1 files changed, 35 insertions, 0 deletions
diff --git a/lib/Analysis/IPA/CallGraphSCCPass.cpp b/lib/Analysis/IPA/CallGraphSCCPass.cpp
index 0f39f44..fb08041 100644
--- a/lib/Analysis/IPA/CallGraphSCCPass.cpp
+++ b/lib/Analysis/IPA/CallGraphSCCPass.cpp
@@ -87,10 +87,40 @@ private:
                         bool IsCheckingMode);
 };
 
+/// PrintCallGraphPass - Print a Module corresponding to a call graph.
+///
+class PrintCallGraphPass : public CallGraphSCCPass {
+private:
+  std::string Banner;
+  raw_ostream &Out;       // raw_ostream to print on.
+
+public:
+  static char ID;
+  PrintCallGraphPass() : CallGraphSCCPass(&ID), Out(dbgs()) {}
+  PrintCallGraphPass(const std::string &B, raw_ostream &o)
+      : CallGraphSCCPass(&ID), Banner(B), Out(o) {}
+
+  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+    AU.setPreservesAll();
+  }
+
+  bool runOnSCC(std::vector<CallGraphNode *> &SCC) {
+    Out << Banner;
+    for (std::vector<CallGraphNode *>::iterator n = SCC.begin(), ne = SCC.end();
+         n != ne;
+         ++n) {
+      (*n)->getFunction()->print(Out);
+    }
+    return false;
+  }
+};
+
 } // end anonymous namespace.
 
 char CGPassManager::ID = 0;
 
+char PrintCallGraphPass::ID = 0;
+
 bool CGPassManager::RunPassOnSCC(Pass *P, std::vector<CallGraphNode*> &CurSCC,
                                  CallGraph &CG, bool &CallGraphUpToDate) {
   bool Changed = false;
@@ -396,6 +426,11 @@ bool CGPassManager::doFinalization(CallGraph &CG) {
   return Changed;
 }
 
+Pass *CallGraphSCCPass::createPrinterPass(raw_ostream &O,
+                                          const std::string &Banner) const {
+  return new PrintCallGraphPass(Banner, O);
+}
+
 /// Assign pass manager to manage this pass.
 void CallGraphSCCPass::assignPassManager(PMStack &PMS,
                                          PassManagerType PreferredType) {