gdb/testsuite/gdb.opt/clobbered-registers-O2.c

/* This file is part of GDB, the GNU debugger.

   Copyright 2007-2021 Free Software Foundation, Inc.

   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/>.  */

#ifndef __GNUC__
#define __attribute__(x)
#endif

unsigned * __attribute__((noinline))
start_sequence (unsigned * x, unsigned * y)
{
	return (unsigned *)0xdeadbeef;
};

unsigned __attribute__((noinline))
gen_movsd (unsigned * operand0, unsigned * operand1)
{
	return *start_sequence(operand0, operand1);
}

int main(void)
{
  unsigned x, y;

  x = 13;
  y = 14;
  return (int)gen_movsd (&x, &y);
}