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1; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump - | FileCheck %s
2; CHECK: file format Mach-O arm
3; ModuleID = 'test.ll'
4source_filename = "test.i"
5target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
6target triple = "thumbv7s-apple-ios5.0.0"
7
8%struct.vm_object = type { i64 }
9
10; Function Attrs: nounwind ssp
11define void @f(%struct.vm_object* %object, i64* nocapture readonly %start) local_unnamed_addr #0 !dbg !11 {
12entry:
13  tail call void @llvm.dbg.value(metadata %struct.vm_object* %object, metadata !21, metadata !DIExpression()), !dbg !27
14  tail call void @llvm.dbg.value(metadata i64* %start, metadata !22, metadata !DIExpression()), !dbg !28
15  tail call void @llvm.dbg.value(metadata i64 %0, metadata !25, metadata !DIExpression()), !dbg !29
16  tail call void @llvm.dbg.value(metadata i64 %0, metadata !26, metadata !DIExpression(DW_OP_constu, 4096, DW_OP_minus, DW_OP_stack_value)), !dbg !30
17  ; This debug value cannot safely be split into two 32-bit pieces.
18  ; CHECK-NOT: DW_AT_name(offset)
19  tail call void @llvm.dbg.value(metadata i32 undef, metadata !23, metadata !DIExpression()), !dbg !31
20  br i1 undef, label %for.end, label %for.body.lr.ph, !dbg !31
21
22for.body.lr.ph:                                   ; preds = %entry
23  %0 = load i64, i64* %start, align 4, !dbg !33
24  br label %for.body, !dbg !31
25
26for.body:                                         ; preds = %for.body, %for.body.lr.ph
27  %offset.010.in = phi i64 [ %0, %for.body.lr.ph ], [ %offset.010, %for.body ]
28  %head_size.09 = phi i32 [ undef, %for.body.lr.ph ], [ %sub2, %for.body ]
29  %offset.010 = add i64 %offset.010.in, -4096
30  tail call void @llvm.dbg.value(metadata i32 %head_size.09, metadata !23, metadata !DIExpression()), !dbg !30
31  %call = tail call i32 bitcast (i32 (...)* @use to i32 (i64, %struct.vm_object*)*)(i64 %offset.010, %struct.vm_object* %object) #2, !dbg !34
32  %sub2 = add i32 %head_size.09, -4096, !dbg !37
33  tail call void @llvm.dbg.value(metadata i64 %offset.010, metadata !26, metadata !DIExpression(DW_OP_constu, 4096, DW_OP_minus, DW_OP_stack_value)), !dbg !29
34  tail call void @llvm.dbg.value(metadata i32 %sub2, metadata !23, metadata !DIExpression()), !dbg !30
35  %tobool = icmp eq i32 %sub2, 0, !dbg !31
36  br i1 %tobool, label %for.end, label %for.body, !dbg !31, !llvm.loop !38
37
38for.end:                                          ; preds = %for.body, %entry
39  ret void, !dbg !40
40}
41
42declare i32 @use(...) local_unnamed_addr
43
44; Function Attrs: nounwind readnone speculatable
45declare void @llvm.dbg.value(metadata, metadata, metadata) #1
46
47attributes #0 = { nounwind ssp }
48attributes #1 = { nounwind readnone speculatable }
49attributes #2 = { nobuiltin nounwind }
50
51!llvm.dbg.cu = !{!0}
52!llvm.module.flags = !{!5, !6, !7, !8, !9}
53!llvm.ident = !{!10}
54
55!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 317434) (llvm/trunk 317437)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3)
56!1 = !DIFile(filename: "test.i", directory: "/Data/radar/31209283")
57!2 = !{}
58!3 = !{!4}
59!4 = !DIBasicType(name: "long long unsigned int", size: 64, encoding: DW_ATE_unsigned)
60!5 = !{i32 2, !"Dwarf Version", i32 2}
61!6 = !{i32 2, !"Debug Info Version", i32 3}
62!7 = !{i32 1, !"wchar_size", i32 4}
63!8 = !{i32 1, !"min_enum_size", i32 4}
64!9 = !{i32 7, !"PIC Level", i32 2}
65!10 = !{!"clang version 6.0.0 (trunk 317434) (llvm/trunk 317437)"}
66!11 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 6, type: !12, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !20)
67!12 = !DISubroutineType(types: !13)
68!13 = !{null, !14, !19}
69!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "v_t", file: !1, line: 1, baseType: !15)
70!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 32)
71!16 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "v", file: !1, line: 2, size: 64, elements: !17)
72!17 = !{!18}
73!18 = !DIDerivedType(tag: DW_TAG_member, name: "p", scope: !16, file: !1, line: 3, baseType: !4, size: 64)
74!19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 32)
75!20 = !{!21, !22, !23, !25, !26}
76!21 = !DILocalVariable(name: "object", arg: 1, scope: !11, file: !1, line: 6, type: !14)
77!22 = !DILocalVariable(name: "start", arg: 2, scope: !11, file: !1, line: 6, type: !19)
78!23 = !DILocalVariable(name: "head_size", scope: !11, file: !1, line: 7, type: !24)
79!24 = !DIBasicType(name: "unsigned int", size: 32, encoding: DW_ATE_unsigned)
80!25 = !DILocalVariable(name: "orig_start", scope: !11, file: !1, line: 8, type: !4)
81!26 = !DILocalVariable(name: "offset", scope: !11, file: !1, line: 9, type: !4)
82!27 = !DILocation(line: 6, column: 20, scope: !11)
83!28 = !DILocation(line: 6, column: 48, scope: !11)
84!29 = !DILocation(line: 7, column: 12, scope: !11)
85!30 = !DILocation(line: 10, column: 16, scope: !11)
86!31 = !DILocation(line: 11, column: 5, scope: !32)
87!32 = distinct !DILexicalBlock(scope: !11, file: !1, line: 11, column: 5)
88!33 = !DILocation(line: 8, column: 22, scope: !11)
89!34 = !DILocation(line: 13, column: 7, scope: !35)
90!35 = distinct !DILexicalBlock(scope: !36, file: !1, line: 12, column: 75)
91!36 = distinct !DILexicalBlock(scope: !32, file: !1, line: 11, column: 5)
92!37 = !DILocation(line: 12, column: 61, scope: !36)
93!38 = distinct !{!38, !31, !39}
94!39 = !DILocation(line: 14, column: 3, scope: !32)
95!40 = !DILocation(line: 15, column: 1, scope: !11)
96