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([2602:ae:154a:9f01:b1e0:bfd9:8b1a:efeb]) by smtp.gmail.com with ESMTPSA id q1-20020a17090a1b0100b0022c0a05229fsm7757940pjq.41.2023.03.07.10.35.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Mar 2023 10:35:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1678214115; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Jq9KoSyW2mIrQO7O/lR75k8qpkz+hVmZSfTa0f3eIeM=; b=DpqwGgpUrmtWLimRhHciBDOZzi2+QW7Q1JhvErSpAZMlMEX5NRD6pIza+X9AlQM6Wo LiSKzZWoqi/TlDbVTlAKh4G1u361EDcOh2fbIToOM0VMg6zIbkwAY2qOBUgLYCB2UPyE Px5gZV8mS1eqpAbyvNzFbnFtzic0XvsU7ygJc8GC9KbGFq0OHvuYT8N9J3wUObAVgRh3 qe7eJPW3Kxx8Ak+gjjd54WhQvqAfczPRGDuNo4c45qXtD2N3GodSjcjX7I/8Zvey9V6r a6FPYy2cHgrGTXPpEqgqRoHBsh1JBbHUA390qbgGLdjycny2wMZ/sS3RLzQgqVgroM8/ 2Gjg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678214115; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Jq9KoSyW2mIrQO7O/lR75k8qpkz+hVmZSfTa0f3eIeM=; b=HgI602oXwGxKZM4KlanQ/QQhuZ+YLiCGKZ7Qr4Hw+1Uh5UbL9qhOv5u2f1/tHdt+EF iysKVyG7++WS8Q2AayH1PIimPkuLOEPg+iirBOAigBex5mOeAnbYa4TKGcHcIaaWTJK1 gXBGCxMX4TTYJw5r4DNocOCumQuKSAdJrYM5Du7OdcVixI0w2DCHppeRXKE3lpUeT9OU WTKpEsARZrXk+hyl+EcsdLX+xl2dreIboRz8bHKZXgBHwguit6rSBdOb4GdX9eGqDeRx GWBSAw1W+wAAaKWMnXbkcb9pfN0iZq3JwfE39hedUMaaj5iQodXFxR27rw3T+jzlJPJr Dxag== X-Gm-Message-State: AO0yUKWq30BQfSKDCTO+fJjHWSQmno8uFyjCTQ/K+VGip9Z5cSSZSCJ1 14A3AJMMjsEefp4ElqNSye6gENnWYxLSoxRr1q4= X-Google-Smtp-Source: AK7set+TAJZhsdeXZw3KraftO2KkMcAvbb0uxbDvv9ZtzuvrZr6b+FhajTHf/8duNTsKMiYzKEIM4w== X-Received: by 2002:a17:90b:4ac4:b0:233:cbb9:9682 with SMTP id mh4-20020a17090b4ac400b00233cbb99682mr17275839pjb.24.1678214115418; Tue, 07 Mar 2023 10:35:15 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: Daniel Henrique Barboza , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , David Gibson , Greg Kurz , qemu-ppc@nongnu.org Subject: [PATCH v2 14/25] target/ppc: Avoid tcg_const_i64 in do_vcntmb Date: Tue, 7 Mar 2023 10:34:52 -0800 Message-Id: <20230307183503.2512684-15-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230307183503.2512684-1-richard.henderson@linaro.org> References: <20230307183503.2512684-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2607:f8b0:4864:20::62c; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62c.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=unavailable 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: 1678214260076100001 Compute both partial results separately and accumulate at the end, instead of accumulating in the middle. Signed-off-by: Richard Henderson Reviewed-by: Daniel Henrique Barboza Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- Cc: Daniel Henrique Barboza Cc: C=C3=A9dric Le Goater Cc: David Gibson Cc: Greg Kurz Cc: qemu-ppc@nongnu.org --- target/ppc/translate/vmx-impl.c.inc | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx= -impl.c.inc index 7af6d7217d..ca27c11d87 100644 --- a/target/ppc/translate/vmx-impl.c.inc +++ b/target/ppc/translate/vmx-impl.c.inc @@ -2236,24 +2236,25 @@ static bool trans_MTVSRBMI(DisasContext *ctx, arg_D= X_b *a) =20 static bool do_vcntmb(DisasContext *ctx, arg_VX_mp *a, int vece) { - TCGv_i64 rt, vrb, mask; - rt =3D tcg_const_i64(0); - vrb =3D tcg_temp_new_i64(); + TCGv_i64 r[2], mask; + + r[0] =3D tcg_temp_new_i64(); + r[1] =3D tcg_temp_new_i64(); mask =3D tcg_constant_i64(dup_const(vece, 1ULL << ((8 << vece) - 1))); =20 for (int i =3D 0; i < 2; i++) { - get_avr64(vrb, a->vrb, i); + get_avr64(r[i], a->vrb, i); if (a->mp) { - tcg_gen_and_i64(vrb, mask, vrb); + tcg_gen_and_i64(r[i], mask, r[i]); } else { - tcg_gen_andc_i64(vrb, mask, vrb); + tcg_gen_andc_i64(r[i], mask, r[i]); } - tcg_gen_ctpop_i64(vrb, vrb); - tcg_gen_add_i64(rt, rt, vrb); + tcg_gen_ctpop_i64(r[i], r[i]); } =20 - tcg_gen_shli_i64(rt, rt, TARGET_LONG_BITS - 8 + vece); - tcg_gen_trunc_i64_tl(cpu_gpr[a->rt], rt); + tcg_gen_add_i64(r[0], r[0], r[1]); + tcg_gen_shli_i64(r[0], r[0], TARGET_LONG_BITS - 8 + vece); + tcg_gen_trunc_i64_tl(cpu_gpr[a->rt], r[0]); return true; } =20 --=20 2.34.1