1 2; RUN: llc -mtriple=x86_64-unknown-unknown -O0 -filetype=obj < %s > %t 3; RUN: llvm-dwarfdump %t | FileCheck %s 4 5; IR generated from clang -g with the following source: 6; struct foo { 7; foo(const foo&); 8; int i; 9; }; 10; 11; void func(foo f, foo g) { 12; f.i++; 13; } 14 15; CHECK: debug_info contents 16; CHECK: DW_TAG_subprogram 17; CHECK-NOT: DW_TAG 18; CHECK: DW_AT_linkage_name{{.*}}"_Z4func3fooS_" 19; CHECK-NOT: NULL 20; CHECK: DW_TAG_formal_parameter 21; CHECK-NOT: DW_TAG 22; CHECK: DW_AT_name{{.*}}"f" 23; CHECK-NOT: NULL 24; CHECK: DW_TAG_formal_parameter 25; CHECK-NOT: DW_TAG 26; CHECK: DW_AT_name{{.*}}"g" 27 28%struct.foo = type { i32 } 29 30; Function Attrs: nounwind uwtable 31define void @_Z4func3fooS_(%struct.foo* %f, %struct.foo* %g) #0 !dbg !4 { 32entry: 33 call void @llvm.dbg.declare(metadata %struct.foo* %f, metadata !19, metadata !DIExpression()), !dbg !20 34 call void @llvm.dbg.declare(metadata %struct.foo* %g, metadata !21, metadata !DIExpression()), !dbg !20 35 %i = getelementptr inbounds %struct.foo, %struct.foo* %f, i32 0, i32 0, !dbg !22 36 %0 = load i32, i32* %i, align 4, !dbg !22 37 %inc = add nsw i32 %0, 1, !dbg !22 38 store i32 %inc, i32* %i, align 4, !dbg !22 39 ret void, !dbg !23 40} 41 42; Function Attrs: nounwind readnone 43declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 44 45attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" } 46attributes #1 = { nounwind readnone } 47 48!llvm.dbg.cu = !{!0} 49!llvm.module.flags = !{!24} 50 51!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.4 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 52!1 = !DIFile(filename: "scratch.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") 53!2 = !{} 54!4 = distinct !DISubprogram(name: "func", linkageName: "_Z4func3fooS_", line: 6, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !6, retainedNodes: !2) 55!5 = !DIFile(filename: "scratch.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") 56!6 = !DISubroutineType(types: !7) 57!7 = !{null, !8, !8} 58!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 32, align: 32, file: !1, elements: !9) 59!9 = !{!10, !12} 60!10 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 3, size: 32, align: 32, file: !1, scope: !8, baseType: !11) 61!11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 62!12 = !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !8, type: !13) 63!13 = !DISubroutineType(types: !14) 64!14 = !{null, !15, !16} 65!15 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8) 66!16 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !17) 67!17 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8) 68!19 = !DILocalVariable(name: "f", line: 6, arg: 1, scope: !4, file: !5, type: !8) 69!20 = !DILocation(line: 6, scope: !4) 70!21 = !DILocalVariable(name: "g", line: 6, arg: 2, scope: !4, file: !5, type: !8) 71!22 = !DILocation(line: 7, scope: !4) 72!23 = !DILocation(line: 8, scope: !4) 73!24 = !{i32 1, !"Debug Info Version", i32 3} 74