1; RUN: llc -filetype=obj < %s | llvm-dwarfdump -debug-info - | FileCheck %s 2 3; Generated by clang++ -S -c -std=c++11 --emit-llvm -g from the following C++11 source: 4;class foo { 5;[[noreturn]] void foo_member(){throw 1;} 6;}; 7; 8;[[ noreturn ]] void f() { 9; throw 1; 10;} 11; 12;void func(){ 13; foo object; 14;} 15 16; CHECK: DW_TAG_subprogram 17; CHECK-NOT: DW_TAG 18; CHECK: DW_AT_name{{.*}}"f" 19; CHECK-NOT: DW_TAG 20; CHECK: DW_AT_noreturn 21; CHECK: DW_TAG_class_type 22; CHECK: DW_TAG_subprogram 23; CHECK: DW_AT_name{{.*}}"foo_member" 24; CHECK: DW_AT_noreturn 25; ModuleID = 'test.cpp' 26 27source_filename = "noreturn1.cpp" 28target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 29target triple = "x86_64-unknown-linux-gnu" 30 31%class.foo = type { i8 } 32 33@_ZTIi = external dso_local constant i8* 34 35; Function Attrs: noinline noreturn optnone uwtable 36define dso_local void @_Z1fv() #0 !dbg !7 { 37 %1 = call i8* @__cxa_allocate_exception(i64 4) #3, !dbg !10 38 %2 = bitcast i8* %1 to i32*, !dbg !10 39 store i32 1, i32* %2, align 16, !dbg !10 40 call void @__cxa_throw(i8* %1, i8* bitcast (i8** @_ZTIi to i8*), i8* null) #4, !dbg !10 41 unreachable, !dbg !10 42} 43 44declare dso_local i8* @__cxa_allocate_exception(i64) 45 46declare dso_local void @__cxa_throw(i8*, i8*, i8*) 47 48; Function Attrs: noinline nounwind optnone uwtable 49define dso_local void @_Z4funcv() #1 !dbg !11 { 50 %1 = alloca %class.foo, align 1 51 call void @llvm.dbg.declare(metadata %class.foo* %1, metadata !12, metadata !DIExpression()), !dbg !19 52 ret void, !dbg !20 53} 54 55; Function Attrs: nounwind readnone speculatable willreturn 56declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 57 58attributes #0 = { noinline noreturn optnone uwtable } 59attributes #1 = { noinline nounwind optnone uwtable } 60attributes #2 = { nounwind readnone speculatable willreturn } 61attributes #3 = { nounwind } 62attributes #4 = { noreturn } 63 64!llvm.dbg.cu = !{!0} 65!llvm.module.flags = !{!3, !4, !5} 66!llvm.ident = !{!6} 67 68!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_11, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 3fcdd25ad5566114ac3322dcbf71d3c38bfec1ed)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) 69!1 = !DIFile(filename: "test.cpp", directory: "/home/sourabh/work/dwarf/c_c++/c++11") 70!2 = !{} 71!3 = !{i32 2, !"Dwarf Version", i32 4} 72!4 = !{i32 2, !"Debug Info Version", i32 3} 73!5 = !{i32 1, !"wchar_size", i32 4} 74!6 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 3fcdd25ad5566114ac3322dcbf71d3c38bfec1ed)"} 75!7 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", scope: !1, file: !1, line: 5, type: !8, scopeLine: 5, flags: DIFlagPrototyped | DIFlagNoReturn, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) 76!8 = !DISubroutineType(types: !9) 77!9 = !{null} 78!10 = !DILocation(line: 6, column: 5, scope: !7) 79!11 = distinct !DISubprogram(name: "func", linkageName: "_Z4funcv", scope: !1, file: !1, line: 9, type: !8, scopeLine: 9, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) 80!12 = !DILocalVariable(name: "object", scope: !11, file: !1, line: 10, type: !13) 81!13 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "foo", file: !1, line: 1, size: 8, flags: DIFlagTypePassByValue, elements: !14, identifier: "_ZTS3foo") 82!14 = !{!15} 83!15 = !DISubprogram(name: "foo_member", linkageName: "_ZN3foo10foo_memberEv", scope: !13, file: !1, line: 2, type: !16, scopeLine: 2, flags: DIFlagPrototyped | DIFlagNoReturn, spFlags: 0) 84!16 = !DISubroutineType(types: !17) 85!17 = !{null, !18} 86!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 87!19 = !DILocation(line: 10, column: 9, scope: !11) 88!20 = !DILocation(line: 11, column: 1, scope: !11) 89