Remove unused range_int_cst_singleton_p.

From-SVN: r277792

gcc/ChangeLog

 2019-11-04  Aldy Hernandez  <aldyh@redhat.com>
 
+	* tree-vrp.c (range_int_cst_singleton_p): Remove.
+	* tree-vrp.h (range_int_cst_singleton_p): Remove.
+
+2019-11-04  Aldy Hernandez  <aldyh@redhat.com>
+
 	* tree-vrp.c (value_range_base::normalize_addresses): Handle
 	VR_UNDEFINED.
 

gcc/tree-vrp.c

@@ -945,15 +945,6 @@ range_int_cst_p (const value_range_base *vr)
   return (vr->kind () == VR_RANGE && range_has_numeric_bounds_p (vr));
 }
 
-/* Return true if VR is a INTEGER_CST singleton.  */
-
-bool
-range_int_cst_singleton_p (const value_range_base *vr)
-{
-  return (range_int_cst_p (vr)
-	  && tree_int_cst_equal (vr->min (), vr->max ()));
-}
-
 /* Return the single symbol (an SSA_NAME) contained in T if any, or NULL_TREE
    otherwise.  We only handle additive operations and set NEG to true if the
    symbol is negated and INV to the invariant part, if any.  */

gcc/tree-vrp.h

@@ -282,7 +282,6 @@ extern bool infer_value_range (gimple *, tree, tree_code *, tree *);
 extern bool vrp_bitmap_equal_p (const_bitmap, const_bitmap);
 
 extern bool range_int_cst_p (const value_range_base *);
-extern bool range_int_cst_singleton_p (const value_range_base *);
 
 extern int compare_values (tree, tree);
 extern int compare_values_warnv (tree, tree, bool *);