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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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 |
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48 | 48 |
49 class VirtualFrame : public ZoneObject { | 49 class VirtualFrame : public ZoneObject { |
50 public: | 50 public: |
51 class RegisterAllocationScope; | 51 class RegisterAllocationScope; |
52 // A utility class to introduce a scope where the virtual frame is | 52 // A utility class to introduce a scope where the virtual frame is |
53 // expected to remain spilled. The constructor spills the code | 53 // expected to remain spilled. The constructor spills the code |
54 // generator's current frame, and keeps it spilled. | 54 // generator's current frame, and keeps it spilled. |
55 class SpilledScope BASE_EMBEDDED { | 55 class SpilledScope BASE_EMBEDDED { |
56 public: | 56 public: |
57 explicit SpilledScope(VirtualFrame* frame) | 57 explicit SpilledScope(VirtualFrame* frame) |
58 : old_is_spilled_(is_spilled_) { | 58 : old_is_spilled_( |
| 59 Isolate::Current()->is_virtual_frame_in_spilled_scope()) { |
59 if (frame != NULL) { | 60 if (frame != NULL) { |
60 if (!is_spilled_) { | 61 if (!old_is_spilled_) { |
61 frame->SpillAll(); | 62 frame->SpillAll(); |
62 } else { | 63 } else { |
63 frame->AssertIsSpilled(); | 64 frame->AssertIsSpilled(); |
64 } | 65 } |
65 } | 66 } |
66 is_spilled_ = true; | 67 Isolate::Current()->set_is_virtual_frame_in_spilled_scope(true); |
67 } | 68 } |
68 ~SpilledScope() { | 69 ~SpilledScope() { |
69 is_spilled_ = old_is_spilled_; | 70 Isolate::Current()->set_is_virtual_frame_in_spilled_scope( |
| 71 old_is_spilled_); |
70 } | 72 } |
71 static bool is_spilled() { return is_spilled_; } | 73 static bool is_spilled() { |
| 74 return Isolate::Current()->is_virtual_frame_in_spilled_scope(); |
| 75 } |
72 | 76 |
73 private: | 77 private: |
74 static bool is_spilled_; | |
75 int old_is_spilled_; | 78 int old_is_spilled_; |
76 | 79 |
77 SpilledScope() { } | 80 SpilledScope() { } |
78 | 81 |
79 friend class RegisterAllocationScope; | 82 friend class RegisterAllocationScope; |
80 }; | 83 }; |
81 | 84 |
82 class RegisterAllocationScope BASE_EMBEDDED { | 85 class RegisterAllocationScope BASE_EMBEDDED { |
83 public: | 86 public: |
84 // A utility class to introduce a scope where the virtual frame | 87 // A utility class to introduce a scope where the virtual frame |
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267 // Call stub given the number of arguments it expects on (and | 270 // Call stub given the number of arguments it expects on (and |
268 // removes from) the stack. | 271 // removes from) the stack. |
269 inline void CallStub(CodeStub* stub, int arg_count); | 272 inline void CallStub(CodeStub* stub, int arg_count); |
270 | 273 |
271 // Call JS function from top of the stack with arguments | 274 // Call JS function from top of the stack with arguments |
272 // taken from the stack. | 275 // taken from the stack. |
273 void CallJSFunction(int arg_count); | 276 void CallJSFunction(int arg_count); |
274 | 277 |
275 // Call runtime given the number of arguments expected on (and | 278 // Call runtime given the number of arguments expected on (and |
276 // removed from) the stack. | 279 // removed from) the stack. |
277 void CallRuntime(Runtime::Function* f, int arg_count); | 280 void CallRuntime(const Runtime::Function* f, int arg_count); |
278 void CallRuntime(Runtime::FunctionId id, int arg_count); | 281 void CallRuntime(Runtime::FunctionId id, int arg_count); |
279 | 282 |
280 #ifdef ENABLE_DEBUGGER_SUPPORT | 283 #ifdef ENABLE_DEBUGGER_SUPPORT |
281 void DebugBreak(); | 284 void DebugBreak(); |
282 #endif | 285 #endif |
283 | 286 |
284 // Invoke builtin given the number of arguments it expects on (and | 287 // Invoke builtin given the number of arguments it expects on (and |
285 // removes from) the stack. | 288 // removes from) the stack. |
286 void InvokeBuiltin(Builtins::JavaScript id, | 289 void InvokeBuiltin(Builtins::JavaScript id, |
287 InvokeJSFlags flag, | 290 InvokeJSFlags flag, |
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511 } | 514 } |
512 } | 515 } |
513 | 516 |
514 friend class JumpTarget; | 517 friend class JumpTarget; |
515 }; | 518 }; |
516 | 519 |
517 | 520 |
518 } } // namespace v8::internal | 521 } } // namespace v8::internal |
519 | 522 |
520 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ | 523 #endif // V8_ARM_VIRTUAL_FRAME_ARM_H_ |
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