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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 // 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 #include "src/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #if V8_TARGET_ARCH_X87 | 7 #if V8_TARGET_ARCH_X87 |
| 8 | 8 |
| 9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
| 10 #include "src/base/division-by-constant.h" | 10 #include "src/base/division-by-constant.h" |
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| 1314 times_pointer_size, | 1314 times_pointer_size, |
| 1315 SeededNumberDictionary::kElementsStartOffset)); | 1315 SeededNumberDictionary::kElementsStartOffset)); |
| 1316 if (i != (kNumberDictionaryProbes - 1)) { | 1316 if (i != (kNumberDictionaryProbes - 1)) { |
| 1317 j(equal, &done); | 1317 j(equal, &done); |
| 1318 } else { | 1318 } else { |
| 1319 j(not_equal, miss); | 1319 j(not_equal, miss); |
| 1320 } | 1320 } |
| 1321 } | 1321 } |
| 1322 | 1322 |
| 1323 bind(&done); | 1323 bind(&done); |
| 1324 // Check that the value is a normal propety. | 1324 // Check that the value is a field property. |
| 1325 const int kDetailsOffset = | 1325 const int kDetailsOffset = |
| 1326 SeededNumberDictionary::kElementsStartOffset + 2 * kPointerSize; | 1326 SeededNumberDictionary::kElementsStartOffset + 2 * kPointerSize; |
| 1327 DCHECK_EQ(NORMAL, 0); | 1327 DCHECK_EQ(FIELD, 0); |
| 1328 test(FieldOperand(elements, r2, times_pointer_size, kDetailsOffset), | 1328 test(FieldOperand(elements, r2, times_pointer_size, kDetailsOffset), |
| 1329 Immediate(PropertyDetails::TypeField::kMask << kSmiTagSize)); | 1329 Immediate(PropertyDetails::TypeField::kMask << kSmiTagSize)); |
| 1330 j(not_zero, miss); | 1330 j(not_zero, miss); |
| 1331 | 1331 |
| 1332 // Get the value at the masked, scaled index. | 1332 // Get the value at the masked, scaled index. |
| 1333 const int kValueOffset = | 1333 const int kValueOffset = |
| 1334 SeededNumberDictionary::kElementsStartOffset + kPointerSize; | 1334 SeededNumberDictionary::kElementsStartOffset + kPointerSize; |
| 1335 mov(result, FieldOperand(elements, r2, times_pointer_size, kValueOffset)); | 1335 mov(result, FieldOperand(elements, r2, times_pointer_size, kValueOffset)); |
| 1336 } | 1336 } |
| 1337 | 1337 |
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| 3362 if (mag.shift > 0) sar(edx, mag.shift); | 3362 if (mag.shift > 0) sar(edx, mag.shift); |
| 3363 mov(eax, dividend); | 3363 mov(eax, dividend); |
| 3364 shr(eax, 31); | 3364 shr(eax, 31); |
| 3365 add(edx, eax); | 3365 add(edx, eax); |
| 3366 } | 3366 } |
| 3367 | 3367 |
| 3368 | 3368 |
| 3369 } } // namespace v8::internal | 3369 } } // namespace v8::internal |
| 3370 | 3370 |
| 3371 #endif // V8_TARGET_ARCH_X87 | 3371 #endif // V8_TARGET_ARCH_X87 |
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