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