| # clang++ -g -gdwarf-4 -emit-llvm -S main.cpp |
| # llc -O0 -mtriple=x86_64-unknown-linux-gnu main.ll |
| # void use(int * x, int * y) { |
| # *x += 4; |
| # *y -= 2; |
| # } |
| # |
| # int helper(int z_, int d_); |
| # int x = 0; |
| # int y = 1; |
| # int main(int argc, char *argv[]) { |
| # x = argc; |
| # y = argc + 3; |
| # use(&x, &y); |
| # return helper(x, y); |
| # } |
| |
| .text |
| .file "main.cpp" |
| .file 1 "." "main.cpp" |
| .globl _Z3usePiS_ # -- Begin function _Z3usePiS_ |
| .p2align 4, 0x90 |
| .type _Z3usePiS_,@function |
| _Z3usePiS_: # @_Z3usePiS_ |
| .Lfunc_begin0: |
| .loc 1 1 0 # main.cpp:1:0 |
| .cfi_startproc |
| # %bb.0: # %entry |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| movq %rdi, -8(%rbp) |
| movq %rsi, -16(%rbp) |
| .Ltmp0: |
| .loc 1 2 2 prologue_end # main.cpp:2:2 |
| movq -8(%rbp), %rax |
| .loc 1 2 4 is_stmt 0 # main.cpp:2:4 |
| movl (%rax), %ecx |
| addl $4, %ecx |
| movl %ecx, (%rax) |
| .loc 1 3 2 is_stmt 1 # main.cpp:3:2 |
| movq -16(%rbp), %rax |
| .loc 1 3 4 is_stmt 0 # main.cpp:3:4 |
| movl (%rax), %ecx |
| subl $2, %ecx |
| movl %ecx, (%rax) |
| .loc 1 4 1 is_stmt 1 # main.cpp:4:1 |
| popq %rbp |
| .cfi_def_cfa %rsp, 8 |
| retq |
| .Ltmp1: |
| .Lfunc_end0: |
| .size _Z3usePiS_, .Lfunc_end0-_Z3usePiS_ |
| .cfi_endproc |
| # -- End function |
| .globl main # -- Begin function main |
| .p2align 4, 0x90 |
| .type main,@function |
| main: # @main |
| .Lfunc_begin1: |
| .loc 1 9 0 # main.cpp:9:0 |
| .cfi_startproc |
| # %bb.0: # %entry |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| subq $16, %rsp |
| movl $0, -4(%rbp) |
| movl %edi, -8(%rbp) |
| movq %rsi, -16(%rbp) |
| .Ltmp2: |
| .loc 1 10 8 prologue_end # main.cpp:10:8 |
| movl -8(%rbp), %eax |
| .loc 1 10 6 is_stmt 0 # main.cpp:10:6 |
| movl %eax, x |
| .loc 1 11 8 is_stmt 1 # main.cpp:11:8 |
| movl -8(%rbp), %eax |
| .loc 1 11 13 is_stmt 0 # main.cpp:11:13 |
| addl $3, %eax |
| .loc 1 11 6 # main.cpp:11:6 |
| movl %eax, y |
| .loc 1 12 4 is_stmt 1 # main.cpp:12:4 |
| movabsq $x, %rdi |
| movabsq $y, %rsi |
| callq _Z3usePiS_ |
| .loc 1 13 18 # main.cpp:13:18 |
| movl x, %edi |
| .loc 1 13 21 is_stmt 0 # main.cpp:13:21 |
| movl y, %esi |
| .loc 1 13 11 # main.cpp:13:11 |
| callq _Z6helperii |
| .loc 1 13 4 # main.cpp:13:4 |
| addq $16, %rsp |
| popq %rbp |
| .cfi_def_cfa %rsp, 8 |
| retq |
| .Ltmp3: |
| .Lfunc_end1: |
| .size main, .Lfunc_end1-main |
| .cfi_endproc |
| # -- End function |
| .type x,@object # @x |
| .bss |
| .globl x |
| .p2align 2 |
| x: |
| .long 0 # 0x0 |
| .size x, 4 |
| |
| .type y,@object # @y |
| .data |
| .globl y |
| .p2align 2 |
| y: |
| .long 1 # 0x1 |
| .size y, 4 |
| |
| .section .debug_abbrev,"",@progbits |
| .byte 1 # Abbreviation Code |
| .byte 17 # DW_TAG_compile_unit |
| .byte 0 # DW_CHILDREN_no |
| .byte 16 # DW_AT_stmt_list |
| .byte 23 # DW_FORM_sec_offset |
| .byte 27 # DW_AT_comp_dir |
| .byte 14 # DW_FORM_strp |
| .ascii "\260B" # DW_AT_GNU_dwo_name |
| .byte 14 # DW_FORM_strp |
| .ascii "\261B" # DW_AT_GNU_dwo_id |
| .byte 7 # DW_FORM_data8 |
| .byte 17 # DW_AT_low_pc |
| .byte 1 # DW_FORM_addr |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .ascii "\263B" # DW_AT_GNU_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 4 # DWARF version number |
| .long .debug_abbrev # Offset Into Abbrev. Section |
| .byte 8 # Address Size (in bytes) |
| .byte 1 # Abbrev [1] 0xb:0x25 DW_TAG_compile_unit |
| .long .Lline_table_start0 # DW_AT_stmt_list |
| .long .Lskel_string0 # DW_AT_comp_dir |
| .long .Lskel_string1 # DW_AT_GNU_dwo_name |
| .quad 4587139501222431648 # DW_AT_GNU_dwo_id |
| .quad .Lfunc_begin0 # DW_AT_low_pc |
| .long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc |
| .long .Laddr_table_base0 # DW_AT_GNU_addr_base |
| .Ldebug_info_end0: |
| .section .debug_str,"MS",@progbits,1 |
| .Lskel_string0: |
| .asciz "." # string offset=0 |
| .Lskel_string1: |
| .asciz "main.dwo" # string offset=2 |
| .section .debug_str.dwo,"eMS",@progbits,1 |
| .Linfo_string0: |
| .asciz "x" # string offset=0 |
| .Linfo_string1: |
| .asciz "int" # string offset=2 |
| .Linfo_string2: |
| .asciz "y" # string offset=6 |
| .Linfo_string3: |
| .asciz "_Z3usePiS_" # string offset=8 |
| .Linfo_string4: |
| .asciz "use" # string offset=19 |
| .Linfo_string5: |
| .asciz "main" # string offset=23 |
| .Linfo_string6: |
| .asciz "argc" # string offset=28 |
| .Linfo_string7: |
| .asciz "argv" # string offset=33 |
| .Linfo_string8: |
| .asciz "char" # string offset=38 |
| .Linfo_string9: |
| .asciz "clang version 15.0.0" # string offset=43 |
| .Linfo_string10: |
| .asciz "main.cpp" # string offset=64 |
| .Linfo_string11: |
| .asciz "main.dwo" # string offset=73 |
| .section .debug_str_offsets.dwo,"e",@progbits |
| .long 0 |
| .long 2 |
| .long 6 |
| .long 8 |
| .long 19 |
| .long 23 |
| .long 28 |
| .long 33 |
| .long 38 |
| .long 43 |
| .long 64 |
| .long 73 |
| .section .debug_info.dwo,"e",@progbits |
| .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit |
| .Ldebug_info_dwo_start0: |
| .short 4 # DWARF version number |
| .long 0 # Offset Into Abbrev. Section |
| .byte 8 # Address Size (in bytes) |
| .byte 1 # Abbrev [1] 0xb:0x85 DW_TAG_compile_unit |
| .byte 9 # DW_AT_producer |
| .short 33 # DW_AT_language |
| .byte 10 # DW_AT_name |
| .byte 11 # DW_AT_GNU_dwo_name |
| .quad 4587139501222431648 # DW_AT_GNU_dwo_id |
| .byte 2 # Abbrev [2] 0x19:0xb DW_TAG_variable |
| .byte 0 # DW_AT_name |
| .long 36 # DW_AT_type |
| # DW_AT_external |
| .byte 1 # DW_AT_decl_file |
| .byte 7 # DW_AT_decl_line |
| .byte 2 # DW_AT_location |
| .byte 251 |
| .byte 0 |
| .byte 3 # Abbrev [3] 0x24:0x4 DW_TAG_base_type |
| .byte 1 # DW_AT_name |
| .byte 5 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .byte 2 # Abbrev [2] 0x28:0xb DW_TAG_variable |
| .byte 2 # DW_AT_name |
| .long 36 # DW_AT_type |
| # DW_AT_external |
| .byte 1 # DW_AT_decl_file |
| .byte 8 # DW_AT_decl_line |
| .byte 2 # DW_AT_location |
| .byte 251 |
| .byte 1 |
| .byte 4 # Abbrev [4] 0x33:0x23 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 1 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| # DW_AT_external |
| .byte 5 # Abbrev [5] 0x3f:0xb DW_TAG_formal_parameter |
| .byte 2 # DW_AT_location |
| .byte 145 |
| .byte 120 |
| .byte 0 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| .long 124 # DW_AT_type |
| .byte 5 # Abbrev [5] 0x4a:0xb DW_TAG_formal_parameter |
| .byte 2 # DW_AT_location |
| .byte 145 |
| .byte 112 |
| .byte 2 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 1 # DW_AT_decl_line |
| .long 124 # DW_AT_type |
| .byte 0 # End Of Children Mark |
| .byte 6 # Abbrev [6] 0x56:0x26 DW_TAG_subprogram |
| .byte 3 # DW_AT_low_pc |
| .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc |
| .byte 1 # DW_AT_frame_base |
| .byte 86 |
| .byte 5 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 9 # DW_AT_decl_line |
| .long 36 # DW_AT_type |
| # DW_AT_external |
| .byte 5 # Abbrev [5] 0x65:0xb DW_TAG_formal_parameter |
| .byte 2 # DW_AT_location |
| .byte 145 |
| .byte 120 |
| .byte 6 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 9 # DW_AT_decl_line |
| .long 36 # DW_AT_type |
| .byte 5 # Abbrev [5] 0x70:0xb DW_TAG_formal_parameter |
| .byte 2 # DW_AT_location |
| .byte 145 |
| .byte 112 |
| .byte 7 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 9 # DW_AT_decl_line |
| .long 129 # DW_AT_type |
| .byte 0 # End Of Children Mark |
| .byte 7 # Abbrev [7] 0x7c:0x5 DW_TAG_pointer_type |
| .long 36 # DW_AT_type |
| .byte 7 # Abbrev [7] 0x81:0x5 DW_TAG_pointer_type |
| .long 134 # DW_AT_type |
| .byte 7 # Abbrev [7] 0x86:0x5 DW_TAG_pointer_type |
| .long 139 # DW_AT_type |
| .byte 3 # Abbrev [3] 0x8b:0x4 DW_TAG_base_type |
| .byte 8 # DW_AT_name |
| .byte 6 # DW_AT_encoding |
| .byte 1 # DW_AT_byte_size |
| .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 |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .byte 19 # DW_AT_language |
| .byte 5 # DW_FORM_data2 |
| .byte 3 # DW_AT_name |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .ascii "\260B" # DW_AT_GNU_dwo_name |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .ascii "\261B" # DW_AT_GNU_dwo_id |
| .byte 7 # DW_FORM_data8 |
| .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 |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .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 |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .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 |
| .ascii "\201>" # DW_FORM_GNU_addr_index |
| .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 |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .byte 3 # DW_AT_name |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .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 |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .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 6 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 1 # DW_CHILDREN_yes |
| .byte 17 # DW_AT_low_pc |
| .ascii "\201>" # DW_FORM_GNU_addr_index |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 64 # DW_AT_frame_base |
| .byte 24 # DW_FORM_exprloc |
| .byte 3 # DW_AT_name |
| .ascii "\202>" # DW_FORM_GNU_str_index |
| .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 7 # Abbreviation Code |
| .byte 15 # DW_TAG_pointer_type |
| .byte 0 # DW_CHILDREN_no |
| .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 |
| .Laddr_table_base0: |
| .quad x |
| .quad y |
| .quad .Lfunc_begin0 |
| .quad .Lfunc_begin1 |
| .ident "clang version 15.0.0" |
| .section ".note.GNU-stack","",@progbits |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
