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[174.21.81.121]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71908fe4e7esm3186947b3a.80.2024.09.11.09.50.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Sep 2024 09:50:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1726073458; x=1726678258; 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=+zeN6h7OSkzIznAtGXkS2TM05Vzv6xYEK4cYNsvDB5Y=; b=aSuj+BuU9IXLkS1fISfjs6vBo67MaHDFyv2kTvaGry/gL/ML4xgQKUXXvbjWLDgm3j huoCk8RY37Gz7AKisSAe2hPCBr4rtXeLZuVVXNMbdAf6p5Nj98v7HMOlo7L806nJ7DSa F7+NMGqF89SQBb2Dm3TdZwXqhbqdMnmB+U4Sn9ZdNg9RWV6glagu794uU9FT8DTA0oRd yTpQO9l+vSKR0Dy2yDiYTrmTn9as1wMEP6N9GgT3Tzmeq/hapUcCl/EXsJcnVYLTnH57 zm2zLmUbUTOnNlf+XvYyFIM2c0AJIro/qg2tCrXpDiDTdS1yKQxiZFw61TiQuj49FjK4 wxdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726073458; x=1726678258; 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=+zeN6h7OSkzIznAtGXkS2TM05Vzv6xYEK4cYNsvDB5Y=; b=WR2vAofLfQ5Zv9xZ8sT2P60XbQm5J6igtIfpAOx9pmkQHw4446+UmVcq2339K62UOy wS/yD7jls7KO3+x0ATmz5V6LcnQAs4HNx+GhY7EMUF0VgeXD9N6zDHWB3bvWiebhLlOl 7QNlBM1YK2jkUS3W9Gtr7pnwHzkW7ut6gYSZI5EI+wwYx+94fC0FsOoiP3OMpfbK3dp6 3toaLbGmX3eJRTWy8c2Qo0zP4sSQtTJw3x13lJItpcU0yfscmK0DEq+s/N5YC9dkSx3K BEZQ5he+Z31uoi/B2mkuHevH+ZZnqhc6pXFepzmqstcWv6LGl2kV+l5W3LwvdnCGhzQc RtXA== X-Gm-Message-State: AOJu0YwYLgsb1gzkPD+KDgAhWpXHsclCfa8k76yCEjgjvIJ/DdeNrUBt kOH+p5XdOcsxDnJntS8Lho6sDDCGJ3t3ZGe2NtbFbpaswuNJcXHmVFijUiUXqiO0WnQDc8MBhAB 1 X-Google-Smtp-Source: AGHT+IHuRXHhtD77WFfmeAFubyLtFkBWZJiGbfZsyo4rs84lAxbagniW6JV/l62Eq+sNyVxProCHuA== X-Received: by 2002:a05:6870:288e:b0:278:234e:6e3f with SMTP id 586e51a60fabf-27c1b53e12emr2798404fac.25.1726073457524; Wed, 11 Sep 2024 09:50:57 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: zhiwei_liu@linux.alibaba.com, tangtiancheng.ttc@alibaba-inc.com, philmd@linaro.org Subject: [PATCH v2 09/18] tcg/optimize: Optimize bitsel_vec Date: Wed, 11 Sep 2024 09:50:38 -0700 Message-ID: <20240911165047.1035764-10-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240911165047.1035764-1-richard.henderson@linaro.org> References: <20240911165047.1035764-1-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=2001:4860:4864:20::33; envelope-from=richard.henderson@linaro.org; helo=mail-oa1-x33.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: 1726073510578116600 Content-Type: text/plain; charset="utf-8" Fold matching true/false operands. Fold true/false operands with 0/-1 to simpler logicals. Signed-off-by: Richard Henderson --- tcg/optimize.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/tcg/optimize.c b/tcg/optimize.c index f11f576fd4..e9ef16b3c6 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -2737,6 +2737,61 @@ static bool fold_xor(OptContext *ctx, TCGOp *op) return fold_masks(ctx, op); } =20 +static bool fold_bitsel_vec(OptContext *ctx, TCGOp *op) +{ + /* If true and false values are the same, eliminate the cmp. */ + if (args_are_copies(op->args[2], op->args[3])) { + return tcg_opt_gen_mov(ctx, op, op->args[0], op->args[2]); + } + + if (arg_is_const(op->args[2]) && arg_is_const(op->args[3])) { + uint64_t tv =3D arg_info(op->args[2])->val; + uint64_t fv =3D arg_info(op->args[3])->val; + + if (tv =3D=3D -1 && fv =3D=3D 0) { + return tcg_opt_gen_mov(ctx, op, op->args[0], op->args[1]); + } + if (tv =3D=3D 0 && fv =3D=3D -1) { + if (TCG_TARGET_HAS_not_vec) { + op->opc =3D INDEX_op_not_vec; + return fold_not(ctx, op); + } else { + op->opc =3D INDEX_op_xor_vec; + op->args[2] =3D arg_new_constant(ctx, -1); + return fold_xor(ctx, op); + } + } + } + if (arg_is_const(op->args[2])) { + uint64_t tv =3D arg_info(op->args[2])->val; + if (tv =3D=3D -1) { + op->opc =3D INDEX_op_or_vec; + op->args[2] =3D op->args[3]; + return fold_or(ctx, op); + } + if (tv =3D=3D 0 && TCG_TARGET_HAS_andc_vec) { + op->opc =3D INDEX_op_andc_vec; + op->args[2] =3D op->args[1]; + op->args[1] =3D op->args[3]; + return fold_andc(ctx, op); + } + } + if (arg_is_const(op->args[3])) { + uint64_t fv =3D arg_info(op->args[3])->val; + if (fv =3D=3D 0) { + op->opc =3D INDEX_op_and_vec; + return fold_and(ctx, op); + } + if (fv =3D=3D -1 && TCG_TARGET_HAS_orc_vec) { + op->opc =3D INDEX_op_orc_vec; + op->args[2] =3D op->args[1]; + op->args[1] =3D op->args[3]; + return fold_orc(ctx, op); + } + } + return false; +} + /* Propagate constants and copies, fold constant expressions. */ void tcg_optimize(TCGContext *s) { @@ -2964,6 +3019,9 @@ void tcg_optimize(TCGContext *s) case INDEX_op_cmpsel_vec: done =3D fold_cmpsel_vec(&ctx, op); break; + case INDEX_op_bitsel_vec: + done =3D fold_bitsel_vec(&ctx, op); + break; CASE_OP_32_64(sextract): done =3D fold_sextract(&ctx, op); break; --=20 2.43.0