| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "graph_visualizer.h" |
| |
| #include <dlfcn.h> |
| |
| #include <cctype> |
| #include <sstream> |
| |
| #include "android-base/stringprintf.h" |
| #include "art_method.h" |
| #include "base/intrusive_forward_list.h" |
| #include "bounds_check_elimination.h" |
| #include "builder.h" |
| #include "code_generator.h" |
| #include "data_type-inl.h" |
| #include "dead_code_elimination.h" |
| #include "dex/descriptors_names.h" |
| #include "disassembler.h" |
| #include "inliner.h" |
| #include "licm.h" |
| #include "nodes.h" |
| #include "optimization.h" |
| #include "reference_type_propagation.h" |
| #include "register_allocator_linear_scan.h" |
| #include "scoped_thread_state_change-inl.h" |
| #include "ssa_liveness_analysis.h" |
| #include "utils/assembler.h" |
| |
| namespace art { |
| |
| using android::base::StringPrintf; |
| |
| static bool HasWhitespace(const char* str) { |
| DCHECK(str != nullptr); |
| while (str[0] != 0) { |
| if (isspace(str[0])) { |
| return true; |
| } |
| str++; |
| } |
| return false; |
| } |
| |
| class StringList { |
| public: |
| enum Format { |
| kArrayBrackets, |
| kSetBrackets, |
| }; |
| |
| // Create an empty list |
| explicit StringList(Format format = kArrayBrackets) : format_(format), is_empty_(true) {} |
| |
| // Construct StringList from a linked list. List element class T |
| // must provide methods `GetNext` and `Dump`. |
| template<class T> |
| explicit StringList(T* first_entry, Format format = kArrayBrackets) : StringList(format) { |
| for (T* current = first_entry; current != nullptr; current = current->GetNext()) { |
| current->Dump(NewEntryStream()); |
| } |
| } |
| // Construct StringList from a list of elements. The value type must provide method `Dump`. |
| template <typename Container> |
| explicit StringList(const Container& list, Format format = kArrayBrackets) : StringList(format) { |
| for (const typename Container::value_type& current : list) { |
| current.Dump(NewEntryStream()); |
| } |
| } |
| |
| std::ostream& NewEntryStream() { |
| if (is_empty_) { |
| is_empty_ = false; |
| } else { |
| sstream_ << ","; |
| } |
| return sstream_; |
| } |
| |
| private: |
| Format format_; |
| bool is_empty_; |
| std::ostringstream sstream_; |
| |
| friend std::ostream& operator<<(std::ostream& os, const StringList& list); |
| }; |
| |
| std::ostream& operator<<(std::ostream& os, const StringList& list) { |
| switch (list.format_) { |
| case StringList::kArrayBrackets: return os << "[" << list.sstream_.str() << "]"; |
| case StringList::kSetBrackets: return os << "{" << list.sstream_.str() << "}"; |
| default: |
| LOG(FATAL) << "Invalid StringList format"; |
| UNREACHABLE(); |
| } |
| } |
| |
| using create_disasm_prototype = Disassembler*(InstructionSet, DisassemblerOptions*); |
| class HGraphVisualizerDisassembler { |
| public: |
| HGraphVisualizerDisassembler(InstructionSet instruction_set, |
| const uint8_t* base_address, |
| const uint8_t* end_address) |
| : instruction_set_(instruction_set), disassembler_(nullptr) { |
| constexpr const char* libart_disassembler_so_name = |
| kIsDebugBuild ? "libartd-disassembler.so" : "libart-disassembler.so"; |
| libart_disassembler_handle_ = dlopen(libart_disassembler_so_name, RTLD_NOW); |
| if (libart_disassembler_handle_ == nullptr) { |
| LOG(ERROR) << "Failed to dlopen " << libart_disassembler_so_name << ": " << dlerror(); |
| return; |
| } |
| constexpr const char* create_disassembler_symbol = "create_disassembler"; |
| create_disasm_prototype* create_disassembler = reinterpret_cast<create_disasm_prototype*>( |
| dlsym(libart_disassembler_handle_, create_disassembler_symbol)); |
| if (create_disassembler == nullptr) { |
| LOG(ERROR) << "Could not find " << create_disassembler_symbol << " entry in " |
| << libart_disassembler_so_name << ": " << dlerror(); |
| return; |
| } |
| // Reading the disassembly from 0x0 is easier, so we print relative |
| // addresses. We will only disassemble the code once everything has |
| // been generated, so we can read data in literal pools. |
| disassembler_ = std::unique_ptr<Disassembler>((*create_disassembler)( |
| instruction_set, |
| new DisassemblerOptions(/* absolute_addresses= */ false, |
| base_address, |
| end_address, |
| /* can_read_literals= */ true, |
| Is64BitInstructionSet(instruction_set) |
| ? &Thread::DumpThreadOffset<PointerSize::k64> |
| : &Thread::DumpThreadOffset<PointerSize::k32>))); |
| } |
| |
| ~HGraphVisualizerDisassembler() { |
| // We need to call ~Disassembler() before we close the library. |
| disassembler_.reset(); |
| if (libart_disassembler_handle_ != nullptr) { |
| dlclose(libart_disassembler_handle_); |
| } |
| } |
| |
| void Disassemble(std::ostream& output, size_t start, size_t end) const { |
| if (disassembler_ == nullptr) { |
| return; |
| } |
| |
| const uint8_t* base = disassembler_->GetDisassemblerOptions()->base_address_; |
| if (instruction_set_ == InstructionSet::kThumb2) { |
| // ARM and Thumb-2 use the same disassembler. The bottom bit of the |
| // address is used to distinguish between the two. |
| base += 1; |
| } |
| disassembler_->Dump(output, base + start, base + end); |
| } |
| |
| private: |
| InstructionSet instruction_set_; |
| std::unique_ptr<Disassembler> disassembler_; |
| |
| void* libart_disassembler_handle_; |
| }; |
| |
| |
| /** |
| * HGraph visitor to generate a file suitable for the c1visualizer tool and IRHydra. |
| */ |
| class HGraphVisualizerPrinter : public HGraphDelegateVisitor { |
| public: |
| HGraphVisualizerPrinter(HGraph* graph, |
| std::ostream& output, |
| const char* pass_name, |
| bool is_after_pass, |
| bool graph_in_bad_state, |
| const CodeGenerator& codegen, |
| const DisassemblyInformation* disasm_info = nullptr) |
| : HGraphDelegateVisitor(graph), |
| output_(output), |
| pass_name_(pass_name), |
| is_after_pass_(is_after_pass), |
| graph_in_bad_state_(graph_in_bad_state), |
| codegen_(codegen), |
| disasm_info_(disasm_info), |
| disassembler_(disasm_info_ != nullptr |
| ? new HGraphVisualizerDisassembler( |
| codegen_.GetInstructionSet(), |
| codegen_.GetAssembler().CodeBufferBaseAddress(), |
| codegen_.GetAssembler().CodeBufferBaseAddress() |
| + codegen_.GetAssembler().CodeSize()) |
| : nullptr), |
| indent_(0) {} |
| |
| void Flush() { |
| // We use "\n" instead of std::endl to avoid implicit flushing which |
| // generates too many syscalls during debug-GC tests (b/27826765). |
| output_ << std::flush; |
| } |
| |
| void StartTag(const char* name) { |
| AddIndent(); |
| output_ << "begin_" << name << "\n"; |
| indent_++; |
| } |
| |
| void EndTag(const char* name) { |
| indent_--; |
| AddIndent(); |
| output_ << "end_" << name << "\n"; |
| } |
| |
| void PrintProperty(const char* name, const char* property) { |
| AddIndent(); |
| output_ << name << " \"" << property << "\"\n"; |
| } |
| |
| void PrintProperty(const char* name, const char* property, int id) { |
| AddIndent(); |
| output_ << name << " \"" << property << id << "\"\n"; |
| } |
| |
| void PrintEmptyProperty(const char* name) { |
| AddIndent(); |
| output_ << name << "\n"; |
| } |
| |
| void PrintTime(const char* name) { |
| AddIndent(); |
| output_ << name << " " << time(nullptr) << "\n"; |
| } |
| |
| void PrintInt(const char* name, int value) { |
| AddIndent(); |
| output_ << name << " " << value << "\n"; |
| } |
| |
| void AddIndent() { |
| for (size_t i = 0; i < indent_; ++i) { |
| output_ << " "; |
| } |
| } |
| |
| void PrintPredecessors(HBasicBlock* block) { |
| AddIndent(); |
| output_ << "predecessors"; |
| for (HBasicBlock* predecessor : block->GetPredecessors()) { |
| output_ << " \"B" << predecessor->GetBlockId() << "\" "; |
| } |
| if (block->IsEntryBlock() && (disasm_info_ != nullptr)) { |
| output_ << " \"" << kDisassemblyBlockFrameEntry << "\" "; |
| } |
| output_<< "\n"; |
| } |
| |
| void PrintSuccessors(HBasicBlock* block) { |
| AddIndent(); |
| output_ << "successors"; |
| for (HBasicBlock* successor : block->GetNormalSuccessors()) { |
| output_ << " \"B" << successor->GetBlockId() << "\" "; |
| } |
| output_<< "\n"; |
| } |
| |
| void PrintExceptionHandlers(HBasicBlock* block) { |
| AddIndent(); |
| output_ << "xhandlers"; |
| for (HBasicBlock* handler : block->GetExceptionalSuccessors()) { |
| output_ << " \"B" << handler->GetBlockId() << "\" "; |
| } |
| if (block->IsExitBlock() && |
| (disasm_info_ != nullptr) && |
| !disasm_info_->GetSlowPathIntervals().empty()) { |
| output_ << " \"" << kDisassemblyBlockSlowPaths << "\" "; |
| } |
| output_<< "\n"; |
| } |
| |
| void DumpLocation(std::ostream& stream, const Location& location) { |
| if (location.IsRegister()) { |
| codegen_.DumpCoreRegister(stream, location.reg()); |
| } else if (location.IsFpuRegister()) { |
| codegen_.DumpFloatingPointRegister(stream, location.reg()); |
| } else if (location.IsConstant()) { |
| stream << "#"; |
| HConstant* constant = location.GetConstant(); |
| if (constant->IsIntConstant()) { |
| stream << constant->AsIntConstant()->GetValue(); |
| } else if (constant->IsLongConstant()) { |
| stream << constant->AsLongConstant()->GetValue(); |
| } else if (constant->IsFloatConstant()) { |
| stream << constant->AsFloatConstant()->GetValue(); |
| } else if (constant->IsDoubleConstant()) { |
| stream << constant->AsDoubleConstant()->GetValue(); |
| } else if (constant->IsNullConstant()) { |
| stream << "null"; |
| } |
| } else if (location.IsInvalid()) { |
| stream << "invalid"; |
| } else if (location.IsStackSlot()) { |
| stream << location.GetStackIndex() << "(sp)"; |
| } else if (location.IsFpuRegisterPair()) { |
| codegen_.DumpFloatingPointRegister(stream, location.low()); |
| stream << "|"; |
| codegen_.DumpFloatingPointRegister(stream, location.high()); |
| } else if (location.IsRegisterPair()) { |
| codegen_.DumpCoreRegister(stream, location.low()); |
| stream << "|"; |
| codegen_.DumpCoreRegister(stream, location.high()); |
| } else if (location.IsUnallocated()) { |
| stream << "unallocated"; |
| } else if (location.IsDoubleStackSlot()) { |
| stream << "2x" << location.GetStackIndex() << "(sp)"; |
| } else { |
| DCHECK(location.IsSIMDStackSlot()); |
| stream << "4x" << location.GetStackIndex() << "(sp)"; |
| } |
| } |
| |
| std::ostream& StartAttributeStream(const char* name = nullptr) { |
| if (name == nullptr) { |
| output_ << " "; |
| } else { |
| DCHECK(!HasWhitespace(name)) << "Checker does not allow spaces in attributes"; |
| output_ << " " << name << ":"; |
| } |
| return output_; |
| } |
| |
| void VisitParallelMove(HParallelMove* instruction) override { |
| StartAttributeStream("liveness") << instruction->GetLifetimePosition(); |
| StringList moves; |
| for (size_t i = 0, e = instruction->NumMoves(); i < e; ++i) { |
| MoveOperands* move = instruction->MoveOperandsAt(i); |
| std::ostream& str = moves.NewEntryStream(); |
| DumpLocation(str, move->GetSource()); |
| str << "->"; |
| DumpLocation(str, move->GetDestination()); |
| } |
| StartAttributeStream("moves") << moves; |
| } |
| |
| void VisitIntConstant(HIntConstant* instruction) override { |
| StartAttributeStream() << instruction->GetValue(); |
| } |
| |
| void VisitLongConstant(HLongConstant* instruction) override { |
| StartAttributeStream() << instruction->GetValue(); |
| } |
| |
| void VisitFloatConstant(HFloatConstant* instruction) override { |
| StartAttributeStream() << instruction->GetValue(); |
| } |
| |
| void VisitDoubleConstant(HDoubleConstant* instruction) override { |
| StartAttributeStream() << instruction->GetValue(); |
| } |
| |
| void VisitPhi(HPhi* phi) override { |
| StartAttributeStream("reg") << phi->GetRegNumber(); |
| StartAttributeStream("is_catch_phi") << std::boolalpha << phi->IsCatchPhi() << std::noboolalpha; |
| } |
| |
| void VisitMemoryBarrier(HMemoryBarrier* barrier) override { |
| StartAttributeStream("kind") << barrier->GetBarrierKind(); |
| } |
| |
| void VisitMonitorOperation(HMonitorOperation* monitor) override { |
| StartAttributeStream("kind") << (monitor->IsEnter() ? "enter" : "exit"); |
| } |
| |
| void VisitLoadClass(HLoadClass* load_class) override { |
| StartAttributeStream("load_kind") << load_class->GetLoadKind(); |
| const char* descriptor = load_class->GetDexFile().GetTypeDescriptor( |
| load_class->GetDexFile().GetTypeId(load_class->GetTypeIndex())); |
| StartAttributeStream("class_name") << PrettyDescriptor(descriptor); |
| StartAttributeStream("gen_clinit_check") << std::boolalpha |
| << load_class->MustGenerateClinitCheck() << std::noboolalpha; |
| StartAttributeStream("needs_access_check") << std::boolalpha |
| << load_class->NeedsAccessCheck() << std::noboolalpha; |
| } |
| |
| void VisitLoadMethodHandle(HLoadMethodHandle* load_method_handle) override { |
| StartAttributeStream("load_kind") << "RuntimeCall"; |
| StartAttributeStream("method_handle_index") << load_method_handle->GetMethodHandleIndex(); |
| } |
| |
| void VisitLoadMethodType(HLoadMethodType* load_method_type) override { |
| StartAttributeStream("load_kind") << "RuntimeCall"; |
| const DexFile& dex_file = load_method_type->GetDexFile(); |
| const dex::ProtoId& proto_id = dex_file.GetProtoId(load_method_type->GetProtoIndex()); |
| StartAttributeStream("method_type") << dex_file.GetProtoSignature(proto_id); |
| } |
| |
| void VisitLoadString(HLoadString* load_string) override { |
| StartAttributeStream("load_kind") << load_string->GetLoadKind(); |
| } |
| |
| void HandleTypeCheckInstruction(HTypeCheckInstruction* check) { |
| StartAttributeStream("check_kind") << check->GetTypeCheckKind(); |
| StartAttributeStream("must_do_null_check") << std::boolalpha |
| << check->MustDoNullCheck() << std::noboolalpha; |
| if (check->GetTypeCheckKind() == TypeCheckKind::kBitstringCheck) { |
| StartAttributeStream("path_to_root") << std::hex |
| << "0x" << check->GetBitstringPathToRoot() << std::dec; |
| StartAttributeStream("mask") << std::hex << "0x" << check->GetBitstringMask() << std::dec; |
| } |
| } |
| |
| void VisitCheckCast(HCheckCast* check_cast) override { |
| HandleTypeCheckInstruction(check_cast); |
| } |
| |
| void VisitInstanceOf(HInstanceOf* instance_of) override { |
| HandleTypeCheckInstruction(instance_of); |
| } |
| |
| void VisitArrayLength(HArrayLength* array_length) override { |
| StartAttributeStream("is_string_length") << std::boolalpha |
| << array_length->IsStringLength() << std::noboolalpha; |
| if (array_length->IsEmittedAtUseSite()) { |
| StartAttributeStream("emitted_at_use") << "true"; |
| } |
| } |
| |
| void VisitBoundsCheck(HBoundsCheck* bounds_check) override { |
| StartAttributeStream("is_string_char_at") << std::boolalpha |
| << bounds_check->IsStringCharAt() << std::noboolalpha; |
| } |
| |
| void VisitArrayGet(HArrayGet* array_get) override { |
| StartAttributeStream("is_string_char_at") << std::boolalpha |
| << array_get->IsStringCharAt() << std::noboolalpha; |
| } |
| |
| void VisitArraySet(HArraySet* array_set) override { |
| StartAttributeStream("value_can_be_null") << std::boolalpha |
| << array_set->GetValueCanBeNull() << std::noboolalpha; |
| StartAttributeStream("needs_type_check") << std::boolalpha |
| << array_set->NeedsTypeCheck() << std::noboolalpha; |
| } |
| |
| void VisitCompare(HCompare* compare) override { |
| StartAttributeStream("bias") << compare->GetBias(); |
| } |
| |
| void VisitInvoke(HInvoke* invoke) override { |
| StartAttributeStream("dex_file_index") << invoke->GetDexMethodIndex(); |
| ArtMethod* method = invoke->GetResolvedMethod(); |
| // We don't print signatures, which conflict with c1visualizer format. |
| static constexpr bool kWithSignature = false; |
| // Note that we can only use the graph's dex file for the unresolved case. The |
| // other invokes might be coming from inlined methods. |
| ScopedObjectAccess soa(Thread::Current()); |
| std::string method_name = (method == nullptr) |
| ? GetGraph()->GetDexFile().PrettyMethod(invoke->GetDexMethodIndex(), kWithSignature) |
| : method->PrettyMethod(kWithSignature); |
| StartAttributeStream("method_name") << method_name; |
| StartAttributeStream("always_throws") << std::boolalpha |
| << invoke->AlwaysThrows() |
| << std::noboolalpha; |
| } |
| |
| void VisitInvokeUnresolved(HInvokeUnresolved* invoke) override { |
| VisitInvoke(invoke); |
| StartAttributeStream("invoke_type") << invoke->GetInvokeType(); |
| } |
| |
| void VisitInvokeStaticOrDirect(HInvokeStaticOrDirect* invoke) override { |
| VisitInvoke(invoke); |
| StartAttributeStream("method_load_kind") << invoke->GetMethodLoadKind(); |
| StartAttributeStream("intrinsic") << invoke->GetIntrinsic(); |
| if (invoke->IsStatic()) { |
| StartAttributeStream("clinit_check") << invoke->GetClinitCheckRequirement(); |
| } |
| } |
| |
| void VisitInvokeVirtual(HInvokeVirtual* invoke) override { |
| VisitInvoke(invoke); |
| StartAttributeStream("intrinsic") << invoke->GetIntrinsic(); |
| } |
| |
| void VisitInvokePolymorphic(HInvokePolymorphic* invoke) override { |
| VisitInvoke(invoke); |
| StartAttributeStream("invoke_type") << "InvokePolymorphic"; |
| } |
| |
| void VisitInstanceFieldGet(HInstanceFieldGet* iget) override { |
| StartAttributeStream("field_name") << |
| iget->GetFieldInfo().GetDexFile().PrettyField(iget->GetFieldInfo().GetFieldIndex(), |
| /* with type */ false); |
| StartAttributeStream("field_type") << iget->GetFieldType(); |
| } |
| |
| void VisitInstanceFieldSet(HInstanceFieldSet* iset) override { |
| StartAttributeStream("field_name") << |
| iset->GetFieldInfo().GetDexFile().PrettyField(iset->GetFieldInfo().GetFieldIndex(), |
| /* with type */ false); |
| StartAttributeStream("field_type") << iset->GetFieldType(); |
| } |
| |
| void VisitStaticFieldGet(HStaticFieldGet* sget) override { |
| StartAttributeStream("field_name") << |
| sget->GetFieldInfo().GetDexFile().PrettyField(sget->GetFieldInfo().GetFieldIndex(), |
| /* with type */ false); |
| StartAttributeStream("field_type") << sget->GetFieldType(); |
| } |
| |
| void VisitStaticFieldSet(HStaticFieldSet* sset) override { |
| StartAttributeStream("field_name") << |
| sset->GetFieldInfo().GetDexFile().PrettyField(sset->GetFieldInfo().GetFieldIndex(), |
| /* with type */ false); |
| StartAttributeStream("field_type") << sset->GetFieldType(); |
| } |
| |
| void VisitUnresolvedInstanceFieldGet(HUnresolvedInstanceFieldGet* field_access) override { |
| StartAttributeStream("field_type") << field_access->GetFieldType(); |
| } |
| |
| void VisitUnresolvedInstanceFieldSet(HUnresolvedInstanceFieldSet* field_access) override { |
| StartAttributeStream("field_type") << field_access->GetFieldType(); |
| } |
| |
| void VisitUnresolvedStaticFieldGet(HUnresolvedStaticFieldGet* field_access) override { |
| StartAttributeStream("field_type") << field_access->GetFieldType(); |
| } |
| |
| void VisitUnresolvedStaticFieldSet(HUnresolvedStaticFieldSet* field_access) override { |
| StartAttributeStream("field_type") << field_access->GetFieldType(); |
| } |
| |
| void VisitTryBoundary(HTryBoundary* try_boundary) override { |
| StartAttributeStream("kind") << (try_boundary->IsEntry() ? "entry" : "exit"); |
| } |
| |
| void VisitDeoptimize(HDeoptimize* deoptimize) override { |
| StartAttributeStream("kind") << deoptimize->GetKind(); |
| } |
| |
| void VisitVecOperation(HVecOperation* vec_operation) override { |
| StartAttributeStream("packed_type") << vec_operation->GetPackedType(); |
| } |
| |
| void VisitVecMemoryOperation(HVecMemoryOperation* vec_mem_operation) override { |
| StartAttributeStream("alignment") << vec_mem_operation->GetAlignment().ToString(); |
| } |
| |
| void VisitVecHalvingAdd(HVecHalvingAdd* hadd) override { |
| VisitVecBinaryOperation(hadd); |
| StartAttributeStream("rounded") << std::boolalpha << hadd->IsRounded() << std::noboolalpha; |
| } |
| |
| void VisitVecMultiplyAccumulate(HVecMultiplyAccumulate* instruction) override { |
| VisitVecOperation(instruction); |
| StartAttributeStream("kind") << instruction->GetOpKind(); |
| } |
| |
| void VisitVecDotProd(HVecDotProd* instruction) override { |
| VisitVecOperation(instruction); |
| DataType::Type arg_type = instruction->InputAt(1)->AsVecOperation()->GetPackedType(); |
| StartAttributeStream("type") << (instruction->IsZeroExtending() ? |
| DataType::ToUnsigned(arg_type) : |
| DataType::ToSigned(arg_type)); |
| } |
| |
| #if defined(ART_ENABLE_CODEGEN_arm) || defined(ART_ENABLE_CODEGEN_arm64) |
| void VisitMultiplyAccumulate(HMultiplyAccumulate* instruction) override { |
| StartAttributeStream("kind") << instruction->GetOpKind(); |
| } |
| |
| void VisitBitwiseNegatedRight(HBitwiseNegatedRight* instruction) override { |
| StartAttributeStream("kind") << instruction->GetOpKind(); |
| } |
| |
| void VisitDataProcWithShifterOp(HDataProcWithShifterOp* instruction) override { |
| StartAttributeStream("kind") << instruction->GetInstrKind() << "+" << instruction->GetOpKind(); |
| if (HDataProcWithShifterOp::IsShiftOp(instruction->GetOpKind())) { |
| StartAttributeStream("shift") << instruction->GetShiftAmount(); |
| } |
| } |
| #endif |
| |
| bool IsPass(const char* name) { |
| return strcmp(pass_name_, name) == 0; |
| } |
| |
| void PrintInstruction(HInstruction* instruction) { |
| output_ << instruction->DebugName(); |
| HConstInputsRef inputs = instruction->GetInputs(); |
| if (!inputs.empty()) { |
| StringList input_list; |
| for (const HInstruction* input : inputs) { |
| input_list.NewEntryStream() << DataType::TypeId(input->GetType()) << input->GetId(); |
| } |
| StartAttributeStream() << input_list; |
| } |
| if (instruction->GetDexPc() != kNoDexPc) { |
| StartAttributeStream("dex_pc") << instruction->GetDexPc(); |
| } else { |
| StartAttributeStream("dex_pc") << "n/a"; |
| } |
| instruction->Accept(this); |
| if (instruction->HasEnvironment()) { |
| StringList envs; |
| for (HEnvironment* environment = instruction->GetEnvironment(); |
| environment != nullptr; |
| environment = environment->GetParent()) { |
| StringList vregs; |
| for (size_t i = 0, e = environment->Size(); i < e; ++i) { |
| HInstruction* insn = environment->GetInstructionAt(i); |
| if (insn != nullptr) { |
| vregs.NewEntryStream() << DataType::TypeId(insn->GetType()) << insn->GetId(); |
| } else { |
| vregs.NewEntryStream() << "_"; |
| } |
| } |
| envs.NewEntryStream() << vregs; |
| } |
| StartAttributeStream("env") << envs; |
| } |
| if (IsPass(SsaLivenessAnalysis::kLivenessPassName) |
| && is_after_pass_ |
| && instruction->GetLifetimePosition() != kNoLifetime) { |
| StartAttributeStream("liveness") << instruction->GetLifetimePosition(); |
| if (instruction->HasLiveInterval()) { |
| LiveInterval* interval = instruction->GetLiveInterval(); |
| StartAttributeStream("ranges") |
| << StringList(interval->GetFirstRange(), StringList::kSetBrackets); |
| StartAttributeStream("uses") << StringList(interval->GetUses()); |
| StartAttributeStream("env_uses") << StringList(interval->GetEnvironmentUses()); |
| StartAttributeStream("is_fixed") << interval->IsFixed(); |
| StartAttributeStream("is_split") << interval->IsSplit(); |
| StartAttributeStream("is_low") << interval->IsLowInterval(); |
| StartAttributeStream("is_high") << interval->IsHighInterval(); |
| } |
| } |
| |
| if (IsPass(RegisterAllocator::kRegisterAllocatorPassName) && is_after_pass_) { |
| StartAttributeStream("liveness") << instruction->GetLifetimePosition(); |
| LocationSummary* locations = instruction->GetLocations(); |
| if (locations != nullptr) { |
| StringList input_list; |
| for (size_t i = 0, e = locations->GetInputCount(); i < e; ++i) { |
| DumpLocation(input_list.NewEntryStream(), locations->InAt(i)); |
| } |
| std::ostream& attr = StartAttributeStream("locations"); |
| attr << input_list << "->"; |
| DumpLocation(attr, locations->Out()); |
| } |
| } |
| |
| HLoopInformation* loop_info = instruction->GetBlock()->GetLoopInformation(); |
| if (loop_info == nullptr) { |
| StartAttributeStream("loop") << "none"; |
| } else { |
| StartAttributeStream("loop") << "B" << loop_info->GetHeader()->GetBlockId(); |
| HLoopInformation* outer = loop_info->GetPreHeader()->GetLoopInformation(); |
| if (outer != nullptr) { |
| StartAttributeStream("outer_loop") << "B" << outer->GetHeader()->GetBlockId(); |
| } else { |
| StartAttributeStream("outer_loop") << "none"; |
| } |
| StartAttributeStream("irreducible") |
| << std::boolalpha << loop_info->IsIrreducible() << std::noboolalpha; |
| } |
| |
| // For the builder and the inliner, we want to add extra information on HInstructions |
| // that have reference types, and also HInstanceOf/HCheckcast. |
| if ((IsPass(HGraphBuilder::kBuilderPassName) |
| || IsPass(HInliner::kInlinerPassName)) |
| && (instruction->GetType() == DataType::Type::kReference || |
| instruction->IsInstanceOf() || |
| instruction->IsCheckCast())) { |
| ReferenceTypeInfo info = (instruction->GetType() == DataType::Type::kReference) |
| ? instruction->IsLoadClass() |
| ? instruction->AsLoadClass()->GetLoadedClassRTI() |
| : instruction->GetReferenceTypeInfo() |
| : instruction->IsInstanceOf() |
| ? instruction->AsInstanceOf()->GetTargetClassRTI() |
| : instruction->AsCheckCast()->GetTargetClassRTI(); |
| ScopedObjectAccess soa(Thread::Current()); |
| if (info.IsValid()) { |
| StartAttributeStream("klass") |
| << mirror::Class::PrettyDescriptor(info.GetTypeHandle().Get()); |
| if (instruction->GetType() == DataType::Type::kReference) { |
| StartAttributeStream("can_be_null") |
| << std::boolalpha << instruction->CanBeNull() << std::noboolalpha; |
| } |
| StartAttributeStream("exact") << std::boolalpha << info.IsExact() << std::noboolalpha; |
| } else if (instruction->IsLoadClass() || |
| instruction->IsInstanceOf() || |
| instruction->IsCheckCast()) { |
| StartAttributeStream("klass") << "unresolved"; |
| } else { |
| // The NullConstant may be added to the graph during other passes that happen between |
| // ReferenceTypePropagation and Inliner (e.g. InstructionSimplifier). If the inliner |
| // doesn't run or doesn't inline anything, the NullConstant remains untyped. |
| // So we should check NullConstants for validity only after reference type propagation. |
| DCHECK(graph_in_bad_state_ || |
| (!is_after_pass_ && IsPass(HGraphBuilder::kBuilderPassName))) |
| << instruction->DebugName() << instruction->GetId() << " has invalid rti " |
| << (is_after_pass_ ? "after" : "before") << " pass " << pass_name_; |
| } |
| } |
| if (disasm_info_ != nullptr) { |
| DCHECK(disassembler_ != nullptr); |
| // If the information is available, disassemble the code generated for |
| // this instruction. |
| auto it = disasm_info_->GetInstructionIntervals().find(instruction); |
| if (it != disasm_info_->GetInstructionIntervals().end() |
| && it->second.start != it->second.end) { |
| output_ << "\n"; |
| disassembler_->Disassemble(output_, it->second.start, it->second.end); |
| } |
| } |
| } |
| |
| void PrintInstructions(const HInstructionList& list) { |
| for (HInstructionIterator it(list); !it.Done(); it.Advance()) { |
| HInstruction* instruction = it.Current(); |
| int bci = 0; |
| size_t num_uses = instruction->GetUses().SizeSlow(); |
| AddIndent(); |
| output_ << bci << " " << num_uses << " " |
| << DataType::TypeId(instruction->GetType()) << instruction->GetId() << " "; |
| PrintInstruction(instruction); |
| output_ << " " << kEndInstructionMarker << "\n"; |
| } |
| } |
| |
| void DumpStartOfDisassemblyBlock(const char* block_name, |
| int predecessor_index, |
| int successor_index) { |
| StartTag("block"); |
| PrintProperty("name", block_name); |
| PrintInt("from_bci", -1); |
| PrintInt("to_bci", -1); |
| if (predecessor_index != -1) { |
| PrintProperty("predecessors", "B", predecessor_index); |
| } else { |
| PrintEmptyProperty("predecessors"); |
| } |
| if (successor_index != -1) { |
| PrintProperty("successors", "B", successor_index); |
| } else { |
| PrintEmptyProperty("successors"); |
| } |
| PrintEmptyProperty("xhandlers"); |
| PrintEmptyProperty("flags"); |
| StartTag("states"); |
| StartTag("locals"); |
| PrintInt("size", 0); |
| PrintProperty("method", "None"); |
| EndTag("locals"); |
| EndTag("states"); |
| StartTag("HIR"); |
| } |
| |
| void DumpEndOfDisassemblyBlock() { |
| EndTag("HIR"); |
| EndTag("block"); |
| } |
| |
| void DumpDisassemblyBlockForFrameEntry() { |
| DumpStartOfDisassemblyBlock(kDisassemblyBlockFrameEntry, |
| -1, |
| GetGraph()->GetEntryBlock()->GetBlockId()); |
| output_ << " 0 0 disasm " << kDisassemblyBlockFrameEntry << " "; |
| GeneratedCodeInterval frame_entry = disasm_info_->GetFrameEntryInterval(); |
| if (frame_entry.start != frame_entry.end) { |
| output_ << "\n"; |
| disassembler_->Disassemble(output_, frame_entry.start, frame_entry.end); |
| } |
| output_ << kEndInstructionMarker << "\n"; |
| DumpEndOfDisassemblyBlock(); |
| } |
| |
| void DumpDisassemblyBlockForSlowPaths() { |
| if (disasm_info_->GetSlowPathIntervals().empty()) { |
| return; |
| } |
| // If the graph has an exit block we attach the block for the slow paths |
| // after it. Else we just add the block to the graph without linking it to |
| // any other. |
| DumpStartOfDisassemblyBlock( |
| kDisassemblyBlockSlowPaths, |
| GetGraph()->HasExitBlock() ? GetGraph()->GetExitBlock()->GetBlockId() : -1, |
| -1); |
| for (SlowPathCodeInfo info : disasm_info_->GetSlowPathIntervals()) { |
| output_ << " 0 0 disasm " << info.slow_path->GetDescription() << "\n"; |
| disassembler_->Disassemble(output_, info.code_interval.start, info.code_interval.end); |
| output_ << kEndInstructionMarker << "\n"; |
| } |
| DumpEndOfDisassemblyBlock(); |
| } |
| |
| void Run() { |
| StartTag("cfg"); |
| std::string pass_desc = std::string(pass_name_) |
| + " (" |
| + (is_after_pass_ ? "after" : "before") |
| + (graph_in_bad_state_ ? ", bad_state" : "") |
| + ")"; |
| PrintProperty("name", pass_desc.c_str()); |
| if (disasm_info_ != nullptr) { |
| DumpDisassemblyBlockForFrameEntry(); |
| } |
| VisitInsertionOrder(); |
| if (disasm_info_ != nullptr) { |
| DumpDisassemblyBlockForSlowPaths(); |
| } |
| EndTag("cfg"); |
| Flush(); |
| } |
| |
| void VisitBasicBlock(HBasicBlock* block) override { |
| StartTag("block"); |
| PrintProperty("name", "B", block->GetBlockId()); |
| if (block->GetLifetimeStart() != kNoLifetime) { |
| // Piggy back on these fields to show the lifetime of the block. |
| PrintInt("from_bci", block->GetLifetimeStart()); |
| PrintInt("to_bci", block->GetLifetimeEnd()); |
| } else { |
| PrintInt("from_bci", -1); |
| PrintInt("to_bci", -1); |
| } |
| PrintPredecessors(block); |
| PrintSuccessors(block); |
| PrintExceptionHandlers(block); |
| |
| if (block->IsCatchBlock()) { |
| PrintProperty("flags", "catch_block"); |
| } else { |
| PrintEmptyProperty("flags"); |
| } |
| |
| if (block->GetDominator() != nullptr) { |
| PrintProperty("dominator", "B", block->GetDominator()->GetBlockId()); |
| } |
| |
| StartTag("states"); |
| StartTag("locals"); |
| PrintInt("size", 0); |
| PrintProperty("method", "None"); |
| for (HInstructionIterator it(block->GetPhis()); !it.Done(); it.Advance()) { |
| AddIndent(); |
| HInstruction* instruction = it.Current(); |
| output_ << instruction->GetId() << " " << DataType::TypeId(instruction->GetType()) |
| << instruction->GetId() << "[ "; |
| for (const HInstruction* input : instruction->GetInputs()) { |
| output_ << input->GetId() << " "; |
| } |
| output_ << "]\n"; |
| } |
| EndTag("locals"); |
| EndTag("states"); |
| |
| StartTag("HIR"); |
| PrintInstructions(block->GetPhis()); |
| PrintInstructions(block->GetInstructions()); |
| EndTag("HIR"); |
| EndTag("block"); |
| } |
| |
| static constexpr const char* const kEndInstructionMarker = "<|@"; |
| static constexpr const char* const kDisassemblyBlockFrameEntry = "FrameEntry"; |
| static constexpr const char* const kDisassemblyBlockSlowPaths = "SlowPaths"; |
| |
| private: |
| std::ostream& output_; |
| const char* pass_name_; |
| const bool is_after_pass_; |
| const bool graph_in_bad_state_; |
| const CodeGenerator& codegen_; |
| const DisassemblyInformation* disasm_info_; |
| std::unique_ptr<HGraphVisualizerDisassembler> disassembler_; |
| size_t indent_; |
| |
| DISALLOW_COPY_AND_ASSIGN(HGraphVisualizerPrinter); |
| }; |
| |
| HGraphVisualizer::HGraphVisualizer(std::ostream* output, |
| HGraph* graph, |
| const CodeGenerator& codegen) |
| : output_(output), graph_(graph), codegen_(codegen) {} |
| |
| void HGraphVisualizer::PrintHeader(const char* method_name) const { |
| DCHECK(output_ != nullptr); |
| HGraphVisualizerPrinter printer(graph_, *output_, "", true, false, codegen_); |
| printer.StartTag("compilation"); |
| printer.PrintProperty("name", method_name); |
| printer.PrintProperty("method", method_name); |
| printer.PrintTime("date"); |
| printer.EndTag("compilation"); |
| printer.Flush(); |
| } |
| |
| std::string HGraphVisualizer::InsertMetaDataAsCompilationBlock(const std::string& meta_data) { |
| std::string time_str = std::to_string(time(nullptr)); |
| std::string quoted_meta_data = "\"" + meta_data + "\""; |
| return StringPrintf("begin_compilation\n" |
| " name %s\n" |
| " method %s\n" |
| " date %s\n" |
| "end_compilation\n", |
| quoted_meta_data.c_str(), |
| quoted_meta_data.c_str(), |
| time_str.c_str()); |
| } |
| |
| void HGraphVisualizer::DumpGraph(const char* pass_name, |
| bool is_after_pass, |
| bool graph_in_bad_state) const { |
| DCHECK(output_ != nullptr); |
| if (!graph_->GetBlocks().empty()) { |
| HGraphVisualizerPrinter printer(graph_, |
| *output_, |
| pass_name, |
| is_after_pass, |
| graph_in_bad_state, |
| codegen_); |
| printer.Run(); |
| } |
| } |
| |
| void HGraphVisualizer::DumpGraphWithDisassembly() const { |
| DCHECK(output_ != nullptr); |
| if (!graph_->GetBlocks().empty()) { |
| HGraphVisualizerPrinter printer(graph_, |
| *output_, |
| "disassembly", |
| /* is_after_pass= */ true, |
| /* graph_in_bad_state= */ false, |
| codegen_, |
| codegen_.GetDisassemblyInformation()); |
| printer.Run(); |
| } |
| } |
| |
| } // namespace art |