forked from OSchip/llvm-project
90 lines
3.2 KiB
C++
90 lines
3.2 KiB
C++
//=-- SampleProf.cpp - Sample profiling format support --------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains common definitions used in the reading and writing of
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// sample profile data.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ProfileData/SampleProf.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/ManagedStatic.h"
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using namespace llvm::sampleprof;
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using namespace llvm;
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namespace {
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class SampleProfErrorCategoryType : public std::error_category {
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const char *name() const LLVM_NOEXCEPT override { return "llvm.sampleprof"; }
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std::string message(int IE) const override {
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sampleprof_error E = static_cast<sampleprof_error>(IE);
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switch (E) {
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case sampleprof_error::success:
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return "Success";
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case sampleprof_error::bad_magic:
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return "Invalid file format (bad magic)";
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case sampleprof_error::unsupported_version:
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return "Unsupported format version";
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case sampleprof_error::too_large:
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return "Too much profile data";
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case sampleprof_error::truncated:
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return "Truncated profile data";
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case sampleprof_error::malformed:
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return "Malformed profile data";
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case sampleprof_error::unrecognized_format:
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return "Unrecognized profile encoding format";
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case sampleprof_error::unsupported_writing_format:
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return "Profile encoding format unsupported for writing operations";
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case sampleprof_error::truncated_name_table:
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return "Truncated function name table";
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case sampleprof_error::not_implemented:
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return "Unimplemented feature";
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}
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llvm_unreachable("A value of sampleprof_error has no message.");
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}
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};
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}
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static ManagedStatic<SampleProfErrorCategoryType> ErrorCategory;
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const std::error_category &llvm::sampleprof_category() {
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return *ErrorCategory;
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}
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/// \brief Print the samples collected for a function on stream \p OS.
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///
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/// \param OS Stream to emit the output to.
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void FunctionSamples::print(raw_ostream &OS, unsigned Indent) const {
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OS << TotalSamples << ", " << TotalHeadSamples << ", " << BodySamples.size()
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<< " sampled lines\n";
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for (const auto &SI : BodySamples) {
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LineLocation Loc = SI.first;
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const SampleRecord &Sample = SI.second;
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OS.indent(Indent);
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OS << "line offset: " << Loc.LineOffset
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<< ", discriminator: " << Loc.Discriminator
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<< ", number of samples: " << Sample.getSamples();
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if (Sample.hasCalls()) {
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OS << ", calls:";
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for (const auto &I : Sample.getCallTargets())
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OS << " " << I.first() << ":" << I.second;
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}
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OS << "\n";
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}
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for (const auto &CS : CallsiteSamples) {
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CallsiteLocation Loc = CS.first;
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const FunctionSamples &CalleeSamples = CS.second;
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OS.indent(Indent);
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OS << "line offset: " << Loc.LineOffset
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<< ", discriminator: " << Loc.Discriminator
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<< ", inlined callee: " << Loc.CalleeName << ": ";
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CalleeSamples.print(OS, Indent + 2);
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}
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}
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