From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by sourceware.org (Postfix) with ESMTP id A28383858D32 for ; Thu, 4 Jan 2024 03:58:32 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org A28383858D32 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=loongson.cn ARC-Filter: OpenARC Filter v1.0.0 sourceware.org A28383858D32 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1704340715; cv=none; b=BYax2U3BzFDnzXhu8/0veObhO/B6Zey3CeO/Ep/wtBOUdJ+4xvnLmvX+aquybEQqoEJzK3Wjwz76MAbrWdqgvx6KLRWlYATfZwcmcPVfuYjAKKEhp+tumjtDpZkWRgQhc3J1ui+tpKEC5KVvJiYlQDVklGM0X0IQPEkeEkz19lM= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1704340715; c=relaxed/simple; bh=OeTXw4k/oCZdIE+KGVVbLgWFZRTsTA/4JXNa1Xh6QBE=; h=Subject:To:From:Message-ID:Date:MIME-Version; b=QQAppvhFxvPlsoiYno0FvPGCSseQnwQ9O9QhH9Cm6EPgznLNiE6cCRlBF0mOkqwDfY2cpA+wSLa6gT0NpbBuhliWgVvw7cvryFHI/gSN23CZf4PcAtI0wROkOg5+JW7L+oYfZKwNQl6w/ZQfhyOnOZvbNU+ITSFY+bKK4Vr6VAg= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from loongson.cn (unknown [10.20.4.107]) by gateway (Coremail) with SMTP id _____8AxnvDgLJZl5tQBAA--.6994S3; Thu, 04 Jan 2024 11:58:24 +0800 (CST) Received: from [10.20.4.107] (unknown [10.20.4.107]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Cxid3gLJZl24YAAA--.1307S3; Thu, 04 Jan 2024 11:58:24 +0800 (CST) Subject: Re: [PATCH 1/2] LoongArch: Add the macro implementation of mcmodel=extreme. To: Xi Ruoyao , gcc-patches@gcc.gnu.org Cc: i@xen0n.name, xuchenghua@loongson.cn References: <20231227084654.20614-1-chenglulu@loongson.cn> <20231227084654.20614-2-chenglulu@loongson.cn> <734aebe3f8159485e2e823699bf987c2f605eaa5.camel@xry111.site> From: chenglulu Message-ID: Date: Thu, 4 Jan 2024 11:58:24 +0800 User-Agent: Mozilla/5.0 (X11; Linux loongarch64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <734aebe3f8159485e2e823699bf987c2f605eaa5.camel@xry111.site> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-CM-TRANSID:AQAAf8Cxid3gLJZl24YAAA--.1307S3 X-CM-SenderInfo: xfkh0wpoxo3qxorr0wxvrqhubq/ X-Coremail-Antispam: 1Uk129KBj9xXoW7XFy8CF45XFWDWr1rAF15KFX_yoWDXrXEg3 y7tr4xuF17JrZavF4xuF1UKF18A3Wqkr9xZrWUXan7Xa4rtrWFqFZ3Was5ZFy7tr98CF17 Ca90q3y5XrykuosvyTuYvTs0mTUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUj1kv1TuYvT s0mT0YCTnIWjqI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUI cSsGvfJTRUUUbakYFVCjjxCrM7AC8VAFwI0_Jr0_Gr1l1xkIjI8I6I8E6xAIw20EY4v20x vaj40_Wr0E3s1l1IIY67AEw4v_JrI_Jryl8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxS w2x7M28EF7xvwVC0I7IYx2IY67AKxVWUCVW8JwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxV WUJVW8JwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6r4UJVWxJr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27w Aqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE 14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvEwIxGrwCYjI0SjxkI62AI1c AE67vIY487MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMxCIbckI1I0E 14v26r1Y6r17MI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4 CE17CEb7AF67AKxVWUAVWUtwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1x MIIF0xvE2Ix0cI8IcVCY1x0267AKxVWUJVW8JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF 4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCTnI WIevJa73UjIFyTuYvjxU25EfUUUUU X-Spam-Status: No, score=-5.9 required=5.0 tests=BAYES_00,BODY_8BITS,KAM_DMARC_STATUS,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: 在 2024/1/4 上午11:51, Xi Ruoyao 写道: > On Wed, 2023-12-27 at 16:46 +0800, Lulu Cheng wrote: >> +(define_insn "movdi_pcrel64" >> + [(set (match_operand:DI 0 "register_operand" "=&r") >> +       (match_operand:DI 1 "symbolic_pcrel64_operand")) >> +  (unspec:DI [(const_int 0)] >> +    UNSPEC_MOV_PCREL64) >> +  (use (reg:DI T3_REGNUM)) >> +  (clobber (reg:DI T3_REGNUM))] > It's better not to hard code $t3 here. We can write > > [(set (match_operand:DI 0 "register_operand" "=r") > (match_operand:DI 1 "symbolic_pcrel64_operand")) > (clobber (match_operand:DI 2 "register_operand "=&r"))] > > And use > > gen_movdi_pcrel64 (operands[0], operands[1], gen_reg_rtx(DImode)) > > in expand. > I tried using (clobber (match_scratch)) when implementing it, but it didn't work. I will try this implementation now, thank you! >> + "TARGET_64BIT" >> + "la.local %0,$r15,%1" >> + [(set_attr "mode" "DI") >> +  (set_attr "length" "5")])