From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23780 invoked by alias); 5 Sep 2013 19:36:00 -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 23737 invoked by uid 55); 5 Sep 2013 19:35:57 -0000 From: "hubicka at ucw dot cz" To: gcc-bugs@gcc.gnu.org Subject: [Bug gcov-profile/58250] -fprofile-use causes: "warning: -fprefetch-loop-arrays is not supported with -Os" Date: Thu, 05 Sep 2013 19:36:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: gcov-profile X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at ucw dot cz 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: 2013-09/txt/msg00297.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58250 --- Comment #3 from Jan Hubicka --- > Prefetching generally increases code size, so I think we shouldn't do it, at > least not by default. So I'd say for !optimize_size -fprofile-use should just > not add -fprefetch-loop-arrays. Yep, I think -fprofile-use code should not enable code expanding optimizations when optimize_size. I will look into that. Honza > > -- > You are receiving this mail because: > You are on the CC list for the bug.