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