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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 // 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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599 1 << SharedFunctionInfo::kStrictModeBitWithinByte); | 599 1 << SharedFunctionInfo::kStrictModeBitWithinByte); |
600 __ j(not_equal, &shift_arguments); | 600 __ j(not_equal, &shift_arguments); |
601 | 601 |
602 // Do not transform the receiver for natives (shared already in ebx). | 602 // Do not transform the receiver for natives (shared already in ebx). |
603 __ test_b(FieldOperand(ebx, SharedFunctionInfo::kES5NativeByteOffset), | 603 __ test_b(FieldOperand(ebx, SharedFunctionInfo::kES5NativeByteOffset), |
604 1 << SharedFunctionInfo::kES5NativeBitWithinByte); | 604 1 << SharedFunctionInfo::kES5NativeBitWithinByte); |
605 __ j(not_equal, &shift_arguments); | 605 __ j(not_equal, &shift_arguments); |
606 | 606 |
607 // Compute the receiver in non-strict mode. | 607 // Compute the receiver in non-strict mode. |
608 __ mov(ebx, Operand(esp, eax, times_4, 0)); // First argument. | 608 __ mov(ebx, Operand(esp, eax, times_4, 0)); // First argument. |
| 609 |
| 610 // Call ToObject on the receiver if it is not an object, or use the |
| 611 // global object if it is null or undefined. |
609 __ test(ebx, Immediate(kSmiTagMask)); | 612 __ test(ebx, Immediate(kSmiTagMask)); |
610 __ j(zero, &convert_to_object); | 613 __ j(zero, &convert_to_object); |
611 | |
612 __ cmp(ebx, factory->null_value()); | 614 __ cmp(ebx, factory->null_value()); |
613 __ j(equal, &use_global_receiver); | 615 __ j(equal, &use_global_receiver); |
614 __ cmp(ebx, factory->undefined_value()); | 616 __ cmp(ebx, factory->undefined_value()); |
615 __ j(equal, &use_global_receiver); | 617 __ j(equal, &use_global_receiver); |
616 | 618 STATIC_ASSERT(LAST_JS_OBJECT_TYPE + 1 == LAST_TYPE); |
617 // We don't use IsObjectJSObjectType here because we jump on success. | 619 STATIC_ASSERT(LAST_TYPE == JS_FUNCTION_TYPE); |
618 __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset)); | 620 __ CmpObjectType(ebx, FIRST_JS_OBJECT_TYPE, ecx); |
619 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); | 621 __ j(above_equal, &shift_arguments); |
620 __ sub(Operand(ecx), Immediate(FIRST_JS_OBJECT_TYPE)); | |
621 __ cmp(ecx, LAST_JS_OBJECT_TYPE - FIRST_JS_OBJECT_TYPE); | |
622 __ j(below_equal, &shift_arguments); | |
623 | 622 |
624 __ bind(&convert_to_object); | 623 __ bind(&convert_to_object); |
625 __ EnterInternalFrame(); // In order to preserve argument count. | 624 __ EnterInternalFrame(); // In order to preserve argument count. |
626 __ SmiTag(eax); | 625 __ SmiTag(eax); |
627 __ push(eax); | 626 __ push(eax); |
628 | 627 |
629 __ push(ebx); | 628 __ push(ebx); |
630 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); | 629 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); |
631 __ mov(ebx, eax); | 630 __ mov(ebx, eax); |
632 | 631 |
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761 __ j(not_equal, &push_receiver); | 760 __ j(not_equal, &push_receiver); |
762 | 761 |
763 Factory* factory = masm->isolate()->factory(); | 762 Factory* factory = masm->isolate()->factory(); |
764 | 763 |
765 // Do not transform the receiver for natives (shared already in ecx). | 764 // Do not transform the receiver for natives (shared already in ecx). |
766 __ test_b(FieldOperand(ecx, SharedFunctionInfo::kES5NativeByteOffset), | 765 __ test_b(FieldOperand(ecx, SharedFunctionInfo::kES5NativeByteOffset), |
767 1 << SharedFunctionInfo::kES5NativeBitWithinByte); | 766 1 << SharedFunctionInfo::kES5NativeBitWithinByte); |
768 __ j(not_equal, &push_receiver); | 767 __ j(not_equal, &push_receiver); |
769 | 768 |
770 // Compute the receiver in non-strict mode. | 769 // Compute the receiver in non-strict mode. |
| 770 // Call ToObject on the receiver if it is not an object, or use the |
| 771 // global object if it is null or undefined. |
771 __ test(ebx, Immediate(kSmiTagMask)); | 772 __ test(ebx, Immediate(kSmiTagMask)); |
772 __ j(zero, &call_to_object); | 773 __ j(zero, &call_to_object); |
773 __ cmp(ebx, factory->null_value()); | 774 __ cmp(ebx, factory->null_value()); |
774 __ j(equal, &use_global_receiver); | 775 __ j(equal, &use_global_receiver); |
775 __ cmp(ebx, factory->undefined_value()); | 776 __ cmp(ebx, factory->undefined_value()); |
776 __ j(equal, &use_global_receiver); | 777 __ j(equal, &use_global_receiver); |
| 778 STATIC_ASSERT(LAST_JS_OBJECT_TYPE + 1 == LAST_TYPE); |
| 779 STATIC_ASSERT(LAST_TYPE == JS_FUNCTION_TYPE); |
| 780 __ CmpObjectType(ebx, FIRST_JS_OBJECT_TYPE, ecx); |
| 781 __ j(above_equal, &push_receiver); |
777 | 782 |
778 // If given receiver is already a JavaScript object then there's no | |
779 // reason for converting it. | |
780 // We don't use IsObjectJSObjectType here because we jump on success. | |
781 __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset)); | |
782 __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); | |
783 __ sub(Operand(ecx), Immediate(FIRST_JS_OBJECT_TYPE)); | |
784 __ cmp(ecx, LAST_JS_OBJECT_TYPE - FIRST_JS_OBJECT_TYPE); | |
785 __ j(below_equal, &push_receiver); | |
786 | |
787 // Convert the receiver to an object. | |
788 __ bind(&call_to_object); | 783 __ bind(&call_to_object); |
789 __ push(ebx); | 784 __ push(ebx); |
790 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); | 785 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); |
791 __ mov(ebx, Operand(eax)); | 786 __ mov(ebx, Operand(eax)); |
792 __ jmp(&push_receiver); | 787 __ jmp(&push_receiver); |
793 | 788 |
794 // Use the current global receiver object as the receiver. | 789 // Use the current global receiver object as the receiver. |
795 __ bind(&use_global_receiver); | 790 __ bind(&use_global_receiver); |
796 const int kGlobalOffset = | 791 const int kGlobalOffset = |
797 Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize; | 792 Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize; |
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1598 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); | 1593 Deoptimizer::EntryGenerator generator(masm, Deoptimizer::OSR); |
1599 generator.Generate(); | 1594 generator.Generate(); |
1600 } | 1595 } |
1601 | 1596 |
1602 | 1597 |
1603 #undef __ | 1598 #undef __ |
1604 } | 1599 } |
1605 } // namespace v8::internal | 1600 } // namespace v8::internal |
1606 | 1601 |
1607 #endif // V8_TARGET_ARCH_IA32 | 1602 #endif // V8_TARGET_ARCH_IA32 |
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