# clang++ -g -gdwarf-5 -emit-llvm -S mainlocadddrx.cpp # llc -O0 -mtriple=x86_64-unknown-linux-gnu mainlocadddrx.ll # 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 "mainlocadddrx.cpp" .file 0 "." "mainlocadddrx.cpp" md5 0xd4fd79ce0087c4cefd089752bf2182c6 .globl _Z3usePiS_ # -- Begin function _Z3usePiS_ .p2align 4, 0x90 .type _Z3usePiS_,@function _Z3usePiS_: # @_Z3usePiS_ .Lfunc_begin0: .loc 0 1 0 # mainlocadddrx.cpp:1:0 .cfi_startproc # %bb.0: # %entry pushq %rbp .cfi_def_cfa_offset 16 .cfi_offset %rbp, -16 movq %rsp, %rbp .cfi_def_cfa_register %rbp movq %rdi, -8(%rbp) movq %rsi, -16(%rbp) .Ltmp0: .loc 0 2 2 prologue_end # mainlocadddrx.cpp:2:2 movq -8(%rbp), %rax .loc 0 2 4 is_stmt 0 # mainlocadddrx.cpp:2:4 movl (%rax), %ecx addl $4, %ecx movl %ecx, (%rax) .loc 0 3 2 is_stmt 1 # mainlocadddrx.cpp:3:2 movq -16(%rbp), %rax .loc 0 3 4 is_stmt 0 # mainlocadddrx.cpp:3:4 movl (%rax), %ecx subl $2, %ecx movl %ecx, (%rax) .loc 0 4 1 is_stmt 1 # mainlocadddrx.cpp:4:1 popq %rbp .cfi_def_cfa %rsp, 8 retq .Ltmp1: .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 # mainlocadddrx.cpp:8:0 .cfi_startproc # %bb.0: # %entry pushq %rbp .cfi_def_cfa_offset 16 .cfi_offset %rbp, -16 movq %rsp, %rbp .cfi_def_cfa_register %rbp subq $16, %rsp movl $0, -4(%rbp) movl %edi, -8(%rbp) movq %rsi, -16(%rbp) .Ltmp2: .loc 0 9 8 prologue_end # mainlocadddrx.cpp:9:8 movl -8(%rbp), %eax .loc 0 9 6 is_stmt 0 # mainlocadddrx.cpp:9:6 movl %eax, x .loc 0 10 8 is_stmt 1 # mainlocadddrx.cpp:10:8 movl -8(%rbp), %eax .loc 0 10 13 is_stmt 0 # mainlocadddrx.cpp:10:13 addl $3, %eax .loc 0 10 6 # mainlocadddrx.cpp:10:6 movl %eax, y .loc 0 11 4 is_stmt 1 # mainlocadddrx.cpp:11:4 movabsq $x, %rdi movabsq $y, %rsi callq _Z3usePiS_ .loc 0 12 11 # mainlocadddrx.cpp:12:11 movl x, %eax .loc 0 12 13 is_stmt 0 # mainlocadddrx.cpp:12:13 addl y, %eax .loc 0 12 4 # mainlocadddrx.cpp:12:4 addq $16, %rsp popq %rbp .cfi_def_cfa %rsp, 8 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 74 # DW_TAG_skeleton_unit .byte 0 # DW_CHILDREN_no .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 114 # DW_AT_str_offsets_base .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 37 # DW_FORM_strx1 .ascii "\264B" # DW_AT_GNU_pubnames .byte 25 # DW_FORM_flag_present .byte 118 # DW_AT_dwo_name .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 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 4 # DWARF Unit Type .byte 8 # Address Size (in bytes) .long .debug_abbrev # Offset Into Abbrev. Section .quad 6364283817788887055 .byte 1 # Abbrev [1] 0x14:0x14 DW_TAG_skeleton_unit .long .Lline_table_start0 # DW_AT_stmt_list .long .Lstr_offsets_base0 # DW_AT_str_offsets_base .byte 0 # DW_AT_comp_dir # DW_AT_GNU_pubnames .byte 1 # DW_AT_dwo_name .byte 2 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc .long .Laddr_table_base0 # DW_AT_addr_base .Ldebug_info_end0: .section .debug_str_offsets,"",@progbits .long 12 # Length of String Offsets Set .short 5 .short 0 .Lstr_offsets_base0: .section .debug_str,"MS",@progbits,1 .Lskel_string0: .asciz "." # string offset=0 .Lskel_string1: .asciz "mainlocadddrx.dwo" # string offset=2 .section .debug_str_offsets,"",@progbits .long .Lskel_string0 .long .Lskel_string1 .section .debug_str_offsets.dwo,"e",@progbits .long 52 # Length of String Offsets Set .short 5 .short 0 .section .debug_str.dwo,"eMS",@progbits,1 .Linfo_string0: .asciz "x" # string offset=0 .Linfo_string1: .asciz "int" # string offset=2 .Linfo_string2: .asciz "y" # string offset=6 .Linfo_string3: .asciz "_Z3usePiS_" # string offset=8 .Linfo_string4: .asciz "use" # string offset=19 .Linfo_string5: .asciz "main" # string offset=23 .Linfo_string6: .asciz "argc" # string offset=28 .Linfo_string7: .asciz "argv" # string offset=33 .Linfo_string8: .asciz "char" # string offset=38 .Linfo_string9: .asciz "clang version 15.0.0" # string offset=43 .Linfo_string10: .asciz "mainlocadddrx.cpp" # string offset=64 .Linfo_string11: .asciz "mainlocadddrx.dwo" # string offset=82 .section .debug_str_offsets.dwo,"e",@progbits .long 0 .long 2 .long 6 .long 8 .long 19 .long 23 .long 28 .long 33 .long 38 .long 43 .long 64 .long 82 .section .debug_info.dwo,"e",@progbits .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit .Ldebug_info_dwo_start0: .short 5 # DWARF version number .byte 5 # DWARF Unit Type .byte 8 # Address Size (in bytes) .long 0 # Offset Into Abbrev. Section .quad 6364283817788887055 .byte 1 # Abbrev [1] 0x14:0x7d DW_TAG_compile_unit .byte 9 # DW_AT_producer .short 33 # DW_AT_language .byte 10 # DW_AT_name .byte 11 # DW_AT_dwo_name .byte 2 # Abbrev [2] 0x1a:0xb DW_TAG_variable .byte 0 # DW_AT_name .long 37 # 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] 0x25:0x4 DW_TAG_base_type .byte 1 # DW_AT_name .byte 5 # DW_AT_encoding .byte 4 # DW_AT_byte_size .byte 2 # Abbrev [2] 0x29:0xb DW_TAG_variable .byte 2 # DW_AT_name .long 37 # 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] 0x34:0x23 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 86 .byte 3 # DW_AT_linkage_name .byte 4 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 1 # DW_AT_decl_line # DW_AT_external .byte 5 # Abbrev [5] 0x40:0xb DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 120 .byte 0 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 125 # DW_AT_type .byte 5 # Abbrev [5] 0x4b:0xb DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 112 .byte 2 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 125 # DW_AT_type .byte 0 # End Of Children Mark .byte 6 # Abbrev [6] 0x57:0x26 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 86 .byte 5 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 8 # DW_AT_decl_line .long 37 # DW_AT_type # DW_AT_external .byte 5 # Abbrev [5] 0x66:0xb DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 120 .byte 6 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 8 # DW_AT_decl_line .long 37 # DW_AT_type .byte 5 # Abbrev [5] 0x71:0xb DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 112 .byte 7 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 8 # DW_AT_decl_line .long 130 # DW_AT_type .byte 0 # End Of Children Mark .byte 7 # Abbrev [7] 0x7d:0x5 DW_TAG_pointer_type .long 37 # DW_AT_type .byte 7 # Abbrev [7] 0x82:0x5 DW_TAG_pointer_type .long 135 # DW_AT_type .byte 7 # Abbrev [7] 0x87:0x5 DW_TAG_pointer_type .long 140 # DW_AT_type .byte 3 # Abbrev [3] 0x8c:0x4 DW_TAG_base_type .byte 8 # DW_AT_name .byte 6 # DW_AT_encoding .byte 1 # DW_AT_byte_size .byte 0 # End Of Children Mark .Ldebug_info_dwo_end0: .section .debug_abbrev.dwo,"e",@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 118 # DW_AT_dwo_name .byte 37 # DW_FORM_strx1 .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 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 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 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 6 # 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 7 # 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 0 # EOM(3) .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: .section .debug_gnu_pubnames,"",@progbits .long .LpubNames_end0-.LpubNames_start0 # Length of Public Names Info .LpubNames_start0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 40 # Compilation Unit Length .long 87 # DIE offset .byte 48 # Attributes: FUNCTION, EXTERNAL .asciz "main" # External Name .long 26 # DIE offset .byte 32 # Attributes: VARIABLE, EXTERNAL .asciz "x" # External Name .long 41 # DIE offset .byte 32 # Attributes: VARIABLE, EXTERNAL .asciz "y" # External Name .long 52 # DIE offset .byte 48 # Attributes: FUNCTION, EXTERNAL .asciz "use" # External Name .long 0 # End Mark .LpubNames_end0: .section .debug_gnu_pubtypes,"",@progbits .long .LpubTypes_end0-.LpubTypes_start0 # Length of Public Types Info .LpubTypes_start0: .short 2 # DWARF Version .long .Lcu_begin0 # Offset of Compilation Unit Info .long 40 # Compilation Unit Length .long 37 # DIE offset .byte 144 # Attributes: TYPE, STATIC .asciz "int" # External Name .long 140 # DIE offset .byte 144 # Attributes: TYPE, STATIC .asciz "char" # External Name .long 0 # End Mark .LpubTypes_end0: .ident "clang version 15.0.0" .section ".note.GNU-stack","",@progbits .section .debug_line,"",@progbits .Lline_table_start0: