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Usually resilient classes cannot be promoted anyway, because their initializers are not visible and let the object appear to escape. But in some rare situations this check is needed. rdar://121558570
40 lines
1.1 KiB
Plaintext
40 lines
1.1 KiB
Plaintext
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend -parse-as-library -emit-module -o %t/Module.swiftmodule -module-name=Module %S/Inputs/public_class.swift -O
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// RUN: %target-swift-frontend -parse-as-library -emit-module -o %t/Resilient.swiftmodule -module-name=Resilient %S/Inputs/public_class.swift -O -enable-library-evolution
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// RUN: %target-sil-opt -stack-promotion -I %t %s | %FileCheck %s
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// REQUIRES: swift_in_compiler
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sil_stage canonical
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import Builtin
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import Swift
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import SwiftShims
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import Module
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import Resilient
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// CHECK-LABEL: sil @promote_non_resilient :
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// CHECK: alloc_ref [stack] $Base
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// CHECK: } // end sil function 'promote_non_resilient'
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sil @promote_non_resilient : $@convention(thin) () -> () {
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bb0:
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%0 = alloc_ref $Module.Base
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strong_release %0 : $Module.Base
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%2 = tuple ()
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return %2 : $()
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}
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// CHECK-LABEL: sil @dont_promote_resilient :
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// CHECK: alloc_ref $Base
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// CHECK: } // end sil function 'dont_promote_resilient'
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sil @dont_promote_resilient : $@convention(thin) () -> () {
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bb0:
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%0 = alloc_ref $Resilient.Base
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strong_release %0 : $Resilient.Base
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%2 = tuple ()
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return %2 : $()
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}
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