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[174.21.75.75]) by smtp.gmail.com with ESMTPSA id b8sm5228232pfv.56.2021.10.28.21.37.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Oct 2021 21:37:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=cdbRxhQ1wpUhR1+s4AARw22mXFf4Uzb2BWNb0AuXuG8=; b=QZVZRr1oLfQ5uDGfVtoInQYUzeVzaXlhm35beqrq3iS0cRcsAtBh/kmQfkGY+khrmL YnTcO6mXhC8OphJoXzndfwhTPgzSdL8rmBI8Wnq4cFZ6dwZ4Qerg6ZupcuUo4IjNvo9W rXhul2KjPOR4iPkB2VzXj0SAEUtu5IK0CQoJpOiXvyhuw3nyCADe1djcEfU/m3T3oe6q XmsKzMQ75n1QAAC+84D1x9DmphpgmFruwQM2R5xQa4lden0JKCNcUE6kPS79gFgAIzEw L/Az5gOf0FV8KAOxH4AHg8o9DtZu3ZHeHYyhoVNM2tfetSGvwM+YKxto9BSIZMPHBLyV jhLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=cdbRxhQ1wpUhR1+s4AARw22mXFf4Uzb2BWNb0AuXuG8=; b=CzS48CKPejKlE9V+uQoqr/ZL8506lH2deQsRT7q3PWFUY+EVgCpdCLVlZ+U0pxpSqk HuDDuT42HLbBBV8hQfYubJx/JWfzawJ0fBWfjrUUB3qipgPAyLIRrASBRR8++4m35VeR ZSNBbolmROXeBlmgnj47OdvNqhs00BD7/MG+wTfk3/74/kQVWy1FS6rZyo5/QidESw9m 1u8OdigXkZshflEaW34P+c1haYWJ6TjjY1IvQZFSZnWBunVmABhmHuhydn4JS8iQATeS Kv3WqaBV2wk4CX6FBw6W4zeqLOeXIIrydZIUKcsNBCRjVVKl5vWrTikpxzpWsTr1c3Xb c9Yw== X-Gm-Message-State: AOAM5320wd9QB04hWQs5seEDCSAsO+RgVPrBuOFuDfCAmiJawwTV/dnd zildpLperGRJ9Dzx1wjlmLvIilwnelbfRg== X-Google-Smtp-Source: ABdhPJzxisKO+L0S40r4VynYc4FLaUgi7MDdOvSEcd5eXUBUD7mPBPVn6R6L7zpHtMgspMqdqVQmYQ== X-Received: by 2002:a63:af44:: with SMTP id s4mr6496780pgo.219.1635482232254; Thu, 28 Oct 2021 21:37:12 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PULL v2 51/60] tcg/optimize: Use fold_xi_to_x for div Date: Thu, 28 Oct 2021 21:33:20 -0700 Message-Id: <20211029043329.1518029-52-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211029043329.1518029-1-richard.henderson@linaro.org> References: <20211029043329.1518029-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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::52a; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52a.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Luis Pires , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1635485267942100001 Recognize the identity function for division. Suggested-by: Luis Pires Reviewed-by: Luis Pires Reviewed-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Richard Henderson --- tcg/optimize.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tcg/optimize.c b/tcg/optimize.c index 907049fb06..f8b0709157 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1218,7 +1218,11 @@ static bool fold_deposit(OptContext *ctx, TCGOp *op) =20 static bool fold_divide(OptContext *ctx, TCGOp *op) { - return fold_const2(ctx, op); + if (fold_const2(ctx, op) || + fold_xi_to_x(ctx, op, 1)) { + return true; + } + return false; } =20 static bool fold_dup(OptContext *ctx, TCGOp *op) --=20 2.25.1