[Beignet] [PATCH 3/3] utest: add generic pointer test

[Ruiling Song]

Signed-off-by: Ruiling Song <ruiling.song at intel.com>
---
 kernels/compiler_generic_pointer.cl | 33 ++++++++++++++++++++++++++
 utests/CMakeLists.txt               |  1 +
 utests/compiler_generic_pointer.cpp | 46 +++++++++++++++++++++++++++++++++++++
 3 files changed, 80 insertions(+)
 create mode 100644 kernels/compiler_generic_pointer.cl
 create mode 100644 utests/compiler_generic_pointer.cpp

diff --git a/kernels/compiler_generic_pointer.cl b/kernels/compiler_generic_pointer.cl
new file mode 100644
index 0000000..a06b192
--- /dev/null
+++ b/kernels/compiler_generic_pointer.cl
@@ -0,0 +1,33 @@
+#define GENERIC_KERNEL(T)                                              \
+kernel void compiler_generic_pointer_##T(global T *src, global T *dst) \
+{                                                                      \
+  size_t gid = get_global_id(0);                                       \
+  size_t lid = get_local_id(0);                                        \
+  private T pdata[16];                                                 \
+  local T ldata[16];                                                   \
+  generic T * p1 = &pdata[lid];                                        \
+  generic T * p2 = &ldata[lid];                                        \
+  generic T *p = (gid & 1) ? p1 : p2;                                  \
+  /* below expression is not supported by clang now   */               \
+  /* generic T *p = (gid & 1) ? p1 : (T *)&ldata[lid]; */              \
+  *p = src[gid];                                                       \
+  /* fill other data */                                                \
+  if(gid&1) {                                                          \
+    ldata[lid] = 20;                                                   \
+  } else {                                                             \
+    for (int i = 0; i < 16; i++) {                                     \
+      pdata[i] = src[lid];;                                            \
+    }                                                                  \
+  }                                                                    \
+  barrier(CLK_LOCAL_MEM_FENCE);                                        \
+                                                                       \
+  generic T * q1 = &pdata[lid];                                        \
+  generic T * q2 = &ldata[lid];                                        \
+  generic T *q = (gid & 1) ? q1 : q2;                                  \
+  dst[gid] = *q + pdata[lid];                                          \
+}
+
+GENERIC_KERNEL(int)
+GENERIC_KERNEL(char)
+GENERIC_KERNEL(short)
+GENERIC_KERNEL(long)
diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
index 18337fa..624054e 100644
--- a/utests/CMakeLists.txt
+++ b/utests/CMakeLists.txt
@@ -78,6 +78,7 @@ set (utests_sources
   compiler_global_constant.cpp
   compiler_global_constant_2.cpp
   compiler_group_size.cpp
+  compiler_generic_pointer.cpp
   compiler_hadd.cpp
   compiler_if_else.cpp
   compiler_integer_division.cpp
diff --git a/utests/compiler_generic_pointer.cpp b/utests/compiler_generic_pointer.cpp
new file mode 100644
index 0000000..5984694
--- /dev/null
+++ b/utests/compiler_generic_pointer.cpp
@@ -0,0 +1,46 @@
+#include "utest_helper.hpp"
+
+template<typename T>
+void test(const char* kernelName)
+{
+  const int n = 16;
+  T cpu_src[16];
+
+  // Setup kernel and buffers
+  OCL_CALL(cl_kernel_init, "compiler_generic_pointer.cl", kernelName, SOURCE, "-cl-std=CL2.0");
+  OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(T), NULL);
+  OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(T), NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+  globals[0] = 16;
+  locals[0] = 16;
+
+  OCL_MAP_BUFFER(0);
+  for (int i = 0; i <  n; ++i)
+    cpu_src[i] = ((T*)buf_data[0])[i] = (T)i;
+  OCL_UNMAP_BUFFER(0);
+
+  // Run the kernel on GPU
+  OCL_NDRANGE(1);
+
+  // Compare
+  OCL_MAP_BUFFER(1);
+  for (int32_t i = 0; i < n; ++i) {
+//    printf("i=%d dst=%d\n", i, ((T*)buf_data[1])[i]);
+    OCL_ASSERT(((T*)buf_data[1])[i] == 2 * cpu_src[i]);
+  }
+  OCL_UNMAP_BUFFER(1);
+}
+
+#define GENERIC_TEST(T)                    \
+void compiler_generic_pointer_##T() {      \
+  test<T>("compiler_generic_pointer_"#T); \
+} \
+MAKE_UTEST_FROM_FUNCTION(compiler_generic_pointer_##T);
+
+GENERIC_TEST(int)
+GENERIC_TEST(char)
+GENERIC_TEST(short)
+GENERIC_TEST(long)
+
+
-- 
2.4.1