From 5346a2fcceb118fce1041646788a20fea6698c34 Mon Sep 17 00:00:00 2001
From: Aldy Hernandez <aldyh@redhat.com>
Date: Tue, 25 Jul 2023 12:35:08 -0400
Subject: [PATCH] [range-ops] Handle bitmasks for ABS_EXPR.
gcc/ChangeLog:
* range-op-mixed.h (class operator_abs): Add update_bitmask.
* range-op.cc (operator_abs::update_bitmask): New.
---
gcc/range-op-mixed.h | 2 ++
gcc/range-op.cc | 6 ++++++
2 files changed, 8 insertions(+)
diff --git a/gcc/range-op-mixed.h b/gcc/range-op-mixed.h
index ead41ed05158..70550c52232a 100644
--- a/gcc/range-op-mixed.h
+++ b/gcc/range-op-mixed.h
@@ -408,6 +408,8 @@ class operator_abs : public range_operator
bool op1_range (frange &r, tree type,
const frange &lhs, const frange &op2,
relation_trio rel = TRIO_VARYING) const final override;
+ void update_bitmask (irange &r, const irange &lh,
+ const irange &rh) const final override;
private:
void wi_fold (irange &r, tree type, const wide_int &lh_lb,
const wide_int &lh_ub, const wide_int &rh_lb,
diff --git a/gcc/range-op.cc b/gcc/range-op.cc
index 13ba973a08da..bfab53caea0d 100644
--- a/gcc/range-op.cc
+++ b/gcc/range-op.cc
@@ -4208,6 +4208,12 @@ operator_abs::op1_range (irange &r, tree type,
return true;
}
+void
+operator_abs::update_bitmask (irange &r, const irange &lh,
+ const irange &rh) const
+{
+ update_known_bitmask (r, ABS_EXPR, lh, rh);
+}
class operator_absu : public range_operator
{
--
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