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53 lines
1.4 KiB
53 lines
1.4 KiB
11 years ago
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/*
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* Copyright 2008-2012 NVIDIA Corporation
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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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#pragma once
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#include <thrust/detail/config.h>
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// msvc case
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#if THRUST_HOST_COMPILER == THRUST_HOST_COMPILER_MSVC
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#ifndef _DEBUG
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#include <intrin.h>
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#pragma intrinsic(_ReadWriteBarrier)
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#define __thrust_compiler_fence() _ReadWriteBarrier()
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#else
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#define __thrust_compiler_fence() do {} while (0)
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#endif // _DEBUG
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// gcc case
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#elif THRUST_HOST_COMPILER == THRUST_HOST_COMPILER_GCC
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#if THRUST_GCC_VERSION >= 40200 // atomic built-ins were introduced ~4.2
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#define __thrust_compiler_fence() __sync_synchronize()
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#else
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// allow the code to compile without any guarantees
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#define __thrust_compiler_fence() do {} while (0)
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#endif // THRUST_GCC_VERSION
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// unknown case
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#elif THRUST_HOST_COMPILER == THRUST_HOST_COMPILER_UNKNOWN
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// allow the code to compile without any guarantees
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#define __thrust_compiler_fence() do {} while (0)
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#endif
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