gcc/testsuite/gcc.dg/tree-ssa/pr42893.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-optimized" } */
   3
   4 struct frame_info;
   5 void tui_registers_changed_hook (void);
   6 extern struct frame_info *deprecated_selected_frame;
   7 int tui_refreshing_registers = 0;
   8 void
   9 tui_registers_changed_hook (void)
  10 {
  11   struct frame_info *fi;
  12   fi = deprecated_selected_frame;
  13   if (fi)
  14
  15     {
  16       if (tui_refreshing_registers == 0)
  17
  18         {
  19           tui_refreshing_registers = 1;
  20           tui_refreshing_registers = 0;
  21         }
  22     }
  23   return;
  24 }
  25
  26 /* No references to tui_refreshing_registers should remain.  */
  27 /* { dg-final { scan-tree-dump-not "tui_refreshing_registers" "optimized"} } */
  28
  29