From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25472 invoked by alias); 19 Dec 2013 16:56:52 -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 25430 invoked by uid 48); 19 Dec 2013 16:56:48 -0000 From: "ian at airs dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/29997] various targets: GCC fails to encode epilogues in unwind-info Date: Thu, 19 Dec 2013 16:56:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: target X-Bugzilla-Version: 4.3.0 X-Bugzilla-Keywords: EH, meta-bug, wrong-code, wrong-debug X-Bugzilla-Severity: normal X-Bugzilla-Who: ian at airs dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- 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: 2013-12/txt/msg01861.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29997 --- Comment #6 from Ian Lance Taylor --- All the insns in sh_expand_epilogue need to be examined to see if they need REG_CFA notes. Some of them already have them. I don't know what more are needed. For example, look at the changes made to the i386 backend when rth added the general support for unwinding through epilogues: http://gcc.gnu.org/ml/gcc-patches/2009-05/msg00277.html