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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 #if V8_TARGET_ARCH_ARM64 | 5 #if V8_TARGET_ARCH_ARM64 |
6 | 6 |
7 #include "src/ast/scopes.h" | 7 #include "src/ast/scopes.h" |
8 #include "src/code-factory.h" | 8 #include "src/code-factory.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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1073 | 1073 |
1074 // The enum cache is valid. Load the map of the object being | 1074 // The enum cache is valid. Load the map of the object being |
1075 // iterated over and use the cache for the iteration. | 1075 // iterated over and use the cache for the iteration. |
1076 Label use_cache; | 1076 Label use_cache; |
1077 __ Ldr(x0, FieldMemOperand(x0, HeapObject::kMapOffset)); | 1077 __ Ldr(x0, FieldMemOperand(x0, HeapObject::kMapOffset)); |
1078 __ B(&use_cache); | 1078 __ B(&use_cache); |
1079 | 1079 |
1080 // Get the set of properties to enumerate. | 1080 // Get the set of properties to enumerate. |
1081 __ Bind(&call_runtime); | 1081 __ Bind(&call_runtime); |
1082 __ Push(x0); // Duplicate the enumerable object on the stack. | 1082 __ Push(x0); // Duplicate the enumerable object on the stack. |
1083 __ CallRuntime(Runtime::kGetPropertyNamesFast); | 1083 __ CallRuntime(Runtime::kForInEnumerate); |
1084 PrepareForBailoutForId(stmt->EnumId(), TOS_REG); | 1084 PrepareForBailoutForId(stmt->EnumId(), TOS_REG); |
1085 | 1085 |
1086 // If we got a map from the runtime call, we can do a fast | 1086 // If we got a map from the runtime call, we can do a fast |
1087 // modification check. Otherwise, we got a fixed array, and we have | 1087 // modification check. Otherwise, we got a fixed array, and we have |
1088 // to do a slow check. | 1088 // to do a slow check. |
1089 Label fixed_array, no_descriptors; | 1089 Label fixed_array, no_descriptors; |
1090 __ Ldr(x2, FieldMemOperand(x0, HeapObject::kMapOffset)); | 1090 __ Ldr(x2, FieldMemOperand(x0, HeapObject::kMapOffset)); |
1091 __ JumpIfNotRoot(x2, Heap::kMetaMapRootIndex, &fixed_array); | 1091 __ JumpIfNotRoot(x2, Heap::kMetaMapRootIndex, &fixed_array); |
1092 | 1092 |
1093 // We got a map in register x0. Get the enumeration cache from it. | 1093 // We got a map in register x0. Get the enumeration cache from it. |
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4836 } | 4836 } |
4837 | 4837 |
4838 return INTERRUPT; | 4838 return INTERRUPT; |
4839 } | 4839 } |
4840 | 4840 |
4841 | 4841 |
4842 } // namespace internal | 4842 } // namespace internal |
4843 } // namespace v8 | 4843 } // namespace v8 |
4844 | 4844 |
4845 #endif // V8_TARGET_ARCH_ARM64 | 4845 #endif // V8_TARGET_ARCH_ARM64 |
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