From nobody Sun Nov 9 16:23:49 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1551181531931341.8940710078689; Tue, 26 Feb 2019 03:45:31 -0800 (PST) Received: from localhost ([127.0.0.1]:53440 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gybAu-0000EZ-Ld for importer@patchew.org; Tue, 26 Feb 2019 06:45:28 -0500 Received: from eggs.gnu.org ([209.51.188.92]:47677) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gyb5j-0004r8-Hs for qemu-devel@nongnu.org; Tue, 26 Feb 2019 06:40:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gyb5h-00076d-SW for qemu-devel@nongnu.org; Tue, 26 Feb 2019 06:40:07 -0500 Received: from mx1.redhat.com ([209.132.183.28]:56148) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gyb5h-0006rM-J5; Tue, 26 Feb 2019 06:40:05 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id AD28630B4A3D; Tue, 26 Feb 2019 11:39:46 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-93.ams2.redhat.com [10.36.117.93]) by smtp.corp.redhat.com (Postfix) with ESMTP id 56802600C0; Tue, 26 Feb 2019 11:39:45 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Tue, 26 Feb 2019 12:38:55 +0100 Message-Id: <20190226113915.20150-14-david@redhat.com> In-Reply-To: <20190226113915.20150-1-david@redhat.com> References: <20190226113915.20150-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Tue, 26 Feb 2019 11:39:46 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v1 13/33] s390x/tcg: Implement VECTOR LOAD LOGICAL ELEMENT AND ZERO X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-s390x@nongnu.org, Cornelia Huck , David Hildenbrand , Thomas Huth , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Fairly easy, zero out the vector before we load the desired element. Use a temporary vector so we don't modify the target vector on exceptions. Signed-off-by: David Hildenbrand --- target/s390x/insn-data.def | 2 ++ target/s390x/translate_vx.inc.c | 43 +++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index f4201ff55a..46a0739703 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -998,6 +998,8 @@ E(0xe742, VLEIG, VRI_a, V, 0, 0, 0, 0, vlei, 0, MO_64, IF_VEC) /* VECTOR LOAD GR FROM VR ELEMENT */ F(0xe721, VLGV, VRS_c, V, la2, 0, r1, 0, vlgv, 0, IF_VEC) +/* VECTOR LOAD LOGICAL ELEMENT AND ZERO */ + F(0xe704, VLLEZ, VRX, V, la2, 0, 0, 0, vllez, 0, IF_VEC) =20 #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.in= c.c index a02a3ba81f..301408d1f2 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -165,6 +165,11 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint= 8_t reg, TCGv_i64 enr, tcg_gen_gvec_mov(0, vec_full_reg_offset(v1), vec_full_reg_offset(v2), = 16, \ 16) =20 +static void zero_vec(uint8_t reg) +{ + tcg_gen_gvec_dup8i(vec_full_reg_offset(reg), 16, 16, 0); +} + static DisasJumpType op_vge(DisasContext *s, DisasOps *o) { const uint8_t es =3D s->insn->data; @@ -334,3 +339,41 @@ static DisasJumpType op_vlgv(DisasContext *s, DisasOps= *o) =20 return DISAS_NEXT; } + +static DisasJumpType op_vllez(DisasContext *s, DisasOps *o) +{ + uint8_t es =3D get_field(s->fields, m3); + uint8_t enr; + + switch (es) { + /* rightmost sub-element of leftmost doubleword */ + case MO_8: + enr =3D 7; + break; + case MO_16: + enr =3D 3; + break; + case MO_32: + enr =3D 1; + break; + case MO_64: + enr =3D 0; + break; + /* leftmost sub-element of leftmost doubleword */ + case 6: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + es =3D MO_32; + enr =3D 0; + break; + } + default: + /* fallthrough */ + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + zero_vec(TMP_VREG_0); + load_vec_element(s, TMP_VREG_0, enr, o->addr1, es); + gen_gvec_mov(get_field(s->fields, v1), TMP_VREG_0); + return DISAS_NEXT; +} --=20 2.17.2