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s390x/tcg: Implement 32/128 bit for VECTOR FP COMPARE (AND SIGNAL) SCALAR

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Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210608092337.12221-17-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2021-06-08 11:23:27 +02:00 committed by Cornelia Huck
parent e384332cb5
commit 1c6b5b47da
3 changed files with 77 additions and 9 deletions
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4
target/s390x/helper.h
View File

@ -250,8 +250,12 @@ DEF_HELPER_6(gvec_vstrc_cc_rt32, void, ptr, cptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfa32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfa64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfa128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_4(gvec_wfc32, void, cptr, cptr, env, i32)
DEF_HELPER_4(gvec_wfk32, void, cptr, cptr, env, i32)
DEF_HELPER_4(gvec_wfc64, void, cptr, cptr, env, i32)
DEF_HELPER_4(gvec_wfk64, void, cptr, cptr, env, i32)
DEF_HELPER_4(gvec_wfc128, void, cptr, cptr, env, i32)
DEF_HELPER_4(gvec_wfk128, void, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfce32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_5(gvec_vfce32_cc, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfce64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)

38
target/s390x/translate_vx.c.inc
View File

@ -2598,19 +2598,41 @@ static DisasJumpType op_wfc(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_LONG || m4) {
switch (fpf) {
case FPF_SHORT:
if (s390_has_feat(S390_FEAT_VECTOR_ENH)) {
fn = gen_helper_gvec_wfk32;
if (s->fields.op2 == 0xcb) {
fn = gen_helper_gvec_wfc32;
}
}
break;
case FPF_LONG:
fn = gen_helper_gvec_wfk64;
if (s->fields.op2 == 0xcb) {
fn = gen_helper_gvec_wfc64;
}
break;
case FPF_EXT:
if (s390_has_feat(S390_FEAT_VECTOR_ENH)) {
fn = gen_helper_gvec_wfk128;
if (s->fields.op2 == 0xcb) {
fn = gen_helper_gvec_wfc128;
}
}
break;
default:
break;
};
if (!fn || m4) {
gen_program_exception(s, PGM_SPECIFICATION);
return DISAS_NORETURN;
}
if (s->fields.op2 == 0xcb) {
gen_gvec_2_ptr(get_field(s, v1), get_field(s, v2),
cpu_env, 0, gen_helper_gvec_wfc64);
} else {
gen_gvec_2_ptr(get_field(s, v1), get_field(s, v2),
cpu_env, 0, gen_helper_gvec_wfk64);
}
gen_gvec_2_ptr(get_field(s, v1), get_field(s, v2), cpu_env, 0, fn);
set_cc_static(s);
return DISAS_NEXT;
}

44
target/s390x/vec_fpu_helper.c
View File

@ -307,6 +307,26 @@ DEF_GVEC_VOP3(vfs, sub)
DEF_GVEC_VOP3(vfd, div)
DEF_GVEC_VOP3(vfm, mul)
static int wfc32(const S390Vector *v1, const S390Vector *v2,
CPUS390XState *env, bool signal, uintptr_t retaddr)
{
/* only the zero-indexed elements are compared */
const float32 a = s390_vec_read_float32(v1, 0);
const float32 b = s390_vec_read_float32(v2, 0);
uint8_t vxc, vec_exc = 0;
int cmp;
if (signal) {
cmp = float32_compare(a, b, &env->fpu_status);
} else {
cmp = float32_compare_quiet(a, b, &env->fpu_status);
}
vxc = check_ieee_exc(env, 0, false, &vec_exc);
handle_ieee_exc(env, vxc, vec_exc, retaddr);
return float_comp_to_cc(env, cmp);
}
static int wfc64(const S390Vector *v1, const S390Vector *v2,
CPUS390XState *env, bool signal, uintptr_t retaddr)
{
@ -327,6 +347,26 @@ static int wfc64(const S390Vector *v1, const S390Vector *v2,
return float_comp_to_cc(env, cmp);
}
static int wfc128(const S390Vector *v1, const S390Vector *v2,
CPUS390XState *env, bool signal, uintptr_t retaddr)
{
/* only the zero-indexed elements are compared */
const float128 a = s390_vec_read_float128(v1);
const float128 b = s390_vec_read_float128(v2);
uint8_t vxc, vec_exc = 0;
int cmp;
if (signal) {
cmp = float128_compare(a, b, &env->fpu_status);
} else {
cmp = float128_compare_quiet(a, b, &env->fpu_status);
}
vxc = check_ieee_exc(env, 0, false, &vec_exc);
handle_ieee_exc(env, vxc, vec_exc, retaddr);
return float_comp_to_cc(env, cmp);
}
#define DEF_GVEC_WFC_B(NAME, SIGNAL, BITS) \
void HELPER(gvec_##NAME##BITS)(const void *v1, const void *v2, \
CPUS390XState *env, uint32_t desc) \
@ -335,7 +375,9 @@ void HELPER(gvec_##NAME##BITS)(const void *v1, const void *v2, \
}
#define DEF_GVEC_WFC(NAME, SIGNAL) \
DEF_GVEC_WFC_B(NAME, SIGNAL, 64)
DEF_GVEC_WFC_B(NAME, SIGNAL, 32) \
DEF_GVEC_WFC_B(NAME, SIGNAL, 64) \
DEF_GVEC_WFC_B(NAME, SIGNAL, 128)
DEF_GVEC_WFC(wfc, false)
DEF_GVEC_WFC(wfk, true)