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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 696 if (code_->kind() == Code::FUNCTION) PrintF(" NON-OPT"); | 696 if (code_->kind() == Code::FUNCTION) PrintF(" NON-OPT"); |
| 697 if (code_->kind() == Code::OPTIMIZED_FUNCTION) PrintF(" OPT"); | 697 if (code_->kind() == Code::OPTIMIZED_FUNCTION) PrintF(" OPT"); |
| 698 PrintF("\npc: %d\n", offset_); | 698 PrintF("\npc: %d\n", offset_); |
| 699 } | 699 } |
| 700 | 700 |
| 701 | 701 |
| 702 void OptimizedFrame::Summarize(List<FrameSummary>* frames) { | 702 void OptimizedFrame::Summarize(List<FrameSummary>* frames) { |
| 703 ASSERT(frames->length() == 0); | 703 ASSERT(frames->length() == 0); |
| 704 ASSERT(is_optimized()); | 704 ASSERT(is_optimized()); |
| 705 | 705 |
| 706 int deopt_index = AstNode::kNoNumber; | 706 int deopt_index = Safepoint::kNoDeoptimizationIndex; |
| 707 DeoptimizationInputData* data = GetDeoptimizationData(&deopt_index); | 707 DeoptimizationInputData* data = GetDeoptimizationData(&deopt_index); |
| 708 | 708 |
| 709 // BUG(3243555): Since we don't have a lazy-deopt registered at | 709 // BUG(3243555): Since we don't have a lazy-deopt registered at |
| 710 // throw-statements, we can't use the translation at the call-site of | 710 // throw-statements, we can't use the translation at the call-site of |
| 711 // throw. An entry with no deoptimization index indicates a call-site | 711 // throw. An entry with no deoptimization index indicates a call-site |
| 712 // without a lazy-deopt. As a consequence we are not allowed to inline | 712 // without a lazy-deopt. As a consequence we are not allowed to inline |
| 713 // functions containing throw. | 713 // functions containing throw. |
| 714 if (deopt_index == Safepoint::kNoDeoptimizationIndex) { | 714 if (deopt_index == Safepoint::kNoDeoptimizationIndex) { |
| 715 JavaScriptFrame::Summarize(frames); | 715 JavaScriptFrame::Summarize(frames); |
| 716 return; | 716 return; |
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| 794 // back to a slow search in this case to find the original optimized | 794 // back to a slow search in this case to find the original optimized |
| 795 // code object. | 795 // code object. |
| 796 if (!code->contains(pc())) { | 796 if (!code->contains(pc())) { |
| 797 code = Isolate::Current()->pc_to_code_cache()->GcSafeFindCodeForPc(pc()); | 797 code = Isolate::Current()->pc_to_code_cache()->GcSafeFindCodeForPc(pc()); |
| 798 } | 798 } |
| 799 ASSERT(code != NULL); | 799 ASSERT(code != NULL); |
| 800 ASSERT(code->kind() == Code::OPTIMIZED_FUNCTION); | 800 ASSERT(code->kind() == Code::OPTIMIZED_FUNCTION); |
| 801 | 801 |
| 802 SafepointEntry safepoint_entry = code->GetSafepointEntry(pc()); | 802 SafepointEntry safepoint_entry = code->GetSafepointEntry(pc()); |
| 803 *deopt_index = safepoint_entry.deoptimization_index(); | 803 *deopt_index = safepoint_entry.deoptimization_index(); |
| 804 ASSERT(*deopt_index != AstNode::kNoNumber); | 804 ASSERT(*deopt_index != Safepoint::kNoDeoptimizationIndex); |
| 805 | 805 |
| 806 return DeoptimizationInputData::cast(code->deoptimization_data()); | 806 return DeoptimizationInputData::cast(code->deoptimization_data()); |
| 807 } | 807 } |
| 808 | 808 |
| 809 | 809 |
| 810 void OptimizedFrame::GetFunctions(List<JSFunction*>* functions) { | 810 void OptimizedFrame::GetFunctions(List<JSFunction*>* functions) { |
| 811 ASSERT(functions->length() == 0); | 811 ASSERT(functions->length() == 0); |
| 812 ASSERT(is_optimized()); | 812 ASSERT(is_optimized()); |
| 813 | 813 |
| 814 int deopt_index = AstNode::kNoNumber; | 814 int deopt_index = Safepoint::kNoDeoptimizationIndex; |
| 815 DeoptimizationInputData* data = GetDeoptimizationData(&deopt_index); | 815 DeoptimizationInputData* data = GetDeoptimizationData(&deopt_index); |
| 816 | 816 |
| 817 TranslationIterator it(data->TranslationByteArray(), | 817 TranslationIterator it(data->TranslationByteArray(), |
| 818 data->TranslationIndex(deopt_index)->value()); | 818 data->TranslationIndex(deopt_index)->value()); |
| 819 Translation::Opcode opcode = static_cast<Translation::Opcode>(it.Next()); | 819 Translation::Opcode opcode = static_cast<Translation::Opcode>(it.Next()); |
| 820 ASSERT(opcode == Translation::BEGIN); | 820 ASSERT(opcode == Translation::BEGIN); |
| 821 int frame_count = it.Next(); | 821 int frame_count = it.Next(); |
| 822 | 822 |
| 823 // We insert the frames in reverse order because the frames | 823 // We insert the frames in reverse order because the frames |
| 824 // in the deoptimization translation are ordered bottom-to-top. | 824 // in the deoptimization translation are ordered bottom-to-top. |
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| 1238 ZoneList<StackFrame*> list(10); | 1238 ZoneList<StackFrame*> list(10); |
| 1239 for (StackFrameIterator it; !it.done(); it.Advance()) { | 1239 for (StackFrameIterator it; !it.done(); it.Advance()) { |
| 1240 StackFrame* frame = AllocateFrameCopy(it.frame()); | 1240 StackFrame* frame = AllocateFrameCopy(it.frame()); |
| 1241 list.Add(frame); | 1241 list.Add(frame); |
| 1242 } | 1242 } |
| 1243 return list.ToVector(); | 1243 return list.ToVector(); |
| 1244 } | 1244 } |
| 1245 | 1245 |
| 1246 | 1246 |
| 1247 } } // namespace v8::internal | 1247 } } // namespace v8::internal |
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