xref: /llvm-project/bolt/test/X86/dwarf5-debug-names-union.test (revision 50c0e679b9e23787a4fc5a6a7c04571e4b0bb3f1)

# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s   -o %tmain.o
# RUN: %clang %cflags -gdwarf-5 %tmain.o -o %tmain.exe
# RUN: llvm-bolt %tmain.exe -o %tmain.exe.bolt --update-debug-sections
# RUN: llvm-dwarfdump --debug-names %tmain.exe.bolt > %tlog.txt
# RUN: cat %tlog.txt | FileCheck -check-prefix=BOLT %s

## This test checks that bolt correctly generates entry for DW_TAG_union_type for .debug_name section.

# BOLT:       Abbreviations [
# BOLT-NEXT:   Abbreviation [[ABBREV1:0x[0-9a-f]*]] {
# BOLT-NEXT:     Tag: DW_TAG_subprogram
# BOLT-NEXT:     DW_IDX_die_offset: DW_FORM_ref4
# BOLT-NEXT:     DW_IDX_parent: DW_FORM_flag_present
# BOLT-NEXT:   }
# BOLT-NEXT:   Abbreviation [[ABBREV2:0x[0-9a-f]*]] {
# BOLT-NEXT:     Tag: DW_TAG_base_type
# BOLT-NEXT:     DW_IDX_die_offset: DW_FORM_ref4
# BOLT-NEXT:     DW_IDX_parent: DW_FORM_flag_present
# BOLT-NEXT:   }
# BOLT-NEXT:   Abbreviation [[ABBREV3:0x[0-9a-f]*]] {
# BOLT-NEXT:     Tag: DW_TAG_union_type
# BOLT-NEXT:     DW_IDX_die_offset: DW_FORM_ref4
# BOLT-NEXT:     DW_IDX_parent: DW_FORM_ref4
# BOLT-NEXT:   }
# BOLT-NEXT:   Abbreviation [[ABBREV4:0x[0-9a-f]*]] {
# BOLT-NEXT:     Tag: DW_TAG_structure_type
# BOLT-NEXT:     DW_IDX_die_offset: DW_FORM_ref4
# BOLT-NEXT:     DW_IDX_parent: DW_FORM_ref4
# BOLT-NEXT:   }
# BOLT-NEXT: ]
# BOLT-NEXT: Bucket 0 [
# BOLT-NEXT:   EMPTY
# BOLT-NEXT: ]
# BOLT-NEXT: Bucket 1 [
# BOLT-NEXT:   Name 1 {
# BOLT-NEXT:     Hash: 0x7C9A7F6A
# BOLT-NEXT:     String: {{.+}} "main"
# BOLT-NEXT:     Entry @ [[ENTRY:0x[0-9a-f]*]]  {
# BOLT-NEXT:       Abbrev: [[ABBREV1]]
# BOLT-NEXT:       Tag: DW_TAG_subprogram
# BOLT-NEXT:       DW_IDX_die_offset: 0x00000024
# BOLT-NEXT:       DW_IDX_parent: <parent not indexed>
# BOLT-NEXT:     }
# BOLT-NEXT:   }
# BOLT-NEXT: ]
# BOLT-NEXT: Bucket 2 [
# BOLT-NEXT:   EMPTY
# BOLT-NEXT: ]
# BOLT-NEXT: Bucket 3 [
# BOLT-NEXT:   Name 2 {
# BOLT-NEXT:     Hash: 0xB888030
# BOLT-NEXT:     String: {{.+}} "int"
# BOLT-NEXT:     Entry @ {{.+}} {
# BOLT-NEXT:       Abbrev: [[ABBREV2]]
# BOLT-NEXT:       Tag: DW_TAG_base_type
# BOLT-NEXT:       DW_IDX_die_offset: 0x00000083
# BOLT-NEXT:       DW_IDX_parent: <parent not indexed>
# BOLT-NEXT:     }
# BOLT-NEXT:   }
# BOLT-NEXT:   Name 3 {
# BOLT-NEXT:     Hash: 0xED0F01B4
# BOLT-NEXT:     String: {{.+}} "MyUnion"
# BOLT-NEXT:     Entry @ {{.+}} {
# BOLT-NEXT:       Abbrev: [[ABBREV3]]
# BOLT-NEXT:       Tag: DW_TAG_union_type
# BOLT-NEXT:       DW_IDX_die_offset: 0x00000049
# BOLT-NEXT:       DW_IDX_parent: Entry @ [[ENTRY]]
# BOLT-NEXT:     }
# BOLT-NEXT:   }
# BOLT-NEXT: ]
# BOLT-NEXT: Bucket 4 [
# BOLT-NEXT:   Name 4 {
# BOLT-NEXT:     Hash: 0x8AB681F0
# BOLT-NEXT:     String: {{.+}} "MyStruct"
# BOLT-NEXT:     Entry @ [[ENTRY2:0x[0-9a-f]*]] {
# BOLT-NEXT:       Abbrev: [[ABBREV4]]
# BOLT-NEXT:       Tag: DW_TAG_structure_type
# BOLT-NEXT:       DW_IDX_die_offset: 0x00000062
# BOLT-NEXT:       DW_IDX_parent: Entry @ [[ENTRY]]
# BOLT-NEXT:     }
# BOLT-NEXT:   }
# BOLT-NEXT:   Name 5 {
# BOLT-NEXT:     Hash: 0x8EEF3866
# BOLT-NEXT:     String: {{.+}} "MyUnion2"
# BOLT-NEXT:     Entry @ {{.+}} {
# BOLT-NEXT:       Abbrev: [[ABBREV3]]
# BOLT-NEXT:       Tag: DW_TAG_union_type
# BOLT-NEXT:       DW_IDX_die_offset: 0x00000071
# BOLT-NEXT:       DW_IDX_parent: Entry @ [[ENTRY2]]


## int main() {
##   union MyUnion {
##     int a;
##     int b;
##   };
##   struct MyStruct {
##     union MyUnion2 {
##       int a;
##     };
##     MyUnion2 myUnion2;
##   };
##   MyUnion myEnum;
##   myEnum.a = 5;
##   MyStruct myStruct;
##   return myEnum.a + myStruct.myUnion2.a;
## }

	.text
	.file	"main.cpp"
	.globl	main                            # -- Begin function main
	.p2align	4, 0x90
	.type	main,@function
main:                                   # @main
.Lfunc_begin0:
	.file	0 "union" "main.cpp" md5 0xb75b2512f2daa57bbcfe0c29f56d95f4
	.loc	0 1 0                           # main.cpp:1:0
	retq
.Lfunc_end0:
	.size	main, .-main
                                        # -- End function
	.section	.debug_abbrev,"",@progbits
	.byte	1                               # Abbreviation Code
	.byte	17                              # DW_TAG_compile_unit
	.byte	1                               # DW_CHILDREN_yes
	.byte	37                              # DW_AT_producer
	.byte	37                              # DW_FORM_strx1
	.byte	19                              # DW_AT_language
	.byte	5                               # DW_FORM_data2
	.byte	3                               # DW_AT_name
	.byte	37                              # DW_FORM_strx1
	.byte	114                             # DW_AT_str_offsets_base
	.byte	23                              # DW_FORM_sec_offset
	.byte	16                              # DW_AT_stmt_list
	.byte	23                              # DW_FORM_sec_offset
	.byte	27                              # DW_AT_comp_dir
	.byte	37                              # DW_FORM_strx1
	.byte	17                              # DW_AT_low_pc
	.byte	27                              # DW_FORM_addrx
	.byte	18                              # DW_AT_high_pc
	.byte	6                               # DW_FORM_data4
	.byte	115                             # DW_AT_addr_base
	.byte	23                              # DW_FORM_sec_offset
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	2                               # Abbreviation Code
	.byte	46                              # DW_TAG_subprogram
	.byte	1                               # DW_CHILDREN_yes
	.byte	17                              # DW_AT_low_pc
	.byte	27                              # DW_FORM_addrx
	.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	37                              # DW_FORM_strx1
	.byte	58                              # DW_AT_decl_file
	.byte	11                              # DW_FORM_data1
	.byte	59                              # DW_AT_decl_line
	.byte	11                              # DW_FORM_data1
	.byte	73                              # DW_AT_type
	.byte	19                              # DW_FORM_ref4
	.byte	63                              # DW_AT_external
	.byte	25                              # DW_FORM_flag_present
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	3                               # Abbreviation Code
	.byte	52                              # DW_TAG_variable
	.byte	0                               # DW_CHILDREN_no
	.byte	2                               # DW_AT_location
	.byte	24                              # DW_FORM_exprloc
	.byte	3                               # DW_AT_name
	.byte	37                              # DW_FORM_strx1
	.byte	58                              # DW_AT_decl_file
	.byte	11                              # DW_FORM_data1
	.byte	59                              # DW_AT_decl_line
	.byte	11                              # DW_FORM_data1
	.byte	73                              # DW_AT_type
	.byte	19                              # DW_FORM_ref4
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	4                               # Abbreviation Code
	.byte	23                              # DW_TAG_union_type
	.byte	1                               # DW_CHILDREN_yes
	.byte	54                              # DW_AT_calling_convention
	.byte	11                              # DW_FORM_data1
	.byte	3                               # DW_AT_name
	.byte	37                              # DW_FORM_strx1
	.byte	11                              # DW_AT_byte_size
	.byte	11                              # DW_FORM_data1
	.byte	58                              # DW_AT_decl_file
	.byte	11                              # DW_FORM_data1
	.byte	59                              # DW_AT_decl_line
	.byte	11                              # DW_FORM_data1
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	5                               # Abbreviation Code
	.byte	13                              # DW_TAG_member
	.byte	0                               # DW_CHILDREN_no
	.byte	3                               # DW_AT_name
	.byte	37                              # DW_FORM_strx1
	.byte	73                              # DW_AT_type
	.byte	19                              # DW_FORM_ref4
	.byte	58                              # DW_AT_decl_file
	.byte	11                              # DW_FORM_data1
	.byte	59                              # DW_AT_decl_line
	.byte	11                              # DW_FORM_data1
	.byte	56                              # DW_AT_data_member_location
	.byte	11                              # DW_FORM_data1
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	6                               # Abbreviation Code
	.byte	19                              # DW_TAG_structure_type
	.byte	1                               # DW_CHILDREN_yes
	.byte	54                              # DW_AT_calling_convention
	.byte	11                              # DW_FORM_data1
	.byte	3                               # DW_AT_name
	.byte	37                              # DW_FORM_strx1
	.byte	11                              # DW_AT_byte_size
	.byte	11                              # DW_FORM_data1
	.byte	58                              # DW_AT_decl_file
	.byte	11                              # DW_FORM_data1
	.byte	59                              # DW_AT_decl_line
	.byte	11                              # DW_FORM_data1
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	7                               # Abbreviation Code
	.byte	36                              # DW_TAG_base_type
	.byte	0                               # DW_CHILDREN_no
	.byte	3                               # DW_AT_name
	.byte	37                              # DW_FORM_strx1
	.byte	62                              # DW_AT_encoding
	.byte	11                              # DW_FORM_data1
	.byte	11                              # DW_AT_byte_size
	.byte	11                              # DW_FORM_data1
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	0                               # EOM(3)
	.section	.debug_info,"",@progbits
.Lcu_begin0:
	.long	.Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
.Ldebug_info_start0:
	.short	5                               # DWARF version number
	.byte	1                               # DWARF Unit Type
	.byte	8                               # Address Size (in bytes)
	.long	.debug_abbrev                   # Offset Into Abbrev. Section
	.byte	1                               # Abbrev [1] 0xc:0x7b DW_TAG_compile_unit
	.byte	0                               # DW_AT_producer
	.short	33                              # DW_AT_language
	.byte	1                               # DW_AT_name
	.long	.Lstr_offsets_base0             # DW_AT_str_offsets_base
	.long	.Lline_table_start0             # DW_AT_stmt_list
	.byte	2                               # DW_AT_comp_dir
	.byte	0                               # DW_AT_low_pc
	.long	.Lfunc_end0-.Lfunc_begin0       # DW_AT_high_pc
	.long	.Laddr_table_base0              # DW_AT_addr_base
	.byte	2                               # Abbrev [2] 0x23:0x5f DW_TAG_subprogram
	.byte	0                               # DW_AT_low_pc
	.long	.Lfunc_end0-.Lfunc_begin0       # DW_AT_high_pc
	.byte	1                               # DW_AT_frame_base
	.byte	86
	.byte	3                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	1                               # DW_AT_decl_line
	.long	130                             # DW_AT_type
                                        # DW_AT_external
	.byte	3                               # Abbrev [3] 0x32:0xb DW_TAG_variable
	.byte	2                               # DW_AT_location
	.byte	145
	.byte	120
	.byte	5                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	12                              # DW_AT_decl_line
	.long	72                              # DW_AT_type
	.byte	3                               # Abbrev [3] 0x3d:0xb DW_TAG_variable
	.byte	2                               # DW_AT_location
	.byte	145
	.byte	116
	.byte	9                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	14                              # DW_AT_decl_line
	.long	97                              # DW_AT_type
	.byte	4                               # Abbrev [4] 0x48:0x19 DW_TAG_union_type
	.byte	5                               # DW_AT_calling_convention
	.byte	8                               # DW_AT_name
	.byte	4                               # DW_AT_byte_size
	.byte	0                               # DW_AT_decl_file
	.byte	2                               # DW_AT_decl_line
	.byte	5                               # Abbrev [5] 0x4e:0x9 DW_TAG_member
	.byte	6                               # DW_AT_name
	.long	130                             # DW_AT_type
	.byte	0                               # DW_AT_decl_file
	.byte	3                               # DW_AT_decl_line
	.byte	0                               # DW_AT_data_member_location
	.byte	5                               # Abbrev [5] 0x57:0x9 DW_TAG_member
	.byte	7                               # DW_AT_name
	.long	130                             # DW_AT_type
	.byte	0                               # DW_AT_decl_file
	.byte	4                               # DW_AT_decl_line
	.byte	0                               # DW_AT_data_member_location
	.byte	0                               # End Of Children Mark
	.byte	6                               # Abbrev [6] 0x61:0x20 DW_TAG_structure_type
	.byte	5                               # DW_AT_calling_convention
	.byte	12                              # DW_AT_name
	.byte	4                               # DW_AT_byte_size
	.byte	0                               # DW_AT_decl_file
	.byte	6                               # DW_AT_decl_line
	.byte	5                               # Abbrev [5] 0x67:0x9 DW_TAG_member
	.byte	10                              # DW_AT_name
	.long	112                             # DW_AT_type
	.byte	0                               # DW_AT_decl_file
	.byte	10                              # DW_AT_decl_line
	.byte	0                               # DW_AT_data_member_location
	.byte	4                               # Abbrev [4] 0x70:0x10 DW_TAG_union_type
	.byte	5                               # DW_AT_calling_convention
	.byte	11                              # DW_AT_name
	.byte	4                               # DW_AT_byte_size
	.byte	0                               # DW_AT_decl_file
	.byte	7                               # DW_AT_decl_line
	.byte	5                               # Abbrev [5] 0x76:0x9 DW_TAG_member
	.byte	6                               # DW_AT_name
	.long	130                             # DW_AT_type
	.byte	0                               # DW_AT_decl_file
	.byte	8                               # DW_AT_decl_line
	.byte	0                               # DW_AT_data_member_location
	.byte	0                               # End Of Children Mark
	.byte	0                               # End Of Children Mark
	.byte	0                               # End Of Children Mark
	.byte	7                               # Abbrev [7] 0x82:0x4 DW_TAG_base_type
	.byte	4                               # DW_AT_name
	.byte	5                               # DW_AT_encoding
	.byte	4                               # DW_AT_byte_size
	.byte	0                               # End Of Children Mark
.Ldebug_info_end0:
	.section	.debug_str_offsets,"",@progbits
	.long	56                              # Length of String Offsets Set
	.short	5
	.short	0
.Lstr_offsets_base0:
	.section	.debug_str,"MS",@progbits,1
.Linfo_string0:
	.asciz	"clang version 20.0.0git"       # string offset=0
.Linfo_string1:
	.asciz	"main.cpp"                      # string offset=24
.Linfo_string2:
	.asciz	"union" # string offset=33
.Linfo_string3:
	.asciz	"main"                          # string offset=77
.Linfo_string4:
	.asciz	"int"                           # string offset=82
.Linfo_string5:
	.asciz	"myEnum"                        # string offset=86
.Linfo_string6:
	.asciz	"MyUnion"                       # string offset=93
.Linfo_string7:
	.asciz	"a"                             # string offset=101
.Linfo_string8:
	.asciz	"b"                             # string offset=103
.Linfo_string9:
	.asciz	"myStruct"                      # string offset=105
.Linfo_string10:
	.asciz	"MyStruct"                      # string offset=114
.Linfo_string11:
	.asciz	"myUnion2"                      # string offset=123
.Linfo_string12:
	.asciz	"MyUnion2"                      # string offset=132
	.section	.debug_str_offsets,"",@progbits
	.long	.Linfo_string0
	.long	.Linfo_string1
	.long	.Linfo_string2
	.long	.Linfo_string3
	.long	.Linfo_string4
	.long	.Linfo_string5
	.long	.Linfo_string7
	.long	.Linfo_string8
	.long	.Linfo_string6
	.long	.Linfo_string9
	.long	.Linfo_string11
	.long	.Linfo_string12
	.long	.Linfo_string10
	.section	.debug_addr,"",@progbits
	.long	.Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution
.Ldebug_addr_start0:
	.short	5                               # DWARF version number
	.byte	8                               # Address size
	.byte	0                               # Segment selector size
.Laddr_table_base0:
	.quad	.Lfunc_begin0
.Ldebug_addr_end0:
	.section	.debug_names,"",@progbits
	.long	.Lnames_end0-.Lnames_start0     # Header: unit length
.Lnames_start0:
	.short	5                               # Header: version
	.short	0                               # Header: padding
	.long	1                               # Header: compilation unit count
	.long	0                               # Header: local type unit count
	.long	0                               # Header: foreign type unit count
	.long	5                               # Header: bucket count
	.long	5                               # Header: name count
	.long	.Lnames_abbrev_end0-.Lnames_abbrev_start0 # Header: abbreviation table size
	.long	8                               # Header: augmentation string size
	.ascii	"LLVM0700"                      # Header: augmentation string
	.long	.Lcu_begin0                     # Compilation unit 0
	.long	0                               # Bucket 0
	.long	1                               # Bucket 1
	.long	0                               # Bucket 2
	.long	2                               # Bucket 3
	.long	4                               # Bucket 4
	.long	2090499946                      # Hash in Bucket 1
	.long	193495088                       # Hash in Bucket 3
	.long	-317783628                      # Hash in Bucket 3
	.long	-1967750672                     # Hash in Bucket 4
	.long	-1896925082                     # Hash in Bucket 4
	.long	.Linfo_string3                  # String in Bucket 1: main
	.long	.Linfo_string4                  # String in Bucket 3: int
	.long	.Linfo_string6                  # String in Bucket 3: MyUnion
	.long	.Linfo_string10                 # String in Bucket 4: MyStruct
	.long	.Linfo_string12                 # String in Bucket 4: MyUnion2
	.long	.Lnames0-.Lnames_entries0       # Offset in Bucket 1
	.long	.Lnames1-.Lnames_entries0       # Offset in Bucket 3
	.long	.Lnames2-.Lnames_entries0       # Offset in Bucket 3
	.long	.Lnames3-.Lnames_entries0       # Offset in Bucket 4
	.long	.Lnames4-.Lnames_entries0       # Offset in Bucket 4
.Lnames_abbrev_start0:
	.byte	1                               # Abbrev code
	.byte	46                              # DW_TAG_subprogram
	.byte	3                               # DW_IDX_die_offset
	.byte	19                              # DW_FORM_ref4
	.byte	4                               # DW_IDX_parent
	.byte	25                              # DW_FORM_flag_present
	.byte	0                               # End of abbrev
	.byte	0                               # End of abbrev
	.byte	2                               # Abbrev code
	.byte	36                              # DW_TAG_base_type
	.byte	3                               # DW_IDX_die_offset
	.byte	19                              # DW_FORM_ref4
	.byte	4                               # DW_IDX_parent
	.byte	25                              # DW_FORM_flag_present
	.byte	0                               # End of abbrev
	.byte	0                               # End of abbrev
	.byte	3                               # Abbrev code
	.byte	23                              # DW_TAG_union_type
	.byte	3                               # DW_IDX_die_offset
	.byte	19                              # DW_FORM_ref4
	.byte	4                               # DW_IDX_parent
	.byte	19                              # DW_FORM_ref4
	.byte	0                               # End of abbrev
	.byte	0                               # End of abbrev
	.byte	4                               # Abbrev code
	.byte	19                              # DW_TAG_structure_type
	.byte	3                               # DW_IDX_die_offset
	.byte	19                              # DW_FORM_ref4
	.byte	4                               # DW_IDX_parent
	.byte	19                              # DW_FORM_ref4
	.byte	0                               # End of abbrev
	.byte	0                               # End of abbrev
	.byte	0                               # End of abbrev list
.Lnames_abbrev_end0:
.Lnames_entries0:
.Lnames0:
.L3:
	.byte	1                               # Abbreviation code
	.long	35                              # DW_IDX_die_offset
	.byte	0                               # DW_IDX_parent
                                        # End of list: main
.Lnames1:
.L1:
	.byte	2                               # Abbreviation code
	.long	130                             # DW_IDX_die_offset
	.byte	0                               # DW_IDX_parent
                                        # End of list: int
.Lnames2:
.L4:
	.byte	3                               # Abbreviation code
	.long	72                              # DW_IDX_die_offset
	.long	.L3-.Lnames_entries0            # DW_IDX_parent
	.byte	0                               # End of list: MyUnion
.Lnames3:
.L2:
	.byte	4                               # Abbreviation code
	.long	97                              # DW_IDX_die_offset
	.long	.L3-.Lnames_entries0            # DW_IDX_parent
	.byte	0                               # End of list: MyStruct
.Lnames4:
.L0:
	.byte	3                               # Abbreviation code
	.long	112                             # DW_IDX_die_offset
	.long	.L2-.Lnames_entries0            # DW_IDX_parent
	.byte	0                               # End of list: MyUnion2
	.p2align	2, 0x0
.Lnames_end0:
	.ident	"clang version 20.0.0git"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.section	.debug_line,"",@progbits
.Lline_table_start0: