[Mlir-commits] [mlir] [mlir][dataflow] Update dataflow tutorial doc and add dataflow example code (PR #149296)

[Mehdi Amini]

================
@@ -129,18 +111,28 @@ struct MetadataLatticeValue {
   bool operator==(const MetadataLatticeValue &rhs) const {
     if (metadata.size() != rhs.metadata.size())
       return false;
+
     // Check that `rhs` contains the same metadata.
-    for (const auto &it : metadata) {
-      auto rhsIt = rhs.metadata.find(it.first);
-      if (rhsIt == rhs.metadata.end() || it.second != rhsIt.second)
+    for (auto &&it : metadata) {
----------------
joker-eph wrote:

(Discussed in the implementation, resolving here to not duplicate)

https://github.com/llvm/llvm-project/pull/149296