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, 46 insertions, 0 deletions

diff --git a/utests/compiler_reqd_sub_group_size.cpp b/utests/compiler_reqd_sub_group_size.cpp
new file mode 100644
index 00000000..37d96fe5
--- /dev/null
+++ b/utests/compiler_reqd_sub_group_size.cpp
@@ -0,0 +1,46 @@
+#include "utest_helper.hpp"
+#include<string>
+#include<sstream>
+#include<iostream>
+
+using namespace std;
+
+void compiler_reqd_sub_group_size(void)
+{
+  if (!cl_check_reqd_subgroup())
+    return;
+
+  size_t param_value_size;
+  OCL_CALL(clGetDeviceInfo, device, CL_DEVICE_SUB_GROUP_SIZES_INTEL,
+           0, NULL, &param_value_size);
+
+  size_t* param_value = new size_t[param_value_size];
+  OCL_CALL(clGetDeviceInfo, device, CL_DEVICE_SUB_GROUP_SIZES_INTEL,
+           param_value_size, param_value, NULL);
+
+  const char* opt = "-D SIMD_SIZE=";
+  for( uint32_t i = 0; i < param_value_size / sizeof(size_t) ; ++i)
+  {
+    ostringstream ss;
+    uint32_t simd_size = param_value[i];
+    ss << opt << simd_size;
+    //cout << "options: " << ss.str() << endl;
+    OCL_CALL(cl_kernel_init, "compiler_reqd_sub_group_size.cl", "compiler_reqd_sub_group_size",
+                             SOURCE, ss.str().c_str());
+    size_t SIMD_SIZE = 0;
+    OCL_CALL(utestclGetKernelSubGroupInfoKHR,kernel,device, CL_KERNEL_COMPILE_SUB_GROUP_SIZE_INTEL,0, NULL,sizeof(size_t),&SIMD_SIZE,NULL);
+    //cout << SIMD_SIZE << " with " << simd_size << endl;
+    OCL_ASSERT(SIMD_SIZE == simd_size);
+
+    cl_ulong SPILL_SIZE = 0xFFFFFFFF;
+    OCL_CALL(clGetKernelWorkGroupInfo, kernel, device, CL_KERNEL_SPILL_MEM_SIZE_INTEL, sizeof(cl_ulong), &SPILL_SIZE, NULL);
+    //cout << "spill size: " << SPILL_SIZE << endl;
+    OCL_ASSERT(SPILL_SIZE == 0);
+
+    clReleaseProgram(program);
+    program = NULL;
+  }
+  delete[] param_value;
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_reqd_sub_group_size);