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Augusto Noronha
9a42678cd0
Wrap indirect enum case payload types in DW_TAG_reference_type to indicate that the case stores a pointer to a heap-allocated box rather than the payload directly. rdar://170687015
30 lines
1.3 KiB
Swift
30 lines
1.3 KiB
Swift
// RUN: %target-swift-frontend -primary-file %s -emit-ir -gdwarf-types -o - | %FileCheck %s
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// Test that explicit `indirect case` declarations are represented with
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// DW_TAG_reference_type in debug info, while non-indirect cases
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// are represented directly.
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// CHECK-DAG: !DICompositeType(tag: DW_TAG_structure_type, name: "MixedEnum", {{.*}}elements: ![[OUTER:[0-9]+]]
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// CHECK-DAG: ![[OUTER]] = !{![[VP:[0-9]+]]}
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// CHECK-DAG: ![[VP]] = !DICompositeType(tag: DW_TAG_variant_part, {{.*}}elements: ![[ELTS:[0-9]+]])
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// CHECK-DAG: ![[ELTS]] = !{![[EMPTY:[0-9]+]], ![[VALUE:[0-9]+]], ![[INDIRECT:[0-9]+]]}
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// The empty case has no type
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// CHECK-DAG: ![[EMPTY]] = !DIDerivedType(tag: DW_TAG_member, name: "empty",
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// The value case should NOT have a reference type (it's not indirect)
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// CHECK-DAG: ![[VALUE]] = !DIDerivedType(tag: DW_TAG_member, name: "value", {{.*}}baseType: ![[INT:[0-9]+]]
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// CHECK-DAG: ![[INT]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Int",
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// The indirect case should have a reference type
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// CHECK-DAG: ![[INDIRECT]] = !DIDerivedType(tag: DW_TAG_member, name: "indirectValue", {{.*}}baseType: ![[IND_REF:[0-9]+]]
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// CHECK-DAG: ![[IND_REF]] = !DIDerivedType(tag: DW_TAG_reference_type, baseType: ![[INT]]
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enum MixedEnum {
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case empty
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case value(Int)
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indirect case indirectValue(Int)
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}
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let mixed = MixedEnum.value(42)
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