[Mlir-commits] [mlir] [MLIR] Fix ErasedOpsListener false positives for newly created ops/blocks (PR #188956)

[Matthias Springer]

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@@ -61,16 +62,38 @@ struct WalkAndApplyPatternsAction final
 // ops/blocks. Because we use walk-based pattern application, erasing the
 // op/block from the *next* iteration (e.g., a user of the visited op) is not
 // valid. Note that this is only used with expensive pattern API checks.
+//
+// Ops and blocks that were *created* during the current pattern application are
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matthias-springer wrote:

`during the current pattern application` --> `ErasedOpsListener::newlyCreatedOps` keeps track of newly created ops not just for the most recent pattern but across the entire walk.

https://github.com/llvm/llvm-project/pull/188956