1 /* Copyright (C) 2008-2013 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 
25 int x, y;
26 volatile int result;
27 volatile int *array_p;
28 
29 void bar(void);
30 
func1(int arg1)31 inline ATTR int func1(int arg1)
32 {
33   int array[64];
34   array_p = array;
35   array[0] = result;
36   array[1] = arg1;
37   bar ();
38   return x * y + array_p[0] * arg1;
39 }
40 
func2(int arg2)41 inline ATTR int func2(int arg2)
42 {
43   return x * func1 (arg2);
44 }
45 
main(void)46 int main (void)
47 {
48   int val;
49 
50   x = 7;
51   y = 8;
52   bar ();
53 
54   val = func1 (result);
55   result = val;
56 
57   val = func2 (result);
58   result = val;
59 
60   return 0;
61 }
62