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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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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1691 __ movl(EAX, Address(ESP, + 1 * kWordSize)); | 1691 __ movl(EAX, Address(ESP, + 1 * kWordSize)); |
1692 __ LoadClassIdMayBeSmi(EDI, EAX); | 1692 __ LoadClassIdMayBeSmi(EDI, EAX); |
1693 __ cmpl(EDI, Immediate(kClosureCid)); | 1693 __ cmpl(EDI, Immediate(kClosureCid)); |
1694 __ j(EQUAL, &fall_through, Assembler::kNearJump); // Instance is a closure. | 1694 __ j(EQUAL, &fall_through, Assembler::kNearJump); // Instance is a closure. |
1695 __ LoadClassById(EBX, EDI); | 1695 __ LoadClassById(EBX, EDI); |
1696 // EBX: class of instance (EAX). | 1696 // EBX: class of instance (EAX). |
1697 | 1697 |
1698 __ movzxw(EDI, FieldAddress(EBX, Class::num_type_arguments_offset())); | 1698 __ movzxw(EDI, FieldAddress(EBX, Class::num_type_arguments_offset())); |
1699 __ cmpl(EDI, Immediate(0)); | 1699 __ cmpl(EDI, Immediate(0)); |
1700 __ j(NOT_EQUAL, &fall_through, Assembler::kNearJump); | 1700 __ j(NOT_EQUAL, &fall_through, Assembler::kNearJump); |
1701 __ movl(EAX, FieldAddress(EBX, Class::canonical_types_offset())); | 1701 __ movl(EAX, FieldAddress(EBX, Class::canonical_type_offset())); |
1702 __ CompareObject(EAX, Object::null_object()); | 1702 __ CompareObject(EAX, Object::null_object()); |
1703 __ j(EQUAL, &fall_through, Assembler::kNearJump); // Not yet set. | 1703 __ j(EQUAL, &fall_through, Assembler::kNearJump); // Not yet set. |
1704 __ ret(); | 1704 __ ret(); |
1705 | 1705 |
1706 __ Bind(&fall_through); | 1706 __ Bind(&fall_through); |
1707 } | 1707 } |
1708 | 1708 |
1709 | 1709 |
1710 void Intrinsifier::String_getHashCode(Assembler* assembler) { | 1710 void Intrinsifier::String_getHashCode(Assembler* assembler) { |
1711 Label fall_through; | 1711 Label fall_through; |
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2153 __ Bind(&true_label); | 2153 __ Bind(&true_label); |
2154 __ LoadObject(EAX, Bool::True()); | 2154 __ LoadObject(EAX, Bool::True()); |
2155 __ ret(); | 2155 __ ret(); |
2156 } | 2156 } |
2157 | 2157 |
2158 #undef __ | 2158 #undef __ |
2159 | 2159 |
2160 } // namespace dart | 2160 } // namespace dart |
2161 | 2161 |
2162 #endif // defined TARGET_ARCH_IA32 | 2162 #endif // defined TARGET_ARCH_IA32 |
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