derek.holloway
7502bf64a4
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328 lines
15 KiB
ArmAsm
328 lines
15 KiB
ArmAsm
## Test that BOLT correctly handles debug line information for functions
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## that belong to multiple compilation units (e.g., inline functions in
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## common header files). This is the assembly version of the multi-cu-debug-line.test.
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## The test covers two scenarios:
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## 1. Normal processing: .debug_line section shows lines for the function
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## in all CUs where it was compiled, with no duplicate rows within CUs
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## 2. Functions not processed: When BOLT doesn't process functions (using
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## --funcs with nonexistent function), original debug info is preserved
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# REQUIRES: system-linux
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# RUN: split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %t/multi-cu-file1.s -o %t/multi-cu-file1.o
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %t/multi-cu-file2.s -o %t/multi-cu-file2.o
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# RUN: %clang %cflags %t/multi-cu-file1.o %t/multi-cu-file2.o -o %t.exe -Wl,-q
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## Test 1: Normal BOLT processing (functions are processed/optimized)
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# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections
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# RUN: llvm-dwarfdump --debug-line %t.bolt > %t.debug-line.txt
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# RUN: FileCheck %s --check-prefix=BASIC --input-file %t.debug-line.txt
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## Check that debug line information is present for both compilation units
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# BASIC: debug_line[{{.*}}]
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# BASIC: file_names[{{.*}}]:
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# BASIC: name: "{{.*}}multi-cu-file1.c"
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# BASIC: debug_line[{{.*}}]
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# BASIC: file_names[{{.*}}]:
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# BASIC: name: "{{.*}}multi-cu-file2.c"
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## Use our helper script to create a normalized table without addresses
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# RUN: process-debug-line %t.debug-line.txt > %t.normalized-debug-line.txt
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# RUN: FileCheck %s --check-prefix=NORMALIZED --input-file %t.normalized-debug-line.txt
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## Check that we have line entries for the inline function (lines 5, 6, 7) from multi-cu-common.h
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## in both compilation units
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# NORMALIZED: multi-cu-file1.c 5 {{[0-9]+}} multi-cu-common.h
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# NORMALIZED: multi-cu-file1.c 6 {{[0-9]+}} multi-cu-common.h
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# NORMALIZED: multi-cu-file1.c 7 {{[0-9]+}} multi-cu-common.h
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# NORMALIZED: multi-cu-file2.c 5 {{[0-9]+}} multi-cu-common.h
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# NORMALIZED: multi-cu-file2.c 6 {{[0-9]+}} multi-cu-common.h
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# NORMALIZED: multi-cu-file2.c 7 {{[0-9]+}} multi-cu-common.h
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## Verify that we have line entries for the inline function in multiple CUs
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## by checking that the header file appears multiple times in different contexts
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# RUN: grep -c "multi-cu-common.h" %t.debug-line.txt > %t.header-count.txt
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# RUN: FileCheck %s --check-prefix=MULTI-CU --input-file %t.header-count.txt
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## The header should appear in debug line info for multiple CUs
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# MULTI-CU: {{[2-9]|[1-9][0-9]+}}
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## Check that there are no duplicate line table rows within the same CU
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## This verifies the fix for the bug where duplicate entries were created
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# RUN: sort %t.normalized-debug-line.txt | uniq -c | \
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# RUN: awk '$1 > 1 {print "DUPLICATE_ROW: " $0}' > %t.duplicates.txt
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# RUN: FileCheck %s --check-prefix=NO-DUPLICATES --input-file %t.duplicates.txt --allow-empty
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## Should have no duplicate normalized rows (file should be empty)
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## Note: Cross-CU duplicates are expected and valid (same function in different CUs)
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## but within-CU duplicates would indicate a bug
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# NO-DUPLICATES-NOT: DUPLICATE_ROW
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## Test 2: Functions not processed by BOLT (using --funcs with nonexistent function)
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## This tests the code path where BOLT preserves original debug info
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# RUN: llvm-bolt %t.exe -o %t.not-emitted.bolt --update-debug-sections --funcs=nonexistent_function
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# RUN: llvm-dwarfdump --debug-line %t.not-emitted.bolt > %t.not-emitted.debug-line.txt
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# RUN: FileCheck %s --check-prefix=PRESERVED-BASIC --input-file %t.not-emitted.debug-line.txt
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## Check that debug line information is still present for both compilation units when functions aren't processed
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# PRESERVED-BASIC: debug_line[{{.*}}]
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# PRESERVED-BASIC: file_names[{{.*}}]:
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# PRESERVED-BASIC: name: "{{.*}}multi-cu-file1.c"
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# PRESERVED-BASIC: debug_line[{{.*}}]
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# PRESERVED-BASIC: file_names[{{.*}}]:
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# PRESERVED-BASIC: name: "{{.*}}multi-cu-file2.c"
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## Create normalized output for the not-emitted case
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# RUN: process-debug-line %t.not-emitted.debug-line.txt > %t.not-emitted.normalized.txt
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# RUN: FileCheck %s --check-prefix=PRESERVED-NORMALIZED --input-file %t.not-emitted.normalized.txt
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## Check that we have line entries for the inline function (lines 5, 6, 7) from multi-cu-common.h
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## in both compilation units (preserved from original)
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# PRESERVED-NORMALIZED: multi-cu-file1.c 5 {{[0-9]+}} multi-cu-common.h
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# PRESERVED-NORMALIZED: multi-cu-file1.c 6 {{[0-9]+}} multi-cu-common.h
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# PRESERVED-NORMALIZED: multi-cu-file1.c 7 {{[0-9]+}} multi-cu-common.h
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# PRESERVED-NORMALIZED: multi-cu-file2.c 5 {{[0-9]+}} multi-cu-common.h
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# PRESERVED-NORMALIZED: multi-cu-file2.c 6 {{[0-9]+}} multi-cu-common.h
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# PRESERVED-NORMALIZED: multi-cu-file2.c 7 {{[0-9]+}} multi-cu-common.h
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## Verify that we have line entries for the inline function in multiple CUs (preserved)
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## by checking that the header file appears multiple times in different contexts
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# RUN: grep -c "multi-cu-common.h" %t.not-emitted.debug-line.txt > %t.preserved-header-count.txt
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# RUN: FileCheck %s --check-prefix=PRESERVED-MULTI-CU --input-file %t.preserved-header-count.txt
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## The header should appear in debug line info for multiple CUs (preserved from original)
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# PRESERVED-MULTI-CU: {{[2-9]|[1-9][0-9]+}}
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## Check that original debug info is preserved for main functions
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# RUN: grep "multi-cu-file1.c.*multi-cu-file1.c" %t.not-emitted.normalized.txt > %t.preserved-main.txt
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# RUN: FileCheck %s --check-prefix=PRESERVED-MAIN --input-file %t.preserved-main.txt
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# PRESERVED-MAIN: multi-cu-file1.c {{[0-9]+}} {{[0-9]+}} multi-cu-file1.c
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## Check that original debug info is preserved for file2 functions
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# RUN: grep "multi-cu-file2.c.*multi-cu-file2.c" %t.not-emitted.normalized.txt > %t.preserved-file2.txt
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# RUN: FileCheck %s --check-prefix=PRESERVED-FILE2 --input-file %t.preserved-file2.txt
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# PRESERVED-FILE2: multi-cu-file2.c {{[0-9]+}} {{[0-9]+}} multi-cu-file2.c
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;--- multi-cu-file1.s
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.text
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.file 1 "/repo/llvm-project" "bolt/test/Inputs/multi-cu-file1.c"
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.file 2 "/repo/llvm-project" "bolt/test/Inputs/multi-cu-common.h"
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.globl main
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.type main,@function
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main:
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.Lfunc_begin0:
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.loc 1 4 0
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callq common_inline_function
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.loc 1 8 0
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retq
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.Lfunc_end0:
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.size main, .Lfunc_end0-main
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.type common_inline_function,@function
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common_inline_function:
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.Lfunc_begin1:
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.loc 2 5 0
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movl $42, %eax
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.loc 2 6 0
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addl $10, %eax
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.loc 2 7 0
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retq
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.Lfunc_end1:
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.size common_inline_function, .Lfunc_end1-common_inline_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 14 # DW_FORM_strp
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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 14 # DW_FORM_strp
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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 14 # DW_FORM_strp
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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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 0 # DW_CHILDREN_no
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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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 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
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.Ldebug_info_start0:
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.short 4 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] 0xb:0x30 DW_TAG_compile_unit
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.long .Linfo_string0 # DW_AT_producer
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.short 29 # DW_AT_language
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.long .Linfo_string1 # DW_AT_name
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.long .Lline_table_start0 # DW_AT_stmt_list
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.long .Linfo_string2 # DW_AT_comp_dir
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc
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.byte 2 # Abbrev [2] 0x2a:0x10 DW_TAG_subprogram
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.long .Linfo_string3 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.byte 2 # Abbrev [2] 0x3a:0x10 DW_TAG_subprogram
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.quad .Lfunc_begin1 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
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.long .Linfo_string4 # DW_AT_name
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.byte 2 # DW_AT_decl_file
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.byte 5 # DW_AT_decl_line
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.byte 0 # End Of Children Mark
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.Ldebug_info_end0:
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "clang version 18.0.0"
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.Linfo_string1:
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.asciz "/repo/llvm-project/bolt/test/Inputs/multi-cu-file1.c"
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.Linfo_string2:
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.asciz "/repo/llvm-project"
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.Linfo_string3:
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.asciz "main"
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.Linfo_string4:
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.asciz "common_inline_function"
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.section .debug_line,"",@progbits
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.Lline_table_start0:
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;--- multi-cu-file2.s
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.text
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.file 1 "/repo/llvm-project" "bolt/test/Inputs/multi-cu-file2.c"
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.file 2 "/repo/llvm-project" "bolt/test/Inputs/multi-cu-common.h"
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.globl helper_function
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.type helper_function,@function
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helper_function:
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.Lfunc_begin0:
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.loc 1 4 0
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callq common_inline_function
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.loc 1 8 0
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retq
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.Lfunc_end0:
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.size helper_function, .Lfunc_end0-helper_function
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.type common_inline_function,@function
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common_inline_function:
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.Lfunc_begin1:
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.loc 2 5 0
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movl $42, %eax
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.loc 2 6 0
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addl $10, %eax
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.loc 2 7 0
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retq
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.Lfunc_end1:
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.size common_inline_function, .Lfunc_end1-common_inline_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 14 # DW_FORM_strp
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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 14 # DW_FORM_strp
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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 14 # DW_FORM_strp
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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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 0 # DW_CHILDREN_no
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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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 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
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.Ldebug_info_start0:
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.short 4 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] 0xb:0x30 DW_TAG_compile_unit
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.long .Linfo_string0 # DW_AT_producer
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.short 29 # DW_AT_language
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.long .Linfo_string1 # DW_AT_name
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.long .Lline_table_start0 # DW_AT_stmt_list
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.long .Linfo_string2 # DW_AT_comp_dir
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc
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.byte 2 # Abbrev [2] 0x2a:0x10 DW_TAG_subprogram
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.long .Linfo_string3 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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.byte 2 # Abbrev [2] 0x3a:0x10 DW_TAG_subprogram
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.quad .Lfunc_begin1 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
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.long .Linfo_string4 # DW_AT_name
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.byte 2 # DW_AT_decl_file
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.byte 5 # DW_AT_decl_line
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.byte 0 # End Of Children Mark
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.Ldebug_info_end0:
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "clang version 18.0.0"
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.Linfo_string1:
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.asciz "/repo/llvm-project/bolt/test/Inputs/multi-cu-file2.c"
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.Linfo_string2:
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.asciz "/repo/llvm-project"
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.Linfo_string3:
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.asciz "helper_function"
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.Linfo_string4:
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.asciz "common_inline_function"
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.section .debug_line,"",@progbits
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.Lline_table_start0:
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