[CG] Actually hoist up the generic CallGraphPrinter pass from a weird

location in the opt tool to live along side the analysis in LLVM's
libraries.

No functionality changed here, but this will allow me to port the
printer to the new pass manager as well.

llvm-svn: 263101

llvm/include/llvm/InitializePasses.h

@@ -82,6 +82,7 @@ void initializeBranchFolderPassPass(PassRegistry&);
 void initializeBranchProbabilityInfoWrapperPassPass(PassRegistry&);
 void initializeBreakCriticalEdgesPass(PassRegistry&);
 void initializeCallGraphDOTPrinterPass(PassRegistry&);
+void initializeCallGraphPrinterLegacyPassPass(PassRegistry&);
 void initializeCallGraphViewerPass(PassRegistry&);
 void initializeCFGOnlyPrinterPass(PassRegistry&);
 void initializeCFGOnlyViewerPass(PassRegistry&);

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);

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)

llvm/tools/opt/AnalysisWrappers.cpp

@@ -71,23 +71,3 @@ char ExternalFunctionsPassedConstants::ID = 0;
 static RegisterPass<ExternalFunctionsPassedConstants>
   P1("print-externalfnconstants",
      "Print external fn callsites passed constants");
-
-namespace {
-  struct CallGraphPrinter : public ModulePass {
-    static char ID; // Pass ID, replacement for typeid
-    CallGraphPrinter() : ModulePass(ID) {}
-
-    void getAnalysisUsage(AnalysisUsage &AU) const override {
-      AU.setPreservesAll();
-      AU.addRequiredTransitive<CallGraphWrapperPass>();
-    }
-    bool runOnModule(Module &M) override {
-      getAnalysis<CallGraphWrapperPass>().print(errs(), &M);
-      return false;
-    }
-  };
-}
-
-char CallGraphPrinter::ID = 0;
-static RegisterPass<CallGraphPrinter>
-  P2("print-callgraph", "Print a call graph");