[Perf] Drop Some Places We Re-Materialize Input Files #554
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When the set of input files is large, materializing this collection can be expensive. Just use a loop condition.
The set of swift files here is only needed to compute the disappeared set. We don't need to keep it around.
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@swift-ci test |
cltnschlosser
approved these changes
Mar 19, 2021
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Creating in-memory collections that are derived from the set of input files is potentially expensive for large compilations.