[Mlir-commits] [mlir] [mlir] Optimize `isOpTriviallyDead` greedy rewriter checks for deeply nested IR (PR #231423)

[Mehdi Amini]

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@@ -731,6 +745,7 @@ void GreedyPatternRewriteDriver::addOperandsToWorklist(Operation *op) {
 }
 
 void GreedyPatternRewriteDriver::notifyOperationErased(Operation *op) {
+  deadnessCache.invalidate(op);
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joker-eph wrote:

Something I did in https://github.com/llvm/llvm-project/pull/225814 was to extract the cache in a separate listener to isolate the logic instead of mixing it with the driver. What would it look like here? 

https://github.com/llvm/llvm-project/pull/231423