3 Commits

Author	SHA1	Message	Date
Doug Gregor	18323ddda9	Disable runtime exclusivity checking when using back-deployed concurrency. ... The back-deployed concurrency libraries and older Swift runtimes are not compatible, so turn off runtime exclusivity checking when running on older systems. Fixes rdar://84274148.	2021-10-14 15:40:33 -07:00
Doug Gregor	2747285417	Always use the same TLS context as the runtime for back-deployed concurrency ... The exclusivity checking support for concurrency relies on having access to the thread-local set of active memory accesses. Teach the back-deployed concurrency library to use the same TLS context as the runtime, which fortunately hasn't change. This fixes the concurrency exclusivity-checking test in back-deployed configurations that's tracked by rdar://83064974.	2021-10-01 17:13:02 -07:00
Doug Gregor	6fd85ac7a3	Clone exclusivity save/restore for tasks into back-deployment library ... The code that saves/restores the exclusivity checks for tasks was newly introduced into the runtime. Clone that code into the back- deployed version of the runtime.	2021-08-30 16:39:33 -07:00