| //===- llvm-profdata.cpp - LLVM profile data tool -------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // llvm-profdata merges .profdata files. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/ProfileData/InstrProfReader.h" |
| #include "llvm/ProfileData/InstrProfWriter.h" |
| #include "llvm/Support/CommandLine.h" |
| #include "llvm/Support/FileSystem.h" |
| #include "llvm/Support/Format.h" |
| #include "llvm/Support/ManagedStatic.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/Support/PrettyStackTrace.h" |
| #include "llvm/Support/Signals.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| using namespace llvm; |
| |
| static void exitWithError(const Twine &Message, StringRef Whence = "") { |
| errs() << "error: "; |
| if (!Whence.empty()) |
| errs() << Whence << ": "; |
| errs() << Message << "\n"; |
| ::exit(1); |
| } |
| |
| int merge_main(int argc, const char *argv[]) { |
| cl::list<std::string> Inputs(cl::Positional, cl::Required, cl::OneOrMore, |
| cl::desc("<filenames...>")); |
| |
| cl::opt<std::string> OutputFilename("output", cl::value_desc("output"), |
| cl::init("-"), |
| cl::desc("Output file")); |
| cl::alias OutputFilenameA("o", cl::desc("Alias for --output"), cl::Required, |
| cl::aliasopt(OutputFilename)); |
| |
| cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n"); |
| |
| if (OutputFilename.compare("-") == 0) |
| exitWithError("Cannot write indexed profdata format to stdout."); |
| |
| std::string ErrorInfo; |
| raw_fd_ostream Output(OutputFilename.data(), ErrorInfo, sys::fs::F_None); |
| if (!ErrorInfo.empty()) |
| exitWithError(ErrorInfo, OutputFilename); |
| |
| InstrProfWriter Writer; |
| for (const auto &Filename : Inputs) { |
| std::unique_ptr<InstrProfReader> Reader; |
| if (error_code ec = InstrProfReader::create(Filename, Reader)) |
| exitWithError(ec.message(), Filename); |
| |
| for (const auto &I : *Reader) |
| if (error_code EC = Writer.addFunctionCounts(I.Name, I.Hash, I.Counts)) |
| errs() << Filename << ": " << I.Name << ": " << EC.message() << "\n"; |
| if (Reader->hasError()) |
| exitWithError(Reader->getError().message(), Filename); |
| } |
| Writer.write(Output); |
| |
| return 0; |
| } |
| |
| int show_main(int argc, const char *argv[]) { |
| cl::opt<std::string> Filename(cl::Positional, cl::Required, |
| cl::desc("<profdata-file>")); |
| |
| cl::opt<bool> ShowCounts("counts", cl::init(false), |
| cl::desc("Show counter values for shown functions")); |
| cl::opt<bool> ShowAllFunctions("all-functions", cl::init(false), |
| cl::desc("Details for every function")); |
| cl::opt<std::string> ShowFunction("function", |
| cl::desc("Details for matching functions")); |
| |
| cl::opt<std::string> OutputFilename("output", cl::value_desc("output"), |
| cl::init("-"), |
| cl::desc("Output file")); |
| cl::alias OutputFilenameA("o", cl::desc("Alias for --output"), |
| cl::aliasopt(OutputFilename)); |
| |
| cl::ParseCommandLineOptions(argc, argv, "LLVM profile data summary\n"); |
| |
| std::unique_ptr<InstrProfReader> Reader; |
| if (error_code EC = InstrProfReader::create(Filename, Reader)) |
| exitWithError(EC.message(), Filename); |
| |
| if (OutputFilename.empty()) |
| OutputFilename = "-"; |
| |
| std::string ErrorInfo; |
| raw_fd_ostream OS(OutputFilename.data(), ErrorInfo, sys::fs::F_Text); |
| if (!ErrorInfo.empty()) |
| exitWithError(ErrorInfo, OutputFilename); |
| |
| if (ShowAllFunctions && !ShowFunction.empty()) |
| errs() << "warning: -function argument ignored: showing all functions\n"; |
| |
| uint64_t MaxFunctionCount = 0, MaxBlockCount = 0; |
| size_t ShownFunctions = 0, TotalFunctions = 0; |
| for (const auto &Func : *Reader) { |
| bool Show = ShowAllFunctions || |
| (!ShowFunction.empty() && |
| Func.Name.find(ShowFunction) != Func.Name.npos); |
| |
| ++TotalFunctions; |
| assert(Func.Counts.size() > 0 && "function missing entry counter"); |
| if (Func.Counts[0] > MaxFunctionCount) |
| MaxFunctionCount = Func.Counts[0]; |
| |
| if (Show) { |
| if (!ShownFunctions) |
| OS << "Counters:\n"; |
| ++ShownFunctions; |
| |
| OS << " " << Func.Name << ":\n" |
| << " Hash: " << format("0x%016" PRIx64, Func.Hash) << "\n" |
| << " Counters: " << Func.Counts.size() << "\n" |
| << " Function count: " << Func.Counts[0] << "\n"; |
| } |
| |
| if (Show && ShowCounts) |
| OS << " Block counts: ["; |
| for (size_t I = 1, E = Func.Counts.size(); I < E; ++I) { |
| if (Func.Counts[I] > MaxBlockCount) |
| MaxBlockCount = Func.Counts[I]; |
| if (Show && ShowCounts) |
| OS << (I == 1 ? "" : ", ") << Func.Counts[I]; |
| } |
| if (Show && ShowCounts) |
| OS << "]\n"; |
| } |
| if (Reader->hasError()) |
| exitWithError(Reader->getError().message(), Filename); |
| |
| if (ShowAllFunctions || !ShowFunction.empty()) |
| OS << "Functions shown: " << ShownFunctions << "\n"; |
| OS << "Total functions: " << TotalFunctions << "\n"; |
| OS << "Maximum function count: " << MaxFunctionCount << "\n"; |
| OS << "Maximum internal block count: " << MaxBlockCount << "\n"; |
| return 0; |
| } |
| |
| int main(int argc, const char *argv[]) { |
| // Print a stack trace if we signal out. |
| sys::PrintStackTraceOnErrorSignal(); |
| PrettyStackTraceProgram X(argc, argv); |
| llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. |
| |
| StringRef ProgName(sys::path::filename(argv[0])); |
| if (argc > 1) { |
| int (*func)(int, const char *[]) = nullptr; |
| |
| if (strcmp(argv[1], "merge") == 0) |
| func = merge_main; |
| else if (strcmp(argv[1], "show") == 0) |
| func = show_main; |
| |
| if (func) { |
| std::string Invocation(ProgName.str() + " " + argv[1]); |
| argv[1] = Invocation.c_str(); |
| return func(argc - 1, argv + 1); |
| } |
| |
| if (strcmp(argv[1], "-h") == 0 || |
| strcmp(argv[1], "-help") == 0 || |
| strcmp(argv[1], "--help") == 0) { |
| |
| errs() << "OVERVIEW: LLVM profile data tools\n\n" |
| << "USAGE: " << ProgName << " <command> [args...]\n" |
| << "USAGE: " << ProgName << " <command> -help\n\n" |
| << "Available commands: merge, show\n"; |
| return 0; |
| } |
| } |
| |
| if (argc < 2) |
| errs() << ProgName << ": No command specified!\n"; |
| else |
| errs() << ProgName << ": Unknown command!\n"; |
| |
| errs() << "USAGE: " << ProgName << " <merge|show> [args...]\n"; |
| return 1; |
| } |