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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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77 __asm { | 77 __asm { |
78 fld flt | 78 fld flt |
79 fistp intgr | 79 fistp intgr |
80 }; | 80 }; |
81 #else | 81 #else |
82 intgr = static_cast<int>(flt + 0.5); | 82 intgr = static_cast<int>(flt + 0.5); |
83 if ((intgr & 1) != 0 && intgr - flt == 0.5) { | 83 if ((intgr & 1) != 0 && intgr - flt == 0.5) { |
84 // If the number is halfway between two integers, round to the even one. | 84 // If the number is halfway between two integers, round to the even one. |
85 intgr--; | 85 intgr--; |
86 } | 86 } |
| 87 #endif |
87 return intgr; | 88 return intgr; |
88 #endif | |
89 } | 89 } |
90 | 90 |
91 | 91 |
92 #endif // _MSC_VER | 92 #endif // _MSC_VER |
93 | 93 |
94 // Random is missing on both Visual Studio and MinGW. | 94 // Random is missing on both Visual Studio and MinGW. |
95 int random(); | 95 int random(); |
96 | 96 |
97 #endif // WIN32 | 97 #endif // WIN32 |
98 | 98 |
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777 Atomic32 active_; | 777 Atomic32 active_; |
778 PlatformData* data_; // Platform specific data. | 778 PlatformData* data_; // Platform specific data. |
779 int samples_taken_; // Counts stack samples taken. | 779 int samples_taken_; // Counts stack samples taken. |
780 DISALLOW_IMPLICIT_CONSTRUCTORS(Sampler); | 780 DISALLOW_IMPLICIT_CONSTRUCTORS(Sampler); |
781 }; | 781 }; |
782 | 782 |
783 | 783 |
784 } } // namespace v8::internal | 784 } } // namespace v8::internal |
785 | 785 |
786 #endif // V8_PLATFORM_H_ | 786 #endif // V8_PLATFORM_H_ |
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