[Mlir-commits] [mlir] [mlir][dataflow] Fix for integer range analysis propagation bug (PR #93199)

[Spenser Bauman]

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@@ -27,6 +27,9 @@ namespace intrange {
 using InferRangeFn =
     function_ref<ConstantIntRanges(ArrayRef<ConstantIntRanges>)>;
 
+using OptionalRangeFn =
+    std::function<OptionalIntRanges(ArrayRef<OptionalIntRanges>)>;
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sabauma wrote:

I was a uncomfortable using `function-ref` since some functions return `OptionalRangeFn`.

https://github.com/llvm/llvm-project/pull/93199