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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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50 | 50 |
51 namespace internal { | 51 namespace internal { |
52 | 52 |
53 struct StatsCounter; | 53 struct StatsCounter; |
54 const unsigned kNoASTId = -1; | 54 const unsigned kNoASTId = -1; |
55 // ----------------------------------------------------------------------------- | 55 // ----------------------------------------------------------------------------- |
56 // Platform independent assembler base class. | 56 // Platform independent assembler base class. |
57 | 57 |
58 class AssemblerBase: public Malloced { | 58 class AssemblerBase: public Malloced { |
59 public: | 59 public: |
60 AssemblerBase(Isolate* isolate, Zone* zone); | 60 explicit AssemblerBase(Isolate* isolate); |
61 | 61 |
62 Isolate* isolate() const { return isolate_; } | 62 Isolate* isolate() const { return isolate_; } |
63 int jit_cookie() { return jit_cookie_; } | 63 int jit_cookie() { return jit_cookie_; } |
64 | 64 |
65 // Overwrite a host NaN with a quiet target NaN. Used by mksnapshot for | 65 // Overwrite a host NaN with a quiet target NaN. Used by mksnapshot for |
66 // cross-snapshotting. | 66 // cross-snapshotting. |
67 static void QuietNaN(HeapObject* nan) { } | 67 static void QuietNaN(HeapObject* nan) { } |
68 | 68 |
69 Zone* zone() const { return zone_; } | |
70 | |
71 private: | 69 private: |
72 Isolate* isolate_; | 70 Isolate* isolate_; |
73 int jit_cookie_; | 71 int jit_cookie_; |
74 Zone* zone_; | |
75 }; | 72 }; |
76 | 73 |
77 | 74 |
78 // ----------------------------------------------------------------------------- | 75 // ----------------------------------------------------------------------------- |
79 // Labels represent pc locations; they are typically jump or call targets. | 76 // Labels represent pc locations; they are typically jump or call targets. |
80 // After declaration, a label can be freely used to denote known or (yet) | 77 // After declaration, a label can be freely used to denote known or (yet) |
81 // unknown pc location. Assembler::bind() is used to bind a label to the | 78 // unknown pc location. Assembler::bind() is used to bind a label to the |
82 // current pc. A label can be bound only once. | 79 // current pc. A label can be bound only once. |
83 | 80 |
84 class Label BASE_EMBEDDED { | 81 class Label BASE_EMBEDDED { |
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884 public: | 881 public: |
885 NullCallWrapper() { } | 882 NullCallWrapper() { } |
886 virtual ~NullCallWrapper() { } | 883 virtual ~NullCallWrapper() { } |
887 virtual void BeforeCall(int call_size) const { } | 884 virtual void BeforeCall(int call_size) const { } |
888 virtual void AfterCall() const { } | 885 virtual void AfterCall() const { } |
889 }; | 886 }; |
890 | 887 |
891 } } // namespace v8::internal | 888 } } // namespace v8::internal |
892 | 889 |
893 #endif // V8_ASSEMBLER_H_ | 890 #endif // V8_ASSEMBLER_H_ |
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