Needs review.
Changed in v5:
- update ChangeLog path
- updated copyright years to include 2020
Changed in v4:
- Remove include of gcc-plugin.h, reworking includes accordingly.
- Use TV_ANALYZER rather than TV_NONE for the pass
- Add a gate function to the pass
- Move the check for #if ENABLE_ANALYZER from the driver to the
pass's execute vfunc
- Expose the pass via make_pass_analyzer, rather than via the plugin
pass registration mechanism
Changed in v3:
- added to passes.def and tree-pass.h
gcc/analyzer/ChangeLog:
* analyzer-pass.cc: New file.
gcc/ChangeLog:
* passes.def (pass_analyzer): Add before
pass_ipa_whole_program_visibility.
* tree-pass.h (make_pass_analyzer): New decl.
---
gcc/analyzer/analyzer-pass.cc | 102 ++++++++++++++++++++++++++++++++++
gcc/passes.def | 1 +
gcc/tree-pass.h | 1 +
3 files changed, 104 insertions(+)
create mode 100644 gcc/analyzer/analyzer-pass.cc
diff --git a/gcc/analyzer/analyzer-pass.cc b/gcc/analyzer/analyzer-pass.cc
new file mode 100644
index 000000000000..4070e6d44b5a
--- /dev/null
+++ b/gcc/analyzer/analyzer-pass.cc
@@ -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 <dmalc...@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
+ 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);
+}
diff --git a/gcc/passes.def b/gcc/passes.def
index b6bd4f3d3145..0106c8d5fd07 100644
--- a/gcc/passes.def
+++ b/gcc/passes.def
@@ -142,6 +142,7 @@ along with GCC; see the file COPYING3. If not see
TERMINATE_PASS_LIST (all_small_ipa_passes)
INSERT_PASSES_AFTER (all_regular_ipa_passes)
+ NEXT_PASS (pass_analyzer);
NEXT_PASS (pass_ipa_whole_program_visibility);
NEXT_PASS (pass_ipa_profile);
NEXT_PASS (pass_ipa_icf);
diff --git a/gcc/tree-pass.h b/gcc/tree-pass.h
index 5ff43572b81d..b6abeab751ec 100644
--- a/gcc/tree-pass.h
+++ b/gcc/tree-pass.h
@@ -490,6 +490,7 @@ extern simple_ipa_opt_pass *make_pass_build_ssa_passes
(gcc::context *ctxt);
extern simple_ipa_opt_pass *make_pass_local_optimization_passes (gcc::context
*ctxt);
extern simple_ipa_opt_pass *make_pass_ipa_remove_symbols (gcc::context *ctxt);
+extern ipa_opt_pass_d *make_pass_analyzer (gcc::context *ctxt);
extern ipa_opt_pass_d *make_pass_ipa_whole_program_visibility (gcc::context
*ctxt);
extern simple_ipa_opt_pass *make_pass_ipa_increase_alignment (gcc::context
--
2.21.0
