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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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1721 // Set Isolate::user_tag_. | 1721 // Set Isolate::user_tag_. |
1722 __ movl(user_tag_addr, EBX); | 1722 __ movl(user_tag_addr, EBX); |
1723 __ ret(); | 1723 __ ret(); |
1724 } | 1724 } |
1725 | 1725 |
1726 | 1726 |
1727 void Intrinsifier::UserTag_defaultTag(Assembler* assembler) { | 1727 void Intrinsifier::UserTag_defaultTag(Assembler* assembler) { |
1728 Isolate* isolate = Isolate::Current(); | 1728 Isolate* isolate = Isolate::Current(); |
1729 const Address default_tag_addr = | 1729 const Address default_tag_addr = |
1730 Address::Absolute( | 1730 Address::Absolute( |
1731 reinterpret_cast<uword>(isolate->object_store()) + | 1731 reinterpret_cast<uword>(isolate) + Isolate::default_tag_offset()); |
1732 ObjectStore::default_tag_offset()); | |
1733 // Set return value. | 1732 // Set return value. |
1734 __ movl(EAX, default_tag_addr); | 1733 __ movl(EAX, default_tag_addr); |
1735 __ ret(); | 1734 __ ret(); |
1736 } | 1735 } |
1737 | 1736 |
1738 | 1737 |
1739 void Intrinsifier::Profiler_getCurrentTag(Assembler* assembler) { | 1738 void Intrinsifier::Profiler_getCurrentTag(Assembler* assembler) { |
1740 Isolate* isolate = Isolate::Current(); | 1739 Isolate* isolate = Isolate::Current(); |
1741 const Address current_tag_addr = | 1740 const Address current_tag_addr = |
1742 Address::Absolute(reinterpret_cast<uword>(isolate) + | 1741 Address::Absolute(reinterpret_cast<uword>(isolate) + |
1743 Isolate::current_tag_offset()); | 1742 Isolate::current_tag_offset()); |
1744 // Set return value to Isolate::current_tag_. | 1743 // Set return value to Isolate::current_tag_. |
1745 __ movl(EAX, current_tag_addr); | 1744 __ movl(EAX, current_tag_addr); |
1746 __ ret(); | 1745 __ ret(); |
1747 } | 1746 } |
1748 | 1747 |
1749 #undef __ | 1748 #undef __ |
1750 } // namespace dart | 1749 } // namespace dart |
1751 | 1750 |
1752 #endif // defined TARGET_ARCH_IA32 | 1751 #endif // defined TARGET_ARCH_IA32 |
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