1# clang++ -g -gdwarf-4 -emit-llvm -S helper.cpp 2# llc -O0 -mtriple=x86_64-unknown-linux-gnu helper.ll 3# 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 .text 13 .file "helper.cpp" 14 .file 1 "." "helper.cpp" 15 .globl _Z6helperii # -- Begin function _Z6helperii 16 .p2align 4, 0x90 17 .type _Z6helperii,@function 18_Z6helperii: # @_Z6helperii 19.Lfunc_begin0: 20 .loc 1 4 0 # helper.cpp:4:0 21 .cfi_startproc 22# %bb.0: # %entry 23 pushq %rbp 24 .cfi_def_cfa_offset 16 25 .cfi_offset %rbp, -16 26 movq %rsp, %rbp 27 .cfi_def_cfa_register %rbp 28 movl %edi, -4(%rbp) 29 movl %esi, -8(%rbp) 30.Ltmp0: 31 .loc 1 5 7 prologue_end # helper.cpp:5:7 32 movl -4(%rbp), %eax 33 .loc 1 5 4 is_stmt 0 # helper.cpp:5:4 34 addl z, %eax 35 movl %eax, z 36 .loc 1 6 7 is_stmt 1 # helper.cpp:6:7 37 movl -8(%rbp), %eax 38 .loc 1 6 4 is_stmt 0 # helper.cpp:6:4 39 addl d, %eax 40 movl %eax, d 41 .loc 1 7 9 is_stmt 1 # helper.cpp:7:9 42 movl z, %eax 43 .loc 1 7 11 is_stmt 0 # helper.cpp:7:11 44 imull d, %eax 45 .loc 1 7 2 # helper.cpp:7:2 46 popq %rbp 47 .cfi_def_cfa %rsp, 8 48 retq 49.Ltmp1: 50.Lfunc_end0: 51 .size _Z6helperii, .Lfunc_end0-_Z6helperii 52 .cfi_endproc 53 # -- End function 54 .type z,@object # @z 55 .bss 56 .globl z 57 .p2align 2 58z: 59 .long 0 # 0x0 60 .size z, 4 61 62 .type d,@object # @d 63 .globl d 64 .p2align 2 65d: 66 .long 0 # 0x0 67 .size d, 4 68 69 .section .debug_abbrev,"",@progbits 70 .byte 1 # Abbreviation Code 71 .byte 17 # DW_TAG_compile_unit 72 .byte 0 # DW_CHILDREN_no 73 .byte 16 # DW_AT_stmt_list 74 .byte 23 # DW_FORM_sec_offset 75 .byte 27 # DW_AT_comp_dir 76 .byte 14 # DW_FORM_strp 77 .ascii "\260B" # DW_AT_GNU_dwo_name 78 .byte 14 # DW_FORM_strp 79 .ascii "\261B" # DW_AT_GNU_dwo_id 80 .byte 7 # DW_FORM_data8 81 .byte 17 # DW_AT_low_pc 82 .byte 1 # DW_FORM_addr 83 .byte 18 # DW_AT_high_pc 84 .byte 6 # DW_FORM_data4 85 .ascii "\263B" # DW_AT_GNU_addr_base 86 .byte 23 # DW_FORM_sec_offset 87 .byte 0 # EOM(1) 88 .byte 0 # EOM(2) 89 .byte 0 # EOM(3) 90 .section .debug_info,"",@progbits 91.Lcu_begin0: 92 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit 93.Ldebug_info_start0: 94 .short 4 # DWARF version number 95 .long .debug_abbrev # Offset Into Abbrev. Section 96 .byte 8 # Address Size (in bytes) 97 .byte 1 # Abbrev [1] 0xb:0x25 DW_TAG_compile_unit 98 .long .Lline_table_start0 # DW_AT_stmt_list 99 .long .Lskel_string0 # DW_AT_comp_dir 100 .long .Lskel_string1 # DW_AT_GNU_dwo_name 101 .quad 9133088002243470176 # DW_AT_GNU_dwo_id 102 .quad .Lfunc_begin0 # DW_AT_low_pc 103 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 104 .long .Laddr_table_base0 # DW_AT_GNU_addr_base 105.Ldebug_info_end0: 106 .section .debug_str,"MS",@progbits,1 107.Lskel_string0: 108 .asciz "." # string offset=0 109.Lskel_string1: 110 .asciz "helper.dwo" # string offset=2 111 .section .debug_str.dwo,"eMS",@progbits,1 112.Linfo_string0: 113 .asciz "z" # string offset=0 114.Linfo_string1: 115 .asciz "int" # string offset=2 116.Linfo_string2: 117 .asciz "d" # string offset=6 118.Linfo_string3: 119 .asciz "_Z6helperii" # string offset=8 120.Linfo_string4: 121 .asciz "helper" # string offset=20 122.Linfo_string5: 123 .asciz "z_" # string offset=27 124.Linfo_string6: 125 .asciz "d_" # string offset=30 126.Linfo_string7: 127 .asciz "clang version 15.0.0" # string offset=33 128.Linfo_string8: 129 .asciz "helper.cpp" # string offset=54 130.Linfo_string9: 131 .asciz "helper.dwo" # string offset=65 132 .section .debug_str_offsets.dwo,"e",@progbits 133 .long 0 134 .long 2 135 .long 6 136 .long 8 137 .long 20 138 .long 27 139 .long 30 140 .long 33 141 .long 54 142 .long 65 143 .section .debug_info.dwo,"e",@progbits 144 .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit 145.Ldebug_info_dwo_start0: 146 .short 4 # DWARF version number 147 .long 0 # Offset Into Abbrev. Section 148 .byte 8 # Address Size (in bytes) 149 .byte 1 # Abbrev [1] 0xb:0x50 DW_TAG_compile_unit 150 .byte 7 # DW_AT_producer 151 .short 33 # DW_AT_language 152 .byte 8 # DW_AT_name 153 .byte 9 # DW_AT_GNU_dwo_name 154 .quad 9133088002243470176 # DW_AT_GNU_dwo_id 155 .byte 2 # Abbrev [2] 0x19:0xb DW_TAG_variable 156 .byte 0 # DW_AT_name 157 .long 36 # DW_AT_type 158 # DW_AT_external 159 .byte 1 # DW_AT_decl_file 160 .byte 1 # DW_AT_decl_line 161 .byte 2 # DW_AT_location 162 .byte 251 163 .byte 0 164 .byte 3 # Abbrev [3] 0x24:0x4 DW_TAG_base_type 165 .byte 1 # DW_AT_name 166 .byte 5 # DW_AT_encoding 167 .byte 4 # DW_AT_byte_size 168 .byte 2 # Abbrev [2] 0x28:0xb DW_TAG_variable 169 .byte 2 # DW_AT_name 170 .long 36 # DW_AT_type 171 # DW_AT_external 172 .byte 1 # DW_AT_decl_file 173 .byte 2 # DW_AT_decl_line 174 .byte 2 # DW_AT_location 175 .byte 251 176 .byte 1 177 .byte 4 # Abbrev [4] 0x33:0x27 DW_TAG_subprogram 178 .byte 2 # DW_AT_low_pc 179 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 180 .byte 1 # DW_AT_frame_base 181 .byte 86 182 .byte 3 # DW_AT_linkage_name 183 .byte 4 # DW_AT_name 184 .byte 1 # DW_AT_decl_file 185 .byte 4 # DW_AT_decl_line 186 .long 36 # DW_AT_type 187 # DW_AT_external 188 .byte 5 # Abbrev [5] 0x43:0xb DW_TAG_formal_parameter 189 .byte 2 # DW_AT_location 190 .byte 145 191 .byte 124 192 .byte 5 # DW_AT_name 193 .byte 1 # DW_AT_decl_file 194 .byte 4 # DW_AT_decl_line 195 .long 36 # DW_AT_type 196 .byte 5 # Abbrev [5] 0x4e:0xb DW_TAG_formal_parameter 197 .byte 2 # DW_AT_location 198 .byte 145 199 .byte 120 200 .byte 6 # DW_AT_name 201 .byte 1 # DW_AT_decl_file 202 .byte 4 # DW_AT_decl_line 203 .long 36 # DW_AT_type 204 .byte 0 # End Of Children Mark 205 .byte 0 # End Of Children Mark 206.Ldebug_info_dwo_end0: 207 .section .debug_abbrev.dwo,"e",@progbits 208 .byte 1 # Abbreviation Code 209 .byte 17 # DW_TAG_compile_unit 210 .byte 1 # DW_CHILDREN_yes 211 .byte 37 # DW_AT_producer 212 .ascii "\202>" # DW_FORM_GNU_str_index 213 .byte 19 # DW_AT_language 214 .byte 5 # DW_FORM_data2 215 .byte 3 # DW_AT_name 216 .ascii "\202>" # DW_FORM_GNU_str_index 217 .ascii "\260B" # DW_AT_GNU_dwo_name 218 .ascii "\202>" # DW_FORM_GNU_str_index 219 .ascii "\261B" # DW_AT_GNU_dwo_id 220 .byte 7 # DW_FORM_data8 221 .byte 0 # EOM(1) 222 .byte 0 # EOM(2) 223 .byte 2 # Abbreviation Code 224 .byte 52 # DW_TAG_variable 225 .byte 0 # DW_CHILDREN_no 226 .byte 3 # DW_AT_name 227 .ascii "\202>" # DW_FORM_GNU_str_index 228 .byte 73 # DW_AT_type 229 .byte 19 # DW_FORM_ref4 230 .byte 63 # DW_AT_external 231 .byte 25 # DW_FORM_flag_present 232 .byte 58 # DW_AT_decl_file 233 .byte 11 # DW_FORM_data1 234 .byte 59 # DW_AT_decl_line 235 .byte 11 # DW_FORM_data1 236 .byte 2 # DW_AT_location 237 .byte 24 # DW_FORM_exprloc 238 .byte 0 # EOM(1) 239 .byte 0 # EOM(2) 240 .byte 3 # Abbreviation Code 241 .byte 36 # DW_TAG_base_type 242 .byte 0 # DW_CHILDREN_no 243 .byte 3 # DW_AT_name 244 .ascii "\202>" # DW_FORM_GNU_str_index 245 .byte 62 # DW_AT_encoding 246 .byte 11 # DW_FORM_data1 247 .byte 11 # DW_AT_byte_size 248 .byte 11 # DW_FORM_data1 249 .byte 0 # EOM(1) 250 .byte 0 # EOM(2) 251 .byte 4 # Abbreviation Code 252 .byte 46 # DW_TAG_subprogram 253 .byte 1 # DW_CHILDREN_yes 254 .byte 17 # DW_AT_low_pc 255 .ascii "\201>" # DW_FORM_GNU_addr_index 256 .byte 18 # DW_AT_high_pc 257 .byte 6 # DW_FORM_data4 258 .byte 64 # DW_AT_frame_base 259 .byte 24 # DW_FORM_exprloc 260 .byte 110 # DW_AT_linkage_name 261 .ascii "\202>" # DW_FORM_GNU_str_index 262 .byte 3 # DW_AT_name 263 .ascii "\202>" # DW_FORM_GNU_str_index 264 .byte 58 # DW_AT_decl_file 265 .byte 11 # DW_FORM_data1 266 .byte 59 # DW_AT_decl_line 267 .byte 11 # DW_FORM_data1 268 .byte 73 # DW_AT_type 269 .byte 19 # DW_FORM_ref4 270 .byte 63 # DW_AT_external 271 .byte 25 # DW_FORM_flag_present 272 .byte 0 # EOM(1) 273 .byte 0 # EOM(2) 274 .byte 5 # Abbreviation Code 275 .byte 5 # DW_TAG_formal_parameter 276 .byte 0 # DW_CHILDREN_no 277 .byte 2 # DW_AT_location 278 .byte 24 # DW_FORM_exprloc 279 .byte 3 # DW_AT_name 280 .ascii "\202>" # DW_FORM_GNU_str_index 281 .byte 58 # DW_AT_decl_file 282 .byte 11 # DW_FORM_data1 283 .byte 59 # DW_AT_decl_line 284 .byte 11 # DW_FORM_data1 285 .byte 73 # DW_AT_type 286 .byte 19 # DW_FORM_ref4 287 .byte 0 # EOM(1) 288 .byte 0 # EOM(2) 289 .byte 0 # EOM(3) 290 .section .debug_addr,"",@progbits 291.Laddr_table_base0: 292 .quad z 293 .quad d 294 .quad .Lfunc_begin0 295 .ident "clang version 15.0.0" 296 .section ".note.GNU-stack","",@progbits 297 .section .debug_line,"",@progbits 298.Lline_table_start0: 299