Utset: Add test case for cl_intel_required_subgroup_size extension

Check the device supported subgroup sizes, and use
intel_reqd_sub_group_size to build kernels in these size. Then check if
there is spill for each kernel.
V2: Fix memory leak

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

1 files changed, 20 insertions, 0 deletions

diff --git a/utests/utest_helper.cpp b/utests/utest_helper.cpp
index f4487c13..2e826bc6 100644
--- a/utests/utest_helper.cpp
+++ b/utests/utest_helper.cpp
@@ -1139,3 +1139,23 @@ float as_float(uint32_t i)
   _tmp._uint = i;
   return _tmp._float;
 }
+
+int cl_check_reqd_subgroup(void)
+{
+  if (!cl_check_subgroups())
+    return 0;
+  std::string extStr;
+  size_t param_value_size;
+  OCL_CALL(clGetDeviceInfo, device, CL_DEVICE_EXTENSIONS, 0, 0, &param_value_size);
+  std::vector<char> param_value(param_value_size);
+  OCL_CALL(clGetDeviceInfo, device, CL_DEVICE_EXTENSIONS, param_value_size,
+           param_value.empty() ? NULL : &param_value.front(), &param_value_size);
+  if (!param_value.empty())
+    extStr = std::string(&param_value.front(), param_value_size-1);
+
+  if (std::strstr(extStr.c_str(), "cl_intel_required_subgroup_size") == NULL) {
+    printf("No cl_intel_required_subgroup_size, Skip!");
+    return 0;
+  }
+  return 1;
+}