[llvm] [Object] Handle SHT_CREL relocation sections when resolving relocation data (PR #141843)

Zequan Wu via llvm-commits llvm-commits at lists.llvm.org
Thu May 29 11:20:00 PDT 2025


https://github.com/ZequanWu updated https://github.com/llvm/llvm-project/pull/141843

>From 88a4e6d3205ccf67fd762f5bb589da9cc548511d Mon Sep 17 00:00:00 2001
From: Zequan Wu <zequanwu at google.com>
Date: Wed, 28 May 2025 12:56:07 -0700
Subject: [PATCH 1/2] [Object] Handle SHT_CREL relocation sections when
 resolving relocation data

---
 llvm/lib/Object/RelocationResolver.cpp        |   3 +-
 .../llvm-dwarfdump/X86/debug_info_crel.s      | 288 ++++++++++++++++++
 2 files changed, 290 insertions(+), 1 deletion(-)
 create mode 100644 llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s

diff --git a/llvm/lib/Object/RelocationResolver.cpp b/llvm/lib/Object/RelocationResolver.cpp
index a28f5943c320d..8cf748aa5681c 100644
--- a/llvm/lib/Object/RelocationResolver.cpp
+++ b/llvm/lib/Object/RelocationResolver.cpp
@@ -888,7 +888,8 @@ uint64_t resolveRelocation(RelocationResolver Resolver, const RelocationRef &R,
         return Elf64BEObj->getRelSection(R.getRawDataRefImpl())->sh_type;
       };
 
-      if (GetRelSectionType() == ELF::SHT_RELA) {
+      if (GetRelSectionType() == ELF::SHT_RELA ||
+          GetRelSectionType() == ELF::SHT_CREL) {
         Addend = getELFAddend(R);
         // LoongArch and RISCV relocations use both LocData and Addend.
         if (Obj->getArch() != Triple::loongarch32 &&
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s b/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s
new file mode 100644
index 0000000000000..b21018d10361f
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s
@@ -0,0 +1,288 @@
+# Test llvm-dwarfdump handles CREL relocation sections correctly.
+# Generated from the following code and command:
+# $ clang++ -O1 -Wa,--crel,--allow-experimental-crel -g -S foo.cpp -o foo.s
+# int foo(bool b, int x) {
+#   if (b)
+#     return x;
+#   else
+#     return x + 1;
+# }
+
+# RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t
+# RUN: llvm-dwarfdump --debug-info %t | FileCheck %s
+# CHECK:      DW_AT_producer    ("clang version
+# CHECK-NEXT: DW_AT_language    (DW_LANG_C_plus_plus_14)
+# CHECK-NEXT: DW_AT_name        ("foo.cpp")
+# CHECK-NEXT: DW_AT_str_offsets_base    (0x00000008)
+# CHECK-NEXT: DW_AT_stmt_list   (0x00000000)
+# CHECK-NEXT: DW_AT_comp_dir    ("/tmp")
+# CHECK-NEXT: DW_AT_low_pc      (0x0000000000000000)
+# CHECK-NEXT: DW_AT_high_pc     (0x000000000000000b)
+# CHECK-NEXT: DW_AT_addr_base   (0x00000008)
+# CHECK-NEXT: DW_AT_loclists_base       (0x0000000c)
+
+	.file	"foo.cpp"
+	.text
+	.globl	_Z3foobi                        # -- Begin function _Z3foobi
+	.p2align	4
+	.type	_Z3foobi, at function
+_Z3foobi:                               # @_Z3foobi
+.Lfunc_begin0:
+	.file	0 "/tmp" "foo.cpp" md5 0x33d1d90807761bceb53376a52dc68c38
+	.cfi_startproc
+# %bb.0:                                # %entry
+	#DEBUG_VALUE: foo:b <- [DW_OP_LLVM_convert 1 7, DW_OP_LLVM_convert 8 7, DW_OP_stack_value] $edi
+	#DEBUG_VALUE: foo:x <- $esi
+	.loc	0 2 7 prologue_end              # foo.cpp:2:7
+	xorb	$1, %dil
+.Ltmp0:
+	movzbl	%dil, %eax
+	addl	%esi, %eax
+.Ltmp1:
+	.loc	0 6 1                           # foo.cpp:6:1
+	retq
+.Ltmp2:
+.Lfunc_end0:
+	.size	_Z3foobi, .Lfunc_end0-_Z3foobi
+	.cfi_endproc
+                                        # -- End function
+	.section	.debug_loclists,"", at progbits
+	.long	.Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length
+.Ldebug_list_header_start0:
+	.short	5                               # Version
+	.byte	8                               # Address size
+	.byte	0                               # Segment selector size
+	.long	1                               # Offset entry count
+.Lloclists_table_base0:
+	.long	.Ldebug_loc0-.Lloclists_table_base0
+.Ldebug_loc0:
+	.byte	4                               # DW_LLE_offset_pair
+	.uleb128 .Lfunc_begin0-.Lfunc_begin0    #   starting offset
+	.uleb128 .Ltmp0-.Lfunc_begin0           #   ending offset
+	.byte	20                              # Loc expr size
+	.byte	117                             # DW_OP_breg5
+	.byte	0                               # 0
+	.byte	16                              # DW_OP_constu
+	.byte	255                             # 4294967295
+	.byte	255                             # 
+	.byte	255                             # 
+	.byte	255                             # 
+	.byte	15                              # 
+	.byte	26                              # DW_OP_and
+	.byte	168                             # DW_OP_convert
+	.asciz	"\247\200\200"                  # 
+	.byte	168                             # DW_OP_convert
+	.asciz	"\253\200\200"                  # 
+	.byte	159                             # DW_OP_stack_value
+	.byte	0                               # DW_LLE_end_of_list
+.Ldebug_list_header_end0:
+	.section	.debug_abbrev,"", at 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
+	.ascii	"\214\001"                      # DW_AT_loclists_base
+	.byte	23                              # DW_FORM_sec_offset
+	.byte	0                               # EOM(1)
+	.byte	0                               # EOM(2)
+	.byte	2                               # 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	3                               # 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	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	63                              # DW_AT_external
+	.byte	25                              # DW_FORM_flag_present
+	.byte	0                               # EOM(1)
+	.byte	0                               # EOM(2)
+	.byte	4                               # Abbreviation Code
+	.byte	5                               # DW_TAG_formal_parameter
+	.byte	0                               # DW_CHILDREN_no
+	.byte	2                               # DW_AT_location
+	.byte	34                              # DW_FORM_loclistx
+	.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	0                               # EOM(1)
+	.byte	0                               # EOM(2)
+	.byte	5                               # Abbreviation Code
+	.byte	5                               # DW_TAG_formal_parameter
+	.byte	0                               # DW_CHILDREN_no
+	.byte	2                               # DW_AT_location
+	.byte	24                              # DW_FORM_exprloc
+	.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	0                               # EOM(1)
+	.byte	0                               # EOM(2)
+	.byte	0                               # EOM(3)
+	.section	.debug_info,"", at 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:0x50 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
+	.long	.Lloclists_table_base0          # DW_AT_loclists_base
+	.byte	2                               # Abbrev [2] 0x27:0x4 DW_TAG_base_type
+	.byte	4                               # DW_AT_name
+	.byte	7                               # DW_AT_encoding
+	.byte	1                               # DW_AT_byte_size
+	.byte	2                               # Abbrev [2] 0x2b:0x4 DW_TAG_base_type
+	.byte	3                               # DW_AT_name
+	.byte	7                               # DW_AT_encoding
+	.byte	1                               # DW_AT_byte_size
+	.byte	3                               # Abbrev [3] 0x2f:0x24 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	5                               # DW_AT_linkage_name
+	.byte	6                               # DW_AT_name
+	.byte	0                               # DW_AT_decl_file
+	.byte	1                               # DW_AT_decl_line
+	.long	83                              # DW_AT_type
+                                        # DW_AT_external
+	.byte	4                               # Abbrev [4] 0x3f:0x9 DW_TAG_formal_parameter
+	.byte	0                               # DW_AT_location
+	.byte	8                               # DW_AT_name
+	.byte	0                               # DW_AT_decl_file
+	.byte	1                               # DW_AT_decl_line
+	.long	87                              # DW_AT_type
+	.byte	5                               # Abbrev [5] 0x48:0xa DW_TAG_formal_parameter
+	.byte	1                               # DW_AT_location
+	.byte	84
+	.byte	10                              # DW_AT_name
+	.byte	0                               # DW_AT_decl_file
+	.byte	1                               # DW_AT_decl_line
+	.long	83                              # DW_AT_type
+	.byte	0                               # End Of Children Mark
+	.byte	2                               # Abbrev [2] 0x53:0x4 DW_TAG_base_type
+	.byte	7                               # DW_AT_name
+	.byte	5                               # DW_AT_encoding
+	.byte	4                               # DW_AT_byte_size
+	.byte	2                               # Abbrev [2] 0x57:0x4 DW_TAG_base_type
+	.byte	9                               # DW_AT_name
+	.byte	2                               # DW_AT_encoding
+	.byte	1                               # DW_AT_byte_size
+	.byte	0                               # End Of Children Mark
+.Ldebug_info_end0:
+	.section	.debug_str_offsets,"", at progbits
+	.long	48                              # Length of String Offsets Set
+	.short	5
+	.short	0
+.Lstr_offsets_base0:
+	.section	.debug_str,"MS", at progbits,1
+.Linfo_string0:
+	.asciz	"clang version 21.0.0git (git at github.com:ZequanWu/llvm-project.git 317f3bdcc1f96586489a9e48b494e593592b68cf)" # string offset=0
+.Linfo_string1:
+	.asciz	"foo.cpp"                       # string offset=108
+.Linfo_string2:
+	.asciz	"/tmp"                          # string offset=116
+.Linfo_string3:
+	.asciz	"DW_ATE_unsigned_8"             # string offset=121
+.Linfo_string4:
+	.asciz	"DW_ATE_unsigned_1"             # string offset=139
+.Linfo_string5:
+	.asciz	"_Z3foobi"                      # string offset=157
+.Linfo_string6:
+	.asciz	"foo"                           # string offset=166
+.Linfo_string7:
+	.asciz	"int"                           # string offset=170
+.Linfo_string8:
+	.asciz	"b"                             # string offset=174
+.Linfo_string9:
+	.asciz	"bool"                          # string offset=176
+.Linfo_string10:
+	.asciz	"x"                             # string offset=181
+	.section	.debug_str_offsets,"", at 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,"", at 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
+.Ldebug_addr_end0:
+	.ident	"clang version 21.0.0git (git at github.com:ZequanWu/llvm-project.git 317f3bdcc1f96586489a9e48b494e593592b68cf)"
+	.section	".note.GNU-stack","", at progbits
+	.addrsig
+	.section	.debug_line,"", at progbits
+.Lline_table_start0:

>From e5bb53714aea3843256d564dccab80527c76099b Mon Sep 17 00:00:00 2001
From: Zequan Wu <zequanwu at google.com>
Date: Thu, 29 May 2025 11:19:46 -0700
Subject: [PATCH 2/2] use a simpler test

---
 .../llvm-dwarfdump/X86/debug_info_crel.s      | 288 ------------------
 .../llvm-dwarfdump/X86/debug_info_crel.test   |   5 +
 2 files changed, 5 insertions(+), 288 deletions(-)
 delete mode 100644 llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s
 create mode 100644 llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.test

diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s b/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s
deleted file mode 100644
index b21018d10361f..0000000000000
--- a/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.s
+++ /dev/null
@@ -1,288 +0,0 @@
-# Test llvm-dwarfdump handles CREL relocation sections correctly.
-# Generated from the following code and command:
-# $ clang++ -O1 -Wa,--crel,--allow-experimental-crel -g -S foo.cpp -o foo.s
-# int foo(bool b, int x) {
-#   if (b)
-#     return x;
-#   else
-#     return x + 1;
-# }
-
-# RUN: llvm-mc %s -filetype=obj -triple=x86_64-pc-linux -o %t
-# RUN: llvm-dwarfdump --debug-info %t | FileCheck %s
-# CHECK:      DW_AT_producer    ("clang version
-# CHECK-NEXT: DW_AT_language    (DW_LANG_C_plus_plus_14)
-# CHECK-NEXT: DW_AT_name        ("foo.cpp")
-# CHECK-NEXT: DW_AT_str_offsets_base    (0x00000008)
-# CHECK-NEXT: DW_AT_stmt_list   (0x00000000)
-# CHECK-NEXT: DW_AT_comp_dir    ("/tmp")
-# CHECK-NEXT: DW_AT_low_pc      (0x0000000000000000)
-# CHECK-NEXT: DW_AT_high_pc     (0x000000000000000b)
-# CHECK-NEXT: DW_AT_addr_base   (0x00000008)
-# CHECK-NEXT: DW_AT_loclists_base       (0x0000000c)
-
-	.file	"foo.cpp"
-	.text
-	.globl	_Z3foobi                        # -- Begin function _Z3foobi
-	.p2align	4
-	.type	_Z3foobi, at function
-_Z3foobi:                               # @_Z3foobi
-.Lfunc_begin0:
-	.file	0 "/tmp" "foo.cpp" md5 0x33d1d90807761bceb53376a52dc68c38
-	.cfi_startproc
-# %bb.0:                                # %entry
-	#DEBUG_VALUE: foo:b <- [DW_OP_LLVM_convert 1 7, DW_OP_LLVM_convert 8 7, DW_OP_stack_value] $edi
-	#DEBUG_VALUE: foo:x <- $esi
-	.loc	0 2 7 prologue_end              # foo.cpp:2:7
-	xorb	$1, %dil
-.Ltmp0:
-	movzbl	%dil, %eax
-	addl	%esi, %eax
-.Ltmp1:
-	.loc	0 6 1                           # foo.cpp:6:1
-	retq
-.Ltmp2:
-.Lfunc_end0:
-	.size	_Z3foobi, .Lfunc_end0-_Z3foobi
-	.cfi_endproc
-                                        # -- End function
-	.section	.debug_loclists,"", at progbits
-	.long	.Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length
-.Ldebug_list_header_start0:
-	.short	5                               # Version
-	.byte	8                               # Address size
-	.byte	0                               # Segment selector size
-	.long	1                               # Offset entry count
-.Lloclists_table_base0:
-	.long	.Ldebug_loc0-.Lloclists_table_base0
-.Ldebug_loc0:
-	.byte	4                               # DW_LLE_offset_pair
-	.uleb128 .Lfunc_begin0-.Lfunc_begin0    #   starting offset
-	.uleb128 .Ltmp0-.Lfunc_begin0           #   ending offset
-	.byte	20                              # Loc expr size
-	.byte	117                             # DW_OP_breg5
-	.byte	0                               # 0
-	.byte	16                              # DW_OP_constu
-	.byte	255                             # 4294967295
-	.byte	255                             # 
-	.byte	255                             # 
-	.byte	255                             # 
-	.byte	15                              # 
-	.byte	26                              # DW_OP_and
-	.byte	168                             # DW_OP_convert
-	.asciz	"\247\200\200"                  # 
-	.byte	168                             # DW_OP_convert
-	.asciz	"\253\200\200"                  # 
-	.byte	159                             # DW_OP_stack_value
-	.byte	0                               # DW_LLE_end_of_list
-.Ldebug_list_header_end0:
-	.section	.debug_abbrev,"", at 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
-	.ascii	"\214\001"                      # DW_AT_loclists_base
-	.byte	23                              # DW_FORM_sec_offset
-	.byte	0                               # EOM(1)
-	.byte	0                               # EOM(2)
-	.byte	2                               # 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	3                               # 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	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	63                              # DW_AT_external
-	.byte	25                              # DW_FORM_flag_present
-	.byte	0                               # EOM(1)
-	.byte	0                               # EOM(2)
-	.byte	4                               # Abbreviation Code
-	.byte	5                               # DW_TAG_formal_parameter
-	.byte	0                               # DW_CHILDREN_no
-	.byte	2                               # DW_AT_location
-	.byte	34                              # DW_FORM_loclistx
-	.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	0                               # EOM(1)
-	.byte	0                               # EOM(2)
-	.byte	5                               # Abbreviation Code
-	.byte	5                               # DW_TAG_formal_parameter
-	.byte	0                               # DW_CHILDREN_no
-	.byte	2                               # DW_AT_location
-	.byte	24                              # DW_FORM_exprloc
-	.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	0                               # EOM(1)
-	.byte	0                               # EOM(2)
-	.byte	0                               # EOM(3)
-	.section	.debug_info,"", at 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:0x50 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
-	.long	.Lloclists_table_base0          # DW_AT_loclists_base
-	.byte	2                               # Abbrev [2] 0x27:0x4 DW_TAG_base_type
-	.byte	4                               # DW_AT_name
-	.byte	7                               # DW_AT_encoding
-	.byte	1                               # DW_AT_byte_size
-	.byte	2                               # Abbrev [2] 0x2b:0x4 DW_TAG_base_type
-	.byte	3                               # DW_AT_name
-	.byte	7                               # DW_AT_encoding
-	.byte	1                               # DW_AT_byte_size
-	.byte	3                               # Abbrev [3] 0x2f:0x24 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	5                               # DW_AT_linkage_name
-	.byte	6                               # DW_AT_name
-	.byte	0                               # DW_AT_decl_file
-	.byte	1                               # DW_AT_decl_line
-	.long	83                              # DW_AT_type
-                                        # DW_AT_external
-	.byte	4                               # Abbrev [4] 0x3f:0x9 DW_TAG_formal_parameter
-	.byte	0                               # DW_AT_location
-	.byte	8                               # DW_AT_name
-	.byte	0                               # DW_AT_decl_file
-	.byte	1                               # DW_AT_decl_line
-	.long	87                              # DW_AT_type
-	.byte	5                               # Abbrev [5] 0x48:0xa DW_TAG_formal_parameter
-	.byte	1                               # DW_AT_location
-	.byte	84
-	.byte	10                              # DW_AT_name
-	.byte	0                               # DW_AT_decl_file
-	.byte	1                               # DW_AT_decl_line
-	.long	83                              # DW_AT_type
-	.byte	0                               # End Of Children Mark
-	.byte	2                               # Abbrev [2] 0x53:0x4 DW_TAG_base_type
-	.byte	7                               # DW_AT_name
-	.byte	5                               # DW_AT_encoding
-	.byte	4                               # DW_AT_byte_size
-	.byte	2                               # Abbrev [2] 0x57:0x4 DW_TAG_base_type
-	.byte	9                               # DW_AT_name
-	.byte	2                               # DW_AT_encoding
-	.byte	1                               # DW_AT_byte_size
-	.byte	0                               # End Of Children Mark
-.Ldebug_info_end0:
-	.section	.debug_str_offsets,"", at progbits
-	.long	48                              # Length of String Offsets Set
-	.short	5
-	.short	0
-.Lstr_offsets_base0:
-	.section	.debug_str,"MS", at progbits,1
-.Linfo_string0:
-	.asciz	"clang version 21.0.0git (git at github.com:ZequanWu/llvm-project.git 317f3bdcc1f96586489a9e48b494e593592b68cf)" # string offset=0
-.Linfo_string1:
-	.asciz	"foo.cpp"                       # string offset=108
-.Linfo_string2:
-	.asciz	"/tmp"                          # string offset=116
-.Linfo_string3:
-	.asciz	"DW_ATE_unsigned_8"             # string offset=121
-.Linfo_string4:
-	.asciz	"DW_ATE_unsigned_1"             # string offset=139
-.Linfo_string5:
-	.asciz	"_Z3foobi"                      # string offset=157
-.Linfo_string6:
-	.asciz	"foo"                           # string offset=166
-.Linfo_string7:
-	.asciz	"int"                           # string offset=170
-.Linfo_string8:
-	.asciz	"b"                             # string offset=174
-.Linfo_string9:
-	.asciz	"bool"                          # string offset=176
-.Linfo_string10:
-	.asciz	"x"                             # string offset=181
-	.section	.debug_str_offsets,"", at 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,"", at 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
-.Ldebug_addr_end0:
-	.ident	"clang version 21.0.0git (git at github.com:ZequanWu/llvm-project.git 317f3bdcc1f96586489a9e48b494e593592b68cf)"
-	.section	".note.GNU-stack","", at progbits
-	.addrsig
-	.section	.debug_line,"", at progbits
-.Lline_table_start0:
diff --git a/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.test b/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.test
new file mode 100644
index 0000000000000..f9d1b20bef623
--- /dev/null
+++ b/llvm/test/tools/llvm-dwarfdump/X86/debug_info_crel.test
@@ -0,0 +1,5 @@
+# Test llvm-dwarfdump handles CREL relocation sections correctly.
+RUN: echo "void foo(){}" | clang++  -Wa,--crel,--allow-experimental-crel -g -c -x c++ - -o %t
+RUN: llvm-dwarfdump --debug-info %t | FileCheck %s
+
+CHECK: DW_AT_producer    ("clang version



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