From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.ispras.ru (mail.ispras.ru [83.149.199.84]) by sourceware.org (Postfix) with ESMTPS id 1F25A3858439 for ; Mon, 24 Oct 2022 14:26:58 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 1F25A3858439 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=ispras.ru Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=ispras.ru Received: from [10.10.3.121] (unknown [10.10.3.121]) by mail.ispras.ru (Postfix) with ESMTPS id 8A023419E9F2; Mon, 24 Oct 2022 14:26:55 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 mail.ispras.ru 8A023419E9F2 Date: Mon, 24 Oct 2022 17:26:55 +0300 (MSK) From: Alexander Monakov To: "Kumar, Venkataramanan" cc: Jakub Jelinek , Richard Biener , "Joshi, Tejas Sanjay" , "gcc-patches@gcc.gnu.org" , "honza.hubicka@gmail.com" Subject: RE: [PATCH] [X86_64]: Enable support for next generation AMD Zen4 CPU In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Spam-Status: No, score=-3.0 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,KAM_SHORT,SPF_HELO_NONE,SPF_PASS,TXREP 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: > > > This grew insn-automata.cc from 201502 lines to 639968 lines and the > > > build of the automata (genautomata) to several minutes in my dev tree. > > > > Yeah, in my unoptimized non-bootstrapped development tree genautomata > > now takes over 12 minutes on a fast box, that is simply not acceptable. > > Thank you for notifying us. > > TejasSanjay.Joshi@amd.com has posted a patch for review to fix this (as per Honza's comments). > Ref: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/604144.html By the way, it appears pre-existing znver[123] models are also causing some kind of combinatorial blow-up, but before znver4 it was not a blocking issue: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87832 Alexander