mirror of
https://github.com/nodejs/node.git
synced 2025-05-21 12:25:12 +00:00
e31f0a7d25
PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
67 lines
1.4 KiB
JavaScript
67 lines
1.4 KiB
JavaScript
// Copyright 2016 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 a = new Float64Array(4);
|
|
a[2] *= -1;
|
|
a[3] *= -1;
|
|
assertEquals(0, a[0]);
|
|
assertEquals(0, a[1]);
|
|
assertEquals(-0, a[2]);
|
|
assertEquals(-0, a[3]);
|
|
|
|
function f1() {
|
|
var z = a[0];
|
|
// Same register.
|
|
assertEquals(0, Math.min(z, z));
|
|
};
|
|
%PrepareFunctionForOptimization(f1);
|
|
function f2() {
|
|
// Different registers.
|
|
assertEquals(0, Math.min(a[0], a[1]));
|
|
};
|
|
%PrepareFunctionForOptimization(f2);
|
|
function f3() {
|
|
// Zero and minus zero.
|
|
assertEquals(-0, Math.min(a[1], a[2]));
|
|
};
|
|
%PrepareFunctionForOptimization(f3);
|
|
function f4() {
|
|
// Zero and minus zero, reversed order.
|
|
assertEquals(-0, Math.min(a[2], a[1]));
|
|
};
|
|
%PrepareFunctionForOptimization(f4);
|
|
function f5() {
|
|
// Minus zero, same register.
|
|
var m_z = a[2];
|
|
assertEquals(-0, Math.min(m_z, m_z));
|
|
};
|
|
%PrepareFunctionForOptimization(f5);
|
|
function f6() {
|
|
// Minus zero, different registers.
|
|
assertEquals(-0, Math.min(a[2], a[3]));
|
|
};
|
|
%PrepareFunctionForOptimization(f6);
|
|
for (var i = 0; i < 3; i++) {
|
|
f1();
|
|
f2();
|
|
f3();
|
|
f4();
|
|
f5();
|
|
f6();
|
|
}
|
|
%OptimizeFunctionOnNextCall(f1);
|
|
%OptimizeFunctionOnNextCall(f2);
|
|
%OptimizeFunctionOnNextCall(f3);
|
|
%OptimizeFunctionOnNextCall(f4);
|
|
%OptimizeFunctionOnNextCall(f5);
|
|
%OptimizeFunctionOnNextCall(f6);
|
|
f1();
|
|
f2();
|
|
f3();
|
|
f4();
|
|
f5();
|
|
f6();
|