add utest compiler_overflow for llvm intrinsic function.

this case only runs for uadd_with_over_flow function so far.

Signed-off-by: Luo Xionghu <xionghu.luo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/utests/compiler_overflow.cpp b/utests/compiler_overflow.cpp
new file mode 100644
index 00000000..1d3f53d1
--- /dev/null
+++ b/utests/compiler_overflow.cpp
@@ -0,0 +1,72 @@
+#include "utest_helper.hpp"
+
+namespace {
+
+typedef struct {
+  uint32_t x;
+  uint32_t y;
+  uint32_t z;
+  uint32_t w;
+} uint4;
+
+typedef struct {
+  uint16_t x;
+  uint16_t y;
+  uint16_t z;
+  uint16_t w;
+} ushort4;
+
+typedef struct {
+  uint8_t x;
+  uint8_t y;
+  uint8_t z;
+  uint8_t w;
+} uchar4;
+
+template<typename T>
+void test(const char *kernel_name, int s_type)
+{
+  const size_t n = 16;
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL_FROM_FILE("compiler_overflow", kernel_name);
+  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]);
+
+  OCL_MAP_BUFFER(0);
+  for (uint32_t i = 0; i < n; ++i) {
+    ((T*)buf_data[0])[i].x = s_type?CL_INT_MAX:CL_UINT_MAX;
+    ((T*)buf_data[0])[i].y = s_type?CL_INT_MAX:CL_UINT_MAX;
+    ((T*)buf_data[0])[i].z = s_type?CL_INT_MAX:CL_UINT_MAX;
+    ((T*)buf_data[0])[i].w = i;
+  }
+  OCL_UNMAP_BUFFER(0);
+
+  globals[0] = n;
+  locals[0] = 16;
+  OCL_NDRANGE(1);
+
+  OCL_MAP_BUFFER(1);
+  for (uint32_t i = 0; i < 16; ++i) {
+    OCL_ASSERT(((T*)buf_data[1])[i].x == 0);
+    OCL_ASSERT(((T*)buf_data[1])[i].y == 1);
+    OCL_ASSERT(((T*)buf_data[1])[i].z == 1);
+    OCL_ASSERT(((T*)buf_data[1])[i].w == i+2);
+  }
+  OCL_UNMAP_BUFFER(1);
+}
+
+}
+
+#define compiler_overflow(type, kernel, s_type) \
+static void compiler_overflow_ ##type(void)\
+{\
+  test<type>(# kernel, s_type);\
+}\
+MAKE_UTEST_FROM_FUNCTION(compiler_overflow_ ## type);
+
+compiler_overflow(uint4, compiler_overflow_uint4, 0)
+compiler_overflow(ushort4, compiler_overflow_ushort4, 0)
+compiler_overflow(uchar4, compiler_overflow_uchar4, 0)