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s390x/tcg: Implement VECTOR LOAD COMPLEMENT 

We can reuse an existing gvec helper for negating the values.

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 10:41:48 +02:00
parent 697a45d695
commit 53e0ca22fd
2 changed files with 18 additions and 0 deletions
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2
target/s390x/insn-data.def
View File

@ -1094,6 +1094,8 @@
F(0xe7b4, VGFM, VRR_c, V, 0, 0, 0, 0, vgfm, 0, IF_VEC)
/* VECTOR GALOIS FIELD MULTIPLY SUM AND ACCUMULATE */
F(0xe7bc, VGFMA, VRR_d, V, 0, 0, 0, 0, vgfma, 0, IF_VEC)
/* VECTOR LOAD COMPLEMENT */
F(0xe7de, VLC, VRR_a, V, 0, 0, 0, 0, vlc, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

16
target/s390x/translate_vx.inc.c
View File

@ -209,6 +209,9 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
16)
#define gen_gvec_dup64i(v1, c) \
tcg_gen_gvec_dup64i(vec_full_reg_offset(v1), 16, 16, c)
#define gen_gvec_fn_2(fn, es, v1, v2) \
tcg_gen_gvec_##fn(es, vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
16, 16)
#define gen_gvec_fn_3(fn, es, v1, v2, v3) \
tcg_gen_gvec_##fn(es, vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
vec_full_reg_offset(v3), 16, 16)
@ -1521,3 +1524,16 @@ static DisasJumpType op_vgfma(DisasContext *s, DisasOps *o)
get_field(s->fields, v3), get_field(s->fields, v4), &g[es]);
return DISAS_NEXT;
}
static DisasJumpType op_vlc(DisasContext *s, DisasOps *o)
{
const uint8_t es = get_field(s->fields, m3);
if (es > ES_64) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}
gen_gvec_fn_2(neg, es, get_field(s->fields, v1), get_field(s->fields, v2));
return DISAS_NEXT;
}