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[97.113.183.164]) by smtp.gmail.com with ESMTPSA id g10sm17740595pfe.77.2018.01.05.19.14.15 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 05 Jan 2018 19:14:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references; bh=fglbqt0ZZi+UTUzzw2VU5fDhQFOJREmbY828m0tqWIs=; b=Gmuv36bFxczwpQfR6+K/ek9uS5qSfqNEkmeSP0PSuAlsrMAOp8A1xPbuH4zCsm9kLZ i0dlFyD1o7KAsXDCGQpOSrFGlQ3W7IImEubffOnucoD2IQ8muXfMQ39pTJXBNKh0SwHm CTauTALRQ1OJbTDKqYpulsj4HPR845jQcGOco= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=fglbqt0ZZi+UTUzzw2VU5fDhQFOJREmbY828m0tqWIs=; b=VILOTjSyn25DuyWDPAPhWcgJlMzi6+BbyS+Tp6C7uNkRssdkyVSyzblk+WCeGh90eT unmSjKNFsc9vFlUPqFvwbQba8cbvGyye/qHwskQa4cR8Y8CC/UZ1J+ZvvovFfvhQsQUo Kc8lMzfqwz61mow2x8DIngjbHbjoBcaSxBwxUxTXM5k+phsdZvjWPFlMEQjI2D1UlHiT S9+tXB4To6J0yzIZ6CIaBiraZ6t8P0g08n1tL4GrXTx2jGD4dY60bTYLc8GTAKXmUuxv IOx+V0bnR40fuqDbcYEBEDTyIIElCxcqX7riQavGZ4hamBg1srHmqaQ6ctKijvR4Cxvv AQ1w== X-Gm-Message-State: AKGB3mJ7cfqj3EfHFpf6mbKSa4ks4FV8gwV5by/AB9126F8fJMzkyqLJ 7c1F/NkLaTinZYEYQDkjJANGNuDE/Oc= X-Google-Smtp-Source: ACJfBosOVM2klbhD5aK0Z8UGE19PgFPfb86q1ZLvUA6yGXDKlPyZhJURpCGYuA63myq8oAPM7Ew2WQ== X-Received: by 10.99.114.30 with SMTP id n30mr444841pgc.178.1515208456358; Fri, 05 Jan 2018 19:14:16 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Fri, 5 Jan 2018 19:13:40 -0800 Message-Id: <20180106031346.6650-18-richard.henderson@linaro.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180106031346.6650-1-richard.henderson@linaro.org> References: <20180106031346.6650-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c05::242 Subject: [Qemu-devel] [PATCH v8 17/23] target/arm: Use vector infrastructure for aa64 zip/uzp/trn/xtn 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson --- target/arm/translate-a64.c | 103 +++++++++++++++--------------------------= ---- 1 file changed, 35 insertions(+), 68 deletions(-) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index 55a4902fc2..8769b4505a 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -5576,11 +5576,7 @@ static void disas_simd_zip_trn(DisasContext *s, uint= 32_t insn) int opcode =3D extract32(insn, 12, 2); bool part =3D extract32(insn, 14, 1); bool is_q =3D extract32(insn, 30, 1); - int esize =3D 8 << size; - int i, ofs; - int datasize =3D is_q ? 128 : 64; - int elements =3D datasize / esize; - TCGv_i64 tcg_res, tcg_resl, tcg_resh; + GVecGen3Fn *gvec_fn; =20 if (opcode =3D=3D 0 || (size =3D=3D 3 && !is_q)) { unallocated_encoding(s); @@ -5591,60 +5587,24 @@ static void disas_simd_zip_trn(DisasContext *s, uin= t32_t insn) return; } =20 - tcg_resl =3D tcg_const_i64(0); - tcg_resh =3D tcg_const_i64(0); - tcg_res =3D tcg_temp_new_i64(); - - for (i =3D 0; i < elements; i++) { - switch (opcode) { - case 1: /* UZP1/2 */ - { - int midpoint =3D elements / 2; - if (i < midpoint) { - read_vec_element(s, tcg_res, rn, 2 * i + part, size); - } else { - read_vec_element(s, tcg_res, rm, - 2 * (i - midpoint) + part, size); - } - break; - } - case 2: /* TRN1/2 */ - if (i & 1) { - read_vec_element(s, tcg_res, rm, (i & ~1) + part, size); - } else { - read_vec_element(s, tcg_res, rn, (i & ~1) + part, size); - } - break; - case 3: /* ZIP1/2 */ - { - int base =3D part * elements / 2; - if (i & 1) { - read_vec_element(s, tcg_res, rm, base + (i >> 1), size); - } else { - read_vec_element(s, tcg_res, rn, base + (i >> 1), size); - } - break; - } - default: - g_assert_not_reached(); - } - - ofs =3D i * esize; - if (ofs < 64) { - tcg_gen_shli_i64(tcg_res, tcg_res, ofs); - tcg_gen_or_i64(tcg_resl, tcg_resl, tcg_res); - } else { - tcg_gen_shli_i64(tcg_res, tcg_res, ofs - 64); - tcg_gen_or_i64(tcg_resh, tcg_resh, tcg_res); - } + switch (opcode) { + case 1: /* UZP1/2 */ + gvec_fn =3D part ? tcg_gen_gvec_uzpo : tcg_gen_gvec_uzpe; + break; + case 2: /* TRN1/2 */ + gvec_fn =3D part ? tcg_gen_gvec_trno : tcg_gen_gvec_trne; + break; + case 3: /* ZIP1/2 */ + gvec_fn =3D part ? tcg_gen_gvec_ziph : tcg_gen_gvec_zipl; + break; + default: + g_assert_not_reached(); } =20 - tcg_temp_free_i64(tcg_res); - - write_vec_element(s, tcg_resl, rd, 0, MO_64); - tcg_temp_free_i64(tcg_resl); - write_vec_element(s, tcg_resh, rd, 1, MO_64); - tcg_temp_free_i64(tcg_resh); + gvec_fn(size, vec_full_reg_offset(s, rd), + vec_full_reg_offset(s, rn), + vec_full_reg_offset(s, rm), + is_q ? 16 : 8, vec_full_reg_size(s)); } =20 static void do_minmaxop(DisasContext *s, TCGv_i32 tcg_elt1, TCGv_i32 tcg_e= lt2, @@ -7922,6 +7882,22 @@ static void handle_2misc_narrow(DisasContext *s, boo= l scalar, int destelt =3D is_q ? 2 : 0; int passes =3D scalar ? 1 : 2; =20 + if (opcode =3D=3D 0x12 && !u) { /* XTN, XTN2 */ + tcg_debug_assert(!scalar); + if (is_q) { /* XTN2 */ + tcg_gen_gvec_uzpe(size, vec_reg_offset(s, rd, 1, MO_64), + vec_reg_offset(s, rn, 0, MO_64), + vec_reg_offset(s, rn, 1, MO_64), + 8, vec_full_reg_size(s) - 8); + } else { + tcg_gen_gvec_uzpe(size, vec_reg_offset(s, rd, 0, MO_64), + vec_reg_offset(s, rn, 0, MO_64), + vec_reg_offset(s, rn, 1, MO_64), + 8, vec_full_reg_size(s)); + } + return; + } + if (scalar) { tcg_res[1] =3D tcg_const_i32(0); } @@ -7939,23 +7915,14 @@ static void handle_2misc_narrow(DisasContext *s, bo= ol scalar, tcg_res[pass] =3D tcg_temp_new_i32(); =20 switch (opcode) { - case 0x12: /* XTN, SQXTUN */ + case 0x12: /* , SQXTUN */ { - static NeonGenNarrowFn * const xtnfns[3] =3D { - gen_helper_neon_narrow_u8, - gen_helper_neon_narrow_u16, - tcg_gen_extrl_i64_i32, - }; static NeonGenNarrowEnvFn * const sqxtunfns[3] =3D { gen_helper_neon_unarrow_sat8, gen_helper_neon_unarrow_sat16, gen_helper_neon_unarrow_sat32, }; - if (u) { - genenvfn =3D sqxtunfns[size]; - } else { - genfn =3D xtnfns[size]; - } + genenvfn =3D sqxtunfns[size]; break; } case 0x14: /* SQXTN, UQXTN */ --=20 2.14.3