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c9e8e91aca
GCC can generate rangelists/loclists that are out of order. Fixed so that we don't assert, and instead generate partially optimized list. Through most code paths we do sort rnglists/loclists, but not for loclist for a path where BOLT does not modify a function. Although it's nice to have lists sorted, this implementation shouldn't rely on it. This also fixes an issue if we partially capture a list we would write out *end_of_list in helper function. So tools won't see the rest of the addresses being written out.
486 lines
22 KiB
ArmAsm
486 lines
22 KiB
ArmAsm
# REQUIRES: system-linux
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# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o
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# RUN: %clang %cflags -dwarf-5 %t1.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections --skip-funcs=main
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# RUN: llvm-dwarfdump --show-form --verbose --debug-loclists --debug-addr %t.bolt > %t.txt
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# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt >> %t.txt
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# RUN: cat %t.txt | FileCheck --check-prefix=POSTCHECK %s
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## Tests to make sure BOLT handles correctly locations that are out of order, and the function is not being processed.
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# POSTCHECK: DW_LLE_base_addressx
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# POSTCHECK-NEXT: DW_LLE_offset_pair
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# POSTCHECK-NEXT: DW_LLE_offset_pair
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# POSTCHECK-NEXT: DW_LLE_startx_length
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# POSTCHECK-NEXT: DW_LLE_end_of_list
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# POSTCHECK: DW_LLE_base_addressx
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# POSTCHECK-NEXT: DW_LLE_offset_pair
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# POSTCHECK-NEXT: DW_LLE_offset_pair
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# POSTCHECK-NEXT: DW_LLE_end_of_list
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# POSTCHECK: Addrs: [
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# POSTCHECK-NEXT: 0x[[#%.16x,ADDR:]]
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# POSTCHECK-NEXT: 0x
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# POSTCHECK-NEXT: 0x
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# POSTCHECK-NEXT: 0x[[#%.16x,ADDR1:]]
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# POSTCHECK-NEXT: 0x
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# POSTCHECK-NEXT: 0x
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# POSTCHECK: DW_TAG_formal_parameter
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# POSTCHECK: DW_TAG_formal_parameter
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# POSTCHECK-NEXT: DW_AT_location
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# POSTCHECK-NEXT: [0x[[#ADDR1]], 0x[[#ADDR1 + 0x1a]]): DW_OP_reg3 RBX
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# POSTCHECK-NEXT: [0x[[#ADDR1 + 0x1a]], 0x[[#ADDR1 + 0x1d]]): DW_OP_entry_value(DW_OP_reg5 RDI), DW_OP_stack_value
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# POSTCHECK-NEXT: [0x[[#ADDR]], 0x[[#ADDR + 0x12]]): DW_OP_reg5 RDI)
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## clang++ main.cpp -fno-inline-functions -g2 -O2 -S
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## void use(int * x) {
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## *x += 4;
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## }
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## int main(int argc, char *argv[]) {
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## int x = argc;
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## use(&x);
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## x = x + argc;
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## use(&x);
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## return x;
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## }
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## Test was manually modified to re-order locations.
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.text
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.file "main.cpp"
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.globl _Z3usePi # -- Begin function _Z3usePi
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.p2align 4, 0x90
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.type _Z3usePi,@function
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_Z3usePi: # @_Z3usePi
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.Lfunc_begin0:
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.file 0 "/repro" "main.cpp" md5 0xe24a1d6afb5e23ce0028f1f33bc08cd7
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.cfi_startproc
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# %bb.0: # %entry
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#DEBUG_VALUE: use:x <- $rdi
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.loc 0 2 8 prologue_end # main.cpp:2:8
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addl $4, (%rdi)
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.loc 0 3 1 # main.cpp:3:1
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retq
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.Ltmp0:
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.Lfunc_end0:
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.size _Z3usePi, .Lfunc_end0-_Z3usePi
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.cfi_endproc
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# -- End function
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.globl main # -- Begin function main
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.p2align 4, 0x90
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.type main,@function
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main: # @main
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.Lfunc_begin1:
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.loc 0 4 0 # main.cpp:4:0
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.cfi_startproc
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# %bb.0: # %entry
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#DEBUG_VALUE: main:argc <- $edi
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#DEBUG_VALUE: main:argv <- $rsi
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pushq %r14
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.cfi_def_cfa_offset 16
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pushq %rbx
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.cfi_def_cfa_offset 24
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pushq %rax
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.cfi_def_cfa_offset 32
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.cfi_offset %rbx, -24
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.cfi_offset %r14, -16
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movl %edi, %ebx
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.Ltmp1:
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.loc 0 5 7 prologue_end # main.cpp:5:7
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movl %edi, 4(%rsp)
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leaq 4(%rsp), %r14
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.loc 0 6 3 # main.cpp:6:3
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movq %r14, %rdi
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.Ltmp2:
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#DEBUG_VALUE: main:argc <- $ebx
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callq _Z3usePi
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.Ltmp3:
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#DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rsi
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.loc 0 7 5 # main.cpp:7:5
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addl %ebx, 4(%rsp)
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.loc 0 8 3 # main.cpp:8:3
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movq %r14, %rdi
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callq _Z3usePi
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.Ltmp4:
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.loc 0 9 10 # main.cpp:9:10
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movl 4(%rsp), %eax
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.loc 0 9 3 epilogue_begin is_stmt 0 # main.cpp:9:3
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addq $8, %rsp
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.cfi_def_cfa_offset 24
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popq %rbx
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.Ltmp5:
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#DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $edi
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.cfi_def_cfa_offset 16
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popq %r14
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.cfi_def_cfa_offset 8
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retq
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.Ltmp6:
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.Lfunc_end1:
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.size main, .Lfunc_end1-main
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.cfi_endproc
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# -- End function
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.section .debug_loclists,"",@progbits
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.long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length
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.Ldebug_list_header_start0:
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.short 5 # Version
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.byte 8 # Address size
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.byte 0 # Segment selector size
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.long 2 # Offset entry count
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.Lloclists_table_base0:
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.long .Ldebug_loc0-.Lloclists_table_base0
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.long .Ldebug_loc1-.Lloclists_table_base0
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.Ldebug_loc0:
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.byte 4 # DW_LLE_offset_pair
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.uleb128 .Ltmp2-.Lfunc_begin0 # starting offset
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.uleb128 .Ltmp5-.Lfunc_begin0 # ending offset
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.byte 1 # Loc expr size
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.byte 83 # super-register DW_OP_reg3
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.byte 4 # DW_LLE_offset_pair
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.uleb128 .Ltmp5-.Lfunc_begin0 # starting offset
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.uleb128 .Lfunc_end1-.Lfunc_begin0 # ending offset
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.byte 4 # Loc expr size
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.byte 163 # DW_OP_entry_value
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.byte 1 # 1
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.byte 85 # super-register DW_OP_reg5
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.byte 159 # DW_OP_stack_value
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.byte 4 # DW_LLE_offset_pair #manually moved out of order
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.uleb128 .Lfunc_begin1-.Lfunc_begin0 # starting offset
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.uleb128 .Ltmp2-.Lfunc_begin0 # ending offset
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.byte 1 # Loc expr size
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.byte 85 # super-register DW_OP_reg5
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.byte 0 # DW_LLE_end_of_list
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.Ldebug_loc1:
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.byte 4 # DW_LLE_offset_pair
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.uleb128 .Lfunc_begin1-.Lfunc_begin0 # starting offset
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.uleb128 .Ltmp3-.Lfunc_begin0 # ending offset
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.byte 1 # Loc expr size
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.byte 84 # DW_OP_reg4
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.byte 4 # DW_LLE_offset_pair
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.uleb128 .Ltmp3-.Lfunc_begin0 # starting offset
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.uleb128 .Lfunc_end1-.Lfunc_begin0 # ending offset
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.byte 4 # Loc expr size
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.byte 163 # DW_OP_entry_value
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.byte 1 # 1
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.byte 84 # DW_OP_reg4
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.byte 159 # DW_OP_stack_value
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.byte 0 # DW_LLE_end_of_list
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.Ldebug_list_header_end0:
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.section .debug_abbrev,"",@progbits
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.byte 1 # Abbreviation Code
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.byte 17 # DW_TAG_compile_unit
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.byte 1 # DW_CHILDREN_yes
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.byte 37 # DW_AT_producer
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.byte 37 # DW_FORM_strx1
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.byte 19 # DW_AT_language
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.byte 5 # DW_FORM_data2
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.byte 3 # DW_AT_name
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.byte 37 # DW_FORM_strx1
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.byte 114 # DW_AT_str_offsets_base
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.byte 23 # DW_FORM_sec_offset
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.byte 16 # DW_AT_stmt_list
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.byte 23 # DW_FORM_sec_offset
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.byte 27 # DW_AT_comp_dir
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.byte 37 # DW_FORM_strx1
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.byte 17 # DW_AT_low_pc
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.byte 27 # DW_FORM_addrx
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 115 # DW_AT_addr_base
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.byte 23 # DW_FORM_sec_offset
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.ascii "\214\001" # DW_AT_loclists_base
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.byte 23 # DW_FORM_sec_offset
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 2 # Abbreviation Code
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.byte 46 # DW_TAG_subprogram
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.byte 1 # DW_CHILDREN_yes
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.byte 17 # DW_AT_low_pc
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.byte 27 # DW_FORM_addrx
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 64 # DW_AT_frame_base
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.byte 24 # DW_FORM_exprloc
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.byte 122 # DW_AT_call_all_calls
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.byte 25 # DW_FORM_flag_present
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.byte 110 # DW_AT_linkage_name
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.byte 37 # DW_FORM_strx1
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.byte 3 # DW_AT_name
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.byte 37 # DW_FORM_strx1
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 3 # Abbreviation Code
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.byte 5 # DW_TAG_formal_parameter
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 24 # DW_FORM_exprloc
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.byte 3 # DW_AT_name
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.byte 37 # DW_FORM_strx1
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 4 # Abbreviation Code
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.byte 46 # DW_TAG_subprogram
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.byte 1 # DW_CHILDREN_yes
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.byte 17 # DW_AT_low_pc
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.byte 27 # DW_FORM_addrx
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 64 # DW_AT_frame_base
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.byte 24 # DW_FORM_exprloc
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.byte 122 # DW_AT_call_all_calls
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.byte 25 # DW_FORM_flag_present
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.byte 3 # DW_AT_name
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.byte 37 # DW_FORM_strx1
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 5 # Abbreviation Code
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.byte 5 # DW_TAG_formal_parameter
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 34 # DW_FORM_loclistx
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.byte 3 # DW_AT_name
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.byte 37 # DW_FORM_strx1
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 6 # Abbreviation Code
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.byte 52 # DW_TAG_variable
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 24 # DW_FORM_exprloc
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.byte 3 # DW_AT_name
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.byte 37 # DW_FORM_strx1
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 7 # Abbreviation Code
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.byte 72 # DW_TAG_call_site
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.byte 1 # DW_CHILDREN_yes
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.byte 127 # DW_AT_call_origin
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.byte 19 # DW_FORM_ref4
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.byte 125 # DW_AT_call_return_pc
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.byte 27 # DW_FORM_addrx
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 8 # Abbreviation Code
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.byte 73 # DW_TAG_call_site_parameter
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 24 # DW_FORM_exprloc
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.byte 126 # DW_AT_call_value
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.byte 24 # DW_FORM_exprloc
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 9 # Abbreviation Code
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.byte 36 # DW_TAG_base_type
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 37 # DW_FORM_strx1
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.byte 62 # DW_AT_encoding
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.byte 11 # DW_FORM_data1
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.byte 11 # DW_AT_byte_size
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.byte 11 # DW_FORM_data1
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 10 # Abbreviation Code
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.byte 15 # DW_TAG_pointer_type
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.byte 0 # DW_CHILDREN_no
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 0 # EOM(3)
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.section .debug_info,"",@progbits
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.Lcu_begin0:
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.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
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.Ldebug_info_start0:
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.short 5 # DWARF version number
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.byte 1 # DWARF Unit Type
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.byte 8 # Address Size (in bytes)
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 1 # Abbrev [1] 0xc:0x91 DW_TAG_compile_unit
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.byte 0 # DW_AT_producer
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.short 33 # DW_AT_language
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.byte 1 # DW_AT_name
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.long .Lstr_offsets_base0 # DW_AT_str_offsets_base
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.long .Lline_table_start0 # DW_AT_stmt_list
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.byte 2 # DW_AT_comp_dir
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.byte 0 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc
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.long .Laddr_table_base0 # DW_AT_addr_base
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.long .Lloclists_table_base0 # DW_AT_loclists_base
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.byte 2 # Abbrev [2] 0x27:0x17 DW_TAG_subprogram
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.byte 0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.byte 1 # DW_AT_frame_base
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.byte 87
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# DW_AT_call_all_calls
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.byte 3 # DW_AT_linkage_name
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.byte 4 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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# DW_AT_external
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.byte 3 # Abbrev [3] 0x33:0xa DW_TAG_formal_parameter
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.byte 1 # DW_AT_location
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.byte 85
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.byte 7 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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.long 137 # DW_AT_type
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.byte 0 # End Of Children Mark
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.byte 4 # Abbrev [4] 0x3e:0x47 DW_TAG_subprogram
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.byte 1 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
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.byte 1 # DW_AT_frame_base
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.byte 87
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# DW_AT_call_all_calls
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.byte 5 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.long 133 # DW_AT_type
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# DW_AT_external
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.byte 5 # Abbrev [5] 0x4d:0x9 DW_TAG_formal_parameter
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.byte 0 # DW_AT_location
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.byte 8 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.long 133 # DW_AT_type
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.byte 5 # Abbrev [5] 0x56:0x9 DW_TAG_formal_parameter
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.byte 1 # DW_AT_location
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.byte 9 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.long 142 # DW_AT_type
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.byte 6 # Abbrev [6] 0x5f:0xb DW_TAG_variable
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.byte 2 # DW_AT_location
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.byte 145
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.byte 4
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.byte 7 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 5 # DW_AT_decl_line
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.long 133 # DW_AT_type
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.byte 7 # Abbrev [7] 0x6a:0xd DW_TAG_call_site
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.long 39 # DW_AT_call_origin
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.byte 2 # DW_AT_call_return_pc
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.byte 8 # Abbrev [8] 0x70:0x6 DW_TAG_call_site_parameter
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.byte 1 # DW_AT_location
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.byte 85
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.byte 2 # DW_AT_call_value
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.byte 126
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.byte 0
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.byte 0 # End Of Children Mark
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.byte 7 # Abbrev [7] 0x77:0xd DW_TAG_call_site
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.long 39 # DW_AT_call_origin
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.byte 3 # DW_AT_call_return_pc
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.byte 8 # Abbrev [8] 0x7d:0x6 DW_TAG_call_site_parameter
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.byte 1 # DW_AT_location
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.byte 85
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.byte 2 # DW_AT_call_value
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.byte 126
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.byte 0
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.byte 0 # End Of Children Mark
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.byte 0 # End Of Children Mark
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.byte 9 # Abbrev [9] 0x85:0x4 DW_TAG_base_type
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.byte 6 # DW_AT_name
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.byte 5 # DW_AT_encoding
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.byte 4 # DW_AT_byte_size
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.byte 10 # Abbrev [10] 0x89:0x5 DW_TAG_pointer_type
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.long 133 # DW_AT_type
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.byte 10 # Abbrev [10] 0x8e:0x5 DW_TAG_pointer_type
|
|
.long 147 # DW_AT_type
|
|
.byte 10 # Abbrev [10] 0x93:0x5 DW_TAG_pointer_type
|
|
.long 152 # DW_AT_type
|
|
.byte 9 # Abbrev [9] 0x98:0x4 DW_TAG_base_type
|
|
.byte 10 # 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 48 # Length of String Offsets Set
|
|
.short 5
|
|
.short 0
|
|
.Lstr_offsets_base0:
|
|
.section .debug_str,"MS",@progbits,1
|
|
.Linfo_string0:
|
|
.asciz "clang version 19.0.0git (git@github.com:ayermolo/llvm-project.git a1e412af2bf4bf613021f72205f249ab2469f08b)" # string offset=0
|
|
.Linfo_string1:
|
|
.asciz "main.cpp" # string offset=108
|
|
.Linfo_string2:
|
|
.asciz "/repro" # string offset=117
|
|
.Linfo_string3:
|
|
.asciz "_Z3usePi" # string offset=161
|
|
.Linfo_string4:
|
|
.asciz "use" # string offset=170
|
|
.Linfo_string5:
|
|
.asciz "main" # string offset=174
|
|
.Linfo_string6:
|
|
.asciz "int" # string offset=179
|
|
.Linfo_string7:
|
|
.asciz "x" # string offset=183
|
|
.Linfo_string8:
|
|
.asciz "argc" # string offset=185
|
|
.Linfo_string9:
|
|
.asciz "argv" # string offset=190
|
|
.Linfo_string10:
|
|
.asciz "char" # string offset=195
|
|
.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
|
|
.long .Linfo_string9
|
|
.long .Linfo_string10
|
|
.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
|
|
.quad .Lfunc_begin1
|
|
.quad .Ltmp3
|
|
.quad .Ltmp4
|
|
.Ldebug_addr_end0:
|
|
.ident "clang version 19.0.0git (git@github.com:ayermolo/llvm-project.git a1e412af2bf4bf613021f72205f249ab2469f08b)"
|
|
.section ".note.GNU-stack","",@progbits
|
|
.addrsig
|
|
.section .debug_line,"",@progbits
|
|
.Lline_table_start0:
|