PVS-Studio warning V523 for Clang

static bool CollectBSwapParts(....)
{
  ...
  unsigned DestByteNo = InputByteNo + OverallLeftShift;
  if (InputByteNo < ByteValues.size()/2) {
    if (ByteValues.size()-1-DestByteNo != InputByteNo)
      return true;
  } else {
    if (ByteValues.size()-1-DestByteNo != InputByteNo)
      return true;
  }
  ...
}

This suspicious code was found in Clang project by PVS-Studio static code analyzer.
Warning message is:
V523 The 'then' statement is equivalent to the 'else' statement. LLVMInstCombine instcombineandorxor.cpp 1368

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