add built-in function "tgamma"

also include a test case

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/kernels/builtin_tgamma.cl b/kernels/builtin_tgamma.cl
new file mode 100644
index 00000000..1f7abc30
--- /dev/null
+++ b/kernels/builtin_tgamma.cl
@@ -0,0 +1,4 @@
+kernel void builtin_tgamma(global float *src, global float *dst) {
+  int i = get_global_id(0);
+  dst[i] = tgamma(src[i]);
+};