28e733e7d0
R=titzer@chromium.org TEST=compiler-unittests/JSBuiltinReducerTest.MathAbs Review URL: https://codereview.chromium.org/605123004 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24255 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
85 lines
2.0 KiB
JavaScript
85 lines
2.0 KiB
JavaScript
// Copyright 2014 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.
|
|
|
|
function Module(stdlib) {
|
|
"use asm";
|
|
|
|
var abs = stdlib.Math.abs;
|
|
|
|
// f: double -> double
|
|
function f(a) {
|
|
a = +a;
|
|
return +abs(a);
|
|
}
|
|
|
|
// g: unsigned -> double
|
|
function g(a) {
|
|
a = a>>>0;
|
|
return +abs(a);
|
|
}
|
|
|
|
// h: signed -> double
|
|
function h(a) {
|
|
a = a|0;
|
|
return +abs(a);
|
|
}
|
|
|
|
return { f: f, g: g, h: h };
|
|
}
|
|
|
|
var m = Module({ Math: Math });
|
|
var f = m.f;
|
|
var g = m.g;
|
|
var h = m.h;
|
|
|
|
assertTrue(isNaN(f(NaN)));
|
|
assertTrue(isNaN(f(undefined)));
|
|
assertTrue(isNaN(f(function() {})));
|
|
|
|
assertEquals("Infinity", String(1/f(0)));
|
|
assertEquals("Infinity", String(1/f(-0)));
|
|
assertEquals("Infinity", String(f(Infinity)));
|
|
assertEquals("Infinity", String(f(-Infinity)));
|
|
|
|
assertEquals(0, f(0));
|
|
assertEquals(0.1, f(0.1));
|
|
assertEquals(0.5, f(0.5));
|
|
assertEquals(0.1, f(-0.1));
|
|
assertEquals(0.5, f(-0.5));
|
|
assertEquals(1, f(1));
|
|
assertEquals(1.1, f(1.1));
|
|
assertEquals(1.5, f(1.5));
|
|
assertEquals(1, f(-1));
|
|
assertEquals(1.1, f(-1.1));
|
|
assertEquals(1.5, f(-1.5));
|
|
|
|
assertEquals(0, g(0));
|
|
assertEquals(0, g(0.1));
|
|
assertEquals(0, g(0.5));
|
|
assertEquals(0, g(-0.1));
|
|
assertEquals(0, g(-0.5));
|
|
assertEquals(1, g(1));
|
|
assertEquals(1, g(1.1));
|
|
assertEquals(1, g(1.5));
|
|
assertEquals(4294967295, g(-1));
|
|
assertEquals(4294967295, g(-1.1));
|
|
assertEquals(4294967295, g(-1.5));
|
|
|
|
assertEquals(0, h(0));
|
|
assertEquals(0, h(0.1));
|
|
assertEquals(0, h(0.5));
|
|
assertEquals(0, h(-0.1));
|
|
assertEquals(0, h(-0.5));
|
|
assertEquals(1, h(1));
|
|
assertEquals(1, h(1.1));
|
|
assertEquals(1, h(1.5));
|
|
assertEquals(1, h(-1));
|
|
assertEquals(1, h(-1.1));
|
|
assertEquals(1, h(-1.5));
|
|
|
|
assertEquals(Number.MIN_VALUE, f(Number.MIN_VALUE));
|
|
assertEquals(Number.MIN_VALUE, f(-Number.MIN_VALUE));
|
|
assertEquals(Number.MAX_VALUE, f(Number.MAX_VALUE));
|
|
assertEquals(Number.MAX_VALUE, f(-Number.MAX_VALUE));
|