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Side by Side Diff: runtime/platform/utils_linux.h

Issue 10805080: Fix the build breakage on MacOS and Windows caused by CountTrailingZeros. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Created 8 years, 5 months ago
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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_LINUX_H_
6 #define PLATFORM_UTILS_LINUX_H_ 6 #define PLATFORM_UTILS_LINUX_H_
7 7
8 namespace dart { 8 namespace dart {
9 9
10 inline int Utils::CountTrailingZeros(uint32_t x) { 10 inline int Utils::CountTrailingZeros(uword x) {
11 #if defined(ARCH_IS_32_BIT)
11 return __builtin_ctzl(x); 12 return __builtin_ctzl(x);
12 }; 13 #elif defined(ARCH_IS_64_BIT)
13
14 inline int Utils::CountTrailingZeros(uint64_t x) {
15 return __builtin_ctzll(x); 14 return __builtin_ctzll(x);
15 #else
16 #error Architecture is not 32-bit or 64-bit.
17 #endif
16 }; 18 };
17 19
18 } // namespace dart 20 } // namespace dart
19 21
20 #endif // PLATFORM_UTILS_LINUX_H_ 22 #endif // PLATFORM_UTILS_LINUX_H_
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