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| Rev | Author | Line No. | Line |
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| 14 | pmbaty | 1 | /*===---- __clang_hip_stdlib.h - Device-side HIP math support --------------=== |
| 2 | * |
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| 3 | * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | * See https://llvm.org/LICENSE.txt for license information. |
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| 5 | * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | * |
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| 7 | *===-----------------------------------------------------------------------=== |
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| 8 | */ |
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| 9 | #ifndef __CLANG_HIP_STDLIB_H__ |
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| 10 | |||
| 11 | #if !defined(__HIP__) && !defined(__OPENMP_AMDGCN__) |
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| 12 | #error "This file is for HIP and OpenMP AMDGCN device compilation only." |
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| 13 | #endif |
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| 14 | |||
| 15 | #if !defined(__cplusplus) |
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| 16 | |||
| 17 | #include <limits.h> |
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| 18 | |||
| 19 | #ifdef __OPENMP_AMDGCN__ |
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| 20 | #define __DEVICE__ static inline __attribute__((always_inline, nothrow)) |
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| 21 | #else |
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| 22 | #define __DEVICE__ static __device__ inline __attribute__((always_inline)) |
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| 23 | #endif |
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| 24 | |||
| 25 | __DEVICE__ |
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| 26 | int abs(int __x) { |
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| 27 | int __sgn = __x >> (sizeof(int) * CHAR_BIT - 1); |
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| 28 | return (__x ^ __sgn) - __sgn; |
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| 29 | } |
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| 30 | __DEVICE__ |
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| 31 | long labs(long __x) { |
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| 32 | long __sgn = __x >> (sizeof(long) * CHAR_BIT - 1); |
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| 33 | return (__x ^ __sgn) - __sgn; |
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| 34 | } |
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| 35 | __DEVICE__ |
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| 36 | long long llabs(long long __x) { |
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| 37 | long long __sgn = __x >> (sizeof(long long) * CHAR_BIT - 1); |
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| 38 | return (__x ^ __sgn) - __sgn; |
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| 39 | } |
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| 40 | |||
| 41 | #endif // !defined(__cplusplus) |
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| 42 | |||
| 43 | #endif // #define __CLANG_HIP_STDLIB_H__ |