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s390x/tcg: Implement VECTOR FP TEST DATA CLASS IMMEDIATE

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We can reuse float64_dcmask().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2019-05-29 22:27:21 +02:00
parent 658a395f6c
commit 83b955f9a8
4 changed files with 62 additions and 0 deletions
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2
target/s390x/helper.h
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@ -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)

2
target/s390x/insn-data.def
View File

@ -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 */

21
target/s390x/translate_vx.inc.c
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@ -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;
}

37
target/s390x/vec_fpu_helper.c
View File

@ -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));
}