1/* Copyright 2022-2023 Free Software Foundation, Inc.
2
3   This file is part of GDB.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18        .text
19        .globl main
20        .type main,#function
21main:
22        .cfi_startproc
23        stp     x29, x30, [sp, -16]!
24        .cfi_def_cfa sp, 16
25        .cfi_offset x29, 0
26        .cfi_offset x30, 8
27        bl test_func
28        ldp     x29, x30, [sp], 16
29        .cfi_restore x29
30        .cfi_restore x30
31        .cfi_def_cfa sp, 0
32        mov     x0, 0
33        ret
34        .cfi_endproc
35
36        .globl test_func
37test_func:
38        .cfi_startproc
39        // Unwind x30 to a different value
40        // CFA_val_expression x30 const2u 0x1234
41        .cfi_escape 0x16, 30, 0x03, 0x0a, 0x34, 0x12
42        // CFA_val_expression pc breg30 0
43        .cfi_escape 0x16, 32, 0x02, 0x8e, 0x00
44        mov     x0, x30
45        .cfi_register 32, x0
46        mov     x30, 0x1234
47        ret     x0
48        .cfi_endproc
49	.section	.note.GNU-stack,"",@progbits
50