Implement pointer_or_operator.

The class pointer_or is no longer used, and can be removed.  Its
functionality was never moved to the new dispatch system.
This implements operator_bitwise_or::fold_range() for prange operands.

	* range-op-mixed.h (operator_bitwise_or::fold_range): Add prange
	variant.
	* range-op-ptr.cc (class pointer_or_operator): Remove.
	(pointer_or_operator::op1_range): Remove.
	(pointer_or_operator::op2_range): Remove.
	(pointer_or_operator::wi_fold): Remove.
	(operator_bitwise_or::fold_range): New prange variant.

2 files changed, 16 insertions, 53 deletions

diff --git a/gcc/range-op-mixed.h b/gcc/range-op-mixed.h
index cc1db2f..f7c447d 100644
--- a/gcc/range-op-mixed.h
+++ b/gcc/range-op-mixed.h
@@ -809,9 +809,15 @@ protected:
 class operator_bitwise_or : public range_operator
 {
 public:
+  using range_operator::fold_range;
   using range_operator::op1_range;
   using range_operator::op2_range;
   using range_operator::update_bitmask;
+
+  bool fold_range (prange &r, tree type,
+		   const prange &op1,
+		   const prange &op2,
+		   relation_trio) const final override;
   bool op1_range (irange &r, tree type,
 		  const irange &lhs, const irange &op2,
 		  relation_trio rel = TRIO_VARYING) const override;
diff --git a/gcc/range-op-ptr.cc b/gcc/range-op-ptr.cc
index dd312a8..ef2b2cc 100644
--- a/gcc/range-op-ptr.cc
+++ b/gcc/range-op-ptr.cc
@@ -379,69 +379,26 @@ pointer_plus_operator::op2_range (irange &r, tree type,
   return true;
 }
 
-
-class pointer_or_operator : public range_operator
-{
-public:
-  using range_operator::op1_range;
-  using range_operator::op2_range;
-  virtual bool op1_range (irange &r, tree type,
-			  const irange &lhs,
-			  const irange &op2,
-			  relation_trio rel = TRIO_VARYING) const;
-  virtual bool op2_range (irange &r, tree type,
-			  const irange &lhs,
-			  const irange &op1,
-			  relation_trio rel = TRIO_VARYING) const;
-  virtual void wi_fold (irange &r, tree type,
-			const wide_int &lh_lb, const wide_int &lh_ub,
-			const wide_int &rh_lb, const wide_int &rh_ub) const;
-} op_pointer_or;
-
-bool
-pointer_or_operator::op1_range (irange &r, tree type,
-				const irange &lhs,
-				const irange &op2 ATTRIBUTE_UNUSED,
-				relation_trio) const
-{
-  if (lhs.undefined_p ())
-    return false;
-  if (lhs.zero_p ())
-    {
-      r.set_zero (type);
-      return true;
-    }
-  r.set_varying (type);
-  return true;
-}
-
 bool
-pointer_or_operator::op2_range (irange &r, tree type,
-				const irange &lhs,
-				const irange &op1,
-				relation_trio) const
-{
-  return pointer_or_operator::op1_range (r, type, lhs, op1);
-}
-
-void
-pointer_or_operator::wi_fold (irange &r, tree type,
-			      const wide_int &lh_lb,
-			      const wide_int &lh_ub,
-			      const wide_int &rh_lb,
-			      const wide_int &rh_ub) const
+operator_bitwise_or::fold_range (prange &r, tree type,
+				 const prange &op1,
+				 const prange &op2,
+				 relation_trio) const
 {
   // For pointer types, we are really only interested in asserting
   // whether the expression evaluates to non-NULL.
-  if (!wi_includes_zero_p (type, lh_lb, lh_ub)
-      && !wi_includes_zero_p (type, rh_lb, rh_ub))
+  if (!op1.zero_p () || !op2.zero_p ())
     r.set_nonzero (type);
-  else if (wi_zero_p (type, lh_lb, lh_ub) && wi_zero_p (type, rh_lb, rh_ub))
+  else if (op1.zero_p () && op2.zero_p ())
     r.set_zero (type);
   else
     r.set_varying (type);
+
+  update_known_bitmask (r, BIT_IOR_EXPR, op1, op2);
+  return true;
 }
 
+
 class operator_pointer_diff : public range_operator
 {
   using range_operator::fold_range;