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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COMPILER_H_ | 5 #ifndef V8_COMPILER_H_ |
6 #define V8_COMPILER_H_ | 6 #define V8_COMPILER_H_ |
7 | 7 |
8 #include "src/allocation.h" | 8 #include "src/allocation.h" |
9 #include "src/ast/ast.h" | 9 #include "src/ast/ast.h" |
10 #include "src/bailout-reason.h" | 10 #include "src/bailout-reason.h" |
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307 bool IsStub() const { return mode_ == STUB; } | 307 bool IsStub() const { return mode_ == STUB; } |
308 void SetOptimizing(BailoutId osr_ast_id, Handle<Code> unoptimized) { | 308 void SetOptimizing(BailoutId osr_ast_id, Handle<Code> unoptimized) { |
309 DCHECK(has_shared_info()); | 309 DCHECK(has_shared_info()); |
310 SetMode(OPTIMIZE); | 310 SetMode(OPTIMIZE); |
311 osr_ast_id_ = osr_ast_id; | 311 osr_ast_id_ = osr_ast_id; |
312 unoptimized_code_ = unoptimized; | 312 unoptimized_code_ = unoptimized; |
313 optimization_id_ = isolate()->NextOptimizationId(); | 313 optimization_id_ = isolate()->NextOptimizationId(); |
314 set_output_code_kind(Code::OPTIMIZED_FUNCTION); | 314 set_output_code_kind(Code::OPTIMIZED_FUNCTION); |
315 } | 315 } |
316 | 316 |
317 void SetFunctionType(Type::FunctionType* function_type) { | |
318 function_type_ = function_type; | |
319 } | |
320 Type::FunctionType* function_type() const { return function_type_; } | |
321 | |
322 void SetStub(CodeStub* code_stub); | |
323 | |
324 // Deoptimization support. | 317 // Deoptimization support. |
325 bool HasDeoptimizationSupport() const { | 318 bool HasDeoptimizationSupport() const { |
326 return GetFlag(kDeoptimizationSupport); | 319 return GetFlag(kDeoptimizationSupport); |
327 } | 320 } |
328 void EnableDeoptimizationSupport() { | 321 void EnableDeoptimizationSupport() { |
329 DCHECK_EQ(BASE, mode_); | 322 DCHECK_EQ(BASE, mode_); |
330 SetFlag(kDeoptimizationSupport); | 323 SetFlag(kDeoptimizationSupport); |
331 } | 324 } |
332 bool ShouldEnsureSpaceForLazyDeopt() { return !IsStub(); } | 325 bool ShouldEnsureSpaceForLazyDeopt() { return !IsStub(); } |
333 | 326 |
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518 // Number of parameters used for compilation of stubs that require arguments. | 511 // Number of parameters used for compilation of stubs that require arguments. |
519 int parameter_count_; | 512 int parameter_count_; |
520 | 513 |
521 int optimization_id_; | 514 int optimization_id_; |
522 | 515 |
523 int osr_expr_stack_height_; | 516 int osr_expr_stack_height_; |
524 | 517 |
525 // The current OSR frame for specialization or {nullptr}. | 518 // The current OSR frame for specialization or {nullptr}. |
526 JavaScriptFrame* osr_frame_ = nullptr; | 519 JavaScriptFrame* osr_frame_ = nullptr; |
527 | 520 |
528 Type::FunctionType* function_type_; | |
529 | |
530 const char* debug_name_; | 521 const char* debug_name_; |
531 | 522 |
532 DISALLOW_COPY_AND_ASSIGN(CompilationInfo); | 523 DISALLOW_COPY_AND_ASSIGN(CompilationInfo); |
533 }; | 524 }; |
534 | 525 |
535 | 526 |
536 // A wrapper around a CompilationInfo that detaches the Handles from | 527 // A wrapper around a CompilationInfo that detaches the Handles from |
537 // the underlying DeferredHandleScope and stores them in info_ on | 528 // the underlying DeferredHandleScope and stores them in info_ on |
538 // destruction. | 529 // destruction. |
539 class CompilationHandleScope BASE_EMBEDDED { | 530 class CompilationHandleScope BASE_EMBEDDED { |
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644 // Please note this interface returns shared function infos. This means you | 635 // Please note this interface returns shared function infos. This means you |
645 // need to call Factory::NewFunctionFromSharedFunctionInfo before you have a | 636 // need to call Factory::NewFunctionFromSharedFunctionInfo before you have a |
646 // real function with a context. | 637 // real function with a context. |
647 | 638 |
648 class Compiler : public AllStatic { | 639 class Compiler : public AllStatic { |
649 public: | 640 public: |
650 MUST_USE_RESULT static MaybeHandle<Code> GetUnoptimizedCode( | 641 MUST_USE_RESULT static MaybeHandle<Code> GetUnoptimizedCode( |
651 Handle<JSFunction> function); | 642 Handle<JSFunction> function); |
652 MUST_USE_RESULT static MaybeHandle<Code> GetLazyCode( | 643 MUST_USE_RESULT static MaybeHandle<Code> GetLazyCode( |
653 Handle<JSFunction> function); | 644 Handle<JSFunction> function); |
654 MUST_USE_RESULT static MaybeHandle<Code> GetStubCode( | |
655 Handle<JSFunction> function, CodeStub* stub); | |
656 | 645 |
657 static bool Compile(Handle<JSFunction> function, ClearExceptionFlag flag); | 646 static bool Compile(Handle<JSFunction> function, ClearExceptionFlag flag); |
658 static bool CompileDebugCode(Handle<JSFunction> function); | 647 static bool CompileDebugCode(Handle<JSFunction> function); |
659 static bool CompileDebugCode(Handle<SharedFunctionInfo> shared); | 648 static bool CompileDebugCode(Handle<SharedFunctionInfo> shared); |
660 static void CompileForLiveEdit(Handle<Script> script); | 649 static void CompileForLiveEdit(Handle<Script> script); |
661 | 650 |
662 // Parser::Parse, then Compiler::Analyze. | 651 // Parser::Parse, then Compiler::Analyze. |
663 static bool ParseAndAnalyze(ParseInfo* info); | 652 static bool ParseAndAnalyze(ParseInfo* info); |
664 // Rewrite, analyze scopes, and renumber. | 653 // Rewrite, analyze scopes, and renumber. |
665 static bool Analyze(ParseInfo* info); | 654 static bool Analyze(ParseInfo* info); |
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727 size_t info_zone_start_allocation_size_; | 716 size_t info_zone_start_allocation_size_; |
728 base::ElapsedTimer timer_; | 717 base::ElapsedTimer timer_; |
729 | 718 |
730 DISALLOW_COPY_AND_ASSIGN(CompilationPhase); | 719 DISALLOW_COPY_AND_ASSIGN(CompilationPhase); |
731 }; | 720 }; |
732 | 721 |
733 } // namespace internal | 722 } // namespace internal |
734 } // namespace v8 | 723 } // namespace v8 |
735 | 724 |
736 #endif // V8_COMPILER_H_ | 725 #endif // V8_COMPILER_H_ |
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