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)31inline 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)41inline ATTR int func2(int arg2) 42 { 43 return x * func1 (arg2); 44 } 45 main(void)46int 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