1 //=-- SampleProf.cpp - Sample profiling format support --------------------===//
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 // This file contains common definitions used in the reading and writing of
11 // sample profile data.
13 //===----------------------------------------------------------------------===//
15 #include "llvm/ProfileData/SampleProf.h"
16 #include "llvm/Support/ErrorHandling.h"
17 #include "llvm/Support/ManagedStatic.h"
19 using namespace llvm::sampleprof;
23 class SampleProfErrorCategoryType : public std::error_category {
24 const char *name() const LLVM_NOEXCEPT override { return "llvm.sampleprof"; }
25 std::string message(int IE) const override {
26 sampleprof_error E = static_cast<sampleprof_error>(IE);
28 case sampleprof_error::success:
30 case sampleprof_error::bad_magic:
31 return "Invalid sample profile data (bad magic)";
32 case sampleprof_error::unsupported_version:
33 return "Unsupported sample profile format version";
34 case sampleprof_error::too_large:
35 return "Too much profile data";
36 case sampleprof_error::truncated:
37 return "Truncated profile data";
38 case sampleprof_error::malformed:
39 return "Malformed sample profile data";
40 case sampleprof_error::unrecognized_format:
41 return "Unrecognized sample profile encoding format";
42 case sampleprof_error::unsupported_writing_format:
43 return "Profile encoding format unsupported for writing operations";
44 case sampleprof_error::truncated_name_table:
45 return "Truncated function name table";
46 case sampleprof_error::not_implemented:
47 return "Unimplemented feature";
49 llvm_unreachable("A value of sampleprof_error has no message.");
54 static ManagedStatic<SampleProfErrorCategoryType> ErrorCategory;
56 const std::error_category &llvm::sampleprof_category() {
57 return *ErrorCategory;
60 /// \brief Print the sample record to the stream \p OS indented by \p Indent.
61 void SampleRecord::print(raw_ostream &OS, unsigned Indent) const {
65 for (const auto &I : getCallTargets())
66 OS << " " << I.first() << ":" << I.second;
71 /// \brief Print the samples collected for a function on stream \p OS.
72 void FunctionSamples::print(raw_ostream &OS, unsigned Indent) const {
73 OS << TotalSamples << ", " << TotalHeadSamples << ", " << BodySamples.size()
74 << " sampled lines\n";
76 for (const auto &SI : BodySamples) {
78 OS << SI.first << ": " << SI.second;
81 for (const auto &CS : CallsiteSamples) {
83 OS << CS.first << ": ";
84 CS.second.print(OS, Indent + 2);