/* Copyright (C) 2008-2016 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/>. */ /* This is only ever run if it is compiled with a new-enough GCC, but we don't want the compilation to fail if compiled by some other compiler. */ #ifdef __GNUC__ #define ATTR __attribute__((always_inline)) #else #define ATTR #endif int x, y; volatile int z = 0; volatile int result; void bar(void); inline ATTR int func1(void) { bar (); return x * y; } inline ATTR int func2(void) { return x * func1 (); } int main (void) { int val; x = 7; y = 8; bar (); val = func1 (); result = val; val = func2 (); result = val; return 0; }