diff --git a/util/opt/patterns b/util/opt/patterns
index c2df61ad..e5909144 100644
--- a/util/opt/patterns
+++ b/util/opt/patterns
@@ -399,6 +399,10 @@ zer loc defined($1) && $2==0:   zer $1+w
 #endif
 loi loc loc cui $1 < w && $2==$3 && $2==w: loi $1
 loi loc and $1==1 && $3==w && ($2&255)==255:    loi 1
+loc loc cii zne $1<=w && $2==w:	zne $4
+loc loc cii zeq $1<=w && $2==w:	zeq $4
+loc loc cii tne $1<=w && $2==w:	tne
+loc loc cii teq $1<=w && $2==w:	teq
 loi loc and loc loc cii $1==1 && $4==w && $3==w && $2==255: loi $1 loc $4 loc $5 cii
 loi loc loc cii loc and $1==1 && $2==1 && $3==w && $5==255 && $6==w:	loi 1
 loi loc loc cii loc cmi zeq $1==1 && $2==1 && $3==w && $5>=0 && $5<128 && $6==w:	loi 1 loc $5 cmi w zeq $7