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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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49 allow_stub_calls_(true), | 49 allow_stub_calls_(true), |
50 has_frame_(false) { | 50 has_frame_(false) { |
51 if (isolate() != NULL) { | 51 if (isolate() != NULL) { |
52 // TODO(titzer): should we just use a null handle here instead? | 52 // TODO(titzer): should we just use a null handle here instead? |
53 code_object_ = Handle<Object>(isolate()->heap()->undefined_value(), | 53 code_object_ = Handle<Object>(isolate()->heap()->undefined_value(), |
54 isolate()); | 54 isolate()); |
55 } | 55 } |
56 } | 56 } |
57 | 57 |
58 | 58 |
59 void MacroAssembler::Load(Register dst, const Operand& src, Representation r) { | |
60 ASSERT(!r.IsDouble()); | |
61 if (r.IsInteger8()) { | |
62 movsx_b(dst, src); | |
63 } else if (r.IsUInteger8()) { | |
64 movzx_b(dst, src); | |
65 } else if (r.IsInteger16()) { | |
66 movsx_w(dst, src); | |
67 } else if (r.IsUInteger16()) { | |
68 movzx_w(dst, src); | |
69 } else { | |
70 mov(dst, src); | |
71 } | |
72 } | |
73 | |
74 | |
75 void MacroAssembler::Store(Register src, const Operand& dst, Representation r) { | |
76 ASSERT(!r.IsDouble()); | |
77 if (r.IsInteger8() || r.IsUInteger8()) { | |
78 mov_b(dst, src); | |
79 } else if (r.IsInteger16() || r.IsUInteger16()) { | |
80 mov_w(dst, src); | |
81 } else { | |
82 mov(dst, src); | |
83 } | |
84 } | |
85 | |
86 | |
87 void MacroAssembler::LoadRoot(Register destination, Heap::RootListIndex index) { | 59 void MacroAssembler::LoadRoot(Register destination, Heap::RootListIndex index) { |
88 if (isolate()->heap()->RootCanBeTreatedAsConstant(index)) { | 60 if (isolate()->heap()->RootCanBeTreatedAsConstant(index)) { |
89 Handle<Object> value(&isolate()->heap()->roots_array_start()[index]); | 61 Handle<Object> value(&isolate()->heap()->roots_array_start()[index]); |
90 mov(destination, value); | 62 mov(destination, value); |
91 return; | 63 return; |
92 } | 64 } |
93 ExternalReference roots_array_start = | 65 ExternalReference roots_array_start = |
94 ExternalReference::roots_array_start(isolate()); | 66 ExternalReference::roots_array_start(isolate()); |
95 mov(destination, Immediate(index)); | 67 mov(destination, Immediate(index)); |
96 mov(destination, Operand::StaticArray(destination, | 68 mov(destination, Operand::StaticArray(destination, |
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3597 cmp(scratch1, Immediate(DICTIONARY_ELEMENTS)); | 3569 cmp(scratch1, Immediate(DICTIONARY_ELEMENTS)); |
3598 j(equal, found); | 3570 j(equal, found); |
3599 mov(current, FieldOperand(current, Map::kPrototypeOffset)); | 3571 mov(current, FieldOperand(current, Map::kPrototypeOffset)); |
3600 cmp(current, Immediate(factory->null_value())); | 3572 cmp(current, Immediate(factory->null_value())); |
3601 j(not_equal, &loop_again); | 3573 j(not_equal, &loop_again); |
3602 } | 3574 } |
3603 | 3575 |
3604 } } // namespace v8::internal | 3576 } } // namespace v8::internal |
3605 | 3577 |
3606 #endif // V8_TARGET_ARCH_IA32 | 3578 #endif // V8_TARGET_ARCH_IA32 |
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