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7ec52e6329
Some metadata may require instantiation, but not in a way that requires us to put an additional cache layer in front of it. `Self` metadata is also trivial to access from the local cache, but isn't statically referenceable. Split these concepts and update code to use one or the other appropriately. This catches an issue with metadata prespecialization where it would try to make records for dynamic `Self` incorrectly.
64 lines
2.4 KiB
Swift
64 lines
2.4 KiB
Swift
// RUN: %target-swift-frontend -prespecialize-generic-metadata %s -target %module-target-future -emit-ir -parse-as-library | %FileCheck %s -DINT=i%target-ptrsize -DALIGNMENT=%target-alignment
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// REQUIRES: OS=macosx || OS=ios || OS=tvos || OS=watchos || OS=linux-gnu
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// REQUIRES: CPU=x86_64
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// FIXME: Not a SIL test because we can't parse dynamic Self in SIL.
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// <rdar://problem/16931299>
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// CHECK: [[TYPE:%.+]] = type <{ [8 x i8] }>
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@inline(never) func id<T>(_ t: T) -> T {
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return t
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}
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// CHECK-LABEL: define hidden swiftcc void @"$s28dynamic_self_metadata_future2idyxxlF"
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protocol P {
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associatedtype T
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}
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extension P {
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func f() {}
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}
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struct G<T> : P {
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var t: T
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}
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class C {
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class func fromMetatype() -> Self? { return nil }
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// CHECK-LABEL: define hidden swiftcc i64 @"$s28dynamic_self_metadata_future1CC12fromMetatypeACXDSgyFZ"(%swift.type* swiftself %0)
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// CHECK: ret i64 0
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func fromInstance() -> Self? { return nil }
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// CHECK-LABEL: define hidden swiftcc i64 @"$s28dynamic_self_metadata_future1CC12fromInstanceACXDSgyF"(%T28dynamic_self_metadata_future1CC* swiftself %0)
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// CHECK: ret i64 0
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func dynamicSelfArgument() -> Self? {
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return id(nil)
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}
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// CHECK-LABEL: define hidden swiftcc i64 @"$s28dynamic_self_metadata_future1CC0A12SelfArgumentACXDSgyF"(%T28dynamic_self_metadata_future1CC* swiftself %0)
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// CHECK: [[GEP1:%.+]] = getelementptr {{.*}} %0
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// CHECK: [[TYPE1:%.+]] = load {{.*}} [[GEP1]]
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// CHECK: [[T0:%.+]] = call swiftcc %swift.metadata_response @"$sSqMa"(i64 0, %swift.type* [[TYPE1]])
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// CHECK: [[TYPE2:%.+]] = extractvalue %swift.metadata_response [[T0]], 0
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// CHECK: call swiftcc void @"$s28dynamic_self_metadata_future2idyxxlF"({{.*}}, %swift.type* [[TYPE2]])
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func dynamicSelfConformingType() -> Self? {
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_ = G(t: self).f()
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return nil
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}
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// CHECK-LABEL: define hidden swiftcc i64 @"$s28dynamic_self_metadata_future1CC0A18SelfConformingTypeACXDSgyF"(%T28dynamic_self_metadata_future1CC* swiftself %0)
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// CHECK: [[SELF_GEP:%.+]] = getelementptr {{.*}} %0
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// CHECK: [[SELF_TYPE:%.+]] = load {{.*}} [[SELF_GEP]]
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// CHECK: call i8** @swift_getWitnessTable(
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// CHECK-SAME: %swift.protocol_conformance_descriptor* bitcast (
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// CHECK-SAME: {{.*}} @"$s28dynamic_self_metadata_future1GVyxGAA1PAAMc"
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// CHECK-SAME: to %swift.protocol_conformance_descriptor*
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// CHECK-SAME: ),
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// CHECK-SAME: %swift.type* %{{[0-9]+}},
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// CHECK-SAME: i8*** undef
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// CHECK-SAME: )
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}
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