Tom Eccles dea33c80d3 [mlir][Transforms] teach CSE about recursive memory effects ...

Add support for reasoning about operations with recursive memory effects
to CSE. The recursive effects are gathered by a helper function. I
decided to allow returning duplicates from the helper function because
there's no benefit to spending the computation time to remove them in
the existing use case.

Differential Revision: https://reviews.llvm.org/D156805

2023-08-10 09:40:01 +00:00

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