s390x/tcg: Implement VECTOR SHIFT LEFT (BY BYTE)

We can reuse the existing 128-bit shift utility function.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c
index 15353096c0..734c022b36 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -188,6 +188,9 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
 #define gen_gvec_2s(v1, v2, c, gen) \
     tcg_gen_gvec_2s(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
                     16, 16, c, gen)
+#define gen_gvec_2i_ool(v1, v2, c, data, fn) \
+    tcg_gen_gvec_2i_ool(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
+                        c, 16, 16, data, fn)
 #define gen_gvec_3(v1, v2, v3, gen) \
     tcg_gen_gvec_3(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
                    vec_full_reg_offset(v3), 16, 16, gen)
@@ -2040,3 +2043,20 @@ static DisasJumpType op_ves(DisasContext *s, DisasOps *o)
     }
     return DISAS_NEXT;
 }
+
+static DisasJumpType op_vsl(DisasContext *s, DisasOps *o)
+{
+    TCGv_i64 shift = tcg_temp_new_i64();
+
+    read_vec_element_i64(shift, get_field(s->fields, v3), 7, ES_8);
+    if (s->fields->op2 == 0x74) {
+        tcg_gen_andi_i64(shift, shift, 0x7);
+    } else {
+        tcg_gen_andi_i64(shift, shift, 0x78);
+    }
+
+    gen_gvec_2i_ool(get_field(s->fields, v1), get_field(s->fields, v2),
+                    shift, 0, gen_helper_gvec_vsl);
+    tcg_temp_free_i64(shift);
+    return DISAS_NEXT;
+}