1 ; RUN: llc -O0 -fast-isel=true -filetype=obj -o - %s | llvm-dwarfdump -v - | FileCheck %s 2 3 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" 4 target triple = "x86_64-apple-macosx10.6.7" 5 ; rdar://problem/9321650 6 7 ; C++ source: 8 ; class A { public: int x; int y; int z; int o; ~A() { x = 1; }}; 9 ; 10 ; A foo(int i) { 11 ; int j = 0; 12 ; if (i == 42) { 13 ; j = i + 1; 14 ; }; 15 ; A my_a; 16 ; my_a.x = j; 17 ; return my_a; 18 ; } 19 20 ; CHECK: DW_AT_name {{.*}}"j" 21 ; CHECK: DW_TAG_variable 22 ; CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset] ( 23 ; CHECK-NEXT: [0x{{.*}}, 0x{{.*}}): DW_OP_breg7 RSP+8, DW_OP_deref) 24 ; CHECK-NEXT: DW_AT_name {{.*}}"my_a" 25 26 %class.A = type { i32, i32, i32, i32 } 27 28 define void @_Z3fooi(%class.A* sret %agg.result, i32 %i) ssp !dbg !19 { 29 entry: 30 %i.addr = alloca i32, align 4 31 %j = alloca i32, align 4 32 %nrvo = alloca i1 33 %cleanup.dest.slot = alloca i32 34 store i32 %i, i32* %i.addr, align 4 35 call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !26, metadata !DIExpression()), !dbg !27 36 call void @llvm.dbg.declare(metadata i32* %j, metadata !28, metadata !DIExpression()), !dbg !30 37 store i32 0, i32* %j, align 4, !dbg !31 38 %tmp = load i32, i32* %i.addr, align 4, !dbg !32 39 %cmp = icmp eq i32 %tmp, 42, !dbg !32 40 br i1 %cmp, label %if.then, label %if.end, !dbg !32 41 42 if.then: ; preds = %entry 43 %tmp1 = load i32, i32* %i.addr, align 4, !dbg !33 44 %add = add nsw i32 %tmp1, 1, !dbg !33 45 store i32 %add, i32* %j, align 4, !dbg !33 46 br label %if.end, !dbg !35 47 48 if.end: ; preds = %if.then, %entry 49 store i1 false, i1* %nrvo, !dbg !36 50 call void @llvm.dbg.declare(metadata %class.A* %agg.result, metadata !37, metadata !DIExpression()), !dbg !39 51 %tmp2 = load i32, i32* %j, align 4, !dbg !40 52 %x = getelementptr inbounds %class.A, %class.A* %agg.result, i32 0, i32 0, !dbg !40 53 store i32 %tmp2, i32* %x, align 4, !dbg !40 54 store i1 true, i1* %nrvo, !dbg !41 55 store i32 1, i32* %cleanup.dest.slot 56 %nrvo.val = load i1, i1* %nrvo, !dbg !42 57 br i1 %nrvo.val, label %nrvo.skipdtor, label %nrvo.unused, !dbg !42 58 59 nrvo.unused: ; preds = %if.end 60 call void @_ZN1AD1Ev(%class.A* %agg.result), !dbg !42 61 br label %nrvo.skipdtor, !dbg !42 62 63 nrvo.skipdtor: ; preds = %nrvo.unused, %if.end 64 ret void, !dbg !42 65 } 66 67 declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone 68 69 define linkonce_odr void @_ZN1AD1Ev(%class.A* %this) unnamed_addr ssp align 2 !dbg !22 { 70 entry: 71 %this.addr = alloca %class.A*, align 8 72 store %class.A* %this, %class.A** %this.addr, align 8 73 call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !43, metadata !DIExpression()), !dbg !44 74 %this1 = load %class.A*, %class.A** %this.addr 75 call void @_ZN1AD2Ev(%class.A* %this1), !dbg !53 76 ret void, !dbg !45 77 } 78 79 define linkonce_odr void @_ZN1AD2Ev(%class.A* %this) unnamed_addr nounwind ssp align 2 !dbg !25 { 80 entry: 81 %this.addr = alloca %class.A*, align 8 82 store %class.A* %this, %class.A** %this.addr, align 8 83 call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !46, metadata !DIExpression()), !dbg !47 84 %this1 = load %class.A*, %class.A** %this.addr 85 %x = getelementptr inbounds %class.A, %class.A* %this1, i32 0, i32 0, !dbg !48 86 store i32 1, i32* %x, align 4, !dbg !48 87 ret void, !dbg !48 88 } 89 90 !llvm.dbg.cu = !{!2} 91 !llvm.module.flags = !{!52} 92 93 !0 = !DISubprogram(name: "~A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, file: !51, scope: !1, type: !11) 94 !1 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 2, size: 128, align: 32, file: !51, scope: !2, elements: !4) 95 !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.0 (trunk 130127)", isOptimized: false, emissionKind: FullDebug, file: !51, enums: !{}, retainedTypes: !{}) 96 !3 = !DIFile(filename: "a.cc", directory: "/private/tmp") 97 !4 = !{!5, !7, !8, !9, !0, !10, !14} 98 !5 = !DIDerivedType(tag: DW_TAG_member, name: "x", line: 2, size: 32, align: 32, file: !51, scope: !3, baseType: !6) 99 !6 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 100 !7 = !DIDerivedType(tag: DW_TAG_member, name: "y", line: 2, size: 32, align: 32, offset: 32, file: !51, scope: !3, baseType: !6) 101 !8 = !DIDerivedType(tag: DW_TAG_member, name: "z", line: 2, size: 32, align: 32, offset: 64, file: !51, scope: !3, baseType: !6) 102 !9 = !DIDerivedType(tag: DW_TAG_member, name: "o", line: 2, size: 32, align: 32, offset: 96, file: !51, scope: !3, baseType: !6) 103 !10 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, file: !51, scope: !1, type: !11) 104 !11 = !DISubroutineType(types: !12) 105 !12 = !{null, !13} 106 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !3, baseType: !1) 107 !14 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, file: !51, scope: !1, type: !15) 108 !15 = !DISubroutineType(types: !16) 109 !16 = !{null, !13, !17} 110 !17 = !DIDerivedType(tag: DW_TAG_reference_type, scope: !2, baseType: !18) 111 !18 = !DIDerivedType(tag: DW_TAG_const_type, file: !3, baseType: !1) 112 !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) 113 !20 = !DISubroutineType(types: !21) 114 !21 = !{!1} 115 !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) 116 !23 = !DISubroutineType(types: !24) 117 !24 = !{null} 118 !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) 119 !26 = !DILocalVariable(name: "i", line: 4, arg: 1, scope: !19, file: !3, type: !6) 120 !27 = !DILocation(line: 4, column: 11, scope: !19) 121 !28 = !DILocalVariable(name: "j", line: 5, scope: !29, file: !3, type: !6) 122 !29 = distinct !DILexicalBlock(line: 4, column: 14, file: !51, scope: !19) 123 !30 = !DILocation(line: 5, column: 7, scope: !29) 124 !31 = !DILocation(line: 5, column: 12, scope: !29) 125 !32 = !DILocation(line: 6, column: 3, scope: !29) 126 !33 = !DILocation(line: 7, column: 5, scope: !34) 127 !34 = distinct !DILexicalBlock(line: 6, column: 16, file: !51, scope: !29) 128 !35 = !DILocation(line: 8, column: 3, scope: !34) 129 !36 = !DILocation(line: 9, column: 9, scope: !29) 130 !37 = !DILocalVariable(name: "my_a", line: 9, scope: !29, file: !3, type: !38) 131 !38 = !DIDerivedType(tag: DW_TAG_reference_type, file: !3, baseType: !1) 132 !39 = !DILocation(line: 9, column: 5, scope: !29) 133 !40 = !DILocation(line: 10, column: 3, scope: !29) 134 !41 = !DILocation(line: 11, column: 3, scope: !29) 135 !42 = !DILocation(line: 12, column: 1, scope: !29) 136 !43 = !DILocalVariable(name: "this", line: 2, arg: 1, flags: DIFlagArtificial, scope: !22, file: !3, type: !13) 137 !44 = !DILocation(line: 2, column: 47, scope: !22) 138 !45 = !DILocation(line: 2, column: 61, scope: !22) 139 !46 = !DILocalVariable(name: "this", line: 2, arg: 1, flags: DIFlagArtificial, scope: !25, file: !3, type: !13) 140 !47 = !DILocation(line: 2, column: 47, scope: !25) 141 !48 = !DILocation(line: 2, column: 54, scope: !49) 142 !49 = distinct !DILexicalBlock(line: 2, column: 52, file: !51, scope: !25) 143 !51 = !DIFile(filename: "a.cc", directory: "/private/tmp") 144 !52 = !{i32 1, !"Debug Info Version", i32 3} 145 !53 = !DILocation(line: 0, scope: !22) 146
