1// icf_safe_test.cc -- a test case for gold 2 3// Copyright 2009 Free Software Foundation, Inc. 4// Written by Sriraman Tallam <tmsriram@google.com>. 5 6// This file is part of gold. 7 8// This program is free software; you can redistribute it and/or modify 9// it under the terms of the GNU General Public License as published by 10// the Free Software Foundation; either version 3 of the License, or 11// (at your option) any later version. 12 13// This program is distributed in the hope that it will be useful, 14// but WITHOUT ANY WARRANTY; without even the implied warranty of 15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16// GNU General Public License for more details. 17 18// You should have received a copy of the GNU General Public License 19// along with this program; if not, write to the Free Software 20// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 21// MA 02110-1301, USA. 22 23// The goal of this program is to verify if identical code folding 24// in safe mode correctly folds only ctors and dtors. kept_func_1 must 25// not be folded into kept_func_2 other than for X86 (32 and 64 bit) 26// which can use relocation types to determine if function pointers are 27// taken. kept_func_3 should never be folded as its pointer is taken. 28// The ctor and dtor of class A must be folded. 29 30class A 31{ 32 public: 33 A() 34 { 35 } 36 ~A() 37 { 38 } 39}; 40 41A a; 42 43int kept_func_1() 44{ 45 return 1; 46} 47 48int kept_func_2() 49{ 50 return 1; 51} 52 53int kept_func_3() 54{ 55 return 1; 56} 57 58int main() 59{ 60 int (*p)() = kept_func_3; 61 p(); 62 return 0; 63} 64