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diff --git a/bolt/test/X86/dwarf5-two-cus.s b/bolt/test/X86/dwarf5-two-cus.s
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index 000000000000..8b5afb4c6fd0
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+++ b/bolt/test/X86/dwarf5-two-cus.s
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+## Check that BOLT correctly handles two CUs with DWARF-5 debug info (does not crash), when
+## a function from one CU is forced to be inlined into another.
+
+# REQUIRES: system-linux
+
+# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %s -o %t-main.o
+# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5_helper.s -o %thelper.o
+# RUN: %clang %cflags -gdwarf-5 -Wl,-q %t-main.o %thelper.o -o %t.exe
+# RUN: llvm-bolt %t.exe --update-debug-sections --force-inline=_Z3fooi \
+# RUN: -o %t.bolt | FileCheck %s
+
+# CHECK-NOT: BOLT-ERROR
+# CHECK-NOT: BOLT-WARNING
+# CHECK: BOLT-INFO: inlined {{[0-9]+}} calls at {{[1-9][0-9]*}} call sites
+
+# extern int foo(int);
+# int main(){
+# foo(10);
+# return 0;
+# }
+ .file "main.cpp"
+ .text
+ .globl main # -- Begin function main
+ .p2align 4
+ .type main,@function
+main: # @main
+.Lfunc_begin0:
+ .file 0 "/home/gpastukhov/tmp2" "main.cpp" md5 0x5c930f5d3a068b09fd18ece59c58bdcf
+ .loc 0 2 0 # main.cpp:2:0
+ .cfi_startproc
+# %bb.0:
+ pushq %rax
+ .cfi_def_cfa_offset 16
+.Ltmp0:
+ .loc 0 3 5 prologue_end # main.cpp:3:5
+ movl $10, %edi
+ callq _Z3fooi
+.Ltmp1:
+ .loc 0 4 5 # main.cpp:4:5
+ xorl %eax, %eax
+ .loc 0 4 5 epilogue_begin is_stmt 0 # main.cpp:4:5
+ popq %rcx
+ .cfi_def_cfa_offset 8
+ retq
+.Ltmp2:
+.Lfunc_end0:
+ .size main, .Lfunc_end0-main
+ .cfi_endproc
+ # -- End function
+ .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
+ .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 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 72 # DW_TAG_call_site
+ .byte 1 # DW_CHILDREN_yes
+ .byte 127 # DW_AT_call_origin
+ .byte 19 # DW_FORM_ref4
+ .byte 125 # DW_AT_call_return_pc
+ .byte 27 # DW_FORM_addrx
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+ .byte 4 # Abbreviation Code
+ .byte 73 # DW_TAG_call_site_parameter
+ .byte 0 # DW_CHILDREN_no
+ .byte 2 # DW_AT_location
+ .byte 24 # DW_FORM_exprloc
+ .byte 126 # DW_AT_call_value
+ .byte 24 # DW_FORM_exprloc
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+ .byte 5 # Abbreviation Code
+ .byte 46 # DW_TAG_subprogram
+ .byte 1 # DW_CHILDREN_yes
+ .byte 110 # DW_AT_linkage_name
+ .byte 37 # DW_FORM_strx1
+ .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 60 # DW_AT_declaration
+ .byte 25 # DW_FORM_flag_present
+ .byte 63 # DW_AT_external
+ .byte 25 # DW_FORM_flag_present
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+ .byte 6 # Abbreviation Code
+ .byte 5 # DW_TAG_formal_parameter
+ .byte 0 # DW_CHILDREN_no
+ .byte 73 # DW_AT_type
+ .byte 19 # DW_FORM_ref4
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+ .byte 7 # 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 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:0x47 DW_TAG_compile_unit
+ .byte 0 # DW_AT_producer
+ .short 33 # 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
+ .byte 2 # Abbrev [2] 0x23:0x1c 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 87
+ # DW_AT_call_all_calls
+ .byte 6 # DW_AT_name
+ .byte 0 # DW_AT_decl_file
+ .byte 2 # DW_AT_decl_line
+ .long 78 # DW_AT_type
+ # DW_AT_external
+ .byte 3 # Abbrev [3] 0x32:0xc DW_TAG_call_site
+ .long 63 # DW_AT_call_origin
+ .byte 1 # DW_AT_call_return_pc
+ .byte 4 # Abbrev [4] 0x38:0x5 DW_TAG_call_site_parameter
+ .byte 1 # DW_AT_location
+ .byte 85
+ .byte 1 # DW_AT_call_value
+ .byte 58
+ .byte 0 # End Of Children Mark
+ .byte 0 # End Of Children Mark
+ .byte 5 # Abbrev [5] 0x3f:0xf DW_TAG_subprogram
+ .byte 3 # DW_AT_linkage_name
+ .byte 4 # DW_AT_name
+ .byte 0 # DW_AT_decl_file
+ .byte 1 # DW_AT_decl_line
+ .long 78 # DW_AT_type
+ # DW_AT_declaration
+ # DW_AT_external
+ .byte 6 # Abbrev [6] 0x48:0x5 DW_TAG_formal_parameter
+ .long 78 # DW_AT_type
+ .byte 0 # End Of Children Mark
+ .byte 7 # Abbrev [7] 0x4e:0x4 DW_TAG_base_type
+ .byte 5 # DW_AT_name
+ .byte 5 # DW_AT_encoding
+ .byte 4 # DW_AT_byte_size
+ .byte 0 # End Of Children Mark
+.Ldebug_info_end0:
+ .section .debug_str_offsets,"",@progbits
+ .long 32 # Length of String Offsets Set
+ .short 5
+ .short 0
+.Lstr_offsets_base0:
+ .section .debug_str,"MS",@progbits,1
+.Linfo_string0:
+ .asciz "clang version 20.1.8 (CentOS 20.1.8-1.el9)" # string offset=0
+.Linfo_string1:
+ .asciz "main.cpp" # string offset=43
+.Linfo_string2:
+ .asciz "/home/gpastukhov/tmp2" # string offset=52
+.Linfo_string3:
+ .asciz "_Z3fooi" # string offset=74
+.Linfo_string4:
+ .asciz "foo" # string offset=82
+.Linfo_string5:
+ .asciz "int" # string offset=86
+.Linfo_string6:
+ .asciz "main" # string offset=90
+ .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
+ .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 .Ltmp1
+.Ldebug_addr_end0:
+ .ident "clang version 20.1.8 (CentOS 20.1.8-1.el9)"
+ .section ".note.GNU-stack","",@progbits
+ .addrsig
+ .section .debug_line,"",@progbits
+.Lline_table_start0:
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-31 14:54:56 +0000