1 files changed, 107 insertions, 0 deletions
diff --git a/third_party/highway/hwy/tests/test_util_test.cc b/third_party/highway/hwy/tests/test_util_test.cc
new file mode 100644
index 0000000000..1911467c34
--- /dev/null
+++ b/third_party/highway/hwy/tests/test_util_test.cc
@@ -0,0 +1,107 @@
+// Copyright 2019 Google LLC
+// SPDX-License-Identifier: Apache-2.0
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <string>
+
+#undef HWY_TARGET_INCLUDE
+#define HWY_TARGET_INCLUDE "tests/test_util_test.cc"
+#include "hwy/foreach_target.h"  // IWYU pragma: keep
+#include "hwy/highway.h"
+#include "hwy/tests/test_util-inl.h"
+
+HWY_BEFORE_NAMESPACE();
+namespace hwy {
+namespace HWY_NAMESPACE {
+
+struct TestName {
+  template <class T, class D>
+  HWY_NOINLINE void operator()(T t, D d) {
+    char num[10];
+    std::string expected = IsFloat<T>() ? "f" : (IsSigned<T>() ? "i" : "u");
+    snprintf(num, sizeof(num), "%u" , static_cast<unsigned>(sizeof(T) * 8));
+    expected += num;
+
+    const size_t N = Lanes(d);
+    if (N != 1) {
+      expected += 'x';
+      snprintf(num, sizeof(num), "%u", static_cast<unsigned>(N));
+      expected += num;
+    }
+    const std::string actual = TypeName(t, N);
+    if (expected != actual) {
+      HWY_ABORT("%s mismatch: expected '%s', got '%s'.\n",
+                hwy::TargetName(HWY_TARGET), expected.c_str(), actual.c_str());
+    }
+  }
+};
+
+HWY_NOINLINE void TestAllName() { ForAllTypes(ForPartialVectors<TestName>()); }
+
+struct TestEqualInteger {
+  template <class T>
+  HWY_NOINLINE void operator()(T /*t*/) const {
+    HWY_ASSERT_EQ(T(0), T(0));
+    HWY_ASSERT_EQ(T(1), T(1));
+    HWY_ASSERT_EQ(T(-1), T(-1));
+    HWY_ASSERT_EQ(LimitsMin<T>(), LimitsMin<T>());
+
+    HWY_ASSERT(!IsEqual(T(0), T(1)));
+    HWY_ASSERT(!IsEqual(T(1), T(0)));
+    HWY_ASSERT(!IsEqual(T(1), T(-1)));
+    HWY_ASSERT(!IsEqual(T(-1), T(1)));
+    HWY_ASSERT(!IsEqual(LimitsMin<T>(), LimitsMax<T>()));
+    HWY_ASSERT(!IsEqual(LimitsMax<T>(), LimitsMin<T>()));
+  }
+};
+
+struct TestEqualFloat {
+  template <class T>
+  HWY_NOINLINE void operator()(T /*t*/) const {
+    HWY_ASSERT(IsEqual(T(0), T(0)));
+    HWY_ASSERT(IsEqual(T(1), T(1)));
+    HWY_ASSERT(IsEqual(T(-1), T(-1)));
+    HWY_ASSERT(IsEqual(MantissaEnd<T>(), MantissaEnd<T>()));
+
+    HWY_ASSERT(!IsEqual(T(0), T(1)));
+    HWY_ASSERT(!IsEqual(T(1), T(0)));
+    HWY_ASSERT(!IsEqual(T(1), T(-1)));
+    HWY_ASSERT(!IsEqual(T(-1), T(1)));
+    HWY_ASSERT(!IsEqual(LowestValue<T>(), HighestValue<T>()));
+    HWY_ASSERT(!IsEqual(HighestValue<T>(), LowestValue<T>()));
+  }
+};
+
+HWY_NOINLINE void TestAllEqual() {
+  ForIntegerTypes(TestEqualInteger());
+  ForFloatTypes(TestEqualFloat());
+}
+
+// NOLINTNEXTLINE(google-readability-namespace-comments)
+}  // namespace HWY_NAMESPACE
+}  // namespace hwy
+HWY_AFTER_NAMESPACE();
+
+#if HWY_ONCE
+
+namespace hwy {
+HWY_BEFORE_TEST(TestUtilTest);
+HWY_EXPORT_AND_TEST_P(TestUtilTest, TestAllName);
+HWY_EXPORT_AND_TEST_P(TestUtilTest, TestAllEqual);
+}  // namespace hwy
+
+#endif