Example of converting global state to per-pass state.

gcc/testsuite

2013-08-13  David Malcolm  <dmalcolm@redhat.com>

	Example of converting global state to per-pass state.

	* gcc.dg/plugin/one_time_plugin.c (one_pass::execute): Convert
	global state "static int counter" to...
	(one_pass::counter): ...this instance data.

From-SVN: r201681

gcc/testsuite/ChangeLog

 2013-08-13  David Malcolm  <dmalcolm@redhat.com>
 
+	Example of converting global state to per-pass state.
+
+	* gcc.dg/plugin/one_time_plugin.c (one_pass::execute): Convert
+	global state "static int counter" to...
+	(one_pass::counter): ...this instance data.
+
+2013-08-13  David Malcolm  <dmalcolm@redhat.com>
+
 	* gcc.dg/plugin/one_time_plugin.c: (one_pass_gate): Convert
 	to member function...
 	(one_pass::gate): ...this.

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

@@ -33,13 +33,16 @@ class one_pass : public gimple_opt_pass
 {
 public:
   one_pass(gcc::context *ctxt)
-    : gimple_opt_pass(pass_data_one_pass, ctxt)
+    : gimple_opt_pass(pass_data_one_pass, ctxt),
+      counter(0)
   {}
 
   /* opt_pass methods: */
   bool gate ();
   unsigned int execute ();
 
+private:
+  int counter;
 }; // class one_pass
 
 } // anon namespace
@@ -51,8 +54,6 @@ bool one_pass::gate (void)
 
 unsigned int one_pass::execute ()
 {
-  static int counter = 0;
-
   if (counter > 0) {
     printf ("Executed more than once \n");
  }