Home | History | Annotate | Download | only in testsuite
      1 // icf_safe_test.cc -- a test case for gold
      2 
      3 // Copyright (C) 2009-2014 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 // 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