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426c7606ff
This adds support for an indexed instrumentation based profiling format, which is just a small header and an on disk hash table. This format will be used by clang's -fprofile-instr-use= for PGO. llvm-svn: 206656
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
//=-- InstrProf.h - Instrumented profiling format support ---------*- C++ -*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Instrumentation-based profiling data is generated by instrumented
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// binaries through library functions in compiler-rt, and read by the clang
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// frontend to feed PGO.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_PROFILEDATA_INSTRPROF_H_
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#define LLVM_PROFILEDATA_INSTRPROF_H_
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#include "llvm/Support/system_error.h"
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namespace llvm {
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const error_category &instrprof_category();
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struct instrprof_error {
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enum ErrorType {
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success = 0,
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eof,
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bad_magic,
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bad_header,
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unsupported_version,
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unsupported_hash_type,
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too_large,
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truncated,
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malformed,
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unknown_function,
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hash_mismatch,
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count_mismatch,
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counter_overflow
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};
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ErrorType V;
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instrprof_error(ErrorType V) : V(V) {}
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operator ErrorType() const { return V; }
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};
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inline error_code make_error_code(instrprof_error E) {
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return error_code(static_cast<int>(E), instrprof_category());
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}
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template <> struct is_error_code_enum<instrprof_error> : std::true_type {};
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template <> struct is_error_code_enum<instrprof_error::ErrorType>
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: std::true_type {};
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} // end namespace llvm
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#endif // LLVM_PROFILEDATA_INSTRPROF_H_
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