# This test ensures that dwarfdump doesn't crash for malformed DWARF where a
# DIE references itself.
#
# Source:
#   void f();
#   __attribute__((always_inline)) void g() {
#     f();
#   }
#   void h() {
#     g();
#   };
#
# Compile with:
#   clang inlined.c -S -g -o inlined.s
#
# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
# RUN:   | llvm-dwarfdump -debug-info - \
# RUN:   | FileCheck %s

# CHECK: 0x0000005a:     DW_TAG_inlined_subroutine
# CHECK-NEXT: DW_AT_abstract_origin (0x0000005a)

	.section	__TEXT,__text,regular,pure_instructions
	.macosx_version_min 10, 13
	.globl	_g                      ## -- Begin function g
	.p2align	4, 0x90
_g:                                     ## @g
Lfunc_begin0:
	.file	1 "inlined.c"
	.loc	1 2 0                   ## inlined.c:2:0
	.cfi_startproc
## %bb.0:                               ## %entry
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register %rbp
Ltmp0:
	.loc	1 3 3 prologue_end      ## inlined.c:3:3
	movb	$0, %al
	callq	_f
	.loc	1 4 1                   ## inlined.c:4:1
	popq	%rbp
	retq
Ltmp1:
Lfunc_end0:
	.cfi_endproc
                                        ## -- End function
	.globl	_h                      ## -- Begin function h
	.p2align	4, 0x90
_h:                                     ## @h
Lfunc_begin1:
	.loc	1 5 0                   ## inlined.c:5:0
	.cfi_startproc
## %bb.0:                               ## %entry
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset %rbp, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register %rbp
Ltmp2:
	.loc	1 3 3 prologue_end      ## inlined.c:3:3
	movb	$0, %al
	callq	_f
Ltmp3:
	.loc	1 7 1                   ## inlined.c:7:1
	popq	%rbp
	retq
Ltmp4:
Lfunc_end1:
	.cfi_endproc
                                        ## -- End function
	.section	__DWARF,__debug_str,regular,debug
Linfo_string:
	.asciz	"clang version 7.0.0 "  ## string offset=0
	.asciz	"inlined.c"             ## string offset=21
	.asciz	"/private/tmp"          ## string offset=31
	.asciz	"g"                     ## string offset=44
	.asciz	"h"                     ## string offset=46
	.section	__DWARF,__debug_abbrev,regular,debug
Lsection_abbrev:
	.byte	1                       ## Abbreviation Code
	.byte	17                      ## DW_TAG_compile_unit
	.byte	1                       ## DW_CHILDREN_yes
	.byte	37                      ## DW_AT_producer
	.byte	14                      ## DW_FORM_strp
	.byte	19                      ## DW_AT_language
	.byte	5                       ## DW_FORM_data2
	.byte	3                       ## DW_AT_name
	.byte	14                      ## DW_FORM_strp
	.byte	16                      ## DW_AT_stmt_list
	.byte	23                      ## DW_FORM_sec_offset
	.byte	27                      ## DW_AT_comp_dir
	.byte	14                      ## DW_FORM_strp
	.byte	17                      ## DW_AT_low_pc
	.byte	1                       ## DW_FORM_addr
	.byte	18                      ## DW_AT_high_pc
	.byte	6                       ## DW_FORM_data4
	.byte	0                       ## EOM(1)
	.byte	0                       ## EOM(2)
	.byte	2                       ## Abbreviation Code
	.byte	46                      ## DW_TAG_subprogram
	.byte	0                       ## DW_CHILDREN_no
	.byte	17                      ## DW_AT_low_pc
	.byte	1                       ## DW_FORM_addr
	.byte	18                      ## DW_AT_high_pc
	.byte	6                       ## DW_FORM_data4
	.byte	64                      ## DW_AT_frame_base
	.byte	24                      ## DW_FORM_exprloc
	.byte	49                      ## DW_AT_abstract_origin
	.byte	19                      ## DW_FORM_ref4
	.byte	0                       ## EOM(1)
	.byte	0                       ## EOM(2)
	.byte	3                       ## Abbreviation Code
	.byte	46                      ## DW_TAG_subprogram
	.byte	0                       ## DW_CHILDREN_no
	.byte	3                       ## DW_AT_name
	.byte	14                      ## DW_FORM_strp
	.byte	58                      ## DW_AT_decl_file
	.byte	11                      ## DW_FORM_data1
	.byte	59                      ## DW_AT_decl_line
	.byte	11                      ## DW_FORM_data1
	.byte	63                      ## DW_AT_external
	.byte	25                      ## DW_FORM_flag_present
	.byte	32                      ## DW_AT_inline
	.byte	11                      ## DW_FORM_data1
	.byte	0                       ## EOM(1)
	.byte	0                       ## EOM(2)
	.byte	4                       ## Abbreviation Code
	.byte	46                      ## DW_TAG_subprogram
	.byte	1                       ## DW_CHILDREN_yes
	.byte	17                      ## DW_AT_low_pc
	.byte	1                       ## DW_FORM_addr
	.byte	18                      ## DW_AT_high_pc
	.byte	6                       ## DW_FORM_data4
	.byte	64                      ## DW_AT_frame_base
	.byte	24                      ## DW_FORM_exprloc
	.byte	3                       ## DW_AT_name
	.byte	14                      ## DW_FORM_strp
	.byte	58                      ## DW_AT_decl_file
	.byte	11                      ## DW_FORM_data1
	.byte	59                      ## DW_AT_decl_line
	.byte	11                      ## DW_FORM_data1
	.byte	63                      ## DW_AT_external
	.byte	25                      ## DW_FORM_flag_present
	.byte	0                       ## EOM(1)
	.byte	0                       ## EOM(2)
	.byte	5                       ## Abbreviation Code
	.byte	29                      ## DW_TAG_inlined_subroutine
	.byte	0                       ## DW_CHILDREN_no
	.byte	49                      ## DW_AT_abstract_origin
	.byte	19                      ## DW_FORM_ref4
	.byte	17                      ## DW_AT_low_pc
	.byte	1                       ## DW_FORM_addr
	.byte	18                      ## DW_AT_high_pc
	.byte	6                       ## DW_FORM_data4
	.byte	88                      ## DW_AT_call_file
	.byte	11                      ## DW_FORM_data1
	.byte	89                      ## DW_AT_call_line
	.byte	11                      ## DW_FORM_data1
	.byte	0                       ## EOM(1)
	.byte	0                       ## EOM(2)
	.byte	0                       ## EOM(3)
	.section	__DWARF,__debug_info,regular,debug
Lsection_info:
Lcu_begin0:
	.long	107                     ## Length of Unit
	.short	4                       ## DWARF version number
Lset0 = Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
	.long	Lset0
	.byte	8                       ## Address Size (in bytes)
	.byte	1                       ## Abbrev [1] 0xb:0x64 DW_TAG_compile_unit
	.long	0                       ## DW_AT_producer
	.short	12                      ## DW_AT_language
	.long	21                      ## DW_AT_name
Lset1 = Lline_table_start0-Lsection_line ## DW_AT_stmt_list
	.long	Lset1
	.long	31                      ## DW_AT_comp_dir
	.quad	Lfunc_begin0            ## DW_AT_low_pc
Lset2 = Lfunc_end1-Lfunc_begin0         ## DW_AT_high_pc
	.long	Lset2
	.byte	2                       ## Abbrev [2] 0x2a:0x13 DW_TAG_subprogram
	.quad	Lfunc_begin0            ## DW_AT_low_pc
Lset3 = Lfunc_end0-Lfunc_begin0         ## DW_AT_high_pc
	.long	Lset3
	.byte	1                       ## DW_AT_frame_base
	.byte	86
	.long	61                      ## DW_AT_abstract_origin
	.byte	3                       ## Abbrev [3] 0x3d:0x8 DW_TAG_subprogram
	.long	44                      ## DW_AT_name
	.byte	1                       ## DW_AT_decl_file
	.byte	2                       ## DW_AT_decl_line
                                        ## DW_AT_external
	.byte	1                       ## DW_AT_inline
	.byte	4                       ## Abbrev [4] 0x45:0x29 DW_TAG_subprogram
	.quad	Lfunc_begin1            ## DW_AT_low_pc
Lset4 = Lfunc_end1-Lfunc_begin1         ## DW_AT_high_pc
	.long	Lset4
	.byte	1                       ## DW_AT_frame_base
	.byte	86
	.long	46                      ## DW_AT_name
	.byte	1                       ## DW_AT_decl_file
	.byte	5                       ## DW_AT_decl_line
                                        ## DW_AT_external
	.byte	5                       ## Abbrev [5] 0x5a:0x13 DW_TAG_inlined_subroutine
	.long	90                      ## DW_AT_abstract_origin <- We modified the value so the DIE references itself.
	.quad	Ltmp2                   ## DW_AT_low_pc
Lset5 = Ltmp3-Ltmp2                     ## DW_AT_high_pc
	.long	Lset5
	.byte	1                       ## DW_AT_call_file
	.byte	6                       ## DW_AT_call_line
	.byte	0                       ## End Of Children Mark
	.byte	0                       ## End Of Children Mark
	.section	__DWARF,__debug_ranges,regular,debug
Ldebug_range:
	.section	__DWARF,__debug_macinfo,regular,debug
Ldebug_macinfo:
Lcu_macro_begin0:
	.byte	0                       ## End Of Macro List Mark
	.section	__DWARF,__apple_names,regular,debug
Lnames_begin:
	.long	1212240712              ## Header Magic
	.short	1                       ## Header Version
	.short	0                       ## Header Hash Function
	.long	2                       ## Header Bucket Count
	.long	2                       ## Header Hash Count
	.long	12                      ## Header Data Length
	.long	0                       ## HeaderData Die Offset Base
	.long	1                       ## HeaderData Atom Count
	.short	1                       ## DW_ATOM_die_offset
	.short	6                       ## DW_FORM_data4
	.long	0                       ## Bucket 0
	.long	1                       ## Bucket 1
	.long	177676                  ## Hash in Bucket 0
	.long	177677                  ## Hash in Bucket 1
	.long	LNames0-Lnames_begin    ## Offset in Bucket 0
	.long	LNames1-Lnames_begin    ## Offset in Bucket 1
LNames0:
	.long	44                      ## g
	.long	2                       ## Num DIEs
	.long	42
	.long	90
	.long	0
LNames1:
	.long	46                      ## h
	.long	1                       ## Num DIEs
	.long	69
	.long	0
	.section	__DWARF,__apple_objc,regular,debug
Lobjc_begin:
	.long	1212240712              ## Header Magic
	.short	1                       ## Header Version
	.short	0                       ## Header Hash Function
	.long	1                       ## Header Bucket Count
	.long	0                       ## Header Hash Count
	.long	12                      ## Header Data Length
	.long	0                       ## HeaderData Die Offset Base
	.long	1                       ## HeaderData Atom Count
	.short	1                       ## DW_ATOM_die_offset
	.short	6                       ## DW_FORM_data4
	.long	-1                      ## Bucket 0
	.section	__DWARF,__apple_namespac,regular,debug
Lnamespac_begin:
	.long	1212240712              ## Header Magic
	.short	1                       ## Header Version
	.short	0                       ## Header Hash Function
	.long	1                       ## Header Bucket Count
	.long	0                       ## Header Hash Count
	.long	12                      ## Header Data Length
	.long	0                       ## HeaderData Die Offset Base
	.long	1                       ## HeaderData Atom Count
	.short	1                       ## DW_ATOM_die_offset
	.short	6                       ## DW_FORM_data4
	.long	-1                      ## Bucket 0
	.section	__DWARF,__apple_types,regular,debug
Ltypes_begin:
	.long	1212240712              ## Header Magic
	.short	1                       ## Header Version
	.short	0                       ## Header Hash Function
	.long	1                       ## Header Bucket Count
	.long	0                       ## Header Hash Count
	.long	20                      ## Header Data Length
	.long	0                       ## HeaderData Die Offset Base
	.long	3                       ## HeaderData Atom Count
	.short	1                       ## DW_ATOM_die_offset
	.short	6                       ## DW_FORM_data4
	.short	3                       ## DW_ATOM_die_tag
	.short	5                       ## DW_FORM_data2
	.short	4                       ## DW_ATOM_type_flags
	.short	11                      ## DW_FORM_data1
	.long	-1                      ## Bucket 0

.subsections_via_symbols
	.section	__DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0: