llvm/lldb/test/Shell/SymbolFile/DWARF/x86/array-sizes.s

# This tests a bug where we would incorrectly parse the size of an array if that
# size happened to match an existing DIE offset. This happened because we
# misinterpreted that value as a reference to a DIE specifying the VLA size even
# though the form was a data form (as it should be).

# REQUIRES: lld

# RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj > %t.o
# RUN: ld.lld %t.o -o %t
# RUN: lldb-test symbols %t | FileCheck %s

# CHECK: Variable{0x0000001e}, name = "X"
# CHECK-SAME: type = {0000000000000033} 0x{{[0-9A-F]*}} (char[56])


# Generated from "char X[47];"
# The array size was modified by hand.

	.text
	.file	"-"
	.file	1 "/tmp" "<stdin>"
	.type	X,@object               # @X
	.comm	X,63,16
	.section	.debug_str,"MS",@progbits,1
.Linfo_string0:
	.asciz	"clang version 8.0.0 (trunk 349604) (llvm/trunk 349608)" # string offset=0
.Linfo_string1:
	.asciz	"-"                     # string offset=55
.Linfo_string2:
	.asciz	"/tmp"                  # string offset=57
.Linfo_string3:
	.asciz	"X"                     # string offset=62
.Linfo_string4:
	.asciz	"char"                  # string offset=64
.Linfo_string5:
	.asciz	"__ARRAY_SIZE_TYPE__"   # string offset=69
	.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	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	0                       # EOM(1)
	.byte	0                       # EOM(2)
	.byte	2                       # Abbreviation Code
	.byte	52                      # DW_TAG_variable
	.byte	0                       # DW_CHILDREN_no
	.byte	3                       # DW_AT_name
	.byte	14                      # DW_FORM_strp
	.byte	73                      # DW_AT_type
	.byte	19                      # DW_FORM_ref4
	.byte	63                      # DW_AT_external
	.byte	25                      # DW_FORM_flag_present
	.byte	58                      # DW_AT_decl_file
	.byte	11                      # DW_FORM_data1
	.byte	59                      # DW_AT_decl_line
	.byte	11                      # DW_FORM_data1
	.byte	2                       # DW_AT_location
	.byte	24                      # DW_FORM_exprloc
	.byte	0                       # EOM(1)
	.byte	0                       # EOM(2)
	.byte	3                       # Abbreviation Code
	.byte	1                       # DW_TAG_array_type
	.byte	1                       # DW_CHILDREN_yes
	.byte	73                      # DW_AT_type
	.byte	19                      # DW_FORM_ref4
	.byte	0                       # EOM(1)
	.byte	0                       # EOM(2)
	.byte	4                       # Abbreviation Code
	.byte	33                      # DW_TAG_subrange_type
	.byte	0                       # DW_CHILDREN_no
	.byte	73                      # DW_AT_type
	.byte	19                      # DW_FORM_ref4
	.byte	55                      # DW_AT_count
	.byte	11                      # DW_FORM_data1
	.byte	0                       # EOM(1)
	.byte	0                       # EOM(2)
	.byte	5                       # Abbreviation Code
	.byte	36                      # DW_TAG_base_type
	.byte	0                       # DW_CHILDREN_no
	.byte	3                       # DW_AT_name
	.byte	14                      # DW_FORM_strp
	.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	6                       # Abbreviation Code
	.byte	36                      # DW_TAG_base_type
	.byte	0                       # DW_CHILDREN_no
	.byte	3                       # DW_AT_name
	.byte	14                      # DW_FORM_strp
	.byte	11                      # DW_AT_byte_size
	.byte	11                      # DW_FORM_data1
	.byte	62                      # DW_AT_encoding
	.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	4                       # DWARF version number
	.long	.debug_abbrev           # Offset Into Abbrev. Section
	.byte	8                       # Address Size (in bytes)
	.byte	1                       # Abbrev [1] 0xb:0x43 DW_TAG_compile_unit
	.long	.Linfo_string0          # DW_AT_producer
	.short	12                      # DW_AT_language
	.long	.Linfo_string1          # DW_AT_name
	.long	0                       # DW_AT_stmt_list
	.long	.Linfo_string2          # DW_AT_comp_dir
	.byte	2                       # Abbrev [2] 0x1e:0x15 DW_TAG_variable
	.long	.Linfo_string3          # DW_AT_name
	.long	51                      # DW_AT_type
                                        # DW_AT_external
	.byte	1                       # DW_AT_decl_file
	.byte	1                       # DW_AT_decl_line
	.byte	9                       # DW_AT_location
	.byte	3
	.quad	X
	.byte	3                       # Abbrev [3] 0x33:0xc DW_TAG_array_type
	.long	63                      # DW_AT_type
.Ldie:
	.byte	4                       # Abbrev [4] 0x38:0x6 DW_TAG_subrange_type
	.long	70                      # DW_AT_type
	.byte	.Ldie-.Lcu_begin0       # DW_AT_count - should match the offset of an existing die
	.byte	0                       # End Of Children Mark
	.byte	5                       # Abbrev [5] 0x3f:0x7 DW_TAG_base_type
	.long	.Linfo_string4          # DW_AT_name
	.byte	6                       # DW_AT_encoding
	.byte	1                       # DW_AT_byte_size
	.byte	6                       # Abbrev [6] 0x46:0x7 DW_TAG_base_type
	.long	.Linfo_string5          # DW_AT_name
	.byte	8                       # DW_AT_byte_size
	.byte	7                       # DW_AT_encoding
	.byte	0                       # End Of Children Mark
.Ldebug_info_end0: