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Issue 10436012: MIPS: Implement loop for global regexps in regexp assembler. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 8 years, 7 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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43 // Running without a simulator on a native mips platform. 43 // Running without a simulator on a native mips platform.
44 44
45 namespace v8 { 45 namespace v8 {
46 namespace internal { 46 namespace internal {
47 47
48 // When running without a simulator we call the entry directly. 48 // When running without a simulator we call the entry directly.
49 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ 49 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
50 entry(p0, p1, p2, p3, p4) 50 entry(p0, p1, p2, p3, p4)
51 51
52 typedef int (*mips_regexp_matcher)(String*, int, const byte*, const byte*, 52 typedef int (*mips_regexp_matcher)(String*, int, const byte*, const byte*,
53 void*, int*, Address, int, Isolate*); 53 void*, int*, int, Address, int, Isolate*);
54 54
55 55
56 // Call the generated regexp code directly. The code at the entry address 56 // Call the generated regexp code directly. The code at the entry address
57 // should act as a function matching the type arm_regexp_matcher. 57 // should act as a function matching the type arm_regexp_matcher.
58 // The fifth argument is a dummy that reserves the space used for 58 // The fifth argument is a dummy that reserves the space used for
59 // the return address added by the ExitFrame in native calls. 59 // the return address added by the ExitFrame in native calls.
60 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ 60 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7, p8) \
61 (FUNCTION_CAST<mips_regexp_matcher>(entry)( \ 61 (FUNCTION_CAST<mips_regexp_matcher>(entry)( \
62 p0, p1, p2, p3, NULL, p4, p5, p6, p7)) 62 p0, p1, p2, p3, NULL, p4, p5, p6, p7, p8))
63 63
64 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ 64 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \
65 reinterpret_cast<TryCatch*>(try_catch_address) 65 reinterpret_cast<TryCatch*>(try_catch_address)
66 66
67 // The stack limit beyond which we will throw stack overflow errors in 67 // The stack limit beyond which we will throw stack overflow errors in
68 // generated code. Because generated code on mips uses the C stack, we 68 // generated code. Because generated code on mips uses the C stack, we
69 // just use the C stack limit. 69 // just use the C stack limit.
70 class SimulatorStack : public v8::internal::AllStatic { 70 class SimulatorStack : public v8::internal::AllStatic {
71 public: 71 public:
72 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate, 72 static inline uintptr_t JsLimitFromCLimit(Isolate* isolate,
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396 StopCountAndDesc watched_stops[kMaxStopCode + 1]; 396 StopCountAndDesc watched_stops[kMaxStopCode + 1];
397 }; 397 };
398 398
399 399
400 // When running with the simulator transition into simulated execution at this 400 // When running with the simulator transition into simulated execution at this
401 // point. 401 // point.
402 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ 402 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
403 reinterpret_cast<Object*>(Simulator::current(Isolate::Current())->Call( \ 403 reinterpret_cast<Object*>(Simulator::current(Isolate::Current())->Call( \
404 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4)) 404 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4))
405 405
406 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ 406 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7, p8) \
407 Simulator::current(Isolate::Current())->Call( \ 407 Simulator::current(Isolate::Current())->Call( \
408 entry, 9, p0, p1, p2, p3, NULL, p4, p5, p6, p7) 408 entry, 10, p0, p1, p2, p3, NULL, p4, p5, p6, p7, p8)
409 409
410 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ 410 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \
411 try_catch_address == NULL ? \ 411 try_catch_address == NULL ? \
412 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address)) 412 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address))
413 413
414 414
415 // The simulator has its own stack. Thus it has a different stack limit from 415 // The simulator has its own stack. Thus it has a different stack limit from
416 // the C-based native code. Setting the c_limit to indicate a very small 416 // the C-based native code. Setting the c_limit to indicate a very small
417 // stack cause stack overflow errors, since the simulator ignores the input. 417 // stack cause stack overflow errors, since the simulator ignores the input.
418 // This is unlikely to be an issue in practice, though it might cause testing 418 // This is unlikely to be an issue in practice, though it might cause testing
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431 431
432 static inline void UnregisterCTryCatch() { 432 static inline void UnregisterCTryCatch() {
433 Simulator::current(Isolate::Current())->PopAddress(); 433 Simulator::current(Isolate::Current())->PopAddress();
434 } 434 }
435 }; 435 };
436 436
437 } } // namespace v8::internal 437 } } // namespace v8::internal
438 438
439 #endif // !defined(USE_SIMULATOR) 439 #endif // !defined(USE_SIMULATOR)
440 #endif // V8_MIPS_SIMULATOR_MIPS_H_ 440 #endif // V8_MIPS_SIMULATOR_MIPS_H_
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