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Wed, 30 Sep 2020 14:55:37 +0000 (UTC) Received: from t480s.redhat.com (ovpn-113-220.ams2.redhat.com [10.36.113.220]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9020C5C1D0; Wed, 30 Sep 2020 14:55:35 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v1 03/20] s390x/tcg: Implement VECTOR MULTIPLY SUM LOGICAL Date: Wed, 30 Sep 2020 16:55:06 +0200 Message-Id: <20200930145523.71087-4-david@redhat.com> In-Reply-To: <20200930145523.71087-1-david@redhat.com> References: <20200930145523.71087-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/30 00:26:33 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.469, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-s390x@nongnu.org, Cornelia Huck , Richard Henderson , Thomas Huth , David Hildenbrand Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Fortunately, we only need the Doubleword implementation. Signed-off-by: David Hildenbrand Reviewed-by: Richard Henderson --- target/s390x/insn-data.def | 2 ++ target/s390x/translate_vx.c.inc | 52 +++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index b55cb44f60..da7fe6f21c 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1151,6 +1151,8 @@ F(0xe7a7, VMO, VRR_c, V, 0, 0, 0, 0, vm, 0, IF_VEC) /* VECTOR MULTIPLY LOGICAL ODD */ F(0xe7a5, VMLO, VRR_c, V, 0, 0, 0, 0, vm, 0, IF_VEC) +/* VECTOR MULTIPLY SUM LOGICAL */ + F(0xe7b8, VMSL, VRR_d, VE, 0, 0, 0, 0, vmsl, 0, IF_VEC) /* VECTOR NAND */ F(0xe76e, VNN, VRR_c, VE, 0, 0, 0, 0, vnn, 0, IF_VEC) /* VECTOR NOR */ diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc index 44f54a79f4..4c1b430013 100644 --- a/target/s390x/translate_vx.c.inc +++ b/target/s390x/translate_vx.c.inc @@ -1779,6 +1779,58 @@ static DisasJumpType op_vm(DisasContext *s, DisasOps *o) return DISAS_NEXT; } +static DisasJumpType op_vmsl(DisasContext *s, DisasOps *o) +{ + TCGv_i64 l1, h1, l2, h2; + + if (get_field(s, m4) != ES_64) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + l1 = tcg_temp_new_i64(); + h1 = tcg_temp_new_i64(); + l2 = tcg_temp_new_i64(); + h2 = tcg_temp_new_i64(); + + /* Multipy both even elements from v2 and v3 */ + read_vec_element_i64(l1, get_field(s, v2), 0, ES_64); + read_vec_element_i64(h1, get_field(s, v3), 0, ES_64); + tcg_gen_mulu2_i64(l1, h1, l1, h1); + /* Shift result left by one bit if requested */ + if (extract32(get_field(s, m6), 3, 1)) { + tcg_gen_extract2_i64(h1, l1, h1, 63); + tcg_gen_shli_i64(l1, l1, 1); + } + + /* Multipy both odd elements from v2 and v3 */ + read_vec_element_i64(l2, get_field(s, v2), 1, ES_64); + read_vec_element_i64(h2, get_field(s, v3), 1, ES_64); + tcg_gen_mulu2_i64(l2, h2, l2, h2); + /* Shift result left by one bit if requested */ + if (extract32(get_field(s, m6), 2, 1)) { + tcg_gen_extract2_i64(h2, l2, h2, 63); + tcg_gen_shli_i64(l2, l2, 1); + } + + /* Add both intermediate results */ + tcg_gen_add2_i64(l1, h1, l1, h1, l2, h2); + /* Add whole v4 */ + read_vec_element_i64(h2, get_field(s, v4), 0, ES_64); + read_vec_element_i64(l2, get_field(s, v4), 1, ES_64); + tcg_gen_add2_i64(l1, h1, l1, h1, l2, h2); + + /* Store final result into v1. */ + write_vec_element_i64(h1, get_field(s, v1), 0, ES_64); + write_vec_element_i64(l1, get_field(s, v1), 1, ES_64); + + tcg_temp_free_i64(l1); + tcg_temp_free_i64(h1); + tcg_temp_free_i64(l2); + tcg_temp_free_i64(h2); + return DISAS_NEXT; +} + static DisasJumpType op_vnn(DisasContext *s, DisasOps *o) { gen_gvec_fn_3(nand, ES_8, get_field(s, v1),