1 ; REQUIRES: x86-registered-target
2 ; RUN: llc -filetype=obj -mtriple=x86_64-unknown-linux-gnu -o %t %s
3 ; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s
5 ; #define __tag1 __attribute__((btf_decl_tag("tag1")))
6 ; #define __tag2 __attribute__((btf_decl_tag("tag2")))
12 ; int g1 __tag1 __tag2;
14 ; int __tag1 __tag2 foo(struct t1 *arg __tag1 __tag2) {
18 ; clang -target x86_64 -g -S -emit-llvm t.c
20 %struct.t1 = type { i32 }
22 @g1 = dso_local global i32 0, align 4, !dbg !0
24 ; Function Attrs: noinline nounwind optnone uwtable
25 define dso_local i32 @foo(ptr %arg) #0 !dbg !16 {
27 %arg.addr = alloca ptr, align 8
28 store ptr %arg, ptr %arg.addr, align 8
29 call void @llvm.dbg.declare(metadata ptr %arg.addr, metadata !23, metadata !DIExpression()), !dbg !24
30 %0 = load ptr, ptr %arg.addr, align 8, !dbg !25
31 %1 = load i32, ptr %0, align 4, !dbg !26
35 ; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
36 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
38 attributes #0 = { noinline nounwind optnone uwtable "frame-pointer"="all" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
39 attributes #1 = { nofree nosync nounwind readnone speculatable willreturn }
42 !llvm.module.flags = !{!10, !11, !12, !13, !14}
45 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
46 !1 = distinct !DIGlobalVariable(name: "g1", scope: !2, file: !3, line: 8, type: !6, isLocal: false, isDefinition: true, annotations: !7)
48 ; CHECK: DW_TAG_variable
49 ; CHECK-NEXT: DW_AT_name ("g1")
50 ; CHECK: DW_TAG_LLVM_annotation
51 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
52 ; CHECK-NEXT: DW_AT_const_value ("tag1")
54 ; CHECK-NEXT: DW_TAG_LLVM_annotation
55 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
56 ; CHECK-NEXT: DW_AT_const_value ("tag2")
60 !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 13.0.0 (https://github.com/llvm/llvm-project.git 305231a4f71b68945b4dd92925c76ff49e377c86)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)
61 !3 = !DIFile(filename: "t.c", directory: "/tmp/home/yhs/work/tests/llvm/btf_tag")
64 !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
66 !8 = !{!"btf_decl_tag", !"tag1"}
67 !9 = !{!"btf_decl_tag", !"tag2"}
68 !10 = !{i32 7, !"Dwarf Version", i32 4}
69 !11 = !{i32 2, !"Debug Info Version", i32 3}
70 !12 = !{i32 1, !"wchar_size", i32 4}
71 !13 = !{i32 7, !"uwtable", i32 1}
72 !14 = !{i32 7, !"frame-pointer", i32 2}
73 !15 = !{!"clang version 13.0.0 (https://github.com/llvm/llvm-project.git 305231a4f71b68945b4dd92925c76ff49e377c86)"}
74 !16 = distinct !DISubprogram(name: "foo", scope: !3, file: !3, line: 10, type: !17, scopeLine: 10, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4, annotations: !7)
76 ; CHECK: DW_TAG_subprogram
77 ; CHECK: DW_AT_name ("foo")
78 ; CHECK: DW_TAG_formal_parameter
79 ; CHECK: DW_TAG_LLVM_annotation
80 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
81 ; CHECK-NEXT: DW_AT_const_value ("tag1")
83 ; CHECK-NEXT: DW_TAG_LLVM_annotation
84 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
85 ; CHECK-NEXT: DW_AT_const_value ("tag2")
89 ; CHECK-NEXT: DW_TAG_LLVM_annotation
90 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
91 ; CHECK-NEXT: DW_AT_const_value ("tag1")
93 ; CHECK-NEXT: DW_TAG_LLVM_annotation
94 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
95 ; CHECK-NEXT: DW_AT_const_value ("tag2")
99 !17 = !DISubroutineType(types: !18)
101 !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64)
102 !20 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t1", file: !3, line: 4, size: 32, elements: !21, annotations: !7)
104 !22 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !20, file: !3, line: 5, baseType: !6, size: 32, annotations: !7)
106 ; CHECK: DW_TAG_structure_type
107 ; CHECK-NEXT: DW_AT_name ("t1")
108 ; CHECK: DW_TAG_member
109 ; CHECK-NEXT: DW_AT_name ("a")
110 ; CHECK: DW_TAG_LLVM_annotation
111 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
112 ; CHECK-NEXT: DW_AT_const_value ("tag1")
114 ; CHECK-NEXT: DW_TAG_LLVM_annotation
115 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
116 ; CHECK-NEXT: DW_AT_const_value ("tag2")
120 ; CHECK-NEXT: DW_TAG_LLVM_annotation
121 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
122 ; CHECK-NEXT: DW_AT_const_value ("tag1")
124 ; CHECK-NEXT: DW_TAG_LLVM_annotation
125 ; CHECK-NEXT: DW_AT_name ("btf_decl_tag")
126 ; CHECK-NEXT: DW_AT_const_value ("tag2")
130 !23 = !DILocalVariable(name: "arg", arg: 1, scope: !16, file: !3, line: 10, type: !19, annotations: !7)
131 !24 = !DILocation(line: 10, column: 48, scope: !16)
132 !25 = !DILocation(line: 11, column: 10, scope: !16)
133 !26 = !DILocation(line: 11, column: 15, scope: !16)
134 !27 = !DILocation(line: 11, column: 3, scope: !16)