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
699 B
JavaScript
32 lines
699 B
JavaScript
// Copyright 2020 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
//
|
|
// Flags: --allow-natives-syntax --opt
|
|
|
|
const xs = [1,2,3,4,5,6,7,8,9];
|
|
let deopt = false;
|
|
|
|
function g(acc, x, i) {
|
|
if (deopt) {
|
|
assertFalse(%IsBeingInterpreted());
|
|
Array.prototype.x = 42; // Trigger a lazy deopt.
|
|
deopt = false;
|
|
}
|
|
return acc + x;
|
|
}
|
|
|
|
function f() {
|
|
return xs.reduceRight(g, 0);
|
|
}
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
%PrepareFunctionForOptimization(g);
|
|
assertEquals(45, f());
|
|
assertEquals(45, f());
|
|
%OptimizeFunctionOnNextCall(f);
|
|
|
|
deopt = true;
|
|
assertEquals(45, f());
|
|
assertEquals(45, f());
|