Utest: Add check for cl_intel_subgroups extension tests

These tests can only run with cl_intel_subgroups extension, add check
before runing the tests. Also refine the call of the extension API with
function pointer.
V2: Use clGetExtensionFunctionAddress to get extension API function

Signed-off-by: Pan Xiuli <xiuli.pan@intel.com>
Reviewed-by: Yang Rong <rong.r.yang@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/utests/builtin_sub_group_size.cpp b/utests/builtin_sub_group_size.cpp
index 1dc24edb..7f7c3e46 100644
--- a/utests/builtin_sub_group_size.cpp
+++ b/utests/builtin_sub_group_size.cpp
@@ -13,6 +13,8 @@ Now define local and global size as following:
 #include "utest_helper.hpp"
 static void builtin_sub_group_size(void)
 {
+  if(!cl_check_subgroups())
+    return;
 
   // Setup kernel and buffers
   size_t dim, i,local_sz = 1,buf_len = 1;
@@ -40,7 +42,7 @@ static void builtin_sub_group_size(void)
       locals[i - 1] = 0;
     }
 
-    OCL_CALL(clGetKernelSubGroupInfoKHR,kernel,device,CL_KERNEL_MAX_SUB_GROUP_SIZE_FOR_NDRANGE_KHR,sizeof(size_t)*dim,locals,sizeof(size_t),&max_sub_sz,NULL);
+    OCL_CALL(utestclGetKernelSubGroupInfoKHR,kernel,device,CL_KERNEL_MAX_SUB_GROUP_SIZE_FOR_NDRANGE_KHR,sizeof(size_t)*dim,locals,sizeof(size_t),&max_sub_sz,NULL);
     // Run the kernel
     OCL_NDRANGE( dim );
     clFinish(queue);