1; RUN: llc -arm-global-merge -global-merge-group-by-use=false -filetype=obj < %s | llvm-dwarfdump -debug-info -v - | FileCheck %s
2
3; CHECK: DW_TAG_variable
4; CHECK-NOT: DW_TAG
5; CHECK:    DW_AT_name {{.*}} "x1"
6; CHECK-NOT: {{DW_TAG|NULL}}
7; CHECK:    DW_AT_location [DW_FORM_exprloc]        (DW_OP_addr [[ADDR:0x[0-9a-fA-F]+]])
8; CHECK: DW_TAG_variable
9; CHECK-NOT: DW_TAG
10; CHECK:    DW_AT_name {{.*}} "x2"
11; CHECK-NOT: {{DW_TAG|NULL}}
12; CHECK:    DW_AT_location [DW_FORM_exprloc]        (DW_OP_addr [[ADDR]], DW_OP_plus_uconst 0x4)
13
14source_filename = "test/CodeGen/ARM/2011-08-02-MergedGlobalDbg.ll"
15target 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"
16target triple = "thumbv7-apple-macosx10.7.0"
17
18@x1 = internal unnamed_addr global i32 1, align 4, !dbg !0
19@x2 = internal unnamed_addr global i32 2, align 4, !dbg !6
20@x3 = internal unnamed_addr global i32 3, align 4
21@x4 = internal unnamed_addr global i32 4, align 4
22@x5 = global i32 0, align 4
23
24; Function Attrs: nounwind optsize ssp
25define i32 @get1(i32 %a) #0 !dbg !10 {
26  tail call void @llvm.dbg.value(metadata i32 %a, metadata !14, metadata !17), !dbg !18
27  %1 = load i32, i32* @x1, align 4, !dbg !19
28  tail call void @llvm.dbg.value(metadata i32 %1, metadata !15, metadata !17), !dbg !19
29  store i32 %a, i32* @x1, align 4, !dbg !19
30  ret i32 %1, !dbg !19
31}
32
33; Function Attrs: nounwind optsize ssp
34
35define i32 @get2(i32 %a) #0 !dbg !20 {
36  tail call void @llvm.dbg.value(metadata i32 %a, metadata !22, metadata !17), !dbg !25
37  %1 = load i32, i32* @x2, align 4, !dbg !26
38  tail call void @llvm.dbg.value(metadata i32 %1, metadata !23, metadata !17), !dbg !26
39  store i32 %a, i32* @x2, align 4, !dbg !26
40  ret i32 %1, !dbg !26
41}
42
43; Function Attrs: nounwind optsize ssp
44
45define i32 @get3(i32 %a) #0 !dbg !27 {
46  tail call void @llvm.dbg.value(metadata i32 %a, metadata !29, metadata !17), !dbg !32
47  %1 = load i32, i32* @x3, align 4, !dbg !33
48  tail call void @llvm.dbg.value(metadata i32 %1, metadata !30, metadata !17), !dbg !33
49  store i32 %a, i32* @x3, align 4, !dbg !33
50  ret i32 %1, !dbg !33
51}
52
53; Function Attrs: nounwind optsize ssp
54
55define i32 @get4(i32 %a) #0 !dbg !34 {
56  tail call void @llvm.dbg.value(metadata i32 %a, metadata !36, metadata !17), !dbg !39
57  %1 = load i32, i32* @x4, align 4, !dbg !40
58  tail call void @llvm.dbg.value(metadata i32 %1, metadata !37, metadata !17), !dbg !40
59  store i32 %a, i32* @x4, align 4, !dbg !40
60  ret i32 %1, !dbg !40
61}
62
63; Function Attrs: nounwind optsize ssp
64
65define i32 @get5(i32 %a) #0 !dbg !41 {
66  tail call void @llvm.dbg.value(metadata i32 %a, metadata !43, metadata !17), !dbg !46
67  %1 = load i32, i32* @x5, align 4, !dbg !47
68  tail call void @llvm.dbg.value(metadata i32 %1, metadata !44, metadata !17), !dbg !47
69  store i32 %a, i32* @x5, align 4, !dbg !47
70  ret i32 %1, !dbg !47
71}
72
73; Function Attrs: nounwind readnone
74
75declare void @llvm.dbg.value(metadata, metadata, metadata) #1
76
77attributes #0 = { nounwind optsize ssp }
78attributes #1 = { nounwind readnone }
79
80!llvm.dbg.cu = !{!2}
81!llvm.module.flags = !{!9}
82
83!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
84!1 = !DIGlobalVariable(name: "x1", scope: !2, file: !3, line: 4, type: !8, isLocal: true, isDefinition: true)
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)
86!3 = !DIFile(filename: "ss3.c", directory: "/private/tmp")
87!4 = !{}
88!5 = !{!0, !6}
89!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
90!7 = !DIGlobalVariable(name: "x2", scope: !2, file: !3, line: 7, type: !8, isLocal: true, isDefinition: true)
91!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
92!9 = !{i32 1, !"Debug Info Version", i32 3}
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, retainedNodes: !13)
94!11 = !DISubroutineType(types: !12)
95!12 = !{!8}
96!13 = !{!14, !15}
97!14 = !DILocalVariable(name: "a", arg: 1, scope: !10, file: !3, line: 5, type: !8)
98!15 = !DILocalVariable(name: "b", scope: !16, file: !3, line: 5, type: !8)
99!16 = distinct !DILexicalBlock(scope: !10, file: !3, line: 5, column: 19)
100!17 = !DIExpression()
101!18 = !DILocation(line: 5, column: 16, scope: !10)
102!19 = !DILocation(line: 5, column: 32, scope: !16)
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, retainedNodes: !21)
104!21 = !{!22, !23}
105!22 = !DILocalVariable(name: "a", arg: 1, scope: !20, file: !3, line: 8, type: !8)
106!23 = !DILocalVariable(name: "b", scope: !24, file: !3, line: 8, type: !8)
107!24 = distinct !DILexicalBlock(scope: !20, file: !3, line: 8, column: 17)
108!25 = !DILocation(line: 8, column: 14, scope: !20)
109!26 = !DILocation(line: 8, column: 29, scope: !24)
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, retainedNodes: !28)
111!28 = !{!29, !30}
112!29 = !DILocalVariable(name: "a", arg: 1, scope: !27, file: !3, line: 11, type: !8)
113!30 = !DILocalVariable(name: "b", scope: !31, file: !3, line: 11, type: !8)
114!31 = distinct !DILexicalBlock(scope: !27, file: !3, line: 11, column: 19)
115!32 = !DILocation(line: 11, column: 16, scope: !27)
116!33 = !DILocation(line: 11, column: 32, scope: !31)
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, retainedNodes: !35)
118!35 = !{!36, !37}
119!36 = !DILocalVariable(name: "a", arg: 1, scope: !34, file: !3, line: 14, type: !8)
120!37 = !DILocalVariable(name: "b", scope: !38, file: !3, line: 14, type: !8)
121!38 = distinct !DILexicalBlock(scope: !34, file: !3, line: 14, column: 19)
122!39 = !DILocation(line: 14, column: 16, scope: !34)
123!40 = !DILocation(line: 14, column: 32, scope: !38)
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, retainedNodes: !42)
125!42 = !{!43, !44}
126!43 = !DILocalVariable(name: "a", arg: 1, scope: !41, file: !3, line: 17, type: !8)
127!44 = !DILocalVariable(name: "b", scope: !45, file: !3, line: 17, type: !8)
128!45 = distinct !DILexicalBlock(scope: !41, file: !3, line: 17, column: 19)
129!46 = !DILocation(line: 17, column: 16, scope: !41)
130!47 = !DILocation(line: 17, column: 32, scope: !45)
131
132