1 //===- OptimizerDriver.cpp - Allow BugPoint to run passes safely ----------===//
8 //===----------------------------------------------------------------------===//
16 //===----------------------------------------------------------------------===//
42   extern cl::opt<std::string> OutputPrefix;
45 static cl::opt<bool> PreserveBitcodeUseListOrder(
46     "preserve-bc-uselistorder",
47     cl::desc("Preserve use-list order when writing LLVM bitcode."),
51   // ChildOutput - This option captures the name of the child output file that
53   cl::opt<std::string> ChildOutput("child-output", cl::ReallyHidden);
54   cl::opt<std::string> OptCmd("opt-command", cl::init(""),
55                               cl::desc("Path to opt. (default: search path "
56                                        "for 'opt'.)"));
59 /// writeProgramToFile - This writes the current "Program" to the named bitcode
62 static bool writeProgramToFileAux(tool_output_file &Out, const Module *M) {  in writeProgramToFileAux()  argument
63   WriteBitcodeToFile(M, Out.os(), PreserveBitcodeUseListOrder);  in writeProgramToFileAux()
64   Out.os().close();  in writeProgramToFileAux()
65   if (!Out.os().has_error()) {  in writeProgramToFileAux()
66     Out.keep();  in writeProgramToFileAux()
74   tool_output_file Out(Filename, FD);  in writeProgramToFile()  local
75   return writeProgramToFileAux(Out, M);  in writeProgramToFile()
81   tool_output_file Out(Filename, EC, sys::fs::F_None);  in writeProgramToFile()  local
83     return writeProgramToFileAux(Out, M);  in writeProgramToFile()
88 /// EmitProgressBitcode - This function is used to output the current Program
89 /// to a file named "bugpoint-ID.bc".
95   // telling the user how to reproduce it: opt -foo blah.bc  in EmitProgressBitcode()
97   std::string Filename = OutputPrefix + "-" + ID + ".bc";  in EmitProgressBitcode()
107   outs() << "opt " << Filename;  in EmitProgressBitcode()
109     outs() << " -load " << PluginLoader::getPlugin(i);  in EmitProgressBitcode()
114 cl::opt<bool> SilencePasses("silence-passes",
117 static cl::list<std::string> OptArgs("opt-args", cl::Positional,
118                                      cl::desc("<opt arguments>..."),
121 /// runPasses - Run the specified passes on Program, outputting a bitcode file
138       OutputPrefix + "-output-%%%%%%%.bc", UniqueFilename);  in runPasses()
149   EC = sys::fs::createUniqueFile(OutputPrefix + "-input-%%%%%%%.bc", InputFD,  in runPasses()
169     if (ErrorOr<std::string> Path = sys::findProgramByName("opt"))  in runPasses()
175     errs() << "Cannot find `opt' in PATH!\n";  in runPasses()
192   // Ok, everything that could go wrong before running opt is done.  in runPasses()
199     Args.push_back("--error-exitcode=1");  in runPasses()
200     Args.push_back("-q");  in runPasses()
205   Args.push_back("-o");  in runPasses()
211     pass_args.push_back( std::string("-load"));  in runPasses()
216     pass_args.push_back( std::string("-") + (*I) );  in runPasses()
219     Args.push_back(I->c_str());  in runPasses()
226         for (unsigned i = 0, e = Args.size()-1; i != e; ++i)  in runPasses()
254       if (result == -1)  in runPasses()