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s390x/tcg: Implement VECTOR SIGN EXTEND TO DOUBLEWORD

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

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-27-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2019-03-07 13:15:33 +01:00 committed by Cornelia Huck
parent db23070c76
commit a2338cfb07
2 changed files with 35 additions and 0 deletions
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2
target/s390x/insn-data.def
View File

@ -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 */

33
target/s390x/translate_vx.inc.c
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@ -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;
}