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[COMMITTED,range-ops] Handle bitmasks for BIT_NOT_EXPR.

Message ID 20230726084224.43416-2-aldyh@redhat.com
State New
Headers show
Series [COMMITTED,range-ops] Handle bitmasks for BIT_NOT_EXPR. | expand

Commit Message

Aldy Hernandez July 26, 2023, 8:42 a.m. UTC 
gcc/ChangeLog:

	* range-op-mixed.h (class operator_bitwise_not): Add update_bitmask.
	* range-op.cc (operator_bitwise_not::update_bitmask): New.
---
 gcc/range-op-mixed.h | 2 ++
 gcc/range-op.cc      | 7 +++++++
 2 files changed, 9 insertions(+)
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Patch

diff --git a/gcc/range-op-mixed.h b/gcc/range-op-mixed.h
index 6944742ecbc..ead41ed0515 100644
--- a/gcc/range-op-mixed.h
+++ b/gcc/range-op-mixed.h
@@ -551,6 +551,8 @@  public:
   bool op1_range (irange &r, tree type,
 		  const irange &lhs, const irange &op2,
 		  relation_trio rel = TRIO_VARYING) const final override;
+  void update_bitmask (irange &r, const irange &lh,
+		       const irange &rh) const final override;
 };
 
 class operator_bitwise_xor : public range_operator
diff --git a/gcc/range-op.cc b/gcc/range-op.cc
index d959a3e93dc..13ba973a08d 100644
--- a/gcc/range-op.cc
+++ b/gcc/range-op.cc
@@ -4027,6 +4027,13 @@  operator_bitwise_not::op1_range (irange &r, tree type,
   return fold_range (r, type, lhs, op2);
 }
 
+void
+operator_bitwise_not::update_bitmask (irange &r, const irange &lh,
+				      const irange &rh) const
+{
+  update_known_bitmask (r, BIT_NOT_EXPR, lh, rh);
+}
+
 
 bool
 operator_cst::fold_range (irange &r, tree type ATTRIBUTE_UNUSED,