gcc/testsuite/gcc.dg/plugin/one_time_plugin.c

   1 /* Plugin that prints message if it inserted (and invoked) more than once. */
   2 #include "config.h"
   3 #include "gcc-plugin.h"
   4 #include "system.h"
   5 #include "coretypes.h"
   6 #include "tree.h"
   7 #include "tm.h"
   8 #include "toplev.h"
   9 #include "pointer-set.h"
  10 #include "hash-table.h"
  11 #include "vec.h"
  12 #include "ggc.h"
  13 #include "basic-block.h"
  14 #include "tree-ssa-alias.h"
  15 #include "internal-fn.h"
  16 #include "gimple-fold.h"
  17 #include "tree-eh.h"
  18 #include "gimple-expr.h"
  19 #include "is-a.h"
  20 #include "gimple.h"
  21 #include "tree-pass.h"
  22 #include "intl.h"
  23 #include "context.h"
  24
  25 int plugin_is_GPL_compatible;
  26
  27 namespace {
  28
  29 const pass_data pass_data_one_pass =
  30 {
  31   GIMPLE_PASS, /* type */
  32   "cfg", /* name */
  33   OPTGROUP_NONE, /* optinfo_flags */
  34   true, /* has_execute */
  35   TV_NONE, /* tv_id */
  36   PROP_gimple_any, /* properties_required */
  37   0, /* properties_provided */
  38   0, /* properties_destroyed */
  39   0, /* todo_flags_start */
  40   0, /* todo_flags_finish */
  41 };
  42
  43 class one_pass : public gimple_opt_pass
  44 {
  45 public:
  46   one_pass(gcc::context *ctxt)
  47     : gimple_opt_pass(pass_data_one_pass, ctxt),
  48       counter(0)
  49   {}
  50
  51   /* opt_pass methods: */
  52   virtual bool gate (function *);
  53   virtual unsigned int execute (function *);
  54
  55 private:
  56   int counter;
  57 }; // class one_pass
  58
  59 } // anon namespace
  60
  61 bool one_pass::gate (function *)
  62 {
  63   return true;
  64 }
  65
  66 unsigned int
  67 one_pass::execute (function *)
  68 {
  69   if (counter > 0) {
  70     printf ("Executed more than once \n");
  71  }
  72  counter++;
  73  return 0;
  74 }
  75
  76 gimple_opt_pass *
  77 make_one_pass (gcc::context *ctxt)
  78 {
  79   return new one_pass (ctxt);
  80 }
  81
  82
  83 int plugin_init (struct plugin_name_args *plugin_info,
  84                  struct plugin_gcc_version *version)
  85 {
  86   struct register_pass_info p;
  87
  88   p.pass = make_one_pass (g);
  89   p.reference_pass_name = "cfg";
  90   p.ref_pass_instance_number = 1;
  91   p.pos_op = PASS_POS_INSERT_AFTER;
  92
  93   register_callback ("one_pass", PLUGIN_PASS_MANAGER_SETUP, NULL, &p);
  94
  95   return 0;
  96 }