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[90.181.218.29]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a90612df525sm1067909966b.159.2024.09.22.05.01.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Sep 2024 05:01:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1727006481; x=1727611281; 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=jmWnQTiyPxdNf0WqcMfqfLTd4lpnVGqTwk/COH5GHtzlJ71LJcWoqOh2qrAmfOrHjF GGIy2+tQ68hjzerC3XjcnqrsiCKU8JE5LplD3OaNwemQhk/FYjQ371tSc3ip6VJcsrmg oqAdXSdAgFnZDhKuqSSSjAGaV0FT7MIPkzc2ku4NNwGvcAc3gq2vLKZsdIbhksL0ADGj yQeRrfO6rC8LGWOzecI7CvugPxA6IXtq5LkXKxGijX6DrVpo9LCjtzMFy8yfScSKFj99 wC6eEeOydMO4grWOYFVDMDxSq5FjiSL6YF8iLA7LHzHZy4BSH7JgvDyMiUfTmR7btm7m smow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727006481; x=1727611281; 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=hpVwkXe9Flht4f93o97ycufaihfdoV8qnUFQ8eXY4DEq+iGMZpFoHS/zGq13hS2T8c H4mQ55J1VXxjcBsX/ZcH129+f3Cn+YzAEXR0bu7bQu5w9tFHVRWLO4v2FfVTUZp86kE5 YTuCXq+LYWcpB5t1JWfSRw1t1yn7lVaqaK3h6663Lsw+6QBCbLVrUAlIabQYqt4BAnHv g0QMfpnXD4+c4CeoOt/FvGkMK8qeAeUoAgN/kuFOD64c/PpAjmqv9musCyjEa2MYnaau sg2tDK57JtS+gqL01Zfb7r5caPwZHlE0efgJ8miG39ZZOJrv5x/LSXDvKksbDPn+jGJX F/2g== X-Gm-Message-State: AOJu0Yw9b1vAYxH59rQH5+p9uQErBRE9GfDbAxwthTREGB9TLbNZHPc/ H3I1aaMiFQMQxRHHDOWgCNoCZJHuCyqI7YHOm2T/39wy+TpRB3fUi01zhgtsP0R+lo0zIxUC/Gf gW6M= X-Google-Smtp-Source: AGHT+IHOaHZi4k/6+kCpm3Jq8g1Fcn9cZq1iOtykAGBpxiIchbnIM2a1IskeTMztyPDoGpwWpIqdyA== X-Received: by 2002:a17:907:7e85:b0:a8d:caa:7ffb with SMTP id a640c23a62f3a-a90d561babemr746550866b.29.1727006481084; Sun, 22 Sep 2024 05:01:21 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org Subject: [PULL 12/31] tcg/optimize: Optimize bitsel_vec Date: Sun, 22 Sep 2024 14:00:53 +0200 Message-ID: <20240922120112.5067-13-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240922120112.5067-1-richard.henderson@linaro.org> References: <20240922120112.5067-1-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=2a00:1450:4864:20::632; envelope-from=richard.henderson@linaro.org; helo=mail-ej1-x632.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: 1727006797145116600 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