From patchwork Sat May 13 09:32:43 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 9725089 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C782260146 for ; Sat, 13 May 2017 09:44:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B4A5F288CF for ; Sat, 13 May 2017 09:44:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A7998288D2; Sat, 13 May 2017 09:44:26 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1A530288CF for ; Sat, 13 May 2017 09:44:26 +0000 (UTC) Received: from localhost ([::1]:56870 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d9Tb7-0005rP-5c for patchwork-qemu-devel@patchwork.kernel.org; Sat, 13 May 2017 05:44:25 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37159) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d9TQD-0005B5-06 for qemu-devel@nongnu.org; Sat, 13 May 2017 05:33:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d9TQA-0001MQ-Sm for qemu-devel@nongnu.org; Sat, 13 May 2017 05:33:08 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:100::1]:43748) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d9TQA-0001H5-Ha for qemu-devel@nongnu.org; Sat, 13 May 2017 05:33:06 -0400 Received: from [2001:bc8:30d7:120:9bb5:8936:7e6a:9e36] (helo=ohm.rr44.fr) by hall.aurel32.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1d9TQ7-0002B6-Hu; Sat, 13 May 2017 11:33:03 +0200 Received: from aurel32 by ohm.rr44.fr with local (Exim 4.89) (envelope-from ) id 1d9TQ4-0004m1-25; Sat, 13 May 2017 11:33:00 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Sat, 13 May 2017 11:32:43 +0200 Message-Id: <20170513093248.18230-11-aurelien@aurel32.net> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170513093248.18230-1-aurelien@aurel32.net> References: <20170513093248.18230-1-aurelien@aurel32.net> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2001:bc8:30d7:100::1 Subject: [Qemu-devel] [PULL 10/15] target/sh4: optimize gen_write_sr using extract op 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: Aurelien Jarno , Stefan Hajnoczi Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This doesn't change the generated code on x86, but optimizes it on most RISC architectures and makes the code simpler to read. Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno --- target/sh4/translate.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/target/sh4/translate.c b/target/sh4/translate.c index fe8bff54a6..7a504a7f5a 100644 --- a/target/sh4/translate.c +++ b/target/sh4/translate.c @@ -204,12 +204,9 @@ static void gen_write_sr(TCGv src) { tcg_gen_andi_i32(cpu_sr, src, ~((1u << SR_Q) | (1u << SR_M) | (1u << SR_T))); - tcg_gen_shri_i32(cpu_sr_q, src, SR_Q); - tcg_gen_andi_i32(cpu_sr_q, cpu_sr_q, 1); - tcg_gen_shri_i32(cpu_sr_m, src, SR_M); - tcg_gen_andi_i32(cpu_sr_m, cpu_sr_m, 1); - tcg_gen_shri_i32(cpu_sr_t, src, SR_T); - tcg_gen_andi_i32(cpu_sr_t, cpu_sr_t, 1); + tcg_gen_extract_i32(cpu_sr_q, src, SR_Q, 1); + tcg_gen_extract_i32(cpu_sr_m, src, SR_M, 1); + tcg_gen_extract_i32(cpu_sr_t, src, SR_T, 1); } static inline void gen_save_cpu_state(DisasContext *ctx, bool save_pc)