[Mlir-commits] [flang] [mlir] [mlir] Support DialectRegistry extension comparison (PR #101119)

[River Riddle]

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@@ -255,7 +256,9 @@ class DialectRegistry {
 
 private:
   MapTy registry;
-  std::vector<std::unique_ptr<DialectExtensionBase>> extensions;
+  using KeyExtensionPair =
+      std::pair<TypeID, std::unique_ptr<DialectExtensionBase>>;
+  llvm::SmallVector<KeyExtensionPair> extensions;
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River707 wrote:

You can't use a DenseMap here, that will make iteration order non-deterministic, this could be a MapVector though (which still gives you random access via the begin() iterator).

https://github.com/llvm/llvm-project/pull/101119