-write-graph now can be used with -o.

Makes it possible to set the output file name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67835 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 10 insertions, 4 deletions

diff --git a/include/llvm/CompilerDriver/CompilationGraph.h b/include/llvm/CompilerDriver/CompilationGraph.h
index 6bb649b99c..825d4c40f8 100644
--- a/include/llvm/CompilerDriver/CompilationGraph.h
+++ b/include/llvm/CompilerDriver/CompilationGraph.h
@@ -157,8 +157,8 @@ namespace llvmc {
     /// in your path.
     void viewGraph();
 
-    /// writeGraph - Write a compilation-graph.dot file.
-    void writeGraph();
+    /// writeGraph - Write Graphviz .dot source file to the current direcotry.
+    void writeGraph(const std::string& OutputFilename);
 
     // GraphTraits support.
     friend NodesIterator GraphBegin(CompilationGraph*);
diff --git a/include/llvm/CompilerDriver/Main.inc b/include/llvm/CompilerDriver/Main.inc
index 0e4480b9b1..2d50c95039 100644
--- a/include/llvm/CompilerDriver/Main.inc
+++ b/include/llvm/CompilerDriver/Main.inc
@@ -98,7 +98,11 @@ int main(int argc, char** argv) {
     Plugins.PopulateCompilationGraph(graph);
 
     if (CheckGraph) {
-      return graph.Check();
+      int ret = graph.Check();
+      if (!ret)
+        std::cerr << "check-graph: no errors found.\n";
+
+      return ret;
     }
 
     if (ViewGraph) {
@@ -108,7 +112,9 @@ int main(int argc, char** argv) {
     }
 
     if (WriteGraph) {
-      graph.writeGraph();
+      graph.writeGraph(OutputFilename.empty()
+                       ? std::string("compilation-graph.dot")
+                       : OutputFilename);
       return 0;
     }