VR: mitigate -Wfinal-dtor-non-final-class clang warnings

Fixes:

gcc/value-range-storage.h:129:40: warning: class with destructor marked 'final' cannot be inherited from [-Wfinal-dtor-non-final-class]
gcc/value-range-storage.h:146:36: warning: class with destructor marked 'final' cannot be inherited from [-Wfinal-dtor-non-final-class]

gcc/ChangeLog:

	* value-range-storage.h (class obstack_vrange_allocator): Mark
	  the class as final.
	(class ggc_vrange_allocator): Likewise.

diff --git a/gcc/value-range-storage.h b/gcc/value-range-storage.h
index 3fac5ea..9cd6b9f 100644 (file)
--- a/gcc/value-range-storage.h
+++ b/gcc/value-range-storage.h
@@ -119,7 +119,7 @@ class GTY (()) frange_storage_slot
   frange_props m_props;
 };
 
-class obstack_vrange_allocator : public vrange_allocator
+class obstack_vrange_allocator final: public vrange_allocator
 {
 public:
   obstack_vrange_allocator ()
@@ -139,7 +139,7 @@ private:
   obstack m_obstack;
 };
 
-class ggc_vrange_allocator : public vrange_allocator
+class ggc_vrange_allocator final: public vrange_allocator
 {
 public:
   ggc_vrange_allocator () { }