[Mlir-commits] [mlir] [mlir][Affine] Fix loadCSE replacing a load with one already scheduled for erasure (PR #217511)

[Federico Bruzzone]

================
@@ -1000,6 +1000,12 @@ static void loadCSE(AffineReadOpInterface loadA,
     if (loadB.getValue().getType() != loadA.getValue().getType())
       continue;
 
+    // loadB should not already be scheduled for erasure. Otherwise, loadA
+    // would end up being replaced with (and then erased along with) an
+    // operation that no longer exists.
----------------
FedericoBruzzone wrote:

```suggestion
    // loadB should not already be scheduled for erasure. Otherwise, loadA
    // would end up being replaced with an operation that no longer exists.
```

https://github.com/llvm/llvm-project/pull/217511