chore: import upstream snapshot with attribution

samples/trtexec/trtexec_main.cpp

@@ -0,0 +1,33 @@
+/*
+ * SPDX-FileCopyrightText: Copyright (c) 1993-2026 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.
+ */
+
+#include "sampleUtils.h" // for sample::peekArg
+#include "trtexec.h"
+
+//! Tuning vs single-run dispatch. The peek is intentionally minimal — a real
+//! parse would discard the original argv before runTuningLoop can re-use it
+//! for its child fork+execs. Each branch does its own parseArgs.
+int main(int argc, char** argv)
+{
+    if (sample::peekArg(argc, argv, "--tuneBuildRoutes")
+        || sample::peekArg(argc, argv, "--tuneBuildRouteFile")
+        || sample::peekArg(argc, argv, "--continue"))
+    {
+        return sample::runTuningLoop(argc, argv);
+    }
+    return sample::trtexecMain(argc, argv);
+}