1; Do setup work for all below tests: generate bitcode and combined index
2; RUN: opt -module-summary %s -o %t.bc
3; RUN: opt -module-summary %p/Inputs/thinlto_funcimport_debug.ll -o %t2.bc
4; RUN: llvm-lto -thinlto -o %t3 %t.bc %t2.bc
5
6; If we import func1 and not func2 we should only link DISubprogram for func1
7; RUN: llvm-link %t2.bc -summary-index=%t3.thinlto.bc -import=func1:%t.bc -S | FileCheck %s
8
9; CHECK: declare i32 @func2
10; CHECK: define available_externally i32 @func1
11
12; Ensure that each subprogram points to the correct CU.
13; CHECK: ![[CU1:[0-9]+]] = distinct !DICompileUnit(
14; CHECK: ![[CU2:[0-9]+]] = distinct !DICompileUnit(
15
16; CHECK: distinct !DISubprogram(name: "main", {{.*}}, unit: ![[CU1]]
17; CHECK: distinct !DISubprogram(name: "func1", {{.*}}, unit: ![[CU2]]
18; CHECK-NOT: distinct !DISubprogram(name: "func2"
19; CHECK: distinct !DISubprogram(name: "func3", {{.*}}, unit: ![[CU2]]
20; CHECK: distinct !DISubprogram(name: "func4", {{.*}}, unit: ![[CU2]]
21
22
23; ModuleID = 'dbg.o'
24target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
25target triple = "x86_64-unknown-linux-gnu"
26
27; Function Attrs: nounwind readnone uwtable
28define i32 @func1(i32 %n) #0 !dbg !4 {
29entry:
30  tail call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !9, metadata !17), !dbg !18
31  tail call void @llvm.dbg.value(metadata i32 5, i64 0, metadata !10, metadata !17), !dbg !19
32  %cmp = icmp sgt i32 %n, 10, !dbg !20
33  %. = select i1 %cmp, i32 10, i32 5, !dbg !22
34  tail call void @llvm.dbg.value(metadata i32 %., i64 0, metadata !10, metadata !17), !dbg !19
35  ret i32 %., !dbg !23
36}
37
38; Function Attrs: nounwind readnone uwtable
39define i32 @func2(i32 %n) #0 !dbg !11 {
40entry:
41  tail call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !13, metadata !17), !dbg !24
42  ret i32 %n, !dbg !25
43}
44
45; Function Attrs: nounwind readnone
46declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
47
48attributes #0 = { nounwind readnone uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
49attributes #1 = { nounwind readnone }
50
51!llvm.dbg.cu = !{!0}
52!llvm.module.flags = !{!14, !15}
53!llvm.ident = !{!16}
54
55!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
56!1 = !DIFile(filename: "dbg.c", directory: ".")
57!2 = !{}
58!4 = distinct !DISubprogram(name: "func1", scope: !1, file: !1, line: 1, type: !5, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !8)
59!5 = !DISubroutineType(types: !6)
60!6 = !{!7, !7}
61!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
62!8 = !{!9, !10}
63!9 = !DILocalVariable(name: "n", arg: 1, scope: !4, file: !1, line: 1, type: !7)
64!10 = !DILocalVariable(name: "x", scope: !4, file: !1, line: 2, type: !7)
65!11 = distinct !DISubprogram(name: "func2", scope: !1, file: !1, line: 8, type: !5, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !12)
66!12 = !{!13}
67!13 = !DILocalVariable(name: "n", arg: 1, scope: !11, file: !1, line: 8, type: !7)
68!14 = !{i32 2, !"Dwarf Version", i32 4}
69!15 = !{i32 2, !"Debug Info Version", i32 3}
70!16 = !{!"clang version 3.8.0 (trunk 251407) (llvm/trunk 251401)"}
71!17 = !DIExpression()
72!18 = !DILocation(line: 1, column: 15, scope: !4)
73!19 = !DILocation(line: 2, column: 7, scope: !4)
74!20 = !DILocation(line: 3, column: 9, scope: !21, inlinedAt: !26)
75!21 = distinct !DILexicalBlock(scope: !27, file: !1, line: 3, column: 7)
76!22 = !DILocation(line: 3, column: 7, scope: !4)
77!23 = !DILocation(line: 5, column: 3, scope: !4)
78!24 = !DILocation(line: 8, column: 15, scope: !11)
79!25 = !DILocation(line: 9, column: 3, scope: !11)
80!26 = !DILocation(line: 9, column: 3, scope: !4)
81!27 = distinct !DISubprogram(name: "func3", scope: !1, file: !1, line: 8, type: !5, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !28)
82!28 = !{!29}
83!29 = !DILocalVariable(name: "n", arg: 1, scope: !30, file: !1, line: 8, type: !7)
84!30 = distinct !DISubprogram(name: "func4", scope: !1, file: !1, line: 8, type: !5, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !31)
85!31 = !{!32}
86!32 = !DILocalVariable(name: "n", arg: 1, scope: !30, file: !1, line: 8, type: !7)
87
88