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| author | Richard Henderson <richard.henderson@linaro.org> | 2024-09-11 19:41:03 -0700 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-09-19 12:58:57 +0100 |
| commit | 102f062e6e02c8db58d09262ee07d266b57e1078 (patch) | |
| tree | ec8a5796ec9ed1ff46616a78a6c592bff846f16c | |
| parent | 583d69a746c9a7cc78b5d82ef6ed1e326e2471db (diff) | |
| download | qemu-102f062e6e02c8db58d09262ee07d266b57e1078.zip qemu-102f062e6e02c8db58d09262ee07d266b57e1078.tar.gz qemu-102f062e6e02c8db58d09262ee07d266b57e1078.tar.bz2 | |
target/arm: Use {, s}extract in handle_vec_simd_wshli
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>
Message-id: 20240912024114.1097832-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | target/arm/tcg/translate-a64.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 1225aac..7406200 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); } |