We can eliminate the requirement for a zero-extended output,
because the following store will ignore any garbage high bits.
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/arm/translate-a64.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 304fd3d370..1a40e49db7 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -12444,12 +12444,10 @@ static void handle_rev(DisasContext *s, int opcode,
bool u,
read_vec_element(s, tcg_tmp, rn, i, grp_size);
switch (grp_size) {
case MO_16:
- tcg_gen_bswap16_i64(tcg_tmp, tcg_tmp,
- TCG_BSWAP_IZ | TCG_BSWAP_OZ);
+ tcg_gen_bswap16_i64(tcg_tmp, tcg_tmp, TCG_BSWAP_IZ);
break;
case MO_32:
- tcg_gen_bswap32_i64(tcg_tmp, tcg_tmp,
- TCG_BSWAP_IZ | TCG_BSWAP_OZ);
+ tcg_gen_bswap32_i64(tcg_tmp, tcg_tmp, TCG_BSWAP_IZ);
break;
case MO_64:
tcg_gen_bswap64_i64(tcg_tmp, tcg_tmp);
--
2.25.1
