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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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5716 __ movzxbq(kScratchRegister, | 5716 __ movzxbq(kScratchRegister, |
5717 FieldOperand(kScratchRegister, Map::kInstanceTypeOffset)); | 5717 FieldOperand(kScratchRegister, Map::kInstanceTypeOffset)); |
5718 __ cmpq(kScratchRegister, Immediate(FIRST_JS_OBJECT_TYPE)); | 5718 __ cmpq(kScratchRegister, Immediate(FIRST_JS_OBJECT_TYPE)); |
5719 destination()->false_target()->Branch(below); | 5719 destination()->false_target()->Branch(below); |
5720 __ cmpq(kScratchRegister, Immediate(LAST_JS_OBJECT_TYPE)); | 5720 __ cmpq(kScratchRegister, Immediate(LAST_JS_OBJECT_TYPE)); |
5721 obj.Unuse(); | 5721 obj.Unuse(); |
5722 destination()->Split(below_equal); | 5722 destination()->Split(below_equal); |
5723 } | 5723 } |
5724 | 5724 |
5725 | 5725 |
| 5726 void CodeGenerator::GenerateIsSpecObject(ZoneList<Expression*>* args) { |
| 5727 // This generates a fast version of: |
| 5728 // (typeof(arg) === 'object' || %_ClassOf(arg) == 'RegExp' || |
| 5729 // typeof(arg) == function). |
| 5730 // It includes undetectable objects (as opposed to IsObject). |
| 5731 ASSERT(args->length() == 1); |
| 5732 Load(args->at(0)); |
| 5733 Result value = frame_->Pop(); |
| 5734 value.ToRegister(); |
| 5735 ASSERT(value.is_valid()); |
| 5736 Condition is_smi = masm_->CheckSmi(value.reg()); |
| 5737 destination()->false_target()->Branch(is_smi); |
| 5738 // Check that this is an object. |
| 5739 __ CmpObjectType(value.reg(), FIRST_JS_OBJECT_TYPE, kScratchRegister); |
| 5740 value.Unuse(); |
| 5741 destination()->Split(above_equal); |
| 5742 } |
| 5743 |
| 5744 |
5726 void CodeGenerator::GenerateIsFunction(ZoneList<Expression*>* args) { | 5745 void CodeGenerator::GenerateIsFunction(ZoneList<Expression*>* args) { |
5727 // This generates a fast version of: | 5746 // This generates a fast version of: |
5728 // (%_ClassOf(arg) === 'Function') | 5747 // (%_ClassOf(arg) === 'Function') |
5729 ASSERT(args->length() == 1); | 5748 ASSERT(args->length() == 1); |
5730 Load(args->at(0)); | 5749 Load(args->at(0)); |
5731 Result obj = frame_->Pop(); | 5750 Result obj = frame_->Pop(); |
5732 obj.ToRegister(); | 5751 obj.ToRegister(); |
5733 Condition is_smi = masm_->CheckSmi(obj.reg()); | 5752 Condition is_smi = masm_->CheckSmi(obj.reg()); |
5734 destination()->false_target()->Branch(is_smi); | 5753 destination()->false_target()->Branch(is_smi); |
5735 __ CmpObjectType(obj.reg(), JS_FUNCTION_TYPE, kScratchRegister); | 5754 __ CmpObjectType(obj.reg(), JS_FUNCTION_TYPE, kScratchRegister); |
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12100 #undef __ | 12119 #undef __ |
12101 | 12120 |
12102 void RecordWriteStub::Generate(MacroAssembler* masm) { | 12121 void RecordWriteStub::Generate(MacroAssembler* masm) { |
12103 masm->RecordWriteHelper(object_, addr_, scratch_); | 12122 masm->RecordWriteHelper(object_, addr_, scratch_); |
12104 masm->ret(0); | 12123 masm->ret(0); |
12105 } | 12124 } |
12106 | 12125 |
12107 } } // namespace v8::internal | 12126 } } // namespace v8::internal |
12108 | 12127 |
12109 #endif // V8_TARGET_ARCH_X64 | 12128 #endif // V8_TARGET_ARCH_X64 |
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