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s390x/tcg: Implement 64 bit for VECTOR FP LOAD LENGTHENED

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64 bit -> 128 bit, there is only a single final element.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210608092337.12221-18-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2021-06-08 11:23:28 +02:00 committed by Cornelia Huck
parent 1c6b5b47da
commit 2e96005ed8
3 changed files with 30 additions and 3 deletions
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1
target/s390x/helper.h
View File

@ -285,6 +285,7 @@ DEF_HELPER_FLAGS_4(gvec_vfi32, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vfi64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vfi128, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vfll32, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vfll64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vflr64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfm32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfm64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)

19
target/s390x/translate_vx.c.inc
View File

@ -2781,14 +2781,27 @@ static DisasJumpType op_vfll(DisasContext *s, DisasOps *o)
{
const uint8_t fpf = get_field(s, m3);
const uint8_t m4 = get_field(s, m4);
gen_helper_gvec_2_ptr *fn = NULL;
if (fpf != FPF_SHORT || extract32(m4, 0, 3)) {
switch (fpf) {
case FPF_SHORT:
fn = gen_helper_gvec_vfll32;
break;
case FPF_LONG:
if (s390_has_feat(S390_FEAT_VECTOR_ENH)) {
fn = gen_helper_gvec_vfll64;
}
break;
default:
break;
}
if (!fn || extract32(m4, 0, 3)) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}
gen_gvec_2_ptr(get_field(s, v1), get_field(s, v2), cpu_env,
m4, gen_helper_gvec_vfll32);
gen_gvec_2_ptr(get_field(s, v1), get_field(s, v2), cpu_env, m4, fn);
return DISAS_NEXT;
}

13
target/s390x/vec_fpu_helper.c
View File

@ -522,6 +522,19 @@ void HELPER(gvec_vfll32)(void *v1, const void *v2, CPUS390XState *env,
*(S390Vector *)v1 = tmp;
}
void HELPER(gvec_vfll64)(void *v1, const void *v2, CPUS390XState *env,
uint32_t desc)
{
/* load from even element */
const float128 ret = float64_to_float128(s390_vec_read_float64(v2, 0),
&env->fpu_status);
uint8_t vxc, vec_exc = 0;
vxc = check_ieee_exc(env, 0, false, &vec_exc);
handle_ieee_exc(env, vxc, vec_exc, GETPC());
s390_vec_write_float128(v1, ret);
}
void HELPER(gvec_vflr64)(void *v1, const void *v2, CPUS390XState *env,
uint32_t desc)
{