5903aa9354
Bug: v8:7700 Change-Id: I36018a3323d778b8657087736e1bff70b0fdbf2d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3779920 Commit-Queue: 王澳 <wangao.james@bytedance.com> Reviewed-by: Victor Gomes <victorgomes@chromium.org> Cr-Commit-Position: refs/heads/main@{#82145}
20 lines
562 B
JavaScript
20 lines
562 B
JavaScript
// 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-stress-opt --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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