intel/llvm
1
0
Fork 0
mirror of https://github.com/intel/llvm.git synced 2026-02-02 02:00:03 +08:00
Code Issues Packages Projects Releases Wiki Activity

[CodeView] Don't generate dummy unnamed strcut/class/union type.

Browse Source
This commit is contained in:
Zequan Wu
2022-12-06 07:58:28 +08:00
parent dd3fe52492
commit bb5bcddcdb
2 changed files with 40 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
clang/lib/CodeGen/CGDebugInfo.cpp
View File

@@ -1653,10 +1653,15 @@ void CGDebugInfo::CollectRecordFields(
} else if (CGM.getCodeGenOpts().EmitCodeView) {
// Debug info for nested types is included in the member list only for
// CodeView.
if (const auto *nestedType = dyn_cast<TypeDecl>(I))
if (const auto *nestedType = dyn_cast<TypeDecl>(I)) {
// MSVC doesn't generate nested type for anonymous struct/union.
if (isa<RecordDecl>(I) &&
cast<RecordDecl>(I)->isAnonymousStructOrUnion())
continue;
if (!nestedType->isImplicit() &&
nestedType->getDeclContext() == record)
CollectRecordNestedType(nestedType, elements);
}
}
}
}

35
clang/test/CodeGenCXX/debug-info-codeview-nested-types.cpp
View File

@@ -5,6 +5,11 @@ struct HasNested {
typedef int InnerTypedef;
enum { InnerEnumerator = 2 };
struct InnerStruct { };
union { int i1; };
union { int i2; } unnamed_union;
struct { int i3; };
struct { int i4; } unnamed_struct;
};
HasNested f;
@@ -12,7 +17,7 @@ HasNested f;
// CHECK: ![[HASNESTED:[0-9]+]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "HasNested",
// CHECK-SAME: elements: ![[MEMBERS:[0-9]+]],
//
// CHECK: ![[MEMBERS]] = !{![[INNERENUM]], ![[INNERTYPEDEF:[0-9]+]], ![[UNNAMEDENUM:[0-9]+]], ![[INNERSTRUCT:[0-9]+]]}
// CHECK: ![[MEMBERS]] = !{![[INNERENUM]], ![[INNERTYPEDEF:[0-9]+]], ![[UNNAMEDENUM:[0-9]+]], ![[INNERSTRUCT:[0-9]+]], ![[ANONYMOUS_UNION:[0-9]+]], ![[UNNAMED_UNION_TYPE:[0-9]+]], ![[UNNAMED_UNION:[0-9]+]], ![[ANONYMOUS_STRUCT:[0-9]+]], ![[UNNAMED_STRUCT_TYPE:[0-9]+]], ![[UNNAMED_STRUCT:[0-9]+]]}
//
// CHECK: ![[INNERTYPEDEF]] = !DIDerivedType(tag: DW_TAG_typedef, name: "InnerTypedef", scope: ![[HASNESTED]]{{.*}})
//
@@ -23,3 +28,31 @@ HasNested f;
//
// CHECK: ![[INNERSTRUCT]] = !DICompositeType(tag: DW_TAG_structure_type, name: "InnerStruct"
// CHECK-SAME: flags: DIFlagFwdDecl
// CHECK: ![[ANONYMOUS_UNION]] = !DIDerivedType(tag: DW_TAG_member,
// CHECK-SAME: baseType: ![[ANONYMOUS_UNION_TYPE:[0-9]+]]
// CHECK: ![[ANONYMOUS_UNION_TYPE]] = distinct !DICompositeType(tag: DW_TAG_union_type,
// CHECK-SAME: elements: ![[ANONYMOUS_UNION_MEMBERS:[0-9]+]], identifier: ".?AT<unnamed-type-$S1>@HasNested@@")
// CHECK: ![[ANONYMOUS_UNION_MEMBERS]] = !{![[ANONYMOUS_UNION_MEMBER:[0-9]+]]}
// CHECK: ![[ANONYMOUS_UNION_MEMBER]] = !DIDerivedType(tag: DW_TAG_member, name: "i1"
// CHECK: ![[UNNAMED_UNION_TYPE]] = distinct !DICompositeType(tag: DW_TAG_union_type, name: "<unnamed-type-unnamed_union>"
// CHECK-SAME: elements: ![[UNNAMED_UNION_MEMBERS:[0-9]+]], identifier: ".?AT<unnamed-type-unnamed_union>@HasNested@@")
// CHECK: ![[UNNAMED_UNION_MEMBERS]] = !{![[UNNAMED_UNION_MEMBER:[0-9]+]]}
// CHECK: ![[UNNAMED_UNION_MEMBER]] = !DIDerivedType(tag: DW_TAG_member, name: "i2"
// CHECK: ![[UNNAMED_UNION]] = !DIDerivedType(tag: DW_TAG_member, name: "unnamed_union"
// CHECK-SAME: baseType: ![[UNNAMED_UNION_TYPE]]
// CHECK: ![[ANONYMOUS_STRUCT]] = !DIDerivedType(tag: DW_TAG_member
// CHECK-SAME: baseType: ![[ANONYMOUS_STRUCT_TYPE:[0-9]+]]
// CHECK: ![[ANONYMOUS_STRUCT_TYPE]] = distinct !DICompositeType(tag: DW_TAG_structure_type
// CHECK-SAME: elements: ![[ANONYMOUS_STRUCT_MEMBERS:[0-9]+]], identifier: ".?AU<unnamed-type-$S2>@HasNested@@")
// CHECK: ![[ANONYMOUS_STRUCT_MEMBERS]] = !{![[ANONYMOUS_STRUCT_MEMBER:[0-9]+]]}
// CHECK: ![[ANONYMOUS_STRUCT_MEMBER]] = !DIDerivedType(tag: DW_TAG_member, name: "i3"
// CHECK: ![[UNNAMED_STRUCT_TYPE]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "<unnamed-type-unnamed_struct>"
// CHECK-SAME: elements: ![[UNNAMED_STRUCT_MEMBERS:[0-9]+]], identifier: ".?AU<unnamed-type-unnamed_struct>@HasNested@@")
// CHECK: ![[UNNAMED_STRUCT_MEMBERS]] = !{![[UNNAMED_STRUCT_MEMBER:[0-9]+]]}
// CHECK: ![[UNNAMED_STRUCT_MEMBER]] = !DIDerivedType(tag: DW_TAG_member, name: "i4"
// CHECK: ![[UNNAMED_STRUCT]] = !DIDerivedType(tag: DW_TAG_member, name: "unnamed_struct"
// CHECK-SAME: baseType: ![[UNNAMED_STRUCT_TYPE]]