1# void use(int * x, int * y) { 2# *x += 4; 3# *y -= 2; 4# } 5# 6# extern int fooVar; 7# int main(int argc, char *argv[]) { 8# int x = argc; 9# int y = fooVar + 3; 10# use(&x, &y); 11# return x + y; 12# } 13 14 .text 15 .file "main.cpp" 16 .globl _Z3usePiS_ # -- Begin function _Z3usePiS_ 17 .p2align 4, 0x90 18 .type _Z3usePiS_,@function 19_Z3usePiS_: # @_Z3usePiS_ 20.Lfunc_begin0: 21 .file 0 "." "main.cpp" md5 0x0df8b93231613cae17dbf82c0897c3b3 22 .loc 0 1 0 # main.cpp:1:0 23 .cfi_startproc 24# %bb.0: # %entry 25 #DEBUG_VALUE: use:x <- $rdi 26 #DEBUG_VALUE: use:y <- $rsi 27 .loc 0 2 6 prologue_end # main.cpp:2:6 28 addl $4, (%rdi) 29 .loc 0 3 6 # main.cpp:3:6 30 addl $-2, (%rsi) 31 .loc 0 4 1 # main.cpp:4:1 32 retq 33.Ltmp0: 34.Lfunc_end0: 35 .size _Z3usePiS_, .Lfunc_end0-_Z3usePiS_ 36 .cfi_endproc 37 # -- End function 38 .globl main # -- Begin function main 39 .p2align 4, 0x90 40 .type main,@function 41main: # @main 42.Lfunc_begin1: 43 .loc 0 7 0 # main.cpp:7:0 44 .cfi_startproc 45# %bb.0: # %entry 46 #DEBUG_VALUE: main:argc <- $edi 47 #DEBUG_VALUE: main:argv <- $rsi 48 #DEBUG_VALUE: main:x <- $edi 49 # kill: def $edi killed $edi def $rdi 50 .loc 0 9 13 prologue_end # main.cpp:9:13 51 movq fooVar@GOTPCREL(%rip), %rax 52 movl (%rax), %eax 53.Ltmp1: 54 #DEBUG_VALUE: main:y <- [DW_OP_plus_uconst 3, DW_OP_stack_value] $eax 55 #DEBUG_VALUE: main:y <- [DW_OP_plus_uconst 1, DW_OP_stack_value] $eax 56 #DEBUG_VALUE: main:x <- [DW_OP_plus_uconst 4, DW_OP_stack_value] $edi 57 .loc 0 11 14 # main.cpp:11:14 58 addl %edi, %eax 59.Ltmp2: 60 addl $5, %eax 61 .loc 0 11 5 is_stmt 0 # main.cpp:11:5 62 retq 63.Ltmp3: 64.Lfunc_end1: 65 .size main, .Lfunc_end1-main 66 .cfi_endproc 67 # -- End function 68 .section .debug_loclists,"",@progbits 69 .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length 70.Ldebug_list_header_start0: 71 .short 5 # Version 72 .byte 8 # Address size 73 .byte 0 # Segment selector size 74 .long 2 # Offset entry count 75.Lloclists_table_base0: 76 .long .Ldebug_loc0-.Lloclists_table_base0 77 .long .Ldebug_loc1-.Lloclists_table_base0 78.Ldebug_loc0: 79 .byte 4 # DW_LLE_offset_pair 80 .uleb128 .Lfunc_begin1-.Lfunc_begin0 # starting offset 81 .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset 82 .byte 1 # Loc expr size 83 .byte 85 # super-register DW_OP_reg5 84 .byte 4 # DW_LLE_offset_pair 85 .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset 86 .uleb128 .Lfunc_end1-.Lfunc_begin0 # ending offset 87 .byte 10 # Loc expr size 88 .byte 117 # DW_OP_breg5 89 .byte 4 # 4 90 .byte 16 # DW_OP_constu 91 .byte 255 # 4294967295 92 .byte 255 # 93 .byte 255 # 94 .byte 255 # 95 .byte 15 # 96 .byte 26 # DW_OP_and 97 .byte 159 # DW_OP_stack_value 98 .byte 0 # DW_LLE_end_of_list 99.Ldebug_loc1: 100 .byte 4 # DW_LLE_offset_pair 101 .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset 102 .uleb128 .Ltmp2-.Lfunc_begin0 # ending offset 103 .byte 10 # Loc expr size 104 .byte 112 # DW_OP_breg0 105 .byte 1 # 1 106 .byte 16 # DW_OP_constu 107 .byte 255 # 4294967295 108 .byte 255 # 109 .byte 255 # 110 .byte 255 # 111 .byte 15 # 112 .byte 26 # DW_OP_and 113 .byte 159 # DW_OP_stack_value 114 .byte 0 # DW_LLE_end_of_list 115.Ldebug_list_header_end0: 116 .section .debug_abbrev,"",@progbits 117 .byte 1 # Abbreviation Code 118 .byte 17 # DW_TAG_compile_unit 119 .byte 1 # DW_CHILDREN_yes 120 .byte 37 # DW_AT_producer 121 .byte 37 # DW_FORM_strx1 122 .byte 19 # DW_AT_language 123 .byte 5 # DW_FORM_data2 124 .byte 3 # DW_AT_name 125 .byte 37 # DW_FORM_strx1 126 .byte 114 # DW_AT_str_offsets_base 127 .byte 23 # DW_FORM_sec_offset 128 .byte 16 # DW_AT_stmt_list 129 .byte 23 # DW_FORM_sec_offset 130 .byte 27 # DW_AT_comp_dir 131 .byte 37 # DW_FORM_strx1 132 .byte 17 # DW_AT_low_pc 133 .byte 27 # DW_FORM_addrx 134 .byte 18 # DW_AT_high_pc 135 .byte 6 # DW_FORM_data4 136 .byte 115 # DW_AT_addr_base 137 .byte 23 # DW_FORM_sec_offset 138 .byte 0 # EOM(1) 139 .byte 0 # EOM(2) 140 .byte 2 # Abbreviation Code 141 .byte 46 # DW_TAG_subprogram 142 .byte 1 # DW_CHILDREN_yes 143 .byte 17 # DW_AT_low_pc 144 .byte 27 # DW_FORM_addrx 145 .byte 18 # DW_AT_high_pc 146 .byte 6 # DW_FORM_data4 147 .byte 64 # DW_AT_frame_base 148 .byte 24 # DW_FORM_exprloc 149 .byte 122 # DW_AT_call_all_calls 150 .byte 25 # DW_FORM_flag_present 151 .byte 110 # DW_AT_linkage_name 152 .byte 37 # DW_FORM_strx1 153 .byte 3 # DW_AT_name 154 .byte 37 # DW_FORM_strx1 155 .byte 58 # DW_AT_decl_file 156 .byte 11 # DW_FORM_data1 157 .byte 59 # DW_AT_decl_line 158 .byte 11 # DW_FORM_data1 159 .byte 63 # DW_AT_external 160 .byte 25 # DW_FORM_flag_present 161 .byte 0 # EOM(1) 162 .byte 0 # EOM(2) 163 .byte 3 # Abbreviation Code 164 .byte 5 # DW_TAG_formal_parameter 165 .byte 0 # DW_CHILDREN_no 166 .byte 2 # DW_AT_location 167 .byte 24 # DW_FORM_exprloc 168 .byte 3 # DW_AT_name 169 .byte 37 # DW_FORM_strx1 170 .byte 58 # DW_AT_decl_file 171 .byte 11 # DW_FORM_data1 172 .byte 59 # DW_AT_decl_line 173 .byte 11 # DW_FORM_data1 174 .byte 73 # DW_AT_type 175 .byte 19 # DW_FORM_ref4 176 .byte 0 # EOM(1) 177 .byte 0 # EOM(2) 178 .byte 4 # Abbreviation Code 179 .byte 46 # DW_TAG_subprogram 180 .byte 1 # DW_CHILDREN_yes 181 .byte 17 # DW_AT_low_pc 182 .byte 27 # DW_FORM_addrx 183 .byte 18 # DW_AT_high_pc 184 .byte 6 # DW_FORM_data4 185 .byte 64 # DW_AT_frame_base 186 .byte 24 # DW_FORM_exprloc 187 .byte 122 # DW_AT_call_all_calls 188 .byte 25 # DW_FORM_flag_present 189 .byte 3 # DW_AT_name 190 .byte 37 # DW_FORM_strx1 191 .byte 58 # DW_AT_decl_file 192 .byte 11 # DW_FORM_data1 193 .byte 59 # DW_AT_decl_line 194 .byte 11 # DW_FORM_data1 195 .byte 73 # DW_AT_type 196 .byte 19 # DW_FORM_ref4 197 .byte 63 # DW_AT_external 198 .byte 25 # DW_FORM_flag_present 199 .byte 0 # EOM(1) 200 .byte 0 # EOM(2) 201 .byte 5 # Abbreviation Code 202 .byte 52 # DW_TAG_variable 203 .byte 0 # DW_CHILDREN_no 204 .byte 2 # DW_AT_location 205 .byte 23 # DW_FORM_sec_offset 206 .byte 3 # DW_AT_name 207 .byte 37 # DW_FORM_strx1 208 .byte 58 # DW_AT_decl_file 209 .byte 11 # DW_FORM_data1 210 .byte 59 # DW_AT_decl_line 211 .byte 11 # DW_FORM_data1 212 .byte 73 # DW_AT_type 213 .byte 19 # DW_FORM_ref4 214 .byte 0 # EOM(1) 215 .byte 0 # EOM(2) 216 .byte 6 # Abbreviation Code 217 .byte 36 # DW_TAG_base_type 218 .byte 0 # DW_CHILDREN_no 219 .byte 3 # DW_AT_name 220 .byte 37 # DW_FORM_strx1 221 .byte 62 # DW_AT_encoding 222 .byte 11 # DW_FORM_data1 223 .byte 11 # DW_AT_byte_size 224 .byte 11 # DW_FORM_data1 225 .byte 0 # EOM(1) 226 .byte 0 # EOM(2) 227 .byte 7 # Abbreviation Code 228 .byte 15 # DW_TAG_pointer_type 229 .byte 0 # DW_CHILDREN_no 230 .byte 73 # DW_AT_type 231 .byte 19 # DW_FORM_ref4 232 .byte 0 # EOM(1) 233 .byte 0 # EOM(2) 234 .byte 0 # EOM(3) 235 .section .debug_info,"",@progbits 236.Lcu_begin0: 237 .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit 238.Ldebug_info_start0: 239 .short 5 # DWARF version number 240 .byte 1 # DWARF Unit Type 241 .byte 8 # Address Size (in bytes) 242 .long .debug_abbrev # Offset Into Abbrev. Section 243 .byte 1 # Abbrev [1] 0xc:0x8a DW_TAG_compile_unit 244 .byte 0 # DW_AT_producer 245 .short 33 # DW_AT_language 246 .byte 1 # DW_AT_name 247 .long .Lstr_offsets_base0 # DW_AT_str_offsets_base 248 .long .Lline_table_start0 # DW_AT_stmt_list 249 .byte 2 # DW_AT_comp_dir 250 .byte 0 # DW_AT_low_pc 251 .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc 252 .long .Laddr_table_base0 # DW_AT_addr_base 253 .byte 2 # Abbrev [2] 0x27:0x21 DW_TAG_subprogram 254 .byte 0 # DW_AT_low_pc 255 .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc 256 .byte 1 # DW_AT_frame_base 257 .byte 87 258 # DW_AT_call_all_calls 259 .byte 3 # DW_AT_linkage_name 260 .byte 4 # DW_AT_name 261 .byte 0 # DW_AT_decl_file 262 .byte 1 # DW_AT_decl_line 263 # DW_AT_external 264 .byte 3 # Abbrev [3] 0x33:0xa DW_TAG_formal_parameter 265 .byte 1 # DW_AT_location 266 .byte 85 267 .byte 7 # DW_AT_name 268 .byte 0 # DW_AT_decl_file 269 .byte 1 # DW_AT_decl_line 270 .long 132 # DW_AT_type 271 .byte 3 # Abbrev [3] 0x3d:0xa DW_TAG_formal_parameter 272 .byte 1 # DW_AT_location 273 .byte 84 274 .byte 8 # DW_AT_name 275 .byte 0 # DW_AT_decl_file 276 .byte 1 # DW_AT_decl_line 277 .long 132 # DW_AT_type 278 .byte 0 # End Of Children Mark 279 .byte 4 # Abbrev [4] 0x48:0x36 DW_TAG_subprogram 280 .byte 1 # DW_AT_low_pc 281 .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc 282 .byte 1 # DW_AT_frame_base 283 .byte 87 284 # DW_AT_call_all_calls 285 .byte 5 # DW_AT_name 286 .byte 0 # DW_AT_decl_file 287 .byte 7 # DW_AT_decl_line 288 .long 128 # DW_AT_type 289 # DW_AT_external 290 .byte 3 # Abbrev [3] 0x57:0xa DW_TAG_formal_parameter 291 .byte 1 # DW_AT_location 292 .byte 85 293 .byte 9 # DW_AT_name 294 .byte 0 # DW_AT_decl_file 295 .byte 7 # DW_AT_decl_line 296 .long 128 # DW_AT_type 297 .byte 3 # Abbrev [3] 0x61:0xa DW_TAG_formal_parameter 298 .byte 1 # DW_AT_location 299 .byte 84 300 .byte 10 # DW_AT_name 301 .byte 0 # DW_AT_decl_file 302 .byte 7 # DW_AT_decl_line 303 .long 137 # DW_AT_type 304 .byte 5 # Abbrev [5] 0x6b:0x9 DW_TAG_variable 305 .long .Ldebug_loc0 # DW_AT_location 306 .byte 7 # DW_AT_name 307 .byte 0 # DW_AT_decl_file 308 .byte 8 # DW_AT_decl_line 309 .long 128 # DW_AT_type 310 .byte 5 # Abbrev [5] 0x74:0x9 DW_TAG_variable 311 .long .Ldebug_loc1 # DW_AT_location 312 .byte 8 # DW_AT_name 313 .byte 0 # DW_AT_decl_file 314 .byte 9 # DW_AT_decl_line 315 .long 128 # DW_AT_type 316 .byte 0 # End Of Children Mark 317 .byte 6 # Abbrev [6] 0x7e:0x4 DW_TAG_base_type 318 .byte 6 # DW_AT_name 319 .byte 5 # DW_AT_encoding 320 .byte 4 # DW_AT_byte_size 321 .byte 7 # Abbrev [7] 0x82:0x5 DW_TAG_pointer_type 322 .long 128 # DW_AT_type 323 .byte 7 # Abbrev [7] 0x87:0x5 DW_TAG_pointer_type 324 .long 142 # DW_AT_type 325 .byte 7 # Abbrev [7] 0x8c:0x5 DW_TAG_pointer_type 326 .long 147 # DW_AT_type 327 .byte 6 # Abbrev [6] 0x91:0x4 DW_TAG_base_type 328 .byte 11 # DW_AT_name 329 .byte 6 # DW_AT_encoding 330 .byte 1 # DW_AT_byte_size 331 .byte 0 # End Of Children Mark 332.Ldebug_info_end0: 333 .section .debug_str_offsets,"",@progbits 334 .long 52 # Length of String Offsets Set 335 .short 5 336 .short 0 337.Lstr_offsets_base0: 338 .section .debug_str,"MS",@progbits,1 339.Linfo_string0: 340 .asciz "clang version 15.0.0" # string offset=0 341.Linfo_string1: 342 .asciz "main.cpp" # string offset=134 343.Linfo_string2: 344 .asciz "." # string offset=143 345.Linfo_string3: 346 .asciz "_Z3usePiS_" # string offset=181 347.Linfo_string4: 348 .asciz "use" # string offset=192 349.Linfo_string5: 350 .asciz "main" # string offset=196 351.Linfo_string6: 352 .asciz "int" # string offset=201 353.Linfo_string7: 354 .asciz "x" # string offset=205 355.Linfo_string8: 356 .asciz "y" # string offset=207 357.Linfo_string9: 358 .asciz "argc" # string offset=209 359.Linfo_string10: 360 .asciz "argv" # string offset=214 361.Linfo_string11: 362 .asciz "char" # string offset=219 363 .section .debug_str_offsets,"",@progbits 364 .long .Linfo_string0 365 .long .Linfo_string1 366 .long .Linfo_string2 367 .long .Linfo_string3 368 .long .Linfo_string4 369 .long .Linfo_string5 370 .long .Linfo_string6 371 .long .Linfo_string7 372 .long .Linfo_string8 373 .long .Linfo_string9 374 .long .Linfo_string10 375 .long .Linfo_string11 376 .section .debug_addr,"",@progbits 377 .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution 378.Ldebug_addr_start0: 379 .short 5 # DWARF version number 380 .byte 8 # Address size 381 .byte 0 # Segment selector size 382.Laddr_table_base0: 383 .quad .Lfunc_begin0 384 .quad .Lfunc_begin1 385.Ldebug_addr_end0: 386 .ident "clang version 15.0.0" 387 .section ".note.GNU-stack","",@progbits 388 .addrsig 389 .section .debug_line,"",@progbits 390.Lline_table_start0: 391