1; RUN: llc -arm-global-merge -global-merge-group-by-use=false -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s 2 3target 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" 4target triple = "thumbv7-apple-darwin10" 5 6@x1 = internal global i8 1, align 1 7@x2 = internal global i8 1, align 1 8@x3 = internal global i8 1, align 1 9@x4 = internal global i8 1, align 1 10@x5 = global i8 1, align 1 11 12; Check debug info output for merged global. 13; DW_AT_location 14; 0x03 DW_OP_addr 15; 0x.. .long __MergedGlobals 16; 0x10 DW_OP_constu 17; 0x.. offset 18; 0x22 DW_OP_plus 19 20; CHECK: DW_TAG_variable 21; CHECK-NOT: DW_TAG 22; CHECK: DW_AT_name {{.*}} "x1" 23; CHECK-NOT: {{DW_TAG|NULL}} 24; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x8> 03 [[ADDR:.. .. .. ..]] 10 00 22 ) 25; CHECK: DW_TAG_variable 26; CHECK-NOT: DW_TAG 27; CHECK: DW_AT_name {{.*}} "x2" 28; CHECK-NOT: {{DW_TAG|NULL}} 29; CHECK: DW_AT_location [DW_FORM_exprloc] (<0x8> 03 [[ADDR]] 10 01 22 ) 30 31define zeroext i8 @get1(i8 zeroext %a) nounwind optsize !dbg !0 { 32entry: 33 tail call void @llvm.dbg.value(metadata i8 %a, i64 0, metadata !10, metadata !DIExpression()), !dbg !30 34 %0 = load i8, i8* @x1, align 4, !dbg !30 35 tail call void @llvm.dbg.value(metadata i8 %0, i64 0, metadata !11, metadata !DIExpression()), !dbg !30 36 store i8 %a, i8* @x1, align 4, !dbg !30 37 ret i8 %0, !dbg !31 38} 39 40declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone 41 42define zeroext i8 @get2(i8 zeroext %a) nounwind optsize !dbg !6 { 43entry: 44 tail call void @llvm.dbg.value(metadata i8 %a, i64 0, metadata !18, metadata !DIExpression()), !dbg !32 45 %0 = load i8, i8* @x2, align 4, !dbg !32 46 tail call void @llvm.dbg.value(metadata i8 %0, i64 0, metadata !19, metadata !DIExpression()), !dbg !32 47 store i8 %a, i8* @x2, align 4, !dbg !32 48 ret i8 %0, !dbg !33 49} 50 51define zeroext i8 @get3(i8 zeroext %a) nounwind optsize !dbg !7 { 52entry: 53 tail call void @llvm.dbg.value(metadata i8 %a, i64 0, metadata !21, metadata !DIExpression()), !dbg !34 54 %0 = load i8, i8* @x3, align 4, !dbg !34 55 tail call void @llvm.dbg.value(metadata i8 %0, i64 0, metadata !22, metadata !DIExpression()), !dbg !34 56 store i8 %a, i8* @x3, align 4, !dbg !34 57 ret i8 %0, !dbg !35 58} 59 60define zeroext i8 @get4(i8 zeroext %a) nounwind optsize !dbg !8 { 61entry: 62 tail call void @llvm.dbg.value(metadata i8 %a, i64 0, metadata !24, metadata !DIExpression()), !dbg !36 63 %0 = load i8, i8* @x4, align 4, !dbg !36 64 tail call void @llvm.dbg.value(metadata i8 %0, i64 0, metadata !25, metadata !DIExpression()), !dbg !36 65 store i8 %a, i8* @x4, align 4, !dbg !36 66 ret i8 %0, !dbg !37 67} 68 69define zeroext i8 @get5(i8 zeroext %a) nounwind optsize !dbg !9 { 70entry: 71 tail call void @llvm.dbg.value(metadata i8 %a, i64 0, metadata !27, metadata !DIExpression()), !dbg !38 72 %0 = load i8, i8* @x5, align 4, !dbg !38 73 tail call void @llvm.dbg.value(metadata i8 %0, i64 0, metadata !28, metadata !DIExpression()), !dbg !38 74 store i8 %a, i8* @x5, align 4, !dbg !38 75 ret i8 %0, !dbg !39 76} 77 78!llvm.dbg.cu = !{!2} 79!llvm.module.flags = !{!49} 80 81!0 = distinct !DISubprogram(name: "get1", linkageName: "get1", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 4, file: !47, scope: !1, type: !3, variables: !42) 82!1 = !DIFile(filename: "foo.c", directory: "/tmp/") 83!2 = distinct !DICompileUnit(language: DW_LANG_C89, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2369.8)", isOptimized: true, emissionKind: FullDebug, file: !47, enums: !48, retainedTypes: !48, globals: !41, imports: !48) 84!3 = !DISubroutineType(types: !4) 85!4 = !{!5, !5} 86!5 = !DIBasicType(tag: DW_TAG_base_type, name: "_Bool", size: 8, align: 8, encoding: DW_ATE_boolean) 87!6 = distinct !DISubprogram(name: "get2", linkageName: "get2", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 7, file: !47, scope: !1, type: !3, variables: !43) 88!7 = distinct !DISubprogram(name: "get3", linkageName: "get3", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 10, file: !47, scope: !1, type: !3, variables: !44) 89!8 = distinct !DISubprogram(name: "get4", linkageName: "get4", line: 13, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 13, file: !47, scope: !1, type: !3, variables: !45) 90!9 = distinct !DISubprogram(name: "get5", linkageName: "get5", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 16, file: !47, scope: !1, type: !3, variables: !46) 91!10 = !DILocalVariable(name: "a", line: 4, arg: 1, scope: !0, file: !1, type: !5) 92!11 = !DILocalVariable(name: "b", line: 4, scope: !12, file: !1, type: !5) 93!12 = distinct !DILexicalBlock(line: 4, column: 0, file: !47, scope: !0) 94!13 = !DIGlobalVariable(name: "x1", line: 3, isLocal: true, isDefinition: true, scope: !1, file: !1, type: !5, variable: i8* @x1) 95!14 = !DIGlobalVariable(name: "x2", line: 6, isLocal: true, isDefinition: true, scope: !1, file: !1, type: !5, variable: i8* @x2) 96!15 = !DIGlobalVariable(name: "x3", line: 9, isLocal: true, isDefinition: true, scope: !1, file: !1, type: !5, variable: i8* @x3) 97!16 = !DIGlobalVariable(name: "x4", line: 12, isLocal: true, isDefinition: true, scope: !1, file: !1, type: !5, variable: i8* @x4) 98!17 = !DIGlobalVariable(name: "x5", line: 15, isLocal: false, isDefinition: true, scope: !1, file: !1, type: !5, variable: i8* @x5) 99!18 = !DILocalVariable(name: "a", line: 7, arg: 1, scope: !6, file: !1, type: !5) 100!19 = !DILocalVariable(name: "b", line: 7, scope: !20, file: !1, type: !5) 101!20 = distinct !DILexicalBlock(line: 7, column: 0, file: !47, scope: !6) 102!21 = !DILocalVariable(name: "a", line: 10, arg: 1, scope: !7, file: !1, type: !5) 103!22 = !DILocalVariable(name: "b", line: 10, scope: !23, file: !1, type: !5) 104!23 = distinct !DILexicalBlock(line: 10, column: 0, file: !47, scope: !7) 105!24 = !DILocalVariable(name: "a", line: 13, arg: 1, scope: !8, file: !1, type: !5) 106!25 = !DILocalVariable(name: "b", line: 13, scope: !26, file: !1, type: !5) 107!26 = distinct !DILexicalBlock(line: 13, column: 0, file: !47, scope: !8) 108!27 = !DILocalVariable(name: "a", line: 16, arg: 1, scope: !9, file: !1, type: !5) 109!28 = !DILocalVariable(name: "b", line: 16, scope: !29, file: !1, type: !5) 110!29 = distinct !DILexicalBlock(line: 16, column: 0, file: !47, scope: !9) 111!30 = !DILocation(line: 4, scope: !0) 112!31 = !DILocation(line: 4, scope: !12) 113!32 = !DILocation(line: 7, scope: !6) 114!33 = !DILocation(line: 7, scope: !20) 115!34 = !DILocation(line: 10, scope: !7) 116!35 = !DILocation(line: 10, scope: !23) 117!36 = !DILocation(line: 13, scope: !8) 118!37 = !DILocation(line: 13, scope: !26) 119!38 = !DILocation(line: 16, scope: !9) 120!39 = !DILocation(line: 16, scope: !29) 121!41 = !{!13, !14, !15, !16, !17} 122!42 = !{!10, !11} 123!43 = !{!18, !19} 124!44 = !{!21, !22} 125!45 = !{!24, !25} 126!46 = !{!27, !28} 127!47 = !DIFile(filename: "foo.c", directory: "/tmp/") 128!48 = !{} 129!49 = !{i32 1, !"Debug Info Version", i32 3} 130