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s390x/tcg: Implement VECTOR SHIFT LEFT (BY BYTE) 

We can reuse the existing 128-bit shift utility function.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2019-04-08 22:50:06 +02:00
parent 5f164905b2
commit dea33fc31b
4 changed files with 31 additions and 0 deletions
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1
target/s390x/helper.h
View File

@ -204,6 +204,7 @@ DEF_HELPER_FLAGS_4(gvec_verll8, TCG_CALL_NO_RWG, void, ptr, cptr, i64, i32)
DEF_HELPER_FLAGS_4(gvec_verll16, TCG_CALL_NO_RWG, void, ptr, cptr, i64, i32)
DEF_HELPER_FLAGS_4(gvec_verim8, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32)
DEF_HELPER_FLAGS_4(gvec_verim16, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32)
DEF_HELPER_FLAGS_4(gvec_vsl, TCG_CALL_NO_RWG, void, ptr, cptr, i64, i32)
#ifndef CONFIG_USER_ONLY
DEF_HELPER_3(servc, i32, env, i64, i64)

4
target/s390x/insn-data.def
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@ -1160,6 +1160,10 @@
/* VECTOR ELEMENT SHIFT RIGHT LOGICAL */
F(0xe778, VESRLV, VRR_c, V, 0, 0, 0, 0, vesv, 0, IF_VEC)
F(0xe738, VESRL, VRS_a, V, la2, 0, 0, 0, ves, 0, IF_VEC)
/* VECTOR SHIFT LEFT */
F(0xe774, VSL, VRR_c, V, 0, 0, 0, 0, vsl, 0, IF_VEC)
/* VECTOR SHIFT LEFT BY BYTE */
F(0xe775, VSLB, VRR_c, V, 0, 0, 0, 0, vsl, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */

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

@ -188,6 +188,9 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
#define gen_gvec_2s(v1, v2, c, gen) \
tcg_gen_gvec_2s(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
16, 16, c, gen)
#define gen_gvec_2i_ool(v1, v2, c, data, fn) \
tcg_gen_gvec_2i_ool(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
c, 16, 16, data, fn)
#define gen_gvec_3(v1, v2, v3, gen) \
tcg_gen_gvec_3(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
vec_full_reg_offset(v3), 16, 16, gen)
@ -2040,3 +2043,20 @@ static DisasJumpType op_ves(DisasContext *s, DisasOps *o)
}
return DISAS_NEXT;
}
static DisasJumpType op_vsl(DisasContext *s, DisasOps *o)
{
TCGv_i64 shift = tcg_temp_new_i64();
read_vec_element_i64(shift, get_field(s->fields, v3), 7, ES_8);
if (s->fields->op2 == 0x74) {
tcg_gen_andi_i64(shift, shift, 0x7);
} else {
tcg_gen_andi_i64(shift, shift, 0x78);
}
gen_gvec_2i_ool(get_field(s->fields, v1), get_field(s->fields, v2),
shift, 0, gen_helper_gvec_vsl);
tcg_temp_free_i64(shift);
return DISAS_NEXT;
}

6
target/s390x/vec_int_helper.c
View File

@ -529,3 +529,9 @@ void HELPER(gvec_verim##BITS)(void *v1, const void *v2, const void *v3, \
}
DEF_VERIM(8)
DEF_VERIM(16)
void HELPER(gvec_vsl)(void *v1, const void *v2, uint64_t count,
uint32_t desc)
{
s390_vec_shl(v1, v2, count);
}