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Diffstat (limited to '3rdParty/Boost/src/boost/atomic/detail/ops_msvc_arm.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/atomic/detail/ops_msvc_arm.hpp | 820 |
1 files changed, 820 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/atomic/detail/ops_msvc_arm.hpp b/3rdParty/Boost/src/boost/atomic/detail/ops_msvc_arm.hpp new file mode 100644 index 0000000..349f7a5 --- /dev/null +++ b/3rdParty/Boost/src/boost/atomic/detail/ops_msvc_arm.hpp @@ -0,0 +1,820 @@ +/* + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + * + * Copyright (c) 2009 Helge Bahmann + * Copyright (c) 2012 Tim Blechmann + * Copyright (c) 2014 Andrey Semashev + */ +/*! + * \file atomic/detail/ops_msvc_arm.hpp + * + * This header contains implementation of the \c operations template. + */ + +#ifndef BOOST_ATOMIC_DETAIL_OPS_MSVC_ARM_HPP_INCLUDED_ +#define BOOST_ATOMIC_DETAIL_OPS_MSVC_ARM_HPP_INCLUDED_ + +#include <intrin.h> +#include <boost/memory_order.hpp> +#include <boost/type_traits/make_signed.hpp> +#include <boost/atomic/detail/config.hpp> +#include <boost/atomic/detail/interlocked.hpp> +#include <boost/atomic/detail/storage_type.hpp> +#include <boost/atomic/detail/operations_fwd.hpp> +#include <boost/atomic/capabilities.hpp> +#include <boost/atomic/detail/ops_msvc_common.hpp> + +#ifdef BOOST_HAS_PRAGMA_ONCE +#pragma once +#endif + +#define BOOST_ATOMIC_DETAIL_ARM_LOAD8(p) __iso_volatile_load8((const volatile __int8*)(p)) +#define BOOST_ATOMIC_DETAIL_ARM_LOAD16(p) __iso_volatile_load16((const volatile __int16*)(p)) +#define BOOST_ATOMIC_DETAIL_ARM_LOAD32(p) __iso_volatile_load32((const volatile __int32*)(p)) +#define BOOST_ATOMIC_DETAIL_ARM_LOAD64(p) __iso_volatile_load64((const volatile __int64*)(p)) +#define BOOST_ATOMIC_DETAIL_ARM_STORE8(p, v) __iso_volatile_store8((volatile __int8*)(p), (__int8)(v)) +#define BOOST_ATOMIC_DETAIL_ARM_STORE16(p, v) __iso_volatile_store16((volatile __int16*)(p), (__int16)(v)) +#define BOOST_ATOMIC_DETAIL_ARM_STORE32(p, v) __iso_volatile_store32((volatile __int32*)(p), (__int32)(v)) +#define BOOST_ATOMIC_DETAIL_ARM_STORE64(p, v) __iso_volatile_store64((volatile __int64*)(p), (__int64)(v)) + +namespace boost { +namespace atomics { +namespace detail { + +// A note about memory_order_consume. Technically, this architecture allows to avoid +// unnecessary memory barrier after consume load since it supports data dependency ordering. +// However, some compiler optimizations may break a seemingly valid code relying on data +// dependency tracking by injecting bogus branches to aid out of order execution. +// This may happen not only in Boost.Atomic code but also in user's code, which we have no +// control of. See this thread: http://lists.boost.org/Archives/boost/2014/06/213890.php. +// For this reason we promote memory_order_consume to memory_order_acquire. + +struct msvc_arm_operations_base +{ + static BOOST_FORCEINLINE void hardware_full_fence() BOOST_NOEXCEPT + { + __dmb(0xB); // _ARM_BARRIER_ISH, see armintr.h from MSVC 11 and later + } + + static BOOST_FORCEINLINE void fence_before_store(memory_order order) BOOST_NOEXCEPT + { + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + + if ((order & memory_order_release) != 0) + hardware_full_fence(); + + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + } + + static BOOST_FORCEINLINE void fence_after_store(memory_order order) BOOST_NOEXCEPT + { + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + + if (order == memory_order_seq_cst) + hardware_full_fence(); + + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + } + + static BOOST_FORCEINLINE void fence_after_load(memory_order order) BOOST_NOEXCEPT + { + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + + if ((order & (memory_order_consume | memory_order_acquire)) != 0) + hardware_full_fence(); + + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + } + + static BOOST_FORCEINLINE BOOST_CONSTEXPR memory_order cas_common_order(memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + // Combine order flags together and promote memory_order_consume to memory_order_acquire + return static_cast< memory_order >(((failure_order | success_order) & ~memory_order_consume) | (((failure_order | success_order) & memory_order_consume) << 1u)); + } +}; + +template< typename T, typename Derived > +struct msvc_arm_operations : + public msvc_arm_operations_base +{ + typedef T storage_type; + + static BOOST_FORCEINLINE storage_type fetch_sub(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + typedef typename make_signed< storage_type >::type signed_storage_type; + return Derived::fetch_add(storage, static_cast< storage_type >(-static_cast< signed_storage_type >(v)), order); + } + + static BOOST_FORCEINLINE bool compare_exchange_weak( + storage_type volatile& storage, storage_type& expected, storage_type desired, memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + return Derived::compare_exchange_strong(storage, expected, desired, success_order, failure_order); + } + + static BOOST_FORCEINLINE bool test_and_set(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + return !!Derived::exchange(storage, (storage_type)1, order); + } + + static BOOST_FORCEINLINE void clear(storage_type volatile& storage, memory_order order) BOOST_NOEXCEPT + { + Derived::store(storage, (storage_type)0, order); + } + + static BOOST_FORCEINLINE bool is_lock_free(storage_type const volatile&) BOOST_NOEXCEPT + { + return true; + } +}; + +template< bool Signed > +struct operations< 1u, Signed > : + public msvc_arm_operations< typename make_storage_type< 1u, Signed >::type, operations< 1u, Signed > > +{ + typedef msvc_arm_operations< typename make_storage_type< 1u, Signed >::type, operations< 1u, Signed > > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE void store(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + base_type::fence_before_store(order); + BOOST_ATOMIC_DETAIL_ARM_STORE8(&storage, v); + base_type::fence_after_store(order); + } + + static BOOST_FORCEINLINE storage_type load(storage_type const volatile& storage, memory_order order) BOOST_NOEXCEPT + { + storage_type v = BOOST_ATOMIC_DETAIL_ARM_LOAD8(&storage); + base_type::fence_after_load(order); + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_add(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD8_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD8_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD8_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD8(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type exchange(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE8_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE8_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE8_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE8(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE bool compare_exchange_strong( + storage_type volatile& storage, storage_type& expected, storage_type desired, memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + storage_type previous = expected, old_val; + + switch (cas_common_order(success_order, failure_order)) + { + case memory_order_relaxed: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE8_RELAXED(&storage, desired, previous)); + break; + case memory_order_consume: + case memory_order_acquire: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE8_ACQUIRE(&storage, desired, previous)); + break; + case memory_order_release: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE8_RELEASE(&storage, desired, previous)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE8(&storage, desired, previous)); + break; + } + expected = old_val; + + return (previous == old_val); + } + + static BOOST_FORCEINLINE storage_type fetch_and(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND8_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND8_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND8_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND8(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_or(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR8_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR8_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR8_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR8(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_xor(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR8_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR8_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR8_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR8(&storage, v)); + break; + } + return v; + } +}; + +template< bool Signed > +struct operations< 2u, Signed > : + public msvc_arm_operations< typename make_storage_type< 2u, Signed >::type, operations< 2u, Signed > > +{ + typedef msvc_arm_operations< typename make_storage_type< 2u, Signed >::type, operations< 2u, Signed > > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE void store(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + base_type::fence_before_store(order); + BOOST_ATOMIC_DETAIL_ARM_STORE16(&storage, v); + base_type::fence_after_store(order); + } + + static BOOST_FORCEINLINE storage_type load(storage_type const volatile& storage, memory_order order) BOOST_NOEXCEPT + { + storage_type v = BOOST_ATOMIC_DETAIL_ARM_LOAD16(&storage); + base_type::fence_after_load(order); + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_add(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD16_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD16_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD16_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD16(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type exchange(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE16_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE16_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE16_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE16(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE bool compare_exchange_strong( + storage_type volatile& storage, storage_type& expected, storage_type desired, memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + storage_type previous = expected, old_val; + + switch (cas_common_order(success_order, failure_order)) + { + case memory_order_relaxed: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE16_RELAXED(&storage, desired, previous)); + break; + case memory_order_consume: + case memory_order_acquire: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE16_ACQUIRE(&storage, desired, previous)); + break; + case memory_order_release: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE16_RELEASE(&storage, desired, previous)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE16(&storage, desired, previous)); + break; + } + expected = old_val; + + return (previous == old_val); + } + + static BOOST_FORCEINLINE storage_type fetch_and(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND16_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND16_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND16_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND16(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_or(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR16_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR16_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR16_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR16(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_xor(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR16_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR16_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR16_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR16(&storage, v)); + break; + } + return v; + } +}; + +template< bool Signed > +struct operations< 4u, Signed > : + public msvc_arm_operations< typename make_storage_type< 4u, Signed >::type, operations< 4u, Signed > > +{ + typedef msvc_arm_operations< typename make_storage_type< 4u, Signed >::type, operations< 4u, Signed > > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE void store(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + base_type::fence_before_store(order); + BOOST_ATOMIC_DETAIL_ARM_STORE32(&storage, v); + base_type::fence_after_store(order); + } + + static BOOST_FORCEINLINE storage_type load(storage_type const volatile& storage, memory_order order) BOOST_NOEXCEPT + { + storage_type v = BOOST_ATOMIC_DETAIL_ARM_LOAD32(&storage); + base_type::fence_after_load(order); + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_add(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type exchange(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE bool compare_exchange_strong( + storage_type volatile& storage, storage_type& expected, storage_type desired, memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + storage_type previous = expected, old_val; + + switch (cas_common_order(success_order, failure_order)) + { + case memory_order_relaxed: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE_RELAXED(&storage, desired, previous)); + break; + case memory_order_consume: + case memory_order_acquire: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE_ACQUIRE(&storage, desired, previous)); + break; + case memory_order_release: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE_RELEASE(&storage, desired, previous)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE(&storage, desired, previous)); + break; + } + expected = old_val; + + return (previous == old_val); + } + + static BOOST_FORCEINLINE storage_type fetch_and(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_or(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_xor(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR(&storage, v)); + break; + } + return v; + } +}; + +template< bool Signed > +struct operations< 8u, Signed > : + public msvc_arm_operations< typename make_storage_type< 8u, Signed >::type, operations< 8u, Signed > > +{ + typedef msvc_arm_operations< typename make_storage_type< 8u, Signed >::type, operations< 8u, Signed > > base_type; + typedef typename base_type::storage_type storage_type; + + static BOOST_FORCEINLINE void store(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + base_type::fence_before_store(order); + BOOST_ATOMIC_DETAIL_ARM_STORE64(&storage, v); + base_type::fence_after_store(order); + } + + static BOOST_FORCEINLINE storage_type load(storage_type const volatile& storage, memory_order order) BOOST_NOEXCEPT + { + storage_type v = BOOST_ATOMIC_DETAIL_ARM_LOAD64(&storage); + base_type::fence_after_load(order); + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_add(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD64_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD64_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD64_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE_ADD64(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type exchange(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE64_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE64_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE64_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_EXCHANGE64(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE bool compare_exchange_strong( + storage_type volatile& storage, storage_type& expected, storage_type desired, memory_order success_order, memory_order failure_order) BOOST_NOEXCEPT + { + storage_type previous = expected, old_val; + + switch (cas_common_order(success_order, failure_order)) + { + case memory_order_relaxed: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE64_RELAXED(&storage, desired, previous)); + break; + case memory_order_consume: + case memory_order_acquire: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE64_ACQUIRE(&storage, desired, previous)); + break; + case memory_order_release: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE64_RELEASE(&storage, desired, previous)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + old_val = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_COMPARE_EXCHANGE64(&storage, desired, previous)); + break; + } + expected = old_val; + + return (previous == old_val); + } + + static BOOST_FORCEINLINE storage_type fetch_and(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND64_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND64_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND64_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_AND64(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_or(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR64_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR64_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR64_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_OR64(&storage, v)); + break; + } + return v; + } + + static BOOST_FORCEINLINE storage_type fetch_xor(storage_type volatile& storage, storage_type v, memory_order order) BOOST_NOEXCEPT + { + switch (order) + { + case memory_order_relaxed: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR64_RELAXED(&storage, v)); + break; + case memory_order_consume: + case memory_order_acquire: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR64_ACQUIRE(&storage, v)); + break; + case memory_order_release: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR64_RELEASE(&storage, v)); + break; + case memory_order_acq_rel: + case memory_order_seq_cst: + default: + v = static_cast< storage_type >(BOOST_ATOMIC_INTERLOCKED_XOR64(&storage, v)); + break; + } + return v; + } +}; + + +BOOST_FORCEINLINE void thread_fence(memory_order order) BOOST_NOEXCEPT +{ + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); + if (order != memory_order_relaxed) + msvc_arm_operations_base::hardware_full_fence(); + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); +} + +BOOST_FORCEINLINE void signal_fence(memory_order order) BOOST_NOEXCEPT +{ + if (order != memory_order_relaxed) + BOOST_ATOMIC_DETAIL_COMPILER_BARRIER(); +} + +} // namespace detail +} // namespace atomics +} // namespace boost + +#undef BOOST_ATOMIC_DETAIL_ARM_LOAD8 +#undef BOOST_ATOMIC_DETAIL_ARM_LOAD16 +#undef BOOST_ATOMIC_DETAIL_ARM_LOAD32 +#undef BOOST_ATOMIC_DETAIL_ARM_LOAD64 +#undef BOOST_ATOMIC_DETAIL_ARM_STORE8 +#undef BOOST_ATOMIC_DETAIL_ARM_STORE16 +#undef BOOST_ATOMIC_DETAIL_ARM_STORE32 +#undef BOOST_ATOMIC_DETAIL_ARM_STORE64 + +#endif // BOOST_ATOMIC_DETAIL_OPS_MSVC_ARM_HPP_INCLUDED_ |