From patchwork Tue Sep 8 12:44:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandar Markovic X-Patchwork-Id: 11763331 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C3A47618 for ; Tue, 8 Sep 2020 12:46:43 +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 8BD0722225 for ; Tue, 8 Sep 2020 12:46:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GUBcHA1w" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8BD0722225 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:38306 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kFd1G-0005YK-LC for patchwork-qemu-devel@patchwork.kernel.org; Tue, 08 Sep 2020 08:46:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37522) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kFczF-00022n-Er for qemu-devel@nongnu.org; Tue, 08 Sep 2020 08:44:37 -0400 Received: from mail-ed1-x543.google.com ([2a00:1450:4864:20::543]:42472) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kFczD-0001LC-LV for qemu-devel@nongnu.org; Tue, 08 Sep 2020 08:44:37 -0400 Received: by mail-ed1-x543.google.com with SMTP id l63so15814899edl.9 for ; Tue, 08 Sep 2020 05:44:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=lCrIb5WUVl3SkQdV+w3xyR/zikAcpGVj/acDDdcJ41k=; b=GUBcHA1wqnvxU9PRbwyJncSD8jwDS7+xXWNt6Sul3RQdFjWCvW2cI4uQ2lCKY2Wcdm vOeDHM9OeTcojR1WsvqzaolMGC/2ysfgG1yZBHrGwuhEAAjZHvcqYnTyaxrRvWB0XxLN W6lC5sZQaNCKr3Q13uypLX2aXHojXro+a7ZIqAhHjMbXloctrhu7ZSD/w87rVnZOWZRr VrI/oHRtRzKmPKBi5LbYL8e4+ux270Bhq2L+beO8Pp35e+SC7dp1GyefQ4sYqogE9oo7 lXoaHtI8yVpzHTywkj/jWwLFkZNSB5tSjung+utPvH4TKUevFM5xUNq8ItRDDNonZ3nk l8hQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=lCrIb5WUVl3SkQdV+w3xyR/zikAcpGVj/acDDdcJ41k=; b=rNFQ6tGM2J719osnefqqMNi3TTwoUoNQpnXNQLhBQIAmXGvJ/jQAlM9YheN4LSSRYW +05SDAFHyG61Whk1W+u5SJw2B8KTfkxbD19KRy0wDk5ih81rPUEklzPBTP8Vqa4+6HcB 5diWtw/JaoLxVTv/smtlH+FiFH/JIS8IpU7flRxhWuvlQOn6iOttrQzTFMzDaTG3uTgE R/n1sQWNxc8T+THzEmZ316QA40VWTybDbCfu/BCLTiMZg/FT7zDnuDP1fOhHi5E/6n4T IoYrLqZsXJhou7UO0YMB+utfksY50AqF8fmYGWvoWnE21f20ti3vFKXpXCU6Ryju5iXB M71A== X-Gm-Message-State: AOAM532RYSS2rux6+HV2K8GtKTU8ecgWGDGU5SHzTrz/QIW6U6jfsv0t 71rPbGPn13RqjEuuHOUJ0PXYO68bxqo= X-Google-Smtp-Source: ABdhPJx7/2ArYX2RyR9jknaODlJ/BLuBavNs2ZRrHyHFmkmV5t3Y2YxeTF8xV+c2PMLSdY9VfiDodw== X-Received: by 2002:a50:84a2:: with SMTP id 31mr27602764edq.138.1599569074200; Tue, 08 Sep 2020 05:44:34 -0700 (PDT) Received: from rtrkw774-lin.syrmia.com ([46.240.135.226]) by smtp.gmail.com with ESMTPSA id u23sm4396604ejc.108.2020.09.08.05.44.33 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 08 Sep 2020 05:44:33 -0700 (PDT) From: Aleksandar Markovic To: qemu-devel@nongnu.org Subject: [PATCH 4/4] target/mips: Refactor helpers for fp comparison instructions Date: Tue, 8 Sep 2020 14:44:28 +0200 Message-Id: <1599569068-9855-5-git-send-email-aleksandar.qemu.devel@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1599569068-9855-1-git-send-email-aleksandar.qemu.devel@gmail.com> References: <1599569068-9855-1-git-send-email-aleksandar.qemu.devel@gmail.com> Received-SPF: pass client-ip=2a00:1450:4864:20::543; envelope-from=aleksandar.qemu.devel@gmail.com; helo=mail-ed1-x543.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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, FREEMAIL_FROM=0.001, 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: , Cc: aleksandar.rikalo@syrmia.com, Aleksandar Markovic , aurelien@aurel32.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" This change causes slighlty better performance of emulation of fp comparison instructions via better compiler optimization of refactored code. The functionality is otherwise unchanged. Signed-off-by: Aleksandar Markovic --- target/mips/fpu_helper.c | 56 +++++++++++++++++++++++----------------- 1 file changed, 32 insertions(+), 24 deletions(-) diff --git a/target/mips/fpu_helper.c b/target/mips/fpu_helper.c index f480c7296e..22d533322b 100644 --- a/target/mips/fpu_helper.c +++ b/target/mips/fpu_helper.c @@ -1780,11 +1780,12 @@ void helper_cmp_d_ ## op(CPUMIPSState *env, uint64_t fdt0, \ { \ int c; \ c = cond; \ - update_fcr31(env, GETPC()); \ - if (c) \ + if (c) { \ SET_FP_COND(cc, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc, env->active_fpu); \ + } \ + update_fcr31(env, GETPC()); \ } \ void helper_cmpabs_d_ ## op(CPUMIPSState *env, uint64_t fdt0, \ uint64_t fdt1, int cc) \ @@ -1793,11 +1794,12 @@ void helper_cmpabs_d_ ## op(CPUMIPSState *env, uint64_t fdt0, \ fdt0 = float64_abs(fdt0); \ fdt1 = float64_abs(fdt1); \ c = cond; \ - update_fcr31(env, GETPC()); \ - if (c) \ + if (c) { \ SET_FP_COND(cc, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc, env->active_fpu); \ + } \ + update_fcr31(env, GETPC()); \ } /* @@ -1859,11 +1861,12 @@ void helper_cmp_s_ ## op(CPUMIPSState *env, uint32_t fst0, \ { \ int c; \ c = cond; \ - update_fcr31(env, GETPC()); \ - if (c) \ + if (c) { \ SET_FP_COND(cc, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc, env->active_fpu); \ + } \ + update_fcr31(env, GETPC()); \ } \ void helper_cmpabs_s_ ## op(CPUMIPSState *env, uint32_t fst0, \ uint32_t fst1, int cc) \ @@ -1872,11 +1875,12 @@ void helper_cmpabs_s_ ## op(CPUMIPSState *env, uint32_t fst0, \ fst0 = float32_abs(fst0); \ fst1 = float32_abs(fst1); \ c = cond; \ - update_fcr31(env, GETPC()); \ - if (c) \ + if (c) { \ SET_FP_COND(cc, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc, env->active_fpu); \ + } \ + update_fcr31(env, GETPC()); \ } /* @@ -1944,15 +1948,17 @@ void helper_cmp_ps_ ## op(CPUMIPSState *env, uint64_t fdt0, \ fsth1 = fdt1 >> 32; \ cl = condl; \ ch = condh; \ - update_fcr31(env, GETPC()); \ - if (cl) \ + if (cl) { \ SET_FP_COND(cc, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc, env->active_fpu); \ - if (ch) \ + } \ + if (ch) { \ SET_FP_COND(cc + 1, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc + 1, env->active_fpu); \ + } \ + update_fcr31(env, GETPC()); \ } \ void helper_cmpabs_ps_ ## op(CPUMIPSState *env, uint64_t fdt0, \ uint64_t fdt1, int cc) \ @@ -1965,15 +1971,17 @@ void helper_cmpabs_ps_ ## op(CPUMIPSState *env, uint64_t fdt0, \ fsth1 = float32_abs(fdt1 >> 32); \ cl = condl; \ ch = condh; \ - update_fcr31(env, GETPC()); \ - if (cl) \ + if (cl) { \ SET_FP_COND(cc, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc, env->active_fpu); \ - if (ch) \ + } \ + if (ch) { \ SET_FP_COND(cc + 1, env->active_fpu); \ - else \ + } else { \ CLEAR_FP_COND(cc + 1, env->active_fpu); \ + } \ + update_fcr31(env, GETPC()); \ } /* @@ -2080,12 +2088,12 @@ uint64_t helper_r6_cmp_d_ ## op(CPUMIPSState *env, uint64_t fdt0, \ { \ uint64_t c; \ c = cond; \ - update_fcr31(env, GETPC()); \ if (c) { \ return -1; \ } else { \ return 0; \ } \ + update_fcr31(env, GETPC()); \ } /* @@ -2175,12 +2183,12 @@ uint32_t helper_r6_cmp_s_ ## op(CPUMIPSState *env, uint32_t fst0, \ { \ uint64_t c; \ c = cond; \ - update_fcr31(env, GETPC()); \ if (c) { \ return -1; \ } else { \ return 0; \ } \ + update_fcr31(env, GETPC()); \ } /*