From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14EDCC433EF for ; Wed, 6 Oct 2021 16:08:43 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B2D8C60F4C for ; Wed, 6 Oct 2021 16:08:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org B2D8C60F4C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:50980 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mY9TF-0002XS-TL for qemu-devel@archiver.kernel.org; Wed, 06 Oct 2021 12:08:41 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47388) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mY8j9-0002fH-Gk for qemu-devel@nongnu.org; Wed, 06 Oct 2021 11:21:04 -0400 Received: from mail-pl1-x635.google.com ([2607:f8b0:4864:20::635]:35402) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mY8ip-0007si-3Y for qemu-devel@nongnu.org; Wed, 06 Oct 2021 11:21:02 -0400 Received: by mail-pl1-x635.google.com with SMTP id w14so1918939pll.2 for ; Wed, 06 Oct 2021 08:20:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=E5Jm2U3YzT86a7A83pNU2NYiKZySLrD1nBQNoBZQx34=; b=UdwbQWKmnE6u7AoT+gYStJXdgmh5isxhFyTznixckaY42yZr7vSkVLTbZkfUeV7eqX a7fKV7XvIsNI8/RnEEYoYL00uiYWipmuHQSRs5d1QH6j+RVrAVXM7L0i0+xBXTN6arJy yqlTpZDD7kkfu+zzmNc7dhVbRsDOvawFSTb3D+X+LPhIjNKuDxsc3u0w1kiCIxpf4/gJ 5j4rCZ33MTmSusmxUXSlsccsgg4/HKUgYnTB5pvlZbuZ2IUN8VsQFyXGPwtd4ZRGRoZP MaqUC2X97D3myBP3cOn4PLgHsFSLkvgQtRMmNlI6GItyNGy+bqfveLFCDh23WTEQCw5a bj2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=E5Jm2U3YzT86a7A83pNU2NYiKZySLrD1nBQNoBZQx34=; b=zBbdP86JzcTP3aViL2Ek7393HIK6kpmdNWgfbQNXESdEaGNteTnHpzGZIVgVtys/K9 GK3pZY2IfITWbN3Xe9aO32oqQo2+ETCts5OqfyQFQmCbmap40St47NaPtMjzk2TvyS9R j0cX/P2o6qXI4TLtA5ANlzHPeCSa3CoDvTEXxMHzLsbershZEf694H2qKnkJp5CdMKJC zYLb7xjM8QyNNXw+iIEbVJ7lKTY/O+TwyP7HulGGSKlEhuDLcLMN1/t3xfAZcQbu2hAW RRRX+96RCrX+R+lmBjREVfUg2ka7m6R/4aiMJVlEXSvtUfb2J7uuMUEJB2ZfeX9MNoEw kvjw== X-Gm-Message-State: AOAM533S6FOuYbH7LthbOTrosBAwjTp7nT0ge3Tj9T31IyzwoL5kqRN+ YgMOtdCJVSASNlzZXNF0HbQIBSyIcYDs6Q== X-Google-Smtp-Source: ABdhPJxsvmt4yQBhmLXyHZ0j5X3olWzF9Toqbivsm1ibadoCP5wAeXKI/bdt0oX81czm+FqDOlFonw== X-Received: by 2002:a17:90a:df8a:: with SMTP id p10mr11840321pjv.137.1633533638586; Wed, 06 Oct 2021 08:20:38 -0700 (PDT) Received: from localhost.localdomain ([71.212.134.125]) by smtp.gmail.com with ESMTPSA id 130sm22239256pfz.77.2021.10.06.08.20.38 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Oct 2021 08:20:38 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL 26/28] tcg/s390x: Implement TCG_TARGET_HAS_sat_vec Date: Wed, 6 Oct 2021 08:20:12 -0700 Message-Id: <20211006152014.741026-27-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211006152014.741026-1-richard.henderson@linaro.org> References: <20211006152014.741026-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::635; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x635.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The unsigned saturations are handled via generic code using min/max. The signed saturations are expanded using double-sized arithmetic and a saturating pack. Since all operations are done via expansion, do not actually set TCG_TARGET_HAS_sat_vec. Signed-off-by: Richard Henderson --- tcg/s390x/tcg-target.opc.h | 3 ++ tcg/s390x/tcg-target.c.inc | 63 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 66 insertions(+) diff --git a/tcg/s390x/tcg-target.opc.h b/tcg/s390x/tcg-target.opc.h index 67afc82a93..0eb2350fb3 100644 --- a/tcg/s390x/tcg-target.opc.h +++ b/tcg/s390x/tcg-target.opc.h @@ -10,3 +10,6 @@ * emitted by tcg_expand_vec_op. For those familiar with GCC internals, * consider these to be UNSPEC with names. */ +DEF(s390_vuph_vec, 1, 1, 0, IMPLVEC) +DEF(s390_vupl_vec, 1, 1, 0, IMPLVEC) +DEF(s390_vpks_vec, 1, 2, 0, IMPLVEC) diff --git a/tcg/s390x/tcg-target.c.inc b/tcg/s390x/tcg-target.c.inc index 3b8fc62cd7..965d9ab54c 100644 --- a/tcg/s390x/tcg-target.c.inc +++ b/tcg/s390x/tcg-target.c.inc @@ -291,7 +291,10 @@ typedef enum S390Opcode { VRRc_VNO = 0xe76b, VRRc_VO = 0xe76a, VRRc_VOC = 0xe76f, + VRRc_VPKS = 0xe797, /* we leave the m5 cs field 0 */ VRRc_VS = 0xe7f7, + VRRa_VUPH = 0xe7d7, + VRRa_VUPL = 0xe7d6, VRRc_VX = 0xe76d, VRRf_VLVGP = 0xe762, @@ -2800,6 +2803,16 @@ static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc, } break; + case INDEX_op_s390_vuph_vec: + tcg_out_insn(s, VRRa, VUPH, a0, a1, vece); + break; + case INDEX_op_s390_vupl_vec: + tcg_out_insn(s, VRRa, VUPL, a0, a1, vece); + break; + case INDEX_op_s390_vpks_vec: + tcg_out_insn(s, VRRc, VPKS, a0, a1, a2, vece); + break; + case INDEX_op_mov_vec: /* Always emitted via tcg_out_mov. */ case INDEX_op_dup_vec: /* Always emitted via tcg_out_dup_vec. */ default: @@ -2842,6 +2855,9 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece) return -1; case INDEX_op_mul_vec: return vece < MO_64; + case INDEX_op_ssadd_vec: + case INDEX_op_sssub_vec: + return vece < MO_64 ? -1 : 0; default: return 0; } @@ -2897,6 +2913,43 @@ static void expand_vec_cmp(TCGType type, unsigned vece, TCGv_vec v0, } } +static void expand_vec_sat(TCGType type, unsigned vece, TCGv_vec v0, + TCGv_vec v1, TCGv_vec v2, TCGOpcode add_sub_opc) +{ + TCGv_vec h1 = tcg_temp_new_vec(type); + TCGv_vec h2 = tcg_temp_new_vec(type); + TCGv_vec l1 = tcg_temp_new_vec(type); + TCGv_vec l2 = tcg_temp_new_vec(type); + + tcg_debug_assert (vece < MO_64); + + /* Unpack with sign-extension. */ + vec_gen_2(INDEX_op_s390_vuph_vec, type, vece, + tcgv_vec_arg(h1), tcgv_vec_arg(v1)); + vec_gen_2(INDEX_op_s390_vuph_vec, type, vece, + tcgv_vec_arg(h2), tcgv_vec_arg(v2)); + + vec_gen_2(INDEX_op_s390_vupl_vec, type, vece, + tcgv_vec_arg(l1), tcgv_vec_arg(v1)); + vec_gen_2(INDEX_op_s390_vupl_vec, type, vece, + tcgv_vec_arg(l2), tcgv_vec_arg(v2)); + + /* Arithmetic on a wider element size. */ + vec_gen_3(add_sub_opc, type, vece + 1, tcgv_vec_arg(h1), + tcgv_vec_arg(h1), tcgv_vec_arg(h2)); + vec_gen_3(add_sub_opc, type, vece + 1, tcgv_vec_arg(l1), + tcgv_vec_arg(l1), tcgv_vec_arg(l2)); + + /* Pack with saturation. */ + vec_gen_3(INDEX_op_s390_vpks_vec, type, vece + 1, + tcgv_vec_arg(v0), tcgv_vec_arg(h1), tcgv_vec_arg(l1)); + + tcg_temp_free_vec(h1); + tcg_temp_free_vec(h2); + tcg_temp_free_vec(l1); + tcg_temp_free_vec(l2); +} + void tcg_expand_vec_op(TCGOpcode opc, TCGType type, unsigned vece, TCGArg a0, ...) { @@ -2920,6 +2973,13 @@ void tcg_expand_vec_op(TCGOpcode opc, TCGType type, unsigned vece, tcg_temp_free_vec(t0); break; + case INDEX_op_ssadd_vec: + expand_vec_sat(type, vece, v0, v1, v2, INDEX_op_add_vec); + break; + case INDEX_op_sssub_vec: + expand_vec_sat(type, vece, v0, v1, v2, INDEX_op_sub_vec); + break; + default: g_assert_not_reached(); } @@ -3080,6 +3140,8 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) case INDEX_op_sari_vec: case INDEX_op_shli_vec: case INDEX_op_shri_vec: + case INDEX_op_s390_vuph_vec: + case INDEX_op_s390_vupl_vec: return C_O1_I1(v, v); case INDEX_op_add_vec: case INDEX_op_sub_vec: @@ -3099,6 +3161,7 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) case INDEX_op_smin_vec: case INDEX_op_umax_vec: case INDEX_op_umin_vec: + case INDEX_op_s390_vpks_vec: return C_O1_I2(v, v, v); case INDEX_op_rotls_vec: case INDEX_op_shls_vec: -- 2.25.1