From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15158 invoked by alias); 2 Jun 2014 19:12:51 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 15121 invoked by uid 55); 2 Jun 2014 19:12:47 -0000 From: "law at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/61094] [4.9/4.10 Regression] -O3 insn Internal compiler error in copyprop_hardreg_forward_1, at regcprop.c:775 Date: Mon, 02 Jun 2014 19:12:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: major X-Bugzilla-Who: law at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: law at redhat dot com X-Bugzilla-Target-Milestone: 4.9.1 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-06/txt/msg00094.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61094 --- Comment #15 from Jeffrey A. Law --- Author: law Date: Mon Jun 2 19:12:08 2014 New Revision: 211142 URL: http://gcc.gnu.org/viewcvs?rev=211142&root=gcc&view=rev Log: PR rtl-optimization/61094 * ree.c (combine_reaching_defs): Do not reextend an insn if it was marked as do_no_reextend. If a copy is needed to eliminate an extension, then mark it as do_not_reextend. PR rtl-optimization/61094 * g++.dg/pr61094: New test. Added: trunk/gcc/testsuite/g++.dg/pr61094.C Modified: trunk/gcc/ChangeLog trunk/gcc/ree.c trunk/gcc/testsuite/ChangeLog