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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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29 | 29 |
30 #include "bootstrapper.h" | 30 #include "bootstrapper.h" |
31 #include "code-stubs.h" | 31 #include "code-stubs.h" |
32 #include "factory.h" | 32 #include "factory.h" |
33 #include "macro-assembler.h" | 33 #include "macro-assembler.h" |
34 | 34 |
35 namespace v8 { | 35 namespace v8 { |
36 namespace internal { | 36 namespace internal { |
37 | 37 |
38 Handle<Code> CodeStub::GetCode() { | 38 Handle<Code> CodeStub::GetCode() { |
39 bool custom_cache = has_custom_cache(); | 39 uint32_t key = GetKey(); |
40 | 40 int index = Heap::code_stubs()->FindEntry(key); |
41 int index = 0; | 41 if (index == NumberDictionary::kNotFound) { |
42 uint32_t key = 0; | 42 HandleScope scope; |
43 if (custom_cache) { | |
44 Code* cached; | |
45 if (GetCustomCache(&cached)) { | |
46 return Handle<Code>(cached); | |
47 } else { | |
48 index = NumberDictionary::kNotFound; | |
49 } | |
50 } else { | |
51 key = GetKey(); | |
52 index = Heap::code_stubs()->FindEntry(key); | |
53 if (index != NumberDictionary::kNotFound) | |
54 return Handle<Code>(Code::cast(Heap::code_stubs()->ValueAt(index))); | |
55 } | |
56 | |
57 Code* result; | |
58 { | |
59 v8::HandleScope scope; | |
60 | 43 |
61 // Update the static counter each time a new code stub is generated. | 44 // Update the static counter each time a new code stub is generated. |
62 Counters::code_stubs.Increment(); | 45 Counters::code_stubs.Increment(); |
63 | 46 |
64 // Generate the new code. | 47 // Generate the new code. |
65 MacroAssembler masm(NULL, 256); | 48 MacroAssembler masm(NULL, 256); |
66 | 49 |
67 // Nested stubs are not allowed for leafs. | 50 // Nested stubs are not allowed for leafs. |
68 masm.set_allow_stub_calls(AllowsStubCalls()); | 51 masm.set_allow_stub_calls(AllowsStubCalls()); |
69 | 52 |
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89 #ifdef ENABLE_DISASSEMBLER | 72 #ifdef ENABLE_DISASSEMBLER |
90 if (FLAG_print_code_stubs) { | 73 if (FLAG_print_code_stubs) { |
91 #ifdef DEBUG | 74 #ifdef DEBUG |
92 Print(); | 75 Print(); |
93 #endif | 76 #endif |
94 code->Disassemble(GetName()); | 77 code->Disassemble(GetName()); |
95 PrintF("\n"); | 78 PrintF("\n"); |
96 } | 79 } |
97 #endif | 80 #endif |
98 | 81 |
99 if (custom_cache) { | 82 // Update the dictionary and the root in Heap. |
100 SetCustomCache(*code); | 83 Handle<NumberDictionary> dict = |
101 } else { | 84 Factory::DictionaryAtNumberPut( |
102 // Update the dictionary and the root in Heap. | 85 Handle<NumberDictionary>(Heap::code_stubs()), |
103 Handle<NumberDictionary> dict = | 86 key, |
104 Factory::DictionaryAtNumberPut( | 87 code); |
105 Handle<NumberDictionary>(Heap::code_stubs()), | 88 Heap::public_set_code_stubs(*dict); |
106 key, | 89 index = Heap::code_stubs()->FindEntry(key); |
107 code); | |
108 Heap::public_set_code_stubs(*dict); | |
109 } | |
110 result = *code; | |
111 } | 90 } |
| 91 ASSERT(index != NumberDictionary::kNotFound); |
112 | 92 |
113 return Handle<Code>(result); | 93 return Handle<Code>(Code::cast(Heap::code_stubs()->ValueAt(index))); |
114 } | 94 } |
115 | 95 |
116 | 96 |
117 const char* CodeStub::MajorName(CodeStub::Major major_key) { | 97 const char* CodeStub::MajorName(CodeStub::Major major_key) { |
118 switch (major_key) { | 98 switch (major_key) { |
119 #define DEF_CASE(name) case name: return #name; | 99 #define DEF_CASE(name) case name: return #name; |
120 CODE_STUB_LIST_ALL(DEF_CASE) | 100 CODE_STUB_LIST_ALL(DEF_CASE) |
121 #undef DEF_CASE | 101 #undef DEF_CASE |
122 default: | 102 default: |
123 UNREACHABLE(); | 103 UNREACHABLE(); |
124 return NULL; | 104 return NULL; |
125 } | 105 } |
126 } | 106 } |
127 | 107 |
128 | 108 |
129 } } // namespace v8::internal | 109 } } // namespace v8::internal |
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