140                     StringRef Prefix,
187                            StringRef Prefix,  in ParsePattern()  argument
204                     Prefix + ":'");  in ParsePattern()
621   StringRef Prefix;  member
636       : Pat(P), Prefix(S), Loc(L) {}  in CheckString()
731 static Check::CheckType FindCheckType(StringRef Buffer, StringRef Prefix) {  in FindCheckType()  argument
732   char NextChar = Buffer[Prefix.size()];  in FindCheckType()
741   StringRef Rest = Buffer.drop_front(Prefix.size() + 1);  in FindCheckType()
792   for (StringRef Prefix : CheckPrefixes) {  in FindFirstCandidateMatch()  local
793     size_t PrefixLoc = Buffer.find(Prefix);  in FindFirstCandidateMatch()
811     if (PrefixLoc == FirstLoc && Prefix.size() < FirstPrefix.size())  in FindFirstCandidateMatch()
821       FirstTy = FindCheckType(Rest, Prefix);  in FindFirstCandidateMatch()
824     FirstPrefix = Prefix;  in FindFirstCandidateMatch()
843     StringRef Prefix = FindFirstCandidateMatch(Buffer, CheckTy, CheckLoc);  in FindFirstMatchingPrefix()  local
845     if (!Prefix.empty()) {  in FindFirstMatchingPrefix()
847       return Prefix;  in FindFirstMatchingPrefix()
890     std::string Prefix = (Twine("-") + ImplicitCheckNot.ArgStr + "='").str();  in ReadCheckFile()  local
893         Prefix + PatternString + Suffix, "command line");  in ReadCheckFile()
896         CmdLine->getBuffer().substr(Prefix.size(), PatternString.size());  in ReadCheckFile()
1127     SM.PrintMessage(Loc, SourceMgr::DK_Error, Prefix +  in CheckNext()
1137     SM.PrintMessage(Loc, SourceMgr::DK_Error, Prefix +  in CheckNext()
1167                     Prefix +  in CheckSame()
1192                     Prefix + "-NOT: string occurred!");  in CheckNot()
1194                     Prefix + "-NOT: pattern specified here");  in CheckNot()
1241                         Prefix + "-DAG: found a match of CHECK-DAG"  in CheckDag()
1245                         Prefix + "-DAG: the farthest match of CHECK-DAG"  in CheckDag()
1248                         Prefix + "-NOT: the crossed pattern specified"  in CheckDag()
1251                         Prefix + "-DAG: the reordered pattern specified"  in CheckDag()
1284   for (StringRef Prefix : CheckPrefixes) {  in ValidateCheckPrefixes()  local
1286     if (Prefix == "")  in ValidateCheckPrefixes()
1289     if (!PrefixSet.insert(Prefix).second)  in ValidateCheckPrefixes()
1292     if (!ValidateCheckPrefix(Prefix))  in ValidateCheckPrefixes()