| // RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir %s | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%target-ptrsize |
| |
| class C {} |
| |
| struct SSing { var x: Int64 } |
| struct SMult { var x, y: Int64 } |
| struct SMult2 { var x, y: C } |
| struct SMult3 { var x, y: C } |
| |
| struct GSing<T> { var x: T } |
| struct GMult<T> { var x, y: T } |
| |
| enum ESing { case X(Int64) } |
| enum EMult { case X(Int64), Y(Int64) } |
| |
| @_alignment(4) |
| struct CommonLayout { var x,y,z,w: Int8 } |
| |
| // CHECK: @_T011type_layout14TypeLayoutTestVMP = internal global {{.*}} @create_generic_metadata_TypeLayoutTest |
| // CHECK: define private %swift.type* @create_generic_metadata_TypeLayoutTest |
| struct TypeLayoutTest<T> { |
| // -- dynamic layout, projected from metadata |
| // CHECK: [[T0:%.*]] = bitcast %swift.type* %T to i8*** |
| // CHECK: [[T1:%.*]] = getelementptr inbounds i8**, i8*** [[T0]], {{i32|i64}} -1 |
| // CHECK: [[T_VALUE_WITNESSES:%.*]] = load i8**, i8*** [[T1]] |
| // CHECK: [[T_LAYOUT:%.*]] = getelementptr inbounds i8*, i8** [[T_VALUE_WITNESSES]], i32 11 |
| // CHECK: store i8** [[T_LAYOUT]] |
| var z: T |
| // -- native class, use standard NativeObject value witness |
| // CHECK: store i8** getelementptr inbounds (i8*, i8** @_T0BoWV, i32 11) |
| var a: C |
| // -- Single-element struct, shares layout of its field (Builtin.Int64) |
| // CHECK: store i8** getelementptr inbounds (i8*, i8** @_T0Bi64_WV, i32 11) |
| var c: SSing |
| // -- Multi-element structs use open-coded layouts |
| // CHECK: store i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @type_layout_16_8_0_pod, i32 0, i32 0) |
| var d: SMult |
| // CHECK-64: store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @type_layout_16_8_[[REF_XI:[0-9a-f]+]]_bt, i32 0, i32 0) |
| // CHECK-32: store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @type_layout_8_4_[[REF_XI:[0-9a-f]+]]_bt, i32 0, i32 0) |
| var e: SMult2 |
| // CHECK-64: store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @type_layout_16_8_[[REF_XI]]_bt, i32 0, i32 0) |
| // CHECK-32: store i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @type_layout_8_4_[[REF_XI]]_bt, i32 0, i32 0) |
| var f: SMult3 |
| // -- Single-case enum, shares layout of its field (Builtin.Int64) |
| // CHECK: store i8** getelementptr inbounds (i8*, i8** @_T0Bi64_WV, i32 11) |
| var g: ESing |
| // -- Multi-case enum, open-coded layout |
| // CHECK: store i8** getelementptr inbounds ([3 x i8*], [3 x i8*]* @type_layout_9_8_0_pod, i32 0, i32 0) |
| var h: EMult |
| // -- Single-element generic struct, shares layout of its field (T) |
| // CHECK: [[T_LAYOUT:%.*]] = getelementptr inbounds i8*, i8** [[T_VALUE_WITNESSES]], i32 11 |
| // CHECK: store i8** [[T_LAYOUT]] |
| var i: GSing<T> |
| // -- Multi-element generic struct, need to derive from metadata |
| // CHECK: [[METADATA:%.*]] = call %swift.type* @_T011type_layout5GMultVMa |
| // CHECK: [[T0:%.*]] = bitcast %swift.type* [[METADATA]] to i8*** |
| // CHECK: [[T1:%.*]] = getelementptr inbounds i8**, i8*** [[T0]], {{i32|i64}} -1 |
| // CHECK: [[VALUE_WITNESSES:%.*]] = load i8**, i8*** [[T1]] |
| // CHECK: [[LAYOUT:%.*]] = getelementptr inbounds i8*, i8** [[VALUE_WITNESSES]], i32 11 |
| // CHECK: store i8** [[LAYOUT]] |
| var j: GMult<T> |
| // -- Common layout, reuse common value witness table layout |
| // CHECK: store i8** getelementptr (i8*, i8** @_T0Bi32_WV, i32 11) |
| var k: CommonLayout |
| } |