RtlUpcaseUnicodeString

NTSTATUS __stdcall RtlUpcaseUnicodeString(
        _UNICODE_STRING *DestinationString,
        _UNICODE_STRING *SourceString,
        UINT8 AllocateDestinationString){
  UINT64 Length; 
  __int64 i; 
  unsigned __int64 v7; 
  wchar_t *StringRoutine; 

  Length = SourceString->Length;
  if( AllocateDestinationString )
  {
    DestinationString->MaximumLength = Length;
    StringRoutine = (wchar_t *)ExpAllocateStringRoutine(Length);
    DestinationString->Buffer = StringRoutine;
    if( !StringRoutine )
      return -1073741801;
    LOWORD(Length) = SourceString->Length;
  }
  else if( (unsigned __int16)Length > DestinationString->MaximumLength )
  {
    return -2147483643;
  }
  for( i = 0i64; (unsigned int)i < (unsigned __int16)Length >> 1; i = (unsigned int)(i + 1) )
  {
    v7 = SourceString->Buffer[i];
    if( (unsigned int)v7 >= 0x61 )
    {
      if( (unsigned int)v7 > 0x7A )
      {
        if( Nls844UnicodeUpcaseTable )
        {
          if( (unsigned __int16)v7 >= 0xC0u )
            LOWORD(v7) = *(_WORD *)(Nls844UnicodeUpcaseTable
                                  + 2
                                  * ((v7 & 0xF)
                                   + *(unsigned __int16 *)(Nls844UnicodeUpcaseTable
                                                         + 2i64
                                                         * (((unsigned __int8)v7 >> 4)
                                                          + (unsigned int)*(unsigned __int16 *)(Nls844UnicodeUpcaseTable
                                                                                              + 2 * (v7 >> 8))))))
                       + v7;
        }
      }
      else
      {
        LOWORD(v7) = v7 - 32;
      }
    }
    DestinationString->Buffer[i] = v7;
  }
  DestinationString->Length = SourceString->Length;
  return 0;
}

Referenced by:

AslStringUpcaseToMultiByteN
IoReportDetectedDevice
PfCalculateProcessHash
PfSnLogStreamCreate
PfSnLogVolumeCreate
PiCMGenerateDeviceInstance
PiCMOpenClassKey
PiDevCfgResolveVariableGenerateGuid
PipInitComputerIds
PipMakeGloballyUniqueId
RtlDeriveCapabilitySidsFromName
SdbMakeIndexKeyFromStringEx
ViCreateProcessCallbackInternal
ViFaultsAddAppNoDuplicates