> On Aug 17, 2016, at 5:48 AM, Ryan Lovelett via swift-dev > <swift-dev@swift.org> wrote: > > I just noticed that if you do `utils/update-checkout --clone` it pulls > down `compiler-rt`. I have been building Swift from source on Linux for > awhile now. I've never once checked out compiler-rt. Which makes me > wonder if that repository is even in use. > > Here is the question: what is the compiler-rt repository used for? Is my > build not working as expected without compiler-rt?
At least one reason is that the runtime support for code coverage testing is in compiler-rt. We want to be able to test Swift’s support for code coverage and we need the runtime library to be able to run those tests. _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev
