test/mjsunit/regress/regress-2056.js

// Copyright 2012 the V8 project authors. All rights reserved.
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// Flags: --allow-natives-syntax

var cases = [
    [0.0, 0.0, 0.0, 0,0],
    [undefined, 0.0, NaN, NaN],
    [0.0, undefined, NaN, NaN],
    [NaN, 0.0, NaN, NaN],
    [0.0, NaN, NaN, NaN],
    [-NaN, 0.0, NaN, NaN],
    [0.0, -NaN, NaN, NaN],
    [Infinity, 0.0, Infinity, 0.0],
    [0.0, Infinity, Infinity, 0.0],
    [-Infinity, 0.0, 0.0, -Infinity],
    [0.0, -Infinity, 0.0, -Infinity]
];

function do_min(a, b) {
    return Math.min(a, b);
}

function do_max(a, b) {
    return Math.max(a, b);
}

// Make sure that non-crankshaft results match expectations.
for (i = 0; i < cases.length; ++i) {
    var c = cases[i];
    assertEquals(c[3], do_min(c[0], c[1]));
    assertEquals(c[2], do_max(c[0], c[1]));
}

// Make sure that crankshaft results match expectations.
for (i = 0; i < cases.length; ++i) {
    var c = cases[i];
    %OptimizeFunctionOnNextCall(do_min);
    %OptimizeFunctionOnNextCall(do_max);
    assertEquals(c[3], do_min(c[0], c[1]));
    assertEquals(c[2], do_max(c[0], c[1]));
}