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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 |
| (...skipping 19 matching lines...) Expand all Loading... | |
| 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 #include "oprofile-agent.h" | 34 #include "oprofile-agent.h" |
| 35 | 35 |
| 36 namespace v8 { | 36 namespace v8 { |
| 37 namespace internal { | 37 namespace internal { |
| 38 | 38 |
| 39 bool CodeStub::FindCodeInCache(Code** code_out) { | 39 bool CodeStub::FindCodeInCache(Code** code_out) { |
| 40 if (has_custom_cache()) return GetCustomCache(code_out); | |
| 41 int index = Heap::code_stubs()->FindEntry(GetKey()); | 40 int index = Heap::code_stubs()->FindEntry(GetKey()); |
| 42 if (index != NumberDictionary::kNotFound) { | 41 if (index != NumberDictionary::kNotFound) { |
| 43 *code_out = Code::cast(Heap::code_stubs()->ValueAt(index)); | 42 *code_out = Code::cast(Heap::code_stubs()->ValueAt(index)); |
| 44 return true; | 43 return true; |
| 45 } | 44 } |
| 46 return false; | 45 return false; |
| 47 } | 46 } |
| 48 | 47 |
| 49 | 48 |
| 50 void CodeStub::GenerateCode(MacroAssembler* masm) { | 49 void CodeStub::GenerateCode(MacroAssembler* masm) { |
| (...skipping 47 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
| 98 masm.GetCode(&desc); | 97 masm.GetCode(&desc); |
| 99 | 98 |
| 100 // Copy the generated code into a heap object. | 99 // Copy the generated code into a heap object. |
| 101 Code::Flags flags = Code::ComputeFlags( | 100 Code::Flags flags = Code::ComputeFlags( |
| 102 static_cast<Code::Kind>(GetCodeKind()), | 101 static_cast<Code::Kind>(GetCodeKind()), |
| 103 InLoop(), | 102 InLoop(), |
| 104 GetICState()); | 103 GetICState()); |
| 105 Handle<Code> new_object = Factory::NewCode(desc, flags, masm.CodeObject()); | 104 Handle<Code> new_object = Factory::NewCode(desc, flags, masm.CodeObject()); |
| 106 RecordCodeGeneration(*new_object, &masm); | 105 RecordCodeGeneration(*new_object, &masm); |
| 107 | 106 |
| 108 if (has_custom_cache()) { | 107 // Update the dictionary and the root in Heap. |
| 109 SetCustomCache(*new_object); | 108 Handle<NumberDictionary> dict = |
| 110 } else { | 109 Factory::DictionaryAtNumberPut( |
| 111 // Update the dictionary and the root in Heap. | 110 Handle<NumberDictionary>(Heap::code_stubs()), |
| 112 Handle<NumberDictionary> dict = | 111 GetKey(), |
| 113 Factory::DictionaryAtNumberPut( | 112 new_object); |
| 114 Handle<NumberDictionary>(Heap::code_stubs()), | 113 Heap::public_set_code_stubs(*dict); |
| 115 GetKey(), | 114 |
| 116 new_object); | |
| 117 Heap::public_set_code_stubs(*dict); | |
| 118 } | |
| 119 code = *new_object; | 115 code = *new_object; |
| 120 } | 116 } |
| 121 | 117 |
| 122 return Handle<Code>(code); | 118 return Handle<Code>(code); |
| 123 } | 119 } |
| 124 | 120 |
| 125 | 121 |
| 126 MaybeObject* CodeStub::TryGetCode() { | 122 MaybeObject* CodeStub::TryGetCode() { |
| 127 Code* code; | 123 Code* code; |
| 128 if (!FindCodeInCache(&code)) { | 124 if (!FindCodeInCache(&code)) { |
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| 140 InLoop(), | 136 InLoop(), |
| 141 GetICState()); | 137 GetICState()); |
| 142 Object* new_object; | 138 Object* new_object; |
| 143 { MaybeObject* maybe_new_object = | 139 { MaybeObject* maybe_new_object = |
| 144 Heap::CreateCode(desc, flags, masm.CodeObject()); | 140 Heap::CreateCode(desc, flags, masm.CodeObject()); |
| 145 if (!maybe_new_object->ToObject(&new_object)) return maybe_new_object; | 141 if (!maybe_new_object->ToObject(&new_object)) return maybe_new_object; |
| 146 } | 142 } |
| 147 code = Code::cast(new_object); | 143 code = Code::cast(new_object); |
| 148 RecordCodeGeneration(code, &masm); | 144 RecordCodeGeneration(code, &masm); |
| 149 | 145 |
| 150 if (has_custom_cache()) { | 146 // Try to update the code cache but do not fail if unable. |
| 151 SetCustomCache(code); | 147 MaybeObject* maybe_new_object = |
| 152 } else { | 148 Heap::code_stubs()->AtNumberPut(GetKey(), code); |
|
antonm
2010/11/15 16:22:06
[cosmetic nit] just asking: can this fit one line
SeRya
2010/11/15 16:37:50
It can't (only if shorten the var name).
| |
| 153 // Try to update the code cache but do not fail if unable. | 149 if (maybe_new_object->ToObject(&new_object)) { |
| 154 MaybeObject* maybe_new_object = | 150 Heap::public_set_code_stubs(NumberDictionary::cast(new_object)); |
| 155 Heap::code_stubs()->AtNumberPut(GetKey(), code); | |
| 156 if (maybe_new_object->ToObject(&new_object)) { | |
| 157 Heap::public_set_code_stubs(NumberDictionary::cast(new_object)); | |
| 158 } | |
| 159 } | 151 } |
| 160 } | 152 } |
| 161 | 153 |
| 162 return code; | 154 return code; |
| 163 } | 155 } |
| 164 | 156 |
| 165 | 157 |
| 166 const char* CodeStub::MajorName(CodeStub::Major major_key, | 158 const char* CodeStub::MajorName(CodeStub::Major major_key, |
| 167 bool allow_unknown_keys) { | 159 bool allow_unknown_keys) { |
| 168 switch (major_key) { | 160 switch (major_key) { |
| 169 #define DEF_CASE(name) case name: return #name; | 161 #define DEF_CASE(name) case name: return #name; |
| 170 CODE_STUB_LIST(DEF_CASE) | 162 CODE_STUB_LIST(DEF_CASE) |
| 171 #undef DEF_CASE | 163 #undef DEF_CASE |
| 172 default: | 164 default: |
| 173 if (!allow_unknown_keys) { | 165 if (!allow_unknown_keys) { |
| 174 UNREACHABLE(); | 166 UNREACHABLE(); |
| 175 } | 167 } |
| 176 return NULL; | 168 return NULL; |
| 177 } | 169 } |
| 178 } | 170 } |
| 179 | 171 |
| 180 | 172 |
| 181 } } // namespace v8::internal | 173 } } // namespace v8::internal |
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