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21b4004d69
If the callee is a non-generic thunk which calls a (not inlinable) generic function in the defining module,
it's more efficient to not devirtualize, but call the non-generic thunk - even though it's done through the witness table.
Example:
```
protocol P {
func f(x: [Int]) // not generic
}
struct S: P {
func f(x: some RandomAccessCollection<Int>) { ... } // generic
}
```
In the defining module, the generic conformance can be fully specialized (which is not possible in the client module, because it's not inlinable).
rdar://102623022
22 lines
987 B
Swift
22 lines
987 B
Swift
// RUN: %empty-directory(%t)
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// FIXME: BEGIN -enable-source-import hackaround
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -emit-module -o %t %clang-importer-sdk-path/swift-modules/CoreGraphics.swift
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) -emit-module -o %t %clang-importer-sdk-path/swift-modules/Foundation.swift
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// FIXME: END -enable-source-import hackaround
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource -I %t) -emit-module -o %t -parse-as-library %S/Inputs/use_imported_enums.swift -module-name UsesImportedEnums
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// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource -I %t) -emit-sil %s | %FileCheck %s
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// REQUIRES: objc_interop
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import Foundation
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import UsesImportedEnums
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// CHECK-LABEL: sil hidden @$s4main4test1eSbSo13NSRuncingModeV_tF
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func test(e: NSRuncingMode) -> Bool {
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// CHECK-NOT: return
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// CHECK: witness_method $NSRuncingMode, #Equatable."=="
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return compareImportedEnumToSelf(e)
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}
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