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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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104 // Constants | 104 // Constants |
105 | 105 |
106 const int KB = 1024; | 106 const int KB = 1024; |
107 const int MB = KB * KB; | 107 const int MB = KB * KB; |
108 const int GB = KB * KB * KB; | 108 const int GB = KB * KB * KB; |
109 const int kMaxInt = 0x7FFFFFFF; | 109 const int kMaxInt = 0x7FFFFFFF; |
110 const int kMinInt = -kMaxInt - 1; | 110 const int kMinInt = -kMaxInt - 1; |
111 | 111 |
112 const uint32_t kMaxUInt32 = 0xFFFFFFFFu; | 112 const uint32_t kMaxUInt32 = 0xFFFFFFFFu; |
113 | 113 |
114 const int kCharSize = sizeof(char); // NOLINT | 114 const int kCharSize = sizeof(char); // NOLINT |
115 const int kShortSize = sizeof(short); // NOLINT | 115 const int kShortSize = sizeof(short); // NOLINT |
116 const int kIntSize = sizeof(int); // NOLINT | 116 const int kIntSize = sizeof(int); // NOLINT |
117 const int kDoubleSize = sizeof(double); // NOLINT | 117 const int kDoubleSize = sizeof(double); // NOLINT |
118 const int kPointerSize = sizeof(void*); // NOLINT | 118 const int kPointerSize = sizeof(void*); // NOLINT |
| 119 const int kIntptrSize = sizeof(intptr_t); // NOLINT |
119 | 120 |
120 #if V8_HOST_ARCH_64_BIT | 121 #if V8_HOST_ARCH_64_BIT |
121 const int kPointerSizeLog2 = 3; | 122 const int kPointerSizeLog2 = 3; |
122 #else | 123 #else |
123 const int kPointerSizeLog2 = 2; | 124 const int kPointerSizeLog2 = 2; |
124 #endif | 125 #endif |
125 | 126 |
126 const int kObjectAlignmentBits = kPointerSizeLog2; | 127 const int kObjectAlignmentBits = kPointerSizeLog2; |
127 const intptr_t kObjectAlignment = 1 << kObjectAlignmentBits; | 128 const intptr_t kObjectAlignment = 1 << kObjectAlignmentBits; |
128 const intptr_t kObjectAlignmentMask = kObjectAlignment - 1; | 129 const intptr_t kObjectAlignmentMask = kObjectAlignment - 1; |
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554 | 555 |
555 Dest dest; | 556 Dest dest; |
556 memcpy(&dest, &source, sizeof(dest)); | 557 memcpy(&dest, &source, sizeof(dest)); |
557 return dest; | 558 return dest; |
558 } | 559 } |
559 | 560 |
560 | 561 |
561 } } // namespace v8::internal | 562 } } // namespace v8::internal |
562 | 563 |
563 #endif // V8_GLOBALS_H_ | 564 #endif // V8_GLOBALS_H_ |
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