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s390x/tcg: Use tcg_gen_gvec_bitsel for VECTOR SELECT 

This replaces the target-specific implementations for VSEL.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
Richard Henderson 2019-06-03 11:57:35 -05:00 committed by David Hildenbrand
parent 08ef92d556
commit 37c70c43dc
1 changed files with 6 additions and 32 deletions
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38
target/s390x/translate_vx.inc.c
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@ -245,6 +245,9 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
#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)
#define gen_gvec_fn_4(fn, es, v1, v2, v3, v4) \
tcg_gen_gvec_##fn(es, vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
vec_full_reg_offset(v3), vec_full_reg_offset(v4), 16, 16)
/*
* Helper to carry out a 128 bit vector computation using 2 i64 values per
@ -915,40 +918,11 @@ static DisasJumpType op_vsce(DisasContext *s, DisasOps *o)
return DISAS_NEXT;
}
static void gen_sel_i64(TCGv_i64 d, TCGv_i64 a, TCGv_i64 b, TCGv_i64 c)
{
TCGv_i64 t = tcg_temp_new_i64();
/* bit in c not set -> copy bit from b */
tcg_gen_andc_i64(t, b, c);
/* bit in c set -> copy bit from a */
tcg_gen_and_i64(d, a, c);
/* merge the results */
tcg_gen_or_i64(d, d, t);
tcg_temp_free_i64(t);
}
static void gen_sel_vec(unsigned vece, TCGv_vec d, TCGv_vec a, TCGv_vec b,
TCGv_vec c)
{
TCGv_vec t = tcg_temp_new_vec_matching(d);
tcg_gen_andc_vec(vece, t, b, c);
tcg_gen_and_vec(vece, d, a, c);
tcg_gen_or_vec(vece, d, d, t);
tcg_temp_free_vec(t);
}
static DisasJumpType op_vsel(DisasContext *s, DisasOps *o)
{
static const GVecGen4 gvec_op = {
.fni8 = gen_sel_i64,
.fniv = gen_sel_vec,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
gen_gvec_4(get_field(s->fields, v1), get_field(s->fields, v2),
get_field(s->fields, v3), get_field(s->fields, v4), &gvec_op);
gen_gvec_fn_4(bitsel, ES_8, get_field(s->fields, v1),
get_field(s->fields, v4), get_field(s->fields, v2),
get_field(s->fields, v3));
return DISAS_NEXT;
}