From patchwork Mon Jan 28 10:06:16 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nick Clifton X-Patchwork-Id: 216152 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) by ozlabs.org (Postfix) with SMTP id 5BA262C007C for ; Mon, 28 Jan 2013 21:10:44 +1100 (EST) Comment: DKIM? See http://www.dkim.org DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=gcc.gnu.org; s=default; x=1359972645; h=Comment: DomainKey-Signature:Received:Received:Received:Received:Received: From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type: Mailing-List:Precedence:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:Sender:Delivered-To; bh=7Ftwyvbwf2lRuyInyEPY 456Lz6o=; b=o8bRlq701soJyUk6UeRGMqwfozMgLSxIMq7xQNhNQxhR4s2+vrqC XwZDhSbO8SQivolX+7RFvUHuCBrzXlSqkgd07EAylM92A2kDac4ihKu4JHBLmk93 g31Q1SFW4JYGPdZ1R7bLOnpQ4STWpebrJGySUwjdgBj84XoPXkaD89M= Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=gcc.gnu.org; h=Received:Received:X-SWARE-Spam-Status:X-Spam-Check-By:Received:Received:Received:From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type:X-IsSubscribed:Mailing-List:Precedence:List-Id:List-Unsubscribe:List-Archive:List-Post:List-Help:Sender:Delivered-To; b=kFSI2Ho4BI7H6NMZySdHr9t5BhlEQUX9xkCl0OZ/7Ck8pf9Xzg0ezfIiWVZ2OE tjJLZuZkePM3XWy6gqcQPe+3AeRpkG0RK3buxdyAoRHxIPIKnrDmUj319it1vTaN GtG5iwcEK80+0t25Hgg0y+Z2gBSDN5SlVHiJrvbUXnzYY=; Received: (qmail 8430 invoked by alias); 28 Jan 2013 10:10:38 -0000 Received: (qmail 8416 invoked by uid 22791); 28 Jan 2013 10:10:36 -0000 X-SWARE-Spam-Status: No, hits=-6.3 required=5.0 tests=AWL, BAYES_00, KHOP_RCVD_UNTRUST, KHOP_SPAMHAUS_DROP, RCVD_IN_DNSWL_HI, RCVD_IN_HOSTKARMA_W, RP_MATCHES_RCVD, SPF_HELO_PASS 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; Mon, 28 Jan 2013 10:10:29 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r0SAAQBK018705 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 28 Jan 2013 05:10:26 -0500 Received: from Cadeux.redhat.com (vpn1-6-69.ams2.redhat.com [10.36.6.69]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r0SAA4M7030163 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Mon, 28 Jan 2013 05:10:07 -0500 From: Nick Clifton To: dj@redhat.com Cc: gcc-patches@gcc.gnu.org Subject: RFA: RL78: Allow SP to be used as a base register Date: Mon, 28 Jan 2013 10:06:16 +0000 Message-ID: <87k3qxhbaf.fsf@redhat.com> MIME-Version: 1.0 X-IsSubscribed: yes Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Delivered-To: mailing list gcc-patches@gcc.gnu.org Hi DJ, Please may I apply the patch below. It fixes the RL78 backend so that the stack register can be used as a base address register. Tested with no regressions on an rl78-elf toolchain. Cheers Nick PS. I am currently investigating allow r8-r15 to be used as base registers. gcc/ChangeLog 2013-01-28 Nick Clifton * config/rl78/rl78.c (rl78_regno_mode_code_ok_for_base_p): Allow SP_REG. Index: gcc/config/rl78/rl78.c =================================================================== --- gcc/config/rl78/rl78.c (revision 195461) +++ gcc/config/rl78/rl78.c (working copy) @@ -769,7 +769,7 @@ addr_space_t address_space ATTRIBUTE_UNUSED, int outer_code ATTRIBUTE_UNUSED, int index_code) { - if (regno < 24 && regno >= 16) + if (regno <= SP_REG && regno >= 16) return true; if (index_code == REG) return (regno == HL_REG);