# clang++ -g -gdwarf-5 -emit-llvm -S helper.cpp # llc -O0 -mtriple=x86_64-unknown-linux-gnu helper.ll # int z = 0; # int d = 0; # # int helper(int z_, int d_) { # z += z_; # d += d_; # return z * d; # } .text .file "helper.cpp" .file 0 "." "helper.cpp" md5 0xe635924a35b65444173d0c76a54b866f .globl _Z6helperii # -- Begin function _Z6helperii .p2align 4, 0x90 .type _Z6helperii,@function _Z6helperii: # @_Z6helperii .Lfunc_begin0: .loc 0 4 0 # helper.cpp:4:0 .cfi_startproc # %bb.0: # %entry pushq %rbp .cfi_def_cfa_offset 16 .cfi_offset %rbp, -16 movq %rsp, %rbp .cfi_def_cfa_register %rbp movl %edi, -4(%rbp) movl %esi, -8(%rbp) .Ltmp0: .loc 0 5 7 prologue_end # helper.cpp:5:7 movl -4(%rbp), %eax .loc 0 5 4 is_stmt 0 # helper.cpp:5:4 addl z, %eax movl %eax, z .loc 0 6 7 is_stmt 1 # helper.cpp:6:7 movl -8(%rbp), %eax .loc 0 6 4 is_stmt 0 # helper.cpp:6:4 addl d, %eax movl %eax, d .loc 0 7 9 is_stmt 1 # helper.cpp:7:9 movl z, %eax .loc 0 7 11 is_stmt 0 # helper.cpp:7:11 imull d, %eax .loc 0 7 2 # helper.cpp:7:2 popq %rbp .cfi_def_cfa %rsp, 8 retq .Ltmp1: .Lfunc_end0: .size _Z6helperii, .Lfunc_end0-_Z6helperii .cfi_endproc # -- End function .type z,@object # @z .bss .globl z .p2align 2 z: .long 0 # 0x0 .size z, 4 .type d,@object # @d .globl d .p2align 2 d: .long 0 # 0x0 .size d, 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 -3815466543033299045 .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_end0-.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 "helper.dwo" # string offset=2 .section .debug_str_offsets,"",@progbits .long .Lskel_string0 .long .Lskel_string1 .section .debug_str_offsets.dwo,"e",@progbits .long 44 # Length of String Offsets Set .short 5 .short 0 .section .debug_str.dwo,"eMS",@progbits,1 .Linfo_string0: .asciz "z" # string offset=0 .Linfo_string1: .asciz "int" # string offset=2 .Linfo_string2: .asciz "d" # string offset=6 .Linfo_string3: .asciz "_Z6helperii" # string offset=8 .Linfo_string4: .asciz "helper" # string offset=20 .Linfo_string5: .asciz "z_" # string offset=27 .Linfo_string6: .asciz "d_" # string offset=30 .Linfo_string7: .asciz "clang version 15.0.0" # string offset=33 .Linfo_string8: .asciz "helper.cpp" # string offset=54 .Linfo_string9: .asciz "helper.dwo" # string offset=65 .section .debug_str_offsets.dwo,"e",@progbits .long 0 .long 2 .long 6 .long 8 .long 20 .long 27 .long 30 .long 33 .long 54 .long 65 .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 -3815466543033299045 .byte 1 # Abbrev [1] 0x14:0x48 DW_TAG_compile_unit .byte 7 # DW_AT_producer .short 33 # DW_AT_language .byte 8 # DW_AT_name .byte 9 # 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 1 # 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 2 # DW_AT_decl_line .byte 2 # DW_AT_location .byte 161 .byte 1 .byte 4 # Abbrev [4] 0x34:0x27 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 4 # DW_AT_decl_line .long 37 # DW_AT_type # DW_AT_external .byte 5 # Abbrev [5] 0x44:0xb DW_TAG_formal_parameter .byte 2 # DW_AT_location .byte 145 .byte 124 .byte 5 # DW_AT_name .byte 0 # DW_AT_decl_file .byte 4 # DW_AT_decl_line .long 37 # DW_AT_type .byte 5 # Abbrev [5] 0x4f: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 4 # DW_AT_decl_line .long 37 # DW_AT_type .byte 0 # End Of Children Mark .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 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 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 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 z .quad d .quad .Lfunc_begin0 .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 52 # DIE offset .byte 48 # Attributes: FUNCTION, EXTERNAL .asciz "helper" # External Name .long 41 # DIE offset .byte 32 # Attributes: VARIABLE, EXTERNAL .asciz "d" # External Name .long 26 # DIE offset .byte 32 # Attributes: VARIABLE, EXTERNAL .asciz "z" # 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 0 # End Mark .LpubTypes_end0: .ident "clang version 15.0.0" .section ".note.GNU-stack","",@progbits .section .debug_line,"",@progbits .Lline_table_start0: