s390x/tcg: Implement VECTOR LOAD AND REPLICATE

We can use tcg_gen_gvec_dup_i64() to carry out the duplication.
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NDavid Hildenbrand <david@redhat.com>
Message-Id: <20190307121539.12842-9-david@redhat.com>
Signed-off-by: NCornelia Huck <cohuck@redhat.com>

target/s390x/insn-data.def

@@ -984,6 +984,8 @@
 /* VECTOR LOAD */
     F(0xe706, VL,      VRX,   V,   la2, 0, 0, 0, vl, 0, IF_VEC)
     F(0xe756, VLR,     VRR_a, V,   0, 0, 0, 0, vlr, 0, IF_VEC)
+/* VECTOR LOAD AND REPLICATE */
+    F(0xe705, VLREP,   VRX,   V,   la2, 0, 0, 0, vlrep, 0, IF_VEC)
 
 #ifndef CONFIG_USER_ONLY
 /* COMPARE AND SWAP AND PURGE */

target/s390x/translate_vx.inc.c

@@ -113,6 +113,8 @@ static void write_vec_element_i64(TCGv_i64 src, int reg, uint8_t enr,
     }
 }
 
+#define gen_gvec_dup_i64(es, v1, c) \
+    tcg_gen_gvec_dup_i64(es, vec_full_reg_offset(v1), 16, 16, c)
 #define gen_gvec_mov(v1, v2) \
     tcg_gen_gvec_mov(0, vec_full_reg_offset(v1), vec_full_reg_offset(v2), 16, \
                      16)
@@ -243,3 +245,20 @@ static DisasJumpType op_vlr(DisasContext *s, DisasOps *o)
     gen_gvec_mov(get_field(s->fields, v1), get_field(s->fields, v2));
     return DISAS_NEXT;
 }
+
+static DisasJumpType op_vlrep(DisasContext *s, DisasOps *o)
+{
+    const uint8_t es = get_field(s->fields, m3);
+    TCGv_i64 tmp;
+
+    if (es > ES_64) {
+        gen_program_exception(s, PGM_SPECIFICATION);
+        return DISAS_NORETURN;
+    }
+
+    tmp = tcg_temp_new_i64();
+    tcg_gen_qemu_ld_i64(tmp, o->addr1, get_mem_index(s), MO_TE | es);
+    gen_gvec_dup_i64(es, get_field(s->fields, v1), tmp);
+    tcg_temp_free_i64(tmp);
+    return DISAS_NEXT;
+}