Upload Kmake

deps/v8/test/mjsunit/turboshaft/maglev-frontend/dematerialized-simple-object.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 --turbolev --turbofan
+
+function dematerialized_simple_object(n) {
+  let o = { x : 42, y : n };
+  if (n < 0) {
+    // We won't execute this code when collecting feedback, which means that
+    // Maglev will do an unconditional deopt here (and {o} will thus have no
+    // use besides the frame state for this deopt).
+    n + 5;
+    return o;
+  }
+  return n + 2;
+}
+
+%PrepareFunctionForOptimization(dematerialized_simple_object);
+assertEquals(7, dematerialized_simple_object(5));
+assertEquals(7, dematerialized_simple_object(5));
+
+%OptimizeFunctionOnNextCall(dematerialized_simple_object);
+assertEquals(7, dematerialized_simple_object(5));
+assertEquals({ x : 42, y : -1 }, dematerialized_simple_object(-1));