[llvm-commits] CVS: llvm/lib/Analysis/DataStructure/Printer.cpp

[Chris Lattner]

Changes in directory llvm/lib/Analysis/DataStructure:

Printer.cpp updated: 1.47 -> 1.48

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Log message:

Implement a new "viewGraph" method which can be used to instantly view a graph from gdb


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Diffs of the changes:

Index: llvm/lib/Analysis/DataStructure/Printer.cpp
diff -u llvm/lib/Analysis/DataStructure/Printer.cpp:1.47 llvm/lib/Analysis/DataStructure/Printer.cpp:1.48
--- llvm/lib/Analysis/DataStructure/Printer.cpp:1.47	Wed Feb  5 15:59:56 2003
+++ llvm/lib/Analysis/DataStructure/Printer.cpp	Mon Feb 10 12:17:07 2003
@@ -179,6 +179,23 @@
   }
 }
 
+/// viewGraph - Emit a dot graph, run 'dot', run gv on the postscript file,
+/// then cleanup.  For use from the debugger.
+///
+void DSGraph::viewGraph() const {
+  std::ofstream F("/tmp/tempgraph.dot");
+  if (!F.good()) {
+    std::cerr << "Error opening '/tmp/tempgraph.dot' for temporary graph!\n";
+    return;
+  }
+  print(F);
+  if (system("dot -Tps /tmp/tempgraph.dot > /tmp/tempgraph.ps"))
+    std::cerr << "Error running dot: 'dot' not in path?\n";
+  system("gv /tmp/tempgraph.ps");
+  system("rm /tmp/tempgraph.dot /tmp/tempgraph.ps");
+}
+
+
 template <typename Collection>
 static void printCollection(const Collection &C, std::ostream &O,
                             const Module *M, const std::string &Prefix) {