1 //===- llvm-profdata.cpp - LLVM profile data tool -------------------------===//
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 //===----------------------------------------------------------------------===//
10 // llvm-profdata merges .profdata files.
12 //===----------------------------------------------------------------------===//
14 #include "llvm/ADT/StringRef.h"
15 #include "llvm/ProfileData/InstrProfReader.h"
16 #include "llvm/ProfileData/InstrProfWriter.h"
17 #include "llvm/Support/CommandLine.h"
18 #include "llvm/Support/FileSystem.h"
19 #include "llvm/Support/Format.h"
20 #include "llvm/Support/ManagedStatic.h"
21 #include "llvm/Support/MemoryBuffer.h"
22 #include "llvm/Support/PrettyStackTrace.h"
23 #include "llvm/Support/Signals.h"
24 #include "llvm/Support/raw_ostream.h"
28 static void exitWithError(const Twine &Message, StringRef Whence = "") {
31 errs() << Whence << ": ";
32 errs() << Message << "\n";
36 int merge_main(int argc, const char *argv[]) {
37 cl::list<std::string> Inputs(cl::Positional, cl::Required, cl::OneOrMore,
38 cl::desc("<filenames...>"));
40 cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
41 cl::init("-"), cl::Required,
42 cl::desc("Output file"));
43 cl::alias OutputFilenameA("o", cl::desc("Alias for --output"),
44 cl::aliasopt(OutputFilename));
46 cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");
48 if (OutputFilename.compare("-") == 0)
49 exitWithError("Cannot write indexed profdata format to stdout.");
51 std::string ErrorInfo;
52 raw_fd_ostream Output(OutputFilename.data(), ErrorInfo, sys::fs::F_None);
53 if (!ErrorInfo.empty())
54 exitWithError(ErrorInfo, OutputFilename);
56 InstrProfWriter Writer;
57 for (const auto &Filename : Inputs) {
58 std::unique_ptr<InstrProfReader> Reader;
59 if (std::error_code ec = InstrProfReader::create(Filename, Reader))
60 exitWithError(ec.message(), Filename);
62 for (const auto &I : *Reader)
63 if (std::error_code EC =
64 Writer.addFunctionCounts(I.Name, I.Hash, I.Counts))
65 errs() << Filename << ": " << I.Name << ": " << EC.message() << "\n";
66 if (Reader->hasError())
67 exitWithError(Reader->getError().message(), Filename);
74 int show_main(int argc, const char *argv[]) {
75 cl::opt<std::string> Filename(cl::Positional, cl::Required,
76 cl::desc("<profdata-file>"));
78 cl::opt<bool> ShowCounts("counts", cl::init(false),
79 cl::desc("Show counter values for shown functions"));
80 cl::opt<bool> ShowAllFunctions("all-functions", cl::init(false),
81 cl::desc("Details for every function"));
82 cl::opt<std::string> ShowFunction("function",
83 cl::desc("Details for matching functions"));
85 cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
87 cl::desc("Output file"));
88 cl::alias OutputFilenameA("o", cl::desc("Alias for --output"),
89 cl::aliasopt(OutputFilename));
91 cl::ParseCommandLineOptions(argc, argv, "LLVM profile data summary\n");
93 std::unique_ptr<InstrProfReader> Reader;
94 if (std::error_code EC = InstrProfReader::create(Filename, Reader))
95 exitWithError(EC.message(), Filename);
97 if (OutputFilename.empty())
100 std::string ErrorInfo;
101 raw_fd_ostream OS(OutputFilename.data(), ErrorInfo, sys::fs::F_Text);
102 if (!ErrorInfo.empty())
103 exitWithError(ErrorInfo, OutputFilename);
105 if (ShowAllFunctions && !ShowFunction.empty())
106 errs() << "warning: -function argument ignored: showing all functions\n";
108 uint64_t MaxFunctionCount = 0, MaxBlockCount = 0;
109 size_t ShownFunctions = 0, TotalFunctions = 0;
110 for (const auto &Func : *Reader) {
111 bool Show = ShowAllFunctions ||
112 (!ShowFunction.empty() &&
113 Func.Name.find(ShowFunction) != Func.Name.npos);
116 assert(Func.Counts.size() > 0 && "function missing entry counter");
117 if (Func.Counts[0] > MaxFunctionCount)
118 MaxFunctionCount = Func.Counts[0];
125 OS << " " << Func.Name << ":\n"
126 << " Hash: " << format("0x%016" PRIx64, Func.Hash) << "\n"
127 << " Counters: " << Func.Counts.size() << "\n"
128 << " Function count: " << Func.Counts[0] << "\n";
131 if (Show && ShowCounts)
132 OS << " Block counts: [";
133 for (size_t I = 1, E = Func.Counts.size(); I < E; ++I) {
134 if (Func.Counts[I] > MaxBlockCount)
135 MaxBlockCount = Func.Counts[I];
136 if (Show && ShowCounts)
137 OS << (I == 1 ? "" : ", ") << Func.Counts[I];
139 if (Show && ShowCounts)
142 if (Reader->hasError())
143 exitWithError(Reader->getError().message(), Filename);
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";
153 int 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.
159 StringRef ProgName(sys::path::filename(argv[0]));
161 int (*func)(int, const char *[]) = nullptr;
163 if (strcmp(argv[1], "merge") == 0)
165 else if (strcmp(argv[1], "show") == 0)
169 std::string Invocation(ProgName.str() + " " + argv[1]);
170 argv[1] = Invocation.c_str();
171 return func(argc - 1, argv + 1);
174 if (strcmp(argv[1], "-h") == 0 ||
175 strcmp(argv[1], "-help") == 0 ||
176 strcmp(argv[1], "--help") == 0) {
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";
187 errs() << ProgName << ": No command specified!\n";
189 errs() << ProgName << ": Unknown command!\n";
191 errs() << "USAGE: " << ProgName << " <merge|show> [args...]\n";