Add v64_ssub_u16, v128_ssub_u16 and v256_ssub_u16

Change-Id: I60543913cbd8dc5cad524ab74697227f9e93836e
diff --git a/test/simd_cmp_impl.h b/test/simd_cmp_impl.h
index 77bb5d2..63bdc56 100644
--- a/test/simd_cmp_impl.h
+++ b/test/simd_cmp_impl.h
@@ -278,6 +278,7 @@
                       MAP(v64_ssub_s8),
                       MAP(v64_sub_16),
                       MAP(v64_ssub_s16),
+                      MAP(v64_ssub_u16),
                       MAP(v64_sub_32),
                       MAP(v64_ziplo_8),
                       MAP(v64_ziphi_8),
@@ -449,6 +450,7 @@
                       MAP(v128_ssub_s8),
                       MAP(v128_sub_16),
                       MAP(v128_ssub_s16),
+                      MAP(v128_ssub_u16),
                       MAP(v128_sub_32),
                       MAP(v128_ziplo_8),
                       MAP(v128_ziphi_8),