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-rw-r--r--contrib/llvm/tools/llvm-profdata/llvm-profdata.cpp447
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diff --git a/contrib/llvm/tools/llvm-profdata/llvm-profdata.cpp b/contrib/llvm/tools/llvm-profdata/llvm-profdata.cpp
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+++ b/contrib/llvm/tools/llvm-profdata/llvm-profdata.cpp
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+//===- 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/SmallSet.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/IR/LLVMContext.h"
+#include "llvm/ProfileData/InstrProfReader.h"
+#include "llvm/ProfileData/InstrProfWriter.h"
+#include "llvm/ProfileData/SampleProfReader.h"
+#include "llvm/ProfileData/SampleProfWriter.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Errc.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/PrettyStackTrace.h"
+#include "llvm/Support/Signals.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <tuple>
+
+using namespace llvm;
+
+enum ProfileFormat { PF_None = 0, PF_Text, PF_Binary, PF_GCC };
+
+static void exitWithError(const Twine &Message, StringRef Whence = "",
+ StringRef Hint = "") {
+ errs() << "error: ";
+ if (!Whence.empty())
+ errs() << Whence << ": ";
+ errs() << Message << "\n";
+ if (!Hint.empty())
+ errs() << Hint << "\n";
+ ::exit(1);
+}
+
+static void exitWithErrorCode(const std::error_code &Error,
+ StringRef Whence = "") {
+ if (Error.category() == instrprof_category()) {
+ instrprof_error instrError = static_cast<instrprof_error>(Error.value());
+ if (instrError == instrprof_error::unrecognized_format) {
+ // Hint for common error of forgetting -sample for sample profiles.
+ exitWithError(Error.message(), Whence,
+ "Perhaps you forgot to use the -sample option?");
+ }
+ }
+ exitWithError(Error.message(), Whence);
+}
+
+namespace {
+enum ProfileKinds { instr, sample };
+}
+
+static void handleMergeWriterError(std::error_code &Error,
+ StringRef WhenceFile = "",
+ StringRef WhenceFunction = "",
+ bool ShowHint = true) {
+ if (!WhenceFile.empty())
+ errs() << WhenceFile << ": ";
+ if (!WhenceFunction.empty())
+ errs() << WhenceFunction << ": ";
+ errs() << Error.message() << "\n";
+
+ if (ShowHint) {
+ StringRef Hint = "";
+ if (Error.category() == instrprof_category()) {
+ instrprof_error instrError = static_cast<instrprof_error>(Error.value());
+ switch (instrError) {
+ case instrprof_error::hash_mismatch:
+ case instrprof_error::count_mismatch:
+ case instrprof_error::value_site_count_mismatch:
+ Hint = "Make sure that all profile data to be merged is generated "
+ "from the same binary.";
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (!Hint.empty())
+ errs() << Hint << "\n";
+ }
+}
+
+struct WeightedFile {
+ StringRef Filename;
+ uint64_t Weight;
+
+ WeightedFile() {}
+
+ WeightedFile(StringRef F, uint64_t W) : Filename{F}, Weight{W} {}
+};
+typedef SmallVector<WeightedFile, 5> WeightedFileVector;
+
+static void mergeInstrProfile(const WeightedFileVector &Inputs,
+ StringRef OutputFilename,
+ ProfileFormat OutputFormat) {
+ if (OutputFilename.compare("-") == 0)
+ exitWithError("Cannot write indexed profdata format to stdout.");
+
+ if (OutputFormat != PF_Binary && OutputFormat != PF_Text)
+ exitWithError("Unknown format is specified.");
+
+ std::error_code EC;
+ raw_fd_ostream Output(OutputFilename.data(), EC, sys::fs::F_None);
+ if (EC)
+ exitWithErrorCode(EC, OutputFilename);
+
+ InstrProfWriter Writer;
+ SmallSet<std::error_code, 4> WriterErrorCodes;
+ for (const auto &Input : Inputs) {
+ auto ReaderOrErr = InstrProfReader::create(Input.Filename);
+ if (std::error_code ec = ReaderOrErr.getError())
+ exitWithErrorCode(ec, Input.Filename);
+
+ auto Reader = std::move(ReaderOrErr.get());
+ for (auto &I : *Reader) {
+ if (std::error_code EC = Writer.addRecord(std::move(I), Input.Weight)) {
+ // Only show hint the first time an error occurs.
+ bool firstTime = WriterErrorCodes.insert(EC).second;
+ handleMergeWriterError(EC, Input.Filename, I.Name, firstTime);
+ }
+ }
+ if (Reader->hasError())
+ exitWithErrorCode(Reader->getError(), Input.Filename);
+ }
+ if (OutputFormat == PF_Text)
+ Writer.writeText(Output);
+ else
+ Writer.write(Output);
+}
+
+static sampleprof::SampleProfileFormat FormatMap[] = {
+ sampleprof::SPF_None, sampleprof::SPF_Text, sampleprof::SPF_Binary,
+ sampleprof::SPF_GCC};
+
+static void mergeSampleProfile(const WeightedFileVector &Inputs,
+ StringRef OutputFilename,
+ ProfileFormat OutputFormat) {
+ using namespace sampleprof;
+ auto WriterOrErr =
+ SampleProfileWriter::create(OutputFilename, FormatMap[OutputFormat]);
+ if (std::error_code EC = WriterOrErr.getError())
+ exitWithErrorCode(EC, OutputFilename);
+
+ auto Writer = std::move(WriterOrErr.get());
+ StringMap<FunctionSamples> ProfileMap;
+ SmallVector<std::unique_ptr<sampleprof::SampleProfileReader>, 5> Readers;
+ for (const auto &Input : Inputs) {
+ auto ReaderOrErr =
+ SampleProfileReader::create(Input.Filename, getGlobalContext());
+ if (std::error_code EC = ReaderOrErr.getError())
+ exitWithErrorCode(EC, Input.Filename);
+
+ // We need to keep the readers around until after all the files are
+ // read so that we do not lose the function names stored in each
+ // reader's memory. The function names are needed to write out the
+ // merged profile map.
+ Readers.push_back(std::move(ReaderOrErr.get()));
+ const auto Reader = Readers.back().get();
+ if (std::error_code EC = Reader->read())
+ exitWithErrorCode(EC, Input.Filename);
+
+ StringMap<FunctionSamples> &Profiles = Reader->getProfiles();
+ for (StringMap<FunctionSamples>::iterator I = Profiles.begin(),
+ E = Profiles.end();
+ I != E; ++I) {
+ StringRef FName = I->first();
+ FunctionSamples &Samples = I->second;
+ sampleprof_error Result = ProfileMap[FName].merge(Samples, Input.Weight);
+ if (Result != sampleprof_error::success) {
+ std::error_code EC = make_error_code(Result);
+ handleMergeWriterError(EC, Input.Filename, FName);
+ }
+ }
+ }
+ Writer->write(ProfileMap);
+}
+
+static WeightedFile parseWeightedFile(const StringRef &WeightedFilename) {
+ StringRef WeightStr, FileName;
+ std::tie(WeightStr, FileName) = WeightedFilename.split(',');
+
+ uint64_t Weight;
+ if (WeightStr.getAsInteger(10, Weight) || Weight < 1)
+ exitWithError("Input weight must be a positive integer.");
+
+ if (!sys::fs::exists(FileName))
+ exitWithErrorCode(make_error_code(errc::no_such_file_or_directory),
+ FileName);
+
+ return WeightedFile(FileName, Weight);
+}
+
+static int merge_main(int argc, const char *argv[]) {
+ cl::list<std::string> InputFilenames(cl::Positional,
+ cl::desc("<filename...>"));
+ cl::list<std::string> WeightedInputFilenames("weighted-input",
+ cl::desc("<weight>,<filename>"));
+ cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
+ cl::init("-"), cl::Required,
+ cl::desc("Output file"));
+ cl::alias OutputFilenameA("o", cl::desc("Alias for --output"),
+ cl::aliasopt(OutputFilename));
+ cl::opt<ProfileKinds> ProfileKind(
+ cl::desc("Profile kind:"), cl::init(instr),
+ cl::values(clEnumVal(instr, "Instrumentation profile (default)"),
+ clEnumVal(sample, "Sample profile"), clEnumValEnd));
+
+ cl::opt<ProfileFormat> OutputFormat(
+ cl::desc("Format of output profile"), cl::init(PF_Binary),
+ cl::values(clEnumValN(PF_Binary, "binary", "Binary encoding (default)"),
+ clEnumValN(PF_Text, "text", "Text encoding"),
+ clEnumValN(PF_GCC, "gcc",
+ "GCC encoding (only meaningful for -sample)"),
+ clEnumValEnd));
+
+ cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");
+
+ if (InputFilenames.empty() && WeightedInputFilenames.empty())
+ exitWithError("No input files specified. See " +
+ sys::path::filename(argv[0]) + " -help");
+
+ WeightedFileVector WeightedInputs;
+ for (StringRef Filename : InputFilenames)
+ WeightedInputs.push_back(WeightedFile(Filename, 1));
+ for (StringRef WeightedFilename : WeightedInputFilenames)
+ WeightedInputs.push_back(parseWeightedFile(WeightedFilename));
+
+ if (ProfileKind == instr)
+ mergeInstrProfile(WeightedInputs, OutputFilename, OutputFormat);
+ else
+ mergeSampleProfile(WeightedInputs, OutputFilename, OutputFormat);
+
+ return 0;
+}
+
+static int showInstrProfile(std::string Filename, bool ShowCounts,
+ bool ShowIndirectCallTargets, bool ShowAllFunctions,
+ std::string ShowFunction, bool TextFormat,
+ raw_fd_ostream &OS) {
+ auto ReaderOrErr = InstrProfReader::create(Filename);
+ if (std::error_code EC = ReaderOrErr.getError())
+ exitWithErrorCode(EC, Filename);
+
+ auto Reader = std::move(ReaderOrErr.get());
+ 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);
+
+ bool doTextFormatDump = (Show && ShowCounts && TextFormat);
+
+ if (doTextFormatDump) {
+ InstrProfSymtab &Symtab = Reader->getSymtab();
+ InstrProfWriter::writeRecordInText(Func, Symtab, OS);
+ continue;
+ }
+
+ ++TotalFunctions;
+ assert(Func.Counts.size() > 0 && "function missing entry counter");
+ if (Func.Counts[0] > MaxFunctionCount)
+ MaxFunctionCount = Func.Counts[0];
+
+ for (size_t I = 1, E = Func.Counts.size(); I < E; ++I) {
+ if (Func.Counts[I] > MaxBlockCount)
+ MaxBlockCount = Func.Counts[I];
+ }
+
+ 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 (ShowIndirectCallTargets)
+ OS << " Indirect Call Site Count: "
+ << Func.getNumValueSites(IPVK_IndirectCallTarget) << "\n";
+
+ if (ShowCounts) {
+ OS << " Block counts: [";
+ for (size_t I = 1, E = Func.Counts.size(); I < E; ++I) {
+ OS << (I == 1 ? "" : ", ") << Func.Counts[I];
+ }
+ OS << "]\n";
+ }
+
+ if (ShowIndirectCallTargets) {
+ InstrProfSymtab &Symtab = Reader->getSymtab();
+ uint32_t NS = Func.getNumValueSites(IPVK_IndirectCallTarget);
+ OS << " Indirect Target Results: \n";
+ for (size_t I = 0; I < NS; ++I) {
+ uint32_t NV = Func.getNumValueDataForSite(IPVK_IndirectCallTarget, I);
+ std::unique_ptr<InstrProfValueData[]> VD =
+ Func.getValueForSite(IPVK_IndirectCallTarget, I);
+ for (uint32_t V = 0; V < NV; V++) {
+ OS << "\t[ " << I << ", ";
+ OS << Symtab.getFuncName(VD[V].Value) << ", " << VD[V].Count
+ << " ]\n";
+ }
+ }
+ }
+ }
+ }
+
+ if (Reader->hasError())
+ exitWithErrorCode(Reader->getError(), Filename);
+
+ if (ShowCounts && TextFormat)
+ return 0;
+
+ 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;
+}
+
+static int showSampleProfile(std::string Filename, bool ShowCounts,
+ bool ShowAllFunctions, std::string ShowFunction,
+ raw_fd_ostream &OS) {
+ using namespace sampleprof;
+ auto ReaderOrErr = SampleProfileReader::create(Filename, getGlobalContext());
+ if (std::error_code EC = ReaderOrErr.getError())
+ exitWithErrorCode(EC, Filename);
+
+ auto Reader = std::move(ReaderOrErr.get());
+ if (std::error_code EC = Reader->read())
+ exitWithErrorCode(EC, Filename);
+
+ if (ShowAllFunctions || ShowFunction.empty())
+ Reader->dump(OS);
+ else
+ Reader->dumpFunctionProfile(ShowFunction, OS);
+
+ return 0;
+}
+
+static 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> TextFormat(
+ "text", cl::init(false),
+ cl::desc("Show instr profile data in text dump format"));
+ cl::opt<bool> ShowIndirectCallTargets(
+ "ic-targets", cl::init(false),
+ cl::desc("Show indirect call site target 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::opt<ProfileKinds> ProfileKind(
+ cl::desc("Profile kind:"), cl::init(instr),
+ cl::values(clEnumVal(instr, "Instrumentation profile (default)"),
+ clEnumVal(sample, "Sample profile"), clEnumValEnd));
+
+ cl::ParseCommandLineOptions(argc, argv, "LLVM profile data summary\n");
+
+ if (OutputFilename.empty())
+ OutputFilename = "-";
+
+ std::error_code EC;
+ raw_fd_ostream OS(OutputFilename.data(), EC, sys::fs::F_Text);
+ if (EC)
+ exitWithErrorCode(EC, OutputFilename);
+
+ if (ShowAllFunctions && !ShowFunction.empty())
+ errs() << "warning: -function argument ignored: showing all functions\n";
+
+ if (ProfileKind == instr)
+ return showInstrProfile(Filename, ShowCounts, ShowIndirectCallTargets,
+ ShowAllFunctions, ShowFunction, TextFormat, OS);
+ else
+ return showSampleProfile(Filename, ShowCounts, ShowAllFunctions,
+ ShowFunction, OS);
+}
+
+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;
+}
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