From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id DF6C33858025; Wed,  4 May 2022 07:52:15 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DF6C33858025
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/105158] ftree-ccp (CFG cleanup) drops DWARF const value
 attribute at -Og/-O1/-O2/-O3
Date: Wed, 04 May 2022 07:52:15 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: debug
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: patch
X-Bugzilla-Severity: enhancement
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-105158-4-h0toq6Gg7e@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-105158-4@http.gcc.gnu.org/bugzilla/>
References: <bug-105158-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Wed, 04 May 2022 07:52:16 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105158

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:1ba68f78c9d2510eb095f7d8a90c87cd5fd4183d

commit r13-99-g1ba68f78c9d2510eb095f7d8a90c87cd5fd4183d
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Apr 5 15:23:54 2022 +0200

    debug/105158 - improve debug stmt retaining for forwarder removal

    Currently when we cannot move debug stmt from a forwarder to the
    destination block we drop/reset them.  But in some cases as for
    the testcase we can move them to the predecessor when that has
    a single successor and we can insert after the last stmt of the
    block.  That allows us to preserve debug info here.

    2022-04-05  Richard Biener  <rguenther@suse.de>

            PR debug/105158
            * tree-cfgcleanup.cc (move_debug_stmts_from_forwarder):
            Move debug stmts to the predecessor if moving to the
            destination is not possible.
            (remove_forwarder_block): Adjust.
            (remove_forwarder_block_with_phi): Likewise.=