Files
llvm-6502/tools/opt/NewPMDriver.cpp
T
Chandler Carruth 3c95d9ccc0 [PM] Push the debug option for the new pass manager into the opt tool
and expose the necessary hooks in the API directly.

This makes it much cleaner for example to log the usage of a pass
manager from a library. It also makes it more obvious that this
functionality isn't "optional" or "asserts-only" for the pass manager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225841 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-13 22:42:38 +00:00

92 lines
2.9 KiB
C++

//===- 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/CGSCCPassManager.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;
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,
tool_output_file *Out, StringRef PassPipeline,
OutputKind OK, VerifierKind VK) {
FunctionAnalysisManager FAM(DebugPM);
CGSCCAnalysisManager CGAM(DebugPM);
ModuleAnalysisManager MAM(DebugPM);
// Register all the basic analyses with the managers.
registerModuleAnalyses(MAM);
registerCGSCCAnalyses(CGAM);
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 (!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()));
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;
}