[5.1] [ParseableInterfaces] Preserve -enforce-exclusivity in interface args #23344
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…swiftlang#23281) By default, we compile the standard library with `-enforce-exclusivity=unchecked`. If we don't preserve this argument, then the standard library compiled from an interface includes exclusivity enforcement, which pessimizes inlining those functions, which decreases performance for clients. Part of rdar://46431767
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@swift-ci please test |
jrose-apple
approved these changes
Mar 15, 2019
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By default, we compile the standard library with
-enforce-exclusivity=unchecked. If we don't preserve this argument,then the standard library compiled from an interface includes
exclusivity enforcement, which pessimizes inlining those functions,
which decreases performance for clients.
Part of rdar://46431767
(cherry-picked from #23281)