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/* Copyright 2025 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
volatile void dummy () {}
long test_function(void)
{
__asm__ volatile (
/* Zero d0 (64-bit vector register part of v0). */
"movi d0, #0\n\t"
/* Move the frame pointer (x29) to d0 using fmov. */
"fmov d0, x29\n\t"
/* Describe CFI: Frame pointer is now in d0. */
".cfi_register x29, d0\n\t"
/* Clobber list: Specify all modified registers. */
: /* No output operands. */
: /* No input operands. */
: "d0"
);
dummy (); /* break-here */
__asm__ volatile (
/* Restore the frame pointer (x29) from d0 using fmov. */
"fmov x29, d0\n\t"
/* Describe CFI: Frame pointer is restored. */
".cfi_restore x29\n\t"
/* Clobber list: Specify all modified registers. */
: /* No output operands. */
: /* No input operands. */
: "x29", "d0"
);
return 0;
}
int
main ()
{
long result = test_function ();
dummy ();
return 0;
}
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