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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_H_ | 5 #ifndef PLATFORM_UTILS_H_ |
6 #define PLATFORM_UTILS_H_ | 6 #define PLATFORM_UTILS_H_ |
7 | 7 |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 #include "platform/globals.h" | 9 #include "platform/globals.h" |
10 | 10 |
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69 template<typename T> | 69 template<typename T> |
70 static inline T RoundUp(T x, intptr_t n) { | 70 static inline T RoundUp(T x, intptr_t n) { |
71 return RoundDown(x + n - 1, n); | 71 return RoundDown(x + n - 1, n); |
72 } | 72 } |
73 | 73 |
74 template<typename T> | 74 template<typename T> |
75 static inline T* RoundUp(T* x, intptr_t n) { | 75 static inline T* RoundUp(T* x, intptr_t n) { |
76 return reinterpret_cast<T*>(RoundUp(reinterpret_cast<uword>(x), n)); | 76 return reinterpret_cast<T*>(RoundUp(reinterpret_cast<uword>(x), n)); |
77 } | 77 } |
78 | 78 |
79 static uint32_t RoundUpToPowerOfTwo(uint32_t x); | 79 static uintptr_t RoundUpToPowerOfTwo(uintptr_t x); |
80 static int CountOneBits(uint32_t x); | 80 static int CountOneBits(uint32_t x); |
81 | 81 |
82 static int HighestBit(int64_t v); | 82 static int HighestBit(int64_t v); |
83 | 83 |
84 static int CountTrailingZeros(uword x); | 84 static int CountTrailingZeros(uword x); |
85 | 85 |
86 // Computes a hash value for the given string. | 86 // Computes a hash value for the given string. |
87 static uint32_t StringHash(const char* data, int length); | 87 static uint32_t StringHash(const char* data, int length); |
88 | 88 |
89 // Computes a hash value for the given word. | 89 // Computes a hash value for the given word. |
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189 #include "platform/utils_linux.h" | 189 #include "platform/utils_linux.h" |
190 #elif defined(TARGET_OS_MACOS) | 190 #elif defined(TARGET_OS_MACOS) |
191 #include "platform/utils_macos.h" | 191 #include "platform/utils_macos.h" |
192 #elif defined(TARGET_OS_WINDOWS) | 192 #elif defined(TARGET_OS_WINDOWS) |
193 #include "platform/utils_win.h" | 193 #include "platform/utils_win.h" |
194 #else | 194 #else |
195 #error Unknown target os. | 195 #error Unknown target os. |
196 #endif | 196 #endif |
197 | 197 |
198 #endif // PLATFORM_UTILS_H_ | 198 #endif // PLATFORM_UTILS_H_ |
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