[Bug lto/63968] [5 Regression] 175.vpr from cpu2000 fails to build with LTO

["marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63968

--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Problem was introduced by adding gcc_assert that guards if we really decrease a
key. I'm testing patch that implements slow path: if a key is bigger than
current value, we process correct increase operation (deletion + insertion).

Old implementation suppress replace operation if a key is bigger and there's no
notification about that.

bb-reorder output for 175.vpr:
lChanging key for bb 5 from -155 to -1015655.
Changing key for bb 12 from -533 to -1049033.
Changing key for bb 19 from -533 to -1049033.
Changing key for bb 22 from -53 to -1004853.
Changing key for bb 31 from -1250 to -1126250.
Changing key for bb 27 from -533 to -1006133.
Changing key for bb 23 from -53 to -1004853.
Changing key for bb 50 from -533 to -1049033.
Changing key for bb 51 from -53 to -1004853.
Changing key for bb 58 from -533 to -1049033.
Changing key for bb 61 from -53 to -1004853.
Changing key for bb 197 from -27 to -1002727.
Changing key for bb 205 from -9 to -1000809.
Changing key for bb 70 from -37 to -1003737.
Changing key for bb 79 from -37 to -1003737.
Changing key for bb 98 from -1003468 to -1001768.

Thanks,
Martin
>From gcc-bugs-return-467697-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Nov 20 10:30:07 2014
Return-Path: <gcc-bugs-return-467697-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Delivered-To: listarch-gcc-bugs@gcc.gnu.org
Received: (qmail 18962 invoked by alias); 20 Nov 2014 10:30:07 -0000
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
Delivered-To: mailing list gcc-bugs@gcc.gnu.org
Received: (qmail 18921 invoked by uid 48); 20 Nov 2014 10:30:04 -0000
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/63977] [5 Regression] r217769 caused many failures
Date: Thu, 20 Nov 2014 10:30:00 -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: 5.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: rth at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 5.0
X-Bugzilla-Flags:
X-Bugzilla-Changed-Fields: priority target_milestone
Message-ID: <bug-63977-4-7bRmSYZKoT@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-63977-4@http.gcc.gnu.org/bugzilla/>
References: <bug-63977-4@http.gcc.gnu.org/bugzilla/>
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: 2014-11/txt/msg02169.txt.bz2
Content-length: 344

https://gcc.gnu.org/bugzilla/show_bug.cgi?idc977

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1
   Target Milestone|---                         |5.0