1; REQUIRES: object-emission
2
3; RUN: llc -mtriple=x86_64-linux -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
4
5; From source:
6; struct foo {
7;   int __attribute__((always_inline)) func(int x) { return x + 2; }
8; };
9
10; int i;
11
12; int main() {
13;   return foo().func(i);
14; }
15
16; CHECK: DW_TAG_structure_type
17; CHECK:   DW_TAG_subprogram
18
19; But make sure we emit DW_AT_object_pointer on the abstract definition.
20; CHECK: [[ABSTRACT_ORIGIN:.*]]: DW_TAG_subprogram
21; CHECK-NOT: {{NULL|TAG}}
22; CHECK: DW_AT_specification {{.*}} "_ZN3foo4funcEi"
23; CHECK-NOT: {{NULL|TAG}}
24; CHECK: DW_AT_object_pointer
25
26; Ensure we omit DW_AT_object_pointer on inlined subroutines.
27; CHECK: DW_TAG_inlined_subroutine
28; CHECK-NEXT: DW_AT_abstract_origin {{.*}} {[[ABSTRACT_ORIGIN]]} "_ZN3foo4funcEi"
29; CHECK-NOT: NULL
30; CHECK-NOT: DW_AT_object_pointer
31; CHECK: DW_TAG_formal_parameter
32; CHECK-NOT: DW_AT_artificial
33; CHECK: DW_TAG
34
35%struct.foo = type { i8 }
36
37@i = global i32 0, align 4
38
39; Function Attrs: uwtable
40define i32 @main() #0 {
41entry:
42  %this.addr.i = alloca %struct.foo*, align 8
43  %x.addr.i = alloca i32, align 4
44  %retval = alloca i32, align 4
45  %tmp = alloca %struct.foo, align 1
46  store i32 0, i32* %retval
47  %0 = load i32, i32* @i, align 4, !dbg !23
48  store %struct.foo* %tmp, %struct.foo** %this.addr.i, align 8
49  call void @llvm.dbg.declare(metadata %struct.foo** %this.addr.i, metadata !24, metadata !MDExpression()), !dbg !26
50  store i32 %0, i32* %x.addr.i, align 4
51  call void @llvm.dbg.declare(metadata i32* %x.addr.i, metadata !27, metadata !MDExpression()), !dbg !28
52  %this1.i = load %struct.foo*, %struct.foo** %this.addr.i
53  %1 = load i32, i32* %x.addr.i, align 4, !dbg !28
54  %add.i = add nsw i32 %1, 2, !dbg !28
55  ret i32 %add.i, !dbg !23
56}
57
58; Function Attrs: nounwind readnone
59declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
60
61attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
62attributes #1 = { nounwind readnone }
63
64!llvm.dbg.cu = !{!0}
65!llvm.module.flags = !{!20, !21}
66!llvm.ident = !{!22}
67
68!0 = !MDCompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !3, subprograms: !12, globals: !18, imports: !2)
69!1 = !MDFile(filename: "inline.cpp", directory: "/tmp/dbginfo")
70!2 = !{}
71!3 = !{!4}
72!4 = !MDCompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS3foo")
73!5 = !{!6}
74!6 = !MDSubprogram(name: "func", linkageName: "_ZN3foo4funcEi", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !"_ZTS3foo", type: !7)
75!7 = !MDSubroutineType(types: !8)
76!8 = !{!9, !10, !9}
77!9 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
78!10 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !"_ZTS3foo")
79!12 = !{!13, !17}
80!13 = !MDSubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !14, type: !15, function: i32 ()* @main, variables: !2)
81!14 = !MDFile(filename: "inline.cpp", directory: "/tmp/dbginfo")
82!15 = !MDSubroutineType(types: !16)
83!16 = !{!9}
84!17 = !MDSubprogram(name: "func", linkageName: "_ZN3foo4funcEi", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !"_ZTS3foo", type: !7, declaration: !6, variables: !2)
85!18 = !{!19}
86!19 = !MDGlobalVariable(name: "i", line: 5, isLocal: false, isDefinition: true, scope: null, file: !14, type: !9, variable: i32* @i)
87!20 = !{i32 2, !"Dwarf Version", i32 4}
88!21 = !{i32 1, !"Debug Info Version", i32 3}
89!22 = !{!"clang version 3.5.0 "}
90!23 = !MDLocation(line: 8, scope: !13)
91!24 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !17, type: !25)
92!25 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !"_ZTS3foo")
93!26 = !MDLocation(line: 0, scope: !17, inlinedAt: !23)
94!27 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "x", line: 2, arg: 2, scope: !17, file: !14, type: !9)
95!28 = !MDLocation(line: 2, scope: !17, inlinedAt: !23)
96