1 // icf_safe_test.cc -- a test case for gold 2 3 // Copyright (C) 2009-2016 Free Software Foundation, Inc. 4 // Written by Sriraman Tallam <tmsriram (at) 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 30 class A 31 { 32 public: 33 A() 34 { 35 } 36 ~A() 37 { 38 } 39 }; 40 41 A a; 42 43 int kept_func_1() 44 { 45 return 1; 46 } 47 48 int kept_func_2() 49 { 50 return 1; 51 } 52 53 int kept_func_3() 54 { 55 return 1; 56 } 57 58 int main() 59 { 60 int (*p)() = kept_func_3; 61 p(); 62 return 0; 63 } 64
