[llvm-branch-commits] [mlir] [mlir][OpenMP] Translate explicit task in_reduction (PR #202611)

[Sairudra More via llvm-branch-commits]

Saieiei wrote:

> Could you add a positive test where the omp.task in_reduction is actually nested inside an enclosing omp.taskgroup task_reduction?

@tblah added a nested case with explicit `omp.task in_reduction` inside an enclosing `omp.taskgroup task_reduction`.

The test checks that the enclosing taskgroup emits `__kmpc_taskred_init` / `__kmpc_taskgroup`, while the outlined task body only does `__kmpc_task_reduction_get_th_data(gtid, null, orig)`. It also checks that the task body uses the returned private pointer and does not register its own reduction.


https://github.com/llvm/llvm-project/pull/202611