1 ; REQUIRES: object-emission 2 3 ; RUN: llc -mtriple x86_64-pc-linux -O0 -filetype=obj %s -o %t 4 ; RUN: llvm-dwarfdump %t | FileCheck %s 5 6 ; Testcase from: 7 ; struct base { 8 ; virtual ~base(); 9 ; }; 10 ; struct foo { 11 ; base b; 12 ; }; 13 ; foo f; 14 15 ; Where member b should be seen as a field at an offset and not a bitfield. 16 17 ; CHECK: DW_TAG_member 18 ; CHECK: DW_AT_name{{.*}}"b" 19 ; CHECK-NOT: DW_AT_bit_offset 20 21 %struct.foo = type { %struct.base } 22 %struct.base = type { i32 (...)** } 23 @f = global %struct.foo zeroinitializer, align 8 24 @__dso_handle = external global i8 25 @_ZTV4base = external unnamed_addr constant [4 x i8*] 26 @llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }] 27 28 define internal void @__cxx_global_var_init() section ".text.startup" { 29 entry: 30 call void @_ZN3fooC2Ev(%struct.foo* @f) #2, !dbg !35 31 %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 !35 32 ret void, !dbg !35 33 } 34 35 ; Function Attrs: inlinehint nounwind uwtable 36 define linkonce_odr void @_ZN3fooC2Ev(%struct.foo* %this) unnamed_addr #0 align 2 { 37 entry: 38 %this.addr = alloca %struct.foo*, align 8 39 store %struct.foo* %this, %struct.foo** %this.addr, align 8 40 call void @llvm.dbg.declare(metadata !{%struct.foo** %this.addr}, metadata !36), !dbg !38 41 %this1 = load %struct.foo** %this.addr 42 %b = getelementptr inbounds %struct.foo* %this1, i32 0, i32 0, !dbg !39 43 call void @_ZN4baseC2Ev(%struct.base* %b) #2, !dbg !39 44 ret void, !dbg !39 45 } 46 47 ; Function Attrs: inlinehint uwtable 48 define linkonce_odr void @_ZN3fooD2Ev(%struct.foo* %this) unnamed_addr #1 align 2 { 49 entry: 50 %this.addr = alloca %struct.foo*, align 8 51 store %struct.foo* %this, %struct.foo** %this.addr, align 8 52 call void @llvm.dbg.declare(metadata !{%struct.foo** %this.addr}, metadata !40), !dbg !41 53 %this1 = load %struct.foo** %this.addr 54 %b = getelementptr inbounds %struct.foo* %this1, i32 0, i32 0, !dbg !42 55 call void @_ZN4baseD1Ev(%struct.base* %b), !dbg !42 56 ret void, !dbg !44 57 } 58 59 ; Function Attrs: nounwind 60 declare i32 @__cxa_atexit(void (i8*)*, i8*, i8*) #2 61 62 ; Function Attrs: nounwind readnone 63 declare void @llvm.dbg.declare(metadata, metadata) #3 64 65 declare void @_ZN4baseD1Ev(%struct.base*) #4 66 67 ; Function Attrs: inlinehint nounwind uwtable 68 define linkonce_odr void @_ZN4baseC2Ev(%struct.base* %this) unnamed_addr #0 align 2 { 69 entry: 70 %this.addr = alloca %struct.base*, align 8 71 store %struct.base* %this, %struct.base** %this.addr, align 8 72 call void @llvm.dbg.declare(metadata !{%struct.base** %this.addr}, metadata !45), !dbg !47 73 %this1 = load %struct.base** %this.addr 74 %0 = bitcast %struct.base* %this1 to i8***, !dbg !48 75 store i8** getelementptr inbounds ([4 x i8*]* @_ZTV4base, i64 0, i64 2), i8*** %0, !dbg !48 76 ret void, !dbg !48 77 } 78 79 define internal void @_GLOBAL__I_a() section ".text.startup" { 80 entry: 81 call void @__cxx_global_var_init(), !dbg !49 82 ret void, !dbg !49 83 } 84 85 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" } 86 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" } 87 attributes #2 = { nounwind } 88 attributes #3 = { nounwind readnone } 89 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" } 90 91 !llvm.dbg.cu = !{!0} 92 !llvm.module.flags = !{!32, !33} 93 !llvm.ident = !{!34} 94 95 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 (trunk 203673) (llvm/trunk 203681)", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !8, metadata !30, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/echristo/foo.cc] [DW_LANG_C_plus_plus] 96 !1 = metadata !{metadata !"foo.cc", metadata !"/usr/local/google/home/echristo"} 97 !2 = metadata !{} 98 !3 = metadata !{metadata !4, metadata !7} 99 !4 = metadata !{i32 786451, metadata !1, null, metadata !"foo", i32 5, i64 64, i64 64, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 5, size 64, align 64, offset 0] [def] [from ] 100 !5 = metadata !{metadata !6} 101 !6 = metadata !{i32 786445, metadata !1, metadata !"_ZTS3foo", metadata !"b", i32 6, i64 64, i64 64, i64 0, i32 0, metadata !"_ZTS4base"} ; [ DW_TAG_member ] [b] [line 6, size 64, align 64, offset 0] [from _ZTS4base] 102 !7 = metadata !{i32 786451, metadata !1, null, metadata !"base", i32 1, i64 0, i64 0, i32 0, i32 4, null, null, i32 0, null, null, metadata !"_ZTS4base"} ; [ DW_TAG_structure_type ] [base] [line 1, size 0, align 0, offset 0] [decl] [from ] 103 !8 = metadata !{metadata !9, metadata !13, metadata !19, metadata !22, metadata !28} 104 !9 = metadata !{i32 786478, metadata !1, metadata !10, metadata !"__cxx_global_var_init", metadata !"__cxx_global_var_init", metadata !"", i32 9, metadata !11, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @__cxx_global_var_init, null, null, metadata !2, i32 9} ; [ DW_TAG_subprogram ] [line 9] [local] [def] [__cxx_global_var_init] 105 !10 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/usr/local/google/home/echristo/foo.cc] 106 !11 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !12, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 107 !12 = metadata !{null} 108 !13 = metadata !{i32 786478, metadata !1, metadata !"_ZTS3foo", metadata !"~foo", metadata !"~foo", metadata !"_ZN3fooD2Ev", i32 5, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 320, i1 false, void (%struct.foo*)* @_ZN3fooD2Ev, null, metadata !17, metadata !2, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [~foo] 109 !14 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !15, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 110 !15 = metadata !{null, metadata !16} 111 !16 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS3foo] 112 !17 = metadata !{i32 786478, null, metadata !"_ZTS3foo", metadata !"~foo", metadata !"~foo", metadata !"", i32 0, metadata !14, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !18, i32 0} ; [ DW_TAG_subprogram ] [line 0] [~foo] 113 !18 = metadata !{i32 786468} 114 !19 = metadata !{i32 786478, metadata !1, metadata !"_ZTS3foo", metadata !"foo", metadata !"foo", metadata !"_ZN3fooC2Ev", i32 5, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 320, i1 false, void (%struct.foo*)* @_ZN3fooC2Ev, null, metadata !20, metadata !2, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [foo] 115 !20 = metadata !{i32 786478, null, metadata !"_ZTS3foo", metadata !"foo", metadata !"foo", metadata !"", i32 0, metadata !14, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !21, i32 0} ; [ DW_TAG_subprogram ] [line 0] [foo] 116 !21 = metadata !{i32 786468} 117 !22 = metadata !{i32 786478, metadata !1, metadata !"_ZTS4base", metadata !"base", metadata !"base", metadata !"_ZN4baseC2Ev", i32 1, metadata !23, i1 false, i1 true, i32 0, i32 0, null, i32 320, i1 false, void (%struct.base*)* @_ZN4baseC2Ev, null, metadata !26, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [base] 118 !23 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !24, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 119 !24 = metadata !{null, metadata !25} 120 !25 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS4base] 121 !26 = metadata !{i32 786478, null, metadata !"_ZTS4base", metadata !"base", metadata !"base", metadata !"", i32 0, metadata !23, i1 false, i1 false, i32 0, i32 0, null, i32 320, i1 false, null, null, i32 0, metadata !27, i32 0} ; [ DW_TAG_subprogram ] [line 0] [base] 122 !27 = metadata !{i32 786468} 123 !28 = metadata !{i32 786478, metadata !1, metadata !10, metadata !"", metadata !"", metadata !"_GLOBAL__I_a", i32 1, metadata !29, i1 true, i1 true, i32 0, i32 0, null, i32 64, i1 false, void ()* @_GLOBAL__I_a, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [local] [def] 124 !29 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !2, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 125 !30 = metadata !{metadata !31} 126 !31 = metadata !{i32 786484, i32 0, null, metadata !"f", metadata !"f", metadata !"", metadata !10, i32 9, metadata !4, i32 0, i32 1, %struct.foo* @f, null} ; [ DW_TAG_variable ] [f] [line 9] [def] 127 !32 = metadata !{i32 2, metadata !"Dwarf Version", i32 4} 128 !33 = metadata !{i32 1, metadata !"Debug Info Version", i32 1} 129 !34 = metadata !{metadata !"clang version 3.5.0 (trunk 203673) (llvm/trunk 203681)"} 130 !35 = metadata !{i32 9, i32 0, metadata !9, null} 131 !36 = metadata !{i32 786689, metadata !19, metadata !"this", null, i32 16777216, metadata !37, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0] 132 !37 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS3foo] 133 !38 = metadata !{i32 0, i32 0, metadata !19, null} 134 !39 = metadata !{i32 5, i32 0, metadata !19, null} 135 !40 = metadata !{i32 786689, metadata !13, metadata !"this", null, i32 16777216, metadata !37, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0] 136 !41 = metadata !{i32 0, i32 0, metadata !13, null} 137 !42 = metadata !{i32 5, i32 0, metadata !43, null} 138 !43 = metadata !{i32 786443, metadata !1, metadata !13, i32 5, i32 0, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/usr/local/google/home/echristo/foo.cc] 139 !44 = metadata !{i32 5, i32 0, metadata !13, null} 140 !45 = metadata !{i32 786689, metadata !22, metadata !"this", null, i32 16777216, metadata !46, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0] 141 !46 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !"_ZTS4base"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS4base] 142 !47 = metadata !{i32 0, i32 0, metadata !22, null} 143 !48 = metadata !{i32 1, i32 0, metadata !22, null} 144 !49 = metadata !{i32 1, i32 0, metadata !28, null} 145
