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This enables removal of those bridging calls for dead parameters. Read-only lets the optimizer remove such a call if the result is not used. Note that "readonly" means: no observable write operations. It's okay to allocate and initialize new objects. rdar://problem/44944094
19 lines
418 B
Swift
19 lines
418 B
Swift
// RUN: %target-swift-frontend -O -module-name=test -emit-sil %s | %FileCheck %s
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// REQUIRES: objc_interop
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// Check if the optimizer can remove dead briding calls.
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import Foundation
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class Myclass : NSObject {
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// CHECK-LABEL: sil hidden [thunk] @$s4test7MyclassC3fooyySSFTo
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// CHECK-NEXT: bb0(%0 : $NSString, %1 : $Myclass):
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// CHECK-NEXT: tuple ()
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// CHECK-NEXT: return
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@objc func foo(_ s: String) {
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}
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}
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