Upload Kmake

deps/v8/test/mjsunit/regress/regress-9441.js

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+// Copyright 2020 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 --turbofan --no-always-turbofan
+
+// This test does not work well if we flush the feedback vector, which causes
+// deoptimization.
+// Flags: --no-stress-flush-code --no-flush-bytecode
+
+function foo(a, b) {
+    return a - b;
+}
+
+%PrepareFunctionForOptimization(foo);
+assertEquals(-1n, foo(1n, 2n));
+%OptimizeFunctionOnNextCall(foo);
+assertEquals(1n, foo(2n, 1n));
+assertOptimized(foo);
+assertThrows(() => foo(2n, undefined));
+if (%Is64Bit()) {
+    assertUnoptimized(foo);
+}
+%PrepareFunctionForOptimization(foo);
+%OptimizeFunctionOnNextCall(foo);
+assertEquals(-1n, foo(1n, 2n));
+assertOptimized(foo);
+assertThrows(() => foo(undefined, 2n));
+assertOptimized(foo);