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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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 |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 #ifndef V8_HYDROGEN_BCE_H_ | 28 #ifndef V8_V8_PLATFORM_H_ |
29 #define V8_HYDROGEN_BCE_H_ | 29 #define V8_V8_PLATFORM_H_ |
30 | 30 |
31 #include "hydrogen.h" | 31 #include "v8.h" |
32 | 32 |
33 namespace v8 { | 33 namespace v8 { |
34 namespace internal { | |
35 | 34 |
35 /** | |
36 * A Task represents a unit of work. | |
37 */ | |
38 class Task { | |
39 public: | |
40 virtual ~Task() {} | |
36 | 41 |
37 class BoundsCheckBbData; | 42 virtual void Run() = 0; |
Sven Panne
2013/11/21 07:43:25
I think that at some point we need something like
jochen (gone - plz use gerrit)
2013/11/21 10:43:42
perfectly it will fit!
The main purpose of this c
| |
38 class BoundsCheckKey; | |
39 class BoundsCheckTable : private ZoneHashMap { | |
40 public: | |
41 explicit BoundsCheckTable(Zone* zone); | |
42 | |
43 INLINE(BoundsCheckBbData** LookupOrInsert(BoundsCheckKey* key, Zone* zone)); | |
44 INLINE(void Insert(BoundsCheckKey* key, BoundsCheckBbData* data, Zone* zone)); | |
45 INLINE(void Delete(BoundsCheckKey* key)); | |
46 | |
47 private: | |
48 DISALLOW_COPY_AND_ASSIGN(BoundsCheckTable); | |
49 }; | 43 }; |
50 | 44 |
45 /** | |
46 * V8 Platform abstraction layer. | |
47 * | |
48 * The embedder has to provide an implementation of this interface before | |
49 * initializing the rest of V8. | |
50 */ | |
51 class Platform { | |
52 public: | |
53 /** | |
54 * Schedules a task to be invoked on a background thread. |task_is_slow| | |
55 * indicates that the task will run a long time. The Platform implementation | |
56 * takes ownership of |task|. There is no guarantee about order of execution | |
57 * of tasks wrt order of scheduling, nor is there a guarantee about the | |
58 * thread the task will be run on. | |
59 */ | |
60 virtual void CallOnBackgroundThread(Task* task, bool task_is_slow) = 0; | |
Sven Panne
2013/11/21 07:43:25
Hmmm, why do we need task_is_slow? And what exactl
Benedikt Meurer
2013/11/21 07:49:27
In case we need to keep the "task_is_slow" paramet
jochen (gone - plz use gerrit)
2013/11/21 10:43:42
It's basically mirroring the windows threading API
jochen (gone - plz use gerrit)
2013/11/21 10:43:42
sure
| |
51 | 61 |
52 class HBoundsCheckEliminationPhase : public HPhase { | 62 /** |
53 public: | 63 * Schedules a task to be invoked on a foreground thread wrt a specific |
54 explicit HBoundsCheckEliminationPhase(HGraph* graph) | 64 * |isolate|. Tasks posted for the same isolate should be execute in order of |
55 : HPhase("H_Bounds checks elimination", graph), table_(zone()) { } | 65 * scheduling. The definition of "foreground" is opaque to V8. |
66 */ | |
67 virtual void CallOnForegroundThread(Isolate* isolate, Task* task) = 0; | |
56 | 68 |
57 void Run() { | 69 protected: |
58 EliminateRedundantBoundsChecks(graph()->entry_block()); | 70 virtual ~Platform() {} |
59 } | |
60 | |
61 private: | |
62 void EliminateRedundantBoundsChecks(HBasicBlock* bb); | |
63 BoundsCheckBbData* PreProcessBlock(HBasicBlock* bb); | |
64 void PostProcessBlock(HBasicBlock* bb, BoundsCheckBbData* data); | |
65 | |
66 BoundsCheckTable table_; | |
67 | |
68 DISALLOW_COPY_AND_ASSIGN(HBoundsCheckEliminationPhase); | |
69 }; | 71 }; |
70 | 72 |
73 } // namespace v8 | |
71 | 74 |
72 } } // namespace v8::internal | 75 #endif // V8_V8_PLATFORM_H_ |
73 | |
74 #endif // V8_HYDROGEN_BCE_H_ | |
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