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1; RUN: llc -O0 %s -o - -filetype=obj \
2; RUN:   | llvm-dwarfdump -statistics - | FileCheck %s
3
4; Test that abstract origins in multiple CUs are uniqued.
5
6; CHECK:      "#functions": 4,
7; CHECK:      "#inlined functions": 2,
8; CHECK:      "#unique source variables": 4,
9; CHECK-NEXT: "#source variables": 6,
10; CHECK-NEXT: "#source variables with location": 6,
11
12;header.h:
13;extern "C" int getchar();
14;template<typename T> T __attribute__((always_inline)) inlined() {
15;  if (getchar()=='a') {
16;    int i = getchar();
17;    return i;
18;  } else {
19;    int i = 'a';
20;    return i;
21;  }
22;}
23;b.cpp:
24;#include <header.h>
25;int b() {
26;  int b = inlined<int>();
27;  return b+1;
28;}
29;a.cpp
30;#include <header.h>
31;int b();
32;int a() {
33;  int a = inlined<int>();
34;  return a+1;
35;}
36;
37;int main() {
38;  return a() + b();
39;}
40
41; ModuleID = 'linked.ll'
42source_filename = "llvm-link"
43target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
44target triple = "x86_64-apple-macosx10.14.0"
45
46; Function Attrs: noinline optnone ssp uwtable
47define i32 @_Z1av() #0 !dbg !10 {
48entry:
49  %retval.i = alloca i32, align 4
50  %i.i = alloca i32, align 4
51  call void @llvm.dbg.declare(metadata i32* %i.i, metadata !14, metadata !DIExpression()), !dbg !21
52  %i2.i = alloca i32, align 4
53  call void @llvm.dbg.declare(metadata i32* %i2.i, metadata !23, metadata !DIExpression()), !dbg !25
54  %a = alloca i32, align 4
55  call void @llvm.dbg.declare(metadata i32* %a, metadata !26, metadata !DIExpression()), !dbg !27
56  %call.i = call i32 @getchar(), !dbg !28
57  %cmp.i = icmp eq i32 %call.i, 97, !dbg !28
58  br i1 %cmp.i, label %if.then.i, label %if.else.i, !dbg !29
59
60if.then.i:                                        ; preds = %entry
61  %call1.i = call i32 @getchar(), !dbg !21
62  store i32 %call1.i, i32* %i.i, align 4, !dbg !21
63  %0 = load i32, i32* %i.i, align 4, !dbg !30
64  store i32 %0, i32* %retval.i, align 4, !dbg !30
65  br label %_Z7inlinedIiET_v.exit, !dbg !30
66
67if.else.i:                                        ; preds = %entry
68  store i32 97, i32* %i2.i, align 4, !dbg !25
69  %1 = load i32, i32* %i2.i, align 4, !dbg !31
70  store i32 %1, i32* %retval.i, align 4, !dbg !31
71  br label %_Z7inlinedIiET_v.exit, !dbg !31
72
73_Z7inlinedIiET_v.exit:                            ; preds = %if.else.i, %if.then.i
74  %2 = load i32, i32* %retval.i, align 4, !dbg !32
75  store i32 %2, i32* %a, align 4, !dbg !27
76  %3 = load i32, i32* %a, align 4, !dbg !33
77  %add = add nsw i32 %3, 1, !dbg !33
78  ret i32 %add, !dbg !33
79}
80
81; Function Attrs: nounwind readnone speculatable
82declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
83
84declare i32 @getchar()
85
86; Function Attrs: noinline norecurse optnone ssp uwtable
87define i32 @main() #3 !dbg !34 {
88entry:
89  %retval = alloca i32, align 4
90  store i32 0, i32* %retval, align 4
91  %call = call i32 @_Z1av(), !dbg !35
92  %call1 = call i32 @_Z1bv(), !dbg !35
93  %add = add nsw i32 %call, %call1, !dbg !35
94  ret i32 %add, !dbg !35
95}
96
97; Function Attrs: noinline optnone ssp uwtable
98define i32 @_Z1bv() #0 !dbg !36 {
99entry:
100  %retval.i = alloca i32, align 4
101  %i.i = alloca i32, align 4
102  call void @llvm.dbg.declare(metadata i32* %i.i, metadata !37, metadata !DIExpression()), !dbg !41
103  %i2.i = alloca i32, align 4
104  call void @llvm.dbg.declare(metadata i32* %i2.i, metadata !43, metadata !DIExpression()), !dbg !45
105  %b = alloca i32, align 4
106  call void @llvm.dbg.declare(metadata i32* %b, metadata !46, metadata !DIExpression()), !dbg !47
107  %call.i = call i32 @getchar(), !dbg !48
108  %cmp.i = icmp eq i32 %call.i, 97, !dbg !48
109  br i1 %cmp.i, label %if.then.i, label %if.else.i, !dbg !49
110
111if.then.i:                                        ; preds = %entry
112  %call1.i = call i32 @getchar(), !dbg !41
113  store i32 %call1.i, i32* %i.i, align 4, !dbg !41
114  %0 = load i32, i32* %i.i, align 4, !dbg !50
115  store i32 %0, i32* %retval.i, align 4, !dbg !50
116  br label %_Z7inlinedIiET_v.exit, !dbg !50
117
118if.else.i:                                        ; preds = %entry
119  store i32 97, i32* %i2.i, align 4, !dbg !45
120  %1 = load i32, i32* %i2.i, align 4, !dbg !51
121  store i32 %1, i32* %retval.i, align 4, !dbg !51
122  br label %_Z7inlinedIiET_v.exit, !dbg !51
123
124_Z7inlinedIiET_v.exit:                            ; preds = %if.else.i, %if.then.i
125  %2 = load i32, i32* %retval.i, align 4, !dbg !52
126  store i32 %2, i32* %b, align 4, !dbg !47
127  %3 = load i32, i32* %b, align 4, !dbg !53
128  %add = add nsw i32 %3, 1, !dbg !53
129  ret i32 %add, !dbg !53
130}
131
132attributes #0 = { noinline optnone ssp uwtable }
133attributes #1 = { nounwind readnone speculatable }
134attributes #3 = { noinline norecurse optnone ssp uwtable }
135
136!llvm.dbg.cu = !{!0, !3}
137!llvm.ident = !{!5, !5}
138!llvm.module.flags = !{!6, !7, !8, !9}
139
140!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 8.0.0 (trunk 340541) (llvm/trunk 340540)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
141!1 = !DIFile(filename: "a.cpp", directory: "/tmp")
142!2 = !{}
143!3 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !4, producer: "clang version 8.0.0 (trunk 340541) (llvm/trunk 340540)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
144!4 = !DIFile(filename: "b.cpp", directory: "/tmp")
145!5 = !{!"clang version 8.0.0 (trunk 340541) (llvm/trunk 340540)"}
146!6 = !{i32 2, !"Dwarf Version", i32 4}
147!7 = !{i32 2, !"Debug Info Version", i32 3}
148!8 = !{i32 1, !"wchar_size", i32 4}
149!9 = !{i32 7, !"PIC Level", i32 2}
150!10 = distinct !DISubprogram(name: "a", linkageName: "_Z1av", scope: !1, file: !1, line: 3, type: !11, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
151!11 = !DISubroutineType(types: !12)
152!12 = !{!13}
153!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
154!14 = !DILocalVariable(name: "i", scope: !15, file: !16, line: 4, type: !13)
155!15 = distinct !DILexicalBlock(scope: !17, file: !16, line: 3)
156!16 = !DIFile(filename: "./header.h", directory: "/tmp")
157!17 = distinct !DILexicalBlock(scope: !18, file: !16, line: 3)
158!18 = distinct !DISubprogram(name: "inlined<int>", linkageName: "_Z7inlinedIiET_v", scope: !16, file: !16, line: 2, type: !11, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, templateParams: !19, retainedNodes: !2)
159!19 = !{!20}
160!20 = !DITemplateTypeParameter(name: "T", type: !13)
161!21 = !DILocation(line: 4, scope: !15, inlinedAt: !22)
162!22 = distinct !DILocation(line: 4, scope: !10)
163!23 = !DILocalVariable(name: "i", scope: !24, file: !16, line: 7, type: !13)
164!24 = distinct !DILexicalBlock(scope: !17, file: !16, line: 6)
165!25 = !DILocation(line: 7, scope: !24, inlinedAt: !22)
166!26 = !DILocalVariable(name: "a", scope: !10, file: !1, line: 4, type: !13)
167!27 = !DILocation(line: 4, scope: !10)
168!28 = !DILocation(line: 3, scope: !17, inlinedAt: !22)
169!29 = !DILocation(line: 3, scope: !18, inlinedAt: !22)
170!30 = !DILocation(line: 5, scope: !15, inlinedAt: !22)
171!31 = !DILocation(line: 8, scope: !24, inlinedAt: !22)
172!32 = !DILocation(line: 10, scope: !18, inlinedAt: !22)
173!33 = !DILocation(line: 5, scope: !10)
174!34 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 12, type: !11, isLocal: false, isDefinition: true, scopeLine: 12, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
175!35 = !DILocation(line: 13, scope: !34)
176!36 = distinct !DISubprogram(name: "b", linkageName: "_Z1bv", scope: !4, file: !4, line: 2, type: !11, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !3, retainedNodes: !2)
177!37 = !DILocalVariable(name: "i", scope: !38, file: !16, line: 4, type: !13)
178!38 = distinct !DILexicalBlock(scope: !39, file: !16, line: 3)
179!39 = distinct !DILexicalBlock(scope: !40, file: !16, line: 3)
180!40 = distinct !DISubprogram(name: "inlined<int>", linkageName: "_Z7inlinedIiET_v", scope: !16, file: !16, line: 2, type: !11, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !3, templateParams: !19, retainedNodes: !2)
181!41 = !DILocation(line: 4, scope: !38, inlinedAt: !42)
182!42 = distinct !DILocation(line: 3, scope: !36)
183!43 = !DILocalVariable(name: "i", scope: !44, file: !16, line: 7, type: !13)
184!44 = distinct !DILexicalBlock(scope: !39, file: !16, line: 6)
185!45 = !DILocation(line: 7, scope: !44, inlinedAt: !42)
186!46 = !DILocalVariable(name: "b", scope: !36, file: !4, line: 3, type: !13)
187!47 = !DILocation(line: 3, scope: !36)
188!48 = !DILocation(line: 3, scope: !39, inlinedAt: !42)
189!49 = !DILocation(line: 3, scope: !40, inlinedAt: !42)
190!50 = !DILocation(line: 5, scope: !38, inlinedAt: !42)
191!51 = !DILocation(line: 8, scope: !44, inlinedAt: !42)
192!52 = !DILocation(line: 10, scope: !40, inlinedAt: !42)
193!53 = !DILocation(line: 4, scope: !36)
194