gold/testsuite/icf_preemptible_functions_test.cc

   1 // icf_preemptible_functions_test.cc -- a test case for gold
   2
   3 // Copyright (C) 2010-2021 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 that preemptible functions are
  24 // correctly handled by ICF.  In this program, foo and bar should not
  25 // be folded although they are identical as zap or zip could be preempted.
  26
  27 int zap()
  28 {
  29   return 0;
  30 }
  31
  32 int zip()
  33 {
  34   return 0;
  35 }
  36
  37 int foo()
  38 {
  39   zap();
  40   return 0;
  41 }
  42
  43 int bar()
  44 {
  45   zip();
  46   return 0;
  47 }