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      1 ; REQUIRES: object-emission
      2 
      3 ; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
      4 
      5 ; IR generated from clang -O0 with:
      6 ; struct C {
      7 ;   ~C();
      8 ; };
      9 ; extern bool b;
     10 ; void fun4() { b && (C(), 1); }
     11 ; __attribute__((always_inline)) C::~C() { }
     12 
     13 ; CHECK: DW_TAG_structure_type
     14 ; CHECK-NOT: DW_TAG
     15 ; CHECK:   DW_AT_name {{.*}} "C"
     16 ; CHECK-NOT: {{DW_TAG|NULL}}
     17 ; CHECK: [[C_DTOR_DECL:.*]]:  DW_TAG_subprogram
     18 ; CHECK-NOT: DW_TAG
     19 ; CHECK:     DW_AT_name {{.*}} "~C"
     20 
     21 ; CHECK: [[D1_ABS:.*]]: DW_TAG_subprogram
     22 ; CHECK-NOT: DW_TAG
     23 ; CHECK:   DW_AT_MIPS_linkage_name {{.*}} "_ZN1CD1Ev"
     24 ; CHECK-NOT: {{DW_TAG|NULL}}
     25 ; CHECK: [[D1_THIS_ABS:.*]]:   DW_TAG_formal_parameter
     26 ; CHECK-NOT: DW_TAG
     27 ; CHECK:     DW_AT_name {{.*}} "this"
     28 
     29 ; CHECK: DW_TAG_subprogram
     30 ; CHECK-NOT: DW_TAG
     31 ; CHECK:   DW_AT_name {{.*}} "fun4"
     32 ; CHECK-NOT: {{DW_TAG|NULL}}
     33 ; CHECK:   DW_TAG_lexical_block
     34 ; CHECK-NOT: {{DW_TAG|NULL}}
     35 ; CHECK:     DW_TAG_inlined_subroutine
     36 ; CHECK-NOT: DW_TAG
     37 ; CHECK:       DW_AT_abstract_origin {{.*}} {[[D1_ABS]]}
     38 ; CHECK-NOT: {{DW_TAG|NULL}}
     39 ; CHECK:       DW_TAG_formal_parameter
     40 ; CHECK-NOT: DW_TAG
     41 ; CHECK:         DW_AT_abstract_origin {{.*}} {[[D1_THIS_ABS]]}
     42 
     43 ; FIXME: D2 is actually inlined into D1 but doesn't show up here, possibly due
     44 ; to there being no work in D2 (calling another member function from the dtor
     45 ; causes D2 to show up, calling a free function doesn't).
     46 
     47 ; CHECK-NOT: DW_TAG
     48 ; CHECK:       NULL
     49 ; CHECK-NOT: DW_TAG
     50 ; CHECK:     NULL
     51 ; CHECK-NOT: DW_TAG
     52 ; CHECK:   NULL
     53 
     54 %struct.C = type { i8 }
     55 
     56 @b = external global i8
     57 
     58 ; Function Attrs: nounwind
     59 define void @_Z4fun4v() #0 {
     60 entry:
     61   %this.addr.i.i = alloca %struct.C*, align 8, !dbg !21
     62   %this.addr.i = alloca %struct.C*, align 8, !dbg !22
     63   %agg.tmp.ensured = alloca %struct.C, align 1
     64   %cleanup.cond = alloca i1
     65   %0 = load i8* @b, align 1, !dbg !24
     66   %tobool = trunc i8 %0 to i1, !dbg !24
     67   store i1 false, i1* %cleanup.cond
     68   br i1 %tobool, label %land.rhs, label %land.end, !dbg !24
     69 
     70 land.rhs:                                         ; preds = %entry
     71   store i1 true, i1* %cleanup.cond, !dbg !25
     72   br label %land.end
     73 
     74 land.end:                                         ; preds = %land.rhs, %entry
     75   %1 = phi i1 [ false, %entry ], [ true, %land.rhs ]
     76   %cleanup.is_active = load i1* %cleanup.cond, !dbg !27
     77   br i1 %cleanup.is_active, label %cleanup.action, label %cleanup.done, !dbg !27
     78 
     79 cleanup.action:                                   ; preds = %land.end
     80   store %struct.C* %agg.tmp.ensured, %struct.C** %this.addr.i, align 8, !dbg !22
     81   call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr.i}, metadata !29), !dbg !31
     82   %this1.i = load %struct.C** %this.addr.i, !dbg !22
     83   store %struct.C* %this1.i, %struct.C** %this.addr.i.i, align 8, !dbg !21
     84   call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr.i.i}, metadata !32), !dbg !33
     85   %this1.i.i = load %struct.C** %this.addr.i.i, !dbg !21
     86   br label %cleanup.done, !dbg !22
     87 
     88 cleanup.done:                                     ; preds = %cleanup.action, %land.end
     89   ret void, !dbg !34
     90 }
     91 
     92 ; Function Attrs: alwaysinline nounwind
     93 define void @_ZN1CD1Ev(%struct.C* %this) unnamed_addr #1 align 2 {
     94 entry:
     95   %this.addr.i = alloca %struct.C*, align 8, !dbg !37
     96   %this.addr = alloca %struct.C*, align 8
     97   store %struct.C* %this, %struct.C** %this.addr, align 8
     98   call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr}, metadata !29), !dbg !38
     99   %this1 = load %struct.C** %this.addr
    100   store %struct.C* %this1, %struct.C** %this.addr.i, align 8, !dbg !37
    101   call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr.i}, metadata !32), !dbg !39
    102   %this1.i = load %struct.C** %this.addr.i, !dbg !37
    103   ret void, !dbg !37
    104 }
    105 
    106 ; Function Attrs: alwaysinline nounwind
    107 define void @_ZN1CD2Ev(%struct.C* %this) unnamed_addr #1 align 2 {
    108 entry:
    109   %this.addr = alloca %struct.C*, align 8
    110   store %struct.C* %this, %struct.C** %this.addr, align 8
    111   call void @llvm.dbg.declare(metadata !{%struct.C** %this.addr}, metadata !32), !dbg !40
    112   %this1 = load %struct.C** %this.addr
    113   ret void, !dbg !41
    114 }
    115 
    116 ; Function Attrs: nounwind readnone
    117 declare void @llvm.dbg.declare(metadata, metadata) #2
    118 
    119 attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
    120 attributes #1 = { alwaysinline nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
    121 attributes #2 = { nounwind readnone }
    122 
    123 !llvm.dbg.cu = !{!0}
    124 !llvm.module.flags = !{!18, !19}
    125 !llvm.ident = !{!20}
    126 
    127 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !11, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/<stdin>] [DW_LANG_C_plus_plus]
    128 !1 = metadata !{metadata !"<stdin>", metadata !"/tmp/dbginfo"}
    129 !2 = metadata !{}
    130 !3 = metadata !{metadata !4}
    131 !4 = metadata !{i32 786451, metadata !5, null, metadata !"C", i32 1, i64 8, i64 8, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS1C"} ; [ DW_TAG_structure_type ] [C] [line 1, size 8, align 8, offset 0] [def] [from ]
    132 !5 = metadata !{metadata !"PR20038.cpp", metadata !"/tmp/dbginfo"}
    133 !6 = metadata !{metadata !7}
    134 !7 = metadata !{i32 786478, metadata !5, metadata !"_ZTS1C", metadata !"~C", metadata !"~C", metadata !"", i32 2, metadata !8, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, null, i32 2} ; [ DW_TAG_subprogram ] [line 2] [~C]
    135 !8 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !9, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
    136 !9 = metadata !{null, metadata !10}
    137 !10 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1C]
    138 !11 = metadata !{metadata !12, metadata !16, metadata !17}
    139 !12 = metadata !{i32 786478, metadata !5, metadata !13, metadata !"fun4", metadata !"fun4", metadata !"_Z4fun4v", i32 5, metadata !14, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void ()* @_Z4fun4v, null, null, metadata !2, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [fun4]
    140 !13 = metadata !{i32 786473, metadata !5}         ; [ DW_TAG_file_type ] [/tmp/dbginfo/PR20038.cpp]
    141 !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 ]
    142 !15 = metadata !{null}
    143 !16 = metadata !{i32 786478, metadata !5, metadata !"_ZTS1C", metadata !"~C", metadata !"~C", metadata !"_ZN1CD2Ev", i32 6, metadata !8, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.C*)* @_ZN1CD2Ev, null, metadata !7, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [~C]
    144 !17 = metadata !{i32 786478, metadata !5, metadata !"_ZTS1C", metadata !"~C", metadata !"~C", metadata !"_ZN1CD1Ev", i32 6, metadata !8, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (%struct.C*)* @_ZN1CD1Ev, null, metadata !7, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [~C]
    145 !18 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
    146 !19 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
    147 !20 = metadata !{metadata !"clang version 3.5.0 "}
    148 !21 = metadata !{i32 6, i32 0, metadata !17, metadata !22}
    149 !22 = metadata !{i32 5, i32 0, metadata !23, null}
    150 !23 = metadata !{i32 786443, metadata !5, metadata !12, i32 5, i32 0, i32 3, i32 3} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/PR20038.cpp]
    151 !24 = metadata !{i32 5, i32 0, metadata !12, null}
    152 !25 = metadata !{i32 5, i32 0, metadata !26, null}
    153 !26 = metadata !{i32 786443, metadata !5, metadata !12, i32 5, i32 0, i32 1, i32 1} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/PR20038.cpp]
    154 !27 = metadata !{i32 5, i32 0, metadata !28, null}
    155 !28 = metadata !{i32 786443, metadata !5, metadata !12, i32 5, i32 0, i32 2, i32 2} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/PR20038.cpp]
    156 !29 = metadata !{i32 786689, metadata !17, metadata !"this", null, i32 16777216, metadata !30, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0]
    157 !30 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !"_ZTS1C"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1C]
    158 !31 = metadata !{i32 0, i32 0, metadata !17, metadata !22}
    159 !32 = metadata !{i32 786689, metadata !16, metadata !"this", null, i32 16777216, metadata !30, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0]
    160 !33 = metadata !{i32 0, i32 0, metadata !16, metadata !21}
    161 !34 = metadata !{i32 5, i32 0, metadata !35, null}
    162 !35 = metadata !{i32 786443, metadata !5, metadata !36, i32 5, i32 0, i32 5, i32 5} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/PR20038.cpp]
    163 !36 = metadata !{i32 786443, metadata !5, metadata !12, i32 5, i32 0, i32 4, i32 4} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/PR20038.cpp]
    164 !37 = metadata !{i32 6, i32 0, metadata !17, null}
    165 !38 = metadata !{i32 0, i32 0, metadata !17, null}
    166 !39 = metadata !{i32 0, i32 0, metadata !16, metadata !37}
    167 !40 = metadata !{i32 0, i32 0, metadata !16, null}
    168 !41 = metadata !{i32 6, i32 0, metadata !16, null}
    169