Commit a2338cfb authored by David Hildenbrand's avatar David Hildenbrand Committed by Cornelia Huck
Browse files

s390x/tcg: Implement VECTOR SIGN EXTEND TO DOUBLEWORD 



Load both elements signed and store them into the two 64 bit elements.

Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-27-david@redhat.com>
Signed-off-by: default avatarCornelia Huck <cohuck@redhat.com>
parent db23070c

target/s390x/insn-data.def

+2 −0
Original line number Diff line number Diff line
@@ -1032,6 +1032,8 @@ 
    E(0xe71a, VSCEG,   VRV,   V,   la2, 0, 0, 0, vsce, 0, ES_64, IF_VEC)

/* VECTOR SELECT */

    F(0xe78d, VSEL,    VRR_e, V,   0, 0, 0, 0, vsel, 0, IF_VEC)

/* VECTOR SIGN EXTEND TO DOUBLEWORD */

    F(0xe75f, VSEG,    VRR_a, V,   0, 0, 0, 0, vseg, 0, IF_VEC)



#ifndef CONFIG_USER_ONLY

/* COMPARE AND SWAP AND PURGE */

target/s390x/translate_vx.inc.c

+33 −0
Original line number Diff line number Diff line
@@ -784,3 +784,36 @@ static DisasJumpType op_vsel(DisasContext *s, DisasOps *o) 
               get_field(s->fields, v3), get_field(s->fields, v4), &gvec_op);

    return DISAS_NEXT;

}



static DisasJumpType op_vseg(DisasContext *s, DisasOps *o)

{

    const uint8_t es = get_field(s->fields, m3);

    int idx1, idx2;

    TCGv_i64 tmp;



    switch (es) {

    case ES_8:

        idx1 = 7;

        idx2 = 15;

        break;

    case ES_16:

        idx1 = 3;

        idx2 = 7;

        break;

    case ES_32:

        idx1 = 1;

        idx2 = 3;

        break;

    default:

        gen_program_exception(s, PGM_SPECIFICATION);

        return DISAS_NORETURN;

    }



    tmp = tcg_temp_new_i64();

    read_vec_element_i64(tmp, get_field(s->fields, v2), idx1, es | MO_SIGN);

    write_vec_element_i64(tmp, get_field(s->fields, v1), 0, ES_64);

    read_vec_element_i64(tmp, get_field(s->fields, v2), idx2, es | MO_SIGN);

    write_vec_element_i64(tmp, get_field(s->fields, v1), 1, ES_64);

    tcg_temp_free_i64(tmp);

    return DISAS_NEXT;

}