message: Fix opt build.
diff: @@ -26,6 +26,7 @@ static SmallVector<IndexHandle, 8> getMemRefSizes(Value *memRef) {
  MemRefType memRefType = memRef->getType().cast<MemRefType>();
  auto maps = memRefType.getAffineMaps();
  + (void)maps;
  assert((maps.empty() || (maps.size() == 1 && maps[0].isIdentity())) &&
  "Layout maps not supported");
  SmallVector<IndexHandle, 8> res;
  