[BOLT][DWARF][NFC] Add split-dwarf4 test with multiple CUs #93741
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@llvm/pr-subscribers-bolt Author: Sayhaan Siddiqui (sayhaan) ChangesAdds a split-dwarf test for DWARF4 with multiple CUs. Patch is 36.35 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/93741.diff 2 Files Affected:
diff --git a/bolt/test/X86/Inputs/dwarf4-df-input-lowpc-ranges-other.s b/bolt/test/X86/Inputs/dwarf4-df-input-lowpc-ranges-other.s
new file mode 100644
index 0000000000000..a561bd7d2f74f
--- /dev/null
+++ b/bolt/test/X86/Inputs/dwarf4-df-input-lowpc-ranges-other.s
@@ -0,0 +1,705 @@
+# clang++ -fbasic-block-sections=all -ffunction-sections -g2 -gdwarf-4 -gsplit-dwarf
+# __attribute__((always_inline))
+# int doStuffOther(int val) {
+# if (val)
+# ++val;
+# return val;
+# }
+# __attribute__((always_inline))
+# int doStuffOther2(int val) {
+# int foo = 3;
+# return val + foo;
+# }
+#
+#
+# int mainOther(int argc, const char** argv) {
+# return doStuffOther(argc) + doStuffOther2(argc);;
+# }
+
+ .text
+ .file "mainOther.cpp"
+ .section .text._Z7doStuffOtheri,"ax",@progbits
+ .globl _Z7doStuffOtheri # -- Begin function _Z7doStuffOtheri
+ .p2align 4, 0x90
+ .type _Z7doStuffOtheri,@function
+_Z7doStuffOtheri: # @_Z7doStuffOtheri
+.Lfunc_begin0:
+ .file 1 "." "mainOther.cpp"
+ .loc 1 2 0 # mainOther.cpp:2:0
+ .cfi_startproc
+# %bb.0: # %entry
+ pushq %rbp
+ .cfi_def_cfa_offset 16
+ .cfi_offset %rbp, -16
+ movq %rsp, %rbp
+ .cfi_def_cfa_register %rbp
+ movl %edi, -4(%rbp)
+.Ltmp0:
+ .loc 1 3 7 prologue_end # mainOther.cpp:3:7
+ cmpl $0, -4(%rbp)
+.Ltmp1:
+ .loc 1 3 7 is_stmt 0 # mainOther.cpp:3:7
+ je _Z7doStuffOtheri.__part.2
+ jmp _Z7doStuffOtheri.__part.1
+.LBB_END0_0:
+ .cfi_endproc
+ .section .text._Z7doStuffOtheri,"ax",@progbits,unique,1
+_Z7doStuffOtheri.__part.1: # %if.then
+ .cfi_startproc
+ .cfi_def_cfa %rbp, 16
+ .cfi_offset %rbp, -16
+ .loc 1 4 5 is_stmt 1 # mainOther.cpp:4:5
+ movl -4(%rbp), %eax
+ addl $1, %eax
+ movl %eax, -4(%rbp)
+ jmp _Z7doStuffOtheri.__part.2
+.LBB_END0_1:
+ .size _Z7doStuffOtheri.__part.1, .LBB_END0_1-_Z7doStuffOtheri.__part.1
+ .cfi_endproc
+ .section .text._Z7doStuffOtheri,"ax",@progbits,unique,2
+_Z7doStuffOtheri.__part.2: # %if.end
+ .cfi_startproc
+ .cfi_def_cfa %rbp, 16
+ .cfi_offset %rbp, -16
+ .loc 1 5 10 # mainOther.cpp:5:10
+ movl -4(%rbp), %eax
+ .loc 1 5 3 epilogue_begin is_stmt 0 # mainOther.cpp:5:3
+ popq %rbp
+ .cfi_def_cfa %rsp, 8
+ retq
+.LBB_END0_2:
+ .size _Z7doStuffOtheri.__part.2, .LBB_END0_2-_Z7doStuffOtheri.__part.2
+ .cfi_endproc
+ .section .text._Z7doStuffOtheri,"ax",@progbits
+.Lfunc_end0:
+ .size _Z7doStuffOtheri, .Lfunc_end0-_Z7doStuffOtheri
+ # -- End function
+ .section .text._Z8doStuffOther2i,"ax",@progbits
+ .globl _Z8doStuffOther2i # -- Begin function _Z8doStuffOther2i
+ .p2align 4, 0x90
+ .type _Z8doStuffOther2i,@function
+_Z8doStuffOther2i: # @_Z8doStuffOther2i
+.Lfunc_begin1:
+ .loc 1 8 0 is_stmt 1 # mainOther.cpp:8:0
+ .cfi_startproc
+# %bb.0: # %entry
+ pushq %rbp
+ .cfi_def_cfa_offset 16
+ .cfi_offset %rbp, -16
+ movq %rsp, %rbp
+ .cfi_def_cfa_register %rbp
+ movl %edi, -4(%rbp)
+.Ltmp2:
+ .loc 1 9 7 prologue_end # mainOther.cpp:9:7
+ movl $3, -8(%rbp)
+ .loc 1 10 10 # mainOther.cpp:10:10
+ movl -4(%rbp), %eax
+ .loc 1 10 14 is_stmt 0 # mainOther.cpp:10:14
+ addl -8(%rbp), %eax
+ .loc 1 10 3 epilogue_begin # mainOther.cpp:10:3
+ popq %rbp
+ .cfi_def_cfa %rsp, 8
+ retq
+.LBB_END1_0:
+ .cfi_endproc
+.Lfunc_end1:
+ .size _Z8doStuffOther2i, .Lfunc_end1-_Z8doStuffOther2i
+ # -- End function
+ .section .text.mainOther,"ax",@progbits
+ .globl mainOther # -- Begin function mainOther
+ .p2align 4, 0x90
+ .type mainOther,@function
+mainOther: # @mainOther
+.Lfunc_begin2:
+ .loc 1 14 0 is_stmt 1 # mainOther.cpp:14:0
+ .cfi_startproc
+# %bb.0: # %entry
+ pushq %rbp
+ .cfi_def_cfa_offset 16
+ .cfi_offset %rbp, -16
+ movq %rsp, %rbp
+ .cfi_def_cfa_register %rbp
+ movl $0, -16(%rbp)
+ movl %edi, -20(%rbp)
+ movq %rsi, -32(%rbp)
+.Ltmp3:
+ .loc 1 15 21 prologue_end # mainOther.cpp:15:21
+ movl -20(%rbp), %eax
+ movl %eax, -12(%rbp)
+.Ltmp4:
+ .loc 1 3 7 # mainOther.cpp:3:7
+ cmpl $0, -12(%rbp)
+.Ltmp5:
+ .loc 1 3 7 is_stmt 0 # mainOther.cpp:3:7
+ je mainOther.__part.2
+ jmp mainOther.__part.1
+.LBB_END2_0:
+ .cfi_endproc
+ .section .text.mainOther,"ax",@progbits,unique,3
+mainOther.__part.1: # %if.then.i
+ .cfi_startproc
+ .cfi_def_cfa %rbp, 16
+ .cfi_offset %rbp, -16
+ .loc 1 4 5 is_stmt 1 # mainOther.cpp:4:5
+ movl -12(%rbp), %eax
+ addl $1, %eax
+ movl %eax, -12(%rbp)
+ jmp mainOther.__part.2
+.LBB_END2_1:
+ .size mainOther.__part.1, .LBB_END2_1-mainOther.__part.1
+ .cfi_endproc
+ .section .text.mainOther,"ax",@progbits,unique,4
+mainOther.__part.2: # %_Z7doStuffOtheri.exit
+ .cfi_startproc
+ .cfi_def_cfa %rbp, 16
+ .cfi_offset %rbp, -16
+ .loc 1 5 10 # mainOther.cpp:5:10
+ movl -12(%rbp), %eax
+.Ltmp6:
+ .loc 1 15 38 # mainOther.cpp:15:38
+ movl -20(%rbp), %ecx
+ movl %ecx, -4(%rbp)
+.Ltmp7:
+ .loc 1 9 7 # mainOther.cpp:9:7
+ movl $3, -8(%rbp)
+ .loc 1 10 10 # mainOther.cpp:10:10
+ movl -4(%rbp), %ecx
+ .loc 1 10 14 is_stmt 0 # mainOther.cpp:10:14
+ addl -8(%rbp), %ecx
+.Ltmp8:
+ .loc 1 15 27 is_stmt 1 # mainOther.cpp:15:27
+ addl %ecx, %eax
+ .loc 1 15 5 epilogue_begin is_stmt 0 # mainOther.cpp:15:5
+ popq %rbp
+ .cfi_def_cfa %rsp, 8
+ retq
+.LBB_END2_2:
+ .size mainOther.__part.2, .LBB_END2_2-mainOther.__part.2
+ .cfi_endproc
+ .section .text.mainOther,"ax",@progbits
+.Lfunc_end2:
+ .size mainOther, .Lfunc_end2-mainOther
+ # -- End function
+ .section .debug_abbrev,"",@progbits
+ .byte 1 # Abbreviation Code
+ .byte 17 # DW_TAG_compile_unit
+ .byte 0 # DW_CHILDREN_no
+ .byte 16 # DW_AT_stmt_list
+ .byte 23 # DW_FORM_sec_offset
+ .byte 27 # DW_AT_comp_dir
+ .byte 14 # DW_FORM_strp
+ .ascii "\264B" # DW_AT_GNU_pubnames
+ .byte 25 # DW_FORM_flag_present
+ .ascii "\260B" # DW_AT_GNU_dwo_name
+ .byte 14 # DW_FORM_strp
+ .ascii "\261B" # DW_AT_GNU_dwo_id
+ .byte 7 # DW_FORM_data8
+ .ascii "\262B" # DW_AT_GNU_ranges_base
+ .byte 23 # DW_FORM_sec_offset
+ .byte 17 # DW_AT_low_pc
+ .byte 1 # DW_FORM_addr
+ .byte 85 # DW_AT_ranges
+ .byte 23 # DW_FORM_sec_offset
+ .ascii "\263B" # DW_AT_GNU_addr_base
+ .byte 23 # DW_FORM_sec_offset
+ .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 4 # DWARF version number
+ .long .debug_abbrev # Offset Into Abbrev. Section
+ .byte 8 # Address Size (in bytes)
+ .byte 1 # Abbrev [1] 0xb:0x29 DW_TAG_compile_unit
+ .long .Lline_table_start0 # DW_AT_stmt_list
+ .long .Lskel_string0 # DW_AT_comp_dir
+ # DW_AT_GNU_pubnames
+ .long .Lskel_string1 # DW_AT_GNU_dwo_name
+ .quad 1354107878901449185 # DW_AT_GNU_dwo_id
+ .long .debug_ranges # DW_AT_GNU_ranges_base
+ .quad 0 # DW_AT_low_pc
+ .long .Ldebug_ranges3 # DW_AT_ranges
+ .long .Laddr_table_base0 # DW_AT_GNU_addr_base
+.Ldebug_info_end0:
+ .section .debug_ranges,"",@progbits
+.Ldebug_ranges0:
+ .quad _Z7doStuffOtheri.__part.1
+ .quad .LBB_END0_1
+ .quad _Z7doStuffOtheri.__part.2
+ .quad .LBB_END0_2
+ .quad .Lfunc_begin0
+ .quad .Lfunc_end0
+ .quad 0
+ .quad 0
+.Ldebug_ranges1:
+ .quad mainOther.__part.1
+ .quad .LBB_END2_1
+ .quad mainOther.__part.2
+ .quad .LBB_END2_2
+ .quad .Lfunc_begin2
+ .quad .Lfunc_end2
+ .quad 0
+ .quad 0
+.Ldebug_ranges2:
+ .quad .Ltmp4
+ .quad .Lfunc_end2
+ .quad mainOther.__part.1
+ .quad .LBB_END2_1
+ .quad mainOther.__part.2
+ .quad .Ltmp6
+ .quad 0
+ .quad 0
+.Ldebug_ranges3:
+ .quad _Z7doStuffOtheri.__part.1
+ .quad .LBB_END0_1
+ .quad _Z7doStuffOtheri.__part.2
+ .quad .LBB_END0_2
+ .quad .Lfunc_begin0
+ .quad .Lfunc_end0
+ .quad .Lfunc_begin1
+ .quad .Lfunc_end1
+ .quad mainOther.__part.1
+ .quad .LBB_END2_1
+ .quad mainOther.__part.2
+ .quad .LBB_END2_2
+ .quad .Lfunc_begin2
+ .quad .Lfunc_end2
+ .quad 0
+ .quad 0
+ .section .debug_str,"MS",@progbits,1
+.Lskel_string0:
+ .asciz "." # string offset=0
+.Lskel_string1:
+ .asciz "mainOther.dwo" # string offset=38
+ .section .debug_str.dwo,"eMS",@progbits,1
+.Linfo_string0:
+ .asciz "_Z7doStuffOtheri" # string offset=0
+.Linfo_string1:
+ .asciz "doStuffOther" # string offset=12
+.Linfo_string2:
+ .asciz "int" # string offset=20
+.Linfo_string3:
+ .asciz "val" # string offset=24
+.Linfo_string4:
+ .asciz "_Z8doStuffOther2i" # string offset=28
+.Linfo_string5:
+ .asciz "doStuffOther2" # string offset=41
+.Linfo_string6:
+ .asciz "foo" # string offset=50
+.Linfo_string7:
+ .asciz "mainOther" # string offset=54
+.Linfo_string8:
+ .asciz "argc" # string offset=59
+.Linfo_string9:
+ .asciz "argv" # string offset=64
+.Linfo_string10:
+ .asciz "char" # string offset=69
+.Linfo_string11:
+ .asciz "clang version 18.0.0 ([email protected]:llvm/llvm-project.git 3a8db0f4bfb57348f49d9603119fa157114bbf8e)" # string offset=74
+.Linfo_string12:
+ .asciz "mainOther.cpp" # string offset=175
+.Linfo_string13:
+ .asciz "mainOther.dwo" # string offset=184
+ .section .debug_str_offsets.dwo,"e",@progbits
+ .long 0
+ .long 12
+ .long 20
+ .long 24
+ .long 28
+ .long 41
+ .long 50
+ .long 54
+ .long 59
+ .long 64
+ .long 69
+ .long 74
+ .long 175
+ .long 184
+ .section .debug_info.dwo,"e",@progbits
+ .long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit
+.Ldebug_info_dwo_start0:
+ .short 4 # DWARF version number
+ .long 0 # Offset Into Abbrev. Section
+ .byte 8 # Address Size (in bytes)
+ .byte 1 # Abbrev [1] 0xb:0xdd DW_TAG_compile_unit
+ .byte 11 # DW_AT_producer
+ .short 33 # DW_AT_language
+ .byte 12 # DW_AT_name
+ .byte 13 # DW_AT_GNU_dwo_name
+ .quad 1354107878901449185 # DW_AT_GNU_dwo_id
+ .byte 2 # Abbrev [2] 0x19:0x14 DW_TAG_subprogram
+ .long .Ldebug_ranges0-.debug_ranges # DW_AT_ranges
+ .byte 1 # DW_AT_frame_base
+ .byte 86
+ .long 74 # DW_AT_abstract_origin
+ .byte 3 # Abbrev [3] 0x24:0x8 DW_TAG_formal_parameter
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 124
+ .long 84 # DW_AT_abstract_origin
+ .byte 0 # End Of Children Mark
+ .byte 4 # Abbrev [4] 0x2d:0x1d DW_TAG_subprogram
+ .byte 3 # DW_AT_low_pc
+ .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc
+ .byte 1 # DW_AT_frame_base
+ .byte 86
+ .long 97 # DW_AT_abstract_origin
+ .byte 3 # Abbrev [3] 0x39:0x8 DW_TAG_formal_parameter
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 124
+ .long 107 # DW_AT_abstract_origin
+ .byte 5 # Abbrev [5] 0x41:0x8 DW_TAG_variable
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 120
+ .long 115 # DW_AT_abstract_origin
+ .byte 0 # End Of Children Mark
+ .byte 6 # Abbrev [6] 0x4a:0x13 DW_TAG_subprogram
+ .byte 0 # DW_AT_linkage_name
+ .byte 1 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 2 # DW_AT_decl_line
+ .long 93 # DW_AT_type
+ # DW_AT_external
+ .byte 1 # DW_AT_inline
+ .byte 7 # Abbrev [7] 0x54:0x8 DW_TAG_formal_parameter
+ .byte 3 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 2 # DW_AT_decl_line
+ .long 93 # DW_AT_type
+ .byte 0 # End Of Children Mark
+ .byte 8 # Abbrev [8] 0x5d:0x4 DW_TAG_base_type
+ .byte 2 # DW_AT_name
+ .byte 5 # DW_AT_encoding
+ .byte 4 # DW_AT_byte_size
+ .byte 6 # Abbrev [6] 0x61:0x1b DW_TAG_subprogram
+ .byte 4 # DW_AT_linkage_name
+ .byte 5 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 8 # DW_AT_decl_line
+ .long 93 # DW_AT_type
+ # DW_AT_external
+ .byte 1 # DW_AT_inline
+ .byte 7 # Abbrev [7] 0x6b:0x8 DW_TAG_formal_parameter
+ .byte 3 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 8 # DW_AT_decl_line
+ .long 93 # DW_AT_type
+ .byte 9 # Abbrev [9] 0x73:0x8 DW_TAG_variable
+ .byte 6 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 9 # DW_AT_decl_line
+ .long 93 # DW_AT_type
+ .byte 0 # End Of Children Mark
+ .byte 10 # Abbrev [10] 0x7c:0x58 DW_TAG_subprogram
+ .long .Ldebug_ranges1-.debug_ranges # DW_AT_ranges
+ .byte 1 # DW_AT_frame_base
+ .byte 86
+ .byte 7 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 14 # DW_AT_decl_line
+ .long 93 # DW_AT_type
+ # DW_AT_external
+ .byte 11 # Abbrev [11] 0x8a:0xb DW_TAG_formal_parameter
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 108
+ .byte 8 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 14 # DW_AT_decl_line
+ .long 93 # DW_AT_type
+ .byte 11 # Abbrev [11] 0x95:0xb DW_TAG_formal_parameter
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 96
+ .byte 9 # DW_AT_name
+ .byte 1 # DW_AT_decl_file
+ .byte 14 # DW_AT_decl_line
+ .long 212 # DW_AT_type
+ .byte 12 # Abbrev [12] 0xa0:0x15 DW_TAG_inlined_subroutine
+ .long 74 # DW_AT_abstract_origin
+ .long .Ldebug_ranges2-.debug_ranges # DW_AT_ranges
+ .byte 1 # DW_AT_call_file
+ .byte 15 # DW_AT_call_line
+ .byte 13 # DW_AT_call_column
+ .byte 3 # Abbrev [3] 0xac:0x8 DW_TAG_formal_parameter
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 116
+ .long 84 # DW_AT_abstract_origin
+ .byte 0 # End Of Children Mark
+ .byte 13 # Abbrev [13] 0xb5:0x1e DW_TAG_inlined_subroutine
+ .long 97 # DW_AT_abstract_origin
+ .byte 7 # DW_AT_low_pc
+ .long .Ltmp8-.Ltmp7 # DW_AT_high_pc
+ .byte 1 # DW_AT_call_file
+ .byte 15 # DW_AT_call_line
+ .byte 29 # DW_AT_call_column
+ .byte 3 # Abbrev [3] 0xc2:0x8 DW_TAG_formal_parameter
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 124
+ .long 107 # DW_AT_abstract_origin
+ .byte 5 # Abbrev [5] 0xca:0x8 DW_TAG_variable
+ .byte 2 # DW_AT_location
+ .byte 145
+ .byte 120
+ .long 115 # DW_AT_abstract_origin
+ .byte 0 # End Of Children Mark
+ .byte 0 # End Of Children Mark
+ .byte 14 # Abbrev [14] 0xd4:0x5 DW_TAG_pointer_type
+ .long 217 # DW_AT_type
+ .byte 14 # Abbrev [14] 0xd9:0x5 DW_TAG_pointer_type
+ .long 222 # DW_AT_type
+ .byte 15 # Abbrev [15] 0xde:0x5 DW_TAG_const_type
+ .long 227 # DW_AT_type
+ .byte 8 # Abbrev [8] 0xe3:0x4 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_dwo_end0:
+ .section .debug_abbrev.dwo,"e",@progbits
+ .byte 1 # Abbreviation Code
+ .byte 17 # DW_TAG_compile_unit
+ .byte 1 # DW_CHILDREN_yes
+ .byte 37 # DW_AT_producer
+ .ascii "\202>" # DW_FORM_GNU_str_index
+ .byte 19 # DW_AT_language
+ .byte 5 # DW_FORM_data2
+ .byte 3 # DW_AT_name
+ .ascii "\202>" # DW_FORM_GNU_str_index
+ .ascii "\260B" # DW_AT_GNU_dwo_name
+ .ascii "\202>" # DW_FORM_GNU_str_index
+ .ascii "\261B" # DW_AT_GNU_dwo_id
+ .byte 7 # DW_FORM_data8
+ .byte 0 # EOM(1)
+ .byte 0 # EOM(2)
+ .byte 2 # Abbreviation Code
+ .byte 46 # DW_TAG_subprogram
+ .byte 1 # DW_CHILDREN_yes
+ .byte 85 # DW_AT_ranges
+ .byte 23 # DW_FORM_sec_offset
+ .byte 64 # DW_AT_frame_base
+ .byte 24 # DW_FORM_exprloc
+ .byte 49 # DW_AT_abstract_origin
+ .byte 19 # DW_FOR...
[truncated]
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Adds a split-dwarf test for DWARF4 with multiple CUs.