xref: /llvm-project/llvm/test/CodeGen/AArch64/stack-tagging-dbg-value-tag-offset.ll (revision 094572701dce4aaf36f4521d6cf750420d39f206) 
1; RUN: opt -aarch64-stack-tagging -stack-tagging-record-stack-history=instr -S -o - %s | 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-android10000"
5
6define dso_local void @f() sanitize_memtag !dbg !14 {
7  %a1 = alloca i32, align 4
8  %a2 = alloca i32, align 4
9; CHECK: #dbg_value(i32 1, {{.*}}, !DIExpression(),
10  call void @llvm.dbg.value(metadata i32 1, metadata !20, metadata !DIExpression()), !dbg !22
11  store i32 1, ptr %a2, align 4, !dbg !23, !tbaa !24
12; CHECK: #dbg_value(ptr %a1, {{.*}} !DIExpression(DW_OP_LLVM_tag_offset, 0, DW_OP_deref),
13  call void @llvm.dbg.value(metadata ptr %a1, metadata !18, metadata !DIExpression(DW_OP_deref)), !dbg !22
14  call void @use(ptr nonnull %a1), !dbg !28
15; CHECK: #dbg_value(ptr %a2, {{.*}} !DIExpression(DW_OP_LLVM_tag_offset, 1, DW_OP_deref),
16  call void @llvm.dbg.value(metadata ptr %a2, metadata !20, metadata !DIExpression(DW_OP_deref)), !dbg !22
17  call void @use(ptr nonnull %a2), !dbg !29
18  ret void, !dbg !30
19}
20
21declare !dbg !5 void @use(ptr)
22
23declare void @llvm.dbg.value(metadata, metadata, metadata)
24
25!llvm.dbg.cu = !{!0}
26!llvm.module.flags = !{!8, !9, !10, !11, !12}
27!llvm.ident = !{!13}
28
29!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)
30!1 = !DIFile(filename: "dbg.cc", directory: "/tmp")
31!2 = !{}
32!3 = !{!4, !5}
33!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
34!5 = !DISubprogram(name: "use", scope: !1, file: !1, line: 2, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
35!6 = !DISubroutineType(types: !7)
36!7 = !{null, !4}
37!8 = !{i32 7, !"Dwarf Version", i32 4}
38!9 = !{i32 2, !"Debug Info Version", i32 3}
39!10 = !{i32 1, !"wchar_size", i32 4}
40!11 = !{i32 7, !"PIC Level", i32 2}
41!12 = !{i32 7, !"PIE Level", i32 2}
42!13 = !{!"clang version 10.0.0 (git@github.com:llvm/llvm-project.git 5560dd08b99a0e8b0c55116376624e4f967caec5)"}
43!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)
44!15 = !DISubroutineType(types: !16)
45!16 = !{null}
46!17 = !{!18, !20}
47!18 = !DILocalVariable(name: "x", scope: !14, file: !1, line: 5, type: !19)
48!19 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
49!20 = !DILocalVariable(name: "y", scope: !14, file: !1, line: 5, type: !19)
50!21 = !DILocation(line: 5, column: 3, scope: !14)
51!22 = !DILocation(line: 0, scope: !14)
52!23 = !DILocation(line: 5, column: 10, scope: !14)
53!24 = !{!25, !25, i64 0}
54!25 = !{!"int", !26, i64 0}
55!26 = !{!"omnipotent char", !27, i64 0}
56!27 = !{!"Simple C++ TBAA"}
57!28 = !DILocation(line: 6, column: 3, scope: !14)
58!29 = !DILocation(line: 7, column: 3, scope: !14)
59!30 = !DILocation(line: 8, column: 1, scope: !14)
60