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8e2b0ec1d6
rdar://127535274 The layout string needs to be assigned before completion, to make it available in recursive metadata initialization. Setting it in the completion function causes a race between other metadata initializers using it and the completion function running.
12 lines
780 B
Swift
12 lines
780 B
Swift
// RUN: %target-build-swift -g -Xfrontend -enable-experimental-feature -Xfrontend LayoutStringValueWitnesses -Xfrontend -enable-experimental-feature -Xfrontend LayoutStringValueWitnessesInstantiation -Xfrontend -enable-layout-string-value-witnesses -Xfrontend -enable-layout-string-value-witnesses-instantiation -Xfrontend -enable-library-evolution -c -parse-as-library -emit-ir %s | %FileCheck %s
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// CHECK: define internal ptr @"$s13rdar1275352744TestVMi"
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// CHECK: [[METADATA:%.*]] = call ptr @swift_allocateGenericValueMetadataWithLayoutString
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// CHECK: call void @swift_generic_instantiateLayoutString(ptr @"type_layout_string l13rdar1275352744TestVyxG", ptr [[METADATA]])
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// CHECK: ret ptr [[METADATA]]
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// CHECK: }
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public struct Test<T> {
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let x: [T]
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let y: [T]
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}
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