[Mlir-commits] [mlir] [mlir][GPU] Fixes subgroup reduce lowering (PR #141825)

[Prashant Kumar]

pashu123 wrote:

> Fixes issues with subgroup reduce lowering producing erroneous results.
> 
> Aligning more closely with triton implementation : [triton-lang/triton#5019](https://github.com/triton-lang/triton/pull/5019)

Please explain what types of erroneous results can occur, providing an example.

https://github.com/llvm/llvm-project/pull/141825