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// RUN: %target-swift-frontend -module-name foo -emit-ir %s | %FileCheck %s -DINT=i%target-ptrsize
// CHECK: %swift.type = type { [[INT]] }
// -- Classes with generic bases can't go in the @objc_classes list, since
// they need runtime initialization before they're valid.
// CHECK-NOT: @objc_classes
class Base<T> {
var first, second: T
required init(x: T) {
first = x
second = x
}
func present() {
print("\(type(of: self)) \(T.self) \(first) \(second)")
}
}
// CHECK-LABEL: define hidden swiftcc %swift.metadata_response @"$s3foo12SuperDerivedCMa"(
// CHECK: [[CACHE:%.*]] = load ptr, ptr @"$s3foo12SuperDerivedCMl"
// CHECK-NEXT: [[COND:%.*]] = icmp eq ptr [[CACHE]], null
// CHECK-NEXT: br i1 [[COND]], label %cacheIsNull, label %cont
// CHECK: cacheIsNull:
// CHECK-NEXT: [[RESPONSE:%.*]] = call swiftcc %swift.metadata_response @swift_getSingletonMetadata([[INT]] %0, ptr @"$s3foo12SuperDerivedCMn")
// CHECK-NEXT: [[METADATA:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 0
// CHECK-NEXT: [[STATUS:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 1
// CHECK-NEXT: br label %cont
// CHECK: cont:
// CHECK-NEXT: [[NEW_METADATA:%.*]] = phi ptr [ [[CACHE]], %entry ], [ [[METADATA]], %cacheIsNull ]
// CHECK-NEXT: [[NEW_STATUS:%.*]] = phi [[INT]] [ 0, %entry ], [ [[STATUS]], %cacheIsNull ]
// CHECK-NEXT: [[T0:%.*]] = insertvalue %swift.metadata_response undef, ptr [[NEW_METADATA]], 0
// CHECK-NEXT: [[T1:%.*]] = insertvalue %swift.metadata_response [[T0]], [[INT]] [[NEW_STATUS]], 1
// CHECK-NEXT: ret %swift.metadata_response [[T1]]
class SuperDerived: Derived {
}
// CHECK-LABEL: define hidden swiftcc %swift.metadata_response @"$s3foo7DerivedCMa"(
// CHECK: [[CACHE:%.*]] = load ptr, ptr @"$s3foo7DerivedCMl"
// CHECK-NEXT: [[COND:%.*]] = icmp eq ptr [[CACHE]], null
// CHECK-NEXT: br i1 [[COND]], label %cacheIsNull, label %cont
// CHECK: cacheIsNull:
// CHECK-NEXT: [[RESPONSE:%.*]] = call swiftcc %swift.metadata_response @swift_getSingletonMetadata([[INT]] %0, ptr @"$s3foo7DerivedCMn")
// CHECK-NEXT: [[METADATA:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 0
// CHECK-NEXT: [[STATUS:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 1
// CHECK-NEXT: br label %cont
// CHECK: cont:
// CHECK-NEXT: [[NEW_METADATA:%.*]] = phi ptr [ [[CACHE]], %entry ], [ [[METADATA]], %cacheIsNull ]
// CHECK-NEXT: [[NEW_STATUS:%.*]] = phi [[INT]] [ 0, %entry ], [ [[STATUS]], %cacheIsNull ]
// CHECK-NEXT: [[T0:%.*]] = insertvalue %swift.metadata_response undef, ptr [[NEW_METADATA]], 0
// CHECK-NEXT: [[T1:%.*]] = insertvalue %swift.metadata_response [[T0]], [[INT]] [[NEW_STATUS]], 1
// CHECK-NEXT: ret %swift.metadata_response [[T1]]
class Derived: Base<String> {
var third: String
required init(x: String) {
third = x
super.init(x: x)
}
override func present() {
super.present()
print("...and \(third)")
}
}
func presentBase<T>(_ base: Base<T>) {
base.present()
}
presentBase(SuperDerived(x: "two"))
presentBase(Derived(x: "two"))
presentBase(Base(x: "two"))
presentBase(Base(x: 2))
// CHECK-LABEL: define internal swiftcc %swift.metadata_response @"$s3foo12SuperDerivedCMr"(ptr %0, ptr %1, ptr %2)
// -- ClassLayoutFlags = 0x100 (HasStaticVTable)
// CHECK: call swiftcc %swift.metadata_response @swift_initClassMetadata2(ptr %0, [[INT]] 256, {{.*}})
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