04c868c1ac
These tests rely on predictable opt & deopt timings. Also add the --opt flag to tests to force optimization even in configurations that contain the --no-opt flag. Bug: v8:9972,chromium:1049982 Change-Id: Ic161d188ebfae9aaae6a160d365413abedfee5f1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2050402 Reviewed-by: Michael Achenbach <machenbach@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Michael Achenbach <machenbach@chromium.org> Cr-Commit-Position: refs/heads/master@{#66231}
32 lines
694 B
JavaScript
32 lines
694 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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//
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// Flags: --allow-natives-syntax --opt
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const xs = [1,2,3,4,5,6,7,8,9];
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let deopt = false;
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function g(acc, x, i) {
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if (deopt) {
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assertFalse(%IsBeingInterpreted());
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Array.prototype.x = 42; // Trigger a lazy deopt.
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deopt = false;
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}
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return acc + x;
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}
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function f() {
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return xs.reduce(g, 0);
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}
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%PrepareFunctionForOptimization(f);
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%PrepareFunctionForOptimization(g);
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assertEquals(45, f());
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assertEquals(45, f());
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%OptimizeFunctionOnNextCall(f);
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deopt = true;
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assertEquals(45, f());
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assertEquals(45, f());
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