; RUN: llc -mtriple=x86_64-apple-macosx %s -o %t -filetype=obj
; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
;
; struct A {
;   A(int i);
;   ~A();
; };
;
; A::~A() {}
;
; void foo() {
;   A a(1);
; }
;
; rdar://problem/16362674
;
; Test that we do not emit a linkage name for the declaration of a destructor.
; Test that we do emit a linkage name for a specific instance of it.

; CHECK: DW_TAG_subprogram
; CHECK: DW_TAG_subprogram
; CHECK: DW_AT_name {{.*}} "~A"
; CHECK-NOT: DW_AT_MIPS_linkage_name
; CHECK: DW_TAG_subprogram
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_MIPS_linkage_name {{.*}} "_ZN1AD2Ev"
; CHECK-NOT: DW_TAG
; CHECK: DW_AT_specification {{.*}} "~A"


target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.9.0"

%struct.A = type { i8 }

; Function Attrs: nounwind ssp uwtable
define void @_ZN1AD2Ev(%struct.A* %this) unnamed_addr #0 align 2 {
entry:
  %this.addr = alloca %struct.A*, align 8
  store %struct.A* %this, %struct.A** %this.addr, align 8
  call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !26, metadata !{!"0x102"}), !dbg !28
  %this1 = load %struct.A** %this.addr
  ret void, !dbg !29
}

; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1

; Function Attrs: nounwind ssp uwtable
define void @_ZN1AD1Ev(%struct.A* %this) unnamed_addr #0 align 2 {
entry:
  %this.addr = alloca %struct.A*, align 8
  store %struct.A* %this, %struct.A** %this.addr, align 8
  call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !30, metadata !{!"0x102"}), !dbg !31
  %this1 = load %struct.A** %this.addr
  call void @_ZN1AD2Ev(%struct.A* %this1), !dbg !32
  ret void, !dbg !33
}

; Function Attrs: ssp uwtable
define void @_Z3foov() #2 {
entry:
  %a = alloca %struct.A, align 1
  call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !34, metadata !{!"0x102"}), !dbg !35
  call void @_ZN1AC1Ei(%struct.A* %a, i32 1), !dbg !35
  call void @_ZN1AD1Ev(%struct.A* %a), !dbg !36
  ret void, !dbg !36
}

declare void @_ZN1AC1Ei(%struct.A*, i32)

attributes #0 = { nounwind ssp uwtable }
attributes #1 = { nounwind readnone }
attributes #2 = { ssp uwtable }

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!23, !24}
!llvm.ident = !{!25}

!0 = !{!"0x11\004\00clang version 3.5.0 \000\00\000\00\001", !1, !2, !3, !16, !2, !2} ; [ DW_TAG_compile_unit ] [linkage-name.cpp] [DW_LANG_C_plus_plus]
!1 = !{!"linkage-name.cpp", !""}
!2 = !{}
!3 = !{!4}
!4 = !{!"0x13\00A\001\008\008\000\000\000", !1, null, null, !5, null, null, !"_ZTS1A"} ; [ DW_TAG_structure_type ] [A] [line 1, size 8, align 8, offset 0] [def] [from ]
!5 = !{!6, !12}
!6 = !{!"0x2e\00A\00A\00\002\000\000\000\006\00256\000\002", !1, !"_ZTS1A", !7, null, null, null, i32 0, !11} ; [ DW_TAG_subprogram ] [line 2] [A]
!7 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = !{null, !9, !10}
!9 = !{!"0xf\00\000\0064\0064\000\001088", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
!10 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!11 = !{i32 786468}
!12 = !{!"0x2e\00~A\00~A\00\003\000\000\000\006\00256\000\003", !1, !"_ZTS1A", !13, null, null, null, i32 0, !15} ; [ DW_TAG_subprogram ] [line 3] [~A]
!13 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !14, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!14 = !{null, !9}
!15 = !{i32 786468}
!16 = !{!17, !18, !19}
!17 = !{!"0x2e\00~A\00~A\00_ZN1AD2Ev\006\000\001\000\006\00256\000\006", !1, !"_ZTS1A", !13, null, void (%struct.A*)* @_ZN1AD2Ev, null, !12, !2} ; [ DW_TAG_subprogram ] [line 6] [def] [~A]
!18 = !{!"0x2e\00~A\00~A\00_ZN1AD1Ev\006\000\001\000\006\00256\000\006", !1, !"_ZTS1A", !13, null, void (%struct.A*)* @_ZN1AD1Ev, null, !12, !2} ; [ DW_TAG_subprogram ] [line 6] [def] [~A]
!19 = !{!"0x2e\00foo\00foo\00_Z3foov\0010\000\001\000\006\00256\000\0010", !1, !20, !21, null, void ()* @_Z3foov, null, null, !2} ; [ DW_TAG_subprogram ] [line 10] [def] [foo]
!20 = !{!"0x29", !1}         ; [ DW_TAG_file_type ] [linkage-name.cpp]
!21 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !22, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!22 = !{null}
!23 = !{i32 2, !"Dwarf Version", i32 2}
!24 = !{i32 1, !"Debug Info Version", i32 2}
!25 = !{!"clang version 3.5.0 "}
!26 = !{!"0x101\00this\0016777216\001088", !17, null, !27} ; [ DW_TAG_arg_variable ] [this] [line 0]
!27 = !{!"0xf\00\000\0064\0064\000\000", null, null, !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
!28 = !MDLocation(line: 0, scope: !17)
!29 = !MDLocation(line: 8, scope: !17)
!30 = !{!"0x101\00this\0016777216\001088", !18, null, !27} ; [ DW_TAG_arg_variable ] [this] [line 0]
!31 = !MDLocation(line: 0, scope: !18)
!32 = !MDLocation(line: 6, scope: !18)
!33 = !MDLocation(line: 8, scope: !18)
!34 = !{!"0x100\00a\0011\000", !19, !20, !"_ZTS1A"} ; [ DW_TAG_auto_variable ] [a] [line 11]
!35 = !MDLocation(line: 11, scope: !19)
!36 = !MDLocation(line: 12, scope: !19)