[SYCL][NFC] Refactor some LIT tests to unit-test

sycl/unittests/CMakeLists.txt

@@ -49,3 +49,4 @@ add_subdirectory(buffer)
 add_subdirectory(context_device)
 add_subdirectory(accessor)
 add_subdirectory(handler)
+add_subdirectory(builtins)

sycl/unittests/builtins/Builtins.cpp

@@ -0,0 +1,31 @@
+#include <gtest/gtest.h>
+
+#include <sycl/sycl.hpp>
+
+TEST(VectorCross, Double) {
+  sycl::double4 Res = sycl::cross(
+      sycl::double4(2.5, 3.0, 4.0, 0.0),
+      sycl::double4(5.2, 6.0, 7.0, 0.0));
+
+  ASSERT_NEAR(Res.x(), -3.0, 0.001);
+  ASSERT_NEAR(Res.y(), 3.3, 0.001);
+  ASSERT_NEAR(Res.z(), -0.6, 0.001);
+  ASSERT_NEAR(Res.w(), 0.0, 0.001);
+}
+
+TEST(VectorOfSize1, Mad) {
+  sycl::vec<float, 1> A{1.0f}, B{2.0f}, C{3.0f};
+  sycl::vec<float, 1> Res = sycl::mad(A, B, C);
+  ASSERT_NEAR(Res.x(), 5.0f, 0.001f);
+}
+
+TEST(VectorOfSize1, Clamp) {
+  sycl::vec<float, 1> A{1.0f}, B{2.0f}, C{3.0f};
+  sycl::vec<float, 1> Res = sycl::clamp(A, B, C);
+  ASSERT_FLOAT_EQ(Res.x(), 2.0f);
+}
+
+TEST(VectorOfSize1, Length) {
+  float Res = sycl::length(sycl::vec<float, 1>{1.0f});
+  ASSERT_FLOAT_EQ(Res, 1.0f);
+}

sycl/unittests/builtins/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_sycl_unittest(BuiltinsTests OBJECT
+  Builtins.cpp
+)