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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_IA32 | 7 #if V8_TARGET_ARCH_IA32 |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/ic-inl.h" | 10 #include "src/ic-inl.h" |
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572 // but may be destroyed if store is successful. | 572 // but may be destroyed if store is successful. |
573 void NamedStoreHandlerCompiler::GenerateStoreField( | 573 void NamedStoreHandlerCompiler::GenerateStoreField( |
574 Handle<JSObject> object, LookupResult* lookup, Register receiver_reg, | 574 Handle<JSObject> object, LookupResult* lookup, Register receiver_reg, |
575 Register name_reg, Register value_reg, Register scratch1, Register scratch2, | 575 Register name_reg, Register value_reg, Register scratch1, Register scratch2, |
576 Label* miss_label) { | 576 Label* miss_label) { |
577 // Stub never generated for objects that require access checks. | 577 // Stub never generated for objects that require access checks. |
578 DCHECK(!object->IsAccessCheckNeeded()); | 578 DCHECK(!object->IsAccessCheckNeeded()); |
579 DCHECK(!object->IsJSGlobalProxy()); | 579 DCHECK(!object->IsJSGlobalProxy()); |
580 | 580 |
581 FieldIndex index = lookup->GetFieldIndex(); | 581 FieldIndex index = lookup->GetFieldIndex(); |
582 | 582 DCHECK(lookup->representation().IsHeapObject()); |
583 Representation representation = lookup->representation(); | 583 __ JumpIfSmi(value_reg, miss_label); |
584 DCHECK(!representation.IsNone()); | 584 HeapType* field_type = lookup->GetFieldType(); |
585 if (representation.IsSmi()) { | 585 HeapType::Iterator<Map> it = field_type->Classes(); |
586 __ JumpIfNotSmi(value_reg, miss_label); | 586 if (!it.Done()) { |
587 } else if (representation.IsHeapObject()) { | 587 Label do_store; |
588 __ JumpIfSmi(value_reg, miss_label); | 588 while (true) { |
589 HeapType* field_type = lookup->GetFieldType(); | 589 __ CompareMap(value_reg, it.Current()); |
590 HeapType::Iterator<Map> it = field_type->Classes(); | 590 it.Advance(); |
591 if (!it.Done()) { | 591 if (it.Done()) { |
592 Label do_store; | 592 __ j(not_equal, miss_label); |
593 while (true) { | 593 break; |
594 __ CompareMap(value_reg, it.Current()); | |
595 it.Advance(); | |
596 if (it.Done()) { | |
597 __ j(not_equal, miss_label); | |
598 break; | |
599 } | |
600 __ j(equal, &do_store, Label::kNear); | |
601 } | 594 } |
602 __ bind(&do_store); | 595 __ j(equal, &do_store, Label::kNear); |
603 } | 596 } |
604 } else if (representation.IsDouble()) { | |
605 // Load the double storage. | |
606 if (index.is_inobject()) { | |
607 __ mov(scratch1, FieldOperand(receiver_reg, index.offset())); | |
608 } else { | |
609 __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset)); | |
610 __ mov(scratch1, FieldOperand(scratch1, index.offset())); | |
611 } | |
612 | |
613 // Store the value into the storage. | |
614 Label do_store, heap_number; | |
615 __ JumpIfNotSmi(value_reg, &heap_number); | |
616 __ SmiUntag(value_reg); | |
617 __ Cvtsi2sd(xmm0, value_reg); | |
618 __ SmiTag(value_reg); | |
619 __ jmp(&do_store); | |
620 __ bind(&heap_number); | |
621 __ CheckMap(value_reg, isolate()->factory()->heap_number_map(), miss_label, | |
622 DONT_DO_SMI_CHECK); | |
623 __ movsd(xmm0, FieldOperand(value_reg, HeapNumber::kValueOffset)); | |
624 __ bind(&do_store); | 597 __ bind(&do_store); |
625 __ movsd(FieldOperand(scratch1, HeapNumber::kValueOffset), xmm0); | |
626 // Return the value (register eax). | |
627 DCHECK(value_reg.is(eax)); | |
628 __ ret(0); | |
629 return; | |
630 } | 598 } |
631 | 599 |
632 DCHECK(!representation.IsDouble()); | |
633 // TODO(verwaest): Share this code as a code stub. | |
634 SmiCheck smi_check = representation.IsTagged() | |
635 ? INLINE_SMI_CHECK : OMIT_SMI_CHECK; | |
636 if (index.is_inobject()) { | 600 if (index.is_inobject()) { |
637 // Set the property straight into the object. | 601 // Set the property straight into the object. |
638 __ mov(FieldOperand(receiver_reg, index.offset()), value_reg); | 602 __ mov(FieldOperand(receiver_reg, index.offset()), value_reg); |
639 | 603 |
640 if (!representation.IsSmi()) { | 604 // Update the write barrier for the array address. |
641 // Update the write barrier for the array address. | 605 // Pass the value being stored in the now unused name_reg. |
642 // Pass the value being stored in the now unused name_reg. | 606 __ mov(name_reg, value_reg); |
643 __ mov(name_reg, value_reg); | 607 __ RecordWriteField(receiver_reg, index.offset(), name_reg, scratch1, |
644 __ RecordWriteField(receiver_reg, | 608 kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
645 index.offset(), | |
646 name_reg, | |
647 scratch1, | |
648 kDontSaveFPRegs, | |
649 EMIT_REMEMBERED_SET, | |
650 smi_check); | |
651 } | |
652 } else { | 609 } else { |
653 // Write to the properties array. | 610 // Write to the properties array. |
654 // Get the properties array (optimistically). | 611 // Get the properties array (optimistically). |
655 __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset)); | 612 __ mov(scratch1, FieldOperand(receiver_reg, JSObject::kPropertiesOffset)); |
656 __ mov(FieldOperand(scratch1, index.offset()), value_reg); | 613 __ mov(FieldOperand(scratch1, index.offset()), value_reg); |
657 | 614 |
658 if (!representation.IsSmi()) { | 615 // Update the write barrier for the array address. |
659 // Update the write barrier for the array address. | 616 // Pass the value being stored in the now unused name_reg. |
660 // Pass the value being stored in the now unused name_reg. | 617 __ mov(name_reg, value_reg); |
661 __ mov(name_reg, value_reg); | 618 __ RecordWriteField(scratch1, index.offset(), name_reg, receiver_reg, |
662 __ RecordWriteField(scratch1, | 619 kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK); |
663 index.offset(), | |
664 name_reg, | |
665 receiver_reg, | |
666 kDontSaveFPRegs, | |
667 EMIT_REMEMBERED_SET, | |
668 smi_check); | |
669 } | |
670 } | 620 } |
671 | 621 |
672 // Return the value (register eax). | 622 // Return the value (register eax). |
673 DCHECK(value_reg.is(eax)); | 623 DCHECK(value_reg.is(eax)); |
674 __ ret(0); | 624 __ ret(0); |
675 } | 625 } |
676 | 626 |
677 | 627 |
678 Register PropertyHandlerCompiler::CheckPrototypes( | 628 Register PropertyHandlerCompiler::CheckPrototypes( |
679 Register object_reg, Register holder_reg, Register scratch1, | 629 Register object_reg, Register holder_reg, Register scratch1, |
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1276 // ----------------------------------- | 1226 // ----------------------------------- |
1277 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); | 1227 TailCallBuiltin(masm, Builtins::kKeyedLoadIC_Miss); |
1278 } | 1228 } |
1279 | 1229 |
1280 | 1230 |
1281 #undef __ | 1231 #undef __ |
1282 | 1232 |
1283 } } // namespace v8::internal | 1233 } } // namespace v8::internal |
1284 | 1234 |
1285 #endif // V8_TARGET_ARCH_IA32 | 1235 #endif // V8_TARGET_ARCH_IA32 |
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