1 ; Make sure the backend generates a single DIE and uses ref_addr.
2 ; CHECK: 0x[[BASE:.*]]: DW_TAG_structure_type
3 ; CHECK-NEXT: DW_AT_name {{.*}}"Base"
4 ; CHECK-NOT: DW_TAG_structure_type
5 ; CHECK: 0x[[INT:.*]]: DW_TAG_base_type
6 ; CHECK-NEXT: DW_AT_name {{.*}}"int"
7 ; CHECK-NOT: DW_TAG_base_type
9 ; CHECK: DW_TAG_compile_unit
10 ; CHECK: DW_TAG_formal_parameter
11 ; CHECK: DW_AT_type [DW_FORM_ref_addr] {{.*}}[[INT]]
12 ; CHECK: DW_TAG_variable
13 ; CHECK: DW_AT_type [DW_FORM_ref_addr] {{.*}}[[BASE]]
15 ; Make sure llvm-link only generates a single copy of the struct.
16 ; LINK: DW_TAG_structure_type
17 ; LINK-NOT: DW_TAG_structure_type
19 ; Content of header files:
42 ; ModuleID = 'foo.cpp'
44 %struct.Base = type { i32, ptr }
46 ; Function Attrs: nounwind ssp uwtable
47 define void @_Z1fi(i32 %a) #0 !dbg !12 {
49 %a.addr = alloca i32, align 4
50 %t = alloca %struct.Base, align 8
51 store i32 %a, ptr %a.addr, align 4
52 call void @llvm.dbg.declare(metadata ptr %a.addr, metadata !17, metadata !DIExpression()), !dbg !18
53 call void @llvm.dbg.declare(metadata ptr %t, metadata !19, metadata !DIExpression()), !dbg !20
57 ; Function Attrs: nounwind readnone
58 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
60 attributes #0 = { nounwind ssp uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
61 attributes #1 = { nounwind readnone }
64 !llvm.module.flags = !{!16, !22}
66 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2)
67 !1 = !DIFile(filename: "foo.cpp", directory: ".")
70 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "Base", line: 1, file: !5, elements: !6, identifier: "_ZTS4Base")
71 !5 = !DIFile(filename: "./a.hpp", directory: ".")
73 !7 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 2, size: 32, align: 32, file: !5, scope: !4, baseType: !8)
74 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
75 !9 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 3, size: 64, align: 64, offset: 64, file: !5, scope: !4, baseType: !10)
76 !10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4)
77 !12 = distinct !DISubprogram(name: "f", linkageName: "_Z1fi", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !13, type: !14, retainedNodes: !2)
78 !13 = !DIFile(filename: "foo.cpp", directory: ".")
79 !14 = !DISubroutineType(types: !15)
81 !16 = !{i32 2, !"Dwarf Version", i32 3}
82 !17 = !DILocalVariable(name: "a", line: 3, arg: 1, scope: !12, file: !13, type: !8)
83 !18 = !DILocation(line: 3, scope: !12)
84 !19 = !DILocalVariable(name: "t", line: 4, scope: !12, file: !13, type: !4)
85 !20 = !DILocation(line: 4, scope: !12)
86 !21 = !DILocation(line: 5, scope: !12)
87 !22 = !{i32 1, !"Debug Info Version", i32 3}