From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id 7RtAL8kuR2jLYAcAWB0awg (envelope-from ) for ; Mon, 09 Jun 2025 14:58:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=simark.ca; s=mail; t=1749495497; bh=QcqS0SM2SK3TYkfBZPNLYSFJrx6dKwgj7nMK1M9XNlU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=itOR2lGoJpxefcqfsO2wXaNMxX2HU3UinHGypbdxheW19O1ngyASxp+u1eTYvlExB kBCcRmi2IQPQXC3yxQ7lrSqUBusY0KgDNs4fmQuRayWyAtWneOmWSS3yc0w+XFQHeS NqK8qzMLBs3tgs4UEY8rl5wmM0DfJ/juk/MmWO3s= Received: by simark.ca (Postfix, from userid 112) id AD5441E11C; Mon, 9 Jun 2025 14:58:17 -0400 (EDT) X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-9.1 required=5.0 tests=ARC_SIGNED,ARC_VALID,BAYES_00, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,RCVD_IN_VALIDITY_CERTIFIED,RCVD_IN_VALIDITY_RPBL, RCVD_IN_VALIDITY_SAFE autolearn=unavailable autolearn_force=no version=4.0.1 Authentication-Results: simark.ca; dkim=pass (1024-bit key; unprotected) header.d=simark.ca header.i=@simark.ca header.a=rsa-sha256 header.s=mail header.b=MEgV4jrH; dkim=pass (1024-bit key) header.d=simark.ca header.i=@simark.ca header.a=rsa-sha256 header.s=mail header.b=c3jLzD9K; dkim-atps=neutral Received: from server2.sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 2DF161E0C2 for ; Mon, 9 Jun 2025 14:58:17 -0400 (EDT) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id C6FDD3830690 for ; Mon, 9 Jun 2025 18:58:16 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C6FDD3830690 Authentication-Results: sourceware.org; dkim=pass (1024-bit key, unprotected) header.d=simark.ca header.i=@simark.ca header.a=rsa-sha256 header.s=mail header.b=MEgV4jrH; dkim=pass (1024-bit key) header.d=simark.ca header.i=@simark.ca header.a=rsa-sha256 header.s=mail header.b=c3jLzD9K Received: from simark.ca (simark.ca [158.69.221.121]) by sourceware.org (Postfix) with ESMTPS id 6E23A3858C39 for ; Mon, 9 Jun 2025 18:57:48 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 6E23A3858C39 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=simark.ca Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=simark.ca ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 6E23A3858C39 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=158.69.221.121 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1749495468; cv=none; b=p/Bt5glNxdMwhnrpebRqFzquwEpXLHSxWOsJT9FHwwYxLdfnWT+KwPZ7sJ14BAq1z/kKSgLBmb9AROD3f4uVv4tNulfCwdGZkVx9qcw2qqOvKkTikTXvFn6WwM6bTczvxo5JAUgqGBl+xt3Ed4UiA8kApLeAPqpqv+7sHOGTbEA= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1749495468; c=relaxed/simple; bh=QcqS0SM2SK3TYkfBZPNLYSFJrx6dKwgj7nMK1M9XNlU=; h=DKIM-Signature:DKIM-Signature:Message-ID:Date:MIME-Version: Subject:To:From; b=d13hMlGy6BamFNVPHC2e3SCkpMPf9RSHWG0QD+uA0SP6cjngx1LJDW75eYJb+8gHHFr8ZJvzCH0zv6DUa8VEyi9vf6GWoXzD8940z1dkUhD1Vni5WtYmPYqbJdA1FdWTBByWUtc9onlEjCnpX27HYofv0cY+g+d9rcGhSxs9G5g= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6E23A3858C39 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=simark.ca; s=mail; t=1749495468; bh=QcqS0SM2SK3TYkfBZPNLYSFJrx6dKwgj7nMK1M9XNlU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=MEgV4jrH+qfqG+DDZqJc4pR8yLI6i6KycQjrJYB0YtAMmIeO3ldhkOLLqwA/q0p7I LD458e4kLihMrvEUAaTuc2Y7/Fe8ObAKfAqxG1/5dpdoNqkStX63McjvkBxX5NMtcc 6/mjCAquSZvEQg5kPq36BVZrqbfUubDn5aR4Z4Yw= Received: by simark.ca (Postfix, from userid 112) id 0F7301E11C; Mon, 9 Jun 2025 14:57:48 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=simark.ca; s=mail; t=1749495467; bh=QcqS0SM2SK3TYkfBZPNLYSFJrx6dKwgj7nMK1M9XNlU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=c3jLzD9KqUn0oshjveAXjbNvN37iMP2siM+jdrBDmBH5GHJkD1IQ5DezS16yzppt4 W+gYAF+/8Z9nJ/T9ytsQqvvnEGlyVv9sLFAjZTpSbhDXjFI6xfda+owSWPbU9z1nhN TbBM1fQSoNAeJIO7+ZKUiFystCgmpb+9dyH+4MjA= Received: from [172.16.0.192] (192-222-132-26.qc.cable.ebox.net [192.222.132.26]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPSA id F2A231E0C2; Mon, 9 Jun 2025 14:57:46 -0400 (EDT) Message-ID: Date: Mon, 9 Jun 2025 14:57:46 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] or1k: Fix ICE in libgcc caused by recent validate_subreg changes To: Stafford Horne , GDB patches Cc: Linux OpenRISC References: <20250609185222.1538148-1-shorne@gmail.com> Content-Language: fr From: Simon Marchi In-Reply-To: <20250609185222.1538148-1-shorne@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org On 6/9/25 2:52 PM, Stafford Horne wrote: > After commit eb2ea476db2 ("emit-rtl: Allow extra checks for > paradoxical subregs [PR119966]") paradoxical subregs or the OpenRISC > condition flag register (reg:BI sr_f) are no longer allowed. > > This causes and ICE in the ce1 pass which tries to get the or1k flag > register into an SI register, which is no longer possible. > > Adjust or1k_can_change_mode_class to allow changing the or1k flag reg to > SI mode which in turn allows paradoxical subregs to bre generated again. > > gcc/ChangeLog: > > PR or1k/120587 > * config/or1k/or1k.cc (or1k_can_change_mode_class): Allow > changing flags mode from BI to SI to allow for paradoxical > subregs. Wrong mailing list I think (gcc, not gdb). Simon