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Generate full debug info for enums

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Replace the generation of debug info for enums from DW_TAG_union_type
to either DW_TAG_enumeration_type or DW_TAG_variant_part, as these
representation match Swift enums more closely.
This commit is contained in:
Augusto Noronha
2023-11-10 14:08:40 -08:00
parent 254ecb6118
commit 594f51a13e
2 changed files with 130 additions and 54 deletions
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32
test/DebugInfo/enum.swift
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@@ -9,9 +9,23 @@ enum Either {
case First(Int64), Second(P), Neither
// CHECK: !DICompositeType({{.*}}name: "Either",
// CHECK-SAME: size: {{328|168}},
// DWARF: !DICompositeType(tag: DW_TAG_structure_type, name: "Either",
// DWARF-SAME: size: 328, num_extra_inhabitants: 253,
// DWARF-SAME: identifier: "$s4enum6EitherOD")
// DWARF: !DICompositeType(tag: DW_TAG_variant_part
// DWARF: DIDerivedType(tag: DW_TAG_member, name: "First",
// DWARF-NEXT: DICompositeType(tag: DW_TAG_structure_type, name: "Int64",
// DWARF: DIDerivedType(tag: DW_TAG_member, name: "Second"
// DWARF-NEXT: DICompositeType(tag: DW_TAG_structure_type, name: "P",
// DWARF: DIDerivedType(tag: DW_TAG_member, name: "Neither",
// DWARF-SAME: baseType: null)
}
// CHECK: ![[EMPTY:.*]] = !{}
// DWARF: ![[INT:.*]] = !DICompositeType({{.*}}identifier: "$sSiD"
let E : Either = .Neither;
// CHECK: !DICompositeType({{.*}}name: "Color",
@@ -19,19 +33,25 @@ let E : Either = .Neither;
// CHECK-SAME: identifier: "$s4enum5ColorOD"
enum Color : UInt64 {
// This is effectively a 2-bit bitfield:
// DWARF: !DIDerivedType(tag: DW_TAG_member, name: "Red"
// DWARF-SAME: baseType: ![[UINT64:[0-9]+]]
// DWARF-SAME: size: 64{{[,)]}}
// DWARF: ![[UINT64]] = !DICompositeType({{.*}}identifier: "$ss6UInt64VD"
// DWARF: DICompositeType(tag: DW_TAG_enumeration_type, name: "Color",
// DWARF-NEXT: DICompositeType(tag: DW_TAG_structure_type, name: "UInt64"
// DWARF: !DIEnumerator(name: "Red", value: 0)
// DWARF-NEXT: !DIEnumerator(name: "Green", value: 0)
// DWARF-NEXT: !DIEnumerator(name: "Blue", value: 0)
case Red, Green, Blue
}
// CHECK: !DICompositeType({{.*}}name: "MaybeIntPair",
// CHECK-SAME: size: 136{{[,)]}}
// CHECK-SAME: identifier: "$s4enum12MaybeIntPairOD"
// DWARF: DICompositeType(tag: DW_TAG_structure_type, name: "MaybeIntPair",
// DWARF-SAME: identifier: "$s4enum12MaybeIntPairOD"
// DWARF: DICompositeType(tag: DW_TAG_variant_part
enum MaybeIntPair {
// DWARF: !DIDerivedType(tag: DW_TAG_member, name: "none"
// DWARF-SAME: baseType: ![[INT]]{{[,)]}}
// DWARF-SAME: baseType: null)
case none
// DWARF: !DIDerivedType(tag: DW_TAG_member, name: "just"
// DWARF-SAME: baseType: ![[INTTUP:[0-9]+]]