1 // icf_virtual_function_folding_test.cc -- a test case for gold 2 3 // Copyright (C) 2010-2014 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 // Foo::fn1 is folded into fn2 with ICF. Since this file is linked as a 24 // position independent executable, a dynamic reloc is needed 25 // for the virtual call fn1 entry in the vtable. This test makes sure 26 // the call to Foo::fn1 works correctly after the folding. 27 28 int fn2(void *) 29 { 30 return 0xA; 31 } 32 33 namespace 34 { 35 36 class Bar 37 { 38 public: 39 virtual ~Bar() { } 40 virtual int fn1(); 41 }; 42 43 int Bar::fn1() 44 { 45 return 123; 46 } 47 48 class Foo : public Bar 49 { 50 virtual int fn1(); 51 }; 52 53 int Foo::fn1() 54 { 55 return 0xA; 56 } 57 58 Bar* get() 59 { 60 Bar *f = new Foo(); 61 return f; 62 } 63 64 } // end of anonymous namespace. 65 66 int main() 67 { 68 Bar *f = get(); 69 f->fn1(); 70 return 0; 71 } 72
