229   MemoryBufferRef mbref = mb->getMemBufferRef();  in readFile()  local
233   const char *buf = mbref.getBufferStart();  in readFile()
235   if (mbref.getBufferSize() < sizeof(uint32_t) ||  in readFile()
238       tar->append(relativeToRoot(path), mbref.getBuffer());  in readFile()
239     return cachedReads[key] = mbref;  in readFile()
255         buf + mbref.getBufferSize()) {  in readFile()
274     if (offset + size > mbref.getBufferSize())  in readFile()
277       tar->append(relativeToRoot(path), mbref.getBuffer());  in readFile()
1560   std::optional<MemoryBufferRef> mbref = readFile(path);  in loadDylib()  local
1561   if (!mbref) {  in loadDylib()
1565   return loadDylib(*mbref, umbrella);  in loadDylib()
2286   MemoryBufferRef mbref(mb.getBuffer(),  in BitcodeFile()  local
2292   obj = check(lto::InputFile::create(mbref));  in BitcodeFile()