llvm/test/DebugInfo/AArch64/struct_by_value.ll

; A by-value struct is a register-indirect value (breg).
; RUN: llc %s -filetype=asm -o - | FileCheck %s

; CHECK: DW_AT_location
; CHECK-NEXT: .byte 112
; 112 = 0x70 = DW_OP_breg0

; rdar://problem/13658587
;
; Generated from
;
; struct five
; {
;   int a;
;   int b;
;   int c;
;   int d;
;   int e;
; };
;
; int
; return_five_int (struct five f)
; {
;   return f.a;
; }

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32:64-S128"
target triple = "arm64-apple-ios3.0.0"

%struct.five = type { i32, i32, i32, i32, i32 }

; Function Attrs: nounwind ssp
define i32 @return_five_int(%struct.five* %f) #0 {
entry:
  call void @llvm.dbg.declare(metadata %struct.five* %f, metadata !17, metadata !{!"0x102\006"}), !dbg !18
  %a = getelementptr inbounds %struct.five, %struct.five* %f, i32 0, i32 0, !dbg !19
  %0 = load i32* %a, align 4, !dbg !19
  ret i32 %0, !dbg !19
}

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

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

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!16, !20}

!0 = !{!"0x11\0012\00LLVM version 3.4 \000\00\000\00\000", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [struct_by_value.c] [DW_LANG_C99]
!1 = !{!"struct_by_value.c", !""}
!2 = !{}
!3 = !{!4}
!4 = !{!"0x2e\00return_five_int\00return_five_int\00\0013\000\001\000\006\00256\000\0014", !1, !5, !6, null, i32 (%struct.five*)* @return_five_int, null, null, !2} ; [ DW_TAG_subprogram ] [line 13] [def] [scope 14] [return_five_int]
!5 = !{!"0x29", !1}          ; [ DW_TAG_file_type ] [struct_by_value.c]
!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = !{!8, !9}
!8 = !{!"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]
!9 = !{!"0x13\00five\001\00160\0032\000\000\000", !1, null, null, !10, null, null, null} ; [ DW_TAG_structure_type ] [five] [line 1, size 160, align 32, offset 0] [def] [from ]
!10 = !{!11, !12, !13, !14, !15}
!11 = !{!"0xd\00a\003\0032\0032\000\000", !1, !9, !8} ; [ DW_TAG_member ] [a] [line 3, size 32, align 32, offset 0] [from int]
!12 = !{!"0xd\00b\004\0032\0032\0032\000", !1, !9, !8} ; [ DW_TAG_member ] [b] [line 4, size 32, align 32, offset 32] [from int]
!13 = !{!"0xd\00c\005\0032\0032\0064\000", !1, !9, !8} ; [ DW_TAG_member ] [c] [line 5, size 32, align 32, offset 64] [from int]
!14 = !{!"0xd\00d\006\0032\0032\0096\000", !1, !9, !8} ; [ DW_TAG_member ] [d] [line 6, size 32, align 32, offset 96] [from int]
!15 = !{!"0xd\00e\007\0032\0032\00128\000", !1, !9, !8} ; [ DW_TAG_member ] [e] [line 7, size 32, align 32, offset 128] [from int]
!16 = !{i32 2, !"Dwarf Version", i32 2}
!17 = !{!"0x101\00f\0016777229\000", !4, !5, !9} ; [ DW_TAG_arg_variable ] [f] [line 13]
!18 = !MDLocation(line: 13, scope: !4)
!19 = !MDLocation(line: 16, scope: !4)
!20 = !{i32 1, !"Debug Info Version", i32 2}