e3e8ea5d65
To be consistent with the all the other tiers and avoid confusion, we rename --opt to ---turbofan, and --always-opt to --always-turbofan. Change-Id: Ie23dc8282b3fb4cf2fbf73b6c3d5264de5d09718 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3610431 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Jakob Linke <jgruber@chromium.org> Cr-Commit-Position: refs/heads/main@{#80336}
63 lines
1.5 KiB
JavaScript
63 lines
1.5 KiB
JavaScript
// Copyright 2016 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 --expose-gc --turbofan
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// Make sure literals are strongly rooted and safe from weak-code deopts.
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(function() {
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function foo() {
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var a = {y: 0};
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a.y = 1;
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return a;
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}
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%PrepareFunctionForOptimization(foo);
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foo();
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foo();
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%OptimizeFunctionOnNextCall(foo);
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foo();
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gc();
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assertOptimized(foo);
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})();
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(function() {
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function hot(o) {
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return o.x + o.y;
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}
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function mapPlus(a, y) {
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var f = (x => hot({x, y}));
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%EnsureFeedbackVectorForFunction(f);
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return a.map(f);
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}
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%EnsureFeedbackVectorForFunction(mapPlus);
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%PrepareFunctionForOptimization(hot);
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var a = [1, 2, 3];
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print(mapPlus(a, 1));
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print(mapPlus(a, 2));
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%OptimizeFunctionOnNextCall(hot);
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print(mapPlus(a, 3));
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gc(); // BOOOM!
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assertOptimized(hot);
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print(mapPlus(a, 4));
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})();
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// Verify that we can handle the creation of a new script, where the
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// code is cached and the feedback vector has to be re-created.
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(function() {
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var sopen = 'function wrapper() { ';
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var s1 = 'function foo() { return bar(5); } ';
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var s2 = '%PrepareFunctionForOptimization(foo); ';
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var s3 = 'foo(); foo(); %OptimizeFunctionOnNextCall(foo); foo(); ';
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var sclose = '} wrapper(); ';
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var s = sopen + s1 + s2 + s3 + sclose;
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function bar(i){return i + 3};
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%EnsureFeedbackVectorForFunction(bar);
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for (var i = 0; i < 4; i++) {
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eval(s);
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}
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})();
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