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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/compiler.h" | 5 #include "src/compiler.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "src/ast/ast-numbering.h" | 9 #include "src/ast/ast-numbering.h" |
10 #include "src/ast/prettyprinter.h" | 10 #include "src/ast/prettyprinter.h" |
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103 return parse_info_ && parse_info_->literal() != nullptr; | 103 return parse_info_ && parse_info_->literal() != nullptr; |
104 } | 104 } |
105 | 105 |
106 | 106 |
107 bool CompilationInfo::has_scope() const { | 107 bool CompilationInfo::has_scope() const { |
108 return parse_info_ && parse_info_->scope() != nullptr; | 108 return parse_info_ && parse_info_->scope() != nullptr; |
109 } | 109 } |
110 | 110 |
111 | 111 |
112 CompilationInfo::CompilationInfo(ParseInfo* parse_info) | 112 CompilationInfo::CompilationInfo(ParseInfo* parse_info) |
113 : CompilationInfo(parse_info, nullptr, nullptr, BASE, parse_info->isolate(), | 113 : CompilationInfo(parse_info, nullptr, Code::ComputeFlags(Code::FUNCTION), |
114 parse_info->zone()) { | 114 BASE, parse_info->isolate(), parse_info->zone()) { |
115 // Compiling for the snapshot typically results in different code than | 115 // Compiling for the snapshot typically results in different code than |
116 // compiling later on. This means that code recompiled with deoptimization | 116 // compiling later on. This means that code recompiled with deoptimization |
117 // support won't be "equivalent" (as defined by SharedFunctionInfo:: | 117 // support won't be "equivalent" (as defined by SharedFunctionInfo:: |
118 // EnableDeoptimizationSupport), so it will replace the old code and all | 118 // EnableDeoptimizationSupport), so it will replace the old code and all |
119 // its type feedback. To avoid this, always compile functions in the snapshot | 119 // its type feedback. To avoid this, always compile functions in the snapshot |
120 // with deoptimization support. | 120 // with deoptimization support. |
121 if (isolate_->serializer_enabled()) EnableDeoptimizationSupport(); | 121 if (isolate_->serializer_enabled()) EnableDeoptimizationSupport(); |
122 | 122 |
123 if (FLAG_function_context_specialization) MarkAsFunctionContextSpecializing(); | 123 if (FLAG_function_context_specialization) MarkAsFunctionContextSpecializing(); |
124 if (FLAG_turbo_inlining) MarkAsInliningEnabled(); | 124 if (FLAG_turbo_inlining) MarkAsInliningEnabled(); |
125 if (FLAG_turbo_source_positions) MarkAsSourcePositionsEnabled(); | 125 if (FLAG_turbo_source_positions) MarkAsSourcePositionsEnabled(); |
126 if (FLAG_turbo_splitting) MarkAsSplittingEnabled(); | 126 if (FLAG_turbo_splitting) MarkAsSplittingEnabled(); |
127 if (FLAG_turbo_types) MarkAsTypingEnabled(); | 127 if (FLAG_turbo_types) MarkAsTypingEnabled(); |
128 | 128 |
129 if (has_shared_info()) { | 129 if (has_shared_info()) { |
130 if (shared_info()->is_compiled()) { | 130 if (shared_info()->is_compiled()) { |
131 // We should initialize the CompilationInfo feedback vector from the | 131 // We should initialize the CompilationInfo feedback vector from the |
132 // passed in shared info, rather than creating a new one. | 132 // passed in shared info, rather than creating a new one. |
133 feedback_vector_ = Handle<TypeFeedbackVector>( | 133 feedback_vector_ = Handle<TypeFeedbackVector>( |
134 shared_info()->feedback_vector(), parse_info->isolate()); | 134 shared_info()->feedback_vector(), parse_info->isolate()); |
135 } | 135 } |
136 if (shared_info()->never_compiled()) MarkAsFirstCompile(); | 136 if (shared_info()->never_compiled()) MarkAsFirstCompile(); |
137 } | 137 } |
138 } | 138 } |
139 | 139 |
140 | 140 |
141 CompilationInfo::CompilationInfo(CodeStub* stub, Isolate* isolate, Zone* zone) | 141 CompilationInfo::CompilationInfo(const char* debug_name, Isolate* isolate, |
142 : CompilationInfo(nullptr, stub, CodeStub::MajorName(stub->MajorKey()), | 142 Zone* zone, Code::Flags code_flags) |
143 STUB, isolate, zone) {} | 143 : CompilationInfo(nullptr, debug_name, code_flags, STUB, isolate, zone) {} |
144 | 144 |
145 CompilationInfo::CompilationInfo(const char* debug_name, Isolate* isolate, | 145 CompilationInfo::CompilationInfo(ParseInfo* parse_info, const char* debug_name, |
146 Zone* zone) | 146 Code::Flags code_flags, Mode mode, |
147 : CompilationInfo(nullptr, nullptr, debug_name, STUB, isolate, zone) { | |
148 set_output_code_kind(Code::STUB); | |
149 } | |
150 | |
151 CompilationInfo::CompilationInfo(ParseInfo* parse_info, CodeStub* code_stub, | |
152 const char* debug_name, Mode mode, | |
153 Isolate* isolate, Zone* zone) | 147 Isolate* isolate, Zone* zone) |
154 : parse_info_(parse_info), | 148 : parse_info_(parse_info), |
155 isolate_(isolate), | 149 isolate_(isolate), |
156 flags_(0), | 150 flags_(0), |
157 code_stub_(code_stub), | 151 code_flags_(code_flags), |
158 mode_(mode), | 152 mode_(mode), |
159 osr_ast_id_(BailoutId::None()), | 153 osr_ast_id_(BailoutId::None()), |
160 zone_(zone), | 154 zone_(zone), |
161 deferred_handles_(nullptr), | 155 deferred_handles_(nullptr), |
162 dependencies_(isolate, zone), | 156 dependencies_(isolate, zone), |
163 bailout_reason_(kNoReason), | 157 bailout_reason_(kNoReason), |
164 prologue_offset_(Code::kPrologueOffsetNotSet), | 158 prologue_offset_(Code::kPrologueOffsetNotSet), |
165 track_positions_(FLAG_hydrogen_track_positions || | 159 track_positions_(FLAG_hydrogen_track_positions || |
166 isolate->cpu_profiler()->is_profiling()), | 160 isolate->cpu_profiler()->is_profiling()), |
167 opt_count_(has_shared_info() ? shared_info()->opt_count() : 0), | 161 opt_count_(has_shared_info() ? shared_info()->opt_count() : 0), |
168 parameter_count_(0), | 162 parameter_count_(0), |
169 optimization_id_(-1), | 163 optimization_id_(-1), |
170 osr_expr_stack_height_(0), | 164 osr_expr_stack_height_(0), |
171 debug_name_(debug_name) { | 165 debug_name_(debug_name) {} |
172 // Parameter count is number of stack parameters. | |
173 if (code_stub_ != NULL) { | |
174 CodeStubDescriptor descriptor(code_stub_); | |
175 parameter_count_ = descriptor.GetStackParameterCount(); | |
176 if (descriptor.function_mode() == NOT_JS_FUNCTION_STUB_MODE) { | |
177 parameter_count_--; | |
178 } | |
179 set_output_code_kind(code_stub->GetCodeKind()); | |
180 } else { | |
181 set_output_code_kind(Code::FUNCTION); | |
182 } | |
183 } | |
184 | 166 |
185 | 167 |
186 CompilationInfo::~CompilationInfo() { | 168 CompilationInfo::~CompilationInfo() { |
187 DisableFutureOptimization(); | 169 DisableFutureOptimization(); |
188 delete deferred_handles_; | 170 delete deferred_handles_; |
189 #ifdef DEBUG | 171 #ifdef DEBUG |
190 // Check that no dependent maps have been added or added dependent maps have | 172 // Check that no dependent maps have been added or added dependent maps have |
191 // been rolled back or committed. | 173 // been rolled back or committed. |
192 DCHECK(dependencies()->IsEmpty()); | 174 DCHECK(dependencies()->IsEmpty()); |
193 #endif // DEBUG | 175 #endif // DEBUG |
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1845 } | 1827 } |
1846 | 1828 |
1847 #if DEBUG | 1829 #if DEBUG |
1848 void CompilationInfo::PrintAstForTesting() { | 1830 void CompilationInfo::PrintAstForTesting() { |
1849 PrintF("--- Source from AST ---\n%s\n", | 1831 PrintF("--- Source from AST ---\n%s\n", |
1850 PrettyPrinter(isolate()).PrintProgram(literal())); | 1832 PrettyPrinter(isolate()).PrintProgram(literal())); |
1851 } | 1833 } |
1852 #endif | 1834 #endif |
1853 } // namespace internal | 1835 } // namespace internal |
1854 } // namespace v8 | 1836 } // namespace v8 |
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