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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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| 438 | 438 |
| 439 bind(&lost_precision_pop); | 439 bind(&lost_precision_pop); |
| 440 fstp(0); | 440 fstp(0); |
| 441 jmp(lost_precision, Label::kNear); | 441 jmp(lost_precision, Label::kNear); |
| 442 } | 442 } |
| 443 } | 443 } |
| 444 bind(&done); | 444 bind(&done); |
| 445 } | 445 } |
| 446 | 446 |
| 447 | 447 |
| 448 | |
| 449 static double kUint32Bias = | |
| 450 static_cast<double>(static_cast<uint32_t>(0xFFFFFFFF)) + 1; | |
| 451 | |
| 452 | |
| 453 void MacroAssembler::LoadUint32(XMMRegister dst, | 448 void MacroAssembler::LoadUint32(XMMRegister dst, |
| 454 Register src, | 449 Register src, |
| 455 XMMRegister scratch) { | 450 XMMRegister scratch) { |
| 456 ASSERT(!Serializer::enabled()); | |
| 457 Label done; | 451 Label done; |
| 458 cmp(src, Immediate(0)); | 452 cmp(src, Immediate(0)); |
| 459 movdbl(scratch, | 453 ExternalReference uint32_bias = |
| 460 Operand(reinterpret_cast<int32_t>(&kUint32Bias), RelocInfo::NONE32)); | 454 ExternalReference::address_of_uint32_bias(); |
| 455 movdbl(scratch, Operand::StaticVariable(uint32_bias)); |
| 461 Cvtsi2sd(dst, src); | 456 Cvtsi2sd(dst, src); |
| 462 j(not_sign, &done, Label::kNear); | 457 j(not_sign, &done, Label::kNear); |
| 463 addsd(dst, scratch); | 458 addsd(dst, scratch); |
| 464 bind(&done); | 459 bind(&done); |
| 465 } | 460 } |
| 466 | 461 |
| 467 | 462 |
| 468 void MacroAssembler::LoadUint32NoSSE2(Register src) { | 463 void MacroAssembler::LoadUint32NoSSE2(Register src) { |
| 469 ASSERT(!Serializer::enabled()); | |
| 470 Label done; | 464 Label done; |
| 471 push(src); | 465 push(src); |
| 472 fild_s(Operand(esp, 0)); | 466 fild_s(Operand(esp, 0)); |
| 473 cmp(src, Immediate(0)); | 467 cmp(src, Immediate(0)); |
| 474 j(not_sign, &done, Label::kNear); | 468 j(not_sign, &done, Label::kNear); |
| 475 fld_d(Operand(reinterpret_cast<int32_t>(&kUint32Bias), RelocInfo::NONE32)); | 469 ExternalReference uint32_bias = |
| 470 ExternalReference::address_of_uint32_bias(); |
| 471 fld_d(Operand::StaticVariable(uint32_bias)); |
| 476 faddp(1); | 472 faddp(1); |
| 477 bind(&done); | 473 bind(&done); |
| 478 add(esp, Immediate(kPointerSize)); | 474 add(esp, Immediate(kPointerSize)); |
| 479 } | 475 } |
| 480 | 476 |
| 481 | 477 |
| 482 void MacroAssembler::RecordWriteArray(Register object, | 478 void MacroAssembler::RecordWriteArray(Register object, |
| 483 Register value, | 479 Register value, |
| 484 Register index, | 480 Register index, |
| 485 SaveFPRegsMode save_fp, | 481 SaveFPRegsMode save_fp, |
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| 3528 j(greater, &no_memento_available); | 3524 j(greater, &no_memento_available); |
| 3529 cmp(MemOperand(scratch_reg, -AllocationMemento::kSize), | 3525 cmp(MemOperand(scratch_reg, -AllocationMemento::kSize), |
| 3530 Immediate(isolate()->factory()->allocation_memento_map())); | 3526 Immediate(isolate()->factory()->allocation_memento_map())); |
| 3531 bind(&no_memento_available); | 3527 bind(&no_memento_available); |
| 3532 } | 3528 } |
| 3533 | 3529 |
| 3534 | 3530 |
| 3535 } } // namespace v8::internal | 3531 } } // namespace v8::internal |
| 3536 | 3532 |
| 3537 #endif // V8_TARGET_ARCH_IA32 | 3533 #endif // V8_TARGET_ARCH_IA32 |
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