clobbered-registers-O2.c revision 1.9
1/* This file is part of GDB, the GNU debugger. 2 3 Copyright 2007-2020 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18#ifndef __GNUC__ 19#define __attribute__(x) 20#endif 21 22unsigned * __attribute__((noinline)) 23start_sequence (unsigned * x, unsigned * y) 24{ 25 return (unsigned *)0xdeadbeef; 26}; 27 28unsigned __attribute__((noinline)) 29gen_movsd (unsigned * operand0, unsigned * operand1) 30{ 31 return *start_sequence(operand0, operand1); 32} 33 34int main(void) 35{ 36 unsigned x, y; 37 38 x = 13; 39 y = 14; 40 return (int)gen_movsd (&x, &y); 41} 42