1/* Copyright (C) 2008-2020 Free Software Foundation, Inc.
2
3   This program is free software; you can redistribute it and/or modify
4   it under the terms of the GNU General Public License as published by
5   the Free Software Foundation; either version 3 of the License, or
6   (at your option) any later version.
7
8   This program is distributed in the hope that it will be useful,
9   but WITHOUT ANY WARRANTY; without even the implied warranty of
10   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11   GNU General Public License for more details.
12
13   You should have received a copy of the GNU General Public License
14   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
15
16/* This is only ever run if it is compiled with a new-enough GCC, but
17   we don't want the compilation to fail if compiled by some other
18   compiler.  */
19#ifdef __GNUC__
20#define ATTR __attribute__((always_inline))
21#else
22#define ATTR
23#endif
24
25int x, y;
26volatile int z = 0;
27volatile int result;
28volatile int *array_p;
29
30void bar(void);
31
32void
33init_array (int *array, int n)
34{
35  int i;
36  for (i = 0; i < n; ++i)
37    array[i] = 0;
38}
39
40inline ATTR int func1(int arg1)
41{
42  int array[64];
43  init_array (array, 64);
44  array_p = array;
45  array[0] = result;
46  array[1] = arg1;
47  bar ();
48  return x * y + array_p[0] * arg1;
49}
50
51inline ATTR int func2(int arg2)
52{
53  return x * func1 (arg2);
54}
55
56int main (void)
57{
58  int val;
59
60  x = 7;
61  y = 8;
62  bar ();
63
64  val = func1 (result);
65  result = val;
66
67  val = func2 (result);
68  result = val;
69
70  return 0;
71}
72