[Runtime] Adjust "conforming type" based on a given conformance descriptor #20564
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…iptor. When we are looking for the specific type for a protocol conformance (e.g., because we may have a subclass of the type that declared conformances), don't go back through swift_conformsToProtocol() multiple times, which requires more lookups in the global conformance table. Instead, use the (known) protocol conformance descriptor.
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@swift-ci please smoke test and merge |
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When we are looking for the specific type for a protocol conformance (e.g.,
because we may have a subclass of the type that declared conformances), don't
go back through
swift_conformsToProtocol()multiple times, whichrequires more lookups in the global conformance table. Instead, use
the (known) protocol conformance descriptor.