1 2; RUN: llc -mtriple=x86_64-unknown-unknown -O0 -filetype=obj < %s > %t 3; RUN: llvm-dwarfdump %t | FileCheck %s 4 5; RUN: llc --try-experimental-debuginfo-iterators -mtriple=x86_64-unknown-unknown -O0 -filetype=obj < %s > %t 6; RUN: llvm-dwarfdump %t | FileCheck %s 7 8; IR generated from clang -g with the following source: 9; struct foo { 10; foo(const foo&); 11; int i; 12; }; 13; 14; void func(foo f, foo g) { 15; f.i++; 16; } 17 18; CHECK: debug_info contents 19; CHECK: DW_TAG_subprogram 20; CHECK-NOT: DW_TAG 21; CHECK: DW_AT_linkage_name{{.*}}"_Z4func3fooS_" 22; CHECK-NOT: NULL 23; CHECK: DW_TAG_formal_parameter 24; CHECK-NOT: DW_TAG 25; CHECK: DW_AT_name{{.*}}"f" 26; CHECK-NOT: NULL 27; CHECK: DW_TAG_formal_parameter 28; CHECK-NOT: DW_TAG 29; CHECK: DW_AT_name{{.*}}"g" 30 31%struct.foo = type { i32 } 32 33; Function Attrs: nounwind uwtable 34define void @_Z4func3fooS_(ptr %f, ptr %g) #0 !dbg !4 { 35entry: 36 call void @llvm.dbg.declare(metadata ptr %f, metadata !19, metadata !DIExpression()), !dbg !20 37 call void @llvm.dbg.declare(metadata ptr %g, metadata !21, metadata !DIExpression()), !dbg !20 38 %0 = load i32, ptr %f, align 4, !dbg !22 39 %inc = add nsw i32 %0, 1, !dbg !22 40 store i32 %inc, ptr %f, align 4, !dbg !22 41 ret void, !dbg !23 42} 43 44; Function Attrs: nounwind readnone 45declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 46 47attributes #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" } 48attributes #1 = { nounwind readnone } 49 50!llvm.dbg.cu = !{!0} 51!llvm.module.flags = !{!24} 52 53!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) 54!1 = !DIFile(filename: "scratch.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") 55!2 = !{} 56!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) 57!5 = !DIFile(filename: "scratch.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch") 58!6 = !DISubroutineType(types: !7) 59!7 = !{null, !8, !8} 60!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", line: 1, size: 32, align: 32, file: !1, elements: !9) 61!9 = !{!10, !12} 62!10 = !DIDerivedType(tag: DW_TAG_member, name: "i", line: 3, size: 32, align: 32, file: !1, scope: !8, baseType: !11) 63!11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 64!12 = !DISubprogram(name: "foo", line: 2, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !8, type: !13) 65!13 = !DISubroutineType(types: !14) 66!14 = !{null, !15, !16} 67!15 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !8) 68!16 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !17) 69!17 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8) 70!19 = !DILocalVariable(name: "f", line: 6, arg: 1, scope: !4, file: !5, type: !8) 71!20 = !DILocation(line: 6, scope: !4) 72!21 = !DILocalVariable(name: "g", line: 6, arg: 2, scope: !4, file: !5, type: !8) 73!22 = !DILocation(line: 7, scope: !4) 74!23 = !DILocation(line: 8, scope: !4) 75!24 = !{i32 1, !"Debug Info Version", i32 3} 76