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1# clang++ -g -gdwarf-5 -emit-llvm -S helper.cpp2# llc -O2 -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 #DEBUG_VALUE: helper:z_ <- $edi24 #DEBUG_VALUE: helper:d_ <- $esi25 movl %esi, %eax26.Ltmp0:27 .loc 0 5 4 prologue_end # helper.cpp:5:428 addl z(%rip), %edi29.Ltmp1:30 #DEBUG_VALUE: helper:z_ <- [DW_OP_LLVM_entry_value 1] $edi31 .loc 0 6 4 # helper.cpp:6:432 addl d(%rip), %eax33 .loc 0 5 4 # helper.cpp:5:434 movl %edi, z(%rip)35 .loc 0 6 4 # helper.cpp:6:436 movl %eax, d(%rip)37 .loc 0 7 11 # helper.cpp:7:1138 imull %edi, %eax39 .loc 0 7 2 is_stmt 0 # helper.cpp:7:240 retq41.Ltmp2:42.Lfunc_end0:43 .size _Z6helperii, .Lfunc_end0-_Z6helperii44 .cfi_endproc45 # -- End function46 .type z,@object # @z47 .bss48 .globl z49 .p2align 250z:51 .long 0 # 0x052 .size z, 453 54 .type d,@object # @d55 .globl d56 .p2align 257d:58 .long 0 # 0x059 .size d, 460 61 .section .debug_loclists.dwo,"e",@progbits62 .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length63.Ldebug_list_header_start0:64 .short 5 # Version65 .byte 8 # Address size66 .byte 0 # Segment selector size67 .long 1 # Offset entry count68.Lloclists_table_base0:69 .long .Ldebug_loc0-.Lloclists_table_base070.Ldebug_loc0:71 .byte 1 # DW_LLE_base_addressx72 .byte 2 # base address index73 .byte 4 # DW_LLE_offset_pair74 .uleb128 .Lfunc_begin0-.Lfunc_begin0 # starting offset75 .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset76 .byte 1 # Loc expr size77 .byte 85 # super-register DW_OP_reg578 .byte 4 # DW_LLE_offset_pair79 .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset80 .uleb128 .Lfunc_end0-.Lfunc_begin0 # ending offset81 .byte 4 # Loc expr size82 .byte 163 # DW_OP_entry_value83 .byte 1 # 184 .byte 85 # super-register DW_OP_reg585 .byte 159 # DW_OP_stack_value86 .byte 0 # DW_LLE_end_of_list87.Ldebug_list_header_end0:88 .section .debug_abbrev,"",@progbits89 .byte 1 # Abbreviation Code90 .byte 74 # DW_TAG_skeleton_unit91 .byte 0 # DW_CHILDREN_no92 .byte 16 # DW_AT_stmt_list93 .byte 23 # DW_FORM_sec_offset94 .byte 114 # DW_AT_str_offsets_base95 .byte 23 # DW_FORM_sec_offset96 .byte 27 # DW_AT_comp_dir97 .byte 37 # DW_FORM_strx198 .byte 118 # DW_AT_dwo_name99 .byte 37 # DW_FORM_strx1100 .byte 17 # DW_AT_low_pc101 .byte 27 # DW_FORM_addrx102 .byte 18 # DW_AT_high_pc103 .byte 6 # DW_FORM_data4104 .byte 115 # DW_AT_addr_base105 .byte 23 # DW_FORM_sec_offset106 .byte 0 # EOM(1)107 .byte 0 # EOM(2)108 .byte 0 # EOM(3)109 .section .debug_info,"",@progbits110.Lcu_begin0:111 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit112.Ldebug_info_start0:113 .short 5 # DWARF version number114 .byte 4 # DWARF Unit Type115 .byte 8 # Address Size (in bytes)116 .long .debug_abbrev # Offset Into Abbrev. Section117 .quad 9211989493039430794118 .byte 1 # Abbrev [1] 0x14:0x14 DW_TAG_skeleton_unit119 .long .Lline_table_start0 # DW_AT_stmt_list120 .long .Lstr_offsets_base0 # DW_AT_str_offsets_base121 .byte 0 # DW_AT_comp_dir122 .byte 1 # DW_AT_dwo_name123 .byte 2 # DW_AT_low_pc124 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc125 .long .Laddr_table_base0 # DW_AT_addr_base126.Ldebug_info_end0:127 .section .debug_str_offsets,"",@progbits128 .long 12 # Length of String Offsets Set129 .short 5130 .short 0131.Lstr_offsets_base0:132 .section .debug_str,"MS",@progbits,1133.Lskel_string0:134 .asciz "." # string offset=0135.Lskel_string1:136 .asciz "helper.dwo" # string offset=2137 .section .debug_str_offsets,"",@progbits138 .long .Lskel_string0139 .long .Lskel_string1140 .section .debug_str_offsets.dwo,"e",@progbits141 .long 44 # Length of String Offsets Set142 .short 5143 .short 0144 .section .debug_str.dwo,"eMS",@progbits,1145.Linfo_string0:146 .asciz "z" # string offset=0147.Linfo_string1:148 .asciz "int" # string offset=2149.Linfo_string2:150 .asciz "d" # string offset=6151.Linfo_string3:152 .asciz "_Z6helperii" # string offset=8153.Linfo_string4:154 .asciz "helper" # string offset=20155.Linfo_string5:156 .asciz "z_" # string offset=27157.Linfo_string6:158 .asciz "d_" # string offset=30159.Linfo_string7:160 .asciz "clang version 15.0.0" # string offset=33161.Linfo_string8:162 .asciz "helper.cpp" # string offset=54163.Linfo_string9:164 .asciz "helper.dwo" # string offset=65165 .section .debug_str_offsets.dwo,"e",@progbits166 .long 0167 .long 2168 .long 6169 .long 8170 .long 20171 .long 27172 .long 30173 .long 33174 .long 54175 .long 65176 .section .debug_info.dwo,"e",@progbits177 .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit178.Ldebug_info_dwo_start0:179 .short 5 # DWARF version number180 .byte 5 # DWARF Unit Type181 .byte 8 # Address Size (in bytes)182 .long 0 # Offset Into Abbrev. Section183 .quad 9211989493039430794184 .byte 1 # Abbrev [1] 0x14:0x45 DW_TAG_compile_unit185 .byte 7 # DW_AT_producer186 .short 33 # DW_AT_language187 .byte 8 # DW_AT_name188 .byte 9 # DW_AT_dwo_name189 .byte 2 # Abbrev [2] 0x1a:0xb DW_TAG_variable190 .byte 0 # DW_AT_name191 .long 37 # DW_AT_type192 # DW_AT_external193 .byte 0 # DW_AT_decl_file194 .byte 1 # DW_AT_decl_line195 .byte 2 # DW_AT_location196 .byte 161197 .byte 0198 .byte 3 # Abbrev [3] 0x25:0x4 DW_TAG_base_type199 .byte 1 # DW_AT_name200 .byte 5 # DW_AT_encoding201 .byte 4 # DW_AT_byte_size202 .byte 2 # Abbrev [2] 0x29:0xb DW_TAG_variable203 .byte 2 # DW_AT_name204 .long 37 # DW_AT_type205 # DW_AT_external206 .byte 0 # DW_AT_decl_file207 .byte 2 # DW_AT_decl_line208 .byte 2 # DW_AT_location209 .byte 161210 .byte 1211 .byte 4 # Abbrev [4] 0x34:0x24 DW_TAG_subprogram212 .byte 2 # DW_AT_low_pc213 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc214 .byte 1 # DW_AT_frame_base215 .byte 87216 # DW_AT_call_all_calls217 .byte 3 # DW_AT_linkage_name218 .byte 4 # DW_AT_name219 .byte 0 # DW_AT_decl_file220 .byte 4 # DW_AT_decl_line221 .long 37 # DW_AT_type222 # DW_AT_external223 .byte 5 # Abbrev [5] 0x44:0x9 DW_TAG_formal_parameter224 .byte 0 # DW_AT_location225 .byte 5 # DW_AT_name226 .byte 0 # DW_AT_decl_file227 .byte 4 # DW_AT_decl_line228 .long 37 # DW_AT_type229 .byte 6 # Abbrev [6] 0x4d:0xa DW_TAG_formal_parameter230 .byte 1 # DW_AT_location231 .byte 84232 .byte 6 # DW_AT_name233 .byte 0 # DW_AT_decl_file234 .byte 4 # DW_AT_decl_line235 .long 37 # DW_AT_type236 .byte 0 # End Of Children Mark237 .byte 0 # End Of Children Mark238.Ldebug_info_dwo_end0:239 .section .debug_abbrev.dwo,"e",@progbits240 .byte 1 # Abbreviation Code241 .byte 17 # DW_TAG_compile_unit242 .byte 1 # DW_CHILDREN_yes243 .byte 37 # DW_AT_producer244 .byte 37 # DW_FORM_strx1245 .byte 19 # DW_AT_language246 .byte 5 # DW_FORM_data2247 .byte 3 # DW_AT_name248 .byte 37 # DW_FORM_strx1249 .byte 118 # DW_AT_dwo_name250 .byte 37 # DW_FORM_strx1251 .byte 0 # EOM(1)252 .byte 0 # EOM(2)253 .byte 2 # Abbreviation Code254 .byte 52 # DW_TAG_variable255 .byte 0 # DW_CHILDREN_no256 .byte 3 # DW_AT_name257 .byte 37 # DW_FORM_strx1258 .byte 73 # DW_AT_type259 .byte 19 # DW_FORM_ref4260 .byte 63 # DW_AT_external261 .byte 25 # DW_FORM_flag_present262 .byte 58 # DW_AT_decl_file263 .byte 11 # DW_FORM_data1264 .byte 59 # DW_AT_decl_line265 .byte 11 # DW_FORM_data1266 .byte 2 # DW_AT_location267 .byte 24 # DW_FORM_exprloc268 .byte 0 # EOM(1)269 .byte 0 # EOM(2)270 .byte 3 # Abbreviation Code271 .byte 36 # DW_TAG_base_type272 .byte 0 # DW_CHILDREN_no273 .byte 3 # DW_AT_name274 .byte 37 # DW_FORM_strx1275 .byte 62 # DW_AT_encoding276 .byte 11 # DW_FORM_data1277 .byte 11 # DW_AT_byte_size278 .byte 11 # DW_FORM_data1279 .byte 0 # EOM(1)280 .byte 0 # EOM(2)281 .byte 4 # Abbreviation Code282 .byte 46 # DW_TAG_subprogram283 .byte 1 # DW_CHILDREN_yes284 .byte 17 # DW_AT_low_pc285 .byte 27 # DW_FORM_addrx286 .byte 18 # DW_AT_high_pc287 .byte 6 # DW_FORM_data4288 .byte 64 # DW_AT_frame_base289 .byte 24 # DW_FORM_exprloc290 .byte 122 # DW_AT_call_all_calls291 .byte 25 # DW_FORM_flag_present292 .byte 110 # DW_AT_linkage_name293 .byte 37 # DW_FORM_strx1294 .byte 3 # DW_AT_name295 .byte 37 # DW_FORM_strx1296 .byte 58 # DW_AT_decl_file297 .byte 11 # DW_FORM_data1298 .byte 59 # DW_AT_decl_line299 .byte 11 # DW_FORM_data1300 .byte 73 # DW_AT_type301 .byte 19 # DW_FORM_ref4302 .byte 63 # DW_AT_external303 .byte 25 # DW_FORM_flag_present304 .byte 0 # EOM(1)305 .byte 0 # EOM(2)306 .byte 5 # Abbreviation Code307 .byte 5 # DW_TAG_formal_parameter308 .byte 0 # DW_CHILDREN_no309 .byte 2 # DW_AT_location310 .byte 34 # DW_FORM_loclistx311 .byte 3 # DW_AT_name312 .byte 37 # DW_FORM_strx1313 .byte 58 # DW_AT_decl_file314 .byte 11 # DW_FORM_data1315 .byte 59 # DW_AT_decl_line316 .byte 11 # DW_FORM_data1317 .byte 73 # DW_AT_type318 .byte 19 # DW_FORM_ref4319 .byte 0 # EOM(1)320 .byte 0 # EOM(2)321 .byte 6 # Abbreviation Code322 .byte 5 # DW_TAG_formal_parameter323 .byte 0 # DW_CHILDREN_no324 .byte 2 # DW_AT_location325 .byte 24 # DW_FORM_exprloc326 .byte 3 # DW_AT_name327 .byte 37 # DW_FORM_strx1328 .byte 58 # DW_AT_decl_file329 .byte 11 # DW_FORM_data1330 .byte 59 # DW_AT_decl_line331 .byte 11 # DW_FORM_data1332 .byte 73 # DW_AT_type333 .byte 19 # DW_FORM_ref4334 .byte 0 # EOM(1)335 .byte 0 # EOM(2)336 .byte 0 # EOM(3)337 .section .debug_addr,"",@progbits338 .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution339.Ldebug_addr_start0:340 .short 5 # DWARF version number341 .byte 8 # Address size342 .byte 0 # Segment selector size343.Laddr_table_base0:344 .quad z345 .quad d346 .quad .Lfunc_begin0347.Ldebug_addr_end0:348 .ident "clang version 15.0.0"349 .section ".note.GNU-stack","",@progbits350 .section .debug_line,"",@progbits351.Lline_table_start0:352