1 ; REQUIRES: object-emission
3 ; RUN: llc -mtriple x86_64-pc-linux -O0 -filetype=obj %s -o %t
4 ; RUN: llvm-dwarfdump %t | FileCheck %s
10 ; typedef base base_type;
16 ; Where member b should be seen as a field at an offset and not a bitfield.
18 ; CHECK: DW_TAG_member
19 ; CHECK: DW_AT_name{{.*}}"b"
20 ; CHECK-NOT: DW_AT_bit_offset
22 %struct.foo = type { %struct.base }
23 %struct.base = type { i32 (...)** }
25 $_ZN3fooC2Ev = comdat any
27 $_ZN3fooD2Ev = comdat any
29 $_ZN4baseC2Ev = comdat any
31 @f = global %struct.foo zeroinitializer, align 8
32 @__dso_handle = external global i8
33 @_ZTV4base = external unnamed_addr constant [4 x i8*]
34 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_decl_derived_member.cpp, i8* null }]
36 define internal void @__cxx_global_var_init() section ".text.startup" {
38 call void @_ZN3fooC2Ev(%struct.foo* @f) #2, !dbg !33
39 %0 = call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.foo*)* @_ZN3fooD2Ev to void (i8*)*), i8* bitcast (%struct.foo* @f to i8*), i8* @__dso_handle) #2, !dbg !33
43 ; Function Attrs: inlinehint nounwind uwtable
44 define linkonce_odr void @_ZN3fooC2Ev(%struct.foo* %this) unnamed_addr #0 comdat align 2 {
46 %this.addr = alloca %struct.foo*, align 8
47 store %struct.foo* %this, %struct.foo** %this.addr, align 8
48 call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !34, metadata !36), !dbg !37
49 %this1 = load %struct.foo*, %struct.foo** %this.addr
50 %b = getelementptr inbounds %struct.foo, %struct.foo* %this1, i32 0, i32 0, !dbg !38
51 call void @_ZN4baseC2Ev(%struct.base* %b) #2, !dbg !38
55 ; Function Attrs: inlinehint uwtable
56 define linkonce_odr void @_ZN3fooD2Ev(%struct.foo* %this) unnamed_addr #1 comdat align 2 {
58 %this.addr = alloca %struct.foo*, align 8
59 store %struct.foo* %this, %struct.foo** %this.addr, align 8
60 call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !39, metadata !36), !dbg !40
61 %this1 = load %struct.foo*, %struct.foo** %this.addr
62 %b = getelementptr inbounds %struct.foo, %struct.foo* %this1, i32 0, i32 0, !dbg !41
63 call void @_ZN4baseD1Ev(%struct.base* %b), !dbg !41
67 ; Function Attrs: nounwind
68 declare i32 @__cxa_atexit(void (i8*)*, i8*, i8*) #2
70 ; Function Attrs: nounwind readnone
71 declare void @llvm.dbg.declare(metadata, metadata, metadata) #3
73 ; Function Attrs: inlinehint nounwind uwtable
74 define linkonce_odr void @_ZN4baseC2Ev(%struct.base* %this) unnamed_addr #0 comdat align 2 {
76 %this.addr = alloca %struct.base*, align 8
77 store %struct.base* %this, %struct.base** %this.addr, align 8
78 call void @llvm.dbg.declare(metadata %struct.base** %this.addr, metadata !44, metadata !36), !dbg !46
79 %this1 = load %struct.base*, %struct.base** %this.addr
80 %0 = bitcast %struct.base* %this1 to i32 (...)***, !dbg !47
81 store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*]* @_ZTV4base, i64 0, i64 2) to i32 (...)**), i32 (...)*** %0, !dbg !47
85 declare void @_ZN4baseD1Ev(%struct.base*) #4
87 define internal void @_GLOBAL__sub_I_decl_derived_member.cpp() section ".text.startup" {
89 call void @__cxx_global_var_init(), !dbg !48
93 attributes #0 = { inlinehint nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
94 attributes #1 = { inlinehint uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
95 attributes #2 = { nounwind }
96 attributes #3 = { nounwind readnone }
97 attributes #4 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
100 !llvm.module.flags = !{!30, !31}
103 !0 = !{!"0x11\004\00clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)\000\00\000\00\001", !1, !2, !3, !9, !28, !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/decl-derived-member.cpp] [DW_LANG_C_plus_plus]
104 !1 = !{!"decl-derived-member.cpp", !"/tmp/dbginfo"}
107 !4 = !{!"0x13\00foo\005\0064\0064\000\000\000", !1, null, null, !5, null, null, !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 5, size 64, align 64, offset 0] [def] [from ]
109 !6 = !{!"0xd\00b\006\0064\0064\000\000", !1, !"_ZTS3foo", !7} ; [ DW_TAG_member ] [b] [line 6, size 64, align 64, offset 0] [from base_type]
110 !7 = !{!"0x16\00base_type\004\000\000\000\000", !1, null, !"_ZTS4base"} ; [ DW_TAG_typedef ] [base_type] [line 4, size 0, align 0, offset 0] [from _ZTS4base]
111 !8 = !{!"0x13\00base\001\000\000\000\004\000", !1, null, null, null, null, null, !"_ZTS4base"} ; [ DW_TAG_structure_type ] [base] [line 1, size 0, align 0, offset 0] [decl] [from ]
112 !9 = !{!10, !14, !19, !24, !26}
113 !10 = !{!"0x2e\00__cxx_global_var_init\00__cxx_global_var_init\00\008\001\001\000\000\00256\000\008", !1, !11, !12, null, void ()* @__cxx_global_var_init, null, null, !2} ; [ DW_TAG_subprogram ] [line 8] [local] [def] [__cxx_global_var_init]
114 !11 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/decl-derived-member.cpp]
115 !12 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !13, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
117 !14 = !{!"0x2e\00foo\00foo\00_ZN3fooC2Ev\005\000\001\000\000\00320\000\005", !1, !"_ZTS3foo", !15, null, void (%struct.foo*)* @_ZN3fooC2Ev, null, !18, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
118 !15 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
120 !17 = !{!"0xf\00\000\0064\0064\000\001088\00", null, null, !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS3foo]
121 !18 = !{!"0x2e\00foo\00foo\00\000\000\000\000\000\00320\000\000", null, !"_ZTS3foo", !15, null, null, null, null, null} ; [ DW_TAG_subprogram ] [line 0] [foo]
122 !19 = !{!"0x2e\00base\00base\00_ZN4baseC2Ev\001\000\001\000\000\00320\000\001", !1, !"_ZTS4base", !20, null, void (%struct.base*)* @_ZN4baseC2Ev, null, !23, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [base]
123 !20 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !21, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
125 !22 = !{!"0xf\00\000\0064\0064\000\001088\00", null, null, !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS4base]
126 !23 = !{!"0x2e\00base\00base\00\000\000\000\000\000\00320\000\000", null, !"_ZTS4base", !20, null, null, null, null, null} ; [ DW_TAG_subprogram ] [line 0] [base]
127 !24 = !{!"0x2e\00~foo\00~foo\00_ZN3fooD2Ev\005\000\001\000\000\00320\000\005", !1, !"_ZTS3foo", !15, null, void (%struct.foo*)* @_ZN3fooD2Ev, null, !25, !2} ; [ DW_TAG_subprogram ] [line 5] [def] [~foo]
128 !25 = !{!"0x2e\00~foo\00~foo\00\000\000\000\000\000\00320\000\000", null, !"_ZTS3foo", !15, null, null, null, null, null} ; [ DW_TAG_subprogram ] [line 0] [~foo]
129 !26 = !{!"0x2e\00\00\00_GLOBAL__sub_I_decl_derived_member.cpp\000\001\001\000\000\0064\000\000", !1, !11, !27, null, void ()* @_GLOBAL__sub_I_decl_derived_member.cpp, null, null, !2} ; [ DW_TAG_subprogram ] [line 0] [local] [def]
130 !27 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
132 !29 = !{!"0x34\00f\00f\00\008\000\001", null, !11, !"_ZTS3foo", %struct.foo* @f, null} ; [ DW_TAG_variable ] [f] [line 8] [def]
133 !30 = !{i32 2, !"Dwarf Version", i32 4}
134 !31 = !{i32 2, !"Debug Info Version", i32 2}
135 !32 = !{!"clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)"}
136 !33 = !MDLocation(line: 8, column: 5, scope: !10)
137 !34 = !{!"0x101\00this\0016777216\001088", !14, null, !35} ; [ DW_TAG_arg_variable ] [this] [line 0]
138 !35 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS3foo]
139 !36 = !{!"0x102"} ; [ DW_TAG_expression ]
140 !37 = !MDLocation(line: 0, scope: !14)
141 !38 = !MDLocation(line: 5, column: 8, scope: !14)
142 !39 = !{!"0x101\00this\0016777216\001088", !24, null, !35} ; [ DW_TAG_arg_variable ] [this] [line 0]
143 !40 = !MDLocation(line: 0, scope: !24)
144 !41 = !MDLocation(line: 5, column: 8, scope: !42)
145 !42 = !{!"0xb\005\008\002", !1, !24} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/decl-derived-member.cpp]
146 !43 = !MDLocation(line: 5, column: 8, scope: !24)
147 !44 = !{!"0x101\00this\0016777216\001088", !19, null, !45} ; [ DW_TAG_arg_variable ] [this] [line 0]
148 !45 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS4base]
149 !46 = !MDLocation(line: 0, scope: !19)
150 !47 = !MDLocation(line: 1, column: 8, scope: !19)
151 !48 = !MDLocation(line: 0, scope: !26)