v8/test/mjsunit/regress/regress-crbug-722756.js
Jakob Kummerow e33fd30777 [crankshaft] Fix HAliasAnalyzer for constants
BUG=chromium:722756

Change-Id: I04fc7fa0b8ef1e56d25f829fc5c8f53ae439aa52
Reviewed-on: https://chromium-review.googlesource.com/507209
Reviewed-by: Daniel Clifford <danno@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45375}
2017-05-17 13:11:02 +00:00

41 lines
778 B
JavaScript

// Copyright 2017 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
var array = [[{}], [1.1]];
function transition() {
for(var i = 0; i < array.length; i++){
var arr = array[i];
arr[0] = {};
}
}
var double_arr2 = [1.1,2.2];
var flag = 0;
function swap() {
try {} catch(e) {} // Prevent Crankshaft from inlining this.
if (flag == 1) {
array[1] = double_arr2;
}
}
var expected = 6.176516726456e-312;
function f(){
swap();
double_arr2[0] = 1;
transition();
double_arr2[1] = expected;
}
for(var i = 0; i < 3; i++) {
f();
}
%OptimizeFunctionOnNextCall(f);
flag = 1;
f();
assertEquals(expected, double_arr2[1]);