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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 // 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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558 output_frame->SetPc(pc); | 558 output_frame->SetPc(pc); |
559 } | 559 } |
560 | 560 |
561 | 561 |
562 void Deoptimizer::DoCompiledStubFrame(TranslationIterator* iterator, | 562 void Deoptimizer::DoCompiledStubFrame(TranslationIterator* iterator, |
563 int frame_index) { | 563 int frame_index) { |
564 // | 564 // |
565 // FROM TO <-ebp | 565 // FROM TO <-ebp |
566 // | .... | | .... | | 566 // | .... | | .... | |
567 // +-------------------------+ +-------------------------+ | 567 // +-------------------------+ +-------------------------+ |
568 // | JSFunction continuation | | JSFunction continuation | | 568 // | JSFunction continuation | | parameter 1 | |
| 569 // +-------------------------+ +-------------------------+ |
| 570 // | | saved frame (ebp) | | .... | |
| 571 // | +=========================+<-ebp +-------------------------+ |
| 572 // | | JSFunction context | | parameter n | |
| 573 // v +-------------------------+ +-------------------------| |
| 574 // | COMPILED_STUB marker | | JSFunction continuation | |
569 // +-------------------------+ +-------------------------+<-esp | 575 // +-------------------------+ +-------------------------+<-esp |
570 // | | saved frame (ebp) | | 576 // | | eax = number of parameters |
571 // | +=========================+<-ebp | 577 // | ... | ebx = failure handler address |
572 // | | JSFunction context | | 578 // | | ebp = saved frame |
573 // v +-------------------------+ | 579 // +-------------------------+<-esp esi = JSFunction context |
574 // | COMPILED_STUB marker | ebp = saved frame | |
575 // +-------------------------+ esi = JSFunction context | |
576 // | | | |
577 // | ... | | |
578 // | | | |
579 // +-------------------------+<-esp | |
580 // | 580 // |
581 // | 581 // |
582 int output_frame_size = 1 * kPointerSize; | |
583 FrameDescription* output_frame = | |
584 new(output_frame_size) FrameDescription(output_frame_size, 0); | |
585 Code* notify_miss = | |
586 isolate_->builtins()->builtin(Builtins::kNotifyICMiss); | |
587 output_frame->SetState(Smi::FromInt(FullCodeGenerator::NO_REGISTERS)); | |
588 output_frame->SetContinuation( | |
589 reinterpret_cast<uint32_t>(notify_miss->entry())); | |
590 | 582 |
591 ASSERT(compiled_code_->kind() == Code::COMPILED_STUB); | 583 ASSERT(compiled_code_->kind() == Code::COMPILED_STUB); |
592 int major_key = compiled_code_->major_key(); | 584 int major_key = compiled_code_->major_key(); |
593 CodeStubInterfaceDescriptor* descriptor = | 585 CodeStubInterfaceDescriptor* descriptor = |
594 isolate_->code_stub_interface_descriptor(major_key); | 586 isolate_->code_stub_interface_descriptor(major_key); |
595 Handle<Code> miss_ic(descriptor->deoptimization_handler_); | 587 |
596 output_frame->SetPc(reinterpret_cast<intptr_t>(miss_ic->instruction_start())); | 588 int output_frame_size = |
| 589 (1 + descriptor->register_param_count_) * kPointerSize; |
| 590 FrameDescription* output_frame = |
| 591 new(output_frame_size) FrameDescription(output_frame_size, 0); |
| 592 Code* notify_failure = |
| 593 isolate_->builtins()->builtin(Builtins::kNotifyStubFailure); |
| 594 output_frame->SetState(Smi::FromInt(FullCodeGenerator::NO_REGISTERS)); |
| 595 output_frame->SetContinuation( |
| 596 reinterpret_cast<uint32_t>(notify_failure->entry())); |
| 597 |
| 598 Code* code; |
| 599 CEntryStub(1, kSaveFPRegs).FindCodeInCache(&code, isolate_); |
| 600 output_frame->SetPc(reinterpret_cast<intptr_t>(code->instruction_start())); |
597 unsigned input_frame_size = input_->GetFrameSize(); | 601 unsigned input_frame_size = input_->GetFrameSize(); |
598 intptr_t value = input_->GetFrameSlot(input_frame_size - kPointerSize); | 602 intptr_t value = input_->GetFrameSlot(input_frame_size - kPointerSize); |
599 output_frame->SetFrameSlot(0, value); | 603 output_frame->SetFrameSlot(0, value); |
600 value = input_->GetFrameSlot(input_frame_size - 2 * kPointerSize); | 604 value = input_->GetFrameSlot(input_frame_size - 2 * kPointerSize); |
601 output_frame->SetRegister(ebp.code(), value); | 605 output_frame->SetRegister(ebp.code(), value); |
602 output_frame->SetFp(value); | 606 output_frame->SetFp(value); |
603 value = input_->GetFrameSlot(input_frame_size - 3 * kPointerSize); | 607 value = input_->GetFrameSlot(input_frame_size - 3 * kPointerSize); |
604 output_frame->SetRegister(esi.code(), value); | 608 output_frame->SetRegister(esi.code(), value); |
605 | 609 |
606 Translation::Opcode opcode = | 610 int parameter_offset = kPointerSize * descriptor->register_param_count_; |
607 static_cast<Translation::Opcode>(iterator->Next()); | 611 for (int i = 0; i < descriptor->register_param_count_; ++i) { |
608 ASSERT(opcode == Translation::REGISTER); | 612 Translation::Opcode opcode = |
609 USE(opcode); | 613 static_cast<Translation::Opcode>(iterator->Next()); |
610 int input_reg = iterator->Next(); | 614 ASSERT(opcode == Translation::REGISTER); |
611 intptr_t input_value = input_->GetRegister(input_reg); | 615 USE(opcode); |
612 output_frame->SetRegister(edx.code(), input_value); | 616 int input_reg = iterator->Next(); |
| 617 intptr_t reg_value = input_->GetRegister(input_reg); |
| 618 output_frame->SetFrameSlot(parameter_offset, reg_value); |
| 619 parameter_offset -= kPointerSize; |
| 620 } |
613 | 621 |
614 int32_t next = iterator->Next(); | 622 intptr_t handler = |
615 opcode = static_cast<Translation::Opcode>(next); | 623 reinterpret_cast<intptr_t>(descriptor->deoptimization_handler_); |
616 ASSERT(opcode == Translation::REGISTER); | 624 output_frame->SetRegister(eax.code(), descriptor->register_param_count_); |
617 input_reg = iterator->Next(); | 625 output_frame->SetRegister(ebx.code(), handler); |
618 input_value = input_->GetRegister(input_reg); | |
619 output_frame->SetRegister(ecx.code(), input_value); | |
620 | 626 |
621 ASSERT(frame_index == 0); | 627 ASSERT(frame_index == 0); |
622 output_[frame_index] = output_frame; | 628 output_[frame_index] = output_frame; |
623 } | 629 } |
624 | 630 |
625 | 631 |
626 void Deoptimizer::DoComputeConstructStubFrame(TranslationIterator* iterator, | 632 void Deoptimizer::DoComputeConstructStubFrame(TranslationIterator* iterator, |
627 int frame_index) { | 633 int frame_index) { |
628 Builtins* builtins = isolate_->builtins(); | 634 Builtins* builtins = isolate_->builtins(); |
629 Code* construct_stub = builtins->builtin(Builtins::kJSConstructStubGeneric); | 635 Code* construct_stub = builtins->builtin(Builtins::kJSConstructStubGeneric); |
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1272 } | 1278 } |
1273 __ bind(&done); | 1279 __ bind(&done); |
1274 } | 1280 } |
1275 | 1281 |
1276 #undef __ | 1282 #undef __ |
1277 | 1283 |
1278 | 1284 |
1279 } } // namespace v8::internal | 1285 } } // namespace v8::internal |
1280 | 1286 |
1281 #endif // V8_TARGET_ARCH_IA32 | 1287 #endif // V8_TARGET_ARCH_IA32 |
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