[PATCH 02/10] Add 'final' and 'override' on dom_walker vfunc impls

[David Malcolm <dmalcolm@redhat.com>]

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>
---
 gcc/compare-elim.cc                  |  2 +-
 gcc/gimple-ssa-strength-reduction.cc |  2 +-
 gcc/ipa-prop.cc                      |  4 ++--
 gcc/rtl-ssa/blocks.cc                |  4 ++--
 gcc/tree-into-ssa.cc                 | 10 +++++-----
 gcc/tree-ssa-dom.cc                  |  4 ++--
 gcc/tree-ssa-math-opts.cc            |  2 +-
 gcc/tree-ssa-phiopt.cc               |  4 ++--
 gcc/tree-ssa-propagate.cc            |  4 ++--
 gcc/tree-ssa-sccvn.cc                |  4 ++--
 gcc/tree-ssa-strlen.cc               |  4 ++--
 gcc/tree-ssa-uncprop.cc              |  4 ++--
 12 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/gcc/compare-elim.cc b/gcc/compare-elim.cc
index e869d9d3249..4a23202f8ff 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 2b559e96fc8..fb2bb9f4e74 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 c6c745f84a0..03f0ba2ec75 100644
--- a/gcc/ipa-prop.cc
+++ b/gcc/ipa-prop.cc
@@ -3004,7 +3004,7 @@ 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;
@@ -5653,7 +5653,7 @@ 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 959fad8f829..6b03dd03747 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 46df57ae0e1..9631d8c6556 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 97e17ca68e4..1a44b10756f 100644
--- a/gcc/tree-ssa-dom.cc
+++ b/gcc/tree-ssa-dom.cc
@@ -737,8 +737,8 @@ 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 fe9f37b4cd4..a4492c96419 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 162ca7098cd..d17c49468db 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 c10ffd91766..d2d32517a8c 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 18392e031b8..7407591e98c 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 2cceba6f7af..7b3e3899ea2 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 510f8319d8c..900bf336e2e 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:
 
-- 
2.26.3