[Beignet] [Beignet 3/3] Add constant buffer test case.

[Yang Rong]

Signed-off-by: Yang Rong <rong.r.yang at intel.com>
---
 kernels/compiler_function_constant.cl |    7 +++++++
 utests/CMakeLists.txt                 |    1 +
 utests/compiler_function_constant.cpp |   34 +++++++++++++++++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 kernels/compiler_function_constant.cl
 create mode 100644 utests/compiler_function_constant.cpp

diff --git a/kernels/compiler_function_constant.cl b/kernels/compiler_function_constant.cl
new file mode 100644
index 0000000..7764ac9
--- /dev/null
+++ b/kernels/compiler_function_constant.cl
@@ -0,0 +1,7 @@
+__kernel void
+compiler_function_constant(__constant short *c, __global int *dst, int value)
+{
+  int id = (int)get_global_id(0);
+  dst[id] = value + c[id%69];
+}
+
diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
index bed0159..d94579c 100644
--- a/utests/CMakeLists.txt
+++ b/utests/CMakeLists.txt
@@ -29,6 +29,7 @@ set (utests_sources
   compiler_function_argument0.cpp
   compiler_function_argument1.cpp
   compiler_function_argument.cpp
+  compiler_function_constant.cpp
   compiler_if_else.cpp
   compiler_integer_division.cpp
   compiler_integer_remainder.cpp
diff --git a/utests/compiler_function_constant.cpp b/utests/compiler_function_constant.cpp
new file mode 100644
index 0000000..597ee41
--- /dev/null
+++ b/utests/compiler_function_constant.cpp
@@ -0,0 +1,34 @@
+#include "utest_helper.hpp"
+
+void compiler_function_constant(void)
+{
+  const size_t n = 2048;
+  const int value = 34;
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL("compiler_function_constant");
+  OCL_CREATE_BUFFER(buf[0], 0, 75 * sizeof(short), NULL);
+  OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(uint32_t), NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+  OCL_SET_ARG(2, sizeof(int), &value);
+
+  OCL_MAP_BUFFER(0);
+  for(uint32_t i = 0; i < 69; ++i)
+    ((short *)buf_data[0])[i] = i;
+  OCL_UNMAP_BUFFER(0);
+  
+  // Run the kernel
+  globals[0] = n;
+  locals[0] = 16;
+  OCL_NDRANGE(1);
+  OCL_MAP_BUFFER(1);
+
+  // Check results
+  for (uint32_t i = 0; i < n; ++i)
+    OCL_ASSERT(((int*)buf_data[1])[i] == (value + i%69));
+
+  OCL_UNMAP_BUFFER(1);
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_function_constant);
-- 
1.7.9.5