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Side by Side Diff: src/arm/simulator-arm.h

Issue 10386090: Implement loop for global regexps in regexp assembler. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: fix bugs, add tests, port to x64 and arm. Created 8 years, 7 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2012 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.
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42 // Running without a simulator on a native arm platform. 42 // Running without a simulator on a native arm platform.
43 43
44 namespace v8 { 44 namespace v8 {
45 namespace internal { 45 namespace internal {
46 46
47 // When running without a simulator we call the entry directly. 47 // When running without a simulator we call the entry directly.
48 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ 48 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
49 (entry(p0, p1, p2, p3, p4)) 49 (entry(p0, p1, p2, p3, p4))
50 50
51 typedef int (*arm_regexp_matcher)(String*, int, const byte*, const byte*, 51 typedef int (*arm_regexp_matcher)(String*, int, const byte*, const byte*,
52 void*, int*, Address, int, Isolate*); 52 void*, int*, int, Address, int, Isolate*);
53 53
54 54
55 // Call the generated regexp code directly. The code at the entry address 55 // Call the generated regexp code directly. The code at the entry address
56 // should act as a function matching the type arm_regexp_matcher. 56 // should act as a function matching the type arm_regexp_matcher.
57 // The fifth argument is a dummy that reserves the space used for 57 // The fifth argument is a dummy that reserves the space used for
58 // the return address added by the ExitFrame in native calls. 58 // the return address added by the ExitFrame in native calls.
59 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ 59 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7, p8) \
60 (FUNCTION_CAST<arm_regexp_matcher>(entry)( \ 60 (FUNCTION_CAST<arm_regexp_matcher>(entry)( \
61 p0, p1, p2, p3, NULL, p4, p5, p6, p7)) 61 p0, p1, p2, p3, NULL, p4, p5, p6, p7, p8))
62 62
63 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ 63 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \
64 reinterpret_cast<TryCatch*>(try_catch_address) 64 reinterpret_cast<TryCatch*>(try_catch_address)
65 65
66 // The stack limit beyond which we will throw stack overflow errors in 66 // The stack limit beyond which we will throw stack overflow errors in
67 // generated code. Because generated code on arm uses the C stack, we 67 // generated code. Because generated code on arm uses the C stack, we
68 // just use the C stack limit. 68 // just use the C stack limit.
69 class SimulatorStack : public v8::internal::AllStatic { 69 class SimulatorStack : public v8::internal::AllStatic {
70 public: 70 public:
71 static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate, 71 static inline uintptr_t JsLimitFromCLimit(v8::internal::Isolate* isolate,
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394 StopCountAndDesc watched_stops[kNumOfWatchedStops]; 394 StopCountAndDesc watched_stops[kNumOfWatchedStops];
395 }; 395 };
396 396
397 397
398 // When running with the simulator transition into simulated execution at this 398 // When running with the simulator transition into simulated execution at this
399 // point. 399 // point.
400 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \ 400 #define CALL_GENERATED_CODE(entry, p0, p1, p2, p3, p4) \
401 reinterpret_cast<Object*>(Simulator::current(Isolate::Current())->Call( \ 401 reinterpret_cast<Object*>(Simulator::current(Isolate::Current())->Call( \
402 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4)) 402 FUNCTION_ADDR(entry), 5, p0, p1, p2, p3, p4))
403 403
404 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7) \ 404 #define CALL_GENERATED_REGEXP_CODE(entry, p0, p1, p2, p3, p4, p5, p6, p7, p8) \
405 Simulator::current(Isolate::Current())->Call( \ 405 Simulator::current(Isolate::Current())->Call( \
406 entry, 9, p0, p1, p2, p3, NULL, p4, p5, p6, p7) 406 entry, 10, p0, p1, p2, p3, NULL, p4, p5, p6, p7, p8)
407 407
408 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \ 408 #define TRY_CATCH_FROM_ADDRESS(try_catch_address) \
409 try_catch_address == NULL ? \ 409 try_catch_address == NULL ? \
410 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address)) 410 NULL : *(reinterpret_cast<TryCatch**>(try_catch_address))
411 411
412 412
413 // The simulator has its own stack. Thus it has a different stack limit from 413 // The simulator has its own stack. Thus it has a different stack limit from
414 // the C-based native code. Setting the c_limit to indicate a very small 414 // the C-based native code. Setting the c_limit to indicate a very small
415 // stack cause stack overflow errors, since the simulator ignores the input. 415 // stack cause stack overflow errors, since the simulator ignores the input.
416 // This is unlikely to be an issue in practice, though it might cause testing 416 // This is unlikely to be an issue in practice, though it might cause testing
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429 429
430 static inline void UnregisterCTryCatch() { 430 static inline void UnregisterCTryCatch() {
431 Simulator::current(Isolate::Current())->PopAddress(); 431 Simulator::current(Isolate::Current())->PopAddress();
432 } 432 }
433 }; 433 };
434 434
435 } } // namespace v8::internal 435 } } // namespace v8::internal
436 436
437 #endif // !defined(USE_SIMULATOR) 437 #endif // !defined(USE_SIMULATOR)
438 #endif // V8_ARM_SIMULATOR_ARM_H_ 438 #endif // V8_ARM_SIMULATOR_ARM_H_
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