Add 'final' and 'override' on dom_walker vfunc impls

gcc/ChangeLog:
	* compare-elim.cc: Add "final" and "override" to dom_walker vfunc
	implementations, removing redundant "virtual" as appropriate.
	* gimple-ssa-strength-reduction.cc: Likewise.
	* ipa-prop.cc: Likewise.
	* rtl-ssa/blocks.cc: Likewise.
	* tree-into-ssa.cc: Likewise.
	* tree-ssa-dom.cc: Likewise.
	* tree-ssa-math-opts.cc: Likewise.
	* tree-ssa-phiopt.cc: Likewise.
	* tree-ssa-propagate.cc: Likewise.
	* tree-ssa-sccvn.cc: Likewise.
	* tree-ssa-strlen.cc: Likewise.
	* tree-ssa-uncprop.cc: Likewise.

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

12 files changed, 24 insertions, 24 deletions

diff --git a/gcc/compare-elim.cc b/gcc/compare-elim.cc
index e869d9d..4a23202 100644
--- a/gcc/compare-elim.cc
+++ b/gcc/compare-elim.cc
@@ -283,7 +283,7 @@ public:
   find_comparison_dom_walker (cdi_direction direction)
     : dom_walker (direction) {}
 
-  virtual edge before_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
 };
 
 /* Return true if conforming COMPARE with EH_NOTE is redundant with comparison
diff --git a/gcc/gimple-ssa-strength-reduction.cc b/gcc/gimple-ssa-strength-reduction.cc
index 2b559e9..fb2bb9f 100644
--- a/gcc/gimple-ssa-strength-reduction.cc
+++ b/gcc/gimple-ssa-strength-reduction.cc
@@ -1729,7 +1729,7 @@ class find_candidates_dom_walker : public dom_walker
 public:
   find_candidates_dom_walker (cdi_direction direction)
     : dom_walker (direction) {}
-  virtual edge before_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
 };
 
 /* Find strength-reduction candidates in block BB.  */
diff --git a/gcc/ipa-prop.cc b/gcc/ipa-prop.cc
index e1fc481..7791563 100644
--- a/gcc/ipa-prop.cc
+++ b/gcc/ipa-prop.cc
@@ -3008,7 +3008,7 @@ public:
   analysis_dom_walker (struct ipa_func_body_info *fbi)
     : dom_walker (CDI_DOMINATORS), m_fbi (fbi) {}
 
-  virtual edge before_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
 
 private:
   struct ipa_func_body_info *m_fbi;
@@ -5655,7 +5655,7 @@ public:
     : dom_walker (CDI_DOMINATORS), m_fbi (fbi), m_descriptors (descs),
       m_aggval (av), m_something_changed (sc) {}
 
-  virtual edge before_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
   bool cleanup_eh ()
     { return gimple_purge_all_dead_eh_edges (m_need_eh_cleanup); }
 
diff --git a/gcc/rtl-ssa/blocks.cc b/gcc/rtl-ssa/blocks.cc
index 959fad8..6b03dd0 100644
--- a/gcc/rtl-ssa/blocks.cc
+++ b/gcc/rtl-ssa/blocks.cc
@@ -85,8 +85,8 @@ class function_info::bb_walker : public dom_walker
 {
 public:
   bb_walker (function_info *, build_info &);
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 
 private:
   // Information about the function we're building.
diff --git a/gcc/tree-into-ssa.cc b/gcc/tree-into-ssa.cc
index 46df57a..9631d8c 100644
--- a/gcc/tree-into-ssa.cc
+++ b/gcc/tree-into-ssa.cc
@@ -1462,8 +1462,8 @@ public:
   rewrite_dom_walker (cdi_direction direction)
     : dom_walker (direction, ALL_BLOCKS, NULL) {}
 
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 };
 
 /* SSA Rewriting Step 1.  Initialization, create a block local stack
@@ -2148,8 +2148,8 @@ public:
   rewrite_update_dom_walker (cdi_direction direction)
     : dom_walker (direction, ALL_BLOCKS, NULL) {}
 
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 };
 
 /* Initialization of block data structures for the incremental SSA
@@ -2300,7 +2300,7 @@ public:
   mark_def_dom_walker (cdi_direction direction);
   ~mark_def_dom_walker ();
 
-  virtual edge before_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
 
 private:
   /* Notice that this bitmap is indexed using variable UIDs, so it must be
diff --git a/gcc/tree-ssa-dom.cc b/gcc/tree-ssa-dom.cc
index e282123..dcaf467 100644
--- a/gcc/tree-ssa-dom.cc
+++ b/gcc/tree-ssa-dom.cc
@@ -670,8 +670,8 @@ public:
       m_threader = threader;
     }
 
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 
 private:
 
diff --git a/gcc/tree-ssa-math-opts.cc b/gcc/tree-ssa-math-opts.cc
index fe9f37b..a4492c9 100644
--- a/gcc/tree-ssa-math-opts.cc
+++ b/gcc/tree-ssa-math-opts.cc
@@ -4918,7 +4918,7 @@ public:
 
   /* The actual actions performed in the walk.  */
 
-  virtual void after_dom_children (basic_block);
+  void after_dom_children (basic_block) final override;
 
   /* Set of results of chains of multiply and add statement combinations that
      were not transformed into FMAs because of active deferring.  */
diff --git a/gcc/tree-ssa-phiopt.cc b/gcc/tree-ssa-phiopt.cc
index 7efcc07..2f4bebe 100644
--- a/gcc/tree-ssa-phiopt.cc
+++ b/gcc/tree-ssa-phiopt.cc
@@ -2978,8 +2978,8 @@ public:
     : dom_walker (direction), m_nontrapping (ps), m_seen_refs (128)
   {}
 
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 
 private:
 
diff --git a/gcc/tree-ssa-propagate.cc b/gcc/tree-ssa-propagate.cc
index 5983f02..163b24f 100644
--- a/gcc/tree-ssa-propagate.cc
+++ b/gcc/tree-ssa-propagate.cc
@@ -679,8 +679,8 @@ public:
       BITMAP_FREE (need_eh_cleanup);
     }
 
-    virtual edge before_dom_children (basic_block);
-    virtual void after_dom_children (basic_block bb)
+    edge before_dom_children (basic_block) final override;
+    void after_dom_children (basic_block bb) final override
     {
       substitute_and_fold_engine->post_fold_bb (bb);
     }
diff --git a/gcc/tree-ssa-sccvn.cc b/gcc/tree-ssa-sccvn.cc
index ee5b95c..ef833f5 100644
--- a/gcc/tree-ssa-sccvn.cc
+++ b/gcc/tree-ssa-sccvn.cc
@@ -2493,8 +2493,8 @@ public:
   eliminate_dom_walker (cdi_direction, bitmap);
   ~eliminate_dom_walker ();
 
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 
   virtual tree eliminate_avail (basic_block, tree op);
   virtual void eliminate_push_avail (basic_block, tree op);
diff --git a/gcc/tree-ssa-strlen.cc b/gcc/tree-ssa-strlen.cc
index 2cceba6..7b3e389 100644
--- a/gcc/tree-ssa-strlen.cc
+++ b/gcc/tree-ssa-strlen.cc
@@ -243,8 +243,8 @@ public:
 
   ~strlen_pass ();
 
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 
   bool check_and_optimize_stmt (bool *cleanup_eh);
   bool check_and_optimize_call (bool *zero_write);
diff --git a/gcc/tree-ssa-uncprop.cc b/gcc/tree-ssa-uncprop.cc
index 510f831..900bf33 100644
--- a/gcc/tree-ssa-uncprop.cc
+++ b/gcc/tree-ssa-uncprop.cc
@@ -298,8 +298,8 @@ class uncprop_dom_walker : public dom_walker
 public:
   uncprop_dom_walker (cdi_direction direction) : dom_walker (direction) {}
 
-  virtual edge before_dom_children (basic_block);
-  virtual void after_dom_children (basic_block);
+  edge before_dom_children (basic_block) final override;
+  void after_dom_children (basic_block) final override;
 
 private: