1b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten//===- llvm-profdata.cpp - LLVM profile data tool -------------------------===// 2b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// 3b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// The LLVM Compiler Infrastructure 4b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// 5b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// This file is distributed under the University of Illinois Open Source 6b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// License. See LICENSE.TXT for details. 7b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// 8b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten//===----------------------------------------------------------------------===// 9b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// 10b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// llvm-profdata merges .profdata files. 11b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten// 12b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten//===----------------------------------------------------------------------===// 13b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 14b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/ADT/StringRef.h" 15b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/ProfileData/InstrProfReader.h" 16b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/ProfileData/InstrProfWriter.h" 17095ce2204cc75a50d9f1df60d1c8f357209a7c3dGlenn Kasten#include "llvm/Support/CommandLine.h" 18095ce2204cc75a50d9f1df60d1c8f357209a7c3dGlenn Kasten#include "llvm/Support/FileSystem.h" 19b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/Support/Format.h" 20c6853892c94800e72c0bd676d5d2136d48cea76eGlenn Kasten#include "llvm/Support/ManagedStatic.h" 21b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/Support/MemoryBuffer.h" 22b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/Support/PrettyStackTrace.h" 23b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/Support/Signals.h" 24b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten#include "llvm/Support/raw_ostream.h" 25b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 26b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kastenusing namespace llvm; 27b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 28b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kastenstatic void exitWithError(const Twine &Message, StringRef Whence = "") { 29b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten errs() << "error: "; 30b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (!Whence.empty()) 31b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten errs() << Whence << ": "; 32095ce2204cc75a50d9f1df60d1c8f357209a7c3dGlenn Kasten errs() << Message << "\n"; 33b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten ::exit(1); 34b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten} 35b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 36b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kastenint merge_main(int argc, const char *argv[]) { 37b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::list<std::string> Inputs(cl::Positional, cl::Required, cl::OneOrMore, 38b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::desc("<filenames...>")); 39b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 40b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::opt<std::string> OutputFilename("output", cl::value_desc("output"), 41b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::init("-"), 42b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::desc("Output file")); 43b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::alias OutputFilenameA("o", cl::desc("Alias for --output"), cl::Required, 44b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::aliasopt(OutputFilename)); 45b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 46b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n"); 47b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 48b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (OutputFilename.compare("-") == 0) 49b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten exitWithError("Cannot write indexed profdata format to stdout."); 50b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 51b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten std::string ErrorInfo; 52b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten raw_fd_ostream Output(OutputFilename.data(), ErrorInfo, sys::fs::F_None); 53b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (!ErrorInfo.empty()) 54b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten exitWithError(ErrorInfo, OutputFilename); 55b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 56b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten InstrProfWriter Writer; 57b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten for (const auto &Filename : Inputs) { 58b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten std::unique_ptr<InstrProfReader> Reader; 59b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (std::error_code ec = InstrProfReader::create(Filename, Reader)) 60c0b196d740ef7a60728a014be0eaadb0dbc1d7aeGlenn Kasten exitWithError(ec.message(), Filename); 61b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 62e629abc58c2acadc7487ea71c1e063f8f8989199Glenn Kasten for (const auto &I : *Reader) 63b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (std::error_code EC = 64b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten Writer.addFunctionCounts(I.Name, I.Hash, I.Counts)) 65c0b196d740ef7a60728a014be0eaadb0dbc1d7aeGlenn Kasten errs() << Filename << ": " << I.Name << ": " << EC.message() << "\n"; 66c0b196d740ef7a60728a014be0eaadb0dbc1d7aeGlenn Kasten if (Reader->hasError()) 67c0b196d740ef7a60728a014be0eaadb0dbc1d7aeGlenn Kasten exitWithError(Reader->getError().message(), Filename); 68b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten } 69c0b196d740ef7a60728a014be0eaadb0dbc1d7aeGlenn Kasten Writer.write(Output); 70b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 71b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten return 0; 72b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten} 73b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 74b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kastenint show_main(int argc, const char *argv[]) { 75a05622c974763d8ca038f3d39743c926309ab2c2Jean-Michel Trivi cl::opt<std::string> Filename(cl::Positional, cl::Required, 76a05622c974763d8ca038f3d39743c926309ab2c2Jean-Michel Trivi cl::desc("<profdata-file>")); 77b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 78b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::opt<bool> ShowCounts("counts", cl::init(false), 79b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::desc("Show counter values for shown functions")); 80b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::opt<bool> ShowAllFunctions("all-functions", cl::init(false), 81b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::desc("Details for every function")); 82b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::opt<std::string> ShowFunction("function", 83b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::desc("Details for matching functions")); 84b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 85b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::opt<std::string> OutputFilename("output", cl::value_desc("output"), 86b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::init("-"), 87b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::desc("Output file")); 88b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::alias OutputFilenameA("o", cl::desc("Alias for --output"), 89b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::aliasopt(OutputFilename)); 90b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 91b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten cl::ParseCommandLineOptions(argc, argv, "LLVM profile data summary\n"); 92b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 93b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten std::unique_ptr<InstrProfReader> Reader; 94b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (std::error_code EC = InstrProfReader::create(Filename, Reader)) 95b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten exitWithError(EC.message(), Filename); 96b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 97b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (OutputFilename.empty()) 98b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten OutputFilename = "-"; 99b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 100b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten std::string ErrorInfo; 101b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten raw_fd_ostream OS(OutputFilename.data(), ErrorInfo, sys::fs::F_Text); 102b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (!ErrorInfo.empty()) 103a05622c974763d8ca038f3d39743c926309ab2c2Jean-Michel Trivi exitWithError(ErrorInfo, OutputFilename); 104a05622c974763d8ca038f3d39743c926309ab2c2Jean-Michel Trivi 105b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (ShowAllFunctions && !ShowFunction.empty()) 106b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten errs() << "warning: -function argument ignored: showing all functions\n"; 107b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 108b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten uint64_t MaxFunctionCount = 0, MaxBlockCount = 0; 109b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten size_t ShownFunctions = 0, TotalFunctions = 0; 110b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten for (const auto &Func : *Reader) { 111b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten bool Show = ShowAllFunctions || 112b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten (!ShowFunction.empty() && 113b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten Func.Name.find(ShowFunction) != Func.Name.npos); 114b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 115b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten ++TotalFunctions; 116b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten assert(Func.Counts.size() > 0 && "function missing entry counter"); 117b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (Func.Counts[0] > MaxFunctionCount) 118b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten MaxFunctionCount = Func.Counts[0]; 119b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 120b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (Show) { 121b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (!ShownFunctions) 122b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten OS << "Counters:\n"; 123b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten ++ShownFunctions; 124b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 125b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten OS << " " << Func.Name << ":\n" 126b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten << " Hash: " << format("0x%016" PRIx64, Func.Hash) << "\n" 127b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten << " Counters: " << Func.Counts.size() << "\n" 128b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten << " Function count: " << Func.Counts[0] << "\n"; 129b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten } 130b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten 131b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (Show && ShowCounts) 132b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten OS << " Block counts: ["; 133b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten for (size_t I = 1, E = Func.Counts.size(); I < E; ++I) { 134b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (Func.Counts[I] > MaxBlockCount) 135b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten MaxBlockCount = Func.Counts[I]; 136b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten if (Show && ShowCounts) 137b9fa556e62aa6e0c8a59f224136e509df813cfc7Glenn Kasten OS << (I == 1 ? "" : ", ") << Func.Counts[I]; 138 } 139 if (Show && ShowCounts) 140 OS << "]\n"; 141 } 142 if (Reader->hasError()) 143 exitWithError(Reader->getError().message(), Filename); 144 145 if (ShowAllFunctions || !ShowFunction.empty()) 146 OS << "Functions shown: " << ShownFunctions << "\n"; 147 OS << "Total functions: " << TotalFunctions << "\n"; 148 OS << "Maximum function count: " << MaxFunctionCount << "\n"; 149 OS << "Maximum internal block count: " << MaxBlockCount << "\n"; 150 return 0; 151} 152 153int main(int argc, const char *argv[]) { 154 // Print a stack trace if we signal out. 155 sys::PrintStackTraceOnErrorSignal(); 156 PrettyStackTraceProgram X(argc, argv); 157 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. 158 159 StringRef ProgName(sys::path::filename(argv[0])); 160 if (argc > 1) { 161 int (*func)(int, const char *[]) = nullptr; 162 163 if (strcmp(argv[1], "merge") == 0) 164 func = merge_main; 165 else if (strcmp(argv[1], "show") == 0) 166 func = show_main; 167 168 if (func) { 169 std::string Invocation(ProgName.str() + " " + argv[1]); 170 argv[1] = Invocation.c_str(); 171 return func(argc - 1, argv + 1); 172 } 173 174 if (strcmp(argv[1], "-h") == 0 || 175 strcmp(argv[1], "-help") == 0 || 176 strcmp(argv[1], "--help") == 0) { 177 178 errs() << "OVERVIEW: LLVM profile data tools\n\n" 179 << "USAGE: " << ProgName << " <command> [args...]\n" 180 << "USAGE: " << ProgName << " <command> -help\n\n" 181 << "Available commands: merge, show\n"; 182 return 0; 183 } 184 } 185 186 if (argc < 2) 187 errs() << ProgName << ": No command specified!\n"; 188 else 189 errs() << ProgName << ": Unknown command!\n"; 190 191 errs() << "USAGE: " << ProgName << " <merge|show> [args...]\n"; 192 return 1; 193} 194