target/arm: Optimize MVE VDUP
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
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@ -500,11 +500,15 @@ static bool trans_VDUP(DisasContext *s, arg_VDUP *a)
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return true;
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}
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qd = mve_qreg_ptr(a->qd);
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rt = load_reg(s, a->rt);
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if (mve_no_predication(s)) {
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tcg_gen_gvec_dup_i32(a->size, mve_qreg_offset(a->qd), 16, 16, rt);
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} else {
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qd = mve_qreg_ptr(a->qd);
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tcg_gen_dup_i32(a->size, rt, rt);
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gen_helper_mve_vdup(cpu_env, qd, rt);
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tcg_temp_free_ptr(qd);
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}
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tcg_temp_free_i32(rt);
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mve_update_eci(s);
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return true;
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