1 //===- NewPMDriver.cpp - Driver for opt with new PM -----------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 /// \file
10 ///
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.
13 ///
14 //===----------------------------------------------------------------------===//
15
16 #include "NewPMDriver.h"
17 #include "llvm/ADT/StringRef.h"
18 #include "llvm/Analysis/CGSCCPassManager.h"
19 #include "llvm/Bitcode/BitcodeWriterPass.h"
20 #include "llvm/IR/Dominators.h"
21 #include "llvm/IR/IRPrintingPasses.h"
22 #include "llvm/IR/LLVMContext.h"
23 #include "llvm/IR/Module.h"
24 #include "llvm/IR/PassManager.h"
25 #include "llvm/IR/Verifier.h"
26 #include "llvm/Passes/PassBuilder.h"
27 #include "llvm/Support/CommandLine.h"
28 #include "llvm/Support/ErrorHandling.h"
29 #include "llvm/Support/ToolOutputFile.h"
30 #include "llvm/Target/TargetMachine.h"
31
32 using namespace llvm;
33 using namespace opt_tool;
34
35 static cl::opt<bool>
36 DebugPM("debug-pass-manager", cl::Hidden,
37 cl::desc("Print pass management debugging information"));
38
runPassPipeline(StringRef Arg0,LLVMContext & Context,Module & M,TargetMachine * TM,tool_output_file * Out,StringRef PassPipeline,OutputKind OK,VerifierKind VK,bool ShouldPreserveAssemblyUseListOrder,bool ShouldPreserveBitcodeUseListOrder)39 bool llvm::runPassPipeline(StringRef Arg0, LLVMContext &Context, Module &M,
40 TargetMachine *TM, tool_output_file *Out,
41 StringRef PassPipeline, OutputKind OK,
42 VerifierKind VK,
43 bool ShouldPreserveAssemblyUseListOrder,
44 bool ShouldPreserveBitcodeUseListOrder) {
45 PassBuilder PB(TM);
46
47 FunctionAnalysisManager FAM(DebugPM);
48 CGSCCAnalysisManager CGAM(DebugPM);
49 ModuleAnalysisManager MAM(DebugPM);
50
51 // Register all the basic analyses with the managers.
52 PB.registerModuleAnalyses(MAM);
53 PB.registerCGSCCAnalyses(CGAM);
54 PB.registerFunctionAnalyses(FAM);
55
56 // Cross register the analysis managers through their proxies.
57 MAM.registerPass(FunctionAnalysisManagerModuleProxy(FAM));
58 MAM.registerPass(CGSCCAnalysisManagerModuleProxy(CGAM));
59 CGAM.registerPass(FunctionAnalysisManagerCGSCCProxy(FAM));
60 CGAM.registerPass(ModuleAnalysisManagerCGSCCProxy(MAM));
61 FAM.registerPass(CGSCCAnalysisManagerFunctionProxy(CGAM));
62 FAM.registerPass(ModuleAnalysisManagerFunctionProxy(MAM));
63
64 ModulePassManager MPM(DebugPM);
65 if (VK > VK_NoVerifier)
66 MPM.addPass(VerifierPass());
67
68 if (!PB.parsePassPipeline(MPM, PassPipeline, VK == VK_VerifyEachPass,
69 DebugPM)) {
70 errs() << Arg0 << ": unable to parse pass pipeline description.\n";
71 return false;
72 }
73
74 if (VK > VK_NoVerifier)
75 MPM.addPass(VerifierPass());
76
77 // Add any relevant output pass at the end of the pipeline.
78 switch (OK) {
79 case OK_NoOutput:
80 break; // No output pass needed.
81 case OK_OutputAssembly:
82 MPM.addPass(
83 PrintModulePass(Out->os(), "", ShouldPreserveAssemblyUseListOrder));
84 break;
85 case OK_OutputBitcode:
86 MPM.addPass(
87 BitcodeWriterPass(Out->os(), ShouldPreserveBitcodeUseListOrder));
88 break;
89 }
90
91 // Before executing passes, print the final values of the LLVM options.
92 cl::PrintOptionValues();
93
94 // Now that we have all of the passes ready, run them.
95 MPM.run(M, &MAM);
96
97 // Declare success.
98 if (OK != OK_NoOutput)
99 Out->keep();
100 return true;
101 }
102