Dead Code Elimination

JavaScript performance comparison

Test case created

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    window.DEBUG = false;
   
    var dead = (function () {
    var DEBUG = window.DEBUG;
    return function () {
    if(DEBUG === true) { return Math.random() ^ 14 * Math.random(); }
    return Math.random();
    };
    })();
   
    var eliminated = (function () {
    return function () {
    return Math.random();
    };
    })();
};
</script>

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Testing in unknown unknown
Test Ops/sec
Dead
window.m += dead();
pending…
Eliminated
window.n += eliminated();
pending…

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