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([203.56.128.103]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-70b7ecd603bsm7330404b3a.219.2024.07.16.23.09.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Jul 2024 23:09:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1721196556; x=1721801356; darn=nongnu.org; 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=f2RBO2LUzalMayDyUmUonTOmlQcuZjzRHo/lvECYNRo=; b=vWtC2H25NXyYECW+9mQtMomdlMIfNIsnNRxSNn3UNFrb8CQ+bWy0H7DqRNJBLbrW3I GQFPzFN3P2Nc+a7r/tbHJWVWhdW7sj2dNKGdo7qyg+nLd96jNYKN+UT2vGBnbMuKnMkU vPf8s/cTZhHploHIvm3OAr8wkOhyhm8oD19pxS/mCAFgKPJa21oo9dzCAAOQnAF5L5wm Ksw3/uGNcuQHto8GUW5Rxme04GwPMS3ESTmZXJjnzZi+gqRUDT9mLX9lsfmU+po5wUso uF4edj7BQSokc06jl9/OfeYB/Pcc84CI/+upTG2zyPaOtk/IPi7smB1z6adAgOQ1ebgW 8gew== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721196556; x=1721801356; 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=f2RBO2LUzalMayDyUmUonTOmlQcuZjzRHo/lvECYNRo=; b=D6MLVqWXEz9lusKhW4LSD+OM9/bK8eEvG2n7borPzekXEhdUzskGoZeT9tsZTqhJDa jr634xf4Imp4hA79YoQd9az1eSxlRwv3lzfwlLq+MzkfRwrZ6Ot8xTVjT6tOBMzEx3ZE KO8PCsLm5Rdf94bDReZ6Cha0WkZuqwHvhSgDvJms3v8frqmlayURFoq6hjC8TrCtPZVk DF76Yj6Aa490BPGPQ+MuDRCot+Zr46nRihaAUZ6ove9AFM/yZbmwgQMC5bUYjOEI7/8h 0/K8A4A9nb3/0OM9xqI2Nr3gV1Vdln2t3WQ8arFO4dSfVjsMZTdhllqQSlLLeYhYMEEy ARGw== X-Gm-Message-State: AOJu0Yz34lTN73GXki94U3lmg0aW92ay+Vuk9gC8hZbFfHH4wSeXQHBZ DFExJdj8Gl9Br8tpSuXDEgjIZQf9juLFXWwF1TS7BZoQCZYG8ATFTDgQI/5FYAhtqYNKnUSKDTD If8k= X-Google-Smtp-Source: AGHT+IErn86g8LvF0rU3MJBgaqD9phV1VMJgjdNToPQyboie7pkup7VciXN52y7llZs7uJDO5rqhCA== X-Received: by 2002:a05:6808:1509:b0:3d9:e1d1:1580 with SMTP id 5614622812f47-3dad1f494a2mr825077b6e.21.1721196556031; Tue, 16 Jul 2024 23:09:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH 02/17] target/arm: Convert EXT to decodetree Date: Wed, 17 Jul 2024 16:08:48 +1000 Message-ID: <20240717060903.205098-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240717060903.205098-1-richard.henderson@linaro.org> References: <20240717060903.205098-1-richard.henderson@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=2607:f8b0:4864:20::231; envelope-from=richard.henderson@linaro.org; helo=mail-oi1-x231.google.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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: 1721196642934116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- target/arm/tcg/translate-a64.c | 121 +++++++++++++-------------------- target/arm/tcg/a64.decode | 5 ++ 2 files changed, 53 insertions(+), 73 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index e4c8a20f39..6ca24d9842 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -6541,6 +6541,54 @@ static bool trans_FCSEL(DisasContext *s, arg_FCSEL *= a) return true; } =20 +/* + * Advanced SIMD Extract + */ + +static bool trans_EXT_d(DisasContext *s, arg_EXT_d *a) +{ + if (fp_access_check(s)) { + TCGv_i64 lo =3D read_fp_dreg(s, a->rn); + if (a->imm !=3D 0) { + TCGv_i64 hi =3D read_fp_dreg(s, a->rm); + tcg_gen_extract2_i64(lo, lo, hi, a->imm * 8); + } + write_fp_dreg(s, a->rd, lo); + } + return true; +} + +static bool trans_EXT_q(DisasContext *s, arg_EXT_q *a) +{ + TCGv_i64 lo, hi; + int pos =3D (a->imm & 7) * 8; + int elt =3D a->imm >> 3; + + if (!fp_access_check(s)) { + return true; + } + + lo =3D tcg_temp_new_i64(); + hi =3D tcg_temp_new_i64(); + + read_vec_element(s, lo, a->rn, elt, MO_64); + elt++; + read_vec_element(s, hi, elt & 2 ? a->rm : a->rn, elt & 1, MO_64); + elt++; + + if (pos !=3D 0) { + TCGv_i64 hh =3D tcg_temp_new_i64(); + tcg_gen_extract2_i64(lo, lo, hi, pos); + read_vec_element(s, hh, a->rm, elt & 1, MO_64); + tcg_gen_extract2_i64(hi, hi, hh, pos); + } + + write_vec_element(s, lo, a->rd, 0, MO_64); + write_vec_element(s, hi, a->rd, 1, MO_64); + clear_vec_high(s, true, a->rd); + return true; +} + /* * Floating-point data-processing (3 source) */ @@ -8849,78 +8897,6 @@ static void disas_data_proc_fp(DisasContext *s, uint= 32_t insn) } } =20 -/* EXT - * 31 30 29 24 23 22 21 20 16 15 14 11 10 9 5 4 0 - * +---+---+-------------+-----+---+------+---+------+---+------+------+ - * | 0 | Q | 1 0 1 1 1 0 | op2 | 0 | Rm | 0 | imm4 | 0 | Rn | Rd | - * +---+---+-------------+-----+---+------+---+------+---+------+------+ - */ -static void disas_simd_ext(DisasContext *s, uint32_t insn) -{ - int is_q =3D extract32(insn, 30, 1); - int op2 =3D extract32(insn, 22, 2); - int imm4 =3D extract32(insn, 11, 4); - int rm =3D extract32(insn, 16, 5); - int rn =3D extract32(insn, 5, 5); - int rd =3D extract32(insn, 0, 5); - int pos =3D imm4 << 3; - TCGv_i64 tcg_resl, tcg_resh; - - if (op2 !=3D 0 || (!is_q && extract32(imm4, 3, 1))) { - unallocated_encoding(s); - return; - } - - if (!fp_access_check(s)) { - return; - } - - tcg_resh =3D tcg_temp_new_i64(); - tcg_resl =3D tcg_temp_new_i64(); - - /* Vd gets bits starting at pos bits into Vm:Vn. This is - * either extracting 128 bits from a 128:128 concatenation, or - * extracting 64 bits from a 64:64 concatenation. - */ - if (!is_q) { - read_vec_element(s, tcg_resl, rn, 0, MO_64); - if (pos !=3D 0) { - read_vec_element(s, tcg_resh, rm, 0, MO_64); - tcg_gen_extract2_i64(tcg_resl, tcg_resl, tcg_resh, pos); - } - } else { - TCGv_i64 tcg_hh; - typedef struct { - int reg; - int elt; - } EltPosns; - EltPosns eltposns[] =3D { {rn, 0}, {rn, 1}, {rm, 0}, {rm, 1} }; - EltPosns *elt =3D eltposns; - - if (pos >=3D 64) { - elt++; - pos -=3D 64; - } - - read_vec_element(s, tcg_resl, elt->reg, elt->elt, MO_64); - elt++; - read_vec_element(s, tcg_resh, elt->reg, elt->elt, MO_64); - elt++; - if (pos !=3D 0) { - tcg_gen_extract2_i64(tcg_resl, tcg_resl, tcg_resh, pos); - tcg_hh =3D tcg_temp_new_i64(); - read_vec_element(s, tcg_hh, elt->reg, elt->elt, MO_64); - tcg_gen_extract2_i64(tcg_resh, tcg_resh, tcg_hh, pos); - } - } - - write_vec_element(s, tcg_resl, rd, 0, MO_64); - if (is_q) { - write_vec_element(s, tcg_resh, rd, 1, MO_64); - } - clear_vec_high(s, is_q, rd); -} - /* TBL/TBX * 31 30 29 24 23 22 21 20 16 15 14 13 12 11 10 9 5 4 = 0 * +---+---+-------------+-----+---+------+---+-----+----+-----+------+---= ---+ @@ -11818,7 +11794,6 @@ static const AArch64DecodeTable data_proc_simd[] = =3D { { 0x0f000400, 0x9f800400, disas_simd_shift_imm }, { 0x0e000000, 0xbf208c00, disas_simd_tb }, { 0x0e000800, 0xbf208c00, disas_simd_zip_trn }, - { 0x2e000000, 0xbf208400, disas_simd_ext }, { 0x5e200800, 0xdf3e0c00, disas_simd_scalar_two_reg_misc }, { 0x5f000400, 0xdf800400, disas_simd_scalar_shift_imm }, { 0x0e780800, 0x8f7e0c00, disas_simd_two_reg_misc_fp16 }, diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index 2922de700c..05927fade6 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -1136,3 +1136,8 @@ FMADD 0001 1111 .. 0 ..... 0 ..... ..... ..= ... @rrrr_hsd FMSUB 0001 1111 .. 0 ..... 1 ..... ..... ..... @rrrr_hsd FNMADD 0001 1111 .. 1 ..... 0 ..... ..... ..... @rrrr_hsd FNMSUB 0001 1111 .. 1 ..... 1 ..... ..... ..... @rrrr_hsd + +# Advanced SIMD Extract + +EXT_d 0010 1110 00 0 rm:5 00 imm:3 0 rn:5 rd:5 +EXT_q 0110 1110 00 0 rm:5 0 imm:4 0 rn:5 rd:5 --=20 2.43.0