[subset/ClassDef] Micro-optimize use_class_zero calc
Probably never matters.
diff --git a/src/hb-ot-layout-common.hh b/src/hb-ot-layout-common.hh
index cf344dc..90b1f36 100644
--- a/src/hb-ot-layout-common.hh
+++ b/src/hb-ot-layout-common.hh
@@ -1595,10 +1595,13 @@
orig_klasses.add (klass);
}
- unsigned glyph_count = glyph_filter
- ? hb_len (hb_iter (glyph_map.keys()) | hb_filter (glyph_filter))
- : glyph_map.get_population ();
- use_class_zero = use_class_zero && glyph_count <= glyph_and_klass.length;
+ if (use_class_zero)
+ {
+ unsigned glyph_count = glyph_filter
+ ? hb_len (hb_iter (glyph_map.keys()) | hb_filter (glyph_filter))
+ : glyph_map.get_population ();
+ use_class_zero = glyph_count <= glyph_and_klass.length;
+ }
if (!ClassDef_remap_and_serialize (c->serializer,
orig_klasses,
use_class_zero,
