+2009-06-16 Olatunji Ruwase <tjruwase@google.com>
+
+ * plugin.c(position_pass): Skip newly inserted pass during list
+ traversal to avoid repeated insertion.
+
2009-06-16 Ian Lance Taylor <iant@google.com>
* vec.h (VEC_stack_alloc): Define different version if
case PASS_POS_INSERT_AFTER:
new_pass->next = pass->next;
pass->next = new_pass;
+
+ /* Skip newly inserted pass to avoid repeated
+ insertions in the case where the new pass and the
+ existing one have the same name. */
+ pass = new_pass;
break;
case PASS_POS_INSERT_BEFORE:
new_pass->next = pass;
+2009-06-05 Olatunji Ruwase <tjruwase@google.com>
+
+ * gcc.dg/plugin/one_time_plugin.c: New test.
+ * gcc.dg/plugin/one_time-test-1.c: New test.
+ * gcc.dg/plugin/plugin.exp: Added one_time_plugin.c test.
+
2009-06-16 Ian Lance Taylor <iant@google.com>
* g++.dg/warn/skip-1.C: New testcase.
--- /dev/null
+/* Plugin that prints message if it inserted (and invoked) more than once. */
+#include "config.h"
+#include "gcc-plugin.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "toplev.h"
+#include "gimple.h"
+#include "tree-pass.h"
+#include "intl.h"
+
+static bool one_pass_gate (void)
+{
+ return true;
+}
+
+static unsigned int one_pass_exec (void)
+{
+ static int counter = 0;
+
+ if (counter > 0) {
+ printf ("Executed more than once \n");
+ }
+ counter++;
+}
+
+struct gimple_opt_pass one_pass =
+{
+ {
+ GIMPLE_PASS,
+ "useless", /* name */
+ one_pass_gate, /* gate */
+ one_pass_exec, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ 0, /* tv_id */
+ PROP_gimple_any, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ TODO_dump_func /* todo_flags_finish */
+ }
+};
+
+
+int plugin_init (struct plugin_name_args *plugin_info,
+ struct plugin_gcc_version *version)
+{
+ struct plugin_pass p;
+
+ p.pass = &one_pass.pass;
+ p.reference_pass_name = "useless";
+ p.ref_pass_instance_number = 1;
+ p.pos_op = PASS_POS_INSERT_AFTER;
+
+ register_callback ("one_pass", PLUGIN_PASS_MANAGER_SETUP, NULL, &p);
+
+ return 0;
+}