If this will see the light of day, I expect that iOS will have it first. Reasons? Apple controls its own CPUs, and Swift&#x27;s &#x27;normal&#x27; operators trap on overflow.<p>I also think that hardware support for tagged pointers (<a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Tagged_pointer#Examples" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;Tagged_pointer#Examples</a>) may be worthwhile for iOS, but that need may decrease if ther will be a gradual move from Onjective-C to Swift.