# RUN: llvm-mc -filetype=obj -o %t -triple x86_64-apple-macosx10.15.0 %s
# RUN: %lldb %t -o "target variable ug" -b | FileCheck %s

# CHECK: (lldb) target variable ug
# CHECK: (U) ug = {
# CHECK:   raw = 1688469761
# CHECK:    = (a = 1, b = 1, c = 36, d = 2, e = 36, f = 1)
# CHECK: }

# We are testing how ValueObject deals with bit-fields when an argument is
# passed by register. Compiling at -O1 allows us to capture this case and
# test it.
#
# typedef union {
#   unsigned raw;
#   struct {
#      unsigned a : 8;
#      unsigned b : 8;
#      unsigned c : 6;
#      unsigned d : 2;
#      unsigned e : 6;
#      unsigned f : 2;
#   };
# } U;
#
# // This appears first in the debug info and pulls the type definition in...
# static U __attribute__((used)) _type_anchor;
# // ... then our useful variable appears last in the debug info and we can
# // tweak the assembly without needing to edit a lot of offsets by hand.
# static U ug;
#
# extern void f(U);
#
# // Omit debug info for main.
# __attribute__((nodebug))
# int main() {
#   ug.raw = 0x64A40101;
#   f(ug);
#   f((U)ug.raw);
# }
#
# Compiled as follows:
#
#   clang -O1 -gdwarf-4 weird.c -S -o weird.s
#
# Then the DWARF was hand modified to get DW_AT_LOCATION for ug from:
#
#   DW_AT_location	(DW_OP_addr 0x3f8, DW_OP_deref, DW_OP_constu 0x64a40101, DW_OP_mul, DW_OP_lit0, DW_OP_plus, DW_OP_stack_value)
#
# to this:
#
#   DW_AT_location	(DW_OP_constu 0x64a40101, DW_OP_stack_value)
#
# to work-around a seperate bug.

.zerofill __DATA,__bss,__type_anchor,4,2 ## @_type_anchor
.zerofill __DATA,__bss,_ug.0,1,2        ## @ug.0
	.no_dead_strip	__type_anchor
	.section	__DWARF,__debug_str,regular,debug
Linfo_string:
	.zero 138
	.asciz	"_type_anchor"          ## string offset=138
	.asciz	"U"                     ## string offset=151
	.asciz	"raw"                   ## string offset=153
	.asciz	"unsigned int"          ## string offset=157
	.asciz	"a"                     ## string offset=170
	.asciz	"b"                     ## string offset=172
	.asciz	"c"                     ## string offset=174
	.asciz	"d"                     ## string offset=176
	.asciz	"e"                     ## string offset=178
	.asciz	"f"                     ## string offset=180
	.asciz	"ug"                    ## string offset=182
	.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
	.ascii	"\202|"                 ## DW_AT_LLVM_sysroot
	.byte	14                      ## DW_FORM_strp
	.ascii	"\357\177"              ## DW_AT_APPLE_sdk
	.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
	.ascii	"\341\177"              ## DW_AT_APPLE_optimized
	.byte	25                      ## DW_FORM_flag_present
	.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	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	22                      ## DW_TAG_typedef
	.byte	0                       ## DW_CHILDREN_no
	.byte	73                      ## DW_AT_type
	.byte	19                      ## DW_FORM_ref4
	.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	0                       ## EOM(1)
	.byte	0                       ## EOM(2)
	.byte	4                       ## Abbreviation Code
	.byte	23                      ## DW_TAG_union_type
	.byte	1                       ## DW_CHILDREN_yes
	.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	14                      ## DW_FORM_strp
	.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	13                      ## DW_TAG_member
	.byte	0                       ## DW_CHILDREN_no
	.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	7                       ## Abbreviation Code
	.byte	19                      ## DW_TAG_structure_type
	.byte	1                       ## DW_CHILDREN_yes
	.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	8                       ## Abbreviation Code
	.byte	13                      ## DW_TAG_member
	.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	58                      ## DW_AT_decl_file
	.byte	11                      ## DW_FORM_data1
	.byte	59                      ## DW_AT_decl_line
	.byte	11                      ## DW_FORM_data1
	.byte	13                      ## DW_AT_bit_size
	.byte	11                      ## DW_FORM_data1
	.byte	107                     ## DW_AT_data_bit_offset
	.byte	11                      ## DW_FORM_data1
	.byte	0                       ## EOM(1)
	.byte	0                       ## EOM(2)
	.byte	9                       ## 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	0                       ## EOM(3)
	.section	__DWARF,__debug_info,regular,debug
Lsection_info:
Lcu_begin0:
.set Lset0, Ldebug_info_end0-Ldebug_info_start0 ## Length of Unit
	.long	Lset0
Ldebug_info_start0:
	.short	4                       ## DWARF version number
.set Lset1, Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
	.long	Lset1
	.byte	8                       ## Address Size (in bytes)
	.byte	1                       ## Abbrev [1] 0xb:0xd0 DW_TAG_compile_unit
	.long	0                       ## DW_AT_producer
	.short	12                      ## DW_AT_language
	.long	47                      ## DW_AT_name
	.long	60                      ## DW_AT_LLVM_sysroot
	.long	117                     ## DW_AT_APPLE_sdk
        .long   0                       ## DW_AT_stmt_list
	.long	133                     ## DW_AT_comp_dir
                                        ## DW_AT_APPLE_optimized
	.byte	2                       ## Abbrev [2] 0x26:0x15 DW_TAG_variable
	.long	138                     ## DW_AT_name
	.long	59                      ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	14                      ## DW_AT_decl_line
	.byte	9                       ## DW_AT_location
	.byte	3
	.quad	__type_anchor
	.byte	3                       ## Abbrev [3] 0x3b:0xb DW_TAG_typedef
	.long	70                      ## DW_AT_type
	.long	151                     ## DW_AT_name
	.byte	1                       ## DW_AT_decl_file
	.byte	11                      ## DW_AT_decl_line
	.byte	4                       ## Abbrev [4] 0x46:0x6c DW_TAG_union_type
	.byte	4                       ## DW_AT_byte_size
	.byte	1                       ## DW_AT_decl_file
	.byte	1                       ## DW_AT_decl_line
	.byte	5                       ## Abbrev [5] 0x4a:0xc DW_TAG_member
	.long	153                     ## DW_AT_name
	.long	178                     ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	2                       ## DW_AT_decl_line
	.byte	0                       ## DW_AT_data_member_location
	.byte	6                       ## Abbrev [6] 0x56:0x8 DW_TAG_member
	.long	94                      ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	3                       ## DW_AT_decl_line
	.byte	0                       ## DW_AT_data_member_location
	.byte	7                       ## Abbrev [7] 0x5e:0x53 DW_TAG_structure_type
	.byte	4                       ## DW_AT_byte_size
	.byte	1                       ## DW_AT_decl_file
	.byte	3                       ## DW_AT_decl_line
	.byte	8                       ## Abbrev [8] 0x62:0xd DW_TAG_member
	.long	170                     ## DW_AT_name
	.long	178                     ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	4                       ## DW_AT_decl_line
	.byte	8                       ## DW_AT_bit_size
	.byte	0                       ## DW_AT_data_bit_offset
	.byte	8                       ## Abbrev [8] 0x6f:0xd DW_TAG_member
	.long	172                     ## DW_AT_name
	.long	178                     ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	5                       ## DW_AT_decl_line
	.byte	8                       ## DW_AT_bit_size
	.byte	8                       ## DW_AT_data_bit_offset
	.byte	8                       ## Abbrev [8] 0x7c:0xd DW_TAG_member
	.long	174                     ## DW_AT_name
	.long	178                     ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	6                       ## DW_AT_decl_line
	.byte	6                       ## DW_AT_bit_size
	.byte	16                      ## DW_AT_data_bit_offset
	.byte	8                       ## Abbrev [8] 0x89:0xd DW_TAG_member
	.long	176                     ## DW_AT_name
	.long	178                     ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	7                       ## DW_AT_decl_line
	.byte	2                       ## DW_AT_bit_size
	.byte	22                      ## DW_AT_data_bit_offset
	.byte	8                       ## Abbrev [8] 0x96:0xd DW_TAG_member
	.long	178                     ## DW_AT_name
	.long	178                     ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	8                       ## DW_AT_decl_line
	.byte	6                       ## DW_AT_bit_size
	.byte	24                      ## DW_AT_data_bit_offset
	.byte	8                       ## Abbrev [8] 0xa3:0xd DW_TAG_member
	.long	180                     ## DW_AT_name
	.long	178                     ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	9                       ## DW_AT_decl_line
	.byte	2                       ## DW_AT_bit_size
	.byte	30                      ## DW_AT_data_bit_offset
	.byte	0                       ## End Of Children Mark
	.byte	0                       ## End Of Children Mark
	.byte	9                       ## Abbrev [9] 0xb2:0x7 DW_TAG_base_type
	.long	157                     ## DW_AT_name
	.byte	7                       ## DW_AT_encoding
	.byte	4                       ## DW_AT_byte_size
	.byte	2                       ## Abbrev [2] 0xb9:0x21 DW_TAG_variable
	.long	182                     ## DW_AT_name
	.long	59                      ## DW_AT_type
	.byte	1                       ## DW_AT_decl_file
	.byte	17                      ## DW_AT_decl_line
	.byte	7                       ## DW_AT_location
	.byte	16
	.ascii	"\201\202\220\245\006"
	.byte	159
	.byte	0                       ## End Of Children Mark
Ldebug_info_end0: