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1# clang++ -g -gdwarf-5 -emit-llvm -S helper.cpp2# llc -O0 -mtriple=x86_64-unknown-linux-gnu helper.ll3# int z = 0;4# int d = 0;5#6# int helper(int z_, int d_) {7# z += z_;8# d += d_;9# return z * d;10# }11 12 .text13 .file "helper.cpp"14 .file 0 "." "helper.cpp" md5 0xe635924a35b65444173d0c76a54b866f15 .globl _Z6helperii # -- Begin function _Z6helperii16 .p2align 4, 0x9017 .type _Z6helperii,@function18_Z6helperii: # @_Z6helperii19.Lfunc_begin0:20 .loc 0 4 0 # helper.cpp:4:021 .cfi_startproc22# %bb.0: # %entry23 pushq %rbp24 .cfi_def_cfa_offset 1625 .cfi_offset %rbp, -1626 movq %rsp, %rbp27 .cfi_def_cfa_register %rbp28 movl %edi, -4(%rbp)29 movl %esi, -8(%rbp)30.Ltmp0:31 .loc 0 5 7 prologue_end # helper.cpp:5:732 movl -4(%rbp), %eax33 .loc 0 5 4 is_stmt 0 # helper.cpp:5:434 addl z, %eax35 movl %eax, z36 .loc 0 6 7 is_stmt 1 # helper.cpp:6:737 movl -8(%rbp), %eax38 .loc 0 6 4 is_stmt 0 # helper.cpp:6:439 addl d, %eax40 movl %eax, d41 .loc 0 7 9 is_stmt 1 # helper.cpp:7:942 movl z, %eax43 .loc 0 7 11 is_stmt 0 # helper.cpp:7:1144 imull d, %eax45 .loc 0 7 2 # helper.cpp:7:246 popq %rbp47 .cfi_def_cfa %rsp, 848 retq49.Ltmp1:50.Lfunc_end0:51 .size _Z6helperii, .Lfunc_end0-_Z6helperii52 .cfi_endproc53 # -- End function54 .type z,@object # @z55 .bss56 .globl z57 .p2align 258z:59 .long 0 # 0x060 .size z, 461 62 .type d,@object # @d63 .globl d64 .p2align 265d:66 .long 0 # 0x067 .size d, 468 69 .section .debug_abbrev,"",@progbits70 .byte 1 # Abbreviation Code71 .byte 17 # DW_TAG_compile_unit72 .byte 1 # DW_CHILDREN_yes73 .byte 37 # DW_AT_producer74 .byte 37 # DW_FORM_strx175 .byte 19 # DW_AT_language76 .byte 5 # DW_FORM_data277 .byte 3 # DW_AT_name78 .byte 37 # DW_FORM_strx179 .byte 114 # DW_AT_str_offsets_base80 .byte 23 # DW_FORM_sec_offset81 .byte 16 # DW_AT_stmt_list82 .byte 23 # DW_FORM_sec_offset83 .byte 27 # DW_AT_comp_dir84 .byte 37 # DW_FORM_strx185 .byte 17 # DW_AT_low_pc86 .byte 27 # DW_FORM_addrx87 .byte 18 # DW_AT_high_pc88 .byte 6 # DW_FORM_data489 .byte 115 # DW_AT_addr_base90 .byte 23 # DW_FORM_sec_offset91 .byte 0 # EOM(1)92 .byte 0 # EOM(2)93 .byte 2 # Abbreviation Code94 .byte 52 # DW_TAG_variable95 .byte 0 # DW_CHILDREN_no96 .byte 3 # DW_AT_name97 .byte 37 # DW_FORM_strx198 .byte 73 # DW_AT_type99 .byte 19 # DW_FORM_ref4100 .byte 63 # DW_AT_external101 .byte 25 # DW_FORM_flag_present102 .byte 58 # DW_AT_decl_file103 .byte 11 # DW_FORM_data1104 .byte 59 # DW_AT_decl_line105 .byte 11 # DW_FORM_data1106 .byte 2 # DW_AT_location107 .byte 24 # DW_FORM_exprloc108 .byte 0 # EOM(1)109 .byte 0 # EOM(2)110 .byte 3 # Abbreviation Code111 .byte 36 # DW_TAG_base_type112 .byte 0 # DW_CHILDREN_no113 .byte 3 # DW_AT_name114 .byte 37 # DW_FORM_strx1115 .byte 62 # DW_AT_encoding116 .byte 11 # DW_FORM_data1117 .byte 11 # DW_AT_byte_size118 .byte 11 # DW_FORM_data1119 .byte 0 # EOM(1)120 .byte 0 # EOM(2)121 .byte 4 # Abbreviation Code122 .byte 46 # DW_TAG_subprogram123 .byte 1 # DW_CHILDREN_yes124 .byte 17 # DW_AT_low_pc125 .byte 27 # DW_FORM_addrx126 .byte 18 # DW_AT_high_pc127 .byte 6 # DW_FORM_data4128 .byte 64 # DW_AT_frame_base129 .byte 24 # DW_FORM_exprloc130 .byte 110 # DW_AT_linkage_name131 .byte 37 # DW_FORM_strx1132 .byte 3 # DW_AT_name133 .byte 37 # DW_FORM_strx1134 .byte 58 # DW_AT_decl_file135 .byte 11 # DW_FORM_data1136 .byte 59 # DW_AT_decl_line137 .byte 11 # DW_FORM_data1138 .byte 73 # DW_AT_type139 .byte 19 # DW_FORM_ref4140 .byte 63 # DW_AT_external141 .byte 25 # DW_FORM_flag_present142 .byte 0 # EOM(1)143 .byte 0 # EOM(2)144 .byte 5 # Abbreviation Code145 .byte 5 # DW_TAG_formal_parameter146 .byte 0 # DW_CHILDREN_no147 .byte 2 # DW_AT_location148 .byte 24 # DW_FORM_exprloc149 .byte 3 # DW_AT_name150 .byte 37 # DW_FORM_strx1151 .byte 58 # DW_AT_decl_file152 .byte 11 # DW_FORM_data1153 .byte 59 # DW_AT_decl_line154 .byte 11 # DW_FORM_data1155 .byte 73 # DW_AT_type156 .byte 19 # DW_FORM_ref4157 .byte 0 # EOM(1)158 .byte 0 # EOM(2)159 .byte 0 # EOM(3)160 .section .debug_info,"",@progbits161.Lcu_begin0:162 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit163.Ldebug_info_start0:164 .short 5 # DWARF version number165 .byte 1 # DWARF Unit Type166 .byte 8 # Address Size (in bytes)167 .long .debug_abbrev # Offset Into Abbrev. Section168 .byte 1 # Abbrev [1] 0xc:0x59 DW_TAG_compile_unit169 .byte 0 # DW_AT_producer170 .short 33 # DW_AT_language171 .byte 1 # DW_AT_name172 .long .Lstr_offsets_base0 # DW_AT_str_offsets_base173 .long .Lline_table_start0 # DW_AT_stmt_list174 .byte 2 # DW_AT_comp_dir175 .byte 2 # DW_AT_low_pc176 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc177 .long .Laddr_table_base0 # DW_AT_addr_base178 .byte 2 # Abbrev [2] 0x23:0xb DW_TAG_variable179 .byte 3 # DW_AT_name180 .long 46 # DW_AT_type181 # DW_AT_external182 .byte 0 # DW_AT_decl_file183 .byte 1 # DW_AT_decl_line184 .byte 2 # DW_AT_location185 .byte 161186 .byte 0187 .byte 3 # Abbrev [3] 0x2e:0x4 DW_TAG_base_type188 .byte 4 # DW_AT_name189 .byte 5 # DW_AT_encoding190 .byte 4 # DW_AT_byte_size191 .byte 2 # Abbrev [2] 0x32:0xb DW_TAG_variable192 .byte 5 # DW_AT_name193 .long 46 # DW_AT_type194 # DW_AT_external195 .byte 0 # DW_AT_decl_file196 .byte 2 # DW_AT_decl_line197 .byte 2 # DW_AT_location198 .byte 161199 .byte 1200 .byte 4 # Abbrev [4] 0x3d:0x27 DW_TAG_subprogram201 .byte 2 # DW_AT_low_pc202 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc203 .byte 1 # DW_AT_frame_base204 .byte 86205 .byte 6 # DW_AT_linkage_name206 .byte 7 # DW_AT_name207 .byte 0 # DW_AT_decl_file208 .byte 4 # DW_AT_decl_line209 .long 46 # DW_AT_type210 # DW_AT_external211 .byte 5 # Abbrev [5] 0x4d:0xb DW_TAG_formal_parameter212 .byte 2 # DW_AT_location213 .byte 145214 .byte 124215 .byte 8 # DW_AT_name216 .byte 0 # DW_AT_decl_file217 .byte 4 # DW_AT_decl_line218 .long 46 # DW_AT_type219 .byte 5 # Abbrev [5] 0x58:0xb DW_TAG_formal_parameter220 .byte 2 # DW_AT_location221 .byte 145222 .byte 120223 .byte 9 # DW_AT_name224 .byte 0 # DW_AT_decl_file225 .byte 4 # DW_AT_decl_line226 .long 46 # DW_AT_type227 .byte 0 # End Of Children Mark228 .byte 0 # End Of Children Mark229.Ldebug_info_end0:230 .section .debug_str_offsets,"",@progbits231 .long 44 # Length of String Offsets Set232 .short 5233 .short 0234.Lstr_offsets_base0:235 .section .debug_str,"MS",@progbits,1236.Linfo_string0:237 .asciz "clang version 15.0.0" # string offset=0238.Linfo_string1:239 .asciz "helper.cpp" # string offset=21240.Linfo_string2:241 .asciz "." # string offset=32242.Linfo_string3:243 .asciz "z" # string offset=34244.Linfo_string4:245 .asciz "int" # string offset=36246.Linfo_string5:247 .asciz "d" # string offset=40248.Linfo_string6:249 .asciz "_Z6helperii" # string offset=42250.Linfo_string7:251 .asciz "helper" # string offset=54252.Linfo_string8:253 .asciz "z_" # string offset=61254.Linfo_string9:255 .asciz "d_" # string offset=64256 .section .debug_str_offsets,"",@progbits257 .long .Linfo_string0258 .long .Linfo_string1259 .long .Linfo_string2260 .long .Linfo_string3261 .long .Linfo_string4262 .long .Linfo_string5263 .long .Linfo_string6264 .long .Linfo_string7265 .long .Linfo_string8266 .long .Linfo_string9267 .section .debug_addr,"",@progbits268 .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution269.Ldebug_addr_start0:270 .short 5 # DWARF version number271 .byte 8 # Address size272 .byte 0 # Segment selector size273.Laddr_table_base0:274 .quad z275 .quad d276 .quad .Lfunc_begin0277.Ldebug_addr_end0:278 .ident "clang version 15.0.0"279 .section ".note.GNU-stack","",@progbits280 .section .debug_line,"",@progbits281.Lline_table_start0:282