Upload Kmake

deps/v8/test/mjsunit/maglev/regress-328846303.js

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+// Copyright 2024 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: --allow-natives-syntax --maglev --no-use-ic
+// Flags: --maglev-escape-analysis
+
+function foo() {
+  // --no-use-ic guarantees a soft deopt here, so the allocation goes
+  // to deopt-info.
+  return [NaN,, NaN];
+}
+
+%PrepareFunctionForOptimization(foo);
+foo();
+%OptimizeMaglevOnNextCall(foo);
+
+// When accessing the hole, we get an undefined.
+assertEquals(foo()[1], undefined);
+// We deopt.
+assertFalse(isOptimized(foo));