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//=-- InstrProf.cpp - Instrumented 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 support for clang's instrumentation based PGO and
// coverage.
//
//===----------------------------------------------------------------------===//
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
namespace {
class InstrProfErrorCategoryType : public error_category {
const char *name() const LLVM_NOEXCEPT override { return "llvm.instrprof"; }
std::string message(int IE) const override {
instrprof_error E = static_cast<instrprof_error>(IE);
switch (E) {
case instrprof_error::success:
return "Success";
case instrprof_error::eof:
return "End of File";
case instrprof_error::bad_magic:
return "Invalid file format (bad magic)";
case instrprof_error::bad_header:
return "Invalid header";
case instrprof_error::unsupported_version:
return "Unsupported format version";
case instrprof_error::unsupported_hash_type:
return "Unsupported hash function";
case instrprof_error::too_large:
return "Too much profile data";
case instrprof_error::truncated:
return "Truncated profile data";
case instrprof_error::malformed:
return "Malformed profile data";
case instrprof_error::unknown_function:
return "No profile data available for function";
case instrprof_error::hash_mismatch:
return "Function hash mismatch";
case instrprof_error::count_mismatch:
return "Function count mismatch";
case instrprof_error::counter_overflow:
return "Counter overflow";
}
llvm_unreachable("A value of instrprof_error has no message.");
}
error_condition default_error_condition(int EV) const LLVM_NOEXCEPT override {
if (static_cast<instrprof_error>(EV) == instrprof_error::success)
return error_condition();
return errc::invalid_argument;
}
};
}
const error_category &llvm::instrprof_category() {
static InstrProfErrorCategoryType C;
return C;
}
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