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| 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
| 2 // All Rights Reserved. | 2 // All Rights Reserved. |
| 3 // | 3 // |
| 4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
| 5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
| 6 // met: | 6 // met: |
| 7 // | 7 // |
| 8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
| 9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
| 10 // | 10 // |
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| 1368 return ExternalReference(reinterpret_cast<void*>(math_exp_log_table_array)); | 1368 return ExternalReference(reinterpret_cast<void*>(math_exp_log_table_array)); |
| 1369 } | 1369 } |
| 1370 | 1370 |
| 1371 | 1371 |
| 1372 ExternalReference ExternalReference::page_flags(Page* page) { | 1372 ExternalReference ExternalReference::page_flags(Page* page) { |
| 1373 return ExternalReference(reinterpret_cast<Address>(page) + | 1373 return ExternalReference(reinterpret_cast<Address>(page) + |
| 1374 MemoryChunk::kFlagsOffset); | 1374 MemoryChunk::kFlagsOffset); |
| 1375 } | 1375 } |
| 1376 | 1376 |
| 1377 | 1377 |
| 1378 ExternalReference ExternalReference::ForDeoptEntry(Address entry) { | |
| 1379 return ExternalReference(entry); | |
| 1380 } | |
| 1381 | |
| 1382 | |
| 1383 // Helper function to compute x^y, where y is known to be an | 1378 // Helper function to compute x^y, where y is known to be an |
| 1384 // integer. Uses binary decomposition to limit the number of | 1379 // integer. Uses binary decomposition to limit the number of |
| 1385 // multiplications; see the discussion in "Hacker's Delight" by Henry | 1380 // multiplications; see the discussion in "Hacker's Delight" by Henry |
| 1386 // S. Warren, Jr., figure 11-6, page 213. | 1381 // S. Warren, Jr., figure 11-6, page 213. |
| 1387 double power_double_int(double x, int y) { | 1382 double power_double_int(double x, int y) { |
| 1388 double m = (y < 0) ? 1 / x : x; | 1383 double m = (y < 0) ? 1 / x : x; |
| 1389 unsigned n = (y < 0) ? -y : y; | 1384 unsigned n = (y < 0) ? -y : y; |
| 1390 double p = 1; | 1385 double p = 1; |
| 1391 while (n != 0) { | 1386 while (n != 0) { |
| 1392 if ((n & 1) != 0) p *= m; | 1387 if ((n & 1) != 0) p *= m; |
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| 1554 assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position); | 1549 assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position); |
| 1555 state_.written_position = state_.current_position; | 1550 state_.written_position = state_.current_position; |
| 1556 written = true; | 1551 written = true; |
| 1557 } | 1552 } |
| 1558 | 1553 |
| 1559 // Return whether something was written. | 1554 // Return whether something was written. |
| 1560 return written; | 1555 return written; |
| 1561 } | 1556 } |
| 1562 | 1557 |
| 1563 } } // namespace v8::internal | 1558 } } // namespace v8::internal |
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