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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 #ifndef V8_OPTIMIZING_COMPILER_THREAD_H_ | 5 #ifndef V8_OPTIMIZING_COMPILER_THREAD_H_ |
6 #define V8_OPTIMIZING_COMPILER_THREAD_H_ | 6 #define V8_OPTIMIZING_COMPILER_THREAD_H_ |
7 | 7 |
8 #include "src/base/atomicops.h" | 8 #include "src/base/atomicops.h" |
9 #include "src/base/platform/mutex.h" | 9 #include "src/base/platform/mutex.h" |
10 #include "src/base/platform/platform.h" | 10 #include "src/base/platform/platform.h" |
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77 static bool Enabled(int max_available) { | 77 static bool Enabled(int max_available) { |
78 return (FLAG_concurrent_recompilation && max_available > 1); | 78 return (FLAG_concurrent_recompilation && max_available > 1); |
79 } | 79 } |
80 | 80 |
81 #ifdef DEBUG | 81 #ifdef DEBUG |
82 static bool IsOptimizerThread(Isolate* isolate); | 82 static bool IsOptimizerThread(Isolate* isolate); |
83 bool IsOptimizerThread(); | 83 bool IsOptimizerThread(); |
84 #endif | 84 #endif |
85 | 85 |
86 private: | 86 private: |
| 87 class CompileTask; |
| 88 |
87 enum StopFlag { CONTINUE, STOP, FLUSH }; | 89 enum StopFlag { CONTINUE, STOP, FLUSH }; |
88 | 90 |
89 void FlushInputQueue(bool restore_function_code); | 91 void FlushInputQueue(bool restore_function_code); |
90 void FlushOutputQueue(bool restore_function_code); | 92 void FlushOutputQueue(bool restore_function_code); |
91 void FlushOsrBuffer(bool restore_function_code); | 93 void FlushOsrBuffer(bool restore_function_code); |
92 void CompileNext(); | 94 void CompileNext(); |
93 OptimizedCompileJob* NextInput(); | 95 OptimizedCompileJob* NextInput(); |
94 | 96 |
95 // Add a recompilation task for OSR to the cyclic buffer, awaiting OSR entry. | 97 // Add a recompilation task for OSR to the cyclic buffer, awaiting OSR entry. |
96 // Tasks evicted from the cyclic buffer are discarded. | 98 // Tasks evicted from the cyclic buffer are discarded. |
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114 | 116 |
115 // Circular queue of incoming recompilation tasks (including OSR). | 117 // Circular queue of incoming recompilation tasks (including OSR). |
116 OptimizedCompileJob** input_queue_; | 118 OptimizedCompileJob** input_queue_; |
117 int input_queue_capacity_; | 119 int input_queue_capacity_; |
118 int input_queue_length_; | 120 int input_queue_length_; |
119 int input_queue_shift_; | 121 int input_queue_shift_; |
120 base::Mutex input_queue_mutex_; | 122 base::Mutex input_queue_mutex_; |
121 | 123 |
122 // Queue of recompilation tasks ready to be installed (excluding OSR). | 124 // Queue of recompilation tasks ready to be installed (excluding OSR). |
123 UnboundQueue<OptimizedCompileJob*> output_queue_; | 125 UnboundQueue<OptimizedCompileJob*> output_queue_; |
| 126 // Used for job based recompilation which has multiple producers on |
| 127 // different threads. |
| 128 base::Mutex output_queue_mutex_; |
124 | 129 |
125 // Cyclic buffer of recompilation tasks for OSR. | 130 // Cyclic buffer of recompilation tasks for OSR. |
126 OptimizedCompileJob** osr_buffer_; | 131 OptimizedCompileJob** osr_buffer_; |
127 int osr_buffer_capacity_; | 132 int osr_buffer_capacity_; |
128 int osr_buffer_cursor_; | 133 int osr_buffer_cursor_; |
129 | 134 |
130 volatile base::AtomicWord stop_thread_; | 135 volatile base::AtomicWord stop_thread_; |
131 base::TimeDelta time_spent_compiling_; | 136 base::TimeDelta time_spent_compiling_; |
132 base::TimeDelta time_spent_total_; | 137 base::TimeDelta time_spent_total_; |
133 | 138 |
134 int osr_hits_; | 139 int osr_hits_; |
135 int osr_attempts_; | 140 int osr_attempts_; |
136 | 141 |
137 int blocked_jobs_; | 142 int blocked_jobs_; |
138 }; | 143 }; |
139 | 144 |
140 } } // namespace v8::internal | 145 } } // namespace v8::internal |
141 | 146 |
142 #endif // V8_OPTIMIZING_COMPILER_THREAD_H_ | 147 #endif // V8_OPTIMIZING_COMPILER_THREAD_H_ |
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