message: Fix for getMemRefSizeInBytes: unsigned -> uint64_t
diff: @@ -322,7 +322,7 @@ Optional<uint64_t> mlir::getMemRefSizeInBytes(MemRefType memRefType) {
  if (!elementType.isIntOrFloat() && !elementType.isa<VectorType>())
  return None;
  - unsigned sizeInBytes = getMemRefEltSizeInBytes(memRefType);
  + uint64_t sizeInBytes = getMemRefEltSizeInBytes(memRefType);
  for (unsigned i = 0, e = memRefType.getRank(); i < e; i++) {
  sizeInBytes = sizeInBytes * memRefType.getDimSize(i);
  }
  