LoongArch: Assign DWARF register numbers to register aliases

.cfi directives only support the use of register numbers and not
register names or aliases.

This commit adds support for 4 formats, for example:
  .cfi_offset r1, 8
  .cfi_offset ra, 8
  .cfi_offset $r1,8
  .cfi_offset $ra,8

The above .cfi directives are equivalent and all represent dwarf
register number 1.

Display register aliases as specified in the psABI during disassembly.

7 files changed, 845 insertions, 17 deletions

diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index 79a18e3..e8425b9 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -8796,6 +8796,27 @@ init_dwarf_regnames_riscv (void)
   dwarf_regnames_lookup_func = regname_internal_riscv;
 }
 
+static const char *const dwarf_regnames_loongarch[] =
+{
+  "$zero", "$ra", "$tp", "$sp", "$a0", "$a1", "$a2", "$a3",  /* 0-7   */
+  "$a4",   "$a5", "$a6", "$a7", "$t0", "$t1", "$t2", "$t3",  /* 8-15  */
+  "$t4",   "$t5", "$t6", "$t7", "$t8", "$r21","$fp", "$s0",  /* 16-23 */
+  "$s1",   "$s2", "$s3", "$s4", "$s5", "$s6", "$s7", "$s8",  /* 24-31 */
+  "$fa0", "$fa1", "$fa2", "$fa3", "$fa4",  "$fa5",  "$fa6",  /* 32-38 */
+  "$fa7", "$ft0", "$ft1", "$ft2", "$ft3",  "$ft4",  "$ft5",  /* 39-45 */
+  "$ft6", "$ft7", "$ft8", "$ft9", "$ft10", "$ft11", "$ft12", /* 46-52 */
+  "$ft13", "$ft14", "$ft15", "$fs0", "$fs1", "$fs2", "$fs3", /* 53-59 */
+  "$fs4",  "$fs5",  "$fs6",  "$fs7",			     /* 60-63 */
+};
+
+static void
+init_dwarf_regnames_loongarch (void)
+{
+  dwarf_regnames = dwarf_regnames_loongarch;
+  dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_loongarch);
+  dwarf_regnames_lookup_func = regname_internal_by_table_only;
+}
+
 void
 init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine)
 {
@@ -8830,6 +8851,10 @@ init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine)
       init_dwarf_regnames_riscv ();
       break;
 
+    case EM_LOONGARCH:
+      init_dwarf_regnames_loongarch ();
+      break;
+
     default:
       break;
     }
@@ -8879,6 +8904,10 @@ init_dwarf_regnames_by_bfd_arch_and_mach (enum bfd_architecture arch,
       init_dwarf_regnames_riscv ();
       break;
 
+    case bfd_arch_loongarch:
+      init_dwarf_regnames_loongarch ();
+      break;
+
     default:
       break;
     }
diff --git a/gas/config/tc-loongarch.c b/gas/config/tc-loongarch.c
index 411c24b..85b13c3 100644
--- a/gas/config/tc-loongarch.c
+++ b/gas/config/tc-loongarch.c
@@ -276,6 +276,8 @@ static struct htab *c_htab = NULL;
 static struct htab *cr_htab = NULL;
 static struct htab *v_htab = NULL;
 static struct htab *x_htab = NULL;
+static struct htab *cfi_r_htab = NULL;
+static struct htab *cfi_f_htab = NULL;
 
 void
 loongarch_after_parse_args ()
@@ -322,15 +324,27 @@ loongarch_after_parse_args ()
   if (!r_deprecated_htab)
     r_deprecated_htab = str_htab_create (),
 			str_hash_insert (r_deprecated_htab, "", 0, 0);
+  /* Init cfi registers alias.  */
+  if (!cfi_r_htab)
+    cfi_r_htab = str_htab_create (), str_hash_insert (cfi_r_htab, "", 0, 0);
 
   r_abi_names = loongarch_r_normal_name;
   for (i = 0; i < ARRAY_SIZE (loongarch_r_normal_name); i++)
-    str_hash_insert (r_htab, loongarch_r_normal_name[i], (void *) (i + 1), 0);
-
+    {
+      str_hash_insert (r_htab, loongarch_r_normal_name[i],
+		       (void *) (i + 1), 0);
+      str_hash_insert (cfi_r_htab, loongarch_r_normal_name[i],
+		       (void *) (i + 1), 0);
+    }
   /* Init ilp32/lp64 registers alias.  */
   r_abi_names = loongarch_r_alias;
   for (i = 0; i < ARRAY_SIZE (loongarch_r_alias); i++)
-    str_hash_insert (r_htab, loongarch_r_alias[i], (void *) (i + 1), 0);
+    {
+      str_hash_insert (r_htab, loongarch_r_alias[i],
+		       (void *) (i + 1), 0);
+      str_hash_insert (cfi_r_htab, loongarch_r_alias[i],
+		       (void *) (i + 1), 0);
+    }
 
   for (i = 0; i < ARRAY_SIZE (loongarch_r_alias_1); i++)
     str_hash_insert (r_htab, loongarch_r_alias_1[i], (void *) (i + 1), 0);
@@ -339,6 +353,15 @@ loongarch_after_parse_args ()
     str_hash_insert (r_deprecated_htab, loongarch_r_alias_deprecated[i],
 	(void *) (i + 1), 0);
 
+  /* The .cfi directive supports register aliases without the "$" prefix.  */
+  for (i = 0; i < ARRAY_SIZE (loongarch_r_cfi_name); i++)
+    {
+      str_hash_insert (cfi_r_htab, loongarch_r_cfi_name[i],
+		       (void *)(i + 1), 0);
+      str_hash_insert (cfi_r_htab, loongarch_r_cfi_name_alias[i],
+		       (void *)(i + 1), 0);
+    }
+
   if (!cr_htab)
     cr_htab = str_htab_create (), str_hash_insert (cr_htab, "", 0, 0);
 
@@ -353,21 +376,39 @@ loongarch_after_parse_args ()
       if (!f_deprecated_htab)
 	f_deprecated_htab = str_htab_create (),
 			    str_hash_insert (f_deprecated_htab, "", 0, 0);
+      if (!cfi_f_htab)
+	cfi_f_htab = str_htab_create (), str_hash_insert (cfi_f_htab, "", 0, 0);
 
       f_abi_names = loongarch_f_normal_name;
       for (i = 0; i < ARRAY_SIZE (loongarch_f_normal_name); i++)
-	str_hash_insert (f_htab, loongarch_f_normal_name[i], (void *) (i + 1),
-			 0);
-
+	{
+	  str_hash_insert (f_htab, loongarch_f_normal_name[i],
+			   (void *) (i + 1), 0);
+	  str_hash_insert (cfi_f_htab, loongarch_f_normal_name[i],
+			   (void *) (i + 1), 0);
+	}
       /* Init float-ilp32/lp64 registers alias.  */
       f_abi_names = loongarch_f_alias;
       for (i = 0; i < ARRAY_SIZE (loongarch_f_alias); i++)
-	str_hash_insert (f_htab, loongarch_f_alias[i],
-	    (void *) (i + 1), 0);
+	{
+	  str_hash_insert (f_htab, loongarch_f_alias[i],
+			   (void *) (i + 1), 0);
+	  str_hash_insert (cfi_f_htab, loongarch_f_alias[i],
+			   (void *) (i + 1), 0);
+	}
       for (i = 0; i < ARRAY_SIZE (loongarch_f_alias_deprecated); i++)
 	str_hash_insert (f_deprecated_htab, loongarch_f_alias_deprecated[i],
 	    (void *) (i + 1), 0);
 
+  /* The .cfi directive supports register aliases without the "$" prefix.  */
+  for (i = 0; i < ARRAY_SIZE (loongarch_f_cfi_name); i++)
+    {
+      str_hash_insert (cfi_f_htab, loongarch_f_cfi_name[i],
+		       (void *)(i + 1), 0);
+      str_hash_insert (cfi_f_htab, loongarch_f_cfi_name_alias[i],
+		       (void *)(i + 1), 0);
+    }
+
       if (!fc_htab)
 	fc_htab = str_htab_create (), str_hash_insert (fc_htab, "", 0, 0);
 
@@ -1864,6 +1905,46 @@ loongarch_cfi_frame_initial_instructions (void)
   cfi_add_CFA_def_cfa_register (3 /* $sp */);
 }
 
+/* Convert REGNAME to a DWARF register number.  */
+int
+tc_loongarch_regname_to_dw2regnum (char *regname)
+{
+  int reg;
+
+  /* Look up in the general purpose register table.  */
+  if ((reg = (intptr_t) str_hash_find (cfi_r_htab, regname)) > 0)
+    return reg - 1;
+
+  /* Look up in the floating point register table.  */
+  if ((reg = (intptr_t) str_hash_find (cfi_f_htab, regname)) > 0)
+    return reg + 31;
+
+  as_bad (_("unknown register `%s`"), regname);
+  return -1;
+}
+
+/* Derived from tc_parse_to_dw2regnum, but excluding the case where
+   the prefix '%'.  */
+void
+tc_loongarch_parse_to_dw2regnum (expressionS *exp)
+{
+  SKIP_WHITESPACE ();
+  if (is_name_beginner (*input_line_pointer))
+    {
+      char *name, c;
+
+      c = get_symbol_name (& name);
+
+      exp->X_op = O_constant;
+      exp->X_add_number = tc_loongarch_regname_to_dw2regnum (name);
+
+      restore_line_pointer (c);
+    }
+  else
+    expression_and_evaluate (exp);
+}
+
+
 void
 loongarch_pre_output_hook (void)
 {
@@ -1910,12 +1991,6 @@ loongarch_pre_output_hook (void)
 }
 
 void
-tc_loongarch_parse_to_dw2regnum (expressionS *exp)
-{
-  expression_and_evaluate (exp);
-}
-
-void
 md_show_usage (FILE *stream)
 {
   fprintf (stream, _("LARCH options:\n"));
diff --git a/gas/config/tc-loongarch.h b/gas/config/tc-loongarch.h
index b815ebb..582edca 100644
--- a/gas/config/tc-loongarch.h
+++ b/gas/config/tc-loongarch.h
@@ -124,13 +124,15 @@ extern int loongarch_force_relocation (struct fix *);
   loongarch_cfi_frame_initial_instructions
 extern void loongarch_cfi_frame_initial_instructions (void);
 
+#define tc_parse_to_dw2regnum tc_loongarch_parse_to_dw2regnum
+extern void tc_loongarch_parse_to_dw2regnum (expressionS *);
+
+extern int tc_loongarch_regname_to_dw2regnum (char *);
+
 #define tc_symbol_new_hook(sym) \
   if (0 == strcmp (sym->bsym->name, FAKE_LABEL_NAME)) \
     S_SET_OTHER (sym, STV_HIDDEN);
 
-#define tc_parse_to_dw2regnum tc_loongarch_parse_to_dw2regnum
-extern void tc_loongarch_parse_to_dw2regnum (expressionS *);
-
 extern void loongarch_pre_output_hook (void);
 #define md_pre_output_hook loongarch_pre_output_hook ()
 #define GAS_SORT_RELOCS 1
diff --git a/gas/testsuite/gas/loongarch/dwarf-regnum.d b/gas/testsuite/gas/loongarch/dwarf-regnum.d
new file mode 100644
index 0000000..f7af728
--- /dev/null
+++ b/gas/testsuite/gas/loongarch/dwarf-regnum.d
@@ -0,0 +1,338 @@
+#objdump: --dwarf=frames
+
+.*:     file format .*
+
+Contents of the .*:
+
+
+00000000 [a-zA-Z0-9]+ [a-zA-Z0-9]+ CIE
+  Version:               .*
+  Augmentation:          .*
+  Code alignment factor: .*
+  Data alignment factor: .*
+  Return address column: .*
+  Augmentation data:     .*
+#...
+[a-zA-Z0-9]+ [a-zA-Z0-9]+ [a-zA-Z0-9]+ FDE cie=00000000 pc=[a-zA-Z0-9]+\.\.[a-zA-Z0-9]+
+  DW_CFA_advance_loc: 4 to 0000000000000020
+  DW_CFA_offset_extended_sf: r0 \(\$zero\) at cfa\+8
+  DW_CFA_offset_extended_sf: r1 \(\$ra\) at cfa\+16
+  DW_CFA_offset_extended_sf: r2 \(\$tp\) at cfa\+24
+  DW_CFA_offset_extended_sf: r3 \(\$sp\) at cfa\+32
+  DW_CFA_offset_extended_sf: r4 \(\$a0\) at cfa\+40
+  DW_CFA_offset_extended_sf: r5 \(\$a1\) at cfa\+48
+  DW_CFA_offset_extended_sf: r6 \(\$a2\) at cfa\+56
+  DW_CFA_offset_extended_sf: r7 \(\$a3\) at cfa\+64
+  DW_CFA_offset_extended_sf: r8 \(\$a4\) at cfa\+72
+  DW_CFA_offset_extended_sf: r9 \(\$a5\) at cfa\+80
+  DW_CFA_offset_extended_sf: r10 \(\$a6\) at cfa\+88
+  DW_CFA_offset_extended_sf: r11 \(\$a7\) at cfa\+96
+  DW_CFA_offset_extended_sf: r12 \(\$t0\) at cfa\+104
+  DW_CFA_offset_extended_sf: r13 \(\$t1\) at cfa\+112
+  DW_CFA_offset_extended_sf: r14 \(\$t2\) at cfa\+120
+  DW_CFA_offset_extended_sf: r15 \(\$t3\) at cfa\+128
+  DW_CFA_offset_extended_sf: r16 \(\$t4\) at cfa\+136
+  DW_CFA_offset_extended_sf: r17 \(\$t5\) at cfa\+144
+  DW_CFA_offset_extended_sf: r18 \(\$t6\) at cfa\+152
+  DW_CFA_offset_extended_sf: r19 \(\$t7\) at cfa\+160
+  DW_CFA_offset_extended_sf: r20 \(\$t8\) at cfa\+168
+  DW_CFA_offset_extended_sf: r21 \(\$r21\) at cfa\+176
+  DW_CFA_offset_extended_sf: r22 \(\$fp\) at cfa\+184
+  DW_CFA_offset_extended_sf: r23 \(\$s0\) at cfa\+192
+  DW_CFA_offset_extended_sf: r24 \(\$s1\) at cfa\+200
+  DW_CFA_offset_extended_sf: r25 \(\$s2\) at cfa\+208
+  DW_CFA_offset_extended_sf: r26 \(\$s3\) at cfa\+216
+  DW_CFA_offset_extended_sf: r27 \(\$s4\) at cfa\+224
+  DW_CFA_offset_extended_sf: r28 \(\$s5\) at cfa\+232
+  DW_CFA_offset_extended_sf: r29 \(\$s6\) at cfa\+240
+  DW_CFA_offset_extended_sf: r30 \(\$s7\) at cfa\+248
+  DW_CFA_offset_extended_sf: r31 \(\$s8\) at cfa\+256
+  DW_CFA_offset_extended_sf: r0 \(\$zero\) at cfa\+8
+  DW_CFA_offset_extended_sf: r1 \(\$ra\) at cfa\+16
+  DW_CFA_offset_extended_sf: r2 \(\$tp\) at cfa\+24
+  DW_CFA_offset_extended_sf: r3 \(\$sp\) at cfa\+32
+  DW_CFA_offset_extended_sf: r4 \(\$a0\) at cfa\+40
+  DW_CFA_offset_extended_sf: r5 \(\$a1\) at cfa\+48
+  DW_CFA_offset_extended_sf: r6 \(\$a2\) at cfa\+56
+  DW_CFA_offset_extended_sf: r7 \(\$a3\) at cfa\+64
+  DW_CFA_offset_extended_sf: r8 \(\$a4\) at cfa\+72
+  DW_CFA_offset_extended_sf: r9 \(\$a5\) at cfa\+80
+  DW_CFA_offset_extended_sf: r10 \(\$a6\) at cfa\+88
+  DW_CFA_offset_extended_sf: r11 \(\$a7\) at cfa\+96
+  DW_CFA_offset_extended_sf: r12 \(\$t0\) at cfa\+104
+  DW_CFA_offset_extended_sf: r13 \(\$t1\) at cfa\+112
+  DW_CFA_offset_extended_sf: r14 \(\$t2\) at cfa\+120
+  DW_CFA_offset_extended_sf: r15 \(\$t3\) at cfa\+128
+  DW_CFA_offset_extended_sf: r16 \(\$t4\) at cfa\+136
+  DW_CFA_offset_extended_sf: r17 \(\$t5\) at cfa\+144
+  DW_CFA_offset_extended_sf: r18 \(\$t6\) at cfa\+152
+  DW_CFA_offset_extended_sf: r19 \(\$t7\) at cfa\+160
+  DW_CFA_offset_extended_sf: r20 \(\$t8\) at cfa\+168
+  DW_CFA_offset_extended_sf: r21 \(\$r21\) at cfa\+176
+  DW_CFA_offset_extended_sf: r22 \(\$fp\) at cfa\+184
+  DW_CFA_offset_extended_sf: r23 \(\$s0\) at cfa\+192
+  DW_CFA_offset_extended_sf: r24 \(\$s1\) at cfa\+200
+  DW_CFA_offset_extended_sf: r25 \(\$s2\) at cfa\+208
+  DW_CFA_offset_extended_sf: r26 \(\$s3\) at cfa\+216
+  DW_CFA_offset_extended_sf: r27 \(\$s4\) at cfa\+224
+  DW_CFA_offset_extended_sf: r28 \(\$s5\) at cfa\+232
+  DW_CFA_offset_extended_sf: r29 \(\$s6\) at cfa\+240
+  DW_CFA_offset_extended_sf: r30 \(\$s7\) at cfa\+248
+  DW_CFA_offset_extended_sf: r31 \(\$s8\) at cfa\+256
+  DW_CFA_offset_extended_sf: r0 \(\$zero\) at cfa\+8
+  DW_CFA_offset_extended_sf: r1 \(\$ra\) at cfa\+16
+  DW_CFA_offset_extended_sf: r2 \(\$tp\) at cfa\+24
+  DW_CFA_offset_extended_sf: r3 \(\$sp\) at cfa\+32
+  DW_CFA_offset_extended_sf: r4 \(\$a0\) at cfa\+40
+  DW_CFA_offset_extended_sf: r5 \(\$a1\) at cfa\+48
+  DW_CFA_offset_extended_sf: r6 \(\$a2\) at cfa\+56
+  DW_CFA_offset_extended_sf: r7 \(\$a3\) at cfa\+64
+  DW_CFA_offset_extended_sf: r8 \(\$a4\) at cfa\+72
+  DW_CFA_offset_extended_sf: r9 \(\$a5\) at cfa\+80
+  DW_CFA_offset_extended_sf: r10 \(\$a6\) at cfa\+88
+  DW_CFA_offset_extended_sf: r11 \(\$a7\) at cfa\+96
+  DW_CFA_offset_extended_sf: r12 \(\$t0\) at cfa\+104
+  DW_CFA_offset_extended_sf: r13 \(\$t1\) at cfa\+112
+  DW_CFA_offset_extended_sf: r14 \(\$t2\) at cfa\+120
+  DW_CFA_offset_extended_sf: r15 \(\$t3\) at cfa\+128
+  DW_CFA_offset_extended_sf: r16 \(\$t4\) at cfa\+136
+  DW_CFA_offset_extended_sf: r17 \(\$t5\) at cfa\+144
+  DW_CFA_offset_extended_sf: r18 \(\$t6\) at cfa\+152
+  DW_CFA_offset_extended_sf: r19 \(\$t7\) at cfa\+160
+  DW_CFA_offset_extended_sf: r20 \(\$t8\) at cfa\+168
+  DW_CFA_offset_extended_sf: r21 \(\$r21\) at cfa\+176
+  DW_CFA_offset_extended_sf: r22 \(\$fp\) at cfa\+184
+  DW_CFA_offset_extended_sf: r23 \(\$s0\) at cfa\+192
+  DW_CFA_offset_extended_sf: r24 \(\$s1\) at cfa\+200
+  DW_CFA_offset_extended_sf: r25 \(\$s2\) at cfa\+208
+  DW_CFA_offset_extended_sf: r26 \(\$s3\) at cfa\+216
+  DW_CFA_offset_extended_sf: r27 \(\$s4\) at cfa\+224
+  DW_CFA_offset_extended_sf: r28 \(\$s5\) at cfa\+232
+  DW_CFA_offset_extended_sf: r29 \(\$s6\) at cfa\+240
+  DW_CFA_offset_extended_sf: r30 \(\$s7\) at cfa\+248
+  DW_CFA_offset_extended_sf: r31 \(\$s8\) at cfa\+256
+  DW_CFA_offset_extended_sf: r0 \(\$zero\) at cfa\+8
+  DW_CFA_offset_extended_sf: r1 \(\$ra\) at cfa\+16
+  DW_CFA_offset_extended_sf: r2 \(\$tp\) at cfa\+24
+  DW_CFA_offset_extended_sf: r3 \(\$sp\) at cfa\+32
+  DW_CFA_offset_extended_sf: r4 \(\$a0\) at cfa\+40
+  DW_CFA_offset_extended_sf: r5 \(\$a1\) at cfa\+48
+  DW_CFA_offset_extended_sf: r6 \(\$a2\) at cfa\+56
+  DW_CFA_offset_extended_sf: r7 \(\$a3\) at cfa\+64
+  DW_CFA_offset_extended_sf: r8 \(\$a4\) at cfa\+72
+  DW_CFA_offset_extended_sf: r9 \(\$a5\) at cfa\+80
+  DW_CFA_offset_extended_sf: r10 \(\$a6\) at cfa\+88
+  DW_CFA_offset_extended_sf: r11 \(\$a7\) at cfa\+96
+  DW_CFA_offset_extended_sf: r12 \(\$t0\) at cfa\+104
+  DW_CFA_offset_extended_sf: r13 \(\$t1\) at cfa\+112
+  DW_CFA_offset_extended_sf: r14 \(\$t2\) at cfa\+120
+  DW_CFA_offset_extended_sf: r15 \(\$t3\) at cfa\+128
+  DW_CFA_offset_extended_sf: r16 \(\$t4\) at cfa\+136
+  DW_CFA_offset_extended_sf: r17 \(\$t5\) at cfa\+144
+  DW_CFA_offset_extended_sf: r18 \(\$t6\) at cfa\+152
+  DW_CFA_offset_extended_sf: r19 \(\$t7\) at cfa\+160
+  DW_CFA_offset_extended_sf: r20 \(\$t8\) at cfa\+168
+  DW_CFA_offset_extended_sf: r21 \(\$r21\) at cfa\+176
+  DW_CFA_offset_extended_sf: r22 \(\$fp\) at cfa\+184
+  DW_CFA_offset_extended_sf: r23 \(\$s0\) at cfa\+192
+  DW_CFA_offset_extended_sf: r24 \(\$s1\) at cfa\+200
+  DW_CFA_offset_extended_sf: r25 \(\$s2\) at cfa\+208
+  DW_CFA_offset_extended_sf: r26 \(\$s3\) at cfa\+216
+  DW_CFA_offset_extended_sf: r27 \(\$s4\) at cfa\+224
+  DW_CFA_offset_extended_sf: r28 \(\$s5\) at cfa\+232
+  DW_CFA_offset_extended_sf: r29 \(\$s6\) at cfa\+240
+  DW_CFA_offset_extended_sf: r30 \(\$s7\) at cfa\+248
+  DW_CFA_offset_extended_sf: r31 \(\$s8\) at cfa\+256
+  DW_CFA_offset_extended_sf: r0 \(\$zero\) at cfa\+8
+  DW_CFA_offset_extended_sf: r1 \(\$ra\) at cfa\+16
+  DW_CFA_offset_extended_sf: r2 \(\$tp\) at cfa\+24
+  DW_CFA_offset_extended_sf: r3 \(\$sp\) at cfa\+32
+  DW_CFA_offset_extended_sf: r4 \(\$a0\) at cfa\+40
+  DW_CFA_offset_extended_sf: r5 \(\$a1\) at cfa\+48
+  DW_CFA_offset_extended_sf: r6 \(\$a2\) at cfa\+56
+  DW_CFA_offset_extended_sf: r7 \(\$a3\) at cfa\+64
+  DW_CFA_offset_extended_sf: r8 \(\$a4\) at cfa\+72
+  DW_CFA_offset_extended_sf: r9 \(\$a5\) at cfa\+80
+  DW_CFA_offset_extended_sf: r10 \(\$a6\) at cfa\+88
+  DW_CFA_offset_extended_sf: r11 \(\$a7\) at cfa\+96
+  DW_CFA_offset_extended_sf: r12 \(\$t0\) at cfa\+104
+  DW_CFA_offset_extended_sf: r13 \(\$t1\) at cfa\+112
+  DW_CFA_offset_extended_sf: r14 \(\$t2\) at cfa\+120
+  DW_CFA_offset_extended_sf: r15 \(\$t3\) at cfa\+128
+  DW_CFA_offset_extended_sf: r16 \(\$t4\) at cfa\+136
+  DW_CFA_offset_extended_sf: r17 \(\$t5\) at cfa\+144
+  DW_CFA_offset_extended_sf: r18 \(\$t6\) at cfa\+152
+  DW_CFA_offset_extended_sf: r19 \(\$t7\) at cfa\+160
+  DW_CFA_offset_extended_sf: r20 \(\$t8\) at cfa\+168
+  DW_CFA_offset_extended_sf: r21 \(\$r21\) at cfa\+176
+  DW_CFA_offset_extended_sf: r22 \(\$fp\) at cfa\+184
+  DW_CFA_offset_extended_sf: r23 \(\$s0\) at cfa\+192
+  DW_CFA_offset_extended_sf: r24 \(\$s1\) at cfa\+200
+  DW_CFA_offset_extended_sf: r25 \(\$s2\) at cfa\+208
+  DW_CFA_offset_extended_sf: r26 \(\$s3\) at cfa\+216
+  DW_CFA_offset_extended_sf: r27 \(\$s4\) at cfa\+224
+  DW_CFA_offset_extended_sf: r28 \(\$s5\) at cfa\+232
+  DW_CFA_offset_extended_sf: r29 \(\$s6\) at cfa\+240
+  DW_CFA_offset_extended_sf: r30 \(\$s7\) at cfa\+248
+  DW_CFA_offset_extended_sf: r31 \(\$s8\) at cfa\+256
+  DW_CFA_offset_extended_sf: r32 \(\$fa0\) at cfa\+264
+  DW_CFA_offset_extended_sf: r33 \(\$fa1\) at cfa\+272
+  DW_CFA_offset_extended_sf: r34 \(\$fa2\) at cfa\+280
+  DW_CFA_offset_extended_sf: r35 \(\$fa3\) at cfa\+288
+  DW_CFA_offset_extended_sf: r36 \(\$fa4\) at cfa\+296
+  DW_CFA_offset_extended_sf: r37 \(\$fa5\) at cfa\+304
+  DW_CFA_offset_extended_sf: r38 \(\$fa6\) at cfa\+312
+  DW_CFA_offset_extended_sf: r39 \(\$fa7\) at cfa\+320
+  DW_CFA_offset_extended_sf: r40 \(\$ft0\) at cfa\+328
+  DW_CFA_offset_extended_sf: r41 \(\$ft1\) at cfa\+336
+  DW_CFA_offset_extended_sf: r42 \(\$ft2\) at cfa\+344
+  DW_CFA_offset_extended_sf: r43 \(\$ft3\) at cfa\+352
+  DW_CFA_offset_extended_sf: r44 \(\$ft4\) at cfa\+360
+  DW_CFA_offset_extended_sf: r45 \(\$ft5\) at cfa\+368
+  DW_CFA_offset_extended_sf: r46 \(\$ft6\) at cfa\+376
+  DW_CFA_offset_extended_sf: r47 \(\$ft7\) at cfa\+384
+  DW_CFA_offset_extended_sf: r48 \(\$ft8\) at cfa\+392
+  DW_CFA_offset_extended_sf: r49 \(\$ft9\) at cfa\+400
+  DW_CFA_offset_extended_sf: r50 \(\$ft10\) at cfa\+408
+  DW_CFA_offset_extended_sf: r51 \(\$ft11\) at cfa\+416
+  DW_CFA_offset_extended_sf: r52 \(\$ft12\) at cfa\+424
+  DW_CFA_offset_extended_sf: r53 \(\$ft13\) at cfa\+432
+  DW_CFA_offset_extended_sf: r54 \(\$ft14\) at cfa\+440
+  DW_CFA_offset_extended_sf: r55 \(\$ft15\) at cfa\+448
+  DW_CFA_offset_extended_sf: r56 \(\$fs0\) at cfa\+456
+  DW_CFA_offset_extended_sf: r57 \(\$fs1\) at cfa\+464
+  DW_CFA_offset_extended_sf: r58 \(\$fs2\) at cfa\+472
+  DW_CFA_offset_extended_sf: r59 \(\$fs3\) at cfa\+480
+  DW_CFA_offset_extended_sf: r60 \(\$fs4\) at cfa\+488
+  DW_CFA_offset_extended_sf: r61 \(\$fs5\) at cfa\+496
+  DW_CFA_offset_extended_sf: r62 \(\$fs6\) at cfa\+504
+  DW_CFA_offset_extended_sf: r63 \(\$fs7\) at cfa\+512
+  DW_CFA_offset_extended_sf: r32 \(\$fa0\) at cfa\+264
+  DW_CFA_offset_extended_sf: r33 \(\$fa1\) at cfa\+272
+  DW_CFA_offset_extended_sf: r34 \(\$fa2\) at cfa\+280
+  DW_CFA_offset_extended_sf: r35 \(\$fa3\) at cfa\+288
+  DW_CFA_offset_extended_sf: r36 \(\$fa4\) at cfa\+296
+  DW_CFA_offset_extended_sf: r37 \(\$fa5\) at cfa\+304
+  DW_CFA_offset_extended_sf: r38 \(\$fa6\) at cfa\+312
+  DW_CFA_offset_extended_sf: r39 \(\$fa7\) at cfa\+320
+  DW_CFA_offset_extended_sf: r40 \(\$ft0\) at cfa\+328
+  DW_CFA_offset_extended_sf: r41 \(\$ft1\) at cfa\+336
+  DW_CFA_offset_extended_sf: r42 \(\$ft2\) at cfa\+344
+  DW_CFA_offset_extended_sf: r43 \(\$ft3\) at cfa\+352
+  DW_CFA_offset_extended_sf: r44 \(\$ft4\) at cfa\+360
+  DW_CFA_offset_extended_sf: r45 \(\$ft5\) at cfa\+368
+  DW_CFA_offset_extended_sf: r46 \(\$ft6\) at cfa\+376
+  DW_CFA_offset_extended_sf: r47 \(\$ft7\) at cfa\+384
+  DW_CFA_offset_extended_sf: r48 \(\$ft8\) at cfa\+392
+  DW_CFA_offset_extended_sf: r49 \(\$ft9\) at cfa\+400
+  DW_CFA_offset_extended_sf: r50 \(\$ft10\) at cfa\+408
+  DW_CFA_offset_extended_sf: r51 \(\$ft11\) at cfa\+416
+  DW_CFA_offset_extended_sf: r52 \(\$ft12\) at cfa\+424
+  DW_CFA_offset_extended_sf: r53 \(\$ft13\) at cfa\+432
+  DW_CFA_offset_extended_sf: r54 \(\$ft14\) at cfa\+440
+  DW_CFA_offset_extended_sf: r55 \(\$ft15\) at cfa\+448
+  DW_CFA_offset_extended_sf: r56 \(\$fs0\) at cfa\+456
+  DW_CFA_offset_extended_sf: r57 \(\$fs1\) at cfa\+464
+  DW_CFA_offset_extended_sf: r58 \(\$fs2\) at cfa\+472
+  DW_CFA_offset_extended_sf: r59 \(\$fs3\) at cfa\+480
+  DW_CFA_offset_extended_sf: r60 \(\$fs4\) at cfa\+488
+  DW_CFA_offset_extended_sf: r61 \(\$fs5\) at cfa\+496
+  DW_CFA_offset_extended_sf: r62 \(\$fs6\) at cfa\+504
+  DW_CFA_offset_extended_sf: r63 \(\$fs7\) at cfa\+512
+  DW_CFA_offset_extended_sf: r32 \(\$fa0\) at cfa\+264
+  DW_CFA_offset_extended_sf: r33 \(\$fa1\) at cfa\+272
+  DW_CFA_offset_extended_sf: r34 \(\$fa2\) at cfa\+280
+  DW_CFA_offset_extended_sf: r35 \(\$fa3\) at cfa\+288
+  DW_CFA_offset_extended_sf: r36 \(\$fa4\) at cfa\+296
+  DW_CFA_offset_extended_sf: r37 \(\$fa5\) at cfa\+304
+  DW_CFA_offset_extended_sf: r38 \(\$fa6\) at cfa\+312
+  DW_CFA_offset_extended_sf: r39 \(\$fa7\) at cfa\+320
+  DW_CFA_offset_extended_sf: r40 \(\$ft0\) at cfa\+328
+  DW_CFA_offset_extended_sf: r41 \(\$ft1\) at cfa\+336
+  DW_CFA_offset_extended_sf: r42 \(\$ft2\) at cfa\+344
+  DW_CFA_offset_extended_sf: r43 \(\$ft3\) at cfa\+352
+  DW_CFA_offset_extended_sf: r44 \(\$ft4\) at cfa\+360
+  DW_CFA_offset_extended_sf: r45 \(\$ft5\) at cfa\+368
+  DW_CFA_offset_extended_sf: r46 \(\$ft6\) at cfa\+376
+  DW_CFA_offset_extended_sf: r47 \(\$ft7\) at cfa\+384
+  DW_CFA_offset_extended_sf: r48 \(\$ft8\) at cfa\+392
+  DW_CFA_offset_extended_sf: r49 \(\$ft9\) at cfa\+400
+  DW_CFA_offset_extended_sf: r50 \(\$ft10\) at cfa\+408
+  DW_CFA_offset_extended_sf: r51 \(\$ft11\) at cfa\+416
+  DW_CFA_offset_extended_sf: r52 \(\$ft12\) at cfa\+424
+  DW_CFA_offset_extended_sf: r53 \(\$ft13\) at cfa\+432
+  DW_CFA_offset_extended_sf: r54 \(\$ft14\) at cfa\+440
+  DW_CFA_offset_extended_sf: r55 \(\$ft15\) at cfa\+448
+  DW_CFA_offset_extended_sf: r56 \(\$fs0\) at cfa\+456
+  DW_CFA_offset_extended_sf: r57 \(\$fs1\) at cfa\+464
+  DW_CFA_offset_extended_sf: r58 \(\$fs2\) at cfa\+472
+  DW_CFA_offset_extended_sf: r59 \(\$fs3\) at cfa\+480
+  DW_CFA_offset_extended_sf: r60 \(\$fs4\) at cfa\+488
+  DW_CFA_offset_extended_sf: r61 \(\$fs5\) at cfa\+496
+  DW_CFA_offset_extended_sf: r62 \(\$fs6\) at cfa\+504
+  DW_CFA_offset_extended_sf: r63 \(\$fs7\) at cfa\+512
+  DW_CFA_offset_extended_sf: r32 \(\$fa0\) at cfa\+264
+  DW_CFA_offset_extended_sf: r33 \(\$fa1\) at cfa\+272
+  DW_CFA_offset_extended_sf: r34 \(\$fa2\) at cfa\+280
+  DW_CFA_offset_extended_sf: r35 \(\$fa3\) at cfa\+288
+  DW_CFA_offset_extended_sf: r36 \(\$fa4\) at cfa\+296
+  DW_CFA_offset_extended_sf: r37 \(\$fa5\) at cfa\+304
+  DW_CFA_offset_extended_sf: r38 \(\$fa6\) at cfa\+312
+  DW_CFA_offset_extended_sf: r39 \(\$fa7\) at cfa\+320
+  DW_CFA_offset_extended_sf: r40 \(\$ft0\) at cfa\+328
+  DW_CFA_offset_extended_sf: r41 \(\$ft1\) at cfa\+336
+  DW_CFA_offset_extended_sf: r42 \(\$ft2\) at cfa\+344
+  DW_CFA_offset_extended_sf: r43 \(\$ft3\) at cfa\+352
+  DW_CFA_offset_extended_sf: r44 \(\$ft4\) at cfa\+360
+  DW_CFA_offset_extended_sf: r45 \(\$ft5\) at cfa\+368
+  DW_CFA_offset_extended_sf: r46 \(\$ft6\) at cfa\+376
+  DW_CFA_offset_extended_sf: r47 \(\$ft7\) at cfa\+384
+  DW_CFA_offset_extended_sf: r48 \(\$ft8\) at cfa\+392
+  DW_CFA_offset_extended_sf: r49 \(\$ft9\) at cfa\+400
+  DW_CFA_offset_extended_sf: r50 \(\$ft10\) at cfa\+408
+  DW_CFA_offset_extended_sf: r51 \(\$ft11\) at cfa\+416
+  DW_CFA_offset_extended_sf: r52 \(\$ft12\) at cfa\+424
+  DW_CFA_offset_extended_sf: r53 \(\$ft13\) at cfa\+432
+  DW_CFA_offset_extended_sf: r54 \(\$ft14\) at cfa\+440
+  DW_CFA_offset_extended_sf: r55 \(\$ft15\) at cfa\+448
+  DW_CFA_offset_extended_sf: r56 \(\$fs0\) at cfa\+456
+  DW_CFA_offset_extended_sf: r57 \(\$fs1\) at cfa\+464
+  DW_CFA_offset_extended_sf: r58 \(\$fs2\) at cfa\+472
+  DW_CFA_offset_extended_sf: r59 \(\$fs3\) at cfa\+480
+  DW_CFA_offset_extended_sf: r60 \(\$fs4\) at cfa\+488
+  DW_CFA_offset_extended_sf: r61 \(\$fs5\) at cfa\+496
+  DW_CFA_offset_extended_sf: r62 \(\$fs6\) at cfa\+504
+  DW_CFA_offset_extended_sf: r63 \(\$fs7\) at cfa\+512
+  DW_CFA_offset_extended_sf: r32 \(\$fa0\) at cfa\+264
+  DW_CFA_offset_extended_sf: r33 \(\$fa1\) at cfa\+272
+  DW_CFA_offset_extended_sf: r34 \(\$fa2\) at cfa\+280
+  DW_CFA_offset_extended_sf: r35 \(\$fa3\) at cfa\+288
+  DW_CFA_offset_extended_sf: r36 \(\$fa4\) at cfa\+296
+  DW_CFA_offset_extended_sf: r37 \(\$fa5\) at cfa\+304
+  DW_CFA_offset_extended_sf: r38 \(\$fa6\) at cfa\+312
+  DW_CFA_offset_extended_sf: r39 \(\$fa7\) at cfa\+320
+  DW_CFA_offset_extended_sf: r40 \(\$ft0\) at cfa\+328
+  DW_CFA_offset_extended_sf: r41 \(\$ft1\) at cfa\+336
+  DW_CFA_offset_extended_sf: r42 \(\$ft2\) at cfa\+344
+  DW_CFA_offset_extended_sf: r43 \(\$ft3\) at cfa\+352
+  DW_CFA_offset_extended_sf: r44 \(\$ft4\) at cfa\+360
+  DW_CFA_offset_extended_sf: r45 \(\$ft5\) at cfa\+368
+  DW_CFA_offset_extended_sf: r46 \(\$ft6\) at cfa\+376
+  DW_CFA_offset_extended_sf: r47 \(\$ft7\) at cfa\+384
+  DW_CFA_offset_extended_sf: r48 \(\$ft8\) at cfa\+392
+  DW_CFA_offset_extended_sf: r49 \(\$ft9\) at cfa\+400
+  DW_CFA_offset_extended_sf: r50 \(\$ft10\) at cfa\+408
+  DW_CFA_offset_extended_sf: r51 \(\$ft11\) at cfa\+416
+  DW_CFA_offset_extended_sf: r52 \(\$ft12\) at cfa\+424
+  DW_CFA_offset_extended_sf: r53 \(\$ft13\) at cfa\+432
+  DW_CFA_offset_extended_sf: r54 \(\$ft14\) at cfa\+440
+  DW_CFA_offset_extended_sf: r55 \(\$ft15\) at cfa\+448
+  DW_CFA_offset_extended_sf: r56 \(\$fs0\) at cfa\+456
+  DW_CFA_offset_extended_sf: r57 \(\$fs1\) at cfa\+464
+  DW_CFA_offset_extended_sf: r58 \(\$fs2\) at cfa\+472
+  DW_CFA_offset_extended_sf: r59 \(\$fs3\) at cfa\+480
+  DW_CFA_offset_extended_sf: r60 \(\$fs4\) at cfa\+488
+  DW_CFA_offset_extended_sf: r61 \(\$fs5\) at cfa\+496
+  DW_CFA_offset_extended_sf: r62 \(\$fs6\) at cfa\+504
+  DW_CFA_offset_extended_sf: r63 \(\$fs7\) at cfa\+512
+#...
diff --git a/gas/testsuite/gas/loongarch/dwarf-regnum.s b/gas/testsuite/gas/loongarch/dwarf-regnum.s
new file mode 100644
index 0000000..a94a1a1
--- /dev/null
+++ b/gas/testsuite/gas/loongarch/dwarf-regnum.s
@@ -0,0 +1,348 @@
+# Check whether CFI directives can access all register names.
+	.text
+	.globl _start
+_start:
+	.cfi_startproc
+	nop
+	# dwarf 0-31
+	.cfi_offset 0, 8
+	.cfi_offset 1, 16
+	.cfi_offset 2, 24
+	.cfi_offset 3, 32
+	.cfi_offset 4, 40
+	.cfi_offset 5, 48
+	.cfi_offset 6, 56
+	.cfi_offset 7, 64
+	.cfi_offset 8, 72
+	.cfi_offset 9, 80
+	.cfi_offset 10,88
+	.cfi_offset 11,96
+	.cfi_offset 12,104
+	.cfi_offset 13,112
+	.cfi_offset 14,120
+	.cfi_offset 15,128
+	.cfi_offset 16,136
+	.cfi_offset 17,144
+	.cfi_offset 18,152
+	.cfi_offset 19,160
+	.cfi_offset 20,168
+	.cfi_offset 21,176
+	.cfi_offset 22,184
+	.cfi_offset 23,192
+	.cfi_offset 24,200
+	.cfi_offset 25,208
+	.cfi_offset 26,216
+	.cfi_offset 27,224
+	.cfi_offset 28,232
+	.cfi_offset 29,240
+	.cfi_offset 30,248
+	.cfi_offset 31,256
+
+	# ABI GPRs name
+	.cfi_offset $r0, 8
+	.cfi_offset $r1, 16
+	.cfi_offset $r2, 24
+	.cfi_offset $r3, 32
+	.cfi_offset $r4, 40
+	.cfi_offset $r5, 48
+	.cfi_offset $r6, 56
+	.cfi_offset $r7, 64
+	.cfi_offset $r8, 72
+	.cfi_offset $r9, 80
+	.cfi_offset $r10,88
+	.cfi_offset $r11,96
+	.cfi_offset $r12,104
+	.cfi_offset $r13,112
+	.cfi_offset $r14,120
+	.cfi_offset $r15,128
+	.cfi_offset $r16,136
+	.cfi_offset $r17,144
+	.cfi_offset $r18,152
+	.cfi_offset $r19,160
+	.cfi_offset $r20,168
+	.cfi_offset $r21,176
+	.cfi_offset $r22,184
+	.cfi_offset $r23,192
+	.cfi_offset $r24,200
+	.cfi_offset $r25,208
+	.cfi_offset $r26,216
+	.cfi_offset $r27,224
+	.cfi_offset $r28,232
+	.cfi_offset $r29,240
+	.cfi_offset $r30,248
+	.cfi_offset $r31,256
+
+	# ABI GPRs alias
+	.cfi_offset $zero,8
+	.cfi_offset $ra,  16
+	.cfi_offset $tp,  24
+	.cfi_offset $sp,  32
+	.cfi_offset $a0,  40
+	.cfi_offset $a1,  48
+	.cfi_offset $a2,  56
+	.cfi_offset $a3,  64
+	.cfi_offset $a4,  72
+	.cfi_offset $a5,  80
+	.cfi_offset $a6,  88
+	.cfi_offset $a7,  96
+	.cfi_offset $t0,  104
+	.cfi_offset $t1,  112
+	.cfi_offset $t2,  120
+	.cfi_offset $t3,  128
+	.cfi_offset $t4,  136
+	.cfi_offset $t5,  144
+	.cfi_offset $t6,  152
+	.cfi_offset $t7,  160
+	.cfi_offset $t8,  168
+	.cfi_offset $r21, 176
+	.cfi_offset $fp,  184
+	.cfi_offset $s0,  192
+	.cfi_offset $s1,  200
+	.cfi_offset $s2,  208
+	.cfi_offset $s3,  216
+	.cfi_offset $s4,  224
+	.cfi_offset $s5,  232
+	.cfi_offset $s6,  240
+	.cfi_offset $s7,  248
+	.cfi_offset $s8,  256
+
+	# numeric GPRs alias
+	.cfi_offset r0, 8
+	.cfi_offset r1, 16
+	.cfi_offset r2, 24
+	.cfi_offset r3, 32
+	.cfi_offset r4, 40
+	.cfi_offset r5, 48
+	.cfi_offset r6, 56
+	.cfi_offset r7, 64
+	.cfi_offset r8, 72
+	.cfi_offset r9, 80
+	.cfi_offset r10,88
+	.cfi_offset r11,96
+	.cfi_offset r12,104
+	.cfi_offset r13,112
+	.cfi_offset r14,120
+	.cfi_offset r15,128
+	.cfi_offset r16,136
+	.cfi_offset r17,144
+	.cfi_offset r18,152
+	.cfi_offset r19,160
+	.cfi_offset r20,168
+	.cfi_offset r21,176
+	.cfi_offset r22,184
+	.cfi_offset r23,192
+	.cfi_offset r24,200
+	.cfi_offset r25,208
+	.cfi_offset r26,216
+	.cfi_offset r27,224
+	.cfi_offset r28,232
+	.cfi_offset r29,240
+	.cfi_offset r30,248
+	.cfi_offset r31,256
+
+	# without "$" GPRs alias
+	.cfi_offset zero,8
+	.cfi_offset ra,  16
+	.cfi_offset tp,  24
+	.cfi_offset sp,  32
+	.cfi_offset a0,  40
+	.cfi_offset a1,  48
+	.cfi_offset a2,  56
+	.cfi_offset a3,  64
+	.cfi_offset a4,  72
+	.cfi_offset a5,  80
+	.cfi_offset a6,  88
+	.cfi_offset a7,  96
+	.cfi_offset t0,  104
+	.cfi_offset t1,  112
+	.cfi_offset t2,  120
+	.cfi_offset t3,  128
+	.cfi_offset t4,  136
+	.cfi_offset t5,  144
+	.cfi_offset t6,  152
+	.cfi_offset t7,  160
+	.cfi_offset t8,  168
+	.cfi_offset r21, 176
+	.cfi_offset fp,  184
+	.cfi_offset s0,  192
+	.cfi_offset s1,  200
+	.cfi_offset s2,  208
+	.cfi_offset s3,  216
+	.cfi_offset s4,  224
+	.cfi_offset s5,  232
+	.cfi_offset s6,  240
+	.cfi_offset s7,  248
+	.cfi_offset s8,  256
+
+	# dwarf 32-63
+	.cfi_offset 32,264
+	.cfi_offset 33,272
+	.cfi_offset 34,280
+	.cfi_offset 35,288
+	.cfi_offset 36,296
+	.cfi_offset 37,304
+	.cfi_offset 38,312
+	.cfi_offset 39,320
+	.cfi_offset 40,328
+	.cfi_offset 41,336
+	.cfi_offset 42,344
+	.cfi_offset 43,352
+	.cfi_offset 44,360
+	.cfi_offset 45,368
+	.cfi_offset 46,376
+	.cfi_offset 47,384
+	.cfi_offset 48,392
+	.cfi_offset 49,400
+	.cfi_offset 50,408
+	.cfi_offset 51,416
+	.cfi_offset 52,424
+	.cfi_offset 53,432
+	.cfi_offset 54,440
+	.cfi_offset 55,448
+	.cfi_offset 56,456
+	.cfi_offset 57,464
+	.cfi_offset 58,472
+	.cfi_offset 59,480
+	.cfi_offset 60,488
+	.cfi_offset 61,496
+	.cfi_offset 62,504
+	.cfi_offset 63,512
+
+	# ABI FPRs names
+	.cfi_offset $f0, 264
+	.cfi_offset $f1, 272
+	.cfi_offset $f2, 280
+	.cfi_offset $f3, 288
+	.cfi_offset $f4, 296
+	.cfi_offset $f5, 304
+	.cfi_offset $f6, 312
+	.cfi_offset $f7, 320
+	.cfi_offset $f8, 328
+	.cfi_offset $f9, 336
+	.cfi_offset $f10,344
+	.cfi_offset $f11,352
+	.cfi_offset $f12,360
+	.cfi_offset $f13,368
+	.cfi_offset $f14,376
+	.cfi_offset $f15,384
+	.cfi_offset $f16,392
+	.cfi_offset $f17,400
+	.cfi_offset $f18,408
+	.cfi_offset $f19,416
+	.cfi_offset $f20,424
+	.cfi_offset $f21,432
+	.cfi_offset $f22,440
+	.cfi_offset $f23,448
+	.cfi_offset $f24,456
+	.cfi_offset $f25,464
+	.cfi_offset $f26,472
+	.cfi_offset $f27,480
+	.cfi_offset $f28,488
+	.cfi_offset $f29,496
+	.cfi_offset $f30,504
+	.cfi_offset $f31,512
+
+	# ABI FPRs alias
+	.cfi_offset $fa0, 264
+	.cfi_offset $fa1, 272
+	.cfi_offset $fa2, 280
+	.cfi_offset $fa3, 288
+	.cfi_offset $fa4, 296
+	.cfi_offset $fa5, 304
+	.cfi_offset $fa6, 312
+	.cfi_offset $fa7, 320
+	.cfi_offset $ft0, 328
+	.cfi_offset $ft1, 336
+	.cfi_offset $ft2,344
+	.cfi_offset $ft3,352
+	.cfi_offset $ft4,360
+	.cfi_offset $ft5,368
+	.cfi_offset $ft6,376
+	.cfi_offset $ft7,384
+	.cfi_offset $ft8,392
+	.cfi_offset $ft9,400
+	.cfi_offset $ft10,408
+	.cfi_offset $ft11,416
+	.cfi_offset $ft12,424
+	.cfi_offset $ft13,432
+	.cfi_offset $ft14,440
+	.cfi_offset $ft15,448
+	.cfi_offset $fs0,456
+	.cfi_offset $fs1,464
+	.cfi_offset $fs2,472
+	.cfi_offset $fs3,480
+	.cfi_offset $fs4,488
+	.cfi_offset $fs5,496
+	.cfi_offset $fs6,504
+	.cfi_offset $fs7,512
+
+	# numeric FPRs names
+	.cfi_offset f0, 264
+	.cfi_offset f1, 272
+	.cfi_offset f2, 280
+	.cfi_offset f3, 288
+	.cfi_offset f4, 296
+	.cfi_offset f5, 304
+	.cfi_offset f6, 312
+	.cfi_offset f7, 320
+	.cfi_offset f8, 328
+	.cfi_offset f9, 336
+	.cfi_offset f10,344
+	.cfi_offset f11,352
+	.cfi_offset f12,360
+	.cfi_offset f13,368
+	.cfi_offset f14,376
+	.cfi_offset f15,384
+	.cfi_offset f16,392
+	.cfi_offset f17,400
+	.cfi_offset f18,408
+	.cfi_offset f19,416
+	.cfi_offset f20,424
+	.cfi_offset f21,432
+	.cfi_offset f22,440
+	.cfi_offset f23,448
+	.cfi_offset f24,456
+	.cfi_offset f25,464
+	.cfi_offset f26,472
+	.cfi_offset f27,480
+	.cfi_offset f28,488
+	.cfi_offset f29,496
+	.cfi_offset f30,504
+	.cfi_offset f31,512
+
+	# without "$" FPRs alias
+	.cfi_offset fa0, 264
+	.cfi_offset fa1, 272
+	.cfi_offset fa2, 280
+	.cfi_offset fa3, 288
+	.cfi_offset fa4, 296
+	.cfi_offset fa5, 304
+	.cfi_offset fa6, 312
+	.cfi_offset fa7, 320
+	.cfi_offset ft0, 328
+	.cfi_offset ft1, 336
+	.cfi_offset ft2,344
+	.cfi_offset ft3,352
+	.cfi_offset ft4,360
+	.cfi_offset ft5,368
+	.cfi_offset ft6,376
+	.cfi_offset ft7,384
+	.cfi_offset ft8,392
+	.cfi_offset ft9,400
+	.cfi_offset ft10,408
+	.cfi_offset ft11,416
+	.cfi_offset ft12,424
+	.cfi_offset ft13,432
+	.cfi_offset ft14,440
+	.cfi_offset ft15,448
+	.cfi_offset fs0,456
+	.cfi_offset fs1,464
+	.cfi_offset fs2,472
+	.cfi_offset fs3,480
+	.cfi_offset fs4,488
+	.cfi_offset fs5,496
+	.cfi_offset fs6,504
+	.cfi_offset fs7,512
+
+	nop
+	.cfi_endproc
diff --git a/include/opcode/loongarch.h b/include/opcode/loongarch.h
index 5425eaf..493fe9b 100644
--- a/include/opcode/loongarch.h
+++ b/include/opcode/loongarch.h
@@ -267,6 +267,10 @@ dec2 : [1-9][0-9]?
   extern const char *const loongarch_cr_normal_name[4];
   extern const char *const loongarch_v_normal_name[32];
   extern const char *const loongarch_x_normal_name[32];
+  extern const char *const loongarch_r_cfi_name[32];
+  extern const char *const loongarch_r_cfi_name_alias[32];
+  extern const char *const loongarch_f_cfi_name[32];
+  extern const char *const loongarch_f_cfi_name_alias[32];
 
   extern struct loongarch_ase loongarch_ASEs[];
 
diff --git a/opcodes/loongarch-opc.c b/opcodes/loongarch-opc.c
index 0ba745f..6c2b476 100644
--- a/opcodes/loongarch-opc.c
+++ b/opcodes/loongarch-opc.c
@@ -126,6 +126,38 @@ const char *const loongarch_x_normal_name[32] =
   "$xr24", "$xr25", "$xr26", "$xr27", "$xr28", "$xr29", "$xr30", "$xr31",
 };
 
+const char *const loongarch_r_cfi_name[32] =
+{
+  "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",  "r7",
+  "r8",  "r9",  "r10", "r11", "r12", "r13", "r14", "r15",
+  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
+};
+
+const char *const loongarch_r_cfi_name_alias[32] =
+{
+  "zero", "ra", "tp", "sp", "a0", "a1", "a2", "a3",
+  "a4",   "a5", "a6", "a7", "t0", "t1", "t2", "t3",
+  "t4",   "t5", "t6", "t7", "t8", "r21","fp", "s0",
+  "s1",   "s2", "s3", "s4", "s5", "s6", "s7", "s8",
+};
+
+const char *const loongarch_f_cfi_name[32] =
+{
+  "f0",  "f1",  "f2",  "f3",  "f4",  "f5",  "f6",  "f7",
+  "f8",  "f9",  "f10", "f11", "f12", "f13", "f14", "f15",
+  "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
+  "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
+};
+
+const char *const loongarch_f_cfi_name_alias[32] =
+{
+  "fa0", "fa1", "fa2",  "fa3",  "fa4",  "fa5",  "fa6",  "fa7",
+  "ft0", "ft1", "ft2",  "ft3",  "ft4",  "ft5",  "ft6",  "ft7",
+  "ft8", "ft9", "ft10", "ft11", "ft12", "ft13", "ft14", "ft15",
+  "fs0", "fs1", "fs2",  "fs3",  "fs4",  "fs5",  "fs6",  "fs7",
+};
+
 /* Can not use xx_pa for abs.  */
 
 /* For LoongArch32 abs.  */