xref: /external/v8/test/mjsunit/smi-negative-zero.js

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// Ensure that operations on small integers handle -0.

var zero = 0;
var one = 1;
var minus_one = -1;
var two = 2;
var four = 4;
var minus_two = -2;
var minus_four = -4;

// variable op variable

assertEquals(one / (-zero), -Infinity, "one / -0 I");

assertEquals(one / (zero * minus_one), -Infinity, "one / -1");
assertEquals(one / (minus_one * zero), -Infinity, "one / -0 II");
assertEquals(one / (zero * zero), Infinity, "one / 0 I");
assertEquals(one / (minus_one * minus_one), 1, "one / 1");

assertEquals(one / (zero / minus_one), -Infinity, "one / -0 III");
assertEquals(one / (zero / one), Infinity, "one / 0 II");

assertEquals(one / (minus_four % two), -Infinity, "foo1");
assertEquals(one / (minus_four % minus_two), -Infinity, "foo2");
assertEquals(one / (four % two), Infinity, "foo3");
assertEquals(one / (four % minus_two), Infinity, "foo4");

// literal op variable

assertEquals(one / (0 * minus_one), -Infinity, "bar1");
assertEquals(one / (-1 * zero), -Infinity, "bar2");
assertEquals(one / (0 * zero), Infinity, "bar3");
assertEquals(one / (-1 * minus_one), 1, "bar4");

assertEquals(one / (0 / minus_one), -Infinity, "baz1");
assertEquals(one / (0 / one), Infinity, "baz2");

assertEquals(one / (-4 % two), -Infinity, "baz3");
assertEquals(one / (-4 % minus_two), -Infinity, "baz4");
assertEquals(one / (4 % two), Infinity, "baz5");
assertEquals(one / (4 % minus_two), Infinity, "baz6");

// variable op literal

assertEquals(one / (zero * -1), -Infinity, "fizz1");
assertEquals(one / (minus_one * 0), -Infinity, "fizz2");
assertEquals(one / (zero * 0), Infinity, "fizz3");
assertEquals(one / (minus_one * -1), 1, "fizz4");

assertEquals(one / (zero / -1), -Infinity, "buzz1");
assertEquals(one / (zero / 1), Infinity, "buzz2");

assertEquals(one / (minus_four % 2), -Infinity, "buzz3");
assertEquals(one / (minus_four % -2), -Infinity, "buzz4");
assertEquals(one / (four % 2), Infinity, "buzz5");
assertEquals(one / (four % -2), Infinity, "buzz6");

// literal op literal

assertEquals(one / (-0), -Infinity, "fisk1");

assertEquals(one / (0 * -1), -Infinity, "fisk2");
assertEquals(one / (-1 * 0), -Infinity, "fisk3");
assertEquals(one / (0 * 0), Infinity, "fisk4");
assertEquals(one / (-1 * -1), 1, "fisk5");

assertEquals(one / (0 / -1), -Infinity, "hest1");
assertEquals(one / (0 / 1), Infinity, "hest2");

assertEquals(one / (-4 % 2), -Infinity, "fiskhest1");
assertEquals(one / (-4 % -2), -Infinity, "fiskhest2");
assertEquals(one / (4 % 2), Infinity, "fiskhest3");
assertEquals(one / (4 % -2), Infinity, "fiskhest4");