[tubofan] Remove .dot output of --trace-turbo

src/compiler/graph-visualizer.cc

Index: src/compiler/graph-visualizer.cc
diff --git a/src/compiler/graph-visualizer.cc b/src/compiler/graph-visualizer.cc
index 1b0997a6bd899b23164bf0a4167fb39f204887bd..36462e85c8fe08479a3e9cc29c2be72ee4818211 100644
--- a/src/compiler/graph-visualizer.cc
+++ b/src/compiler/graph-visualizer.cc
@@ -207,190 +207,6 @@ std::ostream& operator<<(std::ostream& os, const AsJSON& ad) {
 }
 
 
-class GraphVisualizer {
- public:
-  GraphVisualizer(std::ostream& os, Zone* zone, const Graph* graph)
-      : all_(zone, graph), os_(os) {}
-
-  void Print();
-
-  void PrintNode(Node* node, bool gray);
-
- private:
-  void PrintEdge(Edge edge);
-
-  AllNodes all_;
-  std::ostream& os_;
-
-  DISALLOW_COPY_AND_ASSIGN(GraphVisualizer);
-};
-
-
-static Node* GetControlCluster(Node* node) {
-  if (OperatorProperties::IsBasicBlockBegin(node->op())) {
-    return node;
-  } else if (node->op()->ControlInputCount() == 1) {
-    Node* control = NodeProperties::GetControlInput(node, 0);
-    return control != NULL &&
-                   OperatorProperties::IsBasicBlockBegin(control->op())
-               ? control
-               : NULL;
-  } else {
-    return NULL;
-  }
-}
-
-
-void GraphVisualizer::PrintNode(Node* node, bool gray) {
-  Node* control_cluster = GetControlCluster(node);
-  if (control_cluster != NULL) {
-    os_ << "  subgraph cluster_BasicBlock" << control_cluster->id() << " {\n";
-  }
-  os_ << "  ID" << SafeId(node) << " [\n";
-
-  os_ << "    shape=\"record\"\n";
-  switch (node->opcode()) {
-    case IrOpcode::kEnd:
-    case IrOpcode::kDead:
-    case IrOpcode::kStart:
-      os_ << "    style=\"diagonals\"\n";
-      break;
-    case IrOpcode::kMerge:
-    case IrOpcode::kIfTrue:
-    case IrOpcode::kIfFalse:
-    case IrOpcode::kLoop:
-      os_ << "    style=\"rounded\"\n";
-      break;
-    default:
-      break;
-  }
-
-  if (gray) {
-    os_ << "    style=\"filled\"\n"
-        << "    fillcolor=\"" DEAD_COLOR "\"\n";
-  }
-
-  std::ostringstream label;
-  label << *node->op();
-  os_ << "    label=\"{{#" << SafeId(node) << ":" << Escaped(label);
-
-  auto i = node->input_edges().begin();
-  for (int j = node->op()->ValueInputCount(); j > 0; ++i, j--) {
-    os_ << "|<I" << (*i).index() << ">#" << SafeId((*i).to());
-  }
-  for (int j = OperatorProperties::GetContextInputCount(node->op()); j > 0;
-       ++i, j--) {
-    os_ << "|<I" << (*i).index() << ">X #" << SafeId((*i).to());
-  }
-  for (int j = OperatorProperties::GetFrameStateInputCount(node->op()); j > 0;
-       ++i, j--) {
-    os_ << "|<I" << (*i).index() << ">F #" << SafeId((*i).to());
-  }
-  for (int j = node->op()->EffectInputCount(); j > 0; ++i, j--) {
-    os_ << "|<I" << (*i).index() << ">E #" << SafeId((*i).to());
-  }
-
-  if (OperatorProperties::IsBasicBlockBegin(node->op()) ||
-      GetControlCluster(node) == NULL) {
-    for (int j = node->op()->ControlInputCount(); j > 0; ++i, j--) {
-      os_ << "|<I" << (*i).index() << ">C #" << SafeId((*i).to());
-    }
-  }
-  os_ << "}";
-
-  if (FLAG_trace_turbo_types && NodeProperties::IsTyped(node)) {
-    Type* type = NodeProperties::GetType(node);
-    std::ostringstream type_out;
-    type->PrintTo(type_out);
-    os_ << "|" << Escaped(type_out);
-  }
-  os_ << "}\"\n";
-
-  os_ << "  ]\n";
-  if (control_cluster != NULL) os_ << "  }\n";
-}
-
-
-static bool IsLikelyBackEdge(Node* from, int index, Node* to) {
-  if (NodeProperties::IsPhi(from)) {
-    Node* control = NodeProperties::GetControlInput(from, 0);
-    return control != NULL && control->opcode() != IrOpcode::kMerge &&
-           control != to && index != 0;
-  } else if (from->opcode() == IrOpcode::kLoop) {
-    return index != 0;
-  } else {
-    return false;
-  }
-}
-
-
-void GraphVisualizer::PrintEdge(Edge edge) {
-  Node* from = edge.from();
-  int index = edge.index();
-  Node* to = edge.to();
-
-  if (!all_.IsLive(to)) return;  // skip inputs that point to dead or NULL.
-
-  bool unconstrained = IsLikelyBackEdge(from, index, to);
-  os_ << "  ID" << SafeId(from);
-
-  if (OperatorProperties::IsBasicBlockBegin(from->op()) ||
-      GetControlCluster(from) == NULL ||
-      (from->op()->ControlInputCount() > 0 &&
-       NodeProperties::GetControlInput(from) != to)) {
-    os_ << ":I" << index << ":n -> ID" << SafeId(to) << ":s"
-        << "[" << (unconstrained ? "constraint=false, " : "")
-        << (NodeProperties::IsControlEdge(edge) ? "style=bold, " : "")
-        << (NodeProperties::IsEffectEdge(edge) ? "style=dotted, " : "")
-        << (NodeProperties::IsContextEdge(edge) ? "style=dashed, " : "") << "]";
-  } else {
-    os_ << " -> ID" << SafeId(to) << ":s [color=transparent, "
-        << (unconstrained ? "constraint=false, " : "")
-        << (NodeProperties::IsControlEdge(edge) ? "style=dashed, " : "") << "]";
-  }
-  os_ << "\n";
-}
-
-
-void GraphVisualizer::Print() {
-  os_ << "digraph D {\n"
-      << "  node [fontsize=8,height=0.25]\n"
-      << "  rankdir=\"BT\"\n"
-      << "  ranksep=\"1.2 equally\"\n"
-      << "  overlap=\"false\"\n"
-      << "  splines=\"true\"\n"
-      << "  concentrate=\"true\"\n"
-      << "  \n";
-
-  // Find all nodes that are not reachable from end that use live nodes.
-  std::set<Node*> gray;
-  for (Node* const node : all_.live) {
-    for (Node* const use : node->uses()) {
-      if (!all_.IsLive(use)) gray.insert(use);
-    }
-  }
-
-  // Make sure all nodes have been output before writing out the edges.
-  for (Node* const node : all_.live) PrintNode(node, false);
-  for (Node* const node : gray) PrintNode(node, true);
-
-  // With all the nodes written, add the edges.
-  for (Node* const node : all_.live) {
-    for (Edge edge : node->use_edges()) {
-      PrintEdge(edge);
-    }
-  }
-  os_ << "}\n";
-}
-
-
-std::ostream& operator<<(std::ostream& os, const AsDOT& ad) {
-  Zone tmp_zone;
-  GraphVisualizer(os, &tmp_zone, &ad.graph).Print();
-  return os;
-}
-
-
 class GraphC1Visualizer {
  public:
   GraphC1Visualizer(std::ostream& os, Zone* zone);  // NOLINT