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Initial open source release of OpenCL 2.1 CTS.
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66
test_conformance/c11_atomics/host_atomics.cpp
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66
test_conformance/c11_atomics/host_atomics.cpp
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//
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// Copyright (c) 2017 The Khronos Group Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "host_atomics.h"
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void host_atomic_thread_fence(TExplicitMemoryOrderType order)
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{
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if(order != MEMORY_ORDER_RELAXED) {
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#if defined( _MSC_VER ) || (defined( __INTEL_COMPILER ) && defined(WIN32))
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MemoryBarrier();
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#elif defined(__GNUC__)
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__sync_synchronize();
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#else
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log_info("Host function not implemented: host_atomic_thread_fence\n");
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#endif
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}
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}
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template <>
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HOST_FLOAT host_atomic_exchange(volatile HOST_ATOMIC_FLOAT* a, HOST_FLOAT c, TExplicitMemoryOrderType order)
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{
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HOST_UINT tmp = host_atomic_exchange((volatile HOST_ATOMIC_UINT*)a, *(HOST_UINT*)&c, order);
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return *(float*)&tmp;
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}
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template <>
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HOST_DOUBLE host_atomic_exchange(volatile HOST_ATOMIC_DOUBLE* a, HOST_DOUBLE c, TExplicitMemoryOrderType order)
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{
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HOST_ULONG tmp = host_atomic_exchange((volatile HOST_ATOMIC_ULONG*)a, *(HOST_ULONG*)&c, order);
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return *(double*)&tmp;
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}
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template <>
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HOST_FLOAT host_atomic_load(volatile HOST_ATOMIC_FLOAT* a, TExplicitMemoryOrderType order)
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{
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HOST_UINT tmp = host_atomic_load<HOST_ATOMIC_UINT, HOST_UINT>((volatile HOST_ATOMIC_UINT*)a, order);
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return *(float*)&tmp;
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}
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template <>
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HOST_DOUBLE host_atomic_load(volatile HOST_ATOMIC_DOUBLE* a, TExplicitMemoryOrderType order)
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{
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HOST_ULONG tmp = host_atomic_load<HOST_ATOMIC_ULONG, HOST_ULONG>((volatile HOST_ATOMIC_ULONG*)a, order);
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return *(double*)&tmp;
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}
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bool host_atomic_flag_test_and_set(volatile HOST_ATOMIC_FLAG *a, TExplicitMemoryOrderType order)
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{
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HOST_FLAG old = host_atomic_exchange(a, 1, order);
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return old != 0;
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}
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void host_atomic_flag_clear(volatile HOST_ATOMIC_FLAG *a, TExplicitMemoryOrderType order)
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{
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host_atomic_store(a, 0, order);
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}
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