Commit dea33fc3 authored by David Hildenbrand's avatar David Hildenbrand
Browse files

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



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

Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
parent 5f164905

target/s390x/helper.h

+1 −0
Original line number Diff line number Diff line
@@ -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)

target/s390x/insn-data.def

+4 −0
Original line number Diff line number Diff line
@@ -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 */

target/s390x/translate_vx.inc.c

+20 −0
Original line number Diff line number Diff line
@@ -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;

}

target/s390x/vec_int_helper.c

+6 −0
Original line number Diff line number Diff line
@@ -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);

}