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swift-mirror/test/IRGen/class_update_callback_with_fixed_layout.sil
Ben Langmuir 7d11d43d6d [test] Add explicit targets to tests depending on the default 
Add specific deployment target versions to some tests that need to test
10.x-specific behaviours and are currently depending on the default
deployment target.

Certain tests were only checking either the stable or unstable ABI
depending on the platform the test was running. In those cases I doubled
up the checks so that we would test both cases on platforms that
supported it. This might use a bit of extra time on targets that only
support the stable ABI, but it seemed worth it for the additional
coverage in CI.
2024-08-29 07:55:14 -07:00

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// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend -target %target-pre-stable-abi-triple -emit-module -enable-library-evolution -emit-module-path=%t/resilient_struct.swiftmodule -module-name=resilient_struct %S/../Inputs/resilient_struct.swift
// RUN: %target-swift-frontend -target %target-pre-stable-abi-triple -I %t -emit-ir -enable-library-evolution %s -read-legacy-type-info-path=%S/Inputs/legacy_type_info/a.yaml | %FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-%target-ptrsize -DINT=i%target-ptrsize
// RUN: %target-swift-frontend -target %target-pre-stable-abi-triple -I %t -emit-ir -enable-library-evolution %s -read-legacy-type-info-path=%S/Inputs/legacy_type_info/a.yaml
// RUN: %target-swift-frontend -target %target-pre-stable-abi-triple -I %t -emit-ir -enable-library-evolution -O %s -read-legacy-type-info-path=%S/Inputs/legacy_type_info/a.yaml
// Verify that this feature works with the VFS.
// RUN: sed -e "s|INPUT_DIR|%/S/Inputs|g" -e "s|OUT_DIR|%/t|g" %S/Inputs/legacy_type_info/vfsoverlay.yaml > %t/overlay.yaml
// RUN: %target-swift-frontend -target %target-pre-stable-abi-triple -vfsoverlay %/t/overlay.yaml -I %t -emit-ir -enable-library-evolution -O %s -read-legacy-type-info-path=%t/a_moved.yaml
// We only use fragile class layouts when Objective-C interop is enabled.
// REQUIRES: objc_interop
// REQUIRES: CPU=x86_64
// UNSUPPORTED: swift_only_stable_abi
sil_stage canonical
import Builtin
import Swift
import SwiftShims
import resilient_struct
public class ClassWithResilientField {
var first: Int
var second: Size
var third: Int
init(x: Int, y: Size, z: Int)
}
sil_vtable ClassWithResilientField {}
public class SubclassOfClassWithResilientField : ClassWithResilientField {}
sil_vtable SubclassOfClassWithResilientField {}
// Field offsets are statically known:
// CHECK-DAG: @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldC5firstSivpWvd" = hidden constant i64 16, align 8
// CHECK-DAG: @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldC6second16resilient_struct4SizeVvpWvd" = hidden global i64 24, align 8
// CHECK-DAG: @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldC5thirdSivpWvd" = hidden global i64 40, align 8
// RO-data for ClassWithResilientField:
// CHECK-LABEL: @_DATA__TtC39class_update_callback_with_fixed_layout23ClassWithResilientField = internal constant {
// -- flags: compiled with ARC, has update callback
// CHECK-SAME: i32 192,
// -- the update callback
// CHECK-SAME: @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMU"
// CHECK-SAME: }, section "__DATA, {{.*}}", align 8
// Class has static metadata:
// CHECK-LABEL: @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMf"
// Subclass also has static metadata:
// CHECK-LABEL: @"$s39class_update_callback_with_fixed_layout33SubclassOfClassWithResilientFieldCMf" = internal global <{{.*}}> <{
// Superclass field is filled in statically:
// CHECK-SAME: @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMf"
// CHECK-SAME: }>
// rdar://problem/41308521 -- enum lowering needs to pretend payloads are
// resilient and not use spare bits, even when bypassing resilience while
// lowering class fields.
// Because ResilientRef is resilient, the enum stores the tag out-of-line,
// rather than packing it into the spare bits of the payload. Make sure that
// this layout is maintained even when the enum is a class field, which
// forces it to be lowered without resilience.
enum EnumWithResilientPayload {
case none
case some(ClassWithResilientEnum)
case data(ResilientRef)
}
// Note that 'second' is at offset 25, which means 'first' is 9 bytes in size;
// an 8 byte payload and an out-of-line tag, as expected.
public class ClassWithResilientEnum {
var first: EnumWithResilientPayload
var second: Int8
init(x: EnumWithResilientPayload, y: Int8)
}
sil_vtable ClassWithResilientEnum {}
// Field offsets are statically known:
// CHECK-LABEL: @"$s39class_update_callback_with_fixed_layout22ClassWithResilientEnumC5firstAA0jhI7PayloadOvpWvd" = hidden global i64 16, align 8
// CHECK-LABEL: @"$s39class_update_callback_with_fixed_layout22ClassWithResilientEnumC6seconds4Int8VvpWvd" = hidden global i64 25, align 8
// Make sure extra inhabitants work when reading a legacy layout -- the
// Optional<ResilientRef> should be 8 bytes in size, not 9
public class ClassWithResilientRef {
var first: ResilientRef?
var second: Int
}
sil_vtable ClassWithResilientRef {}
// Field offsets are statically known:
// CHECK-LABEL: @"$s39class_update_callback_with_fixed_layout21ClassWithResilientRefC5first16resilient_struct0iJ0VSgvpWvd" = hidden global i64 16, align 8
// CHECK-LABEL: @"$s39class_update_callback_with_fixed_layout21ClassWithResilientRefC6secondSivpWvd" = hidden global i64 24, align 8
// When allocating a class with resiliently-sized fields, we must still load
// the size and alignment from metadata, because its metadata may have been
// re-initialized.
// CHECK-LABEL: define {{(dllexport )?}}{{(protected )?}}swiftcc void @allocClassWithResilientField()
sil @allocClassWithResilientField : $@convention(thin) () -> () {
bb0:
// CHECK: [[T0:%.*]] = call swiftcc %swift.metadata_response @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMa"(i64 0)
// CHECK-NEXT: [[META:%.*]] = extractvalue %swift.metadata_response [[T0]], 0
// CHECK-NEXT: [[SIZE_ADDR:%.*]] = getelementptr inbounds i8, ptr [[META]], i32 48
// CHECK-NEXT: [[SIZE_2:%.*]] = load i32, ptr [[SIZE_ADDR]], align 8
// CHECK-NEXT: [[SIZE:%.*]] = zext i32 [[SIZE_2]] to i64
// CHECK-NEXT: [[ALIGN_ADDR:%.*]] = getelementptr inbounds i8, ptr [[META]], i32 52
// CHECK-NEXT: [[ALIGN_2:%.*]] = load i16, ptr [[ALIGN_ADDR]], align 4
// CHECK-NEXT: [[ALIGN:%.*]] = zext i16 [[ALIGN_2]] to i64
// CHECK-NEXT: [[ALLOC:%.*]] = call noalias ptr @swift_allocObject(ptr [[META]], i64 [[SIZE]], i64 [[ALIGN]])
%c = alloc_ref $ClassWithResilientField
// ... dealloc_ref also does the same thing.
// CHECK-NEXT: [[META:%.*]] = load ptr, ptr {{.*}}, align 8
// CHECK-NEXT: [[SIZE_ADDR:%.*]] = getelementptr inbounds i8, ptr [[META]], i32 48
// CHECK-NEXT: [[SIZE_2:%.*]] = load i32, ptr [[SIZE_ADDR]], align 8
// CHECK-NEXT: [[SIZE:%.*]] = zext i32 [[SIZE_2]] to i64
// CHECK-NEXT: [[ALIGN_ADDR:%.*]] = getelementptr inbounds i8, ptr [[META]], i32 52
// CHECK-NEXT: [[ALIGN_2:%.*]] = load i16, ptr [[ALIGN_ADDR]], align 4
// CHECK-NEXT: [[ALIGN:%.*]] = zext i16 [[ALIGN_2]] to i64
// CHECK-NEXT: call void @swift_deallocClassInstance(ptr [[ALLOC]], i64 [[SIZE]], i64 [[ALIGN]])
dealloc_ref %c : $ClassWithResilientField
%result = tuple ()
return %result : $()
}
// Metadata accessor for ClassWithResilientField uses singleton initialization:
// CHECK-LABEL: define swiftcc %swift.metadata_response @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMa
// CHECK: [[CACHE:%.*]] = load ptr, ptr @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMl"
// CHECK-NEXT: [[COND:%.*]] = icmp eq ptr [[CACHE]], null
// CHECK-NEXT: br i1 [[COND]], label %cacheIsNull, label %cont
// CHECK: cacheIsNull:
// CHECK-NEXT: [[RESPONSE:%.*]] = call swiftcc %swift.metadata_response @swift_getSingletonMetadata([[INT]] %0, ptr @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMn")
// CHECK-NEXT: [[METADATA:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 0
// CHECK-NEXT: [[STATUS:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 1
// CHECK-NEXT: br label %cont
// CHECK: cont:
// CHECK-NEXT: [[NEW_METADATA:%.*]] = phi ptr [ [[CACHE]], %entry ], [ [[METADATA]], %cacheIsNull ]
// CHECK-NEXT: [[NEW_STATUS:%.*]] = phi [[INT]] [ 0, %entry ], [ [[STATUS]], %cacheIsNull ]
// CHECK-NEXT: [[T0:%.*]] = insertvalue %swift.metadata_response undef, ptr [[NEW_METADATA]], 0
// CHECK-NEXT: [[T1:%.*]] = insertvalue %swift.metadata_response [[T0]], [[INT]] [[NEW_STATUS]], 1
// CHECK-NEXT: ret %swift.metadata_response [[T1]]
// Accessing a field whose offset depends on resilient types should
// use the field offset global.
// CHECK-LABEL: define swiftcc {{(dllexport )?}}{{(protected )?}}i64 @accessClassWithResilientField(ptr %0)
sil @accessClassWithResilientField : $@convention(thin) (@guaranteed ClassWithResilientField) -> Int {
bb0(%0 : $ClassWithResilientField):
// CHECK: [[OFFSET:%.*]] = load i64, ptr @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldC5thirdSivpWvd", align 8
// CHECK-NEXT: [[FIELD_ADDR:%.*]] = getelementptr inbounds i8, ptr %0, i64 [[OFFSET]]
// CHECK-NEXT: [[FIELD_PTR:%.*]] = getelementptr inbounds %TSi, ptr [[FIELD_ADDR]], i32 0, i32 0
%1 = ref_element_addr %0 : $ClassWithResilientField, #ClassWithResilientField.third
// CHECK-NEXT: [[VALUE:%.*]] = load i64, ptr [[FIELD_PTR]], align 8
%2 = load %1 : $*Int
// CHECK-NEXT: ret i64 [[VALUE]]
return %2 : $Int
}
// Objective-C metadata update callback function for ClassWithResilientField:
// CHECK-LABEL: define internal ptr @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMU"(ptr %0, ptr %1)
// CHECK: entry:
// CHECK-NEXT: [[RESPONSE:%.*]] = call swiftcc %swift.metadata_response @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMa"(i64 0)
// CHECK-NEXT: [[METADATA:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 0
// CHECK-NEXT: ret ptr [[METADATA]]
// Metadata initialization function for ClassWithResilientField calls swift_updateClassMetadata2():
// CHECK-LABEL: define internal swiftcc %swift.metadata_response @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldCMr"(ptr %0, ptr %1, ptr %2)
// CHECK: entry:
// CHECK-NEXT: [[FIELDS:%.*]] = alloca [3 x ptr]
// CHECK-NEXT: [[FIELDS_DEST:%.*]] = getelementptr inbounds [[INT]], ptr %0, [[INT]] {{10|13}}
// CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 {{12|24}}, ptr [[FIELDS]])
// CHECK-NEXT: [[FIELDS_PTR:%.*]] = getelementptr inbounds [3 x ptr], ptr [[FIELDS]], i32 0, i32 0
// CHECK: [[T0:%.*]] = call swiftcc %swift.metadata_response @"$s16resilient_struct4SizeVMa"([[INT]] 319)
// CHECK-NEXT: [[SIZE_METADATA:%.*]] = extractvalue %swift.metadata_response [[T0]], 0
// CHECK-NEXT: [[STATUS:%.*]] = extractvalue %swift.metadata_response [[T0]], 1
// CHECK-NEXT: [[RESULT:%.*]] = icmp ule [[INT]] [[STATUS]], 63
// CHECK-NEXT: br i1 [[RESULT]], label %dependency-satisfied, label %metadata-dependencies.cont
// CHECK: dependency-satisfied:
// -- ClassLayoutFlags = 0x100 (HasStaticVTable)
// CHECK: [[T0:%.*]] = call swiftcc %swift.metadata_response @swift_updateClassMetadata2(ptr %0, [[INT]] 256, [[INT]] 3, ptr [[FIELDS_PTR]], ptr [[FIELDS_DEST]])
// CHECK-NEXT: [[INITDEP_METADATA:%.*]] = extractvalue %swift.metadata_response [[T0]], 0
// CHECK-NEXT: [[INITDEP_STATUS:%.*]] = extractvalue %swift.metadata_response [[T0]], 1
// CHECK-NEXT: [[INITDEP_PRESENT:%.*]] = icmp eq ptr [[INITDEP_METADATA]], null
// CHECK-NEXT: br i1 [[INITDEP_PRESENT]], label %dependency-satisfied1, label %metadata-dependencies.cont
// CHECK: dependency-satisfied1:
// CHECK-native: [[FIELD_OFFSET:%.*]] = load [[INT]], ptr {{.*}}
// CHECK-native-NEXT: store [[INT]] [[FIELD_OFFSET]], ptr @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldC1s16resilient_struct4SizeVvpWvd"
// CHECK-native: [[FIELD_OFFSET:%.*]] = load [[INT]], ptr {{.*}}
// CHECK-native-NEXT: store [[INT]] [[FIELD_OFFSET]], ptr @"$s39class_update_callback_with_fixed_layout23ClassWithResilientFieldC5colors5Int32VvpWvd"
// CHECK: br label %metadata-dependencies.cont
// CHECK: metadata-dependencies.cont:
// CHECK-NEXT: [[PENDING_METADATA:%.*]] = phi ptr [ [[SIZE_METADATA]], %entry ], [ [[INITDEP_METADATA]], %dependency-satisfied ], [ null, %dependency-satisfied1 ]
// CHECK-NEXT: [[NEW_STATUS:%.*]] = phi [[INT]] [ 63, %entry ], [ [[INITDEP_STATUS]], %dependency-satisfied ], [ 0, %dependency-satisfied1 ]
// CHECK-NEXT: [[T0:%.*]] = insertvalue %swift.metadata_response undef, ptr [[PENDING_METADATA]], 0
// CHECK-NEXT: [[T1:%.*]] = insertvalue %swift.metadata_response [[T0]], [[INT]] [[NEW_STATUS]], 1
// CHECK-NEXT: ret %swift.metadata_response [[T1]]
// Metadata initialization function for SubclassOfClassWithResilientField:
// CHECK-LABEL: define internal swiftcc %swift.metadata_response @"$s39class_update_callback_with_fixed_layout33SubclassOfClassWithResilientFieldCMr"(ptr %0, ptr %1, ptr %2)
// CHECK: entry:
// CHECK-NEXT: [[FIELDS:%.*]] = alloca [0 x ptr]
// CHECK-NEXT: [[FIELDS_DEST:%.*]] = getelementptr inbounds [[INT]], ptr %0, [[INT]] {{11|14}}
// CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 0, ptr [[FIELDS]])
// CHECK-NEXT: [[FIELDS_PTR:%.*]] = getelementptr inbounds [0 x ptr], ptr [[FIELDS]], i32 0, i32 0
// -- ClassLayoutFlags = 0x100 (HasStaticVTable)
// CHECK: [[T0:%.*]] = call swiftcc %swift.metadata_response @swift_updateClassMetadata2(ptr %0, [[INT]] 256, [[INT]] 0, ptr [[FIELDS_PTR]], ptr [[FIELDS_DEST]])
// CHECK-NEXT: [[INITDEP_METADATA:%.*]] = extractvalue %swift.metadata_response [[T0]], 0
// CHECK-NEXT: [[INITDEP_STATUS:%.*]] = extractvalue %swift.metadata_response [[T0]], 1
// CHECK-NEXT: [[INITDEP_PRESENT:%.*]] = icmp eq ptr [[INITDEP_METADATA]], null
// CHECK-NEXT: br i1 [[INITDEP_PRESENT]], label %dependency-satisfied, label %metadata-dependencies.cont
// CHECK: dependency-satisfied:
// CHECK: br label %metadata-dependencies.cont
// CHECK: metadata-dependencies.cont:
// CHECK-NEXT: [[PENDING_METADATA:%.*]] = phi ptr [ [[INITDEP_METADATA]], %entry ], [ null, %dependency-satisfied ]
// CHECK-NEXT: [[NEW_STATUS:%.*]] = phi [[INT]] [ [[INITDEP_STATUS]], %entry ], [ 0, %dependency-satisfied ]
// CHECK-NEXT: [[T0:%.*]] = insertvalue %swift.metadata_response undef, ptr [[PENDING_METADATA]], 0
// CHECK-NEXT: [[T1:%.*]] = insertvalue %swift.metadata_response [[T0]], [[INT]] [[NEW_STATUS]], 1
// CHECK-NEXT: ret %swift.metadata_response [[T1]]
// Metadata accessor for ClassWithResilientEnum looks like singleton initialization:
// CHECK-LABEL: define swiftcc %swift.metadata_response @"$s39class_update_callback_with_fixed_layout22ClassWithResilientEnumCMa
// CHECK: [[CACHE:%.*]] = load ptr, ptr @"$s39class_update_callback_with_fixed_layout22ClassWithResilientEnumCMl"
// CHECK-NEXT: [[COND:%.*]] = icmp eq ptr [[CACHE]], null
// CHECK-NEXT: br i1 [[COND]], label %cacheIsNull, label %cont
// CHECK: cacheIsNull:
// CHECK-NEXT: [[RESPONSE:%.*]] = call swiftcc %swift.metadata_response @swift_getSingletonMetadata([[INT]] %0, ptr @"$s39class_update_callback_with_fixed_layout22ClassWithResilientEnumCMn")
// CHECK-NEXT: [[METADATA:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 0
// CHECK-NEXT: [[STATUS:%.*]] = extractvalue %swift.metadata_response [[RESPONSE]], 1
// CHECK-NEXT: br label %cont
// CHECK: cont:
// CHECK-NEXT: [[NEW_METADATA:%.*]] = phi ptr [ [[CACHE]], %entry ], [ [[METADATA]], %cacheIsNull ]
// CHECK-NEXT: [[NEW_STATUS:%.*]] = phi [[INT]] [ 0, %entry ], [ [[STATUS]], %cacheIsNull ]
// CHECK-NEXT: [[T0:%.*]] = insertvalue %swift.metadata_response undef, ptr [[NEW_METADATA]], 0
// CHECK-NEXT: [[T1:%.*]] = insertvalue %swift.metadata_response [[T0]], [[INT]] [[NEW_STATUS]], 1
// CHECK-NEXT: ret %swift.metadata_response [[T1]]
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