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1 ; RUN: llc -arm-global-merge -global-merge-group-by-use=false -filetype=obj < %s | llvm-dwarfdump -debug-info -v - | FileCheck %s
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2
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77
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3 ; CHECK: DW_TAG_variable
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4 ; CHECK-NOT: DW_TAG
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5 ; CHECK: DW_AT_name {{.*}} "x1"
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6 ; CHECK-NOT: {{DW_TAG|NULL}}
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121
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7 ; CHECK: DW_AT_location [DW_FORM_exprloc] (DW_OP_addr [[ADDR:0x[0-9a-fA-F]+]])
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77
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8 ; CHECK: DW_TAG_variable
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9 ; CHECK-NOT: DW_TAG
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10 ; CHECK: DW_AT_name {{.*}} "x2"
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11 ; CHECK-NOT: {{DW_TAG|NULL}}
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121
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12 ; CHECK: DW_AT_location [DW_FORM_exprloc] (DW_OP_addr [[ADDR]], DW_OP_plus_uconst 0x4)
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13
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14 source_filename = "test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll"
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15 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32"
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16 target triple = "thumbv7-apple-macosx10.7.0"
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17
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18 @x1 = internal unnamed_addr global i32 1, align 4, !dbg !0
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19 @x2 = internal unnamed_addr global i32 2, align 4, !dbg !6
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20 @x3 = internal unnamed_addr global i32 3, align 4
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21 @x4 = internal unnamed_addr global i32 4, align 4
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22 @x5 = global i32 0, align 4
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23
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24 ; Function Attrs: nounwind optsize ssp
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25 define i32 @get1(i32 %a) #0 !dbg !10 {
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26 tail call void @llvm.dbg.value(metadata i32 %a, metadata !14, metadata !17), !dbg !18
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27 %1 = load i32, i32* @x1, align 4, !dbg !19
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28 tail call void @llvm.dbg.value(metadata i32 %1, metadata !15, metadata !17), !dbg !19
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29 store i32 %a, i32* @x1, align 4, !dbg !19
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30 ret i32 %1, !dbg !19
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31 }
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32
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33 ; Function Attrs: nounwind optsize ssp
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34
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35 define i32 @get2(i32 %a) #0 !dbg !20 {
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36 tail call void @llvm.dbg.value(metadata i32 %a, metadata !22, metadata !17), !dbg !25
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37 %1 = load i32, i32* @x2, align 4, !dbg !26
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38 tail call void @llvm.dbg.value(metadata i32 %1, metadata !23, metadata !17), !dbg !26
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39 store i32 %a, i32* @x2, align 4, !dbg !26
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40 ret i32 %1, !dbg !26
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41 }
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42
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43 ; Function Attrs: nounwind optsize ssp
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44
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45 define i32 @get3(i32 %a) #0 !dbg !27 {
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46 tail call void @llvm.dbg.value(metadata i32 %a, metadata !29, metadata !17), !dbg !32
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47 %1 = load i32, i32* @x3, align 4, !dbg !33
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48 tail call void @llvm.dbg.value(metadata i32 %1, metadata !30, metadata !17), !dbg !33
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49 store i32 %a, i32* @x3, align 4, !dbg !33
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50 ret i32 %1, !dbg !33
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51 }
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52
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53 ; Function Attrs: nounwind optsize ssp
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54
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55 define i32 @get4(i32 %a) #0 !dbg !34 {
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56 tail call void @llvm.dbg.value(metadata i32 %a, metadata !36, metadata !17), !dbg !39
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57 %1 = load i32, i32* @x4, align 4, !dbg !40
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58 tail call void @llvm.dbg.value(metadata i32 %1, metadata !37, metadata !17), !dbg !40
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59 store i32 %a, i32* @x4, align 4, !dbg !40
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60 ret i32 %1, !dbg !40
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61 }
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62
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63 ; Function Attrs: nounwind optsize ssp
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64
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65 define i32 @get5(i32 %a) #0 !dbg !41 {
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66 tail call void @llvm.dbg.value(metadata i32 %a, metadata !43, metadata !17), !dbg !46
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67 %1 = load i32, i32* @x5, align 4, !dbg !47
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68 tail call void @llvm.dbg.value(metadata i32 %1, metadata !44, metadata !17), !dbg !47
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69 store i32 %a, i32* @x5, align 4, !dbg !47
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70 ret i32 %1, !dbg !47
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71 }
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72
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73 ; Function Attrs: nounwind readnone
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74
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75 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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76
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77 attributes #0 = { nounwind optsize ssp }
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78 attributes #1 = { nounwind readnone }
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79
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80 !llvm.dbg.cu = !{!2}
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81 !llvm.module.flags = !{!9}
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82
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83 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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84 !1 = !DIGlobalVariable(name: "x1", scope: !2, file: !3, line: 4, type: !8, isLocal: true, isDefinition: true)
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85 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !4, globals: !5, imports: !4)
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86 !3 = !DIFile(filename: "ss3.c", directory: "/private/tmp")
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87 !4 = !{}
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88 !5 = !{!0, !6}
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89 !6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
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90 !7 = !DIGlobalVariable(name: "x2", scope: !2, file: !3, line: 7, type: !8, isLocal: true, isDefinition: true)
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91 !8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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92 !9 = !{i32 1, !"Debug Info Version", i32 3}
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93 !10 = distinct !DISubprogram(name: "get1", scope: !3, file: !3, line: 5, type: !11, isLocal: false, isDefinition: true, scopeLine: 5, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !13)
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94 !11 = !DISubroutineType(types: !12)
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95 !12 = !{!8}
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96 !13 = !{!14, !15}
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97 !14 = !DILocalVariable(name: "a", arg: 1, scope: !10, file: !3, line: 5, type: !8)
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98 !15 = !DILocalVariable(name: "b", scope: !16, file: !3, line: 5, type: !8)
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99 !16 = distinct !DILexicalBlock(scope: !10, file: !3, line: 5, column: 19)
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100 !17 = !DIExpression()
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101 !18 = !DILocation(line: 5, column: 16, scope: !10)
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102 !19 = !DILocation(line: 5, column: 32, scope: !16)
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103 !20 = distinct !DISubprogram(name: "get2", scope: !3, file: !3, line: 8, type: !11, isLocal: false, isDefinition: true, scopeLine: 8, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !21)
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104 !21 = !{!22, !23}
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105 !22 = !DILocalVariable(name: "a", arg: 1, scope: !20, file: !3, line: 8, type: !8)
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106 !23 = !DILocalVariable(name: "b", scope: !24, file: !3, line: 8, type: !8)
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107 !24 = distinct !DILexicalBlock(scope: !20, file: !3, line: 8, column: 17)
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108 !25 = !DILocation(line: 8, column: 14, scope: !20)
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109 !26 = !DILocation(line: 8, column: 29, scope: !24)
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110 !27 = distinct !DISubprogram(name: "get3", scope: !3, file: !3, line: 11, type: !11, isLocal: false, isDefinition: true, scopeLine: 11, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !28)
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111 !28 = !{!29, !30}
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112 !29 = !DILocalVariable(name: "a", arg: 1, scope: !27, file: !3, line: 11, type: !8)
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113 !30 = !DILocalVariable(name: "b", scope: !31, file: !3, line: 11, type: !8)
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114 !31 = distinct !DILexicalBlock(scope: !27, file: !3, line: 11, column: 19)
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115 !32 = !DILocation(line: 11, column: 16, scope: !27)
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116 !33 = !DILocation(line: 11, column: 32, scope: !31)
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117 !34 = distinct !DISubprogram(name: "get4", scope: !3, file: !3, line: 14, type: !11, isLocal: false, isDefinition: true, scopeLine: 14, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !35)
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118 !35 = !{!36, !37}
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119 !36 = !DILocalVariable(name: "a", arg: 1, scope: !34, file: !3, line: 14, type: !8)
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120 !37 = !DILocalVariable(name: "b", scope: !38, file: !3, line: 14, type: !8)
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121 !38 = distinct !DILexicalBlock(scope: !34, file: !3, line: 14, column: 19)
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122 !39 = !DILocation(line: 14, column: 16, scope: !34)
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123 !40 = !DILocation(line: 14, column: 32, scope: !38)
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124 !41 = distinct !DISubprogram(name: "get5", scope: !3, file: !3, line: 17, type: !11, isLocal: false, isDefinition: true, scopeLine: 17, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !42)
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125 !42 = !{!43, !44}
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126 !43 = !DILocalVariable(name: "a", arg: 1, scope: !41, file: !3, line: 17, type: !8)
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127 !44 = !DILocalVariable(name: "b", scope: !45, file: !3, line: 17, type: !8)
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128 !45 = distinct !DILexicalBlock(scope: !41, file: !3, line: 17, column: 19)
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129 !46 = !DILocation(line: 17, column: 16, scope: !41)
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130 !47 = !DILocation(line: 17, column: 32, scope: !45)
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131
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