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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_FLOW_GRAPH_COMPILER_H_ | 5 #ifndef VM_FLOW_GRAPH_COMPILER_H_ |
6 #define VM_FLOW_GRAPH_COMPILER_H_ | 6 #define VM_FLOW_GRAPH_COMPILER_H_ |
7 | 7 |
8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
9 #include "vm/assembler.h" | 9 #include "vm/assembler.h" |
10 #include "vm/code_descriptors.h" | 10 #include "vm/code_descriptors.h" |
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212 | 212 |
213 DISALLOW_COPY_AND_ASSIGN(SlowPathCode); | 213 DISALLOW_COPY_AND_ASSIGN(SlowPathCode); |
214 }; | 214 }; |
215 | 215 |
216 | 216 |
217 class MegamorphicSlowPath : public SlowPathCode { | 217 class MegamorphicSlowPath : public SlowPathCode { |
218 public: | 218 public: |
219 MegamorphicSlowPath(const ICData& ic_data, | 219 MegamorphicSlowPath(const ICData& ic_data, |
220 intptr_t argument_count, | 220 intptr_t argument_count, |
221 intptr_t deopt_id, | 221 intptr_t deopt_id, |
222 intptr_t token_pos, | 222 TokenPosition token_pos, |
223 LocationSummary* locs, | 223 LocationSummary* locs, |
224 intptr_t try_index) | 224 intptr_t try_index) |
225 : SlowPathCode(), | 225 : SlowPathCode(), |
226 ic_data_(ic_data), | 226 ic_data_(ic_data), |
227 argument_count_(argument_count), | 227 argument_count_(argument_count), |
228 deopt_id_(deopt_id), | 228 deopt_id_(deopt_id), |
229 token_pos_(token_pos), | 229 token_pos_(token_pos), |
230 locs_(locs), | 230 locs_(locs), |
231 try_index_(try_index) {} | 231 try_index_(try_index) {} |
232 virtual ~MegamorphicSlowPath() {} | 232 virtual ~MegamorphicSlowPath() {} |
233 | 233 |
234 private: | 234 private: |
235 virtual void EmitNativeCode(FlowGraphCompiler* comp); | 235 virtual void EmitNativeCode(FlowGraphCompiler* comp); |
236 | 236 |
237 const ICData& ic_data_; | 237 const ICData& ic_data_; |
238 intptr_t argument_count_; | 238 intptr_t argument_count_; |
239 intptr_t deopt_id_; | 239 intptr_t deopt_id_; |
240 intptr_t token_pos_; | 240 TokenPosition token_pos_; |
241 LocationSummary* locs_; | 241 LocationSummary* locs_; |
242 const intptr_t try_index_; // For try/catch ranges. | 242 const intptr_t try_index_; // For try/catch ranges. |
243 | 243 |
244 DISALLOW_COPY_AND_ASSIGN(MegamorphicSlowPath); | 244 DISALLOW_COPY_AND_ASSIGN(MegamorphicSlowPath); |
245 }; | 245 }; |
246 | 246 |
247 | 247 |
248 struct CidTarget { | 248 struct CidTarget { |
249 intptr_t cid; | 249 intptr_t cid; |
250 Function* target; | 250 Function* target; |
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358 void CompileGraph(); | 358 void CompileGraph(); |
359 | 359 |
360 void VisitBlocks(); | 360 void VisitBlocks(); |
361 | 361 |
362 // Bail out of the flow graph compiler. Does not return to the caller. | 362 // Bail out of the flow graph compiler. Does not return to the caller. |
363 void Bailout(const char* reason); | 363 void Bailout(const char* reason); |
364 | 364 |
365 // Returns 'true' if regular code generation should be skipped. | 365 // Returns 'true' if regular code generation should be skipped. |
366 bool TryIntrinsify(); | 366 bool TryIntrinsify(); |
367 | 367 |
368 void GenerateRuntimeCall(intptr_t token_pos, | 368 void GenerateRuntimeCall(TokenPosition token_pos, |
369 intptr_t deopt_id, | 369 intptr_t deopt_id, |
370 const RuntimeEntry& entry, | 370 const RuntimeEntry& entry, |
371 intptr_t argument_count, | 371 intptr_t argument_count, |
372 LocationSummary* locs); | 372 LocationSummary* locs); |
373 | 373 |
374 void GenerateCall(intptr_t token_pos, | 374 void GenerateCall(TokenPosition token_pos, |
375 const StubEntry& stub_entry, | 375 const StubEntry& stub_entry, |
376 RawPcDescriptors::Kind kind, | 376 RawPcDescriptors::Kind kind, |
377 LocationSummary* locs); | 377 LocationSummary* locs); |
378 | 378 |
379 void GenerateDartCall(intptr_t deopt_id, | 379 void GenerateDartCall(intptr_t deopt_id, |
380 intptr_t token_pos, | 380 TokenPosition token_pos, |
381 const StubEntry& stub_entry, | 381 const StubEntry& stub_entry, |
382 RawPcDescriptors::Kind kind, | 382 RawPcDescriptors::Kind kind, |
383 LocationSummary* locs); | 383 LocationSummary* locs); |
384 | 384 |
385 void GenerateAssertAssignable(intptr_t token_pos, | 385 void GenerateAssertAssignable(TokenPosition token_pos, |
386 intptr_t deopt_id, | 386 intptr_t deopt_id, |
387 const AbstractType& dst_type, | 387 const AbstractType& dst_type, |
388 const String& dst_name, | 388 const String& dst_name, |
389 LocationSummary* locs); | 389 LocationSummary* locs); |
390 | 390 |
391 void GenerateInstanceOf(intptr_t token_pos, | 391 void GenerateInstanceOf(TokenPosition token_pos, |
392 intptr_t deopt_id, | 392 intptr_t deopt_id, |
393 const AbstractType& type, | 393 const AbstractType& type, |
394 bool negate_result, | 394 bool negate_result, |
395 LocationSummary* locs); | 395 LocationSummary* locs); |
396 | 396 |
397 void GenerateInstanceCall(intptr_t deopt_id, | 397 void GenerateInstanceCall(intptr_t deopt_id, |
398 intptr_t token_pos, | 398 TokenPosition token_pos, |
399 intptr_t argument_count, | 399 intptr_t argument_count, |
400 LocationSummary* locs, | 400 LocationSummary* locs, |
401 const ICData& ic_data); | 401 const ICData& ic_data); |
402 | 402 |
403 void GenerateStaticCall(intptr_t deopt_id, | 403 void GenerateStaticCall(intptr_t deopt_id, |
404 intptr_t token_pos, | 404 TokenPosition token_pos, |
405 const Function& function, | 405 const Function& function, |
406 intptr_t argument_count, | 406 intptr_t argument_count, |
407 const Array& argument_names, | 407 const Array& argument_names, |
408 LocationSummary* locs, | 408 LocationSummary* locs, |
409 const ICData& ic_data); | 409 const ICData& ic_data); |
410 | 410 |
411 void GenerateNumberTypeCheck(Register kClassIdReg, | 411 void GenerateNumberTypeCheck(Register kClassIdReg, |
412 const AbstractType& type, | 412 const AbstractType& type, |
413 Label* is_instance_lbl, | 413 Label* is_instance_lbl, |
414 Label* is_not_instance_lbl); | 414 Label* is_not_instance_lbl); |
415 void GenerateStringTypeCheck(Register kClassIdReg, | 415 void GenerateStringTypeCheck(Register kClassIdReg, |
416 Label* is_instance_lbl, | 416 Label* is_instance_lbl, |
417 Label* is_not_instance_lbl); | 417 Label* is_not_instance_lbl); |
418 void GenerateListTypeCheck(Register kClassIdReg, | 418 void GenerateListTypeCheck(Register kClassIdReg, |
419 Label* is_instance_lbl); | 419 Label* is_instance_lbl); |
420 | 420 |
421 void EmitComment(Instruction* instr); | 421 void EmitComment(Instruction* instr); |
422 | 422 |
423 bool NeedsEdgeCounter(TargetEntryInstr* block); | 423 bool NeedsEdgeCounter(TargetEntryInstr* block); |
424 | 424 |
425 void EmitEdgeCounter(intptr_t edge_id); | 425 void EmitEdgeCounter(intptr_t edge_id); |
426 | 426 |
427 void EmitOptimizedInstanceCall(const StubEntry& stub_entry, | 427 void EmitOptimizedInstanceCall(const StubEntry& stub_entry, |
428 const ICData& ic_data, | 428 const ICData& ic_data, |
429 intptr_t argument_count, | 429 intptr_t argument_count, |
430 intptr_t deopt_id, | 430 intptr_t deopt_id, |
431 intptr_t token_pos, | 431 TokenPosition token_pos, |
432 LocationSummary* locs); | 432 LocationSummary* locs); |
433 | 433 |
434 void EmitInstanceCall(const StubEntry& stub_entry, | 434 void EmitInstanceCall(const StubEntry& stub_entry, |
435 const ICData& ic_data, | 435 const ICData& ic_data, |
436 intptr_t argument_count, | 436 intptr_t argument_count, |
437 intptr_t deopt_id, | 437 intptr_t deopt_id, |
438 intptr_t token_pos, | 438 TokenPosition token_pos, |
439 LocationSummary* locs); | 439 LocationSummary* locs); |
440 | 440 |
441 void EmitPolymorphicInstanceCall(const ICData& ic_data, | 441 void EmitPolymorphicInstanceCall(const ICData& ic_data, |
442 intptr_t argument_count, | 442 intptr_t argument_count, |
443 const Array& argument_names, | 443 const Array& argument_names, |
444 intptr_t deopt_id, | 444 intptr_t deopt_id, |
445 intptr_t token_pos, | 445 TokenPosition token_pos, |
446 LocationSummary* locs); | 446 LocationSummary* locs); |
447 | 447 |
448 // Pass a value for try-index where block is not available (e.g. slow path). | 448 // Pass a value for try-index where block is not available (e.g. slow path). |
449 void EmitMegamorphicInstanceCall( | 449 void EmitMegamorphicInstanceCall( |
450 const ICData& ic_data, | 450 const ICData& ic_data, |
451 intptr_t argument_count, | 451 intptr_t argument_count, |
452 intptr_t deopt_id, | 452 intptr_t deopt_id, |
453 intptr_t token_pos, | 453 TokenPosition token_pos, |
454 LocationSummary* locs, | 454 LocationSummary* locs, |
455 intptr_t try_index = CatchClauseNode::kInvalidTryIndex); | 455 intptr_t try_index = CatchClauseNode::kInvalidTryIndex); |
456 | 456 |
457 void EmitSwitchableInstanceCall(const ICData& ic_data, | 457 void EmitSwitchableInstanceCall(const ICData& ic_data, |
458 intptr_t argument_count, | 458 intptr_t argument_count, |
459 intptr_t deopt_id, | 459 intptr_t deopt_id, |
460 intptr_t token_pos, | 460 TokenPosition token_pos, |
461 LocationSummary* locs); | 461 LocationSummary* locs); |
462 | 462 |
463 void EmitTestAndCall(const ICData& ic_data, | 463 void EmitTestAndCall(const ICData& ic_data, |
464 intptr_t arg_count, | 464 intptr_t arg_count, |
465 const Array& arg_names, | 465 const Array& arg_names, |
466 Label* failed, | 466 Label* failed, |
467 Label* match_found, | 467 Label* match_found, |
468 intptr_t deopt_id, | 468 intptr_t deopt_id, |
469 intptr_t token_index, | 469 TokenPosition token_index, |
470 LocationSummary* locs); | 470 LocationSummary* locs); |
471 | 471 |
472 Condition EmitEqualityRegConstCompare(Register reg, | 472 Condition EmitEqualityRegConstCompare(Register reg, |
473 const Object& obj, | 473 const Object& obj, |
474 bool needs_number_check, | 474 bool needs_number_check, |
475 intptr_t token_pos); | 475 TokenPosition token_pos); |
476 Condition EmitEqualityRegRegCompare(Register left, | 476 Condition EmitEqualityRegRegCompare(Register left, |
477 Register right, | 477 Register right, |
478 bool needs_number_check, | 478 bool needs_number_check, |
479 intptr_t token_pos); | 479 TokenPosition token_pos); |
480 | 480 |
481 void EmitTrySync(Instruction* instr, intptr_t try_index); | 481 void EmitTrySync(Instruction* instr, intptr_t try_index); |
482 | 482 |
483 intptr_t StackSize() const; | 483 intptr_t StackSize() const; |
484 | 484 |
485 // Returns assembler label associated with the given block entry. | 485 // Returns assembler label associated with the given block entry. |
486 Label* GetJumpLabel(BlockEntryInstr* block_entry) const; | 486 Label* GetJumpLabel(BlockEntryInstr* block_entry) const; |
487 bool WasCompacted(BlockEntryInstr* block_entry) const; | 487 bool WasCompacted(BlockEntryInstr* block_entry) const; |
488 | 488 |
489 // Returns the label of the fall-through of the current block. | 489 // Returns the label of the fall-through of the current block. |
490 Label* NextNonEmptyLabel() const; | 490 Label* NextNonEmptyLabel() const; |
491 | 491 |
492 // Returns true if there is a next block after the current one in | 492 // Returns true if there is a next block after the current one in |
493 // the block order and if it is the given block. | 493 // the block order and if it is the given block. |
494 bool CanFallThroughTo(BlockEntryInstr* block_entry) const; | 494 bool CanFallThroughTo(BlockEntryInstr* block_entry) const; |
495 | 495 |
496 // Return true-, false- and fall-through label for a branch instruction. | 496 // Return true-, false- and fall-through label for a branch instruction. |
497 BranchLabels CreateBranchLabels(BranchInstr* branch) const; | 497 BranchLabels CreateBranchLabels(BranchInstr* branch) const; |
498 | 498 |
499 void AddExceptionHandler(intptr_t try_index, | 499 void AddExceptionHandler(intptr_t try_index, |
500 intptr_t outer_try_index, | 500 intptr_t outer_try_index, |
501 intptr_t pc_offset, | 501 intptr_t pc_offset, |
502 const Array& handler_types, | 502 const Array& handler_types, |
503 bool needs_stacktrace); | 503 bool needs_stacktrace); |
504 void SetNeedsStacktrace(intptr_t try_index); | 504 void SetNeedsStacktrace(intptr_t try_index); |
505 void AddCurrentDescriptor(RawPcDescriptors::Kind kind, | 505 void AddCurrentDescriptor(RawPcDescriptors::Kind kind, |
506 intptr_t deopt_id, | 506 intptr_t deopt_id, |
507 intptr_t token_pos); | 507 TokenPosition token_pos); |
508 | 508 |
509 void RecordSafepoint(LocationSummary* locs); | 509 void RecordSafepoint(LocationSummary* locs); |
510 | 510 |
511 Label* AddDeoptStub(intptr_t deopt_id, | 511 Label* AddDeoptStub(intptr_t deopt_id, |
512 ICData::DeoptReasonId reason, | 512 ICData::DeoptReasonId reason, |
513 uint32_t flags = 0); | 513 uint32_t flags = 0); |
514 | 514 |
515 void AddDeoptIndexAtCall(intptr_t deopt_id, intptr_t token_pos); | 515 void AddDeoptIndexAtCall(intptr_t deopt_id, TokenPosition token_pos); |
516 | 516 |
517 void AddSlowPathCode(SlowPathCode* slow_path); | 517 void AddSlowPathCode(SlowPathCode* slow_path); |
518 | 518 |
519 void FinalizeExceptionHandlers(const Code& code); | 519 void FinalizeExceptionHandlers(const Code& code); |
520 void FinalizePcDescriptors(const Code& code); | 520 void FinalizePcDescriptors(const Code& code); |
521 RawArray* CreateDeoptInfo(Assembler* assembler); | 521 RawArray* CreateDeoptInfo(Assembler* assembler); |
522 void FinalizeStackmaps(const Code& code); | 522 void FinalizeStackmaps(const Code& code); |
523 void FinalizeVarDescriptors(const Code& code); | 523 void FinalizeVarDescriptors(const Code& code); |
524 void FinalizeStaticCallTargetsTable(const Code& code); | 524 void FinalizeStaticCallTargetsTable(const Code& code); |
525 | 525 |
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598 void EmitInstructionPrologue(Instruction* instr); | 598 void EmitInstructionPrologue(Instruction* instr); |
599 void EmitInstructionEpilogue(Instruction* instr); | 599 void EmitInstructionEpilogue(Instruction* instr); |
600 | 600 |
601 // Emit code to load a Value into register 'dst'. | 601 // Emit code to load a Value into register 'dst'. |
602 void LoadValue(Register dst, Value* value); | 602 void LoadValue(Register dst, Value* value); |
603 | 603 |
604 void EmitOptimizedStaticCall(const Function& function, | 604 void EmitOptimizedStaticCall(const Function& function, |
605 const Array& arguments_descriptor, | 605 const Array& arguments_descriptor, |
606 intptr_t argument_count, | 606 intptr_t argument_count, |
607 intptr_t deopt_id, | 607 intptr_t deopt_id, |
608 intptr_t token_pos, | 608 TokenPosition token_pos, |
609 LocationSummary* locs); | 609 LocationSummary* locs); |
610 | 610 |
611 void EmitUnoptimizedStaticCall(intptr_t argument_count, | 611 void EmitUnoptimizedStaticCall(intptr_t argument_count, |
612 intptr_t deopt_id, | 612 intptr_t deopt_id, |
613 intptr_t token_pos, | 613 TokenPosition token_pos, |
614 LocationSummary* locs, | 614 LocationSummary* locs, |
615 const ICData& ic_data); | 615 const ICData& ic_data); |
616 | 616 |
617 // Type checking helper methods. | 617 // Type checking helper methods. |
618 void CheckClassIds(Register class_id_reg, | 618 void CheckClassIds(Register class_id_reg, |
619 const GrowableArray<intptr_t>& class_ids, | 619 const GrowableArray<intptr_t>& class_ids, |
620 Label* is_instance_lbl, | 620 Label* is_instance_lbl, |
621 Label* is_not_instance_lbl); | 621 Label* is_not_instance_lbl); |
622 | 622 |
623 RawSubtypeTestCache* GenerateInlineInstanceof(intptr_t token_pos, | 623 RawSubtypeTestCache* GenerateInlineInstanceof(TokenPosition token_pos, |
624 const AbstractType& type, | 624 const AbstractType& type, |
625 Label* is_instance_lbl, | 625 Label* is_instance_lbl, |
626 Label* is_not_instance_lbl); | 626 Label* is_not_instance_lbl); |
627 | 627 |
628 RawSubtypeTestCache* GenerateInstantiatedTypeWithArgumentsTest( | 628 RawSubtypeTestCache* GenerateInstantiatedTypeWithArgumentsTest( |
629 intptr_t token_pos, | 629 TokenPosition token_pos, |
630 const AbstractType& dst_type, | 630 const AbstractType& dst_type, |
631 Label* is_instance_lbl, | 631 Label* is_instance_lbl, |
632 Label* is_not_instance_lbl); | 632 Label* is_not_instance_lbl); |
633 | 633 |
634 bool GenerateInstantiatedTypeNoArgumentsTest(intptr_t token_pos, | 634 bool GenerateInstantiatedTypeNoArgumentsTest(TokenPosition token_pos, |
635 const AbstractType& dst_type, | 635 const AbstractType& dst_type, |
636 Label* is_instance_lbl, | 636 Label* is_instance_lbl, |
637 Label* is_not_instance_lbl); | 637 Label* is_not_instance_lbl); |
638 | 638 |
639 RawSubtypeTestCache* GenerateUninstantiatedTypeTest( | 639 RawSubtypeTestCache* GenerateUninstantiatedTypeTest( |
640 intptr_t token_pos, | 640 TokenPosition token_pos, |
641 const AbstractType& dst_type, | 641 const AbstractType& dst_type, |
642 Label* is_instance_lbl, | 642 Label* is_instance_lbl, |
643 Label* is_not_instance_label); | 643 Label* is_not_instance_label); |
644 | 644 |
645 RawSubtypeTestCache* GenerateSubtype1TestCacheLookup( | 645 RawSubtypeTestCache* GenerateSubtype1TestCacheLookup( |
646 intptr_t token_pos, | 646 TokenPosition token_pos, |
647 const Class& type_class, | 647 const Class& type_class, |
648 Label* is_instance_lbl, | 648 Label* is_instance_lbl, |
649 Label* is_not_instance_lbl); | 649 Label* is_not_instance_lbl); |
650 | 650 |
651 enum TypeTestStubKind { | 651 enum TypeTestStubKind { |
652 kTestTypeOneArg, | 652 kTestTypeOneArg, |
653 kTestTypeTwoArgs, | 653 kTestTypeTwoArgs, |
654 kTestTypeThreeArgs, | 654 kTestTypeThreeArgs, |
655 }; | 655 }; |
656 | 656 |
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781 Array& inlined_code_intervals_; | 781 Array& inlined_code_intervals_; |
782 const GrowableArray<const Function*>& inline_id_to_function_; | 782 const GrowableArray<const Function*>& inline_id_to_function_; |
783 const GrowableArray<intptr_t>& caller_inline_id_; | 783 const GrowableArray<intptr_t>& caller_inline_id_; |
784 | 784 |
785 DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler); | 785 DISALLOW_COPY_AND_ASSIGN(FlowGraphCompiler); |
786 }; | 786 }; |
787 | 787 |
788 } // namespace dart | 788 } // namespace dart |
789 | 789 |
790 #endif // VM_FLOW_GRAPH_COMPILER_H_ | 790 #endif // VM_FLOW_GRAPH_COMPILER_H_ |
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