From 749dc1eee0f7412b5d3893a33fead4420a58c084 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 4 Feb 2025 22:53:17 +0000
Subject: [PATCH] [bit-set] Fix may_intersect() logic

---
 src/hb-bit-set.hh | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/hb-bit-set.hh b/src/hb-bit-set.hh
index c303e2bef..80000149f 100644
--- a/src/hb-bit-set.hh
+++ b/src/hb-bit-set.hh
@@ -366,11 +366,14 @@ struct hb_bit_set_t
     unsigned int a = 0, b = 0;
     for (; a < na && b < nb; )
     {
-      if (page_map.arrayZ[a].major == other.page_map.arrayZ[b].major &&
-	  page_at (a).may_intersect (other.page_at (b)))
-	return true;
-
-      if (page_map.arrayZ[a].major < other.page_map.arrayZ[b].major)
+      if (page_map.arrayZ[a].major == other.page_map.arrayZ[b].major)
+      {
+	if (likely (page_at (a).may_intersect (other.page_at (b))))
+	  return true;
+	a++;
+	b++;
+      }
+      else if (page_map.arrayZ[a].major < other.page_map.arrayZ[b].major)
 	a++;
       else
 	b++;