1 //=-- InstrProf.cpp - Instrumented 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 support for clang's instrumentation based PGO and 11 // coverage. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #include "llvm/ProfileData/InstrProf.h" 16 #include "llvm/Support/ErrorHandling.h" 17 18 using namespace llvm; 19 20 namespace { 21 class InstrProfErrorCategoryType : public std::error_category { name() const22 const char *name() const LLVM_NOEXCEPT override { return "llvm.instrprof"; } message(int IE) const23 std::string message(int IE) const override { 24 instrprof_error E = static_cast<instrprof_error>(IE); 25 switch (E) { 26 case instrprof_error::success: 27 return "Success"; 28 case instrprof_error::eof: 29 return "End of File"; 30 case instrprof_error::bad_magic: 31 return "Invalid file format (bad magic)"; 32 case instrprof_error::bad_header: 33 return "Invalid header"; 34 case instrprof_error::unsupported_version: 35 return "Unsupported format version"; 36 case instrprof_error::unsupported_hash_type: 37 return "Unsupported hash function"; 38 case instrprof_error::too_large: 39 return "Too much profile data"; 40 case instrprof_error::truncated: 41 return "Truncated profile data"; 42 case instrprof_error::malformed: 43 return "Malformed profile data"; 44 case instrprof_error::unknown_function: 45 return "No profile data available for function"; 46 case instrprof_error::hash_mismatch: 47 return "Function hash mismatch"; 48 case instrprof_error::count_mismatch: 49 return "Function count mismatch"; 50 case instrprof_error::counter_overflow: 51 return "Counter overflow"; 52 } 53 llvm_unreachable("A value of instrprof_error has no message."); 54 } 55 }; 56 } 57 instrprof_category()58const std::error_category &llvm::instrprof_category() { 59 static InstrProfErrorCategoryType C; 60 return C; 61 } 62