1; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -v -debug-info - | FileCheck %s 2 3; Built from source: 4; $ clang++ a.cpp b.cpp -g -c -emit-llvm 5; $ llvm-link a.bc b.bc -o ab.bc 6; $ cat a.cpp 7; # 1 "func.h" 8; inline int func(int i) { 9; return i * 2; 10; } 11; int (*x)(int) = &func; 12; $ cat b.cpp 13; # 1 "func.h" 14; inline int func(int i) { 15; return i * 2; 16; } 17; int (*y)(int) = &func; 18 19; CHECK: DW_TAG_compile_unit 20; CHECK: DW_TAG_subprogram 21; CHECK-NOT: DW_TAG 22; CHECK: DW_AT_name {{.*}} "func" 23; CHECK: DW_TAG_compile_unit 24; CHECK-NOT: DW_TAG_subprogram 25 26source_filename = "test/DebugInfo/Generic/cross-cu-linkonce.ll" 27 28@x = global i32 (i32)* @_Z4funci, align 8, !dbg !0 29@y = global i32 (i32)* @_Z4funci, align 8, !dbg !7 30 31; Function Attrs: inlinehint nounwind uwtable 32define linkonce_odr i32 @_Z4funci(i32 %i) #0 !dbg !19 { 33 %1 = alloca i32, align 4 34 store i32 %i, i32* %1, align 4 35 call void @llvm.dbg.declare(metadata i32* %1, metadata !20, metadata !21), !dbg !22 36 %2 = load i32, i32* %1, align 4, !dbg !23 37 %3 = mul nsw i32 %2, 2, !dbg !23 38 ret i32 %3, !dbg !23 39} 40 41; Function Attrs: nounwind readnone 42declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 43 44attributes #0 = { inlinehint nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 45attributes #1 = { nounwind readnone } 46 47!llvm.dbg.cu = !{!9, !13} 48!llvm.module.flags = !{!16, !17} 49!llvm.ident = !{!18, !18} 50 51!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 52!1 = !DIGlobalVariable(name: "x", scope: null, file: !2, line: 4, type: !3, isLocal: false, isDefinition: true) 53!2 = !DIFile(filename: "func.h", directory: "/tmp/dbginfo") 54!3 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64) 55!4 = !DISubroutineType(types: !5) 56!5 = !{!6, !6} 57!6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 58!7 = !DIGlobalVariableExpression(var: !8, expr: !DIExpression()) 59!8 = !DIGlobalVariable(name: "y", scope: null, file: !2, line: 4, type: !3, isLocal: false, isDefinition: true) 60!9 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !10, producer: "clang version 3.5.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !11, retainedTypes: !11, globals: !12, imports: !11) 61!10 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo") 62!11 = !{} 63!12 = !{!0} 64!13 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !14, producer: "clang version 3.5.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !11, retainedTypes: !11, globals: !15, imports: !11) 65!14 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo") 66!15 = !{!7} 67!16 = !{i32 2, !"Dwarf Version", i32 4} 68!17 = !{i32 1, !"Debug Info Version", i32 3} 69!18 = !{!"clang version 3.5.0 "} 70!19 = distinct !DISubprogram(name: "func", linkageName: "_Z4funci", scope: !2, file: !2, line: 1, type: !4, isLocal: false, isDefinition: true, scopeLine: 1, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !9, retainedNodes: !11) 71!20 = !DILocalVariable(name: "i", arg: 1, scope: !19, file: !2, line: 1, type: !6) 72!21 = !DIExpression() 73!22 = !DILocation(line: 1, scope: !19) 74!23 = !DILocation(line: 2, scope: !19) 75 76