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subobject_borrowing.sil
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// RUN: %target-sil-opt -sil-ownership-verifier-enable-testing -ownership-verifier-textual-error-dumper -enable-sil-verify-all=0 -o /dev/null %s 2>&1 | %FileCheck %s
// REQUIRES: asserts
sil_stage canonical
import Builtin
//////////////////
// Declarations //
//////////////////
enum Optional<T> {
case some(T)
case none
}
struct A {
var ptr: Builtin.NativeObject
var ptr2: Optional<(Builtin.NativeObject, Builtin.NativeObject)>
}
struct B {
var a1: A
var a2: A
}
sil @owned_use_of_nativeobject : $@convention(thin) (@owned Builtin.NativeObject) -> ()
sil @guaranteed_use_of_nativeobject : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
///////////
// Tests //
///////////
//===---
// begin_borrow subobject tests
//
sil [ossa] @value_subobject_without_corresponding_end_borrow : $@convention(thin) (@owned B) -> () {
bb0(%0 : @owned $B):
%1 = begin_borrow %0 : $B
%2 = struct_extract %1 : $B, #B.a1
%3 = struct_extract %2 : $A, #A.ptr
%4 = function_ref @guaranteed_use_of_nativeobject : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
apply %4(%3) : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
end_borrow %1 : $B
destroy_value %0 : $B
%9999 = tuple()
return %9999 : $()
}
// We fail here since we have a use of our subobject after the end_borrow which
// ends the borrow's lifetime.
//
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'value_subobject_with_use_after_end_borrow'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %1 = begin_borrow %0 : $B
// CHECK: Consuming User: end_borrow %1 : $B
// CHECK: Non Consuming User: %4 = struct_extract %2 : $A, #A.ptr
// CHECK: Block: bb0
// CHECK: Error#: 0. End Error in Function: 'value_subobject_with_use_after_end_borrow'
sil [ossa] @value_subobject_with_use_after_end_borrow : $@convention(thin) (@owned B) -> () {
bb0(%0 : @owned $B):
%1 = begin_borrow %0 : $B
%2 = struct_extract %1 : $B, #B.a1
end_borrow %1 : $B
%3 = struct_extract %2 : $A, #A.ptr
destroy_value %0 : $B
%9999 = tuple()
return %9999 : $()
}
// We fail here since we have a destroy of our subobject. The idea is to make
// sure that our special handling code for subobjects here does not stop us from
// detecting violations of ownership kinds on the subobjects.
//
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'value_subobject_with_destroy_of_subobject'
// CHECK: Have operand with incompatible ownership?!
// CHECK: Value: %5 = tuple_extract %4 : $(Builtin.NativeObject, Builtin.NativeObject), 1
// CHECK: User: destroy_value %5 : $Builtin.NativeObject
// CHECK: Conv: guaranteed
// CHECK: Error#: 0. End Error in Function: 'value_subobject_with_destroy_of_subobject'
//
// CHECK-NOT: Error#: {{[0-9][0-9]+}}. Begin Error in Function: 'value_subobject_with_destroy_of_subobject'
sil [ossa] @value_subobject_with_destroy_of_subobject : $@convention(thin) (@owned B) -> () {
bb0(%0 : @owned $B):
%1 = begin_borrow %0 : $B
%2 = struct_extract %1 : $B, #B.a1
%3 = struct_extract %2 : $A, #A.ptr2
%4 = unchecked_enum_data %3 : $Optional<(Builtin.NativeObject, Builtin.NativeObject)>, #Optional.some!enumelt
%5 = tuple_extract %4 : $(Builtin.NativeObject, Builtin.NativeObject), 1
destroy_value %5 : $Builtin.NativeObject
end_borrow %1 : $B
destroy_value %0 : $B
%9999 = tuple()
return %9999 : $()
}
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'value_different_subobject_kinds_multiple_levels'
// CHECK: Found outside of lifetime use?!
// CHECK: Value: %1 = begin_borrow %0 : $B
// CHECK: Consuming User: end_borrow %1 : $B
// CHECK: Non Consuming User: %6 = tuple_extract %4 : $(Builtin.NativeObject, Builtin.NativeObject), 1
// CHECK: Block: bb0
// CHECK: Error#: 0. End Error in Function: 'value_different_subobject_kinds_multiple_levels'
//
// CHECK-NOT: Error#: {{[0-9][0-9]+}}. End Error in Function: 'value_different_subobject_kinds_multiple_levels'
sil [ossa] @value_different_subobject_kinds_multiple_levels : $@convention(thin) (@owned B) -> () {
bb0(%0 : @owned $B):
%1 = begin_borrow %0 : $B
%2 = struct_extract %1 : $B, #B.a1
%3 = struct_extract %2 : $A, #A.ptr2
%4 = unchecked_enum_data %3 : $Optional<(Builtin.NativeObject, Builtin.NativeObject)>, #Optional.some!enumelt
end_borrow %1 : $B
%5 = tuple_extract %4 : $(Builtin.NativeObject, Builtin.NativeObject), 1
destroy_value %0 : $B
%9999 = tuple()
return %9999 : $()
}
//===---
// Function Argument guaranteed tests
//
// CHECK-NOT: Begin Error in Function: 'funcarg_subobject_basic_test'
sil [ossa] @funcarg_subobject_basic_test : $@convention(thin) (@guaranteed B) -> () {
bb0(%0 : @guaranteed $B):
%2 = struct_extract %0 : $B, #B.a1
%3 = struct_extract %2 : $A, #A.ptr
%4 = function_ref @guaranteed_use_of_nativeobject : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
apply %4(%3) : $@convention(thin) (@guaranteed Builtin.NativeObject) -> ()
%9999 = tuple()
return %9999 : $()
}
// We fail here since we have a destroy of our subobject. The idea is to make
// sure that our special handling code for subobjects here does not stop us from
// detecting violations of ownership kinds on the subobjects.
//
// CHECK-LABEL: Error#: 0. Begin Error in Function: 'funcarg_subobject_with_destroy_of_subobject'
// CHECK: Have operand with incompatible ownership?!
// CHECK: Value: %4 = tuple_extract %3 : $(Builtin.NativeObject, Builtin.NativeObject), 1
// CHECK: User: destroy_value %4 : $Builtin.NativeObject
// CHECK: Conv: guaranteed
// CHECK: Error#: 0. End Error in Function: 'funcarg_subobject_with_destroy_of_subobject'
//
// CHECK-NOT: Error#: {{[0-9][0-9]+}}. End Error in Function: 'funcarg_subobject_with_destroy_of_subobject'
sil [ossa] @funcarg_subobject_with_destroy_of_subobject : $@convention(thin) (@guaranteed B) -> () {
bb0(%0 : @guaranteed $B):
%2 = struct_extract %0 : $B, #B.a1
%3 = struct_extract %2 : $A, #A.ptr2
%4 = unchecked_enum_data %3 : $Optional<(Builtin.NativeObject, Builtin.NativeObject)>, #Optional.some!enumelt
%5 = tuple_extract %4 : $(Builtin.NativeObject, Builtin.NativeObject), 1
destroy_value %5 : $Builtin.NativeObject
%9999 = tuple()
return %9999 : $()
}