From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-415193-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 14638 invoked by alias); 13 Feb 2013 20:23:09 -0000
Received: (qmail 14604 invoked by uid 48); 13 Feb 2013 20:22:52 -0000
From: "arturomdn at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/56309] -O3 optimizer generates conditional moves instead of compare and branch resulting in almost 2x slower code
Date: Wed, 13 Feb 2013 20:23:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: arturomdn at gmail 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-Changed-Fields:
Message-ID: <bug-56309-4-pcWYEcbR1d@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-56309-4@http.gcc.gnu.org/bugzilla/>
References: <bug-56309-4@http.gcc.gnu.org/bugzilla/>
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
Content-Type: text/plain; charset="UTF-8"
MIME-Version: 1.0
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
X-SW-Source: 2013-02/txt/msg01358.txt.bz2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56309

--- Comment #1 from arturomdn at gmail dot com 2013-02-13 20:22:51 UTC ---
Created attachment 29443
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29443
Self contained source file with parameter x passed by reference (fast)

This source file differs from by-val-O3.ii only in the way parameter "x" is
passed.