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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef PLATFORM_UTILS_LINUX_H_ | 5 #ifndef PLATFORM_UTILS_ANDROID_H_ |
6 #define PLATFORM_UTILS_LINUX_H_ | 6 #define PLATFORM_UTILS_ANDROID_H_ |
7 | 7 |
8 namespace dart { | 8 namespace dart { |
9 | 9 |
10 inline int Utils::CountTrailingZeros(uword x) { | 10 inline int Utils::CountTrailingZeros(uword x) { |
11 #if defined(ARCH_IS_32_BIT) | 11 #if defined(ARCH_IS_32_BIT) |
12 return __builtin_ctzl(x); | 12 return __builtin_ctzl(x); |
13 #elif defined(ARCH_IS_64_BIT) | 13 #elif defined(ARCH_IS_64_BIT) |
14 return __builtin_ctzll(x); | 14 return __builtin_ctzll(x); |
15 #else | 15 #else |
16 #error Architecture is not 32-bit or 64-bit. | 16 #error Architecture is not 32-bit or 64-bit. |
17 #endif | 17 #endif |
18 }; | 18 }; |
19 | 19 |
20 } // namespace dart | 20 } // namespace dart |
21 | 21 |
22 #endif // PLATFORM_UTILS_LINUX_H_ | 22 #endif // PLATFORM_UTILS_ANDROID_H_ |
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