SampleProf.cpp revision 277718 
1//=-- SampleProf.cpp - Sample profiling format support --------------------===//
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// This file contains common definitions used in the reading and writing of
11// sample profile data.
12//
13//===----------------------------------------------------------------------===//
14
15#include "llvm/ProfileData/SampleProf.h"
16#include "llvm/Support/ErrorHandling.h"
17#include "llvm/Support/ManagedStatic.h"
18
19using namespace llvm;
20
21namespace {
22class SampleProfErrorCategoryType : public std::error_category {
23  const char *name() const LLVM_NOEXCEPT override { return "llvm.sampleprof"; }
24  std::string message(int IE) const override {
25    sampleprof_error E = static_cast<sampleprof_error>(IE);
26    switch (E) {
27    case sampleprof_error::success:
28      return "Success";
29    case sampleprof_error::bad_magic:
30      return "Invalid file format (bad magic)";
31    case sampleprof_error::unsupported_version:
32      return "Unsupported format version";
33    case sampleprof_error::too_large:
34      return "Too much profile data";
35    case sampleprof_error::truncated:
36      return "Truncated profile data";
37    case sampleprof_error::malformed:
38      return "Malformed profile data";
39    case sampleprof_error::unrecognized_format:
40      return "Unrecognized profile encoding format";
41    }
42    llvm_unreachable("A value of sampleprof_error has no message.");
43  }
44};
45}
46
47static ManagedStatic<SampleProfErrorCategoryType> ErrorCategory;
48
49const std::error_category &llvm::sampleprof_category() {
50  return *ErrorCategory;
51}
52