1 files changed, 81 insertions, 0 deletions
diff --git a/tools/opt/NewPMDriver.cpp b/tools/opt/NewPMDriver.cpp
new file mode 100644
index 0000000..fc4a1bf
--- /dev/null
+++ b/tools/opt/NewPMDriver.cpp
@@ -0,0 +1,81 @@
+//===- NewPMDriver.cpp - Driver for opt with new PM -----------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+/// \file
+///
+/// This file is just a split of the code that logically belongs in opt.cpp but
+/// that includes the new pass manager headers.
+///
+//===----------------------------------------------------------------------===//
+
+#include "NewPMDriver.h"
+#include "Passes.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Analysis/LazyCallGraph.h"
+#include "llvm/Bitcode/BitcodeWriterPass.h"
+#include "llvm/IR/IRPrintingPasses.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/PassManager.h"
+#include "llvm/IR/Verifier.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/ToolOutputFile.h"
+
+using namespace llvm;
+using namespace opt_tool;
+
+bool llvm::runPassPipeline(StringRef Arg0, LLVMContext &Context, Module &M,
+                           tool_output_file *Out, StringRef PassPipeline,
+                           OutputKind OK, VerifierKind VK) {
+  FunctionAnalysisManager FAM;
+  ModuleAnalysisManager MAM;
+
+  // FIXME: Lift this registration of analysis passes into a .def file adjacent
+  // to the one used to associate names with passes.
+  MAM.registerPass(LazyCallGraphAnalysis());
+
+  // Cross register the analysis managers through their proxies.
+  MAM.registerPass(FunctionAnalysisManagerModuleProxy(FAM));
+  FAM.registerPass(ModuleAnalysisManagerFunctionProxy(MAM));
+
+  ModulePassManager MPM;
+  if (VK > VK_NoVerifier)
+    MPM.addPass(VerifierPass());
+
+  if (!parsePassPipeline(MPM, PassPipeline, VK == VK_VerifyEachPass)) {
+    errs() << Arg0 << ": unable to parse pass pipeline description.\n";
+    return false;
+  }
+
+  if (VK > VK_NoVerifier)
+    MPM.addPass(VerifierPass());
+
+  // Add any relevant output pass at the end of the pipeline.
+  switch (OK) {
+  case OK_NoOutput:
+    break; // No output pass needed.
+  case OK_OutputAssembly:
+    MPM.addPass(PrintModulePass(Out->os()));
+    break;
+  case OK_OutputBitcode:
+    MPM.addPass(BitcodeWriterPass(Out->os()));
+    break;
+  }
+
+  // Before executing passes, print the final values of the LLVM options.
+  cl::PrintOptionValues();
+
+  // Now that we have all of the passes ready, run them.
+  MPM.run(&M, &MAM);
+
+  // Declare success.
+  if (OK != OK_NoOutput)
+    Out->keep();
+  return true;
+}