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