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target/arm: Implement SVE2 Integer Multiply - Unpredicated

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For MUL, we can rely on generic support.  For SMULH and UMULH,
create some trivial helpers.  For PMUL, back in a21bb78e58,
we organized helper_gvec_pmul_b in preparation for this use.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210525010358.152808-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2021-05-24 18:02:28 -07:00 • committed by Peter Maydell
parent 2dc10fa2f9
commit 5dad1ba52f
4 changed files with 166 additions and 0 deletions
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50
target/arm/translate-sve.c
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@ -5795,3 +5795,53 @@ static bool trans_MOVPRFX_z(DisasContext *s, arg_rpr_esz *a)
{
return do_movz_zpz(s, a->rd, a->rn, a->pg, a->esz, false);
}
/*
* SVE2 Integer Multiply - Unpredicated
*/
static bool trans_MUL_zzz(DisasContext *s, arg_rrr_esz *a)
{
if (!dc_isar_feature(aa64_sve2, s)) {
return false;
}
if (sve_access_check(s)) {
gen_gvec_fn_zzz(s, tcg_gen_gvec_mul, a->esz, a->rd, a->rn, a->rm);
}
return true;
}
static bool do_sve2_zzz_ool(DisasContext *s, arg_rrr_esz *a,
gen_helper_gvec_3 *fn)
{
if (fn == NULL || !dc_isar_feature(aa64_sve2, s)) {
return false;
}
if (sve_access_check(s)) {
gen_gvec_ool_zzz(s, fn, a->rd, a->rn, a->rm, 0);
}
return true;
}
static bool trans_SMULH_zzz(DisasContext *s, arg_rrr_esz *a)
{
static gen_helper_gvec_3 * const fns[4] = {
gen_helper_gvec_smulh_b, gen_helper_gvec_smulh_h,
gen_helper_gvec_smulh_s, gen_helper_gvec_smulh_d,
};
return do_sve2_zzz_ool(s, a, fns[a->esz]);
}
static bool trans_UMULH_zzz(DisasContext *s, arg_rrr_esz *a)
{
static gen_helper_gvec_3 * const fns[4] = {
gen_helper_gvec_umulh_b, gen_helper_gvec_umulh_h,
gen_helper_gvec_umulh_s, gen_helper_gvec_umulh_d,
};
return do_sve2_zzz_ool(s, a, fns[a->esz]);
}
static bool trans_PMUL_zzz(DisasContext *s, arg_rrr_esz *a)
{
return do_sve2_zzz_ool(s, a, gen_helper_gvec_pmul_b);
}