v8/test/mjsunit/es6/map-constructor-entry-side-effect2.js
Camillo Bruni e3e8ea5d65 [flags] Rename --opt to --turbofan
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}
2022-05-03 12:10:30 +00:00

63 lines
1.9 KiB
JavaScript

// Copyright 2018 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 --turbofan
function TestMapConstructorEntrySideEffect(ctor) {
const originalPrototypeSet = ctor.prototype.set;
const k1 = {};
const k2 = {};
let callCount = 0;
const input = [
Object.defineProperty([, 1], "0", {
get() {
// Verify continuation retains original set function
ctor.prototype.set = () => {
callCount++;
};
return k1;
}
}),
[k2, 2]
];
const col = new ctor(input);
assertEquals(0, callCount);
if ('size' in col) assertEquals(2, col.size);
assertTrue(col.has(k1));
assertTrue(col.has(k2));
const col2 = new ctor(input);
assertEquals(2, callCount);
if ('size' in col) assertEquals(0, col2.size);
assertFalse(col2.has(k1));
assertFalse(col2.has(k2));
ctor.prototype.set = originalPrototypeSet;
}
// Forbid inlining these helper functions to avoid deopt surprises.
%NeverOptimizeFunction(assertEquals);
%NeverOptimizeFunction(assertFalse);
%NeverOptimizeFunction(assertTrue);
%PrepareFunctionForOptimization(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(Map);
TestMapConstructorEntrySideEffect(Map);
TestMapConstructorEntrySideEffect(Map);
%OptimizeFunctionOnNextCall(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(Map);
assertOptimized(TestMapConstructorEntrySideEffect);
// This call would deopt
TestMapConstructorEntrySideEffect(WeakMap);
%PrepareFunctionForOptimization(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(WeakMap);
TestMapConstructorEntrySideEffect(WeakMap);
%OptimizeFunctionOnNextCall(TestMapConstructorEntrySideEffect);
TestMapConstructorEntrySideEffect(WeakMap);
assertOptimized(TestMapConstructorEntrySideEffect);