[COMMITTED] [range-ops] Handle bitmasks for ABSU_EXPR.

[Aldy Hernandez <aldyh@redhat.com>]

gcc/ChangeLog:

	* range-op.cc (class operator_absu): Add update_bitmask.
	(operator_absu::update_bitmask): New.
---
 gcc/range-op.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/gcc/range-op.cc b/gcc/range-op.cc
index bfab53caea0..5653ca0d186 100644
--- a/gcc/range-op.cc
+++ b/gcc/range-op.cc
@@ -4221,6 +4221,8 @@ class operator_absu : public range_operator
   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;
+  virtual void update_bitmask (irange &r, const irange &lh,
+			       const irange &rh) const final override;
 } op_absu;
 
 void
@@ -4258,6 +4260,13 @@ operator_absu::wi_fold (irange &r, tree type,
   r = int_range<1> (type, new_lb, new_ub);
 }
 
+void
+operator_absu::update_bitmask (irange &r, const irange &lh,
+			      const irange &rh) const
+{
+  update_known_bitmask (r, ABSU_EXPR, lh, rh);
+}
+
 
 bool
 operator_negate::fold_range (irange &r, tree type,
-- 
2.41.0