From patchwork Mon Feb 25 11:55:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 1047701 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 447L8f34mrz9s4Z for ; Mon, 25 Feb 2019 22:59:30 +1100 (AEDT) Received: from localhost ([127.0.0.1]:35777 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gyEuu-0007jJ-EF for incoming@patchwork.ozlabs.org; Mon, 25 Feb 2019 06:59:28 -0500 Received: from eggs.gnu.org ([209.51.188.92]:50219) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gyEsC-0006O0-8J for qemu-devel@nongnu.org; Mon, 25 Feb 2019 06:56:40 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gyEry-0005ro-Vt for qemu-devel@nongnu.org; Mon, 25 Feb 2019 06:56:30 -0500 Received: from mx1.redhat.com ([209.132.183.28]:48070) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gyErt-0005fD-Si; Mon, 25 Feb 2019 06:56:23 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 639153082E58; Mon, 25 Feb 2019 11:56:10 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-1.ams2.redhat.com [10.36.117.1]) by smtp.corp.redhat.com (Postfix) with ESMTP id 113745C21E; Mon, 25 Feb 2019 11:56:08 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Mon, 25 Feb 2019 12:55:51 +0100 Message-Id: <20190225115552.7534-7-david@redhat.com> In-Reply-To: <20190225115552.7534-1-david@redhat.com> References: <20190225115552.7534-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.46]); Mon, 25 Feb 2019 11:56:10 +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 6/7] s390x/tcg: Implement LOAD LENGTHENED short HFP to long HFP 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Nice trick to load a 32 bit value into vector element 0 (32 bit element size) from memory, zeroing out element1. The short HFP to long HFP conversion really only is a shift. Signed-off-by: David Hildenbrand Reviewed-by: Richard Henderson --- target/s390x/insn-data.def | 2 ++ target/s390x/translate.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 61582372ab..fb6ee18650 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -598,6 +598,8 @@ F(0xed04, LDEB, RXE, Z, 0, m2_32u, new, f1, ldeb, 0, IF_BFP) F(0xed05, LXDB, RXE, Z, 0, m2_64, new_P, x1, lxdb, 0, IF_BFP) F(0xed06, LXEB, RXE, Z, 0, m2_32u, new_P, x1, lxeb, 0, IF_BFP) + F(0xb324, LDER, RXE, Z, 0, e2, new, f1, lde, 0, IF_AFP1) + F(0xed24, LDE, RXE, Z, 0, m2_32u, new, f1, lde, 0, IF_AFP1) /* LOAD ROUNDED */ F(0xb344, LEDBR, RRE, Z, 0, f2, new, e1, ledb, 0, IF_BFP) F(0xb345, LDXBR, RRE, Z, x2h, x2l, new, f1, ldxb, 0, IF_BFP) diff --git a/target/s390x/translate.c b/target/s390x/translate.c index 322fbbdf81..34799a8704 100644 --- a/target/s390x/translate.c +++ b/target/s390x/translate.c @@ -2724,6 +2724,12 @@ static DisasJumpType op_lxeb(DisasContext *s, DisasOps *o) return DISAS_NEXT; } +static DisasJumpType op_lde(DisasContext *s, DisasOps *o) +{ + tcg_gen_shli_i64(o->out, o->in2, 32); + return DISAS_NEXT; +} + static DisasJumpType op_llgt(DisasContext *s, DisasOps *o) { tcg_gen_andi_i64(o->out, o->in2, 0x7fffffff);