1; REQUIRES: object-emission
2
3; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
4
5; bool f();
6; inline __attribute__((always_inline)) int f1() {
7;   if (bool b = f())
8;     return 1;
9;   return 2;
10; }
11;
12; inline __attribute__((always_inline)) int f2() {
13; # 2 "y.cc"
14;   if (bool b = f())
15;     return 3;
16;   return 4;
17; }
18;
19; int main() {
20;   f1();
21;   f2();
22; }
23
24; Ensure that lexical_blocks within inlined_subroutines are preserved/emitted.
25; CHECK: DW_TAG_inlined_subroutine
26; CHECK-NOT: DW_TAG
27; CHECK-NOT: NULL
28; CHECK: DW_TAG_lexical_block
29; CHECK-NOT: DW_TAG
30; CHECK-NOT: NULL
31; CHECK: DW_TAG_variable
32; Ensure that file changes don't interfere with creating inlined subroutines.
33; (see the line directive inside 'f2' in thesource)
34; CHECK: DW_TAG_inlined_subroutine
35; CHECK:   DW_TAG_variable
36; CHECK-NOT: DW_TAG
37; CHECK:     DW_AT_abstract_origin
38
39; Function Attrs: uwtable
40define i32 @main() #0 !dbg !4 {
41entry:
42  %retval.i2 = alloca i32, align 4
43  %b.i3 = alloca i8, align 1
44  %retval.i = alloca i32, align 4
45  %b.i = alloca i8, align 1
46  call void @llvm.dbg.declare(metadata i8* %b.i, metadata !16, metadata !DIExpression()), !dbg !19
47  %call.i = call zeroext i1 @_Z1fv(), !dbg !19
48  %frombool.i = zext i1 %call.i to i8, !dbg !19
49  store i8 %frombool.i, i8* %b.i, align 1, !dbg !19
50  %0 = load i8, i8* %b.i, align 1, !dbg !19
51  %tobool.i = trunc i8 %0 to i1, !dbg !19
52  br i1 %tobool.i, label %if.then.i, label %if.end.i, !dbg !19
53
54if.then.i:                                        ; preds = %entry
55  store i32 1, i32* %retval.i, !dbg !21
56  br label %_Z2f1v.exit, !dbg !21
57
58if.end.i:                                         ; preds = %entry
59  store i32 2, i32* %retval.i, !dbg !22
60  br label %_Z2f1v.exit, !dbg !22
61
62_Z2f1v.exit:                                      ; preds = %if.then.i, %if.end.i
63  %1 = load i32, i32* %retval.i, !dbg !23
64  call void @llvm.dbg.declare(metadata i8* %b.i3, metadata !24, metadata !DIExpression()), !dbg !27
65  %call.i4 = call zeroext i1 @_Z1fv(), !dbg !27
66  %frombool.i5 = zext i1 %call.i4 to i8, !dbg !27
67  store i8 %frombool.i5, i8* %b.i3, align 1, !dbg !27
68  %2 = load i8, i8* %b.i3, align 1, !dbg !27
69  %tobool.i6 = trunc i8 %2 to i1, !dbg !27
70  br i1 %tobool.i6, label %if.then.i7, label %if.end.i8, !dbg !27
71
72if.then.i7:                                       ; preds = %_Z2f1v.exit
73  store i32 3, i32* %retval.i2, !dbg !29
74  br label %_Z2f2v.exit, !dbg !29
75
76if.end.i8:                                        ; preds = %_Z2f1v.exit
77  store i32 4, i32* %retval.i2, !dbg !30
78  br label %_Z2f2v.exit, !dbg !30
79
80_Z2f2v.exit:                                      ; preds = %if.then.i7, %if.end.i8
81  %3 = load i32, i32* %retval.i2, !dbg !31
82  ret i32 0, !dbg !32
83}
84
85; Function Attrs: nounwind readnone
86declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
87
88declare zeroext i1 @_Z1fv() #2
89
90attributes #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" }
91attributes #1 = { nounwind readnone }
92attributes #2 = { "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" }
93
94!llvm.dbg.cu = !{!0}
95!llvm.module.flags = !{!13, !14}
96!llvm.ident = !{!15}
97
98!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
99!1 = !DIFile(filename: "inline-scopes.cpp", directory: "/tmp/dbginfo")
100!2 = !{}
101!3 = !{!4, !10, !12}
102!4 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !5, scope: !6, type: !7, variables: !2)
103!5 = !DIFile(filename: "y.cc", directory: "/tmp/dbginfo")
104!6 = !DIFile(filename: "y.cc", directory: "/tmp/dbginfo")
105!7 = !DISubroutineType(types: !8)
106!8 = !{!9}
107!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
108!10 = distinct !DISubprogram(name: "f2", linkageName: "_Z2f2v", line: 8, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 8, file: !1, scope: !11, type: !7, variables: !2)
109!11 = !DIFile(filename: "inline-scopes.cpp", directory: "/tmp/dbginfo")
110!12 = distinct !DISubprogram(name: "f1", linkageName: "_Z2f1v", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !11, type: !7, variables: !2)
111!13 = !{i32 2, !"Dwarf Version", i32 4}
112!14 = !{i32 1, !"Debug Info Version", i32 3}
113!15 = !{!"clang version 3.5.0 "}
114!16 = !DILocalVariable(name: "b", line: 3, scope: !17, file: !11, type: !18)
115!17 = distinct !DILexicalBlock(line: 3, column: 0, file: !1, scope: !12)
116!18 = !DIBasicType(tag: DW_TAG_base_type, name: "bool", size: 8, align: 8, encoding: DW_ATE_boolean)
117!19 = !DILocation(line: 3, scope: !17, inlinedAt: !20)
118!20 = !DILocation(line: 8, scope: !4)
119!21 = !DILocation(line: 4, scope: !17, inlinedAt: !20)
120!22 = !DILocation(line: 5, scope: !12, inlinedAt: !20)
121!23 = !DILocation(line: 6, scope: !12, inlinedAt: !20)
122!24 = !DILocalVariable(name: "b", line: 2, scope: !25, file: !6, type: !18)
123!25 = distinct !DILexicalBlock(line: 2, column: 0, file: !5, scope: !26)
124!26 = !DILexicalBlockFile(discriminator: 0, file: !5, scope: !10)
125!27 = !DILocation(line: 2, scope: !25, inlinedAt: !28)
126!28 = !DILocation(line: 9, scope: !4)
127!29 = !DILocation(line: 3, scope: !25, inlinedAt: !28)
128!30 = !DILocation(line: 4, scope: !26, inlinedAt: !28)
129!31 = !DILocation(line: 5, scope: !26, inlinedAt: !28)
130!32 = !DILocation(line: 10, scope: !4)
131