From 9552955e081f3d871765055fd5abad9070cfcf90 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 3 Jun 2022 01:33:01 -0600
Subject: [PATCH] Add an unlikely

---
 src/hb-ot-cmap-table.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-ot-cmap-table.hh b/src/hb-ot-cmap-table.hh
index 9d95f518c..24d548a2a 100644
--- a/src/hb-ot-cmap-table.hh
+++ b/src/hb-ot-cmap-table.hh
@@ -1485,7 +1485,7 @@ struct SubtableUnicodesCache {
   hb_set_t* set_for(const EncodingRecord* record)
   {
     if (!cached_unicodes.has ((intptr_t) record)) {
-      if (!cached_unicodes.set ((intptr_t) record, hb::unique_ptr<hb_set_t> {hb_set_create ()}))
+      if (unlikely (!cached_unicodes.set ((intptr_t) record, hb::unique_ptr<hb_set_t> {hb_set_create ()})))
         return hb_set_get_empty ();
       (base+record->subtable).collect_unicodes (cached_unicodes.get ((intptr_t) record));
     }