diff --git a/qemu/target/arm/translate-a64.c b/qemu/target/arm/translate-a64.c
index b9b5c744..2f7595eb 100644
--- a/qemu/target/arm/translate-a64.c
+++ b/qemu/target/arm/translate-a64.c
@@ -11621,7 +11621,11 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn)
         /* All 64-bit element operations can be shared with scalar 2misc */
         int pass;
 
-        for (pass = 0; pass < (is_q ? 2 : 1); pass++) {
+        /* Coverity claims (size == 3 && !is_q) has been eliminated
+         * from all paths leading to here.
+         */
+        tcg_debug_assert(is_q);
+        for (pass = 0; pass < 2; pass++) {
             TCGv_i64 tcg_op = tcg_temp_new_i64(tcg_ctx);
             TCGv_i64 tcg_res = tcg_temp_new_i64(tcg_ctx);