gdb/testsuite/gdb.dwarf2/pieces-optimized-out.c

   1 /* Copyright (C) 2013 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 /* This file is not actually compiled, the .S file is committed alongside
  19    this file.  The reason is that changes to the compiler might result
  20    in different debug information being created, this could break the
  21    test.  */
  22
  23 struct str
  24 {
  25   int a;
  26   int b;
  27   int c : 3;
  28   int d : 3;
  29 };
  30
  31 int __attribute__ ((noinline))
  32 foo (int arg)
  33 {
  34   return arg;
  35 }
  36
  37 int
  38 main ( void )
  39 {
  40   struct str s = {5, 7, 1, 2};
  41   int v;
  42
  43   v = (s.a << 1);
  44   v += foo (v);
  45   return v + 5 + s.a;
  46 }
  47