s390x/tcg: Implement VECTOR TEST UNDER MASK

Let's return the cc value directly via cpu_env. Unfortunately there
isn't a simple way to calculate the value lazily - one would have to
calculate and store e.g. the population count of the mask and the
result so it can be evaluated in a cc helper.

But as VTM only sets the cc, we can assume the value will be needed soon
either way.

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

1 files changed, 11 insertions, 0 deletions

diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.inc.c
index 52ab8562e6..7e0bfcb190 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -191,6 +191,9 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
 #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_2_ptr(v1, v2, ptr, data, fn) \
+    tcg_gen_gvec_2_ptr(vec_full_reg_offset(v1), vec_full_reg_offset(v2), \
+                       ptr, 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)
@@ -2342,3 +2345,11 @@ static DisasJumpType op_vsum(DisasContext *s, DisasOps *o)
     tcg_temp_free_i32(tmp);
     return DISAS_NEXT;
 }
+
+static DisasJumpType op_vtm(DisasContext *s, DisasOps *o)
+{
+    gen_gvec_2_ptr(get_field(s->fields, v1), get_field(s->fields, v2),
+                   cpu_env, 0, gen_helper_gvec_vtm);
+    set_cc_static(s);
+    return DISAS_NEXT;
+}