--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/analyzer/analyzer-pass.cc	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,102 @@
+/* Integration of the analyzer with GCC's pass manager.
+   Copyright (C) 2019-2020 Free Software Foundation, Inc.
+   Contributed by David Malcolm <dmalcolm@redhat.com>.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "context.h"
+#include "tree-pass.h"
+#include "diagnostic.h"
+#include "options.h"
+#include "analyzer/engine.h"
+
+namespace {
+
+/* Data for the analyzer pass.  */
+
+const pass_data pass_data_analyzer =
+{
+  IPA_PASS, /* type */
+  "analyzer", /* name */
+  OPTGROUP_NONE, /* optinfo_flags */
+  TV_ANALYZER, /* tv_id */
+  PROP_ssa, /* properties_required */
+  0, /* properties_provided */
+  0, /* properties_destroyed */
+  0, /* todo_flags_start */
+  0, /* todo_flags_finish */
+};
+
+/* The analyzer pass.  */
+
+class pass_analyzer : public ipa_opt_pass_d
+{
+public:
+   pass_analyzer(gcc::context *ctxt)
+   : ipa_opt_pass_d (pass_data_analyzer, ctxt,
+		     NULL, /* generate_summary */
+		     NULL, /* write_summary */
+		     NULL, /* read_summary */
+		     NULL, /* write_optimization_summary */
+		     NULL, /* read_optimization_summary */
+		     NULL, /* stmt_fixup */
+		     0, /* function_transform_todo_flags_start */
+		     NULL, /* function_transform */
+		     NULL) /* variable_transform */
+  {}
+
+  /* opt_pass methods: */
+  bool gate (function *) FINAL OVERRIDE;
+  unsigned int execute (function *) FINAL OVERRIDE;
+}; // class pass_analyzer
+
+/* Only run the analyzer if -fanalyzer.  */
+
+bool
+pass_analyzer::gate (function *)
+{
+  return flag_analyzer != 0;
+}
+
+/* Entrypoint for the analyzer pass.  */
+
+unsigned int
+pass_analyzer::execute (function *)
+{
+#if ENABLE_ANALYZER
+  ana::run_checkers ();
+#else
+  sorry ("%qs was not enabled in this build of GCC"
+	 " (missing configure-time option %qs)",
+	 "-fanalyzer", "--enable-analyzer");
+#endif
+
+  return 0;
+}
+
+} // anon namespace
+
+/* Make an instance of the analyzer pass.  */
+
+ipa_opt_pass_d *
+make_pass_analyzer (gcc::context *ctxt)
+{
+  return new pass_analyzer (ctxt);
+}