llvm/bolt/test/X86/dwarf5-locexpr-addrx.s

# REQUIRES: system-linux

# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o
# RUN: %clang %cflags -dwarf-5 %tmain.o -o %t.exe -Wl,-q
# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections
# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s
# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s

## This test checks that we correctly encode new index into .debug_addr section
## from DW_AT_location [DW_FORM_exprloc]  (DW_OP_addrx 0x#)

# PRECHECK: version = 0x0005
# PRECHECK: DW_TAG_variable
# PRECHECK: DW_AT_location [DW_FORM_exprloc]  (DW_OP_addrx 0x0)
# PRECHECK: DW_TAG_variable
# PRECHECK: DW_AT_location [DW_FORM_exprloc]  (DW_OP_addrx 0x1)
# PRECHECK-EMPTY:

# POSTCHECK: version = 0x0005
# POSTCHECK: DW_TAG_variable
# POSTCHECK: DW_AT_location [DW_FORM_exprloc]  (DW_OP_addrx 0x2)
# POSTCHECK-EMPTY:
# POSTCHECK: DW_TAG_variable
# POSTCHECK: DW_AT_location [DW_FORM_exprloc]  (DW_OP_addrx 0x3)
# POSTCHECK-EMPTY:

# clang++ main.cpp -g -O2
# void use(int * x, int * y) {
# *x += 4;
# *y -= 2;
# }
#
# int x = 0;
# int y = 1;
# int  main(int argc, char *argv[]) {
#    x = argc;
#    y = argc + 3;
#    use(&x, &y);
#    return x + y;
# }

	.text
	.file	"main.cpp"
	.file	0 "/testLocExprLoc" "main.cpp" md5 0xd4fd79ce0087c4cefd089752bf2182c6
	.globl	_Z3usePiS_                      # -- Begin function _Z3usePiS_
	.p2align	4, 0x90
	.type	_Z3usePiS_,@function
_Z3usePiS_:                             # @_Z3usePiS_
.Lfunc_begin0:
	.loc	0 1 0                           # main.cpp:1:0
	.cfi_startproc
# %bb.0:                                # %entry
	#DEBUG_VALUE: use:x <- $rdi
	#DEBUG_VALUE: use:y <- $rsi
	.loc	0 2 4 prologue_end              # main.cpp:2:4
	addl	$4, (%rdi)
	.loc	0 3 4                           # main.cpp:3:4
	addl	$-2, (%rsi)
	.loc	0 4 1                           # main.cpp:4:1
	retq
.Ltmp0:
.Lfunc_end0:
	.size	_Z3usePiS_, .Lfunc_end0-_Z3usePiS_
	.cfi_endproc
                                        # -- End function
	.globl	main                            # -- Begin function main
	.p2align	4, 0x90
	.type	main,@function
main:                                   # @main
.Lfunc_begin1:
	.loc	0 8 0                           # main.cpp:8:0
	.cfi_startproc
# %bb.0:                                # %entry
	#DEBUG_VALUE: main:argc <- $edi
	#DEBUG_VALUE: main:argv <- $rsi
                                        # kill: def $edi killed $edi def $rdi
	.loc	0 2 4 prologue_end              # main.cpp:2:4
	leal	4(%rdi), %eax
	movl	%eax, x(%rip)
.Ltmp1:
	#DEBUG_VALUE: use:x <- undef
	.loc	0 3 4                           # main.cpp:3:4
	leal	1(%rdi), %eax
	movl	%eax, y(%rip)
.Ltmp2:
	#DEBUG_VALUE: use:y <- undef
	.loc	0 12 13                         # main.cpp:12:13
	leal	(%rdi,%rdi), %eax
	addl	$5, %eax
	.loc	0 12 4 is_stmt 0                # main.cpp:12:4
	retq
.Ltmp3:
.Lfunc_end1:
	.size	main, .Lfunc_end1-main
	.cfi_endproc
                                        # -- End function
	.type	x,@object                       # @x
	.bss
	.globl	x
	.p2align	2
x:
	.long	0                               # 0x0
	.size	x, 4

	.type	y,@object                       # @y
	.data
	.globl	y
	.p2align	2
y:
	.long	1                               # 0x1
	.size	y, 4

	.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	52                              # DW_TAG_variable
	.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	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	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	4                               # 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	122                             # DW_AT_call_all_calls
	.byte	25                              # DW_FORM_flag_present
	.byte	49                              # DW_AT_abstract_origin
	.byte	19                              # DW_FORM_ref4
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	5                               # Abbreviation Code
	.byte	5                               # DW_TAG_formal_parameter
	.byte	0                               # DW_CHILDREN_no
	.byte	2                               # DW_AT_location
	.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	6                               # Abbreviation Code
	.byte	46                              # DW_TAG_subprogram
	.byte	1                               # DW_CHILDREN_yes
	.byte	110                             # DW_AT_linkage_name
	.byte	37                              # DW_FORM_strx1
	.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	63                              # DW_AT_external
	.byte	25                              # DW_FORM_flag_present
	.byte	32                              # DW_AT_inline
	.byte	33                              # DW_FORM_implicit_const
	.byte	1
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	7                               # Abbreviation Code
	.byte	5                               # DW_TAG_formal_parameter
	.byte	0                               # DW_CHILDREN_no
	.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	8                               # Abbreviation Code
	.byte	15                              # DW_TAG_pointer_type
	.byte	0                               # DW_CHILDREN_no
	.byte	73                              # DW_AT_type
	.byte	19                              # DW_FORM_ref4
	.byte	0                               # EOM(1)
	.byte	0                               # EOM(2)
	.byte	9                               # 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	122                             # DW_AT_call_all_calls
	.byte	25                              # DW_FORM_flag_present
	.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	10                              # Abbreviation Code
	.byte	5                               # DW_TAG_formal_parameter
	.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	11                              # 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	27                              # DW_FORM_addrx
	.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	87                              # DW_AT_call_column
	.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:0xa7 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	2                               # DW_AT_low_pc
	.long	.Lfunc_end1-.Lfunc_begin0       # DW_AT_high_pc
	.long	.Laddr_table_base0              # DW_AT_addr_base
	.byte	2                               # Abbrev [2] 0x23:0xb DW_TAG_variable
	.byte	3                               # DW_AT_name
	.long	46                              # DW_AT_type
                                        # DW_AT_external
	.byte	0                               # DW_AT_decl_file
	.byte	6                               # DW_AT_decl_line
	.byte	2                               # DW_AT_location
	.byte	161
	.byte	0
	.byte	3                               # Abbrev [3] 0x2e:0x4 DW_TAG_base_type
	.byte	4                               # DW_AT_name
	.byte	5                               # DW_AT_encoding
	.byte	4                               # DW_AT_byte_size
	.byte	2                               # Abbrev [2] 0x32:0xb DW_TAG_variable
	.byte	5                               # DW_AT_name
	.long	46                              # DW_AT_type
                                        # DW_AT_external
	.byte	0                               # DW_AT_decl_file
	.byte	7                               # DW_AT_decl_line
	.byte	2                               # DW_AT_location
	.byte	161
	.byte	1
	.byte	4                               # Abbrev [4] 0x3d:0x1b DW_TAG_subprogram
	.byte	2                               # DW_AT_low_pc
	.long	.Lfunc_end0-.Lfunc_begin0       # DW_AT_high_pc
	.byte	1                               # DW_AT_frame_base
	.byte	87
                                        # DW_AT_call_all_calls
	.long	88                              # DW_AT_abstract_origin
	.byte	5                               # Abbrev [5] 0x49:0x7 DW_TAG_formal_parameter
	.byte	1                               # DW_AT_location
	.byte	85
	.long	93                              # DW_AT_abstract_origin
	.byte	5                               # Abbrev [5] 0x50:0x7 DW_TAG_formal_parameter
	.byte	1                               # DW_AT_location
	.byte	84
	.long	101                             # DW_AT_abstract_origin
	.byte	0                               # End Of Children Mark
	.byte	6                               # Abbrev [6] 0x58:0x16 DW_TAG_subprogram
	.byte	6                               # DW_AT_linkage_name
	.byte	7                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	1                               # DW_AT_decl_line
                                        # DW_AT_external
                                        # DW_AT_inline
	.byte	7                               # Abbrev [7] 0x5d:0x8 DW_TAG_formal_parameter
	.byte	3                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	1                               # DW_AT_decl_line
	.long	110                             # DW_AT_type
	.byte	7                               # Abbrev [7] 0x65:0x8 DW_TAG_formal_parameter
	.byte	5                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	1                               # DW_AT_decl_line
	.long	110                             # DW_AT_type
	.byte	0                               # End Of Children Mark
	.byte	8                               # Abbrev [8] 0x6e:0x5 DW_TAG_pointer_type
	.long	46                              # DW_AT_type
	.byte	9                               # Abbrev [9] 0x73:0x31 DW_TAG_subprogram
	.byte	3                               # DW_AT_low_pc
	.long	.Lfunc_end1-.Lfunc_begin1       # DW_AT_high_pc
	.byte	1                               # DW_AT_frame_base
	.byte	87
                                        # DW_AT_call_all_calls
	.byte	8                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	8                               # DW_AT_decl_line
	.long	46                              # DW_AT_type
                                        # DW_AT_external
	.byte	10                              # Abbrev [10] 0x82:0xa DW_TAG_formal_parameter
	.byte	1                               # DW_AT_location
	.byte	85
	.byte	9                               # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	8                               # DW_AT_decl_line
	.long	46                              # DW_AT_type
	.byte	10                              # Abbrev [10] 0x8c:0xa DW_TAG_formal_parameter
	.byte	1                               # DW_AT_location
	.byte	84
	.byte	10                              # DW_AT_name
	.byte	0                               # DW_AT_decl_file
	.byte	8                               # DW_AT_decl_line
	.long	164                             # DW_AT_type
	.byte	11                              # Abbrev [11] 0x96:0xd DW_TAG_inlined_subroutine
	.long	88                              # DW_AT_abstract_origin
	.byte	3                               # DW_AT_low_pc
	.long	.Ltmp2-.Lfunc_begin1            # DW_AT_high_pc
	.byte	0                               # DW_AT_call_file
	.byte	11                              # DW_AT_call_line
	.byte	4                               # DW_AT_call_column
	.byte	0                               # End Of Children Mark
	.byte	8                               # Abbrev [8] 0xa4:0x5 DW_TAG_pointer_type
	.long	169                             # DW_AT_type
	.byte	8                               # Abbrev [8] 0xa9:0x5 DW_TAG_pointer_type
	.long	174                             # DW_AT_type
	.byte	3                               # Abbrev [3] 0xae:0x4 DW_TAG_base_type
	.byte	11                              # DW_AT_name
	.byte	6                               # DW_AT_encoding
	.byte	1                               # DW_AT_byte_size
	.byte	0                               # End Of Children Mark
.Ldebug_info_end0:
	.section	.debug_str_offsets,"",@progbits
	.long	52                              # Length of String Offsets Set
	.short	5
	.short	0
.Lstr_offsets_base0:
	.section	.debug_str,"MS",@progbits,1
.Linfo_string0:
	.asciz	"clang version 15.0.0" # string offset=0
.Linfo_string1:
	.asciz	"main.cpp"                      # string offset=134
.Linfo_string2:
	.asciz	"/testLocExprLoc" # string offset=143
.Linfo_string3:
	.asciz	"x"                             # string offset=195
.Linfo_string4:
	.asciz	"int"                           # string offset=197
.Linfo_string5:
	.asciz	"y"                             # string offset=201
.Linfo_string6:
	.asciz	"_Z3usePiS_"                    # string offset=203
.Linfo_string7:
	.asciz	"use"                           # string offset=214
.Linfo_string8:
	.asciz	"main"                          # string offset=218
.Linfo_string9:
	.asciz	"argc"                          # string offset=223
.Linfo_string10:
	.asciz	"argv"                          # string offset=228
.Linfo_string11:
	.asciz	"char"                          # string offset=233
	.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_string6
	.long	.Linfo_string7
	.long	.Linfo_string8
	.long	.Linfo_string9
	.long	.Linfo_string10
	.long	.Linfo_string11
	.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	x
	.quad	y
	.quad	.Lfunc_begin0
	.quad	.Lfunc_begin1
.Ldebug_addr_end0:
	.ident	"clang version 15.0.0"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.section	.debug_line,"",@progbits
.Lline_table_start0: