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PR-URL: https://github.com/nodejs/node/pull/44741 Fixes: https://github.com/nodejs/node/issues/44650 Fixes: https://github.com/nodejs/node/issues/37472 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
27 lines
600 B
JavaScript
27 lines
600 B
JavaScript
// Copyright 2020 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 --turbofan --no-always-turbofan
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glo = 0;
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function write_glo(x) { glo = x }
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%PrepareFunctionForOptimization(write_glo);
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write_glo(0);
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assertEquals(0, glo);
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// At this point, glo has cell type Constant.
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%OptimizeFunctionOnNextCall(write_glo);
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write_glo(0);
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assertEquals(0, glo);
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assertOptimized(write_glo);
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Object.freeze(this);
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assertUnoptimized(write_glo);
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write_glo(1);
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assertEquals(0, glo);
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