6bd756d7c6
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>
46 lines
1.3 KiB
JavaScript
46 lines
1.3 KiB
JavaScript
// Copyright 2015 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 --no-always-turbofan
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function literals_sharing_test(warmup, optimize) {
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function closure() {
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// Ensure small array literals start in specific element kind mode.
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assertTrue(%HasSmiElements([]));
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assertTrue(%HasSmiElements([1]));
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assertTrue(%HasSmiElements([1, 2]));
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assertTrue(%HasDoubleElements([1.1]));
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assertTrue(%HasDoubleElements([1.1, 2]));
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var a = [1, 2, 3];
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if (warmup) {
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// Transition elements kind during warmup...
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assertTrue(%HasSmiElements(a));
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assertEquals(4, a.push(1.3));
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}
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// ... and ensure that the information about transitioning is
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// propagated to the next closure.
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assertTrue(%HasDoubleElements(a));
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};
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%PrepareFunctionForOptimization(closure);
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;
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%EnsureFeedbackVectorForFunction(closure);
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if (optimize) %OptimizeFunctionOnNextCall(closure);
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closure();
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}
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function test() {
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var warmup = true;
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for (var i = 0; i < 3; i++) {
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print('iter: ' + i + ', warmup: ' + warmup);
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literals_sharing_test(warmup, false);
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warmup = false;
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}
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print("iter: " + i + ", opt: true");
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literals_sharing_test(warmup, true);
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}
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test();
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