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1 // Copyright 2007-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2007-2008 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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33 #include "prettyprinter.h" | 33 #include "prettyprinter.h" |
34 #include "scopeinfo.h" | 34 #include "scopeinfo.h" |
35 #include "runtime.h" | 35 #include "runtime.h" |
36 #include "stub-cache.h" | 36 #include "stub-cache.h" |
37 | 37 |
38 namespace v8 { namespace internal { | 38 namespace v8 { namespace internal { |
39 | 39 |
40 DeferredCode::DeferredCode(CodeGenerator* generator) | 40 DeferredCode::DeferredCode(CodeGenerator* generator) |
41 : masm_(generator->masm()), | 41 : masm_(generator->masm()), |
42 generator_(generator), | 42 generator_(generator), |
43 statement_position_(masm_->last_statement_position()), | 43 statement_position_(masm_->current_statement_position()), |
44 position_(masm_->last_position()) { | 44 position_(masm_->current_position()) { |
45 generator->AddDeferred(this); | 45 generator->AddDeferred(this); |
| 46 ASSERT(statement_position_ != RelocInfo::kNoPosition); |
| 47 ASSERT(position_ != RelocInfo::kNoPosition); |
46 #ifdef DEBUG | 48 #ifdef DEBUG |
47 comment_ = ""; | 49 comment_ = ""; |
48 #endif | 50 #endif |
49 } | 51 } |
50 | 52 |
51 | 53 |
52 void CodeGenerator::ProcessDeferred() { | 54 void CodeGenerator::ProcessDeferred() { |
53 while (!deferred_.is_empty()) { | 55 while (!deferred_.is_empty()) { |
54 DeferredCode* code = deferred_.RemoveLast(); | 56 DeferredCode* code = deferred_.RemoveLast(); |
55 MacroAssembler* masm = code->masm(); | 57 MacroAssembler* masm = code->masm(); |
56 // Record position of deferred code stub. | 58 // Record position of deferred code stub. |
57 if (code->statement_position() != RelocInfo::kNoPosition) { | 59 masm->RecordStatementPosition(code->statement_position()); |
58 masm->RecordStatementPosition(code->statement_position()); | |
59 } | |
60 if (code->position() != RelocInfo::kNoPosition) { | 60 if (code->position() != RelocInfo::kNoPosition) { |
61 masm->RecordPosition(code->position()); | 61 masm->RecordPosition(code->position()); |
62 } | 62 } |
63 // Bind labels and generate the code. | 63 // Bind labels and generate the code. |
64 masm->bind(code->enter()); | 64 masm->bind(code->enter()); |
65 Comment cmnt(masm, code->comment()); | 65 Comment cmnt(masm, code->comment()); |
66 code->Generate(); | 66 code->Generate(); |
67 if (code->exit()->is_bound()) { | 67 if (code->exit()->is_bound()) { |
68 masm->jmp(code->exit()); // platform independent? | 68 masm->jmp(code->exit()); // platform independent? |
69 } | 69 } |
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457 if (range / FastCaseSwitchMaxOverheadFactor() > length) { | 457 if (range / FastCaseSwitchMaxOverheadFactor() > length) { |
458 return false; // range of labels is too sparse | 458 return false; // range of labels is too sparse |
459 } | 459 } |
460 | 460 |
461 // Optimization accepted, generate code. | 461 // Optimization accepted, generate code. |
462 GenerateFastCaseSwitchStatement(node, min_index, range, default_index); | 462 GenerateFastCaseSwitchStatement(node, min_index, range, default_index); |
463 return true; | 463 return true; |
464 } | 464 } |
465 | 465 |
466 | 466 |
| 467 void CodeGenerator::CodeForStatement(Node* node) { |
| 468 if (FLAG_debug_info) { |
| 469 int pos = node->statement_pos(); |
| 470 if (pos != RelocInfo::kNoPosition) { |
| 471 masm()->RecordStatementPosition(pos); |
| 472 CodeForSourcePosition(pos); |
| 473 } |
| 474 } |
| 475 } |
| 476 |
| 477 |
| 478 void CodeGenerator::CodeForSourcePosition(int pos) { |
| 479 if (FLAG_debug_info) { |
| 480 if (pos != RelocInfo::kNoPosition) { |
| 481 masm()->RecordPosition(pos); |
| 482 } |
| 483 } |
| 484 } |
| 485 |
| 486 |
467 const char* RuntimeStub::GetName() { | 487 const char* RuntimeStub::GetName() { |
468 return Runtime::FunctionForId(id_)->stub_name; | 488 return Runtime::FunctionForId(id_)->stub_name; |
469 } | 489 } |
470 | 490 |
471 | 491 |
472 void RuntimeStub::Generate(MacroAssembler* masm) { | 492 void RuntimeStub::Generate(MacroAssembler* masm) { |
473 masm->TailCallRuntime(ExternalReference(id_), num_arguments_); | 493 masm->TailCallRuntime(ExternalReference(id_), num_arguments_); |
474 } | 494 } |
475 | 495 |
476 | 496 |
477 void ArgumentsAccessStub::Generate(MacroAssembler* masm) { | 497 void ArgumentsAccessStub::Generate(MacroAssembler* masm) { |
478 switch (type_) { | 498 switch (type_) { |
479 case READ_LENGTH: GenerateReadLength(masm); break; | 499 case READ_LENGTH: GenerateReadLength(masm); break; |
480 case READ_ELEMENT: GenerateReadElement(masm); break; | 500 case READ_ELEMENT: GenerateReadElement(masm); break; |
481 case NEW_OBJECT: GenerateNewObject(masm); break; | 501 case NEW_OBJECT: GenerateNewObject(masm); break; |
482 } | 502 } |
483 } | 503 } |
484 | 504 |
485 | 505 |
486 } } // namespace v8::internal | 506 } } // namespace v8::internal |
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