1 //===- NewPMDriver.cpp - Driver for opt with new PM -----------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// This file is just a split of the code that logically belongs in opt.cpp but
12 /// that includes the new pass manager headers.
14 //===----------------------------------------------------------------------===//
16 #include "NewPMDriver.h"
17 #include "llvm/ADT/StringRef.h"
18 #include "llvm/Analysis/AliasAnalysis.h"
19 #include "llvm/Analysis/CGSCCPassManager.h"
20 #include "llvm/Bitcode/BitcodeWriterPass.h"
21 #include "llvm/IR/Dominators.h"
22 #include "llvm/IR/IRPrintingPasses.h"
23 #include "llvm/IR/LLVMContext.h"
24 #include "llvm/IR/Module.h"
25 #include "llvm/IR/PassManager.h"
26 #include "llvm/IR/Verifier.h"
27 #include "llvm/Passes/PassBuilder.h"
28 #include "llvm/Support/CommandLine.h"
29 #include "llvm/Support/ErrorHandling.h"
30 #include "llvm/Support/ToolOutputFile.h"
31 #include "llvm/Target/TargetMachine.h"
32 #include "llvm/Transforms/Scalar/LoopPassManager.h"
35 using namespace opt_tool;
38 DebugPM("debug-pass-manager", cl::Hidden,
39 cl::desc("Print pass management debugging information"));
41 // This flag specifies a textual description of the alias analysis pipeline to
42 // use when querying for aliasing information. It only works in concert with
43 // the "passes" flag above.
44 static cl::opt<std::string>
45 AAPipeline("aa-pipeline",
46 cl::desc("A textual description of the alias analysis "
47 "pipeline for handling managed aliasing queries"),
50 bool llvm::runPassPipeline(StringRef Arg0, Module &M,
51 TargetMachine *TM, tool_output_file *Out,
52 StringRef PassPipeline, OutputKind OK,
54 bool ShouldPreserveAssemblyUseListOrder,
55 bool ShouldPreserveBitcodeUseListOrder,
56 bool EmitSummaryIndex, bool EmitModuleHash) {
59 // Specially handle the alias analysis manager so that we can register
60 // a custom pipeline of AA passes with it.
62 if (!PB.parseAAPipeline(AA, AAPipeline)) {
63 errs() << Arg0 << ": unable to parse AA pipeline description.\n";
67 LoopAnalysisManager LAM(DebugPM);
68 FunctionAnalysisManager FAM(DebugPM);
69 CGSCCAnalysisManager CGAM(DebugPM);
70 ModuleAnalysisManager MAM(DebugPM);
72 // Register the AA manager first so that our version is the one used.
73 FAM.registerPass([&] { return std::move(AA); });
75 // Register all the basic analyses with the managers.
76 PB.registerModuleAnalyses(MAM);
77 PB.registerCGSCCAnalyses(CGAM);
78 PB.registerFunctionAnalyses(FAM);
79 PB.registerLoopAnalyses(LAM);
80 PB.crossRegisterProxies(LAM, FAM, CGAM, MAM);
82 ModulePassManager MPM(DebugPM);
83 if (VK > VK_NoVerifier)
84 MPM.addPass(VerifierPass());
86 if (!PB.parsePassPipeline(MPM, PassPipeline, VK == VK_VerifyEachPass,
88 errs() << Arg0 << ": unable to parse pass pipeline description.\n";
92 if (VK > VK_NoVerifier)
93 MPM.addPass(VerifierPass());
95 // Add any relevant output pass at the end of the pipeline.
98 break; // No output pass needed.
99 case OK_OutputAssembly:
101 PrintModulePass(Out->os(), "", ShouldPreserveAssemblyUseListOrder));
103 case OK_OutputBitcode:
104 MPM.addPass(BitcodeWriterPass(Out->os(), ShouldPreserveBitcodeUseListOrder,
105 EmitSummaryIndex, EmitModuleHash));
109 // Before executing passes, print the final values of the LLVM options.
110 cl::PrintOptionValues();
112 // Now that we have all of the passes ready, run them.
116 if (OK != OK_NoOutput)