Upload Kmake

deps/v8/test/mjsunit/maglev/regress-389330329.js

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+// 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: --allow-natives-syntax --no-maglev-loop-peeling
+// Flags: --maglev --no-always-turbofan
+
+let obj = { y: 19.5 };
+let arr = [, 2.5];
+function foo(limit) {
+  let val = arr[0];
+
+  for (let i = 0; i < limit; i += 1) {
+      i += val;
+      val = 40;
+  }
+
+  try { val.meh(); } catch (e) {}
+
+  obj.y = val;
+}
+
+%PrepareFunctionForOptimization(foo);
+foo(1);
+
+%OptimizeMaglevOnNextCall(foo);
+foo(0);
+// {foo} should have deopted right after being optimized.
+assertUnoptimized(foo);
+assertEquals(undefined, obj.y);
+
+
+%OptimizeMaglevOnNextCall(foo);
+foo(0);
+// {foo} should remain optimized now.
+assertOptimized(foo);
+assertEquals(undefined, obj.y);