[gcc r16-1678] Mark pass_sccopy gate and execute functions as final override

[Martin Jambor]

https://gcc.gnu.org/g:db5cda85e636e0f65b57d807caceeee214d38356

commit r16-1678-gdb5cda85e636e0f65b57d807caceeee214d38356
Author: Martin Jambor <mjambor@suse.cz>
Date:   Wed Jun 25 16:53:03 2025 +0200

    Mark pass_sccopy gate and execute functions as final override
    
    It is customary to mark the gate and execute functions of the classes
    representing passes as final override but this is missing in
    pass_sccopy.  This patch adds it which also silences clang warnings
    about it.
    
    gcc/ChangeLog:
    
    2025-06-24  Martin Jambor  <mjambor@suse.cz>
    
            * gimple-ssa-sccopy.cc (class pass_sccopy): Mark member functions
            gate and execute as final override.

Diff:
---
 gcc/gimple-ssa-sccopy.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/gimple-ssa-sccopy.cc b/gcc/gimple-ssa-sccopy.cc
index c93374572a9e..341bae46080b 100644
--- a/gcc/gimple-ssa-sccopy.cc
+++ b/gcc/gimple-ssa-sccopy.cc
@@ -699,8 +699,8 @@ public:
   {}
 
   /* opt_pass methods: */
-  virtual bool gate (function *) { return true; }
-  virtual unsigned int execute (function *);
+  virtual bool gate (function *) final override { return true; }
+  virtual unsigned int execute (function *) final override;
   opt_pass * clone () final override { return new pass_sccopy (m_ctxt); }
 }; // class pass_sccopy