diff --git a/target/arm/tcg/gengvec.c b/target/arm/tcg/gengvec.c
index e64ca02e0c..2451d23823 100644
--- a/target/arm/tcg/gengvec.c
+++ b/target/arm/tcg/gengvec.c
@@ -944,9 +944,7 @@ void gen_cmtst_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b)
 
 static void gen_cmtst_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b)
 {
-    tcg_gen_and_vec(vece, d, a, b);
-    tcg_gen_dupi_vec(vece, a, 0);
-    tcg_gen_cmp_vec(TCG_COND_NE, vece, d, d, a);
+    tcg_gen_cmp_vec(TCG_COND_TSTNE, vece, d, a, b);
 }
 
 void gen_gvec_cmtst(unsigned vece, uint32_t rd_ofs, uint32_t rn_ofs,