From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30371 invoked by alias); 23 Oct 2011 10:57:47 -0000 Received: (qmail 30361 invoked by uid 22791); 23 Oct 2011 10:57:46 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_CP X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 23 Oct 2011 10:57:34 +0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/50824] memset or memcpy on structure prevents SRA Date: Sun, 23 Oct 2011 10:57:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: WAITING X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Status Last reconfirmed Ever Confirmed Message-ID: In-Reply-To: References: 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: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2011-10/txt/msg02355.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50824 Richard Guenther changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2011-10-23 Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther 2011-10-23 10:57:29 UTC --- No, I think because it counts as address-taken, not because it escapes. Do you have a testcase? Most memcpys should be folded to a plain assignment already, but we don't fold memset to zero to = {} I guess.