| // RUN: %target-swift-frontend -I %S/../Inputs -enable-source-import -emit-silgen -enable-resilience %s | FileCheck %s |
| |
| import resilient_enum |
| |
| // Resilient enums are always address-only, and switches must include |
| // a default case |
| |
| // CHECK-LABEL: sil hidden @_TF15enum_resilience15resilientSwitchFO14resilient_enum6MediumT_ : $@convention(thin) (@in Medium) -> () |
| // CHECK: [[BOX:%.*]] = alloc_stack $Medium |
| // CHECK-NEXT: copy_addr %0 to [initialization] [[BOX]] |
| // CHECK-NEXT: switch_enum_addr [[BOX]] : $*Medium, case #Medium.Paper!enumelt: bb1, case #Medium.Canvas!enumelt: bb2, case #Medium.Pamphlet!enumelt.1: bb3, case #Medium.Postcard!enumelt.1: bb4, default bb5 |
| // CHECK: bb1: |
| // CHECK-NEXT: dealloc_stack [[BOX]] |
| // CHECK-NEXT: br bb6 |
| // CHECK: bb2: |
| // CHECK-NEXT: dealloc_stack [[BOX]] |
| // CHECK-NEXT: br bb6 |
| // CHECK: bb3: |
| // CHECK-NEXT: [[INDIRECT_ADDR:%.*]] = unchecked_take_enum_data_addr [[BOX]] |
| // CHECK-NEXT: [[INDIRECT:%.*]] = load [[INDIRECT_ADDR]] |
| // CHECK-NEXT: [[PAYLOAD:%.*]] = project_box [[INDIRECT]] |
| // CHECK-NEXT: strong_release [[INDIRECT]] |
| // CHECK-NEXT: dealloc_stack [[BOX]] |
| // CHECK-NEXT: br bb6 |
| // CHECK: bb4: |
| // CHECK-NEXT: [[PAYLOAD_ADDR:%.*]] = unchecked_take_enum_data_addr [[BOX]] |
| // CHECK-NEXT: destroy_addr [[PAYLOAD_ADDR]] |
| // CHECK-NEXT: dealloc_stack [[BOX]] |
| // CHECK-NEXT: br bb6 |
| // CHECK: bb5: |
| // CHECK-NEXT: unreachable |
| // CHECK: bb6: |
| // CHECK-NEXT: destroy_addr %0 |
| // CHECK-NEXT: [[RESULT:%.*]] = tuple () |
| // CHECK-NEXT: return [[RESULT]] |
| |
| func resilientSwitch(_ m: Medium) { |
| switch m { |
| case .Paper: () |
| case .Canvas: () |
| case .Pamphlet: () |
| case .Postcard: () |
| } |
| } |
| |
| // Indirect enums are still address-only, because the discriminator is stored |
| // as part of the value, so we cannot resiliently make assumptions about the |
| // enum's size |
| |
| // CHECK-LABEL: sil hidden @_TF15enum_resilience21indirectResilientEnumFO14resilient_enum16IndirectApproachT_ : $@convention(thin) (@in IndirectApproach) -> () |
| func indirectResilientEnum(_ ia: IndirectApproach) {} |