Combine the right shift with the extension via
the tcg extract operations.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/tcg/translate-a64.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 1225aac665..740620074a 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -10477,8 +10477,11 @@ static void handle_vec_simd_wshli(DisasContext *s, bool is_q, bool is_u,
read_vec_element(s, tcg_rn, rn, is_q ? 1 : 0, MO_64);
for (i = 0; i < elements; i++) {
- tcg_gen_shri_i64(tcg_rd, tcg_rn, i * esize);
- ext_and_shift_reg(tcg_rd, tcg_rd, size | (!is_u << 2), 0);
+ if (is_u) {
+ tcg_gen_extract_i64(tcg_rd, tcg_rn, i * esize, esize);
+ } else {
+ tcg_gen_sextract_i64(tcg_rd, tcg_rn, i * esize, esize);
+ }
tcg_gen_shli_i64(tcg_rd, tcg_rd, shift);
write_vec_element(s, tcg_rd, rd, i, size + 1);
}
--
2.43.0