Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Signed-off-by: David Hildenbrand <da...@redhat.com>
---
target/s390x/helper.h | 4 +++
target/s390x/insn-data.def | 4 +++
target/s390x/translate_vx.inc.c | 23 ++++++++++++++++
target/s390x/vec_fpu_helper.c | 48 +++++++++++++++++++++++++++++++++
4 files changed, 79 insertions(+)
diff --git a/target/s390x/helper.h b/target/s390x/helper.h
index 22e02a0178..bcaabb91a5 100644
--- a/target/s390x/helper.h
+++ b/target/s390x/helper.h
@@ -284,6 +284,10 @@ DEF_HELPER_FLAGS_4(gvec_vflr64, TCG_CALL_NO_WG, void, ptr,
cptr, env, i32)
DEF_HELPER_FLAGS_4(gvec_vflr64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfm64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32)
DEF_HELPER_FLAGS_5(gvec_vfm64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env,
i32)
+DEF_HELPER_FLAGS_6(gvec_vfma64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr,
env, i32)
+DEF_HELPER_FLAGS_6(gvec_vfma64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr,
env, i32)
+DEF_HELPER_FLAGS_6(gvec_vfms64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr,
env, i32)
+DEF_HELPER_FLAGS_6(gvec_vfms64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr,
env, i32)
#ifndef CONFIG_USER_ONLY
DEF_HELPER_3(servc, i32, env, i64, i64)
diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index e56059ac34..e86ade9e44 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1236,6 +1236,10 @@
F(0xe7c5, VFLR, VRR_a, V, 0, 0, 0, 0, vcdg, 0, IF_VEC)
/* VECTOR FP MULTIPLY */
F(0xe7e7, VFM, VRR_c, V, 0, 0, 0, 0, vfa, 0, IF_VEC)
+/* VECTOR FP MULTIPLY AND ADD */
+ F(0xe78f, VFMA, VRR_e, V, 0, 0, 0, 0, vfma, 0, IF_VEC)
+/* VECTOR FP MULTIPLY AND SUBTRACT */
+ F(0xe78e, VFMS, VRR_e, V, 0, 0, 0, 0, vfma, 0, IF_VEC)
#ifndef CONFIG_USER_ONLY
/* COMPARE AND SWAP AND PURGE */
diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c
index ae31a327cf..b624c7a8aa 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -2704,3 +2704,26 @@ static DisasJumpType op_vfll(DisasContext *s, DisasOps
*o)
0, fn);
return DISAS_NEXT;
}
+
+static DisasJumpType op_vfma(DisasContext *s, DisasOps *o)
+{
+ const uint8_t m5 = get_field(s->fields, m5);
+ const uint8_t fpf = get_field(s->fields, m6);
+ const bool se = extract32(m5, 3, 1);
+ gen_helper_gvec_4_ptr *fn;
+
+ if (fpf != FPF_LONG || extract32(m5, 0, 3)) {
+ gen_program_exception(s, PGM_SPECIFICATION);
+ return DISAS_NORETURN;
+ }
+
+ if (s->fields->op2 == 0x8f) {
+ fn = se ? gen_helper_gvec_vfma64s : gen_helper_gvec_vfma64;
+ } else {
+ fn = se ? gen_helper_gvec_vfms64s : gen_helper_gvec_vfms64;
+ }
+ gen_gvec_4_ptr(get_field(s->fields, v1), get_field(s->fields, v2),
+ get_field(s->fields, v3), get_field(s->fields, v4), cpu_env,
+ 0, fn);
+ return DISAS_NEXT;
+}
diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c
index 57b7fe4aff..7993a6fafa 100644
--- a/target/s390x/vec_fpu_helper.c
+++ b/target/s390x/vec_fpu_helper.c
@@ -504,3 +504,51 @@ void HELPER(gvec_vfm64s)(void *v1, const void *v2, const
void *v3,
{
vop64_3(v1, v2, v3, env, true, vfm64, GETPC());
}
+
+static void vfma64(S390Vector *v1, const S390Vector *v2, const S390Vector *v3,
+ const S390Vector *v4, CPUS390XState *env, bool s, int flags,
+ uintptr_t retaddr)
+{
+ uint8_t vxc, vec_exc = 0;
+ S390Vector tmp = {};
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ const uint64_t a = s390_vec_read_element64(v2, i);
+ const uint64_t b = s390_vec_read_element64(v3, i);
+ const uint64_t c = s390_vec_read_element64(v4, i);
+ uint64_t ret = float64_muladd(a, b, c, flags, &env->fpu_status);
+
+ s390_vec_write_element64(&tmp, i, ret);
+ vxc = check_ieee_exc(env, i, false, &vec_exc);
+ if (s || vxc) {
+ break;
+ }
+ }
+ handle_ieee_exc(env, vxc, vec_exc, retaddr);
+ *v1 = tmp;
+}
+
+void HELPER(gvec_vfma64)(void *v1, const void *v2, const void *v3,
+ const void *v4, CPUS390XState *env, uint32_t desc)
+{
+ vfma64(v1, v2, v3, v4, env, false, 0, GETPC());
+}
+
+void HELPER(gvec_vfma64s)(void *v1, const void *v2, const void *v3,
+ const void *v4, CPUS390XState *env, uint32_t desc)
+{
+ vfma64(v1, v2, v3, v4, env, true, 0, GETPC());
+}
+
+void HELPER(gvec_vfms64)(void *v1, const void *v2, const void *v3,
+ const void *v4, CPUS390XState *env, uint32_t desc)
+{
+ vfma64(v1, v2, v3, v4, env, false, float_muladd_negate_c, GETPC());
+}
+
+void HELPER(gvec_vfms64s)(void *v1, const void *v2, const void *v3,
+ const void *v4, CPUS390XState *env, uint32_t desc)
+{
+ vfma64(v1, v2, v3, v4, env, true, float_muladd_negate_c, GETPC());
+}
--
2.21.0
