From patchwork Tue Jan 18 01:45:11 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Chang X-Patchwork-Id: 12715826 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 590EEC433F5 for ; Tue, 18 Jan 2022 02:04:20 +0000 (UTC) Received: from localhost ([::1]:34752 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n9dr6-0006Oz-UF for qemu-devel@archiver.kernel.org; Mon, 17 Jan 2022 21:04:17 -0500 Received: from eggs.gnu.org ([209.51.188.92]:50584) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n9dZO-0000Hw-Ss for qemu-devel@nongnu.org; Mon, 17 Jan 2022 20:46:02 -0500 Received: from [2607:f8b0:4864:20::62e] (port=37591 helo=mail-pl1-x62e.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n9dZM-0007Vc-2B for qemu-devel@nongnu.org; Mon, 17 Jan 2022 20:45:58 -0500 Received: by mail-pl1-x62e.google.com with SMTP id n11so21019736plf.4 for ; Mon, 17 Jan 2022 17:45:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6X6uKJ2JNZMFaH4JOhQuJr7oqwjryS8q6Pz6EFPHQyM=; b=eYbdtwT/7C7Dpb1/QQi2ZR1H4GSx3Fjf1pvuQrNJDqc9mimKY0NqL2schChYpLbzFI stLQ4NjCqdpsMb0S9pvOzI2fdmbdS+rDELXR6U8Fe9H/jpH2YuyG6DqL89IAGsURpypt IzuRorZVUbh9gRrI5LfobGLfb02rKDeMSJIj5ZRgQLWPJZ0idkdH+//vMnlqL9CSWqgA p8aMyngtak6gTY8nsTkQ9LoCXE01ubRngi/C/sW6Cib/7kd3FSTnXU5n7qAx6kuTtVdH nzPp8LMvtW2brxp4qo2CxZB7QAF4DGE1gUj31OYNEDi3Ay2mm4j6SDn9JTB3EUKL9Niz YT6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6X6uKJ2JNZMFaH4JOhQuJr7oqwjryS8q6Pz6EFPHQyM=; b=5HRVSt9DKINtHYYi24FF8Qh7r1Bh8uozyztQSalpiyf0oys9k1tXmxsSPJMFWcMVat TM/25byLz+KbTQ/a2GxJA3Kw3znbTqVVcKy0LH0cQcANzr2SLQBZmc4vKb52D9gkwtJU vEhXt3uCQV3kUTFdmqzYOwA2xAg6AgwmXg6i0sRmbVZ+lXQv5OFMRtMkbnpfYlY0pans S93TjV3/secm8UDt5/KjrCptuCP60HzFaKsCZi+ZOrWcdIP0fzhpq6emt0uJ/rERFbZs JxJMDaL19KZQ7Bpfqsy1on7oOufE+gh2Jv4l/TYk0eTitrq0zPKIDNE6Rdhf7Aoe6vkT /fMQ== X-Gm-Message-State: AOAM533UrVA2jf+/7DJTSFwn7/lBTkD3MJDDDvatdPZI5O0A65dpRWtV 1FSoS2LvqyApiZciuVjA34CQUzgIXCMQHfPu X-Google-Smtp-Source: ABdhPJz0eqcEWHNOc3M5yqgfSSniQdIyh01JE7Iku7dKxLHv8IhV/8lG8NuRnU8BtLhVi6R52o1iLA== X-Received: by 2002:a17:902:b78b:b0:14a:1f78:2739 with SMTP id e11-20020a170902b78b00b0014a1f782739mr25150927pls.45.1642470354640; Mon, 17 Jan 2022 17:45:54 -0800 (PST) Received: from hsinchu16.internal.sifive.com (59-124-168-89.hinet-ip.hinet.net. [59.124.168.89]) by smtp.gmail.com with ESMTPSA id c12sm8286136pfm.113.2022.01.17.17.45.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Jan 2022 17:45:54 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org Subject: [PATCH v2 08/17] target/riscv: rvv-1.0: Add Zve64f support for widening type-convert insns Date: Tue, 18 Jan 2022 09:45:11 +0800 Message-Id: <20220118014522.13613-9-frank.chang@sifive.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220118014522.13613-1-frank.chang@sifive.com> References: <20220118014522.13613-1-frank.chang@sifive.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::62e (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::62e; envelope-from=frank.chang@sifive.com; helo=mail-pl1-x62e.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 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, PDS_HP_HELO_NORDNS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-riscv@nongnu.org, Frank Chang , Bin Meng , Richard Henderson , Alistair Francis , Palmer Dabbelt , LIU Zhiwei Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Frank Chang Vector widening conversion instructions are provided to and from all supported integer EEWs for Zve64f extension. Signed-off-by: Frank Chang Reviewed-by: Alistair Francis --- target/riscv/insn_trans/trans_rvv.c.inc | 32 +++++++++++++++++++------ 1 file changed, 25 insertions(+), 7 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index 08f25e3ce4..58f12366dd 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -77,6 +77,17 @@ static bool require_zve64f(DisasContext *s) return s->ext_zve64f ? s->sew <= MO_32 : true; } +static bool require_scale_zve64f(DisasContext *s) +{ + /* RVV + Zve64f = RVV. */ + if (has_ext(s, RVV)) { + return true; + } + + /* Zve64f doesn't support FP64. (Section 18.2) */ + return s->ext_zve64f ? s->sew <= MO_16 : true; +} + /* Destination vector register group cannot overlap source mask register. */ static bool require_vm(int vm, int vd) { @@ -2333,7 +2344,8 @@ static bool opfvv_widen_check(DisasContext *s, arg_rmrr *a) require_scale_rvf(s) && (s->sew != MO_8) && vext_check_isa_ill(s) && - vext_check_dss(s, a->rd, a->rs1, a->rs2, a->vm); + vext_check_dss(s, a->rd, a->rs1, a->rs2, a->vm) && + require_scale_zve64f(s); } /* OPFVV with WIDEN */ @@ -2372,7 +2384,8 @@ static bool opfvf_widen_check(DisasContext *s, arg_rmrr *a) require_scale_rvf(s) && (s->sew != MO_8) && vext_check_isa_ill(s) && - vext_check_ds(s, a->rd, a->rs2, a->vm); + vext_check_ds(s, a->rd, a->rs2, a->vm) && + require_scale_zve64f(s); } /* OPFVF with WIDEN */ @@ -2402,7 +2415,8 @@ static bool opfwv_widen_check(DisasContext *s, arg_rmrr *a) require_scale_rvf(s) && (s->sew != MO_8) && vext_check_isa_ill(s) && - vext_check_dds(s, a->rd, a->rs1, a->rs2, a->vm); + vext_check_dds(s, a->rd, a->rs1, a->rs2, a->vm) && + require_scale_zve64f(s); } /* WIDEN OPFVV with WIDEN */ @@ -2441,7 +2455,8 @@ static bool opfwf_widen_check(DisasContext *s, arg_rmrr *a) require_scale_rvf(s) && (s->sew != MO_8) && vext_check_isa_ill(s) && - vext_check_dd(s, a->rd, a->rs2, a->vm); + vext_check_dd(s, a->rd, a->rs2, a->vm) && + require_scale_zve64f(s); } /* WIDEN OPFVF with WIDEN */ @@ -2700,14 +2715,16 @@ static bool opfv_widen_check(DisasContext *s, arg_rmr *a) static bool opxfv_widen_check(DisasContext *s, arg_rmr *a) { return opfv_widen_check(s, a) && - require_rvf(s); + require_rvf(s) && + require_zve64f(s); } static bool opffv_widen_check(DisasContext *s, arg_rmr *a) { return opfv_widen_check(s, a) && require_scale_rvf(s) && - (s->sew != MO_8); + (s->sew != MO_8) && + require_scale_zve64f(s); } #define GEN_OPFV_WIDEN_TRANS(NAME, CHECK, HELPER, FRM) \ @@ -2758,7 +2775,8 @@ static bool opfxv_widen_check(DisasContext *s, arg_rmr *a) require_scale_rvf(s) && vext_check_isa_ill(s) && /* OPFV widening instructions ignore vs1 check */ - vext_check_ds(s, a->rd, a->rs2, a->vm); + vext_check_ds(s, a->rd, a->rs2, a->vm) && + require_scale_zve64f(s); } #define GEN_OPFXV_WIDEN_TRANS(NAME) \