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src/hotspot/os_cpu/linux_arm/atomic_linux_arm.hpp
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rev 49986 : 8202080: Introduce ordering semantics for Atomic::add and other RMW atomics
Reviewed-by: lucy, rehn, dholmes
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 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.
@@ -79,16 +79,17 @@
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;
+ D add_and_fetch(I add_value, D volatile* dest, atomic_memory_order order) const;
};
template<>
template<typename I, typename D>
-inline D Atomic::PlatformAdd<4>::add_and_fetch(I add_value, D volatile* dest) const {
+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));
#ifdef AARCH64
D val;
int tmp;
@@ -108,11 +109,12 @@
}
#ifdef AARCH64
template<>
template<typename I, typename D>
-inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest) const {
+inline D Atomic::PlatformAdd<8>::add_and_fetch(I add_value, D volatile* dest,
+ atomic_memory_order order) const {
STATIC_ASSERT(8 == sizeof(I));
STATIC_ASSERT(8 == sizeof(D));
D val;
int tmp;
__asm__ volatile(
@@ -129,11 +131,12 @@
#endif
template<>
template<typename T>
inline T Atomic::PlatformXchg<4>::operator()(T exchange_value,
- T volatile* dest) const {
+ T volatile* dest,
+ atomic_memory_order order) const {
STATIC_ASSERT(4 == sizeof(T));
#ifdef AARCH64
T old_val;
int tmp;
__asm__ volatile(
@@ -152,11 +155,12 @@
#ifdef AARCH64
template<>
template<typename T>
inline T Atomic::PlatformXchg<8>::operator()(T exchange_value,
- T volatile* dest) const {
+ T volatile* dest,
+ atomic_memory_order order) const {
STATIC_ASSERT(8 == sizeof(T));
T old_val;
int tmp;
__asm__ volatile(
"1:\n\t"
@@ -198,11 +202,11 @@
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<4>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
- cmpxchg_memory_order order) const {
+ atomic_memory_order order) const {
STATIC_ASSERT(4 == sizeof(T));
#ifdef AARCH64
T rv;
int tmp;
__asm__ volatile(
@@ -228,11 +232,11 @@
template<>
template<typename T>
inline T Atomic::PlatformCmpxchg<8>::operator()(T exchange_value,
T volatile* dest,
T compare_value,
- cmpxchg_memory_order order) const {
+ atomic_memory_order order) const {
STATIC_ASSERT(8 == sizeof(T));
#ifdef AARCH64
T rv;
int tmp;
__asm__ volatile(
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