Use the space freed up by sparc and zaurus to import LLVM.

ok hackroom@

1 files changed, 101 insertions, 0 deletions

diff --git a/gnu/llvm/tools/opt/NewPMDriver.cpp b/gnu/llvm/tools/opt/NewPMDriver.cpp
new file mode 100644
index 00000000000..3030d65743a
--- /dev/null
+++ b/gnu/llvm/tools/opt/NewPMDriver.cpp
@@ -0,0 +1,101 @@
+//===- 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 "llvm/ADT/StringRef.h"
+#include "llvm/Analysis/CGSCCPassManager.h"
+#include "llvm/Bitcode/BitcodeWriterPass.h"
+#include "llvm/IR/Dominators.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/Passes/PassBuilder.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Target/TargetMachine.h"
+
+using namespace llvm;
+using namespace opt_tool;
+
+static cl::opt<bool>
+    DebugPM("debug-pass-manager", cl::Hidden,
+            cl::desc("Print pass management debugging information"));
+
+bool llvm::runPassPipeline(StringRef Arg0, LLVMContext &Context, Module &M,
+                           TargetMachine *TM, tool_output_file *Out,
+                           StringRef PassPipeline, OutputKind OK,
+                           VerifierKind VK,
+                           bool ShouldPreserveAssemblyUseListOrder,
+                           bool ShouldPreserveBitcodeUseListOrder) {
+  PassBuilder PB(TM);
+
+  FunctionAnalysisManager FAM(DebugPM);
+  CGSCCAnalysisManager CGAM(DebugPM);
+  ModuleAnalysisManager MAM(DebugPM);
+
+  // Register all the basic analyses with the managers.
+  PB.registerModuleAnalyses(MAM);
+  PB.registerCGSCCAnalyses(CGAM);
+  PB.registerFunctionAnalyses(FAM);
+
+  // Cross register the analysis managers through their proxies.
+  MAM.registerPass(FunctionAnalysisManagerModuleProxy(FAM));
+  MAM.registerPass(CGSCCAnalysisManagerModuleProxy(CGAM));
+  CGAM.registerPass(FunctionAnalysisManagerCGSCCProxy(FAM));
+  CGAM.registerPass(ModuleAnalysisManagerCGSCCProxy(MAM));
+  FAM.registerPass(CGSCCAnalysisManagerFunctionProxy(CGAM));
+  FAM.registerPass(ModuleAnalysisManagerFunctionProxy(MAM));
+
+  ModulePassManager MPM(DebugPM);
+  if (VK > VK_NoVerifier)
+    MPM.addPass(VerifierPass());
+
+  if (!PB.parsePassPipeline(MPM, PassPipeline, VK == VK_VerifyEachPass,
+                            DebugPM)) {
+    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(), "", ShouldPreserveAssemblyUseListOrder));
+    break;
+  case OK_OutputBitcode:
+    MPM.addPass(
+        BitcodeWriterPass(Out->os(), ShouldPreserveBitcodeUseListOrder));
+    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;
+}