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[PULL,SUBSYSTEM,s390x,17/40] s390x/tcg: Implement VECTOR (MAXIMUM|MINIMUM) (LOGICAL)

Message ID 20190517102145.21812-18-david@redhat.com (mailing list archive)
State New, archived
Headers show
Series [PULL,SUBSYSTEM,s390x,01/40] s390x/tcg: Implement VECTOR ADD | expand

Commit Message

David Hildenbrand May 17, 2019, 10:21 a.m. UTC 
Luckily, we already have gvec helpers for all four cases.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
---
 target/s390x/insn-data.def      |  8 ++++++++
 target/s390x/translate_vx.inc.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
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Patch

diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def
index fc8886ff42..b22d9f0f6a 100644
--- a/target/s390x/insn-data.def
+++ b/target/s390x/insn-data.def
@@ -1098,6 +1098,14 @@ 
     F(0xe7de, VLC,     VRR_a, V,   0, 0, 0, 0, vlc, 0, IF_VEC)
 /* VECTOR LOAD POSITIVE */
     F(0xe7df, VLP,     VRR_a, V,   0, 0, 0, 0, vlp, 0, IF_VEC)
+/* VECTOR MAXIMUM */
+    F(0xe7ff, VMX,     VRR_c, V,   0, 0, 0, 0, vmx, 0, IF_VEC)
+/* VECTOR MAXIMUM LOGICAL */
+    F(0xe7fd, VMXL,    VRR_c, V,   0, 0, 0, 0, vmx, 0, IF_VEC)
+/* VECTOR MINIMUM */
+    F(0xe7fe, VMN,     VRR_c, V,   0, 0, 0, 0, vmx, 0, IF_VEC)
+/* VECTOR MINIMUM LOGICAL */
+    F(0xe7fc, VMNL,    VRR_c, V,   0, 0, 0, 0, vmx, 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 566a7df6df..bb27cad4d8 100644
--- a/target/s390x/translate_vx.inc.c
+++ b/target/s390x/translate_vx.inc.c
@@ -1550,3 +1550,34 @@  static DisasJumpType op_vlp(DisasContext *s, DisasOps *o)
     gen_gvec_fn_2(abs, es, get_field(s->fields, v1), get_field(s->fields, v2));
     return DISAS_NEXT;
 }
+
+static DisasJumpType op_vmx(DisasContext *s, DisasOps *o)
+{
+    const uint8_t v1 = get_field(s->fields, v1);
+    const uint8_t v2 = get_field(s->fields, v2);
+    const uint8_t v3 = get_field(s->fields, v3);
+    const uint8_t es = get_field(s->fields, m4);
+
+    if (es > ES_64) {
+        gen_program_exception(s, PGM_SPECIFICATION);
+        return DISAS_NORETURN;
+    }
+
+    switch (s->fields->op2) {
+    case 0xff:
+        gen_gvec_fn_3(smax, es, v1, v2, v3);
+        break;
+    case 0xfd:
+        gen_gvec_fn_3(umax, es, v1, v2, v3);
+        break;
+    case 0xfe:
+        gen_gvec_fn_3(smin, es, v1, v2, v3);
+        break;
+    case 0xfc:
+        gen_gvec_fn_3(umin, es, v1, v2, v3);
+        break;
+    default:
+        g_assert_not_reached();
+    }
+    return DISAS_NEXT;
+}