From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id 9192C3858D38 for ; Tue, 19 Dec 2023 09:45:13 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 9192C3858D38 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 9192C3858D38 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1702979114; cv=none; b=Sj+rryxdq9LF24q3HfIEBdf19jUBqSwAp9zA0GgIFUCeENTo37ucba6J1CkwSbmpw7zceH1tQfQkayeYVRfEUw3jWmtw3HUawI2JfcbNrcUn2lAQn66GnETeFsPLVuML0f6UfpjCb7fPwc/juEC/bER49uotj9+0VggZWHzoSBY= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1702979114; c=relaxed/simple; bh=Wp2CEgWMaDG2dZPcqFNyzrfjvUxtt34Pvl7KRhuuka8=; h=DKIM-Signature:Date:From:To:Subject:Message-ID:MIME-Version; b=jeO7blV0W7W8elNmMRMM9RPU6NoIS50HW7ioTnyAQmMmzkKKta+dEJyYqhRBVtMKVP7rQliyALMw+W3cS3WSWL/KohmVbN79TvT926NNl24uhpqsy+8L5Wjl3KiSP2Efw6ouHMxUqs1zdqFvGeath4WYv+0QAQRZVDHGNZiDTWM= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1702979113; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references; bh=Ro0gIADsGOCRb2oHf3asHsenkcR7Jm6ShIsd/KOioDQ=; b=duckJeRZvhf5CJfP9v1CBVMDKHp4YZesNTbpGX/RjNN4qZSH1GydTmnuZ65CSpMokzQVdK iYLfvchc7munMif8ZPbUaWIrYnWafK10m+pbqDEasPXgY7mK/pTGbclhGs+Cip2JwkPWMm mdI8hmDlD93gqZysmRVRiK9OLamBcU8= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-283-R2B9yl-bMmyFPmo2tQjTzA-1; Tue, 19 Dec 2023 04:45:09 -0500 X-MC-Unique: R2B9yl-bMmyFPmo2tQjTzA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 35F2E1C05129; Tue, 19 Dec 2023 09:45:09 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.192.92]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D02D51C060AF; Tue, 19 Dec 2023 09:45:08 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.17.1/8.17.1) with ESMTPS id 3BJ9j5bV4089458 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Tue, 19 Dec 2023 10:45:05 +0100 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 3BJ9j3Ro4089457; Tue, 19 Dec 2023 10:45:03 +0100 Date: Tue, 19 Dec 2023 10:45:02 +0100 From: Jakub Jelinek To: "juzhe.zhong@rivai.ai" Cc: rguenther , Robin Dapp , gcc-patches , "pan2.li" , "richard.sandiford" , Richard Biener , pinskia Subject: Re: Re: [PATCH] fold-const: Handle AND, IOR, XOR with stepped vectors [PR112971]. Message-ID: Reply-To: Jakub Jelinek References: <097AABD6596FB0C3+2023121906491281154423@rivai.ai> <92p02r8p-46rq-s976-5r8p-s87q0q763465@fhfr.qr> <6FD0A43E2F3E9BD9+202312191735136921653@rivai.ai> MIME-Version: 1.0 In-Reply-To: <6FD0A43E2F3E9BD9+202312191735136921653@rivai.ai> X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE,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: On Tue, Dec 19, 2023 at 05:35:14PM +0800, juzhe.zhong@rivai.ai wrote: > I wonder whether we can simplify the codes as follows :? > if (integer_zerop (arg1) || integer_zerop (arg2)) > step_ok_p = (code == BIT_AND_EXPR || code == BIT_IOR_EXPR > || code == BIT_XOR_EXPR); What about integer_all_onesp (arg1) || integer_all_onesp (arg2) ? (x & -1) == x (x | -1) == -1 (x ^ -1) == ~x even for the VL vectors, no? Jakub