Merge "Update prebuilt Clang to r353983." into p9.0HEADp9.0-backupp9.0

1 files changed, 166 insertions, 0 deletions

diff --git a/clang-r353983/include/llvm/Support/DOTGraphTraits.h b/clang-r353983/include/llvm/Support/DOTGraphTraits.h
new file mode 100644
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+++ b/clang-r353983/include/llvm/Support/DOTGraphTraits.h
@@ -0,0 +1,166 @@
+//===-- llvm/Support/DOTGraphTraits.h - Customize .dot output ---*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a template class that can be used to customize dot output
+// graphs generated by the GraphWriter.h file.  The default implementation of
+// this file will produce a simple, but not very polished graph.  By
+// specializing this template, lots of customization opportunities are possible.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_DOTGRAPHTRAITS_H
+#define LLVM_SUPPORT_DOTGRAPHTRAITS_H
+
+#include <string>
+
+namespace llvm {
+
+/// DefaultDOTGraphTraits - This class provides the default implementations of
+/// all of the DOTGraphTraits methods.  If a specialization does not need to
+/// override all methods here it should inherit so that it can get the default
+/// implementations.
+///
+struct DefaultDOTGraphTraits {
+private:
+  bool IsSimple;
+
+protected:
+  bool isSimple() {
+    return IsSimple;
+  }
+
+public:
+  explicit DefaultDOTGraphTraits(bool simple=false) : IsSimple (simple) {}
+
+  /// getGraphName - Return the label for the graph as a whole.  Printed at the
+  /// top of the graph.
+  ///
+  template<typename GraphType>
+  static std::string getGraphName(const GraphType &) { return ""; }
+
+  /// getGraphProperties - Return any custom properties that should be included
+  /// in the top level graph structure for dot.
+  ///
+  template<typename GraphType>
+  static std::string getGraphProperties(const GraphType &) {
+    return "";
+  }
+
+  /// renderGraphFromBottomUp - If this function returns true, the graph is
+  /// emitted bottom-up instead of top-down.  This requires graphviz 2.0 to work
+  /// though.
+  static bool renderGraphFromBottomUp() {
+    return false;
+  }
+
+  /// isNodeHidden - If the function returns true, the given node is not
+  /// displayed in the graph.
+  static bool isNodeHidden(const void *) {
+    return false;
+  }
+
+  /// getNodeLabel - Given a node and a pointer to the top level graph, return
+  /// the label to print in the node.
+  template<typename GraphType>
+  std::string getNodeLabel(const void *, const GraphType &) {
+    return "";
+  }
+
+  // getNodeIdentifierLabel - Returns a string representing the
+  // address or other unique identifier of the node. (Only used if
+  // non-empty.)
+  template <typename GraphType>
+  static std::string getNodeIdentifierLabel(const void *, const GraphType &) {
+    return "";
+  }
+
+  template<typename GraphType>
+  static std::string getNodeDescription(const void *, const GraphType &) {
+    return "";
+  }
+
+  /// If you want to specify custom node attributes, this is the place to do so
+  ///
+  template<typename GraphType>
+  static std::string getNodeAttributes(const void *,
+                                       const GraphType &) {
+    return "";
+  }
+
+  /// If you want to override the dot attributes printed for a particular edge,
+  /// override this method.
+  template<typename EdgeIter, typename GraphType>
+  static std::string getEdgeAttributes(const void *, EdgeIter,
+                                       const GraphType &) {
+    return "";
+  }
+
+  /// getEdgeSourceLabel - If you want to label the edge source itself,
+  /// implement this method.
+  template<typename EdgeIter>
+  static std::string getEdgeSourceLabel(const void *, EdgeIter) {
+    return "";
+  }
+
+  /// edgeTargetsEdgeSource - This method returns true if this outgoing edge
+  /// should actually target another edge source, not a node.  If this method is
+  /// implemented, getEdgeTarget should be implemented.
+  template<typename EdgeIter>
+  static bool edgeTargetsEdgeSource(const void *, EdgeIter) {
+    return false;
+  }
+
+  /// getEdgeTarget - If edgeTargetsEdgeSource returns true, this method is
+  /// called to determine which outgoing edge of Node is the target of this
+  /// edge.
+  template<typename EdgeIter>
+  static EdgeIter getEdgeTarget(const void *, EdgeIter I) {
+    return I;
+  }
+
+  /// hasEdgeDestLabels - If this function returns true, the graph is able
+  /// to provide labels for edge destinations.
+  static bool hasEdgeDestLabels() {
+    return false;
+  }
+
+  /// numEdgeDestLabels - If hasEdgeDestLabels, this function returns the
+  /// number of incoming edge labels the given node has.
+  static unsigned numEdgeDestLabels(const void *) {
+    return 0;
+  }
+
+  /// getEdgeDestLabel - If hasEdgeDestLabels, this function returns the
+  /// incoming edge label with the given index in the given node.
+  static std::string getEdgeDestLabel(const void *, unsigned) {
+    return "";
+  }
+
+  /// addCustomGraphFeatures - If a graph is made up of more than just
+  /// straight-forward nodes and edges, this is the place to put all of the
+  /// custom stuff necessary.  The GraphWriter object, instantiated with your
+  /// GraphType is passed in as an argument.  You may call arbitrary methods on
+  /// it to add things to the output graph.
+  ///
+  template<typename GraphType, typename GraphWriter>
+  static void addCustomGraphFeatures(const GraphType &, GraphWriter &) {}
+};
+
+
+/// DOTGraphTraits - Template class that can be specialized to customize how
+/// graphs are converted to 'dot' graphs.  When specializing, you may inherit
+/// from DefaultDOTGraphTraits if you don't need to override everything.
+///
+template <typename Ty>
+struct DOTGraphTraits : public DefaultDOTGraphTraits {
+  DOTGraphTraits (bool simple=false) : DefaultDOTGraphTraits (simple) {}
+};
+
+} // End llvm namespace
+
+#endif