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[2001:8b0:1d0::2]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45b79799c33sm28691015e9.5.2025.08.28.04.34.44 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Aug 2025 04:34:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1756380885; x=1756985685; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=we7y5/VDqLpIsOAURE4m8mL6SQ4y7Eow7HTKGCKn19g=; b=WdTBDHchOWnXT/9jelkThKKUGim9hTmAPesmYaoakl/cH6z644EJsVaVwYe+vbtO3V lQLeoqIn//h+K3MsdHSuWHAGJaKUvsv6hwXVmvQSWev7PWsNFetckMXJdfsgLsS3+MXo kchqqEA9qoS7UDlSXrgIUoVEYLmC1aIfx2qf4Dc+LzxZnzQ6yyYHF9HxYVCPWNM3JG+l HsduzyfUAqRqoPeqts0hRHybElHUxKQSwztztk2Z1dKi1XcxbdvdUuRlKPT8PhniJOsR KsYLVzme7Zd0d6qbxBy//HQWR0n1DZ2IRirmFpc1d5xyd1uTsQ7SCr6duBpZgEO4S+l/ 9fmw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756380885; x=1756985685; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=we7y5/VDqLpIsOAURE4m8mL6SQ4y7Eow7HTKGCKn19g=; b=jYaYzcoR9PTol9NXDQAUErPMB+LzlSw96RitQU5rFLBB8BQ+24AdYssz/vV1PoGBLX HEH082hAWW2ynrdlBzpIx5UW0X+VVfdLQq0dzGb323/Vk2A/S9aUtxhtb8QfCrjA6wjI DlKKq0qBf6gOYnFzCTFdBs2TXT7Y1NhbqTnP3RPcy4GHCGddyUfdXVO5oRUsL0MJbwlk YJhfojI/Y2tnAuA6TWwH0HyI53VcF4aGQFa4iKUxxgql0pXVxotx2GkF4zdqkvgf7TAi Ur5v9UX6eaK4xjph48kaqZij9ssCLS/J3ZiID7GW49my5rDiBl/if/fqH7bAr+GMPeUV OWCg== X-Gm-Message-State: AOJu0Yys69crx9gB9zNdKwJOOBrt+VDC05oFd/i+bsVdEPTRZCjZzsCo +03Lxi6HRJ/PafbfD0IBJRQ0If3jWjql0a67FL+4Gf+DdiZqF8pu9+DN9qt7Q5hFvBwvUs2o5aU siT7m X-Gm-Gg: ASbGncsDkdHgpr1xUcjtk0tTwR85LwMWEljz5RiWg5WwZRqc2K12MlbFVnOpnszptaN j4Pxp3+LwJkK2pAaSP6JqoUU/isD7iprKyXE3bHEbeVKjOMRq0sq3A8upXWrdv1KLZvoIZF6v1A VF+5I7ane0Fd2DAUMvbqsBIL4vLnxey0jTaMAHiXHYIOa697zh2GsOgrFYmtTgCW7KN68MY8qHm thfbpaKEVUd8+lomAF1kkoVPCUawLQCpWx38UdvMYEZnSPFf+BkapE/Eev12RPh8br/9vEa9wiQ I6HaYEiuIjhK046K4LNJ8iISPT4ng04HG+497ZV7mXIBsquHQxCZlrrlyC0PRhf51dGkefuY64J rw05E98foJ59qQcckI6KLLTlabk+S X-Google-Smtp-Source: AGHT+IH3UimZfMWvkNi3rlnHNjGxQu6JbaJnzOZB5o1B1tltyAI1wDez5GK4H2AcFyUnocVX1Rf1mA== X-Received: by 2002:a05:600c:c48f:b0:459:dfa8:b854 with SMTP id 5b1f17b1804b1-45b5fbee605mr125589405e9.5.1756380885212; Thu, 28 Aug 2025 04:34:45 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 11/32] target/arm: Split out gen_wrap2_i32 helper Date: Thu, 28 Aug 2025 12:34:08 +0100 Message-ID: <20250828113430.3214314-12-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250828113430.3214314-1-peter.maydell@linaro.org> References: <20250828113430.3214314-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32d; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x32d.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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1756381158415116600 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Wrapper to extract the low 32 bits, perform an operation, and zero-extend back to 64 bits. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Message-id: 20250803014019.416797-5-richard.henderson@linaro.org [PMM: fixed wrong output-reg argument in callsites; add comment] Signed-off-by: Peter Maydell --- target/arm/tcg/translate-a64.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index bb92bdc296a..c0fa9a44e7a 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -8231,13 +8231,22 @@ static bool gen_rr(DisasContext *s, int rd, int rn,= ArithOneOp fn) return true; } =20 +/* + * Perform 32-bit operation fn on the low half of n; + * the high half of the output is zeroed. + */ +static void gen_wrap2_i32(TCGv_i64 d, TCGv_i64 n, NeonGenOneOpFn fn) +{ + TCGv_i32 t =3D tcg_temp_new_i32(); + + tcg_gen_extrl_i64_i32(t, n); + fn(t, t); + tcg_gen_extu_i32_i64(d, t); +} + static void gen_rbit32(TCGv_i64 tcg_rd, TCGv_i64 tcg_rn) { - TCGv_i32 t32 =3D tcg_temp_new_i32(); - - tcg_gen_extrl_i64_i32(t32, tcg_rn); - gen_helper_rbit(t32, t32); - tcg_gen_extu_i32_i64(tcg_rd, t32); + gen_wrap2_i32(tcg_rd, tcg_rn, gen_helper_rbit); } =20 static void gen_rev16_xx(TCGv_i64 tcg_rd, TCGv_i64 tcg_rn, TCGv_i64 mask) @@ -8293,11 +8302,7 @@ static void gen_clz64(TCGv_i64 tcg_rd, TCGv_i64 tcg_= rn) =20 static void gen_cls32(TCGv_i64 tcg_rd, TCGv_i64 tcg_rn) { - TCGv_i32 t32 =3D tcg_temp_new_i32(); - - tcg_gen_extrl_i64_i32(t32, tcg_rn); - tcg_gen_clrsb_i32(t32, t32); - tcg_gen_extu_i32_i64(tcg_rd, t32); + gen_wrap2_i32(tcg_rd, tcg_rn, tcg_gen_clrsb_i32); } =20 TRANS(CLZ, gen_rr, a->rd, a->rn, a->sf ? gen_clz64 : gen_clz32) --=20 2.43.0