Xcode 6.1.1: Swift is soooooooo slow

Number:rdar://19658806 Date Originated:29-Jan-2015 08:07 PM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode 6.1.1 (6A2008a)
Classification:Serious Bug Reproducible:Always
Debug builds of Swift are nearly unusable. Seriously. Try building any type of responsive app that actually interacts with a bunch of Swift code, rather than just bridging into ObjC code, and you are plagued with terribly slow debug builds. Sure, the release builds are faster (though still 2x slower than the ObjC version), but it’s terribly annoying debugging release builds all the time.

A sample project is here: https://github.com/owensd/handmade-swift/tree/day005_badperf 

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