Upload Kmake

deps/v8/test/mjsunit/regress/wasm/regress-399497254.js

@@ -0,0 +1,21 @@
+// Copyright 2025 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --wasm-staging
+
+d8.file.execute('test/mjsunit/wasm/wasm-module-builder.js');
+
+const builder = new WasmModuleBuilder();
+builder.addFunction("main", kSig_v_v).exportFunc()
+  .addLocals(kWasmStringViewWtf16, 1)
+  .addBody([
+    kExprLoop, kWasmVoid,
+      kExprUnreachable,
+      kExprRefAsNonNull,
+      kExprLocalSet, 0,
+    kExprEnd,
+  ]);
+
+const instance = builder.instantiate();
+assertTraps(kTrapUnreachable, instance.exports.main);