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enum_resilience.swift
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// RUN: rm -rf %t && mkdir %t
// RUN: %target-swift-frontend -emit-module -enable-resilience -emit-module-path=%t/resilient_struct.swiftmodule -module-name=resilient_struct %S/../Inputs/resilient_struct.swift
// RUN: %target-swift-frontend -emit-module -enable-resilience -emit-module-path=%t/resilient_enum.swiftmodule -module-name=resilient_enum -I %t %S/../Inputs/resilient_enum.swift
// RUN: %target-swift-frontend -I %t -emit-ir -enable-resilience %s | %FileCheck %s
// RUN: %target-swift-frontend -I %t -emit-ir -enable-resilience -O %s
import resilient_enum
import resilient_struct
// CHECK: %swift.type = type { [[INT:i32|i64]] }
// CHECK: %T15enum_resilience5ClassC = type <{ %swift.refcounted }>
// CHECK: %T15enum_resilience9ReferenceV = type <{ %T15enum_resilience5ClassC* }>
// Public fixed layout struct contains a public resilient struct,
// cannot use spare bits
// CHECK: %T15enum_resilience6EitherO = type <{ [[REFERENCE_TYPE:\[(4|8) x i8\]]], [1 x i8] }>
// Public resilient struct contains a public resilient struct,
// can use spare bits
// CHECK: %T15enum_resilience15ResilientEitherO = type <{ [[REFERENCE_TYPE]] }>
// Internal fixed layout struct contains a public resilient struct,
// can use spare bits
// CHECK: %T15enum_resilience14InternalEitherO = type <{ [[REFERENCE_TYPE]] }>
// Public fixed layout struct contains a fixed layout struct,
// can use spare bits
// CHECK: %T15enum_resilience10EitherFastO = type <{ [[REFERENCE_TYPE]] }>
public class Class {}
public struct Reference {
public var n: Class
}
@_fixed_layout public enum Either {
case Left(Reference)
case Right(Reference)
}
public enum ResilientEither {
case Left(Reference)
case Right(Reference)
}
enum InternalEither {
case Left(Reference)
case Right(Reference)
}
@_fixed_layout public struct ReferenceFast {
public var n: Class
}
@_fixed_layout public enum EitherFast {
case Left(ReferenceFast)
case Right(ReferenceFast)
}
// CHECK-LABEL: define{{( protected)?}} swiftcc void @_T015enum_resilience25functionWithResilientEnum010resilient_A06MediumOAEF(%swift.opaque* noalias nocapture sret, %swift.opaque* noalias nocapture)
public func functionWithResilientEnum(_ m: Medium) -> Medium {
// CHECK: [[METADATA:%.*]] = call %swift.type* @_T014resilient_enum6MediumOMa()
// CHECK-NEXT: [[METADATA_ADDR:%.*]] = bitcast %swift.type* [[METADATA]] to i8***
// CHECK-NEXT: [[VWT_ADDR:%.*]] = getelementptr inbounds i8**, i8*** [[METADATA_ADDR]], [[INT:i32|i64]] -1
// CHECK-NEXT: [[VWT:%.*]] = load i8**, i8*** [[VWT_ADDR]]
// CHECK-NEXT: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 9
// CHECK-NEXT: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK-NEXT: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK-NEXT: call %swift.opaque* [[WITNESS_FN]](%swift.opaque* %0, %swift.opaque* %1, %swift.type* [[METADATA]])
// CHECK-NEXT: ret void
return m
}
// CHECK-LABEL: define{{( protected)?}} swiftcc void @_T015enum_resilience33functionWithIndirectResilientEnum010resilient_A00E8ApproachOAEF(%swift.opaque* noalias nocapture sret, %swift.opaque* noalias nocapture)
public func functionWithIndirectResilientEnum(_ ia: IndirectApproach) -> IndirectApproach {
// CHECK: [[METADATA:%.*]] = call %swift.type* @_T014resilient_enum16IndirectApproachOMa()
// CHECK-NEXT: [[METADATA_ADDR:%.*]] = bitcast %swift.type* [[METADATA]] to i8***
// CHECK-NEXT: [[VWT_ADDR:%.*]] = getelementptr inbounds i8**, i8*** [[METADATA_ADDR]], [[INT:i32|i64]] -1
// CHECK-NEXT: [[VWT:%.*]] = load i8**, i8*** [[VWT_ADDR]]
// CHECK-NEXT: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 9
// CHECK-NEXT: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK-NEXT: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK-NEXT: call %swift.opaque* [[WITNESS_FN]](%swift.opaque* %0, %swift.opaque* %1, %swift.type* [[METADATA]])
// CHECK-NEXT: ret void
return ia
}
// CHECK-LABEL: define{{( protected)?}} swiftcc void @_T015enum_resilience31constructResilientEnumNoPayload010resilient_A06MediumOyF
public func constructResilientEnumNoPayload() -> Medium {
// CHECK: [[METADATA:%.*]] = call %swift.type* @_T014resilient_enum6MediumOMa()
// CHECK-NEXT: [[METADATA_ADDR:%.*]] = bitcast %swift.type* [[METADATA]] to i8***
// CHECK-NEXT: [[VWT_ADDR:%.*]] = getelementptr inbounds i8**, i8*** [[METADATA_ADDR]], [[INT:i32|i64]] -1
// CHECK-NEXT: [[VWT:%.*]] = load i8**, i8*** [[VWT_ADDR]]
// CHECK-NEXT: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 25
// CHECK-NEXT: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK-NEXT: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK-NEXT: call void [[WITNESS_FN]](%swift.opaque* %0, i32 0, %swift.type* [[METADATA]])
// CHECK-NEXT: ret void
return Medium.Paper
}
// CHECK-LABEL: define{{( protected)?}} swiftcc void @_T015enum_resilience29constructResilientEnumPayload010resilient_A06MediumO0G7_struct4SizeVF
public func constructResilientEnumPayload(_ s: Size) -> Medium {
// CHECK: [[METADATA:%.*]] = call %swift.type* @_T016resilient_struct4SizeVMa()
// CHECK-NEXT: [[METADATA_ADDR:%.*]] = bitcast %swift.type* [[METADATA]] to i8***
// CHECK-NEXT: [[VWT_ADDR:%.*]] = getelementptr inbounds i8**, i8*** [[METADATA_ADDR]], [[INT:i32|i64]] -1
// CHECK-NEXT: [[VWT:%.*]] = load i8**, i8*** [[VWT_ADDR]]
// CHECK-NEXT: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 6
// CHECK-NEXT: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK-NEXT: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK-NEXT: [[COPY:%.*]] = call %swift.opaque* %initializeWithCopy(%swift.opaque* %0, %swift.opaque* %1, %swift.type* [[METADATA]])
// CHECK-NEXT: [[METADATA2:%.*]] = call %swift.type* @_T014resilient_enum6MediumOMa()
// CHECK-NEXT: [[METADATA_ADDR2:%.*]] = bitcast %swift.type* [[METADATA2]] to i8***
// CHECK-NEXT: [[VWT_ADDR2:%.*]] = getelementptr inbounds i8**, i8*** [[METADATA_ADDR2]], [[INT:i32|i64]] -1
// CHECK-NEXT: [[VWT2:%.*]] = load i8**, i8*** [[VWT_ADDR2]]
// CHECK-NEXT: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT2]], i32 25
// CHECK-NEXT: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK-NEXT: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK-NEXT: call void [[WITNESS_FN]](%swift.opaque* %0, i32 -2, %swift.type* [[METADATA2]])
// CHECK-NEXT: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 4
// CHECK-NEXT: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK-NEXT: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK-NEXT: call void [[WITNESS_FN]](%swift.opaque* %1, %swift.type* [[METADATA]])
// CHECK-NEXT: ret void
return Medium.Postcard(s)
}
// CHECK-LABEL: define{{( protected)?}} swiftcc {{i32|i64}} @_T015enum_resilience19resilientSwitchTestSi0c1_A06MediumOF(%swift.opaque* noalias nocapture)
// CHECK: [[METADATA:%.*]] = call %swift.type* @_T014resilient_enum6MediumOMa()
// CHECK: [[METADATA_ADDR:%.*]] = bitcast %swift.type* [[METADATA]] to i8***
// CHECK: [[VWT_ADDR:%.*]] = getelementptr inbounds i8**, i8*** [[METADATA_ADDR]], [[INT]] -1
// CHECK: [[VWT:%.*]] = load i8**, i8*** [[VWT_ADDR]]
// CHECK: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 17
// CHECK: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK: [[WITNESS_FOR_SIZE:%.*]] = ptrtoint i8* [[WITNESS]]
// CHECK: [[ALLOCA:%.*]] = alloca i8, {{.*}} [[WITNESS_FOR_SIZE]], align 16
// CHECK: [[ALLOCA:%.*]] = alloca i8, {{.*}} [[WITNESS_FOR_SIZE]], align 16
// CHECK: [[ALLOCA:%.*]] = alloca i8, {{.*}} [[WITNESS_FOR_SIZE]], align 16
// CHECK: [[ENUM_STORAGE:%.*]] = bitcast i8* [[ALLOCA]] to %swift.opaque*
// CHECK: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 6
// CHECK: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK: [[ENUM_COPY:%.*]] = call %swift.opaque* [[WITNESS_FN]](%swift.opaque* [[ENUM_STORAGE]], %swift.opaque* %0, %swift.type* [[METADATA]])
// CHECK: [[WITNESS_ADDR:%.*]] = getelementptr inbounds i8*, i8** [[VWT]], i32 23
// CHECK: [[WITNESS:%.*]] = load i8*, i8** [[WITNESS_ADDR]]
// CHECK: [[WITNESS_FN:%.*]] = bitcast i8* [[WITNESS]]
// CHECK: [[TAG:%.*]] = call i32 %getEnumTag(%swift.opaque* [[ENUM_STORAGE]], %swift.type* [[METADATA]])
// CHECK: switch i32 [[TAG]], label %[[DEFAULT_CASE:.*]] [
// CHECK: i32 -1, label %[[PAMPHLET_CASE:.*]]
// CHECK: i32 0, label %[[PAPER_CASE:.*]]
// CHECK: i32 1, label %[[CANVAS_CASE:.*]]
// CHECK: ]
// CHECK: ; <label>:[[PAPER_CASE]]
// CHECK: br label %[[END:.*]]
// CHECK: ; <label>:[[CANVAS_CASE]]
// CHECK: br label %[[END]]
// CHECK: ; <label>:[[PAMPHLET_CASE]]
// CHECK: br label %[[END]]
// CHECK: ; <label>:[[DEFAULT_CASE]]
// CHECK: br label %[[END]]
// CHECK: ; <label>:[[END]]
// CHECK: ret
public func resilientSwitchTest(_ m: Medium) -> Int {
switch m {
case .Paper:
return 1
case .Canvas:
return 2
case .Pamphlet(let m):
return resilientSwitchTest(m)
default:
return 3
}
}
public func reabstraction<T>(_ f: (Medium) -> T) {}
// CHECK-LABEL: define{{( protected)?}} swiftcc void @_T015enum_resilience25resilientEnumPartialApplyySi0c1_A06MediumOcF(i8*, %swift.refcounted*)
public func resilientEnumPartialApply(_ f: (Medium) -> Int) {
// CHECK: [[CONTEXT:%.*]] = call noalias %swift.refcounted* @swift_rt_swift_allocObject
// CHECK: call swiftcc void @_T015enum_resilience13reabstractionyx010resilient_A06MediumOclF(i8* bitcast (void (%TSi*, %swift.opaque*, %swift.refcounted*)* @_T014resilient_enum6MediumOSiIxid_ACSiIxir_TRTA to i8*), %swift.refcounted* [[CONTEXT:%.*]], %swift.type* @_T0SiN)
reabstraction(f)
// CHECK: ret void
}
// CHECK-LABEL: define internal swiftcc void @_T014resilient_enum6MediumOSiIxid_ACSiIxir_TRTA(%TSi* noalias nocapture sret, %swift.opaque* noalias nocapture, %swift.refcounted* swiftself)
// Enums with resilient payloads from a different resilience domain
// require runtime metadata instantiation, just like generics.
public enum EnumWithResilientPayload {
case OneSize(Size)
case TwoSizes(Size, Size)
}
// Make sure we call a function to access metadata of enums with
// resilient layout.
// CHECK-LABEL: define{{( protected)?}} swiftcc %swift.type* @_T015enum_resilience20getResilientEnumTypeypXpyF()
// CHECK: [[METADATA:%.*]] = call %swift.type* @_T015enum_resilience24EnumWithResilientPayloadOMa()
// CHECK-NEXT: ret %swift.type* [[METADATA]]
public func getResilientEnumType() -> Any.Type {
return EnumWithResilientPayload.self
}
// Public metadata accessor for our resilient enum
// CHECK-LABEL: define{{( protected)?}} %swift.type* @_T015enum_resilience24EnumWithResilientPayloadOMa()
// CHECK: [[METADATA:%.*]] = load %swift.type*, %swift.type** @_T015enum_resilience24EnumWithResilientPayloadOML
// CHECK-NEXT: [[COND:%.*]] = icmp eq %swift.type* [[METADATA]], null
// CHECK-NEXT: br i1 [[COND]], label %cacheIsNull, label %cont
// CHECK: cacheIsNull:
// CHECK-NEXT: call void @swift_once([[INT]]* @_T015enum_resilience24EnumWithResilientPayloadOMa.once_token, i8* bitcast (void (i8*)* @initialize_metadata_EnumWithResilientPayload to i8*))
// CHECK-NEXT: [[METADATA2:%.*]] = load %swift.type*, %swift.type** @_T015enum_resilience24EnumWithResilientPayloadOML
// CHECK-NEXT: br label %cont
// CHECK: cont:
// CHECK-NEXT: [[RESULT:%.*]] = phi %swift.type* [ [[METADATA]], %entry ], [ [[METADATA2]], %cacheIsNull ]
// CHECK-NEXT: ret %swift.type* [[RESULT]]
// Methods inside extensions of resilient enums fish out type parameters
// from metadata -- make sure we can do that
extension ResilientMultiPayloadGenericEnum {
// CHECK-LABEL: define{{( protected)?}} swiftcc %swift.type* @_T014resilient_enum32ResilientMultiPayloadGenericEnumO0B11_resilienceE16getTypeParameterxmyF(%swift.type* %"ResilientMultiPayloadGenericEnum<T>", %swift.opaque* noalias nocapture swiftself)
// CHECK: [[METADATA:%.*]] = bitcast %swift.type* %"ResilientMultiPayloadGenericEnum<T>" to %swift.type**
// CHECK-NEXT: [[T_ADDR:%.*]] = getelementptr inbounds %swift.type*, %swift.type** [[METADATA]], [[INT]] 3
// CHECK-NEXT: [[T:%.*]] = load %swift.type*, %swift.type** [[T_ADDR]]
public func getTypeParameter() -> T.Type {
return T.self
}
}
// CHECK-LABEL: define{{( protected)?}} private void @initialize_metadata_EnumWithResilientPayload(i8*)