[Mlir-commits] [mlir] [mlir][SCFToSPIRV] Fix iter_args returning undef on zero trip scf.for (PR #206280)

[Igor Wodiany]

https://github.com/IgWod approved this pull request.

LGTM, although I'm not familiar with the `scf` conversion to tell whether it's a desired behaviour, but it makes a lot of sense to do this this way when compared to loading undefs.

https://github.com/llvm/llvm-project/pull/206280