https://gcc.gnu.org/g:0e57e1c072d5e3e5af15e7de182111be5c2cf5e6

commit r17-1669-g0e57e1c072d5e3e5af15e7de182111be5c2cf5e6
Author: Andrew MacLeod <[email protected]>
Date:   Thu Jun 18 10:58:57 2026 -0400

    invariant_p should return true or false instead of a tree
    
    left from a previous API version, the boolean result should be true
    or false, not a TREE which is then converted to a boolean.
    
            * value-range.h (prange::pt_invariant_p): Return true or false.
            (prange::pt_invariant_away_p): Likewise.

Diff:
---
 gcc/value-range.h | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/gcc/value-range.h b/gcc/value-range.h
index abed19d9209e..d5588faefb41 100644
--- a/gcc/value-range.h
+++ b/gcc/value-range.h
@@ -461,12 +461,16 @@ public:
   tree pt_invariant () const;
   tree pt_invariant_away () const;
 
-  // Return true if present and identical for THIS and R.
+  // Return true if THIS and R both point to the same object.
   bool pt_invariant_p (const prange &r) const;
+  // Return true if THIS and R both point away from the same object.
   bool pt_invariant_away_p (const prange &r) const;
+  // Return true if THIS and R refer to the same object, and one is inverted
+  // from the other,  Ie, both to and away.
+  bool pt_inverted_p (const prange &r) const;
 
+  // Invert THIS if it points either to or away from an object.
   bool pt_invert ();
-  bool pt_inverted_p (const prange &r) const;
 
   // pt_base () - object/allocation the pointer refers into.
   tree pt_base () const;
@@ -1555,8 +1559,8 @@ prange::pt_invariant_p (const prange &r) const
 {
   if (m_pt && m_points_to_p && vrp_operand_equal_p (r.m_pt, m_pt)
       && m_points_to_p == r.m_points_to_p)
-    return m_pt;
-  return NULL_TREE;
+    return true;
+  return false;
 }
 
 inline bool
@@ -1564,8 +1568,8 @@ prange::pt_invariant_away_p (const prange &r) const
 {
   if (m_pt && !m_points_to_p && vrp_operand_equal_p (r.m_pt, m_pt)
       && m_points_to_p == r.m_points_to_p)
-    return m_pt;
-  return NULL_TREE;
+    return true;
+  return false;
 }

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