From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by sourceware.org (Postfix) with ESMTPS id 492083858D37 for ; Thu, 20 Apr 2023 09:50:56 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 492083858D37 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=suse.de Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 6BEB5219BC; Thu, 20 Apr 2023 09:50:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1681984255; h=from:from:reply-to: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=OXjE3zLsoXRSuQ4kKobxPw6l8AvAqtp7fkEGw+GvAOE=; b=hBxTIXiae8PoSM0CN0qP/r7gchCyoqFp3IZwxpTCQlENh89HR1bXuu3ycV6Ut6Pos4XzBs imYzrvbeB3SuNMAd/gdVm42mGbAOfUi+2ZhZE/LfsC1IqCCsnuR63lwQdtQdvNmv8dO6r6 itronxwdI3qX/w1qFpFNInfkXWYfBr4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1681984255; h=from:from:reply-to: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=OXjE3zLsoXRSuQ4kKobxPw6l8AvAqtp7fkEGw+GvAOE=; b=1t2aeTQ2aVr7rWOnNy/QWRwDyEmxmiAoUV/Tb7k0JOJodoXwFUBC0XstAszcjAsjvGSiq5 3ilK+sZg+2+d3gDQ== Received: from wotan.suse.de (wotan.suse.de [10.160.0.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by relay2.suse.de (Postfix) with ESMTPS id 539A42C141; Thu, 20 Apr 2023 09:50:55 +0000 (UTC) Date: Thu, 20 Apr 2023 09:50:55 +0000 (UTC) From: Richard Biener To: Richard Sandiford cc: "juzhe.zhong@rivai.ai" , gcc-patches , jeffreyalaw Subject: Re: [PATCH] VECT: Add WHILE_LEN pattern for decrement IV support for auto-vectorization In-Reply-To: Message-ID: References: <20230407014741.139387-1-juzhe.zhong@rivai.ai> <5B48D6D344CE6158+202304200553419571591@rivai.ai> <0AAC8392021A279F+2023042016574579562748@rivai.ai> User-Agent: Alpine 2.22 (LSU 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Spam-Status: No, score=-5.0 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,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: On Thu, 20 Apr 2023, Richard Sandiford wrote: > "juzhe.zhong@rivai.ai" writes: > > OK. Thanks Richard. > > So let me conclude: > > 1. Community agree that I should support variable IV in the middle-end. > > 2. We can keep WHILE_LEN pattern when "not only final iteration is partial". > > And I should describe it more clearly in the doc. > > > > I should do these 2 things in the later update patch. > > Sounds good to me, but Richi is the maintainer. But I happily defer to you for designing VL stuff. I suppose it's time to make you maintainer as well ... (you are global reviewer). That said, I will look at an updated patch. Richard.