PVS-Studio warning V610 for Wine

static HRESULT PROPVAR_ConvertNumber(....)
{
  ....
  if (*res >= ((LONGLONG)1 << (dest_bits-1)) ||
      *res < ((LONGLONG)-1 << (dest_bits-1)))
    return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
  ....
}

This suspicious code was found in Wine project by PVS-Studio static code analyzer.
Warning message is:
V610 Undefined behavior. Check the shift operator '<<. The left operand '(LONGLONG) - 1' is negative. propvar.c 127

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/