| /* Original C (for context): |
| * __attribute__((noinline)) |
| * int main(int argc, char **argv) { |
| * int i = argc; // i in a reg (DW_OP_regN) |
| * asm volatile("" :: "r"(i)); // keep i live here |
| * i = 0; // i becomes const 0 (DW_OP_constu 0, stack_value) |
| * asm volatile("" :: "r"(i)); // keep the const range materialized |
| * return 0; // i ends -> <undef> after its range |
| * } |
| */ |
| |
| .file "seed_reg_const_undef.c" |
| .att_syntax |
| .text |
| .globl main # -- Begin function main |
| .p2align 4 |
| .type main,@function |
| main: # @main |
| .Lfunc_begin0: |
| .file 0 "." "seed_reg_const_undef.c" md5 0x5e8dbf089d1bd72d395da802210b3138 |
| .loc 0 3 0 # seed_reg_const_undef.c:3:0 |
| .cfi_startproc |
| # %bb.0: # %entry |
| #DEBUG_VALUE: main:argc <- $edi |
| #DEBUG_VALUE: main:argv <- $rsi |
| pushq %rbp |
| .cfi_def_cfa_offset 16 |
| .cfi_offset %rbp, -16 |
| movq %rsp, %rbp |
| .cfi_def_cfa_register %rbp |
| .Ltmp0: |
| #DEBUG_VALUE: main:i <- $edi |
| .loc 0 5 3 prologue_end # seed_reg_const_undef.c:5:3 |
| #APP |
| #NO_APP |
| .Ltmp1: |
| #DEBUG_VALUE: main:i <- 0 |
| .loc 0 7 3 # seed_reg_const_undef.c:7:3 |
| xorl %eax, %eax |
| #APP |
| #NO_APP |
| .loc 0 8 3 # seed_reg_const_undef.c:8:3 |
| xorl %eax, %eax |
| .loc 0 8 3 epilogue_begin is_stmt 0 # seed_reg_const_undef.c:8:3 |
| popq %rbp |
| .cfi_def_cfa %rsp, 8 |
| retq |
| .Ltmp2: |
| .Lfunc_end0: |
| .size main, .Lfunc_end0-main |
| .cfi_endproc |
| # -- End function |
| .section .debug_loclists,"",@progbits |
| .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length |
| .Ldebug_list_header_start0: |
| .short 5 # Version |
| .byte 8 # Address size |
| .byte 0 # Segment selector size |
| .long 1 # Offset entry count |
| .Lloclists_table_base0: |
| .long .Ldebug_loc0-.Lloclists_table_base0 |
| .Ldebug_loc0: |
| .byte 4 # DW_LLE_offset_pair |
| .uleb128 .Ltmp0-.Lfunc_begin0 # starting offset |
| .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset |
| .byte 1 # Loc expr size |
| .byte 85 # super-register DW_OP_reg5 |
| .byte 4 # DW_LLE_offset_pair |
| .uleb128 .Ltmp1-.Lfunc_begin0 # starting offset |
| .uleb128 .Lfunc_end0-.Lfunc_begin0 # ending offset |
| .byte 3 # Loc expr size |
| .byte 17 # DW_OP_consts |
| .byte 0 # 0 |
| .byte 159 # DW_OP_stack_value |
| .byte 0 # DW_LLE_end_of_list |
| .Ldebug_list_header_end0: |
| .section .debug_abbrev,"",@progbits |
| .byte 1 # Abbreviation Code |
| .byte 17 # DW_TAG_compile_unit |
| .byte 1 # DW_CHILDREN_yes |
| .byte 37 # DW_AT_producer |
| .byte 37 # DW_FORM_strx1 |
| .byte 19 # DW_AT_language |
| .byte 5 # DW_FORM_data2 |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 114 # DW_AT_str_offsets_base |
| .byte 23 # DW_FORM_sec_offset |
| .byte 16 # DW_AT_stmt_list |
| .byte 23 # DW_FORM_sec_offset |
| .byte 27 # DW_AT_comp_dir |
| .byte 37 # DW_FORM_strx1 |
| .byte 17 # DW_AT_low_pc |
| .byte 27 # DW_FORM_addrx |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 115 # DW_AT_addr_base |
| .byte 23 # DW_FORM_sec_offset |
| .ascii "\214\001" # DW_AT_loclists_base |
| .byte 23 # DW_FORM_sec_offset |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 2 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 1 # DW_CHILDREN_yes |
| .byte 17 # DW_AT_low_pc |
| .byte 27 # DW_FORM_addrx |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 64 # DW_AT_frame_base |
| .byte 24 # DW_FORM_exprloc |
| .byte 122 # DW_AT_call_all_calls |
| .byte 25 # DW_FORM_flag_present |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 39 # DW_AT_prototyped |
| .byte 25 # DW_FORM_flag_present |
| .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 3 # 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 |
| .byte 37 # DW_FORM_strx1 |
| .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 4 # Abbreviation Code |
| .byte 52 # DW_TAG_variable |
| .byte 0 # DW_CHILDREN_no |
| .byte 2 # DW_AT_location |
| .byte 34 # DW_FORM_loclistx |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .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 5 # Abbreviation Code |
| .byte 36 # DW_TAG_base_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .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 6 # 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_info,"",@progbits |
| .Lcu_begin0: |
| .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit |
| .Ldebug_info_start0: |
| .short 5 # DWARF version number |
| .byte 1 # DWARF Unit Type |
| .byte 8 # Address Size (in bytes) |
| .long .debug_abbrev # Offset Into Abbrev. Section |
| .byte 1 # Abbrev [1] 0xc:0x5b DW_TAG_compile_unit |
| .byte 0 # DW_AT_producer |
| .short 29 # DW_AT_language |
| .byte 1 # DW_AT_name |
| .long .Lstr_offsets_base0 # DW_AT_str_offsets_base |
| .long .Lline_table_start0 # DW_AT_stmt_list |
| .byte 2 # DW_AT_comp_dir |
| .byte 0 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .long .Laddr_table_base0 # DW_AT_addr_base |
| .long .Lloclists_table_base0 # DW_AT_loclists_base |
| .byte 2 # Abbrev [2] 0x27:0x2d DW_TAG_subprogram |
| .byte 0 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .byte 1 # DW_AT_frame_base |
| .byte 86 |
| # DW_AT_call_all_calls |
| .byte 3 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 3 # DW_AT_decl_line |
| # DW_AT_prototyped |
| .long 84 # DW_AT_type |
| # DW_AT_external |
| .byte 3 # Abbrev [3] 0x36:0xa DW_TAG_formal_parameter |
| .byte 1 # DW_AT_location |
| .byte 85 |
| .byte 5 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 3 # DW_AT_decl_line |
| .long 84 # DW_AT_type |
| .byte 3 # Abbrev [3] 0x40:0xa DW_TAG_formal_parameter |
| .byte 1 # DW_AT_location |
| .byte 84 |
| .byte 6 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 3 # DW_AT_decl_line |
| .long 88 # DW_AT_type |
| .byte 4 # Abbrev [4] 0x4a:0x9 DW_TAG_variable |
| .byte 0 # DW_AT_location |
| .byte 8 # DW_AT_name |
| .byte 0 # DW_AT_decl_file |
| .byte 4 # DW_AT_decl_line |
| .long 84 # DW_AT_type |
| .byte 0 # End Of Children Mark |
| .byte 5 # Abbrev [5] 0x54:0x4 DW_TAG_base_type |
| .byte 4 # DW_AT_name |
| .byte 5 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .byte 6 # Abbrev [6] 0x58:0x5 DW_TAG_pointer_type |
| .long 93 # DW_AT_type |
| .byte 6 # Abbrev [6] 0x5d:0x5 DW_TAG_pointer_type |
| .long 98 # DW_AT_type |
| .byte 5 # Abbrev [5] 0x62:0x4 DW_TAG_base_type |
| .byte 7 # DW_AT_name |
| .byte 6 # DW_AT_encoding |
| .byte 1 # DW_AT_byte_size |
| .byte 0 # End Of Children Mark |
| .Ldebug_info_end0: |
| .section .debug_str_offsets,"",@progbits |
| .long 40 # Length of String Offsets Set |
| .short 5 |
| .short 0 |
| .Lstr_offsets_base0: |
| .section .debug_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "clang version 22.0.0git (https://github.com/UltimateForce21/llvm-project.git 79c0a9e1e7da0f727c41d27c9c6ff8a28bb7d06f)" # string offset=0 |
| .Linfo_string1: |
| .asciz "seed_reg_const_undef.c" # string offset=119 |
| .Linfo_string2: |
| .asciz "." # string offset=142 |
| .Linfo_string3: |
| .asciz "main" # string offset=144 |
| .Linfo_string4: |
| .asciz "int" # string offset=149 |
| .Linfo_string5: |
| .asciz "argc" # string offset=153 |
| .Linfo_string6: |
| .asciz "argv" # string offset=158 |
| .Linfo_string7: |
| .asciz "char" # string offset=163 |
| .Linfo_string8: |
| .asciz "i" # string offset=168 |
| .section .debug_str_offsets,"",@progbits |
| .long .Linfo_string0 |
| .long .Linfo_string1 |
| .long .Linfo_string2 |
| .long .Linfo_string3 |
| .long .Linfo_string4 |
| .long .Linfo_string5 |
| .long .Linfo_string6 |
| .long .Linfo_string7 |
| .long .Linfo_string8 |
| .section .debug_addr,"",@progbits |
| .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution |
| .Ldebug_addr_start0: |
| .short 5 # DWARF version number |
| .byte 8 # Address size |
| .byte 0 # Segment selector size |
| .Laddr_table_base0: |
| .quad .Lfunc_begin0 |
| .Ldebug_addr_end0: |
| .ident "clang version 22.0.0git (https://github.com/UltimateForce21/llvm-project.git 79c0a9e1e7da0f727c41d27c9c6ff8a28bb7d06f)" |
| .section ".note.GNU-stack","",@progbits |
| .addrsig |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
