2 files changed, 27 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/Analysis.cpp b/llvm/lib/Analysis/Analysis.cpp
index 4048146515f..77d89dcd7b5 100644
--- a/llvm/lib/Analysis/Analysis.cpp
+++ b/llvm/lib/Analysis/Analysis.cpp
@@ -27,6 +27,7 @@ void llvm::initializeAnalysis(PassRegistry &Registry) {
   initializeBranchProbabilityInfoWrapperPassPass(Registry);
   initializeCallGraphWrapperPassPass(Registry);
   initializeCallGraphDOTPrinterPass(Registry);
+  initializeCallGraphPrinterLegacyPassPass(Registry);
   initializeCallGraphViewerPass(Registry);
   initializeCostModelAnalysisPass(Registry);
   initializeCFGViewerPass(Registry);
diff --git a/llvm/lib/Analysis/CallGraph.cpp b/llvm/lib/Analysis/CallGraph.cpp
index 426684be58a..235d0f61263 100644
--- a/llvm/lib/Analysis/CallGraph.cpp
+++ b/llvm/lib/Analysis/CallGraph.cpp
@@ -302,3 +302,29 @@ void CallGraphWrapperPass::print(raw_ostream &OS, const Module *) const {
 
 LLVM_DUMP_METHOD
 void CallGraphWrapperPass::dump() const { print(dbgs(), nullptr); }
+
+namespace {
+struct CallGraphPrinterLegacyPass : public ModulePass {
+  static char ID; // Pass ID, replacement for typeid
+  CallGraphPrinterLegacyPass() : ModulePass(ID) {
+    initializeCallGraphPrinterLegacyPassPass(*PassRegistry::getPassRegistry());
+  }
+
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
+    AU.setPreservesAll();
+    AU.addRequiredTransitive<CallGraphWrapperPass>();
+  }
+  bool runOnModule(Module &M) override {
+    getAnalysis<CallGraphWrapperPass>().print(errs(), &M);
+    return false;
+  }
+};
+}
+
+char CallGraphPrinterLegacyPass::ID = 0;
+
+INITIALIZE_PASS_BEGIN(CallGraphPrinterLegacyPass, "print-callgraph",
+                      "Print a call graph", true, true)
+INITIALIZE_PASS_DEPENDENCY(CallGraphWrapperPass)
+INITIALIZE_PASS_END(CallGraphPrinterLegacyPass, "print-callgraph",
+                    "Print a call graph", true, true)