Cherry-Pick -enable-swifttail-musttail-check flag#3016

Merged

etcwilde merged 3 commits intoswiftlang:swift/nextfrom

etcwilde:swift-next/cherry-pick-swifttailcc-musttail

Jun 7, 2021

Commits on May 28, 2021

Use musttail in MergeFunctions for swiftasync->swiftasync tail calls.

varungandhi-apple
authored and
etcwilde
committed
Update musttail verification to check all swiftasync->swiftasync tail calls.

varungandhi-apple
authored and
etcwilde
committed
Use additional musttail checking only in debug builds.

varungandhi-apple
authored and
etcwilde
committed