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[174.21.81.121]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71908fe4e7esm3186947b3a.80.2024.09.11.09.50.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Sep 2024 09:50:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1726073457; x=1726678257; 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=tk0wGAYaA1BFCH8Bi5mZsOhd6+SwTodI8yFR1/zj/XA=; b=FlXBPM95djXqNx3Cm/ZUu/skoabuT4/rvdoEIgRp+jdM+Whfwczis24DJyL28ibXAG 3lKAZW0fVBA47XqunI6+DRHrFqWetkE46Nt0dMG/SpR9+ucSj8eUox2KwBApJDggdl40 uu+5tPRBgb2MWZ4lTU68aj5eJFDYsny+U1qQKTGYz1DuOlkNZqjpXMcS8le3lKt2yP7L 0i5taD+z4pOWt8MmSpAwlHyMSgj511YLzovK+p24mddpYx/P/3AchQpN7IFK66gHH7R3 X0tsQtGEJWUExbmR59i0iHe/cg+IIPJo9MjPWUZat1HcHsTvvJeXEkGEkLJhwVcL886b lmVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726073457; x=1726678257; 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=tk0wGAYaA1BFCH8Bi5mZsOhd6+SwTodI8yFR1/zj/XA=; b=vzNMcmEPtAHbo2uHzyZqAQPGjeBjymD3aCAxdt5lUjQ7UuO6umlj0UfLSm222E/6Hs u2adYoeM6YidjhFeh+nq9269pRGqTatODrJGa19VQuBnbh4WJYwDPIXeha644WkivMAw z5O+5+J2jlmdU24Q1P1OieDd16yp0khkCleqZxCdtH67Iz0FswRsJXOUaVW6rAtCUkb0 wGQ37CF/RWtUyEBLMqHrGd9ZfzZdCELrZ8FGUS3ivQa/78ZXqdp+cBjoCdYOfkGRMODh 0vgzglvSb+GVtUviPHEAGNDJTdqcy5+FG2kf3mbeFNivvWwLT61lTkEholKl/DKHXKki mcJg== X-Gm-Message-State: AOJu0YzBVRcvavn+fr99Uy1LDkuD0azLmos+qvM7VsJpU+ZuV3X1UnfV vTFUr3MjHOGu0rnu66/m9SaNoBVtrkLR2Oxf9VbPTUvF/uEWlhJ6xxgkx3IrdoWTvqEaFrUn9xV + X-Google-Smtp-Source: AGHT+IFOMOY//SS+VRTmGq00IjikX+qfk2DEF+o3pPHtEd10lPMxlyL5IBu9kJxGIO4uUzaKC+xIqQ== X-Received: by 2002:a05:6a21:3318:b0:1cf:54bd:393a with SMTP id adf61e73a8af0-1cf5e15780fmr5944984637.37.1726073456480; Wed, 11 Sep 2024 09:50:56 -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 08/18] tcg/optimize: Optimize cmp_vec and cmpsel_vec Date: Wed, 11 Sep 2024 09:50:37 -0700 Message-ID: <20240911165047.1035764-9-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=2607:f8b0:4864:20::529; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x529.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: 1726073572677116600 Content-Type: text/plain; charset="utf-8" Place immediate values second in the comparison. Place destination matches first in the true/false values. All of this mirrors what we do for integer setcond and movcond. Signed-off-by: Richard Henderson --- tcg/optimize.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/tcg/optimize.c b/tcg/optimize.c index cf311790e0..f11f576fd4 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -2422,6 +2422,36 @@ static bool fold_setcond2(OptContext *ctx, TCGOp *op) return tcg_opt_gen_movi(ctx, op, op->args[0], i); } =20 +static bool fold_cmp_vec(OptContext *ctx, TCGOp *op) +{ + /* Canonicalize the comparison to put immediate second. */ + if (swap_commutative(NO_DEST, &op->args[1], &op->args[2])) { + op->args[3] =3D tcg_swap_cond(op->args[3]); + } + return false; +} + +static bool fold_cmpsel_vec(OptContext *ctx, TCGOp *op) +{ + /* If true and false values are the same, eliminate the cmp. */ + if (args_are_copies(op->args[3], op->args[4])) { + return tcg_opt_gen_mov(ctx, op, op->args[0], op->args[3]); + } + + /* Canonicalize the comparison to put immediate second. */ + if (swap_commutative(NO_DEST, &op->args[1], &op->args[2])) { + op->args[5] =3D tcg_swap_cond(op->args[5]); + } + /* + * Canonicalize the "false" input reg to match the destination, + * so that the tcg backend can implement "move if true". + */ + if (swap_commutative(op->args[0], &op->args[4], &op->args[3])) { + op->args[5] =3D tcg_invert_cond(op->args[5]); + } + return false; +} + static bool fold_sextract(OptContext *ctx, TCGOp *op) { uint64_t z_mask, s_mask, s_mask_old; @@ -2928,6 +2958,12 @@ void tcg_optimize(TCGContext *s) case INDEX_op_setcond2_i32: done =3D fold_setcond2(&ctx, op); break; + case INDEX_op_cmp_vec: + done =3D fold_cmp_vec(&ctx, op); + break; + case INDEX_op_cmpsel_vec: + done =3D fold_cmpsel_vec(&ctx, op); + break; CASE_OP_32_64(sextract): done =3D fold_sextract(&ctx, op); break; --=20 2.43.0