/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_COMPILER_OPTIMIZING_GRAPH_VISUALIZER_H_
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#define ART_COMPILER_OPTIMIZING_GRAPH_VISUALIZER_H_
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#include <ostream>
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#include "arch/instruction_set.h"
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#include "base/arena_containers.h"
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#include "base/value_object.h"
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namespace art {
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class CodeGenerator;
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class DexCompilationUnit;
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class HGraph;
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class HInstruction;
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class SlowPathCode;
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/**
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* This class outputs the HGraph in the C1visualizer format.
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* Note: Currently only works if the compiler is single threaded.
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*/
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struct GeneratedCodeInterval {
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size_t start;
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size_t end;
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};
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struct SlowPathCodeInfo {
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const SlowPathCode* slow_path;
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GeneratedCodeInterval code_interval;
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};
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// This information is filled by the code generator. It will be used by the
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// graph visualizer to associate disassembly of the generated code with the
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// instructions and slow paths. We assume that the generated code follows the
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// following structure:
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// - frame entry
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// - instructions
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// - slow paths
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class DisassemblyInformation {
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public:
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explicit DisassemblyInformation(ArenaAllocator* allocator)
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: frame_entry_interval_({0, 0}),
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instruction_intervals_(std::less<const HInstruction*>(), allocator->Adapter()),
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slow_path_intervals_(allocator->Adapter()) {}
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void SetFrameEntryInterval(size_t start, size_t end) {
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frame_entry_interval_ = {start, end};
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}
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void AddInstructionInterval(HInstruction* instr, size_t start, size_t end) {
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instruction_intervals_.Put(instr, {start, end});
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}
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void AddSlowPathInterval(SlowPathCode* slow_path, size_t start, size_t end) {
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slow_path_intervals_.push_back({slow_path, {start, end}});
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}
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GeneratedCodeInterval GetFrameEntryInterval() const {
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return frame_entry_interval_;
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}
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GeneratedCodeInterval* GetFrameEntryInterval() {
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return &frame_entry_interval_;
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}
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const ArenaSafeMap<const HInstruction*, GeneratedCodeInterval>& GetInstructionIntervals() const {
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return instruction_intervals_;
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}
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ArenaSafeMap<const HInstruction*, GeneratedCodeInterval>* GetInstructionIntervals() {
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return &instruction_intervals_;
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}
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const ArenaVector<SlowPathCodeInfo>& GetSlowPathIntervals() const { return slow_path_intervals_; }
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ArenaVector<SlowPathCodeInfo>* GetSlowPathIntervals() { return &slow_path_intervals_; }
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private:
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GeneratedCodeInterval frame_entry_interval_;
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ArenaSafeMap<const HInstruction*, GeneratedCodeInterval> instruction_intervals_;
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ArenaVector<SlowPathCodeInfo> slow_path_intervals_;
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};
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class HGraphVisualizer : public ValueObject {
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public:
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HGraphVisualizer(std::ostream* output,
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HGraph* graph,
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const CodeGenerator& codegen);
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void PrintHeader(const char* method_name) const;
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void DumpGraph(const char* pass_name, bool is_after_pass, bool graph_in_bad_state) const;
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void DumpGraphWithDisassembly() const;
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private:
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std::ostream* const output_;
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HGraph* const graph_;
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const CodeGenerator& codegen_;
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DISALLOW_COPY_AND_ASSIGN(HGraphVisualizer);
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};
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} // namespace art
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#endif // ART_COMPILER_OPTIMIZING_GRAPH_VISUALIZER_H_
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