[Beignet] [PATCH] utest: add test case for built-in function get_global_id.

[Yi Sun]

Signed-off-by: Yi Sun <yi.sun at intel.com>

diff --git a/kernels/builtin_global_id.cl b/kernels/builtin_global_id.cl
new file mode 100644
index 0000000..6a2957d
--- /dev/null
+++ b/kernels/builtin_global_id.cl
@@ -0,0 +1,4 @@
+kernel void builtin_global_id( __global int *ret, __global int *i_dim ) {
+  int id = get_global_id(0) + get_global_id(1)*3 + get_global_id(2)*3*4;
+  ret[id] = id;
+}
diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
index 1cdbd24..97d1506 100644
--- a/utests/CMakeLists.txt
+++ b/utests/CMakeLists.txt
@@ -104,6 +104,7 @@ set (utests_sources
   builtin_mad_sat.cpp
   buildin_work_dim.cpp
   builtin_global_size.cpp
+  builtin_global_id.cpp
   runtime_createcontext.cpp
   runtime_null_kernel_arg.cpp
   compiler_double.cpp
diff --git a/utests/builtin_global_id.cpp b/utests/builtin_global_id.cpp
new file mode 100644
index 0000000..27cb7af
--- /dev/null
+++ b/utests/builtin_global_id.cpp
@@ -0,0 +1,88 @@
+/*
+According to the OpenCL v1.1 & v1.2 chapter 6.11.
+Now define global size as following:
+  globals[0] = 3;
+  globals[1] = 4;
+  globals[2] = 5;
+
+Kernel:
+id = get_global_id(0) + get_global_id(1)*3 + get_global_id(2)*3*4
+
+dimension:1
+ 0  1  2
+dimension:2
+ 0  1  2
+ 3  4  5
+ 6  7  8
+ 9 10 11
+dimension:3
+ 0  1  2   12 13 14   24 25 26   36 37 38   48 49 50
+ 3  4  5   15 16 17   27 28 29   39 40 41   51 52 53
+ 6  7  8   18 19 20   30 31 32   42 43 44   54 55 56
+ 9 10 11   21 22 23   33 34 35   45 46 47   57 58 59
+*/
+
+#define udebug 0
+#include "utest_helper.hpp"
+static void builtin_global_id(void)
+{
+
+  // Setup kernel and buffers
+  int dim, dim_arg_global=0, global_id[80], err, i, buf_len=1;
+  OCL_CREATE_KERNEL("builtin_global_id");
+
+  OCL_CREATE_BUFFER(buf[0], CL_MEM_READ_WRITE, sizeof(int)*80, NULL);
+  OCL_CREATE_BUFFER(buf[1], CL_MEM_READ_WRITE, sizeof(int), NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+
+  for( dim=1; dim <= 3; dim++ )
+  {
+    buf_len = 1;
+    for(i=1; i <= dim; i++)
+    {
+      globals[i - 1] = 2 + i;
+      locals[i - 1] = 2 + i;
+      buf_len *= 2 + i;
+    }
+    for(i=dim+1; i <= 3; i++)
+    {
+      globals[i - 1] = 0;
+      locals[i - 1] = 0;
+    }
+
+    dim_arg_global = dim - 1;
+
+    err = clEnqueueWriteBuffer( queue, buf[1], CL_TRUE, 0, sizeof(int), &dim_arg_global, 0, NULL, NULL);
+    if (err != CL_SUCCESS)
+    {
+      printf("Error: Failed to write to source array!\n");
+      exit(1);
+    }
+
+    // Run the kernel
+    OCL_NDRANGE( dim );
+    clFinish(queue);
+
+    err = clEnqueueReadBuffer( queue, buf[0], CL_TRUE, 0, sizeof(int) * buf_len, &global_id, 0, NULL, NULL);
+
+    if (err != CL_SUCCESS)
+    {
+      printf("Error: Failed to read output array! %d\n", err);
+      exit(1);
+    }
+
+#if udebug
+    for(i = 0; i < buf_len; i++)
+    {
+      printf("%2d ", global_id[i]);
+      if ((i + 1) % 3 == 0) printf("\n");
+    }
+#endif
+
+    for( i = 0; i < buf_len; i++)
+      OCL_ASSERT( global_id[i] == i);
+  }
+}
+
+MAKE_UTEST_FROM_FUNCTION(builtin_global_id);
-- 
1.7.6.4