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// RUN: %target-sil-opt -module-name Swift -enable-sil-verify-all -semantic-arc-opts -sil-semantic-arc-peepholes-redundant-copyvalue-elim %s | %FileCheck %s
// REQUIRES: swift_stdlib_asserts
// NOTE: Some of our tests here depend on borrow elimination /not/ running!
// Please do not add it to clean up the IR like we did in
// semanticarcopts-loadcopy-to-loadborrow!
sil_stage canonical
import Builtin
//////////////////
// Declarations //
//////////////////
typealias AnyObject = Builtin.AnyObject
enum MyNever {}
enum FakeOptional<T> {
case none
case some(T)
}
sil [ossa] @guaranteed_user : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
sil [ossa] @owned_user : $@convention(thin) (@owned Builtin.NativeObject) -> ()
sil [ossa] @get_owned_obj : $@convention(thin) () -> @owned Builtin.NativeObject
sil [ossa] @unreachable_guaranteed_user : $@convention(thin) (@guaranteed Builtin.NativeObject) -> MyNever
sil [ossa] @inout_user : $@convention(thin) (@inout FakeOptional<NativeObjectPair>) -> ()
sil [ossa] @get_native_object : $@convention(thin) () -> @owned Builtin.NativeObject
struct NativeObjectPair {
var obj1 : Builtin.NativeObject
var obj2 : Builtin.NativeObject
}
sil [ossa] @get_object_pair : $@convention(thin) () -> @owned NativeObjectPair
struct FakeOptionalNativeObjectPairPair {
var pair1 : FakeOptional<NativeObjectPair>
var pair2 : FakeOptional<NativeObjectPair>
}
sil [ossa] @inout_user2 : $@convention(thin) (@inout FakeOptionalNativeObjectPairPair) -> ()
sil [ossa] @get_nativeobject_pair : $@convention(thin) () -> @owned NativeObjectPair
sil [ossa] @consume_nativeobject_pair : $@convention(thin) (@owned NativeObjectPair) -> ()
protocol MyFakeAnyObject : Klass {
func myFakeMethod()
}
final class Klass {
var base: Klass
let baseLet: Klass
}
extension Klass : MyFakeAnyObject {
func myFakeMethod()
}
sil [ossa] @guaranteed_klass_user : $@convention(thin) (@guaranteed Klass) -> ()
sil [ossa] @guaranteed_fakeoptional_klass_user : $@convention(thin) (@guaranteed FakeOptional<Klass>) -> ()
sil [ossa] @guaranteed_fakeoptional_classlet_user : $@convention(thin) (@guaranteed FakeOptional<ClassLet>) -> ()
struct MyInt {
var value: Builtin.Int32
}
struct StructWithDataAndOwner {
var data : Builtin.Int32
var owner : Klass
}
struct StructMemberTest {
var c : Klass
var s : StructWithDataAndOwner
var t : (Builtin.Int32, StructWithDataAndOwner)
}
class ClassLet {
@_hasStorage let aLet: Klass
@_hasStorage var aVar: Klass
@_hasStorage let aLetTuple: (Klass, Klass)
@_hasStorage let anOptionalLet: FakeOptional<Klass>
@_hasStorage let anotherLet: ClassLet
}
class SubclassLet: ClassLet {}
sil_global [let] @a_let_global : $Klass
sil_global @a_var_global : $Klass
enum EnumWithIndirectCase {
case first
indirect case second(Builtin.NativeObject)
}
struct StructWithEnumWithIndirectCaseField {
var i: Builtin.Int23
var field : EnumWithIndirectCase
}
sil [ossa] @get_fakeoptional_nativeobject : $@convention(thin) () -> @owned FakeOptional<Builtin.NativeObject>
struct NativeObjectWrapper {
var innerWrapper : Builtin.NativeObject
}
sil @owned_user_object_pair : $@convention(thin) (@owned NativeObjectPair) -> ()
///////////
// Tests //
///////////
// Make sure we do not eliminate copies where only the destroy_value is outside
// of the lifetime of the parent value, but a begin_borrow extends the lifetime
// of the value. This is an optimization that can only be performed via lifetime
// joining.
//
// CHECK-LABEL: sil [ossa] @simple_recursive_copy_case_destroying_use_out_of_lifetime : $@convention(thin) () -> () {
// CHECK: copy_value
// CHECK: } // end sil function 'simple_recursive_copy_case_destroying_use_out_of_lifetime'
sil [ossa] @simple_recursive_copy_case_destroying_use_out_of_lifetime : $@convention(thin) () -> () {
bb0:
%f = function_ref @get_object_pair : $@convention(thin) () -> @owned NativeObjectPair
%pair = apply %f() : $@convention(thin) () -> @owned NativeObjectPair
%pairBorrow = begin_borrow %pair : $NativeObjectPair
%3 = struct_extract %pairBorrow : $NativeObjectPair, #NativeObjectPair.obj1
%gUserFun = function_ref @guaranteed_user : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
apply %gUserFun(%3) : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
end_borrow %pairBorrow : $NativeObjectPair
cond_br undef, bb1, bb2
bb1:
%1 = copy_value %pair : $NativeObjectPair
%2 = begin_borrow %1 : $NativeObjectPair
destroy_value %pair : $NativeObjectPair
%3a = struct_extract %2 : $NativeObjectPair, #NativeObjectPair.obj1
apply %gUserFun(%3a) : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
end_borrow %2 : $NativeObjectPair
destroy_value %1 : $NativeObjectPair
br bb3
bb2:
destroy_value %pair : $NativeObjectPair
br bb3
bb3:
%9999 = tuple()
return %9999 : $()
}
// Second version of the test that consumes the pair in case we make the
// lifetime joining smart enough to handle the original case.
//
// CHECK-LABEL: sil [ossa] @simple_recursive_copy_case_destroying_use_out_of_lifetime_2 : $@convention(thin) () -> () {
// CHECK: copy_value
// CHECK: } // end sil function 'simple_recursive_copy_case_destroying_use_out_of_lifetime_2'
sil [ossa] @simple_recursive_copy_case_destroying_use_out_of_lifetime_2 : $@convention(thin) () -> () {
bb0:
%f = function_ref @get_object_pair : $@convention(thin) () -> @owned NativeObjectPair
%pair = apply %f() : $@convention(thin) () -> @owned NativeObjectPair
%pairBorrow = begin_borrow %pair : $NativeObjectPair
%3 = struct_extract %pairBorrow : $NativeObjectPair, #NativeObjectPair.obj1
%gUserFun = function_ref @guaranteed_user : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
apply %gUserFun(%3) : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
end_borrow %pairBorrow : $NativeObjectPair
cond_br undef, bb1, bb2
bb1:
%1 = copy_value %pair : $NativeObjectPair
%2 = begin_borrow %1 : $NativeObjectPair
destroy_value %pair : $NativeObjectPair
%3a = struct_extract %2 : $NativeObjectPair, #NativeObjectPair.obj1
apply %gUserFun(%3a) : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
end_borrow %2 : $NativeObjectPair
destroy_value %1 : $NativeObjectPair
br bb3
bb2:
%consumePair = function_ref @consume_nativeobject_pair : $@convention(thin) (@owned NativeObjectPair) -> ()
apply %consumePair(%pair) : $@convention(thin) (@owned NativeObjectPair) -> ()
br bb3
bb3:
%9999 = tuple()
return %9999 : $()
}
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