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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 // | 4 // |
| 5 // The intrinsic code below is executed before a method has built its frame. | 5 // The intrinsic code below is executed before a method has built its frame. |
| 6 // The return address is on the stack and the arguments below it. | 6 // The return address is on the stack and the arguments below it. |
| 7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved. | 7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved. |
| 8 // Each intrinsification method returns true if the corresponding | 8 // Each intrinsification method returns true if the corresponding |
| 9 // Dart method was intrinsified. | 9 // Dart method was intrinsified. |
| 10 | 10 |
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| 174 | 174 |
| 175 | 175 |
| 176 static intptr_t ComputeObjectArrayTypeArgumentsOffset() { | 176 static intptr_t ComputeObjectArrayTypeArgumentsOffset() { |
| 177 const String& class_name = String::Handle(Symbols::New("_ObjectArray")); | 177 const String& class_name = String::Handle(Symbols::New("_ObjectArray")); |
| 178 const Library& core_lib = Library::Handle(Library::CoreLibrary()); | 178 const Library& core_lib = Library::Handle(Library::CoreLibrary()); |
| 179 const Class& cls = | 179 const Class& cls = |
| 180 Class::Handle(core_lib.LookupClassAllowPrivate(class_name)); | 180 Class::Handle(core_lib.LookupClassAllowPrivate(class_name)); |
| 181 ASSERT(!cls.IsNull()); | 181 ASSERT(!cls.IsNull()); |
| 182 ASSERT(cls.HasTypeArguments()); | 182 ASSERT(cls.HasTypeArguments()); |
| 183 ASSERT(cls.NumTypeArguments() == 1); | 183 ASSERT(cls.NumTypeArguments() == 1); |
| 184 const intptr_t field_offset = cls.type_arguments_instance_field_offset(); | 184 const intptr_t field_offset = cls.type_arguments_field_offset(); |
| 185 ASSERT(field_offset != Class::kNoTypeArguments); | 185 ASSERT(field_offset != Class::kNoTypeArguments); |
| 186 return field_offset; | 186 return field_offset; |
| 187 } | 187 } |
| 188 | 188 |
| 189 | 189 |
| 190 // Intrinsify only for Smi value and index. Non-smi values need a store buffer | 190 // Intrinsify only for Smi value and index. Non-smi values need a store buffer |
| 191 // update. Array length is always a Smi. | 191 // update. Array length is always a Smi. |
| 192 bool Intrinsifier::Array_setIndexed(Assembler* assembler) { | 192 bool Intrinsifier::Array_setIndexed(Assembler* assembler) { |
| 193 Label fall_through; | 193 Label fall_through; |
| 194 if (FLAG_enable_type_checks) { | 194 if (FLAG_enable_type_checks) { |
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| 1733 __ Bind(&is_true); | 1733 __ Bind(&is_true); |
| 1734 __ LoadObject(EAX, bool_true); | 1734 __ LoadObject(EAX, bool_true); |
| 1735 __ ret(); | 1735 __ ret(); |
| 1736 return true; | 1736 return true; |
| 1737 } | 1737 } |
| 1738 | 1738 |
| 1739 #undef __ | 1739 #undef __ |
| 1740 } // namespace dart | 1740 } // namespace dart |
| 1741 | 1741 |
| 1742 #endif // defined TARGET_ARCH_IA32 | 1742 #endif // defined TARGET_ARCH_IA32 |
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