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// RUN: %target-swift-frontend -primary-file %s -emit-ir -g -o - | %FileCheck %s
protocol IntegerArithmetic {
static func uncheckedSubtract(_ lhs: Self, rhs: Self) -> (Self, Bool)
}
protocol RandomAccessIndex : IntegerArithmetic {
associatedtype Distance : IntegerArithmetic
static func uncheckedSubtract(_ lhs: Self, rhs: Self) -> (Distance, Bool)
}
// archetype.ExistentialTuple <A : RandomAccessIndex, B>(x : A, y : A) -> B
// CHECK: !DISubprogram(name: "ExistentialTuple", linkageName: "$s9archetype16ExistentialTuple
// CHECK-SAME: line: [[@LINE+2]]
// CHECK-SAME: DISPFlagDefinition
func ExistentialTuple<T: RandomAccessIndex>(_ x: T, y: T) -> T.Distance {
// (B, Swift.Bool)
// CHECK: !DILocalVariable(name: "tmp"
// CHECK-SAME: line: [[@LINE+2]]
// CHECK-SAME: type: ![[TT:[0-9]+]]
var tmp : (T.Distance, Bool) = T.uncheckedSubtract(x, rhs: y)
return _overflowChecked((tmp.0, tmp.1))
}
// CHECK: ![[TT]] = !DICompositeType(tag: DW_TAG_structure_type,
// CHECK-SAME: name: "$s8Distance9archetype17RandomAccessIndexPQz_SbtD"
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