[Mlir-commits] [mlir] [mlir][rocdl] Add `readfirstlane` intrinsic (PR #152551)

[Krzysztof Drewniak]

https://github.com/krzysz00 approved this pull request.

We can fiddle with the exact traits later, but yeah, looks fine overall

https://github.com/llvm/llvm-project/pull/152551