[llvm-branch-commits] [flang] [mlir] [flang][OpenMP] Lower target in_reduction for host fallback (PR #199967)

[Sairudra More via llvm-branch-commits]

Saieiei wrote:

Thanks @skatrak  this makes sense. I’ll first clean up the mechanical issues you pointed out.
For the representation question, my current implementation followed the existing task/taskloop in_reduction block-arg pattern, but I see why target is different from the device perspective since the mapped value is what the device body should naturally use. I’ll look into whether target in_reduction should instead be modeled through the map entry block argument and keep the extra reduction handling host-side only.

https://github.com/llvm/llvm-project/pull/199967