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      1 /* This testcase is part of GDB, the GNU debugger.
      2 
      3    Copyright 2021-2024 Free Software Foundation, Inc.
      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 static void inline_func (void);
     19 static void normal_func (void);
     20 
     21 volatile int global_var;
     22 volatile int level_counter;
     23 
     24 static void __attribute__((noinline))
     25 normal_func (void)
     26 {
     27   /* Do some work.  */
     28   ++global_var;
     29 
     30   /* Now the inline function.  */
     31   --level_counter;
     32   inline_func ();
     33   ++level_counter;
     34 
     35   /* Do some work.  */
     36   ++global_var;
     37 }
     38 
     39 static inline void __attribute__((__always_inline__))
     40 inline_func (void)
     41 {
     42   if (level_counter > 1)
     43     {
     44       --level_counter;
     45       normal_func ();
     46       ++level_counter;
     47     }
     48   else
     49     ++global_var;	/* Break here.  */
     50 }
     51 
     52 int
     53 main ()
     54 {
     55   level_counter = 6;
     56   normal_func ();
     57   return 0;
     58 }
     59