blob: ba88aad9ec73e3f21fc1d3f04b5035bfb8722053 [file] [log] [blame]
Duncan P. N. Exon Smith846a6272014-02-17 23:22:49 +00001//===- llvm-profdata.cpp - LLVM profile data tool -------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// llvm-profdata merges .profdata files.
11//
12//===----------------------------------------------------------------------===//
13
Duncan P. N. Exon Smith846a6272014-02-17 23:22:49 +000014#include "llvm/ADT/StringRef.h"
Justin Bognerf8d79192014-03-21 17:24:48 +000015#include "llvm/ProfileData/InstrProfReader.h"
Justin Bognerb9bd7f82014-03-21 17:46:22 +000016#include "llvm/ProfileData/InstrProfWriter.h"
Duncan P. N. Exon Smith846a6272014-02-17 23:22:49 +000017#include "llvm/Support/CommandLine.h"
Benjamin Kramerd59664f2014-04-29 23:26:49 +000018#include "llvm/Support/FileSystem.h"
Justin Bogner423380f2014-03-23 20:43:50 +000019#include "llvm/Support/Format.h"
Duncan P. N. Exon Smith846a6272014-02-17 23:22:49 +000020#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"
25
26using namespace llvm;
27
Justin Bognerf8d79192014-03-21 17:24:48 +000028static void exitWithError(const Twine &Message, StringRef Whence = "") {
29 errs() << "error: ";
30 if (!Whence.empty())
31 errs() << Whence << ": ";
32 errs() << Message << "\n";
Duncan P. N. Exon Smith846a6272014-02-17 23:22:49 +000033 ::exit(1);
34}
35
Justin Bogner618bcea2014-03-19 02:20:46 +000036int merge_main(int argc, const char *argv[]) {
Justin Bognerb9bd7f82014-03-21 17:46:22 +000037 cl::list<std::string> Inputs(cl::Positional, cl::Required, cl::OneOrMore,
38 cl::desc("<filenames...>"));
Justin Bogner618bcea2014-03-19 02:20:46 +000039
40 cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
41 cl::init("-"),
42 cl::desc("Output file"));
Justin Bognerb7aa2632014-04-18 21:48:40 +000043 cl::alias OutputFilenameA("o", cl::desc("Alias for --output"), cl::Required,
44 cl::aliasopt(OutputFilename));
Justin Bognerbfee8d42014-03-12 20:14:17 +000045
Justin Bognerec49f982014-03-12 22:00:57 +000046 cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");
Justin Bognerbfee8d42014-03-12 20:14:17 +000047
Justin Bognerb7aa2632014-04-18 21:48:40 +000048 if (OutputFilename.compare("-") == 0)
49 exitWithError("Cannot write indexed profdata format to stdout.");
Justin Bognerec49f982014-03-12 22:00:57 +000050
51 std::string ErrorInfo;
NAKAMURA Takumi4baaa6a2014-03-22 05:38:22 +000052 raw_fd_ostream Output(OutputFilename.data(), ErrorInfo, sys::fs::F_None);
Justin Bognerec49f982014-03-12 22:00:57 +000053 if (!ErrorInfo.empty())
54 exitWithError(ErrorInfo, OutputFilename);
55
Justin Bognerb9bd7f82014-03-21 17:46:22 +000056 InstrProfWriter Writer;
57 for (const auto &Filename : Inputs) {
58 std::unique_ptr<InstrProfReader> Reader;
Rafael Espindola4453e42942014-06-13 03:07:50 +000059 if (std::error_code ec = InstrProfReader::create(Filename, Reader))
Justin Bognerb9bd7f82014-03-21 17:46:22 +000060 exitWithError(ec.message(), Filename);
Justin Bognerf8d79192014-03-21 17:24:48 +000061
Justin Bognerb9bd7f82014-03-21 17:46:22 +000062 for (const auto &I : *Reader)
Rafael Espindola4453e42942014-06-13 03:07:50 +000063 if (std::error_code EC =
64 Writer.addFunctionCounts(I.Name, I.Hash, I.Counts))
Justin Bognerb9bd7f82014-03-21 17:46:22 +000065 errs() << Filename << ": " << I.Name << ": " << EC.message() << "\n";
66 if (Reader->hasError())
67 exitWithError(Reader->getError().message(), Filename);
Justin Bognerbfee8d42014-03-12 20:14:17 +000068 }
Justin Bognerb9bd7f82014-03-21 17:46:22 +000069 Writer.write(Output);
Justin Bognerbfee8d42014-03-12 20:14:17 +000070
Justin Bognerec49f982014-03-12 22:00:57 +000071 return 0;
Justin Bognerbfee8d42014-03-12 20:14:17 +000072}
Justin Bogner618bcea2014-03-19 02:20:46 +000073
Justin Bogner9af28ef2014-03-21 17:29:44 +000074int show_main(int argc, const char *argv[]) {
75 cl::opt<std::string> Filename(cl::Positional, cl::Required,
76 cl::desc("<profdata-file>"));
77
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"));
84
85 cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
86 cl::init("-"),
87 cl::desc("Output file"));
88 cl::alias OutputFilenameA("o", cl::desc("Alias for --output"),
89 cl::aliasopt(OutputFilename));
90
91 cl::ParseCommandLineOptions(argc, argv, "LLVM profile data summary\n");
92
93 std::unique_ptr<InstrProfReader> Reader;
Rafael Espindola4453e42942014-06-13 03:07:50 +000094 if (std::error_code EC = InstrProfReader::create(Filename, Reader))
Justin Bogner9af28ef2014-03-21 17:29:44 +000095 exitWithError(EC.message(), Filename);
96
97 if (OutputFilename.empty())
98 OutputFilename = "-";
99
100 std::string ErrorInfo;
101 raw_fd_ostream OS(OutputFilename.data(), ErrorInfo, sys::fs::F_Text);
102 if (!ErrorInfo.empty())
103 exitWithError(ErrorInfo, OutputFilename);
104
105 if (ShowAllFunctions && !ShowFunction.empty())
106 errs() << "warning: -function argument ignored: showing all functions\n";
107
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);
114
115 ++TotalFunctions;
Justin Bognerb59d7c72014-04-25 02:45:33 +0000116 assert(Func.Counts.size() > 0 && "function missing entry counter");
Justin Bogner9af28ef2014-03-21 17:29:44 +0000117 if (Func.Counts[0] > MaxFunctionCount)
118 MaxFunctionCount = Func.Counts[0];
119
120 if (Show) {
121 if (!ShownFunctions)
122 OS << "Counters:\n";
123 ++ShownFunctions;
124
125 OS << " " << Func.Name << ":\n"
Justin Bogner423380f2014-03-23 20:43:50 +0000126 << " Hash: " << format("0x%016" PRIx64, Func.Hash) << "\n"
Justin Bogner9af28ef2014-03-21 17:29:44 +0000127 << " Counters: " << Func.Counts.size() << "\n"
128 << " Function count: " << Func.Counts[0] << "\n";
129 }
130
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];
138 }
139 if (Show && ShowCounts)
140 OS << "]\n";
141 }
Justin Bognerdb1225d2014-03-23 20:55:53 +0000142 if (Reader->hasError())
143 exitWithError(Reader->getError().message(), Filename);
Justin Bogner9af28ef2014-03-21 17:29:44 +0000144
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
Justin Bogner618bcea2014-03-19 02:20:46 +0000153int 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) {
Craig Toppere6cb63e2014-04-25 04:24:47 +0000161 int (*func)(int, const char *[]) = nullptr;
Justin Bogner618bcea2014-03-19 02:20:46 +0000162
163 if (strcmp(argv[1], "merge") == 0)
164 func = merge_main;
Justin Bogner9af28ef2014-03-21 17:29:44 +0000165 else if (strcmp(argv[1], "show") == 0)
166 func = show_main;
Justin Bogner618bcea2014-03-19 02:20:46 +0000167
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"
Justin Bogner9af28ef2014-03-21 17:29:44 +0000181 << "Available commands: merge, show\n";
Justin Bogner618bcea2014-03-19 02:20:46 +0000182 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
Justin Bogner9af28ef2014-03-21 17:29:44 +0000191 errs() << "USAGE: " << ProgName << " <merge|show> [args...]\n";
Justin Bogner618bcea2014-03-19 02:20:46 +0000192 return 1;
193}