; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj ; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s ; test that the DW_AT_specification is a back edge in the file. ; CHECK: 0x0000005c: DW_TAG_subprogram [5] ; CHECK: 0x0000007c: DW_AT_specification [DW_FORM_ref4] (cu + 0x005c => {0x0000005c}) %struct.foo = type { i8 } define void @_Z3zedP3foo(%struct.foo* %x) uwtable { entry: %x.addr = alloca %struct.foo*, align 8 store %struct.foo* %x, %struct.foo** %x.addr, align 8 call void @llvm.dbg.declare(metadata !{%struct.foo** %x.addr}, metadata !23), !dbg !24 %0 = load %struct.foo** %x.addr, align 8, !dbg !25 call void @_ZN3foo3barEv(%struct.foo* %0), !dbg !25 ret void, !dbg !27 } declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone define linkonce_odr void @_ZN3foo3barEv(%struct.foo* %this) nounwind uwtable align 2 { entry: %this.addr = alloca %struct.foo*, align 8 store %struct.foo* %this, %struct.foo** %this.addr, align 8 call void @llvm.dbg.declare(metadata !{%struct.foo** %this.addr}, metadata !28), !dbg !29 %this1 = load %struct.foo** %this.addr ret void, !dbg !30 } !llvm.dbg.cu = !{!0} !0 = metadata !{i32 786449, metadata !32, i32 4, metadata !"clang version 3.0 ()", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1, metadata !""} ; [ DW_TAG_compile_unit ] !1 = metadata !{i32 0} !3 = metadata !{metadata !5, metadata !20} !5 = metadata !{i32 720942, metadata !6, metadata !6, metadata !"zed", metadata !"zed", metadata !"_Z3zedP3foo", i32 4, metadata !7, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 false, void (%struct.foo*)* @_Z3zedP3foo, null, null, metadata !18, i32 4} ; [ DW_TAG_subprogram ] !6 = metadata !{i32 720937, metadata !32} ; [ DW_TAG_file_type ] !7 = metadata !{i32 720917, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !8, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] !8 = metadata !{null, metadata !9} !9 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !10} ; [ DW_TAG_pointer_type ] !10 = metadata !{i32 720898, metadata !32, null, metadata !"foo", i32 1, i64 8, i64 8, i32 0, i32 0, null, metadata !11, i32 0, null, null} ; [ DW_TAG_class_type ] !11 = metadata !{metadata !12} !12 = metadata !{i32 720942, metadata !6, metadata !10, metadata !"bar", metadata !"bar", metadata !"_ZN3foo3barEv", i32 2, metadata !13, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 false, null, null, i32 0, metadata !16, i32 2} ; [ DW_TAG_subprogram ] !13 = metadata !{i32 720917, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !14, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] !14 = metadata !{null, metadata !15} !15 = metadata !{i32 786447, i32 0, metadata !"", i32 0, i32 0, i64 64, i64 64, i64 0, i32 64, metadata !10} ; [ DW_TAG_pointer_type ] !16 = metadata !{metadata !17} !17 = metadata !{i32 720932} ; [ DW_TAG_base_type ] !18 = metadata !{metadata !19} !19 = metadata !{i32 720932} ; [ DW_TAG_base_type ] !20 = metadata !{i32 720942, metadata !6, null, metadata !"bar", metadata !"bar", metadata !"_ZN3foo3barEv", i32 2, metadata !13, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 false, void (%struct.foo*)* @_ZN3foo3barEv, null, metadata !12, metadata !21, i32 2} ; [ DW_TAG_subprogram ] !21 = metadata !{metadata !22} !22 = metadata !{i32 720932} ; [ DW_TAG_base_type ] !23 = metadata !{i32 786689, metadata !5, metadata !"x", metadata !6, i32 16777220, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] !24 = metadata !{i32 4, i32 15, metadata !5, null} !25 = metadata !{i32 4, i32 20, metadata !26, null} !26 = metadata !{i32 786443, metadata !5, i32 4, i32 18, metadata !6, i32 0} ; [ DW_TAG_lexical_block ] !27 = metadata !{i32 4, i32 30, metadata !26, null} !28 = metadata !{i32 786689, metadata !20, metadata !"this", metadata !6, i32 16777218, metadata !15, i32 64, i32 0} ; [ DW_TAG_arg_variable ] !29 = metadata !{i32 2, i32 8, metadata !20, null} !30 = metadata !{i32 2, i32 15, metadata !31, null} !31 = metadata !{i32 786443, metadata !20, i32 2, i32 14, metadata !6, i32 1} ; [ DW_TAG_lexical_block ] !32 = metadata !{metadata !"/home/espindola/llvm/test.cc", metadata !"/home/espindola/tmpfs/build"}