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s390x/tcg: Implement VECTOR ELEMENT COMPARE * 

Fairly easy to implement, we can make use of the existing CC helpers
cmps64 and cmpu64 - we siply have to sign extend the elements.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2019-04-11 09:50:42 +02:00
parent b0160ec99a
commit 751a564f79
2 changed files with 24 additions and 0 deletions
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4
target/s390x/insn-data.def
View File

@ -1074,6 +1074,10 @@
F(0xe7f0, VAVGL, VRR_c, V, 0, 0, 0, 0, vavgl, 0, IF_VEC)
/* VECTOR CHECKSUM */
F(0xe766, VCKSM, VRR_c, V, 0, 0, 0, 0, vcksm, 0, IF_VEC)
/* VECTOR ELEMENT COMPARE */
F(0xe7db, VEC, VRR_a, V, 0, 0, 0, 0, vec, cmps64, IF_VEC)
/* VECTOR ELEMENT COMPARE LOGICAL */
F(0xe7d9, VECL, VRR_a, V, 0, 0, 0, 0, vec, cmpu64, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

20
target/s390x/translate_vx.inc.c
View File

@ -1369,3 +1369,23 @@ static DisasJumpType op_vcksm(DisasContext *s, DisasOps *o)
tcg_temp_free_i32(sum);
return DISAS_NEXT;
}
static DisasJumpType op_vec(DisasContext *s, DisasOps *o)
{
uint8_t es = get_field(s->fields, m3);
const uint8_t enr = NUM_VEC_ELEMENTS(es) / 2 - 1;
if (es > ES_64) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}
if (s->fields->op2 == 0xdb) {
es |= MO_SIGN;
}
o->in1 = tcg_temp_new_i64();
o->in2 = tcg_temp_new_i64();
read_vec_element_i64(o->in1, get_field(s->fields, v1), enr, es);
read_vec_element_i64(o->in2, get_field(s->fields, v2), enr, es);
return DISAS_NEXT;
}