[pull] swift/main from apple:swift/main#1071

Merged

pull[bot] merged 4 commits intoswiftwasm:swift/mainfrom

swiftlang:swift/main

Jan 20, 2021

Commits on Jan 19, 2021

[llvm] Protect signpost map with a mutex
JDevlieghere
committed

Commits on Jan 20, 2021

Merge pull request #2352 from apple/🍒/bastille/a4b42c621b9e2009cfd8bc9265bbf970c7231271
JDevlieghere
authored
Merge commit 'a269d33329a4' from apple/stable/20200714 into swift/release/5.4
git apple-llvm automerger
committed
Merge commit 'f7e9aa3366bc' from swift/release/5.4 into swift/main
git apple-llvm automerger
committed