[Mlir-commits] [mlir] Fix block merging (PR #96871)

[Giuseppe Rossini]

giuseros wrote:

Hi @Mogball , thanks for the comment! I added a test case and fixed `mlir/test/Transforms/canonicalize-block-merge.mlir` . 

The test case I added is a simplification of the one you proposed [here](https://github.com/llvm/llvm-project/issues/63230). The point is that in Triton we meet exactly this case, and indeed we end up hanging the compiler. 

https://github.com/llvm/llvm-project/pull/96871