20 lines
546 B
JavaScript
20 lines
546 B
JavaScript
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// Copyright 2022 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --maglev --no-always-turbofan
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function foo(x) {
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return x ?? 10
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}
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%PrepareFunctionForOptimization(foo);
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assertEquals(10, foo(undefined));
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assertEquals(10, foo(null));
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assertEquals(1, foo(1));
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%OptimizeMaglevOnNextCall(foo);
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assertEquals(10, foo(undefined));
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assertEquals(10, foo(null));
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assertEquals(1, foo(1));
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assertTrue(isMaglevved(foo));
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