The fma_forest, fma_root_node and func_fma_steering classes lack a copy constructor.

The fma_forest, fma_root_node and func_fma_steering classes lack a
copy constructor.  However, they contain pointers to allocated memory
so this omission can be regarded as poor style.  We don't need to copy
such objects, so declare the copy constructor private to inhibit
accidental copying.

2019-04-08  Andrea Corallo  <andrea.corallo@arm.com>

	PR target/83033
	* config/aarch64/cortex-a57-fma-steering.c (fma_forest): Prohibit copy
	construction.
	(fma_root_node): Likewise.
	(func_fma_steering): Likewise.

From-SVN: r270207

gcc/ChangeLog

+2019-04-08  Andrea Corallo  <andrea.corallo@arm.com>
+
+	PR target/83033
+	* config/aarch64/cortex-a57-fma-steering.c (fma_forest): Prohibit copy
+	construction.
+	(fma_root_node): Likewise.
+	(func_fma_steering): Likewise.
+
 2019-04-08  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/89865

gcc/config/aarch64/cortex-a57-fma-steering.c

@@ -114,6 +114,9 @@ public:
   void dispatch ();
 
 private:
+  /* Prohibit copy construction.  */
+  fma_forest (const fma_forest &);
+
   /* The list of roots that form this forest.  */
   std::list<fma_root_node *> *m_roots;
 
@@ -148,6 +151,10 @@ public:
   void rename (fma_forest *);
   void dump_info (fma_forest *);
 
+private:
+  /* Prohibit copy construction.  */
+  fma_node (const fma_node &);
+
 protected:
   /* Root node that lead to this node.  */
   fma_root_node *m_root;
@@ -203,6 +210,9 @@ public:
   void execute_fma_steering ();
 
 private:
+  /* Prohibit copy construction.  */
+  func_fma_steering (const func_fma_steering &);
+
   void dfs (void (*) (fma_forest *), void (*) (fma_forest *, fma_root_node *),
 	    void (*) (fma_forest *, fma_node *), bool);
   void analyze ();