[Mlir-commits] [mlir] [mlir][scf] Fold away `scf.for` iter args cycles (PR #173436)

[Emilio Cota]

cota wrote:

Thanks for the patch! That change definitely is in the right direction -- some passes start passing. Unfortunately, quite a few B200 tests still time out:
```
//third_party/triton/python/test:regression/test_cast_matmul_b200
//third_party/triton/python/test:regression/test_functional_regressions_b200
//third_party/triton/python/test:unit/language/test_core_b200
//third_party/triton/python/test:unit/language/test_pipeliner_b200
//third_party/triton/python/test:unit/language/test_tensor_descriptor_b200
//third_party/triton/python/test:unit/language/test_warp_specialization_b200
//third_party/triton/python/test:unit/runtime/test_autotuner_b200
//third_party/triton/python/test:unit/tools/test_triton_to_gluon_b200
```
I'd be happy to provide IR for these if you want to dig deeper and don't have access to B200's. My availability though will be limited due to the holidays until Jan 5. My request to revert this CL to give everyone some time to look at this still stands. Thanks!

https://github.com/llvm/llvm-project/pull/173436