1; RUN: llc -filetype=asm < %s
2;
3; We check that we don't crash when printing assembly comments that include
4; a DW_OP_bit_piece
5;
6; Regenerate from
7; void fn1() {
8; struct {
9;   int dword[2];
10; } u;
11; u.dword[1] = 0;
12; };
13; via clang++ -g -fno-integrated-as -Os
14
15target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
16target triple = "x86_64-unknown-linux-gnu"
17
18
19%struct.anon = type { [2 x i32] }
20
21; Function Attrs: norecurse nounwind optsize readnone uwtable
22define void @_Z3fn1v() #0 !dbg !4 {
23entry:
24  tail call void @llvm.dbg.declare(metadata %struct.anon* undef, metadata !8, metadata !19), !dbg !20
25  tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !8, metadata !21), !dbg !20
26  ret void, !dbg !22
27}
28
29; Function Attrs: nounwind readnone
30declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
31
32; Function Attrs: nounwind readnone
33declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
34
35attributes #0 = { norecurse nounwind optsize readnone uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
36attributes #1 = { nounwind readnone }
37
38!llvm.dbg.cu = !{!0}
39!llvm.module.flags = !{!16, !17}
40!llvm.ident = !{!18}
41
42!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 256088) (llvm/trunk 256097)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
43!1 = !DIFile(filename: "test.cpp", directory: "/mnt/extra")
44!2 = !{}
45!4 = distinct !DISubprogram(name: "fn1", linkageName: "_Z3fn1v", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !7)
46!5 = !DISubroutineType(types: !6)
47!6 = !{null}
48!7 = !{!8}
49!8 = !DILocalVariable(name: "u", scope: !4, file: !1, line: 4, type: !9)
50!9 = !DICompositeType(tag: DW_TAG_structure_type, scope: !4, file: !1, line: 2, size: 64, align: 32, elements: !10)
51!10 = !{!11}
52!11 = !DIDerivedType(tag: DW_TAG_member, name: "dword", scope: !9, file: !1, line: 3, baseType: !12, size: 64, align: 32)
53!12 = !DICompositeType(tag: DW_TAG_array_type, baseType: !13, size: 64, align: 32, elements: !14)
54!13 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
55!14 = !{!15}
56!15 = !DISubrange(count: 2)
57!16 = !{i32 2, !"Dwarf Version", i32 4}
58!17 = !{i32 2, !"Debug Info Version", i32 3}
59!18 = !{!"clang version 3.8.0 (trunk 256088) (llvm/trunk 256097)"}
60!19 = !DIExpression()
61!20 = !DILocation(line: 4, column: 5, scope: !4)
62!21 = !DIExpression(DW_OP_bit_piece, 32, 32)
63!22 = !DILocation(line: 6, column: 1, scope: !4)
64