test case for function "rotate"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>
Reviewed-by: Song, Ruiling <ruiling.song@intel.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/utests/compiler_rotate.cpp b/utests/compiler_rotate.cpp
new file mode 100644
index 00000000..bf52ca4c
--- /dev/null
+++ b/utests/compiler_rotate.cpp
@@ -0,0 +1,40 @@
+#include "utest_helper.hpp"
+
+int cpu(int src, int y) {
+  return (src << y) | (src >> (32 - y));
+}
+
+void compiler_rotate(void)
+{
+  const int n = 32;
+  int src[n], y[n];
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL("compiler_rotate");
+  OCL_CREATE_BUFFER(buf[0], 0, n * sizeof(int), NULL);
+  OCL_CREATE_BUFFER(buf[1], 0, n * sizeof(int), NULL);
+  OCL_CREATE_BUFFER(buf[2], 0, n * sizeof(int), NULL);
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  OCL_SET_ARG(1, sizeof(cl_mem), &buf[1]);
+  OCL_SET_ARG(2, sizeof(cl_mem), &buf[2]);
+  globals[0] = n;
+  locals[0] = 16;
+
+  OCL_MAP_BUFFER(0);
+  OCL_MAP_BUFFER(2);
+  for (int i = 0; i < n; ++i) {
+    src[i] = ((int*)buf_data[0])[i] = rand();
+    y[i] = ((int*)buf_data[2])[i] = rand() & 31;
+  }
+  OCL_UNMAP_BUFFER(0);
+  OCL_UNMAP_BUFFER(2);
+
+  OCL_NDRANGE(1);
+
+  OCL_MAP_BUFFER(1);
+  for (int i = 0; i < n; ++i)
+    OCL_ASSERT(((int*)buf_data[1])[i] == cpu(src[i], y[i]));
+  OCL_UNMAP_BUFFER(1);
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_rotate);