[PATCH] D32145: [Dominator] Add a way to dump a `dot` representation of the dominator tree

[Davide Italiano via Phabricator via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL301205: [DomPrinter] Add a way to programmatically dump a dot representation. (authored by davide).

Changed prior to commit:
  https://reviews.llvm.org/D32145?vs=95516&id=96429#toc

Repository:
  rL LLVM

https://reviews.llvm.org/D32145

Files:
  llvm/trunk/include/llvm/IR/Dominators.h
  llvm/trunk/lib/Analysis/DomPrinter.cpp


Index: llvm/trunk/lib/Analysis/DomPrinter.cpp
===================================================================
--- llvm/trunk/lib/Analysis/DomPrinter.cpp
+++ llvm/trunk/lib/Analysis/DomPrinter.cpp
@@ -80,6 +80,22 @@
 };
 }
 
+void DominatorTree::viewGraph(const Twine &Name, const Twine &Title) {
+#ifndef NDEBUG
+  ViewGraph(this, Name, false, Title);
+#else
+  errs() << "DomTree dump not available, build with DEBUG\n";
+#endif  // NDEBUG
+}
+
+void DominatorTree::viewGraph() {
+#ifndef NDEBUG
+  this->viewGraph("domtree", "Dominator Tree for function");
+#else
+  errs() << "DomTree dump not available, build with DEBUG\n";
+#endif  // NDEBUG
+}
+
 namespace {
 struct DominatorTreeWrapperPassAnalysisGraphTraits {
   static DominatorTree *getGraph(DominatorTreeWrapperPass *DTWP) {
Index: llvm/trunk/include/llvm/IR/Dominators.h
===================================================================
--- llvm/trunk/include/llvm/IR/Dominators.h
+++ llvm/trunk/include/llvm/IR/Dominators.h
@@ -157,6 +157,10 @@
   /// This should only be used for debugging as it aborts the program if the
   /// verification fails.
   void verifyDomTree() const;
+
+  // Pop up a GraphViz/gv window with the Dominator Tree rendered using `dot`.
+  void viewGraph(const Twine &Name, const Twine &Title);
+  void viewGraph();
 };
 
 //===-------------------------------------


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