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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_MISC_INTRINSICS_H_ | 5 #ifndef V8_MISC_INTRINSICS_H_ |
| 6 #define V8_MISC_INTRINSICS_H_ | 6 #define V8_MISC_INTRINSICS_H_ |
| 7 | 7 |
| 8 #include "../include/v8.h" | 8 #include "include/v8.h" |
| 9 #include "globals.h" | 9 #include "src/globals.h" |
| 10 | 10 |
| 11 namespace v8 { | 11 namespace v8 { |
| 12 namespace internal { | 12 namespace internal { |
| 13 | 13 |
| 14 // Returns the index of the leading 1 bit, counting the least significant bit at | 14 // Returns the index of the leading 1 bit, counting the least significant bit at |
| 15 // index 0. (1 << IntegerLog2(x)) is a mask for the most significant bit of x. | 15 // index 0. (1 << IntegerLog2(x)) is a mask for the most significant bit of x. |
| 16 // Result is undefined if input is zero. | 16 // Result is undefined if input is zero. |
| 17 int IntegerLog2(uint32_t value); | 17 int IntegerLog2(uint32_t value); |
| 18 | 18 |
| 19 #if defined(__GNUC__) | 19 #if defined(__GNUC__) |
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| 57 | 57 |
| 58 result |= (value >> 1); | 58 result |= (value >> 1); |
| 59 | 59 |
| 60 return result; | 60 return result; |
| 61 } | 61 } |
| 62 #endif | 62 #endif |
| 63 | 63 |
| 64 } } // namespace v8::internal | 64 } } // namespace v8::internal |
| 65 | 65 |
| 66 #endif // V8_MISC_INTRINSICS_H_ | 66 #endif // V8_MISC_INTRINSICS_H_ |
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Chromium Code Reviews
Issue 304153016:
Use full include paths everywhere (Closed)
Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge