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"),
42 cl::desc("Output file"));
43 cl::alias OutputFilenameA("o", cl::desc("Alias for --output"), cl::Required,
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 (error_code ec = InstrProfReader::create(Filename, Reader))
60 exitWithError(ec.message(), Filename);
62 for (const auto &I : *Reader)
63 if (error_code EC = Writer.addFunctionCounts(I.Name, I.Hash, I.Counts))
64 errs() << Filename << ": " << I.Name << ": " << EC.message() << "\n";
65 if (Reader->hasError())
66 exitWithError(Reader->getError().message(), Filename);
73 int show_main(int argc, const char *argv[]) {
74 cl::opt<std::string> Filename(cl::Positional, cl::Required,
75 cl::desc("<profdata-file>"));
77 cl::opt<bool> ShowCounts("counts", cl::init(false),
78 cl::desc("Show counter values for shown functions"));
79 cl::opt<bool> ShowAllFunctions("all-functions", cl::init(false),
80 cl::desc("Details for every function"));
81 cl::opt<std::string> ShowFunction("function",
82 cl::desc("Details for matching functions"));
84 cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
86 cl::desc("Output file"));
87 cl::alias OutputFilenameA("o", cl::desc("Alias for --output"),
88 cl::aliasopt(OutputFilename));
90 cl::ParseCommandLineOptions(argc, argv, "LLVM profile data summary\n");
92 std::unique_ptr<InstrProfReader> Reader;
93 if (error_code EC = InstrProfReader::create(Filename, Reader))
94 exitWithError(EC.message(), Filename);
96 if (OutputFilename.empty())
99 std::string ErrorInfo;
100 raw_fd_ostream OS(OutputFilename.data(), ErrorInfo, sys::fs::F_Text);
101 if (!ErrorInfo.empty())
102 exitWithError(ErrorInfo, OutputFilename);
104 if (ShowAllFunctions && !ShowFunction.empty())
105 errs() << "warning: -function argument ignored: showing all functions\n";
107 uint64_t MaxFunctionCount = 0, MaxBlockCount = 0;
108 size_t ShownFunctions = 0, TotalFunctions = 0;
109 for (const auto &Func : *Reader) {
110 bool Show = ShowAllFunctions ||
111 (!ShowFunction.empty() &&
112 Func.Name.find(ShowFunction) != Func.Name.npos);
115 assert(Func.Counts.size() > 0 && "function missing entry counter");
116 if (Func.Counts[0] > MaxFunctionCount)
117 MaxFunctionCount = Func.Counts[0];
124 OS << " " << Func.Name << ":\n"
125 << " Hash: " << format("0x%016" PRIx64, Func.Hash) << "\n"
126 << " Counters: " << Func.Counts.size() << "\n"
127 << " Function count: " << Func.Counts[0] << "\n";
130 if (Show && ShowCounts)
131 OS << " Block counts: [";
132 for (size_t I = 1, E = Func.Counts.size(); I < E; ++I) {
133 if (Func.Counts[I] > MaxBlockCount)
134 MaxBlockCount = Func.Counts[I];
135 if (Show && ShowCounts)
136 OS << (I == 1 ? "" : ", ") << Func.Counts[I];
138 if (Show && ShowCounts)
141 if (Reader->hasError())
142 exitWithError(Reader->getError().message(), Filename);
144 if (ShowAllFunctions || !ShowFunction.empty())
145 OS << "Functions shown: " << ShownFunctions << "\n";
146 OS << "Total functions: " << TotalFunctions << "\n";
147 OS << "Maximum function count: " << MaxFunctionCount << "\n";
148 OS << "Maximum internal block count: " << MaxBlockCount << "\n";
152 int main(int argc, const char *argv[]) {
153 // Print a stack trace if we signal out.
154 sys::PrintStackTraceOnErrorSignal();
155 PrettyStackTraceProgram X(argc, argv);
156 llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
158 StringRef ProgName(sys::path::filename(argv[0]));
160 int (*func)(int, const char *[]) = nullptr;
162 if (strcmp(argv[1], "merge") == 0)
164 else if (strcmp(argv[1], "show") == 0)
168 std::string Invocation(ProgName.str() + " " + argv[1]);
169 argv[1] = Invocation.c_str();
170 return func(argc - 1, argv + 1);
173 if (strcmp(argv[1], "-h") == 0 ||
174 strcmp(argv[1], "-help") == 0 ||
175 strcmp(argv[1], "--help") == 0) {
177 errs() << "OVERVIEW: LLVM profile data tools\n\n"
178 << "USAGE: " << ProgName << " <command> [args...]\n"
179 << "USAGE: " << ProgName << " <command> -help\n\n"
180 << "Available commands: merge, show\n";
186 errs() << ProgName << ": No command specified!\n";
188 errs() << ProgName << ": Unknown command!\n";
190 errs() << "USAGE: " << ProgName << " <merge|show> [args...]\n";