llvm-6502/lib/ProfileData/SampleProf.cpp
Diego Novillo 9657de5f22 Add show and merge tools for sample PGO profiles.
Summary:
This patch extends the 'show' and 'merge' commands in llvm-profdata to handle
sample PGO formats. Using the 'merge' command it is now possible to convert
one sample PGO format to another.

The only format that is currently not working is 'gcc'. I still need to
implement support for it in lib/ProfileData.

The changes in the sample profile support classes are needed for the
merge operation.

Reviewers: bogner

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6065

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221032 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-01 00:56:55 +00:00

52 lines
1.7 KiB
C++

//=-- 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;
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";
}
llvm_unreachable("A value of sampleprof_error has no message.");
}
};
}
static ManagedStatic<SampleProfErrorCategoryType> ErrorCategory;
const std::error_category &llvm::sampleprof_category() {
return *ErrorCategory;
}