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([2602:47:d483:7301:2c08:e710:4459:46f1]) by smtp.gmail.com with ESMTPSA id e16-20020a17090301d000b001ab2b4105ddsm7234549plh.60.2023.08.21.09.19.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Aug 2023 09:19:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1692634748; x=1693239548; 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=LeRwmoZj3gayyKtebRoC0JW2YuHlKTaNGyIqgqME+tw=; b=AWHYctkqAfQRB+kLjK7K2oY+ra01tdCFC9xxKekA+mPYcQE76r5bW6IlzQOmijDxJC ju+0pZliqjWDKqZ7UcpU5P0y9cei/aVzXFrsmqiBuOOGHM3ySSjwZRXTq8CMFx7LfBwj EwexEoh7qCFsPu8eEIleqjzGU6mtN9IoOkjRt0ey5Zrl31Jd5TJTYHWDE3BQgnou47Wz oefVoXl2qlWumUKem46DhcDtQfIjy4HYvy2Q2D/ebb7ONzUpVEodXRVAiJUbvIDL5j4d ypnMvbGwp/m/XXlbW4e7SaOHIqHH4NpDOY03RXDg638ogQbl/vWd5UZzP/T267aUbBYx 02+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692634748; x=1693239548; 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=LeRwmoZj3gayyKtebRoC0JW2YuHlKTaNGyIqgqME+tw=; b=fpoIUX1UvgACRQ3sruSlTg3KxiPiztd2M8hCMgHm2sZuavA5uF4ZeaEOusvDXkqC8s G8+oe4y4OYJLxRYfdCvky/wkxRRZkCr6PlomIZ2AZrXmDm4/ONkbHi+c9sYzDAIzv7sO gX1F6GAjp3guVv6Xob5OVypKaCB8WHpJRzQZudJFnD+KNinqc6wDR9g2EmJT2Mula+nn 1cG2cOnLvsQlIwpesmeIdRHKqe9eM6yuop3qNZz/NUPLPDE9ZmYFU2D64VHHsgrIzfNo PW81Y9IUmN2oiDkvnQAl7P6A7WiBjqa0Kc0RZ3Lk3m+PISXZzYzJjJ0oSf7kG3eu9M2E Ja9w== X-Gm-Message-State: AOJu0YzkktU3RoyL3/mZjnxzix+uzEnDReugotyM/IPtL4ZTQ1+ZGFdo k4XdFqsLu/Y73jW2q3cKLeX2QTlnLP5tkW5opv0= X-Google-Smtp-Source: AGHT+IGx1XomcA9TYqvoTlzaXLNzAQw3J9A/np8/qypf3+woVfJ4IfdnzMgYgS0urPeXJjvu9Na4qQ== X-Received: by 2002:a05:6a20:3945:b0:140:3554:3f44 with SMTP id r5-20020a056a20394500b0014035543f44mr10294183pzg.22.1692634748425; Mon, 21 Aug 2023 09:19:08 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: berrange@redhat.com, ardb@kernel.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Subject: [PATCH v3 14/19] target/arm: Use clmul_64 Date: Mon, 21 Aug 2023 09:18:48 -0700 Message-Id: <20230821161854.419893-15-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230821161854.419893-1-richard.henderson@linaro.org> References: <20230821161854.419893-1-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::530; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x530.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: 1692634912651100001 Use generic routine for 64-bit carry-less multiply. Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- target/arm/tcg/vec_helper.c | 22 ++++------------------ 1 file changed, 4 insertions(+), 18 deletions(-) diff --git a/target/arm/tcg/vec_helper.c b/target/arm/tcg/vec_helper.c index ffb4b44ce4..1f93510b85 100644 --- a/target/arm/tcg/vec_helper.c +++ b/target/arm/tcg/vec_helper.c @@ -2003,28 +2003,14 @@ void HELPER(gvec_pmul_b)(void *vd, void *vn, void *= vm, uint32_t desc) */ void HELPER(gvec_pmull_q)(void *vd, void *vn, void *vm, uint32_t desc) { - intptr_t i, j, opr_sz =3D simd_oprsz(desc); + intptr_t i, opr_sz =3D simd_oprsz(desc); intptr_t hi =3D simd_data(desc); uint64_t *d =3D vd, *n =3D vn, *m =3D vm; =20 for (i =3D 0; i < opr_sz / 8; i +=3D 2) { - uint64_t nn =3D n[i + hi]; - uint64_t mm =3D m[i + hi]; - uint64_t rhi =3D 0; - uint64_t rlo =3D 0; - - /* Bit 0 can only influence the low 64-bit result. */ - if (nn & 1) { - rlo =3D mm; - } - - for (j =3D 1; j < 64; ++j) { - uint64_t mask =3D -((nn >> j) & 1); - rlo ^=3D (mm << j) & mask; - rhi ^=3D (mm >> (64 - j)) & mask; - } - d[i] =3D rlo; - d[i + 1] =3D rhi; + Int128 r =3D clmul_64(n[i + hi], m[i + hi]); + d[i] =3D int128_getlo(r); + d[i + 1] =3D int128_gethi(r); } clear_tail(d, opr_sz, simd_maxsz(desc)); } --=20 2.34.1