Gigacage::hasCapacityToUseLargeGigacage is determined based on EFFECTIVE_ADDRESS_WIDTH. If we have enough address range to potentially use a large gigacage, then we have enough address range to useWebAssemblyFastMemory.
Created attachment 432103 [details]
Created attachment 432104 [details]
Thanks for the review. Landed in r279209: <http://trac.webkit.org/r279209>.