[Qemu-devel] [PULL 23/33] s390x/tcg: Implement VECTOR REPLICATE

[Cornelia Huck]

From: David Hildenbrand <address@hidden>

Replicate via the special gvec helper.

Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: David Hildenbrand <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
 target/s390x/insn-data.def      |  2 ++
 target/s390x/translate_vx.inc.c | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index 7314ae4704b9..14e010765d22 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1023,6 +1023,8 @@
     F(0xe78c, VPERM,   VRR_e, V,   0, 0, 0, 0, vperm, 0, IF_VEC)
 /* VECTOR PERMUTE DOUBLEWORD IMMEDIATE */
     F(0xe784, VPDI,    VRR_c, V,   0, 0, 0, 0, vpdi, 0, IF_VEC)
+/* VECTOR REPLICATE */
+    F(0xe74d, VREP,    VRI_c, V,   0, 0, 0, 0, vrep, 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 b23955b8481e..21bf2dc58ff9 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -691,3 +691,19 @@ static DisasJumpType op_vpdi(DisasContext *s, DisasOps *o)
     tcg_temp_free_i64(t1);
     return DISAS_NEXT;
 }
+
+static DisasJumpType op_vrep(DisasContext *s, DisasOps *o)
+{
+    const uint8_t enr = get_field(s->fields, i2);
+    const uint8_t es = get_field(s->fields, m4);
+
+    if (es > ES_64 || !valid_vec_element(enr, es)) {
+        gen_program_exception(s, PGM_SPECIFICATION);
+        return DISAS_NORETURN;
+    }
+
+    tcg_gen_gvec_dup_mem(es, vec_full_reg_offset(get_field(s->fields, v1)),
+                         vec_reg_offset(get_field(s->fields, v3), enr, es),
+                         16, 16);
+    return DISAS_NEXT;
+}
-- 
2.17.2