derek.holloway
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44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*===---- __clang_hip_stdlib.h - Device-side HIP math support --------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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*===-----------------------------------------------------------------------===
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*/
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#ifndef __CLANG_HIP_STDLIB_H__
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#if !defined(__HIP__) && !defined(__OPENMP_AMDGCN__)
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#error "This file is for HIP and OpenMP AMDGCN device compilation only."
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#endif
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#if !defined(__cplusplus)
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#include <limits.h>
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#ifdef __OPENMP_AMDGCN__
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#define __DEVICE__ static inline __attribute__((always_inline, nothrow))
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#else
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#define __DEVICE__ static __device__ inline __attribute__((always_inline))
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#endif
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__DEVICE__
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int abs(int __x) {
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int __sgn = __x >> (sizeof(int) * CHAR_BIT - 1);
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return (__x ^ __sgn) - __sgn;
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}
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__DEVICE__
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long labs(long __x) {
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long __sgn = __x >> (sizeof(long) * CHAR_BIT - 1);
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return (__x ^ __sgn) - __sgn;
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}
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__DEVICE__
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long long llabs(long long __x) {
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long long __sgn = __x >> (sizeof(long long) * CHAR_BIT - 1);
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return (__x ^ __sgn) - __sgn;
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}
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#endif // !defined(__cplusplus)
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#endif // #define __CLANG_HIP_STDLIB_H__
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