| //===-- xray-graph-diff.h - XRay Graph Diff Renderer ------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // Generate a DOT file to represent the difference between the function call |
| // graph of two differnent traces. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef XRAY_GRAPH_DIFF_H |
| #define XRAY_GRAPH_DIFF_H |
| |
| #include "xray-graph.h" |
| #include "llvm/ADT/StringMap.h" |
| #include "llvm/XRay/Graph.h" |
| |
| namespace llvm { |
| namespace xray { |
| |
| // This class creates a graph representing the difference between two |
| // xray-graphs And allows you to print it to a dot file, with optional color |
| // coding. |
| class GraphDiffRenderer { |
| static const int N = 2; |
| |
| public: |
| using StatType = GraphRenderer::StatType; |
| using TimeStat = GraphRenderer::TimeStat; |
| |
| using GREdgeValueType = GraphRenderer::GraphT::EdgeValueType; |
| using GRVertexValueType = GraphRenderer::GraphT::VertexValueType; |
| |
| struct EdgeAttribute { |
| std::array<const GREdgeValueType *, N> CorrEdgePtr = {}; |
| }; |
| |
| struct VertexAttribute { |
| std::array<const GRVertexValueType *, N> CorrVertexPtr = {}; |
| }; |
| |
| using GraphT = Graph<VertexAttribute, EdgeAttribute, StringRef>; |
| |
| class Factory { |
| std::array<std::reference_wrapper<const GraphRenderer::GraphT>, N> G; |
| |
| public: |
| template <typename... Ts> Factory(Ts &... Args) : G{{Args...}} {} |
| |
| Expected<GraphDiffRenderer> getGraphDiffRenderer(); |
| }; |
| |
| private: |
| GraphT G; |
| |
| GraphDiffRenderer() = default; |
| |
| public: |
| void exportGraphAsDOT(raw_ostream &OS, StatType EdgeLabel = StatType::NONE, |
| StatType EdgeColor = StatType::NONE, |
| StatType VertexLabel = StatType::NONE, |
| StatType VertexColor = StatType::NONE, |
| int TruncLen = 40); |
| |
| const GraphT &getGraph() { return G; } |
| }; |
| } // namespace xray |
| } // namespace llvm |
| |
| #endif |