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target/arm: Optimize MVE VDUP

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Optimize the MVE VDUP insns by using TCG vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-8-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2021-09-13 10:54:35 +01:00
parent 4b1561c472
commit f8d94803f1
1 changed files with 8 additions and 4 deletions
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6
target/arm/translate-mve.c
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@ -500,11 +500,15 @@ static bool trans_VDUP(DisasContext *s, arg_VDUP *a)
return true; return true;
} }
qd = mve_qreg_ptr(a->qd);
rt = load_reg(s, a->rt); rt = load_reg(s, a->rt);
if (mve_no_predication(s)) {
tcg_gen_gvec_dup_i32(a->size, mve_qreg_offset(a->qd), 16, 16, rt);
} else {
qd = mve_qreg_ptr(a->qd);
tcg_gen_dup_i32(a->size, rt, rt); tcg_gen_dup_i32(a->size, rt, rt);
gen_helper_mve_vdup(cpu_env, qd, rt); gen_helper_mve_vdup(cpu_env, qd, rt);
tcg_temp_free_ptr(qd); tcg_temp_free_ptr(qd);
}
tcg_temp_free_i32(rt); tcg_temp_free_i32(rt);
mve_update_eci(s); mve_update_eci(s);
return true; return true;