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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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54 // ----------------------------------------------------------------------------- | 54 // ----------------------------------------------------------------------------- |
55 // Platform independent assembler base class. | 55 // Platform independent assembler base class. |
56 | 56 |
57 class AssemblerBase: public Malloced { | 57 class AssemblerBase: public Malloced { |
58 public: | 58 public: |
59 explicit AssemblerBase(Isolate* isolate); | 59 explicit AssemblerBase(Isolate* isolate); |
60 | 60 |
61 Isolate* isolate() const { return isolate_; } | 61 Isolate* isolate() const { return isolate_; } |
62 int jit_cookie() const { return jit_cookie_; } | 62 int jit_cookie() const { return jit_cookie_; } |
63 | 63 |
| 64 bool emit_debug_code() const { return emit_debug_code_; } |
| 65 void set_emit_debug_code(bool value) { emit_debug_code_ = value; } |
| 66 |
64 bool predictable_code_size() const { return predictable_code_size_; } | 67 bool predictable_code_size() const { return predictable_code_size_; } |
65 void set_predictable_code_size(bool value) { predictable_code_size_ = value; } | 68 void set_predictable_code_size(bool value) { predictable_code_size_ = value; } |
66 | 69 |
67 // Overwrite a host NaN with a quiet target NaN. Used by mksnapshot for | 70 // Overwrite a host NaN with a quiet target NaN. Used by mksnapshot for |
68 // cross-snapshotting. | 71 // cross-snapshotting. |
69 static void QuietNaN(HeapObject* nan) { } | 72 static void QuietNaN(HeapObject* nan) { } |
70 | 73 |
71 private: | 74 private: |
72 Isolate* isolate_; | 75 Isolate* isolate_; |
73 int jit_cookie_; | 76 int jit_cookie_; |
| 77 bool emit_debug_code_; |
74 bool predictable_code_size_; | 78 bool predictable_code_size_; |
75 }; | 79 }; |
76 | 80 |
77 | 81 |
78 // Avoids using instructions that vary in size in unpredictable ways between the | 82 // Avoids using instructions that vary in size in unpredictable ways between the |
79 // snapshot and the running VM. | 83 // snapshot and the running VM. |
80 class PredictableCodeSizeScope { | 84 class PredictableCodeSizeScope { |
81 public: | 85 public: |
82 explicit PredictableCodeSizeScope(AssemblerBase* assembler) | 86 explicit PredictableCodeSizeScope(AssemblerBase* assembler) |
83 : assembler_(assembler) { | 87 : assembler_(assembler) { |
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933 public: | 937 public: |
934 NullCallWrapper() { } | 938 NullCallWrapper() { } |
935 virtual ~NullCallWrapper() { } | 939 virtual ~NullCallWrapper() { } |
936 virtual void BeforeCall(int call_size) const { } | 940 virtual void BeforeCall(int call_size) const { } |
937 virtual void AfterCall() const { } | 941 virtual void AfterCall() const { } |
938 }; | 942 }; |
939 | 943 |
940 } } // namespace v8::internal | 944 } } // namespace v8::internal |
941 | 945 |
942 #endif // V8_ASSEMBLER_H_ | 946 #endif // V8_ASSEMBLER_H_ |
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