155240 2016-03-09 10:28:09 -0800 [JSC] Consider converting ArithSub(..., 0) => ToNumber(...) 2016-03-09 10:28:24 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build Unspecified Unspecified NEW P2 Normal --- 154022 1 ysuzuki webkit-unassigned oldest_to_newest 1172610 0 ysuzuki 2016-03-09 10:28:09 -0800 value - 0 is an idiom to apply ToNumber in JS. (+ 0 is not typically used because "string" + 0 => "string0"). I've run octane and found box2d performs this several times. (The code `... - 0` can be seen in kraken's fft, dft, etc. But this path is not used in the benchmark run). Of course, before doing this, we should investigate the impact more...