xref: /llvm-project/llvm/test/CodeGen/AArch64/dbg-value-tag-offset.ll (revision 5ddce70ef0e5a641d7fea95e31fc5e2439cb98cb) 
1; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump - | FileCheck %s
2
3target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
4target triple = "aarch64-unknown-linux-android24"
5
6; CHECK:      DW_TAG_variable
7; CHECK-NOT:  DW_TAG
8; CHECK:        DW_AT_LLVM_tag_offset (0x80)
9; CHECK-NEXT:   DW_AT_name    ("y")
10
11; CHECK:      DW_TAG_variable
12; CHECK-NOT:  DW_TAG
13; CHECK:        DW_AT_LLVM_tag_offset (0x00)
14; CHECK-NEXT:   DW_AT_name    ("x")
15
16define dso_local void @f() !dbg !14 {
17  %1 = alloca i32, align 4
18  %2 = alloca i32, align 4
19  call void @llvm.dbg.value(metadata i32 1, metadata !20, metadata !DIExpression()), !dbg !22
20  store i32 1, ptr %2, align 4, !dbg !23, !tbaa !24
21  call void @llvm.dbg.value(metadata ptr %1, metadata !18, metadata !DIExpression(DW_OP_LLVM_tag_offset, 0, DW_OP_deref)), !dbg !22
22  call void @use(ptr nonnull %1), !dbg !28
23  call void @llvm.dbg.value(metadata ptr %2, metadata !20, metadata !DIExpression(DW_OP_LLVM_tag_offset, 128, DW_OP_deref)), !dbg !22
24  call void @use(ptr nonnull %2), !dbg !29
25  ret void, !dbg !30
26}
27
28declare !dbg !5 void @use(ptr)
29
30declare void @llvm.dbg.value(metadata, metadata, metadata)
31
32!llvm.dbg.cu = !{!0}
33!llvm.module.flags = !{!8, !9, !10, !11, !12}
34!llvm.ident = !{!13}
35
36!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0 (git@github.com:llvm/llvm-project.git 5560dd08b99a0e8b0c55116376624e4f967caec5)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
37!1 = !DIFile(filename: "dbg.cc", directory: "/tmp")
38!2 = !{}
39!3 = !{!4, !5}
40!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
41!5 = !DISubprogram(name: "use", scope: !1, file: !1, line: 2, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
42!6 = !DISubroutineType(types: !7)
43!7 = !{null, !4}
44!8 = !{i32 7, !"Dwarf Version", i32 4}
45!9 = !{i32 2, !"Debug Info Version", i32 3}
46!10 = !{i32 1, !"wchar_size", i32 4}
47!11 = !{i32 7, !"PIC Level", i32 2}
48!12 = !{i32 7, !"PIE Level", i32 2}
49!13 = !{!"clang version 10.0.0 (git@github.com:llvm/llvm-project.git 5560dd08b99a0e8b0c55116376624e4f967caec5)"}
50!14 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 4, type: !15, scopeLine: 4, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17)
51!15 = !DISubroutineType(types: !16)
52!16 = !{null}
53!17 = !{!18, !20}
54!18 = !DILocalVariable(name: "x", scope: !14, file: !1, line: 5, type: !19)
55!19 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
56!20 = !DILocalVariable(name: "y", scope: !14, file: !1, line: 5, type: !19)
57!21 = !DILocation(line: 5, column: 3, scope: !14)
58!22 = !DILocation(line: 0, scope: !14)
59!23 = !DILocation(line: 5, column: 10, scope: !14)
60!24 = !{!25, !25, i64 0}
61!25 = !{!"int", !26, i64 0}
62!26 = !{!"omnipotent char", !27, i64 0}
63!27 = !{!"Simple C++ TBAA"}
64!28 = !DILocation(line: 6, column: 3, scope: !14)
65!29 = !DILocation(line: 7, column: 3, scope: !14)
66!30 = !DILocation(line: 8, column: 1, scope: !14)
67