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      1 ; RUN: llc -O0 -fast-isel=false < %s | FileCheck %s
      2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
      3 target triple = "x86_64-apple-macosx10.6.7"
      4 ;Radar 9321650
      5 
      6 ;CHECK: ##DEBUG_VALUE: my_a 
      7 
      8 %class.A = type { i32, i32, i32, i32 }
      9 
     10 define void @_Z3fooi(%class.A* sret %agg.result, i32 %i) ssp !dbg !19 {
     11 entry:
     12   %i.addr = alloca i32, align 4
     13   %j = alloca i32, align 4
     14   %nrvo = alloca i1
     15   %cleanup.dest.slot = alloca i32
     16   store i32 %i, i32* %i.addr, align 4
     17   call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !26, metadata !DIExpression()), !dbg !27
     18   call void @llvm.dbg.declare(metadata i32* %j, metadata !28, metadata !DIExpression()), !dbg !30
     19   store i32 0, i32* %j, align 4, !dbg !31
     20   %tmp = load i32, i32* %i.addr, align 4, !dbg !32
     21   %cmp = icmp eq i32 %tmp, 42, !dbg !32
     22   br i1 %cmp, label %if.then, label %if.end, !dbg !32
     23 
     24 if.then:                                          ; preds = %entry
     25   %tmp1 = load i32, i32* %i.addr, align 4, !dbg !33
     26   %add = add nsw i32 %tmp1, 1, !dbg !33
     27   store i32 %add, i32* %j, align 4, !dbg !33
     28   br label %if.end, !dbg !35
     29 
     30 if.end:                                           ; preds = %if.then, %entry
     31   store i1 false, i1* %nrvo, !dbg !36
     32   call void @llvm.dbg.declare(metadata %class.A* %agg.result, metadata !37, metadata !DIExpression()), !dbg !39
     33   %tmp2 = load i32, i32* %j, align 4, !dbg !40
     34   %x = getelementptr inbounds %class.A, %class.A* %agg.result, i32 0, i32 0, !dbg !40
     35   store i32 %tmp2, i32* %x, align 4, !dbg !40
     36   store i1 true, i1* %nrvo, !dbg !41
     37   store i32 1, i32* %cleanup.dest.slot
     38   %nrvo.val = load i1, i1* %nrvo, !dbg !42
     39   br i1 %nrvo.val, label %nrvo.skipdtor, label %nrvo.unused, !dbg !42
     40 
     41 nrvo.unused:                                      ; preds = %if.end
     42   call void @_ZN1AD1Ev(%class.A* %agg.result), !dbg !42
     43   br label %nrvo.skipdtor, !dbg !42
     44 
     45 nrvo.skipdtor:                                    ; preds = %nrvo.unused, %if.end
     46   ret void, !dbg !42
     47 }
     48 
     49 declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
     50 
     51 define linkonce_odr void @_ZN1AD1Ev(%class.A* %this) unnamed_addr ssp align 2 !dbg !22 {
     52 entry:
     53   %this.addr = alloca %class.A*, align 8
     54   store %class.A* %this, %class.A** %this.addr, align 8
     55   call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !43, metadata !DIExpression()), !dbg !44
     56   %this1 = load %class.A*, %class.A** %this.addr
     57   call void @_ZN1AD2Ev(%class.A* %this1), !dbg !53
     58   ret void, !dbg !45
     59 }
     60 
     61 define linkonce_odr void @_ZN1AD2Ev(%class.A* %this) unnamed_addr nounwind ssp align 2 !dbg !25 {
     62 entry:
     63   %this.addr = alloca %class.A*, align 8
     64   store %class.A* %this, %class.A** %this.addr, align 8
     65   call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !46, metadata !DIExpression()), !dbg !47
     66   %this1 = load %class.A*, %class.A** %this.addr
     67   %x = getelementptr inbounds %class.A, %class.A* %this1, i32 0, i32 0, !dbg !48
     68   store i32 1, i32* %x, align 4, !dbg !48
     69   ret void, !dbg !48
     70 }
     71 
     72 !llvm.dbg.cu = !{!2}
     73 !llvm.module.flags = !{!52}
     74 
     75 !0 = !DISubprogram(name: "~A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !51, scope: !1, type: !11)
     76 !1 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 2, size: 128, align: 32, file: !51, scope: !2, elements: !4)
     77 !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.0 (trunk 130127)", isOptimized: false, emissionKind: FullDebug, file: !51, enums: !{}, retainedTypes: !{})
     78 !3 = !DIFile(filename: "a.cc", directory: "/private/tmp")
     79 !4 = !{!5, !7, !8, !9, !0, !10, !14}
     80 !5 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 2, size: 32, align: 32, file: !51, scope: !3, baseType: !6)
     81 !6 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
     82 !7 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 2, size: 32, align: 32, offset: 32, file: !51, scope: !3, baseType: !6)
     83 !8 = !DIDerivedType(tag: DW_TAG_member, name: "z", line: 2, size: 32, align: 32, offset: 64, file: !51, scope: !3, baseType: !6)
     84 !9 = !DIDerivedType(tag: DW_TAG_member, name: "o", line: 2, size: 32, align: 32, offset: 96, file: !51, scope: !3, baseType: !6)
     85 !10 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, file: !51, scope: !1, type: !11)
     86 !11 = !DISubroutineType(types: !12)
     87 !12 = !{null, !13}
     88 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !3, baseType: !1)
     89 !14 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, file: !51, scope: !1, type: !15)
     90 !15 = !DISubroutineType(types: !16)
     91 !16 = !{null, !13, !17}
     92 !17 = !DIDerivedType(tag: DW_TAG_reference_type, scope: !2, baseType: !18)
     93 !18 = !DIDerivedType(tag: DW_TAG_const_type, file: !3, baseType: !1)
     94 !19 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooi", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !51, scope: !3, type: !20)
     95 !20 = !DISubroutineType(types: !21)
     96 !21 = !{!1}
     97 !22 = distinct !DISubprogram(name: "~A", linkageName: "_ZN1AD1Ev", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !51, scope: !3, type: !23)
     98 !23 = !DISubroutineType(types: !24)
     99 !24 = !{null}
    100 !25 = distinct !DISubprogram(name: "~A", linkageName: "_ZN1AD2Ev", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !2, file: !51, scope: !3, type: !23)
    101 !26 = !DILocalVariable(name: "i", line: 4, arg: 1, scope: !19, file: !3, type: !6)
    102 !27 = !DILocation(line: 4, column: 11, scope: !19)
    103 !28 = !DILocalVariable(name: "j", line: 5, scope: !29, file: !3, type: !6)
    104 !29 = distinct !DILexicalBlock(line: 4, column: 14, file: !51, scope: !19)
    105 !30 = !DILocation(line: 5, column: 7, scope: !29)
    106 !31 = !DILocation(line: 5, column: 12, scope: !29)
    107 !32 = !DILocation(line: 6, column: 3, scope: !29)
    108 !33 = !DILocation(line: 7, column: 5, scope: !34)
    109 !34 = distinct !DILexicalBlock(line: 6, column: 16, file: !51, scope: !29)
    110 !35 = !DILocation(line: 8, column: 3, scope: !34)
    111 !36 = !DILocation(line: 9, column: 9, scope: !29)
    112 !37 = !DILocalVariable(name: "my_a", line: 9, scope: !29, file: !3, type: !38)
    113 !38 = !DIDerivedType(tag: DW_TAG_reference_type, file: !3, baseType: !1)
    114 !39 = !DILocation(line: 9, column: 5, scope: !29)
    115 !40 = !DILocation(line: 10, column: 3, scope: !29)
    116 !41 = !DILocation(line: 11, column: 3, scope: !29)
    117 !42 = !DILocation(line: 12, column: 1, scope: !29)
    118 !43 = !DILocalVariable(name: "this", line: 2, arg: 1, flags: DIFlagArtificial, scope: !22, file: !3, type: !13)
    119 !44 = !DILocation(line: 2, column: 47, scope: !22)
    120 !45 = !DILocation(line: 2, column: 61, scope: !22)
    121 !46 = !DILocalVariable(name: "this", line: 2, arg: 1, flags: DIFlagArtificial, scope: !25, file: !3, type: !13)
    122 !47 = !DILocation(line: 2, column: 47, scope: !25)
    123 !48 = !DILocation(line: 2, column: 54, scope: !49)
    124 !49 = distinct !DILexicalBlock(line: 2, column: 52, file: !51, scope: !25)
    125 !51 = !DIFile(filename: "a.cc", directory: "/private/tmp")
    126 !52 = !{i32 1, !"Debug Info Version", i32 3}
    127 !53 = !DILocation(line: 0, scope: !22)
    128