| @var = thread_local global i32 0, align 4, !dbg !0 | 
 |  | 
 | ; Function Attrs: norecurse nounwind readnone uwtable | 
 | define void @_Z3funv() local_unnamed_addr #0 !dbg !11 { | 
 |   ret void, !dbg !14 | 
 | } | 
 |  | 
 | ; Function Attrs: norecurse uwtable | 
 | define weak_odr hidden ptr @_ZTW3var() local_unnamed_addr #1 { | 
 |   ret ptr @var | 
 | } | 
 |  | 
 | attributes #0 = { norecurse nounwind readnone uwtable } | 
 | attributes #1 = { norecurse uwtable } | 
 |  | 
 | !llvm.dbg.cu = !{!2} | 
 | !llvm.module.flags = !{!7, !8, !9} | 
 | !llvm.ident = !{!10} | 
 |  | 
 | !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) | 
 | !1 = distinct !DIGlobalVariable(name: "var", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) | 
 | !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 7.0.0 (trunk 322268) (llvm/trunk 322267)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: Apple) | 
 | !3 = !DIFile(filename: "debugger-tune.cpp", directory: "/tmp") | 
 | !4 = !{} | 
 | !5 = !{!0} | 
 | !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) | 
 | !7 = !{i32 2, !"Dwarf Version", i32 5} | 
 | !8 = !{i32 2, !"Debug Info Version", i32 3} | 
 | !9 = !{i32 1, !"wchar_size", i32 4} | 
 | !10 = !{!"clang version 7.0.0 (trunk 322268) (llvm/trunk 322267)"} | 
 | !11 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !3, file: !3, line: 2, type: !12, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !4) | 
 | !12 = !DISubroutineType(types: !13) | 
 | !13 = !{null} | 
 | !14 = !DILocation(line: 2, column: 13, scope: !11) | 
 |  |