Web GPU must be disabled on 32-bit builds, but it seems I'm not good at doing that.
Created attachment 363280 [details] Patch
After deliberation, we've already dropped support for 32-bit, so I'm leaving 32-bit broken. The EWS bot will be removed soon.
Comment on attachment 363280 [details] Patch Clearing flags on attachment: 363280 Committed r242263: <https://trac.webkit.org/changeset/242263>
All reviewed patches have been landed. Closing bug.
<rdar://problem/48512114>