Commit 83b955f9 authored by David Hildenbrand's avatar David Hildenbrand
Browse files

s390x/tcg: Implement VECTOR FP TEST DATA CLASS IMMEDIATE 



We can reuse float64_dcmask().

Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: default avatarDavid Hildenbrand <david@redhat.com>
parent 658a395f

target/s390x/helper.h

+2 −0
Original line number Diff line number Diff line
@@ -292,6 +292,8 @@ DEF_HELPER_FLAGS_4(gvec_vfsq64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) 
DEF_HELPER_FLAGS_4(gvec_vfsq64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)

DEF_HELPER_FLAGS_5(gvec_vfs64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)

DEF_HELPER_FLAGS_5(gvec_vfs64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)

DEF_HELPER_4(gvec_vftci64, void, ptr, cptr, env, i32)

DEF_HELPER_4(gvec_vftci64s, void, ptr, cptr, env, i32)



#ifndef CONFIG_USER_ONLY

DEF_HELPER_3(servc, i32, env, i64, i64)

target/s390x/insn-data.def

+2 −0
Original line number Diff line number Diff line
@@ -1246,6 +1246,8 @@ 
    F(0xe7ce, VFSQ,    VRR_a, V,   0, 0, 0, 0, vfsq, 0, IF_VEC)

/* VECTOR FP SUBTRACT */

    F(0xe7e2, VFS,     VRR_c, V,   0, 0, 0, 0, vfa, 0, IF_VEC)

/* VECTOR FP TEST DATA CLASS IMMEDIATE */

    F(0xe74a, VFTCI,   VRI_e, V,   0, 0, 0, 0, vftci, 0, IF_VEC)



#ifndef CONFIG_USER_ONLY

/* COMPARE AND SWAP AND PURGE */

target/s390x/translate_vx.inc.c

+21 −0
Original line number Diff line number Diff line
@@ -2801,3 +2801,24 @@ static DisasJumpType op_vfsq(DisasContext *s, DisasOps *o) 
                   0, fn);

    return DISAS_NEXT;

}



static DisasJumpType op_vftci(DisasContext *s, DisasOps *o)

{

    const uint16_t i3 = get_field(s->fields, i3);

    const uint8_t fpf = get_field(s->fields, m4);

    const uint8_t m5 = get_field(s->fields, m5);

    gen_helper_gvec_2_ptr *fn = gen_helper_gvec_vftci64;



    if (fpf != FPF_LONG || extract32(m5, 0, 3)) {

        gen_program_exception(s, PGM_SPECIFICATION);

        return DISAS_NORETURN;

    }



    if (extract32(m5, 3, 1)) {

        fn = gen_helper_gvec_vftci64s;

    }

    gen_gvec_2_ptr(get_field(s->fields, v1), get_field(s->fields, v2), cpu_env,

                   i3, fn);

    set_cc_static(s);

    return DISAS_NEXT;

}

target/s390x/vec_fpu_helper.c

+37 −0
Original line number Diff line number Diff line
@@ -586,3 +586,40 @@ void HELPER(gvec_vfs64s)(void *v1, const void *v2, const void *v3, 
{

    vop64_3(v1, v2, v3, env, true, vfs64, GETPC());

}



static int vftci64(S390Vector *v1, const S390Vector *v2, CPUS390XState *env,

                   bool s, uint16_t i3)

{

    int i, match = 0;



    for (i = 0; i < 2; i++) {

        float64 a = s390_vec_read_element64(v2, i);



        if (float64_dcmask(env, a) & i3) {

            match++;

            s390_vec_write_element64(v1, i, -1ull);

        } else {

            s390_vec_write_element64(v1, i, 0);

        }

        if (s) {

            break;

        }

    }



    if (match) {

        return s || match == 2 ? 0 : 1;

    }

    return 3;

}



void HELPER(gvec_vftci64)(void *v1, const void *v2, CPUS390XState *env,

                          uint32_t desc)

{

    env->cc_op = vftci64(v1, v2, env, false, simd_data(desc));

}



void HELPER(gvec_vftci64s)(void *v1, const void *v2, CPUS390XState *env,

                           uint32_t desc)

{

    env->cc_op = vftci64(v1, v2, env, true, simd_data(desc));

}