chore: import upstream snapshot with attribution

plugin/common/half.h

@@ -0,0 +1,44 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 1993-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * 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.
+ */
+//
+// Custom wrapper around external half-precision header
+//
+// Header has some "extra parentheses" warnings when different rounding modes are used.
+
+#if defined(__GNUC__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wparentheses"
+#endif
+
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wmismatched-tags"
+#endif
+
+#ifndef HALF_ROUND_TIES_TO_EVEN
+#define HALF_ROUND_TIES_TO_EVEN 1
+#endif
+
+#include "ieee/half.h"
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
+#if defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif