From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7768 invoked by alias); 8 Jul 2011 17:07:57 -0000 Received: (qmail 7758 invoked by uid 22791); 8 Jul 2011 17:07:56 -0000 X-SWARE-Spam-Status: No, hits=-6.3 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 08 Jul 2011 17:07:41 +0000 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p68H7e7t016958 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 8 Jul 2011 13:07:40 -0400 Received: from greed.delorie.com (ovpn-113-153.phx2.redhat.com [10.3.113.153]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id p68H7cPk016693 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 8 Jul 2011 13:07:40 -0400 Received: from greed.delorie.com (greed.delorie.com [127.0.0.1]) by greed.delorie.com (8.14.4/8.14.4) with ESMTP id p68H7bCi003028 for ; Fri, 8 Jul 2011 13:07:37 -0400 Received: (from dj@localhost) by greed.delorie.com (8.14.4/8.14.4/Submit) id p68H7aGe003027; Fri, 8 Jul 2011 13:07:36 -0400 Date: Fri, 08 Jul 2011 17:07:00 -0000 Message-Id: <201107081707.p68H7aGe003027@greed.delorie.com> From: DJ Delorie To: gcc@gcc.gnu.org Subject: frame pointer must be single register? X-IsSubscribed: yes Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org X-SW-Source: 2011-07/txt/msg00101.txt.bz2 Is there an unwritten rule that the frame pointer must be a single hard register? I'm working on a port where $fp is a register pair, and I've seen gcc allocate the second register to other things (causing all sorts of problems).