As title; for 32-bit wasm BBQ we want an efficient test for unsigned overflow--this is not really something the 64-bit ports have heretofore needed; most architectures have something we can reach straight for though, so, add it.
Pull request: https://github.com/WebKit/WebKit/pull/19448
Committed 269717@main (f0a74ba686ad): <https://commits.webkit.org/269717@main> Reviewed commits have been landed. Closing PR #19448 and removing active labels.
<rdar://problem/117418455>