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82ca752393
Added a test that relies on -fbasic-block-sections=all and --gc-sections that exercises a code path that previously printed a warning.
539 lines
22 KiB
ArmAsm
539 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 -Wl,-gc-sections -fuse-ld=lld -Wl,--entry=main
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# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections
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# RUN: llvm-dwarfdump --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s
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# RUN: llvm-dwarfdump --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s
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# PRECHECK: DW_TAG_subprogram
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# PRECHECK-NEXT: DW_AT_ranges
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# PRECHECK-NEXT: [0x0000000000000000
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# PRECHECK-NEXT: [0x0000000000000000
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# PRECHECK-NEXT: [0x0000000000000000
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# PRECHECK-NEXT: [0x0000000000000000
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# PRECHECK-NEXT: DW_AT_frame_base
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# PRECHECK-NEXT: DW_AT_linkage_name ("_Z6helperi")
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# PRECHECK-NEXT: DW_AT_name ("helper")
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# POSTCHECK: DW_TAG_subprogram
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# POSTCHECK-NEXT: DW_AT_frame_base
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# POSTCHECK-NEXT: DW_AT_linkage_name ("_Z6helperi")
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# POSTCHECK-NEXT: DW_AT_name ("helper")
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# POSTCHECK-NEXT: DW_AT_decl_file
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# POSTCHECK-NEXT: DW_AT_decl_line
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# POSTCHECK-NEXT: DW_AT_type
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# POSTCHECK-NEXT: DW_AT_external
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# POSTCHECK-NEXT: DW_AT_low_pc (0x0000000000000000)
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# POSTCHECK-NEXT: DW_AT_high_pc (0x0000000000000001)
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## Tests BOLT path that handles DW_AT_ranges with no output function ranges.
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## clang++ main.cpp -O0 -fno-inline-functions -fbasic-block-sections=all -g2 -S
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## int helper(int argc) {
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## int x = argc;
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## if (x == 3)
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## x++;
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## else
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## x--;
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## return x;
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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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## if (x == 3)
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## x++;
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## else
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## x--;
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## return x;
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## }
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.text
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.file "main.cpp"
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.section .text._Z6helperi,"ax",@progbits
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.globl _Z6helperi # -- Begin function _Z6helperi
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.p2align 4, 0x90
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.type _Z6helperi,@function
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_Z6helperi: # @_Z6helperi
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.Lfunc_begin0:
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.file 0 "/repro2" "main.cpp" md5 0x888a2704226ec400f256aa9c2207456c
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.loc 0 1 0 # main.cpp:1:0
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.cfi_startproc
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# %bb.0: # %entry
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pushq %rbp
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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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movl %edi, -4(%rbp)
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.Ltmp0:
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.loc 0 2 11 prologue_end # main.cpp:2:11
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movl -4(%rbp), %eax
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.loc 0 2 7 is_stmt 0 # main.cpp:2:7
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movl %eax, -8(%rbp)
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.Ltmp1:
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.loc 0 3 9 is_stmt 1 # main.cpp:3:9
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cmpl $3, -8(%rbp)
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.Ltmp2:
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.loc 0 3 7 is_stmt 0 # main.cpp:3:7
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jne _Z6helperi.__part.2
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jmp _Z6helperi.__part.1
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.LBB_END0_0:
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.cfi_endproc
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.section .text._Z6helperi,"ax",@progbits,unique,1
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_Z6helperi.__part.1: # %if.then
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.cfi_startproc
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.cfi_def_cfa %rbp, 16
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.cfi_offset %rbp, -16
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.loc 0 4 6 is_stmt 1 # main.cpp:4:6
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movl -8(%rbp), %eax
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addl $1, %eax
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movl %eax, -8(%rbp)
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.loc 0 4 5 is_stmt 0 # main.cpp:4:5
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jmp _Z6helperi.__part.3
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.LBB_END0_1:
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.size _Z6helperi.__part.1, .LBB_END0_1-_Z6helperi.__part.1
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.cfi_endproc
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.section .text._Z6helperi,"ax",@progbits,unique,2
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_Z6helperi.__part.2: # %if.else
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.cfi_startproc
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.cfi_def_cfa %rbp, 16
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.cfi_offset %rbp, -16
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.loc 0 6 6 is_stmt 1 # main.cpp:6:6
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movl -8(%rbp), %eax
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addl $-1, %eax
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movl %eax, -8(%rbp)
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jmp _Z6helperi.__part.3
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.LBB_END0_2:
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.size _Z6helperi.__part.2, .LBB_END0_2-_Z6helperi.__part.2
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.cfi_endproc
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.section .text._Z6helperi,"ax",@progbits,unique,3
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_Z6helperi.__part.3: # %if.end
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.cfi_startproc
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.cfi_def_cfa %rbp, 16
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.cfi_offset %rbp, -16
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.loc 0 7 10 # main.cpp:7:10
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movl -8(%rbp), %eax
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.loc 0 7 3 epilogue_begin is_stmt 0 # main.cpp:7:3
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popq %rbp
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.cfi_def_cfa %rsp, 8
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retq
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.LBB_END0_3:
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.size _Z6helperi.__part.3, .LBB_END0_3-_Z6helperi.__part.3
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.cfi_endproc
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.section .text._Z6helperi,"ax",@progbits
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.Lfunc_end0:
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.size _Z6helperi, .Lfunc_end0-_Z6helperi
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# -- End function
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.section .text.main,"ax",@progbits
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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 9 0 is_stmt 1 # main.cpp:9:0
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.cfi_startproc
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# %bb.0: # %entry
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pushq %rbp
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.cfi_def_cfa_offset 16
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.cfi_offset %rbp, -16
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movq %rsp, %rbp
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.cfi_def_cfa_register %rbp
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movl $0, -4(%rbp)
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movl %edi, -8(%rbp)
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movq %rsi, -16(%rbp)
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.Ltmp3:
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.loc 0 10 11 prologue_end # main.cpp:10:11
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movl -8(%rbp), %eax
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.loc 0 10 7 is_stmt 0 # main.cpp:10:7
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movl %eax, -20(%rbp)
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.Ltmp4:
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.loc 0 11 9 is_stmt 1 # main.cpp:11:9
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cmpl $3, -20(%rbp)
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.Ltmp5:
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.loc 0 11 7 is_stmt 0 # main.cpp:11:7
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jne main.__part.2
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jmp main.__part.1
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.LBB_END1_0:
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.cfi_endproc
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.section .text.main,"ax",@progbits,unique,4
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main.__part.1: # %if.then
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.cfi_startproc
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.cfi_def_cfa %rbp, 16
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.cfi_offset %rbp, -16
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.loc 0 12 6 is_stmt 1 # main.cpp:12:6
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movl -20(%rbp), %eax
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addl $1, %eax
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movl %eax, -20(%rbp)
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.loc 0 12 5 is_stmt 0 # main.cpp:12:5
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jmp main.__part.3
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.LBB_END1_1:
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.size main.__part.1, .LBB_END1_1-main.__part.1
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.cfi_endproc
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.section .text.main,"ax",@progbits,unique,5
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main.__part.2: # %if.else
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.cfi_startproc
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.cfi_def_cfa %rbp, 16
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.cfi_offset %rbp, -16
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.loc 0 14 6 is_stmt 1 # main.cpp:14:6
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movl -20(%rbp), %eax
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addl $-1, %eax
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movl %eax, -20(%rbp)
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jmp main.__part.3
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.LBB_END1_2:
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.size main.__part.2, .LBB_END1_2-main.__part.2
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.cfi_endproc
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.section .text.main,"ax",@progbits,unique,6
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main.__part.3: # %if.end
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.cfi_startproc
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.cfi_def_cfa %rbp, 16
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.cfi_offset %rbp, -16
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.loc 0 15 10 # main.cpp:15:10
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movl -20(%rbp), %eax
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.loc 0 15 3 epilogue_begin is_stmt 0 # main.cpp:15:3
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popq %rbp
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.cfi_def_cfa %rsp, 8
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retq
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.LBB_END1_3:
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.size main.__part.3, .LBB_END1_3-main.__part.3
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.cfi_endproc
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.section .text.main,"ax",@progbits
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.Lfunc_end1:
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.size main, .Lfunc_end1-main
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# -- End function
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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 1 # DW_FORM_addr
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.byte 85 # DW_AT_ranges
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.byte 35 # DW_FORM_rnglistx
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.byte 115 # DW_AT_addr_base
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.byte 23 # DW_FORM_sec_offset
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.byte 116 # DW_AT_rnglists_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 85 # DW_AT_ranges
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.byte 35 # DW_FORM_rnglistx
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.byte 64 # DW_AT_frame_base
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.byte 24 # DW_FORM_exprloc
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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 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 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 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 5 # 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 85 # DW_AT_ranges
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.byte 35 # DW_FORM_rnglistx
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.byte 64 # DW_AT_frame_base
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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 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 6 # 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 7 # 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:0x82 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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.quad 0 # DW_AT_low_pc
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.byte 2 # DW_AT_ranges
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.long .Laddr_table_base0 # DW_AT_addr_base
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.long .Lrnglists_table_base0 # DW_AT_rnglists_base
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.byte 2 # Abbrev [2] 0x2b:0x23 DW_TAG_subprogram
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.byte 0 # DW_AT_ranges
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.byte 1 # DW_AT_frame_base
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.byte 86
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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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.long 123 # DW_AT_type
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# DW_AT_external
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.byte 3 # Abbrev [3] 0x37:0xb DW_TAG_formal_parameter
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.byte 2 # DW_AT_location
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.byte 145
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.byte 124
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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 123 # DW_AT_type
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.byte 4 # Abbrev [4] 0x42:0xb DW_TAG_variable
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.byte 2 # DW_AT_location
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.byte 145
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.byte 120
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.byte 8 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 2 # DW_AT_decl_line
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.long 123 # DW_AT_type
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.byte 0 # End Of Children Mark
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.byte 5 # Abbrev [5] 0x4e:0x2d DW_TAG_subprogram
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.byte 1 # DW_AT_ranges
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.byte 1 # DW_AT_frame_base
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.byte 86
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.byte 6 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 9 # DW_AT_decl_line
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.long 123 # DW_AT_type
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# DW_AT_external
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.byte 3 # Abbrev [3] 0x59:0xb DW_TAG_formal_parameter
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.byte 2 # DW_AT_location
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.byte 145
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.byte 120
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.byte 7 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 9 # DW_AT_decl_line
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.long 123 # DW_AT_type
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.byte 3 # Abbrev [3] 0x64:0xb DW_TAG_formal_parameter
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.byte 2 # DW_AT_location
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.byte 145
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.byte 112
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.byte 9 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 9 # DW_AT_decl_line
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.long 127 # DW_AT_type
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.byte 4 # Abbrev [4] 0x6f:0xb DW_TAG_variable
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.byte 2 # DW_AT_location
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.byte 145
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.byte 108
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.byte 8 # DW_AT_name
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.byte 0 # DW_AT_decl_file
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.byte 10 # DW_AT_decl_line
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.long 123 # DW_AT_type
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.byte 0 # End Of Children Mark
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.byte 6 # Abbrev [6] 0x7b:0x4 DW_TAG_base_type
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.byte 5 # 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 7 # Abbrev [7] 0x7f:0x5 DW_TAG_pointer_type
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.long 132 # DW_AT_type
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.byte 7 # Abbrev [7] 0x84:0x5 DW_TAG_pointer_type
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.long 137 # DW_AT_type
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.byte 6 # Abbrev [6] 0x89:0x4 DW_TAG_base_type
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.byte 10 # DW_AT_name
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.byte 6 # DW_AT_encoding
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.byte 1 # DW_AT_byte_size
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.byte 0 # End Of Children Mark
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.Ldebug_info_end0:
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.section .debug_rnglists,"",@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 3 # Offset entry count
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.Lrnglists_table_base0:
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.long .Ldebug_ranges0-.Lrnglists_table_base0
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.long .Ldebug_ranges1-.Lrnglists_table_base0
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.long .Ldebug_ranges2-.Lrnglists_table_base0
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.Ldebug_ranges0:
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.byte 3 # DW_RLE_startx_length
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.byte 0 # start index
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.uleb128 .LBB_END0_1-_Z6helperi.__part.1 # length
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|
.byte 3 # DW_RLE_startx_length
|
|
.byte 1 # start index
|
|
.uleb128 .LBB_END0_2-_Z6helperi.__part.2 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 2 # start index
|
|
.uleb128 .LBB_END0_3-_Z6helperi.__part.3 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 3 # start index
|
|
.uleb128 .Lfunc_end0-.Lfunc_begin0 # length
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_ranges1:
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 4 # start index
|
|
.uleb128 .LBB_END1_1-main.__part.1 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 5 # start index
|
|
.uleb128 .LBB_END1_2-main.__part.2 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 6 # start index
|
|
.uleb128 .LBB_END1_3-main.__part.3 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 7 # start index
|
|
.uleb128 .Lfunc_end1-.Lfunc_begin1 # length
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_ranges2:
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 0 # start index
|
|
.uleb128 .LBB_END0_1-_Z6helperi.__part.1 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 1 # start index
|
|
.uleb128 .LBB_END0_2-_Z6helperi.__part.2 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 2 # start index
|
|
.uleb128 .LBB_END0_3-_Z6helperi.__part.3 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 3 # start index
|
|
.uleb128 .Lfunc_end0-.Lfunc_begin0 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 4 # start index
|
|
.uleb128 .LBB_END1_1-main.__part.1 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 5 # start index
|
|
.uleb128 .LBB_END1_2-main.__part.2 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 6 # start index
|
|
.uleb128 .LBB_END1_3-main.__part.3 # length
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 7 # start index
|
|
.uleb128 .Lfunc_end1-.Lfunc_begin1 # length
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_list_header_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 a1d8664d409cac2a923176a8e9a731385bde279e)" # string offset=0
|
|
.Linfo_string1:
|
|
.asciz "main.cpp" # string offset=108
|
|
.Linfo_string2:
|
|
.asciz "/repro2" # string offset=117
|
|
.Linfo_string3:
|
|
.asciz "_Z6helperi" # string offset=162
|
|
.Linfo_string4:
|
|
.asciz "helper" # string offset=173
|
|
.Linfo_string5:
|
|
.asciz "int" # string offset=180
|
|
.Linfo_string6:
|
|
.asciz "main" # string offset=184
|
|
.Linfo_string7:
|
|
.asciz "argc" # string offset=189
|
|
.Linfo_string8:
|
|
.asciz "x" # string offset=194
|
|
.Linfo_string9:
|
|
.asciz "argv" # string offset=196
|
|
.Linfo_string10:
|
|
.asciz "char" # string offset=201
|
|
.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 _Z6helperi.__part.1
|
|
.quad _Z6helperi.__part.2
|
|
.quad _Z6helperi.__part.3
|
|
.quad .Lfunc_begin0
|
|
.quad main.__part.1
|
|
.quad main.__part.2
|
|
.quad main.__part.3
|
|
.quad .Lfunc_begin1
|
|
.Ldebug_addr_end0:
|
|
.ident "clang version 19.0.0git (git@github.com:ayermolo/llvm-project.git a1d8664d409cac2a923176a8e9a731385bde279e)"
|
|
.section ".note.GNU-stack","",@progbits
|
|
.addrsig
|
|
.section .debug_line,"",@progbits
|
|
.Lline_table_start0:
|