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-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp11
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
index d4c1dcd3b8..8ab6783d56 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -116,10 +116,19 @@ void SelectionDAG::viewGraph() {
F.close();
std::cerr << "\n";
+#ifdef HAVE_GRAPHVIZ
+ std::cerr << "Running 'Graphviz' program... " << std::flush;
+ if (system(("Graphviz " + Filename).c_str())) {
+ std::cerr << "Error viewing graph: 'Graphviz' not in path?\n";
+ } else {
+ return;
+ }
+#endif
+
std::cerr << "Running 'dot' program... " << std::flush;
if (system(("dot -Tps -Nfontname=Courier -Gsize=7.5,10 " + Filename
+ " > /tmp/dag.tempgraph.ps").c_str())) {
- std::cerr << "Error running dot: 'dot' not in path?\n";
+ std::cerr << "Error viewing graph: 'dot' not in path?\n";
} else {
std::cerr << "\n";
system("gv /tmp/dag.tempgraph.ps");