1 ; REQUIRES: object-emission 2 3 ; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -v -debug-info - | FileCheck %s 4 5 ; Built from source: 6 ; $ clang++ a.cpp b.cpp -g -c -emit-llvm 7 ; $ llvm-link a.bc b.bc -o ab.bc 8 ; $ cat a.cpp 9 ; # 1 "func.h" 10 ; inline int func(int i) { 11 ; return i * 2; 12 ; } 13 ; int (*x)(int) = &func; 14 ; $ cat b.cpp 15 ; # 1 "func.h" 16 ; inline int func(int i) { 17 ; return i * 2; 18 ; } 19 ; int (*y)(int) = &func; 20 21 ; CHECK: DW_TAG_compile_unit 22 ; CHECK: DW_TAG_subprogram 23 ; CHECK-NOT: DW_TAG 24 ; CHECK: DW_AT_name {{.*}} "func" 25 ; CHECK: DW_TAG_compile_unit 26 ; CHECK-NOT: DW_TAG_subprogram 27 28 source_filename = "test/DebugInfo/Generic/cross-cu-linkonce.ll" 29 30 @x = global i32 (i32)* @_Z4funci, align 8, !dbg !0 31 @y = global i32 (i32)* @_Z4funci, align 8, !dbg !7 32 33 ; Function Attrs: inlinehint nounwind uwtable 34 define linkonce_odr i32 @_Z4funci(i32 %i) #0 !dbg !19 { 35 %1 = alloca i32, align 4 36 store i32 %i, i32* %1, align 4 37 call void @llvm.dbg.declare(metadata i32* %1, metadata !20, metadata !21), !dbg !22 38 %2 = load i32, i32* %1, align 4, !dbg !23 39 %3 = mul nsw i32 %2, 2, !dbg !23 40 ret i32 %3, !dbg !23 41 } 42 43 ; Function Attrs: nounwind readnone 44 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 45 46 attributes #0 = { inlinehint nounwind 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" } 47 attributes #1 = { nounwind readnone } 48 49 !llvm.dbg.cu = !{!9, !13} 50 !llvm.module.flags = !{!16, !17} 51 !llvm.ident = !{!18, !18} 52 53 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 54 !1 = !DIGlobalVariable(name: "x", scope: null, file: !2, line: 4, type: !3, isLocal: false, isDefinition: true) 55 !2 = !DIFile(filename: "func.h", directory: "/tmp/dbginfo") 56 !3 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64) 57 !4 = !DISubroutineType(types: !5) 58 !5 = !{!6, !6} 59 !6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 60 !7 = !DIGlobalVariableExpression(var: !8, expr: !DIExpression()) 61 !8 = !DIGlobalVariable(name: "y", scope: null, file: !2, line: 4, type: !3, isLocal: false, isDefinition: true) 62 !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) 63 !10 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo") 64 !11 = !{} 65 !12 = !{!0} 66 !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) 67 !14 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo") 68 !15 = !{!7} 69 !16 = !{i32 2, !"Dwarf Version", i32 4} 70 !17 = !{i32 1, !"Debug Info Version", i32 3} 71 !18 = !{!"clang version 3.5.0 "} 72 !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) 73 !20 = !DILocalVariable(name: "i", arg: 1, scope: !19, file: !2, line: 1, type: !6) 74 !21 = !DIExpression() 75 !22 = !DILocation(line: 1, scope: !19) 76 !23 = !DILocation(line: 2, scope: !19) 77 78
