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[174.21.81.121]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2dadbfe46d4sm4084019a91.1.2024.09.07.19.26.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Sep 2024 19:26:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1725762403; x=1726367203; 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=fgxrxszay9VRn5E174A3JWPdCzhUbe6SpMnwMRLmxtGBuiPjzmruzAZGYbwqig0TSK ELPqGje4TE3rIt+qJ33coqFSjCt3XVM+QXs8THuMV9TRE76N72XR0NEJpgfuaMJzXvPD GJWzvVFzsZYmYQCisNPZn6727WdMfQjGyur5Suk4rObtyENKT2I/ALQi4Z3/HpoUFQlf QlKE+nwnu2auCvG4S/qzP01WtdDGeLbNSjXgKyWmsIb+Fa9HN62ry5nyXbs8QBLBPKQQ v7O8WBWMIEF/TBZV0mLH8pYc03eMJO4nKtbSij6FCKb2FdU5rve+CRRLKDG/x4ypRzP0 z7iQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725762403; x=1726367203; 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=a/+CrexhNjvmg5YMWeIb0JCdN+fPcp3P6q02iG+SWZxFco7wS9IqAQfDK8Of6bjeG0 kCgqIBUHcHQJqKjdQbjorp8eJ/y9CxzbmJzSDwW16dGDDxnGqdTFuTimKvYn+nGGyaFb j8TWCFpurTBA8ojj9n+zCTt34QTlyRSlTjTK0d8q5u6g6CPMKs93fpMUO9rEjPt9CFYc gpZ5JlV/a9PNizKO0wWkcFSgHly3Pixfn9XCc3WTYEL8tjAvv8/k5VYyAdXZcc4py53z DXnp8KTea3H5XfbKlqPfZZHEnVAAZUsqNhlrLVo8akQmKw4BOFP3SJd0nnmmIZf++4yw Qrww== X-Gm-Message-State: AOJu0Yzy3/D+aNM9JNJYL/zW1NxJCuto35vqMwksj+8PaTZ8ewIADnsb /cUnIAEsdg6mQab1LqTHxLKBUkga9msXL9MjGEOMNxqmeaQJhUFZiPukIhU3Utcs4qATNGUjnOY b X-Google-Smtp-Source: AGHT+IHU4gZrp8G+R9jE7kfDXii3XHwlmfNyKPRaq86Q9mpD/aG7CPKQ1YUAfSU1k1Snp8PrcFRcbQ== X-Received: by 2002:a17:90a:8c8c:b0:2cb:e429:f525 with SMTP id 98e67ed59e1d1-2dafd09713amr4639854a91.33.1725762402625; Sat, 07 Sep 2024 19:26:42 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: zhiwei_liu@linux.alibaba.com, tangtiancheng.ttc@alibaba-inc.com, liwei1518@gmail.com, bmeng.cn@gmail.com Subject: [PATCH 08/12] tcg/optimize: Optimize bitsel_vec Date: Sat, 7 Sep 2024 19:26:28 -0700 Message-ID: <20240908022632.459477-9-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240908022632.459477-1-richard.henderson@linaro.org> References: <20240908022632.459477-1-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::1030; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1030.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: 1725762490347116600 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