From patchwork Thu Nov 4 12:47:43 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joern Rennecke X-Patchwork-Id: 70125 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 484D71007D2 for ; Thu, 4 Nov 2010 23:48:09 +1100 (EST) Received: (qmail 16969 invoked by alias); 4 Nov 2010 12:48:04 -0000 Received: (qmail 16949 invoked by uid 22791); 4 Nov 2010 12:48:03 -0000 X-SWARE-Spam-Status: No, hits=-2.4 required=5.0 tests=AWL, BAYES_00, RCVD_IN_DNSWL_LOW X-Spam-Check-By: sourceware.org Received: from c60.cesmail.net (HELO c60.cesmail.net) (216.154.195.49) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 04 Nov 2010 12:47:58 +0000 Received: from unknown (HELO epsilon2) ([192.168.1.60]) by c60.cesmail.net with ESMTP; 04 Nov 2010 08:47:43 -0400 Received: from 89.241.157.248 ([89.241.157.248]) by webmail.spamcop.net (Horde MIME library) with HTTP; Thu, 04 Nov 2010 08:47:43 -0400 Message-ID: <20101104084743.u7m15lwiv48c8o0c-nzlynne@webmail.spamcop.net> Date: Thu, 04 Nov 2010 08:47:43 -0400 From: Joern Rennecke To: gcc-patches@gcc.gnu.org Subject: Committed: Fix middle-end/44765 MIME-Version: 1.0 User-Agent: Internet Messaging Program (IMP) H3 (4.1.4) 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 This fixes the warning about the out-of-range-access when PIC_OFFSET_TABLE_REGNUM has the default value of INVALID_REGNUM, like for mep-elf. Bootstrapped on i686-pc-linux-gnu. Committed as obvious. 2010-11-04 Joern Rennecke PR middle-end/44765 * emit-rtl.c (gen_rtx_REG): Before using PIC_OFFSET_TABLE_REGNUM as an index, check it is not INVALID_REGNUM. Index: emit-rtl.c =================================================================== --- emit-rtl.c (revision 166238) +++ emit-rtl.c (working copy) @@ -603,6 +603,7 @@ gen_rtx_REG (enum machine_mode mode, uns return return_address_pointer_rtx; #endif if (regno == (unsigned) PIC_OFFSET_TABLE_REGNUM + && PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM && fixed_regs[PIC_OFFSET_TABLE_REGNUM]) return pic_offset_table_rtx; if (regno == STACK_POINTER_REGNUM)