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diff --git a/test/DebugInfo/X86/dwarfdump-header.s b/test/DebugInfo/X86/dwarfdump-header.s
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+# Test object to verify dwarfdump handles v4 and v5 CU/TU/line headers.
+# We have a representative set of units: v4 CU, v5 CU, v4 TU, v5 split TU.
+# We have v4 and v5 line-table headers.
+#
+# RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o - | \
+# RUN: llvm-dwarfdump -v - | FileCheck %s
+
+ .section .debug_str,"MS",@progbits,1
+str_producer:
+ .asciz "Handmade DWARF producer"
+str_CU_4:
+ .asciz "V4_compile_unit"
+str_CU_5:
+ .asciz "V5_compile_unit"
+str_TU_4:
+ .asciz "V4_type_unit"
+str_LT_5a:
+ .asciz "Directory5a"
+str_LT_5b:
+ .asciz "Directory5b"
+
+ .section .debug_str.dwo,"MS",@progbits,1
+dwo_TU_5:
+ .asciz "V5_split_type_unit"
+
+# All CUs/TUs use the same abbrev section for simplicity.
+ .section .debug_abbrev,"",@progbits
+ .byte 0x01 # Abbrev code
+ .byte 0x11 # DW_TAG_compile_unit
+ .byte 0x00 # DW_CHILDREN_no
+ .byte 0x25 # DW_AT_producer
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x03 # DW_AT_name
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x10 # DW_AT_stmt_list
+ .byte 0x17 # DW_FORM_sec_offset
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x02 # Abbrev code
+ .byte 0x41 # DW_TAG_type_unit
+ .byte 0x01 # DW_CHILDREN_yes
+ .byte 0x03 # DW_AT_name
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x03 # Abbrev code
+ .byte 0x13 # DW_TAG_structure_type
+ .byte 0x00 # DW_CHILDREN_no (no members)
+ .byte 0x03 # DW_AT_name
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x00 # EOM(3)
+
+# And a .dwo copy for the .dwo sections.
+ .section .debug_abbrev.dwo,"",@progbits
+ .byte 0x01 # Abbrev code
+ .byte 0x11 # DW_TAG_compile_unit
+ .byte 0x00 # DW_CHILDREN_no
+ .byte 0x25 # DW_AT_producer
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x03 # DW_AT_name
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x02 # Abbrev code
+ .byte 0x41 # DW_TAG_type_unit
+ .byte 0x01 # DW_CHILDREN_yes
+ .byte 0x03 # DW_AT_name
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x03 # Abbrev code
+ .byte 0x13 # DW_TAG_structure_type
+ .byte 0x00 # DW_CHILDREN_no (no members)
+ .byte 0x03 # DW_AT_name
+ .byte 0x0e # DW_FORM_strp
+ .byte 0x00 # EOM(1)
+ .byte 0x00 # EOM(2)
+ .byte 0x00 # EOM(3)
+
+ .section .debug_info,"",@progbits
+# CHECK-LABEL: .debug_info contents:
+
+# DWARF v4 CU header. V4 CU headers all look the same so we do only one.
+ .long CU_4_end-CU_4_version # Length of Unit
+CU_4_version:
+ .short 4 # DWARF version number
+ .long .debug_abbrev # Offset Into Abbrev. Section
+ .byte 8 # Address Size (in bytes)
+# The compile-unit DIE, with DW_AT_producer, DW_AT_name, DW_AT_stmt_list.
+ .byte 1
+ .long str_producer
+ .long str_CU_4
+ .long LH_4_start
+ .byte 0 # NULL
+CU_4_end:
+
+# CHECK: 0x00000000: Compile Unit: length = 0x00000015 version = 0x0004 abbr_offset = 0x0000 addr_size = 0x08 (next unit at 0x00000019)
+# CHECK: 0x0000000b: DW_TAG_compile_unit
+
+# DWARF v5 normal CU header.
+ .long CU_5_end-CU_5_version # Length of Unit
+CU_5_version:
+ .short 5 # DWARF version number
+ .byte 1 # DWARF Unit Type
+ .byte 8 # Address Size (in bytes)
+ .long .debug_abbrev # Offset Into Abbrev. Section
+# The compile-unit DIE, with DW_AT_producer, DW_AT_name, DW_AT_stmt_list.
+ .byte 1
+ .long str_producer
+ .long str_CU_5
+ .long LH_5_start
+ .byte 0 # NULL
+CU_5_end:
+
+# CHECK: 0x00000019: Compile Unit: length = 0x00000016 version = 0x0005 unit_type = DW_UT_compile abbr_offset = 0x0000 addr_size = 0x08 (next unit at 0x00000033)
+# CHECK: 0x00000025: DW_TAG_compile_unit
+
+ .section .debug_types,"",@progbits
+# CHECK-LABEL: .debug_types contents:
+
+# DWARF v4 Type unit header. Normal/split are identical so we do only one.
+TU_4_start:
+ .long TU_4_end-TU_4_version # Length of Unit
+TU_4_version:
+ .short 4 # DWARF version number
+ .long .debug_abbrev # Offset Into Abbrev. Section
+ .byte 8 # Address Size (in bytes)
+ .quad 0x0011223344556677 # Type Signature
+ .long TU_4_type-TU_4_start # Type offset
+# The type-unit DIE, which has a name.
+ .byte 2
+ .long str_TU_4
+# The type DIE, which has a name.
+TU_4_type:
+ .byte 3
+ .long str_TU_4
+ .byte 0 # NULL
+ .byte 0 # NULL
+TU_4_end:
+
+# CHECK: 0x00000000: Type Unit: length = 0x0000001f version = 0x0004 abbr_offset = 0x0000 addr_size = 0x08 name = 'V4_type_unit' type_signature = 0x0011223344556677 type_offset = 0x001c (next unit at 0x00000023)
+# CHECK: 0x00000017: DW_TAG_type_unit
+
+ .section .debug_types.dwo,"",@progbits
+# FIXME: DWARF v5 wants type units in .debug_info[.dwo] not .debug_types[.dwo].
+# CHECK: .debug_types.dwo contents:
+
+# DWARF v5 split type unit header.
+TU_split_5_start:
+ .long TU_split_5_end-TU_split_5_version # Length of Unit
+TU_split_5_version:
+ .short 5 # DWARF version number
+ .byte 6 # DWARF Unit Type
+ .byte 8 # Address Size (in bytes)
+ .long .debug_abbrev.dwo # Offset Into Abbrev. Section
+ .quad 0x8899aabbccddeeff # Type Signature
+ .long TU_split_5_type-TU_split_5_start # Type offset
+# The type-unit DIE, which has a name.
+ .byte 2
+ .long dwo_TU_5
+# The type DIE, which has a name.
+TU_split_5_type:
+ .byte 3
+ .long dwo_TU_5
+ .byte 0 # NULL
+ .byte 0 # NULL
+TU_split_5_end:
+
+# CHECK: 0x00000000: Type Unit: length = 0x00000020 version = 0x0005 unit_type = DW_UT_split_type abbr_offset = 0x0000 addr_size = 0x08 name = 'V5_split_type_unit' type_signature = 0x8899aabbccddeeff type_offset = 0x001d (next unit at 0x00000024)
+# CHECK: 0x00000018: DW_TAG_type_unit
+
+ .section .debug_line,"",@progbits
+# CHECK-LABEL: .debug_line contents:
+
+# DWARF v4 line-table header.
+LH_4_start:
+ .long LH_4_end-LH_4_version # Length of Unit
+LH_4_version:
+ .short 4 # DWARF version number
+ .long LH_4_header_end-LH_4_params # Length of Prologue
+LH_4_params:
+ .byte 1 # Minimum Instruction Length
+ .byte 1 # Maximum Operations per Instruction
+ .byte 1 # Default is_stmt
+ .byte -5 # Line Base
+ .byte 14 # Line Range
+ .byte 13 # Opcode Base
+ .byte 0 # Standard Opcode Lengths
+ .byte 1
+ .byte 1
+ .byte 1
+ .byte 1
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 1
+ .byte 0
+ .byte 0
+ .byte 1
+ # Directory table
+ .asciz "Directory4a"
+ .asciz "Directory4b"
+ .byte 0
+ # File table
+ .asciz "File4a" # File name 1
+ .byte 1 # Directory index 1
+ .byte 0x41 # Timestamp 1
+ .byte 0x42 # File Size 1
+ .asciz "File4b" # File name 2
+ .byte 0 # Directory index 2
+ .byte 0x43 # Timestamp 2
+ .byte 0x44 # File Size 2
+ .byte 0 # End of list
+LH_4_header_end:
+ # Line number program, which is empty.
+LH_4_end:
+
+# CHECK: Line table prologue:
+# CHECK: version: 4
+# CHECK-NOT: address_size
+# CHECK-NOT: seg_select_size
+# CHECK: max_ops_per_inst: 1
+# CHECK: include_directories[ 1] = 'Directory4a'
+# CHECK: include_directories[ 2] = 'Directory4b'
+# CHECK-NOT: include_directories
+# CHECK: file_names[ 1] 1 0x00000041 0x00000042 File4a{{$}}
+# CHECK: file_names[ 2] 0 0x00000043 0x00000044 File4b{{$}}
+# CHECK-NOT: file_names
+
+# DWARF v5 line-table header.
+LH_5_start:
+ .long LH_5_end-LH_5_version # Length of Unit
+LH_5_version:
+ .short 5 # DWARF version number
+ .byte 8 # Address Size
+ .byte 0 # Segment Selector Size
+ .long LH_5_header_end-LH_5_params # Length of Prologue
+LH_5_params:
+ .byte 1 # Minimum Instruction Length
+ .byte 1 # Maximum Operations per Instruction
+ .byte 1 # Default is_stmt
+ .byte -5 # Line Base
+ .byte 14 # Line Range
+ .byte 13 # Opcode Base
+ .byte 0 # Standard Opcode Lengths
+ .byte 1
+ .byte 1
+ .byte 1
+ .byte 1
+ .byte 0
+ .byte 0
+ .byte 0
+ .byte 1
+ .byte 0
+ .byte 0
+ .byte 1
+ # Directory table format
+ .byte 1 # One element per directory entry
+ .byte 1 # DW_LNCT_path
+ .byte 0x0e # DW_FORM_strp (-> .debug_str)
+ # Directory table entries
+ .byte 2 # Two directories
+ .long str_LT_5a
+ .long str_LT_5b
+ # File table format
+ .byte 4 # Four elements per file entry
+ .byte 1 # DW_LNCT_path
+ .byte 0x08 # DW_FORM_string
+ .byte 2 # DW_LNCT_directory_index
+ .byte 0x0b # DW_FORM_data1
+ .byte 3 # DW_LNCT_timestamp
+ .byte 0x0f # DW_FORM_udata
+ .byte 4 # DW_LNCT_size
+ .byte 0x0f # DW_FORM_udata
+ # File table entries
+ .byte 2 # Two files
+ .asciz "File5a"
+ .byte 1
+ .byte 0x51
+ .byte 0x52
+ .asciz "File5b"
+ .byte 2
+ .byte 0x53
+ .byte 0x54
+LH_5_header_end:
+ # Line number program, which is empty.
+LH_5_end:
+
+# CHECK: Line table prologue:
+# CHECK: version: 5
+# CHECK: address_size: 8
+# CHECK: seg_select_size: 0
+# CHECK: max_ops_per_inst: 1
+# CHECK: include_directories[ 1] = 'Directory5a'
+# CHECK: include_directories[ 2] = 'Directory5b'
+# CHECK-NOT: include_directories
+# CHECK: file_names[ 1] 1 0x00000051 0x00000052 File5a{{$}}
+# CHECK: file_names[ 2] 2 0x00000053 0x00000054 File5b{{$}}
+# CHECK-NOT: file_names
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-27 15:07:17 +0000