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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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 #include "src/compiler.h" | 7 #include "src/compiler.h" |
8 #include "src/interpreter/bytecode-array-iterator.h" | 8 #include "src/interpreter/bytecode-array-iterator.h" |
9 #include "src/interpreter/bytecode-generator.h" | 9 #include "src/interpreter/bytecode-generator.h" |
10 #include "src/interpreter/interpreter.h" | 10 #include "src/interpreter/interpreter.h" |
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4767 1, | 4767 1, |
4768 2, | 4768 2, |
4769 {B(LdaUndefined), B(Return)}, | 4769 {B(LdaUndefined), B(Return)}, |
4770 0}, | 4770 0}, |
4771 {"for (var p in undefined) {}", | 4771 {"for (var p in undefined) {}", |
4772 2 * kPointerSize, | 4772 2 * kPointerSize, |
4773 1, | 4773 1, |
4774 2, | 4774 2, |
4775 {B(LdaUndefined), B(Return)}, | 4775 {B(LdaUndefined), B(Return)}, |
4776 0}, | 4776 0}, |
| 4777 {"for (var p in undefined) {}", |
| 4778 2 * kPointerSize, |
| 4779 1, |
| 4780 2, |
| 4781 {B(LdaUndefined), B(Return)}, |
| 4782 0}, |
4777 {"var x = 'potatoes';\n" | 4783 {"var x = 'potatoes';\n" |
4778 "for (var p in x) { return p; }", | 4784 "for (var p in x) { return p; }", |
4779 5 * kPointerSize, | 4785 8 * kPointerSize, |
4780 1, | 4786 1, |
4781 46, | 4787 45, |
4782 { | 4788 { |
4783 B(LdaConstant), U8(0), // | 4789 B(LdaConstant), U8(0), // |
4784 B(Star), R(1), // | 4790 B(Star), R(1), // |
4785 B(JumpIfUndefined), U8(40), // | 4791 B(JumpIfUndefined), U8(39), // |
4786 B(JumpIfNull), U8(38), // | 4792 B(JumpIfNull), U8(37), // |
4787 B(ToObject), // | 4793 B(ToObject), // |
4788 B(Star), R(3), // | 4794 B(JumpIfNull), U8(34), // |
4789 B(CallRuntime), U16(Runtime::kGetPropertyNamesFast), R(3), U8(1), // | 4795 B(Star), R(3), // |
4790 B(ForInPrepare), R(3), // | 4796 B(ForInPrepare), R(4), R(5), R(6), // |
4791 B(JumpIfUndefined), U8(26), // | 4797 B(LdaZero), // |
4792 B(Star), R(4), // | 4798 B(Star), R(7), // |
4793 B(LdaZero), // | 4799 B(ForInDone), R(7), R(6), // |
4794 B(Star), R(3), // | 4800 B(JumpIfTrue), U8(20), // |
4795 B(ForInDone), R(4), // | 4801 B(ForInNext), R(3), R(4), R(5), R(7), // |
4796 B(JumpIfTrue), U8(17), // | 4802 B(JumpIfUndefined), U8(7), // |
4797 B(ForInNext), R(4), R(3), // | 4803 B(Star), R(0), // |
4798 B(JumpIfUndefined), U8(7), // | 4804 B(Star), R(2), // |
4799 B(Star), R(0), // | 4805 B(Return), // |
4800 B(Star), R(2), // | 4806 B(ForInStep), R(7), // |
4801 B(Return), // | 4807 B(Star), R(7), // |
4802 B(Ldar), R(3), // | 4808 B(Jump), U8(-21), // |
4803 B(Inc), // | 4809 B(LdaUndefined), // |
4804 B(Jump), U8(-19), // | 4810 B(Return), // |
4805 B(LdaUndefined), // | |
4806 B(Return), // | |
4807 }, | 4811 }, |
4808 1, | 4812 1, |
4809 {InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}}, | 4813 {InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}}, |
4810 {"var x = 0;\n" | 4814 {"var x = 0;\n" |
4811 "for (var p in [1,2,3]) { x += p; }", | 4815 "for (var p in [1,2,3]) { x += p; }", |
4812 5 * kPointerSize, | 4816 8 * kPointerSize, |
4813 1, | 4817 1, |
4814 52, | 4818 51, |
4815 { | 4819 { |
4816 B(LdaZero), // | 4820 B(LdaZero), // |
4817 B(Star), R(1), // | 4821 B(Star), R(1), // |
4818 B(CreateArrayLiteral), U8(0), U8(0), U8(simple_flags), // | 4822 B(CreateArrayLiteral), U8(0), U8(0), U8(3), // |
4819 B(JumpIfUndefined), U8(43), // | 4823 B(JumpIfUndefined), U8(42), // |
4820 B(JumpIfNull), U8(41), // | 4824 B(JumpIfNull), U8(40), // |
4821 B(ToObject), // | 4825 B(ToObject), // |
4822 B(Star), R(3), // | 4826 B(JumpIfNull), U8(37), // |
4823 B(CallRuntime), U16(Runtime::kGetPropertyNamesFast), R(3), U8(1), // | 4827 B(Star), R(3), // |
4824 B(ForInPrepare), R(3), // | 4828 B(ForInPrepare), R(4), R(5), R(6), // |
4825 B(JumpIfUndefined), U8(29), // | 4829 B(LdaZero), // |
4826 B(Star), R(4), // | 4830 B(Star), R(7), // |
4827 B(LdaZero), // | 4831 B(ForInDone), R(7), R(6), // |
4828 B(Star), R(3), // | 4832 B(JumpIfTrue), U8(23), // |
4829 B(ForInDone), R(4), // | 4833 B(ForInNext), R(3), R(4), R(5), R(7), // |
4830 B(JumpIfTrue), U8(20), // | 4834 B(JumpIfUndefined), U8(10), // |
4831 B(ForInNext), R(4), R(3), // | 4835 B(Star), R(0), // |
4832 B(JumpIfUndefined), U8(10), // | 4836 B(Star), R(2), // |
4833 B(Star), R(0), // | 4837 B(Add), R(1), // |
4834 B(Star), R(2), // | 4838 B(Star), R(1), // |
4835 B(Add), R(1), // | 4839 B(ForInStep), R(7), // |
4836 B(Star), R(1), // | 4840 B(Star), R(7), // |
4837 B(Ldar), R(3), // | 4841 B(Jump), U8(-24), // |
4838 B(Inc), // | 4842 B(LdaUndefined), // |
4839 B(Jump), U8(-22), // | 4843 B(Return), // |
4840 B(LdaUndefined), // | |
4841 B(Return), // | |
4842 }, | 4844 }, |
4843 1, | 4845 1, |
4844 {InstanceType::FIXED_ARRAY_TYPE}}, | 4846 {InstanceType::FIXED_ARRAY_TYPE}}, |
4845 {"var x = { 'a': 1, 'b': 2 };\n" | 4847 {"var x = { 'a': 1, 'b': 2 };\n" |
4846 "for (x['a'] in [10, 20, 30]) {\n" | 4848 "for (x['a'] in [10, 20, 30]) {\n" |
4847 " if (x['a'] == 10) continue;\n" | 4849 " if (x['a'] == 10) continue;\n" |
4848 " if (x['a'] == 20) break;\n" | 4850 " if (x['a'] == 20) break;\n" |
4849 "}", | 4851 "}", |
4850 4 * kPointerSize, | 4852 7 * kPointerSize, |
4851 1, | 4853 1, |
4852 81, | 4854 80, |
4853 { | 4855 { |
4854 B(CreateObjectLiteral), U8(0), U8(0), U8(deep_elements_flags), // | 4856 B(CreateObjectLiteral), U8(0), U8(0), U8(deep_elements_flags), // |
4855 B(Star), R(0), // | 4857 B(Star), R(0), // |
4856 B(CreateArrayLiteral), U8(1), U8(1), U8(simple_flags), // | 4858 B(CreateArrayLiteral), U8(1), U8(1), U8(simple_flags), // |
4857 B(JumpIfUndefined), U8(69), // | 4859 B(JumpIfUndefined), U8(68), // |
4858 B(JumpIfNull), U8(67), // | 4860 B(JumpIfNull), U8(66), // |
4859 B(ToObject), // | 4861 B(ToObject), // |
4860 B(Star), R(1), // | 4862 B(JumpIfNull), U8(63), // |
4861 B(CallRuntime), U16(Runtime::kGetPropertyNamesFast), R(1), U8(1), // | 4863 B(Star), R(1), // |
4862 B(ForInPrepare), R(1), // | 4864 B(ForInPrepare), R(2), R(3), R(4), // |
4863 B(JumpIfUndefined), U8(55), // | 4865 B(LdaZero), // |
4864 B(Star), R(2), // | 4866 B(Star), R(5), // |
4865 B(LdaZero), // | 4867 B(ForInDone), R(5), R(4), // |
4866 B(Star), R(1), // | 4868 B(JumpIfTrue), U8(49), // |
4867 B(ForInDone), R(2), // | 4869 B(ForInNext), R(1), R(2), R(3), R(5), // |
4868 B(JumpIfTrue), U8(46), // | 4870 B(JumpIfUndefined), U8(36), // |
4869 B(ForInNext), R(2), R(1), // | 4871 B(Star), R(6), // |
4870 B(JumpIfUndefined), U8(36), // | 4872 B(StoreICSloppy), R(0), U8(2), U8(vector->GetIndex(slot4)), // |
4871 B(Star), R(3), // | 4873 B(LoadICSloppy), R(0), U8(2), U8(vector->GetIndex(slot2)), // |
4872 B(StoreICSloppy), R(0), U8(2), U8(vector->GetIndex(slot4)), // | 4874 B(Star), R(6), // |
4873 B(LoadICSloppy), R(0), U8(2), U8(vector->GetIndex(slot2)), // | 4875 B(LdaSmi8), U8(10), // |
4874 B(Star), R(3), // | 4876 B(TestEqual), R(6), // |
4875 B(LdaSmi8), U8(10), // | 4877 B(JumpIfFalse), U8(4), // |
4876 B(TestEqual), R(3), // | 4878 B(Jump), U8(16), // |
4877 B(JumpIfFalse), U8(4), // | 4879 B(LoadICSloppy), R(0), U8(2), U8(vector->GetIndex(slot3)), // |
4878 B(Jump), U8(16), // | 4880 B(Star), R(6), // |
4879 B(LoadICSloppy), R(0), U8(2), U8(vector->GetIndex(slot3)), // | 4881 B(LdaSmi8), U8(20), // |
4880 B(Star), R(3), // | 4882 B(TestEqual), R(6), // |
4881 B(LdaSmi8), U8(20), // | 4883 B(JumpIfFalse), U8(4), // |
4882 B(TestEqual), R(3), // | 4884 B(Jump), U8(8), // |
4883 B(JumpIfFalse), U8(4), // | 4885 B(ForInStep), R(5), // |
4884 B(Jump), U8(7), // | 4886 B(Star), R(5), // |
4885 B(Ldar), R(1), // | 4887 B(Jump), U8(-50), // |
4886 B(Inc), // | 4888 B(LdaUndefined), // |
4887 B(Jump), U8(-48), // | 4889 B(Return), // |
4888 B(LdaUndefined), // | |
4889 B(Return), // | |
4890 }, | 4890 }, |
4891 3, | 4891 3, |
4892 {InstanceType::FIXED_ARRAY_TYPE, InstanceType::FIXED_ARRAY_TYPE, | 4892 {InstanceType::FIXED_ARRAY_TYPE, InstanceType::FIXED_ARRAY_TYPE, |
4893 InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}}, | 4893 InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}}, |
4894 {"var x = [ 10, 11, 12 ] ;\n" | 4894 {"var x = [ 10, 11, 12 ] ;\n" |
4895 "for (x[0] in [1,2,3]) { return x[3]; }", | 4895 "for (x[0] in [1,2,3]) { return x[3]; }", |
4896 5 * kPointerSize, | 4896 8 * kPointerSize, |
4897 1, | 4897 1, |
4898 64, | 4898 63, |
4899 { | 4899 { |
4900 B(CreateArrayLiteral), U8(0), U8(0), U8(simple_flags), // | 4900 B(CreateArrayLiteral), U8(0), U8(0), U8(simple_flags), // |
4901 B(Star), R(0), // | 4901 B(Star), R(0), // |
4902 B(CreateArrayLiteral), U8(1), U8(1), U8(simple_flags), // | 4902 B(CreateArrayLiteral), U8(1), U8(1), U8(simple_flags), // |
4903 B(JumpIfUndefined), U8(52), // | 4903 B(JumpIfUndefined), U8(51), // |
4904 B(JumpIfNull), U8(50), // | 4904 B(JumpIfNull), U8(49), // |
4905 B(ToObject), // | 4905 B(ToObject), // |
4906 B(Star), R(1), // | 4906 B(JumpIfNull), U8(46), // |
4907 B(CallRuntime), U16(Runtime::kGetPropertyNamesFast), R(1), U8(1), // | 4907 B(Star), R(1), // |
4908 B(ForInPrepare), R(1), // | 4908 B(ForInPrepare), R(2), R(3), R(4), // |
4909 B(JumpIfUndefined), U8(38), // | 4909 B(LdaZero), // |
4910 B(Star), R(2), // | 4910 B(Star), R(5), // |
4911 B(LdaZero), // | 4911 B(ForInDone), R(5), R(4), // |
4912 B(Star), R(1), // | 4912 B(JumpIfTrue), U8(32), // |
4913 B(ForInDone), R(2), // | 4913 B(ForInNext), R(1), R(2), R(3), R(5), // |
4914 B(JumpIfTrue), U8(29), // | 4914 B(JumpIfUndefined), U8(19), // |
4915 B(ForInNext), R(2), R(1), // | 4915 B(Star), R(6), // |
4916 B(JumpIfUndefined), U8(19), // | 4916 B(LdaZero), // |
4917 B(Star), R(3), // | 4917 B(Star), R(7), // |
4918 B(LdaZero), // | 4918 B(Ldar), R(6), // |
4919 B(Star), R(4), // | 4919 B(KeyedStoreICSloppy), R(0), R(7), U8(vector->GetIndex(slot3)), // |
4920 B(Ldar), R(3), // | 4920 B(LdaSmi8), U8(3), // |
4921 B(KeyedStoreICSloppy), R(0), R(4), U8(vector->GetIndex(slot3)), // | 4921 B(KeyedLoadICSloppy), R(0), U8(vector->GetIndex(slot2)), // |
4922 B(LdaSmi8), U8(3), // | 4922 B(Return), // |
4923 B(KeyedLoadICSloppy), R(0), U8(vector->GetIndex(slot2)), // | 4923 B(ForInStep), R(5), // |
4924 B(Return), // | 4924 B(Star), R(5), // |
4925 B(Ldar), R(1), // | 4925 B(Jump), U8(-33), // |
4926 B(Inc), // | 4926 B(LdaUndefined), // |
4927 B(Jump), U8(-31), // | 4927 B(Return), // |
4928 B(LdaUndefined), // | |
4929 B(Return), // | |
4930 }, | 4928 }, |
4931 2, | 4929 2, |
4932 {InstanceType::FIXED_ARRAY_TYPE, InstanceType::FIXED_ARRAY_TYPE}}, | 4930 {InstanceType::FIXED_ARRAY_TYPE, InstanceType::FIXED_ARRAY_TYPE}}, |
4933 }; | 4931 }; |
4934 | 4932 |
4935 for (size_t i = 0; i < arraysize(snippets); i++) { | 4933 for (size_t i = 0; i < arraysize(snippets); i++) { |
4936 Handle<BytecodeArray> bytecode_array = | 4934 Handle<BytecodeArray> bytecode_array = |
4937 helper.MakeBytecodeForFunctionBody(snippets[i].code_snippet); | 4935 helper.MakeBytecodeForFunctionBody(snippets[i].code_snippet); |
4938 CheckBytecodeArrayEqual(snippets[i], bytecode_array); | 4936 CheckBytecodeArrayEqual(snippets[i], bytecode_array); |
4939 } | 4937 } |
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5792 // inside eval. | 5790 // inside eval. |
5793 Handle<BytecodeArray> bytecode_array = | 5791 Handle<BytecodeArray> bytecode_array = |
5794 helper.MakeBytecode(script.c_str(), "t", "f"); | 5792 helper.MakeBytecode(script.c_str(), "t", "f"); |
5795 CheckBytecodeArrayEqual(snippets[i], bytecode_array); | 5793 CheckBytecodeArrayEqual(snippets[i], bytecode_array); |
5796 } | 5794 } |
5797 } | 5795 } |
5798 | 5796 |
5799 } // namespace interpreter | 5797 } // namespace interpreter |
5800 } // namespace internal | 5798 } // namespace internal |
5801 } // namespace v8 | 5799 } // namespace v8 |
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