add utest for intel_sub_group_shuffle

v2: correct kernel to be suitable for simd_width both 8 and 16
Signed-off-by: Guo Yejun <yejun.guo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@intel.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/kernels/compiler_sub_group_shuffle.cl b/kernels/compiler_sub_group_shuffle.cl
new file mode 100644
index 00000000..75adde3c
--- /dev/null
+++ b/kernels/compiler_sub_group_shuffle.cl
@@ -0,0 +1,18 @@
+__kernel void compiler_sub_group_shuffle(global int *dst, int c)
+{
+  int i = get_global_id(0);
+  if (i == 0)
+    dst[0] = get_sub_group_size();
+  dst++;
+
+  int from = i;
+  int j = get_sub_group_size() - get_sub_group_id() - 1;
+  int o0 = get_sub_group_id();
+  int o1 = intel_sub_group_shuffle(from, c);
+  int o2 = intel_sub_group_shuffle(from, 5);
+  int o3 = intel_sub_group_shuffle(from, j);
+  dst[i*4] = o0;
+  dst[i*4+1] = o1;
+  dst[i*4+2] = o2;
+  dst[i*4+3] = o3;
+}