* dest) const {
STATIC_ASSERT(4 == sizeof(T));
// alternative for InterlockedExchange
__asm {
mov eax, exchange_value;
mov ecx, dest;
--- 115,126 ----
}
template<>
template<typename T>
inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
! T volatile* dest,
! atomic_memory_order order) const {
STATIC_ASSERT(4 == sizeof(T));
// alternative for InterlockedExchange
__asm {
mov eax, exchange_value;
mov ecx, dest;
*** 126,136 ****
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<1>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
! cmpxchg_memory_order order) const {
STATIC_ASSERT(1 == sizeof(T));
// alternative for InterlockedCompareExchange
__asm {
mov edx, dest
mov cl, exchange_value
--- 131,141 ----
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<1>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
! atomic_memory_order order) const {
STATIC_ASSERT(1 == sizeof(T));
// alternative for InterlockedCompareExchange
__asm {
mov edx, dest
mov cl, exchange_value
*** 142,152 ****
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<4>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
! cmpxchg_memory_order order) const {
STATIC_ASSERT(4 == sizeof(T));
// alternative for InterlockedCompareExchange
__asm {
mov edx, dest
mov ecx, exchange_value
--- 147,157 ----
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<4>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
! atomic_memory_order order) const {
STATIC_ASSERT(4 == sizeof(T));
// alternative for InterlockedCompareExchange
__asm {
mov edx, dest
mov ecx, exchange_value
*** 158,168 ****
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
! cmpxchg_memory_order order) const {
STATIC_ASSERT(8 == sizeof(T));
int32_t ex_lo = (int32_t)exchange_value;
int32_t ex_hi = *( ((int32_t*)&exchange_value) + 1 );
int32_t cmp_lo = (int32_t)compare_value;
int32_t cmp_hi = *( ((int32_t*)&compare_value) + 1 );
--- 163,173 ----
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
! atomic_memory_order order) const {
STATIC_ASSERT(8 == sizeof(T));
int32_t ex_lo = (int32_t)exchange_value;
int32_t ex_hi = *( ((int32_t*)&exchange_value) + 1 );
int32_t cmp_lo = (int32_t)compare_value;
int32_t cmp_hi = *( ((int32_t*)&compare_value) + 1 );
< prev index next >