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// RUN: %target-swift-emit-silgen -module-name property_abstraction %s | %FileCheck %s
struct Int {
mutating func foo() {}
}
struct Foo<T, U> {
var f: (T) -> U
var g: T
}
// CHECK-LABEL: sil hidden [ossa] @$s20property_abstraction4getF{{[_0-9a-zA-Z]*}}Foo{{.*}}F : $@convention(thin) (@guaranteed Foo<Int, Int>) -> @owned @callee_guaranteed (Int) -> Int {
// CHECK: bb0([[X_ORIG:%.*]] : @guaranteed $Foo<Int, Int>):
// CHECK: [[F_ORIG:%.*]] = struct_extract [[X_ORIG]] : $Foo<Int, Int>, #Foo.f
// CHECK: [[F_CONV:%.*]] = convert_function [[F_ORIG]]
// CHECK: [[F_ORIG_COPY:%.*]] = copy_value [[F_CONV]]
// CHECK: [[REABSTRACT_FN:%.*]] = function_ref @$s{{.*}}TR :
// CHECK: [[F_SUBST:%.*]] = partial_apply [callee_guaranteed] [[REABSTRACT_FN]]([[F_ORIG_COPY]])
// CHECK: return [[F_SUBST]]
// CHECK: } // end sil function '$s20property_abstraction4getF{{[_0-9a-zA-Z]*}}F'
func getF(_ x: Foo<Int, Int>) -> (Int) -> Int {
return x.f
}
// CHECK-LABEL: sil hidden [ossa] @$s20property_abstraction4setF{{[_0-9a-zA-Z]*}}F
// CHECK: [[REABSTRACT_FN:%.*]] = function_ref @$s{{.*}}TR :
// CHECK: [[F_ORIG:%.*]] = partial_apply [callee_guaranteed] [[REABSTRACT_FN]]({{%.*}})
// CHECK: [[F_CONV:%.*]] = convert_function [[F_ORIG]]
// CHECK: [[F_ADDR:%.*]] = struct_element_addr {{%.*}} : $*Foo<Int, Int>, #Foo.f
// CHECK: assign [[F_CONV]] to [[F_ADDR]]
func setF(_ x: inout Foo<Int, Int>, f: @escaping (Int) -> Int) {
x.f = f
}
func inOutFunc(_ f: inout ((Int) -> Int)) { }
// CHECK-LABEL: sil hidden [ossa] @$s20property_abstraction6inOutF{{[_0-9a-zA-Z]*}}F :
// CHECK: bb0([[ARG:%.*]] : @guaranteed $Foo<Int, Int>):
// CHECK: [[XBOX:%.*]] = alloc_box ${ var Foo<Int, Int> }, var, name "x"
// CHECK: [[XBOX_LIFETIME:%[^,]+]] = begin_borrow [lexical] [var_decl] [[XBOX]]
// CHECK: [[XBOX_PB:%.*]] = project_box [[XBOX_LIFETIME]] : ${ var Foo<Int, Int> }, 0
// CHECK: [[ARG_COPY:%.*]] = copy_value [[ARG]]
// CHECK: store [[ARG_COPY]] to [init] [[XBOX_PB]]
// CHECK: [[WRITE:%.*]] = begin_access [modify] [unknown] [[XBOX_PB]] : $*Foo<Int, Int>
// CHECK: [[F_ADDR:%.*]] = struct_element_addr [[WRITE]] : $*Foo<Int, Int>, #Foo.f
// CHECK: [[F_SUBST_MAT:%.*]] = alloc_stack
// CHECK: [[F_ORIG:%.*]] = load [copy] [[F_ADDR]]
// CHECK: [[F_CONV:%.*]] = convert_function [[F_ORIG]]
// CHECK: [[REABSTRACT_FN:%.*]] = function_ref @$s{{.*}}TR :
// CHECK: [[F_SUBST_IN:%.*]] = partial_apply [callee_guaranteed] [[REABSTRACT_FN]]([[F_CONV]])
// CHECK: store [[F_SUBST_IN]] to [init] [[F_SUBST_MAT]]
// CHECK: [[INOUTFUNC:%.*]] = function_ref @$s20property_abstraction9inOutFunc{{[_0-9a-zA-Z]*}}F
// CHECK: apply [[INOUTFUNC]]([[F_SUBST_MAT]])
// CHECK: [[F_SUBST_OUT:%.*]] = load [take] [[F_SUBST_MAT]]
// CHECK: [[REABSTRACT_FN:%.*]] = function_ref @$s{{.*}}TR :
// CHECK: [[F_ORIG:%.*]] = partial_apply [callee_guaranteed] [[REABSTRACT_FN]]([[F_SUBST_OUT]])
// CHECK: [[F_CONV:%.*]] = convert_function [[F_ORIG]]
// CHECK: assign [[F_CONV]] to [[F_ADDR]]
// CHECK: end_borrow [[XBOX_LIFETIME]]
// CHECK: destroy_value [[XBOX]]
// CHECK: } // end sil function '$s20property_abstraction6inOutF{{[_0-9a-zA-Z]*}}F'
func inOutF(_ x: Foo<Int, Int>) {
var x = x
inOutFunc(&x.f)
}
// Don't produce a writeback for generic lvalues when there's no real
// abstraction difference. <rdar://problem/16530674>
// CHECK-LABEL: sil hidden [ossa] @$s20property_abstraction23noAbstractionDifference{{[_0-9a-zA-Z]*}}F
func noAbstractionDifference(_ x: Foo<Int, Int>) {
var x = x
// CHECK: [[ADDR:%.*]] = struct_element_addr {{%.*}}, #Foo.g
// CHECK: apply {{%.*}}([[ADDR]])
x.g.foo()
}
protocol P {}
struct AddressOnlyLet<T> {
let f: (T) -> T
let makeAddressOnly: P
}
// CHECK-LABEL: sil hidden [ossa] @$s20property_abstraction34getAddressOnlyReabstractedProperty{{[_0-9a-zA-Z]*}}F : $@convention(thin) (@in_guaranteed AddressOnlyLet<Int>) -> @owned @callee_guaranteed (Int) -> Int
// CHECK: bb0([[ARG:%.*]] : $*AddressOnlyLet<Int>):
// CHECK: [[CLOSURE_ADDR:%.*]] = struct_element_addr {{%.*}} : $*AddressOnlyLet<Int>, #AddressOnlyLet.f
// CHECK: [[CLOSURE_ORIG:%.*]] = load [copy] [[CLOSURE_ADDR]]
// CHECK: [[CLOSURE_CONV:%.*]] = convert_function [[CLOSURE_ORIG]]
// CHECK: [[REABSTRACT:%.*]] = function_ref
// CHECK: [[CLOSURE_SUBST:%.*]] = partial_apply [callee_guaranteed] [[REABSTRACT]]([[CLOSURE_CONV]])
// CHECK-NOT: destroy_addr [[ARG]]
// CHECK: return [[CLOSURE_SUBST]]
// CHECK: } // end sil function '$s20property_abstraction34getAddressOnlyReabstractedProperty{{[_0-9a-zA-Z]*}}F'
func getAddressOnlyReabstractedProperty(_ x: AddressOnlyLet<Int>) -> (Int) -> Int {
return x.f
}
enum Bar<T, U> {
case F((T) -> U)
}
func getF(_ x: Bar<Int, Int>) -> (Int) -> Int {
switch x {
case .F(var f):
return f
}
}
func makeF(_ f: @escaping (Int) -> Int) -> Bar<Int, Int> {
return Bar.F(f)
}
struct ArrayLike<T> {
subscript(x: ()) -> T { get {} set {} }
}
typealias Test20341012 = (title: (), action: () -> ())
struct T20341012 {
private var options: ArrayLike<Test20341012> { get {} set {} }
// CHECK-LABEL: sil hidden [ossa] @$s20property_abstraction9T20341012V1t{{[_0-9a-zA-Z]*}}F
// CHECK: [[TMP1:%.*]] = alloc_stack $(title: (), action: @callee_guaranteed @substituted <τ_0_0> () -> @out τ_0_0 for <()>)
// CHECK: apply {{.*}}<(title: (), action: () -> ())>([[TMP1]],
mutating func t() {
_ = self.options[()].title
}
}
class MyClass {}
// When simply assigning to a property, reabstract the r-value and assign
// to the base instead of materializing and then assigning.
protocol Factory {
associatedtype Product
var builder : () -> Product { get set }
}
func setBuilder<F: Factory>(_ factory: inout F) where F.Product == MyClass {
factory.builder = { return MyClass() }
}
// CHECK: sil hidden [ossa] @$s20property_abstraction10setBuilder{{[_0-9a-zA-Z]*}}F : $@convention(thin) <F where F : Factory, F.Product == MyClass> (@inout F) -> ()
// CHECK: bb0(%0 : $*F):
// CHECK: [[F0:%.*]] = function_ref @$s20property_abstraction10setBuilder{{[_0-9a-zA-Z]*}} :
// CHECK: [[F0_THICK:%.*]] = thin_to_thick_function [[F0]]
// CHECK: [[WRITE:%.*]] = begin_access [modify] [unknown] %0 : $*F
// CHECK: [[SETTER:%.*]] = witness_method $F, #Factory.builder!setter
// CHECK: apply [[SETTER]]<F>([[F0_THICK]], [[WRITE]])
|
