v8/test/mjsunit/compiler/regress-1200490.js
Georg Neis 928da8091f [compiler] Add a few regression tests
Tbr: nicohartmann@chromium.org
Bug: chromium:1198705, chromium:1199345, chromium:1200490
Change-Id: I4a486df636e084279423e6cd3b867137bfe3fd6f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2939984
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74945}
2021-06-04 08:37:26 +00:00

50 lines
1.0 KiB
JavaScript

// Copyright 2021 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
(function() {
function foo(a) {
var y = 1;
var z = 0;
if (a) {
y = -1;
z = -0;
}
return z + (0 * y);
}
assertEquals(-0, foo(true));
%PrepareFunctionForOptimization(foo);
assertEquals(0, foo(false));
%OptimizeFunctionOnNextCall(foo);
assertEquals(-0, foo(true));
})();
(function() {
function foo(a) {
var x = a ? -0 : 0;
return x + (x % 1);
}
assertEquals(-0, foo(true));
%PrepareFunctionForOptimization(foo);
assertEquals(0, foo(false));
%OptimizeFunctionOnNextCall(foo);
assertEquals(-0, foo(true));
})();
(function() {
function foo(a) {
var x = a ? -0 : 0;
return x + (x % -1);
}
assertEquals(-0, foo(true));
%PrepareFunctionForOptimization(foo);
assertEquals(0, foo(false));
%OptimizeFunctionOnNextCall(foo);
assertEquals(-0, foo(true));
})();