analyzer: use std::unique_ptr for known functions

gcc/analyzer/ChangeLog:
	* analyzer.h: Use std::unique_ptr for known functions.
	* engine.cc: Likewise.
	* known-function-manager.cc: Likewise.
	* known-function-manager.h: Likewise.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/analyzer_kernel_plugin.c: Use std::unique_ptr for
	known functions.
	* gcc.dg/plugin/analyzer_known_fns_plugin.c: Likewise.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>

6 files changed, 15 insertions, 12 deletions

diff --git a/gcc/analyzer/analyzer.h b/gcc/analyzer/analyzer.h
index d8d3e78..88fdc1d 100644
--- a/gcc/analyzer/analyzer.h
+++ b/gcc/analyzer/analyzer.h
@@ -244,7 +244,7 @@ class plugin_analyzer_init_iface
 public:
   virtual void register_state_machine (state_machine *) = 0;
   virtual void register_known_function (const char *name,
-					known_function *) = 0;
+					std::unique_ptr<known_function>) = 0;
   virtual logger *get_logger () const = 0;
 };
 
diff --git a/gcc/analyzer/engine.cc b/gcc/analyzer/engine.cc
index d770c6f..fe17f8f 100644
--- a/gcc/analyzer/engine.cc
+++ b/gcc/analyzer/engine.cc
@@ -5960,10 +5960,10 @@ public:
   }
 
   void register_known_function (const char *name,
-				known_function *kf) final override
+				std::unique_ptr<known_function> kf) final override
   {
     LOG_SCOPE (m_logger);
-    m_known_fn_mgr->add (name, kf);
+    m_known_fn_mgr->add (name, std::move (kf));
   }
 
   logger *get_logger () const final override
diff --git a/gcc/analyzer/known-function-manager.cc b/gcc/analyzer/known-function-manager.cc
index 42dfe3a..7341b06 100644
--- a/gcc/analyzer/known-function-manager.cc
+++ b/gcc/analyzer/known-function-manager.cc
@@ -48,11 +48,12 @@ known_function_manager::~known_function_manager ()
 }
 
 void
-known_function_manager::add (const char *name, known_function *kf)
+known_function_manager::add (const char *name,
+			     std::unique_ptr<known_function> kf)
 {
   LOG_FUNC_1 (get_logger (), "registering %s", name);
   tree id = get_identifier (name);
-  m_map_id_to_kf.put (id, kf);
+  m_map_id_to_kf.put (id, kf.release ());
 }
 
 const known_function *
diff --git a/gcc/analyzer/known-function-manager.h b/gcc/analyzer/known-function-manager.h
index 2b95b7e..daf1bc5 100644
--- a/gcc/analyzer/known-function-manager.h
+++ b/gcc/analyzer/known-function-manager.h
@@ -30,7 +30,7 @@ class known_function_manager : public log_user
 public:
   known_function_manager (logger *logger);
   ~known_function_manager ();
-  void add (const char *name, known_function *kf);
+  void add (const char *name, std::unique_ptr<known_function> kf);
   const known_function *get_by_identifier (tree identifier);
   const known_function *get_by_fndecl (tree fndecl);
 
diff --git a/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c b/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c
index dfa30c8..92b4dfb 100644
--- a/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c
+++ b/gcc/testsuite/gcc.dg/plugin/analyzer_kernel_plugin.c
@@ -210,10 +210,11 @@ kernel_analyzer_init_cb (void *gcc_data, void */*user_data*/)
   LOG_SCOPE (iface->get_logger ());
   if (0)
     inform (input_location, "got here: kernel_analyzer_init_cb");
-  iface->register_known_function ("copy_from_user",
-				  new known_function_copy_from_user ());
+  iface->register_known_function
+    ("copy_from_user",
+     make_unique<known_function_copy_from_user> ());
   iface->register_known_function ("copy_to_user",
-				  new known_function_copy_to_user ());
+				  make_unique<known_function_copy_to_user> ());
 }
 
 } // namespace ana
diff --git a/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c b/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c
index 5c1f398..e9f607f 100644
--- a/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c
+++ b/gcc/testsuite/gcc.dg/plugin/analyzer_known_fns_plugin.c
@@ -175,9 +175,10 @@ known_fn_analyzer_init_cb (void *gcc_data, void */*user_data*/)
   if (0)
     inform (input_location, "got here: known_fn_analyzer_init_cb");
   iface->register_known_function ("returns_42",
-				  new known_function_returns_42 ());
-  iface->register_known_function ("attempt_to_copy",
-				  new known_function_attempt_to_copy ());
+				  make_unique<known_function_returns_42> ());
+  iface->register_known_function
+    ("attempt_to_copy",
+     make_unique<known_function_attempt_to_copy> ());
 }
 
 } // namespace ana