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Issue 10878047: Revert to code state of 3.13.1 plus r12350 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
Patch Set: Created 8 years, 4 months ago
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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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99 node->set_next(data->deoptimizing_code_list_); 99 node->set_next(data->deoptimizing_code_list_);
100 data->deoptimizing_code_list_ = node; 100 data->deoptimizing_code_list_ = node;
101 101
102 // We might be in the middle of incremental marking with compaction. 102 // We might be in the middle of incremental marking with compaction.
103 // Tell collector to treat this code object in a special way and 103 // Tell collector to treat this code object in a special way and
104 // ignore all slots that might have been recorded on it. 104 // ignore all slots that might have been recorded on it.
105 isolate->heap()->mark_compact_collector()->InvalidateCode(code); 105 isolate->heap()->mark_compact_collector()->InvalidateCode(code);
106 106
107 // Iterate over all the functions which share the same code object 107 // Iterate over all the functions which share the same code object
108 // and make them use unoptimized version. 108 // and make them use unoptimized version.
109 Context* context = function->context()->native_context(); 109 Context* context = function->context()->global_context();
110 Object* element = context->get(Context::OPTIMIZED_FUNCTIONS_LIST); 110 Object* element = context->get(Context::OPTIMIZED_FUNCTIONS_LIST);
111 SharedFunctionInfo* shared = function->shared(); 111 SharedFunctionInfo* shared = function->shared();
112 while (!element->IsUndefined()) { 112 while (!element->IsUndefined()) {
113 JSFunction* func = JSFunction::cast(element); 113 JSFunction* func = JSFunction::cast(element);
114 // Grab element before code replacement as ReplaceCode alters the list. 114 // Grab element before code replacement as ReplaceCode alters the list.
115 element = func->next_function_link(); 115 element = func->next_function_link();
116 if (func->code() == code) { 116 if (func->code() == code) {
117 func->ReplaceCode(shared->code()); 117 func->ReplaceCode(shared->code());
118 } 118 }
119 } 119 }
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584 584
585 ASSERT(0 == output_offset); 585 ASSERT(0 == output_offset);
586 586
587 intptr_t pc = reinterpret_cast<intptr_t>( 587 intptr_t pc = reinterpret_cast<intptr_t>(
588 construct_stub->instruction_start() + 588 construct_stub->instruction_start() +
589 isolate_->heap()->construct_stub_deopt_pc_offset()->value()); 589 isolate_->heap()->construct_stub_deopt_pc_offset()->value());
590 output_frame->SetPc(pc); 590 output_frame->SetPc(pc);
591 } 591 }
592 592
593 593
594 void Deoptimizer::DoComputeSetterStubFrame(TranslationIterator* iterator,
595 int frame_index) {
596 JSFunction* setter = JSFunction::cast(ComputeLiteral(iterator->Next()));
597 // The receiver and the implicit return value are expected in registers by the
598 // StoreIC, so they don't belong to the output stack frame. This means that we
599 // have to use a height of 0.
600 unsigned height = 0;
601 unsigned height_in_bytes = height * kPointerSize;
602 if (FLAG_trace_deopt) {
603 PrintF(" translating setter stub => height=%u\n", height_in_bytes);
604 }
605
606 // We need 1 stack entry for the return address + 4 stack entries from
607 // StackFrame::INTERNAL (FP, context, frame type, code object, see
608 // MacroAssembler::EnterFrame) + 1 stack entry from setter stub (implicit
609 // return value, see StoreStubCompiler::CompileStoreViaSetter).
610 unsigned fixed_frame_size = (1 + 4 + 1) * kPointerSize;
611 unsigned output_frame_size = height_in_bytes + fixed_frame_size;
612
613 // Allocate and store the output frame description.
614 FrameDescription* output_frame =
615 new(output_frame_size) FrameDescription(output_frame_size, setter);
616 output_frame->SetFrameType(StackFrame::INTERNAL);
617
618 // A frame for a setter stub can not be the topmost or bottommost one.
619 ASSERT(frame_index > 0 && frame_index < output_count_ - 1);
620 ASSERT(output_[frame_index] == NULL);
621 output_[frame_index] = output_frame;
622
623 // The top address of the frame is computed from the previous frame's top and
624 // this frame's size.
625 intptr_t top_address = output_[frame_index - 1]->GetTop() - output_frame_size;
626 output_frame->SetTop(top_address);
627
628 unsigned output_offset = output_frame_size;
629
630 // Read caller's PC from the previous frame.
631 output_offset -= kPointerSize;
632 intptr_t callers_pc = output_[frame_index - 1]->GetPc();
633 output_frame->SetFrameSlot(output_offset, callers_pc);
634 if (FLAG_trace_deopt) {
635 PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
636 " ; caller's pc\n",
637 top_address + output_offset, output_offset, callers_pc);
638 }
639
640 // Read caller's FP from the previous frame, and set this frame's FP.
641 output_offset -= kPointerSize;
642 intptr_t value = output_[frame_index - 1]->GetFp();
643 output_frame->SetFrameSlot(output_offset, value);
644 intptr_t fp_value = top_address + output_offset;
645 output_frame->SetFp(fp_value);
646 if (FLAG_trace_deopt) {
647 PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
648 " ; caller's fp\n",
649 fp_value, output_offset, value);
650 }
651
652 // The context can be gotten from the previous frame.
653 output_offset -= kPointerSize;
654 value = output_[frame_index - 1]->GetContext();
655 output_frame->SetFrameSlot(output_offset, value);
656 if (FLAG_trace_deopt) {
657 PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
658 " ; context\n",
659 top_address + output_offset, output_offset, value);
660 }
661
662 // A marker value is used in place of the function.
663 output_offset -= kPointerSize;
664 value = reinterpret_cast<intptr_t>(Smi::FromInt(StackFrame::INTERNAL));
665 output_frame->SetFrameSlot(output_offset, value);
666 if (FLAG_trace_deopt) {
667 PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
668 " ; function (setter sentinel)\n",
669 top_address + output_offset, output_offset, value);
670 }
671
672 // Get Code object from setter stub.
673 output_offset -= kPointerSize;
674 Code* setter_stub =
675 isolate_->builtins()->builtin(Builtins::kStoreIC_Setter_ForDeopt);
676 value = reinterpret_cast<intptr_t>(setter_stub);
677 output_frame->SetFrameSlot(output_offset, value);
678 if (FLAG_trace_deopt) {
679 PrintF(" 0x%08" V8PRIxPTR ": [top + %u] <- 0x%08" V8PRIxPTR
680 " ; code object\n",
681 top_address + output_offset, output_offset, value);
682 }
683
684 // Skip receiver.
685 Translation::Opcode opcode =
686 static_cast<Translation::Opcode>(iterator->Next());
687 iterator->Skip(Translation::NumberOfOperandsFor(opcode));
688
689 // The implicit return value was part of the artificial setter stub
690 // environment.
691 output_offset -= kPointerSize;
692 DoTranslateCommand(iterator, frame_index, output_offset);
693
694 ASSERT(0 == output_offset);
695
696 intptr_t pc = reinterpret_cast<intptr_t>(
697 setter_stub->instruction_start() +
698 isolate_->heap()->setter_stub_deopt_pc_offset()->value());
699 output_frame->SetPc(pc);
700 }
701
702
703 void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator, 594 void Deoptimizer::DoComputeJSFrame(TranslationIterator* iterator,
704 int frame_index) { 595 int frame_index) {
705 BailoutId node_id = BailoutId(iterator->Next()); 596 BailoutId node_id = BailoutId(iterator->Next());
706 JSFunction* function; 597 JSFunction* function;
707 if (frame_index != 0) { 598 if (frame_index != 0) {
708 function = JSFunction::cast(ComputeLiteral(iterator->Next())); 599 function = JSFunction::cast(ComputeLiteral(iterator->Next()));
709 } else { 600 } else {
710 int closure_id = iterator->Next(); 601 int closure_id = iterator->Next();
711 USE(closure_id); 602 USE(closure_id);
712 ASSERT_EQ(Translation::kSelfLiteralId, closure_id); 603 ASSERT_EQ(Translation::kSelfLiteralId, closure_id);
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1107 } 998 }
1108 __ bind(&done); 999 __ bind(&done);
1109 } 1000 }
1110 1001
1111 #undef __ 1002 #undef __
1112 1003
1113 1004
1114 } } // namespace v8::internal 1005 } } // namespace v8::internal
1115 1006
1116 #endif // V8_TARGET_ARCH_X64 1007 #endif // V8_TARGET_ARCH_X64
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