[PATCH 36/40] openacc: Enable reduction variable localization for "kernels"

[Frederik Harwath]

gcc/ChangeLog:

        * gimplify.c (gimplify_omp_for): Enable localization on
        "kernels" regions.
        (gimplify_omp_workshare): Likewise.
---
 gcc/gimplify.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/gcc/gimplify.c b/gcc/gimplify.c
index bf37388f947c..a0137089496b 100644
--- a/gcc/gimplify.c
+++ b/gcc/gimplify.c
@@ -12229,11 +12229,9 @@ gimplify_omp_for (tree *expr_p, gimple_seq *pre_p)
             && outer->region_type != ORT_ACC_KERNELS)
        outer = outer->outer_context;

-      /* FIXME: Reductions only work in parallel regions at present.  We avoid
-        doing the reduction localization transformation in kernels regions
-        here, because the code to remove reductions in kernels regions cannot
-        handle that.  */
-      if (outer && outer->region_type == ORT_ACC_PARALLEL)
+      if (outer && (outer->region_type == ORT_ACC_PARALLEL
+                   || (outer->region_type == ORT_ACC_KERNELS
+                       && param_openacc_kernels == OPENACC_KERNELS_DECOMPOSE)))
        localize_reductions (OMP_FOR_CLAUSES (for_stmt),
                             OMP_FOR_BODY (for_stmt));
     }
@@ -13767,8 +13765,9 @@ gimplify_omp_workshare (tree *expr_p, gimple_seq *pre_p)
     {
       push_gimplify_context ();

-      /* FIXME: Reductions are not supported in kernels regions yet.  */
-      if (/*ort == ORT_ACC_KERNELS ||*/ ort == ORT_ACC_PARALLEL)
+      if (ort == ORT_ACC_PARALLEL
+          || (ort == ORT_ACC_KERNELS
+              && param_openacc_kernels == OPENACC_KERNELS_DECOMPOSE))
         localize_reductions (OMP_CLAUSES (expr), OMP_BODY (expr));

       gimple *g = gimplify_and_return_first (OMP_BODY (expr), &body);
--
2.33.0

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